Tea garden management machine

Abstract

To improve the turning performance and the turn operability of a machine body while suppressing the weight and a cost of the machine body, and to obtain a high fertilization effect, in a tea field managing machine which performs fertilization work.SOLUTION: A tea field management machine comprises: a machine body which is arranged so as to straddle tea ridges at work; a pair of traveling devices which travel between the ridges at the work, and support a lower end of the machine body; a spray material supply device having a container supported to the machine body, and accommodating spray materials; and a spray device arranged at an upper side of the traveling devices, also arranged at a front side in a traveling direction rather than rear ends of the traveling devices, and spraying the spray materials supplied from the container toward a sideway of the traveling direction of the traveling devices.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a tea garden management machine for performing management operations in a tea garden.

Background Art

[0002] Conventionally, as a working machine for performing management operations such as fertilization and pest control in a tea garden, a self-propelled riding-type tea garden management machine that performs operations while traveling across tea ridges is known. As equipment for performing fertilization operations, such a tea garden management machine is equipped with a container for storing fertilizer across the tea ridges on the rear side in the traveling direction of the machine body, and dropping ducts for dropping fertilizer onto the space between the ridges are provided at both left and right ends of the container, and the fertilizer is dropped behind a traveling device that travels between the ridges (see Patent Document 1 below).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] According to the above-described conventional technology, since the dropping point of the fertilizer during fertilization is on the rear side of the traveling device, the rear end of the entire machine body of the tea garden management machine extends to the rear side of the rear end of the traveling device. For this reason, when turning on a narrow turning area, a lifting device is required to lift the fertilization work equipment such as the container above the tea ridge so that the rear side of the machine body does not contact the tea ridge. As a result, the operation of the lifting device is added to the operation during turning, and there is a problem that the operation becomes complicated. In addition, there is a problem that the weight and cost of the machine body increase due to the installation of the lifting device.

[0005] Also, according to the above-described prior art, since the fertilization location is limited to the furrows behind the traveling device, it becomes necessary to perform fertilization at a location far from the roots of the tea ridges. For this reason, there has been a problem that it is difficult to obtain a high fertilization effect.

[0006] The present invention has been proposed to address such problems. That is, in a tea garden management machine that performs fertilization work, while suppressing the body weight and body cost, improving the turning performance and operability during turning of the body, and fertilizing near the roots of the tea ridges so as to obtain a high fertilization effect, etc. are the problems of the present invention.

Means for Solving the Problems

[0007] In order to solve such problems, the tea garden management machine according to the present invention has the following configuration. A machine body arranged to straddle the tea ridges during work, a pair of traveling devices that travel between the furrows during work and support the lower end of the machine body, a dispersing material supply device that is supported by the machine body and includes a container for storing the dispersing material, and is arranged above the traveling device 、 A dispersing device that disperses the dispersing material supplied from the container in the traveling direction Sideward of the traveling device The spraying device has a spraying port for spraying the spraying material toward the side of the traveling device on the front side in the traveling direction from the rear end of the traveling device, and the spraying port sprays the spraying material from a position higher than the ground height of the traveling device A tea garden management machine characterized by the above.

Effects of the Invention

[0008] According to the present invention having such characteristics, in a tea garden management machine that performs fertilization work, by omitting the lifting device, it is possible to improve the operability during turning while suppressing the body weight and body cost, and also by providing the dispersing device inside the length in the traveling direction of the traveling device, the turning performance of the body can be improved, and a high fertilization effect can be obtained by the dispersing device that disperses the dispersing material toward the side in the traveling direction.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Mode for Carrying Out the Invention

[0010] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same reference numerals in different drawings indicate parts having the same function, and duplicate descriptions in each drawing will be omitted as appropriate.

[0011] As shown in FIGS. 1 to 3, the tea garden management machine 1 according to an embodiment of the present invention includes a machine body 2 and a traveling device 3. The machine body 2 is arranged so as to straddle the tea ridges, and the traveling device 3 is a self-propelled ride-on type working machine that performs management work while traveling between the ridges.

[0012] The machine body 2 includes gantry frames 21 and 22 arranged in the front-rear direction of the traveling direction of the tea garden management machine 1, and a floor plate 23 arranged between the gantry frames 21 and 22 and fixed across these gantry frames 21 and 22. The gantry frames 21 and 22 are formed so as to straddle the tea ridges. On the upper surface of the floor plate 23, a driver's seat 24, a driving operation console 25, and a prime mover box 26 are installed. A prime mover (engine), etc. (not shown in the figure) is installed in the prime mover box 26. The prime mover serves as a drive source for a spraying material supply device 4 and a spraying device 5, which will be described later, and also serves as a drive source for a hydraulic motor that drives the traveling device 3.

[0013] In the case of this embodiment, the traveling device 3 is of the crawler type and includes a support frame 30 that supports the airframe 2. A driven wheel 31 and a drive wheel 32 are pivotally supported on the support frame 30. Further, the traveling device 3 includes crawlers 33 wound around the driven wheel 31 and the drive wheel 32. In the illustrated example, a crawler-type traveling device 3 is shown, but a wheel-type traveling device 3 or the like may also be used. The traveling device 3 is provided with a cover member 34 where a spraying device to be described later is deployed, and the cover member 34 covers at least the upper rear part of the crawlers 33.

[0014] The rotation and stop control of each crawler 33 of the traveling device 3 is performed by an operation handle 25A provided on the operation console 25, so that traveling, stopping, direction steering, and turning can be performed.

[0015] The operation console 25 is provided with an operation lever 25B for setting the drive state of the spraying device 5 to be described later. Note that the operation levers 25B are arranged in a pair in the lateral direction assuming, for example, a case where a device for performing work on both sides in the ridge width direction is mounted. In this embodiment, the operation lever 25B targets the spraying device 5. When a pair is provided, the left and right spraying devices 5 are individually operated, and when a single one is provided, the left and right spraying devices 5 are simultaneously operated.

[0016] A spraying material supply device 4 including a container 40 for storing a spraying material (fertilizer) is provided at the rear part of the airframe 2. The container 40 is supported by a container support frame 41 provided on the rear side of the airframe 2, and is supported so that substantially the entire container 40 is accommodated within the width in the traveling direction of the traveling device 3, thereby reducing the portion where the rear end of the container 40 protrudes rearward from the rear end of the traveling device 3.

[0017] The container 40 is a container for storing a spraying material, with an opening / closing lid 40F provided at the upper opening, having side panels with at least three sides being inclined surfaces, and a bottom that is released with respect to the conveying mechanism section 42. The charging of the spraying material into the container 40 is carried out from the upper opening 40A that is opened by opening the opening / closing lid 40F (see Fig. 4). The container support frame 41 is provided with a projecting / retractable step 43 for manually performing the operation of charging the spraying material into the container 40.

[0018] The conveying mechanism section 42 provided below the container 40 includes a conveying screw 42A that is rotationally driven from a prime mover disposed in the prime mover box 26 via an appropriate transmission mechanism (see Fig. 4). The conveying screw 42A is driven to convey the spraying material in the container 40 toward both the left and right sides. The spraying material conveyed by the conveying screw 42A is fed into discharge pipes 42B provided at the left and right ends of the conveying mechanism section 42, respectively. The discharge pipes 42B are bifurcated, and the upper end sides of supply hoses 44 are connected thereto. The supply hose 44 is for supplying the spraying material through the inside thereof to the spraying device 5, and a flexible hose (for example, a bellows hose, etc.) can be used.

[0019] The spraying device 5 sprays the spraying material supplied from the container 40 via the supply hose 44 at least laterally in the traveling direction of the traveling device 3. The spraying device 5 is disposed above the traveling device 3 and is disposed on the front side in the traveling direction from the rear end of the traveling device 3.

[0020] As shown in Fig. 5, the spraying device 5 is installed on a cover member 34 that covers the upper rear side of the crawler in the traveling device. The spraying device 5 includes an outer frame 50 with the left and right sides in the traveling direction of the traveling device 3 being open and the front and rear in the traveling direction of the traveling device 3 being blocked. Inside the outer frame 50, a spraying disk 51 that is rotationally driven around a vertical axis is provided. At the upper part of the outer frame 50, the lower end of the supply hose 44 for supplying the spraying material onto the spraying disk 51 is connected.

[0021] The outer frame 50 of the spraying device 5 is provided with spraying ports 50A on the outer and inner sides of the airframe 2, and supply ports 50B to which the lower ends of the supply hoses 44 are connected are provided at two locations on the top surface of the outer frame 50. Further, the spraying device 5 is provided with a bottom plate 50C on the upper rear surface of the traveling device 3. In the illustrated example, the bottom plate 50C is fixed on the cover member 34 of the traveling device 3, and the outer frame 50 of the spraying device 5 is attached thereon. However, the bottom plate 50C and the cover member 34 may be integrated, or the bottom plate 50C may be omitted and the cover member 34 may also serve as the bottom plate 50C, and the outer frame 50 may be directly fixed to the cover member 34. By providing the bottom plate 50C, it is possible to prevent the spraying material from hitting the traveling device 3 and corroding the traveling device 3.

[0022] The spraying disk 51 disposed inside the outer frame 50 is rotationally driven by a hydraulic motor 52 attached to the top surface of the outer frame 50. The hydraulic motor 52 is supplied with pressure oil from a hydraulic pump (not shown) driven by the prime mover disposed in the prime mover box 26 described above.

[0023] The spraying disk 51 that rotates around the vertical axis P has a conical disk surface 51A, and centrifugal blades 51B are provided radially on the disk surface 51A. Further, a sweeping plate 51C is attached to the back surface of the spraying disk 51. When the spraying material is supplied from the supply port 50B onto such a spraying disk 51, the spraying material is sprayed downward and laterally from the spraying port 50A by the rotation of the spraying disk 51. Also, when the spraying material supplied onto the bottom plate 50C drops, the sweeping plate 51C rotates together with the spraying disk 51, and the spraying material that has dropped onto the bottom plate 50C is discharged outside from the spraying port 50A.

[0024] According to such a tea garden management machine 1, since the spraying device 5 is arranged on the traveling device 3, as shown in FIG. 6, the spraying material can be sprayed from a height h higher than the ground height of the traveling device 3, and the conical spraying disk 51 can spray the spraying material downward from the height h. Thereby, even when the distance L from the traveling device 3 to the ground-exposed portion of the tea field is long, the spraying material can be dispersed to perform effective fertilization. Further, since the spraying material is sprayed downward from the spraying port 50A, the spraying material is not uselessly applied to the above-ground part of the tea field, and the spraying material can be effectively sprayed on the ground surface under the tree crown of the tea field.

[0025] Also, according to such a tea garden management machine 1, since the spraying device 5 is arranged from the rear end to the front side of the traveling device 3, the spraying device 5 does not interfere with the tea field or the like when the traveling device 3 turns, and there is no need to perform the operation of raising and lowering the equipment for spraying with a lifting device as in the prior art. Thereby, by omitting the lifting device, the body weight and the body cost can be suppressed, and further, by eliminating the operation of the lifting device, the operability during turning can be improved.

[0026] As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments, and even if there are design changes or the like within the scope not departing from the gist of the present invention, they are included in the present invention. Further, each of the above-described embodiments can be combined by diverting each other's technologies as long as there are no particular contradictions or problems in their purposes and configurations.

Explanation of Reference Numerals

[0027] 1: Tea garden management machine, 2: Machine body, 21, 22: Gantry frame, 23: Floor plate, 24: Driver's seat, 25: Operation console, 25A: Operation handle, 25B: Operation lever, 26: Prime mover box, 3: Traveling device, 30: Support frame, 31: Driven wheel, 32: Driving wheel, 33: Crawler, 34: Cover member, 4: Scattering material supply device, 40: Container, 40A: Opening, 40F: Opening / closing lid, 41: Container support frame, 42: Conveying mechanism section, 42A: Conveying screw, 42B: Discharge pipe, 43: Step, 44: Supply hose, 5: Spraying device, 50: Outer frame, 50A: Spraying port, 50B: Supply port, 50C: Bottom plate, 51: Spraying disk, 51A: Disk surface, 51B: Centrifugal blade, 51C: Sweeping plate, 52: Hydraulic motor, P: Vertical axis

Claims

1. a machine body arranged to straddle tea fields during operation; a pair of traveling devices that travel between ridges and support the lower end of the machine body during operation; a spraying material supply device provided with a container supported by the machine body for storing the spraying material; a spraying device arranged above the traveling device and spraying the spraying material supplied from the container toward the side in the traveling direction of the traveling device; the spraying device has a spraying port for spraying the spraying material toward the side of the traveling device on the front side in the traveling direction from the rear end of the traveling device, and the spraying port sprays the spraying material from a position higher than the ground height of the traveling device. A tea garden management machine characterized by this.

2. The tea garden management machine according to claim 1, wherein the spraying device is provided with a bottom plate on the upper rear side of the traveling device.

3. The spraying device according to claim 1 or 2, comprising an outer frame with the left and right sides in the traveling direction of the traveling device opened as the spraying ports, a spraying disk rotatably driven around a vertical axis provided inside the outer frame, and a supply port for connecting the lower end of a supply hose for supplying the spraying material onto the spraying disk is provided at the upper part of the outer frame.

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