JP5968115B2 - Equipment fixing device - Google Patents

Description

  The present invention relates to an equipment fixing device for installing equipment such as a solar cell module, a solar water heater, and an outdoor unit of an air conditioner on a roof of a building.

  When installing equipment such as solar cell modules, solar water heaters, and outdoor units of air conditioners on the roof of a building, the fixed part that fixes these equipment is used for the weight of the equipment, wind pressure in the area where it is installed, and earthquakes. It is necessary to ensure the strength to withstand. In order to fix these facilities, a method of fixing a fixture (equipment fixing device) for fixing the facility on the roof in advance and fixing the facility on the fixing device is generally used.

  In order to secure a sufficient fixing strength, the fixing bracket is fixed to a roof structure such as a rafter through a roof base plate with wood screws, nails, bolts / nuts, and the like. However, in general, when the rafters are wood, the rafters are arranged at a predetermined interval, so that there is a problem that the fixed position of the facility is restricted according to the position of the rafters.

  In addition, when the rafter is metal, the plate thickness is often a thin plate of about 1 to 3 mm, so that sufficient strength cannot be secured by fixing with screws or the like, and the rafter shape may be complicated, There is a problem that it is difficult to fix the screw to the rafter itself.

  In addition, when the roofing material is a metal, there is a problem that the goby portion, which is a joint portion of the metal roofing material, is located on the rafter and the fixing bracket cannot be attached to the rafter. Equipment that has a relatively small installation area, such as an outdoor unit of an air conditioner, can be installed by adjusting the installation position because the number of fixing brackets is small. In the case of equipment installed in a wide area, the number of fixing brackets is large, and it is difficult to install by adjusting the installation position.

  In addition, if the fixing bracket is not fixed to the rafters, but fixed to a field plate laid on the entire roof surface, there is no restriction on the material and shape of the rafters, and the degree of freedom in fixing the equipment will be high. Since the thickness of the base plate is usually about 9 to 12 mm, there is a problem that sufficient strength cannot be secured.

  In order to solve such a problem, for example, in Patent Document 1, a bolt is passed through a bolt hole formed in a base plate, and the base plate is sandwiched between washers (one side washer and a large washer) attached to the bolt. Thus, an equipment fixing device that secures mounting strength and waterproofness is disclosed.

JP-A-8-312075

  However, in the equipment fixing device described in Patent Document 1, the one-side washer provided on the indoor side with respect to the base plate has an asymmetric shape, and the contact with the base plate is per one piece. Therefore, there has been a problem that sufficient mounting strength cannot be obtained by sandwiching the base plate, and the strength variation becomes large. In addition, since the diameter of the bolt shaft is smaller than that of the bolt hole formed in the base plate, there is a problem that the equipment fixing device is likely to rattle and the strength may be insufficient.

  The present invention has been made in view of the above, and the facility installed on the roof of the building is fixed to a building structure other than rafters, such as field boards, to ensure sufficient fixing strength. On the other hand, an object of the present invention is to obtain an equipment fixing device capable of improving the degree of freedom of the installation position of equipment.

  In order to solve the above-described problems and achieve the object, the present invention is provided on a cylindrical portion having a cylindrical shape in which a through hole is formed in the longitudinal direction, and on one end side along the longitudinal direction of the cylindrical portion. An overhanging portion projecting outward from the outer periphery of the tubular portion, a shaft portion inserted from the other end side of the tubular portion and formed longer than the tubular portion, and an outer diameter larger than the inner diameter of the tubular portion. A plurality of openings formed so as to extend along the longitudinal direction, and a bolt attached to a shaft portion of the bolt inserted into the cylinder portion. Is formed.

  According to the present invention, the equipment to be installed on the roof of the building is fixed to the structure of the structure building other than the rafter, such as a field plate, etc., and sufficient securing strength can be secured, and high waterproofness can be secured, There exists an effect that the installation fixing device which can improve the freedom degree of the installation position of an installation is obtained.

FIG. 1-1 is a perspective view illustrating an example of a roof structure to which the equipment fixing device according to the first embodiment of the present invention is attached. FIG. 1-2 is a side view of the roof structure shown in FIG. 1-1. FIG. 2-1 is a side view illustrating a schematic configuration of the equipment fixing device according to the first exemplary embodiment of the present invention. FIG. 2-2 is an arrow view along the line AA shown in FIG. FIG. 3A is a side view illustrating a schematic configuration of the cylindrical portion. FIG. 3-2 is an arrow view along the line BB shown in FIG. 3-1. FIG. 3-3 is a side view illustrating a schematic configuration of a cylindrical portion as another example. FIG. 4 is a side view showing a schematic configuration of the bolt. FIG. 5 is a cross-sectional view showing a state in which the equipment fixing device is temporarily fixed to the roof structure. FIG. 6A is a cross-sectional view illustrating the equipment fixing device in a state where the nut is tightened halfway. FIG. 6-2 is a cross-sectional view showing the equipment fixing device in a state where the nut is further tightened. FIG. 6-3 is an arrow view along the line CC shown in FIG. 6-2. 7-1 is sectional drawing which shows a mode that the installation fixture was attached to the roof structure by the installation fixing device. 7-2 is sectional drawing which shows a mode that the installation fixture was attached to the roof structure by the installation fixing device. FIG. 8 is a side view showing a modified example of the cylindrical portion. FIG. 9A is a side view of a modified example of the bolt. FIG. 9-2 is an arrow view along the line DD shown in FIG.

  Below, the equipment fixing device concerning an embodiment of the invention is explained in detail based on a drawing. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1-1 is a perspective view illustrating an example of a roof structure to which the equipment fixing device according to the first embodiment of the present invention is attached. FIG. 1-2 is a side view of the roof structure shown in FIG. 1-1. As shown in FIGS. 1-1 and 1-2, the roof structure was laid on one side of the rafter 2 having a rectangular cross section extending downwardly from the building ridge toward the eaves, and the rafter 2. A field plate 4, a sheet metal roofing material 5 wound on the field plate 4, and a waterproof layer 6 are provided. The roofing material 5 is fixed by driving nails into the rafter 2 via the field board 4. The material of the rafter 2 is, for example, wood or steel frame. On the upper surface of the roof structure, a goby portion 3 that is a joint portion of the roof material 5 is formed.

  FIG. 2-1 is a side view illustrating a schematic configuration of the equipment fixing device 1 according to the first exemplary embodiment of the present invention. FIG. 2-2 is an arrow view along the line AA shown in FIG. As illustrated in FIGS. 2A and 2B, the equipment fixing device 1 includes a tube portion 10, a support portion (overhang portion) 12, a bolt 13, a waterproof portion 14, a washer 15, and a nut 16.

  FIG. 3A is a side view illustrating a schematic configuration of the cylindrical portion 10. FIG. 3-2 is an arrow view along the line BB shown in FIG. 3-1. The cylinder part 10 is exhibiting the cylindrical shape in which the through-hole 10a was formed in the longitudinal direction. On one end side along the longitudinal direction of the tube portion 10, a support portion 12 that protrudes outward from the outer periphery of the tube portion 10 is provided.

  As shown in FIG. 3B, the support portion 12 has a cylindrical shape, and the outer diameter 121 of the overhang portion is larger than the outer diameter 103 of the tubular portion 10. The material of the cylindrical portion 10 is metal or resin, but is preferably metal in order to ensure sufficient mounting strength.

  The material of the support part 12 is metal, resin, or packing such as butyl having waterproofness. In addition, the support part 12 and the cylinder part 10 are firmly bonded, and have a structure that is not easily peeled off. In addition, when the support part 12 and the cylinder part 10 are comprised with the same material, the support part 12 and the cylinder part 10 may be integrally molded.

  A plurality of openings 10b are formed on the side surface of the cylindrical portion 10 so as to extend along the longitudinal direction. A predetermined interval is provided between the opening 10b and the support portion 12 on the side surface of the cylindrical portion 10 (hereinafter, a region between the opening 10b and the support portion 12 is also referred to as a surface portion 102). The predetermined interval is preferably substantially the same as the thickness of the roof base plate 4 to which the equipment fixing device 1 is attached.

  FIG. 3C is a side view illustrating a schematic configuration of the cylindrical portion 10 as another example. As illustrated in FIG. 3C, an external screw 10 c may be formed between the opening 10 b and the support portion 12. The outer diameter 104 including the thread of the outer screw 10 c is larger than the outer diameter 103 of the cylindrical portion 10.

  Moreover, the shape of the opening 10b should just be a shape extended along the longitudinal direction of the cylinder part 10, and may show the substantially rectangular shape as shown to FIGS. 3-1, and as shown to FIGS. 3-3. May have a substantially rhombus shape. Moreover, an elliptical shape may be sufficient.

  FIG. 4 is a side view showing a schematic configuration of the bolt 13. The bolt 13 has a head portion 13a and a shaft portion 13b. The outer diameter 111 of the head portion 13 a is formed larger than the inner diameter 110 of the through hole 10 a of the cylindrical portion 10. The bolt 13 is inserted into the through hole 10 a from the other end side of the cylindrical portion 10. The length of the shaft portion 13 b is longer than the length of the tube portion 10, and the tip of the shaft portion 13 b is exposed from one end side of the tube portion 10. A waterproof part 14 and a washer 15 are fitted at the tip of the shaft part 13b exposed from one end side of the cylindrical part 10, and a nut 16 is further screwed.

  Next, a procedure for fixing the equipment fixing device 1 to the roof structure will be described. FIG. 5 is a cross-sectional view showing a state in which the equipment fixing device 1 is temporarily fixed to the roof structure. In addition, in FIG. 5, the roof structure is shown as sectional drawing, and the installation fixing device 1 is shown as a side view. First, a lower hole 7 that penetrates the roof material 5, the field plate 4, and the waterproof layer 6 is formed in the roof structure, and the equipment fixing device 1 is inserted into the lower hole 7 from the other end side of the cylindrical portion 10.

  In the roof structure shown in FIG. 1, the roof material 5 is exemplified as a metal, but it may be a roof material such as a slate or asphalt single, or after the roof tile is removed. There may be no roofing material.

  Since the diameter 701 of the lower hole 7 is smaller than the outer diameter 121 of the support portion 12, the support portion 12 can be prevented from being caught and the equipment fixing device 1 from falling off to the opposite side. As illustrated in FIG. 3A, when the external thread 10 c is not formed on the surface portion 102 of the cylindrical portion 10, the diameter 701 of the lower hole 7 is substantially the same as the outer diameter 103 of the cylindrical portion 10. It is preferable to enlarge it. Further, as illustrated in FIG. 3C, when the external thread 10 c is formed on the surface portion 102 of the cylindrical portion 10, the diameter 701 of the lower hole 7 is substantially the same as the outer diameter 103 of the cylindrical portion 10. It is preferable to make it smaller.

  When the external thread 10 c is formed on the surface portion 102, the tube portion 10 is inserted into the field plate 4 while tapping, so that the tube portion 10 is in close contact with the field plate 4 and the roof structure of the bolt 13 is The effect of improving the verticality and improving the horizontal fixing strength and waterproofness can be expected. Further, a sealing material may be provided on the outer peripheral portion of the surface portion 102. Also in this case, the adhesion with the base plate 4 is improved.

  Next, the nut 16 is tightened in the fastening direction. FIG. 6A is a cross-sectional view showing the equipment fixing device 1 in a state where the nut 16 is tightened halfway. In addition, in FIG. 6-1, the roof structure is shown as sectional drawing, and the installation fixing device 1 is shown as a side view. By tightening the nut 16 in the fastening direction, as shown in FIG. 6A, the region where the head 13a of the bolt 13 pushes up the other end of the tube 10 and is sandwiched between the openings 10b of the tube 10 is the center. Deforms outward in the vicinity.

  FIG. 6B is a cross-sectional view showing the equipment fixing device 1 in a state where the nut 16 is further tightened. FIG. 6-3 is an arrow view along the line CC shown in FIG. 6-2. In addition, in FIG. 6-2, the roof structure is shown as sectional drawing, and the installation fixing device 1 is shown as a side view. When the nut 16 is further tightened from the state shown in FIG. 6A, as shown in FIG. 6B, the deformed portion of the cylindrical portion 10 comes into contact with the base plate 4, and the base plate 4 is formed by the washer 15 and the cylindrical portion 10. It will be in the form of sandwiching.

  By fastening the nut 16, the waterproof part 14 is crushed between the washer 15 and the base plate 4, and is in close contact with the roof material 5, the base plate 4, and the gaps between the respective members, ensuring high waterproofness. can do. Moreover, the deformed part of the cylinder part 10 can be made to contact the field board 4 symmetrically by adjusting the number and position of the opening 10b. Thereby, even when a wind pressure load or the like is applied to the equipment fixing device 1, it is possible to suppress the contact between the pieces and secure a sufficient strength with little variation.

  For example, the deformed portion of the cylindrical portion can be brought into contact with the base plate 4 symmetrically by making the opening widths of the plurality of openings 10b substantially equal and the intervals between the openings 10b substantially equal. Further, if at least three openings 10b are formed, there are three or more contact points between the deformed portion of the cylindrical portion 10 and the field plate 4, so that the equipment fixing device 1 is more stably fixed to the roof structure. be able to.

  Next, a state in which the equipment fixing bracket for fixing the equipment on the roof is attached to the roof structure by the equipment fixing device 1 is shown in the drawings. FIG. 7A is a cross-sectional view illustrating a state in which the equipment fixing bracket 20 is attached to the roof structure by the equipment fixing device 1. As illustrated in FIG. 7A, the equipment fixing bracket 20 may be fastened together under the waterproof portion 14 when the equipment fixing device 1 is attached. In this case, the waterproof property can be further improved by adding a waterproof layer 201 such as butyl to the back surface of the equipment fixing bracket 20.

  FIG. 7-2 is a cross-sectional view illustrating a state in which the equipment fixing bracket 11 is attached to the roof structure by the equipment fixing device 1. As shown in FIG. 7-2, the equipment fixing bracket 11 may be attached to the roof structure by fitting a nut 17 or the like into the bolt 13 as a separate structure after the equipment fixing device 1 is attached.

  As described above, since the equipment fixing device 1 fixes the field plate 4 by sandwiching the deformed portion of the cylindrical portion 10 with the washer 15 or the like, the equipment is firmly fixed on the roof without the rafter 2. Can do. Here, as shown in FIG. 1-2, it is difficult to use a fixing device that is fixed via the rafter 2 because the goby 3 becomes an obstacle to the rafter 2 that has overlapped with the goby 3. There is a case. For this reason, when the equipment is fixed via the rafter 2, the arrangement of the equipment may be limited. On the other hand, in the equipment fixing device 1 according to the present embodiment, the equipment can be fixed without using the rafter 2, so that the degree of freedom of the installation position of the equipment can be improved.

  FIG. 8 is a side view showing a modified example of the cylindrical portion 10. FIG. 9A is a side view illustrating a modified example of the bolt 13. FIG. 9-2 is an arrow view along the line DD shown in FIG. A plurality of holes 105 are formed in the surface portion 102 of the cylindrical portion 10. A through hole 131 is formed at the center of the bolt 13 and a plurality of holes 132 are formed at the side surface. In this case, after attaching the equipment fixing device 1, by injecting a sealing material such as liquid or gel into the through hole 131, the sealing wraps around the cross section and the back surface of the base plate 4 through the holes 105 and 132. It becomes possible to improve waterproofness.

  As described above, the equipment fixing device according to the present invention is useful as a device for installing equipment such as a solar cell module, a solar water heater, and an outdoor unit of an air conditioner on the roof of a building.

DESCRIPTION OF SYMBOLS 1 Equipment fixing device 2 Rafter 3 Seam part 4 Field plate 5 Roof material 6 Waterproof layer 7 Bottom hole 10 Tube part 10a Through hole 10b Opening 10c External screw 11 Equipment fixing bracket 12 Support part (overhang part)
13 Bolt 13a Head 13b Shaft part 14 Waterproof part 15 Washer 16 Nut 17 Nut 20 Equipment fixing bracket 102 Face part 103 Outer diameter 104 Outer diameter 105 Hole 110 Inner diameter 111 Outer diameter 121 Outer diameter 131 Through hole 132 Hole 201 Waterproof layer 701 Diameter

Claims (6)

A cylindrical portion having a cylindrical shape with through holes formed in the longitudinal direction;
An overhang portion provided on one end side along the longitudinal direction of the tube portion and projecting outward from the outer periphery of the tube portion;
A bolt having a shaft portion inserted from the other end side of the tube portion and formed longer than the tube portion, and a head portion formed at an outer diameter larger than the inner diameter of the tube portion;
A nut attached to a shaft portion of the bolt in a state of being inserted into the cylinder portion;
A waterproof portion provided between the overhang portion and the nut, through which a shaft portion of the bolt passes, and having a larger outer diameter than the overhang portion,
In the shaft portion of the bolt, a vertical hole is formed from the opposite side of the head,
A bolt side lateral hole communicating with the vertical hole is formed on the side surface of the shaft portion of the bolt,
The cylindrical portion is formed with a plurality of openings formed so as to extend along the longitudinal direction ,
A facility fixing device characterized in that a cylinder side lateral hole communicating with the through hole is formed between the projecting part and the opening in the side surface of the cylinder part .   The equipment fixing device according to claim 1, wherein intervals between the openings formed in the cylindrical portion are substantially equal.   A predetermined interval is provided between the overhanging portion and the opening, and an external screw is formed between the overhanging portion and the opening of the tubular portion. The equipment fixing device according to claim 1 or 2. The equipment fixing device according to any one of claims 1 to 3 , wherein the shape of the opening is a substantially rhombus. The equipment fixing device according to any one of claims 1 to 3 , wherein the shape of the opening is substantially rectangular. A cylindrical portion having a cylindrical shape with through holes formed in the longitudinal direction;
An overhang portion provided on one end side along the longitudinal direction of the tube portion and projecting outward from the outer periphery of the tube portion;
A bolt having a shaft portion inserted from the other end side of the tube portion and formed longer than the tube portion, and a head portion formed at an outer diameter larger than the inner diameter of the tube portion;
A nut attached to a shaft portion of the bolt in a state of being inserted into the cylinder portion,
The cylindrical portion is formed with a plurality of openings formed so as to extend along the longitudinal direction,
In the shaft portion of the bolt, a vertical hole is formed from the opposite side of the head,
A bolt side lateral hole communicating with the vertical hole is formed on the side surface of the shaft portion of the bolt,
A facility fixing device characterized in that a cylinder side lateral hole communicating with the through hole is formed between the projecting part and the opening in the side surface of the cylinder part.

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