combine

Abstract

We propose a combine harvester that can improve the working environment by blowing air towards the worker's legs to cool them down. [Solution] In a combine harvester, a pre-harvesting device (3) for harvesting grain stalks is provided on the front side of the machine frame (1) on which the engine (E) is mounted, a threshing device (4) for threshing grain stalks is provided on the rear left side of the pre-harvesting device (3), and a control unit (5) for the operator is provided on the rear right side of the pre-harvesting device (3), a fan (30) for blowing air upwards is provided at the rear of the floor (20) on which the operator's legs are placed in the control unit (5).

Description

Technical Field

[0006] , , , ,

[0001] The present invention relates to a combine equipped with a fan for cooling an operator's legs.

Background Art

[0002] Conventionally, a technique is known in which a fan is provided on a front panel in front of a driver's seat and air is blown toward the face of an operator sitting on the driver's seat. (Patent Document 1)

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, when the temperature of the outside air is high, there is a problem that hot air is blown onto the face of the operator and air heated by the engine is blown onto the legs of the operator.

[0005] Therefore, the main object of the present invention is to propose a combine that can blow air toward the legs of an operator, cool the legs of the operator, and improve the working environment.

Means for Solving the Problems

[0006] The present invention that solves the above problems is as follows. That is, the invention according to claim 1 is a combine in which a pre-harvesting treatment device (3) for harvesting cereal straw is provided on the front side of a body frame (1) equipped with an engine (E), a threshing device (4) for threshing cereal straw is provided on the left rear side of the pre-harvesting treatment device (3), and an operator's cab (5) on which an operator rides is provided on the right rear side of the pre-harvesting treatment device (3). The combine harvester is characterized by having a fan (30) that blows air upwards at the rear of the floor (20) on which the operator of the control unit (5) places their legs.

[0007] The invention described in claim 2 is a combine harvester according to claim 1, wherein a detachable base (22) is provided on the floor (20), the fan (30) is housed in the base (22), an air intake port (25) for drawing in outside air is formed in the right wall of the base (22), and a plurality of first ventilation holes (24) for passing air blown from the fan (30) is formed in the upper wall of the base (22).

[0008] The invention described in claim 3 is a combine harvester according to claim 2, wherein a cooling device (35) for cooling air is provided below the floor (20), and a plurality of second ventilation holes are formed in the portion of the floor (20) facing the fan (30) and the cooling device (35) to allow cooled air blown from the cooling device (35) to pass through.

[0009] The invention described in claim 4 is the combine harvester according to claim 3, wherein a start switch (27) for rotating the fan (30) and an increase / decrease dial (28) for increasing or decreasing the rotational speed of the fan (30) are provided adjacent to each other on the rear of the right wall of the base (22).

[0010] The invention described in claim 5 is a combine harvester according to claim 4, wherein the intake port (25) is provided with a shutter that opens and closes the intake port (25), and when the cooling device (35) is operating, the intake port (25) is closed with the shutter, and when the cooling device (35) is stopped, the intake port (25) is opened.

[0011] The invention described in claim 6 is a combine harvester according to any one of claims 1 to 5, further comprising a sun visor (9) covering the upper part of the cockpit (10) of the control unit (5). [Effects of the Invention]

[0012] According to the invention described in claim 1, a fan (30) that blows air upward is provided at the rear of the floor (20) on which the operator's legs rest in the control unit (5). This allows air to be blown towards the operator's legs, cooling them and improving the working environment.

[0013] According to the invention described in claim 2, in addition to the effects of the invention described in claim 1, a detachable base (22) is provided on the floor (20), a fan (30) is housed in the base (22), an air intake port (25) for drawing in outside air is formed on the right wall of the base (22), and a plurality of first ventilation holes (24) for passing air blown from the fan (30) are formed on the upper wall of the base (22). As a result, the base (22) can be removed from the floor (20) to easily perform maintenance work on the fan (30). In addition, outside air can be easily drawn in.

[0014] According to the invention described in claim 3, in addition to the effects of the invention described in claim 2, a cooling device (35) for cooling the air is provided below the floor (20), and a plurality of second ventilation holes are formed in the part of the floor (20) facing the fan (30) and the cooling device (35) to allow the cooled air blown from the cooling device (35) to pass through. As a result, the worker's legs are cooled more by the cooled air blown from the cooling device (35), and the working environment can be further improved.

[0015] According to the invention described in claim 4, in addition to the effects of the invention described in claim 3, a start switch (27) for rotating the fan (30) and an increase / decrease dial (28) for increasing or decreasing the rotation speed of the fan (30) are provided adjacent to each other on the rear of the right wall of the base (22), so that the operator can easily start the fan (30) and increase or decrease the rotation speed of the fan (30) without significantly changing their posture.

[0016] According to the invention described in claim 5, in addition to the effect of the invention described in claim 4, a shutter for opening and closing the intake port (25) is provided at the intake port (25). When the cooling device (35) is operating, the intake port (25) is blocked by the shutter, and when the cooling device (35) is stopped, the intake port (25) is opened. Therefore, it is possible to prevent the cooling air blown from the cooling device (35) from being heated.

[0017] According to the invention described in claim 6, in addition to the effect of the invention described in any one of claims 1 to 5, a sun visor (9) that covers the upper part of the driver's seat (10) of the control unit (5) is provided. Therefore, it is possible to prevent direct sunlight from hitting the operator sitting on the driver's seat (10) and further improve the working environment.

Brief Description of the Drawings

[0018] [Figure 1] It is a front view of the combine. [Figure 2] It is a right side view of the combine. [Figure 3] It is a plan view of the combine. [Figure 4] It is a plan view of the control unit. [Figure 5] It is a perspective view of the control unit viewed from the front right side. [Figure 6] It is a perspective view of the fan installed inside the pedestal viewed from the front right side. [Figure 7] It is a front view for explaining the fan. [Figure 8] It is a right side view for explaining the fan. [Figure 9] It is a plan view for explaining the fan. [Figure 10] It is a perspective view of the sun visor viewed from the front lower side. [[ID=4!]]

Modes for Carrying Out the Invention

[0019] As shown in Figures 1-3, the general-purpose combine harvester has a running device 2 consisting of a pair of left and right crawlers that travel on the soil surface on the underside of the machine frame 1, a pre-harvest processing device 3 for harvesting grain stalks in the field is provided on the front of the machine frame 1, a threshing device 4 for threshing and sorting the harvested grain stalks is provided on the rear left side of the pre-harvest processing device 3, and a control unit 5 for the operator is provided on the rear right side of the pre-harvest processing device 3.

[0020] An engine E room 6 housing the engine E is located below the control unit 5, and a grain tank 7 for storing threshed and sorted grain is located behind the control unit 5. A discharge auger 8 is provided behind the grain tank 7, consisting of a vertically extending grain lifting section for discharging grain to the outside and a horizontal discharge section extending forward from the top of the grain lifting section. A sun visor 9 is also provided above the control unit 5 to block direct sunlight.

[0021] The pre-harvesting processing device 3 consists of a raking device 3A that transports the grain stalks in the field to the rear while standing them upright, a cutting blade device 3B that cuts the base of the grain stalks transported behind the raking device 3A, an auger device 3C that gathers the transported grain stalks to the left, and a feeder house 3D that transports the gathered grain stalks to the threshing device 4.

[0022] As shown in Figure 4, a front panel 11 is provided in front of the cockpit 10 of the control unit 5. A touch panel monitor 12 is provided in the center of the front panel 11 to display the travel speed of the travel device 2 and the output rotation of the engine E, etc. An operating lever 13 for operating the turning of the travel device 2 and the raising and lowering of the pre-harvesting device 3 is provided on the right side. Between the monitor 12 and the operating lever 13 is an activation switch 14 for activating the cooling device 35, which will be described later.

[0023] A side panel 15 is provided on the left side of the cockpit 10. A main shift lever 16 is provided at the front of the side panel 15 for operating the continuously variable transmission that increases and decreases the output speed of the engine E and switches the direction of rotation. A sub-shift lever 17 is provided behind the main shift lever 16 for operating the transmission that increases and decreases the output speed of the continuously variable transmission.

[0024] Furthermore, to the left of the main transmission lever 16 is an auger lever 18 for operating the auger clutch, which transmits the output rotation of the engine E to the discharge auger 8, and to the left of the sub-transmission lever 17 is a harvesting lever 19 for operating the harvesting clutch, which transmits the output rotation of the engine E to the harvesting pre-treatment device 3, and the threshing clutch, which transmits the output rotation of the engine E to the threshing device 4.

[0025] As shown in Figures 5 and 6, a rectangular prism-shaped base 22 housing a fan 30 is provided at the rear of the floor 20 on which an operator seated in the cockpit 10 rests their legs. The base 22 is formed from a front wall and a rear wall, a left wall and a right wall connecting the front wall and the rear wall, and an upper wall covering the tops of the front wall, rear wall, left wall, and right wall.

[0026] Multiple ventilation holes (the "first ventilation hole" in the claim) 24 are formed on the upper wall of the base 22 to allow air blown from the fan 30 to pass through, and an air intake port 25 having a longitudinal direction in the front-to-back direction is formed on the right wall to supply outside air into the interior of the base 22. This allows outside air drawn into the interior of the base 22 to be blown upward through the ventilation holes 24, cooling the worker's legs and suppressing deterioration of the working environment such as steering. It is also preferable to attach an openable and closable shutter (not shown) to the air intake port 25. This allows the shutter to be closed while the cooling device 35 is in operation to prevent the cold air blown from the cooling device 35 from warming up.

[0027] On the right wall of the base 22, behind the air intake 25, are a start switch 27 for rotating the fan 30 and a speed increase / decrease dial 28 for increasing or decreasing the fan 30's rotation speed, both positioned vertically. This allows the operator to easily start the fan 30 and adjust its rotation speed while bending forward.

[0028] As shown in Figures 7-9, a cooling device 35 is provided below the floor 20 facing the fan 30, and the floor 20 facing the fan 30 and the cooling device 35 has a plurality of ventilation holes (the "second ventilation hole" in the claim, not shown) formed therein to allow cooled air blown from the cooling device 35 to pass through. This allows the air cooled by the cooling device 35 to be blown upward through the ventilation holes 24, cooling the worker's legs and further suppressing deterioration of the working environment such as steering.

[0029] As shown in Figure 10, a connecting member 40 extending in the vertical direction is formed at the rear of the sun visor 9. The connecting member 40 is supported by a support member 42 that also extends in the vertical direction, allowing it to move vertically. The support member 42 is fixed to the front wall of the grain tank 7. This allows the vertical position of the sun visor 9 to be adjusted to suit the worker's physique.

[0030] <Other> It is preferable to provide a harvesting reversal lever (not shown) between the threshing device 4 and the control unit 5, which reverses the rotation direction of the raking device 3A of the pre-harvesting processing device 3. This makes it possible to reverse the rotation of the raking device 3A, etc., and easily remove the grain stalks that have become entangled in the raking device 3A, etc.

[0031] It is preferable to provide a threshing drum speed control lever (not shown) between the threshing device 4 and the control unit 5 to increase or decrease the rotation speed of the threshing drum of the threshing device 4. This allows the rotation speed of the threshing drum of the threshing device 4 to be increased or decreased according to the condition and type of grain, thereby improving the efficiency of grain recovery. [Explanation of symbols]

[0032] 1. Aircraft frame 3. Pre-harvesting treatment device 4. Threshing machine 5. Control Unit 9 Sun visor 20 floors 22 base 24 Ventilation holes (1st ventilation hole) 25 Air intake 27. Start switch 28. Speed ​​Increase / Decrease Dial 30 Fans 35 Cooling device E engine

Claims

1. In a combine harvester, a pre-harvesting device (3) for harvesting grain stalks is provided on the front side of the machine frame (1) on which the engine (E) is mounted, a threshing device (4) for threshing grain stalks is provided on the rear left side of the pre-harvesting device (3), and a control unit (5) for the operator is provided on the rear right side of the pre-harvesting device (3), A combine harvester characterized by having a fan (30) that blows air upwards at the rear of the floor (20) on which the operator of the control unit (5) rests their legs.

2. A removable base (22) is provided on the floor (20), The fan (30) is housed in the base (22), The combine harvester according to claim 1, wherein an air intake port (25) for drawing in outside air is formed on the right wall of the base (22), and a plurality of first ventilation holes (24) for passing air blown from a fan (30) is formed on the upper wall of the base (22).

3. A cooling device (35) for cooling the air is provided below the floor (20). The combine harvester according to claim 2, wherein a plurality of second ventilation holes are formed in the portion of the floor (20) facing the fan (30) and the cooling device (35) to allow cooled air blown from the cooling device (35) to pass through.

4. The combine harvester according to claim 3, wherein a start switch (27) for rotating the fan (30) and an increase / decrease dial (28) for increasing or decreasing the rotation speed of the fan (30) are provided adjacent to each other on the rear of the right wall of the base (22).

5. A shutter for opening and closing the air intake port (25) is provided in the air intake port (25). When the cooling device (35) is in operation, the air intake (25) is closed with a shutter. The combine harvester according to claim 4, wherein the air intake port (25) is opened when the cooling device (35) is stopped.

6. Claim 1, wherein a sun visor (9) is provided to cover the upper part of the cockpit (10) of the control unit (5). A combine harvester as described in any one of items ~5.

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