JP2002154342A - Power transmission for tractor - Google Patents

Power transmission for tractor

Info

Publication number
JP2002154342A
JP2002154342A JP2001291950A JP2001291950A JP2002154342A JP 2002154342 A JP2002154342 A JP 2002154342A JP 2001291950 A JP2001291950 A JP 2001291950A JP 2001291950 A JP2001291950 A JP 2001291950A JP 2002154342 A JP2002154342 A JP 2002154342A
Authority
JP
Japan
Prior art keywords
gear
power
transmission
shaft
transmitting
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
Application number
JP2001291950A
Other languages
Japanese (ja)
Other versions
JP3444294B2 (en
Inventor
Osamu Hyodo
兵頭  修
Eiji Takubo
英二 田窪
Fumiaki Nishikawa
文顕 西川
Matsuhiko Tsunekawa
松彦 常川
Original Assignee
Iseki & Co Ltd
井関農機株式会社
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 & Co Ltd, 井関農機株式会社 filed Critical Iseki & Co Ltd
Priority to JP2001291950A priority Critical patent/JP3444294B2/en
Publication of JP2002154342A publication Critical patent/JP2002154342A/en
Application granted granted Critical
Publication of JP3444294B2 publication Critical patent/JP3444294B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To construct a compact and low cost tractor capable of providing for a small-scale farmer. SOLUTION: In a power transmission for a tractor transmitting engine revolution power to a traveling power transmission system transmitting the power to front and rear wheels and an external power transmission system transmitting the power to a working machine, a drive and reverse switch device 16 including a normal revolution gear 15a and a reverse revolution gear 61 transmitting the revolution power and revolving in the reverse directions each other is constructed in the downstream of the engine power, and a transmission gear 15b mashing with a power take off gear 14 transmitting power to the external power transmission system is constructed on a gear 15a of the drive and reverse switch device 16 as one body.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【0001】[0001]
【発明の属する技術分野】この発明は、トラクタの動力
伝達構造に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tractor power transmission structure.
【0002】[0002]
【従来の技術、及び発明が解決しようとする課題】従
来、トラクタは各種作業に対応する為、走行系の複数の
変速装置を備えるものである。また、トラクタには後部
に連結した作業機を駆動する為の外部動力取出軸を備
え、同軸の回転数を変速する変速装置をも備える構成と
なっている。この為、トラクタのミッションケースは前
後に長くなりやすく、特に小規模な農家にはコンパクト
で安価なトラクタが望まれていた。
2. Description of the Related Art Conventionally, a tractor is provided with a plurality of transmissions of a traveling system in order to cope with various operations. In addition, the tractor is provided with an external power take-off shaft for driving a work machine connected to the rear part, and also with a transmission for changing the coaxial rotation speed. For this reason, the transmission case of the tractor tends to be long before and after, and a compact and inexpensive tractor has been desired especially for small-scale farmers.
【0003】[0003]
【課題を解決するための手段】この発明は、前記従来の
課題を解消するために提案するものであって、トラクタ
の動力伝達構造を以下のように構成した。即ち、エンジ
ンの回転動力を、前後輪へ伝達する走行動力伝達系と、
作業機へ伝達する外部動力伝達系とに伝達するトラクタ
の動力伝達構造において、前記エンジンの動力下手側
に、前記回転動力を伝達して互いに逆転する正転用ギヤ
15aと逆転用ギヤ61を有する前後進切替装置16を
構成し、前記前後進切替装置16の一方のギヤ15a
に、前記外部動力伝達系へ動力を伝達する動力取出ギヤ
14と噛み合わせる伝動用のギヤ15bを一体的に構成
したことを特徴とするトラクタの動力伝達構造とした。
SUMMARY OF THE INVENTION The present invention proposes to solve the above-mentioned conventional problems, and has a tractor power transmission structure as follows. That is, a traveling power transmission system that transmits the rotational power of the engine to the front and rear wheels,
In a power transmission structure of a tractor for transmitting to an external power transmission system for transmitting to a work machine, a front and rear gear having a forward rotation gear 15a and a reverse rotation gear 61 for transmitting the rotational power and rotating in reverse with each other, on the lower power side of the engine. A gear 15a of the forward / reverse switching device 16
A power transmission structure for a tractor, wherein a transmission gear 15b meshing with a power take-out gear 14 for transmitting power to the external power transmission system is integrally formed.
【0004】[0004]
【発明の効果】以上のように構成したトラクタの動力伝
達構造は、前記前後進切替装置16の一方のギヤ15a
に、前記外部動力伝達系へ動力を伝達する動力取出ギヤ
14と常時噛み合わせる伝動ギヤ15bを一体的に構成
としたので、ミッションケースの長さをコンパクトに構
成することができると共に、別途外部動力伝達系用に減
速ギヤや軸を設けて回転動力を伝達する構成と比較して
簡素化され、部品コストを削減することができる。
The power transmission structure of the tractor constructed as described above is composed of one gear 15a of the forward / reverse switching device 16.
In addition, the power take-out gear 14 for transmitting power to the external power transmission system is integrally formed with the transmission gear 15b, so that the length of the transmission case can be made compact and the external power Compared to a configuration in which a reduction gear or a shaft is provided for the transmission system to transmit the rotational power, the configuration is simplified and the cost of parts can be reduced.
【0005】[0005]
【発明の実施の形態】以下、この発明の実施の形態を図
面に基づいて説明する。図1はトラクタのミッションケ
ース内部を示す側面図である。トラクタのエンジンボデ
ィの後端はクラッチハウジング2を連結し、更にこの後
端に前後進切替装置16を内装する前軸受ケース9を連
結した構成となっている。また、このトラクタは前輪の
周速を後輪よりも増速して駆動するこのとできる前輪増
速装置18を備えた構成となっている。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing the inside of the transmission case of the tractor. The rear end of the engine body of the tractor is connected to the clutch housing 2, and the rear end is further connected to a front bearing case 9 containing a forward / reverse switching device 16. Further, the tractor is provided with a front wheel speed increasing device 18 which can drive the peripheral speed of the front wheels higher than that of the rear wheels.
【0006】詳細に説明すると、前記エンジンボディの
後壁部19からは、回転動力を出力するクラッチ軸12
を突出して設け、このクラッチ軸12にウェイトホイル
20、クラッチディスク21を軸支し、更に同ディスク
21の後方のクラッチ軸12上に前後スライドするシフ
ターリング22を設けている。そして、クラッチペダル
等の操作によって、前記ハウジング2側部のシフターア
ーム軸23を回転して、これに接続したシフターアーム
24を前後に移動することでクラッチ1を入切する構成
となっている。
More specifically, a clutch shaft 12 for outputting rotational power is output from a rear wall portion 19 of the engine body.
A weight wheel 20 and a clutch disc 21 are pivotally supported on the clutch shaft 12, and a shifter ring 22 that slides back and forth on the clutch shaft 12 behind the disc 21 is provided. The clutch 1 is turned on and off by rotating the shifter arm shaft 23 on the side of the housing 2 by operating a clutch pedal or the like and moving the shifter arm 24 connected thereto forward and backward.
【0007】クラッチハウジング2の後部へ接続する連
結ハウジング8は、後述する前軸受ケース9を覆う板金
製で、この前端部25を前記クラッチハウジング2の後
端面26に接合させてボルト等の締付具で連結し、後端
部も同様に前部伝動ケース7の前端部27に接合させて
連結する構成となっている。前軸受ケース9内には前後
進切替装置16を設け、前記クラッチ軸12からケース
内に入力した回転動力を、走行系回転動力として正転、
若しくは逆転して走行駆動軸10から出力すると共に、
別途動力取出駆動軸11を突出して、車体後部の外部動
力取出軸29を連動する構成となっている。
The connecting housing 8 connected to the rear part of the clutch housing 2 is made of sheet metal for covering a front bearing case 9 described later. The front end 25 is joined to the rear end face 26 of the clutch housing 2 to tighten bolts or the like. The rear end is similarly joined to and connected to the front end 27 of the front transmission case 7. A forward / reverse switching device 16 is provided in the front bearing case 9, and the rotational power input into the case from the clutch shaft 12 is used as the forward rotation of the traveling system.
Or, in reverse and output from the traveling drive shaft 10,
The power take-out drive shaft 11 is separately protruded to interlock the external power take-out shaft 29 at the rear of the vehicle body.
【0008】前記前軸受ケース9内には、この上部に前
記クラッチ軸12の回転を伝達する駆動ギヤ13を突出
して設け、その下方にクラッチハウジング2の後壁部1
9とこの前軸受ケース9の後部間に亘って走行駆動軸1
0を軸支する構成となっている。この走行駆動軸10
は、前記駆動ギヤ13と常時噛み合い遊転する二段ギヤ
15(前側ギヤ15a、後側ギヤ15b)、及びこの二
段ギヤ15に対して常時逆回転するバックギヤ61、及
びこの二段ギヤ15とバックギヤ61との間の前後進切
替クラッチ60とを設けた構成となっている。
A drive gear 13 for transmitting the rotation of the clutch shaft 12 protrudes from an upper portion of the front bearing case 9 and a rear wall portion 1 of the clutch housing 2 is provided below the drive gear 13.
The traveling drive shaft 1 extends between the rear bearing 9 and the rear part of the front bearing case 9.
0 is pivotally supported. This traveling drive shaft 10
The two-stage gear 15 (front side gear 15a, rear side gear 15b) which always meshes with the drive gear 13 and idles, and the back gear 61 which always reversely rotates with respect to the two-stage gear 15, and the two-stage gear 15 A forward / reverse switching clutch 60 between the back gear 61 is provided.
【0009】また、同ケース9は、前記二段ギヤ15の
後側のギヤ15bと常時噛み合ってこの回転動力を車体
後部の外部動力取出軸29へ伝達する動力取出駆動軸1
1と、同軸11の回転を逆転して再度前記走行駆動軸1
0上へ返還する中間ギヤ62を軸支する構成となってい
る。即ち、前記前後進切替クラッチ60を前方へ移動す
ると、回転動力は駆動ギヤ13−二段ギヤの前側ギヤ1
5a−前後進切替クラッチ60−走行駆動軸10と伝達
される。また、前記前後進切替クラッチ60を後方へ移
動すると、回転動力は駆動ギヤ13−二段ギヤの後側ギ
ヤ15b−動力取出ギヤ14−中間ギヤ62−バックギ
ヤ61−前後進切替クラッチ60−走行駆動軸10と伝
達される。また、この走行駆動軸10の後端部は一直線
上にケース外部に突出して設け、カップリング63によ
って伝動ケース入力軸3に連結し、また、前記動力取出
軸11も同様にカップリング64によって連結軸39に
連結している。
The case 9 also has a power take-out drive shaft 1 which constantly meshes with the rear gear 15b of the two-stage gear 15 and transmits this rotational power to an external power take-out shaft 29 at the rear of the vehicle body.
1 and the traveling drive shaft 1
The intermediate gear 62 that returns to 0 is pivotally supported. That is, when the forward / reverse switching clutch 60 is moved forward, the rotational power is transmitted from the driving gear 13 to the front gear 1 of the two-stage gear.
5a, the forward / reverse switching clutch 60, and the traveling drive shaft 10. When the forward / reverse switching clutch 60 is moved backward, the rotational power is transmitted from the driving gear 13-the rear gear 15b of the two-stage gear-the power take-off gear 14-the intermediate gear 62-the back gear 61-the forward / reverse switching clutch 60-the traveling drive. It is transmitted to the shaft 10. The rear end of the traveling drive shaft 10 is provided so as to protrude out of the case in a straight line, and is connected to the transmission case input shaft 3 by a coupling 63, and the power take-out shaft 11 is similarly connected by a coupling 64. It is connected to the shaft 39.
【0010】伝動ケースは、主として変速装置を内装し
た前部伝動ケース7と、後輪用差動装置56や動力取出
用変速装置30等を内装する後部伝動ケース31とから
構成され、両ケース7,31はボルト等の締結具で連結
する構成となっている。前部伝動ケース7は、中間部に
中壁部32を形成して、前後端部は開放して形成し、こ
の後端部には前記後部伝動ケース31の前壁部33を接
合して閉鎖する構成となっている。そしてケース7内部
には、前記中壁部32、及び後部伝動ケース31の前壁
部33間に回転動力を入力するギヤ軸34、このギヤ軸
34の回転を適宜変速する主変速軸36、この主変速軸
36の回転を更に変速する副変速軸35、そして副変速
軸35の回転を前輪へ分岐する前輪取出軸17等を軸受
けして設けている。
The transmission case mainly comprises a front transmission case 7 containing a transmission, and a rear transmission case 31 containing a rear wheel differential 56, a power take-out transmission 30, and the like. , 31 are connected by fasteners such as bolts. The front transmission case 7 has an intermediate wall portion 32 formed at an intermediate portion, and front and rear ends thereof are formed to be open. At the rear end portion, a front wall portion 33 of the rear transmission case 31 is joined and closed. Configuration. Inside the case 7, a gear shaft 34 for inputting rotational power between the middle wall portion 32 and the front wall portion 33 of the rear transmission case 31, a main transmission shaft 36 for appropriately shifting the rotation of the gear shaft 34, An auxiliary transmission shaft 35 for further shifting the rotation of the main transmission shaft 36, and a front wheel take-out shaft 17 for branching the rotation of the auxiliary transmission shaft 35 to the front wheels are provided as bearings.
【0011】また、前部伝動ケース7の前端面28は、
前蓋37をボルト等の締付具で取付けて閉鎖し、この前
蓋37の前部に後軸受ケース38を取付けている。前記
伝動ケース入力軸3は、これら後軸受ケース38と前蓋
37とに亘って軸受けし、外部動力取出軸29へ動力を
伝達する動力取出連動軸4の前部を前蓋37に軸受け
し、この前端部と、後軸受ケース38に軸支した前記連
結軸39との後端部をカップリング40で連結する構成
となっている。
The front end surface 28 of the front transmission case 7 is
The front cover 37 is closed with a fastener such as a bolt, and a rear bearing case 38 is attached to the front of the front cover 37. The transmission case input shaft 3 bears across the rear bearing case 38 and the front cover 37, and the front part of the power take-out interlocking shaft 4 that transmits power to the external power take-off shaft 29 is supported by the front cover 37. The front end and the rear end of the connection shaft 39 supported by the rear bearing case 38 are connected by a coupling 40.
【0012】また更に、前記前蓋37には、これに軸受
けした前輪取出軸17と前記後軸受ケース38に軸支し
た連結軸41との間に、前輪増速装置18を設けてい
る。尚、前輪増速装置18は、前記前輪取出軸17と一
体に回転する直結クラッチ42、及びカウンター軸43
を介して前記回転を増速して回転する増速クラッチ44
を設け、どちらか一方のクラッチを入とすることでトラ
クタの旋回時に前輪の周速を後輪の周速に対して増速す
る装置である。
Further, the front cover 37 is provided with a front wheel speed increasing device 18 between the front wheel take-out shaft 17 supported by the front cover 37 and the connecting shaft 41 supported by the rear bearing case 38. The front wheel speed increasing device 18 includes a direct coupling clutch 42 that rotates integrally with the front wheel take-out shaft 17, and a counter shaft 43.
Speed increasing clutch 44 which rotates by increasing the speed through
Is provided to increase the peripheral speed of the front wheels relative to the peripheral speed of the rear wheels when the tractor turns by turning on either one of the clutches.
【0013】前記伝動ケース入力軸3の延長上には、ギ
ヤ軸34と副変速軸35を設け、動力取出連動軸4の外
周部に前主変速軸36と後主変速軸45とを回転自在に
設けて、この後主変速軸45を中壁部32と後伝動ケー
ス31の前壁部33とに軸受けしている。主変速装置5
は、主変速軸36上の主変速前変速クラッチ46、或い
は主変速後クラッチ47の軸方向の移動によって、動力
伝達を切り替えるもので、前記入力軸3後端の入力ギヤ
48と主変速軸36前端の駆動ギア49を噛み合わせて
常時回転させ、主変速前変速クラッチ46を前方へ移動
すると、変速ギヤ50の噛み合いにより動力をギヤ軸3
4へ伝達する。また、主変速後変速クラッチ47を前方
へ移動すると、変速ギヤ51の噛み合いにより動力をギ
ヤ軸34へ伝達する。また、主変速後変速クラッチ47
を後方へ移動すると、変速ギヤ45の噛み合いにより動
力をギヤ軸34へ伝達するまた、副変速装置6は、副変
速軸35に沿って移動する副変速ギヤ52を前側のギヤ
軸34に直結したり、前記後主変速軸45に噛合させた
り、後側のギヤ53に噛合せたり、又、このギヤ53と
噛合いする減速ギヤ54に噛合させることによって回転
動力を変速軸軸35へ伝達する構成となっている。そし
て、副変速軸35の後端にはベベルピニオンギヤ55が
設けられて、差動装置のベベルリングギヤ56に噛合す
る構成となっている。
A gear shaft 34 and an auxiliary transmission shaft 35 are provided on an extension of the transmission case input shaft 3, and a front main transmission shaft 36 and a rear main transmission shaft 45 are rotatable around the power take-out interlocking shaft 4. , And the rear main transmission shaft 45 is supported by the middle wall portion 32 and the front wall portion 33 of the rear transmission case 31. Main transmission 5
The power transmission is switched by an axial movement of a pre-main-speed transmission clutch 46 or a post-main-speed transmission clutch 47 on the main transmission shaft 36. The input gear 48 at the rear end of the input shaft 3 and the main transmission shaft 36 When the drive gear 49 at the front end is engaged and constantly rotated to move the transmission clutch 46 before the main transmission forward, the power is transmitted to the gear shaft 3 by the engagement of the transmission gear 50.
Transmit to 4. When the transmission clutch 47 is moved forward after the main transmission, the power is transmitted to the gear shaft 34 by the engagement of the transmission gear 51. In addition, the transmission clutch 47 after the main transmission
When the gear is moved backward, the power is transmitted to the gear shaft 34 by the engagement of the transmission gear 45. In addition, the auxiliary transmission 6 directly connects the auxiliary transmission gear 52 that moves along the auxiliary transmission shaft 35 to the front gear shaft 34. The rotational power is transmitted to the transmission shaft 35 by meshing with the rear main transmission shaft 45, meshing with the rear gear 53, or meshing with the reduction gear 54 meshing with the gear 53. It has a configuration. A bevel pinion gear 55 is provided at the rear end of the auxiliary transmission shaft 35, and meshes with a bevel ring gear 56 of the differential gear.
【0014】又、前輪へ連動する前輪取出軸への連動
は、副変速軸35後端のギヤ57から、ギヤ軸45後端
のギヤ58を経て、前輪取出軸17上の前輪クラッチギ
ヤ59へ噛合い連動し、この前輪クラッチギヤ59を前
記ギヤ58から外すことによって前輪の駆動を切とする
ように構成している。以上のように構成したトラクタの
動力伝達構造は、特に前後進切替装置16のギヤの1つ
を二段ギヤで構成し、この二段ギヤ15からバックギヤ
61へ動力を伝達するカンターギヤを利用し、これを動
力取出ギヤ14として噛み合わせたので、別途外部動力
取出用に減速ギヤや軸を配して回転動力を分岐する構成
と比較して同装置が簡略化されるとともに、部品コスト
を削減することができる。
In addition, the linkage with the front wheel take-out shaft linked to the front wheels is performed from the gear 57 at the rear end of the auxiliary transmission shaft 35, through the gear 58 at the rear end of the gear shaft 45, and to the front wheel clutch gear 59 on the front wheel take-out shaft 17. The front wheel clutch gear 59 is disengaged from the gear 58 so as to stop driving the front wheels. In the power transmission structure of the tractor configured as described above, in particular, one of the gears of the forward / reverse switching device 16 is constituted by a two-stage gear, and a canter gear that transmits power from the two-stage gear 15 to the back gear 61 is used. Since this is meshed with the power take-off gear 14, the device is simplified and the cost of parts is reduced as compared with a configuration in which a reduction gear or a shaft is separately arranged for taking out external power and the rotational power is branched. be able to.
【図面の簡単な説明】[Brief description of the drawings]
【図1】トラクタのミッションケース内部を示す側面
図。
FIG. 1 is a side view showing the inside of a transmission case of a tractor.
【符号の説明】[Explanation of symbols]
1 クラッチ 2 クラッチハウジング 3 入力軸 4 動力取出連動軸 5 主変速装置 6 副変速装置 7 伝動ケース 8 連結ハウジング 9 前軸受ケース 10 走行駆動軸 11 動力取出駆動軸 15 二段ギヤ 15a 前側ギヤ 15b 後側ギヤ 16 前後進切替装置 29 外部動力取出軸 DESCRIPTION OF SYMBOLS 1 Clutch 2 Clutch housing 3 Input shaft 4 Power take-out interlocking shaft 5 Main transmission 6 Sub-transmission 7 Transmission case 8 Connection housing 9 Front bearing case 10 Travel drive shaft 11 Power take-off drive shaft 15 Two-stage gear 15a Front gear 15b Rear side Gear 16 Forward / reverse switching device 29 External power take-off shaft
フロントページの続き (72)発明者 常川 松彦 愛媛県伊予郡砥部町八倉1番地 井関農機 株式会社技術部内 Fターム(参考) 3D039 AA04 AB12 AC45 AC70 AD53 3D043 AB12 BA06 BC02 BC05 EA02 EA36 Continuation of the front page (72) Inventor Matsuhiko Tsunekawa 1-Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd.

Claims (1)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 エンジンの回転動力を、前後輪へ伝達す
    る走行動力伝達系と、作業機へ伝達する外部動力伝達系
    とに伝達するトラクタの動力伝達構造において、前記エ
    ンジンの動力下手側に、前記回転動力を伝達して互いに
    逆転する正転用ギヤ15aと逆転用ギヤ61を有する前
    後進切替装置16を構成し、前記前後進切替装置16の
    一方のギヤ15aに、前記外部動力伝達系へ動力を伝達
    する動力取出ギヤ14と噛み合わせる伝動用のギヤ15
    bを一体的に構成したことを特徴とするトラクタの動力
    伝達構造。
    In a tractor power transmission structure for transmitting a rotational power of an engine to a traveling power transmission system for transmitting the rotational power to front and rear wheels and an external power transmission system for transmitting the rotational power to a work implement, A forward / reverse switching device 16 having a forward rotation gear 15a and a reverse rotation gear 61 for transmitting the rotational power and rotating in the reverse direction is constituted, and one of the gears 15a of the forward / reverse switching device 16 is supplied with power to the external power transmission system. Transmission gear 15 that meshes with power take-out gear 14 that transmits
    A power transmission structure for a tractor, wherein b is integrally formed.
JP2001291950A 2001-09-25 2001-09-25 Tractor power transmission structure Expired - Lifetime JP3444294B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001291950A JP3444294B2 (en) 2001-09-25 2001-09-25 Tractor power transmission structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001291950A JP3444294B2 (en) 2001-09-25 2001-09-25 Tractor power transmission structure

Related Parent Applications (1)

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JP07409298A Division JP3375122B2 (en) 1998-03-23 1998-03-23 Tractor power transmission structure

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JP2002154342A true JP2002154342A (en) 2002-05-28
JP3444294B2 JP3444294B2 (en) 2003-09-08

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Family Applications (1)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5751052A (en) * 1980-09-12 1982-03-25 Iseki & Co Ltd Backing mechanism for movable agricultural machine
JPS58189846U (en) * 1982-06-10 1983-12-16
JPS61157434A (en) * 1984-12-28 1986-07-17 Iseki & Co Ltd Speed change gear in working power take-off unit
JPH0213826U (en) * 1988-07-14 1990-01-29

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5751052A (en) * 1980-09-12 1982-03-25 Iseki & Co Ltd Backing mechanism for movable agricultural machine
JPS58189846U (en) * 1982-06-10 1983-12-16
JPS61157434A (en) * 1984-12-28 1986-07-17 Iseki & Co Ltd Speed change gear in working power take-off unit
JPH0213826U (en) * 1988-07-14 1990-01-29

Also Published As

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JP3444294B2 (en) 2003-09-08

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