Metal deforming – By relatively movable offset tool-faces – With tool motion in fixed path
Patent
1986-02-14
1986-12-16
Larson, Lowell A.
Metal deforming
By relatively movable offset tool-faces
With tool motion in fixed path
7245317, 227112, B21D 3100
Patent
active
046287221
ABSTRACT:
A blind-riveting tool for setting pull-type rivet assemblies of the kind which has a pulling head on the mandrel comprises abutment member and mandrel-pulling means each with a collet, the latter inside the former, resiliently urged open to admit a mandrel and arranged to be closed by advance of an actuating sleeve on the collet of the abutment member. The abutment member and mandrel-pulling means as a whole are slidable to and from, under air pressure, both having pistons, one behind the other, in a common cylinder, and are separable to effect a rivet-setting stroke by admission of hydraulic fluid between the pistons. Means is provided for delivering a fresh rivet assembly axially into the collets of the abutment member and mandrel-pulling means when they are open in their retracted positions. The tool provides for the rapid and reliable insertion and setting of automatically fed rivet assemblies of the kind referred to, while being easy for the user to operate.
REFERENCES:
patent: 3580457 (1971-05-01), Henshaw
patent: 3733882 (1973-05-01), Klein
patent: 3886783 (1975-06-01), Hirsch
patent: 4027520 (1977-06-01), Klein
patent: 4205547 (1980-06-01), Yamasaka
Mauer Dieter
Potzas Peter
Jones David B.
Larson Lowell A.
McCartney Alan N.
USM Corporation
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