JP2527256B2 - Agricultural tractor front work equipment connection structure - Google Patents
Agricultural tractor front work equipment connection structureInfo
- Publication number
- JP2527256B2 JP2527256B2 JP2144673A JP14467390A JP2527256B2 JP 2527256 B2 JP2527256 B2 JP 2527256B2 JP 2144673 A JP2144673 A JP 2144673A JP 14467390 A JP14467390 A JP 14467390A JP 2527256 B2 JP2527256 B2 JP 2527256B2
- Authority
- JP
- Japan
- Prior art keywords
- support
- frame
- portions
- agricultural tractor
- connection structure
- 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 - Lifetime
Links
Landscapes
- Agricultural Machines (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、例えばフロントローダ等の前装作業装置の
連結構造に関し、詳しくは、左右一対の機体フレームを
機体前後方向に沿って配設するとともに、各機体フレー
ムの後部側を前部側よりも下方に位置させ、その中間連
結部を階段状に屈曲成形してある農用トラクタの前装作
業装置連結構造の関する。Description: TECHNICAL FIELD The present invention relates to a connecting structure for a front-loading work device such as a front loader, and more specifically, a pair of left and right body frames are arranged along the longitudinal direction of the body. At the same time, the present invention relates to a front attachment working device connection structure for an agricultural tractor in which the rear side of each machine frame is located lower than the front side and the intermediate connecting portion is bent and formed in a step shape.
上記連結構造において、従来では、先に本願人が特願
昭63−333672号にて考案した構造がある。つまり、機体
フレームの左右両側に前後方向に長いサブフレームを取
付け固定するとともに、このサブフレームの前後中心位
置から横外側方に向けて支持フレーム及び補強フレーム
を平面視三角形状に延設し、支持フレームの外側端に前
装作業装置の支柱フレームを嵌合連結する嵌合部を固着
する構造である。In the above connection structure, conventionally, there is a structure previously devised by the applicant in Japanese Patent Application No. 63-333672. That is, sub-frames that are long in the front-rear direction are attached and fixed to both left and right sides of the machine frame, and the support frame and the reinforcing frame are extended from the center position in the front-rear direction toward the lateral outer side in a triangular shape in plan view to support the sub-frame. This is a structure in which a fitting portion for fitting and connecting the support frame of the front mounting work device is fixed to the outer end of the frame.
ところが、上記従来構造においては、前装作業装置の
荷重を機体前後方向の長いスパンで強固に受止め支持す
るよう構成したものであるが、作業装置支持用連結構造
が複雑で部品点数が多くなる弊害があった。However, in the above conventional structure, the load of the front-mounted working device is configured to be firmly received and supported by the long span in the longitudinal direction of the machine body, but the working device supporting connection structure is complicated and the number of parts increases. There was an evil.
本発明は機体のフレーム構造を有効利用して、前装作
業装置の連結構造を簡素化することを目的としている。An object of the present invention is to effectively utilize the frame structure of the machine body to simplify the connection structure of the front-mounted work device.
本発明の特徴構成は、冒頭に記載した農用トラクタの
前装作業装置連結構造において、前記左右一対の機体フ
レームの中間連結部の下面に、この中間連結部の下面に
沿って階段状に屈曲形成した板状の支持部材を横架連結
するとともに、前記機体フレームから横外側方に突出す
る板状支持部材の突出部の上面に、下向き開放のコの字
形状の前装作業装置連結支持具を重合わせて一体化して
ある。A characteristic configuration of the present invention is that, in the front attachment working device connection structure for an agricultural tractor described at the beginning, a stepwise bend is formed on the lower surface of the intermediate connecting portion of the pair of left and right machine frames along the lower surface of the intermediate connecting portion. In addition to horizontally connecting the plate-shaped support members, a downward-opening U-shaped front working device connection support is provided on the upper surface of the protruding portion of the plate-shaped support member that projects laterally outward from the machine body frame. It is superposed and integrated.
前輪のステアリング機能を阻害することなく、機体後
部の操縦安定性を向上させるために前後階段状に屈曲成
形した機体フレームの機械的強度の大きな中間連結部の
下面同士を連結する支持部材に、前装作業装置の連結支
持具を取付固定する構造であるから、前装作業装置の荷
重を有効に受止め支持することができる。In order to improve the steering stability of the rear part of the machine without hindering the steering function of the front wheels, the support member that connects the lower surfaces of the intermediate connection parts with high mechanical strength of the machine frame bent in a front-rear step shape to the front Since the structure is such that the connecting support of the mounting work device is attached and fixed, the load of the front mounting work device can be effectively received and supported.
その結果、機体フレームの構造を有効利用して、強度
を保持するために機体フレームに貫通孔を設ける等の加
工を要することなく、前装作業装置の支持連結を簡易な
構造により行えるものとなった。又、機体フレーム自体
を前後に長い支持部材に兼用することができて、前装作
業装置の荷重を前後に長いスパンで安定的に支持するこ
とができる利点もある。As a result, the structure of the machine body frame can be effectively used, and the supporting and connecting of the front mounting work device can be performed with a simple structure without requiring processing such as providing a through hole in the machine body frame to maintain the strength. It was Further, there is an advantage that the machine frame itself can be used also as a support member that is long in the front-rear direction, and the load of the front mounting work device can be stably supported in a long span in the front-rear direction.
また、前記支持部材は、機体フレームに亘って架設さ
れた剛体連結の、しかも、階段状に屈折形成された形状
的にも強度が強い板状支持部材であり、その強度的に強
い板状支持部材の突出部の上面に前装作業装置連結支持
具を取付けてあるから、前装作業装置連結支持具の撓み
を強度的に強い板状支持部材で抑制することができ、前
装作業装置連結支持具の支持強度を強度的に強いものに
することができる。しかも、機体フレームに亘って架設
する中間連結支持部材並びに前装作業装置連結支持具を
板状部材によって構成してあるから製作加工も容易とな
る。The supporting member is a plate-shaped supporting member that is rigidly connected across the fuselage frame and has a strong shape because it is bent and formed in a stepwise manner. Since the pre-working work device connecting support is attached to the upper surface of the projecting portion of the member, the bending of the pre-working work device connecting support can be suppressed by the plate-shaped supporting member having high strength, and the pre-working work device connection can be connected. The support strength of the support can be increased in terms of strength. Moreover, since the intermediate connecting support member and the pre-installed work device connecting support which are laid across the machine body frame are constituted by the plate-like member, the manufacturing process is facilitated.
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 with reference to the drawings.
第１図に本発明に係る農用トラクタを示している。こ
の農用トラクタは、機体前後方向略全長に亘って延びる
左右一対の機体フレーム（１），（１）の前部上方にエ
ンジン（２）を搭載するとともに、機体後部にミッショ
ンケース（３）を備え、エンジン（２）の動力をミッシ
ョンケース（３）を介して前後車輪（４），（５）に供
給して走行駆動するよう構成し、機体前部に前装作業装
置の一例であるフロントローダ装置（６）を装着して構
成してある。FIG. 1 shows an agricultural tractor according to the present invention. This agricultural tractor has an engine (2) mounted above the front of a pair of left and right machine frames (1), (1) extending over substantially the entire length in the machine longitudinal direction, and a mission case (3) provided at the rear of the machine. , A front loader, which is an example of a front-mounted working device, which is configured to supply the power of the engine (2) to the front and rear wheels (4) and (5) via a mission case (3) to drive the vehicle. The device (6) is mounted and configured.
前記各機体フレーム（１），（１）は、その後部側を
前部側よりも下方に位置させ、それらの中間連結部
（７），（７）を階段状に屈曲成形して、ステアリング
機構を備えた車輪（４）の車軸を所定高さに維持しなが
ら、機体後部の運転部（８）の位置を可及的に下方に下
げることで、機体の操縦安定性を向上することができる
よう構成してある。In each of the machine body frames (1) and (1), the rear side is positioned lower than the front side, and the intermediate connecting portions (7) and (7) are bent and formed in a stepwise manner to form a steering mechanism. While maintaining the axle of the wheel (4) provided with the vehicle at a predetermined height, the driving stability of the airframe can be improved by lowering the position of the driving section (8) at the rear of the airframe as much as possible. It is configured as follows.
次に、フロントローダ装置（６）の連結構造について
説明する。第２図、第３図に示すように、左右の機体フ
レーム（１），（１）の中間連結部（７），（７）夫々
の下面側に亘って板材を屈曲形成した支持部材（９）を
横架連結するとともに、この支持部材（９）を各機体フ
レーム（１），（１）よりも左右横側外方に突出させて
あり、その突出部（9a），（9a）の後部側を上方に向け
て屈曲成形してある。つまり、前記支持部材（９）は、
機体フレーム（１），（１）の中間連結部（７），
（７）の下面に沿わせて板材を折り曲げた状態で当て付
け溶接固定するとともに、前記突出部（9a），（9a）の
上方立上げ部の内方端縁を機体フレーム（１），（１）
の側面に溶接固定してある。そして、この支持部材
（９）の左右突出部（9a），（9a）にフロントローダ装
置（６）の連結支持具（10），（10）を取付固定してあ
る。詳述すると、前記突出部（9a）に形成された上向き
開放のコの字形領域に下向き開放のコの字形状に屈曲成
形した連結支持具（10）を載置するとともに、その内方
側に上向き開放のコの字形状に屈曲成形した補強部材
（11）を内装し、これらを一体に連結固定して箱形の支
持フレーム構造を構成してある。Next, the connection structure of the front loader device (6) will be described. As shown in FIGS. 2 and 3, a support member (9) formed by bending a plate material over the lower surface side of each of the intermediate connecting portions (7) and (7) of the left and right body frames (1) and (1). ) Is laterally connected, and this support member (9) is made to project to the left and right lateral side outwards of each machine frame (1), (1), and the rear part of the projecting portions (9a), (9a) Bending is performed with the side facing upward. That is, the support member (9) is
Airframe frame (1), intermediate connection part (7) of (1),
The plate material is bent along the lower surface of (7) and fixed by welding, and the inner edges of the upper rising portions of the protrusions (9a) and (9a) are connected to the machine frame (1), ( 1)
It is welded and fixed to the side of. Then, the connection support tools (10) and (10) of the front loader device (6) are attached and fixed to the left and right protruding portions (9a) and (9a) of the support member (9). More specifically, the bending-shaped connecting support tool (10) is placed in the upward-opening U-shaped region formed on the protrusion (9a), and the connecting support (10) is placed on the inner side thereof. A box-shaped support frame structure is formed by internally mounting a reinforcing member (11) bent and formed in a U-shape that is open upward and connecting and fixing these integrally.
前記連結支持具（10），（10）が機体横外側まで延出
するとともに、外方側端部の上面にフロントローダ装置
（６）の支柱フレーム（12），（12）の差し込み連結具
（13），（13）を固定取付してある。差し込み連結具
（13）は、連結支持具（10）に溶接固定したＵ字形の枠
体（13a）の内面に下狭まり状の楔形受け具（13b）を取
付けて構成され、前記支柱フレーム（12）の下端部は前
記楔形受け具（13b）に入まり込む先細状に形成してあ
る。The connection supports (10) and (10) extend to the lateral outside of the machine body, and the connection frames (12) and (12) of the front loader device (6) are connected to the upper surface of the outer end (6). 13) and (13) are fixedly attached. The plug-in connector (13) is constructed by attaching a wedge-shaped receiver (13b) having a downward narrowing shape to the inner surface of a U-shaped frame body (13a) fixed by welding to the connection support device (10). The lower end portion of () is formed in a tapered shape to fit in the wedge-shaped receiving member (13b).
左右の前記支柱フレーム（12）の上下中間位置には、
連結用取付具（14）が固着され、この取付具（14）に
は、機体フレーム（１）前端部の支持部（15）との間で
支持連結される一対の支持アーム（16），（16）を連結
してある。各支持アーム（16），（16）の前端部は連結
パイプ（17）で連結しており、この連結パイプ（17）を
前記支持部（15）に連結支持させてある。第４図にも示
すように、前記支持部（15）は、左右機体フレーム
（１），（１）の前端部横側面に取付固定したブラケッ
ト（15a），（15a）と、ブラケット（15a），（15a）に
溶接した受座（15b），（15b）とから成り、この受座
（15b），（15b）に前記連結パイプ（17）を載置してボ
ルト連結してある。At the upper and lower intermediate positions of the left and right pillar frames (12),
A connecting fixture (14) is fixed, and a pair of support arms (16), (which are supported and connected to the support part (15) at the front end of the body frame (1) are fixed to the fixture (14). 16) are connected. The front ends of the support arms (16) and (16) are connected by a connecting pipe (17), and the connecting pipe (17) is connected and supported by the supporting portion (15). As shown in FIG. 4, the support portion (15) includes brackets (15a) and (15a) fixed to the lateral side surfaces of the front end portions of the left and right body frames (1) and (1), and the bracket (15a). , (15a) welded to the seats (15b) and (15b), and the connection pipes (17) are placed on the seats (15b) and (15b) for bolt connection.
又、支柱フレーム（12）の上端部にはフロントローダ
装置（６）のブーム（18）を枢支し、ブーム（18）の途
中部のブラケット（19）と支柱フレーム（12）の下方側
途中部のブラケット（20）に亘り昇降用油圧シリンダ
（21）を連結してある。Further, the boom (18) of the front loader device (6) is pivotally supported on the upper end of the support frame (12), and the bracket (19) in the middle of the boom (18) and the middle of the lower side of the support frame (12). A lifting hydraulic cylinder (21) is connected to the bracket (20) of the section.
図面は本発明に係る農用トラクタの前装作業装置連結構
造の実施例を示し、第１図は農用トラクタの全体側面
図、第２図は要部の側面図、第３図は要部の縦断正面
図、第４図は前部側支持部の正面図、第５図は要部の分
解斜視図である。 （１），（１）……機体フレーム、（７），（７）……
中間連結部、（９）……支持部材、（9a），（9a）……
突出部、（10），（10）……連結支持具。The drawings show an embodiment of a front work implement connecting structure for an agricultural tractor according to the present invention. Fig. 1 is an overall side view of the agricultural tractor, Fig. 2 is a side view of an essential part, and Fig. 3 is a longitudinal section of the essential part. A front view, FIG. 4 is a front view of a front side support portion, and FIG. 5 is an exploded perspective view of a main part. (1), (1) ... Airframe, (7), (7) ...
Intermediate connecting part, (9) …… Supporting member, (9a), (9a) ……
Protrusions, (10), (10) ... Connection support.
Claims (1)
機体前後方向に沿って配設するとともに、各機体フレー
ム（１），（１）の後部側を前部側よりも下方に位置さ
せ、その中間連結部（７），（７）を階段状に屈曲成形
してある農用トラクタの前装作業装置連結構造であっ
て、前記左右一対の機体フレーム（１），（１）の中間
連結部（７），（７）の下面に、この中間連結部
（７），（７）の下面に沿って階段状に屈曲形成した板
状の支持部材（９）を横架連結するとともに、前記機体
フレーム（１），（１）から横外側方に突出する板状支
持部材（９）の突出部（9a），（9a）の上面に、下向き
開放のコの字形状の前装作業装置連結支持具（10），
（10）を重合わせて一体化してある農用トラクタの前装
作業装置連結構造。1. A pair of left and right fuselage frames (1), (1) are arranged along the longitudinal direction of the fuselage, and the rear side of each fuselage frame (1), (1) is located below the front side. A front attachment working device connection structure for an agricultural tractor in which the intermediate connection portions (7) and (7) are bent and formed in a staircase shape, and the intermediate connection portions (7) and (7) of the left and right body frames (1) and (1) are connected to each other. A plate-like support member (9) bent and formed in a step shape along the lower surface of the intermediate connecting portions (7) and (7) is horizontally connected to the lower surfaces of the intermediate connecting portions (7) and (7). , Downwardly opening U-shaped front-end work on the upper surface of the projecting portions (9a), (9a) of the plate-like support member (9) projecting laterally outward from the machine body frames (1), (1) Device connection support (10),
A structure for connecting front equipment of agricultural tractors, which is integrated by stacking (10).
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2144673A JP2527256B2 (en) | 1990-06-02 | 1990-06-02 | Agricultural tractor front work equipment connection structure |
| US07/675,197 US5123805A (en) | 1990-06-02 | 1991-03-26 | Frame structure for attaching a working implement |
| GB9106523A GB2244418B (en) | 1990-06-02 | 1991-03-27 | Frame structure for attaching a working implement |
| DE4117272A DE4117272C2 (en) | 1990-06-02 | 1991-05-27 | Device holding device for connecting a working device to a vehicle chassis |
| FR9106584A FR2662569B1 (en) | 1990-06-02 | 1991-05-31 | CHASSIS STRUCTURE FOR MOUNTING A WORKING TOOL, ON A TRACTOR, SUCH AS A LOADER, MOWER OR THE LIKE. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2144673A JP2527256B2 (en) | 1990-06-02 | 1990-06-02 | Agricultural tractor front work equipment connection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0440802A JPH0440802A (en) | 1992-02-12 |
| JP2527256B2 true JP2527256B2 (en) | 1996-08-21 |
Family
ID=15367583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2144673A Expired - Lifetime JP2527256B2 (en) | 1990-06-02 | 1990-06-02 | Agricultural tractor front work equipment connection structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2527256B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62285705A (en) * | 1986-06-04 | 1987-12-11 | 株式会社クボタ | Mount apparatus of front mount working machine |
-
1990
- 1990-06-02 JP JP2144673A patent/JP2527256B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0440802A (en) | 1992-02-12 |
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