Draw hook, ball mechanism - has screwdown housing for cycle rack base construction, with bush welded to top and bottom which allows sliding of ball

摘要

Mechanism includes a support fitted over the ball of a draw hook. A screw down bolt secures the housing. Over the opening (2,3) for the ball (3) of the draw hook fits a slide (10) with a key-shapedopening (12). Mechanism (1) fits over draw hook (2) consisting of ball (3) and upwards curved draw rod (4). Mechanism includes support housing (5) with top, bottom, rear and side walls. Over bottom (7) fits slided (10 slightly longer than bottom (7). Slide fits with clearance. Bush (11) is welded to top (6) and bottom (7). 1-D of bush (11) allows sliding of ball (3) in axial direction . Both (19) is screwed down through nut (18) to secure the mechanism.