JPS63116931A - Farm tractor - Google Patents

Abstract

PURPOSE:To increase the minimum ground clearance of a farm tractor, by shifting a front wheel power transmission shaft to a position near to one lateral side of a vehicle body from a position below an engine. CONSTITUTION:A power output shaft 6 is projected from the front surface of a mission casing M in a part near to the left side, and a differential gear 7 is arranged on the left side of a front wheel axle 9. With this arrangement, a front wheel power transmission shaft 8 which couples the power output shaft 6 associatingly with the differential gear 7 may be laid in parallel with a power transmission shaft 5 so that it extends on one lateral side of an engine E.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、機体前部に配備されたエンジンと機体後部に
配備されたミッションケースとを伝動軸で連動連結する
と共に、ミッションケースの前面から突出した出力軸を
前車軸のデフへ前輪伝動軸を介して連動連結してある農
用トフクタに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides an interlocking connection between an engine disposed at the front of the fuselage and a mission case disposed at the rear of the fuselage through a transmission shaft, and The present invention relates to an agricultural tractor in which a protruding output shaft is operatively connected to a front axle differential via a front wheel transmission shaft.

〔従来の技術〕[Conventional technology]

この糧の農用トラクタとしては、例えば実開ｔｉｌｌ（
５６−１５５９３３号公報に示されるように、前輪伝動
軸をエンジンの下方に位置させてあるのが一般的である
。Examples of agricultural tractors that can be used for this purpose include the Jikatill (
As shown in Japanese Patent No. 56-155933, the front wheel transmission shaft is generally located below the engine.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

しかし、上述した位置に前輪伝動軸を配置し九ことで次
のような不都合があった。　即ち農用トフクタはその性
質上、機体下腹部にモーア等の作業装置を装着して走行
したり、凹凸の多い悪路を走行する機会が多く、又、畦
越えをする場合もあるため、機体中腹の最下部に位置す
る前輪伝動軸の地上高を十分に確保する必要があり、そ
の分、機体の本体全体を高く設置する必要が生じ、機体
重心が高くなって安定性を低下させていた。However, arranging the front wheel transmission shaft in the above-mentioned position has the following disadvantages. In other words, due to the nature of agricultural tractors, there are many opportunities to drive with working devices such as mowers attached to the lower abdomen of the aircraft, and to drive on rough roads with many uneven surfaces. It was necessary to ensure sufficient ground clearance for the front wheel transmission shaft located at the bottom of the aircraft, which required the entire main body of the aircraft to be installed higher, raising the aircraft's center of gravity and reducing stability.

本発明は、このような実情に着目し、機体下腹部の地上
高を確保し乍らも機体重心を低くして、安定性を高める
ことのできる農用トフクタを提供することを目的として
いる。The present invention has focused on the above-mentioned circumstances and aims to provide an agricultural tofuctor that can secure the ground clearance of the lower abdomen of the machine, lower the center of gravity of the machine, and improve stability.

〔問題点を解決するための手段〕[Means for solving problems]

上記目的達成のためになされた本発明の特徴構成は、前
輪伝動軸をエンジンの横側方に位置させてある点にあり
、その作用・効果は次の通りである。The characteristic configuration of the present invention, which has been made to achieve the above object, is that the front wheel transmission shaft is located on the lateral side of the engine, and its functions and effects are as follows.

〔作用・効果〕[Action/Effect]

つまり、従来まで機体本体中腹の最下部に位置していた
前輪伝動軸をエンジンの下方から横側方へ移行したこと
で機体中腹の最下部を示す対象が他の箇所に変更されて
最低地上高が高くなり、そしてその差の分だけ機体本体
を下げても、前輪伝動軸をエンジンの下方に配置した場
合とほぼ同じ高さの地上高を確保できるようになった。In other words, the front wheel transmission shaft, which had previously been located at the bottom of the fuselage, has been moved from below the engine to the side, and the target indicating the lowest part of the fuselage has been changed to another location, resulting in a minimum ground clearance. became higher, and even if the main body of the aircraft was lowered by that difference, it became possible to secure almost the same ground clearance as if the front wheel transmission shaft were placed below the engine.

　その結果、従来と同じだけの地上高を確保し乍らも、
機体本体を下げて重心を下に移動させることで機体バラ
ンスの回復と安定性の向上が望めるようになった。As a result, while maintaining the same ground clearance as before,
By lowering the main body of the aircraft and moving the center of gravity downward, it is hoped that the balance of the aircraft will be restored and stability will be improved.

〔実施例〕〔Example〕

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８図に示すように、左右一対の前後車輪（１）。As shown in FIG. 8, a pair of left and right front and rear wheels (1).

（Ｍ）によって支持された機体の前部のボンネット（３
）内に配備されたエンジン（Ｅ）と後部の座席（４）下
方に配備されたミッションケース（９）とを伝動軸（６
）を介して連動連結すると共に、ミッションケース（ロ
）の前面から突出した出力軸ｔｅｌを、前記前車輪（６
）の前車軸＋１１のデフ（７）へ前輪伝動軸（８）を介
して連動連結し、以て、作業車の一例である農用トラク
タを構成してある。The front bonnet of the aircraft (3) supported by (M)
) and the transmission case (9) located below the rear seat (4) are connected to the transmission shaft (6).
), and the output shaft tel protruding from the front of the transmission case (b) is connected to the front wheel (6).
) is interlocked and connected to the front axle + 11 differential (7) via the front wheel transmission shaft (8), thereby constructing an agricultural tractor which is an example of a working vehicle.

第１図及び第２図に示すように、前記出力軸（６１をミ
ッションケース（９）前面の左寄りの部分から突出させ
ると共に、前記デフ（７）を前車軸（９）の左側に設け
、それによってこれらを連動連結する前輪伝動軸（８）
がニンジン（Ｅ）の横側方を通るように１且つ、前記伝
動軸（５）と平行になるようにして架設してある。As shown in FIGS. 1 and 2, the output shaft (61) is made to protrude from the front left side of the transmission case (9), and the differential (7) is provided on the left side of the front axle (9). Front wheel transmission shaft (8) that interlocks and connects these
is installed so that it passes along the lateral side of the carrot (E), and parallel to the transmission shaft (5).

そして、本発明の農用トラクタでは、前記前輪伝動軸（
８）を上方へ移行して、機体の中腹部における地上高を
従来より高く確保できるように彦った分、機体全体を下
げて従来と同じ地上高とし、それＫよって機体の重心を
下げてバランスの回復と安定性の向上を図っているので
ある。In the agricultural tractor of the present invention, the front wheel transmission shaft (
8) has been moved upward to ensure a higher ground clearance in the midsection of the aircraft than before, but the entire aircraft has been lowered to maintain the same ground clearance as before, thereby lowering the center of gravity of the aircraft. The goal is to restore balance and improve stability.

尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

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

図面は本発明に係る農用トラクタの実施例を示し、第１
図は伝動構造を示す平面図、第２図は第１図の■−■線
断面図、第３図は伝動構造を示す側面図である。 （５）・・・・・・伝動軸、（６）・・・・・・出力軸
、（７）・・・・・・デフ、（８）・・・・・・前輪伝
動軸、（９）・・・・・・前車軸、（Ｅ）・・・・・・
エンジン、（Ｍ）・・・・・・ミッションケース。The drawings show an embodiment of the agricultural tractor according to the present invention.
The figure is a plan view showing the transmission structure, FIG. 2 is a sectional view taken along the line ■--■ in FIG. 1, and FIG. 3 is a side view showing the transmission structure. (5)......Transmission shaft, (6)...Output shaft, (7)...Differential, (8)...Front wheel transmission shaft, (9 )...Front axle, (E)...
Engine, (M)...Mission case.

Claims (1)

【特許請求の範囲】[Claims] 　機体前部に配備されたエンジン（Ｅ）と機体後部に配
備されたミッションケース（Ｍ）とを伝動軸（５）で連
動連結すると共に、ミッションケース（Ｍ）の前面から
突出した出力軸（６）を前車軸（９）のデフ（７）へ前
輪伝動軸（８）を介して連動連結してある農用トラクタ
であつて、前記前輪伝動軸（８）をエンジン（Ｅ）の横
側方に位置させてある農用トラクタ。The engine (E) located at the front of the fuselage and the mission case (M) located at the rear of the fuselage are interlocked by a transmission shaft (5), and an output shaft (6) protrudes from the front of the mission case (M). ) is interlockingly connected to a differential (7) of a front axle (9) via a front wheel transmission shaft (8), and the front wheel transmission shaft (8) is located laterally to the engine (E). Agricultural tractor located.