Football helmet

A new football helmet includes: a jaw flap attached to the ear flap of the helmet, and the jaw flap overlies the sides of the lower jaw of football player; and a face guard connector which includes a shock absorbing member.

 

1. A football helmet, comprising:

a plastic outer shell having an inner wall surface and an outer wall surface, the shell including a crown, a back, a front, a lower edge surface, and two sides, the shell being adapted to receive a head of a wearer of the helmet, the wearer having a lower jaw having two side portions;

each side of the shell includes an ear flap adapted to generally averlie an ear and a portion of a cheek of the wearer;

each ear flap generally extending downwardly from its respective side;

each ear flap including a jaw flap attached to the ear flap, each jaw flap extending from the ear flap forwardly toward the front of the shell and adapted to generally extend to overlie the front portion of the lower jaw of the wearer of the helmet;

each side having a chin protector connector, adapted to connect a portion of a chin protector to the shell;

each side having a face guard connector, adapted to connect a portion of a face guard to the shell;

and a liner connector, adapted to connect a shock absorbing liner to a portion of the inner wall surface of the shell.

2. The football helmet of claim 1, including a chin protector having two sides and at least two flexible members associated with each side of the chin protector, the at least two flexible members adapted to engage with one of the chin protector connectors on the sides of the shell.

3. The football helmet of claim 2, wherein the chin protector connector include at least two notches formed in the lower edge surface of the shell, with at least one notch being disposed on each side of the shell, and at least one of the flexible members on each side of the chin protector passes through at least one of the notches on each side of the shell.

4. The football helmet of claim 3, wherein the at least two notches are disposed in the lower edge surface of the shell adjacent each ear flap of the shell.

5. The football helmet of claim 4, wherein each ear flap includes an ear opening, adapted to be disposed adjacent an ear of the wearer to permit the transmission of sound to the wearer, and the at least one notch is disposed in the lower edge surface of the shell which is substantially, directly below the ear opening.

6. The football helmet of claim 3, wherein each of the flexible members is a flexible strap.

7. The football helmet of claim 3, wherein the at least two flexible members, associated with each side of the chin protector each includes an upper flexible member and a lower flexible member, and the lower flexible member passes through at least one of the notches on each side of the shell.

8. The football helmet of claim 7, wherein a first portion of each lower flexible member is disposed adjacent the inner wall surface of the shell, a second portion of the lower flexible member passes through at least one of the notches, and a third portion of the flexible member is disposed adjacent the outer surface of the shell.

9. The football helmet of claim 8, wherein the third portion of each lower flexible member is releaseably secured to a portion of the chin protector connector disposed on the outer wall surface of the shell.

10. The football helmet of claim 7, wherein the upper flexible members are releaseably secured to the outer wall surface of the sides of the shell by portions of the chin protector connector, which are disposed above and adjacent ear openings formed in the ear flaps of the shell.

11. The football helmet of claim 2, wherein the chin protector connector includes at least one slot formed in each side of the shell, and at least one of the flexible members on each side of the chin protector passes through the at least one slot.

12. The football helmet of claim 11, wherein the at least one slot, formed in each side of the shell, is disposed in each ear flap of the shell.

13. The football helmet of claim 12, wherein each ear flap of the shell includes an ear opening adapted to be disposed adjacent an ear of the wearer to permit the transmission of sound to the wearer, and the at least one slot is disposed forwardly of each ear opening and between the front of the shell and each ear opening.

14. The football helmet of claim 11, wherein each slot is tapered with respect to the inner and outer wall surfaces of the shell.

15. The football helmet of claim 1, including a shock absorbing liner associated by the liner connector with the inner wall surface of the shell.

16. The football helmet of claim 15, wherein the shock absorbing liner is releaseably connected to the inner wall surface of the shell by the liner connector.

17. The football helmet of claim 16, wherein the liner connector includes a hook and loop fastener assembly associated with the shock absorbing liner and the inner wall surface of the shell.

18. The football helmet of claim 15, wherein the shock absorbing liner includes a plurality of resilient members adapted to absorb shock forces exerted upon the shell, and the plurality of resilient members are disposed along the inner wall surface of the back and sides of the shell, including at least one resilient pad member disposed upon the inner wall surface of a portion of each of the jaw flaps of the shell.

19. The football helmet of claim 18, wherein each of the at least one resilient pad members disposed upon the inner wall surface of a portion of the jaw flaps of die shell are formed integral with the plurality of resilient members.

20. The football helmet of claim 18, wherein at least one resilient pad member disposed upon the inner wall surface of a portion of a jaw flap of the shell is releaseably secured to the plurality of resilient members.

21. The football helmet of claim 20, wherein the shock absorbing liner has a first and a second end, and has a connector member disposed at each of the ends of the liner, each connector member adapted to connect to the shock absorbing liner, at least one of the, at least one, resilient pad members disposed upon the inner wall surface of a portion of the jaw flap of the shell.

22. The football helmet of claim 21, wherein tho connector member is a sling that suspends the at least one of the, at least one, resilient pad members.

23. The football helmet of claim 22, wherein each sling forms an opening that receives the at least one of the, at least one, resilient pad members.

24. The football helmet of claim 23, wherein the opening closely conforms to, and snugly retains, an outer configuration of the at least one of the, at least one, resilient pad members.

25. The football helmet of claim 18, wherein on each side of the inner wall surface of the shell, an ear channel is formed between at least one of the resilient members of the shock absorbing liner and the at least one resilient pad member disposed upon the inner wall surface of a portion of the jaw flap, each ear channel being disposed adjacent an ear opening formed in each ear flap.

26. The football helmet of claim 25, wherein each ear channel extends along an axis disposed substantially parallel with a substantially vertical axis of the shell extending front the crown of the shell to the lower edge surface of the shell adjacent the ear flap of the shell.

27. The football helmet of claim 26, wherein the ear channel is substantially unobstructed from the ear opening to the lower edge surface of the shell below the ear opening, whereby the wearer of the helmet may easily put on, or take off, the helmet, without substantial contact between the ear of the wearer and the resilient members and resilient pad members of the shock absorbing liner.

28. The football helmet of claim 18, wherein at least one of the plurality of resilient members is disposed in a chamber, and the chamber includes a fluid.

29. The football helmet of claim 28, wherein the fluid is a pressurized fluid.

30. The football helmet of claim 29, wherein the fluid is air.

31. The football helmet of claim 18, wherein at least one of the resilient pad members is disposed in a chamber, and the chamber includes a fluid.

32. The football helmet of claim 31, wherein the fluid is a pressurized fluid.

33. The football helmet of claim 32, wherein the fluid is air.

34. The football helmet of claim 31, wherein the at least one resilient member includes an inflation valve in fluid transmitting relationship with the chamber.

35. The football helmet of claim 34, wherein the inflation valve is accessible from within the shell to permit a fluid to be transmitted into the chamber.

36. The football helmet of claim 34, wherein the inflation valve is associated with an inflation port disposed in the shell, the inflation port being disposed in the outer wall surface of the shell and passing through the shell to the inner wall surface of the shell.

37. The football helmet of claim 1, including a crown shock absorbing pad disposed adjacent the inner wall surface of the crown of the shell.

38. The football helmet of claim 37, wherein the crown shock absorbing pad is inflatable.

39. The football helmet of claim 1, wherein the outer shell has a vertical, longitudinal axis extending downwardly from the crown, and each ear flap generally lies in a plane which is substantially parallel to the longitudinal axis of the outer shell.

40. The football helmet of claim 39, wherein the outer shell has a vertical, longitudinal axis extending downwardly from the crown, and each jaw flap generally lies in a plane which is substantially parallel to the longitudinal axis of the outer shell.

41. The football helmet of claim 1, wherein the crown of the shell includes at least one ventilation opening which forms an air passageway extending from the outer wall surface through the shell to the inner wall surface of the shell.

42. A helmet, comprising:

an outer shell having an inner wall surface and an outer wall surface, the shell including a crown, a back, a front, a lower edge surface, and two sides wherein each side has a chin protector connector, the shell being adapted to receive a head of a wearer of the helmet;

a chin protector having two sides and at least two flexible members associated with each side of the chin protector, the at least two flexible members adapted to engage with one of the chin protector connectors on the sides of the shell, and the chin protector connector includes at least two notches formed in the lower edge surface of the shell, with at least one notch being disposed on each side of the shell, and at least one of the flexible members on each side of the chin protector passes through at least one of the notches on each side of the shell.

43. The helmet of claim 42, wherein the at least two notches are disposed in the lower edge surface of the shell adjacent each side of the shell.

44. The helmet of claim 43, wherein each side includes an ear opening, adapted to be disposed adjacent an ear of the wearer to permit the transmission of sound to the wearer, and the at least one notch is disposed in the lower edge surface of the shell which is substantially, directly below the ear opening.

45. The helmet of claim 42, wherein the at least two flexible members, associated with each side of the chin protector each includes an upper flexible member and a lower flexible member, and the lower flexible member passes through at least one of the notches on each side of the shell.

46. The helmet of claim 45, wherein a first portion of each lower flexible member is disposed adjacent the inner wall surface of the shell, a second portion of the lower flexible member passes through at least one of the notches, and a third portion of the flexible member is disposed adjacent the outer surface of the shell.

47. The helmet of claim 46, wherein the third portion of each lower flexible member is releaseably secured to a portion of the chin protector connector disposed on the outer wall surface of the shell.

48. A helmet, comprising:

an outer shell having an inner wall surface and an outer wall surface, the shell including a crown, a back, a front, a lower edge surface, and two sides, the shell being adapted to receive a head of a wearer of the helmet;

a shook absorbing and sizing liner associated with the inner wall surface of the shell; the shook absorbing and sizing liner includes a plurality of resilient members adapted to both absorb shock forces exerted upon the shell and to help size the helmet to the head of the wearer of the helmet, and the plurality of resilient members are disposed along the inner wall surface of the back and sides of the shell;

the shock absorbing and sizing liner including at least one resilient member which contacts the lower, frontal portion of a mandible of the wearer of the helmet.

49. The helmet of claim 48, wherein at least one of the plurality of resilient members is disposed in a chamber, and the chamber includes a fluid.

50. The helmet of claim 49, wherein the fluid is a pressurized fluid.

51. The helmet of claim 50, wherein the fluid is air.

52. A football helmet, comprising:

an outer shell having an inner wall surface and an outer wall surface, the shell including a crown, a back, a front, a lower edge surface, and two sides, the shell being adapted to receive a head of a wearer of the helmet, the head having a basic plane and a coronal plane, the wearer having a lower jaw having two side portions;

each side of the shell includes an ear flap adapted to generally overlie an ear and a portion of a cheek of the wearer each ear flap generally extending downwardly from its respective side;

each side having a chin protector connector, adapted to connect a portion of a chin protector to the shell;

each side having a face guard connector positioned along a bottom edge of the shell, the face guard connector adapted to connect a portion of a face guard to the shell;

a substantial amount of energy foam disposed within the outer shell and in front of the coronal plane of the head of the wearer and below the basic plane of the head of the wearer; and,

wherein each ear flap includes a jaw flap attached to the ear flap, each jaw flap extending from the ear flap forwardly toward the front of the shell and adapted to generally extend to overlie the side and front portions of the lower jaw of the wearer of the helmet.

53. A football helmet comprising:

a shell configured to receive a head of a wearer of the helmet, the shell having a front region, a rear region, and two side regions;

an ear flap depending from each side region of the shell wherein the ear flap overlies a ear of the wearer; and,

a jaw flap extending from each ear flap, respectively, whereby each jaw flap overlies a front portion of a mandible of the wearer.

54. The football helmet of claim 53 wherein the mandible has a ramus portion, a body portion, and a protuberance portion, and wherein the jaw flap overlies the body portion of the mandible of the wearer.

55. The football helmet of claim 54 wherein the jaw flaps extending from the ear flaps define a central opening that exposes the protuberance portion of the mandible of the wearer.

56. The football helmet of claim 53 wherein the shell has a crown region with a longitudinal axis extending vertically through the crown region, and wherein the ear flap resides in a plane that is substantially parallel to the longitudinal axis.

57. The football helmet of claim 56 wherein the jaw flap resides in a plane that is substantially parallel to the longitudinal axis.

58. The football helmet of claim 53 further comprising a shock absorbing liner releasably connected to an inner surface of the shell, the shock absorbing liner having a plurality of resilient members.

59. The football helmet of claim 58 wherein at least one resilient member is disposed against an inner surface of the ear flap.

60. A helmet for use in playing a sport, the helmet comprising:

a plastic shell configured to receive a head of a wearer of the helmet, the shell having a front region, a rear region, two side regions;

an ear flap depending from each side region of the shell wherein the ear flap overlies an ear and a portion of a cheek of the wearer; and,

a jaw flap extending from each ear flap, wherein the jaw flap has a terminal end that is directed towards the front region of the shell and that overlies a chin of the wearer, and wherein the jaw flaps collectively define a central opening.

61. The helmet of claim 60 further comprising a shock absorbing liner releasably connected to an inner surface of the shell, the shock absorbing liner having a plurality of resilient members.

62. The helmet of claim 60 wherein at least one resilient member is disposed against in inner surface of the ear flap.

63. A helmet for use in playing a sport, the helmet comprising:

a shell configured to receive a head of a wearer of the helmet, the shell having a front region, a rear region, and two side regions;

an ear flap depending from each side region of the shell wherein the ear flap overlies an ear and a portion of a cheek of the wearer;

a jaw flap extending from each ear flap towards the front region of the shell, wherein each jaw flap overlies a chin of the wearer; and,

at least one face guard connector positioned along a bottom edge of the shell, wherein the connector is configured to connect a portion of a face paid to the shell.

64. The helmet of claim 63 wherein the jaw flap extends over an extent of a lower jaw area of the wearer of the helmet.

65. The helmet of claim 63 wherein the face guard connector has a shock absorber member that omni-directionally distributes an impact force throughout the shell.

66. The helmet of claim 65 wherein the face guard connector is removably connected to the ear flap proximate the jaw flap.

67. The helmet of claim 63 further comprising a shock absorbing liner releasably connected to an inner surface of the shell, the shock absorbing liner having a plurality of resilient members.

68. The helmet of claim 67 wherein at least one resilient member is disposed against an inner surface of the ear flap.

69. A sports helmet comprising:

a shell configured to receive a head of a wearer of the helmet, the shell having a front region, a rear region, and two side regions;

an ear flap depending from each side region of the shell wherein the ear flap overlies an ear of the wearer;

a jaw flap extending from each ear flap towards the front region of the shell, wherein the jaw flap has a terminal edge that is coincident with a chin of the wearer; and,

at least one face guard connector positioned along a bottom edge of the shell, wherein the connector is configured to connect a portion of a face guard to the shell.

70. A spoilt helmet comprising:

a plastic outer shell configured to receive a head of a wearer of the helmet, the shell having a front portion, a rear portion, and two opposed side portions, and wherein the shell has a lower edge with a circumference;

an ear flap depending from each side portion of the shell; and,

a jaw flap extending from each ear flap, respectively, each jaw flap having a terminal end wherein the terminal ends reside in a single quadrant of the circumference of the shell.

71. A sports helmet comprising:

a shell configured to receive a head of a wearer of the helmet, the shell having a front region, a rear region, and two side regions;

an ear flap depending from each side region of the shell wherein the ear flap overlies an ear of the wearer;

a jaw flap extending from each ear flap towards the front region of the shell, wherein the jaw flap overlies an extent of a mandible of the wearer; and,

a jaw pad removably connected to each jaw flap, the jaw pad having a density of at least approximately 5 pounds per cubic foot and at least approximately a 25% compression deflection of 8 pounds per square inch.

72. The sports helmet of claim 71, wherein the jaw pad is formed from PVC nitrile foam.

73. The sports helmet of claim 71, wherein the jaw pad is formed from polyurethane foam.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention relates to helmets, such as football helmets.

2. Description of the Related Art

Various activities, such as contact sports, and in particular the sport of football, require the use of helmets to attempt to protect participants from injury to their heads due to impact forces that may be sustained during such activities. Various types of helmets have been in use in the sport of football, ever since individuals began wearing helmets to attempt to protect their heads many years ago. Typically, these helmets have included: an outer shell, generally made of an appropriate plastic material, having the requisite strength and durability characteristics to enable them to be used in the sport of football; some type of shock absorbing liner within the shell; a face guard; and a chin protector, or chin strap, that fits snugly about the chin of the wear of the helmet, in order to secure the helmet to the wearer's head, as are all known in the art.

Over the years, various improvements have been made to the various components of a football helmet; however, in general, the overall configuration and shape of a football helmet, has remained the same for many years. In this regard, a typical football helmet has included an ear flap as a part of the shell forming the helmet, and the ear flap generally overlies an ear of the wearer and a portion of a cheek of the wearer; however, the jaw of the wearer typically extends outwardly beyond the outer periphery of the helmet, whereby a majority portion of the jaw of the wearer has only been protected by the chin protector.

In general, conventional football helmets presently have ear flaps and the lower portions thereof taper inwardly toward the neck and rearmost portions of the player's jawbone overlied by the ear flaps. As a consequence of this structure, when a player removes his, or her, helmet, it is necessary to pull the sides, or ear flaps, of the helmet outwardly so that the helmet may clear the player's ears. Further in this regard, conventional helmets may also include pads adjacent the player's ear and these pads generally are located along the lower and front edge of the ear flap. These pads must also be pulled away from the ears of the player when removing a conventional helmet. The repeated putting on, and taking off, a football helmet may cause irritation to the player's ear. It would be desirable if the putting on, and removal of, a football helmet did not cause repeated sliding frictional contact with a player's ears, to prevent potential irritation to the player's ear.

Conventional football helmets utilize face guards which are generally made of either a metallic or thermoplastic material. Since a player wears a helmet for a considerable period of time during practices and games, it would be desirable to minimize the weight of the helmet, while not sacrificing protection. The face guards of conventional helmets are typically attached to the sides of the helmet, as well as upon the front of the helmet. Thus, the face guard must extend rearwardly in order to be attached to the side of the helmet. It would be desirable if the size of the face guard could be reduced, thereby reducing the weight of the face guard used in the helmet.

While it is the desire and goal that a football helmet, and other types of protective helmets, prevent injuries from occurring, it should be noted that as to the helmet of the present invention, as well as prior art helmets, due to the nature of the sport of football in particular, no protective equipment or helmet can completely, totally prevent injuries to those individuals playing the sport of football. It should be further noted that no protective equipment can completely prevent injuries to a player, if the football player uses his football helmet in an improper manner, such as to butt, ram, or spear an opposing player, which is in violation of the rules of football. Improper use of a helmet to butt, ram, or spear an opposing player can result in severe head and/or neck injuries, paralysis, or death to the football player, as well as possible injury to the football player's opponent. No football helmet, or protective helmet, such as that of the present invention, can prevent head, chin, or neck injuries a football player might receive while participating in the sport of football. The helmet of the present invention is believed to offer protection to football players, but it is believed that no helmet can, or will ever, totally and completely prevent head injuries to football players.

The football helmet of the present invention, when compared to previously proposed conventional football helmets, has the advantages of: being designed to attempt to protect a wearer of the helmet from injuries caused upon an impact force striking the helmet; preventing irritation to a player's ear; affording more protection to the jaw of the wearer; and providing for the use of a lighter weight face guard.

SUMMARY OF THE INVENTION

In accordance with the invention, the foregoing advantages are believed to have been achieved by the football helmet of the present invention. The football helmet of the present invention may include: an outer shell having an inner wall surface and an outer wall surface, the shell including a crown, a back, a front, a lower edge surface, and two sides, the shell being adapted to receive the head of wearer of the helmet, the wearer having a lower jaw having two side portions; each side of the shell includes an ear flap adapted to generally overlie an ear and a portion of a cheek of the wearer; each ear flap generally extending downwardly from its respective side; each ear flap including a jaw flap attached to the ear flap, each jaw flap extending from the ear flap forwardly toward the front of the shell and adapted to generally extend to overlie a side portion of the lower jaw of the wearer of the helmet; each side having a chin protector connector, adapted to connect a portion of a chin protector to the shell; each side having a face guard connector, adapted to connect a portion of a face guard to the shell; and a liner connector, adapted to connect a shock absorbing liner to a portion of the inner wall surface of the shell. Another feature of the present invention is that there may be a face guard connected to at least both sides of the helmet by the face guard connectors, each face guard connector including a shock absorber member adapted to substantially omni-directionally distribute an impact force, exerted upon the face guard, throughout the shell. A further feature of this aspect of the present invention is that each shock absorber member may be a grommet disposed in an opening formed in a side of the shell.

In accordance with another aspect of the present invention, the football helmet may include a chin protector having two sides and at least two flexible members associated with each side of the chin protector, the at least two flexible members adapted to engage with one of the chin protector connectors on the sides of the shell. Another feature of this aspect of the invention is that the chin protector connector may include at least two notches formed in the lower edge surface of the shell, with at least one notch being disposed on each side of the shell, and at least one of the flexible members on each side of the chin protector passes through at least one of the notches on each side of the shell. A further aspect of the invention is that the at least two notches may be disposed in the lower edge surface of the shell adjacent each ear flap of the shell. An additional feature of this aspect of the invention is that the chin protector connector may include at least one slot formed in each side of the shell, and at least one of the flexible members on each side of the chin protector passes through the at least one slot.

In accordance with another aspect of the present invention, the football helmet may include a shock absorbing liner associated with the inner wall surface of the shell by the liner connector. An additional feature of this aspect of the present invention is that the shock absorbing liner may include a plurality of resilient members adapted to absorb shock forces exerted upon the shell, and the plurality of resilient members may be disposed along the inner wall surface of the back and sides of the shell, including at least one resilient pad member disposed upon the inner wall surface of a portion of each of the jaw flaps of the shell. A further feature of this aspect of the present invention is that each of the at least one resilient pad members may be formed integral with the plurality of resilient members, or at least one resilient pad member may be releaseably secured to the plurality of resilient members. An additional feature of this aspect of the present invention is that on each side of the inner wall surface of the shell, an ear channel may be formed between at least one of the resilient members of the shock absorbing liner and the at least one resilient pad member disposed upon the inner wall surface of a portion of the jaw flap, and each ear channel may be disposed adjacent an ear opening formed in each flap.

Another aspect of the present invention is that the outer shell may have a vertical, longitudinal axis extending downwardly from the crown of the helmet, and each ear flap may generally lie in a plane which is substantially parallel to the longitudinal axis of the outer shell. Another feature of this aspect of the present invention is that the outer shell of the helmet may have a vertical, longitudinal axis extending downwardly from the crown, and each jaw flap may generally lie in a plane which is substantially parallel to the longitudinal axis of the outer shell.

The football helmet of the present invention, when compared with previously proposed conventional football helmets, is believed to have the advantages of: offering protection to football players against injuries caused by impact forces exerted upon the football helmet during the playing of the game of football; providing a football helmet which is easier for the wearer of the helmet to put on and take off, and may minimize irritation to a player's ear; providing protection for the jaw of the wearer; and providing a smaller, thus lighter in weight, face guard.

BRIEF DESCRIPTION OF THE DRAWING

In the Drawing:

FIG. 1 is a perspective view of an embodiment of a football helmet in accordance with the present invention;

FIG. 1A is perspective view of another embodiment of a football helmet in accordance with the present invention;

FIG. 1B is an exploded view of the portion of the helmet of FIG. 1A shown within dotted lines 1B;

FIG. 2 is a partial exploded view of the football helmet of FIG. 1;

FIG. 3 is a cross-sectional view taken along line 3-3 of FIG. 2, and illustrating one embodiment of a face guard connector in accordance with the present invention;

FIG. 4 is an exploded side view of the face guard connector of FIG. 3;

FIG. 5 is a perspective view of a face guard mounting clip;

FIG. 6 is a cross-sectional view of the face guard mounting clip of FIG. 5, taken along line 6-6 of FIG. 5;

FIG. 7 is a partial cross-sectional view of portion of the football helmet of FIGS. 1 and 2, taken along line 7-7 of FIG. 2;

FIG. 8 is a partial exploded perspective view of a portion of the football helmet of FIGS. 1 and 2, illustrating one embodiment of a resilient pad member, or jaw pad, associated with the jaw flap of a helmet of the present invention;

FIG. 9 is a cross-sectional view of the resilient pad member of FIG. 8, taken along line 9-9 of FIG. 8;

FIG. 10 is a partial cross-sectional view of a portion of the resilient pad member of FIGS. 8 and 9 taken along line 10-10 of FIG. 9;

FIG. 11 is another side view of the resilient pad member, or jaw pad, of FIGS. 8-10;

FIG. 12 is a bottom view of the football helmet of FIGS. 1 and 8;

FIG. 13 is a partial exploded perspective view of the crown of the football helmet of FIGS. 1 and 1A, showing a crown pad in accordance with the present invention;

FIG. 14 is a partial exploded perspective view of a shock absorbing liner in accordance with the present invention, corresponding to the shock absorbing liner shown in FIGS. 8 and 12;

FIG. 15 is a partial exploded perspective view of the helmet of FIG. 1A, illustrating another embodiment of a resilient pad member, or jaw pad, and face guard connector in accordance with the present invention;

FIG. 16 is a partial exploded perspective view of another shock absorbing liner provided with another embodiment of the resilient pad member, or jaw pad, of the present invention, as is shown in FIG. 15;

FIG. 17 is another partial exploded perspective view of the helmet shown in FIG. 15;

FIG. 18 is a partial cross-sectional view of a portion of the resilient pad member, or jaw pad, of FIG. 15 taken along line 18-18 of FIG. 15;

FIG. 19 is a side view of the helmet of the present invention, illustrating the chin protector connecter of the football helmet of FIG. 1A, including a wearer of the helmet being partially shown in phantom lines, including a general outline of a conventional ear flap being also shown in phantom lines; and

FIG. 20 is a front view of the football helmet of the present invention of both FIGS. 1 and 1A.

While the invention will be described in connection with the preferred embodiments shown herein, it will be understood that it is not intended to limit the invention to those embodiments. On the contrary, it is intended to cover all alternatives, modifications, and equivalents, as may be included within the spirit and scope of the invention as defined by the appended claims.

DETAILED DESCRIPTION OF THE INVENTION

In FIGS. 1, 1A, and 19, a football helmet 30 in accordance with the present invention is shown to generally include: an outer shell 31, ear flap 32, each ear flap 32 including a jaw flap 33, a chin protector connector 34, a face guard connector 35, and a liner connector (not shown). Outer shell 31 is preferably made of any suitable plastic material having the requisite strength and durability characteristics to function as a football helmet, or other type of protective helmet, such as polycarbonate plastic materials, one of which is known as LEXAN.RTM., as is known in the art. Outer shell 31 has an inner wall surface 37 (FIG. 12) and an outer wall surface 38. Shell 31 further includes a crown 39, a back 40, a front 41, a lower edge surface 42, and two sides 43 (FIGS. 1 and 1A) and 44 (FIG. 19). As is known in the art, and as will be hereinafter described in greater detail, shell 31 is adapted to receive the head 45 of a wearer 46 of the helmet 30, the wearer 46 having a lower jaw 47 (FIG. 19) having two side portions 48 (FIG. 19), only the right side portion 48 of jaw 47 being illustrated. As shown in FIG. 19, the lower jaw 47 terminates generally adjacent to the chin 49 of the wearer's head 45 toward the front of the head 45, and the lower jaw, or mandible 47, generally ends its connection with the upper law generally adjacent, and forwardly of ears 50 of wearer 46.

Still with reference to FIGS. 1, 1A and 19, each side 43, 44 of the shell 31 includes an ear flap 32, the left ear flap 32 being shown in FIGS. 1 and 1A and the right ear flap 32 being illustrated in FIG. 19, and ear flaps 32 are adapted to generally overlie an ear 50 (FIG. 19) and portion of a cheek 52 of the wearer 46. Each ear flap 32 generally extends downwardly from its respective side 43, 44, and in general extends in a direction extending from crown 39 downwardly toward the lower edge surface 42 of shell 31. Each ear flap 32 includes a jaw flap 33, the left hand jaw flaps 33 being illustrated in FIGS. 1 and 1A, and the right jaw flap 33 being illustrated in FIG. 19. Each jaw flap 33 extends from it corresponding ear flap 32 forwardly toward the front 41 of the shell 31, and as seen in FIG. 19 as adapted to generally extend to overlie a side portion 48 of the lower jaw 47 of the wearer 46 of the helmet.

As shown in FIG. 19, jaw flap 33 is shown to extend forwardly to overlie a forwardly disposed portion 55 of lower jaw 47 disposed toward the chin 49 of wearer 46. As illustrated in FIG. 19, jaw flap 33 extends forwardly enough to overlie the side of the chin 49 of wearer 46. In this regard, it should be noted that helmets 30 of the present invention are generally made with outer shells 31 of varying sizes, dependent upon the size of the head of the particular wearer of the helmet. In FIG. 19, helmet 30 is shown superimposed upon what is believed to be an average size head of a wearer of the helmet 30, whereby jaw flap 33 is shown to generally overlie the entire side portion 48 of lower jaw 47, including the fowardly disposed portion 55 of lower jaw 47 adjacent the chin 49 of wearer 46, including overlying the side of the chin 49 of wearer 46. Since FIG. 19 is not a representation of all sizes of heads and all types of chin structures, such as chins which may greatly extend outwardly away from the head of the wearer, it should be understood that it is perhaps possible that someone wearing a helmet 30 in accordance with the present invention may have a slight side portion of his or her chin extending outwardly beyond the outer periphery of jaw flap 33. It is believed that jaw flap 33 will overlie at least the forwardly disposed portion 55 of the lower jaw 47 of virtually all wearers of helmets 30. In this regard, the outer periphery 60, shown in phantom lines in FIG. 19, of a conventional ear flap, without the jaw flap 33 of the present invention generally does not overlie a forwardly disposed portion 55 of the lower jaw, or mandible, 47 of a wearer of a conventional helmet. Furthermore, the ear flap of a conventional football helmet virtually never overlies the chin 49 of a wearer of a conventional helmet.

With reference to FIGS. 12, 19, and 20, the outer shell 31 has a vertical, longitudinal axis 61 generally extending downwardly from crown 39, and each ear flap 32 generally lies in a plane which is substantially parallel to the longitudinal axis 61 of shell 31. Similarly, each jaw flap 33 also generally lies in a plane which is substantially parallel to the longitudinal axis 61 of the outer shell 31. The crown 39 of shell 31 may be provided with at least one, and preferably a plurality of ventilation openings, or air vents, 62, which permits the passage of air through shell 31. Vents 62 permit air adjacent the head 45 of wearer 46, which has been heated by being in contact with head 45, to be vented and passed outwardly through openings 62, which may contribute to greater comfort being afforded the wearer 46 of helmet 30. As shown in FIG. 12, the lower edge 42 of the shell 31 defines a circumference, and the shell 31 is configured such that the terminal ends of the jaw flaps 33 reside in the same or single quadrant of an X-Y coordinate system.

With reference to FIGS. 1, 1A, 8, and 15, the face guard connector 35 of the present invention will be described in greater detail. Face guard 65 is formed of a plurality of wire members 66, which may be formed of any suitable material having the requisite strength and durability characteristics to function as a football helmet face guard, as is known in the art. The wire members 66 may be preferably formed of a metallic material, such as any suitable steel, and as is known in the art, the wire members 66 may be provided with a suitable plastic coating. Additionally, the wire members 66 may be of a solid or tubular cross-sectional configuration. Alternatively, wire members 66 may be formed of any suitable plastic material, this material also having the requisite strength and durability characteristics to perform the functions of a football helmet face guard. The face guard connectors 35 are adapted to connect a portion of the face guard 65 to shell 31. A face guard connector 35 is disposed on each side 43, 44 of shell 31. One embodiment of face guard connector 35 is shown in FIGS. 1, 1A and 8, while another embodiment of face guard connector is illustrated in FIGS. 15 and 17. In general, the two embodiments of face guard connector 35 are substantially similar, whereby the same components will be described with identical reference numerals, and primed reference numerals will be used in connection with components having the same, or similar functions, but different structures or configurations.

The details of the face guard connector 35 used in connection with the helmet 30 of FIGS. 1, 1A, 2 and 8, are illustrated in FIGS. 3 and 4, whereas the details of construction of the face guard connector 35 of FIG. 15 is illustrated in FIGS. 15 and 17. With reference to FIGS. 3, 4, 8, and 15, face guard connector 35 of the present invention is shown to include a shock absorber member 67 adapted to substantially omni-directionally distribute an impact force, exerted upon the face guard 65, through shell 31. Preferably, each shock absorber member 67 is a grommet 68 disposed in an opening 69 formed in a side 43, 44 of shell 31. Grommet 68 may be formed of rubber, or any other suitable elastomeric material which will function so as to permit substantially omni-directionally distribution of an impact force, exerted upon the face guard 65, throughout shell 31 of helmet 30. Preferably, grommet 68 is formed of synthetic rubber. In this regard, face guard 65 can incur impact forces in a variety of directions during a game of football. For example, as a player strikes the ground upon being tackled, his or her face guard might strike the ground at the lower most center 70 (FIG. 1) of face guard 65, which would be an upwardly exerted force upon face guard 65. Similarly, another player's helmet, or hand, might push downwardly upon the wire member 71 (FIG. 1) of face guard 65, thus exerting a downwardly extending impact force upon face guard 65. Additionally, a player's face guard could be struck in the direction from one of the sides 43, 44 of helmet 30, which would be a side or lateral impact force being exerted upon face guard 65. Of course, it would be readily apparent to one of ordinary skill in the art that an impact force could be exerted upon face guard 65 from any direction in which it is possible to strike, or impact against, face guard 65. As will be hereinafter described in greater detail, as an impact force is exerted upon face guard 65, the shock absorber member 67, or grommet 68, functions to absorb, or attenuate, the impact force exerted upon the face guard, and to substantially omni-directionally distribute the impact force through the shell 31.

Grommet 68 may be a circular shaped member 72 with an opening 73 passing therethrough. As seen in FIG. 3, each circular shaped member 72 may include an inner, annular, or circular shaped lip 74 that abuts the inner wall surface 37 of the shell 31, and outer, annular shaped lip 75 that abuts the outer wall surface 38 of the shell 31. Each of the face guard connectors 35 has a recess 76 (FIG. 4) which receives a portion of the grommet 68 in a close fitting, abutting relationship as seen in FIG. 3. Preferably, the outer, annular shaped lip 75 is received in the recess 76. As shown in FIGS. 3, 8, and 15, a bushing 77 may be disposed within the opening 73 which passes through grommet 68. Preferably, the bushing is made of a suitable plastic material having the requisite strength and durability characteristics to function as part of a football helmet face guard connector. Preferably, bushing 77 is formed of a thermoplastic material, such as SURLYN®. Bushing 77 may include a cap member 78 having an upper wall surface 79 (FIG. 3) and a lower wall surface 80 (FIGS. 8 and 15), with the lower wall surface 80 being disposed adjacent the inner wall surface 37 of the shell 31. A bolt 82 having first and second ends 83, 84 may be passed through each bushing and the face guard connector body members, or clips, 85, 85′ of each face guard connector 35. A nut 86 receives the second end 84 of the bolt 82.

By bolt 82 being rotatably threaded and rotated with respect to nut 86, face guard 65 may be secured to each side 43, 44 of shell 31. It should be noted that although bolt 82 is inserted from the outside of shell 31, its disposition could be reversed, although it is preferred to be inserted from outside the shell, for ease of removal should a player be injured and it becomes necessary to remove face guard 65. The upper wall surface 79 of each cap member 78 may include a recess 87 which receives a corresponding nut 86. The recess 87 of the cap member 78 preferably matingly receives the corresponding nut 86 and the recess 87 restricts rotational movement of the nut with respect to the shell 31. Preferably, the nut 86 is a T-nut 88, which includes an upper rectangular shaped member 89 and a threaded cylindrical member 90 which is received and disposed within bushing 77.

Each of the face guard connectors 35 of the present invention include a face guard connector body member 85, 85′. With reference to FIGS. 3, 4, and 8, face guard connector body member 85 will be described. Face guard connector 85 has an inner surface, or inner wall surface, 91, and outer surface, or outer wall surface, 92. Each face guard connector body member 85 has at least two channels 93, 94, disposed in a substantially parallel, substantially non-collinear relationship, each channel 93, 94 receiving a portion of the face guard 65. Preferably, face guard 65 on both of its sides includes a plurality of wire members having a substantial rectangular shaped opening, such as is formed by wire members 66a, 66b, 66c and 66d as shown in FIG. 8, with wire members 66b and 66d being received within channels 93, 94, respectively. Preferably, at least one of the channels 93, 94, is formed in the inner surface 91 of the face guard connector body member 85 and the wire member 66b, 66d is received within the at least one channel, whereby the wire member 66b, 66d, is disposed between the inner surface 91 of the face guard connector body member 85, and the outer wall surface 38 of shell 31. Preferably, as shown in FIGS. 3 and 8, both channels, 93, 94 are formed in the inner surface 91 of the face guard connector body member 85. Face guard connector body member 85, as well as face guard connector body member 85′, to be hereinafter described, may be made of any suitable material having the requisite strength and durability characteristic to function as part of a face guard connector, such as a thermoplastic material being preferred. An opening 95 may be formed in the face guard connector body member 85 to provide flexibility to body member 85 so that it can more readily conform to the outer contour of the shell 31.

With reference to FIGS. 15 and 17, it is seen that face guard body member 85′ is similar in design to that of body member 85. Body member 85′ differs from that of body member 85, in that body member 85′ includes an access passageway 96 formed in the outer surface 92′ of body member 85′. Access passageway 96 is aligned with an inflation port 97 disposed in shell 31, and is adapted to provide access to inflation port 97 and permit the shock absorbing liner, to be hereinafter described, to be inflated. Access passageway may be a semi-circular shaped notch 98 formed at one end of body member 85′.

Helmet 30 as seen in FIGS. 1 and 1A may be provided with conventional face guard clips 99, only one of which is illustrated in FIGS. 1 and 1A, which are used to secure the upper portion of face guard 65 to the front 41 of shell 31. The details of construction of face guard clips 99 are shown in FIGS. 5 and 6. Upon the removal of bolts 82 from face guard connectors 35 and the removal of face guard connector body members 85, 85′, face guard 65 may be rotated upwardly about face guard clips 99, in the event that it is necessary to gain access to the face of a player, or to better assist in removing the helmet 30 of a player. In this regard, no tools, other than a screw driver are necessary to remove bolts 82 and face guard connector body members 85, 85′. The frictional forces between bushing 77 and nut 86 restrain nut 86 from rotation while bolt 82 is being unthreaded therefrom.

Although the face guard connector 35 of the present invention has been described in particular with respect to its use with a football helmet 30, it should be noted that face guard connector 35 could, and in particular, its shock absorber member 67 could be utilized in connection with other types of protective helmets. For example, other types of helmets, with which a face guard of some type is used, include for example, lacrosse helmets, hockey helmets, and baseball batter's helmets, among others.

With reference to FIGS. 1 and 1A, each helmet includes a chin protector connector 34 for connecting a portion of a chin protector 100 to shell 31. Chin protector 100 may be of conventional design and has two sides 101, 102 and at least two flexible members 103, 104 associated with each side 101, 102 of the chin protector. Only flexible members 103, 104, associated with side 102 of chin protector 100 are illustrated. The at least two flexible members, or strap members, 103, 104 are adapted to engage with one of the chin protector connectors 34 on the sides 43, 44 of shell 31. Chin protector 100 may include a conventional chin cup 105 as is known in the art. Two embodiments of chin protector connectors 34, in accordance with the present invention, are shown in FIGS. 1 and 1A.

With respect to FIGS. 1A, 1B, 15, and 19, chin protector connector 34 includes at least two notches 107, 108 (FIG. 19) formed in the lower edge surface 42 of shell 31, with at least one notch being disposed on each side 43, 44 of the shell 31. As shown in FIGS. 1A. and 1B, at least one of the flexible members 103, 104 on each side of the chin protector 100 passes through at least one 107 of the notches 107, 108 on each side 43, 44 of the shell 31. Preferably, only one notch is formed in the shell 31 on each side 43, 44 of the shell; however, if desired, conditional notches could be formed on the sides of the shell. Preferably, notches 107, 108 are generally V-shaped notches; however, other shapes of notches, if desired, could be utilized. As shown in FIGS. 1A and 1B, flexible member, or flexible strap member 104 passes through notch 107. As is known in the art, chin protector 100 has upper and lower flexible members 103, 104, on each side, and the upper flexible members, or flexible strap members 103 are releaseably secured to the shell 31 as by a conventional snap connector, the male portion of the snap 109 (FIGS. 15 and 19), cooperating with a female snap connector 110 carried by a bracket 111 mounted on upper strap 103 (FIG. 1A).

Helmets 30 are each provided with an ear opening 112 in each ear flap 32, and the ear openings 112 are adapted to be disposed adjacent an ear 50 of the wearer 46 permit the transmission of sound to the wearer 46. Ear openings 112 may be provided with a generally rounded configuration, with ear openings 112 generally having a truncated triangular shaped configuration with an additional smaller opening 112′ being disposed rearwardly of the main ear opening 112. Preferably the notches 107, 108 are disposed in the lower edge surface 42 of the shell 31, and as seen in FIG. 19, and the notches 107, 108 are preferably disposed substantially, directly below the ear openings 112. As seen in FIGS. 1A and 1B, a first portion 115 of each lower flexible member 104 is disposed adjacent the inner wall surface 37 of shell 31, a second portion 116 of strap member 104 passes through notch 107, and a third portion 117 of the flexible member, or lower strap member 104 is disposed adjacent the outer wall surface 38 of shell 31. The third portion 117 of each lower strap member 104 is preferably releaseably secured to a portion of the chin protector connector 34 disposed on the outer wall surface 38 of shell 31. Preferably, strap 104 is releaseably secured by a male and female snap connector 109, 110, and bracket 111, as previously described. The foregoing described chin protector 100 is generally referred to as a 4 point hookup, or a "high hookup" chin protector, or chin strap, which is believed to provide better stability of the helmet 30 with respect to the wearer's head, particularly upon the player sustaining an impact force to helmet 30.

Because as previously described, the ear flaps 32 of the present invention are generally disposed to lie in a plane which is substantially parallel to the longitudinal axis 61 of the outer shell 31, the notches 107, 108 of chin protector connector 34 serve to provide improved stability of the lower chin straps, or flexible members 104, by preventing the lower strap 104 from being free to slide around the outer wall surface of ear flaps 32. The notches 107, 108 are believed to effectively "catch" the lower strap member 104 to prevent the free sliding of the lower chin strap 104. In general, if a helmet 30 is subjected to a downward impact force upon face mask 65, helmet 30 tends to roll forwardly around a virtual pivot point located slightly above the ear openings 112. This rolling effect is typically resisted by a force acting between the lower strap connectors 109, 110 and the chin 49 of the wearer of the helmet. The further away from the virtual pivot point the lower snap connection of lower chin strap 104 is located, the better the resistance of the helmet 30 to rolling. Notch 107 assists in resisting the undesired rolling effect by redirecting the strap's force line of action to a location farther away from the virtual pivot point.

With reference to FIGS. 1 and 2 and 7, another embodiment of the chin protector connector 34 of the present invention will be described. In this embodiment, chin protector connector 34, at least one slot 120 is formed in each side 43, 44 of shell 31, and at least one of the flexible members 103, 104, passes through the at least one slot 120. Preferably, the at least one slot 120 is formed in each side 43, 44 of shell 31, and the at least one slot 120 is disposed in each ear flap 32 of shell 31. Preferably, only one slot 120 is provided for each side of the shell 31. Additionally, the at least one slot 120 is preferably disposed forwardly of each ear opening 112 and is positioned between the front 41 of the shell and each ear opening 112. As shown in FIG. 7, slot 120 is tapered with respect to the inner and outer wall surfaces 37, 38 of the shell, whereby sharp edges are avoided which could damage flexible member or strap member, 104. Strap member 104 is also releaseably secured to shell 31 as by use by a female and male snap connector and bracket 109-111, as previously described. Upon releasing the lower snap connections associated with lower strap members 104, the chin protector 104 may be loosened with respect to the chin of the wearer of the helmet, whereby the wearer of the helmet may remove helmet 30 from his or her head. It is not necessary to disengage, or unsnap, the upper flexible strap members 103, in order to remove helmet 30.

Helmets 30 of the present invention preferably include a shock absorbing liner 125 associated by the liner connector with the inner wall surface 37 of shell 31. Preferably, the shock absorbing liner 125 is releaseably connected to the inner wall surface 37 of shell 31 by the liner connector. Preferably the liner connector includes a hook and loop fastener assembly, which is generally referred to as a VEELCRO.RTM. attachment, as by placing portions of the hook and loop assembly on the shock absorbing liner 125 and the inner wall surface 37 of the shell 31, as is known in the art.

As shown in FIGS. 14 and 16, shock absorbing liner 125 generally includes a plurality of resilient members 130 which are adapted to absorb shock forces exerted upon the shell 31, and the plurality of resilient members 130 are disposed along the inner wall surface 37 of the back 40 and sides 43, 44 of shell 31. The general construction of shock absorbing liner 125 is disclosed in U.S. Pat. No. 5,263,203, commonly assigned with the present application, and which patent is herein incorporated by reference. Shock absorbing liners 125, 125′ may each include an inflation valve 131 which would mate with an opening, or port, disposed in the rear 40 of the shell 31, whereby shock absorbing liners 125, 125′ could be inflated as desired. Shock absorbing liners 125, 125′ each include at least one resilient pad member 135 disposed upon the inner wall surface 136 of a portion of each of the jaw flap 33 of shell 31. Two embodiments of resilient pad members 135 are illustrated. The first embodiment of resilient pad member 135 is shown in FIGS. 1, 1A, 2, 8, 12, and 14. Another embodiment of resilient pad member 135 is illustrated in FIGS. 15 and 16. Although the at least one resilient pad member, or jaw pad, 135 could be formed integral with the plurality of resilient pad members 130 of shock absorbing liners 125, 125′, the resilient pad members 135 are preferably releaseably secured to the plurality of resilient members 130 forming shock absorbing liner 125. As seen in FIGS. 14 and 16 each of the shock absorbing liners 125, 125′ have first and second ends 140, 141, and the shock absorbing liners 125, 125′ have a connector member 145, 145′ disposed at each of the ends 140, 141. Each of the connector members 145, 145′ are adapted to connect to the shock absorbing liner 125, 125′ at least one of the resilient pad members 135 disposed upon the inner wall surface 136 of a portion of the jaw flap 33.

As shown in FIGS. 8 and 14, one embodiment of the at least one resilient pad member 135, may be jaw pad 150. Another embodiment of the at least one resilient pad member 135 may be seen in FIGS. 15 and 16 as jaw pad 150′. Each of the resilient pad members 135, or jaw pads 150, 150′ include at least one, and preferably three resilient pad members 151, 152, 153, in the case of the embodiment of jaw pad 150, and two resilient pad members 151′ and 152′ in the embodiment of resilient pad member 135, or jaw pad 150′ of FIG. 16. As previously described, each of the resilient pad members 135, or jaw pads 150, 150′, are releaseably secured to the resilient members 130 of the shock absorbing liners 125, 125′ by a connector member 145, 145′. Preferably the connector member 145, 145′ is a sling 160, 160′, that suspends at least at least one of the resilient pad members that comprise jaw pads 150, 150′. For example, as shown in FIGS. 1A, 8 and 14, resilient pad member 151 is suspended from sling 160. Similarly, as shown in FIGS. 15 and 16, resilient pad member 151′ of jaw pad 150′ is suspended from sling 160. Sling 160 has an opening 161 that receives the outer configuration, or periphery, of resilient pad member 151 therein, preferably in a closely conforming or mating, snug fitting relationship. Similarly, sling 160′ has an opening 161′ which receives the outer periphery of resilient pad member 151′ of jaw pad 150′, again in preferably a mating, snug fitting relationship. It should be noted that since each of the jaw pads 150, 150′ also include some hook and loop fastener material such as VELCRO®, 162, 163 (FIG. 8) and 162′, 163′ (FIG. 15), to releaseably secure jaw pads 150, 150′ to the inner wall surface 37 of shell 31, and preferably to the inner wall surface 136 of a portion of the jaw flap 33 of the shell 31, the mating relationship between the resilient pad members 151, 151′ with openings 161, 161′ is not required to be a snug, frictional relationship. It may rather be a loose fitting relationship for positioning purposes only, to position the jaw pads 150, 150′ in their desired location. With the hook and loop fastener material 162, 163 and 162′ and 163′ acting to releaseably secure the jaw pads 150, 150′.

With reference to FIGS. 12 and 14, when shock absorbing liner 125 is associated with the inner wall surface 37 of shell 31, including the at least one resilient pad member 135, or jaw pad 150 being associated with shock absorbing liner 125, an ear channel 170 is formed on each side of the shell 31 between at least one of the resilient members 130 of the shock absorbing liner 125 and at least one resilient pad member 135, or jaw pad 150. Each ear channel 170 is disposed adjacent the ear openings 112 formed in ear flaps 32. For example, with reference to FIGS. 12 and 14, ear channel 170 is formed and bounded by on one side, by resilient member 130a, and on the other side by resilient pad members 151 and 152. The upper end of ear channel 170, as illustrated, is bounded by resilient member 130b. Similarly, as seen in FIG. 16, ear channel 170 is bounded by resilient member 130a on one side, and by resilient pad members 151′ and 152′ on the other side. The top of the ear channel 170 may be bounded by resilient member 130b′. Each of the ear channels 170 preferably extends along an axis 171 which is disposed substantially parallel with the substantially vertical, longitudinal axis 61 of the shell 31 extending from the crown 39 of the shell 31 to the lower edge surface 42</