Locking linear actuator

Details Locking linear actuator Locking linear actuator

1991-05-28

1992-01-21

Look, Edward K.

Expansible chamber devices

With releasable stop or latch means to prevent movement of...

Engages power element movable relative to working member

92 23, 92 14, 92 15, 92 28, 92DIG4, F15B 1526

Patent

active

050819100

ABSTRACT:
A power cylinder assembly including means to positively lock the piston rod of the assembly in the forward extended position of the cylinder assembly. The locking means includes a pair of cam plates that are moved radially outwardly into locking engagement with lock slots defined by inserts positioned in the wall of the cylinder with the radially outward movement of the locking plates being generated by a lost motion connection between the piston and the piston rod in the form of a pin and slot connection. The pin is carried by the piston rod and coacts with cam slots in the cam plates to move the cam plates radially outwardly at the end of the forward stroking movement of the piston assembly so that the final forward movement of the piston generates the radially outward movement of the lock plates.

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