JPS6248304A - Working apparatus hitch structure of working vehicle - Google Patents
Working apparatus hitch structure of working vehicleInfo
- Publication number
- JPS6248304A JPS6248304A JP60190157A JP19015785A JPS6248304A JP S6248304 A JPS6248304 A JP S6248304A JP 60190157 A JP60190157 A JP 60190157A JP 19015785 A JP19015785 A JP 19015785A JP S6248304 A JPS6248304 A JP S6248304A
- Authority
- JP
- Japan
- Prior art keywords
- working
- working device
- vehicle body
- mounting frame
- link
- 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
Landscapes
- Agricultural Machines (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】
〔産業上の利用分野〕
本発明は、作業車において、作業装置を車体後部に駆動
昇降自在に連結する作業装置連結構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a working device connection structure for connecting a working device to the rear of a vehicle body in a manner that it can be driven up and down.
かかる連結構造として、従来一般に、第５図に示すよう
に、トラクタ（５１）の後部に、左右一対のロアリンク
（５２）とトップリンク（５３）とからなる３点すンク
装ｙｔ （５４）を昇降自在に連結し、油圧シリンダ（
５５）にて昇降操作される左右一対のリフトアーム（５
６）を、トラクタ後部に設けると共に、それらリフトア
ーム（５６）と左右ロアリンク（５２）とをリフトロッ
ド（５７）にて連結して、３点リンク装置（５４）の後
部に、耕耘装置（５日）等の作業装置を連結する構造が
保用されている。As shown in FIG. 5, conventionally, as such a connection structure, a three-point link system (54) consisting of a pair of left and right lower links (52) and a top link (53) is installed at the rear of a tractor (51). The hydraulic cylinder (
A pair of left and right lift arms (55) are operated to raise and lower
6) is installed at the rear of the tractor, the lift arms (56) and the left and right lower links (52) are connected by a lift rod (57), and a tilling device (54) is installed at the rear of the three-point linkage (54). The structure for connecting working equipment such as 5th day) is maintained.
上記従来の作業装置連結構造によると、作業装置を車体
に対して吊上げ支持するものであるため、車体の強度を
作業装置の支持荷重にも耐えるように充分に高く設定す
る必要があり、しかも、作業装置を地面から浮上させた
状態に支持する場合においても、車体の前後バランスを
良好に保つために、バランスウェイトを車体前部に取付
けねばならず、それらの結果、車体の構成が複雑になる
と共に、車体の重量が大になる不都合があった。According to the conventional work equipment connection structure described above, since the work equipment is suspended and supported from the vehicle body, the strength of the vehicle body must be set sufficiently high to withstand the support load of the work equipment. Even when supporting the work equipment in a state where it is lifted off the ground, a balance weight must be attached to the front of the vehicle body in order to maintain good front-to-back balance of the vehicle body, resulting in a complex structure of the vehicle body. At the same time, there was an inconvenience that the weight of the vehicle body became large.
又、かかる作業車においては、路上走行時や枕地におい
て作業装置を上昇させる際には、作業装置の上昇量を極
力少なくしながらも作業装置を極力車体側に近付けるよ
うにして、作業装置上昇時における上下高さ及び前後長
さを小さくすることが望まれるものとなる。ちなみに、
上記従来構造の場合、トップリンクの長さをロアリンク
の長さよりも短くして、作業装置を上昇させるほど車体
側に近付くように構成することが行われている。In addition, in such a work vehicle, when raising the work equipment while driving on the road or on a headland, the work equipment should be raised as close to the vehicle body as possible while minimizing the amount of rise of the work equipment. It is desirable to reduce the vertical height and longitudinal length at the same time. By the way,
In the case of the above conventional structure, the length of the top link is made shorter than the length of the lower link, so that the higher the working device is, the closer it gets to the vehicle body.
本発明は、上記実状に鑑みて為されたものであって、そ
の目的は、作業装置の重量が車体に作用することを抑制
しながら作業装置を昇降でき、しかも、作業装置の上昇
量を少なくしながらも作業装置を車体側に充分に近付け
るように作業装置を上昇させることができる作業連結構
造を提供する点にある。The present invention has been made in view of the above-mentioned circumstances, and its purpose is to enable the working device to be raised and lowered while suppressing the weight of the working device from acting on the vehicle body, and to reduce the amount of rise of the working device. However, it is an object of the present invention to provide a working connection structure that can raise the working device so as to bring the working device sufficiently close to the vehicle body.
本発明による作業車の作業装置連結構造の特徴構成は、
車体後部に、作業装置連結用の上下のリンクを昇降自在
に連結し、それらリンクのうちの下方側のリンクに、接
地輪を取付け、且つ、上方側のリンクに、作業装置取付
枠を取付け、前記作業装置取付枠を、前記接地輪に対し
て昇降自在に取付け、前記作業装置取付枠を前記接地輪
に対して駆動昇降操作する駆動装置を設けた点にあり、
その作用及び効果は次の通りである。The characteristic configuration of the working device connection structure for a working vehicle according to the present invention is as follows:
Upper and lower links for connecting working equipment are connected to the rear of the vehicle body so as to be able to rise and lower, a grounding wheel is attached to the lower link of the links, and a working equipment mounting frame is attached to the upper link, The working device mounting frame is attached to the grounding wheel so as to be able to rise and fall freely, and a drive device is provided for driving the working device mounting frame to move up and down with respect to the grounding wheel,
Its action and effects are as follows.
すなわち、作業装置取付枠に取付けられた作業装置を、
作業装置取付枠を接地輪に対して昇降させるに伴い昇降
させるようにするのであり、そして、作業装置の重量が
接地輪にて支持されることになる。In other words, the work equipment attached to the work equipment mounting frame,
The working device mounting frame is raised and lowered as it is raised and lowered relative to the grounding wheel, and the weight of the working device is supported by the grounding wheel.
しかも、下方側のリンクが接地輪に取付けられ、上方側
のリンクが作業装置取付枠に取付けられているが故に、
接地輪に対して作業装置取付枠を上昇させるに伴い、作
業装置取付枠が上方側はど車体側に近付くように傾斜さ
れることになり、その結果、作業装置が上昇に伴って効
率良く車体側に近付くことになる。Moreover, because the lower link is attached to the grounding ring and the upper link is attached to the work equipment mounting frame,
As the work equipment mounting frame is raised relative to the ground contact wheel, the work equipment mounting frame is tilted so that the upper side approaches the vehicle body. You will get closer to the side.
従って、作業装置の重量を接地輪にて支持させながら、
作業装置を昇降自在に連結できるので、作業装置連結の
ために車体の強度を高めるにしても、従来の如く車体そ
のものにて作業装置を吊上げ支持させるに較べて、車体
の強度を小さく済ませることができ、しかも、従来の如
くバランスウェイトを設けることなしに、車体の前後バ
ランスの安定化を図ることができるのであり、全体とし
て、車体の構成の簡素化と車体重量の軽減化とを図れる
のである。Therefore, while supporting the weight of the work equipment with the grounding wheel,
Since the work equipment can be connected in a vertically movable manner, even if the strength of the car body is increased to connect the work equipment, the strength of the car body can be reduced compared to the conventional method in which the work equipment is lifted and supported by the car body itself. Moreover, it is possible to stabilize the front-rear balance of the car body without providing balance weights as in the past, and the overall structure of the car body can be simplified and the weight of the car can be reduced. .
そのうえ、本発明によれば、作業装置取付枠を上昇させ
るに伴い上方側はど車体側に近付くように傾斜させて、
作業装置を上昇に伴って車体側に近付けるようにするの
で、作業装置上昇量を少なくしながらも作業装置を車体
側に充分に近付けることができるのであり、作業装置を
上昇させた状態において、上下高さや前後長さを極力小
さくできるのである。Moreover, according to the present invention, as the working device mounting frame is raised, the upper side is tilted closer to the vehicle body,
Since the work equipment is brought closer to the vehicle body as it rises, the work equipment can be brought sufficiently close to the vehicle body while reducing the amount of work equipment rise. This allows the height and front-to-back length to be made as small as possible.
もって、作業装置の連結に際して望まれる種々の要望を
一挙に満足させた、実用上の利点大な作業車の作業装置
連結構造を得るに至った。As a result, we have achieved a working device connection structure for a working vehicle that satisfies various demands when connecting working devices and has great practical advantages.
以下、本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.
第１図に示すように、左右一対の前輪（１）、左右一対
の後輪（２）、運転席（３）等を備えた乗用車体（Ａ）
の後部に、作業装置の一例としてのロークリ耕耘装置（
Ｂ）を駆動昇降自在に連結して、耕耘用の作業車を構成
しである。As shown in Fig. 1, a passenger vehicle body (A) includes a pair of left and right front wheels (1), a pair of left and right rear wheels (2), a driver's seat (3), etc.
At the rear of the machine, there is a rotary tiller (as an example of working equipment).
B) are connected to each other so that they can be driven up and down to form a working vehicle for tillage.
但し、図中、（５）は、車体（Ａ）の後部に設けた動力
取出軸（６）と耕耘装置（Ｂ）の入力軸（７）とを連動
連結する自在継手付の伝動軸である。However, in the figure, (5) is a transmission shaft with a universal joint that interlocks and connects the power take-off shaft (6) provided at the rear of the vehicle body (A) and the input shaft (7) of the tilling device (B). .
次に、作業装置連結構造について詳述する。Next, the working device connection structure will be described in detail.
第１図乃至第３図に示すように、乗用車体（＾）の後端
に、リンク機構連結枠（８）をボルト連結し、下方側の
左右一対のロアリンク（９）と上方側の一本のターンバ
ック機構付トップリンク（１０）とからなるリンク機構
（Ｃ）を、前記リンク機構連結枠（８）に取付けである
。つまり、ロアリンク（９）の車体側端部に、球継手式
連結部（９ａ）を備えさせ、その連結部（９ａ）を、リ
ンク機構連結枠（８）に付設の枢支ピン（１１）に、外
嵌着しである。又、トップリンク（１０）の車体側端部
に、球継手式連結部（１０ａ）を備えさせ、その連結部
（１０ａ）を、リンク機構連結枠（８）に付設の左右一
対の舌片（１２）に、貫通装着される連結ピン（１３）
を用いて取付けである。但し、図中、（１４）は、ロア
リンク（９）の横振れ阻止用のターンバックル機構付の
リンクである。又、前記ロアリンク（９）及びトップリ
ンク（１０）夫々の作業装置側端部にも、球継手式連結
部（９ａ） 、 （１０ａ）を備えさせである。As shown in Figures 1 to 3, a link mechanism connection frame (8) is bolted to the rear end of the passenger vehicle body (^), and a pair of left and right lower links (9) on the lower side and one pair on the upper side are connected by bolts. A link mechanism (C) consisting of a top link with a book turnback mechanism (10) is attached to the link mechanism connection frame (8). That is, the lower link (9) is provided with a ball joint type connecting portion (9a) at the end on the vehicle body side, and the connecting portion (9a) is connected to the pivot pin (11) attached to the link mechanism connecting frame (8). It is fitted externally. Further, the top link (10) is provided with a ball joint type connecting portion (10a) at the end on the vehicle body side, and the connecting portion (10a) is connected to a pair of left and right tongue pieces ( 12), a connecting pin (13) that is inserted through the
It is installed using. However, in the figure, (14) is a link with a turnbuckle mechanism for preventing lateral vibration of the lower link (9). Further, ball joint type connecting portions (9a) and (10a) are also provided at the end portions of the lower link (9) and the top link (10) on the side of the working device.
そして、ロアリンク（９） 、 （９）の夫々に、キャ
スタ一式の接地輪（１５）を取付け、トップリンク（１
０）に、作業装置取付枠（Ｄ）を取付けると共に、その
作業装置取付枠ＣＤ）を、昇降自在に、且つ、駆動装置
としての油圧シリンダ（１６）にて駆動昇降される状態
で、接地輪（１５）に対して取付けてあり、もって、油
圧シリンダ（１６）にて作業装置取付枠（Ｄ）を接地輪
（１５）に対して昇降させるに伴い、作業装置取付枠（
Ｄ）に取付けた耕耘装置（Ｂ）を車体（Ａ）に対して昇
降させるように構成しである。Then, attach the ground wheels (15) of a set of casters to each of the lower links (9) and (9), and
0), the working equipment mounting frame (D) is attached to the ground wheel, and the working equipment mounting frame CD) is raised and lowered freely and is driven up and down by the hydraulic cylinder (16) as a drive device. (15), and as the hydraulic cylinder (16) raises and lowers the working equipment mounting frame (D) with respect to the grounding wheel (15), the working equipment mounting frame (D)
The tilling device (B) attached to the vehicle body (D) is moved up and down with respect to the vehicle body (A).
前記作業装置取付枠（Ｄ）について説明すれば、前後方
向視形状逆Ｕの字状のメインフレーム（１７）を設け、
そのメインフレーム（１７）の両端部夫々に、前後方向
視形状がコの字状の中間フレーム（１８）を溶接して設
け、それら中間フレーム（１８）の夫々に、前記油圧シ
リンダ（１６）のシリンダチューブ（１６Ａ）をボルト
接続しである。そして、前記トップリンク（１０）の作
業装置側端部の連結部（１０ａ）が外嵌着される支持ピ
ン（１９）の連結用の左右一対の舌片（２０） 、 （
２０）を、メインフレーム（１７）に溶接しである。さ
らに、作業装置連結用の左右一対のコの字状フレーム（
２１）を、中ｒＪＩフレーム（１８）及びメインフレー
ム（１７）に溶接のスペーサー用枠体（２２）の夫々に
対して溶接して設けてある。To explain the working device mounting frame (D), a main frame (17) having an inverted U-shape when viewed from the front and back is provided;
Intermediate frames (18) having a U-shaped shape when viewed in the front and rear direction are welded to each end of the main frame (17), and each of the intermediate frames (18) is provided with one of the hydraulic cylinders (16). The cylinder tube (16A) is connected by bolts. A pair of left and right tongue pieces (20) for connecting the support pin (19) to which the connecting portion (10a) of the working device side end of the top link (10) is externally fitted;
20) is welded to the main frame (17). Furthermore, a pair of left and right U-shaped frames for connecting working equipment (
21) are welded to each of the spacer frames (22) that are welded to the middle rJI frame (18) and the main frame (17).
前記接地輪（１５）と作業装置取付枠（Ｄ）との連結構
造、及び、ロアリンク（９）と接地輪（１５）との連結
構造について説明すれば、接地輪（１５）を縦軸（２３
）周りで支承する取付台（２４）に、前後一対のガイド
軸（２５） 、 （２５）を立設し、それらガイド軸（
２６）に、シリンダチューブ（１６Ａ）から突設した上
下一対の被案内枠部（１６ａ） 、 （１６ａ）を上下
動自在に外嵌させである。そして、前記ロアリンク（９
）の作業装置側端部の連結部（９ａ）が外嵌着される支
持ピン（２６）を、前記接地輪取付台（２４）に、溶接
にて取付けである。但し、前記シリンダ（１６）のピス
トンロンド（１６Ｂ）の下端部は、前記接地輪取付台（
２４）に受止め支持されることになる。To explain the connection structure between the grounding ring (15) and the work equipment mounting frame (D) and the connection structure between the lower link (9) and the grounding ring (15), the grounding ring (15) is connected to the vertical axis ( 23
) A pair of front and rear guide shafts (25), (25) are installed upright on a mounting base (24) that supports around the guide shafts (
26), a pair of upper and lower guided frame portions (16a), (16a) protruding from the cylinder tube (16A) are fitted onto the cylinder tube (16A) so as to be vertically movable. Then, the lower link (9
The support pin (26) to which the connecting portion (9a) at the end of the work device is externally fitted is attached to the ground wheel mounting base (24) by welding. However, the lower end of the piston rod (16B) of the cylinder (16) is connected to the ground wheel mounting base (
24).
尚、図中、（２７）は、一対のガイド軸（２５）の上端
部間に亘って取付けられる間隔規制用の補強枠である。In addition, in the figure, (27) is a reinforcing frame for spacing regulation that is attached between the upper ends of the pair of guide shafts (25).
又、前後一対のガイド軸（２５）夫々は、両端部にネジ
部が備えられるものであり、そのネジ部を用いながらナ
ツトの締付けにより、取付台（２４）への取付け、補強
枠（２７）の取付けを行うようになっている。Further, each of the pair of front and rear guide shafts (25) is equipped with a threaded portion at both ends, and by tightening a nut using the threaded portion, it can be attached to the mounting base (24) and the reinforcing frame (27). Installation is now possible.
本発明の作業装置連結装置は、耕耘装置（Ｂ）の他、各
種の作業装置の連結に使用できるものである。The working device connecting device of the present invention can be used to connect various working devices in addition to the tilling device (B).
又、作業装置取付枠（Ｄ）の具体構成、及び、リンク機
構（Ｃ）の具体構成は各種変更できる。Further, the specific configuration of the working device mounting frame (D) and the specific configuration of the link mechanism (C) can be changed in various ways.
さらに、駆動装置としては、油圧シリンダ（１６）を用
いる他、電動モータにて駆動回転される螺軸に対して嵌
合するコマ部材に、作業装置取付枠（Ｄ）を連結した、
螺進式の駆動装置を用いる等、各種変更できる。Furthermore, as a drive device, a hydraulic cylinder (16) is used, and a work device mounting frame (D) is connected to a piece member that fits into a screw shaft driven and rotated by an electric motor.
Various changes can be made, such as using a spiral drive device.
図面は本発明に係る作業車の作業装置連結構造の実施例
を示し、第１図は作業装置連結構造の側面図、第２図は
作業装置連結構造の平面図、第３図は作業装置取付枠の
背面図、第４図は作業車の側面図であ′る。第５図は従
来例の側面図である。The drawings show an embodiment of the working device coupling structure for a working vehicle according to the present invention, in which FIG. 1 is a side view of the working device coupling structure, FIG. 2 is a plan view of the working device coupling structure, and FIG. 3 is a diagram showing the mounting of the working device. FIG. 4 is a rear view of the frame and a side view of the work vehicle. FIG. 5 is a side view of the conventional example.
Claims (1)
１０）を昇降自在に連結し、それらリンク（９）、（１
０）のうちの下方側のリンク（９）に、接地輪（１５）
を取付け、且つ、上方側のリンク（１０）に、作業装置
取付枠（Ｄ）を取付け、前記作業装置取付枠（Ｄ）を、
前記接地輪（１５）に対して昇降自在に取付け、前記作
業装置取付枠（Ｄ）を前記接地輪（１５）に対して駆動
昇降操作する駆動装置（１６）を設けてある作業車の作
業装置連結構造。At the rear of the vehicle, there are upper and lower links (9) for connecting working equipment.
10) are connected so that they can be raised and lowered, and these links (9) and (1
Attach the grounding ring (15) to the lower link (9) of 0).
Attach the working device mounting frame (D) to the upper link (10), and attach the working device mounting frame (D) to the upper link (10).
A working device for a working vehicle, which is provided with a drive device (16) that is attached to the grounding wheel (15) so as to be able to rise and fall freely, and that drives and raises and lowers the working device mounting frame (D) with respect to the grounding wheel (15). Connected structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60190157A JPH0659122B2 (en) | 1985-08-28 | 1985-08-28 | Work vehicle connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60190157A JPH0659122B2 (en) | 1985-08-28 | 1985-08-28 | Work vehicle connection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6248304A true JPS6248304A (en) | 1987-03-03 |
| JPH0659122B2 JPH0659122B2 (en) | 1994-08-10 |
Family
ID=16253369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60190157A Expired - Lifetime JPH0659122B2 (en) | 1985-08-28 | 1985-08-28 | Work vehicle connection structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0659122B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5952806U (en) * | 1982-10-01 | 1984-04-06 | 松山株式会社 | Agricultural machine mounting hitch |
-
1985
- 1985-08-28 JP JP60190157A patent/JPH0659122B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5952806U (en) * | 1982-10-01 | 1984-04-06 | 松山株式会社 | Agricultural machine mounting hitch |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0659122B2 (en) | 1994-08-10 |
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