Device for chucking a zigzag spring

Metal working – Means to assemble or disassemble – With control means energized in response to activator...

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Details

29714, 29225, 29227, B23Q 1514

Patent

active

053866223

ABSTRACT:
A device for chucking a zigzag spring, which comprises a pair of pawl elements, a drive source, and a detector. One of the two pawl elements may be moved and stoped at at least one position by operation of the drive source through detection of the detector, and then both two pawl elements are brought into engagement with both end portions of the zigzag spring, respectively, according to a length of the spring. The detector may comprise a plurality of proximity switches, one of which detects movement of such one of the pawl elements to that particular position. By those plural proximity switches, a base position may be set for that one of pawl elements in relation to another of them, according to a selected one of plural different zigzag springs with different lengths.

REFERENCES:
patent: 3747895 (1973-07-01), Martin
patent: 4070743 (1978-01-01), Miyakawa et al.
patent: 4514888 (1985-05-01), Wheeler
patent: 4653185 (1987-03-01), Kajima et al.
patent: 5050281 (1991-09-01), Yamashina
Abstract and Diagrams for Japanese Publication 60-48226 (A), Mar. 1985.

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