Adjustable type hand rivet nut tool with quick-change mandrel

Details Adjustable type hand rivet nut tool with quick-change mandrel Adjustable type hand rivet nut tool with quick-change mandrel

1997-04-15

1998-03-24

Jones, David

Metal working

Means to assemble or disassemble

Overedge assembling means

29243528, 723918, 72114, B21J 1538

Patent

active

057298807

ABSTRACT:
A rivet nut tool includes a lower handle defining a body and an upper handle pivotably connected thereto. A nosepiece is attached to the body. A collet case is mounted in the body and fixedly connected with the upper handle. An adjusting collar threadedly engages with the collet case and defines an adjusting knob. A lock nut threadedly engages with the adjusting collar and locates between the adjusting knob and the body. A mandrel is connected with the adjusting collar and extends through the adjusting collar, the collet case and the nosepiece. The mandrel defines a threaded portion protruding from the nosepiece and a mandrel knob distal to the threaded portion and in contact with the adjusting knob. The mandrel is so connected with the adjusting collar that it is rotatable relative to the adjusting collar and when a large pulling force is exerted on the mandrel knob, the connection between the mandrel and the adjusting collar will be released. The mandrel is so connected with the adjusting collar that it makes the length of threaded portion of mandrel adjustable to be the same length as that of rivet nut, and the lock nut engaged with the adjusting collar can lock the positions of the adjusting collar and the mandrel.

REFERENCES:
patent: 2324104 (1943-07-01), Moss
patent: 3328985 (1967-07-01), Keymer
patent: 3886782 (1975-06-01), Miyamoto
patent: 4140000 (1979-02-01), Ehmann
patent: 4192163 (1980-03-01), Martin
patent: 4425782 (1984-01-01), Todisco
patent: 5050420 (1991-09-01), Liu

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