JP4993348B2 - Roof repair bracket and roof repair structure using the same - Google Patents

Description

  The present invention relates to a roof repair metal fitting for attaching a new roof material on a corrugated roof material such as an aging factory, and a roof repair structure using the metal fitting.

  After the war, corrugated slate plates made of asbestos mixed with cement have been used as roofing materials for buildings such as factories, which are cheap and have excellent fire resistance, water resistance, and durability. It has become necessary to perform repairs. Since repairs to replace existing corrugated slate plates need to be performed after the factory operation is stopped, usually the existing corrugated slate plates are left as they are and roofs such as new corrugated plates and folded plates are added to it. The repairing method of sticking the material is adopted.

As is well known, corrugated slate plates contain asbestos that adversely affects the human body, and the repair method that requires cutting the corrugated slate plates or drilling holes scatters and falls into the factory. Because there is a fear, it is not preferable. For this reason, the seat surface portion that covers the peak portion of the existing corrugated slate plate and the leg portions that extend downward from the left and right ends of the seat surface portion are integrally provided, and a step is provided at the left and right intermediate portions of the seat surface portion. A clamp metal fitting that has a stepped seat surface portion and a lower step seat surface portion and a through-hole is provided in the lower step seat surface portion, and this clamp fitting is installed on an existing corrugated slate plate so as to straddle the peak portion. Insert the upper end of the existing hook bolt that protrudes from the center into the through hole in the lower seat surface, and insert a leaf spring nut that is ring-shaped and protrudes from the inner periphery toward the center. A roof repair method has already been proposed in which the clamp fitting is fixed to the corrugated slate plate by locking the tip with the thread groove of the hook bolt, and the roof base material is installed on the high-level seat surface to attach the metal roof plate. (Patent Document 1) .
JP 2004-100239 A

  However, the roof repair method of the above-mentioned patent document 1 presses and fixes the clamp fitting with the leaf spring nut by fitting the leaf spring nut into the hook bolt and locking the tip of the claw to the thread groove of the hook bolt. For example, when the hook bolt is rusted and the thread and the thread groove are crushed, it is difficult to securely fix the clamp fitting by securely engaging the claws of the leaf spring nut with the thread groove. For this reason, when wind pressure or the like acts on the new roof plate, there is a problem that the clamp fitting is loose or, in the worst case, the clamp fitting is detached from the hook bolt and the roof plate is rolled.

  The present invention has been made under the circumstances described above, and the problem to be solved is to fix and fix securely and firmly by a simple mounting operation even if the existing roof material fixing bolts such as hook bolts are rusted. An object of the present invention is to provide a roof repair metal fitting that can be used and a roof repair structure using the metal fitting.

  In order to solve the above-mentioned problems, a roof repair bracket according to the present invention is a roof repair bracket that supports a purlin member for attaching a new roof member on an existing corrugated roof member, (1) A purlin support surface having a recess in which a bolt insertion hole for inserting a roof material fixing bolt projecting upward from an existing corrugated roof material and a plurality of screw insertion holes for inserting a screw for lifting a washer are formed, and the main material A support fitting made up of a pair of support legs formed by bending downward from both ends of the support surface, and (2) an opening through which the roofing material fixing bolt is inserted and a plurality of screw holes into which the screws for raising the washer are screwed are formed. A washer formed such that a plurality of caulking pieces projecting obliquely from the opening edge toward the upper center part have a gap between the caulking piece tips slightly larger than the thread diameter of the roof material fixing bolt; , (3 And a plurality of washers pulling screws pulling the washer is screwed from the screw insertion hole of the support bracket into the screw hole of the washer and is characterized by comprising a.

  In the roof repair metal fitting of the present invention, a plurality of sub washers interposed between the support metal fitting and the washer projecting obliquely upward from the mouth edge of the opening through which the roof material fixing bolt is inserted. It is preferable that the caulking piece further includes a sub washer formed so as to have an interval between the caulking piece tips slightly larger than the thread diameter of the roof material fixing bolt. Then, the four caulking pieces protrude obliquely from the opening edge toward the center, and the caulking piece tip side is curved so that the inclination angle of the caulking piece tip side gradually decreases. It is preferable.

  The roof repair structure according to the present invention is a roof repair structure using the above-described roof repair bracket of the present invention, and roof material fixing bolts projecting upward from an existing corrugated roof material to an opening of a washer are provided. The roof material fixing bolts are inserted into the bolt insertion holes of the support metal fittings that are inserted and covered from above, and the support leg portions of the support metal fittings are placed in the valleys of the existing corrugated roof material, The plurality of washer crimping pieces pulled up by the plurality of washer lifting screws respectively screwed into the plurality of screw holes of the washer from the screw insertion holes of the washer press against the lower surface of the concave portion of the support fitting, and the center of the washer opening The roof repair metal fittings are attached and fixed by pressing the roof material fixing bolts from the outside with the ends of the caulking pieces pressed from the outside. New roofing materials It is characterized in that the purlins member is attached for attaching Ri.

  In the roof repair structure of the present invention, the sub washer is interposed between the support metal fitting and the washer, the roof material fixing bolt is inserted into the opening of the sub washer, and the plurality of caulking pieces of the sub washer are also in the center of the opening. It is preferable that the end of each caulking piece presses the roof material fixing bolt from the outside.

  The roof repair metal fitting of the present invention is used after being fixedly mounted in the following manner. That is, the roof material fixing bolt projecting upward from the existing corrugated roof material is inserted into the opening of the washer, the support metal fitting is covered from above, the roof material fixing bolt is inserted into the bolt insertion hole, and the support metal fitting The support leg is placed in the valley of the existing corrugated roofing material. Then, a plurality of washer lifting screws are respectively screwed into the plurality of screw holes of the washer from the plurality of screw insertion holes of the support bracket to raise the washer, and the plurality of crimping pieces of the washer are pressed against the lower surface of the recess of the support bracket. By caulking toward the center of the opening of the washer, the end of each caulking piece is pressed against the roof material fixing bolt from the outside to firmly attach and fix the roof repair bracket. A purlin material for attaching a new roofing material is attached to the main material support surface.

  As described above, the roof repair metal fitting of the present invention attaches each of the caulking pieces of the washer toward the center of the opening and presses the existing roof material fixing bolt from the outside, so that the roof material fixing bolt is rusted. Even when the screw thread or screw groove is crushed, it can be securely and firmly attached, and wind pressure acts on the new roof material attached to the support material support surface of the support bracket via the main material. However, it is possible to eliminate the worry that the roof repair bracket is loose or detached from the roof material fixing bolt. Moreover, the roof repair bracket of the present invention can be mounted very simply by screwing the washer lifting screw into the screw hole of the washer. The more the screw for screwing the washer is screwed, the more the crimping piece of the washer opens. There is an advantage that the roof material fixing bolt is strongly pressed toward the center portion of the door and strongly pressed and fixed firmly.

  In addition, the roof repair bracket further provided with the above-described washer, in addition to the caulking piece of the washer, the caulking piece of this sub-washer is also caulked toward the center of the opening to strongly press the roof material fixing bolt from the outside. Therefore, there is an advantage that the fixing strength is further improved.

  In addition, a roof repair bracket in which four caulking pieces protrude obliquely from the edge of the opening of the washer or sub-washer upward toward the center is easier than one in which two or three caulking pieces protrude. The caulking piece can be caulked, and there is an advantage that the roof material fixing bolt can be pressed more strongly than the case where five or more caulking pieces protrude.

  Furthermore, the roof repair metal fitting that the front end side of the caulking piece is curved so that the inclination angle on the front end side of the caulking piece is gradually reduced, the front end of the caulking piece presses the roof material fixing bolt at a substantially right angle. Mounting strength can be further improved.

  Then, the roof repair structure of the present invention in which the roof repair metal fitting of the present invention is attached in the above-described manner and the main roof material for attaching a new roof material to the purlin support surface of the support metal fitting is attached is described above. As mentioned above, because the strength of the roof repair bracket is high, even if wind pressure acts on the new roof material to be attached to the main building material, the roof repair bracket is rattled or the roof repair bracket is fixed to the roof material fixing bolt. There is an advantage that the concern that the roof material is removed and the new roof material is rolled up is eliminated, and the workability is improved because the mounting work of the roof repair metal fittings is easy.

  Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an exploded perspective view of a roof repair fitting according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing a mounting state of the roof repair fitting before screwing a washer lifting screw, and FIG. It is sectional drawing which shows the roof repair structure of this invention using a metal fitting.

  As shown in FIG. 3, this roof repair fitting 1 is for attaching a purlin material 9 for attaching a new roof material 8 on a corrugated roof material 7 such as an existing corrugated slate plate. As shown in FIG. 1, it is composed of a support fitting 2, a washer 3, a sub-washer 4, and two washers lifting screws 5 and 5.

  As shown in FIG. 1 and FIG. 3, the support fitting 2 straddles the purlin support surface 2 a that supports the purlin material 9 and the peaks 7 a of the existing corrugated roof material 7, and the troughs 7 b and 7 b on both sides thereof. The left and right support leg portions 2b, 2b to be placed are integrally formed, and the lower ends of the support leg portions 2b, 2b are folded back obliquely inward to form positioning pieces 2c, 2c. Accordingly, when the support legs 2b and 2b of the support metal fitting 2 are placed on the valleys 7b and 7b of the corrugated roof material 7, the positioning pieces 2c and 2c come into contact with the slope of the corrugated roof material 7 and the support metal fitting 2 is It is positioned so as not to move from side to side.

  A horizontally long recess 2d is formed at the center of the purlin support surface 2a of the support fitting 2, and a roof material fixing bolt 6 protruding from the existing corrugated roof material 7 is inserted into the center of the recess 2d. Bolt insertion holes 2e are formed. Two screw insertion holes 2f, 2f for inserting the washer lifting screws 5, 5 are formed on both sides of the bolt insertion hole 2e of the recess 2d, and the depth of the recess 2d is determined by the height of the washer. The heads of the screws 5 and 5 and the upper end of the roof material fixing bolt 6 have a depth that does not protrude.

  The support fitting 2 is manufactured by pressing and bending a metal plate, but can also be manufactured with a strong synthetic resin.

  The washer 3 is formed with a large-diameter opening 3b through which the roof material fixing bolt 6 is inserted at the center of a rectangular metal plate having stepped portions 3a, 3a on both sides, and the above-described washer lifting screws 5 on both sides thereof. Two screw holes 3c and 3c for screwing 5 are formed, and four caulking pieces 3d are formed in the opening 3b so as to protrude obliquely from the mouth edge toward the upper center. The number of the screw holes 3c of the washer 3 and the screw insertion holes 2f of the support fitting 2 is not limited to two, but two or more, for example, four screw insertion holes 2f are formed at the four corners of the washer 3. At the same time, four screw insertion holes 2 f may be formed at the four corners of the concave portion 2 d of the support fitting 2.

  The distance between the tips of the caulking pieces 3c facing each other is set to be slightly larger than the thread diameter of the roofing material fixing bolt 6, and the roofing material fixing bolt 6 is free to play between the tips of the caulking pieces 3c. It can be inserted. As shown in FIGS. 2 and 3, the crimping piece 3c has a distal end that is curved so that its inclination angle gradually decreases. As will be described later, the caulking piece 3d is the center of the opening 3b. When it is caulked toward the portion, the tip of the caulking piece 3d presses the roof material fixing bolt 6 substantially at a right angle, so that the mounting strength is further improved. The number of the caulking pieces 3d may be two or more. However, the case where the four caulking pieces 3d are formed like the washer 3 is easier than the case where the two or three caulking pieces are formed. There is an advantage that the roof material fixing bolts 6 can be pressed more strongly than those in which five or more caulking pieces are formed.

  Further, the secondary washer 4 is interposed between the washer 3 and the lower surface of the recess 2d of the support fitting 2, and the leg pieces 4a placed on the step portions 3a and 3a on both sides of the washer 3. , 4a are formed in the center of a substantially square metal plate on both sides, and a large-diameter opening 4b through which the roofing material fixing bolt 6 is inserted is formed obliquely from the mouth edge of the opening 4b upward to the center. Four caulking pieces 4c are formed to protrude into the surface. As in the case of the washer 3, the distance between the opposing ends of the caulking pieces 4c is set to be slightly larger than the thread diameter of the roofing material fixing bolts 6, and the roofing material fixing bolts 6 are these caulking pieces. 4c, and as shown in FIG. 2 and FIG. 3, the front end side of these caulking pieces 4c is curved so that the inclination angle gradually decreases, When the caulking piece 4c is caulked toward the center of the opening 4b, the tip of the caulking piece 4c strongly presses the roof material fixing bolt 6 substantially at a right angle. As shown in FIG. 1, the four caulking pieces 4c of the sub-washer 4 and the four caulking pieces 3d of the washer 3 are shifted by 45 degrees in the circumferential direction so as not to overlap each other. When the caulking pieces 4c and 3d are displaced by 45 degrees in this way, it becomes easier to caulk compared to the case where they are completely overlapped, and the roof material fixing bolt 6 is almost evenly distributed from all sides by the tips of the caulking pieces 4c and 3d. Since it is pressed, there is an advantage that the fixing strength is further improved.

  The roof repair structure of the present invention is constructed in the following manner using the roof repair bracket 1 of the present invention comprising the support bracket 2, the washer 3, the sub washer 4, and the washer lifting screws 5 and 5. It is. That is, as shown in FIG. 2, the roofing material fixing bolt 6 protruding upward from the existing corrugated roofing material 7 is connected to the opening 3b of the washer 3 (between the tips of the caulking pieces 3d) and the opening of the auxiliary washer 4 thereon. 4b (between the tips of the caulking pieces 4c), and further, the support metal fitting 2 is covered from above, and the roof material fixing bolt 6 is inserted into the bolt insertion hole 2e, and the support legs 2b and 2b of the support metal fitting 2 are inserted. Is placed in the valley 7b of the existing corrugated roofing material 7. Then, as shown in FIG. 3, the two washer lifting screws 5, 5 are screwed into the two screw holes 3 c, 3 c of the washer 3 from the two screw insertion holes 2 f, 2 f of the support fitting 2, and the washer 3 is pulled up. The caulking pieces 4c of the sub-washer 4 and the caulking pieces 3d of the washer 3 are pressed against the lower surface of the recess 2d of the support fitting 2 and caulked toward the central part of the openings 4b and 3b, respectively. The roof repair metal fittings 1 are firmly attached and fixed by pressing the roof material fixing bolts 6 at substantially right angles from the outside at the tips of 4c and 3d. Then, a purlin material 9 is mounted on the purlin support surface 2a of the support metal fitting 2 of the roof repair metal fitting 1 and mounted and fixed with a stopper (not shown) or the like, and a new roof is formed on the purlin material 9. When the material 8 is attached with a roof material fixing bolt or the like, the roof repair structure of the present invention is completed. As the new roofing material 9, a cheap and durable lightweight synthetic resin corrugated sheet or the like is preferably used, and as the main building material 9, a strong and long sheet metal or the like is preferably used.

  As described above, the roof repair metal fitting 1 has the caulking pieces 3d and 4c of the washer 3 and the auxiliary washer 4 caulked toward the center of the openings 3b and 4b, and the existing roofing material fixing bolt 6 is substantially omitted from the outside. Since the mounting is performed by pressing at a right angle, even when the roof material fixing bolt 6 is rusted and the thread and the groove are being crushed, the roof repair fitting 1 can be securely and firmly attached. Moreover, it is possible to mount the washer lifting screws 5 and 5 simply by screwing them into the screw holes 3c and 3c of the washer 3, and as the screws 5 and 5 for washer lifting are screwed in, the washers 3 and the sub washers are screwed in. The four caulking pieces 3d and 4c are caulked greatly toward the central portions of the openings 3b and 4b to strongly press the roofing material fixing bolts 6 and can be attached more firmly. Therefore, such a roof repair structure using the roof repair metal fitting 1 is such that even if wind pressure or the like acts on the new roof material 8 attached to the main material support surface 2a of the support metal fitting 2 via the main material 9. There is no worry that the roof repair metal fitting 1 is rattled or detached from the roof material fixing bolt 6, and the workability is also good.

  Note that the sub-washer 4 is omitted, and the support fitting 2, the washer 3, and the washer lifting screws 5 and 5 constitute the roof repair fitting 1, and the caulking piece 3d of the washer 3 is the roof material fixing bolt. 6 may be pressed and fixed from the outside, and in this case, the roof repair fitting 1 can be firmly attached. However, if the sub washer 4 is assembled like the roof repair metal fitting 1 of the above embodiment, the roof material fixing bolt 6 is pressed twice by the caulking pieces 3d and 4c of both the washer 3 and the sub washer 4, and the roof is fixed. Since the attachment strength of the repair metal fitting 1 can be further increased, it is extremely preferable.

  FIG. 4 is an exploded perspective view of a roof repair metal fitting according to another embodiment of the present invention, FIG. 5 is a cross-sectional view showing the roof repair structure of the present invention using the roof repair metal fitting, and FIG. It is a longitudinal cross-sectional view which shows the roof repair structure of this invention using the metal fittings.

  The roof repair metal fitting 10 is also composed of a support metal fitting 20, a washer 3, a sub washer 4, and two washer lifting screws 5 and 5. The support metal fitting 20 is the above-mentioned support metal fitting. 2 and different. That is, the support fitting 20 has a groove-shaped recess 2g formed on the center line of the purlin support surface 2a, and a bolt insertion hole 2e through which the roof material fixing bolt 6 is inserted in the center of the groove-shaped recess 2g. In addition to being drilled, two screw insertion holes 2f and 2f through which the washer lifting screws 5 and 5 are inserted are drilled before and after the hole. And the lower end parts of the left and right support legs 2b, 2b of the support bracket 20 are bent obliquely outward and downward to form positioning pieces 2h, 2h. As shown in FIG. When the left and right support legs 2b, 2b of the support bracket 20 are placed on the valleys 7b, 7b on both sides of the mountain 7a, the positioning pieces 2h, 2h abut against the slope of the corrugated roofing material 7 and support The metal fitting 20 is prevented from moving left and right.

  The washers 3, the sub washers 4, and the washers lifting screws 5 and 5 are the same as those of the roof repair metal fitting 1, and therefore the same reference numerals are given to the same portions in FIGS. 4, 5, and 6. Description is omitted. In this roof repair fitting 10, the auxiliary washer 4 can be omitted.

  Such a roof repair metal fitting 10 is firmly attached in the following manner. That is, the washer 3 is oriented along the recess 2g of the support fitting 20, and the roof material fixing bolt 6 is inserted into the opening 3b (between the tips of the caulking pieces 3d) of the washer 3, and the auxiliary washer 4 is stacked thereon. The roofing material fixing bolt 6 is inserted into the opening 4b of the auxiliary washer 4 (between the tips of the caulking pieces 4c), and the roofing material fixing bolt 6 is inserted into the bolting hole 2e of the supporting material by covering the supporting material 10 from above. . Then, as shown in FIG. 6, the two washer lifting screws 5, 5 are screwed into the two screw holes 3 c, 3 c of the washer 3 from the two screw insertion holes 2 f, 2 f of the support fitting 20, and the washer 3 is pulled up, When the plurality of caulking pieces 4c of the sub washer 4 and the plurality of caulking pieces 3d of the washer 3 are pressed against the lower surface of the concave portion 2g of the support fitting 2 and caulked toward the center of the openings 4b and 3b, the caulking pieces 4c, The tip of 3d presses the roof material fixing bolt 6 from the outside at a substantially right angle, and the roof repair fitting 10 is firmly attached. Then, a purlin material 9 is horizontally mounted on the purlin support surface 2a of the support metal fitting 2 of the roof repair metal fitting 10 and fixed with a stopper (not shown), and a new roof is formed on the purlin material 9. When the material 8 is attached with a roof material fixing bolt or the like, the roof repair structure shown in FIGS. 5 and 6 is completed.

  Needless to say, the roof repair structure using the roof repair metal fitting 10 as described above can achieve the same operational effects as the roof repair structure using the roof repair metal fitting 1 described above.

It is a disassembled perspective view of the metal fitting for roof repair which concerns on one Embodiment of this invention. It is a cross-sectional view which shows the attachment state of the metal fitting for roof repair before screwing a washer raising screw. It is a cross-sectional view which shows the roof repair structure of this invention using the metal fitting for roof repair. It is a disassembled perspective view of the metal fitting for roof repair which concerns on other embodiment of this invention. It is a cross-sectional view which shows the roof repair structure of this invention using the metal fitting for roof repair. It is a longitudinal cross-sectional view which shows the roof repair structure of this invention using the metal fitting for roof repair.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,10 Roof repair bracket 2 Support bracket 2a Purlin support surface 2b Support leg 2d, 2g Recess 2e Bolt insertion hole 2f Screw insertion hole 3 Washer 4 Sub washer 3b, 4b Opening 3c Screw hole 3d, 4c Caulking piece 4 Sub Washer 5 Screw for raising washer 6 Roof material fixing bolt 7 Existing corrugated roof material 7a Mountain portion 7b Valley portion 8 New roof material 9 Main building material

Claims (6)

A roof repair bracket that supports a main building material for attaching a new roof material on an existing corrugated roof material,
A purlin support surface having a recess in which a bolt insertion hole for inserting a roof material fixing bolt projecting upward from an existing corrugated roof material and a plurality of screw insertion holes for inserting a screw for lifting a washer are formed, and the main material A support fitting comprising a pair of support legs formed by bending downward from both ends of the support surface;
Opening through which the roofing material fixing bolt is inserted and a plurality of screw holes into which the screws for raising the washer are screwed, and a plurality of caulking pieces protruding obliquely upward from the mouth edge of the opening toward the center part are screws of the roofing material fixing bolt A washer formed so as to have a gap between the tip ends of the caulking pieces slightly larger than the crest diameter;
A plurality of screws for lifting the washer by screwing into the screw hole of the washer from the screw insertion hole of the support bracket,
A roof repair metal fitting characterized by comprising:   A sub washer interposed between the support bracket and the washer, and a plurality of caulking pieces protruding obliquely upward from the rim of the opening through which the roof material fixing bolt is inserted are formed on the roof material fixing bolt. The roof repair bracket according to claim 1, further comprising a sub washer formed so as to have a space between the front ends of the caulking pieces slightly larger than the thread diameter.   The roof repair metal fitting according to claim 1 or 4, wherein four caulking pieces protrude obliquely from the mouth edge of the opening toward the upper center.   The roof repair metal fitting according to any one of claims 1 to 3, wherein the front end side of the caulking piece is curved so that the inclination angle on the front end side of the caulking piece is gradually reduced.   A roof repair structure using the roof repair bracket according to claim 1, wherein a roof material fixing bolt protruding upward from an existing corrugated roof material is inserted into an opening of a washer, and the support is covered from above. The roof material fixing bolt is inserted into the bolt insertion hole of the metal fitting, and the support leg of the support metal fitting is placed in the valley of the existing corrugated roof material, and the plurality of screws of the washer from the plurality of screw insertion holes of the support metal fitting. A plurality of crimping pieces of the washer pulled up by a plurality of screws for lifting the washer respectively screwed into the holes are pressed against the lower surface of the concave portion of the support bracket and are crimped toward the center of the opening of the washer. The roof repair metal fitting is attached and fixed by pressing the roof material fixing bolt from the outside at the tip of the roof, and the main building for attaching the new roof material to the main material support surface of the support metal fitting of this roof repair metal fitting The material is attached Roof repair structure, characterized in that is.   The auxiliary washer according to claim 2 is interposed between the support fitting and the washer, the roof material fixing bolt is inserted into the opening of the auxiliary washer, and the plurality of caulking pieces of the auxiliary washer are also caulked toward the center of the opening. The roof repair structure according to claim 5, wherein the end of each caulking piece presses the roof material fixing bolt from the outside.

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