| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for tightening two-parts fastener which is easy in assembly, small in the number of parts, and relatively lightweight. SOLUTION: In order to tighten a two-parts fastener where a first part 7 must be pulled and a second part 6 must be held for tightening, a blind rivet in particular, the device comprises a housing 1, a feed device 9 on the housing 1 to feed the fastener 8 into the housing 1 through an orifice 12 in the housing 1, and a receiving surface 3 having a gripper 5 at an open end of a pulling parts 4 in a cooperation with a pulling piston 13 which can hold the second part 6 in the tightening process, pull the first part 7 in the tightening process, and is movable in the longitudinal direction along the axis of the housing 1 by a working unit in a first chamber 14. |
