JPH03127691U - - Google Patents
Info
- Publication number
- JPH03127691U JPH03127691U JP3730290U JP3730290U JPH03127691U JP H03127691 U JPH03127691 U JP H03127691U JP 3730290 U JP3730290 U JP 3730290U JP 3730290 U JP3730290 U JP 3730290U JP H03127691 U JPH03127691 U JP H03127691U
- Authority
- JP
- Japan
- Prior art keywords
- winch
- relief valve
- valve
- crane
- 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.)
- Pending
Links
- 239000010720 hydraulic oil Substances 0.000 claims 1
- 230000036544 posture Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Jib Cranes (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図はこの考案による油圧ウインチ操作油圧
回路の第１実施例、第２図は同じく第２実施例、
第３図は従来の自走式クレーン車において走行姿
勢と作業姿勢の２つの車両姿勢間の変更作業の説
明図、第４図は従来の油圧ウインチ操作油圧回路
図である。
１０……切換リリーフ弁、１１…低圧リリーフ
弁、１２……切換弁、２０……切換式減圧弁、２
１……減圧弁、２２……切換弁。
FIG. 1 shows a first embodiment of the hydraulic winch operating hydraulic circuit according to this invention, and FIG. 2 shows a second embodiment of the same.
FIG. 3 is an explanatory diagram of a conventional self-propelled crane vehicle changing between two vehicle postures, a traveling posture and a working posture, and FIG. 4 is a conventional hydraulic winch operation hydraulic circuit diagram. 10...Switching relief valve, 11...Low pressure relief valve, 12...Switching valve, 20...Switching pressure reducing valve, 2
1...Pressure reducing valve, 22...Switching valve.
Claims (1)
業姿勢との２姿勢間の変更作業をブームの起伏回
動操作のみで行なえるように、ウインチ操作油圧
回路のクラツチ圧設定用種リリーフ弁に、低圧リ
リーフ弁と切換え弁とから成る切換リリーフ弁を
併設したことを特長とする、クレーン用ウインチ
の巻上力可変装置。 (2) 上記請求項第１項におけるウインチ操作油
圧回路のクラツチ作動油路に、減圧弁と切換弁を
設けたことを特長とする、クレーン用ウインチの
巻上力可変装置。[Scope of Claim for Utility Model Registration] (1) In a self-propelled crane vehicle, the winch operating hydraulic circuit is designed to enable the work to change between the traveling position and the working position only by raising and rotating the boom. A variable hoisting force device for a winch for a crane, characterized by a switching relief valve consisting of a low-pressure relief valve and a switching valve attached to a clutch pressure setting type relief valve. (2) A variable hoisting force device for a winch for a crane, characterized in that a pressure reducing valve and a switching valve are provided in the clutch hydraulic oil passage of the winch operating hydraulic circuit according to claim 1 above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3730290U JPH03127691U (en) | 1990-04-09 | 1990-04-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3730290U JPH03127691U (en) | 1990-04-09 | 1990-04-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03127691U true JPH03127691U (en) | 1991-12-24 |
Family
ID=31544288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3730290U Pending JPH03127691U (en) | 1990-04-09 | 1990-04-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03127691U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021020804A (en) * | 2019-07-30 | 2021-02-18 | 株式会社タダノ | Boom device and crane vehicle |
-
1990
- 1990-04-09 JP JP3730290U patent/JPH03127691U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021020804A (en) * | 2019-07-30 | 2021-02-18 | 株式会社タダノ | Boom device and crane vehicle |
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