JP2004353195A - Waterproof joint member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint member which has good workability, anti-corrosion properties, processibility, and waterproofness, is lightweight, low in cost, and sufficiently ensures the air permeability between an intra-wall ventilation layer and ambient air even when applied to a building having the intra-wall ventilation layer. <P>SOLUTION: The waterproof joint member 10 is for use in connecting between side edges of a plurality of floor plates arranged side by side, and formed of a resin bearing plate 11 and a receiving member 13. The resin bearing plate 11 bears the side edges of the floor plates which are extended and arranged between floor substrates placed across an interval, from below. The receiving member 13 is arranged below a lower surface of the resin bearing plate 11 along the side edges, and has the side edges fixed thereto via the resin bearing plate 11 by means of fixtures. According to the waterproof joint member 10, the resin bearing plate 11 has recesses 18 on both sides of the receiving member 13 in a manner extending along a longitudinal direction of the resin bearing plate 11. The recesses 18 are formed by bending the resin bearing plate 11. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a waterproof joint member suitably used for a joint portion between floor plates outdoors such as a balcony of a building, a rooftop, and a corridor of an apartment house.
[0002]
[Prior art]
FIG. 5 is a perspective view schematically showing a balcony of a building, in which a floor portion is provided at a plurality of floorboards 20 arranged side by side and at one end in the longitudinal direction of these floorboards 20, and a drain 21 is provided. The drainage gutter 22 is formed.
The floorboard 20 is usually laid on a heat insulating material 30 as shown in FIG. 6, and the heat insulating material 30 is arranged on a particle board 50 or the like via a moisture-proof paper 40. On the floorboard 20, a floor finishing material (not shown) such as artificial turf or tile is usually laid.
[0003]
Since fire protection is required for the floor plate 20 constituting such a floor portion, in general, a zinc steel plate such as a vinyl chloride resin (PVC) steel plate or a color steel plate is coated with a film or paint, and a slate is also used. A plate or the like is used, and all of these materials are distributed in a predetermined width. Therefore, as for the floor part having a certain area or more, it is necessary to use a plurality of floor boards 20 and arrange them side by side as shown in FIG.
However, when a plurality of floorboards 20 are arranged side by side in this way, there is a problem that rainwater or the like easily enters the heat insulating material 30 from a gap (joint portion) between adjacent floorboards.
[0004]
Therefore, conventionally, the side end portions 20a of the floorboard 20 are connected to each other using a joint member 60 as shown in FIGS. 7A and 7B, for example, to prevent rainwater from entering from the joint portion. I have.
The joint member 60 is made of a joint gutter 62 made of a PVC steel plate having a groove 61 formed in the longitudinal direction, and an aluminum cylinder adhered to the groove 61 of the joint gutter 62 with an acrylic double-sided tape 63. And a screw receiving member 64. In order to waterproof the joint portion using this joint member 60, first, as shown in FIG. 8, the joint member 60 is provided with a concave groove 61 between the heat insulating materials 30 provided at intervals. The side end portions of the two floor plates 20 are placed on the upper plate of the screw receiving member 64 so as to be interposed therebetween. Next, after fixing the side end portions 20a of these two floor plates 20 to the screw receiving member 64 with screws 72 via the holding plate 70 made of PVC steel plate, the joint cover 71 made of PVC steel plate is arranged.
Then, a caulking process is performed around the screw 72, and the joint portion 71 and the floor plate 20 are joined with a butyl rubber tape 73, thereby waterproofing the joint portion.
[0005]
In addition, the joint member 60 of this example has one end 62a in the longitudinal direction of the joint gutter 62 bent downward as shown in FIG. 7A, and this portion hangs down in the drain gutter 22. Be placed. Therefore, even if rainwater enters from the joint portion, the rainwater flows through the groove 61 of the joint gutter 62 and is discharged to the drain gutter 22.
Further, in the joint member 60 of this example, the other end 63 in the length direction of the joint gutter 62 is raised upward, and is disposed inside the window frame sash indicated by reference numeral 23 in FIG. Two raised ridges 65 continuous from the groove 61 are formed in the raised portion. Therefore, the building to which this joint member 60 is applied has the in-wall ventilation layer communicating with the inside of the window frame sash 23, and the front surface of the raised portion (the ridge 65 is formed). Even when the window frame sash 23 hangs down so as to be in contact with the window frame sash 23, the window frame sash 23 and the raised portion do not come into close contact with each other due to the presence of the ridges 65. As a result, It is said that communication between the air-permeable layer in the wall and the outside air is maintained, and air permeability can be maintained.
[0006]
In addition, as a method of waterproofing the joint portion, the joint body is made of a PVC steel plate or the like and has a projecting portion at a central position, and a stress absorbing water-stopping member made of butyl rubber or the like attached to both ends of the joint body. There is a method using a joint member (for example, see Patent Document 1).
[0007]
[Patent Document 1]
JP-A-9-78713
[Problems to be solved by the invention]
However, since these joint members are mostly made of steel plate, they are heavy and are liable to rust. In addition, when the bending process is performed, it is necessary to make a cut and then bend, which is troublesome. Further, the steel plate is expensive, and there is a problem in that when such a joint member is used for all the joint portions, the construction cost becomes high. Further, the steel sheet usually has irregularities due to the distribution in the form of a roll, so that the joint member formed from the steel sheet also has irregularities, and the irregularities form gaps. There is also a problem that the waterproofness is reduced.
According to the joint member 60 of FIG. 7 in particular, since the raised ridge 65 is formed in the raised portion, even when this is applied to a building having an in-wall ventilation layer, Although it is said that the air permeability between the air-permeable layer in the wall and the outside air can be maintained, it is troublesome and costly to form the ridge 65 having a height sufficient to maintain the air permeability on the steel plate. For this reason, the height of the formed ridge 65 was at most about 2 to 3 mm, and the ridge 65 having a sufficient height was not formed, and the air permeability was often insufficient.
[0009]
The present invention has been made in view of the above circumstances, and provides a joint member that is lightweight, has excellent workability, has no rust problem, is easy to process, is low in cost, and has sufficient waterproofness. Further, even when this is applied to a building having an in-wall ventilation layer, it is an object to provide a joint member that can sufficiently maintain the air permeability between the in-wall ventilation layer and the outside air. I do.
[0010]
[Means for Solving the Problems]
The waterproof joint member of the present invention is a waterproof joint member that connects side end portions of a plurality of floorboards arranged in parallel, and is bridged between floor base materials provided at intervals, and is provided under the floor. A resin support plate that supports the side edges of the plurality of floorboards arranged between the base materials from below, and is provided along the side edge on the lower surface of the resin support plate, and the side edge is provided. A receiving member fixed by a fixture via the resin support plate, a concave groove along the length direction of the resin support plate on both sides of the receiving member in the resin support plate. The resin support plate is formed by bending.
It is preferable that one end in the length direction of the resin support plate is bent upward.
Further, it is preferable that the other end in the length direction of the resin support plate is bent downward.
It is preferable that the lower surface of the resin support plate and the receiving member are joined by butyl rubber.
It is preferable that a butyl rubber layer to be joined to an upper surface of the floor base material is formed on a lower surface of both side ends of the resin support plate.
The resin support plate is preferably formed of a non-stretched polypropylene sheet.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail.
FIG. 1 is a perspective view showing one embodiment of a waterproof joint member (hereinafter, referred to as a joint member) 10 of the present invention, and FIG. 2 is a cross-sectional view taken along line AA ′ in FIG.
The joint member 10 waterproofs while connecting the side ends 20a of a plurality of floor boards 20 arranged side by side, for example, on the floor of a balcony as shown in FIG. 3) to prevent the infiltration of rainwater from the part, and as shown in FIG. 3, the insulating material (floor base material) 30 and the heat insulating material 30 There is provided a resin support plate 11 for supporting the side end portions 20a of the plurality of floor boards 20 arranged above between the 30s from below.
In FIG. 3, reference numeral 50 denotes a particle board, and reference numeral 40 denotes a moisture-proof paper. Although not shown in FIG. 3, an unillustrated floor finishing material such as artificial turf or tile is usually laid on the floor plate 20.
[0012]
Here, the resin support plate 11 is formed from a resin plate having rigidity and thickness that can be bent, and in this example, a 0.4 mm-thick unstretched polypropylene (CPP) sheet is used. The length L in FIG. 1 is set slightly longer than the length of the floor plate 20 supported by the resin support plate 11.
An adhesive layer 12 made of butyl rubber and having a thickness of about 1 mm is formed on the lower surface of both sides of the resin support plate 11, and the joint member 10 is stretched between the heat insulating materials 30. In this case, the resin support plate 11 and the heat insulating material 30 are brought into close contact with the adhesive layer 12.
[0013]
A plywood receiving member 13 having a thickness of about 10 mm and a width of about 30 mm is joined to a central portion of the lower surface of the resin support plate 11 in the width direction, as shown in FIG. A side end portion 20a of the floor plate 20 arranged on the base 11 can be fastened and fixed to the receiving member 13 via a resin support plate 11 by a fixing tool 14 such as a screw or a nail. In this example, the resin support plate 11 and the receiving member 13 are joined by an adhesive layer 15 made of butyl rubber and having a thickness of about 1 mm. 14 penetrates through the adhesive layer 15, so that the butyl rubber is entangled around the fixture 14, so that the periphery of the fixture 14 can be waterproofed.
[0014]
On the side end portion 20a of the floor plate 20 connected to the receiving member 13 by being fixed by the fixing member 14, a flat cover member 16 made of a PVC steel plate or the like is usually further provided with a butyl rubber tape. And the like. By covering the joint portion with the cover member 16 and attaching the cover member 16 and the floor panel 20 with the adhesive 17 in this manner, it is possible to prevent rainwater from entering from the joint portion. In FIG. 3, reference numeral 70 denotes a holding plate for using the fixture 14.
[0015]
On both sides of the receiving member 13 in the resin support plate 11, concave grooves 18 are formed one by one by bending the resin support plate 11 along the length direction of the resin support plate 11. ing. Therefore, by disposing the joint member 10 such that one end in the length direction is located in the drain gutter 22 formed on the floor portion of the balcony, in case rainwater intrudes from the joint portion, Even when dew condensation water is generated below the floor plate 20, the water flows along the concave groove 18 and is discharged to the drain gutter 22.
[0016]
Further, in the resin support plate 11 of this example, one end in the length direction is bent upward and the other end is bent downward. Therefore, by arranging the part bent downward so as to hang down in the drain gutter 22, rainwater and dew water flowing through the concave groove 18 are more smoothly discharged to the drain gutter 22. On the other hand, by arranging the upwardly bent portion (hereinafter referred to as a rising portion) 19 inside the window frame sash 23, for example, the building to which the joint member 10 is applied can be used as a window frame sash. 23, and has an in-wall ventilation layer communicating with the inside of the window frame 23. Even when the window frame sash 23 is hung down so as to be in contact with the front surface of the rising portion 19 (the surface on the side where the concave groove 18 is formed), Since the groove 18 is present, the entire surface of the window frame sash 23 and the rising portion 19 do not adhere to each other, and the concave groove 18 serves as a ventilation path. As a result, sufficient communication between the in-wall ventilation layer and the outside air is maintained, and the air permeability can be maintained. In particular, in the joint member 10, since the concave groove 18 is formed by bending the resin-made support plate 11 which is easy to bend, the depth can be easily and desirably set, and sufficient air permeability can be maintained. In this example, the depths D ₁ and D ₂ of the concave grooves are 10 mm and 12 mm, respectively, and when the cover member 16 is arranged, the upper surface thereof and the upper surface of the floor plate 20 are inclined so as to be flush. Is provided.
[0017]
As described above, since such a joint member 10 includes the resin support plate 11 formed of a resin plate such as a CPP sheet, the joint member 10 is lighter in weight than a conventional joint member mainly formed of a steel plate. Excellent workability, no rust problem, and inexpensive. In addition, when bending a steel plate, it is necessary to make an appropriate cut and then bend it. However, when bending a CPP sheet, the CPP sheet is formed by a steel rotary blade having a rounded tip. After inserting the annular groove into which the cutting edge is immersed into the clearance between the annular groove of the rotating roller formed on the outer peripheral surface and forming the fold by uniaxial stretching by a method of passing through, and then bending along the fold Thereby, it is possible to easily and manually bend a desired shape without making a cut. Therefore, according to the resin support plate 11 formed from the resin plate, the concave groove 18 having an arbitrary depth can be formed or both ends in the length direction can be bent easily and at low cost. In addition, since the concave groove 18 having an arbitrary depth can be formed as described above, when the joint member 10 is applied to a building having an in-wall ventilation layer, the concave groove 18 sufficiently enhances the air permeability with the outside air. Can also be maintained. FIG. 4 shows a resin plate used when the resin support plate 11 in the waterproof joint member of FIGS. 1 and 2 is formed by bending. In the figure, the broken line is a fold. By bending along such a fold, the resin support plate 11 of the joint member 10 of FIGS. 1 and 2 can be formed without making any cuts.
[0018]
In the joint member 10 of this example, the resin support plate 11 is formed from a CPP sheet as described above. The CPP sheet is lightweight, inexpensive, easy to bend, and extremely excellent in heat resistance, water resistance, weather resistance, and dimensional stability, and is therefore suitable for use in joints used outdoors. I have. The CPP sheet is obtained, for example, by forming a crystal mixture having a propylene unit of 50 mol% or more, preferably 70 mol% or more, in a non-stretched state to a uniform thickness without orientation.
The thickness of the CPP sheet is 0.4 mm in this example, but is preferably 0.3 to 0.6 mm. If it is less than 0.3 mm, the handling properties and impact resistance of the CPP sheet tend to be insufficient, and if it exceeds 0.6 mm, the bending property and the shape retention tend to decrease.
Further, as the material of the resin support plate 11, a resin plate made of non-plasticized polyvinyl chloride (PVC containing no plasticizer), polyethylene, polymer alloy, engineering plastic, or the like can be used in addition to the CPP sheet.
[0019]
Further, in this example, a plywood is illustrated as the receiving member 13 provided on the lower surface of the resin support plate 11, but any fixing member 14 such as a screw or a nail can be stably driven or screwed. There is no limitation, and for example, an aluminum cylinder, a plastic plate, a rubber plate, a synthetic wood plate, or the like may be used.
[0020]
Further, in this example, an adhesive layer 15 for joining the lower surface of the resin support plate 11 and the receiving member 13, and a floor base material such as a heat insulating material 30 formed on the lower surface of both side ends of the resin support plate 11. As the pressure-sensitive adhesive layer 12 for bonding to the upper surface, butyl rubber, which is particularly inexpensive, can reliably prevent water from entering, has good weather resistance, heat resistance, fire resistance, and the like, and is inexpensive, is used. However, besides butyl rubber, acrylic rubber, urethane rubber, hydrogenated SIS (styrene-isoprene-styrene copolymer), hydrogenated SBS (styrene-butadiene-styrene copolymer) and the like can also be used.
[0021]
These adhesive layers 12 and 15 may be formed of a tape-like material having flat surfaces on both sides, but a tape-like material in which a plurality of linear materials having a substantially circular cross section are aligned in parallel and joined to each other. Is preferably formed. In such a structure, a groove is formed between the linear bodies, and each groove acts as a water blocking groove, so that higher waterproofness is exhibited. Further, in such a structure, a convex portion is formed between adjacent grooves, and this portion is bonded to an object, so that the contact area is smaller than that of a flat surface and the same size. Even when it is pressed with a force and joined to the object, the pressure applied becomes large, and it is possible to strongly adhere. That is, the adhesiveness can be improved with a small rolling pressure.
In addition, a tape in which a plurality of linear bodies having a substantially circular cross section are aligned in parallel and joined to each other is, for example, a resin material such as butyl rubber is continuously fed from an extruder in which a plurality of bases having a substantially circular cross section are arranged side by side. Can be formed by extrusion. The extruded linear bodies are easily joined to each other to form a tape having grooves formed on both surfaces. In the illustrated example, the pressure-sensitive adhesive layer is formed by aligning linear bodies having a diameter of 1.0 mm.
[0022]
Further, in the joint member 10 of this example, the resin support plate 11 is stretched between the heat insulating materials 30 provided at intervals, but is mounted on a floor portion where the heat insulating material 30 is not provided. In the case where the particle support 50 is applied, it may be hung between the particle boards 50, and the type of floor base material over which the resin support plate 11 is hung is not limited.
[0023]
【The invention's effect】
As described above, the waterproof joint member of the present invention is lightweight, has excellent workability, has no rust problem, is easy to process, is low in cost, and has sufficient waterproofness. Therefore, it can be suitably used for joints between floorboards outdoors such as balconies of buildings, rooftops, corridors of apartment houses, and the like.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of a joint member of the present invention.
FIG. 2 is a cross-sectional view of the joint member of FIG. 1 taken along the line AA ′.
FIG. 3 is a cross-sectional view showing a state in which side end portions of a plurality of floor boards arranged in parallel are connected by the joint member of FIG. 1;
FIG. 4 is a plan view showing a resin plate for forming a resin support plate of the joint member of FIG. 1;
FIG. 5 is a perspective view schematically showing a balcony of a building.
FIG. 6 is a longitudinal sectional view showing a configuration of a floor portion of the balcony of FIG. 5;
FIG. 7A is a perspective view showing an example of a conventional joint member, and FIGS. 7B and 7B are cross-sectional views taken along line BB ′ of FIGS.
8 is a cross-sectional view showing a state in which side end portions of a plurality of floorboards arranged in parallel are connected by the joint member of FIG. 7;
[Explanation of symbols]
Reference Signs List 10 (Waterproof) joint member 11 Resin support plate 12 Adhesive layer 13 Receiving member 15 Adhesive layer 18 Groove 20 Floor plate 30 Heat insulating material (floor base material)

Claims (6)

A waterproof joint member for connecting side end portions of a plurality of floorboards arranged side by side,
A resin support plate that is bridged between flooring materials provided at intervals and supports side ends of a plurality of floorboards arranged between the flooring materials from below,
A receiving member provided on the lower surface of the resin support plate along the side end portion, the side end portion being fixed by a fixture via the resin support plate,
On both sides of the receiving member of the resin support plate, concave grooves along the length direction of the resin support plate are formed by bending the resin support plate. Joint members. The waterproof joint member according to claim 1, wherein one end in the length direction of the resin support plate is bent upward. The waterproof joint member according to claim 2, wherein the other end in the length direction of the resin support plate is bent downward. The waterproof joint member according to any one of claims 1 to 3, wherein the lower surface of the resin support plate and the receiving member are joined by an adhesive layer. The waterproof joint member according to any one of claims 1 to 4, wherein an adhesive layer that joins to an upper surface of the floor base material is formed on a lower surface of both side ends of the resin support plate. . The waterproof joint member according to any one of claims 1 to 5, wherein the resin support plate is formed of a non-stretched polypropylene sheet.

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