JP3330317B2 - Waterproof structure with drainage ditch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof structure having a drainage groove formed by a steep water slope on a waterproof base layer on which a walking floor material such as a flat roof of a concrete building is laid. .

[0002]

2. Description of the Related Art Conventionally, in various work sites using a large amount of water, such as a flat roof of a concrete building, a floor of a balcony or a veranda, a poolside, a kitchen of a cafeteria or a food factory, heat insulating materials, rigidity, etc. A waterproof structure as a waterproof base layer composed of a holding panel material and a waterproof sheet is often used, and a drain groove is provided so that water flowing in the flat part is collected at a predetermined part and drained. On the waterproof base layer having such a structure, a walking floor material made of, for example, a panel-shaped synthetic resin is laid as a surface floor material.

For example, in a flat roof of a concrete building, as shown in FIG. 9 (a), an underlayer (21) having a waterproof function is provided on an upper surface of a frame (c) made of ALC by, for example, an insulating method. It is formed by sequentially laminating a heat insulating material (22) made of a foamed resin, a rigidity retaining plate (23) made of calcium silicate, and a waterproof sheet (24) made of a soft synthetic resin by a mechanical fixing method referred to as "mechanical fixing method". At this time, the underlayer (21) near the parapet (p) on the side of the flat roof (f)
Is provided in advance with a cutout (u) for forming a drainage groove, and a gutter-like member (g) made of a resin steel plate is fitted into the cutout (u) and fixed to the frame (c) via the base layer (21). Drain (27)
And then forming the underlayer (2) including the gutter-like member (g).
1) Panel-shaped hard resin walking floor material (25) on the entire surface
And the flat roof (f) is completed. (26a) holds down the rigidity holding plate (23),
Further, a fixing device for joining the waterproof sheet (24) to the upper surface, (26b) is a fixing device for fixing the waterproof sheet (24) to the side surface of the parapet (p).
c) (26d) is a fixture for fixing the gutter-like member (g).

However, in a conventional waterproof structure having a drainage groove (27) such as a flat roof having the above structure, as shown in FIG. 9 (b), in many cases, the above-mentioned gutter-like member (g) has a complicated shape. The manufacturing often requires work on site because of the above-mentioned shape, and welding or sealing is performed so that water leakage due to poor connection or the like does not occur in the connection of the upper gutter-shaped members (g) with each other. There is a problem that high precision is required for the above work, and the work itself is not only complicated but also costly.

[0005] The present invention solves the above problems.
Using known means for a part of the structure of the waterproof underlayer of the drainage ditch, forming a portion of the underlayer where the installation of the drainage ditch is to be formed into a specific shape, and further forming a portion inside the formed drainage ditch. , Installing a member of a specific shape to support the flooring,
If the walking floor material is supported by the member, the production and waterproofing work of the member can be easily performed, and furthermore, the laying state of the walking floor material laid on the upper surface of the waterproof base material of the flat roof, especially the entire surface thereof. The present invention has been completed with a view to obtaining a waterproof structure having a drainage groove for maintaining a safe laying state without impairing the flatness of the slab.

[0006]

SUMMARY OF THE INVENTION Therefore, the present invention utilizes a waterproof underlayer in a waterproof structure in which a walking floor is laid, and uses a waterproof base layer to lay a flat portion where a walking floor is laid. Irrespective of the above, the formation of the drainage ditch can be easily and easily formed, and the floor material for walking is provided on the upper surface of the waterproof base layer to improve its flatness and walking safety, and also to make the construction work simple and easy, It is an object of the present invention to provide a waterproof structure having a drain groove that can be laid at low cost.

[0007]

SUMMARY OF THE INVENTION To solve the above-mentioned problems, the present invention provides a method for draining water from a flat portion such as a flat roof on which a floor material for walking is laid. In a waterproof structure having a drainage groove formed by forming a slope, a cross section of the drainage groove is substantially L-shaped and long inside the drainage groove.
A floor material supporting member made of a long body is installed, and the walking floor material laid above the drainage by the floor material supporting member is in contact with another walking floor material adjacent to the walking floor material. The gist of the present invention is a waterproof structure having a drainage groove, which is horizontally supported so as to be in one state. In addition, the length of the long body is set to a length that exceeds the width of the walking floor material laid on the upper surface.

[0008] Further , the present invention is characterized in that a floor material for walking is laid.
To drain water from flat areas such as flat roofs,
Drainage formed by making the slope a steep water slope
In a waterproof structure having a groove, a horizontal
A member for supporting a flooring material which has a substantially L-shaped cross section and is made of a short body.
Is installed, and the length of the floor material supporting member is at least
It is long enough to support the corners of the matching flooring at the same time,
This flooring support member lays above the drainage ditch.
Another walking floor in which the walking floor material to be used is adjacent to the walking floor material
It is necessary to support it horizontally so that it is flush with the material.
The gist is a waterproof structure having a characteristic drainage groove . The length of the short body is equal to or less than the width of the walking floor material laid on the upper surface, and is at least the length sufficient to simultaneously support at least the corners of the adjacent walking floor materials.

Further, good preferable embodiment of the invention, as described in claim 3, the upper surface of the flooring supporting member, several water passing holes double is provided, a drainage ditch It has a waterproof structure.

[0010] The construction of the waterproof underlayer in the waterproof structure of the present invention is not limited to a structure using a mechanical fixing method, and other methods such as an adhesive method and an asphalt method are also applicable. In the present invention, description will be made mainly based on a waterproof underlayer of a construction structure by a mechanical fixing method.

In this type of waterproof structure, generally, the target portion where the drain is installed is often a portion near a rising wall such as a parapet on a land roof of a concrete structure. However, in the case of the present invention, it is possible to cover not only the above-described target portion but also a drain ditch installed near the center of a flat land roof which is always subjected to a walking load.

The floor material for walking used in the present invention is generally laid on a walking surface such as a conventional flat roof.
A rigid panel-like floor material is mainly used. The floor material is a material serving as a base material thereof, for example, cement mortar,
It is a panel-shaped block body in which various surface geometric members whose surface heights are flush with each other are provided on the upper surface of a panel made of a hard material such as wood or hard synthetic resin. The surface material is made of wood, tile, rubber, synthetic resin or the like, and the floor material used in the present invention may be any of them.

As described above, a part of the structure of the waterproof underlayer according to the present invention includes, as described above, a steep slope toward the parapet and a further downward slope on the underlayer near the parapet on the flat roof. An underlayer structure based on a known means, which is a structure of an underlayer constituting a drainage groove, is used. An example of the structure of the underlayer is disclosed in JP-A-4-52.
358 (known example 1) and JP-A-5-31819 (known example 2).

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described.
The embodiment will be described with reference to the drawings.

FIG. 1 is a sectional view showing a typical embodiment of the present invention. (F) is a flat roof of a concrete building, in which a waterproof underlayer (1) is formed on the upper surface of a frame (C) made of ALC by a mechanical fixing method, and a panel-like walking surface is further formed on the upper surface. The floor material (5) is constructed by being spread. Reference numeral (7) denotes a drain ditch, which is provided on the upper surface of the waterproof underlayer (1) near the plastic (P) provided on the side of the flat roof (F).

In this case, the heat insulating material (2) made of a foamed resin disposed at the bottom of the drain groove (7) installed on the upper surface of the frame (C) is the same as that described in the above-mentioned known example 1 or 2. A resin foam having a steep water gradient and substantially the same shape and substantially the same material as the foamed resin material can be used, and the surface thereof faces toward the plastic (P) or What is formed in a shape having a downward slope in both directions between the pet (P) and the downstream of the drain (7) is used.

The waterproof base layer (1) comprises a foamed resin heat insulating material (2) on the upper surface of the frame (C) and a rigidity retaining plate (3) made of, for example, calcium silicate on the upper surface.
Are laminated, and a waterproof sheet (4) made of a soft synthetic resin is further placed thereon by a fixing tool (6a) via a fixing plate (6) and in accordance with an ordinary method of a mechanical fixing method.
′) And is fixed to the skeleton (C) and the parapet (P) by a fixture (6b).

As shown in FIGS. 1 and 2, the cross-sectional shape of the fixing plate (6 ') is parallel to the inclined surface (n) of the heat insulating material (2a) having a steep water gradient. For example, a resin steel plate bent at an inner angle (θ) along the inner surface of the parapet (P) is applied.

Next, a floor material support is provided inside the drain groove (7) of the waterproof base layer (1) formed by the heat insulating material (2a), the rigidity retaining plate (3) and the waterproof sheet (4). And a panel-like walking floor member (5a) is laid on the upper surface thereof so as to be level with at least the adjacent walking floor member (5b) so as to be leveled and supported. Then, the construction of the waterproof structure having the drain groove (7) is completed.

In the present invention, as shown in FIG. 1, the floor member supporting member (8) has a substantially L-shaped cross section, and is a walking floor member supported by its upper surface (m). (5a) is formed so as to be flush with the adjacent walking floor material (5b), and then installed in the drainage groove (7). As the material of the flooring supporting member (8), for example, a hard thermoplastic resin molded body that is extrusion-molded into a predetermined shape or bent from a plate is preferably used. Usually, a thickness of about 5 mm is applied, but it is possible to appropriately change the thickness in consideration of a walking load or the like.

Further, the floor material supporting member (8) is adjusted in accordance with the downward inclination of the drainage groove (7) within a range that does not impair the flatness of the walking floor material (5) laid on the upper part. Needless to say, the height can be adjusted. As the means for such adjustment, any means such as a change in the shape of the floor material supporting member (8) itself or the use of a height adjusting compensation plate (not shown) can be applied.

Next, the member (8) for supporting a floor material according to the present invention.
An embodiment according to a modification of the embodiment will be described below. Incidentally, FIG. 3 to FIG. 5 shows the case where the cross-sectional shape of a substantially L-shaped.

First, FIG. 3A is a cross section of a waterproof structure constructed using a floor material supporting member (8a) according to a first modification, and FIG. As shown in FIG. 3 (b), the shape is a short folded side (v) on the upper side of a steep water gradient slope toward the parapet (P).
And a substantially L-shaped elongated body having a long folded side (w) on the lower side. In this embodiment, the positioning on the upper and lower sides of the water slope is particularly clear. Further, if the material is selected from synthetic resin, the bonding with the waterproof layer (4) on the surface of the base layer (1) can be easily and reliably performed by, for example, an adhesion method, and the upper surface of the floor material supporting member (8a) can be bonded. Since the width can be made smaller than that of the floor material supporting member (8), the bulk is reduced.

FIG. 4 shows a second modification, which is a floor material supporting member (8b) which is exactly the same as the floor material supporting member (8a) except that the length is short. The length is at least enough to simultaneously support the corners (s) (s ′) of the adjacent walking floor materials (5) (5 ′), for example, the upper surface of the floor material supporting member (8b). The width is preferably about 2 to 3 times the width. This embodiment is the same as the first modification in that the surface of the underlayer (1) can be easily and reliably joined to the waterproof layer (4) as in the first modification, but in addition, the length is short. Because of this, the bulk is smaller, the portability and installation work are further facilitated, and the installation according to the length of the walking floor material (5) can be particularly easily performed.

FIG. 5 shows a third modification, wherein the floor material supporting members (8), (8a) shown in FIGS. 1, 3 and 4 have a substantially L-shaped cross section. And (8b) the floor member supporting member (8c) similar to (8b), and the upper surface (m) thereof.
Are provided with a plurality of water holes (h). In this embodiment, the water flowing on the back surface of the walking floor (5) has a role of flowing down into the drain (7) .

FIG. 6 shows a fourth modification, in which at least one end of the floor material supporting member (8a ) of the first modification is moved in the width direction. The cross section is about 45 inward and downward
It is assumed that the shape is cut at an angle (β) of about degree . Or cull edge shape and has been the flooring supporting member serves to improve the flow of waste water drainage groove (7).

According to the present invention, as described above, the installation site of the drain ditch is not only near the wall surface of the parapet (P) or the like, but also near the center of a flat land roof which is always subjected to a walking load. It is possible. An embodiment of a waterproof structure having a drainage groove in a flat roof with a flat portion which is always subjected to a walking load will be described below with reference to the drawings showing examples.

FIG. 7 is a sectional view showing a waterproof structure having a drainage groove near the center of a flat flat roof. (F ')
Is a flat roof of a concrete building, a waterproof base layer (1) is formed on the upper surface of an ALC frame (C) by a mechanical fixing method, and a panel-like walking floor material ( 5) is constructed by being laid.
(17) is a drainage ditch, and in the central part (A),
After the left and right heat insulators (2a) and (2a) are arranged with the lower ends of the steeply inclined surface (n) abutting each other, a rigid holding plate (3) is further provided on the upper surface thereof, and further a mechanical fixing method. The waterproof sheet (4) is sequentially laminated via the fixing plate (16) according to the conventional method, and is fixed to the upper surface of the frame (C) to form a drain groove (17).

Next, the two floor material supporting members (8a) and (8a) of the first modified example are back-to-back on the inner surface of the drain groove (17) so that the cross-section becomes inverted palm-shape. The pedestrian flooring (5) is placed on the upper surface, and the pedestrian flooring (5) and the adjacent pedestrian flooring (5) are flush with each other. The construction of the waterproof structure having the drain groove (17) is completed.

In this case, the floor material supporting members (8), (8b), (8) are not limited to the floor material supporting members (8a).
The c), it may be placed back to back in the same state as shown in FIG.

Further, the member for supporting flooring of this embodiment is
As shown in FIG. 8 (a) or (b ), the cross section is
In the fifth modified example, a substantially one-character flooring supporting member (8
e) In the sixth modification, a substantially T-shaped flooring supporting member (8)
As shown in f ), it may be integrally formed in a symmetrical shape that straddles the central portion (A) of the drain groove (17).
The floor material for walking (5) supported by the upper surfaces (m) and (m ') is flush with the adjacent walking floor materials (5) and (5), and is drained so as to be supported horizontally. It is installed in the groove (17). The shape, material, forming method, and the like of the flooring supporting member in this embodiment can be appropriately changed in consideration of the walking load and the like, similarly to the flooring supporting members (8) to ( 8c ). Needless to say,

[0032]

FIG. 3 shows a waterproof structure having a target drainage groove.
The waterproof structure by the mechanical fixing method shown in (a) was adopted. The floor member supporting member (8a) of the first modified example having the shape shown in FIG. 3B was applied as the floor member supporting member.
The downward slope of the drainage ditch (7) is 10 degrees at the deepest part.
It was 6/00.

The floor member supporting member (8a) has a length of 1 m, a thickness (r1) of 4.0 mm, and an upper surface (m ') width (r2).
50 mm, and the folding side (v) width (r3) is 14 at the upstream end.
mm, 18 mm at the downstream end, and the folded side (w) width (r
4) is set at 18 mm at the upstream end, 21 mm at the upstream end, and 27 mm at the downstream end, extruding a hard vinyl chloride resin and cutting it from a long body to a length of 1 m. Corrected to shape.

The obtained floor material supporting member (8
a) The floor material supporting members installed adjacent to the upstream and downstream sides include a walking floor material laid on the upper surface thereof and a walking floor material (5) laid on the upper surface of the floor material supporting member (8a). ) Were formed by setting the height dimension according to the shape of the drain groove (7) by the same procedure as described above so that they were flush with each other and supported horizontally.

Further, as shown in FIG. 6 (a), both ends of the floor material supporting member (8a) are cut so that the cross section in the width direction is downwardly inward at an angle (β) of 45 degrees. did.

Next, the floor material supporting member (8a) obtained as described above, together with the floor material supporting member to be installed adjacently, is placed along the drain groove (7) as shown in FIG. And a panel-like walking floor material (5) was laid thereon to complete construction of a waterproof structure having a drainage ditch. In the construction work, the construction member can be more easily produced than in the case where the conventional gutter-like member is installed, and the construction work is easy.

In the obtained waterproof structure, the walking floor material (5) laid on the upper part of the drain groove (7) is surely flush with the other walking floor material adjacent thereto and supported. It was done. Moreover, the laid walking floor material (5) was laid reliably without moving unnecessarily even when walking on it.

[0038]

As described above, the waterproof structure having the drainage groove according to the present invention has a structure in which a part of the underlayer is steeply inclined in order to drain water from a flat portion such as a flat roof on which a walking floor material is laid. In a waterproof structure having a drain groove formed by forming a water gradient slope, inside the drain groove, a cross-sectional shape is
A floor material supporting member made of a substantially L-shaped and elongated body is installed, and the floor material for walking laid by the floor material supporting member above the drainage ditch is adjacent to the walking floor material. The structure is such that it is horizontally supported so as to be flush with the floor material for walking , or the inside of the drainage groove has a substantially L-shaped cross section.
A floor material supporting member made of a short body is installed in the floor material supporting member.
The length of the flooring members should be at least
It is long enough to support at times, and this flooring support member
Therefore, the walking floor material laid above the drainage ditch is
It will be flush with other walking floors adjacent to the rowing floor
As described above , the drainage ditch can be easily formed by using the waterproof base layer on the walking floor at an arbitrary position in the waterproof structure in which the walking floor material is laid. At the same time, the flooring support member installed on the inner surface of the drainage ditch,
The floor can be leveled and supported so that it is flush with the adjacent walking floor material, and the flatness of the entire floor surface of the walking floor material can be accurately secured, and the walking safety of the walking floor material can be improved. There is an effect that a waterproof structure having an increased drain can be constructed.

In particular, in the present invention, it is not necessary to use a specific member having a complicated shape such as a gutter-like member for the drainage as in the prior art, and it is not necessary to perform complicated and highly accurate construction work for connection. Therefore, there is a great advantage that the construction work can be performed very efficiently, the construction of the waterproof structure having the drainage groove can be made extremely easy, and the cost can be reduced.

Further, since the floor material supporting member of the present invention can be made of synthetic resin, when the waterproof sheet on the inner surface of the drain groove is made of synthetic resin, it is easily fixed and installed by the bonding method. This makes it possible to perform the construction work extremely easily.

[0041] Further, in the present invention is obtained by the transverse cross-sectional shape of the floor member supporting member with a substantially L-shaped, its
There is an advantage that not only the shape is extremely simple and the manufacturing is easy, but also the work of fixing and installing the device in the drain is easy. In addition, since the length of the molded body can be freely selected to be long or short, there is also an advantage that production suitable for the site is easy.

[0042] Furthermore, of falling when the water passing hole upper surface into several multiple of the flooring supporting member is provided, the transmitted stream to the backside of the walking flooring water, quickly drained groove so there is an effect that Ru obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a typical embodiment of a waterproof structure having a drain groove according to the present invention.

FIG. 2 is a partial perspective view showing an arrangement state of a fixing plate shown in FIG.

3A and 3B are diagrams showing a first modification of the floor material supporting member according to the present invention. FIG. 3A shows an arrangement state of the floor material supporting member, and FIG. It is a partial perspective view of the member for use.

FIG. 4 is a partial perspective view showing a second modification of the floor member supporting member of the present invention.

FIG. 5 is a partial perspective view showing a third modified example of the floor material supporting member.

6 is a drawing showing a fourth modification of the floor member supporting member, and is a partial perspective view showing a modification example of the floor member supporting member shown in FIG. 3 (b).

FIG. 7 is a cross-sectional view showing another embodiment of the waterproof structure having a drain groove according to the present invention.

8 is a view showing an arrangement state of a modified example of the floor member supporting member shown in FIG. 7 ; FIG. 8 (a) shows a fifth modified example, and FIG. 8 (b) shows a sixth modified example . shown to a cross-sectional view showing the arrangement of each.

[9] The waterproof structure having a drainage ditch, a cross-sectional view for explaining a conventional example, the cross-sectional view of a waterproof structure with 9 (b) are drains, 9 (b) is 9 ( It is a partial perspective view which shows the form of the gutter-shaped member shown to a ) .

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Waterproof base layer 2, 2a ... Insulation material 3 ... Rigid holding plate 4 ... Waterproof sheet 5 ... Walking floor material 6, 6 ', 16 ... Fixed plate 7, 17 ... Drainage groove 8, 8a-g ... Floor material Supporting members A: Central part C: Frame F, F ': Flat roof P: Parapet

Claims (3)

(57) [Claims] 1. A waterproof structure having a drainage groove formed by forming a part of an underlayer into a steep water slope in order to drain water from a flat portion such as a flat roof on which a floor material for walking is laid. In the inside of the drainage ditch, the shape of the cross section is substantially L-shaped and a long body
A flooring supporting member comprising: a flooring supporting member laid above the drainage channel by the flooring supporting member is flush with another walking flooring member adjacent to the walking flooring member. A waterproof structure having a drainage groove, characterized in that it is horizontally supported and compensated so as to provide a drain. 2. A waterproof structure having a drainage groove formed by forming a part of an underlayer into a steep water slope in order to drain water from a flat portion such as a flat roof on which a floor material for walking is laid. In the inside of the drainage ditch, the cross section is substantially L-shaped and a short body
A flooring support member comprising:
Length simultaneously supports at least corners of adjacent flooring
This walking material is sufficient to make the walking material laid above the drainage groove flush with other walking materials adjacent to the walking material. A waterproof structure having a drainage ditch characterized by being horizontally supported and adjusted. 3. A waterproof structure having a drainage ditch according to the upper surface of the flooring supporting member, to claim 1 or 2 a plurality of water passing holes are provided.