JPH0469285U - - Google Patents
Info
- Publication number
- JPH0469285U JPH0469285U JP11129090U JP11129090U JPH0469285U JP H0469285 U JPH0469285 U JP H0469285U JP 11129090 U JP11129090 U JP 11129090U JP 11129090 U JP11129090 U JP 11129090U JP H0469285 U JPH0469285 U JP H0469285U
- Authority
- JP
- Japan
- Prior art keywords
- switching valve
- way
- crane
- valve means
- steering wheel
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Steering Controls (AREA)
Description
第２図は、本考案の移動式クレーンのステアリ
ング装置の説明図、第２図および第３図は従来技
術の説明図であつて、第２図は移動式クレーンの
説明図、第３図は従来の移動式クレーンのステア
リング装置の説明図である。
車両……１、車両運転室……１ａ、クレーン部
……２、クレーン運転室……２ａ、ステアリング
ホイール……３、油圧制御装置……４、一対の給
排油路……４ａ，４ｂ、車輪操向用シリンダー…
…５、四方向三位置油圧切替え弁手段……６、制
御ポート……ａ，ｂ、高圧ポート……Ｐ、タンク
ポート……Ｔ、高圧油路……７、タンク油路……
８、ロータリージヨイント……９、操作信号発生
手段……１０、上部ステアリングホイール……１
１、回転方向検出手段……１２。
FIG. 2 is an explanatory diagram of the steering device of the mobile crane of the present invention, and FIGS. 2 and 3 are explanatory diagrams of the prior art, in which FIG. 2 is an explanatory diagram of the mobile crane, and FIG. FIG. 2 is an explanatory diagram of a conventional mobile crane steering device. Vehicle...1, Vehicle cab...1a, Crane section...2, Crane cab...2a, Steering wheel...3, Hydraulic control device...4, Pair of oil supply and drainage channels...4a, 4b, Wheel steering cylinder...
...5. Four-way three-position hydraulic switching valve means...6. Control ports...a, b, High pressure port...P, Tank port...T, High pressure oil line...7. Tank oil line...
8. Rotary joint...9. Operation signal generating means...10. Upper steering wheel...1
1. Rotation direction detection means...12.
補正 平３．２．１２
図面の簡単な説明を次のように補正する。
明細書第１１頁第１行の「第２図は、」の記載
を「第１図は、」に補正する。Amendment 3.2.12 The brief description of the drawing is amended as follows. In the first line of page 11 of the specification, the statement ``FIG. 2 is'' is amended to ``FIG. 1 is''.
Claims (1)
作される油圧制御装置の制御油圧を、一対の給排
油路を介して車輪操向シリンダーに導いて、車輪
を操向操作するよう構成してなる車両に、クレー
ン運転室を備えたクレーン部を旋回自在に搭載し
てなる移動式クレーンに用いられるステアリング
装置、特に、その一対の制御ポートを前記一対の
給排油路にそれぞれ接続すると共にその圧力ポー
トＰおよびタンクポートＴを車両側の高圧油路お
よびタンク油路に接続して車両側に配置したソレ
ノイド操作型の四方向三位置油圧切替え弁手段と
、前記クレーン運転室に設けられ車両とクレーン
部間に取り付けたロータリージヨイントを経由し
て前記四方向三位置油圧切替え弁手段へ操作用の
電気信号を出力する操作信号発生手段とを備えて
おり、前記操作信号発生手段を操作することで、
前記四方向三位置油圧切替え弁手段を右ステアリ
ング状態、左ステアリング状態、および制御ポー
トブロツク状態に切替えるよう構成したものにお
いて、 前記操作信号発生手段を、上部ステアリングホ
イールと、この上部ステアリングホイールに連動
連結され、上部ステアリングホイールの一方また
は他方への回転継続中には前記四方向三位置油圧
切替え弁手段を右または左ステアリング状態に切
り換えるための操作用の電気信号を継続出力し、
上部ステアリングホイールの非回転時には前記四
方向三位置油圧切替え弁手段を制御ポートブロツ
ク状態に維持する操作用の電気信号を出力する回
転方向検出手段とで以て構成してあることを特徴
とする移動式クレーンのステアリング装置。[Scope of Claim for Utility Model Registration] Control hydraulic pressure from a hydraulic control device operated by a steering wheel in a vehicle driver's cab is guided to a wheel steering cylinder through a pair of oil supply and drainage passages to steer the wheels. A steering device used in a mobile crane, in which a crane section equipped with a crane operator's cab is rotatably mounted on a vehicle configured to a solenoid-operated four-way, three-position hydraulic switching valve means disposed on the vehicle side with the pressure port P and tank port T connected to the high-pressure oil passage and tank oil passage on the vehicle side; and the crane operator's cab. and an operation signal generation means for outputting an electric signal for operation to the four-way three-position hydraulic switching valve means via a rotary joint installed between the vehicle and the crane section, and the operation signal generation means By manipulating the means,
In the four-way three-position hydraulic switching valve means configured to switch between a right steering state, a left steering state, and a control port block state, the operation signal generating means is interlocked with an upper steering wheel and the upper steering wheel. and continuously outputs an electric signal for operation to switch the four-way three-position hydraulic switching valve means to the right or left steering state while the upper steering wheel continues to rotate in one direction or the other direction,
and rotation direction detection means for outputting an electric signal for operation to maintain the four-way three-position hydraulic switching valve means in the control port block state when the upper steering wheel is not rotating. Steering device for type crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11129090U JP2528721Y2 (en) | 1990-10-23 | 1990-10-23 | Mobile crane steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11129090U JP2528721Y2 (en) | 1990-10-23 | 1990-10-23 | Mobile crane steering system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0469285U true JPH0469285U (en) | 1992-06-18 |
| JP2528721Y2 JP2528721Y2 (en) | 1997-03-12 |
Family
ID=31858716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11129090U Expired - Fee Related JP2528721Y2 (en) | 1990-10-23 | 1990-10-23 | Mobile crane steering system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2528721Y2 (en) |
-
1990
- 1990-10-23 JP JP11129090U patent/JP2528721Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2528721Y2 (en) | 1997-03-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |