JPH06297967A - Fuel device for walking type mobile agricultural machinery - Google Patents

Abstract

(57) [Summary] [Purpose] An engine fuel tank for a walk-behind mobile agricultural machine is arranged compactly. [Configuration] In a walk-behind mobile agricultural machine in which an engine (2) and a mission case (3) are integrally equipped, a fuel tank (5) of the engine (2) is provided between the engine (2) and a mission case (3) behind the engine (2). At the same time, the intermediate part is installed forwardly in an inclined shape, and the tank (5) is connected and fixed to the mission case (3).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel device for a walking type mobile agricultural machine in which a mobile agricultural machine such as a management machine or a tiller is equipped with an engine fuel tank.

[0002]

2. Description of the Related Art When an engine fuel tank is installed in a walk-behind mobile agricultural machine such as a management machine or a cultivator, it is generally arranged above the engine to achieve a compact structure.

[0003]

However, when the fuel tank is arranged above the engine, not only the center of gravity is high and the airframe becomes unstable, but also the upper part of the engine is greatly bulged and the front part of the engine is increased. There were problems such as reduced visibility and making the aircraft look larger.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, in a walking type mobile agricultural machine in which an engine and a mission case are integrally provided, a fuel tank of the engine is provided between the engine and a mission case behind the engine, and an intermediate portion is provided forward. The tank is mounted in a slanted shape and is connected and fixed to the mission case. As a compact structure with a low overall height, it is possible to improve front visibility and stability of the machine body and improve workability. Moreover, by effectively utilizing the surplus space in the engine frame as the installation space for the fuel tank, it is possible to further reduce the overall size.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view of a fuel tank section, FIG. 2 is a side view of an entire tillage management machine, and FIG. 3 is a plan view of the same. In the figure, (1) is an engine frame on which an engine (2) is mounted, (3) Is a mission case for traveling and rotary work in which the rear end of the frame (1) is integrally connected and the engine output is input through a transmission case (4), and (5) is the engine (2) and mission case An engine fuel tank disposed between (3), (6) traveling wheels supported by a traveling case (3a) at the lower front of the transmission case (3) through an axle (7), and (8) a transmission wheel (8). 3) A rotary tiller (10) supported on the rear lower tillage case (3b) through a rotary shaft (9), the mission case (3)
Cultivating frame connected to the rear part of the rear part, (11) left and right rotary covers supporting the left and right sides of the cultivating frame (10) with adjustable mounting angles, and (12) controlling the working depth of the rotary (8). A tail wheel, (13) a residual tillage treatment plate of the rotary (8), (14) a handle base fixed to the upper end of the mission case (3), and (15) horizontally rotating on the handle base (14). A steering handle for freely supporting the base end, (16) a gear shift operation lever, (1
Reference numeral 7) is a rotary high / low speed switching lever, and (18) is a rotary forward / reverse switching lever, which is configured to perform the tilling work by the rotary (8) when the handle (15) is reversed in the front-rear direction. There is.

As shown in FIGS. 4 to 5, the fuel tank (5) is arranged between the engine (2) and the transmission case (3) behind the engine (2). (19) and the upper part of the engine (2) have substantially the same height, the middle part of the tank (5) is inclined to the front side in a side view, and a projection (5a) protruding from the bottom part of the tank (5) is provided on the engine frame (1). Positioning is performed by engaging with the engaging hole (20) on the upper surface, and the left and right constricted portions (2
1) Attach the left and right flat plate parts (5b) formed in the center to the bolts (2
2) and the bracket (23) to connect and fix to the mission case (3).

A transmission pulley (26) (27) and a belt of the transmission case for transmitting the driving force of the output shaft (24) which is the crank shaft of the engine (2) to the input shaft (25) of the transmission case (3). (28) is arranged on the left side of the fuel tank (5), the bottom of the tank (5) is provided at a lower position than the output shaft (24), and the fuel oil in the tank (5) is fed to the engine (2). A fuel pump (29) and an engine air cleaner (30) are provided below and above the right outside of the tank (5).

As shown in FIG. 6, the supporting arm (31) of the tail wheel (12) is attached to the holder (3) of the tilling frame (10).
2) The vertical height is freely adjustable, and either the plowing depth adjusting lever (33) or the adjusting motor (34) is attached to the upper end of the holder (32), and the lever (33) or the motor (34) is attached. 34) a rotary screw shaft (35) interlockingly connected to the motor shaft (34a) of the motor, and the arm (3).
1) is connected and connected to enable automatic or manual tilling depth control.

The support arm (31) has a cylindrical shaft (3
6) and the processing plate (13) having a chevron shape in a plan view are connected and supported via bolts (37), and the center residual plow after being cultivated by the rotary (8) on both left and right sides of the mission case (3). The marks are made even by the processing plate (13).

When the handle (15) in the solid line state in FIG. 2 is reversed and the handle (15) is moved in the right direction opposite to the arrow direction, the handle (13) is treated as shown by the phantom line in FIG. The cylinder shaft (36) is attached to the pivot shaft (38) projecting below the mission case (3) in the reverse posture.

The present embodiment is constructed as described above, and the fuel tank (5) is arranged between the engine (2) and the mission case (3) to provide a compact structure having a low center of gravity and a low bulk. By doing so, it is possible to enable stable and safe tilling work of the machine body.

FIG. 7 shows a structure in which the fuel tank (5) is arranged in the engine frame (1). By effectively utilizing the surplus space (39) in the engine frame (1), the space (39) 39) The tank (5) is extended to the inside or the entire tank (5) is arranged in the space (39),
It is intended to make the whole compact.

[0013]

As is apparent from the above embodiments, the present invention is a walking type mobile agricultural machine in which an engine (2) and a mission case (3) are integrally provided, and a fuel tank (5) of the engine (2). Between the engine (2) and the mission case (3) at the rear of the engine, the intermediate part is installed forward in a slanted manner, and the tank (5) is connected and fixed to the mission case (3). As a compact airframe structure with a low overall height, it is possible to improve the visibility in the front and the stability of the airframe and improve the workability, and moreover, the surplus space (39) in the engine frame (1). ) Also has a remarkable effect such that it can be made more compact as a whole by effectively utilizing it in the installation space of the tank (5).

[Brief description of drawings]

FIG. 1 is a side view of a fuel tank section.

FIG. 2 is an overall side view of a tillage management machine.

FIG. 3 is an overall plan view of a tillage management machine.

FIG. 4 is a side view of a fuel tank section.

FIG. 5 is an explanatory plan view of a fuel tank.

FIG. 6 is an explanatory diagram of a tail wheel portion.

FIG. 7 is an explanatory diagram of an engine frame portion.

[Explanation of symbols]

 (2) Engine (3) Mission case (5) Fuel tank

Claims (1)

[Claims] 1. A walk-behind mobile agricultural machine integrally equipped with an engine and a mission case, wherein a fuel tank of the engine is provided between the engine and a mission case behind the engine.
A fuel device for a walk-behind mobile agricultural machine, characterized in that an intermediate portion is installed forwardly in an inclined shape and the tank is connected and fixed to a mission case.