JP4640717B2 - Auxiliary film for covering the upper surface to improve the air tightness and water tightness of the film fixing part in the film structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an upper covering auxiliary film for improving air tightness and water tightness of a film fixing portion in a film structure.
[0002]
[Prior art]
A glass fiber cloth coated with tetrafluoroethylene ( Teflon-coated glass fiber cloth ) widely used for the film structure is an excellent material that has high durability and is hardly contaminated. As this type of film material, a glass fiber cloth coated with tetrafluoroethylene (Teflon) is used in Japanese Patent Application Laid-Open No. 63-165670 because of the fact that it must have fire resistance that is indispensable for buildings. In Japanese Patent Publication No. 7-2404, as a heat-resistant sheet, a base fabric comprising inorganic fibers and organic fibers and a fluorine-containing material formed on one surface thereof are proposed. A heat-resistant coating layer comprising a resin, and a polymer coating formed on the other side of the base fabric and comprising at least one selected from a synthetic resin different from a fluorine-containing resin, natural rubber, and synthetic rubber A heat-resistant sheet having a layer and the inorganic fiber is selected from asbestos fiber, ceramic fiber, silica fiber, glass fiber, carbon fiber, and metal fiber. A predetermined amount of organic fiber is mixed with the inorganic fiber forming the base fabric, and the base fabric is formed with a heat-resistant coating layer containing a fluorine-containing resin and a polymer coating layer containing another polymer. Therefore, it has excellent bending strength while maintaining the desired heat resistance, and can be sewn to any shape, so it can be repeatedly bent, vibrated and crushed at high temperatures. It can be used widely. And in this heat-resistant sheet, “On one side, natural rubber, neoprene rubber, chloroprene rubber, silicone rubber, etc., when it is necessary to improve the weather resistance of the base fabric due to the performance required for the sheet, etc. , Hypalon and other synthetic rubbers, or synthetic resins different from fluorine-containing resins, such as PVC resin, ethylene-vinyl acetate copolymer (EVA) resin, acrylic resin, silicone resin, urethane resin, polyester resin, etc. In this case, it is more preferable that these resins are flame-retarded, and that one side of the heat-resistant sheet of the present invention is coated with a polymer different from the fluorine-containing resin. By forming a layer, for example, when making a refractory clothing, this polymer coating layer is on the inside. It is possible to place wear property (comfort) good. Is set to ". In other words, a sheet having different performances on both sides of the sheet (synthetic rubber on one side and fluorine-containing resin on the other side) is proposed.
[0003]
On the other hand, since chemical bonding is difficult in the joining and fixing of the membrane members, the coating material ( tetrafluoroethylene , fluorine-containing resin) is melted and bonded by heat, or only by mechanical fixing by plate bolts. Has not been developed.
[0004]
Under such circumstances, as shown in FIG. 4, a general mechanical fixing is a top plate of a mounting bracket 4 having a C-shaped cross section for enclosing and holding a girder member 3 that suspends and holds a cable 1 via a U bolt 2. Membrane presser 8 for clamping the ends of upper rubber gaskets and rubber covers 7 and 7 for holding watertightness together with joint ends 6a and 6 of Teflon films 6 and 6 facing bolts 5 and 5 inserted in The rubber zipper 9 is inserted between the hooks 7a and 7a which are engaged with the inner hooks 8a and 8a of the hardware 8 and 8.
[0005]
The water stopping performance by sandwiching the rubber packing in the mechanical fixing portion is not reliable and permanent. What should be taken into consideration is that since the useful life of the rubber material itself is shorter than that of the membrane 6, the deterioration will surely progress within the common life and the water stop performance will be lowered. It is a situation that rainwater will enter.
[0006]
The above situation can be deviated from the fact that the mechanical fixing portion is the same even when the two-stage water stop a and b are adopted in the gasket 19 disclosed in Japanese Utility Model Laid-Open No. 60-55608 shown in FIG. None (the same members as those in FIG. 4 are denoted by the same reference numerals).
[0007]
When considering inevitable repairs due to such mechanical fixing, since the replacement of the rubber packing (rubber cover 7) at the fixing portion is a large scale that covers the entire roof, it is very expensive and time consuming. It must be virtually impossible in some buildings.
[0008]
In view of the above circumstances, Japanese Patent Publication No. 4-36233 proposes improvement of airtightness and watertightness by covering the auxiliary film of the film fixing part upward.
[0009]
That is, as shown in FIGS. 6A, 6B, and 7, in the fixing structure 11 in which the film material protection rubber sheets 13 and 14 are sandwiched between the upper and lower sides of the film end plate 12, the film panel 15 The base end edge of the watertight / airtight holding auxiliary membrane 16 is integrally welded 20 on the upper surface of the joint end portion, and the fluorine resin plate 16a at the distal end portion of the auxiliary membrane 16 is inserted into the gasket 17, and the zipper 18 is attached to the gasket 17. The auxiliary membranes 16 of the pair of membrane panels 15 that are fitted together are watertight and airtightly joined to complete the joining operation of the membrane panels 15.
[0010]
Therefore, the upper surface of the joint portion of the membrane panel 15 is fluid-tightly covered by the auxiliary membrane 16 and water leakage from the joint portion is prevented (the same components in FIG. 4 are given the same reference numerals). Further, in the publication, as shown in FIG. 7, the opposing end portions of the auxiliary films 16 and 16 taken out from the adjacent film panels 15 and 15 are integrally connected by welding 21. .
[0011]
Due to the elasticity of the rubber sheet 13, the auxiliary film 16 does not bump when inflated (FIGS. 6a and 7) or deflated (FIG. 6b).
[0012]
[Problems to be solved by the invention]
However, in the above-described treatment using the auxiliary film, the film material used as the auxiliary film is, as described above, coating with tetrafluoroethylene ( Teflon coating ), fluorine-containing resin or single-sided fluorine-containing resin, synthetic rubber on the other side, as described above. Since the entire surface is of the same layer, there is a practical inconvenience.
[0013]
That is, FIG. 6 the membrane material on ordination with a thermal welding between the same materials as described above, an attempt to use with in the manner of FIG. 7, in the case of FIG. 6 coating with both sides tetrafluoroethylene ( Teflon coating ) or fluorine-containing resin film material covers the fixing portion, and one-side fluorine-containing resin and other-surface synthetic rubber material is fixed to the film panel 15 due to thermal welding to the film panel 15. The synthetic rubber surface on the opposite side covers the part. Usually, the fixing part using black rubber is covered with a white film material, or the white film panel 15 part is covered with a black synthetic rubber surface. It happens that the owner's consent cannot be obtained.
[0014]
The present invention has been made in view of the above circumstances, and an object of the present invention is to divide a black fixing portion and a white film panel portion in a film fixing portion having a film structure that easily changes over time. Provided is an auxiliary membrane auxiliary membrane for covering the upper covering for improving the air tightness and water tightness of the film fixing portion that can be built and can improve or restore the air tightness and water tightness without impairing the present design properties There is.
[0015]
[Means for Solving the Problems]
In order to achieve the above object, the auxiliary covering film for improving the airtightness and watertightness of the film fixing portion in the film structure of the present invention is one of tape-like heat-resistant glass fiber cloth base fabrics. The other side is coated with tetrafluoroethylene ( Teflon ) and the other side is coated with rubber.
[0016]
Further, the non-adhesiveness of one side of a glass fiber cloth ( teflon-coated glass fiber cloth ) coated with tape-like tetrafluoroethylene is reduced by chemicals , and rubber is coated or adhered thereto.
[0017]
[Action]
Since one is a glass fiber fabric (white) and the other is a rubber coating (black), it is the same in tensioning between the fixing part using black rubber and the membrane panel of white film material. It has the effect of satisfying the essential requirement of heat welding (in the case of tetrafluoroethylene ) between the materials and the condition that the existing appearance is not changed.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIG.
[0019]
1a-c show variations of the membrane 22 of the present invention.
[0020]
a is a tape-like heat-resistant glass fiber cloth base fabric 22a, one side of which is coated with tetrafluoroethylene coating ( Teflon coating ) 22b and the other is a rubber coating 22c.
[0021]
b shows an example in which the above-mentioned coatings 22b and 22c are not set to be the same on the front and back sides, and the effect thereof will be described in the construction mode of FIGS.
[0022]
c is a rubber coating 22c 'in which the non-adhesiveness is reduced by chemicals on one side of the base fabric 22a' of a glass fiber cloth ( teflon-coated glass fiber cloth ) coated with tape-like tetrafluoroethylene .
[0023]
Although not shown, there are cases where the front and back are not set to be the same.
[0024]
Since the tetrafluoroethylene ( Teflon ) (white) and the rubber (black) surface appear on the same surface, the requirement for thermal welding of the same material (in the case of tetrafluoroethylene ) is satisfied. However, it can be attached without deteriorating the appearance of the existing fixing unit and the membrane panel.
[0025]
That is, in FIG. 2a, the membrane 22 of the present invention is thermally welded to the membrane panel 6 with the white portions 22b and 22a 'of tetrafluoroethylene in the minimum range of only the rainwater intrusion portion in FIGS. 22c 'can be glued or glued 24 (rubber does not need to be heat welded) and stretched.
[0026]
Further, in b, the black portions 22c and 22c ′ are bonded or adhered 24 on the covers 7 and 7 so as to achieve a more complete water stoppage.
[0027]
In both a and b, the white and black portions are not necessarily equally divided between the front and back, and this is the reason for the non-identical setting of the front and back in FIG.
[0028]
In the embodiment of FIG. 2a, as shown in FIG. 3, if the lightning conductor 23 is too large in a plane such as a dome and cannot be covered by the lightning rod, or if it has a film structure, the tip of the lightning rod may cover the film. When there is a property, it is suitable when extending on the rubber cover 7.
[0029]
Thus, the auxiliary membrane 22 of the present invention can ensure (1) more reliable airtightness and watertightness with a small additional amount of money.
(2) Since the related portions are limited, the followability to deformation is good, and there is no damage due to wind.
(3) When used for renovation work, it takes less time and money because of local work.
(4) When used for renovation work, refurbishment can be realized without impairing the conventional appearance.
Etc. are effective.
[0030]
【The invention's effect】
Since the film of the present invention is configured as described above, it is preferable that the water stopping ability of the fixing portion can be improved and maintained without deteriorating the existing appearance.
[Brief description of the drawings]
1A to 1C are explanatory views of variations of the film of the present invention.
FIGS. 2a and 2b are explanatory diagrams of a construction example for improving / holding water at a fixing portion using the membrane of the present invention.
FIG. 3 is an explanatory diagram of a special construction example for improving and holding water stopping of the fixing portion of the film of the present invention.
FIG. 4 is an explanatory diagram of rainwater inundation of the fixing unit.
FIG. 5 is an explanatory diagram of rainwater inundation in another fixing unit structure.
FIGS. 6A and 6B are views of inflation and deflation of an example of covering with an auxiliary film to prevent rainwater inundation of a conventional fixing unit.
FIG. 7 is a view of an inflation in another coating example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1; Cable 2; U bolt 3; Girder member 4; Mounting bracket 5; Bolt 6; 4 Fluoroethylene ( Teflon ) film 6a; Joining end 7; Rubber cover 7a; Cove part 8; Presser foot 8a; Rubber zipper 10; Arrow 11; Fixing structure 12; Membrane end plates 13, 14; Rubber sheet 15; Membrane panel 16; Auxiliary membrane 16a; Fluororesin plate 17; Gasket 18; Zipper 19; Gasket 20, 21; 22a, 22a '; base fabric 22b; coating with tetrafluoroethylene ( Teflon coating )
22c, 22c '; Rubber coating 23; Lightning conductor 24; Adhesion or adhesion

Claims (4)

One of the front and back surfaces of a tape-like heat-resistant glass fiber cloth base is coated with tetrafluoroethylene and the other front and back surfaces are coated with rubber. Auxiliary membrane for upper covering to improve air tightness and water tightness.   The auxiliary film for covering the upper surface for improving the air tightness and water tightness of the film fixing part in the film structure according to claim 1, wherein the front and back coatings are set to be the same as the front and back. Non-adhesiveness is reduced by chemicals on one side of the glass fiber cloth coated with tape-like tetrafluoroethylene , and rubber is coated or adhered to this. Auxiliary covering film for improving the water tightness.   4. The upper covering covering auxiliary film for improving the airtightness and watertightness of the film fixing portion in the film structure according to claim 3, wherein the front and back rubber coatings are set to be the same as the front and back.

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