JPS58202159A - Steering wheel - Google Patents

Abstract

PURPOSE:To prevent the generation of a strain upon low and high temperature as well as a sharp edge upon receiving a shock by a method wherein a finisher is provided with a long hole, in which the finisher can be moved into horizontal direction, at the wheeler side end thereof. CONSTITUTION:When the temperature of the steering wheel becomes high or low, the elongation or contraction of the finisher 11 becomes large since there is a difference between the linear expansion coefficients of the spoke finisher 11 made of a synthetic resin and a core 2 made of a metal, however, the elongation and/or contraction can be absorbed by the long hole 16 provided at the supporting part 12. When the shock is applied, the finisher is deformed following the core 2 but the supporting part 12 can be moved into a horizontal direction and the rotating direction thereof, therefore, the deformation of the finisher 11 may be limited to a small scale and the generation of the sharp edge may be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a steering wheel for an automobile, and particularly to a steering wheel whose spoke finishers are made of synthetic resin.

Conventional steering wheels include, for example, those shown in Figs. It consists of a spoke core metal 2 such as an iron rod, and a *5 body cover 3 on the X5 metal λ.

The spoke finisher 1 is attached to the body cover 3 via a placket integrated with the core metal 2, and the center part /a is attached to the screw l.
In addition, the end portion /b of the boss portion B111l is extended to the inside of the horn pad j and fixed to the boss plate 7 in order to improve its appearance. Also, spokes, core metal 2
The spoke parts sf are bent 2b and 2C inside the boss #B to make them look thinner. Recessed portion 6 of grip portion 6 of rim R
Pag/c of the spoke finish 7-year 1 is engaged with a.

However, in such a conventional steering wheel, the center part /a of the spoke finisher 1 and the end part /1) of the boss B are fixed, so the synthetic resin More finishers
aseFI between L and spoke core metal 2 made of metal material!
Due to the difference in the Rm number, there is a risk that the fins/ya/ may be lifted and deformed, or may shrink and be printed. Also, an arrow? If the impact is applied in a different direction (FIG. 5), the deformation of the core bar 2 may not be followed and separation may occur.

q and to in FIGS. 5 and 6 indicate these cracks.

This invention was made in view of these conventional problems, and includes providing an elongated hole at the end of the spoke finisher on the body side so that the finisher can move horizontally. The present invention will be described below with reference to the drawings.

Figures R to 1/1 are diagrams showing an embodiment of the present invention. Components that are the same as or equivalent to those shown in FIGS. 1 to 7 will not be given the same reference numerals, and redundant explanations will be omitted.

First, to explain the structure, // is a finisher having a center part /a and an end part /cf that is engaged with the recess 6a of the grip part 6, and l is a support inserted into the horn pad j. Department. The support fiJ,t has an elongated hole t6f that is slidably supported by the pin 3 which is rotatably supported in the straight back hole 1da of the flange 13 formed on the boss plate 7. . The bottle/S is made of synthetic resin and has a through hole i.
It is engaged with a.

Next, I will explain how it works.

The steering wheel becomes hot or cold J
si stand, synthetic resin spoke finisher//,
Because there is a difference in linear expansion coefficient with core metal 2 of gold such as iron,
Although the shrinkage of the spoke fins increases by one inch, the elongated holes 6 provided in the support end 2 can absorb the expansion and contraction as shown by the solid and broken lines in FIG.

Also, if the impact is severe as shown in Figure S, the 12th
As shown in the figure, the spoke finisher/l is 6 gold 2
However, since the support part 12 can move in the horizontal direction and can also move in the rotational direction,
It is possible to press the spokes to a small deformation, preventing sharp edges caused by printing etc. D).

As explained above, according to this invention, ■ low;
A spoke finisher surface that is free of distortion even at high temperatures can be obtained. ■ Even if an impact is applied, sharp edges due to cracking can be prevented. ■ If you use resin pins, you can easily install the finisher.

[Brief explanation of drawings]

Figure 1 is a front view of a conventional steering wheel;
Figures 2 and 3 are explanatory cross-sectional views taken along the Todoroki line and the Shoulder line in Figure 1, respectively; The spoke finisher in FIGS. 2 and 3 - a broken view Dd; FIG. ■-■ line, ■-■ Iwao cross-sectional explanatory diagram, Figure 10 is an explanatory diagram of X-X# cross-section in Figure 9, Figure 1/Figure is an explanatory diagram of arrow XI in Figure 9, Figure 12 is an explanatory diagram of FIG. 9 is an explanatory diagram of the action of FIG. 9; S...spoke part, l...spoke finisher
1λ...Spoke core metal, 3...Body cover, B
...Boss part, L co... Support part. 1・゛;-Li Book 9 Picture Book Yugeki Bodhisattva 1 Picture Book E Area

Claims (1)

[Claims] In a steering wheel consisting of a spoke finisher whose spoke portions are made of synthetic resin, a spoke core metal disposed on the back surface and fixed to a boss, and a body cover that extends around the core metal, one end of the spoke finisher is attached to the A steering wheel that has a supporting part that can move relative to the boss.