KR20160036651A - Combine - Google Patents

Abstract

There is a need for a combine which will not allow rainwater to be introduced into the inside of a loop part from an external air introducing part. In addition to this, there is also a need for a combine from which an operational panel can be easily removed. According to the present invention, the combine comprises: an operating cabin with a loop part (14); an air conditioning unit (22) mounted in the loop part (14) that air-conditions the operating cabin; an opening part (19b) disposed in a loop rear wall part (19A) which composes the rear side wall surface of the circumference of the loop part (14), and is communicated with the air conditioning unit (22); and an external air introducing part (24) which is installed in the opening part (19b) and introduces external air to the air conditioning unit (22). The external air introducing part (24) is composed to take in external air from the upper part and lower part thereof, and is installed in the opening part (19b) to be slanted upward to the rear side. Additionally, a chassis frame (1031) is supported by an operating part frame in a state that the bottom part of the chassis frame (1031) and the top part of the operating part frame (1032) are vertically separated so that an insertion space (1035) may be formed between the bottom part of the chassis frame (1031) and the top part of the operating part frame (1032). An end part of a chassis (1030) side among side panels (1012) is supported by the operating part frame (1032) in a state of being inserted in the insertion space (1035), is configured to be placed over the bottom part of the chassis frame (1031) and the top part of the operating part frame (1032), and is equipped with a panel cover (1036) which envelops the insertion space (1035) from outside the machine body.

Description

Combine {COMBINE}

The present invention relates to a driving cabin having a loop portion, an air conditioner unit incorporated in the loop portion, for controlling air in the driving cabin, and an outside air introducing portion for introducing outside air into the air conditioner unit.

The present invention also relates to a combine having an operation section having a driver's seat, a cabin section covering an upper portion of the operation section, and an operation panel provided on a side or front of the driver's seat in the operation section, will be.

As a combine as described above, for example, a combine described in Patent Document 1 is already known. In the combine described in Patent Document 1, an air conditioner unit ("air conditioner" in the literature) for controlling the air in the operation cabin is built in a loop portion ("ceiling cover" in the literature). In the roof side wall portion (the " lateral side wall portion " in the literature) constituting the sidewall of the outer periphery of the loop portion, an outside air introducing portion for introducing external air to the air conditioner unit . As a result, the outside air from the outside air introducing portion flows into the inside of the loop portion and is introduced into the air conditioner unit.

As the combine as described above, for example, those described in Patent Document 2 are already known. The combine described in Patent Document 2 includes an operation section having a driver's seat and a cabin section (" cabin " in the literature) covering the upper portion of the operation section. In the operation section, on the left side of the driver's seat, there is provided an operation panel (a "side panel" in the literature) in which the operation opening is disposed. Further, a window portion is provided on the left side wall portion of the cabin portion so as to be adjacent to the operation panel. A support member for supporting the window and the operation panel is provided so as to extend in the front-rear direction along the lower end of the window.

Japanese Patent Application Laid-Open No. 2000-5541 Japanese Patent Application Laid-Open No. 2014-97037

In the combine described in Patent Document 1, since the outside air introducing portion is provided in a substantially vertical posture, the rainwater is likely to enter the outside air introducing portion, and the rainwater is likely to enter the inside of the loop portion from the outside air introducing portion.

In view of the above situation, there is a demand for a combine in which rainwater is hardly invaded from the outside air introduction portion into the inside of the loop portion.

Further, in the combine described in Patent Document 2, the window is supported by the support member in a state in which it is mounted on the operation panel. Therefore, for example, in order to detach the operation panel when performing maintenance or the like, it is necessary to remove the window portion in advance and it is not easy to remove the operation panel.

In view of the above situation, there is a demand for a combine capable of easily detaching the operation panel.

The present invention is characterized in that it comprises an operation cabin having a loop portion, an air conditioner unit incorporated in the loop portion and regulating the air in the operation cabin, and a roof side wall portion constituting a sidewall of the outer periphery of the roof portion, The air conditioner according to any one of claims 1 to 3, wherein the air conditioner comprises: an opening portion communicating with the air conditioner unit; and an outside air introducing portion provided in the opening portion and introducing outside air into the air conditioner unit, wherein the outside air introducing portion is configured to suck outside air from the upper and lower portions thereof, And is provided in the opening portion in an inclined posture.

According to this characteristic configuration, the outside air can be introduced efficiently from the upper and lower portions of the outside air introduction portion. Further, even when the rainwater enters from the upper portion of the outside air introduction portion, the rainwater entering the outside air introduction portion flows out to the outside of the outside air introduction portion and is discharged outside from the lower portion of the outside air introduction portion in that the outside air introduction portion is inclined posture upward easy. Therefore, it is difficult for the rainwater to enter the inside of the loop portion from the outside air introduction portion.

Further, in the present invention, it is preferable that a protruding portion protruding outwardly from the outside air introducing portion is formed at a portion of the roof side wall portion above the outside air introducing portion.

According to this characteristic configuration, the protruding portion performs the function of the shade so that the rainwater hardly enters the outside air introduction portion.

In the present invention, it is preferable that the portion of the roof sidewall portion where the opening is formed is formed in an inclined shape outwardly of the base.

According to this feature, since the opening itself provided with the outside air introducing portion is inclined posture upward in the outward direction of the base, the outside air introducing portion can be simply installed in an accurate inclined posture by only providing the outside air introducing portion in the opening.

Further, in the present invention, it is preferable that the outside-air introducing portion has a filter for air cleaning, and the filter is provided in an inclined posture upward of the base.

According to this characteristic configuration, it is easy to access the filter from below to perform maintenance (for example, replacement of the filter) of the filter.

In the present invention, it is preferable that the filter has the suction portion on the outer side and the discharge portion on the inner side facing each other, and the lower end portion of the discharge portion is set at a position above the lower end portion of the suction portion.

According to this characteristic configuration, even if the rainwater enters the filter, the rainwater hardly flows to the discharge side (inside), and is easily discharged from the suction portion (outside) to the outside of the outside air introduction portion.

In the present invention, it is preferable that the loop side wall portion is formed with a concave portion that enters the inside of the loop portion in a state inclined upward inwardly of the base body and the opening portion is formed in the bottom portion of the concave portion Do.

According to this characteristic configuration, since the outside air introducing portion is installed in the recessed portion, it is difficult for the rainwater to enter the outside air introducing portion.

Further, in the present invention, it is preferable that an upper intake port for sucking outside air is formed on the upper portion of the outside air introduction portion, and the outside air introduction portion is arranged so that the upper intake port is located in the recess.

According to this feature, since the upper suction port is located in the recess, it is difficult for the rainwater to enter the upper suction port. For example, it is difficult for the rainwater to enter the upper intake port even if the rainwater falls off from the upper portion of the concave portion in the roof side wall portion.

According to another aspect of the present invention, there is provided an air conditioner comprising: an operation section having a driver's seat; a cabin section that covers an upper portion of the operation section; and an operation panel provided on a side or front of the driver's seat, A chassis which is installed adjacent to the operation panel on a wall portion of the cabin on the side where the operation panel is located with respect to the driver's seat; a chassis frame which supports the chassis; And an operation unit frame extending from the lower end of the chassis frame to support the chassis frame and the operation panel, wherein an insertion space is provided between the lower end of the chassis frame and the upper end of the operation unit frame, In a state in which the lower end of the chassis frame and the upper end of the operation unit frame are vertically spaced apart from each other, And an end portion of the operation panel on the side of the chassis is supported by the operation portion frame in a state of being inserted into the insertion space and is supported by the lower end portion of the chassis frame and the upper end portion of the operation portion frame, And a panel cover which covers the insertion space from the outside of the base.

With this feature, in a state in which the lower end of the chassis frame and the upper end of the operation frame are vertically spaced so as to form an insertion space between the lower end of the chassis frame and the upper end of the operation frame, . The end portion of the operation panel on the side of the chassis is supported by the operation portion frame in a state of being inserted into the insertion space. Thus, the operation panel can be taken out of the insertion space without detaching the chassis frame, and the operation panel can be easily removed. In addition, since the insertion space is covered from the outside of the casing by the panel cover, there is no case where the vibration or the rainwater enters the insertion space.

In the present invention, it is preferable that a seal member is provided between the operation unit frame and the panel cover.

According to this feature, it is possible to prevent intrusion of dust or rainwater into the insertion space from between the operation unit frame and the panel cover by the seal member.

Further, in the present invention, it is preferable that the operating section frame includes a front and rear frame member extending in the front-rear direction, an installation frame member provided along the upper portion of the front and rear frame members and provided with the operation panel, Wherein a longitudinal direction portion extending in the vertical direction is provided at an end portion of the chassis side and the longitudinal portion is inserted into the outside of the base body of the installation frame member in the insertion space and between the longitudinal portion and the panel cover, It is suitable if a seal member is provided.

According to this feature, since the longitudinal portion is inserted into the outside of the base of the mounting frame member in the insertion space, the mounting frame member is covered by the end of the operation panel on the chassis side. This makes it difficult for the panel or rainwater to enter the inside of the operation panel from between the end of the operation panel and the mounting frame member. It is also possible to prevent intrusion of rain or rainwater from between the longitudinal portion and the panel cover into the insertion space by the seal member.

In the present invention, it is preferable that a transverse direction portion extending in the lateral direction along the lower surface of the chassis frame is provided on the upper portion of the panel cover, and the transverse direction portion is supported on the lower surface of the chassis frame.

According to this aspect of the invention, the lateral direction portion is supported on the lower surface of the chassis frame, so that the insertion space is covered by the panel cover in a state in which there is no gap between the panel cover and the lower surface of the chassis frame. Thereby, there is no case in which dust or rainwater enters between the panel cover and the lower surface of the chassis frame.

Further, in the present invention, it is preferable that a bracket extending downward is provided at the lower end of the chassis frame, and the panel cover is supported on the bracket.

According to this feature, the panel cover can be easily supported by using the bracket.

In the present invention, it is preferable that the upper end of the operation panel on the chassis side inside the cabin is set at a position above the lower end of the chassis frame.

According to this characteristic configuration, even if the dust or rainwater enters the insertion space, the dust or rainwater in the insertion space can hardly pass over the upper end of the chassis side of the operation panel inside the cabin, It is difficult to invade.

1 is a left side sectional view showing a self-removing combine.
Fig. 2 is a plan view showing the self-removing combine. Fig.
3 is a right side view showing the driving cabin.
4 is a rear view showing the driving cabin.
5 is a plan sectional view showing a loop portion.
6 is a sectional view taken along line VI-VI in Fig. 5;
7 is an enlarged cross-sectional view showing a rear portion of the loop portion in Fig.
8 is a plan view showing the inside of the loop portion;
9 is a front sectional view showing an electronic device arrangement space;
10 is a right side sectional view showing an outside air introduction portion;
11 is an exploded view showing an outside air introduction portion.
12 is a rear sectional view showing an outside air introduction path;
13 is a right side view showing a capacitor and a receiver.
14 is a front view showing a capacitor and a receiver.
15 is a right side view showing the self-removing combine.
16 is a plan view showing a self-removing type combine.
17 is a right side view showing the driving cabin.
18 is a plan sectional view showing the inside of the driving cabin.
19 is a left side view showing a driving cabin.
20 (a) is a front sectional view showing a door chassis and a door frame; (b) is a front sectional view showing the door.
21 (a) is an oblique sectional view showing a structure of a bulkhead of a dustproof cover and a door. (b) is a plan sectional view similarly.
22 is a left side view showing a state in which the side panel is inserted into the insertion space;
23 is a sectional view taken along line VIII-VIII in Fig. 22;
24 is a left side view showing an open structure of an engine room according to another embodiment;
Fig. 25 (a) is a front sectional view showing an open structure of an engine room according to another embodiment; Fig. (b) is a front sectional view showing the fixing structure of the dust cover by the knob bolt.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings.

[Overall configuration of self-debulking combine]

Figs. 1 and 2 show a demagnetizing combine as an example of a combine. This decoupling combine has a crawler type traveling device 1 and a base frame 2 supported by the traveling device 1. [ On the front end portion of the base frame 2, a preliminary mounting portion 3 is provided so as to be movable up and down. A driving cabin (4) is provided at the rear of the preload portion (3). An engine (5) is provided below the driving cabin (4). On the rear side of the driving cabin 4, there are provided a threshing device 6 for threshing the cut-out curved portion and a grain tank 7 for storing the curved grain in the left-right direction. The grain tank 7 is provided with an unloader 8 for discharging the grain in the grain tank 7.

[Driving cabin]

3 and 4, the operation cabin 4 has an operation section 10 having a driver's seat 9 and a cabin section 11 covering the upper portion of the operation section 10. An engine room 12 in which the engine 5 is accommodated is formed below the driver's seat 9 in the operation section 10. [ The right side portion of the engine room 12 is covered with a dust cover 13 having a dust-proofing net 13a. The dustproof cover (13) is configured to be swingable about an axis (Y1) extending in the front-rear direction.

On the upper portion of the cabin portion 11, a loop portion 14 is provided. The rear wall portion of the cabin portion 11 is constituted by the cabin rear wall portion 15. The cabin rear wall portion 15 is provided with a rear glass 16. The pre-cleaner 17 for the engine 5 is supported on the cabin rear wall portion 15 via a stay 18.

[Loop section]

As shown in Figs. 5 to 8, the loop portion 14 has an outer loop 19 and an inner loop 20. The loop portion 14 is supported by the loop frame 21. [ The roof portion 14 is provided with an air conditioner unit 22 for adjusting the air in the operation cabin 4, a blowing duct 23 for blowing air from the air conditioner unit 22 into the operation cabin 4, An outside air introducing portion 24 for introducing the outside air to the air conditioning unit 22 and an outside air introducing path 25 for introducing the outside air from the outside air introducing portion 24 to the air conditioning unit 22 are provided.

The rear end of the outer loop 19 is formed so as to protrude rearward from the cabin rear wall 15. The rear wall portion of the outer loop 19 is constituted by a loop back wall portion 19A (corresponding to the "loop side wall portion" in the present invention). The post-loop barrier portion 19A constitutes the rear side wall surface of the outer periphery of the loop portion 14. The post-loop barrier portion 19A is formed in a rearward upward direction (upwards outward of the base).

The inner loop 20 is formed with a concave portion 20A recessed upward from above the driver's seat 9. The concave portion 20A extends over the front portion and the rear portion of the inner loop 20 in the front-back direction and extends over the left end portion and the right end portion of the inner loop 20 in the left- have. At the front of the concave portion 20A, an electronic device arrangement space S in which electronic equipment is disposed is formed. The rear end portion of the inner loop 20 is connected to the upper flange portion 15a of the upper end portion of the cabin rear wall portion 15 from below.

The roof frame 21 has left and right frames 21A extending in the left and right direction and a pair of left and right front and rear frames 21B extending in the front and rear direction. The left and right frames 21A support the front end portion of the loop portion 14. The left and right pair of front and rear frames 21B support left and right ends of the loop portion 14.

[Air conditioning unit]

The air conditioner unit 22 is accommodated in the rear portion of the loop portion 14. [ The air conditioner unit 22 is mounted between the outer loop 19 and the inner loop 20 and is supported on the upper end of the cabin rear wall 15. The rear portion of the air conditioner unit 22 is covered from below by the lower cover 26. [

The air conditioner unit 22 has a heat exchanger unit 27 and a blower fan 28 for blowing air to the heat exchanger unit 27. The heat exchanger 27 and the blowing fan 28 are disposed on the right and left sides, respectively. The air conditioner unit 22 is arranged such that the heat exchanger part 27 is biased to the right with respect to the center C of the loop part 14 in the left and right direction. The air conditioner unit 22 is configured so that the outdoor air introduction and indoor air circulation can be switched by the indoor / outdoor switching mechanism 29.

The heat exchanger unit 27 has a heater core 27A for heating and an evaporator 27B for cooling. The heater core 27A and the evaporator 27B are respectively disposed in a state of being positioned on the front side and the rear side.

The lower cover 26 is formed to open frontward and upward. The front flange portion 26a of the front end portion of the lower cover 26 is connected to the upper end portion of the cabin rear wall portion 15 from the rear side through the connecting plate 30. The upper flange portion 26b of the upper end of the lower cover 26 is connected to the rear end of the outer loop 19 from below.

[Ventilation ducts]

The blowing duct 23 is supported by the inner loop 20 in a state of being embedded between the outer loop 19 and the inner loop 20. The blowing duct 23 has a center duct 31, a left side duct 32 and a right side duct 33. The left side duct 32 and the right side duct 33 are formed in a bilaterally symmetrical shape.

The center duct 31 is disposed in front of the air conditioner unit 22 at the rear of the concave portion 20A. The center duct 31 is formed to extend over the left and right sides of the concave portion 20A.

At the left end portion of the center duct 31, a left curved portion 31A curved forward is formed. At the right end of the center duct 31, a right curved portion 31B curved forward is formed. A duct front wall portion 31C is formed between the left curved portion 31A and the right curved portion 31B in the front end portion of the center duct 31. [ At the rear end of the center duct 31, a rear connecting portion 31D connected to the heat exchanger portion 27 is formed.

A left connecting portion 31E connected to the left side duct 32 is formed at a front end portion of the left curved portion 31A. The left curved portion 31A has a left inner arc portion 31a constituting an arc portion on the inner peripheral side and a left outer arc portion 31b constituting an arc portion on the outer peripheral side. The left inner arc portion 31a is formed into a substantially circular arc shape having a smaller diameter than the left outer arc portion 31b.

A right connecting portion 31F connected to the right side duct 33 is formed at a front end portion of the right curved portion 31B. The right curved portion 31B has a right inner arc portion 31c constituting an arc portion on the inner peripheral side and a right outer arc portion 31d constituting an arc portion on the outer peripheral side. The right inner arc portion 31c is formed in a substantially circular arc shape smaller in diameter than the right outer circular arc portion 31d.

In the present embodiment, the left side duct 32 and the right side rib 32 are formed symmetrically with the left side curved portion 31A and the right side side curved portion 31B and by reducing the diameters of the left side arc part 31a and the right side arc part 31c, And the air volume on the side of the right side duct (33) is equalized.

The duct front wall portion 31C is formed so as to extend substantially linearly in the left-right direction between the left curved portion 31A and the right curved portion 31B. The duct front wall portion 31C has a front vertical portion 31e and a front curved portion 31f. The front vertical portion 31e is formed to extend substantially vertically downward from the ceiling portion of the center duct 31. [ The front curved portion 31f is formed to extend from the lower end of the front vertical portion 31e to the bottom portion of the center duct 31 in a curved shape backward.

The left side duct 32 is disposed on the left side of the concave portion 20A. The left side duct 32 is formed to extend from the left connecting portion 31E of the center duct 31 to the front of the recess 20A. At the front end of the left side duct 32, a left curved portion 32A curved to the right is formed. A plurality of (for example, four) left air outlets 34 for the air conditioner unit 22 are formed in the left side duct 32. Two front left air outlets 34 of the four left air outlets 34 are provided in the left side curved portion 32A of the left side duct 32. [

The right side duct 33 is disposed on the right side of the concave portion 20A. The right side duct 33 is formed to extend from the right side connecting portion 31F of the center duct 31 to the front side of the concave portion 20A. At the front end portion of the right side duct 33, a right curved portion 33A curved to the left is formed. A plurality of (for example, four) right air outlets 35 for the air conditioner unit 22 are formed in the right side duct 33. Two front right air outlets 35 of the four right air outlets 35 are formed in the right side curved portion 33A of the right side duct 33. [

The air from the air conditioner unit 22 is divided into left and right sides by colliding with the duct front wall portion 31C of the center duct 31 and the left side duct 32 and the right side duct 33, Respectively. Here, when the cold air from the air conditioner unit 22 collides against the duct front wall portion 31C and the cold air reaches the heater core 27A, the temperature of the cold air easily rises.

In this respect, in the present embodiment, the position of the duct front wall portion 31C is set as forward as possible, and the duct front wall portion 31C is composed of the front vertical portion 31e and the front curved portion 31f . As a result, as compared with the case where the front wall portion of the duct is set at a position behind the position of the duct front wall portion 31C and the case where the duct front wall portion is formed in a forward upward inclination, the duct front wall portion 31C, it is difficult to reach the heater core 27A and the temperature of the cold air caused by the heater core 27A hardly increases.

[Internal / External Switching Mechanism]

The inside / outside switching mechanism 29 has a shutter 29A swingable about the axis X1 in the left and right direction and a motor 29B for swinging the shutter 29A. The shutter 29A is configured to be switchable between a position for closing the air inlet port 20a of the inner loop 20 and a position for closing the outer air inlet 19a of the outer loop 19.

Here, a concave portion 19B is formed above the motor 29B in the outer loop 19. In order to set the position of the duct front wall portion 31C as far as possible, the motor 29B is placed in the recess 19B.

[Space for arranging electronic devices]

8 and 9, a radio 36, an air conditioner control unit 37, a wiper switch 38, a work light switch 39, and a harness 40 are arranged in an electronic device arrangement space S And a support stay 41 for supporting the harness 40 is provided. The air conditioner control unit 37 may include, for example, an operation unit for temperature control, an operation unit for controlling the air amount, and an operation unit for switching between outdoor air introduction and indoor air circulation. The harness 40 is provided with a harness for the radio 36 or a harness for the air conditioner 37, a harness for the wiper switch 38, a harness for the operation light switch 39, A cable for the antenna 43, and a cable for the monitor 44. [0050]

[Support stay]

The support stay 41 is provided so as to extend over the left side duct 32 and the right side duct 33. The left end of the support stay 41 is fixed to the installation leg 32a of the left side duct 32 through the left connection stay 45. [ The right end of the support stay 41 is fixed to the installation leg 33a of the right side duct 33 through the right connection stay 46. [ The support stay 41 is provided with a concave portion 41a recessed upward so that the radio 36 enters from below. The support stay 41 is supported by the left side duct 32 and the right side duct 33 through the left vibration rubber 47 and the right vibration rubber 48. [

The left side vibration proof rubber 47 is in contact with the upper surface of the left curved portion 32A of the left side duct 32 below the radio 36. [ The left anti-vibration rubber 47 is provided on the lower surface of the left attachment stay 49. The left attachment stay 49 is provided so as to extend leftward from the left attachment portion 41b of the support stay 41. [

The right anti-vibration rubber 48 is in contact with the upper surface of the right curved portion 33A of the right side duct 33. The right anti-vibration rubber 48 is provided on the lower surface of the right mounting portion 41c of the support stay 41.

The support stay 41 is supported by the left side duct 32 and the right side duct 33 through the left vibration rubber 47 and the right vibration rubber 48 so that the support stay 41 Noise is less likely to be generated between the support stay 41 and the left side duct 32 and the right side duct 33. [ Since the left side duct 32 and the right side duct 33 are pressed by the support stay 41, the airtightness of the blowing duct 23 is improved, and a decrease in wind speed can be prevented.

[Outer air introduction part]

As shown in Figs. 10 and 11, a concave portion 19C is formed in the loop rear wall portion 19A so as to enter the inside of the loop portion 14. The direction in which the concave portion 19C enters is set in a state of inclining toward the front side upward (upward inward of the gas). The bottom of the concave portion 19C is composed of a concave bottom portion 19c (corresponding to the " bottom portion " in the present invention). The concave bottom portion 19c is formed in an inclined posterior upward direction substantially parallel to the posterior loop wall portion 19A. An opening 19b communicating with the air conditioner unit 22 is formed in the concave bottom portion 19c.

The outside air introduction portion 24 is provided in the opening portion 19b in a rearwardly inclined posture. The outside air introduction portion 24 has an air cleaning filter 50, a filter case 51 on which the filter 50 is installed and an outer cover 52 covering the filter 50 from the outside.

The filter 50 is installed in an inclined posture upward in the rear direction. The filter 50 has the suction portion 50a on the outer side and the discharge portion 50b on the inner side so as to face each other. The lower end portion P1 of the discharge portion 50b is set at a position higher than the lower end portion P2 of the suction portion 50a.

The filter case 51 is provided from the outside with respect to the opening portion 19b in an inclined posture upward in the rearward direction. A flange portion 51a is formed over the entire outer periphery of the filter case 51. [ In the flange portion 51a, a seal 53 is provided over the entire circumference. The seal 53 seals between the outer cover 52 and the concave bottom portion 19c, that is, between the inner periphery of the opening 19b and the outer periphery of the filter case 51. [

An upper suction port 52a and a lower suction port 52b for sucking outside air are respectively formed at upper and lower ends of the outer cover 52, respectively. Both left and right ends of the outer cover 52 are provided on the concave bottom portion 19c by bolts 54. [ An upper flange portion 52c is formed at the upper end of the outer cover 52 so as to cover the upper portion of the outer periphery of the seal 53. [ A lower flange portion 52d is formed at the lower end portion of the outer cover 52 so as to cover the lower portion of the outer periphery of the seal 53. [ The rear wall portion of the outer cover 52 is constituted by a cover rear wall portion 52A.

The cover rear barrier portion 52A is formed in an inclined posterior upward direction. The inclination angle [theta] 1 of the cover posterior portion 52A is set larger than the inclination angle [theta] 2 of the posterior loop wall portion 19A. The upper corner portion P3 of the cover posterior portion 52A is set at a position retreated toward the concave portion 19C side with respect to the loop rear wall portion 19A.

The upper suction port 52a is formed to open rearward and upward in the concave portion 19C. That is, the outside air inlet portion 24 is disposed in a state where the upper air inlet port 52a is located in the concave portion 19C. Further, the lower suction port 52b is formed so as to open forwardly downward in a state of protruding outward from the inside of the concave portion 19C. From the side view, the opening width of the lower suction port 52b is set larger than the opening width of the upper suction port 52a.

A protruding portion 19d protruding rearward from the outside air introducing portion 24 is formed integrally with the loop rear wall portion 19A at a portion above the outside air introducing portion 24 in the after-loop wall portion 19A. The protruding portions 19d are formed so as to extend over the left and right sides of the outside air introducing portion 24.

The upper corner portion P3 of the cover rear wall portion 52A can be separated from the loop P4 of the roof portion 52A even when the rainwater flowing on the protruding portion 19d is separated from the connecting portion P4 between the protruding portion 19d and the concave portion 19C, The dripped rainwater is less likely to enter the upper suction port 52a because it is set at a position retreating toward the concave portion 19C side than the rear wall portion 19A. Also, even when rainwater enters from the upper intake port 52a, rainwater entering the ambient air intake 24 flows to the outside of the ambient air intake 24 because the ambient air intake 24 is inclined posteriorly upward, And is easily discharged to the outside from the lower suction port 52b.

[Outer air introduction path portion]

As shown in Fig. 12, the outside air introduction path 25 is formed so that the outer loop 19 is recessed downward from above the air conditioner unit 22. As shown in Fig. The gap d in the portion adjacent to the outside-air introducing path 25 is set so as to be as small as possible.

Here, as shown in Fig. 5, the width B1 of the end of the outside-air introducing path 25 on the outside-air inlet 19a side is set to be substantially equal to the width of the outside-air inlet 19a in the left-right direction. The width B2 of the end portion of the outside air introduction path 25 on the side of the outside air introduction portion 24 is set to be substantially equal to the width of the outside air introduction portion 24 in the left and right direction. That is, the width B1 of the end of the outside-air introducing path 25 on the outside-air inlet 19a side is set so that the width of the outside-air introducing path 25 extends from the outside-air introducing portion 24 side toward the outside- Is set wider than the width B2 of the end portion of the introduction path 25 on the side of the outside air introduction portion 24.

The gap d of the portion adjacent to the outside air introducing path 25 is set to be as small as possible and the width of the outside air introducing path 25 is set from the outside air introducing portion 24 side to the outside air inlet 19a side Air pressure in the outside air introduction path 25 is increased and the outside air from the outside air introduction part 24 is intensively transferred to the outside air inflow opening 19a by the outside air introduction path 25, can do.

[Air conditioning system]

3 and 4, an air conditioning system including a compressor 55, a condenser 56, and a receiver 57 is configured in addition to the air conditioner unit 22. The condenser 56 and the receiver 57 are connected to the receiver 57 and the air conditioner unit 22 by the second piping 59 by the first piping 58 and the compressor 55 and the condenser 56, The air conditioner unit 22 and the compressor 55 are connected to each other by the fourth pipe 61 by the third pipe 60. The third piping 60 and the fourth piping 61 are piped so as to extend downward from the air conditioning unit 22 through the left and right sides of the rear glass 16 in the cabin rear wall 15. [ As a result, the piping route of the air conditioner unit 22 is shortened, so that the amount of gas charge in the air conditioner system can be reduced.

As shown in Figs. 13 and 14, the condenser 56 is disposed on the right side of the operation section 10. Fig. The condenser 56 can be exposed to the outside by swinging the dust cover 13 downward around the axis Y1. An inlet 56a to which the first pipe 58 is connected is provided at the upper end of the rear portion of the condenser 56. [ An outlet 56b to which the second pipe 59 is connected is provided at the lower end of the rear portion of the condenser 56. [ The condenser 56 is supported on the operation frame 10A through the front support stay 62 and the rear support stay 63. [

The front support stays 62 are provided on the front portion of the condenser 56 through a pair of upper and lower front attachment stays 64. The lower end portion of the front support stay 62 is supported on the base frame 2 via the front swing pin 66 so as to be swingable about the axis Y2 extending in the front-rear direction. The upper end portion of the front support stay 62 is detachably fixed to the operation frame 10A by the front wing bolt 68. [

The rear support stays 63 are provided on the rear portion of the condenser 56 through a pair of upper and lower rear mounting stays 65. The lower end of the rear support stay 63 is swingably supported on the base frame 2 via the rear swing pin 67 so as to be swingable about the axis Y2 extending in the front-rear direction. The upper end portion of the rear support stay 63 is detachably fixed to the operation frame 10A by a rear wing bolt 69. [ The rear support stay 63 is provided with a receiver 57 through a mounting band 70. [

With such a configuration, when the front butterfly bolt 68 and the rear butterfly bolt 69 are removed, the condenser 56 can be oscillated around the axis Y2. Here, the swinging motion of the condenser 56 is permitted by the corrugated box portion 60a of the end of the third pipe 60 on the receiver 57 side. By thus opening the condenser 56, the condenser 56 can be easily cleaned.

[Other Embodiments]

(1) In the above embodiment, the opening 19b is formed in the loop rear wall portion 19A, but the front wall portion, the left wall portion, and the right wall portion of the loop portion 14 .

(2) In the above embodiment, the loop rear wall portion 19A is formed in a rearward upward (outwardly tilted) outward direction, but the outside air introduction portion 24 is formed in the opening 19b If possible, the post-loop barrier portion 19A may be formed in a forward upward direction (upward inward direction of the gas), or substantially perpendicularly.

(3) In the above embodiment, the air conditioner unit 22 is accommodated in the rear portion of the loop portion 14, but may be accommodated in the front portion of the loop portion 14.

(4) In the above embodiment, the protruding portion 19d is formed integrally with the loop back wall portion 19A, but may be formed separately from the loop back wall portion 19A.

(5) In the embodiment described above, the outside air inlet portion 24 is disposed in a state where the upper air inlet port 52a is located in the concave portion 19b, but the upper air inlet port 52a is located outside the concave portion 19b Or may be disposed in a protruded state. That is, the upper corner portion P3 of the cover posterior wall portion 52A is set at a position retracted toward the concave portion 19C side with respect to the loop rear wall portion 19A, but the upper corner portion P3 protruded outward from the inside of the concave portion 19C Position.

Other specific details for carrying out the present invention will be described with reference to the drawings.

[Overall configuration of self-debulking combine]

Figs. 15 and 16 show a demagnetizing combine as an example of a combine. This decoupling combine comprises a crawler type traveling device 1001 and a base frame 1002 supported by the traveling device 1001. On the front end portion of the base frame 1002, a preloading portion 1003 is provided so as to be movable up and down. A driving cabin 1004 is provided at the rear of the preload portion 1003. An engine 1005 is installed at a lower portion of the driving cabin 1004. In the rear of the driving cabin 1004, there are provided a tilting apparatus 1006 for tilting the cut tiles and a grain tank 1007 for storing the curved tiles in the left-right direction. In the grain tank 1007, an unloader 1008 for discharging the grain in the grain tank 1007 is provided.

[Driving cabin]

17 to 19, the driving cabin 1004 has a driving section 1010 having a driving seat 1009 and a cabin section 1011 covering the upper portion of the driving section 1010. [ The operation cabin 1004 may have the operation unit 1010 and the cabin unit 1011 integrally or separately.

Side panels 1012 (corresponding to the " operation panel " in the present invention) and a front panel 1013 are provided on the left side and the front side of the driver's seat 1009 in the operation section 1010, respectively. On the operation panel surface 1012A of the side panel 1012, for example, the peripheral speed lever 1014 (corresponding to the "operating port" of the present invention) and other operating ports are disposed. On the operation panel surface 1013A of the front panel 1013, for example, a steering lever 1015 and other operating units and an instrument display unit 1016 are disposed. In the instrument display section 1016, for example, a work speedometer, an engine speedometer, and a fuel system are arranged.

An engine bonnet 1017 covering the engine 1005 is provided at the rear portion of the operation portion 1010. [ On the upper surface of the engine bonnet 1017, a driver's seat 1009 is provided. Inside the engine bonnet 1017, an engine room 1017A is formed. In the engine room 1017A, an engine 1005, a radiator, a cooling fan 1019, and an air cleaner 1020 are accommodated. A right side portion of the engine room 1017A is covered with a dust cover 1021 having a vibration-damping network 1021a. The vibration isolation cover 1021 is configured to be swingable about the axis Y1001 extending in the front-rear direction. As the cooling fan 1019 rotates, air outside the engine compartment 1017A is introduced into the engine compartment 1017A through the vibration damping net 1021a.

At the upper portion of the cabin 1011, a loop portion 1022 is provided. A front glass 1023, a rear glass 1024, a left window portion 1025 and a door 1026 are provided on the front wall portion, the rear wall portion, the left wall portion and the right wall portion of the cabin portion 1011, respectively. The left front side glass 1027 and the right front side glass 1028 are provided so as to extend to the left end and the right end of the front glass 1023, respectively.

〔door〕

The door 1026 is configured to be openable and closable at a rear support point. The door 1026 has a door glass 1039, a door chassis 1040 on which the door glass 1039 is installed and a door frame 1041 for supporting the door chassis 1040.

The door glass 1039 is composed of curved curved glass that bulges outwardly of the operation cabin 1004 in the vertical direction (see Fig. 20). The door glass 1039 has an upper opening / closing glass 1039A and a lower fixing glass 1039B. The opening / closing glass 1039A is provided so as to be vertically movable above the door chassis 1040. The fixing glass 1039B is installed below the door chassis 1040 so as not to move up and down.

The door frame 1041 includes a front vertical door frame member 1041A on the front side, a rear vertical door frame member 1041B on the rear side, an upper side upper horizontal door frame member 1041C, Member 1041D. The rear vertical door frame member 1041B is swingably mounted on the rear pillar 1042 through a pair of upper and lower hinges 1026a.

As shown in Fig. 20, the door glass 1040 is provided with the door glass 1039 composed of the curved glass as described above. Therefore, the curved shape of the door cabin 1040, which swells to the outdoor side of the driving cabin 1004 in the vertical direction And a curved chassis. The door chassis 1040 is fitted inside the door frame 1041.

The outdoor side surface of the operation cabin 1004 in the front vertical door frame member 1041A and the rear vertical door frame member 1041B is formed so as to correspond to the curved shape of the door chassis 1040 in the vertical direction And is formed in a curved shape that expands to the outdoor side of the driving cabin 1004. On the other hand, the interior side surface of the operation cabin 1004 of the door frame 1041 is formed flat. A packing 1049 for sealing is provided on the inner side surface of the operation cabin 1004 of the door frame 1041.

According to this construction, since the door chassis 1040 constituted by the curved surface chassis is fitted inside the door frame 1041 as described above, the restoring force due to the curvature of the door chassis 1040 is transmitted to the door frame 1041, Lt; / RTI > As a result, the integrity of the door chassis 1040 and the door frame 1041 is improved, and the rigidity of the door 1026 as a whole is improved. The inner side surface of the operation cabin 1004 of the door frame 1041 is pressed toward the operation cabin 1004 uniformly over the entire surface through the packing 1049 so that the operation cabin 1004 of the door frame 1041 1004 are formed flat and the sealing performance of the door 1026 is improved. When the right side surfaces of the grain tank 1007 and the dust cover 1021 are curved, the shapes of the grain tank 1007 and the dust cover 1021 match the shape of the door 1026, .

[Sealing structure of door and dustproof cover]

As shown in Fig. 21, a partition wall 1043 made of sheet metal is provided at the right end portion of the engine bonnet 1017. The space between the room of the operation cabin 1004 and the upper portion of the dust cover 1021 and the door 1026 is blocked by the partition wall 1043. That is, the space between the cabin 1004, the dust cover 1021, and the door 1026 is blocked by one partition wall 1043. A sealing trim 1044 is provided between the partition 1043 and the door frame 1041 and a seal 1045 for sealing is provided between the partition 1043 and the dust cover 1021 Is installed. As compared with the case in which the partition for the dustproof cover 1021 and the partition for the door 1026 are separately provided by making the partition wall 1043 common to the dustproof cover 1021 and the door 1026, 1004 can be widened and the cost of parts can be reduced.

[Left window]

18 and 19, the left window portion 1025 includes a side glass 1029 of a front and rear sliding type, a chassis 1030 provided with a side glass 1029, a chassis 1030 supporting the chassis 1030, And a frame 1031. The chassis 1030 is provided on the left side of the side panel 1012. The chassis frame 1031 includes a front chassis frame member 1031A extending along the front surface of the chassis 1030, a rear chassis frame member 1031B extending along the rear surface of the chassis 1030, And a lower chassis frame member 1031C extending along the lower surface of the lower chassis frame member 1031C. Under the chassis frame 1031, a chassis frame 1031 and a driving sub frame 1032 for supporting the side panel 1012 are provided.

As shown in Figs. 22 and 23, the operation section frame 1032 is provided so as to extend in the front-rear direction along the lower end of the lower chassis frame member 1031C. The operation unit frame 1032 has front and rear frame members 1032A and an installation frame member 1032B. The operation unit frame 1032 is supported on the base frame 1002 through various frames. The front and rear frame members 1032A are formed of angular pipes extending in the front-rear direction. The mounting frame member 1032B is provided along the upper surface of the front and rear frame member 1032A. The mounting frame member 1032B is formed of an L-shaped sheet metal having a longitudinal portion 1032a extending in the vertical direction and a lateral portion 1032b extending in the lateral direction.

Here, the front support portion 1033 and the rear support portion 1034 are provided at the front end portion and the rear end portion of the lower chassis frame member 1031C. The chassis frame 1031 is supported on the front and rear frame members 1032A through the front support portion 1033 and the rear support portion 1034. [ That is, the chassis frame 1031 is supported by the front and rear frame members 1032A in a state in which the lower end of the lower chassis frame member 1031C and the upper end of the front and rear frame members 1032A are vertically spaced apart. Thereby, an insertion space 1035 is formed between the lower end of the lower chassis frame member 1031C and the upper end of the front and rear frame member 1032A.

[Insertion space]

The insertion space 1035 is formed in a substantially rectangular shape that is long in the front-rear direction when viewed from the side. The insertion space 1035 is formed to extend over the front support portion 1033 and the rear support portion 1034. That is, the insertion space 1035 is formed so as to extend over the front end portion and the rear end portion of the lower chassis frame member 1031C. Further, the insertion space 1035 is covered from the left side by the panel cover 1036.

[Panel cover]

The panel cover 1036 is formed of a long plate-like member in the front-rear direction. The panel cover 1036 extends over the front support portion 1033 and the rear support portion 1034 in the forward and backward directions and extends over the lower end of the lower chassis frame member 1031C and the upper end of the front and rear frame members 1032A in the vertical direction Consists of. At the upper end of the panel cover 1036, a lateral portion 1036a extending in the left-right direction along the lower surface of the lower chassis frame member 1031C is formed. The lateral portion 1036a is in contact with the lower surface of the lower chassis frame member 1031C.

Here, a bracket 1037 extending downward is provided at the front and rear central portions of the lower chassis frame member 1031C. The panel cover 1036 is detachably attached to the bracket 1037, the front support portion 1033 and the rear support portion 1034 by a bolt 1051 from the left side (outside the base). Specifically, the panel cover 1036 is in a state of being in contact with the bracket 1037 from the right side (the inboard side), and is in contact with the front side support portion 1033 and the rear side support portion 1034 from the left side , And is detachably provided by a bolt 1051 from the left side (outside the base).

[Side panel]

23, a first longitudinal portion 1012B extending in the vertical direction, a lateral portion 1012C extending in the lateral direction, and a second vertical portion 1012C extending in the vertical direction are provided at the left end of the side panel 1012, And a second longitudinal direction portion 1012D (corresponding to " longitudinal direction " in the present invention) is formed.

The first longitudinal portion 1012B is formed to extend downward from the left end of the operation panel surface 1012A. The connecting portion between the upper end of the first longitudinal portion 1012B and the left end of the operation panel surface 1012A, that is, the upper end portion P1000 of the side panel 1012 on the side of the chassis 1030 on the indoor side of the operation cabin 1004 Is set at a position above the lower end of the lower chassis frame member 1031C and below the upper end of the lower chassis frame member 1031C.

The transverse portion 1012C is formed so as to extend from the lower end of the first longitudinal portion 1012B to the left along the upper surface of the transverse portion 1032b of the installation frame member 1032B. The second longitudinal portion 1012D is formed to extend downward along the left side surface of the longitudinal portion 1032a of the mounting frame member 1032B from the left end portion of the lateral portion 1012C. The second longitudinal portion 1012D is inserted into the insertion space 1035 to the left (outside the base) of the longitudinal portion 1032a of the installation frame member 1032B. That is, the second longitudinal portion 1012D is inserted between the longitudinal portion 1032a and the panel cover 1036 of the installation frame member 1032B in the insertion space 1035. [ A seal member 1038 is provided between the second longitudinal portion 1012D and the panel cover 1036. [

The seal member 1038 may be provided on the right side surface of the panel cover 1036 or on the left side surface of the second longitudinal portion 1012D of the side panel 1012. [ The seal member 1038 is made of, for example, a sponge or rubber. It is suitable if the seal member 1038 is formed to have a length corresponding to the longitudinal length of the insertion space 1035.

[Attachment and Detachment of Side Panel]

The lateral portion 1012C of the side panel 1012 can be detachably attached to the lateral portion 1032b of the mounting frame member 1032B. The side panels 1012 can be installed using fixtures such as rivets or bolts. Mounting and detachment of the fixture can be performed from the left side of the insertion space 1035 (outside the gas), that is, from the outside of the driving cabin 1004, with the panel cover 1036 removed. The installation position of the side panel 1012 is provided at three places, for example, the front end portion, the front-rear center portion, and the rear end portion of the lateral portion 1012C.

Then, the side panel 1012 can be detached from the indoor side of the operation cabin 1004 by removing the fixing member. That is, the side panel 1012 can be removed from the insertion space 1035 without removing the chassis frame 1031 from the operation unit 1010, and the side panel 1012 can be easily removed. For example, when the cabin portion 1011 is fixed to the operation portion 1010 by welding, the side panel 1012 can be inserted into the insertion space 1035 without removing the cabin portion 1011 from the operation portion 1010 It is possible to remove it.

[Other Embodiments]

(6) In the above embodiment, the dust cover 1021 may be configured to be opened and closed integrally with the engine bonnet 1017.

24 and 25, the driver's seat 1009 is configured to be movable in the fore-and-aft direction and swingable about the axis X1001 extending in the left-right direction. The driver's seat 1009 is fixed to the engine bonnet 1017 by a first fixing member 1046. By detaching the first fastener 1046, the driver's seat 1009 can be moved forward and swing forward about the axis X1001.

An engine bonnet 1017 is integrally provided in the dust cover 1021. The upper end of the vibration insulating cover 1021 is fixed to the operation cabin 1004 side by the second fixing port 1047 and the knob bolt 1024 is fixed to the stay 1050 on the operation cabin 1004 side via the stay 1021b. (Not shown). The dust cover 1021 can be pivoted downward around the axis Y1001 integrally with the engine bonnet 1017 by detaching the second fastener 1047 and the knob bolt 1048. [

With this configuration, to open the engine compartment 1017A, the first fastener 1046, the second fastener 1047, and the knob bolt 1048 are detached. Then, the driver's seat 1009 is moved forward to pivot forward about the axis X1001. Thereafter, after the door 1026 is detached, the dust cover 1021 is swung downward around the axis Y1001 integrally with the engine bonnet 1017. Then, By thus opening the engine room 1017A, the maintenance in the engine room 1017A can be easily performed.

(7) In the above embodiment, the left end of the side panel 1012 is inserted into the insertion space 1035 on the side of the left side wall of the cabin 1011, but instead or in combination with the front panel 1013 May be inserted into the insertion space on the side of the front wall portion of the cabin portion 1011.

(8) In the above embodiment, the upper end portion P1000 of the side panel 1012 on the side of the chassis 1030 on the indoor side of the operation cabin 1004 is located above the lower end of the lower chassis frame member 1031C But may be set at a position higher than the upper end of the lower chassis frame member 1031C or may be set at a position lower than the upper end of the lower chassis frame member 1031C, Or may be set at a lower position than the above.

The present invention is not limited to the above-described embodiment and other embodiments, and various other modifications are possible. The above-described embodiment and other embodiments may be appropriately combined or omitted as long as no inconsistency occurs.

The present invention is applicable to ordinary combiners as well as self-deformation combiners.

4: Driving cabin
14:
19A: Loop-back portion (loop side wall portion)
19C:
19b: opening
19c: Concave bottom (bottom)
19d:
22: Air conditioning unit
24:
50: Filter
50a:
50b:
52a: upper intake port
P1: Lower end of discharge portion
P2: Lower end of the suction portion
1009: Driver's seat
1010:
1011: cabin part
1012: Side panel (operation panel)
1012D: second longitudinal portion (longitudinal portion)
1014: Lever in the periphery (manipulator)
1030: Chassis
1031: chassis frame
1032: Operation frame
1032A: front and rear frame members
1032B: Mounting frame member
1035: Insert space
1036: Panel cover
1036a:
1037: Bracket
1038: Seal member
P1000: Top

Claims (13)

A driving cab having a loop portion,
An air conditioner unit installed in the loop unit and adjusting the air in the operation cabin; an opening formed in the roof side wall portion constituting the sidewall of the outer periphery of the roof unit and communicating with the air conditioner unit;
And an outside air introduction part installed in the opening part and introducing outside air into the air conditioner unit,
Wherein the outside air introduction portion is configured to suck outside air from upper and lower portions thereof and is provided in the opening portion in an inclined posture upwardly outwardly of the base. The method according to claim 1,
Wherein a protruding portion protruding outwardly of the outside air introduction portion is formed at a portion of the roof side wall portion above the outside air introduction portion. 3. The method according to claim 1 or 2,
And a portion of the loop side wall portion where the opening is formed is formed in an inclined shape outwardly of the base. 3. The method according to claim 1 or 2,
Wherein the outside air introduction portion has an air cleaning filter,
Wherein the filter is installed in an inclined posture upward of the base. 5. The method of claim 4,
Wherein the filter has a suction portion on the outer side and a discharge portion on the inner side so as to face each other,
And the lower end of the discharge portion is set at a position above the lower end of the suction portion. 3. The method according to claim 1 or 2,
A recessed portion is formed in the roof side wall portion so as to enter the inside of the loop portion in an inclined state inwardly of the gas inside,
And the opening portion is formed in a bottom portion of the recessed portion on the entry side. The method according to claim 6,
An upper intake port for sucking outside air is formed in an upper portion of the outside air introduction portion,
Wherein the outside air introduction portion is disposed such that the upper air inlet is located in the concave portion. A driving unit having a driver's seat,
A cabin section covering the upper portion of the operation section,
An operation panel provided on a side or front of the driver's seat and having an operation opening;
A chassis which is installed adjacent to the operation panel on a wall portion of the cabin side on which the operation panel is located with respect to the driver's seat,
A chassis frame for supporting the chassis,
And a driving frame installed to extend from the lower side of the chassis frame along the lower end of the chassis frame in the forward and backward directions and to support the chassis frame and the operation panel,
The lower end of the chassis frame and the upper end of the operation frame are vertically spaced from each other so that an insertion space is formed between the lower end of the chassis frame and the upper end of the operation unit frame, Supported,
Wherein an end of the operation panel on the side of the chassis is supported by the operation unit frame in a state of being inserted into the insertion space,
And a panel cover which covers the lower end of the chassis frame and the upper end of the operation unit frame and covers the insertion space from the outside of the casing. 9. The method of claim 8,
And a seal member is provided between the operation unit frame and the panel cover. 10. The method of claim 9,
Wherein the operation section frame includes a front and rear frame member extending in the front and rear direction and an installation frame member provided along an upper portion of the front and rear frame members and provided with the operation panel,
A vertical portion extending in the vertical direction is provided at an end of the operation panel on the side of the chassis,
Wherein the longitudinal direction portion is inserted into a space outside the base of the installation frame member in the insertion space,
And the sealing member is provided between the longitudinal portion and the panel cover. 11. The method according to any one of claims 8 to 10,
A lateral portion extending transversely along a lower surface of the chassis frame is provided on an upper portion of the panel cover,
Wherein the lateral portion is supported on a lower surface of the chassis frame. 11. The method according to any one of claims 8 to 10,
A bracket extending downward is provided at a lower end portion of the chassis frame,
And the panel cover is supported on the bracket. 11. The method according to any one of claims 8 to 10,
Wherein an upper end portion of the chassis-side inner side of the cabin portion of the operation panel is set at a position higher than a lower end portion of the chassis frame.

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