Work holders – With fluid means – Vacuum-type holding means
Patent
1989-11-13
1990-08-21
Bray, W. Donald
Work holders
With fluid means
Vacuum-type holding means
29 39, 83451, 83939, 144 1A, 409189, 409192, 409219, 409903, B23B 704
Patent
active
049499424
ABSTRACT:
A table exchanging device for a wood working machine wherein workpieces of wood can be individually attracted and fixed by a sucking action by vacuum and such sucking action can be maintained also while the slide tables are slidably moved. The device comprises a pair of hollow slide tables having air sucking holes formed in upper walls thereof, a hollow bracket provided in a pneumatically communicating relationship on each slide table, and a hollow tubular shaft provided on each of a pair of left and right beds of the wood working machine and connected to a blower or a vacuum pump. A first hollow arm is supported for horizontal pivotal motion on each hollow bracket and pneumatically communicated with the follow bracket at their mutually connecting location. A second hollow arm is supported for horizontal pivotal motion on each hollow tubular shaft and pneumatically communicated with the hollow tubular shaft at their mutually connection location. Each first hollow arm is connected to the corresponding second hollow arm by means of a shaft and pneumatically communicated with the second hollow arm at their mutually connecting location.
REFERENCES:
patent: 4313478 (1982-02-01), Suzuki
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