JPH01220013A - Gear shift lever device for hydraulic non-stage transmission - Google Patents
Gear shift lever device for hydraulic non-stage transmissionInfo
- Publication number
- JPH01220013A JPH01220013A JP4691888A JP4691888A JPH01220013A JP H01220013 A JPH01220013 A JP H01220013A JP 4691888 A JP4691888 A JP 4691888A JP 4691888 A JP4691888 A JP 4691888A JP H01220013 A JPH01220013 A JP H01220013A
- Authority
- JP
- Japan
- Prior art keywords
- shift lever
- groove
- gear shift
- lever
- neutral
- 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
Landscapes
- Control Of Fluid Gearings (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、主として乗用芝刈機に用い、該芝刈機の走行
用油圧無段変速機に正転と逆転とを連続的に行なわせて
、該芝刈機の前進と後退とを可変操作する変速レバー装
置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is mainly used for riding lawn mowers, in which a continuously variable hydraulic transmission for driving the lawn mower continuously rotates forward and reverse. The present invention relates to a speed change lever device that variably operates the forward and backward movement of the lawnmower.
（従来の技術）
従来この種の変速レバー装置は、変速レバーと該変速レ
バーが案内されるレバーガイドパネルとを有し、該レバ
ーガイドパネルに、ニュートラル用溝部と、該ニュート
ラル用溝部を挾んでその両側に平行線上で反対側に延び
る前進用溝部と後退用溝部とを有する該変速レバーの操
作用案内溝を設けると共に、該変速レバーにニュートラ
ル用溝゛部に復帰させる両溝部に平行な復帰力を付加す
るようにし、なおかつ、任意の速度で定速走行し得るよ
うに、該レバーが前進又は後退用溝部内で前記復帰力に
打勝って任意の位置で半固定されるように抵抗部材を配
設するか、あるいは、係止部材（米国特許４，６２０．
５７５号公報）を設けるようにしている。(Prior Art) Conventionally, this type of shift lever device has a shift lever and a lever guide panel in which the shift lever is guided, and the lever guide panel has a neutral groove portion and a neutral groove portion sandwiched therebetween. A guide groove for operating the gear shift lever is provided on both sides of the gear lever, which has a forward groove and a reverse groove extending in opposite directions on parallel lines, and a return parallel to both grooves allows the gear lever to return to the neutral groove. a resistance member so that the lever can overcome the return force and be semi-fixed at any position within the forward or backward groove so that the lever can apply a force and can travel at a constant speed at any speed; Alternatively, a locking member (U.S. Pat. No. 4,620.
575 Publication).
（発明が解決するための課題）
上記従来の技術によれば、変速レバー装置に抵抗部材や
係止部材を設ける必要があるため、その分部品点数が増
大すると共に、変速レバーの操作力が大きくなり操作性
を低下させることとなっていた。(Problems to be Solved by the Invention) According to the above conventional technology, it is necessary to provide a resistance member and a locking member in the gear shift lever device, which increases the number of parts and increases the operating force of the gear shift lever. This resulted in a decrease in operability.
本発明は、変速レバーを前進又は後退用溝部内の任意の
位置に半固定することが簡易な構造で達成でき、かつ操
作力を低減して操作性を向上する油圧無段変速機の変速
レバー装置を提供することをその目的とする。The present invention provides a shift lever for a hydraulic continuously variable transmission that can semi-fix the shift lever at any position within a forward or reverse groove with a simple structure, reduces operating force, and improves operability. Its purpose is to provide equipment.
（課題を解決するための手段）
本発明は上記目的を達成すべく、車両に搭載した油圧無
段変速機に正転と逆転とを連続的に行なわせる可変速用
の変速レバー装置であって、該変速レバー装置を、変速
レバーと該変速レバーが挿通されこれに略直交するレバ
ーガイドパネルとを有し、該レバーガイドパネルにニュ
ートラル用溝部と、該ニュートラル用溝部を挾んでその
両側にそれぞれ延びる正転用溝部と逆転用溝部とを有す
る該変速レバーの操作用案内溝を設けると共に、該変速
レバーにニュートラル用溝部への復帰力を付加したもの
において、該変速レバーに、該変速レバーを復帰方向に
対し略直交する方向に付勢するスプリングを設け、前記
正転用溝部と逆転用溝部とを、該復帰力と該付勢力との
溝方向の分力が略均合うようにそれぞれ付勢力方向に傾
けて形成したことを特徴とする。(Means for Solving the Problems) In order to achieve the above object, the present invention is a variable speed shift lever device that allows a hydraulic continuously variable transmission mounted on a vehicle to continuously perform forward rotation and reverse rotation. , the shift lever device includes a shift lever and a lever guide panel through which the shift lever is inserted and substantially perpendicular to the shift lever; a neutral groove in the lever guide panel; and a neutral groove on both sides of the neutral groove. A guide groove for operating the shift lever having an extending forward rotation groove and a reverse rotation groove is provided, and a return force to the neutral groove is added to the shift lever, and the shift lever is returned to the neutral groove. A spring that biases in a direction substantially perpendicular to the direction is provided, and the forward rotation groove portion and the reverse rotation groove portion are biased in the direction of the biasing force so that the components of the return force and the biasing force in the groove direction are approximately equal. It is characterized by being formed at an angle.
（作 用）
変速レバーが正転又は逆転用溝部内にある場合、該変速
レバーは復帰力と付勢力との合力に対応する摩擦力を受
ける。したがって、該変速レバーは、前記溝部内の任意
の位置で半固定され、かつ、該摩擦力に抗するだけの力
で移動することができる。(Function) When the speed change lever is in the forward rotation or reverse rotation groove, the speed change lever receives a frictional force corresponding to the resultant force of the return force and the urging force. Therefore, the speed change lever is semi-fixed at any position within the groove, and can be moved with just enough force to resist the frictional force.
また、該両溝部の内側面を摩擦面として利用することに
より変速レバーに設けたコイルスプリングだけで該レバ
ーの半固定を達成することができる。Furthermore, by using the inner surfaces of both grooves as friction surfaces, it is possible to semi-fix the lever using only the coil spring provided on the gear shift lever.
（実施例）
本発明を乗用芝刈機の走行用変速レバーに実施した場合
について説明する。(Example) A case will be described in which the present invention is applied to a traveling speed change lever of a riding lawn mower.
第１図及び第２図を参照して、（１）は乗用芝刈機、（
２）は該芝刈機（１）の座席（３）側部に設けた走行用
の変速レバー装置を示し、該変速レバー装置（２）は、
リンク機構（４）を介して斜板式可変容量油圧ポンプモ
ータで構成される油圧無段変速機（５）に連結され、該
油圧無段変速機（５）に正転と逆転とを連続的に行なわ
せて、該芝刈機（１）の前進と後退とを可変操作するよ
うにしている。With reference to FIGS. 1 and 2, (1) is a riding lawn mower, (
2) shows a speed change lever device for driving provided on the side of the seat (3) of the lawn mower (1), and the speed change lever device (2) is
It is connected to a hydraulic continuously variable transmission (5) composed of a swash plate type variable displacement hydraulic pump motor through a link mechanism (4), and the hydraulic continuously variable transmission (5) continuously rotates forward and reverse rotation. As a result, the forward and backward movement of the lawn mower (1) is variably controlled.
変速レバー装置（２）は、第３図に示すように変速レバ
ー（６）と該変速レバー（６）が挿通されこれに略直交
するレバーガイドパネル（７）とを有し、該レバーガイ
ドパネル（７）に、左右方向に長いニュートラル用溝部
（８）と、該ニュートラル用溝部（８）を挾んでその両
端からそれぞれ前後方向（図中矢示Ａ方向）に延びる正
転用溝部たる前進用溝部（９）と逆転溝部たる後退用溝
部（ＩＯとを有する変速レバー（６）の操作用案内溝（
Ｉ′Ｄが形成され、該変速レバー（６）が該ニュートラ
ル用溝部（８）から該前進用溝部（９）又は該後退用溝
部（ＩＧの先端に移動するに従って前記リンク機構（４
）を介して前記油圧無段変速機（５）の斜板の角度を可
変させ増速するように構成している。As shown in FIG. 3, the speed change lever device (2) includes a speed change lever (6) and a lever guide panel (7) through which the speed change lever (6) is inserted and which is substantially orthogonal thereto. (7) includes a neutral groove (8) that is long in the left-right direction, and a forward groove (8) that is a forward rotation groove that sandwiches the neutral groove (8) and extends from both ends of the neutral groove (8) in the front-rear direction (in the direction of arrow A in the figure). 9) and a reverse groove (IO) as a reverse groove.
I'D is formed, and as the shift lever (6) moves from the neutral groove (8) to the forward groove (9) or the backward groove (IG), the link mechanism (4
), the angle of the swash plate of the hydraulic continuously variable transmission (5) is varied to increase speed.
変速レバー（６）は、リンク機構（４）のロッド■に巻
設した復帰用コイルスプリングａ３により常にニュート
ラル用溝部（８）に復帰するように前後方向に付勢され
ると共に、第４図に示すように該変速レバー（６）の支
承基部（６ａ）に設けたねじりスプリング（ｌ＠により
左右方向外方（図中矢示Ｂ方向）へ付勢され、前進用及
び後退用溝部（９） （１０内に位置している場合には
常に上記Ａ方向の復帰力とＢ方向への付勢力を受ける。The gear shift lever (6) is biased in the longitudinal direction so as to always return to the neutral groove (8) by a return coil spring a3 wound around the rod (■) of the link mechanism (4). As shown, the gear lever (6) is biased outward in the left-right direction (direction of arrow B in the figure) by a torsion spring (l@) provided at the support base (6a) of the gear shift lever (6), and the forward and reverse grooves (9) ( 10, it always receives the above-mentioned return force in the A direction and biasing force in the B direction.
前進用溝部（９）と後退用溝部（ＩＧとは、その前後方
向先端をＢ方向、すなわち前記付勢力方向に幾分傾けて
形成され、前記復帰力と付勢力との溝方向の分力が略均
合うようにしている。一方、ニュートラル用溝部（８）
には、Ｂ方向の端部に変速レバー（６）の特機部（８ａ
）が形成され、該ニュートラル用溝部（８）内の変速レ
バー（６）は上記付勢力により常に該特機部（８ａ）に
復帰するようにしている。The forward groove portion (9) and the backward groove portion (IG) are formed by tilting their front and rear ends somewhat in the B direction, that is, in the direction of the biasing force, so that the component of the return force and the biasing force in the groove direction is It is made to be approximately even.On the other hand, the neutral groove (8)
, there is a special part (8a) of the gear shift lever (6) at the end in the B direction.
) is formed, and the shift lever (6) in the neutral groove (8) is always returned to the special gear part (8a) by the biasing force.
以上の構成によれば、変速レバー（６）は、それが前進
用溝部（９）あるいは後退用溝部ＧＯ内にある場合、常
に前記復帰力と前記付勢力とを受け、その溝方向分力に
より略均合状態になると共に、溝方向に対し直交する方
向の復帰力と付勢力との合力により溝側壁に埋し付けら
れその摩擦力により任意の位置で半固定状態となる。一
方、該変速レバー（６）の移動操作は、該摩擦力に打ち
勝つ操作力で十分であり、比較的容易に操作できると共
に微調節も可能になる。According to the above configuration, when the gear shift lever (6) is in the forward groove (9) or the backward groove GO, the gear shift lever (6) always receives the return force and the biasing force, and the component force in the groove direction It becomes approximately balanced, and is embedded in the groove side wall due to the resultant force of the return force in the direction perpendicular to the groove direction and the urging force, and becomes semi-fixed at any position due to the frictional force. On the other hand, the shift lever (6) can be moved with sufficient operating force to overcome the frictional force, and can be operated relatively easily and finely adjusted.
第２図中（ＩＳｌはプレーキペタルを示し、該ブレーキ
ワイヤ（＋５）には左右のブレーキに連結されるブレー
キワイヤ（ＩＯ（ＩＧが接続されると共に、該プレーキ
ペタル（ＩＳｌの操作により前記油圧無段変速機（５）
をニュートラル状態に復帰させる中立復帰装置（１７）
が接続され、該プレーキペタルａ９を踏込むことにより
該中立復帰装置ａ力の復帰片０３がストッパーピン（＋
９） （＋りを介して前記リンク機構（４）のアーム■
を該アーム■の枢軸（２０ａ）を中心に前後方向に揺動
させる。そして、該アーム■は前記油圧無断変速機（５
）の駆動軸（５ａ）に固定されたアーム■と、操作レバ
ー（６）の枢軸■に固定されたアーム■とを、それぞれ
前記ロッド■と連結ロッドＱ＠とを介して揺動させ、油
圧無段変速機（５）及び操作レバー（６）をニュートラ
ル状態に復帰させる。In Fig. 2 (ISl indicates the brake pedal, the brake wire (+5) is connected to the brake wire (IO (IG) connected to the left and right brakes, and the brake pedal (ISl) is operated to remove the hydraulic pressure. Gear transmission (5)
Neutral return device (17) that returns the to the neutral state
is connected, and by stepping on the brake pedal a9, the neutral return device a force return piece 03 is connected to the stopper pin (+
9) (The arm of the link mechanism (4)
is swung back and forth around the pivot (20a) of arm (2). The arm (2) is connected to the hydraulic continuously variable transmission (5).
) and the arm ■ fixed to the pivot shaft (6) of the operating lever (6) are respectively swung via the rod ■ and the connecting rod Q@, and the hydraulic The continuously variable transmission (5) and the control lever (6) are returned to the neutral state.
なお、レバーガイドパネル（７′）には、前進用溝部（
９）及び後退用溝部ａＯに添って速度を明示する口盛り
を設けるようにしてもよい。In addition, the lever guide panel (7') has a forward groove (
9) and a protrusion that clearly indicates the speed may be provided along the retreating groove aO.
（発明の効果）
以上のように本発明によれば、変速レバーに、その復帰
力に加え該復帰力方向に直交する方向の付勢力を加え、
かつ、操作用案内溝の正転用溝部と逆転用溝部とを該付
勢力方向に傾けて形成することにより、簡易な構造で該
変速レバーを半固定状態に維持することができ、従来の
ものに比して部品点数を削減できると共に、操作力を低
減して操作性の向上を図り得る効果を有する。(Effects of the Invention) As described above, according to the present invention, in addition to the return force of the gear shift lever, a biasing force in a direction perpendicular to the direction of the return force is applied to the gear shift lever,
In addition, by forming the forward rotation groove and the reverse rotation groove of the operation guide groove so as to be inclined in the direction of the biasing force, the shift lever can be maintained in a semi-fixed state with a simple structure, which is different from the conventional one. In comparison, the number of parts can be reduced, and the operating force can be reduced to improve operability.
第１図は本発明を実施した乗用芝刈機の側面図、第２図
は本発明の１実施例である変速レバー装置廻りの斜視図
、第３図は操作パネル廻りの平面図、第４図は変速レバ
ーの基部を表わした拡大斜視図である。
（１）・・・乗用芝刈機 （２）・・・変速レバー
装置（５）・・・油圧無段変速機 （６）・・・変速レ
バー（Ｄ・・・レバーガイドパネル
（８）・・・ニュートラル溝部
（９）・・・前進用溝部 ＧＯ・・・後退用溝部
ＣＩｔ）・・・操作用案内溝 １１の・・・ねじり
スプリング−〇２−Fig. 1 is a side view of a riding lawn mower embodying the present invention, Fig. 2 is a perspective view of the area around the gear shift lever device which is an embodiment of the invention, Fig. 3 is a plan view of the area around the operation panel, and Fig. 4 FIG. 2 is an enlarged perspective view showing the base of the gear shift lever. (1)... Riding lawn mower (2)... Speed lever device (5)... Hydraulic continuously variable transmission (6)... Speed change lever (D... Lever guide panel (8)...・Neutral groove (9)...Forward groove GO...Backward groove CIt)...Operation guide groove 11...Torsion spring -〇2-
Claims (1)
に行なわせる可変速用の変速レバー装置であって、該変
速レバー装置を、変速レバーと該変速レバーが挿通され
これに略直交するレバーガイドパネルとを有し、該レバ
ーガイドパネルにニュートラル用溝部と、該ニュートラ
ル用溝部に連なりこれを挾んでその両側にそれぞれ延び
る正転用溝部と逆転用溝部とを有する該変速レバーの操
作用案内溝を設けると共に、該変速レバーにニュートラ
ル用溝部への復帰力を付加したものにおいて、該変速レ
バーに、該変速レバーを復帰方向に対し略直交する方向
に付勢するスプリングを設け、前記正転用溝部と逆転用
溝部とを、該復帰力と該付勢力との溝方向の分力が略均
合うようにそれぞれ付勢力方向に傾けて形成したことを
特徴とする油圧無段変速機の変速レバー装置。A shift lever device for variable speed that allows a hydraulic continuously variable transmission mounted on a vehicle to continuously perform forward and reverse rotation, the shift lever device having a shift lever and a shift lever inserted through the shift lever device. Operation of the shift lever, which has a lever guide panel orthogonal to each other, and has a neutral groove in the lever guide panel, and a forward rotation groove and a reverse rotation groove that are connected to the neutral groove and extend on both sides of the neutral groove, respectively. A gear shift lever is provided with a guide groove and a return force to the neutral groove is added to the gear shift lever, and the gear shift lever is provided with a spring that biases the gear shift lever in a direction substantially perpendicular to the return direction. A hydraulic continuously variable transmission characterized in that the forward rotation groove and the reverse rotation groove are formed so as to be inclined in the direction of the biasing force so that the components of the return force and the biasing force in the groove direction are approximately equal. Gear shift lever device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4691888A JPH01220013A (en) | 1988-02-29 | 1988-02-29 | Gear shift lever device for hydraulic non-stage transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4691888A JPH01220013A (en) | 1988-02-29 | 1988-02-29 | Gear shift lever device for hydraulic non-stage transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01220013A true JPH01220013A (en) | 1989-09-01 |
Family
ID=12760717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4691888A Pending JPH01220013A (en) | 1988-02-29 | 1988-02-29 | Gear shift lever device for hydraulic non-stage transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01220013A (en) |
-
1988
- 1988-02-29 JP JP4691888A patent/JPH01220013A/en active Pending
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