combine

Abstract

To provide a combine harvester that is convertible to a cabin specification in a retrofit manner from a cabin-less specification.SOLUTION: A combine harvester includes: an operation part including an operation seat; a cabin covering the operation part; and an operation part frame placed on a chassis frame. The operation part frame includes: a front column frame; and a step frame extending backward from the front column frame. At least one of the right and left bottom cabin frames of a cabin frame constituting the cabin is disposed upward of the step frame.SELECTED DRAWING: Figure 7E

Description

[Technical Field]

[0001] The present invention relates to a combine harvester, and more particularly to a cabin of a combine harvester. [Background technology]

[0002] For example, there are two types of combine harvesters: one without a cabin as shown in Patent Document 1, and the other with a cabin as shown in Patent Document 2. There are specifications with a cabin as shown in Appendix 2. You must choose between a cabin-less model and a cabin-less model. If selected, you will be required to purchase a new cabin version or use a cabin version combine harvester. I was unable to do so. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-78275 [Patent Document 2] Japanese Patent Application Laid-Open No. 2008-28 Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention has been made in view of the above circumstances, and its object is to provide a vehicle without a cabin. To provide a combine harvester which can be later changed to a cabin specification. [Means for solving the problem]

[0005] The combine harvester according to the present invention includes a driver's section having a driver's seat, a cabin covering the driver's section, and a driver's section frame mounted on a chassis frame. The driver's section frame includes a front column frame and a step frame extending rearward from the front column frame. At least one of left and right bottom cabin frames of the cabin frame is disposed above the step frame.

[0006] In the present invention, the bottom cabin frame may be in contact with the step frame.

[0007] In the present invention, the bottom cabin frame may be connected to the step frame.

[0008] In the present invention, a cabin door may be provided on the right side surface of the cabin frame.

[0009] In the present invention, a front connecting frame that connects front portions of the cabin frames may be supported by the front column frame. [Brief explanation of the drawings]

[0010] [Figure 1] Perspective view of a combine harvester [Figure 2] Perspective view of a combine harvester [Figure 3] Perspective view of a combine harvester without a cabin [Figure 4A] Perspective view of the cabin [Figure 4B] Perspective view of the cabin [Figure 5] Perspective view of the driver's section frame [Figure 6] Perspective view of the cabin frame [Figure 7A] A perspective view showing the details of the mounting portion at the left front [Figure 7B] A perspective view showing the details of the mounting portion at the right front [Figure 7C] A perspective view showing the details of the mounting portion at the left rear [Figure 7D]A perspective view showing the details of the mounting part at the right rear [Figure 7E] A perspective view showing the details of the mounting part on the right bottom [Figure 8] Rear view of the driver's seat [Figure 9] Plan view of the driving section DETAILED DESCRIPTION OF THE INVENTION

[0011] An example of a combine harvester according to the present invention will be described.

[0012] [Overall structure of the combine] 1 and 2 are perspective views of a combine harvester 100 according to this embodiment as seen from the left front, and The figure shows the front-rear direction, the left-right direction, and the right-front direction of the combine harvester 100. The up and down directions are indicated by arrows.

[0013] The combine harvester 100 mainly comprises a traveling device 1, a reaping device 2, a threshing device 3, and a sorting device 4. and a storage device 5.

[0014] The running device 1 is provided below the chassis frame 10. The vehicle is equipped with a transmission (not shown) and a pair of crawler devices 11 provided on the left and right sides. The transmission transmits the power of the engine 90 (see FIG. 8) to the crawler device 11. The roller device 11 allows the combine harvester 100 to travel in the forward and backward directions, and the combine harvester 100 to travel in the left and right directions. Or turn it to the right.

[0015] The reaping device 2 is provided in front of the traveling device 1. The reaping device 2 includes a reel 21 and a The cutting machine includes a cutter (cutting blade) 22, an auger (transverse feed screw) 23, and a feeder 24. The reel 21 rotates to guide the stalks in the field to the cutter 22. The reel 21 cuts the stalks. The auger 23 cuts the stalks by the cutter 22. The feeder 24 collects the cut stalks at a predetermined position. The stalks are fed to the threshing device 3 via a feeder house 25. The feeder house 25 includes: A conveyor is built in to transport the stalks collected by the auger 23 to the rotor. .

[0016] The threshing device 3 is provided behind the reaping device 2. The threshing device 3 includes a threshing drum, a receiving net, and The threshing drum threshes the stalks by rotating. The receiving net supports the stalks transported by the threshing drum. The front rotor is connected to the feeder 24 and drops the grains into the sorting device 4. The delivered stalks are sent to the threshing device 3. The front rotor only transports the stalks. It also has the function of performing preliminary threshing (pre-threshing).

[0017] The sorting device 4 is provided below the threshing device 3. The sorting device 4 is equipped with a rocking device and a blower. The shaking device sifts the grains and separates the grains. The grains sorted at the grain feeder are transported by the grain transport device and fed into the grain tank 51 through the feed port. The blower blows away impurities such as straw from the grain. The sorting device 4 is provided with a sieving function to assist in sorting the grains. The water is discharged to the outside through a

[0018] The storage device 5 is provided on the right side of the threshing device 3 and the sorting device 4. The storage device 5 is arranged in parallel on the left and right above the chassis frame 10. The storage device 5 includes a grain tank 51. The grain tank 51 is The discharge auger 52 discharges the grains in the grain tank 51. The discharge auger 52 rotates up, down, left and right when discharging grains. The system is configured so that the grains can be discharged to any desired location.

[0019] The driving section 6 is provided at the front right side of the aircraft body, in front of the grain tank 51. , a driver's seat 6a where the operator sits, a steering wheel disposed in front of the driver's seat 6a, The steering wheel 6b is disposed in front of the steering column supporting the steering shaft of the steering wheel 6b. The front column 6c is equipped with a gear shift lever, clutch lever, switch, etc. The driver's seat 6a of the driver's section 6, the steering wheel 6b, the front wheel 6c, the steering wheel 6d, the steering wheel 6e, the steering wheel 6f ... The front column 6c and the like (see FIG. 3) are covered with a cabin 7.

[0020] The driving section 6 is provided with 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 is mounted on the front column frame 10. and left and right step frames 62 extending rearward from the front column frame 61. and a floor frame 62L, 62R erected from the rear ends of the step frames 62L, 62R. 3, a rear plate 64 erected from the floor frame 63, and the rear end of the rear plate 64 and a rear frame portion 65 for supporting the

[0021] The front column frame 61 forms the framework of the front column 6c. The front column frame 61 has a rectangular frame shape in plan view. Lower front column frame 612, left front column frame 613L, right The upper front column frame 611 and the front column frame 613R are The lower front column frame 612 extends in the left-right direction. The right front column frame 613R and the right front column frame 613L are The left front column frame 612 is connected to the left front column frame 613 at both ends thereof. The right front column frame 613L and the right front column frame 613R are plate members that are approximately trapezoidal in side view. The front column frame 61 corresponds to a first mounting portion to which the cabin 7 can be mounted.

[0022] The left and right step frames 62L, 62R extend in the front-rear direction. A floor panel (not shown) is laid between the frames 62L and 62R. An ascending / descending step 621 is attached to the frame 62R.

[0023] The floor frame 63 is connected to the left and right step frames 62L, 62R and the rear of the floor panel. A first rising surface 63a extending upward from the end, and a rearward portion extending from the upper end of the first rising surface 63a a first horizontal surface 63b extending toward the rear end of the first horizontal surface 63b; and a second rising portion 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 upper part of the floor frame 63, more specifically, the upper part of the first horizontal surface 63b, is provided with a driver's seat. 6a is placed on the floor frame 63. Also, an engine 90 (see FIG. 8) is placed under the floor frame 63. will be placed.

[0024] The back 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 its 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 arrows accommodates an air cleaner 91 for the engine 90 (see FIG. 8).

[0025] The rear frame portion 65 is, as shown in FIG. 8, a left and right longitudinal frame disposed behind the engine 90. The frame 66L, 66R and the connecting frame that connects the upper part of the left and right vertical frames 66L, 66R Frame 67 (corresponding to the connecting part) and the shape of the connecting frame 67 sloping forward from the rear A pair of inclined frames 68, 68 (corresponding to inclined portions) extending upward with force, and the inclined frame 68 The left and right vertical frames are provided with an upper support frame 69 (corresponding to the second mounting portion) provided on the upper part of the frame. Frames 66L, 66R, a connecting frame 67, a pair of inclined frames 68, 68, and an upper support The support frame 69 is welded together.

[0026] The left and right vertical frames 66L and 66R are arranged side by side and are connected to the chassis frame 10. The connecting frame 67 is a rectangular plate in plan view, and its rear end is connected to the vertical frame. The front end of the connecting frame 67 is supported by the floor frame 63. The inclined frame 68 is connected to the rear end of the connecting frame 67. It extends at an angle towards the rear end of the 64.

[0027] The upper support frame 69 is disposed in a state of being horizontally supported on the upper part of the pair of inclined frames 68, 68. The upper support frame 69 is positioned forward of the left and right vertical frames 66L and 66R. The upper support frame 69 is connected to the rear end of the back plate 64. A protective cover 69a is provided at the left end of the support frame 69 to protect the front side of the muffler 92. The protective cover 69a is connected to the threshing device 3 (see FIG. 8). By connecting the protective cover 69a to the threshing device 3, the driver's unit frame 60 is reinforced.

[0028] By configuring the driver's section frame 60 as described above, the engine 90 can be mounted below the driver's section 6. While being placed, it can firmly support Cabin 7 and enlarge Grain Tank 51. It is possible.

[0029] The cabin 7 includes a cabin frame 70 as shown in FIG. The frame 70 is made up of left and right bottom cabin frames 71, 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 and a frame 77.

[0030] A windshield 7a (see FIG. 4A) is provided on the front of the cabin frame 70. Also, on the left side of the cabin frame 70, a side panel 7b (see FIG. 4B) including a left window is provided. ) is provided on the right side of the cabin frame 70. A cabin door 7 including a right window is provided on the right side 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) is provided.

[0031] In addition, when the cabin 7 is attached to or detached from the driver's section 6, the cabin 7 is attached to or detached from the driver's section 6. The cabin 7 is suspended from the left rear of the cabin frame 70. The hanging bracket 7e (see FIG. 4B) and the boarding / exiting bracket provided on the right front part of the cabin frame 70 The suspension bracket 7e is attached to the cabin It is provided on the upper part of the left rear cabin frame 75 of the frame 70, protruding to the left. The handrail 7f is provided on the right front cabin frame 74 of the cabin frame 70.

[0032] The left bottom cabin frame 71 forms the bottom of the left side of the cabin 7. Left Bottom Cabin The frame 71 extends horizontally from the front of the cabin 7 to the rear, 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 attached to the bottom of the left rear cabin frame 75. They are linked.

[0033] The right bottom cabin frame 72 forms the bottom of the right side of the cabin 7. Right bottom cabin The frame 72 is a plate-like member extending horizontally in the front-rear direction. The front end of the right front cabin frame 74 is connected to the lower end of the right bottom cabin frame 74. The rear end of the door support 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 frame 72 is mounted on the right step frame 62R. It is located towards

[0034] The left front cabin frame 73 and the right front cabin frame 74 extend in the vertical direction. The left front cabin frame 73 and the right front cabin frame 74 are respectively arranged on the left and right sides of the front of the cabin 7. The upper end of the bin frame 74 is connected to the roof frame 77. The bottom of the right front cabin frame is positioned lower than the bottom of the left side. The left front cabin frame 73 is longer downward than the left front cabin frame 73. The right front cabin frame 74 is connected to the front connecting frame 78. The frame 78 is located forward of the left front cabin frame 73 and the right front cabin frame 74. The left and right protruding pieces 78a, 78b are connected to each other at the front ends thereof. The front connecting frame 78 is provided with a curved portion 78c that curves forward. 7 is attached, it is located in front of the upper front column frame 611.

[0035] The left and right rear cabin frames 75, 75 extend in the vertical direction and are provided at the rear left and right of the cabin 7. The upper end of the rear cabin frame 75 is attached to the rear of the roof frame 77. The lower ends of the left and right rear cabin frames 75 are connected by a rear connecting frame 79. When the cabin 7 is attached to the driver's section 6, the rear connecting frame 79 is It is located above the upper support frame 69.

[0036] The door support frame 76 extends upward from the bottom of the right side of the cabin 7 and then tilts backward. The upper end of the door support frame 76 is connected to the roof frame. The door support frame 76 is connected to the rear of the cabin door 7c. Possibly supported.

[0037] The roof frame 77 constitutes the ceiling of the cabin 7. The roof frame 77 is a flat The front of the roof frame 77 is connected to the left and right front cabin frames 7 3 and 74. The roof frame 77 is covered with a roof 7d.

[0038] Next, a detailed description will be given of the mounting structure for mounting the cabin 7 to the driver's section 6. The cabin 7 is It is attached at five mounting points 81 to 85 located at the left front, right front, left rear, right rear, and right bottom. It can be attached.

[0039] The left front mounting portion 81 is attached to the left front portion of the cabin frame 70, specifically, to the front connecting frame. The mounting portion 81 is located at the left end of the front connecting frame 78 of the cabin frame 70. 8 and the left front column of the driver's section frame 60. and a lower bracket 812 provided on the side of the frame 613L.

[0040] 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 surfaces (a side surface 811a and a bottom surface 811b) that are perpendicular to each other. The upper bracket is a component formed so that the two surfaces form an L-shape when viewed from the front. The upper end of the side surface 811a of the mat 811 is connected to the lower part of the left protruding piece 78a. The bottom surface 811b of the socket 811 is formed with two through holes.

[0041] The lower bracket 812 is fixed to the left side surface of the left front column frame 613L. The lower bracket 812 is fastened to the left side surface of the left front column frame 613L with a bolt. The first bracket member 812a is connected to the upper part of the first bracket member 812a. The first bracket member 812a is L in plan view. The second bracket member 812b is supported from below. 812b is L-shaped in side view, and has two through holes formed on the top 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 is secured by inserting bolts 813 into the two through holes and fastening them with nuts 814. The lower bracket 811 can be attached to the lower bracket 812. The front connecting frame 78 of the frame 70 is connected to the left front column frame 6 of the driver's section frame 60. Can be attached to 13L.

[0042] A rectangular plate member 815 is disposed above the lower surface 811b of the upper bracket 811. Between the plate member 815 and the lower surface 811b of the upper bracket 811, a vibration-isolating plate is provided. This allows vibrations from the lower bracket 812 to be transmitted through the bolt 813. It is possible to prevent the heat from being transmitted to the upper bracket 811. Similarly, the lower surface 8 of the upper bracket 811 A vibration-isolating plate-shaped rubber is also disposed between 11b and the upper surface of second bracket member 812b. This prevents vibrations from the lower bracket 812 from being directly transmitted to the upper bracket 811. Although detailed explanation is omitted, such a vibration-proof support structure is provided in the front right, rear left, and rear right. It is also used in the mounting parts 82 to 85 on the right bottom.

[0043] Also, a second bracket member 812b of the lower bracket 812 is provided at the left front portion thereof. Bolt 816 is for attaching a work light to illuminate the intake port to feeder 24. is.

[0044] The right front mounting portion 82 is attached to the right front portion of the cabin frame 70, specifically, to the front connecting frame. The mounting portion 82 is located at the right end of the frame 78. The mounting portion 82 includes a mounting stay 821. 1 is a plate that is approximately Z-shaped in a plan view. a is attached to the right front column frame 613 of the driver's unit frame 60 by two bolts 822 More specifically, it is fixed to the left side of the right front column frame 613R. The front surface 8 of the mounting stay 821 is attached to a mounting plate 824 provided to protrude leftward from the On the other hand, the rear surface 821b of the Z-shaped mounting stay 821 is fixed by two bolts 8 23, which is fixed to the left side surface of the right front cabin frame 74 of the cabin frame 70. More specifically, the right front cabin frame 74 is provided with a left side surface protruding leftward. The rear surface 821b of the mounting stay 821 is fixed to the mounting plate 825. By the use of the -821, the right front cabin frame 74 of the cabin frame 70 is connected to the driver's frame It can be attached to the 60 right front column frame 613R.

[0045] The left rear mounting portion 83 is attached to the left rear portion of the cabin frame 70, specifically, to the rear connecting frame. The mounting portion 83 is located at the left end of the upper support frame 69 of the driver's section frame 60. The left bracket 831 (see FIG. 5) is provided at 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 on its top surface. On the other hand, two through holes are formed in the left end 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 By fastening the rear connecting frame 79 to the bolt holes of the left bracket 831, 831. This allows the rear connection of the cabin frame 70 The frame 79 can be attached to the upper support frame 69 of the driver's section frame 60 .

[0046] The right rear mounting portion 84 is attached to the right rear portion of the cabin frame 70, specifically, to the rear connecting frame. The mounting portion 84 is located at the right end of 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 on its top surface. On the other hand, two through holes are provided at the right end 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 By fastening the rear connecting frame 79 to the right bracket 841, This allows the rear connection of the cabin frame 70 to be mounted on the socket 841. The frame 79 can be attached to the upper support frame 69 of the driver's section frame 60 .

[0047] 5, a positioning pin protruding upward is provided on the upper surface of the right bracket 841. The positioning pin 843 is formed in the right bracket 841 described above. It is located behind the two bolt holes and between the two bolt holes when viewed from the rear. On the other hand, as shown in FIG. 6, a positioning pin 8 is provided at the right end of the rear connecting frame 79. The positioning pin 843 and the positioning hole 844 are formed corresponding to the positioning pin 843. By providing a positioning section consisting of 44, it is possible to first position the parts and then install them in the correct positions. The cabin 7 can be fixed in place, and the cabin 7 will not shift relative to the driver's section 6. Positioning the retaining pin 843 between the two bolt holes allows the two bolt holes to be aligned with the rear connecting frame. This makes it easier to align the two through holes formed in the arm 79 .

[0048] 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. The right step frame 62R of the driver's section frame 60 is formed with two bolt holes in the front-rear direction. The bolts 851 are inserted into the two through holes of the right bottom cabin frame 72, and the bolts By fastening the 851 bolt to the bolt holes on the right step frame 62R, the cabin frame The right bottom cabin frame 72 of the cab 70 is connected to the right step frame 62R of the driver's section frame 60. It can be attached to.

[0049] The above-mentioned mounting portions 81 to 85 securely mount the cabin frame 70 to the driver's section frame 60. The front column frame 61 and the rear frame part 65 The bin 7 can be firmly supported from the front, rear, left and right sides, and the cabin 7 can be attached to the driver's section 6 afterwards. Even if the vehicle is moved, the vibration of cabin 7 can be suppressed.

[0050] As shown in FIG. 9, with the cabin 7 attached to the driver's section 6, the front cover of the driver's section 6 is A sponge 6d is interposed between the ram 6c 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. d, the outer surface of the front column 6c and the inner surface of the front connecting frame 78 It can fill the gap between

[0051] In this embodiment, an example of a normal type combine harvester is shown, but the present invention is not limited to this. It may also be a combination.

[0052] The present invention is not limited to the above-described embodiment, and any other modifications may be made without departing from the spirit of the present invention. Various improvements and modifications are possible within the scope of the present invention.

[0053] [Note] As described above, the combine harvester according to this embodiment includes 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. 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 erected from the chassis frame and a second mounting portion attached to the vertical frames and to which the cabin can be attached.

[0054] In this embodiment, a threshing unit may be provided, and the second mounting portion may be connected to the threshing unit.

[0055] In this embodiment, an engine is provided below the driver's seat, and the rear frame portion has the plurality of vertical frames arranged behind the engine, a connecting portion connecting the upper parts of the plurality of vertical frames, an inclined portion extending upward from the rear of the connecting portion in an attitude inclined forward, and the second mounting portion provided on the upper part of the inclined portion, and the cabin may be attached to the second mounting portion while being placed on the upper part of the second mounting portion.

[0056] In the present embodiment, the rear frame portion and the cabin may be provided with a positioning portion that defines the position of the cabin relative to the rear frame portion.

[0057] In this embodiment, the second attachment portion may be provided with a protective cover that protects the front side of the muffler.

[0058] According to this embodiment, a combine harvester without a cabin can be retrofitted to include one with a cabin. Furthermore, the front column and multiple vertical frames provide firm support for the cabin from the front, rear, left, and right, suppressing cabin vibration even when a cabin is retrofitted. [Explanation of symbols]

[0059] 6. Driving 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

1. a driver's section including a driver's seat and a front column supporting an operating member in front of the driver's seat; a cabin covering the driver's section; a driver's section frame mounted on the chassis frame; and The driver's section frame is a front column frame that forms the framework of the front column; 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.

2. The combine harvester of claim 1 , wherein the bottom cabin frame is in contact with the step frame.

3. The combine harvester of claim 1 , wherein the bottom cabin frame is connected to the step frame.

4. The combine harvester according to any one of claims 1 to 3, wherein a cabin door is provided on a right side surface of the cabin frame.

5. The combine harvester according to any one of claims 1 to 4, wherein a front connecting frame that connects front portions of the cabin frames is supported by the front column frame.

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