A crash helmet for sports, in particular cycling

A - Human Necessities – 42 – B

Patent

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Details

A42B 3/28 (2006.01)

Patent

CA 2331214

A crash helmet (1) for sports, such as cycling, in which, to optimise ventilation for the wearer and so minimise the effects of sweating, the crash helmet consists of a supporting cap (2), designed to be worn on the top of a person's head, and an outer cap (3), designed to fit on top of the supporting cap (2) and permanently connected to the latter; the supporting cap (2) has a plurality of first through holes (5-9) in channels which are opposite the inner surface of the outer cap (3); the front of the outer cap (3) has at least second through holes (18, 19, 20) which communicate with a channel in the supporting cap, and with a first hole (5-9) in the supporting cap; the rear zones of the caps (2, 3) together form, at the channels in the supporting cap, an equal number of matching passages (27, 28, 29) which communicate with a corresponding second hole (18, 19, 20) and are open at a rear zone of the crash helmet (1); thus between the supporting cap (2) and the outer cap (3), there is a system of channels with Venturi effect, communicating with the head of the crash helmet wearer.

L'invention concerne un casque antichoc (1) destiné à la pratique des sports, notamment du cyclisme. Afin que l'utilisateur soit le mieux aéré possible et ainsi que les effets de la transpiration soient minimisés, le casque comprend une coque support (2), conçue pour être portée sur le sommet de la tête de l'utilisateur, et une coque externe (3), conçue pour être fixée sur le dessus de la coque support (2) et reliée à cette dernière de manière permanente. La coque support (2) présente une pluralité de premiers trous traversants (5-9) disposés dans des canaux qui sont opposés à la surface interne de la coque externe (3). Le devant de la coque externe (3) présente au moins des seconds trous traversants (18, 19, 20), qui communiquent avec un canal et avec un premier trou (5-9) de la coque support. Les zones postérieures des coques (2, 3) forment ensemble, au niveau des canaux de la coque support, un nombre égal de conduits appariés (27, 28, 29), qui communiquent avec un second trou correspondant (18, 19, 20) et s'ouvrent dans la zone postérieure du casque (1). Entre la coque support (2) et la coque externe (3) se trouve donc un système de canaux à effet Venturi, qui communique avec la tête de l'utilisateur du casque.

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