JP2007063750A - Water-proof sheet fixing structure as well as fixing plate and fixture to be used for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide water-proof sheet fixing structure suitable particularly for a base isolation method using panel members to reduce vibration with a floor surface and wall faces to be independently operated and superior in working efficiency and economy during construction while maintaining water-proofing performance for a long period of time, as well as a fixing plate and a fixture to be used for the same. <P>SOLUTION: In the water-proof fixing structure, the sectionally L-shaped fixing plate, which consists of a floor side flange piece 1a and a wall side flange piece 1b and which has a fixture hole in one of the flange pieces, is arranged at the corner of a body constituted by the panel members. The fixture 3 is inserted into the fixture hole to fix the fixing plate. A water-proof sheet is placed on the upper face of the fixing plate, and a required portion of the fixing plate is joined to that of the water-proof sheet to fix the water-proof sheet. The fixture hole in both or one of the floor side flange piece and the wall side flange piece is a loose hole or an oblong hole 2a. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a waterproof sheet fixing structure and a fixing plate and a fixture used therefor, which are made when a waterproof sheet is laid by an insulating method at a corner portion of a casing composed of panel members in a building. The present invention relates to a waterproof sheet fixing structure and a fixing plate and a fixture used therefor that are particularly preferably used for a vibration isolation method in which vibrations can be mitigated by taking separate movements of a wall and a wall surface.

  As a construction method for constructing a building having a vibration isolation property, a vibration isolation construction method (Patent Document 1) such as an insertion muscle construction method, a slide construction method, and a rocking construction method is known. These vibration-isolated construction methods can reduce the vibration of the building by moving the floor and the wall independently, even when the building vibrates due to an earthquake, etc. Yes.

  By the way, in general, when laying a waterproof sheet at a corner of a concrete frame in a building by an insulation method, a fixed plate having an L-shaped cross section made of a metal material is disposed at the corner, and the floor side and the wall side are arranged. The flange piece of each is fixed to each with a fixing tool such as a screw, and furthermore, a waterproof sheet made of synthetic resin is laid on top of it, and the overlapping part of the waterproof sheet and the fixing plate and the side edges of the waterproof sheet are joined together The way to do it is taken.

  However, when this method is applied to the corner of a building that adopts the vibration isolation method in which the floor surface and the wall surface move separately, it is fixed by the fixture due to the displacement caused by the vibration of the building. There is a problem that the fixing plate comes off or the fixing plate itself is twisted and deformed. Such disengagement or deformation of the fixing plate breaks the waterproof sheet bonded to the surface and causes water leakage.

  In order to solve this problem, a fixing structure in which only one of the floor side flange piece or the wall side flange piece is fixed on the fixing plate having the L-shaped cross section can be considered. However, in this fixing structure, the flange piece on the non-fixed side becomes insufficient in strength, for example, when the waterproof sheet is lifted by negative pressure or when the waterproof sheet contracts due to aging, When a strong tensile stress is applied to the flange piece, there arises a problem that the fixing plate is deformed, for example, the fixing plate is bent with the fixing portion of the fixing tool as a fulcrum.

Therefore, as a structure for solving this problem, an L-shaped sticking member fixed to one housing of the adjacent housing forming the corner, and a substantially Z-shaped pasting material fixed to the other housing. A waterproof sheet fixing structure in which both members of the presser foot member are prepared, the free edge of the sticker member is covered and concealed by the free edge of the presser foot member, and fixed in a pressed state (Patent Document) 2) is known.
JP 08-312041 (conventional technology) JP-A-10-238028

  However, according to the fixing structure of the waterproof sheet, since it is necessary to prepare two types of members, that is, an L-shaped adhesive member and a Z-shaped adhesive pressing member, the material cost is fixed to the conventional L-shaped fixing member. Compared to the case of a single plate, it takes extra, and the number of man-hours for fixing work increases, resulting in inferior workability and economical efficiency.

  Further, in order to obtain this structure, after fixing the L-shaped adhesive member to the housing, the pressing member having a substantially Z-shaped cross-section is fixed. It was required to be precise, and skill and skill were required to do so. In addition, when constructing a floor surface with a water gradient with a complicated shape that inclines from other directions, even an expert may find it difficult to position the sticking presser member. In some cases, the pressing member is fixed in a displaced state.

  Further, in this fixing structure, since the L-shaped fixing plate and the Z-shaped pressing member are overlapped with each other at the free end edges, the waterproof sheet bonded to the portion has the free end. The protrusions are always pushed up by the convex portions of the overlapping portions of the edges, and there is a possibility that the pushed-up portions may be damaged when they are extended over a long period of time.

  The present invention is particularly preferably used for such a problem with respect to a vibration isolation structure composed of a panel member that allows the floor surface and the wall surface to move separately to reduce vibration. Waterproof sheet fixing structure and fixing plate and fixture used therefor, which are excellent in workability and economical efficiency during construction, and can be used for the waterproof sheet fixing structure that can maintain waterproof performance for a long time It is to provide a fixing plate and a fixture.

  That is, the waterproof sheet fixing structure according to claim 1 of the present invention includes a floor-side flange piece and a wall-side flange piece at a corner portion of the casing constituted by the panel member, and a fixing tool for each piece of the flange piece. A fixing plate having an L-shaped cross section provided with a hole is disposed, and the fixing plate is inserted into the fixing device hole to fix the fixing plate, and a waterproof sheet is laid on the upper surface of the fixing plate. In the waterproof sheet fixing structure in which the required portions of the waterproof sheet and the waterproof sheet are fixed to each other, the fixing hole in the floor side flange piece and / or the wall side flange piece is a loose hole or a long hole. This is a waterproof sheet fixing structure.

  The fixing plate according to claim 2 of the present invention is a fixing plate having an L-shaped cross section, which includes a floor side flange piece and a wall side flange piece, and each piece of the flange piece is provided with a fixture hole. The fixing hole in both or one of the floor side flange piece and the wall side flange piece is a fixing plate which is a loose hole or a long hole with respect to the fixing tool to be inserted.

  The fixing plate according to claim 3 of the present invention is the fixing plate according to claim 2, wherein the periphery of the loose hole or the long hole is recessed so as to accommodate the head of the fixture.

  According to a fourth aspect of the present invention, there is provided a fixing tool that is inserted through a loose hole or a long hole in the fixing plate according to any one of the first to third aspects of the present invention. The outer diameter of the flange is smaller than that of the outer flange and the thickness is set larger than that of the fixing plate, the inner flange is inserted through the loose hole or long hole, and the outer flange is a peripheral edge of the loose hole or long hole. It is a fixture that covers.

  In the fixing structure according to claim 1 of the present invention, the fixing hole in the floor side flange piece and / or the wall side flange piece is a loose hole or a long hole. Even when the wall moves independently, the fixed plate can move freely on the floor or wall surface by loose holes or long holes when it receives displacement, which may cause twisting or deformation of the fixed plate. Therefore, the waterproof sheet joined thereto has an effect that the waterproof performance can be maintained.

  Since the fixing plate according to claim 2 of the present invention is composed of only a fixing plate having an L-shaped cross section, the material cost can be kept low, the economy is excellent, and the construction work is easy. Further, since only the fixing plate needs to be arranged in accordance with the floor surface, the fixing operation can be easily performed even on the floor surface provided with a water gradient having a complicated shape that inclines from the other direction. In addition, since the fixing plate has flat surfaces on the floor side and the wall side, the waterproof sheet joined thereto is also flat and hardly scratched. The fixed structure is excellent in durability. The appearance is also excellent.

  Further, the fixing plate according to claim 3 of the present invention is the fixing plate according to claim 2, in particular, since the periphery of the loose hole or the long hole is recessed, the head of the fixing tool inserted therethrough is connected to the periphery of the fixing plate. Thus, the head of the fixture can be prevented from pushing up the waterproof sheet joined to the upper surface of the fixing plate.

  In the fixing device according to claim 4 of the present invention, the inner flange whose thickness is set larger than that of the fixing plate passes through the loose hole or the long hole, and the outer flange covers the periphery of the loose hole or the long hole. Therefore, even when the fixing tool is fastened, that is, when the fastening is fastened without adjusting the tightening force at the site, it is possible to reliably ensure a space in which the fixing plate can move freely.

  Next, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a cross-sectional view showing a waterproof sheet fixing structure according to the present invention. FIG. 2 is a perspective view showing a fixing plate according to the present invention.

  First, as an example of the fixing plate applied in the present invention, as shown in FIG. 2, a steel plate is used as a base material and the surface or both surfaces thereof are covered with a synthetic resin, and the floor side flange piece 1a and the wall side flange piece 1b It is composed of an angle with an L-shaped cross-section, and a plurality of long holes 2a and round holes 2c for inserting the fixtures are provided on the side edges of the flange pieces in the longitudinal direction. is there.

  The round hole 2c provided in the wall-side flange piece 1b has a shape with little play with respect to the shaft portion of the fixture 3 inserted therethrough, while the length provided in the floor-side flange piece 1a. The hole 2a has a shape with play in the longitudinal direction with respect to the shaft portion of the fixture 3 inserted therethrough.

  A state in which the fixture 3 is inserted and fixed in the long hole 2a is shown in a cross-sectional view and a top view of FIG. As shown in the figure, the shape of the long hole 2a is such that its width W is slightly larger than the outer diameter of the shaft portion 3b of the fixture 3 and smaller than the outer diameter of the head portion 3a. L is a shape having a length longer than the width W. In the figure, the shape of the long hole is substantially rectangular. However, as long as the long hole is formed, it may be oval, for example. Further, the length L is not uniquely set, but is set in accordance with the design of the vibration-isolating method employed. For example, when using a fixture with an outer diameter of the head of φ9 mm and an outer diameter of the shaft of φ4.5 mm and wishing to allow vibration displacement at 3 mm, the width W of the long hole 2 a is set to 5 to 6 mm, The length L can be set to 8 mm or more.

  In addition, at the periphery of the fixture hole such as the long hole 2a and the perfect circular hole 2c, the head 3a of the fixture 3 can be accommodated when viewed from the cross section of the fixture plate 1 so that the head 3a does not protrude upward. It is preferable that the shape is recessed, for example, a counter shape. By doing so, it is possible to eliminate the push-up to the waterproof sheet.

  The panel members 5a and 5b according to the present invention generally and generally refer to panel-like members used for walls and floors made of building materials, and the materials thereof include, for example, concrete, ceramics, wood, and porcelain. There are no restrictions such as ceramics, ceramics, and metals, and the use is not limited to interior use or exterior use.

  Next, the fixing structure of the waterproof sheet according to the present invention will be described.

  The waterproof sheet fixing structure according to the present invention includes, for example, the fixing plate 1 shown in FIG. 2 arranged at the corners of the casing composed of the panel members 5a and 5b as shown in FIG. A fixture 3 is inserted into each of the round hole 2c provided in the wall-side flange piece 1b and the long hole 2a provided in the floor-side flange piece 1a, fixed on the housing, and further provided with a waterproof sheet 4 on the upper surface. This is done by laying and joining the required portions of the fixing plate 1 and the waterproof sheet 4 together.

  The fixing tool 3 is typically a countersunk screw type used for fixing a panel member as an insulating method, but there is no limitation on the selection, for example, a flat screw type or a round screw type It may also be a drive-in type bar-like nail. However, as described above, a flat head screw is preferable from the viewpoint of pushing up the waterproof sheet and not damaging it. The material is preferably made of metal in terms of strength, but is not limited thereto, and may be made of, for example, wood or synthetic resin.

  Further, the fixture 3 inserted through the long hole 2a satisfies that the panel member 5a does not easily come out and that the fixing plate 1 can float after being fixed.

  As for the fixing method of the fixing tool 3, the shaft portion 3b of the fixing tool is inserted into the perfect circular hole 2c of the fixing plate 1 and is fastened without play, whereas the long hole 2a is fixed. The screwing depth or driving depth is adjusted so that the fixing plate 1 can move freely, and play is provided to fix the fixing plate 1.

  In the present invention, in order to fix the fixing plate in a state where the fixing plate can be reliably and easily moved, as shown in FIGS. 4 to 6, the head 23a has a two-stage flange including an outer flange 23c and an inner flange 23d. The inner flange 23d is smaller in outer diameter than the outer flange 23c and thicker than the fixing plates 21 and 31, and the inner flange 23d passes through the loose hole 2b or the long hole 2a and It is preferable to employ a fixture 23 in which the flange 23c covers the periphery of the loose hole 2b or the long hole 2a.

  By adopting such a fixture 23, as shown in FIGS. 4 and 5, when the fixture 23 is fastened to the panel member 5 a, the fastening strength of the fixture 23 is not increased or decreased on site. In both cases, the inner flange 23d is interposed between the outer flange 23c and the panel member 5a, so that a space in which the fixing plates 21 and 31 can freely move can be ensured.

  Further, in the fixing plate 31 in FIG. 5, the peripheral edge of the loose hole 2 b or the long hole 2 a is formed in a concave shape so as to accommodate the head 23 a of the fixing tool 23, and after fixing the fixing tool 23, It is possible to prevent 23a from being pushed up above the waterproof sheet joined to the upper surface of the fixing plate 31.

  The waterproof sheet 4 may be of any material as long as it is commonly used in conventional insulation methods. For example, the waterproof sheet 4 is made of a single layer made of a soft vinyl chloride resin sheet, or a net made of polyester fiber or the like. A reinforced soft vinyl chloride resin sheet interposed therebetween is preferably employed. About the sheet thickness, the thing of the range of 1.5-3.0 mm is employ | adopted suitably.

  As a joining method of the fixing plate 1 and the waterproof sheet 4, a joining method by solvent welding or heat fusion generally employed in an insulating method is applied. Of course, waterproof sheets 4 are laid on both sides of the wall-side panel member 5b and the floor-side panel member 5a, and the waterproof sheets 4 are joined to the fixing plate 1 and waterproof. The sheets 4 and 4 may be overlapped and joined at the overlapping portion.

  As described above, according to this waterproof sheet fixing structure, since the long hole 2a is formed in the side edge of the floor-side flange piece 1a, the vibration isolation method is employed, for example, the floor-side panel member 5a is horizontally oriented. Even if the fixing plate 1 is structured to vibrate and generate displacement, the fixing plate 1 is deformed or twisted by floating from the fixing position shown in FIG. 3A to the fixing position shown in FIG. It is possible to prevent the waterproof sheet 4 from being damaged.

  Next, a fixing structure and a fixing plate in which a loose hole is adopted as the fixing hole according to the present invention will be exemplified.

  In the present invention, the loose hole 2b can be adopted as the one that performs the same idle movement instead of the long hole 2a described above.

  FIG. 7 illustrates a fixing plate 11 employing a loose hole 2b instead of the long hole 2a in the floor-side flange piece 1a of the fixing plate shown in FIG.

  The loose hole 2b is provided with play with respect to the shaft portion 13b of the fixture 13 in the width direction as compared with the long hole 2a, and a shape such as a perfect circle or an ellipse is adopted. As shown in FIGS. 8A and 8B, the size of the loose hole 2b is larger than the outer diameter of the shaft portion 13b of the fixture 13 and smaller than the outer diameter of the head portion 13a. Further, the fixing tool 13 used at this time needs to be large enough that the head 13a can sufficiently hold down the fixing plate 11.

  For example, when the panel member 5a moves from the state shown in FIG. 8A to the state shown in FIG. If the outer diameter of 13a is φ20 mm and the outer diameter of the shaft portion 13b is φ4.5 mm, the fixing plate 11 can have a loose hole 2b of about φ15 mm. Thus, by changing the size of the loose hole 2b and the outer diameter of the head 13a of the fixing tool 13, a waterproof sheet fixing structure that can flexibly cope with the displacement designed by the vibration isolation method or the like can be obtained. .

  Next, examples will be described.

<Example 1>
First, in producing the fixing plate, the core material is a 0.6 mm steel plate, the surface layer is coated with a 0.5 mm thick polyvinyl chloride resin layer, and the back layer is 0.1 mm polyvinyl chloride resin. A polyvinyl chloride resin-coated steel plate coated with a layer was prepared as an original plate. The original plate was bent and cut into an angled L-shaped angle with a length of 2 m, a wall-side flange piece width of 40 mm, and a floor-side flange piece width of 150 mm.

  Next, with respect to the floor-side flange piece of this angle, a round hole having a diameter of φ6 mm was drilled at seven locations in 325 mm increments starting from a position 20 mm away from the end in the longitudinal direction. Next, on the wall-side flange piece, seven long holes having a width of 6 mm and a length of 12 mm are drilled at the corresponding positions in the corresponding positions in the longitudinal direction at the positions corresponding to the circular holes in the longitudinal direction. This was used as a fixed plate.

  Next, we prepared a model building consisting of panel members that can rotate independently on the floor and the wall, where the vibration isolation method was adopted, and placed this fixed plate at the corner of the model building. Using a fixing tool made of a screw having an outer diameter of φ9 mm and a shaft portion having an outer diameter of φ4.5 mm, the fixing tool was inserted into each fixing tool hole and fixed. At this time, the round hole was fixed in a fastened state without play, and the long hole was fixed in a playable state with play at a substantially intermediate position.

  Furthermore, from above, a polyvinyl chloride resin-based waterproof sheet is laid, and the overlapping part of the fixing plate and the waterproof sheet, and the overlapping part of the waterproof sheets are joined to each other by solvent welding, and this is fixed to the waterproof sheet. The structure.

  Next, with respect to the obtained waterproof sheet fixing structure, with the floor surface in the model building fixed, only the wall surface is kept parallel to the end surface of the panel member on the floor side. ) In steps from 0.5 ° to 1 °. When the state of the fixing plate and the waterproof sheet joined thereto was observed, neither the fixing plate nor the waterproof sheet was seen to be deformed or torn at any angle from 0 ° to 1 °. Was adequately secured.

<Example 2>
Using the angle shown in Example 1, this time, a round hole with a diameter of φ6 mm was drilled at 7 locations in increments of 325 mm from the end of the floor side flange piece in the longitudinal direction, with a position 20 mm apart from the base point. On the other hand, seven loose holes with a diameter of φ15 mm were drilled in the wall side flange pieces at positions corresponding to the perfect circular holes, and these were used as fixing plates.

  Next, this fixed plate is arranged at the corner of the model building adopting the vibration isolation method shown in Example 1, and the outer diameter of the head is 9 mm with respect to the round hole of the floor side flange piece. The shaft has an outer diameter of 4.5 mm, and is fixed using a fastener made of screws. The outer diameter of the head is φ20 mm and the outer diameter of the shaft is φ4. It fixed using the fixing tool which consists of a 5 mm screw. At this time, the round hole was fixed in a fastened state without play, and the loose hole was fixed in a playable state with play at a substantially intermediate position with respect to the loose hole.

  Furthermore, from above, a polyvinyl chloride resin-based waterproof sheet is laid, and the overlapping part of the fixing plate and the waterproof sheet, and the overlapping part of the waterproof sheets are joined to each other by solvent welding, and this is fixed to the waterproof sheet. The structure.

  Next, with respect to the fixing structure of the waterproof sheet, in the same manner as in Example 1, with the floor surface in the model building fixed, only the wall surface is gradually changed from 0 ° (initial stage) to 0.5 °, 1 °. Rotated until. When the state of the fixing plate and the waterproof sheet joined thereto was observed, neither the fixing plate nor the waterproof sheet was seen to be deformed or torn at any angle from 0 ° to 1 °. Was adequately secured.

<Comparative Example 1>
Using the angle shown in Example 1, the end of the floor side flange piece and the wall side flange piece has a diameter of φ6 mm with respect to 7 locations in increments of 325 mm starting from a position 20 mm away from the end in the longitudinal direction. A round hole was drilled and used as a fixed plate.

  Next, with respect to the model building in which the vibration isolation method shown in Example 1 is adopted, this fixing plate is arranged at the corner, and the round hole in the floor side flange piece and the wall side flange piece, The head was fixed using a fixing tool made of a screw having an outer diameter of 9 mm and an outer diameter of the shaft of 4.5 mm. At this time, these round holes were fixed in a fastened state without play.

  Furthermore, from above, a polyvinyl chloride resin-based waterproof sheet is laid, and the overlapping part of the fixing plate and the waterproof sheet, and the overlapping part of the waterproof sheets are joined to each other by solvent welding, and this is fixed to the waterproof sheet. The structure.

  Next, with respect to the fixing structure of the waterproof sheet, in the same manner as in Example 1, with the floor surface in the model building fixed, only the wall surface is gradually changed from 0 ° (initial stage) to 0.5 °, 1 °. Rotated until. When the state of the fixing plate at that time and the state of the waterproof sheet bonded thereto was observed, the waterproof function was maintained although the fixing tool was slightly deformed at 0.5 °, When the angle was 1 °, the fixing plate was twisted, and a part of the waterproof sheet was broken.

  As can be seen from the above, in the fixing structure of the waterproof sheet according to the present invention in the embodiment, even when the floor and the wall move independently, the fixing plate can move freely with respect to the floor surface or the wall surface, Thereby, twisting and deformation of the fixing plate were suppressed, and the waterproof sheet joined thereto could maintain the waterproof performance. On the other hand, in the fixing structure of the waterproof sheet that deviates from the present invention in the comparative example, the fixing plate is deformed when the floor and the wall move independently, and the waterproof mechanism cannot be secured.

It is sectional drawing which shows the fixing structure of the waterproof sheet concerning this invention. It is a perspective view which shows the fixing plate for waterproof sheet construction by which the long hole concerning this invention was employ | adopted. It is the top view and sectional drawing for demonstrating the shape of the long hole in the fixing plate for waterproof sheet construction concerning this invention. It is sectional drawing which shows the state by which the fixing tool for waterproof sheet construction concerning this invention was penetrated by the loose hole or long hole of the fixing plate. It is sectional drawing which shows the state by which the fixing tool for waterproof sheet construction concerning this invention was penetrated by the loose hole or long hole in another fixing plate. It is a perspective view which shows the fixing tool for waterproof sheet construction concerning this invention. It is a perspective view which shows the fixing plate for waterproof sheet construction by which the loose hole concerning this invention was employ | adopted. It is sectional drawing for demonstrating the shape of the loose hole in the fixing board for waterproof sheet construction concerning this invention.

Explanation of symbols

1, 11, 21, 31 Fixing plate 1a Floor side flange piece 1a Wall side flange piece 2a Long hole 2b Loose hole 2c Round hole 3, 13, 23 Fixing tool 3a, 13a, 23a Head 3b, 13b, 23b Shaft Part 23c Outer flange 23d Inner flange 4 Waterproof sheet 5a, 5b Panel member

Claims (4)

  A fixing plate having an L-shaped cross section, which is composed of a floor side flange piece and a wall side flange piece, and in which each piece of the flange piece is provided with a fixture hole, is disposed at a corner portion of the casing constituted by the panel member, The fixing plate is inserted through the fixing hole to fix the fixing plate, and a waterproof sheet is laid on the upper surface of the fixing plate, and the required portions of the fixing plate and the waterproof sheet are joined to fix the waterproof sheet. In the waterproof sheet fixing structure, the fixing hole in the floor side flange piece and / or the wall side flange piece may be a loose hole or a long hole.   A fixing plate for construction of a waterproof sheet having an L-shaped cross section, comprising a floor side flange piece and a wall side flange piece, and each piece of the flange piece having a fixing hole, wherein the floor side flange piece and the wall side A fixing plate for waterproof sheet construction, wherein the fixing tool holes in both or one of the flange pieces are loose holes or long holes with respect to the fixing tool to be inserted.   The fixing plate for waterproof sheet construction according to claim 2, wherein a peripheral edge of the loose hole or the long hole in the fixing plate is recessed so as to accommodate the head of the fixing tool.   A fixture that is inserted through a loose hole or a long hole in the fixing plate according to any one of claims 1 to 3, wherein the head of the fixture is composed of a two-stage flange of an outer flange and an inner flange, The inner flange is smaller in outer diameter than the outer flange and thicker than the fixed plate, the inner flange is inserted through the loose hole or long hole, and the outer flange is formed of the loose hole or long hole. A fixing tool for construction of a waterproof sheet, characterized by covering the periphery.

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