JPH099736A - Seedling transplanter - Google Patents

Abstract

PURPOSE: To simply and rapidly set a seedling tray and to prevent shaking, etc., in longitudinally sending the seedling tray in a seedling supplying device capable of intermittently taking out seedlings from the seedling tray and longitudinally sending the seedling tray. CONSTITUTION: A chain cover 51 attached to a chain 48 for longitudinal transportation is equipped with a tray guide 60 which is engaged with a seedling tray to prevent the seedling tray from rising. The tray guide 60 can be freely rocked right and left around a rotation supporting part 63 at the upper side as the center and can be fixed to the chain cover 51 by an elastic cramp part 65 at the lower end side. Therefore, the tray guide can be retreated to outside when setting the seedling tray.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant for transplanting seedlings such as vegetables.

[0002]

2. Description of the Related Art Conventionally, as a transplanter for planting seedlings such as vegetables at predetermined intervals along a ridge, for example, one described in JP-A-58-190303 is known. In this seed transplanter, a seedling feeding device configured to vertically feed the seedling tray as needed while intermittently extracting seedlings from a seedling tray in which a plurality of seedlings are aligned and held, and from this seedling feeding device It has a planting device that sequentially transplants the extracted seedlings into the ridges.

[0003] In the seedling feeder provided in the conventional transplanter,
After receiving the seedling tray, along the vertical feeding direction of the seedling tray to prevent the seedling tray from floating while it is being fed vertically or when seedlings are extracted from the seedling tray. A levitating rail is provided for pressing both outer edges of the lever.

[0004]

Since the floating prevention rails are fixed to the device base frames (for example, covers for covering the vertical feed chains) provided on both sides of the receiving area of the seedling tray, the seedling seedlings are not fixed. When setting the seedling tray to the feeding device, raise the seedling tray to the upper end position of the device, and then insert the seedling tray along the longitudinal direction of the seedling feeding device with feeding drive or without driving. Had to do so.

Therefore, there are problems that it is troublesome and that it takes time to set. Moreover, since the above-mentioned floating prevention rail did not exert a pressing force on the seedling tray after setting (it does not contact when it is not floating), rattling, misalignment, deformation, etc. of the seedling tray occur. There was also the problem of being easy. The present invention has been made in view of the above circumstances, and a transplanter capable of easily and quickly setting a seedling tray to a seedling feeding device and preventing rattling, misalignment, deformation, etc. of the seedling tray. Is in the point of providing.

[0006]

According to the present invention, the following technical measures have been taken in order to achieve the above object. That is, the present invention is a transplanting machine having a seedling feeding device that receives a seedling tray for aligning seedlings in a vertically feedable manner, and a planting device capable of transplanting extracted seedlings from the seedling feeding device. The device includes
A tray guide for preventing the received seedling tray from floating is provided, and the tray guide is movable between an engageable position with the seedling tray and the outside of the receiving area. It is characterized by that.

The tray guide may be constructed so that it can be fixed to the apparatus base frame outside the receiving area by an elastic clamping force when moved to a position where it can be engaged with the seedling tray. The tray guide is swingably held in the left and right direction via a rotation fulcrum portion provided on the upper side or the lower side thereof, and the tray guide is moved to a position at which the seedling tray can be engaged with the rotation fulcrum portion. A biasing means may be provided to generate a pressing biasing force to the seedling tray when the bias is applied.

[0008]

In the transplanter according to the present invention, the tray guides provided in the seedling feeding device are provided at a position where the tray guide can be engaged with the seedling tray in the receiving state and outside the area where the seedling tray is received. It is made movable between. Therefore, when trying to set the seedling tray to the seedling feeding device, the tray guide can be temporarily moved outward, that is, to a position where it does not interfere with the setting of the seedling tray.

In the seedling feeding device, a device base frame (for example, a cover for covering the vertical feed chain) is provided outside the receiving area of the seedling tray.
Is provided. Therefore, when the tray guide is moved to a position where it can be engaged with the seedling tray, if the tray guide is locked to the device base frame by an elastic holding force, the attachment / detachment and the movement can be facilitated.

If a pivot fulcrum portion is provided on the upper side or the lower side of the tray guide and the tray guide is held so as to be swingable left and right, the movement of the tray guide can be further simplified.
In this case, if a biasing means for pressing and biasing the tray guide to the seedling tray is provided with respect to the rotation fulcrum, rattling, misalignment, and deformation of the seedling tray on the seedling feeding device will occur. Etc. can be prevented.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. First, referring to FIG. 2 and FIG. 3, the transplanter 1 according to the present invention.
The outline of is explained. The transplanter 1 is a walking type, and has a ridge (HR is a high ridge) formed by a pair of left and right drive wheels 5 driven by an engine 3 mounted on a vehicle body 2 and a pair of left and right steering wheels 6 provided in front of the left and right drive wheels 5. (Level and LR are flat ridge level)
The vehicle is capable of traveling in a manner of straddling the vehicle, and the worker walks in a follow-up manner while gripping the steering wheel 8 protruding rearward to make steering correction.

A seedling feeding device 10 is provided on the front surface of the handle 8.
Is provided. In this seedling supply device 10, a seedling tray T in which a large number of seedlings are aligned vertically and horizontally can be tilted and set. Then, the seedling supplying device 10 supplies seedlings 1 from the seedling tray T set with the traveling of the transplanter 1.
Each plant is intermittently extracted and sequentially supplied to the planting device 12 below via the relay hand unit 11 waiting on the front side.

The planting device 12 has a planting cylinder 14 whose lower part is a perforating claw 13. As the planting cylinder 14 descends, the perforating claw 13 is pierced into a ridge and is planted. It is designed to cut out a hole for use. Therefore, the seedlings supplied from the seedling supply device 10 as described above are dropped into the holes for planting. A multi-burner 18 is provided in front of the planting cylinder 14 so as to form a planned port for planting holes in a mulch (not shown) covered with the ridges, prior to its descending. 19 is the gas cylinder.

Further, behind the planting cylinder 14, a soil-covering ring 16 for compacting around the seedlings dropped in the planting hole.
Is provided. The earth cover 16 is provided on a successor base body 23 connected to the vehicle body 2 via a pivotal support portion 22. The successor base body 23 is provided with a drive unit for the relay hand unit 11 and a planting cylinder 14, and seedling supply. A device 10 and the like are also provided so that their loads can be used for compaction. In addition, 24 is a counterweight 24 capable of adjusting the load balance of the covering wheel 16.

The succeeding base body 23 is capable of changing its position in the left-right direction with respect to the vehicle body 2 at the pivotal support portion 22, and the positioning of the planting cylinder 14 can be adjusted according to the shape of the ridges and the number of planting ridges. ing. Each of the crotch shaft structure portions 27 and 28 of the drive wheel 5 and the steering wheel 6 is expandable and contractable, and the tread is variable according to the width of the ridge. Further, these crotch shaft structure portions 27 and 28 are vertically swingable by fluid pressure cylinders 30 and 31, and the vehicle height is variable according to the height of the ridges. The fluid pressure cylinder 31 for the steering wheel 6 is also used to float only the steering wheel 6 when the transplanter 1 turns. Reference numeral 32 denotes a parallel link mechanism, which can adjust the kingpin angle of the steering wheel 6 to maintain straightness when the vehicle height is changed.

Next, the details of the seedling feeding device 10 will be described. As shown in FIGS. 1 and 4, the seedling feeding device 10 has a horizontally long fixed frame 35, and a vertically long movable frame 36 provided in a superposed manner on the front side of the fixed frame 35. Fixed frame 3
5, a pair of upper and lower horizontal rails 37 is provided, and the movable frame 36 is provided with a roller assembly 38 that engages with each horizontal rail 37. And between these both frames 35 and 36,
A meshing structure of the rack 39 and the pinion gear 40 is provided. Therefore, the movable frame 36 can be moved laterally with respect to the fixed frame 35 by the lateral feed motor 41 that drives the pinion gear 40.

The movable frame 36 is provided with a pair of left and right vertical feed mechanisms 43 for vertically feeding the seedling tray T. Each of these vertical feed mechanisms 43 has an endless chain 48 having upper and lower wheels 44 and 45 and a feed pawl 46 protruding laterally inward at predetermined intervals. 50 is a chain drive motor. These endless chains 4
8, the chain cover 51 (see FIG.
And FIG. 6).

The seedling tray T is made of a resin in which a plurality of cup-shaped seedling pots P for individually storing seedlings are connected around their mouths through sheet-like portions. A hole is formed in the bottom. On the other hand, in the movable frame 36 (see FIG. 1), a center rail 36b is provided between the seedling pots P near the center of the seedling tray T.
(See also FIG. 5) and side rails 36a (see also FIG. 6) for guiding the left and right edges of the seedling tray T are provided. Further, as shown in FIG. 6, the feed claws 46 of the endless chain 48 are inserted between the seedling pots P to push the seedling pot P on the feeding direction side backward.

From the above, the seedling tray T set on the seedling feeding device 10 is warped from the upper part to the lower part (see arrow X) and toward the operator side (right side in FIG. 4). As shown in FIG. 4, the fixed frame 35 is extruded from the bottom hole of the seedling pot P held by the movable frame 36 without any fluttering or meandering and being smoothly guided at a predetermined speed. A seedling take-out device 55 is provided which pierces the stick 53 and pushes out the seedlings to the relay hand section 11. This seedling take-out device 55 has an extrusion motor 56.
By operating the crank mechanism 57 by the
The push-out detector 58 detects the one-cycle operation of the push-out rod 53.

The left and right chain covers 51 (see FIG. 5)
The tray guide 60 is provided in each of the above. These tray guides 60 are formed by bending a wire having a circular cross section so as to project from the chain cover 51 to the seedling tray receiving area inside thereof as shown in FIGS. 1 and 6. Therefore, it is possible to prevent the seedling tray T, which is set on the seedling supplying device 10 and is being vertically fed, from attempting to float.

On the upper side of the tray guide 60, as shown in FIG. 4, there is provided a rotation fulcrum portion 63 held by a support shaft 62 projecting from the chain cover 51. Therefore, this tray guide 60 is used in the seedling feeding device 1
It is possible to move by swinging left and right between a position where it can be engaged with the seedling tray T on 0 and the outside of the receiving area of the seedling tray T (see FIG. 5).

That is, when the seedling tray T is to be set on the seedling feeding device 10, the tray guide 60 is used.
Can be temporarily moved to the outside, that is, to a position that does not interfere with the setting of the seedling tray T (a state indicated by a chain double-dashed line in FIG. 5). The rotation fulcrum portion 63 is provided with a biasing means 64 formed of a coil spring or the like. The urging means 64 can urge the tray guide 60 against the seedling tray T when the tray guide 60 is positioned so that it can be engaged with the seedling tray T on the seedling feeding device 10. It is like this. Therefore, on the seedling supply device 10, the seedling tray T is prevented from rattling, misalignment, deformation and the like.

On the other hand, in the tray guide 60, a clamp portion 65 is provided on the lower side thereof as shown in FIG. The clamp portion 65 is used for the chain cover 5
1 is elastically clamped in the width direction so that it can be fixed. Further, the clamp portion 65 is provided with a finger hook portion 67 that projects outward from the seedling feeding device 10. Therefore, when the tray guide 60 is positioned so that it can be engaged with the seedling tray T on the seedling feeding device 10, the finger hooks 67 are simply pressed against the chain cover 51 or separated from each other, and the attachment / detachment by the clamp portion 65 is performed. (Tray guide 60 can be switched between a movable state and a fixed state).

As shown in FIG. 5, in the seedling feeding device 10, the seedling removing device 5 is provided below the tray guide 60.
5 (see FIG. 4) is provided with a lower guide 69 that cooperates with the tray guide 60 to prevent the seedling tray T from floating. This lower guide 69 is used for the seedling feeding device 1
It oscillates back and forth around a lower horizontal shaft 70 provided so as to cross the lower part of 0.

In the seedling feeding device 10 thus constructed, when the seedling tray T is set, the tray guide 60 is once moved outward as described above, and after setting, the tray guide 60 is returned to the original state. It should be returned. Then, in the seedling feeding device 10, thereafter, the vertical feed position, the horizontal feed position, the takeout state of the seedlings in the seedling tray T, the presence / absence of traveling of the transplanter 1, and the like are appropriately detected by a detector, and the lateral feed is performed based on these. A series of operations such as vertical feeding, seedling pushing out by the seedling take-out device 55, relaying or planting of seedlings are executed in an automatic mode.

The present invention is not limited to the above embodiment. For example, the tray guide 60 can be made swingable on the lower side by using the rotation fulcrum portion 63 (hence the upper side is used as the clamp portion 65). Further, the clamp portion 65 can be replaced with a screwing structure having a small number of leads, a hook structure (engaging structure), or the like.

The clamps 65 are provided on both the upper and lower sides,
It is also possible to make it attachable / detachable to / from the chain cover 51, or to be able to come into contact with and separate from it by a parallel link or the like. The tray guide 60 is not limited to being provided on the chain cover 51, and may be a device base frame (for example, a frame pipe or the like) provided outside the receiving area of the seedling tray T. Anything is fine.

Further, the tray guide 60 can be formed by a plate-shaped material, a block material, a projection-shaped material or the like, as well as a strip plate material or a bar material. Of course, those materials are not particularly limited to metal, resin, rubber and the like. An elastic material such as rubber can be used for the biasing means 64 provided on the tray guide 60.

The other detailed configurations of the seedling supplying device 10 and the transplanting machine 1 are not limited at all. For example, in the seedling feeding device 10, the vertical feeding mechanism 4
It is possible to use a fluid pressure cylinder as a drive source for 3, or to use a chain transmission or a fluid pressure cylinder in a lateral feed structure. Further, the transplanting machine 1 as a whole can be implemented as a riding type transplanting machine, a single-row transplanting machine, a multi-row transplanting machine, or the like. In particular, the drive wheels 5 are used as traveling devices.
It is also possible to provide a crawler traveling device instead of the steering wheel 6.

[0030]

According to the present invention, which has the above-mentioned structure, the tray guide provided in the seedling feeding device is provided with a position where the tray guide can be engaged with the seedling tray in the receiving state and the seedling tray. Since it is movable to the outside of the receiving area, when setting the seedling tray to the seedling feeding device, once set the tray guide to the outside, that is, set the seedling tray. It can be moved to a position where it does not interfere with. Therefore, there is an advantage that the seedling tray can be easily and quickly set in the seedling feeding device.

Moreover, when setting the seedling tray, it suffices to press the seedling tray from the front side of the seedling feeding device, and it is not particularly necessary to lift the seedling tray to the upper end position of the seedling feeding device. The set-up can be made easier with the ride-on transplanter (because the ride-on transplanter has the seedling feeding device facing backwards).

If the tray guide has a structure capable of being fixed to the apparatus base frame provided outside the receiving area of the seedling tray by an elastic clamping force, the attachment / detachment becomes extremely easy. Therefore, the seedling tray can be set more easily and quickly. If a pivot fulcrum portion is provided on the upper side or the lower side of the tray guide and the tray guide is held so as to be swingable left and right, the movement of the tray guide becomes easy. Further, in this case, if the biasing means for pressing and biasing the tray guide to the seedling tray is provided at the rotation fulcrum portion, rattling and positional deviation of the seedling tray on the seedling feeding device,
There is an advantage that deformation and the like can be prevented.

[Brief description of drawings]

FIG. 1 is a front view showing a seedling supply device (corresponding to the arrow A in FIG. 2).

FIG. 2 is a side view showing a transplanter.

FIG. 3 is a partially omitted plan view of FIG. 2;

FIG. 4 is an enlarged sectional view taken along line BB of FIG. 1;

FIG. 5 is a perspective view of a seedling supply device.

FIG. 6 is an enlarged sectional view taken along line CC of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transplanter 10 Seedling supply device 12 Planting device 60 Tray guide 63 Rotating fulcrum part 64 Energizing means

Claims (3)

[Claims] 1. A seedling feeding device (10) for vertically feeding a seedling tray (T) for aligning seedlings, and the seedling feeding device (1).
In a transplanter having a planting device (12) capable of transplanting the extracted seedlings from (0), the seedling feeding device (10) is prevented from engaging the received seedling tray (T) with its surface. A tray guide (60) is provided, and the tray guide (60) is movable between a position where the tray guide (T) can be engaged and the outside of the receiving area. Transplanter. 2. The tray guide (60) is fixed to the device base frame (51) outside the receiving area by elastic clamping force when moved to a position where it can be engaged with the seedling tray (T). The transplanter according to claim 1, which is enabled. 3. The tray guide (60) is swingably held to the left and right through a pivot fulcrum (63) provided on the upper side or the lower side of the tray guide (60), and the pivot fulcrum (63) is held by the pivot fulcrum (63). ,
A biasing means (64) is provided for generating a biasing force to the seedling tray (T) when the tray guide (60) is moved to a position where it can be engaged with the seedling tray (T). The transplanter according to claim 1 or claim 2.