CN106457957B - Working machine - Google Patents

Working machine Download PDF

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Publication number
CN106457957B
CN106457957B CN201480079207.0A CN201480079207A CN106457957B CN 106457957 B CN106457957 B CN 106457957B CN 201480079207 A CN201480079207 A CN 201480079207A CN 106457957 B CN106457957 B CN 106457957B
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China
Prior art keywords
cab
air
air conditioning
rear wall
unit
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CN201480079207.0A
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CN106457957A (en
Inventor
松下博昭
成田靖
山形浩司
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Kubota Corp
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Kubota Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Harvester Elements (AREA)

Abstract

The invention provides a working machine capable of improving assembling performance of an air conditioner and an outside air introducing part. The working machine comprises: a cab (3) that covers the cab; an air conditioning device (27) that conditions air in the cab (3); an outside air introduction unit (28) that introduces outside air into the air conditioning device (27); and an air conditioning unit (26) integrally provided with an air conditioning device (27) and an outside air introduction section (28).

Description

Working machine
Technical Field
The present invention relates to a work machine having an air conditioner for conditioning air in a cab.
Background
(1) As the working machine, for example, a combine harvester described in patent document 1 is known. The combine harvester has an air conditioning device ("air conditioning unit" in the literature) that conditions air in a cab ("cab" in the literature). The air conditioner is housed in an air conditioning unit chamber covered with a unit chamber cover body. An outside air introduction portion for introducing outside air into the air conditioner is formed in the unit chamber cover body. By introducing outside air from the outside air introducing unit into the air conditioner, the air in the cab can be adjusted by the air conditioner.
(2) As the working machine, for example, a combine harvester described in patent document 2 is known. The combine harvester has an air conditioning unit (in the literature, "cold air unit") having an air conditioning device that conditions the air of a cab (in the literature, "cab"). The air conditioning unit is mounted at the rear of the cab and at the rear of the threshing device. Air from the air conditioner is sent into the cab through the air supply duct.
(Prior art document)
(patent document)
Patent document 1: japanese patent application publication No. JP 4-108025 "
Patent document 2: japanese Utility model patent application publication "Shikaiping No. 4-83813"
Disclosure of Invention
(problems to be solved by the invention)
(1) The problem corresponding to the background art (1) is as follows.
In the combine harvester described in patent document 1, it is necessary to separately assemble the unit chamber cover body in which the external air introducing portion is formed and the air conditioner, and there is room for improvement in the assembling property of the air conditioner and the external air introducing portion.
In view of the above, it is desirable to provide a working machine in which the ease of assembly of the air conditioner and the outside air introducing unit is improved.
(2) The problem corresponding to the background art (2) is as follows.
In the combine harvester described in patent document 2, since the air conditioning unit is mounted on the rear portion of the threshing device behind the cab, the air blowing distance from the air conditioning unit to the cab is long. Therefore, the temperature of the air from the air conditioner is likely to change in the process of reaching the cab. Thus, the combine harvester described in patent document 2 has room for improvement in terms of the air conditioning efficiency of the cab.
In view of the above, it is desirable to provide a work machine that improves the air conditioning efficiency of the cab.
(means for solving the problems)
(1) The solution corresponding to the problem (1) is as follows.
The present invention is characterized in that it comprises,
comprising: a cab covering the cab;
an air conditioning device that conditions air in the cab;
an outside air introducing unit that introduces outside air into the air conditioning apparatus; and
and an air conditioning unit integrally including the air conditioning device and the outside air introducing unit.
With this configuration, the air conditioner and the outside air introducing unit can be easily assembled simply by assembling the air conditioner unit. Therefore, the ease of assembly of the air conditioner and the outside air introducing unit can be improved. Further, the air conditioning unit can be easily mounted in the cab afterwards.
In the present invention, it is preferable that,
the air conditioning device is disposed in a state of being adjacent to a rear wall of the cab at the rear of the cab,
the air conditioner is provided in a state of projecting rearward from a rear wall of the cab.
According to this configuration, the air conditioning unit does not protrude toward the interior of the cab, and a large indoor space can be secured for the cab.
In the present invention, it is preferable that,
the outside air introducing unit is disposed adjacent to the air conditioner below the air conditioner.
According to this configuration, since the air conditioner functions as an eave, rainwater is less likely to enter the outside air introducing portion.
In the present invention, it is preferable that,
the outside air introducing unit is disposed along a rear wall of the cab in a state of being adjacent to the rear wall of the cab behind the cab.
With this configuration, the outside air introducing portion can be disposed in a small size so as to be close to the rear wall of the cab.
In the present invention, it is preferable that,
an outside air inlet of the outside air introducing unit, into which outside air flows, is provided at a lower portion of the outside air introducing unit, and the outside air is introduced from below, and the outside air inlet is disposed adjacent to a rear wall of the cab.
According to this configuration, since the outside air is introduced from below at the lower portion of the outside air introducing portion in a state where the outside air inlet port is adjacent to the rear wall of the cab, the outside air inlet port can be disposed in a compact manner so as to be close to the rear wall of the cab, and rainwater is less likely to enter from above.
In the present invention, it is preferable that,
the air conditioning unit is disposed in a state of being adjacent to a rear wall of the cab at the rear of the cab,
the working machine is provided with an inner air introducing part which introduces air in the cab into the air conditioning device,
the inside air introduction part is provided at a rear wall of the cab,
the inside air introduction part is communicated with the outside air introduction part.
According to this configuration, the indoor air introducing portion is located in the vicinity of the air conditioning unit, and not only can the indoor air be smoothly introduced from the indoor air introducing portion into the air conditioning apparatus, but also the introduction path can be made common by the outdoor air introducing portion and the indoor air introducing portion.
In the present invention, it is preferable that,
the inside air introduction part is provided at a portion of a rear wall of the cab adjacent to the outside air introduction part.
According to this configuration, the inside air introducing portion is located in the vicinity of the outside air introducing portion, and the inside air introducing portion and the outside air introducing portion can be easily communicated with each other.
In the present invention, it is preferable that,
the outside air introducing part has an air cleaning filter,
the filter and the inner air introduction part are disposed in a state of facing each other.
According to this configuration, the inside air introducing portion and the outside air introducing portion can be arranged in a compact size by bringing the inside air introducing portion and the filter close to each other.
In the present invention, it is preferable that,
the filter is disposed between an outside air inlet of the outside air introducing part into which outside air flows and an inside air inlet of the inside air introducing part into which inside air flows.
According to this configuration, the filter can be arranged in a small size by utilizing the space between the outside air inlet and the inside air inlet.
In the present invention, it is preferable that,
an inside/outside air adjusting mechanism that adjusts an introduction ratio between the outside air from the outside air introducing portion and the inside air from the inside air introducing portion is provided between the outside air introducing portion and the inside air introducing portion.
According to this configuration, the inside/outside air conditioning mechanism can be arranged in a small size by utilizing the space between the outside air introducing portion and the inside air introducing portion.
In the present invention, it is preferable that,
the air conditioning unit is disposed in a state of being adjacent to a rear wall of the cab at the rear of the cab,
the air conditioning unit has an air conditioning case that houses the air conditioning device,
the air conditioning device is configured in a state of being covered by the air conditioning box and a rear wall of the cab.
According to this configuration, the air conditioning device can be protected by the air conditioning box and the rear wall of the cab.
(2) The solution corresponding to the problem (2) is as follows.
The present invention is characterized in that it comprises,
comprising: a cab covering the cab; and
an air conditioning unit having an air conditioning device that conditions air of the cab,
the air conditioning unit is supported on a rear wall of the cab in a state of being located behind the cab.
According to this configuration, the air conditioning unit is located near the cab, and the air blowing distance from the air conditioning device to the cab is shortened. Therefore, the air conditioning efficiency of the cab can be improved. Further, the air conditioning unit can be easily supported by the rear wall of the cab.
In the present invention, it is preferable that,
the air conditioning unit is disposed at a middle portion in a vertical direction of a back portion of a rear wall of the cab,
the air conditioning unit is provided in a state of projecting rearward from a rear wall of the cab.
According to this configuration, the air conditioning unit can be disposed so as not to protrude in the vertical direction from the back of the rear wall of the cab. Further, by not making the air conditioning unit project toward the interior side of the cab, a large indoor space can be secured for the cab.
In the present invention, it is preferable that,
comprising: a harvesting part for harvesting crops in farmland; and
a storage unit disposed behind the cab and configured to store the crop harvested by the harvesting unit,
the air conditioning unit is disposed between the cab and the storage unit.
According to this configuration, the air conditioning unit can be arranged in a small size using the space between the cab and the storage unit.
In the present invention, it is preferable that,
a carrying device provided between the cab and the storage unit, the carrying device carrying the crop harvested by the harvesting unit to the storage unit,
the air conditioning unit is disposed adjacent to the conveyance device in the left-right direction.
According to this configuration, the air conditioning unit can be arranged in a compact size using the space adjacent to the conveying device in the lateral direction.
In the present invention, it is preferable that,
a carrying device provided between the cab and the storage unit, the carrying device carrying the crop harvested by the harvesting unit to the storage unit,
the air conditioning unit is disposed adjacent to the conveyance device in the vertical direction.
With this configuration, the air conditioning unit can be arranged in a compact size using the space adjacent to the conveying device in the vertical direction.
In the present invention, it is preferable that,
the air conditioning unit has an air conditioning case that houses the air conditioning device,
the air conditioning case is provided with a recessed portion into which an accessory attached to the air conditioning unit enters.
According to this configuration, the accessory can be disposed in a small size by the recessed portion of the air conditioning unit.
In the present invention, it is preferable that,
comprising: a harvesting part for harvesting crops in farmland; and
a storage unit disposed behind the cab and configured to store the crop harvested by the harvesting unit,
a carrying device provided between the cab and the storage unit, the carrying device carrying the crop harvested by the harvesting unit to the storage unit,
at least one of an engine intake pipe and an exhaust pipe is provided behind the cab,
the conveyance device and at least one of the intake pipe and the exhaust pipe are respectively disposed on one side in the left-right direction and the other side in the left-right direction with the air conditioning unit interposed therebetween.
According to this configuration, the air conditioning unit can be arranged in a small size by utilizing a space between the conveyance device and at least one of the intake pipe and the exhaust pipe.
In the present invention, it is preferable that,
comprising: a harvesting part for harvesting crops in farmland; and
a storage unit disposed behind the cab and configured to store the crop harvested by the harvesting unit,
a carrying device provided between the cab and the storage unit, the carrying device carrying the crop harvested by the harvesting unit to the storage unit,
a discharge device between the cab and the storage part, the discharge device discharging the crop in the storage part,
the carrying device and the discharge device are respectively arranged on one side in the left-right direction and the other side in the left-right direction, which sandwich the air conditioning unit.
With this configuration, the air conditioning unit can be arranged in a small size using the space between the conveying device and the discharge device.
In the present invention, it is preferable that,
the air conditioning unit is supported on a rear wall of the cab in a state of being located behind the cab,
a support frame is supported on the rear wall of the cab, and the support frame supports the air conditioning unit.
According to this configuration, the support frame can be easily supported by the rear wall of the cab.
In the present invention, it is preferable that,
the support frame is supported by a cab frame that constitutes a rear wall of the cab.
According to this configuration, the support frame can be stably supported by the cab frame having a large strength of the rear wall of the cab.
In the present invention, it is preferable that,
the support frame is supported on a rear wall of the cab inside the cab,
the support frame has a placement portion on which the air conditioning unit is placed,
the mounting portion is provided in a state of penetrating through a rear wall of the cab and protruding rearward from the rear wall of the cab.
According to this configuration, the air conditioning unit can be reliably supported by the mounting portion while the support frame is supported by the rear wall of the cab inside the cab so as to reduce the portion of the support frame that protrudes outward from the rear wall of the cab.
In the present invention, it is preferable that,
the air conditioning unit includes an outside air introducing part for introducing outside air into the air conditioning apparatus,
the air conditioner is disposed on the upper side of the support frame,
the outside air introducing unit is disposed below the support frame.
According to this configuration, the portion of the support frame that supports the air conditioner and the portion of the support frame that supports the outside air introducing unit are provided on the upper side and the lower side of the support frame, respectively, so that both the air conditioner and the outside air introducing unit can be easily supported by one support frame.
In the present invention, it is preferable that,
comprising: a cab covering the cab;
an air conditioning unit having an air conditioning device that conditions air of the cab; and
a blowing duct for blowing air from the air conditioner into the cab,
the air conditioning unit is disposed outside the cab,
the air supply duct is disposed in a state of being exposed to the interior of the cab,
the air conditioning unit is connected to the air supply duct at a connection portion thereof so as to penetrate through a rear wall of the cab.
According to this configuration, the air supply duct is not provided inside another member (for example, the ceiling portion of the cab), and can be easily provided. Further, the connection portion is located in the vicinity of the air conditioning unit, so that the connection structure between the air conditioning unit and the air supply duct can be simply configured.
In the present invention, it is preferable that,
having a blowing duct for blowing air from the air conditioner into the cabin,
the air supply duct is provided along an inner side surface of the cab.
According to this configuration, since the air supply duct is along the inner surface of the cab, the driver is less likely to be bothered with.
In the present invention, it is preferable that,
having a blowing duct for blowing air from the air conditioner into the cabin,
the air supply duct has a cross duct portion provided along a ceiling of the cab,
the lateral duct portion has left and right portions extending in the left-right direction of the cab,
the left and right portions of the lateral duct portion are formed across one side in the left-right direction and the other side in the left-right direction of the cab,
the left and right portions of the lateral duct portion are disposed between a driver seat provided in the driver's cabin and a front glass cover provided on a front surface of the driver's cabin in a front-rear direction of the driver's cabin,
an air outlet that blows air from the air conditioner is provided in the lateral duct portion,
the air outlet is provided at the left and right portions of the horizontal duct portion.
According to this structure, since the lateral duct portion is along the ceiling of the cab, the driver is less likely to be bothered with. Further, the air from the air conditioner can be distributed over a wide range in the left-right direction in the cab through the left and right portions of the lateral duct portion. Further, the air from the air outlet easily reaches the driver, and the ventilation feeling of the air conditioner can be improved.
In the present invention, it is preferable that,
the air outlet is provided in a state of facing a driver seat provided in the driver section.
According to this configuration, the air from the air outlet can easily reach the driver directly, and the ventilation feeling of the air conditioner can be improved.
In the present invention, it is preferable that,
the air outlet is provided in a state of facing a front glass cover provided on a front surface of the cab.
According to this configuration, the air from the air outlet can easily reach the front glass cover, and the front glass cover can be prevented from frosting.
In the present invention, it is preferable that,
having a blowing duct for blowing air from the air conditioner into the cabin,
the air supply duct has a vertical duct portion extending upward from the air conditioning unit,
the longitudinal duct portion is provided along an inner side surface of a rear wall of the cab.
According to this configuration, since the vertical duct portion is along the inner surface of the cab, the driver is less likely to be bothered with.
In the present invention, it is preferable that,
the air conditioning unit is disposed in a state of being offset to one side in the left-right direction with respect to the center in the left-right direction of the cab,
the vertical duct portion is disposed in a state of being offset to the one side in the left-right direction with respect to a center in the left-right direction of the air conditioning unit.
According to this configuration, since the vertical duct portion is offset to one side in the left-right direction of the cab, the driver is less likely to be bothered with.
In the present invention, it is preferable that,
the air supply duct has a cross duct portion provided along a ceiling of the cab,
the lateral duct portion is disposed above a rear window portion provided in a rear wall of the cab,
the longitudinal duct portion is provided so as to extend in the vertical direction of the rear window portion.
According to this configuration, the air supply duct can be properly provided and the degree of freedom of the air supply path can be improved by the vertical duct portion extending in the vertical direction of the rear window portion and the horizontal duct portion extending along the ceiling of the cab. Further, the lateral duct portion does not block the view of the rear window portion, and the view of the rear window portion can be ensured satisfactorily.
In the present invention, it is preferable that,
an operation portion for operating the air conditioner is provided at a rear wall inside the cab.
According to this configuration, the operation portion is located in the vicinity of the driver, so that the driver can easily operate the operation portion.
In the present invention, it is preferable that,
the air conditioning unit is disposed in a state of being adjacent to a rear wall of the cab at the rear of the cab,
the working machine is provided with an air supply duct which supplies air from the air conditioning device into the cab,
a connecting portion between the air conditioning unit and the air supply duct is provided in a state of penetrating a rear wall of the cab,
the connecting portion penetrates through a portion of a rear wall of the cab that faces the air conditioning unit.
According to this configuration, the connection portion is located in the vicinity of the air conditioning unit, and the connection structure between the air conditioning unit and the air supply duct can be easily configured.
In the present invention, it is preferable that,
the air conditioning unit is disposed below a rear window portion provided in a rear wall of the cab.
With this configuration, the air conditioning unit can secure a good view of the rear window portion without blocking the view of the rear window portion.
Drawings
Fig. 1 is a right side view showing a general type combine harvester according to a first embodiment.
Fig. 2 is a plan view showing a conventional combine harvester according to the first embodiment.
Fig. 3 is a rear view showing a general type combine harvester according to the first embodiment.
Fig. 4 is a top sectional view showing the cab.
Fig. 5 is a front sectional view showing the cab.
Fig. 6 is a left side sectional view showing the cab.
Fig. 7 is a rear view showing the cab.
Fig. 8 is a right sectional view showing the air conditioning unit and the air supply duct.
Fig. 9 is a right sectional view showing the air conditioning unit.
Fig. 10 is a perspective view showing the upper case.
Fig. 11 is a perspective view showing the lower case.
Fig. 12 is a top cross-sectional view showing a state in which the air conditioning unit is supported by the support frame.
Fig. 13 is a perspective view showing the support frame.
Fig. 14 is a left side view showing a corn harvester according to the second embodiment.
Fig. 15 is a plan view showing a corn harvester according to a second embodiment.
Fig. 16 is a right sectional view showing an interior/exterior air conditioning mechanism according to another embodiment.
Detailed Description
(first embodiment)
Embodiments of the present invention will be described below with reference to the drawings.
(Integrated Structure of combine harvester)
Fig. 1 to 3 show a general combine harvester for harvesting rice and the like as an example of a working machine. The conventional combine harvester has a wheel type traveling device 1. The running device 1 has a pair of left and right front wheels 1A and a pair of left and right rear wheels 1B. A harvesting part 2 (corresponding to the "harvesting part" of the present invention) for harvesting the standing grain stalks of the agricultural field is provided in front of the traveling device 1. A cab 3 covering the cab is provided behind the harvesting unit 2. A step 3A for ascending and descending is provided on the left side of the cab 3.
A threshing device 4 for threshing the harvested grain stalks and a grain tank 5 (corresponding to a "storage unit" of the present invention) for storing grains are provided behind the cab 3. The threshing device 4 and the grain tank 5 are arranged so as to be adjacent to each other in the vertical direction such that the grain tank 5 is located on the upper side and the threshing device 4 is located on the lower side. A primary transporting device 6 (corresponding to the "transporting device" of the present invention) is provided between the cab 3 and the grain tank 5, and the primary transporting device 6 transports the grains from the thresher 4 to the grain tank 5.
The primary carrier device 6 is disposed in an inclined state that is located leftward as being closer to the upper end side as viewed from the rear. An outlet for discharging grains is provided at the upper end of the primary carrier 6. The outlet of the primary transport device 6 can be connected to the inlet of the grain tank 5. An opening/closing cover 5A for covering an outlet for discharging grains is provided at the right side of the grain tank 5 so as to be openable and closable. The grain box 5 swings around a swing axis Y oriented forward and backward, and grains can be discharged by pouring from the discharge port in a state where the opening/closing cover 5A is opened.
The threshing device 4 has an engine 7 on the right. An intake pipe 7A and an exhaust pipe 7B of an engine 7 are provided behind the cab 3. The intake pipe 7A and the exhaust pipe 7B are disposed adjacent to each other in the left-right direction such that the intake pipe 7A is located on the right side and the exhaust pipe 7B is located on the left side. A strainer 7C is provided at the upper end of the air intake pipe 7A.
(driver's cabin)
As shown in fig. 4 to 7, the cab 3 has a ceiling portion 8. A ceiling of cab 3 is formed on a lower surface of ceiling portion 8. The ceiling portion 8 is integrally formed with an outer ceiling and an inner ceiling. The ceiling portion 8 may be formed as an outer ceiling and an inner ceiling separately. A recessed portion 8A recessed upward is formed in the ceiling of cab 3. The recessed portion 8A is formed so as to straddle over the front end portion and over the rear end portion of the floor portion 3B of the cab 3. That is, the recessed portion 8A is formed to extend from above the backrest portion 18B of the driver seat 18 to a position forward and upward of the front end of the seat portion 18A of the driver seat 18. Also, recessed portions 8A are formed across the left and right end portions of the roof of cab 3. That is, the recessed portion 8A is formed so as to straddle above the left sub seat 20L and above the right sub seat 20R.
The front portion of the ceiling portion 8 is supported by a pair of left and right vertical front frames 9. The upper ends of the pair of left and right front vertical frames 9 are connected by a left and right front upper horizontal frame 10. Lower ends of the pair of left and right front vertical frames 9 are connected by left and right front lower horizontal frames 11. The rear portion of the ceiling portion 8 is supported by a pair of right and left vertical rear frames 12 (corresponding to the "cab frame" of the present invention). The upper end portions of the pair of left and right rear vertical frames 12 are connected by a left and right rear upper cross frame 13. Lower portions of the pair of left and right rear vertical frames 12 are connected by a left and right rear lower lateral frame 14 (corresponding to a "cab frame" of the present invention). The upper ends of the pair of left and right front vertical frames 9 and the upper ends of the pair of left and right rear vertical frames 12 are connected by a pair of left and right front and rear frames 15 facing in the front-rear direction.
A front glass cover 16 is provided on the front surface of the cab 3. The front glass cover 16 is provided so as to straddle the pair of left and right front vertical frames 9 in the left-right direction. The front glass cover 16 is provided across the front upper cross frame 10 and the front lower cross frame 11 in the up-down direction. The front glass cover 16 is formed to be curved in a state of being convex toward the front side of the cab 3 in plan view.
The rear wall of the cab 3 is constituted by a rear lower lateral frame 14, a pair of right and left rear vertical frames 12, a rear wall panel 30, and the like. The rear wall panel 30 is supported by the rear lower cross frame 14 and the pair of left and right rear vertical frames 12. A rear window portion 17 is provided at an upper portion of the rear wall panel 30.
The rear window portion 17 is mounted to the rear wall panel 30 via a rear window frame 17 a. The rear window 17 is formed in a substantially rectangular shape that is long in the left-right direction. The rear window portion 17 is formed across the left and right end portions of the rear wall panel 30. The connection between the discharge port of the primary carrier device 6 and the inlet of the grain tank 5 can be observed and confirmed from the interior of the cab 3 through the rear window 17.
An air conditioning unit 26 is provided outside the cab 3, and the air conditioning unit 26 has an air conditioning device 27 for conditioning air in the cab 3. The cab 3 includes, inside thereof, an operator seat 18 on which an operator sits, an operation console 19 having an operation handle 19A, left and right booster seats 20L and 20R on which fellow passengers sit, side panels 21, and an operation unit 32 for operating the air conditioner 27.
The operator's seat 18 is disposed in a state of being offset to the left with respect to a center C1 in the left-right direction of the cab 3. The left sub seat 20L and the right sub seat 20R are respectively arranged such that the left sub seat 20L is positioned on the left side and the right sub seat 20R is positioned on the right side with the driver seat 18 interposed therebetween. The left and right booster seats 20L and 20R are arranged symmetrically with respect to the center C1 in the left-right direction of the driver seat 3. A space in which the side panel 21 is disposed is secured between the driver seat 18 and the right booster seat 20R.
The side panel 21 is disposed between the driver seat 18 and the right booster seat 20R. The side panel 21 includes a main shift lever 22, an accelerator lever 23, a sub-shift lever 24, and a working clutch lever 25.
(operation section)
Operation unit 32 is provided on the rear wall of cab 3 in the interior of cab 3. The operation unit 32 is constituted by a push-type or rotary switch. The operation unit 32 has a function of adjusting the air volume of the air conditioner 27 and a function of turning on and off the power supply of the air conditioner 27. The operation unit 32 is disposed below the rear window 17. The operation portion 32 is disposed between the driver seat 18 and the right booster seat 20R. That is, the operation unit 32 is disposed closer to the driver seat 18 than the vertical duct portion 42 of the air duct 33.
(air-conditioning unit)
As shown in fig. 4 to 7, the air conditioning unit 26 is disposed outside the cab 3 in a state of being adjacent to the rear wall panel 30 behind the cab 3. That is, the air conditioning unit 26 is disposed on the back of the rear wall panel 30. The air conditioning unit 26 is provided in a state of projecting rearward from the rear wall panel 30. Air conditioning unit 26 is supported on the rear wall of cab 3 via support frame 41 in a state of being positioned behind cab 3.
The air conditioning unit 26 is disposed between the cab 3 and the grain tank 5 in the front-rear direction. The air conditioning unit 26 is disposed between the primary conveyance device 6 and the exhaust duct 7B in the left-right direction. The air conditioning unit 26 is disposed adjacent to the primary conveyance device 6 and the exhaust duct 7B in the left-right direction. That is, the primary conveyance device 6 and the exhaust duct 7B are arranged such that the primary conveyance device 6 is positioned on the left side and the exhaust duct 7B is positioned on the right side with the air conditioning unit 26 therebetween. Air conditioning unit 26 is disposed in a state of being shifted to the right side with respect to center C1 in the left-right direction of cab 3. Air conditioning unit 26 is disposed in a state of being retracted in a direction closer to center C1 in the left-right direction of cab 3 than the right end of the rear wall of cab 3 (rear vertical frame 12 on the right side).
Air conditioning unit 26 is disposed at a vertically intermediate portion of the back of the rear wall of cab 3. Specifically, air conditioning unit 26 is disposed in a state of being offset upward with respect to center C2 in the vertical direction of the rear wall of cab 3. The air conditioning unit 26 is disposed below the rear window 17. The air conditioning unit 26 is disposed below the strainer 7C (see fig. 3).
As shown in fig. 8 to 12, air conditioning unit 26 includes an air conditioning device 27 that conditions air in cab 3, an outside air introducing unit 28 that introduces outside air into air conditioning device 27, and an air conditioning box 29 that houses air conditioning device 27. The air conditioning unit 26 integrally includes an air conditioning device 27 and an outside air introducing unit 28. An interior air introducing portion 31 is provided in a rear wall of the cab 3, and the interior air introducing portion 31 introduces air in the cab 3 into the air conditioner 27. In the present embodiment, the inside/outside air adjustment mechanism for adjusting the ratio of the outside air introduced from the outside air introducing portion 28 to the inside air introduced from the inside air introducing portion 31 is not provided. That is, in the present embodiment, air is introduced into the air conditioner 27 in which the outside air from the outside air introducing portion 28 and the inside air from the inside air introducing portion 31 are mixed at substantially the same ratio.
(air-conditioning apparatus)
The air conditioner 27 includes a heat exchanger 27A and a fan 27B. The outside air from the outside air introducing portion 28 and the inside air from the inside air introducing portion 31 are introduced into the air conditioner 27 through the fan 27B. The air conditioner 27 is housed in an upper portion of the air conditioning box 29. Air conditioner 27 is disposed in a state covered with air conditioning box 29 and the rear wall of cab 3. The air conditioner 27 has only a cooling function (does not have a heating function). The air conditioner 27 is supported by the mounting portion 41C in a state of being disposed above the mounting portion 41C of the support frame 41. Air from air conditioner 27 is sent into cab 3 through air supply duct 33 provided inside cab 3.
(outside air introducing part)
The outside air introducing unit 28 is provided at a lower portion of the air conditioning box 29. The outside air introducing unit 28 is disposed below the air conditioner 27 and adjacent to the air conditioner 27. The outside air introducing portion 28 is disposed adjacent to the rear wall plate 30. The outside air introducing portion 28 is supported on the lower side of the support frame 41 in a state of being disposed on the lower side of the placement portion 41C of the support frame 41. The outside air introducing unit 28 includes an external filter 34 for air purification (corresponding to the "filter" of the present invention). The outside air introducing portion 28 has an outside air inlet 28a into which outside air flows. The outside air inlet 28a is provided below the outside air introducing unit 28, and the outside air flows in from below. The outside air inlet 28a is disposed adjacent to the rear wall plate 30.
(air-conditioning case)
Air conditioning box 29 is formed by an upper case 35 and a lower case 36 as separate bodies. The upper case 35 and the lower case 36 are joined via a seal. The air conditioning box 29 is bolted to the rear wall panel 30 from behind via a seal 37B. The front end of the upper case 35 is supported in a state of abutting against the bent portion 30a of the rear wall panel 30 from below via the seal 37B. A concave portion 29A that is concave to the left and a convex portion 29B that is convex to the right are formed on the right side portion of the air conditioning case 29. That is, the recessed portion 29A and the bulging portion 29B are formed at the side portion of the air conditioning unit 26 in the air conditioning box 29 on the side that is offset with respect to the center C1 in the left-right direction of the cab 3.
The recessed portion 29A is configured to let in the exhaust pipe 7B. The recessed portion 29A is formed in a portion of the right side portion of the air conditioning case 29 near the front side. The expansion portion 29B houses a pressure switch (not shown) that detects the pressure of the refrigerant of the air conditioner 27. The bulging portion 29B is formed in a portion of the right side portion of the air conditioning case 29 closer to the rear side.
The lower case 36 is formed with a tapered portion 36A. The tapered portion 36A is formed adjacent to the lower side of the space in the air conditioning box 29 that houses the air conditioning device 27. The tapered portion 36A is formed in a portion of the lower case 36 adjacent to the rear wall panel 30. The outside air introducing portion 28 is provided on the rear side of the tapered portion 36A. The outer filter 34 is mounted to the tapered portion 36A from the rear via the filter housing 38. The tapered portion 36A is formed with a recessed portion 36B recessed forward. A substantially rectangular opening 36a that is long in the left-right direction is formed in the front wall of the recessed portion 36B. The recess 36B accommodates the external filter 34 in a state adjacent to the opening 36 a. A cover 39 covering the outer filter 34 is attached to the filter cover 38 from the rear. Cover 39 is formed to open downward. That is, the outside air inlet 28a is formed at the lower end of the cover 39.
The rear surface of the filter cover 38 is formed as an inclined surface located rearward as the upper end is closer. The filter cover 38 has an opening into which the external filter 34 is fitted. The outer filter 34 is disposed in an inclined state in which the closer to the upper end thereof, the more rearward.
(inner gas introduction part)
The inside air introduction part 31 is provided at a portion of the rear wall panel 30 adjacent to the outside air introduction part 28. The indoor air introducing portion 31 is disposed in a state of being shifted to the right side with respect to the center C3 in the left-right direction of the air conditioning unit 26 (see fig. 5). The inside air introducing portion 31 and the outside air introducing portion 28 communicate with each other through the opening portion 36 a. The indoor air introducing part 31 has an indoor air inlet 31a into which the indoor air flows.
The indoor air inlet 31a is formed in a substantially rectangular shape that is long in the left-right direction. The inside air inlet 31a is formed at a portion of the rear wall panel 30 opposite to the opening 36a of the recess 36B. An internal filter 40 is attached to the internal airflow inlet 31a from the indoor side of the cab 3. The inside air inlet 31a and the outside filter 34 are disposed so as to face each other through the opening 36a of the recessed portion 36B. An external filter 34 is disposed between the internal airflow inlet 31a and the external airflow inlet 28 a.
(supporting frame)
As shown in fig. 8, 9, 12, and 13, the support frame 41 is supported on the rear wall of the cab 3. The support frame 41 includes a horizontal support portion 41A oriented in the left-right direction, a vertical support portion 41B oriented in the up-down direction, and, for example, three placement portions 41C.
The left end of the lateral support portion 41A is supported from below by the vertical support portion 41B. The right end of the lateral support portion 41A is fixed to the right rear vertical frame 12 via a flange portion bolt. The right end of the lateral support portion 41A may be welded and fixed to the right rear vertical frame 12. The upper end of the vertical support portion 41B is fixed in a state of coming into contact with the left end of the horizontal support portion 41A from below. The lower end of the vertical support portion 41B is fixed to the rear lower horizontal frame 14 via a flange portion bolt. The lower end of the vertical support portion 41B may be welded and fixed to the rear lower horizontal frame 14. The lateral support portion 41A and the vertical support portion 41B are disposed on the inner side of the cab 3 with respect to the rear wall panel 30. That is, support frame 41 is supported on the rear wall of cab 3 inside cab 3. The lateral support portion 41A is supported in a state of abutting against the bent portion 30b of the rear wall plate 30 from below.
The air conditioner 27 is mounted on and connected to the mounting portion 41C. The mounting portion 41C is provided in a cantilevered shape extending rearward from the lateral support portion 41A. The mounting portion 41C is provided so as to penetrate the rear wall plate 30 and project rearward from the rear wall plate 30. The three placement portions 41C are disposed with a predetermined interval in the left-right direction with respect to the lateral support portion 41A. Among the three mount portions 41C, the mount portion 41C on the right end and the mount portion 41C on the center side are bolted to the mounting leg 27A on the heat exchanger 27A side. Among the three mounting portions 41C, a pair of front and rear fixing portions 41D are provided in a cantilever shape extending leftward from the left-end mounting portion 41C. The mounting leg 27B on the fan 27B side is bolted to the fixing portion 41D.
(blast duct)
As shown in fig. 4 to 8, air duct 33 is disposed in a state of being exposed to the interior of cab 3. The air supply duct 33 has a vertical duct portion 42 and a horizontal duct portion 43. The air duct 33 is formed separately with a vertical duct portion 42 and a horizontal duct portion 43. The air duct 33 may be integrally formed with the vertical duct portion 42 and the horizontal duct portion 43. (longitudinal conduit part)
The vertical duct portion 42 is provided to extend upward from the air conditioning unit 26. The vertical duct portion 42 is provided along the inner surface of the rear wall of the cab 3. The vertical duct portion 42 is provided so as to extend in the vertical direction of the rear window portion 17. The vertical duct portion 42 is disposed in a state of being shifted to the right side with respect to the center C3 in the left-right direction of the air conditioning unit 26. As described above, not only can the connection between the discharge port of the primary transport device 6 and the inlet of the grain tank 5 be visually confirmed through the rear window 17, but also the vertical duct 42 does not cause trouble when this visual confirmation is performed.
An upper bent portion 42A is formed at an upper end portion of the longitudinal duct portion 42, and the upper bent portion 42A is bent forward along the rear wall 8A of the recessed portion 8A. A lower bent portion 42B is formed at the lower end of the vertical duct portion 42, and the lower bent portion 42B is bent rearward. A connection portion 42C connected to the air conditioner 27 is formed at the rear end portion of the lower bent portion 42B. The vertical duct part 42 is formed such that the area of the lower end opening (the opening of the connecting part 42C) is larger than the area of the upper end opening (the opening of the upper bent part 42A).
A first inclined portion 42D facing the rear window portion 17 and a second inclined portion 42E facing the upper rear cross frame 13 are formed in a portion of the vertical duct portion 42 facing the rear wall of the cab 3. The first inclined portion 42D is formed to be inclined in a state substantially parallel to the rear window portion 17. The second inclined portion 42E is formed to be inclined in a state of being substantially parallel to a virtual line L1 connecting a lower end of the rear wall 8A of the recessed portion 8A and a front lower corner portion of the rear upper cross frame 13.
The connection portion 42C is provided so as to penetrate the rear wall plate 30 and project rearward from the rear wall plate 30. The connection portion 42C penetrates a portion of the rear wall panel 30 that faces the air conditioning unit 26. A seal (not shown) is attached between the flange portion 42a of the connecting portion 42C and the rear wall panel 30. The connecting portion 42C is formed in a substantially rectangular shape that is long in the left-right direction so as to be widened toward the left side.
(horizontal conduit part)
The lateral duct portion 43 is provided along the ceiling of the cab 3. The lateral duct portion 43 is disposed above the rear window portion 17 and in the recessed portion 8A. The lateral duct portion 43 is formed so as to straddle above the front end portion and above the rear end portion of the floor portion 3B of the cab 3. That is, the lateral duct portion 43 is formed to extend from above the backrest portion 18B of the driver seat 18 to a position forward and upward of the front end position P1 of the seat portion 18A of the driver seat 18 when viewed from the side. The lateral duct portion 43 is formed to extend across the left and right sides of the ceiling of the cab 3. That is, the lateral duct portion 43 is formed so as to straddle above the left sub-seat 20L and above the right sub-seat 20R when viewed from the front. The lateral duct portion 43 has a front-rear portion 43A and left-right portions 43B. The lateral duct portion 43 is integrally formed with a front-rear portion 43A and left-right portions 43B.
Front and rear portions 43A are provided to extend linearly in the front-rear direction of cab 3 in plan view. The rear end portions of the front and rear portions 43A are connected to the upper end portions of the longitudinal pipe portions 42. A pair of left and right rear flange portions 43D are provided at the rear end portions of the front and rear portions 43A. The front and rear portions 43A are bolted to the ceiling of the cab 3 via a pair of left and right rear flange portions 43D. The rear flange portion 43D is formed with, for example, one bolt-fixing insertion hole 43 a. Bolt fixing sleeve portions 8b are provided on the ceiling of the cab 3 at positions corresponding to the insertion holes 43a of the rear flange portion 43D.
Left and right portions 43B are provided to linearly extend in the left-right direction of cab 3 in plan view. The left and right portions 43B are provided to extend leftward from the front and rear portions 43A. That is, the left and right portions 43B are provided to extend from the front and rear portions 43A to the side opposite to the side on which the air conditioning unit 26 and the longitudinal duct portion 42 are offset with respect to the center C1 in the left-right direction of the cab 3. Further, left and right portions 43B are provided across the left and right sides of the ceiling of cab 3. That is, the left and right portions 43B are formed so as to straddle above the left sub-seat 20L and above the right sub-seat 20R when viewed from the front.
The left and right portions 43B are disposed between the driver seat 18 and the front glass cover 16 in the front-rear direction. The left and right portions 43B are arranged to overlap the manipulation handle 19A and the seat portion 18A of the driver seat 18 in plan view. That is, the left and right portions 43B are disposed in a state of being offset to the front side with respect to the front end position P1 of the seat portion 18A of the driver seat 18.
The left and right portions 43B are formed in a substantially trapezoidal shape having a cross-sectional shape that is narrow downward when viewed from the side. The left and right portions 43B have bottom portions 43B, top plate portions 43c, front inclined portions 43d, and rear inclined portions 43 e. The front inclined portion 43d is formed to incline rearward and downward from the front end of the top plate portion 43c to the front end of the bottom portion 43 b. The rear inclined portion 43e is formed to be inclined forward and downward from the rear end of the top plate portion 43c to the rear end of the bottom portion 43 b. The left and right portions 43B are integrally formed with a bottom portion 43B, a top plate portion 43c, a front inclined portion 43d, and a rear inclined portion 43 e.
A pair of front and rear flange portions 43C are provided on the left and right portions 43B. The left and right portions 43B are bolted to the ceiling of the cab 3 via a pair of front and rear flange portions 43C. The front flange portion 43C is formed with, for example, three bolt-fixing insertion holes 43 a. Bolt fixing sleeve portions 8b are provided on the ceiling of the cab 3 at positions corresponding to the insertion holes 43a of the front flange portion 43C.
The rear inclined portions 43e of the left and right portions 43B are provided with, for example, four air outlets 44 through which air from the air conditioner 27 is blown. The air outlet 44 is provided in a state of facing the driver seat 18. The air outlet 44 is disposed above the front end position P1 of the seat portion 18A of the driver seat 18. The four air outlets 44 are arranged at equal intervals in the left-right direction, and are arranged symmetrically with respect to the center C4 in the left-right direction of the driver seat 18. Of the four air outlets 44, two air outlets 44 on the center side are arranged within the width of the driver seat 18, and the air outlet 44 on the left end and the air outlet 44 on the right end are arranged laterally outside the left end and the right end of the driver seat 18, respectively. Of the four air outlets 44, the left three air outlets 44 are disposed leftward of a center C1 in the lateral direction of cab 3, and the right air outlet 44 is disposed rightward of a center C1 in the lateral direction of cab 3. The air outlet 44 is disposed such that a center line L2 thereof extends toward the indoor air introducing portion 31 (indoor air inlet 31a) when viewed from the side. Thus, the air (cold air) from the air outlet 44 can be easily introduced directly into the air conditioner 27 through the indoor air introducing portion 31.
(second embodiment)
In the first embodiment described above, the air conditioning unit 26 is provided in a general-type combine harvester that harvests rice and the like, but may be provided in a corn harvester that harvests corn.
As shown in fig. 14 and 15, the corn harvester has a wheel type traveling device 101. The traveling device 101 has a pair of left and right front wheels 101A and a pair of left and right rear wheels 101B. A harvesting unit 102 for harvesting corn in a field is provided in front of the traveling device 101. A cab 103 covering the cab is provided behind the harvesting unit 102.
A storage box 105 (corresponding to a "storage section" of the present invention) for storing corn harvested by the harvesting section 102 is provided behind the cab 103. Between the cab 103 and the storage 105, there is a feeder 106 (corresponding to a "carrying device" of the present invention), and the feeder 106 carries the corn from the harvesting portion 102 to the storage 105. Between the feeder 106 and the holding bin 105 there is a peeling device 104, the peeling device 104 peeling the bracts of the ears of corn. Adjacent to the left side of the feeder 106 is a work table 107. The air conditioning unit 26 is disposed above the feeder 106 in a state adjacent to the feeder 106 in the up-down direction.
(other embodiments)
(1) In the first and second embodiments, the inside/outside air conditioning mechanism is not provided, but the inside/outside air conditioning mechanism 45 may be provided between the outside air introducing portion 28 and the inside air introducing portion 31.
As shown in fig. 16, the inside/outside air conditioning mechanism 45 includes an opening/closing portion 46. The opening/closing portion 46 is swingable about a swing axis X oriented in the left-right direction between a position closing the outside air inlet port 28a and a position closing the inside air inlet port 31 a. The outside air inlet 28a is closed by the opening/closing portion 46, and thereby is switched to the internal air circulation. The indoor air inlet 31a is closed by the opening/closing portion 46, and thus, the introduction of the outdoor air is switched.
(2) In the first and second embodiments, the outside air introducing unit 28 is disposed below the air conditioner 27, but may be disposed above, in front of, behind, on the left side of, or on the right side of the air conditioner 27.
(3) In the first and second embodiments, the outside air inlet 28a is provided at the lower portion of the outside air introducing portion 28, but may be provided at the upper portion, the front portion, the rear portion, the left side portion, or the right side portion of the outside air introducing portion 28.
(4) In the first and second embodiments, the outside air flows into the outside air inlet 28a from below, but the outside air may flow into the outside air inlet from above, forward, rearward, leftward or rightward.
(5) In the first and second embodiments, air conditioning box 29 is configured as upper box 35 and lower box 36 separately, but upper box 35 and lower box 36 may be configured as one body.
(6) In the first and second embodiments, the inside air introducing portion 31 and the outside air introducing portion 28 communicate with each other, but may be independent of each other.
(7) In the first and second embodiments described above, air conditioning unit 26 is disposed in the middle portion in the vertical direction of the back portion of the rear wall of cab 3(103), but may be disposed in the upper portion or lower portion of the back portion of the rear wall of cab 3 (103).
(8) In the first and second embodiments described above, the recessed portion 29A is formed in the right side portion of the air conditioning box 29, but the recessed portion 29A may be formed in the left side portion of the air conditioning box 29.
(9) In the first embodiment described above, the air conditioning unit 26 is disposed adjacent to the exhaust pipe 7B in the left-right direction, but may be disposed adjacent to the intake pipe 7A in the left-right direction.
(10) In the first embodiment, a discharge device (discharger) for discharging grain in the grain tank 5 is provided between the cab 3 and the grain tank 5. At this time, the air conditioning unit 26 may be disposed adjacent to the discharge device in the left-right direction. The primary conveyance device 6 and the discharge device may be disposed on the left side and the right side with respect to the air conditioning unit 26.
(11) In the first and second embodiments described above, the support frame 41 is supported on the rear wall of the cab 3(103) inside the cab 3(103), but may be supported on the rear wall of the cab 3(103) outside the cab 3 (103).
(12) In the first and second embodiments, the air conditioner 27 is supported on the upper side of the support frame 41 and the outside air introducing part 28 is supported on the lower side of the support frame 41, but the air conditioner 27 may be supported on the lower side of the support frame 41 and the outside air introducing part 28 may be supported on the upper side of the support frame 41.
(13) In the first and second embodiments, the air blowing duct 33 is provided in a state of being exposed to the interior of the cab 3(103), but the present invention is not limited thereto. For example, air duct 33 may be provided inside the ceiling portion of cab 3 (103).
(14) In the first and second embodiments described above, the connection portion 42C between the air conditioning unit 26 and the air supply duct 33 is provided in the air supply duct 33, but may be provided in the air conditioning unit 26.
(15) In the first and second embodiments, the connection portion 42C between the air conditioning unit 26 and the air blowing duct 33 is provided so as to penetrate the rear wall of the cab 3(103), but may be provided so as to penetrate the left side wall, right side wall, or ceiling portion of the cab 3 (103). Further, although the connection portion 42C between the air conditioning unit 26 and the air duct 33 penetrates through the portion of the rear wall of the cab 3(103) that faces the air conditioning unit 26, it may penetrate through portions other than the portion of the rear wall of the cab 3(103) that faces the air conditioning unit 26.
(16) In the first and second embodiments described above, the left and right portions 43B of the lateral duct portion 43 are provided so as to straddle the left and right sides of the cab 3(103), but the present invention is not limited to this. For example, the left and right portions 43B of the lateral duct portion 43 may be provided only on the left side, the right side, or the center in the left-right direction of the cab 3 (103).
(17) In the first and second embodiments described above, the left and right portions 43B of the lateral duct portion 43 are provided so as to linearly extend in the left-right direction of the cab 3(103) in a plan view, but the present invention is not limited to this. For example, the left and right portions 43B of the lateral duct portion 43 may be formed to be curved or bent in a state of being convex toward the front side of the cab 3(103) in a plan view.
(18) In the first and second embodiments described above, the left and right portions 43B of the lateral duct portion 43 are disposed in a state of being offset to the front side with respect to the front end position P1 of the seat portion 18A of the driver seat 18, but the present invention is not limited to this. For example, the left and right portions 43B of the lateral duct portion 43 may be disposed in a state of being shifted to the rear side with respect to the front end position P1 of the seat portion 18A of the operating seat 18, or the center in the front-rear direction of the left and right portions 43B of the lateral duct portion 43 may be disposed in a state of being positioned on the front end position P1 of the seat portion 18A of the operating seat 18. The left and right portions 43B may be disposed directly above the driver seat 18.
(19) In the first and second embodiments described above, the air outlet 44 is provided only in the left and right sections 43B, but may be provided in the left and right sections 43B and the front and rear sections 43A, or may be provided only in the front and rear sections 43A. Further, four air outlets 44 are provided, but three or less, or five or more air outlets 44 may be provided.
(20) In the first and second embodiments described above, the air outlet 44 is provided in a state of facing the driver seat 18, but the present invention is not limited to this. For example, instead of or in addition to this configuration, the outlet may be provided in a state facing the front glass cover 16. That is, the air outlet may be provided in the front inclined portion 43d of the left and right portions 43B.
(21) In the first and second embodiments described above, the air conditioning unit 26 is disposed in a state of being offset to the right side with respect to the center C1 in the left-right direction of the cab 3(103), but the present invention is not limited to this. For example, air conditioning unit 26 may be disposed in a state of being shifted to the left side with respect to center C1 in the left-right direction of cab 3(103), or may be disposed in a state of being located at center C3 in the left-right direction of air conditioning unit 26 on center C1 in the left-right direction of cab 3 (103).
(22) In the first and second embodiments described above, the vertical duct portion 42 is disposed in a state shifted to the right side with respect to the center C3 in the left-right direction of the air conditioning unit 26, but the present invention is not limited to this. For example, the vertical duct part 42 may be disposed in a state of being shifted to the left side with respect to the center C3 in the left-right direction of the air conditioning unit 26, or may be disposed in a state of being located at the center C3 in the left-right direction of the air conditioning unit 26.
(23) In the first and second embodiments, the operation unit 32 is provided on the rear wall inside the cab 3(103), but may be provided on the left side wall, the right side wall, or the ceiling inside the cab 3 (103).
(24) In the first and second embodiments described above, the air conditioning unit 26 is disposed below the rear window 17, but may be disposed above, to the left, or to the right of the rear window 17.
(25) In the first and second embodiments described above, the air conditioner 27 has only a cooling function (does not have a heating function), but may have only a heating function (does not have a cooling function), and may have both a cooling function and a heating function.
(26) In the first and second embodiments, the traveling device 1(101) is a wheel type, but may be a crawler type.
The present invention is not limited to the contents of the first and second embodiments and the other embodiments described above, and various other modifications are possible.
(availability in industry)
The present invention can be used for a general-purpose combine harvester and a corn harvester having a wheel-type traveling device, and a general-purpose combine harvester and a corn harvester having a crawler-type traveling device. Further, the present invention can be applied to agricultural working machines such as a semi-feeding type combine harvester and a tractor, and construction working machines.
Description of the reference numerals
2: reaping part (reaping part)
3: driver's cabin
5: grain box (storage part)
6: one-time carrying device (carrying device)
7: engine
7A: air suction pipe
7B: exhaust pipe
12: rear longitudinal frame (cab frame)
14: rear lower horizontal frame (cab frame)
16: front glass cover
17: rear window part
18: driving seat
26: air conditioning unit
27: air conditioner
28: external air introducing part
28 a: external air inlet
29: air-conditioning box
29A: concave part
31: inner air introducing part
31 a: inner airflow inlet
34: external filter (Filter)
41: supporting frame
45: internal and external air regulating mechanism
41C: placing part
32: operation part
33: air supply duct
42: longitudinal duct part
42C: connecting part
43: transverse duct part
43B: left and right parts
44: blow-out opening
102: harvesting part
103: driver's cabin
105: storage box (storage part)
106: feeder (carrying device)
C1: center of cab in right and left directions
C3: center of air conditioning unit in left-right direction

Claims (34)

1. A working machine is characterized in that a working machine body,
comprising: a cab covering the cab;
an air conditioning device that conditions air in the cab;
an outside air introducing unit that introduces outside air into the air conditioning apparatus;
an air conditioning unit integrally including the air conditioning device and the outside air introducing unit; and
a rear window portion provided on a rear wall of the cab in a state of being positioned laterally across at a position higher than a backrest portion of the driver seat,
the air conditioning unit is disposed below the rear window portion in a state of being biased to one side in the left-right direction of the driver seat,
the working machine is provided with an air supply duct which supplies air from the air conditioning device into the cab,
the air supply duct penetrates through a rear wall of the cab from the air conditioning unit, extends in a vertical direction along the rear wall of the cab in a state of being exposed to the interior of the cab at a position laterally adjacent to one side of the driver's seat in the left-right direction and overlapping the rear window portion when viewed from the rear side,
the work machine includes: a harvesting part for harvesting crops in farmland;
a storage unit disposed behind the cab and configured to store the crop harvested by the harvesting unit; and
a carrying device provided between the cab and the storage unit, for carrying the crop harvested by the harvesting unit to the storage unit,
a connecting portion between the inlet of the storage portion and the outlet of the transport device overlaps the rear window portion when viewed from the rear side on the other side in the left-right direction of the driver seat.
2. A working machine is characterized in that a working machine body,
comprising: a cab covering the cab;
an air conditioning device that conditions air in the cab;
an outside air introducing unit that introduces outside air into the air conditioning apparatus;
an air conditioning unit integrally including the air conditioning device and the outside air introducing unit; and
a rear window portion provided on a rear wall of the cab in a state of being positioned laterally across at a position higher than a backrest portion of the driver seat,
the air conditioning unit is disposed below the rear window portion in a state of being biased to one side in the left-right direction of the driver seat,
the working machine is provided with an air supply duct which supplies air from the air conditioning device into the cab,
the air supply duct penetrates through a rear wall of the cab from the air conditioning unit, extends in a vertical direction along the rear wall of the cab in a state of being exposed to the interior of the cab at a position laterally adjacent to one side of the driver's seat in the left-right direction and overlapping the rear window portion when viewed from the rear side,
the work machine includes: a harvesting part for harvesting crops in farmland;
a storage unit disposed behind the cab and configured to store the crop harvested by the harvesting unit;
a transport device that is provided between the cab and the storage unit and transports the crop harvested by the harvesting unit to the storage unit; and
a work table disposed adjacent to the conveying device in the left-right direction in a state of being biased toward the other side in the left-right direction of the driver seat,
the work table is provided at a position lower than the rear window portion,
the storage unit extends to a position higher than the work table.
3. The work machine according to claim 1 or 2,
the air conditioning device is disposed in a state of being adjacent to a rear wall of the cab at the rear of the cab,
the air conditioner is provided in a state of projecting rearward from a rear wall of the cab.
4. The work machine according to claim 1 or 2,
the outside air introducing unit is disposed adjacent to the air conditioner below the air conditioner.
5. The work machine according to claim 1 or 2,
the outside air introducing unit is disposed along a rear wall of the cab in a state of being adjacent to the rear wall of the cab behind the cab.
6. The work machine according to claim 1 or 2,
an outside air inlet of the outside air introducing unit, into which outside air flows, is provided at a lower portion of the outside air introducing unit, and the outside air is introduced from below, and the outside air inlet is disposed adjacent to a rear wall of the cab.
7. The work machine according to claim 1 or 2,
the air conditioning unit is disposed in a state of being adjacent to a rear wall of the cab at the rear of the cab,
the working machine is provided with an inner air introducing part which introduces air in the cab into the air conditioning device,
the inside air introduction part is provided at a rear wall of the cab,
the inside air introduction part is communicated with the outside air introduction part.
8. The work machine of claim 7,
the inside air introduction part is provided at a portion of a rear wall of the cab adjacent to the outside air introduction part.
9. The work machine of claim 7,
the outside air introducing part has an air cleaning filter,
the filter and the inner air introduction part are disposed in a state of facing each other.
10. The work machine of claim 9,
the filter is disposed between an outside air inlet of the outside air introducing part into which outside air flows and an inside air inlet of the inside air introducing part into which inside air flows.
11. The work machine of claim 7,
an inside/outside air adjusting mechanism that adjusts an introduction ratio between the outside air from the outside air introducing portion and the inside air from the inside air introducing portion is provided between the outside air introducing portion and the inside air introducing portion.
12. The work machine according to claim 1 or 2,
the air conditioning unit is disposed in a state of being adjacent to a rear wall of the cab at the rear of the cab,
the air conditioning unit has an air conditioning case that houses the air conditioning device,
the air conditioning device is configured in a state of being covered by the air conditioning box and a rear wall of the cab.
13. A working machine is characterized in that a working machine body,
comprising: a cab covering the cab;
an air conditioning unit having an air conditioning device that conditions air of the cab; and
a rear window portion provided on a rear wall of the cab in a state of being positioned laterally higher than a backrest portion of the driver seat,
the air conditioning unit is supported on a rear wall of the cab in a state of being located behind the cab,
the air conditioning unit is disposed below the rear window portion in a state of being biased to one side in the left-right direction of the driver seat,
the working machine is provided with an air supply duct which supplies air from the air conditioning device into the cab,
the air supply duct penetrates through a rear wall of the cab from the air conditioning unit, extends in a vertical direction along the rear wall of the cab in a state of being exposed to the interior of the cab at a position laterally adjacent to one side of the driver's seat in the left-right direction and overlapping the rear window portion when viewed from the rear side,
the work machine includes: a harvesting part for harvesting crops in farmland;
a storage unit disposed behind the cab and configured to store the crop harvested by the harvesting unit; and
a carrying device provided between the cab and the storage unit, for carrying the crop harvested by the harvesting unit to the storage unit,
a connecting portion between the inlet of the storage portion and the outlet of the conveying device overlaps the rear window portion when viewed from the rear side on the other side in the left-right direction of the driver seat.
14. A working machine is characterized in that a working machine body,
comprising: a cab covering the cab;
an air conditioning unit having an air conditioning device that conditions air of the cab; and
a rear window portion provided on a rear wall of the cab in a state of being positioned laterally higher than a backrest portion of the driver seat,
the air conditioning unit is supported on a rear wall of the cab in a state of being located behind the cab,
the air conditioning unit is disposed below the rear window portion in a state of being biased to one side in the left-right direction of the driver seat,
the working machine is provided with an air supply duct which supplies air from the air conditioning device into the cab,
the air supply duct penetrates through a rear wall of the cab from the air conditioning unit, extends in a vertical direction along the rear wall of the cab in a state of being exposed to the interior of the cab at a position laterally adjacent to one side of the driver's seat in the left-right direction and overlapping the rear window portion when viewed from the rear side,
the work machine includes: a harvesting part for harvesting crops in farmland;
a storage unit disposed behind the cab and configured to store the crop harvested by the harvesting unit; and
a transport device that is provided between the cab and the storage unit and transports the crop harvested by the harvesting unit to the storage unit; and
a work table disposed adjacent to the conveying device in the left-right direction in a state of being biased toward the other side in the left-right direction of the driver seat,
the work table is provided at a position lower than the rear window portion,
the storage unit extends to a position higher than the work table.
15. The work machine according to claim 13 or 14,
the air conditioning unit is disposed at a middle portion in a vertical direction of a back portion of a rear wall of the cab,
the air conditioning unit is provided in a state of projecting rearward from a rear wall of the cab.
16. The work machine according to claim 13 or 14,
the air conditioning unit is disposed between the cab and the storage unit.
17. The work machine of claim 16,
the air conditioning unit is disposed adjacent to the conveyance device in the left-right direction.
18. The work machine of claim 16,
the air conditioning unit is disposed adjacent to the conveyance device in the vertical direction.
19. The work machine according to claim 13 or 14,
the air conditioning unit has an air conditioning case that houses the air conditioning device,
the air conditioning case is provided with a recessed portion into which an accessory attached to the air conditioning unit enters.
20. The work machine according to claim 13 or 14,
at least one of an engine intake pipe and an exhaust pipe is provided behind the cab,
the conveyance device and at least one of the intake pipe and the exhaust pipe are respectively disposed on one side in the left-right direction and the other side in the left-right direction with the air conditioning unit interposed therebetween.
21. The work machine according to claim 13 or 14,
a discharge device between the cab and the storage part, the discharge device discharging the crop in the storage part,
the carrying device and the discharge device are respectively arranged on one side in the left-right direction and the other side in the left-right direction, which sandwich the air conditioning unit.
22. The work machine according to claim 13 or 14,
the air conditioning unit is supported on a rear wall of the cab in a state of being located behind the cab,
a support frame is supported on the rear wall of the cab, and the support frame supports the air conditioning unit.
23. The work machine of claim 22,
the support frame is supported by a cab frame that constitutes a rear wall of the cab.
24. The work machine of claim 22,
the support frame is supported on a rear wall of the cab inside the cab,
the support frame has a placement portion on which the air conditioning unit is placed,
the mounting portion is provided in a state of penetrating through a rear wall of the cab and protruding rearward from the rear wall of the cab.
25. The work machine of claim 22,
the air conditioning unit includes an outside air introducing part for introducing outside air into the air conditioning apparatus,
the air conditioner is disposed on the upper side of the support frame,
the outside air introducing unit is disposed below the support frame.
26. The work machine according to claim 13 or 14,
the air conditioning unit is disposed outside the cab,
the air conditioning unit is connected to the air supply duct at a connection portion thereof so as to penetrate through a rear wall of the cab.
27. The work machine according to claim 13 or 14,
the air supply duct is provided along an inner side surface of the cab.
28. The work machine according to claim 13 or 14,
the air supply duct has a cross duct portion provided along a ceiling of the cab,
the lateral duct portion has left and right portions extending in the left-right direction of the cab,
the left and right portions of the lateral duct portion are formed across one side in the left-right direction and the other side in the left-right direction of the cab,
the left and right portions of the lateral duct portion are disposed between a driver seat provided in the driver's cabin and a front glass cover provided on a front surface of the driver's cabin in a front-rear direction of the driver's cabin,
an air outlet that blows air from the air conditioner is provided in the lateral duct portion,
the air outlet is provided at the left and right portions of the horizontal duct portion.
29. The work machine of claim 28,
the air outlet is provided in a state of facing a driver seat provided in the driver section.
30. The work machine of claim 28,
the air outlet is provided in a state of facing the front glass cover.
31. The work machine according to claim 13 or 14,
the air supply duct has a vertical duct portion extending upward from the air conditioning unit,
the longitudinal duct portion is provided along an inner side surface of a rear wall of the cab.
32. The work machine of claim 31,
the air conditioning unit is disposed in a state of being offset to one side in the left-right direction with respect to the center in the left-right direction of the cab,
the vertical duct portion is disposed in a state of being offset to the one side in the left-right direction with respect to a center in the left-right direction of the air conditioning unit.
33. The work machine of claim 31,
the air supply duct has a cross duct portion provided along a ceiling of the cab,
the lateral duct portion is disposed above the rear window portion,
the longitudinal duct portion is provided so as to extend in the vertical direction of the rear window portion.
34. The work machine according to claim 13 or 14,
the air conditioning unit is disposed in a state of being adjacent to a rear wall of the cab at the rear of the cab,
a connecting portion between the air conditioning unit and the air supply duct is provided in a state of penetrating a rear wall of the cab,
the connecting portion penetrates through a portion of a rear wall of the cab that faces the air conditioning unit.
CN201480079207.0A 2014-08-05 2014-08-05 Working machine Active CN106457957B (en)

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EP3636467B1 (en) * 2018-10-10 2023-02-22 Kubota Corporation Working vehicle

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