Abstract: A rim of the steering wheel includes a core member, a cladding layer mounted around the core member, a decorative garnish which covers an outer circumference of the rim, and a mounting base on which the decorative garnish is mounted. The decorative garnish includes a decorative region covering the outer circumference of the rim, a positioning projection which protrudes out of the back surface of the decorative region for positioning against the mounting base, and a rib which protrudes out of the back surface of the decorative region in a vicinity of a root region of the positioning projection. The mounting base includes an insert recess for receiving the positioning projection. The cladding layer is disposed in an entire inner circumference of the insert recess and at an abutment seat against which the rib abut when the positioning projection is inserted into the insert recess.

Abstract: Disclosed herein is a process for producing an integral skin polyurethane foam which comprises expanding a reacting mixture containing substantially no blowing agent in an evacuated mold cavity. Disclosed also herein is an apparatus for producing said an integral skin polyurethane foam which comprises a mold having a cavity and a vent hole, a vacuum chamber communicating with the cavity through the vent hole, a vacuum pump to evacuate the cavity through the vacuum chamber, and a sight glass attached to the vacuum chamber so as to make the vicinity of the vent hole visible from the outside of the vacuum chamber.

Abstract: A steering wheel having a body including a boss, a ringlike rim and a plurality of inclined spokes connecting the boss and the rim is characterized in that a pad which may serve as an air bag unit is disposed within the body so as to extend from the boss to the upper portion of the spokes. The pad is mounted with a plurality of brackets extending between the pad and the spokes. Each of the brackets is fastened to an inclined spoke on one hand and, on the other, has a through-hole for receiving a support projecting from the boss or a respective spoke for holding the pad in position and regulating the lateral movement of the pad.