JP6725803B2 - General-purpose combine - Google Patents

Description

The present invention relates to a general combine harvester.

Generally, a combine has a handling room for threshing culms, and the handling room is equipped with a handling barrel for threshing culms while rotating. Then, the grain culm that has been mowed by the mowing section is transported to the handling room and threshed by the handling barrel, and then the mowing operation is performed while being sorted into the grain and the straw waste.

In the above combine, for example, it is necessary to remove clogging in the handling room and clean the handling room for maintenance. Especially in general-purpose combine, compared to self-decombining combine, because it performs cutting work on various grain culms such as rice, wheat and soybean, it is different in order to avoid mixing different types of grain. Before harvesting the culm, it is necessary to clean the inside of the handling room.

Conventionally, when an operator cleans the handling room, a combine that opens and closes the side plate of the handling room and a combine that opens and closes the top plate of the handling room have been devised to facilitate the cleaning work. Since the combine has a takeover section that receives the grain culm from the cutting section and delivers it to the handling room, and the periphery of the takeover section is covered with a handling room entrance plate, etc., it was difficult to clean the inside of the takeover section.

Therefore, a general-purpose combine has been proposed in which a cleaning port is formed in a side plate portion of a handling chamber entrance plate that covers a side of a transfer portion, and the cleaning port is configured to be opened and closed by a cleaning lid (see, for example, Patent Document 1). .. According to such a general-purpose combine, it becomes possible to clean the inside of the take-over portion through the cleaning opening by opening and operating the cleaning lid.

Japanese Patent No. 5844602

By the way, when cleaning a general-purpose combine, each part of the general-purpose combine is idled to discharge the residual debris, or air is blown to each part of the general-purpose combine by a blower to blow away the residual debris. However, even during such a cleaning operation, waste tends to collect in the take-over portion, so that the take-over portion needs to be finally cleaned, which causes a problem that the cleaning efficiency is reduced.

The present invention was created in view of the above circumstances in order to solve these problems, and the invention of claim 1 cuts grain culms and a feeder for cutting the grain culms. a reaper that conveyed by the threshing chamber for threshing the culms that remove all laminae in the reaper, provided starting end of the threshing chamber, takeover to be passed to the accept culms from the feeder of the reaper threshing chamber In a general-purpose combine having a section and a handling room entrance plate covering the periphery of the transfer section , a feeder and a handling room are provided between the rear end of the feeder and the bottom plate section of the handling room entrance plate as the cutting unit moves up and down. In providing a separation space for allowing relative displacement with the inlet plate and providing a fall prevention member for covering the separation space, the fall prevention member is provided in the separation space in a state in which a cutting unit is connected. and configured to be retracted from the separation space, a general purpose combine, characterized in that the debris falling to the bottom of the takeover part during cleaning operation was discharging path for discharging to the outside of the apparatus.
According to a second aspect of the present invention, the fall prevention member extends from the lower end of the feeder toward the handling chamber entrance plate, and the discharge path retracts the fall prevention member from the handling room entrance plate. The general-purpose combine according to claim 1 , wherein the general-purpose combine is formed.
The invention according to claim 3 is the general-purpose combine according to claim 1 or 2 , wherein a retracting mechanism for retracting the fall prevention member is provided on the side of the handling chamber inlet plate. ..

According to the first aspect of the present invention, since the discharge path for discharging the dust falling to the bottom of the takeover portion to the outside of the machine during the cleaning work is provided, the amount of the waste accumulated in the takeover portion during the cleaning work is reduced, and the cleaning work is performed. The efficiency of can be improved. Moreover, since the discharge path is formed between the end of the feeder and the handling chamber entrance plate, the discharging path can be easily formed by utilizing the separation space between the feeder and the handling room entrance plate.
Further, according to the second aspect of the invention, since the discharge path is formed by retracting the feeder end side from the handling chamber inlet plate, compared to the case where the handling chamber inlet plate side on the machine side is retracted, Can be simplified.
Further, according to the invention of claim 3, the retracting mechanism can forcibly retract the fall prevention member.

It is a side view of a general-purpose combine according to an embodiment of the present invention. It is an internal side view which shows the threshing part of the general-purpose combine which concerns on one Embodiment of this invention. It is a front view which shows the threshing part of the general-purpose combine which concerns on one Embodiment of this invention. It is a perspective view which shows the threshing part of the general-purpose combine which concerns on one Embodiment of this invention. It is a side view which shows the succeeding part (side cover opening, cleaning lid closing) of the general-purpose combine which concerns on one Embodiment of this invention. It is a side view which shows the succeeding part (side cover opening, cleaning lid opening) of the general-purpose combine which concerns on one Embodiment of this invention. It is a side view which shows the succeeding part (closed waste cover) of the general-purpose combine which concerns on one Embodiment of this invention. It is a side view which shows the succeeding part (opening of a waste discharge lid) of the general-purpose combine concerning one embodiment of the present invention. It is a perspective view showing a handling barrel and a handling room entrance plate of a general-purpose combine concerning one embodiment of the present invention. It is a side view which shows 1st Embodiment of the 2nd discharge path (closed) provided in the takeover part of the general-purpose combine which concerns on one Embodiment of this invention. It is a side view which shows 1st Embodiment of the 2nd discharge path (opening) provided in the takeover part of the general-purpose combine which concerns on one Embodiment of this invention. It is a side view which shows 2nd Embodiment of the 2nd discharge path (closed) provided in the takeover part of the general-purpose combine which concerns on one Embodiment of this invention. It is a side view which shows 2nd Embodiment of the 2nd discharge path (opening) provided in the takeover part of the general-purpose combine which concerns on one Embodiment of this invention. It is a side view which shows 3rd Embodiment of the 2nd discharge path (opening) provided in the takeover part of the general-purpose combine which concerns on one Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 is a general-purpose combine, and the general-purpose combine 1 has a body 3 supported by a pair of left and right crawler traveling devices 2. In front of the machine body 3, a mowing unit 5 for mowing grain stalks is provided so as to be able to move up and down, and at the right rear of the mowing unit 5, a driving operation unit 6 for operating the general combine 1 is provided. .. A threshing device 7 that threshes and sorts grains from the culms cut by the mowing unit 5 is provided on the left rear of the operation unit 6, and the selected grain is on the right side of the threshing device 7. There is provided a Glen tank 9 for storing. A discharge auger 10 for discharging the grains in the Glen tank 9 is provided above the Glen tank 9, and a post-processing device 11 for shredding the threshing-treated culms is provided behind the threshing device 7. It is provided.

The cutting unit 5 has a divider 12 for weeding grain culm in the front, and a scraping reel 13 to which a plurality of tines are attached is provided above the divider 12. Behind the scraping reel 13, an auger 15 for transporting the grain culm is arranged in a sideways state orthogonal to the traveling direction, and behind the auger 15, the grain culm transported by the auger 15 is threshed. A feeder 16 that conveys to 7 is provided.

The driving operation unit 6 is provided with a driver's seat 17 for a driver to sit on, and an operation panel 19 is provided in front of the driver's seat 17. An operation lever 20 for steering the general combine 1 is provided on the right side of the operation panel 19, and a display panel 21 for displaying various instruments is provided on the left side of the operation lever 20. There is. A side panel 22 is provided on the left side of the driver's seat 17, and a main shift lever 23 is provided on the side panel 22.

As shown in FIGS. 1 to 4, the threshing device 7 has a handling chamber 25, and in the handling chamber 25, a handling barrel 26 for threshing a harvested grain culm is rotatably installed. Helix-shaped handle teeth 27 are provided on the outer peripheral portion of the handling cylinder 26 in a winding shape. At the tip of the handling barrel 26, the grain culm transported by the feeder 16 to the starting end of the handling chamber 25 is provided. A spiral blade 24 for scraping into the handling chamber 25 is provided in a wound shape. In other words, the starting end of the handling room 25 is a transfer portion 28 that receives the grain culms from the reaping unit 5 and delivers it to the handling room 25, and the periphery of the transfer portion 28 is covered by the handling room inlet plate 50 and the like. ..

The handling chamber inlet plate 50 has at least a bottom plate portion 50a that is inclined downward in the front direction to form the bottom surface of the takeover portion 28, and left and right side plates that rise from both left and right ends of the bottom plate portion 50a and form side surfaces of the takeover portion 28. And a section 50b. The side plate portion 50b of the present embodiment has a lower side plate portion 50c that vertically rises from both left and right end portions of the bottom plate portion 50a in processing, and an upper outward portion with a predetermined inclination angle from the upper end of the lower side plate portion 50c. And an upper side plate portion 50d.

As shown in FIGS. 4 to 6, on one side plate portion 50b (upper side plate portion 50d) of the handling chamber entrance plate 50 (upper side plate portion 50d), an operator cleans the transfer portion 28 or is not blocked by the transfer portion 28. A cleaning port 51 for removing is formed. Then, a cleaning lid 52 formed in the same shape as the cleaning opening 51 so as to cover the cleaning opening 51 is attached to the side plate portion 50b of the handling room entrance plate 50 from the outside.

The cleaning lid 52 is detachably attached to the side plate portion 50b of the handling room entrance plate 50 via a knob bolt 55, and the cleaning opening 51 is opened and closed by attaching the cleaning lid 52 to the handling room entrance plate 50. .. In addition, when the cleaning lid 52 is attached to the cleaning opening 51, the inside of the cleaning lid 52 (the surface facing the cleaning opening 51 when the cleaning lid 52 is attached to the handling room entrance plate 50) has the cleaning opening 51. A plate 53 having the same shape as the cleaning port 51 is welded in order to eliminate a step difference between the cleaning chamber inlet plate 50.

At least the lower part of the handling cylinder 26 is covered with a receiving net 29. Below the receiving net 29, there is provided a sorting chamber 39 in which a swinging sorting body 37 and the like including the Karawan fan 30, the swinging moving plate 31, the chaff sheave 32, the rack 33, the Straw rack 35, the Glensieve 36 and the like are installed. In the sorting chamber 39, the first helix 40 and the second helix 41 are arranged in a lateral direction orthogonal to the traveling direction. The threshing device 7 is mainly composed of the handling room 25 and the sorting room 39.

The threshing device 7 is covered with a cover body, and the upper part of the handling chamber 25 is covered with a top plate 45. The rear part of the handling room 25 is covered with a rear cover 46, and the left side of the handling room 25 including the handling room inlet plate 50 is covered with a side cover 47. A hinge portion 48 is provided at an upper end portion of the side cover 47, and the side cover 47 can be opened and closed on the left side of the handling chamber 25 by rotating about the hinge portion 48 as a fulcrum. Further, a gas spring 49 is attached to the side cover 47 to urge the side cover 47 upward (opening direction).

Next, the operation of the general-purpose combine 1 configured as above will be described. The worker moves the general-purpose combine 1 to the field and starts the cutting work from the work start position. The reaping work is performed while rotating the take-in reel 13. The scraping reel 13 causes a grain culm while rotating and cuts the grain culm caused by a cutting blade. The harvested grain culm is conveyed from the auger 15 to the feeder 16 and then conveyed to the transfer unit 28 by the feeder 16. The grain culm transported to the transfer section 28 is scraped into the handling chamber 25 by the spiral blade 24 of the handling barrel 26. In the grain culm scraped into the handling chamber 25, the paddy etc. is handled by the handling teeth 27 of the rotating handling body 26, and the treated paddy etc. passes through the receiving net 29 to make an oscillating sorting body. Falls to 37.

Grains such as paddy dropped on the swing sorting body 37 are sorted into the first and second crops by the swing sorting by the swing sorting body 37 and the wind sorting by the Karatan fan 30, respectively. Here, the first product is a grain that has been subjected to a sorting treatment, and the second product is a mixture in which a grain is mixed with impurities such as straw scraps and cuttings that are insufficiently sorted. The first product is conveyed from the first helix 40 to the first fried device 40a and then to the Glen tank 9 by the first fried device 40a, and the second product is the second helix 41 to the second reducing device. After being transported to 41a, it is returned to the handling chamber 25 again for re-sorting.

When performing a mowing operation of different types of grain culms, the operator cleans the inside of the threshing device 7 in order to prevent mixing of different types of grains after the mowing operation is completed or before the mowing operation is started. Then, the inside of the handling chamber 25 is cleaned by opening the side cover 47. When the side cover 47 is opened, the receiving net 29, the handling room entrance plate 50 and the cleaning lid 52 are exposed. The operator removes the receiving net 29 and cleans the inside of the handling room 25. At this time, the cleaning lid 52 is removed and the inside of the transfer portion 28 is cleaned from the cleaning opening 51.

However, in the transfer portion 28, there is a corner portion 28a whose lower and rear sides are covered with the bottom plate portion 50a of the handling chamber inlet plate 50, and left and right sides are covered with the lower side plate portion 50c of the handling chamber inlet plate 50, Since a large amount of debris accumulates in the corner portion 28a, even if a large cleaning port 51 is provided in the upper side plate portion 50d of the handling chamber inlet plate 50, it is not easy to remove the debris accumulated in the corner portion 28a, and the debris can be removed completely. There was a possibility that the scraps that were not left might remain in the corner portion 28a.

Therefore, as shown in FIGS. 7 to 9, the general-purpose combine 1 of the present embodiment is provided with the waste discharging portion 60 capable of opening and closing one side or both sides of the corner portion 28a. The waste discharge portion 60 of the present embodiment is formed on the left and right side plate portions 50b (lower side plate portions 50c), and has the left and right waste discharge ports 61 that open the left and right sides of the corner portion 28a and the left and right waste discharge ports 61. The left and right discharge lids 62 are opened and closed. According to such a waste discharging unit 60, it is possible to discharge the waste accumulated in the corner portion 28a to the outside of the takeover unit 28 by performing the opening operation.

In the present embodiment, the waste discharge ports 61 are provided on the left and right side plate portions 50b, but they may be provided on either the left or right side plate portion 50b. However, since the degree of scrap is uneven depending on the rotation direction of the handling cylinder 26 (the direction of arrow A shown in FIGS. 3 and 9), when the scrap discharge port 61 is provided on either the left or right side plate portion 50b, the scrap is discharged. It is desirable to provide the side plate portion 50b (the left side plate portion 50b in the present embodiment) on the downstream side in the rotation direction where it easily accumulates.

The lower end of the waste discharge port 61 is preferably located at the same height as the upper surface of the bottom plate portion 50a or below the upper surface of the bottom plate portion 50a. For example, the waste discharge port 61 of the present embodiment is a triangular opening including an upper side 61a along the horizontal direction, a front side 61b along the vertical direction, and a lower side 61c inclined along the upper surface of the bottom plate portion 50a. The lower side 61c, which is the lower end of the waste discharge port 61, is located below the upper surface of the bottom plate 50a. With such a waste discharge port 61, it is possible to prevent the discharge of waste from being hindered by the rising portion of the side plate portion 50b rising from the bottom plate portion 50a, and it is possible to discharge the waste smoothly and easily.

When the waste discharge port 61 and the discharge lid 62 are provided on the left and right side plate portions 50b as in the present embodiment, the left and right discharge lids 62 are connected to each other and are linked to the opening/closing operation of one of the discharge lids 62. It is desirable to open and close the other discharge lid 62. For example, the waste discharging portion 60 of the present embodiment includes a connecting shaft 63 rotatably arranged at a lower portion of the front end of the bottom plate portion 50a, left and right discharging lids 62 provided at both ends of the connecting shaft 63, and one ( And a knob bolt 64 for fixing the discharge lid 62 on the left side at a closed position. After loosening the knob bolt 64, when the one (left side) discharge lid 62 is rotated downward with the connecting shaft 63 as a fulcrum, While the one (left) waste discharging port 61 is opened, the other (right) discharging lid 62 is rotated downward in conjunction with this, and the other (right) waste discharging port 61 is also opened. Further, by the operation in the reverse procedure, the other (right side) discharge lid 62 (scrap discharge port 61) can be closed based on the closing operation of the one (left side) discharge cover 62 (scrap discharge port 61). According to such a waste discharging section 60, the other discharging lid 62 is opened/closed in conjunction with the opening/closing operation of the one discharging lid 62, so that the other discharging lid 62 may be located at the deep position of the machine body 3. Can be opened and closed.

Further, the general-purpose combine 1 of the present embodiment includes the first discharge path 65 (waste discharge path) for discharging the waste discharged from the corner portion 28a through the waste discharge section 60 (waste discharge port 61) to the outside of the machine. .. Specifically, as shown in FIG. 3, the waste discharged from the corner portion 28 a through the waste discharge portion 60 (scrap discharge port 61) is used to remove the waste, which is the Karako case 66 that covers the front of the Karano fan 30 and the sorting chamber 39. The left and right side walls 67 lead the outside of the machine. According to such a first discharge path 65, it is possible to prevent the waste discharged from the corner portion 28a from staying in the machine.

Further, since the one side (left side) side plate portion 50b of the present embodiment is provided with the above-described cleaning port 51 located above the waste discharging port 61 and larger than the waste discharging port 61, it is succeeded from the cleaning port 51. Putting a hand on the part 28, the dust collected in the corner part 28a is pushed out from the waste discharge port 61, or air is sent from the cleaning port 51 into the transfer part 28 to blow the waste accumulated in the corner part 28a from the waste discharge port 61. Cleaning work such as, becomes possible.

In the present embodiment, when forming the waste discharge port 61 and the cleaning port 51 on the one side plate portion 50b, the waste discharge port 61 is formed on the lower side plate portion 50c, and the upper side forming a plane different from that of the lower side plate portion 50c. A cleaning port 51 is formed on the side plate portion 50d. With this configuration, the discharge lid 62 and the cleaning lid 52 can be configured in a flat shape, so that the waste discharge opening 61 and the cleaning opening 51 are formed over two flat surfaces, or the waste discharge opening 61 and the cleaning opening are formed on a curved surface. Compared with the case of forming 51, the waste discharge port 61 and the cleaning port 51 can be airtightly covered with a simple structure.

By the way, when cleaning the general-purpose combine 1, the parts of the general-purpose combine 1 are idled to discharge the residual debris, or the parts of the general-purpose combine 1 are blown with air by a blower to blow away the residual debris. However, since dust is likely to be collected in the take-over portion 28 even during such a cleaning operation, the take-over portion 28 needs to be finally cleaned, which causes a problem that the cleaning efficiency is reduced.

Therefore, the general-purpose combine 1 of the present embodiment includes the second discharge path 70 (discharge path) that discharges the dust falling on the bottom portion 28b of the transfer portion 28 to the outside of the machine during the cleaning work. According to such a second discharge path 70, it is possible to reduce the amount of debris accumulated in the transfer portion 28 during the cleaning work and improve the efficiency of the cleaning work. Hereinafter, three embodiments (70A, 70B, 70C) of the second discharge path 70 will be described with reference to FIGS. 10 to 14.

As shown in FIGS. 10 to 14, each of the second discharge paths 70A, 70B, and 70C according to the first to third embodiments is between the end of the feeder 16 and the bottom plate portion 50a of the handling chamber inlet plate 50. It is formed by using the separation space S that exists and allows relative displacement between the feeder 16 and the handling chamber entrance plate 50 as the cutting unit 5 moves up and down. The separation space S is covered with an elastic member 71 at the upper side in order to prevent the grain from falling outside the machine during the harvesting work. The elastic member 71 extends from the lower end portion of the feeder 16 toward the handling chamber inlet plate 50, and the lower surface at the tip end side elastically abuts the bottom plate portion 50a of the handling chamber inlet plate 50 so that the feeder 16 and the handling chamber inlet plate 50 are handled. The upper part of the separation space S is covered while allowing relative displacement with the chamber inlet plate 50.

The second discharge path 70A of the first embodiment shown in FIGS. 10 and 11 is formed by retracting the terminal side of the feeder 16 from the handling chamber inlet plate 50. Specifically, by retracting the elastic member 71 provided at the end of the feeder 16 from the handling chamber inlet plate 50, the second discharge path 70A having a discharge port between the elastic member 71 and the handling chamber inlet plate 50. Is formed. As the retracting structure of the elastic member 71, a rotary type in which the elastic member 71 is retracted by rotating, a slide type in which the elastic member 71 is retracted by sliding, a detachable type in which the elastic member 71 is retracted by attaching and detaching can be adopted. In the first embodiment shown in FIGS. 10 and 11, the elastic member 71 is moved to the bottom plate portion of the handling chamber inlet plate 50 based on the rotation about the rotation support shaft 72 provided at the lower end of the feeder 16 as a fulcrum. A rotary retracting structure for retracting upward from 50a is adopted.

The second discharge path 70B of the second embodiment shown in FIGS. 12 and 13 is formed by retracting the handling chamber inlet plate 50 side from the terminal end side of the feeder 16. Specifically, by retracting a part of the handling chamber inlet plate 50 downward from the elastic member 71 provided at the terminal end of the feeder 16, a discharge port is provided between the elastic member 71 and the handling chamber inlet plate 50. The second discharge path 70B is formed. The retreat structure of the handling room entrance plate 50 includes a rotary type that retreats a part of the handling room entrance plate 50, a slide type that retreats a part of the handling room entrance plate 50, and a handling room entrance plate 50. It is possible to adopt a detachable type or the like in which a part of the above is retracted by attaching and detaching. In the second embodiment shown in FIGS. 12 and 13, a pivot shaft 73 provided at the bottom of the handling chamber inlet plate 50 is used as a fulcrum. Based on such rotation, a rotary retracting structure is adopted in which the bottom plate portion 50a of the handling chamber inlet plate 50 is retracted downward from the elastic member 71.

The second discharge path 70C of the third embodiment shown in FIG. 14 is formed by retracting the elastic member 71 on the feeder 16 side from the handling chamber inlet plate 50 as in the first embodiment. This is different from the first embodiment in that a mechanism for retracting the device is provided on the handling chamber entrance plate 50 side. Specifically, the handling chamber inlet plate 50 of the third embodiment is provided with a cam mechanism 74 capable of forcibly lifting the tip side of the elastic member 71, and the cam mechanism 74 forces the elastic member 71. The second discharge path 70C having a discharge port between the elastic member 71 and the handling chamber inlet plate 50 is formed by the manual lifting. The opening/closing operation of the second discharge paths 70A, 70B, 70C may be performed manually or by an actuator such as an electric motor.
Incidentally, in the above-mentioned respective embodiments, the state where the elastic member 71 is retracted and the second discharge paths 70A, 70B, 70C are opened (see FIGS. 11, 13, and 14) is connected without removing the reaper 5. It is possible to perform the cleaning operation by opening the second discharge paths 70A, 70B, and 70C in the connected state of the reaping unit 5 in this state.

According to the present embodiment configured as described above, the mowing unit 5 for mowing the grain culm, the handling chamber 25 for threshing the grain culm harvested by the reaping unit 5, and the starting end portion of the handling chamber 25 are provided. The take-over portion 28 that receives the grain culms from the feeder 16 of the reaper 25 and delivers it to the handling room 25, the handling room inlet plate 50 that covers the periphery of the take-over portion 28, and the bottom 28b of the take-over portion 28 during the cleaning work. Since the second discharge paths 70A, 70B, 70C for discharging the waste to the outside of the machine are provided, the amount of the waste accumulated in the transfer portion 28 during the cleaning work can be reduced and the efficiency of the cleaning work can be improved.

Further, the second discharge paths 70A, 70B, 70C are formed between the end of the feeder 16 and the handling chamber inlet plate 50, so that the second space using the separation space S between the feeder 16 and the handling chamber inlet plate 50 is used. The two discharge paths 70A, 70B, and 70C can be easily formed.

Further, since the second discharge paths 70A and 70C are formed by retracting the terminal end side of the feeder 16 from the handling chamber entrance plate 50, compared to the case where the handling chamber entrance plate 50 side of the machine body 3 is retracted. Can be simplified.

1 General-purpose combine 3 Machine body 5 Mowing section 7 Threshing device 16 Feeder 25 Handling room 28 Transfer section 28a Corner section 50 Handling room entrance plate 50a Bottom plate part 50b Side plate part 51 Cleaning port 52 Cleaning lid 60 Waste discharging part 61 Waste discharging port 62 Discharging lid 65 1st discharge route 70, 70A, 70B, 70C 2nd discharge route

Claims (3)

Along with mowing the grain culm, a mowing unit that conveys the mowed grain stalk by a feeder ,
A handling room for threshing the grain culms cut by the reaping unit,
Provided at the starting end of the handling room, a hand-over section that receives grain culms from the feeder of the mowing section and delivers it to the handling room,
In a general-purpose combine including a handling chamber entrance plate that covers the periphery of the takeover portion ,
A separation space is provided between the rear end of the feeder and the bottom plate portion of the handling chamber entrance plate to allow relative displacement between the feeder and the handling chamber entrance plate as the cutting unit is moved up and down, and the separation space is covered. When installing a fall prevention member for
The fall prevention member is configured to be retractable from the separation space in a state in which the mowing part is connected, and the separation space is discharged to the outside of the machine during the cleaning operation, where the debris that falls to the bottom of the transfer part is discharged. A general-purpose combine characterized by being used as a discharge route. The fall prevention member extends from the lower end of the feeder toward the handling chamber inlet plate, and the discharge path is formed by retracting the fall prevention member from the handling chamber inlet plate. The general-purpose combine according to claim 1 . The general-purpose combine according to claim 1 or 2 , wherein a retracting mechanism for retracting the fall prevention member is provided on the handling chamber inlet plate side .

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