JPH036192Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a rotary device for a plant cultivation bench, and in particular to a rotary device for a bench configured to automatically supply water to plants while the bench rotates. be.

(Prior art) Rotary devices for plant cultivation benches have been proposed in the past, in which a bench for placing plants is suspended from a chain feeder and rotated. There are two types: one is a tower type, and the other is a horizontal type, where the bench runs horizontally.

(Problem to be solved by the invention) In general, in this type of bench rotary device, a large number of benches are suspended at equal intervals around the entire circumference of a chain feeder, and plants are placed on each of these benches. Therefore, the load applied to the chain feeder is enormous, and it is difficult to realize the chain feeder in a normal configuration in which the chain is driven to rotate between two rotating bodies, and it is not possible to operate the chain feeder reliably.

In addition, in the case of the conventional tower-type structure mentioned above, when installed in a greenhouse, the house must be raised to the height of the ridge, so it cannot be installed in an existing greenhouse, and the amount of equipment increases.

On the other hand, in the above-mentioned conventional horizontal running type, it is necessary to provide sufficient space between the conveying side and the return side of the chain feeder for the return side bench to run in a hanging state, and to drive the chain feeder in rotation. In this case, installing a plurality of such large-diameter drive gears requires a great deal of cost. Furthermore, as a result of our various experiments, we have found that when the chain is a roller chain and a large-diameter semicircular guide section is provided at the turn section to run the roller chain, a large amount of load is placed on the roller chain as described above. It was found that the rollers could not run reliably due to the frictional resistance caused by the load when the rollers rolled on the semicircular guide part. Therefore, even if a roller chain is used, the first and second
It is essential to arrange a rotating body of

Furthermore, if a chain is simply stretched around both rotating bodies and the rotating bodies are directly driven to rotate by a drive source, not only will the chain sag due to the above-mentioned load on the chain, making it impossible to drive the chain smoothly. , the driving force required to rotate a large rotating body becomes large.

Regarding irrigation means, when trying to irrigate plants from the bottom with a parallel running type device, in the case of a conventional parallel running type device in which both rotating bodies have the same diameter, the bench runs on the lower side. It is necessary to provide a long liquid tank to accommodate the stroke of water, which has the disadvantage of over-watering, and because the water drops are transferred from the return section to the upper stage side while running on the upper stage side, water droplets are transferred to the lower stage side while running on the upper stage side. It has the disadvantage that it drips onto plants, etc.

The purpose of this invention is to eliminate the above-mentioned drawbacks of the conventional technology, to be able to implement it at low cost with a simple configuration, to ensure reliable operation, and to ensure bottom irrigation only when the bench is lowered. To provide a rotary device for a plant cultivation bench which drains water while traveling on the lower stage side.

(Means for Solving the Problems) The rotary device for the plant cultivation bench according to the present invention has a chain chain that is wound around a pair of left and right first and second rotating bodies and runs horizontally facing each other. In a rotary device for a plant cultivation bench in which a large number of plant cultivation benches are swingably suspended at equal intervals between feeders, the chain feeder is a roller chain, and the chain feeder is a roller chain. The bench is lowered by installing guide rails in two stages, upper and lower, to guide the chain roller, and using the first and second rotating bodies as freely rotating wheels, and directly driving the roller chain with a feed gear. The pair of rotating bodies on the side are formed to have a larger diameter than the pair of rotating bodies on the side from which the bench ascends, and a roller chain that goes around the outer circumference of the rotating body on the descending side is attached to the starting end of the guide rail on the lower side. A curved part for climbing is provided so that the plant can immediately ride onto the guide rail of the lower part, and the plants that have been irrigated from the bottom in the water storage tank installed below the rotating body on the descending side are immediately pulled up from the tank and run horizontally. This structure is designed to prevent over-watering due to overwatering.

(Function) The roller chain directly driven by the feed gear runs in parallel along the guide rail, but since each turn of the roller chain is a freely rotating wheel, the roller chain is wound around the wheel and the rollers run parallel to the guide rail. It runs without rotating, and since it is supported by guide rails in the horizontal running section and the load is distributed flatly, there is no need for a large load to be applied to it.

Benches suspended at equal intervals around the entire circumference of the roller chain are lowered by a rotating body on the large diameter side, and the plants mounted on the benches are installed below the rotating body on the large diameter side. After being irrigated from the bottom by the water storage tank, the bench immediately enters the lower guide rail through the ascending curve and runs horizontally, during which time the water is drained and the bench is raised by the rotating body on the small diameter side. and drive on the upper side.

(Example) An example of a rotary device for a plant cultivation bench according to the present invention will be described based on the drawings.

Figure 1 is an overall side view, Figure 2 is a plan view, and Figure 3 is a side view of the whole.
4 is a side view of the first rotating body with a portion removed, FIG. 5 is a side view showing a state in which the bench is suspended from the roller chain, and FIG. 6 is a perspective view of the same.

A pair of left and right first rotating bodies 4A, 4B and a second rotating body 5A, 5B, each consisting of a free-rotating wheel, are installed on both ends of the machine frame 1, and are wound around these and driven by the drive source 2. A roller chain 6 that runs at low speed horizontally along the guide rail 3
A large number of benches 7 are swingably suspended at equal intervals between both roller chains 6, and each bench 7 moves in two stages, upper and lower, in opposite directions as the roller chain 6 moves. A pair of rotating bodies on the side from which the bench 7 descends, in the embodiment, the first rotating bodies 4A, 4B are formed to have a large diameter, and a water supply device 8 is provided below between the rotating bodies 4A, 4B. Place. The first rotating bodies 4A, 4B are arranged such that their upper edges are at the same height as the upper edges of the second rotating bodies 5A, 5B, and the large diameter rotating bodies 4
The bench 7 that has descended along the rotating orbits A and 4B rises at a rising curve 9 formed on the lower rail 3A, and then moves horizontally.

To explain the above configuration in detail, the guide rail 3 consists of a lower rail 3A and an upper rail 3B.
0 is set up. The roller chain 6 runs along the guide rail 3, but in a rotary device for a bench for cultivating plants in a greenhouse or the like, the entire device is large-scale, and each of the rotating bodies described above is also large-scale. If a gear that meshes with the roller chain 6 is used, it will be extremely expensive. Therefore, freely rotating wheels having flat outer peripheral surfaces are used as the first and second rotating bodies 4A, 4B, 5A, and 5B, and the roller chain 6 is wound around them. The driving means does not directly drive the rotating body, but rather drives the roller chain 6, and the driving source (motor) 2 drives the speed reducer 11, the gear 12 provided on the common drive shaft 13, etc. It is driven and travels by a small-sized feed gear 14. With such a configuration, the vehicle can be accurately driven with a small motor, allowing smooth running. Normally, the rotary device of this type of plant cultivation bench needs to be operated constantly during daylight hours, so being able to use the above-mentioned small, low-power motor is extremely advantageous, and can significantly reduce power consumption. can.

The starting end 3a of the lower rail 3A is fixed to the machine frame 1, and after going around the outer periphery of the first rotating bodies 4A, 4B, a rising curve 9 is formed and extends parallel to the ground surface. After passing around the outer circumferences of the two rotating bodies 5A and 5B, the terminal end thereof is fixed to the machine frame 1. Further, the upper rail 3B extends linearly and ends at the upper edge side of each rotating body.

The bench 7 is a rectangular frame having a bottom frame 7a, and has a length approximately corresponding to the length between the two roller chains 6, and a cage-like bed for cultivating plants, etc. ( (not shown), but in order to swingably suspend this bench 7 from the roller chain 6, a fixing plate 15 is attached to the roller chain 6, and a support pin 16 is installed therein. A bracket plate 17 having a short pipe 18 into which the pin can be inserted is suspended vertically so as to be swingable, and a bifurcated support member 19 fixed to the bracket plate 17 is attached to the side plate 7b of the bench 7 to suspend it. be. Reference numeral 21 denotes a support pipe that is stretched between the support pipe and the bracket plate 17 arranged on the opposite side of the roller chain, and an insertion pin 20 planted in the bracket plate 17 is inserted on the opposite side of the pipe 18. By doing so, the roller chains are supported and the distance between both roller chains is maintained accurately.

A tank 8 for bottom-watering plants is embedded in the ground surface G, and the amount of water stored in the tank is adjusted by a supply/drain pump 8a or the like. Since the water storage tank is of an embedded type, a slope toward the tank 8 side can be formed on the ground surface G where excess water is drained, and the excess water can be returned to the tank 8 side.

Next, to describe an example of operation, drive source 2 (motor)
The rotation of the common shaft 1 via the reducer 11
3 rotates, and the feed gear 14 causes the roller chain 6 to run in the direction of arrow F. First rotating body 4
Since A, 4B and the second rotating bodies 5A, 5B are free, they rotate as the roller chain 6 travels. Benches 7 are swingably suspended between the roller chains 6 running in parallel at equal intervals, and move sequentially as the roller chains 6 run. The plants receive bottom irrigation in the tank 8 by descending along the first rotary bodies 4A, 4B, and are then placed on the bench 7.
After rising by the rising curve part 9, it moves while cutting excess water from the plants and reaches the second rotating body 5.
Go around the A and 5B sides and turn to the upper stage side. On the upper stage side, it rotates sequentially while receiving sufficient light irradiation.

After one cycle of water supply to each plant, bottom watering is stopped by the tank 8, but the roller chain 6 continues to run, and each plant is repeatedly irradiated with light.

(Effects of the invention) According to the rotary device for the plant cultivation bench according to the invention, the roller chain is directly driven by the feed gear, and since the turn portion of the roller chain is a freely rotating wheel, the roller chain is It can be wound around a wheel and run without the rollers rotating, and can be driven by a small, low-power motor.

In addition, the roller chain is supported by guide rails in the horizontal running section, and the load of benches, etc. attached to the roller chain at equal intervals is distributed horizontally, so a large amount of load is placed on the individual rollers of the roller chain. This ensures smooth running and driving.

The bench suspended on the roller chain is lowered by the rotating body on the large diameter side, and the plants mounted on the bench are watered from the bottom by the water tank installed below the rotating body on the large diameter side. After receiving
Since the bench enters the lower guide rail through the ascending curve and travels horizontally, the plants are immediately pulled up from the water tank after being watered from the bottom, and there is no need to overwater.

Furthermore, the water storage tank can be made smaller, and water can be reliably drained while traveling horizontally on the lower stage, making it easy to manage excess drainage.

[Brief explanation of the drawing]

The drawings show an embodiment of the rotary device for a plant cultivation bench according to the present invention, in which Fig. 1 is an overall side view, Fig. 2 is a plan view, and Fig. 3 is a perspective view with a part of the first rotating body removed. 4 is a side view of the same as above, FIG. 5 is a side view showing a state in which the bench is suspended from the roller chain, and FIG. 6 is a perspective view of the same. 1: Machine frame, 2: Drive source, 3: Guide rail, 4
A, 4B: first rotating body, 5A, 5B: second rotating body, 6: roller chain, 7: bench, 8:
tank.

Claims (1)

[Claim for Utility Model Registration] A large number of benches for plant cultivation are oscillated at equal intervals between chain feeders that are wound around a pair of left and right first and second rotating bodies and run horizontally facing each other. In a rotary device for a plant cultivation bench that is movably suspended, the chain feeder is a roller chain, and between the first and second rotating bodies there are two upper and lower guide rails for guiding the chain rollers. The first and second rotating bodies are freely rotating wheels, and the roller chain is directly driven by a feed gear, and the pair of rotating bodies on the side where the bench descends is connected to the pair of rotating bodies on the side where the bench is rising. The diameter is larger than that of the rotating body, and at the starting end of the lower guide rail there is a curved part for ascending so that the roller chain that goes around the outer periphery of the descending rotating body immediately enters the lower guide rail. A rotary device for a plant cultivation bench, characterized in that the rotary device for a plant cultivation bench is configured so that plants whose bottom surface is irrigated in a water storage tank installed below a rotating body on the descending side are immediately lifted up from the tank and run horizontally.