JPH0293360U - - Google Patents
Info
- Publication number
- JPH0293360U JPH0293360U JP70589U JP70589U JPH0293360U JP H0293360 U JPH0293360 U JP H0293360U JP 70589 U JP70589 U JP 70589U JP 70589 U JP70589 U JP 70589U JP H0293360 U JPH0293360 U JP H0293360U
- Authority
- JP
- Japan
- Prior art keywords
- operating
- hydraulic
- lever
- control valve
- interlocking ratio
- 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
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims 1
Landscapes
- Operation Control Of Excavators (AREA)
- Mechanical Control Devices (AREA)
Description
図面は本考案に係る作業車の油圧操作構造の実
施例を示し、第１図は要部の平面図、第２図は要
部の側面図、第３図はローラ係合部の断面図、第
４図は連係機構の断面図、第５図は作業車の全体
側面図、第６図は別実施例の簡略化した要部側面
図である。
２……走行機体、３……旋回機台、６……バツ
クホウ装置、１８……操作レバー、Ａ……切換え
機構、Ｂ……規制機構、Ｍ３……油圧駆動装置、
Ｖ１……制御バルブ。
The drawings show an embodiment of the hydraulic operation structure for a working vehicle according to the present invention, in which Fig. 1 is a plan view of the main part, Fig. 2 is a side view of the main part, and Fig. 3 is a sectional view of the roller engaging part. FIG. 4 is a sectional view of the linkage mechanism, FIG. 5 is an overall side view of the working vehicle, and FIG. 6 is a simplified side view of the main parts of another embodiment. 2... Traveling body, 3... Rotating machine base, 6... Backhoe device, 18... Operating lever, A... Switching mechanism, B... Regulating mechanism, M3 ... Hydraulic drive device,
V1 ...Control valve.
Claims (1)
３により全旋回自在な旋回機台３を搭載し、旋回
機台３側にバツクホウ装置６を装備するとともに
、人為操作レバー１８と前記油圧駆動装置Ｍ３の
油圧制御バルブＶ１とを連動連結してある作業車
の油圧操作構造であつて、前記操作レバー１８の
操作量に対する前記油圧制御バルブＶ１の操作変
位量の連動比率を大小二段に切換え自在な切換え
機構Ａを備え、この切換え機構Ａの連動比率小側
への切換えに連動して、操作レバー１８の操作ス
トロークを連動比率大側でのものと同一範囲に接
当規制するレバー操作量規制機構Ｂを設けてある
作業車の油圧操作構造。 A hydraulic drive device M is mounted on the traveling aircraft 2 around the vertical axis.
3 , it is equipped with a rotating machine stand 3 that can rotate freely, a backhoe device 6 is installed on the side of the rotating machine stand 3, and a manual operation lever 18 and the hydraulic control valve V1 of the hydraulic drive device M3 are interlocked and connected. This is a hydraulic operation structure for a working vehicle, which includes a switching mechanism A that can freely switch the interlocking ratio of the operating displacement amount of the hydraulic control valve V1 to the operating amount of the operating lever 18 into two stages, large and small. Hydraulic pressure of a work vehicle equipped with a lever operation amount regulating mechanism B that regulates the operating stroke of the operating lever 18 to the same range as that when the interlocking ratio is large in conjunction with the switching of the interlocking ratio A to the small side. Operation structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP70589U JPH0730770Y2 (en) | 1989-01-06 | 1989-01-06 | Hydraulic operation structure of work vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP70589U JPH0730770Y2 (en) | 1989-01-06 | 1989-01-06 | Hydraulic operation structure of work vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0293360U true JPH0293360U (en) | 1990-07-25 |
| JPH0730770Y2 JPH0730770Y2 (en) | 1995-07-19 |
Family
ID=31199968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP70589U Expired - Lifetime JPH0730770Y2 (en) | 1989-01-06 | 1989-01-06 | Hydraulic operation structure of work vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0730770Y2 (en) |
-
1989
- 1989-01-06 JP JP70589U patent/JPH0730770Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0730770Y2 (en) | 1995-07-19 |