公开(公告)号：US20240342786A1

公开(公告)日：2024-10-17

申请号：US18298504

申请日：2023-04-11

申请人： TECHWAY INDUSTRIAL CO., LTD.

发明人： Chih-Hua HSU ,  Liang Huan Chen

IPC分类号： B21J15/10 ,  B21J15/04 ,  B21J15/12 ,  B21J15/26

CPC分类号： B21J15/105 ,  B21J15/04 ,  B21J15/12 ,  B21J15/26

摘要： A power tool has a body, a trigger, a motor, a shaft set, a ball screw, and a pre-fastening module. The pre-fastening module has a first pre-fastening detecting member and a second pre-fastening detecting member. The first pre-fastening detecting member is moved with a connecting shaft of the shaft set in an axial direction. The second pre-fastening detecting member is located on a moving path of the ball screw. When a threaded spindle of the shaft set is inserted in a rivet nut and the connecting shaft is pressed to move inward the body, the first pre-fastening detecting member is moved to align with the second pre-fastening detecting member, and the motor is started automatically to drive the threaded spindle to rotate relative to the rivet nut. The motor will be stopped automatically after the rivet nut is pre-fastened on the threaded spindle, and this is convenient in use.