JPH0228750B2 - - Google Patents
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- Publication number
- JPH0228750B2 JPH0228750B2 JP59064507A JP6450784A JPH0228750B2 JP H0228750 B2 JPH0228750 B2 JP H0228750B2 JP 59064507 A JP59064507 A JP 59064507A JP 6450784 A JP6450784 A JP 6450784A JP H0228750 B2 JPH0228750 B2 JP H0228750B2
- Authority
- JP
- Japan
- Prior art keywords
- pedal
- shaft
- vehicle
- continuously variable
- variable transmission
- 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
- 230000007246 mechanism Effects 0.000 claims description 43
- 230000005540 biological transmission Effects 0.000 claims description 38
- 230000007935 neutral effect Effects 0.000 claims description 5
- 230000000994 depressogenic effect Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000000881 depressing effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Gear-Shifting Mechanisms (AREA)
- Control Of Transmission Device (AREA)
- Arrangement Of Transmissions (AREA)
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
- Friction Gearing (AREA)
- Transmission Devices (AREA)
Description
【発明の詳細な説明】
＜産業上の利用分野＞
本発明は、例えば、ライデイングモーア等の乗
用走行作業車の機械式前後進無段変速装置の操作
機構に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an operating mechanism for a mechanical forward/reverse continuously variable transmission for a riding mower or other riding mower.
＜従来技術＞
ライデイングモーア等の簡便な乗用走行作業車
にあつては、家庭の主婦等、走行車両に関する知
識の乏しい者でも簡単に運転ができるものが望ま
れる。<Prior Art> It is desired that a simple passenger working vehicle such as a riding mower be able to be easily operated even by a housewife or other person with little knowledge of traveling vehicles.
しかし従来のこの種車両の運転操作は、クラツ
チ操作、変速操作、前後進切換操作等を個々に、
かつ一定の手順に従つて行なわなければならず、
その操作は複雑であつた。 However, in the conventional driving operations of this type of vehicle, clutch operation, gear shifting operation, forward/reverse switching operation, etc. are performed individually.
and must be carried out according to certain procedures,
The operation was complicated.
そこで、一本の操作レバーにより、クラツチ操
作、変速操作及び前後進切換操作の各操作を行え
るようにしたものが、既に提案されている（例え
ば、特開昭55−6651号公報、実開昭52−31128号
公報参照）。 Therefore, devices have already been proposed in which each of the clutch operation, gear shift operation, and forward/reverse switching operation can be performed using a single operating lever (for example, Japanese Patent Application Laid-Open No. 55-6651, Japanese Utility Model Application No. (See Publication No. 52-31128).
＜発明が解決しようとする課題＞
前記従来の一本の操作レバーによる変速操作
は、操作としては容易であるが、手によつて操作
しなければならない。従つて操作レバーを操作す
るとき、片手でハンドル操作をしつつ、他の片手
で操作レバーを操作しなければならず、危険を伴
う操作であつた。<Problems to be Solved by the Invention> Although the conventional gear shifting operation using a single operating lever is easy to operate, it must be operated by hand. Therefore, when operating the control lever, it is necessary to operate the handle with one hand while operating the control lever with the other hand, which is a dangerous operation.
そこで、本発明は、両手でハンドル操作をしつ
つ変速操作性やクラツチ操作を行うことができる
機械式前後進無段変速装置の操作機構を提供する
ことを目的とする。 SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an operating mechanism for a mechanical forward/reverse continuously variable transmission that allows gear shifting and clutch operation to be performed while operating the handle with both hands.
＜課題を解決するための手段＞
前記目的を達成するため、本発明は、次の手段
を講じた。即ち、本発明の特徴とする処は、シフ
タの往復動により一方向回転数が零から最高回転
数まで無段階に変速される無段変速機構の出力軸
に、シフトフオークの往復動で歯車噛合を切換え
て車輌の前・後進を選択する前後進切換機構が連
結されて成る機械式前後進無段変速装置の変速並
びに前後進切換を操作する操作機構において、
前記車輌の巾方向の横軸心を有するペダル軸
と、該ペダル軸に回動自在に設けられて該ペダル
軸の前後に踏面部を有するペダルと、該ペダルの
一側方に車輌の前後方向の横軸芯を有する回動自
在な回動軸と、該回動軸から前記ペダルの前後の
踏面部下方に向つて突出した前後一対のアームと
を有し、前記ペダルを踏み込まない中立位置にお
いて該各アームと前後の踏面部下面との間に所定
のスキマが形成され、かつ、前記ペダルとシフト
フオークとが連結手段で連動連結され、前記回動
軸とシフタとが連動手段で連動連結されている点
にある。<Means for Solving the Problems> In order to achieve the above object, the present invention takes the following measures. That is, the feature of the present invention is that the output shaft of the continuously variable transmission mechanism, in which the rotational speed in one direction is steplessly changed from zero to the maximum rotational speed by the reciprocating movement of the shifter, is engaged with gears by the reciprocating movement of the shift fork. In the operating mechanism for operating the gear change and forward/reverse switching of a mechanical forward/reverse continuously variable transmission, which is connected to a forward/reverse switching mechanism that selects forward/backward movement of the vehicle by switching the forward/backward movement of the vehicle, a pedal having a pedal shaft, a pedal rotatably provided on the pedal shaft and having a tread portion on the front and rear of the pedal shaft, and a rotatable pedal having a horizontal axis in the longitudinal direction of the vehicle on one side of the pedal; and a pair of front and rear arms protruding from the rotation axis toward the bottom of the front and rear treads of the pedal, and in a neutral position where the pedal is not depressed, each arm and the bottom surface of the front and rear treads are connected to each other. A predetermined gap is formed between the pedal and the shift fork, the pedal and the shift fork are interlocked and connected by a connecting means, and the rotation shaft and the shifter are interlocked and connected by an interlocking means.
＜作用＞
本発明によれば、ペダルとシフトフオークが連
結手段で連動されているので、ペダルの前部踏面
部を足で踏み込むことにより、シフトフオークが
一方に移動し、後部踏面部を踏み込むことによ
り、シフトフオークが他方に移動し、このシフト
フオームの往復動により歯車噛合が切換えられ、
前後進が選択される。<Operation> According to the present invention, since the pedal and the shift fork are linked by the connecting means, by stepping on the front tread of the pedal, the shift fork moves in one direction and the rear tread is depressed. The shift fork moves to the other side, and the reciprocating movement of the shift fork switches the gear engagement.
Forward and forward movement is selected.
ペダルの踏面部下面とアーム間に所定のスキマ
が形成されているので、前記前後進切換操作時の
ペダルの回動によつては、アームと踏面部下面と
は当接しないよう構成されている。 Since a predetermined gap is formed between the lower surface of the pedal tread and the arm, the arm and the lower surface of the tread do not come into contact with each other depending on the rotation of the pedal during the forward/reverse switching operation. .
そして、前記前後進切換が完了した後、更にペ
ダルの踏面部を踏込むことにより、踏面部下面が
アームに当接して、アームを押動し、回動軸を回
動させる。この回動軸とシフタが連動手段で連結
されているので、シフタは回動軸の回動に従つて
移動し、無段変速機構の回転数を零から最高回転
まで無段階に変更する。 Then, after the forward/reverse switching is completed, by further depressing the tread portion of the pedal, the lower surface of the tread abuts the arm, pushes the arm, and rotates the rotation shaft. Since the rotation shaft and the shifter are connected by the interlocking means, the shifter moves according to the rotation of the rotation shaft, and continuously changes the rotation speed of the continuously variable transmission mechanism from zero to maximum rotation.
以上のように、本発明によれば、１つのペダル
の同一踏み込み操作で、前後進切換え及び変速操
作が行える。 As described above, according to the present invention, forward/reverse switching and gear shifting operations can be performed with the same depression operation of one pedal.
（実施例）
第１図から第６図は本発明の第１実施例とその
操作機構を示しており、１はライデイングモーア
で例示される乗用走行作業車で、操向輪とされる
左右一対の前輪２と、駆動輪とされる左右一対の
後輪３とを備えている。(Embodiment) FIGS. 1 to 6 show a first embodiment of the present invention and its operating mechanism, and 1 is a riding mower exemplified by a riding mower, with a pair of left and right steering wheels. The vehicle includes a front wheel 2 and a pair of left and right rear wheels 3 that serve as driving wheels.
作業車１の車体４はフレーム構造で、車体４の
前部には操向機構５が後傾状に立設され、該操向
機構５は図外の伝達手段を介して前輪２を操向可
能である。 The vehicle body 4 of the work vehicle 1 has a frame structure, and a steering mechanism 5 is installed at the front of the vehicle body 4 in a rearwardly inclined manner, and the steering mechanism 5 steers the front wheels 2 via a transmission means (not shown). It is possible.
車体４の後部上面にはエンジン６が搭載され、
該エンジン６はエンジンカバー７で覆われてお
り、本例ではエンジンカバー７の中段上面部に運
転席８が備えられている。 An engine 6 is mounted on the rear upper surface of the vehicle body 4.
The engine 6 is covered with an engine cover 7, and in this example, a driver's seat 8 is provided on the middle upper surface of the engine cover 7.
而して、運転席８上のオペレータはステツプ部
９上のペダル形の変速切換操作機構１０を足で操
作して駆動輪たる後輪３を無段にかつ前後に切換
可能であるとともに、操向機構５を介して前輪２
を操向可能である。 The operator on the driver's seat 8 can steplessly shift the rear wheel 3, which is the driving wheel, back and forth by operating the pedal-shaped gear change operation mechanism 10 on the step section 9 with his/her foot. front wheel 2 through the steering mechanism 5.
can be steered.
エンジンン６の下面側には伝動ケース１１が取
付けられ、本例では該伝動ケース１１は車体４の
下面側又は車体４を構成して平面長手形枠体の体
後方向枠の内側面側に図外の取付け構造で支持さ
れている。 A transmission case 11 is attached to the lower surface of the engine 6, and in this example, the transmission case 11 is attached to the lower surface of the vehicle body 4 or to the inner surface of the rearward frame of the planar longitudinal frame that constitutes the vehicle body 4. It is supported by a mounting structure not shown.
ここにおいて、エンジン６と伝動ケース１１は
縦方向に並べられて、平面的にはエンジン６と伝
動ケース１１は重合されて車体４の枠内に納つて
いる。 Here, the engine 6 and the transmission case 11 are arranged in the vertical direction, and in plan view, the engine 6 and the transmission case 11 are overlapped and housed within the frame of the vehicle body 4.
エンジン６の出力軸１２はフライホイール６Ａ
を介して前方に突出され、該出力軸１２は車体４
の横巾中央部になつて駆動プーリ１３が取付けら
れている。 The output shaft 12 of the engine 6 is the flywheel 6A
The output shaft 12 is projected forward through the vehicle body 4.
A drive pulley 13 is attached at the center of the width.
伝動ケース１１の中には摩擦無段変速機構１４
とギヤによる前後進切換機構１５が前後方向に並
設されて内蔵支持されており、両機構１４，１５
は同一軸心上の連動軸系１６により連動連結さ
れ、該連動軸系１６はエンジン６の出力軸１２の
下方にあり、かつ、軸方向を同じ方向として平行
関係にある。 Inside the transmission case 11 is a friction continuously variable transmission mechanism 14.
and a gear-based forward/reverse switching mechanism 15 are arranged in parallel in the front/rear direction and are internally supported, and both mechanisms 14, 15
are interlocked and connected by an interlocking shaft system 16 on the same axis, and the interlocking shaft system 16 is located below the output shaft 12 of the engine 6 and is in a parallel relationship with the same axial direction.
即ち、連動軸系１６は無段変速機構１４の入力
軸１７と出力軸１８とから構成され、それぞれ軸
受１９，２０を介して架設支持されており、入力
軸１７上には伝動ケース１１より前方に突出した
部分に従動プーリ２１，２２が装着され、これら
各プーリー２１，２２と前述した駆動プーリ１３
とにそれぞれベルト２３，２４を巻掛けてここに
巻掛伝動機構２５が構成されている。 That is, the interlocking shaft system 16 is composed of an input shaft 17 and an output shaft 18 of the continuously variable transmission mechanism 14, which are supported via bearings 19 and 20, respectively. Driven pulleys 21 and 22 are attached to the protruding portions, and these pulleys 21 and 22 and the aforementioned driving pulley 13
A winding transmission mechanism 25 is constructed by winding belts 23 and 24 around these, respectively.
従動プーリ２１は入力軸１７に軸受２６を介し
て套嵌支持されて両者は相対回転自在であり、該
プーリ２１には前面に継手部２１Ａが備えられて
いる。 The driven pulley 21 is supported by the input shaft 17 through a bearing 26 so that the two can rotate freely, and the pulley 21 is provided with a joint portion 21A on the front surface.
他方の従動プーリ２２はキー又はスプラインを
介して入力軸１７に取付けられている。 The other driven pulley 22 is attached to the input shaft 17 via a key or spline.
モーアで示す作業機２７は前輪２と後輪３間に
おいて車体４にリンク機構２８を介して昇降固定
自在に支持されており、該作業機２７は刈刃体２
９を備えるとともに動力受入部３０を備え、該受
入部３０と前記継手部２１Ａとを自在継手軸３１
によつて連結することで、刈刃体２９は縦軸回り
に回転可能とされている。 A working machine 27 represented by a mower is supported on the vehicle body 4 between the front wheels 2 and rear wheels 3 via a link mechanism 28 so as to be able to be raised and lowered.
9 and a power receiving part 30, and the receiving part 30 and the joint part 21A are connected to a universal joint shaft 31.
The cutting blade body 29 is rotatable around the vertical axis by being connected by.
なお、作業機は２７はリンク機構２８に対して
又リンク機構２８ごとに車体４より取外し自在で
ある。 In addition, the working machine 27 can be freely removed from the vehicle body 4 with respect to the link mechanism 28 or each link mechanism 28.
無段変速機構１４は、例えば特公昭57−13221
号公報で開示されている摩擦無段変速機が採用可
能である。但し、その他の摩擦ローラ、デイスク
等から構成される無段変速機であつてもよい。 The continuously variable transmission mechanism 14 is, for example, manufactured by Japanese Patent Publication No. 57-13221.
The friction continuously variable transmission disclosed in the above publication can be adopted. However, a continuously variable transmission composed of other friction rollers, disks, etc. may also be used.
本例の無段変速機構１４は前述公報開示の構造
であり、入力軸１７にスラスト軸受３２を介して
取付けられた軌道リング３３と、放射状に配列さ
れた複数個の円錐形転子３４と、該転子３４の円
錐面３４Ａに摩擦係合された変速リング３５と、
転子３４の第２環状伝動面３４Ｃに摩擦係合され
た出力軸１８に取付けられた筒体３６とからな
り、変速リング３５を遊動自在に支持された転子
３４の円錐面３４Ａ上を軸方向（第２図では左右
方向）に摺動させることにより、転子３４の第１
環状伝動面３４Ｂに軌道リング３３の外周縁が、
第２環状伝動面３４Ｃに筒体３６の外周縁が、そ
れぞれ摩擦係合されていることから、一方向の無
段変速が可能とされている。 The continuously variable transmission mechanism 14 of this example has the structure disclosed in the above-mentioned publication, and includes a raceway ring 33 attached to the input shaft 17 via a thrust bearing 32, a plurality of conical rotors 34 arranged radially, a speed change ring 35 frictionally engaged with the conical surface 34A of the trochanter 34;
It consists of a cylindrical body 36 attached to the output shaft 18 that is frictionally engaged with the second annular transmission surface 34C of the trochanter 34, and a cylindrical body 36 attached to the output shaft 18 that is frictionally engaged with the second annular transmission surface 34C of the trochanter 34. By sliding it in the direction (left and right in FIG. 2), the first part of the trochanter 34 is
The outer peripheral edge of the raceway ring 33 is on the annular transmission surface 34B,
Since the outer peripheral edge of the cylinder 36 is frictionally engaged with the second annular transmission surface 34C, continuously variable speed in one direction is possible.
前後進切換機構１５は出力軸１８上にスプライ
ンを介して摺動自在に套嵌されたスライデイング
ギヤ３７と、出力軸１８の側方に架設された中間
軸３８上に取付けられた大径ギヤ３９Ａと小径ギ
ヤ３９Ｂを有する逆転ギヤ３９と、出力軸１８の
下方において軸受４０を介して支持された本例で
はベベルピニオンを有する車輪駆動軸、即ち、出
力軸系４１上の伝動ギヤ４２とから構成され、該
伝動ギヤ４２と逆転ギヤ３９の小径ギヤ３９Ｂと
が咬合され、スライデイングギヤ３７が伝動ギヤ
４２と逆転ギヤ３９の大径ギヤ３９Ａとに択一的
に咬合可能とされている。 The forward/reverse switching mechanism 15 includes a sliding gear 37 slidably fitted onto the output shaft 18 via a spline, and a large diameter gear mounted on an intermediate shaft 38 installed on the side of the output shaft 18. 39A and a small-diameter gear 39B, and a transmission gear 42 on a wheel drive shaft having a bevel pinion in this example, that is, a transmission gear 41 supported below the output shaft 18 via a bearing 40. The transmission gear 42 and the small diameter gear 39B of the reverse gear 39 are configured to engage with each other, and the sliding gear 37 can selectively engage with the transmission gear 42 and the large diameter gear 39A of the reverse gear 39.
車輪駆動軸即ち、出力軸系４１のベベルピニオ
ンは、デフ機構４２のクラウンギヤ４２Ａに咬合
され、後輪にそれぞれ連動されているデフ出力軸
が車輪４３とされ、ここに後輪が前後進切換自在
として駆動可能とされている。 The wheel drive shaft, that is, the bevel pinion of the output shaft system 41 is engaged with the crown gear 42A of the differential mechanism 42, and the differential output shaft that is linked to the rear wheels is the wheel 43, and the rear wheels are switched between forward and backward directions. It is said that it can be driven freely.
無段変速機構１４には変速機構４３が、前後進
切換機構１５には変換機構４４が連係されてお
り、各変換機構４３，４４はペダル形操作機構１
０に連係されている。 A transmission mechanism 43 is connected to the continuously variable transmission mechanism 14, and a conversion mechanism 44 is connected to the forward/reverse switching mechanism 15.
It is linked to 0.
無段変速用の変速機構４３は変速リング３５に
係合された扇形部材４５を有するシフタ４６を備
え、該シフタ４６はシフトロツド４７に摺動自在
に套嵌され、更に、ロツド４７に巻回の中立復帰
バネ４８によつてシフタ４６が中立方向に付勢さ
れている。 The transmission mechanism 43 for continuously variable transmission includes a shifter 46 having a fan-shaped member 45 engaged with the transmission ring 35. The shifter 46 is slidably fitted onto a shift rod 47, and further has a winding section on the rod 47. A neutral return spring 48 biases the shifter 46 in the neutral direction.
そして、シフタ４６の被係合部４６Ａに伝動ケ
ースの蓋１１Ａに支持された縦軸４９の下部アー
ム４９Ａが係合され、縦軸４９には上部アーム４
９Ｂが取付けられている。 Then, the lower arm 49A of the vertical shaft 49 supported by the lid 11A of the transmission case is engaged with the engaged portion 46A of the shifter 46, and the upper arm 49A of the vertical shaft 49 is engaged with the engaged portion 46A of the shifter 46.
9B is installed.
また、前後進切換用の変換機構４４はスライデ
イングギヤに係合されたシフトフオーク５０と、
フオーク軸５１とを備え、蓋１１Ａに支持された
縦軸５２に上下のアーム５３Ａ，５３Ｂが取付け
られ、下部のアーム５３Ａがシフトフオーク５０
の被係合部５０Ａに係合されて構成されている。 Further, the conversion mechanism 44 for switching forward and backward travel includes a shift fork 50 that is engaged with a sliding gear,
Upper and lower arms 53A, 53B are attached to a vertical shaft 52 supported by the lid 11A, and the lower arm 53A is connected to the shift fork 50.
It is configured to be engaged with the engaged portion 50A of.
ペダル形の操作機構１０は第３図、第５図で示
す如く車体４側の固定部材５４に横軸方向（車幅
方向）として取付けられたペダル軸５５と、該ペ
ダル軸５５に套嵌されて前後に踏面部５６Ａ，５
６Ｂを有する操作具であるペダル５６と、ペダル
５６のボスより下方に突出されたアーム５７とを
備えており、該アーム５７と変換機構４４の上部
アーム５３Ｂとを中間に中継リンク５８を有する
ロツド５９を介してそれぞれピン６０，６１によ
り連動連結してなる。 As shown in FIGS. 3 and 5, the pedal-shaped operating mechanism 10 includes a pedal shaft 55 that is attached to a fixed member 54 on the vehicle body 4 side in the transverse direction (vehicle width direction), and a pedal shaft 55 that is fitted onto the pedal shaft 55. tread portions 56A, 5 at the front and rear.
6B, and an arm 57 protruding downward from the boss of the pedal 56, and a rod having a relay link 58 between the arm 57 and the upper arm 53B of the conversion mechanism 44. 59, and are interlocked and connected by pins 60 and 61, respectively.
又、ペダル５６の一側方には前後方向の固定筒
６２に回動自在として挿支された回動軸６３が設
けられ、該軸６３にはペダル５６の前後踏面部に
対して所定のスキマ６４を介して対面された前後
一対のアーム６５，６６が備えられ、更に軸６３
には下向アーム６７が取付けられ、該下向アーム
６７と変換機構４３の上部アーム４９Ｂとが、本
例では押引方向に伝達可能なボーデンワイヤ６８
を介してピン６９とナツト７０で連動連結されて
いる。 Further, a rotation shaft 63 is provided on one side of the pedal 56 and is rotatably supported by a fixed cylinder 62 in the front-rear direction. A pair of front and rear arms 65 and 66 are provided which face each other via a shaft 63.
A downward arm 67 is attached to the , and the downward arm 67 and the upper arm 49B of the conversion mechanism 43 are connected to a Bowden wire 68 capable of transmitting in the push/pull direction.
It is interlocked and connected by a pin 69 and a nut 70 via.
従つて、本実施例ではペダル５６を第３図の矢
示ａ，ｂのいずれかに踏込むことによつて中継リ
ンク５８、ロツド５９等の連結手段を介して変換
機構４４のシフトフオーク５０によりスライデイ
ングギヤ３７が第６図の矢示ｃ摺動され、前後の
いずれかにセレクト可能とされているのであり、
このセレクト範囲において、前記スキマ６４によ
りペダル５６の踏力はアーム６５，６６に伝達で
きないようにされている。即ち、無段変速機構１
４は前後進切換の範囲において中立に保持されて
いる。 Therefore, in this embodiment, by depressing the pedal 56 in the direction indicated by the arrows a and b in FIG. The sliding gear 37 is slid as indicated by the arrow c in Fig. 6, and can be selected either forward or backward.
In this selection range, the clearance 64 prevents the pedal force applied to the pedal 56 from being transmitted to the arms 65 and 66. That is, the continuously variable transmission mechanism 1
4 is maintained neutrally within the range of forward/reverse switching.
更に、ペダル５６を矢示ａ，ｂのいずれかに踏
込むとペダル５６の踏面がアーム６５，６６のい
ずれかに接当され、その踏力（操作力）が連結手
段であるボーデンワイヤ６８を介して変換機構４
３のシフタ４６を第６図の矢示ｄ方向に摺動さ
せ、変速リング３５が摺動され、中立を含んで無
段に変速可能とされている。 Further, when the pedal 56 is depressed in the direction indicated by the arrows a and b, the tread surface of the pedal 56 comes into contact with either the arm 65 or 66, and the pedal force (operating force) is transmitted through the Bowden wire 68, which is a connecting means. Conversion mechanism 4
By sliding the shifter 46 of No. 3 in the direction of the arrow d in FIG. 6, the speed change ring 35 is slid, and the speed can be changed steplessly including the neutral position.
ここで、スキマ６４は前後進切換のセレクト許
容範囲を構成し、この許容範囲はボーデンワイヤ
６８のたるみとか、ピン６０又はナツト７０のガ
タ（例えば、長孔）で構成してもよい。 Here, the gap 64 constitutes a selection tolerance range for forward/reverse switching, and this tolerance range may be constructed by slack in the Bowden wire 68 or play in the pin 60 or nut 70 (e.g., elongated hole).
＜発明の効果＞
本発明によれば、足の踏込み操作により前後進
切換え、変速操作が行えるので、レバー操作に比
べ、これらの操作中も、ハンドルから手を離すこ
とがないので、安全運転が確保できる。<Effects of the Invention> According to the present invention, forward/reverse switching and gear shifting operations can be performed by pressing the foot down, so compared to lever operations, the driver does not have to take his hands off the steering wheel during these operations, which improves safe driving. Can be secured.
図面は本発明の実施例を示し、第１図は第１実
施例の全体側面図、第２図は伝動ケース内部の立
面断面図、第３図は操作機構を併せて示した第２
図Ａ−Ａ矢示図、第４図は第２図Ｂ−Ｂ矢示図、
第５図は操作機構の正面図、第６図は第２図Ｃ−
Ｃ矢示図である。
１０……操作機構、１４……無段変速機構、１
５……前後進切換機構、５９，６８……連結手
段、４６……シフタ、５０……シフトフオーク。
The drawings show embodiments of the present invention; FIG. 1 is an overall side view of the first embodiment, FIG. 2 is an elevational sectional view of the inside of the transmission case, and FIG. 3 is a second embodiment showing the operating mechanism.
Figure A-A arrow diagram, Figure 4 is Figure 2 B-B arrow diagram,
Figure 5 is a front view of the operating mechanism, Figure 6 is Figure 2C-
It is a C arrow diagram. 10...Operating mechanism, 14...Continuously variable transmission mechanism, 1
5... Forward/forward switching mechanism, 59, 68... Connection means, 46... Shifter, 50... Shift fork.
Claims (1)
最高回転数まで無段階に変速される無段変速機構
の出力軸に、シフトフオークの往復動で歯車噛合
を切換えて車輌の前・後進を選択する前後進切換
機構が連結されて成る機械式前後進無段変速装置
の変速並びに前後進切換を操作する操作機構にお
いて、 前記車輌の巾方向の横軸心を有するペダル軸
と、該ペダル軸に回動自在に設けられて該ペダル
軸の前後に踏面部を有するペダルと、該ペダルの
一側方に車輌の前後方向の横軸心を有する回転自
在な回動軸と、該回動軸から前記ペダルの前後の
踏面部下方に向つて突出した前後一対のアームと
を有し、前記ペダルを踏み込まない中立位置にお
いて該各アームと前後の踏面部下面との間に所定
のスキマが形成され、かつ、前記ペダルとシフト
フオークとが連結手段で連動連結され、前記回動
軸とシフタとが連動手段で連動連結されているこ
とを特徴とする機械式前後進無段変速装置の操作
機構。[Scope of Claims] 1. A vehicle is driven by changing gear engagement by reciprocating a shift fork on the output shaft of a continuously variable transmission mechanism in which the rotational speed in one direction is steplessly changed from zero to a maximum rotational speed by reciprocating a shifter. In the operation mechanism for operating the gear change and forward/reverse switching of a mechanical forward/reverse continuously variable transmission device which is connected to a forward/reverse switching mechanism for selecting forward/backward movement of the vehicle, the pedal shaft has a horizontal axis in the width direction of the vehicle. a pedal that is rotatably provided on the pedal shaft and has a tread portion on the front and rear sides of the pedal shaft; and a rotatable pivot shaft that has a horizontal axis in the longitudinal direction of the vehicle on one side of the pedal. , a pair of front and rear arms protruding from the rotation axis toward the lower surface of the front and rear treads of the pedal, and a predetermined position between each arm and the lower surface of the front and rear treads in a neutral position where the pedal is not depressed. A mechanical forward and backward continuously variable transmission characterized in that a gap is formed, the pedal and the shift fork are interlocked and connected by a connecting means, and the rotation shaft and the shifter are interlocked and connected by an interlocking means. Operating mechanism of the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6450784A JPS60208667A (en) | 1984-03-30 | 1984-03-30 | Operating mechanism for mechanical advance/retreat type continuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6450784A JPS60208667A (en) | 1984-03-30 | 1984-03-30 | Operating mechanism for mechanical advance/retreat type continuously variable transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60208667A JPS60208667A (en) | 1985-10-21 |
| JPH0228750B2 true JPH0228750B2 (en) | 1990-06-26 |
Family
ID=13260178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6450784A Granted JPS60208667A (en) | 1984-03-30 | 1984-03-30 | Operating mechanism for mechanical advance/retreat type continuously variable transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60208667A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0298022U (en) * | 1989-10-09 | 1990-08-03 | ||
| JPH0298024U (en) * | 1989-10-09 | 1990-08-03 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5231128B2 (en) * | 1973-03-13 | 1977-08-12 | ||
| JPS556651A (en) * | 1978-06-30 | 1980-01-18 | Iseki & Co Ltd | Stepless speed change driving gear of farm machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS551955Y2 (en) * | 1975-08-27 | 1980-01-19 |
-
1984
- 1984-03-30 JP JP6450784A patent/JPS60208667A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5231128B2 (en) * | 1973-03-13 | 1977-08-12 | ||
| JPS556651A (en) * | 1978-06-30 | 1980-01-18 | Iseki & Co Ltd | Stepless speed change driving gear of farm machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60208667A (en) | 1985-10-21 |
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