JP4022535B2 - Sound-preventing structure for folded plate roof - Google Patents

Description

  The present invention relates to a soundproof structure for a folded-plate roof board which prevents a sound-squeezing phenomenon caused by thermal expansion and contraction due to a temperature difference between adjacent metal folded-plate roof boards in a double-walled or single-folded folded-sheet roof. About.

  The metal folded plate roof plate is a highly functional and economical roof, and has an excellent waterproof function because it is particularly long. However, the folded roof plate is long and has a relatively large linear expansion coefficient, so that a sounding phenomenon occurs with thermal expansion and contraction, which causes a problem in building use. The problem that this noise phenomenon occurs is that the longer the folded roof plate, the greater the amount of thermal expansion and contraction, and the higher the possibility of noise generation.

As a soundproof structure for the folded plate roof, the joint ends of adjacent metal folded plate roof plates are supported on a base material by a roof plate support member including a movable bracket such as a hanging member, and the movable bracket is In order to cope with the thermal expansion and contraction of the folded plate roof plate, there is one that is provided to be slidable in the length direction (ridge building direction) of the folded plate roof plate (for example, see Patent Documents 1 to 4). .)
In addition, the non-metallic soft material such as natural rubber, synthetic rubber, and foamed resin material is interposed between the contact surfaces of the joint ends of the adjacent folded plate roof boards, and the thermal expansion and contraction between the joint ends of the folded board roof boards. There are some which try to prevent the generated sound (see, for example, Patent Documents 5 to 8).

JP 09-328869 A Japanese Patent Laid-Open No. 10-37406 JP 2000-110307 A JP 2003-147915 A JP 09-184255 A JP 09-184257 A JP 2000-129866 A JP 2002-339521 A

  However, the above-mentioned folded plate is simply provided so that the movable bracket of the roof plate supporting member that supports the joint ends of the adjacent folded plate roof plates on the base material is slidably provided to cope with the thermal expansion and contraction of the folded plate roof plate. In the roof anti-sound structure, the folded roof plates exhibit different temperature fluctuations due to the irradiation angle of the solar radiation, so that the joint ends of the adjacent folded roof plates differ slightly from each other. Friction noise is generated because of the movement, but this problem of friction noise cannot be solved.

  In addition, in the above-mentioned folded roof roof noise prevention structure in which a non-metallic soft material such as natural rubber, synthetic rubber or foamed resin material is interposed between the contact surfaces of the joined ends of the adjacent folded roof panels, The noise generated by friction between the joined ends of the folded roof plates is reduced, but the joined ends of the adjacent folded roof plates are fixed on the base material with tightening brackets, support brackets, or fixed brackets. Since the internal stress of the folded plate roof plate accumulated due to thermal expansion and contraction of the folded plate roof plate portion fixed by the fixed bracket is instantaneously released, The problem of sound generation caused by the movement is not solved.

The present inventors have implemented a combination of the two noise prevention measures as described above, and as a result of verifying the effects thereof, as a result, the use of the interior of the building is particularly troublesome. It has been confirmed that there is a certain effect, and it is considered to be effective in the case where the interior of the building does not require so much quietness such as a work place or a general office room.
However, if the room is used in a room where quietness is required, such as a conference room or a lecture hall, even a relatively light sound of less than 60 dB may interfere with use, and the above-described noise prevention technology measures are insufficient. However, there is another problem that it is necessary to take measures against sound insulation on the ceiling.

  The present invention has been made to solve such problems, and the object of the present invention is to prevent the occurrence of minor noises of generally less than 60 dBA. Even in a room where quietness is required like this, there is no need for sound insulation measures on the ceiling, and sufficient measures can be taken only with the roof, preventing the generation of noise caused by the thermal expansion and contraction of the folded roof plate It is an object of the present invention to provide a soundproof structure for a folded-plate roof that is extremely advantageous.

In order to achieve the above-mentioned object, the soundproof structure for folded plate roof of the invention according to claim 1 of the present invention is a folded plate with joint ends of adjacent metal folded plate roof plates placed on a base material. In the folded-plate roof supported via the roof-plate support member provided with the movable metal fitting slidable in the length direction of the roof plate, a lubricant is applied between the contact surfaces of the joint ends of the folded-plate roof plate. It has a feature in being.

In this case, as the joining form of the joined ends of the folded plate roof boards, the joined end of one folded plate roof board and the joined end of the other folded board roof board are as in the invention according to claim 2. The joint end of the other folded-plate roof board is fitted and connected to the outside of the joined end of one folded-plate roof board like the invention which concerns on Claim 3, or the invention which concerns on Claim 4 Thus, the joint end of one folded-plate roof board and the joint end of the other folded-plate roof board can be butt-joined to each other.
The joint end of one folded-plate roof slab and the joint end of the other folded-plate roof slab are joined together by fastening as in the invention described in claim 2, If the joining end of the other folded plate roof plate on the outside of the joining end of the folded plate roof plate or fitted and connected is it lubricates between the contact surfaces of the joining end to each other. You lubricate between the butting joint surfaces when the butt each other joining the joining end of one of the joining end of the folded plate roof plate and the other folded plate roof plate as in the invention of claim 4 .

Also, you to lubricate also between the contact surfaces of the joint end of the movable fitting the folded plate roof plate as in the invention according to claim 5.

According to a sixth aspect of the present invention, there is provided a soundproofing structure for folded-plate roofs according to the fourth aspect of the present invention, wherein the butt-joined joint ends are covered with caps. between the contact surfaces of the joint end near the well and it has a feature in Rukoto subjecting coating with lubricant.

The lubricant is a dry film lubricant comprising a solid lubricant and its binder as in the invention described in claim 7, and is applied to the above-mentioned predetermined lubrication points and dried. A lubricating coating is obtained. Examples of the solid lubricant include a fluororesin powder such as polytetrafluoroethylene, molybdenum disulfide powder, graphite powder, titanium oxide powder, and calcium fluoride powder. The binder is a substance that cures to form a solid lubricant film, and includes various organic resin binders and inorganic binders. Actually, various dry film lubricants based on combinations of these solid lubricants and binders are commercially available. In the present invention, the solid lubricant and the binder can be used in combination with various kinds of materials, but as the solid lubricant, in particular, as in the invention according to claim 8, polytetrafluoroethylene resin Preferably it contains a powder. Further, such a dry film lubricant is used after being diluted with a solvent that dissolves the binder in order to improve applicability to lubrication points.
Further, as in the invention according to claim 9, the lubricant includes a dry film lubricant that does not include the polytetrafluoroethylene resin powder to be primed, and a polytetrafluoroethylene resin powder that is overcoated on the dry film lubricant. It is preferable to use what consists of a dry film lubricant to contain.

According to the first to fourth aspects of the present invention, even if the joint ends of adjacent folded-plate roof boards slide relative to each other by thermal expansion and contraction, friction caused by the lubricant applied between the contact surfaces of the joint ends. Generation of frictional noise due to relative sliding can be prevented by the reducing action. At the same time, the joined ends of the folded roof plates are supported on the base material via a roof plate supporting member provided with a movable bracket that is slidable in the length direction of the folded roof plates. The roof plate can be expanded and contracted relatively freely with the movable bracket, so that internal stress is not easily generated in the folded plate roof plate, and when the stress exceeding the restraint at the support fixing part by the roof plate support member is generated The impact sound that accompanies a rapid movement can be reduced, and the occurrence of significant noise can be prevented. In this way, the synergistic effect of the friction reducing action by the lubricant and the sliding action of the movable metal fitting has an extremely high effect of preventing the sound generation of the folded plate roof as a whole, and the generation of a slight sound noise of generally less than 60 dBA. Even when the interior of the building is required to be quiet, it is no longer necessary to take measures against sound insulation by the ceiling.

According to the invention described in claim 5, since the lubricant is also applied between the contact surfaces of the movable metal fitting of the roof plate support member and the joint end of the folded plate roof plate, the joint end of the folded plate roof plate and Generation of sliding noise due to minute friction with the movable metal fitting can also be suppressed, and a slight noise reduction effect can be further enhanced.

According to the sixth aspect of the present invention, since the lubricant is applied also between the contact surface between the butt-joined joint plate of the adjacent folded plate roof plates and the cap, the joint end of the folded plate roof plates. Minute friction between the cap and the cap can also be reduced, and the noise at that location can be reduced.

  According to the seventh aspect of the present invention, since the dry film lubricant containing a solid lubricant is used as the lubricant, it is excellent in lubricity, friction reduction characteristics and heat / cold resistance, and flows like oil or grease. Or dust. In the case of using a fluororesin such as polytetrafluoroethylene resin powder having a small friction coefficient as in the invention described in claim 8, it has excellent lubricity, friction reduction characteristics and heat / cold resistance, and these characteristics over a long period of time. Can be maintained.

  In particular, a dry film lubricant containing no polytetrafluoroethylene resin powder to be primed as in the invention described in claim 9 and a dry film lubricant comprising polytetrafluoroethylene resin powder to be overcoated thereon When the two types are used together, it is possible to prevent the dry coat lubricant of the undercoat from falling off with the dry coat lubricant of the top coat. Therefore, the lubricity can be maintained for a longer period.

A preferred embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a longitudinal front view of a main part of a soundproof structure for a folded-plate roof showing an embodiment of the present invention, FIG. 2 is a cross-sectional view of a screwed-up portion of the upper folded-plate roof, and FIG. It is a perspective view of the roof-plate support member containing the movable metal fitting provided in the sound prevention structure.
The sound-preventing structure of this folded-plate roof is a double structure in which the temperature difference between the indoor and the outdoor where the upper-folded folded-plate roof 2 is hung on the lower-folded folded-plate roof 1 is fastened. An example applied to a folded-plate roof is shown. The upper folding plate roof 2 was folded into a joint end (small hull) 4a which was bent into the numeral “3” of one of the adjacent metal folded-plate roofs 4 and 4 and the other arc. The joint ends (large claws) 4a are connected by fastening with a fastening machine, and the joint ends 4a, 4a joined together by fastening are folded on the lower folding plate roof (base material) 1. A roof having movable metal fittings 6 slidable in the length direction (ridge direction) of the folded roof plate 4 on the joint ends 5a and 5a which are fastened in the same manner as the flat roof plates 5 and 5. It is supported via a plate support member 71. As shown in FIG. 2, a lubricant 7 that reduces the generation of sound due to friction is provided between the contact surfaces of the joint ends 4 a and 4 a of the adjacent folded plate roof plates 4 of the upper folded plate roof 2. .

  As shown in FIGS. 1 and 3, the roof plate support member 71 sandwiches the joint ends 5 a and 5 a that are fastened to the folded plate roof plates 5 and 5 of the lower folding plate roof 1, and a pair of fixing members. 8, 8 and the heat insulating member 10 having a T-shaped cross section sandwiched between the fixing member upper ends 8a and 8a extending upward from the joint ends 5a and 5a of the fixing members 8 and 8 and the heat insulating member 10 are fixed. Fasteners 9 such as bolts and nuts that are fastened and fixed between the upper end portions 8a and 8a are provided. A rail portion 11 is integrally formed on the upper portion of the heat insulating member 10, and the rail portion 11 is slidably held by a pair of sliding members 12, 12, and extends upward from the sliding members 12, 12. The movable metal fitting (hanger) 6 is sandwiched between the sliding member upper end portions 12a and 12a and is fastened and fixed by a fastener 13 such as a bolt or nut. The joint ends 4 a and 4 a of the adjacent folded plate roof plates 4 and 4 of the upper folding plate roof 2 are fastened with the hook-shaped upper end portion 6 a of the movable metal fitting 6 interposed therebetween. Incidentally, the heat insulating member 10 is provided in order to block the heat of the upper folded plate roof 2 from being conducted to the lower folded plate roof 1.

  The length of the folded roof plate 4 on the lower folded folded roof (base material) 1 with the joint ends 4a, 4a of the folded folded roof 4 adjacent to the folded folded roof 4 being fastened. Since it is supported by the roof plate support member 71 provided with the movable metal fitting 6 slidable in the direction, when the temperature change occurs in the upper folding plate roof 2 and the folded plate roof plate 4 is thermally expanded and contracted, the roof plate support member Since the movable metal fitting 6 of 71 is integrated with the folded-plate roof plate 4 by fastening, the sliding of the folded-plate roof plate 4 on the rail portion 11 of the heat insulating member 10 is caused by the thermal expansion and contraction of the folded-plate roof plate 4. Due to this sliding, internal stress is unlikely to occur in the folded roof plate 4, and it is possible to prevent the generation of noise due to sudden movement when stress exceeding the restraint at the support fixing portion by the roof plate support member 71 is generated. .

The lubricant 7 is applied to both the outer side of one joining end (small hull) 4a and the inner side of the other joining end (large hose) 4a or the Prepared by applying to one side. Thereby, even if the joint ends 4a and 4a of the adjacent folded roof plates 4 and 4 slide relative to each other by thermal expansion and contraction, the friction reducing action by the lubricant 7 provided between the contact surfaces of the joint ends 4a and 4a. Therefore, it is possible to prevent the generation of frictional noise due to relative sliding.
Further, in order to reduce the generation of sound due to sliding friction between the contact surfaces of the movable metal fitting 6 and the joint end 4a of the folded roof plate 4, as shown in the partially enlarged view of FIG. The lubricant 7 is applied to both the inside and outside of the part 6a or one side thereof.
In FIG. 4, the lubricant 7 is applied to a base material 16 such as a foamed sheet, and the base material 16 is adhered to a joint end 4 a of the folded roof plate 4 or a predetermined lubrication portion of the movable metal fitting 6 to lubricate. The reference example provided with the agent 7 is shown .

  The lubricant 7 is a lubricant film which is a dry film lubricant composed of a solid lubricant and its binder. The dry film lubricant that can be used now includes polytetrafluoroethylene resin powder comprising 4% by weight of a room temperature curing type polyurethane resin binder, 42% by weight of polytetrafluoroethylene resin powder, and 54% by weight of water. Are dry film lubricants (hereinafter referred to as “dry film lubricant A”). The dry film lubricant for undercoating without the polytetrafluoroethylene resin powder on which the dry film lubricant A is overcoated includes 20% by weight of molybdenum disulfide powder, 5% by weight of graphite powder, and 12% of polybutyl titanate. There is a room temperature curing type dry film lubricant (hereinafter referred to as “dry film lubricant B”) composed of 63% by weight of a mixed solvent of butyl acetate and naphtha. These dry film lubricant A and dry film lubricant B can be cured in 30 minutes to several hours without heating at room temperature to form a lubricant film.

The above-described lubricant 7 can be easily cured at a construction site by using a room temperature curable binder, which is advantageous in improving workability. As the room temperature curable binder, in addition to those described above, for example, alkyd resin, acrylic, silicate, and the like can be used. However, it is not limited to such a room temperature curable binder, and a thermosetting binder such as a phenol resin, an epoxy resin, an amide imide resin, and an imide resin can also be used.
As the solid lubricant of the lubricant 7, in addition to the polytetrafluoroethylene resin powder, the molybdenum disulfide powder and the graphite powder, a fluororesin powder such as a tetrafluoroethylene-ethylene copolymer and a vinylidene fluoride resin is used. , Titanium oxide powder, calcium fluoride powder and the like.

  In a double-folded folded-plate roof of a certain building where noise is generated, the joint ends 4a, 4a of the folded-plate roof plates 4, 4 of the upper-folded folded roof 2 are actually as described above. The lubricant 7 is applied between the contact surfaces of each other, and a movable metal fitting 6 is provided that can freely slide the joint ends 4a and 4a of the folded roof plates 4 and 4 in the length direction of the folded roof plate 4. As a result of carrying out the countermeasure work of supporting on the lower folded plate roof 1 with the roof plate support member 71, the sound of up to 75 dBA occurred before the countermeasure, but after the countermeasure 50 dBA It was confirmed that no noise was generated, including a slight noise.

  As shown in FIGS. 5 to 7, the soundproof structure for a folded-plate roof according to the present invention can be applied to a single-folded folded-plate roof as shown in FIGS. In this case, as shown in FIG. 5, the single-fold folded plate roof is formed by joining the joint ends 4 a and 4 a of the adjacent metal folded plate roof plates 4 and 4 together, and this is tightened. The joint ends 4a and 4a are roof plate support members each having a movable bracket (hanger) 21 slidable in the length direction (ridge direction) of the folded plate roof plate 4 on the beam (base material) 20. 72 is supported. As shown in FIG. 7, the lubricant 7 is provided between the contact surfaces of the joint ends 4 a and 4 a of the adjacent folded roof plates 4.

  The roof plate support member 72 includes a bifurcated fixing member 23 having a pair of holding pieces 22 and 22 fixed on the beam 20, and a lower end portion held between the holding pieces 22 and 22 of the fixing member 23. A movable metal fitting 21 and a fastener 24 made of a bolt, nut or the like with a lower end portion of the movable metal fitting 21 fastened and fixed between sandwiching pieces 22 of the fixing member 23 are provided. As shown in FIG. 6, a long hole 26 is formed in the movable metal fitting 21, and the movable metal fitting 21 can slide in the length direction of the folded roof plate 4 by loosely fitting a fastener 24 in the long hole 26. Is attached. As shown in the partially enlarged view of FIG. 5, the joint ends 4 a, 4 a of the adjacent folded plate roof plates 4, 4 are fastened with a hook-shaped upper end portion 21 a of the movable metal member 21 interposed therebetween.

Also in this embodiment, the movable fitting 21 is slidable in the longitudinal direction of the folded roof plate 4 on the beam 20 with the joint ends 4a, 4a, which are fastened to the adjacent folded roof plates 4, 4, being fastened together. Therefore, when the temperature change occurs in the folded roof plate 4 and the heat is expanded and contracted, the movable bracket 21 of the roof plate supporting member 72 is fastened together with the folded roof plate 4. Therefore, as the folded roof plate 4 is thermally expanded and contracted, it slides on the fixing member 23. Due to this sliding, internal stress is unlikely to occur in the folded roof plate 4, and it is possible to prevent the generation of noise caused by a sudden movement when stress exceeding the restraint at the support fixing portion by the roof plate support member 72 is generated. .
The lubricant 7 is applied to both the outer side of one joining end (small hull) 4a and the inner side of the other joining end (large hose) 4a or the Prepared by applying to one side. Thereby, even if the joint ends 4a and 4a of the adjacent folded roof plates 4 and 4 slide relative to each other by thermal expansion and contraction, the friction reducing action by the lubricant 7 provided between the contact surfaces of the joint ends 4a and 4a. Therefore, it is possible to prevent the generation of frictional noise due to relative sliding.
Further, as shown in the partially enlarged view of FIG. 5, the upper end of the movable fitting 21 is reduced in order to reduce the generation of sound due to sliding friction between the contact surfaces of the movable fitting 21 and the joint end 4 a of the folded roof plate 4. The lubricant 7 is also applied to both the inner and outer surfaces of 21a or one surface thereof.

  As shown in FIG. 8 to FIG. 12, the soundproof structure of the folded-plate roof of the present invention is obtained by rolling a fitting-type upper folding plate roof 32 on the fitting-type lower folding plate roof 31. It can also be applied to double folded plate roofs. As shown in FIGS. 8 and 9, the upper folding plate roof 32 is formed on the outer side of the joint end 34 a that is bent into one cross-sectional mountain shape of the adjacent metal folded-plate roof plates 34, 34, and the other cross-sectional mountain. The joint ends 34a bent into a shape are fitted and connected, and the joint ends 34a and 34a fitted to each other are fitted with the folded roof plates 35 and 35 of the lower folded roof 31 as a base material. It is supported on the joined ends 35a, 35a via a roof plate support member 73 provided with a movable metal fitting 36 slidable in the length direction of the folded plate roof plate 34. As shown in FIG. 11, the lubricant 7 is provided between the contact surfaces of the joining ends 34 a and 34 a of the adjacent folded plate roof plates 34 of the upper folded plate roof 32.

  As shown in FIGS. 8 and 9, the roof plate support member 73 is a pair of fixing members that sandwich the joint ends 35 a and 35 a of the folded plate roof plates 35, 35 of the lower folding plate roof 31. 38, 38, a synthetic resin heat insulating member 40 sandwiched between fixing member upper end portions 38a, 38a extending upward from the joint ends 35a, 35a of the fixing members 38, 38, and a fixing member upper end portion 38a, Fasteners 39 such as bolts, nuts, and the like with the heat insulating member 40 fastened and fixed between 38a. A movable metal fitting 36 is slidably attached to the upper end surface of the heat insulating member 40 with a fastener 41 such as a bolt or nut. The movable metal fitting 36 is formed in the shape of a letter "H" having a cross section having a web 36a, flanges 36b and 36b rising from both ends of the web 36a, and a locking edge 36c projecting outward from the upper end of each flange 36b. As shown in FIG. 4, a long hole 43 is formed in the web 36a, and the fastener 41 is loosely fitted in the long hole 43 so that the movable bracket 36 slides on the upper end surface of the heat insulating member 40 in the length direction of the folded roof plate 34. It is mounted movably. As shown in FIG. 12, the joint ends 34 a and 34 a fitted to the adjacent folded plate roof plates 34 and 34 of the upper folded plate roof 32 are fitted and engaged with the movable metal fitting 36.

  Also in this embodiment, the joint ends 34a, 34a fitted to the adjacent folded plate roof plates 34, 34 can be slid in the longitudinal direction of the folded plate roof plate 34 on the lower folded plate roof 31. Since it is supported by the roof plate support member 73 provided with the movable metal fitting 36, when the temperature change occurs in the folded plate roof board 34 and is thermally expanded and contracted, the movable metal fitting 36 of the roof plate support member 73 is connected to the folded plate roof board 34. Since it is integral by fitting and engaging, it slides on the heat insulating member 40 with the thermal expansion and contraction of the folded roof plate 34. Due to this sliding, internal stress is unlikely to be generated in the folded-plate roof plate 34, and the generation of noise due to a sudden movement when stress exceeding the constraint at the engagement and fixing portion with the roof plate support member 73 is generated. Can be prevented.

The lubricant 7 is provided by applying the lubricant 7 to the outside of one joint end 34a to which the adjacent folded plate roof plates 34, 34 are fitted and the inside of the other joint end 34a or one of them. As a result, even if the joint ends 34a, 34a of the adjacent folded roof plates 34, 34 slide relative to each other due to thermal expansion and contraction, the frictional noise caused by the relative sliding of the joint ends 34a, 34a due to the friction reducing action of the lubricant 7 occurs. Sound can be prevented.
Further, in order to reduce the generation of sound due to sliding friction between the contact surfaces of the movable metal fitting 36 and the joint end 34a of the folded roof plate 34, the outer surface of the engaging edge 36c of the movable metal fitting 36 or the joint end 34a. Lubricant 7 is applied inside.

  As shown in FIGS. 13 to 17, the soundproofing structure for a folded-plate roof according to the present invention can also be applied to a single-folded folded-plate roof of a fitting type. In this case, as shown in FIGS. 13 and 14, the single-fold folded plate roof is formed by fitting joint ends 34 a and 34 a that are bent into a mountain-shaped cross section of adjacent metal folded plate roof plates 34 and 34. The joined joint ends 34a, 34a are connected to each other, and the roof plate support is provided with a movable metal fitting 51 that is slidable in the length direction of the folded roof plate 34 on the beam 20 as a base material. It is supported via a member 74. As shown in FIG. 16, the lubricant 7 is provided between the contact surfaces of the joining ends 34a, 34a of the adjacent folded roof plates 34, 34.

  As shown in FIG. 13 and FIG. 14, the roof plate support member 74 is fixed on the beam 20, and is fixed to a mountain-shaped fixing member 53, and the folded roof plate 34 is formed on the top of the fixing member 53. And a movable metal fitting 51 having the same shape as the movable metal fitting 36 of FIG. 6, which is slidably attached in the length direction via a fastener 54 such as a bolt and a nut. The movable metal fitting 51 is formed in the shape of a letter "H" in cross section having a web 51a, flanges 51b and 51b rising from both ends of the web 51a, and a locking edge 51c projecting outward from the upper end of each flange 51b. A long hole 55 is formed, and the movable bracket 51 is slidably attached to the top of the fixed member 53 in the length direction of the folded roof plate 34 by loosely fitting the fastener 54 into the long hole 55. ing. As shown in FIG. 17, the joint ends 34 a and 34 a of the adjacent folded roof plates 34 and 34 are fitted and engaged with the movable metal fitting 51.

  Also in this embodiment, since the joint ends 34a, 34a of the adjacent folded plate roof plates 34, 34 are connected to each other are supported by the roof plate support member 74 provided with the movable bracket 51 on the beam 20. When the temperature change occurs in the folded roof plate 34 and the heat is expanded and contracted, the movable bracket 51 of the roof plate supporting member 74 is integrated with the folded roof plate 34 so that the folded roof plate 34 is integrated. As the heat expands and contracts, the sliding member 53 slides. Due to this sliding, internal stress is unlikely to occur in the folded roof plate 34, and it is possible to prevent noise caused by sudden movement when stress exceeding the restraint at the support fixing portion by the roof plate support member 74 is generated.

The lubricant 7 is provided by being applied to both or one of the outer side of one joint end 34a and the inner side of the other joint end 34a to which the adjacent folded plate roof plates 34 and 34 are fitted. As a result, even if the joint ends 34a, 34a of the adjacent folded roof plates 34, 34 slide relative to each other due to thermal expansion and contraction, the frictional noise caused by the relative sliding of the joint ends 34a, 34a due to the friction reducing action of the lubricant 7 occurs. Sound can be prevented.
In addition, as shown in FIG. 17, the engagement of the movable metal fitting 51 is reduced in order to reduce the generation of sound due to sliding friction between the contact surfaces of the locking edge 51c of the movable metal fitting 51 and the joint end 34a of the folded roof plate 34. The lubricant 7 is also applied to the outer surface of the stop edge 51c.

  As shown in FIGS. 18 and 19, the soundproof structure for a folded-plate roof according to the present invention is obtained by butt-joining one joining end 60 a and the other joining end 60 a of adjacent folded-plate roof boards 60, 60. In addition, the joint ends 60a, 60a that are butt-joined are covered with a cap 61 having a long cross-sectional partial arc shape that is long in the length direction of the folded roof plate 60, and the butt-joined joint ends 60a. , 60a are supported by a roof plate support member 75 provided with a movable bracket 62 slidable in the longitudinal direction of the folded roof plate 60 on the beam 20 as a base material. Applicable to form.

As shown in FIG. 18, the roof plate support member 75 includes a mountain-shaped fixing member 63 fixed on the beam 20 and a folded roof plate with a fastener 64 such as a bolt and a nut on the top of the fixing member 63. The movable metal fitting 62 is mounted so as to be slidable in the length direction 60, and has the same shape and attachment procedure as the movable metal fitting 51 shown in FIGS.
As shown in FIG. 19, the lubricant 7 is provided between the butted joint surfaces 60a, 60a of the adjacent folded plate roofs 60, 60, and the sliding between the contact surfaces of the joint ends 60a, 60a is performed. The generation of sound due to dynamic friction is prevented. Also, the lubricant 7 is provided only on the inner surface of the cap 61, or on the contact surface with the cap 61 in the vicinity of the joint ends 60a and 60a and the inner surface of the cap 61, and between the contact surfaces between the cap 61 and the joint end 60a. Prevents noise from friction. Furthermore, as shown in the partially enlarged view of FIG. 18, in order to reduce the generation of sound due to sliding friction between the contact surfaces of the movable metal fitting 62 and the joint end 60a of the folded roof plate 60, the outer surface of the movable metal fitting 62 is used. Alternatively, the lubricant 7 is also applied to the contact surface with the movable metal fitting 62 near the joint end 60a.

It is a vertical front view of the principal part of the soundproof structure of the folded-plate roof which shows one Example of this invention. FIG. 2 is a cross-sectional view of a fastening portion between joint ends of the folded plate roof board of FIG. 1. It is a perspective view of the roof-plate support member containing the movable metal fitting with which the noise prevention structure of FIG. 1 was equipped. It is a perspective view of the lubricant application base material of a reference example . It is a vertical front view of the principal part of the soundproof structure of the folded-plate roof which shows another Example. FIG. 6 is a side view of a movable metal fitting provided in the noise preventing structure of FIG. 5. FIG. 6 is a cross-sectional view of a fastening portion between joint ends of the folded plate roof board of FIG. 5. It is a vertical front view of the principal part of the sound-noise prevention structure of the folded-plate roof which shows other Example. It is a side view of the roof-plate support member containing the movable metal fitting with which the noise prevention structure of FIG. 8 was equipped. It is a top view of the movable metal fitting with which the noise prevention structure of FIG. 8 was equipped. It is sectional drawing of the fitting part of the joining ends of the folded-plate roof board of FIG. It is an enlarged view in the A section of FIG. Furthermore, it is a vertical front view of the principal part of the soundproof structure of the folded-plate roof which shows another Example. It is a side view of the roof-plate support member containing the movable metal fitting with which the noise prevention structure of FIG. It is a top view of the roof-plate support member containing the movable metal fitting with which the noise prevention structure of FIG. 13 was equipped. It is sectional drawing of the fitting part of the joining ends of the folded-plate roof board of FIG. It is an enlarged view in the B section of FIG. Furthermore, it is a vertical front view of the principal part of the soundproof structure of the folded-plate roof which shows another Example. It is sectional drawing of the butt | joining junction part of the joining ends of the folded-plate roof board | plate of FIG. 18, and a cap.

Explanation of symbols

1,31 Shimojo folded plate roof (base material)
4, 34, 60 Folded plate roof 4a, 34a, 60a Joint ends 71-75 Roof plate support member 6, 21, 36, 51, 62 Movable bracket 7 Lubricant 20 Beam (underlying material)
61 cap

Claims (9)

Folded plate roof that supports the joint ends of adjacent metal folded plate roof plates on a base material via a roof plate support member provided with a movable bracket that is slidable in the length direction of the folded plate roof plate In
A structure for preventing noise from being produced on a folded-plate roof, wherein a lubricant is applied between contact surfaces of the joined ends of the folded-plate roof. The joint ends of the folded plate roof plates are connected by fastening the joined end of one folded plate roof plate and the joined end of the other folded plate roof plate, and lubricates between the contact surfaces of the joined ends. The soundproofing structure of the folded-plate roof of Claim 1 which has apply | coated the agent. The joint ends of the folded plate roof boards are fitted and connected to the joint ends of the other folded plate roof boards on the outside of the joined ends of the one folded board roof board, and lubrication is performed between the contact surfaces of the joined ends. The soundproofing structure of the folded-plate roof of Claim 1 which has apply | coated the agent. The folded-plate roof boards are butt-joined to each other at the joint end of one folded-plate roof board and the joined end of the other folded-plate roof board, and a lubricant is applied between the butt-joint surfaces. The sound-preventing structure for folded-plate roof according to claim 1. 5. The soundproofing structure for a folded-plate roof according to claim 1, wherein the lubricant is also applied between contact surfaces of the movable metal fitting and the joined end of the folded-plate roof. . 5. The soundproofing of the folded plate roof according to claim 4, wherein a cap is put on the joint ends joined to each other, and the lubricant is applied also between contact surfaces between the cap and the vicinity of the joint end. Construction.   The soundproof structure for folded plate roof according to any one of claims 1 to 6, wherein the lubricant is a dry film lubricant comprising a solid lubricant and a binder thereof.   The soundproof structure for folded plate roof according to any one of claims 1 to 6, wherein the lubricant contains polytetrafluoroethylene resin powder as a solid lubricant.   The lubricant comprises a dry film lubricant containing no polytetrafluoroethylene resin powder to be primed and a dry film lubricant containing polytetrafluoroethylene resin powder to be overcoated thereon. 6. The soundproof structure for folded-plate roof according to any one of 6 above.

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