JPS60108838U - Wheel cylinder equipped with automatic clearance adjustment mechanism - Google Patents
Wheel cylinder equipped with automatic clearance adjustment mechanismInfo
- Publication number
- JPS60108838U JPS60108838U JP19945483U JP19945483U JPS60108838U JP S60108838 U JPS60108838 U JP S60108838U JP 19945483 U JP19945483 U JP 19945483U JP 19945483 U JP19945483 U JP 19945483U JP S60108838 U JPS60108838 U JP S60108838U
- Authority
- JP
- Japan
- Prior art keywords
- flange
- groove
- piston
- tooth profile
- guide
- 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.)
- Granted
Links
Landscapes
- Braking Arrangements (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はこの考案に係るスキマ自動調整機構を設けたホ
イールシリンダーの断面図、第２図はスキマ自動調整機
構主要部の拡大断面図である。FIG. 1 is a sectional view of a wheel cylinder equipped with an automatic gap adjustment mechanism according to the present invention, and FIG. 2 is an enlarged sectional view of the main parts of the automatic gap adjustment mechanism.
Claims (1)
入孔１２を貫通して設は両端縁近郊の外周面にブーツ溝
１４を設けて形成したシリンダニ本体１払中実棒状に形
成しシＩＪ ？グ一本体１の内周面と滑嵌状に摺動する
外周面の内端縁近郊にカップ溝１５を設けてピストンカ
ップ１１を挿嵌し同時に外端縁近郊にブーツ溝１６を設
けて形成すると共に内端面中心部に開白し全長の１／２
以上の有効長さを設けて形成した螺子孔１７を設けたピ
ストン２と、螺子孔１７と滑台状に螺子嵌合する雄ねじ
部１８を設けて螺子嵌合させて挿嵌し該雄ねじ部１８と
連接して円形状の鍔部１９と該鍔部１９の中心部に連接
して円形断面を有する嵌合部２０を突出して形成した調
整ねじ４と、鍔部１９と同一外径寸法を形成し、中厚リ
ング状に形成した一方のリング面にラチェツト歯形２１
を設は内周面を調整ボルト４の嵌合部２９に圧入固定し
ラチェツト歯形２１の形成面と対向する面を鍔部１９に
当接させて設けたクラッチ５と、該クラッチ５と同一外
径寸法を有するボス部２２を設けたボス付リング状に形
成し、ボス部２２の端面にラチェツト歯形２１と噛合う
ラチェツト歯形２３を設けて噛合せると共にボス部２２
の外径より大きい谷の径を有するヘリカル歯車２４゛を
外周面に設はラチェット２３の形成面と対向する端面に
円形状の座面２５を形成し内周面を前記嵌合部２０、遊
嵌状に挿嵌した案内子７と、鍔付有底筒状に形成し、筒
部２６の外面を前記調整ボルト４の嵌合部２゛０端面に
螺材固定し鍔部２７の背面と案内子７の底面２５間にコ
イル状のスプリング９を挟接 −して案内子７を保持
するスプリング受８と、ピストン２と同一長さの中実棒
状に形成しシリンダ一本体１の申周面と滑嵌状に摺動す
る外周面の内端縁近郊にカップ溝２８を設けてピストン
カップ１ 。 ０を挿嵌し同時に外端縁近郊にブーツ溝２９を設けて形
成すると共に内端面中心に開口する段付円形有底溝３０
を設けて形成し大形溝部３１の周壁に厚肉筒状に形成し
内周面に前記案内子７のヘリカル歯車２４と噛合う内歯
ヘリカル歯車３２を設けた固定案内子６を開口面を同一
面上に形成するよう＆千圧入固定し、小径溝部３３の内
形寸法を前記スプリング受８の鍔部２７が遊嵌状に挿入
し得 ゛る径に形成したピストン３とからなり、ピス
トン２の螺子孔１７の開口する内端面とピストン３の段
付円形有底溝３０の開口する内端面を対向させてピスト
ン２，３をシリンダ一本体１に挿嵌し、段付円形有底溝
３０の小径溝部３３の底面にスプリング受８の鍔部２７
の開口面が当接した状態でピストン２，３の内端面間に
防接間隔を設けるように形成したことを特徴とするスキ
マ自動調整機構を設けたホイールシリンダー。[Scope of Claim for Utility Model Registration] A cylindrical cylinder having a smooth inner circumferential surface, an introduction hole 12 passing through the center between the ends, and boot grooves 14 on the outer circumferential surface near both ends. Is the main body formed into a solid rod shape? A cup groove 15 is provided near the inner edge of the outer circumferential surface that slides smoothly on the inner circumferential surface of the main body 1, into which the piston cup 11 is inserted, and at the same time a boot groove 16 is provided near the outer edge. At the same time, it opens in the center of the inner end surface and becomes 1/2 of the total length.
A piston 2 is provided with a screw hole 17 formed with the above effective length, and a male threaded portion 18 is provided that screws into the screw hole 17 in a slide-like manner, and is inserted into the male threaded portion 18. A circular flange 19 is connected to the flange 19, and an adjustment screw 4 is connected to the center of the flange 19 and has a protruding fitting part 20 having a circular cross section, and has the same outer diameter as the flange 19. A ratchet tooth profile 21 is formed on one ring surface formed into a medium-thick ring shape.
is provided with a clutch 5 whose inner peripheral surface is press-fitted into the fitting part 29 of the adjustment bolt 4 and whose surface opposite to the surface where the ratchet tooth profile 21 is formed is brought into contact with the flange part 19. It is formed into a ring shape with a boss provided with a boss portion 22 having a diameter dimension, and a ratchet tooth profile 23 that meshes with the ratchet tooth profile 21 is provided on the end face of the boss portion 22 to mesh with the ratchet tooth profile 21.
The helical gear 24' having a root diameter larger than the outer diameter of the ratchet 23 is provided on its outer peripheral surface with a circular seat surface 25 formed on its end surface opposite to the forming surface of the ratchet 23, and its inner peripheral surface is connected to the fitting portion 20 and the idler surface. The guide element 7 is fitted into a cylindrical shape with a flange and a bottom. A coiled spring 9 is sandwiched between the bottom surface 25 of the guide 7 and a spring holder 8 holds the guide 7; The piston cup 1 is provided with a cup groove 28 near the inner edge of the outer circumferential surface that slides smoothly onto the piston cup. 0 is inserted into the boot groove 29 near the outer end edge, and a stepped circular bottomed groove 30 is opened at the center of the inner end surface.
The fixed guide 6 is formed in a thick-walled cylindrical shape on the peripheral wall of the large groove 31, and has an internal helical gear 32 that meshes with the helical gear 24 of the guide 7 on the inner peripheral surface. The piston 3 is formed on the same surface and is press-fitted into the piston 3, and the small diameter groove 33 has a diameter such that the flange 27 of the spring receiver 8 can be loosely inserted into the piston 3. The pistons 2 and 3 are inserted into the cylinder body 1 with the inner end surface where the screw hole 17 of No. 2 opens and the inner end surface where the stepped circular bottomed groove 30 of the piston 3 opens, facing each other, and the pistons 2 and 3 are inserted into the cylinder body 1. The flange portion 27 of the spring receiver 8 is attached to the bottom surface of the small diameter groove portion 33 of 30.
1. A wheel cylinder equipped with an automatic clearance adjustment mechanism, characterized in that the inner end surfaces of the pistons 2 and 3 are formed so as to provide a shielding interval between them when the opening surfaces of the pistons are in contact with each other.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19945483U JPS60108838U (en) | 1983-12-28 | 1983-12-28 | Wheel cylinder equipped with automatic clearance adjustment mechanism |
| US06/664,814 US4603762A (en) | 1983-12-28 | 1984-10-25 | Wheel cylinder having an automatic clearance adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19945483U JPS60108838U (en) | 1983-12-28 | 1983-12-28 | Wheel cylinder equipped with automatic clearance adjustment mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60108838U true JPS60108838U (en) | 1985-07-24 |
| JPS645139Y2 JPS645139Y2 (en) | 1989-02-09 |
Family
ID=30759391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19945483U Granted JPS60108838U (en) | 1983-12-28 | 1983-12-28 | Wheel cylinder equipped with automatic clearance adjustment mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60108838U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200457610Y1 (en) | 2010-04-06 | 2011-12-28 | 주식회사 한국에어브레이크 | Clearance adjusting device in drum brake |
-
1983
- 1983-12-28 JP JP19945483U patent/JPS60108838U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200457610Y1 (en) | 2010-04-06 | 2011-12-28 | 주식회사 한국에어브레이크 | Clearance adjusting device in drum brake |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS645139Y2 (en) | 1989-02-09 |
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