Work holders – Relatively movable jaws – Means to actuate jaw
Patent
1985-10-23
1987-01-27
Moon, Charlie T.
Work holders
Relatively movable jaws
Means to actuate jaw
269903, 269 52, B25B 110, B25B 510
Patent
active
046389857
ABSTRACT:
In a sheet holding apparatus having a pair of parallelly disposed rails (17, 18) for sliding a sheet, such as a printed board, and plural guide holders (38, 42) having plural positioning guide pin (40, 44) to be inserted in holes of the printed wiring board, distance between the pair of rails (17, 18) is changed by a screw shaft (20) which is rotated by a driving motor (32) responding to change of size of the sheet, and a spline shaft (36) is disposed along the rails (17, 18), and the guide holders (32, 42) are provided to be slidable on the spline shaft (36), which puts up and down the guide holders (32, 42), hence positioning guide pins (40, 44) above and below a level of carrying plane of the sheet by rotation thereof.
REFERENCES:
patent: 1335721 (1920-04-01), Bergstrom
patent: 3665986 (1972-05-01), Johnson
patent: 4030717 (1977-06-01), Serlovsky
patent: 4050685 (1977-09-01), Cox
patent: 4074422 (1978-02-01), Borjesson et al.
patent: 4154998 (1979-05-01), Luft et al.
patent: 4231557 (1980-11-01), Blachly
patent: 4330113 (1982-05-01), Ferdinand et al.
patent: 4527786 (1985-07-01), Hsu
Fujiwara Kohji
Maeda Yoshinobu
Naito Takao
Matsushita Electric - Industrial Co., Ltd.
Moon Charlie T.
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