JPH02273815A - Structure of lever attachment part of work vehicle - Google Patents
Structure of lever attachment part of work vehicleInfo
- Publication number
- JPH02273815A JPH02273815A JP9601689A JP9601689A JPH02273815A JP H02273815 A JPH02273815 A JP H02273815A JP 9601689 A JP9601689 A JP 9601689A JP 9601689 A JP9601689 A JP 9601689A JP H02273815 A JPH02273815 A JP H02273815A
- Authority
- JP
- Japan
- Prior art keywords
- lever
- operating
- linking
- support member
- retreating
- 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
- 230000010355 oscillation Effects 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 210000001217 buttock Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Landscapes
- Mechanical Control Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、運転座席の横側に操作レバーを配設し、前記
操作レバーを操作揺動自在にレバー支持部材に支持させ
るとともに、前記操作レバーを所定操作位置で°ロック
し、並びに6ツタ解除操作自在なレバーロック部材を設
けてある作業車のレバー取付部構造に関する。Detailed Description of the Invention [Industrial Field of Application] The present invention provides an operating lever that is disposed on the side of a driver's seat, is supported by a lever support member so as to be swingable, and that the operating lever is The present invention relates to a lever mounting structure for a working vehicle, which is provided with a lever locking member that locks the lever at a predetermined operating position and that can be freely operated to release the six levers.
従来の上記レバー取付部構造としては、例えば実開昭6
0−115964号公報に開示されているように、操作
レバーと被操作対象とをリンク機構で連動連係させると
ともに、ロックレバ−のロック作用位置への切換え操作
に連動して、リンク機構における連係用押引きロッドの
途中部が屈曲し、それに伴い操作レバーが後方側に退避
揺動するよう構成したものがあった。As for the conventional structure of the above-mentioned lever mounting part, for example,
As disclosed in Japanese Patent No. 0-115964, the operating lever and the operated object are interlocked by a link mechanism, and the link mechanism is operated by a linking pusher in conjunction with the switching operation of the lock lever to the locking position. Some models were designed so that the middle part of the pull rod was bent, and the operating lever was retracted and swung rearward accordingly.
上記引例の構造は、通常の運転作業時には操作レバーを
運転座席の側方前部に位置させて操作性を良くするとと
もに、乗降時には操作レバーを後方側に退避揺動させて
運転者の乗降用通路の前後幅を大きくして乗降しやすく
するよう考慮したものである。The structure in the above reference improves operability by locating the control lever at the side and front of the driver's seat during normal driving work, and by retracting and swinging the control lever to the rear when getting on and off, allowing the driver to get in and out of the vehicle. The front and back width of the passageway was increased to make it easier to get on and off the train.
ところが、上記したように、連係用押引きロッドを屈曲
させる構造であるので、長期間の使用によりその屈曲枢
支部においてレバー操作時にガタつきが生じて、操作レ
バーの操作感覚が異なったものになってしまうおそれが
あるという欠点を有していた。又、操作レバーは操作揺
動軸芯の周りで後方側に退避揺動する構造であるので、
運転座席の側方上部に位置することになり、例えば、急
いで機体に乗り込む際に臀部が操作レバーに当たってし
まうおそれがある等の問題があり改善の余地があった。However, as mentioned above, since the linking push/pull rod is bent, after long-term use, the bending pivot portion becomes loose when the lever is operated, resulting in a different feeling when operating the operating lever. This has the disadvantage that there is a risk that the In addition, the operating lever is structured to retract and swing rearward around the operating swing axis.
Since it is located above the side of the driver's seat, there is a problem that, for example, there is a risk that the buttocks will hit the control lever when getting into the aircraft in a hurry, so there is room for improvement.
本発明の目的は、合理的構造改良によって、上記不具合
点を解消する点にある。An object of the present invention is to eliminate the above-mentioned disadvantages through rational structural improvements.
〔課題を解決するための手段〕
本発明の特徴は、冒頭に記載した作業車のレバー取付部
構造において、前記操作レバーと被操作対象とを操作ワ
イヤを介して連動連係させるとともに、前記レバー支持
部材を前記操作レバーが前記運転座席の側方前部にある
作用位置と前記操作レバーが後方外方側に退避傾動した
レバー退避位置とに亘り下部の軸芯周りで切換揺動自在
に機体側に取付け、前記レバーロック部材のロック解除
位置からロック作用位置への操作に伴って、前記レバー
支持部材を前記レバー退避位置に位置変更させる連係機
構を設けてある点にあり、その作用・効果は次の通りで
ある。[Means for Solving the Problems] A feature of the present invention is that in the lever mounting structure of a working vehicle described at the beginning, the operating lever and the operated object are interlocked and linked via an operating wire, and the lever support The member can be freely switched and swung around a lower axis between an operating position in which the operating lever is in the front side of the driver's seat and a lever retracted position in which the operating lever is retracted and tilted to the rear and outward side. The mechanism is attached to the lever and is provided with a linkage mechanism that changes the position of the lever support member to the lever retracted position as the lever lock member is operated from the unlocked position to the locking position. It is as follows.
つまり、操作レバーを屈曲変形自在な操作ワイヤで連係
させる構造であるので、操作レバーをその操作軸芯と無
関係な軸芯の周りで退避揺動させることができるととも
に、退避移動に拘らず常に適正な操作連係状態を維持で
きる。In other words, since the operating lever is linked with a bendable and deformable operating wire, the operating lever can be retracted and swung around an axis that is unrelated to the operating axis, and it is always properly adjusted regardless of the retracting movement. It is possible to maintain a state of operational coordination.
しかも、レバーロック部材の切換操作に伴って、操作レ
バーは、それを支持するレバー支持部材の下部の軸芯周
りで、かつ、後方、外方側即ち斜め後方側に退避するの
で、退避移動量が大きく、運転座席から遠ざかることに
なる。Moreover, as the lever lock member is switched, the operating lever retracts around the axis of the lower part of the lever support member that supports it, and backward, outward, that is, diagonally rearward, so the amount of retraction movement is large and will move away from the driver's seat.
その結果、レバーロック部材の操作のみで操作レバーを
運転者の乗降経路から退避させることができるとともに
、操作レバーの操作感覚を異ならせることなく長期間に
亘り安全な作業を行えることになった。又、操作レバー
は運転座席から遠ざかる方向で、かつ、運転者の乗降経
路を広げる方向に退避するので、運転者の身体が操作レ
バーに接触するおそれが更に少なくなり、−層乗降を楽
に行えるものになった。As a result, the operating lever can be moved out of the driver's boarding and alighting path simply by operating the lever lock member, and work can be carried out safely over a long period of time without changing the operating feel of the operating lever. In addition, since the control lever is retracted in a direction away from the driver's seat and in a direction that widens the path for the driver to get on and off the vehicle, the risk of the driver's body coming into contact with the control lever is further reduced, making boarding and alighting easier. Became.
以下、本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.
第7図に本発明に係る作業車の一例であるバックホウを
示している。このバックホウは、走行機体上に縦軸芯周
りで全旋回自在に旋回台(1)を搭載するとともに、こ
の旋回台(1)に掘削作業装置(2)を取付け、上部に
運転部(3)を配設しである。FIG. 7 shows a backhoe which is an example of a working vehicle according to the present invention. This backhoe has a swivel base (1) mounted on the traveling body that can rotate freely around the vertical axis, an excavation work device (2) attached to the swivel base (1), and a driving unit (3) mounted on the top. It is arranged.
前記掘削作業装置(2)は、スイングブラケット(4)
を介して格納揺動自在に取付けられ、3個の油圧シリン
ダ(5)、 (6)、 (7)により各別に揺動駆動さ
れるブーム(8)、アーム(9)及び、パケット(10
)から成り、この掘削作業装置(2)及び旋回台(1)
の駆動操作は、運転座席(11)の横側に配設した操作
レバー(12)の操作によって油圧制御バルブ(図示せ
ず)を制御することで行うよう構成しである。The excavation work device (2) includes a swing bracket (4)
The boom (8), arm (9), and packet (10
), this excavation work equipment (2) and a swivel table (1)
The driving operation is performed by controlling a hydraulic control valve (not shown) by operating an operating lever (12) disposed on the side of the driver's seat (11).
次に、前記操作レバー(12)の取付部構造について説
明する。Next, the structure of the mounting portion of the operating lever (12) will be explained.
第1図ないし第5図に示すように、前記操作レバー(1
2)は、前後向き軸芯(Xl)及び左右向き軸芯(Yl
)の周りで揺動操作自在にレバー支持部材(13)に支
持してあり、前記レバー支持部材(13)は、下部の軸
芯(Xり周りで、操作レバー(12)が運転座席(11
)の側方前部にある作用位置操作レバー(12)が外方
後方側に退避傾動したレバー退避位置とに亘り揺動自在
に機体側に取付けである。詳述すると、操作レバー(1
2)の基端側を外囲する機体側の部材であるレバーケー
ス(14)に支持ブラケット(15)を取付固定すると
ともに、この支持ブラケット(15)に対して操作レバ
ー(12)の左右揺動軸芯(Yt)よりも後方側に偏位
した位置で、かつ、下方側の内方側程後方に偏位した傾
斜した軸芯(X2)周りで揺動自在にレバー支持部材(
13)をピン(16)枢支してあり、レバー支持部材(
13)に一体形成しである縦筒ボス部(17)にレバー
枢支部材(18)の縦筒部(19)を内嵌させて回動可
能に支持しである。前記レバー枢支部材(18)は、ベ
アリング(20)を介して、前後軸芯(Yl)周りに回
動自在に第1回動部材(21)を支承するとともに、第
1回動部材(21)に左右軸芯(Yl)周りで相対回動
自在に第2回動部材(22)を取付けである。前記第2
回動部材(22)の前後軸芯(X、)上で、かつ、左右
軸芯(Y、)から前方側に偏芯した位置で、相対回動自
在なボールジヨイント(23)を介して第1操作ワイヤ
(24)を連係させるとともに、第2回動部材(22)
の左右軸芯(Yl)上で、かつ、前後軸芯(Xl)から
内方側に偏芯した位置で相対回動自在なボールジヨイン
ト(25)を介して第2操作ワイヤ(26)を連係させ
、両操作ワイヤ(24)、 (26)を被操作対象であ
る油圧制御バルブ(図示せず)に連動連係させである。As shown in FIGS. 1 to 5, the operating lever (1
2) is the front-back axis (Xl) and the left-right axis (Yl).
), and the lever support member (13) is supported by a lever support member (13) so as to be swingable around the lower axis (
) is attached to the fuselage side so that it can swing freely between an operating position operating lever (12) located at the front side of the lever (12) and a lever retracted position in which it is retracted and tilted outward to the rear side. In detail, the operation lever (1
The support bracket (15) is attached and fixed to the lever case (14), which is a member on the machine body that surrounds the proximal end of The lever support member (
13) is pivotally supported by a pin (16), and the lever support member (
The vertical cylinder boss part (17) integrally formed with the lever pivot support member (18) is fitted inside the vertical cylinder boss part (17) to rotatably support the lever pivot support member (18). The lever pivot member (18) supports the first rotating member (21) rotatably around the longitudinal axis (Yl) via the bearing (20), and also supports the first rotating member (21 ), the second rotating member (22) is attached so as to be relatively rotatable around the left and right axis (Yl). Said second
Via a relatively rotatable ball joint (23) on the front-back axis (X,) of the rotating member (22) and at a position eccentrically forward from the left-right axis (Y,) While linking the first operating wire (24), the second rotating member (22)
The second operating wire (26) is connected via a ball joint (25) that is relatively rotatable on the left-right axis (Yl) and at a position eccentrically inward from the front-rear axis (Xl). The operating wires (24) and (26) are linked to a hydraulic control valve (not shown) to be operated.
このようにして操作レバー(12)を中立位置から前後
揺動させることで第1操作ワイヤ(24)のみを操作で
き、左右揺動させることで第2操作ワイヤ(26)のみ
操作できるよう構成しである。又、前記レバー枢支部材
(18)は前記第1回動部材(21)と前記第2回動部
材(22)とを共に片持ち状に支持するよう構成しであ
る。In this way, by swinging the operating lever (12) back and forth from the neutral position, only the first operating wire (24) can be operated, and by swinging it left and right, only the second operating wire (26) can be operated. It is. Further, the lever pivot member (18) is configured to support both the first rotating member (21) and the second rotating member (22) in a cantilevered manner.
そして、前記操作レバー(12)を中立位置でロックす
るためのレバーロック部材(27)を、前記レバーケー
ス(14)の前方側外方に突出した作用位置とレバーケ
ース(14)の前面に近接した解除位置と亘り切換揺動
自在に設けてある。詳述すると、前記レバーロック部材
(27)の基端側の横向き支軸(28)を前記支持ブラ
ケット(15)の下面に固定したボス部(29)に挿通
支持してあり、このボス部(29)と横向き支軸(28
)との間に位置保持用コイルバネ(30)を介装しであ
る。そして、前記レバーロック部材(27)の解除位置
から作用位置への操作に伴って、前記レバー支持部材(
13)を外方後方傾動位置に位置変更させる連係機構を
設けてある。つまり、前記横向き支軸(28)の途中部
からL字形駆動アーム(31)を連設するとともに、前
記レバー枢支部材(18)の縦筒部(19)内にスライ
ド自在にスライドロッド(32)を内嵌させ、このスラ
イドロッド(32)の下端に連設した板状部(33)の
長孔(34)に前記駆動アーム(31)の遊端側を係合
させである。つまり、レバーロック部材(27)の切換
揺動に連動して前記スライドロッド(32)が上下にス
ライドし、上端までスライドするとその上部が前記第2
回動部材(22)の下部に形成した係合孔(35)に係
入して操作レバー(12)の揺動を規制し中立位置にロ
ックさせるよう構成しである。A lever locking member (27) for locking the operating lever (12) at a neutral position is located at an operating position protruding outward from the front side of the lever case (14) and close to the front surface of the lever case (14). It is provided so that it can be freely switched between the released position and the released position. Specifically, the horizontal support shaft (28) on the proximal end side of the lever lock member (27) is inserted into and supported by a boss part (29) fixed to the lower surface of the support bracket (15). 29) and horizontal support shaft (28
) A position-holding coil spring (30) is interposed between the two. Then, as the lever lock member (27) is operated from the release position to the operating position, the lever support member (27) is moved from the release position to the operating position.
13) is provided with an interlocking mechanism for repositioning it to an outward rearward tilting position. That is, the L-shaped drive arm (31) is connected to the middle part of the horizontal support shaft (28), and the slide rod (32) is slidably inserted into the vertical cylinder part (19) of the lever pivot support member (18). ) is fitted inside, and the free end side of the drive arm (31) is engaged with the elongated hole (34) of the plate-like part (33) connected to the lower end of the slide rod (32). In other words, the slide rod (32) slides up and down in conjunction with the switching swing of the lever lock member (27), and when it slides to the upper end, the upper part is moved to the second position.
It is configured to engage an engagement hole (35) formed in the lower part of the rotating member (22) to restrict the swinging of the operating lever (12) and lock it in the neutral position.
そして、前記スライドロッド(32)が前記係合孔(3
5)に係入したロック位置から更にレバーロック部材(
27)をロック作用位置側へ操作すると、スライドロッ
ド(32)の先端が第1回動部材(21)の下面側に接
当してこれを押上げ、前記第1及び第2回動部材(21
)、 (22)、レバー枢支部材(18)及びレバー支
持部材(13)が一体的に前記斜め軸芯(X2)周りで
横外側方後方側に向けて傾動する。Then, the slide rod (32) is inserted into the engagement hole (3).
5) From the lock position where the lever lock member (
27) to the locking position, the tip of the slide rod (32) comes into contact with the lower surface of the first rotating member (21) and pushes it up, causing the first and second rotating members ( 21
), (22) The lever pivot support member (18) and the lever support member (13) integrally tilt laterally outward and rearward around the diagonal axis (X2).
そして傾動した状態で前記コイルバネ(30)の押圧摩
擦力により位置保持されるのである。その結果、操作レ
バー(12)が外側方に向けて退避揺動し、運転者が車
体に乗降する際に邪魔になるのを防止できるのである。In the tilted state, the position is maintained by the pressing friction force of the coil spring (30). As a result, the operating lever (12) can be prevented from swinging outward and becoming an obstacle when the driver gets on and off the vehicle.
前記駆動アーム(31)とスライドロッド(32)とで
前記連係機構を構成する。The drive arm (31) and the slide rod (32) constitute the linkage mechanism.
又、前記レバーロック部材(27)と一体回動する横向
き支軸(28)の他端側には、フック部(36)を連設
し、レバー中立ロックを解除した状態において、作用位
置に戻ったレバー支持部材(13)の係止ピン(37)
に前記フック部(36)が係合して、レバー支持部材(
13)を作用位置で位置固定させるよう構成し、操作レ
バー(12)がガタつくのを阻止するよう考慮しである
。Further, a hook portion (36) is provided on the other end side of the horizontal support shaft (28) that rotates together with the lever lock member (27), so that the hook portion (36) can be returned to the operating position when the lever neutral lock is released. Locking pin (37) of lever support member (13)
The hook portion (36) engages with the lever support member (
13) is configured to be fixed in the operating position, and consideration is given to preventing the operating lever (12) from wobbling.
尚、本発明はバックホウに限らずフロントローダ作業車
あるいはコンバイン等の農作業車等各種作業車に適用で
きる。Note that the present invention is applicable not only to backhoes but also to various work vehicles such as front loader work vehicles and agricultural vehicles such as combines.
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。Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.
図面は本発明に係る作業車のレバー取付部構造の実施例
を示し、第1図はレバー支持部材配設部の横断平面図、
第2図及び第4図は縦断側面図、第3図及び第5図は縦
断背面図、第6図は操作ワイヤ連係部の横断平面図、第
7図はバックホウの全体側面図である。
(11)・・・・・・運転座席、(12)・・・・・・
操作レバー、(13)・・・・・・レバー支持部材、(
24)、 (26)・・・・・・操作ワイヤ、(27)
・・・・・・レバーロック部材、(X2)・・・・・・
軸芯。The drawings show an embodiment of the structure of the lever attachment part of a working vehicle according to the present invention, and FIG. 1 is a cross-sectional plan view of the lever support member installation part;
2 and 4 are vertical side views, FIGS. 3 and 5 are vertical rear views, FIG. 6 is a cross-sectional plan view of the operating wire linking section, and FIG. 7 is an overall side view of the backhoe. (11)... Driver's seat, (12)...
Operation lever, (13)... Lever support member, (
24), (26)... operation wire, (27)
・・・・・・Lever lock member, (X2)・・・・・・
Axial core.
Claims (1)
、前記操作レバー(12)を操作揺動自在にレバー支持
部材(13)に支持させるとともに、前記操作レバー(
12)を所定操作位置でロックし、並びにロック解除操
作自在なレバーロック部材(27)を設けてある作業車
のレバー取付部構造であって、前記操作レバー(12)
と被操作対象とを操作ワイヤ(24)、(26)を介し
て連動連係させるとともに、前記レバー支持部材(13
)を、前記操作レバー(12)が前記運転座席(11)
の側方前部にある作用位置と前記操作レバー(12)が
後方外方側に退避傾動したレバー退避位置とに亘り下部
の軸芯(X_2)周りで切換揺動自在に機体側に取付け
、前記レバーロック部材(27)のロック解除位置から
ロック作用位置への操作に伴って、前記レバー支持部材
(13)を前記レバー退避位置に位置変更させる連係機
構を設けてある作業車のレバー取付部構造。An operating lever (12) is disposed on the side of the driver's seat (11), and the operating lever (12) is supported by a lever support member (13) so as to be swingable for operation.
12) is provided with a lever locking member (27) that locks the operating lever (12) at a predetermined operating position and is operable to release the lock, the operating lever (12)
and the object to be operated are interlocked and linked via the operation wires (24) and (26), and the lever support member (13)
), the operating lever (12) is connected to the driver's seat (11).
attached to the fuselage side so as to be able to freely switch and swing around the lower axis (X_2) between an operating position located at the front side of the lever and a lever retracted position where the operating lever (12) is retracted and tilted to the rear and outward side; A lever mounting part of a working vehicle, which is provided with a linkage mechanism that changes the position of the lever support member (13) to the lever retracted position when the lever lock member (27) is operated from the unlock position to the lock action position. structure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9601689A JPH02273815A (en) | 1989-04-14 | 1989-04-14 | Structure of lever attachment part of work vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9601689A JPH02273815A (en) | 1989-04-14 | 1989-04-14 | Structure of lever attachment part of work vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02273815A true JPH02273815A (en) | 1990-11-08 |
Family
ID=14153444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9601689A Pending JPH02273815A (en) | 1989-04-14 | 1989-04-14 | Structure of lever attachment part of work vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02273815A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009072115A (en) * | 2007-09-20 | 2009-04-09 | Orec Co Ltd | Riding-type tiller |
-
1989
- 1989-04-14 JP JP9601689A patent/JPH02273815A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009072115A (en) * | 2007-09-20 | 2009-04-09 | Orec Co Ltd | Riding-type tiller |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3655429B2 (en) | Control lever device for construction machinery | |
JP2000328604A (en) | Construction machine | |
US9534354B2 (en) | Construction machine | |
JPH02273815A (en) | Structure of lever attachment part of work vehicle | |
JPH02271410A (en) | Structure of lever fitting part in working vehicle | |
JP3666678B2 (en) | Control box opening and closing device | |
JP3798618B2 (en) | Driving control device for work vehicle | |
JPH0735882Y2 (en) | Construction machine control lever device | |
JP3742276B2 (en) | Construction machine cab | |
JPH02271409A (en) | Structure for lever fitting part in working vehicle | |
JP2003288127A (en) | Operation device for working machine | |
JPH0637092Y2 (en) | Working section of work vehicle | |
JP2000096626A (en) | Operation pattern changeover device for construction machine | |
JP3578707B2 (en) | Getting-off / off device for work machines | |
JPH0415809Y2 (en) | ||
JP2585453B2 (en) | Work lever operation lever mounting structure | |
JPH0510051Y2 (en) | ||
JPH0443123A (en) | Roof structure of working vehicle | |
JP2005248580A (en) | Positioning device for console box for construction machine | |
JPH0519240Y2 (en) | ||
JPH0545648Y2 (en) | ||
JPS6239150Y2 (en) | ||
JPH0430031A (en) | Structure of operation part of working vehicle | |
JPH0748854A (en) | Lock device for hydraulic control lever | |
JPH0716184Y2 (en) | Work vehicle operation lever mounting structure |