JPH0717272A - Control machine - Google Patents

Abstract

PURPOSE:To lower the position of the center of gravity of a machine body for enhancing stability while enlarging the front field of view of an operator, facilitate the fitting of a fuel tank and securely hold it with a simple constitution. CONSTITUTION:An engine 2 is mounted on the front part of a machine body 1 in such a way that the rear part thereof is inclined upward with regard to the front part, and a fuel tank 7 is arranged in the space between the rear of the engine 2 and a transmission case 3, and also a support 8 having a supporting part 81 for supporting the fuel tank 7 is provided to a handle fitting base 4 that has been provided to the upper part of the transmission case 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a management machine equipped with an engine on a machine body and used for agricultural work such as tilling, soil filling, ridge formation, and trench digging.

[0002]

2. Description of the Related Art Conventionally, this kind of management machine is, for example, the actual Kaisho 5
As described in JP-A-8-157721, an engine is mounted on the front upper part of the airframe, and a mission case for transmitting the rotational power of the engine to traveling wheels and a rotary device is provided on the rear side of the engine in the airframe. The handle support frame is mounted on the upper side of the mission case via the handle mount, while the fuel tank is disposed at the upper position of the engine.

[0003]

However, in the management machine as described above, the vehicle height becomes high because the fuel tank is arranged at a high position above the engine, and therefore the vehicle height is increased while gripping the handle in the field. When performing various operations, the fuel tank narrows the operator's forward field of view, and for example, when performing cultivating work with a rotary device, the fuel tank blocks the forward field of view immediately before cultivating work, and the operator immediately before cultivating. It was difficult to confirm the field conditions in. Further, as described above, if the fuel tank is arranged on the upper side of the engine, the center of gravity of the machine body is located at a high position, which is unstable, difficult to handle, and easily tired.

According to the present invention, by devising the mounting positions of the engine and the fuel tank mounted on the upper front part of the machine body, the operator's front view when performing various works while gripping the handle is expanded, and the field immediately before the work is expanded. Provides a management machine that can easily check the situation, lower the center of gravity of the machine to improve stability, and also has a simple structure for the fuel tank that can be easily and securely held. The purpose is to do.

[0005]

In order to achieve the above-mentioned object, the present invention mounts an engine 2 on the front part of a body 1 and a mission case 3 on the rear part thereof, and on the upper part of the mission case 3, In a management machine provided with a handle support frame 6 via a handle mount 4, an engine 2 is mounted so that its rear part is tilted upward with respect to its front part, and the rear part of the engine 2 and a mission case 3 are mounted. The fuel tank 7 is disposed in the space between the two, and the support 8 having the support 81 for supporting the fuel tank 7 is provided on the handle mounting base 4.

[0006]

With the above-described structure, the engine 2 is mounted so that the rear part is tilted upward with respect to the front part, and the space between the rear part of the engine 2 and the mission case 3 is used to fuel the engine. Since the tank 7 is assembled efficiently and in a bulky manner, depending on the mounting angle of the engine 2 and the disposition position of the fuel tank 7, the front of the operator when performing various operations while gripping the handle. The field of view can be expanded, the operator can easily confirm the field condition immediately before the work, and the center of gravity of the machine body 1 can be lowered to stabilize the overall balance.

Since the handle mounting base 4 is provided with the support 8 having the support 81 for supporting the fuel tank 7, the fuel tank 7 can be mounted with a simple structure via the support 81 of the support 8. It can be installed easily and securely.

[0008]

1 shows the overall structure of a management machine according to the present invention. This management machine is equipped with an engine 2 equipped with a cylinder head 21, a muffler 22 and the like at the upper front part of the machine body 1 and 1, a mission case 3 is connected to the rear side of the mission case 3 to support mainly one traveling wheel 9 on the lower front side of the mission case 3 and a rotary device 10 on the lower rear side as an example of various working devices. A handle support frame 6 having a handle 5 is attached to the upper side of the case 3 via a handle attachment base 4 having an open U-shaped cross section and extending rearward and upward. Further, the traveling wheels 9 and the rotary device 10 are interlocked with the engine 2 via a transmission mechanism installed in the transmission case 11 and the transmission case 3.

The engine 2 is mounted on the machine body 1 so that its rear portion is inclined toward the front side of the machine body, that is, the cylinder head 2 of the engine 2.
The entire engine 2 is mounted in a rearwardly tilted posture so that the engine 1 is directed in the direction of the extension line of the handle support frame 6, and the rear side of the engine 2 and the front side of the mission case 3 are mounted. The fuel tank 7 is arranged in the space formed between the two.

As shown in FIGS. 2 and 7, the fuel tank 7 has an inverted V shape so that the shape of the tank body 70 in a side view matches the shape of the space.
A fuel supply port 72 is provided on the upper part of the container via a neck 71, and a cap 73 is attached to the supply port 72 so that the cap 73 can be opened and closed.
A connection port (not shown) for a fuel hose communicating with the engine 2 is provided on the lower side of the tank body 70, and a pair of pins 74 projecting downward are provided at the bottom of the tank body 70.
74 is provided in the front-back direction. The fuel tank 7 is formed by blow molding, and the pins 74, 74 are also integrally formed during the blow molding. The pins 74, 74
In addition to one pair provided in the front-back direction as in the embodiment, one pair may be provided in the left-right direction. Further, in the embodiment shown in the drawings, the fuel tank 7 is formed of a transparent or translucent synthetic resin, and a hollow tubular gauge portion 75 communicating with the side of the tank body 70 inside the tank is integrally formed during the blow molding. The gauge portion 75 allows the remaining amount of fuel in the fuel tank 7 to be confirmed. As described above, if the gauge portion 75 is formed when the fuel tank 7 is formed, it is not necessary to additionally install a gauge portion such as a vinyl pipe in the tank, and the number of parts can be reduced.
Can be cheap.

On the other hand, on the inner surface of the upper wall of the handle mount 4,
A support portion 81 that mainly supports the neck portion 71 of the fuel tank 7.
The support 8 having the above is fixed so that the support 81 projects forward, and the neck 71 of the fuel tank 7 is inserted into and supported by the support 81 of the support 8. The support 81
Is formed by forming a through hole 81a into which the neck portion 71 of the fuel tank 7 can be inserted in the support 8 and fitting and fixing an elastic support ring 81b such as rubber around the through hole 81a.
By fitting the neck portion 71 of the fuel tank 7 into the support ring 81b, the elastic force of the support ring 81b is used to fix the neck portion 71 to the support body 8 in a fixed manner.

Further, as shown in FIGS. 2 and 5, the machine body 1 is formed with engaging portions 12, 12 with which pins 74, 74 provided at the bottom of the fuel tank 7 can engage. The engaging portion 12 forms through holes 12a, 12a into which the pins 74, 74 can be inserted in the machine body 1, and the through holes 12a, 1
The elastic support rings 12b, 12b made of rubber or the like are fitted around the periphery of 2a, and the pin 74 is elastically fitted and locked in the support ring 12b to make the bottom side of the fuel tank 7 immovable. It is configured to support.

In this embodiment, as shown in FIGS. 2 and 4 to 6, the machine body 1 is provided with an elongated hole 13a for mounting the engine 2.
And a mounting frame 13b of the transmission case 3, and a reinforcing member 14 having a U-shaped cross section, which is slightly narrower than the lateral width of the frame 13 and is open upward. The open end is the fuselage frame 13
It is fixed to the lower part of the base by a fixing means such as welding, and its cross-sectional shape is a wide box-shaped cross section as shown in FIG. With such a structure, the height H of the machine body frame 13 in the vertical direction can be suppressed to a short size, and the rigidity of the machine body frame 13 can be effectively increased. In the above, the engine 2 can be arranged at a position close to the upper side of the traveling wheels 9, so that the center of gravity can be lowered and stable work can be easily performed. Further, the auxiliary member 14 includes
In order that the fixing bolts 15 of the engine 2 can be fixed to the machine body frame 13 from the lower side of the reinforcing member 14, a large insertion hole 14a into which the impact driver can be inserted is provided at each position corresponding to the fixing bolt 15 of the reinforcing member 14. It is provided.

In FIG. 1, 16 is a bonnet and 1
Reference numeral 7 is a cover of the fuel tank 7.

Next, a description will be given of a mounting mode in which the fuel tank 7 is mounted in the space between the rear of the engine 2 and the mission case 3.

Before fixing the handle mount 4 to the upper part of the mission case 3, first, the fuel tank 7 is placed in a space formed between the rear side of the engine 2 and the front side of the mission case 3. Insert the pins 74, 74 provided at the bottom of the fuel tank 7 into the engaging portions 12, 12 of the machine body frame 13.
To be engaged. Next, with the cap 73 removed from the tank body 70, the neck 71 of the fuel tank 7 is removed.
Then, the support 81 of the support 8 is fitted to hold the fuel tank 7 on the support 8, and the handle mounting base 4 is set at the mounting position on the upper part of the transmission case 3 to mount the mounting bolt 1
Fix at 8. As a result, at the same time when the handle mount 4 is mounted on the mission case 3, the fuel tank 7 can be easily mounted on the handle mount 4 via the support body 5 fixed.
In addition, it can be installed stably and securely.

As described above, the tilted posture in which the rear side of the engine 2 is higher than the front side, that is, the tilted posture in which the cylinder head 21 included in the engine 2 is directed to the handle frame 5 side. The engine 2 is mounted on the airframe 1, and the space between the rear of the engine 2 and the mission case 3 is utilized so that the fuel tank 7 can be effectively and lowly assembled. Therefore, depending on the mounting angle of the engine 2 and the disposition position of the fuel tank 7, it is possible to expand the operator's front view when performing various works while gripping the handlebar 5, and the operator can see the field of view immediately before the work. The field condition can be easily confirmed, and the center of gravity of the machine body 1 can be lowered to stabilize the overall balance. In addition, the engine 2 has a rearward tilted posture such that the cylinder head 21 thereof is directed toward the handle support frame 6 side, whereby the vibration direction of the engine 2 is changed from the conventional vertical direction to the handle support frame 6 side.
Can be changed to the extension direction of the steering wheel 5, which suppresses the vibration of the steering wheel 5 due to the driving of the engine 2,
You can satisfactorily work by grasping.

Moreover, as a means for attaching the fuel tank 7, a support 8 having a support portion 81 for supporting the neck portion 71 of the fuel tank 7 is provided on the handle attachment base 4, and a pin 74 is provided on the bottom portion of the fuel tank 7. The pin 74 is inserted into the engaging portion 12 without specially using a fixing means such as a mounting bolt, although the protruding portion is provided and the engaging portion 12 of the pin 74 is provided on the machine body 1. And neck 71
The fuel tank 7 can be easily, stably, and reliably mounted in a very limited space by only a simple fitting operation in which the fuel tank 7 is fitted into the support portion 81 of the support body 8.

In the above embodiment, in order to fix the bottom portion of the fuel tank 7, the pin 74 is provided on the bottom portion of the fuel tank 7 and the engaging portion 12 is provided on the machine body 1. The fixing means composed of the mating portion 12 need not be provided if the neck portion 71 is firmly supported by the supporting portion 81, but it is a simple attaching operation in which the pin 74 is inserted into the engaging portion 12. It is preferable to provide it because more stable and reliable fixing can be obtained. As another fixing means for the bottom of the fuel tank, for example, a receiving portion capable of inserting the entire lower portion of the tank main body 70 on the machine body 1 side or A concave portion or the like may be formed, and the bottom portion of the fuel tank 7 may be immovably held in the machine body 1 by fitting the bottom portion of the tank body 70 into the receiving portion or the concave portion.

[0020]

As described above, according to the present invention,
The engine 2 is mounted so that the rear part inclines upward from the front part with respect to the front part, and the space between the rear part of the engine 2 and the mission case 3 is utilized to make the fuel tank 7 effective and Since the mounting is made low, the operator's front view when performing various operations while gripping the handle can be expanded by the mounting angle of the engine 2 and the disposition position of the fuel tank 7. While the operator can easily check the field conditions immediately before work,
It is possible to lower the position of the center of gravity and stabilize the overall balance. Further, since the support 8 having the support 81 for supporting the fuel tank 7 is provided on the handle mounting base 4, the support 81 of the support 8 is used. The fuel tank 7 can be mounted easily and securely with a simple structure.

[Brief description of drawings]

FIG. 1 is a side view of a management machine showing an overall structure according to the present invention.

FIG. 2 is a side view of a main part of the management machine.

FIG. 3 is a perspective view of a support of the fuel tank.

FIG. 4 is a side view of the airframe.

FIG. 5 is a plan view of the airframe.

6 is an end view taken along the line AA in FIG.

FIG. 7 is a front view of the fuel tank.

[Explanation of symbols]

1; Airframe, 2; Engine, 3; Mission case, 4;
Handle mount, 6; Handle support frame, 7; Fuel tank, 8; Support, 71; Neck, 81; Support

Claims (1)

[Claims] 1. An engine (2) is mounted on a front portion of an airframe (1), a mission case (3) is provided on a rear portion thereof, and a handle mount (4) is provided on an upper portion of the mission case (3). In the management machine provided with the handle support frame (6), the engine (2) is mounted so that the rear part inclines upward with respect to the front part, the rear part of the engine (2) and the mission case (3). A fuel tank (7) is provided in a space between the fuel tank (7) and a support (8) having a support (81) for supporting the fuel tank (7) on the handle mount (4). A management machine characterized by being installed.