JP2008072920A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent dust from flowing into a driving cabin when opening and closing a cabin door of a combine harvester. <P>SOLUTION: The combine harvester is equipped with the door 25 installed in the side face of the driving cabin 10 so as to be freely opened and closed, an air conditioner 30 used for conditioning the air inside the driving cabin 10, and an opening 41 for the intake of air into outdoor equipment 31 of the air conditioner 30, arranged at the side face of the driving cabin 10 in which the door 25 is installed. A cover member 50 having a rectifying body for allowing the air to flow in from the direction different from the side in which the door 25 is installed to the opening 41 is also installed in the combine harvester. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a combine.

Some large combines have a driving cabin that surrounds the driver's seat, and some combines that have a driving cabin have air conditioning equipment (hereinafter referred to as air conditioners) for air conditioning in the driving cabin. There is. Some combiners equipped with an air conditioner are provided with an air intake section for blowing air to an outdoor unit such as a condenser of an air conditioner in or around the operation cabin.
Japanese Patent Laying-Open No. 2005-143412

  By the way, in a combine equipped with an air conditioner, dust such as dust may accumulate in an air intake portion to the outdoor unit of the air conditioner. In particular, combine harvesting, grain threshing, sorting, and waste disposal are performed, so dust such as sawdust is easily generated around the combine and dust tends to accumulate in the air intake section of the air conditioner. .

  When the door of the operation cabin is opened and closed in a state where dust has accumulated in the air intake portion, the dust collected in the air intake portion easily flows into the operation cabin due to the flow of wind generated when the door is opened and closed. In particular, when air is not flowing into the air intake, such as when the engine is stopped or when the air conditioner is stopped, dust is likely to scatter, and dust tends to flow into the driving cabin when the door is opened or closed. .

  This invention is made in view of such a problem, and makes it a subject to provide the combine in which the inflow of the dust into the driving | running cabin at the time of door opening and closing was prevented.

  The present invention includes a driving cabin, a door that can be opened and closed on a side surface of the driving cabin, an air conditioner that is used for air conditioning in the driving cabin, and the door. In a combine in which an air intake unit to the outdoor unit of the air conditioner is arranged on the side of the operating cabin, the rectifier that allows air to flow in from a direction different from the side where the door is installed in the intake unit It is characterized by having installed.

  The door is pivotally supported at a position on the front side of the door, the intake portion is disposed behind the door, and the rectifier is located behind the intake portion. The combine which makes air flow in from may be sufficient.

  In addition, a cover member that covers the capture portion is installed outside the capture portion, and the rectifier is formed on the cover member, and the cover member is a closed cover that covers the capture portion. A combine that is freely rotatable between a position and an open position separated from the take-in portion may be used.

  The invention according to claim 1 is provided with a driving cabin, a door installed on the side of the driving cabin so as to be opened and closed, an air conditioner used for air conditioning in the driving cabin, and the door In the combine where the air intake unit to the outdoor unit of the air conditioner is arranged on the side of the installed operating cabin, a rectifier that allows air to flow in from a direction different from the side where the door is installed in the intake unit It is a combine characterized by the installation.

  In this way, when a rectifier that allows air to flow in from a direction different from the side where the door of the operating cabin is installed is directed toward the air intake part to the outdoor unit, the door side is directed toward the intake part. Thus, the air is prevented from flowing, and the air is also prevented from flowing in the opposite direction, that is, from the intake portion toward the door. If air flow from the intake to the door is prevented, even if dust accumulates in the intake, dust collected in the intake will flow into the operating cabin when the door of the operating cabin opens and closes It is prevented.

  In the invention according to claim 2, the door is pivotally supported so as to be rotatable at a position on the front side of the door, the intake portion is disposed behind the door, and the rectifier is Air is allowed to flow into the part from the rear.

  As described above, when air is caused to flow into the intake portion from the rear to the intake portion, air is prevented from flowing from the door side arranged in front of the intake portion toward the intake portion. Inflow of air from the intake portion to the door side is prevented. Therefore, even if dust has accumulated in the intake portion, dust accumulated in the intake portion is prevented from flowing into the operation cabin when the door of the operation cabin is opened and closed.

  In the invention according to claim 3, a cover member that covers the take-in part is further provided outside the take-in part, and a rectifier is formed in the cover member. It is possible to rotate between a closed position that covers the part and an open position that is separated from the take-in part.

  Thus, when the cover member that covers the intake portion is installed, the intake portion and the door are blocked by the cover member, and the cover member may cause an air flow from the intake portion to the door side. Is prevented. In addition, by forming a rectifying body on the cover member, it is possible to more reliably prevent air from flowing from the intake section to the door side, and dust accumulated in the intake section when the door of the operation cabin is opened and closed Inflow is prevented.

  Hereinafter, embodiments of a combine according to the present invention will be described in detail with reference to the drawings.

  As shown in FIGS. 1 and 2, the combine A is movable up and down to a pair of left and right crawler type traveling units 1, a vehicle body frame 2 provided on the traveling unit 1, and a left front end portion of the vehicle body frame 2. The attached mowing unit 4 and the transport unit 5, the threshing unit 7 and the sorting unit 8 disposed at the rear of the transport unit 5, the rejection processing unit 9 disposed at the rear part on the body frame 2, and the vehicle body An operating cabin (hereinafter referred to as a cabin) 10 disposed on the right front portion on the frame 2, a grain storage portion 11 disposed on the right middle portion on the vehicle body frame 2, and an auger 12 for carrying out the grains It has.

  In such a combine A, the cereals harvested by the mowing unit 4 are conveyed by the conveying unit 5 to the rear upper threshing unit 7, where they are threshed. The threshed grain is sorted by the sorting unit 8, and only the refined grain is conveyed to the grain storage unit 11 and stored. The stored granule is carried out via the auger 12 as necessary. Further, the threshed cereal is transported to the slaughter processing unit 9 as scum, and is shredded and discharged by the slaughter processing unit 9.

  As shown in the figure, the cabin 10 has a substantially cubic box shape, and an operation unit (not shown) is arranged inside. The driving unit includes a steering column erected on the front portion of the cabin floor, a steering handle attached to the upper end of the steering column, a driver seat disposed behind the steering handle, and a left side of the driver seat. This is a normal driving unit including a side panel on which a main transmission lever and the like disposed at is installed, and detailed description thereof is omitted here.

  As shown in FIG. 1 and FIG. 2, the cabin 10 includes a windshield 21 on the front surface thereof to ensure a front view. As shown in FIG. 1, an opening / closing window 22 is provided at the upper part of the left side of the cabin 10, a transparent acrylic blocking window 23 is attached at the middle position, and an opening / closing lid 24 is attached to the lower part. It is attached freely. As described above, the left view is ensured by providing the opening / closing window 22 and the closing window 23, and ventilation is possible by providing the opening / closing window 22.

  As shown in FIGS. 2 and 3, a door 25 for getting on and off is installed on the right side surface of the cabin 10 so as to be openable and closable.

  As shown in FIG. 3, the door 25 is pivotally supported by the main body of the cabin 10 via a hinge 26 on the front side thereof. The pivot axis direction is the vertical direction, and the door 25 can be opened and closed while pivoting in the lateral direction perpendicular to the pivot axis. As shown in FIG. 4A, the door 25 is of a so-called outward opening type. When the door 25 is opened, the door 25 is directed from the closed position indicated by the solid line to the position indicated by the two-dot chain line. Then, the door 25 is rotated outside the cabin. When closing the door 25, the opened door is rotated to the closed position indicated by the solid line.

  A handle 27 used to open and close the door 25 is attached to the rear side of the outer surface of the door 25. The height position of the handle 27 is a height position where an operator's hand in the state where it has stood up at the step 28 for getting on and off installed below the cabin 10 can be reached.

  Therefore, when getting into the cabin 10, the operator first goes up to the step 28 for getting on and off, grasps the door handle 27, and opens the door 25 outward. Then, with the door 25 opened, the step 28 for getting on and off is further raised and the passenger enters the cabin 10. Thereafter, the door 25 that has been opened to the outside is closed. Further, when getting out of the cabin 10, the door 25 is first opened outward, and after going down the boarding step 28, the handle 27 outside the door 25 is grasped, and the door 25 opened outside is closed.

  Further, the combine A of the present embodiment includes an air conditioner (hereinafter referred to as an air conditioner) 30 for performing air conditioning such as cooling and heating in the cabin 10. The air conditioner 30 includes an outdoor unit 31 for exchanging heat between the outside air and the refrigerant, an indoor unit 32 for exchanging heat between the air in the cabin and the refrigerant, and between the outdoor unit 31 and the indoor unit 32. A refrigerant circulation path for circulating the refrigerant, and a well-known one including a duct 33 and a blower opening 34 for blowing the air-conditioning air obtained by heat exchange in the indoor unit into the cabin 10, are not described in detail here. To do.

  As shown in FIG. 5, the outdoor unit 31 of the air conditioner is disposed on the back surface of the cabin 10. The outdoor unit 31 includes a heat exchanger (not shown) and a fan 31a for sending air to the heat exchanger. An air intake unit 40 is provided on the right side surface of the cabin 10 for taking in air to be blown into the heat exchanger. The air taken in from the air take-in section 40 flows into a heat exchanger of the outdoor unit 31 through a duct (not shown), and is released to the outside of the outdoor unit 31 by the fan 31a.

  As shown in FIG. 5, the air intake section 40 includes openings (three places in the present embodiment) 41 formed on the right side surface of the cabin 10, and a net 42 is attached to the opening 41. .

  A cover member 50 for covering the opening 41 from the outside is disposed outside the opening 41.

  As shown in FIG. 4A, the cover member 50 is disposed on the front side of the cover body 51 and the cover body 51 located outside the opening 41, and is formed integrally with the cover body 51. And a front portion 52. As shown in FIGS. 3 and 4B, the cover main body 51 and the cover front portion 52 are both plate-like members having a vertically long rectangular shape, and the cover front portion 52 is a cabin with respect to the cover main body 51. It is integrally formed in a state bent to the 10 side. That is, the cover member 50 is bent at the connecting portion between the cover main body 51 and the cover front portion 52.

  The front edge of the cover front portion 52 is located in front of the position of the opening 41 and in a position behind the position of the door 25. That is, the front edge of the cover member 50 is located at a position between the opening 41 and the door 25. The cover member 50 is rotatably attached to the right side surface of the cabin 10 via a hinge 59 at the front edge position of the cover front portion 52. Thus, the cover member 50 is rotatably attached to the cabin 10 at its front edge.

  The cover member 50 is attached in a state in which the rotation axis thereof is directed in the vertical direction, and can be rotated in the horizontal direction. The cover member 50 is rotatable between a closed position that covers the opening 41 (see FIG. 3) and an open position that is away from the opening 41 (see FIG. 5). The cover body 51 of the cover member 50 is separated from the right side surface of the cabin 10 and is parallel to the right side surface of the cabin 10 even when the cover member 50 is in the closed position. In the state where the cover member 50 is located at the open position, the cover main body 51 is in a state in which the rear edge faces obliquely rearward.

  As shown in FIG. 4B, a through hole 53 for ventilation is formed in the cover main body 51 and the cover front portion 52 of the cover member 50. The through-hole 53 penetrates the front and back of the cover member 50 and has a vertically long elongated hole shape extending in the vertical direction, and is formed in a large number in the cover main body 51 and the cover front portion 52. A rectifier 54 that guides the flow direction of the air passing through the through hole 53 is formed at the periphery of the through hole 53, more specifically, at the position of the opening edge near the front of the through hole 53.

  As shown in FIG. 6, the rectifying body 54 includes a protrusion 55 protruding outward from the cover member 50. When the protrusion 55 is provided, the inflow of air from the front side of the through hole 53 toward the through hole 53 is prevented. At the same time, the air released to the outside from the through hole 53 is prevented from flowing to the front side (door 25 side) of the through hole 53. Further, the rectifying body 54 includes a rectifying surface 56 for guiding the air flow inside thereof. That is, the rectifying surface 56 is directed to the right side surface of the cabin 10 in which the air intake opening 41 is formed. The rectifying surface 56 extends outward from the right side surface of the cabin 10 from the front side toward the rear side. Therefore, when air is released from the inside to the outside of the through-hole 53, the released air is released toward the rear of the through-hole 53, and is not released to the door 25 located on the front side. Yes.

  As shown in FIG. 4, a partition plate 61 extending in the vertical direction is provided on the right side surface of the cabin 10 and behind the air intake opening 41. The partition plate 61 is a plate-like member protruding rightward from the right side surface of the cabin 10 and has a height that makes contact with the rear edge of the cover member 50 located at the closed position (FIG. 4A). reference). Note that an engaging member 62 for holding the cover member 50 rotated to the closed position in the closed position is attached to the partition plate 61. Therefore, the cover member 50 rotated to the closed position can be reliably fixed to the closed position.

  As shown in FIG. 4A, a rod body 70 extending in the vertical direction is attached to the right side surface of the cabin 10 and between the cover member 50 and the door 25. The rod body 70 is disposed at a position separated from the right side surface of the cabin 10, and is fixed to the right side surface of the cabin 10 at bent portions provided at the upper end portion 70a and the lower end portion 70b thereof. With this rod 70, when the cover member 50 is rotated in the opening direction, the cover member 50 hits the rod 70 and cannot be further rotated in the opening direction. If the rotation range of the cover member 50 is not limited, when the cover member 50 is rotated in the opening direction, the cover member 50 may rotate to a position where it contacts the door 25, and the door 25 is opened. The door 25 may collide with the cover member 50. In this regard, if the rod body 70 is installed, the rotation range of the cover member 50 is limited, and the contact between the cover member 50 and the door 25 is reliably prevented.

  Next, the opening / closing operation | movement of the door 25 of the cabin 10 of the combine A is demonstrated.

  Here, the description starts from a state in which the door 25 of the cabin 10 is closed and the cover member 50 is fixed at the closed position.

  When boarding / exiting the cabin 10 with the door 25 closed, the operator opens the door 25 in the closed state. At this time, there may occur a phenomenon in which the cabin 10 instantaneously becomes negative pressure. In this case, air passes from the outside of the cabin 10 into the cabin 10 through the gap between the door frame of the cabin 10 and the door 25. Occurs.

  When such a phenomenon occurs, as indicated by a two-dot chain line in FIG. 4A, the door 25 of the cabin 10 is opened rearward. Air behind 25 flows in.

  However, as shown in FIG. 3, in the combine A of the present embodiment, a cover member 50 that covers the opening 41 on the right side surface of the cabin 10 from the outside is installed. Therefore, the air outside the cover member 50 flows into the cabin 10. Thus, in the combine A of this embodiment, since the cover member 50 is provided, the air near the opening 41 on the right side surface of the cabin 10 is prevented from flowing into the cabin 10. Therefore, even if dust accumulates in the opening 41, the dust is prevented from flowing into the cabin 10.

  The cover member 50 is formed with a through hole 53 so that air outside the cover member 50 can be taken in from the opening 41 on the right side surface of the cabin 10 even when the cover member 50 is closed. A protrusion 55 is formed on the front edge of the hole 53 (that is, the edge on the door 25 side) (see FIG. 6). Providing this projection 55 makes it difficult for air between the opening 41 and the cover member 50 to flow into the cabin 10, and when the door 25 of the cabin 10 is opened, the air between the opening 41 and the cover member 50 Inhalation into the cabin 10 is prevented.

  Further, at the position of the through hole 53 of the cover member 50, a rectifying surface 56 is formed which is directed to the right side surface of the cabin 10 and extends outwardly from the front side to the rear side so as to be separated from the right side surface of the cabin 10. (See FIG. 6). Therefore, even if there is a flow of air that sucks the air between the opening 41 and the cover member 50 to the outside through the through hole 53, the sucked air remains on the rectifying surface 56 that is directed rearward. It is discharged toward the rear of the through-hole 53 by the guide, and it is difficult for it to flow toward the door 25 located in the front. Therefore, even if dust accumulates in the portion of the opening 41 and the dust is sucked out, the dust is prevented from being sucked into the cabin 10.

  Next, the cover member 50 will be described.

  The cover member 50 is fixed at the closed position (see FIG. 3) in a normal state such as when the combine A is operated. However, as described above, the cover member 50 is pivotally supported between a closed position and an open position (see FIG. 5). Then, by rotating the cover member 50 to the open position, the dust accumulated in the opening 41 portion on the right side surface of the cabin 10 can be easily removed, and the dust adhering to the inner surface of the cover member 50 can be removed. Can also be removed easily.

  A rod body 70 is installed on the front side of the cover member 50, and the rotation range of the cover member 50 is limited by the rod body 70. If the rotation range of the cover member 50 is limited in this way, the interference between the cover member 50 in the opened state and the door 25 is reliably prevented.

  Moreover, the structure of the combine which concerns on this invention is not restricted to the thing of the said embodiment, A various change is possible in the range of the meaning of invention.

  As shown in FIG. 6, the rectifying body 54 in the above embodiment includes a protruding portion 55 that protrudes to the outside of the cover member 50, and a rectifying surface 56 that guides the air flow formed inside. However, it may be provided with only one of them.

  Further, the upper and lower ends of the partition plate 61 formed behind the opening 41 may be provided with an upper end portion and a lower end portion of the partition plate that are bent forward in the horizontal direction. When such a portion is provided, when the cover member 50 is rotated to the closed position (see FIG. 3), the space between the right side surface of the cabin 10 and the cover member 50 is located at the closed position. And is surrounded by the partition plate 61. If such a state can be achieved, it becomes difficult for air to enter and exit between the enclosed space and the outside of the cover member 50. Therefore, even if a negative pressure is generated outside the cover member 50, the air between the opening and the cover member is hardly sucked out to the outside of the cover member. If it becomes difficult for air to be sucked out, even if pride is accumulated near the opening, it is difficult for the dust to be sucked, and the inflow of dust into the cabin 10 is prevented.

It is a left view which shows the combine of this embodiment. It is a right view which shows the combine of this embodiment. It is a right view which expands and shows the cabin part in the state where the cover member is located in a closed position. (A) is a top view which expands and shows the right side surface of a cabin, (b) is a right side view which expands and shows the cabin part in the state in which the cover member is located in an open position. It is the perspective view seen from the right rear which expands and shows the cabin part in the state where the cover member is located in the open position. (A) is a top view which expands and shows a cover member, (b) is a side view which expands and shows a part of cover member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Traveling part 2 Body frame 4 Cutting part 5 Conveying part 7 Threshing part 8 Sorting part 9 Exclusion processing part
10 Driving cabin (cabin)
21 Windshield
22 Open / close windows
23 Blocking window
24 Opening / closing lid
25 door
30 Air conditioner
31 Outdoor unit
40 Air intake
41 opening
50 Cover member
51 Cover body
52 Front cover
53 Through hole
54 Rectifier
55 Protrusion
56 Rectifying surface
61 Partition
62 Engagement member
70 rod

Claims (3)

The driving cabin has a door that can be opened and closed on the side of the driving cabin, and has an air conditioner that is used for air conditioning in the driving cabin, and the side of the driving cabin on which the door is installed In the combine where the air intake unit to the outdoor unit of the air conditioner is arranged,
The combine which installed the rectifier which flows in air from the direction different from the side in which the said door is installed in the said intake part. The door is pivotally supported so as to be rotatable at a position on the front side of the door,
The intake portion is disposed behind the door,
The combine according to claim 1, wherein the rectifier allows air to flow into the intake part from the rear. A cover member that covers the take-in part is installed outside the take-in part, and the rectifier is formed in the cover member,
3. The combine according to claim 1, wherein the cover member is rotatable between a closed position that covers the capturing portion and an open position that is spaced apart from the capturing portion.

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