JP2542594Y2 - Parking brake device for work vehicles - Google Patents

Parking brake device for work vehicles

Info

Publication number
JP2542594Y2
JP2542594Y2 JP6440991U JP6440991U JP2542594Y2 JP 2542594 Y2 JP2542594 Y2 JP 2542594Y2 JP 6440991 U JP6440991 U JP 6440991U JP 6440991 U JP6440991 U JP 6440991U JP 2542594 Y2 JP2542594 Y2 JP 2542594Y2
Authority
JP
Japan
Prior art keywords
brake
brake lever
operating
locking piece
parking brake
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 - Fee Related
Application number
JP6440991U
Other languages
Japanese (ja)
Other versions
JPH0516532U (en
Inventor
充司 門田
美樹雄 大森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP6440991U priority Critical patent/JP2542594Y2/en
Publication of JPH0516532U publication Critical patent/JPH0516532U/en
Application granted granted Critical
Publication of JP2542594Y2 publication Critical patent/JP2542594Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Braking Elements And Transmission Devices (AREA)

Description

【考案の詳細な説明】[Detailed description of the invention]

【0001】[0001]

【産業上の利用分野】本考案は、コンバインや運搬車等
の作業車の駐車ブレーキ装置係り、詳しくは、操縦塔と
これの後に配置の運転席との間にブレーキペダルを配設
してあるとともに、このブレーキペダルに、降車状態に
おける手動操作でのブレーキ作動を可能とするためのブ
レーキレバーを取付けてある作業車の駐車ブレーキ装置
に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parking brake device for a working vehicle such as a combine or a transport vehicle, and more particularly, a brake pedal is disposed between a control tower and a driver's seat disposed behind the control tower. In addition, the present invention relates to a parking brake device for a work vehicle having a brake lever attached to the brake pedal for enabling a manual brake operation when the vehicle is getting off.

【0002】[0002]

【従来の技術】この種の駐車ブレーキ装置は、従来で
は、実開平1−176525号公報で示されたもののよ
うに、前方に向けて延出するブレーキレバーをブレーキ
ペダルに固着したものが知られている。つまり、機体か
ら降りた降車状態においては、ブレーキレバーを下方に
揺動操作して駐車ブレーキを効かすとともに、横へ弾性
変位させてフックに係止することで駐車ブレーキ状態を
係止保持させる構造であった。
2. Description of the Related Art A parking brake device of this type has conventionally been known in which a brake lever extending forward is fixed to a brake pedal, as disclosed in Japanese Utility Model Laid-Open Publication No. 1-176525. ing. In other words, when the vehicle gets off the aircraft, the parking brake is activated by swinging the brake lever downward and the parking brake is locked and retained by being elastically displaced to the side and locked to the hook. Met.

【0003】[0003]

【考案が解決しようとする課題】上記コンバインの従来
例では、ブレーキペダルが降車状態における手動操作し
易い高さ位置にあるので、単にレバー部材をブレーキペ
ダルに取付けるだけで駐車ブレーキ装置を構成できるも
のであるが、例えば、坂道途中で駐車するといった乗車
姿勢のままで駐車ブレーキを作動させる必要のあるとき
には、上体を前屈した苦しい姿勢でブレーキレバーを操
作しなければならず、駐車ブレーキの操作性には改善の
余地があった。本考案の目的は、運転席に着座しての乗
車姿勢でも容易に操作できる駐車ブレーキ装置の提供に
ある。
In the conventional example of the above-mentioned combine, since the brake pedal is located at a height where manual operation is easily performed when the vehicle is getting off, a parking brake device can be constituted by simply attaching a lever member to the brake pedal. However, for example, when it is necessary to operate the parking brake in a riding position such as parking on a hill, the brake lever must be operated in a torso posture with the upper body bent forward, and the operation of the parking brake There was room for improvement in gender. An object of the present invention is to provide a parking brake device that can be easily operated even in a riding posture while sitting in a driver's seat.

【0004】[0004]

【課題を解決するための手段】上記目的の達成のために
本考案は、冒頭に記載した作業車の駐車ブレーキ装置に
おいて、ブレーキレバーをその上方への戻り移動を阻止
して係止保持可能な係止片を下端部に、かつ、運転席へ
の着座姿勢において手動操作可能な操作片を上端部に夫
々取付けた操作軸を、上下軸心周りで回動自在に操縦塔
に支承させるとともに、操作片の回動操作により、係止
片とブレーキレバーとが干渉しない退避姿勢と、ブレー
キ作動位置にあるブレーキレバーをその作動位置に係止
保持をするべく該ブレーキレバーの上下移動経路に張り
出した牽制姿勢とが現出される状態に、係止片の姿勢を
変更自在とする操作機構を構成してあることを特徴とす
るものである。そして、牽制姿勢にある係止片により、
ブレーキレバーをブレーキ作動位置に係止保持しての駐
車ブレーキ状態におけるブレーキペダルの踏み込み操作
に伴って、操作軸が、係止片が牽制姿勢から退避姿勢に
移動する方向に自動的に回動操作されるように、操作軸
に弾性手段による回動付勢力を付与してあると好都合で
ある。また、操作軸を操縦塔に対して下方に押圧付勢す
る押圧手段を設け、この押圧手段の下方への押圧力と操
縦塔側に設けた下向きの凹入部との協動により、係止片
が牽制姿勢にあるときに操作片を凹入部へ落とし込み係
合し、操作軸を弾性手段の回動付勢力に抗して係止させ
る一時保持機構を構成するとともに、係止片とブレーキ
レバーとが干渉する駐車ブレーキ状態の現出により、操
作片と凹入部との係合が解消されるべく、ブレーキレバ
ーが操作軸を持ち上げ移動する状態に、押圧手段の付勢
力とブレーキペダルの戻り付勢力とを関係付けて設定し
てあると、さらに好都合である。
SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a parking brake device for a work vehicle as described at the beginning, wherein the brake lever is prevented from returning upward and can be locked and held. At the lower end of the locking piece, and at the upper end of the operating shaft, each of which can be manually operated in the seated position in the driver's seat, the operating shaft is supported on the control tower so as to be rotatable around the vertical axis, The retracting posture in which the locking piece and the brake lever do not interfere with each other by the turning operation of the operation piece, and the brake lever in the brake operating position is extended to the vertical movement path of the brake lever in order to lock and hold the brake lever in the operating position. An operation mechanism is configured to freely change the posture of the locking piece in a state where the restraint posture appears. And, by the locking piece in the restraining posture,
When the brake pedal is depressed in the parking brake state with the brake lever locked and held in the brake operating position, the operating shaft is automatically rotated in the direction in which the locking piece moves from the restraining position to the retracted position. As described above, it is advantageous that a rotational urging force is applied to the operation shaft by the elastic means. Further, a pressing means for pressing the operating shaft downward against the control tower is provided, and the locking piece is formed by the cooperation of the downward pressing force of the pressing means and the downward recess provided on the control tower side. When the operation piece is in the restraining position, the operation piece is dropped into the recessed portion to engage and constitute a temporary holding mechanism for locking the operation shaft against the rotational urging force of the elastic means. When the brake lever lifts up and moves the operation shaft, the urging force of the pressing means and the return urging force of the brake pedal are released so that the engagement between the operation piece and the recessed portion is released by the appearance of the parking brake state where the interference occurs. It is more convenient to set them in association with each other.

【0005】[0005]

【作用】請求項1の構成では、ブレーキレバーをブレー
キ作動位置に係止保持する係止片の操作片を、操作軸を
介して上方に持ち上げて配置してあるので、運転席に着
座しての乗車姿勢のままで係止片の姿勢変更操作が自在
に行える。つまり、乗車姿勢においてブレーキペダルを
踏み込み操作してブレーキ作動位置とし、その状態で操
作片を回動操作すれば係止片をしてブレーキレバーを係
止保持でき、従来のように上体をかがめることなく駐車
ブレーキ状態にすることができる。係止片は、従来通り
の高さ位置にあるので、降車状態でのブレーキレバー操
作も行うことができる。そして、操作片と係止片とを連
動連結する操作軸は単に上下軸心周りに回動するだけで
あるから、操作軸を回動自在に操縦塔に支持させる構造
に要するスペースは、操作軸を配設する分のみのもので
良く、例えば、ブレーキレバーに上方に突出するハンド
ブレーキレバーを設けるとか、揺動するレバーを係止片
に連動連結させる場合に比べて、配設スペースが少なく
て済むものとなる。請求項2の構成では、上記作用に加
えて、ブレーキペダルを踏み込み操作するだけで駐車ブ
レーキ状態が解除されるので、操作片の操作を伴うこと
なく簡単に走行可能状態への移行操作が行えるととも
に、さらにブレーキペダルを踏み込むことによって駐車
ブレーキの解除を行うから、坂道での再発進時等におけ
る駐車ブレーキ解除操作途中で一時的にノーブレーキ状
態となって機体がずれ動くことがなく、安全上好都合で
ある。請求項1及び2の構成では、駐車ブレーキ作動を
行おうとする時点において係止片を操作しながらブレー
キレバーの下げ操作を行う2種の操作が必要であるが、
請求項3の構成では、一時保持機構の作用によって操作
片を駐車ブレーキ位置に係止保持できるので、予め操作
片を駐車ブレーキ位置に操作しておくことにより、実際
に駐車ブレーキを作動するときにはブレーキペダルの踏
み込み操作(あるいはブレーキレバーの引き下げ操作)
のみをするだけで良いようにできる作用が追加される。
そして、ブレーキペダルの戻り付勢力は弾性手段による
操作軸の下方付勢力よりも強いものに設定されているか
ら、駐車ブレーキ状態ではブレーキレバーが係止片を介
して操作軸を持上げ移動させる。すると、凹入部から操
作片が上方に逃げ移動して弾性手段の回動付勢力によっ
て退避姿勢に復帰しようとするが、ブレーキレバーと係
止片との係合によってその復帰移動が阻止されることに
なる。つまり、退避姿勢への復帰可能状態が現出されて
おり、ブレーキペダルの踏込み又はブレーキレバー引下
げという単一操作により、係止片とブレーキレバーとの
係合を解いて駐車ブレーキ状態が解除され、退避姿勢に
復帰させることができるようになる。
According to the first aspect of the present invention, the operating piece of the locking piece for locking and holding the brake lever at the brake operating position is lifted upward via the operating shaft, so that it is seated on the driver's seat. The operation of changing the position of the locking piece can be performed freely while maintaining the riding position. In other words, in the riding posture, the brake pedal is depressed to the brake operating position, and if the operation piece is rotated in this state, the locking piece can be locked and the brake lever can be locked and held, and the upper body can be bent down as in the conventional case. The parking brake state can be set without the need. Since the locking piece is at the same height position as before, it is possible to operate the brake lever in the state of getting off. The operation shaft for interlockingly connecting the operation piece and the locking piece simply rotates about the vertical axis, so the space required for the structure in which the operation shaft is rotatably supported by the control tower is the operation shaft. For example, a hand brake lever that protrudes upward is provided on the brake lever, or the arrangement space is smaller than when the swinging lever is interlocked with the locking piece. It will be done. According to the configuration of the second aspect, in addition to the above operation, the parking brake state is released only by depressing the brake pedal, so that the shift operation to the travelable state can be easily performed without operating the operation piece. In addition, the parking brake is released by depressing the brake pedal further, so there is no braking state temporarily during the parking brake release operation such as when restarting on a slope, etc. It is. In the configuration of the first and second aspects, at the time when the parking brake is to be operated, two types of operations of lowering the brake lever while operating the locking piece are necessary,
According to the configuration of the third aspect, the operation piece can be locked and held at the parking brake position by the action of the temporary holding mechanism. Therefore, by operating the operation piece to the parking brake position in advance, the brake is used when the parking brake is actually operated. Depressing the pedal (or lowering the brake lever)
An action can be added that can be achieved by just doing only.
Since the return urging force of the brake pedal is set to be stronger than the downward urging force of the operation shaft by the elastic means, the brake lever lifts and moves the operation shaft via the locking piece in the parking brake state. Then, the operation piece escapes upward from the recessed portion and attempts to return to the retracted position by the rotational urging force of the elastic means, but the return movement is prevented by the engagement between the brake lever and the locking piece. become. In other words, a state in which it is possible to return to the evacuation position has appeared, and by a single operation of depressing the brake pedal or lowering the brake lever, the locking piece is disengaged from the brake lever to release the parking brake state, It is possible to return to the evacuation position.

【0006】[0006]

【考案の効果】従って、請求項1記載の駐車ブレーキ装
置では、乗車状態と降車状態のいずれにおいても簡単・
便利にブレーキ操作できるようになるとともに、そのた
めの操作機構を場所を取らない省スペース型の機構に構
成することができた。請求項2記載の駐車ブレーキ装置
では、上記効果に加えて、駐車ブレーキの解除操作の簡
単化を、良好な安全性を伴いながら実現できるようにな
る。請求項3記載の駐車ブレーキ装置では、駐車ブレー
キ作動操作の分割操作可能構成により、手動及び踏み込
みのいずれにおいても駐車ブレーキ作動及び解除時の操
作を簡単・楽に行えるようにできる利点をも有したもの
にできた。
Therefore, in the parking brake device according to the first aspect of the present invention, the parking brake device can be easily operated in both the on-board state and the off-board state.
The brakes can be operated conveniently, and the operation mechanism for that can be configured as a space-saving mechanism that does not take up space. In the parking brake device according to the second aspect, in addition to the above effects, the simplification of the release operation of the parking brake can be realized with good safety. The parking brake device according to the third aspect also has an advantage that the operation at the time of parking brake operation and release can be performed easily and easily both manually and by depressing, by the structure capable of dividing the parking brake operation operation. I was able to.

【0007】[0007]

【実施例】以下に、本考案の実施例を作業車の一例であ
るコンバインの場合について、図面に基づいて説明す
る。図3にコンバイン前部の操縦部Aが示され、1は運
転席、2は頂部に各種操作具を配備した操縦塔、3はフ
ロア、4はブレーキペダル、5は原動部である。このコ
ンバインでは、運転席1に着座した乗車状態と、機体か
ら降りた降車状態のどちらでも駐車ブレーキを作動でき
る駐車ブレーキ装置Bが設けてある。図1、図2に示す
ように、降車状態での駐車ブレーキ操作用のブレーキレ
バー6が前方に突出する状態で、図示しないバネによっ
て支点X周りで上方へ戻り付勢されるブレーキペダル4
に固着してあるとともに、乗車姿勢での駐車ブレーキ操
作用の操作機構Cが操縦塔2の右後部に配備してある。
操作機構Cは、係止片7と操作軸8と操作片9とから成
り、ブレーキレバー6をその上方への戻り移動を阻止し
て係止保持可能な係止片7を下端部に、かつ、運転席1
への着座姿勢において手動操作可能な操作片9を上端部
に夫々取付けた操作軸8を、上下軸心Z周りで回動自在
となるように上ステー10としたステー11とで操縦塔
2に支承させるとともに、操作片9の回動操作により、
係止片7とブレーキレバー6とが干渉しない退避姿勢
と、ブレーキ作動位置ONにあるブレーキレバー6をそ
の作動位置ONに係止保持をするべく該ブレーキレバー
6の上下移動経路に張り出した牽制姿勢とが現出される
状態に、係止片7の揺動姿勢を変更自在である。また、
操作軸8を操縦塔2に対して下方に押圧付勢するととも
に操作軸8を図2中時計周り方向に回動付勢する巻きス
プリング(押圧手段に相当)12を、下ステー11と係
止片7の間において操作軸8に外嵌装着してある。この
巻きスプリング12の下方への押圧力と上ステー10の
上面側に設けた下向きの凹入部13との協動により、係
止片7が牽制姿勢〔図1(ロ)の状態〕にあるときに丸
棒で成る操作片9を凹入部13へ落とし込み係合し、操
作軸8を巻きスプリング12の回動付勢力に抗して係止
させる一時保持機構14を構成するとともに、係止片7
とブレーキレバー6とが干渉する駐車ブレーキ状態〔図
1(ハ)の状態〕の現出により、操作片9と凹入部13
との係合が解消されるべく、ブレーキレバー6が操作軸
8を持ち上げ移動する状態に、巻きスプリング12の下
方への押圧付勢力とブレーキペダル4の戻り付勢力とを
関係付けて設定してある。係止片7は、図1(ロ)に示
すように先端が先細りとなるように上及び下傾斜縁1
5,16が施され、かつ、ブレーキレバー6が入り込み
係合する下向きの切欠き17が形成された鉤状の板材で
成り、ブレーキレバー6は、縦板状のバネ鋼で成り、横
方向には弾性変形可能である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings, in the case of a combine as an example of a work vehicle. FIG. 3 shows a control section A in the front of the combine, where 1 is a driver's seat, 2 is a control tower provided with various operating tools on the top, 3 is a floor, 4 is a brake pedal, and 5 is a driving section. In this combine, a parking brake device B is provided that can operate the parking brake in either a riding state in which the driver is seated in the driver's seat 1 or a getting-off state in which the driver gets off the body. As shown in FIGS. 1 and 2, a brake pedal 4 that is urged by a spring (not shown) to return upward around a fulcrum X in a state in which a parking brake operating brake lever 6 projects forward when the vehicle is getting off.
An operating mechanism C for operating the parking brake in the riding position is provided at the right rear of the control tower 2.
The operating mechanism C includes a locking piece 7, an operating shaft 8, and an operating piece 9, and has a locking piece 7 at a lower end portion capable of preventing the brake lever 6 from returning upward and locking and holding the same. , Driver's seat 1
The operation shaft 8 in which the operation pieces 9 which can be manually operated in the sitting posture are attached to the upper end, respectively, and the stay 11 which is the upper stay 10 so as to be rotatable around the vertical axis Z on the control tower 2. In addition to being supported, by rotating the operation piece 9,
A retracting posture in which the locking piece 7 and the brake lever 6 do not interfere with each other, and a retracting posture in which the brake lever 6 at the brake operating position ON projects and extends in a vertical movement path of the brake lever 6 in order to lock and hold the brake lever 6 at the operating position ON. The swinging posture of the locking piece 7 can be changed freely in a state where appears. Also,
A winding spring (corresponding to a pressing means) 12, which urges the operation shaft 8 downwardly against the control tower 2 and urges the operation shaft 8 to rotate clockwise in FIG. An external fitting is mounted on the operation shaft 8 between the pieces 7. When the locking piece 7 is in the restraining posture (the state shown in FIG. 1B) due to the cooperation between the downward pressing force of the winding spring 12 and the downward recess 13 provided on the upper surface side of the upper stay 10. And a temporary holding mechanism 14 for dropping and engaging the operation piece 9 formed of a round bar into the recess 13 to lock the operation shaft 8 against the urging force of the winding spring 12.
The operation piece 9 and the recess 13 are caused by the appearance of the parking brake state (the state shown in FIG.
In such a state that the brake lever 6 lifts and moves the operation shaft 8 so that the engagement with the brake lever 6 is lifted, the urging force of the winding spring 12 and the urging force of the brake pedal 4 are set in relation to each other. is there. As shown in FIG. 1 (b), the locking piece 7 has upper and lower inclined edges 1 so that the tip is tapered.
5 and 16 are provided, and a hook-shaped plate member is formed with a downward notch 17 into which the brake lever 6 enters and engages. The brake lever 6 is formed of a vertical plate-shaped spring steel and is formed in a lateral direction. Is elastically deformable.

【0008】次に、この駐車ブレーキ装置Bの操作手順
を説明する。 乗車時 先ず、退避姿勢〔図1(イ)の状態〕にある操作片9を
回動移動して、図1(ロ)に示すように係止片7を駐車
ブレーキ位置Pに操作する。すると、巻きスプリング1
2の下方押圧付勢力によって操作片9が凹入部13に嵌
まり込み、巻きスプリング12の回動押圧付勢力に打ち
勝って係止片7を(操作機構Cを)牽制姿勢に係止保持
する状態になる。次に、ブレーキペダル4を踏み込み操
作すると、係止片7の上傾斜縁15との接当によってブ
レーキレバー6が横方向へ弾性変形するとともに、下傾
斜縁16にも沿って該係止片7をやり過ごし、切欠き1
7の直下位置にブレーキレバー6が配置されるようにな
り、そこで踏み込み操作を中止するとブレーキレバー6
が切欠き17に嵌まり込み、図1(ハ)に示すように駐
車ブレーキ位置ONに係止保持されるのである。そし
て、ブレーキペダル4の戻り力によるブレーキレバー6
の上昇付勢力により、巻きスプリング12の下方押圧付
勢力に打ち勝って係止片7を、即ち操作機構Cを上に持
ち上げるようになり、その結果、操作片9が凹入部13
から抜け出し、かつ、切欠き17とブレーキレバー6と
の係合部寸法誤差によって生ずるガタによって操作軸8
が若干時計周り方向に回動移動し、操作片9が上ステー
10の上面に乗った状態で落ち着いた駐車ブレーキ状態
が現出される。そして、上記駐車ブレーキ状態を解除さ
せるには、ブレーキペダル4をさらに踏み込み操作して
ブレーキレバー6を切欠き17から下方に抜き移動し
て、巻きスプリング12の回動付勢力によって係止片7
を退避姿勢に自動復帰させるのである。それによって図
1(ニ)に示すように、ブレーキレバー6と係止片7と
の干渉が解消されてブレーキペダル4は非ブレーキ作動
位置OFFに戻るようになる。 降車時 先ず、乗車状態において予め操作片9を操作して、前述
したように係止片7が牽制姿勢となる状態に操作機構C
を係止保持させておく。次に、降車してからブレーキレ
バー6を手動操作して下方に揺動移動させれば、前述し
た作用によってブレーキレバー6が切欠き17に嵌まり
込んだ駐車ブレーキ状態となる。そして、ブレーキレバ
ー6をさらに下げ揺動移動させると、乗車時における駐
車ブレーキの解除操作と同様の作用によって操作機構C
が自動的に上下軸心Z周りで時計周り方向に回動移動
し、それによって駐車ブレーキ解除操作が随行されるの
である。
Next, an operation procedure of the parking brake device B will be described. First, the operating piece 9 in the evacuation posture (the state shown in FIG. 1A) is rotated to move the locking piece 7 to the parking brake position P as shown in FIG. Then, winding spring 1
2, the operation piece 9 is fitted into the recess 13 by the downward pressing urging force, and the locking piece 7 is locked and held in the restraining posture (the operation mechanism C) by overcoming the rotational pressing urging force of the winding spring 12. become. Next, when the brake pedal 4 is depressed, the brake lever 6 is elastically deformed in the lateral direction by contact with the upper inclined edge 15 of the locking piece 7, and the locking piece 7 is moved along the lower inclined edge 16. Overtake, notch 1
7, the brake lever 6 is arranged at a position immediately below the brake lever 6, and when the depressing operation is stopped there, the brake lever 6
Fits into the notch 17 and is locked and held at the parking brake position ON as shown in FIG. Then, the brake lever 6 by the return force of the brake pedal 4
, The locking piece 7, that is, the operating mechanism C is lifted up by overcoming the downward pressing biasing force of the winding spring 12, and as a result, the operating piece 9 is
Of the operating shaft 8 due to play caused by a dimensional error of the engaging portion between the notch 17 and the brake lever 6.
Slightly pivots clockwise, and a calm parking brake state appears with the operation piece 9 riding on the upper surface of the upper stay 10. In order to release the parking brake state, the brake pedal 4 is further depressed and the brake lever 6 is pulled out from the notch 17 and moved downward.
Is automatically returned to the evacuation position. Thereby, as shown in FIG. 1D, the interference between the brake lever 6 and the locking piece 7 is eliminated, and the brake pedal 4 returns to the non-brake operating position OFF. At the time of dismounting First, the operating member 9 is operated in advance in the riding state, and the operating mechanism C is brought into a state in which the locking piece 7 is in the restraining posture as described above.
Is locked and held. Next, if the brake lever 6 is manually operated to swing downward after dismounting, a parking brake state in which the brake lever 6 is fitted into the notch 17 by the above-described operation is established. When the brake lever 6 is further lowered and oscillated, the operation mechanism C is operated by the same operation as the release operation of the parking brake at the time of riding.
Automatically pivots clockwise about the vertical axis Z, thereby following the parking brake release operation.

【0009】尚、実用新案登録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
考案は添付図面の構成に限定されるものではない。
In the claims of the utility model registration, reference numerals are written for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

【図面の簡単な説明】[Brief description of the drawings]

【図1】駐車ブレーキ装置の操作手順を示す作用図FIG. 1 is an operation diagram showing an operation procedure of a parking brake device.

【図2】駐車ブレーキ解除状態を示す操作機構の平面図FIG. 2 is a plan view of an operation mechanism showing a parking brake released state.

【図3】コンバインの操縦部を示す側面図FIG. 3 is a side view showing a control unit of the combine.

【符号の説明】[Explanation of symbols]

1 運転席 2 操縦塔 4 ブレーキペダル 7 係止片 8 操作軸 9 操作片 12 弾性手段 13 凹入部 14 一時保持機構 C 操作機構 Z 上下軸心 d 弾性手段 DESCRIPTION OF SYMBOLS 1 Driver's seat 2 Control tower 4 Brake pedal 7 Locking piece 8 Operating shaft 9 Operating piece 12 Elastic means 13 Recessed part 14 Temporary holding mechanism C Operating mechanism Z Vertical axis d Elastic means

Claims (3)

(57)【実用新案登録請求の範囲】(57) [Scope of request for utility model registration] 【請求項1】 操縦塔(2)とこれの後に配置の運転席
(1)との間にブレーキペダル(4)を配設してあると
ともに、このブレーキペダル(4)に、降車状態におけ
る手動操作でのブレーキ作動を可能とするためのブレー
キレバー(6)を取付けてある作業車の駐車ブレーキ装
置であって、前記ブレーキレバー(6)をその上方への
戻り移動を阻止して係止保持可能な係止片(7)を下端
部に、かつ、前記運転席(1)への着座姿勢において手
動操作可能な操作片(9)を上端部に夫々取付けた操作
軸(8)を、上下軸心(Z)周りで回動自在に前記操縦
塔(2)に支承させるとともに、前記操作片(9)の回
動操作により、前記係止片(7)と前記ブレーキレバー
(6)とが干渉しない退避姿勢と、ブレーキ作動位置に
ある前記ブレーキレバー(6)をその作動位置に係止保
持をするべく該ブレーキレバー(6)の上下移動経路に
張り出した牽制姿勢とが現出される状態に、前記係止片
(7)の姿勢を変更自在とする操作機構(C)を構成し
てある作業車の駐車ブレーキ装置。
A brake pedal (4) is arranged between a control tower (2) and a driver's seat (1) arranged behind the control tower (2), and the brake pedal (4) is manually operated in a dismounting state. A parking brake device for a work vehicle to which a brake lever (6) for enabling a brake operation in operation is mounted, wherein the brake lever (6) is prevented from returning upward and locked and held. An operating shaft (8) having a movable locking piece (7) attached to a lower end thereof and an operation piece (9) manually operable in a sitting posture of the driver's seat (1) attached to an upper end thereof is vertically moved. The control tower (2) is rotatably supported around the axis (Z), and the locking piece (7) and the brake lever (6) are rotated by the operation of the operation piece (9). The evacuation posture without interference and the brake lever in the brake operation position The posture of the locking piece (7) is changed to a state in which the bar (6) is brought into the retracted posture that protrudes in the vertical movement path of the brake lever (6) so as to lock and hold the bar (6) in its operating position. A parking brake device for a working vehicle, comprising an operating mechanism (C) that can be freely operated.
【請求項2】 牽制姿勢にある前記係止片(7)によ
り、前記ブレーキレバー(6)をブレーキ作動位置に係
止保持しての駐車ブレーキ状態における前記ブレーキペ
ダル(4)の踏み込み操作に伴って、前記操作軸(8)
が、前記係止片(7)が前記牽制姿勢から前記退避姿勢
に移動する方向に自動的に回動操作されるように、前記
操作軸(8)に弾性手段(d)による回動付勢力を付与
してある請求項1記載の作業車の駐車ブレーキ装置。
2. A depressing operation of the brake pedal (4) in a parking brake state in which the brake lever (6) is locked and held at a brake operating position by the locking piece (7) in a restraining posture. And the operating axis (8)
However, the operating shaft (8) is turned by an elastic means (d) so that the locking piece (7) is automatically turned in the direction of moving from the restrained position to the retracted position. The parking brake device for a working vehicle according to claim 1, further comprising:
【請求項3】 前記操作軸(8)を前記操縦塔(2)に
対して下方に押圧付勢する押圧手段(12)を設け、こ
の押圧手段(12)の下方への押圧力と操縦塔側に設け
た下向きの凹入部(13)との協動により、前記係止片
(7)が牽制姿勢にあるときに前記操作片(9)を前記
凹入部(13)へ落とし込み係合し、前記操作軸(8)
を前記弾性手段(d)の回動付勢力に抗して係止させる
一時保持機構(14)を構成するとともに、牽制姿勢の前記係止片(7)によって前記ブレーキレバ
ー(6) がブレーキ作動位置に係止保持される前記駐車ブ
レーキ状態が現出されると、前記ブレーキレバー(6)
が前記操作軸(8)を持ち上げ移動して、前記操作片
(9)と前記凹入部(13)との係合が解かれるよう
に、前記押圧手段(12)の付勢力と前記ブレーキペダ
ル(4)の戻り付勢力とを設定してある 請求項2記載の
作業車の駐車ブレーキ装置。
3. A pressing means (12) for pressing the operating shaft (8) downward against the control tower (2) is provided, and a downward pressing force of the pressing means (12) and the control tower are provided. By cooperating with the downward recessed portion (13) provided on the side, the operating piece (9) is dropped into the recessed portion (13) and engaged when the locking piece (7) is in the restraining posture, The operating shaft (8)
And a temporary holding mechanism (14) for locking the brake lever against the rotational urging force of the elastic means (d), and the brake lever (7) in the restraining posture is used for the brake lever.
ー (6) is locked and held in the brake operation position.
When the rake state appears, the brake lever (6)
Lifts and moves the operation shaft (8), and
(9) and the recess (13) are disengaged from each other.
The urging force of the pressing means (12) and the brake pedal
3. The parking brake device for a working vehicle according to claim 2, wherein a return biasing force of the lever (4) is set .
JP6440991U 1991-08-14 1991-08-14 Parking brake device for work vehicles Expired - Fee Related JP2542594Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6440991U JP2542594Y2 (en) 1991-08-14 1991-08-14 Parking brake device for work vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6440991U JP2542594Y2 (en) 1991-08-14 1991-08-14 Parking brake device for work vehicles

Publications (2)

Publication Number Publication Date
JPH0516532U JPH0516532U (en) 1993-03-02
JP2542594Y2 true JP2542594Y2 (en) 1997-07-30

Family

ID=13257480

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6440991U Expired - Fee Related JP2542594Y2 (en) 1991-08-14 1991-08-14 Parking brake device for work vehicles

Country Status (1)

Country Link
JP (1) JP2542594Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017079605A (en) * 2015-10-23 2017-05-18 ヤンマー株式会社 combine

Also Published As

Publication number Publication date
JPH0516532U (en) 1993-03-02

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