N/A
The invention relates to a buckle for a chin strap for a protective helmet, namely for contact sports. The buckle includes first and second side rails that offer greater structural rigidity to resist bending and flattening of the buckle over time.
Helmets for contact sports, such as those used in football, hockey and lacrosse, typically include a shell, a faceguard or face mask, and a chin protector or strap that removably secures the helmet on the wearer's head. The chin strap typically contains a plurality of buckles that interact with fasteners, such as snaps, affixed to the shell. The buckles and snaps allow the chin strap to be easily disengaged from the helmet to allow the user to remove the helmet.
One existing buckle 10, as shown in
Thus, the need exists for a buckle for a chin strap that resists bending over time to increase the life of the buckle.
According to one embodiment, a buckle for protective sports helmet chin strap comprises a body portion, an attachment portion, a first side rail, and a second side rail. The body portion has a first strap opening and a second strap opening formed therethrough. The body portion has a first end and a second end. The attachment portion is adapted to interact with a fastener on the helmet. The first rail extends between the first end to the second end of the body portion, and has a generally arcuate shape. The second rail runs from the first end to the second end of the body portion, and has a generally arcuate shape. The second rail is positioned on an opposite side of the body portion as the first rail.
Other features and advantages of the invention will be apparent from the following specification taken in conjunction with the following drawings.
To understand the present invention, it will now be described by way of example, with reference to the accompanying drawings in which:
While this invention is susceptible of embodiments in many different forms, there is shown in the drawings and will herein be described in detail preferred embodiments of the invention with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the broad aspect of the invention to the embodiments illustrated.
As may be best observed in
As shown in
A first side rail 30 and a second side rail 32 extend longitudinally between a first end 20a to a second end 20b of the buckle 20 and along the periphery of the buckle 20. The first and second rails 30, 32 and the first and second end segments 25, 27 define the periphery of the buckle 20. The first and second side rails 30, 32 have a thickness of 1.0 to 1.5 mm, and preferably 1.25 to 1.30 mm. The first rail 30 and the second rail 32 generally have a convex arcuate shape, as best seen in
In addition to having a generally convex arcuate shape along a longitudinal axis of the buckle 20, the first rail 30 and the second rail 32 are generally inclined in a transverse direction, having a lower elevation at the inner portion of the rails 30, 32 (nearer the rivet 29), and a higher elevation at the outer portion of the rails 30, 32, as shown in
The generally convex arcuate shape of the rails 30, 32 helps resist bending of the buckle 20 along the transverse axis that may result in flattening of the buckle 20. The presence of the rails 30, 32, along with the arcuate geometry of the rails 30, 32, imparts much greater structural strength to the buckle 20 compared to prior buckles. Further, the buckle 20 may be utilized for a longer period of time without being replaced if it retains its original shape, thus reducing the cost associated with frequently replacing the buckle 20. In addition to resisting the flattening of the buckle 20 about the transverse axis, the incline of the first rail 30 and the second rail 32 also helps the buckle 20 resist bending of the rails 30, 32 about the longitudinal axis. Thus, prior to the buckle 20 bending, forces applied to the buckle 20 would need to be sufficient to flatten the rails 30, 32 about the longitudinal axis, thus removing the incline of the rails 30, 32, and the forces would further have to be sufficient to cause bending about the transverse axis to remove the convex arcuate shape of the rails 30, 32.
In one embodiment, a first lateral hole 34 and a second lateral hole 36 are formed between the body portion 22 and the rails 30, 32. The first and second lateral holes 34, 36 reduce the weight of the buckle 20 by removing material. The first and second lateral holes 34, 36 have an substantially linear outer edge and a curvilinear inner edge. The first and second lateral holes 34, 36 have an approximate width HW that may be between 2.5 to 4.5 millimeters, and is most preferably 3.5 millimeters. Similarly, the first and second lateral through holes 34, 36 have a length HL that may be between 8 to 14 millimeters, and is most preferably 10 millimeters. Referring to
The chin strap buckle 20 preferably has an overall length L, which is the distance between the first and second ends 20a, 20b, of 24 to 28 millimeters, and most preferably an overall length L of 26 millimeters. The chin strap buckle 20 preferably has a overall width W, which is the distance from the outermost point of the first rail 30 to the outermost point of the second rail 32, of 20 to 24 millimeters, and most preferably an overall width W of 22 millimeters. Further, the chin strap buckle 20 preferably has an overall height H of 7.75 to 8.15 millimeters, and most preferably an overall height H of 8.05 millimeters.
It is contemplated that a number of materials, including plastic or metallic materials, may be utilized for manufacturing the buckle 20. For example, the body portion 22 and the attachment portion 28 would be manufactured from stainless steel, preferably 302 stainless steel. It is further contemplated that the attachment portion 28 and the body portion 22 may comprise different materials, such as stainless steel being utilized on the body portion 22 and plastic being used for at least a portion of the attachment portion 28. It is further contemplated that brass may be used in place of the stainless steel materials as described above.
While the specific embodiments have been illustrated and described, numerous modifications come to mind without significantly departing from the spirit of the invention, and the scope of protection is only limited by the scope of the accompanying claims.
This application claims priority from and the benefit of U.S. Provisional Application No. 61/196,126, filed Oct. 15, 2008, which is incorporated herein by reference and made a part hereof.
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Number | Date | Country | |
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20100192286 A1 | Aug 2010 | US |
Number | Date | Country | |
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61196126 | Oct 2008 | US |