JPS61257359A - Vehicle steering wheel - Google Patents

Vehicle steering wheel

Info

Publication number
JPS61257359A
JPS61257359A JP9882185A JP9882185A JPS61257359A JP S61257359 A JPS61257359 A JP S61257359A JP 9882185 A JP9882185 A JP 9882185A JP 9882185 A JP9882185 A JP 9882185A JP S61257359 A JPS61257359 A JP S61257359A
Authority
JP
Japan
Prior art keywords
fragile
boss
spoke
steering wheel
arms
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP9882185A
Other languages
Japanese (ja)
Other versions
JPH0247385B2 (en
Inventor
Suzuaki Hongou
本郷 鈴昭
Minoru Niwa
実 丹羽
Takahiro Hashiba
羽柴 隆博
Mitsuru Harada
充 原田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyoda Gosei Co Ltd
Original Assignee
Toyoda Gosei Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyoda Gosei Co Ltd filed Critical Toyoda Gosei Co Ltd
Priority to JP9882185A priority Critical patent/JPS61257359A/en
Priority to CA000508560A priority patent/CA1289852C/en
Priority to US06/860,795 priority patent/US4709944A/en
Publication of JPS61257359A publication Critical patent/JPS61257359A/en
Publication of JPH0247385B2 publication Critical patent/JPH0247385B2/ja
Granted legal-status Critical Current

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  • Steering Controls (AREA)
  • Vibration Dampers (AREA)

Abstract

PURPOSE:To prevent stress concentration in the hems of fragile sections in a steering wheel, by setting an obtuse angle to the crossing part between each two adjacent fragile sections in the vicinity of spokes, and by moderately connecting the hems of both fragile sections with each other. CONSTITUTION:Three U-like bent fragile sections 15 are radially arranged at equal intervals in an annular space formed between a boss 3 and a spoke attaching section 7. Further, the angle of crossing sections between the fragile sections 15 is made to be obtuse. Further, the hems of each adjacent fragile sections are moderately connected, and a coupling member 9 integrally incorporated with a boss attaching section 5 is arranged.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 この発明は、セルファライニング機構を具備した車両用
ステアリングホイールに関する。
DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a vehicle steering wheel equipped with a self-lining mechanism.

〈従来の技術〉 従来、上記タイプのステアリングホイールとしては、例
えば実開昭60−9764号公報にみられるように(第
6〜8図参照)、3木のスポーク11に対して環状のボ
ス取付部5に5本の脆弱腕部15を具備した連結体9が
ボス3とリム13φスポーク11組立体に配されていた
<Prior art> Conventionally, as for the above-mentioned type of steering wheel, an annular boss is attached to three wooden spokes 11, as seen in, for example, Japanese Utility Model Application Publication No. 60-9764 (see Figs. 6 to 8). A connecting body 9 having five fragile arm portions 15 in the portion 5 was arranged on the boss 3 and the rim 13φ spoke 11 assembly.

そしてこのステアリングホイールのリム13に加重が作
用するとき(第7図)、脆弱腕部15の塑性変形によっ
てリム13面は作用線と略直交するように傾動する(第
8図、以下セルファライニング作用という)。
When a load is applied to the rim 13 of the steering wheel (Fig. 7), the rim 13 surface tilts approximately perpendicular to the line of action due to plastic deformation of the fragile arm portion 15 (Fig. 8, hereinafter referred to as self-lining action). ).

しかし、一方で、デザイン上の要求から、2本スポーク
タイプのステアリングホイールの需要が大きくなってい
る。
However, on the other hand, due to design requirements, there is a growing demand for two-spoke type steering wheels.

〈発明が解決しようとする問題点〉 上記2本スポークタイプのステアリングホイールに、従
来の5本の脆弱腕部15を具備した連結体9を適用しよ
うとすると(第6図参照)、特に両スポーク11近傍の
2つの脆弱腕部15が交叉する部位のへりに応力集中が
起き易いため、該部位に面取りや焼なましを施して耐久
性を持たせる必要があった。つまり、スポーク11近傍
の2つの脆弱腕部15が交叉する部位の加工精度を高め
ないと充分な耐久性が維持できなかった。よって、加工
工数の増加となっていた。
<Problems to be Solved by the Invention> When trying to apply the conventional connecting body 9 equipped with five fragile arms 15 to the above-mentioned two-spoke type steering wheel (see FIG. 6), especially when both spokes Since stress concentration tends to occur at the edge of the area where the two weak arms 15 intersect in the vicinity of 11, it was necessary to chamfer or anneale this area to make it durable. In other words, sufficient durability could not be maintained unless the machining accuracy of the area where the two fragile arms 15 intersect in the vicinity of the spoke 11 was improved. Therefore, the number of processing steps has increased.

本発明はかかる問題点を解決し、2本スポークタイプの
みならず3本以上のスポーク本数のステアリングホイー
ルにおいても、脆弱腕部のスポーク近傍の交叉部位に高
加工精度を必要とせず、加工工数のかからない車両用ス
テアリングホイールを提供することを目的とする。
The present invention solves these problems and eliminates the need for high machining precision at the intersections near the spokes of the fragile arms, reducing the number of machining steps not only for two-spoke steering wheels but also for steering wheels with three or more spokes. The purpose of the present invention is to provide a steering wheel for a vehicle that does not cause friction.

く問題点を解決するための手段〉 本発明は、上記目的を達成するために以下の構成とした
車両用ステアリングホイールである。
Means for Solving the Problems> In order to achieve the above object, the present invention is a vehicle steering wheel having the following configuration.

リム・スポーク組立体に連結されるスポーク取付部とポ
スとの間に形成される環状空間に、前記ポスと連結され
るポス取付部と、前記スポーク取付部に連結されてボス
取付部から放射状に分配される複数本の屈曲した脆弱腕
部とを備える連結体が配設され、リムに加重が作用した
時、脆弱腕部の塑性変形によりリム面が傾動して作用線
と略直交するように構成されたステアリングホイールに
おいて、スポーク取付部に取付けられているスポーク近
傍の、2つの脆弱腕部がなす交叉角を鈍角とし、かつ、
両脆弱腕部のへりをなだらかに連結して形成されている
構成である。
In an annular space formed between a spoke mounting part connected to the rim and spoke assembly and a post, a post mounting part connected to the spoke mounting part and a boss mounting part connected to the spoke mounting part extending radially from the boss mounting part are provided. A connecting body is provided with a plurality of distributed bent fragile arms, and when a load is applied to the rim, the rim surface tilts due to plastic deformation of the fragile arms so as to be substantially perpendicular to the line of action. In the steering wheel configured, the intersecting angle formed by the two fragile arms near the spokes attached to the spoke attachment portions is an obtuse angle, and
It is formed by gently connecting the edges of both fragile arms.

〈実施例〉 以下、本発明の諸実施例を図(第1〜5図)に基づいて
説明する。従来例と同一のものには同一の符号を附して
説明を略した。また、セルファライニングの作用は第7
.8図に示す従来例と同じである。
<Examples> Hereinafter, various examples of the present invention will be described based on the drawings (FIGS. 1 to 5). Components that are the same as those in the conventional example are given the same reference numerals and explanations are omitted. In addition, the action of Selfa lining is the seventh
.. This is the same as the conventional example shown in FIG.

第1実施例、(第1〜3図) 本実施例は、2本スポークタイプのステアリングホイー
ル1に3木の脆弱腕部15が具備された連結体9を適用
したものである。
First Example (FIGS. 1 to 3) In this example, a two-spoke steering wheel 1 is provided with a connecting body 9 having three fragile arms 15.

本実施例のステアリングホイール1は、以下のように構
成されている。ポス3とスポーク取付部7との間に形成
される環状空間に、3木のU字形に屈曲された(第2図
参照)脆弱腕部15が放射状均等に分配されて、その脆
弱腕fi15がなす交叉角を鈍角とし、かつ、隣り合う
脆弱腕部どおしのへりをなめらかに連結してボス取付部
5と一体成形された連結体9が配設されている。そして
この連結体9のボス取付部5をポス1に溶接し、各脆弱
腕部15の他端部をスポーク11をはさむようにして、
平板状のスポーク取付部7の下面に溶接することによっ
て、リム13・スポークll連結体とポス3とを連結し
ている。
The steering wheel 1 of this embodiment is configured as follows. In the annular space formed between the post 3 and the spoke attachment part 7, three fragile arms fi15 bent into a U-shape (see Fig. 2) are evenly distributed radially. A connecting body 9 is provided which is integrally molded with the boss attachment part 5 by making the intersecting angle obtuse and smoothly connecting the edges of adjacent weak arm parts. Then, the boss attachment part 5 of this connecting body 9 is welded to the post 1, and the other end of each fragile arm part 15 is sandwiched between the spokes 11,
The rim 13/spoke 11 connection body and the post 3 are connected by welding to the lower surface of the flat spoke attachment portion 7.

上記において、脆弱腕部15をスポーク取付部7の下面
に溶接しであるが、脆弱腕部15をスポーク取付部7の
上面に溶接してもよい、この場合、U字形の屈曲が上に
突出するので、ホーンパッド(図示せず)と屈曲上端部
との当接を防止しなければならない、一方、上記脆弱腕
部15をスポーク取付部7の下面に溶接する場合は、U
字形の屈曲下端部とコラムカバー(図示せず)との接触
に注意し、かつ、リム13面が傾動したとき、ポス3と
の当接具合も調節する必要がある(第8図参照)。
In the above, the fragile arm portion 15 is welded to the lower surface of the spoke attachment portion 7, but the fragile arm portion 15 may be welded to the upper surface of the spoke attachment portion 7. In this case, the U-shaped bend protrudes upward. Therefore, it is necessary to prevent the horn pad (not shown) from coming into contact with the bent upper end.
It is necessary to pay attention to the contact between the bent lower end of the letter and the column cover (not shown), and also to adjust the degree of contact with the post 3 when the rim 13 surface is tilted (see FIG. 8).

以上、第1実施例は、もちろんセルファライニング作用
を奏し、スポーク11近傍の隣り合う2つの脆弱腕部1
5がなす交叉角を鈍角とし、かつ、両脆弱腕部15のへ
りをなだらかに連結して形成しているので、該部位での
応力集中が生じ難くなっている。よって該部位に高加工
精度が要求されなくなり、焼なまし等の手間を省くこと
ができる。また、本実施例は、脆弱腕部15が3本(従
来は5本)であるから、スポーク取付部7へ溶接する工
数も削減される。
As described above, the first embodiment naturally exhibits the self-lining effect, and the two adjacent fragile arms 1 near the spokes 11
5 is an obtuse angle, and the edges of both fragile arms 15 are smoothly connected, making it difficult for stress concentration to occur at these parts. Therefore, high machining accuracy is no longer required for the part, and the labor of annealing etc. can be saved. Further, in this embodiment, since there are three fragile arms 15 (compared to five in the past), the number of man-hours for welding to the spoke attachment portions 7 is also reduced.

そしてまた、上記脆弱腕部15は通常2段階の曲げ加工
等でU字形に屈曲して形成されるが、特に、ポス取付部
5側の屈曲をゆるやかにすれば、そこに加工硬化が生じ
難くなることと、ボス取付部5と脆弱腕部15とのへり
のつなぎがなだらかになることから好適である。
Furthermore, the fragile arm portion 15 is usually bent into a U-shape by a two-step bending process, but if the bending on the post attachment portion 5 side is made gentler, work hardening is less likely to occur there. This is preferable because the edge of the boss attachment portion 5 and the fragile arm portion 15 have a smooth edge.

第3図は、第1実施例の変形態様を示し、図中下側の脆
弱腕部15の中央を長手方向に切欠いてスリン)17と
し、脆弱腕部15を4本具備した連結体9としたもので
ある。これも第1図で示す連結体9と同じ作用を奏する
FIG. 3 shows a modified form of the first embodiment, in which the center of the weak arm portion 15 on the lower side of the figure is cut out in the longitudinal direction to form a sulin) 17, and a connecting body 9 having four weak arm portions 15 is formed. This is what I did. This also has the same effect as the connecting body 9 shown in FIG.

第2実施例(第4図) 本実施例は、3本スポークタイプのステアリングホイー
ル1に3木の脆弱腕部15が具備された連結体9を適用
したものである。
Second Embodiment (FIG. 4) In this embodiment, a three-spoke steering wheel 1 is provided with a connecting body 9 having three fragile arms 15.

本実施例では、各スポーク11のスポーク取付部7との
連結のそれぞれを、脆弱腕部15がはさむようにしたた
め、連結体9は第1実施例から180°回転させた形態
でスポーク取付部7に配設され、各脆弱腕部15間を鈍
角に形成し、しかも、その部位のへりをなだらかに形成
したので、作用は第1実施例と同じである。
In this embodiment, since the connection between each spoke 11 and the spoke attachment portion 7 is sandwiched between the fragile arm portions 15, the connecting body 9 is rotated 180 degrees from the first embodiment and the spoke attachment portion 7 is Since the fragile arm portions 15 are arranged at obtuse angles, and the edges of these portions are gently formed, the operation is the same as in the first embodiment.

第3実施例(第5図) 本実施例は、2本スポークタイプのステアリングホイー
ル1に4本の脆弱腕部15が具備された連結体9を適用
したものである。
Third Embodiment (FIG. 5) In this embodiment, a connecting body 9 provided with four fragile arms 15 is applied to a two-spoke steering wheel 1.

これは、第1実施例の第1図中上側2本の脆弱腕部15
を等分に分割して3本としたものである。従って連結体
9をスポーク取付体7に溶接する手間が脆弱腕部15の
1本分増加するが、スポーク11の溶接近傍の隣り合う
2つの脆弱腕部15がなす交叉角を鈍角とし、かつ、両
脆弱腕部15間のへりをなだらかに形成しであるので、
第1実施例と同じ作用を奏する。
This corresponds to the upper two weak arms 15 in FIG. 1 of the first embodiment.
It is divided into three equal parts. Therefore, the effort required to weld the connecting body 9 to the spoke attachment body 7 increases by one fragile arm 15, but the intersecting angle formed by the two adjacent fragile arms 15 near the welding of the spoke 11 is an obtuse angle, and Since the edge between both fragile arm portions 15 is formed gently,
It has the same effect as the first embodiment.

以上、本発明において、通常のステアリングホイール1
のスポーク11を2本又は3本有するタイプの場合は、
脆弱腕部15の本数は3本又は4木が好適である。なぜ
なら、これ以上脆弱腕部15の本数を増加しても、スポ
ーク11近傍の2木の脆弱腕部15がなす交叉角を鈍角
とすることができず、溶接の手間もかかるからである。
As described above, in the present invention, the normal steering wheel 1
In the case of a type having two or three spokes 11,
The number of fragile arms 15 is preferably three or four. This is because even if the number of fragile arms 15 is increased further, the intersecting angle formed by the two fragile arms 15 near the spokes 11 cannot be made obtuse, and welding will take more effort.

尚、図からも明らかなように、スポーク11の溶接近傍
の隣り合う脆弱腕部15がなす交叉角が鈍角に形成され
、かつ、そのへりがなだらかに形成されていれば脆弱腕
部15の本数や、大きさを任意に変更してもよい。
As is clear from the figure, if the intersecting angle between the adjacent weak arms 15 in the vicinity of the weld of the spoke 11 is obtuse, and the edges are gently formed, the number of weak arms 15 will be reduced. Alternatively, the size may be changed arbitrarily.

〈発明の効果〉 本発明は、以上説明してきたように、スポーク近傍の2
つの隣り合う脆弱腕部がなす交叉部位を鈍角とし、かつ
、両脆弱腕部のヘリをなだらかに連結して連結体が形成
しであるから、該へりの部位で応力集中が生じ難くなっ
た。よって該へりの部位を高い加工精度で形成する必要
がなくなり、加工工数の削減が可能となる。
<Effects of the Invention> As explained above, the present invention provides two
Since the intersecting portions formed by two adjacent fragile arms are at an obtuse angle, and the edges of both fragile arms are gently connected to form a connected body, stress concentration is less likely to occur at the edges. Therefore, it is no longer necessary to form the edge portion with high processing accuracy, and the number of processing steps can be reduced.

【図面の簡単な説明】[Brief explanation of the drawing]

図は、ステアリングホイール、特に連結体の構成を示し
、第1図は本発明の第1実施例を示す平面図、第2図は
同じく第1実施例の断面図(第1図中のI−I断面表示
線)、第3図は第1実施例の変形態様を示しリム・スポ
ーク組立体を省略した平面図、第4図は第2実施例を示
す平面図、第5図は第3実施例の平面図、第6図は従来
例を示す平面図、第7図は加重が作用する前の側面図。 第8図は加重が作用した後の側面図である。 1・・・ステアリングホイール、 3・・・ボス、 5・・・ボス取付部、 7・・・スポーク取付部、 9・・・連結体、 11・・・スポーク、 13・・・リム、 15・・・脆弱腕部。 特  許  出  願  人 第2図      \1 1715b M’+
The figures show the structure of the steering wheel, particularly the connecting body, and FIG. 1 is a plan view showing a first embodiment of the present invention, and FIG. 2 is a cross-sectional view of the first embodiment (I-I in FIG. 3 is a plan view showing a modification of the first embodiment with the rim and spoke assembly omitted, FIG. 4 is a plan view showing the second embodiment, and FIG. 5 is a plan view of the third embodiment. FIG. 6 is a plan view of the conventional example, and FIG. 7 is a side view before load is applied. FIG. 8 is a side view after the load is applied. DESCRIPTION OF SYMBOLS 1... Steering wheel, 3... Boss, 5... Boss attachment part, 7... Spoke attachment part, 9... Connecting body, 11... Spoke, 13... Rim, 15... ...Weak arm. Patent applicant Figure 2 \1 1715b M'+

Claims (1)

【特許請求の範囲】 リム・スポーク組立体に連結されるスポーク取付部とボ
スとの間に形成される環状空間に、前記ボスと連結され
るボス取付部と、前記スポーク取付部に連結されて前記
ボス取付部から放射状に分配される複数本の屈曲した脆
弱腕部とを備える連結体が配設され、リムに加重が作用
した時、前記脆弱腕部の塑性変形によりリム面が傾動し
て作用線と略直交するように構成されたステアリングホ
ィールにおいて、 前記スポーク取付部に取付けられているスポーク近傍の
隣り合う2つの前記脆弱腕部がなす交叉角を鈍角とし、
かつ、両脆弱腕部のへりをなだらかに連結して前記連結
体を形成することを特徴とする車両用ステアリングホィ
ール。
[Scope of Claims] In an annular space formed between a spoke attachment part connected to the rim and spoke assembly and the boss, a boss attachment part connected to the boss and a boss attachment part connected to the spoke attachment part are connected to the boss. A connecting body is provided with a plurality of bent fragile arms distributed radially from the boss attachment portion, and when a load is applied to the rim, the rim surface tilts due to plastic deformation of the fragile arms. In a steering wheel configured to be substantially perpendicular to the line of action, an intersecting angle formed by two adjacent fragile arms near the spokes attached to the spoke attachment portion is an obtuse angle;
A steering wheel for a vehicle, characterized in that the connecting body is formed by gently connecting the edges of both fragile arm portions.
JP9882185A 1985-05-09 1985-05-09 Vehicle steering wheel Granted JPS61257359A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP9882185A JPS61257359A (en) 1985-05-09 1985-05-09 Vehicle steering wheel
CA000508560A CA1289852C (en) 1985-05-09 1986-05-07 Steering wheel for vehicles
US06/860,795 US4709944A (en) 1985-05-09 1986-05-08 Steering wheel for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9882185A JPS61257359A (en) 1985-05-09 1985-05-09 Vehicle steering wheel

Publications (2)

Publication Number Publication Date
JPS61257359A true JPS61257359A (en) 1986-11-14
JPH0247385B2 JPH0247385B2 (en) 1990-10-19

Family

ID=14229971

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9882185A Granted JPS61257359A (en) 1985-05-09 1985-05-09 Vehicle steering wheel

Country Status (1)

Country Link
JP (1) JPS61257359A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61122972U (en) * 1985-01-22 1986-08-02

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61122972U (en) * 1985-01-22 1986-08-02

Also Published As

Publication number Publication date
JPH0247385B2 (en) 1990-10-19

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