JPH0336594Y2 - - Google Patents
Info
- Publication number
- JPH0336594Y2 JPH0336594Y2 JP1984011739U JP1173984U JPH0336594Y2 JP H0336594 Y2 JPH0336594 Y2 JP H0336594Y2 JP 1984011739 U JP1984011739 U JP 1984011739U JP 1173984 U JP1173984 U JP 1173984U JP H0336594 Y2 JPH0336594 Y2 JP H0336594Y2
- Authority
- JP
- Japan
- Prior art keywords
- bucket
- main body
- presser frame
- arm
- bucket main
- 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
Links
- 238000009412 basement excavation Methods 0.000 claims description 27
- 230000008602 contraction Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Landscapes
- Load-Engaging Elements For Cranes (AREA)
- Shovels (AREA)
Description
【考案の詳細な説明】
(イ) 考案の属する技術分野
本考案は通常の掘削作業に加えクランプ作業を
行うことができる土木掘削機用の押え枠付バケツ
ト装置に関する。[Detailed description of the invention] (a) Technical field to which the invention pertains The present invention relates to a bucket device with a holding frame for a civil engineering excavator that can perform clamping work in addition to normal excavation work.
(ロ) 従来技術とその問題点
土木掘削機用の考目的アタツチメントの1つと
して通常の掘削作業に加えクランプ作業を可能と
した押え枠付バケツト装置が公知である。(b) Prior art and its problems A bucket device with a holding frame is known as one of the design-purpose attachments for civil engineering excavators, which allows clamping work in addition to normal excavation work.
第1図は従来の押え枠付バケツト装置の一例を
示す側面図である。第1図において土木掘削機の
アーム1の先端にはバケツト本体3が下端部を揺
動可能に枢着され、かつアーム1に支持された
(図示せず)チルトシリンダ2の伸縮作動に連動
して揺動可能とすべく上端ステー部4が上部リン
ク5を介してチルトシリンダ2のシリンダロツド
6先端に枢着されている。上部リンク5は一端を
アーム上に枢着しかつ他端を上部リンクに枢着し
たサブリンク7を介してアーム1に連結されてい
る。上記に加え本装置はさらに押え枠8を含む。
押え枠8はバケツト本体3の開口面13に対応し
た概ね四角形の開口を有する枠体であつて、その
一端がバケツト本体3上にバケツト本体3とアー
ム1との間の枢着ピン10上に枢着され、他端が
バケツト本体の開口面13に対して開閉するよう
揺動可能とされている。押え枠8の一端のバケツ
ト本体への枢着点の下方位置にはチルトシリンダ
2の作動に連動して押え枠を揺動させるべく下部
リンク9の一端が枢着され、下部リンク9の他端
はサブリンク7に枢着されている。 FIG. 1 is a side view showing an example of a conventional bucket tote device with a presser frame. In FIG. 1, a bucket main body 3 is pivotally attached to the tip of an arm 1 of a civil engineering excavator so that its lower end can swing, and is linked to the expansion and contraction operation of a tilt cylinder 2 (not shown) supported by the arm 1. An upper end stay portion 4 is pivotally attached to the tip of a cylinder rod 6 of the tilt cylinder 2 via an upper link 5 so as to be able to swing. The upper link 5 is connected to the arm 1 via a sub-link 7 which has one end pivotally attached to the arm and the other end pivotally attached to the upper link. In addition to the above, the device further includes a presser frame 8.
The presser frame 8 is a frame body having a generally rectangular opening corresponding to the opening surface 13 of the bucket main body 3, and one end thereof is placed on the pivot pin 10 between the bucket main body 3 and the arm 1 on the bucket main body 3. It is pivotally attached, and the other end is swingable to open and close with respect to the opening surface 13 of the bucket main body. One end of a lower link 9 is pivotally connected to a position below the pivot point of one end of the presser frame 8 to the bucket main body in order to swing the presser frame in conjunction with the operation of the tilt cylinder 2, and the other end of the lower link 9 is pivotally connected to sublink 7.
以上の構成によりチルトシリンダ2のシリンダ
ロツド6の伸縮作動によりバケツト本体3および
押え枠8がピン10を共通回転軸として同時にか
つ互いに反対方向へ揺動することができる。 With the above configuration, the bucket main body 3 and the presser frame 8 can be simultaneously swung in opposite directions using the pin 10 as a common rotation axis by the expansion and contraction operation of the cylinder rod 6 of the tilt cylinder 2.
第2図は第1図の従来の押え枠付バケツト装置
のバケツト本体3と押え枠8の揺動状態を示す図
である。チルトシリンダ2のシリンダロツド6が
最も収縮した時は第2図A,aに示すようにバケ
ツト本体3、押え枠8が互いに最も開いた状態と
なる。チルトシリンダ2のシリンダロツド6が伸
長するとバケツト本体3、押え枠8はそれぞれ
B,bに示す位置を経てさらに揺動してC,cに
示す位置に至り、互いに閉止接触した状態とな
る。この時チルトシリンダ2のシリンダロツド6
は中間ストローク点にありまだストロークの余裕
を有しているが、バケツト本体3と押え枠8とが
突きあたつて両者のこれ以上の揺動を許さないた
めもはや伸長できない。チルトシリンダ2のシリ
ンダロツド6が上記と逆に収縮作動するとバケツ
ト本体3と押え枠8は互いに離れる方向へ揺動す
る。バケツト本体と押え枠との上記作動により、
本装置を使用してバケツト本体3のみによる通常
の掘削作業に加え、バケツト本体3と押え枠8と
によるクランプ作業を行うことができる。上記押
え枠付バケツト装置は土木掘削機の標準バケツト
装置に対し押え枠8と下部リンク9を追加するこ
とにより製作することができ、クランプ作業専用
のアタツチメントを新たに購入するより大幅に安
価である。しかも1つの装置で掘削とクランプの
2作業を行なえるという利点を有している。 FIG. 2 is a diagram showing a swinging state of the bucket main body 3 and the presser frame 8 of the conventional bucket cart apparatus with a presser frame shown in FIG. When the cylinder rod 6 of the tilt cylinder 2 is most contracted, the bucket main body 3 and the presser frame 8 are in the most open state as shown in FIGS. 2A and 2A. When the cylinder rod 6 of the tilt cylinder 2 is extended, the bucket main body 3 and the presser frame 8 swing further through the positions shown at B and b, respectively, and reach the positions shown at C and c, where they are in closed contact with each other. At this time, cylinder rod 6 of tilt cylinder 2
Although it is at the intermediate stroke point and still has a margin for stroke, it can no longer extend because the bucket main body 3 and the presser frame 8 butt against each other and do not permit any further swinging of the two. When the cylinder rod 6 of the tilt cylinder 2 contracts in the opposite manner to the above, the bucket main body 3 and the presser frame 8 swing in the direction away from each other. Due to the above operation of the bucket body and presser frame,
Using this device, in addition to normal excavation work using only the bucket main body 3, clamping work using the bucket main body 3 and the holding frame 8 can be performed. The above-mentioned bucket belt device with a holding frame can be manufactured by adding the holding frame 8 and lower link 9 to the standard bucket device of a civil engineering excavator, and is significantly cheaper than purchasing a new attachment exclusively for clamping work. . Moreover, it has the advantage of being able to perform two operations, excavation and clamping, with one device.
しかしながら、上記従来の押え枠付バケツト装
置は下記の問題点を有していた。すなわち、本装
置により通常の掘削作業を行う場合、たとえばバ
ケツト本体3が第2図でAからBの位置へ揺動す
ると押え枠はaからbの位置へバケツト本体に対
し接近する方向へ揺動し、しかもバケツト本体3
の開口面13に対し十分開いた位置にないため、
押え枠8の存在が掘削作業に対する障害となる場
合があり作業能率を損なう。また、掘削作業に対
する障害とならぬよう押え枠8を装置から取外そ
うとした場合、押え枠8とバケツト本体3とは同
一ピン10によりアーム1に対して枢着されてい
るため押え枠8だけを単独で取外すことはでき
ず、バケツト本体3もいつたも同時に取外してか
らバケツト本体3を再組立する必要があり取外し
作業がめんどうであつた。 However, the above-mentioned conventional bucket tote device with a presser frame had the following problems. That is, when performing normal excavation work with this device, for example, when the bucket main body 3 swings from position A to B in FIG. 2, the presser frame swings from position a to position b in the direction approaching the bucket main body. Moreover, the bucket body 3
Because it is not in a sufficiently open position with respect to the opening surface 13 of
The presence of the holding frame 8 may become an obstacle to excavation work, impairing work efficiency. Furthermore, when attempting to remove the presser frame 8 from the device so as not to become an obstacle to excavation work, the presser frame 8 and the bucket main body 3 are pivotally connected to the arm 1 by the same pin 10, so the presser frame 8 It was not possible to remove the bag alone, and it was necessary to remove both the bucket bag and the bag at the same time and then reassemble the bucket bag, making the removal work troublesome.
(ハ) 考案の目的
本考案は上記従来の事情に鑑みなされたもので
あつて下記を目的としている。(c) Purpose of the invention The present invention was created in view of the above-mentioned conventional circumstances, and has the following objectives.
(1) バケツト本体のみによる掘削作業を行うため
に押え枠を取外す場合、バケツト本体を取外す
ことなく押え枠のみを容易に取外すことができ
る押え枠付バケツト装置を提供すること。(1) To provide a bucket tote device with a presser frame that allows only the presser frame to be easily removed without removing the bucket body when the holding frame is removed to perform excavation work using only the bucket body.
(2) 押え枠を取付けたままの状態で掘削作業を行
う場合でも押え枠の存在が掘削作業の障害とな
らず作業能率を損わない押え枠付バケツト装置
を提供すること。(2) To provide a bucket apparatus with a presser frame in which the presence of the presser frame does not impede the excavation work and does not impair work efficiency even when excavation work is performed with the presser frame attached.
(ニ) 考案の構成
土木掘削機のアーム1の先端にその一端部を揺
動可能に枢着11されかつチルトシリンダ2のシ
リンダロツド6先端に上部リンク5を介して前記
一端部の近傍部を枢着されたバケツト本体3と、
一端部を該バケツト本体上に枢着12されかつ
他端部が該バケツト本体の開口面13に対し開閉
可能な押え枠14と、
一端を該アーム上に枢着し他端を該上部リンク
5に連動可能に枢着したサブリンク7と、
一端を該押え枠14の該バケツト本体上の枢着
点12から所定距離離れた位置に枢着20し、他
端を該サブリンク7に連動可能に枢着した下部リ
ンク9とからなり、
該チルトシリンダのシリンダロツド6の伸縮に
より生じさせられる各該リンク5,7,9の運動
により該バケツト本体3の掘削作動とともに該バ
ケツト本体と該押え枠とによるクランプ作用がな
される押え枠付バケツト装置において、
該押え枠14と該バケツト本体3との間の第1
の枢着軸12は、該バケツト本体3及び該アーム
1先端間の第2の枢着軸11と、下部リンク9及
び押え枠14間の第3の枢着軸20とを連結する
直線に関して、前記シリンダロツド6の伸長時に
は略前記アーム1の存する側に位置するが、該シ
リンダロツドの伸縮時には前記第1の枢着軸12
は前記第2の枢着軸11のまわりを該バケツト本
体と一体的に回転して前記連結直線に関して略該
アームの存する側とは反対側へ移動することによ
り、第1及び第2の枢着軸11,12が同軸位置
である場合に比して、少なくともバケツト本体の
一般掘削角度範囲では該押え枠はバケツト開口面
に対しより大きく開いた位置に移動しかつその位
置付近で該押え枠の揺動割合がより小さくなるよ
う、互いにずれた所定位置に配置されている。(d) Structure of the invention One end of the arm 1 of the civil engineering excavator is pivotally attached 11 to the tip of the arm 1, and a portion near the one end is pivoted to the tip of the cylinder rod 6 of the tilt cylinder 2 via an upper link 5. a holding frame 14 whose one end is pivotally mounted 12 on the bucket main body and whose other end can be opened and closed with respect to the opening surface 13 of the bucket main body; and one end is pivotally mounted on the arm. a sub-link 7 whose other end is pivotally connected to the upper link 5; one end is pivotally connected 20 to a position a predetermined distance from the pivot point 12 on the bucket main body of the presser frame 14; and a lower link 9 pivotally connected to the sub-link 7, and the movement of the links 5, 7, and 9 caused by the expansion and contraction of the cylinder rod 6 of the tilt cylinder causes the excavation operation of the bucket main body 3. In the bucket tote device with a presser frame in which the clamping action is performed by the bucket body and the presser frame, the first
The pivot shaft 12 is a straight line connecting the second pivot shaft 11 between the bucket main body 3 and the tip of the arm 1, and the third pivot shaft 20 between the lower link 9 and the presser frame 14. When the cylinder rod 6 is extended, it is located approximately on the side where the arm 1 is present, but when the cylinder rod is extended or contracted, it is located on the side where the first pivot shaft 12 is located.
rotates integrally with the bucket main body around the second pivot shaft 11 and moves toward the side substantially opposite to the side where the arm exists with respect to the connecting line, thereby connecting the first and second pivots. Compared to the case where the shafts 11 and 12 are coaxial, at least in the general excavation angle range of the bucket main body, the presser frame moves to a position that is more open to the bucket opening surface, and near that position, the presser frame They are arranged at predetermined positions shifted from each other so that the swing rate is smaller.
これによりバケツト本体のみによる掘削作業を
行うために押え枠を取外す場合、バケツト本体を
取外すことなく押え枠のみを容易に取外すことが
できる。また、押え枠を取付けたままの状態で掘
削作業を行う場合でも押え枠の存在が掘削作業の
障害とならず作業能率を損わずにすむ。 As a result, when the holding frame is removed to perform excavation work using only the bucket main body, only the holding frame can be easily removed without removing the bucket main body. Further, even when excavation work is performed with the presser frame attached, the presence of the presser frame does not impede the excavation work and does not impair work efficiency.
(ホ) 考案の実施例
第3図は本考案による押え枠付バケツト装置を
示す側面図であつて、第1図に示した従来の押え
枠付バケツト装置とは押え枠14とバケツト本体
3との間の枢着軸がバケツト本体3とアーム1と
の間の枢着軸からバケツト本体開口面13に対し
離れる方向へずれて配置されている点のみ異な
る。すなわち、バケツト本体3とアーム1との間
の枢着ピン11と、バケツト本体3と押え枠14
との間の枢着ピン12が互いに独立して配置され
ている。これにより押え枠14をバケツト本体3
から取外す場合、バケツト本体3とアーム1との
間の取付に影響を与えず独立にかつ容易に取外す
ことができる。(E) Embodiment of the invention FIG. 3 is a side view showing the bucket tote device with a presser frame according to the present invention, and is different from the conventional bucket tote device with a presser frame shown in FIG. The only difference is that the pivot shaft between the bucket main body 3 and the arm 1 is arranged to be shifted away from the bucket main body opening surface 13 from the pivot shaft between the bucket main body 3 and the arm 1. That is, the pivot pin 11 between the bucket main body 3 and the arm 1, and the pivot pin 11 between the bucket main body 3 and the presser frame 14.
The pivot pins 12 between the two are arranged independently from each other. This allows the presser frame 14 to be moved to the bucket main body 3.
When removing it from the bucket, it can be removed independently and easily without affecting the attachment between the bucket main body 3 and the arm 1.
また上記のように押え枠14とバケツト本体3
との間の枢着軸12をバケツト本体3とアーム1
との間の枢着軸11からずらしたことにより押え
枠の揺動運動に変化をもたらすことができる。押
え枠の揺動運動は押え枠とバケツト本体との間の
枢着軸のバケツト本体とアームとの間の枢着軸か
らのずらし位置により、また押え枠を回動させる
リンク機構の設計により異なつたものとなるが、
本考案の効果を示す一例として第3図に示した押
え枠付バケツト装置におけるバケツト本体と押え
枠の揺動運動を第4図に示す。本考案において
は、バケツト本体3及び押え枠14間の枢着ピン
12は、バケツト本体3及びアーム1間の枢着ピ
ン11と下部リンク9及び押え枠14間の枢着ピ
ン20とを連結する直線に関して、第3図のスタ
ンバイ状態(即ち第4図中のバケツト本体3の位
置D′及び押え枠14の位置d′に相当)では、略ア
ーム1の存する側(以下、連結直線の上方とい
う)にある。しかるに、掘削作業時には枢着ピン
12は枢着ピン11の回りを時計方向にバケツト
本体3と一体的に回転して上記連結直線を横切つ
て(このときバケツト本体3及び押え枠14は
夫々第4図中の位置C′及びc′にある)、該連結直
線に関してアーム1の存する側とは反対側(以
下、連結直線の下方という)に移動する。更にバ
ケツト本体3の一般掘削角度範囲(即ち第4図中
の範囲A′〜B′)では押え枠14は殆ど揺動しな
い(即ち第4図中の範囲a′〜b′)。換言すれば、
第2図と第4図は他の条件は同じで押え枠とバケ
ツト本体との間の枢着軸位置の相違のみによる押
え枠の揺動運動の変化を示すものである。前述の
ように第2図の従来の押え枠付バケツト装置にお
いて、チルトシリンダ2のシリンダロツド6の伸
長によりバケツト本体3および押え枠8は互いに
開いた状態から互いに閉じ合う方向へそれぞれ揺
動するが、バケツト本体3が概ね一定の角速度で
揺動する一方押え枠8は前半は角速度が小さく後
半角速度が大きくなる傾向を持つ。また第2図に
おいて、バケツト本体3の一般掘削角度範囲(概
略A〜Bに示す範囲)では押え枠8はa〜bに示
す範囲を揺動しバケツト本体の開口面13に対し
ある角度開いた位置にあり、その間の揺動角度は
バケツト本体の揺動角度に比べ小さいという傾向
がある。本考案による押え枠付バケツト装置にお
いては第4図に示されるように上記傾向をさらに
顕著なものとすることができる。第3図及び第4
図からわかる通り、枢着ピン12が上記連結直線
の上方にある間はバケツト本体3の揺動角度は比
較的小さいが(第4図中範囲D′〜C′)逆に押え枠
14の揺動角度は比較的大きく(同図中範囲d′〜
c′)、また枢着ピン12が連結直線の下方にある
間はバケツト本体の揺動角度は比較的大きいが
(同図中範囲C′〜A′)、逆に押え枠14の揺動角
度は小さくなる(同図中範囲c′〜a′)。これらの
動作は、枢着ピン12,11,20の上記特別の
配置及びリンク機構特有の機能を利用して実現さ
れたものである。バケツト本体3の一般掘削角度
範囲(概略A′〜B′に示す範囲)では押え枠14
はa′〜b′に示すように第2図に示す場合と比べバ
ケツト本体の開口面13に対しより大きく開いた
位置にあり、かつその間の揺動角度(a′→b′)は
第2図における揺動角度(a→b)に比べさらに
小さい。したがつてバケツト本体の一般掘削角度
範囲では押え枠14はバケツト本体開口面13に
対し大きく開いた状態のまま、ほぼ停止状態にあ
るため押え枠の存在がバケツト本体による掘削作
業に対し障害となることはない。また、バケツト
本体3の揺動角度がより大きい範囲(第4図
B′とC′との間の範囲)でも押え枠14のバケツト
本体の開口面13に対する開き角度は従来の押え
枠付バケツト装置におけるよりもより大きくとれ
るので押え枠の存在が掘削作業に対し障害となる
程度は小さくなる。したがつて押え枠を付けたま
まの状態で掘削作業を行う場合でも、本考案によ
る押え枠付バケツト装置は従来の装置に比べ作業
能率の向上を達成することができる。 In addition, as mentioned above, the presser frame 14 and the bucket main body 3
The pivot shaft 12 between the bucket main body 3 and the arm 1
By shifting the pivot shaft 11 between the presser frame and the presser frame, the swinging movement of the presser frame can be changed. The swinging motion of the presser frame varies depending on the offset position of the pivot shaft between the presser frame and the bucket main body from the pivot shaft between the bucket main body and the arm, and the design of the link mechanism that rotates the presser frame. It will be a vine, but
As an example of the effects of the present invention, FIG. 4 shows the rocking motion of the bucket main body and the presser frame in the bucket cart apparatus with presser frame shown in FIG. In the present invention, the pivot pin 12 between the bucket main body 3 and the presser frame 14 connects the pivot pin 11 between the bucket main body 3 and the arm 1 and the pivot pin 20 between the lower link 9 and the presser frame 14. Regarding the straight line, in the standby state shown in FIG. 3 (corresponding to the position D' of the bucket main body 3 and the position d' of the presser frame 14 in FIG. )It is in. However, during excavation work, the pivot pin 12 rotates clockwise around the pivot pin 11 integrally with the bucket main body 3 and crosses the connecting straight line (at this time, the bucket main body 3 and the holding frame 14 are 4) to the side opposite to the side where arm 1 exists with respect to the connecting line (hereinafter referred to as below the connecting line). Further, in the general excavation angle range of the bucket main body 3 (ie, the range A' to B' in FIG. 4), the presser frame 14 hardly swings (ie, the range a' to b' in FIG. 4). In other words,
2 and 4, other conditions being the same, show changes in the swinging motion of the presser frame due to a difference only in the position of the pivot shaft between the presser frame and the bucket main body. As mentioned above, in the conventional bucket tote apparatus with a presser frame shown in FIG. 2, the bucket main body 3 and the presser frame 8 swing from the mutually open state to the direction in which they are mutually closed due to the extension of the cylinder rod 6 of the tilt cylinder 2. While the bucket main body 3 swings at a generally constant angular velocity, the presser frame 8 tends to have a small angular velocity in the first half and a large angular velocity in the second half. In addition, in FIG. 2, in the general excavation angle range of the bucket main body 3 (the range roughly shown in A to B), the presser frame 8 swings in the range shown in a to b and opens at a certain angle with respect to the opening surface 13 of the bucket main body. position, and the swinging angle between them tends to be smaller than the swinging angle of the bucket main body. In the bucket tote device with a presser frame according to the present invention, the above-mentioned tendency can be made even more remarkable as shown in FIG. Figures 3 and 4
As can be seen from the figure, while the pivot pin 12 is above the connection line, the swinging angle of the bucket main body 3 is relatively small (range D' to C' in Fig. 4), but on the contrary, the swinging angle of the presser frame 14 is relatively small (range D' to C' in Fig. 4). The angle of movement is relatively large (range d′~
c'), while the pivot pin 12 is below the connection straight line, the swing angle of the bucket main body is relatively large (range C' to A' in the figure), but conversely, the swing angle of the presser frame 14 is becomes smaller (range c' to a' in the figure). These operations are realized by utilizing the special arrangement of the pivot pins 12, 11, 20 and the unique functions of the link mechanism. In the general digging angle range of the bucket main body 3 (approximately the range shown in A' to B'), the presser frame 14
As shown in a' to b', the opening surface 13 of the bucket main body is in a position that is wider than that shown in FIG. 2, and the swing angle between them (a'→b') is It is even smaller than the swing angle (a→b) in the figure. Therefore, in the general excavation angle range of the bucket main body, the holding frame 14 remains wide open with respect to the opening surface 13 of the bucket main body and is almost at a standstill, so the existence of the holding frame becomes an obstacle to excavation work by the bucket main body. Never. In addition, the swing angle of the bucket main body 3 is larger (see Fig. 4).
Even in the range between B' and C'), the opening angle of the holding frame 14 with respect to the opening surface 13 of the bucket main body can be made larger than in conventional bucket cart devices with a holding frame, so the presence of the holding frame poses an obstacle to excavation work. The extent to which this happens becomes smaller. Therefore, even when performing excavation work with the presser frame still attached, the bucket apparatus with a presser frame according to the present invention can achieve improved work efficiency compared to conventional apparatuses.
(ヘ) 考案の効果
従つて、本考案の上記構成によれば、次に示す
利点がある。(f) Effects of the invention Accordingly, the above structure of the invention has the following advantages.
押え枠14と該バケツト本体3との間の第1
の枢着軸12が、該バケツト本体3及び該アー
ム1先端間の第2の枢着軸11と、下部リンク
9及び押え枠14間の第3の枢着軸20とを連
結する直線に関して、前記シリンダロツド6の
伸長時には略前記アーム1の存する側(即ち上
方)に位置するが、該シリンダロツドの伸縮時
には前記第1の枢着軸12が前記第2の枢着軸
11のまわりを該バケツト本体と一体的に回転
して前記連結直線に関して略該アームの存する
側とは反対側(即ち下方)へ移動するように構
成されている。 The first part between the presser frame 14 and the bucket main body 3
Regarding the straight line in which the pivot shaft 12 connects the second pivot shaft 11 between the bucket main body 3 and the tip of the arm 1, and the third pivot shaft 20 between the lower link 9 and the presser frame 14, When the cylinder rod 6 is extended, it is located approximately on the side where the arm 1 exists (that is, above), but when the cylinder rod is extended or contracted, the first pivot shaft 12 moves around the second pivot shaft 11 toward the bucket main body. The arm is configured to rotate integrally with the arm and move substantially toward the opposite side (ie, downward) from the side where the arm exists with respect to the connecting straight line.
従つて、押え枠を取付けたまま掘削作業を行
う場合、少なくともバケツト本体の一般掘削角
度範囲では、前記第1の枢着軸12が前記連結
直線より下方に位置するためリンク特有の機能
により、該押え枠はバケツト開口面に対し大き
く開いた位置に自動的に移動されてしかもその
位置付近で揺動割合がより小さくなるようにさ
れ(即ち略停止され)、該押え枠がバケツト本
体の掘削作業の障害にならないようにしてい
る。従つて、バケツト掘削作業能率の向上が達
成され、しかも押え枠をアームから取外す作業
も不要ゆえ、一層作業効率を向上し得る。 Therefore, when excavating with the presser frame attached, at least in the general excavation angle range of the bucket main body, the first pivot shaft 12 is located below the connecting straight line, so the unique function of the link prevents the The holding frame is automatically moved to a position that is wide open with respect to the opening surface of the bucket, and the swing rate is made smaller near that position (i.e., it is almost stopped), so that the holding frame is used for excavating the bucket main body. I try not to get in the way of this. Therefore, the efficiency of bucket excavation work is improved, and since there is no need to remove the presser frame from the arm, the work efficiency can be further improved.
更にバケツト本体による掘削作業の終了時に
は、押え枠がバケツト開口面に位置するゆえ、
荷こぼれ防止等の機能を果たし得、更に作業効
率を向上し得る。 Furthermore, at the end of the excavation work using the bucket main body, the holding frame is located on the opening surface of the bucket, so
It can perform functions such as preventing cargo from spilling, and can further improve work efficiency.
また、上記の押え枠の動きは更にリンク機構
みにより達成され液圧作動機構等を何等必要と
しないので、構成を簡単化してコストを低減し
得ると共に、その保守、点検等の面倒を除去し
得る。 Furthermore, the movement of the presser frame is achieved by a link mechanism and does not require any hydraulic actuating mechanism, which simplifies the configuration and reduces costs, and eliminates the trouble of maintenance and inspection. obtain.
更に特にバケツト本体のみによる掘削作業を
行いたい場合には押え枠を取外す場合には、バ
ケツト本体を一旦アームから取外すという余分
な作業を伴わずに、押え枠のみを容易にバケツ
ト本体から取外すことができ、取外し作業を簡
易化し得る。 Furthermore, if you want to perform excavation work using only the bucket body and remove the presser frame, you can easily remove only the presser frame from the bucket body without the extra work of once removing the bucket body from the arm. This simplifies the removal work.
第1図は従来の押え枠付バケツト装置の一例を
示す側面図、第2図は第1図の押え枠付バケツト
装置のバケツト本体と押え枠の揺動運動を示す
図、第3図は本考案による押え枠付バケツト装置
を示す側面図、第4図は第3図の押え枠付バケツ
ト装置のバケツト本体と押え枠の揺動運動を示す
図。
1……アーム、2……チルトシリンダ、3……
バケツト本体、5……上部リンク、6……チルト
シリンダのシリンダロツド、7……サブリンク、
8,14……押え枠、9……下部リンク、11…
…バケツト本体とアーム先端との間の枢着ピン、
12……押え枠とバケツト本体との間の枢着ピ
ン。
Fig. 1 is a side view showing an example of a conventional bucket tote device with a presser frame, Fig. 2 is a diagram showing the rocking movement of the bucket main body and the presser frame of the bucket tot device with a presser frame shown in Fig. 1, and Fig. 3 is a side view showing an example of a conventional bucket tot device with a presser frame. FIG. 4 is a side view showing the invented bucket tote device with a presser frame, and FIG. 4 is a diagram showing the rocking motion of the bucket tote body and the presser frame of the bucket tot device with a presser frame of FIG. 3; 1... Arm, 2... Tilt cylinder, 3...
Bucket main body, 5... Upper link, 6... Cylinder rod of tilt cylinder, 7... Sub link,
8, 14...presser frame, 9...lower link, 11...
...Pivot pin between the bucket body and the arm tip,
12... Pivot pin between the presser frame and the bucket body.
Claims (1)
動可能に枢着11されかつチルトシリンダ2のシ
リンダロツド6先端に上部リンク5を介して前記
一端部の近傍部を枢着されたバケツト本体3と、 一端部を該バケツト本体上に枢着12されかつ
他端部が該バケツト本体の開口面13に対し開閉
可能な押え枠14と、 一端を該アーム上に枢着し他端を該上部リンク
5に連動可能に枢着したサブリンク7と、 一端を該押え枠14の該バケツト本体上の枢着
点12から所定距離離れた位置に枢着20し、他
端を該サブリンク7に連動可能に枢着した下部リ
ンク9とからなり、 該チルトシリンダのシリンダロツド6の伸縮に
より生じさせられる各該リンク5,7,9の運動
により該バケツト本体3の掘削作動とともに該バ
ケツト本体と該押え枠とによるクランプ作用がな
される押え枠付バケツト装置において、 該押え枠14と該バケツト本体3との間の第1
の枢着軸12は、該バケツト本体3及び該アーム
1先端間の第2の枢着軸11と、下部リンク9及
び押え枠14間の第3の枢着軸20とを連結する
直線に関して、前記シリンダロツド6の伸長時に
は略前記アーム1の存する側に位置するが、該シ
リンダロツドの伸縮時には前記第1の枢着軸12
が前記第2の枢着軸11のまわりを該バケツト本
体と一体的に回転して前記連結直線に関して略該
アームの存する側とは反対側へ移動することによ
り、第1及び第2の枢着軸11,12が同軸位置
である場合に比して、少なくともバケツト本体の
一般掘削角度範囲では該押え枠はバケツト開口面
に対しより大きく開いた位置に移動しかつその位
置付近で該押え枠の揺動割合がより小さくなるよ
う、互いにずれた所定位置に配置されていること
を特徴とする押え枠付バケツト装置。[Claims for Utility Model Registration] One end of the arm 1 of a civil engineering excavator is pivotably mounted 11 to the tip of the arm 1, and a portion near the one end is connected to the tip of the cylinder rod 6 of the tilt cylinder 2 via an upper link 5. A holding frame 14 having one end pivotably mounted on the bucket main body 12 and the other end capable of opening and closing with respect to the opening surface 13 of the bucket main body, and one end mounted on the arm. a sub-link 7 which is pivotally connected and whose other end is pivotally connected to the upper link 5; one end which is pivotally connected 20 to a position a predetermined distance from the pivot point 12 on the bucket main body of the presser frame 14; The bucket body 3 is excavated by the movement of each of the links 5, 7, and 9 caused by the expansion and contraction of the cylinder rod 6 of the tilt cylinder. In a bucket cart device with a presser frame in which a clamping action is performed by the bucket cart main body and the presser frame during operation, the first
The pivot shaft 12 is a straight line connecting the second pivot shaft 11 between the bucket main body 3 and the tip of the arm 1, and the third pivot shaft 20 between the lower link 9 and the presser frame 14. When the cylinder rod 6 is extended, it is located approximately on the side where the arm 1 is present, but when the cylinder rod is extended or contracted, it is located on the side where the first pivot shaft 12 is located.
rotates integrally with the bucket main body around the second pivot shaft 11 and moves toward the side substantially opposite to the side where the arm exists with respect to the connecting line, thereby connecting the first and second pivots. Compared to the case where the shafts 11 and 12 are coaxial, at least in the general excavation angle range of the bucket main body, the presser frame moves to a position that is more open to the bucket opening surface, and near that position, the presser frame A bucket storage device with a presser frame, characterized in that the buckets are arranged at predetermined positions offset from each other so that the rate of swing is smaller.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1173984U JPS60126545U (en) | 1984-01-31 | 1984-01-31 | Bucket device with presser frame |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1173984U JPS60126545U (en) | 1984-01-31 | 1984-01-31 | Bucket device with presser frame |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60126545U JPS60126545U (en) | 1985-08-26 |
JPH0336594Y2 true JPH0336594Y2 (en) | 1991-08-02 |
Family
ID=30494138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1173984U Granted JPS60126545U (en) | 1984-01-31 | 1984-01-31 | Bucket device with presser frame |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60126545U (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5223121U (en) * | 1975-08-08 | 1977-02-18 | ||
JPS5437403A (en) * | 1977-08-29 | 1979-03-19 | Nippon Telegr & Teleph Corp <Ntt> | Automatic gain control method for light receiving circuit |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5894746U (en) * | 1981-12-18 | 1983-06-27 | 油谷重工株式会社 | Hydraulic excavator gripping device |
-
1984
- 1984-01-31 JP JP1173984U patent/JPS60126545U/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5223121U (en) * | 1975-08-08 | 1977-02-18 | ||
JPS5437403A (en) * | 1977-08-29 | 1979-03-19 | Nippon Telegr & Teleph Corp <Ntt> | Automatic gain control method for light receiving circuit |
Also Published As
Publication number | Publication date |
---|---|
JPS60126545U (en) | 1985-08-26 |
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