JPH0533375Y2 - - Google Patents
Info
- Publication number
- JPH0533375Y2 JPH0533375Y2 JP1987160311U JP16031187U JPH0533375Y2 JP H0533375 Y2 JPH0533375 Y2 JP H0533375Y2 JP 1987160311 U JP1987160311 U JP 1987160311U JP 16031187 U JP16031187 U JP 16031187U JP H0533375 Y2 JPH0533375 Y2 JP H0533375Y2
- Authority
- JP
- Japan
- Prior art keywords
- continuously variable
- variable transmission
- lever
- speed change
- change operation
- 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.)
- Expired - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 claims description 29
- 230000002706 hydrostatic effect Effects 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 244000025254 Cannabis sativa Species 0.000 description 2
- 230000000881 depressing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は作業機の変速操作構造に関し、詳しく
は、静油圧式の無段変速装置を備えた作業機にお
ける変速操作構造に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a speed change operation structure for a working machine, and more particularly, to a speed change operation structure for a work machine equipped with a hydrostatic continuously variable transmission.
作業機として農用トラクタを例に挙げると、実
開昭56−143119号公報にも示されるように、変速
用のペダルが機体に設けられると共に、このペダ
ルと、静油圧式の無段変速装置とが機械的に連係
され、又、ペダルには操作域を設定する規制具が
作用するように構成されている。
Taking an agricultural tractor as an example of a working machine, as shown in Japanese Utility Model Application Publication No. 56-143119, a pedal for speed change is provided on the machine body, and this pedal and a hydrostatic continuously variable transmission are connected to each other. are mechanically linked, and the pedal is configured so that a regulating device that sets an operating range acts on the pedal.
しかし、前記引例の如く変速域を設定するため
の規制具が変速用のペダルに作用するよう設けら
れていると、このペダルと無段変速装置との連係
の誤差あるいはペダルの取付誤差等を生ずるた
め、無段変速装置に対する正確な変速域を設定す
るためには、機体の組立て時に各々の機体につき
規制具の位置調節を必要とすることになる。
However, if a regulating device for setting the speed change range is provided to act on the speed change pedal as in the above-mentioned example, errors may occur in the connection between this pedal and the continuously variable transmission or in the installation of the pedal. Therefore, in order to set an accurate speed change range for the continuously variable transmission, it is necessary to adjust the position of the restrictor for each aircraft when assembling the aircraft.
本考案の目的は、無段変速装置に対する変速域
を、できるだけ正確に、かつ、手間を掛けずに設
定する操作構造を合理的に構成する点にある。 An object of the present invention is to rationally configure an operation structure for setting a speed change range for a continuously variable transmission as accurately as possible and without requiring much effort.
本考案の特徴は、静油圧式の無段変速装置のト
ラニオン軸に取付けた変速操作用のレバーと、運
転部の変速操作具とを機械的に連係し、無段変速
装置の前進及び後進状態を現出するための前進及
び後進域を含むレバーの変速操作域を、レバーと
の接当によりその前進方向と後進方向の両操作端
を規制する規制具によつて設定するとともに、そ
の規制具を、レバーの前進及び後進側の操作方向
に位置変更可能な状態で無段変速装置に取付けて
変速操作構造を構成してある点にある。
The feature of this invention is that the lever for speed change operation attached to the trunnion shaft of the hydrostatic continuously variable transmission is mechanically linked with the speed change operation tool of the driving part, and the forward and reverse movement of the continuously variable transmission is controlled. The gear shift operation range of the lever, including the forward and reverse ranges, for achieving is attached to the continuously variable transmission in a state in which the position of the lever can be changed in the forward and reverse operating directions to constitute a speed change operation structure.
上記特徴構成によれば、図１、図２に示すよう
に、規制具１９が無段変速装置８に対して取付け
られるので、無段変速装置８の製作時に規制具１
９の位置を決めることによつて、無段変速装置８
に変速操作域Ｓを、機体の組立て以前に設定でき
ることになる。しかも、レバー１７と規制具１９
とが共に無段変速装置８に取付けられ、相対的な
位置合わせ精度が良好である。
According to the above characteristic configuration, as shown in FIGS. 1 and 2, since the restricting tool 19 is attached to the continuously variable transmission 8, the restricting tool 19 is attached to the continuously variable transmission 8 when the continuously variable transmission 8 is manufactured.
By determining the position of 9, the continuously variable transmission 8
This means that the speed change operation range S can be set before the aircraft is assembled. Moreover, the lever 17 and the restrictor 19
Both are attached to the continuously variable transmission device 8, and the relative positioning accuracy is good.
又、規制具をレバーの操作方向に位置変更可能
であるから、規制具を前進側にずらして路上走行
に適した前進速度の高速化や、規制具を後進側に
ずらして芝刈り等の後進状態も多く使う作業走行
に適した広い後進操作域を得ることができように
なる。 In addition, the position of the restrictor can be changed in the direction in which the lever is operated, so you can move the restrictor to the forward side to increase the forward speed suitable for driving on the road, or move the restrictor to the reverse side to increase the forward speed suitable for driving on the road. It becomes possible to obtain a wide reverse operation range suitable for work driving under many conditions.
その結果、機械的な変速操作系の連係に誤差を
生じていても、機体の組立て時等での調節の手間
を要することなく、正確に変速操作域の設定がで
きるようになつた。
As a result, even if there is an error in the coordination of the mechanical shift operation system, it is now possible to accurately set the shift operation range without the need for adjustment during assembly of the aircraft.
又、規制具の位置調節構造により、使用形態に
応じた変速操作域の設定が行える利点もある。 Another advantage is that the position adjustment structure of the restrictor allows the speed change operation range to be set according to the type of use.
以下、本考案の実施例を図面に基づいて説明す
る。
Hereinafter, embodiments of the present invention will be described based on the drawings.
第３図に示すように、左右一対の前車輪１及び
後車輪２を備えた機体の前部にエンジン３を設
け、後部に運転座席４を設けると共に、前後車輪
１，２の中間にモアー５を設け、又、機体の後端
に該モアー５からの刈芝がダクト６を介して送り
込まれる集草器７を取付けて、作業機の一例とし
ての芝刈機が構成されている。 As shown in FIG. 3, an engine 3 is provided at the front of the aircraft body, which is equipped with a pair of left and right front wheels 1 and rear wheels 2, a driver's seat 4 is provided at the rear, and a mower 5 is provided between the front and rear wheels 1, 2. A lawn mower as an example of a working machine is constructed by attaching a grass collector 7 to the rear end of the machine body through which the grass clippings from the mower 5 are fed through a duct 6.
第１図及び第３図に示すように機体の後部には
後車輪２に動力を伝えるための静油圧式の無段変
速装置８と伝動ケース９とが連結状態で設けら
れ、この無段変速装置８とエンジン３との間、及
び、前記モアー５とエンジン３との間夫々にはベ
ルト式の伝動系が設けられている。 As shown in FIGS. 1 and 3, a hydrostatic continuously variable transmission 8 and a transmission case 9 for transmitting power to the rear wheels 2 are connected to each other at the rear of the aircraft. Belt-type transmission systems are provided between the device 8 and the engine 3 and between the mower 5 and the engine 3, respectively.
即ち、エンジン３は出力軸３ａを下方に向けて
設けられると共に、この出力軸３ａには走行系に
対する第１出力プーリ１０と、モアー５に対する
第２出力プーリ１１とが取付けられ、第１出力プ
ーリ１０からの動力は第１ベルト１２を介して無
段変速装置８の入力プーリ１３に伝えられ、又、
第２出力プーリ１１からの動力は第２ベルト１４
を介してモアー５の入力プーリ１５に伝えられ
る。 That is, the engine 3 is provided with an output shaft 3a facing downward, and a first output pulley 10 for the traveling system and a second output pulley 11 for the mower 5 are attached to the output shaft 3a. The power from 10 is transmitted to the input pulley 13 of the continuously variable transmission 8 via the first belt 12, and
The power from the second output pulley 11 is transferred to the second belt 14
The signal is transmitted to the input pulley 15 of the mower 5 via the input pulley 15 of the mower 5.
又、機体のステツプの右側にはペダル型の変速
操作具１６が設けられ、この変速操作具１６と無
段変速装置８に設けられた変速操作用のレバー１
７との間に操作ロツド１８が介装されることで、
変速操作具１６の前方への踏込み操作で機体を前
進させ、後方への踏込み操作で機体を後進させる
ようになつている。 Further, a pedal-type speed change operation tool 16 is provided on the right side of the step of the aircraft, and this speed change operation tool 16 and a lever 1 for speed change operation provided on the continuously variable transmission 8 are connected to each other.
By interposing the operating rod 18 between the
The forward depressing operation of the speed change operating tool 16 causes the aircraft to move forward, and the backward depressing operation causes the aircraft to move backward.
更に、第１図及び第２図に示すように、この変
速操作系では前記レバー１７の操作域Ｓを、この
レバー１７との接当によつて設定する規制具１９
が無段変速装置８に取付けられることが変速域Ｓ
を中立点Ｎを基準にして正確に設定するようにな
つている。 Furthermore, as shown in FIGS. 1 and 2, this speed change operation system includes a restrictor 19 that sets the operating range S of the lever 17 by contacting the lever 17.
is attached to the continuously variable transmission 8 in the transmission range S.
is set accurately with reference to the neutral point N.
つまり、無段変速装置８は可変容量型の油圧ポ
ンプ８ａと油圧モータ８ｂとを内蔵して成ると共
に、油圧ポンプ８ａのトラニオン軸２０に対して
前記レバー１７が取付けられ、無段変速装置８の
外壁部に突出形成した２つの支持部８ｃ，８ｃに
対して「コ」字状の前記規制具１９をボルト２
１，２１で締付け固定することで、この規制具１
９の対向する内縁部１９ａ，１９ａの接当で変速
操作域Ｓが設定されるのである。 That is, the continuously variable transmission 8 includes a variable displacement hydraulic pump 8a and a hydraulic motor 8b, and the lever 17 is attached to the trunnion shaft 20 of the hydraulic pump 8a. The U-shaped restrictor 19 is attached to the bolt 2 with respect to the two supporting portions 8c, 8c formed protruding from the outer wall.
By tightening and fixing with 1 and 21, this regulating tool 1
The shift operation range S is set by the contact between the opposing inner edges 19a, 19a of the gear shifter 9.
つまり、ボルト２１，２１と変速装置側の長孔
とによるスライド可能な止着構造により、規制具
１９を、レバー１７の前進及び後進側の操作方向
に位置変更可能な状態で無段変速装置８に取付け
られてあり、変速操作域Ｓを前進側及び後進側に
ずらして設定することが可能である。 In other words, due to the slidable fastening structure formed by the bolts 21, 21 and the elongated holes on the transmission side, the continuously variable transmission 8 can move the restrictor 19 in a state where the position can be changed in the forward and reverse operating directions of the lever 17. The gear shift operation range S can be set to be shifted to the forward and reverse sides.
尚、この無段変速装置８には前記変速操作具１
６の非操作時にレバー１７を中立位置に復帰させ
るため、カム体２２、ロール２３、アーム２４、
バネ２５で成る機構、及び、冷却用のフアン２６
が設けられ、又、前記伝動ケース９の側面には後
車輪２に対する出力軸２７が突出形成されてい
る。 Incidentally, this continuously variable transmission device 8 is equipped with the speed change operation tool 1.
In order to return the lever 17 to the neutral position when the lever 6 is not operated, a cam body 22, a roll 23, an arm 24,
A mechanism consisting of a spring 25 and a cooling fan 26
Further, an output shaft 27 for the rear wheel 2 is formed protruding from the side surface of the transmission case 9.
本考案は上記実施例以外に例えば、規制具を２
つの部材で構成する等、構造、形状は様々に実施
でき、又、農用トラクタ、運搬者等に本考案を適
用することも可能である。
In addition to the above-mentioned embodiments, the present invention also includes, for example, two restricting devices.
The present invention can be implemented in various structures and shapes, such as being composed of two members, and it is also possible to apply the present invention to agricultural tractors, transporters, etc.
尚、実用新案登録請求の範囲の項に図面との対
照を便利にする為に符号を記すが、該記入により
本考案は添付図面の構造に限定されるものではな
い。 Incidentally, although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.
図面は本考案に係る作業機の変速操作構造の実
施例を示し、第１図は該操作構造の概略側面図、
第２図は規制具の取付構造を示す平面図、第３図
は芝刈機の全体側面図である。
８……無段変速装置、１６……変速操作具、１
７……レバー、１９……規制具、２０……トラニ
オン軸、Ｓ……操作域。
The drawings show an embodiment of a speed change operation structure for a working machine according to the present invention, and FIG. 1 is a schematic side view of the operation structure;
FIG. 2 is a plan view showing the mounting structure of the regulating device, and FIG. 3 is an overall side view of the lawn mower. 8... Continuously variable transmission device, 16... Speed change operation tool, 1
7...Lever, 19...Restrictor, 20...Trunion shaft, S...Operation range.
Claims (1)
に取付けた変速操作用のレバー１７と、運転部の
変速操作具１６とを機械的に連係し、前記無段変
速装置８の前進及び後進状態を現出するための前
進及び後進域を含んだ前記レバー１７の変速操作
域Ｓを、該レバー１７との接当によりその前進方
向と後進方向の両操作端を規制する規制具１９に
よつて設定するとともに、前記規制具１９を、前
記レバー１７の前進及び後進側の操作方向に位置
変更可能な状態で前記無段変速装置８に取付けて
ある作業機の変速操作構造。 Trunnion shaft 20 of hydrostatic continuously variable transmission 8
A lever 17 for gear change operation attached to the drive unit is mechanically linked with a gear change operation tool 16 of the driving section, and includes a forward and reverse range for expressing the forward and reverse states of the continuously variable transmission 8. The speed change operation range S of the lever 17 is set by a restriction tool 19 that restricts both the forward and reverse operation ends of the lever 17 by contact with the lever 17. A speed change operation structure for a working machine that is attached to the continuously variable transmission 8 in a state that the position can be changed in the forward and reverse operation directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987160311U JPH0533375Y2 (en) | 1987-10-20 | 1987-10-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987160311U JPH0533375Y2 (en) | 1987-10-20 | 1987-10-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0163538U JPH0163538U (en) | 1989-04-24 |
| JPH0533375Y2 true JPH0533375Y2 (en) | 1993-08-25 |
Family
ID=31442269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987160311U Expired - Lifetime JPH0533375Y2 (en) | 1987-10-20 | 1987-10-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0533375Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS604406B2 (en) * | 1980-03-28 | 1985-02-04 | 株式会社リコー | Instrumental adjustment device for flowmeter |
| JPS61232923A (en) * | 1985-04-08 | 1986-10-17 | Iseki & Co Ltd | Stepless speed change operating device |
-
1987
- 1987-10-20 JP JP1987160311U patent/JPH0533375Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS604406B2 (en) * | 1980-03-28 | 1985-02-04 | 株式会社リコー | Instrumental adjustment device for flowmeter |
| JPS61232923A (en) * | 1985-04-08 | 1986-10-17 | Iseki & Co Ltd | Stepless speed change operating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0163538U (en) | 1989-04-24 |
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