Device for locking a rectilinear displacement mechanical jack in

Details Device for locking a rectilinear displacement mechanical jack in Device for locking a rectilinear displacement mechanical jack in

1993-03-08

1994-04-12

Luong, Vinh T.

Machine element or mechanism

Control lever and linkage systems

Elements

74567, 74569, 188 67, 297375, G05G 516

Patent

active

053015690

ABSTRACT:
At least one rod is normally locked by toothed rollers cooperating with toothed slanted inner portions of V-shaped locking members controlled by a locking cam. The V-shaped locking members are guided within an inner casing of a polygonal shape that has a lower portion for supporting the rod. The lower portion comprises two slanted inner elements which cooperate with a fluted roller placed underneath the underside of the rod. Under an impact, the fluted roller is locked underneath the rod by moving upwardly along one of the two slanted inner elements.

REFERENCES:
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patent: 4099777 (1978-07-01), Chekirda
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patent: 4552405 (1985-11-01), Wiers
patent: 4589301 (1986-05-01), Griner
patent: 4738156 (1988-04-01), Pipon et al.
patent: 4865386 (1989-09-01), Detloff et al.
patent: 4898424 (1990-02-01), Bell
patent: 5052752 (1991-10-01), Robinson

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