Newfrey Lcc

Daisuke Mori

A blind rivet fastening device including a dual function clutch device. The clutch releases at the rear end position RP of the pulling head and the clutch slips at the home position HP. The device includes a spindle clutch axially movable with respect to the spindle and integrally rotated, and a nut clutch integrally formed with the ball screw nut. The spindle clutch can move in the axial direction and can release from the nut clutch. The spindle clutch also has a first segment portion; one end of the first segment portion is a vertical plane and the other end is a slanted plane. The nut clutch has second segment portions of complementary shape. When the pulling head reaches the rear end position RP, the clutch is disengaged. When the pulling head returns to the home position HP, the inclined faces of the clutch slip with each other.

Blind rivet fastening apparatus

Nut fastening tool

A clutch apparatus for releasing the transmission of rotation from an electric motor to a spin shaft, is equipped with a rear clutch nut and a front clutch nut in order from the rear end side. The rear clutch nut transmits rotating force from the electric motor to the front clutch nut when engaged with the front clutch nut, but is disengaged from the front clutch nut by a predetermined rotation load. The front clutch nut has a cylindrical shape, so that the spin shaft can be arranged at an axial center portion, and when engaged with the engaging unit of the spin shaft, the rotating force is transmitted to the spin shaft, but the clutch is disengaged by a backward stroke of the front clutch nut and a predetermined stroke toward the tip of the spin shaft.

Growing community of inventors

Toyohashi, Japan

Daisuke Mori