Harvester

Abstract

The present invention aims to take measures to prevent the human body from entering the space between the harvesting section and the driving section. The harvester of the present invention has a harvesting section (3) that harvests crops in a farmland, a carrying section (4) that carries the harvested crops toward the rear of the machine body, a threshing device that performs a threshing process on the harvested crops carried by the carrying section (4), and a driving section (6) that is provided at the rear of the harvesting section (3). A protruding section (20) provided between the harvesting section (3) and the position of the machine body outside the driving section (6) has an upper section (21) that extends cantilevered from the driving section (6) toward the harvesting section (3), and a lower section (22) that extends cantilevered from a position lower than the mounting position of the upper section (21) in the driving section (6) toward the harvesting section (3), and the upper section (21) and the lower section (22) are separated in the vertical direction as they move away from the driving section (6).

Description

Technical Field

[0001] The present invention relates to a harvester that transports all the crops harvested by the harvesting section at the front of the machine to the threshing unit at the rear via a conveying device for threshing. Background Technology

[0002] This type of harvester has a driving section located behind the harvesting section at the front of the machine body. The harvesting section is supported in a way that allows for changing the harvesting height of the crop and can swing up and down relative to the machine body. As a result, in order to prevent the harvesting section and the driving section from interfering with each other, a space with a gap along the longitudinal direction of the machine body is formed between them.

[0003] However, the interior of the aforementioned space often contains important devices such as power transmission mechanisms that transmit power from the power unit to various parts of the machine. If these devices are easily accessible to the human body, they may cause malfunctions. Summary of the Invention

[0004] (The problem this invention aims to solve)

[0005] Therefore, it is hoped that measures will be taken to prevent people from accidentally entering the space between the harvesting section and the driving section.

[0006] (Solution to the problem)

[0007] The harvester of the present invention is characterized by comprising: a harvesting section, which is horizontally elongated along the left-right direction of the machine body and is located at the front of the machine body for harvesting crops in farmland; a conveying section, which is connected to the middle part of the machine body in the left-right direction at the rear of the harvesting section and is capable of swinging up and down with the rear end as a fulcrum to receive the harvested crops harvested by the harvesting section and convey the input harvested crops to the rear of the machine body; a threshing device, which receives the whole stalks of harvested crops conveyed by the conveying section and performs threshing processing on the harvested crops; and a driving section, which is located at the rear of the harvesting section and has a protrusion between the harvesting section and the driving section on the outer side of the machine body. The protrusion has: an upper component that extends cantileveredly from the driving section to the harvesting section; and a lower component that extends cantileveredly from a position lower than the mounting position of the upper component on the driving section to the harvesting section. The upper component and the lower component are more separated in the vertical direction as they are further away from the driving section.

[0008] Because the protrusion is located between the outer side of the harvesting section and the driving section, it is difficult for a person on the outside of the machine to enter the space between the harvesting section and the driving section. Furthermore, the upper and lower components of the protrusion are only slightly separated vertically near the driving section, allowing for compact installation. On the other hand, the vertical separation between the upper and lower components increases as one moves closer to the harvesting section from the driving section, thus preventing passage over a larger vertical range. As a result, the risk of a person accidentally entering the space between the harvesting section and the driving section is reduced.

[0009] In this invention, preferably, the upper component and the lower component are in a rearward and downward tilted posture.

[0010] According to this structure, the upper and lower components are lower towards the rear (driver's side) and higher towards the front (harvesting side). In the case of harvesters, straw and other debris sometimes scatter during harvesting. Even if such straw falls onto the upper and lower components, because the upper and lower components are tilted downwards and backwards, the straw easily moves backwards and falls off. Furthermore, even if the tips of unharvested ears of straw tilt inwards towards the machine body, they are easily caught and guided at a higher position on the front side of the upper and lower components.

[0011] In this invention, preferably, the upper component and the lower component are made of tubular material, and the rear ends of the upper component and the lower component are open.

[0012] According to this structure, since the upper and lower components are made of tubing, it is easy to achieve lightweight design, low cost, and easy processing. Furthermore, even if rainwater enters the interior of the tubing, the rainwater can be discharged without stagnating because the upper and lower components are tilted downwards and backwards, and the rear ends are open.

[0013] In this invention, preferably, the protrusion has a front connecting member that connects the front end of the upper component and the front end of the lower component.

[0014] According to this structure, the upper and lower components are connected by a front connecting component, thus resulting in greater strength and improved durability compared to having the upper and lower components set separately.

[0015] In this invention, preferably, the front connecting member is tilted with the front side higher when viewed from the side.

[0016] The rear fulcrum of the conveying unit is positioned at the same height as the threshing device. As a result, when the harvesting unit moves up and down, it follows an arc-shaped trajectory that is higher towards the front when viewed from the side. Furthermore, according to this structure, the front connecting member is tilted so that it is higher towards the front when viewed from the side, thus minimizing the gap between the harvesting unit and the front connecting member even when the harvesting unit moves up and down.

[0017] In this invention, preferably, the protrusion has a rear connecting member that connects the rear end of the upper component and the rear end of the lower component, and the rear connecting member is supported on the lower part of the driving unit.

[0018] According to this structure, the rear connecting member is supported on the lower part of the driver's compartment, thereby enabling the rear ends of the upper and lower components to be supported together on the driver's compartment. As a result, installation can be performed more efficiently compared to installing the upper and lower components separately.

[0019] In this invention, preferably, the driver's unit has: a front cover covering the lower part of the driver's unit; and a frame on which the front cover is mounted, and the rear connecting member is fixedly connected to the front cover together with the frame.

[0020] According to this structure, since the rear connecting component is fixedly connected to the front cover, installation can be performed more efficiently compared to the case where the rear connecting component and the front cover are connected separately.

[0021] In this invention, preferably, a lower cover is provided that covers the lower part of the side where the protrusion is located in the left-right direction of the harvesting part, the protrusion extending into the lower cover, and when the harvesting part is lowered, the protrusion overlaps with the lower cover when viewed from above.

[0022] This structure allows for both vertical movement of the harvesting section and reduces the gap between the protrusion and the lower cover, thus minimizing the risk of accidental entry of people.

[0023] In this invention, preferably, an upper cover is provided that covers the upper part of the side where the protrusion is located in the left-right direction of the harvesting part, the protrusion extending into the upper cover, and when the harvesting part is lowered, the area of ​​the protrusion and the area of ​​the upper cover overlap in the front-back direction when viewed from above.

[0024] This structure allows for both vertical movement of the harvesting section and reduces the gap between the protrusion and the upper cover, thus minimizing the risk of accidental entry of people.

[0025] In this invention, preferably, when the harvesting part is raised to the highest position and when the harvesting part is lowered to the lowest position, the protrusion overlaps with the transport part when viewed from the side.

[0026] According to this structure, regardless of the location of the harvesting section within the lifting range, the protrusion overlaps with the transport section when viewed from the side. Since the transport section is located at a higher position that is easily visible to the human eye, the protrusion can easily prevent people from accidentally entering the space between the harvesting section and the driving section. Attached Figure Description

[0027] Figure 1 This is an overall side view of a combine harvester.

[0028] Figure 2 This is a top view of the front of a combine harvester.

[0029] Figure 3 This is a side view of the front of the combine harvester when the harvesting section is at its lowest position.

[0030] Figure 4 This is a top view of the front of the combine harvester when the harvesting section is at its lowest position.

[0031] Figure 5 This is a side view of the front of the combine harvester when the harvesting section is raised to its highest position.

[0032] Figure 6 This is a top view of the front of the combine harvester when the harvesting section is raised to its highest position.

[0033] Figure 7 It is a cross-sectional top view showing the mounting structure of the protruding part.

[0034] Explanation of reference numerals in the attached figures

[0035] 3: Harvesting Section

[0036] 4: Feeder (Transportation Section)

[0037] 5: Threshing device

[0038] 6: Driving Section

[0039] 16: Lower cover

[0040] 17: Upper cover

[0041] 19: Driver's section frame (frame)

[0042] 20: Protrusion

[0043] 21: Upper component

[0044] 22: Lower component

[0045] 23: Front connecting component

[0046] 24: Rear connecting parts

[0047] 25: Front Cover Detailed Implementation

[0048] Hereinafter, an embodiment of a conventional combine harvester, which is an example of the harvester of the present invention, will be described with reference to the accompanying drawings. In the following description, the direction of arrow "F" is the front side of the machine body, the direction of arrow "B" is the rear side of the machine body, the direction of arrow "U" is the upper side, the direction of arrow "D" is the lower side, the direction of arrow "R" is the right side, and the direction of arrow "L" is the left side.

[0049] (The overall structure of a combine harvester)

[0050] like Figure 1 and Figure 2 As shown, the combine harvester is supported by a tracked traveling device 1. It includes: a harvesting section 3, which is horizontally elongated in the left-right direction of the machine body and is located at the front of the machine body in a swinging manner to harvest crops from farmland; a feeder 4, serving as a conveying unit, connected to the middle part of the machine body in the left-right direction at the rear of the harvesting section 3, receiving the harvested crops from the harvesting section 3 and conveying the received crops to the rear of the machine body; a threshing device 5, receiving the whole stalks of harvested crops conveyed by the feeder 4 and threshing the harvested crops; a driving section 6, located at the rear of the harvesting section 3; a grain bin 7, storing grains; and a grain discharge device 8, discharging grains to the outside.

[0051] The harvesting section 3 includes: a reel 9 for raking in upright rice stalks; a harvesting blade 10 for cutting the roots of the upright rice stalks; and a auger conveyor 11 for laterally conveying and gathering the harvested rice stalks in the harvesting width direction and then pushing them backward. The harvesting section 3 has a harvesting frame 12 that supports the above-mentioned parts. Figure 2 As shown, the harvesting frame 12 has left and right side walls 13, a bottom 14 and a rear wall 15, for receiving harvested crops.

[0052] Although not shown, the right transverse side of the harvesting section 3 includes: a lower transmission mechanism that transmits power from the machine body side to the auger pusher 11 and the harvester blade 10; and an upper transmission mechanism that transmits power from the machine body side to the reel 9. The right transverse side of the harvesting section 3 also includes: a lower cover 16 that covers the transverse side of the lower transmission mechanism; and an upper cover 17 that covers the transverse side of the upper transmission mechanism.

[0053] like Figure 2As shown, the upper cover 17 has approximately the same left-right width across almost the entire front-rear direction. To protect the lower transmission mechanism from soil erosion, the rear of the lower cover 16 is wider in the left-right direction than other areas. The right end of the rear of the lower cover 16 is positioned at the same location as the right end of the upper cover 17. The left end of the rear of the lower cover 16 extends inward to the left relative to the left end of the upper cover 17.

[0054] The pilot's compartment 6 is located on the right side of the front of the fuselage 2. The pilot's compartment 6 is covered by the cockpit 18. Figure 2 As shown, a driver's frame 19 supporting the driver's frame 6 is located at the lower part of the driver's frame 6. The threshing device 5 is located on the left side of the rear of the machine body 2, and the grain bin 7 and grain discharge device 8 are located on the right side of the rear of the machine body 2. The feeder 4 is connected to the front of the threshing device 5 and extends forward, and the harvesting section 3 is connected to the front of the feeder 4. Although not shown, a power unit with an engine or the like is located below the driver's frame 6.

[0055] As the combine harvester moves along its body 2, it guides the crops from the field into the harvesting section 3 for harvesting. The crops are transported by the feeder 4 and provided to the threshing unit 5, where they are threshed. The grains threshed and collected by the threshing unit 5 are stored in the grain bin 7. The grains in the grain bin 7 can be discharged to the outside through the grain discharge device 8.

[0056] The combine harvester has a protrusion 20 located on the outside of the body of the space S1 between the harvesting section 3 and the driving section 6, preventing the human body from passing between the space S1 and the outer space S2, which is further outside the body than the space S1.

[0057] like Figure 3 As shown, the protrusion 20 has: an upper member 21 that extends cantileveredly from the driving section 6 to the harvesting section 3; a lower member 22 that extends cantileveredly from a position lower than the mounting position of the upper member 21 on the driving section 6 to the harvesting section 3; a front connecting member 23 that connects the front end of the upper member 21 and the front end of the lower member 22; and a rear connecting member 24 that connects the rear end of the upper member 21 and the rear end of the lower member 22.

[0058] The upper component 21 and the lower component 22 are more separated in the vertical direction as they are further away from the driver's unit 6. The upper component 21 and the lower component 22 are tilted downwards and backwards. The front connecting component 23 is tilted higher as it is closer to the front when viewed from the side.

[0059] The upper component 21 and the lower component 22 are constructed from cylindrical tubular materials. In this embodiment, as... Figures 3 to 7 As shown, an upper component 21, a front connecting component 23, and a lower component 22 are formed by bending a single tube into an approximate U-shape.

[0060] The rear connecting component 24 is supported on the lower part of the driver's compartment 6. For example... Figure 3 , Figure 4 and Figure 7 As shown, the rear connecting member 24 has an L-shaped cross-section and extends relatively long in the vertical direction. The rear end portion of the upper member 21 and the rear end portion of the lower member 22 are connected to the rear connecting member 24. Furthermore, the rear ends of the upper member 21 and the lower member 22 are open. Specifically, the outer circumferential surfaces of the rear end portion of the upper member 21 and the rear end portion of the lower member 22, which have circular cross-sections, are welded to the side portion 24A of the rear connecting member 24. The rear ends of the upper member 21 and the lower member 22 are open by means of hollow portions inside the tubes that connect to the rear external space.

[0061] like Figure 3 and Figure 4 As shown, the lower part of the driver's unit 6 includes: a driver's unit frame 19, which supports the driver's unit 6; and a front cover 25, which covers the lower part of the driver's unit 6. The driver's unit frame 19 functions as a frame for mounting the front cover 25.

[0062] The rear connecting component 24 is fixedly connected to the driver's side frame 19 together with the front cover 25. For example... Figure 7 As shown, the rear surface 24B of the rear connecting member 24 is tightened and fixed to the driver's frame 19 by welding bolts 26 provided on the driver's frame 19 and nuts 27 installed on the welding bolts 26 from the front outside. The front cover 25 is sandwiched between the driver's frame 19 and the rear surface 24B of the rear connecting member 24, and the connection is made together by tightening the welding bolts 26 and nuts 27. The welding bolts 26 and nuts 27 are hidden by the side surface 24A of the rear connecting member 24 in a way that they cannot be seen from the side outside the fuselage.

[0063] The protrusion 20 extends downwards to the lower cover 16. For example... Figure 4 As shown, when the harvesting section 3 descends, the protrusion 20 overlaps with the lower cover 16 when viewed from above. Furthermore, the protrusion 20 extends upwards to the upper cover 17. Figure 4 As shown, when the harvesting section 3 descends, the area of ​​the protrusion 20 in the top view overlaps with the area of ​​the upper cover 17 in the front-to-back direction.

[0064] like Figure 3 As shown, when the harvesting section 3 descends to its lowest position, the protrusion 20 overlaps with the feeder 4 in a side view. Furthermore, as... Figure 5 As shown, when the harvesting section 3 rises to its highest position, the protrusion 20 also overlaps with the feeder 4 when viewed from the side.

[0065] like Figure 5As shown, when the harvesting section 3 moves up and down between its lowest and highest positions, the movement trajectory of the portion of the lower cover 16 closest to the protrusion 20, when viewed from the side, moves along the front connecting member 23 of the protrusion 20. As a result, regardless of the position of the harvesting section 3 within its vertical movement range, the gap between the harvesting section 3 and the protrusion 20 can be reduced, effectively preventing the passage of a person.

[0066] (Other implementation methods)

[0067] Other implementation methods are listed below.

[0068] (1) The upper part 21 and the lower part 22 may be in a backward and downward tilted position, while the other part may be in a backward and upward tilted position, or both parts may be in a backward and upward tilted position. In addition, the upper part 21 and the lower part 22 may also be in a horizontal position.

[0069] (2) The upper part 21 and the lower part 22 can also be angular tubes, solid round rods or solid angles, etc.

[0070] (3) The front connecting member 23 may be in a longitudinal posture extending in the vertical direction, or in an inclined posture that is lower as it approaches the front when viewed from the side. Furthermore, the protrusion 20 may not have the front connecting member 23. For example, the upper member 21 and the lower member 22 may be composed of only rod-shaped bodies extending in a cantilever shape.

[0071] (4) The rear connecting member 24 may also be connected to the driver's side frame 19, respectively, and the front cover 25. Furthermore, the protrusion 20 may not have the rear connecting member 24. For example, the upper member 21 and the lower member 22 may also be connected to the driver's side frame 19 separately.

[0072] (5) When the harvesting part 3 descends, the protrusion 20 and the lower cover 16 may not overlap when viewed from above.

[0073] (6) When the harvesting section 3 descends, the area of ​​the protrusion 20 and the area of ​​the upper cover 17 may not overlap in the front-back direction when viewed from above.

[0074] (Industry availability)

[0075] This invention is not limited to tracked conventional combine harvesters, but can also be applied to conventional combine harvesters with wheeled travel devices, or corn harvesters, etc.

Claims

1. A harvester, characterized in that, have: The harvesting section is horizontally elongated along the left and right sides of the machine body and is located at the front of the machine body to harvest crops in farmland; The conveying unit is connected to the middle part of the machine body in the left-right direction at the rear of the harvesting unit, and can swing up and down with the rear end as the fulcrum to receive the harvested crops that have been harvested by the harvesting unit and convey the input harvested crops to the rear of the machine body. The threshing device receives the whole stalks of harvested crop transported by the conveying unit and performs threshing on the harvested crop; and The driver's unit is located behind the harvesting unit. A protrusion is provided between the outer side of the harvesting section and the driving section of the machine body. The protrusion has: an upper component extending cantileveredly from the driver section toward the harvesting section; and a lower component extending cantileveredly from a portion lower than the mounting portion of the upper component on the driver section toward the harvesting section. The further away the upper component and the lower component are from the driver's seat, the more they separate in the vertical direction. The protrusion is tightened and fixed to the driver's side.

2. The harvester according to claim 1, characterized in that, The upper component and the lower component are tilted backward and downward.

3. The harvester according to claim 2, characterized in that, The upper component and the lower component are made of tubing, and the rear ends of the upper component and the lower component are open.

4. The harvester according to any one of claims 1 to 3, characterized in that, The protrusion has a front connecting member that connects the front end of the upper component and the front end of the lower component.

5. The harvester according to claim 4, characterized in that, The front connecting component is tilted at an angle that is higher towards the front when viewed from the side.

6. The harvester according to any one of claims 1 to 3, characterized in that, The protrusion has a rear-side connecting member that connects the rear end of the upper component and the rear end of the lower component. The rear connecting component is supported on the lower part of the driver's unit.

7. The harvester according to claim 6, characterized in that, The driver's unit includes: a front cover covering the lower part of the driver's unit; and a frame on which the front cover is mounted. The rear connecting component is fixedly connected to the frame together with the front cover.

8. The harvester according to any one of claims 1 to 3, characterized in that, A lower cover having a portion covering the lower part of the side where the protrusion in the left-right direction of the harvesting section is located. The protrusion extends toward the lower cover. When the harvesting section descends, the protrusion overlaps with the lower cover when viewed from above.

9. The harvester according to any one of claims 1 to 3, characterized in that, An upper cover having an upper portion covering the side where the protrusion in the left-right direction of the harvesting section is located. The protrusion extends toward the upper cover. When the harvesting section descends, the area of ​​the protrusion overlaps with the area of ​​the upper cover in the front-to-back direction when viewed from above.

10. The harvester according to any one of claims 1 to 3, characterized in that, When the harvesting section rises to its highest position and when the harvesting section descends to its lowest position, the protrusion overlaps with the transport section when viewed from the side.

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