JPS6312203Y2 - - Google Patents
Info
- Publication number
- JPS6312203Y2 JPS6312203Y2 JP1981031828U JP3182881U JPS6312203Y2 JP S6312203 Y2 JPS6312203 Y2 JP S6312203Y2 JP 1981031828 U JP1981031828 U JP 1981031828U JP 3182881 U JP3182881 U JP 3182881U JP S6312203 Y2 JPS6312203 Y2 JP S6312203Y2
- Authority
- JP
- Japan
- Prior art keywords
- lifting cylinder
- top link
- link
- vehicle body
- point
- 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
- 210000001015 abdomen Anatomy 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
Landscapes
- Component Parts Of Construction Machinery (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
Description
【考案の詳細な説明】 本考案は、前装三点リンク装置に関する。[Detailed explanation of the idea] The present invention relates to a front three-point linkage device.
トラクタ車体の前部に昇降自在に三点リンクを
装備させ、除雪機、排土板、モーア等の作業機を
連結自在にしたものは既知である。 It is known that the front part of the tractor body is equipped with a three-point link so that it can be raised and lowered, and a working machine such as a snow blower, earth removal plate, mower, etc. can be connected thereto.
この前装三点リンクにおいては、トラクタ車体
の前方に作業機が昇降自在とされることから、三
点リンク自体のコンパクトな設計が必要であり、
又、コンパクトな設計でありながら、こじれのな
い確実円滑な昇降を確保しなければならない。 With this front-mounted three-point link, the work equipment can be raised and lowered in front of the tractor body, so the three-point link itself needs to be designed compactly.
In addition, although the design is compact, it must ensure smooth and reliable lifting and lowering without twisting.
従来例にあつては、トツプリンクと昇降シリン
ダが相互干渉することから、両者を車体巾方向に
位置ずれさせて設けているのが通例であり、これ
では前記要望を達成するのが困難であつた。 In conventional examples, since the top link and the lifting cylinder interfere with each other, it is common to provide them with a position offset in the width direction of the vehicle body, which makes it difficult to achieve the above-mentioned requirements. Ta.
本考案は以上の点に鑑み、これを解消せんがた
め案出されたもので、以下、図面を参照して実施
例を詳述する。 In view of the above points, the present invention was devised to solve this problem, and embodiments thereof will be described in detail below with reference to the drawings.
第1図、第2図は作業機として除雪機を、第3
図、第4図は排土板を装着した場合の一例を示す
が、作業機はその他、モーア等であつてもよい。 Figures 1 and 2 show a snow blower as a working machine, and a snow blower as a working machine.
Although FIG. 4 shows an example in which a soil removal plate is attached, the working machine may be a mower or the like.
各図において、1はトラクタ車体であり、エン
ジン2が前部寄りに搭載され、ボンネツト3で囲
まれている。4は前車軸受台で、左右一対のフレ
ーム5の前部にバンパ6をかけ渡して構成され、
フレーム5はエンジン側壁に固設されて前方に延
び図示しないセンターピンで、前輪7を懸架して
いる。 In each figure, reference numeral 1 denotes a tractor body, in which an engine 2 is mounted near the front and is surrounded by a bonnet 3. Reference numeral 4 denotes a front vehicle bearing stand, which is constructed by extending a bumper 6 over the front part of a pair of left and right frames 5.
The frame 5 is fixed to the side wall of the engine, extends forward, and suspends the front wheel 7 using a center pin (not shown).
8は三点リンクであり、前車軸受台4に設けて
ある。即ち、受台4に左右一対のロワーリンクブ
ラケツト9を固設し、筋違いステー10を介して
補強して下方に延設するとともに、該ブラケツト
9の下部を互いにクロスバーで連結して正面視コ
字形となし、該クロスバーに車体下腹部11にフ
ランジボルト結合手段12を介して固設した支持
アーム13の先端を固設している。なお、支持ア
ーム乃至ビーム13は車体下腹部中央に沿つて前
方に延びている。 8 is a three-point link, which is provided on the front vehicle bearing stand 4. That is, a pair of left and right lower link brackets 9 are fixed to the pedestal 4, reinforced through brace stays 10, and extended downward, and the lower portions of the brackets 9 are connected to each other with a cross bar to form a front view. The tip of a support arm 13, which is fixed to the lower abdomen 11 of the vehicle body via a flange bolt connecting means 12, is fixed to the cross bar. Note that the support arm or beam 13 extends forward along the center of the lower abdomen of the vehicle body.
左右一対のロワーリンク14はその一端が前記
ブラケツト9の各下端に枢支ピン15を介して枢
着されて前方に延び、各リンク14の長手方向中
間にクロスバー16をかけ渡し状に固設して成
り、該バー16は箱形中空断面であり、その長手
方向中間にブラケツト17を有する。 One end of the pair of left and right lower links 14 is pivotally connected to each lower end of the bracket 9 via a pivot pin 15 and extends forward, and a cross bar 16 is fixed in the longitudinal direction midway of each link 14 in a bridging manner. The bar 16 has a box-shaped hollow cross section and has a bracket 17 in the middle in the longitudinal direction.
18はトツプリンク取付け体であり、前記バン
パ6を基板19と挟持板20で挟み込みボルト2
1で挟着し成り、ボルト21の締結弛緩により車
巾方向に摺動固定自在であるとともに着脱自在で
ある。 Reference numeral 18 denotes a top link attachment body, which holds the bumper 6 between a base plate 19 and a clamping plate 20 and attaches the bolt 2.
1, and can be slid and fixed in the width direction of the vehicle by tightening and loosening bolts 21, and can be detached and attached.
基板19には左右一対の取付プレート22が固
設され上方に立上つており、該プレート22の上
部にピン23を介して昇降シリンダ24の一端が
着脱自在に枢支され、昇降シリンダ24の他端は
クロスバー16のブラケツト17にピン25にて
着脱自在に枢支され、ここに、送液パイプ26,
26Aを介して油圧が作用することで、ロワーリ
ンク14は枢支ピン15を支点に昇降揺動自在で
ある。 A pair of left and right mounting plates 22 are fixed to the base plate 19 and stand upwardly. One end of a lifting cylinder 24 is removably pivoted to the upper part of the plate 22 via a pin 23. The end is removably pivoted to the bracket 17 of the cross bar 16 with a pin 25, and the liquid feeding pipe 26,
By applying hydraulic pressure via 26A, the lower link 14 can freely swing up and down using the pivot pin 15 as a fulcrum.
27はトツプリンクであり、その一端に2又部
28を有し、この2又部28が取付プレート22
に枢支ピン29で着脱自在に枢着され、かつ、2
又部28に前記昇降シリンダ24が挿設されて両
者24,27は側面視においてX字状に交叉して
おり、2又部28は相対運動しても相互干渉しな
い長さと幅を有している。なお、トツプリンク2
7はねじ構造、油圧構造等による伸縮固定部30
を有する。 27 is a top link, which has a fork 28 at one end, and this fork 28 connects to the mounting plate 22.
is removably pivoted to with a pivot pin 29, and 2
The elevating cylinder 24 is inserted into the bifurcated portion 28, and both 24 and 27 intersect in an X-shape when viewed from the side, and the bifurcated portion 28 has a length and width that do not interfere with each other even when they move relative to each other. There is. In addition, Toplink 2
7 is a telescopic fixing part 30 with a screw structure, hydraulic structure, etc.
has.
第1.2図のように除雪機31を装着するとき
には巻掛伝動式で示す動力取出装置32と除雪機
31の動力受入軸33をカバー34付のジヨイン
ト軸35で連動連結するため、トツプリンク取付
け体18はバンパ6の一側寄りに偏在している
も、第3・4図のように排土板36を装着すると
きにはジヨイント軸35等の動力取出系が不用で
あることから、トツプリンク取付け体18は車体
巾中央においてバンパ6に固定される。従つて、
動力取出装置32は図示しないボルトの締結弛緩
で着脱自在である。 When installing the snow blower 31 as shown in Fig. 1.2, the power take-off device 32 shown as a wrap transmission type and the power receiving shaft 33 of the snow blower 31 are interlocked and connected by a joint shaft 35 with a cover 34, so the top link Although the mounting body 18 is unevenly located on one side of the bumper 6, when installing the earth removal plate 36 as shown in Figs. 3 and 4, a power take-off system such as a joint shaft 35 is not required, The mounting body 18 is fixed to the bumper 6 at the center of the vehicle body width. Therefore,
The power take-off device 32 can be attached and detached by tightening and loosening bolts (not shown).
いずれにしても、ロワーリンク14は作業機下
部のブラケツト37又は38にピン39で着脱自
在に枢着され、トツプリンク27は作業機上部の
ブラケツト40又は41にピン42で着脱自在に
枢着される。なお、除雪機31は集雪オーガ4
3、ブロア44及び放出シユート45等を備えて
成り、シユート45は連動体46にて運転席より
遠隔操作して方向変換自在である。その他、第1
−2図において、47は動力伝動軸を示し、エン
ジンに連動する。 In any case, the lower link 14 is removably connected to a bracket 37 or 38 at the bottom of the work machine with a pin 39, and the top link 27 is removably connected to a bracket 40 or 41 at the top of the work machine with a pin 42. Ru. In addition, the snow blower 31 is a snow collecting auger 4.
3, a blower 44, a discharge chute 45, etc., and the direction of the chute 45 can be changed by remote control from the driver's seat using an interlocking body 46. Others, 1st
In Figure 2, 47 indicates a power transmission shaft, which is linked to the engine.
以上の構成において、三点リンク8はロワーリ
ンク14をピン39を介してブラケツト37又は
38に、トツプリンク取付27をピン42を介し
てブラケツト40又41に枢着すれば、除雪機3
1又は拝土板36がそれぞれ装着可能であり、い
ずれの場合でも送液パイプ26,26Aを介して
油圧を昇降シリンダ24に送液すれば、三点リン
ク8を介して除雪機31又は排土板36が昇降自
在となる。 In the above configuration, the three-point link 8 can be attached to the snow blower 3 by pivotally connecting the lower link 14 to the bracket 37 or 38 via the pin 39 and the top link attachment 27 to the bracket 40 or 41 via the pin 42.
In either case, if hydraulic pressure is sent to the lifting cylinder 24 via the liquid sending pipes 26, 26A, the snow blower 31 or the earth removal device can be installed via the three-point link 8. The plate 36 can be moved up and down.
このとき、昇降シリンダ24はトツプリンク2
7の2又部28に挿設されているが故に、両者2
4,27の相互干渉はなく昇降シリンダ24の昇
降力をクロスバー16を介してロワーリンク1
4,14間の中央に作用せしめることができ、つ
まり、三点リンク8の左右中央に作用することが
でき、ここに、こじれのない軽快かつ確実な昇降
を確保する。 At this time, the lifting cylinder 24 is
Because it is inserted in the bifurcated part 28 of 7, both 2
4 and 27, and the lifting force of the lifting cylinder 24 is transferred to the lower link 1 via the crossbar 16.
It can be applied to the center between 4 and 14, that is, it can be applied to the left and right center of the three-point link 8, thereby ensuring smooth and reliable lifting and lowering.
なお、除雪機31又は図示しないモーア等の所
謂駆動形作業機のときには三点リンク8による昇
降とともに動力取出装置32等による伝動が可能
とされるのである。また、昇降シリンダ24は図
とは逆にピストンロツドを取付け体18に、チユ
ーブをロワーリンク14に枢支したものでもよ
く、昇揚のみ油圧で、降下は自重でなす単動式で
あつてもよい。 In addition, in the case of a so-called drive-type working machine such as a snow blower 31 or a mower (not shown), it is possible to raise and lower the snowplow using the three-point link 8 and to transmit power using a power take-off device 32 or the like. Further, the lifting cylinder 24 may have a piston rod pivoted to the mounting body 18 and a tube pivoted to the lower link 14, contrary to the diagram, or may be a single-acting type in which lifting is done by hydraulic pressure and lowering is done by its own weight. .
本考案は車体1の前部に昇降自在に設けられる
三点リンク8において、車体側に枢着されて前方
に延設する左右一対のロワーリンク14,14の
長手方向中間部をクロスバー16で互いに連結
し、ロワーリンク14,14間の車体側にトツプ
リンク取付け体18を立設状に固定し、2又部2
8を有するトツプリンク27の該2又部28を前
記トツプリンク取付け体18の立設中間部分に枢
着するとともに、昇降シリンダ24の一端をトツ
プリンク取付け体18の上端部分に枢着23して
該昇降シリンダ24を前記2又部28内に挿通し
てトツプリンク27と昇降シリンダ24とを側面
視においてX字状に交叉し、昇降シリンダ24の
他端を前記クロスバー16のバー長さ方向中間に
枢着25して該昇降シリンダ24により三点リン
ク8を昇降自在とし、前記2又部28と昇降シリ
ンダ24との相対運動で相互に干渉しない長さと
幅を2又部28が有していることを特徴とする前
装三点リンク装置に係るものであるから次の利点
がある。 In the present invention, in a three-point link 8 that is provided at the front of the vehicle body 1 so that it can be raised and lowered, a cross bar 16 is used to connect the longitudinal intermediate portion of a pair of left and right lower links 14, 14 that are pivotally connected to the vehicle body side and extend forward. The top link attachment body 18 is fixed to the vehicle body side between the lower links 14 and 14 in an upright manner, and the bifurcated portion 2 is connected to each other.
The bifurcated portion 28 of the top link 27 having a diameter of 8 is pivotally attached to the erected middle portion of the top link attachment body 18, and one end of the lifting cylinder 24 is pivotally attached 23 to the upper end portion of the top link attachment body 18. The lifting cylinder 24 is inserted into the bifurcated portion 28 so that the top link 27 and the lifting cylinder 24 intersect in an X shape in side view, and the other end of the lifting cylinder 24 is inserted in the bar length direction of the cross bar 16. The three-point link 8 is pivoted in the middle so that it can be raised and lowered by the lifting cylinder 24, and the forked part 28 has a length and width that do not interfere with each other due to relative movement between the forked part 28 and the lifting cylinder 24. Since the present invention relates to a front-mounted three-point linkage device, it has the following advantages.
車体側に立設されているトツプリンク取付け体
18には、その立設中間部分にトツプリンク27
の2又部28が枢着29されるとともに昇降シリ
ンダ24の一端が立設上端部分に枢着23されて
いるので、トツプリンク取付け体18は2つの部
材の取付けを兼用していることとなり、部品点数
が少なく構造も簡単になる。 The top link attachment body 18, which is installed upright on the vehicle body side, has a top link 27 at the middle of the upright position.
The bifurcated portion 28 is pivotally attached 29, and one end of the lifting cylinder 24 is pivotally attached 23 to the upright upper end portion, so the top link attachment body 18 doubles as attachment of two members. The number of parts is small and the structure is simple.
トツプリンク27の2又部28と昇降シリンダ
24とは側面視においてX字状に交叉されている
ので高さ方向においてコンパクトにできるし、左
右ロワーリンク14,14をクロスバー16で互
いに連結して該バー16の長さ方向中間に昇降シ
リンダ24の他端を枢着していることから、昇降
シリンダ24の昇降力を三点リンク8の巾方向中
央部分に作用させることとなり、ここに、こじれ
のない軽快かつ確実な昇降ができる。 Since the bifurcated portion 28 of the top link 27 and the lifting cylinder 24 intersect in an X-shape in a side view, it can be made compact in the height direction. Since the other end of the lifting cylinder 24 is pivotally attached to the middle of the bar 16 in the length direction, the lifting force of the lifting cylinder 24 is applied to the widthwise center portion of the three-point link 8, and this is where the twisting occurs. You can move up and down easily and reliably without any bumps.
トツプリンク27の2又部28と昇降シリンダ
24とをX字状に交叉させても、2又部28と昇
降シリンダ24との相対運動で相互に干渉しない
長さと幅を2又部28が有しているので、2又部
28と昇降シリンダ24との相互摺接はなく軽快
な三点リンク8の昇降を約束するし、耐久性が向
上するばかりか、2又部28内に昇降シリンダ2
4が挿通されているので、2又部28で昇降シリ
ンダ24に対する側方からのプロテクタ機能をも
たせ、増々耐久性が向上する。 Even if the bifurcated portion 28 of the top link 27 and the lifting cylinder 24 intersect in an X-shape, the bifurcated portion 28 has a length and width that do not interfere with each other due to relative movement between the bifurcated portion 28 and the lifting cylinder 24. As a result, there is no mutual sliding contact between the forked part 28 and the lifting cylinder 24, and the lifting and lowering of the three-point link 8 is ensured.
4 is inserted, the bifurcated portion 28 serves as a lateral protector for the lifting cylinder 24, thereby further improving durability.
第1図は除雪機を装着した場合の本案の側面
図、第2図は同平面図、第3図は排土板を装着し
た場合の本案の側面図、第4図は同平面図であ
る。
1……車体、8……三点リンク、14……ロワ
ーリンク、16……クロスバー、18……トツプ
リンク取付け体、24……昇降シリンダ、27…
…トツプリンク、28……2又部。
Fig. 1 is a side view of the present invention when a snow blower is attached, Fig. 2 is a plan view of the same, Fig. 3 is a side view of the present invention when a soil removal plate is attached, and Fig. 4 is a plan view of the same. . DESCRIPTION OF SYMBOLS 1... Vehicle body, 8... Three-point link, 14... Lower link, 16... Cross bar, 18... Top link attachment body, 24... Lifting cylinder, 27...
...Toplink, 28...Two forks.
Claims (1)
ク8において、車体側に枢着されて前方に延設す
る左右一対のロワーリンク14,14の長手方向
中間部をクロスバー16で互いに連結し、ロワー
リンク14,14間の車体側にトツプリンク取付
け体18を立設状に固定し、2又部28を有する
トツプリンク27の該2又部28を前記トツプリ
ンク取付け体18の立設中間部分に枢着29する
とともに、昇降シリンダ24の一端をトツプリン
ク取付け体18の上端部分に枢着23して該昇降
シリンダ24を前記2又部28内に挿通してトツ
プリンク27と昇降シリンダ24とを側面視にお
いてX字状に交叉し、昇降シリンダ24の他端を
前記クロスバー16のバー長さ方向中間に枢着2
5して該昇降シリンダ24により三点リンク8を
昇降自在とし、前記2又部28と昇降シリンダ2
4との相対運動で相互に干渉しない長さと幅を2
又部28が有していることを特徴とする前装三点
リンク装置。 In a three-point link 8 which is provided at the front of the vehicle body 1 so as to be freely raised and lowered, the longitudinal intermediate portions of a pair of left and right lower links 14, 14 which are pivotally connected to the vehicle body and extend forward are connected to each other by a cross bar 16. , the top link attachment body 18 is fixed in an upright manner on the vehicle body side between the lower links 14, 14, and the forked portion 28 of the top link 27 having the forked portion 28 is fixed to the upright intermediate portion of the top link attachment body 18. At the same time, one end of the lifting cylinder 24 is pivotally connected 23 to the upper end portion of the top link mounting body 18, and the lifting cylinder 24 is inserted into the bifurcated portion 28 to connect the top link 27 and the lifting cylinder 24. intersect in an X-shape in side view, and the other end of the lifting cylinder 24 is pivotally connected to the middle of the cross bar 16 in the bar length direction.
5, the three-point link 8 can be raised and lowered by the lifting cylinder 24, and the bifurcated portion 28 and the lifting cylinder 2
The length and width that do not interfere with each other in relative motion with 4 are 2
A front-mounted three-point linkage device, characterized in that the furrow portion 28 has one.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1981031828U JPS6312203Y2 (en) | 1981-03-06 | 1981-03-06 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1981031828U JPS6312203Y2 (en) | 1981-03-06 | 1981-03-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57147360U JPS57147360U (en) | 1982-09-16 |
JPS6312203Y2 true JPS6312203Y2 (en) | 1988-04-08 |
Family
ID=29829239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1981031828U Expired JPS6312203Y2 (en) | 1981-03-06 | 1981-03-06 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6312203Y2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4980807A (en) * | 1972-12-07 | 1974-08-05 |
-
1981
- 1981-03-06 JP JP1981031828U patent/JPS6312203Y2/ja not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4980807A (en) * | 1972-12-07 | 1974-08-05 |
Also Published As
Publication number | Publication date |
---|---|
JPS57147360U (en) | 1982-09-16 |
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