JPS6367434A - Disk brake rotor able to notify wearing limit - Google Patents
Disk brake rotor able to notify wearing limitInfo
- Publication number
- JPS6367434A JPS6367434A JP21309986A JP21309986A JPS6367434A JP S6367434 A JPS6367434 A JP S6367434A JP 21309986 A JP21309986 A JP 21309986A JP 21309986 A JP21309986 A JP 21309986A JP S6367434 A JPS6367434 A JP S6367434A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- wear
- friction surface
- brake
- friction
- 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
Links
- 239000000463 material Substances 0.000 claims abstract description 44
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- -1 chromium oxide Chemical class 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/12—Discs; Drums for disc brakes
- F16D65/125—Discs; Drums for disc brakes characterised by the material used for the disc body
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/12—Discs; Drums for disc brakes
- F16D65/127—Discs; Drums for disc brakes characterised by properties of the disc surface; Discs lined with friction material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ディスクブレーキのロータに関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a rotor for a disc brake.
従来の技術
ディスクブレーキは車両用等として広く使用されている
。これは、回転するロータの両側に形成された摩擦面に
一対のブレーキパッドを押圧して、摩擦力によってロー
タの回転を抑制する形式のブレーキであり、例えば、新
編 自動車工学便覧（第５編 第２章 １０〜１４頁）
（昭和５７年１１月２６日発行）に掲載されている。BACKGROUND OF THE INVENTION Disc brakes are widely used in vehicles and the like. This is a type of brake that presses a pair of brake pads against friction surfaces formed on both sides of a rotating rotor to suppress the rotation of the rotor using frictional force. Chapter 2 pages 10-14)
(Published on November 26, 1981).
ディスクブレーキにおいては、主としてブレーキバンド
が摩耗するのであるが、ロータにおいても摩耗が起こる
のであり、特に、低い押圧力で高い制動力が得られる高
摩擦係数を持つブレーキパッドを用いると、ロータの摩
耗が増大する傾向がある。ロータの摩耗は、熱容量の低
下を招来し、高負荷制動時にロータの温度が高温となっ
てフェード現象が起こり易くなり、また、ブレーキパッ
ドの寿命が低下する。In disc brakes, the brake band wears out primarily, but the rotor also wears out. Particularly when brake pads with a high friction coefficient that provide high braking force with low pressing force are used, the rotor wears out. tends to increase. Wear of the rotor causes a decrease in heat capacity, and during high-load braking, the rotor temperature becomes high, making it easy to cause a fade phenomenon, and also shortening the life of the brake pad.
発明が解決しようとする問題点
したがって、ロータが一定量摩耗したならば、それを新
しいものと交換することが必要なのであるが、従来はロ
ータが摩耗限度に達したことを簡便に知る方法が無く、
定期点検時等にノギス等の測定具で厚さを測定せざるを
得ず、面倒であるのみならず、適切な時期にロータを交
換し難いという問題があった。Problems to be Solved by the Invention Therefore, when the rotor wears out a certain amount, it is necessary to replace it with a new one, but conventionally there is no easy way to know when the rotor has reached its wear limit. ,
The thickness must be measured using a measuring tool such as a caliper during periodic inspections, which is not only troublesome but also makes it difficult to replace the rotor at an appropriate time.
問題点を解決するための手段
本発明は、この問題を解決するために為されたものであ
り、ディスクブレーキロータの摩擦面に、そのロータの
材料よりも耐摩耗性の優れた耐摩材を、局部的に、かつ
、摩擦面の許容摩耗限度より僅かに浅く埋設したもので
ある。許容摩耗限度より僅かに浅いとは、使用前のロー
タにおいて、摩擦面と耐摩材の摩擦面側の端との距離が
、ロータの片面における許容摩耗量より僅かに小さいと
いうことである。Means for Solving the Problems The present invention has been made to solve this problem, and includes applying a wear-resistant material that has better wear resistance than the material of the rotor to the friction surface of the disc brake rotor. It is buried locally and slightly shallower than the allowable wear limit of the friction surface. Slightly shallower than the allowable wear limit means that in the rotor before use, the distance between the friction surface and the end of the wear-resistant material on the friction surface side is slightly smaller than the allowable wear amount on one side of the rotor.
作用
このように、ロータの摩擦面に耐摩材を埋設しておけば
、ロータが許容限度まで摩耗したとき、この耐摩材が摩
擦面に表れ、他の部分よりも僅かに突出する。そして、
ロータの回転に伴って、この凸部がブレーキパッドに当
たって軽い衝撃を与えることによりブレーキ振動を生じ
させ、ロータが許容限度まで摩耗したことを運転者に知
らせる。If a wear-resistant material is buried in the friction surface of the rotor in this manner, when the rotor wears down to the permissible limit, this wear-resistant material will appear on the friction surface and protrude slightly from other parts. and,
As the rotor rotates, this convex portion hits the brake pad and applies a slight impact, causing brake vibration and informing the driver that the rotor has worn down to an allowable limit.
発明の効果
このようにして、ロータが許容限度まで摩耗したことを
簡便に、かつ確実に知ることができるため、ロータを適
切な時期に交換することができ、ブレーキパッドの寿命
低下や、フェード現象の発生を良好に回避することがで
きる。Effects of the Invention In this way, it is possible to easily and reliably know that the rotor has worn to the permissible limit, so the rotor can be replaced at an appropriate time, and brake pad life reduction and fade phenomenon can be avoided. The occurrence of this can be effectively avoided.
実施例 以下、本発明の実施例を図面に基づいて説明する。Example Embodiments of the present invention will be described below based on the drawings.
第５図において、１０は円板状のディスクロータであり
、車両の車輪とともに回転させられる。In FIG. 5, 10 is a disk-shaped disc rotor, which is rotated together with the wheels of the vehicle.
ディスクロータ１０は外周部の両側に摩擦面１２゜１４
を備えており、これらの摩擦面１２．１４に対向して一
対のブレーキバンド、すなわちインナパッド１６および
アウタパッド１８が配設されている。これらのパッド１
６．１８はマウンティングブラケット２０によって、デ
ィスクロータ１０の軸心に平行な方向に摺動可能に支持
されており、キャリパ２２によってディスクロータ１０
に押圧される。キャリパ２２はインナバ・ノド１６の裏
面に対向して設けられた液圧シリンダ２４と、アウタパ
ッド１８の背面に対向して設けられたりアクション部２
６と、これらをディスクロータ１０の外周を越えて連結
する連結部２８とを備えており、マウンティングプラケ
ット２０に立設された図示しない２本のスライドビンに
よってディスクロータ１０の軸心に平行な方向に移動可
能に支持されている。したがって、液圧シリンダ２４の
シリンダボア３０に制動液圧が供給されるとき、ピスト
ン３２がインナバッド１６をディスクロータ１０の摩擦
面１２に押し付け、その反力でリアクション部２６がア
ウタパッド１８を他方の摩擦面１４に押し付けるのであ
る。The disc rotor 10 has friction surfaces 12°14 on both sides of the outer circumference.
A pair of brake bands, that is, an inner pad 16 and an outer pad 18, are arranged opposite these friction surfaces 12,14. these pads 1
6.18 is supported by the mounting bracket 20 so as to be slidable in a direction parallel to the axis of the disc rotor 10, and the disc rotor 10 is supported by the caliper 22.
Pressed by The caliper 22 includes a hydraulic cylinder 24 provided opposite to the back surface of the inner bar throat 16, and a hydraulic cylinder 24 provided opposite to the back surface of the outer pad 18.
6 and a connecting portion 28 that connects these beyond the outer periphery of the disc rotor 10, and the mounting bracket 20 is provided with two slide bins (not shown) erected on the mounting bracket 20 in a direction parallel to the axis of the disc rotor 10. movably supported. Therefore, when braking hydraulic pressure is supplied to the cylinder bore 30 of the hydraulic cylinder 24, the piston 32 presses the inner pad 16 against the friction surface 12 of the disc rotor 10, and the reaction section 26 uses the reaction force to push the outer pad 18 against the other friction surface. 14.
上記ロータ１０の摩擦面の一部には、第１図ないし第３
図に示すように耐摩材４０が埋め込まれている。耐摩材
４０は酸化アルミニウムから成っており、ロータ１０の
材料である鋳鉄よりも耐摩耗性に優れている。耐摩材４
０は、第２図および第３図から明らかなように、摩擦面
側の両面がロータ１０の各摩擦面１２．１４から微小距
離隔たるように埋め込まれている。また、耐摩材４０は
、第３図に示すように摩擦面側の両端面が緩い円弧の部
分円筒面とされている。A part of the friction surface of the rotor 10 is shown in FIGS. 1 to 3.
As shown in the figure, a wear-resistant material 40 is embedded. The wear-resistant material 40 is made of aluminum oxide, and has better wear resistance than cast iron, which is the material of the rotor 10. Wear-resistant material 4
0, as is clear from FIGS. 2 and 3, is embedded so that both surfaces on the friction surface side are separated from each friction surface 12, 14 of the rotor 10 by a small distance. Further, as shown in FIG. 3, the wear-resistant material 40 has both end surfaces on the friction surface side having a partial cylindrical surface with a gentle arc.
このロータ１０が第３図の状態から使用され、制動時に
ブレーキパッド１６．１８と摩擦係合することを繰返し
、摩擦面１２．１４が摩耗すると、第４図に示す状態と
なる。耐摩材４０は、ロータ１０の一般的な部分よりも
摩耗し難いために僅かな突部となってロータ１０の表面
に表れるのである。本実施例では、許容摩耗量が両面で
１關であるため、耐摩材４０の頂点と各摩擦面１２．１
４との距離ａがそれぞれ０．４５ ＊＊となるように耐
摩材４０が埋設されている。つまり、耐摩材４０は摩擦
面１２．１４の摩耗限度より僅かに浅く埋設されている
のである。When this rotor 10 is used from the state shown in FIG. 3 and repeatedly engages in friction with the brake pad 16.18 during braking, and the friction surface 12.14 wears out, the state shown in FIG. 4 is reached. The wear-resistant material 40 is less likely to wear than the general parts of the rotor 10, so it appears as a slight protrusion on the surface of the rotor 10. In this embodiment, since the allowable wear amount is 1 degree on both sides, the apex of the wear-resistant material 40 and each friction surface 12.1
The wear-resistant material 40 is buried so that the distance a between the wear-resistant material 40 and the wear-resistant material 40 is 0.45**, respectively. That is, the wear-resistant material 40 is buried slightly shallower than the wear limit of the friction surface 12.14.
このように、ロータ１０の表面に耐摩材４０による突部
が形成されることにより、ロータ１０の回転に伴ってブ
レーキパッド１６．１８に軽いｆｉ撃が与えられ、ブレ
ーキ振動が生じて、運転者はロータ１０が許容摩耗限度
まで摩耗したことを知覚することができる。なお、両摩
擦面１２．１４の摩耗によって表れる耐摩材４０は、前
述のように両端面が緩い円弧の部分円筒面とされている
ため、形成される突部は滑らかなものであり、ブレーキ
パッド１６．１８に当たってもパッドを傷めたり、摩耗
を促進させたりすることはない。また、耐摩材４０はロ
ータ１０の素材の鋳造時に鋳ぐるまれるものであるため
、耐摩材４０の埋設のために機械加工等を行う必要がな
く、安価に製造し得る。As described above, by forming the protrusions made of the wear-resistant material 40 on the surface of the rotor 10, a light shock is given to the brake pads 16, 18 as the rotor 10 rotates, causing brake vibration and causing the driver to can perceive that the rotor 10 has worn to the permissible wear limit. Note that the wear-resistant material 40 that appears due to the wear of both friction surfaces 12 and 14 has both end surfaces as partial cylindrical surfaces with gentle arcs as described above, so the protrusions formed are smooth, and the brake pad 16.18 will not damage the pad or accelerate its wear. Furthermore, since the wear-resistant material 40 is cast into the rotor 10 when the material is cast, there is no need for machining or the like to embed the wear-resistant material 40, and the rotor 10 can be manufactured at low cost.
耐摩材４０は、上記酸化アルミニウムのほか、酸化クロ
ム等地の金属酸化物または炭化ケイ素等の金運炭化物で
も良く、窒化アルミニウム、窒化ホウ素等の金属窒化物
でも良い。In addition to the above aluminum oxide, the wear-resistant material 40 may be a metal oxide such as chromium oxide, a metal carbide such as silicon carbide, or a metal nitride such as aluminum nitride or boron nitride.
第６図および第７図に別の実施例を示す。ただし、前記
実施例と同様のものには同じ符号を付して詳細な説明は
省略する。Another embodiment is shown in FIGS. 6 and 7. However, the same reference numerals are given to the same parts as in the above embodiment, and detailed explanation thereof will be omitted.
本実施例は、耐摩材が打込みによってロータ内へ埋設さ
れるものであり、耐摩材５０はクロム。In this embodiment, the wear-resistant material is embedded into the rotor by driving, and the wear-resistant material 50 is chrome.
タングステン９バナジウム、モリブデン、チタン等を一
種類または複数種類含む鉄系合金から成り、機械加工に
よって直方体に形成されている。一方、ロータ１０の両
摩擦面１２．１４には半径方向に満５２．５４が形成さ
れ、ここに耐摩材５０が、耐摩材５０の表面からロータ
１０の各摩擦面１２゜１４までの距離が片面で０．４５
＋＋＋ｎとなるように打ち込まれている。この場合の
許容摩耗量も１龍であり、ロータ１０の摩耗によって耐
摩材５０が表面に表れ、突部を形成することとなる。本
実施例においては、耐摩材５０および溝５２．５４がと
もに機械加工されるため、耐摩材５０のロータ１０に対
する埋設深さの精度が高い利点がある。It is made of an iron-based alloy containing one or more types of tungsten, vanadium, molybdenum, titanium, etc., and is formed into a rectangular parallelepiped by machining. On the other hand, both friction surfaces 12.14 of the rotor 10 are formed with a radius of 52.54 degrees, and the wear-resistant material 50 is formed here so that the distance from the surface of the wear-resistant material 50 to each friction surface 12.14 of the rotor 10 is 0.45 on one side
It is typed so that it becomes +++n. The allowable amount of wear in this case is also 1 dragon, and the wear-resistant material 50 appears on the surface due to wear of the rotor 10, forming a protrusion. In this embodiment, since both the wear-resistant material 50 and the grooves 52,54 are machined, there is an advantage that the depth of embedding the wear-resistant material 50 in the rotor 10 is highly accurate.
第８図および第９図に、さらに別の実施例を示す。（符
号は前記実施例と同様である。）これは、耐摩材６０を
溶融させ、ロータ１０の摩擦面１２゜１４の半径方向に
形成した溝６２．６４の底面に吹き付けて積層させたも
のである。本実施例では、許容摩耗量が１鶴で、深さ０
．６ ｗの溝６２．６４に耐摩材６０が０．１５ ｍｍ
の厚さで溶射されている。Further examples are shown in FIGS. 8 and 9. (The reference numerals are the same as in the previous embodiment.) This is made by melting the wear-resistant material 60 and spraying it onto the bottom surface of the grooves 62 and 64 formed in the radial direction of the friction surface 12 and 14 of the rotor 10. be. In this example, the allowable wear amount is 1 crane, and the depth is 0.
．． 6 W groove 62.64 with wear resistant material 60 0.15 mm
It is sprayed to a thickness of .
これによって、ロータ１０の各摩擦面１２．１４が０．
４５Ｂ以上摩耗すると耐摩材６０が表れることとなる。This causes each friction surface 12.14 of the rotor 10 to be 0.0.
If the wear exceeds 45B, the wear-resistant material 60 will appear.
この場合には上記二実施例の材料の全てを使用可能であ
るという利点があり、さらに、第９図から明らかなよう
に、第７図の実施例に比較して、溝を浅く長く形成する
ことができるため、その部分のロータの厚さが薄くなり
、強度が低下することがない利点がある。In this case, there is an advantage that all of the materials of the above two embodiments can be used, and furthermore, as is clear from Fig. 9, the grooves are formed shallower and longer than in the embodiment of Fig. 7. This has the advantage that the thickness of the rotor in that area becomes thinner and the strength does not decrease.
その他、いちいち例示はしないが当業者の知識に基づい
て種々の変形、改良を施した態様で本発明を実施し得る
ことは勿論である。In addition, it goes without saying that the present invention can be implemented in various modifications and improvements based on the knowledge of those skilled in the art, although not illustrated individually.
第１図は本発明の一実施例である使用前のディスクブレ
ーキロータを示す正面図である。第２図は第１図におけ
るｘ−ｘ ’断面図、第３図は同じ＜ ｙ−ｙ ’断面
図である。第４図は、第１図と同じディスクブレーキロ
ータが摩耗限度に達した場合のＹ −Ｙ“断面図である
。第５図は本実施例のディスクブレーキの正面断面図で
ある。第６図および第７図は本発明の別の実施例である
ディスクブレーキロータを示す図であり、第６図は第２
図に相当し、第７図は第３図に相当する図である。
第８図および第９図は本発明のさらに別の実施例である
ディスクブレーキロータを示す図であり、第８図は第２
図に、第９図は第３図にそれぞれ相当する図である。
１０：ディスクブレーキロータ
１２．１４：摩擦面
４０．５０．６０：耐摩材FIG. 1 is a front view showing a disc brake rotor before use, which is an embodiment of the present invention. FIG. 2 is a sectional view taken along line xx' in FIG. 1, and FIG. 3 is a sectional view taken along line y-y'. FIG. 4 is a Y-Y" sectional view when the same disc brake rotor as in FIG. 1 reaches its wear limit. FIG. 5 is a front sectional view of the disc brake of this embodiment. and FIG. 7 are views showing a disc brake rotor which is another embodiment of the present invention, and FIG.
FIG. 7 is a diagram corresponding to FIG. 3. 8 and 9 are diagrams showing a disc brake rotor which is still another embodiment of the present invention, and FIG.
In the figure, FIG. 9 is a diagram corresponding to FIG. 3, respectively. 10: Disc brake rotor 12.14: Friction surface 40.50.60: Wear-resistant material
Claims (1)
クブレーキロータにおいて、 そのロータの摩擦面に、そのロータの材料よりも耐摩耗
性の優れた耐摩材を、局部的に、かつ、摩擦面の許容摩
耗限度より僅かに浅く埋設したことを特徴とする摩耗限
度告知可能なディスクブレーキロータ。[Claims] In a disc brake rotor having a friction surface on which a brake pad slides, a wear-resistant material having higher wear resistance than the material of the rotor is locally applied to the friction surface of the rotor. A disc brake rotor whose wear limit can be notified, characterized in that the rotor is buried slightly shallower than the allowable wear limit of the friction surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21309986A JPS6367434A (en) | 1986-09-10 | 1986-09-10 | Disk brake rotor able to notify wearing limit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21309986A JPS6367434A (en) | 1986-09-10 | 1986-09-10 | Disk brake rotor able to notify wearing limit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6367434A true JPS6367434A (en) | 1988-03-26 |
Family
ID=16633551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21309986A Pending JPS6367434A (en) | 1986-09-10 | 1986-09-10 | Disk brake rotor able to notify wearing limit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6367434A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0670434A1 (en) * | 1994-03-05 | 1995-09-06 | BPW Bergische Achsen Kommanditgesellschaft | Brake disc for vehicle disc brakes |
| CN102248984A (en) * | 2010-05-21 | 2011-11-23 | 永克达工业股份有限公司 | Wear-resisting structure for disc plate |
-
1986
- 1986-09-10 JP JP21309986A patent/JPS6367434A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0670434A1 (en) * | 1994-03-05 | 1995-09-06 | BPW Bergische Achsen Kommanditgesellschaft | Brake disc for vehicle disc brakes |
| CN102248984A (en) * | 2010-05-21 | 2011-11-23 | 永克达工业股份有限公司 | Wear-resisting structure for disc plate |
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