B - Operations – Transporting – 21 – J
Patent
B - Operations, Transporting
21
J
218/10
B21J 15/10 (2006.01) B21J 15/06 (2006.01) B21J 15/34 (2006.01)
Patent
CA 1060394
ABSTRACT OF THE DISCLOSURE: A fluid pressure operating riveting tool comprising a tubular main body at the end of which is provided a working cylinder of which the lower end defines a fork. A riveting head is mounted at the lower end of the fork legs for rotation about an axis transverse to the legs. This head has a pair of coaxial arms each having a pull mandrel intended to receive a hollow rivet and each slidably supported axially of one of the arms. A piston is slidably received in the working cylinder and has a piston rod that extends through the main body and across both of its ends. The piston is resiliently pressed against the lower end of the main body in an inoperative position. The operating handle of the tool is mounted about the main body and is also resiliently pushed toward an inoperative position which cor- responds to the inoperative position of the piston. The lower end of the piston has a forming head device intended to be moved over the rivet slid over one of the mandrels to crimp it there- over. The pressure fluid is fed lengthwise of the rod to move the piston and thus the forming head toward the rivet-holding mandrel. Finally, an indicator mechanism is provided both on the piston rod and on the handle so that pressure fluid is fed as soon as the handle is moved from its inoperative position.
291078
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