JP5779783B2 - Bolt co-rotation prevention means and metal roof mounting bracket having the same - Google Patents

Description

  The present invention relates to an upper bolt fixing structure of a mounting bracket provided with an upper bolt for mounting an installation (for example, a solar panel) on an upper surface of a metal roof.

Examples of mounting brackets for mounting an installation such as a solar panel on a metal roof include those shown in Patent Document 1 below.
In Patent Document 1, as shown in FIG. 10, a rail bracket (mounting bracket) 4 provided with a rail fixing bolt (upper bolt) 4 c at a joint portion 1 a ′ of a (helical type) folded plate roof 1. Is attached by bolting.

Here, the rail fixing bolt (upper bolt) 4c is fixed to a rail bracket (mounting bracket). Generally, the following method is used for the fixing.
(1) Method of crushing and fixing the base of the bolt (2) Method of fixing using a special washer (3) Method of fixing the bolt by welding

JP 2011-236611 A

However, the fixing methods (1) to (3) have the following problems.
In the fixing method (1), a dedicated bolt and a die are required, but the dedicated bolt is not readily available and costs high.
In the fixing method (2), the cost of the washer is increased and the number of parts increases, so that the assembly workability is poor.
In the fixing method (3) above, the work process for welding the bolt is complicated, and the quality is not stable depending on the degree of welding.

  On the other hand, the inventor of the present application has an unprecedented new fixing structure that can easily and surely fix the upper bolt by the structure of the mounting bracket without adopting the above-described general fixing method of the upper bolt. We conducted intensive studies and research to provide them and completed the present invention.

In order to achieve the above object, a first invention of the present invention is an upper bolt fixing structure of a mounting bracket provided with an upper bolt for mounting an installation object on the upper surface of a metal roof, The first divided part has a long hole through which the upper bolt is inserted into the top surface, and a support part that supports the head of the upper bolt that is inserted under the top surface and faces part of the long hole. The second divided part has a top surface that overlaps the top surface of the first divided part, and is inserted through the long hole of the first divided part and its head is supported by the support portion. The bolt hole which penetrates the thread part of the upper bolt in is formed in the top surface.
According to a second aspect of the present invention, there is provided an upper bolt fixing structure for the mounting bracket, characterized in that the top surface of the first divided part and the second divided part is provided with a locking means for maintaining the overlapping state of the top surfaces. It is.
3rd invention is a metal roof mounting bracket provided with the upper bolt fixing structure of the mounting bracket which concerns on 1st invention or 2nd invention.
According to a fourth aspect of the present invention, there is provided a corotation preventing means for preventing co-rotation of the bolts of the fasteners provided transversely for fastening the first divided part and the second divided part combined in the horizontal direction. It is the same mounting bracket.
According to a fifth aspect of the present invention, the co-rotation preventing means forms a plurality of cut and raised pieces on the outer side of the contact portion of the mounting bracket that comes into contact with the bolt head inner surface, and abuts against the bolt head side surface. It is the same mounting bracket.

According to the present invention described above, the following effects are obtained.
(1) In the present invention, the mounting bracket includes a pair of divided parts, and the first divided part is a long hole through which the upper bolt is inserted into the top surface, and a part of the long hole on the lower side of the top surface. It has a support part that supports the head of the upper bolt that has been inserted face-to-face, and the second divided part has a top surface that overlaps the top surface of the first divided part, and is inserted into the long hole of the first divided part. By forming a bolt hole in the top surface that penetrates the screw part of the upper bolt at the position where the head is supported by the support part, first, after the upper bolt is inserted into the long hole of the first divided part By sliding in the longitudinal direction of the long hole, the head of the upper bolt is supported by the support portion and temporarily fixed to the first divided part. Next, when the tops of the second divided parts are combined so as to overlap the tops of the first divided parts, the screw part of the upper bolt penetrates the bolt hole formed in the top surface of the second divided parts. Regulate the sliding of the upper bolt. As a result, the upper bolt is fixed to the mounting bracket. That is, the upper bolt can be fixed easily and reliably by the structure of the mounting bracket.
(2) Since the top surface of the first divided part and the second divided part is provided with a locking means for maintaining the overlapped state of the top surfaces, the second divided part is removed from the top surface of the first divided part. Since the top surface can be prevented from coming off, the upper bolt can be fixed more reliably.
(3) Since the above-described upper bolt fixing structure is provided in the mounting bracket, the work of mounting an installation object (for example, a solar panel) on the upper surface of the metal roof can be performed extremely simply and reliably.
(4) Co-rotation of the bolt by providing a co-rotation prevention means for preventing the co-rotation of the bolt of the fastener provided transversely to tighten the first divided part and the second divided part combined in the horizontal direction. Thus, the fastening operation using the fasteners (bolts and nuts) can be performed more reliably and stably.
(5) The co-rotation preventing means tries to co-rotate by forming a plurality of cut and raised pieces on the outside of the contact portion of the mounting bracket that contacts the inner surface of the bolt head and bringing it into contact with the side surface of the head of the bolt. The rotational movement of the bolt can be restricted to prevent the bolt from rotating together. Even if the cut-and-raised piece is formed on the nut side, the cut-and-raised piece can be laid down when tightening the nut by using a washer or a flange nut (having a larger installation surface than the bolt head). Therefore, there is no particular problem, and a member in which the same cut and raised pieces are formed on the bolt side and the nut side can be used. That is, the common co-rotation preventing means using ribs or the like is inefficient because of the asymmetric shape using a member with ribs on the bolt side and a member without ribs on the nut side. On the other hand, since the common member can be used for the bolt side and the nut side by using the common rotation preventing means of the present invention, the number of parts can be reduced and the productivity can be improved. Moreover, since a general-purpose hexagon bolt can be used, parts procurement becomes easy.

Explanatory drawing (1) which shows embodiment of the upper volt | bolt fixing structure of an attachment metal fitting. Explanatory drawing (2) which shows embodiment of the upper volt | bolt fixing structure of an attachment metal fitting. Explanatory drawing (3) which shows embodiment of the upper volt | bolt fixing structure of an attachment metal fitting. Explanatory drawing (4) which shows embodiment of the upper volt | bolt fixing structure of an attachment metal fitting. Explanatory drawing which shows the use condition of the upper bolt fixing structure of a mounting bracket. Explanatory drawing (1) which shows the co-rotation prevention means of a volt | bolt. Explanatory drawing (2) which shows the co-rotation prevention means of a volt | bolt. Explanatory drawing (3) which shows a co-rotation prevention means of a volt | bolt. The perspective view which shows the attachment bracket provided with the co-rotation prevention means of the volt | bolt. Explanatory drawing which shows the prior art disclosed by patent document 1. FIG.

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an explanatory view (1) showing an embodiment of an upper bolt fixing structure of a mounting bracket according to the present invention. 1A is an overall perspective view, and FIG. 1B is an exploded view.
As shown in FIG. 1A, the upper bolt 10 is fixed to the mounting member 20 by the structure of the mounting member 20, that is, the structure of the first divided part 30 and the second divided part 40 constituting the mounting member 20. Yes.

As shown in FIG. 1 (b), the first divided part 30 is inserted into the top surface 31 through the long hole 32 through which the upper bolt 10 is inserted, and below the top surface 31 so as to face a part of the long hole 32. And a support portion 33 that supports the head portion 11 of the upper bolt 10.
In addition, the second divided part 40 has a top surface 41 that overlaps the top surface 31 of the first divided part 30, and is inserted into the long hole 32 of the first divided part 30 and has its head portion supported by the support portion 33. A bolt hole 42 is formed in the top surface 41 so as to pass through the threaded portion 12 of the upper bolt 10 at a position where 11 is supported.

2 and 3 are explanatory views (2) and (3) showing an embodiment of the upper bolt fixing structure of the mounting bracket according to the present invention, and explain the mechanism of the fixing structure of the upper bolt 10. FIG. 2 is a perspective view and FIG. 3 is a cross-sectional view illustrating the mechanism of the fixing structure of the upper bolt 10.
As shown in FIGS. 2 and 3, first, the upper bolt 10 is inserted into the elongated hole 32 of the first divided part 30 (FIGS. 2A and 3A), and then in the longitudinal direction of the elongated hole 32. By sliding, the head 11 of the upper bolt 10 is supported by the support 33 and temporarily fixed to the first divided part 30.

  Next, when the top surfaces 41 of the second divided parts 40 are combined so as to overlap the top surfaces 31 of the first divided parts 30 (FIGS. 2B and 3B), the second divided parts are exactly the same. The threaded portion 12 of the upper bolt 10 passes through the bolt hole 42 formed in the top surface 41 of 40, and the sliding of the upper bolt 10 is restricted (FIG. 3C). As a result, the upper bolt 10 is fixed to the mounting bracket 20. That is, the upper bolt 10 can be fixed easily and reliably by the structure of the mounting bracket 20.

FIG. 4 is an explanatory view (4) showing an embodiment of the upper bolt fixing structure of the mounting bracket according to the present invention, and describes an embodiment in which the upper bolt 10 is fixed more reliably.
As shown in FIG. 4, notch grooves 34, 34 are formed on the top surface 31 of the first divided part 30, and the insert pieces 43, 43 corresponding to the notch grooves 34, 34 are formed on the top surface of the second divided part 40. 41. Thus, the notch groove 34 and the insertion piece 43 that are engaged with each other are provided with locking means for maintaining the overlapping state of the top surfaces of the first divided part 30 and the second divided part 40. As a result, it is possible to prevent the top surface 41 of the second divided part 40 from coming off from the top surface 31 of the first divided part 30, so that the upper bolt 10 can be fixed more reliably.

FIG. 5 is an explanatory view showing a usage state of the upper bolt fixing structure of the mounting bracket.
A mounting member 21 shown in FIG. 5 is a mounting member for a vertical flat roof used for the vertical flat roof 50. By using the above-described fixing structure of the upper bolt 10 for the vertical flat roof mounting member 21, the work of mounting an installation 60 (for example, a solar panel) on the upper surface of the vertical flat roof 50 is extremely simple and reliable. Yes.
The above-described fixing structure of the upper bolt 10 can be used not only for the vertical flat roof mounting member but also for other metal roof mounting brackets.

FIGS. 6 and 7 are explanatory views (1) and (2) showing the co-rotation preventing means of the bolt.
As shown in FIGS. 6 and 7, the co-rotation preventing means for preventing the co-rotation of the bolt 71 of the fastener 70 provided horizontally across the members 80, 90, 80 is an inner surface 73 of the head 72 of the bolt 71. A plurality of cut and raised pieces 81 are formed on the outer side of the contact portion of the member 80 that comes into contact with each other (FIGS. 6A and 7A), and are brought into contact with the side surface 74 of the head 72 of the bolt 71 (see FIG. 6). 6 (b), FIGS. 7 (b) and (c)). That is, the rotational movement of the bolt 71 that tries to rotate together is cut and raised and restricted by the piece 81 to prevent the rotation of the bolt 71.

  Here, even if the cut-and-raised piece 81 is formed on the member 80 on the nut 75 side, by using a washer or a flange nut 76 (having a larger installation surface than the head 72 of the bolt 71), Since the cut-and-raised piece 81 can be laid at the time of tightening (FIG. 7 (b) → (c)), there is no particular problem, and the member 80 in which the same cut-and-raised piece 81 is formed on the bolt 71 side and the nut 75 side is used. be able to. That is, the common co-rotation preventing means using ribs and the like is inefficient because of the asymmetric shape using a member with ribs on the bolt side and a member without ribs on the nut side. On the other hand, since the common member can be used for the bolt side and the nut side by using the common rotation preventing means of the present invention, the number of parts can be reduced and the productivity can be improved. Moreover, since a general-purpose hexagon bolt can be used, parts procurement becomes easy.

FIG. 8 is an explanatory view (3) showing the bolt co-rotation preventing means, and illustrates a variation of the cut and raised piece 81.
In FIG. 8A, the cut and raised piece 81 a (rectangular shape) is formed so as to come into contact with the adjacent side surface 74 of the head 72 of the bolt 71.
In FIG. 8B, the cut-and-raised piece 81b (rectangular shape) is formed so as to come into contact with the opposite side surface 74 of the head 72 of the bolt 71.
In FIG. 8C, the cut-and-raised piece 81c (triangular shape) is formed so as to come into contact with the adjacent side surface 74 of the head 72 of the bolt 71.
In FIG. 8D, the cut-and-raised piece 81d (triangular shape) is formed so as to come into contact with the opposite side surface 74 of the head 72 of the bolt 71.
The cut and raised pieces 81a to 81d described above are examples, and the shape, position, and number of the cut and raised pieces 81 are not limited thereto. That is, the cut-and-raised piece 81 is in contact with the head side surface of the bolt, thereby restricting the rotational movement of the bolt to rotate together and preventing the bolt from rotating together. Any number.

FIG. 9 is a perspective view showing a mounting bracket provided with a bolt co-rotation preventing means.
A mounting member 22 shown in FIG. 9 is a vertical flat roof mounting member used for the vertical flat roof 50 shown in FIG. By using the above-described bolt co-rotation preventing means for the vertical flat roof mounting member 22, the work of mounting an installation 60 (for example, a solar panel) on the upper surface of the vertical flat roof 50 is extremely simple and reliable. Yes.
In addition, the above-described bolt co-rotation preventing means can be used not only for a vertical flat roof mounting member but also for other metal roof mounting brackets.

  The upper bolt fixing structure of the mounting bracket according to the present invention can be widely used for mounting brackets that require an upper bolt for mounting an installation on the upper surface of a metal roof. 6 to 8 can be widely used not only for metal roof mounting brackets but also for members fastened with bolts and nuts.

DESCRIPTION OF SYMBOLS 10 Upper bolt 11 Head 12 Screw part 20 Mounting member 21 Mounting member (Installation member for standing flat roof)
30 First divided part 31 Top part 32 Long hole 33 Support part 34 Notch groove 40 Second divided part 41 Top surface 42 Bolt hole 43 Insert piece 50 Standing flat roof 60 Installation object 70 Fastener 71 Bolt 72 Head 73 Inner surface 74 Side surface 75 Nut 76 Flange nut 80 Member 81 Cut and raised piece 90 Member

Claims (4)

A bolt co-rotation preventing means for preventing co-rotation of a bolt as a fastener provided transversely between members,
A plurality of cut and raised pieces are formed on the outside of the contact portion of the member that comes into contact with the inner surface of the bolt head, and the rotation movement of the bolt that tries to rotate together is regulated by the cut and raised pieces by contacting with the side surface of the bolt head. And preventing the bolts from rotating together,
For the same cut and raised piece formed on the member on the nut side, using a washer or flange nut with a larger installation surface than the bolt head, the bolt is characterized by laying the cut and raised piece when tightening the nut Means to prevent co-rotation.   The bolt rotation preventing means according to claim 1, wherein the cut and raised pieces are formed in a rectangular shape or a triangular shape. 3. The bolt co-rotation preventing means according to claim 1, wherein the cut and raised pieces are formed so as to abut on adjacent side faces or opposite side faces of the bolt head. A metal roof mounting bracket comprising the bolt co-rotation preventing means according to any one of claims 1 to 3 .

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