JPH06261605A - Vegetable transplanter - Google Patents

Abstract

PURPOSE:To enable secure supply of released seedlings to a seedling planting unit by making it possible to give moment of rotation to the seedlings when the seedlings are released from a seedling take-out unit. CONSTITUTION:A seedling push-out member 45 equipped with a ring-shaped push piece 45a is attached to the top part of a pair of left and right seedling take-out tines 10a and 10b of a seedling take-out unit. The seedlings are taken out by striking the top parts of the seedling take-out tines into the seedlings while closing them. The taken-out seedlings are then released by pushing down the seedling push-out member 45 while opening the top parts of the seedling take-out tines. The left and right tines 10a and 10b have each a twisted shape and are arranged in a mutually somewhat inclined state in parallel. Since the left and right tines constitute a spiral structure, the seedlings receive moment of rotation while being pushed down. The seedlings are, therefore, rotated while being released.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vegetable transplanter capable of sequentially transplanting pot seedlings from a seedling feeding device to a field.

[0002]

2. Description of the Related Art Conventionally, in a vegetable transplanter, a pair of seedling take-out claws are configured to reciprocate and swing, and the tip of the seedling take-out claws is inserted into the seedling tray side to stab pot seedlings. The seedlings are picked up while being sandwiched, and the seedlings are inherited and supplied to the hopper-shaped planting claws arranged below the lowest point of the claws for taking out the seedlings. There is.

When supplying seedlings from the seedling take-out nails to the seedling-planting nails, the tip of the seedling take-out nails is kept open, and
The tip of the seedling pushing member attached to the planting claw is pushed down toward the tip of the seedling take-out claw to release the seedling.

[0004]

However, as described above, the released seedlings can be surely inserted into the seedling-planting nails only by keeping the tip of the seedling take-out nail open and pushing down the seedling pushing member. Instead, it could cause a porting error.

That is, when the seedling take-out claws sandwich a position deviated from the center of gravity of the pot seedlings, when released, the seedlings are greatly tilted in the seedling-planting claws, and sometimes they are in a recumbent state. Therefore, it may not be transplanted to a predetermined place in the field in a timely manner.

[0006] This makes it impossible to transplant seedlings reliably and efficiently.

Therefore, in order to prevent the above-mentioned planting mistakes, fine adjustment must be performed so that the seedling take-out nail surely pierces the vicinity of the center of gravity of the seedling, and such fine adjustment is very troublesome for the user. Met.

An object of the present invention is to provide a vegetable transplanter which can solve the above problems.

[0009]

According to the present invention, a seedling feeding device, a seedling planting device, and a seedling removing device are provided, and a seedling taking claw provided in the seedling taking device is used to remove seedlings from the seedling feeding device. In a vegetable transplanter that takes out and releases / supplies to the seedling planting device side for transplanting seedlings, the seedling extraction device that takes out, releases and supplies seedlings rotates with respect to the seedlings when releasing the seedlings. An object of the present invention is to provide a vegetable transplanter characterized by being configured to give a moment.

[0010]

Embodiments of the present invention will be specifically described below with reference to the accompanying drawings.

FIG. 1 is an overall side view of a vegetable transplanting machine according to the present invention, FIG. 2 is an explanatory view of the same in plan view, FIG. 3 is an explanatory view of its essential parts, and FIGS. 4 and 5 are explanatory views of a seedling take-out nail. FIG. 6 is an explanatory diagram showing a state in which seedlings are supplied from the seedling take-out nails to the seedling-planting nails.

As shown in FIG. 1, the vegetable transplanter A has an engine 2 mounted on a front frame 1 and a mission case 3 connected to the rear end of the front frame 1.

The transmission case 3 is provided with left and right rear wheels 5 as driving wheels which are supported by a left and right transmission case 4 so as to be vertically swingable. Reference numerals 6 are left and right front wheels mounted on the front end side of the front frame 1 through an axle frame 7 so as to be vertically swingable.

In the rear of the mission case 3,
A seedling feeding device a having a seedling mounting table 12 is arranged via a chassis frame 8, and a seedling planting device b is arranged between the left and right rear wheels 5.

The seedling planting device b is attached to the mission case 3 via the planting transmission case 9, and is a multi-cutter 14 and a hopper type planting claw that moves up and down in conjunction with the multi-cutter 14. It consists of 15. Reference numeral 11 denotes a gauge wheel that supports the seedling planting device b so as to be vertically swingable.

Further, above the seedling planting device b, a seedling take-out device c for taking out the seedlings from the seedling tray 13 of the seedling feeding device a and supplying them to the seedling planting device b is arranged.

Then, a pair of seedling take-out claws 10 provided in the same seedling take-out device c take out one pot of potted seedlings from the seedling tray 13 on the seedling placing table 12 which reciprocates left and right of the seedling feeding device a,
The pot seedlings taken out are discharged and supplied to the seedling-planting claws 15 of the seedling-planting apparatus b, and the ridge surface G is generated while the machine body is running by operating the steering handle 16 which is continuously provided at the rear end of the chassis frame 8. The pot seedlings are transplanted at regular intervals.

In FIG. 1, 21 is a lifting lever, 22 is a planted clutch lever, 23 is a main gear shift lever, 24 is a stock shift lever, 25 is a planting depth adjusting lever, 26 is a left and right side clutch lever, 27 Is a crushing roller for crushing the ridge surface G.

Incidentally, as shown in FIG. 3, the seedling supplying device a includes a seedling vertical feeding mechanism 18 including a vertical feeding chain 17 and the like arranged on the left side of the seedling placing table 12 in addition to the seedling placing table 12. , Seedling stand 12
Seedling table lateral feed mechanism consisting of a transport shaft 19 etc. arranged in the rear part
20 and the seedling stand 12 can be reciprocated left and right,
At the end of the lateral movement of the seedling placing table 12, the seedling tray 13 placed on the same seedling placing table 12 is vertically fed. In addition,
The seedling platform horizontal feed mechanism 20 is interlockingly connected to the lateral feed drive case 38 arranged on the right side of the seedling platform 12.

The drive of each mechanism of the seedling supplying device a is based on the output from the engine 2. As shown in FIG. 2, the output of the engine 2 is the output from the mission case 3 and
It is transmitted to the seedling supply device a via the driving force transmission mechanism 30.

The structure of the driving force transmission mechanism 30 is as shown in FIG. 2, 31 is a planted clutch case which is arranged above the mission case 3 and has a built-in clutch, 32 is a continuously variable transmission belt, 33 Is a speed change pulley, and 34 is a transmission chain, which interlocks the output shaft 3a of the mission case 3 and the input shaft 31a of the planted clutch case 31.

Further, 31b is an output shaft of the planted clutch case 31, and a counter shaft 36 is rotatably connected to the output shaft 31b via a first transmission chain 35 for the seedling feeding device and the counter is also provided. Axis 36 is the second transmission chain for seedling feeder
It is interlockingly connected to the input shaft 38a of the lateral feed drive case 38 via 37.

On the other hand, as shown in FIG. 3, the seedling take-out device c connects and supports a pair of left and right seedling take-out pawls 10 and the seedling take-out pawls 10 via a rotary case 40, a crank arm 41, and a cam shaft 42. And a arm guide plate 44 that guides the seedling taking-out arm 43 to the seedling taking-out position and the seedling releasing position when the crank arm 41 rotates.

A seedling pushing member 45 having a ring-shaped pushing seat 45a at its tip is attached to the pair of left and right seedling picking nails 10 so that the seedlings can be smoothly discharged.

Further, the cam shaft 42 is provided with a pair of claw cams 46 for opening and closing the tips of the pair of left and right seedling picking nails 10 and pushing down the seedling pushing member 45.

Then, the seedling take-out pawl drive shaft 47 interlockingly connected to the output shaft 31b of the planting clutch case 31 in the driving force transmission mechanism 30 is interlockedly connected to the rotary case 40 to operate the seedling take-out pawl 10. The pot seedlings are taken out from the seedling tray 13 on the seedling placing table 12, and the taken out pot seedlings are discharged and supplied to the seedling planting claws 15 of the seedling planting device b.

At this time, when the seedling take-out nail 10 takes out the seedling, the tip of the seedling take-out nail 10 is closed and pierced and pinched by the seedling, and when it is released, the tip of the seedling take-out nail 10 is opened and the seedling The push-out member 45 is pushed down to smoothly release the seedlings.

In the vegetable transplanter A constructed as described above, the gist of the present invention is that the seedling take-out device c for taking out, releasing and supplying the above-mentioned seedlings is applied to the seedlings when releasing the seedlings. It is configured so that a rotation moment can be applied.

That is, in this embodiment, as shown in FIGS. 5 and 6, the left and right claws 10a and 10b of the pair of seedling take-out claws 10 provided in the seedling take-out device c are formed in a twisted state. The right and left claws 10a, 10b by juxtaposing each other in a slightly oblique state.
Has created a spiral structure.

Therefore, as shown in FIG. 4, when the seedling extruding device c is pushed down to push out the seedlings, the seedlings are pushed downward by the spiral structure of the seedling take-out claws 10 and are rotated downward while receiving a rotational moment. It is rotating and is released while rotating even when it is separated from the tip of the seedling picking nail 10.

This serves as a so-called shuttle effect to improve the straightness of the released seedlings and to ensure that the seedlings are planted in the seedling plant b.
Will be supplied within.

The seedling extruding member 45 has a ring-shaped extruding seat 45.
a is formed in a size that can surround the left and right claws 10a and 10b, and can move up and down without contact with the twisted left and right claws 10a and 10b inserted in the push-out seat 45a. There is.

With such a structure, when the pot seedlings are released from the seedling take-out nail 10 and supplied to the seedling planting nail 15,
For example, even if the seedling picking nail 10 sandwiches a position displaced from the center of gravity of the pot seedling, the released seedling may be greatly inclined in the seedling planting nail, or may be in a recumbent state. Can be reliably prevented, and planting mistakes can be eliminated.

The twisting of the seedling take-out claw 10 is not limited to the above-described one, and may be, for example, the shape shown in FIGS. 7 and 8.

Further, as another embodiment, instead of the structure of the seedling take-out nail 10 described above, the following structure may be adopted.

As shown in FIG. 9, this is a seedling take-out device c.
The pair of left and right claws 10a, 10b of the pair of seedling take-out claws 10 included in each are swingably arranged in the front-back direction (direction orthogonal to the opening / closing direction of the seedling take-out claw 10), and when releasing the seedlings, Extraction claw
At the same time when the tip of 10 is opened, the left and right claws 10a and 10b are respectively swung in opposite directions to give a rotational moment to the seedling.

In this case, the left and right claws 10a and 10b may not be swung, but only one of them may be swung.

Furthermore, another embodiment is shown in FIG.

This is because a fork 50a is formed at the tip of one picking claw 50 provided on the seedling picking device c, and an electric motor is provided between the fork 50a and the base end 50b of the picking claw 50. m
And the fork part 50 is rotated by the rotation of the electric motor m.
It is configured so that a can rotate.

That is, in FIG. 10, m1 is an electric motor m
The rotary shaft m1 has the base end of the fork portion 50a connected to the rotary shaft m1. m2 is a lead wire that connects the electric motor m and a power source (not shown).

55 is a ring-shaped push-out seat 55 at the tip.
The push-out seat 55a is a push-out member having a formed therein, and is formed in such a size as to surround the fork portion 50a.

Like the seedling pushing member 15 of the previous embodiment, the pushing member 55 pushes down the pushing member 55a to push the pot seedlings stuck in the seedling picking nail 50 into the seedling attaching nail 15.
It is intended to promote the operation of discharging and supplying to.

With the above configuration, when the pot seedling is discharged to the seedling-attaching claw 15, the electric motor m can rotate the fork portion 50a while pushing down the pushing member 55. The seedlings receive a rotation moment in the horizontal direction and are released to the seedling planting claws 15 while rotating, so that the straightness can be improved by the shuttle effect similar to that of the previous embodiment.

Therefore, also in this embodiment, it is possible to reliably prevent the released seedlings from being greatly inclined or lying sideways in the seedling-planting nails, and there is no planting error. Reliable planting is possible.

In addition to the above-described embodiment, when the seedlings are discharged and supplied from the seedling take-out device c to the seedling planting device b, a horizontal rotating moment is applied to the seedlings while rotating them. As long as they are released, the same effect can be obtained.

Next, the seedling tray 13 used in the vegetable transplanter A according to the present invention will be described.

11 (a), (b), (c), and (d) are seedling trays 13
It is an explanatory view from a side view of the seedling tray 13, the seedling tray 12
Then, the vertical feed hooks protruding from the vertical feed chain 17 of the seedling vertical feed mechanism 18 described above are vertically fed by engaging the recesses 15b between the cells 13a of the seedling tray 13 at a constant pitch. is doing.

On the other hand, the seedling tray 13 includes the seedling trays 13 (a), (b),
As shown in (c) and (d), the number of cells 13a may differ depending on the size of the seedling, and the number of cells 13a on the long side of the seedling tray 13 also differs. L is the long side length of the seedling tray 13.

Therefore, if the pitch of the vertical feed hooks for vertically feeding the seedling tray 13 is set to, for example, 1/4 L, the cells 13
Even if the seedling trays 13 have different numbers of a, it takes 1/4
One unit of the cell 13a was arranged within the pitch of L.

Therefore, it is not necessary to change the pitch of the vertical feeding hooks even if the seedling tray 13 is replaced at any time as needed, and the efficiency of seedling transplanting work is not reduced.

Further, as shown in FIG. 12, the distance d between the cells 13a on the long side of the seedling tray 13 and the distance e between the edge of the seedling tray 13 and the cells 13a on the side are d. It is regulated by the relational expression of 2 <e <d.

Therefore, when the seedling trays 13 are placed one after another, the vertical feeding pitches of the seedling trays 13 can be adjusted so that the seedlings can be smoothly taken out by the seedling taking-out nails 10.

[0053]

EFFECTS OF THE INVENTION According to the present invention, the seedling take-out device is configured to be capable of imparting a rotation moment to the seedlings when the seedlings are discharged, so that the rotation of the discharged seedlings is improved in straightness. Therefore, for example, even if the seedling take-out nail is pinched at a position deviated from the center of gravity of the pot seedling, the seedling is reliably supplied to the seedling planting device, and the released seedling is greatly inclined in the seedling-planting nail. It is possible to improve the efficiency of the planting work by eliminating planting mistakes without causing the plant to be in a recumbent state.

Further, when the seedling take-out claw is pierced into the pot seedling, it is not necessary to make fine adjustment so as not to deviate from the vicinity of the center of gravity, and since the structure is simple, an increase in cost can be suppressed.

[Brief description of drawings]

FIG. 1 is an overall side view of a vegetable transplanter according to the present invention.

FIG. 2 is an explanatory view of the vegetable transplanter in plan view.

FIG. 3 is an explanatory diagram of the same main part.

FIG. 4 is an explanatory diagram showing a state in which seedlings are supplied from the seedling take-out nails to the seedling-planting nails.

FIG. 5 is an explanatory view of a seedling take-out nail as viewed from the front.

FIG. 6 is an explanatory diagram of a side view of a seedling taking-out nail.

FIG. 7 is an explanatory view from the front of a seedling take-out nail as a modification example.

FIG. 8 is an explanatory view from a side view of a seedling take-out nail as a modification example.

FIG. 9 is an explanatory diagram showing a main part of a seedling planting device according to another embodiment.

FIG. 10 is an explanatory diagram showing a main part of a seedling planting device according to another embodiment.

FIG. 11 is an explanatory view of the seedling tray in a side view.

FIG. 12 is an explanatory view showing a space between cells in a long side direction of the seedling tray.

[Explanation of symbols]

 A Vegetable transplanter a Seedling supply device b Seedling planting device c Seedling removal device 10 Seedling removal claw

Claims (1)

[Claims] 1. A seedling supply device (a), a seedling planting device (b),
And a seedling take-out device (c),
With the seedling take-out claw (10) provided in (c), the seedling feeding device (a)
In a vegetable transplanter that removes seedlings from the plant and releases and supplies them to the planting device (b) side for transplanting seedlings, the seedling removal device (c) that removes and supplies the seedlings is used when the seedlings are released. In addition, a vegetable transplanter characterized by being configured to be able to impart a rotation moment to a seedling.