JP6429006B2 - Drill screw, solar cell module installation method using the drill screw, and solar power generation apparatus - Google Patents

Description

  The present invention relates to a drill screw, and more particularly, to a drill screw for installing a solar cell module, a method for installing a solar cell module using the drill screw, and a solar power generation device.

  When attaching a siding board to a mortar wall or the like, a screw is generally used. First, a concrete drill is used to make a pilot hole in the mortar wall, and a screw is attached to the pilot hole. Drill screw equipped with a cutting edge at the tip, a pilot part on the base end side of the cutting edge, a screw part on the base end side of the pilot part, and a screw head on the base end side of the screw part to eliminate the need for a pilot hole Is used (see, for example, Patent Document 1).

JP 2001-304218 A

  The drill screw is also used when attaching a solar cell module to a decorative slate tile roof. When a drill screw is screwed into a decorative slate tile roof, the decorative slate tile may be lifted by rotation of the threaded portion, which may cause cracks or cracks. In addition, the decorative slate tile roof is generally installed above the base plate with a space. When a drill screw is screwed into such a decorative slate tile roof, torque control cannot be performed and the drill screw continues to enter, so that the decorative slate tile roof may be pressed against the base plate.

  This invention is made | formed in view of such a condition, The objective is to provide the drill screw which can reduce the burden of the part screwed.

In order to solve the above-described problem, a drill screw according to an aspect of the present invention includes a drill portion provided on a distal end side, a first pilot portion provided on a proximal end side of the drill portion, and a base of the first pilot portion. A screw part provided on the end side, a second pilot part provided on the base end side of the screw part, a screw head provided on the base end side of the second pilot part, a first pilot part and a screw part A groove portion having an outer diameter smaller than the outer diameter of the first pilot portion, a first projecting portion disposed at a boundary between the first pilot portion and the groove portion, a groove portion and a screw portion, 2nd protrusion part arrange | positioned in the boundary of this. An annular water stop member is attached to the groove, and the first protrusion has a shape in which the outer diameter portion of the first pilot portion protrudes more proximally than the joint portion between the first pilot portion and the groove. And the 2nd projection part has the shape where the outside diameter part of a screw part protrudes to the tip side rather than the joined part of a screw part and a slot .

Another aspect of the present invention is a method for installing a solar cell module. The method includes placing a fixture on the roof, and rotating the drill screw from the hole provided in the fixture placed on the roof toward the roof to attach the drill screw to the roof. A step of fixing the fixture on the top, and a step of attaching the solar cell module to the fixture fixed on the roof. In the step of fixing the fixture on the roof, the drill portion provided on the distal end side, the first pilot portion provided on the proximal end side of the drill portion, and the screw provided on the proximal end side of the first pilot portion Part, a second pilot part provided on the base end side of the screw part, a screw head provided on the base end side of the second pilot part, and between the first pilot part and the screw part, And a groove portion having an outer diameter smaller than the outer diameter of the first pilot portion, a first protrusion portion disposed at the boundary between the first pilot portion and the groove portion, and a first portion disposed at the boundary between the groove portion and the screw portion. A drill screw having two protrusions, wherein an annular water-stop member is attached to the groove, and the first protrusion has an outer diameter portion of the first pilot part, which joins the first pilot part and the groove. It has a shape that protrudes to the base end side from the portion, and the second protrusion has an outer diameter portion of the screw portion, Using a drill screw having a shape protruding to the distal end side than the joint portion between the Flip portion and the groove.

Yet another embodiment of the present invention is a solar power generation device. The apparatus includes a fixture that can be placed on the roof, a drill screw that is attached to the roof via a hole provided in the fixture, and a solar cell module that is attached to the fixture. The drill screw includes a drill portion provided on a distal end side, a first pilot portion provided on a proximal end side of the drill portion, a screw portion provided on a proximal end side of the first pilot portion, and a base of the screw portion A second pilot part provided on the end side, a screw head provided on the base end side of the second pilot part , and provided between the first pilot part and the screw part, and outside the first pilot part. A groove portion having an outer diameter smaller than the diameter; a first protrusion portion disposed at a boundary between the first pilot portion and the groove portion; and a second protrusion portion disposed at a boundary between the groove portion and the screw portion. An annular water stop member is attached to the groove, and the first protrusion has a shape in which the outer diameter portion of the first pilot portion protrudes more proximally than the joint portion between the first pilot portion and the groove. And the 2nd projection part has the shape where the outside diameter part of a screw part protrudes to the tip side rather than the joined part of a screw part and a slot .

  ADVANTAGE OF THE INVENTION According to this invention, the drill screw which can reduce the burden of the part screwed in can be provided.

FIGS. 1A to 1B are views showing the configuration of a drill screw according to Embodiment 1 of the present invention. It is a perspective view which shows the structure of the solar cell module which concerns on Example 1 of this invention. Fig.3 (a)-(c) is a figure which shows the structure of a solar cell module. 4A to 4D are cross-sectional views illustrating the configuration of the solar power generation device of FIG. It is a perspective view which shows the structure of the fixing tool of Fig.4 (a)-(c). It is a perspective view which shows the structure of the wedge of FIG.4 (c), (d). It is a perspective view which shows the 1st step at the time of installing the solar cell module of FIG. 2 on a decorative slate tile roof. It is a perspective view from the eaves side which shows the 2nd stage at the time of installing the solar cell module of FIG. 2 on a makeup | decoration slate tile roof. It is a perspective view from the ridge side which shows the 2nd stage at the time of installing the solar cell module of FIG. 2 on a makeup | decoration slate tile roof. It is a perspective view from the eaves side which shows the 3rd stage at the time of installing the solar cell module of FIG. 2 on a makeup | decoration slate tile roof. It is a perspective view from the ridge side which shows the 3rd step at the time of installing the solar cell module of FIG. 2 on a makeup | decoration slate tile roof. It is a side view which shows the structure of the drill screw which concerns on Example 2 of this invention. It is a side view which shows the structure of the drill screw which concerns on Example 3 of this invention. FIGS. 14A to 14C are side views showing the configuration of the drill screw according to the fourth embodiment of the present invention. It is a side view which shows the structure of the drill screw which concerns on Example 5 of this invention.

(Example 1)
An outline will be given before a specific description of the embodiment. A present Example is related with the drill screw used when installing a solar cell module in a decorative slate tile roof. As described above, the decorative slate tile roof is spaced apart above the base plate. When a solar cell module is installed on such a decorative slate tile roof, a fixture dedicated to the solar cell module is fixed to the decorative slate tile roof with a drill screw. Specifically, a drill screw penetrates the decorative slate tile roof and is screwed into the field board. When such a drill screw is passed through the decorative slate tile roof, there is a possibility that the decorative slate tile may be lifted by rotation of the thread portion of the drill screw. Moreover, since the base plate into which the drill screw is screwed is wood, torque management by the electric drill is impossible. Therefore, if the drill screw is continuously rotated by the electric drill, the drill screw will enter the base plate as much as possible. As a result, the decorative slate tile roof may be pressed against the base plate.

  In order to cope with this, in the drill screw according to the present embodiment, a pilot portion is provided following the drill portion at the tip. Since no screw is formed in the pilot portion, occurrence of a situation where the decorative slate tile roof is lifted is suppressed. In the drill screw according to the present embodiment, another pilot portion is also provided on the tip side of the screw head. Since there is no screw portion in another pilot portion, another pilot portion does not continue to enter the base plate. Therefore, the occurrence of a situation where the drill screw enters the base plate as much as possible is suppressed.

  1A to 1B show the configuration of a drill screw 200 according to Embodiment 1 of the present invention. FIG. 1A is a top view from the base end side of the drill screw 200, and FIG. 1B is a side view of the drill screw 200. The drill screw 200 includes a drill portion 202, a first pilot portion 204, a screw portion 206, a second pilot portion 208, and a screw head 210. The screw portion 206 includes a shaft portion 214 and a screw thread 216, and the screw head portion 210 includes a cross groove portion 212.

  The drill part 202 is provided on the distal end side and has a cutting blade. In addition, the shape of the drill part 202 is not limited to the shape shown in figure, What is necessary is just a shape which can cut a target object. The drill part 202 is formed, for example with stainless steel. Further, the maximum outer diameter Φ1 of the drill screw 200 is, for example, 4.25 mm. The first pilot portion 204 is provided adjacent to the proximal end side of the drill portion 202. The proximal end side is the opposite side of the distal end side, and is the partial side where the screw head 210 is provided. The first pilot portion 204 has a cylindrical shape, and its outer diameter Φ1 is set to 4.25 mm like the drill portion 202. The length L1 between the drill part 202 and the first pilot part 204 is 20.0 mm.

  The threaded portion 206 is provided adjacent to the proximal end side of the first pilot portion 204. In the screw portion 206, the shaft portion 214 and the screw thread 216 are formed by rolling the same material diameter as that of the first pilot portion 204. Further, the outer diameter Φ2 of the shaft portion 214 is smaller than the outer diameter Φ1 of the first pilot portion 204, and the outer diameter Φ3 of the screw thread 216 is configured to be larger than the outer diameter Φ1 of the first pilot portion 204. As an example, the outer diameter Φ3 of the screw thread 216 is set to 5.2 mm, and the length L2 of the screw portion 206 is set to 22.0 mm. The second pilot portion 208 is provided adjacent to the proximal end side of the screw portion 206. Similar to the first pilot portion 204, the second pilot portion 208 has a cylindrical shape with an outer diameter Φ1. Further, the length L3 of the second pilot unit 208 is set to 18.0 mm.

  The screw head 210 is connected to the proximal end side of the second pilot portion 208. The screw head 210 has a disk-shaped flange disposed on the second pilot section 208 side, and a hexagonal prism-shaped hexagon head disposed on the proximal end side of the flange. The screw head 210 is engraved with a cross groove 212 as shown in FIG. As an example, the outer diameter Φ4 of the screw head 210 is 11.0 mm, and the length L4 of the screw head 210 is 5.5 mm. Note that the shapes of the screw head 210 and the cross groove 212 are not limited to the shapes shown in the drawings, and may be other shapes.

  FIG. 2 is a perspective view showing the configuration of the photovoltaic power generation apparatus 1000 according to Embodiment 1 of the present invention. As shown in FIG. 1, a rectangular coordinate system composed of an x-axis, a y-axis, and a z-axis is defined. The x axis and the y axis are orthogonal to each other in the plane of the decorative slate tile roof 12. In particular, the x-axis extends from the ridge to the eave and the y-axis extends parallel to the ridge or eave. Since the z-axis is perpendicular to the x-axis and the y-axis, it is perpendicular to the plane of the decorative slate tile roof 12. The decorative slate tile roof 12 is inclined along the x-axis, that is, down from the ridge to the eaves. A plurality of decorative slate tiles are laid on the decorative slate tile roof 12. Here, one piece of decorative slate roof tile is composed of, for example, a width of 910 mm and a length of 182 mm. In FIG. 1, as an example, the first solar cell module 10a, the second solar cell module 10b, the third solar cell module 10c, and the fourth solar cell module 10d included in the photovoltaic power generation apparatus 1000 are on the decorative slate tile roof 12. Is installed.

  The first solar cell module 10a and the second solar cell module 10b correspond to the eaves-side solar cell module 10, and the third solar cell module 10c and the fourth solar cell module 10d correspond to the ridge-side solar cell module 10. To do. The solar cell module 10 is, for example, configured with a width of 1365 mm and a length of 542 mm, so that the width corresponds to 1.5 times the size of the decorative slate tile and the length corresponds to three times the size of the decorative slate tile. Therefore, if any one of the four corners of the plurality of solar cell modules 10 is adjusted to the corner of the decorative slate roof tile, regularity is generated in the relationship between the joint of the solar cell module 10 and the joint of the decorative slate roof tile. For this reason, a decrease in design properties is suppressed.

  FIGS. 3A to 3C show the configuration of the solar cell module 10. FIG. 3A is a top view of the solar cell module 10. The solar cell module 10 includes a ridge side frame 22, an eaves side frame 24, a first short side frame 34a, a second short side frame 34b, and a solar cell panel 110, which are collectively referred to as a short side frame 34. The ridge side frame 22, the eaves side frame 24, the first short side frame 34a, and the second short side frame 34b are formed of, for example, aluminum, iron, stainless steel, resin, or the like, and are formed by extrusion molding or the like. The ridge side frame 22 or the eaves side frame 24 and the short side frame 34 are connected to each other at the end points in the longitudinal direction, thereby protecting the solar cell panel 110.

  When viewed from the z-axis direction, the solar cell panel 110 is surrounded by the ridge side long side portion 14, the eaves side long side portion 16, the first short side portion 18, and the second short side portion 20, and is substantially rectangular. Formed. In solar cell panel 110, a plurality of solar cells 112 are electrically connected to each other by a wiring material made of a conductive material such as copper foil. Further, the plurality of solar cells 112 are light-transmitting materials such as EVA (ethylene vinyl acetate) having excellent weather resistance and moisture resistance between the light-transmitting front surface member and the back surface member made of a weather-resistant film. It is sealed with a sealing material having properties. Moreover, the several solar cell 112 connected in series by the wiring material comprises the string which is 1 unit unit. Each string is connected by a connection wiring. Furthermore, a lead wire (not shown) for drawing the output from the solar cells 112 to the outside is connected. For example, a crystalline semiconductor composed of single crystal silicon or polycrystalline silicon is used for the solar cell 112, but the present invention is not limited to this, and other types of solar cells may be used. A terminal box (not shown) is provided on the back surface of the solar cell panel 110.

  FIG. 3B is a cross-sectional view in the A-A ′ direction of the solar cell module 10 of FIG. This can also be said to be a cross-sectional view along the x-axis. The eaves side holding part 28 in the eaves side frame 24 and the ridge side holding part 26 in the ridge side frame 22 have a concave cross section that opens to the solar cell panel 110 side. The ridge side long side portion 14 of the solar cell panel 110 is fitted into the ridge side holding portion 26, and the eave side long side portion 16 of the solar cell panel 110 is fitted into the eave side holding portion 28. A main body 38 is provided below the eaves side holding unit 28 and the ridge side holding unit 26. The eaves-side engaged portion 32 is provided below the main body portion 38 of the eaves side frame 24, and the ridge-side engaged portion 30 is provided below the main body portion 38 of the ridge-side frame 22. The eaves-side engaged portion 32 and the ridge-side engaged portion 30 have a concave cross section that opens to the positive side of the x-axis.

  FIG. 3C is a cross-sectional view of the short side frame 34. The short side frame 34 includes a short side holding part 36, and the first short side part 18 or the second short side part 20 of the solar cell panel 110 (not shown) is fitted into the short side holding part 36. In addition, a main body portion 38 is provided below the short side holding portion 36.

  4A to 4D are cross-sectional views illustrating the configuration of the solar power generation device 1000. FIG. FIG. 4A is a cross-sectional view taken along the x-axis of the first solar cell module 10a and the third solar cell module 10c shown in FIG. The eaves side frame 24 attached to the first solar cell module 10a is engaged with the first fixture 40a, and the ridge side frame 22 attached to the first solar cell module 10a is engaged with the fifth fixture 40e. Is done. The eaves side frame 24 attached to the third solar cell module 10c is engaged with the fifth fixture 40e, and the ridge side frame 22 attached to the third solar cell module 10c is attached to the first uppermost fixture 42a. Engaged. Further, the first fixing tool 40 a, the fifth fixing tool 40 e, and the first uppermost stage fixing tool 42 a are fixed to the decorative slate tile roof 12 by the drill screw 200.

  Here, the configuration of the fixture 40 will be described first with reference to FIG. FIG. 5 is a perspective view showing the configuration of the fixture 40. In the y-axis direction, the third lower side surface 50c and the fourth lower side surface 50d are arranged so as to sandwich the lower step surface 52, and the first lower side surface 50a and the second lower side surface 50b are arranged so as to sandwich the upper step surface 54. The The first lower side surface 50a is provided with a first fixing hole 56a and a second fixing hole 56b, and the second lower side surface 50b is provided with a third fixing hole 56c and a fourth fixing hole 56d (not shown). It is done. The drill screw 200 described above can be passed through each of the first fixing hole 56a, the second fixing hole 56b, the third fixing hole 56c, and the fourth fixing hole 56d.

  The lower step surface 52 is provided to protrude from the third lower side surface 50c and the fourth lower side surface 50d, and the upper step surface 54 is provided to protrude from the first lower side surface 50a and the second lower side surface 50b. The lower step surface 52 and the upper step surface 54 have a step shape in the x-axis direction. The first eaves side engaging hook 58a and the second eaves side engaging hook 58b are erected on the lower step surface 52 so as to be separated from each other. The tips of the first eaves side engaging hook 58a and the second eaves side engaging hook 58b are bent toward the negative direction side of the x axis. The first eaves side engagement hook 58a and the second eaves side engagement hook 58b engage the ridge side engaged portion 30 of the eaves side solar cell module 10. The first ridge side engagement hook 60a and the second ridge side engagement hook 60b are erected on the upper stage surface 54 so as to be separated from each other. Similarly to the first eaves side engagement hook 58a and the second eaves side engagement hook 58b, the first building side engagement hook 60a and the second building side engagement hook 60b are also bent toward the negative direction side of the x axis. Yes. The first ridge side engagement hook 60a and the second ridge side engagement hook 60b engage the eaves side engaged portion 32 of the solar cell module 10 on the ridge side.

  The first fitting hole 62a is provided on the side surface between the upper step surface 54 and the first lower side surface 50a so as to be elongated in the z-axis direction, and the second fitting hole 62b is formed with the upper step surface 54 and the second lower surface 50a. It is provided on the side surface between the side surfaces 50b in a shape that is elongated in the z-axis direction. A wedge 76 described later is fitted into the first fitting hole 62a and the second fitting hole 62b. This is to prevent the eaves-side solar cell module 10 engaged with the first eaves side engaging hook 58a and the second eaves side engaging hook 58b from being detached.

  Returning to FIG. FIG. 4B is a cross-sectional view of the vicinity of the first fixture 40a shown in FIG. The decorative slate tile roof 12 is disposed away from the base plate 90 in the positive direction of the z axis, and the first fixture 40 a is placed on the decorative slate tile roof 12. The drill screw 200 is screwed in the negative direction of the z-axis through the first fixing hole 56a and the second fixing hole 56b provided in the first fixing tool 40a. Here, the drill part 202 and the first pilot part 204 of the drill screw 200 penetrate the decorative slate tile roof 12 and the field plate 90 and reach the lower part of the field plate 90. Since the shaft portion 214 and the screw thread 216 are not formed in the first pilot portion 204, even if the first pilot portion 204 rotates, the force in the positive direction of the z-axis does not work, and the decorative slate roof tile is lifted up. Occurrence of the situation is suppressed. Further, the screw portion 206 of the drill screw 200 is fixed in the field plate 90. As a result, the second pilot portion 208 of the drill screw 200 is disposed in the space between the decorative slate tile roof 12 and the base plate 90, the decorative slate tile roof 12.

  As shown in FIG. 4B, when the screw portion 206 is disposed in the base plate 90 and the drill screw 200 is screwed with an electric drill, the portion that should next enter the base plate 90 is the second pilot portion 208. become. On the other hand, since the shaft portion 214 and the screw thread 216 are not formed in the second pilot portion 208, the second pilot portion 208 is not screwed so as to enter the field plate 90. As a result, the drill screw 200 does not advance in the negative direction of the z-axis from the state shown in FIG. In order to realize the fixation of the drill screw 200 shown in FIG. 4B, the length of the screw portion 206 shown in FIG. 1 is designed so as to be substantially the same value as the thickness a of the base plate 90. The Further, the length of the second pilot portion 208 shown in FIG. 1 is designed so as to be approximately the same value as the distance b from the upper surface of the decorative slate tile roof 12 to the upper surface of the base plate 90.

  In a state where the first fixture 40a is attached to the decorative slate tile roof 12, the eaves-side engaged portion 32 slides in the positive direction of the x-axis, and the eaves-side engaged portion 32 is in the first fixture 40a. It is inserted in the ridge side engagement hook 60, and both engage. By this engagement, the first solar cell module 10a is attached to the first fixture 40a. On the other hand, the engaged portion of the eaves cover 44 is engaged with the eaves side engaging hook 58 in the first fixture 40 a instead of the ridge side engaged portion 30.

  FIG. 4C is a cross-sectional view of the vicinity of the fifth fixture 40e shown in FIG. The fifth fixture 40e is attached to the decorative slate tile roof 12 in the same manner as the first fixture 40a. The ridge-side engaged portion 30 of the first solar cell module 10a slides in the positive direction of the x axis, and the ridge-side engaged portion 30 is inserted into the eaves-side engagement hook 58 in the fifth fixture 40e, Both engage. By this engagement, the first solar cell module 10a is attached to the fifth fixture 40e. Furthermore, the eaves-side engaged portion 32 of the third solar cell module 10c slides in the positive direction of the x axis, and the eaves-side engaged portion 32 is inserted into the ridge-side engaging hook 60 in the fifth fixture 40e. Both engage. By this engagement, the third solar cell module 10c is attached to the fifth fixture 40e.

  When the first solar cell module 10a moves in the negative direction of the x axis in a state where the first solar cell module 10a is attached to the fifth fixture 40e, the ridge-side engaged portion 30 becomes the eaves-side engagement hook 58. Get out of it. In order to prevent the first solar cell module a engaged with the eaves side engagement hook 58 from being detached, a wedge 76 is fitted into the fitting hole 62 of the fifth fixture 40e.

  Here, the configuration of the wedge 76 will be described with reference to FIG. FIG. 6 is a perspective view showing the configuration of the wedge 76. For the wedge 76, for example, stainless spring steel (SUS spring steel) is used. Since stainless spring steel has a stronger strength than aluminum, it is possible to reduce the thickness while securing the strength as compared with the case of molding with aluminum. This can be said to have a large spring property while being molded with a thin material. Further, the wedge 76 has a bonnet structure in order to match the thickness of the wedge 76 formed of a thin material with the fitting hole 62. The wedge 76 is not limited to SUS spring steel, and may be formed of copper or iron. The first fitting claws 78a and the second fitting claws 78b project inwardly at the lower part of the wedge 76 and at both ends. The first fitting claw 78a is fitted into the first fitting hole 62a of the fixture 40, and the second fitting claw 78b is fitted into the second fitting hole 62b of the fixture 40, whereby a wedge is formed. 76 is attached to the fixture 40. The outer claw 80 protrudes outward from the upper left portion of the wedge 76, and the claw receiving portion 82 is provided outward from the lower right portion of the wedge 76.

  Returning to FIG. FIG. 4D is a cross-sectional view of the vicinity of the first uppermost fixture 42a shown in FIG. The uppermost stage fixture 42 has the same configuration as that of the fixture 40, but does not include the first ridge side engagement hook 60a and the second ridge side engagement hook 60b. Further, the lower side surface 66, the lower step surface 68, and the eaves side engagement hook 70 in the uppermost stage fixture 42 correspond to the lower side surface 50, the lower step surface 52, and the eaves side engagement hook 58 of the fixture 40, respectively. The first uppermost fixture 42a is attached to the decorative slate tile roof 12 in the same manner as the first fixture 40a and the fifth fixture 40e. The ridge-side engaged portion 30 of the third solar cell module 10c slides in the positive direction of the x-axis, and the ridge-side engaged portion 30 is inserted into the eaves-side engagement hook 70 in the first uppermost stage fixture 42a. Both engage. By this engagement, the third solar cell module 10c is attached to the first uppermost fixture 42a.

  As described above, the photovoltaic power generation apparatus 1000 includes the fixture 40, the uppermost fixture 42, the drill screw 200, and the solar cell module 10. The fixing tool 40 and the uppermost stage fixing tool 42 can be arranged on the decorative slate tile roof 12, and the drill screw 200 is provided through the holes provided in the fixing tool 40 and the uppermost stage fixing tool 42. Attached to. The solar cell module 10 is attached to the fixture 40 and the uppermost fixture 42.

  Next, a method for installing the solar cell module 10 on the decorative slate tile roof 12 will be described. FIG. 7 is a perspective view showing a first stage when the solar cell module 10 is installed on the decorative slate tile roof 12. The installer performs an operation of drawing a reference line necessary for the construction and taking a dimension while checking the slate tile roof 12 in the sum, that is, checking the horizontal, vertical, and heel directions. In particular, the position where the fixing tool 40 should be fixed is determined along the boundary line of the decorative slate roof tile. Thereafter, as shown in FIG. 7, the first fixture 40 a to the fourth fixture 40 d are arranged on the decorative slate tile roof 12 while being spaced apart from each other in the y-axis direction. Following this, by rotating the drill screw 200 from the hole provided in the fixture 40 arranged on the decorative slate tile roof 12 toward the roof, and attaching the drill screw 200 to the decorative slate tile roof 12, A fixture 40 is fixed on the decorative slate tile roof 12.

  FIG. 8 is a perspective view from the eaves side showing a second stage when the solar cell module 10 is installed on the decorative slate tile roof 12. FIG. 9 is a perspective view from the ridge side showing the second stage when the solar cell module 10 is installed on the decorative slate tile roof 12. With respect to the first ridge side engagement hook 60a and the second ridge side engagement hook 60b erected on each of the first fixture 40a and the second fixture 40b fixed to the decorative slate tile roof 12, The eaves side frame 24 of 1 solar cell module 10a is engaged. Thereafter, the first eaves cover 44a is engaged with the first eaves side engaging hook 58a and the second eaves side engaging hook 58b that are erected on the first fixing tool 40a and the second fixing tool 40b, respectively. Combined. Further, the same installation is performed on the second solar cell module 10b, the second eaves cover 44b, the third fixture 40c, and the fourth fixture 40d.

  A first eaves side engaging hook 58a and a second eaves side engaging hook that are provided upright on each of the fifth fixing tool 40e and the sixth fixing tool 40f with respect to the ridge side frame 22 of the first solar cell module 10a. 58b is engaged. Thereby, the position which should fix the 5th fixing tool 40e and the 6th fixing tool 40f to the decorative slate tile roof 12 is determined. That is, the position where the fifth fixture 40e and the sixth fixture 40f should be fixed is not determined by marking out, but is measured by using the first solar cell module 10a. Further, the fifth fixture 40e and the sixth fixture 40f are fixed at the determined positions. Thereafter, the wedge 76 is fitted to the fifth fixture 40e and the sixth fixture 40f. In this way, the first solar cell module 10a is attached to the fixture 40 fixed on the decorative slate tile roof 12. The same installation is performed on the seventh fixture 40g, the eighth fixture 40h, and the second solar cell module 10b.

  FIG. 10 is a perspective view from the eaves side showing a third stage when the solar cell module 10 is installed on the decorative slate tile roof 12. FIG. 11 is a perspective view from the ridge side showing a third stage when the solar cell module 10 is installed on the decorative slate tile roof 12. The eaves side frame of the third solar cell module 10c with respect to the first ridge side engagement hook 60a and the second ridge side engagement hook 60b erected on the fixed fifth fixture 40e and sixth fixture 40f. 24 is engaged. The same installation is performed for the fourth solar cell module 10d, the seventh fixture 40g, and the eighth fixture 40h.

  The first eaves-side engagement hook 70a and the second eaves erected on the first uppermost stage fixture 42a and the second uppermost stage fixture 42b with respect to the ridge-side frame 22 of the third solar cell module 10c. The side engagement hook 70b is engaged. As a result, the positions at which the first uppermost stage fixture 42a and the second uppermost stage fixture 42b are to be fixed to the decorative slate tile roof 12 are determined, and the first uppermost stage fixture 42a and the second uppermost stage fixture 42b are , Fixed at the determined position. The same installation is performed for the fourth solar cell module 10d, the third uppermost fixture 42c, and the fourth uppermost fixture 42d.

  According to the present embodiment, since the first pilot portion, the screw portion, and the second pilot portion are arranged in this order, a through hole can be generated in the decorative slate roof tile by the first pilot portion prior to the screw portion. Moreover, since a through-hole is produced | generated before passage of a thread part, it can suppress that a makeup | decoration slate roof tile raises with a thread part. Moreover, since it is suppressed that a makeup | decoration slate tile raises, it can suppress that a crack and a crack generate | occur | produce on a makeup | decoration slate tile roof. Moreover, since the occurrence of cracks and cracks is suppressed, the waterproofness of the decorative slate tile roof can be maintained. Moreover, since it arrange | positions in order of a 1st pilot part, a screw part, and a 2nd pilot part, generation | occurrence | production of the condition where a drill screw is screwed too much by the 2nd pilot part arrange | positioned following a screw part can be suppressed.

  Moreover, since generation | occurrence | production of the condition where a drill screw is screwed in too much is suppressed, it can prevent pressing a decorative slate tile roof toward a field board. Moreover, since the decorative slate tile roof cannot be pressed toward the base plate, the burden on the decorative slate tile roof, which is a part to be screwed in, can be reduced. Moreover, since such a drill screw is used for installation of a solar cell module, the burden of the decorative slate tile roof where the solar cell module is installed can be reduced. Moreover, since such a drill screw is used, the solar power generation device which can reduce the burden of a decorative slate tile roof can be provided.

  Also, since the eaves side engagement hook and the ridge side engagement hook are erected on the lower step surface and the upper step surface of the staircase shape, the space between the eaves side solar cell module and the ridge side solar cell module is increased. You can get closer. Moreover, since the space | interval of the solar cell module by the eaves side and the solar cell module by the ridge side can be closely approached, designability can be improved. Moreover, since the space | interval of the solar cell module on the eaves side and the solar cell module on the ridge side can be made close, the number of solar cell modules that can be installed can be increased. Moreover, since the fitting hole for fitting the wedge is provided, the detachment of the solar cell module can be prevented.

  Further, since the position of the fixture to be installed next is determined using the solar cell module already fixed to the fixture, it is possible to omit the marking of the fixture to be installed next. Further, since the marking of the fixture to be installed next is omitted, the solar cell module can be easily installed. Moreover, when installing the solar cell module, the solar cell frame and the fixture are not fixed using screws, so that the installation of the solar cell module can be facilitated.

The outline of one aspect is as follows. An aspect of the drill screw 200 is:
A drill portion 202 provided on the distal end side;
A first pilot portion 204 provided on the proximal end side of the drill portion 202;
A threaded portion 206 provided on the base end side of the first pilot portion 204;
A second pilot portion 208 provided on the proximal end side of the screw portion 206;
A screw head 210 provided on the base end side of the second pilot portion 208.

Another aspect is a method for installing the solar cell module 10. This method
Placing the fixture 40 on the decorative slate tile roof 12;
By rotating the drill screw 200 from the hole provided in the fixture 40 arranged on the decorative slate tile roof 12 toward the decorative slate tile roof 12, and attaching the drill screw 200 to the decorative slate tile roof 12, makeup is performed. Fixing the fixture 40 on the slate tile roof 12;
Attaching the solar cell module 10 to the fixture 40 fixed on the decorative slate tile roof 12.
In the step of fixing the fixture 40 on the decorative slate tile roof 12, the drill portion 202 provided on the distal end side, the first pilot portion 204 provided on the proximal end side of the drill portion 202, and the first pilot portion 204 A screw portion 206 provided on the base end side of the screw portion 206, a second pilot portion 208 provided on the base end side of the screw portion 206, and a screw head 210 provided on the base end side of the second pilot portion 208. The provided drill screw 200 is used.

Yet another aspect is a photovoltaic power generation apparatus 1000. This device
A fixture 40 that can be placed on the decorative slate tile roof 12;
A drill screw 200 attached to the decorative slate tile roof 12 through a hole provided in the fixture 40;
The solar cell module 10 attached to the fixture 40 is provided.
The drill screw 200 includes a drill portion 202 provided on the distal end side, a first pilot portion 204 provided on the proximal end side of the drill portion 202, and a screw portion 206 provided on the proximal end side of the first pilot portion 204. And a second pilot portion 208 provided on the proximal end side of the screw portion 206, and a screw head 210 provided on the proximal end side of the second pilot portion 208.

(Example 2)
Next, Example 2 will be described. Example 2 is related with the drill screw used when installing a solar cell module in a decorative slate tile roof similarly to Example 1. FIG. As a waterproof measure, a decorative slate tile roof generally has a waterproof sheet laid between the decorative slate tiles. In Example 2, it aims at improving waterproofing capability further. The drill screw according to the second embodiment is provided with a first pilot portion and a second pilot portion as in the first embodiment. Further, the drill screw is provided with a groove portion having an outer diameter smaller than the outer diameter of the first pilot portion between the first pilot portion and the screw portion. Further, a water stop member is attached to the groove portion. When the drill screw is fixed to the decorative slate tile roof, the first pilot portion is located under the field plate, so that the water stop member is also located under the field plate. For this reason, moisture can be prevented from entering the indoors from the outside of the field board, and the waterproof performance is further enhanced. The photovoltaic power generation apparatus 1000 according to the second embodiment is the same type as that shown in FIGS. Here, the difference will be mainly described.

  FIG. 12 is a side view showing the configuration of the drill screw 200 according to the second embodiment of the present invention. The drill screw 200 includes a drill part 202, a first pilot part 204, a screw part 206, a second pilot part 208, a screw head part 210, a groove part 220, and a water stop member 222. The screw portion 206 includes a shaft portion 214 and a screw thread 216.

  The drill part 202 and the first pilot part 204 are formed in the same manner as in the first embodiment. The groove part 220 is provided on the proximal end side of the first pilot part 204. The groove part 220 has a cylindrical shape, like the first pilot part 204, but its outer diameter is made smaller than the outer diameter of the first pilot part. Further, the combined length of the drill part 202, the first pilot part 204, and the groove part 220 is set to the aforementioned length L1.

  The water stop member 222 is attached to the groove portion 220 in order to prevent moisture such as rainwater from passing through the through holes formed in the base plate 90 due to the rotation of the drill portion 202 and the first pilot portion 204. The groove part 220 has an annular shape, and its inner diameter is designed to match the outer diameter of the groove part 220. Further, the outer diameter of the water stop member 222 is designed to be equal to or larger than the outer diameter of the first pilot portion 204. Such a water stop member 222 is also called a seal or packing. The water stop member 222 is made of, for example, rubber, but may be made of other materials. The threaded portion 206 is provided adjacent to the proximal end side of the groove portion 220.

  According to the present embodiment, the groove portion having an outer diameter smaller than the outer diameter of the first pilot portion is provided between the first pilot portion and the screw portion, and the water stop member is attached to the groove portion. As a result, the waterproof capability can be improved.

  The outline of one aspect is as follows. A groove portion 220 having an outer diameter smaller than the outer diameter of the first pilot portion 204 may be further provided between the first pilot portion 204 and the screw portion 206. An annular water stop member 222 may be attached to the groove 220.

Example 3
Next, Example 3 will be described. Example 3 is related with the drill screw used when installing a solar cell module in a decorative slate tile roof as before. The drill screw according to the second embodiment is provided with a groove portion having an outer diameter smaller than the outer diameter of the first pilot portion between the first pilot portion and the screw portion for the purpose of further enhancing the waterproof capability. The water stop member is attached to the groove portion. When such a drill screw is screwed into a decorative slate tile roof or a base plate, there is a possibility that the water stop member may shift toward the base end due to frictional resistance between them. Example 3 aims to prevent the water stop member from being displaced from the groove. In order to cope with this, the boundary between the first pilot portion and the groove portion of the drill screw according to the third embodiment has a mortar shape. Moreover, the boundary between the threaded portion and the groove portion also has a mortar shape. The photovoltaic power generation apparatus 1000 according to the third embodiment is the same type as that shown in FIGS. Here, the difference will be mainly described.

  FIG. 13 is a side view showing the configuration of the drill screw 200 according to the third embodiment of the present invention. The drill screw 200 includes a drill part 202, a first pilot part 204, a screw part 206, a second pilot part 208, a screw head 210, a groove part 220, a water stop member 222, a first protrusion part 224, and a second protrusion part 226. Including. The screw portion 206 includes a shaft portion 214 and a screw thread 216. The drill part 202 is formed in the same manner as in the first embodiment.

  The boundary between the first pilot part 204 and the groove part 220 is formed in a mortar shape such that the outer diameter part of the first pilot part 204 protrudes more proximally than the joint part between the first pilot part 204 and the groove part 220. Is done. The protruding portion in the mortar shape is the first protrusion 224. The first protrusion 224 is sharpened at an acute angle at the outer diameter portion of the first pilot portion 204. Since the first protrusion 224 is sharp at the outer diameter portion, the friction resistance when the water stop member 222 passes through the decorative slate tile roof 12 and the field plate 90 is reduced, and the water stop member 222 is the base end. Shifting toward is suppressed.

  In addition, a second protrusion 226 is formed at the boundary between the groove 220 and the screw portion 206 in the direction opposite to the boundary between the first pilot portion 204 and the groove 220. Since the 2nd projection part 226 is sharpened in the outer diameter part at the acute angle, when the water stop member 222 passes the decorative slate tile roof 12 and the field board 90, the water stop member 222 may shift toward the base end. Even if it exists, the water stop member 222 is pierced by the 2nd projection part 226, and is shaved. Since the shaved water blocking member 222 adheres to the decorative slate tile roof 12, the base plate 90, and the waterproof sheet (not shown), the waterproof performance of the decorative slate tile roof 12, the base plate 90, and the waterproof sheet (not shown) is improved.

  According to this embodiment, since the boundary between the first pilot portion and the groove portion has a mortar shape, the friction resistance when the water-stopping member passes through the decorative slate tile roof or the like is reduced, and the water-stopping member is based on the base. It can suppress shifting toward the end. Moreover, since the boundary between the threaded portion and the groove portion also has a mortar shape protruding toward the proximal end side, the water-stopping member is shaved, and the waterproof ability of the decorative slate tile roof or the like can be improved.

(Example 4)
Next, Example 4 will be described. Example 4 is related with the drill screw used when installing a solar cell module in a decorative slate tile roof as before. In the drill screw according to the second and third embodiments, a groove portion having an outer diameter smaller than the outer diameter of the first pilot portion is provided between the first pilot portion and the screw portion for the purpose of further improving the waterproof capability. A water stop member such as packing is mounted in the groove. In the fourth embodiment, the water stop member is mounted as in the second and third embodiments, but the mounting method of the water stop member is different from those in the second and third embodiments. The photovoltaic power generation apparatus 1000 according to the fourth embodiment is the same type as that shown in FIGS. Here, the difference will be mainly described.

  14A to 14C are side views showing the configuration of the drill screw 200 according to the fourth embodiment of the present invention. FIG. 14A is the same as the drill screw 200 shown in FIG. 12, but the water stop member 222 is not attached. FIG. 14B shows a state where the drill screw 200 is attached from the drill portion 202 to the container in which the water blocking material 250 is stored. The water stop material 250 is made of the same material as the water stop member 222 described above, but is not in a solid state but in a liquid or semi-liquid state. The drill screw 200 is attached to a container in which the water blocking material 250 is stored for a certain period of time. FIG. 14 (c) shows a state following FIG. 14 (b) and is extracted from the drill screw 200 from the container in which the water blocking material 250 is stored. The water stop material 250 attached to the surface of the drill part 202, the first pilot part 204, and the groove part 220 of the drill screw 200 is transferred to a solid state by natural drying, and becomes a water stop member 252. Since the groove part 220 having an outer diameter smaller than the outer diameter of the first pilot part 204 is arranged, a larger amount of the water stop member 252 than the first pilot part 204 is attached to the groove part 220, and the water stop ability is increased. improves.

  According to the present embodiment, the surface of the water stop member can be increased because the water stop member is attached to the surface of the drill screw 200 by adhering a liquid or semi-liquid water stop material and then naturally drying it. . Moreover, since the surface area of a water stop member expands, a waterproof capability can be improved.

(Example 5)
Next, Example 5 will be described. Example 5 relates to a drill screw as before. So far, a drill screw has been used to fix the fixture to the decorative slate tile roof located above the field board. Further, in the conventional drill screw, the first pilot portion and the second pilot portion are arranged so as to be suitable for such use. On the other hand, in Example 5, it aims at providing the drill screw suitable also for structures other than the structure on which the base plate and the decorative slate tile roof were separated and laminated | stacked.

  FIG. 15 is a side view showing the configuration of the drill screw 300 according to the fifth embodiment of the present invention. The drill screw 300 includes a drill portion 302, a first pilot portion 304, a first screw portion 306, a second screw portion 308, a second pilot portion 310, and a screw head 314. The drill part 302, the first pilot part 304, the first screw part 306, the second pilot part 310, the screw head 314 are the drill part 202, the first pilot part 204, the screw part 206, the second pilot part 208, the screw head. This is the same as the unit 210.

  The third pilot portion 312 is provided adjacent to the proximal end side of the first screw portion 306. The third pilot portion 312 is formed in the same manner as the first pilot portion 304 and the second pilot portion 310, but the length thereof is determined so as to match the usage pattern of the drill screw 300. The second screw portion 308 is provided adjacent to the proximal end side of the third pilot portion 312. The second threaded portion 308 is formed in the same manner as the first threaded portion 306, but its length is determined to match the usage pattern of the drill screw 300. As described above, the third pilot portion 312 is provided between the first screw portion 306 and the second screw portion 308.

  According to the present embodiment, since three or more screw portions are arranged while sandwiching the pilot portion, it is possible to provide a drill screw suitable for fixing to those having various configurations.

  The outline of one aspect is as follows. You may further provide the 3rd pilot part 312 provided between the 1st thread part 306 and the 2nd thread part 308 which form a thread part.

  In the above, this invention was demonstrated based on the Example. This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications can be made to each of those constituent elements or combinations of processing processes, and such modifications are also within the scope of the present invention. .

  In the first and second embodiments, the drill screw 200 is used to fix the solar cell module 10 to the decorative slate tile roof 12. However, the present invention is not limited to this. For example, the drill screw 200 may be used for other purposes. According to this modification, the application range of the drill screw 200 can be expanded.

  In the first and second embodiments, the solar cell module 10 is fixed to the decorative slate tile roof 12 using the fixture 40 and the drill screw 200. However, the present invention is not limited thereto. For example, when the solar cell module 10 is fixed to the decorative slate tile roof 12, an instrument other than the fixture 40 may be used. As an example, an anchor method, a slate method, a metal roof method, a building material integrated method, a support bracket method, a vertical beam method, a horizontal beam method, a support tile method, an insertion method are used, and a drill screw 200 is used at that time. Also good. In addition, the drill screw 200 can also be used for a field plate on which ceramic tiles such as Japanese tiles are mounted, a metal roof on which metal side walls, tile bars, folded plates, etc. are mounted, asphalt single material, and the like. According to this modification, the application range of the drill screw 200 can be expanded.

  In the present Example 1, the dimension of each component of the drill screw 200 is shown. However, the present invention is not limited to this, and other dimensions may be used. According to this modification, the application range of the drill screw 200 can be expanded.

  200 drill screw, 202 drill part, 204 first pilot part, 206 screw part, 208 second pilot part, 210 screw head, 212 cross groove part, 214 shaft part, 216 screw thread.

Claims (5)

A drill part provided on the tip side;
A first pilot portion provided on the base end side of the drill portion;
A threaded portion provided on the base end side of the first pilot portion;
A second pilot portion provided on the base end side of the screw portion;
A screw head provided on the base end side of the second pilot portion;
A groove portion provided between the first pilot portion and the screw portion and having an outer diameter smaller than an outer diameter of the first pilot portion;
A first protrusion disposed at a boundary between the first pilot portion and the groove;
A second protrusion disposed at a boundary between the groove and the screw portion;
An annular water stop member is attached to the groove,
The first protrusion has a shape in which an outer diameter portion of the first pilot portion protrudes more proximally than a joint portion between the first pilot portion and the groove portion,
The drill screw, wherein the second protrusion has a shape in which an outer diameter portion of the screw portion protrudes more toward a tip side than a joint portion between the screw portion and the groove portion .   2. The drill screw according to claim 1, wherein the first projecting portion is sharpened at an acute angle in an outer diameter portion of the first pilot portion.   3. The drill screw according to claim 1, wherein the second projecting portion is sharpened at an acute angle at an outer diameter portion of the screw portion. Placing a fixture on the roof;
Fixing the fixture on the roof by rotating a drill screw toward the roof from a hole provided in the fixture disposed on the roof and attaching the drill screw to the roof;
Attaching a solar cell module to the fixture fixed on the roof,
In the step of fixing the fixing tool on the roof, a drill part provided on the distal end side, a first pilot part provided on the proximal end side of the drill part, and a proximal end side of the first pilot part are provided. A threaded portion, a second pilot portion provided on the base end side of the screw portion, a screw head portion provided on the base end side of the second pilot portion , the first pilot portion, and the screw portion And a groove having an outer diameter smaller than the outer diameter of the first pilot portion, a first protrusion disposed at a boundary between the first pilot portion and the groove, and the groove And a second projecting portion disposed at a boundary between the threaded portion and the groove portion, an annular water stop member is attached to the groove portion, and the first projecting portion is formed by the first pilot portion. The outer diameter portion is a joint portion between the first pilot portion and the groove portion. Has a shape protruding Rimomoto end, the second protrusion, the outer diameter portion of the threaded portion, the drill has a shape protruding frontward of the junction between the said threaded portion groove A method for installing a solar cell module, wherein a screw is used. A fixture that can be placed on the roof;
A drill screw attached to the roof through a hole provided in the fixture;
A solar cell module attached to the fixture,
The drill screw is
A drill part provided on the tip side;
A first pilot portion provided on the base end side of the drill portion;
A threaded portion provided on the base end side of the first pilot portion;
A second pilot portion provided on the base end side of the screw portion;
A screw head provided on the base end side of the second pilot portion;
A groove portion provided between the first pilot portion and the screw portion and having an outer diameter smaller than an outer diameter of the first pilot portion;
A first protrusion disposed at a boundary between the first pilot portion and the groove;
A second protrusion disposed at a boundary between the groove and the screw portion;
An annular water stop member is attached to the groove,
The first protrusion has a shape in which an outer diameter portion of the first pilot portion protrudes more proximally than a joint portion between the first pilot portion and the groove portion,
The solar power generation device, wherein the second protrusion has a shape in which an outer diameter portion of the screw portion protrudes toward a tip side from a joint portion between the screw portion and the groove portion .

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