Spring manufacturing apparatus and driving force...

Metal deforming – By deflecting successively-presented portions of work during... – To form helical coil or tube

Reexamination Certificate

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Details

C072S138000, C072S145000, C072S140000

Reexamination Certificate

active

07143620

ABSTRACT:
The slide motions of tools mounted on tool units (400A,400B,400C) are realized by a single ring gear (10) serving as a common driving force for all the tool units and arranged on a forming table (200), and cam shaft blocks (20) for transmitting the rotation force of the ring gear (10) to the tool units (400A,400B,400C). The cam shaft blocks (20) are formed separately from the tool units (400A,400B,400C). The angles of arrangement of the cam shaft blocks (20) on the forming table (200) can be changed independently of the tool units (400A,400B,400C).

REFERENCES:
patent: 3983732 (1976-10-01), Noyce
patent: 4947670 (1990-08-01), Wu
patent: 5732583 (1998-03-01), Itaya
patent: 5875666 (1999-03-01), Itaya
patent: 5887471 (1999-03-01), Itaya
patent: 5937685 (1999-08-01), Matsuoka et al.
patent: 6142002 (2000-11-01), Itaya
patent: 6151942 (2000-11-01), Itaya
patent: 6701765 (2004-03-01), Itaya
patent: 101 34 828 (2002-09-01), None
patent: 2675523 (1997-07-01), None
patent: 2690704 (1997-08-01), None
patent: 2939472 (1999-06-01), None
Teijin Seiki K.K., Multi-forming Machine ZUB-360 Type, Oct. 1972, English Translation of pp. 2-6.

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