JPS5979603U - Hydraulic device for lifting work equipment - Google Patents
Hydraulic device for lifting work equipmentInfo
- Publication number
- JPS5979603U JPS5979603U JP17523182U JP17523182U JPS5979603U JP S5979603 U JPS5979603 U JP S5979603U JP 17523182 U JP17523182 U JP 17523182U JP 17523182 U JP17523182 U JP 17523182U JP S5979603 U JPS5979603 U JP S5979603U
- Authority
- JP
- Japan
- Prior art keywords
- lifting
- lowering
- oil passage
- oil
- working equipment
- 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
Landscapes
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図面は本考案に係る作業装置昇降用油圧装置の実施例を
例示し、第１図は作業装置連結状態を示す斜視図、第２
図は傾斜センサーを示す一部切欠き斜視図、第３図は油
圧回路図である。
６・・・・・・複動型油圧シリンダ１．１３．１４・・
・・・・油路、１５・・・・・・パイロット式逆止弁、
１６・・・・・・絞り弁、１７・・・・・・逆止弁。The drawings illustrate an embodiment of the hydraulic system for lifting and lowering a working device according to the present invention, and FIG. 1 is a perspective view showing a state in which the working device is connected, and FIG.
The figure is a partially cutaway perspective view showing the tilt sensor, and FIG. 3 is a hydraulic circuit diagram. 6...Double acting hydraulic cylinder 1.13.14...
...Oil passage, 15...Pilot type check valve,
16... Throttle valve, 17... Check valve.
Claims (1)
作業装置下降作動時の排油側油路１４に、他方の圧油供
給側油路１３の油圧によって開路されるパイロット式逆
止弁１５を設けた作業装置昇降用油圧装置であって、前
記排油側油路１４に、絞り弁１６と前記油圧シリンダ６
からの排油流動を阻止する逆止弁１７を並列状に組込ん
であることを特徴とする作業装置昇降用油圧装置。 ■ 前記絞り弁１６及び逆止弁１７を、前記パイロット
式逆止弁１５と゛前記油圧゛シリンダ６との間の前記排
油側油路１４に組込んであることを特徴とする実用新案
登録請求の範囲第０項に記載の作業装置昇降用油圧装置
。[Scope of Claim for Utility Model Registration] ■ In the double-acting hydraulic cylinder 6 for lifting and lowering the working equipment B, the drain oil passage 14 is opened by the hydraulic pressure of the other pressure oil supply oil passage 13 when the working equipment is lowered. This is a hydraulic system for lifting and lowering working equipment, which is equipped with a pilot type check valve 15, in which a throttle valve 16 and a hydraulic cylinder 6 are provided in the oil drain side oil passage 14.
A hydraulic system for lifting and lowering working equipment, characterized in that it incorporates check valves 17 in parallel to prevent the flow of drained oil from the work equipment. (1) A utility model registration request characterized in that the throttle valve 16 and the check valve 17 are incorporated in the oil drain side oil passage 14 between the pilot check valve 15 and the hydraulic cylinder 6. A hydraulic system for lifting and lowering a working device according to item 0 in the range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17523182U JPS5979603U (en) | 1982-11-18 | 1982-11-18 | Hydraulic device for lifting work equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17523182U JPS5979603U (en) | 1982-11-18 | 1982-11-18 | Hydraulic device for lifting work equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5979603U true JPS5979603U (en) | 1984-05-29 |
Family
ID=30381282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17523182U Pending JPS5979603U (en) | 1982-11-18 | 1982-11-18 | Hydraulic device for lifting work equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5979603U (en) |
-
1982
- 1982-11-18 JP JP17523182U patent/JPS5979603U/en active Pending
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