JPH0261598B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a heat recovery sash, and more specifically, the present invention relates to a heat recovery sash, and more specifically, a method for easily creating a circulation path for indoor air using a window sash already attached to a building frame. The present invention relates to the structure of a heat recovery sash that can be formed into a heat recovery sash.

<Prior Art> It is already known that a window frame sash of a double-glazed window structure including an outdoor shoji and an indoor shoji is fixedly attached to a frame.

<Problems to be Solved by the Invention> However, in such a sash, the atmosphere of various outside air conditions in summer and winter is directly conducted to the indoor shoji through the outdoor shoji,
There was a problem in that the indoor atmosphere in the vicinity of the indoor shoji screen was greatly influenced by the atmosphere of the various outside air conditions described above, and the indoor environmental conditions deteriorated.

<Means for Solving the Problems> The present invention was developed in view of the above-mentioned circumstances, and uses an existing window frame sash as an outdoor shoji to make an indoor shoji removable from the indoor side. so that a circulation path for indoor air can be easily formed between the two through an existing curtain box, blind box, ceiling inspection port, etc.
This heat recovery sash has a structure that avoids the possibility that various outside air conditions may adversely affect the indoor environment.

<Example> Hereinafter, a preferred example of the present invention shown in the drawings will be described in detail. FIG. 1 is a front view of a heat recovery sash 1 according to the present invention.

As shown in the schematic cross-sectional view of FIG. 2, the heat recovery sash 1 is comprised of a window frame sash 3 placed on the outdoor side of the window opening O and a window frame sash 4 placed on the indoor side. The window frame sash 3 is fixed to the building frame 2 and serves as an outdoor shoji screen, and the window frame sash 4 is attached to an indoor shoji screen via a mounting frame holding bracket 21 attached near the ceiling 18 inside the existing building. It is installed vertically as a.

The window frame sash 4 has a glass shoji 6 fitted into a shoji stile 5 which is constituted by an upper stile 8A, a lower stile 8B, and right and left vertical frames 28, 28.

Furthermore, a mounting piece 9 is integrally extended to the upper stile 8A, and the tip of this mounting piece 9 is bent into an arc shape to form an engagement piece 10. This engagement piece 10 is removably engaged with an engagement recess 12 provided in an indoor shoji mounting frame 13.

Further, a hook-shaped locking piece 15 is integrally provided on the upper side 14 of the indoor shoji mounting frame 13 in the longitudinal direction.

Reference numeral 16 denotes a connection box consisting of an existing curtain box, etc., which connects the upper wall 17 of the window opening 0 and the ceiling 1.
It is installed internally in the corner of 8 in the shape of a box.

In this column, the explanation will be made using an existing curtain box, but the present invention is not necessarily limited to this, and any box-like structure such as a blind box or a ceiling inspection port may be used.

A hole is bored above the connection box 16, and a duct connection flange 19 is fitted into the connection box 16 from below, thereby communicating the inside of the connection box 16 and the exhaust duct 20 via the duct connection flange 19.

At the lower end of the inside surface of the connection box 16 on the indoor side, there is an angled mounting frame holding bracket 2.
Attach the flange 22 of 1.

Further, the tip end side of the wep 23 of the bracket 21 is bent into a channel shape to form a locking piece 24, and this locking piece 24 is engaged with the locking piece 15 provided on the upper side 14 of the indoor shoji mounting frame 13. and further, the flange 25 of the connection box and the indoor shoji mounting frame 1.
A locking piece 26 extending in front of 3 is fixed with a screw.

The engagement piece 10 of the attachment piece 9 extending from the upper stile 8A as described above is removably engaged with the engagement recess 12 of the indoor shoji attachment frame 13.

As a result, the window frame sash 4 becomes the indoor-mounted shoji frame 1.
3, in front of the connection box 16 (on the indoor side)
It will be in a suspended state.

Furthermore, as shown in FIGS. 2 and 3, the window frame sash 4 has its upper part in contact with the ceiling 18 and its lower part hanging down to the vicinity of the lower side 2A of the window opening O, and also has a lower part 8B and the lower side 2A. It is installed with a vent hole 29 communicating with the indoor side formed in between. Also, a pair of vertical side frames 2 are installed along the window opening O on both walls 17 of the building.
7, 27 are attached. The vertical stile 28 of the window frame sash 4 is in close contact with the vertical side frame 27 in the longitudinal direction.

In the above configuration, the existing window frame sash 3 serves as an outdoor shoji, and the newly installed window sash 4 serves as an indoor shoji facing the window frame sash 3. As a result, an air circulation path 30 is formed between the window frame sashes 3 and 4.

The air circulation 30 communicates with the vent 29 at the bottom and the connection box 16 at the top.

Moreover, since the vent 29 is formed between the lower stile 8B and the lower side 2A, it is opened downward to the air circulation path 30, and the air in the indoor side A, especially the warm air, flows from the direction of the solid arrow shown in the figure. It can be naturally introduced, pass through the air circulation path 30 between the indoor shoji 6 and the outdoor shoji 7, and be exhausted to the outdoor side B via the exhaust duct 20. In the summer, the circulating air curtain can be naturally Can be formed.

However, in the above case, the air circulation path 3
0 is filled with indoor air to form an air curtain layer, which blocks the atmosphere of various outside air conditions on the outdoor shoji 7 side from being conducted to the indoor shoji 6 side.
can reliably prevent deterioration of environmental conditions.

In addition, in the case of the window frame sash 1 which is not equipped with the connection box 16 as described above, as shown in FIG. Install the
A flexible exhaust duct 32 is connected to an appropriate surface of this connection box 31 to form the air circulation path 30.
The same function as that described in the previous embodiment can be performed.

Although not shown in detail, these exhaust systems are piped on the back side of the ceiling 18 and are not exposed indoors.

As explained above, the present invention utilizes a connection box to detachably engage a new window frame sash with an existing outdoor shoji, thereby creating air between the indoor shoji and the outdoor shoji. A circulation path is provided and this is connected to the exhaust system, so when an air curtain is required, a new window frame sash can be attached from the indoor side, and when it is not needed, it can be unattached and removed. To easily form and remove an indoor air circulation path without requiring large-scale construction work to replace window frame sashes.

<Effects of the Invention> Therefore, according to the present invention, indoor air can be circulated between the indoor shoji and the outdoor shoji, and an air curtain layer of indoor air can be easily created. The atmosphere under outside air conditions can be more effectively blocked by the curtain layer.

Therefore, there is no possibility that various outside air conditions may pass through the indoor shoji and affect indoor circulation, and by using such a simple means, indoor circulation can always be maintained in a good condition.

[Brief explanation of drawings]

The drawings show a preferred embodiment of the present invention, and FIG. 1 is a front view of the heat recovery sash seen from the indoor shoji side, and FIG. 2 shows the main components of the indoor sash installed on the frame. Fig. 3 is a cross-sectional view of the side frame attached to the wall and the vertical frame in close contact with it, and Fig. 4 shows the state connected to the exhaust duct using another connection box. FIG. In the figure, 3 is the existing window frame, 4 is the new window frame, 16 is the connection box, 20 is the exhaust duct, 27 is the side sill, 28 is the vertical frame of the new window frame, and 30 is the air circulation. 31 is the connection box, 3
2 is a flexible exhaust duct, A is the indoor side, and B is the outdoor side.

Claims (1)

[Claims] 1. Placing a new window frame sash on the indoor side opposite to the existing window frame sash placed on the outdoor side of the window opening,
An air circulation path communicating with the room is formed between both window frame sashes, and a connection box communicating with the exhaust duct is provided at a corner formed by the upper wall of the window opening and the ceiling. Attach the mounting frame for the indoor shoji through the mounting frame holding bracket installed on the indoor side, and engage the mounting piece provided on the upper stile of the new window frame sash into the engagement recess provided in this mounting frame. In addition to being removably engaged, the vertical stile of the new window frame sash is brought into close contact with the vertical side frames installed along both side walls of the window opening to prevent air between the existing window frame sash and the new window frame sash. The structure of a heat recovery sash is characterized by forming a circulation path and communicating the air circulation path with the indoor side through a ventilation path formed by the lower stile of the new window frame sash and the lower side of the window opening.