Patent ID: 8474118
Filing Date: 2013-07-02
Classification: B25B,Y10T

Abstract:
1. An insertion tool for a tangless spiral coil insert, comprising: a mandrel defining a longitudinal axis, at least a leading end section of the mandrel including a screw shaft, a pivotal claw and a pivotal-claw attachment groove; the pivotal claw including a claw section, an attachment section fixed to the screw shaft and an elastic connection member connecting the claw section to the attachment section; the pivotal-claw attachment groove extending along the longitudinal axis for a predetermined length, the pivotal-claw attachment groove including a proximal end and an opposing distal end, the distal end receiving at least a portion of the claw section therein; and the elastic connection member being at least partially positioned within the pivotal-claw attachment groove and extending from the proximal end to the distal end of the pivotal-claw attachment groove, a first end of the elastic connection member being fixed to the attachment section of the pivotal claw, an opposing second end of the elastic connection member being attached to the claw section of the pivotal claw, the elastic connection member biasing the claw section outwardly in a radial direction of the screw shaft such that a hook section formed on the claw section elastically engages with a notch of the tangless spiral coil insert.