JPH074140A - Remodeling method for window frame of existing building and remodeled window frame structure thereby - Google Patents

Abstract

PURPOSE:To improve workability and so forth by cutting and removing an old window frame near the body surface of a window opening part, and installing a new window frame at the window opening part in such a condition as covering the whole width in the depth direction of the remaining old window frame. CONSTITUTION:An anchor bolt is driven to be fixed into a window opening part 1 after cutting an old window frame protruding from a body surface S. Window frame supporting metal fittings 9 are respectively set onto the anchor bolt and an old window frame 2b remaining in the opening part 1. Each fastener 10 is locked at the locking part 4 of the window frame body 5 of a new window frame 3 so as to adjust its position by sliding, and also the fastener 10 is welded to each metal fitting 9. Receiving metal fittings 6 are set at the interior side periphery part of the body 5 with screws (b). Covers 7 are set at the metal fittings 6 with screws (c), and sealing 11 is applied thereto. It is thus possible to increase a lighting area, improve appearance by decreasing a face dimension, reduce waste disposal cost because its body is not damaged, and provided a short working term and inexpensive working cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for remodeling a window frame of an existing building and a window frame structure remodeled by the method.

[0002]

2. Description of the Related Art Reconstruction methods for window frames of existing buildings are roughly classified into three methods: a covering method, a drawing method and a cutting method.

The covering method is a method of fitting a new window frame into the old window frame itself and connecting it, and a concrete structural example thereof is shown in FIGS. In this example, the old window frame 2 left in the existing building is used as a base, and channel-shaped window frame support fittings 21 are welded to the upper side and the side of the old window frame 2, and
A bracket 22 is welded to the interior side of these brackets 21, while a bracket 23 for the lower part of the old window frame 2 is integrally provided with a bracket 23 for the lower part of the window frame.
, And an L-shaped receiving metal fitting 25 is welded to the upper surface of the metal fitting 24.

Then, the window frame main body 26 is fitted in the space surrounded by the window frame support metal fittings 21, 24, and the window frame main body 26 is received by the screws d, 23, 23 ,.
On the other hand, a holding metal fitting 28 provided with a ceiling 27 is pressed against the outside of the window frame body 26 via a tension bolt 29, and a cover 30 is used to receive the metal fittings 22, 2
No. 3, which is screw-fastened, and such a covering method is proposed in, for example, Japanese Patent Publication No. 3-69436.

The pulling-out method is to pull out and remove the old window frame by using a pulling machine, and then cut and remove the body part around the window opening to form a fitting space for the new window frame. A method of fitting the window frame 5 and connecting and connecting the new window frame to the body side, for example, Japanese Patent Publication No. 2-37474.
It is proposed by the gazette.

[0006] The cutting method is a method of cutting and removing the body around the window frame with a watershette nozzle, and providing the window frame at a new window opening formed by the cutting, and is disclosed in, for example, Japanese Patent Laid-Open No. 62-62-62. It is proposed by Japanese Patent No. 178683.

[0007]

However, each of the window frame structures remodeled by the above-mentioned construction method has advantages and disadvantages, and in the remodeled window frame constructed by the covering method, there is no need for the work to build the body. Therefore, while shortening the construction period and reducing the construction cost are achieved, the new window frame covers the old window frame, and the added size of the window frame increases, giving a heavy feeling of pressure.
Moreover, there is a problem in that the daylighting area of the window is extremely reduced.

In the structure of the remodeled window frame by the pulling-out method, the old window frame is pulled out and removed, so that the added size of the window does not become so large, and the daylighting area of the window also changes significantly. Absent. However, when pulling out the old window frame, the body around the window opening is easily scratched and not only the outer wall needs to be repaired, but also the color matching of the outer wall becomes very difficult. In addition to the large amount of time and labor required to pull out the frame, the amount of waste to be processed increases, leading to an increase in construction period and cost.

The structure of the remodeled window frame by the cutting method has the same effect as that of the pulling-out method, but requires a special device, and the construction period and the construction cost are greatly increased. There is a problem in that the post-treatment of water requires enormous cost and equipment.

In view of such circumstances, the present invention provides a method for remodeling a window frame of an existing building, which has the disadvantages of the above-mentioned conventional construction method suppressed as much as possible and the advantages are integrated as much as possible. , And a window frame structure that is suitably remodeled by the construction method.

[0011]

[Means for Solving the Problems] A method for remodeling a window frame of an existing building according to the present invention which has achieved the above object is to cut an old window frame of an existing building near the body surface of a window opening. It is characterized in that a new window frame is attached to the window opening so as to cover the remaining width of the old window frame part in the prospective direction, and the remodeled window frame structure by this method is used for the existing building. It is characterized in that the old window frame is cut and removed in the vicinity of the body surface of the window opening, and a new window frame is attached to the window opening to cover the remaining width of the old window frame in the prospective direction.

[0012]

That is, according to the method for remodeling a window frame of an existing building according to the present invention, only the old window frame portion projecting from the body surface of the window opening is cut and removed, and a new window opening is newly added to this window opening. Since a window frame is attached, it is possible to fit a window frame with a small sizing dimension that does not change the lighting area much like the extraction method, and according to this construction method, the lighting area is large and the sizing dimension is large. A preferred retrofit window frame structure having a small size is obtained.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a remodeled window frame of an existing building. In the conventional covering method, for example, as shown in FIGS. 3 and 4, the old window frame remains in the window opening of the existing building. In contrast to this, a new window frame is provided, whereas in the window frame remodeling method according to the present invention, the old window frame of the existing building is used as the body surface S of the window opening 1.
It was cut and removed with more detail, and more specifically, the two-dot chain line a in FIGS.
At the position shown by, the old window frame portion 2a protruding from the body surface S of the old window frame 2 is cut off and removed without leaving the body surface S to be touched, and thus the body is not damaged, and the remaining old window The feature is that the new window frame 3 is attached so as to cover the entire width of the frame portion 2b in the prospective direction.

In this embodiment, the cut surface of the old window frame 2 indicated by the chain double-dashed line a above and below the window opening is the body surface S.
(See FIGS. 1 and 3), and on the left and right sides of the window opening, the cut surface of the old window frame 2 indicated by the chain double-dashed line a is the body surface S.
This is an example, although it is slightly separated from each other (see FIGS. 2 and 4), and all the cut surfaces are flush with the body surface S or all the cut surfaces are slightly separated from the body surface S. It is possible to implement it apart.

The new window frame 3 has a window frame main body 5 in which locking portions 4 are continuously provided on both sides in the width direction of the outer surface portion, and a receiving metal fitting screwed around the indoor side peripheral portion of the window frame main body 5. 6 and a cover 7 which is fixed to the receiving bracket 6 with a screw c and covers the gap between the window frame body 5 and the body surface S.

The attachment of the new window frame 3 to the window opening 1 is performed as follows, for example. That is, anchor bolts 8 are driven in and fixed to the side surfaces of the window opening 1 after cutting the old window frame portion protruding from the body surface S, and the upper and lower old bolts left around the anchor bolt 8 and the window opening 1 are fixed. While the window frame support fitting 9 is provided on the window frame portion 2b, the fastener 10 is engaged with the locking portion 4 of the window frame body 5 by sliding so that the fastener 10 can be adjusted in position. Welding is performed, the receiving metal fitting 6 is fixed to the inner peripheral portion of the window frame body 5, the cover 7 is fixed to the receiving metal fitting 6 with screws b and c, and the sealing 11 is applied.

According to such a window frame remodeling method, the body surface S
The new window frame 3 is installed in the window opening 1 by removing the old window frame part that has been projected from, so the lighting area is the same as the extraction method without damaging the body around the window opening 1. It is possible to fit a new window frame 3 with a large size and a small fitting size, and because the entire width of the old window frame portion 2b remaining in the body in the prospective direction is covered with the new window frame 3, a good-looking remodeling is achieved. It

Moreover, since the object of cutting and removing is limited to the extremely small portion protruding from the body surface S, the cutting and removing work is simple and the work of repairing the outer wall is required because the body is not damaged. In addition, since the amount of waste is small, the burden of waste treatment is reduced, and as a whole, the renovation work of the window frame can be achieved at a low cost in a short construction period.

[0019]

As described above, the method for remodeling the window frame of the existing building according to the present invention is a unique method different from the method typified by three, that is, the old window frame is opened. A new window frame with a large lighting area and a small added dimension is adopted by cutting and removing it at the body surface of the part and installing a new window frame to cover the entire width of the remaining old window frame in the prospective direction. Fitting is achieved without damaging the body and reducing the processing load of waste, and it is achieved in a short period and at a low cost. Overall, the disadvantages of the conventional method can be suppressed as much as possible and only the advantages can be achieved. We have come to be able to provide a construction method that will be integrated as much as possible. By adopting such a construction method, a suitable remodeled window frame structure having a large lighting area and a small added dimension has been obtained.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a remodeled window frame of an existing building according to the present invention.

FIG. 2 is a cross-sectional plan view of a remodeled window frame of an existing building according to the present invention.

FIG. 3 is a vertical sectional side view of a remodeled window frame by a conventional covering method.

FIG. 4 is a cross-sectional plan view of a remodeled window frame manufactured by a conventional covering method.

[Explanation of symbols]

1 ... Window opening part, 2b ... Old window frame part, 3 ... New window frame, S ... Body surface.

Claims (2)

[Claims] 1. The old window frame of the existing building is cut and removed in the vicinity of the body surface of the window opening, and a new window frame is provided in the window opening so as to cover the remaining width of the old window frame in the prospective direction. A method for remodeling window frames of existing buildings, which is characterized by being attached. 2. The old window frame of the existing building is cut and removed in the vicinity of the body surface of the window opening, and a new window frame is attached to the window opening so that the remaining direction of the old window frame is projected. Refurbished window frame structure characterized by covering the entire width.