Fastener-setting tool

Details Fastener-setting tool Fastener-setting tool

1986-02-14

1986-12-23

Larson, Lowell

Metal deforming

By relatively movable offset tool-faces

With tool motion in fixed path

7245307, 7245317, 7245316, B21J 1500

Patent

active

046304606

ABSTRACT:
A pneumatic-hydraulic tool for setting two-part fasteners, for example pull-type blind riveting assemblies, has a power unit comprising a thrust member and pulling means actuated by pistons slidable, one behind the other, in a common cylinder. The pistons advance and retract as a whole under the influence of air pressure, and are separable to effect a fastener-setting stroke by admission of hydraulic fluid under high pressure between the pistons. Hydraulic fluid can be admitted and expelled to and from the cylinder between the pistons wherever along the cylinder the pistons may be.

REFERENCES:
patent: 3777540 (1973-12-01), Siebol et al.
patent: 3886783 (1975-06-01), Hirsch
patent: 3996784 (1976-12-01), Champoux et al.
patent: 4583388 (1986-04-01), Hogenhout

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