Patent ID: 6068173
Filing Date: 2000-05-30
Classification: B25C

Abstract:
A simple type power stapler which comprises:a main body having a base portion,a punching arm having a rear end portion which is pivotally connected to the main body and a front end portion provided with a staple pin punching plate,a housing frame for staple pins which has a rear end portion pivotally connected to the main body and a front end portion provided with a staple pin punching outlet, anda hanging means for hanging the housing frame to the punching arm, which is provided with a hook member engaging with an upper portion of the punching arm and a support member for supporting a lower portion of the housing frame, whereinthe main body includes a pushing member which is vertically movable by driving a motor,a supporting frame for accommodating the pushing member so as to be movable in a vertical direction is provided in an upper portion of the punching arm,a space for an object to be stapled is formed between the front end portion of the housing frame and the base portion in a state that the punching arm and the housing frame are hanged by the pushing member, when it is at an upper position, in association with the supporting frame,the punching arm and the housing frame are so adapted to descend by their own weight when the pushing member is moved downward by the driving force of the motor whereby a lower surface of the front end portion of the housing frame comes to contact with an upper surface of the object to be stapled, andthe distance between the hook member and the support member of the hanging means is determined to have a dimension which allows the downward movement of the front end portion of the punching arm caused by the movement of the pushing member to its lowest position whereby staple pins in the housing frame are punched out by the staple pin punching plate through the punching outlet.