JPH0533411Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The disclosed technology belongs to the technical field of the structure around the operator's step of a ride-on self-propelled agricultural machine such as a combine harvester.

<Prior Art> Generally, self-propelled agricultural machines such as combine harvesters, which are ride-on agricultural machines and have a pre-processing section installed in front of the seat, are designed so that workers can check the progress of work such as reaping. On the other hand, the layout of drive system devices such as engines and transmissions necessary for driving, and work operation devices has become established in a way that makes it easier to operate than in the past. As shown, the fuel tank 1 of the self-propelled agricultural machine 3 is arranged at the rear of the back seat of the seat 2.

A step body 6 is disposed below the seat 2 of the self-propelled agricultural machine 3 at the front end 5 of a chassis 4, and is supported by a bracket 7 fixed to the chassis 4.

<Problem to be solved by the invention> However, although the step main body 6 provided at the bottom of the seat 2 is supported in a reinforced state by the bracket 7, the reinforcing member in this part has disadvantages that are undesirable for weight reduction. If the fuel tank 1 is located high up, refueling is performed on the chassis 4, but the vehicle height of the self-propelled agricultural machine 3 itself is generally high, making it difficult to refuel and check the remaining fuel level. The problem was that it was difficult.

Seat 2 is opened when refueling or maintaining the engine, etc., but fuel tank 1 is difficult to operate when refueling, and the high location prevents fuel leaks. There were other problems associated with this, such as the unavoidable restraint due to the working position, and the fact that it was prone to wobbling when the opening operation was performed.

Then, the worker has to perform refueling and maintenance in an awkward position, and in order to deal with this, there is no suitable means for attaching a bracket to change the installation position of the fuel tank 1, and it is necessary to attach it firmly. However, there is no flexibility in design, and it is difficult to arrange the bulky fuel tank in a preferable position instead of the conventional mounting manner.

In addition, as shown in Figure 2, workers often work in extremely narrow spaces, making it difficult to operate clutches, etc., and the degree of freedom of movement is low in preparation for operations using the feet. It was an inconvenience.

<Purpose of the invention> The purpose of this invention is to solve the technical problems of the fuel tank and seat area installed in self-propelled agricultural machines based on the above-mentioned conventional technology, and to check refueling and remaining fuel level. When performing maintenance, the fuel tank should be placed in a location with sufficient strength for easy workability, and the fuel tank should be placed in an appropriate position and posture to facilitate maintenance while also reducing weight. It is an object of the present invention to provide an excellent step structure for self-propelled agricultural machines that will definitely benefit the mechanization technology application field in the agricultural industry.

<Means/effects for solving the problem> In accordance with the above-mentioned purpose, the structure of this invention, which is summarized in the scope of the above-mentioned utility model registration claim, is to solve the above-mentioned problem. The front frame, which extends further, is formed as a supporting part for the fuel tank, and the fuel tank installed on the front frame has an upward slope in front, in order to effectively utilize the fuel, and a reinforcing flange is provided on the circumferential surface of the fuel tank. The rigidity of the fuel tank is strengthened together with the front frame, and the upper part is made of elastic material such as a rubber mat with a flat top surface to increase the freedom of movement of the worker's suspension and prevent fatigue. The measures were taken.

<Example> Next, an example of this invention will be described below based on FIG. 1. Note that the same parts as in FIG. 2 will be explained using the same reference numerals.

Reference numeral 6 denotes a step body of a combine harvester as a self-propelled agricultural machine, which forms part of the gist of this invention;
It is formed on the upper surface and the front part of the seat 2, and the edge of the side surface 10 of the extension part 9 is tapered toward the front, and the lower side is sloped upward toward the front. , the side surface 10 is formed into a flat surface 11.

In the fuel tank 1, a joint flange 12 on the side surface of the upper frame body 1' and a joint flange 12 on the side surface of the bottomed lower frame body 1'' (shown as one for convenience of illustration) are connected to an extending portion 9. The joining flanges 1 of each of the frame body 1' and the frame body 1'' are formed parallel to the tapered shape of the frame body 1' and the frame body 1''.
2 and 12 are seal-welded and integrated, and are appropriately fixed to the front frame 8.

Then, the upper and lower surfaces of the fuel tank 1 are tilted upward at a set angle forward in a parallel state,
The last drop of fuel is discharged from a fuel pipe (not shown) at the rear end of the bottom so that it can be used effectively.

A pair of horizontal reinforcing members 13, 13 are welded to the upper surface of the fuel tank 1 using separate members, or are integrally provided by uneven molding during press molding. stiffness, especially lateral stiffness and strength,
In addition, sufficient support strength can be obtained for workers to get on and off the vehicle and to use the foot lever, pedals, etc.

Further, on the upper surface of the fuel tank 1, a reinforcing member 13,
An elastic rubber 14 covering the fuel tank 13 and having a flat upper surface is lined across the entire width direction to make it easier for the operator to move and to prevent slipping. It is designed to soften the impact caused by workers walking, etc.

In the above structure, the front frame 8 fixed to the chassis 4 forms a step main body 6 on the upper surface of the extension part 9 extending to the front, which has the same function and usability as in the past, and the side surface A joint flange 12 of the fuel tank 1 restrains the front frame 8 at the lower part of the fuel tank 1 via the front frame 8 .
The step body 6 and the fuel tank 1 are provided with sufficient strength through the front frame 8, functioning as a part of reinforcing member for the vehicle chassis 4.
It is installed in

The fuel tank 1 is connected to the front frame 8.
By being provided at the front of the combine, it is easy to refuel at a low position relative to the vehicle body, preventing fuel from spilling when refueling, and lowering the center of gravity of the combine to ensure stable running. can assist.

Further, since the fuel tank 1 is provided in the front, there is no support for engine inspection by opening the seat.

Furthermore, since the fuel tank 1 is installed on an upward slope, the fuel can be used effectively to the last drop.

Since the fuel tank is provided with horizontal reinforcing members 13, 13 on its upper surface, it is provided with sufficient three-dimensional strength together with the vertical front frame 8 to prevent deflection during operation of the combine harvester. Prevent deformation etc.

Furthermore, since the upper surface of the fuel tank 1 is covered with the elastic rubber 14, the operator does not feel uncomfortable due to the behavior of the fuel tank 1, and there is no slippage, so the operator is safe and comfortable while working. Guaranteed.

It goes without saying that the embodiment of this invention is not limited to the above-mentioned embodiment, and various embodiments such as forming irregularities on the upper surface of the elastic body can be adopted.

<Effects of the invention> As described above, according to this invention, the fuel tank of the self-propelled agricultural machine is basically placed below the step at the front of the chassis, resulting in a low center of gravity, while reducing the area of the step body. In addition to ensuring a large capacity and stable running, it also simplifies maintenance of the engine and eliminates troubles such as oil leaks during refueling, resulting in excellent usability. .

In addition, the front frame extending from the tip of the chassis is formed to also serve as a step, and by being combined with the fuel tank, the fuel tank itself, which is placed in the step body, can also be used as a strength member. .

The support body that firmly supports the heavy fuel tank forms the support body of the step body, and not only provides a step structure with sufficient strength, but also has the effect of being simple and lightweight, which leads to cost reduction. It is played.

Furthermore, the top surface of the fuel tank is covered with an elastic material such as elastic rubber, which not only makes the driver's movements more comfortable, but also prevents slippage and improves safety. On the other hand, the fuel tank has the effect that the impact caused by the behavior of the worker is absorbed by the elastic body, so that no deformation or the like occurs.

The elastic body also has a heat shielding effect on the fuel tank, preventing the fuel from rising in temperature during the summer, etc.
The effect of eliminating overflow and the like is also achieved.

[Brief explanation of drawings]

The drawings are explanatory diagrams of one embodiment of this invention, and FIG. 1 is a schematic side view in a step, and FIG.
The figure is a schematic side view of a self-propelled agricultural machine. 4... Chassis, 2... Seat, 3... Self-propelled agricultural machine, 6
...Step body, 8...Front frame, 1
...Fuel tank, 14...Elastic body.

Claims (1)

[Scope of utility model registration request] In a step structure for a riding type self-propelled agricultural machine in which a fuel tank is installed in a step body at the front of the chassis, the step body extending from the chassis has at least an upper portion formed by the fuel tank, and The upper surface of the fuel tank is covered with an elastic body, the flange formed on the side surface is integrated with the front upwardly sloped part of the lower part of the front frame, and the lower surface of the fuel tank is made to have a forwardly upwardly sloped surface. Step structure of self-propelled agricultural machinery.