Helmet Retention System
A helmet retention system having a first side strap system configured to connect to a first side of a helmet and a second side strap system configured to connect to an opposite second side of a helmet is provided. A chin cup and a chin cup connecting mechanism are provided. The chin cup connecting mechanism is configured to connect the first and second side strap systems in an area about the user's chin and to vary the amount of tension in the system between at least two predefined tension states. Strap adjusters provide a cam design for tensioning the straps and retaining the adjustors fixed to the straps at the desired adjustment under external force applied to the straps. Anchors provide secure mounting of the straps to the helmet.
This application claims the benefit of U.S. Provisional Application Ser. No. 61/498,920 filed Jun. 20, 2011.
TECHNICAL FIELD OF THE INVENTIONThe present invention relates to systems for retaining a helmet to a user's head.
BACKGROUND OF THE INVENTIONA number of protective and military helmets are known, such as the helmet known as the Advanced Combat Helmet (ACH), which was a successor to the Personnel Armor System Ground Troops (PASGT) such as shown in U.S. Pat. No. Des. 242,088. Helmet strap systems for holding a helmet to a user's head are also known, such as disclosed in U.S. Pat. Nos. 7,600,268, 5,123,121, 4,897,888 and US Patent Application Publication 2006/0179537 A1.
The present inventors recognize that it would be desirable to provide a strap system with a geometric configuration that reduces the degree of front-to-back helmet rotation that is allowed by the system.
The present inventors recognize that it would be desirable to provide a strap system with a geometric configuration that reduces the circumstances were a strap could cut up under a user's earlobe or interfere with a circum-aural ear protection or communication device.
One solution for fastening a chinstrap requires putting the closure mechanism on top of the side straps of the system which results in bulky hardware on the face, interference with weapons sighting, and the need for left and right eye-dominant configurations. The present inventors recognize that it would be desirable to eliminate the bulky hardware, weapon interference, eye-dominant configuration requirements in a helmet retention system.
The present inventors recognize that it would be desirable to eliminate the need to adjust the length of straps in the system every time the chin strap is connected rather than at the first fitting.
The present inventors recognize the need for a low profile chin strap closure mechanism.
The present inventors recognize a need for a chin strap closure mechanism that is capable of operation by one hand.
SUMMARY OF THE INVENTIONAn exemplary embodiment of the invention provides a helmet retention system having a first side strap system configured to connect to a first side of a helmet and a second side strap system configured to connect to an opposite second side of a helmet. A chin cup and a chin cup connecting mechanism are provided. The chin cup connecting mechanism is configured to connect the first and second side strap systems in an area about the user's chin and to vary the amount of tension in the system between at least two predefined tension states.
In one embodiment, the chin cup connecting mechanism has at least one loop, a plurality of anchor pins, a key-hole strip having a least two openings each configured to engage one or more anchor pins. The selection of the engagement of one or more openings with one or more anchor pins determines, at least in part, the tension state of the system.
In one embodiment, the chin cup comprises an upper strap portion, a first lower strap portion, and a second lower strap portion. The upper strap portion and first lower strap portion are configured to encircle a user's chin in at least one tension state. The key-hole strip is connected to the second lower strap portion.
In one embodiment, the chin cup connecting mechanism comprising at least two loops for connecting opposite sides of the chin cup to the first and second side strap systems.
In one embodiment, the first loop is connected between the upper strap portion and the first lower strap portion and the second loop configured to be located between the second lower strap portion and the first lower strap portion for at least one tension state of the system.
In one embodiment, the first side strap system comprises a first upper front strap portion configured to connect to a front portion of a helmet on a first side and a first lower side strap portion configured to extend to a rear area of a helmet on the first side. The second side strap system comprises a second upper front strap portion configured to connect to a front portion of a helmet on a second side and a second lower side strap portion configured to extend to a rear area of a helmet on the second side.
In one embodiment, the system has a nape pad configured to prevent contact of the straps of the system with portions of the back of a user's neck.
In one embodiment, the system has at least four strap anchors configured to secure opposite ends of the first and second side strap system to a helmet.
In one embodiment, the system has a least one tensioner configured to vary the length of a portion of the first or second side strap systems within a predefined range.
The tensioner has a base and a tension cam. The tension cam is pivotally connected to the base. The base has a crossbar for connecting to a first strap end of the first or second side strap systems; the base has a toothed section ahead of the tension cam opposite the crossbar. The tensioner has an open position and a closed position, the tension cam is configured to create a tortuous path where the strap can engage the teeth under tension when in the closed position.
Numerous other advantages and features of the present invention will become readily apparent from the following detailed description of the invention and the embodiments thereof, and from the accompanying drawings.
While this invention is susceptible of embodiment in many different forms, there are shown in the drawings, and will be described herein in detail, specific embodiments thereof 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 invention to the specific embodiments illustrated.
A helmet retention system 100, 101 is disclosed. The system has strap segments 150, 152, 154, 156, 158, 160, 162, 168, 170, 172 connected by rings, such as D-rings 130, 132, or strap adjusters or strap tensioners 120, 122, 124, 126, 128. The D-rings 130, 132 are connected to a neck or nape pad 102 and connected to each other by strap segments 168, 170, and tensioner 124. End strap segments 150, 152, 154, 156, which are a subset of the segments, are connected at one end to an anchor 110, 112, 114, 116 for securing the system to a helmet. The combination of strap segments 168 and 170 may be one continuous piece of strap material. A first end of the combination of segments 168 and 170 has a first loop connected around the crossbar of tensioner 124, the continuous strap extends around D-ring 130 and through the tensioner and has a second loop at a second end opposite the first end that is connected around a portion of D-ring 132. By using the tensioner 124, the overall length of the strap segments 168, 170 can be adjusted and the distance between the D-rings 130, 132 can be adjusted.
In one embodiment, the system has a retaining strap 105 to secure the D-rings to the nape pad. A first end of the retaining strap 105 is secured at or adjacent to a first end 102a of the nape pad 102. A second end of the retaining strap opposite the first end is secured at or adjacent a second end 102b of the nape pad. The retaining strap extends through each of the D-rings 130, 132. As shown in
The system includes a first lower side strap portion 151 and an opposite second lower side strap portion 161. The system includes a first upper front strap portion 157 and an opposite second upper front strap portion 167. The first lower side strap portion 151 comprises strap segments 160, 162. The second lower side strap portion 161 comprises strap segments 164, 172. The first upper front strap portion 157 comprises strap segments 156, 158. The second upper front strap portion 167 comprises strap segments 150, 166. The rear strap portion 169 comprises strap segments 168, 170.
The system comprises a first side strap system 155 and a second side strap system 165. The first side strap system comprises segments 154, 156, 158, 160, 162. The second side strap system comprises strap segments 150, 152, 166, 164, 172. The system also comprises first and second chin cup-engaging strap portions 153, 163. The first chin cup engaging strap portion 153 comprises strap portions 151, 157. The second chin cup engaging strap portion 163 comprises strap portions 161, 167. In one embodiment, the strap portions 151 and 157 comprise a continuous piece of strap material. A first chin cup connecting loop 142 defines the boundary between strap portion 151 and strap portion 157. The loop 142 is positionable along the overall length of first chin cup engaging strap portion 153 as the system is adjusted using tensioners 126, 128. Likewise, a second chin cup-connecting loop 140 defines the boundary between strap portion 161 and strap portion 167. The loop 140 is positionable along the overall length of first chin cup engaging strap portion 153 as the system is adjusted using tensioners 120, 122.
In one embodiment, each of the first and second chin cup engaging portions comprises one continuous piece of strap material. In this arrangement, a first end of a first continuous piece of material of the first chin cup engaging portion forms a first loop around the cross bar of tensioner 126. The strap then continues around the D-ring 132, extends through tensioner 126, extends through loop 142, extends through tensioner 128, loops through anchor 116 and a second end opposite the first end of the first continuous piece of material forms a second loop around the cross bar of tensioner 128.
A first end of a second continuous piece of material of the second chin cup engaging portion forms a first loop around the cross bar of tensioner 122 continues around the D-ring 130, extends through tensioner 122, extends through loop 140, extends through tensioner 120, loops through anchor 110 and a second end opposite the first end of the second continuous piece of material forms a second loop around the cross bar of tensioner 120.
As shown in
The system 100 has a chin cup 181 for engaging on or about a user's chin as shown in
Referring to
Referring to
As shown in
The strip body 261 comprises an upper arched area 253, 257 and a corresponding lower arched area 251 (not shown for pin 250). The arched areas have a common center with the center of the pin heads 252, 256. The pin heads 252, 256 have a greater radius than the radius of the arched areas. The pin strip may be secured to the first lower chin strap portion 182 via stitching, adhesive, or by securing fasteners through the elongated slot openings 260, 262, 264, 266, or other means known in the fastening art.
In one configuration, the first pin 250 is configured to engage with the first keyhole opening 220 of the keyhole strip, and the second pin 256 is configured to engage with the second keyhole opening 230 of the keyhole strip. In one embodiment, the strip body 261 has an arc that is configured to approximate the under chin contact of a user and provide a comfortable contact therebetween. The keyhole strip has an arch that is substantially similar to the arch of the strip body 261 to provide a conforming contact between the keyhole strip and the strip body when the pins 250, 256 are engaged in the keyhole openings 220, 230 respectively.
Referring to
In
Each connecting loop 140, 142 has parallel arm portions 140a, 140b connected at each end to end segments to form the loop, as shown in
The system has at least two tension settings as shown in
A relaxed tension setting is shown in
The system provides a strap link adjustability mechanism where the length of any one of the strap portions 151, 157, 161, 167, 169 may vary within a predefined range by the use of tensioners 120, 122, 124, 126, 128. Each of tensioners 120, 122, 124, 126, 128 is identical to the others, therefore only one tensioner will be described in detail. Each tensioner has an open position in a locked position. The open position as shown in
Each tensioner has a base 300. The base has opposing base side walls 304, 306 joined by a crossbar 302 and a front bar such as a tooth bar 308. The outward facing surface of the side walls each have a series of parallel vertical grip bars 316 to aid a user's grip for sliding or adjusting the location of the tensioner. Adjacent to the grip bars 316 are pivot lever mounting holes 320, 322 for connecting with a pivot lever 330. The tooth bar 308 is located at the front of the base 300. The tooth bar 308 has a front surface 309 opposite a back surface. The back surface of the tooth bar has a plurality of teeth 310 extending rearward towards the crossbar 302. The tooth bar has an upper surface that is recessed below the highest surface of the side walls as shown in
The pivot lever 330 is shown in
Each of the lever sidewalls 341, 343 of the lever include locking nubs 332, 337. Each of the inside surfaces of the sidewalls 306, 304 of the base 300 have locking nub recesses 303 (not shown for sidewall 306). The locking nub recess 303 may be located so that when the lever is in a closed position, the top surface of the lever is parallel with the top surface of the sidewalls of the base portion. In another embodiment, locking recess may be located so that when the lever is in a closed position, the top surface of the lever is above or below the top surface of the side walls of the base portion. The locking nub has a snapped engagement with the locking recess to ensure proper closure and prevent accidental release.
The location of the base engaging pins 336, 338 and the shape of the front of the lever, including the first bottom sloping section 350, a front edge 351 in the first sloping upper front surface portion 348, forms a cam end 353. As shown in
As shown in
Referring to
The cam end has an over-center design such that the cam end 353 is urged to rotate when subjected to strap tension. Strap 162 extends around the cam end 353 that is radially spaced from the pivot axis at the base engaging pins 336,338 wherein pivoting of the lever from an open position to the locked or tensioning position pulls the strap about the cam tending to shorten the effective length of strap via the tortuous path that has a longer length, as compared to the open path when in the open position, and produces a tension in the strap. If the strap 162 is further drawn in the direction D shown in
In operation, to extend the strap's effective length, strap 162 is moved in the direction C shown in
As is shown in
The D-ring 130, 132 is shown in
Each of the anchors 110, 112, 114, 116 is identical. An anchor system 400 is shown in
The strap connecting portion 452 includes a strap opening 422 adjacent to a strap bar 420. The strap connecting portion 452 is angled away from or setoff from the plane defined by the helmet mounting portion 428 to prevent the strap from pinching against a helmet mounting surface. In one embodiment, the set off is 3 mm. The anchor may include an oblong center opening 424 for reducing the weight of anchor.
As shown in
From the foregoing, it will be observed that numerous variations and modifications may be effected without departing from the spirit and scope of the invention. It is to be understood that no limitation with respect to the specific apparatus illustrated herein is intended or should be inferred.
Claims
1. A helmet retention system, comprising:
- a first side strap system configured to connect to a first side of a helmet;
- a second side strap system configured to connect to an opposite second side of a helmet a chin cup; and
- a chin cup connecting mechanism configured to connect the first and second side strap systems in an area about the user's chin, and to vary the amount of tension in the system between at least two predefined tension states.
2. The helmet retention system of claim 1, wherein the chin cup connecting mechanism comprises at least one loop, a plurality of anchor pins, a key-hole strip having a least two openings each configured to engage one or more anchor pins, wherein the selection of the engagement of one or more openings with one or more anchor pins determines, at least in part, the tension state of the system.
3. The helmet retention system of claim 2, wherein the chin cup comprises an upper strap portion, a first lower strap portion, and a second lower strap portion, the upper strap portion and first lower strap portion configured to encircle a user's chin in at least one tension state, the key-hole strip connected to the second lower strap portion.
4. The helmet retention system of claim 1, wherein the chin cup comprises a chin cup connecting mechanism, wherein the chin cup connecting mechanism comprising at least two loops for connecting opposite sides of the chin cup to the first and second side strap systems.
5. The helmet retention system of claim 4, wherein a first loop of said at least two loops is connected between the upper strap portion and the first lower strap portion, and a second loop of said at least two loops configured to be located between the second lower strap portion and the first lower strap portion for at least one tension state of the system.
6. The helmet system of claim 1, wherein the first side strap system comprises a first upper front strap portion configured to connect to a front portion of a helmet on a first side and a first lower side strap portion configured to extend to a rear area of a helmet on the first side; and
- the second side strap system comprises a second upper front strap portion configured to connect to a front portion of a helmet on a second side and a second lower side strap portion configured to extend to a rear area of a helmet on the second side.
7. (canceled)
8. (canceled)
9. (canceled)
10. The helmet system of claim 1, comprising at least one tensioner configured to vary the length of a portion of the first or second side strap systems within a predefined range.
11. The helmet system of claim 10, wherein the at least one tensioner comprises a base and a tension cam.
12. The helmet system of claim 10, wherein the tensioner comprises a base and a tension cam pivotally connected to the base, the base has a crossbar for connecting to a first strap end of the first or second side strap systems, the base has a toothed section ahead of the tension cam opposite the crossbar.
13. The helmet system of claim 12, wherein the tensioner has an open position and a closed position, the tension cam is configured to create a tortuous path where the strap will engage the teeth under tension when in the closed position.
14. A strap adjuster comprising:
- a base having opposing base side walls joined by a crossbar and a front bar, the crossbar spaced apart and parallel to the front bar;
- a pivot lever pivotally connected to the side walls about a pivot axis, having an open position and a closed position with respect to the base depending on the pivoted position of the pivot lever, the pivot lever having a front edge, wherein when the pivot lever is in the closed position a tortuous path for a strap is formed between the base side walls and extending above the crossbar, below the front edge of the pivot lever tooth bar, and above the front bar, the pivot lever having an over-center design such that when the pivot lever is pivoted into the closed position, increasing strap tension acts to exert a moment on the lever about the pivot axis that is directed to urge the lever to pivot toward the closed position with respect to the base.
15. The strap adjuster according to claim 14, wherein the pivot lever comprises a cam end, formed by the front edge, a first sloping upper front surface continuing on the top side to a second upper sloping surface, wherein when the lever is in the open position and is rotated into the closed position, the cam end exerts a tensioning force on a strap that is threaded between the base side walls, over the crossbar under the cam end and over the front bar, until the pivot lever reaches the closed position.
16. The strap adjuster according to claim 14, wherein the front bar has a front surface opposite a back surface, the back surface of the front bar having a plurality of teeth extending rearward towards the crossbar.
17. (canceled)
18. (canceled)
19. (canceled)
20. (canceled)
21. The strap adjuster according to claim 14, wherein the pivot lever comprise opposite lever sidewalls and each of the lever sidewalls include a locking nub, and wherein each inside surface of the base side walls have locking nub recesses, the locking nub recess located such that the locking nubs have a snap engagement with the locking recess when the pivot lever is rotated into the closed position.
22. (canceled)
23. (canceled)
24. (canceled)
25. (canceled)
26. (canceled)
27. (canceled)
28. (canceled)
29. (canceled)
30. (canceled)
31. A helmet retention system, comprising:
- a first lower side strap portion and an opposite second lower side strap portion;
- a first upper front strap portion connected at one end at an angle to the first lower side strap portion and connectable to a helmet at an opposite end, and an opposite second upper front strap portion connected at one end at an angle to the second lower side strap portion and connectable to the helmet at an opposite end;
- a first loop connected to the first upper front strap portion at the connection between the first upper front strap portion and the first lower side strap portion;
- a second loop connected to the second upper front strap portion at the connection between the second upper front strap portion and the second lower side strap portion;
- the first lower side strap portion connected to a first ring and the second lower side strap portion connected to a second ring; and
- a first rear upper strap portion connected at one end to the first ring and connectable at an opposite end to the helmet, and a second rear upper strap portion connected to the second ring at a first end and connectable at an opposite end to the helmet; and
- a chin cup connected between the first and second loops.
32. The helmet retention system according to claim 31, comprising a plurality of strap adjusters each for adjusting strap length and one of each arranged respectively on the first lower side strap portion and the opposite second lower side strap portion.
33. The helmet retention system according to claim 31, comprising a plurality of strap adjusters each for adjusting strap length and one of each arranged respectively on the first upper front strap portion and the opposite second upper front strap portion.
34. The helmet retention system according to claim 31, comprising a nape pad and a restraining strap, wherein a first end of the retaining strap is secured at or adjacent to a first end of the nape pad, a second end of the retaining strap opposite the first end is secured at or adjacent a second end of the nape pad, wherein the retaining strap extends through each of the rings.
35. An anchor system for connecting straps to a helmet, comprising:
- an anchor;
- a screw receiver; and
- a screw, the anchor including a helmet mounting portion and a strap connecting portion, the helmet mounting portion including a mounting hole, the back surface of the helmet mounting portion including a shaped recess open into the mounting hole, the screw receiver including a shaft portion and a shaped plate portion, the screw receiver includes a threaded bore that extends through the shaft portion and the shaped plate portion, the threaded bore configured to receive the screw for attaching the anchor to a helmet, the shaped plate portion is sized to fit in the shaped recess, wherein the shape of the shaped plate portion and the shape of the shaped recess prevent substantial rotation of the screw receiver with respect to the helmet mounting portion; and
- the strap connecting portion includes a strap opening adjacent to a strap bar for connecting a strap.
36. The anchor system according to claim 35, wherein the strap connecting portion is angled off from the helmet mounting portion.
Type: Application
Filed: Jun 19, 2012
Publication Date: Jan 3, 2013
Inventors: Edward Robert Hall (Montreal), Michael James McGinn (Montreal), Curtis Herman (Montreal)
Application Number: 13/526,937
International Classification: A42B 3/08 (20060101); A42B 3/04 (20060101);