Method of manufacturing a link plate

Details Method of manufacturing a link plate Method of manufacturing a link plate

2006-10-10

2006-10-10

Cozart, Jermie E. (Department: 3726)

Metal working

Method of mechanical manufacture

Obtaining plural product pieces from unitary workpiece

C029S417000, C029S557000, C029S564000, C072S372000, C072S373000, C059S004000, C059S084000

Reexamination Certificate

active

07117575

ABSTRACT:
In manufacturing a link plate for a roller chain, a band of sheet steel is intermittently forwarded along a path past series of dies, including rough punching dies and shaving dies. The punching dies and corresponding shaving dies are located symmetrically on opposite sides of an intermediate location along the path. The intermediate location coincides with a location at which the lateral deviation of the band reverses. Consequently, the outer peripheral surfaces of the plate and the inner peripheral surfaces of the connecting pin holes, both being formed by rough punching, are brought into very close alignment with the shaving dies.

REFERENCES:
patent: 3370416 (1968-02-01), Edgerton
patent: 4285754 (1981-08-01), DiMatteo
patent: 4360959 (1982-11-01), Johannesen
patent: 7021176 (2006-04-01), Sato et al.
patent: 4303004 (1994-08-01), None
patent: 57171528 (1982-10-01), None
patent: 2002-028749 (2002-01-01), None
U.S. Appl. No. 10/818,149, Link Plate for Silent Chain and Method of Manufacturing Same, Inventors Name, Toshifumi Sato, filed Apr. 5, 2004.

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