Power driven tool

Details Power driven tool Power driven tool

1991-07-12

1992-07-21

Jones, David

Metal deforming

By relatively movable offset tool-faces

With tool motion in fixed path

72114, 29243526, B21J 1516, B21J 1526

Patent

active

051312557

ABSTRACT:
A power driven tool for crimping a collar fitted on a shank of a rivet inlcudes an outer sleeve mounted on a body and having a portion for press fitting on an outer surface of the collar, and an inner sleeve disposed within the outer sleeve and reciprocally movable in an axial direction. The inner sleeve has a chuck for grasping the shank of the rivet. A drive shaft is threadably inserted within the inner sleeve and is driven by a motor in one direction or the other. A cam mechanism is disposed between the outer sleeve and the inner sleeve and includes a cam pin mounted on the outer sleeve, and a recess formed on the inner sleeve for engagement with the cam pin so as to prevent rotation of the inner sleeve relative to the outer sleeve. The recess includes a first relief portion and a second relief portion at both ends in an axial direction which permit rotation of the inner sleeve only in one direction and only in the other direction, respectively.

REFERENCES:
patent: 2437191 (1948-03-01), Gill
patent: 3029665 (1962-04-01), Baugh et al.
patent: 3197987 (1965-10-01), Martin
patent: 3686915 (1972-08-01), Miller et al.
patent: 4074554 (1978-02-01), Summerlin
patent: 4321814 (1982-03-01), Martin
patent: 4574612 (1986-03-01), Tanikawa

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