JPH0645429Y2 - Bicycle brake - Google Patents
Bicycle brakeInfo
- Publication number
- JPH0645429Y2 JPH0645429Y2 JP11530488U JP11530488U JPH0645429Y2 JP H0645429 Y2 JPH0645429 Y2 JP H0645429Y2 JP 11530488 U JP11530488 U JP 11530488U JP 11530488 U JP11530488 U JP 11530488U JP H0645429 Y2 JPH0645429 Y2 JP H0645429Y2
- Authority
- JP
- Japan
- Prior art keywords
- braking
- fixing member
- rotating body
- operating
- brake
- 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 - Lifetime
Links
Landscapes
- Braking Arrangements (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は自転車用ブレーキ、詳しくは、前輪の回転を制
動するのに使用する自転車用ブレーキに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a bicycle brake, and more particularly, to a bicycle brake used for braking rotation of front wheels.
従来、この種ブレーキとして、例えば、JISD9414に見ら
れるように、バンドブレーキが知られている。このバン
ドブレーキは、前輪ハブに、内周面に制動面をもった円
筒状の回転体を設けて、この回転体の内側に、前記制動
面に圧接する一対の半円形の制動体を内装する一方、前
記前輪ハブのハブ軸に円板状の固定部材を支持し、この
固定部材の一側部を、支持体を介して自転車フレームに
支持し、固定部材の回転を阻止する一方、前記固定部材
に、前記各制動体の一端を枢支すると共に、前記各制動
体の他端縁間に介装するカムをもった操作体を枢支し
て、この操作体に操作ワイヤを取り付け、該ワイヤを、
自転車のハンドルバーに設けるブレーキレバーの操作に
より引き操作して、前記制動体を回転体の制動面に圧接
し、制動を行う如く構成されている。Conventionally, as this type of brake, a band brake is known, for example, as seen in JIS D9414. In this band brake, a cylindrical rotating body having a braking surface on the inner peripheral surface is provided on a front wheel hub, and a pair of semicircular braking bodies press-contacting the braking surface are provided inside the rotating body. On the other hand, a disc-shaped fixing member is supported on the hub axle of the front wheel hub, and one side portion of the fixing member is supported on the bicycle frame via a support to prevent the fixing member from rotating, while the fixing member is fixed. The member is pivotally supported at one end of each of the braking bodies, and pivotally supports an operating body having a cam interposed between the other ends of the braking bodies, and an operating wire is attached to the operating body. Wire
The brake lever provided on the handlebar of the bicycle is operated to pull the brake body to press the braking body against the braking surface of the rotating body for braking.
所が、従来におけるバンドブレーキなどの自転車用ブレ
ーキは、前記ワイヤの引き操作量の増大に伴って制動力
が大きくなるようになっているため、自転車走行中、前
輪用ブレーキのみを作動させる場合、あるいは、後輪用
ブレーキを前輪ブレーキよりも遅れて作動させる場合、
ブレーキレバーの操作量があまり大きくならないように
調節しながらブレーキレバー操作をすることにより、前
輪用ブレーキに効き過ぎが生じないようにしながらブレ
ーキ操作していた。つまり、ブレーキが効き過ぎないよ
うに人為的に調節する必要があった。However, a conventional bicycle brake such as a band brake is designed so that the braking force increases with an increase in the amount of pulling operation of the wire, and therefore, when only the front wheel brake is operated during bicycle traveling, Or if you want to apply the rear wheel brake later than the front wheel brake,
By operating the brake lever while adjusting it so that the amount of operation of the brake lever does not become too large, the brakes for the front wheels were operated while preventing excessive braking. In other words, it was necessary to artificially adjust the brake so that it would not work too hard.
本考案の目的は、操作ワイヤを引き操作して制動するこ
とができながら、効き過ぎ防止の操作量の人為的な加減
を不要にできるようにすることにある。SUMMARY OF THE INVENTION An object of the present invention is to make it possible to pull the operation wire to brake and to eliminate the need for artificially adjusting the operation amount for preventing over-effect.
本考案による自転車用ブレーキにあっては、目的達成の
ために、冒頭に記したものにおいて、前記固定部材を、
自転車のフレームに支持する支持体を設けて、この支持
体に前記固定部材を、前記回転体の回転方向に一定範囲
揺動可能に支持し、前記制動体の回転体への圧接時、前
記回転体に従動して揺動するごとく成すと共に、前記操
作体を、前記固定部材の前記従動時における揺動方向の
操作で前記制動体が回転体に圧接するように前記固定部
材に取り付けてあることを特徴とする。In order to achieve the object of the bicycle brake according to the present invention, in the one described at the beginning, the fixing member is
A support body is provided for supporting the frame of the bicycle, and the fixing member is supported on the support body so as to be swingable in a certain direction in the rotation direction of the rotating body. When the braking body is pressed against the rotating body, the rotation is performed. The operating body is attached to the fixing member such that the braking body is pressed against the rotating body by the operation of the fixing member in the swinging direction when the fixing member is driven. Is characterized by.
操作ワイヤの引き操作によって操作体を作動させると、
操作体の作動のために、制動体が回転体に圧接して制動
する。この制動時、回転体の回転が制動体および操作体
を介して固定部材に作用し、この固定部材が回転体に従
動して揺動することになり、固定部材の揺動に伴い操作
ワイヤに作用する力が自動的に減少し、この減少分だけ
制動体の回転体への圧接が弱くなって制動力が小さくな
る。When the operating body is operated by pulling the operating wire,
Due to the operation of the operating body, the braking body presses against the rotating body to brake. During this braking, the rotation of the rotating body acts on the fixing member via the braking body and the operating body, and the fixing member swings following the rotating body. The acting force is automatically reduced, and the amount of this reduction weakens the pressure contact of the braking body with the rotating body to reduce the braking force.
操作ワイヤの引き操作量が大きくなる領域で、回転体の
回転を利用して操作ワイヤに作用する力を自動的に減少
させて、制動力を小さくできることにより、操作ワイヤ
を引っ張るだけの簡単なブレーキ操作を行うだけで、ブ
レーキの効き過ぎを伴わない適切な制動操作ができるよ
うになった。In a region where the operation wire pulling operation amount is large, the force acting on the operation wire is automatically reduced by utilizing the rotation of the rotating body, and the braking force can be reduced, so a simple brake that only pulls the operation wire. By just performing the operation, it became possible to perform appropriate braking operation without excessive braking.
しかも、固定部材を支持体に対し一定範囲揺動可能に支
持すればよいのであるから、構造が非常に簡単であり、
安価に提供できるのである。Moreover, since it suffices to support the fixing member so that it can swing within a certain range with respect to the support, the structure is very simple,
It can be provided at low cost.
〔実施例〕 第１図に示したブレーキは、内拡式バンドブレーキであ
って、内周面に制動面（1a）をもち、自転車の前輪ハブ
（Ｈ）におけるハブ鍔より外方のハブ胴（H1）に一体に
設ける回転体（１）の制動面（1a）内側に、該制動面に
対接する円弧状の接触面をもった一対の制動体（２）を
内装すると共に、前記前輪ハブ（Ｈ）のハブ軸（H2）に
固定部材（３）を支持する一方、前記固定部材（３）
に、前記各制動体（２）の一端を枢支すると共に、前記
各制動体（２）の他端縁間に介装するカム（41）をもっ
た操作体（４）を枢支し、この操作体（４）に操作ワイ
ヤ（Ｗ）の一端を取付けて、該ワイヤ（Ｗ）を、自転車
のハンドルバーに設けるブレーキレバーの操作により引
き操作して、前記制動体（２）を回転体（１）の制動面
に圧接し、制動を行う如く構成したものである。前記操
作体（４）は、枢支軸（５）を介して枢支し、その先端
部に前記ワイヤ（Ｗ）の一端をワイヤ受け（10）を介し
て係止しており、又、前記枢支軸（５）の端部に前記カ
ム（41）を設けている。又、前記制動体（２）間には、
これら制動体（２）を離反方向に付勢するリターンばね
（図示せず）を設けている。[Embodiment] The brake shown in FIG. 1 is an inner expansion type band brake, which has a braking surface (1a) on the inner peripheral surface and is located outside the hub collar of the front wheel hub (H) of the bicycle. Inside the braking surface (1a) of the rotating body (1) provided integrally with (H 1 ), a pair of braking bodies (2) having arcuate contact surfaces that are in contact with the braking surface are internally provided, and the front wheel is also provided. While supporting the fixing member (3) on the hub shaft (H 2 ) of the hub (H), the fixing member (3)
In addition, one end of each of the braking bodies (2) is pivotally supported, and an operating body (4) having a cam (41) interposed between the other end edges of each of the braking bodies (2) is also pivotally supported. One end of the operation wire (W) is attached to the operation body (4), and the wire (W) is pulled by the operation of a brake lever provided on the handlebar of the bicycle, and the braking body (2) is rotated. The braking surface is configured to be pressed against the braking surface of (1) for braking. The operating body (4) is pivotally supported via a pivot shaft (5), and one end of the wire (W) is locked to a tip end portion of the operating body (4) via a wire receiver (10). The cam (41) is provided at the end of the pivot shaft (5). Moreover, between the braking bodies (2),
A return spring (not shown) for urging the braking bodies (2) in the separating direction is provided.
しかし、第１〜４図に示した実施例では、前記固定部材
（３）を、前輪ハブ（Ｈ）のハブ軸（H2）に挿通する貫
通孔をもった円板部（31）とこの円板部（31）の一側か
ら半径方向外方に延びる腕部（32）とにより形成して、
前記円板部（31）を前記ハブ軸（H2）に回転自在に支持
すると共に、前記腕部（32）を自転車のフレーム（Ｆ）
における前ホークに支持する支持体（６）を設けて、こ
の支持体（６）に、前記固定部材（３）の腕部（32）
を、前記回転体（１）の回転方向に一定範囲揺動可能に
支持し、前記制動体（２）の回転体（１）への圧接時、
前記回転体（１）に従動して前記一定範囲内で揺動する
如く成すと共に、前記操作体（４）を、前記固定部材
（３）の前記従動時における揺動方向の操作で前記制動
体（２）が回転体（１）に圧接するように前記枢支軸
（５）を介して前記固定部材（３）に取り付けたのであ
る。However, in the embodiment shown in FIGS. 1 to 4, the fixing member (3) and the disc portion (31) having a through hole for inserting the hub shaft (H 2 ) of the front wheel hub (H) are provided. It is formed by the arm portion (32) extending outward in the radial direction from one side of the disc portion (31),
The disc portion (31) is rotatably supported on the hub axle (H 2 ), and the arm portion (32) is attached to the bicycle frame (F).
A support body (6) for supporting the front fork in the above is provided, and the arm portion (32) of the fixing member (3) is provided on the support body (6).
Is supported so as to be swingable in a certain range in the rotation direction of the rotating body (1), and when the braking body (2) is pressed against the rotating body (1),
The operating body (4) is driven by the rotating body (1) to swing within the predetermined range, and the operating body (4) is operated by operating the fixing member (3) in the swinging direction when the fixed member (3) is driven. (2) is attached to the fixing member (3) via the pivot shaft (5) so that the rotating body (1) is in pressure contact.
以上の構成において、前記固定部材（３）の腕部（32）
は、前記円板部（31）のハブ軸（H2）への支持位置を中
心として揺動可能に支持するのであって、前記支持体
（６）を、前記フレーム（Ｆ）に固定するバンド構造の
固定部（61）と、該固定部（61）に対し外方に突出し、
前記腕部（32）の先端部分を揺動可能に支持する支持部
（62）とにより形成して、この支持部（62）に、前記腕
部（32）の非制動時における揺動を阻止する当接部（6
3）と、該当接部（63）と前記腕部（32）の揺動方向に
所定間隔を置いて対向する第１ばね受け（64）を設ける
と共に、前記腕部（32）に、前記ばね受け（64）と対向
する第２ばね受け（７）を移動可能に支持し、これらば
ね受け（64），（７）間に、前記腕部（32）を常時回転
体（１）の正回転方向と逆方向に付勢する押圧ばね
（８）を介装して、固定部材（３）の非制動時における
揺動を阻止し、前記押圧ばね（８）に抗して前記固定部
材（３）が一定範囲揺動できるように構成するのであ
る。又、前記腕部（32）の先端部分にはねじ孔をもった
折曲片（33）を設けて、この折曲片（33）のねじ孔に、
前記ばね受け（７）と当接して前記押圧ばね（８）の撓
み量、ひいては前記固定部材（３）の揺動量を調整する
調整ねじ（９）を螺着している。In the above structure, the arm portion (32) of the fixing member (3)
Supports the disc portion (31) so as to be swingable about a support position of the disc portion (31) on the hub shaft (H 2 ), and a band for fixing the support body (6) to the frame (F). The fixed portion (61) of the structure, and protruding outward with respect to the fixed portion (61),
The arm portion (32) is formed by a support portion (62) that swingably supports the tip portion of the arm portion (32), and the support portion (62) prevents the arm portion (32) from swinging when not braking. Contact part (6
3), and a first spring receiver (64) facing the contact portion (63) and the arm portion (32) at a predetermined interval in the swing direction of the arm portion (32), and the arm portion (32) is provided with the spring. A second spring bearing (7) opposed to the bearing (64) is movably supported, and the arm portion (32) is constantly rotated between the spring bearings (64) and (7) in the forward rotation of the rotating body (1). A pressing spring (8) biasing in the opposite direction is interposed to prevent the fixing member (3) from swinging when not braking, and against the pressing spring (8), the fixing member (3). ) Can be oscillated within a certain range. Further, a bending piece (33) having a screw hole is provided at the tip of the arm portion (32), and the bending hole (33) has a screw hole.
An adjusting screw (9) for adjusting the amount of bending of the pressing spring (8) and thus the amount of swing of the fixing member (3) is screwed into contact with the spring receiver (7).
又、前記支持体（６）には、アウター受け（20）を螺着
し、このアウター受け（20）に、前記ワイヤ（Ｗ）を案
内するアウター筒（Ｏ）の一端を支持している。An outer receiver (20) is screwed to the support body (6), and one end of an outer cylinder (O) for guiding the wire (W) is supported by the outer receiver (20).
しかし、以上の構成において、自転車が前進方向に走行
中、即ち、前記回転体（１）の第１図矢印（Ｘ）方向へ
の正回転時に制動を行う場合は、自転車のハンドルバー
に設けたブレーキレバーを把持して前記操作ワイヤ
（Ｗ）を引張ることにより行うのであって、前記ワイヤ
（Ｗ）の引張りにより操作体（４）が枢支軸（５）を中
心として前記回転体（１）の正回転方向に揺動すると共
に、カム（41）を介して一対の制動体（２）が回転体
（１）の制動面方向揺動し、これら制動体（２）が前記
制動面に圧接され、前記回転体（１）の回転に、前記ブ
レーキレバーに入力する操作力に対応した制動力を与え
ることができるのである。このとき、前記回転体（１）
の回転が、前記各制動体（２）および操作体（４）を介
して固定部材（３）に作用し、この固定部材（３）が、
前記押圧ばね（８）に抗して回転体（１）の正回転方向
に従動し、この固定部材（３）の従動に伴い前記ワイヤ
（Ｗ）に作用する力が自動的に減少することになる。即
ち、ブレーキレバーが、非操作位置から操作位置に動作
して、この操作位置の停止した状態で操作ワイヤ（Ｗ）
が弛緩したのと同じ結果となるのであって、この操作ワ
イヤ（Ｗ）の弛緩作用により、制動体（２）の回転体
（１）への圧接が弱くなり、前記回転体（１）に与える
制動力を小さくできるのである。つまり、ブレーキレバ
ーを非操作位置から操作位置に一気に操作しても、前記
回転体（１）の回転を利用して、操作量が大きくなる領
域で制動力を自動的に減少させることができるのであ
る。従って、自転車走行中前輪用ブレーキのみを作動さ
せたり、後輪用ブレーキを前輪用ブレーキより遅れて作
動させても、前輪用ブレーキの効き過ぎが発生しにくく
なる。However, in the above structure, when the bicycle is traveling in the forward direction, that is, when braking is performed when the rotating body (1) rotates forward in the direction of the arrow (X) in FIG. The operation is performed by gripping the brake lever and pulling the operation wire (W). The pulling of the wire (W) causes the operating body (4) to rotate about the pivot shaft (5) as the rotating body (1). Of the rotating body (1) through the cam (41), the pair of braking bodies (2) swing in the direction of the braking surface of the rotating body (1), and these braking bodies (2) are pressed against the braking surface. Thus, the rotation of the rotating body (1) can be given a braking force corresponding to the operating force input to the brake lever. At this time, the rotating body (1)
Rotation acts on the fixing member (3) via the braking body (2) and the operating body (4), and the fixing member (3)
The force acting on the wire (W) is automatically reduced by following the rotation direction of the rotating body (1) against the pressing spring (8) and following the fixing member (3). Become. That is, the brake lever moves from the non-operating position to the operating position, and when the operating position is stopped, the operating wire (W)
Has the same result as the relaxation, and the relaxation action of the operating wire (W) weakens the pressure contact of the braking body (2) to the rotating body (1) and gives it to the rotating body (1). The braking force can be reduced. That is, even if the brake lever is operated from the non-operating position to the operating position at once, the rotation of the rotating body (1) can be used to automatically reduce the braking force in the region where the operation amount increases. is there. Therefore, even if only the front wheel brake is operated while the bicycle is traveling, or if the rear wheel brake is operated later than the front wheel brake, the front wheel brake is less likely to be overly effective.
又、前記調整ねじ（９）を操作して固定部材（３）の揺
動量を調整することにより、最大制動力を任意に調整す
ることができるのである。Further, the maximum braking force can be arbitrarily adjusted by operating the adjusting screw (9) to adjust the swing amount of the fixing member (3).
尚、以上説明した実施例では、固定部材（３）を、ハブ
軸（H2）と支持体（６）とに支持したが、その他、前記
支持体（６）にのみ一定範囲揺動可能に支持してもよい
のであって、その支持構造は特に限定されるものでな
い。In the embodiment described above, the fixing member (3) is supported by the hub shaft (H 2 ) and the support body (6), but in addition, it is possible to swing the support member (6) within a certain range. It may be supported, and the support structure is not particularly limited.
又、以上の実施例では、内拡式バンドブレーキについて
説明したが、本考案のブレーキは、外締式バンドブレー
キ、或いは、複数個の転動体から成る制動体と該制動体
を回転体の半径方向に移動させるカム面をもった操作体
とを備えたドラム形式のブレーキであってもよいのであ
って、その構造は特に限定されるものではない。Further, in the above embodiments, the inner expansion type band brake has been described. However, the brake of the present invention is an external tightening type band brake, or a braking body composed of a plurality of rolling elements and a radius of the rotating body. The brake may be a drum type brake provided with an operating body having a cam surface that moves in the direction, and the structure thereof is not particularly limited.
第１図は本考案ブレーキを自転車に装着した状態での一
実施例を示す一部切欠き正面図、第２図はその縦断側面
図、第３図は同正面図、第４図は作動状態を示す説明図
である。 （１）……回転体、（２）……制動体、（３）……固定
部材、（４）……操作体、（６）……支持体FIG. 1 is a partially cutaway front view showing an embodiment in which the brake of the present invention is mounted on a bicycle, FIG. 2 is a longitudinal side view thereof, FIG. 3 is the same front view, and FIG. 4 is an operating state. FIG. (1) ... Rotating body, (2) ... Brake body, (3) ... Fixing member, (4) ... Operating body, (6) ... Support body
Claims (1)
（１）と、この回転体（１）に対接する制動体（２）
と、この制動体（２）を前記回転体（１）に圧接する方
向に操作する操作体（４）をもつ固定部材（３）とを備
え、操作ワイヤ（Ｗ）の引き操作により前記制動体
（２）を回転体（１）に圧接して制動を行うように構成
したブレーキであって、 前記固定部材（３）を、自転車のフレームに支持する支
持体（６）を設けて、この支持体（６）に前記固定部材
（３）を、前記回転体（１）の回転方向に一定範囲揺動
可能に支持し、前記制動体（２）の回転体（１）への圧
接時、前記回転体（１）に従動して揺動するごとく成す
と共に、前記操作体（４）を、前記固定部材（３）の前
記従動時における揺動方向の操作で前記制動体（２）が
回転体（１）に圧接するように前記固定部材（３）に取
り付けてある自転車用ブレーキ。1. A rotating body (1) which rotates together with a front wheel hub of a bicycle, and a braking body (2) which is in contact with the rotating body (1).
And a fixing member (3) having an operating body (4) for operating the braking body (2) in a direction in which the braking body (2) is pressed against the rotating body (1), and the braking body is operated by pulling the operating wire (W). A brake configured such that (2) is brought into pressure contact with a rotating body (1) for braking, and a support body (6) for supporting the fixing member (3) on a frame of a bicycle is provided, and the support is provided. The fixing member (3) is supported by the body (6) so as to be swingable in a certain range in the rotation direction of the rotating body (1), and when the braking body (2) is pressed against the rotating body (1), The operating body (4) is rotated by the rotating body (1), and the braking body (2) is rotated by operating the fixing member (3) in the swinging direction when the fixing member (3) is driven. A bicycle brake attached to the fixing member (3) so as to come into pressure contact with (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11530488U JPH0645429Y2 (en) | 1988-08-31 | 1988-08-31 | Bicycle brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11530488U JPH0645429Y2 (en) | 1988-08-31 | 1988-08-31 | Bicycle brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0235897U JPH0235897U (en) | 1990-03-08 |
| JPH0645429Y2 true JPH0645429Y2 (en) | 1994-11-24 |
Family
ID=31356844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11530488U Expired - Lifetime JPH0645429Y2 (en) | 1988-08-31 | 1988-08-31 | Bicycle brake |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0645429Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3638309B2 (en) | 1994-06-23 | 2005-04-13 | 株式会社シマノ | Bicycle hub brake |
-
1988
- 1988-08-31 JP JP11530488U patent/JPH0645429Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0235897U (en) | 1990-03-08 |
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