A steering wheel , comprising: a cored bar member ; an airbag module which houses an airbag cushion and an inflator and is coupled to the cored bar member via a coupling pin , wherein the steering wheel employs a configuration in which the coupling pin extends from the airbag module side to the cored bar member side; a coil spring arranged outside the coupling pin , and a support member supporting an upper end of the coil spring at a peripheral part of the coupling pin , wherein the support member comprises a hook which includes: a support surface protruding in the direction vertical to a shaft of the coupling pin and supporting the upper end part of the coil spring ; and a side extending from the support surface towards a lower side of the coupling pin tilting towards the center side of the support member from its upper end adjacent the support surface to its lower end, characterized in that the hook is provided at minimally four positions at equal intervals in a plane perpendicular to the axial direction of the coupling pin ; within a predetermined range from the upper tip, the coil spring is molded so as to have a constant curvature radius (r1) which is smaller than the radius (r0) of the circle connecting the outermost edges of the hooks , such that the coil spring is supported on the support surface of each of the hooks within at least this range, the curvature radius gradually increases at the part exceeding the predetermined range, while, at the point of reaching 360 degrees, the coil spring has a curvature radius (r2) which is larger than the radius (r0) of the circle connecting the outermost edges of the hooks ; and the coil spring is configured so as not to interfere with the side of the hook . a cored bar member ; an airbag module which houses an airbag cushion and an inflator and is coupled to the cored bar member via a coupling pin , wherein the steering wheel employs a configuration in which the coupling pin extends from the airbag module side to the cored bar member side; a coil spring arranged outside the coupling pin , and a support member supporting an upper end of the coil spring at a peripheral part of the coupling pin , wherein the support member comprises a hook which includes: a support surface protruding in the direction vertical to a shaft of the coupling pin and supporting the upper end part of the coil spring ; and a side extending from the support surface towards a lower side of the coupling pin tilting towards the center side of the support member from its upper end adjacent the support surface to its lower end, characterized in that a support surface protruding in the direction vertical to a shaft of the coupling pin and supporting the upper end part of the coil spring ; and a side extending from the support surface towards a lower side of the coupling pin tilting towards the center side of the support member from its upper end adjacent the support surface to its lower end, characterized in that the hook is provided at minimally four positions at equal intervals in a plane perpendicular to the axial direction of the coupling pin ; within a predetermined range from the upper tip, the coil spring is molded so as to have a constant curvature radius (r1) which is smaller than the radius (r0) of the circle connecting the outermost edges of the hooks , such that the coil spring is supported on the support surface of each of the hooks within at least this range, the curvature radius gradually increases at the part exceeding the predetermined range, while, at the point of reaching 360 degrees, the coil spring has a curvature radius (r2) which is larger than the radius (r0) of the circle connecting the outermost edges of the hooks ; and the coil spring is configured so as not to interfere with the side of the hook . <EOS>