Locking assembly and method

E - Fixed Constructions – 02 – F

Patent

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Details

E02F 9/28 (2006.01)

Patent

CA 2453304

A locking arrangement (1) for releasably locking a wear tooth (2) to a tooth adaptor (3); the wear tooth (2) being defined by a top wall, a bottom wall and a pair of opposed sidewalls, each sidewall having an elongate slot (5) therethrough; the tooth adaptor (3) being of generally complementary shape to receive said wear tooth (2), and having an elongate cavity (6) on each opposed side thereof adapted to substantially align with a respective slot (5) of said wear tooth (2) when said wear tooth is installed on said tooth adaptor; said slot having a first inner surface, the locking arrangement including a retaining means (4) to be installed in each aligned cavity and slot to releasably lock said tooth (2) to said adaptor (3), the retaining means (4) including a pair of engaging retaining pieces (7, 8) adapted to fit in end- abutting relationship when in said locked position, whereby, an arcuate force is applied to at least one of said pieces (7, 8) to release said pieces from said locked position.

L'invention concerne un dispositif (1) destiné à bloquer de manière amovible une dent (2) à un adaptateur (3) de dent. La dent (2) est définie par une paroi supérieure, une paroi inférieure et une paire de parois latérales, chaque paroi latérale comprenant une rainure allongée (5). L'adaptateur (3) de dent présente une forme généralement complémentaire pour recevoir ladite dent (2), et comprend une cavité allongée (6) de chaque côté opposé, adaptée pour être sensiblement alignée avec une rainure (5) respective de ladite dent (2) lorsque celle-ci est installée sur ledit adaptateur. Ladite rainure possède une première surface intérieure. Le dispositif de blocage comprend des organes (4) de retenue destinés à être installés dans chaque cavité et rainure alignées afin de bloquer de manière amovible ladite dent (2) à l'adaptateur (3), les organes (4) de retenue comprenant une paire d'éléments (7, 8) de retenue de contact destinés à entrer en contact par leurs extrémités lorsqu'ils sont en position de blocage, une force arquée étant ainsi appliquée sur au moins un desdits éléments (7, 8) pour libérer lesdits éléments de ladite position de blocage.

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