Transplant device and transplant method

Abstract

To solve a conventional problem of insufficient amount of soil cover which forms a soil cover ring by a trapezoidal soil cover ring at a transplanted seedling such as a bulb, the soil cover being made by the soil cover ring, specifically, the conventional problem cannot transplant a seedling in a furrow groove in the field where the furrow is formed and cannot sufficiently cover by a trapezoidal soil cover ring.SOLUTION: A transplant device includes a seat part 6 at an intermediate position in a front-rear direction of a travel vehicle 1 that travels on a right-left pair of rails 5 installed in a field. An operator is seated on the seat part 6 and manually transplants a transplanted object N in a furrow groove 3 in the field. The transplant device also includes a soil cover device 10 which covers soils on the transplanted object N by mechanically collapsing a furrow 2 on a rear side of the seat part 6.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to implantation devices and methods. [Background technology]

[0002] Conventionally, a configuration in which a soil covering ring is formed using a trapezoidal ring and transplanted seedlings, bulbs, or the like are covered with soil has been publicly known (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2004-8119 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned known example, the soil is covered by a soil cover ring, so there is a problem that the amount of soil covered is small. In other words, there is a problem in that when seedlings are transplanted into the furrows of a ridged field, the trapezoidal soil cover ring cannot adequately cover them with soil. The present application aims to provide an inexpensive transplanting device and transplanting method that are simply configured and specialized for transplanting seedlings, and that can reliably and simply transplant while facilitating reliable soil covering. [Means for solving the problem]

[0005] The invention of claim 1 is a transplantation device having a seat 6 at the center position between the front and rear of a traveling cart 1 that runs on a pair of rails 5 laid on the left and right sides of the field, where an operator sits and manually plants transplanted plants N in furrows 3 in the field, and a soil covering device 10 behind the seat 6 that mechanically breaks up the ridges 2 and covers the transplanted plants N with soil. The invention of claim 2 is a transplanting device in which a work space 60 is provided between the seating portion 6 and the soil covering device 10, where an operator seated on the seating portion 6 can plant transplanted plants N in the furrows 3. The invention of claim 3 is a transplanting device in which a soil covering device 10 is provided at the rear of the traveling carriage 1 and has a soil covering body 17 that moves within the ridges 2, breaks up the ridges 2, and covers the transplanted material N in the ridge furrows 3 with soil, and the soil covering body 17 of the soil covering device 10 is configured to be switchably rotated between a working position located within the ridges 2 on the traveling carriage 1 side and a non-working position above the traveling frame 22 of the traveling carriage 1. The invention of claim 4 is a transplanting device in which the soil covering body 17 is attached to the tip of an arm 20 that is freely rotatable on a left-right rotating support shaft 16 provided on the running cart 1, and a plurality of the soil covering bodies are arranged side by side in the axial direction of the rotating support shaft 16 to correspond to a plurality of ridges 2. The invention of claim 5 is a transplanting device in which the soil covering device 10 is configured so that multiple soil covering bodies 17 on the left and right sides can be freely switched between a working position and a non-working position as a single unit, and is provided with at least a holding mechanism 30 for holding each soil covering body 17 in the working position. The invention of claim 61 is a transplanting device in which, when the soil covering body 17 is rotated upward to a non-working position, the arm 20 abuts against a stopper 35 provided on the running cart 1 side to maintain the non-working state, and this stopper 35 serves both as a position maintaining member for the soil covering body 17 and as a connecting member for connecting the left and right running frames 22 of the rear cart 41. The invention of claim 7 is a transplantation device in which the running cart 1 is formed so as to be separable into a front cart 40 having a seating portion 6 and a rear cart 41 having a soil covering device 10, and a connection mechanism 45 is provided between the rear cart 41 and the front cart 40 so that the connection can be made and disconnected with a single operation. The invention of claim 8 is a transplantation device in which the connecting mechanism 45 is composed of a connecting body 46 rotatably attached to the front cart 40, an engaging body 48 provided at the tip of the connecting body 46, and a support plate 50 provided on the rear cart 41 having an engaging groove 49 with which the engaging body 48 engages. The invention of claim 9 is a transplantation device in which a pair of front and rear running wheels 9 are provided on the left and right running frames 22 of the rear cart 41, and the axle 9B of the front running wheel 9A is positioned forward of the engagement body 48 engaged with the engagement groove 49 of the connecting mechanism 45. The invention of claim 10 is a transplantation method in which a traveling carriage 1 is placed on rails 5 laid in advance on the top surface of both the left and right ridges 2 of a group of left and right rows of ridges 2 that are formed in multiple rows in the left-right direction and long in the front-to-back direction, the soil covering body 17 of the soil covering device 10 of the traveling carriage 1 is positioned within each ridge 2, and an operator seated on the seat 6 of the traveling carriage 1 manually plants transplanted plants N in a horizontal row in the ridge furrows 3.After planting the transplanted plants N in the group of ridge furrows 3, the traveling carriage 1 is driven forward a predetermined distance from the already planted transplants N to mechanically cover the already planted transplants N with soil, and when the traveling distance has been traveled, the traveling carriage 1 is stopped and the transplanting and soil covering operations are repeated. The invention of claim 11 is a transplantation method in which an operator seated on the seat 6 of the traveling cart 1 positions the guide cord 82 of the traveling cart 1 so that it is in a horizontal row in a group of furrows 3, and in this state, inserts a guide body 84 into the field in accordance with a front / rear confirmation body 85 provided on the traveling cart 1 so that it is positioned in the field to be the next planting location, a predetermined distance forward from the guide cord 82, and in this state, manually plants the transplants N in one or more rows in the front / rear direction. Once the transplanted plants N have been planted in the group of furrows 3, the traveling cart 1 is driven forward until the guide cord 82 abuts against the guide body 84 to mechanically cover the already planted transplants N with soil, and when the guide cord 82 abuts against the guide body 84, the traveling cart 1 is stopped and the marker setting work of the guide body 84, and the planting work and the soil covering work are repeated. Effect of the Invention

[0006] In the invention of claim 1, a seat 6 is provided at the front-to-rear midpoint of a traveling cart 1 that travels on a pair of rails 5 laid on the left and right sides of the field, on which an operator sits and manually plants transplants N in the furrows 3 of the field, and a soil covering device 10 is provided behind the seat 6 for mechanically breaking up the ridges 2 and covering the transplants N with soil.Therefore, a worker seated on the traveling cart 1 in the furrows 3 manually plants the transplants N in the container 7 into the furrows 3, and once the transplants N have been planted in all of the furrows 3, the traveling cart 1 is moved forward, and as it moves forward the soil covering device 10 mechanically breaks up the ridges 2 and covers them with soil. By repeating this process, the transplanting work can be made easier. Therefore, by combining highly accurate manual planting work with mechanical soil covering, a transplanting device of simple configuration that achieves both high work accuracy and work efficiency can be provided at low cost. In the invention of claim 2, a work space 60 is provided between the seating portion 6 and the soil covering device 10, where an operator seated on the seating portion 6 can plant transplanted plants N in the furrows 3, making it easy to perform manual planting work. In the invention of claim 3, a soil covering device 10 is provided at the rear of the traveling carriage 1, and is configured to have a soil covering body 17 that moves within the ridges 2, breaks the ridges 2, and covers the transplant N in the ridge furrow 3 with soil.The soil covering body 17 of the soil covering device 10 is configured to be able to rotate on the traveling carriage 1 side between a working position located within the ridge 2 and a non-working position above the traveling frame 22 of the traveling carriage 1, so that the soil covering body 17 moving in the center of the ridge 2 can mechanically push the soil of the ridge 2 that has been broken into the left and right ridge furrows 3, allowing the transplant N to be easily covered with soil.Since the soil covering body 17 can be switched between a working position located within the ridge 2 and a non-working position above the ridge 2, workability can be improved. In the invention of claim 4, the soil covering body 17 is attached to the tip of an arm 20 which is freely rotatable on a left-right rotating support shaft 16 provided on the running cart 1, and is arranged in parallel in the axial direction of the rotating support shaft 16 to correspond to the multiple ridges 2.Therefore, the planting of the transplants N and covering with soil can be performed simultaneously in a group of multiple ridge furrows 3 arranged in parallel in the left-right direction, thereby improving work efficiency. In the invention of claim 5, the soil covering device 10 is configured so that multiple soil covering bodies 17 on the left and right sides can be freely switched between a working position and a non-working position as a single unit, and is provided with at least a holding mechanism 30 for holding each soil covering body 17 in the working position.Therefore, when the soil covering body 17 is moved through the center of the ridge 2 to break up the ridge 2, the movement of the soil covering body 17 is firmly supported against the resistance of the soil, and the soil covering work can be carried out reliably. In the invention of claim 6, when the soil covering body 17 of the soil covering device 10 is rotated upward to the non-working position, the arm 20 abuts against a stopper 35 provided on the running carriage 1 side to maintain the non-working state, so that the running carriage 1 can be transported with the soil covering body 17 rotated upward and the ridges 2 in the field can be transported without collapsing.Furthermore, since this stopper 35 is configured to serve both as a position maintaining member for the soil covering body 17 and as a connecting member that connects the left and right running frames 22 of the rear carriage 41, the configuration of the rear carriage 41 can be simplified and the rear carriage 41 can be made lighter. In the invention of claim 7, the running cart 1 is formed so as to be separable into a front cart 40 having a seating portion 6 and a rear cart 41 having a soil covering device 10, and a connecting mechanism 45 is provided between the front cart 40 and the rear cart 41 which can be connected and disconnected with a single operation. Therefore, when transporting the transplantation device, the front cart 40 and the rear cart 41 can be separated, making it easy to transport and set up. In the invention of claim 8, the connecting mechanism 45 is composed of a connecting body 46 rotatably attached to the front bogie 40, an engaging body 48 provided at the tip of the connecting body 46, and a support plate 50 provided on the rear bogie 41 having an engaging groove 49 with which the engaging body 48 engages.Therefore, the connecting work can be completed simply by rotating the connecting body 46 and engaging the engaging body 48 with the engaging groove 49, improving workability. In the invention of claim 9, a pair of front and rear running wheels 9 are provided on the left and right running frames 22 of the rear cart 41, and the axle of the front running wheel 9A is positioned forward of the engaging body 48 engaged with the engaging groove 49 of the connecting mechanism 45.Therefore, when the running cart 1 is moved forward to perform soil covering work, the soil covering device 10 can be prevented from causing the rear running wheel 9B to lift up relative to the center of the front running wheel 9A due to moment. In the invention of claim 10, a traveling carriage 1 is placed on rails 5 laid in advance on the upper surface of both the left and right ridges 2 of a group of left and right rows of ridges 2 that are multiple in the left and right direction and long in the front and rear direction, a soil covering body 17 of a soil covering device 10 of the traveling carriage 1 is positioned within each ridge 2, and an operator seated on a seating part 6 of the traveling carriage 1 manually plants transplanted plants N in a horizontal row in the ridge furrows 3. After the transplanted plants N have been planted in the group of ridge furrows 3, the traveling carriage 1 is driven forward a predetermined distance from the already planted transplants N to mechanically cover the already planted transplants N with soil, After traveling a predetermined distance, the traveling cart 1 is stopped and the transplanting and soil covering operations are repeated, so that an operator seated on the traveling cart 1 in the furrows 3 manually plants the transplants N in the container 7 into the furrows 3. Once the transplanted plants N have been planted in all of the furrows 3, the traveling cart 1 is moved forward one row, and as it moves forward the soil covering device 10 mechanically breaks up the ridges 2 and covers them with soil. By repeating this process, the transplanting operation can be made easier, and by combining manual planting operation and mechanical soil covering operation, it is possible to achieve both work precision and work efficiency. In the invention of claim 11, the worker seated on the seat 6 of the traveling cart 1 positions the guide cord 82 of the traveling cart 1 so that it is aligned horizontally in a group of furrows 3, and in this state, the worker inserts the guide body 84 into the field in accordance with the front and rear confirmation body 85 provided on the traveling cart 1 so that it is positioned in the field that is the next planting location forward from the guide cord 82, and in this state, the transplant N is manually planted. When the transplanted plant N is planted in the group of furrows 3, the worker guides the traveling cart 1. The carriage 1 is driven forward until the guide string 82 abuts against the inner body 84, mechanically covering the already planted transplants N with soil, and when the guide string 82 abuts against the guide body 84, the carriage 1 is stopped and the marker setting work of the guide body 84 and the planting work and soil covering work are repeated, so that the carriage 1 can be driven and stopped accurately without relying on intuition, and the transplants N can be transplanted in an orderly manner not only left and right but also front and rear, allowing for good seedling cultivation. [Brief description of the drawings]

[0007] [Figure 1] FIG. 2 is a side view of the transplantation device with the soil cover in the working position and the non-working position. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] A longitudinal front view of the soil covering body of the soil covering device positioned on a ridge. [Figure 6] FIG. [Figure 7] FIG. 2 is a perspective view of the rear cart and a longitudinal sectional side view of the planting state. [Figure 8] FIG. [Figure 9] FIG. [Figure 10] An image of the planting state (longitudinal rear view and longitudinal side view). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] To explain one embodiment of the transplantation device of the present invention, reference numeral 1 denotes the running cart of the transplantation device, and in order to facilitate understanding of the present invention, the description will be given with reference to the forward movement direction of the running device 1 of the transplantation device, indicating directions such as front, back, left and right, however, the present invention is not limited to this. In a tilled field, multiple ridges 2 are formed in the front-to-back direction and furrows 3 are formed between the left and right ridges 2. Transplants N such as lily bulbs (pot seedlings of tomatoes, leafy stem vegetables (green onions), pot seedlings of roses for cut flowers, carnations, and chrysanthemums) are planted at the bottom of the furrows 3, and after planting, the ridges 2 are collapsed and the transplants N are covered with soil. That is, a seat 6 where an operator sits and performs transplanting work is provided at the midpoint of the front to rear of the traveling cart 1 which runs on a pair of rails 5 laid on the left and right sides of the field, and a space is provided in the center of the left and right parts of the seat 6 for placing a container 7 containing transplants N to be transplanted into the furrows 3 in the field.

[0009] In order to make the present invention easier to understand, the term "ridges" is used in the field. In normal agricultural work, a "ridge" refers to the part on top of which seedlings are planted. In the present invention, however, as described above, the part formed by planting transplants N in furrows 3 and then piling soil on both sides of furrows 3 to cover the transplants N is referred to as "ridge 2" in this application (Figure 10). Ridge 2 is synonymous with "soil covering mound," and the configuration is not limited by the use of this term. A pair of rails 5 are laid on both the left and right sides of a series of two ridges arranged in parallel across the left and right of the field, and a traveling cart 1 is placed on the rails 5 and travels along them to carry out transplanting work. The traveling cart 1 has running wheels 9 that run on rails 5 installed in the field, and a base portion 11 having a pair of left and right seats 6 on which an occupant can sit is provided on the upper surface of the front part of the traveling cart 1, and a soil covering device 10 is provided behind the seats 6 for breaking up the ridges 2 and covering the transplant N with soil.

[0010] The soil covering device 10 is provided with a pair of left and right supports 13 standing upward at the rear of the traveling carriage 1, with tubular members 15 fixedly provided on the left and right supports 13, and a rotary support shaft 16 in the left and right direction being fitted to the left and right tubular members 15 so as to be freely rotatable. The rotary support shafts 16 are provided with soil covering bodies (plow bodies) 17 in the same number as the number of ridges in the field. The soil covering bodies 17 are formed in a triangular shape in a plan view and have left and right collapsing surfaces 18, with the central ridge portion 19 of the left and right collapsing surfaces 18 positioned at the left and right center of the ridges, and when the soil covering bodies 17 are moved forward within the ridges 2, the collapsing surfaces 18 of the soil covering bodies 17 move while distributing the soil of the ridges 2 towards both the left and right sides, collapsing the ridges 2, and the collapsed soil enters the ridge furrows 3 and covers the transplants N with soil. Therefore, the soil covering device 10 can break up the soil and cover the transplant N in the furrow 3 with soil simply by moving the soil covering body 17 within the ridge 2.

[0011] In addition, among the group of ridges 2, the soil covering body 17A which breaks down both the left and right sides is configured to have a breaking surface 18 on one side which breaks down on the inside. The soil covering body 17 is attached to the tip of an arm 20 whose base is fixed to a left-right rotating support shaft 16 provided on the traveling cart 1, and is configured by arranging multiple soil covering bodies 17 side by side in the axial direction of the rotating support shaft 16 to correspond to multiple groups of ridges 2. Therefore, the transplants N planted in a plurality of furrows 3 arranged side by side in the left-right direction are covered with soil by simultaneously breaking down the plurality of ridges 2 in a parallel manner with a plurality of soil covering bodies 17.

[0012] That is, at the rear of the traveling carriage 1, there is provided a soil covering device 10 which is configured to have a soil covering body 17 which moves within the ridges 2, breaks up the ridges 2, and covers the transplanted material N in the ridge furrow 3 with soil, and the soil covering body 17 of the soil covering device 10 is configured to be able to rotate between a working position located within the ridges 2 on the traveling carriage 1 side, and a non-working position above the traveling frame 22 of the traveling carriage 1. The switching rotation configuration is arbitrary, but as one example, a soil cover body 17 is fixed to the tip of an arm 20, a shaft tube 24 is provided at the base of the arm 20, the shaft tube 24 is fitted onto the outer periphery of the rotating support shaft 16, and the shaft tube 24 and the rotating support shaft 16 are fixed together by a bolt 25.

[0013] Therefore, the base of the arm 20 of the soil cover body 17 rotates around the rotating support shaft 16, and the rotating support shaft 16 rotates relative to the tubular member 15 fixedly mounted on the support body 13, thereby causing the multiple soil cover bodies 17 to switch integrally between the working position and the non-working position. The soil covering device 10 is provided with at least a holding mechanism 30 for holding the soil covering body 17 at the working position. The holding mechanism 30 forms the rotating support shaft 16 from a hollow tubular member having a predetermined diameter, fits it into the tubular member 15 of the support body 13, forms a through hole 31 that passes through the rotating support shaft 16 and the tubular member 15, engages a lock pin 32 with the through hole 31, locks the rotation of the rotating support shaft 16, and holds the soil cover body 17 in the working position.

[0014] Reference numeral 33 denotes a ring provided on the lock pin 32, which acts as a retainer for the lock pin 32 when it is fitted onto the outer periphery of the tubular member 15 with the lock pin 32 inserted and engaged into the through hole 31 (FIG. 9). Further, left and right stoppers 35 are provided on the left and right supports 13, and the stoppers 35 receive the arm 20 of the soil cover 17 that has been rotated upward to the non-working position, and hold it in the non-working position. Therefore, if the traveling carriage 1 is transported with the soil cover 17 rotated upward, transportation can be performed without destroying the ridges in the field, which is preferable.

[0015] The traveling trolley 1 has a seating portion 6 and is formed so as to be separable into a front trolley 40 on which a container 7 can be placed, and a rear trolley 41 having a soil covering device 10, and a coupling mechanism 45 is provided between the front trolley 40 and the rear trolley 41 which can be coupled and uncoupled with a single operation. The traveling cart 1 is often used in fields inside vinyl greenhouses, and when transplanting into a series of multiple parallel rows of furrows 3 in the left-right direction is completed, the transplanting device is transported to an adjacent series of furrows 3 for transplanting work. At this time, if the front cart 40 and the rear cart 41 can be separated, transportation and installation will be easier.

[0016] A coupling mechanism 45 that can be coupled and uncoupled with a single operation is provided between the front bogie 40 and the rear bogie 41 of the traveling bogie 1, and the coupling mechanism 45 is configured to have a pair of left and right coupling bodies 46 in the front-rear direction. The coupling bodies 46 have their base (front end) attached to the front bogie 40 side by a mounting shaft 47 so as to be freely rotatable, and an engagement body 48 is provided at the tip (rear end) of the coupling body 46, which is configured to be freely engaged and disengaged with an engagement groove 49 provided on the rear bogie 41 side. The engagement groove 49 is formed in a support plate 50 provided at the front of the rear bogie 41 so as to open upward, and the engagement body 48 is configured to engage with the engagement groove 49 of the support plate 50 from above.

[0017] A locking body 51 for preventing the engagement body 48 engaged with the engagement groove 49 from coming off is attached to the rear of the support plate 50 of the rear side cart 41 so as to be rotatable about a shaft 51A. An operating lever 52 is integrally provided on the lock body 51. When the operating lever 52 is lifted and operated, the locking body 51 rotates rearward about the shaft 51A and retreats from the engagement groove 49. When the lifted operating lever 52 is released, the operating lever 52 rotates downward by its own weight, rotating the locking body 51 to the locked position.

[0018] A spring may be provided on the shaft 51A to hold the lock body 51 in the locked position. Therefore, when the front cart 40 is positioned at a predetermined position relative to the rear cart 41 and the engagement body 48 is engaged with the engagement groove 49 from above, the engagement body 48 moves downward against the weight of the operating lever 52 while retracting the locking body 51, and engages with it, and when the engagement body 48 has passed, the locking body 51 returns to its original position under the weight of the operating lever 52, and the locking body 51 is positioned above the engagement body 48, locking the engagement body 48 of the connecting body 46 from disengaging from the engagement groove 49.

[0019] When the operating lever 52 is rotated upward, the locking body 51 retreats from the engagement groove 49, thereby allowing the engagement body 48 to disengage from the engagement groove 49 and releasing the connection between the rear bogie 41 and the rail 5. Therefore, when the front bogie 40 and the rear bogie 41 of the traveling bogie 1 are connected by the connector 46, the front bogie 40 and the rear bogie 41 travel as a unit.

[0020] Between the seating portion 6 of the traveling cart 1 and the soil covering device 10 of the rear cart 41, a work space 60 of a predetermined size is formed in which an operator sits on the seating portion 6 of the traveling cart 1 and covers the transplants N planted in the furrows 3 with soil. The seating part 6 of the front cart 40 is set at a predetermined height so that the plant N can be placed in the furrow 3 while seated on the seating part 6, and furthermore, manual work of leveling the ridges 2 mechanically broken by the soil covering body 17 to the furrow 3 to correct the soil cover can also be performed.

[0021] Therefore, the work of breaking up the ridges 2 is performed mechanically by the soil covering device 10, and the placing and planting work of placing the transplanted plants N in the ridge furrows 3 is performed manually by an operator.When planting of the transplanted plants N in one or more rows in a horizontal line in the forward and backward directions is completed, the traveling cart 1 is moved forward and backward a predetermined distance to carry out the next planting work, and during the forward movement the soil covering body 17 breaks up the ridges 2 and covers the transplanted plants N with soil, making the overall transplanting work easier.

[0022] In this embodiment, ridges 2 are formed in the field to a height of about 20 to 30 centimeters, and the soil cover 17 moves to a position 10 to 15 centimeters below the ridges 2 to break them up and cover the transplants N with soil. A traveling motor 65 is provided at a predetermined position on the underside of the front cart 40 of the traveling cart 1, and a drive gear 66 is provided on the output shaft of the traveling motor 65. A left-right rotation transmission shaft 67 is provided near the traveling motor 65, and a passive gear 68 is provided on the rotation transmission shaft 67. A chain 69 is wound around the passive gear 68 and the drive gear 66.

[0023] An intermediate gear 70 is provided on both the left and right sides of the rotary transmission shaft 67, and a driven gear 71 is provided on the running wheel 9 side. A chain 72 is wound around the intermediate gear 70 and the driven gear 71. Reference numeral 75 denotes an operation remote controller, and the operation remote controller 75 is provided with a forward / reverse switch 76 and the like. The rear bogie 41 has a pair of left and right running frames 22 that are long in the front-rear direction, the rear sides of the running frames 22 are connected by a rear frame (stopper) 35, and the front ends of the running frames 22 are formed as free ends.

[0024] For this reason, the stopper 35 is configured to double as the rear frame of the rear bogie 41, contributing to reducing the weight of the rear bogie 41, and the space surrounded by the rear frame (stopper) 35 and the left and right running frames 22 is used as the work space 60. This reduces the weight of the rear carriage 41, making it easier to transport the rear carriage 41 for transplanting to an adjacent group of furrows 3.

[0025] A running frame 22, which is located a predetermined distance (the fore-aft planting distance of the transplant N) forward of the soil covering device 10, is provided with an upwardly rising upright member 80 having a U-shaped cross section, and a plurality of mounting grooves 81 are formed in the upper end of the standing member 80 in the fore-aft direction, and guide strings 82 are attached to the mounting grooves 81 of the left and right standing members 80. The guide cord 82 may be any cord-like material, but in this embodiment it is formed into a ring shape using a so-called elastic rubber cord, and is inserted from the front side of the rear bogie 41 and engaged with the mounting groove 81.

[0026] For this reason, a mounting groove 81 is also formed in the underside of the rear carriage 41 corresponding to the mounting groove 81, so as to restrict the movement of the guide string 82. The guide strings 82 serve as markers for planting the transplants N in a horizontal row in each of a group of multiple furrows 3 in the left-right direction, and mounting grooves 81 are provided in parallel in the front-to-back direction on the upright member 80, allowing the front-to-back planting intervals to be changed depending on the crop.

[0027] The guide strings 82 are markers for the lateral planting intervals, but in addition to the guide strings 82, guide bodies 84 for identifying the front-to-rear planting intervals are inserted into the field, and front-to-rear confirmation bodies 85, which serve as guides for inserting the guide bodies 84, are provided inside the left and right traveling frames 22 so as to be movable in the front-to-rear direction. The front-to-rear confirmation bodies 85 are formed in an L-shape in a plan view, and the guide bodies 84 are inserted on the rear side of the front-to-rear confirmation bodies 85.

[0028] The guide body 84 is inserted into the field before the start of planting work, and when the traveling cart 1 is moved forward after planting, the traveling cart 1 moves away, leaving the guide body 84 in place, and when the traveling cart 1 moves a specified distance forward and backward, the guide string 82 comes into contact with the guide body 84 that was left behind, so the traveling of the traveling cart 1 is stopped, and the guide body 84 that is in contact with the guide string 82 is reinserted behind the front and rear confirmation body 85, and the planting work of the transplant N is performed again, and this process is repeated to perform the transplanting work.

[0029] In this case, if the guide string 82 is made of an elastic material such as a rubber string as described above, the guide string 82 will not break even if it hits the guide body 84, which is preferable for good work efficiency. Running wheels 9 are provided on both the front and rear sides of the running frame 22, and the front running wheel 9A is positioned so that the wheel axle 9B of the front running wheel 9A is located forward of the engaging body 48 of the connecting mechanism 45 that connects the front bogie 40 and the rear bogie 41. This prevents the soil covering device 10 from rising up about the center of the wheel axle 9B due to moment when the traveling carriage 1 is moved forward to perform soil covering work.

[0030] (Operation of the embodiment) The present invention has the above-mentioned configuration. First, the farm field is plowed, and multiple ridges 2 and ridge furrows 3 that are long in the front-rear direction and multiple lateral directions are formed. Next, rails 5 are laid in advance on the top surface of both the left and right sides of a group of ridges 2 in several rows (seven rows in this embodiment) of the numerous ridges located left and right at the back (rear) of the field (Figure 5). For example, when transplanting plant N into six furrows 3, rails 5 are laid in the first furrow 2A and the seventh furrow 2B based on furrow 2A (Figure 5).

[0031] Next, while the soil cover body 17 of the soil cover device 10 of the rear cart 41 is rotated upward and held by the holding mechanism 30, the running wheels 9 of the rear cart 41 are placed on the rails 5. Next, the front cart 40 and the rear cart 41 are connected by a connecting mechanism 45, a container containing the transplanted plants N is placed at a predetermined position on the front cart 40, and an operator sits on the seat 6 of the traveling cart 1.The transplantation device is then moved to the very end (rear side) of the furrow 3 while the soil cover 17 is retracted to a non-working position.

[0032] Next, the soil covering body 17 is rotated downward and positioned in the center of the left and right of the ridge 2, and the guide body 84 is inserted into the ridge 2 where the front and rear confirmation body 85 in this state is positioned, and the transplants N taken out of the container are planted in a horizontal row in each furrow 3 using the guide string 82 as a guide. When planting of one or more rows of transplants N is completed, the traveling carriage 1 is advanced until the guide string 82 comes into contact with the guide body 84, and when the guide string 82 comes into contact with the guide body 84, the traveling of the traveling carriage 1 is stopped, the guide body 84 that is in contact with the guide string 82 is pulled out, and the pulled out guide body 84 is inserted into the field at the position of the front / rear confirmation body 85.

[0033] In other words, since the guide body 84 is simply inserted into the field behind the front / rear confirmation body 85, the traveling cart 1 moves forward leaving the guide body 84 in place, and as the traveling cart 1 moves forward, the guide string 82 hits the guide body 84, allowing the worker to recognize the amount of movement of the traveling cart 1 for one row and stop it from moving.

[0034] Then, the transplanting work and soil covering work (moving work) for the group of furrows 3 described above are repeated, and when transplanting into the group of furrows 3 is completed, each cart of the traveling cart 1 is again split and transported to an adjacent group of two rows of furrows, and the transplanting work is repeated. In this case, the rear cart 41 has a pair of left and right running frames 22 that are long in the front-to-rear direction, the rear sides of the running frames 22 are connected by rear frame stoppers 35, and a work space 60 is provided within the rear cart 41 surrounded by the left and right running frames 22 and the stoppers 35. Therefore, planting work of the transplants N and covering work of the soil can be performed within the spacious work space 60 of the rear cart 41, greatly improving work efficiency.

[0035] In addition, the rails 5 on which the traveling carriage 1 runs are not a requirement, so it is sufficient if they are configured to support the traveling carriage 1 so that it can run, but the rails 5 are placed in a fixed state on the upper surface of the subsidence prevention plate 5A to prevent it from sinking into the ridges 2. The soil covering body 17 is formed in a triangular shape when viewed in a plane, and has collapsing surfaces 18 on both sides of the central ridge 19 that slope downward toward the outside and toward the front. Therefore, when the central ridge 19 is positioned in the center of the left and right sides of the ridge 2 and viewed from the front, the ridge 2 is collapsed and the transplant N is covered with soil. In addition, among the group of ridges 2, the soil covering body 17A which breaks down both the left and right sides has a breaking surface 18 on only one side which breaks down the soil on the inside.

[0036] When the soil cover body 17 is rotated upward to the non-working position, the arm 20 of the soil cover body 17 hits the stopper 35, restricting and holding the rotation, so that when the rear trolley 41 is transported with the soil cover body 17 rotated upward, it can be transported without destroying the ridges in the field, which is preferable. The front bogie 40 and rear bogie 41 of the traveling bogie 1 are connected by a connecting mechanism 45 having a pair of left and right connecting bodies 46, and an engagement body 48 is provided at the tip of the connecting body 46, and an engagement groove 49 with which the engaging body 48 engages is provided at the front side of the rear bogie 41. Therefore, when the connecting body 46 is simply rotated downward, the engaging body 48 engages with the engaging groove 49 of the support plate 50.

[0037] Since the locking body 51 is provided in the engagement groove 49, simply by engaging the engagement body 48 with the engagement groove 49 from above, the engagement body 48 retracts the locking body 51 and moves downward to engage without any special operation, and when the engagement body 48 passes, the locking body 51 returns to its original position above the engagement body 48 to lock the connection body 46 from being separated from the rear bogie 41. Conversely, when the operating lever 52 is lifted, the locking body 51 retreats rearward from the engaging groove 49, thereby allowing the engaging body 48 to disengage from the engaging groove 49 and releasing the connection between the rear bogie 41 and the rail 5.

[0038] Therefore, the connection mechanism 45 can be locked by a single touch operation of engaging the engaging body 48 of the connecting body 46 with the engaging groove 49, and the connection lock can be released by a single touch operation of lifting the operating lever 52. [Explanation of symbols]

[0039] 1...Traveling cart, 2...Furrow, 3...Furrow furrow (excavation furrow), 5...Rail, 6...Seating portion, 7...Container, 9...Traveling wheel, 10...Soil covering device, 11...Pedestal portion, 13...Support body, 15...Cylinder member, 16...Rotary support shaft, 17...Soil covering body, 18...Collapse surface, 19...Ridge portion, 20...Arm, 22...Traveling frame, 24...Axle cylinder, 25...Bolt, 30...Retaining mechanism, 31...Through hole, 32...Lock pin, 35...Stopper, 40...Front cart, 41...Rear cart, 45...Connecting mechanism, 46...Connecting body , 47...mounting shaft, 48...engagement body, 49...engagement groove, 50...support plate, 51...locking body, 51...shaft, 52...operating lever, 53...spring, 60...work space, 65...traveling motor, 66...driving gear, 67...rotating transmission shaft, 68...passive gear, 69...chain, 70...intermediate gear, 71...passive gear, 72...chain, 75...operating remote control, 76...forward / reverse switch, 80...standing member, 81...mounting groove, 82...guide string, 84...guide body, 85...forward / reverse confirmation body, N...implant.

Claims

1. The transplantation device has a seating section 6 at the center of the front and rear of a traveling carriage 1 that travels on a pair of rails 5 laid on the left and right sides of the field, where an operator sits and manually plants a plant N in a furrow 3 in the field, and a soil covering device 10 that mechanically breaks up the furrows 2 and covers the transplant N with soil at the rear of the seating section 6.

2. The transplanting device according to claim 1, wherein a work space 60 is provided between the seat 6 and the soil covering device 10, in which an operator seated on the seat 6 can plant transplanted plants N in the furrows 3.

3. In claim 1, a soil covering device 10 is provided at the rear of the traveling carriage 1, and is configured to have a soil covering body 17 that moves within the ridges 2, breaks up the ridges 2, and covers the transplanted material N in the ridge furrows 3 with soil, and the soil covering body 17 of the soil covering device 10 is configured to be switchably rotated between a working position located within the ridges 2 on the traveling carriage 1 side and a non-working position above the traveling frame 22 of the traveling carriage 1.

4. In claim 3, the soil covering body 17 is attached to the tip of an arm 20 which is freely rotatable on a left-right rotating support shaft 16 provided on the running cart 1, and a plurality of the soil covering bodies 17 are arranged in parallel in the axial direction of the rotating support shaft 16 to correspond to a plurality of ridges 2.

5. In claim 4, the soil covering device 10 is a transplanting device in which multiple soil covering bodies 17 on the left and right sides are integrally configured so that they can be freely switched between a working position and a non-working position, and at least a holding mechanism 30 is provided to hold each soil covering body 17 in the working position.

6. In claim 4, the soil covering device 10 is a transplanting device in which, when the soil covering body 17 is rotated upward to a non-working position, the arm 20 abuts against a stopper 35 provided on the running cart 1 side to maintain the non-working state, and this stopper 35 serves both as a posture maintaining member for the soil covering body 17 and as a connecting member that connects the left and right running frames 22 of the rear cart 41.

7. A transplantation device according to any one of claims 1 to 6, wherein the running cart 1 is formed so as to be separable into a front cart 40 having a seating portion 6 and a rear cart 4 having a soil covering device 10, and a connection mechanism 45 is provided between the rear cart 41 and the front cart 40 which can be connected and disconnected with a single operation.

8. In claim 7, the connecting mechanism 45 is a transplant device composed of a connecting body 46 rotatably attached to the front cart 40, an engaging body 48 provided at the tip of the connecting body 46, and a support plate 50 provided on the rear cart 41 having an engaging groove 49 with which the engaging body 48 engages.

9. In claim 7, a pair of front and rear running wheels 9 are provided on the left and right running frames 22 of the rear cart 41, and the axle 9B of the front running wheel 9A is positioned forward of the engaging body 48 engaged with the engaging groove 49 of the connecting mechanism 45.

10. A traveling carriage 1 is placed on rails 5 laid in advance on the upper surface of both the left and right ridges 2 of a group of left and right rows of ridges 2 each formed in multiple rows in the left-right direction and long in the front-to-back direction, the soil covering body 17 of the soil covering device 10 of the traveling carriage 1 is positioned within each ridge 2, and an operator seated on the seat 6 of the traveling carriage 1 manually plants transplanted plants N in a horizontal row in the ridge furrows 3. Once the transplanted plants N have been planted in the group of ridge furrows 3, the traveling carriage 1 is driven forward a predetermined distance from the already planted transplants N to mechanically cover the already planted transplants N with soil, and when the traveling distance has been reached, the traveling carriage 1 is stopped and the transplanting and soil covering operations are repeated.

11. 10. A transplantation method according to claim 10, in which an operator seated on the seat 6 of the traveling cart 1 positions the guide cord 82 of the traveling cart 1 so that it is in a horizontal row in a group of furrows 3, and in this state, inserts a guide body 84 into the field in accordance with a front / rear confirmation body 85 provided on the traveling cart 1 so that it is positioned in the field to be the next planting location, a predetermined distance forward from the guide cord 82, and in this state, manually plants the transplants N in one or more rows in the front / rear direction. Once the transplanted plants N have been planted in the group of furrows 3, the traveling cart 1 is driven forward until the guide cord 82 abuts against the guide body 84 to mechanically cover the already planted transplants N with soil, and when the guide cord 82 abuts against the guide body 84, the traveling cart 1 is stopped and the marker setting work of the guide body 84, and the planting work and the soil covering work are repeated.

Images