JP7205956B1 - vegetable harvester - Google Patents

Abstract

A cabbage harvester that automatically removes the outer leaves of head vegetables is provided. A cabbage harvester (1) includes a head rotating section (200) and a blower (300). A head portion is placed on the head rotating portion 200 . Next, the rollers 211L, 212L, 212R, and 211L of the ball rotating portion 200 rotate counterclockwise when viewed from behind, thereby rotating and displacing the ball portion V0. Blower 300 generates an airflow from a fan in main body 310 and discharges the airflow obliquely forward right from opening 320 . At this time, an air current strikes the head part conveyed rearward on the roller part 210 from the left oblique rear, and the outer leaf of the head part V0 is blown off to the right of the roller part 210 by the air current and removed. [Selection drawing] Fig. 2

Description

The present invention relates to a vegetable harvester for harvesting head vegetables.

BACKGROUND ART There is a harvester as disclosed in Patent Document 1 for harvesting head vegetables such as cabbage from a field. This harvester takes in head vegetables from the field and transports them to the preparation section at the rear of the machine. In the preparation department, preparation work such as removal of outer leaves of head vegetables is performed.

Patent No. 6860927

Outer leaves are removed manually in a conventional harvester such as that disclosed in Patent Document 1. It is desired to save labor in harvesting work by automating the removal of outer leaves.

SUMMARY OF THE INVENTION An object of the present invention is to provide a vegetable harvester that automatically removes the outer leaves of head vegetables.

A vegetable harvesting machine according to the present invention is a vegetable harvesting machine for harvesting head vegetables having outer leaves from a field , comprising: vegetable cutting means for cutting the harvested head vegetables to separate them into a head part and a rhizome part; A vegetable rotating means having one or more rollers for rotating the head portion of the headed vegetable, the head portion of which is cut off by the vegetable cutting means, is placed, and an air current is generated. and an airflow generating means for displacing outer leaves under the head portion of the headed vegetable on the one or more rollers by the vegetable rotating means rotating the headed portion of the headed vegetable. Meanwhile, the headed vegetables are removed by the airflow generated by the airflow generating means.

According to this, the outer leaves are removed from the head vegetable by the airflow generated by the airflow generating means. Therefore, there is no need to manually remove the outer leaves. Further, the vegetable rotating means rotates the headed vegetable, thereby displacing the outer leaves under the headed vegetable. As a result, the outer leaves located in the lower part of the headed vegetables, which are difficult to remove by the air flow, are displaced and easily removed. Therefore, the outer leaves are more easily removed from the vegetable head than when the position of the vegetable head is not changed.

In the present invention, the headed vegetables are displaced to the conveying roller, which is at least one of the one or more rollers, as the conveying roller rotates, and the headed vegetables on the one or more rollers are pushed out, thereby conveying the headed vegetables. It is preferable that a protrusion is formed. As a result, the projections formed on the conveying roller convey the headed vegetables as the conveying roller rotates. Therefore, a configuration is realized in which the headed vegetables are transported while the outer leaves are removed from the headed vegetables.

Moreover, in the present invention, it is preferable that the projection is formed in a spiral shape extending around the conveying roller. As a result, the helically formed protrusions properly transport the headed vegetables.

Further, in the present invention, it is preferable that the airflow generating means generate an airflow so that the headed vegetables on the one or more rollers are hit by the airflow from the side thereof. As a result, since the head vegetables are hit with an air stream from the side, the lower outer leaves of the head vegetables are also easily removed by the air stream. In the present invention, the term "side" includes the left side, the left diagonally forward direction, the left diagonally backward direction, the right direction, the right diagonally forward direction, and the right diagonally backward direction as seen from a person facing the forward direction of the vegetable harvester. Furthermore, it also includes a direction obtained by adding a vertical component to these directions.

Also, in the present invention, the one or more rollers may be a first roller disposed on one side of the headed vegetables on the one or more rollers, a first roller on the opposite side of the headed vegetables on the one or more rollers. It preferably includes a second roller positioned to one side and a third roller positioned below the headed vegetable on said one or more rollers. According to this, a first roller and a second roller are arranged on both sides of the headed vegetable. Therefore, these rollers prevent the headed vegetables from jumping out of the rollers to both sides.

It is a left side view of a cabbage harvester concerning one embodiment of the present invention. It is the perspective view which looked at the head rotation part shown in FIG. 1 from back. FIG. 2 is a schematic left side view of the preparation unit of FIG. 1;

Preferred embodiments of the present invention will be described below.

A cabbage harvester 1 (vegetable harvester in the present invention) according to one embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG. In this embodiment, a cabbage harvester for harvesting cabbage will be described, but the harvester may be a vegetable harvester for harvesting head vegetables such as lettuce and Chinese cabbage, other than cabbage.

The cabbage harvester 1 is a machine that harvests cabbage V grown in the field as shown in FIG. 1 while traveling in the field. In this embodiment, a ridge U is formed in the field, and the cabbage V grows on the ridge U. As shown in FIG. 1, the cabbage harvester 1 includes a traveling body 2, a harvesting device 5 for harvesting cabbages, a preparation section 90 in which preparation work is performed, and a container for accommodating the harvested cabbages. and a container pedestal (not shown) where the The traveling machine body 2 has an engine 3 , a driver's seat 80 provided in the front part of the traveling machine body 2 , and a crawler type traveling section 85 . Each of these parts is supported by a frame 2 a that constitutes the outer frame of the traveling body 2 .

In addition, a part of the configuration of the cabbage harvester 1 is provided in a pair of left and right. In the following reference numerals, those with L indicate the configuration on the left side of the left and right pair, and those with R indicate the configuration on the right side of the pair of left and right. In addition, the front, back, left, and right directions in the specification below are directions viewed from a person facing the forward direction of the cabbage harvester 1 . A direction perpendicular to both the conveying direction X and the lateral direction of the cabbage V is defined as the Z direction (perpendicular direction) as shown in FIG. Of the Z directions, Z1 corresponds to the diagonally forward and upward direction, and Z2 corresponds to the diagonally backward and downward direction.

The engine 3 is provided at a position below the driver's seat 80 inside the traveling body 2 . Power of the engine 3 is transmitted to a hydraulic pump (not shown). Hydraulic pressure is applied from the hydraulic pump to hydraulic motors (not shown) of the raking wheel pair 10, the clamping and conveying device 40, the traveling unit 85, the cutting device 50, the ball rotating unit 200, the blower 300, and the rear conveying unit 400, which will be described later. supplied. As a result, the raking wheel pair 10, the nipping and conveying device 40, the traveling section 85, the cutting device 50, the ball rotating section 200, the blower 300 and the rear conveying section 400 are driven. The power from the engine 3 may be transmitted to each part through a transmission mechanism composed of belts, pulleys, gears, clutches, chains, and the like.

The harvesting device 5 includes a raking wheel pair 10 that rakes in the cabbage V grown in the field, and a nip that conveys the raking cabbage V picked by the raking wheel pair 10 rearward and upward along the conveying direction X in FIG. A conveying device 40 and a cutting device 50 for cutting the rhizome V1 of the cabbage V conveyed by the clamping and conveying device 40 are included.

The raking wheel pair 10 is arranged at the lowest part of the front part of the cabbage harvester 1, as shown in FIG. The raking wheel pair 10 consists of a pair of left and right wheels for raking in and pulling out the cabbage V in the field. The raking wheel pair 10 operates by interlocking with a driven pulley of the rhizome conveying unit 20 described below through an interlocking mechanism including a conveying belt and pulleys. The holding and conveying device 40 has a rhizome conveying section 20 that holds and conveys the rhizome V1 of the cabbage V, and a head and head conveying section 30 that holds and conveys the head portion V0 of the cabbage V.

As shown in FIG. 1, the rhizome conveying unit 20 is arranged obliquely above and behind the raking wheel pair 10 . The rhizome conveying unit 20 has a pair of left and right hydraulic motors, a driving pulley, a driven pulley, and a conveying belt wound around these pulleys. The transport belt extends along the transport direction X. As shown in FIG. A pair of left and right conveyor belts are pressed toward each other by a plurality of pulleys. In addition, the pair of left and right conveying belts are arranged while maintaining a predetermined interval in the left-right direction so as to be able to pinch the rhizome V1. Power from a hydraulic motor driven by hydraulic pressure supplied from a hydraulic pump is transmitted to the drive pulley. As a result, the conveying belt runs along the conveying direction X. As shown in FIG. In this way, the root stem portion V1 of the cabbage V is transported in the transport direction X by the root stem transporting section 20 while being sandwiched.

As shown in FIG. 1, the head transporting part 30 is arranged in the upper rear portion of the rhizome transporting part 20 and is separated from the rhizome transporting part 20 in the Z1 direction. As shown in FIG. 2, the head transporter 30 includes a pair of left and right hydraulic motors, drive pulleys 31L and 31R, driven pulleys, and transport belts 30L and 30R wound around these pulleys, similarly to the rhizome transporter 20. have in Each transport belt 30L and 30R extends along the transport direction X. As shown in FIG. A pair of left and right conveyor belts 30L and 30R are pressed toward each other by a plurality of pulleys 32L and 32R. Further, the pair of left and right conveying belts 30L and 30R are arranged while maintaining a predetermined interval in the left-right direction so as to be able to sandwich the head portion V0. Power from a hydraulic motor driven by hydraulic pressure supplied from a hydraulic pump is transmitted to the driving pulley, similarly to the rhizome conveying unit 20 . As a result, the transport belts 30L and 30R run along the transport direction X. As shown in FIG. In this way, the head portion V0 of the cabbage V is conveyed in the conveying direction X by the head conveying portion 30 while being sandwiched.

The cutting device 50 is arranged between the rhizome transfer section 20 and the head transfer section 30, as shown in FIG. The cutting device 50 has a disk-shaped rotary blade and a hydraulic motor for rotating the rotary blade. When hydraulic pressure is supplied from the hydraulic pump to the hydraulic motor, the hydraulic motor rotates the rotary blade. The rotary blade cuts the cabbage V conveyed by the rhizome conveying section 20 and the head conveying section 30 to separate the head section V0 and the rhizome section V1.

As shown in FIG. 3, the preparing section 90 has a head rotating section 200 (vegetable rotating means according to the present invention), a blower 300 (airflow generating means according to the present invention), and a rear conveying section 400 .

The head part V<b>0 transported from the head transport part 30 is placed on the head rotating part 200 . As shown in FIG. 2, the ball rotating portion 200 includes a roller portion 210, spiral members 220a and 220b (protrusions in the present invention), a hydraulic cylinder 230 supplied with hydraulic pressure from a hydraulic pump, and a hydraulic cylinder 230 supplied with hydraulic pressure from the hydraulic pump. a supplied hydraulic motor. As will be described later, the head rotation unit 200 is configured to be tiltable, but unless otherwise specified, the following description assumes that the roller unit 210 is in a horizontal direction.

The roller portion 210 includes a roller 211L (first roller in the present invention), a roller 211R (second roller in the present invention), a roller 212L, and a roller 212R (the rollers 212L and 212R are The third rollers (rollers 212R and 211R) referred to in the present invention have the transport rollers referred to in the present invention) and a support member 215. As shown in FIG.

The rollers 211L, 211R, 212L, and 212R are cylindrical members extending from near the lower end of the rear end of the ball conveying section 30 to near the front end of the rear conveying section 400 behind. These rollers are arranged in the order of rollers 211L, 212L, 212R, and 211R from left to right. These rollers are equally spaced from each other. The interval between the rollers in the left-right direction is adjusted to be sufficiently small so that when the ball portion V0 is placed on the rollers, it does not fall from between the rollers. The rollers 211L and 211R are arranged at the same height. The rollers 212L and 212R are arranged slightly below the rollers 211L and 211R. The head part V0 transported by the head transport part 30 is transferred to the upper surfaces of the rollers 212L and 212R. The ball portion V0 on the rollers 212L and 212R is sandwiched from the left and right by the rollers 211L and 211R. In other words, the roller 211L is positioned to the left of the ball portion V0, the roller 211R is positioned to the right of the ball portion V0, and the rollers 212L and 212R are positioned below the ball portion V0. Power is transmitted from a hydraulic motor to the roller portion 210 through a transmission mechanism including pulleys, chains, and the like. This power causes the rollers 211L, 212L, 212R and 211R to rotate clockwise when viewed from behind.

Spiral members 220a and 220b are fixed to the outer surfaces of rollers 212R and 211R, respectively. Spiral members 220a and 220b form protrusions that protrude outward from the outer surfaces of rollers 212R and 211R. The spiral members 220a and 220b are configured by tubular elastic members. The spiral members 220a and 220b are wound around the outer surfaces of the rollers 212R and 211R from the front end to the rear end of the rollers 212R and 211R so as to go around the rollers counterclockwise when viewed from the rear. ing. The direction in which the spiral members 220a and 220b are wound around the rollers 212R and 211R, respectively, is opposite to the rotation direction of the rollers 212R and 211R. As a result, the ball portion V0 is pushed out by the spiral members 220a and 220b and conveyed backward.

The support member 215 is a member that supports the rollers 211L, 212L, 212R and 211R, as shown in FIG. The support member 215 has a front fixing portion 215a, a rear fixing portion 215b, a left frame 215c and a right frame (not shown). The front fixing portion 215 a is a plate-like member extending in a direction orthogonal to the front-rear direction, and constitutes the front portion of the support member 215 . The front fixing portion 215a supports the front ends of the rollers 211L, 212L, 212R and 211R so that these rollers are rotatable. The rear fixing portion 215 b is a plate-like member extending in a direction orthogonal to the front-rear direction, and constitutes the rear portion of the support member 215 . The left frame 215c and the right frame are rod-shaped members. The left frame 215c extends in the front-rear direction and constitutes the left side wall of the support member 215. As shown in FIG. A front end and a rear end of the left frame 215c are fixed to the front fixing portion 215a and the rear fixing portion 215b. The right frame extends in the front-rear direction and constitutes the right side wall of the support member 215 . A front end and a rear end of the right frame are fixed to a front fixing portion 215a and a rear fixing portion 215b. The support member 215 is rotatably supported by the frame 2a of the traveling body 2 at the connection point R at the lower end of the rear fixing portion 215b. As a result, the ball rotating portion 200 can rotate around the connection point R in the clockwise direction R1 or in the counterclockwise direction R2.

The hydraulic cylinder 230, as shown in FIGS. 2 and 3, has a cylinder 230a supplied with hydraulic pressure from a hydraulic pump and a rod 230b inserted into the cylinder 230a. A rear end portion of the cylinder 230 a is supported by the frame 2 a of the traveling body 2 . The tip of the rod 230b is connected near the center of the lower end of the front fixing portion 215a. Hydraulic cylinder 230 is operated by hydraulic pressure supplied from a hydraulic pump. This causes the rod 230b to protrude from the cylinder 230a or be retracted into the cylinder 230a. When the rod 230b is pulled into the cylinder 230a, the head rotation part 200 rotates in the R2 direction around the connection point R, and the front part of the head rotation part 200 descends. When the rod 230b protrudes from the cylinder 230a, the ball rotator 200 rotates about the connection point R in the R1 direction, and the front part of the ball rotator 200 rises.

As described above, the power from the hydraulic motor driven by the hydraulic pressure supplied from the hydraulic pump is transmitted to the roller portion 210 of the ball rotating portion 200 . As a result, the rollers 211L, 211R, 212L and 212R rotate clockwise when viewed from behind. Spiral members 220a and 220b fixed to rollers 212R and 211R are displaced by the rotation of each roller. The ball part V0 placed on the ball rotating part 200 is rotated by the rotation of the rollers 211L, 212L, 212R and 211R. As each roller rotates the head portion V0, the outer leaf under the head portion V0 is also displaced.

Further, when the rollers 212R and 211R rotate clockwise when viewed from the rear, the spiral members 220a and 220b push out the head portion V0 rearward and transport the head portion V0 to the rear transport portion 400. FIG. The rotational speeds of the rollers 211L, 212L, 212R and 211R are appropriately adjusted for adjusting the conveying speed of the head portion V0 and the length of time during which the head portion V0 receives airflow from the blower 300, which will be described later.

Blower 300 is a device that generates airflow. The blower 300, as shown in FIG. 2, has a main body 310, an opening 320, and a hydraulic motor supplied with hydraulic pressure from a hydraulic pump. The main body portion 310 is arranged on the upper left side of the roller 211L and slightly behind the center in the front-rear direction. A fan for generating an airflow is installed inside the body portion 310 . A portion of the body portion 310 protrudes outward to form an opening portion 320 . A tip of the opening 320 is formed with an injection port for injecting the airflow generated by the internal fan. The injection port opens horizontally toward the right diagonally forward. Power is transmitted to the blower 300 from a hydraulic motor driven by hydraulic pressure supplied from a hydraulic pump, similarly to the rhizome conveying unit 20 . As a result, the airflow generated in the main body 310 is emitted from the opening 320 obliquely forward to the right in the direction of the roller 211R. The airflow is emitted from the opening 320 toward the head portion V0 on the roller portion 210, so that the airflow hits the head portion V0 from the oblique rear left. The outer leaves of the head portion V0 are blown away by this airflow and removed from the main body of the head portion V0. The removed outer leaves are discharged to the right from the roller section 210 by the airflow. In addition, the magnitude of the airflow is appropriately adjusted in order to adjust the ability to remove the outer leaves. For example, when the head portion V0 is large and the outer leaves are difficult to remove, the airflow is adjusted to be strong in order to improve the removing ability.

As shown in FIG. 3, the rear transport section 400 transports the head portion V0 from which the outer leaves have been removed to the rear, while providing a space for the operator of the adjustment work to perform the preparation work on the head portion V0. It is a device. The rear transport section 400 has a hydraulic motor supplied with hydraulic pressure from a hydraulic pump, a drive pulley driven by the hydraulic motor, a follower pulley, and an endless transport belt 410 wound around the two pulleys. The front end of the conveying belt 410 is adjacent to the rear portion of the ball rotating portion 200, and its height in the vertical direction is substantially the same as the height of the rear ends of the rollers 212L and 212R. The head portion V<b>0 from which outer leaves have been removed is transferred from the roller portion 210 onto the transfer belt 410 . When the conveyor belt 410 runs due to the operation of the hydraulic motor, it is conveyed backward by the conveyor belt 410 . A container is placed on the container table on the side of the preparing section 90 . An operator standing between the container and the preparing section 90 appropriately prepares the headed portion V0 on the conveyor belt 410, and then transfers the headed portion V0 to the container.

In the above configuration, when the cabbage harvester 1 operates and the power from the engine 3 is transmitted to each part via the hydraulic pump, the cabbage harvester 1 harvests the cabbage V on the ridge U as follows. go. The traveling part 85 moves the cabbage harvester 1 forward. As a result, as shown in FIG. 1, the raking wheel pair 10 approaches the front cabbage V and takes in the cabbage V. As shown in FIG. The cabbage V pulled out by the pair of raking wheels 10 is transported backward along the transport direction X while the rhizome V1 is supported by the rhizome transporter 20 and the head part V0 is supported by the head transporter 30. be.

When the cabbage V is conveyed by the clamping and conveying device 40, the cabbage V is cut by the cutting device 50 and separated into the head portion V0 and the rhizome portion V1. The head part V0 from which the rhizome part V1 has been cut off is transported to the preparation part 90 by the head transport part 30 . The rhizome V1 cut off from the head part V0 drops from the upper end of the rhizome transporter 20 to the field.

In the preparing section 90 , the head portion V<b>0 transported from the head transporting section 30 is placed on the head rotating section 200 . Next, the rollers 211L, 212L, 212R, and 211R rotate clockwise as viewed from the rear, thereby rotating the head portion V0. As a result, the outer leaves below the head portion V0 are displaced. Further, the rotation of the rollers 212R and 211R rotates the spiral members 220a and 220b fixed to the respective rollers. The rotated helical members 220a and 220b push the ball portion V0 rearward into the rear carrier portion 400. As shown in FIG.

On the other hand, in blower 300, the fan in body portion 310 generates an airflow, and the airflow is emitted obliquely forward right from opening 320. As shown in FIG. At this time, an air stream hits the head portion V0 from the left obliquely rear side, which is conveyed rearward on the roller portion 210, and the outer leaves of the head portion V0 are blown obliquely right front of the roller portion 210 by the air stream and removed.

In addition, the inclination of the head rotation part 200 is appropriately changed according to the inclination of the field. For example, assume that the inclination of the head rotating part 200 with respect to the horizontal direction becomes too large because the entire field is steeply inclined. In this case, for example, when the field slopes upward toward the forward direction, the rod 230b is pulled into the cylinder 230a in the hydraulic cylinder 230, and the head rotation portion 200 is rotated in the R2 direction around the connection point R, thereby The front part of the rotating part 200 is lowered. As a result, the posture of the ball rotating portion 200 approaches the horizontal. Conversely, when the field slopes downward toward the forward direction, the rod 230b is protruded from the cylinder 230a in the hydraulic cylinder 230, and the head rotation portion 200 is rotated in the R1 direction around the connection point R, thereby moving the head rotation portion. Raise the front of the 200. As a result, the posture of the ball rotating portion 200 approaches the horizontal. In this way, even if the entire field is inclined, the inclination of the head rotation part 200 can be adjusted so that the head rotation part 200 has an appropriate angle with respect to the horizontal direction.

Further, the inclination of the head rotating portion 200 may be appropriately changed for adjustment of the ability to remove outer leaves and the conveying speed of the head portion V0. For example, when the front portion of the head rotating portion 200 is lowered, the conveying speed of the head portion V0 is reduced, while the period during which the head portion V0 receives the airflow from the blower 300 in the head rotating portion 200 is lengthened, and the outer leaves are easier to remove. Conversely, if the front portion of the head rotation portion 200 is raised, the period during which the head portion V0 receives the airflow from the blower 300 in the head rotation portion 200 is shortened, so that the outer leaves are less likely to be removed, while the head portion V0 is less likely to be removed. The conveying speed of is increased.

As described above, the airflow generated by the blower 300 removes the outer leaves from the head portion V0. Therefore, there is no need to manually remove the outer leaves. Further, the outer leaf under the head portion V0 is displaced by the head rotation portion 200 rotating the head portion V0. As a result, the outer leaves located in the lower part of the head part V0 are difficult to be removed by the air current (for example, immediately after being transferred from the head part conveying part 30, the outer leaves are under the central part of the head part V0). Outer leaves) are also displaced, making them easier to remove. Therefore, the outer leaves are more likely to be appropriately removed from the head portion V0 compared to the case where the head portion V0 is not changed in position. In addition, since the opening 320 hits the head portion V0 with an airflow from the left obliquely rearward direction, the outer leaves of the lower portion of the head portion V0 are also affected by the airflow, compared to the case where the airflow hits the head portion V0 from above the head portion V0, for example. Easy to remove by

The spiral members 220a and 220b fixed to the rollers 212R and 211R properly convey the head portion V0 as the rollers 212R and 211R rotate. Therefore, a configuration is realized in which the head portion V0 is transported while the outer leaves are removed from the head portion V0.

The roller 211L is arranged on the left side of the head portion V0, and the roller 211R is arranged on the right side of the head portion V0. Further, the rollers 212L and 212R are arranged between the rollers 211L and 211R and below the ball portion V0. Therefore, the rollers 211L and 211R prevent the ball portion V0 from jumping out to both sides of the roller portion 210. As shown in FIG.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims.

In the embodiment described above, spiral members 220a and 220b are fixed only to rollers 212R and 211R. However, the spiral member may be fixed to all the rollers, or may be fixed to at least one of the rollers.

In the above-described embodiment, helical members 220a and 220b wrap around the outer surfaces of rollers 212R and 211R, respectively, for one revolution. However, the helical member may wrap around each roller two or more times, or may wrap around each roller less than one turn.

In the above-described embodiment, spiral members 220a and 220b are constituted by tubular elastic members and wrap around the respective outer surfaces of rollers 212R and 211R. However, the projections may be configured integrally with the rollers 212R and 211R by protruding the outer surfaces of the rollers 212R and 211R to form spiral convex portions. Further, instead of the spiral members 220a and 220b, a plurality of dot-like or linear protrusions may be formed on the surfaces of the rollers 212R and 211R and arranged in a spiral. Also, the projection does not have to be helical. For example, the projections may be formed along one or more elliptical outer edges of the roller cross section along a plane slightly inclined with respect to the direction orthogonal to the axial direction of the roller. In this case, the protrusions may or may not wrap around the surfaces of the rollers 212R and 211R.

In the above-described embodiment, the rollers 212R and 211R rotate clockwise when viewed from the rear, so that the spiral members 220a and 220b push out the head portion V0 rearward and transport the head portion V0 to the rear transport portion 400. do. However, on the contrary, the rollers 212R and 211R may rotate counterclockwise when viewed from behind. In this case, the spiral members 220a and 220b are wound clockwise around the rollers 212R and 211R when viewed from behind. It should be noted that the arrangement of the blower 300 is preferably left-right symmetrical with the above-described embodiment.

In the above-described embodiment, the two rollers 212L and 212R are arranged slightly below the rollers 211L and 211R. However, there may be no rollers arranged slightly below the rollers 211L and 211R, one roller, or three or more rollers arranged slightly below the rollers 211L and 211R. , the conveying amount of the head portion V0, the size of the head portion V0, and the like.

In the above-described embodiment, the rollers 211L and 211R are arranged so that the rollers are positioned on the left and right sides of the head portion V0. However, the number of rollers on each of the left and right sides may be two or more, and is appropriately adjusted according to the amount and speed of conveyance of the head portion V0, the size of the head portion V0, and the like. Also, the rollers 211L and/or 211R may be omitted. In that case, in order to prevent the head portion V0 from protruding to the left and right, the head rotation portion 200 may be provided with a plate-shaped member positioned to the left and/or right of the head portion V0.

In the above-described embodiment, the blower 300 is arranged above and to the left of the roller 211L and slightly behind the center in the front-rear direction. However, other arrangements of the blowers are possible. The front/rear, left/right, and top/bottom positions and inclination of the blower may be adjusted in accordance with the rotation direction of each roller, the transport speed, transport amount, size, and the like of the head portion V0. A plurality of blowers may be provided.

In addition, the airflow of the blower 300 is emitted from the opening 320 obliquely forward to the right in the direction of the roller 211R. However, it may also be emitted diagonally forward left, diagonally backward left or right, upward left or right, or downward left or right. Also, the airflow of the blower 300 may be emitted from multiple directions. By adjusting the arrangement of the blowers and the direction of the airflow discharge, the head rotating portion 200 may be configured such that the airflow hits the head portion V0 from above, from the rear, from the right side, or the like.

1 Cabbage Harvester 200 Head Rotating Part 211L, 212L, 211R, 212R Rollers 220a, 220b Spiral Member 300 Blower V0 Heading Part

Claims (5)

A vegetable harvester for harvesting head vegetables having outer leaves from a field,
vegetable cutting means for cutting the harvested head vegetables and separating them into a head part and a rhizome part;
vegetable rotating means having one or more rollers on which the head portion of the headed vegetable whose rhizome has been cut off by the vegetable cutting means is placed and which rotates the headed portion of the placed headed vegetable;
and an airflow generating means for generating an airflow,
The airflow is directed toward the headed vegetable while displacing the outer leaves under the headed portion of the headed vegetable on the one or more rollers by rotating the headed portion of the headed vegetable by the vegetable rotating means. A vegetable harvester characterized in that the vegetables are removed by an air current generated by a generating means.
At least one of the one or more rollers, which is a conveying roller, is formed with projections that are displaced as the conveying roller rotates and push out the headed vegetables on the one or more rollers to convey the headed vegetables. 2. The vegetable harvesting machine according to claim 1, characterized in that: 3. The vegetable harvesting machine according to claim 2, wherein the protrusion is formed in a spiral extending around the conveying roller. The vegetable harvesting machine according to any one of claims 1 to 3, wherein the airflow generating means generates an airflow so that the headed vegetables on the one or more rollers are hit by the airflow from the side thereof. . said one or more rollers, a first roller positioned on one side of the headed vegetable on said one or more rollers, a first roller positioned on the opposite side of said headed vegetable on said one or more rollers; A vegetable harvester as claimed in any one of claims 1 to 3 including a second roller and a third roller positioned below the headed vegetables on said one or more rollers.

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