JPH0446489Y2 - - Google Patents
Info
- Publication number
- JPH0446489Y2 JPH0446489Y2 JP12365886U JP12365886U JPH0446489Y2 JP H0446489 Y2 JPH0446489 Y2 JP H0446489Y2 JP 12365886 U JP12365886 U JP 12365886U JP 12365886 U JP12365886 U JP 12365886U JP H0446489 Y2 JPH0446489 Y2 JP H0446489Y2
- Authority
- JP
- Japan
- Prior art keywords
- sheet metal
- lower link
- metal portion
- link
- pair
- 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
- 239000002184 metal Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 230000007935 neutral effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Agricultural Machines (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、走行機体に作業装置を昇降自在に連
結するロワーリンクに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lower link that connects a working device to a traveling machine body so as to be able to move up and down.
従来、ロワーリンクは１本物の中実鉄製杆で作
成されていて、必要強度の確保のために重くなつ
ており、走行機体に対する着脱や、作業装置の連
結及び分離を行う等に際しての取扱いが重量面か
ら困難になつていた。
Conventionally, the lower link has been made from a single solid iron rod, which is heavy to ensure the necessary strength, making it difficult to handle when attaching and detaching from the traveling aircraft, connecting and separating working equipment, etc. It was becoming very difficult.
本考案の目的は軽量なロワーリンクを提供する
ことにある。 The purpose of the present invention is to provide a lightweight lower link.
〔問題点を解決するための手段〕
本考案の特徴構成は、冒記したロワーリンクに
おいてロワーリンクの厚み方向に並列する一対の
第１板金部分と、これら第１板金部分を連結する
第２板金部分とから成るように横断面コの字状の
屈曲板金で成り、リフトアームとの連結部材の連
結箇所を、ロワーリンクの断面二次モーメントの
中立軸と合致する箇所またはその付近に配置した
点にあり、その作用及び効果は次の通りである。[Means for Solving the Problems] The characteristic configuration of the present invention is that the above-mentioned lower link includes a pair of first sheet metal portions that are parallel to each other in the thickness direction of the lower link, and a second sheet metal portion that connects these first sheet metal portions. It is made of bent sheet metal with a U-shaped cross section, and the connection point of the connection member with the lift arm is located at or near a point that coincides with the neutral axis of the second moment of area of the lower link. Its functions and effects are as follows.
すなわち、屈曲板金で作成することにより、従
来の中実杆製より軽量なものにしながら、曲げに
対する強度を所望通り確保することができる。し
かも、第３図に示すように、リフトアーム６とロ
ワーリンク５の連結部材７の連結箇所１０を前記
中立軸Ｚに合致する箇所あるいはその付近に配置
することによつて、第５図に示すように、第１板
金部分５Ａの上下長さの1/2に相当する箇所を連
結箇所１０，１０に設定する場合すなわち前記間
隔ａと前記間隔ｂとを等しくするに比して第１板
金部分５Ａの上下長さを、短かくしても、上向き
及び下向きのいずれの曲げに対する強度をも所望
どおり確保できる。
That is, by making it from a bent sheet metal, it is possible to ensure the desired strength against bending while making it lighter than the conventional solid rod. Moreover, as shown in FIG. 3, by arranging the connection point 10 of the connection member 7 between the lift arm 6 and the lower link 5 at or near a point that coincides with the neutral axis Z, as shown in FIG. As shown in FIG. Even if the vertical length of 5A is shortened, the strength against both upward and downward bending can be ensured as desired.
屈曲板金製にすることと、連結箇所の合理設置
との両方により、軽量化を達成でき、取扱いが容
易にできて、運搬、走行機体に対する着脱あるい
は作業装置の連結や分離の作業を能率よくできる
ものにできた。
By making it made of bent sheet metal and rationally installing the connection points, it is lightweight, easy to handle, and efficient for transportation, attachment and detachment from the traveling vehicle, and connection and separation of work equipment. I was able to make it into something.
第４図に示すように、走行機体を形成するミツ
シヨンケース１の後部に、油圧シリンダ２によつ
て上下に揺動操作されるリンク機構３を介して昇
降されるようにロータリ耕耘装置４を連結すると
共に、走行機体から前記耕耘装置４に回動力が伝
達されるように構成して、乗用型耕耘機を構成し
てある。
As shown in FIG. 4, a rotary tiller 4 is installed at the rear of a transmission case 1 forming a traveling machine body so as to be raised and lowered via a link mechanism 3 which is operated to swing up and down by a hydraulic cylinder 2. A riding type cultivator is constructed by connecting them and transmitting rotational force from the traveling machine body to the cultivating device 4.
前記リンク機構３を構成するに、前記ミツシヨ
ンケース１とロータリ耕耘装置４を左右一対のロ
ワーリンク５，５により連結し、これらロワーリ
ンク５，５の一方と、ミツシヨンケース１に前記
油圧シリンダ２によつて揺動操作されるように取
付けてある左右一対のリフトアーム６，６の一方
とを、かつ、他方のロワーリンク５と他方のリフ
トアーム６とを夫々連結部材ととしてのリフトロ
ツド７により連結し、ミツシヨンケース１及びロ
ータリ耕耘装置４に対する横揺動を許容するよう
ロワーリンク５に付設してある球面式継手８ａ及
び８ｂに起因するロータリ耕耘装置４の横揺動を
防止するように、一対のロワーリンク５，５夫々
とミツシヨンケース１とにわたり、ロワーリンク
５のミツシヨンケース１に対する機体内側への横
揺動を規制するチエーン式規制部材９を取付けて
ある。 To configure the link mechanism 3, the transmission case 1 and the rotary tilling device 4 are connected by a pair of left and right lower links 5, 5, and one of these lower links 5, 5 and the transmission case 1 are connected to the hydraulic cylinder. A lift rod 7 serves as a connecting member to connect one of a pair of left and right lift arms 6, 6, which are attached so as to be swingably operated by a lower link 5, and to connect the other lower link 5 and the other lift arm 6, respectively. to prevent horizontal swing of the rotary tiller 4 due to spherical joints 8a and 8b attached to the lower link 5 to allow lateral swing with respect to the transmission case 1 and the rotary tiller 4. A chain-type regulating member 9 is attached over the pair of lower links 5, 5 and the transmission case 1 to regulate the horizontal swing of the lower link 5 toward the inside of the machine body with respect to the transmission case 1.
一対の前記ロワーリンク５，５の夫々は、第１
図及び第２図に示すように、ロワーリンク５の厚
み方向に並列する一対の第１板金部分５Ａ，５Ａ
と、これら第１板金部分５Ａ，５Ａを連結する第
２板金部分５Ｂとから成る横断面コの字状の屈曲
板金で構成されている。 Each of the pair of lower links 5, 5 has a first
As shown in the figure and FIG. 2, a pair of first sheet metal parts 5A, 5A parallel to each other in the thickness direction of the lower link 5.
and a second sheet metal portion 5B that connects the first sheet metal portions 5A, 5A.
前記第１板金部分５Ａ，５Ａ夫々に前記リフト
ロツド７と前記ロワーリンク５との連結箇所とし
ての一対の連結孔１０，１０を形成してある。そ
して、第３図に示すように、前記連結孔１０の連
結孔１０と、前記第１板金部分５Ａの上端との間
隔ａが、前記連結孔１０と、前記第１板金５Ａの
下端との間隔ｂより小になる（ａ＜ｂ）ように、
連結孔１０を配置してあり、すなわち、ロワーリ
ンク５の断面二次モーメントの中立軸Ｚに合致す
る箇所に連結孔１０を配置してあり、ロワーリン
ク５の軽量化を図つてある。尚、前記連結孔１
０，１０は、前後２箇所に設けられており、それ
らを選択することによりロワーリンクの初期設定
姿勢が変更できるようにしてある。 A pair of connecting holes 10, 10 are formed in the first sheet metal parts 5A, 5A, respectively, as connecting points for the lift rod 7 and the lower link 5. As shown in FIG. 3, a distance a between the connecting hole 10 and the upper end of the first sheet metal portion 5A is a distance a between the connecting hole 10 and the lower end of the first sheet metal portion 5A. so that it is smaller than b (a<b),
The connecting hole 10 is arranged, that is, the connecting hole 10 is arranged at a location that coincides with the neutral axis Z of the moment of inertia of the lower link 5, thereby reducing the weight of the lower link 5. In addition, the connection hole 1
0 and 10 are provided at two locations, front and rear, and by selecting them, the initial setting posture of the lower link can be changed.
尚、第１図及び第２図に示す１１は、前記規制
部材９に対する連結孔である。 Incidentally, reference numeral 11 shown in FIGS. 1 and 2 is a connecting hole for the regulating member 9.
前記実施例では、第２板金部分５Ｂが第１板金
部分５Ａの上端側に在るようにしたが、第２板金
部分５Ｂが第１板金部分５Ａの下端側に在るよう
にしてもよい。
In the embodiment described above, the second sheet metal portion 5B is located at the upper end of the first sheet metal portion 5A, but the second sheet metal portion 5B may be located at the lower end of the first sheet metal portion 5A.
又、前記実施例では、連結孔１０を前後２箇所
に設けたが、１箇所あるいは３箇所以上設けても
よい。また、前記中立軸Ｚの付近に配置してもよ
い。 Further, in the above embodiment, the connecting holes 10 are provided at two locations, front and rear, but they may be provided at one location or three or more locations. Further, it may be arranged near the neutral axis Z.
本考案は、田植機やトレンチヤー等のロータリ
耕耘装置以外の各種装置を連結するものにも適用
でき、ロータリ耕耘装置４を作業装置４と総称す
る。 The present invention can also be applied to devices that connect various devices other than the rotary tilling device, such as a rice transplanter or a trencher, and the rotary tilling device 4 is collectively referred to as a working device 4.
図面は本考案に係るロワーリンクの実施例を示
し、第１図はロワーリンクの縦断側面図、第２図
はロワーリンクの横断平面図、第３図はロワーリ
ンクの縦断正面図、第４図は乗用型耕耘機後部の
斜視図である。第５図はロワーリンクの比較例を
示す縦断正面図である。
４……作業装置、５……ロワーリンク、５Ａ…
…第１板金部分、５Ｂ……第２板金部分、６……
リフトアーム、７……連結部材、１０……連結箇
所、ａ，ｂ……間隔、Ｚ……中立軸。
The drawings show an embodiment of the lower link according to the present invention, FIG. 1 is a longitudinal side view of the lower link, FIG. 2 is a transverse plan view of the lower link, FIG. 3 is a longitudinal front view of the lower link, and FIG. 4 is a longitudinal sectional side view of the lower link. is a perspective view of the rear part of the riding-type tiller. FIG. 5 is a longitudinal sectional front view showing a comparative example of a lower link. 4... Working device, 5... Lower link, 5A...
...First sheet metal part, 5B...Second sheet metal part, 6...
Lift arm, 7... Connection member, 10... Connection location, a, b... Spacing, Z... Neutral axis.
Claims (1)
ロワーリンクであつて、ロワーリンク５の厚み
方向に並列する一対の第１板金部分５Ａ，５Ａ
と、これら第１板金部分５Ａ，５Ａを連結する
第２板金部分５Ｂとから成るように横断面コの
字状の屈曲板金で成り、リフトアーム６との連
結部材７の連結箇所１０を、ロワーリンク５の
断面二次モーメントの中立軸Ｚと合致する箇所
またはその付近に配置してあるロワーリンク。 前記第２板金部分５Ｂが前記第１板金部分５
Ａの上端側に在る実用新案登録請求の範囲第
項に記載のロワーリンク。[Scope of Claim for Utility Model Registration] A pair of first sheet metal parts 5A, 5A that are parallel to each other in the thickness direction of the lower link 5, which is a lower link that connects the working device 4 to the traveling machine body so as to be able to move up and down.
and a second sheet metal portion 5B that connects the first sheet metal portions 5A, 5A. The lower link is placed at or near a location that matches the neutral axis Z of the moment of inertia of the link 5. The second sheet metal portion 5B is the first sheet metal portion 5.
The lower link as stated in the scope of the utility model registration claim, which is located on the upper end side of A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12365886U JPH0446489Y2 (en) | 1986-08-12 | 1986-08-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12365886U JPH0446489Y2 (en) | 1986-08-12 | 1986-08-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6331706U JPS6331706U (en) | 1988-03-01 |
| JPH0446489Y2 true JPH0446489Y2 (en) | 1992-11-02 |
Family
ID=31014956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12365886U Expired JPH0446489Y2 (en) | 1986-08-12 | 1986-08-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0446489Y2 (en) |
-
1986
- 1986-08-12 JP JP12365886U patent/JPH0446489Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6331706U (en) | 1988-03-01 |
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