JPH0213143U - - Google Patents
Info
- Publication number
- JPH0213143U JPH0213143U JP8775888U JP8775888U JPH0213143U JP H0213143 U JPH0213143 U JP H0213143U JP 8775888 U JP8775888 U JP 8775888U JP 8775888 U JP8775888 U JP 8775888U JP H0213143 U JPH0213143 U JP H0213143U
- Authority
- JP
- Japan
- Prior art keywords
- combustion engine
- internal combustion
- pressure
- hydraulic
- signal generating
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims 2
- 230000007935 neutral effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Description
第１図は、車輌搭載クレーンの説明図、第２図
は、本考案の係る車輌搭載クレーンの内燃機関の
回転速度制御装置の実施例の説明図である。第３
図は同他の実施例の説明図である。
車輌；１、内燃機関；１１、油圧ポンプ；１２
、油圧アクチユエータ；３，５，７，１０、四方
向三位置油圧切換弁；１３，１４，１５，１６、
アクセルレバー；１９、回転速度制御装置；Ｂ、
アクセルレバー駆動手段；Ｂａ、制御信号発生部
；Ｂｂ、操作信号発生手段；２０、油圧検出器；
２８。
FIG. 1 is an explanatory diagram of a vehicle-mounted crane, and FIG. 2 is an explanatory diagram of an embodiment of a rotation speed control device for an internal combustion engine of a vehicle-mounted crane according to the present invention. Third
The figure is an explanatory diagram of another embodiment. Vehicle; 1. Internal combustion engine; 11. Hydraulic pump; 12
, hydraulic actuator; 3, 5, 7, 10, four-way three-position hydraulic switching valve; 13, 14, 15, 16,
Accelerator lever; 19, rotational speed control device; B;
Accelerator lever driving means; Ba, control signal generating section; Bb, operation signal generating means; 20, oil pressure detector;
28.
Claims (1)
置を介して人為制御可能な内燃機関により駆動さ
れる油圧ポンプの吐出油を、リリーフ弁によりそ
の最高圧を規制された高圧油路を介して人為操作
可能な中立位置キヤリーオーバ型の四方向三位置
油圧切換弁に導びくと共に、この四方向三位置油
圧切換弁を介して油圧アクチユエータに指向させ
、この油圧アクチユエータにより車輌上に搭載し
たクレーンを駆動するよう構成してなる車輌搭載
クレーンの内燃機関の回転速度制御装置であつて
、内燃機関のアクセルレバーに連動連結され電気
制御信号により駆動制御されるアクセルレバー駆
動手段、および、人為操作される操作信号発生手
段を備えこの操作信号発生手段の発生信号を直接
又は間接的に前記アクセルレバー駆動手段に電気
制御信号として入力する制御信号発生部とで以つ
て構成すると共に、前記高圧油路の油圧を検出す
る油圧検出器を設け、この油圧検出器の検出信号
を前記制御信号発生部に入力し、前記制御信号発
生部は、油圧検出器からの検出信号が前記リリー
フ弁の設定圧力よりも低いあらかじめ定められた
規定圧力に対応する値に達したとき操作信号発生
手段による内燃機関加速方向への前記アクセルレ
バー駆動手段の駆動制御を不能にするよう構成し
てあることを特徴とする車輌搭載クレーンの内燃
機関の回転速度制御装置。 The discharge oil of a hydraulic pump driven by an internal combustion engine mounted on a vehicle and whose rotational speed can be manually controlled via a rotational speed control device is manually controlled via a high-pressure oil line whose maximum pressure is regulated by a relief valve. It is guided to a four-way, three-position hydraulic switching valve with a possible neutral position carry-over type, and is directed to a hydraulic actuator via this four-way, three-position hydraulic switching valve, so that the hydraulic actuator drives a crane mounted on the vehicle. A rotational speed control device for an internal combustion engine of a vehicle-mounted crane, which comprises: an accelerator lever driving means that is interlocked and connected to an accelerator lever of the internal combustion engine and is driven and controlled by an electric control signal; and an operation signal generator that is manually operated. and a control signal generating section for directly or indirectly inputting the generated signal of the operation signal generating means to the accelerator lever driving means as an electric control signal, and detecting the oil pressure of the high pressure oil passage. A hydraulic pressure detector is provided, and a detection signal from the hydraulic pressure detector is inputted to the control signal generating section, and the control signal generating section is configured to provide a predetermined pressure at which the detection signal from the hydraulic pressure detector is lower than the set pressure of the relief valve. An internal combustion engine for a vehicle-mounted crane, characterized in that the internal combustion engine is configured to disable drive control of the accelerator lever drive means in the direction of accelerating the internal combustion engine by the operation signal generating means when the specified pressure reaches a value corresponding to the predetermined pressure. rotation speed control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8775888U JPH0213143U (en) | 1988-06-30 | 1988-06-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8775888U JPH0213143U (en) | 1988-06-30 | 1988-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0213143U true JPH0213143U (en) | 1990-01-26 |
Family
ID=31312355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8775888U Pending JPH0213143U (en) | 1988-06-30 | 1988-06-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0213143U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0569347U (en) * | 1992-02-28 | 1993-09-21 | 株式会社タダノ | Control device for engine accelerator in vehicle-mounted crane |
| WO2008111616A1 (en) * | 2007-03-12 | 2008-09-18 | Tcm Corporation | Control device for working vehicle |
-
1988
- 1988-06-30 JP JP8775888U patent/JPH0213143U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0569347U (en) * | 1992-02-28 | 1993-09-21 | 株式会社タダノ | Control device for engine accelerator in vehicle-mounted crane |
| WO2008111616A1 (en) * | 2007-03-12 | 2008-09-18 | Tcm Corporation | Control device for working vehicle |
| US8567186B2 (en) | 2007-03-12 | 2013-10-29 | Hitachi Construction Machinery Co., Ltd. | Control apparatus for working vehicle |
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