Failure mechanism for mechanical connection

Details Failure mechanism for mechanical connection Failure mechanism for mechanical connection

E - Fixed Constructions

02

F

E02F 9/28 (2006.01)

Patent

CA 2744485

A lock is disclosed for use within an attachment system that connects a ground engaging tool to a bucket lip. The bucket lip has a lug attached thereto, and the ground engaging tool having a recess which receives the lug in use. The lock is disposed, in use, between the lug and the ground engaging tool. The lock has a body, a force applying member and a force receiving member, such that the application of force by the force applying member causes the force receiving member to protrude from a first side of the body and to engage the lug. The present invention involves providing a preferred failure mode for the lock. The lock is constructed so that the relative hardnesses of the lug, the body, the force applying member and the force receiving member are such that the application of a sufficiently large force via the lug to the protruding portion of the force receiving member will preferentially cause deformation of the protruding portion of the compressing member ahead of deformation of the body or the force applying member.

L'invention porte sur un verrou destiné à être utilisé à l'intérieur d'un système de fixation qui relie un outil de prise avec le sol à une mâchoire de godet. La mâchoire de godet présente une patte fixée à celle-ci, et l'outil de prise avec le sol présente un renfoncement qui reçoit la patte lors de l'utilisation. Le verrou est disposé, lors de l'utilisation, entre la patte et l'outil de prise avec le sol. Le verrou possède un corps, un élément d'application de force et un élément de réception de force, de telle sorte que l'application de force par l'élément d'application de force amène l'élément de réception de force à faire saillie à partir d'un premier côté du corps et à venir en prise avec la patte. La présente invention concerne la fourniture d'un mode de défaillance préféré pour le verrou. Le verrou est construit de telle sorte que la dureté relative de la patte, du corps, de l'élément d'application de force et de l'élément de réception de force est telle que l'application d'une force suffisamment grande par l'intermédiaire de la patte sur la partie saillante de l'élément de réception de force provoquera, de préférence, une déformation de la partie saillante de l'élément de compression avant la déformation du corps ou de l'élément d'application de force.

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