Cyclist helmet with reinforcing hoops

A - Human Necessities – 42 – B

Patent

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Details

A42B 3/00 (2006.01) A42B 3/06 (2006.01) A42B 3/12 (2006.01) A42B 3/28 (2006.01)

Patent

CA 2356721

A bicycle helmet that allows ventilation to a cyclist head. The helmet comprises a hard internal shell, a hard external shell, and a shock absorbing foam insert located between the internal and external shells. The helmet consists of a generally open concave structure having a number of fore and aft extending structural arms, transversely spaced from one another and merging with an annular bottom edge rim at both their fore and aft ends. Each structural arm forms a U-shape in cross-section, for reinforcing the helmet structure. The shock absorbing foam of the insert engages with the grooves formed by these cross-sectionally U-shape structural arms. Air ventilation passages are formed in between each pair of successive U arms, extending through corresponding openings in the shock absorbing insert and through the open mouth formed by the annular internal shell. The radius of curvature of the structural arms is greater than that of the shock absorbing insert.

Un casque de bicyclette qui permet une aération pour la tête d'un cycliste. Le casque comprend une enveloppe interne dure, une enveloppe externe dure, et un insert en mousse absorbant les chocs situé entre les enveloppes interne et externe. Le casque est constitué d'une structure concave généralement ouverte ayant un certain nombre de bras structurels s'étendant vers l'avant et l'arrière, transversalement espacés l'un de l'autre et fusionnant avec un bord annulaire de fond au niveau de leurs extrémités avant et arrière. Chaque bras structurel forme un U en section transversale pour renforcer la structure de casque. La mousse d'absorption de chocs de l'insert entre en prise avec les rainures formées par ces bras structurels en forme de U transversal. Des passages de ventilation d'air sont formés entre chaque paire de bras en U successifs, s'étendant à travers les ouvertures correspondantes dans l'insert absorbant les chocs et à travers l'ouverture formée par l'enveloppe interne annulaire. Le rayon de courbure des bras structurels est supérieur à celui de l'insert absorbant les chocs.

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