Safety ratchet mechanism

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/28 (2006.01) B25B 7/14 (2006.01)

Patent

CA 2416340

A hand tool having first and second handle portions and a toothed bar (30; 130) that has first and second terminal ends, a pluralit of teeth (42; 117; 119) having free ends, and at least one shield member (44; 48; 115; 144; 148) adjacent the teeth (42; 117; 119) and having at least a portion which extends beyond the free ends of the teeth (42; 117; 119), wherein the toothed bar (30; 130) is pivotally attached at its first terminal end to a first handle portion and the teeth (42; 117; 119) of the toothed bar (30; 130) engage with a pawl associated with the second handle.

L'invention concerne un outil à main comprenant une première et une seconde partie de poignée ainsi qu'une crémaillère (30, 130) dotée d'une première et d'une seconde extrémité terminale, d'une pluralité de dents (42, 117, 119) à extrémités libres et d'au moins un élément de protection (44, 48, 115, 144, 148) situé au voisinage des dents (42, 117, 119) et comportant au moins une partie se prolongeant au-delà des extrémités libres de ces dents (42, 117, 119). La crémaillère (30, 130) est fixée pivotante au niveau de sa première extrémité proximale à une première partie de poignée, les dents (42, 117, 119) de cette crémaillère (30, 130) entrant en prise avec un cliquet associé à la seconde partie de poignée.

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