Joints and connections – Biased catch or latch – By separate spring
Patent
1995-09-20
1996-06-04
Knight, Anthony
Joints and connections
Biased catch or latch
By separate spring
403325, 403326, B25G 318, F16B 704
Patent
active
055226698
ABSTRACT:
A torque transmitting coupling including a hub, an internally splined opening in the hub being adapted to receive an externally splined shaft. Locking structure in provided for selectively locking the shaft into the opening in the hub, such locking structure being biased to a locked position and selectively movable to an unlocked position. The locking structure includes means for automatically locking the shaft into the hub upon insertion of the shaft into the hub and further includes a structure for allowing unlocking of the shaft from the hub. The locking structure includes a plurality of bores radially disposed in the hub, a locking element slidably disposed in each of the bores and being radially movable from an inner, locking position wherein the elements are engageable within a recess of the shaft to prevent relative axial movement of the hub with respect to the shaft; and, an outer, unlocked position whereby the elements permit relative axial movement of the hub and the shaft. A lock opening mechanism is also provided to hold the locking elements in the unlocked position when the shaft is withdrawn. The locking structure is further prevented from losing its automatic lock-up condition; and the connection of the hub with a safety shield comprises but a pair of shoulders biased into a mating condition.
REFERENCES:
patent: 2926034 (1960-02-01), Weaver
patent: 3747966 (1973-07-01), Wilkes et al.
patent: 4289414 (1981-09-01), Recker
patent: 4402626 (1983-09-01), Recker
patent: 4579476 (1986-04-01), Post
patent: 4639162 (1987-01-01), Geisthoff et al.
patent: 4639163 (1987-01-01), Buthe et al.
patent: 4960344 (1990-10-01), Geisthoff et al.
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