JPH06106902A - Low road noise wheel and manufacturing method thereof - Google Patents
Low road noise wheel and manufacturing method thereofInfo
- Publication number
- JPH06106902A JPH06106902A JP4255196A JP25519692A JPH06106902A JP H06106902 A JPH06106902 A JP H06106902A JP 4255196 A JP4255196 A JP 4255196A JP 25519692 A JP25519692 A JP 25519692A JP H06106902 A JPH06106902 A JP H06106902A
- Authority
- JP
- Japan
- Prior art keywords
- wheel
- seal
- road noise
- foaming
- low road
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C19/00—Tyre parts or constructions not otherwise provided for
- B60C19/002—Noise damping elements provided in the tyre structure or attached thereto, e.g. in the tyre interior
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
(57)【要約】
【目的】 吸音材としてのウレタンシールをホィールに
接合させる際の接合力を増すとともに、発泡後のウレタ
ンシールを破損させるおそれの少ない低ロードノイズホ
ィールを製造する方法を提供する。
【構成】 カチオン塗装前のホィール１の外周部５の凹
部６に発泡前のウレタンシール８を貼り付けた後、ホィ
ール１をカチオン塗装する。カチオン塗装したホィール
１を乾燥させる際の乾燥熱によりウレタンシール８を発
泡させ、ホィール外周の凹部６をウレタンシール８で満
たす。
(57) [Abstract] [Purpose] To provide a method for manufacturing a low road noise wheel that increases the joining force when joining a urethane seal as a sound absorbing material to a wheel and is less likely to damage the urethane seal after foaming. . [Structure] After a urethane seal 8 before foaming is attached to the recess 6 of the outer peripheral portion 5 of the wheel 1 before cationic coating, the wheel 1 is cationically coated. The urethane seal 8 is foamed by the heat of drying when the cationically coated wheel 1 is dried, and the concave portion 6 on the outer periphery of the wheel is filled with the urethane seal 8.
Description
【０００１】[0001]
【産業上の利用分野】本発明はロードノイズを低減させ
たホィール及びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel with reduced road noise and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】空気入りタイヤに特有の振動騒音として
は、周波数がほぼ１０Ｈｚのときにピークとなるばね下
共振と、周波数がほぼ２６０Ｈｚのときにピークとなる
ロードノイズとがあり、このうち、ロードノイズに関し
ては、ウレタン発泡材などの吸音材をホィールに取り付
けることにより低減化が図られている（例えば、特開昭
６２−２１６８０３号公報、特開昭６４−７８９０２号
公報）。2. Description of the Related Art Vibration noise peculiar to pneumatic tires includes unsprung resonance that peaks at a frequency of about 10 Hz and road noise that peaks at a frequency of about 260 Hz. Road noise has been reduced by attaching a sound absorbing material such as urethane foam to the wheel (for example, JP-A-62-216803 and JP-A-64-78902).
【０００３】[0003]
【発明が解決しようとする課題】従来は、予め発泡させ
たウレタンを完成品ホィールの外周に接合させていた
が、完成品ホィールの外周は錆止め処理等の前処理がな
されているため、十分な接合力を確保することが難しい
という問題があった。さらに、ウレタンを予め発泡させ
ておくため、接合作業の際に、ウレタンを破損させてし
まうおそれもあった。Conventionally, urethane which has been foamed in advance has been joined to the outer periphery of the finished product wheel, but since the outer periphery of the finished product wheel has been subjected to pretreatment such as rust-prevention treatment, it is not sufficient. There was a problem that it was difficult to secure the joining force. Further, since the urethane is foamed in advance, there is a possibility that the urethane may be damaged during the joining work.
【０００４】本発明はこのような問題点に対応してなさ
れたものであり、ウレタンをホィールに接合しやすくす
るとともに、ホィールへのウレタン接合時にウレタンを
破損させるおそれのない低ロードノイズホィール製造方
法を提供することを目的とする。さらに、該製造方法に
より製造した低ロードノイズホィールであって、ホィー
ルのエアバルブ取り付け位置を開けて発泡性材料をシー
ルした低ロードノイズホィールを提供することを目的と
する。The present invention has been made in response to such a problem, and it is a method of manufacturing a low road noise wheel which facilitates the joining of urethane to a wheel and does not damage the urethane at the time of joining the urethane to the wheel. The purpose is to provide. Another object of the present invention is to provide a low road noise wheel manufactured by the manufacturing method, wherein the air valve mounting position of the wheel is opened to seal the foamable material.
【０００５】[0005]
【課題を解決するための手段】この目的を達成するた
め、本発明に係る低ロードノイズホィール製造方法は、
カチオン塗装前においてホィール外周に発泡前の発泡性
材料のシールを貼り付けた後、カチオン塗装を行い、塗
装を乾燥させる際の乾燥熱により発泡性材料シールを発
泡させる。In order to achieve this object, a method of manufacturing a low road noise wheel according to the present invention comprises:
Before the cationic coating, a seal of the foamable material before foaming is attached to the outer periphery of the wheel, and then cationic coating is performed, and the foamable material seal is foamed by the drying heat when the coating is dried.
【０００６】カチオン塗装後に発泡性材料のシールを貼
り付けると、タイヤ回転時に該シールが遠心力を受けて
剥がれやすくなる。この点、カチオン塗装前に発泡性材
料シールを貼り付けることにより、カチオン塗装後に貼
り付ける場合に比較して、より強力な接合力を確保する
ことができる。また、発泡前の発泡性材料シールをホィ
ールに貼り付ける作業は、発泡後の発泡性材料シールを
ホィールに貼り付ける作業と比較して、発泡性材料の破
損のおそれが極めて低い。When a seal made of a foaming material is attached after cationic coating, the seal is likely to be peeled off due to centrifugal force when the tire rotates. In this respect, by sticking the foamable material seal before the cationic coating, a stronger bonding force can be secured as compared with the case of sticking after the cationic coating. Further, the work of attaching the foamable material seal before foaming to the wheel is much less likely to damage the foamable material than the work of attaching the foamable material seal after foaming to the wheel.
【０００７】好ましい実施態様においては、発泡性材料
のシールは、乾燥時の温度において０．１ｇ／ｃｍ3 以
下の発泡率を有し、かつ、発泡時にはホィール外周の凹
部をほぼ満たす程度まで発泡する量とされる。前述した
ように、ロードノイズは約２６０Ｈｚにおいてピーク値
となる。発泡性材料シールの発泡率が最大で０．１ｇ／
ｃｍ3 であれば、ピーク値のロードノイズを十分に低減
できる。In a preferred embodiment, the seal of the foamable material has a foaming rate of 0.1 g / cm 3 or less at the temperature during drying, and foams to the extent that it substantially fills the recess on the outer circumference of the wheel during foaming. It is considered as the quantity. As described above, the road noise has a peak value at about 260 Hz. Foaming material seal has a maximum foaming rate of 0.1 g /
If it is cm 3 , the road noise at the peak value can be sufficiently reduced.
【０００８】また、発泡性材料シールをホィール外周の
凹部をほぼ満たす程度まで発泡させるのは、ホィール外
周の凹部を越えて上方に突出する程度まで発泡させる
と、タイヤを外す際の障害になるからである。タイヤを
外す際の障害にならずに、吸音材としての発泡性材料の
効果を最大限に発揮させるためには、ホィール外周の凹
部をほぼ満たす程度に発泡させれば十分である。Further, the foaming material seal is foamed to the extent that it substantially fills the recessed portion on the outer periphery of the wheel, because if it is foamed to the extent that it protrudes upward beyond the recessed portion on the outer periphery of the wheel, it becomes an obstacle when removing the tire. Is. In order to maximize the effect of the foamable material as the sound absorbing material without causing an obstacle when removing the tire, it is sufficient to foam the foam so as to substantially fill the recessed portion on the outer circumference of the wheel.
【０００９】好ましい実施態様においては、発泡性材料
のシールはホィール外周長さよりも短いストリップ形状
に形成され、ホィールのエアバルブ取り付け位置を開け
てホィール外周に貼り付けられる。予め、エアバルブ取
り付け位置が開くように発泡性材料シールの長さを調整
しておくことにより、発泡性材料シール発泡後にエアバ
ルブ用の孔を穿設する必要がなくなる。In a preferred embodiment, the foam material seal is formed in a strip shape shorter than the outer circumference of the wheel, and is attached to the outer circumference of the wheel by opening the air valve mounting position of the wheel. By previously adjusting the length of the foamable material seal so that the air valve mounting position is opened, it is not necessary to form a hole for the air valve after the foamable material seal is foamed.
【００１０】さらに、本発明は、ホィールの外周よりも
短い長さを有する発泡性材料のシールを該ホィールのエ
アバルブ取り付け位置を開けて該ホィール外周に貼り付
けてなる低ロードノイズホィールを提供する。Further, the present invention provides a low road noise wheel in which a seal made of a foam material having a length shorter than the outer circumference of the wheel is attached to the outer circumference of the wheel by opening an air valve mounting position of the wheel.
【００１１】[0011]
【実施例】本発明に係る低ロードノイズホィール製造方
法に用いるホィール１を図１に示す。ホィール１はハブ
取り付け用開口２と、このハブ取り付け用開口２の周囲
に等円周角に配置されている五つのボルト挿入口４を有
する内周部３と、内周部３の周囲に形成されている外周
部５とからなる。外周部５の中央には外周部５の周方向
に延びる凹部６が形成されている。1 shows a wheel 1 used in a method for manufacturing a low road noise wheel according to the present invention. The wheel 1 is formed around a hub mounting opening 2, an inner peripheral portion 3 having five bolt insertion ports 4 arranged at equal circumferential angles around the hub mounting opening 2, and around the inner peripheral portion 3. The outer peripheral portion 5 is formed. A recess 6 extending in the circumferential direction of the outer peripheral portion 5 is formed at the center of the outer peripheral portion 5.
【００１２】まず、図１に示すように、ホィール１の外
周部５の凹部６に適当な接着剤７を塗布する。次いで、
図２に示すように、外周部５の凹部６に発泡性材料とし
ての発泡前のウレタンシール８を貼り付ける。なお、発
泡性材料としてはウレタンに限らず、他の材料を用いて
もよい。First, as shown in FIG. 1, a suitable adhesive 7 is applied to the recess 6 of the outer peripheral portion 5 of the wheel 1. Then
As shown in FIG. 2, an unsealed urethane seal 8 as a foaming material is attached to the recess 6 of the outer peripheral portion 5. The foamable material is not limited to urethane and other materials may be used.
【００１３】ウレタンシール８は、図３に示すように、
細長いストリップ状であり、ホィール１の外周長さより
もやや短い長さを有している。このウレタンシール８は
カチオン塗装後のホィール１を乾燥させる温度（後述す
るように、摂氏約１４０〜１６０度）において０．１ｇ
／ｃｍ3 の発泡率を有している。さらに、ウレタンシー
ル８の容積（厚み×幅×長さ）は、ウレタンシール８が
発泡したときに凹部６をほぼ満たす程度に発泡するよう
な値に設定されている。The urethane seal 8 is, as shown in FIG.
It is in the shape of an elongated strip and has a length slightly shorter than the outer peripheral length of the wheel 1. This urethane seal 8 is 0.1 g at a temperature for drying the wheel 1 after cationic coating (about 140 to 160 degrees Celsius as described later).
It has a foaming rate of / cm 3 . Further, the volume (thickness × width × length) of the urethane seal 8 is set to a value such that when the urethane seal 8 foams, the urethane seal 8 foams so as to almost fill the recess 6.
【００１４】ウレタンシール８を凹部６に貼り付ける際
には、図２に示すように、エアバルブ９の取り付け口が
開くようにしておく。次いで、図４に示すように、発泡
前のウレタンシール８を外周部５に貼り付けた状態のホ
ィール１をカチオン電着槽１０に浸し、カチオン塗装を
行う。さらに、図５に示すように、乾燥室１１において
カチオン塗装後のホィール１を乾燥させ、このときの乾
燥熱によりウレタンシール８を発泡させる。乾燥室１１
における乾燥温度は通常摂氏１４０〜１６０度であるの
で、ウレタンシール８はこの温度範囲内で発泡するよう
なものを選定しておく。When the urethane seal 8 is attached to the recess 6, as shown in FIG. 2, the attachment port of the air valve 9 is opened. Next, as shown in FIG. 4, the wheel 1 in which the urethane seal 8 before foaming is attached to the outer peripheral portion 5 is dipped in the cation electrodeposition tank 10 to perform cation coating. Further, as shown in FIG. 5, the wheel 1 after cationic coating is dried in the drying chamber 11, and the urethane seal 8 is foamed by the heat of drying at this time. Drying room 11
Since the drying temperature in is usually 140 to 160 degrees Celsius, the urethane seal 8 is selected so as to foam within this temperature range.
【００１５】ウレタンシール８が発泡すると、図６に示
すように、ホィール１の外周部５の凹部６をほぼ満た
す。この後、ホィール１にタイヤ１２を取り付け、エア
バルブ９を介して空気を入れる。また、本発明に係る低
ロードノイズホィールは、図６に示すように、ホィール
１の外周よりも短い長さを有する発泡性材料のシール８
をホィール１のエアバルブ９の取り付け位置を開けてホ
ィール１の外周に貼り付けてある。When the urethane seal 8 foams, as shown in FIG. 6, it substantially fills the recess 6 of the outer peripheral portion 5 of the wheel 1. Then, the tire 12 is attached to the wheel 1 and air is introduced through the air valve 9. Further, as shown in FIG. 6, the low road noise wheel according to the present invention has a seal 8 made of a foam material having a length shorter than the outer circumference of the wheel 1.
Is attached to the outer periphery of the wheel 1 by opening the mounting position of the air valve 9 of the wheel 1.
【００１６】[0016]
【発明の効果】本発明に係る低ロードノイズホィール製
造方法においては、カチオン塗装前において発泡性材料
のシールをホィールに貼り付けるので、カチオン塗装後
に貼り付ける場合よりも大きな接合力を得ることができ
る。さらに、発泡性材料の発泡前において発泡性材料シ
ールをホィールに取り付けるので、発泡性材料の発泡後
にホィールに取り付ける場合よりも発泡性材料の破損の
おそれを少なくすることができる。In the method of manufacturing a low road noise wheel according to the present invention, since the seal of the foamable material is attached to the wheel before the cationic coating, a larger bonding force can be obtained than when the adhesive is attached after the cationic coating. . Furthermore, since the foamable material seal is attached to the wheel before the foamable material is foamed, the possibility of damaging the foamable material can be reduced as compared with the case where the foamable material is attached to the wheel after foaming.
【００１７】さらに、発泡性材料を取り付けていないホ
ィールにおいては、２６０Ｈｚにおけるロードノイズの
ピーク値は０．５Ｇ以上であるが、本発明に係る低ロー
ドノイズホィールにおいては、図７に示すように、約２
６０Ｈｚ付近における振動のピーク値が約０．１まで低
減されている。Further, the peak value of road noise at 260 Hz is 0.5 G or more in the wheel to which the foamable material is not attached, but in the low road noise wheel according to the present invention, as shown in FIG. About 2
The peak value of vibration near 60 Hz is reduced to about 0.1.
【図１】本発明に係る低ロードノイズホィール製造方法
に用いるホィールの断面図及び正面図である。FIG. 1 is a sectional view and a front view of a wheel used in a method for manufacturing a low road noise wheel according to the present invention.
【図２】ウレタンシールを貼り付けた状態のホィールの
断面図及び正面図である。FIG. 2 is a cross-sectional view and a front view of the wheel with a urethane seal attached.
【図３】ウレタンシールの斜視図である。FIG. 3 is a perspective view of a urethane seal.
【図４】カチオン塗装を示す概念図である。FIG. 4 is a conceptual diagram showing cationic coating.
【図５】カチオン塗装したホィールを乾燥させる際の概
念図である。FIG. 5 is a conceptual diagram when the wheel coated with cation is dried.
【図６】ウレタンシールが発泡した後のホィールの断面
図である。FIG. 6 is a cross-sectional view of the wheel after the urethane seal has foamed.
【図７】本発明に係る低ロードノイズホィールの効果を
示すグラフである。FIG. 7 is a graph showing the effect of the low road noise wheel according to the present invention.
１ ホィール ２ ハブ取り付け用開口 ３ 内周部 ４ ボルト挿入口 ５ 外周部 ６ 凹部 ７ 接着剤 ８ ウレタンシール ９ エアバルブ １０ カチオン電着槽 １１ 乾燥室 １２ タイヤ 1 Wheel 2 Hub Mounting Opening 3 Inner Circumference 4 Bolt Insertion Port 5 Outer Circumference 6 Recess 7 Adhesive 8 Urethane Seal 9 Air Valve 10 Cation Electrodeposition Tank 11 Drying Room 12 Tire
Claims (4)
された空間内に発泡性材料を介装させた低ロードノイズ
ホィールの製造方法であって、 カチオン塗装前のホィールの外周に発泡前の発泡性材料
のシールを貼り付ける過程と、 前記発泡性材料のシールを貼り付けた前記ホィールにカ
チオン塗装を行う過程と、 カチオン塗装後の前記ホィールを乾燥させる際の乾燥熱
により前記発泡性材料シールを発泡させる過程とからな
る低ロードノイズホィールの製造方法。1. A method for producing a low road noise wheel in which a foaming material is interposed in a space formed between a wheel outer circumference and a tire inner surface, wherein a low road noise wheel before cation coating is formed on the outer circumference of the wheel. A step of applying a foamable material seal, a step of applying cationic coating to the wheel having the expandable material seal attached, and a foaming material seal due to drying heat when drying the wheel after cationic coating And a method for manufacturing a low road noise wheel, which comprises a step of foaming.
装後の前記ホィールを乾燥させる際の温度で発泡率が
０．１ｇ／ｃｍ3 以下であり、かつ、発泡時には前記ホ
ィールの外周の凹部内をほぼ満たす程度まで発泡する量
を有することを特徴とする請求項１に記載の低ロードノ
イズホィール製造方法。2. The seal of the foamable material has a foaming rate of 0.1 g / cm 3 or less at a temperature for drying the wheel after cationic coating, and at the time of foaming, in a concave portion on the outer periphery of the wheel. The method for producing a low road noise wheel according to claim 1, wherein the method has a foaming amount that substantially satisfies the above condition.
の外周よりも短い長さを有し、前記ホィールのエアバル
ブ取り付け位置を開けて前記ホィール外周に貼り付けら
れることを特徴とする請求項１または２に記載の低ロー
ドノイズホィールの製造方法。3. The seal of the foamable material has a length shorter than the outer circumference of the wheel, and is attached to the outer circumference of the wheel by opening an air valve mounting position of the wheel. 2. The method for manufacturing the low road noise wheel according to 2.
発泡性材料のシールを該ホィールのエアバルブ取り付け
位置を開けて該ホィール外周に貼り付けてなる低ロード
ノイズホィール。4. A low road noise wheel in which a seal made of a foam material having a length shorter than the outer circumference of the wheel is attached to the outer circumference of the wheel by opening an air valve mounting position of the wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25519692A JP3245232B2 (en) | 1992-09-25 | 1992-09-25 | Low road noise wheel and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25519692A JP3245232B2 (en) | 1992-09-25 | 1992-09-25 | Low road noise wheel and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06106902A true JPH06106902A (en) | 1994-04-19 |
| JP3245232B2 JP3245232B2 (en) | 2002-01-07 |
Family
ID=17275366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25519692A Expired - Fee Related JP3245232B2 (en) | 1992-09-25 | 1992-09-25 | Low road noise wheel and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3245232B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2735722A1 (en) * | 1995-06-23 | 1996-12-27 | Lorraine Laminage | DEVICE FOR SOUNDPROOFING A WHEEL, AND IN PARTICULAR A MOTOR VEHICLE WHEEL |
-
1992
- 1992-09-25 JP JP25519692A patent/JP3245232B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2735722A1 (en) * | 1995-06-23 | 1996-12-27 | Lorraine Laminage | DEVICE FOR SOUNDPROOFING A WHEEL, AND IN PARTICULAR A MOTOR VEHICLE WHEEL |
| EP0749853A1 (en) * | 1995-06-23 | 1996-12-27 | Sollac S.A. | Device for sound damping of a wheel, in particular of a motor vehicle |
| US5899253A (en) * | 1995-06-23 | 1999-05-04 | Sollac | Device for sound insulating a wheel, in particular a wheel of a motor vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3245232B2 (en) | 2002-01-07 |
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| LAPS | Cancellation because of no payment of annual fees |