JPH03114667U - - Google Patents
Info
- Publication number
- JPH03114667U JPH03114667U JP2347290U JP2347290U JPH03114667U JP H03114667 U JPH03114667 U JP H03114667U JP 2347290 U JP2347290 U JP 2347290U JP 2347290 U JP2347290 U JP 2347290U JP H03114667 U JPH03114667 U JP H03114667U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- hydraulic
- mechanical brake
- brake device
- state
- 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
- 239000012530 fluid Substances 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009429 electrical wiring Methods 0.000 description 1
Landscapes
- Motor Power Transmission Devices (AREA)
- Control Of Fluid Gearings (AREA)
Description
第１図は本考案の一実施例における制御装置を
備えた車輛の走行用液圧閉回路の回路図、第２図
は同回路における電磁弁の電気結線図、第３図は
別の実施例における電磁弁の電気結線図、第４図
は従来の制御装置を備えた車輛の走行用液圧閉回
路の回路図である。
１……走行用主ポンプ（液圧ポンプ）、３……
走行用モータ（液圧モータ）、５……主回路、１
５……補助ポンプ、１９，２１……配管（分岐管
路）、２０……電磁弁（切換弁）、２２……走行
用メカニカルブレーキ装置、３３……ブースト回
路。
Fig. 1 is a circuit diagram of a hydraulic closed circuit for running a vehicle equipped with a control device according to an embodiment of the present invention, Fig. 2 is an electrical wiring diagram of a solenoid valve in the same circuit, and Fig. 3 is another embodiment of the present invention. FIG. 4 is a circuit diagram of a hydraulic closed circuit for running a vehicle equipped with a conventional control device. 1... Main pump for traveling (hydraulic pump), 3...
Traveling motor (hydraulic motor), 5...Main circuit, 1
5... Auxiliary pump, 19, 21... Piping (branch pipe), 20... Solenoid valve (switching valve), 22... Mechanical brake device for traveling, 33... Boost circuit.
Claims (1)
圧閉回路からなる主回路と、この主回路の低圧側
に圧液を供給するブースト回路と、このブースト
回路に圧液を供給する補助ポンプと、前記ブース
ト回路から分岐した分岐管路を介して圧液が供給
されることによりブレーキ解除状態になる液圧式
の走行用メカニカルブレーキ装置とを備えた車輛
において、前記分岐管路に、前記ブースト回路と
前記走行用メカニカルブレーキ装置とを連通させ
る状態と、前記ブースト回路と前記走行用メカニ
カルブレーキ装置との連通を遮断しかつ前記走行
用メカニカルブレーキ装置の圧液をタンクへ開放
させる状態とに切替わる切換弁を設けたことを特
徴とする車輛の走行用液圧閉回路の制御装置。 ２ 切換弁の作動を電磁操作式とするとともに、
その作動を制御するスイツチを複数個直列に設け
たことを特徴とする実用新案登録請求の範囲第１
項に記載の車輛の走行用液圧閉回路の制御装置。[Claims for Utility Model Registration] 1. A main circuit consisting of a hydraulic closed circuit for driving equipped with a hydraulic pump and a hydraulic motor, a boost circuit that supplies pressure fluid to the low pressure side of this main circuit, and this boost. In a vehicle equipped with an auxiliary pump that supplies pressurized fluid to a circuit, and a hydraulic mechanical brake device for driving that enters a brake release state by being supplied with pressurized fluid through a branch pipe branched from the boost circuit. , a state in which the boost circuit and the mechanical brake device for traveling are communicated with the branch pipe, and a state in which communication between the boost circuit and the mechanical brake device for traveling is cut off and a pressure fluid of the mechanical brake device for traveling is connected to the branch pipe. 1. A control device for a hydraulic closed circuit for running a vehicle, characterized in that a switching valve is provided for switching between a state in which a tank is opened to a tank. 2 The operation of the switching valve is electromagnetically operated, and
Utility model registration claim 1 characterized in that a plurality of switches for controlling the operation are provided in series.
A control device for a hydraulic closed circuit for running a vehicle as described in 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2347290U JPH03114667U (en) | 1990-03-08 | 1990-03-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2347290U JPH03114667U (en) | 1990-03-08 | 1990-03-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03114667U true JPH03114667U (en) | 1991-11-26 |
Family
ID=31526456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2347290U Pending JPH03114667U (en) | 1990-03-08 | 1990-03-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03114667U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS502942U (en) * | 1973-05-14 | 1975-01-13 |
-
1990
- 1990-03-08 JP JP2347290U patent/JPH03114667U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS502942U (en) * | 1973-05-14 | 1975-01-13 |
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