JPS627950Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a ventilation system in which ventilation holes in a partition wall can be opened and closed by wing bodies that can swing approximately symmetrically, thereby preventing the interior of the room from being seen through from the outside, especially at night. .

Conventionally, in a ventilation system in which a ventilation hole provided in a partition wall inside a frame body is opened and closed by a wing body, for example, as shown in FIG. Therefore, when the room is bright, such as at night, the room can be seen through the ventilation hole c, which is not preferable from a security perspective.Moreover, the swinging length e of the wing body a becomes large, and the frame body b It also had the disadvantage of being too wide.

The present invention aims to provide a ventilation system that is equipped with blades that can swing between substantially symmetrical positions and that can solve the above-mentioned problems.One embodiment of the invention will be described below with reference to the drawings.

In the drawings, the ventilation device 1 of the present invention has vents 4, 4 provided through an upper cut wall 3 inside a frame 2, which can be opened and closed by means of wings 5, 5. The frame 2 has a front edge which is bent in an L-shape in cross section to form a periphery 7 which abuts against the wall W of the building, and a front cover 11 having multiple slits 10 can be fitted to the periphery 7. The partition wall 3 has inclined pieces 15 on the top and bottom of a vertical central horizontal piece 12, the outer ends of which are inclined so as to face away from the attachment side of the wing 5, and the rectangular vents 4 are provided in the inclined pieces 15. The wing 5
The horizontal piece 12 is pivotally mounted at the upper and lower ends of a protrusion 16 formed on the front surface of the horizontal piece 12, and two seals 17, 17 are attached to the partition wall 3 side so as to abut against the inclined piece 15 and be able to abut airtightly around the periphery of the air hole 4. A spring receiver 20, which tensions a spring 19, is attached to the approximately central portion of the side edge of the wing body 5.
The blade body 5 is in contact with the inclined piece 15 via the seal 17, so that the inclined piece 15
At this time, the spring 19 biases the wings 5, 5 in a direction in which the opening angle becomes smaller,
The wing body 5 is brought into close contact with the inclined piece 15.
A boss portion having a blind hole 22 is protruding from the rear surface of the handle 2, and the blind hole 22 is fitted with a gripping piece 2 made of a rectangular ring.
The guide shaft 24 protruding from the center of the hole 23 is guided in the hole 23. The gripping piece 23 and the wing body 5 are connected via connecting rods 26, 26 each having bendable ends. The connecting rods 26 are arranged so that the guide shaft 24 is inserted into the blind hole 23.
When the blade 5 comes into contact with the inner end of the valve 2, the blade 5 is pressed and swung so that the blade 5 can be inclined at an opening inclination angle β which is approximately equal to and symmetrical to the closing inclination angle α.

However, as illustrated in FIG. 2, the ventilation system 1 of the present invention has a
Position 1 outward and install. When ventilating the room in summer, etc., press the grip piece 23 and release the connecting piece 26.
By moving the wing body 5 to its closing inclination angle β through Since β is approximately equal, the wing body 5 prevents the interior from being seen through from the outside. Note that even at the open tilt angle β position, the spring 19 pulls the blade body 5 to prevent it from flapping due to wind or the like. In addition, the gripping piece 23 is pulled, and the wing body 5 is swung through the connecting rod 26, so that it comes into contact with the inclined piece 15 through the seal 17 as described above, thereby blocking the ventilation hole 4, preventing ventilation, and improving the indoor insulation effect. enhance Also, the wing body 5 has a closing inclination angle α
As a result of rotating the frame body 2 only between the opening angle β and the horizontal center axis of the frame body 2, the moving distance can be reduced, and the width dimension of the frame body 2 can be reduced.

As described above, the ventilation system of the present invention can open and close the ventilation holes in the partition wall using the wing body that swings between the closing angle and the opening angle that is approximately equal and symmetrical to the closing angle. It is possible to improve the security function by preventing the person from seeing through the ventilation system, and it also has excellent effects such as being able to significantly reduce the width of the frame body compared to the conventional ventilation system shown in FIG. In addition, in the ventilation system of the present invention, by using a heat insulating material or pasting a heat insulating material on the wing body, the indoor insulation effect can be improved in the closed state. so that it can be opened and closed by a single wing body attached to it,
The partition wall can be modified in various ways, such as forming the partition wall into a flat plate shape inclined in one direction.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a perspective view showing an example of its use, and FIG. 3 is a sectional view showing a conventional device. 2...frame body, 3...partition wall, 4...ventilation hole,
5... Wing body, α... Closing inclination angle, β... Opening inclination angle.

Claims (1)

[Scope of utility model registration request] In a ventilation system in which a ventilation hole provided in a partition wall in a frame body is opened and closed by a wing body, the partition wall is inclined so that its outer end faces opposite to the side where the wing body is attached, and the wing body is attached to the partition wall. A ventilation device that can swing between a closed tilt angle that abuts and an open tilt angle that is substantially equal to and symmetrical to the closed tilt angle.