JPS6059126B2 - Steering wheel manufacturing method - Google Patents
Steering wheel manufacturing methodInfo
- Publication number
- JPS6059126B2 JPS6059126B2 JP7795983A JP7795983A JPS6059126B2 JP S6059126 B2 JPS6059126 B2 JP S6059126B2 JP 7795983 A JP7795983 A JP 7795983A JP 7795983 A JP7795983 A JP 7795983A JP S6059126 B2 JPS6059126 B2 JP S6059126B2
- Authority
- JP
- Japan
- Prior art keywords
- steering wheel
- oil
- pressure
- ring
- ring portion
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14836—Preventing damage of inserts during injection, e.g. collapse of hollow inserts, breakage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3047—Steering wheels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
技術分野
この発明はステアリングホィールの製造方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a method of manufacturing a steering wheel.
従来技術
従来、リング部を中空に形成したステアリングホィー
ル用心金を用いて軽量化を図つたステアリングホィール
があるが、そのリング部の肉厚はかなり厚く、例えば鋼
の場合で１．６Ｔｍ前後であつた。Prior Art Conventionally, there has been a steering wheel whose weight has been reduced by using a steering wheel guard with a hollow ring part, but the wall thickness of the ring part is quite thick, for example, in the case of steel, it is around 1.6 Tm. Ta.
しかし、このリング部をさらに薄肉化すると、その外
周にポラプロピレン樹脂、ポリ塩化ビニル樹脂等の合成
樹脂を射出成形法によつて被覆するとき、同リング部が
射出圧によつて押しつぶされてしまうおそれがあるため
、かかる薄肉化の実現は困難であつた。However, if this ring part is made even thinner, the ring part will be crushed by the injection pressure when the outer periphery is coated with synthetic resin such as polypropylene resin or polyvinyl chloride resin by injection molding. Therefore, it has been difficult to achieve such a thin wall thickness.
目的
この発明の目的は、心金のリング部外周にポリプロピ
レン樹脂、ポリ塩化ビニル樹脂等の合成樹脂を射出成形
法によつて被覆する際に、同リング部が射出圧によつて
変形するおそれがないため、リング部の肉厚を薄くする
ことが可能となり、ひいてはステアリングホィールの軽
量化及びコストダウンを図ることのできる新規なステア
リングホィールの製造方法を提供することにある。Purpose The purpose of the present invention is to prevent the ring portion from deforming due to injection pressure when the outer periphery of the ring portion of the mandrel is coated with synthetic resin such as polypropylene resin or polyvinyl chloride resin by injection molding. Therefore, it is an object of the present invention to provide a novel method for manufacturing a steering wheel, which makes it possible to reduce the wall thickness of the ring portion, thereby reducing the weight and cost of the steering wheel.
実施例
以下、この発明を具体化した一実施例を第１図〜第５
図に従つて説明すると、図面中１はステアリングホィー
ル用心金全体を示す。Embodiment Hereinafter, an embodiment embodying the present invention will be shown in FIGS. 1 to 5.
Referring to the drawings, reference numeral 1 indicates the entire steering wheel guard.
２は心金１の金属板よりなるボスプレートであつて、そ
の中央部には裏側へ突出するボス３が設けられ、同ボス
３にはステアリングシャフト （図示しない）に挿着さ
れるテーパ孔４が設けられている。Reference numeral 2 denotes a boss plate made of a metal plate with a mandrel 1, and a boss 3 protruding toward the back side is provided at the center of the boss plate, and a tapered hole 4 is provided in the boss 3 to be inserted into a steering shaft (not shown). is provided.
５はボスプレート２の両側部に溝曲形成された断面Ｕ字
状の取付部であつて、両取付部５の裏側には透孔６が設
けられている。Reference numeral 5 denotes mounting portions having a U-shaped cross section and grooves formed on both sides of the boss plate 2, and through holes 6 are provided on the back sides of both mounting portions 5.
７は基端部において前記取付部５内に挟着された２箇
所のスポーク部であつて、肉厚０．４〜１．６ｍの鋼等
よりなる中空パイプが用いられている。Reference numeral 7 denotes two spoke parts sandwiched within the mounting part 5 at the base end, and hollow pipes made of steel or the like with a wall thickness of 0.4 to 1.6 m are used.
同スポーク部７の基端は透孔６内へ湾曲されボスプレー
ト２の裏面側に開口される油Ｌの流通孔８となつており
、その開口端はかしめによつて拡径されている。９は両
スポーク部７の先端から連続形成された中空バイブより
なるリング部であつて、前記両流通孔８はスポーク部７
及びリング部９によつて連絡されている。The base end of the spoke portion 7 is curved into the through hole 6 to form an oil L flow hole 8 opened on the back side of the boss plate 2, and the diameter of the open end is enlarged by caulking. Reference numeral 9 denotes a ring portion made of a hollow vibrator continuously formed from the tips of both spoke portions 7, and both communication holes 8 are connected to the spoke portions 7.
and are connected by a ring section 9.
１０は両端において両スポーク部７の先端に掛止された
棒状のスポーク支持部材である。Reference numeral 10 denotes a rod-shaped spoke support member that is hooked to the tips of both spoke portions 7 at both ends.
１１の射出成形機（全体は図示しない）のノズルである
。This is a nozzle of No. 11 injection molding machine (the whole is not shown).
１２は固定型であつて、キャビティ面１２ａには心金１
が設置され、かつ合成樹脂が充満されるキャビティ１３
及びランナ１牡スプルー１５が凹設されている。12 is a fixed type, and a core metal 1 is provided on the cavity surface 12a.
cavity 13 in which is installed and filled with synthetic resin.
And runner 1 male sprue 15 is recessed.
１６は移動型であつて同じくキャビティ面にキャビティ
が凹設されるとともに、反対面から前記心金１の流通孔
８に連結する油Ｌの注出入ノズル１７が挿着されている
。Reference numeral 16 is a movable type having a cavity recessed in the cavity surface, and an oil L pouring nozzle 17 connected to the flow hole 8 of the mandrel 1 from the opposite surface is inserted.
１８は同注出入ノズル１７の基端に取付けられた油圧ホ
ースであつて、油圧ポンプ（図示しない）に連結されて
いる。Reference numeral 18 denotes a hydraulic hose attached to the base end of the inlet/outlet nozzle 17, and is connected to a hydraulic pump (not shown).
次に、この実施例を使用するには、まず心金１を固定型
１２及び移動型１６内に設置し、心金１の流通孔８に注
出入ノズル１７を連結させる。Next, in order to use this embodiment, first the mandrel 1 is installed in the fixed mold 12 and the movable mold 16, and the pouring nozzle 17 is connected to the flow hole 8 of the mandrel 1.
続いて、同注出入ノズル１７からリング部９及びスポー
ク部７内に油Ｌを注入し、同内を油圧によつて加圧しな
がら、ポリプロピレン樹脂等の合成樹脂をノズル１１か
らスプレー１５、ランナ１４を通じてキャビティ１３内
に射出し、同合成樹脂をリング部９、スポーク部７及び
スポーク支持部材１０の外周に被覆する。その後リン、
グ部９及びスポーク部７内の油Ｌを注出入ノズル１７か
ら除去．−すればよい。このようにこの実施例では、肉
厚の薄いリング部９及びスポーク部７であつても、その
内部が油圧によつて加圧されているため、射出成形時の
射出量によつて変形することがない。次に、前記実施例
の別例を第６図について説明すると、この別例において
はリング部９が肉厚０．４〜１．６Ｔｆａの鋼等よりな
る中空バイブによつて独立したリング状に形成されてお
り、板状のスポーク１９が同リング部９に接着、溶接等
により取付けられているとともに、リング部９の真上部
分裏側に２つの油Ｌの流通孔８が設けられている点にお
いて前記実施例と相違しており、他の構成、使用方法及
び効果は同様である。Next, the oil L is injected into the ring part 9 and the spoke part 7 from the injection/injection nozzle 17, and while pressurizing the inside with hydraulic pressure, synthetic resin such as polypropylene resin is sprayed from the nozzle 11 to the runner 15 and the runner 14. The synthetic resin is injected into the cavity 13 through the resin, and the outer circumferences of the ring portion 9, spoke portions 7, and spoke support member 10 are coated with the same synthetic resin. After that, Rin
The oil L in the spoke part 9 and the spoke part 7 is removed from the pouring/input nozzle 17. - Just do it. As described above, in this embodiment, even though the ring portion 9 and the spoke portion 7 have thin walls, their insides are pressurized by hydraulic pressure, so that they do not deform depending on the amount of injection during injection molding. There is no. Next, another example of the above embodiment will be explained with reference to FIG. 6. In this example, the ring portion 9 is formed into an independent ring shape by a hollow vibrator made of steel or the like with a wall thickness of 0.4 to 1.6 Tfa. The plate-like spokes 19 are attached to the ring part 9 by adhesive, welding, etc., and two oil flow holes 8 are provided on the back side of the upper part of the ring part 9. This embodiment is different from the embodiment described above, but other configurations, methods of use, and effects are the same.
更に、この別例によれば各種のステアリングホィールに
おいてリング部を共通に用意し、他部品ノのみを例えば
１本スポークにする等変更して構成できるという利点が
ある。Further, according to this alternative example, there is an advantage that the ring portion is prepared in common for various types of steering wheels, and only the other parts can be changed, for example, by changing to one spoke.
なお、この別例において、リング部９の真上部分は外力
があまりかからない箇所であることから、前記流通孔８
による同真上部分の強度低下は問題とならない。In this other example, since the portion directly above the ring portion 9 is not subjected to much external force, the above-mentioned communication hole 8
There is no problem with the decrease in strength of the part directly above the plate.
効果
以上詳述したように、この発明は中空に形成したリング
部９を有するステアリングホィール用心金１を金型１２
，１６内に設置し、同リング部９中空内部を油Ｌ圧によ
つて加圧しながら、少くともリング部９外周を被覆する
ような合成樹脂を射出成形し、その後リング部９内の油
Ｌ圧を解除し、同油Ｌを除去することにより、リング部
が射出圧によつて変形するおそれがないため、リング部
の肉厚を薄くすることが可能となり、ひいてはステアリ
ングホィールの軽量化及びコストダウンを図ることがで
きる優れた効果を奏する。Effects As described in detail above, the present invention provides a steering wheel mandrel 1 having a hollow ring portion 9 formed in a mold 12.
, 16, and while pressurizing the hollow inside of the ring part 9 with oil L pressure, synthetic resin is injection molded to cover at least the outer periphery of the ring part 9, and then the oil L inside the ring part 9 is By releasing the pressure and removing the same oil L, there is no risk of the ring part being deformed by the injection pressure, making it possible to reduce the wall thickness of the ring part, which in turn reduces the weight and cost of the steering wheel. It has an excellent effect of being able to lower the weight.
第１図はこの発明を具体化した実施例におけるステアリ
ング用心金の正面図、第２図は同じく背面図、第３図は
第１図のＡ−Ａ線における拡大断面図（移動型の注出入
ノズルも示す）、第４図は第１図のＢ−Ｂ線における拡
大断面図、第５図は本実施例の使用状態を示す分解斜視
図、第６図は本実施例の別例における心金の正面図であ
る。Fig. 1 is a front view of a steering guard in an embodiment embodying the present invention, Fig. 2 is a rear view thereof, and Fig. 3 is an enlarged sectional view taken along line A-A in Fig. 4 is an enlarged sectional view taken along the line B-B in FIG. 1, FIG. 5 is an exploded perspective view showing the usage state of this embodiment, and FIG. It is a front view of gold.
Claims (1)
ィール用心金１を金型１２、１６内に設置し、同リング
部９中空内部を油Ｌ圧によつて加圧しながら、少くとも
リング部９外周を被覆するよう合成樹脂を射出成形し、
その後リング部９内の油Ｌ圧を解除し、同油Ｌを除去す
ることを特徴とするステアリングホィールの製造方法。 ２ リング部９とこれを支持するスポーク部７とを中空
に連続形成し、同スポーク部７基端に設けた流通孔８か
ら油Ｌ圧をかけることを特徴とする特許請求の範囲第１
項記載のステアリングホィールの製造方法。３ リング
部９真上部分に設けた流通孔８から油Ｌ圧をかけること
を特徴とする特許請求の範囲第１項記載のステアリング
ホィールの製造方法。[Claims] 1. A steering wheel guard 1 having a hollow ring portion 9 is installed in the molds 12 and 16, and while pressurizing the hollow inside of the ring portion 9 with oil L pressure, a small amount of pressure is applied. Synthetic resin is injection molded to cover the outer periphery of the ring part 9,
A method for manufacturing a steering wheel characterized in that the oil L pressure in the ring portion 9 is then released and the oil L is removed. 2. Claim 1, characterized in that the ring part 9 and the spoke parts 7 that support the ring part 9 are formed continuously in a hollow manner, and the oil pressure is applied through the communication hole 8 provided at the base end of the spoke part 7.
The method for manufacturing the steering wheel described in Section 1. 3. The method for manufacturing a steering wheel according to claim 1, characterized in that oil pressure is applied from the flow hole 8 provided directly above the ring portion 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7795983A JPS6059126B2 (en) | 1983-05-02 | 1983-05-02 | Steering wheel manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7795983A JPS6059126B2 (en) | 1983-05-02 | 1983-05-02 | Steering wheel manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59202833A JPS59202833A (en) | 1984-11-16 |
| JPS6059126B2 true JPS6059126B2 (en) | 1985-12-24 |
Family
ID=13648517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7795983A Expired JPS6059126B2 (en) | 1983-05-02 | 1983-05-02 | Steering wheel manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6059126B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES1013329Y (en) * | 1989-12-11 | 1991-06-01 | Dalphi Metal Espana, S.A. | LIGHTWEIGHT ARMOR FOR STEERING WHEELS. |
| DE69821023T2 (en) | 1997-11-15 | 2004-10-28 | Trisport Ltd., Tamworth | PRESSING |
| DE19932700C1 (en) * | 1999-07-15 | 2001-05-03 | Hansjuergen Moeser | Process for the production of plastic objects by multi-component injection molding |
| DE102016123177A1 (en) * | 2016-11-30 | 2018-05-30 | Dalphi Metal Espana, S.A. | Steering wheel skeleton and vehicle steering wheel with such a steering wheel skeleton |
-
1983
- 1983-05-02 JP JP7795983A patent/JPS6059126B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59202833A (en) | 1984-11-16 |
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