JP7138985B1 - Chinese chive harvester - Google Patents

Abstract

An object of the present invention is to provide a leek harvesting apparatus capable of automating harvesting work suitable for leeks. A leek harvesting device includes a traveling body 1 that travels along rows of leeks W cultivated in an array, a cutting mechanism 2 that cuts the leek W at a predetermined height position, and a cutting mechanism 2 that cuts the leeks W. It comprises a transport mechanism 3 for transporting the chives W in an upright state, and a storage part 4 for storing the chives W transported by the transport mechanism 3. The cutting mechanism 2 includes a disc-shaped cutter member 8 that rotates horizontally around a rotating shaft 9 that extends in the vertical direction, a cutter driving means that drives the cutter member 8 to rotate, and a cutter member 8 that is adjusted to a predetermined height from the ground surface. and adjusting means for holding. [Selection drawing] Fig. 1

Description

TECHNICAL FIELD The present invention relates to a leek harvesting device for cutting and harvesting leeks planted in a field.

2. Description of the Related Art Conventionally, there is known a vegetable harvesting apparatus that automatically harvests so-called leafy vegetables such as spinach and Japanese mustard spinach grown in fields. This machine cuts roots of vegetables by inserting cutting blades into the ground while traveling, and harvests the cut vegetables by placing them on a conveyor (see, for example, Patent Document 1).

JP-A-2006-92

By the way, when harvesting Chinese chives, it is required to cut not the roots but the stems and leaves exposed on the ground surface. This allows for multiple harvests by regrowing from what is left in the soil.

However, since the above conventional harvesting apparatus has a structure in which the cutting blade is inserted into the ground to cut the roots in the ground, there is a problem that the leeks cannot be harvested again.

In the cultivation of Chinese chives, the surface of the soil is sometimes covered with a mulch sheet while the leeks are grown. However, since the conventional harvesting apparatus has a structure in which the cutting blade is inserted into the ground, the mulch sheet is cut by the cutting blade. There is a problem that the reuse of the multi-sheet cannot be expected.

In view of the above points, it is an object of the present invention to provide a leek harvesting apparatus capable of automating a harvesting operation suitable for leeks.

In order to achieve such an object, the present invention provides a traveling body that travels along rows of leeks cultivated in an array, a cutting mechanism that cuts the leeks at a predetermined height position, and a leek that has been cut by the cutting mechanism. A leek harvesting device comprising a conveying mechanism for conveying leeks in an upright state and a containing section for containing the leeks conveyed by the conveying mechanism, wherein the traveling body is moved to a rear position for operating the traveling. The housing portion is provided on one side of the operation portion, and the cutting mechanism includes a disc-shaped cutter member that horizontally rotates around a rotation shaft extending in the vertical direction, and a disc-shaped cutter member that rotates. The conveying mechanism comprises cutter driving means and adjusting means for adjusting and holding the cutter member at a predetermined height position from the ground surface. A pair of moving conveyor belts and a belt driving means for driving the rotation of both conveyor belts in synchronization are provided. The cut chives are sandwiched and conveyed in the rotating direction, and the conveying mechanism is arranged downstream of the pair of conveying belts in the conveying direction of another pair of conveying belts rotated synchronously with the pair of conveying belts. belts, the upstream end portions of the other pair of transport belts in the transport direction being positioned immediately above the downstream end portions of the pair of transport belts in the transport direction, and the other pair of transport belts The leek is received from the pair of conveyor belts above the pair of conveyor belts and conveyed, and the pair of conveyor belts and the other pair of conveyor belts each include a belt body that is stretched over a plurality of pulleys; a sponge member provided on the entire circumference of the outer peripheral surface of the belt main body; is provided with a belt pressure contact amount adjusting means for reducing the pressure contact force of both conveying belts against the chives passing through the bent portion, and the pressure contact amount adjusting means is one conveying belt passing outside the bent portion and pulling the one conveying belt in the outward direction of the bent portion in sliding contact with the belt main body, thereby relaxing the pressure contact force .

According to the leek harvesting apparatus of the present invention, the leeks are cut by the cutting mechanism while the traveling body travels along the row of leeks, and the cut leeks are transported to the container by the transport mechanism. At this time, since the cutting mechanism is provided with a disc-shaped cutter member that rotates horizontally, the leek can be smoothly cut without tilting the cut surface. Since the cutting position of the leek is set at a suitable position by the adjusting means, the cutter member can cut the leek without hindering the reharvesting of the leek.

Also, the cut chives are conveyed while being sandwiched between the conveying surfaces of the two conveying belts. As a result, the sheet can be conveyed while maintaining the standing posture which is the posture when the sheet is cut.

Furthermore, by providing another pair of conveyor belts for receiving and conveying chives above the pair of conveyor belts, short chives and weeds fall without being caught by the other pair of conveyor belts. . Therefore, it is possible to prevent the conveyed chives from being uneven in length and from being mixed with weeds.

In addition, since the conveying belt is provided with a sponge member, it is possible to set the pressing force between the conveying surfaces of the two conveying belts relatively high to prevent the leek from falling off, and to form a nipping state in which the leek is prevented from being damaged. can.

In addition, since the accommodating portion is provided on one side of the operating portion and is provided with a bent portion that bends in the direction toward the accommodating portion, the accommodating portion does not interfere with the operator operating the operating portion, Smooth operation is possible. In addition, at the bent portion of the conveying belts, the pressure contact force between the conveying surfaces of the two conveying belts increases. Therefore, it is possible to prevent the leek from being damaged.

Further, in the present invention, the transport mechanism is characterized by having a guide member for guiding the chives along the transport path of the chives. The guide member prevents the leek from falling during transport, and the leek can be transported in a stable standing posture.

At this time, the belt driving means includes a first driving motor for driving one of the pair of conveying belts to rotate, and a first driving motor for rotating the other conveying belt in synchronization with the first driving motor. It is preferable to have a second drive motor for driving.

When driving a pair of conveyor belts synchronously, for example, a transmission mechanism for simultaneously transmitting the driving force of a single drive motor to the two conveyor belts is required, and this transmission mechanism crosses the leek conveyance path. There is a risk of interfering with the chives being transported in the standing posture. In contrast, in the present invention, one of the transport belts is driven by the first drive motor and the other transport belt is driven by the second drive motor, so interference with the chives during transport can be prevented.

In addition, the conveying mechanism includes a guide member that guides the chives along the conveying path of the chives, and the belt body of the conveying belt has an expanded portion that is expanded by a predetermined dimension above the sponge member over the entire length, The guide member is characterized in that it has a hanging part that hangs down between the leek conveying path and the expansion part in order to prevent contact between the leek and the expansion part during conveyance.

According to this, the drooping portion of the guide member is prevented from contacting the extended portion of the belt body with the chives, so that the chives can be prevented from being caught in the conveying belt and each pulley, and the chives can be smoothly conveyed. .

Further, each of the pair of conveyor belts is stretched over a plurality of pulleys, and the pulleys over which one of the conveyor belts is stretched and the pulleys over which the other conveyor belt is stretched are provided so as to be displaced from each other along the stretching direction. It is characterized by

When the conveyor belt is provided with a sponge member, dents may occur due to the effect of tension on the pulley crossover portion. can be prevented from decreasing.

Further, a belt support member is provided on the forward path of the pair of transport belts to support the respective transport belts at predetermined positions and guide their rotation in the transport direction.

Since both conveyor belts are provided with a sponge member on the entire outer peripheral surface of the belt body, the sponge member itself is likely to be deformed, and the load of chives during conveyance may cause downward slack. Therefore, by providing a belt supporting member to support each conveying belt at a predetermined position, it is possible to suppress the occurrence of slackness and to convey the chives reliably.

Further, the present invention is characterized by comprising control means for synchronizing the conveying speed of the conveying mechanism and the traveling speed of the traveling body.

According to this, when the leek is cut while traveling, not only can the leek fall down reliably, but unnecessary force in the direction of pulling out or pushing down is not applied to the leek at the time of cutting, and the leek is damaged. can be prevented and smooth cutting and transportation can be performed.

Further, in the present invention, a storage part for temporarily storing the chives transported by the transport mechanism in an upright state is provided between the terminal end of the transport path by the transport mechanism and the storage part, and the storage part is the leek. The leek is provided with a mounting table for placing the leeks in an upright state, and a contact member that contacts the leeks on the mounting table to maintain the leeks in the standing state. It is characterized by being movably provided on the stand.

Since the abutting member for maintaining the upright state of the chives is movably provided on the table, it is possible to change the storage amount of the chives conveyed toward the container on the table. As a result, even when the amount of chives is relatively small, the abutting member can be brought into contact with the chives on the mounting table so that the chives stand upright, and the posture of the chives immediately before being put into the container can be changed. can be kept in good condition.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory side view showing a schematic configuration of a chive harvesting device according to an embodiment of the present invention; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory plan view showing a schematic configuration of a Chinese chive harvesting device of this embodiment; FIG. 4 is an explanatory plan view showing the essential parts of the cutting mechanism; Explanatory sectional drawing which shows the structure of a conveying belt. FIG. 4 is an explanatory plan view showing a part of the transport mechanism; Explanatory drawing which shows a belt drive means. FIG. 4 is an explanatory plan view showing the other part of the transport mechanism; FIG. 8A is an explanatory diagram showing the gap between the conveyor belts given as a comparative example, and FIG. 8B is an explanatory diagram showing the gap between the conveyor belts of this embodiment. FIG. 9A is an explanatory diagram showing the conveying state of a conveying belt as a comparative example, and FIG. 9B is an explanatory diagram showing the conveying state of the conveying belt of this embodiment. FIG. 4 is an explanatory rear view showing a storage section and a storage section; FIG. 5 is an explanatory plan view showing a modification of the transport mechanism; FIG. 12 is an explanatory diagram schematically showing the configuration of the transport mechanism in FIG. 11; FIG. 4 is an explanatory diagram showing the shapes of a guide member, a conveyor belt corresponding thereto, and a pulley;

One embodiment of the present invention will be described based on the drawings. The chive harvesting apparatus of the present embodiment comprises a traveling body 1, a cutting mechanism 2, a conveying mechanism 3, and a storage section 4, as shown in FIGS.

The traveling body 1 includes a plurality of wheels 5 and a frame 6 that supports the wheels 5 . The wheels 5 are driven by a travel drive motor (not shown). The travel drive motor is operated by an operator via an operation section 7 provided at the rear end of the frame 6 . The traveling body 1 is moved forward, backward, and stopped by operating the operation unit 7 .

The cutting mechanism 2 is provided on the front side of the frame 6, and includes a disk-shaped cutter member 8, as shown in FIG.

As shown in FIG. 1, the cutter member 8 is horizontally supported by a vertically extending rotating shaft 9. As shown in FIG. means) to drive the rotation.

A sharp continuous cutting edge 11 is formed on the peripheral edge of the cutter member 8 . Since the cutter member 8 is horizontally supported as shown in FIG. 1, the cut surface of the chive W is not inclined. Moreover, the continuous sharp cutting edge 11 of the cutter member 8 makes the cutting surface of the leek W smoother than, for example, a saw blade, so that the leek W can be cut while maintaining high quality.

Also, the cutter member 8 is provided so as to be able to move up and down, and is held at a predetermined height position by adjusting means (not shown). As a result, the cutting position of the chive W is set at a suitable position, so that the chive W can be cut without hindering the reharvesting of the chive W.

As the adjustment means, the cutter member 8 may be moved forward and backward in an oblique direction to substantially adjust the vertical position, or the position of the cutter member 8 may be adjusted by moving the wheels 5 on the front side up and down. good too.

As shown in FIG. 2, the transport mechanism 3 includes a plurality of transport belts, a plurality of pulleys, and two drive motors, which will be described later.

The transport belts consist of a first front transport belt 12 , a second front transport belt 13 , a first rear transport belt 14 and a second rear transport belt 15 .

As shown in FIG. 4, the first front conveyor belt 12 is composed of a belt body 16 acting as a timing belt and a sponge member 17 provided around the outer circumference of the belt body 16 . The outer peripheral surface of the sponge member 17 is used as a conveying surface. The materials forming the second front conveying belt 13, the first rear conveying belt 14, and the second rear conveying belt 15, which will be described later, also have the same configuration as that of the first front conveying belt 12 shown in FIG. , are assigned the same reference numerals, and the description thereof is omitted.

As shown in FIG. 5 , the first front conveyor belt 12 includes a first front driven pulley 18 provided at the front end of the frame 6 and a first front driven pulley 18 provided behind the first front driven pulley 18 . 1 lower drive pulley 19.

As shown in FIG. 6, the first lower driving pulley 19 is rotationally driven by a first driving motor 20 (belt driving means), and accordingly the first front conveying belt 12 rotates endlessly. The first front driven pulley 18 corresponds to the pulley at the leading end of the return path of one of the conveyor belts in the present invention.

As shown in FIG. 5 , the second front conveyor belt 13 includes a second front driven pulley 21 provided at the front end of the frame 6 and a second front driven pulley 21 provided behind the second front driven pulley 21 . 2 lower drive pulley 22.

The second lower drive pulley 22 is rotationally driven by a second drive motor 23 (belt drive means) whose rotation is controlled in synchronization with the first drive motor 20, as shown in FIG. The second front driven pulley 21 corresponds to the pulley at the leading end of the return path of one of the conveyor belts in the present invention.

As shown in FIG. 1, the first front conveying belt 12 and the second front conveying belt 13 rotate in a state in which the forward conveying surfaces are in contact with each other. The chive W cut by the cutting mechanism 2 is sandwiched between the first front conveyor belt 12 and the second front conveyor belt 13 and conveyed backward. At this time, since the first front conveying belt 12 and the second front conveying belt 13 are provided with the sponge members 17, the cut chives W can be conveyed while being prevented from coming off without being damaged.

As shown in FIG. 7, the first rear conveyor belt 14 includes a first upper drive pulley 24 coaxial with a first lower drive pulley 19 and rotationally driven by a first drive motor 20 (belt drive means); and a first rear driven pulley (first rear end pulley 25 and a pair of first auxiliary pulleys 26 and 27) provided on the rear side of the . As a result, the first rear conveyor belt 14 rotates endlessly.

The second rear conveyor belt 15 includes a second upper drive pulley 28 that is coaxial with the second lower drive pulley 22 and is driven to rotate by a second drive motor 23 (belt drive means), and is provided on the rear side of the frame 6 . It is stretched over a second rear driven pulley (a pair of second auxiliary pulleys 29, 30 and a second rear end pulley 31). As a result, the second rear conveyor belt 15 rotates endlessly.

As shown in FIG. 1 , the first rear conveyor belt 14 and the second rear conveyor belt 15 rotate while their forward conveying surfaces are in contact with each other. The chives W sandwiched between the first front conveyor belt 12 and the second front conveyor belt 13 are transferred to the first rear conveyor belt 14 and the second rear conveyor belt 15 and continuously conveyed.

In addition, the position where the leek W is sandwiched between the first rear transport belt 14 and the second rear transport belt 15 is higher than the position where the leek W is sandwiched between the first front transport belt 12 and the second front transport belt 13. It is in. As a result, short chives W, weeds, and the like can be dropped during transportation by the first rear transportation belt 14 and the second rear transportation belt 15 . Note that the first rear conveyor belt 14 and the second rear conveyor belt 15 according to the present embodiment have a function as a conveyor belt in the present invention, and also have a function as other conveyor belts in the present invention.

In addition, since a gap can be formed between the conveying belts on both sides by the first driving motor 20 and the second driving motor 23, the first driving motor 20 and the second driving motor 23 can move the leek W to be conveyed. and can smoothly drop short chives, weeds, etc.

Further, as shown in FIG. 5, the first front driven pulley 18 and the first lower drive pulley 19, and the second front driven pulley 21 and the second lower drive pulley 22 are provided at different positions. It is

When the first lower driving pulley 19 and the second lower driving pulley 22 are positioned to face each other, the sponge member 17 may be dented due to the effect of tension.

For this reason, for example, as shown in FIG. The depression overlaps with the belt 15 at the upstream end contact position, creating a relatively large gap S, and the gripping force of the leek W is reduced. Therefore, by shifting the positions of the first lower drive pulley 19 and the first upper drive pulley 24 from the positions of the second lower drive pulley 22 and the second upper drive pulley 28 in the front-rear direction, the position shown in FIG. Thus, the recesses can be shifted back and forth, and the gap S can be dispersed to suppress the decrease in the gripping force of the Chinese chive W.

As shown in FIG. 7 , the first rear conveyor belt 14 is bent in the lateral direction (direction toward the storage section 4 ) via the first rear end pulley 25 . The second rear conveyor belt 15 between the second upper driving pulley 28 and the second rear end pulley 31 is also bent along this bent portion 32 . As a result, a first transport path 33 extending in the transport direction along the traveling direction of the traveling body 1 and a second transport path 34 extending from the terminal end of the first transport path 33 toward the housing portion 4 via the bent portion 32 are formed. is formed.

The bending portion 32 is provided with a bending guide 35 (belt pressure contact amount adjusting means) for reducing the pressure contact force of the second rear conveying belt 15 against the first rear conveying belt 14 . The bent guide 35 slides on the belt body 16 of the second rear conveyor belt 15 and pulls the second rear conveyor belt 15 outward from the bent portion 32 . As a result, the leek W passing through the bent portion 32 can be prevented from being damaged by an excessive clamping force.

The transport mechanism 3 configured as described above includes a transport control unit (control means) (not shown) for controlling the transport speed. The conveying control unit synchronizes the conveying speed of the Chinese chive W and the traveling speed of the traveling body 1 . As a result, the conveying speed is delayed from the traveling speed of the traveling body 1 and the chive W is pushed down before cutting, or the conveying speed is higher than the traveling speed of the traveling body 1 and the chive W is pulled out before cutting. Thus, the cutting mechanism 2 can smoothly cut the chive W and transport the cut chive W while the traveling body 1 is running.

Further, as shown in FIG. 2, a plurality of belt support members 36 are provided at positions where the distance between the pulleys in the first conveying path 33 is relatively long. When the distance between pulleys such as the first front conveying belt 12 and the second front conveying belt 13 is relatively long, as shown in FIG. There is a possibility that the pinching state of the leek W cannot be maintained. Therefore, in the present embodiment, as shown in FIG. 9B, a belt support member 36 is provided to restrict the bending deformation of the sponge member 17. As shown in FIG. As a result, the leek W can be conveyed while being reliably held.

The housing portion 4 is provided on one side of the operating portion 7 as shown in FIGS. 2 and 7 . On the upstream side of the storage section 4, a storage section 37 is provided for temporarily storing the chives W transported by the transport mechanism 3 in an upright state.

As shown in FIG. 10, the storage part 37 includes a mounting table 38 on which the leeks W are placed in an upright state, and a contact member 39 that contacts the leeks W on the mounting table 38 and maintains the upright state. there is The abutting member 39 is provided so as to be movable on the mounting table 38 according to the amount of the Chinese chive W stored. As a result, when the amount of chives W is relatively small, the abutment member 39 is moved so as to reduce the mounting area of the mounting table 38, and the chives W can be temporarily stored while maintaining the upright state.

The chives W stored in the storage portion 37 are subsequently stored in the storage portion 4 and taken out from the storage portion 4 when a predetermined amount of chives W are stored in the storage portion 4 .

In the present embodiment, an example is shown in which the storage portion 37 is provided to automate the introduction of the leek W into the storage portion 4, but the present invention is not limited to this. Alternatively, the transported Chinese chives W may be arranged and thrown into the container 4 manually.

Further, in the above embodiment, as shown in FIG. 5, the first front conveying belt 12 and the second front conveying belt 13 of the conveying mechanism 3 form the conveying path of the front half. However, other than this, the first front conveying belt and the second front conveying belt may be divided into a plurality of parts so that parts of them overlap vertically.

A modified example of the transport mechanism 3 will be described in detail. As shown in FIG. ) divided into second front transport belts 13a, 13b, 13c.

In the modified example of the transport mechanism 3, the first front transport belts 12a and 12c and the second front transport belts 13a and 13c correspond to the transport belts in the present invention, and the first front transport belt 12b and the second front transport belt 12b correspond to the transport belts in the present invention. The partial conveying belt 13b corresponds to another conveying belt in the present invention.

The first front conveying belt 12a and the second front conveying belt 13a are in close contact with each other on the outward path and face each other, and the first front conveying belt 12b and the second front conveying belt 13b are in close contact with each other on the outward path and face each other. The first front conveying belt 12c and the second front conveying belt 13c face each other with their outward paths in close contact with each other.

In this way, the conveying path of the leeks W is composed of the first front conveying belts 12a, 12b, 12c divided into a plurality of parts and the second front conveying belts 13a, 13b, 13c divided into a plurality of parts. Therefore, compared to the case where the single first front transport belt 12 and the single second front transport belt 13 constitute the transport path, the number of transport belts 12a, 12b, 12c, 13a, 13b, 13c is reduced. Since the length can be shortened, bending deformation is suppressed. As a result, bending deformation can be suppressed without providing the belt support member 36 (see FIG. 5), and complication of the device configuration can be prevented.

Further, as shown in FIGS. 11 and 12, the first front conveyor belt 12b and the second front conveyor belt 13b located in the intermediate portion are arranged in the same direction as the first front conveyor belt 12a and the second front conveyor belt 12a located in the foremost portion. It is positioned above the partial conveying belt 13a and above the first front conveying belt 12c and the second front conveying belt 13c positioned at the rearmost part.

Therefore, the leek W can be reliably cut by setting the gripping position of the leek W between the first front conveying belt 12a and the second front conveying belt 13a positioned at the foremost portion to a low position.

At this time, since the gripping position of the chives by the first front conveying belt 12a and the second front conveying belt 13a positioned at the forefront is a low position, the long chives W and the short chives Ws and weeds X may also be transported. However, since the first front conveying belt 12b and the second front conveying belt 13b located in the middle part have a high grasping position of the chive W, the short chive Ws and the weeds X fall, Only long and good chives W can be transported and harvested.

Although not shown in FIGS. 1 and 2, the transport path for the chives W over at least the entire length of the transport mechanism 3 is provided with, as shown in FIG. A plate-like guide member 40 is provided.

By providing the guide member 40, the leek W can be conveyed in a stable standing posture, but there is a risk that the leek W will be caught between the guide member 40 and the conveying belt or pulley, and the conveying will not be carried out smoothly. Therefore, in the present embodiment, as shown in FIG. 13, the upper portion of the belt body 16 is provided with an extended portion 16a, and the lower portion of the guide member 40 is provided with a hanging portion 40a.

The expanded portion 16 a is formed by expanding the sponge member 17 upward by a predetermined dimension, and can be easily obtained by forming the belt body 16 wider than the sponge member 17 . Since the belt main body 16 constitutes a timing belt in a state in which the extended portion 16a is partially provided, a wide pulley 41 (a pulley having a shape extended in the axial direction) is provided to match the belt main body 16 .

The drooping portion 40a is formed integrally with the guide member 40, but may be a separate member. The drooping portion 40a is provided so as to hang down between the conveying path of the chive W and the extended portion 16a and the upper end portion of the wide pulley 41, whereby the chive W is caught in the belt main body 16 and the wide pulley 41. to prevent According to this, it is possible to smoothly convey the cut leek W while maintaining the upright posture.

DESCRIPTION OF SYMBOLS 1... Running body, 2... Cutting mechanism, 3... Conveying mechanism, 4... Accommodating part, 7... Operation part, 8... Cutter member, 9... Rotating shaft, 12, 12a, 12c... First front conveying belt (conveying belt ) , 12b . ... First rear conveyor belt (conveyor belt, other conveyor belt), 15 ... Second rear conveyor belt (conveyor belt, other conveyor belt), 16 ... Belt body, 17 ... Sponge member, 18 ... First front follower Pulley (Pulley) 20 First driving motor (belt driving means) 21 Second front driven pulley (pulley) 23 Second driving motor (belt driving means) 32 Bending portion 33 First conveying Path 34 Second conveying path 35 Curved guide (belt pressure contact amount adjusting means) 36 Belt support member 37 Storage section 38 Placement table 39 Abutment member 40 Guide member 40a Drooping part, 16a... Extended part.

Claims (8)

a traveling body that travels along rows of leeks cultivated in an array; a cutting mechanism that cuts the leeks at a predetermined height position; a conveying mechanism that conveys the leeks cut by the cutting mechanism in an upright state; A leek harvesting device comprising a storage unit for storing leeks transported by a transport mechanism,
The running body has an operation part for operating the running at a rear position,
The accommodation portion is provided on one side of the operation portion,
The cutting mechanism includes a disc-shaped cutter member that horizontally rotates around a rotating shaft that extends in the vertical direction, a cutter driving means that rotates the cutter member, and a cutter member that is adjusted and held at a predetermined height from the ground surface. and an adjusting means for
The conveying mechanism includes a pair of conveying belts that rotate endlessly with the conveying surfaces facing each other, and a belt driving means that drives the rotation of both conveying belts in synchronization,
Both conveying belts contact the conveying surfaces so as to be separated from each other, sandwich the cut leek between the conveying surfaces, and convey it in the rotating direction,
The transport mechanism includes another pair of transport belts that rotate in synchronization with the pair of transport belts downstream of the pair of transport belts in the transport direction,
The upstream end portions of the other pair of transport belts in the transport direction are positioned immediately above the downstream end portions of the pair of transport belts in the transport direction,
The other pair of transport belts receives and transports chives from the pair of transport belts above the pair of transport belts,
Each of the pair of transport belts and the other pair of transport belts includes a belt body that is stretched over a plurality of pulleys, and a sponge member provided around the entire outer peripheral surface of the belt body ,
The other pair of conveyor belts includes a bent portion that bends in a direction from the traveling direction of the traveling body toward the storage portion,
The bent portion is provided with belt pressure contact amount adjusting means for reducing the pressure contact force of both conveying belts against the chives passing through the bent portion,
The pressure contact amount adjusting means is configured to relax the pressure contact force by slidingly contacting the belt body of the one conveying belt passing outside the bent portion and pulling the one conveying belt in the outward direction of the bent portion. A leek harvesting device, characterized in that: 2. The leek harvesting apparatus according to claim 1, wherein the conveying mechanism comprises a guide member for guiding the leek along the conveying path of the leek. The belt driving means includes a first driving motor for driving rotation of one of the pair of transportation belts, and a second driving motor for driving rotation of the other transportation belt in synchronization with the first driving motor. 3. The chive harvesting device according to claim 1 or 2, further comprising two drive motors. The transport mechanism includes a guide member that guides the leek along the leek transport route,
the belt body of the conveying belt has an extended portion over the entire length that is extended upward by a predetermined dimension from the sponge member;
4. The guide member according to any one of claims 1 to 3, wherein the guide member has a hanging portion that hangs down between the leek conveying path and the expanded portion to prevent contact between the leek and the expanded portion during conveyance. Chinese chive harvesting device according to item 1. The pair of conveyor belts are respectively stretched over a plurality of pulleys,
5. The pulley over which one of the conveyor belts is stretched and the pulley over which the other conveyor belt is stretched are provided so as to be displaced from each other along the stretching direction. Chinese chive harvesting device according to claim 1. 6. The forward path of the pair of transport belts is provided with belt support members for supporting the respective transport belts at predetermined positions and guiding their rotation in the transport direction. Chinese chive harvesting device as described. The leek harvesting apparatus according to any one of claims 1 to 6, further comprising control means for synchronizing the conveying speed of the conveying mechanism and the traveling speed of the traveling body. Between the end of the transport path by the transport mechanism and the storage part, a storage part for temporarily storing the chives transported by the transport mechanism in an upright state is provided,
The storage unit includes a mounting table for placing the leeks in an upright state, and a contact member that contacts the leeks on the mounting table and maintains the leeks in the standing state,
The leek harvesting device according to any one of claims 1 to 7, wherein the contact member is provided so as to be movable on the mounting table according to the amount of leeks stored.

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