JPH035677Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a dew condensation prevention device for residential buildings.

In recent years, in residential construction, metal members such as aluminum have come to be frequently used in place of conventional wood-based members. In particular, the use of these metal frame materials for openings that span between indoor and outdoor areas has the advantage of increasing the airtightness of the building and improving its insulation performance. However, on the other hand, condensation occurs on the surface of the frame material due to the temperature difference between the inside and outside of the building, and as a result, stains and stains are generated on interior materials such as interior wall panels and floorboards adjacent to the frame material. There are problems such as spoiling of interior materials and, for example, flooring falling off, which is particularly serious in places with high temperature and humidity such as kitchens where a large amount of water is used.

One way to solve this problem is to install a condensation tray on the top surface of the lower frame and form a discharge passage to lead the condensed water accumulated in the condensation tray to the outside. - Publication No. 73893 states,
A groove is described in which a groove for receiving condensed water is formed in the lower frame, and a stepped path is formed for discharging the condensed water accumulated in the groove to the outside from the bottom of the groove. However, in this conventional condensed water drainage structure, when the condensed water is discharged from the inside of the door to the outside, the path is step-like, so wind from the outside does not pass through this step-like path. It has the disadvantage that it easily enters the interior of the room and has poor airtightness. In addition, since the lower frame is made of metal as mentioned above, it has the disadvantage that the low temperature on the outside that is transmitted through the metal interior is transmitted to the indoor side, easily causing condensation. Ta.

This idea was made in consideration of the above points, and there is less risk of outdoor wind blowing into the indoor area.
Moreover, a dew condensation prevention device is realized that hardly causes dew condensation on the lower frame portion.

In order to achieve the above-mentioned purpose, this invention is designed to prevent condensation from foamed plastic in an opening that spans between the indoor and outdoor areas of a building by tightly contacting and covering the upper surface of the inside of the door in the lower frame of the opening. At the same time, a groove is formed along the longitudinal direction of the lower frame on the upper surface of the lower frame on the lower side of the condensation tray, and a groove is formed from the vertical end surface of the condensation tray on the door side toward the indoor side, and then downward. A condensed water drainage passage is formed which bends and opens into the groove, and a drain hole is formed in the bottom side of the groove for draining the condensed water in the groove to the outside through the lower part of the door. , below the door-side end of the condensation tray above,
The present invention is characterized in that an elastic member is provided which protrudes outward from the lower frame, comes into close contact with the inner surface of the door, and covers the gap between the inner surface and the inner surface of the door.

Hereinafter, the configuration of the present invention will be explained based on an illustrated embodiment.

FIG. 1 shows an outline of the area around the back door of the kitchen. In the figure, 1 and 1 are cubes provided on both sides of the building opening 2, and are integrally formed of aluminum or the like. As shown in FIG. 2, the outer ends of these mullions 1,
3, and a door 4 is attached to one of them so as to be openable and closable by a hinge 5 or the like. Similarly, the inner end side is bent inward and the door stop airtight material 6,
6 is provided, and further extends toward the front to form vertical frames 7, 7.

Reference numeral 8 denotes a lintel which is also integrally formed from aluminum or the like, and as shown in FIG. The upper frame 9 is provided and further extends inward to form an upper frame 9.

Reference numeral 10 denotes a picture frame made of foamed vinyl chloride or the like and having a roughly L-shaped cross section.The main body portion 11 is fixed to the vertical frames 7, 7 or the upper frame 9 with screws 12, etc., and the tip bent portion 13 is fixed to the inner wall. It is in contact with 14 sides of the panel. In this way, by forming the frame 10 from foamed plastic such as foamed vinyl chloride, dew condensation hardly occurs. Moreover, unlike wooden products, even if it gets wet, stains and dirt will not be removed.

Reference numeral 15 denotes a threshold according to the present invention, which includes a threshold main body 17 having a drip slope 16 on the upper surface, and a lower frame 18 having a U-shaped cross section with the inner end side of the threshold main body 17 bent upward. It is made of aluminum or the like and is integrally molded in the same way as above. and,
As shown in FIG. 5, the threshold body 17 has a door stop 19 projecting upward from the threshold body 17 between the lower frame 18 and the inner surface of the door 4, and the lower end of this door stop 19. Multiple drainage holes 20, 20 on the side
Examples are given at intervals. Reference numeral 21 denotes an elastic member fitted to the upper end side of the door stop 19, which projects outward from the door stop 19 and comes into close contact with the inner surface of the door 4, thereby making the door stop 19 and the door 4 It covers the gap between.

On the other hand, 22 is a condensation catcher made of foamed plastic such as foamed vinyl chloride, and the upper surface has a water return slope 24.
is provided, and a recessed portion 25 that fits the lower frame 18 is formed approximately in the center of the lower surface, and is screwed onto the upper surface of the lower frame 18 through a watertight material with screws 23 or the like.
It is attached in close contact with the lower frame 18 so as to cover it.

Further, on the outer end side of the condensation receiver 22, a fitting part 27 that fits into the groove 26 between the inner end surface 19a of the door stop 19 and the lower frame outer end surface 18a is provided continuously to the recessed part 25. A plurality of notch grooves 29, 29, . . ., which protrude downward and span the insertion portion 27 and the protruding end portion 28, are arranged in a row at intervals in the same manner as described above. These cut grooves 29, 29...
After the condensation receiver 22 heads toward the indoor side from the end face on the door 4 side, it bends downward in the middle and opens into the groove 26, thereby draining the condensed water into the groove 26. It is said to be a lead-out passage that leads to the inside.

When the recessed portion 25 is fitted into the lower frame 18, the protruding end portion 28 will fit into the upper end surface 1 of the door stop 19.
9b, the fitting portion 27 similarly fits into the groove 26, and the sill 15 and the condensation receiver 22 become integrated. In this way, a passage communicating from indoors to outdoors is formed inside the sill 15 by the cut grooves 29, the grooves 26, and the drain holes 20 that open on the bottom side surfaces of the grooves 26. become. In addition, at this time, the above-mentioned cut grooves 29, 29...
and the drain holes 20, 20, . . . are provided at different positions.

On the other hand, the inner end 30 of the condensation receiver 22 is connected to the floor plate 3
1 is in contact with the top surface.

Now, as shown in FIG. 4, it is assumed that dew condensation 32 has formed on the surface of the vertical frame 7. The condensed water 32 that has fallen onto the condensation pan 22 travels along the water return slope 24 of the condensation pan 22, as shown by the arrow in the figure, and then along the vertical end face on the door 4 side, to the condensation water 32 provided below the vertical frame 7. It flows into the groove 26 through the cut groove 29 . Further, the condensed water that did not flow into the cut groove 29 side while running down the vertical end surface accumulates on the upper surface of the elastic member 21 between the inner surface of the door 4, and the accumulated condensed water similarly flows to each cut. It flows into the inflow groove 29 side. Note that the condensed water that does not flow into the cut groove 29 side when the door 4 is closed is discharged to the outside as it is when the door 4 is opened, but this is not particularly inconvenient. and,
The water passes through a drainage hole 20 formed in the doorstop 19, passes below the door 4, and is discharged outdoors.

In this way, the condensed water 32 adhering to the surface of the vertical frame 7 or the upper frame 9 or the inner surface of the door 4 is discharged outdoors through the cut grooves 29, the grooves 26, and the drain holes 20, causing stains and stains on the floorboard 31. There is almost no chance of staining.

Furthermore, as in this embodiment, by forming the condensation tray 22 itself from foamed plastic with high heat insulation properties, no condensation will form on the surface of the condensation pan, making the effect even more remarkable. Similarly,
As shown in this embodiment, if the frame 10 in contact with the inner wall panel 14 is also made of foamed plastic,
This eliminates the drawback of conventional metal picture frames in that dew condensation water from the picture frame adheres to the inner wall surface and stains the inner wall surface.

The present invention has the above structure, and the condensed water accumulated in the condensation tray flows down the vertical end surface on the door side, and on the way down, or to the upper surface of the elastic member that is in close contact with the inner surface of the door. After the condensed water accumulates, it enters the groove through the outlet passage and is further discharged from the groove to the outside through the slotted hole, and the overall discharge path of this condensed water is bent into a hook shape. This has the effect that there is very little risk of wind blowing into the room from the outside, and as a result, airtightness is less likely to be compromised. In addition, the bottom frame is covered with a condensation pan made of highly insulating foam plastic, which reduces condensation on the condensation pan surface and prevents condensation from forming on the condensation pan compared to when it is made of wood. The effect is that there is no risk of stains or stains.

[Brief explanation of drawings]

Figure 1 is a schematic diagram of the vicinity of the back door, Figure 2 is a cross-sectional plan view of the building opening, Figure 3 is a vertical side view, and Figure 4 is a cross-sectional view of the main parts of Figure 3. FIG. 5 is also an exploded perspective view. 2...Opening, 3...Building outer wall, 4...Door,
14...Inner wall panel, 18...Bottom frame, 20...Drain hole, 21...Elastic member, 22...Condensation catcher, 2
6... Groove, 29... Cut groove (condensed water outlet passage),
32...Condensation water.

Claims (1)

[Scope of utility model registration request] In an opening that spans the indoor and outdoor areas of a building, a condensation tray made of foamed plastic is installed so as to tightly contact and cover the upper surface of the inside of the door in the lower frame of the opening, and A groove is formed on the upper surface of the frame along the longitudinal direction of the lower frame, and the condensed water is discharged from the vertical end surface on the door side of the condensation receiver toward the indoor side, then bent downward and opened into the groove. A drain hole is formed in the bottom side of the groove to form a passage, and a drainage hole is formed in the bottom side of the groove to drain the condensed water in the groove to the outside through the bottom of the door. A dew condensation water draining device characterized by being provided with an elastic member that protrudes outward from the frame, comes into close contact with the inner side surface of the door, and covers the gap between the inner side surface of the door and the inner side surface of the door.