JPH0512362Y2 - - Google Patents
Info
- Publication number
- JPH0512362Y2 JPH0512362Y2 JP1986126442U JP12644286U JPH0512362Y2 JP H0512362 Y2 JPH0512362 Y2 JP H0512362Y2 JP 1986126442 U JP1986126442 U JP 1986126442U JP 12644286 U JP12644286 U JP 12644286U JP H0512362 Y2 JPH0512362 Y2 JP H0512362Y2
- Authority
- JP
- Japan
- Prior art keywords
- traveling device
- backhoe
- boom
- swivel base
- plan
- 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
Landscapes
- Shovels (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、走行装置に縦軸芯周りで回動操作自
在に取付けた旋回台の前端側で左右中央寄りに、
バツクホウ装置を取付けたスイングブラケツトを
縦軸芯周りで揺動自在に設け、前記バツクホウ装
置のブームを平面視で前記旋回台の前方に張出し
た第１姿勢と、前記旋回台の前端縁に沿う状態で
横側方に張出した第２姿勢とに切換えるために、
前記スイングブラケツトを揺動操作する駆動装置
を設けたバツクホウに関する。[Detailed description of the invention] [Industrial field of application] The invention is based on a rotating platform that is attached to a traveling device so as to be rotatable around a vertical axis, and that is located near the left and right center on the front end side.
A swing bracket to which a backhoe device is attached is provided to be swingable around a vertical axis, and a first position in which the boom of the backhoe device extends in front of the swivel base in plan view, and a state in which it is aligned along the front edge of the swivel base. In order to switch to the second posture that extends laterally,
The present invention relates to a backhoe provided with a drive device for swinging the swing bracket.
従来、第３図に示すように、ブーム６ａが左右
に腰折れしないタイプでは、旋回台２の前端を走
行装置１の横側方に余り大きく張出さないように
形成して、旋回半径をできるだけ小さくしてある
ために、旋回台２を走行装置１の横側方に向ける
と共に、ブーム６ａを平面視で走行装置１の直進
方向に沿う第２姿勢にしても、バケツト６ｃが平
面視で走行装置１の直進軌跡相当箇所９と重なり
合う状態となるため、溝の改修や溝の２回掘り等
が走行装置１の際近くまで行えないものである。
そこで、上記タイプのものにかえて、溝の改修や
溝の２回掘り等が走行装置１の際近くまで行える
よう改良された従来タイプものとしては、第４図
に示すようにブーム６ａを左右に腰折れできるよ
うに形成し、平面視において、ブーム基端側６a-
１の旋回台２に対する角度α設定で、ブーム先端
側６a-2とアーム６ｂを走行装置１の直進方向に
沿わせながら、バケツト６ｃを走行装置１の直進
軌跡相当箇所９よりも外側に位置させられるよう
に構成していた。
Conventionally, as shown in FIG. 3, in a type in which the boom 6a does not bend to the left or right, the front end of the swivel base 2 is formed so as not to extend too much laterally to the traveling device 1, thereby making the slewing radius as small as possible. Therefore, even if the swivel base 2 is directed laterally to the traveling device 1 and the boom 6a is placed in the second position along the straight traveling direction of the traveling device 1 in a plan view, the bucket 6c is not aligned with the traveling device in a plan view. Since this overlaps with the location 9 corresponding to the straight-travel trajectory of No. 1, it is impossible to repair the trench or dig the trench twice, etc., until the traveling device 1 is close to the edge.
Therefore, instead of the above-mentioned type, there is a conventional type that has been improved so that trench repair and trench digging can be carried out close to the edge of the traveling device 1, as shown in FIG. The boom base end side 6a-
1 with respect to the swivel base 2, position the bucket 6c outside the point 9 corresponding to the straight path of the traveling device 1 while aligning the boom tip side 6 a-2 and the arm 6b in the straight direction of the traveling device 1. It was configured so that it could be done.
しかし、ブーム６ａを左右に腰折れできるよう
に形成すると、ブーム６ａが複雑で高価になると
共に、ブーム６ａを腰折れ操作するための油圧シ
リンダC5、操作バルブ等にも多くの経費と組付
手数を必要とし、全体として製作面及びコスト面
で不利になる欠点があつた。
However, if the boom 6a is formed so that it can be bent left and right, the boom 6a becomes complicated and expensive, and the hydraulic cylinder C5 , operation valve, etc. for bending the boom 6a also requires a lot of expense and labor. However, there were disadvantages in terms of manufacturing and cost as a whole.
本考案の目的は、溝の改修や溝の２回掘り等が
可能でありながら、製作面及びコスト面で有利な
バツクホウを提供する点にある。 An object of the present invention is to provide a backhoe that is advantageous in terms of manufacturing and cost while allowing trench repair and trench digging twice.
本考案の特徴構成は、前記旋回台をその前端縁
が前記走行装置における前後の直進方向に沿う姿
勢にした状態で、かつ、バツクホウ装置のブーム
を平面視で前記走行装置の直進方向に沿う姿勢に
した状態で、前記バツクホウ装置のバケツトを平
面視で前記走行装置の直進軌跡相当箇所よりも外
側に位置させるために、前記旋回台の回動軸芯
と、前記バツクホウ装置を取付けたスイングブラ
ケツトの揺動軸芯との間隔I1、前記走行装置の横
巾I2、前記バケツトの横巾I3の相関が、
I1＞１／２（I2＋I3）＋Ｋ （Ｋは定数）
になつていることにあり、その作用効果は次の通
りである。
The characteristic configuration of the present invention is such that the swivel base is placed in a position where its front edge is aligned in the forward and backward straight direction of the traveling device, and the boom of the backhoe device is positioned in a plan view along the straight direction of the traveling device. In this state, in order to position the bucket of the backhoe device on the outside of a portion corresponding to the straight trajectory of the traveling device in plan view, the pivot axis of the swivel base and the swing bracket to which the backhoe device is attached are aligned. The correlation between the distance I 1 from the swing axis, the width I 2 of the traveling device, and the width I 3 of the bucket is I 1 > 1/2 (I 2 + I 3 ) + K (K is a constant). Its functions and effects are as follows.
つまり、上述のように寸法設定すると共に定数
Ｋを適当に設定すれば、望ましくは定数Ｋを５〜
15cmに設定すると、第１図に示すように、ブーム
を左右に腰折れ不能で簡単なものにしながら、ブ
ームを溝掘りに好適なように走行装置の直進方向
に沿わせた状態で、バケツトを走行装置の直進軌
跡相当箇所よりも外側に位置させることができる
と共に、旋回台の旋回半径を極力小さくすること
が可能である。
In other words, if the dimensions are set as described above and the constant K is set appropriately, it is desirable to set the constant K to 5 to 5.
When set to 15 cm, as shown in Figure 1, the bucket can be moved with the boom not being able to bend to the left or right, and with the boom aligned in the straight direction of the traveling device, which is suitable for digging trenches. It is possible to position it outside the position corresponding to the straight path of the device, and it is also possible to make the turning radius of the turning table as small as possible.
従つて、旋回半径が小さいバツクホウでもつ
て、走行装置を溝に沿つて移動させながらバケツ
トによる溝内の掘削が可能となり、狭い場所での
溝の改修や溝の２回掘り等において走行装置の直
進方向での掘削範囲を大きくとることができるこ
とで掘削回数を低減できる等作業能率の向上を図
ることができ、ブーム構造を掘折構造にすること
なく構造の簡略化も図れて製作面及びコスト面で
有利にできる。
Therefore, even with a bucket hoe with a small turning radius, it is possible to excavate a trench with a bucket while moving the traveling device along the groove, and the traveling device can move straight when repairing a trench in a narrow place or digging a trench twice. By being able to widen the digging range in the direction, it is possible to improve work efficiency by reducing the number of times of digging, and the structure can be simplified without changing the boom structure to a folding structure, which improves production and cost. You can do it to your advantage.
次に実施例を示す。 Next, examples will be shown.
第１図に示すように、クローラ式走行装置１に
旋回台２を縦軸芯P1周りで回動操作自在にかつ
ドーザ３を上下揺動操作自在に取付け、旋回台２
に搭乗運転部４と原動部５を設け、旋回台２の前
端側で左右中央寄りに、バツクホウ装置６を取付
けたスウイングブラケツト７を縦軸芯P2周りで
揺動自在に設けてある。 As shown in FIG. 1, a swivel base 2 is attached to a crawler type traveling device 1 so that it can be freely rotated around a vertical axis P1 , and a dozer 3 is attached to a crawler type traveling device 1 so that it can be freely swung up and down.
A boarding and driving section 4 and a driving section 5 are provided, and a swing bracket 7 to which a backhoe device 6 is attached is provided on the front end side of the swivel base 2 toward the left and right center so as to be swingable around the vertical axis P2 .
バツクホウ装置６は、油圧シリンダC1で上下
揺動操作自在にスイングブラケツト７に取付けた
ブーム６ａ、油圧シリンダC2で揺動操作自在に
ブーム６ａに取付けたアーム６ｂ、油圧シリンダ
C3で揺動操作自在にアーム６ｂに取付けたバケ
ツト６ｃから成り、ブーム６ａ、アーム６ｂ、バ
ケツト６ｃの揺動軸芯は互いにほぼ平行である。 The backhoe device 6 includes a boom 6a attached to a swing bracket 7 so as to be able to swing up and down using a hydraulic cylinder C1 , an arm 6b attached to the boom 6a so as to be able to swing up and down using a hydraulic cylinder C2 , and a hydraulic cylinder C2.
It consists of a bucket 6c attached to an arm 6b so as to be swingable at C3 , and the swing axes of the boom 6a, arm 6b, and bucket 6c are substantially parallel to each other.
スイングブラケツト７を揺動操作する油シリン
ダC4を設けて、第２図に示すように、ブーム６
ａを平面視で旋回台２の前方に張出した第１姿勢
と横側方に張出した第２姿勢に切換えられるよう
に90度以上揺動できるように構成してある。 An oil cylinder C4 for swinging the swing bracket 7 is provided, and as shown in FIG.
It is configured to be able to swing more than 90 degrees so that a can be switched between a first attitude in which it extends forward of the swivel base 2 and a second attitude in which it extends laterally in plan view.
第２図に示すように、旋回台２の回動軸芯P1
とスイングブラケツトの揺動軸芯P2の間隔I1、走
行装置の横巾I2、バケツトの横巾I3の相関が、
I1＞１／２（I2＋I3）＋Ｋ
になつている。但し、Ｋは定数であつて、望まし
くは５〜15cmであり、走行装置１と溝８との間隔
I4が定数Ｋで設定できる。 As shown in Fig. 2, the rotation axis P 1 of the swivel base 2
The correlation between the distance I 1 between the swing axis P 2 of the swing bracket, the width I 2 of the traveling device, and the width I 3 of the bucket is I 1 > 1/2 (I 2 + I 3 ) + K. . However, K is a constant, preferably 5 to 15 cm, and the distance between the traveling device 1 and the groove 8.
I 4 can be set with a constant K.
つまり、上記相関によつて、第１図に示すよう
に、旋回台２を走行装置１の横側方に向けた状態
で、つまり旋回台２をその前端縁が走行装置１に
おける前後の直進方向に沿う姿勢にした状態で、
かつ、ブーム６ａを平面視で走行装置１の直進方
向に沿う第２姿勢にした状態で、バケツト６ｃが
平面視で走行装置１の直進軌跡相当箇所９よりも
外側に位置するようになり、溝８の改修や溝８の
２回掘り等が可能となる。 In other words, due to the above correlation, as shown in FIG. With the posture in line with
In addition, with the boom 6a in the second attitude along the straight-travel direction of the traveling device 1 in plan view, the bucket belt 6c is positioned outside the portion 9 corresponding to the straight-travel trajectory of the traveling device 1 in plan view, and the groove This makes it possible to repair trench 8 and dig trench 8 twice.
〔別実施例〕 次に別実施例を説明する。[Another example] Next, another embodiment will be described.
走行装置１はタイヤ式であつてもよく、また、
ドーザ３は省略してもよい。 The traveling device 1 may be a tire type, and
The dozer 3 may be omitted.
スイングブラケツト７を揺動操作する手段の具
体構成は適宜変更可能であり、それらを駆動装置
C4と総称する。 The specific configuration of the means for swinging the swing bracket 7 can be changed as appropriate, and they can be combined with a drive device.
Collectively referred to as C 4 .
第１図及び第２図は本考案の実施例を示し、第
１図は一部省略平面図、第２図は側面図である。
第３図及び第４図は各別の従来例を示す一部省略
平面図である。
１……走行装置、２……旋回台、６……バツク
ホウ装置、６ａ……ブーム、６ｃ……バケツト、
７……スイングブラケツト、９……走行装置の直
進軌跡相当箇所、P1……回動軸芯、P2……揺動
軸芯。
1 and 2 show an embodiment of the present invention, with FIG. 1 being a partially omitted plan view and FIG. 2 being a side view.
3 and 4 are partially omitted plan views showing different conventional examples. 1...Traveling device, 2...Swivel base, 6...Backhoe device, 6a...Boom, 6c...Bucket,
7... Swing bracket, 9... Point corresponding to the straight trajectory of the traveling device, P 1 ... Rotation axis, P 2 ... Swing axis.
Claims (1)
付けた旋回台２の前端側で左右中央寄りに、バ
ツクホウ装置６を取付けたスイングブラケツト
７を縦軸芯周りで揺動自在に設け、前記バツク
ホウ装置６のブーム６ａを平面視で前記旋回台
２の前方に張出した第１姿勢と、前記旋回台２
の前端縁に沿う状態で横側方に張出した第２姿
勢とに切換えるために、前記スイングブラケツ
ト７を揺動操作する駆動装置C4を設けたバツ
クホウであつて、前記旋回台２をその前端縁が
前記走行装置１における前後の直進方向に沿う
姿勢にした状態で、かつ、前記ブーム６ａを平
面視で前記走行装置１の直進方向に沿う前記第
２姿勢にした状態で、前記バツクホウ装置６の
バケツト６ｃを平面視で前記走行装置１の直進
軌跡相当箇所９よりも外側に位置させるため
に、前記旋回台２の回動軸芯P1と前記スイン
グブラケツト７の揺動軸芯P2の間隔I、前記
走行装置１の横巾I2、前記バケツト６ｃの横巾
I3の相関が、 I1＞１／２（I2＋I3）＋Ｋ になつているバツクホウ。 ２ 前記定数Ｋが５〜15cmである実用新案登録請
求の範囲第１項に記載のバツクホウ。[Scope of Claim for Utility Model Registration] 1. A swing bracket 7 with a backhoe device 6 attached near the left and right center on the front end side of a swivel base 2 which is attached to a traveling device 1 so as to be rotatable around a vertical axis. A first attitude in which the boom 6a of the backhoe device 6 is extended in front of the swivel base 2 in a plan view, and
The backhoe is equipped with a driving device C4 for swinging the swing bracket 7 in order to switch the swing bracket 7 to a second position extending laterally along the front edge of the backhoe. The backhoe device 6 is placed in a state where the edge is in a posture along the forward and backward straight direction of the traveling device 1, and with the boom 6a in the second posture along the straight forward direction of the traveling device 1 in plan view. In order to position the bucket cart 6c on the outside of the portion 9 corresponding to the straight trajectory of the traveling device 1 in plan view, the rotation axis P 1 of the swivel base 2 and the swing axis P 2 of the swing bracket 7 are adjusted. Interval I , Width I 2 of the traveling device 1, Width of the bucket 6c
The correlation of I 3 is I 1 > 1/2 (I 2 + I 3 ) + K. 2. The backhoe according to claim 1, wherein the constant K is 5 to 15 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986126442U JPH0512362Y2 (en) | 1986-08-19 | 1986-08-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986126442U JPH0512362Y2 (en) | 1986-08-19 | 1986-08-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6331152U JPS6331152U (en) | 1988-02-29 |
| JPH0512362Y2 true JPH0512362Y2 (en) | 1993-03-30 |
Family
ID=31020252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986126442U Expired - Lifetime JPH0512362Y2 (en) | 1986-08-19 | 1986-08-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0512362Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS523101U (en) * | 1975-06-24 | 1977-01-11 | ||
| JPS5443803U (en) * | 1977-09-02 | 1979-03-26 |
-
1986
- 1986-08-19 JP JP1986126442U patent/JPH0512362Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6331152U (en) | 1988-02-29 |
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