Metal deforming – By plural tool-couples – With means to feed work between plural tool stations
Reexamination Certificate
2007-10-02
2007-10-02
Crane, Daniel C (Department: 3725)
Metal deforming
By plural tool-couples
With means to feed work between plural tool stations
C072S405100, C072S405010, C198S621300, C414S752100
Reexamination Certificate
active
11353260
ABSTRACT:
A work transfer device employed in a multi-process press machine is provided with a drive unit formed of a servo motor, a cam shaft vertically provided so as to be rotatably driven by the drive unit, a cam mechanism formed of three cams including an X-axis feed cam that moves a feed bar provided with a work holding fitting for holding a work toward an X-axis direction, a Y-axis feed cam that moves the feed bar in parallel toward a Y-axis direction in parallel, and a Z-axis feed cam that moves the feed bar in parallel toward a Z-axis direction, a group of swing levers formed of three types of swing levers which are swingably operated in engagement with the corresponding cams that constitute the cam mechanism, and a link mechanism connected to each end portion of the swing levers such that the feed bar is linearly driven toward the X-axis, Y-axis, and Z-axis directions.
REFERENCES:
patent: 3397799 (1968-08-01), Wallis
patent: 3865230 (1975-02-01), Nakada
patent: 4139089 (1979-02-01), Jensen
patent: 2504382 (1996-04-01), None
patent: 10-328766 (1998-12-01), None
Patent Abstracts of Japan, Publication No. 10-328766, Publication Date Dec. 15, 1998, 2 pages.
Mechanical English Translation of Japanese Application No. 10-328766,A, 7 pages.
Patent Abstracts of Japan, Publication No. 07-164082, Publication Date Jun. 27, 1995, 2 pages.
Mechanical English Translation of Japanese Application No. 2504382,B, 16 pages.
Inoue Hideki
Niigawa Kunio
Crane Daniel C
Osha & Liang LLP
Takagi Manufacturing Co., Ltd.
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