Device for controlling the locking and unlocking operations of a

Details Device for controlling the locking and unlocking operations of a Device for controlling the locking and unlocking operations of a

1999-01-22

2000-04-25

Lorence, Richard M.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

With means to axially shift shaft

74813L, 29 485R, B23Q 1606

Patent

active

060530758

ABSTRACT:
A device for controlling the locking and unlocking operations of a gear wheel-rotary disc assembly comprises a ball for circulating screw having one end thereof coupled to a rotating coupling member. The screw is in turn rotatably engaged in a fixed ring-nut, which is housed in the bed of the device, to allow the screw to be axially driven, under the control of a driving motor.
With respect to prior like devices, the inventive device allows the rotary disc to be driven quicker and more accurately from a locking position to an unlocking position thereof.

REFERENCES:
patent: 3798722 (1974-03-01), Lutz
patent: 4467680 (1984-08-01), Kettel
patent: 5187847 (1993-02-01), Thumm et al.

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