JPS6344542Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a heat insulating screen device that increases the heat insulation effect by being attached to entrances, windows, etc. of buildings.

Generally, the glass used in shoji screens installed at entrances and windows of buildings allows sunlight and thermal energy to pass through easily, which causes a significant drop in the efficiency of air conditioning and heating in summer and winter.

Therefore, in order to improve insulation, for example,
As described in Publication No. 54-32046, a roll blind equipped with a sheet made of non-breathable material is installed in the window opening of a house, and an air insulation layer is formed between the window glass and the sheet. A double window forming device has been proposed, but in order to improve the airtightness of the sheet, band-shaped springs made of a magnetic material are attached to both sides of the sheet, and a roll blind is installed in the conventional double window forming device. A belt-shaped magnet is attached to the side shielding member attached to the storage box, and the belt-shaped spring is attracted to the belt-shaped magnet, which has the disadvantage that the structure for maintaining airtightness becomes complicated.

The present invention was developed in view of these problems, and consists of a frame consisting of left and right vertical frames and upper and lower horizontal frames, which is installed on the inside of the shoji at the opening of the building. A winding shaft in the vertical direction is rotatably supported on the winding shaft, and a screen with curling curls is freely unwound onto the winding shaft, and the screen is moved along guide grooves provided in the upper and lower horizontal frames at the tip of the screen. The invention is characterized in that airtightness is maintained between the screen and the guide groove by attaching a freely movable stile and sliding the screen in sliding contact with the groove wall of the guide groove due to the curl in the extended state. It is something.

Hereinafter, the case where the embodiment of the present invention is applied to a window will be explained in detail with reference to the drawings.
In the drawings to FIG. 3, reference numeral 1 denotes a window opening, and shoji 2a, 2b having a sliding structure with glass 3 are attached to the shoji 2a, 2b.
A heat insulating screen device 4 is disposed inside b.

The screen device 4 includes a frame 5 made of synthetic resin, consisting of left and right vertical frames 6, 7 and upper and lower horizontal frames 8, 9.
A winding shaft 11 in a vertical direction is rotatably supported in a winding chamber 10 provided in one vertical frame 6, and a screen 12 with curling curls is attached to the winding shaft 11.
The screen 1
2 through the opening 13 and the upper and lower horizontal frames 8, 9.
guided along guide grooves 14 and 15 provided in the
A movable stile 16 is attached to the tip of the stile, with its upper and lower ends fitting into the guide grooves 14 and 15, and elastically engaged with an engaging portion 16a provided on the stile 16 on the inner surface of the other vertical frame 7. A locking piece 17 is provided to form a heat insulating space 18 between the screen 12 and the shoji 2a, 2b when the screen 12 is closed.

The screen 12 is made of a material that partially reflects or absorbs sunlight and has a relatively small heat transfer coefficient, such as a polyester film colored in an appropriate color such as milky white, or a transparent or colored polyester film coated with aluminum or the like on the surface. It is made of a material on which a metal thin film is vapor-deposited, and it is heat-treated while being wound to give it a curl, and its own curl allows it to be wound without using the force of a spring or the like. The frame 16 is attached to the frame 16 by adhering it to the frame body 16b using a double-sided adhesive member 19 made of sponge, and screwing the presser frame 16c onto the frame body 16b. When the screen 12 is unwound, its upper and lower ends are connected to the guide groove 1 by utilizing the property that it tends to curve in the winding direction due to the curl.
The groove walls 14a and 15a on one side of the guide grooves 4 and 15 are brought into sliding contact with each other, and in this state they are opened and closed along the guide groove. Therefore, it is possible to easily maintain airtightness with the frame 5 and to improve heat insulation.

In the illustrated embodiment, the screen 12 is in sliding contact with the groove walls 14a and 15a on the indoor side, but
By reversing the winding direction, it can be brought into sliding contact with the groove walls 14b, 15b on the outdoor side, and the selection can be made arbitrarily depending on the building, insulation conditions, etc. When using a screen with a metal thin film, it is desirable that this metal thin film faces the indoor side.

Further, near the opening 13 of the vertical frame 6, a brush 20 that comes into sliding contact with the screen 12 is vertically installed in a protruding state, thereby preventing the screen 12 from coming into contact with the edge of the opening 13 and damaging it. In addition to preventing dust from being exposed, it also removes dust from the screen surface.
Furthermore, it is possible to prevent a gap from forming between the screen 12 and the edge of the opening. In this case, brush 2
It is desirable to use a material that does not generate static electricity due to sliding contact with the screen 12.

In addition, 16d in the figure is a recess provided in the stile 16 for opening and closing operations.

In the screen device having the above configuration, the frame 16 is connected to the guide groove 1 in order to close the screen 12.
If you move it to the left in Figure 2 along lines 4 and 15,
The screen 12 is unrolled one after another from the winding chamber 10, but at this time, the screen 12 tends to curve in the winding direction due to the winding tendency, so that its upper and lower ends abut against the groove walls 14a, 15a of the guide grooves 14, 15, and the groove It can be moved while sliding against the wall. This also applies when the screen 12 is opened. Therefore, not only can the opening and closing operations of the screen 12 be performed very easily and smoothly, but also the airtightness between the screen 12 and the frame 5 can be reliably maintained when the screen 12 is closed. When the screen 12 is closed, most of the sunlight and thermal energy that has passed through the glass 3 from outside the room is reflected or absorbed by the screen 12, and direct transmission into the room is suppressed. Similarly, thermal energy from the indoor side is also blocked by the screen 12, and its transmission to the outdoors is suppressed. Moreover, since a heat insulating space 18 is formed between the screen 12 and the glass 3, even if there is a large temperature difference between indoors and outdoors, this heat insulating space prevents heat transfer, and the heat insulating effect is significantly improved.

When the screen 12 is not in use, winding can be performed by simply moving the stile 16 toward the winding side and using the winding tendency of the screen itself. In this case, the screen 12 may be held at an arbitrary intermediate open position by taking into consideration the winding force of the screen 12 or by utilizing friction between the stile 16 and the guide grooves 14 and 15.

According to the present invention having the above configuration, a heat insulating screen device is provided on the inside of the shoji at the opening of the building, so that sunlight and thermal energy passing through the shoji from the outside can be directly transmitted into the room, and from the inside to the outside. Not only can it reliably prevent thermal energy from passing through, but the insulating space between the screen and the shoji can also prevent heat transfer between indoors and outdoors, which significantly improves the insulation effect. can be done.

In addition, since the screen is wound up by its own winding tendency, there is no need for any driving force such as a spring, so the structure for winding is very simple. Utilizing the tendency of the screen to curve in the winding direction due to the curl, the upper and lower ends of the screen are brought into sliding contact with the groove walls of the guide groove, so the configuration is very simple, simply by creating a curl in the screen. This not only allows the screen to move very stably along the guide groove, but also prevents the formation of gaps between the screen and the frame, significantly improving airtightness and heat insulation. In particular, as mentioned above, airtightness can be maintained simply by bringing the screen into direct contact with the groove wall, so there is no need to install special means for maintaining airtightness. It has some characteristics.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing an embodiment of the present invention, Fig. 2 is a sectional view taken along line A-A with the middle part omitted, and Fig. 3 is a cross-sectional view taken along line B-B with the shoji omitted. It is. 4... Screen device, 5... Frame, 6, 7...
... Vertical frame, 8, 9... Horizontal frame, 11... Winding shaft, 12...
... Screen, 14, 15 ... Guide groove, 14
a, 15a...Gutter wall, 16...Stile.

Claims (1)

[Scope of utility model registration request] A frame consisting of left and right vertical frames and upper and lower horizontal frames is provided inside the shoji at the opening of the building, and a vertical winding shaft is rotatably supported in one of the vertical frames to prevent curling. The attached screen is wound around the winding shaft so that it can be freely paid out, and a stile that can be moved freely along the guide grooves provided in the upper and lower horizontal frames is attached to the tip of the screen, and when the screen is in the unwound state, the above-mentioned winding tendency is fixed. A heat insulating screen device for a building, characterized in that airtightness is maintained between the screen and the guide groove by slidingly contacting the groove wall of the guide groove.