Abstract: A tubular bushing (26) assembly made of plastic material and disposed in an opening (24) defined by a pair of spaced sheets in a seat back (14) of an automotive vehicle to adjustably support each of the posts (22) of a headrest (20). The bushing (26) comprises an outer sleeve (28) presenting ribs (32, 34) for engaging the edges of the opening (24) in each of the sheets of the bracket of the seat back frame (18) and an inner sleeve (30) for insertion within said outer sleeve (28) for slidably supporting the post (22) and having hoop rings (46, 48) for forcing the outer sleeve (28) radially outwardly to deform the ribs (32, 34) about and into gripping engagement with the edges of the openings (24).

Abstract: A magnetic switch assembly for an electrical circuit includes a switch housing with a cavity formed therein and at least one magnetically attractable electrical contact member exposed within the cavity. One or more electrically-conductive magnetic pole members are movably disposed within the cavity, with a magnet being secured to the pole members for movement therewith. The pole member or members and the magnet are movable in the cavity between a first position in electrical contact with the contact member in order to complete electrical continuity of the electrical circuit, and a second position spaced away from the contact member in order to break electrical continuity of the electrical circuit. A movable and magnetically attractable striker member is disposed for movement toward and away from the switch housing cavity, such as on a pivotal or hinged accessory cover.