JPS63255123A - Fuel tank mounting structure for walking type mobile farm machine - Google Patents

Abstract

PURPOSE:To perform the installation of a fuel tank in a stable manner by making up both sides, where the fuel tank is opposed, into such a form that becomes narrowed by degrees at each lower part, while setting an expansion angle of a cradle supporting the fuel tank to be smaller than that of these lower parts. CONSTITUTION:A fuel tank 15 is set up in an upper space lying between an engine (unillustrated herein) and a transmission case 3. And, both sides 15a and 15b, where the fuel tank 15 is opposed, are made up into such a form that each lower part become narrowed by degrees, while these lower parts are supported by a cradle 17 formed in the same manner with them. In addition, both sides of this cradle 17 are fixed each to the battery case 16A and the angle 18 fixed to the transmission case 3. At this time, an expansion angle A of the cradle 17 is set to be smaller than that B of both these sides 15a and 15b. On the other hand, a presser member 22 is additionally installed on a top face 15d of the fuel tank 15, and the rod 23 inserted into this presser member is engaged with the engaged member 28 clamped to the cradle 17.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mounting structure for a fuel tank of a walking type mobile agricultural machine.

[Conventional technology]

In conventional walk-behind mobile agricultural machinery, the engine is generally mounted on the top of the front frame, which is connected in a cantilevered manner to the front of the minsion case and extends forward, and the engine is mounted in the space between the top of the engine and the bonnet. A fuel tank was installed, and the flanges on both sides of the fuel tank were bolted to the front frame via connecting members at four locations.

[Problem that the invention seeks to solve]

However, with the above conventional structure, when removing the fuel tank for engine inspection and maintenance, it is necessary to release the four bolts, and when installing it, there is a hassle such as aligning the bolt holes. It took a long time to complete the work.

In addition, since fuel tanks are manufactured by sheet metal processing, the accuracy of the processing dimensions is poor, and when installed on the aircraft, dimensional errors often result in poor installation stability, and it is necessary to insert cushioning material etc. at the tank connection part. There were cases.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned technical problems and provide a fuel tank mounting structure for a walking-type mobile agricultural machine that is easy to attach and detach and has good mounting stability.

[Means for solving problems]

The characteristic configuration of the present invention is that, in a fuel tank mounting structure for a walking type mobile agricultural machine, opposing sides of the fuel tank are formed in a downwardly narrowed shape, and pedestals for receiving and holding the fuel tank are provided on each of the sides. The fuel tank is formed with a spread angle smaller than the spread angle, and is provided with a fixing means for tightening and fixing the fuel tank to the sandwiching direction side, and its functions and effects are as follows.

[Function] The fuel tank is attached to a pedestal having a spread angle smaller than the spread angle of its side surfaces, and is configured to be tightened and fixed in the sandwiching direction by the fixing means, so that each side of the fuel tank It is fixed in a pinched state supported by the pedestal, and is stably held in close contact with the pedestal, and can be easily tightened by simply doing the work without having to take the trouble of aligning the bolt holes during installation. It also makes the work easier.

[Effects of the Invention] Therefore, according to the present invention, the work of attaching and detaching the fuel tank becomes easy, and since the fuel tank is tightened and fixed while being fitted into the pedestal when attached, dimensional errors can be absorbed, and the attachment and fixation are made easier. It is firmly mounted and the installation stability is also good.

[Example] Embodiments of the present invention will be described below based on the drawings.

FIG. 6 shows a walking-type tiller as an example of a walking-type mobile agricultural machine according to the present invention. This power tiller has a pair of left and right wheels (1), (1) mounted on an axle (2), and a machine frame (j) fixed to a mission case (3) and extending forward. 4) Mount the engine (5) on top,
A radiator (6) and a cell morph (7) are installed above the engine (5).

The Maekomi engine (5) is arranged horizontally with the cylinder head (8) facing the mission case (3) and the output rotating shaft (9) extending in the left-right direction of the aircraft. It is located on the left side of the aircraft.

The engine (5) and the transmission case (3) are configured so that power is transmitted through the transmission belt (11), and the transmission belt (11) is connected to the transmission case (12).
).

Additionally, a relatively Δ-shaped air cleaner (13) is installed at the top of the mission case (3), and a battery (14) is installed on the right side of the aircraft between the Minnyong case (3) and the engine (5). A fuel tank (15) is provided above and to the left of the battery (11).

The battery (14) is a box-shaped battery case (16).
The interior has been preserved. In other words, this battery case (
16), the inner side of the fuselage (16a) is bolted to the mission case (3), and the outer side of the fuselage (16b) is bolted to the mission case (3).
is pivoted at the lower end so that it can be opened and closed freely, and this outer surface (16
b) It is constructed so that the battery (14) can be attached by opening and closing it.

Next, referring to FIGS. 1 to 3, the fuel tank (15)
The mounting structure will be explained in detail.

The fuel tank (15) is arranged in the upper space between the engine (5) and the mission case (3).

and opposing sides (15a) of the fuel tank (15).
.

(15b) is formed in a downwardly narrowed shape, and the downwardly narrowed portion is received and held by the pedestal (I7). This pedestal (17) is bent into a roughly U-shape that narrows at the bottom, and the right side edge is the battery case (16).
It is fixed by welding to the inner side surface (16a) of the body, and the left end part is fixed by bolt to the central flat part (18a) of the angle member (18). The angle member (18) has both sides bent in opposite directions, and has a downwardly extending portion (
18b) is fixed to the transmission case (3), and the upwardly extending portion (18c) on the outside of the fuselage is fixed to the transmission case (12).
The cradle (17) is supported and fixed to the body at the left and right ends.

Further, at the upper part of the rear side of the aircraft body of the pedestal (17), a bonnet support member (21) that receives a bonnet (19) and is provided with an insertion hole (20) for a fixing bolt is attached upward. It is connected in a state where it extends to.

The spread angle (A) of the pedestal (17) is the same as that of the fuel tank (1
5) The bottom narrowing side surface (15a), (15b) is formed to be smaller than the divergence angle (B), and the width (L,) of the bottom surface (15c) of the fuel tank (15)
is provided to be the same as the width (L2) of the bottom surface (17c) of the pedestal (17).

A holding member (22) extending in the left-right direction and having an L-shaped cross section is brought into contact with the front edge of the upper surface (15d), which is the portion facing the bottom surface (15c) of the fuel tank (15). Tightening rods (23) and (24) are inserted through the left and right protrusions of the holding member (22), respectively.

Hook portion (25) at the tip of each tightening rod (23), (24).

(26) is the inner side surface of the panteri case (16) (
A locking hole (27) and a pedestal (17) are formed in the hole (16a).
) (30 ), (3
0), the fuel tank (15) can be tightened, thereby forming a fixing means (F) for the fuel tank (15).

In other words, the holding member (22) and the pair of tightening rods (23)
, (24) and nuts (30), (30) constitute the fixing means (F).

In the mounting structure as described above, the fuel tank (15
), the fuel tank (15) is inserted from the front upper part with its lower narrowed part fitting into the lower narrowed part of the pedestal (17). At that time, the pedestal ('1
Since the divergence angle (A) of 7) is smaller than the divergence angle (B) of the fuel tank (15), the fuel tank (15) is attached to the pedestal (17) at the contact point (Sl) shown in Fig. 1. as well as(
S2), but by tightening and fixing the fuel tank (15) using the fixing means (F) as described above, both sides (15a) of the fuel tank (15)
), (15b) and the bottom (15c) are the pedestals (17)
The fuel tank (1
5) will be firmly attached and held.

The present invention is applicable not only to walk-behind tillers but also to binders and other types of seed agricultural machinery.

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.

[Brief explanation of the drawing]

The drawings show an embodiment of the fuel tank mounting structure for a walking type mobile agricultural machine according to the present invention, and FIGS. 1 and 2 are side views of the main parts,
Figure 3 is an exploded perspective view showing the mounting structure of the fuel tank;
The figure is a plan view of the main parts, FIG. 5 is a plan view of the body of the tiller, and FIG. 6 is an overall side view of the tiller. (15)...Fuel tank, (15a), (
15b)...Side, (A), (B)...
...Angle of spread, (F)...Fixing means.

Claims (1)

[Claims] Opposite sides (15a), (15) of the fuel tank (15)
b) is formed into a downwardly narrowed shape, and a pedestal (17) for receiving and holding the fuel tank (15) is provided on each side surface (15a);
The divergence angle (A) is smaller than the divergence angle (B) of (15b)
), and is provided with fixing means (F) for tightening and fixing the fuel tank (15) in the narrowing direction side.