JPH0168713U - - Google Patents
Info
- Publication number
- JPH0168713U JPH0168713U JP1987164148U JP16414887U JPH0168713U JP H0168713 U JPH0168713 U JP H0168713U JP 1987164148 U JP1987164148 U JP 1987164148U JP 16414887 U JP16414887 U JP 16414887U JP H0168713 U JPH0168713 U JP H0168713U
- Authority
- JP
- Japan
- Prior art keywords
- spool
- drain oil
- oil chamber
- control valve
- hydraulic control
- 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
- Transplanting Machines (AREA)
Description
第１図は乗用田植機の植付部と昇降操作レバー
１と油圧制御弁Ｖの部分の斜視図、第２図は油圧
制御弁Ｖの断面図、第３図は本考案の田植機のフ
ロート押圧機構の油圧回路図である。
Ｖ…油圧制御弁、１…昇降操作レバー、２…ス
プール、２ａ…押圧端部、２ｂ…ピストン端部、
３…バルブケース、４…連動ワイヤー、４ａ…ア
ウターワイヤー、４ｂ…インナワイヤー、７…固
定絞り、８…ドレイン油室ケース、８ａ…ドレイ
ン油室、９…可変絞り。
Fig. 1 is a perspective view of the planting section, lifting control lever 1, and hydraulic control valve V of the riding rice transplanter, Fig. 2 is a sectional view of the hydraulic control valve V, and Fig. 3 is a float of the rice transplanter of the present invention. FIG. 3 is a hydraulic circuit diagram of the pressing mechanism. V... Hydraulic control valve, 1... Lifting operation lever, 2... Spool, 2a... Pressing end, 2b... Piston end,
3... Valve case, 4... Interlocking wire, 4a... Outer wire, 4b... Inner wire, 7... Fixed throttle, 8... Drain oil chamber case, 8a... Drain oil chamber, 9... Variable throttle.
Claims (1)
ンサーをフロートＦにより兼用し、該フロートＦ
の上昇を連動機構を介して、リフトアーム１７の
昇降回動を制御する油圧制御弁Ｖに伝達し、該油
圧制御弁Ｖのスプール２を押動操作させる構成に
おいて、該スプール２の端部が嵌入するドレイン
油室８ａを構成し、該ドレイン油室８ａにスプー
ル２からのドレイン油圧を導びくことによりスプ
ール２の上昇側への切換移動に抵抗を与えること
を特徴とする田植機のフロート押圧機構。 Float F also serves as a planting depth sensor that controls the planting depth of the rice transplanter to a constant level.
In a configuration in which the rise of the spool 2 is transmitted via an interlocking mechanism to the hydraulic control valve V that controls the vertical movement of the lift arm 17, and the spool 2 of the hydraulic control valve V is pushed and operated, the end of the spool 2 is A float press for a rice transplanter characterized in that it forms a drain oil chamber 8a that fits into the drain oil chamber 8a, and provides resistance to the switching movement of the spool 2 to the upward side by guiding the drain oil pressure from the spool 2 to the drain oil chamber 8a. mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987164148U JPH0168713U (en) | 1987-10-26 | 1987-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987164148U JPH0168713U (en) | 1987-10-26 | 1987-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0168713U true JPH0168713U (en) | 1989-05-08 |
Family
ID=31449503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987164148U Pending JPH0168713U (en) | 1987-10-26 | 1987-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0168713U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59615B2 (en) * | 1974-02-09 | 1984-01-07 | 東レ株式会社 | Non-twisted, non-sizing polyester yarn |
-
1987
- 1987-10-26 JP JP1987164148U patent/JPH0168713U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59615B2 (en) * | 1974-02-09 | 1984-01-07 | 東レ株式会社 | Non-twisted, non-sizing polyester yarn |