Work support

Details Work support Work support

1997-05-07

1999-03-30

Watson, Robert C.

Work holders

Work-underlying support

Support mounting means

279 409, 279 50, B23B 3130

Patent

active

058878629

ABSTRACT:
A support rod (3) vertically movably inserted into a housing (2) is urged upward by an advancing spring (4). An annular piston (6) is inserted between a barrel portion (2c) of the housing (2) and an outer peripheral surface of the support rod (3). A collet (10) externally fitted onto a holding and fixing portion (C) of the support rod (3) is received by a lower end wall (2b) of the housing (2). A tapered transmission member (17) externally fitted onto the collet (10) is urged downward by a holding spring (22). The urging force clamps the support rod (3) at a predetermined height through the collet (10).

REFERENCES:
patent: 3168322 (1965-02-01), Dziedzic
patent: 3643765 (1972-02-01), Hanchen
patent: 3791661 (1974-02-01), Giles
patent: 3880046 (1975-04-01), Sessody
patent: 4791841 (1988-12-01), Pruvot et al.
patent: 4836091 (1989-06-01), Taylor
patent: 4948105 (1990-08-01), Yonezawa

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