JP2024060095A - combine - Google Patents

Abstract

[Problem] To provide a combine harvester that can be changed from a cabin-less specification to a cabin specification afterwards. [Solution] The combine harvester has a driver's section with a driver's seat, a cabin that covers the driver's section, and a driver's section frame that is placed on a chassis frame. The driver's section frame has a front column frame and a step frame that extends rearward from the front column frame. At least one of the left and right bottom cabin frames of the cabin frame that the cabin has is disposed above the step frame. [Selected Figure] Fig. 7E

Description

The present invention relates to a combine harvester, and more particularly to a cabin of the combine harvester.

For example, there are combine harvesters with no cabin as shown in Patent Document 1 and with a cabin as shown in Patent Document 2. However, when purchasing a combine harvester, the user must select between the cabin-less specification and the cabin specification, and if the user selects the cabin-less specification at the time of purchase, the user cannot use the combine harvester with the cabin specification unless the user newly purchases the cabin specification.

JP 2013-78275 A JP 2008-28 A

The present invention has been made in consideration of the above circumstances, and its object is to provide a combine harvester in which a cabin-less specification can be changed to a cabin specification afterwards.

The combine harvester according to the present invention has a driver's section with a driver's seat, a cabin that covers the driver's section, and a driver's section frame that is placed on a chassis frame. The driver's section frame has a front column frame and a step frame that extends rearward from the front column frame. At least one of the left and right bottom cabin frames of the cabin frame that the cabin has is positioned above the step frame.

In the present invention, the bottom cabin frame may be in contact with the step frame.

In the present invention, the bottom cabin frame may be connected to the step frame.

In the present invention, a cabin door may be provided on the right side of the cabin frame.

In the present invention, a front connecting frame that connects the front parts of the cabin frames may be supported by the front column frame.

Perspective view of a combine harvester Perspective view of a combine harvester Perspective view of a combine harvester without a cabin Perspective view of the cabin Perspective view of the cabin A perspective view of the driver's frame Perspective view of cabin frame FIG. 13 is a perspective view showing the details of the mounting portion at the left front portion. FIG. 13 is a perspective view showing the details of the mounting portion at the right front portion FIG. 13 is a perspective view showing the details of the mounting portion at the left rear. A perspective view showing the details of the mounting portion at the right rear A perspective view showing the details of the mounting part at the right bottom Rear view of the driver's seat Plan view of the driver's section

An example of a combine harvester according to the present invention is described below.

[Overall structure of combine harvester]
1 and 2 are respectively a left front perspective view and a right front perspective view of a combine harvester 100 according to the present embodiment. In the drawings, the front-rear direction, the left-right direction, and the up-down direction of the combine harvester 100 are indicated by arrows.

The combine harvester 100 mainly comprises a traveling device 1, a harvesting device 2, a threshing device 3, and 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 crawler devices 11 provided on the left and right. The transmission transmits power from an engine 90 (see FIG. 8 ) to the crawler devices 11. The crawler devices 11 cause the combine harvester 100 to travel in the forward/rearward direction and turn in the left/right direction.

The reaping device 2 is provided in front of the traveling device 1. The reaping device 2 includes a reel 21, a cutter (cutting blade) 22, an auger (transverse feed screw) 23, and a feeder 24.
The reel 21 guides the stalks in the field to the cutter 22 by rotating.
The reel 22 cuts the stalks guided by the reel 21. The auger 23 collects the stalks cut by the cutter 22 at a predetermined position. The feeder 24 supplies the stalks cut by the reaping device 2 to the threshing device 3 via a feeder house 25. The feeder house 25 contains:
A transport conveyor is built in to transport the grain stalks collected by the auger 23 to the rotor.

The threshing device 3 is provided behind the reaping device 2. The threshing device 3 includes a threshing drum, a receiving net, and
and a front rotor. The threshing drum threshes the culms by rotating. The threshing drum also transports the culms by rotating. The receiving net supports the culms transported by the threshing drum and drops the threshed grains into the sorting device 4. The front rotor sends the culms transported by the feeder 24 to the threshing device 3. The front rotor not only transports 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 rocking device and a blowing device (winnower). The rocking device sifts the threshed grains to sort the grains. The grains sorted by the rocking device are transported by the grain transport device and fed to the grain tank 51 through an inlet.
The blower assists in sorting the grains by blowing away impurities such as straw dust contained in the grains. The impurities such as straw dust are discharged from the stalk outlet (
The water is discharged to the outside through a passage (not shown).

The storage device 5 is provided to the right of the threshing device 3 and the sorting device 4. Therefore, the threshing device 3, the sorting device 4, and the storage device 5 are arranged in parallel on the left and right above the chassis frame 10. The storage device 5 is equipped with a grain tank 51. The grain tank 51 stores the grains transported from the sorting device 4. The discharge auger 52 is used to discharge the grains in the grain tank 51. The discharge auger 52 is configured to rotate in the vertical and horizontal directions when discharging grains, so that the grains can be discharged to any desired location.

The driver's section 6 is provided on the right front part of the machine body, in front of the grain tank 51. The driver's section 6 includes a driver's seat 6a where an operator sits, a steering wheel 6b arranged in front of the driver's seat 6a, a front column 6c arranged in front of a steering column supporting a steering shaft of the steering wheel 6b, and the like, and various operating tools such as a gear shift lever, a clutch lever, and switches are arranged around these. The driver's seat 6a, the steering wheel 6b, the front column 6c, and the like of the driver's section 6 (see FIG. 3) are covered by a cabin 7.

The driving section 6 includes a driving section frame 60 as shown in FIG.
The driver's section frame 60 is mounted on the chassis frame 10. The driver's section frame 60 includes a front column frame 61 and left and right step frames 62 extending rearward from the front column frame 61.
The floor frame 62L, 62R is erected from the rear ends of the step frames 62L, 62R.
3, a back plate 64 erected from the floor frame 63, and a rear frame portion 65 supporting the rear end of the back plate 64.

The front column frame 61 forms the framework of the front column 6c and has a rectangular frame shape when viewed from the front. The front column frame 61 is made up of an upper front column frame 611, a lower front column frame 612, a left front column frame 613L, and a right front column frame 613R. The upper front column frame 611 and the lower front column frame 612 extend in the left-right direction. The left front column frame 613L and the right front column frame 613R are
The left front column frame 613L and the right front column frame 613R are plate members that are substantially trapezoidal in side view. The front column frame 61 corresponds to a first mounting portion to which the cabin 7 can be mounted.

The left and right step frames 62L, 62R extend in the front-rear direction. A floor panel (not shown) is horizontally supported between the left and right step frames 62L, 62R. A step 621 for ascending and descending is attached to the right step frame 62R.

The floor frame 63 includes a first rising surface 63a extending upward from the rear ends of the left and right step frames 62L, 62R and the floor panel, a first horizontal surface 63b extending rearward from the upper end of the first rising surface 63a, a second rising surface 63c extending upward from the rear end of the first horizontal surface 63b, and a second horizontal surface 63d extending rearward from the upper end of the second rising surface 63c. The driver's seat 6a is placed on the upper part of the floor frame 63, more specifically, on the upper part of the first horizontal surface 63b. In addition, an engine 90 (see FIG. 8) is placed below the floor frame 63.
will be placed.

The rear plate 64 is erected from the upper end of the second rising surface 63c of the floor frame 63. The rear plate 64 is inclined rearward as it goes upward, and the rear end is in contact with the rear frame portion 6
5. The rear plate 64 and the second horizontal surface 63d of the floor frame 63
The space enclosed by the brackets houses an air cleaner 91 for the engine 90 (see FIG. 8).

8, the rear frame portion 65 includes left and right vertical frames 66L, 66R disposed behind the engine 90, a connecting frame 67 (corresponding to a connecting portion) connecting upper portions of the left and right vertical frames 66L, 66R, and a pair of inclined frames 68, 68 (corresponding to inclined portions) extending upward from the rear of the connecting frame 67 while inclining forward.
The left and right vertical frames 66L, 66R, the connecting frame 67, the pair of inclined frames 68, 68, and the upper support frame 69 are welded together.

The left and right vertical frames 66L, 66R are arranged side by side on the left and right and stand upright from the chassis frame 10. The connecting frame 67 has a rectangular plate shape in a plan view, and its rear end is supported by the vertical frames 66L, 66R. The front end of the connecting frame 67 is connected to the rear end of the floor frame 63. The inclined frame 68 extends at an angle from the rear of the connecting frame 67 toward the rear end of the back plate 64.

The upper support frame 69 is disposed so as to span across the upper portions of the pair of inclined frames 68, 68. The upper support frame 69 is located forward of the left and right vertical frames 66L, 66R. The upper support frame 69 is connected to the rear end of the back plate 64. A protective cover 69a that protects the front side of the muffler 92 is provided on the left end of the upper support frame 69 (see FIG. 8). The protective cover 69a is also connected to the threshing device 3.
By connecting the protective cover 69a to the threshing device 3, the driver's frame 60 is reinforced.

By configuring the driver's section frame 60 as described above, the engine 90 can be disposed below the driver's section 6 while firmly supporting the cabin 7 and the grain tank 51 can be made larger.

The cabin 7 includes a cabin frame 70 as shown in FIG. 6. The cabin frame 70 includes left and right bottom cabin frames 71 and 72, and left and right front cabin frames 73.
, 74, left and right rear cabin frames 75, 75, a door support frame 76, and a roof frame 77.

A windshield 7a (see FIG. 4A) is provided on the front surface of the cabin frame 70. A side panel 7b (see FIG. 4B) including a left window is provided on the left side surface of the cabin frame 70. A cabin door 7b (see FIG. 4C) including a right window is provided on the right side surface of the cabin frame 70.
c (see FIG. 4A). Also, a roof 7d is provided on the upper surface of the cabin frame 70.
(See FIG. 4A).

Furthermore, when the cabin 7 is attached to or detached from the driver's section 6, the cabin 7 is suspended from above. The cabin 7 is suspended using a suspension bracket 7e (see FIG. 4B ) provided on the left rear portion of the cabin frame 70 and a handrail 7f (see FIG. 4A ) for boarding and disembarking provided on the right front portion of the cabin frame 70. The suspension bracket 7e is provided on an upper portion of a left rear cabin frame 75 of the cabin frame 70, protruding to the left.
The handrail 7f is provided on the right front cabin frame 74 of the cabin frame 70.

The left bottom cabin frame 71 constitutes the bottom of the left side of the cabin 7. The left bottom cabin frame 71 extends horizontally rearward from the front of the cabin 7 and then extends upward at an angle. The front end of the left bottom cabin frame 71 is connected to the lower end of the left front cabin frame 73. The rear end of the left bottom cabin frame 71 is connected to the lower part of the left rear cabin frame 75.

The right bottom cabin frame 72 constitutes the bottom of the right side of the cabin 7. The right bottom cabin frame 72 has a plate shape that extends horizontally in the front-rear direction.
The front end of the right bottom cabin frame 72 is connected to the lower end of the right front cabin frame 74. The rear end of the right bottom cabin frame 72 is connected to the lower end of the door support frame 76. When the cabin 7 is attached to the driver's section 6, the right bottom cabin frame 72 is located above the right step frame 62R.

The left front cabin frame 73 and the right front cabin frame 74 extend in the vertical direction and are disposed on the left and right sides of the front of the cabin 7, respectively. The upper ends of the left front cabin frame 73 and the right front cabin frame 74 are connected to a roof frame 77. The cabin 7 is disposed such that the bottom of the right side is lower than the bottom of the left side. Therefore, the right front cabin frame 74 is longer downward than the left front cabin frame 73. The left front cabin frame 73
and the right front cabin frame 74 are connected by a front connecting frame 78. The front connecting frame 78 includes left and right protruding pieces 78a, 78b that protrude forward further than the left front cabin frame 73 and the right front cabin frame 74, and a curved portion 78c that connects the front ends of the left and right protruding pieces 78a, 78b and curves forward. When the cabin 7 is attached to the driver's section 6, the front connecting frame 78 is located in front of the upper front column frame 611.

The left and right rear cabin frames 75, 75 extend in the vertical direction and are disposed on the left and right sides of the rear of the cabin 7. The upper ends of the rear cabin frames 75 are connected to the rear of the roof frame 77. The lower ends of the left and right rear cabin frames 75 are connected to a rear connecting frame 79. When the cabin 7 is attached to the driver's section 6, the rear connecting frame 79
It is located above the upper support frame 69 .

The door support frame 76 extends upward from the bottom of the right side of the cabin 7, then extends while inclining backward, and then extends upward again. The upper end of the door support frame 76 is connected to the rear part of the roof frame 77. The cabin door 7c is rotatably supported by the door support frame 76.

The roof frame 77 constitutes the ceiling of the cabin 7. The roof frame 77 has a rectangular frame shape in a plan view.
3 and 74. The roof frame 77 is covered with a roof 7d.

Next, a mounting structure for mounting the cabin 7 to the driver's section 6 will be described in detail.
It is attached at five mounting points 81-85 located at the left front, right front, left rear, right rear, and right bottom.

The left front mounting portion 81 is located at the left front portion of the cabin frame 70, specifically, at the left end portion of the front connecting frame 78.
8 and a lower bracket 812 provided on a side surface of the left front column frame 613L of the driver's section frame 60.

The upper bracket 811 is fixed to the lower part of the left protruding piece 78a of the front connecting frame 78. The upper bracket 811 has two mutually perpendicular surfaces (a side surface 811a and a lower surface 811b).
The upper bracket 811 has a side surface 811a which is connected to the lower part of the left protruding piece 78a. The upper bracket 811 has a lower surface 811b which is formed with two through holes.

The lower bracket 812 is fixed to the left side surface of the left front column frame 613L. The lower bracket 812 includes a first bracket member 812a that is fastened to the left side surface of the left front column frame 613L with a bolt, and a second bracket member 812b that is welded to an upper portion of the first bracket member 812a. The first bracket member 812a is L
The second bracket member 812b is L-shaped in a side view and supports the second bracket member 812b from below. The second bracket member 812b is L-shaped in a side view and has two through holes formed in the upper surface. The two through holes of the second bracket member 812b and the two through holes of the lower surface 811b of the upper bracket 811 are
The upper bracket 811 can be attached to the lower bracket 812 by inserting a bolt 813 into each through hole and fastening it with a nut 814. This allows the front connecting frame 78 of the cabin frame 70 to be connected to the left front column frame 6 of the driver's section frame 60.
It can be attached to 13L.

A rectangular plate member 815 is disposed above the lower surface 811b of the upper bracket 811. A vibration-isolating plate-shaped rubber is disposed between the plate member 815 and the lower surface 811b of the upper bracket 811. This prevents vibrations from the lower bracket 812 from being transmitted to the upper bracket 811 through the bolts 813.
A vibration-isolating plate-shaped rubber is also disposed between 11b and the upper surface of the second bracket member 812b.
This makes it possible to prevent vibrations from the lower bracket 812 from being directly transmitted to the upper bracket 811. Although a detailed explanation is omitted, this type of vibration-proof support structure is also used for mounting parts 82 to 85 in the front right, rear left, rear right, and bottom right.

A bolt 816 provided on the left front portion of the second bracket member 812 b of the lower bracket 812 is for attaching a work light that illuminates the intake port to the feeder 24 .

The right front mounting portion 82 is located at the right front portion of the cabin frame 70, specifically, at the right end portion of the front connecting frame 78. The mounting portion 82 includes a mounting stay 821.
A plate 821 is generally Z-shaped in plan view.
a is connected to the right front column frame 613 of the driver's section frame 60 by two bolts 822
More specifically, the front surface 8 of the mounting stay 821 is fixed to the left side surface of the right front column frame 613R.
On the other hand, the rear surface 821b of the Z-shaped mounting stay 821 is fixed by two bolts 8
23, the mounting stay 821 is fixed to the left side surface of the right front cabin frame 74 of the cabin frame 70. More specifically, a rear surface 821b of the mounting stay 821 is fixed to a mounting plate 825 provided to protrude leftward from the left side surface of the right front cabin frame 74. The mounting stay 821 enables the right front cabin frame 74 of the cabin frame 70 to be mounted to the right front column frame 613R of the driver's section frame 60.

The left rear mounting portion 83 is located at the left rear of the cabin frame 70, specifically, at the left end of the rear connecting frame 79. The mounting portion 83 is attached to the upper support frame 69 of the driver's section frame 60.
The left bracket 831 (see FIG. 5) is provided on the left end of the left bracket 831.
is provided so as to protrude rearward from the upper support frame 69, and has two bolt holes formed in its upper surface. Meanwhile, two through holes are formed in the left end portion of the rear connecting frame 79. Bolts 832 are inserted into the two through holes of the rear connecting frame 79, and the bolts 832 are fastened to the left end portion of the rear connecting frame 79.
through the bolt holes of the left bracket 831, the rear connecting frame 79 can be attached to the left bracket 831. In this way, the rear connecting frame 79 of the cabin frame 70 can be attached to the upper support frame 69 of the driver's section frame 60.

The right rear mounting portion 84 is located at the right rear portion of the cabin frame 70, specifically, at the right end portion of the rear connecting frame 79. The mounting portion 84 is attached to the upper support frame 69 of the driver's section frame 60.
The right bracket 841 (see FIG. 5) is provided on the right end of the right bracket 841.
is provided so as to protrude rearward from the upper support frame 69, and has two bolt holes formed in its upper surface. Meanwhile, two through holes are formed in the right end portion of the rear connecting frame 79. Bolts 842 are inserted into the two through holes of the rear connecting frame 79, and the bolts 842 are fastened to the right end portion of the rear connecting frame 79.
through the bolt holes of the right bracket 841, the rear connecting frame 79 can be attached to the right bracket 841. In this way, the rear connecting frame 79 of the cabin frame 70 can be attached to the upper support frame 69 of the driver's section frame 60.

5, a positioning pin 843 is provided on the top surface of the right bracket 841, protruding upward. The positioning pin 843 is provided at a position rearward of the two bolt holes formed in the right bracket 841, and between the two bolt holes in rear view. On the other hand, a positioning pin 843 is provided on the right end of the rear connecting frame 79, as shown in FIG.
The positioning pin 843 and the positioning hole 844 corresponding to the positioning pin 843 are formed.
By providing a positioning portion constituted by 44, it is possible to first determine the position and then perform the final fixing of each mounting portion, and the cabin 7 will not shift relative to the driver's section 6. In addition, by positioning the positioning pin 843 between the two bolt holes, it is possible to easily align the two bolt holes with the two through holes formed in the rear connecting frame 79.

The right bottom mounting portion 85 is located on the right bottom cabin frame 72 of the cabin frame 70. The right bottom cabin frame 72 has two through holes formed in the front-rear direction.
Two bolt holes are formed in the front-rear direction in the right step frame 62R of the driver's section frame 60. The right bottom cabin frame 72 of the cabin frame 70 is secured to the right step frame 62R of the driver's section frame 60 by inserting bolts 851 into the two through holes of the right bottom cabin frame 72 and fastening the bolts 851 to the bolt holes of the right step frame 62R.
It can be attached to.

The above-mentioned mounting portions 81 to 85 enable the cabin frame 70 to be securely attached to the driver's section frame 60. The front column frame 61 and the rear frame portion 65 can firmly support the cabin 7 in the front, rear, left and right directions, and vibration of the cabin 7 can be suppressed even if the cabin 7 is attached to the driver's section 6 later.

9, with the cabin 7 attached to the driver's section 6, a sponge 6d is interposed between the front column 6c of the driver's section 6 and the front connecting frame 78 of the cabin frame 70. The sponge 6d is disposed continuously on the front surface and both side surfaces of the front column 6c.
A part of the sponge 6d is crushed from above by the front connecting frame 78.
By providing d, the gap that occurs between the outer surface of the front column 6c and the inner surface of the front connecting frame 78 can be filled.

In this embodiment, an example of a normal type combine harvester has been shown, but the present invention is not limited to this, and may also be applied to a head-feeding type combine harvester.

The present invention is not limited to the above-described embodiment, and various improvements and modifications can be made without departing from the spirit and scope of the present invention.

[Additional Notes]
As described above, the combine harvester of this embodiment comprises a front column that supports an operating member in front of the driver's seat, and a rear frame portion that stands upright from the chassis frame behind the driver's seat, and the front column has a first mounting portion to which a cabin can be attached, and the rear frame portion has a plurality of vertical frames that stand upright from the chassis frame and a second mounting portion that is attached to the vertical frames and to which the cabin can be attached.

In this embodiment, a threshing unit may be provided, and the second attachment unit may be connected to the threshing unit.

In this embodiment, an engine is provided below the driver's seat, and the rear frame portion has the vertical frames disposed behind the engine, a connecting portion connecting the upper portions of the vertical frames, an inclined portion extending upward from the rear of the connecting portion in an inclined posture toward the front, and the second mounting portion provided on the upper portion of the inclined portion, and the cabin may be attached to the second mounting portion while being placed on the upper portion of the second mounting portion.

In this embodiment, the rear frame portion and the cabin may be provided with a positioning portion that determines the position of the cabin relative to the rear frame portion.

In this embodiment, the second mounting portion may be provided with a protective cover that protects the front side of the muffler.

According to this embodiment, a combine harvester without a cabin can be modified to have a cabin after the fact. In addition, the front column and multiple vertical frames can firmly support the cabin from the front to the back and left to right, so that vibration of the cabin can be suppressed even if the cabin is installed after the fact.

6 Driver's section 6a Driver's seat 7 Cabin 7c Cabin door 60 Driver's section frame 61 Front column frame 62R Right step frame 62L Left step frame 70 Cabin frame 72 Bottom cabin frame 78 Front connecting frame

Claims (5)

A driver's section having a driver's seat;
A cabin covering the driver's section;
A driver's section frame mounted on the chassis frame;
having
The driver's section frame is
Front column frame,
a step frame extending rearward from the front column frame;
Equipped with
A combine harvester in which at least one of the left and right bottom cabin frames of the cabin frame provided in the cabin is positioned above the step frame. The combine of claim 1, wherein the bottom cabin frame is in contact with the step frame. The combine of claim 1, wherein the bottom cabin frame is connected to the step frame. The combine harvester according to any one of claims 1 to 3, wherein a cabin door is provided on the right side of the cabin frame. The combine harvester according to any one of claims 1 to 4, wherein a front connecting frame that connects the front of the cabin frame is supported by the front column frame.

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