JPH01103482U - - Google Patents
Info
- Publication number
- JPH01103482U JPH01103482U JP20070687U JP20070687U JPH01103482U JP H01103482 U JPH01103482 U JP H01103482U JP 20070687 U JP20070687 U JP 20070687U JP 20070687 U JP20070687 U JP 20070687U JP H01103482 U JPH01103482 U JP H01103482U
- Authority
- JP
- Japan
- Prior art keywords
- control valve
- control
- operated
- lever
- stop position
- 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
- 230000007935 neutral effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
- Mechanical Control Devices (AREA)
Description
図面は本考案に係る作業車の走行用操作構造の
実施例を示し、第１図は操縦レバー及びコントロ
ールバルブの配設部の後面図、第２図は操縦レバ
ー配設部の平面図、第３図は操縦レバー操作位置
の説明図、第４図は油圧回路図、第５図はドーザ
付きバツクホウの側面図である。
７ａ，７ｂ……走行装置、８……操縦レバー、
１２，１４……摺動スプール、１５，１６……ス
プリング、Ｍ１……左用油圧モータ、Ｍ２……右
用油圧モータ、Ｖ１……第１コントロールバルブ
、Ｖ２……第２コントロールバルブ、Ｆ……前進
位置、Ｒ……後進位置、Ｌ１……第１左旋回位置
、Ｌ２……第２左旋回位置、Ｒ１……第１右旋回
位置、Ｒ２……第２右旋回位置、Ｓ……停止位置
、ｆ……前進位置、ｎ……中立位置、ｒ……後進
位置。
The drawings show an embodiment of the operation structure for driving a work vehicle according to the present invention, in which FIG. 1 is a rear view of the part where the control lever and control valve are arranged, FIG. 2 is a plan view of the part where the control lever is arranged, and FIG. 3 is an explanatory diagram of the operating position of the control lever, FIG. 4 is a hydraulic circuit diagram, and FIG. 5 is a side view of the backhoe with a dozer. 7a, 7b... Traveling device, 8... Control lever,
12, 14...Sliding spool, 15, 16 ...Spring, M1...Left hydraulic motor, M2 ...Right hydraulic motor, V1 ...First control valve, V2 ...Second control valve , F...forward position, R...reverse position, L1 ... first left turning position, L2 ...second left turning position, R1 ...first right turning position, R2 ... second Right turning position, S...stop position, f...forward position, n...neutral position, r...reverse position.
Claims (1)
する左用油圧モータＭ１と右用油圧モータＭ２を
設け、機体の前後方向及び左右方向に揺動自在な
１本の操縦レバー８が停止位置Ｓに操作されると
、前記左用油圧モータＭ１の第１コントロールバ
ルブＶ１及び前記右用油圧モータＭ２のコントロ
ールバルブＶ２が中立位置ｎになり、前記操縦レ
バー８が前記停止位置Ｓから前方に揺動させた前
進位置Ｆに操作されると、前記第１コントロール
バルブＶ１及び前記第２コントロールバルブＶ２
が前進位置ｆになり、前記操縦レバー８が前記停
止位置Ｓから後方に揺動させた後進位置Ｒに操作
されると、前記第１コントロールバルブＶ１及び
前記第２コントロールバルブＶ２が後進位置ｒに
なり、前記操縦レバー８が前記停止位置Ｓから左
側に揺動させた第１左旋回位置Ｌ１に操作される
と、前記第１コントロールバルブＶ１が後進位置
ｒで前記第２コントロールバルブＶ２が前進位置
ｆになり、前記操縦レバー８が前記停止位置Ｓか
ら右側に揺動させた第１右旋回位置Ｒ１に操作さ
れると、前記第１コントロールバルブＶ１が前進
位置ｆで、前記第２コントロールバルブＶ２が後
進位置ｒになり、前記操縦レバー８が前記停止位
置Ｓから左斜め前方に揺動させた第２左旋回位置
Ｌ２に操作されると、前記第１コントロールバル
ブＶ１が中立位置ｎで前記第２コントロールバル
ブＶ２が前進位置ｆになり、前記操縦レバー８が
前記停止位置Ｓから右斜め前方に揺動させた第２
右旋回位置Ｒ２に操作されると、前記第１コント
ロールバルブＶ１が前進位置ｆで前記第２コント
ロールバルブＶ２が中立位置ｎになる状態に前記
操縦レバー８と前記第１コントロールバルブＶ１
及び前記第２コントロールバルブＶ２とを連動連
結した作業車の走行用操作構造であつて、前記操
縦レバー８が前記停止位置Ｓから前記前進位置Ｆ
及び前記後進位置Ｒに操作されるに伴い同一長さ
を伸張変形されて前記操縦レバー８を互に左右反
対側に同一付勢力で引張り操作する状態で左右一
対のスプリング１５，１６を前記操縦レバー８に
連結してある作業車の走行用操作構造。 ２ 前記第１コントロールバルブＶ１及び前記第
２コントロールバルブＶ２が摺動スプール１２ま
たは１４を備えている実用新案登録請求の範囲第
１項に記載の構造。[Scope of Claim for Utility Model Registration] 1. A left hydraulic motor M1 and a right hydraulic motor M2 that separately drive a pair of left and right traveling devices 7a and 7b are provided, and the vehicle body is swingable in the front-rear direction and the left-right direction. When the main control lever 8 is operated to the stop position S, the first control valve V1 of the left hydraulic motor M1 and the control valve V2 of the right hydraulic motor M2 go to the neutral position n, and the control When the lever 8 is operated from the stop position S to the forward movement position F, the first control valve V 1 and the second control valve V 2 are moved forward.
is in the forward position f, and when the control lever 8 is operated from the stop position S to the reverse position R, the first control valve V1 and the second control valve V2 are moved to the reverse position. r, and the control lever 8 is operated from the stop position S to the first left turning position L1 , which is swung leftward from the stop position S, the first control valve V1 is moved to the reverse position r, and the second control valve When V 2 is in the forward position f and the control lever 8 is operated from the stop position S to the first right turning position R 1 , which is swung to the right, the first control valve V 1 is in the forward position f. Then, when the second control valve V2 is in the reverse position r and the control lever 8 is operated from the stop position S to the second left turning position L2 , which is swung diagonally forward to the left, the first The control valve V1 is in the neutral position n, the second control valve V2 is in the forward position f, and the control lever 8 is in the second position which is swung diagonally forward to the right from the stop position S.
When operated to the right turning position R2 , the control lever 8 and the first control valve V are brought into a state where the first control valve V1 is in the forward position f and the second control valve V2 is in the neutral position n. 1
and the second control valve V2 , the control lever 8 moves from the stop position S to the forward position F.
As the control levers 8 are stretched and deformed by the same length as they are operated to the reverse position R, the pair of left and right springs 15 and 16 are pulled to the left and right opposite sides with the same biasing force. Operation structure for driving the work vehicle connected to 8. 2. The structure according to claim 1, wherein the first control valve V 1 and the second control valve V 2 are provided with a sliding spool 12 or 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20070687U JPH01103482U (en) | 1987-12-28 | 1987-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20070687U JPH01103482U (en) | 1987-12-28 | 1987-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01103482U true JPH01103482U (en) | 1989-07-12 |
Family
ID=31491100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20070687U Pending JPH01103482U (en) | 1987-12-28 | 1987-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01103482U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04197878A (en) * | 1990-11-29 | 1992-07-17 | Kensetsusho Hokurikuchihou Kensetsukyoku | Steering apparatus for working vehicle |
-
1987
- 1987-12-28 JP JP20070687U patent/JPH01103482U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04197878A (en) * | 1990-11-29 | 1992-07-17 | Kensetsusho Hokurikuchihou Kensetsukyoku | Steering apparatus for working vehicle |
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