JPS59186175U - Rear wheel steering lock device - Google Patents
Rear wheel steering lock deviceInfo
- Publication number
- JPS59186175U JPS59186175U JP8104283U JP8104283U JPS59186175U JP S59186175 U JPS59186175 U JP S59186175U JP 8104283 U JP8104283 U JP 8104283U JP 8104283 U JP8104283 U JP 8104283U JP S59186175 U JPS59186175 U JP S59186175U
- Authority
- JP
- Japan
- Prior art keywords
- steering
- rear wheel
- lock
- hydraulic cylinder
- wheel steering
- 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
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
- Arrangement And Driving Of Transmission Devices (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
図面は本考案の実施例を示す回路図である。
１は操向切換弁、３は操向弁、５，６は油圧シリンダ、
７は操向モードスイッチ、１０はロックピン、１１はシ
リンダ、１２はロック操作弁、１２ａ、１２ｂはソレノ
イド、１３はロック確認スイッチ、１４は解除確認スイ
ッチ、１５はセンタ検出スイッチ、１６は後輪操向スイ
ッチ、１７は電源、１８２〜１８ｅはリレー、２１．２
２はインジケータ。The drawing is a circuit diagram showing an embodiment of the present invention. 1 is a steering switching valve, 3 is a steering valve, 5 and 6 are hydraulic cylinders,
7 is a steering mode switch, 10 is a lock pin, 11 is a cylinder, 12 is a lock operation valve, 12a, 12b are solenoids, 13 is a lock confirmation switch, 14 is a release confirmation switch, 15 is a center detection switch, 16 is a rear wheel Steering switch, 17 is power supply, 182 to 18e are relays, 21.2
2 is an indicator.
Claims (1)
リンダ６．６を有し、これらの油圧シリンダ５． ５．
６． ６と操向弁３との間に、前輪操゛向用の油圧シ
リンダ５．５へのみ圧油を送る中立位置ａと、上記各油
圧シリンダ５． ５． ６． ６に圧油を送る４輪操向
操作位置すと、蟹操向操作位置Ｃとを有する電磁式の操
向切換弁１を介装し、この操向切換弁１の切換用の電磁
ソレノイドに操−向モードスイッチ７を接続し、また後
輪操向操作をロック子るロックビイ１０を有し、このロ
ックピン１０を作動する油圧シリンダ１１と油圧源との
間に電磁式のロック操作弁１２を介装した後輪操向ロッ
ク装置において、ロック操作弁１２のロック用ソレノイ
ド１２ａと電源１７とを、後輪操向スイッチ１６がロ゛
シク位置となったときに電源に接続される第１のリレー
１８８の一方の端子と、後輪が直送状態となったときに
ＯＮとなる第３のリレー１８Ｃと、ロックが解除されて
いるときにＯＮとなる第４のり゛シー１８ｄを介して接
続し、−またロック操作弁１２−の解除用ソレノイド１
２ｂと電源１７とを、後輪操向スイッチ１６が解除位置
のときに電源１７に接続される第１リレー１８ａの他方
の端子と、ロック状態のときにＯＮとなる第２のリレー
１８ｂを介して接続し、さらに操向モー゛ド反イッチ７
をロックが解除されているときにのみＯＮとなっている
解除確認スイッチ１４を介して電源に接続したことを特
徴とする後輪操向ロック装置。 ゛It has a hydraulic cylinder 5.5 for steering the front wheels and a hydraulic cylinder 6.6 for steering the rear wheels. 5.
6. 6 and the steering valve 3, there is a neutral position a in which pressure oil is sent only to the hydraulic cylinder 5.5 for steering the front wheels, and a neutral position a that sends pressure oil only to the hydraulic cylinder 5.5 for steering the front wheels, and a neutral position a that sends pressure oil only to the hydraulic cylinder 5.5 for steering the front wheels. 5. 6. An electromagnetic steering switching valve 1 having a four-wheel steering operating position C and a crab steering operating position C is installed, and an electromagnetic solenoid for switching the steering switching valve 1 is installed. A lock pin 10 is connected to the steering mode switch 7 and locks the rear wheel steering operation, and an electromagnetic lock operation valve 12 is provided between the hydraulic cylinder 11 that operates the lock pin 10 and the hydraulic power source. In the rear wheel steering lock device, the locking solenoid 12a of the lock operation valve 12 and the power source 17 are connected to a first One terminal of the relay 188 is connected to the third relay 18C, which is turned ON when the rear wheel is in the direct feed state, and the fourth relay 18D, which is turned ON when the lock is released. -Also, a solenoid 1 for releasing the lock operation valve 12-
2b and the power source 17 through the other terminal of the first relay 18a, which is connected to the power source 17 when the rear wheel steering switch 16 is in the release position, and the second relay 18b, which is turned on when the rear wheel steering switch 16 is in the locked state. and then turn the steering mode reverse switch 7.
A rear wheel steering lock device characterized in that the rear wheel steering lock device is connected to a power source via a release confirmation switch 14 that is turned on only when the lock is released.゛
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8104283U JPS59186175U (en) | 1983-05-31 | 1983-05-31 | Rear wheel steering lock device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8104283U JPS59186175U (en) | 1983-05-31 | 1983-05-31 | Rear wheel steering lock device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59186175U true JPS59186175U (en) | 1984-12-11 |
| JPH0139624Y2 JPH0139624Y2 (en) | 1989-11-28 |
Family
ID=30211015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8104283U Granted JPS59186175U (en) | 1983-05-31 | 1983-05-31 | Rear wheel steering lock device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59186175U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57175469A (en) * | 1981-04-24 | 1982-10-28 | Kato Seisakusho:Kk | Mobile crane |
| JPS59179756U (en) * | 1983-05-20 | 1984-12-01 | 三菱自動車工業株式会社 | rear steering control device |
-
1983
- 1983-05-31 JP JP8104283U patent/JPS59186175U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57175469A (en) * | 1981-04-24 | 1982-10-28 | Kato Seisakusho:Kk | Mobile crane |
| JPS59179756U (en) * | 1983-05-20 | 1984-12-01 | 三菱自動車工業株式会社 | rear steering control device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0139624Y2 (en) | 1989-11-28 |
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