JPH0228028A - Transmission operation device of tractor and the like - Google Patents
Transmission operation device of tractor and the likeInfo
- Publication number
- JPH0228028A JPH0228028A JP17667388A JP17667388A JPH0228028A JP H0228028 A JPH0228028 A JP H0228028A JP 17667388 A JP17667388 A JP 17667388A JP 17667388 A JP17667388 A JP 17667388A JP H0228028 A JPH0228028 A JP H0228028A
- Authority
- JP
- Japan
- Prior art keywords
- pedal
- neutral
- brake
- arm
- brake pedal
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 30
- 230000007935 neutral effect Effects 0.000 claims abstract description 30
- 230000000881 depressing effect Effects 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、トラクタ等の変速操作装置に関するもので
、その他の移動農機に利用できる。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a speed change operating device for tractors and the like, and can be used for other mobile agricultural machinery.
従来の技術、および発明が解決しようとする課題
油圧無段変速装置を無段変速操作して走行伝動する走行
操作形態においては、変速装置の変速制御軸を、中立位
置から前進位置側、又は後進位置側へ回動して走行変速
を順次高速に行うが、この高速位置に変速操作している
とき急ブレーキをかけると、油圧無段変速装置は直ちに
中立位置へは戻らないで、遅れて減速されながら中立位
置へ戻るために、急停止し難い。Prior Art and Problems to be Solved by the Invention In a driving operation mode in which a hydraulic continuously variable transmission is operated to continuously variable speed to transmit driving, the speed change control shaft of the transmission is moved from a neutral position to a forward position or to a reverse position. The hydraulic continuously variable transmission does not immediately return to the neutral position, but instead decelerates after a delay. It is difficult to stop suddenly because the vehicle returns to the neutral position while being stopped.
課題を解決するための手段
この発明は、油圧無段変速装置(1)の変速制御軸(2
)を、走行ペダル(3)の操作で変速連動すると共に、
ブレーキペダル(4)の操作で中立位置へ強制的に戻し
操作可能に設けてなるトラクタ等の変速操作装置の構成
とする。Means for Solving the Problems This invention provides a shift control shaft (2) of a hydraulic continuously variable transmission (1).
) is linked to gear change by operating the travel pedal (3), and
The gear shift operating device for a tractor or the like is configured such that it can be forcibly returned to the neutral position by operating the brake pedal (4).
発明の作用、および効果
走行ペダル(3)から足を解放しているときは、変速制
御軸(2)は中立位置にあって走行伝動は行われない。Functions and Effects of the Invention When the foot is released from the travel pedal (3), the speed change control shaft (2) is in the neutral position and no travel transmission is performed.
走行ペダル(3)を前進側へ踏込むと、この踏込量に応
じて変速制御軸(2)が回動されて、無段変速伝動され
る。このような走行操作中に急停車するためにブレーキ
ペダルで4)を踏むと、これによって変速制御軸(2)
が変速位置から中立位置へ強制的に戻される。このため
にブレーキペダル(4)による走行制動と共に、油圧無
段変速装置(1)が急減速されて中立位置になり、伝動
を行わない。When the travel pedal (3) is depressed in the forward direction, the shift control shaft (2) is rotated in accordance with the amount of depression, and continuously variable transmission is performed. If you press brake pedal 4) to make a sudden stop during such driving operations, this will cause the shift control shaft (2) to
is forcibly returned from the gear shift position to the neutral position. For this reason, when the brake pedal (4) is used to brake the vehicle, the hydraulic continuously variable transmission (1) is suddenly decelerated to a neutral position and no transmission is performed.
このようにブレーキペダル(4)の踏込によって。In this way, by depressing the brake pedal (4).
変速伝動中の油圧無段変速装置+11の変速位置を強制
的に中立位置に戻すために、ブレーキと共に直ちに伝動
中立にして、伝動装置に無理を働かせず、急停車を円滑
にしかもプレーキベタル(4)の操作だけで簡単、迅速
に行うことができる。In order to forcibly return the shift position of the hydraulic continuously variable transmission +11 to the neutral position during gear transmission, the transmission is immediately set to neutral together with the brake, so that sudden stops can be made smoothly without exerting force on the transmission, and the brake level (4) is It can be done easily and quickly with just one operation.
実施例
なお、回倒において、油圧無段変速装置は、−可変容量
形ポンプと固定容量形モータとを有し、変速制御軸(2
)の回動によって固定容量形モータ及び出力軸の変速伝
動を行うもので、この変速制御軸(2)の中立位置(N
)においては変速伝動は行われず、これより前進位!
(F)に回動操作するときは順次前進高速に増速され、
又中立位置(N)へ戻すことによって減速し停止するに
至る。又、中立位! (N)から後進位置(R)に回動
操作するときも同様にして後進伝動走行される。この油
圧無段変速装置(1)の出力軸から伝動ケース(5)内
の副変速装置や操向クラッチ、及び操向ブレーキ(6)
等を介して左右の車輪軸へ伝動構成し、ブレーキペダル
(4)を踏込むことにより該左右の操向ブレーキ(6)
を制動する構成としている。なお、このブレーキ(6)
は左右両車軸軸の付回りを単一で同時制動する構成でも
よい。Embodiment In addition, in rotation, the hydraulic continuously variable transmission has a variable displacement pump and a fixed displacement motor, and a variable displacement control shaft (2
) is used to transmit the speed change of the fixed displacement motor and output shaft, and the neutral position (N
), no gear transmission is performed, and the forward position is higher than this!
When performing the rotation operation in (F), the speed is increased sequentially to a forward high speed,
Moreover, by returning to the neutral position (N), the speed is decelerated and it comes to a stop. Also, neutral position! When the vehicle is rotated from (N) to the reverse position (R), reverse power transmission travel is carried out in the same manner. The output shaft of this hydraulic continuously variable transmission (1) is connected to the auxiliary transmission, steering clutch, and steering brake (6) in the transmission case (5).
The transmission is configured to be transmitted to the left and right wheel axles via the brake pedal (4), and the left and right steering brakes (6) are activated by depressing the brake pedal (4).
It is configured to brake the In addition, this brake (6)
Alternatively, the rotation of both the left and right axles may be braked simultaneously.
変速制御軸(2)の制御アー(7)には、上端縁にV字
形のカム縁(8)と、このカム縁(8)に押圧するロー
ル(9)を有する中立復帰アーム(1〔と、この中立復
帰アームfiGを弾発するばね(+11と等によって、
中立復帰装置を設けている。操縦席前のフロア(功には
、走行ペダル(3)を前後方向へ回動自在に枢支(13
シ、この走行ペダル(3)と該制御アーム(7)との間
をロッド(141で連結している。走行ペダル(3)を
前側へ踏込むことにより前進位@(F)へ変速し、後側
へ踏込むことにより後進位[(R)へ変速する。又、走
行ペダル(3)から踏込操作を解放すると中立位置へ復
帰する。The control arm (7) of the speed change control shaft (2) has a neutral return arm (1) having a V-shaped cam edge (8) on its upper edge and a roll (9) that presses against this cam edge (8). , the spring that springs this neutral return arm fiG (by +11, etc.,
A neutral return device is provided. The floor in front of the cockpit (on the floor, the driving pedal (3) is pivoted so that it can be rotated in the front and back direction
The travel pedal (3) and the control arm (7) are connected by a rod (141).By depressing the travel pedal (3) to the front, the gear is shifted to the forward position @ (F), By depressing the pedal to the rear, the gear changes to the reverse position [(R). Also, when the driving pedal (3) is released, it returns to the neutral position.
又、枢支部(131にはブレーキペダル(4)が設けら
れ、このブレーキペダル(4)を踏むことによりロッド
(19゜ばね(旧等を介してブレーキ(6)のブレーキ
アーム(1カを回動し、走行装置の車輪軸を制動するこ
とができる。このブレーキペダル(4)のロッド(19
を中立復帰プレートC11に連動し、ブレーキペダル【
4)の踏込によってこの中立復帰プレート(旧を回動し
て、該制御アーム(7)を任意の変速位置(F)(R)
から中立位置(N)へ復帰できる構成としている。この
中立復帰プレート(18は、該ブレーキペダル(4)の
枢支部(13と同様にフレーム0つに枢支G!l L、
、このプレート(lυの係合孔シ1)にロッドfls
lの係合ピンQ3を係合させている6又、この中立復帰
プレート(11の先端部には、該枢支部(2II+回り
の案内溝(社)を形成し。In addition, a brake pedal (4) is provided on the pivot portion (131), and by stepping on this brake pedal (4), the brake arm (1 arm) of the brake (6) is rotated via a rod (19° spring, etc.). The rod (19) of this brake pedal (4) can brake the wheel axle of the traveling device.
is linked to the neutral return plate C11, and the brake pedal [
4), the neutral return plate (old) is rotated to move the control arm (7) to any shift position (F) (R).
The structure is such that it can return from the position to the neutral position (N). This neutral return plate (18 is pivoted to the frame 0 like the pivot part (13) of the brake pedal (4) G!l L,
, insert the rod fls into this plate (engagement hole 1 of lυ)
A guide groove around the pivot portion (2II+) is formed at the tip of the six-pronged neutral return plate (11) that engages the engagement pin Q3 of I.
この案内溝−の開口部には、該枢支部ffl側に後進側
復帰縁圓を形成し、これと反対側に前進側復帰afsi
を形成し、この中立復帰プレート+I1mの回動によっ
て制御アーム(7)の復帰ピンr2日を係合して案内溝
−へ案内し、いずれかの変速位置にある変速制御アーム
(7)を中立位ffi (N)へ回動する。このときの
ロッド(19はブレーキ(6)を制動する位置にある。At the opening of this guide groove, a reverse return side return edge circle is formed on the side of the pivot part ffl, and a forward side return afsi is formed on the opposite side.
The rotation of the neutral return plate +I1m engages the return pin r2 of the control arm (7) and guides it to the guide groove, thereby shifting the shift control arm (7) at any shift position to neutral. Rotate to position ffi (N). At this time, the rod (19) is in a position to apply the brake (6).
(5)はブレーキペダル(4)に設けたパーキングレバ
ーで、ラック部をフロア+17J下の係止部+21に係
合することによって、ブレーキペダル(4)をブレーキ
位置に固定するパーキングブレーキとすることができる
。(5) is a parking lever provided on the brake pedal (4), and by engaging the rack part with the locking part +21 below the floor +17J, the parking brake fixes the brake pedal (4) at the brake position. I can do it.
儲は油圧無段変速装置(1)の入力軸、OIはこの入力
軸(21に設けたファンで、これら油圧無段変速装置(
1)及び伝動ケース(5)等を冷却するものである。The mark is the input shaft of the hydraulic continuously variable transmission (1), and the OI is the fan installed on this input shaft (21).
1), the transmission case (5), etc.
【図面の簡単な説明】
図はこの発明の一実施例を示すもので、第1図は一部の
側面図、第2図は平面図、第3図は一部の拡大作用側面
図である。
図中、符号(1)は油圧無段変速装置、(2)は変速制
御軸、(3)は走行ペダル、(4)はプレーキベタル、
(5)は伝動ケース、(6)はブレーキ、(7)は制御
アーム、fllは中立復帰プレートを示す。[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show one embodiment of the present invention, and FIG. 1 is a partial side view, FIG. 2 is a plan view, and FIG. 3 is a partial enlarged side view. . In the figure, (1) is a hydraulic continuously variable transmission, (2) is a shift control shaft, (3) is a travel pedal, (4) is a brake pedal,
(5) is a transmission case, (6) is a brake, (7) is a control arm, and fll is a neutral return plate.
Claims (1)
ペダル(3)の操作で変速連動すると共に、ブレーキペ
ダル(4)の操作で中立位置へ強制的に戻し操作可能に
設けてなるトラクタ等の変速操作装置。The gear change control shaft (2) of the hydraulic continuously variable transmission (1) is provided so as to be operable to change gears by operating a travel pedal (3) and forcibly return it to a neutral position by operating a brake pedal (4). A speed change operation device for tractors, etc.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17667388A JPH0228028A (en) | 1988-07-14 | 1988-07-14 | Transmission operation device of tractor and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17667388A JPH0228028A (en) | 1988-07-14 | 1988-07-14 | Transmission operation device of tractor and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0228028A true JPH0228028A (en) | 1990-01-30 |
Family
ID=16017721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17667388A Pending JPH0228028A (en) | 1988-07-14 | 1988-07-14 | Transmission operation device of tractor and the like |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0228028A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0455421U (en) * | 1990-09-20 | 1992-05-12 | ||
JPH04123724U (en) * | 1991-04-23 | 1992-11-10 | 株式会社クボタ | Gear shift operation structure |
US5323890A (en) * | 1992-04-09 | 1994-06-28 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Transmission assembly for working vehicles |
JPH06269146A (en) * | 1992-12-28 | 1994-09-22 | Ckd Corp | Small size motor having reduction mechanism |
JP2002145026A (en) * | 2000-11-10 | 2002-05-22 | Iseki & Co Ltd | Pedal supporting structure for work vehicle |
JP2012055281A (en) * | 2010-09-13 | 2012-03-22 | Kubota Corp | Paddy field working machine |
JP2012237201A (en) * | 2011-05-10 | 2012-12-06 | Kubota Corp | Engine controller of working machine |
-
1988
- 1988-07-14 JP JP17667388A patent/JPH0228028A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0455421U (en) * | 1990-09-20 | 1992-05-12 | ||
JPH04123724U (en) * | 1991-04-23 | 1992-11-10 | 株式会社クボタ | Gear shift operation structure |
US5323890A (en) * | 1992-04-09 | 1994-06-28 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Transmission assembly for working vehicles |
JPH06269146A (en) * | 1992-12-28 | 1994-09-22 | Ckd Corp | Small size motor having reduction mechanism |
JP2002145026A (en) * | 2000-11-10 | 2002-05-22 | Iseki & Co Ltd | Pedal supporting structure for work vehicle |
JP2012055281A (en) * | 2010-09-13 | 2012-03-22 | Kubota Corp | Paddy field working machine |
CN102396314A (en) * | 2010-09-13 | 2012-04-04 | 株式会社久保田 | Paddy field operation machine |
JP2012237201A (en) * | 2011-05-10 | 2012-12-06 | Kubota Corp | Engine controller of working machine |
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