JPH0278821U - - Google Patents
Info
- Publication number
- JPH0278821U JPH0278821U JP15982688U JP15982688U JPH0278821U JP H0278821 U JPH0278821 U JP H0278821U JP 15982688 U JP15982688 U JP 15982688U JP 15982688 U JP15982688 U JP 15982688U JP H0278821 U JPH0278821 U JP H0278821U
- Authority
- JP
- Japan
- Prior art keywords
- operating
- biasing force
- springs
- valve body
- oil supply
- 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 1
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Description
図面は本考案に係るクラツチ操作用インチング
弁の実施例を示し、第１図は油圧回路図、第２図
は伝動系統図、第３図は前後進切換え装置の断面
図、第４図はインチング弁の断面図、第５図及び
第６図はインチング弁部分の断面図、第７図は弁
体の一部切欠き平面図、第８図はバネ特性及び操
作力変化の説明図、第９図は別実施インチング弁
の断面図である。
１８，１９…油圧ピストン、２０，２１…操作
油室、３２…弁体、３４，３５…スプリング、４
６，４７…受圧部、４８…人為操作具、Ｔ…タン
ク、Ｖ１…圧油供給源、α，β…付勢力変化率。
The drawings show an embodiment of the inching valve for clutch operation according to the present invention, in which Fig. 1 is a hydraulic circuit diagram, Fig. 2 is a transmission system diagram, Fig. 3 is a sectional view of the forward/reverse switching device, and Fig. 4 is an inching valve. 5 and 6 are cross-sectional views of the inching valve portion, FIG. 7 is a partially cutaway plan view of the valve body, FIG. 8 is an explanatory diagram of spring characteristics and changes in operating force, and FIG. The figure is a sectional view of another implementation of the inching valve. 18, 19... Hydraulic piston, 20, 21... Operating oil chamber, 32... Valve body, 34, 35... Spring, 4
6, 47...Pressure receiving part, 48...Human operation tool, T...Tank, V1 ...Pressure oil supply source, α, β...Biasing force change rate.
Claims (1)
の操作油室２０，２１を圧油供給源Ｖ１に接続す
る給油位置、前記操作油室２０，２１をタンクＴ
に接続する排油位置、前記操作油室２０，２１を
前記圧油供給源Ｖ１及び前記タンクＴに対する非
接続状態にする中立位置の夫々にこの中立位置を
挟んで切換え自在な弁体３２を設け、前記油圧ピ
ストン１８，１９をクラツチ入り位置に操作する
圧油が前記弁体３２を前記排油位置に付勢するべ
く作用する受圧部４６，４７を前記弁体３２に備
えさせ、前記弁体３２を前記給油位置に付勢する
スプリング３４，３５を設け、このスプリング３
４，３５の付勢力を変更調節する人為操作具４８
を備えてあるクラツチ操作用インチング弁であつ
て、前記スプリング３４，３５の小付勢力発揮側
での付勢力変化率αが大付勢力発揮側での付勢力
変化率βより小である状態に前記スプリング３４
，３５を形成してあるクラツチ操作用インチング
弁。 Hydraulic pistons 18, 19 for operating the friction clutch
The oil supply position connects the operating oil chambers 20, 21 to the pressure oil supply source V1 , and the operating oil chambers 20, 21 are connected to the tank T.
A valve body 32 that can be freely switched across the neutral position is provided at each of a drain position where the operating oil chambers 20 and 21 are disconnected from the pressure oil supply source V1 and the tank T. The valve body 32 is provided with pressure receiving portions 46 and 47 through which pressure oil for operating the hydraulic pistons 18 and 19 to the clutch engagement position acts to urge the valve body 32 to the oil draining position. Springs 34 and 35 are provided to urge the body 32 to the refueling position, and the springs 3
A human operating tool 48 for changing and adjusting the biasing force of 4 and 35
In the inching valve for clutch operation, the springs 34 and 35 are in a state where the rate of change in biasing force α on the side where the small biasing force is exerted is smaller than the rate of change in the biasing force β on the side where the springs 34 and 35 are exerting the large biasing force. The spring 34
, 35 for clutch operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15982688U JPH0278821U (en) | 1988-12-07 | 1988-12-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15982688U JPH0278821U (en) | 1988-12-07 | 1988-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0278821U true JPH0278821U (en) | 1990-06-18 |
Family
ID=31441367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15982688U Pending JPH0278821U (en) | 1988-12-07 | 1988-12-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0278821U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002295524A (en) * | 2001-03-29 | 2002-10-09 | Komatsu Ltd | Hydraulic clutch controller for inching |
| JP2002295531A (en) * | 2001-03-30 | 2002-10-09 | Komatsu Ltd | Control device of hydraulic clutch for inching |
-
1988
- 1988-12-07 JP JP15982688U patent/JPH0278821U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002295524A (en) * | 2001-03-29 | 2002-10-09 | Komatsu Ltd | Hydraulic clutch controller for inching |
| JP4605686B2 (en) * | 2001-03-29 | 2011-01-05 | 株式会社小松製作所 | Control device for hydraulic clutch for inching |
| JP2002295531A (en) * | 2001-03-30 | 2002-10-09 | Komatsu Ltd | Control device of hydraulic clutch for inching |
| JP4605687B2 (en) * | 2001-03-30 | 2011-01-05 | 株式会社小松製作所 | Control device for hydraulic clutch for inching |