Patent ID: 7032281

Claim:
A rivet-stroke adjusting device for a rivet-nut gun comprising: a) a body portion having a rivet-pulling assembly protruding from a front end thereof; b) a mounting base located on the front end of the body portion and having a cylindrical hole and two symmetrical holes receiving two screws therein; and c) a rivet-stroke adjusting assembly located between the rivet-pulling assembly and a pull shaft located in the cylindrical hole of the mounting base, the rivet-stroke adjusting assembly having: i) an adjustment ring having a center adjustment ring hole, outer threads, and two symmetrical adjustment ring pin holes, the pull shaft being inserted through the center adjustment ring hole; ii) two steel pins, a first end of one of the two steel pins being inserted into each of the two symmetrical adjustment ring pin holes, and a second end of one of the two steel pins being inserted into each of two symmetrical mounting base holes on a bottom round surface of the of the cylindrical hole of the mounting base; iii) a thread sleeve threadedly connected to the pull shaft; i) a spring located on the pull shaft between the adjustment ring and the thread sleeve; and ii) an outer sleeve having an outer sleeve cylindrical through hole with a threaded end threadedly connected to the outer threads of the adjustment ring.