JPS5471269A - Controlling valve for spring brake actuator - Google Patents
Controlling valve for spring brake actuatorInfo
- Publication number
- JPS5471269A JPS5471269A JP13044277A JP13044277A JPS5471269A JP S5471269 A JPS5471269 A JP S5471269A JP 13044277 A JP13044277 A JP 13044277A JP 13044277 A JP13044277 A JP 13044277A JP S5471269 A JPS5471269 A JP S5471269A
- Authority
- JP
- Japan
- Prior art keywords
- handle
- output port
- port
- communicated
- valve body
- 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.)
- Pending
Links
Abstract
PURPOSE: To incorporate a mechanism for tentatively releasing the braking operation in an emergency brake active state into a controlling valve of an automatic spring actuator thereby to obtain a device of high safety, which can be operated by one handle.
CONSTITUTION: A control valve 1 is provided with supply ports 2 and 3, an output port 4 and an exhaust port, and further with a housing 7, a first valve body 8 and a second valve body 9. When the handle 21 of the first valve body 8 is in a first position where the handle is drawn nearest, only an exhaust port 5 is communicated with an output port 4, and when the handle 21 is in a second position where the handle is thrusted at first stage, only a first supply port 2 is communicated with the output port 4. Further, when the handle 21 is in a third position where the handle is thrusted utmost, only a second supply port 3 is communicated with the output port 4. According to the above described organization, the brake circuit becomes simple, and running, parking emergency braking operations and temporary brake releasing operation can be carried out by a handle. Further, the temporary brake releasing operation is carried out only while handle is operated for said operation, and therefore a high safety is attained.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13044277A JPS5471269A (en) | 1977-10-31 | 1977-10-31 | Controlling valve for spring brake actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13044277A JPS5471269A (en) | 1977-10-31 | 1977-10-31 | Controlling valve for spring brake actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5471269A true JPS5471269A (en) | 1979-06-07 |
Family
ID=15034333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13044277A Pending JPS5471269A (en) | 1977-10-31 | 1977-10-31 | Controlling valve for spring brake actuator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5471269A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61139549A (en) * | 1984-12-10 | 1986-06-26 | アライド・コーポレーション | Control valve |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3740106A (en) * | 1971-04-26 | 1973-06-19 | Berg Manufacturing Co | Brake system control valve |
-
1977
- 1977-10-31 JP JP13044277A patent/JPS5471269A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3740106A (en) * | 1971-04-26 | 1973-06-19 | Berg Manufacturing Co | Brake system control valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61139549A (en) * | 1984-12-10 | 1986-06-26 | アライド・コーポレーション | Control valve |
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