Patent ID: 8863623
Filing Date: 2014-10-21
Classification: B25B

Abstract:
1. An open-close work implement wherein a first half member and a second half member are intersected and pivotally fitted together, the distal ends being provided with an open-close working part for holding or cutting an object, and the proximal ends being provided with an open-close operation part for opening and closing the open-close working part; said open-close work implement characterized in being configured so that when closing force is applied to the open-close operation part to close the open-close working part and hold or cut the object, the open-close operation part flexes inward as the closing force applied to the open-close operation part is increased while the object is being held; the application of increasing closing force to the open-close operation part is perceived by feeling through a hand gripping the open-close operation part or a hand or fingertips pressing the open-close operation part, or by observing the amount of flexure; flexible moving parts of the open-close operation part are provided with a contact part which draws near a receiving part due to the inward flexure of the open-close operation part and contacts the receiving part when the closing force reaches a predetermined value, and when the closing force is further increased while the receiving part and the contact part are in a state of contact, the portion proximal from the contact part further flexes or moves inward but the increased closing force is not transmitted to the open-close working part, and the holding force holding the object or the cutting force cutting the object does not increase beyond the holding force or cutting force corresponding to the closing force that was being applied to the open-close operation part at the time the receiving part and the contact part came in contact.