JPH03330U - - Google Patents
Info
- Publication number
- JPH03330U JPH03330U JP6115889U JP6115889U JPH03330U JP H03330 U JPH03330 U JP H03330U JP 6115889 U JP6115889 U JP 6115889U JP 6115889 U JP6115889 U JP 6115889U JP H03330 U JPH03330 U JP H03330U
- Authority
- JP
- Japan
- Prior art keywords
- oil passage
- valve
- hydraulic
- opening
- closing valve
- 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
- 239000003921 oil Substances 0.000 claims description 20
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 claims 1
Landscapes
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Description
第１図は本案一実施例の要部を示す横断平面図
（断面は第６図のＩ−Ｉ線に沿う。）、第２図は
同実施例を装備するトラクタの一部分を示す縦断
側面図、第３図は第２図の−線にほぼ沿つた
縦断正面図、第４図は上記トラクタに設けられた
油圧回路の要部を示す回路図、第５図は第２図の
−線に沿つた拡大断面図、第６図は第５図の
−線にほぼ沿つた拡大断面図、第７図は第６
図の−線にほぼ沿つた断面図、第８図は第６
図の−線に沿つた断面図、第９図は上記トラ
クタの一部を示す概略斜視図、第１０図は第１図
の一部分を異なつた状態で画いた横断平面図、第
１１図及び第１２図はそれぞれ、第１図に類似の
横断平面図で作用を説明するためのものである。
１Ｆ，１Ｒ…油圧クラツチ、２…インチングバ
ルブ、２ｃ，２ｄ……油路穴、３…油路、４…油
路開閉弁、４ａ，４ｂ…ランド、５…スプリング
、６…押圧部材、７…油圧作用油路、１１…ペダ
ル、１２…エンジン、１６…原動軸、１７…クラ
ツチ軸、２０…出力軸、４６…分流弁、５０…方
向切換弁、５９…バルブケース、６２Ｐ…ポンプ
ポート、６２Ｆ…前進クラツチポート、６２Ｒ…
後進クラツチポート、６２Ｔ…タンクポート、７
１…作動油通路、７７…操作軸、７９…アーム、
８０…作動ピン、８１…作動板。
Fig. 1 is a cross-sectional plan view showing the main parts of the present embodiment (the cross section is taken along the line I-I in Fig. 6), and Fig. 2 is a longitudinal cross-sectional side view showing a part of a tractor equipped with the same embodiment. , FIG. 3 is a longitudinal sectional front view taken approximately along the - line in FIG. 2, FIG. 6 is an enlarged sectional view taken almost along the - line in FIG. 5, and FIG.
A sectional view taken approximately along the - line in the figure, Figure 8 is the 6th section.
9 is a schematic perspective view showing a part of the tractor, FIG. 10 is a cross-sectional plan view showing a part of FIG. 1 in different states, FIG. 11 and FIG. Each of FIGS. 12 and 12 is a cross-sectional plan view similar to FIG. 1 for explaining the operation. 1F, 1R... Hydraulic clutch, 2... Inching valve, 2c, 2d... Oil passage hole, 3... Oil passage, 4... Oil passage opening/closing valve, 4a, 4b... Land, 5... Spring, 6... Pressing member, 7... Hydraulic oil passage, 11...Pedal, 12...Engine, 16...Driving shaft, 17...Clutch shaft, 20...Output shaft, 46...Diversion valve, 50...Directional switching valve, 59...Valve case, 62P...Pump port, 62F ...Forward clutch port, 62R...
Reverse clutch port, 62T...Tank port, 7
1... Hydraulic oil passage, 77... Operating shaft, 79... Arm,
80... Actuation pin, 81... Actuation plate.
Claims (1)
チ１Ｆ，１Ｒに対する作用油圧を減圧度可変に減
圧して油圧クラツチ１Ｆ，１Ｒをスリツプ運転可
能とするインチングバルブ２を設けてある車両用
油圧クラツチの作動制御装置において、前記イン
チングバルブ２の一次側に導かれた油路３を遮断
する油路遮断位置と該油路３を開放する油路開放
位置とを備える油路開閉弁４を設けて、この油路
開閉弁４を油路遮断位置方向に変位付勢するスプ
リング５と前記インチングバルブ２の減圧操作に
連動して油路開放位置へと変位させる押圧部材６
とを設ける一方、上記スプリング５による附勢方
向反対側から上記油路３の油圧を油路開閉弁４に
対し作用させて該開閉弁４を油路開放位置に保持
するための油圧作用油路７を、この油圧作用油路
７が上記油路開閉弁４により該開閉弁４の上記油
路遮断位置では遮断され上記油路開放位置では開
放されるように配して設けたことを特徴としてな
る作動制御装置。 ２ 前記インチングバルブ２を、減圧方向に最大
限に変位操作されると油圧をドレーンするものに
構成してある、請求項１に記載の作動制御装置。[Scope of Claim for Utility Model Registration] 1. An inching valve 2 is provided to enable slip operation of the hydraulic clutches 1F, 1R by reducing the hydraulic pressure applied to the hydraulic clutches 1F, 1R inserted into the travel power transmission path in a variable pressure reduction degree. In an operation control device for a hydraulic clutch for a vehicle, an oil passage has an oil passage blocking position for blocking an oil passage 3 led to the primary side of the inching valve 2 and an oil passage opening position for opening the oil passage 3. An on-off valve 4 is provided, a spring 5 displaces and urges the oil passage on-off valve 4 in the direction of the oil passage cutoff position, and a pressing member 6 that displaces the oil passage opening/closing valve 4 to the oil passage opening position in conjunction with the pressure reducing operation of the inching valve 2.
and a hydraulic oil passage for applying the hydraulic pressure of the oil passage 3 to the oil passage opening/closing valve 4 from the opposite side of the biasing direction by the spring 5 to hold the opening/closing valve 4 in the oil passage open position. 7 is characterized in that the hydraulic oil passage 7 is arranged so that the oil passage opening/closing valve 4 shuts off the oil passage at the oil passage blocking position and opens it at the oil passage opening position of the oil passage opening/closing valve 4. Actuation control device. 2. The operation control device according to claim 1, wherein the inching valve 2 is configured to drain hydraulic pressure when the inching valve 2 is operated to its maximum displacement in the pressure reduction direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989061158U JPH088355Y2 (en) | 1989-05-25 | 1989-05-25 | Control device for hydraulic clutch of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989061158U JPH088355Y2 (en) | 1989-05-25 | 1989-05-25 | Control device for hydraulic clutch of vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03330U true JPH03330U (en) | 1991-01-07 |
| JPH088355Y2 JPH088355Y2 (en) | 1996-03-06 |
Family
ID=31589160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989061158U Expired - Lifetime JPH088355Y2 (en) | 1989-05-25 | 1989-05-25 | Control device for hydraulic clutch of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH088355Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49114353U (en) * | 1973-02-02 | 1974-09-30 |
-
1989
- 1989-05-25 JP JP1989061158U patent/JPH088355Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49114353U (en) * | 1973-02-02 | 1974-09-30 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH088355Y2 (en) | 1996-03-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |