Ratchet type ring spanner

B - Operations – Transporting – 25 – B

Patent

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Details

B25B 13/46 (2006.01)

Patent

CA 2293796

A ratchet-type ring spanner includes a handle (11) and a head portion (10) which, in turn, includes a circular peripheral wall (l0a) defining a receiving compartment (12) and including a web area (10b) which connects with the handle (11), a cavity (13) being defined in the web area (10b). A ratchet wheel (20) is received in the compartment (12) and includes a plurality of teeth (21) in its outer periphery and a polygonal inner periphery. A pawl (14) is mounted in the cavity (13) and includes a plurality of teeth (142) defined on a first side for engaging with the teeth (21) of the ratchet wheel (20) and a second side bearing against a wall defining the cavity (13). A stop member (15) is mounted in the cavity (13) and includes a first end thereof bearing against the wall defining the cavity (13). A spring (16) is mounted between the stop member (15) and the toothed member to bias the toothed member away from the stop member (15).

Une clé fermée à rochet comprend un manche (11) et une partie tête qui comporte une paroi périphérique circulaire (10a) définissant un compartiment récepteur (12) et comportant une zone formant âme (10b) reliée au manche (11), une cavité (13) étant définie dans ladite zone (10b). Une roue à rochet (20) est logée dans le compartiment (12) et comprend plusieurs dents (21) sur sa périphérie extérieure et sur sa périphérie polygonale intérieure. Un cliquet (14) est monté dans la cavité (13) et comprend plusieurs dents (142) définies sur un premier côté de sorte qu'elles viennent en contact avec les dents (21) de la roue à rochet (20) et un second côté reposant sur une paroi définissant la cavité (13). Un élément de butée (15) est monté dans la cavité (13) et comporte une première extrémité venant contre la paroi définissant la cavité (13). Un ressort (16) est monté entre l'élément de butée (15) et l'élément denté de sorte qu'il sollicite l'élément denté et l'éloigne de l'élément butée (15).

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