JPH1071961A - Operating device for hydraulic transmission vehicle - Google Patents
Operating device for hydraulic transmission vehicleInfo
- Publication number
- JPH1071961A JPH1071961A JP33737396A JP33737396A JPH1071961A JP H1071961 A JPH1071961 A JP H1071961A JP 33737396 A JP33737396 A JP 33737396A JP 33737396 A JP33737396 A JP 33737396A JP H1071961 A JPH1071961 A JP H1071961A
- Authority
- JP
- Japan
- Prior art keywords
- lever shaft
- turning handle
- traveling
- traveling lever
- turning
- 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.)
- Granted
Links
Landscapes
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、車輪やクローラか
らなる左右の走行装置をそれぞれ別の油圧変速装置で駆
動し、左右の走行装置の走行方向と走行速度を各別に変
えることで旋回する油圧駆動車の操縦装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydraulic system which turns left and right traveling devices, each of which comprises a wheel and a crawler, by different hydraulic transmissions, and changes the traveling direction and traveling speed of the left and right traveling devices. The present invention relates to a driving device for a driving vehicle.
【０００２】[0002]
【従来の技術】油圧駆動車の操縦装置は、一般的に左右
の油圧変速装置を共に前進や後進側へ変速する走行速度
調節レバーと、左右の油圧変速装置の速度を別々に変え
て旋回方向を変更する旋回ハンドルとを別々に設けた構
成である。また、特殊な操縦装置として左右の油圧変速
装置をそれぞれ変速する別々の左右変速レバーを設け、
この左右変速レバーの回動角度を変えることで、前後進
及び旋回方向の変更制御を行って操縦するものがある。2. Description of the Related Art Generally, a steering device of a hydraulically driven vehicle is provided with a traveling speed control lever for shifting both left and right hydraulic transmissions forward or backward, and a turning direction by separately changing the speeds of the left and right hydraulic transmissions. And a turning handle for changing the angle is provided separately. In addition, separate left and right shift levers for shifting the left and right hydraulic transmissions as special control devices are provided,
In some cases, by changing the rotation angle of the left / right shift lever, forward / backward and turning direction change control is performed.
【０００３】[0003]
【発明が解決しようとする課題】前記の走行速度調節レ
バーと旋回ハンドルを別々に設けた構成は、旋回するに
は走行速度調節レバーで走行速度を低速にしながら旋回
ハンドルを回動操作しなければならず、操作が煩雑で、
油圧駆動車が歩行型の運搬車の場合には、歩きながら走
行速度調節レバーと旋回ハンドルを操作をすることにな
り、操作を滑らかに行い難い。また、油圧変速装置は負
荷によって変速比率が変動するため左右の走行装置を同
一速度で回転させる直進が行い難い。さらに、別々に左
右変速レバーを設けた構成は、左右変速レバーの傾け程
度によって旋回半径が異ってきて思った通りの旋回を行
うのが困難である等の難点がある。そこで、本発明で
は、前記の従来における油圧駆動車における操縦装置で
の直進や旋回操作が難しい点を解決することを課題とす
る。In the configuration in which the traveling speed adjusting lever and the turning handle are separately provided, the turning must be performed by turning the turning handle while lowering the traveling speed with the traveling speed adjusting lever. Operation is complicated,
When the hydraulically driven vehicle is a walking-type carrier, the traveling speed adjustment lever and the turning handle must be operated while walking, which makes it difficult to smoothly operate the vehicle. In addition, since the speed change ratio of the hydraulic transmission varies depending on the load, it is difficult to perform the straight traveling in which the left and right traveling devices rotate at the same speed. Further, the configuration in which the left and right shift levers are separately provided has a drawback that the turning radius varies depending on the degree of inclination of the left and right shift levers, making it difficult to turn as expected. In view of the above, an object of the present invention is to solve the above-described problem that it is difficult to perform a straight-ahead or turning operation with a steering device in a conventional hydraulically driven vehicle.
【０００４】[0004]
【課題を解決するための手段】左右の走行装置１，２の
回転方向と回転速度をそれぞれ油圧変速機３，４で変え
る油圧駆動車において、操作盤５上に立設した走行レバ
ー軸６を前後に傾動可能にすると共にこの走行レバー軸
６に対して側方へ張り出す旋回ハンドル７を該走行レバ
ー軸６へ左右回動可能に設け、走行レバー軸６の前後傾
動で前後進の速度変更を行い、旋回ハンドル７の左右回
動で旋回方向の変更を行うように旋回ハンドル７と前記
左右の油圧変速機３，４とを連動機構Ａで連動してなる
油圧駆動車の操縦装置とした。SUMMARY OF THE INVENTION In a hydraulically driven vehicle in which the rotational directions and rotational speeds of left and right traveling devices 1 and 2 are changed by hydraulic transmissions 3 and 4, respectively, a traveling lever shaft 6 erected on an operation panel 5 is provided. A turning handle 7 is provided on the traveling lever shaft 6 so as to be capable of tilting forward and backward and projecting sideways with respect to the traveling lever shaft 6. And a steering device for a hydraulically driven vehicle in which the turning handle 7 and the left and right hydraulic transmissions 3 and 4 are interlocked by an interlocking mechanism A such that the turning direction is changed by turning the turning handle 7 left and right. .
【０００５】[0005]
【発明の作用及び効果】前記構成によれば、車体を前進
させるには走行レバー軸６を前方へ傾ければよく傾きを
大きくするに従って直進走行速度が速くなる。後進させ
る場合には走行レバー軸６を後方へ傾けていけばよい。
車体を旋回させる場合には、旋回ハンドル７を左右に回
動させれば回動した方向へ旋回することになる。旋回ハ
ンドル７は走行レバー軸６に一体的に前後回動するよう
設けているので、走行速度の変更と旋回操作が、片手で
旋回ハンドルを持って行えるため、歩行しながらの操縦
操作であっても容易である。なお、この構成で旋回ハン
ドル７を車体が旋回しない中立位置に戻るように付勢す
れば、旋回が終了した際に旋回ハンドル７を手放すだけ
で車体が直進状態に戻ることになる。また、走行レバー
軸６を高速前進或いは高速後進に傾けたままで旋回ハン
ドル７を回動操作すると走行レバー軸６が低速側へ強制
的に戻るようにすれば高速走行のままで旋回する危険を
回避できて安全である。さらに、左右の油圧変速機３，
４と旋回ハンドル７の連動機構Ａに油圧変速機３，４の
変速レバー６０，６１の回動角度と走行レバー軸６の回
動角度の連動状態を変更調整するストローク調整手段Ｂ
と、走行レバー軸６の前後回動に対する左右の油圧変速
機３，４の前後進駆動開始位置を調整する左右同期調整
手段Ｃを設けると、走行レバー軸６を前後に傾けて前進
或いは後進する場合の直進調整が容易になる。According to the above construction, in order to advance the vehicle body, it is sufficient to incline the traveling lever shaft 6 forward, and the straight traveling speed increases as the inclination increases. When the vehicle is to be moved backward, the traveling lever shaft 6 may be tilted backward.
When turning the vehicle body, if the turning handle 7 is turned left and right, the vehicle turns in the turned direction. Since the turning handle 7 is provided so as to rotate back and forth integrally with the traveling lever shaft 6, the traveling speed can be changed and the turning operation can be performed with one hand while holding the turning handle. Is also easy. If the turning handle 7 is urged to return to the neutral position where the vehicle body does not turn in this configuration, the vehicle body returns to the straight running state only by releasing the turning handle 7 when the turning is completed. Further, when the turning handle 7 is rotated while the traveling lever shaft 6 is tilted at a high speed forward or at a high speed backward, the danger that the traveling lever shaft 6 is forced to return to a low speed side to avoid turning at a high speed is avoided. It is safe to do. Furthermore, the left and right hydraulic transmissions 3,
A stroke adjusting means B for changing and adjusting the interlocking state of the turning angles of the shift levers 60 and 61 of the hydraulic transmissions 3 and 4 and the turning angle of the traveling lever shaft 6 with an interlocking mechanism A of the turning handle 7 and the turning handle 7.
When the right and left hydraulic transmissions 3 and 4 are provided with a left-right synchronization adjustment means C for adjusting the forward / backward drive start position of the left and right hydraulic transmissions 3 and 4 with respect to the forward / backward rotation of the traveling lever shaft 6, the traveling lever shaft 6 is inclined forward and backward to advance or reverse. In this case, straight-ahead adjustment is facilitated.
【０００６】[0006]
【実施例】次に、本発明の実施例を図面を参照しながら
説明する。本発明を実施した歩行型油圧駆動運搬車は、
図１に示す如く、クローラからなる左右の走行装置１，
２を具備した車体１０の前側に荷台１１を搭載し、後側
に原動機１２を搭載した原動枠１３を設けている。原動
枠１３は原動機１２の左右を囲むパイプ状のフレーム１
４と原動機１２の上部を覆う板体１５とで構成してい
る。板体１５の上面が操作盤５となり、左右中央に走行
レバー軸６を前後に傾動するように立設し、この走行レ
バー軸６の右側に走行クラッチレバー１６を前後に傾動
するように設けている。走行レバー軸６には旋回ハンド
ル７を左右回動するように設けている。Next, embodiments of the present invention will be described with reference to the drawings. The walk-type hydraulically-driven transport vehicle embodying the present invention is:
As shown in FIG. 1, a left and right traveling device 1 comprising a crawler
2 is provided with a carrier 11 mounted on the front side of a vehicle body 10 equipped with a motor 2 and a motor frame 13 mounted with a motor 12 on the rear side. The driving frame 13 is a pipe-shaped frame 1 that surrounds the left and right of the motor 12.
4 and a plate 15 that covers the upper part of the motor 12. The upper surface of the plate body 15 serves as the operation panel 5, and the traveling lever shaft 6 is provided upright at the center in the left and right directions to tilt forward and backward, and the traveling clutch lever 16 is provided on the right side of the traveling lever shaft 6 so as to tilt forward and backward. I have. A turning handle 7 is provided on the traveling lever shaft 6 so as to turn left and right.
【０００７】１７は原動枠１３の後方へループ状に張り
出すハンドル枠、１８は車体１０の後退時に作業者の腹
部が当たると走行クラッチを切って停止する安全ガード
である。原動機１２の後側には、原動機１２に固定した
支持フレーム１９に荷台１１をダンプするための油圧ポ
ンプ２０を取付け、原動機１２の出力軸に取付けた原動
プーリ２１と油圧ポンプ２０の入力軸に取り付けたプー
リ２２へベルト２３で駆動力を伝動している。Reference numeral 17 denotes a handle frame that projects in a loop behind the driving frame 13, and reference numeral 18 denotes a safety guard that stops the vehicle by turning off the traveling clutch when the abdomen of the operator comes into contact with the vehicle body 10 when it retreats. A hydraulic pump 20 for dumping the carrier 11 is mounted on a support frame 19 fixed to the prime mover 12 on the rear side of the prime mover 12, and is attached to a prime pulley 21 attached to an output shaft of the prime mover 12 and an input shaft of the hydraulic pump 20. The driving force is transmitted to the pulley 22 by the belt 23.
【０００８】車体１０の下部に取り付けたトランスミッ
ションケース２４の左右両側部には、油圧変速機（ＨＳ
Ｔ）３，４を取付け、この油圧変速機３，４の入力軸に
取付けたプーリ２５と中継プーリ２６及び原動プーリ２
１との間にはベルト２７，２８をそれぞれ巻き掛けてク
ラッチプーリ２９で動力の断続を行い、前記走行クラッ
チレバー１６とクラッチプーリ２９をワイヤーで連結し
ている。原動枠１３の上部で走行レバー軸６の取付部
は、図２に示す如く構成している。 原動枠１３の左右
から中央に向けて同一軸心で、支軸３０，３１を支持
し、その中央端部に半割状のカサ歯車３２，３３を回動
可能に嵌合している。このカサ歯車３２，３３のボス部
３４，３５にはアーム３６，３７を突設し、このアーム
３６，３７と油圧変速機３，４の変速アーム６０，６１
とロッド３８，３９で連結して連動機構を構成してい
る。一方のカサ歯車３２のボス部３４にはＬ字状に曲が
ったブラケット４０を下側に突設している。A hydraulic transmission (HS) is provided on both left and right sides of a transmission case 24 attached to a lower portion of the vehicle body 10.
T) The pulley 25, the relay pulley 26, and the driving pulley 2 attached to the input shafts of the hydraulic transmissions 3, 4
The belt 27 and the belt 28 are wound around between them, respectively, and the power is interrupted by a clutch pulley 29, and the traveling clutch lever 16 and the clutch pulley 29 are connected by a wire. The mounting portion of the traveling lever shaft 6 above the driving frame 13 is configured as shown in FIG. Support shafts 30, 31 are supported on the same axis from the left and right sides of the driving frame 13 toward the center, and half-shaped bevel gears 32, 33 are rotatably fitted to the center ends thereof. Arms 36 and 37 are protruded from the boss portions 34 and 35 of the bevel gears 32 and 33, and the shifting arms 60 and 61 of the hydraulic transmissions 3 and 4 are provided.
And rods 38 and 39 to form an interlocking mechanism. An L-shaped bracket 40 projects downward from the boss portion 34 of one of the bevel gears 32.
【０００９】両カサ歯車３２，３３に上方から別のカサ
歯車４１を噛み合わせていて、このカサ歯車４１を枢支
する走行レバー軸６を前記ブラケット４０にボルト４２
で立設している。このカサ歯車４１のボス部４３を長く
形成し操作盤５に設けた前後に長い長穴４４から上方へ
突出させ、このボス部４３にループ状の旋回ハンドル７
を後方へ向けて突設している。カサ歯車４１を貫通した
走行レバー軸６の上端には握り４５を設けているが、こ
の握り４５は必ずしも必要なく、ボス部４３から突出さ
せなくてもよい。なぜなら走行レバー軸６の前後回動
は、旋回ハンドル７を持って行うこともできるからであ
る。Another bevel gear 41 is engaged with the two bevel gears 32 and 33 from above, and the traveling lever shaft 6 for pivotally supporting the bevel gear 41 is bolted to the bracket 40 by bolts 42.
It is standing up. The boss portion 43 of the bevel gear 41 is formed to be long and protrudes upward from a front and rear long hole 44 provided on the operation panel 5.
Projecting rearward. A grip 45 is provided at the upper end of the traveling lever shaft 6 that penetrates the bevel gear 41, but the grip 45 is not always necessary and does not have to be projected from the boss 43. This is because the forward and backward rotation of the traveling lever shaft 6 can be performed by holding the turning handle 7.
【００１０】ブラケット４０には支軸４６を設け、後方
へ向けてアーム４７を枢支している。このアーム４７の
中間部にはカサ歯車３２，３３の半割端面４８，４９に
接当するローラ５０，５１を左右に設け、アーム４７の
先端に設けたピン５２とカサ歯車４１のボス部４３に設
けたピン５３との間にばね５４を張架して、ローラ５
０，５１をカサ歯車３２，３３の半割端面４８，４９に
接している。また、アーム４７のピン５２の回動範囲に
はストッパ５５を設けている。A support shaft 46 is provided on the bracket 40, and an arm 47 is pivotally supported rearward. In the middle of the arm 47, rollers 50 and 51 are provided on the left and right to contact the half-end surfaces 48 and 49 of the bevel gears 32 and 33, respectively. A pin 52 provided at the tip of the arm 47 and a boss 43 of the bevel gear 41 are provided. A spring 54 is stretched between a pin 53 provided on the
0 and 51 are in contact with the half-end surfaces 48 and 49 of the bevel gears 32 and 33. Further, a stopper 55 is provided in the rotation range of the pin 52 of the arm 47.
【００１１】このような構成であるので、走行レバー軸
６先端の握り４５あるいは旋回ハンドル７を持って走行
レバー軸６を前後方向へ傾けるとカサ歯車３２，３３が
同一方向へ回ってロッド３８，３９を介して油圧変速機
３，４の変速レバー６０，６１を回して走行装置１，２
が前進あるいは後進に駆動される。また、旋回ハンドル
７を左右に回すとカサ歯車３２，３３が互いに逆方向に
回されて左右の走行装置１，２が正逆回転をして旋回す
ることになるが、このとき走行レバー軸６が前方に倒さ
れていて、高速前進になっていると、一方のカサ歯車３
２，３３の半割端部４８，４９がローラ５０，５１の一
方を下方へ押し下げアーム４７が下方へ回動してピン５
２がストッパ５５に当り、走行レバー軸６が中立位置方
向へ戻されるようになり低速走行となる。つまり、高速
走行中に旋回操作を行うと走行が低速となって旋回する
ことになり急激な旋回が行われなく安全となる。With such a configuration, when the traveling lever shaft 6 is tilted in the front-rear direction by holding the grip 45 at the tip of the traveling lever shaft 6 or the turning handle 7, the bevel gears 32, 33 rotate in the same direction, and the rods 38, By turning the shift levers 60, 61 of the hydraulic transmissions 3, 4 via
Is driven forward or backward. When the turning handle 7 is turned left and right, the bevel gears 32 and 33 are turned in opposite directions, so that the left and right traveling devices 1 and 2 make forward and reverse rotations. Is tilted forward and is moving forward at high speed, one of the bevel gears 3
The half ends 48 and 49 of the rollers 2 and 33 push one of the rollers 50 and 51 downward, and the arm 47 pivots downward to rotate the pin 5.
2 hits the stopper 55, the traveling lever shaft 6 is returned toward the neutral position, and the vehicle travels at a low speed. In other words, if the turning operation is performed during high-speed running, the running speed becomes low and the vehicle turns, so that it is safe without sharp turning.
【００１２】図４は、走行レバー軸６と油圧変速機３，
４との連動機構Ａを示すもので、片側で説明すれば、カ
サ歯車３３のボス部３５に突設するアーム３７の先端部
６２をボルト６３とナット７１，７２で支軸３１からの
距離を変更可能にしてストローク調整手段Ｂとしてい
る。ロッド３９は、中間部に長さを調節するターンバッ
クル６４を設け、中継軸６５に枢支した中継アーム６６
の一端側にロッド３９の下端を連結している。中継アー
ム６６の他端側６７はＬ字状に屈曲し、先端の屈曲部に
長穴６８を設け、油圧変速機３の変速アーム６０に連結
する第２ロッド６９の端部を嵌合し、ボルト７０で長孔
６８内での可動範囲を規制するようにした左右調整手Ｃ
を構成している。FIG. 4 shows the traveling lever shaft 6 and the hydraulic transmission 3,
4 shows an interlocking mechanism A, which is described on one side. The distal end 62 of the arm 37 protruding from the boss 35 of the bevel gear 33 is moved from the support shaft 31 by a bolt 63 and nuts 71 and 72. Stroke adjusting means B is set to be changeable. The rod 39 is provided with a turnbuckle 64 for adjusting the length at an intermediate portion, and a relay arm 66 pivotally supported by a relay shaft 65.
Is connected to the lower end of a rod 39 at one end. The other end 67 of the relay arm 66 is bent in an L-shape, a long hole 68 is provided in the bent portion at the tip, and the end of the second rod 69 connected to the shift arm 60 of the hydraulic transmission 3 is fitted. Left and right adjusting hand C that regulates the movable range in long hole 68 with bolt 70
Is composed.
【００１３】走行レバー軸６を前後に傾けると、連動機
構Ａによって油圧変速機３，４の変速レバー６０，６１
が回動されて、左右が同速で回転して前進あるいは後進
するのであるが、もし、左右の走行装置３，４の駆動開
始が異っていた場合には、左右調整手段Ｃのボルト７０
を回して左右が同期するようにする。また、左右の走行
装置３，４の負荷が異っている場合には、ストローク調
整手段Ｂのナット７１，７２を回してロッド３９の支軸
３１からの距離を変えて左右の走行装置３，４が最高速
度で同じになるように調整する。When the traveling lever shaft 6 is tilted back and forth, the interlocking mechanism A causes the shift levers 60, 61 of the hydraulic transmissions 3, 4 to move.
Is rotated and the left and right are rotated at the same speed to move forward or backward. If the driving starts of the left and right traveling devices 3 and 4 are different, the bolt 70 of the left and right adjusting means C
Turn so that the left and right are synchronized. When the loads on the left and right traveling devices 3 and 4 are different, the nuts 71 and 72 of the stroke adjusting means B are turned to change the distance of the rod 39 from the support shaft 31 to change the left and right traveling devices 3 and 4. Adjust so that 4 is the same at maximum speed.
【図１】本発明実施例の一部側面図である。FIG. 1 is a partial side view of an embodiment of the present invention.
【図２】一部の拡大斜視図である。FIG. 2 is a partially enlarged perspective view.
【図３】一部の拡大側断面図である。FIG. 3 is a partially enlarged side sectional view.
【図４】一部の連動機構図である。FIG. 4 is a partial interlocking mechanism diagram.
１ 走行装置 ２ 走行装置 ３ 油圧変速機 ４ 油圧変速機 ５ 操作盤 ６ 走行レバー軸 ７ 旋回ハンドル ３７ アーム ３８ 連結ロッド ３９ 連結ロッド ６０ 変速レバー ６１ 変速レバー ６２ 変速レバー Ａ 連動機構 Ｂ ストローク調整手段 Ｃ 左右同期調整手段 DESCRIPTION OF SYMBOLS 1 Traveling device 2 Traveling device 3 Hydraulic transmission 4 Hydraulic transmission 5 Operation panel 6 Traveling lever shaft 7 Turning handle 37 Arm 38 Connecting rod 39 Connecting rod 60 Shifting lever 61 Shifting lever 62 Shifting lever A Interlocking mechanism B Stroke adjusting means C Left and right Synchronization adjustment means
───────────────────────────────────────────────────── フロントページの続き (72)発明者 井手 宣弘 愛媛県松山市衣山１丁目２番５号 株式会 社アテックス内 (72)発明者 仲田 利通 愛媛県松山市衣山１丁目２番５号 株式会 社アテックス内 (72)発明者 永井 浩昭 愛媛県松山市衣山１丁目２番５号 株式会 社アテックス内 (72)発明者 池田 智治 愛媛県松山市衣山１丁目２番５号 株式会 社アテックス内 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Nobuhiro Ide 1-2-5, Kinuyama, Matsuyama-shi, Ehime Inside Atex Corporation (72) Inventor Toshimichi Nakata 1-2-5, Kinuyama, Matsuyama-shi, Ehime Stock Company Inside Atex Corporation (72) Inventor Hiroaki Nagai 1-2-5, Kinuyama, Matsuyama-shi, Ehime Co., Ltd. Inside Atex Corporation (72) Inventor Tomoji Ikeda 1-2-5, Kinuyama, Matsuyama-shi, Ehime Co., Ltd.
Claims (5)
向と回転速度をそれぞれ油圧変速機（３），（４）で変
える油圧駆動車において、操作盤（５）上に立設した走
行レバー軸（６）を前後に傾動可能にすると共にこの走
行レバー軸（６）に対して側方へ張り出す旋回ハンドル
（７）を該走行レバー軸（６）へ左右回動可能に設け、
走行レバー軸（６）の前後傾動で前後進の速度変更を行
い、旋回ハンドル（７）の左右回動で旋回方向の変更を
行うように旋回ハンドル（７）と前記左右の油圧変速機
（３），（４）とを連動機構（Ａ）で連動してなる油圧
駆動車の操縦装置。1. A hydraulic drive vehicle in which the rotational directions and rotational speeds of left and right traveling devices (1) and (2) are changed by hydraulic transmissions (3) and (4), respectively, and are erected on an operation panel (5). The traveling lever shaft (6) can be tilted back and forth, and a turning handle (7) projecting sideways with respect to the traveling lever shaft (6) is provided on the traveling lever shaft (6) so as to be able to turn left and right. ,
The turning handle (7) and the left and right hydraulic transmissions (3) are configured such that the forward / backward speed is changed by tilting the traveling lever shaft (6) back and forth, and the turning direction is changed by turning the turning handle (7) left and right. And (4) are linked by an interlocking mechanism (A).
中立位置に戻るように付勢してなる請求項１に記載の油
圧駆動車の操縦装置2. The hydraulically operated vehicle control device according to claim 1, wherein the turning handle is biased to return to a neutral position where the vehicle body does not turn.
速後進に傾動したままで旋回ハンドル（７）を回動操作
すると走行レバー軸（６）が強制的に低速側へ戻るよう
にしてなる請求項１又は請求項２に記載の油圧駆動車の
操縦装置3. When the turning handle (7) is rotated while the traveling lever shaft (6) is tilted to move forward or backward at a high speed, the traveling lever shaft (6) is forcibly returned to the low speed side. The hydraulic drive vehicle steering device according to claim 1 or 2.
ハンドル（７）の連動機構（Ａ）に油圧変速機（３），
（４）の変速レバー（６０），（６１）の回動角度と走
行レバー軸（６）の回動角度の連動状態を変更調整する
ストローク調整手段（Ｂ）と、走行レバー軸（６）の前
後回動に対する左右の油圧変速機（３），（４）の前後
進駆動開始位置を調整する左右同期調整手段（Ｃ）を設
けてなる請求項１乃至請求項３に記載の油圧駆動車の操
縦装置。4. A hydraulic transmission (3), comprising an interlocking mechanism (A) of left and right hydraulic transmissions (3), (4) and a turning handle (7).
(4) a stroke adjusting means (B) for changing and adjusting the interlocking state between the rotation angles of the shift levers (60) and (61) and the rotation angle of the traveling lever shaft (6); The hydraulically driven vehicle according to any one of claims 1 to 3, further comprising left / right synchronization adjusting means (C) for adjusting a forward / backward driving start position of the left and right hydraulic transmissions (3) and (4) with respect to the forward / backward rotation. Pilot device.
（３８），（３９）に対して傾けたアーム（３７）の回
動中心からの連結距離を変更する手段で、左右同期調整
手段（Ｃ）が連動機構（Ａ）に設ける遊び量を調整する
手段で構成してなる請求項４に記載の油圧駆動車の操縦
装置。5. A stroke adjusting means (B) for changing a connecting distance from a rotation center of an arm (37) inclined with respect to the connecting rods (38) and (39). 5. The steering apparatus for a hydraulically driven vehicle according to claim 4, wherein the control means comprises means for adjusting an amount of play provided in the interlocking mechanism (A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33737396A JP3442244B2 (en) | 1996-06-28 | 1996-12-18 | Hydraulic drive vehicle steering system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18824396 | 1996-06-28 | ||
| JP8-188243 | 1996-06-28 | ||
| JP33737396A JP3442244B2 (en) | 1996-06-28 | 1996-12-18 | Hydraulic drive vehicle steering system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1071961A true JPH1071961A (en) | 1998-03-17 |
| JP3442244B2 JP3442244B2 (en) | 2003-09-02 |
Family
ID=26504802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33737396A Expired - Fee Related JP3442244B2 (en) | 1996-06-28 | 1996-12-18 | Hydraulic drive vehicle steering system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3442244B2 (en) |
-
1996
- 1996-12-18 JP JP33737396A patent/JP3442244B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3442244B2 (en) | 2003-09-02 |
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