JPH057868U - Ventilation window opening / closing device for membrane structure - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to an opening / closing device for a ventilation window of a membrane structure in which an outer wall is kept in a predetermined shape by an internal pressure in the building. The structure is simple and inexpensive, and the ventilation window is It is to provide a structure of a ventilation window that can be opened and closed quickly from the outside of the house by a simple operation even when installed in a high place. [Structure] A door sheet 5 having one side 6 attached to the inner surface of the non-breathable membrane structure 3 is provided so as to cover the ventilation window 4, and the first operation string 9 and the second operation are provided at opposite ends of the attachment side 6. The first operation string 9 is connected to the string 10, and the first operation string 9 is pulled out to the outside through the outer wall 1 at the attachment side 6 side of the ventilation window 4, and the second operation string 10 is provided at the non-adhesion end 7 side of the ventilation window 4. It penetrates the outer wall 1 and is pulled out to the outside.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an opening / closing device for a ventilation window of a membrane-structured building in which the outer wall is maintained in a predetermined shape by the internal pressure in the building.

[0002]

[Prior Art]

 A net structure that acts as a tension-bearing member is provided on the outside, and an air-impermeable membrane structure that acts as a shielding member is placed on the inside, and the outer wall has a predetermined shape by inflating the membrane structure by internal pressure and making it adhere to the net structure The membrane-structured building, which is maintained in the above, is used as a greenhouse or a greenhouse for plant cultivation or as a temporary simple building for an event.

In such a building, a ventilation window is generally formed by cutting a part of a membrane structure forming an outer wall into a predetermined size to form an opening, and a vinyl greenhouse for cultivation is generally used. In such cases, in order to maintain the desired temperature inside the room, it is necessary to open and close the ventilation window frequently in relation to the presence or absence of sunlight and the outside temperature.

In a conventional greenhouse, etc., the ventilation window is closed by preparing a door sheet having a size that covers the ventilation window, and installing the door sheet inside the ventilation window to form a net structure by internal pressure. The ventilation windows are closed by closely contacting each other. The conventional door sheet is completely separate from the membrane structure that forms the outer wall.When closing the ventilation window, the operator manually puts the door sheet on the inside of the ventilation window. They were working to push it apart and close the ventilation window.

[0005]

[Problems to be solved by the device]

 In order to perform the above work, the worker must enter the greenhouse to perform the work, and normally such a ventilation window has a small area in order to make the temperature inside the house uniform. Since it is usual to provide a large number of workers, it is considerably troublesome for an operator to move to each position of a large number of ventilation windows to close the ventilation windows in the house, and it takes a lot of time. I needed it.

[0006] In particular, in a greenhouse, it is not possible to secure sufficient space for workers to walk in order to effectively use the site within the greenhouse, and when the weather changes, these works must be performed promptly. Since it has to be done repeatedly and repeatedly, there has been a problem that the temperature inside the house cannot be properly controlled due to lack of manpower.

Further, in the case of such an opening / closing operation, there is a problem in that the ventilation window cannot be provided at a high place, and therefore the hot air in the upper part of the house stays without being ventilated. Also, especially in the summer, there is a problem that the work load is large because the work must be performed in a hot house.

The present invention has been made to solve the above problems, has an extremely simple structure and is inexpensive, and can open and close a ventilation window from the outside of a house quickly by a simple operation. The challenge is to provide the means that can.

[0009]

[Means for Solving the Problems]

 In the switchgear of this invention, the outer wall 1 is formed by the mesh structure 2 and the non-breathable membrane structure 3 inside thereof, and the ventilation provided on the outer wall 1 of the membrane structure building which maintains a predetermined shape by the internal pressure. It is used for the window 4.

In this invention, a door sheet 5 sized to cover the ventilation window 4 is provided by adhering one side 6 to the inner surface of the non-breathable membrane structure 3, and the first side is provided at the opposite end of the adhering side 6. The operation string 9 and the second operation string 10 are connected to each other, the first operation string 9 is pulled out to the outside through the outer wall 1 on the side where the ventilation window 4 is attached, and the second operation string 10 is connected to the ventilation window 4. On the side opposite to the sticking end 7, the outer wall 1 is penetrated and pulled out to the outside.

The door sheet 5 is preferably a quadrangle or a triangle. When the door sheet 5 is a quadrangle, the rod 8 is fixed to the side 7 opposite to the sticking side 6, and the first operation string is attached to both ends of the rod 8. 9 and the second operation string 10 are connected. In addition, when the shape is an isosceles triangle, the bottom side is the sticking side 6, the apex is downward, and the first operation string 9 and the second operation string 10 are connected to the apex.

The operation strings 9 and 10 that have been pulled out are hung so that the drawer end 11 is located at a position where the operator can easily operate, and the handle 12 having an appropriate shape is fixed to the drawer end 11 for work. Will be easier.

[0013]

[Action]

 The ventilation window 4 provided with the opening / closing mechanism having the above-described structure is opened / closed by alternately operating the two first operation strings 9 and the second operation strings 10 that are pulled out to the outside. That is, when trying to open the ventilation window 4, the first operation string 9 is pulled. By this operation, the lower end of the door sheet 5 moves to the attachment side 6 side, the door sheet 5 is folded in two, and the ventilation window 4 is opened. On the other hand, when closing the ventilation window 4, the second operation string 10 is pulled. As a result, the lower end of the lifted door sheet 5 moves to the opposite side of the sticking side 6, and the door sheet 5 covers the ventilation window 4 with the door sheet 5 extended inside the non-breathable membrane structure 3, As a result, the door sheet 5 is brought into close contact with the mesh structure 2 in the ventilation window 4, and the ventilation window 4 is completely closed. If the operation is stopped when the lower end of the door sheet 5 is moved to the intermediate position by pulling the first operation string 9, the ventilation window 4 can be opened at an appropriate opening.

[0014]

【Example】

 Next, an embodiment shown in the drawings will be described. The outer wall of the greenhouse is a net structure 2 that is composed of a group of cords 21 ... The film structure 3 formed of a sheet. The outer wall 1 is provided so as to cover the rectangular land on which the crop is cultivated, and swells due to the internal pressure applied by a blower fan (not shown) to form a membranous structure having a transparent outer wall in the shape of a kamaboko.

The ventilation window 4 is formed by cutting a part of the non-breathable membrane structure 3 into a rectangular shape, a circular shape, or any other shape. The ventilation window 4 is provided with a door sheet 5 whose upper side is attached to the inside of the non-breathable membrane structure 3 above the ventilation window 4 in a state of being hung from the attachment side 6. A thin rod 8 is attached to the side of the door sheet 5 facing the sticking side 6, and a first operation string 9 and a second operation string 10 are bound to both ends of the rod 8.

Then, the first operation string 9 is guided upward from both ends of the rod 8, and penetrates the non-permeable membrane structure 3 and the net structure 2 at a position sufficiently higher than the upper side of the ventilation window 4 to externally. The second operation string 10 is pulled out to the outside through the membrane structure 3 and the net structure 2 at a position below the position where the rod 8 hangs down. The position where the first operation string 9 is pulled out to the outside is determined by adding the distance from the sticking side 6 to the upper side 22 of the ventilation window to the length of the door sheet It is made larger than the vertical length of the gutter 5. In this way, when the rod 8 is pulled up to the pull-out position 23, the entire opening of the ventilation window 4 is opened.

The pull-out position 23 of the first operation string 9 is located directly above the intersection point 24 between the cords 21, 21 of the net structure 2, and the first operation string 9 that is drawn out to the outside and hangs down from the net structure. The structure is held by the intersection points 24 of the body 2. At the pull-out ends 11 of the first operation cord 9 and the second operation cord 10, short cut pipes are bound to form a handle 12. By pushing the handle 12 between the net structure 2 and the membrane structure 3, the predetermined pull-out positions of the operation strings 9 and 10 can be fixed.

If necessary, eyelets or the like are provided at the penetrating portions of the membrane structure 3 at the pull-out positions 23 and 25 of the operation strings 9 and 10, and a V-shaped reinforcing resin member is provided at the intersection point 24 of the net structure 2. It is preferable that the pull-out portion is prevented from being damaged by the repeated operation of the operation cords 9 and 10 by attaching a reinforcement member or a reinforcing metal fitting. With such a structure, the operation cords 9 and 10 can be operated smoothly. You will be able to do it.

In the above structure, when the first operation cord 9 is pulled from the ventilation window closed state shown in FIG. 1, the rod 8 connected to the first operation cord 9 moves upward, and the door sheet 5 has two door sheets 5 as shown in FIG. Since it is bent and pulled up, the ventilation window 4 is opened. When the ventilation window 4 is open, pulling the second operation string 10 lowers the rod 8, and the door sheet 5, which has been folded in two, is expanded downward, and the inside pressure causes the outside of the ventilation window 4 to fall. It is pressed against the mesh structure 2 located at, which closes the ventilation window 4.

At this time, since one side 6 of the door sheet 5 is adhered to the membrane structure 3 and the rod 8 is provided on the side 7 opposite thereto, the door sheet 5 is spread inside the ventilation window 4 in a rectangular shape. It can be expanded and the ventilation window 4 can be closed securely. As another structure that can surely extend the door sheet 5, one side of the triangle is used as a sticking side, and the first and second operation strings are connected to the apex facing the side. be able to.

[0021]

[Effect of the device]

 According to the structure of the present invention described above, the ventilation window provided in the membrane structure building can be opened and closed by one operation from the outside, and even when the ventilation window is at a high position that is out of reach of the worker. By hanging the operating cord to an appropriate height, the ventilation window can be opened and closed with one action without any hindrance. Therefore, in a greenhouse, etc., the ventilation windows can be opened and closed from the outside of the house, which makes it easy for the worker to move, reduces the work load, and enables the opening and closing of many ventilation windows in a short time. There is an effect.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a side view of the embodiment of the present invention.

FIG. 3 is an explanatory diagram showing an opening / closing operation.

[Explanation of symbols]

 1 Outer wall 2 Net structure 3 Non-breathable membrane structure 4 Ventilation window 5 Door sheet 6 Adhesion edge 7 Anti-adhesion end 8 Rod 9 First operation string 10 Second operation string

Claims (1)

[Claims for utility model registration] [Claim 1] Outer wall that maintains a predetermined shape by internal pressure
The outer wall (1) is formed by the outer mesh structure (2) and the inner non-permeable membrane structure (3), and the outer wall (1) is provided in the non-permeable membrane structure (3). In a device for opening and closing a ventilation window of a membrane structure where a ventilation window (4) is formed by providing an opening of a size, a door sheet (5) sized to cover the ventilation window (4) from the inside is a non-permeable membrane structure. One side (6) is attached to the inner surface of the body (3), and the first operation string (6) extending toward the attaching side (6) is provided at the opposite end (7) of the attaching side (6). 9) and the second operation string (10) extending in the opposite direction are connected, and the first operation string (9) penetrates the outer wall (1) on the side of the attachment side (6) of the ventilation window (4). And then pulled out to the outside, the second operation string (10) is a ventilation window.
An opening / closing device for a ventilation window of a membrane structure building, which is characterized in that it extends through the outer wall (1) on the side opposite to the sticking end (7) of (4) and is pulled out to the outside.