JP3099669U - Vegetable harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a self-propelled vegetable harvesting machine with a simple structure that allows a worker to follow a machine body without stepping on spinach whose root has been cut without stepping on the machine body.
SOLUTION: The vegetable harvester 1 is configured by connecting a root cutting unit 20 to a traveling unit 10. The root cutting unit 20 includes a root cutting blade 23 for cutting the roots of vegetables such as spinach, a sled 27 for supporting a part of the weight of the machine, and a guard 40 for preventing unharvested vegetables from contacting the machine. . The inside of the front end of the guard 40 is inclined rearward, and acts on the vegetables whose roots have been cut by the root cutting blades 23 to serve as a guide toward the center. The entanglement between the leaves of the spinach is loosened by a weeding rod 33 that vibrates integrally with the root cutting blade 23.
[Selection diagram] Fig. 1

Description

Detailed description of the invention

The present invention relates to a vegetable harvester for cutting the roots of leafy vegetables such as spinach and komatsuna.

Conventionally, leafy vegetables such as spinach and komatsuna have been collected by cutting the root slightly below the ground with a sickle. However, cutting a large amount of vegetables manually with a sickle is a very difficult task for the worker, and the working efficiency is low.

近年 In recent years, there has been proposed an automated one in which vegetables such as spinach are cut and picked up by a self-propelled harvester and collected, but the structure is complicated and the price becomes considerably high. Further, in this harvester, the traveling wheels are passed between the rows of spinach so that the traveling wheels do not step on the spinach. However, it is difficult to run the harvester without stepping on the spinach with running wheels in a field where the spinach is planted with a line spacing different from the standard, or in a field where spinach is scattered in a strewn manner.

Issues that the device is trying to solve

The present invention has been made in view of the above-mentioned problems of the related art, and has a purpose of being simple in structure and being placed on the ground in a state where a root is cut by a cutting blade. An object of the present invention is to provide a self-propelled vegetable harvest that can run on spinach without running wheels or sleds, and that allows an operator to walk from behind the aircraft without stepping on its feet.

Means to solve the problem

In order to achieve the above object, the vegetable harvester of the present invention includes a traveling unit and a root cutting unit connected to the traveling unit. The traveling unit includes traveling wheels, a drive source for driving the traveling wheels, and a handle. On the other hand, the root cutting unit is provided with a cutting blade for cutting the roots of vegetables, having a length substantially equal to the width thereof, a vibration mechanism for vibrating the cutting blade to the left and right, and driving the vibration mechanism. Drive, a sled that supports a part of the weight of the fuselage, a guide for bringing the spinach whose root has been cut by the cutting blade to the center, and further extends toward the front of the fuselage and is integrated with the root cutting blade. And a weeding rod that vibrates.

The vegetable harvester according to the present invention can have the following configurations.
A guard was provided on both sides of the body of the vegetable harvester to protect unharvested vegetables from coming into contact with the body, and the inside of the front part of the guard was inclined backward to cut the root with a cutting blade. Use as a guide to bring the spinach to the center.
A sled that supports a part of the weight of the body is attached to a tip of a support leg rotatably attached to a spindle provided on a machine frame of the root cutting unit. Then, the height of the sled with respect to the machine frame is adjusted by restricting the rotation of the support legs with respect to the machine frame.

A vegetable harvesting machine 1 for harvesting leafy vegetables such as spinach and komatsuna (hereinafter, represented by spinach) includes a traveling unit 10 having a mechanism for self-propelling the vegetable harvesting machine 1 provided in a machine frame, and a traveling unit 10. And a root cutting unit 20 provided on a machine frame and having a cutting blade for cutting the root of the spinach S and a vibration mechanism for vibrating the cutting blade.

In the machine frame of the traveling unit 10, one rotating shaft (drive shaft) 12 driven by a motor powered by a battery 11 via a power transmission mechanism (not shown), and a rotating shaft 12 parallel to the rotating shaft. An axle (driven shaft) 14 is rotatably mounted. The battery 11 is mounted behind this machine frame.

小 A small-diameter pulley 15 is fixed to both ends of the rotating shaft 12. The large-diameter traveling wheels 13 are fixed to both ends of the axle 14. An endless rubber crawler 16 is stretched between the pulley 15 and the traveling wheel 13.

(4) Irregularities are formed at a predetermined pitch on the entire inner and outer surfaces of the rubber track 16. On the other hand, on the outer surface of the pulley 15 fixed to the rotating shaft 12 and on the outer surface of the traveling wheel 13 fixed to the axle 14, irregularities having the same pitch as the inner irregularities of the rubber track 16 are formed over the entire area. . Therefore, the rotation of the pulley 15 is reliably transmitted to the traveling wheel 13 via the rubber track 16. Further, the unevenness on the outside of the rubber track 16 acts on the ground to prevent the traveling wheel 13 from slipping. Therefore, the traveling performance of the left and right traveling wheels 13 becomes equal, so that the body of the vegetable harvesting machine 1 easily travels straight.

ハ ン ド ル Furthermore, a handle 17 is attached to the rear of the machine frame of the traveling unit 10. The worker follows the self-propelled vegetable harvesting machine 1 while hanging his hand on the handle 17. If the vegetable harvesting machine 1 comes off the straight course, the handle 17 is moved by hand to move the traveling vegetable harvesting machine 1. To the original course.

The machine frame of the traveling unit 10 is connected to the machine frame of the root cutting unit 20. The lateral width of the machine frame of the traveling unit 10 and the lateral width of the machine frame of the root cutting unit 20 are the same as shown in FIG.

The root cutting unit 20 includes a machine frame 20A and a vibration frame 20B attached to the machine frame 20A so as to be able to vibrate in the left-right direction. A vibration mechanism 21 for reciprocating the vibration frame 20B in the left-right direction and a motor 22 as a drive source for driving the vibration mechanism 21 are attached to the machine frame 20A.

The vibration frame 20B includes a vibration frame 30A in which two upper and lower horizontal members 31 and two left and right vertical members 32 are assembled in a rectangular frame shape, and a bottom portion and side portions extending upward from both left and right ends of the bottom portion. And a U-shaped cutting blade member 30B. A root cutting blade 23 for cutting the root of spinach is formed at the bottom of the cutting blade member 30B. By fixing the upper ends of the left and right sides of the cutting blade member 30B to the lower portions of the left and right vertical members 32 of the vibration frame 30A, the cutting blade member 30B and the vibration frame 30A become an integrated structure as the vibration frame 20B. ing.

Further, from one or both of the left and right vertical members 32 constituting the vibration frame 30A, a weeding rod 33 extends obliquely toward the front in the vehicle body traveling direction, and the free end of its tip extends close to the ground GL. Has reached. The weed rod 33 is coated with Teflon (registered trademark).

The left and right vertical members 32 of the vibration frame 30A are provided with two pins 34 projecting toward the center, respectively, and these pins 34 are inserted into guide tubes 35 provided on the fixed frame 20A. Thereby, the vibration frame 30A (that is, the vibration frame 20B) can reciprocate left and right with respect to the fixed frame 20A.

One of the left and right vertical members 32 constituting the vibration frame 30A is connected to the vibration mechanism 21. Therefore, the rotation of the drive motor 22 is transmitted to the vibration frame 30A via the vibration mechanism 21, and can vibrate the vibration frame 20B in the left-right direction.

As the root cutting blade 23 for cutting the root of the spinach S, a single blade having a length equal to the width of the root cutting unit 20 is used. The example in FIG. 2 illustrates that four spinachs arranged sideways are advanced by the root cutting blade 23 while performing the root cutting operation. When the spinach is close to each other as shown in FIG. 2, the adjacent spinach is difficult to separate because the leaves are entangled with each other.

根 The roots of spinach S should be cut at a position just below the ground. Therefore, a sled is attached to the machine frame of the root cutting unit 20 so that the root cutting blade 23 of the root cutting unit 20 is always at the cutting position, and the sled stabilizes the position of the body of the vegetable harvesting machine 1 with respect to the ground. Let me. The attachment of the sled to the machine frame will be described below.

(4) The upper ends of the substantially L-shaped support legs 25 are rotatably mounted on the first support shafts 24 protruding from the left and right sides of the machine casing 20A of the root cutting unit 20. On the other hand, a second support shaft 26 is protruded from the lower end of the support leg 25, and a sled 27 is rotatably attached to the second support shaft 26.

Further, the adjusting bolt 29 is screw-engaged with the L-shaped member 28 fixed to the machine frame 20A of the root cutting unit 20. The tip of the adjusting bolt 29 comes into contact with the support leg 25 and regulates the rotation of the support leg 25 in the direction in which the sled 27 floats. By turning the adjustment bolt 29 to increase the amount of tip protrusion from the L-shaped member 28, the sled 27 is held at a position lowered from the machine frame 20A. As a result, since the root cutting blade 23 is located at a position higher than the sled 27, the root of the spinach S is cut at a shallower position in the ground. On the other hand, if the adjustment bolt 29 is turned to reduce the amount of tip protrusion from the L-shaped member 28, the sled 27 is held at a position raised with respect to the machine frame 20A. As a result, since the root cutting blade 23 is located at a position lowered relative to the sled 27, the root of the spinach S is cut at a deeper position in the ground.

On the left and right sides of the body of the vegetable harvester 1, that is, on both the left and right sides from the root cutting unit 20 to the traveling unit 10, as shown by phantom lines in FIG. A guard 40 having substantially the same length and a predetermined height is attached. Each guard 40 has a structure in which an outer plate 40a and an inner plate 40b are opposed to each other at a predetermined interval.

The front end of the guard 40 is located immediately behind the left and right ends of the root cutting blade 23 as shown in FIG. The running wheel 13 and the sled 27 are arranged in a space sandwiched between the outer plate 40a and the inner plate 40b. Therefore, the outer plate 40a serves to protect the unharvested spinach from the body of the vegetable harvester 1.

On the other hand, as shown in FIG. 2, the front portion 41 of the inner plate 40b is inclined rearward and inward. Therefore, the spinach whose root has been cut by the root cutting blade 23 and left as it is on the ground is guided by the front portion 41 of the inner plate 40b and is brought toward the center of the fuselage. That is, the front portion 41 of the inner plate 40b serves as a guide for bringing the left and right sides of the spinach S, which has been cut off by the root cutting blade 23 and placed on the ground, to the center. Further, the central portion and the rear portion of the inner plate 40b serve to prevent spinach whose root has been cut by the root cutting blade 23 and placed on the ground from contacting members such as the traveling wheel 13 and the sled 27. .

In the field where the spinach S is planted, when the motor 22 of the vegetable harvester 1 according to the present invention is activated to oscillate the root cutting blade 23, and the battery 11 is turned on to rotate the traveling wheel 13, the spinach harvesting operation is performed. Is started. The operator walks after the self-propelled vegetable harvester 1 while holding the handle 15 and operates the handle to return to the original course when the machine starts to fall off the straight course.

ほ う The spinach S, whose root has been cut by the root cutting blade 23 that vibrates right and left at high speed, is left on the ground in the same posture. Among them, the spinach in contact with the front part 41 of the inner plate 40b constituting the guard 40 is guided by the front part 41 and brought to the center. Therefore, in the trace where the vegetable harvesting machine 1 has passed, a band-like region where no spinach is present is always formed on the left and right sides of the machine body. The width of the band-shaped region is substantially equal to the distance between the outer plate 40a and the inner plate 40b that constitute the guard 30. Therefore, the sled 27 and the traveling wheel 13 (rubber crawler 16) disposed between the outer plate 40a and the inner plate 40b do not step on the spinach placed on the ground. That is, the sled 27 and the traveling wheel 13 (rubber crawler 16) are configured to pass through a belt-shaped area where no spinach S exists.

If the worker walks on the vegetable harvesting machine 1 in the belt-shaped area where the root-cut spinach S does not exist, the worker can perform the harvesting work without stepping on the spinach S with his feet.

When the vegetable harvester 1 advances, the tip of the weeding rod 33 separates between the spinach to be harvested in this advance and the next non-harvesting spinach, as shown in FIG. . The weeding rod 33 divided between the spinach and the spinach vibrates right and left with the vibrating frame 30A at the same time as it advances, so that the entanglement between the spinach leaf and the adjacent spinach leaf is completely unraveled. As a result, the spinach whose root has been cut off by the root cutting blade does not become entangled with the adjacent unharvested spinach and is not likely to be separated from the unharvested spinach. Therefore, the front of the inner plate 40b constituting the guard 40 is prevented. It can move while being smoothly guided by the section 41. If this weeding rod 33 is coated with Teflon (registered trademark), the slip is improved, and the entanglement between the spinach leaf and the adjacent spinach leaf can be more easily disentangled.

FIG. 2 shows an example in which weeding rods 33 are attached to the left and right of the vibration frame 30A. Therefore, for example, the right weeding rod 33 functions in the harvesting operation on the outward path, and the left weeding rod 33 functions in the return path. However, when performing the turning operation, the weeding rod 33 may be attached to only one of the right and left sides of the vibration frame 30A.

で は In the illustrated embodiment, a rubber crawler is used for traveling of the vegetable harvester, but ordinary wheels may be used without using such endless belts.

The effect of the invention

According to the vegetable harvester according to the present invention, the structure is simple, the running wheels and sleds can run on the spinach whose roots have been cut and placed on the ground without stepping on, and the worker can walk without stepping on. it can.
Furthermore, since the entanglement between the root-cut spinach and the adjacent root that is not cut is released with a weeding rod, when the root-cut spinach is brought to the center, the next unharvested spinach There is no fear that it will be hindered by the separation.

It is a side view of the vegetable harvester according to the present invention. FIG. 3 is a top view of the vegetable harvester according to the present invention. FIG. 3 is a rear view of the vegetable harvester according to the present invention.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Vegetable harvester 10 Traveling unit 13 Traveling wheel 17 Handle 20 Root cutting unit 23 Root cutting blade 27 Sled 30A Vibration frame 33 Weeding rod 40 Guard

Claims (3)

It is composed of a traveling unit and a root cutting unit connected to the traveling unit,
The traveling unit includes traveling wheels, a drive source for driving the traveling wheels, and a handle,
The root cutting unit has a length substantially equal to its width, a root cutting blade for cutting vegetable roots, a vibration mechanism for vibrating the root cutting blade to the left and right, and a driving mechanism for the vibration mechanism. Drive source, a sled for supporting a part of the weight of the fuselage, a guide for bringing at least a part of the spinach whose root has been cut by the root cutting blade to the center, and further, toward the front of the fuselage. A weeding rod that extends and vibrates integrally with the root cutting blade,
Vegetable harvester. A guard for protecting unharvested vegetables from contacting the machine body was provided on both the left and right sides of the machine of the vegetable harvester, and the guide was formed by inclining the inside of the front part of the guard toward the rear. The vegetable harvester according to claim 1. The sled is attached to a tip of a support leg rotatably mounted on a support shaft provided on a machine frame of the root cutting unit, and regulates a height of the sled with respect to the machine frame and a rotation of the support leg with respect to the machine frame. The vegetable harvester according to claim 1, wherein the vegetable harvester is adjusted by performing the adjustment.

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