Method of manufacturing a screw connector

Details Method of manufacturing a screw connector Method of manufacturing a screw connector

1997-08-11

1999-12-14

Silbaugh, Jan H

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264275, 425125, 4251291, B29C 4514

Patent

active

060012943

ABSTRACT:
A screw connector is manufactured with an injection metal mold. The screw connector includes a connector main body and a nut embedded in the connector main body. An axis of the nut extends in a forward and backward direction of the connector main body. The screw connector further includes a first opening located on a front side of the nut for receiving by a bolt of a mating connector and a first columnar space located on a rear side of the nut for receiving a distal end portion of the bolt. The method includes three steps. The first step is setting the metal mold in such a state that the nut is held by a front projection portion and a rear projection portion. This front projection portion projects rearwardly and has a small diameter portion and a portion having larger diameter than said small diameter portion. This rear projection portion projects forwardly so as to be in contact with a rear end face of said nut. The second step is injecting a melted resin in said metal mold. The third step is separating a resin molded product from said metal mold.

REFERENCES:
patent: 2741288 (1956-04-01), Johnson
patent: 3077003 (1963-02-01), Hubson
patent: 3081497 (1963-03-01), Scherry
patent: 3445559 (1969-05-01), Siteman
patent: 4075273 (1978-02-01), Liautaud
patent: 4788022 (1988-11-01), Sakayori et al.

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