JP2986395B2 - 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 ventilators 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
Further, an inner ventilation hole 25i is provided on the indoor side of the rail 22 that holds 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]

Therefore, the air flow rate from the outdoor to the indoor or the air flow from the indoor to the outdoor is determined by the upper frame H
Is determined by the cross-sectional area of the hollow portion 3, when the cross-sectional area of the hollow portion 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. there were. The present invention has been made in view of the above points, and is not restricted by the cross-sectional area of the hollow portion of the upper frame, a sufficient ventilation rate is secured, and an effective and reliable ventilation effect is obtained. It is an object to provide a ventilation device for a sash upper frame.

[0005]

In order to achieve the above object, a ventilating device for an upper frame according to the present invention comprises: (a) a U-shaped outer member (1) having a lower opening; ), And an inner member integrally having an outer sash holder (22) and an inner sash holder (23) projecting downward from an intermediate portion of the lower surface of the lower surface wall.
(2) are fitted together and integrally joined to form an upper frame (H) having a hollow portion (3); (b) the lower surface wall (21) of the inner member (2) An outer ventilation hole (24) is located on the outdoor side of the outer sash holder (22), and an inner ventilation hole (25) is located on the indoor side of the inner sash holder (23). ) Is formed over substantially the entire length of the inner member.
The outer sash holder (22) and inner sash holder (2) on the lower wall (21) of (2)
3) The knob provided between (4) and the knob
An opening and closing device having a closing member (6) for opening and closing the inner ventilation hole (25) in conjunction with the movement of the upper frame (H) in the longitudinal direction along (21). , Is characterized.

According to the above construction, the lower surface wall of the inner member (2)
The outer ventilation hole (24) is located above the outer sliding door holder (22) and the inner ventilation hole (25) is located above the inner sliding door holder (23). Since it is formed over substantially the entire length of the frame (H), the ventilation volume of the ventilator is not limited by the cross-sectional area of the hollow portion of the upper frame, but is increased according to the area of the inside or outside ventilation hole. In addition, since the air flows between the inside and outside of the approaching ventilation holes with low airflow resistance, noise generation is suppressed. Further, since the ventilation hole is provided in the inner member separate from the outer member, the processing is easy and the production efficiency is improved. The knob (4) of the switchgear is used for the outer sash holder (22) and inner sash holder.
(23), so the inside ventilation holes
Even if (25) is opened, the ventilation holes opened in the entire length of the upper frame can be effectively used.

[0007]

Next, an embodiment of the present invention will be described. 1 is a bottom view of the upper frame provided with the ventilation device of the present invention, FIG. 2 is a sectional view taken along line XX of FIG. 1 in a state in which the ventilation hole is closed, and FIG. It is sectional drawing. As shown in FIGS. 2 and 3, the upper frame H is
And the inside is formed in a hollow shape. The outer part of the shoji screen Do present at the closed position on the lower surface of the upper frame H, that is, on the outdoor side with respect to the rail 22 holding the shoji screen Do,
An outer ventilation hole 24 is formed in the upper frame H.
An inner ventilation hole 25 is formed in the upper frame H at an inner portion of the inner shroud Di present at the closed position of the lower surface of the inner frame, that is, on the indoor side with respect to the rail 23 holding the inner shroud Di. The inside ventilation hole 25 communicates with the inside of 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 in the opposite direction is not limited by the cross-sectional area of the hollow portion 3 perpendicular to the longitudinal direction.

In the present invention, the sash window is not limited to the sliding window as described above. Since the outer ventilation hole 24 is provided on the outdoor side of the outer sash holder (22), the inner sash holder (23) is deformed, and a glass plate or a wall panel is fitted and killed at that position instead of the inner sash. A single sliding window that opens and closes only the outer door Do may be used. As described above, even in the case of a single sliding window, since the ventilation holes 24 and 25 are provided in the entire length of the upper frame, efficient ventilation can be performed with the window closed.

The outer ventilation hole 24 and the inner ventilation hole 25 are formed over the entire length of the upper frame H. Since it is formed over the entire length, even if the opening area per one ventilation hole is reduced, a sufficient amount of ventilation can be obtained in the entire ventilation hole.
In addition, by reducing the opening area per unit, the mechanical strength of the upper frame is prevented from lowering, and after the pressure such as outdoor gusts is reduced, the upper frame enters the upper frame.
Suction into the upper frame such as rainwater based on the inside / outside pressure difference is suppressed.

When the ventilator of the upper frame is not used, it is desired to shield the outer ventilation holes 24 or the inner ventilation holes 25. As shown in FIGS. 2 and 3, the opening and closing device is provided with a lower surface wall 21 of the upper frame to prevent the installed opening and closing device from being exposed to the indoor side. The inner member 2 integrally having the rails 22 and 23 holding the sash Do and the inner sash Di is replaced with the outer member 1.
, And after the opening and closing device is attached to the inner member 2, the inner member 2 is integrally connected to the outer member 1.

[0011]

Next, an embodiment of the present invention will be described with reference to FIGS. The upper frame H is assembled by connecting the individually formed outer member 1 and inner member 2 and has a hollow portion 3. The outer member 1 is integrally formed with an upper wall 11, an outer wall 12 facing outdoors, and an inner wall 13 facing indoors, and is formed in a U-shape with a downward opening. The upper surface of the upper surface wall 11 is provided with a screw hole 14 for connecting the outer member 1 to the vertical frame J with a screw. The inner member 2 includes a lower wall 21, a rail 22 for holding a shoji and a rail 2 for holding a shoji, which protrude downward from an intermediate portion of the lower surface of the lower wall.
3 are integrally provided. The inner member 2 locks one end of the lower surface wall 21 in the width direction with a locking edge 15 formed at a symmetrical position between the outer surface wall 12 and the inner surface wall 13 of the outer member 1, and the hollow of the vertical frame J. A screw is screwed into a connection block (not shown) fixed to the surface facing the portion 3 from the lower surface of the lower surface wall 21, thereby being integrally connected to the outer member 1.

As shown in FIG. 1, an outer ventilation hole 24 is formed in a portion of the lower surface wall 21 of the inner member 2 on the outdoor side of the rail 22 for holding the sash, as shown in FIG. As shown in FIG. 5, an insect repelling net N for preventing invasion of small insects from the outer ventilation holes 24 is provided on the upper surface of the lower wall 21. The insect net N is made of a metal sheet P as shown in FIG.
Many small holes h are formed by punching
As shown in (b), it is preferable to use a frame f in which a net n made of synthetic resin fibers is welded. Further, an inner ventilation hole 25 is provided in a portion of the lower surface wall 21 closer to the indoor side than the rail 23 for holding the inner sash, over substantially the entire length of the upper frame.

In this manner, the upper frame H has an outer ventilation hole 24 which opens on the lower surface substantially on the entire length of the upper frame H on the outdoor side of the outer sliding door Do, and a lower surface on almost the entire length of the upper frame H on the indoor side of the inner sliding door Di. And the inner ventilation hole 25 that opens into the hollow portion 3 of the upper frame
Thereby, an air passage communicating with a direction perpendicular to the longitudinal direction of the upper frame is formed. The inner member 1 is formed symmetrically with respect to the center line in the width direction, and the outer ventilation holes 24 and the inner ventilation holes 25 are also formed in the same size at positions symmetric with respect to the center line in the width direction of the inner member. I have. Therefore, the inner member 2
There is an advantage that the connection position between the inside and outside is not limited in the width direction, and the assembling of the upper frame H is easy.

Before the inner member 2 is connected to the outer member 1, an opening and closing device for opening and closing the inner ventilation hole 25 is mounted in the hollow portion 3.

Hereinafter, the switching device will be described.
The opening and closing device is, as best shown in FIG.
, An interlocking member 5, a shielding member 6, and a guide member 7. The knob 4 is fitted from above into a long hole 26 formed in the lower surface wall 21 of the inner member 2 at the center portion of the lower surface wall on the indoor side of the shoji door Do, and is not dropped by the flange 41 in the longitudinal direction. Slidably held at Then, the upper frame H is pinched with a fingertip from below the indoor side, and the instruction stickers 27a and 27b attached near the knob (FIG. 1).
) Can be moved in the "open" or "closed" direction.

A portion 42 of the knob 4 projecting upward from the lower surface wall 21 is fitted and fixed in a hole 51 of the interlocking member 5. The interlocking member 5 has a fitting portion 52 extending in a direction in which the inner ventilation hole 25 of the inner member 2 is formed. The shielding member 6 has a substantially H-shaped cross section, and a sealing material 63 such as rubber is fixed to lower ends of the inner and outer vertical walls 61 and 62. And in the longitudinal middle part of the shielding member 6,
A vertical hole 64 into which the fitting portion 52 of the interlocking member 5 is fitted so as to be able to move up and down.
Are formed. In addition, guide pins 6 protruding inward and outward are provided at least at two locations in the longitudinal direction of the closing member 6.
5 are provided.

The guide member 7 includes a pair of block-shaped guide members 7a and 7b corresponding to the inner and outer projecting ends of the guide pin 65.
As shown in FIG. 6, each of the guide pins 65
Is provided at a position corresponding to. Guide member 7 for each pair
In a and 7b, inclined grooves 71 which are inclined upward in the same direction are formed on surfaces facing each other. The inclined groove 71 has a horizontal portion 71a at the upper end.

The structure for attaching the guide member 7 to the upper frame is not particularly limited. In the illustrated example, the inner guide member 7a
Abuts against the inner surface of the inner wall 13 of the outer member 1 and is fixed by screws or the like penetrating the inner wall. The inner wall 3 and the outer wall 12 of the outer member 1
A protruding edge 16 is provided at an intermediate symmetric position between the two, and the protruding edge supports the lower end of the inner guide member 7a. The outer guide member 7b fits the protruding edge 17 formed on the lower surface of the upper surface wall 11 of the outer member 1 into the groove 72 formed on the upper portion, and
1 is fixed by a screw or the like penetrating therethrough. When the knob 4 is placed in the “closed” position, as shown in FIG.
It is attached to the position existing at the lower end of the.

With the above configuration, when the knob 4 is in the "closed" position, as shown in FIG. 2 and as shown by the solid line in FIG. The inner ventilation holes 25 are hermetically sealed because the sealing material 63 is held in position and the sealing material 63 is in close contact with the upper surface of the lower surface wall 21 on the inner and outer sides of the inner ventilation holes 25. Therefore, in this ventilator, there is no ventilation flow between the inside and outside through the hollow portion of the upper frame.

On the other hand, when the knob 4 is moved to the "open" position, the interlocking member 5 moves the blocking member 6 in the same direction, so that the guide pin 65 is guided by the inclined groove 71 of the guide member 7. As a result, as shown by the chain line in FIG. 6, the closing member 6 rises obliquely. When the knob 4 is moved to the limit, the guide pin 65 reaches the horizontal portion 71a of the inclined groove 71 and stops. As the closing member 6 is raised, the sealing material 63 is separated from the lower surface wall 21 to open the inner ventilation hole 25. Accordingly, the outside air W flows into the room through the upper frame H as shown by the thick line in FIG. That is, a ventilation flow is generated between indoor and outdoor.

In the case where the ventilation holes 25 are opened and closed by the horizontal movement of the shielding member 6, it is necessary to separate the ventilation holes 25 from each other by at least the length of the ventilation holes 25. In the example, as described above, the horizontal movement of the knob 4 is converted into the elevating movement of the closing member 6 via the inclined groove of the guide member 7 to open and close the ventilation hole 25. Since the ventilation holes 25 are opened and closed by raising and lowering the closing member 6, the distance between the ventilation holes 25 can be made smaller than the length of the ventilation holes, as is well shown in FIG. Therefore, when the width of the inner ventilation hole 25 formed on the indoor side of the inner sash holder 23 cannot be made large, the configuration of the opening and closing device described above is extremely effective.

Moreover, the outer ventilation hole 24 and the inner ventilation hole 2
5 is formed over substantially the entire length of the upper frame H, as shown in FIG.
Even if the opening areas of the individual elements 5 are small, it is possible to secure a sufficient ventilation volume. In addition, since the mechanical strength of the upper frame is also ensured, the concern that the strength of the upper frame is reduced with the provision of the ventilation device in the upper frame as in the related art is eliminated.

Further, in the illustrated example, the total area of the outer ventilation holes 24 and the total area of the inner ventilation holes 25 are equal, and the inner and outer ventilation holes are in straight communication. Airflow that enters and exits indoors through inner ventilation holes,
Or, the airflow in the opposite direction becomes laminar, and there is little possibility of generating turbulence or vortex in the upper frame, especially in the case of a conventional upper frame ventilation device when an outdoor strong wind blows against the window. It is possible to effectively prevent the noise caused by the whistling phenomenon which is often experienced in the art.

Further, since the inner and outer ventilation holes are formed over substantially the entire length of the upper frame, even if the opening area per one ventilation hole is reduced, a sufficient ventilation is ensured and the upper frame is formed. Does not cause a decrease in mechanical strength. Furthermore, by making the installation positions of the inside and outside ventilation holes correspond to each other and making the total area equal, the airflow in the upper frame is made laminar, so that generation of noise during ventilation can be further prevented.

Further, in the case where an opening / closing device is provided for moving the knob along the lower surface of the upper frame in the longitudinal direction of the upper frame to raise and lower the shielding member to open and close the inner ventilation hole, a narrow area of the upper frame is provided. With this, a large opening area can be secured and ventilation efficiency can be increased.

[0026]

As described above, according to the present invention, the outer ventilation holes are provided on the outdoor side of the outer sash holder, and the inner ventilation holes are provided on the indoor side of the inner sash holder. Since it is formed over substantially the entire length, the ventilation volume of the ventilation device is not limited by the cross-sectional area of the hollow portion of the upper frame, but is increased according to the area of the inside or outside ventilation hole. In addition, since the ventilation flow from the outdoors to the indoor direction or the reverse direction flows in the direction perpendicular to the longitudinal direction of the upper frame, the ventilation resistance is small. Therefore, significantly higher efficiency of ventilation can be achieved as compared with the conventional device.

Since the position of the operation unit of the opening / closing device is provided between the outer sash holder and the inner sash holder, even if the inner ventilation hole is opened in a narrow area, the ventilation provided in the entire length of the upper frame. The holes can work effectively.

[Brief description of the drawings]

FIG. 1 is a bottom view of an upper frame provided with a ventilation device of the present invention.

FIG. 2 is a sectional view taken along line XX of FIG. 1 in a state where the opening and closing device is closed.

FIG. 3 is a cross-sectional view in an open state.

FIG. 4 is a perspective view showing two types of insect repellent nets.

FIG. 5 is an exploded perspective view of the opening / closing device.

FIG. 6 is an explanatory diagram showing the operation of the switching device.

FIG. 7 is a horizontal sectional view of the upper frame showing an installation position of a ventilation hole and an air flow in the 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 4 Pick 5 Interlocking member 6 Blocking member 7 Guide member 71 Inclined groove 72 Horizontal part

Claims (1)

(57) [Claims] 1. An outer member formed in a U-shape with a lower opening.
(1) a lower wall (21), and an outer sash holder (22) and an inner sash holder (23) projecting downward from an intermediate portion of the lower surface of the lower wall;
And an inner member (2) integrally having a hollow (3) to form an upper frame (H) having a hollow portion (3), and a lower surface wall (21) of the inner member (2). The outer sash holder (22)
An outer ventilation hole (24) is formed on the outdoor side, and an inner ventilation hole (25) is formed on the indoor side of the inner sliding door holding portion (23) over substantially the entire length of the upper frame (H). A knob (4) provided between the outer sash holder (22) and the inner sash holder (23) of the lower wall (21) of the inner member (2); and And a closing member (6) that opens and closes the inner ventilation hole (25) in conjunction with the movement of the upper frame (H) in the longitudinal direction along the upper frame (H). Sash upper frame ventilator.