JP5060161B2 - 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) .

In addition, a plate-shaped split pin metal fitting having a slit is inserted between the washer above the existing hook bolt for fixing the corrugated slate roof to the main building and the corrugated slate roof, and a connecting metal fitting for supporting the C-shaped rope is provided. There has also been proposed a new roof fixture that is fixed to a hook bolt by engaging with the split pin fitting (Patent Document 2).
JP 2004-100239 A JP-A-2005-48516

  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.

  In addition, the new roof mounting tool disclosed in Patent Document 2 does not need to loosen or tighten a nut screwed into an existing bolt, but the split pin is between the washer above the hook bolt and the corrugated slate roof. Because the connecting metal fitting that supports the C-shaped rope is attached simply by engaging the bent tip portion formed on the leg portion of the metal fitting with both ends of the split pin metal fitting. There was a problem that mounting stability was insufficient and mounting strength was not sufficient.

  The present invention has been made under the circumstances described above, and the problem to be solved is that even if an existing roof material fixing bolt such as a hook bolt is rusted, it can be fixed and fixed reliably with a simple mounting operation. An object of the present invention is to provide a roof repair metal fitting capable of greatly improving strength 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 plate 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 washer lifting screw are formed, and A support bracket made of a pair of leg plates bent downward from both side ends, and (2) an opening through which the roofing material fixing bolt is inserted and a plurality of screw holes into which screws for washer lifting are formed are formed. A washer formed such that a plurality of caulking pieces projecting obliquely from the edge toward the upper center part have a spacing between the caulking piece tips slightly larger than the thread diameter of the roofing material fixing bolt; (3) Support bracket screw A plurality of washers for raising the washer by screwing it into the screw hole of the washer from the insertion hole, and (4) a lower washer of the tightening nut screwed to the roof material fixing bolt and the existing corrugated roofing material. An auxiliary metal fitting inserted into the gap and formed with a notch for introducing a roofing material fixing bolt into the insertion part. An engaging portion that engages with each other is formed on the auxiliary metal fitting. Here, the “screw for raising the washer” is a term that includes a bolt such as a hexagonal bolt, and is not limited to a screw having a cross groove or other driver engaging groove on the head.

  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.

  Further, in the roof repair metal fitting of the present invention, an engaged edge that is bent obliquely inward and upward as an engaged portion is formed at the lower ends of the pair of leg plates of the support metal fitting, As a joint part, an engagement edge that is bent obliquely outwardly downward and engages with the above-mentioned engaged edge from above is formed, or a pair of leg plates of the support metal fitting has a notch groove as an engaged part It is preferable that an engagement ear edge having a U-shaped or hook-shaped cross-sectional shape to be engaged with the cutout groove from above is formed as an engagement portion on both side ends of the auxiliary metal fitting.

  Next, 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 is a roof material fixing bolt that protrudes upward from an existing corrugated roof material at the opening of the washer. Is inserted into the bolt hole of the support bracket that is placed over it, and the roof fixing bolt is inserted into the trough of the existing corrugated roof material, and a plurality of screws of the support bracket are inserted. A plurality of crimping pieces of the washer pulled up by a plurality of screws for raising the washer respectively screwed into the plurality of screw holes of the washer from the insertion holes are pressed against the lower surface of the base material support plate of the support metal fitting to form the opening of the washer. The roof material fixing bolt is caulked toward the center, and the roof material fixing bolt is pressed from the outside at the tip of each caulking piece, while the lower washer of the tightening nut screwed to the roof material fixing bolt and the existing corrugated roof material Auxiliary metal fittings are inserted into the gap In addition, the roof fixing bracket is installed and fixed by the roof material fixing bolt being introduced into the cutout portion, and the engaging portion of the auxiliary metal fitting being engaged with the engaged portion of the support metal fitting from above. A purlin material for attaching a new roof material is attached to the purlin material support plate of the support metal fitting of the roof repair metal fitting.

  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 leg plate is placed in the valley of the existing corrugated roofing material. Next, 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 a plurality of crimping pieces of the washer are placed on the lower surface of the base metal support plate of the support bracket. By crimping to the center part 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 fitting. And, while inserting the auxiliary metal fitting into the gap between the lower washer of the fastening nut screwed to the roofing material fixing bolt and the existing corrugated roofing material, introducing the roofing material fixing bolt into the notch portion of the auxiliary metal fitting, By engaging the engaging part of the auxiliary metal fitting with the engaged part of the support metal from above, the mounting strength of the roof repair metal fitting is further improved. Attach the main building materials to attach new roofing materials.

  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 groove is crushed, it can be securely and firmly attached, and the engaging part of the auxiliary metal fitting inserted into the gap between the existing corrugated roofing material and the washer is covered with the support metal fitting. Since the attachment strength of the roof repair bracket is further increased by engaging with the engaging portion from above, wind pressure or the like is applied to the new roof material attached to the main material support plate of the support metal via the main material. Even if it acts, the concern that the roof repair bracket will rattle or come off the roof material fixing bolt is eliminated. Moreover, the roof repair bracket of the present invention can be easily attached by simply screwing the washer lifting screw into the screw hole of the washer and inserting the auxiliary bracket into the gap between the existing corrugated roofing material and the washer. As the screw for raising the washer is screwed in, there is an advantage that the caulking piece of the washer is caulked larger toward the center of the opening and strongly presses the roof material fixing bolt to be firmly attached and fixed.

  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 particular, a roof repair bracket in which four caulking pieces protrude obliquely from the mouth 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. In addition, the roof repair bracket in which the tip side of the caulking piece is curved so that the inclination angle on the tip side of the caulking piece is gradually reduced, because the tip of the caulking piece presses the roof material fixing bolt at a substantially right angle, There is an advantage that the mounting strength can be further improved.

  Furthermore, an engaged edge that bends inward and upward as an engaged portion is formed at the lower ends of the pair of leg plates of the support bracket, and bends in an obliquely downward direction as an engaging portion at both ends of the auxiliary bracket. A notch groove is formed as an engaged portion in a pair of leg portions of the roof repair metal fitting or the support metal fitting that is engaged with the engaged edge from above. The roof repair metal fitting having an engagement edge having a U-shaped or hook-shaped cross-sectional shape that engages with the cutout groove from above is formed as an engaging portion on both side ends. Since the edges of the support metal fittings and the notch grooves of the support metal fittings and the engagement ear edges of the auxiliary metal fittings are securely engaged so as not to be separated from each other, the support metal fittings are prevented from rising. The mounting strength of the housing has been further improved, and it is possible to reliably eliminate the concern that the roof repair bracket will come off from the roof material fixing bolt. It is possible.

  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, the mounting strength of the roof repair bracket is large, so even if wind pressure acts on the new roof material to be attached to the main building material, the roof repair bracket rattles or the roof repair bracket is fixed to the roof material fixing bolt. Therefore, it is possible to eliminate the concern that the roof material is removed and the new roofing material is drowned, and it is easy to attach the roof repair metal fittings, so that the workability is improved.

  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 bracket according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing a mounting state of the roof repair bracket before screwing a washer lift screw, and FIG. FIG. 4 is a cross-sectional view showing a roof repair structure according to the present invention using the roof repair metal fitting. FIG.

  As shown in FIG. 4, this roof repair metal fitting 1 is for attaching a purlin member 10 for attaching a new roof member 9 on a corrugated roof member 8 such as an existing corrugated slate plate. As shown in FIG. 1, it is composed of a support metal fitting 2, a washer 3, a sub-washer 4, two washers lifting screws 5, 5 and a reinforcing metal fitting 6. In the roof repair metal fitting 1 of this embodiment, hexagonal bolts are used as the washers lifting screws 5.

  As shown in FIG. 1 and FIG. 4, the support metal fitting 2 straddles the purlin material support plate 2 a that supports the purlin material 10 and the mountain portions 8 a of the existing corrugated roof material 8, and the valley portions 8 b and 8 b on both sides thereof. A pair of left and right leg plates 2b, 2b to be placed are integrally formed. The lower end of each of the leg plates 2b, 2b is an inner diagonal as an engaged portion for engaging an engaging portion of an auxiliary metal fitting 6 described later. Engagement edges 2c, 2c bent upward are formed. The engaged edges 2c and 2c have a role of positioning, and the leg plates 2b and 2b of the support metal fitting 2 are placed on the valleys 8b and 8b of the corrugated roofing material 8 as shown in FIGS. Then, the engaged edges 2c and 2c come into contact with the slope of the corrugated roofing material 8, and the support fitting 2 is positioned so as not to move left and right.

  A horizontally long recess 2d is formed at the center of the purlin support plate 2a of the support fitting 2, and a roof material fixing bolt 7 protruding from the existing corrugated roof material 8 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 roofing material fixing bolt 7 have a depth that does not protrude. When a C-shaped channel material or the like is used as the purlin material 10, even if the head of the washer lifting screw 5 or the upper end of the roof material fixing bolt 7 protrudes, the main house material 10 is accommodated inside from the open portion of the C-shaped channel material. Therefore, the bolt insertion hole 2e and the screw insertion holes 2f and 2f may be directly drilled in the purlin support plate 2a without forming the recess 2d.

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

  As shown in FIG. 1, the washer 3 is formed with a large-diameter opening 3b through which the roof material fixing bolt 7 is inserted at the center of a rectangular metal plate having stepped portions 3a and 3a on both sides, and the both sides The two screw holes 3c and 3c into which the washers for raising the washer 5 and 5 are screwed are formed. In the opening 3b, four caulking pieces 3d projecting obliquely from the edge of the mouth toward the upper center. Is formed. The number of screw holes 3c of the washer 3 and the screw insertion holes 2f of the support fitting 2 is not limited to two, and two or more, for example, four screw holes 2c are formed at the four corners of the washer 3. Correspondingly, four screw insertion holes 2 f may be formed at the four corners of the recess 2 d of the support fitting 2.

  The distance between the tips of the caulking pieces 3d facing each other is set slightly larger than the thread diameter of the roofing material fixing bolt 7, and the roofing material fixing bolt 7 is allowed to play between the tips of the caulking pieces 3d. It can be inserted. Also, as shown in FIGS. 2 to 4, the tip side of these caulking pieces 3d is curved so that the 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 7 at a substantially 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 7 is inserted is formed obliquely upward from the mouth edge of the opening 4b toward 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 slightly larger than the thread diameter of the roofing material fixing bolts 7, and the roofing material fixing bolts 7 are connected to these caulking pieces. It can be loosely inserted between the tips of 4c. Also, as shown in FIGS. 2 to 4, the tip side of these caulking pieces 4c is curved so that the inclination angle gradually decreases, and the caulking pieces 4c are caulked toward the center of the opening 4b. The roof material fixing bolt 7 is strongly pressed substantially at right angles by the tip of the caulking piece 4c.

  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 formed so as to be 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 7 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.

  As shown in FIGS. 1 and 4, the auxiliary metal fitting 6 bends outward and obliquely downward as an engaging portion at both side ends of the convex curved plate 6 a placed on the peak portion 8 a of the existing corrugated roofing material 8. Engagement edges 6b, 6b are integrally formed via horizontal portions 6b, 6b, and a notch 6d for introducing a roof material fixing bolt 7 is formed at the tip of the convex curved plate 6a. A pair of cut-and-raised pieces 6e and 6e are provided at the rear end of the curved plate 6a.

  As will be described later, the engaging edges 6b and 6b of the auxiliary metal fitting 6 support the gap between the lower washer 7b of the tightening nut 7a screwed to the roof material fixing bolt 7 and the existing corrugated roof material 8. When the metal fitting 6 is inserted, it engages with the engaged edges 2c, 2c at the lower ends of the leg plates 2b, 2b of the support metal fitting 2 from above to prevent the support metal fitting 2 from rising, thereby further increasing the mounting strength of the roof repair metal fitting. It plays the role of raising. The pair of cut-and-raised pieces 6e, 6e are for facilitating insertion of the auxiliary metal fitting 6 between the existing corrugated roofing material 8 and the washer 7b while hitting it with a hammer. The open front end side of the notch 6d is notched in a V shape so that the roof material fixing bolt 7 can be easily introduced.

  The roof repair structure of the present invention uses the above-described support metal fitting 2, the washer 3, the sub washer 4, the screws 5 and 5 for raising the washer, and the auxiliary metal fitting 6 according to the present invention in the following manner. It is to be constructed. First, as shown in FIG. 2, the roof material fixing bolt 7 projecting upward from the existing corrugated roof material 8 is attached 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 7 is inserted into the bolt insertion hole 2e, and the pair of leg plates 2b, 2b of the support metal fitting 2 Is placed in the valleys 8b, 8b of the existing corrugated roofing material 8.

  Next, 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 fitting 1 is firmly attached and fixed by pressing the roof material fixing bolts 7 from the outside at substantially right angles at the tips of 4c and 3d.

  Then, as shown in FIG. 4, while hitting the cut and raised pieces 6e, 6e at the rear end of the auxiliary metal fitting 6 with the hammer, the convex curved plate 6a of the auxiliary metal fitting 6 is formed with the crest 8a and the washer 7b of the existing corrugated roofing material 8. The roof material fixing bolt 7 is introduced into the notch 6d, and the engaging edges 6b, 6b on both ends of the auxiliary metal fitting 6 are connected to the lower ends of the leg plates 2b, 2b of the support metal fitting 2, respectively. By engaging the engaging edges 2c, 2c from above, the support metal fitting 2 is prevented from rising, and the mounting strength of the roof repair metal fitting 1 is further increased.

  When the mounting of the roof repair metal fitting 1 is completed in this way, as shown in FIG. 4, the main roof material 10 is horizontally mounted on the purlin material support plate 2a of the support metal fitting 2 of the roof repair metal fitting 1, and a fastener (not shown) ) And the like, and a new roofing material 9 is pasted on the main building material 10 with a roofing material fixing bolt or the like to complete the roof repair structure of the present invention. As the new roofing material 9, a cheap and durable lightweight synthetic resin corrugated sheet or the like is preferably used. As the main building material 9, a strong long sheet metal or a C-shaped channel material or the like is used. Are preferably used.

  As described above, the roof repair metal fitting 1 has the caulking pieces 3d, 4c of the washer 3 and the sub-washer 4 caulked toward the center of the openings 3b, 4b, and the existing roofing material fixing bolt 7 is substantially omitted from the outside. Since the roof material fixing bolt 7 is rusted and the thread and the groove are crushed, the roof repair metal fitting 1 can be securely and firmly attached even if the roof material fixing bolt 7 is rusted. Since the engagement edges 6b, 6b of the auxiliary metal fitting 6 are engaged with the engaged edges 2c, 2c of the support metal fitting 2 from above to prevent the support metal fitting 2 from floating, the mounting strength of the roof repair metal fitting 1 is further increased. Can be increased. Moreover, it is possible to repair the roof by simply screwing the washers lifting screws 5 and 5 into the screw holes 3c and 3c of the washer 3 and inserting the auxiliary metal fitting 6 into the gap between the existing corrugated roofing material 8 and the washer 7b. The metal fitting 1 can be easily attached, and the more the screws 5 and 5 for washer lifting are screwed, the larger the caulking pieces 3d and 4c of the washer 3 and the auxiliary washer 4 are caulked toward the center of the openings 3b and 4b. Since the roof material fixing bolt 7 is strongly pressed, it 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 9 attached to the main material support plate 2a of the support metal fitting 2 via the main material 10. The roof repair metal fitting 1 does not rattle or come off the roof material fixing bolt 7, and the workability is also good.

  Note that the sub-washer 4 is omitted, and the support fitting 2, the washer 3, the washers lifting screws 5 and 5, and the auxiliary fitting 6 constitute the roof repair fitting 1, and the caulking piece 3d of the washer 3 is formed. Then, the roofing material fixing bolt 6 may be pressed from the outside, and the engaging edges 6b, 6b of the auxiliary metal fitting 6 may be engaged with the engaged edges 2c, 2c of the support metal fitting 2 from above, and fixed. In this case, the roof repair metal 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 7 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. 5 is a perspective view showing another example of the support fitting. The support fitting 2 is provided with a recess 2d that forms a bolt insertion hole 2e and a screw insertion hole 2f that is offset from one end in the longitudinal direction of the purlin support plate 2a. A wide area from the part to the other end side is secured as a support surface for the purlin. Since other configurations are the same as those of the support metal fitting 2 described above, the same reference numerals are given to the same portions in FIG.

  Since the support bracket 2 can secure a wide area from the center portion to the other end side of the purlin support plate 2a as the support surface of the purlin material, for example, the roof material fixing bolts 7 are arranged in a somewhat zigzag pattern rather than in a straight line. Even when the roofing material fixing bolt 7 is misaligned, it is possible to absorb the misalignment of the roofing material fixing bolt 7 in a wide support surface region, or to absorb the rotation of the support fitting 2 by 180 °, thereby reliably supporting the main building material.

  FIG. 6 is an exploded perspective view of a roof repair metal fitting according to another embodiment of the present invention, and FIG. 7 is a cross-sectional view showing the roof repair structure of the present invention using the roof repair metal fitting.

  This roof repair metal fitting 11 is also composed of the support metal fitting 20, the washer 3, the sub-washer 4, the two washers lifting screws 5, 5, and the reinforcement metal fitting 60. The reinforcing bracket 60 is different from the supporting bracket 2 and the reinforcing bracket 6 described above.

  As shown in FIG. 6, the support fitting 20 has a groove-shaped recess 2g formed on the center line of the purlin support plate 2a, and the roof material fixing bolt 7 is inserted through the center of the groove-shaped recess 2g. The bolt insertion hole 2e is drilled, and two screw insertion holes 2f and 2f through which the washer lifting screws 5 and 5 are inserted are drilled before and after the bolt insertion hole 2e. And the lower end part of the left and right leg plates 2b, 2b of the support bracket 20 is bent obliquely outward and downward to form positioning pieces 2h, 2h. As shown in FIG. 7, the peak portion of the existing corrugated roofing material 8 is formed. When the left and right leg plates 2b, 2b of the support fitting 20 are placed on the valley portions 8b, 8b on both sides of the support plate 20, the positioning pieces 2h, 2h come into contact with the slope of the corrugated roofing material 8, and the support fitting 20 is It is designed not to move. The leg plates 2b and 2b are formed with cutout grooves 2i and 2i cut from the insertion side end of the auxiliary metal fitting 60 as engaged parts for engaging an engagement part of the auxiliary metal fitting 60 described later. ing.

  On the other hand, as shown in FIGS. 6 and 7, the auxiliary metal fitting 60 formed side plates 6 f and 6 f that rise upward from both side ends of the convex curved plate 6 a placed on the mountain portion 8 a of the existing corrugated roofing material 8. An engagement ear edge 6g having a U-shaped cross-sectional shape is formed in the substantially rear half of the upper end of one side plate 6f, and a hook-like shape is formed in the substantially rear half of the other side plate 6f. An engagement ear edge 6h having a cross-sectional shape is formed. These engagement ear edges 6g and 6h are inserted into the notch grooves 2i and 2i of the leg plates 2b and 2b of the support metal fitting 20 when the auxiliary metal fitting 60 is inserted into the gap between the existing corrugated roofing material 8 and the washer 7b. It engages with the cutout grooves 2i, 2i from above, and prevents the support metal fitting 2 from rising and further increases the mounting strength of the roof repair metal fitting. Further, similarly to the auxiliary metal fitting 6, a notch portion 6 d having an open front end side for introducing the roof material fixing bolt 7 spreading in a V shape is formed at the tip of the convex curved plate 6 a. A pair of cut-and-raised pieces 6e, 6e are provided at the rear end.

  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. Description is omitted. In addition, also in this metal fitting 11 for roof repair, omission of the washer 4 is possible.

  Such a roof repair metal fitting 11 is firmly attached in the following manner. First, with the washer 3 oriented along the concave portion 2g of the support fitting 20, the roofing material fixing bolt 7 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 7 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 7 is inserted into the bolt insertion hole 2e of the supporting material 20 by covering the supporting material 20 from above. To do. Next, 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 bracket 20, and the washer 3 is pulled up, so When the crimping pieces 3d of the piece 4c and the washer 3 are pressed against the lower surface of the recess 2g of the support fitting 2 and caulked toward the center of the openings 4b and 3b, the tips of the caulking pieces 4c and 3d are fixed to the roofing material. The bolt 6 is pressed from the outside at a substantially right angle, and the roof repair metal fitting 11 is firmly attached. Then, while hitting the cut and raised pieces 6e, 6e of the auxiliary metal fitting 60 with a hammer, the convex curved plate 6a is inserted (press-fitted) into the gap between the peak portion 8a of the existing corrugated roofing material 8 and the washer 7b to fix the roofing material. The bolt 7 is introduced into the notch 6d, and the engagement ear edges 6g and 6h of the auxiliary metal fitting 60 are inserted into the notch grooves 2i and 2i of the leg plates 2b and 2b of the support metal 20 and engaged from above, and the support metal 20 Is prevented from rising, and the mounting strength of the roof repair metal fitting 11 is further increased. When the mounting of the roof repair metal fitting 11 is completed in this way, the main roof material 10 is horizontally mounted on the purlin material support plate 2a of the support metal fitting 20 of the roof repair metal fitting 11, and attached and fixed with a stopper (not shown) or the like. Then, a new roof material 9 is pasted on the main building material 10 with a roof material fixing bolt or the like to complete the roof repair structure of the present invention.

  Needless to say, the roof repair structure using the roof repair metal fitting 11 as described above can provide 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 sectional drawing which shows the attachment state of the metal fitting for roof repairing before screwing a screw for raising a washer. It is sectional drawing which shows the state which screwed the screw for raising a washer and fixed and attached the metal fitting for roof repair. It is sectional drawing which shows the roof repair structure of this invention using the metal fitting for roof repair. It is a perspective view which shows the other example of a support metal fitting. It is a disassembled perspective view of the metal fitting for roof repair which concerns on other embodiment of this invention. It is sectional drawing which shows the roof repair structure of this invention using the metal fitting for roof repair.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,11 Roof repair metal fittings 2,20 Support metal fittings 2a Purlin support plate 2b Leg plate 2c Engagement edge (engaged part)
2d, 2g Recess 2e Bolt insertion hole 2f Screw insertion hole 2i Notch groove (engaged part)
3 Washer 4 Sub Washer 3b, 4b Opening 3c Screw Hole 3d, 4c Caulking Piece 5 Washer Lifting Screw 6,60 Auxiliary Metal 6b Engagement Edge (engagement part)
6d Notch part 6g Engagement edge (engagement part) which has U-shaped cross-sectional shape
6h Engagement ear edge (engagement part) having a hook-shaped cross-sectional shape
7 Roofing material fixing bolt 7a Clamping nut 7b Washer 8 Existing corrugated roofing material 8a Mountain part 8b Valley part 9 New roofing material 10 Main building material

Claims (8)

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 plate 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 washer lifting screw are formed, and A support bracket comprising a pair of leg plates formed by bending downward from both side ends;
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,
Auxiliary metal fittings inserted into the gap between the lower washer of the fastening nut screwed to the roofing material fixing bolt and the existing corrugated roofing material, and a notch for introducing the roofing material fixing bolt is formed in this insertion part, Comprising
An engaged part is formed on the support metal fitting, and an engaging part that engages with the engaged part from above is formed on the auxiliary metal fitting.   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.   At the lower ends of the pair of leg plates of the support bracket, an engaged edge that is bent obliquely inward and upward as an engaged portion is formed, and on both side ends of the auxiliary metal fitting, bent outwardly and obliquely downward as an engaging portion. The metal fitting for roof repair in any one of Claims 1 thru | or 4 in which the engagement edge engaged from the upper part is formed in the to-be-engaged edge.   A pair of leg plates of the support bracket are formed with notched grooves as engaged portions, and have a U-shaped or hook-shaped cross-sectional shape that engages with the notched grooves from above as engaging portions on both side ends of the auxiliary bracket. The roof repair metal fitting according to any one of claims 1 to 4, wherein an engagement ear edge is provided.   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 bolts are inserted into the bolt insertion holes of the metal fittings, the leg plates of the support metal fittings are placed in the valleys of the existing corrugated roofing material, and the plurality of screw insertion holes of the support metal fittings to the plurality of screw holes of the washer respectively. A plurality of caulking pieces of the washer pulled up by a plurality of screwed screws for washer are pressed against the lower surface of the purlin support plate of the support bracket and caulked toward the center of the opening of the washer. While the roofing material fixing bolt is pressed from the outside at the tip, the auxiliary metal fitting is inserted into the gap between the lower washer of the tightening nut screwed to the roofing material fixing bolt and the existing corrugated roofing material. Fixed roofing bolt on the part In addition, the roof repair bracket is mounted and fixed by engaging the engaging portion of the auxiliary metal fitting with the engaged portion of the support metal fitting from above. A roof repair structure in which a purlin material for attaching a new roof material is attached to a material support plate.   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 7, wherein the roof material fixing bolt is pressed from the outside at the tip of each caulking piece.

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