WRENCH FOR ASSEMBLING THREADED JOINTS IN HARD-TO-REACH PLACES Russian patent published in 1999 - IPC

FIELD: subsidiary metal working and mounting tool, possibly in machine engineering and other branches of industry. SUBSTANCE: wrench includes working head, handle and stem connecting head with handle and made in form of links mutually joined by spring-loaded flexible member. Each link is in the form of stepped adaptor. Large step has inner faceted seat inclined relative to small step and outer cylindrical surface. Small step has outer faceted cylindrical surface and it enters to faceted seat of large step of next link. EFFECT: reduced cost price of wrench due to its simplified design, enhanced efficiency of wrench due to increased rigidity of its stem and possibility of changing bending contour. 3 dwg