JPH0415907Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a watertight device for preventing rainwater from entering through the lower frame of a revolving window, a projecting window, a sliding window, etc.

In revolving windows, it is common to have drainage holes in the lower frame of the window to allow rainwater that has entered between the window frame and the shoji to escape outside. Rainwater may enter through this drain hole, and in order to prevent this rainwater from splashing, conventionally a flat baffle plate has been attached above the drain hole.

Most of the causes of rainwater intrusion are due to pressure differences. That is, since the external pressure is high and the internal pressure between the window frame and the shoji is small, rainwater enters from outside due to the pressure difference.

Therefore, by introducing a predetermined amount of outside air between the window frame and the shoji screen and making the pressure equal to the outside pressure, it is possible to prevent rainwater from entering due to the pressure difference. However, in the past, the outside air that entered through the drain hole hit the baffle plate and flowed left and right, and entered between the window frame and the shoji from the left and right openings, so the amount of outside air introduced was small, and the space between the window frame and the shoji was The problem was that the pressure could not be equalized, and rainwater could enter due to the pressure difference.

This invention has a structure that introduces a large amount of outside air into the window frame, instantly creating an equal pressure space and preventing rainwater from entering due to the pressure difference. is formed, and a first opening that opens to the outside air is bored in the bottom of this groove, and
A second opening is located at the same position with a predetermined distance from the first opening.
A piece-shaped baffle plate having an opening formed in the first
It is characterized by being placed above the opening.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings, taking a rotating window as an example.

FIG. 1 is a front view of a revolving window, in which a glass 4 is fitted into a shoji 5 consisting of left and right vertical frames 1, 1, an upper stile 2, and a lower stile 3, and this shoji 5 is attached to an upper frame 6 and a lower frame 7. It is rotatably mounted within a window frame 9 composed of vertical frames 8, 8. This rotation is for vertical stile 1 of shoji 5,
Horizontal pivots 10, 10 are protruded in the middle of 1,
The pivots 10, 10 are supported by the vertical frames 8, 8 of the window frame 9 and are designed to rotate around the pivots. Here, the shoji in this embodiment is
As shown in FIG. 2, it is composed of an outdoor shoji 11 on the outside and an inner shoji 12 on the indoor side.
A blind 13 is disposed between the outer shoji 12 and 11 and can be opened and closed in the vertical direction by operating from the indoor side. These shoji 11 and 12 each have glass 14 and 15 fitted into the shoji consisting of a vertical stile, an upper stile, and a lower stile, respectively, and an external tight material that abuts the window frame is attached to the four peripheries of the outer shoji 11. 16 is also attached to the four circumferential parts of the middle part of the window frame, and an internal tight material 17 that contacts the four circumferential parts of the inner shoji 12 is attached to seal the inner and outer shoji and the window frame to form a space K. There is.

In such a rotating window, the lower frame 7 of the window frame
A longitudinal groove 18 is formed on the outdoor side of the chamber, and a first opening 19 that opens to the outside air is formed in the bottom surface 18a of the groove. This first opening 19 corresponds to a conventional drain hole,
Outside air is introduced into the window frame through the opening 19. A piece-shaped plate-shaped baffle plate 20 shown in FIG. 4 is fitted into the upper part of the first opening 19 in the groove 18 at a predetermined distance from the bottom surface 18a of the groove 18. This baffle plate 20 prevents raindrops from entering the window frame from the first opening due to conditions other than pressure difference, such as kinetic energy, air current, surface tension, etc., but it prevents a large amount of outside air from entering the space K. A second opening 21 is opened for introduction. That is, by providing the second opening 21, the opening that is insufficient to make the space K equal to the pressure when a normal baffle plate is used is solved. As shown in FIG. 3, the second opening 21 is formed above the first opening 19 at the same position as the opening 19.
Since the communication path formed by the opening 9 and the second opening 21 is located on the same line, it is possible to introduce outside air quickly and in large quantities. That is, since the second opening 21 is provided with a smaller diameter than the first opening 19 as described above, the outside air introduced from the first opening 19 flows from the second opening 21 into the space K.
A part of it is introduced into the plate-shaped baffle plate 20.
Since it collides with the lower surface of the baffle plate 20 and is introduced into the longitudinal opening side of the baffle plate 20, the pressure becomes equal in a short time. Even if the plate-shaped baffle plate 20 is provided with the second opening 21 in addition to the first opening 19 as described above, the plate-shaped baffle plate 20 has a distance (height) from the bottom surface 18a of the groove 18. This prevents rainwater from entering under conditions other than pressure difference.

According to the present invention, since the first opening and the second opening are formed at the same position, a large amount of outside air can be introduced into the space K, and the outside air can be introduced into the longitudinal opening of the baffle plate. These also cause the inside of the space K to have the same pressure as the outside air instantaneously. Therefore, rainwater does not leak from the deteriorated portion due to the pressure difference due to deterioration of the tight material, and furthermore, it is possible to prevent rainwater from leaking until the pressure becomes equal. Further, the first opening and the second opening have a predetermined interval, and even rainwater that enters from the first opening under conditions other than the pressure difference has its kinetic energy attenuated before reaching the second opening. This prevents raindrops from entering. Furthermore, the kinetic energy of raindrops that rise along the inner wall surface of the groove of the lower frame is similarly attenuated and falls, so that they do not enter the space K. Therefore, from the above, the watertight device of the present invention has the effect of preventing rainwater from entering.

[Brief explanation of the drawing]

Figure 1 is an overall front view of one embodiment of the present invention;
The figure is a sectional view taken along the line A-A, FIG. 3 is a plan view of the main part, and FIG. 4 is a perspective view of the baffle plate of the present invention. 7... Window bottom frame, 18... Concave groove, 19... First opening, 20... Baffle plate, 21... Second opening.

Claims (1)

[Scope of utility model registration request] A space is formed by sealing the space between the shoji lower stile and the window bottom frame with internal and external tight materials, and a longitudinal groove is formed in the window bottom frame within the space, and an opening is opened to the outside air at the bottom of this groove. A piece-shaped plate-shaped baffle plate is provided with a first opening formed in the groove, and a second opening having a smaller diameter than the first opening is formed in the groove. 1. A watertight device for a window sill, characterized in that the second opening is located above the first opening in the bottom of the groove.