Process for two stage injection molding of air-conditioning blow

Details Process for two stage injection molding of air-conditioning blow Process for two stage injection molding of air-conditioning blow

1993-05-18

1994-09-27

Aftergut, Karen

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

264264, 425DIG34, B32B 100, B32B 300, B32B 704

Patent

active

053505557

ABSTRACT:
In producing a blow-out port device in a two-stage inject:on molding process by use of synthetic resin, the blow-out port device having a housing including pairs of shaft bores and pairs of circular section bosses both provided in and on opposed wall portion of a peripheral wall of the housing, and a plurality of blades each including a pair of protruding portions provided at opposite ends of each of blade bodies disposed within the housing to abut against a pair of boss and to have the same outside diameter as the boss, and a pair of support shafts projectingly provided on end faces of the protruding portions and turnably fitted in the shaft bores, the housing is forced at a primary injection step, and then, the blades are formed at a secondary injection step by use of the shaft bores in the housing as support shaft-forming cavities. Thus, it is possible to provide an air-conditioning blow-out port device having an improved appearance around a mounting portion of each blade.

REFERENCES:
patent: 4414170 (1983-11-01), Sano
patent: 4702156 (1987-10-01), Sano

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