combine

Abstract

We propose a combine harvester that allows the operator to visually check the storage status of grain stored in the hopper through the rear window of the cabin. [Solution] A rear window (20) is provided on the rear wall of the cabin (8) that covers the control unit (5). The hopper (7) is formed from a rectangular parallelepiped tank section (10) and an inverted pyramidal funnel section (11) below the tank section (10). An elevator (9) is provided between the threshing device (4) and the hopper (7) to lift the grain that has been threshed and sorted by the threshing device (4) into the hopper (7). A discharge section (30) for discharging the grain is provided at the top of the elevator (9). In a rear view, the discharge port (31) of the discharge section (30) is positioned to overlap with the rear window (20) in the left-right direction.

Description

Technical Field

[0001] The present invention relates to a combine harvester provided with a hopper for storing threshed and sorted grains.

Background Art

[0002] Conventionally, a technique has been proposed in which the operator's cab is covered, and a hopper for storing threshed and sorted grains is provided on the rear side of the cab.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the technique of Patent Document 1, the operator cannot visually recognize the storage state of the grains stored in the hopper through the rear window of the cab. Therefore, the operator needs to get off the vehicle from the operator's cab to confirm that the grains are stored in the hopper without bias, resulting in a problem of reduced work efficiency.

[0005] Therefore, an object of the present invention is to propose a combine harvester that allows an operator to visually recognize the storage state of grains stored in a hopper through a rear window of a cab.

Means for Solving the Problems

[0006] The present invention that solves the above problems is as follows. That is, in the invention according to claim 1, a threshing device (4) is provided on the left side of the machine body frame (1), a control unit (5) is provided on the right side of the threshing device (4), and a hopper (7) for storing grains is provided on the rear side of the control unit (5) in a combine harvester. The combine harvester is characterized in that a rear window (20) is provided in the rear wall of the cabin (8) that covers the control unit (5), the hopper (7) is formed from a rectangular parallelepiped tank section (10) and an inverted pyramidal funnel section (11) below the tank section (10), an elevator (9) is provided between the threshing device (4) and the hopper (7) to lift the grain that has been threshed and sorted by the threshing device (4) into the hopper (7), a discharge section (30) for discharging the grain is provided above the elevator (9), and in a rear view, the discharge port (31) of the discharge section (30) is positioned to overlap with the rear window (20) in the left-right direction.

[0007] The invention described in claim 2 is the combine harvester according to claim 1, wherein, in a rear view, the discharge port (31) is positioned below the lower part of the rear window (20).

[0008] The invention described in claim 3 is the combine harvester according to claim 2, wherein, in a rear view, the opening of the tank section (10) is positioned below the lower part of the rear window (20).

[0009] The invention described in claim 4 is a combine harvester according to claim 3, wherein the discharge section (30) is formed by a front plate (30A), a rear plate (30B), a lower plate (30C) connected to the lower parts of the front plate (30A) and the rear plate (30B), and an upper plate (30D) connected to the lower parts of the front plate (30A) and the rear plate (30B), the outer periphery of the discharge port (31) is formed by the front plate (30A), the rear plate (30B), the lower parts of the front plate (30A) and the rear plate (30B), and the upper plate (30D) is made of a transparent material.

[0010] The invention described in claim 5 is a combine harvester according to claim 3, wherein the discharge section (30) is formed by a front plate (30A), a rear plate (30B), a lower plate (30C) connected to the lower parts of the front plate (30A) and the rear plate (30B), and an upper plate (30D) connected to the lower parts of the front plate (30A) and the rear plate (30B), the outer periphery of the discharge port (31) is formed by the front plate (30A), the rear plate (30B), the lower parts of the front plate (30A) and the rear plate (30B), a plurality of openings are formed in the upper plate (30D), and the openings are covered with a transparent member.

[0011] The invention described in claim 6 is a combine harvester according to claim 4 or 5, wherein the lower plate (30C) is formed to be downward sloping to the right, and the upper plate (30D) is formed to be downward sloping to the right more gently than the lower plate (30C). [Effects of the Invention]

[0012] According to the invention described in claim 1, a rear window (20) is provided in the rear wall of the cabin (8) that covers the control unit (5), the hopper (7) is formed from a rectangular parallelepiped tank section (10) and an inverted pyramidal funnel section (11) below the tank section (10), an elevator (9) is provided between the threshing device (4) and the hopper (7) to lift the grain that has been threshed and sorted by the threshing device (4) into the hopper (7), a discharge section (30) for discharging the grain is provided at the top of the elevator (9), and in a rear view, the discharge port (31) of the discharge section (30) is positioned to overlap with the rear window (20) in the left-right direction, so that the operator can easily see the state of the grain being discharged from the discharge port (31) and the state of the grain being stored in the tank section (10) from the rear window (20) of the cabin (8), thereby improving work efficiency.

[0013] According to the invention described in claim 2, in addition to the effects of the invention described in claim 1, the discharge port (31) is positioned below the bottom of the rear window (20) when viewed from the rear, so that the worker can more easily see the discharge state of the grain being discharged from the discharge port (31).

[0014] According to the invention described in claim 3, in addition to the effects of the invention described in claim 2, the opening of the tank section (10) is positioned below the lower part of the rear window (20) when viewed from the rear, so that the worker can more easily see the state of the stored grain in the tank section (10).

[0015] According to the invention of claim 4, in addition to the effects of the invention of claim 3, the discharge section (30) is formed of a front plate (30A), a rear plate (30B), a lower plate (30C) connected to the lower parts of the front plate (30A) and the rear plate (30B), and an upper plate (30D) connected to the lower parts of the front plate (30A) and the rear plate (30B). The outer periphery of the discharge port (31) is formed of the front plate (30A), the rear plate (30B), the lower parts of the front plate (30A) and the rear plate (30B), and the upper plate (30D) is made of a transparent material. As a result, the operator can easily visually observe the discharge state of the grain passing through the discharge section (30).

[0016] According to the invention of claim 5, in addition to the effects of the invention of claim 3, the discharge section (30) is formed by a front plate (30A), a rear plate (30B), a lower plate (30C) connected to the lower parts of the front plate (30A) and the rear plate (30B), and an upper plate (30D) connected to the lower parts of the front plate (30A) and the rear plate (30B). The outer periphery of the discharge port (31) is formed by the front plate (30A), the rear plate (30B), the lower parts of the front plate (30A) and the rear plate (30B), and a plurality of openings are formed in the upper plate (30D), and the openings are covered with a transparent member, so that the worker can easily see the discharge state of the grain passing through the discharge section (30).

[0017] According to the invention described in claim 6, in addition to the effects of the invention described in claim 4 or 5, the lower plate (30C) is formed to slope downward to the right, and the upper plate (30D) is formed to slope downward to the right more gently than the lower plate (30C), so that the grain lifted by the elevator (9) is smoothly discharged along the upper plate (30D) into the tank section (10), thereby suppressing damage to the outer husk of the grain. [Brief explanation of the drawing]

[0018] [Figure 1] This is a front view of a combine harvester. [Figure 2] This is a right side view of a combine harvester. [Figure 3] This is a left side view of a combine harvester. [Figure 4] This is a rear view of the combine harvester. [Figure 5] This is a perspective view illustrating the top lid of the hopper tank. [Figure 6] It is a perspective view explaining the discharge part of the elevator. [Figure 7] It is a rear view explaining the discharge part of the elevator. [Figure 8] It is a plan view explaining the discharge part of the elevator. [Figure 9] It is a right side view explaining the muffler and the fuel tank. [Figure 10] It is a perspective view explaining the pitching cylinder and the rolling cylinder.

Embodiments for Carrying out the Invention

[0019] As shown in FIGS. 1 to 4, the general-purpose combine harvester is provided with a traveling device 2 composed of a pair of left and right crawlers that travel on the soil surface below the body frame 1, and a pre-cutting treatment device 3 for harvesting the cereal straw in the field is provided in front of the body frame 1. A threshing device 4 for threshing and sorting the harvested cereal straw is provided on the left rear side of the pre-cutting treatment device 3, and a cab 5 for an operator to board is provided on the right rear side of the pre-cutting treatment device 3.

[0020] An engine room 6 housing the engine E is provided below the cab 5, and a hopper 7 for storing grains such as rapeseed oil that have been threshed and sorted is provided behind the cab 5.

[0021] The pre-cutting treatment device 3 includes a scraping-in device 3A that conveys the cereal straw in the field to the rear while standing it up, a cutting blade device 3B that cuts the roots of the cereal straw conveyed to the lower rear part of the scraping-in device 3A, an auger device 3C that gathers the cereal straw conveyed to the rear side of the scraping-in device 3A to the left side, and a feeder house 3D that conveys the gathered cereal straw to the threshing device 4.

[0022] Further, the cab 5 is covered with a cabin 8, and the grains threshed and sorted by the threshing device 4 are conveyed to the hopper 7 by an elevator 9. Note that the lower part of the elevator 9 is connected to the left wall of the threshing device 4, the upper part of the elevator 9 is connected to the left wall of the hopper 7, and the upper end part of the elevator 9 extends above the air duct at the upper part of the cabin 8.

[0023] The hopper 7 is formed from a rectangular parallelepiped tank section 10 with its longitudinal direction aligned in the front-to-back direction, and an inverted pyramidal funnel section 11 at the bottom of the tank section 10. A cylindrical discharge pipe (not shown) extending downward is provided at the bottom of the funnel section 11. Two funnel sections 11 are arranged side by side in the front-to-back direction on the underside of the tank section 10.

[0024] The open top of the tank section 10 is covered by a top lid 12 that is movable in the left-right direction, a plate-shaped closure member 13 is provided at the bottom of the funnel section 11 that is supported so as to be slidable in the left-right direction, and a bag support 14 is provided at the bottom of the discharge pipe for suspending a grain bag that stores the grain leaking out of the discharge pipe. As a result, when storing grain in the hopper 7, the closure member 13 is moved to the left to close the bottom of the funnel section 11 and store the grain, and when leaking the grain stored in the hopper 7 into the grain bag, the closure member 13 is moved to the right to open the bottom of the funnel section 11 and leak the grain into the grain bag.

[0025] As shown in Figure 5, a rear window 20 is provided in the middle of the rear of the cabin 8 in the left-right direction. This allows the worker to easily see above and behind the cabin 8.

[0026] A discharge section 30 is formed at the top of the right wall of the elevator 9, which discharges the grain lifted by the elevator 9 into the hopper 7. When discharging the grain into the hopper 7 via the discharge section 30, the top lid 12 of the tank section 10 is moved to the right to open the top of the tank section 10. This allows the worker to easily see the state of the grain stored in the tank section 10 through the rear window 20.

[0027] As shown in Figures 6-8, the discharge section 30 is formed by a front plate 30A, a rear plate 30B, a lower plate 30C connecting the lower parts of the front plate 30A and the rear plate 30B, and an upper plate 30D connecting the upper parts of the front plate 30A and the rear plate 30B. The discharge port 31 of the discharge section 30 is demarcated by the lower ends of the front plate 30A and the rear plate 30B, and the right end of the lower plate 30C and the upper plate 30D.

[0028] In a rear view, the lower plate 30C is formed with a downward slope to the right, and the upper plate 30D is formed with a gentler downward slope to the right than the lower plate 30C. This allows the grains lifted by the elevator 9 to be smoothly discharged along the upper plate into the tank section 10, thereby preventing damage to the outer husk of the grains.

[0029] In a rear view, the upper end of the tank section 10 and the discharge port 31 of the discharge section 30 are positioned below the lower end of the rear window 20, while the upper end of the tank section 10 and the discharge port 31 of the discharge section 30 are positioned at the same height. This allows the operator to easily visually check the state of grain storage in the tank section 10 and the state of grain discharge from the discharge section 30 through the rear window 20.

[0030] It is preferable to position the center of the discharge port 31 in the left-right direction to the right of the left end of the rear window 20. This allows the operator to more easily observe the state of grain storage in the tank section 10 and the state of grain discharge from the discharge section 30 through the rear window 20.

[0031] It is preferable to form multiple openings in the upper plate 30D of the discharge section 30 and cover these openings with transparent acrylic resin or a transparent resin sheet. This allows the operator to more easily observe the state of grain storage in the tank section 10 and the state of grain discharge from the discharge section 30 through the rear window 20.

[0032] Reference numeral 16 indicates a rectangular carrier whose longitudinal direction is aligned with the front-to-back direction on which a worker sits when suspending grain bags, and reference numeral 17 indicates a urethane backrest that supports the worker's back.

[0033] As shown in Figure 9, a pivot point 41 for an arm 40 that suppresses the tilting of the combine harvester in the front-rear direction is provided on the lower side of the lower part of the elevator 9. Also, the rear end of a muffler 45 that discharges exhaust gas burned by the engine E to the outside is located on the lower side of the lower part of the elevator 9 and in front of the pivot point 41. This prevents interference between the elevator 9 and the muffler 45, making the space formed between the threshing device 4 and the hopper 7 more compact.

[0034] A fuel tank 48 for storing diesel fuel supplied to the engine E is located at the rear of the aircraft frame 1. The front upper part of the fuel tank 48 is formed in an upward sloping manner parallel to the rear lower part of the housing 4A that covers the rear of the oscillating sorting device of the threshing device 4. This allows a large-capacity fuel tank 48 to be placed in the space formed below the rear of the threshing device 4.

[0035] As shown in Figure 10, a pair of rolling cylinders 42 are connected to the front of a pair of left and right arms 40 to suppress the lateral tilt of the combine harvester, and the lateral tilt is corrected by changing the vertical height of the left and right travel devices 2, respectively. A pitching cylinder 43 is connected to the rear of the right arm 40 to suppress the longitudinal tilt of the combine harvester, and the longitudinal tilt of the machine is corrected by simultaneously changing the height of the rear sides of the left and right travel devices 2. [Explanation of symbols]

[0036] 1. Aircraft frame 4. Threshing machine 5. Control Unit 7 Hoppa 8 cabins 9 Elevator 10 Tank section 11 Funnel part 20 Rear window 30 Discharge section 30A Front Panel 30B rear plate 30C lower plate 30D top plate 31 Outlet

Claims

1. In a combine harvester, a threshing device (4) is provided on the left side of the machine frame (1), a control unit (5) is provided to the right of the threshing device (4), and a hopper (7) for storing grain is provided behind the control unit (5), A rear window (20) is provided in the rear wall of the cabin (8) that covers the control unit (5). The hopper (7) is formed by a rectangular parallelepiped tank section (10) and an inverted pyramidal funnel section (11) located below the tank section (10). An elevator (9) is provided between the threshing device (4) and the hopper (7) to lift the grains that have been threshed and sorted by the threshing device (4) into the hopper (7). An outlet (30) for discharging grain is provided at the top of the elevator (9). A combine harvester characterized in that, when viewed from the rear, the discharge port (31) of the discharge section (30) is positioned to overlap with the rear window (20) in the left-right direction.

2. The combine harvester according to claim 1, wherein, in a rear view, the discharge port (31) is positioned below the lower part of the rear window (20).

3. The combine harvester according to claim 2, wherein, in a rear view, the opening of the tank section (10) is positioned below the lower part of the rear window (20).

4. The discharge section (30) is formed by a front plate (30A), a rear plate (30B), a lower plate (30C) connected to the lower parts of the front plate (30A) and the rear plate (30B), and an upper plate (30D) connected to the lower parts of the front plate (30A) and the rear plate (30B). The outer periphery of the discharge port (31) is formed by a front plate (30A), a rear plate (30B), and the lower part of the front plate (30A) and the rear plate (30B). The combine harvester according to claim 3, wherein the upper plate (30D) is formed of a transparent material.

5. The discharge section (30) is formed by a front plate (30A), a rear plate (30B), a lower plate (30C) connected to the lower parts of the front plate (30A) and the rear plate (30B), and an upper plate (30D) connected to the lower parts of the front plate (30A) and the rear plate (30B). The outer periphery of the discharge port (31) is formed by a front plate (30A), a rear plate (30B), and the lower part of the front plate (30A) and the rear plate (30B). The combine harvester according to claim 3, wherein a plurality of openings are formed in the upper plate (30D) and the openings are covered with a transparent member.

6. The combine harvester according to claim 4 or 5, wherein the lower plate (30C) is formed to slope downward to the right, and the upper plate (30D) is formed to slope downward to the right more gently than the lower plate (30C).

Images