JPH03284475A - Steering wheel - Google Patents

Steering wheel

Info

Publication number
JPH03284475A
JPH03284475A JP8537290A JP8537290A JPH03284475A JP H03284475 A JPH03284475 A JP H03284475A JP 8537290 A JP8537290 A JP 8537290A JP 8537290 A JP8537290 A JP 8537290A JP H03284475 A JPH03284475 A JP H03284475A
Authority
JP
Japan
Prior art keywords
boss
plate
projection part
insertion hole
welding
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.)
Pending
Application number
JP8537290A
Other languages
Japanese (ja)
Inventor
Atsushi Nagata
篤 永田
Suzuaki Hongou
本郷 鈴昭
Takanori Tsubouchi
隆憲 坪内
Tetsuya Takamori
高森 哲也
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 JP8537290A priority Critical patent/JPH03284475A/en
Publication of JPH03284475A publication Critical patent/JPH03284475A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To simplify a positioning job as well as to improve the coupling strength by having a projection part, made up of forming the outer circumferential form of a boss into a noncircle, almost fitted in the inert hole of a boss plate, while making a part of the taper surface of an outer circumferential surface of the projection part of an inner circumferential surface of the insert-through hole contact with an insert hole or an edge of the projection part, and welding the contact parts together. CONSTITUTION:A boss part B being set up in the center of a ring part R of a steering wheel W is constituted of providing a boss 11 and a boss plate 12 to be welded to this boss. In this case, at the boss 11, there is provided a projection part 13, forming an outer circumferential form centering on an installing hole 11a into a hexagon, on the top face, and an outer circumferential surface of this projection part 13 is formed into a taper surface 14 so as to make an external form of the projection part 13 larger toward the lower part. On the other hand, in the boss plate 12, there is provided an insert-through hole 12a, where the projection part 13 of the boss 11 is formed into a fittable hexagon, in the center, and when the projection part 13 of the boss 11 is fitted thereinto in a state of before being welded, it is formed into such a size as contacting nearly with the midway of the taper surface 14 of the projection part 13. The adjacent contact part between them is used as a weld part and the boss 11 and the boss plate 12 are joined together by means of resistance welding.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 この発明は、ボスとボスプレートとを抵抗溶接により接
合させている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 steering wheel in which a boss and a boss plate are joined by resistance welding.

〈従来の技術とその課題〉 従来、ステアリングホイールの各芯金を抵抗溶接により
接合することは、特開昭59−89285号公報等で知
られている。
<Prior art and its problems> Conventionally, joining each core metal of a steering wheel by resistance welding is known from Japanese Patent Application Laid-Open No. 59-89285 and the like.

そして、抵抗溶接を利用して、ボスとボスプレートとを
接合する場合には、例えば第5・6図に示すように行な
っている。
When the boss and the boss plate are joined using resistance welding, this is done, for example, as shown in FIGS. 5 and 6.

すなわち、ステアリングシャフト10を装着させる装着
孔1aとステアリングシャフト10を押通させる挿通孔
2aとを一致させて、ボス1上方にボスプレート2を配
置させ、ボスプレート2の下面から下方へ突出する複数
の溶接用突起3をボス1の上面に圧接させて溶接してい
た。
That is, the boss plate 2 is arranged above the boss 1 by aligning the mounting hole 1a into which the steering shaft 10 is mounted and the insertion hole 2a into which the steering shaft 10 is pushed, and the plurality of holes projecting downward from the lower surface of the boss plate 2. The welding protrusion 3 was brought into pressure contact with the upper surface of the boss 1 for welding.

そして、ナツト9を利用してステアリングホイールをス
テアリングシャフト10に連結させた後、溶接用突起3
付近の相互の溶接部位が万一剥離しても、ボス1に対し
てポスプレート2が相対回転しないよう、ボス1には凹
部1bが形成され、ボスプレート2にはボス1の凹部1
bに嵌挿される凸部2bが形成され、両者が回転方向に
対して係合されるように構成されている。
After connecting the steering wheel to the steering shaft 10 using the nut 9, the welding protrusion 3
In order to prevent relative rotation of the post plate 2 with respect to the boss 1 even if the mutual welding parts in the vicinity should peel off, the boss 1 is formed with a recess 1b, and the boss plate 2 is provided with a recess 1b of the boss 1.
A convex portion 2b is formed to be fitted into the convex portion 2b, and the two are configured to be engaged with each other in the rotational direction.

しかし、ボス1とボスプレート2とに相対回転防止用の
凹凸部1b・2bが形成されてしAると、ボス1とボス
プレート2とを溶接用突起3を利用して抵抗溶接する際
、つどのような課題がある。
However, if the boss 1 and the boss plate 2 are formed with uneven parts 1b and 2b for preventing relative rotation, when resistance welding the boss 1 and the boss plate 2 using the welding protrusion 3, What kind of challenges are there?

すなわち、溶接時、凹部1bの内周面に凸部2bが接触
していると、凸部2bが溶融されて凸部2bが消失し、
ボス1との機械的係合が弱くなって、相対回転を防止で
きなくなる虞れが生ずる。
That is, when the convex part 2b is in contact with the inner peripheral surface of the concave part 1b during welding, the convex part 2b is melted and disappears.
There is a risk that the mechanical engagement with the boss 1 will be weakened, making it impossible to prevent relative rotation.

そのため、ボス1とボスプレート2とを溶接用突起3を
利用して溶接する際には、装着孔1aと挿通孔2aとを
一致させるとともに、凹部1bの内周面と凸部2bとが
接触しないように間隙を設けて、精度良く位置決めして
溶接することとなり、溶接時のボス1に対するボスプレ
ート2の位置決め作業に手間がかかることとなっていた
Therefore, when welding the boss 1 and the boss plate 2 using the welding protrusion 3, the mounting hole 1a and the insertion hole 2a are aligned, and the inner peripheral surface of the recess 1b and the protrusion 2b are in contact with each other. A gap must be provided to prevent the welding from occurring, and the welding must be performed by positioning with high accuracy, making it time-consuming to position the boss plate 2 relative to the boss 1 during welding.

また、ステアリングホイールが、凹部1bの内周面と凸
部2bとの間に予め間隙を設けて形成される。そのため
、ステアリングシャフト10への装着後に溶接用突起3
付近の溶接が万一剥離して、相対回転防止機構が作動す
る際、既述の間隙により、凸部2bが凹部1bの内周面
に当接するまで、ステアリングホイールがガタックこと
となるこの発明に係るステアリングホイールでは、上述
のmMを解決するもので、ボスとボスプレートとを、ボ
スプレートの相対回転を防止し、かつ、抵抗溶接を利用
して接合する場合に、ボスに対するボスプレートの位置
決めを手間取ること無く簡単に行なうことができ、また
、溶接結合に加えて、機械的保合ができるようにして、
結合強度を向上させることができ、さらに、ボスプレー
トとボスとの間にガタッキが生じないステアリングホイ
ールを提供すること目的とする。
Further, the steering wheel is formed with a gap provided in advance between the inner circumferential surface of the recess 1b and the protrusion 2b. Therefore, after mounting the welding protrusion 3 on the steering shaft 10,
In this invention, when the welding in the vicinity should come off and the relative rotation prevention mechanism is activated, the steering wheel will be stuck due to the above-mentioned gap until the convex part 2b comes into contact with the inner peripheral surface of the concave part 1b. Such a steering wheel solves the above-mentioned mm, and prevents relative rotation of the boss and the boss plate, and when joining the boss and the boss plate using resistance welding, the positioning of the boss plate with respect to the boss is controlled. It can be easily done without any hassle, and in addition to welding, it can be mechanically secured.
It is an object of the present invention to provide a steering wheel that can improve the bonding strength and that does not cause backlash between a boss plate and a boss.

〈課題を解決するための手段〉 この発明に係るステアリングホイールは、ステアリング
シャフトに連結させるための装着孔を備えたボスと、前
、記ステアリングシャフトを挿通させるための挿通孔を
備えて前記ボスに連結されるボスプレートと、を抵抗溶
接により接合させているステアリングホイールにおいて
、 前記ボスの上面における前記装着孔の周囲に、上方から
見て前記装着孔を中心とした外周形状を非円形として上
方へ突出する凸部が形成され、前記ボスプレートの挿通
孔が、前記ボスの凸部を嵌合できる形状に形成され、 前記凸部の外周面と前記挿通孔の内周面との一方がテー
バ面として、前記凸部を前記挿通孔内に嵌合させる際、
前記テーバ面の一部が、前記挿通孔若しくは凸部の他方
の緑と当接可能として、前記テーバ面と前記挿通孔若し
くは前記凸部の縁との当接部位を溶接部位として、前記
ボスとボスプレートとが溶接されていることを特徴とす
る〈発明の作用・効果〉 この発明に係るステアリングホイールでは、ボスの外周
形状を非円形とした凸部がボスプレートの挿通孔に略嵌
合され、凸部の外周面若しくは挿通孔の内周面の一方に
おけるテーバ面の一部が、挿通孔若しくは凸部の他方の
縁に当接し、その当接部位を溶接部位として、ボスとボ
スプレートとが溶接されている。
<Means for Solving the Problems> A steering wheel according to the present invention includes a boss provided with a mounting hole for coupling to a steering shaft, and an insertion hole for inserting the steering shaft into the boss. In a steering wheel in which a boss plate to be connected is joined by resistance welding, an outer peripheral shape around the mounting hole on the upper surface of the boss is non-circular when viewed from above and is directed upwardly. A protruding convex portion is formed, the insertion hole of the boss plate is formed in a shape capable of fitting the convex portion of the boss, and one of the outer circumferential surface of the convex portion and the inner circumferential surface of the insertion hole is a tapered surface. When fitting the protrusion into the insertion hole,
A part of the tapered surface can come into contact with the other green of the insertion hole or the convex part, and the part where the tapered surface and the edge of the insertion hole or the convex part come into contact is a welding part, and the boss and <Operations and Effects of the Invention> In the steering wheel according to the present invention, the convex portion having a non-circular outer peripheral shape of the boss is substantially fitted into the insertion hole of the boss plate. , a part of the tapered surface on one of the outer circumferential surface of the protrusion or the inner circumferential surface of the insertion hole contacts the other edge of the insertion hole or the protrusion, and the contact area is used as the welding area, and the boss and the boss plate are connected. is welded.

すなわち、ナツトを利用してステアリングシャフトへス
テアリングホイールを装着した後では、ボスプレートの
挿通孔に嵌合しているボスの凸部が、上方から見て装着
孔を中心とした外周形状を非円形としており、万一溶接
部位が剥離したとしても、ボスプレートの挿通孔の内周
面やボスの凸部の外周面における非溶融部位が規制する
こととなって、ボスプレートがボスに対して相対回転す
ることを防止することができる。また、ボスプレートの
挿通孔の内周面やボスの凸部の外周面における非溶接部
位が溶接部位を介在させて相互に陳間無く当接している
態様であり、ガタックことなく、ボスプレートがボスに
対して一体的に回転可能となる。
In other words, after the steering wheel is attached to the steering shaft using a nut, the convex part of the boss that fits into the insertion hole of the boss plate has a non-circular outer circumferential shape centered on the attachment hole when viewed from above. Even if the welded part were to peel off, the unmelted parts on the inner circumferential surface of the insertion hole of the boss plate and the outer circumferential surface of the convex part of the boss will prevent the boss plate from peeling relative to the boss. Rotation can be prevented. In addition, the non-welded parts on the inner circumferential surface of the insertion hole of the boss plate and the outer circumferential surface of the convex part of the boss are in constant contact with each other with the welded part interposed, so that the boss plate can be fixed without any backlash. It can be rotated integrally with respect to the boss.

そして、ボスとボスプレートとの溶接時、ボスに対して
ボスプレートを配置させる際には、ボスの凸部をボスプ
レートの挿通孔に嵌合させるだけで配置でき、その位置
決め作業を手間取ること無く簡単に行なえる。
When welding the boss and the boss plate, the boss plate can be placed relative to the boss by simply fitting the convex part of the boss into the insertion hole of the boss plate, eliminating the need for time-consuming positioning work. It's easy to do.

したがって、この発明に係るステアリングホイールでは
、ボスとボスプレートとの溶接後には、溶接結合に加え
、凸部と凹部の嵌合による機械的係合によって、結合強
度が向上し、また、ガタッキを生じさせること無くボス
プレートの相対回転を防止でき、さらに、溶接時の位置
決めを行なう際には、単に、ボスの凸部をボスプレート
の挿通孔に嵌合させるだけで良く、手間取ること無く簡
単に位置決めを行なうことができる。
Therefore, in the steering wheel according to the present invention, after welding the boss and the boss plate, in addition to the welded connection, the mechanical engagement by fitting the convex part and the concave part improves the joint strength, and also prevents backlash. Relative rotation of the boss plate can be prevented without causing any damage, and when positioning during welding, simply fit the protrusion of the boss into the insertion hole of the boss plate, making positioning easy and hassle-free. can be done.

〈実施例〉 以下、この発明の一実施例を図面に基づいて説明する。<Example> Hereinafter, one embodiment of the present invention will be described based on the drawings.

実施例のステアリングホイールWは、第3図に示すよう
に、リング部Rと、リング部Rの中央に配置されるボス
部Bと、ボス部Bから半径方向外方へ延びてボス部Bと
リング部Rとを連結する二本のスポーク部Sと、を備え
て構成されている。
As shown in FIG. 3, the steering wheel W of the embodiment includes a ring portion R, a boss portion B disposed at the center of the ring portion R, and a boss portion B extending radially outward from the boss portion B. It is configured to include two spoke parts S that connect the ring part R.

リング部Rには、鋼管製のリング部芯金16が配置され
ている。
In the ring portion R, a ring portion core metal 16 made of a steel pipe is arranged.

各スポーク部Sには、リング部芯金16に溶接される鋼
板製のスポーク部芯金15が配置されている。
A spoke portion core metal 15 made of a steel plate is arranged in each spoke portion S to be welded to a ring portion core metal 16.

そして、リング部芯金16と、各スポーク部芯金15に
おけるリング部R側の部位と、の外周には、敦賀ウレタ
ン等の合成樹脂製の被覆層1フが被覆形成されている。
A coating layer 1 made of synthetic resin such as Tsuruga urethane is formed on the outer periphery of the ring portion core metal 16 and the portion of each spoke portion core metal 15 on the ring portion R side.

ボス部Bは、ステアリングシャフト10に連結される装
着孔11mを備えた鋼製のボス11と、ボス11に溶接
されるボスプレート12と、を備えて構成されている。
The boss portion B includes a steel boss 11 that is connected to the steering shaft 10 and has a mounting hole 11m, and a boss plate 12 that is welded to the boss 11.

なお、実施例の場合には、左右のスポーク部芯金15・
15とボスプレート12とが一体物から構成されている
In addition, in the case of the embodiment, the left and right spoke portion core metals 15 and
15 and the boss plate 12 are constructed as one piece.

また、符号18は、ボス部Bの上部を覆うパッドである
Further, reference numeral 18 is a pad that covers the upper part of the boss portion B.

そして、′M1〜3図に示すように、実施例のステアリ
ングホイールWのボス11には、上面に、装着孔11a
を中心とした外周形状を六角形とする凸部13が形成さ
れている。また、凸部13の外周面は、下方に向って凸
部13の外形を大きくするように、テーパ面14として
いる。
As shown in Figures 'M1 to M3, the boss 11 of the steering wheel W of the embodiment has a mounting hole 11a on the top surface.
A convex portion 13 having a hexagonal outer circumferential shape centered on is formed. Further, the outer circumferential surface of the convex portion 13 is formed into a tapered surface 14 so that the outer shape of the convex portion 13 increases downward.

一方、ボスプレート12には、中央に、ステアリングシ
ャフト10を挿入可能な挿通孔12mが形成され、その
挿通孔12aの内周の形状は、ボス11の凸部13を嵌
合可能な六角形としている、さらに、この挿通孔12a
は、溶接前の状態において、ボス11の凸部13を嵌合
させた際、その凸部13のテーパ面14の略中腹に当接
する大きさに形成されている。
On the other hand, the boss plate 12 is formed at its center with an insertion hole 12m into which the steering shaft 10 can be inserted, and the inner circumference of the insertion hole 12a has a hexagonal shape into which the convex portion 13 of the boss 11 can be fitted. Furthermore, this insertion hole 12a
is formed in such a size that when the convex portion 13 of the boss 11 is fitted in the state before welding, the convex portion 13 comes into contact with approximately the midpoint of the tapered surface 14 of the convex portion 13.

実施例のステアリングホイールWの製造工程を述べると
、まず、ボスプレート12の挿通孔12aにボス11の
凸部13を嵌合させ、凸部13のテーパ面14にボスプ
レート12の下面側における挿通孔12aの周縁の縁を
当接させ、ボス11とボスプレート12とを所定の電極
で加圧して挟持し、所定の電流を通電させれば、両者の
当接部位付近を溶接部位としてボス11とボスプレート
12とが抵抗溶接により接合される。
To describe the manufacturing process of the steering wheel W of the embodiment, first, the protrusion 13 of the boss 11 is fitted into the insertion hole 12a of the boss plate 12, and the lower surface side of the boss plate 12 is inserted into the tapered surface 14 of the protrusion 13. If the edges of the peripheries of the holes 12a are brought into contact, the boss 11 and the boss plate 12 are pressed and held between predetermined electrodes, and a predetermined current is applied, the boss 11 will be welded near the contact area between the two. and the boss plate 12 are joined by resistance welding.

なお、別途、ボスプレート12と一体的なスポーク部芯
金15・15に、リング部芯金16を抵抗溶接を利用し
て溶接させておく。
Note that a ring portion core metal 16 is separately welded to the spoke portion core metals 15, which are integral with the boss plate 12, using resistance welding.

そして、各部芯金11・12・15・16が接合された
ステアリングホイール芯金Cを、所定の成形型にセット
し、被覆層17を形成し、その後、ボス部Bの上部に、
所定のホーンスイッチ機構等を介在させてパッド18を
配置させ、ボス部Bの下部に図示しないロアカバーを配
置させれば、実施例のステアリングホイールWを製造す
ることができる。
Then, the steering wheel core metal C to which the respective core metal parts 11, 12, 15, and 16 are joined is set in a predetermined mold, a coating layer 17 is formed, and then, on the upper part of the boss part B,
The steering wheel W of the embodiment can be manufactured by disposing the pad 18 with a predetermined horn switch mechanism or the like and disposing a lower cover (not shown) below the boss portion B.

したがって、実施例のステアリングホイールWでは、ボ
ス11とボスプレート12との溶接時に、単に、ボス1
1の凸部13をボスプレート!2の挿通孔12aに嵌合
させるだけで所定位置に配置させることができ、手間取
ること無く簡単に位置決めを行なうことができる。
Therefore, in the steering wheel W of the embodiment, when welding the boss 11 and the boss plate 12, the boss 1 is simply
The convex part 13 of 1 is a boss plate! It can be placed in a predetermined position simply by fitting it into the insertion hole 12a of No. 2, and positioning can be easily performed without taking much time.

そして、このステアリングホイールWでは、ナツト9を
利用してステアリングシャフト10ヘステアリングホイ
ールWを装着した後では、ポスプレート12の挿通孔1
2aに嵌合しているボス11の凸部13が、上方から見
て装着孔11aを中心とした外周形状を非円形としてお
り、溶接部位が万一剥離したとしても、ボスプレート1
2の挿通孔12aの内周面やボス11の四部13の外周
面における非溶融部位12A・IIAが規制することと
なって、ボスプレート12がボス11に対して相対回転
することを防止することができる。
In this steering wheel W, after the steering wheel W is attached to the steering shaft 10 using the nut 9, the insertion hole 1 of the post plate 12
The convex part 13 of the boss 11 fitted to the boss plate 2a has a non-circular outer circumferential shape centered on the mounting hole 11a when viewed from above, so that even if the welded part should peel off, the boss plate 1
The non-melted portions 12A and IIA on the inner circumferential surface of the insertion hole 12a of No. 2 and the outer circumferential surface of the four parts 13 of the boss 11 restrict the relative rotation of the boss plate 12 with respect to the boss 11. I can do it.

また、ボスプレート12の挿通孔12aの内周面やボス
11の凸部13の外周面における非溶融部位12A・I
IAが溶接部位を介在させて相互に隙間無く当接してい
る!s様であり、ガタ、ツタことなく、ボスプレート1
2がボス11に対して一体的に回転可能となり、既述の
発明の作用・効果の欄で述べたと同様な効果を奏する。
In addition, non-melted portions 12A and I on the inner circumferential surface of the insertion hole 12a of the boss plate 12 and the outer circumferential surface of the convex portion 13 of the boss 11
The IAs are in contact with each other without any gap with the welded part interposed! Mr. s, boss plate 1 without rattling or creeping
2 can be rotated integrally with respect to the boss 11, and the same effects as described in the section of the operation and effect of the invention described above are achieved.

さらに、実施例のボス11では、ボスプレート12に対
する溶接部位と相対回転防止機構とを一致した箇所に配
設している。そのため、従来のように、ボス1の上面に
、ボスプレート2との溶接用のスペースと、相対回転防
止機構の凹部1bと、を別々に設けなくとも良く、ボス
11の外径を小さくすることができ、ボス11の軽量化
や製造コストの低減を図ることができる。
Further, in the boss 11 of the embodiment, the welding portion to the boss plate 12 and the relative rotation prevention mechanism are arranged at the same location. Therefore, there is no need to separately provide a space for welding to the boss plate 2 and a recess 1b for the relative rotation prevention mechanism on the upper surface of the boss 1, as in the conventional case, and the outer diameter of the boss 11 can be reduced. This makes it possible to reduce the weight of the boss 11 and reduce manufacturing costs.

なお、実施例では、ボス!■における凸部13のテーバ
面14の全周を、ボスプレート12における挿通孔12
aの内周面の周縁の全周に当接させて溶接させる場合を
示したが、装着孔f1gを間にして対称的に配置される
二箇所に、挿通孔12aと嵌合可能なテーバ面14を形
成し、その部位を利用して溶接しても良い。
In addition, in the example, Boss! The entire circumference of the tapered surface 14 of the convex portion 13 in
Although the case where welding is made by contacting the entire circumference of the inner circumferential surface of a is shown, there are tapered surfaces that can fit into the insertion hole 12a at two places symmetrically arranged with the mounting hole f1g in between. 14 may be formed and welding may be performed using that portion.

また、実施例では、ボス11に形成する凸部13として
、上方から見て装着孔11aを中心として外周形状を六
角形とするものを示したが、第4図に示すように、ボス
プレート12の挿通孔12aの形状を対応させれば、上
方から見て装着孔11aを中心として凸部13の外周形
状を非円形である長円形としても良い。
Further, in the embodiment, the convex portion 13 formed on the boss 11 has a hexagonal outer circumferential shape centered on the mounting hole 11a when viewed from above, but as shown in FIG. If the shape of the insertion hole 12a corresponds to the shape of the insertion hole 12a, the outer circumferential shape of the convex portion 13 centered on the mounting hole 11a may be a non-circular ellipse when viewed from above.

さらに、実施例では、ボス11の凸部13側にテーバ面
14を形成したものを示したが、勿論、ボス11の凸部
13側でなく、ボスプレート12の貫通孔12aの内周
面に、テーバ面14を形成しても良い。
Further, in the embodiment, the tapered surface 14 is formed on the convex portion 13 side of the boss 11, but of course, it is formed not on the convex portion 13 side of the boss 11 but on the inner circumferential surface of the through hole 12a of the boss plate 12. , a Taber surface 14 may be formed.

ちなみに、ボス11の凸部13側にテーバ面14を形成
する場合には、通常、ボス11が鍛造加工により形成さ
れるものであり、その鍛造時、体的にテーバ面14を備
えた凸部13を形成できるため、ボス11やボスプレー
ト12の製造工数・製造コストを低減することができる
Incidentally, when forming the Taber surface 14 on the side of the convex portion 13 of the boss 11, the boss 11 is usually formed by forging, and during the forging process, the convex portion with the Taber surface 14 is physically formed. 13, it is possible to reduce the number of manufacturing steps and manufacturing costs for the boss 11 and the boss plate 12.

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

第1図は、この発明の一実施例を示すステアリングホイ
ールの部分断面図であり、第3図のI−■断面図、 第2図は、同実施例の溶接前の状態を示す斜視図、 第3図は、同実施例の平面図、 N4図は、他の実施例の溶接前の状態を示す斜視図、 第5図は、従来例の溶接前の状態を示す分解斜視図、 第6図は、従来例の溶接後の状態を示す断面図である。 11・・・ボス、 11a−・・装着孔、 12・・・ボスプレート、 13・・・凸部、 14・・・テーバ面、 W・・・ステアリングホイール。 特  許  出  願 人 豊田合成株式会社
FIG. 1 is a partial sectional view of a steering wheel showing an embodiment of the present invention, and a sectional view taken along the line I-■ in FIG. 3. FIG. 2 is a perspective view of the same embodiment before welding. Figure 3 is a plan view of the same embodiment; Figure N4 is a perspective view of another embodiment before welding; Figure 5 is an exploded perspective view of the conventional example before welding; The figure is a sectional view showing a state after welding of a conventional example. DESCRIPTION OF SYMBOLS 11... Boss, 11a... Mounting hole, 12... Boss plate, 13... Convex part, 14... Taber surface, W... Steering wheel. Patent applicant: Toyoda Gosei Co., Ltd.

Claims (1)

【特許請求の範囲】 ステアリングシャフトに連結させるための装着孔を備え
たボスと、前記ステアリングシャフトを挿通させるため
の挿通孔を備えて前記ボスに連結されるボスプレートと
、を抵抗溶接により接合させているステアリングホィー
ルにおいて、 前記ボスの上面における前記装着孔の周囲に、上方から
見て前記装着孔を中心とした外周形状を非円形として上
方へ突出する凸部が形成され、前記ボスプレートの前記
挿通孔が、前記ボスの凸部を嵌合できる形状に形成され
、 前記凸部の外周面と前記挿通孔の内周面との一方がテー
パ面として、前記凸部を前記挿通孔内に嵌合させる際、
前記テーパ面の一部が、前記挿通孔若しくは凸部の他方
の縁と当接可能として、前記テーパ面と前記挿通孔若し
くは前記凸部の縁との当接部位を溶接部位として、前記
ボスとボスプレートとが溶接されていることを特徴とす
るステアリングホィール。
[Scope of Claims] A boss having a mounting hole for connecting to a steering shaft and a boss plate connected to the boss and having an insertion hole for inserting the steering shaft are joined by resistance welding. In the steering wheel, a convex portion protruding upward is formed around the mounting hole on the upper surface of the boss, and has a non-circular outer peripheral shape centered on the mounting hole when viewed from above, and The insertion hole is formed in a shape into which the protrusion of the boss can be fitted, and one of the outer circumferential surface of the protrusion and the inner circumference of the insertion hole is a tapered surface, and the protrusion is fitted into the insertion hole. When matching,
A part of the tapered surface can come into contact with the other edge of the insertion hole or the protrusion, and the part where the tapered surface and the edge of the insertion hole or the protrusion come into contact is a welding area, and the boss and A steering wheel characterized in that a boss plate is welded to the steering wheel.
JP8537290A 1990-03-30 1990-03-30 Steering wheel Pending JPH03284475A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8537290A JPH03284475A (en) 1990-03-30 1990-03-30 Steering wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8537290A JPH03284475A (en) 1990-03-30 1990-03-30 Steering wheel

Publications (1)

Publication Number Publication Date
JPH03284475A true JPH03284475A (en) 1991-12-16

Family

ID=13856888

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8537290A Pending JPH03284475A (en) 1990-03-30 1990-03-30 Steering wheel

Country Status (1)

Country Link
JP (1) JPH03284475A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7104156B2 (en) * 2001-10-04 2006-09-12 Dino North America, INC Steering wheel mounting hub

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7104156B2 (en) * 2001-10-04 2006-09-12 Dino North America, INC Steering wheel mounting hub

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