JP6280073B2 - Metal roof mounting bracket - Google Patents

Description

  The present invention relates to a metal roof mounting bracket, and in particular, a support nut is fixed to a metal roof by screwing a clamping nut to a bolt, and an installation object is fixed to the support bracket by screwing a mounting nut to the bolt. The present invention relates to an improvement of a metal roof mounting bracket to be fixed.

  Conventionally, for example, Patent Document 1 includes (a) a pair of sandwiching portions that extend downward and bend so that a lower end projects in a direction approaching each other, and sandwich a projecting portion of a metal roof from both sides. And a support bracket having a base portion on which an installation object is placed, and (b) a bolt inserted through a through hole provided in the base portion. The pair of clamping parts are brought close to each other by being moved upward with respect to the base part in accordance with the rotation of the clamping nut that is screwed into the bolt and seated on the upper surface of the base part. A clamping mechanism that clamps the installation object; and (c) a mounting nut that is disposed above the base portion with the installation object sandwiched therebetween and screwed into an upper end portion of the bolt protruding upward from the clamping nut. By attached, metal roofing mounting bracket having a pressing metal fitting for fixing integrally with nipped installation material between the base portion has been proposed (see Patent Document 1).

JP 2013-194448 A

  However, in such a conventional metal roof mounting bracket, after fixing the support bracket to the metal roof by screwing the holding nut onto the bolt, the installation object is placed on the base portion and the presser bracket is disposed. When tightening the mounting nut, the bolt may be further pulled up, and there is a possibility that sufficient mounting strength for fixing the installation object to the base portion cannot be secured. In other words, the tightening force of the mounting nut is transmitted to the clamping mechanism and the clamping part via the bolt. Therefore, when the clamping force increases, the bolt moves upward due to elastic deformation of the clamping mechanism and the clamping part. There may be a case where the clamping pressure (mounting strength) for clamping between the base and the base portion is not sufficiently obtained.

  The present invention has been made in the background of the above circumstances, and the object of the present invention is to provide a metal roof mounting bracket for mounting an installation by screwing a clamping nut and a mounting nut onto a common bolt. It is to be able to fix the installation object with an appropriate mounting strength.

  In order to achieve such an object, the first invention comprises: (a) a pair of sandwiching portions that extend downward and bend so that the lower end portions protrude toward each other; A support bracket having a base portion on which an installation object is placed and being integrally fixed to the protruding portion sandwiched between the bolts, and (b) a bolt inserted upward in a through hole provided in the base portion Is screwed into the bolt and moved upward with respect to the base portion in accordance with the rotation of the holding nut seated on the upper surface of the base portion, thereby bringing the pair of holding portions closer to each other. A clamping mechanism for clamping the projecting portion; and (c) disposed above the base portion with the installation object sandwiched therebetween, and screwed to an upper end portion of the bolt projecting upward from the clamping nut. In a metal roof mounting bracket having a presser fitting that clamps and fixes the installation object integrally with the base portion by tightening the mounting nut, (d) the clamping nut is: A stopper is attached to a portion of the cylindrical portion that protrudes downward from the base portion, and is prevented from moving upward relative to the base portion. The clamping mechanism has a tension member that is connected to the bolt at a central portion in the longitudinal direction, has both sides of the central portion inclined obliquely downward, and has a wide locking portion at the tip, The locking portion of the tension member moves upward together with the bolt in a state where the locking portion protrudes outward from the hooking holes provided in the pair of holding portions and is locked in the hooking holes. The pair of clamping portions are pulled inward to approach each other, and the tension member is divided into two parts, a first tension member and a second tension member, and the first tension member and the second tension member are Each has a connecting plane portion provided on the opposite side of the locking portion, and when the upward movement of the bolt is completed, the connecting plane portion of the first tension member and the connecting plane portion of the second tension member. And are superimposed by face-on contact.

  According to a second aspect of the present invention, in the metal roof mounting bracket according to the first aspect of the present invention, there is provided a support member that maintains a relative positional relationship between the first tensile member and the second tensile member and is deformable when the bolt moves upward. It is characterized by that.

  According to a third aspect of the present invention, in the metal roof mounting bracket of the first aspect or the second aspect, (a) the pair of sandwiching portions are configured separately from each other, and at the upper ends of the pair of sandwiching portions, While a flat plate-like slide portion protruding toward the inside approaching each other is integrally provided, (b) the base portion is provided with a pair of guide grooves into which the slide portion is slidably fitted. (C) When the slide portions are respectively inserted into the guide grooves of the base portion, the lower end portions of the pair of sandwiching portions protrude in directions toward each other, and can move in the approach directions. It is characterized by being assembled to the base part.

  According to a fourth aspect of the present invention, in the metal roof mounting bracket of the third aspect of the invention, (a) a slit is provided on each side of the tip of the slide portion from the side, thereby branching protrusions at the corners of the tip. Is formed in a cantilever shape, and (b) the base portion is formed by bending a metal plate into a rectangular shape, and is U-shaped in cross section that is bent 180 ° toward the lower surface side with a predetermined gap therebetween And the guide groove is formed by the folded portion, and (c) the slide portion is inserted into the guide groove from the distal end side, and the clamping portion is the base. When the branching projection is bent in the plate thickness direction at a position protruding inward from the folded portion, the slide portion is brought into contact with the folded portion when the slide portion is pulled out from the guide groove. Missing Wherein the retaining portion for preventing the teeth is provided.

  According to a fifth aspect of the present invention, in the metal roof mounting bracket according to any one of the first to fourth aspects of the present invention, the stopper is a fixing nut, and is screwed into a male screw provided in the cylindrical portion, whereby the clamping nut The upward movement of the base relative to the base portion is restricted.

  In such a metal roof mounting bracket, the stopper is attached to the cylindrical portion provided on the clamping nut, so that the clamping nut is prevented from moving upward with respect to the base portion. Regardless of the tightening force of the nut, the bolt is prevented from moving upward relative to the base, and the installation object is clamped between the base and the presser fitting according to the tightening force of the mounting nut. To be fixed. On the other hand, since the fixing strength of the support bracket to the protruding part of the metal roof is determined according to the clamping force of the holding nut, the fixing strength of the support bracket and the mounting strength of the installation object are not influenced by each other. Can be determined appropriately.

  In the first invention, the pair of wide locking portions provided at both ends of the tension member are respectively locked in the hook holes of the pair of clamping portions, and the tension member is rotated with the rotation of the clamping nut. When the pair of holding parts are brought closer to each other by being moved upward together with the bolts so that the pair of holding parts are pulled inward and brought closer to each other, as described in Patent Document 1, The support bracket can be fixed to the metal roof with a large fixing strength while the clamping mechanism including the tension member is simple and inexpensive.

  In the first invention, the tension member locked to the pair of sandwiching parts is divided into two parts, the first tension member and the second tension member, and a state in which the pair of sandwiching parts are largely separated can be secured. Even if the protrusions have various shapes and widths, the protrusions of the metal roof can be held between the pair of holding parts. Furthermore, each of the first tension member and the second tension member has a connecting plane portion provided on the side opposite to the locking portion. When the protruding portion of the metal roof is sandwiched between the pair of sandwiching portions, the upward movement of the bolt is completed, and the connection plane portion of the first tension member and the connection plane portion of the second tension member are overlapped with each other. In other words, the first tension member and the second tension member can be easily moved until immediately before the projecting portion of the metal roof is sandwiched between the pair of sandwiching portions. The tension member and the second tension member are not deformed. Therefore, the clamping force of the clamping nut is efficiently used as the force for clamping the protruding portion of the metal roof.

  In the second invention, the support member maintains the relative positional relationship between the first tension member and the second tension member, and is deformed when the bolt moves upward. That is, at least until the projecting portion of the metal roof is sandwiched between the pair of sandwiching portions, the first tension member and the second tension member are integrally handled by the support member. Therefore, even if the tension member is divided into the first tension member and the second tension member, the handling of the tension member is easy.

  In the third aspect of the invention, the pair of sandwiching portions are configured separately and each has a slide portion, and the slide portion is inserted into a guide groove provided in the base portion, so that the pair of sandwiching portions is provided. Since the part is assembled to the base part so as to be movable in the direction of approaching each other, the strength and shape of the sandwiching part are compared with the case where a pair of sandwiching parts are connected together and brought closer together by deformation of the connecting part etc. The degree of freedom of the design becomes higher, and the size and weight can be reduced while ensuring the fixing strength of the support bracket.

  In the fourth invention, the sliding protrusion is bent in the thickness direction in a state where the slide portion is inserted into the guide groove and the clamping portion is assembled to the base portion, thereby preventing the slide portion from coming out of the guide groove. Since the portion is provided, the pair of clamping portions assembled to the base portion is prevented from being detached from the base portion, and workability when the support bracket is fixed to the metal roof is improved. In particular, the branching protrusion is provided in a cantilevered manner at the tip corner of the slide part, and is bent laterally with respect to the sliding direction of the slide part to form a retaining part. There is no fear that the part will be caught in the guide groove and the movement of the slide part will not be obstructed, the pair of clamping parts can be easily approached and separated, and the work of fixing the support bracket to the protruding part of the metal roof is easier become.

  In the fifth invention, a fixed nut is used as a stopper, and the upward movement of the clamping nut with respect to the base portion is regulated by being screwed to the male screw of the clamping nut. Compared with welding or the like, the assembly work of the stopper is easy.

It is a 3rd view which shows the state by which the installation thing was attached to the metal roof model using the metal roof mounting bracket which is one Example of this invention. FIG. 2 is a perspective view of FIG. 1. It is a longitudinal cross-sectional view of the III-III arrow part in the top view of (a) of FIG. It is process drawing explaining the procedure at the time of fixing the support bracket of the metal roof mounting bracket of FIG. 1 to a metal roof model. It is process drawing explaining the procedure at the time of attaching an installation thing with respect to the support bracket fixed to the metal roof model. It is a 3rd page figure which shows the base member of the metal roof mounting bracket of FIG. 1 independently. It is a perspective view of the base member of FIG. It is a 4th page figure which shows one side bracket of the attachment metal fitting for metal roofs of FIG. 1 independently. It is a perspective view of the side bracket of FIG. It is a 3rd page figure which shows independently the tension | pulling member of the metal roof mounting bracket of FIG. It is a 3rd view which shows independently the nut for clamping of the attachment metal fitting for metal roofs of FIG. FIG. 12 is a cross-sectional view taken along the line XII-XII in FIG. It is a figure explaining the other Example of this invention, and is a 3rd view corresponding to FIG. It is a figure explaining another Example of this invention, and is a front view which shows the assembly | attachment state of the support bracket corresponded to (a) of FIG. In FIG. 14, it is a front view which shows the state in which the pair of side brackets spaced apart in the left-right direction is prevented from being detached by the retaining portion. FIG. 15 is a four-side view showing one side bracket of the embodiment of FIG. 14 alone. FIG. 15 is a diagram illustrating a process of inserting a slide portion of a side bracket into a guide groove of a base member and bending a branch protrusion to form a retaining portion in the embodiment of FIG. 14. It is the 2nd page figure which expanded and showed the retaining part bent by the bending process of FIG. It is a figure explaining the case where the projection part provided so that it may protrude ahead from the front-end | tip of a slide part may be bent, and a securing part may be formed, and it is process drawing corresponding to FIG. It is a 3rd page figure which shows another tension member independently.

  The metal roof mounting bracket of the present invention is preferably used when, for example, a support bracket is fixed to a hull (connecting portion) of a metal roof and a frame of a photovoltaic power generation panel is attached to the support bracket. The support bracket can be fixed to another projecting portion of the roof, or an installation other than the photovoltaic power generation panel can be attached. The pair of sandwiching portions may be integrally configured, for example, like the inner metal fitting described in Patent Document 1, but may be provided separately, and may be assembled to the base portion so as to be slidable. Embodiments are possible. The bolt to which the clamping nut is screwed is, for example, locked in a non-rotatable manner with a tension member or the like constituting the clamping mechanism, and is moved upward in the through hole of the base portion as the clamping nut rotates.

  As a stopper provided on the cylindrical part of the clamping nut, a fixing nut that is screwed onto a male screw provided on the cylindrical part is suitable, but an E-shaped retaining ring is fitted into an annular groove provided on the cylindrical part. Various modes are possible, such as caulking the tube portion or welding the stopper. In the case of a fixing nut, the base portion is clamped between the holding nut and the holding nut can be integrally fixed to the base portion, and the bolt can be positioned so as not to move in the axial direction. In a retaining ring or the like, the clamping nut may be slightly displaced up and down with respect to the base portion due to a dimensional error or the like. It is only necessary that the stopper prevents the clamping nut from moving upward and further the bolt from moving upward.

  The clamping mechanism of the first invention has a tension member, and when the tension member is moved upward together with the bolt, the pair of clamping portions are drawn inward to approach each other. However, when the first invention is implemented, a pair of clamping portions are integrally provided as described in Patent Document 1, for example. By moving the inner metal fittings together with the bolts, various modes are possible, such as the pair of sandwiching portions can be moved inward by the outer metal fittings having a U-shaped cross section. Further, the support member of the second invention is deformable when the bolt moves upward, but the elastic or plastic property may be maintained even after the upward movement of the bolt is completed. It may have an elastic property until the upward movement is completed, and may be shifted to a plastic property after the upward movement of the bolt is completed. According to the fourth aspect of the present invention, there is provided a retaining portion that prevents the slide portion from coming out of the guide groove when the branching protrusion formed by the slit is bent in the plate thickness direction. Various modes are possible, such as not having to be provided, or providing a retaining portion by bending a protrusion protruding toward the distal end, or attaching a separate retaining pin or the like.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows three surfaces of a state in which two installation objects 12 are attached to a metal roof model 14 using a metal roof mounting bracket 10 (hereinafter simply referred to as a mounting bracket 10) according to an embodiment of the present invention. In the figure, (a) is a plan view, (b) is a front view seen from below (a), and (c) is a side view seen from the right side of (a). 2 is a perspective view, and FIG. 3 is a longitudinal sectional view taken along the line III-III in FIG. The metal roof model 14 represents a metal roof, and includes a protruding portion 16 corresponding to a hull portion, and the mounting bracket 10 is integrally fixed to the protruding portion 16 and supports the installation object 12. The installation object 12 is a frame of a solar power generation panel or the like.

  The mounting bracket 10 includes a support bracket 20, a clamping mechanism 22, and a presser bracket 24. The support bracket 20 is fixed to the protruding portion 16 of the metal roof model 14, and includes a flat base member 30 on which the installation object 12 is placed, and a pair of side brackets assembled to both sides of the base member 30. 32, 34. FIG. 6 is a three-side view of the base member 30, where (a) is a plan view, (b) is a front view seen from below (a), and (c) is a side view seen from the right side of (a). The side view of (c) corresponds to the front view of FIG. 1 (b). FIG. 7 is a perspective view of the base member 30. The base member 30 is formed by bending a metal plate material into a rectangular shape, and has a rectangular base portion 36 on which the installation object 12 is placed and a lower surface side with predetermined gaps at four corners of the base portion 36. Folded portions 38a to 38d having a U-shaped cross section that is bent by 180 ° are provided, and a pair of guide grooves 40 and 42 are configured by the folded portions 38a and 38b, 38c and 38d. A pair of guards 44, 46 bent upward at substantially right angles are provided at both ends of the base portion 36 to position the installation object 12, and at the center of the base portion 36, A through hole 50 through which the cylindrical portion 102 (see FIG. 11) of the clamping nut 80 is inserted is provided. The folded portions 38a and 38c, 38b and 38d are connected to each other via tip connecting portions 52 and 54 provided in parallel with the guide grooves 40 and 42 sandwiched below the base portion 36, respectively. A semicircular cutout is provided at the front end edge of each of the front end connection portions 52, 54 corresponding to the through hole 50. Slits 56a to 56d are respectively provided between the protruding portion of the base portion 36 provided with the guards 44 and 46 and the folded portions 38a to 38d.

  The pair of side brackets 32 and 34 have the same shape and are assembled to the guide grooves 40 and 42 of the base member 30 symmetrically as is apparent from the front view of FIG. 8A and 8B are four views of one side bracket 32 located on the left side in the front view of FIG. 1B, where FIG. 8A is a plan view and FIG. 8B is a front view as viewed from below (a). , (C) is a bottom view from the bottom of (b), (d) is a side view from the right of (b), and (d) is a front view of FIG. 1 (b). Correspond. FIG. 9 is a perspective view of the side bracket 32. The side bracket 32 is formed by bending a metal plate material into a substantially U shape as is apparent from the side view of FIG. 8D. From the flat slide portion 60 and one end portion of the slide portion 60, the side bracket 32 is bent. A substantially L-shaped sandwiching portion 68 that extends downward and is bent so that its lower end protrudes toward the other side bracket 34 is provided. The slide portion 60 is fitted in the guide groove 40 of the base member 30 so as to be slidable in the left-right direction in FIG. 3 and is assembled to the base member 30 so as to be movable in a direction approaching the other side bracket 34. A semicircular cutout 66 corresponding to the through hole 50 is formed at the center of the tip of the slide portion 60.

  The sandwiching portion 68 includes a vertical plate portion 62 extending downward and a protruding plate portion 64 bent substantially at a right angle from the lower end of the vertical plate portion 62, and the protruding plate portion 64 is mounted on the metal roof model 14. In addition, a contact portion 70 that is bent approximately 90 ° upward and brought into surface contact with the protrusion 16 is provided at the tip of the protrusion 64. On both the left and right sides of the protruding plate portion 64, a pair of auxiliary leg portions 72 that are bent approximately 90 ° with respect to the protruding plate portion 64 and are placed on the metal roof model 14 together with the protruding plate portion 64 are provided. Further, the lower half portion of the vertical plate portion 62 is provided with a hooking hole 74 having a narrow upper portion and a wide lower portion. The hook hole 74 constitutes a part of the clamping mechanism 22. The side bracket 32 has U-shaped corners in FIG. 8 (d), the vertical plate portion 62, and the protruding plate portion 64, which are provided with bead-shaped reinforcing ribs 76 by pressing, respectively. Reinforcing flanges 78 bent by approximately 90 ° are provided on both sides of the vertical plate portion 62.

  The clamping mechanism 22 includes a clamping nut in which a bolt 48 inserted upward in a through hole 50 provided in the base portion 36 is screwed into the bolt 48 and seated on the upper surface of the base portion 36. By being moved upward with respect to the base portion 36 with the rotation of 80, the pair of holding portions 68 are brought close to each other to hold the protruding portion 16, and the tension member 82 that is hooked in the hooking hole 74. , A bolt 48, and a clamping nut 80. 10A and 10B are three views of the tension member 82, where FIG. 10A is a plan view, FIG. 10B is a front view viewed from below (a), and FIG. 10C is a side view viewed from the right side of FIG. Yes, the front view of (b) corresponds to the front view of Fig. 1 (b). The tension member 82 is formed by bending a longitudinal metal plate and has a first tension member 82a and a second tension member 82b. In the first tension member 82 a and the second tension member 82 b, a connection hole 86 is provided in the connection plane part 84 at one end portion in the longitudinal direction and is connected to the bolt 48, and on both sides of the connection plane part 84. A pair of inclined portions 88 that are inclined obliquely downward are provided. The connection hole 86 of the first tension member 82 a and the second tension member 82 b has a larger diameter than the shaft part (male thread part) of the bolt 48 and a smaller diameter than the head part 90. The bolt 48 is inserted into the overlapped connecting hole 86 from the lower side of the connecting flat portion 84 of the second tension member 82b, so that the head 90 of the bolt 48 is attached to the lower surface of the connecting flat portion 84 of the second tensile member 82b. The tension member 82 (the first tension member 82 a and the second tension member 82 b) is moved upward together with the bolt 48 with the rotation of the clamping nut 80. In the second tension member 82b, a pair of semicircular engaging protrusions 92 are provided in the vicinity of the connection hole 86 by a press so that the bolt 48 is prevented from rotating by being engaged with the head 90. It has become. Further, in the first tension member 82a, reinforcing flanges 94 bent downward by approximately 90 ° are formed on both side portions of the connecting flat surface portion 84, that is, on the side end portion outside the engagement protrusion 92 of the second tension member 82b. Is provided.

  The tips of the inclined portions 88 of the first tension member 82a and the second tension member 82b, that is, the other ends in the longitudinal direction of the tension members 82 (the first tension member 82a and the second tension member 82b) are each T-shaped. A wide locking portion 96 is provided so that the locking portion 96 protrudes outward from the hooking hole 74 and is locked in the hooking hole 74. The wide portion 74a on the lower side of the hooking hole 74 has a width dimension larger than that of the locking portion 96, and the locking portion 96 can be inserted outward from the hooking hole 74, while the width on the upper side of the hooking hole 74 is narrow. The width of the portion 74b is narrower than that of the locking portion 96, and the locking member 96 is narrower when the tension member 82 (the first tension member 82a and the second tension member 82b) is moved upward together with the bolt 48. Locked to the portion 74b. When the tension members 82 (the first tension member 82a and the second tension member 82b) are further lifted together with the bolts 48, the pair of sandwiching portions 68 of the left and right side brackets 32, 34 become the tension member 82 (first first member). It is pulled inward via the tension member 82a and the second tension member 82b) and is brought close to each other so as to sandwich the protruding portion 16 of the metal roof model 14 from both sides. As is apparent from FIG. 3, the inclined portion 88 of the tension member 82 (the first tension member 82a and the second tension member 82b) has a pair of sandwiching portions 68 formed by pulling the central connecting plane portion 84 upward. Pulled inward toward each other.

When the upward movement of the bolt 48 is completed, the lower surface of the connecting flat portion 84 of the first tension member 82a and the upper surface of the connecting flat portion 84 of the second tensile member 82b are overlapped with each other ((b in FIG. 1). ), FIG. 3, FIG. 4 (c), and FIG. 5 etc.).

  An extended portion 162 that extends substantially horizontally in the longitudinal direction is provided at the distal end of the wide locking portion 96. As shown in FIG. 4A, the dimension of the extension 162 is such that both ends of the tension member 82 are sandwiched between the pair of side brackets 32 and 34 in the expanded state. 68, so that the extended portion 162 and the hooking hole 74 are maintained in an engaged state, and as shown in FIGS. The work of placing the support bracket 20 on the protruding portion 16 of the metal roof model 14 can be performed more easily while the side brackets 32 and 34 are moved closer to and away from each other.

  The tension member 82 (the first tension member 82a and the second tension member 82b) is provided with a support member 202 as shown in FIG. The support member 202 is an elastic body and can be deformed when the bolt 48 moves upward. In the center of the support member 202, a connecting plane part 204 is provided. The connecting plane portion 204 of the support member 202 is in close contact with the lower surface of the connecting plane portion 84 of the second tension member 82b between the pair of engaging protrusions 92. In the close contact state, the connection hole provided in the center of the connection plane portion 204 is overlapped with the connection hole 86 of the second tension member 82b. The connection hole of the connection plane part 204 is larger in diameter than the shaft part (male thread part) of the bolt 48 and smaller in diameter than the head part 90 in the same manner as the connection hole 86 of the second tension member 82b. On both sides of the connecting plane portion 204, a pair of inclined portions 206 that are inclined obliquely downward is provided. A gripping portion 208 is provided at the tip of the pair of inclined portions 206. The holding part 208 is fixed to the inclined part 88 of the tension member 82 (the first tension member 82a and the second tension member 82b). With such a configuration, the support member 202 maintains the relative positional relationship between the first tension member 82a and the second tension member 82b.

  As is apparent from the three-side view shown in FIG. 11 and the longitudinal cross-sectional view of FIG. 12, the clamping nut 80 is continuous with the nut portion 100 provided with a female screw to be screwed into the bolt 48. The cylindrical portion 102 provided concentrically and the external screw 104 provided at the tip side portion of the cylindrical portion 102 are integrally provided. The inner diameter of the cylindrical portion 102 is larger than the outer diameter of the external thread of the bolt 48, the through hole 50 provided in the base portion 36 is larger than the outer diameter of the cylindrical portion 102, and the cylindrical portion 102 has the through hole 50. Inserted inside. Further, a flange 106 having a diameter larger than that of the through hole 50 is provided at a boundary portion between the nut portion 100 and the cylindrical portion 102 so as to be seated on the upper surface of the base portion 36. As apparent from FIG. 3, the male screw 104 is provided so as to protrude below the distal end coupling portions 52 and 54 of the base member 30 in a state where the flange 106 is seated on the upper surface of the base portion 36. When the fixing nut 108 is screwed onto the male screw 104, the upward movement of the clamping nut 80 relative to the base member 30 is restricted. The fixing nut 108 corresponds to a stopper, and is easier to assemble than an E-type retaining ring.

  In this embodiment, the cylindrical portion 102 is larger in diameter than the male screw 104 and provided with a step, and the fixing nut 108 is tightened and fixed integrally until it contacts the step. The length L of the cylindrical portion 102 is slightly larger than the thickness d of the base portion 36 of the base member 30 (see FIG. 6B), and the fixing nut 108 is fastened to the external screw 104. The clamping nut 80 fixed integrally is held so as not to move relative to the base member 30 in the axial direction and to rotate about the axis. As a result, the bolt 48 screwed into the clamping nut 80 and prevented from rotating by the engaging projection 92 of the tension member 82 also moves up and down relative to the base member 30 as long as the clamping nut 80 does not rotate. Fixed immovable. 11A is a plan view seen from the nut 100 side, FIG. 11B is a front view seen from below (a), and FIG. 11C is a bottom view seen from below (b). The cylindrical portion 102 corresponds to a cylindrical portion. Moreover, the longitudinal cross-sectional view of FIG. 12 is corresponded in the XII-XII arrow cross section in FIG. 11 (a).

  The presser fitting 24 is formed by bending a long-shaped metal plate material, and a flat fastening portion 110 provided at a central portion in the longitudinal direction has a bolt 48 protruding upward from the clamping nut 80. A through hole 112 through which a shaft portion (male thread) is inserted is provided, a pair of vertical wall portions 114 extending symmetrically substantially vertically upward on both sides of the fastening portion 110, and the vertical wall portions A pair of flat pinching portions 116 extending outward from the upper end of 114 are provided. The presser fitting 24 is arranged so that the pair of clamping parts 116 are substantially in close contact with the upper surfaces of the pair of installation objects 12 placed on the base part 36, and are screwed onto the bolts 48 protruding upward from the fastening part 110. When the combined mounting nut 118 is tightened, the installation object 12 is pinched between the base portion 36 and the pinching portion 116 and is integrally fixed to the support bracket 20. As is apparent from FIG. 1 (c), the installation object 12 is positioned between the guards 44 and 46 provided on the base portion 36 and the vertical wall portion 114 of the presser fitting 24. The presser fitting 24 is provided with a pair of bead-shaped reinforcing ribs 119 along the longitudinal direction by pressing.

  In the mounting bracket 10 configured as described above, first, as shown in FIG. 4, for example, the support bracket 20 is attached to the metal roof model 14 by the clamping mechanism 22. FIG. 4A shows an assembling process, in which the tension member 82 and the fixing nut 108 are attached to the bolt 48 prior to installation on the metal roof model 14, and the cylindrical portion 102 has the through hole 50 of the base member 30. The slide nuts 60 are inserted into the guide nuts 40 and 42 on both sides of the base member 30 in this state, and the slide portions 60 of the pair of side brackets 32 and 34 are respectively inserted and assembled. Further, by tightening and fixing the fixing nut 108 to the male screw 104 of the clamping nut 80 and integrally fixing the clamping nut 80, the clamping nut 80 can rotate around the axis relative to the base member 30 and move in the axial direction. Held impossible. At this time, the sandwiching portions 68 of the pair of side brackets 32 and 34 are separated from each other by a width corresponding to the protruding portion 16, and the support bracket 20 is lowered as shown by an arrow A in the installation step (b). The pair of sandwiching portions 68 are placed on the metal roof model 14 and the pair of side brackets 32 and 34 are brought close to each other manually as indicated by an arrow B, and the projecting portions 16 are sandwiched by the pair of sandwiching portions 68. .

  In FIG. 4 (c), the clamping nut 80 is tightened, and the bolt 48 is moved upward with respect to the base member 30 by the clamping force, so that the pair of clamping parts 68 are mutually connected via the tension member 82. The protrusions 16 are firmly clamped by approaching each other. Thereby, the support bracket 20 is fixed to the metal roof model 14 with a fixing strength corresponding to the tightening force of the clamping nut 80. Further, the bolt 48 screwed to the clamping nut 80 that is held in the axially immovable relative to the base member 30 is fixed to the base member 30 and further to the support bracket 20 as long as the clamping nut 80 does not rotate. It is impossible to move up and down.

  FIG. 5 is a diagram for explaining a process of attaching the installation object 12 to the support bracket 20 disposed on the metal roof model 14 as described above. In the installation object mounting step (a), a pair of installation objects 12 is illustrated. Is placed on the base portion 36 of the base member 30. In the presser fitting arrangement step (b), the presser fittings 24 are arranged so that the pair of clamping parts 116 are substantially in close contact with the upper surfaces of the pair of installation objects 12, respectively. The installation nut 12 is clamped between the base part 36 and the clamping part 116 by screwing and tightening the mounting nut 118 to the bolt 48 protruding upward from the fastening part 110 of the metal fitting 24, so as to be integrated. Fixed to. Since the bolt 48 is fixed to the support bracket 20 so as not to move up and down, the installation object 12 is attached to the support bracket 20 with an attachment strength corresponding to the tightening force of the attachment nut 118.

  As described above, according to the mounting bracket 10 of the present embodiment, the fixing nut 108 is fastened to the male screw 104 of the holding nut 80, so that the holding nut 80 can rotate around the axis with respect to the base member 30. In addition, since the holding nut 20 is fixed to the metal roof model 14 by tightening the holding nut 80 and fixing the support bracket 20 to the metal roof model 14 because the holding nut 80 is tightened. The bolt 48 screwed into the nut 80 is not movable up and down with respect to the support bracket 20. For this reason, when the mounting nut 118 is fastened to the bolt 48 in order to fix the installation object 12, the bolt 48 may move upward with respect to the base portion 36 regardless of the tightening force of the mounting nut 118. The object 12 is blocked, and is clamped between the base portion 36 and the presser fitting 24 according to the tightening force of the mounting nut 118, and is fixed integrally to the support bracket 20. On the other hand, since the fixing strength of the support bracket 20 with respect to the projecting portion 16 of the metal roof model 14 is determined according to the tightening force of the clamping nut 80, the fixing strength of the support bracket 20 and the mounting strength of the installation object 12 are eventually set to each other. It can be appropriately determined independently without being affected.

  In addition, the pair of wide locking portions 96 provided at both ends of the tension member 82 are locked in the hook holes 74 of the pair of clamping portions 68, respectively, and the tensioning nuts 80 are rotated as the clamping nut 80 rotates. When the member 82 is moved upward together with the bolt 48, the pair of sandwiching portions 68 are pulled inward to approach each other. It is advantageous in terms of strength as compared with the case where the parts are brought close to each other, and it is possible to fix the support bracket 20 to the metal roof model 14 with high fixing strength while configuring the clamping mechanism 22 including the tension member 82 simply and inexpensively. it can.

  In addition, since the tension member 82 locked to the pair of sandwiching portions 68 is divided into two parts, a first tension member 82a and a second tension member 82b, a state where the pair of sandwiching portions 68 are largely separated can be secured. Even if the protruding portion 16 of the metal roof model 14 has various shapes and widths, the protruding portion 16 of the metal roof model 14 can be held between the pair of holding portions 68. Further, the first tension member 82 a and the second tension member 82 b each have a connecting flat surface portion 84 provided on the opposite side to the locking portion 96. When the projecting portion 16 of the metal roof model 14 is sandwiched by the pair of sandwiching portions 68, the upward movement of the bolt 48 is completed, and the connection plane portion 84 of the first tension member 82a and the connection plane portion 84 of the second tension member 82b are connected. It is overlapped by face-to-face. That is, the first tension member 82a and the second tension member 82b can be easily moved until immediately before the projecting portion 16 of the metal roof model 14 is sandwiched between the pair of sandwiching portions 68, so that the clamping nut 80 is tightened. The tension member 82 (the first tension member 82a and the second tension member 82b) is not deformed by the force. Therefore, the clamping force of the clamping nut 80 is efficiently used as the force for clamping the protruding portion 16 of the metal roof model 14.

  The support member 202 maintains the relative positional relationship between the first tension member 82a and the second tension member 82b, and is deformed when the bolt 48 moves upward. That is, at least until the protruding portion 16 of the metal roof model 14 is clamped by the pair of clamping portions 68, the first tension member 82a and the second tension member 82b are integrally handled by the support member 202. Therefore, even if the tension member 82 is divided into the first tension member 82a and the second tension member 82b, the handling of the tension member 82 is easy.

  In addition, the pair of sandwiching portions 68 are configured as separate bodies and each have a slide portion 60, and the slide portion 60 is inserted into the guide grooves 40 and 42 provided in the base member 30. Since the pair of sandwiching portions 68 are assembled to the base member 30 so as to be movable toward each other, compared to a case where the pair of sandwiching portions 68 are integrally connected to each other by deformation of the connecting portion, etc. The degree of freedom in designing the strength and shape of the sandwiching portion 68 is increased, and the size and weight can be reduced while securing the fixing strength of the support bracket 20.

  In addition, a fixing nut 108 is used as a stopper, and the vertical movement of the clamping nut 80 with respect to the base member 30 is restricted by being screwed to the male screw 104 of the clamping nut 80. Compared to the above, the assembly work is easy.

  Next, another embodiment of the present invention will be described. In the following embodiments, parts that are substantially the same as those in the above embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

  FIG. 13 is a three-side view corresponding to FIG. 1, (a) is a plan view, (b) is a front view seen from below (a), and (c) is a side view seen from the right side of (a). The mounting bracket 120 is different from the embodiment in that the holding bracket 122 is different. That is, the presser fitting 122 is for fixing a single installation object 12 and has an asymmetrical shape, and the upper part of FIG. 13C is the same as the presser fitting 24 across the fastening portion 110. Thus, the installation object 12 can be clamped and fixed between the base portion 36 and the pinching portion 116. On the other hand, an auxiliary leg portion 124 that is bent by approximately 90 ° from the fastening portion 110 to the base portion 36 side is provided on the lower portion on the opposite side across the fastening portion 110, and contacts the upper surface of the base portion 36. By doing so, the posture of the presser fitting 122 is defined, and the installation object 12 can be securely clamped and fixed to the base portion 36 by tightening the mounting nut 118.

  FIG. 14 is a front view corresponding to FIG. 1 (b), illustrating another embodiment of the support bracket. The support bracket 130 has side brackets 132, 134 which are compared to the support bracket 20. Is different. The side brackets 132 and 134 have the same shape and, as is apparent from FIG. 16 showing a four-side view of one of the side brackets 132, have a slide part 60 and a clamping part 68. Although it is the same as the above embodiment in that it is assembled to the guide grooves 40 and 42 of the member 30, the slits 136 are respectively formed from the sides at the corners on both sides of the tip of the slide portion 60 (the upper end of FIG. 16 (a)). Is different in that an I-shaped branching protrusion 138 is formed. FIG. 16 is a four-side view corresponding to FIG. 8, where (a) is a plan view, (b) is a front view seen from below (a), and (c) is a bottom view seen from below (b). , (D) is a side view seen from the right side of (b), and the side view of (d) corresponds to FIG.

  Then, as shown in FIG. 17 (a), in the state where the slide portion 60 is inserted into the guide groove 40 from the front end side and the side bracket 132 is assembled to the base member 30, the branch protrusion 138 has the folded portion 38a. As shown in FIG. 17B, the branching projection 138 is bent in the plate thickness direction to provide a retaining portion 140, and the slide portion 60 is turned back when it slides out of the guide groove 40. The contact with the portion 38a is prevented from coming out. 18A is a plan view of a portion where the retaining portion 140 is provided, and FIG. 18B is a side view as seen from the right side of FIG. The branching protrusion 138 on the opposite side is also bent in the same manner and brought into contact with the turned-back portion 38b, so that it is prevented from coming out and twisting due to one-side contact is prevented. The same applies to the other side bracket 134. Since slits 56a to 56d are provided between the folded portions 38a to 38d of the base member 30 and the protruding portions provided with the guards 44 and 46, a punch is inserted from the slits 56a to 56d to branch. The protrusion 138 can be bent.

  Accordingly, the pair of side brackets 132 and 134 assembled to the base member 30 is prevented from being detached from the base member 30, and workability when the support bracket 130 is fixed to the metal roof model 14 is improved. FIG. 15 shows an expanded state in which the side brackets 132 and 134 are separated from each other until the retaining portions 140 of the pair of side brackets 132 and 134 come into contact with the folded portions 38a to 38d, respectively. As shown in (a) to (b), the support bracket 130 can be easily installed on the protrusion 16 of the metal roof model 14.

  In particular, the branching protrusion 138 is provided in a cantilevered manner at the tip corner of the slide part 60 by a slit 136 provided from the side part of the slide part 60, and is bent laterally with respect to the sliding direction of the slide part 60. Therefore, the bent portion 140 of the retaining portion 140 is not engaged with the guide grooves 40 and 42 and the movement of the slide portion 60 is not obstructed, and the pair of side brackets 132 and 134 are formed. Can be easily approached and separated, and the work of fixing the support bracket 130 to the protrusion 16 of the metal roof model 14 is further facilitated. That is, for example, as shown in FIG. 19 (a), a projection 150 is provided at the tip of the slide portion 60 so as to protrude toward the tip (rightward in FIG. 19 (a)). When the retaining portion 152 is provided by bending as shown in b), the bending R portion of the retaining portion 152 may be engaged with the guide groove 40 and the sliding movement of the slide portion 60 may be hindered. In addition, the aspect which provides such a retaining part 152 is also one Example of this invention.

  In the embodiment of FIG. 14, as is clear from FIG. 16, a plurality (two in the embodiment) of locking claws 142 are provided on the upper edge of the abutting portion 70 of the sandwiching portion 68 of the pair of side brackets 132 and 134. Is provided so as to bite into the protrusion 16 of the metal roof model 14. The locking claw 142 is provided by forming a V-shaped groove on the upper end edge of the contact portion 70 by press working. Thereby, the position shift of the support bracket 130 with respect to the protrusion part 16 is suppressed, and it can fix still more firmly.

  As mentioned above, although the Example of this invention was described in detail based on drawing, these are one Embodiment to the last, This invention is implemented in the aspect which added the various change and improvement based on the knowledge of those skilled in the art. be able to.

  For example, in the tension member 160 shown on the three surfaces in FIG. 20, the extension portion 162 (see FIG. 10) is omitted from the tip of the locking portion 96 as compared with the tension member 82. Such a tension member 160 may be used in place of the tension member 82.

  DESCRIPTION OF SYMBOLS 10, 120: Metal roof mounting bracket 12: Installation object 14: Metal roof model (metal roof) 16: Protruding part 20, 130: Support bracket 22: Clamping mechanism 24, 122: Holding metal part 36: Base part 38a-38d: Folded portions 40, 42: guide grooves 48: bolts 50: through holes 60: slide portions 68: clamping portions 74: hooking holes 80: nuts for clamping 82, 160: tension members 82a: first tension members 82b: second tension members 84: Connecting plane part 96: Locking part 102: Cylindrical part (cylinder part) 104: Male screw 108: Fixing nut (stopper) 118: Nut for mounting 136: Slit 138: Branching protrusion 140: Detachment part 202: Support member

Claims (5)

Each has a pair of clamping parts that extend downward and bend so that the lower ends protrude in a direction approaching each other, and are integrally fixed to the projecting parts with the projecting parts of the metal roof sandwiched from both sides. A support bracket having a base portion on which an object is placed;
A bolt inserted upward in a through hole provided in the base portion is screwed into the bolt and is rotated with respect to the base portion as the clamping nut seated on the upper surface of the base portion rotates. A clamping mechanism that causes the pair of clamping parts to approach each other so as to clamp the protruding part by being moved upwards,
The mounting nut, which is disposed above the base portion with the installation object sandwiched therebetween and is screwed to the upper end portion of the bolt protruding upward from the clamping nut, is tightened. A presser fitting that clamps and fixes the installation object with
In a metal roof mounting bracket having
The clamping nut has a cylindrical portion that passes through the through hole of the base portion, and a stopper is attached to a portion where the cylindrical portion protrudes downward from the base portion, and moves upward with respect to the base portion. It was stopped,
The clamping mechanism includes a tension member that is connected to the bolt at a central portion in a longitudinal direction, and that both sides of the central portion are inclined obliquely downward, and a wide locking portion is provided at the tip. When the locking member of the tension member is moved upward together with the bolt in a state of protruding outward from the hooking holes provided in the pair of holding parts and being locked in the hooking hole, Pull the pair of clamping parts inward to approach each other,
The tension member is divided into two parts, a first tension member and a second tension member,
Each of the first tension member and the second tension member has a connecting plane portion provided on the side opposite to the locking portion,
The metal roof mounting bracket, wherein when the upward movement of the bolt is completed, the connection plane portion of the first tension member and the connection plane portion of the second tension member are overlapped with each other. The metal roof mounting bracket according to claim 1, further comprising a support member that maintains a relative positional relationship between the first tension member and the second tension member and is deformable when the bolt moves upward. . The pair of sandwiching portions are configured separately from each other, and at the upper ends of the pair of sandwiching portions, a flat plate-like slide portion projecting inward toward each other is integrally provided,
The base portion is provided with a pair of guide grooves into which the slide portion is slidably fitted,
When the slide portions are inserted into the guide grooves of the base portion, the lower end portions of the pair of sandwiching portions protrude in a direction approaching each other, and are movable in the approaching direction to the base portion. The metal roof mounting bracket according to claim 1 or 2, wherein the metal roof mounting bracket is assembled. On both sides of the tip of the slide portion, slits are provided from the sides, respectively, so that branching protrusions are formed in a cantilever shape at the corners of the tip,
The base portion is formed by bending a metal plate material into a rectangular shape, and includes four U-shaped folded portions bent at a lower surface side with a predetermined gap at four corners. The guide groove is formed by a portion,
In the state where the slide part is inserted into the guide groove from the tip side and the clamping part is assembled to the base part, the branching protrusion is bent in the thickness direction at a position protruding inward from the folded part. 4. The metal roof mounting according to claim 3, wherein when the slide part is pulled out from the guide groove, a retaining part is provided which is brought into contact with the folded part and prevents the slide part from coming out. 5. Hardware. The stopper is a fixing nut, and the upward movement of the clamping nut relative to the base portion is restricted by being screwed into a male screw provided in the cylindrical portion. The metal roof mounting bracket according to any one of the above.

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