JPS6120128Y2 - - Google Patents
Info
- Publication number
- JPS6120128Y2 JPS6120128Y2 JP636880U JP636880U JPS6120128Y2 JP S6120128 Y2 JPS6120128 Y2 JP S6120128Y2 JP 636880 U JP636880 U JP 636880U JP 636880 U JP636880 U JP 636880U JP S6120128 Y2 JPS6120128 Y2 JP S6120128Y2
- Authority
- JP
- Japan
- Prior art keywords
- pair
- mounting frame
- lift arm
- wrist
- working part
- 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
- 210000000707 wrist Anatomy 0.000 claims description 14
- 230000005484 gravity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Shovels (AREA)
Description
【考案の詳細な説明】
本考案はフロントローダ等の作業部の上昇量増
加装置に関し、従来よりも高所への重量物の積み
降し作業等を安定した状態で従来同様に容易に行
なえるようにすることを目的とする。[Detailed description of the invention] The present invention relates to a device for increasing the lifting amount of the working part of a front loader, etc., and allows loading and unloading of heavy objects to higher places than before in a stable condition and as easily as before. The purpose is to do so.
例えば、トラクタにフロントローダを備えて、
肥料や土砂等の運搬を行うのは周知である。とこ
ろで、このフロントローダのバケツトの最大持上
げ高さを高くして、従来より高所への積み降し作
業を行えるようにするには、リフトアームの長さ
を長くすることと、リストシリンダの長さを長く
してその伸縮量を増加させることの2方法があ
る。然し乍ら、前者の方法を採用した場合には、
フロントローダの重心、特にバケツトに運搬物、
それも重量物を搭載したときの重心が従来よりも
かなり前方側にくるので、作業を安定した状態で
行えず、トラクタが転倒する惧れさえ生じる。ま
た、後者の方法を採用した場合には、リフトアー
ムとリストシリンダのなす角が従来より小さくな
つてリストシリンダの持上げ力を充分に有効に生
かすことができなくなり、重量物の運搬を行えな
くなると云う問題を生じる。従つて、従来に於い
ては、従来よりも高所への積み降し作業を安定し
た状態で行えるようにしたくてもできなかつたの
が実情である。 For example, if a tractor is equipped with a front loader,
It is well known that they transport fertilizers, soil, etc. By the way, in order to increase the maximum lifting height of the bucket of this front loader and enable loading and unloading work to higher places than before, it is necessary to increase the length of the lift arm and the length of the wrist cylinder. There are two methods: increasing the length and increasing the amount of expansion and contraction. However, if the former method is adopted,
The center of gravity of the front loader, especially when carrying objects in the bucket,
Furthermore, when a heavy load is loaded, the center of gravity is much further forward than in the past, making it impossible to work in a stable manner, and even creating a risk that the tractor may tip over. In addition, if the latter method is adopted, the angle formed between the lift arm and the wrist cylinder becomes smaller than before, making it impossible to fully utilize the lifting force of the wrist cylinder, making it impossible to carry heavy objects. The problem arises. Therefore, in the past, it has not been possible to perform loading and unloading operations at higher locations in a stable manner than before.
本考案は上記実情を解決したものであつて、そ
の特徴とする処は、車体両側に備えた一対の主フ
レームに左右一対の取付フレームを上下動自在に
装備して、これら取付フレーム上端部に、先端部
に作業部を備えた左右一対のリストアームの基部
側を上下方向に回動自在に枢支して、各リストア
ームと各取付フレームとを左右一対のリフトシリ
ンダにより連結すると共に、各リフトアームの各
取付フレームから作業部側とは反対側に延出させ
た基端部と各主フレームの下部とを、リフトアー
ムの回動により取付フレームが上下動するよう
に、左右一対の連結リンクにより連結した点にあ
る。 The present invention solves the above-mentioned situation, and its feature is that a pair of left and right mounting frames are mounted on a pair of main frames on both sides of the vehicle body, and are movable up and down. , the base sides of a pair of left and right wrist arms each having a working part at the tip are pivotably supported in the vertical direction, and each wrist arm and each mounting frame are connected by a pair of left and right lift cylinders. A pair of left and right connections are made between the base end of the lift arm extending from each mounting frame to the side opposite to the working part and the lower part of each main frame so that the mounting frame moves up and down as the lift arm rotates. At points connected by links.
以下、本考案の一実施例を図面に基き説明すれ
ば、1はトラクタ機体で、同機体1にはフロント
ローダにて例示する作業機2を備えている。機体
1両側には一対の主フレーム3を備えてあり、該
主フレーム3前部に保持部4を設けてある。前記
保持部4は内向きに突出させたリツプ部を有する
溝形材形状で、上方及び前方側に開口させてあ
り、各保持部4に左右一対の取付フレーム5を上
下方向に摺動又は移動自在に上方側から挿脱自在
に挿入している。前記取付フレーム5は下部側の
角筒部6と、角筒部6上端に固設して保持部4か
ら上方に突出させた形状の枢支部7とを有し、角
筒部6と保持部4に設けたピン孔8,9に固定ピ
ン10を挿脱自在に挿入すれば取付フレーム5を
主フレーム3に固定可能としてある。また、前記
枢支部7には作業機2の左右一対のリフトアーム
11の基部側をピン12により枢支している。こ
れらリフトアーム11先端部には、バケツトにて
例示する作業部13を備えて、この作業部13を
左右一対の作業部用シリンダ14により回動操作
可能とすると共に、各リフトアーム11の前後方
向中途部と、各取付フレーム5の角筒部6の高さ
方向中途部前面から保持部4前方側に突設させた
一対のブラケツト15とを左右一対のリストシリ
ンダ16により連結している。17はピン18,
19により脱着自在に備える左右一対の連結リン
クで、各リフトアーム11の取付フレーム5から
作業部13側とは反対側である後方側に延出させ
た基端部と、各保持部4の下端部後面の一対のブ
ラケツト20とを連結しており、リフトアーム1
1の昇降により取付フレーム5が上下動するよう
にしている。 An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a tractor body, and the body 1 is equipped with a working machine 2, exemplified as a front loader. A pair of main frames 3 are provided on both sides of the fuselage 1, and a holding portion 4 is provided at the front of the main frames 3. The holding portions 4 have a channel shape with an inwardly protruding lip portion, and are open upward and forward.A pair of left and right mounting frames 5 can be slid or moved in the vertical direction on each holding portion 4. It can be freely inserted and removed from the upper side. The mounting frame 5 has a square tube part 6 on the lower side and a pivot part 7 fixedly attached to the upper end of the square tube part 6 and protruding upward from the holding part 4. The mounting frame 5 can be fixed to the main frame 3 by removably inserting fixing pins 10 into pin holes 8 and 9 provided in the main frame 3. Further, the base portions of a pair of left and right lift arms 11 of the working machine 2 are pivotally supported on the pivot portion 7 by pins 12. The tips of these lift arms 11 are equipped with a working part 13 exemplified by a bucket, and this working part 13 can be rotated by a pair of left and right working part cylinders 14, and the front and back directions of each lift arm 11 are The midway portion and a pair of brackets 15 protruding from the front surface of the midway portion in the height direction of the rectangular tube portion 6 of each mounting frame 5 toward the front side of the holding portion 4 are connected by a pair of left and right wrist cylinders 16. 17 is pin 18,
A pair of left and right connecting links 19 that can be freely attached and detached include a base end portion extending from the mounting frame 5 of each lift arm 11 to the rear side, which is the side opposite to the working part 13 side, and a lower end of each holding part 4. The lift arm 1 is connected to a pair of brackets 20 on the rear surface of the lift arm 1.
The mounting frame 5 moves up and down as the mounting frame 1 moves up and down.
上記のように構成した実施例によれば、第1図
に示す状態からリストシリンダ16を伸長させれ
ば第3図に示すように取付フレーム5が上方側に
移動しつつリフトアーム11がピン12廻りに回
動する。従つて、リフトアーム11の取付フレー
ム5より前方側部分の長さ、リストシリンダ16
の長さ及びリフトアーム11の最大回動角が従来
と同一でも、作業部13の最大持上高さを従来よ
り高くでき、従来より高所への積み降し作業が可
能となる。そしてリフトアーム11の長さを従来
と同一とすれば、作業機2の重心の平面視に於け
る位置も従来と略同一にできるから、安定した作
業が可能となり、また、リストシリンダ16の長
さを従来と同一とすれば、リストシリンダ16と
リフトアーム11のなす角を従来と同一にできる
から、リストシリンダ16の持上げ力を従来同様
に充分に有効に使用でき、ここに、本考案を採用
すれば、従来より高所への重量物の積み降し作業
を容易に行うことが可能となる。また、リフトア
ーム11の最大回動角を従来と同一とすれば、作
業部13を最大持上高さに上昇させた際の作業部
13とトラクタ機体1間の平面視に於ける距離も
従来と同一にでき、従来より高所への積み降し作
業も従来同様に容易に行える。 According to the embodiment configured as described above, when the wrist cylinder 16 is extended from the state shown in FIG. 1, the mounting frame 5 moves upward as shown in FIG. rotate around. Therefore, the length of the front side of the lift arm 11 from the mounting frame 5, the wrist cylinder 16
Even if the length of the lift arm 11 and the maximum rotation angle of the lift arm 11 are the same as before, the maximum lifting height of the working part 13 can be made higher than before, and loading and unloading operations at higher places than before are possible. If the length of the lift arm 11 is the same as the conventional one, the position of the center of gravity of the work equipment 2 in plan view can also be made almost the same as that of the conventional one, making it possible to perform stable work. If the height is the same as before, the angle formed by the wrist cylinder 16 and the lift arm 11 can be made the same as before, so the lifting force of the wrist cylinder 16 can be used as effectively as before. If adopted, it will be possible to load and unload heavy objects to higher places more easily than before. Furthermore, if the maximum rotation angle of the lift arm 11 is the same as the conventional one, the distance in plan view between the working part 13 and the tractor body 1 when the working part 13 is raised to the maximum lifting height is also the same as that of the conventional one. Loading and unloading work to higher places can be carried out as easily as before.
なお、作業部13の最大持上高さが従来と同一
でよいときは、第4図に示すように、取付フレー
ム5と主フレーム3の保持部4とを固定ピン10
により固定すると共に、連結リンク17を取外せ
ば、リフトアーム11の昇降により取付フレーム
5が上下動することはなく、従来の作業機と同様
に安定した作業を行える。 In addition, when the maximum lifting height of the working part 13 is the same as the conventional one, as shown in FIG.
If the connecting link 17 is removed, the mounting frame 5 will not move up and down due to the lifting and lowering of the lift arm 11, and stable work can be performed like a conventional working machine.
以上詳述したように、本考案は、リフトアーム
の回動によりリフトアームを枢支する取付フレー
ムが上下動するから、リフトアームの取付フレー
ムより前方側部分の長さ、リストシリンダの長さ
及びリフトアームの最大回動角が従来と同一でも
作業部の最大持上げ高さを従来より高くでき、従
つて本考案を採用すれば、従来より高所への重量
物の積み降し作業等を安定した状態で従来同様に
容易に行える。 As detailed above, in the present invention, since the mounting frame that pivotally supports the lift arm moves up and down as the lift arm rotates, the length of the portion of the lift arm in front of the mounting frame, the length of the wrist cylinder, Even if the maximum rotation angle of the lift arm is the same as before, the maximum lifting height of the working part can be made higher than before. Therefore, if this invention is adopted, loading and unloading of heavy objects from higher places can be performed more stably than before. It can be easily performed in the same state as before.
図面は本考案の一実施例を例示し、第1図はフ
ロントローダ付トラクタの側面図、第2図は要部
分解斜視図、第3図は第1図の作業状態図、第4
図は取付フレームを主フレームに固定すると共に
連結リンクを取外したフロントローダ付トラクタ
の作業状態を合せて示す側面図である。
1……トラクタ機体、2……作業機、3……主
フレーム、5……取付フレーム、11……リフト
アーム、16……リストシリンダ、17……連結
リンク。
The drawings illustrate one embodiment of the present invention; FIG. 1 is a side view of a tractor with a front loader, FIG. 2 is an exploded perspective view of the main parts, FIG. 3 is a working state diagram of FIG. 1, and FIG.
The figure is a side view showing a working state of the tractor with a front loader with the mounting frame fixed to the main frame and the connecting link removed. DESCRIPTION OF SYMBOLS 1... Tractor body, 2... Working machine, 3... Main frame, 5... Mounting frame, 11... Lift arm, 16... Wrist cylinder, 17... Connection link.
Claims (1)
の取付フレームを上下動自在に装備して、これら
取付フレーム上端部に、先端部に作業部を備えた
左右一対のリストアームの基部側を上下方向に回
動自在に枢支して、各リストアームと各取付フレ
ームとを左右一対のリフトシリンダにより連結す
ると共に、各リフトアームの各取付フレームから
作業部側とは反対側に延出させた基端部と各主フ
レームの下部とを、リフトアームの回動により取
付フレームが上下動するよに、左右一対の連結リ
ンクにより連結したことを特徴とするフロントロ
ーダ等の作業部の上昇量増加装置。 A pair of main frames on both sides of the vehicle body is equipped with a pair of left and right mounting frames that can move vertically, and the base sides of a pair of left and right wrist arms with working parts at the tips are attached to the upper ends of these mounting frames in the vertical direction. Each wrist arm and each mounting frame are connected to each other by a pair of left and right lift cylinders, and a base extending from each mounting frame of each lift arm to the side opposite to the working part side is attached. A device for increasing the lifting amount of a working part of a front loader, etc., characterized in that the end portion and the lower part of each main frame are connected by a pair of left and right connecting links so that the mounting frame moves up and down as the lift arm rotates. .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP636880U JPS6120128Y2 (en) | 1980-01-21 | 1980-01-21 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP636880U JPS6120128Y2 (en) | 1980-01-21 | 1980-01-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56110161U JPS56110161U (en) | 1981-08-26 |
JPS6120128Y2 true JPS6120128Y2 (en) | 1986-06-17 |
Family
ID=29603036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP636880U Expired JPS6120128Y2 (en) | 1980-01-21 | 1980-01-21 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6120128Y2 (en) |
-
1980
- 1980-01-21 JP JP636880U patent/JPS6120128Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS56110161U (en) | 1981-08-26 |
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