JPH09105268A - Ventilation window - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation window having a large numerical aperture exceeding 50% and capable of being simply and automatically opened and closed. SOLUTION: Vent holes 12, 13 are provided at the upper and lower positions dividing a window frame 11 into three, the vent holes 12, 13 are set to the full open state when sliding window doors 15, 16 are moved to a window door storage section 14 at the center of the window frame 11, and a large numerical aperture at about 2/3 of the window frame area is realized. A pulley 21 is provided at the upper section of the window frame 11, and the upper and lower window doors 15, 16 are connected and suspended by the rigging 23. The upper and lower window doors 15, 16 are made nearly equal in weight, the rigging 29 is fitted to the lower window door 16, and it is fixed to a winding device 30 wound by coil springs 34 made of a shape memory alloy. A weight 43 is fitted to the lower window door 16 to keep balance with the coil springs 34.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a ventilation window.

[0002]

2. Description of the Related Art Conventionally, as a ventilation window of a greenhouse or a vinyl house, as shown in FIG. 3, it is composed of two windows 101 and 102 at the top and bottom, and one of them is moved so as to overlap with the other so that the ventilation port 103 is fully opened. It is known that In this case, in addition to the one with a fixed window as shown,
Some have sliding windows.

[0003]

In such a conventional ventilation window, the aperture ratio with respect to the window frame area can be only 50% at maximum, and it is desired to further increase the aperture ratio. In addition, many of the conventional ventilation windows are manually opened and closed, which is troublesome. Even if an actuator is used to solve this problem, a large motor or the like is required to open and close the sliding window door against the weight of the sliding window door, which requires a large investment in equipment.

[0004] Therefore, the present invention is 50% in the ventilation window.
A first object is to achieve a large aperture ratio exceeding the above, a second object is to easily open and close, and a third object is to enable automatic opening and closing.

[0005]

Means for Solving the Problems, Embodiments of the Invention and Effects of the Invention In order to achieve the first object, the ventilation window of the present invention is provided with ventilation holes at both end positions that divide the window frame into three parts. , A sliding type window door is arranged so as to cover each ventilation port, and each ventilation port can be fully opened by moving each sliding type window door to the closed part in the center of the window frame. did. If the two sliding windows at both ends are moved to the position of the central closing part, both of the two ventilation openings will be fully opened, and an opening ratio of about 2/3 of the window frame area can be obtained. it can.

As a result, if the window frame has the same size as the conventional one, the ventilation capacity is improved, and the size of the window frame can be reduced in order to exhibit the same ventilation capacity as the conventional one.
The window frame may be provided with ventilation holes on the left and right, but in order to achieve the second purpose in addition to the first purpose, in this ventilation window, the ventilation It is preferable that the window frame is arranged so that the mouth is on the upper and lower sides, a pulley is provided on the upper portion of the window frame, and the upper and lower slide type window doors are connected to each other by the rigging applied to the pulley so as to be suspended.
Further, the upper and lower sliding windows may have substantially the same weight. Further, it is preferable that the rigging is further attached to the lower sliding window and the rigging is connected to the actuator so that the lower sliding window can be pulled up by the actuator.

[0007] The upper and lower sliding type window doors are connected by rigging,
Since it is hung from the front and back through the pulleys, if one sliding window is raised / lowered, the other will also be lowered / raised accordingly. Further, when the upper and lower sliding windows are balanced in load, the force required to raise / lower the sliding windows is sufficient if the balance can be broken, and is extremely small. Achieved by force.

Therefore, opening and closing becomes easy. Also, when driven by an actuator, a very small actuator (for example, a small motor for a model) may be used, or one small actuator can simultaneously open and close the upper and lower sliding type window doors, reducing capital investment. can do. Furthermore, since it can be opened and closed with a small force, it is possible to simultaneously open and close a large number of ventilation windows with one actuator, and in this respect too, there is a great effect of reducing capital investment costs.

In addition, since the vent holes can be provided on the upper and lower sides, it is considered that when the ventilation window is vertically long, it has an effect of assisting air convection in a greenhouse or the like. further,
In order to achieve the third object as well, in the above-described ventilation window, the actuator may be a hoisting device for rigging that is driven by a shape memory alloy spring having a predetermined recovery temperature. In this case, a balance weight is further attached to the lower sliding window so that when the temperature falls below the recovery temperature, the shape memory alloy is overcome and the lower sliding window automatically opens. It is better to lower it.

For example, if a spring made of a shape memory alloy is stored so that it contracts when the temperature exceeds a predetermined recovery temperature, and a ventilation window that winds the rigging by this spring is installed in a greenhouse, etc. When the temperature rises above the recovery temperature, the ventilation window is automatically opened to introduce outside air, and the temperature rise inside the greenhouse can be suppressed. When the balance weights are arranged as described above, when the temperature inside the greenhouse falls below the recovery temperature, the spring force of the shape memory alloy is overcome and the lower sliding window is lowered. . Along with this, the upper sliding window is raised, and both the upper and lower vents can be closed to prevent the warm air in the greenhouse from leaking out.

For greenhouses and greenhouses, in these ventilation windows, it is preferable that the sliding window doors and the central closed portion of the window frame are transparent or translucent. This is because in a greenhouse or the like, it is desirable for the growth of plants to make the door pocket part in the center of the window frame transparent or semi-transparent so that the sunlight can always enter through the ventilation window.

The ventilation window of the present invention is particularly suitable as a ventilation window for controlling the temperature of a greenhouse for cultivation, a greenhouse, a livestock house or the like.

[0013]

EXAMPLES Next, one example of the embodiments of the present invention will be described in order to further clarify the present invention. The ventilation window of the embodiment is attached to the wall surface of a vinyl greenhouse for agriculture.

The ventilation window 10 is, as shown in FIG. 1, a window frame 1
An upper ventilation hole 12 and a lower ventilation hole 13 are provided so as to divide 1 into three parts up and down. As shown in FIG. 1 (B), the remaining center portion, which is divided into three parts, is a door pocket-shaped window door storage portion 14 whose front and back surfaces are made of transparent acrylic resin plates. Sliding window doors 15 and 16 in which a plate made of an acrylic resin is fitted in a frame are arranged in the upper and lower vent holes 11 and 12 so as to cover them. Windows 15 and 16
Are supported by left and right door rollers 17 and door roller rails 18 of the window frame 11 so as to be vertically slidable.

Two pulleys 2 are provided above the window frame 11.
1 and 22 are provided. A rigging 23 having upper and lower window doors 15 and 16 connected to both ends is attached to one pulley 21. The windows 15 and 16 have the same size and the same weight. As a result, the window doors 15 and 16 are suspended by the pulley 21 in a load-balanced state. Therefore, both windows can be easily raised / lowered by applying a slight force to one of the windows.

Side walls 25 and 26 on the upper and lower portions of the window frame 11
And the upper and lower side walls 27 and 28 of the window storage unit 14, respectively, are the window doors 15 and 1 suspended from the pulley 21 as described above.
It also serves as the upper and lower stoppers for 6. And, in particular, the horizontal boards 25, 26, 27 are composed of two square members, and a gap for passing the rigging 23 is formed therebetween.

The other pulley 22 has a lower window 16
Another rigging 29 connected to is hung. The other end of the cord 29 is connected to the hoisting device 30. The hoisting device 30 includes a pulley 31 for changing the direction of the rig 29, a multistage pulley 32 for speeding up the rig 29, and a pulley 3 having the smallest diameter of the multistage pulley 32.
The coil spring 34 made of a shape memory alloy is fixed to the lower end side of the cord 33 hung on the 2a.

As the shape memory alloy, a type that recovers at a predetermined temperature or higher is used. And the lower window 16
The rigging 42 having the weight receiver 41 is fixed to the lower end of the
A weight 43 is mounted as a balance weight. The weight 43 is pulled up when the temperature rises above the recovery temperature of the shape memory alloy and the shape of the spring recovers, and conversely, when the temperature falls below the recovery temperature, the weight 43 overcomes the coil spring 34 and can stretch the coil spring 34. Is so balanced.

With the above structure, the ventilation window 10 according to the present embodiment.
Operates as follows. First, when the temperature inside the vinyl house is low, as shown in FIG. 2, the weight 43 overcomes the coil spring 34 and pulls down the window 16. As a result, the upper window 15 connected by the rigging 23 is pulled up, and the upper and lower ventilation openings 12, 13 are closed.

When the temperature inside the vinyl house rises above the recovery temperature during the day when the vent holes 12 and 13 are closed in this way, the coil spring 34 causes the weight 43 to move.
, And the multi-stage pulley 32 is rotated in the winding direction as shown in FIG. As a result, the lower window 16
Moves up to the point where it touches the horizontal tab 27, and accordingly lowers to the point where the upper window 15 touches the lower horizontal tab 28 of the window storage part 14. Thus, the upper and lower vents 1
2 and 13 are in the fully open state, about 2/3 of the window frame area
And an extremely high aperture ratio can be realized.

In this way, the temperature inside the vinyl house is kept at a desired temperature while preventing it from rising too much, and when the temperature falls near the nightfall, as shown in FIG. 2, the weight 43 again has a coil spring. It is in a state of defeating 34. In this way, the ventilation window 10 of the present embodiment can automatically open and close the ventilation holes 12 and 13 according to the temperature change of one day, and can automatically keep the inside of the vinyl house within a desired temperature range. And, as described above, the two windows 15, 16
Are balanced in weight, so that the conditions for automatic opening and closing can be easily set only by the balance between the weight of the weight 43 and the coil spring 34.

In order to improve the airtightness when the ventilation port is closed, sponge or other packing may be applied so that a gap is not opened between the side wall and the window. Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and it goes without saying that the present invention can be realized in various modes without departing from the scope of the invention.

For example, the hoisting device may be composed of a small motor, a temperature sensor and a microcomputer. Also, if it is sufficient to secure a large aperture ratio,
You may arrange | position a window frame so that a ventilation port may open at right and left.
Of course, the application is not limited to the greenhouse for agriculture and the like, and may be adopted as a ventilation window not only in livestock houses but also in houses.

[Brief description of the drawings]

FIG. 1 shows an open state of a ventilation window according to an embodiment, (A)
Is a rear view and (B) is a sectional view.

FIG. 2 shows a closed state of the ventilation window of the embodiment, (A)
Is a rear view and (B) is a sectional view.

FIG. 3 shows a conventional ventilation window, (A) and (C) are front views, and (B) and (D) are sectional views.

[Explanation of symbols]

10 ... Ventilation window, 11 ... Window frame, 12, 13 ...
Vent, 14 ... Window storage, 15, 16 ... Window, 17 ... Door car, 18 ... Door rail, 21, 21
2 ... pulley, 23, 29 ... cordage, 25-28 ...
・ Yokotan, 30 ... Winding device, 31 ... Pulley, 3
2 ... Multi-stage pulley, 33 ... Rigging, 34 ... Coil spring, 41 ... Weight receiver, 42 ... Rigging, 43 ...
..Weights

Claims (7)

[Claims] 1. A ventilation hole is provided at each end position that divides the window frame into three parts, and a sliding window door is arranged so as to cover each ventilation hole, and each sliding window door is closed at the center of the window frame. A ventilation window, characterized in that each of the ventilation ports can be brought into a fully opened state by moving the ventilation window. 2. The ventilation window according to claim 1, wherein the window frame is arranged such that the ventilation holes are vertically arranged, a pulley is provided on an upper portion of the window frame, and the upper and lower sliding type is provided by a cord rigged on the pulley. A ventilation window characterized by connecting and suspending window doors. 3. The ventilation window according to claim 2, wherein the upper and lower sliding type window doors have substantially the same weight. 4. The ventilation window according to claim 2, wherein a rigging is further attached to the lower sliding window, and the rigging is connected to an actuator, and the lower sliding type is connected by the actuator. A ventilation window characterized by being able to pull up the window door of. 5. The ventilation window according to claim 4, wherein the actuator is a rigging device for rigging which is driven by a shape memory alloy spring having a predetermined recovery temperature. 6. The ventilation window according to claim 5, wherein a balance weight is attached to the lower sliding window door,
A ventilation window, characterized in that the lower sliding type window door is automatically lowered by overcoming the spring at a temperature lower than the recovery temperature of the shape memory alloy. 7. The ventilation window according to any one of claims 1 to 6, characterized in that the sliding window door and the closing portion at the center of the window frame are transparent or translucent. Ventilation windows.