Patent ID: 6648317
Filing Date: 2003-11-18
Classification: B25B

Abstract:
A clamp comprising:a body; a drive mechanism for displacing a rod in said body along an axis of said body; a toggle link mechanism including a link member connected with said rod and a support lever linked with said link member for converting linear movement of said rod into rotational movement; an arm connected with said toggle link mechanism and rotating at a predetermined angle by said drive mechanism; and an impact-reducing mechanism provided in said body and reducing rotational force of said arm when said arm driven by said drive mechanism is rotated and clamps a workpiece, thereby reducing an impact exerted when said arm comes into contact with the workpiece, wherein said impact-reducing mechanism comprises a first plate and a second plate, said support lever being positioned between said first plate and said second plate, and said first plate and said second plate respectively comprise plate springs for engaging with sides of said support lever.