JP6226740B2 - Combine - Google Patents

Description

  The present invention relates to a combine equipped with a cabin on which a driver is boarded and an air conditioner unit that air-conditions the cabin.

  As such a combine, for example, a combine described in Patent Document 1 is already known. In the combine described in Patent Literature 1, the air conditioner unit (in the literature, the air conditioner [31]) is placed in the front portion of the roof portion (in the literature, the ceiling portion [25]) of the cabin (in the literature, the operation cabin [6]). Decorated.

Japanese Patent Application Laid-Open No. 2004-114749

  In the conventional combine, the air conditioning unit is located at the front portion in the roof portion, so that the space on the front side of the driver is narrowed, so that the driver is likely to feel pressure from the ceiling portion in the cabin. For example, when a driver looks into the lower part of the front of the aircraft in a forward-bending posture in order to visually recognize the state of cereal conveyance, cut marks, etc., the head is likely to hit the ceiling in the cabin.

  In view of the above situation, there is a demand for a combine that can reduce the feeling of pressure on the driver by the ceiling in the cabin.

The feature of the present invention is that
A cabin on which the driver is boarded;
A cutting part that is located in front of the cabin and cuts the planted cereals,
A driver seat on which a driver sits in the cabin;
A windshield provided on the front surface of the cabin and extending from the upper part of the cabin to below the seat surface of the driver seat;
An air conditioner unit for air conditioning the cabin,
The air conditioner unit is installed in a rear portion of the roof portion of the cabin,
A left frame that extends in the longitudinal direction of the aircraft and supports the left side of the roof portion and a right frame that extends in the longitudinal direction of the aircraft and supports the right side of the roof portion are provided on the upper portion of the cabin.
A housing portion that houses the air conditioner unit is formed in a portion extending between the left frame and the right frame in a rear portion of the roof portion in a state of protruding rearward from a rear wall portion of the cabin,
The air conditioner unit is accommodated in the accommodating portion in a state where the air conditioner unit is located at a height position overlapping with the upper and lower ranges of the left frame and the right frame ,
The mounting portion for mounting and supporting the air conditioner unit includes a left rear vertical frame that supports the left side portion of the rear wall portion and a right rear portion that supports the right side portion of the rear wall portion at the upper portion of the rear wall portion. And the mounting portion is formed by bending the upper portion of the rear wall portion in a side view,
The air conditioner unit is a left stay that is connected to the left end of the mounting unit in a cantilevered manner, and a right stay that is connected to the right end of the mounting unit in a cantilevered manner to project backward. , Is placed on and supported by the mounting portion described above,
The rear end portion of the left frame extends to the left end portion of the mounting portion and is connected to the left stay,
The rear end portion of the right frame extends to the right end portion of the mounting portion and is connected to the right stay .

According to this characteristic configuration, since the air-conditioner unit is arranged at the rear part in the roof part, the space above the driver's head can be widened, so that the feeling of pressure on the driver by the ceiling part in the cabin is provided. Can be reduced. For example, it is difficult for the driver to hit his head against the ceiling in the cabin when the driver looks into the lower front of the aircraft in a forward-bent posture in order to visually check the grain transport status, cut marks, and the like. Further, since the windshield extends from the upper part of the cabin to below the seat surface of the driver's seat, the driver can visually recognize the front of the aircraft in a wide range through the windshield in the vertical direction.
In addition, according to this feature configuration, the capacity of the accommodating portion can be increased, so even a large air conditioner unit that is less expensive than a small air conditioner unit can be accommodated without difficulty.

Furthermore, in the present invention,
It is preferable that the air conditioner unit is disposed between the left frame and the right frame so as to overlap the left frame and the right frame in a side view .
Et al, in the present invention is,
The roof portion has an inner roof and an outer roof,
It is preferable that a recessed portion that is recessed upward is formed in a portion of the inner roof in front of the air conditioner unit.

  According to this feature configuration, since the recessed portion exists above the driver's head, the space above the driver's head is further widened, further reducing the feeling of pressure on the driver by the ceiling in the cabin. can do.

Furthermore, in the present invention,
It is preferable that the recessed portion extends forward from the front end of the seat surface of the driver seat.

  According to this characteristic configuration, when looking into the lower part in front of the fuselage, it is difficult for the driver to hit the head against the ceiling in the cabin even if the driver is bent forward far forward from the front end of the seat surface of the driver seat.

Furthermore, in the present invention,
It is preferable that the recessed portion extends from the rear to the front rather than the backrest of the driver seat.

  According to this characteristic configuration, it is difficult to hit the head against the ceiling in the cabin even if the posture is such that the waist is lifted from the driver's seat.

Furthermore, in the present invention,
A steering operation tool is provided in front of the driver seat,
It is preferable that the recess is formed so as to extend from above the steering operation tool to above the driver seat.

  According to this feature configuration, even if the driver steers the aircraft with the steering operation tool, even if the driver looks into the lower front of the aircraft with a forward bending posture or floats from the driver's seat It is hard to hit the head against the ceiling in the cabin.

Furthermore, in the present invention,
It is preferable that the recessed portion is formed so as to extend from the front upper portion to the rear upper portion of the floor portion of the cabin.

  According to this characteristic configuration, even if the driver moves on the floor part across the front part and the rear part, it is difficult to hit the head against the ceiling part in the cabin.

Furthermore, in the present invention,
It is preferable that the recessed portion is formed so as to extend from the front portion of the indoor ceiling portion constituted by the inner roof to the rear portion of the ceiling portion.

  According to this characteristic configuration, even if the driver moves below the ceiling part in the cabin over the front part and the rear part, it is difficult to hit the head against the ceiling part in the cabin.

Furthermore, in the present invention,
A rear wall is formed at the rear of the recessed portion,
The rear wall portion of the recessed portion is preferably formed so as to incline forward.

  According to this characteristic configuration, a wide and smooth space can be secured behind the rear wall portion. By using the space, it becomes easy to arrange an air conditioner unit and other devices related to the air conditioner unit.

Furthermore, in the present invention,
It is preferable that an inlet for introducing the inside air of the cabin into the air conditioner unit is formed in the rear wall portion of the recessed portion.

  According to this characteristic configuration, since the introduction port is located in the vicinity of the air conditioner unit, the introduction of the inside air into the air conditioner unit is smooth.

Furthermore, in the present invention,
A switching mechanism is provided between the air conditioner unit and the rear wall of the recessed portion for switching between introducing the inside air of the cabin or the outside air of the cabin into the air conditioner unit. It is preferable.

  According to this characteristic configuration, the switching mechanism can be arranged using a portion between the air conditioner unit and the rear wall portion in the space behind the rear wall portion. That is, the air conditioner unit and the switching mechanism can be collectively arranged in a space behind the rear wall portion.

Furthermore, in the present invention,
A front wall portion is formed at the front portion of the recessed portion,
It is preferable that an electronic device disposition space for disposing electronic devices is formed between the front wall portion and the outer roof.

  According to this characteristic configuration, the space (dead space) between the front wall portion and the outer roof can be effectively used as the electronic device installation space.

Furthermore, in the present invention,
It is preferable that an electronic device operation unit for operating the electronic device is provided on a front wall portion of the recessed portion.

  According to this characteristic configuration, since the electronic device operation unit is located on the front side of the driver, the driver's hand can easily reach the electronic device operation unit.

Furthermore, in the present invention,
It is preferable that an air conditioner operation unit for operating the air conditioner unit is included in the electronic device operation unit.

  According to this characteristic configuration, it is easy for the driver to reach the air conditioner operation unit. Therefore, it is convenient to perform frequent air volume adjustment, temperature adjustment, and the like by the air conditioner operation section.

Furthermore, in the present invention,
It is preferable that a blower outlet for the air conditioner unit is formed in a portion of the inner roof below the electronic device installation space.

  According to this characteristic configuration, the air conditioned by the air conditioner unit blows out directly from the air outlet near the front wall portion of the recessed portion, so that it can be directly blown even to a driver working in a forward bending posture. Can do.

Furthermore, in the present invention,
A side panel on which operating tools are disposed is disposed on at least one of the left and right sides with respect to the driver seat,
It is preferable that an instrument panel in which instruments are arranged is connected to the side panel.

  According to this characteristic configuration, since the instrument panel is supported by the stable side panel, the instrument panel can be stably supported.

Furthermore, in the present invention,
The roof portion has an inner roof and an outer roof,
A recessed portion that is recessed upward is formed in a portion of the inner roof in front of the air conditioner unit,
It is preferable that the recessed portion extends forward to the vicinity of a connection boundary between the side panel and the instrument panel.

  According to this characteristic configuration, since the recessed portion exists up to the vicinity of the connection boundary between the side panel and the instrument panel, when the driver visually recognizes the instrument panel in a forward bending posture, it is formed on the ceiling portion in the cabin. Hard to hit the head.

Furthermore, in the present invention,
The roof portion has an inner roof and an outer roof,
A recessed portion that is recessed upward is formed in a portion of the inner roof in front of the air conditioner unit,
It is preferable that an air passage for the air conditioner unit is provided in at least one of the left and right sides of the recessed portion between the inner roof and the outer roof.

  According to this characteristic configuration, the air passage can be extended to the front portion of the roof portion without interfering with the recessed portion. Therefore, the air conditioned by the air conditioner unit can be supplied to the front part in the cabin by the air passage.

Furthermore, in the present invention,
It is preferable that an air outlet for the air conditioner unit is formed in a portion of the recessed portion facing the air passage.

  According to this characteristic configuration, since the air outlet and the air passage are close to each other, the connection portion between the air outlet and the air passage does not have to be long.

Furthermore, in the present invention,
It is preferable that a blower outlet for the air conditioner unit is formed in a front portion and a rear portion of the roof portion.

  According to this characteristic configuration, the air conditioned by the air conditioner unit can be supplied evenly over the entire area in the front-rear direction in the cabin by the front outlet and the rear outlet.

Furthermore, in the present invention,
An air passage for the air conditioner unit is formed in the roof portion,
It is preferable that a narrowed portion whose diameter decreases toward the downstream side in the air flow direction is formed between the air outlets in the air blowing path.

  According to this feature configuration, the wind speed of the air flowing through the air passage is increased at the throttle portion, so the draft feeling is improved.

Furthermore, in the present invention,
It is preferable that the air conditioner unit is disposed on an upper portion of a rear wall portion of the cabin.

  According to this characteristic configuration, since the air conditioner unit is supported by the stable rear wall, the air conditioner unit can be stably supported.

Furthermore, in the present invention,
Behind the cabin, a grain storage unit for storing the grain is provided,
It is preferable that the grain storage portion is disposed below a portion of the housing portion that protrudes rearward from the rear wall portion of the cabin.

  According to this feature configuration, the storage unit and the grain storage unit do not interfere with each other. Therefore, in order to avoid interference between the storage part and the grain storage part, it is necessary to widen the front-rear distance between the cabin and the grain storage part (shifting the cabin forward, shifting the grain storage part backward, or both) There is no such thing as the front and rear length of the entire aircraft becoming longer.

Furthermore, in the present invention,
It is preferable that a window portion is provided in the rear wall portion of the cabin.

  According to this characteristic configuration, the situation behind the cabin can be easily visually recognized through the window without going out of the cabin.

Furthermore, in the present invention,
It is preferable that the above combine is applied to an ordinary combine.

  In the case of a normal combine, it is considered that the driver can easily see the lower part in front of the fuselage and the frequency is higher than that of the self-removing combine because the pulling device like the self-removing combine is not provided. According to this characteristic configuration, the visibility of the front lower part of the fuselage can be dramatically improved in the ordinary combine that is frequently viewed by the driver.

It is a right view which shows a normal type combine. It is a top view which shows a normal type combine. It is a right view which shows a cabin. It is a rear view which shows a cabin. It is a front view which shows a cabin. It is a plane sectional view showing a cabin. It is right side sectional drawing which shows a cabin. (A) It is right side sectional drawing which shows the front part of a roof part. (B) It is a disassembled perspective view which shows the attachment structure of a motor. It is right side sectional drawing which shows the front-end part in the floor part of a cabin. (A) It is a front view which shows the connection structure of a side panel and an instrument panel. (B) It is a left view which shows the connection structure of a side panel and an instrument panel. (A) It is side surface sectional drawing which shows the airtight structure of a transmission lever. (B) It is front sectional drawing which shows the airtight structure of a transmission lever. It is a plane sectional view showing a roof part. It is a plane sectional view showing the rear part of a roof part. It is right side sectional drawing which shows the rear part of a roof part. It is a perspective view which shows an aperture_diaphragm | restriction part. It is front sectional drawing which shows a suction inlet. (A) It is a figure which shows the state which the shutter has closed the internal air inlet. (B) It is a figure which shows the state which the shutter has closed the external air inlet. It is a right view which shows the state which has arrange | positioned the precleaner in the recessed part. It is a rear view which shows the state which has arrange | positioned the precleaner in the recessed part. (A) It is a top view which shows the support structure of a compressor. (B) It is a side view which shows the support structure of a compressor. (A) It is side surface sectional drawing which shows the airtight structure of the operation lever which concerns on 1st another embodiment. (B) It is plane sectional drawing which shows the airtight structure of the operation lever which concerns on 1st another embodiment. It is a disassembled perspective view which shows the airtight structure of the operation lever which concerns on 1st another embodiment. It is a disassembled perspective view which shows the airtight structure of the operation lever which concerns on 2nd another embodiment.

  EMBODIMENT OF THE INVENTION The form for implementing this invention is demonstrated based on drawing.

[Overall configuration of ordinary combine]
1 and 2 show an ordinary combine. At the front part of the combine, there is a cutting part 1 for cutting the planted cereal. The reaping unit 1 includes a pair of left and right weeding tools 2 that divide the planted cereal into a culm that is to be harvested and a cereal that is not to be harvested, a cutting device 3 that cuts the planted cereal, and the harvested cereal A scratching auger 4 is provided. A crawler type traveling device 5 for traveling the machine body is provided behind the cutting unit 1. An airframe frame 6 is provided on the upper part of the traveling device 5. On the left side of the machine body frame 6, a threshing device 7 for threshing the harvested cereal meal is provided.

  A cabin 8 and an engine 9 on which a driver gets on are provided on the right front portion on the body frame 6. A grain tank 10 (corresponding to a “grain storage unit” according to the present invention) that stores the grain is provided in a state of being lined up with the threshing device 7 in the left-right direction at the right rear part on the machine body frame 6. The grain tank 10 is provided with an unloader 11 for taking out the grains in the grain tank 10. The unloader 11 is supported by the unloader receiver 12.

〔cabin〕
As shown in FIGS. 3 to 7, a windshield 13 is provided on the front surface of the cabin 8. On the left side of the cabin 8, a front-rear sliding window 14 is provided. A fixed window 16 is provided on the rear wall 15.

  The window portion 16 is fitted into the opening of the rear wall portion 15 via an H rubber 17 and is fixed by a wedge rubber 18. Thus, conventionally, when the window portion 16 is bonded, a waiting time until the adhesive dries and a dam dam for the adhesive are necessary. However, since these are unnecessary, the number of manufacturing steps can be reduced. .

  A door 19 that can be opened and closed is provided on the right side of the cabin 8. The rear end of the door 19 is supported so as to be swingable about a vertical axis. The door 19 is provided with a front-and-back sliding window 20. Further, a handrail 21 for getting on and off is provided at the front end of the right side of the cabin 8. A rearview mirror 22 is attached to the handrail 21.

  A pair of left and right front vertical frames 24 that extend in the vertical direction and support the front portion of the roof portion 80 are provided at the front portion of the cabin 8. A pair of left and right rear vertical frames 25 that extend in the vertical direction and support the rear portion of the roof portion 80 are provided at the rear portion of the cabin 8. The left and right sides of the rear wall portion 15 are connected to the pair of left and right rear vertical frames 25, respectively. The lower ends of the pair of left and right rear vertical frames 25 are connected by a horizontal frame 26 extending in the left-right direction. The lower end of a pair of left and right rear vertical frames 25 is connected to the upper surface of the horizontal frame 26. The horizontal frame 26 extends in the left-right direction from the pair of left and right rear vertical frames 25. A right end portion of the horizontal frame 26 is formed to be bent forward, and is connected to the door 19 to the frame.

  In the cabin 8, a driver seat 27 on which a driver sits, a steering lever 28 (corresponding to a “steering operation tool” according to the present invention) for performing a steering operation of the aircraft, and instruments 29 are arranged. An installed instrument panel 30 and a side panel 31 are provided. In the cabin 8, a middle space S <b> 1 that is a space in front of the driver seat 27, a right space S <b> 2 that is an obliquely lower right front space of the driver seat 27, and a left space S <b> 3 that is an obliquely lower left front space of the driver seat 27. Is formed. A floor mat 32 is laid on the floor 49 in the cabin 8. A rising portion 33 is formed at the front end of the floor mat 32.

[Side panel]
The side panel 31 is disposed on the left side in the cabin 8 (left side with respect to the driver seat 27). The side panel 31 is provided with a transmission lever 34, a clutch lever 35, a side operation panel 36, an unloader remote controller 37, and the like. The transmission lever 34, the clutch lever 35, the side operation panel 36, and the unloader remote controller 37 correspond to “operating tools” according to the present invention. The shift lever 34 is for performing a shift operation of a hydrostatic continuously variable transmission (not shown) that shifts the power from the engine 9. The clutch lever 35 is for performing a switching operation of a clutch (not shown) that transmits or blocks power to the threshing device 7 and a switching operation of a clutch (not illustrated) that transmits or blocks power to the reaping unit 1. is there. The unloader remote controller 37 is for operating the unloader 11.

[Instrument panel]
The instrument panel 30 is arranged on the left side in the cabin 8 (left side with respect to the driver seat 27). The instrument panel 30 is provided with, for example, a working speed meter 38 that displays an actual working vehicle speed as a measuring instrument 29 at the center, and an engine tachometer 39 and a fuel gauge 40 on both sides thereof. The instrument panel 30 is connected to the front end portion of the side panel 31 in a cantilever manner via a stay 41 so as to protrude from the front end portion of the side panel 31 toward the front right side.

[Steering lever]
The steering lever 28 is disposed on the right side in the cabin 8 (right side with respect to the driver seat 27). The steering lever 28 is cantilevered on the right side of the pair of left and right front vertical frames 24. Specifically, the power steering unit 42 is fixed to the right side of the pair of left and right front vertical frames 24, and the steering lever 28 is supported by the power steering unit 42 so as to be swingable in the cross direction (front-rear direction and left-right direction). Has been. The power steering unit 42 is provided with a key switch 43 and a combination switch 44, and an armrest 45 for a driver who operates the steering lever 28 to place his / her wrist.

〔windshield〕
The windshield 13 extends over the upper end portion and the lower end portion of the front surface of the cabin 8. The windshield 13 is made of a single tempered glass, but may be made of a single laminated glass. The windshield 13 extends from the roof portion 80 to below the seat surface of the driver seat 27. A lower end portion of the windshield 13 is supported by the front lower wall portion 46. The upper end portion of the windshield 13 is supported by the front upper wall portion 47. The left end portion and the right end portion of the windshield 13 are respectively supported by a pair of left and right front vertical frames 24. A wiper 48 for wiping the upper outer surface of the windshield 13 is provided on the windshield 13.

  The windshield 13 is formed in a curved shape that bulges forward from the front end of the floor 49 in a side view. Specifically, when the windshield 13 is viewed from the side, the inclination angle θ1 with respect to the horizontal plane of the upper portion of the windshield 13 is larger than the inclination angle θ2 with respect to the horizontal plane of the lower portion of the windshield 13, and It is formed in a curved shape that bulges forward so as to be positioned rearward as it approaches the lower end. Moreover, the windshield 13 is formed in the curved shape located back, so that it approaches the left end part and the right end part in planar view. Thus, the windshield 13 is formed in the three-dimensional curved surface shape which curves in the up-down direction and the left-right direction.

[Front upper wall]
As shown in FIG. 8, the front upper wall portion 47 is connected to the front upper frame 66 so as to hang down from the lower surface of the front upper frame 66. The front upper wall portion 47 is configured separately from the front upper frame 66, but may be configured integrally with the front upper frame 66. The front upper wall portion 47 extends in the vertical direction between the lower end of the front upper frame 66 and the upper end of the windshield 13, and extends in the left-right direction between the left end and the right end of the upper end portion of the windshield 13. An upper end portion of the windshield 13 is overlapped and connected to the front surface of the front upper wall portion 47. An upper end portion of the windshield 13 is supported on a portion of the front upper wall portion 47 below the motor shaft 50a. The front upper wall 47 is made of, for example, an iron plate.

[Front lower wall]
As shown in FIG. 9, the front lower wall portion 46 is connected to the front end of the floor portion 49 so as to incline forward. The front lower wall portion 46 is configured separately from the floor portion 49, but may be configured integrally with the floor portion 49. The front lower wall portion 46 extends in the vertical direction between the lower end of the windshield 13 and the front end of the floor portion 49, and extends in the left-right direction between the left end and the right end of the lower end portion of the windshield 13. The lower end portion of the windshield 13 is overlapped and connected to the front surface of the front lower wall portion 46. The left end portion and the right end portion of the front lower wall portion 46 are bent backward. The front lower wall portion 46 is made of, for example, an iron plate.

[Rising part]
The rising portion 33 extends over the left end and the right end at the front end of the floor mat 32. The rising portion 33 is formed integrally with the rubber floor mat 32, for example, but may be formed separately. The front surface of the rising portion 33 is formed substantially vertically, and the rear surface of the rising portion 33 is formed so as to be inclined upward. The upper end of the rising portion 33 is set at a position higher than the upper end of the front lower wall portion 46. A gap D is formed between the rising portion 33 and the inner surface (rear surface) of the lower end portion of the windshield 13 and the rear surface of the front lower wall portion 46. The gap D is formed so as to increase as it approaches the upper end of the rising portion 33.

[Medium space]
As shown in FIGS. 5 to 7, the middle space S <b> 1 is formed between the steering lever 28 and the instrument panel 30. The middle space S1 exists in front of the driver seated on the driver's seat 27 so as to span the right end of the instrument panel 30 and the left end of the power steering unit portion 42 in the left-right direction, and the front upper wall portion 47 in the vertical direction. It exists so that it may extend over the lower end of this, and the upper end of the front lower wall part 46. FIG. Between the driver's seat 27 and the windshield 13, there is nothing in the middle space S <b> 1 that obstructs the field of view, and the front and front and lower fields of view of the driver seated on the driver's seat 27 are secured.

  Therefore, when the driver is in the posture P1, the front can be visually recognized through the middle space S1. Then, when the driver is in the posture P2, the work status of the cutting unit 1 (for example, the transport status of the scraping auger 4 or the cut mark of the cutting device 3) can be viewed through the middle space S1. When the driver looks into the front lower part in a forward bending posture, the driver can put his / her leg on the rising portion 33 so that his / her leg can be stretched.

[Right space]
The right space S2 is formed below the steering lever 28 (power steering unit 42). The right space S <b> 2 exists on the right side in the cabin 8 under the feet of the driver seated on the driver seat 27. There is nothing in the right space S2 between the driver seat 27 and the windshield 13 that obstructs the field of view, and the right side (front lower right) field of view in front of the driver seated on the driver seat 27 is provided. It is secured. The driver seated on the driver's seat 27 can easily adjust the right weeding tool 2 by visually recognizing the right weeding tool 2 through the right space S2.

[Left space]
The left space S3 is formed below the instrument panel 30. The left space S <b> 3 exists on the left side in the cabin 8 under the feet of the driver seated on the driver seat 27. There is nothing in the left space S3 between the driver seat 27 and the windshield 13 that obstructs the field of view, and the left side (front left and lower) field of view of the driver seated on the driver seat 27 in the lower front is shown. It is secured. The driver seated on the driver's seat 27 can easily perform the alignment with the left weeding tool 2 by visually recognizing the left weeding tool 2 through the left space S3.

  The ranges of the middle space S1, the right space S2, and the left space S3 in FIGS. 5 and 6 are examples for explanation, and the ranges of the middle space S1, the right space S2, and the left space S3 are limited to this. Is not to be done.

[Wiper]
As shown in FIG. 8, the wiper 48 is attached to the front end portion of the motor shaft 50 a of the motor 50. The motor shaft 50a penetrates the front upper wall portion 47 in the front-rear direction so as to protrude forward from the windshield 13.

  The motor 50 is attached to the front upper frame 66 via the first stay 51 and the second stay 52 so that the position of the motor 50 can be adjusted in the vertical direction. The first stay 51 is fixed to the front upper frame 66. A motor 50 is fixed to the second stay 52. The second stay 52 is attached to the first stay 51 so that the position thereof can be adjusted in the vertical direction through a long hole 52a that is long in the vertical direction.

  The wiper 48 includes a wiper arm 53 connected to the motor shaft 50 a and a blade 54 that can swing relative to the wiper arm 53. Here, in the windshield 13 having a large curvature, there is a possibility that the swinging end portion of the blade 54 and the wiper arm 53 may interfere with each other. In the present embodiment, the protrusion length of the motor shaft 50a is increased to increase the blade 54. By increasing the distance between the oscillating end portion and the wiper 48, the oscillating end portion of the blade 54 and the wiper arm 53 are less likely to interfere with each other. That is, the protruding length of the motor shaft 50a is set to a sufficient length so that the followability of the wiper 48 can be secured even with the windshield 13 having a large curvature.

  As shown in FIG. 10, the stay 41 is configured by bending a pipe-shaped member. The stay 41 is disposed outside the instrument panel 30 and the side panel 31. The stay 41 is covered with the instrument panel 30 so that it cannot be seen from either the driver seated on the driver seat 27 or the right side of the aircraft. A first fixing plate 55 is fixed to an end portion of the stay 41 that is fixed to the instrument panel 30. Two bolts 56 (stud bolts) are fixed to the first fixing plate 55. The stay 41 is fixed to the instrument panel 30 by tightening the nut 57 to the bolt 56 from the inside of the instrument panel 30.

  A second fixing plate 58 is fixed to an end portion of the stay 41 that is fixed to the side panel 31. Two bolt holes are formed in the second fixing plate 58. A reinforcing plate 59 is fixed inside the front portion of the side panel 31. A nut 60 (welding nut) is fixed to the reinforcing plate 59 at a position corresponding to the bolt hole of the second fixing plate 58. The stay 41 is fixed to the side panel 31 by screwing the bolt 61 into the nut 60 from the outside of the side panel 31.

[Airtight structure of control lever]
As shown in FIG. 11, the transmission lever 34 is supported so as to be swingable in the front-rear direction along a lever hole 31 a formed in the upper portion of the side panel 31. A cover 62 that closes the lever hole 31a from above is attached to the transmission lever 34. The cover 62 is configured to close the lever hole 31a over the entire swinging range of the speed change lever 34. The cover 62 is guided and supported by a guide member 63 attached to the upper surface of the side panel 31.

  With such a configuration, since the cover 62 covers the lever hole 31a from above over the entire swing range of the transmission lever 34, the airtightness of the transmission lever 34 can be improved. That is, it becomes difficult for dust to enter the side panel 31 through the lever hole 31a.

[Roof part]
As shown in FIGS. 12 to 14, the roof portion 80 is supported by the upper frame 65. An air conditioner unit 70 that air-conditions the cabin 8 is installed in the rear portion of the roof portion 80. The roof portion 80 has an outer roof 81 and an inner roof 82.

  Between the outer roof 81 and the inner roof 82, an air duct 90 (air according to the present invention) that blows air conditioned by the air conditioner unit 70 (cool air for cooling, warm air for heating) into the cabin 8. Corresponding to the “air passage”). A rear portion of the left side portion of the outer roof 81 protrudes leftward. A suction port 88 for sucking outside air supplied to the air conditioner unit 70 is formed at the bottom of the outer roof 81 that protrudes to the left. A precleaner 110 for the engine 9 is supported at the rear end portion of the right side portion of the outer roof 81. A recessed portion 84 into which the precleaner 110 enters is formed at the rear end portion of the right side portion of the outer roof 81. A housing portion 82 a for housing the motor 50 is formed at the front end portion of the inner roof 82. A recessed portion 83 that is recessed upward is formed in a portion of the inner roof 82 above the driver seated on the driver seat 27.

[Upper frame]
The upper frame 65 includes a front upper frame 66, a left front upper frame 67 (corresponding to a “left frame” according to the present invention), and a right front upper frame 68 (corresponding to a “right frame” according to the present invention). ing. The front upper frame 66, the left front upper frame 67, and the right front upper frame 68 are configured separately, but may be configured integrally. The upper frame 65 is formed such that the left end of the front upper frame 66 and the front end of the left front upper frame 67 are connected, and the right end of the front upper frame 66 and the front end of the left front upper frame 67 are connected. The upper frame 65 does not have a frame continuous with the rear end of the left front upper frame 67 and the rear end of the right front upper frame 68. That is, the upper frame 65 is formed so that a space between the rear end portion of the left front upper frame 67 and the rear end portion of the right front upper frame 68 is opened.

  The front upper frame 66 extends in the left-right direction and supports the front portion of the roof portion 80. The front upper frame 66 is formed such that the left end portion and the right end portion thereof are curved rearward. The left front upper frame 67 extends in the front-rear direction and supports the left side portion of the roof portion 80. The left front upper frame 67 is formed such that a rear end thereof is bent to the right side, and is connected to a left side portion of the left stay 100. The right front upper frame 68 extends in the front-rear direction and supports the right side portion of the roof portion 80. The right front upper frame 68 is formed such that a rear end portion thereof is curved to the left side, and is connected to a right side portion of the right stay 102. The rear end portion of the right front upper frame 68 is curved larger (curved substantially at a right angle) than the rear end portion of the left front upper frame 67. The rear end portion of the right front upper frame 68 is placed and connected to the upper end portion of the rear vertical frame 25.

[Air conditioning unit]
The air conditioner unit 70 includes a heat exchanger 71 including an evaporator, a heater, and the like, and a fan 72 that blows air to the heat exchanger 71 in a state of being arranged in the left-right direction. The air conditioner unit 70 is disposed between the rear end portion of the left front upper frame 67 and the rear end portion of the right front upper frame 68 so as to be offset from the left front upper frame 67 and the right front upper frame 68 toward the left front upper frame 67 side. Yes. The air conditioner unit 70 is accommodated in the accommodating portion 85 in a state where it is placed and supported on the upper end portion of the rear wall portion 15. From the bottom of the air conditioner unit 70, two drain hoses 73 for discharging the waste water from the air conditioner unit 70 are distributed to the left side and the right side and extend downward (see FIG. 4).

[Container]
The accommodating portion 85 is formed at the rear end portion of the roof portion 80. The accommodating portion 85 protrudes rearward from the rear wall portion 15. A front end portion of the Glen tank 10 enters below the housing portion 85. The upper part of the accommodating part 85 is formed by the outer roof 81, and the lower part of the accommodating part 85 is formed by the lower cover 86.

  The lower cover 86 is attached to the outer roof 81 from below. More specifically, an upper bent portion 86 a that is bent upward is formed at the front end portion of the lower cover 86. The upper bent portion 86 a is connected to the upper end portion of the rear wall portion 15. Further, a rear bent portion 86 b that is bent backward is formed at the rear end portion of the lower cover 86. The rear bent portion 86 b is connected to the rear end portion of the outer roof 81. Specifically, a recessed portion 81 a that is recessed upward is formed at the rear end portion of the outer roof 81, and the rear bent portion 86 b enters the recessed portion 81 a and contacts the lower surface of the outer roof 81 from below. In the attached state, they are connected by bolts inserted from below. Thus, the lower cover 86 is attached to the outer roof 81 from below. A bulging portion 86 c that bulges downward is formed at the lower rear end of the lower cover 86. A drain hose 73 is piped to the bulging portion 86c.

[Mounting surface]
The upper end portion of the rear wall portion 15 includes a front bent portion 15a bent forward (corresponding to the “mounting portion” according to the present invention), an upper bent portion 15b bent upward and connected to the front bent portion 15a, Is formed. An upper surface of the front bent portion 15a is a mounting surface 15c on which the air conditioner unit 70 is mounted. A rear end portion of the inner roof 82 is connected to the front bent portion 15a. Specifically, the rear end portion of the inner roof 82 is connected to the lower surface of the front bent portion 15a from below with a bolt inserted from above. A distribution duct 91 is placed and supported on the upper end of the upper bent portion 15b.

  A left stay 100, a middle stay 101, and a right stay 102 are connected to the mounting surface 15c in a cantilever shape protruding rearward from the rear wall portion 15. The left stay 100 supports the left side of the air conditioner unit 70. On the left side of the fan 72, a pair of front and rear left mounting legs 72a connected to the left stay 100 is provided. The middle stay 101 supports the left and right intermediate portions of the air conditioner unit 70. A pair of front and rear middle mounting legs 71 a connected to the middle stay 101 are provided on the left side of the heat exchanger 71. The right stay 102 supports the right side portion of the air conditioner unit 70. On the right side of the heat exchanger 71, a pair of front and rear right mounting legs 71b connected to the right stay 102 is provided.

(Recessed part)
The recessed portion 83 is formed in a portion of the inner roof 82 in front of the air conditioner unit 70. In the recessed portion 83, a front wall portion 83A, a rear wall portion 83B, a left wall portion 83C, and a right wall portion 83D are formed. The recessed portion 83 is formed in a substantially left-right symmetric shape with respect to the left-right center C of the roof portion 80 in plan view. The recessed portion 83 extends from the left end of the driver seat 27 to the right from the right end of the driver seat 27.

  As shown in FIG. 3, the recessed portion 83 is formed so as to extend from the front portion of the indoor ceiling portion 82 </ b> A constituted by the inner roof 82 to the rear portion of the ceiling portion 82 </ b> A. The recessed portion 83 is formed so as to extend from the upper front portion to the upper rear portion of the floor portion 49. The recessed portion 83 extends from the rear of the back end position L2 of the backrest 27a of the driver seat 27 to the front of the front end of the seat surface 27b of the driver seat 27 and to the front of the front end position L1 of the steering lever 28. That is, the recessed portion 83 is formed so as to extend from above the front end position L1 of the steering lever 28 to above the rear end position L2 of the backrest 27a of the driver seat 27. The position of the front end of the recessed portion 83 is set in the vicinity of the connection boundary L3 between the side panel 31 and the instrument panel 30 (specifically, the position between the connection boundary L3 and the front end of the instrument panel 30). (See FIG. 6).

  As shown in FIGS. 12 to 14, the front wall portion 83 </ b> A is formed at the front portion of the recessed portion 83. The front wall portion 83A is formed to be substantially vertical (strictly, so as to be slightly inclined forward and downward). The front wall portion 83A is formed to bend to the rear side at the left and right central portions. That is, the left side portion and the right side portion of the front wall portion 83 </ b> A are directed toward the left and right center C of the roof portion 80. In addition, an electronic device arrangement space 87 is formed between the front wall portion 83 </ b> A and the outer roof 81.

  The rear wall portion 83 </ b> B is formed at the rear portion of the recessed portion 83. The rear wall 83B is formed so as to incline forward. In the rear wall 83B, an inside air introduction port 82b (corresponding to an “introduction port” according to the present invention) for introducing the inside air of the cabin 8 into the air conditioner unit 70 is formed. Between the rear wall 83B and the air conditioner unit 70, a shutter 103 for switching whether to introduce the inside air of the cabin 8 or the outside air of the cabin 8 into the air conditioner unit 70 ("switching" according to the present invention). Equivalent to "mechanism").

  The left wall portion 83 </ b> C is formed on the left side portion of the recessed portion 83. The left wall portion 83C is formed to incline to the left. The right wall portion 83D is formed on the right side of the recessed portion 83. The right wall portion 83D is formed so as to incline downward to the right.

[Electronic equipment installation space]
The electronic device placement space 87 is a space for placing electronic devices. The electronic device includes an electronic device main body and an electronic device operation unit for operating the electronic device. In this embodiment, a radio 104 (corresponding to “electronic device” according to the present invention), a radio operation unit 105 for operating the radio 104 (corresponding to “electronic device, electronic device operating unit” according to the present invention), and an air conditioner. An air conditioner operation unit 106 (corresponding to “electronic device, electronic device operation unit” according to the present invention) for operating the unit 70 is disposed in the electronic device disposition space 87. The radio 104 and the radio operation unit 105 are arranged in the left part of the electronic device arrangement space 87. The air conditioner operation unit 106 is arranged on the right side portion of the electronic device arrangement space 87. The radio operation unit 105 and the air conditioner operation unit 106 are exposed in the cabin 8. Further, as described above, since the left side portion and the right side portion of the front wall portion 83A face the left and right center C side of the roof portion 80, the driver can operate the radio operation unit 105 and the air conditioner operation unit from the driver seat 27. It is easy to operate 106.

  The air conditioner operation unit 106 includes an operation unit for adjusting the temperature, an operation unit for adjusting the air volume, an operation unit for switching between outside air introduction and inside air circulation (switching operation of the shutter 103), and the like. Yes. The air conditioner operation unit 106 can be provided on the side panel 31 or can be configured by a remote controller.

[Blower duct]
The air duct 90 is provided between the outer roof 81 and the inner roof 82 and extends to the front portion of the cabin 8. The air duct 90 has a distribution duct 91, a left air duct 92, and a right air duct 93.

  The distribution duct 91 distributes the air conditioned by the air conditioner unit 70 to the left air duct 92 side and the right air duct 93 side. The rear part of the distribution duct 91 is connected to the air conditioner unit 70 in communication.

  The left ventilation duct 92 blows the air conditioned by the air conditioner unit 70 to the left side in the cabin 8. The left air duct 92 is disposed on the left side with respect to the recessed portion 83. The rear end portion of the left air duct 92 is connected in communication with the left side portion of the distribution duct 91. The front end portion of the left air duct 92 is formed so as to be bent toward the left and right center C of the cabin 8 in plan view, and is disposed in the electronic device disposition space 87. The radio 104 is arranged above the front end of the left air duct 92 so that the front end (the bent portion) of the left air duct 92 and the radio 104 overlap in plan view. The left air duct 92 is provided with four left air outlets 92 a (corresponding to “air outlets” according to the present invention) through which air conditioned by the air conditioner unit 70 blows into the cabin 8. A grill 92b is attached to each left outlet 92a.

  The three front left outlets 92 a are formed in the front portion of the roof portion 80. The three front left outlets 92a are disposed in front of the front end of the seat surface 27b of the driver seat 27. The rearmost left outlet 92 a is formed in the rear portion of the roof portion 80. The leftmost air outlet 92a at the end is arranged in the vicinity of the backrest of the driver seat 27 in the front-rear direction. Thereby, the air conditioned by the air conditioner unit 70 can easily reach the back of the driver seated on the driver seat 27. Further, the two front left outlets 92a are disposed close to the left and right center C of the roof portion 80 while being close to each other. The two front left air outlets 92 a are formed in a portion of the inner roof 82 below the electronic device installation space 87. The two rear left outlets 92a are formed in a portion (left wall 83C) of the recessed portion 83 that faces the left air duct 92.

  Of the left air duct 92, a left restricting portion 92c having a diameter decreasing toward the downstream side in the air flow direction between the second left outlet 92a from the front and the third left outlet 92a from the front. (Corresponding to the “diaphragm” according to the present invention). The left throttle 92c is configured by a wall surface that is substantially perpendicular to the air flow direction (see FIG. 15). The left air duct 92 has a lower front portion than a rear portion with the left throttle portion 92c interposed therebetween.

  With such a configuration, the wind speed of the air flowing through the left ventilation duct 92 is increased at the left throttle portion 92c, so that the draft feeling is improved. In particular, since the left throttle portion 92c is configured with a wall surface that is substantially perpendicular to the air flow direction, the wind speed is rapidly increased as compared with the throttle portion being configured with a gentle surface. The draft feeling is further improved.

  The right ventilation duct 93 blows the air conditioned by the air conditioner unit 70 to the right side in the cabin 8. The right air duct 93 is disposed on the right side with respect to the recessed portion 83. The rear end portion of the right air duct 93 is connected in communication with the right side portion of the distribution duct 91. The front end portion of the right air duct 93 is formed to be bent toward the left and right center C side of the cabin 8 in plan view, and is disposed in the electronic device disposition space 87. The right air duct 93 is provided with four right air outlets 93 a (corresponding to “air outlets” according to the present invention) through which air conditioned by the air conditioner unit 70 blows into the cabin 8. A grill 93b is attached to each right outlet 93a.

  The three front right outlets 93 a are formed in the front portion of the roof portion 80. The three front right outlets 93a are arranged in front of the front end of the seat surface 27b of the driver seat 27. The rearmost right outlet 93 a is formed in the rear portion of the roof portion 80. The rearmost right outlet 93a is disposed in the vicinity of the backrest of the driver seat 27 in the front-rear direction. Thereby, the air conditioned by the air conditioner unit 70 can easily reach the back of the driver seated on the driver seat 27. Further, the two front right outlets 93a are arranged near the left and right center C of the roof portion 80 in a state of being close to each other. The two front right outlets 93 a are formed in a portion of the inner roof 82 below the electronic device installation space 87. The two rear right outlets 93a are formed in a portion (right wall 83D) of the recessed portion 83 facing the right air duct 93.

  A right throttle part 93c (diameter is reduced in diameter toward the downstream side in the air flow direction between the second right air outlet 93a from the front of the right air duct 93 and the third right air outlet 93a from the front. (Corresponding to the “diaphragm” according to the present invention). The right throttle portion 93c is configured by a wall surface that is substantially perpendicular to the air flow direction (see FIG. 15). The right air duct 93 has a lower height on the front side than on the rear side with the right throttle portion 93c interposed therebetween.

  With such a configuration, the wind speed of the air flowing through the right air blowing duct 93 is increased at the right throttle portion 93c, so that the draft feeling is improved. In particular, since the right throttle portion 93c is configured with a wall surface substantially perpendicular to the air flow direction, the throttle portion is configured with a gentle inclined surface whose diameter gradually decreases toward the downstream side in the air flow direction. Compared to the case, the draft speed is drastically increased, so that the draft feeling is further improved.

[Suction port]
The suction port 88 is formed on the left side of the outer roof 81 on the side where the air conditioner unit 70 is offset in the left-right direction. The suction port 88 is adjacent to the fan 72 in the air conditioner unit 70. That is, the suction port 88 is formed in the left side of the outer roof 81 on the fan 72 side with respect to the air conditioner unit 70 in the left-right direction. A suction port 88 is disposed on the left side with respect to the air conditioner unit 70, and a pre-cleaner 110 is disposed on the right side with respect to the air conditioner unit 70. In other words, the suction port 88 is disposed on the inner side of the roof 80 and the precleaner 110 is disposed on the outer side of the roof 80. That is, the suction port 88 is formed on the left side of the outer roof 81 that is opposite to the left and right of the pre-cleaner 110 with respect to the air conditioner unit 70. The suction port 88 is formed in a substantially rectangular shape that opens downward, and is disposed obliquely so that the longitudinal direction of the suction port 88 is located on the left side as it approaches the front end with respect to the front-rear direction.

  As shown in FIG. 16, a cover 107 is attached to the suction port 88 in a state of being spaced downward with respect to the suction port 88. The cover 107 is fixed to the suction port 88 by bolts 108 from below. A first step 107 a is formed on the right half of the cover 107. A second step 107 b is formed on the left half of the cover 107. The separation interval of the second step portion 107 b with respect to the suction port 88 is larger than the separation interval of the first step portion 107 a with respect to the suction port 88. Outside air is sucked in between the second step 107 b and the suction port 88 on the left side of the cover 107 and between the first step 107 a and the suction port 88 on the right side of the cover 107.

〔shutter〕
As shown in FIGS. 14 and 17, the shutter 103 can swing around a laterally oriented axis and can be switched between a position for introducing outside air and a position for circulating inside air. When the inside air introduction port 82b is closed by the shutter 103, outside air is introduced into the air conditioner unit 70 through the outside air introduction port 81b. When the outside air introduction port 81b is closed by the shutter 103, the inside air is introduced into the air conditioner unit 70 through the inside air introduction port 82b. A long hole 103 a (slit) that is long in the short direction of the shutter 103 is formed at the left end of the shutter 103.

  As shown in FIG. 17A, when the shutter 103 is switched to a position for closing the inside air introduction port 82b, the long hole 103a is not located within the range of the inside air introduction port 82b. In this case, outside air is introduced into the air conditioner unit 70 through the outside air introduction port 81b, but inside air is not introduced into the air conditioner unit 70 through the long hole 103a.

  On the other hand, as shown in FIG. 17B, when the shutter 103 is switched to the position for closing the outside air introduction port 81b, the long hole 103a is located within the range of the outside air introduction port 81b. In this case, the inside air is introduced into the air conditioner unit 70 through the inside air introduction port 82b, and some outside air is introduced into the air conditioner unit 70 through the long hole 103a. As a result, the internal pressure in the cabin 8 increases during circulation of the inside air, so that dust can be prevented from entering from the outside of the cabin 8. It should be noted that the size of the long hole 103a is set so that the merit of the inside air circulation is not lowered (the outside air is not introduced too much during the inside air circulation).

[Pre-cleaner]
As shown in FIGS. 12, 18, and 19, the precleaner 110 is disposed so as to enter the recessed portion 84. A precleaner support portion 89 that supports the precleaner 110 is formed in a portion corresponding to the recessed portion 84 of the outer roof 81. The precleaner 110 projects rightward from the right side portion of the outer roof 81. When viewed from the side, the upper end 110a (for example, a screw) of the precleaner 110 is positioned below the upper end (height position h) of the roof portion 80, and substantially all of the precleaner 110 is exposed. . In plan view, substantially all of the precleaner 110 is exposed (see FIG. 2). In the rear view, the precleaner 110 is completely exposed. The precleaner 110 is arranged on the right side with respect to the air conditioner unit 70. That is, the air conditioner unit 70 is arranged to be offset to the left side with respect to the roof portion 80, and the precleaner 110 is opposite to the side on which the air conditioner unit 70 is offset with respect to the roof portion 80. It is arranged on the right side which is the side.

(Recessed part)
The recessed portion 84 is formed so that the upper surface of the outer roof 81 is recessed downward. The recessed portion 84 opens on the right side and the rear side in plan view. The precleaner 110 protrudes rightward from the opening of the recessed portion 84. The recessed portion 84 is provided with a communication pipe 112 that allows communication between the precleaner 110 side and the air cleaner 111 side for the engine 9. The recessed portion 84 is formed with a vertical wall portion 84a extending in the vertical direction. The vertical wall portion 84 a is formed so as to extend to the left side and the front side of the recessed portion 84 in plan view, and has a substantially arc-shaped portion that follows the shape of the precleaner 110. The vertical wall portion 84 a extends from the lower end to the upper end of the recessed portion 84.

[Precleaner support]
The precleaner support 89 is formed integrally with the outer roof 81. The lower end 89 a of the precleaner support portion 89 is located at the lowest position in the outer roof 81. The lower end 89a of the pre-cleaner support part 89 is formed in a substantially horizontal linear shape in a side view and a back view. An alarm horn 113 is attached to the lower end 89 a of the precleaner support 89.

[Communication pipe]
The communication pipe 112 is configured separately from the outer roof 81, but may be configured integrally with the outer roof 81. The communication pipe 112 is constituted by, for example, a resin pipe. The communication pipe 112 is fixed to the precleaner support portion 89 so as to penetrate the precleaner support portion 89 in the vertical direction. The precleaner support 89 is formed with a through-hole 89b through which the communication pipe 112 passes. The through hole 89b is not included in the recessed portion 84. A precleaner 110 is connected to the upper end of the communication pipe 112. The upper end of the connection pipe 114 is connected to the lower end of the communication pipe 112. A lower end portion of the connection pipe 114 is connected to the air cleaner 111.

[Outside step]
As shown in FIG. 2, a ladder 115 for raising and lowering is provided in a portion of the front portion of the threshing device 7 that is closer to the left outer side of the machine body. The ladder 115 is fixed to the body frame 6. Further, an outer step 116 for raising and lowering is provided in a portion of the front portion of the threshing device 7 that is closer to the left outer side of the machine body. That is, the outer step 116 is arranged on the left outer side of the machine body with respect to the unloader receiver 12. Moreover, the outer side step 116 is comprised with the channel member, and is fixed in the state opened below in front view. The outer step 116 is fixed to the upper part of the front wall portion of the threshing device 7 (threshing top plate). Further, an inner step 117 for raising and lowering is provided at a portion of the front portion of the threshing device 7 closer to the right inner side of the machine body. The inner step 117 is composed of a channel member and is fixed in a state of opening downward in a front view. The inner step 117 is fixed to the unloader receiver 12.

  With such a configuration, the outer step 116 can be used to easily ascend onto the threshing device 7 from the left outer side of the unloader receiver 12. That is, when the inside step 117 is used to rise on the threshing device 7 from the right inner side of the unloader receiver 12, the space between the cabin 8 and the unloader 11 is difficult to pass through, but the left outer side of the unloader receiver 12. If so, the space is easy to pass because it is open to the left outer side of the aircraft.

[Compressor mounting structure]
As shown in FIG. 20, the compressor 118 for the air conditioner unit 70 is disposed in front of the inclined portion at the lower part of the Glen tank 10. That is, the compressor 118 is disposed above the Glen tank driving belt 119 that transmits the power of the engine 9 to the Glen tank 10 (conveyance system). Further, the power of the engine 9 is transmitted to the compressor 118 by the compressor driving belt 120. A compressor driving belt 120, a glen tank driving belt 119, and a fan driving belt 121 are linked to the output shaft 9a of the engine 9 in order from the outer right side of the machine body. The fan drive belt 121 transmits the power of the engine 9 to the cooling fan 122 for the engine 9.

  The compressor 118 is fixed to the rear surface of the compressor stay 123 with bolts 131. The compressor stay 123 is erected on the upper surface of the intermediate stay 124. The intermediate stay 124 is fixed to the upper part of the base stay 125. The upper portion of the base stay 125 is supported by the engine 9 (for example, a cylinder block) via a support rod 126. A lower portion of the base stay 125 is fixed to an engine base column 127 (a column 127 for the anti-vibration mount 132).

[Another embodiment]
(1) In the above embodiment, the airtight structure according to the present invention is applied to the shift lever 34. However, the airtight structure may be applied to the clutch lever 35, or only the shift lever 34 and the clutch lever 35 that can be switched to a predetermined switching position. Alternatively, it may be applied to a stepless operation lever.

  Further, the airtight structure according to the above embodiment may be as follows. For example, as shown in FIGS. 21 and 22, an upper and lower double packing 128 and a lower packing 129 that close the lever hole 31 a from above may be attached to the upper surface of the side panel 31. In the following description, the operation lever 130 is used as the transmission lever 34, the clutch lever 35, the stepless operation lever, and other operation levers.

  A lower slit 129 a is formed in the lower packing 129 along the movement locus of the operation lever 130. The upper packing 128 is formed with an upper slit 128 a along the movement locus of the operation lever 130. Round holes 128b are formed at both ends of the upper slit 128a. The round hole 128 b is formed at a position corresponding to the switching positions A and B of the operation lever 130.

  With such a configuration, when the operating lever 130 is switched to the switching position A, the operating lever 130 is fitted into the circular hole 128b on the switching position A side, and at the end of the lower slit 129a on the switching position A side. Will do. When the operating lever 130 is switched to the switching position B, the operating lever 130 is fitted into the round hole on the switching position B side and is positioned at the end of the lower slit 129a on the switching position B side.

  Here, when the operation lever 130 is positioned at the end of the lower slit 129a, the end of the lower slit 129a is deformed according to the shape of the operation lever 130. As a result, the operation lever 130 and the end of the lower slit 129a There will be a gap between the two. However, since the operating lever 130 is fitted in the round hole 128b of the upper packing 128, the gap at the end of the lower slit 129a is blocked by the upper packing 128, so that the air tightness of the operating lever 130 is maintained. .

  Three or more round holes 128b may be formed. Further, as shown in FIG. 23, even if a round hole 128b is formed at one end of the upper slit 128a and a round hole 129b is formed at the other end of the lower slit 129a. Good.

(2) Although the left air duct 92 and the right air duct 93 are provided in the above embodiment, the present invention is not limited to this. That is, only the left air duct 92 may be provided, or only the right air duct 93 may be provided.

(3) In the above embodiment, four left outlets 92a and four right outlets 93a are provided, but the present invention is not limited to this. That is, the left outlet 92a and the right outlet 93a may be three or less, five or more, respectively, or may not be the same number.

(4) In the above embodiment, the recessed portion 83 is formed so as to extend from the front portion of the ceiling portion 82A to the rear portion of the ceiling portion 82A, but the present invention is not limited to this. That is, the recessed portion 83 may be formed only at the front portion of the ceiling portion 82A, may be formed only at the rear portion of the ceiling portion 82A, or is formed only at the front and rear intermediate portions of the ceiling portion 82A. May be.

(5) In the said embodiment, although the recessed part 83 is formed so that it may extend from the front upper part in the floor part 49 to the rear upper part, this invention is not limited to this. That is, the recessed portion 83 may be formed only above the front portion of the floor portion 49, may be formed only above the rear portion of the floor portion 49, or only above the front and rear intermediate portions of the floor portion 49. It may be formed.

(6) In the above-described embodiment, the recessed portion 83 extends from the rear of the backrest 27a of the driver seat 27 to the front of the front end of the seat surface 27b of the driver seat 27, but the present invention is not limited to this. That is, the recessed portion 83 may extend forward from the back 27a of the driver seat 27, or may not extend forward from the front end of the seat surface 27b of the driver seat 27.

(7) In the above embodiment, the recessed portion 83 extends forward from the connection boundary L3, but may not extend forward from the connection boundary L3.

(8) In the above-described embodiment, the rear wall portion 83B of the recessed portion 83 is formed so as to incline forward, but may be formed to incline rearward or substantially vertically. May be.

(9) In the above embodiment, the left throttle portion 92c (right throttle portion 93c) is configured by a wall surface that is substantially perpendicular to the air flow direction, but gradually decreases in diameter toward the downstream side in the air flow direction. It may be composed of a gently sloping surface that becomes smaller.

  The present invention can be used for a self-removing combine in addition to a normal combine.

1 Cutting part 8 Cabin 10 Glen tank (grain storage part)
13 windshield 15 rear wall 15a front bent part (mounting part)
16 windows
25 Rear vertical frame 27 Driver's seat 27a Backrest 27b Seat 28 Steering lever (steering operation tool)
29 Instruments 30 Instrument panel 31 Side panel 34 Shift lever (operating tools)
35 Clutch lever operation tools)
36 Side operation panel (operating tools)
37 Unloader remote control (operating tools)
49 Floor 67 Left front upper frame (left frame)
68 Front right upper frame (right frame)
70 Air Conditioner Unit 80 Roof Part 81 Outer Roof 82 Inner Roof 82A Ceiling Part 82b Inside Air Inlet (Inlet)
83 recessed part 83A front wall part 83B rear wall part 85 accommodating part 87 electronic equipment installation space 90 air blow duct (air flow path)
92a Left outlet (air outlet)
92c Left aperture (diaphragm)
93a Right outlet (air outlet)
93c Right aperture (diaphragm)
100 left stay
102 Right stay 103 Shutter (switching mechanism)
104 Radio (electronic equipment)
105 Radio operation part (electronic equipment, electronic equipment operation part)
106 Air conditioner operation part (electronic equipment, electronic equipment operation part)
L3 connection boundary

Claims (25)

A cabin on which the driver is boarded;
A cutting part that is located in front of the cabin and cuts the planted cereals,
A driver seat on which a driver sits in the cabin;
A windshield provided on the front surface of the cabin and extending from the upper part of the cabin to below the seat surface of the driver seat;
An air conditioner unit for air conditioning the cabin,
The air conditioner unit is installed in a rear portion of the roof portion of the cabin,
A left frame that extends in the longitudinal direction of the aircraft and supports the left side of the roof portion and a right frame that extends in the longitudinal direction of the aircraft and supports the right side of the roof portion are provided on the upper portion of the cabin.
A housing portion that houses the air conditioner unit is formed in a portion extending between the left frame and the right frame in a rear portion of the roof portion in a state of protruding rearward from a rear wall portion of the cabin,
The air conditioner unit is accommodated in the accommodating portion in a state where the air conditioner unit is located at a height position overlapping with the vertical range of the left frame and the right frame ,
The mounting portion for mounting and supporting the air conditioner unit includes a left rear vertical frame that supports the left side portion of the rear wall portion and a right rear portion that supports the right side portion of the rear wall portion at the upper portion of the rear wall portion. And the mounting portion is formed by bending the upper portion of the rear wall portion in a side view,
The air conditioner unit is a left stay that is connected to the left end of the mounting unit in a cantilevered manner, and a right stay that is connected to the right end of the mounting unit in a cantilevered manner to project backward. , Is placed on and supported by the mounting portion described above,
The rear end portion of the left frame extends to the left end portion of the mounting portion and is connected to the left stay,
The rear end portion of the right frame extends to the right end portion of the mounting portion and is combined with the right stay .   The combine according to claim 1, wherein the air conditioner unit is disposed between the left frame and the right frame so as to overlap the left frame and the right frame in a side view. The roof portion has an inner roof and an outer roof,
The combine according to claim 1 or 2 , wherein a recessed portion that is recessed upward is formed in a portion of the inner roof in front of the air conditioner unit. The combine according to claim 3 , wherein the recessed portion extends forward from the front end of the seat surface of the driver seat. The combine according to claim 3 or 4 , wherein the recessed portion extends from the rear to the front rather than the backrest of the driver seat. A steering operation tool is provided in front of the driver seat,
The combine according to any one of claims 3 to 5 , wherein the recessed portion is formed to extend from above the steering operation tool to above the driver seat. The combine according to any one of claims 3 to 6 , wherein the recessed portion is formed so as to extend from a front upper portion to a rear upper portion in the floor portion of the cabin. The combine according to any one of claims 3 to 7 , wherein the recessed portion is formed so as to extend from a front portion of a ceiling portion of the room constituted by the inner roof to a rear portion of the ceiling portion. A rear wall is formed at the rear of the recessed portion,
The combine according to any one of claims 3 to 8 , wherein the rear wall portion of the recessed portion is formed so as to incline forward. The combine of Claim 9 in which the inlet for introducing the inside air of the said cabin with respect to the said air conditioner unit is formed in the rear wall part of the said recessed part. A switching mechanism is provided between the air conditioner unit and the rear wall of the recessed portion for switching between introducing the inside air of the cabin or the outside air of the cabin into the air conditioner unit. The combine according to claim 10 . A front wall portion is formed at the front portion of the recessed portion,
The combine according to any one of claims 3 to 11 , wherein an electronic device disposition space for disposing electronic devices is formed between the front wall portion and the outer roof. The combine of Claim 12 with which the electronic device operation part for operating the said electronic device is provided in the front wall part of the said recessed part. The combine according to claim 13 , wherein the electronic device operation unit includes an air conditioner operation unit for operating the air conditioner unit. The combine according to any one of claims 12 to 14 , wherein an air outlet for the air conditioner unit is formed in a portion of the inner roof below the electronic device installation space. A side panel on which operating tools are disposed is disposed on at least one of the left and right sides with respect to the driver seat,
The combine according to any one of claims 1 to 15 , wherein an instrument panel in which instruments are disposed is connected to the side panel. The roof portion has an inner roof and an outer roof,
A recessed portion that is recessed upward is formed in a portion of the inner roof in front of the air conditioner unit,
The combine according to claim 16 , wherein the recessed portion extends forward to the vicinity of a connection boundary between the side panel and the instrument panel. The roof portion has an inner roof and an outer roof,
A recessed portion that is recessed upward is formed in a portion of the inner roof in front of the air conditioner unit,
The out between the inner roof and the outer roof, said the portion of the at least left or right one side with respect to the recessed portion, wherein any one of claims 1 to air passage is provided in the air conditioner unit 17 Combine according to item. The combine of Claim 18 in which the blower outlet for the said air-conditioning unit is formed in the part which faces the said ventilation path among the said recessed parts. The combine according to any one of claims 1 to 19 , wherein an air outlet for the air conditioner unit is formed in a portion closer to the front and a portion closer to the rear of the roof portion. An air passage for the air conditioner unit is formed in the roof portion,
21. The combine according to claim 20 , wherein a throttle portion whose diameter decreases toward the downstream side in the air flow direction is formed between the air outlets in the air passage. The combine according to any one of claims 1 to 21 , wherein the air conditioner unit is disposed on an upper part of a rear wall portion of the cabin. Behind the cabin, a grain storage unit for storing the grain is provided,
The combine as described in any one of Claim 1 to 22 arrange | positioned so that the said grain storage part may enter under the part which protrudes back rather than the rear wall part of the said cabin among the said accommodating parts. The combine according to any one of claims 1 to 23 , wherein a window portion is provided in a rear wall portion of the cabin. The combine according to any one of claims 1 to 24, wherein the combine is applied to an ordinary combine.

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