JPH0657498B2 - Operation structure for traveling of work vehicle - Google Patents
Operation structure for traveling of work vehicleInfo
- Publication number
- JPH0657498B2 JPH0657498B2 JP63150656A JP15065688A JPH0657498B2 JP H0657498 B2 JPH0657498 B2 JP H0657498B2 JP 63150656 A JP63150656 A JP 63150656A JP 15065688 A JP15065688 A JP 15065688A JP H0657498 B2 JPH0657498 B2 JP H0657498B2
- Authority
- JP
- Japan
- Prior art keywords
- stopper
- traveling
- speed
- swing
- 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
Landscapes
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、走行用無段変速装置の操作部に連動させた変
速装置側部材を揺動自在に設けると共に減速側に付勢
し、前記変速装置側部材に接当して前記走行用無段変速
装置を設定速度状態に維持するストッパー、及び、この
ストッパーを前記変速装置側部材の揺動軸芯と平行また
はほぼ平行な別の軸芯の周りで揺動調節して前記走行用
無段変速装置を増減速操作すると共に前記ストッパーに
よる維持設定速度を変更する調速レバーを揺動自在に設
けた作業車の走行用操作構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention provides a transmission-side member that is interlocked with an operating portion of a continuously variable transmission for traveling, is swingable, and urges toward a deceleration side. A stopper that contacts the transmission side member to maintain the traveling continuously variable transmission at a set speed state, and another axis that is parallel or substantially parallel to the swing axis of the transmission side member. The present invention relates to an operating structure for traveling of a work vehicle in which a speed control lever for swinging and adjusting the traveling continuously variable transmission to increase / decelerate the traveling speed and changing a maintenance set speed by the stopper is swingably provided.
上記作業車として、従来、例えば実開昭60-96183号公報
に示されるものがあった。すなわち、調速レバーが高速
側に操作されるほどストッパーが高速装置側部材に対し
てその遊端側に位置ずれして作用する状態に変速装置側
部材の揺動軸芯と、ストッパーの揺動軸芯との配置関係
がなっているのである。つまり、調速レバーの単位角度
の揺動により変速装置側部材の操作される揺動角が調速
レバーが高速側に操作されるほど小になるようになって
いるのである。Conventionally, as the above-mentioned work vehicle, for example, there is one disclosed in Japanese Utility Model Laid-Open No. 60-96183. That is, as the speed control lever is operated toward the high speed side, the stopper acts on the high speed device side member by shifting the position toward the free end side of the high speed device side member and the swinging shaft core of the transmission device side member and the stopper There is a positional relationship with the shaft core. That is, the swing angle at which the transmission-side member is operated by swinging the speed control lever by a unit angle becomes smaller as the speed control lever is operated toward the higher speed side.
従来の場合、調速レバーの全ストロークを小に抑えよう
とすると、変速装置側部材の操作可能な揺動角も小にな
り、実際に操作できる変速範囲が変速装置自体が備えて
いる変速可能範囲より小になったり、所望範囲より小に
なっていた。In the conventional case, if the entire stroke of the speed control lever is to be kept small, the operable swing angle of the transmission side member will also be small, and the actual shift range that the transmission itself has can be changed. It was smaller than the range or smaller than the desired range.
本発明の目的は、変速装置側部材の揺動軸芯とストッパ
ーの揺動軸芯との配置関係の設定如何にかかわらず、調
速レバーの全ストロークを小に抑えても、その割には実
際に変速できる範囲を大にできるようにすることにあ
る。The object of the present invention is to reduce the total stroke of the speed control lever to a small value, regardless of the setting of the positional relationship between the swing shaft core of the transmission side member and the swing shaft core of the stopper. It is to be able to increase the range that can actually be changed.
本発明の特徴構成は、冒記した作業車の走行用操作構造
において、調速レバーの単位角度の揺動によって前記変
速装置側部材が操作される揺動角を前記調速レバーが高
速側になるほど大にするカム面に前記変速装置側部材の
ストッパー接触面、及び、前記ストッパーの作用面の少
なくとも一方を形成してあることにある。そしてその作
用及び効果は次のとおりである。According to a characteristic configuration of the present invention, in the operating structure for traveling of the work vehicle described above, the swing angle at which the transmission side member is operated by swinging the speed control lever at a unit angle is set so that the speed control lever moves to a high speed side. At least one of the stopper contact surface of the speed change device side member and the acting surface of the stopper is formed on the cam surface which is enlarged as much as possible. The action and effect are as follows.
各種装置の配置設計等の都合のために、増速操作に伴い
ストッパーが変速装置側部材に対しその遊端側に位置ず
れするところの配置関係に変速装置側部材の揺動軸芯と
ストッパーの揺動軸芯とをしても、ストッパーの変速装
置側部材に対する前記位置ずれにかかわらず、ストッパ
ーの揺動に伴う変速装置側部材の揺動角が、ストッパー
揺動角と同一になったりストッパー揺動角より大になる
等、従来より大になるようにすることが前記カム面によ
ってできる。また、増速操作に伴いストッパーが変速装
置側部材に対してその基端側に位置ずれして調速レバー
の単位ストローク操作による増速変化巾が高速側など大
になるところの関係に前記軸芯配置関係をしても、スト
ッパーの揺動に伴う変速装置側部材の揺動角がストッパ
ー揺動角より大になる度合いが前記軸芯配置関係に起因
するよりもさらに大になるようにすることが前記カム面
によってできる。For convenience of arrangement design of various devices, the stopper is displaced to the free end side with respect to the transmission side member due to the speed increasing operation. Even if the stopper is used as the swing shaft core, the swing angle of the transmission side member accompanying the swing of the stopper may be the same as the stopper swing angle regardless of the displacement of the stopper with respect to the shift device side member. The cam surface can be made larger than the conventional one, such as being larger than the swing angle. Further, the stopper is displaced toward the base end side of the transmission side member due to the speed increasing operation, and the speed change range by the unit stroke operation of the speed control lever becomes large on the high speed side. Even with the core arrangement relationship, the degree to which the swing angle of the transmission-side member accompanying the swing of the stopper becomes larger than the stopper swing angle is greater than that due to the shaft center arrangement relationship. It is possible by the cam surface.
カム面により、調速レバーの揺動ストロークを小に抑え
て限られて比較的狭いスペースにもレバー配置ができる
ようになり、しかもその割には、変速装置をそれ自体が
備えている変速範囲全体や所望する範囲にわたって切換
え操作できる等、実際に変速できる走行速度範囲を広く
確保して変速走行が有利にできるようにできた。The cam surface allows the rocking stroke of the speed control lever to be kept small, allowing the lever to be placed in a relatively limited space, and yet, for that reason, the transmission range provided by the transmission itself It has been possible to secure a wide traveling speed range in which gears can be actually changed, such as a changeover operation over the whole or a desired range, so that gear shifting can be advantageously performed.
次に実施例を示す。 Next, examples will be shown.
第4図に示すように、車輪式走行機体の前後輪間に芝刈
り装置(1)を昇降操作自在に取付けると共に、走行機体
から芝刈り装置(1)に回動力伝達するように構成して、
乗用型芝刈り機を構成してある。As shown in FIG. 4, the lawn mowing device (1) is mounted between the front and rear wheels of the wheel-type traveling vehicle so that it can be moved up and down, and the driving force is transmitted from the traveling vehicle to the lawn mowing device (1). ,
A riding lawn mower is constructed.
エンジン(E)の出力が、中立状態を挟んで前進側と後進
側に切換え可能な油圧式走行用無段変速装置(2)を介し
て後輪用ミッション(3)に伝達されるように構成し、そ
して、第1図及び第2図に示す走行用操作構造により無
段変速装置(2)を操作して機体走行操作をするようにし
てある。The output of the engine (E) is transmitted to the rear wheel mission (3) via the hydraulic traveling continuously variable transmission (2) that can switch between the forward side and the reverse side across the neutral state. Then, the continuously variable transmission (2) is operated by the traveling operation structure shown in FIG. 1 and FIG.
すなわち、無段変速装置(2)の回転軸式の操作部(2a)に
揺動リンク(4)及び押引きロッド(5)を介して変速ペダル
(6)を連動させると共に、この変速ペダル(6)を前進側操
作部(6a)をして踏込み操作すると操作部(2a)が前進側に
回動するように、かつ、変速ペダル(6)を後進側操作部
(6b)をして踏込み操作すると操作部(2a)が後進側に回動
するように、かつ、いずれにおいても変速ペダル(6)の
踏込み操作ストロークを大にするほど操作部(2a)がより
高速側になるようにしてある。そして、後輪用ミッショ
ン(3)のケースに軸芯(P1)の周りで揺動するように枢着
したアーム(7)のローラ部(7a)をスプリング(8)により揺
動リンク(4)のカム面(4a)に取付け付勢すると共に、こ
の接当付勢とカム面(4a)の形状とのための揺動リンク
(4)が中立状態に付勢されるように構成することによ
り、変速ペダル(6)の操作を解除すると、スプリング(8)
と無段変速装置(2)の自己復元力とによる付勢力のため
に変速ペダル(6)及び操作部(2a)が自動的に中立位置に
復帰するようにしてある。That is, the rotary pedal (2a) of the continuously variable transmission (2) is connected to the speed change pedal via the swing link (4) and the push-pull rod (5).
(6) is interlocked, and when the speed change pedal (6) is operated by depressing the forward operation part (6a), the operation part (2a) is rotated forward, and the speed change pedal (6) On the reverse side
The operation part (2a) rotates more toward the reverse side when (6b) is depressed, and the operation part (2a) becomes larger as the depression operation stroke of the speed change pedal (6) is increased. It is designed to be on the high speed side. Then, the roller portion (7a) of the arm (7) pivotally attached to the case of the rear wheel mission (3) so as to swing around the shaft center (P 1 ) is connected to the swing link (4) by the spring (8). ) Is attached to the cam surface (4a) and biased, and a swinging link for this contact bias and the shape of the cam surface (4a)
When the gearshift pedal (6) is released, the spring (8) is configured so that (4) is biased to the neutral state.
The shift pedal (6) and the operating portion (2a) are automatically returned to the neutral position due to the biasing force of the continuously variable transmission (2) and the self-restoring force of the continuously variable transmission (2).
前記揺動リンク(4)をスプリング(8)及び無段変速装置自
体の復元力による中立状態への付勢にかかわらず中立復
帰しないように前進側位置に受止め支持させるための丸
棒製ストッパー(9)を取付け板(10)を介して機体側支持
部材(11)に取付けてある。取付け板(10)は揺動リンク
(4)の揺動軸芯(P2)と平行またはほぼ平行な別の軸芯
(P3)の周りで回動するように支持部材(11)のボス部(1
1a)に外嵌してあると主に、摩擦式ロック機構(A)によっ
て支持部材(11)に固定されるように構成してあり、スト
ッパー(9)を形成する丸棒の地端側で作成してある調速
レバー(12)を軸芯(P3)の周りで揺動操作することによ
り、ストッパー(9)が軸芯(P3)の周りで揺動調節されて
揺動リンク(4)を高速側に押圧揺動させて無段変速装置
(2)を増速操作したり、揺動リンク(4)が中立側に往動さ
れることを許容して無段変速装置(2)を減速操作するよ
うに、かつ、ストッパー(9)がロック機構(A)により調節
位置に固定されて揺動リンク(4)を受止め支持すること
により、揺動リンク(4)の位置によって決まる設定速度
状態に無段変速装置(2)を維持するようにしてある。A stopper made of a round rod for receiving and supporting the swinging link (4) at the forward side position so as not to return to the neutral state regardless of the biasing force of the spring (8) and the restoring force of the continuously variable transmission itself to the neutral state. (9) is attached to the fuselage side support member (11) via the attachment plate (10). Mounting plate (10) is a swing link
Another axis parallel or almost parallel to the swing axis (P 2 ) of (4)
The boss (1) of the support member (11) is rotated so that it rotates around (P 3 ).
1a ) is configured to be fixed to the support member (11) mainly by the friction type lock mechanism (A) when it is fitted on the outer side of the round bar forming the stopper (9). By swinging the speed control lever (12) created in step 3 around the axis (P 3 ), the stopper (9) is swing-adjusted around the axis (P 3 ) and the swing link (4) is pushed and oscillated to the high speed side to continuously variable transmission
The stopper (9) is set so that the speed change operation of (2) or the swing link (4) is allowed to move to the neutral side to decelerate the continuously variable transmission (2). The continuously variable transmission (2) is maintained at the set speed state determined by the position of the swing link (4) by being fixed to the adjusted position by the lock mechanism (A) and receiving and supporting the swing link (4). Is done.
つまり、作業時には、調速レバー(12)の揺動操作により
ストッパー(9)を揺動調節して、無段変速装置(2)を増減
速操作すると共にストッパー(9)による維持設定速度を
所望速度に変更調節することにより、無段変速装置(2)
を所望速度の前進伝動状態に維持するための人為操作を
しなくとも所望の一定速度で走行できるようにしてあ
る。そして、変速ペダル(6)による変速操作をしながら
走行したり、後進走行をする際には、調速レバー(12)を
中立位置(N)に対して前進側とは反対側に位置する操作
位置(OFF)に操作し、ストッパー(9)を変速操作の障害物
にならないように揺動リンク(4)の作動範囲から外れた
箇所に位置させると共にこの箇所に摩擦式ロック機構
(A)によって維持しておくようにしてある。In other words, during work, the stopper (9) is rocked and adjusted by the rocking operation of the speed control lever (12) to accelerate and decelerate the continuously variable transmission (2), and at the same time the desired set speed is maintained by the stopper (9). Continuously variable transmission by changing and adjusting to speed (2)
The vehicle can travel at a desired constant speed without any manual operation for maintaining the vehicle in a forward transmission state at a desired speed. Then, when traveling while performing a speed change operation with the speed change pedal (6) or when traveling in reverse, the speed control lever (12) is located on the side opposite to the forward side with respect to the neutral position (N). Operate to the position (OFF), position the stopper (9) out of the operating range of the swing link (4) so as not to obstruct the gear shifting operation, and at this point friction lock mechanism.
It is kept by (A).
揺動リンク(4)のストッパー(9)が作用するところのスト
ッパー接触面(4b)を第1図の如き円弧型カム面に形成し
て、前記軸芯(P2)と(P3)の前記位置関係にかかわらず、
調速レバー(12)の中立位置(N)から前進最高速位置(Fma
x)までの操作ストロークの割には調速レバー(12)によっ
て操作できる変速範囲が大になるように構成してある。
すなわち、ストッパー接触面(4b)が前記カム面形状のた
めに、第3図に示すように、調速レバー(12)の単位角度
(α)の揺動によって揺動リンク(4)の操作される揺動
角(β)を調速レバー(12)が高速側に在るほど大にし、
調速レバー(12)が高速側に操作されるに際し、調速レバ
ー(12)の揺動に伴いストッパー(9)が揺動リンク(4)の遊
端側に位置ずれしても、揺動リンク(4)の実際の揺動角
が調速レバー(12)の揺動角より大になるようにするので
ある。The stopper contact surface (4b) where the stopper (9) of the rocking link (4) acts is formed on the arcuate cam surface as shown in Fig. 1, and the shaft cores (P 2 ) and (P 3 ) Regardless of the positional relationship,
From the neutral position (N) of the speed governor (12) to the forward maximum speed position (Fma
It is configured so that the speed change range that can be operated by the speed control lever (12) is large relative to the operation stroke up to x).
That is, because of the cam surface shape of the stopper contact surface (4b), as shown in FIG. 3, the rocking link (4) is operated by rocking the speed adjusting lever (12) at a unit angle (α). Increase the swing angle (β) as the speed adjustment lever (12) is on the high speed side,
When the speed control lever (12) is operated toward the high speed side, even if the stopper (9) shifts to the free end side of the swing link (4) due to the swing of the speed control lever (12), it swings. The actual swing angle of the link (4) is made larger than the swing angle of the speed control lever (12).
前記ロック機構(A)を構成するに、取付け板(10)、これ
の両側に各別に位置する一対の摩擦板(13),(13)及び押
圧具(14)の夫々をロックバネ(15)の弾性復元力によって
支持部材(11)の方に押圧することにより、取付け板(10)
に揺動リンク(4)の中立復元力で揺動されないように摩
擦抵抗を付与するようにしてある。また、後輪ミッショ
ン(3)に備えてある走行用ブレーキ(16)が制動操作され
ると、走行用ブレーキ(16)とブレーキペダル(図示せ
ず)との連動用回転軸(17)に一体回動可能に付設してあ
る揺動アーム(18)がロックバネ(15)及び押圧具(14)の支
軸(19)の操作アーム(20)に接当して支軸(19)が回転操作
され、支軸(19)に取付ピン(21)をして一体回転可能に取
付けてあるロック解除カム(22)が、支軸(19)に摺動自在
に取付けてあるバネ操作部材(23)を介してロックバネ(1
5)をロック解除状態に圧縮変形操作するように構成して
ある。すなわち、走行用ブレーキ(16)の制動操作がされ
ると、自動的にロック解除状態になってストッパー(9)
による走行速度維持を解除するようにしてある。In the lock mechanism (A), the mounting plate (10), the pair of friction plates (13), (13) and the pressing member (14) respectively located on both sides of the mounting plate (10) are attached to the lock spring (15). The mounting plate (10) is pushed by pressing it toward the support member (11) by the elastic restoring force.
A frictional resistance is provided so that the swinging link (4) is not swung by the neutral restoring force. When the traveling brake (16) provided in the rear wheel mission (3) is braked, it is integrated with the rotary shaft (17) for interlocking the traveling brake (16) and the brake pedal (not shown). The swinging arm (18) attached so as to be rotatable contacts the lock spring (15) and the operation arm (20) of the support shaft (19) of the pressing tool (14) to rotate the support shaft (19). The lock release cam (22), which is attached to the support shaft (19) by the mounting pin (21) so as to rotate integrally, is the spring operation member (23) which is slidably attached to the support shaft (19). Through the lock spring (1
5) is configured to be compressed and deformed to an unlocked state. That is, when the driving brake (16) is braked, it automatically becomes unlocked and the stopper (9)
The maintenance of the traveling speed due to is canceled.
ストッパー(9)を作用させる部材として、無段変速装置
(2)と変速ペダル(6)の連動用の揺動リンク(4)を使用す
る他に、それ専用の揺動部材を設けて実施してもよい。
したがって、揺動リンク(4)を、無段変速装置の操作部
に連動の変速装置側部材(4)と称する。As a member that actuates the stopper (9), a continuously variable transmission
Instead of using the swing link (4) for interlocking the (2) and the speed change pedal (6), a swing member dedicated to the swing link (4) may be provided.
Therefore, the swing link (4) is referred to as a transmission-side member (4) that is interlocked with the operating portion of the continuously variable transmission.
調速レバー(12)の高速側への揺動に伴いストッパー(9)
が変速装置側部材に対してその揺動軸芯側に位置ずれる
状態にストッパー揺動軸芯(P3)と変速装置側部材揺動軸
芯(P2)とを配置設定する場合にも本発明は適用できる。
この場合、前記位置ずれに起因する調速レバーストロー
クの短縮化に加え、さらにストッパー接触面(4b)のカム
面形状による短縮化をも可能になるのである。Stopper (9) as the governor lever (12) swings to the high speed side
If the stopper swing shaft core (P 3 ) and the shift member side member swing shaft core (P 2 ) are arranged and set so that the stopper is displaced toward the transmission shaft side member, The invention is applicable.
In this case, in addition to shortening the stroke of the speed control lever due to the displacement, it is possible to further shorten the stopper contact surface (4b) by the shape of the cam surface.
また、変速装置側部材におけるストッパー接触面を前記
カム面に形成する他に、ストッパーにおける作用面をも
前記カム面に形成したり、あるいは、ストッパーの作用
面のみを前記カム面に形成して実施してもよい。In addition to forming the stopper contact surface of the transmission side member on the cam surface, the working surface of the stopper may be formed on the cam surface, or only the working surface of the stopper may be formed on the cam surface. You may.
芝刈り機の他、農用トラクター、コンバイン、田植機及
び運搬車等の各種作業車にも本発明は適用できる。The present invention is applicable to various work vehicles such as agricultural tractors, combine harvesters, rice transplanters, and transport vehicles as well as lawnmowers.
尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.
図面は本発明に係る作業車の走行用操作構造の実施例を
示し、第1図は変速装置調速用操作部の側面図、第2図
は変速装置調速用操作部の一部切欠き正面図、第3図は
ストッパー作用状態の説明図、第4図は芝刈り機全体の
側面図である。 (2)……走行用無段変速装置、(4)……変速装置側部材、
(4b)……ストッパー接触面、(9)……ストッパー、(12)
……調速レバー、(P2),(P3)……軸芯。The drawings show an embodiment of an operating structure for traveling of a work vehicle according to the present invention. FIG. 1 is a side view of a transmission speed-control operating portion, and FIG. 2 is a partial cutaway of the transmission speed-control operating portion. FIG. 4 is a front view, FIG. 3 is an explanatory view of a stopper working state, and FIG. 4 is a side view of the entire lawn mower. (2) …… Continuously variable transmission for traveling, (4) …… Transmission gear member,
(4b) …… Stopper contact surface, (9) …… Stopper, (12)
…… Governor, (P 2 ), (P 3 ) …… Axis core.
Claims (1)
動させた変速装置側部材(4)を揺動自在に設けると共に
減速側に付勢し、前記変速装置側部材(4)に接当して前
記走行用無段変速装置(2)を設定速度状態に維持するス
トッパー(9)、及び、このストッパー(9)を前記変速装置
側部材(4)の揺動軸芯(P2)と平行またはほぼ平行な別の
軸芯(P3)の周りで揺動調節して前記走行用無段変速装置
(2)を増減速操作すると共に前記ストッパー(9)による維
持設定速度を変更する調速レバー(12)を揺動自在に設け
た作業車の走行用操作構造であって、前記調速レバー(1
2)の単位角度(α)の揺動によって前記変速装置側部材
(4)が操作される揺動角(β)を前記調速レバー(12)が
高速側になるほど大にするカム面に前記変速装置側部材
(4)のストッパー接触面(4b)、及び、前記ストッパー(9)
の作用面の少なくとも一方を形成してある作業車の走行
用操作構造。1. A transmission side member (4) interlocking with an operating portion (2a) of a traveling continuously variable transmission (2) is swingably provided and urged toward a deceleration side, and the transmission side member is provided. A stopper (9) that contacts the (4) and maintains the traveling continuously variable transmission (2) at a set speed state, and this stopper (9) is a swing shaft of the transmission side member (4). The above-mentioned continuously variable transmission for traveling by adjusting the swing around another axis (P 3 ) parallel or almost parallel to the core (P 2 ).
(2) An operating structure for traveling of a work vehicle provided with a speed control lever (12) for changing the maintenance set speed by the stopper (9) while accelerating and decelerating the speed control lever (9). 1
By the swinging of the unit angle (α) in 2), the transmission side member
(4) The swing angle (β) that is operated is increased as the speed control lever (12) becomes higher in speed.
Stopper contact surface (4b) of (4) and the stopper (9)
An operating structure for traveling of a work vehicle in which at least one of the working surfaces of the work vehicle is formed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63150656A JPH0657498B2 (en) | 1988-06-17 | 1988-06-17 | Operation structure for traveling of work vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63150656A JPH0657498B2 (en) | 1988-06-17 | 1988-06-17 | Operation structure for traveling of work vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01317834A JPH01317834A (en) | 1989-12-22 |
JPH0657498B2 true JPH0657498B2 (en) | 1994-08-03 |
Family
ID=15501618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63150656A Expired - Lifetime JPH0657498B2 (en) | 1988-06-17 | 1988-06-17 | Operation structure for traveling of work vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0657498B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102359185B1 (en) * | 2017-09-22 | 2022-02-08 | 주식회사 대동 | Driving control device of agriculture vehicle |
-
1988
- 1988-06-17 JP JP63150656A patent/JPH0657498B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH01317834A (en) | 1989-12-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |