JPS60151174A - Steering wheel - Google Patents

Abstract

PURPOSE:To make a rim light weight and simplify its assembling by covering through putting a rim core bar between rim core bar fitting portions of a rim body. CONSTITUTION:Rim core bar fitting portions 17 and 18 which are about in the shape or a half circle are formed along a center portion of a flat joining surfaces 15 and 16 of rim bodies 12 and 13. An engaging concave portion 19 is formed in an inside portion of a rim body 12 at a position corresponding to the other rim body 13, and an engaging click 20 which engages to the engaging portion 19 is arranged projectedly to an inside edge portion of the rim body 13. And a rim core bar 10 is fitted into the rim core bar fitting portion 17 of the ring-shaped rim body 12, and the other rim body 13 is rotated upon the rim body 12 through a thin hinge portion 14. Then the rim core bar 10 is fitted into the rim core bar fitting portion 18 of the other rim body 13 and at the same time, the engaging click 20 is engaged to the engaging concave portion 19, joining surfaces 15 and 16 of both rim bodies 12 and 13 make contact to each other, thereby the rim core bar 10 is covered.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a steering wheel for an automobile or the like.

[Technical background of the invention and its problems]

Conventionally, in general, the outer part 9111 of the rim core of the rim part of a steering wheel of an automobile or the like has been covered with synthetic resin, but it is being considered to make the rim part hollow in order to reduce weight. .

As such, for example,
No. 23, US Pat.
The first cover is fixed in place. Therefore, when assembling, the separately manufactured upper and lower covers are combined, making it difficult to accurately align the end faces of each cover and connect them to the rim core metal, and there is a step on the outside of the mating surfaces. parts etc. are likely to occur.

Furthermore, as shown in the specification and drawings of U.S. Pat. This is not desirable because it is not constant as it shrinks or shrinks, and the digging condition becomes unstable.

[Purpose of the invention]

The object of the present invention is to improve the above-mentioned points and provide a steering wheel that is hollow, light and heavy, can be easily assembled, and can be provided at low cost.

[Summary of the invention]

The present invention has an annular rim core metal, a hollow shape having a semicircular cross section that covers the rim core metal from above and below, and a rim core metal sandwiching portion formed in the center of the mutual joint surfaces. It has upper and lower rim bodies made of synthetic resin, one rim body having an annular shape, and the other rim body being divided into a plurality of parts each having a thin hinge on the outside of the one annular rim body. One annular rim body is connected to the other rim body through a thin hinge part, and a rim core is attached to the rim core metal clamping part of both rim bodies. It is something that holds money.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to Figs. 1 to 6.

In Figure 1, (1) shows the steering wheel J, and this steering wheel (11 shows the boss part (2)
, this boss part + 21 spoke parts on both sides) 3
), and consists of an I-shaped rim part (4) provided at the outer end of this spoke part (3). Then, the boss part (
2) and a front cover (5) is provided on the spoke portion (3), and a Bono button (6) is provided on the center portion of the boss portion (2).

In Fang 2 and Fang 3, (7) is a thought, and this core material (7) is a cylindrical boss (8) provided in the above-mentioned boss part +21, and this boss (8) is welded etc. from K. A spoke core metal (9) provided on the spoke part (3) with its inner end integrally connected, and a spoke core metal (9) integrally connected to the outer end of the spoke core metal (9) by # contact or the like. The rim portion (4) has an annular rim core metal (lω).

U is an annular rim provided on the outside of the rim core metal (1ω), and as shown in Figures 2 to 214, this rim U is integrally formed by blow molding of synthetic resin, and the cross section is approximately half-shaped. One of the upper and lower rim bodies has a circular hollow shape and has a circular fu shape (2), and the other upper and lower rim bodies have an almost semicircular hollow cross section and are divided into four equal parts (↓). 131
A part of each other rim body t131 has a thin hinge portion (1
41 for each foot interval.

In addition, an approximately semicircular rim core holding part (1714181) is formed in the center of the flat joint surface (15) (t61) of both rim bodies (I2IOJ).Furthermore, one rim body Each of the other rim bodies (engaging four-part surround at the position corresponding to 131) is formed in the inner part B111 of u21, and the inner tlil of each other rim body α3) is formed.
An engaging claw (, 'tl
l is provided protrudingly.

Then, one annular rim body (12 rim core metal clamps t
NL (Fit the rim core metal (1) on one part, then rotate the other rim body +I:(+ onto one rim body via the 141 Each other rim body t13
) Fit the rim core metal 00 into the rim core metal clamping part of the rim core metal holder part of ), and each engaging recess rib us K each one thread pairing claw (2 ■, both If,) IJ mu body t121 +13)
] and the base (1, 51, 6) are brought into contact with each other, and the rim core metal holding part (1η (1) rarely holds and covers the rim core metal (101).

Note that the two rim bodies 1121f+31 are joined and fixed by using the engaging recess (19) and the 1 series mating claw (2) (regardless of the force, adhesive,
High frequency welding, thermal welding, etc. may also be used.

In addition, if you want to further improve the appearance quality of the old rim,
As shown in Figure 5, it is advisable to wrap a cover ■υ of leather or the like around the outer periphery of the rim U.

In addition, in manufacturing the above rim (Ill), it can be easily obtained by general blow molding, but for example, as shown in Figures 2 and 6 and Figure 7, a pair of split molds c
It is sufficient to sandwich a wide parinnre ω between the two parts and perform blow molding.

〔Effect of the invention〕

According to the present invention, since the rim core metal is clamped and covered by the rim core metal clamping portions of both rim bodies, the rim is hollow and has an eaves beam, and can be assembled easily and at low cost. Moreover,
Since both rim bodies are connected through the thin hinge part, there is no possibility that the two parts will shift, and the appearance can be improved.

Also, since both rim bodies ~i'cM are hollow in a semicircular shape and each have four facets, when the rim core metal is clamped and joined to these joint faces, the cross section is The semi-circular rim has rib-like connecting surfaces in the diametrical direction, which improves strength and ensures safety in the event of a collision.

[Brief explanation of the drawing]

Figure 2.1 is a front view showing one embodiment of the steering wheel of the present invention, Figure 2.2 is a cross-sectional view of the H-H section of Figure 1,
Figure 6 is an exploded back view of Figure 1, Figure 1=4 is a perspective view of a part of Figure 6, Figure 5 is a perspective view of part 7Pl showing another embodiment,
Figure 6 is a perspective view showing the molded state of the rim, and Figure 7 is a sectional view of a portion thereof. (1) @-steering wheel, till... rim core metal, (121 (131... rim body, round/lI hard meat part, (15) σ61-/joint surface, (171 (18+)
Fist core metal clamping part.

Claims (1)

[Claims] (11) An annular rim core metal; Upper and lower rim bodies made of synthetic resin are formed, the one rim body having an annular shape, and the other rim body being divided on the mantissa side, and each having a thin wall outside the one annular rim body l111. A steering wheel characterized by being connected via a hinge part.