JPH0752447Y2 - Gear shift operation device for continuously variable vehicle - Google Patents

Gear shift operation device for continuously variable vehicle

Info

Publication number
JPH0752447Y2
JPH0752447Y2 JP1459890U JP1459890U JPH0752447Y2 JP H0752447 Y2 JPH0752447 Y2 JP H0752447Y2 JP 1459890 U JP1459890 U JP 1459890U JP 1459890 U JP1459890 U JP 1459890U JP H0752447 Y2 JPH0752447 Y2 JP H0752447Y2
Authority
JP
Japan
Prior art keywords
speed change
continuously variable
lever
stator
fulcrum shaft
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 - Fee Related
Application number
JP1459890U
Other languages
Japanese (ja)
Other versions
JPH03104559U (en
Inventor
清博 森川
Original Assignee
セイレイ工業株式会社
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Filing date
Publication date
Application filed by セイレイ工業株式会社 filed Critical セイレイ工業株式会社
Priority to JP1459890U priority Critical patent/JPH0752447Y2/en
Publication of JPH03104559U publication Critical patent/JPH03104559U/ja
Application granted granted Critical
Publication of JPH0752447Y2 publication Critical patent/JPH0752447Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Gear-Shifting Mechanisms (AREA)
  • Mechanical Control Devices (AREA)

Description

【考案の詳細な説明】 (イ)産業上の利用分野 本考案は、変速レバー操作で伸縮・停止制御される油圧
サーボ機構でもって走行伝動系中の無段変速部を変速動
作させて、前進及び後進速度を無段階に変速するように
した無段変速走行車輌の変速操作装置に関する。
[Detailed Description of the Invention] (a) Industrial field of application The present invention is a forward movement by operating a continuously variable transmission section in a traveling transmission system by a hydraulic servo mechanism that is controlled to expand and contract by operating a shift lever. Also, the present invention relates to a gear shift operation device for a continuously variable traveling vehicle which is capable of continuously shifting the reverse speed.

(ロ)従来の技術 単一の変速レバーを操作することにより油圧サーボ機構
でもって走行伝動系中の無段変速部を変速動作させる無
段変速走行車輌においては、前記変速レバーに連繋し且
つ無段変速部にフィードバック接続される変速スイッチ
を操作系に設け、この変速スイッチからの信号で油圧サ
ーボ機構の油圧シリンダを伸縮・停止制御して所望の車
速を設定するように構成されるが、この種のものにあっ
ては、変速レバーが中立位置から前進方向に動かされる
時にも、また、中立位置から後進方向に動かされる時に
も、変速スイッチのステータは同方向に動くように構成
されねばならない。
(B) Conventional Technology In a continuously variable traveling vehicle in which a single speed change lever is operated to change the speed of a continuously variable speed change section in a traveling power transmission system by a hydraulic servo mechanism, the continuously variable speed change vehicle is connected to the speed change lever and is not connected. The operation system is provided with a speed change switch that is feedback-connected to the speed change section, and a signal from the speed change switch is used to control expansion / contraction of the hydraulic cylinder of the hydraulic servo mechanism to set a desired vehicle speed. In some cases, the stator of the speed change switch must be configured to move in the same direction when the shift lever is moved in the forward direction from the neutral position and when moved in the reverse direction from the neutral position. .

このため、従来のものでは、第6図から第8図に示して
いるように、クランク状の変速ガイド溝(102)に沿っ
て移行する変速レバー(101)の回動支点軸(108)に、
前進用の作動体(105)と後進用の作動体(106)を回動
自在に取付けて、それぞれの作動体(105)(106)を各
別の連動具(107)(109)で変速スイッチ(103)のス
テータ(104)に連動接続し、前進変速時には前進用の
作動体(105)を、後進変速時には後進用の作動体(10
6)を択一に変速レバー(101)に係合させて、変速レバ
ー(101)を動かすことにより変速スイッチ(103)のス
テータ(104)が同じ方向に動くように構成されてい
た。
Therefore, in the conventional one, as shown in FIG. 6 to FIG. 8, the rotation fulcrum shaft (108) of the speed change lever (101) that moves along the crank-shaped speed change guide groove (102) is provided. ,
A forward movement actuation body (105) and a reverse movement actuation body (106) are rotatably attached, and the respective actuation bodies (105) and (106) are changed by different interlocking devices (107) and (109). (103) is connected to the stator (104) in an interlocking manner, and the forward moving body (105) is used during forward gear shifting, and the reverse working body (10) during reverse gear shifting.
6) is selectively engaged with the speed change lever (101) and the speed change lever (101) is moved so that the stator (104) of the speed change switch (103) moves in the same direction.

(ハ)考案が解決しようとする課題 上述したように、従来のものは、変速レバーと変速スイ
ッチのステータとの間を、前進用及び後進用の二系統の
連動具で接続しなければならないものであったので、部
品点数が多くて構造が複雑である上に、組立面での集積
誤差も大きくなって位置調整が容易ではなく、ガタも多
くなるといった問題点があった。
(C) Problems to be Solved by the Invention As described above, in the conventional device, the gear shift lever and the stator of the gear shift switch must be connected by the two-way interlocking device for forward movement and backward movement. Therefore, there are problems that the number of parts is large and the structure is complicated, and the integration error on the assembly side is large, the position adjustment is not easy, and the play is large.

本考案は、従来のものにおける上記の問題点に鑑みてな
されたものであり、その目的とするところは、変速スイ
ッチのステータと変速レバーとの間の連動構造が従来の
ものに比べると著しく簡潔になり、位置調整にも手数を
要せず且つガタも少ないように改良された無段変速走行
車輌の変速操作装置を提供することにある。
The present invention has been made in view of the above problems in the related art, and an object thereof is to make the interlocking structure between the stator of the speed change switch and the speed change lever remarkably simple as compared with the related art. Therefore, it is an object of the present invention to provide a gear shift operation device for a continuously variable traveling vehicle, which is improved so that position adjustment does not require trouble and there is little backlash.

(ニ)課題を解決するための手段 すなわち、本考案における装置は、変速レバー(1)で
操作する油圧サーボ機構でもって走行伝動系中の無段変
速部(2)を変速動作させて前後進速度を無段階に変速
するようにした無段変速走行車輌において、前記油圧サ
ーボ機構の変速スイッチ(3)を変速レバー(1)に連
繋するに、変速スイッチ(3)のステータ(4)を回動
支点軸(5)に回動自在に取付けて該ステータ(4)に
連設する筒体(6)に回動アーム(7)を取付けるとと
もに、変速レバー(1)の回動支点軸(8)に変速アー
ム(9)を取付け、両アーム(7)(9)の間を、変速
レバーの中立時にその回動支点軸(8)の軸心を中心線
(O−O)が通るロッド(10)で結合し、変速レバー
(1)が中立位置から前・後進変速方向の何れに動かさ
れる場合にも変速スイッチ(3)のステータ(4)は同
方向に回動するようにしてあることを特徴とするもので
ある。
(D) Means for Solving the Problem That is, in the device of the present invention, the continuously variable transmission portion (2) in the traveling transmission system is shifted by the hydraulic servo mechanism operated by the shift lever (1) to move forward and backward. In a continuously variable vehicle in which the speed is continuously changed, the stator (4) of the speed change switch (3) is turned to connect the speed change switch (3) of the hydraulic servo mechanism to the speed change lever (1). A rotary arm (7) is attached to a cylindrical body (6) that is rotatably attached to a dynamic fulcrum shaft (5) and is connected to the stator (4), and a rotary fulcrum shaft (8) of a speed change lever (1) is attached. ) Is attached to the speed change arm (9), and the center line (O-O) passes between the two arms (7) and (9) through the axis of the rotation fulcrum shaft (8) when the speed change lever is neutral. 10), and the shift lever (1) moves from the neutral position to the forward / reverse shift direction. The stator (4) of the speed change switch (3) even when moved to the LES is characterized in that you have to be rotated in the same direction.

(ホ)作用 上記のように構成された変速操作装置の変速レバー
(1)を、中立位置から前進変速方向に動かすと、変速
レバー(1)の中立時には中心線(O−O)が回動支点
軸(8)の軸心を通る状態に位置していたロッド(10)
が回動支点軸(8)の軸心を上方に越える方向に動き、
変速スイッチのステータ(4)を時計方向に回動させ
る。また、変速レバー(1)を中立位置から後進変速方
向に動かすと、ロッド(10)は回動支点軸(8)の軸心
を下方に越える方向に動いて、変速スイッチのステータ
(4)を前進変速の場合と同じように時計方向に回動さ
せる。
(E) Action When the speed change lever (1) of the speed change operation device configured as described above is moved in the forward speed change direction from the neutral position, the center line (OO) rotates when the speed change lever (1) is in the neutral position. The rod (10) that was positioned so as to pass through the axis of the fulcrum shaft (8)
Moves upward beyond the axis of the rotation fulcrum shaft (8),
Rotate the stator (4) of the speed change switch clockwise. When the speed change lever (1) is moved from the neutral position to the reverse speed change direction, the rod (10) moves downward beyond the axis of the rotation fulcrum shaft (8) to move the stator (4) of the speed change switch. Rotate clockwise as in forward gear shifting.

つまり、本考案装置によれば、変速スイッチのステータ
と変速レバーとの間が単一のロッドで連動されるもので
ありながら、変速レバーが中立位置から前進変速・後進
変速の何れの方向に動かされても、変速スイッチのステ
ータは同じ方向に回動されるのである。
That is, according to the device of the present invention, although the stator of the speed change switch and the speed change lever are linked by a single rod, the speed change lever moves from the neutral position to either the forward speed change or the reverse speed change. Even then, the stator of the speed change switch is rotated in the same direction.

(ヘ)実施例 つぎに、本考案の実施例について図面を参照して説明す
る。
(F) Embodiment Next, an embodiment of the present invention will be described with reference to the drawings.

第1図は本考案装置が実施された無段変速走行車輌であ
るコンバインの全体斜視図、第2図は本考案装置の要部
構造を示す斜視図、第3図ないし第5図は本考案装置の
作動説明図である。
FIG. 1 is an overall perspective view of a combine, which is a continuously variable vehicle in which the device of the present invention is implemented, FIG. 2 is a perspective view showing a main structure of the device of the present invention, and FIGS. It is an operation | movement explanatory drawing of an apparatus.

第1図において、無段変速走行車輌であるコンバイン
は、左右一対のクローラ走行部(11)によって走行する
車体の上方に脱穀装置(12)、エンジン、運転部(13)
などの必要装置を配設するとともに、車体の前方部に刈
取搬送部(14)を昇降自在に装備して構成されている。
In FIG. 1, a combine, which is a continuously variable traveling vehicle, includes a threshing device (12), an engine and a driving section (13) above a vehicle body which is driven by a pair of left and right crawler traveling sections (11).
Necessary devices such as the above are provided, and a cutting and conveying section (14) is provided at the front of the vehicle body so as to be able to move up and down.

前記クローラ走行部(11)は、エンジンに連動する走行
ミッション等で構成される走行伝動系によって駆動され
るようになっており、その走行伝動系の変速レバー
(1)や操向レバー(15)、脱穀装置及び刈取搬送部の
各種操作レバー類等は、運転部(13)に集中配備されて
いる。
The crawler traveling section (11) is driven by a traveling transmission system including a traveling mission linked to an engine, and the speed change lever (1) and steering lever (15) of the traveling transmission system are driven. , The thresher and various operation levers of the cutting and conveying section are centrally arranged in the operating section (13).

上記走行ミッションの一部が第2図に示されているが、
該走行ミッションは、入力部に設けられた無段変速部
(2)と、その伝動下位部に連動する車軸駆動部(図示
省略)とからなり、車軸駆動部の前後進切換ギヤ部、差
動機構部を経て伝達される動力でもって上記クローラ走
行部(11)を駆動するように構成されている。
A part of the above traveling mission is shown in FIG.
The traveling mission comprises a continuously variable transmission portion (2) provided in an input portion and an axle drive portion (not shown) that is interlocked with a transmission lower portion thereof, and includes a forward / reverse switching gear portion of the axle drive portion and a differential gear. The crawler traveling section (11) is configured to be driven by the power transmitted through the mechanism section.

実施例の無段変速部(2)は、一般にリングコーン変速
機と呼ばれる摩擦無段変速機になっており、入力円板
(16)および出力円板(17)と、両円板(16)(17)に
摩擦係合される遊星コーン(18)と、遊星コーンの円錐
面に摩擦係合する変速リング(19)などで構成されてい
る。
The continuously variable transmission portion (2) of the embodiment is a friction continuously variable transmission generally called a ring cone transmission, and has an input disc (16), an output disc (17), and both discs (16). The planetary cone (18) is frictionally engaged with the (17), and the speed change ring (19) is frictionally engaged with the conical surface of the planetary cone.

そして、変速リング(19)はシフター(20)によって保
持され、そのシフター(20)がシフト軸である油圧シリ
ンダ(21)のピストンロッドに嵌着されて、油圧シリン
ダ(21)の伸縮作動で変速リング(19)が軸心方向に動
かされるようになっており、その変位量を任意に設定す
ることで、変速リングが遊星コーンの円錐面に摩擦係合
する位置が変わって、出力円板(17)側に取り出される
動力が無段変速されるようになっている。尚、以下にお
いては、前記変速リングとそれを移動させるシフター等
を無段変速部の変速動作部(22)と総称する。
The shift ring (19) is held by the shifter (20), and the shifter (20) is fitted to the piston rod of the hydraulic cylinder (21) that is the shift shaft, and the shift operation is performed by the expansion and contraction of the hydraulic cylinder (21). The ring (19) is designed to be moved in the axial direction, and by setting the displacement amount arbitrarily, the position where the speed change ring frictionally engages with the conical surface of the planet cone changes, and the output disc ( The power extracted to the 17) side is continuously variable. In the following, the speed change ring and the shifter for moving the speed change ring are collectively referred to as the speed change operation section (22) of the continuously variable speed change section.

変速レバー(1)は、第2図に示す如く、横向きの回動
支点軸(8)とそれに対して直交する方向の支点軸(2
3)を中心にして十字方向に回倒できるように軸支さ
れ、変速案内板(24)に開設された変速ガイド溝に沿っ
て移行できるようになっている。そして、変速ガイド溝
は、中立溝(25)の左右端から直交する方向に前進ガイ
ド溝(26)と後進ガイド溝(27)を連絡開設し、平面視
でクランク状を呈するように形成されている。
As shown in FIG. 2, the speed change lever (1) is provided with a lateral rotation fulcrum shaft (8) and a fulcrum shaft (2
It is pivotally supported so that it can be tilted in the cross direction around 3) and can be moved along the shift guide groove formed in the shift guide plate (24). Then, the shift guide groove is formed so as to connect the forward guide groove (26) and the reverse guide groove (27) in a direction orthogonal to the left and right ends of the neutral groove (25) and have a crank shape in a plan view. There is.

変速レバー(1)の基部には走行ミッションの前後進切
換ギヤ部を作動する作動体(28)が係わり合され、変速
レバー(1)を支点軸(23)中心で回動させて中立溝
(25)に沿って左右に回倒すれば、作動体(28)によっ
て前後進切換ギヤ部が切り換わるようになっている。
An actuating body (28) for operating the forward / reverse switching gear of the traveling mission is engaged with the base of the speed change lever (1), and the speed change lever (1) is rotated around the fulcrum shaft (23) so that the neutral groove ( When it is turned to the left or right along 25), the forward / reverse switching gear section is switched by the actuating body (28).

又、回動支点軸(8)に被嵌する変速レバー(1)の基
部筒体(29)には変速アーム(9)が取付けられ、この
変速アーム(9)が、変速スイッチ(3)のステータ
(4)から側方に延出する筒体(6)に取付けられた回
動アーム(7)に、ロッド(10)で連結される。
Further, a gearshift arm (9) is attached to the base cylinder (29) of the gearshift lever (1) fitted on the rotation fulcrum shaft (8), and this gearshift arm (9) is connected to the gearshift switch (3). A rod (10) is connected to a rotating arm (7) attached to a cylindrical body (6) extending laterally from the stator (4).

そして、ロッド(10)の中心線(O−O)、つまりロッ
ド(10)と両アーム(7)(9)との連結点を結ぶ線分
が、変速レバー(1)の中立時には回動支点軸(8)の
軸心を通る状態に位置するが、変速レバー(1)を前進
変速方向に移行すると、ロッド(10)が回動支点軸
(8)の軸心を上方に越える方向に動き、また、変速レ
バー(1)を中立位置から後進変速方向に動かすと、ロ
ッド(10)が回動支点軸(8)の軸心を下方に越える方
向に動いて、前後進変速いずれの場合にもステータ
(4)は同じ方向に回動されるようになっている。
The center line (O-O) of the rod (10), that is, the line segment connecting the connecting points between the rod (10) and both arms (7) and (9) is the pivot point when the speed change lever (1) is in the neutral position. Although it is positioned so as to pass through the shaft center of the shaft (8), when the speed change lever (1) is moved in the forward speed change direction, the rod (10) moves in a direction in which the shaft center of the rotation fulcrum shaft (8) is moved upward. When the speed change lever (1) is moved from the neutral position to the reverse speed change direction, the rod (10) moves downward beyond the axis of the rotation fulcrum shaft (8), which may cause a forward or reverse speed change. The stator (4) is also designed to rotate in the same direction.

変速スイッチ(3)は、回動支点軸(5)に回動自在に
取付けられる扇形のステータ(4)と、回動支点軸
(5)側に取付けられるニードル接点(30)とで構成さ
れ、ステータ(4)には中央部を不感域とする円弧状の
変速接点(31)が設けられて、ニードル接点(30)が不
感域に位置するときにはスイッチ開に保たれ、ニードル
接点(30)が変速接点(31)に接触するときにはスイッ
チ閉に保たれるようになっている。
The speed change switch (3) includes a fan-shaped stator (4) rotatably attached to the rotation fulcrum shaft (5) and a needle contact (30) attached to the rotation fulcrum shaft (5) side. The stator (4) is provided with an arcuate speed change contact (31) having a central part as a dead zone, and when the needle contact (30) is located in the dead zone, the switch is kept open and the needle contact (30) is The switch is kept closed when the speed change contact (31) is touched.

さらに、前記回動支点軸(5)の一端部には作動腕(3
2)が取付けられ、該作動腕(32)が、無段変速部の変
速動作部(22)におけるシフトレバーにフィードバック
接続(33)されている。
In addition, one end of the rotation fulcrum shaft (5) has an operating arm (3
2) is attached, and the actuating arm (32) is feedback-connected (33) to the shift lever in the shift operation part (22) of the continuously variable transmission part.

上述の変速スイッチ(3)は、前記油圧シリンダ(21)
を伸縮・停止制御するためのもので、油圧回路のソレノ
イドバルブ(34)にライン結線され、接点(30)(31)
が閉状態にあるときには、ソレノイドバルブを作動させ
て油圧シリンダ(21)を伸縮動させ、接点(30)(31)
が開状態になれば油圧回路を中立状態にして油圧シリン
ダ(21)の伸縮動を止めるようになっている。
The above-mentioned speed change switch (3) is provided in the hydraulic cylinder (21).
It is used to control the expansion and contraction / stop of the valve. It is line-connected to the solenoid valve (34) of the hydraulic circuit and the contacts (30) (31)
Is closed, the solenoid valve is actuated to expand and contract the hydraulic cylinder (21), and the contacts (30) (31)
When is opened, the hydraulic circuit is set to a neutral state to stop the expansion and contraction of the hydraulic cylinder (21).

つぎに、上記のように構成された変速操作装置の作動態
様を説明する。
Next, an operation mode of the speed change operation device configured as described above will be described.

変速レバー(1)が中立溝(25)部に位置する時は、無
段変速部(2)は無出力状態にあり、ロッド(10)は、
その中心線(O−O)が回動支点軸(8)の軸心を通る
体勢になって位置し、変速スイッチ(3)のステータ
(4)が中立位置に保たれてニードル接点(30)は不感
域にあり、スイッチ開状態となって油圧シリンダ(21)
は伸縮作動しない(第3図参照)。
When the speed change lever (1) is located in the neutral groove (25), the continuously variable speed changer (2) is in a non-output state, and the rod (10) is
The center line (O-O) is positioned so as to pass through the axis of the rotation fulcrum shaft (8), and the stator (4) of the speed change switch (3) is kept in the neutral position to keep the needle contact (30). Is in the dead zone, the switch is open and the hydraulic cylinder (21)
Does not expand and contract (see Fig. 3).

ついで、変速レバー(1)を中立溝(25)の右端に回倒
すると、作動体(28)により前後進切換ギヤ部が前進状
態に切り換えられる。そして、変速レバー(1)を前進
ガイド溝(26)に沿って前方に動かせば、ロッド(10)
が回動支点軸(8)の軸心を上方に越えるように動き、
そのロッド(10)の押し作用でステータ(4)を時計方
向に回動させることとなり、それによって接点(30)
(31)が閉じてソレノイドバルブ(34)が作動開始し油
圧シリンダ(21)により変速動作部(22)が増速側に移
行させられる。
Then, when the speed change lever (1) is turned to the right end of the neutral groove (25), the forward-reverse switching gear unit is switched to the forward state by the actuating body (28). Then, if the speed change lever (1) is moved forward along the forward guide groove (26), the rod (10)
Moves over the axis of the fulcrum shaft (8),
The pushing action of the rod (10) causes the stator (4) to rotate clockwise, which causes the contact (30).
The solenoid valve (34) is started by closing the (31), and the hydraulic cylinder (21) shifts the speed change operation part (22) to the speed increasing side.

しかして、変速レバー(1)を所望の移行位置で止める
と、変速動作部(22)からのフィードバック信号でニー
ドル接点(30)が不感域に戻されてスイッチ開になり、
油圧シリンダ(21)の作動が停止されて変速動作部(2
2)が所望の前進変速位置に保たれることになる。
Then, when the speed change lever (1) is stopped at the desired transition position, the needle contact (30) is returned to the dead zone by the feedback signal from the speed change operation unit (22) and the switch is opened,
The operation of the hydraulic cylinder (21) is stopped and
2) will be maintained at the desired forward shift position.

又、後進の場合には、変速レバー(1)を中立溝(25)
の左端に回倒すると、前後進切換ギヤ部が前進状態に切
り換わる。ついで、変速レバー(1)を後進ガイド溝
(27)に沿って後方向に動かせば、ロッド(10)が回動
支点軸(8)の軸心を下方に越えるように動き、その押
し作用でステータ(4)はやはり時計方向に回動させら
れるのであり、それによって接点(30)(31)が閉じ、
ソレノイドバルブ(34)が作動開始して油圧シリンダ
(21)により変速動作部(22)が後進増速側に移行させ
られるのである。
In the case of reverse, use the speed change lever (1) with the neutral groove (25).
When it is turned to the left end, the forward / reverse switching gear unit is switched to the forward drive state. Then, if the speed change lever (1) is moved in the backward direction along the reverse guide groove (27), the rod (10) moves so as to move downward beyond the axis of the rotation fulcrum shaft (8), and the pushing action thereof is applied. The stator (4) is also rotated clockwise, which causes the contacts (30) (31) to close,
The solenoid valve (34) starts to operate, and the hydraulic cylinder (21) causes the speed change operation unit (22) to shift to the reverse speed increasing side.

しかして、変速レバー(1)を所望の移行位置で止める
と、変速動作部(22)からのフィードバック信号でニー
ドル接点(30)が不感域に戻されてスイッチ開になり、
油圧シリンダ(21)の作動が停止されて変速動作部(2
2)が所望の後進変速位置に保たれるのである。
Then, when the speed change lever (1) is stopped at the desired transition position, the needle contact (30) is returned to the dead zone by the feedback signal from the speed change operation unit (22) and the switch is opened,
The operation of the hydraulic cylinder (21) is stopped and
2) is maintained in the desired reverse gear position.

なお、本考案の変速操作装置は、油圧サーボ機構を介し
て無段変速部の変速動作部を作動させるものとなってい
るが、無段変速部の変速動作部を油圧サーボ機構を介す
ことなく直接に変速レバーで作動させる構造のものにも
容易に変形適用することができるのである。
The gear shift operating device of the present invention operates the gear shift operation unit of the continuously variable transmission unit via the hydraulic servo mechanism. However, the gear shift operation unit of the continuously variable transmission unit may be operated via the hydraulic servo mechanism. Instead, it can be easily modified and applied to a structure directly operated by the shift lever.

(ト)考案の効果 本考案装置によれば、変速スイッチ(3)のステータ
(4)と変速レバー(1)との間を単一のロッド(10)
で連動しながら、変速レバー(1)が前進変速方向に動
かされるときも、後進変速方向に動かされるときにも、
変速スイッチのステータを同じ方向に回動させることが
できるので、変速レバーとステータとの間を前進用及び
後進用の二系統の連動具で接続しなければならなかった
従来構造のものに比べると、所要部品点数が低減されて
構造が著しく簡潔になり、位置調整にも容易でガタも少
なくなる利点がある。
According to the device of the present invention, the single rod (10) is provided between the stator (4) of the speed change switch (3) and the speed change lever (1).
, While the gearshift lever (1) is moved in the forward gearshift direction and in the reverse gearshift direction,
Since the stator of the speed change switch can be rotated in the same direction, compared to the conventional structure in which the speed change lever and the stator had to be connected by two system interlocking devices for forward and reverse. The advantages are that the number of required parts is reduced, the structure is remarkably simplified, the position adjustment is easy, and the backlash is reduced.

【図面の簡単な説明】[Brief description of drawings]

第1図は本考案装置が実施された無段変速走行車輌であ
るコンバインの全体斜視図、第2図は本考案装置の要部
構造を示す斜視図、第3図ないし第5図は本考案装置の
作動説明図、第6図は従来の変速操作構造を示す説明
図、第7図は従来の変速操作構造における変速レバー部
の正面図、第8図は同じく変速ガイド板部の平面図であ
る。 (1)……変速レバー、(2)……無段変速部 (3)……変速スイッチ、(4)……ステータ (5)……回動支点軸、(6)……筒体 (7)……回動アーム、(8)……回動支点軸 (9)……変速アーム、(10)……ロッド
FIG. 1 is an overall perspective view of a combine, which is a continuously variable vehicle in which the device of the present invention is implemented, FIG. 2 is a perspective view showing a main structure of the device of the present invention, and FIGS. 6 is an explanatory view showing a conventional gear shift operation structure, FIG. 7 is a front view of a gear shift lever portion in the conventional gear shift operation structure, and FIG. 8 is a plan view of the gear shift guide plate portion. is there. (1) ... gear shifting lever, (2) ... continuously variable transmission section (3) ... gear shifting switch, (4) ... stator (5) ... rotation fulcrum shaft, (6) ... cylinder (7) ) ... Rotating arm, (8) ... Rotating fulcrum shaft (9) ... Transmission arm, (10) ... Rod

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】変速レバー(1)で操作する油圧サーボ機
構でもって走行伝動系中の無段変速部(2)を変速動作
させて前後進速度を無段に変速するようにした無段変速
走行車輌において、前記油圧サーボ機構の変速スイッチ
(3)を変速レバー(1)に連繋するに、変速スイッチ
(3)のステータ(4)を回動支点軸(5)に回動自在
に取付けて該ステータ(4)に連設する筒体(6)に回
動アーム(7)を取付けると共に、変速レバー(1)の
回動支点軸(8)に変速アーム(9)を取付け、両アー
ム(7)(9)の間を、変速レバーの中立時にその回動
支点軸(8)の軸心を中心線(O−O)が通るロッド
(10)で結合し、変速レバー(1)が中立位置から前・
後進変速方向の何れに動かされる場合にも変速スイッチ
(3)のステータ(4)が同方向に回動するようにして
ある無段変速走行車輌の変速操作装置。
1. A continuously variable transmission in which a forward / reverse speed is continuously varied by operating a continuously variable transmission portion (2) in a traveling transmission system by a hydraulic servo mechanism operated by a transmission lever (1). In a traveling vehicle, in order to connect the speed change switch (3) of the hydraulic servo mechanism to the speed change lever (1), a stator (4) of the speed change switch (3) is rotatably attached to a rotation fulcrum shaft (5). The rotating arm (7) is attached to the cylindrical body (6) connected to the stator (4), and the speed change arm (9) is attached to the rotation fulcrum shaft (8) of the speed change lever (1). 7) and 9) are connected by a rod (10) through which the center line (OO) passes through the axis of the rotation fulcrum shaft (8) when the speed change lever is neutral, and the speed change lever (1) is neutral. From position to front
A shift operating device for a continuously variable traveling vehicle, wherein the stator (4) of the shift switch (3) is rotated in the same direction regardless of whether it is moved in the reverse shift direction.
JP1459890U 1990-02-15 1990-02-15 Gear shift operation device for continuously variable vehicle Expired - Fee Related JPH0752447Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1459890U JPH0752447Y2 (en) 1990-02-15 1990-02-15 Gear shift operation device for continuously variable vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1459890U JPH0752447Y2 (en) 1990-02-15 1990-02-15 Gear shift operation device for continuously variable vehicle

Publications (2)

Publication Number Publication Date
JPH03104559U JPH03104559U (en) 1991-10-30
JPH0752447Y2 true JPH0752447Y2 (en) 1995-11-29

Family

ID=31517950

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1459890U Expired - Fee Related JPH0752447Y2 (en) 1990-02-15 1990-02-15 Gear shift operation device for continuously variable vehicle

Country Status (1)

Country Link
JP (1) JPH0752447Y2 (en)

Also Published As

Publication number Publication date
JPH03104559U (en) 1991-10-30

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