JPH0133695B2 - - Google Patents
Info
- Publication number
- JPH0133695B2 JPH0133695B2 JP55127147A JP12714780A JPH0133695B2 JP H0133695 B2 JPH0133695 B2 JP H0133695B2 JP 55127147 A JP55127147 A JP 55127147A JP 12714780 A JP12714780 A JP 12714780A JP H0133695 B2 JPH0133695 B2 JP H0133695B2
- Authority
- JP
- Japan
- Prior art keywords
- brake
- drum
- cam
- pair
- pin
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000003754 machining Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003672 processing method Methods 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
- F16D65/0006—Noise or vibration control
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Description
【発明の詳細な説明】
本発明は主としてオートバイその他の自動２輪
車用ドラムブレーキ装置におけるブレーキドラム
の加工方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention mainly relates to a method of machining a brake drum in a drum brake device for motorcycles and other two-wheeled vehicles.
一般にブレーキドラム内に、先端間のブレーキ
カムと根部端間のアンカピンとを介してリーデイ
ング側とトレーリング側とに配設される１対のブ
レーキシユを、その外周面の端部において除去し
て該端部にドラム内周面との間の〓間を形成させ
て、制動の際のブレーキ音の発生を防止させるよ
うにしたものは例えば実公昭35−6626号公報によ
つて知られている。 Generally, a pair of brake shoes are installed in the brake drum on the leading side and the trailing side via the brake cam between the tips and the anchor pin between the root ends, and are removed at the end of the outer peripheral surface. For example, Japanese Utility Model Publication No. 35-6626 discloses a device in which a gap is formed between the end portion and the inner circumferential surface of the drum to prevent the generation of brake noise during braking.
しかしこの場合ブレーキシユの外周面の端部の
除去は上記公報にも開示されているように長い緩
かな傾斜面に形成されるのを一般とし、このた
め、その傾斜面の加工工数が嵩む不都合があつ
た。 However, in this case, the end of the outer circumferential surface of the brake shoe is generally removed to form a long, gently sloped surface, as disclosed in the above-mentioned publication. It was hot.
本発明はかゝる不都合を改良することを目的と
したものでブレーキドラム内に、先端間のブレー
キカムと、根部端間のアンカピンとを介してリー
デイング側とトレーリング側とに配設される１対
のブレーキシユを、その外周面の端部において除
去して、該端部にドラム内周面との間に〓間を形
成させるものにおいて、前記リーデイング側とト
レーリング側との双方１対のブレーキシユを、前
記ドラム内のブレーキカムとアンカピンとの幅よ
り一定の距離2aだけ幅の狭いカムとピンとによ
り狭い間隔に近接させて互に固定し、この固定状
態において前記１対のブレーキシユを前記ドラム
外径Ｄより一定の距離2aだけ小径の円形に加工
することを特徴とする。 The present invention aims to improve such disadvantages, and is provided in the brake drum on the leading side and the trailing side via the brake cam between the tips and the anchor pin between the root ends. A pair of brake shoes are removed at the ends of their outer circumferential surfaces to form a space between the ends and the inner circumferential surface of the drum, in which a pair of brake shoes are removed on both the leading side and the trailing side. The brake shoes are fixed in close proximity to each other by a cam and a pin that are narrower than the width of the brake cam and the anchor pin in the drum by a certain distance 2a, and in this fixed state, the pair of brake shoes are fixed to each other at a narrow interval 2a than the width of the brake cam and the anchor pin in the drum. It is characterized by processing into a circle with a smaller diameter by a certain distance 2a from the outer diameter D.
本発明実施例の１例を別紙図面に付説明すると
第１図はドラムブレーキ装置を示し、そのブレー
キドラム１内に先端間のブレーキカム２と、根部
端間のアンカピン３とを介してその両外側にリー
デイング側とトレーリング側との１対に配設され
るブレーキシユ４，５は中間のばね６，６で互に
内方に弾発されると共にその外周面のカム２側の
端部４ａ，５ａとピン３側の端部４ｂ，５ｂとに
おいて除去して該端部４ａ，４ｂ，５ａ，５ｂに
ドラム１の内周面との間に多少の各〓間７，７が
形成されている。 An example of an embodiment of the present invention will be explained with reference to the attached drawings. FIG. 1 shows a drum brake device, in which a brake cam 2 between the tips and an anchor pin 3 between the root ends are connected to each other in the brake drum 1. The brake shoes 4, 5, which are arranged in a pair on the outside on the leading side and the trailing side, are urged inwardly by intermediate springs 6, 6, and the end 4a of the outer peripheral surface on the cam 2 side , 5a and the ends 4b, 5b on the pin 3 side to form some gaps 7, 7 between the ends 4a, 4b, 5a, 5b and the inner peripheral surface of the drum 1. There is.
そして本発明は前記ブレーキシユ４，５の端部
の加工を容易にするものであつて、両シユ４，５
は、第２図示のように前記したカム２及びピン３
による間隔よりも狭い間隔に互に近接させて固定
した状態とし、この状態でその外周面を加工して
比較的小径の円形に形成させる。これを詳述すれ
ば、アンカピン３を直径d1とした場合、これに代
え一定の距離2aだけ狭いd1―2aの幅の扁平ピン
３ａを使用し、更にカム２を直径d2とした場合、
これに代え一定の距離2aだけ狭いd2―2aの小径
ピン２ａを使用し、両シユ４，５をこれらを介し
て互に圧接させて固定した状態とし、次でこの組
立体に対し、その外周面にグラインダ９その他に
よる加工を施し、これをドラム１の内径をＤとし
た場合Ｄ―2aの外径、即ちＤ／２―ａの半径の
円形に作る。次で両シユ４，５を互に分離して前
記した態様にブレーキドラム１内に配設するもの
で、これは第１図示の通りであり、各シユ４，５
はＤ／２―ａの半径を有し、ドラム１の中心点ｏ
から一側と他側とに夫々距離ａだけ偏心した点０
１，０2を中心としてセツトされた状態となり、か
くて各シユ４，５はその中央部で該ドラム１の内
周面に略接すると共に各両端部４ａ，４ｂ及び５
ａ，５ｂに各〓間７，８及び７，８をもつた状態
に得られる。 The present invention facilitates machining of the end portions of the brake shoes 4 and 5.
As shown in the second figure, the cam 2 and pin 3 described above are
In this state, the outer peripheral surfaces are processed to form a circular shape with a relatively small diameter. To explain this in detail, when the anchor pin 3 has a diameter of d 1 , instead of this, a flat pin 3a with a width of d 1 - 2a, which is narrower by a certain distance 2a, is used, and the cam 2 has a diameter of d 2 . ,
Instead, a small-diameter pin 2a of d 2 -2a, which is narrow by a certain distance 2a, is used, and both shoes 4 and 5 are pressed together and fixed through these pins, and then the assembly is The outer circumferential surface is processed by a grinder 9 or the like to form a circular shape having an outer diameter of D-2a, that is, a radius of D/2-a, where D is the inner diameter of the drum 1. Next, both the shoes 4 and 5 are separated from each other and arranged in the brake drum 1 in the manner described above, as shown in the first figure.
has a radius of D/2−a, and the center point o of drum 1
A point 0 that is eccentric by a distance a on one side and the other side from
1 , 0 2 as the center, each of the shoes 4 and 5 is in approximate contact with the inner circumferential surface of the drum 1 at its center, and each end portion 4 a , 4 b , and 5 is in contact with the inner circumferential surface of the drum 1 .
A and 5b are obtained with gaps 7, 8 and 7, 8, respectively.
このように本発明によるときはリーデイング側
とトレーリング側との１対のブレーキシユはこれ
をブレーキドラム内のブレーキカムとアンカピン
との幅より一定の距離2aだけ幅の狭いカムとピ
ンとにより狭い間隔に近接させて互に固定し、こ
の固定状態において、その一対のブレーキシユを
ブレーキドラム外径Ｄより一定の距離２ａだけ小
径の円形に加工したものであるから、その加工が
容易であつて、而も該ブレーキシユはブレーキド
ラムの中心点から一側と他側とに夫々距離ａだけ
偏心した点を中心としてセツトするだけでシユは
その中心部でブレーキドラムの内周面に略接する
と共に各両端部４ａ，４ｂ，５ａ，５ｂに各〓間
７，８をもつた状態にセツトされてその制動時の
鳴きを防止できる等の効果を有する。 In this way, according to the present invention, the pair of brake shoes on the leading side and the trailing side are narrowly spaced by a cam and a pin whose width is narrower by a certain distance 2a than the width between the brake cam and the anchor pin in the brake drum. They are fixed close to each other, and in this fixed state, the pair of brake shoes are machined into a circular shape with a smaller diameter by a certain distance 2a from the outer diameter D of the brake drum, so the machining is easy and The brake shoe is simply set at a point that is eccentric by a distance a on one side and the other side from the center point of the brake drum, so that the shoe substantially contacts the inner circumferential surface of the brake drum at its center and at both ends 4a. , 4b, 5a, and 5b are set with gaps 7 and 8, respectively, and have the effect of preventing squealing during braking.
第１図はドラムブレーキ装置の正面図、第２図
は本発明の加工方法の１例の説明線図である。
１……ブレーキドラム、２……ブレーキカム、
３……アンカピン、４，５……ブレーキシユ、４
ａ，４ｂ，５ａ，５ｂ……端部、７……〓間。
FIG. 1 is a front view of a drum brake device, and FIG. 2 is an explanatory diagram of one example of the processing method of the present invention. 1...brake drum, 2...brake cam,
3... Anchor pin, 4, 5... Brake shoe, 4
a, 4b, 5a, 5b... end, 7... 〓 between.
Claims (1)
と、根部端間のアンカピンとを介してリーデイン
グ側とトレーリング側とに配設される１対のブレ
ーキシユを、その外周面の端部において除去し
て、該端部にドラム内周面との間に〓間を形成さ
せるものにおいて、前記リーデイング側とトレー
リング側との双方１対のブレーキシユを、前記ド
ラム内のブレーキカムとアンカピンとの幅より一
定の距離2aだけ幅の狭いカムとピンとにより狭
い間隔に近接させて互に固定し、この固定状態に
おいて前記１対のブレーキシユを前記ドラム外径
Ｄより一定の距離2aだけ小径の円形に加工する
ことを特徴とするドラムブレーキ装置におけるブ
レーキシユの加工方法。1. A pair of brake shoes disposed in the brake drum on the leading side and the trailing side via the brake cam between the tips and the anchor pin between the root ends are removed at the ends of the outer peripheral surface thereof. , in which a gap is formed between the end portion and the inner circumferential surface of the drum, the pair of brake shoes on both the leading side and the trailing side have a width that is more constant than the width of the brake cam and the anchor pin in the drum. They are fixed to each other at a narrow distance 2a by a narrow cam and a pin, and in this fixed state, the pair of brake shoes are machined into a circular shape having a smaller diameter by a certain distance 2a than the outer diameter D of the drum. A method for machining a brake shoe in a drum brake device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12714780A JPS5754737A (en) | 1980-09-16 | 1980-09-16 | Drum brake and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12714780A JPS5754737A (en) | 1980-09-16 | 1980-09-16 | Drum brake and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5754737A JPS5754737A (en) | 1982-04-01 |
| JPH0133695B2 true JPH0133695B2 (en) | 1989-07-14 |
Family
ID=14952773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12714780A Granted JPS5754737A (en) | 1980-09-16 | 1980-09-16 | Drum brake and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5754737A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1163031A (en) * | 1997-08-27 | 1999-03-05 | Nisshinbo Ind Inc | Drum brake device |
| KR101491331B1 (en) * | 2013-10-21 | 2015-02-06 | 현대자동차주식회사 | Brake shoe for air brake system |
-
1980
- 1980-09-16 JP JP12714780A patent/JPS5754737A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5754737A (en) | 1982-04-01 |
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