JP7541741B2 - Ridge painting machine - Google Patents

Description

The present invention relates to a ridge painting machine that performs ridge painting work.

Conventionally, for example, a ridge coating machine is known, as described in Patent Document 1 below.

This conventional ridge painting machine is equipped with a machine body that is connected to a three-point link at the rear of a traveling vehicle such as a tractor, a working means for performing ridge painting work, and a liquid supplying means that can intermittently supply liquid to the surface of the ridge body of the working means.

In addition, the liquid supply means (liquid supply device) has a tank for storing liquid such as water, and this tank is attached to the hitch frame of the aircraft so that it protrudes upward.

JP 2008-43211 A

However, in the above-mentioned conventional ridge coating machine, the tank of the liquid supply means is positioned high, which makes it difficult to pour liquid into the tank and places a heavy burden on the worker.

The present invention has been developed in consideration of these points, and aims to provide a ridge coating machine that can reduce the burden on the operator.

The ridge painting machine of the present invention comprises a machine body connected to a three-point link at the rear of a traveling vehicle, a working means for performing ridge painting work, and a liquid supplying means for supplying liquid, the liquid supplying means having a tank for storing liquid, and at least half of the tank is located below the center of the top pin of the machine body.

The present invention can reduce the burden on workers.

FIG. 1 is a plan view of a ridge coating machine according to an embodiment of the present invention. FIG. FIG. FIG. FIG. 4 is a side view showing the state of water supplying operation to the tank of the sprinkler device.

An embodiment of the present invention will be described with reference to Figures 1 to 5.

In the figure, 1 is a ridge coating machine, which is an agricultural machine that is used by connecting it to a three-point link 3 at the rear of a tractor 2, which is a traveling vehicle. The ridge coating machine 1 performs ridge coating work (ridge repair work) while moving along the ridge as the tractor 2 travels. The type of three-point link (three-point support device) 3 at the rear of the tractor 2 is arbitrary, and may be, for example, either a standard three-point link or a special three-point link.

As shown in Figures 1 and 2, the ridge painting machine 1 is equipped with a machine body 6 that is detachably connected to a three-point link 3 at the rear of the tractor 2, a working means (offset working means) 7 that is provided on the machine body 6 and performs ridge painting work at a desired offset position relative to the tractor 2, and a watering device 8 that is a liquid supplying means that supplies liquid water to the working means 7.

The machine body 6 has a fixed machine frame 11 that is detachably connected to the three-point link 3 at the rear of the tractor 2, and a movable machine frame 12 that can move left and right relative to the fixed machine frame 11 (offsetable relative to the tractor). The movable machine frame 12 is connected to the fixed machine frame 11 via a connecting means 15 having two rotating arms 13, 14, and the working means 7 is provided on the movable machine frame 12. The movable machine frame 12 can rotate relative to the rotating arms 14 around a rotating fulcrum 10 located at the rear of the ridge coating machine 1.

The movable frame 12 moves relative to the fixed frame 11 based on the extension and contraction of the cylinder 18, which is an extension and contraction driving means such as an electric hydraulic cylinder, and the working means 7 is selectively switched at least between a working state (forward working state) and a stored state. In the stored state, the working means (working unit) 7 is located in the rear area of the tractor 2, but in the working state (offset state), it is located in an offset position shifted to the side from the rear area. The amount of offset in the working state can also be adjusted by the extension and contraction of the cylinder 18. In addition, it may be configured to be manually switched, or to be switchable to a return working state (reverse working state), for example.

The fixed machine frame (front frame) 11 has a three-point connection part 20 that is detachably connected to a three-point link (three-point hitch part) 3, for example via a coupler (not shown). The three-point connection part 20 has one top mast 21, two lower arms 22, a top pin (upper pin) 23 attached to the tip of the top mast 21, and a lower pin (lower pin) 24 attached to the tip of the lower arm 22.

The top pin 23 is made of a round shaft-shaped member with an axial direction in the left-right direction, and is detachably attached to one of a plurality of attachment holes 25 formed at the tip of the top mast 21 of the three-point connection part 20. The base end of the top mast 21 is attached to the mast attachment part 28. The front end of the right-side pivot arm 14 is rotatably attached to the mast attachment part 28.

The fixed machine frame 11 is detachably connected to a power transmission joint connected to, for example, a PTO shaft (not shown), and has an input shaft 26 that inputs power from the tractor 2 when the PTO shaft of the tractor 2 rotates.

The power input by the input shaft 26 is then transmitted to the working means 7 via the power transmission means 27. The working means 7 performs work based on the transmitted power. The upper part of the input shaft 26 is covered by the input shaft cover 17.

The fixed machine frame 11 has a frame section 30 that is elongated in the left-right direction. At both ends of the frame section 30 in the longitudinal direction, there are provided U-shaped stand holder sections 31 for removably mounting a stand (not shown). Mounting plate sections 32 are fixed to two locations in the middle of the frame section 30 in the longitudinal direction, and the base end (upper end) of the lower arm 22 is attached to each of the mounting plate sections 32.

A longitudinal protruding frame portion 33 protrudes diagonally downward toward the rear from a portion of the longitudinal frame portion 30 located near the left mounting plate portion 32. The front end portion of the left rotating arm 13 is rotatably attached to the rear end portion of the protruding frame portion 33. The protruding frame portion 33 is disposed near the side of the tank 71, which is a container-shaped liquid storage portion in which water (liquid) is stored.

The working means 7 has an embankment body 36 that plows the rice field surface and ridges (original ridges) while rotating in a predetermined direction to pile up the soil, a ridge forming body 37 that compacts the embankment (cultivated soil) made by the embankment body 36 while rotating in a predetermined direction to form a ridge (new ridge), and an upper surface scraping body 38 that scrapes the upper surface of the ridge (original ridge) while rotating in a predetermined direction. The embankment body 36, ridge forming body 37, and upper surface scraping body 38 are all rotatably mounted on the movable machine frame 12.

The movable machine frame 12 is also provided with an embankment cover 41, a ridge formation cover 42, and an upper surface scraper cover 43. A plate-shaped side cover body (guide plate) 45 for preventing soil scattering that covers the side of the embankment body 36 is provided on the right (outer) side plate portion 44 of the embankment cover 41 and can be moved up and down via a pair of upper and lower link members 46, 47.

Here, the embankment body 36 has a rotating shaft 51 supported by the movable machine frame 12 and a plurality of tilling tines (embankment tines) 52 detachably attached to the rotating shaft 51. The upper surface scraper 38 has a rotating shaft 53 supported by the movable machine frame 12 and a plurality of tilling tines (scuffing tines) 54 detachably attached to the rotating shaft 53. The working depth (cultivation depth) of the embankment body 36 and the upper surface scraper 38 can be adjusted (or manually adjusted) by the extension and retraction of a cylinder 55, which is an extension and retraction drive means such as an electric hydraulic cylinder.

The ridge forming body 37 has a rotating shaft 56 supported by the movable machine frame 12, and a ridge forming member 57 that is removably attached to the rotating shaft 56. The ridge forming member 57 is composed of a stepped truncated cone-shaped ridge side forming part 58 that forms the ridge side, and a stepped cylindrical ridge top forming part 59 that forms the ridge top.

The ridge side forming part 58 has a base 61 and a plurality (e.g., eight) of ridge side forming plates (face plates) 62 that are removably attached to the base 61. Each ridge side forming plate 62 is formed, for example, in the shape of a fan and a curved plate that is convex on the outer surface. The ridge top surface forming part 59 consists of an upper surface roller 63, and a plurality of spiral step portions 64 are formed on the outer circumferential surface of this upper surface roller 63.

The sprinkler device 8 sprinkles water onto the ridge forming body 37 to prevent soil from adhering to the ridge forming body 37, for example, when the soil is very sticky. For example, a worker in the driver's seat of the tractor 2 can adjust the amount of water sprinkled (including zero) by operating a remote control to control the pump of the sprinkler device 8. Note that it is also possible to adjust the amount of water sprinkled by operating a cock, or to automatically adjust the amount of water sprinkled by detecting soil adhering to the surface of the ridge forming body 37.

The watering device 8 has a tank support 70 that is detachably attached to the fixed machine frame 11, which is the fixed part of the machine body 6, a tank 71 that is supported by the tank support 70 and at least a portion (at least half or more), i.e., for example, the entire tank (including almost the entire tank), is located below the center of the top pin 23 of the fixed machine frame 11, and a hose 73 that is a pipe whose base end is connected to a connection port (liquid outlet) 72 formed on the bottom of the tank 71 and whose tip end extends to the ridge forming body 37 and is located in the vicinity of the ridge forming body 37.

In addition, the water sprinkler device 8 has an opening/closing lid (cap) 78 that opens and closes the top opening (liquid inlet) 77, which is an opening formed at the top of the tank 71, and this opening/closing lid 78 is removably attached to the top of the tank 71.

The watering device 8 further includes a motor-driven pump (not shown) provided midway along a flexible, elongated hose 73, and a number of watering nozzles 74 attached to the tip of the hose 73 and facing the ridge forming body 37. The watering nozzles 74 are attached to a nozzle mounting member 75 attached to the movable machine frame 12 so that their orientation can be adjusted.

Here, the tank 71 is made of a rectangular parallelepiped container member having four sides, for example, front, back, left and right, and has a circular top opening 77 on the top surface (top end) for pouring water into the tank 71, and this top opening 77 can be opened and closed by an opening/closing lid 78.

Specifically, as shown in FIG. 4, the tank (container member) 71 has a main body 79 for storing water, and a short cylindrical portion 80 protruding upward from the upper surface of the main body 79. The upper end surface opening of the cylindrical portion 80 forms an upper opening (circular space) 77, and the upper opening 77 is closed by an opening/closing lid 78 attached to the cylindrical portion 80 so as to be able to be opened and closed.

The top opening (water supply port) 77 for adding water to the inside of the main body 79 of the tank 71 is located below the center of the top pin 23 (in other words, the central axis X in the left-right direction passing through the shaft center of the top pin) when the tank 71 is in the horizontal position (the working position of the ridge coating machine).

In other words, when the tank 71 is in a horizontal position (including a substantially horizontal position) as shown in FIG. 4, the top opening 77 at the top end of the tank 71 is located below the horizontal plane S including the horizontal central axis X. In addition, in this illustrated example, the top opening 77, which is the water supply port, is located below the top surface 29 of the mast mounting portion 28, and the distance L1 between the top surface 29 and the top opening 77 is greater than the distance L2 between the horizontal plane S and the top surface 29.

On the other hand, the connection port 72 at the bottom of the tank 71 is located below the center of the lower pin 24 (in other words, below the central axis Y in the left-right direction passing through the axis of the lower pin). In this state, the inclination angle α of the input shaft 26 with respect to the horizontal direction is, for example, 5 degrees.

In addition, in this state, in a plan view, the working means 7 in an offset working state is located to one side (right side) of the input shaft 26 in the fore-and-aft direction, and the tank 71 in a horizontal position is located to the other side (left side) of the input shaft 26 in the fore-and-aft direction (see Figure 1).

At this time, as is clear from FIG. 1, in plan view, the tank 71 is located at the front of the ridge coating machine 1 (the position on the fixed machine frame side) and to the side of the embankment body 36, and the tank 71 and the embankment body 36 are lined up in the left-right direction in plan view. In other words, the tank 71 is located forward of the pivot fulcrum 10 on the rear side of the ridge coating machine 1, and is positioned so that it does not rotate together with the movable machine frame 12.

The left side surface (left end) 71a of the tank 71 protrudes outward from the left stand holder portion (left end of the fixed machine frame) 31. In other words, in a plan view, at least a portion (left side) of the tank 71, i.e., the left side portion (outer portion) of the tank 71 including at least a portion of the top opening 77, protrudes leftward from the left end of the body 6. Furthermore, behind the tank 71, there is a work space 60 where a worker performing water supply work can stand and perform the work (see Figures 1 and 5).

The tank support 70, which thus fixedly supports the tank 71 at a position on the fixed machine frame 11 side (the front position of the ridge coating machine), is removably attached to the left side of the fixed machine frame 11 as shown in FIG. 3, and has a pair of left and right mounting members (two stays) 81, 82 that face each other at a distance, and a support member (one tank stand) 83 that is installed between these mounting members 81, 82 and supports the tank 71.

The left and right mounting members 81, 82 are, for example, L-shaped members, and have a first longitudinal portion 81a, 82a and a second longitudinal portion 81b, 82b that rises from the front end of the first longitudinal portion 81a, 82a.

The support member 83 is installed between the left and right first long parts 81a, 82a, and the left second long part 81b is attached to the left end of the frame part 30, while the right second long part 82b is attached to the lower part of the mounting plate part 32. Although not shown, a pump of the sprinkler device 8 is attached to the right first long part 82a. The pump may be attached to a different position, for example, it may be attached to the support member 83, the tank 71, etc.

The support member 83 has an attachment portion 85 attached to the first longitudinal portions 81a, 82a of both attachment members 81, 82, and an annular support portion 86 that fits and holds the lower portion of the tank 71 inside. This support portion 86 has a plate member 87 on the left side that is longitudinal in the front-to-rear direction, and the end of a frame member 88 that is U-shaped in plan view and the ends of two pipe members 89 are connected and fixed to this plate member 87.

Next, we will explain the operation of the ridge coating machine 1.

For example, when plastering ridges with sticky soil, the clayey soil will adhere to the surface of the ridge forming body 37, so it is necessary to use the water sprinkler system 8 to sprinkle water on the ridges to prevent the soil from adhering.

In such a case, before starting the ridge painting work, the worker sets the ridge painting machine 1 to the working position (tank horizontal position) shown in FIG. 5 using the three-point linkage 3 of the tractor 2, as shown in FIG. 5, and supplies water to the tank 71 of the watering device 8.

In other words, the worker places the ridge applicator 1 on the rice field surface in the working position shown in Figure 5, then removes the open/close lid 78 from the tank 71, opens the top opening (water supply port) 77 of the tank 71 upward, and uses a container 90, such as a plastic container, to pour a predetermined amount of water (e.g., 20 liters or 30 liters) from the top opening 77 into the tank 71.

At this time, the top opening 77 that opens upward is located at a lower position than the top pin 23 at the top of the three-point connection part 20 of the fixed machine frame 11, so the worker can easily perform the water supply work.

After the water supply work is completed, the tractor 2 drives the ridge coating machine 1 forward (in the direction of travel) along the ridge, while the water sprinkler 8 sprays water toward the ridge forming body 37, performing the ridge coating work.

Specifically, the top scraper 38 tills and scrapes the top side of the ridge, and behind it the banking body 36 tills the field surface and the ridge to pile up the soil, and behind it the ridge forming body 37 compacts the soil piled up by the banking body 36 to form the ridge.

At this time, the water sprinkler nozzle 74 sprinkles water from the tank 71 toward the ridge forming body 37, supplying the desired amount of water to the ridge forming body 37. Therefore, even if the soil is sticky, soil is less likely to adhere to the surfaces of the ridge side forming portion 58 and the ridge top surface forming portion 59 of the ridge forming member 57 of the ridge forming body 37. Note that water may be supplied to the soil by the water sprinkler device 8, for example, when the soil has little moisture and the ridge cannot be painted cleanly.

And with the ridge coating machine 1, the top opening 77 of the tank 71 of the watering device 8 is located below the center of the top pin 23 at the top of the three-point connection part 20 of the fixed machine frame 11 of the machine body 6, making it easier to fill the tank 71 with water than before, and reducing the burden on the worker.

In addition, when the ridge coating machine 1 is used to coat ridges, the working means 7, which is in an offset working state relative to the tractor 2, is located to one side of the input shaft 26 in a plan view, and the tank 71 is located to the other side of the input shaft 26 and in front of the ridge coating machine 1. This results in a good overall weight balance, making ridge coating easier and further reducing the burden on the worker.

Furthermore, the tank support 70 that supports the tank 71 has a pair of mounting members 81, 82 attached to the fixed machine frame 11 and a support member 83 that is installed between these mounting members 81, 82. Therefore, the tank support 70 with a simple configuration can properly support the tank 71 so that the entire tank 71 is positioned below the top pin 23 of the fixed machine frame 11 and forward of the rotation fulcrum 10 of the movable machine frame 12.

In the above embodiment, the liquid supplying means is a sprinkler device, but the present invention is not limited to this. The liquid supplying means may be a device that supplies, for example, a liquid herbicide or other chemical (liquid) or a chemical solution for hardening soil by spraying it onto the soil or working means.

In addition, the tank of the liquid supply means is not limited to a configuration in which the entire tank is located below the center of the top pin, and may be configured, for example, such that a portion of the tank (e.g., an opening for introducing liquid into the tank) is located below the center of the top pin.

REFERENCE SIGNS LIST 1 Ridge painting machine 2 Tractor as a traveling vehicle 3 Three-point link 6 Machine body 7 Working means 8 Sprinkler device as a liquid supply means 11 Fixed machine frame 23 Top pin 26 Input shaft 70 Tank support 71 Tank 77 Opening as an upper surface opening 81, 82 Mounting member 83 Support member

Claims (6)

A body connected to a three-point link at the rear of a traveling vehicle;
A working means for carrying out ridge painting work;
A liquid supply means for supplying liquid ;
a driving means capable of switching the working means to at least a working state and a stored state ;
The liquid supply means has a tank in which liquid is stored,
A ridge coating machine, characterized in that at least half of the tank is located below the center of a top pin of the machine body. A body connected to a three-point link at the rear of a traveling vehicle;
A working means for carrying out ridge painting work;
A liquid supply means for supplying liquid;
a driving means capable of switching the working means to at least a working state and a stored state;
The liquid supply means has a tank in which liquid is stored,
the tank has an opening for introducing liquid into the tank;
The opening is located below the center of the top pin of the aircraft.
A ridge coating machine characterized by the above. The machine body has an input shaft for inputting power from a traveling vehicle,
3. The ridge coating machine according to claim 1, wherein, in a plan view, the working means is located on one side of the input shaft, and the tank is located on the other side of the input shaft. The machine body has a fixed machine frame connected to a three-point link at the rear of the traveling vehicle,
The liquid supply means has a tank support that supports the tank;
4. The ridge coating machine according to claim 1, wherein the tank support is attached to the fixed machine frame. The tank support is
a mating mounting member attached to the stationary machine frame;
The ridge coating machine according to claim 4, further comprising a support member that is installed between the mounting members and supports the tank. The tank has a connection port at the bottom to which a pipe is connected,
The connection port is located below the center of the lower pin of the aircraft.
6. The ridge coating machine according to claim 1,

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