公开(公告)号：US09687913B1

公开(公告)日：2017-06-27

申请号：US15342301

申请日：2016-11-03

申请人： Lawrence D. Smith ,  Lorraine D. Smith

发明人： Lawrence D. Smith ,  Lorraine D. Smith

IPC分类号： B23B31/40

CPC分类号： B23B31/4033 ,  B23B31/207 ,  B23B2260/034 ,  B23B2270/20 ,  Y10T279/1008 ,  Y10T279/1045 ,  Y10T279/1087

摘要： An I.D. collet has a housing with a hollow bore and an undercut portion; a taper screw slidable into and out of the hollow bore of the housing and having a conical head; a spindle having a hollow bore in alignment with the hollow bore of the housing for receiving the conical head of the taper screw into and out of the hollow bore of the spindle such that the conical head enlarges the diameter of the spindle; and a draw nut assembly threadably connected to the taper screw and having tangs abutting the undercut portion of the housing when the spindle reaches a preset location in the hollow bore of the spindle to prevent further enlargement of the spindle when the tangs come into contact with the undercut portion of the housing.