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EP0474939A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Helmet

Assignee: Shoei Co Ltd
•
Filing: 1990-12-10
•
Granted: —
•
Expires: 2010-12-10
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Abstract

Abstract A jet type helmet comprising a shield plate (19) supported to opposite sidewalls of a cap body (1) for opening or closing a window (18), and an air intake hole (8) provided at a front wall of the cap body (1) above the window (18) for introducing the air from forward into the cap body (1) when the shield plate (19) is disposed at its closed position, wherein said helmet further comprises a diffuser (37) disposed at the edge portion of said window (18) and opened toward an inner surface of said shield plate (19) in its closed position to be communicated with the air intake hole (8). When when a wearer of the helmet is slouched at the time of travelling, a fog on the inner surface of the shield plate (19) can be eliminated by introducing an air flow.

Inventors

  • 👤 Eitaro Kamata

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-01 05:41
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/28; A42B3/281; A42B3/10

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 108 words
A jet type helmet comprising a shield plate (19) supported to opposite sidewalls of a cap body (1) for opening or closing a window (18), and an air intake hole (8) provided at a front wall of the cap body (1) above the window (18) for introducing the air from forward into the cap body (1) when the shield plate (19) is disposed at its closed position, wherein said helmet further comprises a diffuser (37) disposed at the edge portion of said window (18) and opened toward an inner surface of said shield plate (19) in its closed position to be communicated with the air intake hole (8).
Claim 2
Dependent Claim 108 words
A jet type helmet comprising a shield plate (19) supported to opposite sidewalls of a cap body (1) for opening or closing a window (18), and an air intake hole (8) provided at a front wall of the cap body (1) above the window (18) for introducing the air from forward into the cap body (1) when the shield plate (19) is disposed at its closed position, wherein said helmet further comprises a diffuser (37) disposed at the edge portion of said window (18) and opened toward an inner surface of said shield plate (19) in its closed position to be communicated with the air intake hole (8).
Claim 3
Dependent Claim 39 words
A jet type helmet according to claim 1, wherein said diffuser (37) is formed at a mounting plate (29) engaged with an inner pad (24) disposed in said cap body (1) at the edge portion of said window (18).
Claim 4
Dependent Claim 70 words
A jet type helmet according to claim 2, wherein said mounting plate (29) is formed with a box-shaped protrusion (36) protruded downwardly from the edge portion of said window (18) to increase its protruded amount toward a forward direction of the helmet to communicate the interior of said protrusion (36) with said air intake hole (8), and said diffuser (37) is opened at the front end of said protrusion (36).
Claim 5
Dependent Claim 137 words
A jet type helmet according to claim 3, wherein said cap body (1) further comprises a ventilation groove (6a,40,6b) longitudinally extending in the inner surface of said cap body (1) along the inner surface thereof with a leading end of said ventilation groove (6a,40,6b) reaching the edge portion of said window (18), and a vent hole (7) opened in the front surface of said ventilation groove (6a,40,6b) to communicate with said air intake hole (8), the open surface of said ventilation groove (6a,40,6b) is closed by a cover plate (23) superposed on the inner surface of said cap body (1) along the upper edge of the window (18) to prevent said inner pad (24) from entering the ventilation groove (6a,40,6b), and the front end of said ventilation groove (6a,40,6b) communicates with the interior of said protrusion (36).

References Cited (Backward Citations)

DE508419C Cited
US4115874A Cited
US4519099A Cited
US4612675A Cited
EP0261299A1 Cited
US4833735A Cited

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