JPS62103861U - - Google Patents
Info
- Publication number
- JPS62103861U JPS62103861U JP19699285U JP19699285U JPS62103861U JP S62103861 U JPS62103861 U JP S62103861U JP 19699285 U JP19699285 U JP 19699285U JP 19699285 U JP19699285 U JP 19699285U JP S62103861 U JPS62103861 U JP S62103861U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- boom cylinder
- solenoid valve
- construction machinery
- cylinder
- 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
- 238000010276 construction Methods 0.000 claims 2
- 230000008602 contraction Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Component Parts Of Construction Machinery (AREA)
Description
第１図はバツクホーの全体側面図、第２図は本
考案の安全装置をバツクホーのメインブーム９部
分に実施した回路図、第３図は同じく全体の制御
回路図、第４図はエンジンＥのチヤージ回路の回
路図である。
Ｃ……チヤージ回路、Ｅ……エンジン、１……
ブームシリンダー、２……ソレノイドバルブ、３
……油圧制御バルブ、５……ジエネレーター、９
……メインブーム、１０……アームシリンダー、
１２……バケツトシリンダー、１３……バケツト
、１４……ブレードアーム。
Figure 1 is an overall side view of the Batshoe, Figure 2 is a circuit diagram showing the safety device of the present invention applied to the main boom 9 section of the Batshoe, Figure 3 is the overall control circuit diagram, and Figure 4 is a diagram of the engine E. FIG. 3 is a circuit diagram of a charge circuit. C...Charge circuit, E...Engine, 1...
Boom cylinder, 2...Solenoid valve, 3
... Hydraulic control valve, 5 ... Generator, 9
...Main boom, 10...Arm cylinder,
12... Bucket cylinder, 13... Bucket, 14... Blade arm.
Claims (1)
ームシリンダー１において、該ブームシリンダー
１の縮小側の油室１ａとブームシリンダー１を制
御する油圧制御バルブ３との間に、ソレノイドバ
ルブ２を介装し、該ソレノイドバルブ２を適宜ス
イツチと連動して開閉し、ブームシリンダー１の
縮小をロツクしたことを特徴とする建設機械のブ
ームロツク装置。 In a boom cylinder 1 that operates a vertical movement boom such as construction machinery, a solenoid valve 2 is interposed between an oil chamber 1a on the contraction side of the boom cylinder 1 and a hydraulic control valve 3 that controls the boom cylinder 1. A boom locking device for construction machinery, characterized in that the solenoid valve 2 is opened and closed in conjunction with a switch as appropriate to lock the boom cylinder 1 from being retracted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19699285U JPS62103861U (en) | 1985-12-20 | 1985-12-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19699285U JPS62103861U (en) | 1985-12-20 | 1985-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62103861U true JPS62103861U (en) | 1987-07-02 |
Family
ID=31156311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19699285U Pending JPS62103861U (en) | 1985-12-20 | 1985-12-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62103861U (en) |
-
1985
- 1985-12-20 JP JP19699285U patent/JPS62103861U/ja active Pending