Metal deforming – By deflecting successively-presented portions of work during... – To form spiral coil
Patent
1982-05-20
1984-02-28
Combs, E. Michael
Metal deforming
By deflecting successively-presented portions of work during...
To form spiral coil
72478, B21C 4700
Patent
active
044335644
ABSTRACT:
A manufacturing tool for finishing a preformed scroll for use in a scroll type fluid displacement apparatus is disclosed. The tool includes a working member having an end plate and a first involute element extending from one end surface of said end plate. The end plate has a plurality of arc shaped holes along the outer side wall of the first involute element. A second involute element is rotatably coupled to the working member and interfits with the first involute element in a disposition to define a radial gap between the first and second involute elements. A plurality of pins project axially from an axial end of the second involute element and penetrate through the arc shaped holes. A rotatable member has a plurality of holes extending in the axial direction. The pins have axial end portions which extend into the holes in the rotatable member to couple the rotatable member to the second involute member and to transmit the rotation of the rotatable member to the second involute element so that the relative rotation between the first and second involute elements adjusts the gap between them.
REFERENCES:
patent: 801182 (1905-10-01), Cruex
patent: 2203315 (1940-06-01), Vivie
patent: 3608349 (1971-09-01), Greiner et al.
patent: 3994635 (1976-11-01), McCullough
patent: 4082484 (1978-04-01), McCullough
patent: 4199308 (1980-04-01), McCullough
patent: 4395205 (1983-07-01), McCullough
patent: 4403494 (1983-09-01), McCullough
"Mass Production Manufacturing Techniques for Scroll Components", Jan. 1979, pp. 10-15.
Fukuhara Seiichi
Fukushima Eiji
Hiraga Masaharu
Combs E. Michael
Sanden Corporation
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