Joints and connections – Articulated members – Lockable at fixed position
Patent
1986-04-21
1987-05-05
Kundrat, Andrew V.
Joints and connections
Articulated members
Lockable at fixed position
403317, 403322, F16B 710, F16D 112
Patent
active
046627715
ABSTRACT:
Lock mechanism includes a first sleeve on the inner end of the outer telescoping member having a forward extension with a non-circular central passage therethrough for close sliding receipt of a non-circular external surface on the inner tubular member to prevent relative rotation between the telescoping members. The forward extension has an external circumferential groove, and a radial opening extending through the bottom of the groove for receipt of a ball that successively engages a plurality of longitudinally spaced sockets in one of the non-circular sides of the inner telescoping member during relative longitudinal movement therebetween. Surrounding the first sleeve is a second sleeve having an internal shoulder which when in radial alignment with the ball prevents the ball from disengaging a selected socket in the inner telescoping member to positively lock the telescoping members against relative longitudinal movement, and an internal recess which when in radial alignment with the ball permits radial movement of the ball into and out of the sockets so that the inner telescoping member may be moved longitudinally in or out relative to the outer telescoping member.
REFERENCES:
patent: 1371882 (1921-03-01), Ferguson et al.
patent: 2382291 (1945-08-01), Carlberg
patent: 2470256 (1949-05-01), McIlroy
patent: 3190168 (1965-06-01), Sullivan
patent: 3317220 (1967-05-01), Bruning
patent: 3351359 (1967-11-01), Ferraris
patent: 4198080 (1980-04-01), Carpenter
patent: 4365535 (1982-12-01), Buttner et al.
patent: 4480497 (1984-11-01), Locher
Moore Charles G.
Roe Elverton O.
Kundrat Andrew V.
The Wooster Brush Company
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