Fastener receiving member for folded plate roof, fastener member, renovated roof structure using same, and roof renovation method

Abstract

To provide a folded plate roof fastener receiving member that allows one to easily and firmly fix a new folded plate roof on top of an existing folded plate roof, a fastener member, a structure of repaired roof using the same, and a roof repair method.SOLUTION: Provided is a fastener receiving member used to fix a fastener for a new folded plate roof on an existing folded plate roof, which is constructed by connecting roof panels to each other at a seam fastening portion provided at a peak of a folded plate roof. The fastener receiving member includes: a fastener fixing portion that is arranged above the peak of the existing folded plate roof so as to cover the seam fastening portion, and is formed to be able to fix the fastener of the new folded plate roof; and a pair of support portions that extends downward from both sides of the fastener fixing portion so as to sandwich the peak of the existing folded plate roof, and is formed to be able to be fixed in surface contact with both side surfaces of the peak of the existing folded plate roof.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a fastener receiving member for a folded-plate roof, a fastener member, a repaired roof structure using the same, and a roof repair method. [Background technology]

[0002] When an existing folded-plate roof deteriorates due to corrosion or other reasons, one renovation method involves leaving the existing folded-plate roof in place and installing a new folded-plate roof on top of it. This renovation method does not require the removal of the existing folded-plate roof, which saves labor, shortens the process, and reduces costs. In addition, there is no risk of dust scattering or falling components that occurs when removing the existing folded-plate roof, and there is no need to dispose of the removed materials, which is advantageous in terms of ensuring the safety of the renovation work and protecting the environment.

[0003] Patent Documents 1 and 2 disclose a renovation method for installing a new folded-plate roof on top of an existing folded-plate roof by attaching mounting hardware for the new folded-plate roof to the seam fastening portion of the existing folded-plate roof and fixing the new folded-plate roof to the mounting hardware. In these techniques, the mounting hardware is attached so as to sandwich the protrusions of the seam fastening portion of the existing folded-plate roof from both sides, and tabs provided on the top of the mounting hardware are fastened together to the seam fastening portion of the new folded-plate roof, thereby installing the new folded-plate roof on top of the existing folded-plate roof. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-035919 [Patent Document 2] Patent Publication No. 2021-110090 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the renovation methods disclosed in Patent Documents 1 and 2, the mounting hardware for the new folded-plate roof is attached so as to sandwich the seam fastenings of the existing folded-plate roof, making it difficult to ensure sufficient fixing strength for the new folded-plate roof. For example, if the roof is subjected to uplift pressure during strong winds such as a typhoon, and a large pulling force acts on the mounting hardware for the new folded-plate roof, the protrusions on the seam fastenings of the existing folded-plate roof may be significantly deformed, causing the fittings that sandwich the seam fastenings of the existing folded-plate roof to loosen and come off.

[0006] In particular, if the protrusions at the seam fastening points of the existing folded-plate roof are small, it is extremely difficult to ensure sufficient fixing strength for the newly installed folded-plate roof.

[0007] The present invention has been made to solve the above problems, and aims to provide a fastener receiving member for a folded plate roof, a fastener member, and a renovated roof structure using the same, which can easily and firmly fix a new folded plate roof on an existing folded plate roof. An object of the present invention is to provide a roof renovation method. [Means for solving the problem]

[0008] The means for solving the above problems are as follows. [1] A fastener receiving member used to secure fasteners for a new folded-plate roof on an existing folded-plate roof constructed by connecting roof panels together at seam fastening portions provided in the peak portions of the folded-plate roof, the fastener receiving member having a fastener fixing portion arranged above the peak portion of the existing folded-plate roof to cover the seam fastening portion and formed so as to be able to secure the fasteners of the new folded-plate roof, and a pair of support portions extending downward from both sides of the fastener fixing portion to sandwich the peak portion of the existing folded-plate roof and formed so as to be able to be fixed in a state of face-to-face contact with both sides of the peak portion of the existing folded-plate roof. [2] The fastener receiving member described in [1], wherein both side surfaces of the peak portion of the existing folded plate roof are inclined so that the width of the peak portion decreases from bottom to top, and the support portion is inclined so as to be in surface contact with both side surfaces of the peak portion of the existing folded plate roof. [3] The fastener receiving member according to [1] or [2], wherein the support portion and the fastener fixing portion are formed by bending a flat plate. [4] When the support portion is fixed in a state of face contact with both sides of the peak portion of the existing folded plate roof, the support portion further has a positioning portion formed to abut against the upper surface of the peak portion of the existing folded plate roof. A fastener receiving member described in any one of [1] to [3]. [5] A fastener receiving member as described in [1] or [2], further having a positioning portion formed to abut against the upper surface of the peak portion of the existing folded plate roof when the support portion is fixed in a state of face contact with both side surfaces of the peak portion of the existing folded plate roof, wherein the support portion, the fastener fixing portion, and the positioning portion are formed by bending a flat plate. [6] The extension length of the positioning portion is formed to a dimension that allows it to fit into the recess at the base of the seam fastening portion of the existing folded plate roof. A fastener receiving member as described in [4] or [5]. [7] A fastener member in which a fastener of the newly constructed folded plate roof is fixed to the fastener fixing portion of the fastener receiving member described in any one of [1] to [6]. [8] The newly constructed corrugated roof is constructed by connecting roof panels to each other at seam fastening portions provided at the peak portions of the corrugated roof, and the fastener of the newly constructed corrugated roof has a tab that is fastened to the seam fastening portion of the newly constructed corrugated roof, and a fastener body that supports the tab so that it can slide in a direction along the seam fastening portion of the newly constructed corrugated roof, as described in [7]. [9] The fastener member according to [8], wherein the lower part of the tab is wound around a sliding shaft provided on the fastener body, thereby making the tab slidable.

[10] A fastener member described in any one of [7] to [9], wherein the fastener of the newly installed folded plate roof is fixed to the fastener fixing portion of the fastener receiving member with a screw.

[11] A structure of a renovated roof in which the new folded plate roof is installed on the existing folded plate roof via the fastening member described in any one of [7] to

[10] .

[12] A renovated roof structure as described in

[11] , in which a roof material support rail supporting the valley portion of the newly installed folded plate roof is erected on top of the fastener fixing portion of the fastener receiving member.

[13] The structure of the renovated roof described in

[12] , wherein the roof material support rail has a Z-shaped cross-sectional shape.

[14] A renovated roof structure described in

[12] or

[13] , in which the valley portion of the eaves portion of the newly installed folded plate roof is fixed to the roof material support rail.

[15] A renovated roof structure described in any one of

[11] to

[14] , wherein the support portion of the fastener receiving member is fixed to both side surfaces of the peak portion of the existing folded plate roof by a blind fastener.

[0009] Here, a blind fastener refers to a fastener that is fastened only from the front side of the fastened parts, with the tip of the fastener expanding laterally on the back side of the fastened parts, thereby fastening the fastened parts. Specifically, with the blind fastener inserted into a hole in the fastened parts, the fastener tip is deformed by being pulled toward the user, for example, by pulling out the mandrel connected to the fastener tip or by threading a screw into a threaded hole in the fastener tip. As a result, the fastener tip expands laterally and engages with the back side of the fastened parts, thereby fastening the fastened parts. Specific examples of blind fasteners include blind rivets, valve-tight rivets, clips such as push-button clips, pop nuts, jack nuts, well nuts, and screw grommets.

[16] A roof renovation method in which a new folded-plate roof is installed on top of an existing folded-plate roof constructed by connecting roof panels to each other at seam fastening parts provided on the peaks of the folded-plate roof, wherein the support parts of the fastener receiving member described in any of [1] to [6] are fixed to both side surfaces of the peaks of the existing folded-plate roof, fastening fasteners of the new folded-plate roof to the fastener fixing parts of the fastener receiving member, and seaming the ends of adjacent roof panels of the new folded-plate roof together with tabs provided on the fasteners, thereby connecting the roof panels to each other and fixing them to the fasteners. [Effects of the Invention]

[0010] According to the fastener receiving member for a folded-plate roof, the fastener member, the renovated roof structure using the same, and the roof renovation method of the present invention, a pair of support portions of the fastener receiving member used to secure the fasteners of the new folded-plate roof are fixed in face-to-face contact with both sides of the peak portion of the existing folded-plate roof so as to sandwich the peak portion of the existing folded-plate roof. Therefore, the new folded-plate roof can be easily and firmly fixed on top of the existing folded-plate roof without being affected by the size and shape of the seam fastening portions of the roof panels of the existing folded-plate roof. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a cross-sectional view showing an example of a fastener receiving member for a folded-plate roof, a fastener member, a structure of a repaired roof using the same, and a method of repairing a roof according to the present invention. [Figure 2] FIG. 2 is a side view showing an example of the fastener receiving member and fastener member for a folded-plate roof of the present invention, the structure of a repaired roof using these, and a roof repair method. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, with reference to the drawings, an embodiment of the fastener receiving member for a folded plate roof, the fastener member, the structure of a repaired roof using the same, and the roof repair method of the present invention will be specifically described.

[0013] FIG. 1 is a cross-sectional view showing a fastener receiving member for a folded-plate roof, a fastener member, the structure of a renovated roof using the same, and a method of renovating a roof, and FIG. 2 is a side view of FIG.

[0014] The fastener receiving member, fastener member, and renovated roof structure using the same, as well as the roof renovation method of this embodiment, are used to fix a new folded-plate roof 4 on an existing folded-plate roof 2 in order to renovate the existing folded-plate roof 2. <Existing folded plate roof> As shown in Figures 1 and 2, the existing folded plate roof 2 is constructed by connecting the ends of adjacent roof panels 21 by seam fastening at seam fastening portions 22 provided on the peak portions 2a of the existing folded plate roof 2.

[0015] The existing folded-plate roof 2 is fixed to the purlin 23 made of lightweight lip Z-shaped steel by a fastener 3 fastened with a screw 81. The fastener 3 is made of a U-shaped metal fitting and comprises a fastener body 31 fixed to the purlin 23, and a tab 32 supported by the fastener body 31 and co-fastened to the seam fastening portion 22 of the existing folded-plate roof 2. A sliding shaft 31a is provided on the upper part of the fastener body 31, and the lower part of the tab 32 is wrapped around this sliding shaft 31a, allowing the tab 32 to slide along the sliding shaft 31a.

[0016] Sleeves 31b are provided on both sides of the sliding shaft 31a at the portion around which the tab 32 is wound, and during construction of the existing folded-plate roof 2, the tab 32 is held in its initial position at the center of the sliding shaft 31a. When the roof panel 21 expands and contracts due to temperature changes, the tab 32, which is co-fastened to the seam fastening portion 22 of the roof panel 21, slides along the sliding shaft 31a. At this time, the sleeve 31b, pushed by the tab 32, is designed to disengage from the sliding shaft 31a, so the sliding of the tab 32 is not impeded. In this way, the existing folded-plate roof 2 has a structure that can prevent buckling or deformation of the roof panel 21, which expands and contracts due to temperature changes, by being restrained by the fasteners 3, without the need for special expansion joints or the like.

[0017] In addition, insulating spacers 24 and glass wool 25 are sandwiched between the valley portion 2b of the existing folded-plate roof 2 and the main building 23, ensuring insulation above and below the existing folded-plate roof 2. <Fastener receiving member> As shown in Figure 1, the fastener receiving member 7 of this embodiment is formed by bending a flat plate into a U-shape, and includes a fastener fixing portion 71, a pair of support portions 72, 73 provided on both sides thereof, and a pair of positioning portions 74, 75.

[0018] Specifically, in this embodiment, as shown in Fig. 1, both side surfaces 2as of the peak portion 2a of the existing folded-plate roof 2 are inclined so that the width of the peak portion 2a decreases from bottom to top. Both sides of the fastener fixing portion 71 of the fastener receiving member 7 extend vertically downward so as to sandwich the peak portion 2a of the existing folded-plate roof 2. Furthermore, the lower portions of these extending portions are bent so as to open at the same angle as both side surfaces 2as of the peak portion 2a of the existing folded-plate roof 2, thereby providing a pair of support portions 72, 73.

[0019] Furthermore, as shown in Figures 1 and 2, a U-shaped notch is formed in the extension portion extending vertically downward from both sides of the fastener fixing portion 71 of the fastener receiving member 7, and the inner portion of this notch is folded in to provide a pair of positioning portions 74, 75.

[0020] When this fastener receiving member 7 is fitted from above into the peak portion 2a of the existing folded plate roof 2, as shown in FIG. 1, a pair of positioning portions 74, 75 of the fastener receiving member 7 abuts against the upper surface of the peak portion 2a of the existing folded plate roof 2. As a result, the fastener fixing portion 71 is positioned above the peak portion 2a of the existing folded plate roof 2 so as to cover the seam portion 22 while separated from the seam portion 22, thereby positioning the fastener receiving member 7 in the height direction relative to the existing folded plate roof 2. In this state, the pair of support portions 72, 73 of the fastener receiving member 7 are in surface contact along both side surfaces 2as of the peak portion 2a of the existing folded plate roof 2. Since the pair of support portions 72, 73 of the fastener receiving member 7 are fixed to both side surfaces 2as of the peak portion 2a of the existing folded plate roof 2, the fastener receiving member 7 can be easily and firmly fixed to the peak portion 2a of the existing folded plate roof 2. The same effect can be obtained even if the number of positioning portions provided on the fastener receiving member is one.

[0021] Here, as shown in Figures 1 and 2, if a pair of support portions 72, 73 of the fastener receiving member 7 are fastened to both side surfaces 2as of the peak portion 2a of the existing folded-plate roof 2 using blind fasteners such as valve tight rivets 82, it is preferable because the fastener receiving member 7 can be easily and firmly fixed to the peak portion 2a of the existing folded-plate roof 2 by working only from the above of the existing folded-plate roof 2.

[0022] 1, the extension length 74L of one of the positioning portions 74, 75 is formed to a dimension that fits into the recess 22a at the base of the seam fastening portion 22 of the existing folded plate roof 2. This is preferable because it further increases the fixing strength of the fastener receiving member 7 to the existing folded plate roof 2. <Fastener components> The fastener member 5 of this embodiment is configured by fastening and fixing the fastener 6 of the newly installed folded plate roof 4, which will be described later, to the fastener fixing portion 71 of the fastener receiving member 7 with a screw 81. In this way, the fastener 6 of the newly installed folded plate roof 4 can be firmly fixed to the fastener fixing portion 71 of the fastener receiving member 7. Therefore, when the newly installed folded plate roof 4 is subjected to blow-up pressure during strong winds such as a typhoon, it is possible to ensure sufficient strength against the large pulling force acting on the fastener 6 of the newly installed folded plate roof 4, which is preferable because it prevents damage to the roof.

[0023] The newly constructed folded plate roof 4 is constructed in the same manner as the existing folded plate roof 2, with the ends of adjacent roof panels 41 connected by seam fastening at seam fastening portions 42 provided on the peak portions 4a of the newly constructed folded plate roof 4.

[0024] The fastener 6 of the fastener member 5 has the same structure as the fastener 4 of the existing folded-plate roof 2 described above. That is, the fastener 6 comprises a fastener body 61 made of a U-shaped metal fitting and fixed onto the fastener fixing portion 71 of the fastener receiving member 7, and a tab 62 supported by this fastener body 61 and co-fastened to the seam fastening portion 42 of the newly installed folded-plate roof 4. A sliding shaft 61a is provided on the upper part of the fastener body 61, and the lower part of the tab 62 is wrapped around this sliding shaft 61a, allowing the tab 62 to slide along the sliding shaft 61a.

[0025] Sleeves 61b are provided on both sides of the sliding shaft 61a at the portion around which the tab 62 is wound, and the tab 62 is held in an initial position in the center of the sliding shaft 61a when the new folded-plate roof 4 is constructed. When the roof panel 41 expands and contracts due to temperature changes, the tab 62, which is co-fastened to the seam fastening portion 42 of the roof panel 41, slides along the sliding shaft 61a. At this time, the sleeve 61b, which is pushed by the tab 62, is designed to come off the sliding shaft 61a, so the sliding of the tab 62 is not impeded.

[0026] In the renovation methods disclosed in Patent Documents 1 and 2, the components that make up the mounting hardware for the new folded-plate roof are placed on both sides of the seam of the existing folded-plate roof and integrated by fastening them with bolts or the like, which tends to generate large frictional forces between the tabs that are fastened together with the seam of the new folded-plate roof and the mounting hardware that holds these tabs in place. As a result, the new folded-plate roof expands and contracts due to temperature changes, but is constrained by the mounting hardware and tabs, preventing free deformation and making it susceptible to buckling deformation.

[0027] In contrast, in this embodiment, the tabs 62 are slidable along the sliding shafts 61a, so the roof panels 41 of the newly installed folded-plate roof 4, which expand and contract due to temperature changes, are not constrained by the fasteners 6. This is preferable because it prevents damage such as buckling and deformation of the roof panels 41 and greatly improves the durability of the newly installed folded-plate roof 4. <Renovated roof structure> The structure of the repaired roof in this embodiment is constructed by installing a new folded-plate roof 4 on an existing folded-plate roof 2 via the fastening members 5 described above.

[0028] As shown in FIGS. 1 and 2, a roofing material support rail 83 supporting the flat portion of the valley portion 4b of the newly installed folded-plate roof 4 is installed on the fastener fixing portion 71 of the fastener receiving member 7 and fastened and fixed with a screw 81. In this manner, the valley portion 4b of the newly installed folded-plate roof 4 is supported by the roofing material support rail 83. Therefore, even if the newly installed folded-plate roof 4 has few irregularities and the flat portion of the valley portion 4b has a large area, this is preferable because it prevents deflection and bending of the roof panel 41 of the newly installed folded-plate roof 4 due to its own weight, snow load, wind pressure, etc. In other words, by using the roofing material support rail 83 that supports the valley portion 4b of the newly installed folded-plate roof 4 as in this embodiment, it is possible to apply the present invention to a newly installed folded-plate roof 4 with few irregularities. Of course, it goes without saying that the present invention can also be applied to a newly installed folded-plate roof 4 with many irregularities and high bending strength and bending rigidity.

[0029] Then, only in the eaves portion of the new folded plate roof 4, the valley portion 4b of the new folded plate roof 4 is fixed to the roof material support rail 83. This is preferable because it can further increase the fixing strength of the new folded plate roof while saving labor in the installation work of the new folded plate roof 4.

[0030] In addition, the roof material support rails 83 are made of lightweight Z-shaped steel with a Z-shaped cross section. This is preferable because it ensures sufficient bending strength and bending rigidity of the roof material support rails 83, which support the valley portions 4b of the newly installed folded plate roof 4, and further prevents deflection and bending of the roof material support rails 83 and the roof panels 41 of the newly installed folded plate roof 4. <Roof repair method> The roof renovation method of this embodiment involves installing a new folded-plate roof 4 on top of an existing folded-plate roof 2, which is constructed by connecting the ends of adjacent roof panels 21 at seam fastening portions 22 provided on the peak portions 2a of the folded-plate roof.

[0031] Specifically, the support portions 72, 73 of the fastener receiving member 7 described above are fixed to both side surfaces 2as of the peak portion 2a of the existing folded plate roof 2. Then, the fastener 6 of the new folded plate roof 4 is fixed to the fastener fixing portion 71 of the fastener receiving member 7. Furthermore, the ends of adjacent roof panels 41 of the new folded plate roof 4 are fastened together with tabs 62 provided on the fastener 6 to form a fastening portion 42, connecting the roof panels 41 to each other and fixing them to the fastener 6. [Explanation of symbols]

[0032] 1. Renovated roof 2 Existing folded plate roof 2a Mountain part of existing folded plate roof 2as Both sides of the mountain part of the existing folded-plate roof 2b Valley of existing folded-plate roof 21 Roof Panel 22 Seam fastening part 22a Recess at the base of the seam fastening 23 Main house 24 Insulating spacer 25 Glass wool 3 Fasteners for existing folded-plate roofs 31 Fastener body 31a Sliding shaft 31b Sleeve 32 tabs 4. Newly constructed folded-plate roof 4a Newly constructed folded-plate roof 4b Valley of the newly constructed folded-plate roof 41 Roof Panel 42 Seam Closure 5 Fasteners 6 Fasteners for newly constructed folded plate roofs 61 Fastener body 61a Sliding shaft 62 tabs 7 Fastener receiving member 71 Fastener fixing part 72, 73 Support part 74, 75 Positioning part 74L Positioning part extension length 81 Screw 82 Valve Tight Rivet 83 Roofing material support rail

Claims

1. A fastener member used to fix a new folded plate roof fastener on an existing folded plate roof configured by connecting roof panels to each other at a seam fastening portion provided at the peak portion of the folded plate roof, A fastener fixing portion arranged above the mountain portion of the existing folded plate roof so as to cover the fastening portion and formed so as to be able to fix the fastener of the new folded plate roof; A pair of support parts extending downward from both sides of the fastener fixing part so as to sandwich the peak part of the existing folded plate roof and formed so as to be fixable in a state of being in surface contact with both side surfaces of the peak part of the existing folded plate roof; The fastener of the newly installed folded plate roof is fixed to the fastener fixing portion of the fastener receiving member, The newly constructed folded plate roof is configured by connecting roof panels to each other at seam fastening parts provided at the peak parts of the folded plate roof, The fastener of the newly installed folded plate roof has a tab that is fastened to the seam fastening portion of the newly installed folded plate roof, and a fastener body that supports the tab slidably in a direction along the seam fastening portion of the newly installed folded plate roof, The fastener member wherein a lower portion of the tab is wound around a sliding shaft provided on the fastener body, thereby making the tab slidable.

2. Both side surfaces of the mountain portion of the existing folded plate roof are inclined so that the width of the mountain portion decreases from bottom to top, The fastener member according to claim 1, wherein the support portion is inclined so as to make surface contact with both side surfaces of the peak portion of the existing folded plate roof.

3. The fastener member according to claim 1 or 2, wherein the support portion and the fastener fixing portion are formed by bending a flat plate.

4. When the support portion is fixed in a state of surface contact with both side surfaces of the peak portion of the existing folded plate roof, the existing folded plate roof further has a positioning portion formed to abut against the upper surface of the peak portion. The fastener member according to any one of claims 1 to 3.

5. When the support portion is fixed in a state in which it is in surface contact with both side surfaces of the mountain portion of the existing folded plate roof, it further has a positioning portion formed to abut against the upper surface of the mountain portion of the existing folded plate roof, The fastener member according to claim 1 or 2, wherein the support portion, the fastener fixing portion, and the positioning portion are formed by bending a flat plate.

6. The fastener member according to claim 4 or 5, wherein the extension length of the positioning portion is formed to a dimension such that it fits into a recess at the base of the seam fastening portion of the existing folded plate roof.

7. The fastener member according to any one of claims 1 to 6, wherein the fastener of the newly installed folded plate roof is fixed to the fastener fixing portion of the fastener receiving member with a screw.

8. A repair roof structure in which the new folded plate roof is installed on the existing folded plate roof via the fastener member according to any one of claims 1 to 7.

9. The repair roof structure according to claim 8, wherein a roof material support rail supporting a valley portion of the newly installed folded plate roof is installed on the fastener fixing portion of the fastener receiving member.

10. 10. The retrofit roof structure of claim 9, wherein the roofing material receiving rail has a Z-shaped cross-sectional shape.

11. The structure of a repaired roof according to claim 9 or 10, wherein a valley portion of the eaves portion of the newly installed folded plate roof is fixed to the roof material support rail.

12. The structure of a repair roof according to any one of claims 8 to 11, wherein the support portion of the fastener receiving member is fixed to both side surfaces of the peak portion of the existing folded plate roof by a blind fastener.

13. A roof renovation method in which a new folded plate roof is installed on an existing folded plate roof configured by connecting roof panels to each other at a seam fastening portion provided at the peak portion of the folded plate roof, The support portion of the fastener member according to any one of claims 1 to 7 is fixed to both side surfaces of the mountain portion of the existing folded plate roof, The fastener of the newly installed folded plate roof is fixed to the fastener fixing portion of the fastener receiving member, The ends of adjacent roof panels of the newly installed folded plate roof are fastened together with tabs provided on the fasteners to connect the roof panels to each other and secure them to the fasteners. A roof renovation method.

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