JPH02113134A - Disk brake rotor structure - Google Patents
Disk brake rotor structureInfo
- Publication number
- JPH02113134A JPH02113134A JP26650888A JP26650888A JPH02113134A JP H02113134 A JPH02113134 A JP H02113134A JP 26650888 A JP26650888 A JP 26650888A JP 26650888 A JP26650888 A JP 26650888A JP H02113134 A JPH02113134 A JP H02113134A
- Authority
- JP
- Japan
- Prior art keywords
- brake rotor
- collar
- disc brake
- steel plate
- clad steel
- 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
- 239000000463 material Substances 0.000 claims abstract description 12
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 11
- 239000000956 alloy Substances 0.000 claims abstract description 11
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 4
- 239000011701 zinc Substances 0.000 claims abstract description 4
- 239000010935 stainless steel Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 9
- 239000010959 steel Substances 0.000 abstract description 9
- 230000006866 deterioration Effects 0.000 abstract description 3
- 239000010953 base metal Substances 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 9
- 238000005260 corrosion Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、ディスクブレーキロータ構造に関す（従来の
技術）
例えば自動二輪車の制動装置に用いられるディスクブレ
ーキロータは、軽量化を図るため第６図示のようにアル
ミニウムまたはその合金を母材１とし、その表面にステ
ンレス鋼板２．２を積層したＡｇ−３ＵＳクラツド鋼板
が用いられるようになっている。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a disc brake rotor structure (prior art) For example, a disc brake rotor used in a braking device of a motorcycle is lightweight. In order to achieve this, as shown in Figure 6, an Ag-3US clad steel plate is used, in which aluminum or its alloy is used as the base material 1, and a stainless steel plate 2.2 is laminated on the surface thereof.
（発明が解決しようとする課題）
しかるに上記構成からなる／ｌ−５ＵＳクラツド鋼板に
より形成されたディスクブレーキロータでは、第７図に
部分拡大断面を示すようにアルミニウム（またはその合
金）からなる母材１とステンレス鋼板２．２との自然電
位が異なるがために積層界面に電蝕３，３が起り、ディ
スクブレーキロータの美観が損なわれるばかりでなく強
度低下をきたす原因ともなりかねない。(Problem to be Solved by the Invention) However, in a disc brake rotor formed from /l-5 US clad steel plate having the above structure, the base material made of aluminum (or an alloy thereof) is Since the natural potentials of 1 and the stainless steel plate 2.2 are different, electrolytic corrosion 3, 3 occurs at the laminated interface, which not only impairs the appearance of the disc brake rotor but also may cause a decrease in strength.
上記のクラツド鋼板は実用されて日も浅く、効果的な防
蝕手段が未だ確立されていず、塗料を塗るなどによる一
時的な防蝕が図られているに過ぎない。The above-mentioned clad steel plates have only been in practical use for a short time, and effective corrosion protection measures have not yet been established, and only temporary corrosion protection has been attempted by applying paint or the like.
しかし塗装によったのでは、ディスクブレーキロータに
生じる制動時の発熱が５００℃以上に達することがある
ため塗装が燃焼してしまい、十分な耐蝕性が保障されな
くなるという問題がある。However, with painting, there is a problem in that the heat generated in the disc brake rotor during braking can reach 500° C. or higher, which causes the paint to burn, making it impossible to ensure sufficient corrosion resistance.
本発明はこれに鑑み、アルミニウムまたはその合金とス
テンレス鋼板との積層界面の防蝕を図り、もってディス
クブレーキロータの美観を損なわないと同時に強度劣化
を防ぐことができるディスクブレーキロータ構造を提供
することを目的としてなされたものである。In view of this, it is an object of the present invention to provide a disc brake rotor structure that prevents corrosion of the laminated interface between aluminum or its alloy and a stainless steel plate, thereby not impairing the appearance of the disc brake rotor and at the same time preventing strength deterioration. It was done for a purpose.
（課題を解決するための手段）
上記従来技術が有する課題を解決するため本発明は、ア
ルミニウムまたはその合金を母材とし、その表面にステ
ンレス鋼板を積層して形成されるディスクブレーキロー
タにおいて、ディスクブレーキロータの中心に対し環状
に配設される複数個の取付孔内に、亜鉛またはその合金
等の犠牲陽極となり得る材料で形成されたカラーを圧嵌
し、このカラーに取付用ボルトを挿通して車輪に取付け
るようにしたことを特徴とする。(Means for Solving the Problems) In order to solve the problems of the above-mentioned prior art, the present invention provides a disc brake rotor that uses aluminum or its alloy as a base material and stacks stainless steel plates on the surface of the disc brake rotor. A collar made of material that can serve as a sacrificial anode, such as zinc or its alloy, is press-fitted into multiple mounting holes arranged in an annular manner around the center of the brake rotor, and mounting bolts are inserted into this collar. It is characterized in that it can be attached to the wheel.
（実施例）
以下、本発明の実施例を第１図乃至第５図を参照し、第
６図、第７図と共通する部材については同一符号を用い
て説明する。(Example) Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 5, and the same reference numerals are used for the same members as in FIGS. 6 and 7.
第１図はディスクブレーキロータ４の一例を示すもので
、アルミニウム（またはその合金）からなる母材１の表
面にステンレス鋼板２．２を積層して形成されたＡｌ１
−３ＵＳクラツド鋼板を用いて円環状に形成され、ブレ
ーキパッドが当る範囲Ａより中心側でその中心に対し同
窓的に複数個（図では４個）の取付孔５，５・・・が環
状配置に穿設されており、この取付孔５，５・・・によ
りディスクブレーキロータ４を車輪のハブに取付けるこ
とがＣきるようになっている。６，６・・・は冷却用の
孔である。FIG. 1 shows an example of a disc brake rotor 4, which is formed by laminating stainless steel plates 2.2 on the surface of a base material 1 made of aluminum (or its alloy).
- It is formed in an annular shape using a 3US clad steel plate, and a plurality of (four in the figure) mounting holes 5, 5, etc. are arranged in an annular manner on the center side of the area A where the brake pad hits, and are aligned with the center. These mounting holes 5, 5, . . . allow the disc brake rotor 4 to be mounted on the hub of the wheel. 6, 6... are holes for cooling.
上記取付孔５，５・・・には、犠牲陽極となり得る材料
、好ましくは亜鉛またはその合金により円筒状に形成さ
れたカラー７が圧嵌めされている。このカラー７は、第
４図に示すようにディスクブレーキロータ４の厚さに等
しい長さしを有するもののほか、第５図に示すように一
端にワッシャ８を一体に形成したものが用いられる。A cylindrical collar 7 made of a material that can serve as a sacrificial anode, preferably zinc or an alloy thereof, is press-fitted into the mounting holes 5, 5, . . . . The collar 7 may have a length equal to the thickness of the disc brake rotor 4 as shown in FIG. 4, or may have a washer 8 integrally formed at one end as shown in FIG. 5.
この取付孔５，５・・・内に圧嵌めされたカラー７゜７
・・・に取付用のボルト９が挿通されて車輪に取付けら
れる。このボルト９は全面にダクロ処理が施されている
。The collar 7゜7 is press-fitted into the mounting holes 5, 5...
The mounting bolts 9 are inserted into... and attached to the wheel. The entire surface of this bolt 9 is treated with dacro.
したがって取付孔５，５・・・内に圧嵌めされたカラー
７が犠牲陽極となって溶損するので、ディスクブレーキ
ロータ４のインナ面のＡｇ母材１の電蝕が防止される。Therefore, the collar 7 press-fitted into the mounting holes 5, 5, .
そのため、第５図示のようにカラー７にワッシャ８を一
体的に設けた場合には、その溶損によってボルト９の締
付力が弱まることから、そのワッシャ８の消耗期間を考
慮して定期的にカラー７を交換することが望ましい。Therefore, if the washer 8 is integrally provided with the collar 7 as shown in Figure 5, the tightening force of the bolt 9 will be weakened due to the wear and tear of the washer 8. It is desirable to replace collar 7.
上記のカラー７を取付孔５，５・・・に圧入したディス
クブレーキロータ４について、塩水噴霧７２時間、恒温
恒湿槽放置９６時間の処置を２サイクルにわたって腐蝕
試験したところ、母材１とステンレス鋼板２．２との積
層界面における腐蝕は殆んど認められなかった。A corrosion test was conducted on the disc brake rotor 4 with the collar 7 press-fitted into the mounting holes 5, 5, etc. over two cycles of salt water spraying for 72 hours and standing in a constant temperature and humidity chamber for 96 hours. Almost no corrosion was observed at the laminated interface with steel plate 2.2.
以上説明したように本発明によれば、犠牲陽極となり得
る材料で形成されたカラーをディスクブレーキロータの
取付孔に圧嵌めし、このカラーにボルトを挿通して取付
けるようにしたことによりクラツド鋼板の端部における
耐蝕性が得られるので、ディスクブレーキロータの端面
の損傷がなく、強度劣化も防止することができる。また
カラーを取付孔に圧入するだけでよいため、例えば塗装
による防蝕手段に較べ防蝕加工に費やす工数が大巾に軽
減され、安価になるなどの種々の効果がある。As explained above, according to the present invention, a collar made of a material that can be used as a sacrificial anode is press-fitted into a mounting hole of a disc brake rotor, and a bolt is inserted through this collar to attach the clad steel plate. Since corrosion resistance is achieved at the end portions, there is no damage to the end surfaces of the disc brake rotor, and deterioration in strength can also be prevented. In addition, since it is only necessary to press the collar into the mounting hole, there are various effects such as the number of man-hours required for corrosion-proofing is greatly reduced compared to, for example, corrosion-proofing means such as painting, and the cost is reduced.
第１図は本発明によるディスクブレーキロータの一実施
例を示す斜視図、第２図は同正面図、第３図は同取付状
態を示す部分断面図、第４図は第３図におけるカラーの
一例を示す断面図、第５図は第４図のカラーにワッシャ
を一体に形成した場合の断面図、第６図はディスクブレ
ーキロータの素材であるＡｌ１−８ＵＳクラツド鋼板の
部分斜視図、第７図は従来の電蝕状態を示す説明図であ
る。
１・・・母材、２・・・ステンレス鋼板、４・・・ディ
スクブレーキロータ、５・・・取付孔、７・・・カラー
８・・・ワッシャ、９・・・ボルト。
出願人代理人 佐 藤 −雄
第３図
第２図
第５図FIG. 1 is a perspective view showing an embodiment of the disc brake rotor according to the present invention, FIG. 2 is a front view of the same, FIG. 3 is a partial sectional view showing the same mounting state, and FIG. 4 is a view of the collar shown in FIG. 3. 5 is a sectional view showing one example, FIG. 5 is a sectional view when the washer is integrally formed with the collar shown in FIG. 4, FIG. The figure is an explanatory diagram showing a conventional electrolytic corrosion state. DESCRIPTION OF SYMBOLS 1... Base material, 2... Stainless steel plate, 4... Disc brake rotor, 5... Mounting hole, 7... Collar 8... Washer, 9... Bolt. Applicant's agent Mr. Sato Figure 3 Figure 2 Figure 5
Claims (1)
テンレス鋼板を積層して形成されるディスクブレーキロ
ータにおいて、ディスクブレーキロータの中心に対し環
状に配設される複数個の取付孔内に、亜鉛またはその合
金等の犠牲陽極となり得る材料で形成されたカラーを圧
嵌し、このカラーに取付用ボルトを挿通して車輪に取付
けるようにしたことを特徴とするディスクブレーキロー
タ構造。In a disc brake rotor made of aluminum or its alloy as a base material and laminated with stainless steel plates on its surface, zinc or its alloys are installed in multiple mounting holes annularly arranged around the center of the disc brake rotor. A disc brake rotor structure characterized in that a collar made of a material that can serve as a sacrificial anode, such as an alloy, is press-fitted, and a mounting bolt is inserted through the collar to attach it to a wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26650888A JP2679162B2 (en) | 1988-10-22 | 1988-10-22 | Disc brake rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26650888A JP2679162B2 (en) | 1988-10-22 | 1988-10-22 | Disc brake rotor structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02113134A true JPH02113134A (en) | 1990-04-25 |
| JP2679162B2 JP2679162B2 (en) | 1997-11-19 |
Family
ID=17431884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26650888A Expired - Lifetime JP2679162B2 (en) | 1988-10-22 | 1988-10-22 | Disc brake rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2679162B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001280381A (en) * | 2000-03-31 | 2001-10-10 | Honda Motor Co Ltd | Brake disc |
| JP2005030565A (en) * | 2003-07-11 | 2005-02-03 | Shimano Inc | Disk rotor for bicycle |
| EP1619405A1 (en) * | 2004-07-21 | 2006-01-25 | Shimano Inc. | Bicycle disc brake rotor |
| EP1627809A3 (en) * | 2004-08-19 | 2007-10-24 | Shimano Inc. | Bicycle disk brake rotor with laminated components having differing thicknesses |
| WO2014067800A1 (en) * | 2012-10-30 | 2014-05-08 | Saf-Holland Gmbh | Brake disk |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7784594B2 (en) | 2007-10-02 | 2010-08-31 | Shimano Inc. | Brake pad assembly for a bicycle disc brake |
-
1988
- 1988-10-22 JP JP26650888A patent/JP2679162B2/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001280381A (en) * | 2000-03-31 | 2001-10-10 | Honda Motor Co Ltd | Brake disc |
| JP2005030565A (en) * | 2003-07-11 | 2005-02-03 | Shimano Inc | Disk rotor for bicycle |
| US8365881B2 (en) | 2003-07-11 | 2013-02-05 | Shimano, Inc. | Bicycle disk brake apparatus with laminated components |
| EP1619405A1 (en) * | 2004-07-21 | 2006-01-25 | Shimano Inc. | Bicycle disc brake rotor |
| US7416060B2 (en) | 2004-07-21 | 2008-08-26 | Shimano Inc. | Bicycle disc brake rotor |
| US7424938B2 (en) | 2004-07-21 | 2008-09-16 | Shimano Inc. | Bicycle disc brake rotor |
| EP1627809A3 (en) * | 2004-08-19 | 2007-10-24 | Shimano Inc. | Bicycle disk brake rotor with laminated components having differing thicknesses |
| WO2014067800A1 (en) * | 2012-10-30 | 2014-05-08 | Saf-Holland Gmbh | Brake disk |
| DE102012219840B4 (en) * | 2012-10-30 | 2016-03-17 | Saf-Holland Gmbh | brake disc |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2679162B2 (en) | 1997-11-19 |
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