JP3748873B2 - Structure of the rising wall of the waterproof sheet - Google Patents

Description

  The present invention relates to a structure for storing a rising wall surface of a waterproof sheet for preventing deterioration of a sealant in a parapet portion of a building and improving the service life of the waterproof sheet.

FIG. 8 is a partial cross-sectional view showing a waterproofing method in a parapet portion of a conventional building.
In FIG. 8, reference numeral 1 denotes a waterproof layer such as a waterproof sheet, which is attached along the inner surface of the wall 3 rising from a floor surface (not shown).

  And the upper part 1a of the waterproofing layer 1 is fixed to the ground concrete which comprises the wall 3 with the pressing metal 2 with the fasteners 1b, such as a screw, and after providing the backup material 5 on the surface side of this fastener 1b, the sealing agent 4 is provided. In general, the gap between the wall surface 3 and the presser hardware 2 is waterproofed (Patent Document 1).

  However, since this type of waterproof surface is exposed to the atmosphere of the sealing agent 4, it is exposed to wind and rain and sunlight and is affected by ultraviolet rays and ozone. Cracks occur.

For this reason, for example, water tightness is lost in about 10 years, rainwater penetrates, and the waterproof function is remarkably lost.
By the way, in recent years, a residential building is required to have a useful life of 31 to 50 years, and the trend is such that a house is sold with a phrase such as a 100-year house.

Therefore, durability is required for the waterproofing of the roof portion as described above, which has conventionally been difficult to waterproof.
In order to satisfy such a requirement, the applicant of the present application has proposed a waterproof terminal processing structure as shown in FIG.

  For the purpose of preventing aged deterioration of the sealing part, the rising of the waterproof sheet 23 laid along the rising wall 21 of the parapet part provided around the roof surface 20 of the roof and having the caps 22 and the like formed on the upper part thereof. The sealing agent 24 placed on the end of the portion 23a along the wall 21 is shielded from the outside air and sunlight by pressing the terminal pressing member 25, and the sealing agent 35 is filled on the upper portion of the terminal pressing member 25, The outer surface is sealed with the upper piece 30a of the cover member 30 snap-fitted and attached to the terminal pressing member 25 by the fitting portion 29, and the space between the lower piece 30b and the terminal pressing member 25 is sealed as shown by an imaginary line. Filling agent 36 and sealing including fasteners 26 shields sealing agents 24, 35, and 36 from the outside air and sunlight and suppresses aging degradation. Those (Patent Document 2).

Further, as shown in FIG. 10 as a structure similar to this, the box joint 10 is formed on the rising wall 21 of the parapet part, the base 25a of the pressing member 25 is inserted therein, and the sealing agent 35 is placed on this part, It is conceivable that the cover member 30 is sealed with the upper piece 30a, the sealing agent 35 is cut off from the sun rays, and the deterioration over time is suppressed.
JP-A-5-302414 JP 2003-293528 A

  With this configuration, the deterioration of the sealing agents 24, 35, and 36 due to the outside air and ultraviolet rays has been considerably improved. However, as shown in the drawing, the recessed portion 16 and the figure serving as a portion for accommodating the waterproof sheet on the rising wall 21 of the parapet portion are illustrated. As shown in FIG. 10, the box joint 10 in which the terminal pressing member 25 is accommodated is formed, and in addition, a large number of holes for inserting the fastening members 26 such as screws must be drilled at necessary places, so that the construction is very troublesome. There was such a problem.

  The present invention has been made to solve such problems, and has an object to prevent deterioration of the waterproof sealant, dramatically improve the service life of the waterproof sheet, and easily perform the construction. .

  The structure for storing the rising wall surface of the waterproof sheet according to the present invention is such that a waterproof sheet is laid along the rising wall surface of the parapet part from the floor surface, and a box joint is formed in the horizontal direction along the upper edge of the waterproof sheet. A substrate is inserted into the box joint, the inside of the box joint is filled with a sealing agent, and the opening is closed with a lid member to fix the substrate, and the substrate is fixed along the surface of the waterproof sheet. An inner hanging piece that hangs down and an outer hanging piece that hangs down from the outer edge of the substrate in parallel with the inner hanging piece are integrally formed, and the surface of the waterproof sheet that extends below the inner hanging piece and the inner side of the outer hanging piece Is filled with a sealing agent, and the lower surface of the sealing agent from the surface of the waterproof sheet to the lower edge of the outer hanging piece is sealed with a lid member.

In this way, by covering the sealing agent for waterproofing with the cover material, it is shielded from the effects of ultraviolet rays, ozone, and rain and wind, and the durability of the sealing agent is improved.
Further, when attaching the mold material to the wall surface, it is only necessary to form one box joint on the side surface of the rising wall, so that the construction is also simplified.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a cross-sectional view of an essential part of a parapet part of a building representing an embodiment of the present invention.
In the figure, 20 indicates a floor surface on the roof, and 21 indicates a rising wall standing from the outer periphery of the floor surface 20. In addition, although a headboard etc. may be provided in the upper part of the standing wall 21, illustration is abbreviate | omitted.

  A waterproof sheet 23 is laid on the floor 20, and the waterproof sheet 23 is formed as a rising portion 23 a along the inner surface of the rising wall 21, and these are attached to the floor 20 and the rising wall 21. The waterproof sheets 23 and 23a are made of various materials such as vinyl chloride, polyolefin resin, butyl rubber, and asphalt. Generally, the method of attaching the waterproof sheets 23 and 23a to the floor 20 and the inner surface of the rising wall 21 includes applying an adhesive directly to the base concrete and the waterproof sheets 23 and 23a and attaching the base concrete to the base concrete. Although there is an insulation method that does not directly bond, the present invention can be applied to any method.

And the recessed groove | channel which continues in a horizontal direction at the standing wall 21 along the terminal 23b of the waterproof sheet 23a is formed as the box joint 10. As shown in FIG.
The box joint 10 is formed by excavation along the terminal 23b after laying the waterproof sheet 23a.

Note that the depth B of the box joint 10 is set to a depth that does not impair the strength of the concrete body constituting the rising wall 21.
And after throwing away the sealing agent 11 along the upper edge 23b of the waterproof sheet 23, the board | substrate 27 is inserted and fixed to the box joint 10. As shown in FIG.

  On the lower surface side of the substrate 27, an inner hanging piece 28 hanging down to the surface side of the waterproof sheet 23a and an outer hanging piece 29 hanging from the outer edge of the substrate 27 in parallel with the inner hanging piece 28 are integrally formed. Both the drooping piece 28 and the outer drooping piece 29 are formed as a die material integrally formed by drawing or the like made of an aluminum light alloy.

  Then, the tip portion of the substrate 27 inserted into the box joint 10 is folded upward in a “L” shape, and the tip of the folded portion 30 at no load rises beyond the width Y of the box joint 10. When folded into the box joint 10, the folded portion 30 is elastically press-fitted to the upper inner surface.

And the protrusion 31 is formed in the surface which contacts the box joint 10 upper side inner surface 10a of this folding | returning part 30 so that it may become resistance at the time of withdrawal.
The box joint 10 into which the substrate 27 is inserted is filled with a sealing agent 24 and is sealed so that rainwater does not flow into the box joint 10.

  In addition, a lid member 32 that covers the raised sealing agent 24 is attached to the opening of the box joint 10, and the sealing agent 24 is placed in a state where the engaging protrusion 33 a protruding from the inner surface is embedded in the sealing agent 24. The cover member 32a is fixedly supported by being cured, and the sealing member 24 is configured to be shielded from outside air and sunlight by the cover member 32a.

The lid member 32a is also made of a material excellent in weather resistance, for example, an aluminum light alloy pultruded molded body.
The space between the surface of the waterproof sheet 23a at the rising portion and the outer hanging piece 29 is filled with a sealant 35 by placing a backup material 34 in the back, and the lower surface of the sealant 35 is exposed from the surface of the waterproof sheet 23a. A lid member 32b is provided by connecting the lower end of the outer drooping piece 29, and the lid member 32b is also fixed by being cured in a state where the engaging protrusion 33b projecting on the inner surface is embedded in the sealant 35. The sealing agent 35 is supported and shielded from the outside air and sunlight by the lid member 32b.

  Therefore, according to this configuration, the sealing agents 24 and 35 for sealing the upper edge of the waterproof sheet 23a are prevented from being deteriorated by drying or ultraviolet rays, and good sealing performance is maintained for a long time.

  For the sake of explanation, the size of each constituent member in the cross section is exaggerated slightly. For example, the thickness of the waterproof sheets 23 and 23a is 2 to 3 mm, the substrate 27, the inner hanging piece 28, and the outer hanging piece 29. The thickness is also 2 to 3 mm.

  1 and 2, the substrate 27 is continuous in a direction perpendicular to the figure but has a fixed length. Therefore, if the rising wall 21 is longer than this, it is necessary to connect the substrate 27. .

  When the connecting portion is simply brought together as shown in FIG. 3, rainwater permeates from the abutting portion 27 a, so that the surface of the abutting portion 27 a of the substrates 27, 27 arranged in the connection extends over both the substrates 27, 27. It is covered with a joiner hardware 37 having an L-shaped cross section having a width.

  As shown in FIGS. 1 and 2, the joiner hardware 37 is formed such that the thickness of the tip 38 a of the horizontal piece 38 is increased in a smooth curve, and the tip 38 a of the horizontal piece 38 is forced to the substrate folding portion 30. The folded portion 30 of the substrate 26 is configured to be pressed against the inner surface of the horizontal box joint 10. Further, projections 30a and 30a that engage with the thick part of the tip 38a of the horizontal piece 38 are provided on the inner surface of the folded portion 30, and if the tip 38a of the joiner hardware 37 is inserted beyond this, the projections 30a and 30a The joiner hardware 37 is fixed so as not to easily come off.

  Further, the sealant 24 is placed on the portion of the horizontal piece 38 to be inserted into the box joint 10, and the sealant 24 a is also placed on the upper surfaces of the substrates 27 and 27, and the horizontal piece 38 of the joiner hardware 37 is overlapped. 27a is configured to be surely sealed.

  Further, the portion of the horizontal piece 38 inserted into the box joint 10 is covered with a lid member 32a. Further, the lower end of the vertical piece 39 is received and fixed by a receiving portion 40 formed on the outer surface of the outer hanging piece 29.

  In order to secure the fixing of the substrate 27 to the box joint 10, as shown in FIG. 3, the tip similar to the horizontal piece 38 of the joiner metal fitting 37 is directed toward the substrate folding portion 30 in the box joint 10 as shown in FIG. 3. A pin 38p having a shape may be inserted, and the contact pressure of the folded piece 30 against the inside of the box joint 10 may be increased by the tip bulge portion 38q.

  FIG. 4 is a cross-sectional view of a structure for housing a rising wall of a waterproof sheet according to another embodiment. A lid member 32b is integrated with a lower portion of an outer hanging piece 29 formed integrally with the substrate 27 via a constricted portion 29a. Is provided. Similarly, the joiner hardware 37 is also provided with an extension 41 along the lid member 32b via a constriction 39a at the lower end of the vertical piece 39, and the extension 41 covers the lower surface of the joint of the outer vertical piece 29. Has been.

  In addition, as shown in the partial enlarged view on the lower outer surface of the outer vertical piece 29, a protrusion 42 having a bulging tip is provided, and the engagement protrusions facing each other are formed on the inner surface of the vertical piece 39 of the joiner hardware 37 corresponding thereto. Ribs 43, 43 having strips 43 a, 43 a are provided, and the joiner hardware 37 is fixed to the outer vertical piece 29 by snapping together.

  Further, the tip 38a of the horizontal piece 38 of the joiner metal piece 37 is formed with a concave portion 44 ... on the upper surface so as to be engaged with the protrusion 30a formed on the inner surface of the turned-up portion 30, and the turned-up portion by the pushed-in tip 38a. At the same time as 30 is expanded, the protrusion 30a engages with the recess 44, and both are configured to be difficult to come out of the box joint 10.

Since the other components are the same as those described above, the same parts are denoted by the same reference numerals and detailed description thereof is omitted.
FIG. 5 shows a structure for storing the rising wall surface of the waterproof sheet according to another embodiment. The lid member 32b at the lower end of the outer hanging piece 29 integrally formed on the substrate 27, and the extension part at the lower end of the vertical piece 39 of the joiner hardware 37 are shown. 41 is the same, but a protrusion 42 having a bulging tip and a rib 43, 43 having engaging protrusions 43a, 43a corresponding to the protrusions 42, which snap-lock these members, are extended with the lid member 32b, respectively. This is provided on the tip side of the portion 41.

  In addition, as shown in the constricted portion 39a in the partially enlarged view, the wall thickness is intermittently formed as a cross-sectional shape of the constricted portion 29a at the lower end portion of the outer hanging piece 29 and the constricted portion 39a at the lower end portion of the vertical piece 39 of the joiner hardware 37. It is good also as a form to change.

  Further, a receiving portion 45 for receiving the tip 38a of the horizontal piece 38 of the joiner hardware 37 is formed in the intermediate portion of the substrate 27, and the receiving portion 45 of the joiner hardware 37 and the engaging portion 30 of the substrate 27 with respect to the box joint 10 are separated. It is provided.

In this embodiment, the box joint 10 at the tip of the substrate 27 is filled with an adhesive such as an epoxy resin.
Since the other components are the same as those described above, the same parts are denoted by the same reference numerals and detailed description thereof is omitted.

  FIG. 6 shows a structure for storing the rising wall surface of the waterproof sheet according to still another embodiment. Instead of the folded portion 30 at the tip of the substrate 27 in the embodiment shown in FIG. It is what. Since the other components are the same as those described above, the same parts are denoted by the same reference numerals and detailed description thereof is omitted.

  FIG. 7 is a cross-sectional view showing a structure for storing a rising wall surface of a waterproof sheet according to still another embodiment. A lid member 32b at the lower end of the outer hanging piece 29 provided at the tip of the substrate 27 is formed below the outer hanging piece 29. Two engaging protrusions 33b and 33b extending into the sealing agent 35 are further provided, and the lower end of the vertical piece 39 of the joiner metal piece 37 is a receiving portion 40 at the lower end of the outer drooping piece of the mold member 26. It is comprised so that it may latch on.

  Further, a receiving portion 45 for receiving the tip of the horizontal piece 38 of the joiner hardware 37 is formed in the intermediate portion of the substrate 27, and the receiving portion 45 for the joiner hardware 37 and the engaging portion 48 for the box joint 10 of the substrate 27 are provided separately. It is a thing.

  In the housing structure of the rising wall surface of the waterproof sheet of this embodiment, the engaging portion 48 at the tip of the substrate 27 is a bulging portion 49 having a tapered surface that gradually decreases in thickness toward the tip, and is formed on the surface thereof. When inserted into the box joint 10, a leaf spring-like elastic member 50 formed in a wave shape as shown in the drawing is attached to the upper inner surface.

  Therefore, in the case of the structure for housing the rising wall surface of the waterproof sheet according to this embodiment, if the tip of the substrate 27 is inserted into the box joint 10, the leaf spring-like elastic member 50 is press-fitted into the box joint 10 and easily It is held so as not to come out.

Also in this embodiment, the box joint 10 at the tip of the substrate 27 is filled with an adhesive such as an epoxy resin.
As described above, the structure for storing the rising wall surface of the waterproof sheet according to some embodiments has been shown. The shape of the tip of the substrate 27 with respect to the box joint 10 and the structure of the engagement relationship of the outer hanging piece 29 with respect to the lid member 32b are as follows. Needless to say, the combinations shown in the drawings are not necessarily required, and arbitrary combinations can be made as necessary.

It is sectional drawing of the storage structure of the standing wall surface of the waterproof sheet which is embodiment of this invention. It is a principal part enlarged view of FIG. It is a perspective view of the stowed wall storage structure of the waterproof sheet shown in FIG. It is sectional drawing of the storage structure of the standing wall surface of the waterproof sheet which is other embodiment of this invention. It is sectional drawing of the storage structure of the standing wall surface of the waterproof sheet which is further another embodiment of this invention. It is sectional drawing of the storage structure of the standing wall surface of the waterproof sheet which is further another embodiment of this invention. It is principal part sectional drawing of the storage structure of the standing wall surface of the waterproof sheet which is further another embodiment of this invention. It is explanatory sectional drawing of the storage structure of the standing wall surface of the conventional waterproof sheet. It is explanatory drawing sectional drawing of the accommodation structure of the standing wall surface of another conventional waterproof sheet. Furthermore, it is explanatory sectional drawing of the storing structure of the standing wall surface of another conventional waterproof sheet.

Explanation of symbols

20 rooftop surface 21 rising wall 23 waterproof sheet 24 sealing material 25 presser foot 27 substrate 28 inner hanging piece 29 outer hanging piece 30 folded portion 31 ridge 32a lid member 32b lid member 33a engagement ridge 33b engagement ridge 35 seal Agent 37 Joiner hardware 38 Horizontal piece 38a Tip 39 Vertical piece 40 Receiving part 41 Extension part

Claims (5)

A waterproof sheet is laid along the rising wall surface of the parapet part from the floor surface, a box joint is formed in the horizontal direction on the wall surface along the upper edge of the waterproof sheet, and a substrate is inserted into the box joint and sealed The substrate is fixed by being filled with an agent, the sealing agent facing the opening of the box joint is closed with a lid member, and an inner hanging piece that hangs along the waterproof sheet surface and the inner hanging piece on the substrate An outer hanging piece that is suspended from the outer edge of the substrate is formed in one piece in parallel with the piece, and a space between the surface of the waterproof sheet that extends below the inner hanging piece and the inside of the outer hanging piece is filled with a sealing agent. A structure for storing a rising wall surface of the waterproof sheet, wherein a bottom surface of the sealant from the surface of the waterproof sheet to the lower edge of the outer hanging piece is sealed with a lid member. In the storage structure of the rising wall surface of the waterproof sheet according to claim 1, the insertion end of the substrate to be inserted and fixed to the box joint formed on the wall surface is folded back toward the upper inner surface of the horizontal groove from the front end. A structure for storing a rising wall surface of a waterproof sheet held in the box joint so that the substrate does not come out due to the restoring elasticity of the folded portion. 3. The rising wall structure of the waterproof sheet according to claim 2, wherein the abutting portion of the substrates connected along the wall surface has a width extending over both substrates and has an L-shaped cross section, and the thickness of the tip of the horizontal piece is The tip of the horizontal piece of the joiner hardware covered with the thickened joiner hardware is forcibly inserted into the substrate folded portion of the mold material, and the folded portion of the mold material is pressed against the inner surface of the horizontal groove by the insertion. The structure of the rising wall of the waterproof sheet. In the structure for storing the rising wall surface of the waterproof sheet according to claim 2 or 3, a pin having a diameter-enlarged portion at the tip is forcibly inserted at appropriate intervals toward the substrate folded portion inserted into the box joint, A structure for storing a rising wall surface of a waterproof sheet in which a folded portion of the mold member is pressed against an inner surface of a horizontal groove by insertion. 2. The rising wall structure of the waterproof sheet according to claim 1, wherein a substrate end inserted into a box joint formed on the wall surface is thinner than a vertical width of the horizontal groove and is tapered in a tip direction. A structure for storing a rising wall surface of a waterproof sheet, which is a thick portion, and a leaf spring-like elastic member that is in pressure contact with the inner surface of the horizontal groove is provided on the surface of the thick portion.

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