JPS6221139Y2 - - Google Patents
Info
- Publication number
- JPS6221139Y2 JPS6221139Y2 JP1981084104U JP8410481U JPS6221139Y2 JP S6221139 Y2 JPS6221139 Y2 JP S6221139Y2 JP 1981084104 U JP1981084104 U JP 1981084104U JP 8410481 U JP8410481 U JP 8410481U JP S6221139 Y2 JPS6221139 Y2 JP S6221139Y2
- Authority
- JP
- Japan
- Prior art keywords
- shoe
- web
- rim
- brake
- pipe material
- 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
- 239000000463 material Substances 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 206010040844 Skin exfoliation Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
Description
【考案の詳細な説明】
本考案はドラムブレーキに用いるブレーキシユ
ーのシユー本体の改良に関するものである。[Detailed Description of the Invention] The present invention relates to an improvement of the shoe body of a brake shoe used in a drum brake.
一般に、ドラムブレーキに用いるブレーキシユ
ーにおいては、そのシユー本体が、わん曲平板で
あるリムと、このリムの内周面に沿つて一側縁が
当接固着されたウエブからなる断面Ｔ字型に構成
されてなるものが普通であり、この２部片からな
る本体は夫々の部片を各別に打抜き、溶接にて固
着させる加工工程を必要としている。しかしこの
ような構成では、プレス機、プレス型、溶接機な
どの加工機械を工程順に配置して、順次この加工
工程を経てシユー本体を形成させねばならず、加
工工数の多いことなどからコスト的に不利となる
他、ウエブのわん曲した形状よりして、使用材料
の歩留りもあまりよくなく、溶接不良などの問題
も考慮しなければならないものである。 Generally, in a brake shoe used for a drum brake, the shoe body has a T-shaped cross section consisting of a rim, which is a curved flat plate, and a web, one side edge of which is abutted and fixed along the inner peripheral surface of the rim. This two-part main body requires a processing process in which each part is separately punched out and then welded together. However, with this configuration, processing machines such as press machines, press dies, and welding machines must be arranged in the order of the processes, and the shoe body must be formed through these processing steps one after another, resulting in high costs due to the large number of processing steps. In addition to this being disadvantageous, due to the curved shape of the web, the yield of materials used is not very good, and problems such as poor welding must also be taken into consideration.
そこで本考案においては、断面Ｔ字状という単
純な平板加工では形成し難いシユー本体を、その
使用材を円筒管あるいは三角筒管等のパイプ材と
して加工工数の削減、溶接工程の省略を図り、合
わせてリムおよびウエブの部分を２重構造のもの
として、使用材自体の厚みを低減させることによ
り加工の容易化を図つたものである。 Therefore, in the present invention, the shoe body, which has a T-shaped cross section and is difficult to form by simple flat plate processing, is made of pipe material such as a cylindrical tube or triangular tube, reducing the number of processing steps and omitting the welding process. In addition, the rim and web portions have a double structure to reduce the thickness of the material used to facilitate processing.
また本考案によれば、バツキングプレート上に
摺動可能をなすよう装架されるブレーキシユー
は、パイプ材の屈曲にて弧状の端縁をなすリム側
縁が該バツキングプレートに当接するためその摺
動抵抗は軽減化され、従来この部分に塗布してい
たグリースも不用になつて、このグリースがドラ
ム摺動面に付着する結果、ブレーキ効きの低下や
不安定化の問題も全く考慮する必要がないという
利益も得られる。 Further, according to the present invention, in the brake shoe that is slidably mounted on the bucking plate, the rim side edge, which forms an arcuate edge due to the bending of the pipe material, comes into contact with the bucking plate. Therefore, the sliding resistance is reduced, and the grease that was conventionally applied to this part is no longer needed, and as a result of this grease adhering to the drum sliding surface, the problem of reduced braking effectiveness and instability is completely taken into consideration. You also get the benefit of not having to do it.
而して本考案の要旨は、金属管材の押潰により
断面Ｔ字状の２重板構造をなすように形成され、
かつ２重の板を複数の個所で相互に溶接したこと
を特徴とするブレーキシユーのシユー本体であ
る。 The gist of the present invention is to form a double plate structure with a T-shaped cross section by crushing a metal tube,
The shoe body of the brake shoe is characterized in that double plates are welded together at a plurality of locations.
以下本考案を図面に示す実施例に基づいて説明
する。 The present invention will be described below based on embodiments shown in the drawings.
第１図は本考案のブレーキシユーのシユー本体
１を構成する素材としてて丸管を示しており、形
成すべきシユー本体１の寸法等に応じて、所定の
厚肉を有するパイプを裁断して提供される。 Figure 1 shows the main body of the brake shoe of the present invention.
A round tube is shown as the material constituting the shoe body 1 , which is provided by cutting a pipe having a predetermined thickness depending on the dimensions of the shoe body 1 to be formed.
第２図イ，ロは、夫々このような丸管を断面略
Ｔ字状の形状に径方向への押潰にて形成した状態
を示しており、この状態で同形成体はリム相当部
２′、およびウエブ相当部３′が備えられる。 Figures 2A and 2B show a state in which such a round tube is formed into a substantially T-shaped cross section by crushing it in the radial direction, and in this state, the formed body is in the rim equivalent portion 2. ', and a web equivalent part 3'.
そしてこのような断面略Ｔ字状の直状形状をな
す形成体は、図示しないロール成形の工程を経て
弓形に加工され、その外周面にライニング４を固
着した第３図に示すブレーキシユーとして構成さ
れる。このときシユー本体１は、リム２およびウ
エブ３がいずれも２重板構造をなしているため、
これら２重の板が一体のものとして強固になるよ
う適宜スポツト溶接５，５が施される。 The formed body having a straight shape with a substantially T-shaped cross section is processed into an arcuate shape through a roll forming process (not shown), and a lining 4 is fixed to the outer peripheral surface of the formed body to form a brake shoe as shown in FIG. configured. At this time, since the rim 2 and web 3 of the shoe main body 1 have a double plate structure,
Spot welding 5, 5 is applied as appropriate to make these double plates strong as a single piece.
このような構成よりなるブレーキシユーのシユ
ー本体は、パイプ材の屈曲（押潰）加工によつて
略Ｔ字状の断面形状をなすように形成され、これ
をロール加工することにてシユー本体が加工形成
されるため、その加工工数は従来のものに比べて
低減され、また溶接も不用であるため、加工工数
の低減、部材の歩留り向上など種々の利益が得ら
れる他、第３図より明らかな如く、リムの一側縁
は弧状の端縁形状をなすために、これがドラムブ
レーキのバツキングプレートに摺動する際の抵抗
も小さいという前述した効果も得られることにな
る。 The shoe body of the brake shoe having such a configuration is formed by bending (squeezing) pipe material to have a substantially T-shaped cross-sectional shape, and by rolling it, the shoe body is formed. Since it is formed by processing, the processing man-hours are reduced compared to conventional ones, and since welding is not required, various benefits such as a reduction in processing man-hours and an improvement in the yield of parts can be obtained. As is clear, since one side edge of the rim has an arcuate edge shape, the above-mentioned effect of reducing resistance when sliding on the backing plate of the drum brake can also be obtained.
第４図〜第６図は本考案の実施例を示してお
り、そのシユー本体６のウエブ８の両端部は、リ
ム７よりも長大に延出するように設けて、例えば
油圧作動装置等に係合するための屈曲当て金部９
を形成させるようにしたものである。なお、１０
はライニング、１１はスポツト溶接部である。 4 to 6 show an embodiment of the present invention, in which both ends of the web 8 of the shoe main body 6 are provided so as to extend longer than the rim 7, and are used, for example, in a hydraulically actuated device. Bent fitting part 9 for engagement
is formed. In addition, 10
11 is a lining, and 11 is a spot weld.
以上述べた如く、本考案よりなるドラムブレー
キに用いるブレーキシユーのシユー本体は、その
使用材をパイプ材として、従来の平板材により構
成していたシユー本体に比べ、加工工数も少なく
かつ容易となり、またシユーリムとウエブの溶接
不良等の難点もないなど製品歩留りも向上するな
どの種々の利益があり、その実用上の利益は大な
るものである。 As mentioned above, the shoe body of the brake shoe used in the drum brake according to the present invention is made of pipe material, and requires fewer man-hours and is easier to process than the shoe body constructed from conventional flat plate material. In addition, there are various benefits such as improved product yield and no problems such as poor welding between the rim and the web, and the practical benefits are great.
なお本考案の要旨は、前述した実施例のものに
限定されるものではなく、例えばパイプ材の押潰
加工後に所定の長尺寸法に裁断するようにしても
よく、またその断面略Ｔ字状の形状も、第２図
イ，ロに示す他、２重板構造の間にブレーキノイ
ズ低減化のためゴム等を挾持させるなど種々の変
更態様も考えられるものである。 The gist of the present invention is not limited to the above-mentioned embodiments; for example, the pipe material may be crushed and then cut into a predetermined length, or the cross section may be approximately T-shaped. In addition to the shape shown in FIGS. 2A and 2B, various modifications are possible, such as sandwiching rubber or the like between the double plate structure to reduce brake noise.
なお従来例として実公昭40−13698号がある
が、本考案のごとくパイプ材でなく板材であり、
２枚のウエブ部分のドラム中心側がつながつてい
ない。そのためブレーキ時にブレーキシユーの長
手方向にねじり変形が生じると、従来例において
は、２枚のウエブ部分にねじり応力が作用し、ウ
エブ部分の溶接部がはがれるおそれがある。一方
本考案においてはパイプ材を使用しているため２
枚のウエブ部分のドラム中心側がつながつてい
る。そのため上記のねじり応力による溶接部のは
がれのおそれは従来例より極めて少ない。 As a conventional example, there is Utility Model Publication No. 40-13698, but it is made of plate material instead of pipe material as in the present invention.
The two web parts are not connected at the center of the drum. Therefore, when torsional deformation occurs in the longitudinal direction of the brake shoe during braking, in the conventional example, torsional stress acts on the two web portions, and there is a risk that the welded portion of the web portions may peel off. On the other hand, since the present invention uses pipe material,
The web parts of the two sheets are connected at the center of the drum. Therefore, the risk of peeling of the welded portion due to the above-mentioned torsional stress is much lower than in the conventional example.
図面は本考案の実施例を示すものであり第１図
〜第３図は第１の実施例に関し、第１図は使用パ
イプ材の斜視図、第２図イ，ロは夫々パイプ材を
断面略Ｔ字状に押潰形成した形成体を示す図、第
３図はブレーキシユーの斜視図である。第４図〜
第５図は第２の実施例に関し、第４図は使用パイ
プ材の斜視図、第５図はパイプ材を断面略Ｔ字状
に押潰形成した形成体を示す図、第６図はブレー
キシユーの平面図である。
１，６：シユー本体、２，７：リム、２′，
７′：リム相当部、３，８：ウエブ、３′，８′：
ウエブ相当部、４，１０：ライニング、５，１
１：スポツト溶接部、９：当て金部。
The drawings show an embodiment of the present invention, and FIGS. 1 to 3 relate to the first embodiment. FIG. 1 is a perspective view of the pipe material used, and FIGS. 2A and 2B are cross-sectional views of the pipe material. FIG. 3 is a perspective view of the brake shoe. Figure 4~
Fig. 5 relates to the second embodiment, Fig. 4 is a perspective view of the pipe material used, Fig. 5 is a view showing a formed body formed by crushing the pipe material into a substantially T-shaped cross section, and Fig. 6 is the brake. FIG. 1 , 6 : shoe body, 2, 7: rim, 2',
7': Rim equivalent part, 3, 8: Web, 3', 8':
Web equivalent part, 4, 10: Lining, 5, 1
1: spot welded part, 9: padding part.
Claims (1)
をなすように形成され、かつ複数個所で２重の板
同士を相互に溶接したことを特徴とするブレーキ
シユーのシユー本体。 A shoe body of a brake shoe characterized in that it is formed by crushing a metal tube material to form a double plate structure with a T-shaped cross section, and the double plates are welded to each other at a plurality of locations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981084104U JPS6221139Y2 (en) | 1981-06-08 | 1981-06-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981084104U JPS6221139Y2 (en) | 1981-06-08 | 1981-06-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57194941U JPS57194941U (en) | 1982-12-10 |
| JPS6221139Y2 true JPS6221139Y2 (en) | 1987-05-29 |
Family
ID=29879479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981084104U Expired JPS6221139Y2 (en) | 1981-06-08 | 1981-06-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6221139Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4484145B2 (en) * | 2004-07-20 | 2010-06-16 | 日本ブレーキ工業株式会社 | Brake shoe manufacturing method |
| JP4571034B2 (en) * | 2005-07-15 | 2010-10-27 | 豊生ブレーキ工業株式会社 | Drum brake |
| JP4657890B2 (en) * | 2005-11-02 | 2011-03-23 | 豊生ブレーキ工業株式会社 | Drum brake |
| DE102007061105B4 (en) * | 2007-12-19 | 2018-05-03 | Robert Bosch Gmbh | Mounting tube and wiper system |
-
1981
- 1981-06-08 JP JP1981084104U patent/JPS6221139Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57194941U (en) | 1982-12-10 |
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