EP0047712B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Shock attenuation system for headgear
Assignee: Scott Technologies Inc
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Filing: 1981-08-26
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Granted: 1984-10-31
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Expires: 2001-08-26
Abstract
Abstract A shock attenuation system for headgear having an outer protective shell, the system comprising a liner adapted to be secured to the internal surface of the shell, the liner comprising a series of tubes of elastomeric material extending with their axes generally parallel to the internal surface of the shell, and generally parallel to one another. Each tube is open at an end thereof and is elastically deformable under loads applied against the side of the tube, whereby, with the headgear worn by a wearer and upon application of an impact load to the headgear, the tubes in the area of impact deform elastically under the applied load and attenuate the shock upon the wearer from the applied load.
Inventors
- 👤 Hal D. Mitchell
- 👤 David C. Rust
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 22:58
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/10; A42B3/12; A42B3/124
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
170 words
A shock attenuation system for headgear (1) including a liner (7) comprising a series of open-ended tubes (15) disposed in generally parallel side-by-side relation, and means (25) for securing the liner (7) on the inside of a shell (3) of the headgear (1), the longitudinal axes of the tubes (15) being generally parallel to the internal surface of the shell (3), characterized in that said tubes (15) are made of elastomeric material so that they are elastically deformable under loads against the sides thereof, said tubes being so positioned with respect to one another that when one tube (15) deforms under a load it is engageable with the sides of adjacent tubes (15) for deforming them when the headgear (1) is worn by a wearer and subjected to an impact load, the sides of the tubes (15) in the area of impact deforming elastically under the load into engagement with the sides of adjacent tubes (15) and thereby deforming said adjacent tubes (15) for attenuating the shock upon the wearer.
Claim 2
Dependent Claim
170 words
A shock attenuation system for headgear (1) including a liner (7) comprising a series of open-ended tubes (15) disposed in generally parallel side-by-side relation, and means (25) for securing the liner (7) on the inside of a shell (3) of the headgear (1), the longitudinal axes of the tubes (15) being generally parallel to the internal surface of the shell (3), characterized in that said tubes (15) are made of elastomeric material so that they are elastically deformable under loads against the sides thereof, said tubes being so positioned with respect to one another that when one tube (15) deforms under a load it is engageable with the sides of adjacent tubes (15) for deforming them when the headgear (1) is worn by a wearer and subjected to an impact load, the sides of the tubes (15) in the area of impact deforming elastically under the load into engagement with the sides of adjacent tubes (15) and thereby deforming said adjacent tubes (15) for attenuating the shock upon the wearer.
Claim 3
Dependent Claim
27 words
Shock attenuation system according to claim 1 characterized in that the liner (7) further comprises an inner layer (17) of cushioning material engageable with the wearer's head.
Claim 4
Dependent Claim
25 words
Shock attenuation system according to claims 1 and 2, characterized in that adjacent tubes (15) of the liner (7) are joined together at their sides.
Claim 5
Dependent Claim
29 words
Shock attenuation system according to claims 1 and 2 characterized in that the tubes (15) are laced together by lacing (31) extending through the sides of the tubes (15).
Claim 6
Dependent Claim
28 words
Shock attenuation system according to claim 1, characterized in that the liner (7) further comprises a carrier sheet (37), said tubes (15) being joined to said sheet (37).
Claim 7
Dependent Claim
30 words
Shock attenuation system according to claim 1 characterized in that the liner (45) further comprises means (47, 49) forming pockets (51) at spaced intervals adapted to receive said tubes (15).
Claim 8
Dependent Claim
24 words
Shock attenuation system according to claim 1, characterized in that the sides of the adjacent tubes (15) of the liner (7) are spaced apart.
Claim 9
Dependent Claim
28 words
Shock attenuation system according to claim 1 characterized in that with the liner (7) secured in the shell (3) the axis of each tube (15) extends generally vertically.
Claim 10
Dependent Claim
26 words
Shock attenuation system according to claim 1, characterized in that the liner (7) is engageable with and conformable to the internal surface of the shell (3).
Claim 11
Dependent Claim
56 words
A shock attenuation system according to claim 1 characterized in that said tubes (15) are adapted for communication with the interior of the headgear (1) whereby when the tubes (15) are deformed during an impact air is adapted to flow out of the tubes (15) and into the interior of the shell for ventilating the headgear.
Claim 12
Dependent Claim
35 words
A shock attenuation system according to claim 1 characterized in further comprising a plurality of pads (19) of cushioning material detachably secured to the tubes (15) on the inside thereof for engagement with the head.
References Cited (Backward Citations)
No citation records indexed.
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