JP7161580B2 - combine - Google Patents

Description

The present invention relates to combine harvesters, and more particularly to combine harvester cabins.

As shown in Patent Literature 1, a work vehicle such as a combine having a cabin is known. By the way, a window may be provided on the rear wall of the cabin, but when the air conditioner unit is arranged in the rear of the cabin as in Patent Document 1, the rearward visibility may be difficult depending on the positional relationship between the window and the air conditioner unit. sexuality worsens.

Japanese Utility Model Laid-Open No. 6-15430

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to provide a technique suitable for a combine harvester in which a window and an air conditioner unit are arranged in the rear part of the cabin.

An exemplary inventive combine comprises:
driving department;
a rear window provided on the rear wall of the cabin covering the driving unit;
an air conditioning unit arranged at the rear of the cabin,
A rear end of the air conditioner unit is located forward of the rear window.

Perspective view of a combine harvester Perspective view of a combine harvester Perspective view of the combine with the cabin removed Perspective view of the cabin Perspective view of the cabin Front view inside the cabin Perspective view showing an enlarged part of the interior of the cabin View of the driving section from the rear Perspective view of cabin frame Perspective view showing an enlarged lower part of the interior side of the left window Perspective view showing an enlarged upper part of the exterior side of the right window Top view of the cabin Sectional view of the roof Perspective view of the cabin with the outer roof removed Exploded perspective view of outside air introduction part for air conditioner Exploded perspective view of outside air introduction part for condenser

An example of the combine according to the present invention will be described.

[Overall structure of combine harvester]
1 and 2 are respectively a perspective view of the combine 100 of this embodiment as seen from the left front and a perspective view as seen from the right front. In the drawing, arrows indicate the front-back direction, left-right direction, and up-down direction of the combine 100 .

The combine 100 mainly includes a travel device 1 , a reaping device 2 , a threshing device 3 , a sorting device 4 and a storage device 5 .

The traveling device 1 is provided below the chassis frame 10 . The traveling device 1 includes a transmission (not shown) and a pair of left and right crawler devices 11 . The transmission transmits the power of engine 90 (see FIG. 14) to crawler device 11 . The crawler device 11 causes the combine harvester 100 to travel in the front-rear direction and the combine harvester 100 to turn in the left-right direction.

The harvesting device 2 is provided in front of the traveling device 1 . The harvesting device 2 includes a reel 21 , a cutter (cutting blade) 22 , an auger (traverse screw) 23 , and a feeder 24 . The reel 21 guides the culms in the field to the cutter 22 by rotating. Cutter 22 cuts the culm guided by reel 21 . The auger 23 collects the culms cut by the cutter 22 at a predetermined position. The feeder 24 supplies the culms harvested by the harvesting device 2 to the threshing device 3 via the feeder house 25 . The feeder house 25 incorporates a conveyer for conveying the culms collected by the auger 23 to the rotor.

The threshing device 3 is provided behind the harvesting device 2 . The threshing device 3 includes a threshing cylinder, a receiving net, and a front rotor. The threshing cylinder threshes the culms by rotating. Also, the handling cylinder conveys the culms by rotating. The receiving net supports the grain culms conveyed by the threshing drum and drops the threshed grains to the sorting device 4 . The front rotor feeds the culms conveyed by the feeder 24 to the threshing device 3 . Moreover, the front rotor not only conveys the culms, but also has the function of performing preliminary threshing (pre-threshing).

The sorting device 4 is provided below the threshing device 3 . The sorting device 4 includes a swing device and an air blower (a winnowing device). The rocking device screens the threshing to sort out the grain. The grains sorted by the swinging device are conveyed by the grain conveying device and put into the grain tank 51 through the inlet. The blower assists in sorting the grain by blowing away debris such as straw that is contained in the threshing. Contaminants such as straw scraps are discharged to the outside from a culm removal port (not shown) provided at the rear of the sorting device 4 .

The storage device 5 is provided on the right side of the threshing device 3 and the sorting device 4 . Therefore, the threshing device 3 and the sorting device 4 and the storage device 5 are arranged side by side above the chassis frame 10 . The storage device 5 includes a grain tank 51 . The grain tank 51 stores grains transported from the sorting device 4 . The discharge auger 52 is used when the grains in the grain tank 51 are discharged. The discharge auger 52 is configured to be rotated in the vertical and horizontal directions when performing the grain discharging work, and to be able to discharge the grain to an arbitrary location.

The driving unit 6 is provided in front of the grain tank 51 and in the right front portion of the aircraft. The operation unit 6 includes a driver seat 61 on which an operator sits, a steering handle 62 arranged in front of the driver seat 61, a front column 63 arranged in front of the steering column supporting the steering shaft of the steering handle 62, A rack 64 and the like are arranged behind the driver's seat 61, and various operating tools such as a shift lever, a clutch lever, and switches are arranged around them. A driver's seat 61 , a steering handle 62 , a front column 63 , a rack 64 and the like (see FIG. 3 ) of the driver 6 are covered with the cabin 7 .

As shown in FIG. 5A, the rack 64 extends in the left-right direction at the rear portion of the driving portion 6. As shown in FIG. Rack 64 can be used as a luggage storage area. At the right end of the rack 64, an operation box 65 having a grain clutch lever 65a and a cross lever 65b is arranged. The grain clutch lever 65 a is an operating member for engaging and disengaging the clutch of the discharge auger 52 . The cross lever 65b is an operating member that rotates the discharge auger 52 vertically and horizontally. The cross lever 65b is arranged at a position closer to the driver's seat 61 than the grain clutch lever 65a. By providing the operation box 65 for the discharge auger at the right rear portion of the operation section 6 in this manner, the discharge auger 52 that rotates around the right rear end portion of the combine harvester 100 as a fulcrum can be easily operated. A clutch lever 66 for operating the harvesting device 2 and the threshing device 3 is arranged on the left side of the driver's seat 61, as shown in FIG.

As shown in FIG. 6 , an engine 90 is arranged below the driver's seat 61 , specifically below the driver's seat 61 . An air cleaner 91 for cleaning the air supplied to the engine 90 is arranged behind the driver's seat 61 . A precleaner 92 for preliminarily purifying the air supplied to the engine 90 is installed behind and above the driver's seat 61 .

The cabin 7 has a cabin frame 70 as shown in FIG. The cabin frame 70 includes left and right bottom cabin frames 70a and 70b, left and right front cabin frames 70c and 70d, left and right rear cabin frames 70e and 70e, a door support frame 70f, and a roof frame 70g.

A windshield 71 (see FIG. 4A) is provided on the front surface of the cabin frame 70 . A side panel 72 (see FIG. 4B) including a left window 76 is provided on the left side of the cabin frame 70 . A cabin door 73 (see FIG. 4A) including a right window 77 is provided on the right side of the cabin frame 70 . A roof 74 (see FIG. 4A) is provided on the upper surface of the cabin frame 70 . A rear panel 75 (see FIG. 4B) including a rear window 78 is provided on the rear surface of the cabin frame 70 . A rear panel 75 constitutes the rear wall of the cabin 7 .

The left bottom cabin frame 70 a constitutes the left bottom of the cabin 7 . The left bottom cabin frame 70a horizontally extends rearward from the front portion of the cabin 7, and then extends obliquely upward. The front end of the left bottom cabin frame 70a is connected to the lower end of the left front cabin frame 70c. The rear end of the left bottom cabin frame 70a is connected to the lower portion of the left rear cabin frame 70e.

The right bottom cabin frame 70 b constitutes the right bottom of the cabin 7 . The right bottom cabin frame 70b has a plate shape extending horizontally in the front-rear direction. The front end of the right bottom cabin frame 70b is connected to the lower end of the right front cabin frame 70d. The rear end of the right bottom cabin frame 70b is connected to the lower end of the door support frame 70f.

The left front cabin frame 70c and the right front cabin frame 70d extend in the vertical direction and are arranged on the left and right sides of the front portion of the cabin 7, respectively. Upper ends of the left front cabin frame 70c and the right front cabin frame 70d are connected to the roof frame 70g. The cabin 7 is arranged such that the bottom on the right side is lower than the bottom on the left side. Therefore, the right front cabin frame 70d is longer downward than the left front cabin frame 70c. The left front cabin frame 70c and the right front cabin frame 70d are connected by a front connection frame 70h. The front connecting frame 70h is positioned above the front column 63 when the cabin 7 is attached to the driving section 6. As shown in FIG.

The left and right rear cabin frames 70e, 70e extend in the vertical direction and are arranged on the left and right rear portions of the cabin 7, respectively. The upper end of the rear cabin frame 70e is connected to the rear portion of the roof frame 70g. The lower ends of the left and right rear cabin frames 70e are connected by a rear connecting frame 70i.

The door support frame 70f extends upward from the bottom portion on the right side of the cabin 7, then extends while being inclined rearward, and then extends upward again. The upper end of the door support frame 70f is connected to the rear portion of the roof frame 70g. A cabin door 73 is rotatably supported by the door support frame 70f.

The roof frame 70g constitutes the ceiling of the cabin 7. As shown in FIG. The roof frame 70g has a rectangular frame shape in plan view. A front portion of the roof frame 70g protrudes further forward than the left and right front cabin frames 70c and 70d. The roof frame 70g is covered with a roof 74. As shown in FIG. The rear portion of the roof frame 70g is provided with inclined portions 70j and 70k that incline toward the center in the width direction of the cabin 7 toward the rear. The left inclined portion 70j has an inclined shape in order to increase the opening area of the air conditioner outside air introduction port 841, as will be described later. Further, the right inclined portion 70k has an inclined shape in order to increase the opening area of an outside air introduction port 851 for a condenser, which will be described later. The amount of air taken in from the condenser outside air introduction port 851 is larger than the amount of air taken in from the air conditioner outside air introduction port 841, and a larger opening area is required. is formed to extend to the front of the cabin 7 compared to the front end of the .

Next, the left window 76 will be described. FIG. 8 shows the lower part of the left window 76 on the interior side. The left window 76 includes a hinge 76a (see FIG. 4B), a lock lever 76b, and an engagement receiving piece 76c.

The hinge 76a rotatably supports the left window 76. As shown in FIG. The hinge 76 a is fixed to the side panel 72 above the left window 76 at its proximal end and fixed to the left window 76 at its distal end. Two hinges 76a are provided above the left window 76 in the front-rear direction. As a result, the left window 76 opens upward so that the lower end of the left window 76 rotates about the upper end of the side panel 72 as a fulcrum of rotation. The left window 76 may be provided with a gas spring (not shown) that biases the left window 76 in the opening direction.

The lock lever 76b is rotatably attached to the lower end of the left window 76. As shown in FIG. The rotation shaft of the lock lever 76b faces in the left-right direction. This allows the lock lever 76b to rotate vertically. The lock lever 76b is provided with an engagement claw 76d that engages with the engagement receiving piece 76c.

The engagement receiving piece 76 c is attached to the side panel 72 below the left window 76 . The engagement receiving piece 76c is provided with an engagement recess 76e with which the engagement claw 76d of the lock lever 76b engages.

Therefore, when the lock lever 76b is rotated downward (counterclockwise when viewed from inside the cabin 7), the engagement claw 76d engages with the engagement recess 76e of the engagement receiving piece 76c in a locked state (the state shown in FIG. 8). ), and when the lock lever 76b is rotated upward (clockwise when viewed from the inside of the cabin 7), the engagement claw 76d is disengaged from the engagement recess 76e of the engagement receiving piece 76c to enter an unlocked state.

The right window 77, like the left window 76, includes a hinge 77a (see FIG. 4A), a lock lever, and an engagement receiving piece. The hinge 77a rotatably supports the right window 77. As shown in FIG. The hinge 77 a is fixed to the cabin door 73 above the right window 77 at its proximal end and fixed to the right window 77 at its distal end. Two hinges 77a are provided above the right window 77 in the front-rear direction. As a result, the right window 77 opens upward with respect to the cabin door 73 such that the lower end side rotates with the upper end side serving as a fulcrum of rotation.

The lock lever and engagement receiving piece of the right window 77 have the same shape as the lock lever 76b and engagement receiving piece 76c of the left window 76 shown in FIG. However, the shape of the lock lever of the right window 77 may be symmetrical with the shape of the lock lever 76b of the left window 76. FIG. At this time, the right window 77 is locked when the lock lever is rotated downward (clockwise when viewed from inside the cabin 7), and is locked when the lock lever is rotated upward (counterclockwise when viewed from inside the cabin 7). Released.

FIG. 9 shows the upper part of the right window 77 on the exterior side. The right window 77 has a drip prevention canopy 77f at its upper end. The drip prevention canopy 77f extends in the front-rear direction and covers the entire right window 77. As shown in FIG. As shown in FIG. 9, the drip prevention canopy 77f is a member obtained by bending a long plate so that the cross section thereof is substantially L-shaped. The lower surface of the dripping prevention eaves 77f is arranged so as to be substantially horizontal, and the side surfaces of the dripping prevention eaves 77f are arranged so as to be inclined with respect to the vertical direction. The dripping prevention canopy 77f is fixed to the cabin door 73, and the hinge 77a is fixed to the side surface of the dripping prevention canopy 77f.

Similarly, the left window 76 has a drip prevention eaves 76f at its upper end. The drip prevention canopy 76f extends in the front-rear direction and covers the entire left window 76 (see FIG. 10). However, the drip prevention canopy 76f extends beyond the rear end of the left window 76 to the rear end of the side panel 72 as shown in FIG. Therefore, the drip prevention eaves 76 f are longer than the drip prevention eaves 77 f of the right window 77 . Since the cross-sectional shape and mounting method of the drip prevention eaves 76f are the same as those of the drip prevention eaves 77f of the right window 77, the description thereof will be omitted.

Next, the cabin door 73 will be explained. The cabin door 73 has a door hinge 73a (see FIG. 4A). The door hinge 73a rotatably supports the cabin door 73. As shown in FIG. The door hinge 73a is fixed to the cabin frame 70 on the base end side and fixed to the cabin door 73 on the tip end side. Two door hinges 73a are provided in the up-down direction on the upper part of the door support frame 70f of the cabin frame 70. As shown in FIG. As a result, the front end side of the cabin door 73 rotates with respect to the cabin 7 with the rear end side serving as a rotation fulcrum. According to this configuration, when the operator gets on and off by opening the cabin door 73, the frontage can be widened because the cabin door 73 opens rearward, making it easier to get on and off.

Next, the roof 74 will be explained. FIG. 10 shows the roof 74 viewed from above. 11 is a cross-sectional view of the rear portion of the roof 74. FIG. The roof 74 has an inner roof 741 and an outer roof 742 . The inner roof 741 covers the cabin frame 70 from above, and the outer roof 742 covers the inner roof 741 . Between the inner roof 741 and the outer roof 742, an air conditioner unit 8 and a blower duct for blowing air from the air conditioner unit 8 are arranged. is formed in the inner roof 741 .

As shown in FIG. 10, the outer roof 742 is provided with drain holes 74a penetrating vertically. The drain holes 74 a are arranged near mounting bolts for mounting the outer roof 742 to the cabin frame 70 . The drain holes 74a are provided one each on the left and right sides of the front portion, and one each on the left and right sides slightly behind the central portion in the front-rear direction. A drain hole 74c is not provided in the rear portion so that water does not enter the inside from an air conditioner outside air introduction port 841 and a condenser outside air introduction port 851, which will be described later.

The water drain hole 74a on the rear side is arranged above the drip prevention eaves 76f of the left window 76 and the drip prevention eaves 77f of the right window 77. As shown in FIG. As a result, water passing through the drain hole 74a does not drip directly onto the left window 76 and the right window 77 due to the drip prevention eaves 76f and 77f in rainy weather, so that the left window 76 and the right window 77 can be prevented from being soiled. .

As shown in FIG. 11, the air conditioner unit 8 is arranged above the inner roof 741, and the rear portion of the inner roof 741 protrudes downward. Therefore, as shown in FIG. 5A, the inner roof 741 may deteriorate rearward visibility. Therefore, in the present invention, the rear end of the inner roof 741 is inclined and extended upward so that the rear end of the inner roof 741 is substantially at the same height as the upper end position 78a of the rear window 78 . That is, the upper end position 78a of the rear window 78 is higher than the lower end position 741a of the rear portion of the inner roof 741 when viewed from the side. As a result, while the air conditioner unit 8 is laid out in the rear part of the cabin 7 , the visibility of the discharge auger 52 is improved when the grains are discharged from inside the cabin 7 .

FIG. 12 is a view of the cabin 7 with the outer roof 742 removed, as viewed obliquely from above. An air conditioner unit 8 is arranged above the rear portion of the driver's seat 61 . The air conditioner unit 8 includes an air conditioner body 81 and an air conditioner fan 82. - 特許庁A condenser (not shown) and a condenser fan 83 are arranged below the air conditioner unit 8, specifically below the rear panel 75 of the cabin 7. As shown in FIG.

The air conditioner main body 81 and the air conditioner fan 82 are fixed on an air conditioner mounting plate 81a that is laid horizontally between the left and right rear cabin frames 70e of the cabin frame 70. As shown in FIG. The air conditioner main body 81 is arranged in the center of the cabin 7 in the left-right direction, and the air conditioner fan 82 is arranged on the left side of the air conditioner main body 81 . The air conditioner body 81 is connected to an air duct 81 b extending forward in the roof 74 .

A left inclined surface 75a on the left side of the rear panel 75 is provided with an outside air introduction portion 84 for an air conditioner. The left slanted surface 75 a is arranged between the rear panel 75 and the side panel 72 and is slanted forward with respect to the rear panel 75 . A rectangular air conditioner outside air introduction port 841 as shown in FIG. 13 is formed in the upper portion of the left inclined surface 75a. By forming the air conditioner outside air introduction port 841 on the left inclined surface 75a, the area of the air conditioner outside air introduction port 841 can be increased compared to the case where it is formed on a surface extending in the front-rear direction or the left-right direction. By providing the air conditioner outside air introduction port 841 together with the air conditioner fan 82 on the left side of the cabin 7 , the air introduced from the air conditioner outside air introduction port 841 can be immediately supplied to the air conditioner fan 82 and the air conditioner body 81 .

The air conditioner outside air introduction port 841 is covered with a dust removal net 841a. The dust removing net 841a is made of punching metal. Also, the air conditioner outside air introduction port 841 is covered with an introduction amount control plate 842 as shown in FIG. When the introduction amount control plate 842 is attached to the left inclined surface 75a, a gap is formed between the introduction amount control plate 842 and the left inclined surface 75a. The air is introduced into the air conditioner outside air introduction port 841 through the gap 842a (see FIG. 12). As a result, the amount of outside air introduced into the air conditioner unit 8 can be reduced while preventing clogging of the dust removal net 841a by increasing the area of the outside air introduction port 841 for the air conditioner.

A precleaner 92 is arranged on the side of the air conditioner outside air introduction part 84 so as to face the air conditioner outside air introduction part 84 (see FIGS. 6 and 12). As a result, large dust is processed by the precleaner 92 , so air from which the large dust has been removed is introduced from the outside air introduction portion 84 for the air conditioner. The precleaner 92 is supported on the left inclined surface 75a via a support stay. Further, since the precleaner 92 is arranged behind the left window 76 , maintenance of the precleaner 92 can be easily performed from inside the cabin 7 by opening the left window 76 .

The condenser fan 83 supplies air for heat exchange to condensers adjacent to the condenser fan 83 . A receiver 86 is arranged on the right side of the condenser fan 83 (see FIGS. 6 and 14). In addition, a sight glass 87 is provided above the receiver 86 so that the inside can be visually recognized from the side and rear. When the grain tank 51 is opened, the sight glass 87 can be easily viewed from the side and rear. can be confirmed.

Condenser air is introduced from a condenser outside air introduction portion 85 provided on the right inclined surface 75 b on the right side of the rear panel 75 . The right inclined surface 75 b is arranged between the rear panel 75 and the cabin door 73 and is inclined forward with respect to the rear panel 75 . A rectangular external air introduction port 851 for a condenser as shown in FIG. 14 is formed on substantially the entire surface of the right inclined surface 75b. By forming the condenser outside air introduction port 851 on the right inclined surface 75b, the area of the condenser outside air introduction port 851 can be increased compared to the case of forming it on a surface extending in the front-rear direction or the left-right direction. Further, the right inclined surface 75b is inclined more forward than the left inclined surface 75a. It's getting bigger.

The condenser outside air inlet 851 is covered with a dust removal plate 852 as shown in FIG. The central portion of the dust removing plate 852 is made of punching metal.

A first interior panel 6a is arranged inside the upper portion of the outside air introduction port 851 for the condenser. In addition, a recess that is recessed forward from the rear panel 75 is formed below the rear window 78 . This recess is formed by the second interior panel 6b, and accommodates a capacitor in the recess. In addition, as shown in FIG. 7, the upper surface of the second interior panel 6b constitutes a rack 64. As shown in FIG.

The outside air introduction port 851 for the condenser is formed on substantially the entire right inclined surface 75b, but the supply path of the air supplied to the condenser is formed between the outer surface of the first interior panel 6a and the outer surface of the second interior panel 6b. It is only the lower left portion of the outside air inlet 851 for the condenser defined by . This prevents clogging of the dust removal plate 852 by increasing the area of the condenser outside air introduction port 851, or allows outside air to be introduced even if the lower part of the dust removal plate 852 is clogged. It is possible to reduce the introduction amount.

A drain hose (not shown) extending from the air conditioner body 81 passes through the front and left sides of the air conditioner fan 82 from the air conditioner body 81, turns downward at the rear, and extends downward through the inside of the air conditioner outside air introduction port 841. , eventually extending to the rear of the fuselage.

The combine of this embodiment includes an operating section, a rear window provided on the rear wall of the cabin covering the operating section, and an air conditioner unit arranged on the rear portion of the inner roof. is set at a position higher than the lower end position of the rear portion of the inner roof.

According to such a configuration, since the upper end position of the rear window is high, visibility is not deteriorated even though the air conditioner unit is arranged in the rear part of the cabin.

An air conditioner fan of the air conditioner unit and an air conditioner outside air inlet for introducing outside air into the air conditioner fan may be provided on one side in the left-right direction of the cabin. The air introduced from the air conditioner outside air inlet can be immediately supplied to the air conditioner fan and the air conditioner.

Further, a precleaner may be provided on the side of the outside air inlet for the air conditioner. According to this configuration, the outside air containing large dust can be taken in by the precleaner, and the outside air containing no large dust can be taken into the air conditioner.

Further, a condenser outside air inlet for introducing outside air into the condenser fan of the air conditioner may be provided on the other side in the left-right direction of the cabin. According to this configuration, a sufficient amount of outside air can be introduced to the air conditioner from one side of the cabin and to the condenser fan from the other side.

Although the example of the common combine was shown in this embodiment, it is not restricted to this, The present invention may be a self-threshing combine.

The present invention is by no means limited to the above-described embodiments, and various improvements and modifications are possible without departing from the scope of the present invention.

6 Driving Unit 7 Cabin 70 Cabin Frame 74 Roof 741 Inner Roof 741a Bottom Position of Rear of Inner Roof 78 Rear Window 78a Top Position of Rear Window 8 Air Conditioner Unit 841 Outside Air Inlet for Air Conditioner 851 Outside Air Inlet for Condenser 100 Combine

Claims (3)

driving department;
a rear window provided on the rear wall of the cabin covering the driving unit;
an air conditioning unit arranged at the rear of the cabin;
an air conditioner fan of the air conditioner unit;
an air conditioner outside air inlet for introducing outside air into the air conditioner fan ,
The rear end of the air conditioner unit is located forward of the rear window ,
An inclined surface is provided between the rear panel and the side panel of the cabin,
The combine harvester , wherein the outside air introduction port for an air conditioner is provided on the inclined surface . 2. The combine according to claim 1, wherein the air conditioner outside air inlet is located forward of the rear window. The outside air introduction port for the air conditioner is provided on one side of the cabin in the left-right direction,
A condenser outside air inlet for introducing outside air into a condenser fan of an air conditioner is provided on the other side of the cabin in the left-right direction,
The combine according to claim 1 or 2 , wherein the condenser outside air inlet is larger than the air conditioner outside air inlet.

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