JPH03113388U - - Google Patents

Info

Publication number
JPH03113388U
JPH03113388U JP2091290U JP2091290U JPH03113388U JP H03113388 U JPH03113388 U JP H03113388U JP 2091290 U JP2091290 U JP 2091290U JP 2091290 U JP2091290 U JP 2091290U JP H03113388 U JPH03113388 U JP H03113388U
Authority
JP
Japan
Prior art keywords
cargo box
hydraulic
crane
switching valve
bypass switching
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
Application number
JP2091290U
Other languages
Japanese (ja)
Other versions
JPH0730625Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1990020912U priority Critical patent/JPH0730625Y2/en
Publication of JPH03113388U publication Critical patent/JPH03113388U/ja
Application granted granted Critical
Publication of JPH0730625Y2 publication Critical patent/JPH0730625Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Jib Cranes (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の安全装置を装備したクレーン
付ダンプ車の側面図、第２図は安全装置の詳細図
、第３図は第１図のＡ矢視図、第４図は第３図の
Ｂ矢視図、第５図は第２図のＣ矢視図、第６図は
油圧回路図である。 １……荷箱、２……車体、４……クレーン、５
……ブーム、６……前壁、７……感知装置、１６
……リミツトスイツチ、１７……油圧ポンプ、１
９……油圧シリンダ、２１……オイルタンク、２
３……バイパス切換弁である。 Fig. 1 is a side view of a dump truck with a crane equipped with the safety device of the present invention, Fig. 2 is a detailed view of the safety device, Fig. 3 is a view taken in the direction of arrow A in Fig. 1, and Fig. 4 is a view from Fig. 3. FIG. 5 is a view taken from arrow C in FIG. 2, and FIG. 6 is a hydraulic circuit diagram. 1...Logging box, 2...Car body, 4...Crane, 5
...Boom, 6...Front wall, 7...Sensing device, 16
... Limit switch, 17 ... Hydraulic pump, 1
9... Hydraulic cylinder, 21... Oil tank, 2
3...This is a bypass switching valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 油圧ポンプからの作動油を油圧回路中の油圧シ
リンダ内に流入させ、この油圧シリンダの伸長作
動により傾動する荷箱を車体上に搭載し、前記荷
箱の前方の車体上にはブームを後方の荷箱上に格
納するクレーンを搭載してなるクレーン付ダンブ
車において、前記油圧回路中に油圧ポンプからの
作動油をオイルタンクにバイパスさせるバイパス
切換弁を設け、荷箱の前壁の上部には、荷箱が傾
動して前記クレーンに当接するのを感知し、前記
バイパス切換弁を切換える感知装置を設けてなる
クレーン付ダンプ車における安全装置。 Hydraulic oil from a hydraulic pump flows into a hydraulic cylinder in a hydraulic circuit, and a cargo box that tilts when the hydraulic cylinder extends is mounted on the vehicle body, and a boom is mounted on the vehicle body in front of the cargo box. In a crane-equipped dump truck equipped with a crane stored on a cargo box, a bypass switching valve is provided in the hydraulic circuit to bypass hydraulic oil from the hydraulic pump to an oil tank, and a bypass switching valve is provided in the upper part of the front wall of the cargo box. A safety device for a dump truck with a crane, comprising a sensing device that detects when a cargo box tilts and comes into contact with the crane, and switches the bypass switching valve.
JP1990020912U 1990-02-28 1990-02-28 Safety device for dump truck with crane Expired - Lifetime JPH0730625Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990020912U JPH0730625Y2 (en) 1990-02-28 1990-02-28 Safety device for dump truck with crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990020912U JPH0730625Y2 (en) 1990-02-28 1990-02-28 Safety device for dump truck with crane

Publications (2)

Publication Number Publication Date
JPH03113388U true JPH03113388U (en) 1991-11-19
JPH0730625Y2 JPH0730625Y2 (en) 1995-07-12

Family

ID=31523995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990020912U Expired - Lifetime JPH0730625Y2 (en) 1990-02-28 1990-02-28 Safety device for dump truck with crane

Country Status (1)

Country Link
JP (1) JPH0730625Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011207302A (en) * 2010-03-29 2011-10-20 Shinmaywa Industries Ltd Dump truck

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5568433A (en) * 1978-02-23 1980-05-23 Shin Meiwa Ind Co Ltd Interference preventive device of bed and crane boom of dump truck with crane

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5568433A (en) * 1978-02-23 1980-05-23 Shin Meiwa Ind Co Ltd Interference preventive device of bed and crane boom of dump truck with crane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011207302A (en) * 2010-03-29 2011-10-20 Shinmaywa Industries Ltd Dump truck

Also Published As

Publication number Publication date
JPH0730625Y2 (en) 1995-07-12

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