JPS61191430A - Device for releasing differential gear locking for running vehicle - Google Patents

Device for releasing differential gear locking for running vehicle

Info

Publication number
JPS61191430A
JPS61191430A JP3088685A JP3088685A JPS61191430A JP S61191430 A JPS61191430 A JP S61191430A JP 3088685 A JP3088685 A JP 3088685A JP 3088685 A JP3088685 A JP 3088685A JP S61191430 A JPS61191430 A JP S61191430A
Authority
JP
Japan
Prior art keywords
interlocking
pair
differential gear
differential
steerable wheels
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.)
Pending
Application number
JP3088685A
Other languages
Japanese (ja)
Inventor
Isao Ishida
伊佐男 石田
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
Iseki Agricultural Machinery Mfg Co Ltd
Original Assignee
Iseki and Co Ltd
Iseki Agricultural Machinery Mfg 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, Iseki Agricultural Machinery Mfg Co Ltd filed Critical Iseki and Co Ltd
Priority to JP3088685A priority Critical patent/JPS61191430A/en
Publication of JPS61191430A publication Critical patent/JPS61191430A/en
Pending legal-status Critical Current

Links

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  • Transplanting Machines (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)

Abstract

PURPOSE:To improve the operability of a vehicle by providing an interlocking member for locking a differential gear while interlocking with a pair of steerable wheels when the steering angle of the steerable wheels is increased and providing a releasing member for releasing the locking by the interlocking member when required. CONSTITUTION:The power of an engine is transmitted to a differential gear through a connecting shaft 33 and rotates a pair of steerable wheels 5 to run a vehicle 2. When a steering handle 23 is rotated in any direction as a speed change lever 1 is in an operational running speed position, a pair of laterally arranged rotary members 18 are integrally rotated through an arm potion 20 and a tie rod 21 to steer the pair of steerable wheels 5. In this case, when the steering angle of the wheels 5 is increased, an operating member 30 abuts against a projection 28 of an arm member 29 to rotate an interlocking shaft 25. In result, differential gear locking mechanism is operated to stop the differential operation of the differential gear, rotating the pair of steerable wheels 5 at the same speed.

Description

【発明の詳細な説明】 産業上の利用分野 この発明は走行車体のデフロック解除装置に関し、乗用
苗植機、乗用トラクター等に利用する。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a differential lock release device for a traveling vehicle body, and is used in a riding seedling planting machine, a riding tractor, and the like.

発明が解決しようとする問題点 ロック付デフ機構に連動される左右の操舵輪が最大操舵
角に操舵されたときには、この操舵輪のデフ機構が自動
的にロックされるべく構成された形態の走行車体におい
て、路上走行時には、操舵時の牽引抵抗も少ないためこ
の自動的デフロックは必要でなくむしろ走行速度によっ
ては危険をともない易く、単独にこの操舵時の自動的デ
フロックを解除する操作機構を設けても操作忘れ等の恐
れがある。
Problem to be Solved by the Invention When the left and right steered wheels interlocked with the locking differential mechanism are steered to the maximum steering angle, the differential mechanism of the steered wheels is automatically locked. When the vehicle is running on the road, there is little traction resistance during steering, so this automatic differential lock is not necessary.In fact, it can be dangerous depending on the driving speed, so an operating mechanism is provided to independently release the automatic differential lock during steering. There is also a risk of forgetting to operate.

問題を解決するための手段 この発明は、作業走行速と路上走行速とに切替操作しう
る変速レバー(1)を有した走行車体(2)に、デフ機
構(3)とデフロック機構(4)とを有する左右の操舵
輪(5)(5)が大きい操舵角に操作された場合には、
この操舵輪(5)(5)の操舵移動に連動してデフロッ
クする連動部材(6)を設けると共に、該変速レバー(
1)の路上走行変速位置への操作により該連動部材(6
)のロック連動を解除作動する解除部材(7)をとする
Means for Solving the Problem This invention provides a traveling vehicle body (2) having a gear shift lever (1) that can be operated to switch between a working speed and a road speed, and a differential mechanism (3) and a differential lock mechanism (4). When the left and right steering wheels (5) and (5) are operated to a large steering angle,
An interlocking member (6) that differentially locks in conjunction with the steering movement of the steering wheels (5) (5) is provided, and the gear shift lever (
1), the interlocking member (6
) is the release member (7) that operates to release the lock interlock.

発明の作用、および効果 変速レバー(1)を作業走行速の位置にして左右の操舵
輪(5)(5)を最大の操舵角に操舵すると、この操舵
輪(5)(5)は自動的に連動部材(6)によってデフ
ロックされて、デフ機構(3)が作動している状態より
も牽引力を増加させて走行車体(2)の進路変更をさせ
ることができ、又路と走行のために変速レバー(1)を
路上走行速の位置にすると、デフロックする連動部材(
6)のロック連動を解除部材(7)によって自動的に解
除することになり、従ってデフ機構(3)が常に作動し
た状態で操舵輪(5)(5)を操舵することができるた
め円滑な路上走行ができる。
Functions and Effects of the Invention When the gear shift lever (1) is set to the working speed position and the left and right steering wheels (5) (5) are steered to the maximum steering angle, the steering wheels (5) (5) automatically The differential is locked by the interlocking member (6) to increase the traction force compared to the state in which the differential mechanism (3) is operating, allowing the traveling vehicle body (2) to change its course, and also to improve the road and travel. When the gear shift lever (1) is set to the road speed position, the differential locking interlocking member (
6) is automatically released by the release member (7), and therefore the steering wheels (5) (5) can be steered smoothly with the differential mechanism (3) always operating. Can be driven on the road.

このような作用により、作業走行時に必要なデフロツタ
操作及び路上走行時に必要なデフロックの解除操作がい
づれの場合にも変速レバー(1)の操作のみで自動的に
行なえるため、操作忘れ等を生じることがなくこの走行
車体(2)の取扱いを安全かつ容易にすることができる
Due to this action, the defrot operation required for work driving and the differential lock release operation required for road driving can be performed automatically by simply operating the gear shift lever (1) in any case, resulting in forgetting operations etc. The vehicle body (2) can be handled safely and easily without any problems.

実施例 なお図例において、エンジン等を内装するボンネット(
8)を上側に有したフレーム(9)を設け、このフレー
ム(9)の後端部には、走行速を変速する変速機構等の
連動機構を内装した連動ケース(10)を設けて結合し
、この連動ケース(10)上の後端部には、操縦者の操
縦席(11)を設け、又この連動ケース(10)の後端
の左右両側部には、下端部に後輪(12)を軸装して連
動機構を内装した左右一対の走行連動ケース(13) 
 (13)を設ける。
Embodiment In the illustrated example, the bonnet (which houses the engine etc.)
8) is provided on the upper side, and an interlocking case (10) containing an interlocking mechanism such as a transmission mechanism for changing the traveling speed is provided at the rear end of the frame (9), and the interlocking case (10) is connected to the frame (9). A pilot's cockpit (11) is provided at the rear end of the interlocking case (10), and a rear wheel (12) is provided at the lower end on both left and right sides of the rear end of the interlocking case (10). ) and a pair of left and right running interlocking cases (13) with an interlocking mechanism inside.
(13) is provided.

前記フレーム(9)内の左右方向の中央部には、前後方
向のセンターピン(14)を有するピボットメタル(1
5)を設け、このセンターピン(14)には、中央部の
デフ機構(3)及びデフロック機構(4)と、このデフ
機構(3)に連動される左右一対のフロントアクスル(
17)とを内装したアクスルハウジング(18)を設け
て支承させ、又このアクスルハウジング(1B)の左右
両端部には、該フロントアクスル(1?)に連動する上
下方向の律動機構を内装すると共に、この上下方向の軸
心に対して回動自在の回動体(1B)  (−18)を
各々設け、又この左右の回動体(18)  (18)に
は、操舵前輪(5)を軸(19)装させると共に、前方
に向けてアーム部(20)を突設し、この左右のアーム
部(20)  (20)の前端部間には、棒状のタイロ
ッド(21)を設けて各々ビン連結し、さらにこの−側
の回動体(18)には、内側方向に向けてアーム部(2
2)を突設し、このアーム部(22)の先端部と前記ボ
ンネット(8)の後端上側に設けたステアリングハンド
ル(23)とをドラッグロッド(24)等によって連動
連結する。
A pivot metal (1) having a center pin (14) in the front-rear direction is located in the center of the frame (9) in the left-right direction.
5), and this center pin (14) has a differential mechanism (3) and a differential lock mechanism (4) in the center, and a pair of left and right front axles (
An axle housing (18) containing the front axle (17) is provided to support the axle housing (18), and a vertical rhythm mechanism interlocked with the front axle (1?) is provided at both left and right ends of the axle housing (1B). , rotary bodies (1B) (-18) that are rotatable about the vertical axes are provided respectively, and the left and right rotary bodies (18) (18) have a front steering wheel (5) attached to the axis ( 19) At the same time, an arm part (20) is provided to protrude toward the front, and a bar-shaped tie rod (21) is provided between the front ends of the left and right arm parts (20) to connect each bottle. Furthermore, this - side rotating body (18) has an arm part (2) facing inward.
2) is provided in a protruding manner, and the distal end of this arm portion (22) is interlocked and connected to a steering handle (23) provided above the rear end of the bonnet (8) by means of a drag rod (24) or the like.

前記デフロック機構(4)に連動して左方又は右方に回
動することによりデフロックしうる連動軸(25)を前
記アクスルハウジング(18)ノ前側に突設し、この連
動軸(25)の前端部には、上端部に連動ワイヤーのア
ウター受部を有すると共に、このアウター受部の下側に
左右方向の支軸(26)部を有したブラケット(27)
を設けて固着し、−の係止部と下側の突起部(28)と
からなる側面視逆り形状のアーム体(28)を設けて回
動自在に支承させ、又前記タイロッド(21)には、前
記左右の操舵輪(5)(5)が右方又は左方の最大操舵
角になると該突起部(28)に当接して該アーム体(2
9)を回動させうる一対の作動体(30)  (30)
を突設する。又前記連動ケース(10)内の変速機構に
連動して前方回動で作業走行速に、後方回動によって路
上走行速に変速しうる変速レバー(1)を当該連動ケー
ス(lO)から上方に向けて突設し、この変速レバー(
1)と前記アーム体(29)のインナー係止部とはイン
ナーワイヤー(31)で連結し、前記ブラケッ) (2
7)の7ウタ一受部と前記ボンネット(8)の側面に設
けたアウター受部との間にはアウターワイヤー(32)
を張設する。(33)は連動機構からデフ機構(3)に
連動する連結軸である。又、解除部材(7)は次の前記
各部材の一対の作動体(30’)  (30) 、アー
ム体(29) 、及びブラケット(2?) 、 ワイヤ
ー(31)次に作用について説明する。エンジンの動力
は、変速機構、連動機構等を介して連結軸(33)から
デフ機構(3)に連動され、さらに左右のフロントアク
スル(17)  (17) 、軸(19)  (19)
を介して左右の操舵輪(5)(5)を回転させることに
より走行車体(2)を走行させる。
An interlocking shaft (25) that can perform differential locking by rotating leftward or rightward in conjunction with the differential locking mechanism (4) is provided protruding from the front side of the axle housing (18), and the interlocking shaft (25) At the front end, there is a bracket (27) having an outer receiving part for the interlocking wire at the upper end and a support shaft (26) in the left and right direction below the outer receiving part.
An arm body (28) having an inverted shape in side view consisting of a negative locking part and a lower protrusion (28) is provided to rotatably support the tie rod (21). When the left and right steering wheels (5) (5) reach the maximum right or left steering angle, they come into contact with the protrusion (28) and the arm body (2)
A pair of actuating bodies (30) (30) capable of rotating 9)
to protrude. In addition, a gear shift lever (1) which can be rotated forward to shift to a working speed and backward to shift to a road running speed in conjunction with the gear shift mechanism in the interlocking case (10) is moved upwardly from the interlocking case (10). This gear lever (
1) and the inner locking part of the arm body (29) are connected by an inner wire (31), and the bracket) (2
There is an outer wire (32) between the 7 outer receiving part of 7) and the outer receiving part provided on the side surface of the bonnet (8).
Stretch it. (33) is a connecting shaft that interlocks with the differential mechanism (3) from the interlocking mechanism. The release member (7) is comprised of a pair of operating bodies (30') (30), an arm body (29), a bracket (2?), and a wire (31). The power of the engine is linked to the differential mechanism (3) from the connecting shaft (33) via the transmission mechanism, interlocking mechanism, etc., and then to the left and right front axles (17) (17), shafts (19) (19)
The traveling vehicle body (2) is caused to travel by rotating the left and right steering wheels (5) (5) via the vehicle body (2).

変速レバー(1)を作業走行速の位置にしてステアリン
グハンドル(23)を左方又は右方の何れかに操作する
と、ドラッグロッド(24) 、アーム部(22)を介
して、このアーム部(22)側の回動体(18)を回動
させると共に、アーム部(20)、タイトロッド(21
) 、アーム部(2G)を介して他側の回動体(18)
を回動させて左右の操舵輪(5)(5)を操舵し、さら
にハンドル(23)を操作して操舵輪(5)(5)を大
きい操舵角にすると、タイロッド(21)の一方向への
移動によって作動体(30)がアーム体(29)の突起
部(2B)に当接してアーム体(29) 、ブラケット
(27)を介して連動軸(25)を回動させることによ
り、デフロック機構(4)が作動してデフ機構(3)の
デフ作動を停止させ左右の操舵輪(5)(5)を等速回
転させる。
When the gear shift lever (1) is set to the working speed and the steering handle (23) is operated either to the left or right, the arm part ( 22) side, the arm part (20) and the tight rod (21) are rotated.
), the rotating body (18) on the other side via the arm part (2G)
When the left and right steering wheels (5) (5) are rotated and the steering wheel (5) (5) is turned to a large steering angle by operating the handle (23), the tie rod (21) is rotated in one direction. When the actuating body (30) comes into contact with the protrusion (2B) of the arm body (29) and rotates the interlocking shaft (25) via the arm body (29) and the bracket (27), The differential lock mechanism (4) operates to stop the differential operation of the differential mechanism (3) and rotate the left and right steered wheels (5) at a constant speed.

又変速レバー(1)を路上走行速の位置にすると、イン
ナーワイヤー(31)によって引張られてアーム体(2
9)は支軸(2B)を支点として上方に回動するため、
アーム体(29)の突起部(28)はタイロッド(21
)が移動しても作動体(30)に係合することがなく、
つまりハンドル(23)操作により左右の操舵輪(5)
(5)を大きい操舵角にしても、デフ機構(3)はデフ
ロック機構(4)によって作動を停止されることがない
When the gear shift lever (1) is set to the road speed position, the arm body (2) is pulled by the inner wire (31).
9) rotates upwards using the support shaft (2B) as a fulcrum,
The protrusion (28) of the arm body (29) is connected to the tie rod (21).
) does not engage with the actuating body (30) even if it moves,
In other words, by operating the handle (23), the left and right steering wheels (5)
Even if (5) is set to a large steering angle, the operation of the differential mechanism (3) is not stopped by the differential lock mechanism (4).

【図面の簡単な説明】[Brief explanation of drawings]

図はこの発明の一実施例を示すもので、第1図は側面図
、第2図は一部の平面図である。 図中、符号(1)は変速レバー、(2)は走行車体、(
3)はデフ機構、(4)はデフロック機構、(5)l*
m舵輪、(6)l*a!!b部材、(7)は解除部材を
示す。
The figures show one embodiment of the invention, with FIG. 1 being a side view and FIG. 2 being a partial plan view. In the figure, (1) is the gear lever, (2) is the traveling vehicle body, (
3) is a differential mechanism, (4) is a differential lock mechanism, (5) l*
m steering wheel, (6) l*a! ! Member b, (7) indicates a release member.

Claims (1)

【特許請求の範囲】[Claims] 作業走行速と路上走行速とに切替操作しうる変速レバー
(1)を有した走行車体(2)に、デフ機構(3)とデ
フロック機構(4)とを有する左右の操舵輪(5)(5
)が大きい操舵角に操作された場合には、この操舵輪(
5)(5)の操舵移動に連動してデフロックする連動部
材(6)を設けると共に、該変速レバー(1)の路上走
行変速位置への操作により該連動部材(6)のロック連
動を解除作動する解除部材(7)を設けてなる走行車体
のデフロック解除装置。
A running vehicle body (2) has a gear shift lever (1) that can be operated to switch between a work running speed and a road running speed, and left and right steered wheels (5) have a differential mechanism (3) and a differential lock mechanism (4). 5
) is operated to a large steering angle, this steering wheel (
5) An interlocking member (6) that differentially locks in conjunction with the steering movement in (5) is provided, and the lock interlocking of the interlocking member (6) is released by operating the shift lever (1) to the on-road shift position. A differential lock release device for a traveling vehicle body, which is provided with a release member (7) for releasing the lock.
JP3088685A 1985-02-18 1985-02-18 Device for releasing differential gear locking for running vehicle Pending JPS61191430A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3088685A JPS61191430A (en) 1985-02-18 1985-02-18 Device for releasing differential gear locking for running vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3088685A JPS61191430A (en) 1985-02-18 1985-02-18 Device for releasing differential gear locking for running vehicle

Publications (1)

Publication Number Publication Date
JPS61191430A true JPS61191430A (en) 1986-08-26

Family

ID=12316209

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3088685A Pending JPS61191430A (en) 1985-02-18 1985-02-18 Device for releasing differential gear locking for running vehicle

Country Status (1)

Country Link
JP (1) JPS61191430A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4821601A (en) * 1986-08-05 1989-04-18 Toyota Jidosha Kabushiki Kaisha Differential controlling device for differential gear
JPH0276525U (en) * 1988-11-30 1990-06-12
JPH02115027U (en) * 1989-03-03 1990-09-14

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4821601A (en) * 1986-08-05 1989-04-18 Toyota Jidosha Kabushiki Kaisha Differential controlling device for differential gear
JPH0276525U (en) * 1988-11-30 1990-06-12
JPH081957Y2 (en) * 1988-11-30 1996-01-24 ヤンマー農機株式会社 Traveling equipment for mobile agricultural machinery
JPH02115027U (en) * 1989-03-03 1990-09-14

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