JPS5848699U - aerial work vehicle - Google Patents
aerial work vehicleInfo
- Publication number
- JPS5848699U JPS5848699U JP14547681U JP14547681U JPS5848699U JP S5848699 U JPS5848699 U JP S5848699U JP 14547681 U JP14547681 U JP 14547681U JP 14547681 U JP14547681 U JP 14547681U JP S5848699 U JPS5848699 U JP S5848699U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- oil
- workbench
- boom
- pressure oil
- 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
Links
Landscapes
- Jib Cranes (AREA)
- Forklifts And Lifting Vehicles (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
第１図は空中作業車の側面図、第２図は本考案の１実施
例を示す空中作業車の油圧回路図である。
２：基台、４：起伏シリンダ、１：ブーム、５：作業台
、８：作業台シリンダ、９：調整シリンダ、８ｔ ９
’ ：負荷側圧油室、８″、９″：非負荷側圧油室、
１２：弁（パイロット式逆止弁）、１４：サブシリンダ
１４／：ピストン、１３：油路、１５：絞り、１６：
逆止弁。FIG. 1 is a side view of the aerial working vehicle, and FIG. 2 is a hydraulic circuit diagram of the aerial working vehicle showing one embodiment of the present invention. 2: Base, 4: Lifting cylinder, 1: Boom, 5: Workbench, 8: Workbench cylinder, 9: Adjustment cylinder, 8t 9
': Load side pressure oil chamber, 8'', 9'': Non-load side pressure oil chamber,
12: Valve (pilot type check valve), 14: Sub cylinder 14/: Piston, 13: Oil path, 15: Throttle, 16:
non-return valve.
Claims (1)
持されたブームの先端部に作業台を軸支し、作業台とブ
ーム間に設けた作業台シリンダとブームと基台間にあっ
てブームの起伏動に追随する調整シリンダの負荷側圧油
室同志と非負荷側圧油室同志を連通し、前記負荷側圧油
室同志を連通ずる油路には、非負荷側圧油室同志を連通
ずる油路の昇圧によって開路し、それ以外の時には作業
台シリンダからの油の排出を止める弁を配設し、。 この弁と並列に設けた油路には１、絞りとこの絞りに並
列の関係にあって作業台シリンダ方向への油の流れを許
容する逆止弁を配設すると共にピストンによって画定さ
れた両側の油室を夫々前記作業台シリンダ、調整シリン
ダに連通ずるサブシリンダを配設したことを特徴とする
空中作業車。[Scope of Claim for Utility Model Registration] A workbench provided between the workbench and the boom, with the workbench pivotally supported on the tip of a boom whose base end is pivotally supported via an undulation cylinder to a base so that it can be raised and lowered freely. The pressure oil chambers on the load side and the pressure oil chambers on the non-load side of the adjustment cylinder, which are located between the cylinder, the boom, and the base and follow the up-and-down movement of the boom, communicate with each other, and the oil passages that communicate with the pressure oil chambers on the load side are provided with non-load A valve is installed that opens when the pressure increases in the oil passage that communicates the side pressure oil chambers, and stops oil from being discharged from the work platform cylinder at other times. 1. In the oil passage provided in parallel with this valve, a check valve that is in a parallel relationship with the throttle and allows oil to flow toward the workbench cylinder is installed, and both sides defined by the piston are installed. An aerial work vehicle characterized in that a sub-cylinder is provided which communicates the oil chamber with the work platform cylinder and the adjustment cylinder, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14547681U JPS5848699U (en) | 1981-09-29 | 1981-09-29 | aerial work vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14547681U JPS5848699U (en) | 1981-09-29 | 1981-09-29 | aerial work vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5848699U true JPS5848699U (en) | 1983-04-01 |
| JPS6232238Y2 JPS6232238Y2 (en) | 1987-08-18 |
Family
ID=29938406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14547681U Granted JPS5848699U (en) | 1981-09-29 | 1981-09-29 | aerial work vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5848699U (en) |
-
1981
- 1981-09-29 JP JP14547681U patent/JPS5848699U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6232238Y2 (en) | 1987-08-18 |
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