Spine board

Details Spine board Spine board

A - Human Necessities

61

G

A61G 1/00 (2006.01) A61G 1/01 (2006.01) B29C 41/04 (2006.01) B29C 44/18 (2006.01) A61G 1/048 (2006.01)

Patent

CA 2224888

A spine board having internal stiffening elements mechanically connected to an outer shell via a number of speed pins. A quantity of urethane foam fills the spaces between the stiffening elements and the shell. The speed pins permit the rotational molding of the shell about a pair of graphite reinforcing tubes, which better distributes the loads to be born among the outer shell, urethane filler, and stiffening elements, thereby increasing the life span of the board.

Cette invention concerne une planche dorsale à éléments raidisseurs internes raccordés mécaniquement à une coquille extérieure au moyen d'un certain nombre de chevilles d'assemblage rapide. Une certaine quantité de mousse uréthanne est injectée pour combler l'espace entre les raidisseurs et la coquille. Les chevilles d'assemblage rapide permettent le rotomoulage de la coquille autour d'une paire de tubes de renfort en graphite qui assurent une meilleure répartition des sollicitations entre la coquille, le remplissage d'uréthanne et les éléments raidisseurs et, partant, allongent la durée de vie de la planche dorsale objet de l'invention.

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