JP3464187B2 - Planting device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a planting device mainly used in a tobacco transplanter, and more particularly to a scraper device for a planting cup.

[0002]

2. Description of the Related Art Conventionally, a planting body for planting seedlings in a ridge and a seedling feeding device for feeding the seedlings to the planting are provided behind the running body, and the seedlings are run along the longitudinal direction of the ridge. There is a transplanter that automatically implants the ridge in the ridge. As a planting body of this transplanter, there is a planter that is supported by a frame of a transplantation device so as to be able to move up and down and that has a planting cup that can be opened and closed back and forth. The planting cup is formed in a beak shape that is tapered toward the lower side, and seedlings are supplied from above at the upper position of its movement locus, and descend while holding the seedlings with the planting cup closed. Then, the planting cup is configured to plunge into the ridge and open back and forth to form a planting hole in the ridge, and to drop and release seedlings into the formed planting hole.

In this type of planting device, since the planting cup projects into the ridge, soil is easily attached to the planting cup, and when soil is attached to the planting cup, the planting hole becomes large and other harmful effects are caused. Therefore, there is also a scraper provided with a rubber plate. However, in the tobacco transplanter, the planting cup is larger than the vegetable planting cup because the planting cup forms a large planting hole that makes the seedlings substantially immersed, and the diameter changes greatly as it goes upward ( The rubber plate has a substantially conical shape (downward tapered shape) and a lower part is formed in a flat beak shape in the front and rear, and the shape of the upper side is significantly different from the shape of the lower side. It was difficult to scrape off the soil by itself, and the cigarette transplanter did not have a scraper.

[0004]

Since the tobacco transplanter is not provided with a scraper for scraping off the soil adhering to the planting cup, a spatula is used when the seedlings are planted to the end of the ridge and swirled. It took a lot of work and had to do the troublesome work of scraping off the soil attached to the planting cups. Therefore, in view of the above problems, the present invention provides a planting device provided with a scraper that can scrape off soil satisfactorily even in a planting cup whose top and bottom shapes are greatly different, such as a cigarette transplanter. The purpose is to do.

[0005]

Means for Solving the Problems The technical means taken by the present invention to achieve the above-mentioned object is that it is supported in an ascendable and descendable manner, and is planted in a field by descending and plunging into and opening the field. In a planting device equipped with a planting cup configured to form a hole and drop the seedling held therein into the planting hole, when the planting cup rises, it contacts the outer surface of the planting cup. The upper scraper member for scraping off the soil attached to the upper portion and the lower scraper member for scraping off the soil attached to the lower portion are provided.

Further, it is preferable that the upper scraper member is made of a hard material and has a scraping portion along the outer shape of the planting cup, and the lower scraper member is made of an elastic body. Further, the planting cup is configured to open and close forward and backward by a pair of front and rear components, and the scraper may scrape off the soil on the outer side of the rear component. Also, it is preferable to provide a lever for forcibly opening the planting cup.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In FIG. 3, the transplanter is a tobacco transplanter mainly used for transplanting tobacco seedlings, and is composed of a traveling body 1 and a transplanting device 2 provided on the traveling body 1, and the ridge R The seedlings are automatically planted in the ridges R while moving forward in the longitudinal direction (direction of arrow C). The traveling body 1 has a vehicle body 3, and an engine (not shown), a mission case 4 and the like are attached to the vehicle body 3. The engine and mission case 4 are covered with a hood 5.

A pair of left and right front wheel support shafts 6 are provided at the front of the vehicle body 3.
Is provided so as to extend in the left-right direction, a front wheel arm 7 is provided on the support shaft 6, and a front wheel 8 is rotatably supported at the tip of the arm 7. Further, rear wheel support shafts 9 are provided so as to extend in the left-right direction from both left and right sides of the mission case 4,
The transmission case 10 is attached in an inclined shape that moves downward as it goes rearward, and the rear wheel 11 is supported at the tip of the transmission case 10. A traveling power transmission shaft 12 is inserted through the axial center of the rear wheel support shaft 9, and the power of the engine is transmitted from the transmission shaft 12 to the rear wheel 11 via a power transmission mechanism in the transmission case 10. It is configured.

The transmission case 10 is vertically swingable around the rear wheel support shaft 9 by the operation of the lifting cylinder 13. The movement of the lifting cylinder 13 is linked to the interlocking link 14
Is transmitted to the front wheel support shaft 6 through the front wheel arm 6, and the front wheel arm 7 also swings up and down around the front wheel support shaft 6 so that the height of the vehicle body 3 can be adjusted. Further, the left and right transmission cases 10 swing in opposite directions by the operation of the rolling cylinder 15, and this swing is caused by swinging the left and right front wheel arms 7 in opposite directions via the interlocking link 14. The vehicle body 3 can be rolled in the left-right direction, and horizontal control in the left-right direction is possible.

Further, the distance between the left and right front wheel arms 7 and the distance between the left and right transmission cases 10 are adjustable, and the wheel distance can be adjusted. In this transplanter, front and rear wheels 8, 11 on the right side
The wheel distance can be adjusted by moving the vehicle in the left-right direction with respect to the vehicle body 3. A main frame 16 extending rearward is fixed to an upper portion of a rear portion of the mission case 4, and a main handle 17 is provided at a rear end of the main frame 16.
Is attached, and auxiliary handles 82 are provided on both left and right sides of the main handle 17. In tobacco cultivation,
Since the whole seedling is immersed in the planting hole, the ridge will be a large ridge (large in height and width) R, but if a transplanter formed corresponding to this ridge R is used for a normal ridge, Since the height of the ridge R is high, the vehicle body has to be raised accordingly, so a transmission case for supporting the rear wheels comes up. However, if the transmission case is set up too much, horizontal control in the left-right direction, etc. will occur. Since it becomes difficult, in the transplanter for tobacco cultivation, the long transmission case 10 is used in order to correspond to the large ridge R.

In a walk-behind transplanter, for example, when turning at the time of pillowing, in a walk-behind transplanter, the handle is normally pushed down to tilt the vehicle body around the rear wheels to the front-up state to raise the front wheels, and the left and right rear wheels. This is done by turning off the power transmission to the steering wheel.At this time, the transmission case is set up so that the front wheel side can be easily lifted.Therefore, if the transmission case becomes longer, the position of the steering wheel becomes higher as the position of the vehicle body becomes higher. Becomes higher and it is difficult to push down the handle. Therefore, in the transplanter according to this embodiment, the main handle 17 has a pair of left and right auxiliary handles 82 located below the grip portion of the handle 17.
The auxiliary handle 82 is used to facilitate the pushing down of the rear part of the transplanter when turning, for example, during pillowing.

Therefore, the operating lever 83 for operating the steering clutch for turning on / off the power transmission to the rear wheel 11 is attached to the auxiliary handle 82. Further, during normal work or movement, the auxiliary handle 82 is in a low position and the waist is bent. Therefore, by using the main handle 17, the work can be performed while standing straight. You can Further, at the lower part of the rear part of the mission case 4, a planting frame 18 is extended rearward and is formed in the main frame 1.
6 is fixedly attached. The transplanting device 2 is provided on the main frame 16 and the planting frame 18.

The transplanting device 2 includes a ground leveling device 19 provided on the lower abdomen of the mission case 4, a seedling feeding device 20 provided over the rear portion of the main frame 16 and the main handle 17, and the seedling feeding device. 20. A seedling take-out device 21 provided on the main frame 16 in front of 20, a planting device 22 provided on the planting frame 18 below the seedling take-out device 21, and a mulch film covering the surface of the ridge R. It has a punching device (not shown) for forming a hole at the M planting position. The ground leveling device 19 has a bracket 24 provided on the lower abdomen of the mission case 4 so as to be vertically swingable, and a ground leveling roller 25 is rotatably supported by the bracket 24. The leveling roller 25 is configured to roll on the top surface of the ridge R.

The seedling supply device 20 has a seedling table 26 for intermittently feeding a seedling tray containing a large number of pot seedlings (soiled seedlings) vertically and horizontally. The seedling mounting table 26 is arranged so as to be inclined upward so that the seedlings can be taken out from the seedling tray in the forward direction. The seedling take-out device 21 takes out the seedlings with soil from the seedling tray one by one and supplies them to the planting device 22, and a pair of left and right take-out claws 27 that pierce the floor soil part of the seedling and the claws 2.
It is composed of a claw support device 28 for supporting 7 and a claw drive device 29 for moving the claw support device 28.

The pawl drive device 29 is fixed to the main frame 16, and the power of the engine is transmitted from the transmission case 4 via the transmission shaft 30. As shown in FIG. 2, FIG. 4, and FIG. 5, the planting device 22 includes a planting body 31 whose lower side can be opened and closed back and forth, an elevating device 32 for moving the planting body 31 up and down, and An opening / closing device 33 that opens and closes the lower side of the plant 31. In this planting device 22, the seedlings are put into the planting body 31 from above and stored in the planting body 31 in a raised position with the lower part of the planting body 31 closed.
By lowering and piercing the lower part of the planting body 31 into the ridge R and opening it, a planting hole is formed in the ridge R, and the seedlings held in the planting body 31 are dropped into the planting hole and released. By doing so, the seedling in the planting body 31 is planted in the ridge R.

The planted body 31 includes a support cylinder 34 on the upper side,
A lower planting cup (opener) 41 that can be opened and closed back and forth,
An attachment body 40 that attaches and supports the planting cup 41 to the support cylinder 34 in an openable and closable manner via a pair of front and rear pivot portions 35 is provided. In addition, a tubular seedling guide that is internally fitted from the upper side to the lower side of the planting cup 41 is provided in the support tube 34, and this seedling guide is made of plastic and is elastically deformable. Seedlings thrown in from the lower planting cup 4
In the state where the planting cup 41 is closed and the seedling cup 41 is closed, the leaf portion of the seedling is supported by its inner peripheral surface to keep the seedling in a substantially straight state.

As shown in FIGS. 4, 6 and 7, the planting cup 41 is configured so as to be openable and closable forward and backward from the front and rear structural bodies 41A and 41B. It is formed in a cup shape that is formed in a generally conical shape with a tapered tip and is open upward so that seedlings can be accommodated and held therein, and seedlings can be dropped and released downward in an open state. Further, the planting cup 41 is formed in a large size with a diameter that varies greatly from the lower side to the upper side in order to form a planting hole that makes the seedlings substantially immersed. Further, the lower portion 37 of the planting cup 41 is formed in a flat beak shape in the front and rear to flatten the bottom of the planting hole to prevent the released seedlings from falling.

Further, each constituent body 41A of the planting cup 41,
A flange 38 is provided at the upper end of each 41B. The mounting body 40 is formed in an inverted V shape, and its front-rear center portion is fixed to the side surface of the support cylinder 34. Front and rear of the mounting body 40 are provided with pivotal support portions 35 having bearings in the left-right direction, and swinging arms 36 are provided around the front-rear pivotal support portions 35 via shafts 39 around the left-right axis. It is rotatably supported by. The swinging arm 36 supported by the front shaft 39 has a rear structural body 41B (the flange 38 thereof), and the swing arm 36 supported by the rear shaft 39.
The front structural body 41A (of which the flange 38) is attached and supported.

As a result, the front and rear components 41A and 41B of the planting cup 41 are supported by the support cylinder 34 so as to be swingable back and forth around the axis in the left-right direction, and the planting cup 41 shown in FIG. 4 is closed. From the above state, the front structural member 41A of the planting cup 41 swings forward (the direction of arrow A), and the rear structural member 41B of the planting cup 41 swings to the rear (direction of arrow B). By doing so, the planting cup 41 is opened back and forth (see FIG. 5). The front and rear swing arms 36 are biased by a spring 42 so that the front and rear components 41A and 41B of the planting cup 41 approach each other, and the spring 42 closes the planting cup 41 (front and rear components). 41A and 41B are urged so that the opposite sides thereof are brought together.

An interlocking pin 43 is projectingly provided on one swing arm 36, and a long hole 44 with which the pin 43 is engaged is formed in the other swing arm 36, so that one swing arm 36 can be swung. If the movable arm 36 rotates about the shaft 39 of the pivot 35,
By the engagement of the interlocking pin 43 and the long hole 44, the other swing arm 36 is also rotated around the shaft 39 of the pivot portion 35, and the planting cup 41 is opened and closed. The lifting device 32 includes a pair of upper and lower first parallel links 4 whose rear end is rotatably supported by the support cylinder 34 so as to be rotatable around a horizontal axis.
5, a relay member 46 rotatably supported on the front end portion of the first parallel link 45 so as to be rotatable about a horizontal axis, and a lower end of the relay member 46 is rotated about a horizontal axis. A pair of front and rear second parallel links 48 which are rotatably supported and whose upper ends are rotatably rotatably supported by brackets 47 provided on the main frame 16 and the planting frame 18 about a horizontal axis.
And a crank arm 49 rotatably provided on the planting frame 18, and a crank pin 50 connecting the crank arm 49 and the first parallel link 45.

The crank pin 50 is inserted through a bearing portion 58 provided in the middle of the upper link of the first parallel link 45. The pin 5 is attached to the crank arm 49.
There is a shaft portion 51 at the end opposite to 0, and the shaft portion 51 is
It is rotatably supported by a bearing portion 52 provided on the planting frame 18 around a horizontal axis. In addition, the shaft portion 51
A driven sprocket is provided at an end portion of the engine, and an output shaft 54 to which power from the engine is transmitted is provided at a front end side of the planting frame 18, and a drive sprocket is provided at the output shaft 54. The driving sprocket and the driven sprocket are linked by a chain, and the crank arm 49 is rotationally driven in the direction of arrow D in FIG. 4 by the power from the engine, whereby the first and second parallel links 4
The planted body 31 is moved up and down through the swinging movements of 5, 48.

That is, when the crank arm 49 is rotationally driven in the direction of arrow D in FIG. 4, the planting body 31 descends from the uppermost end position shown in FIG. 4, but in the descending process, the first half descends while moving forward. Then, it descends while moving backward from the middle. Further, when it reaches the lowermost position shown in FIG. 5, it rises this time, but in this ascending process, it rises while moving backward in the first half and moving forward from the middle.
In addition, the ascending / descending trajectory of the planted body 31 is not limited to the above-described one. The opening / closing device 33 has a first link 59 and a second link 60, and one end of the first link 59 has an elongated hole 5 that engages with a pin 53 provided on one swing arm 36.
5, the other end side of the first link 59 is pivotally supported by the tip end side of the second link 60, and the base side of the second link 60 is pivotally supported by the relay member 46.

A cam follower 61 is provided in the middle of the second link 60. On the other hand, the crank pin 50
Extends from the bearing portion 58 of the first parallel link 45,
The cam 62 is spline-connected to this extending portion. The opening / closing device 33 is configured by contacting the cam 62 and the cam follower 61 so that they can come in and out of contact with each other. The shape of the cam 62 is the bottom dead center (bottom end position) of the plant 31.
The shape of the cam is selected so as to contact the cam follower 61 to open the planting cup 41 and close it at the top dead center.

The opening / closing timing and the opening can be arbitrarily designed by appropriately selecting the cam shape. Since the planting body 31 (particularly the planting cup 41) of the tobacco planting machine is large, the planting apparatus 2 includes the first parallel link 45, in order to move the planting body up and down in a stable manner. Second parallel link 48, relay member 46, mounting body 4
0, the front and rear swing arms 36, etc. are provided on both left and right sides of the planted body 31, and the planted body 31 is supported by both ends. Planted body 3
A guide member 64 is provided on the rear side of the unit 1.

On the upper part of the guide member 64, the mounting plate 6
5 is fixed, and the mounting plate 65 is fixed to a mounting portion 67 formed on the upper portion of the swing arm 36 on the base side by bolts or the like. The upper portion of the guide member 64 is formed in an inclined shape that moves rearward as it goes downward, and the lower portion is formed in an inclined shape that moves forward as it goes downward, and the rear surface side of the guide member 64 is a guide. Face 64
As shown in FIGS. 1 and 2, the planting device 22 is provided with a scraper device 68 for scraping off the soil attached to the outer surface of the planting cup 41.

This scraper device 68 is composed of the scraper 6
9, and a support member 70 that supports the scraper 69,
It has an urging means 71 for urging the scraper 69 to press it against the planting cup 41. The support member 70 is mainly composed of a pair of left and right arm portions 75 and a connecting wall 76 that connects the lower ends of the left and right arm portions 75 to each other. Brackets 77 are fixed to the left and right sides of the rear part of the planting frame 18 by bolts and the like, and the upper ends of the left and right arm portions 75 of the support member 70 are attached to the left and right brackets 77 via a support shaft 78 so as to rotate around the axis in the left and right direction. Is rotatably supported by the support member 70, and the support member 70 is swingable back and forth.

Further, the bracket 77 is provided with a stopper 79 that comes into contact with the support member 70 and restricts the forward swing of the support member 70. The scraper 69 is composed of two members, an upper scraper member 72 and a lower scraper member 73. As shown in FIGS. 1, 8 and 9, the upper scraper member 72 is a metal plate (for example, a stainless plate,
A hard plate material such as an iron plate). The front side is composed of an arc-shaped recess along the outer shape of the upper part of the planting cup 41, and is abutted on the upper part of the rear structure 41B. Construct 41B
Scraping part 74 for scraping off the soil attached to the upper part of the outer surface of the
Are formed.

The upper scraper member 72 may be made of any hard material, but resin and wood have a problem in durability. The lower scraper member 73 is formed in a rectangular shape from an elastic plate such as a rubber plate, and projects (protrudes) slightly ahead of the upper scraper member 72. The biasing means 71 is
In the present embodiment, it is composed of a tension coil spring, one end side of which is hooked on a spring hook portion 80 provided on one arm portion 75 of the support member 70, and the other end side of the biasing means 71 is of the bracket 77. Planted frame 18 placed in front
Spring hook portion 8 provided on the bracket 81 fixed to the
It is hooked at 4.

Further, the spring hooking portion 84 has a male screw formed on the outer peripheral surface thereof, penetrates the support wall 85 provided on the bracket 81, and is disposed in front of and behind the support wall 85 to form the male screw portion. It is fixed by a nut 86 screwed to and is configured so that the biasing force (spring pressure) can be adjusted by advancing and retracting the spring hook portion 84. Also,
A bracket 86 is provided on the lower portion of one arm portion 75 of the support member 70 so as to project forward, and a roller (guided member) that abuts on the guide surface 66 of the guide member 64 and rolls. 87 is rotatably supported around a shaft center in the left-right direction via a support shaft 88.

In the scraper device 68 having the above structure, when the planting body 31 is lifted from the lowermost position, the guide surface 66 of the guide member 64 contacts the roller 87, and the roller 8
7 rolls on the upper part of the guide surface 66, so that the support member 70
Swings around the support shaft 78 rearward (in the direction of arrow E in FIG. 1), the scraper 69 escapes rearward, and the scraper 69 comes into contact with the flange 38 of the rear structure 41B of the planting cup 41. avoid. Further, the roller 87 rolls under the guide surface 66, so that the scraper 69 gradually moves to the planting cup 4.
1, the scraper 69 is guided immediately below the flange 38 of the rear structure 41B.

In this way, the scraper 69 comes into contact with the upper part of the rear structural member 41B when the planting body 31 is slightly raised from the lowermost position, and the planting body 31 is raised, whereby the scraper 69 is raised. At 69, the soil adhering to the outer surface of the rear structural body 41B is scraped off. When the scraper 69 scrapes off the soil attached to the middle part from the upper part of the rear side structural body 41B, the lower scraper member 73 causes the rear side structural member 41B.
By being pressed by B and elastically deformed, the scraping portion 74 of the upper scraper member 72 comes into contact with the outer surface of the rear structural body 41B to scrape off the soil.

At this time, the upper scraper member 72 abuts on the outer surface of the rear side structure 41B so as to be substantially orthogonal thereto. However, if the upper scraper member 72 is formed of an elastic body, the rear side scraper member 72 is There is a possibility that the upper scraper member 72 is elastically deformed by being pressed against the structural body 41 (pressed by the rear structural body 41B), but in the present embodiment, since the upper scraper member 72 is formed of a hard material, There is no such thing. Further, when scraping off the soil attached to the lower portion of the rear structural body 41B by the scraper 69, the upper scraper member 72 separates from the outer surface of the rear structural body 41B, and the lower scraper member 73 is restored while being restored. Side structure 41B
Scratch the soil against the outer surface of the.

At this time, since the lower scraper member 73 abuts the outer surface of the rear structural body 41B so as to cross it obliquely, the lower scraper member 73 does not have to deal with the pressing force from the rear structural body 41B and can be satisfactorily processed. Scrape off the soil. Further, the lower scraper member 73 is backed up by the hard upper scraper member 72. In addition, the structure 4 on the front side of the planting cup 41
The scraper for scraping off the soil adhering to the outer surface of 1A is not provided because the planting cup 41 is moving forward as the traveling body 1 moves forward, and the front-side structure 41A is planted when rising. Since the front surface of the inner surface of the hole is rubbed, the soil does not adhere much to the outer surface of the front structural member 41A.

FIG. 10 shows another embodiment of the planting body 31, which is provided with a cup opening lever 89 for forcing the planting body 31 to open the planting cup 41. The plant 31 is different from the planted body 31 of the above embodiment, and the other points are the same as those of the above embodiment. If soil adheres to the inside of the planting cup 41, it must be removed promptly to adversely affect the planting work such as the posture of the planting being deteriorated. However, some force is required to open the planting cup 41. It is necessary, and it takes a great deal of effort to clean the inside of the planting cup 41 in an unreasonable posture while opening the planting cup 41 with one hand.

Therefore, by operating the cup opening lever 89 so that the planting cup 41 can be opened, the planting cup 41 can be opened with a comparatively light force, and an unreasonable posture. Even if you don't collect
The inside of the can be easily cleaned. The cup opening lever 89 has a mounting plate 6 for mounting the guide member 64.
5 is extended to the front and a cup opening lever 89 is fixed to this extension portion 65A, and the planting cup 41 is opened by pulling the cup opening lever 89 rearward.

The cup opening lever 64 may be provided on one side of the front and rear constituent members 41A and 41B. As shown in FIGS. 11 and 12, on the left and right sides of the bonnet 5 and above, the seedling tray T in a state where seedlings are raised.
A spare seedling stand 90 for placing the seedlings is provided, and an empty tray stand 91 for placing an empty seedling tray T after the seedlings have been taken out is provided diagonally above and to the left of the bonnet 5. There is. Mounting members 92 made up of square pipes and the like in the front-rear direction are fixed to the left and right sides of the vehicle body 3, and the lower ends of the support frames 93 formed in a side view gate shape by pipe members and the like are attached to the left and right mounting members 92, respectively. It is fixed, and the upper and lower three stages of the preliminary seedling stand 90 are supported by the left and right support frames 93, respectively.

The left and right support frames 93 are a pair of front and rear support rods 94 formed of a pipe material or a solid bar material.
Are linked by. The right side of each support rod 94 is formed in a straight line in the left-right direction, and the seedling tray T is placed on the right side of the front and rear support rods 94 so that the front and rear support rods 94 are inserted between the pot portions of the seedling tray T. By the seedling tray T
Is configured to be able to be placed and held. The right side of the front and rear support rods 94 is a spare seedling stand 90 on which the seedling tray T in which seedlings have been raised is placed.

In the middle of the preliminary seedling stand 90 in the left-right direction, there is provided a linear control rod 95 in the front-rear direction which is fixed to the lower portion of the support rod 94 and is formed of a pipe material or a solid rod material. The seedling tray T is provided, and when the seedling tray T is placed on the preliminary seedling placing table 90, by placing the seedling tray T so that the regulating rod 95 is inserted between the pot portions of the seedling tray T, The lateral position of the seedling tray T is regulated. The front and rear support rods 94 are connected and reinforced by the regulation rod 95, and the seedling tray T is also supported by the regulation rod 95.

Further, each support rod 94 is bent downward at a midway portion in the lengthwise direction, and the left side of each support rod 94 is formed into an inclined shape which moves downward as it goes outward in the left-right direction. Further, each support rod 94 is bent on the left end side so as to be inclined so as to move upward as it extends further outward in the left-right direction. On the left side of this front and rear support rod 94,
By mounting the seedling tray T so that the supporting rod 94 is inserted between the pot portions of the seedling tray T, the seedling tray T can be placed and held.
The left side of 4 is an empty tray holder 91 on which the empty seedling tray T after taking out the seedlings is placed.

A restriction frame 96 is provided on the empty tray holder 91. The restriction frame 96 is formed by bending a pipe material or a solid bar material, and is formed with front and rear frame portions 96A and 96B and a side frame portion 96C that connects the right end sides of the front and rear frame portions 96A and 96B. The front and rear frame portions 96A and 96B are formed in a C-shape with the attachment portion 96D extending from the left end side and attached to the support frame 93. The front and rear frame portions 96A and 96B are formed so as to be inclined so as to move downward inward in the left-right direction, and
The seedling tray T is formed between the front and rear frame portions 96A and 96B at intervals such that the longitudinal direction can be arranged in the front and rear direction.

The side frame portion 96C is an empty tray holder 91.
The front and rear support rods 94 are reinforced by being arranged through the lower side of the front and rear sides, and the front and rear support rods 94 are reinforced, and when the seedling tray T is placed on the empty tray holder 91, By placing the seedling tray T so that the frame portion 96C is inserted between the pot portions of the seedling tray T, the position of the seedling tray T in the obliquely vertical direction along the left side of the support rod 94 is regulated. When the seedling tray T is placed on the empty tray holder 91, the empty seedling tray T is inserted between the front and rear frame portions 96A and 96B of the regulation frame 96 from the upper side, and as shown in FIG. Move the seedling tray T in the direction of arrow F,
The seedling tray T is placed on the empty tray stand 91.

In the empty tray holder 91 having the above-described structure, even if the empty seedling tray T placed is flapped by wind or the like, the seedling tray T is supported by the regulation frame 96, especially the front and rear frame portions 96A and 96B. It will not fly off the rod 94 easily. Therefore, it suffices to place the empty seedling tray T on the empty tray holder 91, and the work can be performed easily. In addition, as an empty tray stand for placing an empty seedling tray,
There is one that is mainly composed of a pair of front and rear support rods that are arranged in a straight line in the left-right direction above the bonnet, but in this type, the empty seedling tray that was placed flaps due to the wind, etc. Since it may come off and fly, a pressing metal fitting for holding the placed seedling tray is required, and this pressing metal is biased by a spring in a direction of pressing the seedling tray.

Therefore, in this one, when placing an empty seedling tray, hold the seedling tray with one hand and lift the holding metal fitting against the spring force with the other hand to hold the seedling holding metal fitting. You have to do the work of sandwiching it underneath. In addition, this work is usually performed without stopping the running of the transplanter, and the operator's body is in an unreasonable posture because it is between the ridges, which makes the work difficult. In particular, it is difficult if the preliminary seedling stand is provided on the side of the bonnet in the upper and lower three stages, but in the present embodiment, such a situation does not occur, and the work can be easily performed without taking an unreasonable posture.

The present invention is not limited to the one shown in the above-mentioned embodiment, and is also applied to a riding type transplanter, a transplanter of a type pulled by a tractor, or a manual type simple transplanter. It is what is done.

[0045]

EFFECTS OF THE INVENTION According to the present invention, a planting hole is formed in the field while being supported so as to be able to move up and down, plunging into the field and opening the field, and the seedlings held inside are planted in the hole. In a planting device having a planting cup configured to drop, when the planting cup rises, abut on the outer surface of the planting cup, an upper scraper member for scraping off the soil attached to the top, By installing a scraper consisting of a lower scraper member that scrapes off the soil attached to the lower part, a large planting cup, which is used for tobacco transplant, has a large conical shape with a large change in diameter as it goes upward. Even with the planting cup to be presented, the soil adhered to the outside can be removed well.

Further, the upper scraper member is made of a hard material and has a scraping portion that follows the outer shape of the planting cup, and the lower scraper member is made of an elastic body.
Even better soil removal can be performed. Further, in the case where the traveling body is provided with the planting cup and the planting cup is configured to be opened and closed forward and backward by the pair of front and rear constituents, the traveling body moves forward and the planting cup rises. Soil does not easily attach to the front structure. Therefore, by adopting the scraper to scrape off the soil on the outer side of the rear structure, the soil can be removed without waste.

Further, by providing the lever for forcibly opening the planting cup, the planting cup can be easily opened and the inside of the planting cup can be easily cleaned.

[Brief description of drawings]

FIG. 1 is a partial side sectional view of a main part.

FIG. 2 is a side view of the planting device.

FIG. 3 is an overall side view of the transplanter.

FIG. 4 is a side view of the planting device with the planting cup in the uppermost position.

FIG. 5 is a side view of the planting device with the planting cup at the lowermost position.

FIG. 6 is a front view of the structure of the planting cup.

FIG. 7 is a plan view of a structure of a planting cup.

FIG. 8 is a plan view of the scraper.

FIG. 9 is a plan view of a lower scraper member.

FIG. 10 is a side view of a planting cup or the like showing another embodiment.

FIG. 11 is a plan view of a preliminary seedling stand and an empty tray stand.

FIG. 12 is a front view of a preliminary seedling stand and an empty tray stand.

[Explanation of symbols]

41 Planting cup 41A Front side structure 41B Rear structure 69 scraper 72 Upper scraper 73 Lower scraper 74 scraping part 89 lever

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A01C 11/00-11/02 303

Claims (4)

(57) [Claims] 1. A structure which is supported so as to be able to move up and down, descends, plunges into a field, and opens to form a planting hole in the field and drop seedlings held therein into the planting hole. In the planting device provided with the planting cup, when the planting cup rises, the upper scraper member that contacts the outer surface of the planting cup and scrapes off the soil attached to the upper portion, and the soil attached to the lower portion A planting apparatus comprising a scraper including a lower scraper member to be scraped off. 2. The upper scraper member is made of a hard material and has a scraping portion along the outer shape on the upper side of the planting cup, and the lower scraper member is made of an elastic body. Item 1. The planting device according to item 1. 3. The planting cup is configured to open and close forward and backward by a pair of front and rear components, and the scraper scrapes off soil on the outside of the rear component.
Or the planting device according to 2. 4. The planting device according to claim 1, further comprising a lever for forcibly opening the planting cup.