JPH0437395Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention provides a foothold for inspection in a combine harvester, which has a storage tank for storing grain on one side of the machine frame and a threshing section on the other side. It's about structure.

[Problems to be solved by the prior art and the invention] Generally, in this type of combine harvester, the bottom plate of the storage tank is sloped to be lower toward one side of the machine body, and is biased toward one side of the machine body. A spiral conveyor is installed at the lower end of the slope to transport the stored grains back and forth.In order to ensure that the stored grains flow down to the spiral conveyor, the slope is designed in consideration of the angle of repose. Therefore, an internal space is formed surrounding the sloping tank bottom plate, the fuselage frame, and the threshing section. is swingably supported so that it can be laid down toward one side of the body using the conveyance shaft of the spiral conveyance body as a fulcrum, and the upper part of the internal space can be opened and inspected when the storage tank is in the laid down position. ing.

However, conventionally, access to the internal space, which has been opened for inspection due to the overturning of the storage tank, was done by climbing over it from the driver's seat side, but in this case, there was no suitable foothold. Being forced into an unreasonable posture is extremely dangerous and can cause injuries such as tripping and injury, posing problems in terms of workability and safety. Therefore, it is recommended to set up footholds,
In this case, it is necessary to secure a separate space for the foothold, but if this is used as the front plate of the storage tank, for example, a space for the foothold is required between the storage tank and the driver's seat. Accordingly, the length of the machine must be increased, which goes against the trend of miniaturization, and there are also problems such as objects getting caught during work and getting in the way.

[Means for solving the problems] In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing a structure for an inspection foothold in a combine harvester that can eliminate these drawbacks. In a combine harvester in which a storage tank for storing grain is placed on one side in the left-right direction of the machine body frame, and a threshing section for threshing stem culms is placed on the other side, the bottom plate of the storage tank is placed on one side of the machine body. A tank that is sloped so as to be lower toward the lower end of the tank, and a spiral conveyor for transporting stored grains in the front and back direction is disposed at the lower end of the slope that is offset to one side of the body. An internal space is provided between the bottom plate portion, the body frame, and the threshing portion, and the storage tank is swung so that it can be laid down toward one side of the machine body using the conveyance shaft of the spiral conveyance body as a fulcrum. When the storage tank is freely supported and the upper part of the internal space can be opened for inspection when the storage tank is in a collapsed position, the bottom plate of the inclined storage tank is provided with a structure that can be opened when the storage tank is collapsed to perform the above-mentioned inspection condition. The present invention is characterized in that a foothold is provided for entering and exiting the reduced internal space, and the foothold is housed within the internal space formed by the surrounding area when the storage tank is in an upright position.

With this configuration, the present invention allows the foothold for entering and exiting the internal space to be stored in the internal space when no inspection is being performed in the internal space, thereby making effective use of the internal space. be.

[Example] Next, an example of the present invention will be described based on the drawings. In the drawings, reference numeral 1 denotes a traveling body of a combine harvester. The traveling body 1 threshes stem culms cut in a pre-processing section 2 at the front in a threshing section 3, and threshes the culms in a threshing section 3 at the rear. Post-processing such as bundling and shredding is carried out by the processing machine, and the grains are discharged to the field. It is designed to be discharged and stored in a storage tank 6. The stored grains are discharged to the outside of the machine through the discharge tube 7, etc., as is conventional. Moreover, E is an engine arranged behind the storage tank 6.

The storage tank 6 and the threshing section 3 are connected to the driver's seat 8.
At the rear of the fuselage frame 1a, a storage tank 6 is placed on one side in the left-right direction, and a threshing section 3 is placed on the other side. In order to accommodate the angle of repose necessary for grains to flow down to the spiral conveyor 9a, the bottom plate 6a is formed in an inclined shape so as to be lower toward the outer side of the machine body, and the sloped lower end is offset to one side of the machine body. A spiral conveying body 9a for conveying the stored grains in the front-back direction is disposed in the section. Since the bottom plate 6a of the storage tank is sloped, an internal space S is formed between the bottom plate 6a, the body frame 1a, and the side plate 3a of the threshing section 3. Further, the storage tank 6 is swingably supported around the support shaft 9 of the spiral conveyance body 9a so as to be able to fall down toward the outside of the machine body, and is moved from an upright position for storing grains to an upright position.
It is designed to be able to transform into a prone position where it lies outwards. When the storage tank 6 is in the collapsed position, the upper part of the internal space S is opened, so that inspection and maintenance of the inside of the machine body, such as the threshing section 3 and various transmission systems, can be carried out.

Reference numeral 10 denotes a ladder body composed of a steel pipe or the like, and the base end side of the ladder body 10 is swingably supported by the inclined storage tank bottom plate 6a via a support 6b. The tip end can be removably locked to a locking body 6c provided on the bottom plate 6a, and when locked to the locking body 6c, it is in a storage position along the surface of the storage tank bottom plate 6a. Retained. Then, the ladder body 10 in this storage position
is configured to fit within the internal space when the storage tank 6 is in an upright position. On the other hand, when the storage tank 6 is laid down and the upper part of the internal space S is opened, the tip of the ladder body 10 is connected to the locking body 6c.
By removing the ladder body 10 from the threshing section 3 and rotating it toward the threshing section 3, the ladder body 10 assumes a working position for entering and exiting the internal space S where the driver's seat is located on the back side of the driver's seat 8 and is open at the top. Posture is ladder body 10
It is designed to be held by locking its tip to a locking body 3b provided in the threshing section 3, and in this case, a ladder body 10 is interposed between the storage tank 6 which is laid down and the threshing section 3. This structure is designed to prevent the storage tank 6 from suddenly rising and swinging.

On the other hand, reference numeral 11 denotes a fixing device that detachably fixes the storage tank 6 in an upright position by operating a lever 12. That is, the side plate 3a of the threshing section 3 is provided with a support 13.
A protruding shaft 13a is provided to protrude from the lever 12 and the elastic plate 14 using a nut 13c at the tip 13b of the protruding shaft 13a.
The lever 12 and the elastic plate 14 are pivotally connected to each other so as to be able to swing freely around an axis. It is designed to oscillate as a unit. On the other hand, a bracket 15 is integrally attached to the storage tank 6, and the engagement piece 15 of the bracket 15 protrudes from the storage tank 6.
An engagement hole 15b is formed in a, and an inclined guide surface 15c bent toward the threshing section 3 is formed at the tip of the engagement piece 15a. In the fixing device 11, when the lever 12 is placed in the upright fixed position as shown in FIG. Rotation around the core is regulated, and outward rotation of the storage tank 6 is regulated by being received by a lever 12 screwed onto a protruding shaft 13a on the side of the threshing section 3. There is. When it is desired to collapse the storage tank 6, pull the tip of the elastic plate 14 in the direction of arrow A (shown in FIG. 5), remove the protruding pin 14a from the engagement hole 15b, and then move the lever 12 as shown in the arrow. B
By lying down to the imaginary line state shown in FIG. 7 in the direction, the lever 12 releases the receiving and holding position, and it can swing to the lying position. On the other hand, in order to fix and hold the storage tank 6 that has risen again,
The lever 12 may be operated to the fixed position, but in this case, the protruding pin 14a is guided by the inclined guide surface 15c and displaced in the direction of arrow C as shown in FIG. 6, so that the lever 12 is automatically locked. It is becoming possible to do this. With this configuration, the fixing device 11 itself can be made sure that it will not come off due to machine vibrations, etc., and the locking position can be easily adjusted, and it can be automatically locked when the lever 12 is fixed. There are improvements in operation and safety.

In the embodiment of the present invention configured as described above, when performing internal inspection and maintenance of the traveling body 1, first the storage tank 6 is laid down to the outside of the body to open the upper part of the internal space S, and then the ladder body 1
0 is swung from the storage position to the operating position, a foothold is formed for the worker to enter and exit the interior space S, which is open at the top.

As described above, in the present invention, the storage tank 6 is laid down toward the outside of the machine body, and the upper part of the internal space S is opened to allow inspection and maintenance of the inside of the machine body, such as the threshing section 3 and various transmission systems. Although it is a thing,
Unlike in the past, entering and exiting the interior space S can be done safely from the driver's seat side using the ladder body 10 as a foothold, without having to take an unreasonable posture, thereby reducing the risk of tripping and causing injury. It can be prevented.

Moreover, the ladder body 10 is provided on the bottom plate 6a of the storage tank 6, which is formed in an inclined manner to correspond to the angle of repose necessary for the stored grains to flow down reliably. At times,
The storage tank 6 fits inside the internal space S that is surrounded by the grain tank bottom 6a, the machine frame 1a, and the threshing section 3, and is not exposed to the outside.
It will appear based on the lodging.
Therefore, there is no need to secure a space for installing the ladder body 10, for example, between the storage tank 6 and the driver's seat 8, and the space for the ladder body 10 can be secured by effectively utilizing the internal space S as it is. Therefore, it is possible to suppress the increase in size of the machine body, and the ladder body 10 does not get in the way of the work during the work.

Moreover, when inspecting the inside of the aircraft, the ladder body 10 restricts the storage tank 6 from swinging toward the upright position, so the storage tank 6 may suddenly stand up during the work. Such dangers can be reliably prevented, and safety can be significantly improved.

Furthermore, during the reaping and threshing operations, the fixing device 11 holds the storage tank 6 fixedly with the protruding pin 14a fitting into the engagement hole 15b of the bracket 15 and reliably locking the lever 12.
The lever 12 comes off due to the vibration of the machine during work,
This reliably prevents the risk of the storage tank 6 falling down on its own.

It should be noted that the present invention is of course not limited to the above-mentioned embodiment, and the key point is that a foothold for entering and exiting the internal space S, which is open at the top, is provided on the bottom surface 6a of the grain tank formed in an inclined shape. For example, as in the second embodiment shown in FIGS. 9 and 10, a plurality of L-shaped steels 16 are fixed to the storage tank bottom plate a at predetermined intervals in the vertical direction to provide footholds. In this case, there is also an advantage that the bottom plate 6a of the storage tank 6, which is easily subjected to loads due to stored materials, is reinforced by a plurality of L-shaped steels.

[Operations and Effects] In summary, the present invention is constructed as described above, and internal inspections of the threshing section and various transmission systems, etc., can be carried out by moving the grain tank to the machine body using the transport shaft of the spiral transport body as a fulcrum. The storage tank bottom plate is tilted to the side to ensure that it flows down to the spiral conveying body, so the inner space surrounding the storage tank bottom plate is formed between the machine frame and the threshing part. This can be done by opening the upper part of the grain tank, and the user can safely enter and exit the open interior space by using a foothold provided on the bottom plate of the grain tank.

Moreover, this foothold is provided on the bottom plate of the storage tank, which forms an internal space by making the grains flow down the spiral conveyor, so that there is no need to constantly inspect the inside. , that is, when the storage tank is upright,
It will fit in the internal space and will not be exposed to the outside, and will be exposed when the storage tank is collapsed to perform internal inspection. There is no need to secure space between the seat and the exercise seat, and the internal space can be used effectively as is to secure space for footholds, which not only reduces the size of the aircraft, but also
During harvesting, there is no need for footholds to get in the way of work.

[Brief explanation of the drawing]

The drawings show an embodiment of the structure of a foothold for inspection in a combine harvester according to the present invention, and FIG. 1 is an overall schematic perspective view of the combine harvester, and FIG.
3 is a sectional view of the combine harvester, FIG. 3 is a sectional view of the same as above, FIG. 4 is a plan view of the same as above, FIG. 7 is a side view of the same, FIG. 8 is an exploded perspective view of the same, FIG. 9 is a vertical sectional view of the combine harvester showing another embodiment, and FIG. 10 is a sectional view of the same as shown in the working state. In the figure, 1 is a traveling machine body, 3 is a threshing section, 6 is a storage tank, 10 is a ladder body, and S is an internal space.

Claims (1)

[Scope of utility model registration request] In a combine harvester in which a storage tank for storing grain is placed on one side in the left-right direction of the machine frame, and a threshing section for threshing stem culms is placed on the other side, the bottom plate of the storage tank is placed on one side of the machine body. The bottom plate of the tank is sloped so as to be as low as possible, and a spiral conveyor for transporting the stored grains in the front and back direction is arranged at the lower end of the slope that is offset to one side of the body. An internal space is provided between the section, the machine frame, and the threshing section, and the storage tank is swingable so that it can be laid down toward one side of the machine using the conveyance shaft of the spiral conveyance body as a fulcrum. When the storage tank is supported in a reclining position, the upper part of the internal space can be opened for inspection, and the bottom plate of the inclined storage tank is provided with a structure in which the upper part of the internal space can be opened and inspected when the storage tank is in the collapsed position. A foothold for inspection in a combine harvester, characterized in that a foothold for entering and exiting a worn-out internal space is provided, and the foothold is housed within the internal space formed by the surrounding area when the storage tank is in an upright position. structure.