JP6707620B1 - Harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the support structure of the side cover and reduce the cost while avoiding catching and damage of uncut crops on the outer side portion of the side cover. Was there. SOLUTION: The threshing device 4 and the grain storage device 5 are provided in a state of being aligned in the left-right direction, and a side cover 30 is provided to cover a lateral side portion of the threshing device 4 on the outer side in the left-right direction. , An upper cover portion 31 located on the upper side and a lower cover portion 32 located on the lower side, and at the boundary K between the upper cover portion 31 and the lower cover portion 32, the lower cover portion 32. A linear recess Q that is linearly recessed along the boundary along the front and rear is formed at the upper end of the, and a fixing member 37 for attaching and fixing the side cover 30 to the lateral side in the linear recess Q. Is stored. [Selection diagram] Figure 1

Description

The present invention relates to a harvester, and more particularly, to a harvester provided with a threshing device biased to one side in the left-right direction.

The harvester is provided with the threshing device biased to one side in the left-right direction, and the lateral side portion on the outer side in the left-right direction of the threshing device is located at a position facing the outer side in the machine width direction, and threshing is performed. The lateral side portion on the outer side in the left-right direction of the device is covered with a side cover. In a combine harvester as an example of a harvester, conventionally, the side cover is composed of a plurality of divided cover bodies, and each cover body has a surface on the outer side in the left-right direction that is smooth along the front-rear direction. It was provided in a shape that is continuous with. Note that each cover body is separately held in position by an elastic engagement type lock mechanism that automatically engages with a locked member provided on the threshing device main body side as the cover body is moved toward the closed position. It was configured (for example, refer to Patent Document 1). With this configuration, the side cover has a structure in which the outer surface in the left-right direction is smoothly continuous along the front-rear direction, so that even if uncut crops being planted come into contact with the side cover during the cutting operation. , There is little risk that uncut crops will be caught and damaged.

JP, 2017-212949, A

In the above-described conventional configuration, the surface on the outer side in the left-right direction is smoothly continuous along the front-rear direction, and in order to hold the position in a state in which no protrusion to the outer side occurs, a complicated structure is required for each of the plurality of cover bodies. Since the lock mechanism of the structure must be provided, the supporting structure is complicated and there is a disadvantage in that the cost is increased.

Therefore, it is desired that the support structure of the side cover can be simplified and the cost can be reduced while avoiding the damage and damage of uncut crops on the outer side portion of the side cover. It was

The characteristic configuration of the harvester according to the present invention is provided with a mowing unit located at the front of the machine body, and a feeder that conveys the grain culms pruned by the mowing unit, and the corn grain culms transported by the feeder are A threshing device for threshing and a grain storage device for storing grains obtained by the threshing process are provided in a state of being aligned in the left-right direction, and a side that covers the lateral side portion on the outer side in the left-right direction of the threshing device. cover is provided, the side cover is located on the upper side, an upper cover portion that will be removably supported on the lateral sides, are dividedly formed on a lower cover portion located on the lower side, and the top cover At a boundary between the lower cover portion and the lower cover portion, and on either or both of a lower end portion of the upper cover portion and an upper end portion of the lower cover portion, a front end portion and a rear end portion of the side cover. And a linear recess that is linearly recessed along the boundary is formed, and a fixture for mounting and fixing the side cover to the lateral side is housed in the linear recess. In the place where the fixture is mounted in, a recessed portion that is recessed from the recessed side bottom portion of the linear recessed portion inward in the left-right direction is formed, and the front portion of the upper cover portion is seen in a side view. The feeder extends to a lower side of the transport terminal end portion to cover the lateral side of the transport terminal end portion, and the lower portion of the upper cover portion is inclined downward to the front in a side view and is a lower surface of the transport terminal end portion. Is extended to the lower side so as to be located at a lower position than that, and is located on the inner surface of the lower portion of the upper cover portion on the side of the lateral portion, the front locking portion located on the front side and the rear locking portion. A rear locking portion is provided, and when the upper cover portion is supported by the lateral side portion, the front locking portion and the rear locking portion are locked by the lateral side member. The vertical separation distance of the front locking portion from the lower portion of the upper cover portion is such that the front locking portion and the rear locking portion are at the same height position with respect to the lateral side portion. A horizontal wall portion that is set to be larger than a vertical distance of the rear locking portion with respect to a lower portion of the upper cover portion and covers the lateral side portion in the upper cover portion; A front wall portion extending to the lateral side portion side; and a rear wall portion extending from the rear end portion of the lateral wall portion to the lateral side portion side, wherein the front locking portion is the upper portion. Extending from the inner surface of the front corner portion of the front wall portion and the lateral wall portion of the cover portion, and the rear locking portion, the rear wall portion and the lateral wall portion of the upper cover portion It is located at a point that is extended from the inner surface of the rear corner .

According to the present invention, in the side cover, a linear concave portion is formed in the front-rear direction at the boundary portion between the upper cover portion and the lower cover portion that are vertically divided, and the fixture is provided in the linear concave portion. It is stored. As a result, the outer surface of the side cover can be used as the fixture even if an inexpensive fixture having a simple structure, such as a knob bolt and the like, can be easily attached and detached. There is no sticking out of the fixtures, and there is little risk of uncut crops getting caught.

Therefore, it is possible to reduce the cost by simplifying the support structure of the side cover while avoiding the damage and damage of uncut crops on the outer side portion of the side cover. It was
Further, according to this configuration, when the front portion of the upper cover portion is removed, the conveyance end portion of the feeder is opened, and maintenance work can be easily performed.

In the present invention, a protruding portion that protrudes outward in the left-right direction is formed in a portion of the linear recess that is located between the front-side fixing member and the rear-side fixing member in the recessed-side bottom portion. A recessed space is formed on the inner side of the protrusion in the left-right direction, and a transmission mechanism for transmitting power in the recessed space is provided on the inner side of the side cover in the left-right direction. It is suitable.

According to this configuration, the protruding portion that protrudes outward from the recessed-side bottom portion is formed in the front-rear halfway portion of the linear recessed portion. Then, by effectively utilizing the recessed space formed on the inner side in the left-right direction of the protruding portion, the power transmission mechanism for power transmission is provided in a state of entering.

As a result, while avoiding the risk of interference between the side cover and the transmission mechanism, the side cover can be moved as close to the inside of the threshing device as possible to make the entire machine compact.

In the present invention, it is preferable that the outer surface of the upper cover portion and the outer surface of the lower cover portion have substantially the same distance from the lateral side portion in the left-right direction.

According to this configuration, since the outer surface of the upper cover portion and the outer surface of the lower cover portion are substantially at the same position in the left-right direction, for example, when tall uncut crops are guided by sliding contact with the side cover. However, even if the stems are not bent, it is possible to guide them satisfactorily in a straight standing posture.

In the present invention, the front lower edge of the lower cover part is formed in a front rising slope shape in a side view, and the front part of the boundary part is formed in a front falling slope shape in a side view, A front end portion of the lower cover portion is formed in a tapered shape in a side view, and a reinforcing member is provided in an inner portion of a portion of the lower front edge portion of the lower cover portion where the lateral wall portion and the front wall portion are continuous. Is suitable.

According to this configuration, when an uncut crop that is being planted contacts the lower cover portion, the uncut crop is guided rearward while sliding on the lower cover portion. At this time, since the front lower edge of the lower cover portion is formed in a curved shape, it is possible to smoothly slide and guide the uncut crop without damaging it.

In the present invention, it is preferable that a lower recessed portion that is recessed inward in the left-right direction is formed at a rear lower portion of the lower cover portion.

According to this configuration, even if the uncovered crop is guided by the lower cover portion in the state of being laid down outward in the left-right direction, if it is guided to the rear side of the lower cover portion, The uncut crop is guided inward in the left-right direction along the lower recessed portion, and can be returned to the standing posture.

In the present invention, it is preferable that the lower recessed portion is continuous from the lower end portion of the front end edge of the lower cover portion toward the rear side and is wider toward the rear side in a state where the upper end edge is in a rearward rising posture. Is.

According to this configuration, the uncut crop can be slidably guided so as to smoothly and gradually return to the standing posture by the lower concave portion of the rearward rising posture.

It is the whole left side view of a combine. It is a whole top view of a combine. It is the whole right side view of a combine. It is a side view of a side cover. It is a vertical section front view of a side cover. It is a perspective view of a 1st cover body. It is a perspective view of a 1st cover body. It is a perspective view of a 3rd cover body. It is a perspective view of a 3rd cover body. It is a perspective view of a 4th cover body. It is a perspective view of a 4th cover body. It is a perspective view of a 2nd cover body. It is a perspective view of a 2nd cover body. It is a perspective view of an upper transmission part cover.

Hereinafter, a case where the embodiment according to the present invention is applied to an ordinary combine as an example of a combine will be described with reference to the drawings.

〔overall structure〕
As shown in FIGS. 1, 2, and 3, the ordinary combine harvester is provided with a driving unit 3 on the front right side of a traveling machine body 2 including a pair of left and right crawler traveling devices 1 and threshing a harvested crop. The apparatus 4 and the grain storage part 5 as a grain storage device which stores the grain obtained by the threshing process are provided. The grain storage part 5 is provided in a state of being located on the rear side of the operating part 3, the grain storage part 5 is located on the right side of the machine body, and the threshing device 4 is located on the left side of the machine body. The threshing device 4 is placed and supported on the machine body frame 6 side by side along the machine body lateral width direction. An engine 7 is provided below the driving unit 3. The driver 3 is provided with a canopy 9 that covers the upper part of the driver's seat 8.

In this embodiment, when defining the anteroposterior direction of the machine body, it is defined along the machine body traveling direction in the working state, and when defining the left and right direction of the machine body, the left side and the right side are defined in a state viewed in the machine body traveling direction view. .. That is, the direction indicated by reference numeral (F) in FIGS. 1 and 2 is the front side of the machine body, and the direction indicated by reference numeral (B) in FIGS. 1 and 2 is the rear side of the machine body. The direction indicated by the symbol (L) in FIG. 2 is the left side of the machine body, and the direction indicated by the symbol (R) in FIG. 2 is the right side of the machine body.

A feeder 10 that conveys the mowing culm to the rear in a vertically swingable manner around a horizontal axis X is connected to the front part of the threshing device 4, and a mowing part having a mowing width approximately equivalent to the lateral width of the machine is provided at the front end of the feeder 10. 11 are connected. The mowing unit 11 includes a rotary reel 12 that scrapes the planted culm backward, a clipper-type cutting blade 13 that cuts and cuts the root of the planted culm, and the cultivated grain culm to the lateral side in the lateral direction of the machine body. The auger 14 for feeding is provided, and the grain culms cut by the cutting blade 13 are laterally fed by the auger 14 and supplied to the feeder 10.

[Transmission structure to the reaper]
As shown in FIG. 1, the power of the engine 7 provided below the driving unit 3 is transmitted to the left end of the machine body through the counter shaft 15. Then, it is transmitted from the pulley 15a provided on the counter shaft 15 to the pulley 17a provided on the handling barrel relay shaft 17 via the transmission belt 16 as a transmission mechanism for power transmission. It is transmitted from the handling barrel relay shaft 17 via another transmission belt 18 to a pulley 19a provided on the reaping input shaft 19 located on the swing axis X. Further, it is transmitted to the reaper transmission unit provided on the right side of the reaper 11 via the endless rotation chain 20 and the driven shaft 21 provided in the feeder 10. Although not shown, the mowing transmission unit transmits power to each of the rotary reel 12, the cutting blade 13, and the auger 14.

As shown in FIG. 3, an upper transmission cover 23 that covers the right outer side of the transmission mechanism for the rotary reel 12 of the cutting transmission, and a lower transmission cover 24 that covers the transmission mechanism for the auger 14 and the cutting blade 13. And are provided. The upper transmission section cover 23 and the lower transmission section cover 24 are each made of a synthetic resin material. The upper transmission part cover 23 is fixed by bolting two side surfaces in a state where a plurality of upper edge parts are locked by locking parts (not shown). Similarly, the lower transmission section cover 24 is also fixed by bolting two side surfaces to each other.

As shown in FIGS. 1 and 14, a recessed portion 25 that is recessed in a circular shape is formed at the bolt mounting portion of the upper transmission portion cover 23 so as to cover the outer peripheral side of the bolt Bo. On the lower side of the side surface, a large recess 60 extending from the lower front portion to the rear end portion is formed. That is, an inclined surface 23B that gradually enters inward in the left-right direction from an upper surface 23A that is vertically flat among the side surfaces is formed, and a vertically flat bottom surface 23C is formed below the inclined surface 23B. Has been done. A large recess 60 is formed by the inclined surface 23B and the bottom surface 23C. The recessed portion 60 extends obliquely rearwardly upward from a lower portion of the front surface of the side surface, and then extends substantially horizontally to the rear end portion of the side surface in a continuous state. As described above, since the recessed portion 25 is formed at the bolt mounting position, the head of the bolt Bo is prevented from protruding laterally outward, and there is little risk of uncut crops being caught.

As shown in FIG. 3, a recessed groove 24a that extends along the front-rear direction and has a narrow width in the up-down direction is formed in the central portion of the side surface of the lower transmission cover 24. By thus forming the elongated recessed groove 24a in the front-rear direction, strength is reinforced.

[Thrusher]
Although not shown, the threshing device 4 has a handling cylinder and a net inside, and forms a handling room for handling the harvested culm conveyed from the feeder 10. Further, at the lower part of the handling room, there is provided a sorting processing unit for sorting the treated material leaking from the receiving net into grain, second rice such as rice with branches, and waste straw waste.

The grains selected by the selection processing unit are discharged to the outside on the lateral side of the grain storage unit 5 side of the threshing device 4 by a first object recovery screw (not shown). A threshing device 26 including a screw conveyor is provided laterally outside the side wall of the threshing device 4 on the grain storage section 5 side. The grains discharged laterally outward on the grain storage part 5 side of the threshing device 4 are conveyed upward by the fried device 26 and stored in the grain storage part 5. The second product obtained in the sorting section is returned to the front side portion of the threshing device 4, and the waste straws and the like are discharged from the rear side of the threshing device 4 to the outside.

The grain storage unit 5 has a storage space for storing the grains that have undergone threshing processing, and includes a storage hopper 27 that can discharge the grains below the storage space, and a storage hopper 27 is provided below the storage hopper 27. A collection unit (not shown) is provided for collecting the grains in the collection bag.

[Side cover]
On the left side of the traveling machine body 2, a side cover 30 that covers the left side wall portion 4A as the left side portion of the threshing device 4 is provided.
As shown in FIGS. 1 and 4, the side cover 30 is vertically divided into an upper cover portion 31 located on the upper side and a lower cover portion 32 located on the lower side. Further, the upper cover 31 is divided into a front side upper cover body 33 (hereinafter referred to as a first cover body) and a rear side upper cover body 34 (hereinafter referred to as a second cover body). The first cover body 33 corresponds to the front portion of the upper cover portion 31 and is made of a synthetic resin material. On the other hand, the second cover body 34 corresponds to the rear portion of the upper cover portion 31 and is made of a sheet metal material.

The lower cover part 32 is divided into front and rear parts into a front side lower cover body 35 (hereinafter referred to as a third cover body) and a rear side lower cover body 36 (hereinafter referred to as a fourth cover body). The third cover body 35 and the fourth cover body 36 are each made of a synthetic resin material.

As shown in FIG. 5, the outer surface of the upper cover portion 31 and the outer surface of the lower cover portion 32 have substantially the same distance in the left-right direction from the left side wall portion 4A of the threshing device 4. Therefore, since the outer surface of the upper cover portion 31 and the outer surface of the lower cover portion 32 are substantially at the same position in the left-right direction, the outer surface of the side cover 30 forms a vertically oriented surface that is smoothly continuous in the up-down direction. ing. As a result, the uncut crop can be reasonably guided in the standing posture without bending the stems.

At the boundary portion K between the upper cover portion 31 and the lower cover portion 32, a linear recess is made inward in the left-right direction along the boundary portion K in the front and rear from the front end portion to the rear end portion. A linear concave portion Q is formed.

Of the boundary portion K between the upper cover portion 31 and the lower cover portion 32, the front portion, that is, the boundary portion K between the first cover body 33 and the third cover body 35 is formed in a front-down inclined posture in a side view. Has been done. Then, the first cover body 33 covers the lateral side of the feeding end portion of the feeder 10 in a state of extending to a lower side portion of the feeding end portion of the feeder 10 in a side view. The second cover body 34 covers the lateral outer side of the handling chamber of the threshing device 4.

At the boundary portion K between the upper cover portion 31 and the lower cover portion 32, a linear concave portion Q that is linearly recessed along the boundary portion K is formed at the upper end of the lower cover portion 32. ing. A knob bolt 37 as a fixture for fixing the side cover 30 to the left side wall 4A of the threshing device 4 is housed in the linear recess Q.

The configuration of each cover body 33, 34, 35, 36 will be described below.

[First cover body]
As shown in FIGS. 1, 4, 6, and 7, the first cover body 33 extends in a lateral posture in a state in which it is continuous with the lateral wall portion 33A that covers the left outer side of the conveyance terminal end portion of the feeder 10 and the lateral wall portion 33A. The threshing device 4 includes a front wall portion 33B that covers the upper front of the left side wall portion 4A and a rear wall portion 33E . A plurality of reinforcing ribs 33C are provided inside the portion where the lateral wall portion 33A and the front wall portion 33B are continuous. In the first cover body 33, the lower end edge of the lateral wall portion 33A is formed in a rearwardly inclined posture in which the front end portion is located at the lowest position and is located higher toward the rear side.

The first cover body 33 is provided with locking portions 33D at both front and rear positions of the inner lower portion, and the locking portions 33D on both front and rear sides are inserted from above into a fixed side locking tool 39 supported by the threshing frame 38 and engaged. And is supported. Further, the upper rear part of the first cover body 33 is fixed to a fixed side bracket 41 supported by the threshing frame 38 by a knob bolt 40. It can be easily removed by removing the knob bolt 40 and releasing the engagement between the locking portion 33D and the fixed side locking tool 39. Also, it can be easily attached by the reverse procedure. A recess 42 is formed in the first cover body 33 where the knob bolt 40 is mounted so that the knob bolt 40 is recessed toward the inside of the machine body so that the knob bolt 40 does not largely protrude laterally outward.

[Second cover body]
As shown in FIGS. 1, 4, 12, and 13, the outer surface of the second cover body 34 is formed as a flat surface that extends straight from the upper end to the lower end in a front view. The second cover body 34 is supported by the threshing frame 38 so as to be capable of swinging and opening/closing about an axial axis in the front-rear direction on the upper side in order to perform maintenance work such as inspection and cleaning inside the handling room. The second cover body 34 is provided with an elastic engagement type lock mechanism 43 having a well-known structure that automatically engages with a locked member provided on the threshing device main body side when the second cover body 34 is moved toward the closed position. ing.

The lock mechanism 43 does not project outward from the outer surface of the second cover body 34, and can be unlocked manually from the outer side. When the lock is released, the second cover body 34 can be swung open as it is.

[Third cover body]
As shown in FIGS. 1 and 4, the third cover body 35 covers the front side portion of the selection processing unit and a part of the space on the front side of the threshing device 4 on the lateral side outer side. The third cover body 35 is provided in a state of extending along the lower side of the first cover body 33 and the lower side of the front side of the second cover body 34. As shown in FIGS. 6 and 7, the third cover body 35 has a lateral wall portion 61 that covers the left outer side of the lower front portion of the left wall portion 4A of the threshing device 4, and a lateral posture in a state of being continuous with the lateral wall portion 61. And a front wall portion 62 that covers the lower front side of the left side wall portion 4A of the threshing device 4. A plurality of reinforcements 70 are provided inside the portion where the lateral wall portion 61 and the front wall portion 62 are continuous.

The upper end edge of the lateral wall portion 61 of the third cover body 35 is formed in a rearward rising inclined posture in which the front end portion is located at the lowest position and is located higher toward the rear side. Then, at the upper end portion of the lateral wall portion 61 corresponding to the boundary portion K between the upper cover portion 31 and the lower cover portion 32, from the front end portion to the rear end portion, along the boundary portion K, inward in the left-right direction. A linear recess Q1 on the front side, which is linearly recessed, is formed.

As shown in FIG. 9, the third cover body 35 is provided with a locking portion 35D at a rear side portion of the inner lower portion, and the locking portion 71 is provided above the fixed-side locking tool 44 provided on the threshing device 4 side. It is supported by being inserted into and engaged from. Further, two positions separated from each other in the front and rear of the upper portion of the third cover body 35 are fixed to a fixed side bracket 45 provided on the threshing device 4 side by knob bolts 37. It can be easily removed by removing the knob bolt 37 and releasing the engagement between the locking portion 71 and the fixed side locking tool 44. Also, it can be easily attached by the reverse procedure.

The portion where the knob bolt 37 of the third cover body 35 is attached is a portion where a linear recess Q1 that is recessed toward the inside of the machine body is formed. Further, at the position where the knob bolt 37 is attached, a circular recessed portion 46 that is recessed in a circular shape from the bottom surface of the linear recessed portion Q1 toward the inner side in a stepwise manner is formed. In this way, the knob bolt 37 is prevented from protruding laterally outward from the outer surface of the third cover body 35.

As shown in FIG. 8, a protrusion 47 that protrudes outward in the left-right direction is formed in the front-rear halfway portion of the bottom of the recessed side of the linear recess Q1 formed in the third cover body 35. A recessed space 48 is formed on the inner side of the protruding portion 47 in the left-right direction. A transmission belt 16 that transmits power from the counter shaft 15 to the reaping input shaft 19 in a state of entering the recessed space 48 is provided on the inner side in the left-right direction of the third cover body 35.

With this configuration, it is possible to avoid the interference with the transmission belt 16 while deploying the third cover body 35 as close to the threshing device 4 as possible.

A front lower edge 35E of the third cover body 35 is formed in a curved shape in a side view. This place is a place where the uncut crops that are being planted first come into contact with each other in the side cover 30, and the front lower end edge 35E is formed in a curved shape, so that it can be smoothly guided without being caught. it can.

[Fourth cover body]
As shown in FIGS. 1 and 4, the fourth cover body 36 covers the lateral outer side of the rear side portion of the selection processing unit. The fourth cover body 36 is provided in a state of extending along the rear side of the third cover body 35 and the lower side of the rear side of the second cover body 34. As shown in FIGS. 10 and 11, the fourth cover body 36 is laterally aligned with the lateral wall portion 63 that covers the left outer side of the lower rear portion of the left wall portion 4A of the threshing device 4 and the lateral wall portion 63. The rear wall 64 extends in the posture and covers the lower rear of the left side wall 4A of the threshing device 4. A plurality of reinforcing ribs 72 are provided inside the portion where the lateral wall portion 63 and the rear wall portion 64 are continuous.

The upper end edge of the lateral wall portion 63 of the fourth cover body 36 extends in a substantially straight line in the front-rear direction, and is formed in a gentle rearward rising inclined posture that is gradually positioned upward toward the rear side. Then, at the upper end portion of the lateral wall portion 63 corresponding to the boundary portion K between the upper cover portion 31 and the lower cover portion 32, from the front end portion to the rear end portion, inward in the left-right direction along the boundary portion K. A linear recess Q2 on the rear side, which is linearly recessed toward the rear side, is formed. The front-side linear recess Q1 and the rear-side linear recess Q2 form a front-back linear recess Q.

As shown in FIG. 11, the fourth cover body 36 is provided with locking portions 73 on the front and rear sides of the inner lower portion, and the locking portions 73 are fixed to the fixed side locking tool 49 provided on the threshing device 4 side from above. It is supported by being engaged with it. In addition, two locations on the upper portion of the fourth cover body 36, which are separated from each other in the front and rear, are fixed to a fixed side bracket 50 provided on the threshing frame 38 by knob bolts 37. It can be easily removed by removing the knob bolt 37 and releasing the engagement between the locking portion 73 and the fixed side locking tool 49. Also, it can be easily attached by the reverse procedure.

The portion where the knob bolt 37 of the fourth cover body 36 is mounted is a portion where a linear recess Q2 that is recessed toward the inside of the machine body is formed. Further, a circular recess 51 that is recessed stepwise inward from the bottom surface of the linear recess Q1 is formed at the position where the knob bolt 37 is mounted. In this way, the knob bolt 37 is prevented from protruding laterally outward from the outer surface of the third cover body 35.

As shown in FIGS. 1, 4, 8 and 10, the third cover body 35 and the fourth cover body 36 are recessed toward the inner side in the left-right direction in a state of being continuously connected in the front-rear direction. An insertion portion 52 is formed. The recessed portion 52 is composed of a first recessed portion 52A formed at a rear lower portion of the third cover body 35 and a second recessed portion 52B formed on the lower side of the fourth cover body 36 in a continuous state. ..

In addition to the description, the third cover body 35, like the upper transmission portion cover 23, has an inclination that the upper surface 35A of the horizontal wall portion 61 that is flat in the vertical direction gradually enters inward in the left-right direction inwardly. The surface 35B is formed, and the bottom surface 35C that is flat in the vertical direction is formed below the inclined surface 35B. The first recess 52A is formed by the inclined surface 35B and the bottom surface 35C.

In addition, the fourth cover body 36 is formed with an inclined surface 36B that gradually enters inward in the left-right direction from an upper surface 36A of the horizontal wall portion 63 that is flat in the vertical direction, and below the inclined surface 36B. A flat bottom surface 36C is formed in the vertical direction. The inclined surface 36B and the bottom surface 36C form a second recessed portion 52B.

The recessed portion 52 extends from the lower end portion of the front end edge of the third cover body 35 toward the rear end portion of the fourth cover body 36, and is wider toward the rear side with the upper end edge in a rearward rising posture. .. The recessed portion 52 is formed in a rearwardly inclined posture, and can smoothly guide the uncut crops being planted to return to the standing posture without difficulty.

[Another embodiment]
(1) In the above embodiment, the linear recess Q is formed at the upper end of the lower cover part 32. However, instead of such a structure, the linear recess Q is formed at the lower end of the upper cover part 31. Alternatively, the linear recess Q may be formed in each of the upper end of the lower cover part 32 and the lower end of the upper cover part 31.

(2) In the above-described embodiment, in the side cover 30, the protrusion 47 is formed in the front and rear midway of the linear recess Q, and the transmission belt 16 is provided in the recessed space 48 formed on the inner side of the protrusion 47. However, instead of this configuration, a transmission chain or a transmission shaft may be provided as the transmission mechanism instead of the transmission belt 16, and the transmission may be performed without forming the recessed space 48. You may arrange|position in the state which avoids a mechanism.

(3) In the above-described embodiment, the outer surface of the upper cover portion 31 and the outer surface of the lower cover portion 32 have substantially the same distance in the left-right direction from the left side wall portion 4A of the threshing device 4. However, instead of this configuration, the lateral distance between the outer surface of the upper cover portion 31 and the outer surface of the lower cover portion 32 in the left-right direction from the left side wall portion 4A may be different from each other.

(4) In the above-described embodiment, the recessed portion 52 is formed in the lower cover portion 32, and the recessed portion 52 is continuous from the lower end portion of the front end edge of the lower cover portion 32 toward the rear side, and the upper end edge is rearwardly raised. In this state, the rear portion side is provided with a wider width, but instead of this configuration, the recessed portions 52 may be formed at substantially the same height in the front-rear direction, and such recessed portions 52 are formed. It may be configured not to.

(5) In the above-described embodiment, the front portion of the boundary portion K is formed in a front-down inclined posture in a side view, but instead of such a configuration, the boundary portion K extends over the entire front-rear direction. It may be configured to extend linearly.

(6) In the above-described embodiment, the lower front edge of the lower cover portion 32, that is, the lower front edge 35E of the third cover body 35 is formed to be curved in a side view. Alternatively, the lower front edge of the lower cover portion 32 may be linearly extended.

INDUSTRIAL APPLICABILITY The present invention can be applied to various harvesters such as a corn harvester as well as a combine such as an ordinary combine and a self-removing combine.

4 Threshing equipment
4A left side wall (side)
5 Grain Storage Device 10 Feeder 11 Mowing Section 17 Transmission Belt (Transmission Mechanism)
30 Side cover 31 Upper cover part 32 Lower cover part
33A lateral wall
33B front wall
33D locking part (front locking part, rear locking part)
33E Rear wall 37 Knob bolt (fixing tool)
46 recessed portion 47 projecting portion 48 recessed space 51 recessed portion 52 recessed portion (lower recessed portion)
70 Reinforcement (reinforcing member)
K Boundary Q, Q1, Q2 Linear recess

Claims (6)

A mowing unit located at the front of the machine body, and a feeder that conveys the grain culm pruned by the mowing unit are provided, and a threshing device that threshes the slaughter grain culm transported by the feeder, and a threshing process. A grain storage device that stores the obtained grains is provided in a state of being aligned in the left-right direction,
A side cover for covering the lateral side portion on the outer side in the left-right direction of the threshing device is provided,
The side cover is positioned on the upper side, and the lateral sides to detachably supported Ru upper cover section is divided formed between the lower cover located on the lower side, and the lower cover and the upper cover portion In the boundary portion between the side cover and the lower end portion of the upper cover portion and the upper end portion of the lower cover portion, or both, to the boundary portion over the front end portion and the rear end portion of the side cover. A linear concave portion that is linearly recessed along is formed,
A fixing tool for attaching and fixing the side cover to the lateral side portion is housed in the linear recess,
At a location where the fixture is mounted in the linear recessed portion, a recessed portion that is recessed from the recessed side bottom portion of the linear recessed portion inward in the left-right direction is formed ,
The front portion of the upper cover portion extends to a lower side position of the feeding end portion of the feeder in a side view, and covers the lateral side of the feeding end portion,
A lower portion of the upper cover portion is extended to a lower position so as to be located at a height position lower than a lower surface of the conveyance terminal end portion in a state of being inclined forward and downward in a side view,
A front locking portion located on the front side and a rear locking portion located on the rear side are provided on the inner surface of the lower side of the upper cover portion on the side of the lateral side portion, and the upper cover portion includes the lateral side portion. When supported on, the front locking portion and the rear locking portion are locked to the lateral side member,
The distance in the vertical direction of the front locking portion with respect to the lower portion of the upper cover portion is such that the front locking portion and the rear locking portion are at the same height position with respect to the lateral side portion. It is set to be larger than the distance in the vertical direction of the rear locking portion with respect to the lower portion of the upper cover portion,
In the upper cover portion, a lateral wall portion that covers the lateral side portion, a front wall portion that extends from the front end portion of the lateral wall portion to the lateral side portion side, and a lateral side portion from the rear end portion of the lateral wall portion. And a rear wall portion extended to the side,
The front locking portion extends from an inner surface of a front corner portion of the upper cover portion formed by the front wall portion and the lateral wall portion, and the rear locking portion includes a portion of the upper cover portion. A harvester extending from an inner surface of a rear corner portion formed by the rear wall portion and the lateral wall portion . In a portion located between the front-side fixing member and the rear-side fixing member in the recessed-side bottom portion of the linear concave portion, a protruding portion that protrudes outward in the left-right direction is formed,
A recessed space is formed on the inner side of the protrusion in the left-right direction,
The harvesting machine according to claim 1, wherein a power transmission mechanism for transmitting power in a state of entering the recessed space is provided on the inner side in the left-right direction of the side cover. The harvesting machine according to claim 1 or 2, wherein the outer surface of the upper cover portion and the outer surface of the lower cover portion have substantially the same distance from the lateral side portion in the left-right direction. The lower front edge of the lower cover part is formed in a sloped shape that rises forward in a side view, and the front part of the boundary part is formed in a sloped shape that slopes down in a side view. The front end is formed in a tapered shape in side view,
The harvesting machine according to any one of claims 1 to 3, wherein a reinforcing member is provided on an inner portion of a portion of the lower front edge of the lower cover portion where the lateral wall portion and the front wall portion are continuous. The harvester according to any one of claims 1 to 4, wherein a lower recessed portion that is recessed inward in the left-right direction is formed at a lower rear side portion of the lower cover portion. 6. The harvest according to claim 5, wherein the lower recessed portion is continuous from the lower end portion of the front end edge of the lower cover portion toward the rear side, and is wider toward the rear side in a state where the upper end edge is in a rearward rising posture. Machine.

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