JP2003184437A - Remodeling structure of window - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure heat insulation performance and to improve the efficiency of execution of work in the case of fitting a resin sash with the existing aluminum sash left. <P>SOLUTION: A resin-made clamping member for clamping a projecting plate at the inmost part of the aluminum sash from both sides is fixed to the inmost part of the resin sash. The clamping member is inserted in the projecting plate and screwed from the interior side, and on the other hand, a resin-made heat insulating member is disposed on the outside of the clamping member. The heat insulating member is provided with a channel material having a substantialy U-shaped section and a decorative laminated sheet capable of covering the channel material and the small screw at the same time. The channel material is screwed on the back of the resin sash, and the decorative laminated sheet is fitted to the groove part of the channel material and fixed. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window reforming structure in which a resin sash is newly attached while leaving an existing aluminum sash.

[0002]

2. Description of the Related Art With the spread of highly airtight houses, there is an increasing demand for replacing the aluminum sash of windows with a resin sash having a high heat insulating property. This is because the aluminum sash, which is a metal, has a large heat loss and tends to cause dew condensation in a highly airtight house.

In order to replace an existing aluminum sash with a resin sash, a part of the outer wall of the window frame opening to which the aluminum sash is attached is broken, the aluminum sash is removed, a new resin sash is attached, and then the broken portion is removed. The outer wall was repaired.

However, if the conventional construction method (construction method in which a part of the outer wall is destroyed and then repaired) is adopted as a result of the construction of the so-called quality assurance method (law concerning promotion of quality assurance of housing), the construction cost will be extremely high. The problem of being bulky came to arise.

This is because, if the outer wall is broken, the existing waterproof sheet arranged on the back surface of the outer wall is also lost, so that the so-called recommended water leakage prevention measure defined in accordance with the Product Assurance Law is required. In order to prevent the permeation of water entering from the outer wall with certainty, this is to provide a moisture wicking waterproof sheet and a new waterproof tape at the terminal of the waterproof sheet around the broken window frame opening. In terms of construction cost and work efficiency, for example, a stacking margin of 90 mm or more with the moisture wicking waterproof sheet is required, and it is difficult to actually realize such a recommended construction method as long as the conventional construction method is adopted.

Therefore, there has been a demand for a structure for attaching a resin sash for reforming without removing the existing aluminum sash (thus without breaking the outer wall). Conventionally, as a structure for attaching a new resin sash while leaving the existing aluminum sash, as shown in FIG. 6, for example, a wooden frame 2 or a packing 3 for position adjustment at the back of an existing aluminum sash 1 is used. There is one in which the square pipe 4 is arranged and the resin sash 6 is attached via these. L
1 is an outer wall, L2 is an inner wall, M is a fixed frame for aluminum sashes, B
Is a fixing screw, and 8 is a front frame (cosmetic frame) of the resin sash 6.

[0007]

The problems are to secure work efficiency and heat insulation. Although window frame openings have tentative size standards, they differ from site to site, so when arranging a wooden frame 2 in the back of an existing aluminum sash 1, a craftsman in a different field from a window remodeling company ( Carpenter) is required. Then, as a result of interposing contractors of different occupations, the construction efficiency decreases and the construction cost surely rises.

Generally, a craftsman who installs the frame 2 pays attention to the correct dimension, but a gap is often generated between the newly installed resin sash 6 and the frame 2. This is because the shape of the gap between the aluminum sash 1 and the resin sash varies, and it may be necessary to form the frame 2 into a tapered shape. In such a case, a subtle gap is unavoidably created in many cases. . Further, the frame 2 made of wood has shrinkage due to drying, and in this case also, a gap is formed with time.

As a result, the owner wants to remodel the window using a resin sash in order to prevent dew condensation in a highly airtight house, but if the construction side reforms so that it does not conflict with the quality assurance method, the resin sash is attached. However, there is a contradiction that the result is not so different from the conventional aluminum sash 1 in terms of heat insulation.

Therefore, an object of the present invention is to improve the construction efficiency and reduce the construction cost while ensuring the heat insulation performance.

[0011]

In order to achieve the above object, the window remodeling structure according to the present invention is a window frame remodeling structure in which a resin sash is attached to the inside of the aluminum sash while leaving the existing aluminum sash. As a technical premise, at the innermost part of the resin sash, while fixing the resin-made clamping member that sandwiches the protruding plate at the innermost part of the aluminum sash from both sides, insert this clamping member into the protruding plate and from inside the room. While fixing with screws, a heat insulating member made of resin is arranged on the outer side of the sandwiching member, and the heat insulating member is provided with a channel material having a substantially U-shaped cross section and a decorative plate capable of simultaneously coating the channel material and the screw. The channel material is screwed to the back surface of the resin sash, and the decorative plate is fitted and fixed in the groove of the channel material.

The sandwiching member is composed of a substrate and two parallel sandwiching plates standing upright from the substrate, and the substrate and the sandwiching plate may be provided with cutting grooves formed at appropriate intervals. is there.

[0013]

In the window reforming structure according to the present invention, instead of using the wooden frame (2), the resin holding member fixed to the resin sash is used, and the protruding plate at the innermost portion of the aluminum sash is inserted. Fix the resin sash. No so-called carpentry work is required, since the wooden frame (2) that is individually processed and formed is not used. The resin sash can be installed only by the staff engaged in the remodeling. Further, since the holding member can be attached only by holding the innermost protruding plate of the aluminum sash from both sides, good workability can be guaranteed.

Further, the heat insulating material fixed by screw fixing is
The distance between the indoor space and the aluminum sash is increased by using a channel material with a U-shaped cross section. Further, since the decorative plate constituting the heat insulating material covers the head of the screw that fixes the sandwiching member and the aluminum sash, heat loss (cold heat bridge phenomenon) via the screw is reliably suppressed.

If the holding member is formed with a dimension adjusting groove (cutting groove) (claim 2), it is possible to easily perform fine adjustment of different dimensions depending on the site of the reform.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 3 is a diagram showing an example of the entire mounting state to which a window reforming structure according to the present invention is applied. Briefly explaining this, 11 is an outer wall, 12 is an inner wall, 14 is an existing aluminum sash, M is a fixed frame for an aluminum sash (which is already installed), and 21 is a resin sash newly attached by reforming. Reference numeral 8 is a frame for makeup arranged on the outer peripheral surface of the resin sash 21.

The portions surrounded by the wavy arcs indicated by the symbols T1 and T2 are the application points of the window reforming structure according to the present invention. Since only this part is different from the above-mentioned FIG. 6 (prior art), each part is enlarged,
Shown as FIG. 1 and FIG. In principle, T1 and T2 have the same structure. As a result of slight differences in the dimensions of the parts, only the number of screws to be driven differs. For this reason,
In the following description, only FIG. 1 will be described, and with respect to FIG. 2 having a small number of screws, the same reference numerals as those in FIG.

As shown in FIG. 1, in the window reforming structure according to the present invention, a resin sandwiching member 31 for sandwiching the innermost protruding plate 17 of the aluminum sash 14 into the innermost portion of the resin sash 21 from both sides. Is fixed, the holding member 31 is inserted into the innermost protruding plate 17, and fixed from the indoor side with screws 32. Then, a resin-molded heat insulating member 41 is arranged on the outside of the holding member 31. The sandwiching member 31 and the heat insulating member 41
Along the mounting flange F behind the resin sash 21,
It is desirable to arrange them all around the top, bottom, left and right.

As shown in FIG. 4, the sandwiching member 31 is composed of a substrate 33 and two sandwiching plates 34 and 35 which are parallel to each other and are raised from the substrate 33 substantially vertically. It is desirable to form grooves 37 for cutting formed at appropriate intervals on the substrate 33 and the sandwiching plate 35 at appropriate intervals. This is because it can be easily cut according to the size of the site and is easy to install. The protruding size of the two holding plates 34, 35 from the substrate 33 is not limited. In FIG. 4, the two holding plates 34, 3
Although the protrusion amount of 5 is different, the protrusion amounts of the two sandwiching plates 34 and 35 may be the same at the time of molding.

The screw 32 is a holding plate (34) on the indoor side.
Driving from the outside (inside of the room) of the holding plate (3
It is necessary to pierce 5). This is to ensure that the holding member 31 and the projecting plate 17 are fixed. 39 is a screw for fixing the flange F of the resin sash 21 and the substrate 33 of the holding member 31.

The distance W between the inner wall surfaces of the two sandwiching plates 34 and 35 is set to be approximately the same as the thickness of the protruding plate 17 at the innermost portion of the aluminum sash 14. Since the thickness of the protruding plate 17 is almost fixed as a product (1.2 to 2.5 mm), the value of W can be easily set. In FIG. 4, reference numeral C is an airtight material for blocking outside air.

As shown in FIG. 5, the heat insulating member 41 includes a channel member 42 having a substantially U-shaped cross section, and the channel member 42.
And a decorative plate 44 having a projecting dimension capable of simultaneously covering the screw 32. The channel material 42 may be screwed to the back surface of the resin sash 21 at an appropriate position. Reference numeral 52 is a fixing screw. Also the decorative plate 44
Is fitted (engaged) with the groove portion 49 of the channel member 42.
Let it be fixed. 45 is a groove portion 49 of the channel member 42.
Is a locking groove provided on the indoor side end of the, and 46 is an engaging piece of the decorative plate 44 provided at a position corresponding to the locking piece 45. The channel member 42 and the decorative plate 44 are provided with the locking piece 45.
The engagement of the engagement piece 46 with the engagement piece 46 forms an integral member.
47 is a groove for cutting. C is an airtight material.

The channel material 42 does not support the load of the resin sash 21. Indoor space and aluminum sash 14
It is a member that has a function of increasing the distance from the projecting plate 17 at the innermost part of the and minimizing heat loss. Therefore, the larger the cross-sectional area of the channel material 42, the more advantageous it is. The dimensions are determined according to the usage environment and manufacturing cost.

The decorative plate 44 is desired to completely shut off the head of the screw 32 driven into the holding member 31 from the inside of the room. Most preferably, the end of the decorative plate 44 reaches the inner peripheral surface of the fixed frame M for aluminum sashes, and has a protrusion amount capable of spatially blocking the interior space from the head of the screw 32. It is difficult to determine this protrusion amount in advance. Therefore, it is desirable that the decorative plate 44 also be provided with a groove 47 for cutting for adjusting the dimensions so that the shortening can be adjusted as necessary.

The decorative frame 8 arranged in front of the resin sash 21 may have any structure as long as it can reliably support the load of the resin sash 21. In the present embodiment, for example, a fixing support plate 24 having a substantially U-shaped cross section for supporting a front load via a screw 23 that is driven obliquely, and a decorative plate 2 arranged by fitting the surface of the fixing support plate 24.
It consisted of 5 and. Cosmetic frame 22 according to this embodiment
Is proposed by the present applicant in utility model registration No. 3076730.

Therefore, according to such a window reforming structure, the innermost protruding plate 17 of the aluminum sash 14 is sandwiched and fixed by the resin sandwiching member 31, and the sandwiching member 31 is located at the innermost portion of the resin sash 21. Since it is fixed to, the support structure at the rear (back side) of the resin sash 21 can be simplified. This is because the carpentry work as in the past is unnecessary. The dimension of the holding member 31 may be adjusted by using the cutting groove 37 to cut off an unnecessary portion with a cutter or the like.

The holding member 31 is screwed from the inside of the room.
Since the screw (32) is driven into the protruding plate 17 of the aluminum sash 14, there is a possibility that it will cause a cold heat bridge phenomenon and increase heat loss on the indoor side. Secondly, the channel material 42 increases the distance between the indoor space and the aluminum sash.
Since the head of the screw 32 is completely shielded from the indoor side by the decorative plate 44 having its end fixed to the inside, the possibility of heat loss including the problem of the cold bridge phenomenon of the screw 32 can be surely eliminated. .

As a result, the resin sash can be attached by a simple construction work, and the problem of heat loss due to leaving the aluminum sash 14 can be solved.

The sandwiching member 31 and the heat insulating member 41 are preferably arranged along the mounting flange F at the rear of the resin sash 21 on the entire upper, lower, left and right sides, but they are not necessarily arranged on the entire circumference. . If the workability can be reduced, part of the top, bottom, left and right can be omitted. For example, it may be arranged only on the left and right edges and the lower edge, and the upper edge may use another support structure.

[0030]

As described above, according to the window reforming structure of the present invention, it is possible to improve the construction efficiency and reduce the construction cost while ensuring the heat insulation performance.

[Brief description of drawings]

FIG. 1 is an enlarged view illustrating a portion indicated by reference numeral T1 in FIG.

FIG. 2 is an enlarged view of a portion indicated by reference numeral T2 in FIG.

FIG. 3 is a diagram illustrating an example of a window reforming structure to which the present invention is applied.

FIG. 4 is a cross-sectional view illustrating a sandwiching member according to the present invention.

FIG. 5 is a cross-sectional view illustrating a heat insulating member according to the present invention.

FIG. 6 is a diagram illustrating a conventional window reforming structure.

[Explanation of symbols]

8 Makeup frame 11 outer wall 12 inner wall 14 Existing aluminum sash 17 protruding plate 21 resin sash 23, 32, 39, 52 screws 24 Fixed support plate 25 Veneer 31 clamping member 33 substrate 34, 35 clamping plate 37 Cutting groove 41 Thermal insulation member 42 channel material 44 Veneer 45 locking groove 46 engagement piece 49 groove C airtight material Fixed frame for M aluminum sash (existing) F mounting flange T1, T2 Applicable points of the reform structure according to the present invention

Claims (2)

[Claims] 1. A remodeling structure of a window frame in which a resin sash is attached to the inside of the aluminum sash while leaving the existing aluminum sash. While sandwiching the resin from both sides, the resin sandwiching member is fixed, and the sandwiching member is inserted into the projecting plate to fix the screw from the indoor side, while the resin heat insulating member is arranged outside the sandwiching member. , A channel material having a substantially U-shaped cross section, and a decorative plate capable of simultaneously covering the channel material and the screw. The channel material is fixed to the back surface of the resin sash with a screw, and the decorative plate is a channel material. A window reforming structure characterized by being fitted and fixed in a groove. 2. The sandwiching member is composed of a substrate and two parallel sandwiching plates which are erected substantially vertically from the substrate, and the substrate and the sandwiching plate are provided with cutting grooves formed at appropriate intervals. The reforming structure for a window according to claim 1, wherein: