JPH0626113Y2 - Step structure of self-propelled agricultural machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The disclosed technology belongs to a technical field of a structure around a step of a riding type self-propelled agricultural machine such as a combine used on a farm.

<Prior Art> Generally, among self-propelled agricultural machines, a self-propelled agricultural machine such as a combine, which is a riding type and has a pre-processing unit in front of the seat, allows a worker to confirm the working status such as mowing, Almost the basic design of the traveling device or the position where the work operation devices are arranged is determined so that it is easier to work than before. For example, as shown in FIG. 3, the fuel tank 1 is a back seat of the seat 2. It is located at the rear of the.

A frame 4 is provided below the seat 2 of the self-propelled agricultural machine 3.
The front frame bracket 7 fixed to the frame 4 is provided with the step 6 at the tip portion 5 thereof to support it.

A crawler guide 9 is provided above the crawler 8 in order to protect the frame 4 from the rise of the crawler 8 due to the bouncing of the self-propelled agricultural machine 3 or the like.

<Problems to be Solved by the Invention> However, although the step 6 provided in the lower portion of the seat 2 is reinforced and supported as described above, this reinforcing member is a disadvantage against weight reduction. The structure of the frame bracket 7 is complicated, and the fuel tank 1 located at a high position is refueled on the frame 4, but the vehicle height of the self-propelled agricultural machine 3 itself is generally high. It was difficult to refuel, and check the remaining fuel amount.

Further, when the seat 2 of the seat 2 is brought into the open posture during refueling, maintenance of the engine, etc., the fuel tank 1 follows, so that it is difficult to operate, and there is a problem that fuel leaks due to a high place. In addition to being in a state where it is unavoidable to top up, there was also a problem that it became easy to rattle by the opening operation.

Then, the worker must perform refueling and maintenance work in an unreasonable posture, and regarding the design for changing the installation position of the fuel tank 1 in response to this, there is no front frame bracket mounting means of an appropriate structure, and It becomes necessary to attach it firmly, and on the contrary the freedom of design is lost,
There is an inconvenience in arranging a bulky fuel tank in a preferred posture instead of placing it in the conventional manner.

<Purpose of the Invention> The purpose of the present invention is to solve the problems of the fuel tank installed in the self-propelled agricultural machine based on the above-mentioned conventional technology, and to perform inspections at the time of starting and maintenance work, A fuel tank is placed in a location with good workability so that the work can be easily performed at an appropriate position, but the weight can be reduced without impairing the mounting strength. It is intended to provide an excellent step structure of a self-propelled agricultural machine that benefits the

<Means and Actions for Solving the Problems> In order to solve the above-mentioned problems, the configuration of the present invention, which is based on the above-mentioned purpose and has the scope of the above-mentioned utility model registration request, has a step portion at the tip of the frame of the self-propelled agricultural machine. The front frame bracket formed around the fuel tank supports the fuel tank, fixes it, and forms the upper surface of the fuel tank so that it can be used as a step, and at the same time secures the capacity within the range where it does not interfere with devices such as crawlers. A fuel tank is formed with a step area that is equal to that of the conventional fuel tank, and the fuel tank is provided in an upwardly inclined posture with respect to a horizontal plane so that the same fuel supply amount as the conventional one can be ensured. Is located in the vicinity of the crawler, a crawler guide that is attached to the upper part of the crawler and extends forward from the frame is extended to the lower surface of the fuel tank to reinforce the crawler guide. It is a technical measure that makes it possible.

<Embodiment> Next, an embodiment of the present invention will be described below with reference to FIGS. It should be noted that description will be given using the same symbols as those used in FIG.

Reference numeral 3'denotes a combine as a riding type self-propelled agricultural machine, which is used for cutting and threshing in the same manner as in the conventional mode, in which the engine 10 is fixedly installed above the front part of the frame 4 in a predetermined manner. A crawler 8 pivotally supported by the frame 4 is driven through a device to make the self-propelled agricultural machine 3'run freely.

The upper part of the frame 5 is the operation part 11 and the lower part of the seat 2 is the step 6'which is similar to the conventional mode.

Further, a cutting section 12 as a front working section is provided at the front of the machine body, and a threshing section 13 is provided at the rear.

Thus, the fuel tank 1'formed by the area of step 6'and the effective utilization bulk below it is shown in FIG. 2 (the front and rear postures are opposite to those in FIG. 1 for convenience of illustration). As shown in
A front frame bracket 7'which is appropriately slip-resistant formed on the upper surface 15 and is provided on the front end portion 5 of the frame 4 via a bolt, is fixed to be tilted upward in the forward direction.

The front frame bracket 7'is formed so that its lower end edge portion is tapered upward toward the front.

As shown in FIG. 2, in front of the self-propelled agricultural machine 3, a crawler guide 9 ′ is extended forwardly on the lower surface of the frame 4 from above the crawler 8 to the lower surface of the fuel tank 1 ′. It is attached and fixed to the shape.

The upper surface 15 of the fuel tank 1'is formed as a step 6 '.

In the above-mentioned structure, the fuel tank 1'is arranged by effectively utilizing the clearance of the conventional step portion, which is the tip portion 5 of the frame 4 and below the seat 2, and the function of step 6'formed on the upper surface 15 of the fuel tank 1 '. , And usability are the same as in the conventional embodiment.

Further, since the front end of the fuel tank 1'is formed in an inclined posture, the self-propelled agricultural machine 3 is made compact due to the space of the cutting section 12 and the seat 2, and an effective area as a step is secured. .

Then, when the crawler 8 is driven by the engine 10 of the self-propelled agricultural machine 3 and the crawler guide 9 ′ protects the frame 4 from scratches by the crawler 8 when the crawler 8 travels on an uneven surface such as a field. In addition, the crawler 8 itself is prevented from being damaged, but especially the tip portion 5 of the frame 4 is
Since it extends forward with an upward inclination, there is little interference with the crawler 8.

Further, the fuel tank 1'is supported by the front frame bracket 7 ', but it is integrated into the frame 4'.
The crawler is formed as a reinforcing member while being provided in a suspended posture at the tip portion 5 of the crawler, and a sufficient drag force is applied to the upper surface 15 which is the step 6 ', and further, the crawler abutted on the lower surface of the frame 4. It is also supported and reinforced from below by the guide 9 '.

The fuel tank 1'is installed in an upwardly inclined posture in the forward direction in a clearance that can be effectively used by the step portion of the conventional self-propelled agricultural machine 3, and the existing crawler 7 below the fuel tank 1'is installed. There is no contact, and the clearance is sufficiently secured above ground.

The embodiment of the present invention is not limited to the above embodiments, and various other embodiments can be adopted.

<Effect of device> As described above, according to this device, basically, the fuel tank of the self-propelled agricultural machine is arranged below the step at the front part of the frame, thereby showing the arrangement for lowering the center of gravity, and In addition to ensuring sufficient capacity in the area and stable running, maintenance of the engine etc. is easy and there is no trouble such as oil leak even when refueling etc. and it is excellent in usability Is played.

Further, since the front frame bracket extending from the tip of the frame is connected to the fuel tank, the fuel tank itself is used as a strength member in the lower part of the step.

Thus, the crawler guide attached to the lower part of the frame is extended forward from the tip of the frame in the vicinity of the fuel tank suspended by the front frame bracket so as to extend forward so as to extend to the mounting base. Since the fuel tank is supported from the lower side, the fuel tank is also supported, the stress applied to the front frame bracket can be reduced, the durability of the front frame bracket is increased, and the interference with the crawler is prevented. The effect of being further reduced is exhibited.

The steps formed on the top of the fuel tank are stable enough to operate the seat, and in addition, the weight is reduced, the steps are refreshed, the size is reduced, and the center of gravity of the self-propelled agricultural machine is lowered. The effect of increasing maneuverability is achieved.

[Brief description of drawings]

1 and 2 are explanatory views of an embodiment of the present invention.
The figure is a schematic side view of a self-propelled agricultural machine, FIG. 2 is a schematic side view of steps, and FIG. 3 is a schematic side view of a self-propelled agricultural machine in the prior art. 4 ... Frame, 2 ... Seat, 8 ... Crawler, 3 ... Self-propelled agricultural machine, 6 ... Step, 5 ... Frame tip, 1 ... Fuel tank, 6 '... Step body, 9' ... Crawler guide

Claims (1)

[Scope of utility model registration request] 1. In a step structure of a riding-type self-propelled agricultural machine in which a seat is installed at a front portion of a frame and is freely movable through a crawler, a fuel tank has an upper surface formed on a step body at a tip portion of the frame. The step structure of the riding-type self-propelled agricultural machine, wherein the crawler guide is attached to the lower surface of the fuel tank so as to extend forward from the frame in an upwardly inclined shape.