JPH0538232Y2 - - Google Patents

Description

[Detailed explanation of the invention] a. Purpose of the invention (industrial application field) The structure of the watertight part at the lower corner of the double sash according to this invention is the structure of the watertight part of the lower corner of the double sash that is used for the purpose of heat insulation and soundproofing. Water tightness is maintained between the frame or the open end and the inner surface of the vertical frame that constitutes the indoor sash, so that condensed water adhering to the inner surface of the vertical frame leaks to the outside of the double sash. This is to prevent

(Prior art) In cold regions such as Hokkaido, for the purpose of indoor and outdoor insulation, in buildings located in noisy places such as near airports, for example, insulation is used for indoor and outdoor soundproofing. The use of double sashes as shown in Figures 7 to 9 is being considered.

This double sash is made by combining an outdoor sash frame 4 and an indoor sash frame 5, each of which is made up of a rectangular combination of an upper frame 1, a lower frame 2, and left and right vertical frames 3, 3, through a heat insulating material 6. It is made up of combinations.
That is, an outdoor protrusion 7 is formed on the indoor side surface of the outdoor sash frame 4 so as to protrude toward the indoor side, and an outdoor side protrusion 7 is formed on the outdoor end of the indoor sash frame 5 and protrudes from the outdoor side and the inside of the sash frame. The indoor side protrusion 8 formed in this state means that the two protrusions 7 and 8 are overlapped with spacers 9 provided intermittently between them, and a screw 10 is inserted through a circular hole formed in the indoor side protrusion 8. is screwed onto the outdoor side protrusion 7 and tightened to form the indoor side sash frame 5 having the indoor side protrusion 8.
and an outdoor sash frame 4 having an outdoor protrusion 7. The heat insulating material 6 attached to the locking groove 12 formed on the outdoor end edge of the indoor sash frame 5 is brought into contact with the indoor side surface of the outdoor sash frame 4, and the insulation material 6 is attached to both the indoor and outdoor sash frames 4, We are trying to insulate the space between 5 and 5.

In addition, sliding door shoji 15, 15 are built inside the sash frames 4, 5 on both the indoor and outdoor sides, respectively.
The insides of both sash frames 4 and 5 can be opened and closed independently.

(Problems to be solved by the invention) By the way, in the case of the double sash constructed as described above, there are the following problems that must be solved.

That is, each frame 1 constituting each sash frame 4, 5,
Moisture may adhere to the inner circumferential surfaces of 2 and 3 due to condensation of water vapor, etc., but if this moisture leaks to the outer circumferential side of each sash frame 4 and 5, double sashes may be installed. The wood around the inside of the opening may rot (in the case of a wooden building), or the reinforcing bars exposed inside the opening for fixing each sash frame 4 and 5 may corrode (in the case of a concrete or steel frame building). Put it away.

In particular, in the case of a double sash having a structure as shown in FIGS. When the condensed water flows down along the inner peripheral surface of the frame 3, it concentrates at the connection between the lower ends of the vertical frames 3, 3 and both ends of the lower frame 2, so it is necessary to keep this area sufficiently watertight. Become.

For this reason, conventionally, a sealing material called pine sealer has been interposed between the end surface of the lower frame 2 constituting the indoor-side sash frame 5 and the lower inner surface of the vertical frame 3 against which this end surface abuts. (Such a sealing material was designed to maintain watertightness between the end surface of the lower frame 2 and the lower inner surface of the vertical frame 3.) , and the lower inner surface of the vertical frame 3 against which this end surface abuts.)

However, the vertical frame 3 that constructs the indoor-side satsushi frame 5
Since the indoor side protrusion 8 is formed on the inside surface of the bottom frame 2 at the outdoor end, it is not possible to provide the sealing material over the entire width of the bottom frame 2, and the end of the bottom frame 2 and the vertical frame cannot be provided with sealing material. Watertightness with the lower end of No. 3 becomes insufficient.

That is, as shown in an enlarged view in FIG. 10, at the end of the lower frame 2, a notch 14 is formed in which the indoor protrusion 8 provided on the vertical frame 3 is fitted. The sealing material for maintaining watertightness between the inner surface of the lower frame 2 and the end surface of the lower frame 2 can only be provided in the area A in FIG. It is not possible to provide a sheet-shaped sealing material in both areas B and C in the same figure where the two contact each other.

Although it is possible to interpose a sheet-like sealing material in the area B, which is the contact area between the inner surface of the indoor side protrusion 8 and the end face of the lower frame 2, the size of the notch 14 and the indoor side protrusion If the size of 8 is not exactly matched, there will be a difference between the pressing force of the sealing material in the A range and the pressing force of the sealing material in the B range, and the watertightness will be insufficient on the side where the pressing force is small. It will be a victory. Also, C
It is impossible to keep the area watertight with a sheet-like sealant such as pine sealer.

Move the inner surface 3a of the vertical frame 3 of the indoor sash frame 5 to the position shown by the chain line a in FIG. For example, the first
Maintain watertightness in both areas A and B in Figure 0, and also in C.
Although it is no longer necessary to keep the area watertight, if such a structure is adopted, the following new problems will arise.

That is, the inner surface 3a of the indoor-side sash frame 5 is
If the width of the indoor sash frame 5 becomes smaller than the width of the outdoor sash frame 4 by moving it to the chain line a position in the figure, the sliding door shoji 15 built inside the indoor sash frame 5 may The width dimension and the width dimension of the sliding door shoji 15 built inside the outdoor sash frame 4 no longer match, and the sliding door shoji 15 built inside the indoor sash frame 5 and the sliding door shoji 15 built inside the outdoor sash frame 4 are built inside. It becomes necessary to prepare different types of sliding door shoji 15, making manufacturing of sliding door shoji and parts management troublesome. Also, as a result of the vertical frame 3 of the indoor sash frame 5 protruding inward (to the right in Figure 10) than the vertical frame 3 of the outdoor sash frame 4, the sliding door shoji 15 built into the outdoor sash frame 4 is closed. It becomes difficult to move from the state to the released state because the vertical frame 3 gets in the way of the indoor-side sash frame 5. Furthermore, when both the sliding door shoji 15 built inside the indoor sash frame 5 and the sliding door shoji 15 built inside the outdoor sash frame 4 are moved to the closed state, both sash frames 4, 5 The vertical frames 16, 16 of the inner sliding door shoji 15, 15 no longer match, resulting in an unsightly appearance.

If the indoor-side sash frame 5 and the outdoor-side sash frame 4 are formed integrally, the indoor-side protrusion 8, which obstructs the use of a sheet-like sealing material, can be omitted, and all of the above-mentioned inconveniences can be eliminated. However, if both the sash frames 4 and 5 are integrally formed, manufacturing of the sash frame becomes troublesome. That is, as shown in FIGS. 8 and 9, when the indoor sash frame 5 and the outdoor sash frame 4, which are formed separately, are joined together to form a double sash, one or both of the sash frames may be Since a conventional single-ply sash can be used as the frame (in the illustrated example, the outdoor sash frame 4), the effort to create a new extrusion mold for making the sash frame can be reduced or omitted. However, it is not preferable to manufacture a sash frame exclusively for double sashes that is not versatile from the viewpoint of reducing production costs and parts management costs for the sash frame.

Furthermore, if the inner and outer sash frames are integrally formed,
It is no longer possible to provide insulation between the inner and outer sashes, and condensed water adheres to the surface of the indoor sashes during cold weather, resulting in staining of curtains, etc. installed indoors.

The structure of the watertight portion at the lower corner of the double sash of the present invention eliminates all of the above-mentioned disadvantages.

b. Structure of the invention (Means for solving the problem) In the double sash that incorporates the structure of the watertight part of the lower corner of this invention, the indoor sash frame and the outdoor sash frame each have a shoji built inside. A frame is formed on the indoor side of the outdoor sash frame so as to protrude toward the indoor side; It is constructed by combining the indoor side protrusions formed in the above-mentioned state and joining them via a heat insulating material.

The structure of the watertight portion of the lower corner of the present invention is such that the ends of the horizontal frame members constituting the lower sides of both the indoor and outdoor sash frames of such a double sash are connected to the The vertical frame and the horizontal frame member are connected by abutting against the inner surfaces of the vertical frames constituting both sash frames, and furthermore, a fixing block is attached to the lower end of the indoor side protrusion, and a fixing block is attached to the lower end of the indoor side protrusion. In this state, the fixing block of the watertight block consisting of the packing attached to the fixing block is fixed in such a state that a part of the packing is exposed below the indoor side protrusion.

A portion of the packing exposed below the indoor side protrusion is abutted against a portion of the horizontal frame member that is closer to the outside of the end room and does not come into contact with the sealing material.

(Function) In manufacturing the watertight portion of the lower corner of the double sash of the present invention constructed as described above, the entire length of the contact area between the end of the horizontal frame member of the outdoor sash and the vertical frame, Watertightness between the ends of the horizontal frame members of the indoor sash and a part of the contact area with the vertical frame is achieved by using a sheet-shaped sealing material sandwiched between the end surface of each horizontal frame member and the inner surface of the vertical frame. is maintained by

Further, watertightness between the indoor protrusion formed at the outdoor end of the indoor sash frame and the horizontal frame member is achieved by packing the watertight block and abutting the horizontal frame member.

(Example) Next, the present invention will be explained in more detail while explaining the illustrated embodiment.

Figures 1 to 6 show an embodiment of the structure of the watertight part at the lower corner of the double sash of the present invention, and Figure 1 is an exploded perspective view of the lower corner of the double sash provided with the watertight part. Figure 2 shows the watertight block in relation to the lower frame. Figure 1 is a view taken in the direction of the FIG. 6, a side view seen from the left side of the figure, is a view similar to FIG. 2, showing the shape of a cutout at the lower end of the vertical frame of the outdoor sash frame.

The double sash incorporating the structure of the watertight part of the lower corner of the present invention has an indoor sash frame 5 and an outdoor sash frame 5 with sliding door shoji 15 and 15 built inside, respectively, as shown in FIGS. 7 to 9 described above. An outdoor sash frame 4 is formed on the indoor end surface of the outdoor sash frame 4 so as to protrude toward the indoor side.
An indoor protrusion 8 having an L-shaped cross section and protruding toward the outdoor side and the inside of the sash frame is connected to the outdoor side of the sash frame via a heat insulating material 6.

In the structure of the watertight part of the lower corner of the present invention,
The lower frame 2 is a horizontal frame member that constitutes the lower sides of both the indoor and outdoor side sash frames 5 and 4 of such a double sash.
(Only the lower frame 2 of the indoor sash frame 5 is shown in FIG. 1.) Vertical frames 3, 3 that constitute both the above-mentioned sash frames 5, 4
The vertical frames 3, 3 and the lower frame 2 are joined by abutting against the inner surfaces 3a, 3a of the lower end portions of the vertical frames 3, 3.

The watertight structure using the sealing material is the same as that of the conventional double sash described above, but furthermore, in the structure of the watertight part of the lower corner of the present invention, the lower end of the indoor side protrusion 8 is , a watertight block 19 consisting of a fixing block 17 and packing 18 is fixed.

The fixing block 17 constituting the watertight block 19 is installed in a groove 20 formed on the outer side of the indoor protrusion 8, as shown by arrow A in FIG.
Fitting fixing part 1 that can be inserted freely from the outside without rattling
7a, and an adhesive part 17b that continues below the fitting and fixing part 17a. Pasting part 17
By forming the width w of b to be smaller than the width w of the fitting fixing part 17a (w<W), on the indoor side surface of the fixing block 17, a continuous part of both parts 17a and 17b,
A stepped portion having a width W-w is formed.

Sponge-like packing 18 is adhered to the indoor side surface and inner side surface of the adhesive part 17b of the fixing block 17 having such a shape, along the indoor side protrusion 8.

In this way, the fixing block 17 of the watertight block 19 consisting of the fixing block 17 and the sponge-like packing 18 is fitted from the outside into the groove 20 on the outside of the indoor side protrusion 8, as described above. By inserting the tapping screw 22 inserted from the inside through a circular hole 21 formed on the inner surface of the lower end of the inner protrusion 8 into the circular hole 23 formed in the fixing block 17 and tightening, the indoor protrusion 8 is tightened. Fix it at the bottom end. The lower end of this indoor protrusion 8 is slightly cut out so as to be positioned above the lower end of the vertical frame 3, and the fixing block 17 is attached to the lower adhesive part 17b. The packing is fixed in such a state that the inner side part of the upper chamber abuts the indoor side protrusion 8 and the lower part is exposed below the indoor side protrusion 8. The lower end of the outdoor protrusion 7 of the outdoor sash frame 4 is cut out as shown in FIG. 20 so as not to interfere with the further fixation.

Also, on the outer side of the inner end of the adhesive part 17b of the lower half of the fixing block 17, when the fixing block 17 is fitted into the groove 20 on the outside of the indoor side protrusion 8, a tip end is formed as shown in FIG. forms an extending portion 24 that comes into contact with the indoor side surface of the outdoor sash frame 4, and the adhesion portion 17
One end of the packing 18 affixed to b protrudes further outdoors than this extension 24 in a free state. Therefore, when the watertight block 19 is fitted into the groove 20, the packing 18
One end is connected to the indoor side of the outdoor sash frame 4,
Watertightness is maintained between the packing 18 and the outdoor sash frame 4.

In addition, heat insulating materials 6, 6 (see Figs. 8-9, 2-3 ) is continuous at the lower corner of the indoor sash frame 5 while elastically compressing the packing 18, so that the watertightness between the insulation materials 6, 6 and the packing 18 is sufficiently maintained. I can figure it out. A notch 25 is formed at the upper corner of one end of the packing 18 to avoid a continuous portion of the vertical and horizontal insulation materials 6, 6.

On the other hand, the lower half of the packing 18 exposed downward from the lower edge of the indoor side protrusion 8 is abutted against the part of the lower frame 2 near the outside of the end room that does not come into contact with the sealing material (pine sealer). There is.

That is, as shown in FIG. 1, the edge of the lower frame 2 on the outdoor side is provided with a notch 26 that matches the outer circumferential shape of the adhesive part 17b of the lower half of the airtight block 19 that this edge faces. and a tapping screw 11,
11 and the tapping grooves 13, 13, and when the vertical frame 3 and the lower frame 2 are connected together by tightening, the packing 18 is elastically attached between the edge of the notch 26 and the adhesive part 17b. The lower frame 2 and vertical frame 3 are compressed to maintain watertightness between the lower frame 2 and the vertical frame 3.

When the lower frame 2 and the vertical frame 3 are connected and fixed, the portion of the upper end of the lower frame 2 located at the periphery of the notch 26 is connected to the indoor protrusion formed on the vertical frame 3. 8 lower edge (located at line A-I in Figure 2)
comes into contact with.

The structure of the watertight part of the lower corner of the double sash frame of the present invention is configured as described above, and the entire length of the contact area between the end of the lower frame 2 of the outdoor sash frame 4 and the vertical frame 3, and the roof Watertightness between the end of the lower frame 2 of the inner sash frame 5 and a portion of the abutting portion of the vertical frame 3 (corresponding to area A in FIG. It is held in place by a sheet-shaped sealing material called pine sealer that is sandwiched between the inner surface of the frame and the inner surface of the frame.

In addition, the indoor protrusions 8 formed at the outdoor end of the indoor sash frame 5 shown in ranges B and C in FIG.
The airtightness between the two is achieved by the abutment between the packing 18 attached to the watertight block 19 and the lower frame 2.

The above-mentioned embodiment shows that the structure of the watertight part of the lower corner of the present invention is applied to the joint between the lower end of the vertical frame 3 of the double sash and the end of the lower frame 2. However, the present invention can also be applied to the joint between the middle part and the end part of the vertical frame.

c. Effects of the invention Since the structure of the watertight part of the lower corner of the double sash of this invention is configured and operates as described above, moisture does not adhere to the inner surface of the sash frame due to condensation of water vapor, etc. Even in such cases, this moisture will not leak to the outer periphery of the sash frame, and it will not rot the wood around the opening where the double sash frame is installed, or it will not leak out to the inner periphery of the opening to secure the sash frame. There is no need to corrode the reinforcing steel.

[Brief explanation of the drawing]

Figures 1 to 6 show an embodiment of the structure of the watertight part at the lower corner of the double sash of the present invention, and Figure 1 is an exploded perspective view of the lower corner of the double sash provided with the watertight part. Figure 2 is a view from the X arrow in Figure 1 showing the watertight block in relation to the lower frame, Figure 3 is a plan view showing the watertight block in relation to the vertical frame, Figure 4 is a rear view, and Figure 5 is a view of the second A side view seen from the left side of the figure, Figure 6 is a view similar to Figure 2 showing the shape of the cutout at the lower end of the vertical frame of the outdoor sash frame, and Figure 7 is a view of the watertight part of the lower corner of the present invention. FIG. 8 is a cross-sectional plan view, FIG. 9 is a longitudinal side view, and FIG. 10 is an enlarged view of the lower left part of FIG. 8. 1...Top frame, 2...Bottom frame, 3...Vertical frame, 3a...
...Inner surface, 4...Outdoor side sash frame, 5...Indoor side sash frame, 6...Insulation material, 7...Outdoor side ridge, 8
... Indoor side protrusion, 8a ... Inner surface, 9 ... Spacer, 10 ... Screw, 11 ... Tapping screw, 1
2...Latching groove, 13...Tapping groove, 14...
Notch, 15... Sliding door shoji, 16... Vertical stile, 17
...Fixing block, 17a... Fitting fixing part, 17
b... Adhesive part, 18... Packing, 19... Watertight block, 20... Groove, 21... Circular hole, 22
... Tapping screw, 23 ... circular hole, 24 ... extension part, 25 ... notch part, 26 ... notch.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A building in which an indoor-side sash frame and an outdoor-side sash frame, each with a shoji installed inside, are formed on the indoor side of the outdoor-side sash frame in a state that protrudes toward the indoor side. The outer protrusion and the indoor protrusion formed on the outdoor end of the indoor sash frame so as to protrude toward the outdoors and the inside of the sash frame are combined by joining them through a heat insulating material. Indoor side of double satsushi,
Abutting the ends of the horizontal frame members forming the lower sides of the outdoor side sash frames against the inner surfaces of the vertical frames forming the above-mentioned both sash frames via a sheet-like sealing material,
This vertical frame and the horizontal frame member are connected, and a watertight block consisting of a fixing block and packing attached to the fixing block along the indoor side ridge is fixed to the lower end of the indoor side ridge. Fix the block in a state where a part of the packing is exposed below the indoor side protrusion, and attach the part of the packing exposed below the indoor side protrusion to the outside part of the end room of the horizontal frame member. The structure of the watertight part of the lower corner of the double sash, where the part that does not contact the sealing material mentioned above is in contact with it. (2) The structure of the watertight portion of the lower corner of the double sash, as set forth in claim 1 of the utility model registration, wherein the horizontal frame member is the lower frame. (3) The structure of the watertight portion of the lower corner of the double sash, as set forth in claim 1 of the utility model registration, in which the horizontal frame member is seamless.