JPH0428053B2 - - Google Patents
Info
- Publication number
- JPH0428053B2 JPH0428053B2 JP60289815A JP28981585A JPH0428053B2 JP H0428053 B2 JPH0428053 B2 JP H0428053B2 JP 60289815 A JP60289815 A JP 60289815A JP 28981585 A JP28981585 A JP 28981585A JP H0428053 B2 JPH0428053 B2 JP H0428053B2
- Authority
- JP
- Japan
- Prior art keywords
- boom
- arm
- bucket
- control section
- backhoe
- 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
- 238000005452 bending Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
- E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
- E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
- E02F3/325—Backhoes of the miniature type
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
- E02F3/382—Connections to the frame; Supports for booms or arms
- E02F3/384—Connections to the frame; Supports for booms or arms the boom being pivotable relative to the frame about a vertical axis
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
- E02F3/963—Arrangements on backhoes for alternate use of different tools
- E02F3/964—Arrangements on backhoes for alternate use of different tools of several tools mounted on one machine
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
- E02F9/12—Slewing or traversing gears
- E02F9/121—Turntables, i.e. structure rotatable about 360°
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/16—Cabins, platforms, or the like, for drivers
- E02F9/163—Structures to protect drivers, e.g. cabins, doors for cabins; Falling object protection structure [FOPS]; Roll over protection structure [ROPS]
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、左右に走行装置を備えた走行機体
上に、前部に操縦部、後部に原動部を備えた旋回
機体を全旋回可能に設けるとともに、ブーム、ア
ーム及びバケツトを順次枢支連結してなるバツク
ホウ装置のブーム基端ブラケツトを、前記旋回機
体の前端部に設けた縦軸芯を中心に揺動自在に枢
支連結してある全旋回型バツクホウ作業車に関す
る。[Detailed Description of the Invention] [Industrial Application Field] This invention is a rotating aircraft that is equipped with a steering unit at the front and a driving unit at the rear, on a running aircraft that is equipped with running devices on the left and right sides, and is capable of making full turns. At the same time, a boom base end bracket of a backhoe device, which is formed by sequentially pivotally connecting a boom, an arm, and a bucket, is pivotally connected to be swingable about a vertical axis provided at the front end of the swing body. Concerning a fully rotating backhoe work vehicle.
上記バツクホウ作業車としては、例えば特開昭
60−37337号公報で開示されたものがある。
For example, the above-mentioned backhoe work vehicle is
There is one disclosed in Publication No. 60-37337.
このバツクホウ作業車は、ブーム基端ブラケツ
トを通常作業時の前向き姿勢から機体側に略直角
に揺動し、ブームを大きく起立するとともにアー
ムを大きく屈折し、かつ、バケツトを略水平に内
向き回動することによつてバツクホウ装置を機体
側に幅狭く折込むことができ、これによつて、旋
回機体部分の旋回半径を小さくすることができる
特徴を備えている。 This bucket hoe work vehicle swings the base end bracket of the boom at a nearly right angle toward the machine body from the forward facing position during normal work, raises the boom significantly, bends the arm greatly, and rotates the bucket inward approximately horizontally. By moving the backhoe device, the backhoe device can be narrowly folded into the fuselage side, thereby making it possible to reduce the turning radius of the rotating fuselage part.
しかし、上記従来構造においては、バツクホウ
装置を機体側に折込み揺動した状態において、バ
ケツトが旋回フレーム前部の操縦部における足元
前方箇所に位置するようになつているために、バ
ツクホウ装置の横揺動による機体側への接近の限
度があり、その結果、上記するように折込み揺動
したバツクホウ装置の最外端部における旋回半径
が未だ相当大きいものとなつていた。
However, in the above conventional structure, when the backhoe device is folded into the fuselage side and swung, the backhoe device is positioned in front of the feet of the control section at the front of the revolving frame. As a result, the turning radius at the outermost end of the backhoe device, which folded and swung as described above, was still quite large.
又、上記従来構造では、折込み揺動させたバツ
クホウ装置が旋回フレームから大きくはみ出さな
いようにするために、ブーム基端ブラケツトの縦
軸心が旋回フレームの横一側端近くに偏位して設
けられており、このためにバツクホウ装置を前方
に向けた通常の掘削作業姿勢にするとバツクホウ
装置が一方の走行装置の前方に位置することとな
り、車体の左右中央で掘削を行うときには旋回フ
レームを大きく旋回してバツクホウ装置を中央側
に寄せる必要があり、操縦部の向きとバツクホウ
装置の向きが大きく異なつてしまう不具合があつ
た。 In addition, in the above conventional structure, in order to prevent the folding and swinging backhoe device from protruding greatly from the revolving frame, the vertical axis of the boom base end bracket is offset near one lateral end of the revolving frame. Therefore, when the backhoe device is placed in the normal excavation work position with the backhoe device facing forward, the backhoe device will be located in front of one of the traveling devices, and when excavating in the center of the left and right of the vehicle body, the swing frame will have to be wide. It was necessary to turn and bring the backhoe device closer to the center, and there was a problem in which the direction of the control section and the direction of the backhoe device were significantly different.
本発明は、バツクホウ装置の構成及び配置に改
良を加えることで、バツクホウ装置を折込み揺動
したときの最小旋回半径を極めて小さくすること
ができるとともに、車体前方掘削作業も見通し良
好に行える全旋回型バツクホウ作業車を提供する
ことを目的とする。 The present invention improves the configuration and arrangement of the backhoe device, thereby making it possible to extremely reduce the minimum turning radius when the backhoe device is folded and swung. The purpose is to provide backhoe work vehicles.
本発明の特徴は、左右に走行装置を備えた走行
機体上に、前部に操縦部、後部に原動部を備えた
旋回機体を全旋回可能に設けるとともに、ブー
ム、アーム及びバケツトを順次枢支連結してなる
バツクホウ装置のブーム基端ブラケツトを、旋回
機体の前端部に設けた縦軸芯を中心に揺動自在に
枢支連結してある全旋回型バツクホウ作業車であ
つて、下記の(イ)〜(ホ)に記載の構成を備えて、後述
するバツクホウ装置の最大折込み起立状態におい
て、平面視でのバツクホウ装置の最大外端部位が
後述する旋回中心を中心として描く旋回軌跡以内
に、旋回機体が含まれるように構成してある。
A feature of the present invention is that a swinging body with a control section at the front and a driving section at the rear is provided on a traveling body equipped with traveling devices on the left and right sides so as to be able to make full turns, and the boom, arm, and bucket are sequentially pivoted. It is a full-swivel type backhoe work vehicle in which the boom base end bracket of the connected backhoe device is pivotally connected to be able to swing freely around a vertical axis provided at the front end of the revolving body, and the following ( Equipped with the configurations described in (a) to (e), when the backhoe device described below is in its maximum folded upright state, the maximum outer end portion of the backhoe device in plan view is within a turning trajectory drawn around the turning center described later, It is configured to include a rotating aircraft.
(イ) 操縦部を旋回機体の旋回中心よりも横一側が
わに配置するとともに、ブーム基端ブラケツト
の縦軸芯を、正面視にて操縦部の反対側の走行
装置と、旋回中心との間に位置するように構成
する。(a) Place the control section on one side laterally of the center of rotation of the swinging aircraft, and align the vertical axis of the boom base end bracket with the traveling gear on the opposite side of the control section and the center of rotation when viewed from the front. Configure it so that it is located in between.
(ロ) ブームをその長手方向の中央近くにおいて背
方に突出するように屈曲した形状に構成すると
ともに、アームの長さを、ブームの中間屈曲部
から上方部分の長さに近い長さに構成する。(b) The boom is configured to have a bent shape protruding backwards near the center of its longitudinal direction, and the length of the arm is configured to be close to the length of the upper portion of the boom from the intermediate bent portion. do.
(ハ) ブーム基端ブラケツトを操縦部側に略直角に
揺動させ、ブームを最大限起立させ、アームを
最大限屈折させ、さらにバケツトを略水平姿勢
まで内向き回動させた最大折込み起立状態にお
いて、ブームとアームとの枢支点が、旋回機体
の正面から見て旋回中心上、もしくはこれの近
傍に位置するように構成する。(c) Maximum folded upright state in which the boom base end bracket is swung approximately perpendicularly toward the control section, the boom is erected to the maximum extent, the arm is bent to the maximum extent, and the bucket is rotated inward to a nearly horizontal position. The pivot point between the boom and the arm is configured to be located on or near the center of rotation when viewed from the front of the rotating body.
(ニ) 最大折込み起立状態でブームの屈曲部より上
方部分とアームとが、ブームとアームとの枢支
点を頂点とした略二等辺三角形の両斜辺とな
り、かつ、バケツトの先端が、ブームの屈曲部
内側に近接するように構成する。(d) In the fully folded and upright state, the portion above the bending part of the boom and the arm form both hypotenuses of a substantially isosceles triangle with the pivot point between the boom and arm as the apex, and the tip of the bucket is located at the bend of the boom. Constructed so as to be close to the inner side.
(ホ) 最大折込み起立状態において、内向き回動さ
せたバケツトの下方に、操縦部の前部が入り込
むように構成する。(E) The front part of the control section is configured so that it fits below the bucket that is rotated inward in the maximum folded and upright state.
上記構成によると例えば第１，２，３図に示す
ように、ブーム基端ブラケツト１４を前向き姿勢
から略直角に横揺動してバツクホウ装置４を機体
側に近づけ、かつ、最大限折込み起立させた状態
では、屈曲ブーム１０とアーム１１との間の最も
広い空間部位にバケツト１２を折込み回動するた
めに、ブーム１０とアーム１１との屈折角を充分
小さくすることができる。つまり、バツクホウ装
置４の最大幅となるブーム屈曲部外端とバケツト
枢支部外端との間隔が充分小さいものとなる。か
つ、このように幅狭く折込んだバツクホウ装置４
のブーム、アーム枢支点Ｚが正面から見て旋回中
心Ｘ上又はこれの近くにあるために、バツクホウ
装置４の旋回中心Ｘに対する最外端部（具体的に
はバケツト１２の基部外端箇所）までの距離が短
いものとなる。
According to the above configuration, as shown in FIGS. 1, 2, and 3, for example, the boom base end bracket 14 is horizontally swung approximately at right angles from the forward facing position to bring the backhoe device 4 close to the aircraft body and fold it up as much as possible. In this state, the bending angle between the boom 10 and the arm 11 can be made sufficiently small in order to fold and rotate the bucket 12 into the widest space between the bending boom 10 and the arm 11. In other words, the distance between the outer end of the boom bending portion and the outer end of the bucket pivot portion, which is the maximum width of the backhoe device 4, is sufficiently small. And, the backhoe device 4 folded narrowly in this way
Since the pivot point Z of the boom and arm is located on or near the center of rotation X when viewed from the front, the outermost end of the backhoe device 4 with respect to the center of rotation X (specifically, the outer end of the base of the backhoe device 12) The distance to is shortened.
又、折込み回動されたバケツト１２が高い位置
にあり、操縦部６の前端部分がバケツト１２の下
方に入り込んでいるために、操縦部６を旋回機体
５の前部に充分寄せて設置することができ、これ
に伴つて操縦部６後方の原動部９の後端を旋回中
心Ｘに近づけることが可能となる。その結果とし
て、バツクホウ装置４の前記最外端部の旋回軌跡
Ｓ内に原動部９の後端を収めることが可能となつ
ている。 In addition, since the folded and rotated bucket belt 12 is located at a high position and the front end of the control section 6 is located below the bucket belt 12, the control section 6 must be installed sufficiently close to the front part of the swinging body 5. Accordingly, it becomes possible to bring the rear end of the driving unit 9 behind the control unit 6 closer to the turning center X. As a result, it is possible to accommodate the rear end of the driving portion 9 within the turning trajectory S of the outermost end of the backhoe device 4.
又、バツクホウ装置４のブーム基端ブラケツト
１４を支持した縦軸心Ｙが、正面から見て一方の
走行装置１と旋回中心Ｘとの間に設置してあるの
で、前方に向けたバツクホウ装置４の機体中心か
らの横方向への偏位が少なく、旋回機体５を旋回
することなく、もしくは少し旋回するだけでバケ
ツト１２を左右走行装置１，１の間に位置させる
ことができ、溝を股いでの掘削時に操縦部６の向
きとバツクホウ装置４の向きをあまり変えること
なく作業ができる。 In addition, since the vertical axis Y supporting the boom base end bracket 14 of the backhoe device 4 is installed between one of the traveling devices 1 and the turning center X when viewed from the front, the backhoe device 4 faces forward. The bucket 12 can be positioned between the left and right traveling devices 1, 1 without turning the rotating body 5, or by only slightly turning the rotating body 5. When excavating in the field, work can be done without changing the orientation of the control part 6 and the backhoe device 4 much.
以上説明したように、本発明によれば、バツク
ホウ装置を極めて幅狭に折り込み起立した状態
で、かつ操縦部空間を狭ばめるようなことなく機
体側に接近揺動することができ、その結果、旋回
機体部分の最小旋回半径を極めて小さくすること
が可能となつて、狭地での作業が一層容易に行え
るようになつた。
As explained above, according to the present invention, the backhoe device can be folded into an extremely narrow width and swung close to the aircraft side without narrowing the control section space. As a result, it has become possible to make the minimum turning radius of the rotating body part extremely small, making it easier to work in narrow areas.
又、バツクホウ装置自体の小幅折込みが可能と
なつたために、バツクホウ装置を機体側に接近揺
動させる縦軸心の機体左右中心からの偏位量を少
なくすることができ、その結果、機体前方での掘
削時に旋回フレームを大きく旋回することなくバ
ツクホウ装置の位置及び向きの設定ができ、操縦
部からバツクホウ装置を楽な姿勢で見通しながら
作業を行えるようになつた。 In addition, since the backhoe device itself can be folded into a narrow width, it is possible to reduce the amount of deviation of the vertical axis that swings the backhoe device toward the fuselage from the left-right center of the fuselage. When excavating, the position and orientation of the backhoe device can be set without making a large turn of the revolving frame, and the operator can now work while viewing the backhoe device from the control section in a comfortable position.
本発明に係るバツクホウ作業車は、左右一対の
クローラ型走行装置１，１及び排土装置２を備え
た走行機体３の上部に、バツクホウ装置４を備え
た旋回機体５が旋回中心Ｘ周りに全旋回自在に搭
載された基本構成となつている。
In the backhoe work vehicle according to the present invention, a swinging machine body 5 equipped with a backhoe device 4 is mounted on the top of a traveling machine body 3 equipped with a pair of left and right crawler-type traveling devices 1, 1 and an earth removal device 2, and a swinging machine body 5 equipped with a backhoe device 4 rotates around the center of rotation X. The basic configuration is that it is mounted so that it can rotate freely.
前記旋回機体５の前部の横一側部には操縦部６
が、横他側部には燃料タンク７及び作動油タンク
８が配備されるとともに、これらの後部にエンジ
ンを収めた原動部９が設けられている。 A control section 6 is provided on one side of the front part of the rotating body 5.
However, a fuel tank 7 and a hydraulic oil tank 8 are provided on the other side, and a driving section 9 containing an engine is provided at the rear of these tanks.
前記バツクホウ装置４は、周知の如く、ブーム
１０、アーム１１及びバケツト１２を順次枢支連
結し、夫々を油圧シリンダ１３で起伏及び屈伸駆
動するよう構成したものであり、ブーム１０の基
端を枢支したブーム基端ブラケツト１４が、旋回
機体５の前端ブラケツト１５に縦軸心Ｙを中心と
して揺動自在に枢支されるとともに、油圧シリン
ダ１６によつて駆動揺動されるよう構成されてい
る。そして、この縦軸心Ｙは旋回機体５の正面か
ら見て、旋回中心Ｘと一方の走行装置１との間に
位置して設置され、ブーム基端ブラケツト１５の
揺動によつて、バツクホウ装置４が前方に向かう
姿勢と、操縦部６から見て左方に略直角に揺動し
た姿勢とに変更可能となつている。 As is well known, the bucket hoist device 4 is constructed such that a boom 10, an arm 11, and a bucket bucket 12 are sequentially pivotally connected, and each is driven to raise, bend, and extend by a hydraulic cylinder 13. The supporting boom base end bracket 14 is pivotally supported on the front end bracket 15 of the swinging body 5 so as to be swingable about the vertical axis Y, and is configured to be driven and oscillated by a hydraulic cylinder 16. . This vertical axis Y is located between the swing center X and one of the traveling devices 1 when viewed from the front of the swing machine 5, and the swing of the boom base end bracket 15 allows the backhoe device to 4 can be changed between a posture facing forward and a posture swinging substantially at right angles to the left when viewed from the control section 6.
又、前記ブーム１０は、その全長の略中央にて
背方に突曲するよう屈曲され、アーム１１は、そ
の長さが、ブーム１０の屈曲部から上方部分の長
さと略同じ長さに設定されている。そして、バツ
クホウ装置４を横側方に略直角に揺動して機体側
に近づけた状態で、ブーム１０を最大限起立さ
せ、アーム１１を最大限屈折させ、更にバケツト
１２を略水平姿勢まで内向き回動させると、第１
図に示すように、ブーム１０とアーム１１の枢支
点Ｚが、旋回機体５の正面から見て、旋回中心Ｘ
上もしくはその近傍に位置するとともに、ブーム
１０の屈曲部より上方部分とアーム１１とが、ブ
ーム１０とアーム１１との枢支点Ｚを頂点として
略二等辺三角形の両斜辺となり、かつ、バケツト
１２の先端がブーム１０の屈曲部内側に充分接近
するよう構成されている。 Further, the boom 10 is bent so as to protrude backward at approximately the center of its entire length, and the length of the arm 11 is set to be approximately the same length as the length of the upper portion of the boom 10 from the bent portion. has been done. Then, with the baggage device 4 swung laterally at a substantially right angle and brought closer to the aircraft, the boom 10 is raised to the maximum extent, the arm 11 is bent to the maximum extent, and the bucket bag 12 is lowered to a substantially horizontal position. When rotated, the first
As shown in the figure, the pivot point Z of the boom 10 and the arm 11 is located at the center of rotation X when viewed from the front of the rotating body 5.
The upper part of the boom 10 and the arm 11 form both hypotenuses of a substantially isosceles triangle with the pivot point Z of the boom 10 and the arm 11 as the apex, and The tip is configured to be sufficiently close to the inside of the bending portion of the boom 10.
このようにバツクホウ装置４が最大限折込み起
立された状態では、前記バケツト１２の下方に操
縦部６の前端部が入り込むように構成されてい
る。そして、このときのバツクホウ装置４におけ
る最外端部となるバケツト１２の基部外端箇所Ａ
の平面視における旋回軌跡Ｓに沿うように、旋回
機体５の後端形状が設定されている。つまり、前
記旋回軌跡Ｓの半径Ｒが旋回機体５の最小旋回半
径となつている。 In this way, when the baghoe device 4 is folded to its maximum extent and erected, the front end of the control section 6 is inserted below the bucket bag 12. Then, the base outer end portion A of the bucket bag 12, which is the outermost part of the bucket bucket device 4 at this time.
The shape of the rear end of the rotating body 5 is set so as to follow a turning trajectory S in a plan view. In other words, the radius R of the turning trajectory S is the minimum turning radius of the turning aircraft 5.
又、前記操縦部６の中央には運転席１７が設け
られるとともに、その両側に前方に屈曲された作
業用レバー１８，１９が設けられ、又、足もと前
部に左右走行装置１，１を正逆転操作する走行用
レバー２０，２０が設けられている。そして、右
側の作業用レバー１８は、前後揺動によつてブー
ム１０を起伏させ、左右揺動によつてバケツト１
２を回動させ、又、左側の作業用レバー１９は、
前後揺動によつてアーム１１を屈伸させ、左右揺
動によつて旋回機体５を旋回させるよう、バツク
ホウ作動用の各油圧シリンダ１３の制御弁、旋回
用油圧モータの制御弁に夫々連係させている。 Further, a driver's seat 17 is provided in the center of the control section 6, and work levers 18 and 19 bent forward are provided on both sides of the driver's seat 17, and left and right traveling devices 1 and 1 are provided in front of the footwell. Traveling levers 20, 20 for reverse operation are provided. The right working lever 18 raises and lowers the boom 10 by swinging back and forth, and raises and lowers the bucket by swinging left and right.
2, and the left working lever 19 is
The control valves of each hydraulic cylinder 13 for backhoe operation and the control valve of the swing hydraulic motor are respectively linked so that the arm 11 is bent and extended by swinging back and forth, and the swinging machine 5 is turned by swinging left and right. There is.
尚、前記操縦部６の前端には金網を張つたガー
ドフレーム２１が足元前方を覆うように立設され
るとともに、運転席１７の上方を覆う日除け２２
が設けられている。又、必要に応じて、ガードフ
レーム２１の上端と日除け２２の前端とに亘つて
透明板２３が取付けられ、バケツト１２からこぼ
れた土砂の運転者へのふりかかりが防止されてい
る。 In addition, a guard frame 21 with a wire mesh is installed at the front end of the control section 6 so as to cover the front of the feet, and a sunshade 22 is installed to cover the upper part of the driver's seat 17.
is provided. Further, if necessary, a transparent plate 23 is attached across the upper end of the guard frame 21 and the front end of the sunshade 22 to prevent earth and sand spilled from the bucket 12 from splashing on the driver.
図面は本発明に係る全旋回型バツクホウ作業車
の実施例を示し、第１図はバツクホウ装置を最大
折込み起立した状態の正面図、第２図はその側面
図、第３図はその平面図、第４図はバツクホウ装
置を前方に向けた状態での平面図、第５図はその
側面図である。
１……走行装置、３……走行機体、４……バツ
クホウ装置、５……旋回機体、６……操縦部、９
……原動部、１０……ブーム、１１……アーム、
１２……バケツト、１４……ブーム基端ブラケツ
ト、Ｘ……旋回中心、Ｙ……縦軸心、Ｚ……枢支
点。
The drawings show an embodiment of a full-swivel type backhoe work vehicle according to the present invention; FIG. 1 is a front view of the backhoe device in its fully folded and erect state, FIG. 2 is a side view thereof, and FIG. 3 is a plan view thereof; FIG. 4 is a plan view of the backhoe device facing forward, and FIG. 5 is a side view thereof. 1... Traveling device, 3... Traveling body, 4... Backhoe device, 5... Turning body, 6... Control section, 9
...Moving unit, 10...Boom, 11...Arm,
12...bucket, 14...boom base end bracket, X...rotation center, Y...vertical axis center, Z...pivot point.
Claims (1)
に、前部に操縦部６、後部に原動部９を備えた旋
回機体５を全旋回可能に設けるとともに、ブーム
１０、アーム１１及びバケツト１２を順次枢支連
結してなるバツクホウ装置４のブーム基端ブラケ
ツト１４を、前記旋回機体５の前端部に設けた縦
軸芯Ｙを中心に揺動自在に枢支連結してある全旋
回型バツクホウ作業車であつて、下記の〔イ〕〜
〔ホ〕に記載の構成を備えて、後述するバツクホ
ウ装置４の最大折込み起立状態において、平面視
でのバツクホウ装置４の最大外端部位が後述する
旋回中心Ｘを中心として描く旋回軌跡Ｓ以内に、
前記旋回機体５が含まれるように構成してある全
旋回型バツクホウ作業車。 〔イ〕 前記操縦部６を前記旋回機体５の旋回中心
Ｘよりも横一側がわに配置するとともに、前記
ブーム基端ブラケツト１４の前記縦軸芯Ｙを、
正面視にて前記操縦部６の反対側の走行装置１
と、前記旋回中心Ｘとの間に位置するように構
成する。 〔ロ〕 前記ブーム１０をその長手方向の中央近く
において背方に突出するように屈曲した形状に
構成するとともに、前記アーム１１の長さを、
ブーム１０の中間屈曲部から上方部分の長さに
近い長さに構成する。 〔ハ〕 前記ブーム基端ブラケツト１４を操縦部６
側に略直角に揺動させ、前記ブーム１０を最大
限起立させ、前記アーム１１を最大限屈折さ
せ、さらに前記バケツト１２を略水平姿勢まで
内向き回動させた最大折込み起立状態におい
て、ブーム１０とアーム１１との枢支点Ｚが、
旋回機体５の正面から見て前記旋回中心Ｘ上、
もしくはこれの近傍に位置するように構成す
る。 〔ニ〕 前記最大折込み起立状態でブーム１０の屈
曲部より上方部分とアーム１１とが、ブーム１
０とアーム１１との前記枢支点Ｚを頂点とした
略二等辺三角形の両斜辺となり、かつ、前記バ
ケツト１２の先端が、ブーム１０の屈曲部内側
に近接するように構成する。 〔ホ〕 前記最大折込み起立状態において、内向き
回動させた前記バケツト１２の下方に、前記操
縦部６の前部が入り込むように構成する。[Scope of Claims] 1. On a traveling body 3 having traveling devices 1, 1 on the left and right sides, a swinging body 5 having a control section 6 at the front and a driving section 9 at the rear is provided so as to be able to make full turns, and a boom 10. A boom base end bracket 14 of a backhoe device 4, which is formed by sequentially pivotally connecting an arm 11 and a bucket 12, is pivotally connected to be swingable about a vertical axis Y provided at the front end of the swing body 5. It is a full-swivel type backhoe work vehicle, and the following [A] ~
Equipped with the configuration described in [E], when the backhoe device 4 is in the maximum folded upright state, which will be described later, the maximum outer end portion of the backhoe device 4 in plan view is within a turning trajectory S drawn around the turning center X, which will be described later. ,
A full swing type backhoe work vehicle configured to include the swing body 5. [B] The control unit 6 is disposed on one side laterally of the turning center X of the swinging body 5, and the vertical axis Y of the boom base end bracket 14 is
Traveling device 1 on the opposite side of the control section 6 when viewed from the front
and the turning center X. [B] The boom 10 is configured to have a bent shape protruding rearward near the center in the longitudinal direction, and the length of the arm 11 is
The length is close to the length of the upper portion of the boom 10 from the intermediate bent portion. [C] Connect the boom base end bracket 14 to the control section 6.
When the boom 10 is swung to the side at a substantially right angle, the boom 10 is erected to the maximum extent, the arm 11 is bent to the maximum extent, and the bucket 12 is rotated inwardly to a substantially horizontal position. The pivot point Z between and arm 11 is
On the turning center X when viewed from the front of the turning aircraft 5,
Or, configure it so that it is located near this. [D] In the maximum folded and upright state, the portion above the bent portion of the boom 10 and the arm 11 are aligned with the boom 1.
Both oblique sides of a substantially isosceles triangle having the apex at the pivot point Z of the boom 10 and the arm 11 are formed, and the tip of the bucket 12 is configured to be close to the inside of the bending part of the boom 10. [E] In the maximum folded and upright state, the front part of the control section 6 is configured to fit under the bucket 12 which has been rotated inward.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60289815A JPS62148725A (en) | 1985-12-23 | 1985-12-23 | Full-slewing type back hoe working vehicle |
| GB08619945A GB2184419B (en) | 1985-12-23 | 1986-08-15 | Complete swivel type excavator |
| NL8602126A NL8602126A (en) | 1985-12-23 | 1986-08-21 | ENTIRE SWIVELABLE EARTH MOVER. |
| FR868612187A FR2592076B1 (en) | 1985-12-23 | 1986-08-28 | MECHANICAL SHOVEL OF WHICH THE SWIVEL CAB CHASSIS CAN TURN A FULL |
| KR1019860007606A KR950008727B1 (en) | 1985-12-23 | 1986-09-10 | Complete swivel type backhoe vehicle |
| DE19863638423 DE3638423A1 (en) | 1985-12-23 | 1986-11-11 | ALL-ROUND SWIVEL LOW-BUCKET EXCAVATOR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60289815A JPS62148725A (en) | 1985-12-23 | 1985-12-23 | Full-slewing type back hoe working vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62148725A JPS62148725A (en) | 1987-07-02 |
| JPH0428053B2 true JPH0428053B2 (en) | 1992-05-13 |
Family
ID=17748127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60289815A Granted JPS62148725A (en) | 1985-12-23 | 1985-12-23 | Full-slewing type back hoe working vehicle |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS62148725A (en) |
| KR (1) | KR950008727B1 (en) |
| DE (1) | DE3638423A1 (en) |
| FR (1) | FR2592076B1 (en) |
| GB (1) | GB2184419B (en) |
| NL (1) | NL8602126A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH076217B2 (en) * | 1987-10-09 | 1995-01-30 | 日立建機株式会社 | Full swing work machine |
| US5244337A (en) * | 1990-02-05 | 1993-09-14 | Dr. Ing. H.C.F. Porsche Ag | Mobile shovel excavator |
| DE4003325C2 (en) * | 1990-02-05 | 1994-07-07 | Porsche Ag | Excavator |
| US5711095A (en) * | 1996-05-14 | 1998-01-27 | Kabushiki Kaisha Kobe Seiko Sho | Hydraulic working machine having a projecting portion |
| EP0807720B1 (en) * | 1996-05-14 | 2001-10-31 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Hydraulic working machine |
| US6009643A (en) * | 1996-05-14 | 2000-01-04 | Kabushiki Kaisha Kobe Seiko Sho | Hydraulic working machine |
| KR100383146B1 (en) * | 1997-09-22 | 2003-08-19 | 가부시끼 가이샤 구보다 | Working vehicle |
| DE19749246A1 (en) * | 1997-11-07 | 1999-05-27 | Krupp Foerdertechnik Gmbh | Bucket wheel excavator running on endless track |
| JP3638831B2 (en) * | 1999-10-07 | 2005-04-13 | コベルコ建機株式会社 | Excavator |
| CN109339130B (en) * | 2018-11-02 | 2023-11-10 | 徐州徐工矿业机械有限公司 | Backhoe type excavator movable arm |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5837236A (en) * | 1981-08-27 | 1983-03-04 | ハンド−ザ−工業株式会社 | Excavator |
| JPS6037337A (en) * | 1983-07-14 | 1985-02-26 | カルル・シエツフ・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング・ウント・コンパニー・マシイネンフアブリーク | Drag shovel |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2558799C3 (en) * | 1975-12-24 | 1981-11-05 | Karl Schaeff GmbH & Co, Maschinenfabrik, 7183 Langenburg | Mobile hydraulic backhoe |
| JPS5847109Y2 (en) * | 1977-10-31 | 1983-10-27 | 株式会社クボタ | Circuit structure of backhoe and dozer work vehicle |
| GB2015963A (en) * | 1978-02-07 | 1979-09-19 | Hymac Ltd | Hydraulic excavator |
| FR2450913A1 (en) * | 1979-03-08 | 1980-10-03 | Takeuchi Manufacturing Cy Ltd | Rotating, back-acting mechanical bucket digger - has horizontally rotatable bucket digger and scraper blade |
-
1985
- 1985-12-23 JP JP60289815A patent/JPS62148725A/en active Granted
-
1986
- 1986-08-15 GB GB08619945A patent/GB2184419B/en not_active Expired
- 1986-08-21 NL NL8602126A patent/NL8602126A/en not_active Application Discontinuation
- 1986-08-28 FR FR868612187A patent/FR2592076B1/en not_active Expired - Fee Related
- 1986-09-10 KR KR1019860007606A patent/KR950008727B1/en not_active IP Right Cessation
- 1986-11-11 DE DE19863638423 patent/DE3638423A1/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5837236A (en) * | 1981-08-27 | 1983-03-04 | ハンド−ザ−工業株式会社 | Excavator |
| JPS6037337A (en) * | 1983-07-14 | 1985-02-26 | カルル・シエツフ・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング・ウント・コンパニー・マシイネンフアブリーク | Drag shovel |
Also Published As
| Publication number | Publication date |
|---|---|
| KR870006286A (en) | 1987-07-10 |
| GB2184419A (en) | 1987-06-24 |
| GB2184419B (en) | 1988-12-07 |
| KR950008727B1 (en) | 1995-08-04 |
| FR2592076B1 (en) | 1992-04-03 |
| DE3638423A1 (en) | 1987-07-02 |
| JPS62148725A (en) | 1987-07-02 |
| FR2592076A1 (en) | 1987-06-26 |
| NL8602126A (en) | 1987-07-16 |
| GB8619945D0 (en) | 1986-09-24 |
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