JP3442838B2 - Seedling tray holding device of vegetable transplanter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling tray holding device for a vegetable transplanting machine which enables pot seedlings from a seedling tray to be sequentially supplied to a planting nail via a relay cup and transplanted into a field one by one. It is about.

[0002]

2. Description of the Related Art Conventionally, there has been a vegetable transplanting machine configured to take out a pot seedling from a seedling tray and to feed the pot seedling to a vertically movable hopper type planting claw for transplanting the seedling. In the vegetable transplanter, the seedling tray is placed on the seedling table and conveyed to the position for supplying the planting nails.

In the process of transporting such a seedling tray,
In order to prevent the same seedling tray from being bent and the accurate supply of seedlings not being performed, the vegetable transplanting machine is generally provided with a seedling tray holding device.

This is because the tray holder is provided on the seedling placing table,
Both ends of the seedling tray are pressed and held from above by the same seedling presser.

Further, by pressing the tray, the seedlings in pots located in the end row of the tray are also weeded at the same time so that the leaves of the seedlings are not caught in the machine.

[0006]

However, the seedling tray holding device having the above-mentioned structure still has the following problems.

[0007] That is, if the tray holder is provided over the whole area of the seedling carrier in the seedling conveying direction, it will be an obstacle when performing seedling splicing. It is installed downstream from the seedling transport direction.

Therefore, there is a possibility that the seedling tray may be bent at the portion where the tray holder is not provided for seedling splicing (upstream side in the seedling conveying direction).

When the seedling tray bends, heavy seedlings may get over the tray holder due to vibrations during vertical feeding, in which case the seedling tray may be damaged or become out of stock.

Further, it is difficult to achieve both the function of pressing the seedling tray and the function of weeding and raising seedlings. Moreover, with the above construction, weeding and raising can be performed immediately from the seedling joint position. There wasn't.

It is an object of the present invention to provide a seedling holding device for a vegetable transplanter which can solve the above problems.

[0012]

According to the present invention, a seedling tray placed on a seedling placing table is conveyed to take out pot seedlings, and the pot seedlings are supplied to a hopper type planting claw which can be moved up and down. In a vegetable transplanter configured to perform the transplanting of the seedlings, the seedling tray is held at the upstream side in the seedling conveying direction of the seedling tray with respect to the end of the seedling tray.
The present invention relates to a seedling tray holding device for a vegetable transplanter, which is equipped with a tray holding plate for releasing the holding.

Further, according to the present invention, the seedling tray placed on the seedling mounting table is conveyed to take out the pot seedlings, and the pot seedlings are supplied to a vertically movable hopper type planting claw to transplant the seedlings. In the vegetable transplanting machine configured as described above, a mounting seat is provided on the frame that is on the upstream side in the seedling transport direction of the seedling mounting table, and a tray retainer is rotatably mounted around a rotation fulcrum provided on the mounting seat. Moreover, the tray retainer is also characterized in that it is configured to be biased by a spring in a direction of pressing the end portion of the seedling tray.

[0014]

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

FIG. 1 is a side view of a vegetable transplanter equipped with a seedling tray retainer according to the present invention, FIG. 2 is a plan view of the vegetable transplanter, and FIG. 3 is an operating state of the seedling tray retainer. FIG. 4 is an explanatory diagram showing the seedling tray holding device in cross section.

As shown in FIGS. 1 and 2, the vegetable transplanter Y
Has an engine 2 mounted on a front frame 1 and a mission case 3 arranged behind the engine 2.

The transmission case 3 is provided with left and right rear wheels 4, 4 as driving wheels which are vertically swingably supported via a left and right transmission case 5. 6,6 are the left and right front wheels,
It is attached to the front end side of the front frame 1 through an axle frame 7 so as to be vertically swingable.

Further, a seedling feeding device 8 described later is provided behind the mission case 3 via a chassis frame 9, and a planting transmission case 11 is interposed between the seedling feeding device 8 and the mission case 3. A planting claw 18 is provided.

The planting claw 18 is formed in a hopper shape and is configured to move up and down in conjunction with the multi-cutter 17 and is placed on the seedling placing table 14 of the seedling feeding device 8. The pot type seedlings a taken out from the tray A can be received one by one and planted on the ridge surface U at regular intervals.

In FIGS. 1 and 2, 12 is a pressure suppressing roller for suppressing the ridge surface U, 13 is a gauge wheel for supporting the seedling planting device 10 including the planting claws 18 and the like so as to be vertically swingable, 19
Is a steering wheel, 21 is a planting clutch lever, 22 is a main shifting lever, 23 is a stock shifting lever, 24 is a planting depth adjusting lever, 25 is a left and right side clutch lever, 26 is a seedling holding rod,
27 is a support rod for the seedling holding rod 26, 28 is a relay cup for supplying the seedling a to the planting claw 18, 29 is seedling a taken out from the seedling tray A
Is a seedling feeding mechanism for transporting the seedlings to the relay cup 28, 29a is a seedling receiving stand, A1 is a spare seedling tray, and b is a spare seedling placing stand.

In the vegetable transplanter Y having the above structure, the gist of the present invention is to hold / release the end of the seedling tray A on the upstream side of the seedling mounting table 14 in the seedling conveying direction. Attach the tray retainer plate 35, which allows seedling tray retainer F
Has been configured.

That is, the seedling tray holding device F is shown in FIGS.
As shown in FIG. 5, the operation lever 32 is rotatably attached to the frame 33 that constitutes the seedling placing table 14 at the most upstream side in the seedling conveying direction of the seedling placing table 14, that is, at the seedling joining position. A tray pressing plate 35 is connected to 32 via a connecting plate 34.

Then, the operation lever 32 can be horizontally rotated from the holding position to the holding release position, and in the holding position, the tray pressing plate 35 is rotated around the fulcrum 30 to rotate the seedling tray A.
The edge of the seedling is lightly pressed, and the tray pressing plate 35 is disengaged from the edge of the seedling tray A at the holding release position. Therefore, the tray pressing plate 35 does not get in the way even when the seedling is spliced.

In FIGS. 3 and 4, reference numeral 36 is a connecting pin projecting from the connecting plate 34 and engaged with an elongated hole 37 formed in the tray pressing plate 35. Further, 38 is a spring interposed between the connecting plate 34 and the lower surface of the frame 33, and holds the operation lever 32 so as not to move due to slight vibration. A friction plate or the like may be used instead of the spring.

Further, the tray pressing plate 35 may be formed of a thick synthetic resin or the like to have a weeding action and a raising action for the leaves of the seedling a.

In this embodiment, in addition to the seedling tray holding device F, a tray holding rod 40 is provided on the downstream side of the device F.

The tray pressing rod 40 is formed in a gate shape having a constant height from the frame 33 so that seedlings can be weeded. Since it can be pressed over the entire length of the mounting table 14, it is possible to reliably prevent the seedling tray A from bending and bouncing.

The operation of the seedling tray holding device F according to the present invention will be briefly described with reference to FIGS. 3 (a) and 3 (b).

When performing seedling splicing or the like, the tray pressing plate 35 of the seedling tray pressing device F is displaced from the end of the seedling tray A as shown in FIG. 3 (a), and the tray pressing plate 35 is pressed. The connecting pin 36 for directly rotating the contact hole is in contact with the front end of the elongated hole 37.

When transplanting the seedling a, the operating lever 32 is pulled to the front side, and the connecting pin 36 is moved to the tray holding plate 35.
The tray pressing plate 35 is rotated around the fulcrum 30 by abutting on the rear end of the elongated hole 37, and the end of the seedling tray A is pressed by the front side of the tray pressing plate 35.

At this time, the operating lever 32 and the tray pressing plate 35 are held by the spring 38 and do not rattle.

With the above-mentioned structure, the seedling tray A is securely pressed, the stable supply of the seedling a, and
It becomes possible to perform stable planting with the seedling planting device 10.

Further, since the seedling a has a weeding action at the same time, the leaves of the seedling a will not be caught and become a stump.

As a modification of the seedling tray holding device F,
What is shown in FIG. 5 will be described.

This is the tray pressing plate 35 and the operating lever 32.
The seedling tray A so that the rotation direction is the transport direction of the seedling tray A.
The rotary cylinder 41 is connected to the rotary cylinder 41 provided on the rotary shaft 14 and is rotatable around the rotary shaft 42.

The operation lever 32 is vertically rotatable from the holding position to the holding release position. At the holding position, the tray pressing plate 35 is rotated about the rotation shaft 42 and the end of the seedling tray A is rotated. The tray pressing plate 35 is rotated upward at the holding release position so as to be disengaged from the end of the seedling tray A while pressing the portion.

Further, in order to hold the seedling tray holding device F at the holding position and the holding release position, the above-mentioned rotating cylinder is used.
The positioning recesses 43 and 44 are formed in the recess 41, and the positioning sphere 45 is fitted into the recesses 43 and 44 so as to be held at a predetermined position.

The positioning sphere portion 45 is a frame
It is provided on a substantially L-shaped bracket 46 attached to 14a.

In FIG. 5, reference numeral 47 denotes a bearing plate to which the rotary shaft 42 is attached, which is erected on the frame 14a.

Next, as another embodiment, a seedling tray holding device F shown in FIGS. 6 and 7 will be described.

In the vegetable transplanter Y having the same construction as the previous embodiment, the mounting seat 51 is provided on the frame 14a, which is the upstream side of the seedling mounting table 14 in the seedling conveying direction, and the mounting seat 51 is provided.
A tray retainer 53 is rotatably mounted around a pivot fulcrum 52 provided in the tray support 53, and the tray retainer 53 is biased by a spring 54 in a direction to press the end of the seedling tray A. It is characterized by what it did.

That is, as shown in FIG. 6, in the mounting seat 51, a mounting plate 55 of a certain length is erected on the frame 14a which is the upstream side of the seedling mounting table 14 in the seedling conveying direction. A rotation fulcrum 52 is provided at the tip of the.

A base end of a tray retainer 53 formed in a substantially L shape when viewed from the conveying direction of the seedling tray A is connected to the rotation fulcrum 52. Reference numeral 53a is a cylindrical portion which is the base end of the tray retainer 53.

The tray retainer 53 is biased by a spring 54 interposed between the retainer 53 and the spring receiver 56 in a direction of pressing the end of the seedling tray A. By rolling 53 toward the seedling tray A side, it is possible to easily prevent the seedling tray A from rolling and bending.

When the holding of the seedling tray A is to be released, the tray pressing member 53 may be rotated upward, and by holding the spring 54 beyond the fulcrum, it is held at the releasing position as shown by the one-dot chain line in FIG. To be done.

In FIG. 6, reference numeral 57 denotes a stopper, which is connected to the cylindrical portion 53a so that the tray retainer 53 can hold the seedling tray A with a predetermined force to stop the tray retainer 53 at a required position. I have to. Therefore, the end portion of the seedling tray A is not pressed down more than necessary. In addition, in FIG.
Reference numeral 58 is a seedling tray transfer mechanism.

Further, as shown in FIG. 8, the holding force of the seedling tray A may be applied to the tray retainer 53 itself instead of the spring 55.

That is, the tray retainer 53 is formed of, for example, an elastic body used for a spring and the like.
The bent portion 59 allows the end portion of the seedling tray A to be held.

The arrangement position and the number of the tray retainers 53 may be appropriately determined. For example, as shown in FIG.
Alternatively, as shown in the previous embodiment, the tray pressing rod 40 can be attached to the downstream portion.

The tray retainer 53 according to this embodiment is
It can be used in place of the tray pressing rod 40 of the previous embodiment, or can be arranged on the left and right sides of the seedling placing table 14 over the entire length direction thereof.

Next, the seedling guide G shown in FIG. 10 will be described.

This is as shown in FIG. 10 and FIG.
A plurality of seedling trays A are provided for each state of the seedling tray A from near the seedling joint position to near the seedling take-out position.
To correct the posture of.

For example, when the seedling a is in a state where leaves are overgrown, when the seedling a is supplied to the seedling planting device 10, the adjacent seedlings a in the seedling tray A are also supplied, In addition, the leaves may be laid out by the seedling tray holding device F, resulting in a stock stall.

Particularly, when the vegetable transplanter Y of the type used in this embodiment, that is, when the seedling a is extruded and inherited,
There is a problem that smooth delivery becomes difficult.

Therefore, as shown in FIG. 10 and FIG.
The height direction and the width direction are continuously changed at the start end portion to form a weeding portion 61 having a weeding function in a three-dimensional shape, and
The seedling guide G is constructed by continuously arranging partition bodies 62 that form partitions for each row from the same weeding portion 61 to the end.

As the mounting structure of the seedling guide G, as shown in FIG. 13, a connecting member 63 formed in a gate shape so as to straddle the seedling mounting table 14 to a stay 64 corresponding to the seedling guide G for each state. It is conceivable to install the partition 62 of the seedling guide G on the stay 64 by mounting the partition downward. 65 is a mounting part,
66 is a mounting bolt.

As shown in FIG. 14, on the most downstream side of the seedling placing table 14, a guide connecting body 71 is arranged near the position where the seedling a is inherited, and the end of each seedling guide G is attached to the connecting body 71. It is also possible to extend them and connect them in series.

By disposing the seedling guide G having the above-mentioned structure, it is possible to prevent supply mistakes of the seedling a, missing stocks, etc. due to leaf clogging of the seedling a, and poor planting posture at the time of planting. It is possible to improve the planting performance and provide a highly reliable vegetable transplanter Y.

[0059]

According to the present invention, a seedling tray placed on a seedling placing table is conveyed to take out a pot seedling, and the pot seedling is supplied to a vertically movable hopper type planting claw to transplant the seedling. In the vegetable transplanter configured to perform the seedling tray, by installing a tray pressing plate for holding and releasing the end of the seedling tray on the upstream side in the seedling conveying direction of the seedling mounting table, Not only can it be pressed securely, but also the seedling tray can be prevented from bending and seeding can be spliced without any problems.

Further, stable seedling supply and stable planting with the seedling planting apparatus can be performed.

Since the seedlings can be weeded simultaneously,
Leaves of seedlings do not get caught and run out of stock.

Further, a mounting seat is provided on the frame on the upstream side of the seedling mounting table in the seedling conveying direction, and a tray retainer is rotatably mounted around a rotation fulcrum provided on the mounting seat.
Moreover, the tray retainer is configured to be biased by the spring in the direction to press the end of the seedling tray, so that the seedling tray can be laterally swung, and the seedling tray can be bent and rebounded during transportation. Can be prevented.

[Brief description of drawings]

FIG. 1 is a side view of a vegetable transplanter equipped with a seedling tray retainer according to the present invention.

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

FIG. 3 is an explanatory view showing an operating state of the seedling tray holding device according to the present invention.

FIG. 4 is an explanatory view of the seedling tray holding device according to a cross-sectional view.

FIG. 5 is an explanatory diagram showing a modification of the seedling tray pressing device.

FIG. 6 is an explanatory diagram of a seedling tray holding device according to another embodiment.

FIG. 7 is an explanatory diagram of the same side view.

FIG. 8 is an explanatory diagram showing a modified example of the seedling tray holding device.

FIG. 9 is an explanatory diagram of the same side view.

FIG. 10 is an explanatory view of the seedling guide in plan view.

FIG. 11 is an explanatory diagram of the same side view.

FIG. 12 is an enlarged view of the main part.

FIG. 13 is an explanatory view showing a mounting structure of a seedling guide.

FIG. 14 is an explanatory diagram showing a modified example of the mounting structure.

[Explanation of symbols]

14 seedling stand 18 Planted nail 32 Control lever 35 Tray holding plate 29 Fluid outlet a seedling A seedling tray Y vegetable transplanter

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Claims (2)

(57) [Claims] 1. A hopper type planting claw (a) with which the seedling tray (A) placed on the seedling placing table (14) is conveyed to take out the pot seedling (a) and the pot seedling (a) can be moved up and down. In a vegetable transplanting machine configured to supply seedlings to be supplied to 18), the seedling tray (A) is provided on the upstream side in the seedling conveying direction of the seedling mounting table (14).
Tray retainer plate (35) that holds and releases the end of the tray
A seedling tray retainer for a vegetable transplanter, which is equipped with. 2. A seedling tray (A) placed on a seedling placing table (14) is conveyed to take out a pot seedling (a), and the pot seedling (a) is vertically movable in a hopper type planting claw ( is supplied to the 18) in the configuration vegetables transplanter to perform transplantation of seedlings, the frame forms an upstream side of the seedling carrying direction of said seedling mounting base (14) (1
4a) is provided with a mounting seat (51), and a tray retainer (53) is rotatably mounted around a rotation fulcrum (52) provided on the same mounting seat (51). ) Is the spring (54)
According to the present invention, the seedling tray retainer for a vegetable transplanter is configured to be urged in a direction of pressing the end portion of the seedling tray (A).