DRAG-PUSHING BAR Russian patent published in 2010 - IPC F16B7/14 F16C7/06 

FIELD: machine building.

SUBSTANCE: drag-pushing bar is made with case (1) and with at least one adaptor (2) for assembly of drag-pushing bar. Adaptor (2) changing length of drag-pushing bar is connected with case (1) by means of threaded connection (7) and is designed to rotate. There is also fixing facility (4) ensuring fixation of the case and adaptor so, as to set specified fixation force at multiple positions of rotation and to provide unblocking. Fixing facility (4) has two fixing elements (10, 11); also first fixing element (10) is located on adaptor (2), while second fixing element (11) is located on case (1). First fixing element (10) has at least one fixing lug (12) by means of which it engages second fixing element (11) to hold fixing facility (4). Second fixing element (11) is made in form of a tooth ring. First fixing element (10) has a circular segment spring-enveloping the tooth gear and applying force to it ensuring mutual fixation of case (1) and adaptor (2) in the direction of rotation. When case (1) turns, spring circular segment expands and facilitates turn of case (1) relative to adaptor (2).

EFFECT: drag-pushing bar can be easily and quickly assembled even at restricted space.

4 cl, 4 dwg