HK1075928B - Waterproof assembly for the underside of openings and a construction structure employing the same - Google Patents

Description

Waterproof member for lower side portion of opening portion and construction structure using the same

Technical Field

The present invention relates to a waterproof member to be attached to a lower portion of an opening in construction around the opening of a window or the like of an exterior wall of a building, and more particularly, to a waterproof member to be attached to a lower portion of an opening in construction in which a new exterior finishing member is attached to an existing exterior wall and is modified, and a construction structure of the lower portion of the opening using the waterproof member.

Background

When a new decorative panel is attached to the outer wall surface in order to reform an existing building, when an opening such as a window is formed in the outer wall surface, it is necessary to perform construction so that the decorative panel is not positioned in the opening, in the case where the decorative plate is a long-sized exterior trim such as a lightweight concrete plate, in general, in view of the fact that the side end surface or cut wood section of the exterior garnish is certainly insufficient in waterproof property and poor in appearance, it is not preferable to place the four peripheral surfaces of the newly formed opening portion as it is in the modified building, and it is necessary to cover the end surface portion of the newly attached exterior garnish by some means.

Then, decorative members are attached to the peripheral surfaces of the opening portion so as to cover the end surface portions of the exterior garnish (see, for example, JP 3459405 a and JP 2002-188279 a), fig. 10 is a perspective view showing the construction structure around the opening portion described in JP 3459405 a, and decorative members 40A, 40B, 40c, and 30A are attached to the peripheral surfaces of the opening portion 60 so as to cover the end surface portions of the exterior garnish B. Fig. 11 is a cross-sectional view showing a lower side portion vicinity of an opening 60 in an enlarged manner, a conventional wall W is provided with a slat 53 mounted on a main body 51 of a building, an outer wall a made of a mortar wall or the like is treated by the slat 53, a window frame 50 is mounted on a periphery of the opening 60 by a sealing material 55 and a support 56, as a modification of the periphery of the conventional opening 60, a wale 3 having a certain thickness is fixed to the outer wall a by striking with nails 5 along the periphery of the opening 60 as compared with a case of a usual use, decorative members 40A, 40b, 40c, 30A are fixed to the wale 3 by the nails 5, and a covering member 6 made of a steel plate having an L-shaped cross-section is mounted so as to cover an inner side surface (wood cross-sectional end surface) of the fixed wale 3.

Of the decorative members 40A, 40B, 40c, 30A, the decorative member 30A attached to the lower side portion of the opening portion 60 functions as a waterproof member that prevents rainwater and the like from entering the inside of the exterior garnish (hereinafter, "decorative member 30A" is referred to as "waterproof member 30A"). a plate pressing portion 36 is formed inside the front surface portion 35 of the waterproof member 30A, and the plate pressing portion 36 comes into contact with the surface of the exterior garnish B, whereby rainwater and the like do not enter the inside of the exterior garnish B.

As another example of such a waterproof member, there is known a type as shown in fig. 12 (refer to JP 2004-176350A) in which, in the waterproof member 30B, although the plate pressing portion 36 visible on the waterproof member 30A shown in fig. 11 is not provided, instead of this, the inclined surface portion 32 of the waterproof member 30B is extended to a large size outside the exterior garnish B, whereby a sufficient space is provided between the front surface portion 33 at the front end of the waterproof member 30B and the exterior garnish B, whereby rainwater falling down along the front surface portion 33 of the waterproof member 30B is prevented from blowing in and invading into the back surface side of the exterior garnish B.

As still another example of the waterproof member, there is known a type shown in fig. 13 (see JP 3234198 a), in which a plate pressing portion 36 formed inside a front surface portion 33 of the waterproof member 30C is brought into contact with the surface of a garnish B in the same manner as the waterproof member 30A shown in fig. 11, so that rainwater or the like does not enter the interior of the garnish B, and in which a spare front surface portions 33B and 33C are provided inside the front surface portion 33a, and a part of the waterproof member 30C is cut in accordance with the thickness of the garnish B and then used.

Disclosure of Invention

The waterproof member 30A shown in fig. 11 prevents water from entering by contacting the plate pressing portion 36 with the exterior garnish B, and the dimension of the distance between the imaginary plane including the fixing portion 31 and the front end of the plate pressing portion 36 is determined to be equal to the thickness of the exterior garnish B to be formed, so that the exterior garnish not suitable for this dimension cannot be used, and the exterior garnish to be mounted is restricted.

Further, if the conventional window frame 50 is extended outside the outer wall a around the window frame as shown in fig. 11, there is no problem because the joint portion between the outer wall a and the wale 3 attached to the surface thereof is covered with the window frame 50, however, in the case where the conventional window frame is an internally installed window frame, the joint portion between the outer wall a and the wale 3 attached to the surface thereof is not covered with the window frame and is exposed to the outside because the outer wall a is extended outside the window frame, and rainwater or the like enters from the vicinity of the joint portion, and therefore, in the case where the conventional window frame is an internally installed window frame, the waterproof member 30A cannot be used.

In the case of the waterproof member 30B shown in fig. 12, since the plate pressing portion 36 formed on the waterproof member 30 of fig. 11 is not provided, the thickness of the exterior garnish B usable depending on the position of the plate pressing portion 36 is not limited, however, in order for the waterproof member 30B to effectively exhibit the waterproof function, a space of 30mm or more must be provided between the front surface portion 33 and the surface of the exterior garnish B.

Further, since the waterproof member 30B includes the cover 34, and the cover 34 covers the upper end of the wale 3 to which the waterproof member is attached, it is not necessary to attach the covering member 6 for covering the wale 3 separately as in the waterproof member 30A of fig. 11, and the construction work is saved, however, like the waterproof member 30A of fig. 11, in the case where the existing window frame is an interior frame, the joint portion between the exterior wall a and the wale 3 attached to the surface thereof is exposed to the outside, and therefore, the waterproof member 30B of fig. 12 cannot be used in the case where the existing window frame is an interior frame.

In the case of the waterproof member 30C shown in fig. 13, an operation of cutting a part of the waterproof member 30C in accordance with the thickness of the exterior garnish B to be used is required, and the construction is troublesome, and a part of the member is discarded, which results in high cost.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a waterproof member which is used for a lower portion of an opening portion of a building and can always secure a sufficient distance between an exterior garnish and a front portion of the waterproof member regardless of a construction structure around the opening portion and a thickness of the exterior garnish attached around the opening portion.

The waterproof member of the present invention is a waterproof member to be attached to a lower side portion of an opening portion of a building, and is characterized by comprising a fixing portion to be fixed to a building body side, an inclined surface portion extending obliquely downward from a lower end of the fixing portion to a surface side, and a front surface portion extending downward from a lower end of the inclined surface portion, wherein the inclined surface portion has a mechanism capable of changing an extending width with respect to the fixing portion.

If the waterproof member of the present invention is used, by adjusting the projecting width of the opposite fixing portion in the slope portion, regardless of the construction structure around the opening of the building and the thickness of the exterior finishing member installed around the opening, a sufficient space can often be secured between the exterior garnish and the front portion of the waterproof member, for example, without providing a cross brace therebetween, even when a construction structure is formed in which the waterproof member is directly fixed to the outer wall or when a thick exterior trim is attached around the opening, therefore, the waterproof member of the present invention can be used for reforming existing walls of various structures, and at this time, the exterior trim mounted around the opening portion can be of various thicknesses.

In a preferred form, the above-mentioned inclined plane portion is formed of a 1 st inclined plane portion connected to the above-mentioned fixing portion and a 2 nd inclined plane portion connected to the front face portion, and a clamping portion is provided on the lower face side of the 1 st inclined plane portion, the clamping portion slidably clamping the 2 nd inclined plane portion between the 1 st inclined plane portion, thereby forming the above-mentioned mechanism the waterproof member of the present invention can easily adjust the projecting width of the opposite fixing portion in the inclined plane portion by changing the projecting width of the inclined plane portion by a simple means, and by changing the projecting width of the 2 nd inclined plane portion with respect to the 1 st inclined plane portion, further, the clamping portion can form various means on condition that the projecting width of the 2 nd inclined plane portion with respect to the 1 st inclined plane portion is adjusted in a state of clamping the 2 nd inclined plane portion between it and the 1 st inclined plane portion, for example, in an embodiment described later, a substrate portion as a portion receiving the 2 nd inclined plane portion is provided on the clamping portion, however, the holding portion may be constituted only by holding the minimum necessary member without providing such a receiving portion.

In a preferred embodiment, the clamping portion is constituted by a substrate portion extending from the lower end of the fixing portion on the lower surface side of the 1 st inclined surface portion, and a pressure-bonding portion formed by bending the front end of the substrate portion upward to be in pressure-bonding contact with the lower surface of the 1 st inclined surface portion, and the 2 nd inclined surface portion is clamped between the pressure-bonding portion and the 1 st inclined surface portion in a state where at least a part thereof is received between the substrate portion and the 1 st inclined surface portion.

In this aspect, even when a pulling force acts in a direction to separate the 1 st and 2 nd inclined surface portions from each other, the bent portion of the 2 nd inclined surface portion is hooked on the pressure-bonding portion of the clamping portion, so that the 1 st and 2 nd inclined surface portions can be prevented from being separated from each other, and particularly, if the vicinity of the tip of the bent portion of the 2 nd inclined surface portion is pressed against the substrate portion of the clamping portion, the clamped state of the 2 nd inclined surface portion is more stable, and the adjustment of the projecting width with respect to the 1 st inclined surface portion can be more smoothly performed.

According to the present invention, by adjusting the extension width of the inclined surface portion of the waterproof member, even in the case of mounting the exterior garnish having a large thickness, a sufficient distance can be maintained between the exterior garnish and the front surface portion of the waterproof member, and in addition, various methods can be employed for fixing the extension width of the inclined surface portion with respect to the fixing portion, but for example, an operation of attaching an adhesive tape along the boundary line between the holding portion and the 2 nd inclined surface portion, or the like can be performed.

In the present embodiment, the waterproof member is directly fixed to the existing outer wall without performing the work of attaching the wale 3 and the covering member 34 to the existing outer wall a as in the construction structure shown in fig. 9 and 10, and therefore, the construction is easy.

In the present aspect, even when the existing window frame is an interior window frame, the joint portion between the existing exterior wall and the wale attached to the surface thereof is covered with the waterproof member, and therefore, it is possible to prevent rainwater and the like from entering the joint portion.

As described above, the waterproof member of the present invention can be used as a waterproof member for the lower portion of the opening portion when reforming existing walls of various structures, and the exterior trim attached around the opening portion when reforming can be used as a member of various thicknesses.

Drawings

Fig. 1 is a perspective view showing a waterproof member for an opening lower portion according to the present invention;

FIG. 2 is a perspective view of two components that make up the flashing member shown in FIG. 1;

FIGS. 3(a) and 3(b) are cross-sectional views taken along lines IIIa-IIIa and IIIb-IIIb in FIG. 2, respectively;

fig. 4 is a perspective view illustrating a state where the extension width of the slope part of the waterproof member shown in fig. 1 is maximized;

fig. 5 is a perspective view showing a state where the extension width of the slope part of the waterproof member shown in fig. 1 is minimum;

fig. 6 is a sectional view showing an example of an opening constructing structure using the waterproof member shown in fig. 1;

fig. 7 is a sectional view showing another example of an opening portion constructing structure using the waterproof member shown in fig. 1;

fig. 8 is a sectional view showing still another example of an opening constructing structure using the waterproof member shown in fig. 1;

fig. 9 is a sectional view showing still another example of an opening constructing structure using the waterproof member shown in fig. 1;

fig. 10 is a perspective view showing an example of a conventional opening construction structure;

fig. 11 is a cross-sectional view showing in an enlarged manner the vicinity of the lower side of the opening portion of the construction structure shown in fig. 10;

FIG. 12 is a cross-sectional view showing still another example of a conventional construction structure for an opening part;

fig. 13 is a cross-sectional view showing still another example of a conventional opening portion constructing structure.

Detailed Description

In the following, a preferred embodiment of the present invention will be described with reference to the accompanying drawings, fig. 1 is a perspective view showing an opening lower waterproof member according to an embodiment of the present invention, the waterproof member 10 is composed of a fixing portion 11, a slope portion 12 and a front face portion 15, the fixing portion 11 forms a fixing surface facing the main body side, the inclined surface portion 12 extends obliquely downward from the lower end of the fixing portion 11 to the front surface side, the front face 15 extends downward from the lower end of the inclined face 12, the inclined face 12 is composed of a 1 st inclined face 13 and a 2 nd inclined face 14, the 1 st inclined surface part 13 is connected with the fixing part 11, the 2 nd inclined surface part 14 is connected with the front surface part 15, a holding part 16 is provided below the 1 st inclined surface part 13 so as to hold the 2 nd inclined surface part 14 between the 1 st inclined surface part 13, and, in addition, the projecting width of the 2 nd inclined surface portion 14 with respect to the 1 st inclined surface portion can be adjusted in a state where the 2 nd inclined surface portion 14 is clamped by the clamping portion 16.

The waterproof member 10 according to the above-described embodiment is formed by connecting two members as shown in fig. 2, i.e., a 1 st component 10a and a 2 nd component 10b, fig. 3(a) and 3(b) are cross-sectional views taken along the line IIIa-IIIa and the line IIIb-IIIb in fig. 2, respectively, the 1 st component 10a is formed by a fixing portion 11, a 1 st inclined surface portion 13, and a holding portion 16, the 2 nd component 10b is formed by a front surface portion 15 and a 2 nd inclined surface portion 14, and these components 10a, 10b are each manufactured by bending a single steel plate.

That is, when the component part 1 is formed, first, the lower portion of the fixing part 11 is bent at the front side, and then, the lower portion is folded back so as to overlap with the lower side of the bent portion, thereby forming the inclined surface part 1 in which two plates are stacked, next, the tip of the folded back portion is folded back again at the front side of the fixing part 11, thereby forming the substrate part 16b extending substantially parallel to the inclined surface part 1 13, further, the tip of the substrate part 16b is bent upward to form the pressure bonding part 16a, the vicinity of the tip of the pressure bonding part 16a is pressure bonded to the lower surface of the tip of the inclined surface part 1 13, the pressure bonding part 16a and the substrate part 16b constitute the sandwiching part 16, and further, in order to enhance the strength of the fixing part 11, the upper side portion of the fixing part 11 is folded back to the inner surface side, thereby forming the folded back part 11a.

In forming the 2 nd component 10b, one side of the 2 nd inclined surface portion 14 is bent downward to form a front surface portion 15, and the other side thereof is bent downward to form a bent portion 14a. in order to increase the strength of the front surface portion 15, the lower side portion of the front surface portion 15 is folded back to form a folded portion 15. by inserting the bent portion 14a of the 2 nd inclined surface portion 14 of the 2 nd component 10b formed in this manner between the 1 st inclined surface portion 13 and the holding portion 16 of the 1 st component 10a, the two components 10a, 10b are connected, and the waterproof member 10 is completed, and in the manufactured state, the vicinity of the tip of the bent portion 14a of the 2 nd inclined surface portion 14 is pressed against the substrate portion 16b of the holding portion 16.

Fig. 4 is a perspective view showing a state where the protruding width of the slope part 12 with respect to the fixing part 11 is maximum in the waterproof member 10 formed as such, in which state only the vicinity of the bent part 14a in the 2 nd slope part 14 is received between the 1 st slope part 13 and the clamping part 16, and most of the 2 nd slope part 14 protrudes outside the 1 st slope part, on the other hand, fig. 5 is a perspective view showing a state where the protruding width of the slope part 12 is minimum, in which state the entirety of the 2 nd slope part 14 is received between the 1 st slope part 13 and the clamping part 16, and the protruding width of the slope part 12 can be adjusted between such a maximum protruding width and a minimum protruding width.

Various embodiments of construction structures of the lower side portion of the opening portion for reforming the periphery of the opening portion of the existing building by using the waterproof member 10 described above will be described below, fig. 6 is a sectional view showing a construction structure of the lower side portion of the opening portion for reforming a new exterior finishing member from the outer wall of the existing building, the construction of the existing wall W is the same as that shown in fig. 11, and the same reference numerals are used to the same members to omit the description thereof, in the construction structure of the lower side portion of the opening portion of the present embodiment, the fixing portion 11 of the waterproof member 10 is fixed to the existing outer wall a by using the small screw 64 below the existing window frame 50, and further, the cross brace 61 having a certain thickness below the waterproof member 10 is fixed to the outer wall a by using the long screw 62 such as the thick screw thread or the like compared to the case of the usual use, the new exterior trim B is fixed to the cross brace 61 by nails 63, and the extension width of the inclined surface portion 12 with respect to the fixing portion 11 is adjusted so that the distance between the inner surface of the front surface portion 15 of the waterproof member 10 and the surface of the exterior trim B is 30mm or more, the construction structure of the embodiment is easy by directly mounting the waterproof member 10 to the existing exterior wall A without using the cross brace, and rainwater or the like falling down along the front surface portion 15 is not attached to the surface of the exterior trim B because a sufficient distance is provided between the front surface portion 15 of the waterproof member 10 and the exterior trim B.

Fig. 7 is a cut-away view showing another embodiment of the construction structure of the lower portion of the opening according to the present invention, in the present embodiment, the mounting member 20 is used only when the exterior garnish B is mounted, which is different from the embodiment of fig. 6, and the other structure is the same as that of fig. 6, that is, in the present embodiment, the mounting member 20 is fixed to the wale 61 by the nails 63 in a state where the mounting member 20 is coupled and fixed to the solid portion of the exterior garnish B, thereby performing mounting of the exterior garnish B, in the present embodiment, since the surface of the exterior garnish B is protruded outside by the amount of the mounting member 20 interposed between the exterior garnish B and the wale 61, however, a sufficient distance is secured between the front surface portion 15 and the surface of the exterior garnish B by increasing the protrusion width of the slope portion 12 of the waterproof member 10.

Fig. 8 is a sectional view showing another embodiment of the construction structure of the lower side of the opening part according to the present invention, the existing window frame 50 of the embodiment shown in fig. 6 and 7 constitutes a half-peripheral window frame, however, the existing window frame 50 of fig. 8 constitutes a peripheral window frame, and the front surface of the window frame 50 is protruded outside the existing outer wall a, and even in such a case, the waterproof member 10 and the exterior finishing member B can be installed in the same manner as the embodiment shown in fig. 6 and 7, that is, the fixing part 11 of the waterproof member 10 is fixed to the existing outer wall a using the small screw 64 under the window frame 50, and the exterior finishing member B is also installed to the outer wall a through the wale 61 in the same manner as the embodiment shown in fig. 6.

FIG. 9 is a cross-sectional view showing still another example of the construction structure of the lower side portion of the opening portion of the present invention, wherein an example of the case where the existing window frame 50 is constructed as the built-in window frame is shown, and a mortar layer 72 is formed on the surface of the RC wall 71 of the existing wall W of this example, and as a modification of the existing wall W, a steel-reinforced substrate 65 is fixed from the mortar layer 72 by a small screw 62, and an exterior finishing member B is fixed to the steel-reinforced substrate 65 by a small screw 63 through a spacer 66. in this example, the waterproof member 10A is not mounted on the outer wall A, but is mounted on the lower end of the window frame 50.

The shape of the fixing portion 11 in the waterproof member 10A of the present embodiment is different from the waterproof member 10 described so far, and a horizontally projecting portion 11b is formed on the inner surface side of the fixing portion 11, the horizontally projecting portion 11b is formed by: the upper part of the fixing part 11 is folded back on the inner surface side, the front end part of the folded back part is further folded back and extended to the inner surface side of the fixing part 11 in the horizontal direction, an L-shaped angle member 68 is attached to the lower end of the sash 50, and a plate-like member of the angle member 68 is extended to the outer side in the horizontal direction, the horizontal extension part 11B of the waterproof member 10A is overlapped on the plate-like part and fixed by a screw 64, and a waterproof treatment is performed by filling a sealing material 67 thereon.

In addition, the shape of the waterproof member is not limited to the above-described example, and for example, the reinforcing folded-back portions 11a, 15a may not be formed, or in the example shown in fig. 9, the shape of the fixing portion may be changed in accordance with the structure of the portion where the waterproof member is installed so that the horizontal extending portion 11b is provided on the fixing portion 11.

Claims (8)

1. A waterproof member to be attached to a lower side portion of an opening of a building, comprising a fixing portion to be fixed to a building body side, an inclined surface portion extending obliquely downward from a lower end of the fixing portion to a surface side, and a front surface portion extending downward from a lower end of the inclined surface portion, wherein the inclined surface portion has a mechanism capable of changing an extending width with respect to the fixing portion.

2. The waterproof member according to claim 1, wherein said slope portion is formed by a 1 st slope portion connected to said fixing portion and a 2 nd slope portion connected to said front surface portion, and said mechanism is formed by having a holding portion on a lower surface side of said 1 st slope portion, said holding portion slidably holding said 2 nd slope portion between said 1 st slope portion and said 1 nd slope portion.

3. The waterproof member according to claim 2, wherein said clamping portion is constituted by a base plate portion extending from a lower end of said fixing portion on a lower surface side of said 1 st inclined surface portion, and a pressure-bonding portion formed by bending a front end of the base plate portion upward to be in pressure-bonding contact with a lower surface of said 1 st inclined surface portion, said 2 nd inclined surface portion being clamped between said pressure-bonding portion and said 1 st inclined surface portion in a state in which at least a part thereof is received between said base plate portion and said 1 st inclined surface portion.

4. The waterproof member according to claim 3, wherein a bent portion formed by bending a part of the 2 nd inclined surface portion downward is provided at a tip of the 2 nd inclined surface portion received between the substrate portion and the 1 st inclined surface portion of the sandwiching portion.

5. The waterproof member according to claim 4, wherein the vicinity of the tip of the bent portion of the 2 nd inclined surface portion is in pressure contact with the substrate portion of the sandwiching portion.

6. A construction structure of a lower part of an opening, characterized in that a new exterior finishing member is attached to an existing exterior wall as a modification of the surrounding of the opening of an existing building, and the waterproof member according to any one of claims 1 to 5 is attached to the lower part of the surrounding of the opening in a state of being fixed according to the protruding width of the inclined surface part with respect to the fixing part.

7. The structure of constructing an opening lower section according to claim 6, wherein the waterproof member is fixed to the opening lower section by fixing the fixing portion to an existing outer wall.

8. The structure of constructing a lower portion of an opening according to claim 6, wherein the waterproof member is fixed to the lower portion of the opening by fixing the fixing portion to an existing window frame.