Work vehicle

Abstract

A work vehicle includes an operation part 6 and a cabin covering the operation part 6. The cabin includes a windshield 73 and a visual recognition inhibition region 76 disposed on a surface of the windshield 73. The visual recognition inhibition region 76 is configured to make it difficult to visually recognize the inside of the cabin from the outside of the cabin, and to allow the outside of the cabin to be visually recognized from the inside of the cabin through the visual recognition inhibition region 76.

Description

Work vehicle

[0001] The present invention relates to a work vehicle.

[0002] Patent Document 1 discloses a sugarcane harvester equipped with a rear monitor located at the top center of the cabin on both sides, which displays images captured by a camera attached to a discharge conveyor.

[0003] JP 2017-99315 A

[0004] The devices disposed inside the cabin, such as the rearview monitor disclosed in Patent Document 1, face the driver's seat. That is, the rear portions of the devices and the harnesses connected to the devices are positioned facing the windshield. This makes the rear portions of the devices and the harnesses connected to the devices visible from outside the cabin through the windshield, which is unsightly.

[0005] An object of the present invention is to provide a work vehicle in which the interior of the cabin is difficult to see from the outside of the cabin.

[0006] The harvester of the present invention comprises a driving unit and a cabin covering the driving unit, and the cabin comprises a windshield and a visibility-obstructing portion arranged on the surface of the windshield, the visibility-obstructing portion making it difficult to see the inside of the cabin from outside the cabin and being configured so that the outside of the cabin can be seen from inside the cabin through the visibility-obstructing portion.

[0007] According to this configuration, the visibility-blocking portion makes it difficult to see the inside of the cabin from outside the cabin, making it difficult to see the rear portion of the equipment and the harnesses connected to the equipment from outside the cabin. This improves the aesthetics. Furthermore, because the field and the crops in the field can be seen through the visibility-blocking portion, the driver's workability is not adversely affected.

[0008] In the present invention, the visibility-blocking portion is preferably a group of opaque portions arranged at intervals.

[0009] According to this configuration, the opaque sections are spaced apart, so that the field, crops in the field, etc. can be seen by the distance between adjacent opaque sections, thereby preventing a decrease in workability for the driver.

[0010] In the present invention, it is preferable that the lower end of the visibility-blocking portion is located above the lower end of the windshield.

[0011] While the visibility-obstructing portion improves the aesthetic appearance of the work vehicle, the area where the visibility-obstructing portion is located makes it more difficult to see the situation outside the cabin from inside the cabin compared to areas where the visibility-obstructing portion is not located. With this configuration, the area where the visibility-obstructing portion is located is narrower than when the bottom edge of the visibility-obstructing portion is at the same height as the bottom edge of the windshield. This reduces the reduction in the driver's workability. In addition, the driver can more easily see the state of the field diagonally below from between the bottom edge of the visibility-obstructing portion and the bottom edge of the windshield.

[0012] In the present invention, the driver's section further includes a driver's seat and a side panel located on either the left or right side of the driver's seat, and it is preferable that the lower end of the visibility-obstructing portion is located above the upper surface of the side panel.

[0013] Within the cabin, more equipment is arranged on the side where the side panel is located than on the side where the side panel is not located. Furthermore, equipment arranged above the top surface of the side panel is at a height that makes it easy for the driver to see. According to this configuration, the visibility-blocking portion is arranged in a location where the equipment is likely to be located. This makes it difficult to see the rear portion of the equipment and the harnesses connected to the equipment from outside the cabin, improving the aesthetics.

[0014] Furthermore, compared to when the lower end of the visibility-impairing portion is located below the upper surface of the side panel, the area in which the visibility-impairing portion is located is narrower, which reduces the deterioration of the driver's workability.

[0015] In the present invention, it is preferable that the driver's section further includes a driver's seat, and the lower end of the visibility obstructing portion is located above a seating surface of the driver's seat.

[0016] The devices located above the driver's seat are at a height that makes them easy for the driver to see. With this configuration, the visibility-blocking portion is located in a location where the devices are likely to be located. This makes it difficult to see the rear portion of the devices and the harnesses connected to the devices from outside the cabin, improving the aesthetics.

[0017] Furthermore, compared to when the lower end of the visibility-obstructing portion is located below the seat surface of the driver's seat, the range in which the visibility-obstructing portion is located is narrower, thereby minimizing the deterioration of the driver's workability.

[0018] In the present invention, the driver's section further includes a driver's seat and a side panel located on either the left or right side of the driver's seat, and it is preferable that the visibility-obstructing portion be located at the end of the windshield on the side where the side panel is located.

[0019] In the cabin, more equipment is placed on the side where the side panel is located than on the side where the side panel is not located. With this configuration, the visibility-blocking portion is located in a location where the equipment is likely to be placed. This makes it difficult to see the rear portions of the equipment and the harnesses connected to the equipment from outside the cabin, improving the aesthetics.

[0020] In the present invention, the driving section further includes a display device located inside the cabin that displays the status of each part of the aircraft, the cabin includes a front pillar that supports the display device and extends in the vertical direction, and it is preferable that the visibility-obstructing portion is positioned in a position that overlaps with the display device when viewed from the front.

[0021] The display device is supported on the front pillar facing the windshield. Therefore, the harness connected to the display device is routed in a position facing the windshield. With this configuration, the visibility obstruction portion is positioned so as to overlap the display device in a front view, making it difficult to see the rear portion of the display device and the harness connected to the display device from outside the cabin. This improves the aesthetic appearance.

[0022] Fig. 2 is a left side view of the sugarcane harvester; Fig. 3 is a plan view of the sugarcane harvester; Fig. 4 is a horizontal cross-sectional view of the driving unit as seen from above; Fig. 5 is a vertical cross-sectional view of the driving unit as seen from behind; Fig. 6 is a rear view showing a visibility-blocking portion;

[0023] A sugarcane harvester, which is an example of a work vehicle according to the present invention, will be described below with reference to the drawings. In the following description, the direction of arrow F in the drawings will be referred to as the "front side," the direction of arrow B as the "rear side," the direction of arrow U as the "upper side," the direction of arrow D as the "lower side," the direction of arrow R as the "right side," and the direction of arrow L as the "left side."

[0024] 1 and 2 , the sugarcane harvester includes a body 1, a traveling device 2 that supports the body 1, a reaping unit 3 that reaps crops in a field, a transport device 4 that transports the crops reap by the reaping unit 3, a sorting device 5 that sorts the crops transported by the transport device 4 into harvested products and impurities using a sorting wind, a rear transport device 8 that transports the harvested products supplied from the sorting device 5 rearward and then discharges them to the outside, a driver's unit 6 in which a driver rides, a cabin 7 that covers the driver's unit 6, a topper 13 that cuts the top of the crops, and an engine E supported on the body 1. The topper 13 extends diagonally upward and forward from the front end of the body 1.

[0025] The traveling device 2 includes left and right front wheels 21 and left and right rear wheels 22 located rearward of the front wheels 21. The rear wheels 22 are supported by an axle case connected to the vehicle body 1. Power from the engine E is transmitted to the left and right rear wheels 22 via a transmission. In other words, the rear wheels 22 are driven by the engine E.

[0026] The reaping unit 3 includes a cutting blade 31 that cuts the crops, and left and right dividers 32 that separate the crops to be cut from the crops to be left in the field. The cutting blade 31 is suspended from the machine body 1. The cutting blade 31 has a drive shaft that extends in the vertical direction. The drive shaft is driven by a hydraulic motor. Driving the drive shaft causes the cutting blade 31 to rotate.

[0027] The front wheels 21 are supported on the aircraft body 1 so as to be movable up and down and steerable. Power from the engine E is not transmitted to the front wheels 21.

[0028] The transport device 4 is supported by the machine body 1 in a rear-upward tilted position. Specifically, the lower part of the transport device 4 is supported by the machine body 1. In addition, the rear part of the transport device 4 is supported by the machine body 1 via an axle case or a transmission located below the rear part of the transport device 4.

[0029] The front part of the conveying device 4 is connected to the rear part of the reaping unit 3. As a result, the crops cut by the reaping unit 3 are conveyed by the conveying device 4 diagonally upward and rearward from the machine body 1.

[0030] The sorting device 5 is connected to the rear of the conveying device 4. Crops shredded at the end of the conveying process of the conveying device 4 are supplied to the sorting device 5. The crops supplied from the conveying device 4 fall downward as they pass through the inside of the sorting device 5. Crops passing through the sorting device 5 are sorted by the sorting wind blowing impurities outside the machine body 1. The sorted harvested crops fall into a hopper 12 provided in front of the rear conveying device 8.

[0031] The hopper 12 has a semicircular shape in a plan view. The hopper 12 is provided so as to surround the front, right, and left parts of the inlet of the subsequent conveying device 8. The harvested product that falls from the sorting device 5 is received by the hopper 12 and guided to the inlet of the subsequent conveying device 8.

[0032] The rear conveying device 8 extends diagonally upward and rearward in a rear-upward tilted position. The rear conveying device 8 conveys the harvested product diagonally upward and rearward. The rear conveying device 8 can rotate around an axis A1 that extends in the vertical direction. The conveyed harvested product is discharged to the outside of the machine body 1 from a discharge area provided at the rear of the rear conveying device 8. Specifically, the rear conveying device 8 discharges the harvested product onto the loading platform of a transport vehicle traveling alongside the sugarcane harvester.

[0033] The sugarcane harvester is equipped with a camera 9. The camera 9 captures the harvested products stored in the hopper 12 within its imaging range. In this embodiment, the images captured by the camera 9 are still images. However, the captured images may also be moving images or videos that continuously display still images.

[0034] 3 and 4, the sugarcane harvester includes a cabin 7. The cabin 7 covers the top of the driver's section 6. The cabin 7 includes a roof portion 71 that covers the top of the driver's section 6, left and right front pillars 72 that support the roof portion 71 and extend in the vertical direction, a windshield 73 located between the left and right front pillars 72, an openable and closable side door 74 located behind the front pillars 72, a side glass 75 located behind the side door 74, a visibility-blocking portion 76 that is located on the surface of the windshield 73, and a protective member 77 that is located in front of the windshield 73 and protects the windshield 73.

[0035] The windshield 73 is supported by the left and right front pillars 72. The protection member 77 is made up of a plurality of rod-shaped members extending in the left-right direction and spaced apart in the up-down direction.

[0036] [Driver's Unit] As shown in Figures 3 and 4, the driver's unit 6 includes a driver's seat 61 located in the center of the driver's unit 6 from side to side, a steering post 62 located in front of the driver's seat 61 and having a steering handle, an accelerator pedal 63 provided on the floor surface to the side of the steering post 62, a side panel 64 located on either the left or right side of the driver's seat 61, and a display device 65 located inside the cabin 7 and displaying the status of each part of the aircraft 1.

[0037] A main shift lever 64a and various operation switches are provided on the upper surface of the side panel 64. In this embodiment, the side panel 64 is located on the right side of the driver's seat 61. However, the side panel 64 may be located on the left side of the driver's seat 61.

[0038] The display device 65 has multiple monitors. In this embodiment, the display device 65 has three monitors. Specifically, the display device 65 has the multiple monitors: a first monitor 65a, a second monitor 65b, and a third monitor 65c. However, the number of monitors is not limited to this, and may be any number.

[0039] The display device 65 is located toward the center of the fuselage 1 in the left-right direction relative to the front pillar 72. Specifically, the display device 65 is located on the left side of the right front pillar 72. However, the display device 65 may be located on the right side of the left front pillar 72. The display device 65 is supported by a support member 72a of the front pillar 72. The support member 72a extends along the front pillar 72.

[0040] The display screen of the display device 65 faces the driver's seat 61. In other words, the rear portion of the display device 65 faces the windshield 73 side.

[0041] The first monitor 65a, the second monitor 65b, and the third monitor 65c are arranged in a vertical line. Specifically, the first monitor 65a, the second monitor 65b, and the third monitor 65c are arranged in this order from the top. This makes it easier to check the status of the topper 13, which is located diagonally above and in front of the cabin 7, from inside the cabin 7, compared to a configuration in which the first monitor 65a, the second monitor 65b, and the third monitor 65c are provided at the top of the center of the left and right of the cabin 7.

[0042] 4, an imaginary line L1 is shown extending in the up-down direction through the center of the windshield 73. The display device 65 is located to one side of the line L1. In this embodiment, the first monitor 65a, the second monitor 65b, and the third monitor 65c overlap with the area of ​​the right edge of the windshield 73 in a front view.

[0043] The status of each part of the aircraft 1 displayed by the display device 65 includes the status of the aircraft 1 detected by various sensors installed on the aircraft 1, such as images captured by the camera 9 and the pressure status of the hydraulic oil detected by the load detection unit 11.

[0044] The harness connected to the display device 65 extends in the vertical direction along the support member 72a. The end of the harness on the display device 65 side extends from the support member 72a toward the display device 65 in the left-right direction of the aircraft body 1 and is connected to the rear of the display device 65. In other words, the end of the harness extends from the support member 72a toward the left-right center of the aircraft body 1. In other words, the end of the harness is arranged in a position visible from outside the cabin 7 when viewed from the front.

[0045] [Viewability-impairing portion] As shown in Figures 4 and 5, the viewability-impairing portion 76 is a rectangular region configured to make it difficult to view the interior of the cabin 7 from the outside of the cabin 7 and to allow the outside of the cabin 7 to be viewed from the inside of the cabin 7 through the viewability-impairing portion 76. The viewability-impairing portion 76 is a collection of opaque portions 76a arranged at intervals. In other words, the viewability-impairing portion 76 is arranged in a position where the opaque portion 76a and a transparent portion are adjacent to each other. In this embodiment, the opaque portion 76a is a circular region formed by ceramic print. However, the shape of the opaque portion 76a is not limited to this and may be a rectangular shape, another polygonal shape, or a striped shape.

[0046] The visibility obstructing portion 76 is disposed in a partial region of the windshield 73. Specifically, the visibility obstructing portion 76 is disposed in a position overlapping at least a portion of the display device 65 in a front view. In particular, the visibility obstructing portion 76 is preferably disposed in a position overlapping with an end of a harness extending from the support member 72a toward the display device 65 in a front view.

[0047] The color of the opaque portion 76a is the same as the color of the display device 65 and the harness. The color of the opaque portion 76a is different from the color of the field, the crops in the field, and the divider 32. In this embodiment, the opaque portion 76a is black. However, the color of the opaque portion 76a is not limited to this, and may be any other color as long as it is the same as the color of the display device 65 and the harness.

[0048] 4 shows an imaginary line L2 that extends in the left-right direction and passes through the upper end of the seat surface 61a of the driver's seat 61. The lower end of the visibility obstruction portion 76 is located above the lower end of the windshield 73. The lower end of the visibility obstruction portion 76 is also located above the line L2. In other words, the lower end of the visibility obstruction portion 76 is located above the seat surface 61a of the driver's seat 61.

[0049] 4 shows an imaginary line L3 that passes through the upper surface of the side panel 64 and extends in the left-right direction. The lower end of the visibility-blocking portion 76 is located above the line L3. In other words, the lower end of the visibility-blocking portion 76 is located above the upper surface of the side panel 64. The lower end of the visibility-blocking portion 76 is also located below the lower end of the display device 65. In this embodiment, the lower end of the visibility-blocking portion 76 is located at approximately the same height as the lower end of the display device 65.

[0050] The upper end of the visibility-blocking portion 76 is located below the upper end of the windshield 73. The upper end of the visibility-blocking portion 76 is also located above the upper end of the display device 65. In this embodiment, the upper end of the visibility-blocking portion 76 is located at approximately the same height as the upper end of the first monitor 65a. However, the upper end of the visibility-blocking portion 76 can be arbitrarily changed between the upper end of the display device 65 and the upper end of the windshield 73.

[0051] The display device 65 is disposed at one of the left and right ends of the windshield 73, at the end where the side panel 64 is located. In other words, the visibility obstruction portion 76 is disposed at one of the left and right ends of the windshield 73, at the end where the side panel 64 is located.

[0052] With the above configuration, the color of the opaque portion 76a is the same as the color of the display device 65 and the harness, so when workers in the field or the like view the inside of the cabin 7 from outside the cabin 7, the rear of the display device 65 and the harness are not noticeable due to the visibility-obstructing portion 76.

[0053] On the other hand, since the color of the opaque portion 76a is different from the color of the field, the crops in the field, and the divider 32, when a driver or the like looks at the outside of the cabin 7 from inside the cabin 7 through the visibility-obstructing portion 76, it is easier to identify the field, the crops in the field, and the divider 32 compared to when the color of the opaque portion 76a is the same color as the field, the crops in the field, and the divider 32.

[0054] [Other Embodiments] The present invention is not limited to the above-described embodiment. For example, the present invention may be configured as in the following other embodiments. In the other embodiments described below, the same components as those in the above-described embodiment are assigned the same numbers and symbols as those in the above-described embodiment.

[0055] [1] The first monitor 65a, the second monitor 65b, and the third monitor 65c may overlap the area of ​​the left end of the windshield 73 when viewed from the front. In this case, the display device 65 is disposed at one of the left and right ends of the windshield 73, the end opposite the side where the side panel 64 is located. Therefore, the visibility obstruction portion 76 may be disposed at one of the left and right ends of the windshield 73, the end opposite the side where the side panel 64 is located.

[0056] [2] The visibility-blocking portion 76 may be configured as a one-way mirror. The visibility-blocking portion 76 reflects incident light from the front of the windshield 73 (the front of the aircraft 1) and transmits incident light from the rear of the windshield 73 (the rear of the aircraft 1).

[0057] [3] In the above-described embodiment, the visibility-blocking portion 76 is a rectangular region. However, the visibility-blocking portion 76 may have other shapes. For example, the visibility-blocking portion 76 may be a circular or other polygonal region.

[0058] [4] In the above-described embodiment, the opaque portion 76a is formed of a ceramic print. However, the opaque portion 76a may be formed of a sticker attached to the surface of the windshield 73. The opaque portion 76a may also be formed of a metal plate-like member attached to the surface of the windshield 73.

[0059] [5] In the above-described embodiment, the visibility-blocking portion 76 is disposed at a position where the opaque portion 76a and a transparent portion are adjacent to each other. However, the visibility-blocking portion 76 may be disposed at a position where a translucent portion and a transparent portion are adjacent to each other.

[0060] [6] The lower end of the visibility-blocking portion 76 can be arbitrarily changed between the lower end of the display device 65 and the lower end of the windshield 73. For example, the lower end of the visibility-blocking portion 76 may be located below the upper surface of the side panel 64. Furthermore, the lower end of the visibility-blocking portion 76 may be located below the seat surface 61 a of the driver's seat 61.

[0061] [7] In the above embodiment, the harness is connected to the display device 65. However, the harness is not limited to this and may be connected to other devices in the cabin 7.

[0062] [8] In the above-described embodiment, the visibility-blocking portion 76 is disposed at a position overlapping the display device 65 in a front view. However, the visibility-blocking portion 76 may be disposed at a position overlapping other equipment in the cabin 7 in a front view.

[0063] [9] The sugarcane harvester does not need to be equipped with a post-conveying device 8. In this case, the harvested product sorted by the sorting device 5 is discharged into a harvested product storage bag or the like.

[0064]

[10] The traveling device 2 may be a crawler type device.

[0065]

[11] In the above-described embodiment, a sugarcane harvester is shown as an example of a work vehicle. However, the work vehicle is not limited to this, and may be applied to combine harvesters, tractors, rice transplanters, paddy field direct seeding machines, corn harvesters, potato harvesters, carrot harvesters, construction machines, etc.

[0066]

[12] The configurations disclosed in the above-described embodiments (including other embodiments, the same applies below) can be applied in combination with configurations disclosed in other embodiments, unless a contradiction arises. Furthermore, the embodiments disclosed in this specification are merely examples, and the embodiments of the present invention are not limited thereto and can be appropriately modified within the scope of the purpose of the present invention.

[0067] The present invention can be applied to a work vehicle.

[0068] 1: Aircraft body 6: Driver's section 61: Driver's seat 61a: Seat surface 64: Side panel 65: Display device 7: Cabin 72: Front pillar 73: Windshield 76: Visibility-obstructing portion 76a: Opaque portion

Claims

1. A work vehicle comprising: a driving section; and a cabin covering the driving section, wherein the cabin comprises: a windshield; and a visibility-obstructing portion disposed on the surface of the windshield, wherein the visibility-obstructing portion makes it difficult to see the inside of the cabin from outside the cabin, and is configured so that the outside of the cabin can be seen from inside the cabin through the visibility-obstructing portion.

2. A work vehicle as described in claim 1, wherein the visibility-blocking portion is a group of opaque portions spaced apart.

3. A work vehicle as described in claim 1 or 2, wherein the lower end of the visibility-obstructing portion is located above the lower end of the windshield.

4. A work vehicle as described in any one of claims 1 to 3, wherein the driver's section further comprises a driver's seat and a side panel located on either the left or right side of the driver's seat, and the lower end of the visibility-obstructing portion is located above the upper surface of the side panel.

5. A work vehicle as described in any one of claims 1 to 4, wherein the driving section further comprises a driver's seat, and the lower end of the visibility-obstructing portion is located above the seat surface of the driver's seat.

6. A work vehicle as described in any one of claims 1 to 5, wherein the upper end of the visibility-obstructing portion is located below the upper end of the windshield.

7. A work vehicle as described in any one of claims 1 to 6, wherein the driver's section further comprises a driver's seat and a side panel located on either the left or right side of the driver's seat, and the visibility-obstructing portion is located at the end of the windshield on the side where the side panel is located, out of the left and right ends.

8. A work vehicle as described in any one of claims 1 to 7, wherein the driving section further comprises a display device located inside the cabin and displaying the status of each part of the vehicle, the cabin comprises a front pillar supporting the display device and extending in the vertical direction, and the visibility-obstructing portion is positioned in a position overlapping the display device when viewed from the front.

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