Seedling transplanter

Abstract

To provide a seedling transplanter with an improved work efficiency which prevents the seedling from dried and withered during work due to wind and sunlight and in which a worker does not need to supply water by such as a watering can, the transplanter solving a problem of a conventional seedling transplanter having a sprinkler system for sprinkling water onto a planting device for planting the seedling, in which the water is not sprinkled on the seedling placed on a pre-planting seedling stand which requires the worker to supply water by such as a watering can to prevent the seedling placed on the pre-planting seedling stand from withering, which watering work requiring a heavy-burden and inefficient watering at a high height, and in consideration of an autonomous unmanned rice transplanter, a lack of person who supplies water for a long time will result in a withering of the seedling.SOLUTION: A seedling transplanter having a pre-planting seedling stand 22 in which a plurality of seedling placement frames 23a, 23b stacked on a seedling planting part 4 provided on a vehicle body 2, includes a pre-planting sprinkling device 24 for pre-planting for sprinkling water on the seedling placed above the seedling placement frames 23a, 23b at the topmost stage of the pre-planting seedling stand 22.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a seedling transplanter for transplanting seedlings into a field. [Background technology]

[0002] There is a seedling transplanter equipped with a water sprinkler device that sprinkles water on a planting device that plants seedlings (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-036266 Summary of the Invention [Problem to be solved by the invention]

[0004] However, this system does not sprinkle water on the seedlings loaded on the spare seedling carrier, and workers must water the seedlings loaded on the spare seedling carrier with a watering can or the like to prevent them from withering. Watering at a high position is a difficult task and the work efficiency is low. Furthermore, when considering an autonomous, unmanned rice transplanter, there is no one to water the seedlings, so if the seedlings are not watered for a long time, they will wither.

[0005] To provide a seedling transplanter that has been made in view of the above, which prevents seedlings from drying out and dying due to wind or sunlight during operation, eliminates the need for an operator to water the seedlings with a watering can, etc., and improves work efficiency. [Means for solving the problem]

[0006] The invention described in claim 1 is a seedling transplanter equipped with a seedling planting section 4 on a running body 2 and a spare seedling carrying platform 22 with multiple seedling carrying frames 23a, 23b stacked in layers, and is provided with a spare seedling watering device 24 that sprays water on the seedlings loaded on top of the top seedling carrying frames 23a, 23b on the spare seedling carrying platform 22.

[0007] According to the invention described in claim 1, it is possible to prevent the seedlings loaded on the spare seedling carrier 22 from drying out and withering due to wind or sunlight during the seedling planting work. In addition, there is no need for workers to water the seedlings with a watering can or the like, which improves work efficiency.

[0008] The invention described in claim 2 is the seedling transplanter described in claim 1, which is provided with a seedling carrier watering device 26 for watering the seedlings placed on the seedling carrier 31 of the seedling planting section 4.

[0009] The invention as set forth in claim 3 is the seedling transplanter as set forth in claim 1 or claim 2, wherein the sprinkler parts 24a, 26a of the spare seedling sprinkler device 24 and / or the seedling carrier sprinkler device 26 are provided so as to be rotatable back and forth.

[0010] The invention described in claim 4 is a seedling transplanter described in claim 1 or claim 2, which activates the sprinkler device 24 for the spare seedlings to sprinkle water when the spare seedling detector 23c provided on the spare seedling carrier 22 detects that seedlings are placed on the seedling carrier frames 23a, 23b, and / or activates the sprinkler device 26 for the seedling carrier to sprinkle water when the seedling break sensor 31a provided on the seedling carrier 31 does not detect a seedling break.

[0011] The invention described in claim 5 is a seedling transplanter described in claim 1 that obtains weather information for the current location using the Internet, etc., and determines watering conditions based on meteorological information such as the temperature, humidity, wind speed, and weather of the current location, and automatically controls watering. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a perspective view of a riding rice transplanter according to an embodiment of the present invention. FIG. [Figure 2] FIG. 10 is a side view of the main parts of the spare seedling carrier. [Figure 3] FIG. [Figure 4] FIG. 10 is a perspective view of the front part of a vehicle body showing another embodiment. [Figure 5] FIG. 10 is a perspective view of a main part of a traveling vehicle body showing another embodiment. [Figure 6] FIG. 10 is a perspective view of the rear of a vehicle body showing another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0013] Preferred embodiments of the present invention will now be described with reference to the drawings.

[0014] <Overall structure> FIG. 1 is a perspective view of a riding rice transplanter with a fertilizer applicator, which is one embodiment of the seedling transplanter of the present invention.

[0015] In the riding rice transplanter 1 with fertilizer applicator, a seedling planting unit 4 is attached to the rear of the traveling body 2 via a lifting link device that is raised and lowered by a lifting hydraulic cylinder, and the main body of the fertilizer applicator 5 is provided on the upper rear of the traveling body 2. The left and right directions of the riding rice transplanter 1 as viewed in the forward direction are referred to as left and right, respectively, and the forward and backward directions are referred to as front and rear, respectively.

[0016] <Running vehicle 2> As shown in Figure 1, the traveling vehicle body 2 is a four-wheel drive vehicle equipped with a pair of left and right front wheels 6, 6 and a pair of left and right rear wheels 7, 7, which are drive wheels. A transmission case is disposed at the front of the vehicle body, and front wheel final cases are provided on the left and right sides of the transmission case. The left and right front wheels 6, 6 are attached to left and right front wheel axles that protrude outward from the respective front wheel support parts that can change the steering direction of the left and right front wheel final cases.

[0017] The front end of the main frame is fixed to the rear of the transmission case, and the rear wheel gear case is supported so as to be able to roll freely, with the rear wheel rolling axis set horizontally in the center of the rear end of the main frame as a fulcrum. The rear wheels 7, 7 are attached to the rear wheel axles that protrude outward from the rear wheel gear case.

[0018] The engine is mounted in the center of the aircraft, and the rotational power of the engine is transmitted to the transmission case via a belt transmission and an HST.

[0019] The rotational power transmitted to the transmission case is changed in speed by a transmission inside the transmission case, and then separated into running power and externally extracted power.

[0020] A portion of the running power is transmitted to the front wheel final case to drive the front wheels 6,6, and the remainder is transmitted to the rear wheel gear case to drive the rear wheels 7,7.

[0021] In addition, the externally extracted power is transmitted to a planting clutch case provided at the rear of the traveling body 2, and then transmitted to the seedling planting section 4 by a planting transmission shaft, and also transmitted to the fertilizer application device 5 by a fertilizer application transmission mechanism.

[0022] The rear of the vehicle body 2 is covered with a rear cover 13, and a seat 14 is installed on top of the rear cover.

[0023] In front of the seat 14 is a front cover 15 which houses various operating mechanisms and the control device 10, and above that is provided a handle 16 for steering the front wheels 6,6.

[0024] The left and right sides of the lower ends of the rear cover 13 and the front cover 15 form horizontal floor steps 17. Part of the floor step 17 is lattice-shaped so that mud on the shoes of an operator walking on the floor step 17 falls into the field. The rear part above the floor step 17 is a rear step 18 that also serves as a rear wheel fender.

[0025] The base of a front support pillar 19 is fixed to the center of the front of the traveling vehicle body 2, and a GNSS receiver 20 is provided at the upper end of the front support pillar 19.

[0026] As shown in Figures 1 and 2, left and right spare seedling carrier supports 21, 21 are fixed at the bases on the left and right sides of the front of the traveling body 2, and left and right spare seedling carriers 22, 22 are attached to the left and right spare seedling carrier supports 21, 21.

[0027] The left and right spare seedling carriers 22, 22 are each constructed by providing four inner seedling carrier frames 23a and four outer seedling carrier frames 23b made of rods on the inside and outside of the left and right spare seedling carrier supports 21, 21, one above the other.

[0028] Left and right spare seedling sprinkler devices 24, 24 are respectively provided on the top of the left and right spare seedling tray supports 21, 21 above the uppermost inner seedling tray frame 23a and outer seedling tray frame 23b, and sprinkle water on the seedlings loaded on the left and right spare seedling trays 22, 22.

[0029] The spare seedling watering device 24 has left and right watering sections 24a, 24a at the left and right ends, and the left and right central section is rotatably mounted on the spare seedling platform support 21 and is configured as a typical sprinkler that rotates back and forth by a predetermined angle using an electric motor.It evenly waters all the seedlings loaded in the inner seedling frame 23a and outer seedling frame 23b on the top level of the spare seedling platform 22, and the sprayed water drips downward one by one, reaching all the seedlings loaded in all the inner seedling frames 23a and outer seedling frames 23b on the lower levels.

[0030] In addition, above the seedling carrier 31 of the seedling planting section 4, a seedling carrier watering device 26 for sprinkling water on the seedlings loaded on the seedling carrier 31 is provided.

[0031] The seedling tray watering device 26 has a watering section 26a at the upper end and is configured as a typical sprinkler that rotates back and forth by a predetermined angle using an electric motor, spraying water evenly over all the seedlings placed on the top of the seedling tray 31 to the left and right, and the sprayed water flows downward, reaching all the seedlings loaded on the seedling tray 31.

[0032] Although the sprinkler sections 24a, 26a of the spare seedling sprinkler device 24 and the seedling carrier sprinkler device 26 have been described as being configured to rotate back and forth by a predetermined angle using an electric motor, it goes without saying that they may also be configured to rotate back and forth automatically using a normal water flow.

[0033] A water tank 25 is provided near the base of the left spare seedling carrier support 21 on the left outer side of the front of the running body 2 (in front of the floor step 17), and the water tank 25 is connected to the left and right spare seedling sprinkler devices 24, 24 and the seedling carrier sprinkler device 26 by water distribution pipes, and an electric pump sends water from the water tank 25 to the left and right spare seedling sprinkler devices 24, 24 and the seedling carrier sprinkler device 26 described below for sprinkling.

[0034] By providing the water tank 25 on the outer side of the front part of the traveling body 2 (front part of the floor step 17), it does not get in the way of workers who go back and forth on the floor step 17 to do work, and it can also function as a front weight, and water replenishment can be easily performed.

[0035] The water tank 25 may be provided on the outer side of the rear step 18, so that it does not get in the way of workers moving back and forth on the floor step 17 or rear step 18 to perform work, and water replenishment can be easily performed.

[0036] The water tank 25 is provided with a general water shortage sensor, which issues a warning such as an audio alarm, a warning level, or a warning buzzer when the water tank 25 is about to run out, thereby preventing situations where watering is not possible due to water shortage and preventing seedlings from withering.

[0037] The power supply for the electric pump is configured as a constant power supply, and automatic watering is possible for a specified period of time (approximately 2 hours) even after the key is turned off, so that automatic watering continues even during work breaks such as lunch breaks to prevent seedlings from withering.

[0038] In addition, when the water sprayed from the left and right spare seedling watering devices 24, 24 is turned into mist, the mist reaches the operator seated in the seat 14, allowing the operator to cool down and work comfortably in the intense heat.

[0039] Here, the sprinkling operation control of the left and right spare seedling sprinkler devices 24, 24 and the seedling carrier sprinkler device 26 will be described.

[0040] The control device 10 determines that the work has been interrupted when the planting clutch that turns on and off the drive of the seedling planting section 4 is turned on and then turned off and does not turn on for a predetermined time, and then operates the electric pump to automatically sprinkle water using the left and right spare seedling sprinkler devices 24, 24 and the seedling carrier sprinkler device 26.

[0041] Therefore, there is no need to water the plants during planting work because they can be planted immediately, and water can be saved by watering only when planting work is suspended.

[0042] In addition, the control device 10 operates the left and right spare seedling sprinkler devices 24, 24 to sprinkle water only when the left and right spare seedling detectors 23c, 23c provided on the left and right spare seedling carriers 22, 22 detect that spare seedlings are loaded on the seedling loading frames 23a, 23b of the left and right spare seedling carriers 22, 22, and operates the seedling carrier sprinkler device 26 to sprinkle water only when the seedling break sensor 31a provided on the seedling carrier 31 does not detect a seedling break (only when seedlings are loaded on the seedling carrier 31).

[0043] Therefore, when no seedlings are loaded on the left and right spare seedling carriers 22, 22 or the seedling carrier 31, the left and right spare seedling sprinklers 24, 24 and the seedling carrier sprinkler 26 do not sprinkle water, thereby preventing unnecessary waste of water.

[0044] In addition, the control device 10 automatically operates the electric pump, which sends water from the water tank 25 to the left and right spare seedling sprinkler devices 24, 24 and the seedling carrier sprinkler device 26 to sprinkle water, intermittently at predetermined time intervals to automatically perform intermittent watering.

[0045] Therefore, watering can be done automatically, saving labor and preventing the seedlings from drying out and dying.

[0046] In addition, the operation panel below the handle 16 is provided with a watering interval adjustment dial that adjusts the interval between waterings depending on weather and other conditions, and the control device 10 automatically intermittently sprays water at the specified intervals set by the watering interval adjustment dial.

[0047] The control device 10 also obtains weather information for the current location using the Internet, determines watering conditions based on the temperature, humidity, wind speed and weather of the current location, and automatically controls watering.

[0048] For example, the control device 10 automatically sprinkles water when the weather is sunny or cloudy and the temperature is 25° C. Also, the control device 10 automatically sprinkles water when the weather is sunny or cloudy and the humidity is less than 50%.

[0049] Even under the above conditions, automatic watering will not occur if the wind speed is below 1 m / s.

[0050] Therefore, by automatically watering according to the weather, it is possible to prevent seedlings from dying due to forgetting to water them or excessive watering.

[0051] In summary, the left and right spare seedling watering devices 24, 24 sprinkle water on the seedlings placed on the left and right spare seedling carriers 22, 22, and the seedling carrier watering device 26 sprinkles water on the seedlings placed on the seedling carrier 31, so the seedlings can be prevented from drying out and dying due to wind or sunlight during rice planting work. Also, there is no need for people to water the seedlings with watering cans, improving work efficiency. <Seedling planting section 4> The seedling planting section 4 has an eight-row planting configuration and is equipped with a transmission case 30 that also serves as a frame, a seedling loading platform 31 that carries mat seedlings and moves back and forth from side to side, supplying seedlings one by one to the seedling outlet of each row, and transporting the seedlings downward by a seedling feed belt that supplies all of the seedlings in a horizontal row to the seedling outlet, and a seedling planting device 32 that plants the seedlings supplied to the seedling outlet in the field.

[0052] A center float is provided in the center of the lower part of the seedling planting section 4, and side floats 34 are provided on both the left and right sides of the center float 34. When the vehicle is advanced with the center float 34 and the side float 34 in contact with the muddy surface of the field, the center float 34 and the side float 34 glide along the muddy surface while leveling it, and the seedling planting device 32 plants seedlings in the leveled area.

[0053] The center float and side floats 34 are mounted so that they can rotate freely, allowing their front ends to move up and down in response to the unevenness of the topsoil surface of the field. During planting work, the up and down movement of the front part of the center float is detected by an angle-of-attack control sensor, and the hydraulic valve that controls the lifting hydraulic cylinder is switched in response to the detection result to raise and lower the seedling planting section 4, thereby maintaining a constant seedling planting depth.

[0054] As shown in Figure 3, the upper support rod 37a of the seedling holder 37, which is installed from left to right above the seedling placing surface 31b of each row of the seedling placing platform 31, has the base of the above-mentioned seedling placing platform watering device 26 fixed to the center of its left and right sides, and as described above, it rotates back and forth by a predetermined angle using an electric motor to evenly water all the seedlings placed on the top of the seedling placing surface 31b of all the rows of the seedling placing platform 31.

[0055] <Fertilizer 5> The fertilizer applicator 5 dispenses a fixed amount of granular fertilizer stored in a fertilizer hopper 40 using a dispensing section 41, and guides the fertilizer via a fertilizer hose 42 to fertilizer guides 43 attached to the left and right sides of the center float and side float 34, and then drops the fertilizer into a fertilizer area formed near the side of the seedling planting row by a furrow-making body provided in front of the fertilizer guide 43.

[0056] Air generated by a blower 45 driven by an electric blower motor is blown into the fertilizer application hose 42 via an air chamber 46 that is long in the left-right direction, and the fertilizer in the fertilizer application hose 42 is forcibly transported by wind pressure.

[0057] <Another embodiment>

[0058] (1) FIG. 4 shows a second embodiment of the front part of the traveling vehicle body 2.

[0059] In the past, when moving on the floor step 17 for tasks such as replenishing seedlings, workers would focus on what was in their hands and not look at their feet, which could lead to danger of tripping over the brake pedal 50 or accelerator pedal 51, and could also result in incorrect operation such as accidentally stepping on the accelerator pedal 51.

[0060] Therefore, a recess 15a is provided in the lower part of the front cover 15, and a brake pedal 50 and an accelerator pedal 51 are disposed in the recess 15a.

[0061] Therefore, when moving along the floor step 17 while performing work such as supplying seedlings, it is possible to prevent tripping over the brake pedal 50 or accelerator pedal 51, ensuring safety, and also to prevent dangerous erroneous operation such as accidentally stepping on the accelerator pedal 51.

[0062] (2) FIG. 5 shows a third embodiment of the traveling vehicle body 2.

[0063] In the past, in a ride-on rice transplanter 1 equipped with an automatic straight-line control device, the operator sitting in the seat 14 had no place to place or hold on to while automatically moving straight, making it difficult to support the operator's body when the machine shook and the operator's posture became unstable.Furthermore, when moving across the floor step 17 while performing tasks such as replenishing seedlings, there was nowhere to support or grab hold of if the operator became unsteady, which was dangerous.

[0064] Therefore, an inverted U-shaped safety frame 60 with its base fixed to the main frame is provided at the rear of the seat 14, and left and right elbow rest frames 61 are provided on the left and right sides of the seat 14 of the safety frame 60 to protrude forward.

[0065] Therefore, when sitting on the seat 14, the person can rest their hands on the left and right elbow rest frames 61 on the left and right sides of the seat 14 to support their body, allowing them to sit on the seat 14 in a stable posture, and if they become unsteady while moving on the floor step 17, they can quickly grasp the safety frame 60 to support their body, improving safety.

[0066] (3) FIG. 6 shows a fourth embodiment of the traveling vehicle body 2.

[0067] Conventionally, in rice planting work in large fields such as China, an assistant often rides on the traveling body 2 of the riding rice transplanter 1 to perform tasks such as supplying seedlings to the seedling carrier 31 of the seedling planting section 4.

[0068] Therefore, auxiliary seats 61, 61 for assistants are provided on both the left and right sides of the rear of a safety guard frame 60 provided on the outer periphery of the rear step 18 at the rear of the traveling vehicle body 2.

[0069] Therefore, when an assistant riding on the traveling body 2 of the riding rice transplanter 1 is not performing work such as supplying seedlings, he or she can sit on the auxiliary seats 61, 61, making rice planting work easier.

[0070] Furthermore, if a flat plate is erected on the front side of the auxiliary seat 61, it can be used as a shield to prevent noise from the air cleaner. [Explanation of symbols]

[0071] 2 Running vehicle 4 Seedling planting department 22 Spare seedling tray 23a Seedling frame (inner seedling frame) 23b Seedling frame (outer seedling frame) 23c Spare seedling detector 24 Spare seedling watering device 24a Sprinkler section of spare seedling sprinkler device 26 Watering device for seedling carrier 26a Sprinkler unit for seedling carrier 31 Seedling stand 31a Seedling break sensor

Claims

1. This seedling transplanter is equipped with a seedling planting section (4) on a traveling vehicle body (2) and a spare seedling carrier (22) with a plurality of seedling carrier frames (23a, 23b) stacked in layers, and is characterized in that it is provided with a spare seedling sprinkler device (24) for sprinkling water on the seedlings loaded on top of the top seedling carrier frame (23a, 23b) of the spare seedling carrier (22).

2. 2. The seedling transplanter according to claim 1, further comprising a seedling carrier watering device (26) for watering the seedlings placed on the seedling carrier (31) of the seedling planting section (4).

3. 3. The seedling transplanter according to claim 1, wherein the watering sections (24a, 26a) of the spare seedling watering device (24) and / or the seedling carrier watering device (26) are provided so as to be rotatable back and forth.

4. 3. A seedling transplanter as claimed in claim 1 or claim 2, characterized in that the watering device (24) for the spare seedlings is activated to sprinkle water when the spare seedling detector (23c) provided on the spare seedling tray (22) detects that seedlings are placed on the seedling carrying frames (23a, 23b), and / or the watering device (26) for the seedling tray is activated to sprinkle water when the seedling break sensor (31a) provided on the seedling tray (31) does not detect that a seedling has broken.

5. The seedling transplanter according to claim 1, characterized in that it obtains weather information for the current location using the Internet or the like, and determines watering conditions based on meteorological information such as the temperature, humidity, wind speed and weather of the current location to automatically control watering.

Images