Patent ID: 7832609
Filing Date: 2010-11-16
Classification: B25C

Abstract:
1. A stapler, comprising: a base portion which comprises a rotatable clinching portion, a magazine portion which is pivotally attached to rotate to a position on the base portion by a spindle at a rear end thereof, a push-down portion which is pivotally attached at a rear end thereof to rotate to a position on the base portion disposed above the magazine portion and which has a driving blade at a front end thereof, and a handle member which is pivotally attached to rotate towards a handle support member which is fixed to an upper front end of the base portion and which is adapted to be brought into contact with a front end of an upper portion of the push-down member so as to lower the push-down member, wherein the clinching portion comprises a slider which permits a lowering operation of the clinching portion, wherein a plurality of sliding support shafts are penetrated through the slider, the slider sliding vertically relative to the sliding support shafts, and wherein the handle member comprises a roller in a position which is in contact with the push-down portion and lowers the push-down portion using leverage from a fulcrum formed by the handle member, and wherein a rear end portion acts as a point of effort and the contact point with the push-down member acts as a point of application.