JP2557750Y2 - Steering wheel pad - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steering wheel pad provided with an airbag device and a horn button device, wherein each device is fixed to a pad body using rivets.

[0002]

2. Description of the Related Art A conventional steering wheel and its pad are shown in FIGS. As shown in FIG. 9, a pair of left and right horn button devices 33 is disposed on a pad body 32 disposed substantially at the center of a ring portion 31 of the steering wheel.

As shown in FIG. 9 (a sectional view taken along the line DD in FIG. 8), the pad body 32 has an outer pad 34 made of a soft resin material and an inner pad 35 made of a hard resin material. The pad 35 has a rectangular annular frame 3
5a is integrally formed. The airbag device 44 has an inflator 37 and an airbag 38, and the device 44 is attached to the bag holder 36 by bolts 39 and nuts 40. On the other hand, below the horn button device 33, a button plate 41 is attached.

The frame portion 3 of the inner pad 35
The bag holder 36 and the button plate 41 are in contact with both sides of the frame portion 35a so as to sandwich 5a. Furthermore, an attachment plate 42 for attaching the pad body 31 to the steering wheel side is in contact with the bag holder 36. And the frame part 35a,
The bag holder 36, the button plate 41, and the mounting plate 42 are fastened together by rivets 43.

[0005]

However, the conventional steering wheel pad has the following problems when the horn button device 33 is fixed.

That is, in the above-described conventional configuration, at the place where the button plate 41 is riveted, the riveted thickness is the thickness of the frame portion 35a, the thickness of the bag holder 36, the thickness of the mounting plate 42, and This is the sum of the thicknesses of the button plates 41. Therefore, the rivet tightening thickness is increased by the thickness of the button plate 41 in the above-described portion, as compared with the portion where the button plate 41 is not riveted.

As a result, only the portion where the button plate 41 is to be riveted is required to have a standard larger than that of a rivet that is normally used, or a special rivet that is not standardized is required. It is also conceivable that the bag holder 36 and the button plate 41 are separately riveted. However, this requires a large number of rivets, which causes problems in terms of cost and work efficiency.

The present invention has been made in view of the above problem, and its purpose is to suppress the increase in the rivet tightening thickness at the horn button mounting portion and to easily perform rivet tightening. An object of the present invention is to provide a steering wheel pad.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a pad body having a frame portion arranged so as to cover an airbag device, and a frame of the pad body having the airbag device. An airbag attachment member for attaching to the portion, a horn button attachment member for attaching the horn button device to the frame portion of the pad body, and a steering attachment member for attaching the frame portion of the pad body to the steering wheel side. The airbag mounting member is brought into contact with an inner surface of a frame portion of the pad body, the horn button mounting member is brought into contact with an outer surface of the frame portion, and the steering mounting member is brought into contact with the airbag mounting member. Or abut on one of the horn button mounting members,
In a steering wheel pad in which the respective members are fastened and fixed with rivets, a through hole is provided in a member of the airbag mounting member or the horn button mounting member that is in contact with the steering mounting member, and The gist of the invention is that a contact portion that abuts the frame portion through the through hole and that can accommodate a head of the rivet on the steering attachment member side is bent.

[0010]

According to the above construction, the contact portion of the steering mounting member comes into contact with the frame portion through the through hole, and rivets are fastened between the contact portion and a member on the opposite side of the frame portion. You. Further, the member provided with the through hole is sandwiched and fixed between the frame portion and the steering attachment member. As a result, the rivet tightening thickness is the sum of the thickness of the frame portion, the thickness of the steering mounting member, and the thickness of either the airbag mounting member or the horn button mounting member. That is, the thickness of the member provided with the through hole does not contribute to the rivet tightening thickness.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; FIG. 5 is a plan view showing an airbag steering wheel according to the present embodiment.
The pad body 1 is a ring portion 2a of the steering wheel 2.
, And a pair of left and right horn button devices 3 are disposed on the pad body 1. At a substantially center of the pad body 1, a horizontal inflation line L is formed.

Next, the detailed structure of the pad will be described with reference to FIGS.
Explanation will be given based on FIG. Among these figures, FIG. 6 is a view of the pad body 1 viewed from the rear side, and FIGS.
7 is a sectional view taken along line AA of FIG. 6, a sectional view taken along line BB of FIG. 6, and a sectional view taken along line CC of FIG. 6, respectively. For convenience of explanation,
1, 3, and 4, the front side (driver side) of the pad main body 1 is described as facing upward.

The pad body 1 has an outer pad 4 made of a soft resin material and an inner pad 5 made of a hard resin material. The inner pad 5 is integrally formed with a square annular frame portion 5a. The frame portion 5a constitutes a skeleton of the pad body 1, and has a uniform thickness and a predetermined value or more. An inflation line L is formed substantially at the center of both pads 4 and 5, and a notch 5b (shown in FIGS. 1 and 3) and a hinge at the base of frame 5a in inner pad 5. A portion 5c (shown in FIG. 4) is formed.
When an airbag 11 to be described later is inflated, the pads 4 and 5 break at the inflation line L and expand outward with the hinge 5c as a fulcrum.

The airbag device 13 has the inflator 7 and the airbag 11. A metal bag holder 6 as an airbag mounting member has a mounting hole 6 in the center thereof.
c comprises a transparent upper plate 6a, and a side plate 6b bent downward at the outer peripheral edge thereof to form a square ring. The inflator 7 is inserted from below into the mounting hole 6c of the bag holder 6, and the upper surface of the flange portion 7a formed on the outer periphery of the inflator 7 is connected to the upper plate 6a of the bag holder 6.
Is in contact with the lower surface. In the upper part of the inflator 7,
An airbag 11 is provided so as to cover the inflator 7. The airbag 11 is normally folded and accommodated, and is inflated upward by nitrogen gas generated from the inflator 7 when an impact occurs.

On the line AA in FIG. 6 (see FIG. 1),
The lower end of the airbag 11 is supported on the upper surface of the upper plate 6 a of the bag holder 6 by an annular retainer 10 extending in the outer peripheral direction of the inflator 7. The lower ends of the retainer 10 and the airbag 11 are connected to the flange 7a.
At the same time, it is fixed to the upper plate 6a by bolts 8 and nuts 9.

On the BB line and the CC line of FIG. 6 (see FIGS. 3 and 4), the lower end of the airbag 11 is supported on the upper surface of the upper plate 6a of the bag holder 6 by the retainer 10. ing. The lower ends of the retainer 10 and the airbag 11 are fixed to the upper plate 6a by blind rivets 12.

On the line CC of FIG. 6 (see FIG. 4), the side plate 6b of the bag holder 6 is in contact with the frame portion 5a of the inner pad 5, and the side plate 6b is connected via the retainer 20. It is fixed to the frame part 5a by a blind rivet 21. The thickness of the retainer 20 is
The thickness is substantially equal to the thickness of the bag holder 6. The rivet tightening thickness at this point is the sum of the thickness of the frame portion 5a, the thickness of the bag holder 6, and the thickness of the retainer 20.

Further, in FIG. 6, a mounting plate 22 as a steering mounting member is provided in the frame portions 5a located on the left and right sides. In addition, mounting plate 2
2 has a thickness substantially equal to the thickness of the bag holder 6. As shown in FIG. 3, the mounting plate 22 has a bent portion 23 extending downward, and a screw portion 24 is formed in the bent portion 23. And this screw part 24 is an attachment part on the steering wheel 2 side.

As shown in FIG. 1, in the horn button device 3, a movable contact 16
Is provided, and a fixed contact 17 is opposed to the movable contact 16.
Is provided. The movable contact 16 is a compression coil spring 1
8 is always urged upward. Then, by pressing the button portion 15 downward against the urging force of the compression coil spring 18, the movable contact 16 and the fixed contact 17 come into contact with each other, and the horn can be sounded. Further, a button plate 19 having a substantially L-shaped cross section is attached to the lower part of the horn button device 3 as a horn button attachment member. The thickness of the button plate 19 is substantially equal to the thickness of the bag holder 6 and the mounting plate 22.

Here, the riveted portion on the line AA of FIG. 6 will be described with reference to the exploded sectional view of FIG. As shown in FIG. 2, the mounting plate 22, the frame portion 5a,
The button plate 19 has rivet holes 22a, 5d, and 19a, respectively, according to the outer diameter of the blind rivet 25.
Is formed in the side plate 6b of the bag holder 6, and a through hole 6d having a diameter larger than each of the rivet holes 22a, 5d, and 19a is formed. Also, mounting plate 2
2 is provided with a contact portion 22b bent toward the bag holder 6 side.

The bag holder 6 is mounted on the frame 5a.
The inner surface (the left side in FIG. 1) of the frame portion 5 is in contact with the outer surface (the right side in FIG. 1) of the frame portion 5a.
Further, the mounting plate 22 is in contact with the inside of the bag holder 6. Then, the rivet holes 22a, 5d,
The head 25a is formed on the left side of the rivet 25 in the drawing by inserting the blind rivet 25 into the 19b and crimping, and each member is riveted. At this time, the head 25a formed on the blind rivet 25 can be stored in the recess of the contact portion 22a.

As a result, the bag holder 6 is sandwiched and fixed between the frame portion 5a and the mounting plate 22.
That is, the thickness of the bag holder 6 does not affect the riveted thickness, and the riveted thickness is
, The thickness of the mounting plate 22, and the thickness of the button plate 19. Therefore, at the place where the rivet is fastened across the frame portion 5a, the button plate 1
The rivet tightening thickness of the 9 mounting locations (located on the left side of FIG. 6) is almost the same as the other locations (located on the upper and lower sides of FIG. 6), and rivets of the same standard can be used at each location. Becomes As a result, in the present embodiment, the rivet can be easily set without using a special rivet, as a conventional problem.

The present invention is not limited to the above embodiment, but can be embodied in the following modes.
That is, in the above embodiment, the mounting plate 22 is in contact with the bag holder 6, but as shown in FIG. 7, the mounting plate 22 is in contact with the button plate 19, and the button plate 19 is provided with the through hole 19 b. To form. In this case, the thickness of the button plate 19 does not contribute to the rivet tightening thickness, and is the sum of the thickness of the frame portion 5a, the thickness of the bag holder 6, and the thickness of the mounting plate 22. As a result, similarly to the above-described embodiment, the rivet tightening thickness at the place where the button plate 19 is attached can be made substantially equal to the rivet tightening thickness at other places.

[0024]

As described in detail above, according to the present invention, the rivet can be easily riveted while suppressing an increase in the rivet tightening thickness at the horn button mounting portion.

[Brief description of the drawings]

FIG. 1 is a sectional view taken along line AA of FIG.

FIG. 2 is an exploded cross-sectional view of a button plate attachment location.

FIG. 3 is a sectional view taken along line BB of FIG. 6;

FIG. 4 is a sectional view taken along line CC of FIG. 6;

FIG. 5 is a plan view showing a steering wheel.

FIG. 6 is a bottom view of the pad body.

FIG. 7 is a sectional view showing another embodiment.

FIG. 8 is a plan view showing a conventional steering wheel.

FIG. 9 is a sectional view taken along line DD of FIG. 8;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Pad main body, 2 ... Steering wheel, 3 ... Horn button device, 5a ... Frame part, 6 ... Bag holder as airbag attachment member, 6d ... Through hole, 13 ... Airbag device, 19 ... Horn button attachment member Button plate, 19b through hole, 22: mounting plate as a steering mounting member, 22b: abutting portion, 25: blind rivet, 25a: head.

Claims (1)

(57) [Scope of request for utility model registration] 1. A pad body (1) having a frame portion (5a) disposed so as to cover and surround an airbag device (13); and a frame portion of the pad body (1) by connecting the airbag device (13) to the frame portion. An airbag attachment member (6) for attaching to the (5a); a horn button attachment member (19) for attaching the horn button device (3) to the frame portion (5a) of the pad body (1); (2) The pad body (1) on the side
A steering attachment member (22) for attaching the frame portion (5a) of the airbag, and the airbag attachment member (6) is attached to the pad body (1).
The horn button mounting member (19) is brought into contact with the inner surface of the frame portion (5a), the horn button mounting member (19) is brought into contact with the outer surface of the frame portion (5a), and the steering mounting member (22) is mounted on the airbag. A member (6) or a horn button mounting member (19), which is brought into contact with the horn button mounting member (19), and the respective members are fastened and fixed with rivets (25); Alternatively, of the horn button mounting member (19), a through hole (6d, 19b) is provided in a member that abuts on the steering mounting member (22), and the steering mounting member (22) includes:
The frame portion (5) is inserted through the through hole (6d, 19b).
A pad for a steering wheel, wherein a contact portion (22b) that abuts on a) and that can receive a head (25a) of the rivet (25) on the side of the steering mounting member (22) is bent. .