JP4620080B2 - Opening and closing mechanism of the greenhouse - Google Patents

Description

  The present invention relates to a mechanism and device for opening and closing vinyl in a greenhouse.

  The greenhouse is effective not only for cultivating plants by keeping warm air in the room during the cold season, but also for ventilating the room by providing exhaust air for the hot air staying in the ceiling during hot weather. It is an effective facility for promoting and growing summer vegetables. That is, by letting out the high temperature air in the upper part, it is possible to naturally take in cool outside air from the windows and doorways provided in the lower side wall and maintain a suitable environment. If it is a large house such as a farm, there are some that have a mechanism that opens and closes a part of the vinyl that can be opened and closed on the ceiling, but this is a large facility. The cocoon-shaped simplified greenhouses that are often used by private farmers are generally skeleton-like structures made of metal or synthetic resin pipes that are installed at predetermined intervals. A vinyl sheet is stretched on the back. This saddle-type simple greenhouse is designed to cover and cover the entire roof using a large number of rigid metal fittings, etc., to secure a large sheet. However, there is a problem that it is structurally very difficult to open and close the roof according to the climatic conditions.

In view of this problem, the present applicant previously installed a manual opening / closing device for a greenhouse in which a single type of greenhouse such as a saddle type can be used to perform the opening and closing operation of the ceiling and the side wall part by itself. It was proposed to be provided (Patent Document 1) and registered as Japanese Patent No. 3642747. The present invention relates to a saddle-type plastic greenhouse that has a pipe-like structure as a framework, and divides the vinyl sheet covering the semi-cylindrical portion and the side wall of the house in half along the ridge, and winds the vinyl sheet on the side wall portions on both sides. In addition to installing a roll to be taken, reels for taking up a draw-out string member attached to the draw-out end portion of the vinyl sheet are respectively installed on the opposite side wall portions. When winding and winding a vinyl sheet with this method, if the winding shaft becomes longer, a bending phenomenon occurs as the load increases, and the position of multiple reels that wind up the vinyl sheet or wind up the drawout string member is distorted. As a result, an unreasonable force was applied to each of them, and a smooth drive could not be performed or the members were damaged. Also, the drawer string member was tied to a drawer cage fixed to the end of the vinyl sheet to pull out the vinyl sheet. However, since the vinyl sheet is a material that stretches when pulled, There was also a problem that the sheet stretched locally, the vinyl sheet was distorted and could not be taken up neatly, and the load applied to the take-up shaft became uneven and smooth winding drive could not be performed.
Japanese Patent Laid-Open No. 2002-78423 “Manual Opening and Closing Device for a Plastic House” published on March 19, 2002

  An object of the present invention is to provide a mechanism for smoothly opening and closing a vinyl sheet by preventing a winding shaft for winding or drawing the sheet from being bent by a load in an apparatus for opening and closing a vinyl sheet in a greenhouse. Is to provide.

In the greenhouse sheet opening and closing device of the present invention, a roll for winding a vinyl sheet or a string member for pulling out a vinyl sheet is provided on a side wall portion of a bowl-shaped greenhouse structure in which pipe members are continuously arranged at an appropriate interval. A support member for maintaining the shaft on which the take-up reel is installed horizontally is attached to the pipe-like structure in the central region of the shaft, and the support member of the roll for taking up the vinyl sheet is vinyl wound on the roll. The cross section for receiving the sheet is composed of a semi-circular eave member and a member that holds the eave member from below and is fixed to the pipe member, and is reinforced at the portion of the vinyl sheet that contacts and slides A drawer rod to which a tape is attached and an end of the reinforcing tape is connected to a drawer string member at the edge of the sheet And wherein the attached.
The saddle member having a semicircular cross section has a long shape extending over a plurality of pipe members .
Further, in the greenhouse sheet opening and closing device of the present invention, as a support member for maintaining the shaft on which the reel for winding the vinyl sheet drawing-out string member is maintained horizontally, there are a plurality of holes through which the shaft passes in the shaft length direction. It shall consist of the member provided.

In the greenhouse sheet opening and closing device of the present invention, a roll for winding a vinyl sheet or a string member for pulling out a vinyl sheet is provided on the side wall portion of a bowl-shaped greenhouse structure in which pipe members are continuously arranged at an appropriate interval. Since the support member that keeps the shaft on which the take-up reel is installed horizontally is attached to the pipe-like structure in the central region of the shaft, the shaft is prevented from bending and deforming even when subjected to a load. The sheet can be drawn and taken up smoothly.
In addition, as a support member for maintaining a shaft on which a roll for winding a vinyl sheet is maintained horizontally, a cross-sectionally shaped semi-circular hook member that receives the vinyl sheet wound on the roll and a pipe member that holds the hook member from below With the sheet opening and closing device of the greenhouse according to the present invention, which is composed of a member fixed to the shaft, the lowermost end portion of the wound vinyl sheet is always held in contact with the flange member, so that the shaft axis can be kept horizontal. Smooth winding and withdrawal.
Further, the present invention comprises a member in which a plurality of holes through which the shaft passes is provided in the shaft length direction as a support member for maintaining a horizontal shaft on which a reel for winding a vinyl sheet drawing string member is installed. In the greenhouse sheet opening and closing device, the intermediate position of the shaft is rotatably supported at a plurality of locations, so that the shaft is prevented from bending and the reels installed at the plurality of locations are wound in the same position and orientation. A payout is made. This makes it possible to smoothly unwind and feed out the vinyl sheet drawer string member.
Further, in the sheet opening and closing device of the greenhouse according to the present invention, a reinforcing tape is attached to a portion that contacts and slides on the pipe member of the vinyl sheet, and the end portion of the reinforcing tape is a drawing string member at the edge of the sheet By adopting a configuration that is attached to the drawer cage that is connected to the vinyl sheet, it is possible to prevent the vinyl sheet from stretching due to the tension applied during winding and unwinding. The In addition, it slides in contact with the pipe member at the time of winding and unwinding, but wear at that time can be prevented, and the vinyl sheet can be made long lasting.

FIG. 1 shows one form of a greenhouse to which the apparatus of the present invention is applied. The walls of both ends where the doorway is installed in a simple vertical house are omitted, and only the opening and closing mechanism of the arch-shaped pipe structure and vinyl sheet is shown. Regarding the configuration and operation of a manual opening and closing device for a greenhouse, refer to Patent Document 1, and before describing an embodiment of the present invention, an outline thereof will be described.
This greenhouse sheet opening and closing device is provided with a roll 3 for winding up a vinyl sheet 2 that covers a half-walled plastic greenhouse, such as a saddle type, with the pipe-like structure 1 as a framework, and covers the vinyl sheet 2. A reel 4 for winding the drawer string member 5 attached to the drawer end is installed on the side wall. The draw-out string member 5 is guided into the guide portion integrally formed with the pipe-like structure 1 or the pipe of the pipe-like structure 1, and the take-up is performed. A guide mechanism is adopted in which the leading end portion of the vinyl sheet 2 is fixed to a drawer rod 6 and the pipes of the structure are used as rails and rollers 17 arranged on the drawer rod 6 at the same interval as the structure 1 travel. Yes. A belt-like member is used for the draw-out string member 5 guided by the guide member, and a material having high tensile strength in which a reinforced vinyl is used and a thread is contained as a core material is preferable.

  The reel 4 for the drawer string member 5 is fixed to the rotary shaft 8 at the same interval as the pipe-like structure 1, and both ends of the shaft 8 are supported by bearings 9 attached to pillars 7 standing at the outer four corners of the house. It is rotatably installed and is driven to rotate by a handle 10 attached to one end. Of course, this may be an electric form instead of manual. A drawer operation is performed. The roll 3 around which the vinyl sheet 2 is wound is also fixed to the shaft 8 in the same manner as the reel 4, and both ends of the shaft 8 can be freely rotated by bearings 9 attached to the pillars 7 standing at the outer four corners of the house. It is installed and rotationally driven by a handle 10 attached to one end. In the embodiment shown in FIG. 1, three stages of handles are arranged on the upper and lower sides, the upper stage is for the winding roll of the vinyl sheet, the middle stage is for the reel of the drawstring member, and the lower stage is the winding of the net 11 for adjusting sunshine. It is taken. When the upper handle 10 is turned, the vinyl sheet 2 stretched on the front ridge is wound around the roll 3. In the state of being wound around the roll 3 and being in the open state, the operation of stretching the vinyl sheet 2 moves to the opposite ridge and rotates the middle handle 10. Then, the reel 4 winds up the drawer string member 5, pulls out the vinyl sheet 2 wound up by the roll 3, and stretches it on the pipe member 1.

As described above, when the handle 10 is rotated and the vinyl sheet 2 is wound around the roll 3 or when the drawer string member 5 is wound around the reel 4, a load is applied and the shaft 8 is bent. It is an object of the present invention to solve this problem.
The greenhouse sheet opening and closing device of the present invention includes a roll 3 for winding a vinyl sheet 2 or a vinyl sheet drawer string on a side wall portion of a bowl-shaped greenhouse structure in which pipe members are continuously arranged at an appropriate interval. The support member that maintains the shaft 8 on which the reel 4 that winds up the member 5 is installed horizontally is attached to the pipe member 1 in the central region of the shaft 8.

  The member 12 shown in FIG. 2 is a scissors member (see A in the figure) having a semicircular cross section for receiving the roll 3 for winding the vinyl sheet 2 and supporting it in a horizontal state. It is made of a metal plate such as plastic or tinplate. The member 13 is a member for attaching the flange member 12 to the pipe member 1. In the example shown here, as shown in B of the figure, a U-shaped receiving portion, bracket portion, and end portion that support the flange member 12 from below are provided. Is composed of a holder portion 13a for gripping the pipe member 1 and a tightening screw 13b (see C: partially enlarged view in the figure). An appropriate form can be designed. A form in which this embodiment is attached to the pipe member 1 is shown in FIG. The pipe member 1 is clamped in the holder portion 13a of the attachment member 13, and the fastening screw 13b is fastened and fixed. The attachment member 13 is attached to the plurality of pipe members 1, and the flange member 12 is horizontally supported by the U-shaped receiving portion. The U-shaped receiving portion and the flange member 12 may be joined by an appropriate method such as adhesion or welding, but a fixing method that prevents protrusions from occurring on the inner surface of the flange member 12 is desirable. This is because the protrusion does not scratch the sheet surface when the vinyl sheet 2 is rolled up and pulled out. Moreover, since the thickness dimension of the sheet | seat 2 wound by the roll 3 changes with the wound state, in order to take the form by which the lowest end part of the wound vinyl sheet 2 always contacts and contacts the inner surface of a saddle member It is desirable that the bearing 9 for supporting both ends of the shaft 8 is attached to the support column 7 in such a manner that it can move only in the vertical direction by the thickness variation. The horizontal holding of the roll 3 by the flange member 12 is realized, and the shaft 8 can be maintained in the horizontal direction, so that smooth winding and drawing can be performed.

Next, FIG. 4 shows an embodiment of a support member for maintaining the shaft 8 on which the reel 4 for winding the string member 5 for pulling out the vinyl sheet is installed horizontally. The example shown in FIG. 2A is a support member 14 in which both ends of a plate-like body are raised at a right angle and a U-shape is formed, and holes 14 a through which the shaft 8 passes are formed in the vertical portions on both sides of the support member 14. Is. A bracket portion is integrally fixed to the lower surface of the support member 14, and a holder portion 14b for gripping the pipe member 1 and a fastening screw 14c are integrally attached to the opposite end portion thereof. A form in which this embodiment is attached to the pipe-like structure 1 is shown in FIG. The pipe member 1 is clamped by the holder part 14b of the support member 14, and the fastening screw 14c is fastened and fixed. A support member 14 is attached to the plurality of pipe-like structures 1 so that the shaft 8 is received and supported horizontally through the through holes 14a.
The support member 15 shown in FIG. 4B also serves as a house pipe reinforcing material that stabilizes and strengthens the positional relationship between the pipe members 1. As shown in the drawing, a member having a through hole 15a is integrally attached at a substantially pipe interval, and a hole 15b that is formed in accordance with the position of the pipe member 1 is disposed. As shown in the drawing, the hole 15b is fitted into the pipe member 1 (broken line) and is fixed horizontally by welding or an appropriate fixing member. As a result, the shaft 8 is stably maintained in a horizontal state, and the positional relationship of the pipe member 1 is also stable and strong.

  Next, a preferred embodiment for reinforcing the house sheet is shown in FIG. As a mechanism for smooth opening / closing operation of the vinyl sheet, not only does the winding shaft that winds or pulls out the sheet prevent bending due to the load, but the vinyl sheet 2 partially extends during the process of use. It is also an important issue to prevent distortion. Therefore, in the present invention, the reinforcing tape 16 is attached to the portion that comes into contact with and slides on the pipe member 1, and the end of the reinforcing tape is connected to the drawer rod 6 to which the drawer string member 5 is connected at the edge of the sheet. The structure fastened to the attached roller 17 was adopted. As long as the reinforcing tape 16 has tensile strength and friction strength, a commercially available adhesive tape can be used. By adopting this configuration, the vinyl sheet 2 is reinforced with the reinforcing tape stretched at a predetermined interval in the pulling direction when the vinyl sheet 2 is wound around the horizontally-maintained roll 3, so that the sheet 2 partially extends. Therefore, the force acts uniformly and the winding is stably performed. Further, when pulling out, the pulling-out force of the pull-out cord member 5 wound under uniform conditions by the reel 4 fixed to the shaft 8 kept horizontal is applied to the pull-out bar 6 at the end of the sheet 2 at the same interval as the structure 1. It acts on the drawer trough 6 through the arranged roller 17 and acts as a force for pulling up the vinyl sheet 2 as a whole, thereby performing a stable drawer. At this time, since the sheet 2 is reinforced with a reinforcing tape stretched at a predetermined interval in the pulling direction, the sheet 2 does not partially extend and a force acts uniformly, and the winding is stably performed. It is the same as when taking. Moreover, when the sheet 2 is taken up or pulled out, it slides on the pipe member 1, but the reinforcing tape 16 is attached to this contact portion, so that the sheet is prevented from being worn. There is also an effect of being able to.

  The present invention has been described assuming an agricultural greenhouse. However, the sheet winding mechanism of the present invention is not limited thereto, and other sheet member winding and pulling mechanisms, for example, introduced in Patent Document 1 above. It can also be applied to snow removal equipment for houses.

It is a figure which shows the example which applied the winding-up and drawing-out mechanism of the sheet | seat member of this invention to the greenhouse. It is a figure which shows the example of the member which receives the roll which winds up a vinyl sheet, and supports it in a horizontal state. It is a figure which shows the form which attached the member which supports a roll in a horizontal state to the pipe member. It is a figure which shows the supporting member which maintains the shaft which installed the reel which winds up the string member for vinyl sheet drawer | drawing-out horizontally. It is a figure which shows the form which attached the member which supports a reel in a horizontal state to the pipe member. It is a figure which shows the form which reinforces so that it may extend partially and may not be distorted in the process in which a vinyl sheet is used.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Pipe member (structure) 2 Vinyl sheet 3 Sheet wind-up roll 4 Pull-out string member take-up reel 5 Draw-out string member 6 Drawer collar 7 Post 8 Shaft 9 Bearing 10 Handle 11 Net member 12 Gutter member (Roll support member) )
13 樋 Mounting member 14 Bearing member 15 Bearing member also serving as house pipe reinforcement 16 Reinforcement tape

Claims (3)

Maintains a horizontal shaft with a roll that winds a vinyl sheet or a reel that winds a string member for pulling out a vinyl sheet on the side wall of a bowl-shaped greenhouse structure in which pipe members are arranged at appropriate intervals. A support member of a roll that is attached to the pipe-like structure in a central region of the shaft and winds up the vinyl sheet, and a semi-circular cross-sectional member that receives the vinyl sheet wound up by the roll And a member that holds the flange member from below and is fixed to the pipe member, and a reinforcing tape is attached to a portion of the vinyl sheet that contacts and slides on the pipe member, and the end of the reinforcing tape is The bin is attached to a drawer hook to which a drawer string member is connected at the edge of the sheet House seat opening and closing device. 2. The greenhouse opening and closing device according to claim 1, wherein the semi-circular eaves member has a long shape extending over a plurality of pipe members .   3. The support member for horizontally maintaining the shaft on which the reel for winding the vinyl sheet drawing string member is horizontally formed is a member in which a plurality of holes through which the shaft passes are provided in the shaft length direction. Greenhouse seat opener.

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