JP2013224573A - Fixture and fixing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixture which can be prevented from being damaged by dispersing a load acting on the vicinity of a through hole formed in the upper bottom of a folded plate, and allows construction on a folded plate roof.SOLUTION: A fixture 1 for fixing a frame 70 mounted on a roof formed of a folded plate 61 includes a lower abutting member 10 which is arranged on the undersurface of the upper bottom 62 of the folded plate 61 and abuts against a pair of webs 63 extending from the upper bottom 62, and a fastening member 30 which fastens the lower abutting member 10 and the folded plate 61.

Description

  The present invention relates to a fixing tool and a fixing method used for fixing a gantry mainly to a folded plate roof.

  Patent Document 1 describes a fixing device for fixing a pedestal 102 placed on a folded plate roof 100 as shown in FIG. This fixing device includes a detent fitting 103, a lower fitting 104, a bolt 105, and a nut 106. The detent metal fitting 103 is arranged on the upper surface of the gantry 102, and the lower metal fitting 104 is arranged on the lower surface side of the upper bottom of the folded plate 101. Bolts 105 are inserted through the locking bracket 103, the base 102, the folded plate 101, and the lower bracket 104 in this order, and the nuts 106 are screwed into the bolts 105 to fix the base 102 to the folded plate roof 100. Has been. When this fixing device is used, the installation work can be performed by one worker under the folded roof 100.

However, for example, when the solar cell module is installed on the gantry 102, the lift acting on the solar cell module is applied only to the upper bottom of the folded plate 101 through this fixing device, and the bolt 105 formed on the folded plate 101 is used. There is a risk of damage near the insertion hole.
In addition, in a building in which a ceiling board was pasted on the lower side of the folded-plate roof 100, construction could not be performed unless the ceiling board was removed.

Japanese Patent No. 3748445

  An object of the present invention is to provide a fixing device and a fixing method that can disperse a load in the vicinity of an insertion hole formed in the upper bottom of a folded plate, prevent the breakage, and can be constructed on the upper side of the folded plate roof. To do.

(1) As means for solving the above problems, the fixture of the present invention is constituted by a folded plate having an upper base, a lower base, and a pair of webs extending from the upper base to the lower base. A fixture for fixing a pedestal placed on the surface member,
A lower abutting member disposed on the lower surface side of the upper bottom and abutting against the pair of webs; and a tightening member for clamping the lower abutting member and the folded plate.

(2) In the fixing device according to (1), the lowering member is formed in a cross-sectional shape and is interposed between a pair of inclined surfaces that contact the pair of webs and the pair of inclined surfaces. And an interposed surface facing the upper base.

(3) In the fixing device according to (2), an inclination angle of the inclined surface with respect to the upper bottom is gentler than an inclination angle of the web with respect to the upper bottom.

(4) In the fixtures according to (1) to (3), the tightening member is screwed into the interposition surface of the lowering member and the upper bottom in this order and the bolt. Possible nuts,
The width of the lowering member is smaller than the hole diameter of the insertion hole of the bolt formed in the upper bottom.

(5) In the fixing device according to (4), the lowering member includes a restricting portion that is in contact with a side surface of the head of the bolt on the back side of the interposition surface.

(6) Further, in the fixing device of (4) or (5), a string-like hanging member attached to a screw tip of the bolt is provided.

(7) Furthermore, in the fixing device according to (6), the fastener is connected to the bolt via the suspension member, and has a stopper whose outer shape is larger than the insertion hole of the bolt formed in the mount. Features.

(8) The fixing method according to the present invention includes an upper base, a lower base, and a pedestal placed on a surface member formed of a folded plate having a pair of webs extending from the upper base to the lower base. A fixing method for fixing,
A fixing step according to any one of (4) to (7) above, a preparation step for inserting the bolt into the lowering member, and a hole forming step for forming an insertion hole for the bolt in the upper bottom And placing the lower contact member on the lower surface side of the upper base by letting the insertion hole of the bolt into place, and pulling up the bolt to bring the lower contact member into contact with the pair of webs; And a tightening step of screwing the nut onto the bolt.

  According to the fixture of the present invention, the lower contact member disposed on the lower surface side of the upper bottom of the folded plate is fixed in contact with the pair of webs formed from the upper bottom to the lower bottom of the folded plate. For this reason, the upward load which a fixing tool receives from a mount frame, such as the lift which acts on a solar cell module, can be disperse | distributed to a pair of webs, and breakage of a folded plate can be avoided.

  According to the fixing method of the present invention, the lowering member can be placed from the upper surface side to the lower surface side of the folded plate while being hidden in the insertion hole formed in the upper bottom of the folded plate. For this reason, it is possible to perform the installation work alone on the upper side of the folded plate roof. Moreover, even if it is a building where the ceiling board is stuck on the lower side of the folded-plate roof, it can be constructed without removing the ceiling board.

It is a general view of the folded-plate roof which fixed the mount frame using the fixing tool of this invention. It is the perspective view which showed the fixing tool of Example 1. FIG. (A) It is the figure which showed the fixation aspect of the mount frame of Example 1 before a fastening operation | work. (B) It is the figure which showed the fixation aspect of the mount frame of Example 1 after a fastening operation | work. (A) It is the perspective view which showed the other form of the lower contact member of Example 1. FIG. (B) It is the perspective view which showed the further another form of the lowering member of Example 1. FIG. It is the perspective view which showed the fixing tool of Example 2. FIG. It is the figure which showed the arrangement | positioning method of a lower contact member. FIG. 10 is a perspective view showing another aspect of the fixture of Example 2. It is the perspective view which showed the aspect of the other attaching part. It is the figure which showed the fixation aspect of the mount frame of Example 3. FIG. It is the figure which showed the conventional fixing device.

  Hereinafter, the fixing tool and fixing method of the present invention will be described with reference to the drawings. A fixing tool fixes the mount mounted on the surface member comprised by the folding plate provided with the upper base, the lower bottom, and a pair of web extended from this upper base to the lower base. In the present embodiment, as shown in FIG. 1, the present invention will be described by taking a folded roof 60 as an example of the surface member. In addition, the same code | symbol shown over each figure shows the same or similar member and thing.

  As shown in FIGS. 2 and 3, the fixture 1 of the present invention includes a lower contact member 10, an upper contact member 20, and a tightening member 30.

  The contact member 10 of the present invention is a plate or rod made of metal such as iron, stainless steel or aluminum. For example, it is formed by bending a stainless plate-like body. As an example of the dimensions of the lower contact member 10, the plate width dimension L1 is 18 mm, the longitudinal dimension (L2 + 2L3) is 90 mm, and the plate thickness is 4 mm. However, each dimension is not limited to these, and is determined in consideration of the fixing strength of the gantry 70 if the longitudinal dimension is equal to or larger than the width dimension of the upper base 62. The lower contact member 10 is disposed on the lower surface side of the upper bottom 62 of the folded plate 61 and has a pair of inclined surfaces 11 and an intervening surface 12.

  As shown in FIGS. 2 and 3, the pair of inclined surfaces 11 correspond to a pair of webs 63 extending in a cross-section from both ends in the longitudinal direction of the interposition surface 12 and extending from the upper base 62 toward the lower base. Touch. The dimensions of the inclined surface 11 are, for example, a long dimension L3 of 30 mm and a short dimension of 18 mm. As shown in FIG. 3A, the inclined surface 11 is inclined more gently than the inclination angle R2 of the web 63 with respect to the upper bottom 62 at an inclination angle R1 with respect to the upper bottom 62. For this reason, before the lower contact member 10 and the upper contact member 20 are tightened, only the tip portion 14 of each inclined surface 11 abuts on the web 63 and a gap C is formed between the interposition surface 12 and the upper bottom 62. Is done. When the lower contact member 10 and the upper contact member 20 are tightened by the tightening member 30 described later, the lower contact member 10 is pulled up toward the upper bottom 62. After the tightening, as shown in FIG. 3B, the inclined surface 11 of the lower contact member 10 is deformed along the web, so that the entire surface of the pair of inclined surfaces 11 becomes the web 63 and the entire surface of the interposition surface 12. Is brought into contact with the upper base 62.

  As shown in FIGS. 2 and 3, the interposed surface 12 is interposed between the pair of inclined surfaces 11 and faces the upper bottom 62. Further, the interposition surface 12 includes an insertion hole 13 for the bolt 31 at the center thereof. As for the dimension of the interposition surface 12, for example, the longitudinal dimension L2 is 30 mm and is substantially the same as the width of the upper base 62. However, the present invention is not limited to this, and the longitudinal dimension L2 of the interposition surface 12 only needs to be smaller than the pitch of the folded plate 61 minus the width of the upper base 62.

  As shown in FIGS. 2 and 3, the upper member 20 is a member that is disposed on a pedestal 70 placed on the folded plate roof 60 and is formed according to the outer shape of the pedestal 70. The upper contact member 20 is, for example, a stainless plate having a side of 25 mm and a thickness of 2 mm. The upper contact member 20 may be made of other metal such as iron. The shape is not limited to a square, and may be another polygon, a circle, or a shape bent along the outer shape of the gantry 70. The upper contact member 20 includes an insertion hole 21 through which a bolt 31 passes at the center.

  As shown in FIGS. 2 and 3, the fastening member 30 of the present invention includes an insertion hole 13 formed in the interposition surface 12 of the lowering member 10 and an upper bottom 62 of the folded plate 61 from the lower surface side of the folded plate 61. A bolt 31 inserted in this order into an insertion hole 64 formed in the insertion hole 71, an insertion hole 71 formed in the mount 70, an insertion hole 21 formed in the upper contact member 20, and a washer 33 disposed on the upper contact member 20. And a nut 32 that can be screwed onto the bolt 31. The length of the bolt 31 is not particularly limited, and a long bolt 31 may be used, and a portion that protrudes excessively from the nut 32 may be cut after construction.

  The gantry 70 is fixed to the folded plate 61 in a state where it is strongly held between the upper abutting member 20 disposed thereon and the lower abutting member 10 disposed on the lower surface side of the upper bottom 62 of the folded plate 61.

  In the fixture 1 of the present invention, the lower contact member 10 disposed on the lower surface side of the upper base 62 of the folded plate 61 abuts against a pair of webs 63 extending from the upper base 62 to fix the gantry 70. For this reason, the upward load received from the gantry 70 can be distributed to the web 63, and the breakage of the folded plate 61 can be avoided.

  Further, in the fixture 1 of the present invention, the inclination angle of the inclined surface 11 with respect to the upper bottom 62 is gentler than the inclination angle of the web 63 with respect to the upper bottom 62. When the tightening member 30 is tightened with a predetermined torque, the pair of inclined surfaces 11 are deformed along the pair of webs 63, and the interposition surface 12 and the pair of inclined surfaces 11 are securely connected to the upper bottom 62 of the folded plate 61 and It can be brought into contact with the web 63. Therefore, the upward load received from the gantry 70 can be evenly distributed to the upper base 62 and the web 63 of the folded plate 61. Further, the bolt 31 receives a vertically downward force from the lowering member 10. For this reason, loosening of the bolt 31 can be prevented.

  The contact member 10 of the present invention may have a shape as shown in FIG. In the lower contact member 10 shown in FIG. 4A, an interposition surface 12 is formed at the lower end portion of the inclined surface 11 having a C-shaped cross section. In the lower contact member 10 shown in FIG. 4B, an interposition surface 12 is formed at the center of an inclined surface 11 having a cross-sectionally C shape.

  As shown in FIGS. 5 and 6, the fixture 2 of the present invention is attached to the lower contact member 10 that can be inserted into the insertion holes 71 and 64 formed in the mount 70 and the folded plate 61, and the screw 31 of the bolt 31. A possible suspension member 40 may be provided.

  The lower contact member 10 has a plate shape, and the plate width L1 of the lower contact member 10 is narrower than the hole diameters of the insertion holes 71 and 64 formed in the upper base 62 of the gantry 70 and the folded plate 61. In this embodiment, a specific example of each dimension is shown. The diameter of the insertion hole formed in the gantry 70 and the folded plate 61 is 20 mm, the plate width of the lower contact member 10 is 18 mm, and the plate thickness is 4 mm. . The lower contact member 10 is not limited to a plate shape but may be a rod shape.

  The suspension member 40 is a string-like member that can be attached to an attachment portion 34 formed at the screw tip of the bolt 31. The hanging member 40 is, for example, a strap, a chain, or the like formed from synthetic resin, cotton, metal, or the like.

  In this embodiment, a hole through which the hanging member 40 can be inserted is formed in the screw tip of the bolt 31 as the attachment portion 34. The suspension member 40 is passed through the attachment portion 34 and formed into a ring shape, and is used as a strap. The suspension member 40 may be attached to the attachment portion 34 via a hook in order to facilitate removal from the bolt 31 after construction. Further, the suspension member 40 may be directly attached to the screw thread without forming the hole for the suspension member.

An installation process of the gantry 70 using the fixture 2 will be described.
(1) Preparation Step The bolt 31 is inserted from the back side of the interposition surface 12 of the lower contact member 10, and the hanging member 40 is attached to the attachment portion 34 of the bolt 31. The suspension member 40 is inserted through the insertion hole 21 and the nut 32 of the upper member 20 in this order, and the fixture 2 is set in the state shown in FIG.
(2) Drilling process From the top of the folded plate roof 60, the insertion hole 64 is formed in the upper bottom 62 of the folded plate 61, and the mount 70 is mounted. When the insertion hole 71 is not formed in the gantry 70, after the gantry 70 is placed on the folded plate roof 60, the insertion holes 64 and 71 are simultaneously formed in the upper base 62 of the gantry 70 and the folded plate 61. May be.
(3) Arrangement Step As shown in FIG. 6, while holding the suspension member 40 on the upper side of the folded plate roof 60, the lowering member 10 and the bolt 31 are inserted into the insertion hole 72 of the pedestal 70 and the insertion hole of the folded plate 61. It is placed in the lower surface side of the upper base 62 of the folded plate 61 so as to be immersed in the 64. At this time, first, the bolt 31 is submerged, and then the lower contact member 10 is submerged. Then, the suspension member 40 is pulled up, and the bolt 31 is inserted through the insertion holes 64, 71, and 21 of the upper base 62, the gantry 70, and the upper contact member 20 in this order. Further, the suspension member 40 is pulled up, and the inclined surface 11 of the lower contact member 10 is brought into contact with the web 63 of the folded plate 61.
(4) Tightening process The nut 32 is screwed onto the bolt 31 via the washer 33.

  In this fixture 2, the lowering member 10 can be inserted into the insertion hole 64 of the folded plate 61 and the insertion hole 71 of the mount 70. Therefore, the operator can arrange the lowering member 10 and the bolt 31 below the folded plate 61 on the upper side of the folded plate roof 60. Therefore, the gantry 70 can be installed without removing the ceiling even in a building that could not be constructed without removing the ceiling. Further, by holding the suspension member 40 on the roof at the time of construction, it is possible to prevent the lowering member 10 and the bolt 31 arranged below the folded plate roof 60 from falling.

  As shown in FIG. 7, the fixture of the present embodiment may be a fixture 3 having a stopper 50 connected to the mounting portion 34 of the bolt 31 via a hanging member 40. The shape of the stopper 50 is not particularly limited as long as the outer dimension thereof is larger than the insertion hole 71 of the gantry 70. For example, a sphere having a sphere diameter larger than the diameter of the insertion hole 71 of the gantry 70, a rod body, a plate body, or the like longer than the diameter of the insertion hole 71 can be used. The material of the stopper 50 is not particularly limited, and wood, resin, metal, or the like can be used.

  In this embodiment, as a specific example, the stopper 50 is a sphere having a sphere diameter of 25 mm as shown in FIG. One end of a string-like suspension member 40 is attached to the stopper 50. The other end of the suspension member 40 is connected to a hole formed in the attachment portion 34 of the bolt 31.

  The stopper 50 connected to the bolt 31 via the suspension member 40 does not pass through the insertion hole 71 of the gantry 70. For this reason, at the time of construction, it is possible to prevent the lower contact member 10 and the bolt 31 arranged on the lower side of the folded plate roof 60 from falling.

  Further, as another aspect of the mounting portion of the present embodiment, as shown in FIG. 8, for the hanging member into which the female screw portion 36 screwed into the screw tip of the bolt 31 and the hanging member 40 are inserted. You may comprise by the attaching part 35 provided with the hole 37. FIG. The female thread portion 36 is formed by shrinking one opening portion of a shrink film tube into which the screw tip of the bolt 31 is inserted in close contact with the screw thread. The suspension member hole 37 is formed in the other opening of the tube.

  By using this attachment portion 35, it is possible to reduce the labor and cost of performing special processing on each bolt 31 of the plurality of fixtures 1 that fix the gantry 70.

  Further, the mounting portion 35 in which the female thread portion 36 is formed can be detached from the bolt 31 by being rotated in the opposite direction with respect to the male screw of the bolt 31, and can be screwed onto the screw tip of another bolt 31. . Therefore, this single attachment portion 35 can be used to attach a plurality of fixtures 1.

  As shown in FIG. 9, the fixture of the present invention may include an upper contact member 22 disposed between the folded plate 61 and the mount 73. The upper contact member 22 is a metal plate such as stainless steel, and includes a pair of inclined surfaces 23 and an intervening surface 24. The pair of inclined surfaces 23 have a C-shaped cross section formed along the pair of webs 63 so as to contact the upper surfaces of the pair of webs 63. The interposition surface 24 is interposed between the pair of inclined surfaces 23 of the upper abutment member 22 and abuts on the upper surface of the upper bottom 62. The interposition surface 24 includes an insertion hole 21 through which a bolt 31 is inserted at the center thereof. When the nut 32a is attached to the bolt 31 passed through the insertion hole 21, the bolt 31 is held in a state of protruding from the upper abutting member 22.

  The gantry 73 of this embodiment is a rectangular pipe and includes insertion holes 74a and 74b through which the bolts 31 are inserted through a pair of side surfaces. The mount 73 is placed on the upper contact member 22 from which the bolt 31 protrudes. Then, the washer 33 and the nut 32b are attached to the bolt 31 in this order, and the mount 73 is fixed. Here, the diameter of the insertion hole 74a below the gantry 73 is formed larger than the diameter of the nut 32a. As a result, the nut 32a is accommodated in the insertion hole 74a of the gantry 73, and the gantry 73 is stably placed on the upper member 22.

  In the fixture 4 of the present embodiment, since the upper contact member 22 and the folded plate 61 are in close contact with each other, the strength of the folded plate 61 at the portion that comes into contact with the upper contact member 22 can be improved. Therefore, the folded plate 61 is not likely to be deformed or damaged even if it receives a large pressing force from the lower contact member 10c.

  Further, as shown in FIG. 9, the lower contact member 10c may be formed with a regulating portion 15 that contacts the side surface of the bolt head on the back side of the interposed surface 12c. The restricting portion 15 is a groove formed along the side surface of the bolt head. As another aspect of the restricting portion 15, a concave portion having substantially the same shape as the outer shape of the bolt head, or a protrusion contacting the side surface of the bolt head may be used. The lower contact member 10c is formed by casting, for example, and the raw material thereof is, for example, aluminum.

  In the lower contact member 10c, the rotation of the bolt 31 is restricted when the side surface of the bolt head comes into contact with the restricting portion 15. Therefore, when the nuts 32a and 32b are screwed together, the joint around the bolt 31 can be prevented, and the construction can be reliably performed even from the roof.

  Further, in order to prevent rain leakage from the insertion hole 64 formed in the folded plate 61, a waterproof sheet disposed on the periphery of the through hole 13 of the folded plate 61 may be provided. As this waterproof sheet, a sheet typically made of butyl rubber is preferable.

  Although the fixing device and the fixing method of the present invention have been described above, the present invention can be implemented in variously modified, modified, and modified forms based on the knowledge of those skilled in the art without departing from the spirit of the present invention. These embodiments all belong to the scope of the present invention.

1 ・ 2 ・ 3 ・ 4 ... Fixing tool,
10, 10a, 10b, 10c ...
11, 11a, 11b, 11c ... Inclined surface,
12 ・ 12a ・ 12b ・ 12c ...
13 ... insertion hole,
14 ... Both ends of the lower contact member,
20 ・ 22 ...
21 ... insertion hole,
23 ... Inclined surface,
24 ... Intervening surface,
30 ... tightening member,
31 ... Bolt,
32 ・ 32a ・ 32b ... Nut,
33 ... washers,
34 ・ 35 ... Mounting part,
36 ... Female thread,
37 ... Hole for suspension member,
40 ・ 41 ... Hanging member,
50 ... stopper,
60 ... folded plate roof,
61 ... Folded plate,
62 ... The bottom of the folded plate,
63 ... folded web,
64 ... insertion hole
65 ... Bottom of folded plate
70 ・ 73 ...
71 ・ 74a ・ 74b ... Through hole
c ... Gap
L1 ... Width dimension, L2 ... Intermediate surface longitudinal dimension, L3 ... Inclined surface longitudinal dimension,

Claims (8)

A fixing tool for fixing a base placed on a surface member constituted by a folded plate having an upper base, a lower base, and a pair of webs extending from the upper base to the lower base,
A lower abutting member disposed on the lower surface side of the upper bottom and in contact with the pair of webs;
A fastening member for fastening the lower contact member and the folded plate;
Fixture with. The lower contact member is
A cross section is formed in a C-shape, a pair of inclined surfaces that contact the pair of webs,
An interposed surface interposed between the pair of inclined surfaces and facing the upper base;
The fixture according to claim 1, comprising:   The fixture according to claim 2, wherein an inclination angle of the inclined surface with respect to the upper bottom is gentler than an inclination angle of the web with respect to the upper bottom. The fastening member is
Bolts inserted in this order into the interposition surface of the lower contact member and the upper bottom;
A nut that can be screwed onto the bolt;
With
The fixing tool according to any one of claims 1 to 3, wherein a width of the lower contact member is smaller than a diameter of an insertion hole of the bolt formed in the upper bottom.   The fixture according to claim 4, wherein the lower contact member includes a restricting portion that abuts against a side surface of the head of the bolt on a back side of the interposition surface.   The fixture according to claim 4 or 5, further comprising a string-like hanging member attached to a screw tip of the bolt.   The fixture according to claim 6, further comprising a stopper that is connected to the bolt via the suspension member and has an outer shape that is larger than an insertion hole of the bolt formed on a mount. A fixing method for fixing a pedestal placed on a surface member composed of a folded plate having an upper base, a lower base, and a pair of webs extending from the upper base to the lower base,
Preparing the fixture according to any one of claims 4 to 7, and a preparation step of inserting the bolt through the lowering member;
A hole forming step for forming an insertion hole for the bolt in the upper bottom;
An arrangement step in which the lower contact member is disposed on the lower surface side of the upper bottom by letting the insertion hole of the bolt into place, the bolt is lifted, and the lower contact member is brought into contact with the pair of webs;
A tightening step of screwing the nut onto the bolt;
Including fixing method.

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