Patent ID: 8813590
Filing Date: 2014-08-26
Classification: F16B,Y10T

Abstract:
1. A coupling mechanism for releasably interconnecting first and second mechanical members, the mechanical members being longitudinally movable in relation to each other, the coupling mechanism comprising: a knee link mechanism including a first link member having an end pivotally supported on the first mechanical member and a second link member pivotally connected to the first link member so as to form a knee joint, a control rod pivotally connected to the knee joint, and a hook arm having an end pivotally connected to the second link member and an opposite end pivotal about a support point, the support point being stationary relative to the first mechanical member, the hook arm having a hook facing the second mechanical member, the hook being in mechanical engagement with a shoulder of the second mechanical member when a holding force exerted on the first mechanical member retains the control rod stationary such that the knee joint is kept in a substantially stretched position by the control rod and the control rod displacing the knee joint such that the hook of the hook arm is pulled out of engagement with the shoulder of the second mechanical member when the holding force is lesser than a threshold value.