A portion of the disclosure of this patent document contains material that is subject to copyright protection. The patent owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever
This application is a continuation-in-part of PCT KR 2019/008581, filed on Jul. 11, 2019, and published as WIPO Publication No. WO 2020/054958 A1 on Mar. 19, 2020, entitled Trolley Conveyor and Plant Cultivation System Using Same. That PCT application claimed priority from Korean Patent Application 10-2018-0109014, filed Sep. 12, 2018, and Korean Patent Application 10-2019-0067522, filed Jun. 7, 2019. The disclosures of each of PCT KR 2019/008581, Korean Patent Application 10-2018-0109014, and Korean Patent Application 10-2019-0067522, are incorporated herein in their entirety by this reference. Additionally, this application claims foreign priority from Korean Patent Application 10-2019-0152547, filed on Nov. 25, 2019, and published as Korean Published Patent Application No. 10-2137616 on Jul. 20, 2020, the disclosure of which is incorporated herein in its entirety by this reference.
This disclosure is directed to plant factories for cultivation of plants under controlled growing conditions, and to equipment and systems for handling, growing, harvesting, and packaging plants grown in the plant factory.
In recent years, there has been an increasing interest in plant cultivation in a stable growing environment, where continuity of growing conditions can be maintained without being affected by natural environmental conditions. Thus, there has been increasing interest in plant factories, where plants are grown indoors, and shipped out when mature, and are operated just like factories that produce industrial products. An example of such a plant factory was disclosed in Korean Patent Application Publication No. 10-2017-0025460, published Mar. 8, 2017, with the title Method of Cultivating Spinach Using Light Qualityin a Closed Plant Factory System. However, since the plant factory described cultivates plants at fixed locations in the factory, plants at specific locations which have poor lighting conditions experience degraded growth, compared to the plants at other locations in the plant factory with good lighting conditions. Presently, the solution to this problem involves the hassle of having to change the position of each plant or plant bed in the factory, which requires the worker to move the plants or plant beds around the factory, often one by one. Additionally, since the worker has to have space to move between the plant beds, there is a limit to the number of plants, usually in plant pots or beds, which can be arranged per unit area, since space for the worker to move when arranging the plant pots or beds is required. And, when the plants have completed growth, a worker must go around the factory to retrieve plants and move them to locations for packaging and shipment. Consequently, when the scale of the plant factory is large, a lot of labor is required, so increasing labor costs are problematic, as they increase the required sales price of the plants.
An object of the invention(s) disclosed herein is to solve the above-described problems caused by the fixed location of plants being grown, and eliminate the requirements for workers to move plants and plant products around the plant factory, by using a trolley conveyor to move the plant pots and beds. In an embodiment, the pots and beds may be automatically transferred by the trolley conveyor, so that all plant pots and beds are exposed to light under the same conditions.
It is yet another object of the invention(s) disclosed herein to provide a plant cultivation system that allows nutrients to be easily supplied to plants, without the need for individual plant attention by workers.
It is yet another object of the invention(s) disclosed herein to provide a plant cultivation system capable of maximizing the number of plants, i.e. plant pots or beds, per unit area. Since, in an embodiment, all plant pots are automatically moved by a trolley conveyor, space for workers to move about the plant factory can be minimized or eliminated.
Another object of the invention(s) disclosed herein to provide for supply of water and nutrients to a plurality of plants in pots or beds, even while connected to a trolley conveyor by hangers. In an embodiment, all plant ports may be circulated together by the drive mechanism of the trolley conveyor. Thus, water supply, nutrient supply, and modification thereof may be made as appropriate for plant cultivation. Importantly, such a plant cultivation system as described herein can significantly minimize labor requirements for plant cultivation, as plants may be moved without handling by workers.
Another object of the invention(s) disclosed herein is to provide a plant cultivation system in which plants brought to a worker for picking and packaging, so that the worker may wait in place, and the plants (or portions thereof to be removed) to be shipped or packaged are supplied to the worker's location, thereby reducing the working time, and labor required for plant packaging.
Another object of the invention(s) disclosed herein is to provide a plant cultivation system capable of efficient transport of plants in the factory, while minimizing noise generation and minimizing production of foreign matter such as dust and dirt, as plants in various units in a plant factory are moved along between locations, such as when being repositioned using the chain portions of a trolley conveyor.
An advantage of the plant workshop system described herein is that it is possible to quickly manage a large number of plant containers, and accordingly, labor productivity is improved.
Another advantage of the plant workshop system described herein is that since a plant vacuum cleaner is provided at the trolley exit side of the workshop, foreign matter that may have fallen into the plant container during the management process can be quickly and easily removed.
And, since a lubricating oil supply unit is provided at the trolley outlet side of the work room to periodically supply lubricating oil to the chain portion of the moving trolley conveyor, smooth operation of the chain portion is assured.
Another advantage of the invention(s) disclosed herein is that the trolley conveyor substantially prevents the lubricating oil supplied to the chain from contaminating plants when the hanger unit is suspended from the trolley conveyor and is moved along by the chain portions of the trolley conveyor.
Finally, it is an advantage of the plant workshop system described herein that a conditioned, enclosed workshop space is provided for use by workers during plant picking and packing projects, by providing an enclosed space having air curtains at the entrance to the workshop, and at the exit of the trolley conveyor from the workshop.
The above objects and various advantages of the invention(s) as disclosed herein will become more apparent from the description provided and details of various embodiments, as will be understood by those skilled in the art.
A workshop system for a plant factory is provided. A workshop is located adjacent a plant factory used for cultivating plants for harvest and sale. A workshop is provided as an enclosed space with an entrance for one or more tracks of a trolley conveyor, and exists for one or more tracks of a trolley conveyor. A worktable is provided adjacent or above the one or more tracks within the workspace of the trolley conveyor. A plurality of plant containers are supported for transport to and from the workshop by the trolley conveyor. The workshop may include air curtains at the trolley conveyor entrances and at the trolley conveyor exits, to separate the outside air from the inside air, so that suitable working conditions may be maintained in the workshop. In various embodiments, the tracks for the trolley conveyor may be supported by horizontal support structures such as pipes. Additionally, a vacuum system may be supplied at the worktables for use in cleaning plant containers, as well as the workspace. And a lubricant system may be provided for use in lubrication of the components of the trolley conveyor system. In an embodiment, a lubricating oil supply unit may be provided at the trolley conveyor outlet side of the workroom to periodically supply lubricating oil to the chain portion of the trolley conveyor, to smooth movement of the chain units in the chain portion.
The present invention(s) are described herein by way of exemplary embodiments, using for illustration the accompanying drawing in which like reference numerals denote like elements in the various figures of the drawing, and in which:
The foregoing figures, being merely exemplary, contain various elements that may be present or omitted from a particular final configuration for an embodiment of plant workshop system in a plant cultivation factory. Other variations in trolley system components, and in the supply of workstations for particular needs a workroom for a plan factory for cultivation of plants, such as watering, nutrient supply, pollination, pest control, and disease prevention, may include other mechanical structures, mechanical arrangements, or size and shape of components, and yet employ the principles described herein and as generally depicted in the drawing figures provided, and as more specifically called out in the claims set forth below. Detailed descriptions of configurations and functions of devices known by those of skill in the art are unnecessary, and have thus been omitted. However, there is no intention to limit the claimed invention to dimensional data, and any suggestion provided by any of the drawing figures of this specification are exemplary rather than mandatory. Thus, the chain assembly and related components for links in a trolley conveyor may be provided which is sized up or down from any dimensions depicted, without affecting the scope of the appended claims. An attempt has been made to draw the figures in a way that illustrates at least those elements that are significant for an understanding of exemplary trolley system for carriage of plant containers within a plant factory for efficient cultivation of plants, and particulars may be varied for specific plant production.
It should be understood that various features may be utilized in accord with the teachings hereof, as may be useful in different embodiments, depending upon the specific requirements such as spacing between passageways of runs of a trolley system, all within the scope and coverage of the teachings herein as defined by the claims. Further, like features in various embodiments for a trolley system for use in plant factories may be described using like reference numerals, or other like references, without further mention thereof.
Attention is directed to
An air curtain unit 300 is provided at boundary areas between the plant factory 20 and workshop 10, and between boundary areas between the plant factory 30 and workshop 10. For example, trolley conveyor 200 in plant factory 20, when moving in the direction of reference arrow 60, exits the plant factory 20 at the first plant factory exit 11, and the plant containers B which are being moved by the trolley conveyor 200 pass through an air curtain 300. When plant containers B return to plant factory 20, they pass through first plant factory entrance 13 and pass through an air curtain 300, as they exit the workshop 10. Likewise, trolley conveyor 200 in plant factory 30, when moving in the direction of reference arrow 80, exits the plant factory 30 at the second plant factory exit 15, and the plant containers B which are being moved by the trolley conveyor 200 pass through an air curtain 300. When plant containers B return to plant factory 30, they pass through second plant factory entrance 17 and pass through an air curtain 300, as they exit the workshop 10. In this manner, conditioned air in the workshop 10 is separated from air in the plant factory 20 and/or the plant factory 30, as the case may be, depending on operation of the trolley conveyor 200. In an embodiment, the plant containers B from plant factory 20 and from plant factory 30 may be introduced into workshop 10 at or near the same end, here indicated as 10i in
In an embodiment a suction system, i.e. an industrial vacuum system 400, may be provided for removal of dirt or other foreign material whether from plant containers B before the plant containers B are returned to the plant 20, or for removal of foreign substances from other parts of workshop 10.
In an embodiment, a lubricating oil supply unit 500 may be provided for supplying lubricating oil to the track 210, and/or the moving components, of the trolley conveyor 200.
In an embodiment, the space inside of workshop 10 may include a working table or work bench 600. A worker L can perform work related to the plant factory 20 or 30, using the work bench 600, such as removal of plants, or parts thereof such as leaves or fruit, from plant containers B, and packing plants, or parts thereof, for shipment. By use of the plant workshop system 1, the amount of labor required from workers L to handle large numbers of plants in plant factories 20 and 30 is significantly reduced. As depicted, a worker L in workshop 10, adjacent the plant factories 20 and 30 where large quantities of plants are grown at the same time, can easily and quickly attend to processing, harvest, and packing of plants A in plant containers B. Workers L in workshop 10 may perform a variety of activities on plants A, such as planting new plants, pruning, crossing, fruit collection, and harvesting leaves, roots or other components of plants A, as well as packaging the plants A and or products thereof for shipment. And, new plants A are easily and quickly placed in plant containers B, when using the workshop 10. Accordingly, it is possible to minimize the total labor required from workers L, and thus manage the plant factories 20 and 30 more efficiently.
Attention is now directed to
The horizontal support 110 may be continuously disposed along a path circulating through a plant factory 20 or 30, and extend out into and through workshop 10. The horizontal support 110 may be provided using pipe of suitable size and strength for the anticipated load. In an embodiment, the horizontal support 110 may be suspended from the interior structure S of the plant factory 20 or 30 by use of pipe hangers 40, which may include rod 40r and pipe clamp 40c.
As seen in
The pipe coupler 131 may be provided with an inner diameter corresponding to the outer diameter of the horizontal supports 110, for ease of fitting to and being secured with the horizontal support 110. The connection shaft 132 provided vertically under the pipe coupler 131 allows vertically length between the horizontal support 110 and the track 210 to be varied. In other words, the connection shaft 132 is used to adjust the distance between the height of horizontal support 110 (which is usually, but not always horizontal, for example, supports 110 may be inclined when used in a multi-story building) and the track 210. In an embodiment, the track hanger 130 may be directly connected to the pipe coupler 131 without use of a connection shaft 132.
The track seat plate 133 is provided in a plate shape having a selected area and width. In an embodiment, the track seat plate 133 is provided with width larger than the width of the track 210. The coupling arm 135 connects the connection shaft 132 and the track seat plate 133. The coupling arm 135 may be formed in a semicircular shape as shown, or may be formed in a “c” shape. As shown in
The track mount 120 is disposed above the track seat plate 133 and fixed thereto to position the track 210 seated on the track seat plate 133, so the track cannot be moved or separated. The track mount 120 includes a first vertical guide plate 121 and a second vertical guide plate 123 positioned left and right on the upper surface of the track seat plate 133. As shown in
A mounting plate engaging surface 121a is bent to the outside of the track 210 and is provided in a predetermined area under the first vertical guide plate 121. The seating plate coupling surface 121a is configured in contact with the track seating plate 133 and coupled by the coupling member 127. An upper bent end 121b bent inward of the track 210 is provided on the first vertical guide plate 121. The upper bent end 121b is bent toward the top of the track 210 to prevent the track 210 from being separated from the track mount 120.
An opening or hole 125 is formed between the upper bent end 121b of the first vertical guide plate 121 and the second vertical guide plate 123. The opening or hole 125 exposes the opening 211 of the track 210 so that the neck 231e of chain unit 230 and the neck unit of chain unit 240 can be moved along the track 210.
The trolley conveyor 200 is coupled to the horizontal support 110 to enable the transfer the plant containers B to the plant factories 20 and 30 and to the work shop10. The track 210 is fixed by the track mounting components 100 to form a path through which the chain portion 220 is circulated and moved.
In an embodiment, the track 210 may be formed in the shape of a square pipe or tube with an opening 211 formed thereon, as shown in
The chain portion 220 is formed by successively combining a plurality of chain units 230 and chain units 240 as shown in
A pair of first vertical rollers 231a are disposed in a vertical direction inside the track 210 as shown in
The first neck 231e is formed in the center direction from the top of the pair of first vertical roller support frames 231b and extends upward through the opening 211 of the track 210. The first neck 231e is formed smaller than the opening 211 so that it can be smoothly moved along the opening 211. The first hanger coupling flange 231d is formed to extend a predetermined area horizontally on the upper portion of the first neck 231e and is coupled to the flange coupling plate 263 of the hanger support 260. First fastening holes 231f are formed on both sides of the first hanger coupling flange 231d, and are coupled by the flange coupling plate 263 and the first fastening member 263a.
The first horizontal roller support part 233 includes a first horizontal roller 233a, a pair of first horizontal roller support frames 233b supported above and below the first horizontal roller 233a, and a first horizontal roller support frame. It includes a first horizontal roller rotation shaft 233c rotatably supporting the first horizontal roller 233a with respect to first horizontal roller support frames 233b. The first horizontal roller 233a is located in the horizontal direction of the track 210. The first horizontal roller 233a has an outer diameter corresponding to slight less than the width of the track 210 or is provided at a predetermined length smaller than the width.
The first unit chain 230 is provided in a form in which the first vertical roller support part 231 and the first horizontal roller support part 233 are combined together. The hanger support 260 is provided eccentrically. When the body 261 of hanger support 260 is eccentrically disposed on one side of the track 210 in a “C” shape, and the plant container B is loaded on the plant container support 270 provided under the hanger support 260, it becomes eccentric to one side. That may be problematic, since when the hanger body 261 is eccentric in this way, the chain potion 220 may be inclined to one side inside the track 210 and may not move smoothly within the track 210. Thus, in order to solve this problem, the chain portion 220 as described herein is provided in the form where chain units are joined back to back in a configuration in which vertical rollers and horizontal rollers are alternately arranged.
The track hangar 130 and its coupling arm 135 and the pair of hanger support 260 the hanger body 261 are disposed in opposite directions around the track 210. Such a configuration is, in part, to align the loads along a center of gravity of along both left and right sides so that the chain portion 220 can more stably move along the track 210. In an embodiment, as seen in
The hanger supports 260 are provided with a horizontal flange 263 at the top. The hanger body 261 may be bent in a “C” or “c” shape. The flange coupling plate 263 is configured for contact with the flange 241d. A bracket coupling plate 265 is provided perpendicular to the lower end of the hanger body 261 and coupled to the hanger coupling bracket 273 of the plant container support 270. The hanger body 261 is disposed on one side of the chain portion 220. The hanger body 261 may be configured to extend from a side of the track 210, although it is centered with track 210 at the upper ends and at the lower end. The flange coupling plate 263 is provided at an area corresponding to the hanger coupling flanges 231d and 241d of each chain units 230 and 240, and configured for stacking on the hanger coupling flanges 231d and 241d, and connected with the first fastening members 263a The bracket coupling plate 265 is disposed vertically under the hanger body 261 and is inserted between the pair of hanger coupling brackets 273 of the plant container support 270. The bracket coupling plate 265 and the pair of hanger coupling brackets 273 are coupled by a second fastening member 275.
As seen in
As seen in
A pair of first vertical rollers 231a are disposed inside the track 210 on both sides, and the first vertical rollers 231a move while contacting the bottom surface of the track 210. The pair of first vertical rollers 231a move along the bottom surface of the track 210 and support a vertical load. When the first horizontal roller 233a is moved along the inside of the track 210, it is rotated by contacting the inner wall surfaces of sides of the track 210, and thus the chain portion 220 is not eccentric in one direction and can be moved in a balanced fashion.
The first vertical roller support part 231 and the second vertical roller support part 241 are coupled by an intermediate connection block 235. The intermediate connection block 235 is coupled between a pair of first vertical roller support frames 231b and a pair of first horizontal roller support frames 233b. The intermediate connection block 235 may be provided in the form of a rectangular parallelepiped block. In the intermediate connection block 235, a first intermediate horizontal connection shaft insertion hole 235a is formed therethrough in a horizontal direction, and a first intermediate vertical connection shaft insertion hole 235b is formed therethrough a vertical direction. The first intermediate horizontal connection shaft 235c is inserted through the pair of first horizontal roller support frames 233b disposed on the left and right into the first intermediate horizontal connection shaft insertion hole 235a. The first intermediate vertical connection shaft 235d is inserted into the first intermediate vertical connection shaft insertion hole 235b through a pair of first vertical roller support frames 231b arranged vertically.
When the first vertical roller support part 231 and the second vertical roller support part 241 are combined with each other and move along the track 210 by the connection structure of the intermediate connection block 235, the first vertical roller support part 231) And the second vertical roller support part 241 may be rotated vertically around the first intermediate horizontal connection shaft 235c, and may rotate left and right around the first intermediate vertical connection shaft 235d. Accordingly, the chain portion 220 not only moves smoothly through the straight track 210, but can also move smoothly through the curved track portions. Further, a first end connection block 237 is provided at a rear end of the first horizontal roller support part 233. The first end connection block 237 is used to connect to a chain unit located in front of the first chain unit 230. The first unit chain 230 and the second unit chain 240 are coupled by a second end connection block 247. The second end connection block 247 is provided between the first vertical roller support frame 231b of the first unit chain 230 and the second horizontal roller support frame 243b of the second unit chain 240. The first vertical roller support frame 231b is coupled to be rotatable up and down by a second end connection block 247 and a second end horizontal connection shaft and the second horizontal roller support frame 243b at a second end. The connection block 247 and the second end vertical connection shaft are coupled for left and right rotation. Consequently, the chain units 230 and 240 are configured adjacent to each other and are coupled to each other so as to be able to rotate up and down and left and right at the first end connection blocks 237 and 247. The chain portion 220 to which the chain units 230 and 240 are continuously coupled can smoothly move through portion of track 210 of various shapes.
The horizontal rollers and vertical rollers alternately provided in each of the chain units 230 and 240 are in contact with the bottom surface and the inner surface of the track 210 and can be moved in balance without being eccentric. Accordingly, the first neck 231e does not come into contact with an edge of the opening 211 of the track 210 when the chain portion 220 is be moved. Thus, this avoids generating noise or foreign matter when the chain portion 220 is moved.
The chain portion 220 is driven by a chain driving units may be provided around the track 210 at regular intervals so that the chain portion 220 moves smoothly. The chain driving unit (not shown) may include an electric motor and a drive unit that transmits power from the motor to the chain portion 220. The chain drive unit may be controlled via a control signal from a control unit (not shown).
An air curtain unit 300 may be provided at the trolley entrances to the workroom 10 at the first plant factory exit 11 and at the exit from the workroom 10 at the first plant factory entrance 15. Similarly, an air curtain unit 300 may be provided at trolley entrance to the workroom 10 at the second plant factory exit 13 and at the trolley exit from workroom 10 at the second plant factory entrance 17, as shown in
In an embodiment, an industrial plant vacuum cleaner 400 may be disposed at the trolley outlets 13 and 17 to remove foreign substances generated in the plant container B while working in the workshop 10.
In the workshop 10, the worker L may supply water to the plants A planted in the plant containers B, remove withered leaves, or performs pruning. Accordingly, during handling, water may accumulate in the plant container B, or leaves or removed branches may be detached. In an embodiment, the plant vacuum system 400 may be a wet/dry type vacuum. Thus, when the worker uses the foreign substance suction line 420, a suction is placed on the surface of the plant container B (or may be used on other surfaces), and foreign substances D and drained water, for example from the plant container B, may be removed. The foreign matter discharge pipe 430 may connected outside of the workshop 10 to discharge foreign matter to the outside.
Attention is directed to
When the trolley conveyor 200 is moved to the workshop 10, the worker L may turn the drive for the chain portion of the trolley conveyor 200 on or off, or may adjust the working speed. In an embodiment, the lubricating oil supply unit 500 supplies lubricating oil to each of the unit chains of the trolley conveyor 200, which as they pass through the trolley outlets 13 and 17 of the work shop 0 and is moved to the plant factories 20 and 30. When the management of the plants A in the plant containers B is completed, the worker L drives the trolley conveyor 200 and the plant containers B on which the work is completed to a desired location, and brings in new plant containers B for work.
While the present invention(s) for a plant workshop system 1 have been described for use with a single story building, that is only an example, A plant workshop system may be provided on each floor of a multi-story plant factory. Or, a plurality of plant workshop systems 1 may be provided on each, or one or more floors, of a multi-floor building. And, a plant workshop system 1 may be provided in the middle on the path of the trolley conveyor 200, as well as at the end of a trolley conveyor 200, when the scale of a plant factory is large.
Although only a few exemplary embodiments have been described in detail, various details are sufficiently set forth in the drawings and in the specification provided herein to enable one of ordinary skill in the art to make and use the invention(s), which need not be further described by additional writing in this detailed description. It will be readily apparent to those skilled in the art that the plant workshop system 1, and the plant factory 20 and 30 details as described herein, may be modified from those embodiments provided herein, without materially departing from the novel teachings and advantages provided.
The aspects and embodiments described and claimed herein may be modified from those shown without materially departing from the novel teachings and advantages provided, and may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Therefore, the embodiments presented herein are to be considered in all respects as illustrative and not restrictive. As such, this disclosure is intended to cover the structures described herein and not only structural equivalents thereof, but also equivalent structures. Numerous modifications and variations are possible in light of the above teachings. It is therefore to be understood that within the scope of the appended claims, the invention(s) may be practiced otherwise than as specifically described herein. Thus, the scope of the invention(s), as set forth in the appended claims, and as indicated by the drawing and by the foregoing description, is intended to include variations from the embodiments provided which are nevertheless described by the broad interpretation and range properly afforded to the plain meaning of the claims set forth below.
Number | Date | Country | Kind |
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1020180109014 | Sep 2018 | KR | national |
1020190067522 | Jun 2019 | KR | national |
1020190152547 | Nov 2019 | KR | national |
Not Applicable.
Number | Date | Country | |
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Parent | PCT/KR2019/008581 | Jul 2019 | US |
Child | 17105280 | US |