Patent ID: 9687072
Date: 2017-06-27
CPC Classifications: A47B,G05G,Y10T

Claim:
1. A readily releasable locking device for guarding against a linear movement of a linearly movable elongated shell relative to a non-movable tubular core member, the linearly movable elongated shell being slidably fitted on the non-movable tubular core member, and being disposed to make continuous linear displacement relative to the non-movable tubular core member between a retracted position and an extended position, said readily releasable locking device comprising: an under mounting frame adapted to be secured to the linearly movable elongated shell; front and rear mounting frames adapted to be secured to the non-movable tubular core member and spaced apart from each other in a forward-and-rearward direction; a guiding bar extending in the forward-and-rearward direction to terminate at front and rear ends which are secured to said front and rear mounting frames, respectively; a hollow block configured to be guided by and movable relative to said guiding bar between a rear position, where said hollow block is close to said rear mounting frame, and which corresponds to the retracted position of the linearly movable elongated shell, and a front position, where said hollow block is remote from said rear mounting frame, and which corresponds to the extended position of the linearly movable elongated shell; a connecting rod which extends through said front mounting frame to connect said under mounting frame and said hollow block, thereby permitting said hollow block to be moved with the linearly movable elongated shell; a latch member disposed in said hollow block and coupled with said guiding bar such that said latch member is displaceable between a first orientation, where said latch member together with said hollow block is retained on said guiding bar, and a second orientation, where said latch member together with said hollow block is permitted to move relative to said guiding bar; a biasing member disposed in said hollow block to bias said latch member to the first orientation; and an actuating unit configured to actuate said latch member to move from the first orientation to the second orientation.