JPS6181253A - Steering wheel - Google Patents

Abstract

PURPOSE:To assemble quickly through simple push-in of wheel pad by providing front and rear hook metals on an absorbent holding metal then hooking the front metal to the front end of boss plate while hooking the rear metal to a receiving metal at the rear in the boss section. CONSTITUTION:The boss section 2 of steering wheel body is fixed to the upper end of steering shaft then a wheel pad 1 is applied from above the boss section 2. In other word, the wheel pad 1 is positioned above the boss section 2 to lower the front hook metal 35 of lower bracket 30 while guiding in a rib 25 in lower cover 24 at the boss section and to hook said metal 25 to the front edge of boss plate 21. Thereafter, the rear section of wheel pad 1 is pushed in to ride the rear hook metal 34 of lower bracket 30 over the back face of receiving metal 26 at the boss 2 side thus to stop the hooked portion 34a in an engaging hole 27 and to complete assembling of wheel pad 1.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an automobile steering wheel in which a brittle plastic impact energy absorber (hereinafter referred to as E/A body) is disposed in the boss portion. Technology〉 In steering wheels in which an E/A body made of brittle plastic is disposed inside the boss, the E/A body is conventionally mounted inside a box-shaped cover pad using mounting brackets, and wheels with a built-in E/A body Place the pad on the boss plate of the boss part,
The wheel pad is fastened and fixed to the boss part -L by screws inserted from the back side of the boss part.

<Problems to be Solved by the Invention> Generally speaking, steering wheels are assembled on a steering shaft on an automobile assembly line with the wheel pad removed, and then the lead wires of the horn switch are assembled. After the connections are made, the wheel pad containing the E/A body is placed on the boss part of the steering wheel body, and screws are inserted from the back side of the boss part to fasten and fix the wheel pad to the boss part.

Therefore, when assembling a steering wheel, the worker must insert and tighten the screws from the back side of the steering wheel body, which is already attached to the driver's seat of the car, in an awkward position. There was a problem that J work was difficult, workability deteriorated, and work efficiency was hindered.

Means for Solving the Problems> In order to solve the above problems, the present invention is configured as follows.

That is, the steering wheel of the present invention is a steering wheel in which an E/A body made of brittle plastic acid is disposed in a wheel pad on a boss portion, and the wheel pad holds the E/A body and has a front hook. An E/A holding bracket with a metal fitting and a rear hooking bracket is attached, a receiving bracket is attached to the inner rear part of the boss side, and the wheel pad is attached to the rear hooking bracket by hooking the front hooking bracket to the front end of the boss plate. 1 on the boss part by hooking it on the receiving metal fitting inside the boss part.
I have configured it so that you can listen to it.

<Example> Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a plan view of the wheel pad l of an automobile steering wheel, FIG. 2 is a plan view of the boss portion 2, and FIG.
The figure shows a longitudinal sectional view of the wheel pad l and the boss portion in a separated state. The upper part of the wheel pad l is covered by a cover part 11 made of soft synthetic resin, and an upper bracket 12 made of sheet metal is installed in the cover part 11 so as to hold the upper part of the E/A body, which will be described later. A horn switch plate 13 is disposed above the horn switch 12. A hard plastic resin inserter is attached to the soft synthetic resin cover part 11) 1
4 is inserted to maintain the shape, and also a resin insert)
A nut member (not shown) is buried in the appropriate position in 14, and the upper bracket 12 is screwed using this nut member. Reference numeral 15 denotes an E/A body made of brittle plastic such as hard polyurethane foam, which is inserted between the upper bracket (12) and the lower bracket (30) and held within the wheel pad l.

As shown in Fig. 3, the lower bracket 30 includes a main body part 31 whose both sides are bent in three directions, and a front part 30 which is fixed to the front bent end of the main body part 31 and has screw holes at both ends. 32 and
It consists of a rear mounting part 33 that is fixed to the rear bent end of the main body part 31 and has screw holes at both ends, and a rear hooking fitting 34 that is fixed to the rear mounting part 33 and has downward hook parts at two places. Two front hook fittings 35 are provided at the lower front end of the portion 31. The main body part 31 and the rear hooking fitting 34 are made of a spring steel plate so as to have spring elasticity, and the front attachment part 32 and the rear attachment part 33 are made of sheet metal, usually a steel plate.

In addition, the rear hook 34 has a hook portion 34a that is small and bent inward at its tip so that it can be hooked into a long retaining hole of a receiving fitting, which will be described later. It is bent quite deeply inward so that it can be hooked onto the front edge of the plate while sliding horizontally. Note that the lower bracket (30) with the above structure constitutes an absorber holding fitting, but is not limited to the fitting having the structure shown in FIG. It is formed according to the shape of the section bracket 12. The lower bracket 30 configured in this way is assembled to the upper bracket 12 in the wheel pad l with the EZA body 5 in the center, and is attached to the upper bracket 12 using the front attachment part 32 and the rear attachment part 33.
It is screwed to the upper bracket 12 using regular screws.

On the other hand, the boss portion 2 is constructed as shown in FIGS. 2 and 4, with a boss 22 fixed to the center of the boss plate 21 and spoke core metals 23 fixed to both sides. A lower cover 24 made of synthetic resin is fixed with screws. A plurality of ribs 25 are erected on the inner front part of the lower cover 24 facing the front edge of the boss plate 21 for reinforcement and guidance, and when the wheel pad 1 is fitted into the boss part 2,
The front hooking fitting 35 in the wheel pad 1 is guided to the correct hooking position. Further, in the center of the rear part of the lower cover 24, a receiving metal fitting 26 is fixed at a position one level higher with screws inserted from the back surface of the lower cover, and the receiving metal fitting 26 has a rising part bent in three directions on the plate-shaped main body. , two retaining elongated holes 27 are formed here.

-6= The boss part 2 of the steering wheel body configured as described above is attached to one end of the steering shaft of the automobile, and in this state, the wheel pad l is placed over the -L of the boss part 2. It is fitted.

That is, as shown in FIG.
The front hook 35 is connected to the groove 2 in the boss lower cover 24.
5, push the wheel pad l into one of the boss parts 2, and then push the wheel pad l
Slide it backwards (towards the left in Figure 4). As a result, the front latch X35 of the wheel pad 1 is accurately latched onto the front edge of the boss plate 21 on the boss portion 2 side, and is securely fixed with spring elasticity. Then, in this state, by pushing the rear part of the wheel pad l (left side in Figure 4),
The rear hooking fitting 34 of the lower bracket 30 passes over the back of the receiving fitting 26 on the boss portion 2 side, and its hook portion 34a is elastically hooked into the engagement elongated hole 27, completing the assembly of the wheel pad I. Therefore, wheel pad l is the fifth
As shown in the figure, the front hook 35 and the rear hook 34
As explained above, according to the steering wheel of the present invention, the E/A body made of brittle plastic is fitted into the wheel pad easily and reliably on the boss portion 2 at the four locations. The absorber holding bracket to be held is provided with a front hooking bracket and a rear hooking bracket, the front hooking bracket is hooked to the front end of the boss plate, and the rear hooking bracket is configured to be hooked to a receiving bracket provided at the rear inside the boss portion. did. Therefore, the wheel pad can be easily assembled in a short time by simply pushing the wheel pad onto the steering wheel. This improves work efficiency by improving work efficiency, such as fixing screws from the back side in an awkward position.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, in which Fig. 1 is a plan view of the wheel pad, Fig. 2 is a plan view of the boss section, Fig. 3 is a perspective view of the lower bracket, and Fig. 4 is a plan view of the wheel pad and the boss section. FIG. 5 is an exploded sectional view, and FIG. 5 is an assembled sectional view. ■...Wheel pad, 2...Boss part, 15...
EZA body, 21... Boss plate, 26... Receiving metal fitting, 30... Lower bracket, 34... Rear hanging metal fitting, 35... Front hanging metal fitting. Patent applicant

Claims (1)

[Claims] A steering wheel in which an impact energy absorber made of brittle plastic is disposed within a wheel pad on a boss portion, the wheel pad holding the impact energy absorber and having a front hook and a rear hook. An absorber holding fitting is attached, a receiving fitting is attached to the inner rear part of the boss side, the front hooking fitting is hooked to the front end of the boss plate, and the rear hooking fitting is hooked to the receiving fitting at the inner rear part of the boss part. A steering wheel characterized in that the wheel pad is assembled onto a boss portion by stopping the wheel pad.