JP2813249B2 - Shearing equipment for nurseries - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to transplantation and cultivation of agricultural products.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leaf-shearing device for a nursery that cuts the seedlings such as onion paper-tube seedlings in a nursery container while aligning the heights of the leaves of the seedlings.

[0002]

2. Description of the Related Art Transplanting and cultivation of onion paper tube seedlings is carried out by filling the expanded paper tube seedling seedling containers with soil, sowing them in individual paper tubes one by one, covering the soil, placing them on a nursery, and raising seedlings. After raising the seedlings for a period, they are separated into individual paper tube seedlings and transplanted to the main field. And
In order to prevent the seedlings from being prolonged and falling down during the seedling raising period and to suppress the evaporation of water from the leaves immediately after transplantation, the leaves of the seedlings are cut at a predetermined length of about 15 to 20 cm. ing.

[0003] The leaves of the seedlings are cut with a hedge trimmer, scissors, sickle, brush cutter, or the like. The width of the nursery was usually about 2.4 m, and the nursery was handed over with a board so as not to damage the nursery, and was working on the hedge trimmer, scissors or scythe on the board. Also, when working with a brush cutter, the blade is far from the operator, so even if you work carefully, the height cannot be cut accurately, and the leaves of the seedlings may be cut too short to hinder growth. .

[0004] In transplantation and cultivation of sugar beet seedlings of sugar beet, seeds are sown in a plurality of grains in individual paper cylinders, and after seedling for a certain period of time, one seedling is produced in each paper cylinder. Is being done. As shown in Japanese Utility Model Application Laid-Open No. 59-4210, a pair of tires running on the left and right sides of the nursery, and a nursery between the pair of tires are used as a truck for carrying an operator for thinning work in the nursery. 2. Description of the Related Art There is known a work vehicle having a telescopic frame for connection and a top plate on which a worker is placed.

[0005]

Even when an operator rides on the top plate of the above-mentioned prior art working vehicle and cuts the leaves of the seedlings with a hedge trimmer, scissors or a sickle, a predetermined length is obtained. Cutting very accurately requires considerable attention and is inefficient.

[0006] Further, if the operator carries out the cutting operation with the hedge trimmer, scissors, sickle or the like for a long time, the fatigue of the operator increases.

[0007] Further, since the height cannot be cut accurately with a brush cutter, cutting is too short, which impairs growth.

[0008] The present invention provides a shearing device for a nursery, which cuts the leaves of a seedling accurately and efficiently to a predetermined length and reduces the fatigue of an operator, and greatly expands transplant cultivation. Aim.

[0009]

According to a first aspect of the present invention, there is provided a shearing device for a nursery, comprising a pair of wheels 3 traveling right and left of a nursery 41.
The machine frame 1 is provided on the nursery bed 41 between the pair of wheels 3, and the supporting rod 30 which moves up and down substantially in the center of the machine frame 1. The cutting blade 36, the prime mover 38 and the driving thereof are provided at the lower end of the supporting rod 30. A mechanism 40 is provided, and a cutting blade 36 is attached to the machine frame 1 by a support rod 30 so as to be vertically movable.

According to a second aspect of the present invention, the cutting blade 30 is long in the direction perpendicular to the traveling direction of the machine frame 1.
2. The device according to claim 1, wherein the upper surface is parallel to the upper surface.

According to a third aspect of the present invention, the cutting blade 36 is rotatably attached to the machine frame 1 by a support rod 30 provided at one end thereof, and can be fixed at a predetermined position. According to claim 1.

According to a fourth aspect of the present invention, the cutting blade 36 is attached to the machine frame 1 such that the longitudinal position of the cutting blade 36 can be adjusted.

[0015] In a fifth aspect of the present invention, in the shearing device for a nursery, the distance H between the pair of wheels 3 is adjustable.

[0014]

According to the first aspect of the present invention, a pair of wheels 3 running on the left and right sides of the nursery bed 41, the machine frame 1 on the nursery bed 41 between the pair of wheels 3, and the vertical movement of the machine frame 1 approximately in the center. The cutting blade 36, the prime mover 38 and its driving mechanism 40 are provided at the lower end of the supporting rod 30, and the cutting blade 36 is attached to the machine frame 1 by the supporting rod 30 so as to be vertically movable. The leaf portion 42 of P is cut at an arbitrary predetermined length.

According to the second aspect of the present invention, since the cutting blade 30 is long in the direction perpendicular to the traveling direction of the machine frame 1 and is parallel to the upper surface of the seedbed 41, the seedlings P above the cutting blade 36 are moved by the advance of the machine frame 1. Leaf
42 is cut evenly.

According to the third aspect of the present invention, the cutting blade 36 is rotatably mounted on the machine frame 1 by the support rod 30 provided at one end thereof and can be fixed at a predetermined position.
The leaf portion 42 of the seedling P of the seedbed 41 is cut so that the width of the seedbed 41 is twice as large as the length of the cutting blade 36 due to the reciprocation.

In the invention of claim 4, since the cutting blade 36 is attached to the machine frame 1 so that its longitudinal position is adjustable, the width of the seedbed 41 is slightly wider than twice the length of the cutting blade 36. However, the leaves 42 of the seedlings P in all the seedbeds 41 are cut off.

According to the fifth aspect of the present invention, since the distance H between the pair of wheels 3 is adjustable, the pair of wheels 3 can be moved close to the right and left of the nursery 41 even if the width of the nursery 41 is different.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

As a seedling P to be raised in the nursery 41, a paper tube seedling P of onions in a paper tube seedling growing container is shown. This paper tube nursery container is made of paper coated with a decay-resistant chemical, and is formed by adhering hexagonal column-shaped paper tubes that are opened at the top and bottom with water-soluble glue in an orderly manner. The soil is filled in the paper cylinder, and seeded into individual paper cylinders one by one to cover the soil to form a nursery bed 41. The size of one nursery bed 41 is about 30cm in length, about 1.2m in width,
The height is about 4 cm.

A large number of the seedbeds 41 are set up in a greenhouse 50 for raising seedlings.
And its leaves 42 become longer. Further, the water-soluble glue gradually dissolves by irrigation and maintains an appropriate connection strength at the time of transplantation.

The frontage of the greenhouse 50 is usually about 6 m, and the nursery bed 41 is installed in the greenhouse 50 by a paper tube nursery container. Open it as 51 and arrange it closely in two rows with a width of about 2.4 m. In addition, since the temperature near the both wall surfaces of the greenhouse 50 is low, the empty space 52 where the nursery 41 is not installed is used. Thus, the length of the nursery bed 41 is about 100 m for the seedlings P for 5 ha.

Next, a description will be given of a leaf-shearing device for cutting the seedlings P of the seedbed 41 with the same height of the leaves 42.

The shearing device includes a pair of wheels 3 running on the left and right of the nursery bed 41 and a machine frame 1 on the nursery bed 41 between the pair of wheels 3.
Then, a cutting blade 36 is provided below the machine frame 1.

The machine casing 1 is provided with two long rectangular steel pipes extending in parallel from the passage 51 to the empty space 52 above the nursery bed 41 and connecting both ends to form a frame. The machine frame 1 is parallel to the upper surface of the nursery bed 41, and a pair of wheel frames 2 each having an inverted L-shape in front view are provided at both ends of the machine frame 1.
The wheel frame 2 fits into the end of the machine frame 1, and the amount of fit is adjustable and fixable.
The lower part of the wheel frame 2 is a horizontally long wheel lower frame 2a orthogonal to the longitudinal direction of the machine frame 1, and a wheel yoke 2b is provided below both ends of the wheel lower frame 2a.

The wheel yoke 2b is provided with a wheel 3 which rotates in the longitudinal direction of the wheel lower frame 2a.
It is locked so that it can rotate freely by a pin 4 fitted through 2b. The outer periphery of the wheel 3 is provided with a recess 3a that fits into the rail 54. The distance H between the pair of wheels 3 at both ends of the machine frame 1 is adjustable by changing the amount of the wheel frame 2 fitted.

A moving frame 6 is provided substantially at the center of the machine frame 1, and the position of the moving frame 6 in the longitudinal direction of the machine frame 1 can be adjusted and fixed by screwing.

A support frame 11 is provided on the moving frame 6, and a long supporting rod 30 of a round steel tube is provided vertically through the moving frame 6 and the supporting frame 11. The support rod 30 is locked so as to freely rotate in the horizontal direction and freely move up and down in the vertical direction.

The vertical movement mechanism 10 is provided in the support frame 11 on the moving frame 6.
Is provided. The vertical movement mechanism 10 has a round steel tubular vertical movement frame 12 fitted around the outer periphery of the support rod 30 so as to freely rotate, and a vertically long rack gear 13 on the front side of the vertical movement frame 12. An axis of approximately the same length as the machine frame 1 parallel to the machine frame 1 through the support frame 11
The pinion gear 14 is fitted on the shaft 15, and the pinion gear 14 and the rack gear 13 are engaged with each other. A pin 31 is provided at the upper end of the vertical moving frame 12 so as to pass through the support rod 30 in the horizontal direction.
The lower surface of the base 31 abuts on the upper end of the vertical moving frame 12 so that when the vertical moving frame 12 moves up and down, the support rod 30 also moves up and down, so that even when the support rod 30 rotates, the vertical moving frame 12 does not rotate. I do. When the shaft 15 rotates, the vertical moving frame 12 moves up and down,
30 moves up and down.

A pair of bearing frames 5 are provided above both ends of the machine frame 1, and the bearing frames 5 support both ends of the shaft 15. A pair of disks 16 fitted and fixed to the shaft 15 is provided directly inside the bearing frame 5, and a plurality of bosses 17 are provided radially inside the disk 16.
Immediately inside the bearing frame 5, although not shown, a braking device that contacts the outer periphery of the disk 16 is provided to prevent the support rod 30 from moving up and down due to its own weight or the like. The boss 17 is provided with a lever 18 which can be fitted into the boss 17 from the outside.
Rotates.

A rotation mechanism 20 is provided on the support frame 11. The turning mechanism 20 is provided with a round steel tubular turning frame 21 which is mounted on the support frame 11 and fitted on the outer periphery of the support rod 30 so as to freely move up and down.
Long holes 22 are provided vertically on the front side and the back side of the rotating frame 21. A pin 32 is provided in the long hole 22 so as to pass through the support rod 30 in the horizontal direction, so that when the rotation frame 21 rotates, the support rod 30 also rotates. Should not move up and down due to its own weight.

The lower part of the rotary frame 21 is a horizontal disk-shaped rotary disk frame 21a, and a pair of upright pieces 23 is provided on the rotary disk frame 21a in the direction of both wheel frames 2. A pair of levers 24 are provided from the standing piece 23 in the direction of the wheel frame 2, and one end of the lever 24 is
The pin 25 can be freely rotated in the up-down direction by the pin 25 which is inserted horizontally and is locked so as not to move in the other direction. When the lever 24 is turned in the horizontal direction, the turning frame 21 and the support rod 30 are turned together.

A pair of lever supports 26 are provided on the support frame 11 in the direction of the wheel frame 2 on the outer side of the rotating disk frame 21a. Place 26
a is provided. Lever 24 is recessed 26 in lever receiver 26 by its own weight.
When it is stuck in a, it cannot be rotated in the horizontal direction. When the pair of levers 24 is lifted by hand and detached from the recess 26a, it can be freely rotated.

A bracket 34 is provided at the lower end of the support rod 30 below the machine frame 1, and an elongated cutting blade frame 35 is provided parallel to the machine frame 1 in the direction of the wheel frame 2 on one side from the bracket 34. On the lower surface of the cutting blade frame 35, two thin and long cutting blades 36 are provided one on top of the other, and the cutting blade 36 is provided with a mountain blade 36a protruding in one horizontal direction orthogonal to the longitudinal direction thereof. 36a is a cutting blade 36
Are arranged in the longitudinal direction. That is, the cutting blade 36 is long in the direction orthogonal to the traveling direction of the machine frame 1 and is parallel to the upper surface of the nursery bed 41. The length of the cutting blade 36 is set to 1.2 m, which is half the width of the seedbed 41 installed. The cutting blade 36 is mounted on the cutting blade frame 35 so as to be able to reciprocate a predetermined distance in the longitudinal direction, and the two cutting blades 36 reciprocate in opposite directions to each other. Cut 42.

An auxiliary rod 37 is provided at the tip of the cutting blade frame 35 from above the bracket 34 of the support rod 30, and the cutting blade frame 35 and the cutting blade
Prevent bending and deflection of 36.

The motor frame 33 is provided on the opposite side of the support rod 30 from the auxiliary rod 37.
The motor frame 33 has a cutting edge with its shaft end facing downward.
A motor 38 as a prime mover 36 is attached. A drive mechanism 40 for reciprocating the cutting blade 36 by a crank mechanism is provided below the shaft end of the motor 38, and the motor 38 and the drive mechanism 40 are connected by a shaft coupling.
When the electric motor 38 rotates, the cutting blade 36 reciprocates. Although not shown, electric wires and appropriate switches are connected to the electric motor 38.

Next, the method of use will be described.

Passageway 51 and both vacancies in the greenhouse 50
An elongated plate 53 is laid on the nursery 41 of the 52, and a rail 54 on which an equilateral angle iron is laid is laid thereon. The height of the rails 54 is made as horizontal as possible, and the intervals between the rails 54 are made as uniform as possible.

The distance H between the pair of wheels 3 is adjusted to the distance between the rails 54 by adjusting the amount of the wheel frame 2 fitted into the machine frame 1.

The nursery bed 41 on which the shearing device is installed is placed on a rail 54 at one end in the longitudinal direction of a desired row, and the cutting blade 36 is moved in the traveling direction.
The mountain blade 36a is turned around the support rod 30 by a pair of levers 24 so that the tip of the mountain blade 36a faces and fixed. Nursery with cutting blade 36
The height from 41 is adjusted according to the cutting length of the leaf part 42.
Rotate to adjust. If the tip of the cutting blade 36 is a nursery
If it does not fit the end of 41, the moving frame 6 is moved along the machine frame 1 and adjusted.

When the electric motor 38 is turned on and the cutting blade 36 is reciprocated and the operator pushes the machine frame 1, the leaves 42 of the seedlings P above the cutting blade 36 are cut. The operator adjusts the work as appropriate while watching the cutting status and performs the work.

When the end of the row of the seedbed 41 is reached on the opposite side in the longitudinal direction, the work is interrupted, and the cutting blade 36 is rotated by 180 degrees about the support rod 30 by the pair of levers 24 and fixed, and the return cutting work is performed. To continue.

If the nursery bed 41 is wide and there is any uncut in the reciprocating cutting operation, the seedbed with the uncut portion of the cutting blade 36 left uncut.
After moving the moving frame 6 along the machine frame 1 so as to match the end of the 41, the remaining cutting work is performed.

In the above embodiment, the cutting blade 36 is a mountain blade 36
a is arranged in the longitudinal direction and reciprocated.
Any material that can cut the leaf portion 42 of the seedling P, such as a rotary blade, may be used.

Also, the vertical movement mechanism 10 for the cutting blade 36 is described as one in which the lever 18 is manually rotated by the rack gear 13 and the pinion gear 14, but an appropriate method such as an electric cylinder may be used.

Although the rotating mechanism 20 of the cutting blade 36 has been described to rotate the pair of levers 24 by hand, an appropriate method such as a method using an electric motor and an electromagnetic brake may be used.

Although the rotation of the cutting blade 36 is fixed by fixing the rotation of the support rod 30, the tip of the cutting blade 36 may be fixed.

Although the example in which the operator performs the cutting operation by pushing the machine frame 1 has been described, the traveling may be performed by transmitting appropriate power to the wheels 3.

Also, an example has been shown in which the rails 54 are laid in the passages 51 and both cavities 52. However, the rails 54 are laid only in the passages 51, and the wheels 3 of the vacancies 52 run on the plate 53. Is also good.

[0050]

According to the first aspect of the present invention, the cutting blade is mounted on the machine frame by the support rod so as to be vertically movable. Can be easily cut at a predetermined length. Further, since the cutting blade, the prime mover and the drive mechanism are provided at the lower end of the support rod, they can be moved up and down integrally, and can be easily moved up and down without complicating the drive mechanism.

According to the second aspect of the present invention, since the cutting blade is long in the direction orthogonal to the traveling direction of the machine frame and parallel to the upper surface of the nursery, the distance from the upper surface of the nursery to the cutting blade is constant, and the operator's The leaves of the seedlings above the cutting blade can be cut accurately and evenly by the advance of the machine frame without relying on attention. Further, since the leaves corresponding to the length of the cutting blade are cut at a time, the cutting operation can be performed efficiently.

According to the third aspect of the present invention, the cutting blade is rotatably attached to the machine frame by the support rod provided at one end thereof.
And since it can be fixed at a predetermined position, the width of the seedbed can be cut to twice the width of the cutting blade, and the leaves of the seedling can be cut only by turning the cutting blade and reciprocating the machine frame. The cutting work of a large area can be easily cut with a cutting blade having a length.

According to the fourth aspect of the present invention, since the cutting blade is attached to the machine frame so that its longitudinal position can be adjusted, the width of the seedbed is reduced by the longitudinal movement of the cutting blade. Even if the width of the seedlings is slightly larger than twice, the leaves of all the seedlings can be cut. Even if the width of the seedling beds is different, the cutting operation of a short area can be easily performed with a cutting blade having a short length.

According to the fifth aspect of the present invention, since the distance between the pair of wheels is adjustable, the pair of wheels can be moved near the left and right of the nursery even if the width of the nursery is different. Suitable for nurseries installed in

[Brief description of the drawings]

FIG. 1 is a front view showing one embodiment of a shearing device for a nursery.

FIG. 2 is a plan view thereof.

FIG. 3 is a side view thereof.

FIG. 4 is a front view installed in the greenhouse.

FIG. 5 is a front view in which the cutting blade is moved upward.

FIG. 6 is a plan view of the cutting blade being rotated.

FIG. 7 is a plan view in which the cutting blade is rotated and fixed.

FIG. 8 is a front view in which the cutting blade is moved in a longitudinal direction to widen a distance between a pair of wheels.

FIG. 9 is a partial front view showing the vertical movement mechanism and the rotation mechanism.

FIG. 10 is a partial side view showing a lever of the vertical movement mechanism.

FIG. 11 is a partial front view showing the wheel.

FIG. 12 is a partial side view showing the rotation mechanism.

FIG. 13 is a partial plan view showing the cutting blade.

[Description of Signs] 1 Machine frame 3 Wheels 30 Supporting rod 36 Cutting blade 38 Electric motor as prime mover 40 Drive mechanism 41 Nursery bed H Wheel spacing

Claims (5)

(57) [Claims] 1. A pair of wheels traveling left and right of a nursery, a machine frame on the nursery between the pair of wheels, and a supporting rod that moves up and down substantially in the center of the machine frame, and a lower end of the supporting rod is cut off. A cutting blade for a nursery, comprising a blade, a motor and a driving mechanism thereof, and a cutting blade mounted on a machine frame by a support rod so as to be vertically movable. 2. The shearing device for a nursery according to claim 1, wherein the cutting blade is long in a direction perpendicular to the traveling direction of the machine frame and parallel to the upper surface of the nursery. 3. The shearing device for a nursery according to claim 1, wherein the cutting blade is rotatably attached to the machine frame by a support rod provided at one end thereof and can be fixed at a predetermined position. 4. The cutting blade for a nursery according to claim 1, wherein the cutting blade is attached to the machine frame so that its longitudinal position can be adjusted. 5. The shearing device for a nursery according to claim 1, wherein the distance between the pair of wheels is adjustable.