A coupling device (16) for mounting an airbag module (14) to be oscillating on a steering wheel structure (12) of a vehicle steering wheel (10) includes a mounting member (18) which includes, relative to a steering wheel axis, an axial bottom side (20) which in the assembled state of the vehicle steering wheel (10) faces the steering wheel structure (12) as well as an opposite axial top side (22) which in the assembled state of the vehicle steering wheel (10) faces the airbag module (14), a contact face (24) for a damping element (26) provided on the axial bottom side (20) for oscillating coupling of the mounting member (18) to the steering wheel structure (12), and comprising a locking element (28) disposed on the top side (22) of the mounting member (18) for locking with the prefabricated airbag module (14), wherein the locking element (28) is configured so that the airbag module (14) can be coupled to the mounting member (18) by a locking connection substantially in an axially fixed manner or in an axially restrictedly movable manner.

Provided is a steering wheel including a dynamic damper mechanism which does not easily deteriorate over time, in which a resonance frequency to be damped does not easily change. An attaching structure for attaching an airbag device to a steering wheel incudes: a tubular guide member (51) passing through an opening of a fixing plate (25) of the airbag device; a hook (70, 80) engaging with a lock spring (53); a hollow holding member (67) fixed to a main body part (110) of the steering wheel and holding a base end portion (71) of the hook while restricting the base end portion (71) from moving toward a tip end portion (75) of the hook; and a return spring (61), and the base end portion (71) has a bottom portion being a convex spherical shape.

Provided is a steering wheel including a dynamic damper mechanism which does not easily deteriorate over time, in which a resonance frequency to be damped does not easily change. An attaching structure for attaching an airbag device to a steering wheel incudes: a tubular guide member (51) passing through an opening of a fixing plate (25) of the airbag device; a hook (70, 80) engaging with a lock spring (53); a hollow holding member (67) fixed to a main body part (110) of the steering wheel and holding a base end portion (71) of the hook while restricting the base end portion (71) from moving toward a tip end portion (75) of the hook; and a return spring (61), and the base end portion (71) has a bottom portion being a convex spherical shape.

The invention relates to a coupling device (16) for mounting an airbag module (14) to be oscillating on a steering wheel structure (12) of a vehicle steering wheel (10), comprising a mounting member (18) which includes, relative to a steering wheel axis (A), an axial bottom side (20) which in the assembled state of the vehicle steering wheel (10) faces the steering wheel structure (12) as well as an opposite axial top side (22) which in the assembled state of the vehicle steering wheel (10) faces the airbag module (14), a contact face (24) for a damping element (26) provided on the axial bottom side (20) for oscillating coupling of the mounting member (18) to the steering wheel structure (12), and comprising a locking element (28) disposed on the top side (22) of the mounting member (18) for locking with the prefabricated airbag module (14), wherein the locking element (28) is configured so that the airbag module (14) can be coupled to the mounting member (18) by a locking connection substantially in an axially fixed manner or in an axially restrictedly movable manner.

The invention relates to a coupling device (16) for mounting an airbag module (14) to be oscillating on a steering wheel structure (12) of a vehicle steering wheel (10), comprising a mounting member (18) which includes, relative to a steering wheel axis (A), an axial bottom side (20) which in the assembled state of the vehicle steering wheel (10) faces the steering wheel structure (12) as well as an opposite axial top side (22) which in the assembled state of the vehicle steering wheel (10) faces the airbag module (14), a contact face (24) for a damping element (26) provided on the axial bottom side (20) for oscillating coupling of the mounting member (18) to the steering wheel structure (12), and comprising a locking element (28) disposed on the top side (22) of the mounting member (18) for locking with the prefabricated airbag module (14), wherein the locking element (28) is configured so that the airbag module (14) can be coupled to the mounting member (18) by a locking connection substantially in an axially fixed manner or in an axially restrictedly movable manner.

A support structure for an airbag apparatus includes an airbag apparatus having a bag holder, a supporting member having a shaft portion, a slider, an annular damper holder, and an annular elastic member. The shaft portion extends in a front-rear direction, while being passed through the bag holder. The shaft portion includes a flange at the rear end. The slider is fitted around the shaft portion to be slidable in the front-rear direction. The damper holder covers part of the slider in the front-rear direction. The elastic member includes protrusions that protrude rearward from the elastic member so as to contact the flange, thereby partially filling a gap between the elastic member and the flange. The protrusions extend radially with an axis of the supporting member serving as a center.

A support structure for an airbag apparatus includes an airbag apparatus having a bag holder, a supporting member having a shaft portion, a slider, an annular damper holder, and an annular elastic member. The shaft portion extends in a front-rear direction, while being passed through the bag holder. The shaft portion includes a flange at the rear end. The slider is fitted around the shaft portion to be slidable in the front-rear direction. The damper holder covers part of the slider in the front-rear direction. The elastic member includes protrusions that protrude rearward from the elastic member so as to contact the flange, thereby partially filling a gap between the elastic member and the flange. The protrusions extend radially with an axis of the supporting member serving as a center.

There is provided a core of a steering wheel to which a module can be stably fixed while manufacturing cost is suppressed. Core (28) includes boss core portion (36) at which a gate of a mold is set and which is connected to a steering shaft. Core (28) includes a rim core portion that is positioned around boss core portion (36). Core (28) includes a plurality of spoke core portions (37) that connect boss core portion (36) to the rim core portion. Core (28) includes connecting portion (66) that includes fixing portion (66e) to which a module is fixed and connects spoke core portions (37) positioned on upper and lower sides in a neutral state of the steering wheel. Core (28) includes expansion portion (71) of which a width gradually increases downward toward upper end portion (66a) of connecting portion (66) in the neutral state of the steering wheel.

An airbag module that serves as a damper mass mounted to the steering wheel surrounding the center of steering of the steering wheel via vibration damping parts, the vehicle steering wheel structure damping steering wheel vibration, wherein the vibration damping parts includes at least a first vibration damping part positioned upward from the center of steering and a second vibration damping part positioned downward from the center of steering with reference to a neutral position of the steering wheel and the spring constant or elastic modulus of the first vibration damping part is set lower than the spring constant or elastic modulus of the second vibration damping part.

An airbag module that serves as a damper mass mounted to the steering wheel surrounding the center of steering of the steering wheel via vibration damping parts, the vehicle steering wheel structure damping steering wheel vibration, wherein the vibration damping parts includes at least a first vibration damping part positioned upward from the center of steering and a second vibration damping part positioned downward from the center of steering with reference to a neutral position of the steering wheel and the spring constant or elastic modulus of the first vibration damping part is set lower than the spring constant or elastic modulus of the second vibration damping part.