THE PRINCIPAL OF THE TOGGLE MECHANISM

A positive lock with a quickaction release facility


• The toggle mechanism is a method of using the mechanical advantage of a geometrical linkage to amplify the low operator input force to a high output clamping force.

• This is achieved using the over centre principal, which provides a positive lock ,preventing the clamp from opening during work holding.

• These features make the toggle clamp most suitable for repetitious workholding applications, whilst allowing a wide clearance to load and unload the work piece.

• The over centre dimension is critical to the reliable function of the clamp, ensuring that the linkage locks sufficiently to allow the maximum output force even under arduous conditions.