JPH01161866U - - Google Patents
Info
- Publication number
- JPH01161866U JPH01161866U JP5680388U JP5680388U JPH01161866U JP H01161866 U JPH01161866 U JP H01161866U JP 5680388 U JP5680388 U JP 5680388U JP 5680388 U JP5680388 U JP 5680388U JP H01161866 U JPH01161866 U JP H01161866U
- Authority
- JP
- Japan
- Prior art keywords
- side chamber
- atmosphere
- pressure
- atmosphere side
- brake device
- 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
- 238000005192 partition Methods 0.000 claims 3
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000000428 dust Substances 0.000 description 1
Landscapes
- Braking Systems And Boosters (AREA)
Description
第１図は本考案の一実施例であるスプリングブ
レーキ装置を示す縦断面図、第２図はその取り付
け状態を示す縦断面図である。第３図は本考案の
他の実施例を示す縦断面図である。第４図は本考
案に係るスプリングブレーキ装置の他の適用例を
示す縦断面図である。
１…スプリングブレーキ装置、２…本体、３…
ピストン、４…圧力側チヤンバ、５…エア導入口
、６…大気側チヤンバ、７…開口、８…逆止弁、
９…操作部材、１０…プツシユロツド、１１…ス
プリング、１２…ガイド、１３…雌ねじ、１４…
ロツドホルダ、１５…雄ねじ、１６…係合部、１
７…係合部材、１８…ナツト、１９…ピン、２０
…逆止弁（制御弁）、２１…制御弁、２２…防塵
カバー、２３…環状溝、２４…ウエツジブレーキ
作動装置、２５…ブレーキシユー、２６…ホイー
ルシリンダ、２７…ピストン、２８…ウエツジ、
２８Ａ…スプリング、２９…ローラ、３０…ピス
トン、３１…弁室、３２…入口ポート、３３…出
口ポート、３４…弁座、３５…制御ピストン、３
６…弁体部、３７…弁通路、３８…排気弁、３９
…Ｓ字カム、４０…スプリングブレーキ。
FIG. 1 is a vertical cross-sectional view showing a spring brake device as an embodiment of the present invention, and FIG. 2 is a vertical cross-sectional view showing its installed state. FIG. 3 is a longitudinal sectional view showing another embodiment of the present invention. FIG. 4 is a longitudinal sectional view showing another application example of the spring brake device according to the present invention. 1...Spring brake device, 2...Main body, 3...
Piston, 4...Pressure side chamber, 5...Air inlet, 6...Atmospheric side chamber, 7...Opening, 8...Check valve,
9... Operating member, 10... Push rod, 11... Spring, 12... Guide, 13... Female thread, 14...
Rod holder, 15...male thread, 16...engaging portion, 1
7... Engaging member, 18... Nut, 19... Pin, 20
... Check valve (control valve), 21 ... Control valve, 22 ... Dust cover, 23 ... Annular groove, 24 ... Wedge brake actuation device, 25 ... Brake shoe, 26 ... Wheel cylinder, 27 ... Piston, 28 ... Wedge ,
28A... Spring, 29... Roller, 30... Piston, 31... Valve chamber, 32... Inlet port, 33... Outlet port, 34... Valve seat, 35... Control piston, 3
6... Valve body portion, 37... Valve passage, 38... Exhaust valve, 39
...S-shaped cam, 40...spring brake.
Claims (1)
容積増減可能の２室に仕切る隔壁と、圧縮空気が
給排気される圧力側チヤンバと、大気に連通する
大気側チヤンバと、大気側チヤンバに内装されて
いるスプリングとを備えているスプリングブレー
キ装置において、前記大気側チヤンバの大気連通
口に逆止弁が大気側チヤンバから大気への流通の
みを許容するように介設されており、前記隔壁に
制御弁が設定圧力以下において圧力側チヤンバの
圧縮空気が大気側チヤンバへの流通のみを許容す
るように介設されていることを特徴とするスプリ
ングブレーキ装置。 The main body is formed into an airtight hollow body, the partition wall that partitions the main body into two chambers whose volume can be increased and decreased, a pressure side chamber where compressed air is supplied and exhausted, an atmosphere side chamber that communicates with the atmosphere, and an atmosphere side chamber. In the spring brake device equipped with an internal spring, a check valve is interposed in the atmosphere communication port of the atmosphere side chamber to allow only flow from the atmosphere side chamber to the atmosphere, and the partition wall A spring brake device characterized in that a control valve is interposed therein so as to allow compressed air in the pressure side chamber to flow only to the atmosphere side chamber when the pressure is below a set pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988056803U JPH06285Y2 (en) | 1988-04-27 | 1988-04-27 | Spring brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988056803U JPH06285Y2 (en) | 1988-04-27 | 1988-04-27 | Spring brake device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01161866U true JPH01161866U (en) | 1989-11-10 |
| JPH06285Y2 JPH06285Y2 (en) | 1994-01-05 |
Family
ID=31282665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988056803U Expired - Lifetime JPH06285Y2 (en) | 1988-04-27 | 1988-04-27 | Spring brake device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06285Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5385269A (en) * | 1977-01-06 | 1978-07-27 | Nissan Diesel Motor Co Ltd | Spring brake pressure control device |
| JPS5554625U (en) * | 1978-10-04 | 1980-04-12 |
-
1988
- 1988-04-27 JP JP1988056803U patent/JPH06285Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5385269A (en) * | 1977-01-06 | 1978-07-27 | Nissan Diesel Motor Co Ltd | Spring brake pressure control device |
| JPS5554625U (en) * | 1978-10-04 | 1980-04-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06285Y2 (en) | 1994-01-05 |
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