JPS6281748U - - Google Patents
Info
- Publication number
- JPS6281748U JPS6281748U JP17145885U JP17145885U JPS6281748U JP S6281748 U JPS6281748 U JP S6281748U JP 17145885 U JP17145885 U JP 17145885U JP 17145885 U JP17145885 U JP 17145885U JP S6281748 U JPS6281748 U JP S6281748U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- hydraulic
- hydraulic clutch
- spring
- clutch
- 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
- 239000012530 fluid Substances 0.000 claims 2
- 239000010720 hydraulic oil Substances 0.000 claims 2
- 230000001105 regulatory effect Effects 0.000 claims 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000001276 controlling effect Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
- Gear-Shifting Mechanisms (AREA)
Description
第１図乃至第７図は本考案の一実施例を示し、
第１図は前後進切換弁の断面図、第２図は第１図
の―矢視図、第３図はトラクタの一部破断側
面図、第４図乃至第６図は動作説明図、第７図は
昇圧特性図である。
１５……前後進切換弁、１６……前後進切換装
置、２２……圧力調整弁、２４……弁本体、３２
……ピストン、３３，３４……バネ、３７……第
１ピストン、３８……第２ピストン、３９……油
路。
1 to 7 show an embodiment of the present invention,
Fig. 1 is a sectional view of the forward/reverse switching valve, Fig. 2 is a view taken along the - arrow in Fig. 1, Fig. 3 is a partially cutaway side view of the tractor, Figs. FIG. 7 is a voltage boosting characteristic diagram. 15... Forward/forward switching valve, 16... Forward/forward switching device, 22... Pressure adjustment valve, 24... Valve body, 32
... Piston, 33, 34 ... Spring, 37 ... First piston, 38 ... Second piston, 39 ... Oil passage.
Claims (1)
を備え、油圧クラツチの接続時に、圧力調整弁の
弁本体内のピストンをバネに抗して摺動させるこ
とにより、油圧クラツチに供給する作動油を所定
圧力まで上昇させるようにしたものにおいて、油
圧クラツチへの作動油の供給開始と共にバネを圧
縮する第１ピストンと、この第１ピストンに摺動
自在に嵌合されかつ該第１ピストンに対してバネ
圧縮方向に係合可能とされた第２ピストンとを備
え、作動油を油圧クラツチの完全接続前の圧力ま
で上昇させるように第１ピストンが摺動した後、
作動油を第２ピストン側に供給する油路を設けた
ことを特徴とする車輛の発進制御装置。 The hydraulic control system of the hydraulic clutch in the travel system is equipped with a pressure regulating valve, and when the hydraulic clutch is connected, the piston in the valve body of the pressure regulating valve slides against a spring, thereby controlling the hydraulic fluid supplied to the hydraulic clutch. A first piston that compresses a spring when the supply of hydraulic oil to the hydraulic clutch starts, and a first piston that is slidably fitted to the first piston and is connected to the first piston. a second piston that is engageable in the spring compression direction, and after the first piston has slid to raise the hydraulic fluid to a pressure before the hydraulic clutch is fully engaged;
A vehicle start control device comprising an oil passage for supplying hydraulic oil to a second piston side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985171458U JPH0638217Y2 (en) | 1985-11-06 | 1985-11-06 | Pressure control valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985171458U JPH0638217Y2 (en) | 1985-11-06 | 1985-11-06 | Pressure control valve device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6281748U true JPS6281748U (en) | 1987-05-25 |
| JPH0638217Y2 JPH0638217Y2 (en) | 1994-10-05 |
Family
ID=31107098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985171458U Expired - Lifetime JPH0638217Y2 (en) | 1985-11-06 | 1985-11-06 | Pressure control valve device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0638217Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52127553A (en) * | 1976-04-20 | 1977-10-26 | Aisin Seiki Co Ltd | Modulator valve device |
-
1985
- 1985-11-06 JP JP1985171458U patent/JPH0638217Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52127553A (en) * | 1976-04-20 | 1977-10-26 | Aisin Seiki Co Ltd | Modulator valve device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0638217Y2 (en) | 1994-10-05 |