Retrofit unwinder

Abstract

To provide a retrofit unwinder in which an existing roll (3) winds up a string (2) and an existing vinyl (4) together when closing the greenhouse, so that the string (2) pulls down the existing roll (3), since when lowering the existing vinyl (4) of a conventional vinyl greenhouse (5) to close it, even if the existing roll (3) is rotated, a part of it gets turned up and the wrinkles prevent the rotation.SOLUTION: In the retrofit unwinder of the present invention, a winder (1) winds multiple strings (2), each of which is connected to an existing roll (3). When the winder (1) is rotated and the strings (2) are unwound, an existing vinyl (4) is released and falls.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a post-attached winding and unwinding device that winds up a string when a vinyl greenhouse is surrounded with vinyl, and the vinyl falls off. [Background technology]

[0002] Conventional greenhouses are used to maintain a constant temperature so that leafy vegetables can be shipped all year round. Also, to protect them from the effects of the weather, they are enclosed with existing vinyl, blocking out the outside air temperature and maintaining an appropriate temperature. Also, vegetables such as tomatoes can crack if they are given more water than necessary on rainy days, so to prevent this, vegetables are shipped in greenhouses all year round. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-136945 [Patent Document 2] Patent Publication No. 2021-36905 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0004] In conventional greenhouses, the existing vinyl was opened and closed to protect it from the weather, but if the greenhouse is 30 meters deep, the existing roll is also 30 meters long, so the work of rolling up the existing vinyl and closing it is smooth. However, opening it is time-consuming. This is because the existing vinyl becomes loose at 30 meters, and when rotating the existing roll, there are areas on the surface where it does not rotate and areas where it does not come down.

[0005] This was on a gently sloping ceiling, and even when the existing roll was rotated, there was a spot where the surface of the existing vinyl would not rotate. When this happened, a part of the existing roll would get caught, and the existing roll would not rotate any further. If the roll was then rotated in the opposite direction, a different part would get tangled, and the roll would not rotate any further. There was no other way, so a ladder was placed over the tangled part, and the tangled part could be turned by hand, straightened, and lowered. If it was 30 meters long, it would take a lot of manpower to find the tangled part, so it was difficult to surround the greenhouse (5) with the existing vinyl (4).

[0006] Therefore, the retrofitting unwinder of the present invention winds up a number of strings (2) on a winder (1), and the other end of the strings (2) is wound around an existing roll (3) together with the existing vinyl (4) and strings (2), so that when the strings (2) are pulled down, the existing roll (3) is pulled down as well. This is an after-installation unwinder. [Means for solving the problem]

[0007] In order to achieve the above object, the retrofit unwinder of the present invention is composed of a winder (1), a string (2), and an existing roll (3), and the winder (1) winds up a large number of strings (2).

[0008] The other end of the string (2) is wound around the existing roll (3) together with the existing vinyl (4), and by winding up the string (2) on the winder (1), the string (2) lowers the existing roll (3), and the existing vinyl (4) encloses the greenhouse (5), thereby achieving the purpose. [Effects of the Invention]

[0009] The rear unwinder of the present invention has the following effects. (i) When lowering the vinyl, it is easy to do by turning the reel and the string lowering the roll. (See paragraph 0012 for details) (b) The retrofit winder / unwinder can be attached to a conventional greenhouse, so there is no waste. (See paragraph 0015 for details) (c) It is easy to wind up and down, so one person can do it. (See paragraph 0012 for details) (d) He can handle emergencies such as typhoons by himself. (See paragraph 0027 for details.) [Brief explanation of the drawings]

[0010] [Figure 1] The figure is a perspective view of a greenhouse. [Figure 2] The figure shows a front view of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

[0011] The retrofit winder of the present invention unwinds the existing vinyl (4) in the greenhouse (5) to the end and wraps the string (2) around the existing roll (3) in several places. When the existing roll (3) is rotated to wind it up, the existing vinyl (4) and string (2) are wound up together. The existing vinyl (4) that has been wound up to the end also has the string (2) wound up, and the other end of the string (2) is attached to the winder (1).

[0012] Then, by winding the string (2) onto the winder (1), the existing vinyl (4) wrapped around the existing roll (3) and the string (2) are pulled tight by the string (2), which rotates the entire existing roll (3) downward and exerts a force that unwinds the existing vinyl (4). Because there are many strings (2), each 1.5 meters long, they do not get tangled, and the string (2) also eliminates any slack in the existing vinyl (4), making it possible to unwind it by one person. Also, when releasing the existing vinyl (4), it can be easily wrapped around the existing roll (3).

[0013] Therefore, winding down can be easily done by simply installing a new retrofit winder without modifying the greenhouse (5). When winding up the existing vinyl (4) in the greenhouse (5), as before, by winding the existing roll (3), the string (2) naturally rotates the winder (1) in the reverse direction, and the string (2) is supplied and wound onto the existing roll (3) together with the existing vinyl (4). At that time, the string (2) acts as resistance, so the existing vinyl (4) is securely wound. Example 1

[0014] The branch pruner of the present invention will be described with reference to the drawings. Figure 1 is a perspective view of a greenhouse (5), which usually has a back side and two additional winding and unwinding devices on the front and back sides, but only the right side is shown. The greenhouse (5) is 6 meters long, 30 meters deep, and 4 meters high. The existing roll (3) is an iron pipe Φ34 approximately 30 meters long, wrapped with nine strings (2) approximately every 3 meters, and the strings (2) are wrapped around the existing roll (3) together with the existing vinyl (4).

[0015] By pulling the string (2), the existing roll (3) will come down, but since it is impossible to pull all nine strings (2) in the same way, a winder (1) is provided. Therefore, with the retrofit winder of the present invention, the existing vinyl (4) can be left in place and a new winder (1) can be simply installed, making it easy to unwind and unwind the existing vinyl (4).

[0016] The reel (1) has nine strings (2) wound clockwise around a Φ34 pipe on a fixed pulley, and by turning the handle (1a) of the reel (1) to the right, the existing roll (3) on the movable pulley rotates to the right, causing the existing vinyl (4) and strings (2) to unwind and drop, causing the entire existing roll (3) to drop down.

[0017] Therefore, this winder (1) is used only to lower the existing roll (3), and when winding the existing roll (3), the handle of the existing roll (3) is turned left to wind the movable pulley and raise the existing roll (3) itself. Note that the handle of the existing roll (3) is the same as the handle in Patent Document 1, JP 2021-136945, and is not shown in the drawings.

[0018] When it gets warmer and you want to roll up the existing vinyl (4) in the greenhouse (5) to make it the same temperature as outside, turn the existing roll (3) of the movable pulley counterclockwise and roll it up to the top of the greenhouse (5). At that time, the string (2) is also wound onto the existing roll (3) along with the existing vinyl (4), and when the winder (1) rotates counterclockwise, the wound string (2) is unwound from the winder (1) and wound onto the existing roll (3).

[0019] Therefore, when opening the existing vinyl (4) by rolling it up, turn the existing roll (3) to the left, and when closing it, turn the winder (1) to the right. Therefore, by using the existing roll (3) and the winder (1) appropriately, opening and closing can be done easily.

[0020] FIG. 2 is a front view of the present invention, in which when the handle (1a) of the winder (1) is rotated as shown by the arrow, the string (2) is wound up and unwound from the existing vinyl (4) in the greenhouse (5) as shown by the existing dotted roll (3').

[0021] The existing vinyl (4) is 4 meters long and 30 meters wide, and there is an existing roll (3) that is wound up to about 1.5 meters, and underneath that is an existing roll (3') drawn with a dotted line. The existing roll (3') has been rotated one turn by turning the handle (1a) in the direction of the arrow.

[0022] To surround the greenhouse (5) with the existing vinyl (4), simply operate the handle (1a) of the winder (1), which is rotated in the direction of the arrow, like the hands of a clock. The winder (1) winds the string (2) onto the winder (1), and the string (2) rotates the existing roll (3) clockwise, forming a dotted line on the existing roll (3') below. When the existing vinyl (4) is then lowered, the greenhouse (5) is surrounded by the existing vinyl (4).

[0023] When opening the greenhouse (5), the handle attached to the existing roll (3) is turned counterclockwise, causing the existing roll (3) on the movable pulley to rise, and the string (2) is wound up together with the existing vinyl (4). The string (2) wound around the existing roll (3) naturally rotates counterclockwise around the winder (1), supplying the string (2).

[0024] Therefore, the power supplying the string (2) also adds to the resistance of the existing roll (3) as it winds, so the existing vinyl (4) wound around the existing roll (3) is securely wound.The existing vinyl (4) can then be stored up to the ceiling of the greenhouse (5), and the string (2) hangs down from the existing roll (3) on the wound ceiling to the winder (1). Example 2

[0025] Here is how to attach the string (2). Lower the existing roll (3) of the greenhouse (5) as far as it will go, and tie nine pieces of string (2) at 3 meter intervals to the pipe of the existing roll (3). Then, drill holes in the existing vinyl (4) and tie them to the existing roll (3). Then, the string (2) will be sandwiched between the existing vinyl (4), and by wrapping the existing roll (3), the string (2) will be wrapped around it and stopped at the ceiling.

[0026] Then, tie the other end of the string (2) to the winder (1). When you want to close the existing vinyl (4), turn the handle (1a) in Figure 2 in the direction of the arrow, which tensions the string (2), and the existing roll (3) unwinds the existing wrapped vinyl (4), with each string (2) supporting the outside of the existing wrapped vinyl (4) so ​​that it drops. Then, with a total of nine strings (2) in place, the existing vinyl (4) rotates clockwise by the amount of tension of the strings (2), and as the existing vinyl (4) drops down, the strings (2) wrapped around the existing roll (3) also drop down and are wound around the winder (1). Example 3

[0027] Here is an example of how to use it during a typhoon. It is easy to open and close normally, but if strong winds such as a typhoon are expected, you can leave it as it is and leave the greenhouse (5) to chance, even if it might collapse, or you can wrap the existing plastic (4) of the greenhouse (5) around it to reduce wind resistance as much as possible and protect the greenhouse (5). However, when using this invention, the existing plastic (4) can be easily rolled up, making it an easy idea.

[0028] At that time, when damage from a typhoon is expected, the existing vinyl (4) can be wrapped around the existing roll (3) to reduce the wind resistance of the greenhouse (5), and since only the support posts of the greenhouse (5) remain, it is unlikely to be destroyed by wind resistance.

[0029] However, the crops inside were exposed to wind and rain and suffered some damage, but considering that the existing plastic (4) would have been blown away by the wind and, in the worst case scenario, the support poles would have been deformed, I think it was a good thing that I had left the existing plastic (4) open. Example 4

[0030] The symbols will be explained in detail. The reel (1) is a Φ34 pipe and a fixed pulley, so it is fixed to the greenhouse (5) at the fixed part (1b) and reels up nine pieces of string (2). This reel (1) is used only when enclosing the greenhouse (5) with the existing vinyl (4), and when reeling up the existing vinyl (4), it is reeled up on the existing roll (3). When reeling up on the existing roll (3), the string (2) is pulled, and the string (2) pulls the reel (1), causing the reel (1) to rotate in the reverse direction, and the string (2) wound around the reel (1) is reeled up together with the existing vinyl (4).

[0031] The handle (1a) is a part of the winder (1), and was installed because it requires less force to turn the Φ400 handle (1a) than to turn the small Φ34 pipe to turn the pipe of the winder (1). It would also be possible to make the handle (1a) roughly L-shaped, but the handle (1a) is easier to recognize as a handle (1a) because it is the handle of a large valve, so it was shaped that way. The handle (1a) is a mechanism that automatically reverses the winder (1) when the existing vinyl (4) is wound up, so it is necessary to ensure that it does not get caught on any protrusions when it rotates. There are three or more fixed parts (1b) in total, which prevent the pipe of the winder (1) from moving up or down. Therefore, although they are called fixed parts (1b), the pipe inside the winder (1) is rotatable. The string (2) is the most important part of this invention. As long as there is the string (2), it is possible to pull the string (2) and surround the greenhouse (5) with the existing vinyl (4). However, it is difficult for one person to operate the string (2), so a reel (1) was installed. There are a total of nine strings (2), with 30 meters of string attached in 3-meter increments. The strings (2) on both ends are attached to the ends of the existing vinyl (4) to prevent it from twisting. It is also better for the string (2) to have some elasticity so that the existing vinyl (4) can be evenly and evenly wrapped.

[0032] The existing roll (3) is a 30-meter-wide movable pulley that normally requires a handle for winding the roll, but since this invention is only for unwinding, the handle for the existing roll (3) is not shown in the drawings. This existing roll (3) only winds, and unwinds by the winder (1) pulling the string (2). Therefore, it is desirable for the existing roll (3) to have a one-way gear that only winds. The existing roll (3') is depicted by a dotted line in Figure 2 after the handle (1a) has been turned once in the direction of the arrow. The existing vinyl (4) is 30 meters wide and was originally attached to the greenhouse (5). The present invention is characterized in that the existing roll (3) is lowered to its full extent, a string (2) is attached to the pipe of the existing roll (3), and the existing vinyl (4) and the string (2) are wound together. The greenhouse (5) is supported by Φ23 pipes and is surrounded by existing vinyl (4). [Industrial Applicability]

[0033] This rear-mounted winder is good at winding up the tea in a horizontal direction. To protect Gyokuro tea from sunlight, black shielding sheets were placed over the tea, but by using this invention, the entire greenhouse (5) can be unwound with a single operation. [Explanation of symbols]

[0034] 1 Winder 1a Handle 1b Fixing part 2 String 3 Existing roll 4 Existing vinyl 5 Greenhouse

Claims

[Claim 1] The retrofit unwinder is composed of a winder (1), a string (2), and an existing roll (3). The winder (1) winds up a number of the strings (2), The other end of the string (2) is wound around an existing roll (3) together with an existing vinyl (4), forming a post-installed unwinder.

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