JP2002188280A - Opening periphery forming method at the time of reforming, and opening periphery decorative member for use in the forming method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To positively prevent infiltration of rainwater from the periphery of a newly formed opening without executing sealing, and to ensure high design value in appearance of the periphery of the opening, when external finish materials each formed of a long plate such as a lightweight concrete plate are newly stuck to an external wall surface of an existing building having the opening, at the time of reforming. SOLUTION: According to an opening periphery forming method, furring strips 3 and 4 are mounted on four sides of the opening 60 of the existing building. Then, a decorative member 10 which is formed by bending a thin steel plate and has inserting space portions S into which end face portions of the new external finish materials B can be inserted, is fixed to the furring strips such that the inserting space portions S are arranged on the outside. Further, the new external finish materials B for reforming are stuck to the building wall surface by inserting the end face portions thereof into the inserting space portions S, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exterior wall of an existing building in which a long exterior material such as a lightweight concrete plate is newly attached to the exterior wall of an existing building for renovation. The present invention relates to a method of constructing around an opening such as a formed window, and a decorative member around the opening used in the method.

[0002]

2. Description of the Related Art When renovating an existing building, a new decorative panel is attached to the outer wall surface. When an opening such as a window is formed on the outer wall surface, it is necessary to perform the construction so that the decorative plate is not positioned at that portion. For this reason, when the decorative board is a long exterior material such as a lightweight concrete board, it is usually cut to an appropriate length at a construction site. Due to such a case, it is inevitable that the end face portion (side end face or cut edge) of the exterior material is exposed around four circumferences of the newly formed opening. Further, there is a possibility that a body edge for attaching the exterior material is exposed. The side edges of the exterior material and the cut edge are not necessarily waterproof and lack the aesthetic design, so in the renovated building, the four peripheral surfaces of the newly formed opening are left as they are. This is not preferable, and it is necessary to cover the end face of the newly attached exterior material by some means.

[0003] The present invention has been made in view of the above-described circumstances, and is simple when a long exterior material such as a lightweight concrete plate is attached to the outer wall surface of an existing building when renovating the existing building. Renovation that can reliably prevent rainwater from entering from around the newly formed opening, and can also improve the appearance design around the newly formed opening. An object of the present invention is to provide a construction method around the opening at the time, and a decorative member around the opening used in the construction method.

[0004]

According to the present invention, there is provided a method of constructing an opening around an opening at the time of renovation according to the present invention, comprising the steps of: attaching a new rim along four circumferences around an opening of an existing building; A steel plate decorative member having an insertion space forming portion for inserting and holding an end surface portion of the exterior material is provided by using the body edge so that the insertion space forming portion is on the outside. A step of forming a new opening by fixing to the surrounding four circumferences, and a step of attaching an exterior material for reforming to the wall surface of the building while inserting an end face portion thereof into the space forming portion for insertion of the decorative member, And at least

The decorative member around the opening according to the present invention is a decorative member around the opening used in the above-mentioned construction method, and comprises four straight lines of upper, lower, left and right forming four new circumferences around the new opening. It is configured as an assembly of members, and each linear member is formed by bending a thin steel plate. In a preferred embodiment,
Each linear member constituting the decorative member has a base flat surface serving as a fixing surface to a new waist edge, and an insertion for inserting and holding an end surface portion of an exterior material formed in front of the base flat surface. At least a space forming portion for use, and a cosmetic surface plate positioned forward of the space forming portion for insertion.

According to the present invention, a vertical waist edge and a horizontal waist edge are attached around an opening, such as a window of an existing building, by appropriate means such as nailing or screwing, and utilized therewith. The decorative member made of steel plate is fixed, and the work of attaching the decorative member at the time of reforming is easy, and secure fixing is obtained. Further, the required water stoppage between the existing opening and the new opening is easily ensured. Also,
Since the end faces (side end faces and cut edges) of the exterior material to be newly attached are all covered from the outside by the steel plate part forming the insertion space forming part of the decorative member, a newly formed opening is provided. Rainwater does not enter the inside from the surroundings, and at the same time, high appearance design around the opening is easily ensured.

Further, as described above, the decorative member is constituted as an aggregate of four linear members, that is, up, down, left and right,
And because it is a product by bending thin steel plate,
Manufacture is easy and high appearance design can be easily provided. Also, the remodeling can be easily and appropriately performed on the openings having various different sizes only by changing the length of the linear member. In particular, in the case where a base flat surface serving as a fixing surface to a new trunk is provided, fixing to the building at the time of renovation becomes easier and more reliable, and further, the makeup is further provided in front of the insertion space forming portion. When the front surface plate is positioned, the appearance and design are further improved.

[0008] In a preferred aspect, of the linear members forming the decorative member, rainwater is discharged to the bottom area of the insertion space forming part in the linear member that forms the upper side around the new opening. Holes are provided. With this configuration, after the renovation, the rainwater that has traveled along the outer wall surface and entered the insertion space forming portion is reliably discharged to the outside, and the infiltration of the rainwater into the building is more reliably avoided.

The upper and lower and left and right linear members may be formed in advance to a predetermined length, but may be formed as long members in advance, and newly formed openings may be formed. It may be obtained by cutting to an appropriate length according to the surrounding dimensions. In the case of the latter, there is an advantage that it is possible to take various construction modes with various changes for openings having different dimensions at the same or different construction sites.

[0010] In the construction method of the present invention, the above-mentioned step of fixing the decorative member around the periphery of the opening by using the torso to form a new opening, and an exterior material for renovation. The step of attaching the end face portion to the wall surface of the building while inserting the end face portion into the insertion space forming portion of the decorative member, may be performed as separate steps before and after,
Of course, depending on the environment of the construction site, two steps may be performed simultaneously.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view illustrating one embodiment of a method for applying a work around an opening and a decorative member around the opening used in the method according to the present invention. FIG. 3 is a cross-sectional view in the horizontal direction. FIG.
FIG. 5 is a perspective view showing an upper side member which is one member constituting the decorative member, and FIG. 5 is a diagram illustrating an assembled state of the upper side member and another side member. In the illustrated example, the window frame sash 50
Are installed around the opening 60 of the existing building, which is attached as an external sash, and one of the decorative members around the opening according to the present invention.
In addition, a new exterior material B is attached to the outside of an existing exterior wall (for example, a mortar wall) A by using this, and the exterior wall of the building is reformed.

In the example shown in FIGS. 2 and 3, a horizontal frame 53 and a vertical frame 54 are formed on a base material 51 and a pillar 52 of an existing building.
The exterior wall A such as a mortar wall is attached by using the waist edges 53 and 54 so as to form the existing opening 60, and a sealing material is provided around four circumferences of the opening 60. The window frame sash 50 is attached via a backup material 55 and a backup material 56. Note that the configuration around the opening is an example of the existing opening, and the construction method around the opening at the time of remodeling according to the present invention can be performed around any existing opening. It is.

At the time of construction, first, the existing opening 60 is used.
Along the four circumferences, the appropriate horizontal waist edge 3 and vertical waist edge 4 are nailed or fixed to the exterior wall A using nails 5 or screws.
Next, if necessary, a coating material 6 made of a steel plate having an L-shaped cross section is attached so as to cover the inner end faces (cut end faces) of the fixed body edges 3 and 4. In the case where metal fittings for fixing the exterior material B using the fastening metal are performed, a spacer having an appropriate size is sandwiched between the covering material 6 and the body edge according to the metal fitting shape. Install it. By attaching such a covering material 6, the waterproofness around the new opening and the appearance design can be further enhanced. The upper side member 2 formed by bending a thin steel plate with respect to the body edges 3 and 4 fixed as described above.
0, lower side member 30, and left and right side members 40a, 40b
The decorative member 10 around the opening according to the present invention, which is configured as an aggregate of four linear members, is attached.

As shown in FIG. 4, the upper side member 20 has a base flat surface 21 serving as a fixing surface to the newly attached upper lateral waist edge 3, and extends horizontally forward from the lower end of the base flat surface 21. Exterior material end surface receiving portion 22 and exterior material end surface receiving portion 2
Bottom portion 2 extending forward in the horizontal direction slightly below position 2
3, a front surface portion 24 extending vertically upward from the front end of the bottom portion 23, and a decorative surface plate 25 extending vertically downward somewhat forward of the front surface 24.

The upper open area surrounded by the base flat surface 21, the exterior material end surface receiving portion 22, the bottom surface portion 23, and the front surface portion 24 inserts the end surface portion of the exterior material B to be newly pasted. And insertion space forming part S for holding
Serve as a function. The width of the insertion space forming portion S, that is, the interval between the base flat surface 21 and the front portion 24 is substantially the same as the thickness of the exterior material B to be newly attached.

Further, a large number of rainwater discharge holes 26 are formed at predetermined intervals in the bottom surface portion 23 forming the insertion space forming portion S, and the outer wall surface B is formed after reforming.
When the rainwater enters the insertion space forming portion S through the above, the entered rainwater is discharged to the outside through the hole 26.
This can prevent rainwater from entering the interior of the building. Further, the decorative surface plate 25 not only enhances the appearance design, but also plays a role of hiding the rainwater discharge hole 26 when viewed from below from a viewer.

As shown in FIG. 2, the lower side member 30 has a base flat surface 31 serving as a fixing surface to the newly attached lower horizontal body edge 3, and extends obliquely downward and forward from the lower end of the base flat surface 31. A bottom surface portion 33, a decorative surface plate 35 extending vertically downward from the front end of the bottom surface portion 33, and a plate pressing portion 36 formed on the back surface of the decorative surface plate 35 are formed. In the lower side member 30, the distance between the base flat surface 31 and the decorative surface plate 35 is substantially equal to the distance between the base flat surface 21 and the decorative surface plate 25 in the upper side member 20, and The distance between the virtual plane including the base flat surface 31 and the tip of the plate pressing portion 36 is substantially equal to the width of the insertion space forming portion S in the upper side member 20, that is, the thickness of the exterior material B to be newly attached. Are equal. In the lower side member 30, an area which is open below and surrounded by a virtual plane including the base flat surface 31, the bottom surface portion 33, and the tip of the plate pressing portion 36 constitutes the insertion space forming portion S.

As shown in FIG. 3, left and right side members 40a,
40b has a mirror-symmetrical shape, and has substantially the same shape. Describing the right side member 40b, the right side member 40b includes a base flat surface 41 serving as a fixing surface to the newly attached right lateral trunk 4, and a front end from the lower end (left end) of the base flat surface 41. Bottom portion 43 extending to
A cosmetic face plate 45 extending horizontally from the front end of 3;
A plate pressing portion 46 is formed by bending the front surface plate 45 from the front end to the rear surface. In the left and right side members 40a, 40b, the distance between the base flat surface 41 and the decorative surface plate 45 is substantially the same as the distance between the base flat surface 21 and the decorative surface plate 25 in the upper side member 20, Further, the interval between the base flat surface 41 and the tip of the plate pressing portion 46 is equal to the insertion space forming portion S in the upper side member 20.
, Ie, substantially equal to the thickness of the exterior material B to be newly attached. In the left and right side members 40a, 40b, the virtual space including the base flat surface 41, the left and right sides surrounded by the bottom surface 43 and the tip of the plate pressing portion 46 constitute the insertion space forming portion S.

At the time of construction, the upper side member 20,
The lower side member 30, the left side member 40a, and the right side member 40b,
With the respective insertion space forming portions S on the outside, the respective flat base surfaces are formed around the openings formed by the inner peripheral edges of the body edges 3 and 4 with the body edges 3 and 4.
And fixed. At the time of fixing, as shown in FIG. 3, the left and right side members 40a and 40b are positioned so that the position of the bottom surface 43 and the covering material 6 attached to the vertical trunk edge 5 are flush with each other. As shown in FIG. 2, as shown in FIG. 2, by fixing the upper end of the base flat surface 31 and the covering material 6 attached to the lateral waist edge 3 so as to be flush with each other, high waterproofness and appearance design are achieved. Sex and both are ensured.

As shown in FIG. 5, at the joint between the ends of the upper side member 20 and the right side member 40b, the outer material end face receiving portion 2 of the upper side member 20 is provided at the portion where they abut.
By notching or notching the 2 and the bottom portion 23 and bending them toward the inside of the right side member 40b (indicated by 23a in the drawing), the two are securely assembled. Although not shown, a similar assembly is performed at the joint between all the linear members, that is, at the joint between the upper side member 20 and the lower side member 30 and the left and right side members 40a and 40b. The four linear members, that is, the upper side member 20, the lower side member 30, the left side member 40a, and the right side member 40b are securely assembled. By punching and fixing everything, a new opening 60a having excellent water-stopping properties and appearance design is formed.

For the newly formed opening 60a,
As shown in FIG. 1, the end face portion of the new outer wall plate B for reforming is attached to the decorative member 10 (the upper side member 20 and the lower side member 3
0, the left side member 40a and the right side member 40b) are attached to the insertion space forming portion S while being inserted into the insertion space forming portion S.
The construction around the opening at the time of renovation according to the present invention is completed. Although FIG. 1 shows a mode in which the outer wall plate B is stretched horizontally, it is needless to say that the outer wall plate B may be stretched vertically.

[0022]

As described above, according to the method of the present invention around the opening at the time of renovation, the existing outer wall can be completely concealed by attaching the new exterior material B, All of the end surface portions of the exterior material around the opening are covered by the insertion space forming portion S of the decorative member 10 and are not exposed to the outside. Therefore, the end face of the new exterior material B is not exposed to rainwater, there is no necessity for sealing work, and rainwater does not enter the interior of the building. The decorative member 10 is made of a thin steel plate, the manufacturing cost is low, and the overall construction cost is also reduced. Only the outer surface of the decorative member 10 made of a thin steel plate appears outside the periphery of the new opening, and high appearance design can be easily secured.

Further, according to the present invention, the work of attaching the decorative member 10 at the time of reforming is easy, and a secure fixation is obtained. Further, required water stoppage between the existing opening 60 and the new opening 60a is also ensured. Further, since the decorative member 10 is configured as an aggregate of four linear members, it is easy to change the length of the linear members even for openings having various different sizes. And appropriate renovation work can be performed.

[Brief description of the drawings]

FIG. 1 is a perspective view for explaining an embodiment of a method of applying around an opening and a decorative member around an opening used in the applying method according to the present invention.

FIG. 2 is a vertical sectional view around an opening after construction.

FIG. 3 is a cross-sectional view in the horizontal direction around an opening after construction.

FIG. 4 is a perspective view showing an upper side member which is one member constituting the decorative member.

FIG. 5 is a perspective view for explaining a joint portion between ends of an upper side member and a right side member.

[Explanation of symbols]

10: decorative member, 20, 30, 40a, 40b: side member which is a linear member, 21, 31, 41: substrate flat surface, 2
5, 35, 45 ... decorative surface plate, S ... insertion space forming part, 26 ... rainwater discharge hole, 50 ... existing window frame sash, 6
0: Existing opening, 60a: Newly formed opening,
A: Existing wall, B: New exterior material to be renovated

Claims (5)

[Claims] 1. A process of attaching a new rim along four circumferences around an opening of an existing building, and a steel plate makeup having an insertion space forming portion for inserting and holding an end face portion of an exterior material. A step of fixing the member to four circumferences around the opening by using the torso so that the insertion space forming part is on the outside, and forming a new opening, and an exterior material for reforming And attaching the end face portion to the wall of the building while inserting the end portion into the insertion space forming portion of the decorative member. 2. A decorative member around an opening used in the construction method according to claim 1, wherein the decorative member is formed of four linear members (upper, lower, left and right) forming four circumferences around the new opening. A decorative member around an opening, wherein the decorative member is configured as an aggregate, and each member is formed by bending a thin steel plate. 3. Each of the linear members is for inserting and holding a base flat surface serving as a fixing surface to a new trunk edge and an end surface portion of an exterior material formed on the front side of the base flat surface. The decorative member around the opening according to claim 2, further comprising at least an insertion space forming portion and a cosmetic surface plate positioned forward of the insertion space forming portion. 4. A plurality of holes for discharging rainwater are provided in a bottom region of the insertion space forming portion in a linear member forming an upper side around a new opening. The decorative member around the opening according to claim 3. 5. The linear member according to claim 3, wherein the linear member is cut from a long member to an appropriate length in accordance with a dimension around an opening to be newly formed. A decorative member around the opening as described in the above.