JP3028218B2 - Cultivation floor watering device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water sprinkler including a water sprinkler to be pulled and run to sprinkle water on a cultivation bed. The present invention relates to a watering device that can maintain the posture of a watering vehicle during traveling without deviation between left and right traction.

[0002]

2. Description of the Related Art A self-propelled watering vehicle requires a watering vehicle to be equipped with a motor and a drive transmission unit, so that the watering vehicle becomes larger and heavier, and the power cord is dragged. It may interfere with running due to entanglement with the hose. For this reason, various types have been provided in which the vehicle is driven on a track by towing, and the self-propelled equipment such as a motor and a power cord is omitted.

[0003]

There is a watering vehicle driven by towing a single track with one rail, for example. This is because the water intake arm that drags the water supply hose from the water truck is protruded from the side of the water vehicle, so a moment is applied to the water vehicle, and the water vehicle that should face directly in the direction of travel runs in an inclined direction, that is, traveling It may hinder running, for example, by taking a posture that deviates from the posture.

[0004] Further, there is a watering car that travels on a double track with two rails. In this case, the wire to be pulled is 1
In the case of a book, the lines of action of the tractive force and the resisting force do not always overlap, and a tilt due to the moment of the sprinkler occurs as described above. Also, if the center of the sprinkler is towed, the tow wire will be stretched in the middle of the track, and since the track usually also serves as a passage between cultivation beds, the wire adjusted in the middle of the passage Can hinder human work. On the other hand, if each of the left and right ends of the watering vehicle is towed by two wires, the line of action of the traction force becomes two, so that the above-mentioned inclination problem is eliminated. However, it is difficult to pull the two wires equally, and the reciprocation of the traveling path causes a shift in the left and right traction, which eventually leads to a direction other than the straight front during traveling. This not only hinders good running, but also causes derailment.

[0005] In view of the above problems, an object of the present invention is to pull a traveling path along a cultivation floor to reciprocate.
And a striatum for towing the sprinkler.
A water sprinkler, wherein the water sprinkler does not lean in a direction other than directly in front, or runs in a normal posture without being derailed due to the slant; Is to provide a watering device that can be satisfactorily performed.

[0006]

A solution for the] Therefore, in the present invention, as described in claim 1, the striatum shaped first endless loop
Is stretched by speculating a running path along the left and right sides of the travel path forms Rutotomoni, roadway along portions of the left and right of the striatum is provided so as to reciprocate in the same direction through the drive source, it left and right end portions of the water truck to travel path along portions of the right and left
Each was towed. The striatum is a wire, a rope,
Any material may be used as long as it can reciprocate while maintaining the stretched state by pulleys, gears, etc., depending on the belt, chain, etc.

[0007] According to this, the left and right traction of the watering vehicle is formed by one endless loop-shaped striated body, so that the amount of left and right traction when the watering vehicle is towed is reduced. There is no deviation, so the sprinkler is always towed to the left and right. Therefore, it does not deviate from the frontal direction in the traveling direction, and a stable posture is maintained even if reciprocation is repeated for a long period of time.

[0008] A specific method for stretching the striated body is provided.
As described in the above, two pulleys are provided at one end of the traveling path at intervals of the width of the watering vehicle, and the striated body that has been folded in two via the pulleys extends along the traveling path. There is a method in which the two left and right wires are led to the other end, respectively, and the two left and right wires are connected to each other to form the endless loop shape. According to this, since the striated body is stretched in a substantially U-shape in plan view, the folded portion of the U-shape is located at the back of the passage, so that the front side of the passage is a surface for people to enter and exit. The sprinkler will be in an open state, so that if the sprinkler is stopped at the back, it will not hinder access to the passage for various operations.

In addition, the above-mentioned traction method is applied to a watering apparatus in which the flanges of adjacent cultivation beds are used as tracks, and the tracks are used as the running paths. By providing the traction system above the ground together with the watering vehicle, the handling of the water supply hose on the ground is improved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a sprinkler according to the present invention will be described with reference to FIGS. The sprinkler system is intended for use in a greenhouse main b <br/> down cultivation, along the cultivation bed
A watering vehicle that pulls the running path back and forth and travels back and forth.
It has a striated body for towing the car, and uses the flange 51 of the bed 50 as a cultivation floor as a track.

In this watering device, the watering vehicle 10 has an endless loop-shaped (as a striated body) stretched on the traveling path A.
It travels while being pulled by the wire 1, and is stretched as shown in FIG. 1 to form an endless loop. still,
The wire may actually be cut and split into two,
In this case, the end of the wire 1 is connected to four points on the front, rear, left and right of the watering wheel (the base body 11), that is, the watering wheel also forms a part of the loop, resulting in the formation of an endless loop. I just need. At one end Y of the traveling path A, a watering vehicle 10
The two pulleys 2, 2 are provided at an interval of the vehicle width, and the folded wires 1 ′, 1 ′ are passed through the pulleys 2 along the left and right flanges, two by two on the left and right. And is guided to the other end X of the running path. The left and right two led to the other end are connected via pulleys 3, 3: 3, 3 to form an endless loop, but one of the connected two as shown in FIG. The loop 7 is formed as a single winding, and the other one is hung on a pulley 4 pulled by a spring 5 so that the tension of the wire 1 is kept constant. In other words, it absorbs changes in the elongation of the wire 1 due to aging and expansion and contraction due to temperature fluctuations, thereby maintaining the same tension. For example, it is useful for preventing the wire 1 wound around the drive wheel 7 from spinning. Note that a stronger force can be stably obtained by pulling by gravity such as weight instead of the spring 5. As described above, the wires 1 ′, 1 ′ that have been passed two by two along the flanges 51, 51 left and right:
Select a wire that reciprocates in the same direction from 1 'and 1'. This wire is actually cut and connected to the front and rear of the watering vehicle as described above, For reciprocating travel. Watering truck 1
0 is a stop position at the other end X on the far side of the traveling path,
The turning point Y is on the near side. In addition, limit switches 8 are provided at both ends of the traveling path.
The motor 6 is reversed by the limit switch, and the motor 6 is stopped by the separately provided limit switch 8 at the stop position X which is the end point of the return path, and the watering vehicle also stops at the stop position.

The watering vehicle 10 which is towed and travels in this manner has the following configuration. An outline of the watering vehicle 10 is a base 11 formed of an angle material in a rectangular shape in a plan view,
Two axle frames 2 for right and left wheels that hold the axle 21
0, 20 and a shaft frame 2 attached to the base 11 so as to be adjustable in height above the base 11 and detachably attached to the base.
0 and 20 and two right and left watering arms 40 and 40 provided on the shaft frames 20 and 20 and having a watering port 41 at the distal end, respectively, which are as follows.

The axle frame 20, which holds the axle 21, can be individually adjusted in height with respect to the base 11. This is due to the arrangement of the melon cultivation bed 50 to be sprinkled, that is, the melon bed is generally arranged in the north-south direction to secure the amount of sunshine, and furthermore, the melon bed is placed between It is installed higher in order from north to north, and is in the shape of a hinadan. Therefore, the track using the flange 51 has a step on the left and right of the track,
Left and right wheels 22 for running on the flanges 51, 51
It is necessary to change the height according to the step, and thus the height adjustment of the shaft frame 20 is performed. Since this level difference is different for each traveling path A, it is performed for each traveling path A as an initial adjustment at the time of installation of the watering vehicle 10. This shaft frame 20
Is supported by a support portion 23 which is provided upright on the base body 11 and has a tip portion threaded, and adjusts the height of the shaft frame at a screwing position of a nut (not shown) screwed above the support portion 23. Has become. In other words, the shaft frame 20 penetrated by the support portion 23 is placed on the nut that is screwed and positioned, and another nut 24 is placed on the shaft frame 20 whose height has been adjusted in this way. It is tightened with. Thereby, the height of the left and right shaft frames 20, 20 is adjusted according to the step of the flanges 51, 51 of the adjacent beds 50, 50, and the watering vehicle 10
In a horizontal position. Also, the shaft frame 20
As mentioned in the operation description below, it is necessary to cover the bed with a vinyl sheet during steam disinfection, and if a sprinkler is installed on the bed flange, This is because it becomes an obstacle to cover with the sheet and must be removed.

The wheel width of the wheel 22 is adapted to follow a change in the width of the track width. This is because the flange 51 of the bed 50 is not originally intended to be used for a track, and thus the track width changes during traveling. Specifically, the wheel 22 is a small-diameter wheel made of a synthetic resin, and is simply inserted into the axle 21 made of stainless steel without a bare link or the like. The insertion hole is slightly loosened and inserted through the oil-applied axle 21, but the axle length has play, and the wheel 22 slides along the axle 21 according to the change in the track width. Therefore, the wheel width follows the change of the track. It should be noted that such a configuration of the wheel 22 may be provided for either the left or right wheel, but may be provided for both, as a matter of course. Note that when the width of the track width changes beyond the following range of the wheel width, the bed position is shifted at the time of installation of the watering vehicle, and the initial adjustment is performed so as to be within the following range.

Two sprinkling arms 40 are provided on the left and right sides. The sprinkling arms 40 sprinkle water on one side in the outward path and sprinkle water on the other side in the return path. It has become. In the water supply path, a water supply hose 30 from a water source (not shown) is connected to a water intake 31 on the watering vehicle side, and from the water intake 31 to two watering arms 40, 40 via a three-way valve 32 provided in the watering vehicle 10. It branches and reaches the sprinkling port 41 at the tip. Water is supplied to one of the watering arms 40 by the three-way valve 32. The three-way valve 32 is disposed below the base 11
6, the switching lever 33 is located at the lowermost position. This is because the watering vehicle 10 needs to switch the lever 33 of the three-way valve 32 at the turning point Y of the traveling path.
When 0 reaches the turning point Y, the lever 33 comes into contact with the lever switching push rod 60 erected at the turning point Y to switch. This lever 3
By switching 3, watering is switched from one arm 40 to the other arm 40. Watering arm 4
Numeral 0 is attached to a receiving arm 43 provided on the top of a support column 42 erected on the shaft frame 20 via a hinge. The inclination of the receiving arm 43, that is, the inclination of the watering arm 40, is adjusted by adjusting the length of the brace 44 bridged between the distal end of the receiving arm 43 and the base end of the column 42. When attaching the watering arm 40 to the receiving arm 43, the length of the arm that projects the arm 40 outwardly from the side surface of the watering vehicle 10 can be adjusted. Therefore, by these inclination adjustment and length adjustment, the water spout 41 at the tip of the arm 40 is provided.
Can be adjusted to a desired target site such as a culture medium.

The sprinkler thus constructed is installed between the beds. Taking a greenhouse (not shown) having six beds as an example, the operation of the sprinkler will be described together with the description of the control device shown in FIG. 7 for controlling the sprinkler.

Three watering wheels 10 are provided, a first watering wheel for the first and second beds, a second watering wheel for the third and fourth beds, and a fifth watering wheel for the fifth and sixth beds. A third watering vehicle will be installed. If the number of beds is an odd number such as five, the third sprinkler runs with the fourth to fifth bed flanges as tracks, and also closes one of the three-way valve branch openings, and If you spray water on the fifth bed, you can return on the return path without watering.

[0018] These watering devices, are controlled by a control panel 50 provided on the greenhouse entrance. The control panel 50 includes a power switch 51, a pilot lamp 52, and three watering vehicle switches 53 provided for each watering vehicle 10 to select whether or not to run the watering vehicle.
And six speed dials 54 provided for each of the watering vehicles 10 for setting the traveling speed of the watering vehicle 10 for the outbound and return trips, and these watering wheel switches 53 and speed dials 54.
Is set, a start button 55 for starting the sequential running of the three sprinklers is provided.

When the control panel 50 is set, the first to third watering wheels 10, 10,... For example, the first watering vehicle 10 will be described as an example.
First, a first water supply valve (not shown) for the first water sprinkler provided on the water source side is opened at the stop position before traveling to the outward path, and the water sprinkling arm 40 extended to the first bed side is opened. After about 10 seconds, drain the water remaining in the water supply path. After that, the same watering arm 40
The vehicle starts running at a speed according to the setting of the speed knob 54 while watering the water, and reaches the turning point Y while watering the first bed. When it reaches, the switching lever 33 of the three-way valve 32 is attached to the push rod 60 provided at the turning point Y.
Switches when hitting. By the switching of the lever 33, the watering arm 40 which has been watering is stopped, and watering is started from the watering arm 40 extended to the second bed side. Immediately after the lever 33 is switched, the limit switch at the turning point Y is pushed and actuated by the watering vehicle 10 to reverse the motor 6, that is, the watering vehicle 10 starts traveling to the return path. At the time of returning travel, the speed is in accordance with the speed dial 54 corresponding to the backward travel. This is to adjust the watering amount for each bed corresponding to the different sunshine for each bed, that is, since the water amount from the watering port 41 is constant, the running amount at a low speed results in an increase in the watering amount for the target. This is because the amount of water spray can be reduced as a result of running at high speed, so that the speed knob 54 can also be called a water volume knob.
The amount of water supplied to the watering vehicle is roughly adjusted by a valve provided for each watering vehicle, and the coarsely adjusted water supply is further finely adjusted by adjusting the speed. As described above, when the water truck reaches the end of the return route, that is, the stop position X, the switching lever 33 of the three-way valve 32 is switched by the push rod 60, and the water vehicle turns the limit switch while preparing for the next traveling. Activate and stop motor 6. At the same time, the first water supply valve is closed, and the operation moves to the operation of the second watering vehicle. In traveling of the second watering vehicle, the second water supply valve for the second watering vehicle (not shown) provided on the water source side is opened, and the same operation as described above is performed.

At the time of steam disinfection, the bed is covered with a vinyl sheet. At this time, since the entire flange is covered, it is necessary to remove the watering vehicle which uses the flange as a track. In this case, it is sufficient to remove the detachable shaft frame from the base of the watering vehicle, and the base remaining after removal can be suspended in the wire, and the wire can be released or re-stretched. Steam sterilization can be performed without any waste.

In addition to the base, the shaft frame, and the columns for supporting the watering arm, most parts of the watering vehicle are made of aluminum, so that the weight can be significantly reduced. Further, the watering vehicle is equipped with only two watering arms and a three-way valve that is responsible for branching to the watering arm, so that the structure is very simple. Therefore, the load on (the flange of) the bed is small, and the bed can be applied even to a relatively soft bed. As a specific example, there is a wire mesh bed in which a wire mesh material is formed into a bed shape, and a good drainage can be obtained only by laying a coarse sheet on the wire mesh bed. However, because of the lack of robustness, the various types of watering vehicles proposed in recent years cannot be applied in terms of weight.Therefore, conventional watering vehicles equipped with a motor for self-propelled operation, a motor for operating the watering arm, various control devices, etc. Due to the weight of the car, its application was limited to rigid ones such as resin beds and aluminum beds. Conventionally, there have been many proposals to provide a watering arm movably, operate the arm so that water can be sprayed around the crop, and implement a fine watering pattern. Experience has shown recently that there is no great difference in the quality of crops even with a sprinkling pattern, and there is no problem in terms of the basic performance of a watering car. In addition, the simple structure results in a very low cost. For example, the cost can be reduced to 1/3 or less as compared with a conventional general watering vehicle. If watering trucks (units / 2 beds) are installed in 10 greenhouses (6 beds / building), 30 (= 3 units / building x 10) watering trucks will be required, resulting in a large equipment cost. Many of the previously proposed watering vehicles have not been implemented, not because of performance problems, but because of these cost barriers. In this regard, the sprinkler according to the above-described embodiment can achieve high performance with a simple structure, and is therefore suitable for implementation on site.

The following effects can be obtained as effects of the above embodiment (effects other than the effects of the present invention).・ Because the wheel width of the water sprinkler follows the width of the track, the flange on the passage side of the adjacent bed is used as the track, so it is not originally diverted to the track. It can deal with uneven track width,
Stable running is obtained.・ The watering is switched from the left and right watering arms at the time of turning back, but since the lever switching of the three-way valve is performed by the push rods provided at both ends of the running path, it is simple equipment,
In particular, since there is no burden such as mounting an electromagnetic valve or the like on the watering vehicle, the watering vehicle can be reduced in weight. In addition, there is no need to drag the electric cord for switching control of the three-way valve or the like, and as a result, only the water supply hose is dragged by the watering vehicle, and the traction force is small. Furthermore, the more the hoses and cords were dragged by the sprinkler, the more likely it was to get entangled. You.・ Since the shaft frame provided on the watering truck is removable, it is easy to deal with steam disinfection.・ Adjustment of the amount of water spray can be performed for each bed, and since the adjustment is made by adjusting the traveling speed, the structure is simplified.

[0023]

On the other hand, the effects of the present invention are as follows. According to the first aspect of the present invention, the right and left traction of the sprinkler is formed in an endless loop.
Since there is no striated body, there is no deviation between the left and right traction amounts when the watering vehicle is towed. Therefore, the sprinkler is always towed to the left and right evenly, and does not tilt out of the front of the traveling direction. There is no derailment due to the inclination. Further, such an effect is stably maintained even when reciprocating traveling is repeated for a long period of time.

According to the second aspect of the present invention, the striated body is stretched in a substantially U-shape in plan view, whereby one of the passages between the cultivation beds is opened at a surface for human access. So
When watering is not performed, it can be stored without disturbing other operations.

According to the third aspect of the present invention, the water supply hose on the ground is pulled by the sprinkler wheel located above the ground, so that the hose is not stepped on by wheels or the like, and the hose is pulled by the intake port located above. Since it is turned, hose handling becomes good.
In addition, since there are no electric devices in the movable parts, the tangling of the water supply hose and the power cord, etc., which have been seen in the past, is eliminated, and the traction striated body is also stretched above the ground, so this is also the No more entanglement. Also, since the left and right ends of the bogie are towed, strong traction can be exerted against the resistance of the water supply hose.

[Brief description of the drawings]

[1] This figure is a view for explaining the tensioning of the wire as the striatum 1 towing scattered waterwheel, water truck base body 11
Showed only the presence of

[Figure 2] This figure is hung a diffuser waterwheel to bed flange is an explanatory diagram showing how to travel.

FIG. 3 is a diagram showing how the wires 1 are engaged with the drive wheels 7 and the pulleys 3, 3,..., 4 provided at the stop position X of the watering vehicle.

FIG. 4 is an explanatory view of a watering vehicle spanned over a flange.

FIG. 5 is a perspective view of a watering vehicle.

FIG. 6 is a plan view showing the orientation relationship of the three-way valve with respect to the watering wheel in a plan view, and a push rod is erected on the ground at the end of the running direction shown in the vertical direction in the figure. The lever switches when reaching either end,
It is always located at either P or Q.

FIG. 7 is a front view of a control panel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wire as a striated body 2, 3, 4 Pulley 10 Sprinkler 11 Substrate 20 Axle frame 21 Axle 22 Wheel 30 Water supply hose 32 Three-way valve 40 Watering arm 50 Control board 60 Push rod A Runway X The other of the runway Stop position as the end of the road Y Turn point as one end of the road

Claims (3)

(57) [Claims] 1. A water sprinkler for reciprocating by pulling a running path along a cultivation floor, and a wire for pulling the water sprinkler.
Ya, a sprinkler system having a striatum by rope, and the striatum Ru is stretched by speculating a running path along the left and right sides of the travel path forms a shape 1 of the endless loop Along with the
Travel path along portions of the right and left striatum is provided so as to reciprocate in the same direction via the driving source, left and right ends of the front SL water truck is the left and right respectively the striatum
Sprinkling device characterized by being pulled by the part along the running path of
Place . 2. One end of the running path is provided with two pulleys separated by a vehicle width interval of the watering vehicle, and the two-folded striated body extends along the running path via the pulley. by two each lateral Te other led to the end, led lateral sprinkling device according to claim 1, wherein characterized in that two mutually connected to form the endless loop. 3. The watering apparatus according to claim 1, wherein an opposed flange of an adjacent cultivation bed is a track, and the track is the running path.