JP7466441B2 - Work vehicles - Google Patents

Description

The present invention relates to a work vehicle.

For example, in a combine harvester, the harvesting device is located at the front, and the main frame is provided behind the harvesting device. A cabin housing the driver's seat, operating levers, operating pedals, etc. is supported on the front end of the main frame.

JP 2005-59750 A

A variety of parts, such as antennas, rear-view mirrors, and handles, are attached to the exterior of the cabin. Mounting holes are formed in the cabin for the attachment of each part, but these mounting holes are dedicated to each part and are not shared for the attachment of other parts.

The object of the present invention is to provide a work vehicle in which mounting holes formed on the exterior surface can be effectively used for multiple parts.

To achieve the above object, the work vehicle according to the present invention has a painted exterior surface, mounting holes for attaching parts from the outside are formed in the exterior surface, and unpainted areas are provided around the mounting holes.

According to this configuration, mounting holes are formed in the painted exterior surface of the work vehicle for attaching parts from the outside. The mounting holes are surrounded by unpainted areas that are not painted.

For example, the cabin is assembled separately and then mounted on the main frame. When mounting, the cabin is lifted by a crane or the like. Therefore, when mounting the cabin, a lifting device to which a sling can be attached is required, but after mounting, the lifting device is no longer needed. If the painted exterior surface is the exterior surface of the cabin, the mounting hole formed in that exterior surface can be used to attach the lifting device. Also, if the mounting device is removed from the mounting hole after mounting of the cabin, the mounting hole can be used to mount other parts.

In addition, by attaching a part to the mounting hole, the mounting hole can be hidden by the part, improving the appearance of the cabin.

Since there is an unpainted area around the mounting hole, if you attach an electrical component to the mounting hole, you can easily earth the electrical component by electrically connecting it to the unpainted area. Therefore, the mounting hole can be used particularly effectively after the hanging device is removed.

The work vehicle may be equipped with a stay that can be detachably attached to the mounting hole and an antenna supported by the stay.

In this configuration, the antenna can be earthed by electrically connecting it to the unpainted part.

Also, if the stay is made of metal, the antenna can be electrically connected to the unpainted part without using a ground wire by contacting the stay with the unpainted part.

According to the present invention, the mounting holes formed on the outer surface can be effectively used for multiple parts.

FIG. 2 is a right side view of a combine harvester according to one embodiment of the present invention. FIG. 1 is a perspective view of the right rear upper end portion of the cabin as viewed from the right rear. FIG. FIG. 11 is a perspective view of the right rear upper end portion of the cabin as viewed from the right rear, with the radio antenna and antenna stay removed. FIG. 1 is a perspective view of the left rear upper end portion of the cabin as viewed from the left rear. FIG. FIG. 13 is a perspective view of the left rear upper end portion of the cabin as viewed from the left rear, with the cover removed. FIG. 4 is a perspective view showing a corner portion formed by butting a first steel plate and a second steel plate together.

The following describes in detail an embodiment of the present invention with reference to the attached drawings.

<Overall configuration of the combine>
Fig. 1 is a right side view of a combine harvester 1 according to an embodiment of the present invention. Fig. 2 is a plan view of the combine harvester 1.

The combine 1 is an example of a harvester that cuts and threshes culms while traveling through a field.

As shown in FIG. 1, the combine harvester 1 has a main frame 2, which is a structure made by combining multiple steel materials. The combine harvester 1 also employs a pair of left and right crawlers 3 as a traveling device capable of traveling over uneven ground such as farm fields. The main frame 2 is supported by the pair of left and right crawlers 3.

The crawler 3 is provided with a drive sprocket 4 as a drive wheel. An axle 5 is connected to the drive sprocket 4 so that it cannot rotate relative to the axle. Engine power is transmitted to the axle 5 via a power transmission mechanism. The engine is a diesel engine with an exhaust turbine supercharger. The power transmission mechanism includes, for example, an HST (Hydro Static Transmission) and a gear mechanism. The engine and power transmission mechanism are supported by the main frame 2. The power transmission mechanism is located in the center of the front end of the main frame 2 in the left-right direction (vehicle width direction), and the engine is located behind the power transmission mechanism, protruding to the right of the power transmission mechanism.

A harvesting device 11 is provided in front of the main frame 2, at the very front of the combine harvester 1. As the combine harvester 1 moves forward, the harvesting device 11 harvests the culms planted in the field.

The main frame 2 supports the threshing device 12, cabin 13 and grain tank 14.

As shown in FIG. 2, the threshing device 12 is disposed on the left portion of the main frame 2. The threshing device 12 transports the base side of the culms harvested by the harvesting device 11 rearward using a threshing feed chain, and supplies the tip side of the culms to the threshing chamber for threshing.

The cabin 13 is disposed on the front end of the main frame 2, toward the right side. The cabin 13 provides a space for the driver inside, and within this space, for example, a driver's seat where the driver sits, and operating members such as operating levers and operating pedals are disposed. As shown in FIG. 1, a bottom plate portion 15 that provides the floor of the cabin 13 is spaced upward from the right front end of the main frame 2, to the right of the power transmission mechanism. The portion of the cabin 13 to the left of the bottom plate portion 15 protrudes above the power transmission mechanism, and the rear protrudes above the engine.

The right side of the cabin 13 is formed with an entrance/exit 16, and a door 17 is provided for opening and closing the entrance/exit 16. The operator of the combine 1 (the person performing the harvesting work) can open the door 17 and get on and off the cabin 13 through the entrance/exit 16.

The grain tank 14 is disposed behind the cabin 13 with a gap between it and the cabin 13. The grain tank 14 provides a space inside in which rice husks (grain) can be stored. The rice husks removed from the stalks by the threshing device 12 are transported to the grain tank 14 and stored therein. An unloader 18 is connected to the grain tank 14, and the rice stored in the grain tank 14 can be removed by the unloader 18 and discharged outside the machine.

<Radio Antenna>
FIG. 3 is a perspective view of the right rear upper end portion of the cabin 13 as viewed from the right rear.

The cabin 13 is provided with a pillar 21 extending along the rear edge of the entrance 16 behind the entrance 16. A radio antenna 22 for receiving radio waves is attached to the upper end of the pillar 21. Specifically, the radio antenna 22 is supported by a metal antenna stay 23, and is attached to the pillar 21 by fixing the antenna stay 23 to the pillar 21 with two bolts 24.

Figure 4 is an oblique view of the right rear upper end of the cabin 13 seen from the right rear, showing the radio antenna 22 and antenna stay 23 removed.

When the two bolts 24 are removed and the radio antenna 22 and antenna stay 23 are removed, the two mounting holes 25 into which the two bolts 24 were respectively screwed are exposed.

Figure 5 shows an enlarged view of the mounting hole 25.

The surface of the pillar 21 is painted, but an unpainted annular area 26 is provided around the mounting hole 25 along the periphery of the mounting hole 25.

In the manufacturing process of the combine harvester 1, the cabin 13 is assembled separately and then mounted on the main frame 2. When mounting the cabin 13, it is necessary to lift the cabin 13 with a crane or the like. For this reason, the cabin 13 is formed with a mounting hole 25 for attaching a hoisting device to which a sling is attached, and the hoisting device is attached to the mounting hole 25. Then, with the hoisting device attached to the mounting hole 25, the exterior surface of the cabin 13 is painted, and the cabin 13 is then mounted on the main frame 2.

After the cabin 13 is mounted on the main frame 2, the hoisting tool is no longer necessary. Therefore, after the cabin 13 is mounted, the hoisting tool that is no longer necessary is removed from the mounting hole 25. Since the exterior surface of the cabin 13 is painted with the hoisting tool attached to the mounting hole 25, when the hoisting tool is removed, the mounting hole 25 and the unpainted area 26 around the mounting hole 25 are exposed. This results in a poor appearance (looking) of the cabin 13.

The antenna stay 23 that supports the radio antenna 22 is attached using the mounting hole 25 where the hanging device was attached.

<Cover>
FIG. 6 is a perspective view of the left rear upper end portion of the cabin 13 as viewed from the left rear.

A cover 31 is attached to the left side of the cabin 13 to hide the view. The cover 31 is attached to the cabin 13 with two bolts 32.

Figure 7 is a perspective view of the upper left rear end of the cabin 13 from the rear left, showing the state in which the cover 31 has been removed.

When the two bolts 32 are removed and the cover 31 is removed, the two mounting holes 33 into which the two bolts 32 were screwed are exposed. The left side of the cabin 13 is painted, but around the mounting holes 33, an unpainted annular area 34 is set along the periphery of the mounting holes 33.

Figure 8 is an oblique view showing the corner 43 formed by butting the first steel plate 41 and the second steel plate 42 together.

The combine harvester 1 has a portion where the first steel plate 41 and the second steel plate 42 are butted together to form a corner 43. At the corner 43, the first steel plate 41 extends from one side of the second steel plate 42 beyond the edge of the second steel plate 42 to the other side, with an end 44 of the first steel plate 41 protruding onto the other side of the second steel plate 42. The gap between the first steel plate 41 and the second steel plate 42 is caulked by filling the gap between them with caulking agent 45 so as to straddle the end 44 of the first steel plate 41 and the second steel plate 42.

<Action and effect>
As described above, the pillar 21, the outer surface of which is painted, is formed with the mounting hole 25 for mounting a component from the outside. The unpainted portion 26, which is not painted, is set around the mounting hole 25. Therefore, when the metal antenna stay 23 is attached to the mounting hole 25, the antenna stay 23 comes into contact with the unpainted portion 26, and the antenna stay 23 is electrically connected to the unpainted portion 26. Therefore, the antenna stay 23 can be connected to the earth without using an earth wire. As a result, the radio antenna 22 supported by the antenna stay 23 can be easily earthed. Therefore, the mounting hole 25 can be effectively used after the hanging tool is removed. In addition, by attaching the antenna stay 23 to the mounting hole 25, the mounting hole 25 can be hidden by the antenna stay 23, and the external appearance (appearance) of the cabin 13 can be improved.

<Modification>
Although the embodiment of the present invention has been described above, the present invention can be embodied in other forms.

For example, in the above embodiment, a combine harvester 1 equipped with a harvesting device 11 and a threshing device 12 as working devices was given as an example of a work vehicle, but the present invention can be applied to various work vehicles, such as a harvester equipped with a harvesting and transporting device as a working device for harvesting and transporting vegetables such as carrots, radishes, green soybeans, and cabbage, a rice transplanter equipped with a seedling planting device as a working device, a direct seeding machine equipped with a sowing device as a working device, a tractor equipped with a plow as a working device, and a construction work vehicle equipped with a bucket as a working device.

In addition, various design modifications can be made to the above-mentioned configuration within the scope of the claims.

1. Combine (work vehicle)
21: Pillar 22: Radio antenna (antenna)
23: Antenna stay (stay)
25, 33: Mounting holes 26, 34: Unpainted parts

Claims (5)

Equipped with a cabin,
The cabin is provided with a pillar extending in a vertical direction,
the pillar has a painted exterior surface;
At the upper end of the pillar, a mounting hole for mounting a part from the outside is formed in the outer surface,
A work vehicle, wherein the outer surface has an unpainted portion around the mounting hole that is not painted. A stay that is detachably attached to the mounting hole;
The work vehicle according to claim 1 , further comprising: an antenna supported by the stay. The work vehicle according to claim 2, wherein the stay is made of metal. Further comprising a main frame;
The cabin is mounted on the main frame and supported by the main frame,
The work vehicle according to any one of claims 1 to 3, wherein the mounting holes are holes for attaching a lifting tool used to lift the cabin when mounting the cabin on the main frame. The work vehicle according to claim 4 , wherein the unpainted portion has a shape corresponding to a contact portion between the hoisting tool and the outer surface.

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