Patent ID: 6814349
Filing Date: 2004-11-09
Classification: B25B

Abstract:
A clamping device for clamping work pieces, comprising:a box-shaped body having a longitudinal axis; a clamping member movably supported by the box-shaped body between a first or forward, and a second or rearward operative positions corresponding respectively to an open and a clamped condition of the device; a manually operable control lever pivotally supported by the box-shaped body; and connecting means for operative connection between the clamping member and the control lever said connecting means comprising: a guide element movable parallely to the longitudinal axis of the body; a first toggle-lever system between the clamping member and the control lever; a second toggle-lever system between the guide element and the control lever, said second toggle-lever system comprising first and second link members hingedly connected each others, to the guide member and to the control lever; and in that said first and second toggle-lever system are constructed and arranged to operate in correlation with each other, in such a way that the hinge axes of the link members of the second toggle-lever system, in a forward position of the clamping member are arranged on different reference lines forming an angle between each others; and stop means for stopping the second toggle-lever system in the forward position of the clamping member of the clamping device.