JP2538203B2 - Backhoe work unit mounting structure - Google Patents
Backhoe work unit mounting structureInfo
- Publication number
- JP2538203B2 JP2538203B2 JP61010782A JP1078286A JP2538203B2 JP 2538203 B2 JP2538203 B2 JP 2538203B2 JP 61010782 A JP61010782 A JP 61010782A JP 1078286 A JP1078286 A JP 1078286A JP 2538203 B2 JP2538203 B2 JP 2538203B2
- Authority
- JP
- Japan
- Prior art keywords
- boom
- working
- driver
- center line
- machine body
- 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
Links
- 238000009412 basement excavation Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 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
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明は、バックホーの作業部取付構造に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a backhoe working unit mounting structure.
（ロ）従来の技術 従来のバックホー、なかでも、小型のバックホーは、
旋回機体側のブーム取付台と作業部取付用のブーム支持
体とを左右回動自在に結合する枢支部を、機体中心線上
に配置するとともに、旋回機体上に装設する運転席も機
体中心線上に配設して機体のバランスを保つように構成
されるのが一般的であるが、このような構成のものにお
いては、走行部に対して旋回機体を回動させ、その状態
の旋回機体に対して作業部取付用のブーム支持体を左又
は右に回動させて作業部を走行部の側方に位置させて側
溝掘りを行う場合に、ブーム支持体とブーム取付台との
枢支部が機体中心線上に配設されているために、ブーム
支持体の左右回動可能角が旋回機体との干渉によって狭
められて、作業部を走行部の進行方向に適正に合致させ
ることができなくて側溝掘り作業を連続的に能率よく行
うことができないという難点がある。(B) Conventional technology Conventional backhoes, especially small backhoes,
The pivot support that connects the boom mount on the swing machine side and the boom support for working unit attachment to the left and right is arranged on the machine centerline, and the driver's seat mounted on the swing machine also is on the machine centerline. It is generally configured to be placed on the vehicle to maintain the balance of the machine body. However, in such a structure, the swing machine body is rotated with respect to the traveling part, and On the other hand, when the boom support for mounting the working section is rotated to the left or right to position the working section on the side of the traveling section for digging a gutter, the pivotal support section between the boom support and the boom mount is Since the boom support is located on the centerline of the machine body, the pivotable angle of the boom support is narrowed due to interference with the swing machine body, and the working unit cannot be properly aligned with the traveling direction of the traveling unit. It is not possible to perform gutter digging continuously and efficiently There is a drawback to say.
そこで、従来技術のなかには、旋回機体側のブーム取
付台と、それに左右回動自在に取付けられる作業部取付
用のブーム支持体とを、機体の中心線に対して横一側方
に大きく偏寄した部位に配設することによって、側溝掘
り作業を連続的に行うに好都合な状態に作業部を位置さ
せることができるようにしたものがみられる（例えば、
特開昭55−159027号公報参照）。Therefore, in the prior art, a boom mount on the side of the turning machine and a boom support for mounting the working unit, which is rotatably attached to the boom support, are largely biased laterally to one side with respect to the centerline of the machine. By arranging the parts in such a position, it is possible to locate the working part in a state convenient for continuously performing the gutter digging work (for example,
(See Japanese Patent Laid-Open No. 55-159027).
（ハ）発明が解決しようとする課題 上記刊行物にみられる従来のものは、作業部の方向を
走行部の進行方向に合致させて側溝掘り作業を行うこと
ができるけれども、ブーム取付台及びブーム支持体が機
体中心線から横方に大きく片寄って設けられ、側溝掘り
作業体勢においては、それ等と作業部の全体が更に機体
の横片側に偏寄して位置することになって機体のバラン
スが大きく崩れ勝ちになり、殊に、小型のバックホーに
あっては機体バランスが相当に悪くなる難点があった。(C) Problems to be Solved by the Invention Although the conventional ones found in the above publications can perform the gutter work by matching the direction of the working part with the traveling direction of the traveling part, the boom mount and the boom The support is provided laterally offset from the center line of the machine body, and in the gutter digging work posture, these and the entire working unit are located closer to one lateral side of the machine body and the balance of the machine body Had a problem that the aircraft's balance was considerably poor, especially for small backhoes.
また、作業部を取付けるブーム支持体とそれを支持す
るブーム支持台が機体の横一側に大きく片寄って設けら
れながら、それと運転席との左右方向における関連配置
には何らの配慮もされていなかったから、運転席との関
連において益々機体バランスが損なわれるとか、作業状
況の視認性が悪くなって運転操作に苦慮することになる
といった難点があった。In addition, the boom support to which the working unit is attached and the boom support that supports the boom are provided on one side of the machine body with a large offset, but no consideration is given to the relative arrangement of the boom support and the driver's seat in the left-right direction. Therefore, there is a problem that the balance of the machine body is further impaired in relation to the driver's seat, and the visibility of the work status deteriorates, resulting in a difficulty in driving.
（ニ）課題を解決するための手段 本発明は、従来のものにおける上記の難点に鑑みてな
されたものであり、その目的とするところは、作業部を
走行部の進行方向に適正に合致する体勢にして側溝掘り
作業を連続的に能率よく行うことができるものにすると
ともに、側溝掘り作業時にも機体バランスを良好に保
ち、且つ、運転席からの作業状況の視認性も良好になる
ようにした、特に、小型のバックホーに実施するに好適
な作業部取付構造を提供することにある。(D) Means for Solving the Problems The present invention has been made in view of the above-mentioned problems in the conventional one, and an object thereof is to properly match the working unit with the traveling direction of the traveling unit. In addition to making it possible to perform ditch digging work continuously and efficiently while keeping it in a position, maintain good aircraft balance even during ditch digging work, and also make the visibility of the work situation from the driver's seat good Another object of the present invention is to provide a working portion mounting structure suitable for implementation on a small backhoe.
そして、目的を達成するために、本発明におけるバッ
クホーの作業部取付構造は、走行部（２）上で旋回自在
とした機体フレーム（３）の前端に装設するブーム取付
台（７）に作業部取付用のブーム支持体（８）を左右回
動自在に取付ける枢支部（９）を、機体中心線（ａ）上
に設けてあるバックホーにおいて、前記機体フレーム
（３）上に装設する運転席（14）を平面視で機体中心線
（ａ）に対し横側方に偏寄させて配設するとともに、ブ
ーム支持体（８）に取付ける作業部（６）の中心線
（ｂ）を前記機体中心線（ａ）に対して運転席（14）の
反対側に偏位させてあることを特徴とするものである。In order to achieve the object, the working portion mounting structure of the backhoe according to the present invention is mounted on the boom mounting base (7) mounted on the front end of the machine body frame (3) which is rotatable on the traveling portion (2). Operation in which a pivot support (9) for rotatably rotating the boom support (8) for mounting parts is mounted on the machine frame (3) in a backhoe provided on the machine centerline (a). The seat (14) is arranged laterally offset from the machine body centerline (a) in a plan view, and the centerline (b) of the working unit (6) attached to the boom support (8) is arranged as described above. It is characterized in that it is deviated to the side opposite to the driver's seat (14) with respect to the machine body center line (a).
（ホ）発明の作用及び効果 本発明の作業部取付構造を有するバックホーにおいて
は、通常の場合、機体中心線（ａ）上の枢支部（９）に
取付けたブーム支持体（８）から機体フレーム（３）の
前面部に作業部が延出位置するから、機体バランスが大
きく損なわれるようなことがない、そして、その作業部
の作業状況を、運転者は機体中心線（ａ）から機体の横
一側部に偏寄して位置した運転席（14）に在って視認で
きる為、運転者は、身体を横方向に折り曲げた不自然な
姿勢を採るようなことなく自然な座姿勢で楽に運転操作
することができる。(E) Action and Effect of the Invention In the backhoe having the working unit mounting structure of the present invention, in the normal case, the boom support (8) mounted on the pivotal support (9) on the machine centerline (a) to the machine frame Since the working section extends to the front of (3), the machine body balance is not greatly impaired, and the work condition of the working section is checked by the driver from the machine body center line (a). Since it is visible in the driver's seat (14), which is located close to one side, the driver can take a natural sitting posture without having to take an unnatural posture in which the body is bent laterally. You can drive easily.
また、側溝掘り作業の場合には、走行部に対して旋回
機体を横向き位置に回動させ、その状態の旋回機体に対
して作業部取付用のブーム支持体を座席設置側に回動さ
せて作業部を走行部の側方に位置させて作業するのであ
るが、その場合に、ブーム支持体（８）に取付ける作業
部（６）の中心線（ｂ）を、機体中心線（ａ）に対して
運転席（14）の反対側に偏位させてあるので、ブーム支
持体（８）が機体フレーム（３）に干渉するまでの回動
角が大になって作業部（６）を走行部の進行方向に適正
に合わせることができて、側溝掘り作業を走行部の稼働
により連続的に能率よく行うことができ、また、側溝掘
り作業体勢においては、作業部と運転席とが近づく状態
になるので、運転者は通常の場合と同様に無理な体勢を
採ることなく自然な座姿勢で楽に側溝掘り作業できる。In addition, in the case of gutter digging work, turn the turning machine to the sideways position with respect to the traveling section, and rotate the boom support for working section attachment to the seat installation side with respect to the turning machine in that state. The work section is located on the side of the traveling section for work. In that case, the center line (b) of the work section (6) attached to the boom support (8) is changed to the machine body center line (a). On the other hand, since it is deviated to the side opposite to the driver's seat (14), the rotation angle until the boom support (8) interferes with the machine frame (3) becomes large and the work section (6) travels. It can be properly adjusted to the traveling direction of the section, and the ditch digging work can be performed continuously and efficiently by operating the running section. Moreover, in the gutter digging work posture, the working section and the driver's seat are close to each other. As usual, the driver does not have to take an unnatural posture, and Comfortably you can work ditch digging in attitude.
（ヘ）実施例 本発明の実施例を図面にもとづき詳述すれば、第１図
の平面図に示すようにバックホー（Ａ）は、両側にクロ
ーラ式走行部（２）を配設し、その走行部（２）の上方
に機体フレーム（３）を旋回自在に載装している。(F) Embodiments An embodiment of the present invention will be described in detail with reference to the drawings. As shown in the plan view of FIG. 1, the backhoe (A) is provided with crawler type traveling parts (2) on both sides thereof, and A body frame (3) is mounted above the traveling portion (2) so as to be freely rotatable.
そして、機体フレーム（３）上には、前方から運転部
（４）及び原動機等を内蔵したボンネット（５）を配設
している。Further, a bonnet (5) having a driving part (4), a prime mover and the like built therein is arranged from the front on the machine body frame (3).
運転部（４）には運転席（14）を設けており、運転席
（14）の中心は、機体フレーム（３）の前後方向への機
体中心線（ａ）に対し、やや側方に偏位するように位置
させている。The driver's seat (14) is provided in the driver's part (4), and the center of the driver's seat (14) is slightly laterally offset from the machine body centerline (a) in the longitudinal direction of the machine body frame (3). It is positioned to rank.
また、運転部（４）の前方には作業部（６）を配設し
ており、前記原動機の動力により油圧ポンプを作動させ
て油圧駆動により走行部（２）を駆動して走行可能とす
ると共に、作業部（６）を駆動して掘削作業を行えるよ
うにしている。A working unit (6) is arranged in front of the operating unit (4), and a hydraulic pump is operated by the power of the prime mover to hydraulically drive the traveling unit (2) to enable traveling. At the same time, the working unit (6) is driven so that excavation work can be performed.
また、バックホー（Ａ）における作業部（６）の取付
構造を詳述すれば、次のとおりである。The mounting structure of the working unit (6) on the backhoe (A) will be described in detail below.
すなわち、機体フレーム（３）の前端には、平面視略
三角形状のブーム取付台（７）を装設し、その取付台
（７）の先端に左右回動自在にブーム支持体（８）を枢
支し、ブーム支持体（８）に作業部（６）を上下回動自
在に取付けるものである。That is, at the front end of the machine body frame (3), a boom mounting base (7) having a substantially triangular shape in plan view is installed, and a boom support (8) is rotatably rotatable at the tip of the mounting base (7). The work unit (6) is pivotally supported and is attached to the boom support (8) so as to be vertically rotatable.
なお、作業部（６）は、ブーム支持体（８）の連結部
（８−１）に枢支ピン（10）を介して連結されたブーム
（12）の先端部に副ブーム及びパケットを連結して上記
の油圧駆動により作動させて掘削作業を行うものであ
る。The working unit (6) connects the sub boom and the packet to the tip of the boom (12) that is connected to the connecting unit (8-1) of the boom support (8) via the pivot pin (10). Then, the excavation work is performed by operating the above hydraulic drive.
また、（11）は、機体フレーム（３）前端に設けた油
圧シリンダであり、ブーム支持体（８）の側面に連結
し、油圧シリンダ（11）の伸縮作動によって作業部
（６）を左右回動自在にするものである。Further, (11) is a hydraulic cylinder provided at the front end of the machine frame (3), which is connected to the side surface of the boom support (8) and rotates the working unit (6) left and right by the expansion and contraction operation of the hydraulic cylinder (11). It is free to move.
しかして、ブーム取付台（７）とブーム支持体（８）
との枢支部（９）を、機体フレーム（３）の機体中心線
（ａ）上に配設すると共に、作業部（６）の中心線
（ｂ）を機体中心線（ａ）、すなわち枢支部（９）と偏
位して配設されるべく構成しているものである。Then, the boom mount (7) and the boom support (8)
And a pivotal support portion (9) of the working unit (6) are arranged on the fuselage centerline (a) of the fuselage frame (3), and the centerline (b) of the working portion (6) is the fuselage centerline (a), that is, the pivotal support portion. It is constructed so as to be offset from (9).
つまり、ブーム支持体（８）は前部にブーム（12）と
連結するためのコ字状フレーム（８−１）を有し、後部
にブーム取付台（７）と連結するための枢支部（９）を
設けている。That is, the boom support body (8) has a U-shaped frame (8-1) for connecting to the boom (12) at the front part, and a pivotal support (for connecting to the boom mount (7) at the rear part ( 9) is provided.
そして、作業部（６）の中心線（ｂ）、具体的にはブ
ーム（12）の中心線（ｂ）が機体中心線（ａ）上に設け
た枢支部（９）より運転席（14）の反対側に偏位するよ
うにブーム（12）の取付位置を枢支部（９）より偏位さ
せている。従って、作業部（６）の中心線（ｂ）と機体
中心線（ａ）とは左右偏位し、その分だけ機体中心の前
方分は開放状に構成されている。Then, the center line (b) of the working section (6), specifically the center line (b) of the boom (12) is located on the airframe center line (a) from the pivot portion (9) provided on the driver's seat (14). The mounting position of the boom (12) is deviated from the pivot portion (9) so as to deviate to the opposite side. Therefore, the center line (b) of the working section (6) and the machine body center line (a) are laterally offset, and the front part of the machine body is open by that amount.
また、機体フレーム（３）上の運転部（４）には、操
作レバー（13）及びその後方に運転席（14）を配設して
おり、操作レバー（13）及び運転席（14）を、前方の作
業部（６）の偏位位置に対応して反対側に偏位させるこ
とにより、前方の視界を更に良好とするものである。Further, an operating lever (13) and a driver's seat (14) behind the operating lever (13) are arranged in the operating part (4) on the body frame (3), and the operating lever (13) and the driver's seat (14) are installed. The front field of view is further improved by displacing to the opposite side in correspondence with the eccentric position of the front working unit (6).
しかも、ブーム取付台（７）とブーム支持体（８）と
の枢支部（９）を、機体中心線（ａ）上に設けているの
で、左右どちらに作業部（６）を回動移動しても同一条
件で作業が行える。Moreover, since the pivot support portion (9) between the boom mount (7) and the boom support body (8) is provided on the machine body center line (a), the working portion (6) can be pivotally moved to the left or right. However, work can be performed under the same conditions.
また、機体中心線（ａ）に対して、ブーム支持体
（８）に上下回動自在に取付けた作業部（６）の中心線
（ｂ）を運転席（14）の反対側に偏位させたので、運転
席（14）側へ作業部（６）を回動して作業する場合に
は、ブーム支持体（８）が機体フレーム（３）の前縁に
干渉するまでの回動角が大きくなり、ブーム支持体
（８）と機体フレーム（３）前縁との間に余裕を持ちな
がら、作業部（６）を走行部の進行方向に合わせること
ができて、両者間に異物を噛み込み圧縮するようなこと
なく、側溝掘り体勢に作業部（６）を位置させることが
できる。Further, with respect to the machine center line (a), the center line (b) of the working portion (6) rotatably attached to the boom support (8) is displaced to the opposite side of the driver seat (14). Therefore, when the working portion (6) is rotated toward the driver's seat (14) for work, the rotation angle until the boom support (8) interferes with the front edge of the body frame (3) is increased. The work part (6) can be aligned with the traveling direction of the traveling part while allowing a space between the boom support (8) and the front edge of the body frame (3), and foreign matter is caught between them. It is possible to position the working part (6) in the ditch digging posture without being subjected to compression.
なお、（ａ′）は機体中心線を示す仮想線である。ま
た、（15）は、従来技術として機体中心線（ａ）上に作
業部（６）の中心線（ｂ）を配設した場合における旋回
時の作業部位置を二点鎖線で示したものである。Incidentally, (a ') is an imaginary line indicating the center line of the machine body. Further, (15) shows the position of the working part during turning in the case where the center line (b) of the working part (6) is arranged on the center line (a) of the machine body as a conventional technique by a chain double-dashed line. is there.
第１図は、本発明のバックホーの作業部取付構造の平面
図、第２図は本発明構造の作動説明図である。 ２……作業部、３……機体フレーム、６……作業部 ７……ブーム取付台、８……ブーム支持体、９……枢支
部 14……運転席、ａ……機体中心線、ｂ……作業部中心線FIG. 1 is a plan view of a backhoe working unit mounting structure of the present invention, and FIG. 2 is an operation explanatory view of the present invention structure. 2 ... Working part, 3 ... Airframe, 6 ... Working part 7 ... Boom mount, 8 ... Boom support, 9 ... Pivot support 14 ... Driver's seat, a ... Aircraft center line, b ...... Working center line
Claims (1)
ーム（３）の前端に装設するブーム取付台（７）に作業
部取付用のブーム支持体（８）を左右回動自在に取付け
る枢支部（９）を、機体中心線（ａ）上に設けてあるバ
ックホーにおいて、前記機体フレーム（３）上に装設す
る運転席（14）を平面視で機体中心線（ａ）に対し横側
方に偏寄させて配設するとともに、ブーム支持体（８）
に取付ける作業部（６）の中心線（ｂ）を前記機体中心
線（ａ）に対して運転席（14）の反対側に偏位させてあ
ることを特徴とするバックホーの作業部取付構造。1. A boom support (8) for mounting a working part is freely rotatable on a boom mount (7) mounted on the front end of a body frame (3) which is rotatable on a traveling part (2). In the backhoe in which the pivot part (9) to be attached to the airframe is provided on the airframe centerline (a), the driver's seat (14) mounted on the airframe frame (3) is seen on the airframe centerline (a) in plan view. On the other hand, the boom support (8) is arranged so as to be laterally offset.
A working portion mounting structure for a backhoe, wherein a center line (b) of a working portion (6) mounted on the back hoe is offset to a side opposite to a driver seat (14) with respect to the machine body center line (a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61010782A JP2538203B2 (en) | 1986-01-20 | 1986-01-20 | Backhoe work unit mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61010782A JP2538203B2 (en) | 1986-01-20 | 1986-01-20 | Backhoe work unit mounting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62170616A JPS62170616A (en) | 1987-07-27 |
| JP2538203B2 true JP2538203B2 (en) | 1996-09-25 |
Family
ID=11759906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61010782A Expired - Fee Related JP2538203B2 (en) | 1986-01-20 | 1986-01-20 | Backhoe work unit mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2538203B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55159027A (en) * | 1979-05-25 | 1980-12-10 | Kubota Ltd | Excavator |
| JPS621932A (en) * | 1985-06-26 | 1987-01-07 | Kubota Ltd | Arm-fitting structure for back hoe |
-
1986
- 1986-01-20 JP JP61010782A patent/JP2538203B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62170616A (en) | 1987-07-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |