Work holders – With fluid means – Vacuum-type holding means
Patent
1991-06-25
1992-06-09
Watson, Robert C.
Work holders
With fluid means
Vacuum-type holding means
B25B 1100
Patent
active
051200333
ABSTRACT:
A workpiece is placed on a plurality of supporting cylinders which are projected upwardly from an upper plate or a hollow table body. All of the supporting cylinders normally assume a lowered position at which lower end faces thereof contact seat portions in a chamber of the table body so that attracting pads provided at upper ends of the supporting cylinders are disconnected from the chambers. Accordingly, even if the chamber is put into a negative pressure condition, the workpiece is not attracted to the attracting pads. Then, compressed air is supplied to the pneumatic cylinders of those supporting cylinders which fall within a horizontal area of the workpiece to lift those supporting cylinders. Consequently, the lower end faces of those supporting cylinders are spaced away from the seat portions to allow communication between the attracting pads and the chamber by way of air sucking passageways formed in the supporting cylinders to suck air through the attracting pads. As a result, the workpiece is attracted to the attracting pads and thus fixed to the lifted supporting cylinders.
REFERENCES:
patent: 4410168 (1983-10-01), Gotman
patent: 4640501 (1987-02-01), Poland
patent: 4684113 (1987-08-01), Douglas et al.
patent: 4723766 (1988-02-01), Beeding
patent: 4805887 (1989-02-01), Ray
LandOfFree
Work table for wood working machine or the like does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Work table for wood working machine or the like, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Work table for wood working machine or the like will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1799793