JPH08119077A - Traveling working vehicle - Google Patents
Traveling working vehicleInfo
- Publication number
- JPH08119077A JPH08119077A JP28266794A JP28266794A JPH08119077A JP H08119077 A JPH08119077 A JP H08119077A JP 28266794 A JP28266794 A JP 28266794A JP 28266794 A JP28266794 A JP 28266794A JP H08119077 A JPH08119077 A JP H08119077A
- Authority
- JP
- Japan
- Prior art keywords
- turning
- automatic
- detecting means
- operated
- rear wheel
- 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
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
- Braking Elements And Transmission Devices (AREA)
- Emergency Alarm Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建設用車両、運搬用車
両、農林業用車両等の走行作業車の後輪ブレーキに係
り、詳しくは、後輪自動制動の制動警告装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear wheel brake for a traveling work vehicle such as a construction vehicle, a transportation vehicle, an agricultural and forestry vehicle, and more particularly to a braking warning device for automatic rear wheel braking.
【０００２】[0002]
【従来の技術】従来、特開平５−１９３５１４号公報で
公知のように、左右一対の後輪のうちの選択された一方
を制動可能な一対のサイドブレーキと、前輪を直進位置
から左右一方に設定角度以上に操作するとこの操向操作
に連動してサイドブレーキのうちの旋回内側を制動側に
操作する操作手段を備えると共に、走行用の変速装置を
高速側に操作するとこの操作に連動して、前記操作手段
の作動を禁止する制御手段を備えたものは、既に知られ
ている。2. Description of the Related Art Conventionally, as is known from Japanese Patent Laid-Open No. 5-193514, a pair of side brakes capable of braking a selected one of a pair of left and right rear wheels and a front wheel from a straight traveling position to one of the left and right. When operating above the set angle, it is equipped with an operating means that interlocks with this steering operation to operate the inside of the turn of the side brake to the braking side, and when operating the traveling transmission to the high speed side, it interlocks with this operation. A device having a control means for prohibiting the operation of the operating means is already known.
【０００３】[0003]
【発明が解決しようとする課題】既に知られているよう
な、左右一対の後輪のうちの選択された一方を制動可能
な一対のサイドブレーキと、前輪を直進位置から左右一
方に設定角度以上に操作するとこの操向操作に連動して
サイドブレーキのうちの旋回内側を制動側に操作する操
作手段を備えると共に、走行用の変速装置を高速側に操
作するとこの操作に連動して、前記操作手段の作動を禁
止する制御手段を備えただけのものでは、高速時の安全
性は確保されるが、左右独立して配設されているブレー
キペダルを連結して、左右のサイドブレーキを同時に制
動可能にした状態で、前記操作手段の作動を禁止する制
御手段がなく、なお安全性が十分とは言えない。As is already known, a pair of side brakes capable of braking a selected one of a pair of left and right rear wheels, and a front wheel from a straight traveling position to the left or the right by a set angle or more. When the vehicle is operated to, the operating means is provided for operating the inside of the turn of the side brake to the braking side in conjunction with this steering operation, and when the traveling transmission is operated to the high speed side, the operation is performed in conjunction with this operation. If only a control means that prohibits the operation of the means is provided, safety at high speed is secured, but the left and right side brakes are simultaneously braked by connecting the brake pedals arranged independently on the left and right. In the enabled state, there is no control means for prohibiting the operation of the operation means, and it cannot be said that the safety is sufficient.
【０００４】[0004]
【課題を解決するための手段】本発明は、上述事情に鑑
みなされたものであって、左右を独立して制動操作可能
な後輪ブレーキ（２ａ），（２ｂ）と、これら左右後輪
ブレーキ（２ａ），（２ｂ）を左右独立または同時に制
動操作し得る左右ブレーキペダル（３），（４）とを有
し、かつ旋回時にハンドル操作により、前輪の回動切れ
角が一定切れ角に達すると、自動的に旋回内側の後輪ブ
レーキを制動させる自動旋回助勢手段を備えてなる走行
作業車（１）において、走行用の変速装置（５）が高速
側にあることを検知する高速検知手段（６）と、該高速
検知手段（６）の検知状態にあっては、前記自動旋回助
勢手段の作動を禁止する禁止手段（９）と、前記左右ブ
レーキペダル（３），（４）が、連結して同時に作動す
る状態にあることを検知する連結検知手段（１５）と、
前記自動旋回助勢手段の自動制動レバー（７）がオン状
態にあることを検知する旋回助勢検知手段（８）と、前
記自動旋回助勢手段の作動時、前記連結検知手段（１
５）及び旋回助勢検知手段（８）が共に検知状態にある
と、警報信号を出力する制御手段（２１）とを備えてな
るようにして上述の課題を解決した。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and includes rear wheel brakes (2a) and (2b) capable of independently braking the left and right wheels, and the left and right rear wheel brakes. Left and right brake pedals (3) and (4) capable of independently braking the left and right (2a) and (2b) simultaneously or simultaneously are provided, and the turning angle of the front wheel reaches a certain turning angle by operating the steering wheel during turning. Then, in the traveling work vehicle (1) including the automatic turning assisting means for automatically braking the rear wheel brake on the inside of the turning, the high speed detecting means for detecting that the transmission (5) for traveling is on the high speed side. (6), and in the detection state of the high speed detection means (6), the prohibition means (9) for prohibiting the operation of the automatic turning assisting means and the left and right brake pedals (3), (4) Being connected and operating simultaneously A coupling detecting means for detecting (15),
A turning assist detecting means (8) for detecting that the automatic braking lever (7) of the automatic turning assisting means is in an ON state, and the connection detecting means (1) when the automatic turning assisting means is activated.
5) and the turning assist detection means (8) are both in the detection state, the control means (21) for outputting an alarm signal is provided to solve the above-mentioned problems.
【０００５】[0005]
【作用】上記構造に基づき、走行作業車（１）で作業
中、旋回半径を小さく旋回する時、先ず、走行用の変速
装置（５）の変速レバー（６）を低速側に操作し、次に
自動制動レバー（７）をオンになる状態にし、ハンドル
を操作して前輪の回動切れ角が一定切れ角に達すると、
自動的に旋回内側の後輪ブレーキが制動され、旋回動作
が自動的に助勢されて、極小半径で旋回することになる
が、この際、左右独立して操作可能なブレーキペダル
（３），（４）を連結していると、ペダル部（３ｂ），
（４ｂ）に設けられた連結検知手段（１５）と、前記自
動制動レバー（７）側の旋回助勢検知手段（８）とが制
御部（２１）の中で制御され、警報信号を出し、運転者
に警告を発する。According to the above structure, when the vehicle is turning on the traveling work vehicle (1) with a small turning radius, first the speed change lever (6) of the transmission (5) for traveling is operated to the low speed side, and then the When the automatic braking lever (7) is turned on, the steering wheel is operated and the turning angle of the front wheels reaches a certain angle,
The rear wheel brake on the inside of the turn is automatically braked, and the turning operation is automatically assisted to turn with a minimum radius. At this time, the left and right independently operable brake pedals (3), ( 4) is connected, the pedal portion (3b),
The connection detecting means (15) provided in (4b) and the turning assist detecting means (8) on the automatic braking lever (7) side are controlled in the control section (21) to issue an alarm signal and drive. Warn the person.
【０００６】前記変速装置（５）の変速レバー（６）が
高速側にある時は、前記自動制動レバー（７）をオンに
しても、変速レバー（６）と自動制動レバー（７）の間
に介在する高速検知手段（９）が作用して、常に自動旋
回助勢検知手段を禁止する状態となる。When the speed change lever (6) of the speed change device (5) is on the high speed side, even if the automatic brake lever (7) is turned on, the distance between the speed change lever (6) and the automatic brake lever (7) is increased. The high-speed detecting means (9) interposed in the vehicle operates to always prohibit the automatic turning assist detecting means.
【０００７】なお、上述カッコ内の符号は、図面と対照
するものであるが、何等本発明の構成を限定するもので
はない。The reference numerals in parentheses are for the purpose of contrasting with the drawings, but do not limit the structure of the present invention.
【０００８】[0008]
【実施例】以下、図面に沿って、本発明の実施例につい
て説明する。Embodiments of the present invention will be described below with reference to the drawings.
【０００９】農用トラクタ１には左右独立して制動可能
な後輪ブレーキ２ａ，２ｂと、これら左右の後輪ブレー
キ２ａ，２ｂを運転者が座位姿勢で，左右独立または連
結して同時に操作し得る、左ブレーキペダル３及び右ブ
レーキペダル４とを有し、かつ、ハンドル操作により農
用トラクタ１を旋回させる時、前輪の切れ角が一定切れ
角に達すると、自動的に旋回内側の後輪ブレーキを制動
させるように構成されている。Rear wheel brakes 2a and 2b which can be independently braked on the left and right sides of the agricultural tractor 1 and left and right rear wheel brakes 2a and 2b can be operated simultaneously by the driver in a sitting position by independently or connecting left and right. , The left brake pedal 3 and the right brake pedal 4, and when turning the agricultural tractor 1 by operating the steering wheel, when the turning angle of the front wheels reaches a certain turning angle, the rear wheel brakes inside the turning are automatically applied. It is configured to brake.
【００１０】農用トラクタ１の変速装置５の左側面に
は、図１に示すように、変速レバー６が回動自在に設け
られ、上方に上げると低速、下方に下げると高速と選択
切換可能となっており、変速レバー６の下方には自動制
動レバー７が回動自在に設けられ、上方に上げると自動
制動レバー７のボス部に一体に固着されたプレート７ａ
が、変速装置５の左側面に固定された旋回助勢手段とし
ての自動制動スイッチ８の接点８ａから離れてオンにな
り、下方に下げると前記プレート７ａが前記接点８ａを
押し、オフとなる。As shown in FIG. 1, a gearshift lever 6 is rotatably provided on the left side surface of the transmission 5 of the agricultural tractor 1, and it can be selectively switched between a lower speed if it is raised upward and a higher speed if lowered. An automatic braking lever 7 is rotatably provided below the speed change lever 6, and when raised upward, a plate 7a integrally fixed to a boss portion of the automatic braking lever 7 is provided.
Is turned on apart from the contact 8a of the automatic braking switch 8 as a turning assisting means fixed to the left side surface of the transmission 5, and when lowered, the plate 7a pushes the contact 8a to turn it off.
【００１１】変速レバー６に固定されたピン６ｃと、自
動制動レバー７に固定されたピン７ｃとは、リンクプレ
ート９によって連結されているが、リンクプレート９の
ピン６ｃ側は、自動制動レバー７のオン、オフの行程分
以上に長孔９ａが穿孔され、図１の仮想線で示すよう
に、変速レバー６が低速位置の場合は、自動制動レバー
７をオンにしても、オフにしても、ピン６ｃが前記長孔
９ａ内を摺動するだけで、変速レバー６は低速位置から
動かず、自動制動レバー７はオン、オフいずれにも操作
可能であるが、変速レバー６が高速位置の場合はピン６
ｃが前記長孔９ａの最下端にあって、自動制動レバー７
をオフ位置からオン位置に上げようとすると、自動制動
レバー７と前記リンクプレート９を介して連動連結する
変速レバー６を押し上げて低速位置にしない限り、オン
位置にならないように作動の禁止手段が働くようになっ
ている。The pin 6c fixed to the speed change lever 6 and the pin 7c fixed to the automatic braking lever 7 are connected by a link plate 9, and the pin 6c side of the link plate 9 has the automatic braking lever 7 When the long hole 9a is drilled for more than the on / off stroke and the shift lever 6 is at the low speed position as shown by the phantom line in FIG. 1, the automatic braking lever 7 is turned on or turned off. , The pin 6c simply slides in the elongated hole 9a, the gear shift lever 6 does not move from the low speed position, and the automatic braking lever 7 can be turned on or off, but the gear shift lever 6 does not move in the high speed position. If pin 6
c is at the lowermost end of the long hole 9a, and the automatic braking lever 7
When an attempt is made to raise the gear from the off position to the on position, the operation prohibiting means is provided so as not to be in the on position unless the transmission lever 6 linked to the automatic braking lever 7 through the link plate 9 is pushed up to the low speed position. I am supposed to work.
【００１２】農用トラクタ１の変速装置５下方には、ブ
レーキペダル軸１１が設けられ、前記左ブレーキペダル
３はブレーキペダル軸１１と一体に固着され、その操作
は農用トラクタ１の左方に伝達され、ブレーキペダル軸
１１左端に固定されたアーム３ａを回動させる。右ブレ
ーキペダル４は、ブレーキペダル軸１１に回動自在に装
着され、その操作はアーム４ａを回動させる。A brake pedal shaft 11 is provided below the transmission 5 of the agricultural tractor 1, and the left brake pedal 3 is integrally fixed to the brake pedal shaft 11, and its operation is transmitted to the left of the agricultural tractor 1. , The arm 3a fixed to the left end of the brake pedal shaft 11 is rotated. The right brake pedal 4 is rotatably mounted on the brake pedal shaft 11, and its operation rotates the arm 4a.
【００１３】左ブレーキペダル３及び右ブレーキペダル
４は、ステップ１２の上面をを貫通して、ステップ１２
上方に延出し、運転者が座位姿勢で左右独立または連結
して同時にペダル部３ｂ，４ｂを踏込むことができるよ
うになっている。The left brake pedal 3 and the right brake pedal 4 penetrate the upper surface of the step 12 and
It is extended upward so that the driver can step on the pedal portions 3b and 4b independently in the sitting posture or in the left and right directions or by connecting them.
【００１４】右ペダル部４ｂの先端には、左右に回動自
在で左ペダル部３ｂの先端と係脱可能な連結板１４が装
着され、左ペダル部３ｂの先端には連結板１４によって
連結されたことを検知する連結検知手段としての連結ス
イッチ１５が装着され、不連結の時は、左右独立して操
作可能に、連結時には左右同時に踏込み操作可能になっ
ている。A connecting plate 14 is attached to the tip of the right pedal portion 4b so as to be rotatable left and right and engageable with and disengageable from the tip of the left pedal portion 3b. The connecting plate 14 is connected to the tip of the left pedal portion 3b. A connection switch 15 as connection detection means for detecting the fact that it is connected is mounted, and when not connected, the left and right can be operated independently, and when connected, the left and right can be operated simultaneously.
【００１５】前記アーム３ａ，４ａからは、後方に向か
って左右のブレーキリンク１６ａ，１６ｂが延出され
その先端に連結された左右のブレーキレバー１７ａ，１
７ｂを回動させることによって、左右の後輪ブレーキ２
ａ，２ｂを制動する。Left and right brake links 16a, 16b extend rearward from the arms 3a, 4a.
Left and right brake levers 17a, 1 connected to the ends thereof
By rotating 7b, the left and right rear wheel brakes 2
Braking a and 2b.
【００１６】前記自動制動レバー７のボス部には別のア
ーム１８が固着され、ロッド１９を介して下方のアーム
２０に連動連結している。アーム２０のボスは、前記ブ
レーキペダル軸１１に回動自在に支持されているが、前
記左ブレーキペダル３及び右ブレーキペダル４の踏込み
操作による制動と、自動制動レバー７の操作による自動
旋回助勢の制動とは、別系統の制動として後輪ブレーキ
２ａ，２ｂに伝達されるようになっている。Another arm 18 is fixed to the boss portion of the automatic braking lever 7, and is linked to a lower arm 20 via a rod 19. Although the boss of the arm 20 is rotatably supported by the brake pedal shaft 11, the boss of the arm 20 is braked by depressing the left brake pedal 3 and the right brake pedal 4 and assisted in turning automatically by operating the automatic braking lever 7. Braking is transmitted to the rear wheel brakes 2a and 2b as braking of another system.
【００１７】上述の構造に基づき、図３に示すように旋
回助勢手段としての自動制動スイッチ８と連結検知手段
としての連結スイッチ１５の回路は共に、制御装置２１
に集約入力され、出力として一方では例えばブザーによ
って警報して、聴覚に訴え、メータパネル板には、例え
ば、「ブレーキ連結を解除して下さい」という表示を点
滅させて視覚に訴え、左右ブレーキペダルを連結したま
ま、自動旋回助勢の片側制動をしないように警告を発
し、安全運転を期するようになっている。Based on the above-mentioned structure, as shown in FIG. 3, both the circuit of the automatic braking switch 8 as the turning assisting means and the circuit of the connecting switch 15 as the connecting detecting means are provided in the control device 21.
On the other hand, as an output, for example, a buzzer warns the user to give an audible warning, and a meter panel panel gives a visual indication by flashing the display "Please release the brake connection", for example, the left and right brake pedals. While connecting, the warning is issued to prevent one-side braking of the automatic turning assist, and safe driving is planned.
【００１８】[0018]
【発明の効果】本発明は、左右を独立して制動操作可能
な後輪ブレーキと、これら左右後輪ブレーキを左右独立
または同時に制動操作し得る左右ブレーキペダルとを有
し、かつ旋回時にハンドル操作により、前輪の回動切れ
角が一定切れ角に達すると、自動的に旋回内側の後輪ブ
レーキを制動させる自動旋回助勢手段を備えてなる走行
作業車において、走行用の変速装置が高速側にあること
を検知する高速検知手段と、該高速検知手段の検知状態
にあっては、前記自動旋回助勢手段の作動を禁止する禁
止手段と、前記左右ブレーキペダルが、連結して同時に
作動する状態にあることを検知する連結検知手段と、前
記自動旋回助勢手段の自動制動レバーがオン状態にある
ことを検知する旋回助勢検知手段と、前記自動旋回助勢
手段の作動時、前記連結検知手段及び旋回助勢検知手段
が共に検知状態にあると、警報信号を出力する制御手段
とを備えてなるようにしたので、左右ブレーキペダルを
連結したまま自動旋回助勢手段が作動することなく、安
全な運転が図られるようになった。The present invention has rear wheel brakes capable of independently braking the left and right wheels, and left and right brake pedals capable of independently braking the left and right rear wheel brakes simultaneously or simultaneously and operating the steering wheel during turning. As a result, when the turning angle of the front wheels reaches a certain turning angle, in a traveling work vehicle equipped with automatic turning assist means for automatically braking the rear wheel brake on the inside of the turning, the speed change device for running is set to the high speed side. The high-speed detection means for detecting that there is a state, and in the detection state of the high-speed detection means, the prohibition means for prohibiting the operation of the automatic turning assisting means and the left and right brake pedals are in a state of being connected and operating simultaneously. Connection detection means for detecting the presence of the presence, turning assist detection means for detecting that the automatic braking lever of the automatic turning assistance means is in an ON state, and when the automatic turning assistance means operates, When the connection detecting means and the turning assist detecting means are both in the detection state, the control means for outputting an alarm signal is provided, so that the automatic turning assist means does not operate with the left and right brake pedals connected. It has become possible to drive safely.
【図１】自動旋回助勢装置の側面図である。FIG. 1 is a side view of an automatic turning assistance device.
【図２】ブレーキペダルの斜視図である。FIG. 2 is a perspective view of a brake pedal.
【図３】制御回路図である。FIG. 3 is a control circuit diagram.
３ 左ブレーキペダル ４ 右ブレーキペダル ６ 変速レバー ７ 自動制動レバー ８ 自動制動スイッチ ９ リンクプレート １１ ブレーキペダル軸 １４ 連結板 １５ 連結スイッチ 3 Left brake pedal 4 Right brake pedal 6 Shift lever 7 Automatic braking lever 8 Automatic braking switch 9 Link plate 11 Brake pedal shaft 14 Connecting plate 15 Connecting switch
Claims (1)
ーキと、これら左右後輪ブレーキを左右独立または同時
に制動操作し得る左右ブレーキペダルとを有し、かつ旋
回時にハンドル操作により、前輪の回動切れ角が一定切
れ角に達すると、自動的に旋回内側の後輪ブレーキを制
動させる自動旋回助勢手段を備えてなる走行作業車にお
いて、 走行用の変速装置が高速側にあることを検知する高速検
知手段と、 該高速検知手段の検知状態にあっては、前記自動旋回助
勢手段の作動を禁止する禁止手段と、 前記左右ブレーキペダルが、連結して同時に作動する状
態にあることを検知する連結検知手段と、 前記自動旋回助勢手段の自動制動レバーがオン状態にあ
ることを検知する旋回助勢検知手段と、 前記自動旋回助勢手段の作動時、前記連結検知手段及び
旋回助勢検知手段が共に検知状態にあると、警報信号を
出力する制御手段と、 を備えてなる走行作業車。1. A rear wheel brake capable of independently braking left and right, and left and right brake pedals capable of independently controlling the left and right rear wheel brakes simultaneously or simultaneously, and by operating a steering wheel during turning, the front wheel When the turning angle reaches a certain angle, a traveling work vehicle equipped with automatic turning assist means that automatically brakes the rear wheel brakes inside the turning is detected to have the speed change gear for running on the high speed side. The high-speed detection means, and in the detection state of the high-speed detection means, it is detected that the prohibition means for prohibiting the operation of the automatic turning assisting means and the left and right brake pedals are connected and simultaneously operated. Connection detecting means, a turning assist detecting means for detecting that the automatic braking lever of the automatic turning assisting means is in an ON state, and the connection detecting means during the operation of the automatic turning assisting means. If means and turning assisting detecting means are both in the detection state, the traveling working vehicle comprising and a control means for outputting an alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28266794A JPH08119077A (en) | 1994-10-20 | 1994-10-20 | Traveling working vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28266794A JPH08119077A (en) | 1994-10-20 | 1994-10-20 | Traveling working vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08119077A true JPH08119077A (en) | 1996-05-14 |
Family
ID=17655493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28266794A Pending JPH08119077A (en) | 1994-10-20 | 1994-10-20 | Traveling working vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08119077A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001003985A1 (en) * | 1999-07-13 | 2001-01-18 | Lee Byung Kug | One wheel brake system of automobile |
| GB2466065A (en) * | 2008-12-12 | 2010-06-16 | Agco Gmbh | Braking system having left and right brake pedals that are lockable together, and warning means to indicate the pedals are unlocked |
-
1994
- 1994-10-20 JP JP28266794A patent/JPH08119077A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001003985A1 (en) * | 1999-07-13 | 2001-01-18 | Lee Byung Kug | One wheel brake system of automobile |
| GB2466065A (en) * | 2008-12-12 | 2010-06-16 | Agco Gmbh | Braking system having left and right brake pedals that are lockable together, and warning means to indicate the pedals are unlocked |
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