JP3124479B2 - Sash upper frame ventilation system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation device provided on a sash upper frame.

[0002]

2. Description of the Related Art An upper frame is formed in a hollow shape so that a sash window using a metal or synthetic resin window frame has a ventilation function even in a closed state. A sash comprising shielding means for connecting an outside ventilation hole formed on the outdoor side and an inside ventilation hole formed on the indoor side of the shoji holding portion through a hollow portion of the upper frame to open and close the inside ventilation hole. Upper frame ventilation systems have already been proposed.

[0003] In the ventilating device according to the already proposed, as shown in Figs. 7 to 9, on the outdoor side of the rail 23 holding the upper end portion of the inner shroud Di of the upper frame H formed in a hollow shape, that is, Outer ventilation holes 25o on the outer part of the shoji on the lower surface of the upper frame
In addition, an inner ventilation hole 25i is provided on the indoor side of the rail 22 holding the upper end of the outer sash Do of the upper frame H, that is, on the inner side of the sash on the lower surface of the upper frame H.
As shown by a bold line, after entering the hollow portion 3 of the upper frame from the outer ventilation hole 25o, it flows in the upper frame H in the longitudinal direction, and flows into the room through the inner ventilation hole 25i.

[0004]

Accordingly, since the air flow from the outdoor side to the indoor or the air flow from the indoor to the outdoor is determined by the cross-sectional area of the hollow portion 3 of the upper frame H, the cross-sectional area of the hollow portion is determined. Is small, there is a problem that even if the number of the outer ventilation holes 25o or the inner ventilation holes 25i is increased, efficient ventilation is not performed. The present invention has been made in view of the above point, and is not restricted by the cross-sectional area of the upper frame, a sufficient ventilation is secured, and an effective and reliable ventilation effect is obtained. The purpose of the present invention is to provide a ventilation device.

[0005]

Means for Solving the Problems] To achieve the above object, the ventilation apparatus of the upper frame according to the present invention, the outer ventilation openings to the outside portion than the outer sliding door holding part of the lower surface of the upper frame having a hollow portion
And the shoji holding portion on the lower surface of the upper frame.
Forming an inner ventilation hole on the indoor side than the outer ventilation
The hole and the inner ventilation hole through the hollow portion of the upper frame.
It is characterized in that it is communicated in a direction perpendicular to the longitudinal direction of the frame .

[0006]

Next, an embodiment of the present invention will be described. 1 is a horizontal sectional view of the upper frame, and FIG.
FIG. 3 is a sectional view taken along line BB of FIG. 1. As shown in FIGS. 1 to 3, the upper frame H has a hollow portion 3 and the inside is formed in a hollow shape. The outer portion of the outer sash Do in the closed position on the lower surface of the upper frame H, that is, the outer sash D
o, the outside ventilation holes 2
4 is formed, and an inner ventilation hole 25 is formed in an inner portion of the outer sash Do which is present at the closed position of the lower surface of the upper frame H, that is, on the indoor side with respect to the rail 22 holding the outer sash Do. The outer ventilation hole 24 and the inner ventilation hole 25 communicate with each other in the hollow portion 3 of the upper frame in a direction perpendicular to the longitudinal direction of the upper frame. Therefore, the amount of air flowing from the outer ventilation hole 24 to the inner ventilation hole 25 or the reverse direction is smaller than that of the hollow portion 3.
Is not limited by the cross-sectional area perpendicular to the longitudinal direction.

[0007] The outer ventilation hole 24 is provided with a shoji sliding door Do holding portion (2).
Since it is provided on the outdoor side of 2), the holding portion (23) of the inner sash (Do) is deformed, and a glass plate or a wall panel is fitted at that position instead of the inner sash, and the outer sash (Do) is made a single sliding door. Can also. In this way, even when a single sliding door is used, efficient ventilation can be performed with the sliding door closed.

[0008] It is desirable that the outer ventilation hole is provided not only in the outer part of the outer sash (24) but also in the outer part (24e) of the inner sash. Thereby, even if the opening area per one outer ventilation hole is reduced, a sufficient amount of ventilation can be obtained in the entire ventilation hole. In addition, reducing the opening area per unit prevents the mechanical strength of the upper frame from being lowered by forming a large number of ventilation holes on the lower surface of the upper frame, and also alleviates the pressure such as outdoor gusts. After entering the upper frame, the suction of rainwater and the like into the upper frame due to the pressure difference between the inside and outside is suppressed.

As shown in FIGS. 2 and 3, the upper frame H may be formed integrally. However, when the ventilation function of the upper frame is not used, it is desired to shield the inside ventilation hole 25. As shown in FIG. 4, in order to facilitate the installation of the shielding means for the inner ventilation holes and to prevent the attached shielding means from being exposed to the indoor side, as shown in FIG.
1 and rail 2 for holding outer sash Do and inner sash Di
After the inner member 2 integrally having the inner members 2 and 23 is formed separately from the outer member 1 and the shielding means is attached to the upper surface of the inner member, the inner member 2 is integrally connected to the outer member 1. It is desirable.

[0010]

Next, an embodiment of the present invention will be described with reference to FIGS. 4 is a vertical sectional view of the upper frame, FIG. 5 is a bottom view of the upper frame, and FIG. 6 is a sectional view taken along line CC of FIG. The upper frame H is assembled in a hollow shape by connecting the individually formed outer member 1 and inner member 2. The outer member 1 is
An upper wall 11, an outer wall 12 facing the outdoors, and an inner wall 13 facing the indoor are integrally formed, and are formed in a U-shape with a downward opening. Screw holes 14 and 15 for connecting the outer member 1 to the vertical frame J with screws are provided on the upper surface of the upper surface wall 11, the inner surfaces of the outer wall 12 and the inner wall 13, respectively.
The inner member 2 integrally includes a lower surface wall 21, a rail 22 for holding a sash, and a rail 23 for holding an inner sash, which protrude downward from an intermediate portion of the lower surface of the lower surface. The inner member 2 has one end in the width direction of the lower surface wall 21 and one of the outer wall 12 and the inner wall 13 of the outer member 1 (an outer wall in the illustrated example).
Locking edge 1 formed on the ridge formed by the screw hole 15 of FIG.
5a, screw s which is locked to the other end of lower surface wall 21
Into the screw hole 15 in the other of the outer wall 12 and the inner wall 13 of the outer member 1 (in the illustrated example, the inner wall).
It is possible to assemble the upper frame H integrally connected to the outer member 1 and having the hollow portion 3 therein.

An outer ventilation hole 24 is formed in a portion of the lower surface wall 21 of the inner member 2 outside the outer sliding door holding rail 22 at least at a position corresponding to the outer sliding door Do existing at the closed position. is there. An insect repellent net N is provided on the upper surface of the lower surface wall 21 for preventing invasion of small insects from the outer ventilation hole 24. The insect repellent net N is made of a punched metal in which small holes are formed by punching a thin metal plate in order to facilitate attachment to the inner member 2. In the example shown in FIG. 4, at the position on the indoor side of the lower-side wall 21 that is closer to the indoor side than the rail 22 for holding the sash, the rail 22 for holding the sash is set in the example shown in FIG. An inner ventilation hole 25 is provided between the inner rail and the inner sash holding rail 23.

In this manner, the upper frame H passes through the hollow portion 3 of the upper frame in a direction perpendicular to the longitudinal direction of the upper frame from the outer ventilation hole 24 that opens to the lower surface of the upper frame on the outdoor side of the sash Do. Shoji D
o Inside ventilation hole 2 opening again on the lower surface of upper frame H on the indoor side of o
5 are formed. The outer ventilation hole 24, the hollow portion 3, and the inner ventilation hole 25 are the basic components of the ventilation device of the upper frame. However, if the ventilation holes inside and outside are always open, the ventilation is not required. It is inconvenient. An opening / closing means operable from the indoor side is provided so that at least the inside ventilation hole 25 can be shielded when ventilation is not desired.

The opening / closing means will be described below.
A pair of ridges 16 are formed on the lower surface of the upper wall 11 of the outer member 1 so as to oppose each other at positions spaced inward and outward, and symmetrical guide blocks 4 are fitted to the respective ridges 16. Have been. At least two guide blocks 4 are attached to each ridge 16 at a distance in the longitudinal direction of the upper frame. Each of the guide blocks 4 has a guide path 41 that inclines in the same direction along the longitudinal direction of the upper frame. And, in the guide path 41 of each guide block 4,
A guide (a horizontal shaft fixed to the shielding plate and a roller provided at the tip thereof) rotatably coupled to both ends in the width direction of the shielding plate 5 extending in the longitudinal direction of the upper frame H in the inner portion of the outer sash Do. Etc.) 51 are slidably fitted to each other. Airtight members 52 are fixed to the lower surfaces of both ends in the width direction of the shielding plate.

On the other hand, an opening / closing operation member 6 is slidably supported in the longitudinal direction of the upper frame H at an intermediate portion of the lower surface wall 21 of the inner member 2, that is, at a portion between the two rails 22 and 23. When the inner member 2 is connected to the outer member 1, an engagement portion 61 protruding upward from the upper surface of the opening / closing operation member 6 is formed in the central portion of the lower surface wall 21 by the elongated hole 21 a and the shielding plate 5. It is gently inserted into the engaging hole 5a formed in the center.

In this manner, when the opening / closing operation member 6 is gripped from below the upper frame H and is moved in one direction (direction in which the guide path 41 of the guide block 4 is inclined upward) along the longitudinal direction of the upper frame, The shielding plate 5 is raised and the lower surface wall 21 of the inner member 2 is
When the opening / closing operation member 6 is moved in the other direction (the direction in which the guide path of the guide block is inclined downward) L, the shielding plate 5 is lowered and the airtight member 52 is moved away from the inner ventilation hole 25. The inner ventilation hole 25 is completely shielded so as to be in close contact with the upper surface of the lower wall 21.

With the above configuration, when the shield plate 5 is moved to the open position via the opening / closing operation member 6 in the window closed state, the inside and outside ventilation holes 24 and 25 are opened, so that the outside air W is supplied to the outside ventilation holes 24. The air will flow into the room through the inner ventilation hole 25 through the hollow portion 3 of the upper frame H. At this time, since the outside air flows through the hollow portion of the upper frame in a direction perpendicular to the longitudinal direction, the ventilation amount is It is not limited by the cross-sectional area perpendicular to the longitudinal direction of the upper frame as in the related art, but is determined by the total area of the outer ventilation holes 24 and the inner ventilation holes 25. It is easy to increase the total area of the outer ventilation holes 24 and the inner ventilation holes 25 in the upper frame of the sash window frame, and can be arbitrarily increased as the opening width of the window increases. Therefore, the ventilation device according to the present invention can exhibit a sufficient ventilation effect even in a window having a large opening width.

As shown in FIGS. 1 and 3, when the outer ventilation hole 24e is formed in the outer portion of the inner sash as in the prior art, the outside air entering the upper frame H from the outer ventilation hole 24e. The WA flows through the hollow portion 3 of the upper frame toward the inner ventilation hole 25 in the longitudinal direction of the upper frame, and the outer ventilation hole 2 in the outer portion of the sash has been removed.
Since it merges with the outside air W that has entered from 4 and flows into the room through the inner ventilation holes 25, the ventilation effect is further promoted. Further, when the outer ventilation holes 24, 24e are formed in the outer portion of the outer trouser and the outer portion of the inner trouser, the total area of the entire outer ventilation hole may be equal to the total area of the inner ventilation hole. Since the area per unit can be reduced, the effect of reducing the pressure of the air entering from the outer ventilation holes can be obtained, and therefore, the advantage that the blowing into the upper frame of the strong wind and the infiltration of rainwater can be effectively prevented. There is.

[0018]

As described above, according to the present invention, the outdoor
The air flow in the indoor direction from the outer sash holding part on the lower surface of the upper frame
Also flows from the outside ventilation hole formed in the outdoor part into the upper frame in the direction perpendicular to the longitudinal direction of the upper frame, and the obstacle on the lower surface of the upper frame
Since the lower flow from inside the ventilation hole formed in the interior portion than the child holding unit in a room, the first, since the airflow amount is not limited by perpendicular cross-sectional area in the longitudinal direction of the upper frame, very effective Ventilation can be performed. The same effect is obtained with respect to the airflow from the room to the outside. Second, in the unlikely event of a vent
Suddenly when you go out without shielding, the upper and lower
Even if the air is blown into the hollow part of the
Open downward on the indoor side of the sliding door holder.
Therefore, the rainwater cannot be sprayed directly into the room.
No. Therefore, wetting folds, carpets, etc.
Effectively prevented.

Further, when the outer ventilation holes are formed on the outdoor portion of the outer sash and the outer portion of the inner sash, the opening area per outer ventilation hole can be reduced.
Along with preventing a decrease in mechanical strength of the upper frame, a decompression effect such as a gust is obtained in the outer ventilation hole,
Further, it is possible to prevent rainwater from being sucked in based on the indoor / outdoor pressure difference.

[Brief description of the drawings]

FIG. 1 is a horizontal sectional view of an upper frame schematically showing a configuration of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a longitudinal sectional view of an embodiment of the present invention.

FIG. 5 is a bottom view of the upper frame of the embodiment.

FIG. 6 is a sectional view taken along line CC of FIG. 5;

FIG. 7 is a horizontal sectional view corresponding to FIG. 1 and showing a configuration of a conventional upper frame ventilation device.

FIG. 8 is a sectional view taken along line DD of FIG. 7;

FIG. 9 is a sectional view taken along line EE of FIG. 7;

[Explanation of symbols]

 H Upper frame 1 Outer member 2 Inner member 3 Hollow portion Do Outer sliding door Di Inner sliding door 22 Outer sliding door holding rail 23 Inner sliding door holding rail 24 Outer ventilation hole 25 Inner ventilation hole 24e Outer ventilation hole 4, 5, 6 Shielding means 4 Guide block 41 Guideway 5 Shield plate 6 Opening / closing operation member

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F24F 7/00 E06B 7/10

Claims (2)

(57) [Claims] 1. A sash holding portion on a lower surface of an upper frame having a hollow portion.
Outer ventilation holes on the outdoor side than
Inside the lower part of the upper frame on the indoor side than the shoji holding part
Forming a ventilation hole, the outer ventilation hole and the inner ventilation hole
One perpendicular to the longitudinal direction of the upper frame through the hollow portion of the upper frame
A ventilator for the upper frame of the sash, characterized in that it communicates in the same direction . 2. The ventilation device for an upper frame of a sash according to claim 1, wherein the outer ventilation holes are formed on the outdoor side of the outer sash holder and the outer side of the inner sash holder.