JPH0116878Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a drainage device in the lower frame of an aluminum sash into which a sliding shoji is fitted.

The conventional sash bottom frame was formed to have a lower height in order from the inner wall, inner rail, outer rail, and outer wall to ensure smooth drainage.
Not only does the shoji easily come off outwards, causing a sense of anxiety even if measures are taken to prevent it from coming off, but the structure is unsuitable for windows in high-rise buildings because it cannot be fitted inward, and the height of the shoji varies. Therefore, there was a problem that it did not fit in with modern architectural structures such as curtain walls.

Therefore, the purpose of this invention is to ensure good drainage even when the inner and outer walls of the sash bottom frame and the inner and outer rails are at approximately the same height.

Next, an example of this invention in which a window is provided in a curtain wall will be explained.

The sash window W is composed of left and right vertical frames 1, 2 and upper and lower frames 3, F, and inside and outside shoji 4, 5.
is fitted in a sliding way. The lower frame F is composed of a lower frame main body 6, a partition block 7 fitted into the middle part thereof, an auxiliary member 8 attached between the block 7 and one of the vertical frames 1, and an attachment member 10 for the transparent panel 9.

Among them, the lower frame main body 6 has inner and outer rails 13 and 14 between inner and outer walls 11 and 12, and both side walls 11 and 1.
2 and both rails 13 and 14 are both at the same height. Further, the upper end 11a of the inner wall 11 and the inner rail 13 are provided to protrude from the upper end of the hollow body 15, which is stable in strength, and a slope wall 16 that slopes forward low is formed below the inner rail 13, and at the lower end thereof. A stepped portion 17 is provided.

Further, a groove bottom wall 18 is provided protruding from the front surface of the stepped portion 17, and the outer wall 12 stands up from the front end of the groove bottom wall 18. and an outer rail 1 near the top end of the outer wall 12.
The outer rail 14 is supported by the groove bottom wall 19 between the four grooves.

In this way, between the upper end 11a of the inner wall 11 and the inner rail 13, and the upper end 1 of the outer wall 12,
2a and the outer rail 14 are each provided with a shallow groove 2.
0 and 21, but a drain groove 22 is opened between the inner and outer rails 13 and 14 with the width thereof, and the drain groove 22 passes under the front shallow groove 21 and reaches the outer wall 12.

Further, a groove 23 for hooking the rear end of the auxiliary member 8 is provided at the upper end of the slope wall 16, and the groove 23 is formed into an inverted T-shape with a wide inner part. A protrusion 24 for hooking the front end of the protrusion 8 is provided, and the protrusion 24 is formed into an L-shaped cross section with the tip facing forward.

Further, in the lower frame main body 6 having such a cross-sectional shape, drainage holes 25 and 26 are provided in the groove bottom wall 19 of the front shallow groove 21 and the outer wall 12, respectively. Note that it is desirable that both drainage holes 25 and 26 be opened at different positions.

Next, the connecting block 7 has an upper end that serves as a windshield plate 27 that prevents wind and rain from entering through the connecting portion of the inner and outer shoji 4 and 5, and a protruding portion 28 that fits deeply into the drain groove 22 below. A through hole 30 for the screw 29 is formed in the protrusion 28.

The auxiliary member 8 has a wind barrier 32 vertically disposed at the front end of the cover plate 31, seals the upper end of the drain groove 22 of the cover plate 31, and seals the space between the protrusion 24 and the stepped portion 17 with the wind barrier 32. ing. In addition, a stepped portion 33 is provided at the center of the width of the lid plate 31 low toward the front, a screw pocket 34 is formed on the back side of the stepped portion 33, and a hook portion 35 that fits into the groove 23 of the lower frame main body 6 is provided at the rear end. A hooking part 36 is formed at the front end to hang on the protrusion 24, and a fitting groove 38 for the seal member 37 is provided at the lower end of the windshield wall 32.
7 is always connected to the stepped portion 17.
Therefore, the drain groove 22 on the side of the outer shoji 5 with the block 7 as a boundary is sealed with a cover plate 31, and has a hollow chamber 39 below it, and a drain hole to the hollow chamber 39 is provided in the lower part of the cover plate 31. 40 are provided. Further, the auxiliary member 8 is connected to the vertical frame 1 by a screw 41 that is screwed into the screw pocket 34.

In the sash constructed as described above, when wind and rain blow on the shoji 4, 5, rainwater flows down to the lower frame F along the front surface of the shoji 4, 5. Rainwater falling from the inner shoji 4 mainly flows into the drainage groove 22 and is drained to the outside through the drainage hole 26 of the outer wall 12. Further, rainwater flowing down from the outer surface of the outer shoji 5 flows into the front shallow groove 21, passes through the drainage holes 25 and 26, and is discharged to the outside, or flows out over the upper end of the outer wall 12. However, since the height of the outer wall 12 is approximately the same as the outer rail 14, rainwater also enters the inside of the outer shoji 5 beyond the outer rail 14. This rainwater then enters the hollow chamber 39 through the drainage hole 40 of the cover plate 31, and if the amount is large, it will temporarily collect therebelow and gradually seep out from between the sealing member 37 and the stepped portion 17 and be discharged to the outside through the drainage hole 26. Ru.

Furthermore, when rainwater intrudes beyond the outer rail 14, the outside air pressure may change to be more negative than the air pressure inside the hollow chamber 39 because it is a time of strong wind and rain. If there is such a difference in height between the inside and outside air pressure,
The windshield wall 32 swings outward, albeit slightly,
Since the entire auxiliary member 8 is drawn outward, the sealing effect of the seal member 37 is reduced, or the seal member 37 is separated from the stepped portion 17, so that a large amount of rainwater in the hollow chamber 39 is discharged. The fourth example shows the extreme deformation of the windshield wall 32 at that time, and when there is heavy wind and rain, the indoor and outdoor air pressure changes alternately and repeatedly, so drainage is extremely good.

On the other hand, even if wind and rain blow in from the drainage groove 26 of the outer wall 12, in this case the outside pressure is higher than the pressure inside the hollow chamber 39, so the windstop wall 32 is pushed backward and the sealing member 37 is pressed against the stepped portion 17, so there is no risk of wind and rain blowing into the hollow chamber 39 from between. Therefore, it is possible to prevent droplets from being generated in the hollow chamber 39 due to intense foaming, and even if droplets are generated due to an unexpected situation, since there is a cover plate 31 above, the droplets will not be scattered inside the room. In order to more reliably prevent this scattering, a drain hole 40 is formed in the lower part of the cover plate 31.

With this design, the inner and outer walls and the inner and outer rails between them are formed at almost the same height in the sash bottom frame, so the sliding shoji can be fitted stably to the window frame with good appearance, and it is easy to fit inside. be.

However, even though the inner and outer walls and the inner and outer rails between them are at approximately the same height, rainwater that falls along the front of the inner shoji flows into the drainage ditch that opens between the inner and outer rails and is drained to the outside. There is no risk of rainwater stagnating on the bottom frame or entering the back side of the inner shoji screen over the rail.

Also, even if some of the rainwater that has flowed down along the front side of the outer shoji enters the back side of the shoji by crossing the rails, it will be drained to the outside through the drainage groove, and this drainage groove will open into the room than the outer shoji. Even if the lower frame is closed, the rainwater on the lower frame can be drained and disposed of very well because the auxiliary members and sealing members prevent wind and rain from blowing in and the generation of splashes.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, in which Fig. 1 is a cross-sectional view of a sash window frame, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a cross-sectional view taken along the line B-B in Fig. 1. Figure 4 is a cross-sectional view showing how rainwater is drained due to changes in atmospheric pressure, Figure 5 is a perspective view showing the structure of the lower frame cut away, and Figure 6 is a diagram showing the partition block and auxiliary members. FIG. 3 is an exploded perspective view showing the connection structure of FIG. F...Bottom frame, 4...Inner shoji, 5...Outer shoji, 6
... Bottom frame body, 7 ... Partition block, 8 ... Auxiliary member, 11 ... Inner wall, 12 ... Outer wall, 13
...Inner rail, 14...Outer rail, 17...Step, 18...Gutter bottom wall, 22...Drainage ditch, 31...
Lid plate, 32...Windstop wall, 37...Seal member, 3
9...Hollow chamber.

Claims (1)

[Scope of utility model registration request] In a sash bottom frame in which the inner and outer walls and the inner and outer rails between them are formed at approximately the same height, the main body of the lower frame forms a drainage groove between the inner and outer rails that reaches the outer wall, and falls onto the groove bottom wall in the middle. It is made of an extruded shape with a stepped section, and a partition block that doubles as a windshield plate that divides the drain into left and right sections is fitted into the middle part of the lower frame body, and a partition block is fitted in the middle of the bottom frame body, which also serves as a windshield plate to divide the drain into left and right parts. An auxiliary member is fitted between the partition block and the vertical frame, and the auxiliary member has a windstop wall that hangs down near the bottom wall of the groove at the front end of the cover plate that seals the upper end of the drain. A drainage device in which a sealing member is attached to the lower end of the stop wall to be joined to the step, a drainage hole is provided above the sealing member on the cover plate, and a drainage hole on the groove bottom wall is provided in the outer wall.