JPH0386879U - - Google Patents
Info
- Publication number
- JPH0386879U JPH0386879U JP14893589U JP14893589U JPH0386879U JP H0386879 U JPH0386879 U JP H0386879U JP 14893589 U JP14893589 U JP 14893589U JP 14893589 U JP14893589 U JP 14893589U JP H0386879 U JPH0386879 U JP H0386879U
- Authority
- JP
- Japan
- Prior art keywords
- operating member
- cam
- brake
- fixed shaft
- hydraulic pressure
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
Description
第１図は本考案一実施例のブレーキロツク非作
動位置における油圧保持バルブの第２カムを示す
第５図のＡ−Ａ線断面図。第２図は第５図のＢ−
Ｂ線断面図。第３図はブレーキロツク作動位置に
おいて適正な油圧が保持された状態を示す第１図
に対応する断面図。第４図はブレーキロツク作動
位置において適正な油圧が保持された状態を示す
第２図に対応する断面図。第５図は第１図のＣ−
Ｃ線断面図。
１８……操作部材、２３……固定軸、２４……
油圧保持バルブハウジング、３１……第１カム、
３２……第２カム、３７……圧縮ばね、３８……
鋼球、４１……第１凹部、４２……第２凹部、４
７……ストツパ。
FIG. 1 is a sectional view taken along the line A--A in FIG. 5 showing the second cam of the oil pressure holding valve in the brake lock non-operating position according to an embodiment of the present invention. Figure 2 is B- in Figure 5.
B-line sectional view. FIG. 3 is a sectional view corresponding to FIG. 1, showing a state where proper oil pressure is maintained at the brake lock operating position. FIG. 4 is a sectional view corresponding to FIG. 2, showing a state where proper oil pressure is maintained at the brake lock operating position. Figure 5 shows C- in Figure 1.
C-line sectional view. 18... Operating member, 23... Fixed shaft, 24...
Hydraulic holding valve housing, 31...first cam,
32...Second cam, 37...Compression spring, 38...
Steel ball, 41...first recess, 42...second recess, 4
7...Stotsupa.
Claims (1)
と、 この固定軸に回動可能に取付けられブレーキロ
ツク作動位置又はブレーキロツク非作動位置に切
換わる操作部材と、 この操作部材が前記作動位置に切換わるときブ
レーキマスタシリンダで生じた油圧をブレーキ装
置内に所定の圧力で保持させる油圧保持バルブ機
構と、 前記固定軸に前記操作部材と一体的に回動する
ように嵌装され前記バルブ機構を駆動する第１カ
ムと、 前記固定軸に前記操作部材と一体的に回動する
ように嵌装されパーキングブレーキの不作動状態
で前記操作部材の固定軸に対する回動を制止する
制止面を有する環状の第２カムと を備えたブレーキロツク用の油圧保持バルブにお
いて、 前記ハウジングの前記第２カムの外周面に臨む
位置に弾性体によつて前記固定軸の軸心方向に付
勢されて前記第２カムの外周面に圧接される鋼球
が設けられ、 前記操作部材が前記非作動位置又は前記作動位
置に切換わるとき前記第２カムの外周面に前記鋼
球がそれぞれ圧入して係止する第１凹部及び第２
凹部が設けられ、 かつ前記操作部材が前記作動位置に切換わると
き前記第１カム又は前記ハウジングのいずれか一
方又は双方に前記操作部材の回転を制止するスト
ツパが設けられた ことを特徴とするブレーキロツク用の油圧保持バ
ルブ。[Scope of Claim for Utility Model Registration] A fixed shaft fixed to a hydraulic pressure holding valve housing, an operating member rotatably attached to the fixed shaft and switched to a brake lock activated position or a brake lock non-activated position, and this operating member. a hydraulic pressure holding valve mechanism that maintains the hydraulic pressure generated in the brake master cylinder at a predetermined pressure within the brake device when the brake master cylinder is switched to the operating position; and a hydraulic pressure holding valve mechanism fitted to the fixed shaft so as to rotate integrally with the operating member. a first cam that is fitted onto the fixed shaft so as to rotate integrally with the operating member, and that prevents rotation of the operating member relative to the fixed shaft when the parking brake is inactive. In the hydraulic pressure holding valve for brake locking, which is provided with an annular second cam having a stopping surface, the housing is attached in the axial direction of the fixed shaft by an elastic body at a position facing the outer peripheral surface of the second cam. Steel balls are provided that are pressed against the outer circumferential surface of the second cam by force, and the steel balls are press-fitted into the outer circumferential surface of the second cam when the operating member is switched to the non-operating position or the operating position. A first recessed portion and a second recessed portion
A brake characterized in that a recess is provided, and a stopper is provided on either or both of the first cam or the housing to stop rotation of the operating member when the operating member is switched to the operating position. Hydraulic holding valve for locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14893589U JPH0734769Y2 (en) | 1989-12-25 | 1989-12-25 | Hydraulic holding valve for brake lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14893589U JPH0734769Y2 (en) | 1989-12-25 | 1989-12-25 | Hydraulic holding valve for brake lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0386879U true JPH0386879U (en) | 1991-09-03 |
| JPH0734769Y2 JPH0734769Y2 (en) | 1995-08-09 |
Family
ID=31695366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14893589U Expired - Lifetime JPH0734769Y2 (en) | 1989-12-25 | 1989-12-25 | Hydraulic holding valve for brake lock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0734769Y2 (en) |
-
1989
- 1989-12-25 JP JP14893589U patent/JPH0734769Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0734769Y2 (en) | 1995-08-09 |