WO2013118590A1

WO2013118590A1 - Airbag device and horn switch device

Info

Publication number: WO2013118590A1
Application number: PCT/JP2013/051482
Authority: WO
Inventors: 成一神山; 政利松尾
Original assignee: タカタ株式会社
Priority date: 2012-02-07
Filing date: 2013-01-24
Publication date: 2013-08-15
Also published as: JP5826658B2; JP2013159281A

Abstract

[Problem] To limit the generation of the strange noises that accompany sliding contact between the hook sections and the torsion springs. [Solution] The airbag device is provided with a substantially case-shaped retainer (22), lances (122) that protrude from the outside surface of the bottom wall of the retainer (22), and torsion springs (30) provided in the base section (14) of the steering wheel (12) as holders to hold the retainer (22) and in which the distance between the opposing ends can be changed by spring energization. The retainer (22) is held in the base section (14) so as to be movable in the axial direction of the hooks when the lances (122) are hooked by engagement with the torsion springs (30), and a shock absorbing sheet (34) is provided on the surface of the lances (122) above the area of contact with the torsion spring (30).

Description

Air bag device and horn switch device

The present invention relates to an airbag device and a horn switch device provided in a steering wheel.

There is known an airbag device that is displaceably provided on a steering wheel (see, for example, Patent Document 1). The airbag device includes a retainer assembled with an airbag, an inflator, and a module cover. A hook portion having a substantially arrowhead shape is provided on the outer surface of the bottom wall of the retainer, and this hook portion engages with the steering wheel. As a result, the retainer can be displaced along the axial direction of the hook portion in a retaining state.

In addition, this airbag device also serves as a switch operation unit operated by a driver or the like in order to sound the horn. Normally, the retainer is pushed up by the urging force of a coil spring provided so as to surround the hook portion. When the driver or the like presses the airbag device, the retainer is pushed down against the urging force, the contact for the horn switch is conducted, and the horn sounds.

JP 2007-050876 A

In the conventional technique, as described above, the retainer is normally pushed up by the bias of the coil spring. However, when vibration of the vehicle body occurs due to vehicle running or the like, the airbag device may be displaced in the axial direction of the hook portion. In this case, there is a possibility that the hook portion and the torsion spring are brought into sliding contact and abnormal noise is generated.

An object of the present invention is to provide an airbag device and a horn switch device that can suppress the generation of abnormal noise accompanying sliding contact between a hook portion and a torsion spring.

In order to achieve the above object, the first invention of the present application is an airbag device provided in a steering wheel, a retainer that is provided in a holding portion of the steering wheel and that stores an airbag on an open side, A cover that covers the airbag housed on the open side; a coil spring that urges the retainer in a direction away from the holding portion; and a protrusion that protrudes from one of the retainer and the holding portion. And a hook part inserted into a through hole provided in the other of the holding parts, and a hook part provided in the other of the retainer and the holding part and elastically engaged with the hook part inserted into the through hole. And a torsion spring for preventing the hook portion from detaching from the through hole, and less than the surface of the hook portion. Also characterized in that a cushioning material contact area at the time of engagement with the torsion spring.

The airbag device of the first invention of the present application is provided in the holding portion of the steering wheel. Moreover, the airbag apparatus is provided with the retainer which accommodates an airbag. And the hook part provided in one of the retainer and the holding part is inserted into the through hole provided in the other. At this time, the retainer is urged away from the holding portion by the coil spring, but the torsion spring is elastically engaged with the hook portion inserted into the through hole as described above. Accordingly, the hook portion is prevented from being detached from the through hole, and the retainer is elastically displaced with respect to the holding portion by the urging force of the coil spring.

In such an elastic holding state, the airbag device may be displaced along the biasing direction of the coil spring when vibration of the vehicle body occurs due to vehicle running or the like. In this case, the hook portion and the torsion spring are in sliding contact with each other, and abnormal noise is generated. Therefore, in the first invention of the present application, a cushioning material is provided at least in a contact range with the torsion spring on the surface of the hook portion. Thereby, the said sliding contact state can be relieve | moderated and abnormal noise generation | occurrence | production can be prevented.

According to a second invention, in the first invention, the hook portion is provided to protrude from a wall surface on the opposite side of the open side of the retainer, and is inserted into a through hole provided in the holding portion, and the torsion spring Is provided in the holding portion and elastically engages with the hook portion inserted into the through hole of the holding portion to prevent the hook portion from being detached from the through hole. .

As a result, the hook portion provided in the retainer is inserted into the through hole provided in the holding portion of the steering wheel, and then engaged with the torsion spring provided in the holding portion, and is held elastically displaceably. The generation of abnormal noise due to the sliding contact between the hook portion and the torsion spring can be prevented.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the hook portion is located on the inclined head portion provided on the protruding front end side, and is located on the proximal end side of the head portion, and is associated with the torsion spring. And the engaging member is provided on the head portion and the engaging portion.

By providing the cushioning material at the engaging portion of the hook portion, it is possible to reliably prevent the generation of abnormal noise from the portion where the hook portion and the torsion spring are in sliding contact.

As described above, in the third invention of the present application, after the hook portion having the inclined head portion on the distal end side and the engaging portion on the proximal end side is inserted into the through hole, the hook portion is engaged. The retainer is held by the steering wheel by engaging the torsion spring with the joint. In such a structure, at the time of manufacturing and assembling, the inclined head is inserted into the through hole while spreading the torsion spring against the elastic force of the torsion spring, and the head sufficiently penetrates the through hole. After that, the expanded torsion spring is restored in the direction opposite to the expanded direction, and the engagement is performed at the engagement portion located on the proximal side from the head.

Therefore, in addition to the sliding contact between the engaging portion of the hook portion and the torsion spring as described above, the sliding contact between the head and the torsion spring also occurs during assembly. In the third invention of the present application, in response to this, a cushioning material is provided not only on the engaging portion but also on the head portion. Thereby, the sliding contact between the hook portion and the torsion spring at the time of assembling can be eased.

The fourth invention is characterized in that, in the third invention, the cushioning material provided on the head and the cushioning material provided on the engaging portion are provided integrally.

As described above, by providing a cushioning material on the head portion of the hook portion, sliding contact between the head portion and the torsion spring during assembly can be eased. However, when the contact pressing force by the torsion spring is strong, the cushioning material provided on the head may be partially peeled off, for example. Therefore, in the fourth invention of the present application, a cushioning material for preventing sliding contact at the head and a cushioning material for preventing sliding contact at the engaging portion are integrally provided. Thereby, compared with the case where these two buffer materials are provided separately, said peeling can be made hard to occur.

A fifth invention is the above-mentioned fourth invention, wherein a groove is formed on the surface of the head,
The shock-absorbing material provided on the head is provided inside the groove.

Thereby, the pressing force received from the torsion spring by the cushioning material for preventing sliding contact at the head can be reduced, so that the above-described peeling can be further prevented.

In order to achieve the above object, a sixth invention of the present application is a horn switch device provided in a steering wheel, and is provided so as to be close to the fixed contact provided in a holding portion of the steering wheel and the holding portion. A movable contact support portion; a movable contact provided on the movable contact support portion so as to face the fixed contact; a cover capable of operating the movable contact support portion in the perspective direction; and the movable contact support portion. A coil spring urging in a direction away from the holding portion, and a protruding portion provided from one of the movable contact support portion and the holding portion, and a penetration provided in the other of the movable contact support portion and the holding portion. A hook portion inserted into the hole, and provided on the other of the movable contact support portion and the holding portion, and elastically engaged with the hook portion inserted into the through hole. A torsion spring for preventing the hook part from being detached from the through hole, and a cushioning material is provided at least in a contact range at the time of engagement with the torsion spring on the surface of the hook part. It is provided.

The horn switch device according to the sixth aspect of the present invention is provided in the holding portion of the steering wheel. Further, the horn switch device includes a movable contact support portion provided with a movable contact. And the hook part provided in one of the movable contact support part and the holding part is inserted into the through hole provided in the other. At this time, the movable contact support portion is urged away from the holding portion by the coil spring, but the torsion spring is elastically engaged with the hook portion inserted into the through hole as described above. ing. Accordingly, the hook portion is prevented from being detached from the through hole, and the movable contact support portion is held elastically displaceable with respect to the holding portion by the biasing force of the coil spring.

In such an elastic holding state, the horn switch device may be displaced along the biasing direction of the coil spring when the vehicle body is vibrated due to vehicle running or the like. In this case, the hook portion and the torsion spring are in sliding contact with each other, and abnormal noise is generated. Therefore, in the sixth invention of the present application, a cushioning material is provided at least in a contact range with the torsion spring on the surface of the hook portion. Thereby, the said sliding contact state can be relieve | moderated and abnormal noise generation | occurrence | production can be prevented.

According to the present invention, it is possible to suppress the generation of abnormal noise associated with the sliding contact between the hook portion and the torsion spring.

It is sectional drawing of the principal part of the steering wheel to which the airbag apparatus of one embodiment of this invention is applied. It is a top view of the principal part of a steering wheel. It is a disassembled perspective view of the principal part from the back side of a steering wheel. It is a perspective view from the back side of an airbag apparatus. The hook part applied to one embodiment of the present invention is shown, (A) is a perspective view of a hook part before grooving, (B) is a perspective view of a hook part in a grooving state, (C) is a buffer sheet It is a perspective view of the hook part of the pasting state. It is a side view of the hook part which shows the hook part applied to one embodiment of the present invention, and is a buffer sheet pasting state. The principal part structure which concerns on one embodiment of this invention is shown, (A) is sectional drawing of the principal part before hook part engagement, (B) is sectional drawing of the principal part of a hook part engagement state. It is a perspective view of the principal part of the hook part engagement state which concerns on one embodiment of this invention. It is sectional drawing of the principal part of the steering wheel to which the horn switch apparatus of one embodiment of this invention is applied.

Next, an airbag device according to an embodiment of the present invention will be described with reference to the drawings.

1 is a cross-sectional view of a main part of an airbag device according to the present embodiment, FIG. 2 is a plan view of the main part of a steering wheel according to the present embodiment, and FIG. 3 is a back side of the steering wheel according to the present embodiment. 4 is an exploded perspective view of the main part from FIG. 4, FIG. 4 is a perspective view of the main part from the back side of the airbag device according to the present embodiment, FIG. 5 shows a hook part applied to the present embodiment, and FIG. 5A is a perspective view of the hook portion before groove processing, FIG. 5B is a perspective view of the hook portion in the groove processing state, FIG. 5C is a perspective view of the hook portion with the buffer sheet attached, and FIG. It is a side view of the hook part which shows the hook part applied to one Embodiment, and a buffer sheet affixed state.

In the following description, unless otherwise specified, the vertical and horizontal directions indicate directions that coincide with the vertical and horizontal directions of the vehicle body, based on the time when the vehicle is moving straight ahead.

In FIG. 1, a steering wheel 12 having a known metal frame structure is provided with a base portion 14 (holding portion), and an airbag device 20 is held on the base portion 14.

As shown in FIGS. 2 and 3, the steering wheel 12 has spoke

portions

14L, 14R, and 14D extending from the base portion 14 to the left and right and downward, respectively, when the vehicle body is in a straight traveling operation state. And the wheel rim 16 of the outer periphery is provided in the front-end | tip of each spoke

part

14L, 14R, 14D. The wheel rim 16 is covered with a cover 18.

On the other hand, the base portion 14 is formed with a plurality of (three in this embodiment) through holes 14a. Further, on the upper surface side of the base portion 14, a torsion spring 30 provided with a spring property is arranged so that two opposing wires can be approached and separated by bending the wire in a substantially U shape. . The torsion spring 30 is held so as to allow elasticity (approach and separation of two opposing wires) as a spring by the cooperation of the pressing piece 32 fixed to the base portion 14 and the base portion 14. ing. The holding piece 32 has a through hole 32a at a position corresponding to the through hole 14a. At this time, one of the two wires of the torsion spring 30 is exposed in the through hole 14a and the through hole 32a (see FIG. 2). In the present embodiment, a plurality of (two in this embodiment) guide holes 14b are formed in the base portion 14 in addition to the through holes 14a. Further, the pressing piece 32 may be formed integrally with the base portion 14 or may be fixed to the base portion 14 separately.

The airbag device 20 includes a substantially casing-shaped retainer 22 that is open on one side (upper side in FIG. 1), an airbag 24 that is housed in the retainer 22 in a folded state from the opened side, and an airbag 24. An inflator 26 that supplies pressure gas for inflating, and a synthetic resin module cover 28 (cover) mounted on the retainer 22 so as to cover the airbag 24 are provided. The module cover 28 is fixed to the retainer 22 so as to cover the end of the open side that is the one side of the retainer 22 (in other words, so as to cover the airbag 24). When the airbag 24 is inflated and deployed, the module cover 28 is cleaved by the inflating force of the airbag 24 so as to allow the inflation.

As shown in FIG. 4, the retainer 22 is disposed so as to face the one side of the base portion 14 (in other words, disposed on the lower side in FIG. 1 opposite to the one side in the entire retainer 22). 22a, a peripheral wall 22b erected from the peripheral edge of the bottom wall 22a to the one side, a plurality of (as many as the guide holes 14b) guide shafts 22c protruding from the outer surface (bottom surface) of the bottom wall 22a, and the bottom wall A plurality of lances 122 (the same number as the through holes 14a) protruding rearward from the outer surface (bottom surface) of 22a.

The guide shaft 22c is provided in the vicinity of the middle in the vertical direction of the left and right side edges of the bottom wall 22a. Further, the guide shaft 22c engages with the guide hole 14b, and defines the movement displacement direction of the retainer 22, in other words, the approach and separation directions of the airbag device 20 with respect to the base portion 14. In addition, when the movement displacement along the axial direction of a hook part can fully be prescribed | regulated by the lance 122, you may abbreviate | omit the guide shaft 22c suitably.

The lances 122 are respectively provided at three locations near the left and right corners of the upper portion of the bottom wall 22a and near the middle of the lower portion in the left and right direction. In addition, the lance 122 is positioned on the base end side (bottom wall 22a side) of the head portion 122a and the inclined head portion 122a provided on the protruding front end side, and is engaged to engage with the torsion spring 30. Part 122b, and support part 222c located further to the base end side than engagement part 122b. The head 122a is projected so as to project in a direction intersecting with the advancing / retreating direction of the retainer 22 (the normal direction of the bottom wall 22a). Further, after forming a groove 123 in the head 122a of the lance 122 as shown in FIG. 5 (B) with respect to the base material of the head 122a in the state shown in FIG. As shown in C), a buffer sheet 34 (buffer material) having elasticity made of, for example, a non-woven fabric (or soft resin) is provided (see also FIG. 6). At this time, the groove 123 is formed so as to straddle substantially the entire width of the surface of the head portion 122a and to be at least the size of the contact range with the torsion spring 30. The buffer sheet 34 includes a first sheet portion 34a provided in the groove 123, and a second sheet portion 34b formed integrally with the first sheet portion 34a and provided in the engaging portion 122b. It is configured (see FIG. 5C). The groove 123 may be formed simultaneously with the lance 122 when the retainer 22 is formed, or may be cut by separate post-processing.

On the other hand, a coil spring 36 is provided to urge the retainer 22 in a direction away from the base portion 14 so as to surround the lance 122. The coil spring 36 normally pushes up the retainer 22, and the airbag device 20 resists the bias when the airbag device 20 is pressed to sound the horn horn (hereinafter referred to as “horn operation”). Accordingly, the horn switch contact 42 on the retainer 22 side (movable contact; see FIG. 1) and the horn switch contact 40 on the steering wheel 12 side (fixed contact; see FIG. 1) are brought into contact with each other to turn on (ON). Then, the horn horn sounds.

Next, a procedure for attaching the airbag device 20 to the steering wheel 12 in the above configuration will be described with reference to FIGS. FIG. 7 shows this embodiment, FIG. 7 (A) is a cross-sectional view of the main part before engaging the hook part, FIG. 7 (B) is a cross-sectional view of the main part in the hook part engaging state, and FIG. It is a perspective view of the principal part which shows embodiment and a hook part engagement state. As already described, the base portion 14 of the steering wheel 12 holds the torsion spring 30 that engages the lance 122 at a position facing each lance 122. In the torsion spring 30, one of the two

wire portions

30a and 30b facing each other is exposed to the through hole 14a and the through hole 32a. Accordingly, as shown in FIG. 7A, when the lance 122 is inserted from the through hole 32a side to the through hole 14a side against the biasing force of the coil spring 36, the above-mentioned head 122a having a tapered shape is tapered. The wire portion 30a of the torsion spring 30 comes into contact. Then, due to the inclined shape of the head portion 122a, the wire portion 30a approaches the left side in FIG. 7A toward the other wire portion 30b opposite to the wire portion 30a.

Thereafter, when the head 122a passes the position of the torsion spring 30 by further pushing the lance 122 as shown in FIG. 7B, the wire portion 30a is on the right side in FIG. 7B opposite to the above. It returns to and engages with the engaging portion 30. Thereby, the retainer 22 (in other words, the airbag apparatus 20) is held by the base part 14 in a state of being prevented from being detached (see also FIG. 8). In this state in which the airbag device 20 is prevented from being detached, the airbag device 20 can be displaced along the axial direction of the lance 122 (protruding direction; vertical direction in FIGS. 7A and 7B), and is normally coil spring 36. The state of being pushed up by the energizing of is maintained.

Next, the function and effect of the airbag device 20 of the present embodiment configured as described above will be described. As described above, in the present embodiment, the lance 122 provided in the retainer 22 that houses the airbag 24 is inserted into the through hole 14 a provided in the base portion 14 of the steering wheel 12. At this time, the retainer 22 is urged away from the base portion 14 by the coil spring 36, but the torsion spring 30 is elastically engaged with the lance 122 inserted into the through hole 14a. Accordingly, the lance 122 is prevented from being detached from the through hole 14a, and the retainer 122 is held elastically displaceable with respect to the base portion 14 by the urging force of the coil spring 36.

However, in such an elastic holding state, when vibration of the vehicle body occurs due to vehicle running or the like, the airbag device 20 moves in the urging direction of the coil spring 36 (vertical direction in FIGS. 7A and 7B). May be displaced along. In this case, the lance 122 and the torsion spring 30 may be slidably contacted to generate abnormal noise. In the present embodiment, as described above, by providing the buffer sheet 34 at least in the contact area with the torsion spring 30 on the surface of the lance 122, the sliding contact state is alleviated and abnormal noise generation is prevented. be able to.

In the present embodiment, in particular, by providing the buffer sheet 34 in the engagement portion 122b of the lance 122, it is possible to reliably prevent the generation of abnormal noise from the portion where the lance 122 and the torsion spring 30 are in sliding contact. .

As described above, in the airbag device 20 of the present embodiment, as described above, the lance 122 having the inclined head portion 122a on the distal end side and the engaging portion 122b on the proximal end side passes therethrough. After being inserted into the hole 14a, the retainer 122 is held on the steering wheel 12 by the torsion spring 30 engaging with the engaging portion 122b. At the time of manufacturing and assembling, the inclined head portion 122a is inserted into the through hole 14a while expanding the torsion spring 30 against the elastic force of the torsion spring 30, and the head portion 122a sufficiently extends the through hole 14a. After penetrating, the torsion spring 30 that has been spread out is restored in a direction opposite to the direction in which it is spread out, so that the engagement portion 122b is engaged. At this time, in addition to the sliding contact between the engaging portion 122b of the lance 122 and the torsion spring 30 as described above, the sliding contact between the head 122a and the torsion spring 30 also occurs during assembly. In the present embodiment, in response to this, the buffer sheet 34 is disposed not only on the engaging portion 122b but also on the head portion 122a. Thereby, the sliding contact between the lance 122 and the torsion spring 30 during the assembly can be eased.

However, when the buffer sheet 34 is provided on the head 122a, for example, when the contact pressing force by the torsion spring 30 is strong, the buffer sheet 34 provided on the head 122a may be partially peeled off as it is. . Therefore, in the present embodiment, the cushion sheet, in which the first sheet portion 34a for preventing sliding contact at the head portion 122a and the second sheet portion 34b for preventing sliding contact at the engaging portion 122b are integrated. 34 is provided. Thereby, compared with the case where these two sheet | seat parts are provided separately, said peeling can be made hard to occur.

In the present embodiment, in particular, the first sheet portion 34a provided in the head portion 122a is provided in the groove 123 formed in the head portion 122a. Thereby, since the pressing force received from the torsion spring 30 by the buffer sheet 34 (first sheet portion 34a) for preventing sliding contact with the head 122a can be reduced, the above-described peeling can be further prevented. .

In the above description, the structure in which the lance 122 provided in the retainer 22 is inserted into and engaged with the through hole 14a provided in the base portion 14 of the steering wheel 12 is described as an example. That is, a lance similar to the lance 22 is provided on the steering wheel 12 side, and this lance is inserted into and engaged with a through hole similar to the through hole 14a provided on the retainer 22 side. The invention may be applied. In this case, the torsion spring is provided on the retainer 22 side. In this case, the same effect as described above is obtained.

In the above description, the case where the present invention is applied to the structure of the airbag device 20 provided in the steering wheel 12 has been described as an example, but the present invention is not limited thereto. That is, the present invention may be applied to a horn switch device that does not include an airbag.

FIG. 9 is a cross-sectional view of an essential part showing an embodiment of the horn switch device of the present invention, and corresponds to FIG. Components equivalent to those in FIG. 1 and the like are denoted by the same reference numerals, and description thereof will be omitted as appropriate. As shown in FIG. 9, the horn switch device 220 of this embodiment is illustrated with respect to the horn switch contact (fixed contact) 40 provided on the base portion (holding portion) 14 of the steering wheel 12 and the base portion 14. A movable contact support 222 having a structure equivalent to that of the retainer 22, and a horn switch contact (movable) provided on the movable contact support 222 so as to face the horn switch contact 40. Contact) 42, a pad member (cover) 228 configured to be equivalent to the module cover 28, fixed to the movable contact support portion 222 and capable of operating the movable contact support portion 222 in the perspective direction, and the movable The coil spring 36 that urges the contact support portion 222 in a direction away from the base portion 14, the movable contact support portion 222, and the base. One of the portions 14 is provided so as to protrude from the movable contact support portion 222 in this example, and the through hole 14a provided in the other of the movable contact support portion 222 and the base portion 14 (the base portion 14 in this example). The lance (hook part) 122 to be inserted, the movable contact support part 222 and the base part 14 are provided on the other (the base part 14 in this example) and elastically applied to the lance 122 inserted into the through hole 14a. The torsion spring 30 for engaging and preventing the lance 122 from being detached from the through hole 14a. And the structure shown in above-mentioned FIG. 4 etc. WHEREIN: The said buffer sheet (buffer material) 34 is provided in the contact range at the time of engagement with the torsion spring 30 among the surfaces of the lance 122 at least.

The horn switch switch 220 has the same effect as described above. That is, as described above, the lance 122 provided in the movable contact support portion 222 is inserted into the through hole 14 a provided in the base portion 14 of the steering wheel 12. At this time, the movable contact support portion 222 is biased away from the base portion 14 by the coil spring 36, but the torsion spring 30 is elastically engaged with the lance 122 inserted in the through hole 14a. ing. Accordingly, the lance 122 is prevented from being detached from the through hole 14a, and the movable contact support portion 222 is held elastically displaceable with respect to the base portion 14 by the biasing force of the coil spring 36.

However, in such an elastic holding state, the horn switch device 220 may be displaced along the urging direction (vertical direction in FIG. 9) of the coil spring 36 when vibration of the vehicle body occurs due to vehicle running or the like. is there. In this case, the lance 122 and the torsion spring 30 may be slidably contacted to generate abnormal noise. Therefore, as described above, by providing the buffer sheet 34 at least in the contact area with the torsion spring 30 on the surface of the lance 122, the sliding contact state can be relaxed and the generation of abnormal noise can be prevented.

In addition to those already described above, the methods according to the above embodiment and other modifications may be used in appropriate combination.

Other than that, although not exemplified one by one, the present invention is implemented with various modifications within a range not departing from the gist thereof.

12 Steering wheel 14 Base part (holding part)
20 Airbag Device 22 Retainer 28 Module Cover (Cover)
30 Torsion spring 34 Buffer sheet (buffer material)
122 Lance (hook part)
220 Horn switch device 222 Fixed contact support 228 Pad member (cover)

Claims

An airbag device (20) provided on a steering wheel (12),
A retainer (22) which is provided in a holding part (14) of the steering wheel (12) and houses an airbag (24) on the open side;
A cover (28) covering the airbag (24) stored on the open side of the retainer (22);
A coil spring (36) for urging the retainer (22) in a direction away from the holding portion (14);
A hook that protrudes from one of the retainer (22) and the holding portion (14) and is inserted into a through hole (14a) provided in the other of the retainer (22) and the holding portion (14). Part (122);
Of the retainer (22) and the holding part (14), the hook part (122) is elastically engaged with the hook part (122) provided in the other and inserted into the through hole (14a). ) From the through hole (14a) to prevent the torsion spring (30);
Have
The airbag device (20), wherein a cushioning material (34) is provided at least in a contact range at the time of engagement with the torsion spring (30) on the surface of the hook portion (122).
In the airbag device (20) according to claim 1,
The hook part (122)
The retainer (22) is provided so as to protrude from the wall surface (22a) opposite to the open side, and is inserted into a through hole (14a) provided in the holding portion (14).
The torsion spring (30)
The hook portion (122) is elastically engaged with the hook portion (122) inserted in the through hole (14a) of the holding portion (14), and provided in the holding portion (14). An airbag device (20) characterized by preventing separation from the through hole (14a).
In the airbag device (20) according to claim 1 or 2,
The hook part (122)
An inclined head (122a) provided on the protruding tip side;
An engagement portion (122b) that is located on the proximal end side of the head (122a) and engages the torsion spring (30);
With
The cushioning material (34)
An airbag device (20), wherein the airbag device (20) is provided on the head (122a) and the engaging portion (122b).
In the airbag device (20) according to claim 3,
An airbag device (20) characterized in that a cushioning material (34a) provided on the head (122a) and a cushioning material (34b) provided on the engaging portion (122b) are integrally provided. .
The airbag device (20) according to claim 4,
A groove (123) is formed on the surface of the head (122a),
The airbag device (20), wherein the cushioning material (34a) provided on the head (122a) is provided inside the groove (123).
A horn switch device (220) provided on the steering wheel (12),
A fixed contact (40) provided on a holding portion (14) of the steering wheel (12);
A movable contact support portion (222) provided so as to be capable of being separated from the holding portion (14);
A movable contact (42) provided on the movable contact support portion (222) so as to face the fixed contact (40);
A cover (228) capable of operating the movable contact support portion (222) in the perspective direction;
A coil spring (36) for urging the movable contact support portion (222) in a direction away from the holding portion (14);
A through hole (14a) provided to protrude from one of the movable contact support part (222) and the holding part (14) and provided to the other of the movable contact support part (222) and the holding part (14). Hook part (122) inserted into
The movable contact support portion (222) and the holding portion (14) are provided on the other side and elastically engaged with the hook portion (122) inserted into the through hole (14a), so that the hook A torsion spring (30) for preventing separation of the portion (122) from the through hole (14a);
Have
A horn switch device (220), wherein a cushioning material is provided at least in a contact range when engaged with the torsion spring (30) on the surface of the hook portion (122).