JPH10287247A - Steering wheel - Google Patents
Steering wheelInfo
- Publication number
- JPH10287247A JPH10287247A JP9603197A JP9603197A JPH10287247A JP H10287247 A JPH10287247 A JP H10287247A JP 9603197 A JP9603197 A JP 9603197A JP 9603197 A JP9603197 A JP 9603197A JP H10287247 A JPH10287247 A JP H10287247A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- steering wheel
- hard resin
- hard
- gate
- 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
Links
- 229920005989 resin Polymers 0.000 claims abstract description 112
- 239000011347 resin Substances 0.000 claims abstract description 112
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims abstract description 28
- 239000003365 glass fiber Substances 0.000 claims abstract description 26
- 238000001746 injection moulding Methods 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 15
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 16
- 150000002739 metals Chemical class 0.000 abstract description 4
- 239000000243 solution Substances 0.000 abstract description 2
- 239000010985 leather Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 3
- 235000010724 Wisteria floribunda Nutrition 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- 239000003973 paint Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Steering Controls (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ステアリングホイ
ール、特に左右両側に握り部を備えたコンビネーション
タイプのステアリングホイールに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steering wheel, and more particularly to a combination type steering wheel having grip portions on both left and right sides.
【０００２】[0002]
【従来の技術】コンビネーションタイプのステアリング
ホイールは、硬質リム部の左右両側に軟質握り部を設け
た構造をしている。2. Description of the Related Art A combination type steering wheel has a structure in which soft grip portions are provided on both left and right sides of a hard rim portion.
【０００３】この種のステアリングホイールの製造方法
としては、成形型内にリム部及びスポーク部の芯金をセ
ットし、その成形型内に熱硬化性の硬質樹脂材料を鋳込
み、握り部及びスポーク部以外のリム部の芯金を硬質樹
脂で被覆する。As a method of manufacturing this type of steering wheel, a core metal of a rim portion and a spoke portion is set in a molding die, a thermosetting hard resin material is cast in the molding die, and a grip portion and a spoke portion are formed. The core metal other than the rim is covered with a hard resin.
【０００４】そして、硬質樹脂を被覆した芯金を別の成
形型にセットして軟質樹脂材料を注入し、握り部及びス
ポーク部の芯金を軟質樹脂で被覆する。[0004] Then, the core metal coated with the hard resin is set in another mold, a soft resin material is injected, and the core metal of the grip portion and the spoke portion is coated with the soft resin.
【０００５】このようにして製造されたスポーク部は、
硬質樹脂でスポーク部の必要な強度を保ち、軟質樹脂で
握り部の感触を高めている（類似技術として、実公昭５
４−１６９７号公報参照）。[0005] The spokes manufactured in this manner are:
The required strength of the spokes is maintained with hard resin, and the feel of the grip is enhanced with soft resin.
No. 4-1697).
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の技術にあっては、硬質樹脂が熱硬化性樹脂で
あり、汎用的な射出成形方法を使用できないため、大量
生産に不向きである。However, such a conventional technique is not suitable for mass production because the hard resin is a thermosetting resin and a general-purpose injection molding method cannot be used.
【０００７】コンビネーションタイプのステアリングホ
イールは、握り部の無い一般的なステアリングホイール
に比べて高級品とされ、今までは量産されることがなか
ったが、最近ではコンビネーションタイプのステアリン
グホイールの要求が高まり、量産の必要性がでてきた。[0007] Combination type steering wheels are considered to be more expensive than general steering wheels without grips and have not been mass-produced until now. Recently, however, the demand for combination type steering wheels has increased. The need for mass production has emerged.
【０００８】この発明は、このような従来の技術に着目
してなされたものであり、大量生産可能なコンビネーシ
ョンタイプのステアリングホイールを提供するものであ
る。The present invention has been made by paying attention to such conventional technology, and provides a combination type steering wheel which can be mass-produced.
【０００９】[0009]
【課題を解決するための手段】請求項１記載の発明は、
リム部における左右握り部以外の芯金を硬質樹脂で被覆
し、握り部及びスポーク部の各芯金を軟質樹脂で被覆し
たコンビネーションタイプのステアリングホイールにお
いて、前記硬質樹脂が射出成形可能な熱可塑性樹脂であ
る。According to the first aspect of the present invention,
In a combination type steering wheel in which the core metal other than the left and right grip portions in the rim portion is coated with a hard resin, and each core metal of the grip portion and the spoke portion is coated with a soft resin, the hard resin is a thermoplastic resin that can be injection molded. It is.
【００１０】請求項１記載の発明によれば、硬質樹脂が
熱可塑性樹脂のため、汎用的な射出成形方法を使用で
き、大量生産が可能である。According to the first aspect of the invention, since the hard resin is a thermoplastic resin, a general-purpose injection molding method can be used, and mass production is possible.
【００１１】ここで、「熱可塑性樹脂」とは、ＡＢＳ、
エンプラ／ＡＢＳアロイ、ＰＯＭ、ＰＡ、ＰＡＲ、ＰＳ
Ｆ、ＰＥＳ、ＰＥＴ、ＰＣ、ＰＰＥ、ＰＢＴ、ＰＰなど
が好適である。最も好ましいのはガラス繊維含有のＡＢ
Ｓ樹脂である。また、ＡＢＳ樹脂中におけるガラス繊維
の含有量は５〜１５wt％である。１５wt％より高いと射
出成形で必要に流動性が得られず、５wt％未満だと十分
な補強効果が得られない。尚、好ましいガラス繊維含有
のＡＢＳ樹脂は、射出成形の加工性及び環境応力亀裂抵
抗性を満足するため、次の性質を有する。Here, "thermoplastic resin" refers to ABS,
Engineering plastic / ABS alloy, POM, PA, PAR, PS
F, PES, PET, PC, PPE, PBT, PP and the like are suitable. Most preferred is AB containing glass fiber
S resin. The content of glass fiber in the ABS resin is 5 to 15% by weight. If it is higher than 15% by weight, fluidity required by injection molding cannot be obtained, and if it is less than 5% by weight, a sufficient reinforcing effect cannot be obtained. The preferred glass fiber-containing ABS resin has the following properties in order to satisfy the workability of injection molding and the resistance to environmental stress cracking.
【００１２】（０） ガラス繊維含量 ５〜
１５wt％ （１） 成形品中のガラス繊維長さ 0.2〜2.8mm （２） メルトフローレート（JIS・Ｋ7210、220℃、10
Kg荷重）4〜60g／10分 （３） 引っ張り強さ(ASTM・Ｄ638） 550〜800Kgｆ/c
m2 （４） 線膨張係数 （３〜６）Ｘ１
０ー5cm/cm℃ また、「軟質樹脂」には、熱硬化性樹脂及び熱可塑性樹
脂が使用できる。前者としては発泡ウレタン樹脂、後者
としては低硬度熱可塑性エラストマーが代表例として挙
げられる。最も好ましいは密度０．６〜０．９の発泡ウ
レタン樹脂である。(0) Glass fiber content 5
15wt% (1) Glass fiber length in molded product 0.2-2.8mm (2) Melt flow rate (JIS K7210, 220 ℃, 10
(Kg load) 4 ~ 60g / 10min (3) Tensile strength (ASTM ・ D638) 550 ~ 800kgf / c
m 2 (4) Coefficient of linear expansion (3-6) X1
0 over 5 cm / cm ° C. Further, the "soft resin", thermosetting resins and thermoplastic resins can be used. Typical examples of the former are urethane foam resins, and examples of the latter are low-hardness thermoplastic elastomers. Most preferred is a urethane foam resin having a density of 0.6 to 0.9.
【００１３】請求項２記載の発明は、硬質樹脂の端部に
軟質樹脂の下側に入り込む延長部を形成すると共に、該
延長部に軟質樹脂に対して係合する凸部又は凹部を形成
したものである。According to the second aspect of the present invention, an extension is formed at the end of the hard resin so as to enter the lower side of the soft resin, and a projection or a recess is formed on the extension to engage with the soft resin. Things.
【００１４】請求項２記載の発明によれば、硬質樹脂の
端部に形成した延長部が軟質樹脂に係合する凸部又は凹
部を有しているため、硬質樹脂と軟質樹脂との結合が確
実になる。また、延長部は軟質樹脂で隠されるため、見
映えの点でも問題ない。請求項３記載の発明は、硬質樹
脂の表面に加飾材が設けられている。ここで、「加飾
材」を形成する方法としては、流体印刷により、例えば
木目調の模様を転写し、その後、表面にクリア塗装を施
す流体印刷法、本木の薄板を接着剤で貼り付ける突板貼
り法、ＡＢＳ樹脂表面にスプレー塗装したり或いは成形
前に型内表面に塗料をインモールドしておく塗装法、予
備成形したフィルムを型内にインモールドしておくフィ
ルムインモールド法、加飾溶液中へ硬質樹脂部分を沈め
て加飾層を形成するディップ法などがある。According to the second aspect of the present invention, since the extension formed at the end of the hard resin has a projection or a recess which engages with the soft resin, the connection between the hard resin and the soft resin is reduced. Be certain. Further, since the extension is hidden by the soft resin, there is no problem in appearance. In the invention according to claim 3, a decorative material is provided on the surface of the hard resin. Here, as a method of forming the "decorative material", for example, a woodgrain pattern is transferred by fluid printing, and thereafter, a fluid printing method of applying a clear coating to the surface, and a thin sheet of wood is attached with an adhesive. Veneer sticking method, spray coating on ABS resin surface or coating method in which paint is in-molded on the inner surface of mold before molding, film in-molding method in which preformed film is in-molded in mold, decoration There is a dipping method in which a decorative layer is formed by sinking a hard resin portion into a solution.
【００１５】請求項３記載の発明によれば、硬質樹脂の
表面に加飾材が設けられているため、硬質樹脂の外観性
が良い。According to the third aspect of the present invention, since the decorative material is provided on the surface of the hard resin, the appearance of the hard resin is good.
【００１６】請求項４記載の発明は、熱可塑性樹脂がガ
ラス繊維を含むＡＢＳ樹脂である。According to a fourth aspect of the present invention, the thermoplastic resin is an ABS resin containing glass fibers.
【００１７】請求項４記載の発明によれば、熱可塑性樹
脂がＡＢＳ樹脂のため、加飾材に対する密着性が良い。
また、ＡＢＳ樹脂がガラス繊維を含んでいるため、ステ
アリングホイールに必要な強度は保たれる。According to the fourth aspect of the present invention, since the thermoplastic resin is an ABS resin, the adhesion to the decorative material is good.
Further, since the ABS resin contains glass fibers, the strength required for the steering wheel is maintained.
【００１８】請求項５記載の発明は、硬質樹脂の最小厚
さが５ｍｍ以上である。According to a fifth aspect of the present invention, the minimum thickness of the hard resin is 5 mm or more.
【００１９】請求項５記載の発明によれば、硬質樹脂の
最小厚さが５ｍｍ以上であるため、射出成形型内におけ
る熱可塑性樹脂の通路が確保され樹脂の流動性が良い。According to the fifth aspect of the present invention, since the minimum thickness of the hard resin is 5 mm or more, a passage for the thermoplastic resin in the injection mold is secured, and the fluidity of the resin is good.
【００２０】請求項６記載の発明は、硬質樹脂の片側又
は両側の端部だけに射出成形用のゲートがあり、硬質樹
脂中におけるガラス繊維の含有量が５〜１５ｗｔ％であ
る。According to a sixth aspect of the present invention, there is provided a gate for injection molding only on one or both ends of the hard resin, and the content of the glass fiber in the hard resin is 5 to 15 wt%.
【００２１】請求項６記載の発明によれば、射出成形用
のゲートが硬質樹脂の片側又は両側の端部だけに形成さ
れているため、ゲートの数は１つ又は２つで済む。従っ
て、強度的に弱い部分となる樹脂の合流部分（ウェル
ド）は形成されないか、或いは形成されても１つだけで
済むため、硬質樹脂の強度確保の点で有利である。ま
た、ゲートの数を少なくした反面、硬質樹脂を射出成形
する際の流動長は長くなるが、ＡＢＳ樹脂中のガラス繊
維の含有量が５〜１５ｗｔ％と少ないため、ＡＢＳ樹脂
の流動性が増し、確実な射出成形が行える。更に、ガラ
ス繊維が少ないということは、加飾材に対する密着性も
良い。According to the sixth aspect of the present invention, since the gate for injection molding is formed only on one or both ends of the hard resin, only one or two gates are required. Therefore, a resin confluent portion (weld), which is a weak portion, is not formed or only one is formed, which is advantageous in terms of securing the strength of the hard resin. In addition, although the number of gates is reduced, the flow length during injection molding of a hard resin becomes longer, but the flowability of the ABS resin increases because the content of glass fibers in the ABS resin is as small as 5 to 15 wt%. In addition, reliable injection molding can be performed. Furthermore, the fact that the glass fiber content is small means that the adhesion to the decorative material is good.
【００２２】請求項７記載の発明は、ゲートが硬質樹脂
の延長部にある。According to a seventh aspect of the present invention, the gate is provided at an extension of the hard resin.
【００２３】請求項７記載の発明によれば、ゲートが硬
質樹脂の延長部にあるため、ゲート跡が軟質樹脂に隠さ
れ見映が良い。According to the seventh aspect of the present invention, since the gate is at the extension of the hard resin, the trace of the gate is hidden by the soft resin, and the appearance is good.
【００２４】[0024]
【発明の実施の形態】本発明の好適な実施形態を図１〜
図５に基づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention is shown in FIGS.
A description will be given based on FIG.
【００２５】符号１は、コンビネーションタイプのステ
アリングホイールで、円環状のリム部２と、中心部を形
成するボス部３と、リム部２とボス部３を連結するスポ
ーク部４とから成っている。リム部２の内部にはパイプ
状の芯金５が設けられ、スポーク部４の内部には別の形
状をした芯金６が設けられ、ボス部３の内部にはベース
７が設けられている。Reference numeral 1 denotes a combination type steering wheel, which comprises an annular rim portion 2, a boss portion 3 forming a central portion, and a spoke portion 4 connecting the rim portion 2 and the boss portion 3. . A pipe-shaped metal core 5 is provided inside the rim portion 2, a metal core 6 having another shape is provided inside the spoke portion 4, and a base 7 is provided inside the boss portion 3. .
【００２６】リム部２のうち、左右の握り部８に相当す
る部分以外は、硬質樹脂９、１０にて被覆され、握り部
８及びスポーク部４は軟質樹脂１１にて被覆されてい
る。この実施形態では、硬質樹脂９、１０としてガラス
繊維（ＧＦ）を含むＡＢＳ樹脂が採用され、軟質樹脂１
１として発泡ウレタンが採用されている。The portions of the rim portion 2 other than the portions corresponding to the left and right grip portions 8 are covered with hard resins 9 and 10, and the grip portions 8 and the spoke portions 4 are covered with soft resin 11. In this embodiment, an ABS resin containing glass fiber (GF) is used as the hard resin 9 and 10, and the soft resin 1
Urethane foam is used as 1.
【００２７】硬質樹脂９、１０の表面には木目調の加飾
材１２が施されている。この加飾材１２は流体印刷法に
より形成されている。また、軟質樹脂１１の表面には皮
革１３が接着されており、該皮革１３の端末１３ａは硬
質樹脂９、１０の端部に形成した溝部１４内へ接着剤を
介して押し込まれている。溝部１４は円周方向に対して
斜めに形成されており、皮革１３の空転を防止してい
る。The surface of the hard resins 9 and 10 is provided with a wood-grain decorative material 12. The decorative material 12 is formed by a fluid printing method. Leather 13 is adhered to the surface of the soft resin 11, and a terminal 13 a of the leather 13 is pressed into a groove 14 formed at an end of the hard resin 9, 10 via an adhesive. The groove 14 is formed obliquely with respect to the circumferential direction to prevent the leather 13 from spinning.
【００２８】更に、硬質樹脂９、１０には軟質樹脂１１
の下側に入り込む筒状の延長部１５が形成されており、
該延長部１５には軟質樹脂１１に対して係合する凸部
（凹部でも可）１６が周囲に形成されている。この凸部
１６と軟質樹脂１１との係合により硬質樹脂９、１０と
軟質樹脂１１の端部との結合が確実になっている。Further, the hard resins 9 and 10 include soft resin 11
Is formed into a tubular extension 15 that enters the lower side of
A protruding portion (a concave portion is also possible) 16 that engages with the soft resin 11 is formed around the extension portion 15. The engagement between the protruding portion 16 and the soft resin 11 ensures the connection between the hard resins 9 and 10 and the end of the soft resin 11.
【００２９】次に、このステアリングホイール１の製造
方法を説明する。まず、射出成形型内にリム部２及びス
ポーク部４の芯金５、６をセットし、その型内にガラス
繊維を含むＡＢＳ樹脂を射出する。ＡＢＳ樹脂中におけ
るガラス繊維の含有量は１０wt％である。ＡＢＳ樹脂を
注入するゲートＧは、上側の硬質樹脂９には両方の延長
部１５に設けられ、また、下側の硬質樹脂１０は片側の
延長部１５に形成されている。Next, a method of manufacturing the steering wheel 1 will be described. First, the core metals 5, 6 of the rim portion 2 and the spoke portion 4 are set in an injection mold, and an ABS resin containing glass fibers is injected into the mold. The glass fiber content in the ABS resin is 10% by weight. The gate G for injecting the ABS resin is provided on both extensions 15 on the upper hard resin 9, and the lower hard resin 10 is formed on one extension 15 on the one side.
【００３０】従って、上側の硬質樹脂９の流動長Ｌ1
は、５１０ｍｍであるが、ＡＢＳ樹脂のガラス繊維含有
量が１０wt％のため流動性が大変良く、型内への確実な
射出が行える。Therefore, the flow length L1 of the upper hard resin 9
Is 510 mm, but since the glass fiber content of the ABS resin is 10 wt%, the fluidity is very good, and reliable injection into the mold can be performed.
【００３１】下側の硬質樹脂１０の場合は、ゲートＧが
１つのため、ウェルドが生じない。また、流動長Ｌ2 が
２００ｍｍあるが、この場合もＡＢＳ樹脂の流動性に問
題はない。また、図５に示すように、リム部２のおける
芯金５の外径Ｄは、１２ｍｍφで、硬質樹脂９、１０の
最小厚さｄ1 は６ｍｍで、最大厚さｄ2 は１０ｍｍであ
る。最小厚さｄ1 は型内におけるＡＢＳ樹脂の最も狭い
通路となるもので、この最小厚さｄ1 が６ｍｍ確保され
ているため、ＡＢＳ樹脂の型内への流動性は十分に確保
される。このように、硬質樹脂９、１０の形成を大量生
産可能な射出成形で行えるため、硬質樹脂９、１０の製
造が容易である。以上のような射出成形工程により、硬
質樹脂９、１０で被覆した芯金５、６が得られる（図２
参照）。In the case of the lower hard resin 10, since there is only one gate G, no weld occurs. The flow length L2 is 200 mm, but in this case, there is no problem in the flowability of the ABS resin. As shown in FIG. 5, the outer diameter D of the core metal 5 in the rim portion 2 is 12 mmφ, the minimum thickness d1 of the hard resins 9 and 10 is 6 mm, and the maximum thickness d2 is 10 mm. The minimum thickness d1 is the narrowest passage of the ABS resin in the mold. Since the minimum thickness d1 is 6 mm, the flowability of the ABS resin into the mold is sufficiently ensured. As described above, since the hard resins 9 and 10 can be formed by injection molding that can be mass-produced, the hard resins 9 and 10 can be easily manufactured. By the above-described injection molding process, core metals 5 and 6 covered with hard resins 9 and 10 are obtained.
reference).
【００３２】次に、硬質樹脂９、１０で部分的に被覆し
た芯金５、６を別の成形型にセットして軟質樹脂材料１
１を注入し、握り部８及びスポーク部４の芯金５、６を
軟質樹脂１１で被覆する（図３参照）。軟質樹脂１１を
注入する際に、軟質樹脂１１が型内で発泡して硬質樹脂
９、１０の延長部１５の凸部１６に対応した形状になる
ため、該凸部１６が軟質樹脂１１に対して係合した状態
となる。また、延長部１５には硬質樹脂９、１０を射出
成形した際のゲート跡が残されているが、このゲート跡
は軟質樹脂１１で覆い隠されるため、見映えの点でも優
れている。Next, the core metals 5, 6 partially covered with the hard resins 9, 10 are set in another mold, and the soft resin material 1
Then, the cores 5 and 6 of the grip portion 8 and the spoke portion 4 are covered with a soft resin 11 (see FIG. 3). When the soft resin 11 is injected, the soft resin 11 foams in the mold and has a shape corresponding to the protrusion 16 of the extension 15 of the hard resin 9, 10. To be engaged. In addition, although gate marks when the hard resins 9 and 10 are injection-molded are left on the extension portion 15, the gate marks are covered with the soft resin 11, so that the appearance is also excellent.
【００３３】そして、硬質樹脂９、１０の表面には、流
体印刷法により木目調の加飾材１２が施され、軟質樹脂
１１の表面には皮革１３が接着され、その端末１３ａが
硬質樹脂９、１０の溝部１４内に接着剤を介して図示せ
ぬヘラにより押込まれる。最後にベース７にパッドを取
付けてボス部３を形成し、ステアリングホイール１が完
成する。A wood-grain decorative material 12 is applied to the surfaces of the hard resins 9 and 10 by a fluid printing method, and a leather 13 is adhered to the surface of the soft resin 11. , Are pushed into the grooves 14 by a spatula (not shown) via an adhesive. Finally, a pad is attached to the base 7 to form the boss 3 and the steering wheel 1 is completed.
【００３４】尚、表面を加飾する際、ガラス繊維がその
含有量の多少によって露出する程度は異なるが、リム部
２の表面に繊維の先端が露出してしまうので、塗料をリ
ム部２表面に塗布して、露出したガラス繊維を覆うよう
に塗膜を形成する。その後、サンドペーパー等によりサ
ンディングして塗膜の表面を研磨してリム部２の表面全
体を平滑にすることもある。また、以上の実施形態で
は、軟質樹脂１１の表面に皮革１３を設ける例を示した
が、皮革１３以外のカバー部材を施しても良い。When decorating the surface, the degree to which the glass fibers are exposed varies depending on the content of the glass fibers, but since the tip of the fibers is exposed on the surface of the rim 2, the paint is applied to the surface of the rim 2. To form a coating film so as to cover the exposed glass fibers. Thereafter, the entire surface of the rim portion 2 may be smoothed by sanding with sandpaper or the like to polish the surface of the coating film. Further, in the above embodiment, the example in which the leather 13 is provided on the surface of the soft resin 11 has been described, but a cover member other than the leather 13 may be provided.
【００３５】[0035]
【発明の効果】請求項１記載の発明によれば、硬質樹脂
が熱可塑性樹脂のため、汎用的な射出成形方法を使用で
き、大量生産が可能である。According to the first aspect of the present invention, since the hard resin is a thermoplastic resin, a general-purpose injection molding method can be used, and mass production is possible.
【００３６】請求項２記載の発明によれば、硬質樹脂の
端部に形成した延長部が軟質樹脂に係合する凸部又は凹
部を有しているため、硬質樹脂と軟質樹脂との結合が確
実になる。また、延長部は軟質樹脂で隠されるため、見
映えの点でも問題ない。According to the second aspect of the present invention, since the extension formed at the end of the hard resin has a protrusion or a recess which engages with the soft resin, the connection between the hard resin and the soft resin is reduced. Be certain. Further, since the extension is hidden by the soft resin, there is no problem in appearance.
【００３７】請求項３記載の発明によれば、硬質樹脂の
表面に加飾材が設けられているため、硬質樹脂の外観性
が良い。According to the third aspect of the present invention, since the decorative material is provided on the surface of the hard resin, the appearance of the hard resin is good.
【００３８】請求項４記載の発明によれば、熱可塑性樹
脂がＡＢＳ樹脂のため、加飾材に対する密着性が良い。
また、ＡＢＳ樹脂がガラス繊維を含んでいるため、ステ
アリングホイールに必要な強度は保たれる。According to the fourth aspect of the present invention, since the thermoplastic resin is an ABS resin, the adhesion to the decorative material is good.
Further, since the ABS resin contains glass fibers, the strength required for the steering wheel is maintained.
【００３９】請求項５記載の発明によれば、硬質樹脂の
最小厚さが５ｍｍ以上であるため、射出成形型内におけ
る熱可塑性樹脂の通路が確保され樹脂の流動性が良い。According to the fifth aspect of the present invention, since the minimum thickness of the hard resin is 5 mm or more, a passage for the thermoplastic resin in the injection mold is ensured and the fluidity of the resin is good.
【００４０】請求項６記載の発明によれば、射出成形用
のゲートが硬質樹脂の片側又は両側の端部だけに形成さ
れているため、ゲートの数は１つ又は２つで済む。従っ
て、強度的に弱い部分となる樹脂の合流部分（ウェル
ド）は形成されないか、或いは形成されても１つだけで
済むため、硬質樹脂の強度確保の点で有利である。ま
た、ゲートの数を少なくした反面、硬質樹脂を射出成形
する際の流動長は長くなるが、ＡＢＳ樹脂中のガラス繊
維の含有量が５〜１５ｗｔ％と少ないため、ＡＢＳ樹脂
の流動性が増し、確実な射出成形が行える。更に、ガラ
ス繊維が少ないということは、加飾材に対する密着性も
良い。According to the invention of claim 6, since the gate for injection molding is formed only on one or both ends of the hard resin, only one or two gates are required. Therefore, a resin confluent portion (weld), which is a weak portion, is not formed or only one is formed, which is advantageous in terms of securing the strength of the hard resin. In addition, although the number of gates is reduced, the flow length during injection molding of a hard resin becomes longer, but the flowability of the ABS resin increases because the content of glass fibers in the ABS resin is as small as 5 to 15 wt%. In addition, reliable injection molding can be performed. Furthermore, the fact that the glass fiber content is small means that the adhesion to the decorative material is good.
【００４１】請求項７記載の発明によれば、ゲートが硬
質樹脂の延長部にあるため、ゲート跡が軟質樹脂に隠さ
れ見映が良い。According to the seventh aspect of the present invention, since the gate is located at the extension of the hard resin, the trace of the gate is hidden by the soft resin and the appearance is good.
【図１】この発明の実施形態に係るステアリングホイー
ルの平面図。FIG. 1 is a plan view of a steering wheel according to an embodiment of the present invention.
【図２】芯金に硬質樹脂を形成した状態を示すステアリ
ングホイールの平面図。FIG. 2 is a plan view of the steering wheel showing a state where a hard resin is formed on a cored bar.
【図３】芯金に硬質樹脂と軟質樹脂を形成した状態を示
すステアリングホイールの平面図。FIG. 3 is a plan view of the steering wheel showing a state where a hard resin and a soft resin are formed on a cored bar.
【図４】図１中矢示ＳＡ−ＳＡ線に沿う断面図。FIG. 4 is a sectional view taken along the line SA-SA shown in FIG.
【図５】図２中矢示ＳＢ−ＳＢ線に沿う断面図。FIG. 5 is a sectional view taken along the line SB-SB shown in FIG. 2;
２ リム部 ３ ボス部 ４ スポーク部 ５、６ 芯金 ８ 握り部 ９、１０ 硬質樹脂 １１ 軟質樹脂 １２ 加飾材 １５ 延長部 １６ 凸部 ｄ1 最小厚さ Ｇ ゲート 2 Rim part 3 Boss part 4 Spoke part 5, 6 Core 8 Grip part 9, 10 Hard resin 11 Soft resin 12 Decorating material 15 Extension part 16 Convex part d1 Minimum thickness G Gate
フロントページの続き (72)発明者 河上 貞之 静岡県富士市青島町218番地 日本プラス ト株式会社内 (72)発明者 杉山 友一 静岡県富士市青島町218番地 日本プラス ト株式会社内Continuing from the front page (72) Inventor Sadayuki Kawakami 218 Aoshima-cho, Fuji City, Shizuoka Prefecture Inside Japan Plastics Co., Ltd. (72) Inventor Tomoichi Sugiyama 218 Aoshima-cho Fuji City, Fuji City, Japan Plastics Japan Co., Ltd.
Claims (7)
硬質樹脂で被覆し、握り部及びスポーク部の各芯金を軟
質樹脂で被覆したコンビネーションタイプのステアリン
グホイールにおいて、 前記硬質樹脂が射出成形可能な熱可塑性樹脂であること
を特徴とするステアリングホイール。1. A combination type steering wheel in which a core metal other than left and right grip portions on a rim portion is coated with a hard resin, and each core metal of a grip portion and a spoke portion is coated with a soft resin, wherein the hard resin is injection-molded. A steering wheel characterized by being a possible thermoplastic resin.
あって、 硬質樹脂の端部に軟質樹脂の下側に入り込む延長部を形
成すると共に、該延長部に軟質樹脂に対して係合する凸
部又は凹部を形成したことを特徴とするステアリングホ
イール。2. The steering wheel according to claim 1, wherein an extension portion is formed at an end portion of the hard resin to enter a lower side of the soft resin, and the projection portion engages with the soft resin at the extension portion. Or a steering wheel characterized by forming a recess.
グホイールであって、 硬質樹脂の表面に加飾材が設けられていることを特徴と
するステアリングホイール。3. The steering wheel according to claim 1, wherein a decorative material is provided on a surface of the hard resin.
あって、 熱可塑性樹脂がガラス繊維を含むＡＢＳ樹脂であること
を特徴とするステアリングホイール。4. The steering wheel according to claim 3, wherein the thermoplastic resin is an ABS resin containing glass fibers.
テアリングホイールであって、 硬質樹脂の最小厚さが５ｍｍ以上であることを特徴とす
るステアリングホイール。5. The steering wheel according to claim 1, wherein the minimum thickness of the hard resin is 5 mm or more.
グホイールであって、 硬質樹脂の片側又は両側の端部だけに射出成形用のゲー
トがあり、硬質樹脂中におけるガラス繊維の含有量が５
〜１５ｗｔ％であることを特徴とするステアリングホイ
ール。6. The steering wheel according to claim 4, wherein a gate for injection molding is provided only on one or both ends of the hard resin, and the content of the glass fiber in the hard resin is 5 or less.
Steering wheel characterized in that the content is up to 15 wt%.
あって、 ゲートが硬質樹脂の延長部にあることを特徴とするステ
アリングホイール。7. The steering wheel according to claim 6, wherein the gate is provided on an extension of the hard resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09603197A JP4293475B2 (en) | 1997-04-14 | 1997-04-14 | Steering wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09603197A JP4293475B2 (en) | 1997-04-14 | 1997-04-14 | Steering wheel |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPH10287247A true JPH10287247A (en) | 1998-10-27 |
| JPH10287247A5 JPH10287247A5 (en) | 2005-03-10 |
| JP4293475B2 JP4293475B2 (en) | 2009-07-08 |
Family
ID=14154061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09603197A Expired - Lifetime JP4293475B2 (en) | 1997-04-14 | 1997-04-14 | Steering wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4293475B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1026066A3 (en) * | 1999-02-05 | 2001-03-21 | TRW Automotive Safety Systems GmbH & Co. KG | Heatable wooden steering wheel |
| US7520035B2 (en) | 2005-08-19 | 2009-04-21 | Takata Corporation | Seatbelt apparatus |
| JP2018532636A (en) * | 2015-09-24 | 2018-11-08 | フォルクスヴァーゲン アクチエンゲゼルシャフトＶｏｌｋｓｗａｇｅｎ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ | Method of manufacturing a coated steering wheel for a vehicle and steering wheel that can be manufactured by the method |
-
1997
- 1997-04-14 JP JP09603197A patent/JP4293475B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1026066A3 (en) * | 1999-02-05 | 2001-03-21 | TRW Automotive Safety Systems GmbH & Co. KG | Heatable wooden steering wheel |
| US6365875B1 (en) | 1999-02-05 | 2002-04-02 | Trw Automotive Safety Systems Gmbh & Co. Kg | Heatable steering wheel |
| US7520035B2 (en) | 2005-08-19 | 2009-04-21 | Takata Corporation | Seatbelt apparatus |
| JP2018532636A (en) * | 2015-09-24 | 2018-11-08 | フォルクスヴァーゲン アクチエンゲゼルシャフトＶｏｌｋｓｗａｇｅｎ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ | Method of manufacturing a coated steering wheel for a vehicle and steering wheel that can be manufactured by the method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4293475B2 (en) | 2009-07-08 |
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