JPS63245602A - Agricultural tractor - Google Patents
Agricultural tractorInfo
- Publication number
- JPS63245602A JPS63245602A JP62081682A JP8168287A JPS63245602A JP S63245602 A JPS63245602 A JP S63245602A JP 62081682 A JP62081682 A JP 62081682A JP 8168287 A JP8168287 A JP 8168287A JP S63245602 A JPS63245602 A JP S63245602A
- Authority
- JP
- Japan
- Prior art keywords
- mount
- mid
- link mechanism
- working device
- piston rod
- 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.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 claims description 31
- 230000003028 elevating effect Effects 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 210000001015 abdomen Anatomy 0.000 description 2
- 230000003187 abdominal effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Harvester Elements (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
C産業上の利用分野〕
本発明は走行機体の下腹部に昇降リンク機構を介して連
結されるモーア等のミツドマウント作業装置と走行機体
の後端に昇降リンク機構を介して連結される耕耘装置等
のリヤマウント作業装置とを取付可能な農用トラクタに
関する。[Detailed Description of the Invention] C. Industrial Application Field] The present invention relates to a mid-mount working device such as a mower that is connected to the lower abdomen of a traveling machine via a lifting link mechanism, and a mid-mounted working device such as a mower that is connected to the rear end of the traveling machine via a lifting link mechanism. The present invention relates to an agricultural tractor to which a rear-mounted working device such as a tilling device can be attached.
このように2つの作業装置を取付けることができる農用
トラクタにおいては、これら作業装置の昇降用アクチュ
エータを1つのもので兼用してコスト低減化を図るもの
があり、このような昇降用アクチュエータを兼用するも
のとして、実開昭57−141715号公報に開示され
たものがある。このものの構成は、リヤマウント昇降リ
ンク機構を構成するリフトアーム(公報番号■)を昇降
用アクチュエータ(公報番号■)に連係するとともに、
リフトアームとミツドマウント昇降リンク機構とをリン
ク(又はワイヤ)等の連係機構(公報番号0)で連係し
て、昇降用アクチュエータの兼用化を図っていた。Some agricultural tractors to which two working devices can be attached are designed to reduce costs by using a single lifting actuator for these working devices. One such method is disclosed in Japanese Utility Model Application Publication No. 57-141715. The configuration of this device is that the lift arm (publication number ■) that constitutes the rear mount lifting link mechanism is linked to the lifting actuator (publication number ■), and
The lift arm and the mid-mount elevating link mechanism were linked by a linkage mechanism (publication number 0) such as a link (or wire) to serve as an elevating actuator.
したがって、走行機体後端から下腹部位置まで前記連係
機構を延設しなければならず、設置スペース及びその設
置位置を後車輪や後車軸との干渉を回避しながら見出さ
ねばならず、設計負担が大になるとともに、連係リンク
自体が必要になるところから部品点数が増えることにな
っていた。Therefore, it is necessary to extend the linkage mechanism from the rear end of the traveling aircraft to the lower abdomen position, and the installation space and location must be found while avoiding interference with the rear wheels and rear axle, which increases the design burden. As the size increased, the number of parts increased as the link itself became necessary.
本発明の目的は昇降用アクチュエータとじての油圧シリ
ンダと両昇降リンク機構との合理的連係によって、従来
構造の問題点を解消できるものをより取扱性を向上させ
たものとして提供する点にある。An object of the present invention is to provide a hydraulic cylinder serving as a lifting actuator and both lifting link mechanisms that can be rationally linked to each other, thereby solving the problems of the conventional structure and with improved handling properties.
本発明による特徴構成は、ミツドマウント作業装置とリ
ヤマウント作業装置とを、昇降可能に連結するミツドマ
ウント昇降リンク機構とリヤマウント昇降リンク機構と
を、夫々、単一の両ロンド型シリンダの各ピストンロッ
ドに夫々直接連係してある点にあり、その作用効果は次
の通りである。The characteristic configuration according to the present invention is that a mid-mount lifting link mechanism and a rear-mount lifting link mechanism, which connect the mid-mount working device and the rear-mount working device so as to be able to rise and fall, are connected to each piston rod of a single double-rod type cylinder, respectively. They are directly linked to each other, and their effects are as follows.
つまり、ミツドマウント作業装置とリヤマウント作業装
置とが相前後して配置されている点に着目して、両ロン
ド型のシリンダを設けることによって、夫々のピストン
ロッドに両昇降リンク機構を各別に直結することができ
、ピストンロッドの作動方向を切換えるだけで作業装置
の昇降が行える。したがって、従来のように、両昇降リ
ンク機構を連係する機構が必要でなくなる。In other words, by focusing on the fact that the mid-mount work device and the rear-mount work device are arranged one after the other, by providing both rondo-type cylinders, both lifting link mechanisms are directly connected to the respective piston rods. The working device can be raised and lowered simply by switching the operating direction of the piston rod. Therefore, there is no need for a mechanism for linking both lifting link mechanisms as in the conventional case.
シリンダのピストンロッドに、従来の連係機構に相当す
る機能を持たせることができ、実質的に連係機構を省略
でき、この連係機構の配置構成を設定する設計上の負担
が軽減できるとともに、部品点数も削減できる。The piston rod of the cylinder can have a function equivalent to a conventional linkage mechanism, and the linkage mechanism can be essentially omitted, reducing the design burden of configuring the arrangement of this linkage mechanism, and reducing the number of parts. can also be reduced.
但し、同様な効果を奏するものとして、ミツドマウント
昇降リンク機構をピストンロッドに連係し、かつ、リヤ
マウント昇降リンク機構をシリンダケースに連係する構
成もとれるが、この場合にはピストンロッド又はシリン
ダケース何れか一方を相対的に固定しなければ、昇降さ
“せることかできないシリンダとしての機能上の特性が
ある為に、固定機構が不可欠であるが、本発明の場合に
は、通常の注油方向の切換を行うだけであるから、固定
機構を必要としない分だけ構造を簡単にできる。However, to achieve the same effect, it is also possible to link the mid-mount elevating link mechanism to the piston rod and the rear-mount elevating link mechanism to the cylinder case, but in this case, either the piston rod or the cylinder case is connected. A fixing mechanism is essential because the cylinder has a functional characteristic that it cannot be raised or lowered unless one side is fixed relative to the other. Since a fixing mechanism is not required, the structure can be simplified.
第1図及び第2図に示すように、農用トラクタは、走行
機体(1)の前部にエンジン(2)、後部にミッション
ケース(3)を配するとともに、ミッションケース(3
)後端にリヤPTO軸(4)及びフロント伝動ケース下
端にミツドPTO軸(5)を設けて、トラクタ後端に3
点リンク式のリヤマウント昇降リンク機構(6)を介し
て耕耘装置等のリヤマウント作業装置(7)を取付可能
に、かつ、前後車輪(8) 、 (9)に囲まれた下腹
部空間にミツドマウント昇降リンク機構(10)を介し
てモーア等のミツドマウント作業装置(11)を取付可
能に構成してある。As shown in Figures 1 and 2, an agricultural tractor has an engine (2) at the front of a traveling body (1), a transmission case (3) at the rear, and a transmission case (3).
) A rear PTO shaft (4) is provided at the rear end and a mid PTO shaft (5) is provided at the lower end of the front transmission case.
A rear mount working device (7) such as a tiller can be attached via a point link type rear mount elevating link mechanism (6), and it is located in the lower abdominal space surrounded by the front and rear wheels (8) and (9). A mid-mount working device (11) such as a mower can be attached via a mid-mount elevating link mechanism (10).
ミッションケース(3)の横側面に一体的に油圧シリン
ダ(12)が形成され、この油圧シリンダ(12)のシ
リンダケース(14)から前後に突出するピストンロッ
ド(13A) 、 (13B)にミツドマウント昇降リ
ンク機構(10)とリヤマウント昇降リンク機構(6)
とが夫々直接連係される構成になっている。つまり、第
1図に示すように、前ピストンロッド(13A)に連係
部材(15)を固着するとともに、ミツドマウント作業
装置(11)としてのモーアを走行機体(1)に連係す
るリンク機構(10)としての連係ロンド(16)を架
設し、前記連係部材(15)を連係ロンドにビン連係し
て、ミツドマウント作業装置(11)の昇降構造を構成
してある。A hydraulic cylinder (12) is integrally formed on the side surface of the transmission case (3), and piston rods (13A) and (13B) that protrude back and forth from the cylinder case (14) of this hydraulic cylinder (12) have mid-mounts for lifting and lowering. Link mechanism (10) and rear mount elevating link mechanism (6)
The configuration is such that these are directly linked to each other. That is, as shown in FIG. 1, a linking member (15) is fixed to the front piston rod (13A), and a link mechanism (10) linking a mower serving as a mid-mount working device (11) to the traveling body (1). A linking rond (16) is installed, and the linking member (15) is connected to the linking rond to form an elevating structure for the mid-mount working device (11).
一方、第2図に示すように、ミッションケース(3)後
端には3点リンク式のリヤマウント昇降リンク機構(6
)が連結され、このリヤマウント昇降リンク機構(6)
を構成する左右一対のリフトアーム(17)が枢支され
るとともに、このリンク機構(6)を介して耕耘装置等
のリヤマウント作業装置(7)が取付けられている。こ
れらミツドマウント作業装置(7)とリヤマウント作業
袋!(11)とは作業形態に即して選択して取付けられ
る。このリフトアーム(17)の揺動始点部位にはリフ
トアーム(17)と一体で回動するビニオン(18)が
軸支されるとともに、後ピストンロッド(13B)の先
端部にラック(19)が形成されている。On the other hand, as shown in Figure 2, the rear end of the mission case (3) is equipped with a three-point link type rear mount elevating link mechanism (6
) are connected, and this rear mount elevating link mechanism (6)
A pair of left and right lift arms (17) constituting this are pivotally supported, and a rear mount working device (7) such as a tiller is attached via this link mechanism (6). These mid-mount work equipment (7) and rear-mount work bag! (11) is selected and installed according to the work type. A binion (18) that rotates together with the lift arm (17) is pivotally supported at the swing start point of the lift arm (17), and a rack (19) is attached to the tip of the rear piston rod (13B). It is formed.
このピニオン(18)とラック(19)との係合作用に
よって、後ピストンロッド(13B)を作動させること
によって、リフトアーム(17)を昇降作動させること
ができる。この場合のリフトアーム(17)の作動方向
は後ピストンロッド(13B)の伸張作動によって下方
に揺動する方向である。The engagement between the pinion (18) and the rack (19) allows the lift arm (17) to be moved up and down by operating the rear piston rod (13B). In this case, the operating direction of the lift arm (17) is the direction in which the lift arm (17) swings downward due to the extension action of the rear piston rod (13B).
(前記ランク(19)とピニオン(18)との間に更に
中間ギヤを介在させれば、リフトアーム(17)の作動
方向を反対にできる)。(If an intermediate gear is further interposed between the rank (19) and the pinion (18), the operating direction of the lift arm (17) can be reversed).
C別実施例〕
■ リフトアーム(17)と後ピストンロッド(13B
)との連係構造としてはピンを介して連係する・構造で
もよい。Example by C] ■ Lift arm (17) and rear piston rod (13B
) may be linked via a pin.
◎ ミツドマウント作業装置(11)としてモーア、リ
ヤマウント作業装置(7)として耕耘装置を取付ける以
外に、リヤマウント作業装置(7)としてモーアを取付
け、2台のモーアで作業を行う形態を採ることもできる
。◎ In addition to installing a mower as the mid-mount work device (11) and a tilling device as the rear-mount work device (7), it is also possible to install a mower as the rear-mount work device (7) and perform work with two mowers. can.
尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.
図面は本発明に係る農用トラクタの実施例を示し、第1
図はミツドマウント作業装置を連係した状態を示す全体
側面図、第2図はリヤマウント作業装置を連係した状態
を示す全体側面図である。
(1)・・・・・・走行機体、(6)・・・・・・リヤ
マウント昇降リンク機構、(7)・・・・・・リヤマウ
ント作業装置、(10)・・・・・・ミツドマウント昇
降リンク機構、(11)・・・・・・ミツドマウント作
業装置、(12)・・・・・・複動シリンダ、(13A
)、(13B)・・・・・・ピストンロッド。The drawings show an embodiment of the agricultural tractor according to the present invention.
The figure is an overall side view showing the state in which the mid-mount working device is linked, and FIG. 2 is the overall side view showing the state in which the rear-mount working device is linked. (1)...... Traveling body, (6)... Rear mount lifting link mechanism, (7)... Rear mount working device, (10)... Mid-mount lifting link mechanism, (11)...Mid-mount working device, (12)...Double acting cylinder, (13A
), (13B)...Piston rod.
Claims (1)
置(7)とを、昇降可能に連結するミッドマウント昇降
リンク機構(10)とリヤマウント昇降リンク機構(6
)とを、夫々、単一の両ロッド型シリンダ(12)の各
ピストンロッド(13A)、(13B)に夫々直接連係
してある農用トラクタ。A mid-mount lifting link mechanism (10) and a rear-mount lifting link mechanism (6) connect the mid-mount working device (11) and the rear-mount working device (7) so that they can rise and fall.
) are directly connected to respective piston rods (13A) and (13B) of a single double-rod type cylinder (12), respectively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62081682A JPS63245602A (en) | 1987-04-01 | 1987-04-01 | Agricultural tractor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62081682A JPS63245602A (en) | 1987-04-01 | 1987-04-01 | Agricultural tractor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63245602A true JPS63245602A (en) | 1988-10-12 |
JPH0588081B2 JPH0588081B2 (en) | 1993-12-21 |
Family
ID=13753125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62081682A Granted JPS63245602A (en) | 1987-04-01 | 1987-04-01 | Agricultural tractor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63245602A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02135021A (en) * | 1988-11-17 | 1990-05-23 | Kubota Ltd | Lift driving structure for mower |
-
1987
- 1987-04-01 JP JP62081682A patent/JPS63245602A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02135021A (en) * | 1988-11-17 | 1990-05-23 | Kubota Ltd | Lift driving structure for mower |
Also Published As
Publication number | Publication date |
---|---|
JPH0588081B2 (en) | 1993-12-21 |
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