Assistance device for assisting use of electric screw driver used to assemble motor vehicle on assembly line, has roller delimiting bearing track supported on gutter so as to pivot device around pivot axis between rest and work positions

摘要

The device (10) has a cradle (42) extending from a front part bearing a tool (12) to a curved rear part forming a hook. A roller (58) is arranged at an end of the second part. The roller delimits a bearing track (64a) designed for being supported on a gutter (34) in order to allow pivoting of the device around a pivot axis (B) perpendicular to a work axis (A) of the tool between rest position in which an end piece (16) of the tool is arranged with respect to a target (22) i.e. nut, and working position in which the end piece of the tool is engaged with the target.