JPH0478029U - - Google Patents
Info
- Publication number
- JPH0478029U JPH0478029U JP1990121943U JP12194390U JPH0478029U JP H0478029 U JPH0478029 U JP H0478029U JP 1990121943 U JP1990121943 U JP 1990121943U JP 12194390 U JP12194390 U JP 12194390U JP H0478029 U JPH0478029 U JP H0478029U
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- operating device
- valve operating
- cylindrical portion
- engagement
- 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
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Description
第１図は本考案の第１実施例にかかるアクセル
制御装置を備えた作業車の一部平面図、第２図は
第１図の正面図、第３図は第１図のＡ部の分解斜
視図、第４図は第１図のＢ−Ｂ断面図、第５図は
第１図のＡ部拡大図、第６図は第５図のＣ−Ｃ断
面図、第７図は第６図のＤ−Ｄ断面図、第８図は
第５図の状態変化図、第９図は第８図のＥ−Ｅ断
面図、第１０図及び第１１図はそれぞれ第１実施
例のアクセル制御装置の作用を示すグラフ、第１
２図は本考案の第２実施例にかかるアクセル制御
装置の一部分解斜視図、第１３図は第１２図のア
クセル制御装置の組立状態における縦断面図、第
１４図は本考案の第３実施例にかかるアクセル制
御装置の一部断面図、第１５図及び第１６図はそ
れぞれ第１４図の状態変化図、第１７図は第３実
施例のアクセル制御装置の作用を示すグラフ、第
１８図及び第１９図はそれぞれ従来のアクセル制
御装置の作用を示すグラフである。
１……エンジン、２……アクセル操作装置、４
……バルブ操作装置、５……連動機構、６……進
退操作装置、１２……油圧ポンプ、１３……油圧
アクチユエータ、１４……切換バルブ、２１……
アクセル操作リンク、２２……筒部、３２……揺
動部材、４１……バルブ操作レバー、４９……軸
、５１……係合部、５２……係合受部、５３……
傾斜係合面、６０……コントロールレバー、８１
……係合部、８２……係合受部、８３……傾斜係
合面。
Fig. 1 is a partial plan view of a working vehicle equipped with an accelerator control device according to a first embodiment of the present invention, Fig. 2 is a front view of Fig. 1, and Fig. 3 is an exploded view of section A in Fig. 1. A perspective view, FIG. 4 is a sectional view taken along line B-B in FIG. 1, FIG. 5 is an enlarged view of section A in FIG. 1, FIG. FIG. 8 is a state change diagram of FIG. 5, FIG. 9 is a sectional view of E-E of FIG. 8, and FIGS. 10 and 11 are accelerator control of the first embodiment. Graph showing the action of the device, 1st
2 is a partially exploded perspective view of an accelerator control device according to a second embodiment of the present invention, FIG. 13 is a vertical sectional view of the accelerator control device of FIG. 12 in an assembled state, and FIG. 14 is a third embodiment of the present invention. A partial sectional view of the accelerator control device according to the example, FIG. 15 and FIG. 16 are state change diagrams of FIG. 14, respectively, FIG. 17 is a graph showing the action of the accelerator control device of the third embodiment, and FIG. 18 and FIG. 19 are graphs showing the effects of the conventional accelerator control device. 1...Engine, 2...Accelerator operating device, 4
...Valve operating device, 5... Interlocking mechanism, 6... Advance/retreat operating device, 12... Hydraulic pump, 13... Hydraulic actuator, 14... Switching valve, 21...
Accelerator operation link, 22...Cylinder part, 32...Swinging member, 41...Valve operation lever, 49...Shaft, 51...Engagement part, 52...Engagement receiving part, 53...
Inclined engagement surface, 60...Control lever, 81
...Engagement portion, 82...Engagement receiving portion, 83...Slanted engagement surface.
Claims (1)
ル操作装置２と、エンジン１によつて駆動される
油圧ポンプ１２と、油圧ポンプ１２からの吐出油
を受けて作動する油圧アクチユエータ１３と、油
圧アクチユエータ１３への吐出油の供給を切換え
る切換バルブ１４と、切換バルブ１４を切換操作
するバルブ操作装置４と、バルブ操作装置４の所
定の操作領域において該バルブ操作装置４と前記
アクセル操作装置２とを連動させる連動機構５と
を備えた作業車において、 前記連動機構５は、バルブ操作装置４のバルブ
操作レバー４１の操作によつて回動せしめられる
軸４９と、該軸４９の外側に回動及び軸線方向に
進退自在に嵌挿された筒部２２を有し且つ該筒部
２２が回動することによつてエンジン回転数を可
変ならしめるアクセル操作リンク２１とを備え、
しかも該軸４９が回動したときに相互に係合して
筒部２２を軸４９と伴回りさせるように作用する
係合部５１，８１と係合受部５２，８２のうちの
係合部５１，８１を前記軸４９側に、係合受部５
２，８２を前記筒部２２側にそれぞれ設け、さら
に前記係合部５１，８１と係合受部５２，８２の
いずれか一方に、前記軸４９に対する筒部２２の
軸線方向進退変位量に応じて軸４９が筒部２２に
対して回動したときの前記係合部５１，８１と係
合受部５２，８２との係合位置を軸４９の周方向
に順次変化せしめ得る如くした傾斜係合面５３，
８３を設けて構成するとともに、 前記アクセル操作リンク２１の前記筒部２２を
前記軸４９に対しその軸線方向に進退変位せしめ
る進退操作装置６を備えている、 ことを特徴とする作業車のアクセル制御装置。[Claims for Utility Model Registration] An accelerator operating device 2 that controls the increase and deceleration of the rotation speed of the engine 1, a hydraulic pump 12 driven by the engine 1, and an actuator that receives oil discharged from the hydraulic pump 12. A hydraulic actuator 13, a switching valve 14 that switches the supply of discharge oil to the hydraulic actuator 13, a valve operating device 4 that switches the switching valve 14, and a valve operating device 4 in a predetermined operating area of the valve operating device 4. In a work vehicle equipped with an interlocking mechanism 5 that interlocks the accelerator operating device 2, the interlocking mechanism 5 includes a shaft 49 that is rotated by operating the valve operating lever 41 of the valve operating device 4, and a shaft 49 that is rotated by operating the valve operating lever 41 of the valve operating device 4. The accelerator operation link 21 has a cylindrical part 22 fitted on the outside of the cylindrical part 49 so as to be rotatable and can move forward and backward in the axial direction. ,
Furthermore, the engaging portions of the engaging portions 51 and 81 and the engaging receiving portions 52 and 82 engage with each other and act to cause the cylindrical portion 22 to rotate with the shaft 49 when the shaft 49 rotates. 51 and 81 on the shaft 49 side, and the engagement receiving portion 5
2 and 82 are respectively provided on the cylindrical portion 22 side, and furthermore, one of the engaging portions 51 and 81 and the engaging receiving portions 52 and 82 is provided with a screw according to the amount of axial movement of the cylindrical portion 22 with respect to the shaft 49. The inclined engagement can sequentially change the engagement positions of the engagement portions 51, 81 and the engagement receiving portions 52, 82 in the circumferential direction of the shaft 49 when the shaft 49 rotates with respect to the cylindrical portion 22. Aimen 53,
83, and an advancement/retraction operation device 6 for moving the cylindrical portion 22 of the accelerator operation link 21 forward or backward relative to the shaft 49 in the axial direction thereof. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990121943U JP2528724Y2 (en) | 1990-11-20 | 1990-11-20 | Work vehicle accelerator control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990121943U JP2528724Y2 (en) | 1990-11-20 | 1990-11-20 | Work vehicle accelerator control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0478029U true JPH0478029U (en) | 1992-07-08 |
| JP2528724Y2 JP2528724Y2 (en) | 1997-03-12 |
Family
ID=31869762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990121943U Expired - Lifetime JP2528724Y2 (en) | 1990-11-20 | 1990-11-20 | Work vehicle accelerator control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2528724Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6202744B2 (en) * | 2014-01-15 | 2017-09-27 | 株式会社タダノ | Hydraulic actuator speed control device |
-
1990
- 1990-11-20 JP JP1990121943U patent/JP2528724Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2528724Y2 (en) | 1997-03-12 |
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