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JP3796875B2 - Tractor - Google Patents
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JP3796875B2 - Tractor - Google Patents

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Publication number
JP3796875B2
JP3796875B2 JP01837497A JP1837497A JP3796875B2 JP 3796875 B2 JP3796875 B2 JP 3796875B2 JP 01837497 A JP01837497 A JP 01837497A JP 1837497 A JP1837497 A JP 1837497A JP 3796875 B2 JP3796875 B2 JP 3796875B2
Authority
JP
Japan
Prior art keywords
tire
lug
boom
link
wheel
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 - Fee Related
Application number
JP01837497A
Other languages
Japanese (ja)
Other versions
JPH10210916A (en
Inventor
伊佐夫 武智
二三男 黒岩
康弘 宮内
征典 今井
真人 永井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iseki and Co Ltd
Original Assignee
Iseki and Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Iseki and Co Ltd filed Critical Iseki and Co Ltd
Priority to JP01837497A priority Critical patent/JP3796875B2/en
Publication of JPH10210916A publication Critical patent/JPH10210916A/en
Application granted granted Critical
Publication of JP3796875B2 publication Critical patent/JP3796875B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Agricultural Machines (AREA)
  • Catching Or Destruction (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Special Spraying Apparatus (AREA)

Description

【0001】
【発明の属する技術分野】
この発明は、トラクタの薬液散布ブーム架設装置に関し、薬液散布ノズルを配置する散布ブームの収納姿勢を変更するものである。
【0002】
【発明が解決しようとする課題】
トラクタに装着の薬液散布ブームは、散布作業時は車体の左右両側方へ張出させるが、路上走行時や倉庫内収納時等では車体の側面に沿わせるように収納するのが一般的である。これらの散布ブームの収納時であっても倉庫や納屋等の屋内では高さに制限があることが多く、圃場や路上走行時等での収納時では収納高さが比較的高い方が運転者の昇降等に便利である。また、湿田走行時の走行性能を向上させるようにする。
【0003】
【課題を解決するための手段】
この発明は、車体1の前部において平行リンク機構2により昇降自在の薬液散布ブーム3を、該車体1に対して左右横方向へ張り出す張出姿勢Aと、横側面に沿った収納姿勢Bとに切替可能にして装着し、該平行リンク機構2のロアリンク4又はアッパリンク5を伸縮可能に設けて構成し、トラクタの前車輪6、又は後車輪7にタイヤラグ38を取付けるにあたり、前車輪6、又は後車輪7のタイヤ39内側のリム40には、中心のボス部との間に亘ってスポーク41が設けられ、このスポーク41の間隔毎に連結された一連のタイヤラグ38の内側に一体の係合ピン43を有し、これらの係合によってタイヤラグ38が前車輪6、又は後車輪7と一体的に回転する構成とし、さらに、前記タイヤラグ38は、タイヤを嵌合させるタイヤ底44と、この左右両側部のサイドガイド45と、タイヤ底44の外周面に突出のラグ46とから形成され、前記サイドガイド45の前後端部にはピン孔47,48を形成して、前後に相連接されるタイヤラグ38のピン孔47,48との間をリンクピン49で連結するように構成したことを特徴とするトラクタの構成とする。
【0004】
【発明の効果】
車体1の前部では平行リンク機構2によって薬液散布ブーム3が昇降自在に支持されているため、この平行リンク機構2の昇降で薬液散布ブーム3の横方向への張出姿勢Aにおける薬液散布高さを変更したり、薬液散布ブーム3の収納姿勢Bの高さを変更することができる。しかも、この平行リンク機構2はロアリンク4、又はアッパリンク5は伸縮できるため、これらの伸縮によって薬液散布ブーム3の収納姿勢Bの傾斜角度を変えることができ、運転者の昇降の行い易い高さに上昇させたり、低い納屋等に格納し易いように低くすることができる。構成、及び操作が簡潔である。
さらに、湿田での走行性能が向上して、能率の良い作業が可能となる。
【0005】
【実施例】
トラクタ車体1は、前車輪6、後車輪7を駆動して走行する四輪駆動形態とし、高車高形態としている。ステアリングハンドル8の前部のボンネット9下にエンジン10を搭載している。運転席11の横側から後部に亘って薬液収容のタンク12を搭載し、後部に装着するポンプ13の駆動によってタンク12内の薬液をホース14を経て薬液散布ブーム3へ圧送するものである。
【0006】
車体1の前端部にフロントブラケット15を着脱できるように設け、このフロントブラケット15に平行リンク機構2により薬液散布ブーム3を取付ける。平行リンク機構2は、フロントブラケット15の左右両側部に起立の固定縦リンク16の上下に、上下一対のアッパリンク5とロアリンク4の後端を上下回動自在に設け、これらアッパリンク5とロアリンク4との前端部間に亘って可動縦リンク19の上下を連結している。これら左右可動縦リンク19を横部材20で連結して、ブームフレーム21のハンガー22を、セットピン23やフックピン24等に着脱できる。25は電動モータM1によって伸縮される伸縮シリンダーで、ロアリンク4の前端部と可動縦リンク19の上端部との間に連結されて、この伸縮シリンダー25の伸縮によって平行リンク機構2を昇降させる。
【0007】
前記ブームフレーム21には、薬液散布ブーム3が配置される。この散布ブーム3は、車体1の正面に一定幅に亘って設けられるセンタブーム3Cと、この左右両側端部において外側方への張出姿勢Aと収納姿勢Bとにヒンジ26回りに切替可能の左、右サイドブーム3L,3Rとからなり、これら各ブーム3には噴霧ノズル27が配置され、前記ポンプ13からホース14を経て圧送される薬液を各ブーム3のノズル27から下方の土壌面や作物等に噴霧する。
【0008】
前記左右の散布ブーム3L,3Rの切替回動は、ブームフレーム21との間に設けられるモータM2の駆動によって伸縮される伸縮シリンダ28によってばね29に抗して行われる。30は前記ブームフレーム21から突設されたアームで、該ばね29の一端を係止し、ハンドル31を有する。32は該散布ブーム3L,3Rの基部に一体のブームブラケットで、前記ブームフレーム21に対してヒンジ26回りに回動自在で、前記ばね29の一端部を係止すると共に伸縮シリンダ28の先端部を連結している。33はフックで、アーム30に設けられ、収納姿勢Bの散布ブーム3を係止するものである。
【0009】
前記散布ブーム3のうちセンタブーム3Cは車体1の前側でほゞ左右方向に亘って水平状であるが、左右のブーム3L,3Rを張出姿勢Aにしたときは、このセンタブーム3Cに対して外側方へ延長された形態となり、収納姿勢Bとしたときは、車体1の側面及び運転席11の側面に沿った状態となる。
前記ロアリンク4は、伸縮自在として、ピン孔34,35にピン36を差替えて長さを変更調節できる。このロアリンク4を長くすると可動縦リンク19の前下り傾斜角が緩くなり、これに一体的に取付けられる収納姿勢B時の散布ブーム3が傾斜角度を変更されて、左右のブーム3L,3Rの傾斜角が緩くなり、ブーム先端部の高さも低くなる。又、このロアリンク4を短かくすると、逆にブーム3L,3Rの傾斜角が急になって、ブーム先端部の高さも高くなる。
【0010】
図4において、上例と異なる点は、前記ロアリンク4の伸縮を伸縮シリンダ37によって行う構成としたものである。
図5において、上例と異なる点は、前記前車輪6、又は後車輪7にタイヤラグ38を取付けて、湿田走行時の車輪脱出を図るものである。トラクタ車輪6、又は7のタイヤ39内側のリム40にはスポーク41が、中心のボス部との間に亘って設けられ、このスポーク41の間隔毎に連結された一連のタイヤラグ38の内側に一体の係合ピン43を有して、これらの係合によってタイヤラグ38が車輪6、又は7と一体的に回転しうる。
【0011】
前記のタイヤラグ38は、金属乃至硬質合成樹脂材等から成形されたもので、タイヤを嵌合させるタイヤ底44と、この左右両側部のサイドガイド45と、タイヤ底44の外周面に突出のラグ46とを形成し、サイドガイド45の前後端部にはピン孔47,48を形成して、前後に相連接されるタイヤラグ38のピン孔47,48との間をリンクピン49で連結する。又、左右のサイドガイド45の内端部にはピン孔50を形成し、このピン孔50間に前記ピン43を差込んで、スポーク41とリム40との隅部に係合させる。
【図面の簡単な説明】
【図1】 全体の側面図。
【図2】 その一部の拡大側面図。
【図3】 その一部の平面図。
【図4】 一部別実施例を示す平面図。
【図5】 一部別実施例を示すタイヤラグの側面図、及びその一部の斜視図。
【符号の説明】
1 車体
2 平行リンク機構
3 薬液散布ブーム
4 ロアリンク
5 アッパリンク
前車輪
後車輪
38 タイヤラグ
39 タイヤ
40 リム
41 スポーク
43 係合ピン
44 タイヤ底
45 サイドガイド
46 ラグ
47 ピン孔
48 ピン孔
49 リンクピン
A 張出姿勢
B 収納姿勢
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a chemical spraying boom erection device for a tractor, and changes the storage posture of a spraying boom in which a chemical spraying nozzle is arranged.
[0002]
[Problems to be solved by the invention]
The chemical spray boom attached to the tractor is extended to both the left and right sides of the vehicle body during spraying work, but is generally stored along the side of the vehicle body when traveling on the road or in a warehouse. . Even when these spraying booms are stored, the height is often limited indoors, such as in a warehouse or barn. Convenient for lifting and lowering. Further, the traveling performance during the wet field traveling is improved.
[0003]
[Means for Solving the Problems]
The present invention includes an overhanging posture A in which a chemical spraying boom 3 that can be moved up and down by a parallel link mechanism 2 at the front portion of a vehicle body 1 is projected to the left and right lateral directions, and a storage posture B along a lateral side surface. The lower link 4 or the upper link 5 of the parallel link mechanism 2 is provided so as to be extendable and retractable. When the tire lug 38 is attached to the front wheel 6 or the rear wheel 7 of the tractor, the front wheel 6 or the rim 40 on the inner side of the tire 39 of the rear wheel 7 is provided with a spoke 41 between the center boss portion, and is integrally formed inside a series of tire lugs 38 connected at intervals of the spoke 41. The engaging lugs 38 are configured so that the tire lug 38 rotates integrally with the front wheel 6 or the rear wheel 7 by these engagements. Further, the tire lug 38 has a tire bottom 4 on which a tire is fitted. The left and right side guides 45 and lugs 46 projecting from the outer peripheral surface of the tire bottom 44. Pin holes 47 and 48 are formed at the front and rear ends of the side guide 45, A structure of the tractor is characterized in that the pin holes 47 and 48 of the tire lugs 38 connected to each other are connected by link pins 49 .
[0004]
【The invention's effect】
Since the chemical solution spreading boom 3 is supported by the parallel link mechanism 2 at the front portion of the vehicle body 1 so as to be movable up and down, the chemical solution application height in the laterally extending posture A of the chemical solution spreading boom 3 by the raising and lowering of the parallel link mechanism 2. The height of the storage posture B of the chemical spraying boom 3 can be changed. In addition, since the parallel link mechanism 2 can expand and contract the lower link 4 or the upper link 5, the inclination angle of the storage posture B of the chemical spraying boom 3 can be changed by these expansion and contraction, and the driver can easily move up and down. It can be raised or lowered so that it can be easily stored in a low barn or the like. The configuration and operation are simple.
Furthermore, the running performance in the wetland is improved, and efficient work becomes possible.
[0005]
【Example】
The tractor vehicle body 1 has a four-wheel drive configuration in which the front wheel 6 and the rear wheel 7 are driven to travel, and a high vehicle height configuration. An engine 10 is mounted under the hood 9 at the front portion of the steering handle 8. A tank 12 containing a chemical solution is mounted from the side of the driver's seat 11 to the rear portion, and the chemical solution in the tank 12 is pumped to the chemical solution spraying boom 3 through the hose 14 by driving a pump 13 attached to the rear portion.
[0006]
A front bracket 15 is provided at the front end of the vehicle body 1 so as to be detachable, and the chemical solution spraying boom 3 is attached to the front bracket 15 by the parallel link mechanism 2. The parallel link mechanism 2 is provided with a pair of upper and lower upper links 5 and a rear end of a lower link 4 on the upper and lower sides of a fixed vertical link 16 erected on both left and right sides of the front bracket 15. The upper and lower sides of the movable vertical link 19 are connected between the front end portions with the lower link 4. These left and right movable vertical links 19 are connected by a horizontal member 20, and the hanger 22 of the boom frame 21 can be attached to and detached from the set pin 23, the hook pin 24, and the like. An expansion cylinder 25 is expanded and contracted by the electric motor M1 and is connected between the front end portion of the lower link 4 and the upper end portion of the movable vertical link 19, and the parallel link mechanism 2 is moved up and down by the expansion and contraction of the expansion cylinder 25.
[0007]
On the boom frame 21, the chemical solution spraying boom 3 is disposed. The spreading boom 3 can be switched around a hinge 26 between a center boom 3C provided over a certain width in front of the vehicle body 1 and an outwardly projecting posture A and a storage posture B at both left and right ends. The boom 3 includes left and right side booms 3L and 3R. A spray nozzle 27 is disposed on each boom 3, and the chemical liquid pumped from the pump 13 through the hose 14 is transferred to the soil surface below the nozzle 27 of each boom 3. Spray on crops.
[0008]
The switching rotation of the left and right spraying booms 3L, 3R is performed against a spring 29 by an expansion / contraction cylinder 28 that is expanded and contracted by driving a motor M2 provided between the boom frames 21. Reference numeral 30 denotes an arm projecting from the boom frame 21, which has one end of the spring 29 and has a handle 31. Reference numeral 32 denotes a boom bracket integrated with the bases of the spreading booms 3L and 3R. The boom bracket 32 is rotatable around the hinge 26 with respect to the boom frame 21, and locks one end of the spring 29 and at the tip of the telescopic cylinder 28. Are connected. A hook 33 is provided on the arm 30 and locks the spreading boom 3 in the storage posture B.
[0009]
Of the spraying booms 3, the center boom 3C is substantially horizontal in the left-right direction on the front side of the vehicle body 1, but when the left and right booms 3L, 3R are in the extended posture A, the center boom 3C When the storage posture is B, the vehicle body 1 and the driver's seat 11 are in a state of being extended.
The lower link 4 is extendable and can be adjusted by changing the length by replacing the pin 36 with the pin holes 34 and 35. When the lower link 4 is lengthened, the forward downward inclination angle of the movable vertical link 19 becomes loose, and the inclination angle of the spreading boom 3 in the storage posture B attached integrally thereto is changed, so that the left and right booms 3L, 3R The inclination angle becomes loose and the height of the boom tip is also lowered. On the other hand, if the lower link 4 is shortened, the booms 3L and 3R have a steep inclination angle, and the height of the boom tip is also increased.
[0010]
In FIG. 4, the difference from the above example is that the lower link 4 is expanded and contracted by an expansion cylinder 37.
In FIG. 5, the difference from the above example is that a tire lug 38 is attached to the front wheel 6 or the rear wheel 7 so as to escape from the wheel during running in a wet field. The rim 40 inside the tire 39 of the tractor wheel 6 or 7 is provided with a spoke 41 between the center boss portion, and is integrally formed inside a series of tire lugs 38 connected at intervals of the spoke 41. These engagement pins 43 allow the tire lug 38 to rotate integrally with the wheels 6 or 7.
[0011]
The tire lug 38 is formed from a metal or a hard synthetic resin material. The tire bottom 44 for fitting the tire, the side guides 45 on the left and right sides, and the lug protruding on the outer peripheral surface of the tire bottom 44 are used. 46, and pin holes 47 and 48 are formed at the front and rear end portions of the side guide 45, and the pin holes 47 and 48 of the tire lug 38 connected to the front and rear are connected by link pins 49. Also, pin holes 50 are formed in the inner ends of the left and right side guides 45, and the pins 43 are inserted between the pin holes 50 to engage with the corners of the spokes 41 and the rim 40.
[Brief description of the drawings]
FIG. 1 is an overall side view.
FIG. 2 is an enlarged side view of a part thereof.
FIG. 3 is a plan view of a part thereof.
FIG. 4 is a plan view showing a part of another embodiment.
FIG. 5 is a side view of a tire lug showing a partially different embodiment and a perspective view of a part thereof.
[Explanation of symbols]
1 Car body 2 Parallel link mechanism 3 Chemical solution spreading boom 4 Lower link 5 Upper link
6 front wheels
7 rear wheels
38 tire lugs
39 tires
40 rims
41 spokes
43 engaging pin
44 tire bottom
45 side guide
46 rugs
47 pin hole
48 pin hole
49 Link pin A Overhanging posture B Storage posture

Claims (1)

車体(1)の前部において平行リンク機構(2)により昇降自在の薬液散布ブーム(3)を、該車体(1)に対して左右横方向へ張り出す張出姿勢(A)と、横側面に沿った収納姿勢(B)とに切替可能にして装着し、該平行リンク機構(2)のロアリンク(4)又はアッパリンク(5)を伸縮可能に設けて構成し、トラクタの前車輪(6)、又は後車輪(7)にタイヤラグ(38)を取付けるにあたり、前車輪(6)、又は後車輪(7)のタイヤ(39)内側のリム(40)には、中心のボス部との間に亘ってスポーク(41)が設けられ、このスポーク(41)の間隔毎に連結された一連のタイヤラグ(38)の内側に一体の係合ピン(43)を有し、これらの係合によってタイヤラグ(38)が前車輪(6)、又は後車輪(7)と一体的に回転する構成とし、さらに、前記タイヤラグ(38)は、タイヤを嵌合させるタイヤ底(44)と、この左右両側部のサイドガイド(45)と、タイヤ底(44)の外周面に突出のラグ(46)とから形成され、前記サイドガイド(45)の前後端部にはピン孔(47,48)を形成して、前後に相連接されるタイヤラグ(38)のピン孔(47,48)との間をリンクピン(49)で連結するように構成したことを特徴とするトラクタ。 A projecting posture (A) in which a chemical spraying boom (3) that can be moved up and down by a parallel link mechanism (2) at the front portion of the vehicle body (1) protrudes in the lateral direction from the vehicle body (1), and a lateral side surface. retracted position (B) and switchable to and wearing along, the parallel link mechanism (2) constituted by telescopically provided lower link (4) or upper link (5) of the tractor front wheels ( 6) Or when attaching the tire lug (38) to the rear wheel (7), the rim (40) inside the tire (39) of the front wheel (6) or the rear wheel (7) Spokes (41) are provided between them, and there are integral engagement pins (43) inside a series of tire lugs (38) connected at intervals of the spokes (41). Tire lug (38) integrated with front wheel (6) or rear wheel (7) Further, the tire lug (38) has a tire bottom (44) for fitting the tire, side guides (45) on both the left and right side portions, and an outer peripheral surface of the tire bottom (44). Lug (46), pin holes (47, 48) are formed in the front and rear ends of the side guide (45), and the pin holes (47, 48) of the tire lug (38) connected to the front and rear. The tractor is configured to be connected to each other by a link pin (49).
JP01837497A 1997-01-31 1997-01-31 Tractor Expired - Fee Related JP3796875B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP01837497A JP3796875B2 (en) 1997-01-31 1997-01-31 Tractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP01837497A JP3796875B2 (en) 1997-01-31 1997-01-31 Tractor

Publications (2)

Publication Number Publication Date
JPH10210916A JPH10210916A (en) 1998-08-11
JP3796875B2 true JP3796875B2 (en) 2006-07-12

Family

ID=11969945

Family Applications (1)

Application Number Title Priority Date Filing Date
JP01837497A Expired - Fee Related JP3796875B2 (en) 1997-01-31 1997-01-31 Tractor

Country Status (1)

Country Link
JP (1) JP3796875B2 (en)

Also Published As

Publication number Publication date
JPH10210916A (en) 1998-08-11

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