JPS6118262Y2 - - Google Patents

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Publication number
JPS6118262Y2
JPS6118262Y2 JP1979027097U JP2709779U JPS6118262Y2 JP S6118262 Y2 JPS6118262 Y2 JP S6118262Y2 JP 1979027097 U JP1979027097 U JP 1979027097U JP 2709779 U JP2709779 U JP 2709779U JP S6118262 Y2 JPS6118262 Y2 JP S6118262Y2
Authority
JP
Japan
Prior art keywords
cam
bolt
cam plate
caliper
wheel
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
Application number
JP1979027097U
Other languages
Japanese (ja)
Other versions
JPS55127135U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1979027097U priority Critical patent/JPS6118262Y2/ja
Publication of JPS55127135U publication Critical patent/JPS55127135U/ja
Application granted granted Critical
Publication of JPS6118262Y2 publication Critical patent/JPS6118262Y2/ja
Expired legal-status Critical Current

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Description

【考案の詳細な説明】 本考案は車両用デイスクブレーキ装置、特に小
径車輪を備えたゴルフカート等に用いるのに最適
なブレーキ装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a disc brake device for a vehicle, particularly to a brake device most suitable for use in golf carts and the like equipped with small diameter wheels.

この種ブレーキ装置として、キヤリパ本体内に
回動カム板、摺動カム板、両カム板間に介装した
スラストボールおよび摺動カム板の戻しばねを備
えたカム機構を設け、回動カムに連結された作動
レバーの回動によりスラストボールを介し摺動カ
ム板に推力を発生させて、ブレーキデイスクの両
側面を固定および可動摩擦パツドにより加圧する
ようにしたものが知られている。
This type of brake device is equipped with a cam mechanism that includes a rotating cam plate, a sliding cam plate, a thrust ball interposed between both cam plates, and a return spring for the sliding cam plate in the caliper body. It is known that a thrust force is generated on a sliding cam plate through a thrust ball by the rotation of a connected operating lever, and both sides of a brake disk are pressurized by fixed and movable friction pads.

上記ブレーキ装置においては、カム機構を直接
キヤリパ本体内に組込む構成であるから、組込
み、分解作業に多くの手数を要し、また誤つた組
立てを行う場合もあり、作業性および性能の安定
性の面で問題がある。また小径車輪用のブレーキ
装置としては、装置全体を小型にする構成する必
要があるが、このように小型化した場合でも強力
な制動接作を行うことができるように構成されて
いなければならない。
In the above-mentioned brake device, the cam mechanism is directly assembled into the caliper body, so it takes a lot of work to assemble and disassemble it, and there is also the possibility of incorrect assembly, which reduces workability and performance stability. There is a problem in terms of Furthermore, as a brake device for small-diameter wheels, the entire device must be constructed to be compact, but it must be constructed so that strong braking action can be performed even when the device is miniaturized in this way.

本考案は上記の鑑み、カム機構を1つのケース
内に組込んで1つのユニツトを構成し、これによ
りカム機構のコンパクト化を図り、その組込みお
よび分解作業を容易にすると共に性能の安定性を
向上させ、また装置全体が小型であるにもかゝわ
らず、作動レバーの作動ストロークを十分にとる
ことができ、またタイヤパンク時においても装置
機構部が何等の影響も受けずに正常に制動作用を
営むことができるようにした前記デイスクブレー
キ装置を提供することを目的とする。
In view of the above, the present invention incorporates a cam mechanism into one case to form one unit, thereby making the cam mechanism more compact, facilitating its assembly and disassembly work, and improving stability of performance. In addition, despite the small size of the entire device, the operating lever has a sufficient operating stroke, and even in the event of a tire puncture, the device mechanism is not affected in any way and brakes normally. It is an object of the present invention to provide the above-mentioned disc brake device which is capable of performing an action.

そしてかかる目的を達成するために本考案は、
キヤリパ本体内に、回動カム板、摺動カム板、両
カム板間に介装したスラストボールおよび前記摺
動カム板の戻しばねを備えたカム機構を設け、前
記回動カムに連結された作動レバーの回動により
前記スラストボールを介し前記摺動カム板に推力
を発生させて、ブレーキデイスクの両側面を固定
および可動摩擦パツドにより加圧するようにした
車両用デイスクブレーキ装置において、前記キヤ
リパ本体をホイール内側の上部空間に位置させて
車体フレームに設け、前記カム機構を1つのケー
ス内に組込んで1つのユニツトに構成すると共
に、前記回動カムの背面を該ケースを介して前記
キヤリパ本体の端壁内面に回動自在に当接し、前
記端壁に穿設した貫通孔に、前記回動カムに一体
に連設されて前記ケース外にのびる中空軸部の中
間部を回動自在に嵌合支持すると共に、その中空
軸部の、前記端壁外面より突出させた先端部を前
記ホイールの内側空間の外側に位置させ、前記中
空軸部の先端部には、その先端部より上方へ延出
する前記作動レバーを着脱可能に固着し、前記可
動摩擦パツドに推力を伝達し得る摩擦パツド間隙
調節用ボルトを前記摺動カム板の中心を貫通する
雌ねじ孔に螺合して、該ボルトの一端を前記可動
摩擦パツドに対向させると共に該ボルトの他端を
前記中空軸部内に遊挿し、前記ボルトの他端に調
節つまみを、該ボルトの軸方向移動を許容し且つ
該調節つまみと一体に回転し得るように連結した
ことを特徴とする。
In order to achieve this purpose, the present invention
A cam mechanism including a rotating cam plate, a sliding cam plate, a thrust ball interposed between both cam plates, and a return spring for the sliding cam plate is provided in the caliper body, and the cam mechanism is connected to the rotating cam. In the disc brake device for a vehicle, a thrust force is generated on the sliding cam plate through the thrust ball by rotation of the operating lever, and both sides of the brake disc are pressurized by fixed and movable friction pads, wherein the caliper body is located in the upper space inside the wheel and is provided on the vehicle body frame, and the cam mechanism is incorporated into one case to form one unit, and the back surface of the rotary cam is connected to the caliper main body through the case. rotatably abuts on the inner surface of the end wall of the housing, and is integrally connected to the rotary cam and extends outside the case through a through hole formed in the end wall, so that the intermediate portion of the hollow shaft portion rotatably abuts on the inner surface of the end wall of the housing. At the same time as fitting and supporting, the tip of the hollow shaft protruding from the outer surface of the end wall is located outside the inner space of the wheel, and the tip of the hollow shaft has a tip extending upward from the tip. A friction pad gap adjustment bolt, which removably fixes the extending operating lever and is capable of transmitting thrust to the movable friction pad, is screwed into a female threaded hole passing through the center of the sliding cam plate. one end of the bolt faces the movable friction pad, the other end of the bolt is loosely inserted into the hollow shaft, and an adjustment knob is provided on the other end of the bolt, allowing the bolt to move in the axial direction and being integral with the adjustment knob. It is characterized by being connected so that it can rotate.

以下、図面により本考案の一実施例について説
明する。
An embodiment of the present invention will be described below with reference to the drawings.

第1図において1は車輪で、そのホイール2は
車軸3のブラケツト4にボルト5によつて固定さ
れている。上記ブラケツト4の突出部端面にブレ
ーキデイスク6がボルト7によつて固定されてい
る。
In FIG. 1, reference numeral 1 denotes a wheel, and the wheel 2 is fixed to a bracket 4 of an axle 3 with a bolt 5. A brake disc 6 is fixed to the end surface of the protruding portion of the bracket 4 with bolts 7.

上記ホイール2の内側空間S1の上部にキヤリ
パ本体8が位置し、その本体8は、車体フレーム
9aに固定したブラケツト9に2本のボルト10
によつて支持されている。第5図に示すようにキ
ヤリパ本体8の支持部とボルト10との間にスリ
ーブ11が介在し、キヤリパ本体8はスリーブ1
1に対し摺動可能である。12,13は両者の摺
動面を塵埃、泥水等より保護する可撓性ブーツで
ある。
A caliper body 8 is located above the inner space S1 of the wheel 2, and the caliper body 8 is attached to a bracket 9 fixed to the vehicle body frame 9a with two bolts 10.
Supported by. As shown in FIG. 5, a sleeve 11 is interposed between the support portion of the caliper main body 8 and the bolt 10, and the caliper main body 8
It is possible to slide against 1. 12 and 13 are flexible boots that protect the sliding surfaces of both from dust, muddy water, etc.

上記キヤリパ本体8は第1,4図に示すように
キヤリパ基部14とカバー部15の二つ割に構成
されており、両者14,15によつて形成される
空間S内にブレーキデイスク6の一部が位置す
る。そのブレーキデイスク6の左右両側に固定摩
擦パツド16と可動摩擦パツド17が位置し、そ
れらの基板18,19がカバー部15の外部から
キヤリパ基部14にねじ込んだボルト20に吊下
げ支持されている。上記ボルト20は図示例では
2本設けられ、上記のように各パツドを支持する
と共にカバー部15を基部14に締付け固定する
ために使用されている。他の2本のボルト21,
21はカバー部15を基部14に固定するために
のみ使用されている。
As shown in FIGS. 1 and 4, the caliper main body 8 is divided into two parts: a caliper base 14 and a cover part 15, and a brake disc 6 is placed in a space S formed by both parts 14 and 15. Department is located. A fixed friction pad 16 and a movable friction pad 17 are located on both the left and right sides of the brake disc 6, and their substrates 18 and 19 are suspended and supported by bolts 20 screwed into the caliper base 14 from the outside of the cover part 15. In the illustrated example, two bolts 20 are provided, and are used to support each pad as described above and to tighten and fix the cover portion 15 to the base portion 14. the other two bolts 21,
21 is used only for fixing the cover part 15 to the base part 14.

上記キヤリパ基部14内に可動摩擦パツド17
の基板19に当接するカツプ形のピストン22が
摺動可能に嵌合され、その口縁内周面にキヤリパ
基部内に小ねじ23によつて固定されたガイド筒
24の一部が嵌合されている。
A movable friction pad 17 is located inside the caliper base 14.
A cup-shaped piston 22 that comes into contact with the base plate 19 is slidably fitted, and a part of a guide cylinder 24 fixed in the caliper base with a machine screw 23 is fitted onto the inner circumferential surface of the mouth edge of the cup-shaped piston 22. ing.

上記ピストン22およびガイド筒24内にユニ
ツト化されたカム機構25が設けられている。そ
のカム機構25は収納ケース26と、そのケース
内に設けられた回動カム板28と、そのカム板2
8と対面する摺動カム板29と、その両板28,
29の各対向面に円周上等間隔に形成した皿状凹
部30,31(図では各1個のみ示す)間に挾持
されたスラストボール32と、上記回動カム板2
8の背面と環状のケース底板33との間に介在さ
せたスラストベアリング34と、上記摺動カム板
29の前面とケース26の折曲げ縁内面との間に
介在させた戻しばねとしてのコイルスプリング3
5とを有する。
A unitized cam mechanism 25 is provided within the piston 22 and guide cylinder 24. The cam mechanism 25 includes a storage case 26, a rotating cam plate 28 provided in the case, and the cam plate 2.
A sliding cam plate 29 facing 8, both plates 28,
A thrust ball 32 is held between dish-shaped recesses 30 and 31 (only one of each is shown in the figure) formed at equal intervals on the circumference on each opposing surface of the rotating cam plate 2.
a thrust bearing 34 interposed between the back surface of the case 8 and the annular case bottom plate 33; and a coil spring serving as a return spring interposed between the front surface of the sliding cam plate 29 and the inner surface of the bent edge of the case 26. 3
5.

上記摺動カム板29はその周縁の一部にケース
26の側面の切欠き部26bから突出する回止め
37を有し、上記ユニツトのケース26をガイド
筒24に嵌めたとき回止め37をガイド筒内面に
形成した凹部38に係合させて摺動カム板29の
回転を制止するようになつている。上記回動カム
板28の背面は上記スラストベアリング34、ケ
ース底板33を介して、キヤリパ基部14の端壁
8a内面に回動自在に当接支承されており、また
その回動カム板28の背面中央部にはケース26
外にのびる長い中空軸部27が一体に突設され、
その中空軸部27は、前記端壁8aに穿設した貫
通孔39の内周面に回動可能に支承され、先端部
40は基部14からホイール2内側の空間S1外
に突出する。その先端部40にはブレーキ作動レ
バー41の基部を角嵌合(またはスプライン嵌
合)して、ワツシヤ43、ナツト回止め42を介
してナツト44をねじ込み、これにより作動レバ
ー41の抜止めがなされる。
The sliding cam plate 29 has a detent 37 on a part of its periphery that protrudes from the notch 26b on the side surface of the case 26, and guides the detent 37 when the case 26 of the unit is fitted into the guide cylinder 24. The rotation of the sliding cam plate 29 is stopped by engaging with a recess 38 formed on the inner surface of the cylinder. The back surface of the rotating cam plate 28 is rotatably supported in contact with the inner surface of the end wall 8a of the caliper base 14 via the thrust bearing 34 and the case bottom plate 33, and the back surface of the rotating cam plate 28 is Case 26 in the center
A long hollow shaft portion 27 extending outward is integrally provided,
The hollow shaft portion 27 is rotatably supported on the inner peripheral surface of a through hole 39 formed in the end wall 8a, and the tip portion 40 projects from the base portion 14 to the outside of the space S1 inside the wheel 2. The base of the brake operating lever 41 is square-fitted (or spline-fitted) into the tip 40, and a nut 44 is screwed in through the washer 43 and nut rotation stopper 42, thereby preventing the operating lever 41 from coming off. Ru.

上記作動レバー41は軸部27からホイール2
の半径方向上方へ長く延出し、その先端はホイー
ル2の外周位置に達している。
The operating lever 41 is connected from the shaft portion 27 to the wheel 2.
extends upward in the radial direction, and its tip reaches the outer circumferential position of the wheel 2.

摩擦パツドの摩耗に伴い、その作動間隙を調節
する、摩擦パツド間隙調節用ボルト36が摺動カ
ム板29の中心を貫通する雌ねじ29aに螺合さ
れ、そのボルト36の一端はケース26の開口2
6aから突出してピストン22の底部内面に当接
し、他端は軸部27内に遊挿されている。これに
よりボルト36はピストン22、基板19を介し
て可動摩擦パツド17と対向し、摺動カム板29
の推力を可動摩擦パツド17に伝達することがで
きる。
A friction pad gap adjustment bolt 36 that adjusts the operating gap as the friction pads wear out is screwed into a female thread 29a passing through the center of the sliding cam plate 29, and one end of the bolt 36 is inserted into the opening 2 of the case 26.
It protrudes from 6a and comes into contact with the bottom inner surface of the piston 22, and the other end is loosely inserted into the shaft portion 27. As a result, the bolt 36 faces the movable friction pad 17 via the piston 22 and the base plate 19, and the sliding cam plate 29
can be transmitted to the movable friction pad 17.

上記回動カム板28の軸部27内には、その先
端部から作動間隙調節用の調節つまみ46の軸部
47が挿入され、その角軸部48を上記ボルト3
6のすり割49に係合させてある。これによりボ
ルト36は調節つまみ46と無関係に軸方向に移
動することができ、一方調節つまみ46を回転さ
せることによりボルト36を前進させて間隙調節
を行うことができる。その調節つまみ46の頂面
とキヤリパキヤツプ50との間に抜止め用のコイ
ルスプリング51が介在する。
A shaft 47 of an adjustment knob 46 for adjusting the operating gap is inserted from its tip into the shaft 27 of the rotary cam plate 28, and the square shaft 48 is inserted into the shaft 27 of the bolt 3.
It is engaged with the slot 49 of No. 6. This allows the bolt 36 to move axially independently of the adjustment knob 46, while rotating the adjustment knob 46 advances the bolt 36 to adjust the gap. A coil spring 51 is interposed between the top surface of the adjustment knob 46 and the caliper cap 50 to prevent it from coming off.

上記キヤリパキヤツプ50は、例えばプラスチ
ツクより成形され、その口縁内面に等間隔に形成
された複数個の突起部50aをキヤリパ基部14
の外周面に形成した凹部52および貫通孔53に
嵌合させてキヤリパ基部14に位置決め固定され
ている。またキヤリパキヤツプ50は作動レバー
41の回動を許容する窓54を有し、その窓54
およびキヤリパキヤツプ外表面にゴム製のシール
用カバー本体55を弾性的に被着させてその口縁
内周の凹部55aをキヤツプ50の凸縁50bに
嵌合させる。また作動レバー41の突出部周面を
カバー本体55と一体のシール用ブーツ55bを
覆いその口縁を作動レバー周面に密着させて、キ
ヤツプ内を外部に対して密封している。
The caliper cap 50 is made of plastic, for example, and has a plurality of protrusions 50a formed at equal intervals on the inner surface of the mouth edge of the caliper base 14.
It is positioned and fixed to the caliper base 14 by fitting into a recess 52 and a through hole 53 formed on the outer peripheral surface of the caliper. The caliper cap 50 also has a window 54 that allows the operating lever 41 to rotate.
A rubber seal cover main body 55 is elastically attached to the outer surface of the caliper cap, and a recess 55a on the inner periphery of the opening is fitted into a convex edge 50b of the cap 50. Further, a sealing boot 55b integral with the cover body 55 covers the circumferential surface of the protrusion of the operating lever 41, and its lip is brought into close contact with the circumferential surface of the operating lever, thereby sealing the inside of the cap from the outside.

上記作動レバー41の先端にブレーキ操作ワイ
ヤ56が取付けられ、そのシース部材57と作動
レバー41との間に戻しコイルスプリング58が
介在する。そのシース部材57はキヤリパ基部1
4の突出部59に固定されている。60はコイル
スプリング58の保護用ブーツ、61はブラケツ
ト9を車体フレーム9aに取付けるためのボルト
挿通孔である。
A brake operating wire 56 is attached to the tip of the operating lever 41, and a return coil spring 58 is interposed between the sheath member 57 and the operating lever 41. The sheath member 57 is attached to the caliper base 1
It is fixed to the protrusion 59 of No. 4. 60 is a protective boot for the coil spring 58, and 61 is a bolt insertion hole for attaching the bracket 9 to the vehicle body frame 9a.

次に上記ブレーキ装置の作用を説明すると、操
作ワイヤ56をコイルスプリング58に抗して索
引し、作動レバー41を介して回動カム板28を
回動させると、相対向する皿状凹部30,31の
位相がずれて、スラストボール32はその等凹部
の斜面を登りながら戻しコイルスプリング35に
抗して摺動カム板29を第1図左方へ摺動させ
る。その摺動はボルト36を介してピストン22
に伝達されるので可動摩擦パツド17がブレーキ
デイスク6の右側面に圧接する。そしてその圧接
に伴う反力によりキヤリパ本体8がスリーブ11
にそつて第1,5図右方へ摺動し、固定摩擦パツ
ド16をブレーキデイスク6の左側面に圧接し、
かくして両摩擦パツド16,17は均等な圧力を
もつてブレーキデイスク6を挾圧し、その回転を
制止する。
Next, to explain the action of the above-mentioned brake device, when the operating wire 56 is indexed against the coil spring 58 and the rotating cam plate 28 is rotated via the operating lever 41, the opposing dish-shaped recesses 30, 31 is out of phase, the thrust ball 32 climbs the slope of the concave portion and slides the sliding cam plate 29 to the left in FIG. 1 against the return coil spring 35. The sliding movement is caused by the piston 22 via the bolt 36.
The movable friction pad 17 comes into pressure contact with the right side surface of the brake disc 6. The caliper main body 8 is then moved against the sleeve 11 by the reaction force accompanying the pressure welding.
1 and 5 to the right to press the fixed friction pad 16 against the left side surface of the brake disc 6,
Thus, both friction pads 16, 17 clamp the brake disc 6 with equal pressure and stop its rotation.

以上のように本考案によれば、キヤリパ本体8
をホイール2内側の上部空間に位置させて車体フ
レーム9aに設け、カム機構25を1つのケース
26内に組込んで1つのユニツトに構成し、回動
カム板28に突設されてケース26外に突出する
中空の軸部27を、キヤリパ本体8に回転可能に
支承させてその軸部27先端をホイール2内側の
空間外に突出させ、軸部27先端近傍に、作動レ
バー41をホイール2の半径方向上方へ突出させ
て固定し、可動摩擦パツド17に推力を伝達し得
る摩擦パツド間隙調節用ボルト36を摺動カム板
29の中心を貫通する雌ねじ孔29aに螺合し
て、そのボルト36の一端を可動摩擦パツド17
に対向させると共にボルト36の他端を軸部27
内に遊挿し、ボルト36の他端に調節つまみ46
を、ボルト36の軸方向移動を許容し、且つ調節
つまみ46と一体に回転し得るように連結したの
で、カム機構25がコンパクトに構成され、ブレ
ーキ装置の小型化を図る上に有益であり、またカ
ム機構25のキヤリパ本体8に対する組込み作業
およびカム機構25の分解作業を極めて容易に行
うことができる。さらにカム機構ユニツトをキヤ
リパ本体8内に組込む前にそのユニツトの作動テ
ストを行うことが可能であるから、もし組立てに
誤りがある場合にはそのテスト時に発見すること
ができ、製品の性能の安定性を向上させることが
できる。さらにまた、作動レバー41を長く形成
するも、その回動をホイール2が妨げることがな
く、したがつて作動レバー41の作動ストローク
を十分に採つて強力な制動操作を行うことができ
る。しかもキヤリパ本体8等の装置主要部はホイ
ール2に覆われて、車両の走行中他物との接触に
よる損傷から保護される。また、作動レバー41
はホイールの半径方向上方へ延出するので、タイ
ヤのパンク時でも作動レバー41が地面に食込ん
で作動不能となる危険もなく、常に確実な制動を
行うことができる。
As described above, according to the present invention, the caliper body 8
is located in the upper space inside the wheel 2 and is provided on the vehicle body frame 9a, and the cam mechanism 25 is assembled into one case 26 to form one unit, and the cam mechanism 25 is protruded from the rotary cam plate 28 and installed outside the case 26. A hollow shaft portion 27 protruding from the outside is rotatably supported by the caliper body 8 so that the tip of the shaft portion 27 projects outside the space inside the wheel 2. A friction pad gap adjustment bolt 36 that is fixed and protrudes upward in the radial direction and is capable of transmitting thrust to the movable friction pad 17 is screwed into a female threaded hole 29a passing through the center of the sliding cam plate 29. One end of the movable friction pad 17
and the other end of the bolt 36 is connected to the shaft portion 27.
the adjusting knob 46 on the other end of the bolt 36.
are connected to allow the axial movement of the bolt 36 and to rotate together with the adjustment knob 46, so the cam mechanism 25 can be configured compactly, which is useful for downsizing the brake device. Further, the work of assembling the cam mechanism 25 into the caliper body 8 and the work of disassembling the cam mechanism 25 can be performed extremely easily. Furthermore, since it is possible to test the operation of the cam mechanism unit before assembling it into the caliper body 8, if there is an error in assembly, it can be discovered during the test, and the performance of the product can be stabilized. can improve sex. Furthermore, even though the actuation lever 41 is made long, its rotation is not obstructed by the wheel 2, so that a sufficient actuation stroke of the actuation lever 41 can be taken to perform a strong braking operation. Moreover, the main parts of the device, such as the caliper main body 8, are covered by the wheels 2 and are protected from damage caused by contact with other objects while the vehicle is running. In addition, the operating lever 41
Since the lever 41 extends upward in the radial direction of the wheel, there is no danger that the operating lever 41 will dig into the ground and become inoperable even when the tire is punctured, and reliable braking can always be performed.

また摩擦パツド間隙調節用ボルト36の略全長
をカム機構25の摺動カム板29および回動カム
板28の内部に配設し得るので、装置全体の、ホ
イール側方への突出長さを抑制することができ
る。さらに、調節つまみ46をホイール2側方よ
り操作し得るので、間隙調節作業を容易に行うこ
とができ、その上調節つまみ46には制動荷重が
全く作用しないので、そのつまみ46を軽量で安
価な材料により形成することができる。
Furthermore, since almost the entire length of the friction pad gap adjustment bolt 36 can be disposed inside the sliding cam plate 29 and the rotating cam plate 28 of the cam mechanism 25, the protrusion length of the entire device to the side of the wheel can be suppressed. can do. Furthermore, since the adjustment knob 46 can be operated from the side of the wheel 2, the gap adjustment work can be easily performed.Furthermore, since no braking load acts on the adjustment knob 46, the knob 46 can be used in a lightweight and inexpensive manner. It can be formed by any material.

また特に前記回動カム板28の背面をカム機構
25のケース26を介して前記キヤリパ本体8の
端壁8a内面に回動自在に当接し、前記端壁8a
に穿設した貫通孔39に前記中空軸部27を回動
可能に嵌合支持したので、ユニツト化したカム機
構25のケース26をキヤリパ本体8の端壁8a
に単に当てるだけで、そのケース26内の回動カ
ム板28を同端壁8aに強固に支持することがで
きるから、カム機構25の推力発生時に回動カム
板28に加わる強力なスラスト荷重を簡単な支持
構造によつて確実に受け止めることができる。ま
たケース26外にのびる回動カム板28の中空軸
部27を前記端壁8aの貫通孔39に単に嵌挿さ
せるだけで、回動カム板28及び作動レバー41
に対する安定した軸受構造が得られるから、カム
機構25のユニツト化に伴いケース26内の回動
カム板28とキヤリパ本体8外の作動レバー41
とがその回動軸線方向に互いに離隔配置されるに
も拘らず、その両者28,41間を一体に連結す
る中空軸部27に倒れや捩りを生じることなく作
動レバー41の回動トルクを回動カム板28に常
にスムーズに伝達でき、カム機構25は常に効率
よく推力を発生し得るものである。
In particular, the back surface of the rotary cam plate 28 is rotatably abutted against the inner surface of the end wall 8a of the caliper main body 8 via the case 26 of the cam mechanism 25, and
Since the hollow shaft portion 27 is rotatably fitted and supported in the through hole 39 bored in the caliper body 8, the case 26 of the unitized cam mechanism 25 is attached to the end wall 8a of the caliper body 8.
The rotary cam plate 28 in the case 26 can be firmly supported by the same end wall 8a by simply applying the force to the rotary cam plate 28, so that the strong thrust load applied to the rotary cam plate 28 when the thrust of the cam mechanism 25 is generated can be suppressed. It can be reliably received by a simple support structure. Further, by simply fitting the hollow shaft portion 27 of the rotary cam plate 28 extending outside the case 26 into the through hole 39 of the end wall 8a, the rotary cam plate 28 and the operating lever 41
Because a stable bearing structure is obtained for
Even though they are spaced apart from each other in the direction of their rotational axes, the rotational torque of the actuating lever 41 can be rotated without tilting or twisting the hollow shaft portion 27 that integrally connects both 28 and 41. The thrust can always be smoothly transmitted to the moving cam plate 28, and the cam mechanism 25 can always generate thrust efficiently.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案の一実施例の縦断正面図、第2
図は第1図矢示A方向からみた部分側面図、第3
図は第1図矢示B方向からみた部分側面図、第4
図はキヤリパ本体の部分横断平面図、第5図は第
2図−線断面図である。 1……車輪、2……ホイール、6……ブレーキ
デイスク、8……キヤリパ本体、9a……車体フ
レーム、16……固定摩擦パツド、17……可動
摩擦パツド、25……カム機構、26……ケー
ス、27……軸部、28……回動カム板、29…
…摺動カム板、29a……雌ねじ孔、32……ス
ラストボール、35……戻しコイルスプリング、
36……摩擦パツド間隙調節用ボルト、41……
作動レバー、46……つまみ。
Fig. 1 is a longitudinal sectional front view of one embodiment of the present invention;
The figure is a partial side view seen from the direction of arrow A in Figure 1, and Figure 3.
The figure is a partial side view seen from the direction of arrow B in Figure 1, and Figure 4.
The figure is a partial cross-sectional plan view of the caliper main body, and FIG. 5 is a cross-sectional view taken along the line of FIG. 2. DESCRIPTION OF SYMBOLS 1...Wheel, 2...Wheel, 6...Brake disc, 8...Caliper body, 9a...Vehicle frame, 16...Fixed friction pad, 17...Movable friction pad, 25...Cam mechanism, 26... ...Case, 27...Shaft, 28...Rotating cam plate, 29...
...Sliding cam plate, 29a...Female screw hole, 32...Thrust ball, 35...Return coil spring,
36...Friction pad gap adjustment bolt, 41...
Operating lever, 46...knob.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] キヤリパ本体8内に、回動カム28、摺動カム
板29、両カム板28,29間に介装したスラス
トボール32および前記摺動カム板29の戻しば
ね35を備えたカム機構25を設け、前記回動カ
ム28に連結された作動レバー41の回動により
前記スラストボール32を介し前記摺動カム板2
9に推力を発生させて、ブレーキデイスク6の両
側面を固定および可動摩擦パツド16,17によ
り加圧するようにした車両用デイスクブレーキ装
置において、前記キヤリパ本体8をホイール2内
側の上部空間に位置させて車体フレーム9aに設
け、前記カム機構25を1つのケース26内に組
込んで1つのユニツトに構成すると共に、前記回
動カム28の背面を該ケース26を介して前記キ
ヤリパ本体8の端壁8a内面に回動自在に当接
し、前記端壁8aに穿設した貫通孔39に、前記
回動カム28に一体に連設させて前記ケース28
外にのびる中空軸部27の中間部を回動自在に嵌
合支持すると共に、その中空軸部27の、前記端
壁8a外面より突出させた先端部40を前記ホイ
ール2の内側空間SIの外側に位置させ、前記中空
軸部27の先端部40には、その先端部40より
上方へ延出する前記作動レバー41を着脱可能に
固着し、前記可動摩擦パツド17に推力を伝達し
得る摩擦パツド間隙調節用ボルト36を前記摺動
カム板29の中心を貫通する雌ねじ孔29aに螺
合して、該ボルト36の一端を前記可動摩擦パツ
ド17に対向させると共に該ボルト36の他端を
前記中空軸部27内に遊挿し、前記ボルト36の
他端に調節つまみ46を、該ボルト36の軸方向
移動を許容し且つ該調節つまみ46と一体に回転
し得るように連結したことを特徴とする、車両用
デイスクブレーキ装置。
A cam mechanism 25 is provided in the caliper body 8, which includes a rotating cam 28, a sliding cam plate 29, a thrust ball 32 interposed between both cam plates 28 and 29, and a return spring 35 for the sliding cam plate 29. , the sliding cam plate 2 is rotated via the thrust ball 32 by the rotation of the operating lever 41 connected to the rotating cam 28.
In the disc brake device for a vehicle, the caliper main body 8 is located in the upper space inside the wheel 2, and the caliper body 8 is positioned in the upper space inside the wheel 2. The cam mechanism 25 is installed in the vehicle body frame 9a, and the cam mechanism 25 is incorporated into one case 26 to form one unit, and the back surface of the rotary cam 28 is connected to the end wall of the caliper main body 8 through the case 26. The case 28 is rotatably abutted on the inner surface of the rotary cam 8a and is integrally connected to the rotary cam 28 in a through hole 39 bored in the end wall 8a.
The middle part of the hollow shaft part 27 extending outward is rotatably fitted and supported, and the tip part 40 of the hollow shaft part 27 protruding from the outer surface of the end wall 8a is placed outside the inner space SI of the wheel 2. The operating lever 41 extending upward from the distal end 40 is removably fixed to the distal end 40 of the hollow shaft portion 27, and a friction pad capable of transmitting thrust to the movable friction pad 17 is provided. A gap adjustment bolt 36 is screwed into the female threaded hole 29a passing through the center of the sliding cam plate 29, so that one end of the bolt 36 faces the movable friction pad 17, and the other end of the bolt 36 is placed in the hollow space. It is characterized by being loosely inserted into the shaft portion 27 and connected to the other end of the bolt 36 with an adjustment knob 46 so as to allow the bolt 36 to move in the axial direction and to rotate together with the adjustment knob 46. , disc brake device for vehicles.
JP1979027097U 1979-03-02 1979-03-02 Expired JPS6118262Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1979027097U JPS6118262Y2 (en) 1979-03-02 1979-03-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1979027097U JPS6118262Y2 (en) 1979-03-02 1979-03-02

Publications (2)

Publication Number Publication Date
JPS55127135U JPS55127135U (en) 1980-09-08
JPS6118262Y2 true JPS6118262Y2 (en) 1986-06-03

Family

ID=28870576

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1979027097U Expired JPS6118262Y2 (en) 1979-03-02 1979-03-02

Country Status (1)

Country Link
JP (1) JPS6118262Y2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193136U (en) * 1982-06-18 1983-12-22 トキコ株式会社 disc brake
JPS6132838U (en) * 1984-07-31 1986-02-27 日信工業株式会社 disc brake device
JPS6252230A (en) * 1985-08-30 1987-03-06 Toyoda Autom Loom Works Ltd Brake device
FR2800825B1 (en) * 1999-11-08 2002-01-11 Bosch Gmbh Robert BALL RAMP AND BRAKE CYLINDER COMPRISING SUCH A RAMP

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5014281U (en) * 1973-05-31 1975-02-14
JPS5239069A (en) * 1975-09-20 1977-03-26 Tokico Ltd Abrasin adjusting device used for pad in mechanical type disc brake

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5014281U (en) * 1973-05-31 1975-02-14
JPS5239069A (en) * 1975-09-20 1977-03-26 Tokico Ltd Abrasin adjusting device used for pad in mechanical type disc brake

Also Published As

Publication number Publication date
JPS55127135U (en) 1980-09-08

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