JP6278460B2 - Mounting bolt fitting - Google Patents

Description

  The present invention relates to a fixture for attaching a rising bolt that penetrates a roof plate and protrudes on a roof to a roof beam.

  For roofs of factories, warehouses, etc., a structure including a beam made of lip groove steel and a roof plate made of corrugated sheet fixed to the beam may be adopted. This roof is shown in FIGS. The roof also includes a hook bolt 2 for fixing the roof plate (corrugated plate) 10 to the beam 8. The hook bolt 2 includes a shank 4 and a hook portion 6. The hook portion 6 is engaged with a beam (lip groove type steel) 8. The shank 4 penetrates the corrugated plate 10. The corrugated sheet 10 is fixed to the lip groove steel 8 by tightening the nut 12 screwed into the shank 4.

  Also shown in FIGS. 6 and 7 is a fully threaded riser bolt 14. The rising bolt 14 is attached to the lip groove steel 8. The start-up bolt 14 penetrates the corrugated plate 10. The rising bolt 14 protrudes upward from the corrugated plate 10. The start-up bolt 14 is used for installing a photovoltaic power generation panel or the like.

  In the operation of attaching the rising bolt 14 to the lip groove steel 8, first, holes are formed in the upper plate 16 and the lower plate 18 of the lip groove steel 8. Next, the start-up bolts 14 are passed through these holes. By tightening the nut 20, the position of the rising bolt 14 is fixed. When installing a photovoltaic power generation panel on an existing roof, it is necessary to make a hole in the lip groove steel 8 at a high place. This work requires a cutting tool or the like. This is a heavy labor. Chips are generated during work. During work, sparks are also generated. The formation of the hole may cause a decrease in the strength of the lip groove steel 8. Furthermore, there is a concern that the formation of holes promotes the corrosion of the lip groove steel 8.

  Japanese Laid-Open Patent Publication No. 2013-100654 proposes a rising bolt mounting tool for solving such a problem. With this riser bolt mounting tool, the problems related to the drilling operation in the lip groove steel 8 are eliminated.

JP 2013-100654 A

  An object of the present invention is to provide an attachment that can more easily attach a rising bolt to a beam without reducing the strength of the beam.

The riser bolt fixture according to the present invention is:
A mounting tool for attaching a start-up bolt that penetrates a roof beam provided with a roof plate,
An outer member disposed on the outer side of the beam, and an inner member that is detachable from the outer member and disposed on the inner side of the beam;
The outer member has a vertical plate, an upper plate extending in the horizontal direction from the upper portion of the vertical plate, and a lower plate extending in the horizontal direction from the lower portion of the vertical plate,
The inner member has a vertical plate,
A hole through which the rising bolt passes is formed in the upper plate and the lower plate of the outer member,
The outer member and the inner member are configured to be fixed to the beam by being fastened by a fastener while the vertical plates sandwich the beam portion from the inner side and the outer side.

Preferably, the beam is made of lip channel steel,
There are multiple fasteners,
By removing some fasteners, the inner member can rotate with respect to the outer member around the remaining fasteners,
The inner member is configured to be located at an entry / exit position where the inner member can enter / exit the inside of the beam by the rotation and an engagement position where the inner member cannot enter / exit after being engaged with the lip portion of the beam.

Preferably, a rising bolt nut is disposed in the rising bolt through hole on the upper surface of the upper plate.
A nut holding portion is formed on the upper surface of the upper plate to prevent the nut from rotating and to allow the nut to be finely moved and restrained.

  Preferably, an upper and lower plate support portion is provided between the upper plate and the lower plate of the outer member to prevent the upper plate and the lower plate from bending in the direction of mutual approach.

  Preferably, the upper and lower plate support portions are constituted by pipes through which the rising bolts are inserted.

  According to the rising bolt mounting tool of the present invention, the rising bolt can be easily attached to the beam. This fixture does not reduce the strength of the beam.

FIG. 1 is a partial cross-sectional perspective view showing a rising bolt attachment according to an embodiment of the present invention together with a beam and a rising bolt. 2 is a partial cross-sectional perspective view of the fixture of FIG. 1 before assembly. 3 is a cross-sectional view taken along line III-III in FIG. 4 (a) is a front view showing an outer member of the fixture of FIG. 1, FIG. 4 (b) is a plan view thereof, FIG. 4 (c) is a bottom view thereof, and FIG. (D) is the left side view. FIG. 5 is a perspective view showing an inner member of the fixture of FIG. FIG. 6 is a cross-sectional view showing a state in which the rising bolt is fixed to the roof by a conventional method. FIG. 7 is an enlarged front view showing a start-up bolt in the roof of FIG.

  Hereinafter, the present invention will be described in detail based on preferred embodiments with appropriate reference to the drawings.

  1 to 3 includes an outer member 24 and an inner member 26. As shown in FIGS. The outer member 24 is a member for fixing the rising bolt 14. The inner member 26 is a member for fixing the fixture 22 to the lip groove steel 8 with the outer member 24. As will be described later, the outer member 24 and the inner member 26 can be detachably fastened by fastening bolts 46 as fasteners. The outer member 24 and the inner member 26 are preferably formed from metal. In the fixture 22 attached to the lip groove steel 8, the outer member 24 is arranged outside the lip groove steel 8 and the inner member 26 is arranged inside the lip groove steel 8. As will be described later, the inner member 26 is inserted between the upper and lower lip portions 9 of the lip groove steel 8, that is, through the opening 9 a of the lip groove steel 8.

  In FIG. 4, the outer member 24 is shown. The outer member 24 includes a vertical plate 28, an upper plate 30, a lower plate 32, and reinforcing ribs 34. The vertical plate 28, the upper plate 30, the lower plate 32, and the reinforcing rib 34 are integrated. The vertical plate 28, the upper plate 30, the lower plate 32, and the reinforcing ribs 34 are formed by bending one plate. The upper plate 30 extends in the horizontal direction from the upper end of the vertical plate 28. The lower plate 32 extends in the horizontal direction from the lower end of the vertical plate 28. The reinforcing ribs 34 extend in the horizontal direction from the left and right ends of the vertical plate 28. The extending direction of the vertical plate 28 and the extending directions of the upper plate 30, the lower plate 32, and the reinforcing rib 34 are substantially perpendicular. The surface of the upper plate 30 and the surface of the lower plate 32 are parallel. The upper plate 30 and the lower plate 32 are not particularly limited to extend from the upper and lower ends of the vertical plate 28. The reinforcing ribs 34 are not particularly limited to extend from both ends of the vertical plate 28. You may extend from the position which entered inside from the edge part.

  The back surface of the vertical plate 28 is a portion that clamps the lip portion 9 of the lip groove steel 8 and fixes the fixture 22 to the lip groove steel 8 with the back surface of the vertical plate 52 of the inner member 26 described later. is there. The back surface of these vertical plates 28 and 52 can be called a pressing surface.

  Each of the upper plate 30 and the lower plate 32 is formed with a through hole 36 through which the rising bolt 14 is inserted. When the upper plate 30 and the lower plate 32 are horizontal, the upper and lower two through holes 36 are formed at positions that coincide with the vertical direction.

  On the upper surface of the upper plate 30, a hexagon nut 38 for the rising bolt 14 is disposed. A nut holding portion 40 is formed at the position of the through hole 36 on the upper surface of the upper plate 30. The nut holding portion 40 prevents the nut 38 from rotating (allows rotation of less than 60 °) and restrains the nut 38 while allowing its fine movement. The nut 38 is accommodated in the nut holding portion 40. The nut holding part 40 is formed from a metal plate. The nut holding part 40 is fixed to the upper surface of the upper plate 30 by welding, screwing or the like. The nut 38 cannot escape from the nut holding portion 40.

  The nut holding portion 40 has a substantially rectangular parallelepiped internal space, and surrounds the top and the periphery of the nut 38 with a slight gap. When the nut 38 tries to rotate around its own axis, the vicinity of the hexagonal apex abuts against the inner surface of the nut holding portion 40 and further rotation is prevented. Therefore, the nut 38 cannot rotate more than 60 °. The nut 38 can be finely moved in the vertical direction and the horizontal direction inside the nut holding portion 40. A through hole 42 through which the rising bolt 14 is inserted is formed on the upper surface of the nut holding portion 40 so as to be coaxial with the through holes 36 of the upper plate 30 and the lower plate 32. In FIG. 1 to FIG. 3, the rising bolt 14 is inserted into the through holes 36 and 42 and screwed into the nut 38.

  Hereinafter, a method of fixing the rising bolt 14 to the outer member 24 will be described. As shown in FIGS. 1 to 3, the rising bolt 14 of the total screw is inserted through the through holes 36 of the lower plate 32 and the upper plate 30 from below and is rotated to be screwed into the nut 38. . This is because the nut 38 cannot rotate due to the restraint of the nut holding portion 40. Thus, the operator does not need to fix the nut 38 by hand when screwing the rising bolt 14 into the nut 38. Fixing work of the start-up bolt 14 becomes easy.

  A washer and a spring washer are attached to the lower side of the rising bolt 14, and a hexagon nut 48 is screwed. The rising bolt 14 continues to rise as the rotation continues. Among them, the lower washer, the spring washer and the nut 48 abut on the lower plate 32. When the rotation is further continued, the upper and lower nuts 38 and 48 pinch the outer member 24, and the rising bolt 14 is fixed to the outer member 24. The relative position in the vertical direction of the rising bolt 14 with respect to the outer member 24, that is, the length of the portion protruding upward from the outer member 24 of the rising bolt 14 changes the position of the lower nut 48 with respect to the rising bolt 14. Can be adjusted.

  In the vertical plate 28, two through holes 44 are formed on the left and right sides, respectively. The positions of the four through holes 44 correspond to the four corners of the rectangle. That is, the four through holes 44 are in a line-symmetrical position with respect to the vertical center line of the vertical plate 28 and are also in a line-symmetrical position with respect to the horizontal center line. These through holes 44 are long through holes 44 that are long in the vertical direction. A fastening bolt 46 as a fastener for fastening the outer member 24 and the inner member 26 is inserted into each through long hole 44. The reason why each through-hole 44 is elongated in the vertical direction is to allow the vertical position adjustment of the inner member 26 with respect to the outer member 24.

  The reinforcing ribs 34 formed on the vertical plate 28 prevent the vertical plate 28 from being bent toward the opening 9a of the lip groove steel 8 when the fastening bolt 46 is tightened. The vertical plate 28 may be subjected to reinforcing unevenness processing (so-called stringing processing) extending in the vertical direction in place of the reinforcing rib 34 or together with the reinforcing rib 34.

  Between the upper plate 30 and the lower plate 32, an upper and lower plate support portion 50 for preventing bending in a direction in which the upper plate 30 and the lower plate 32 approach each other is disposed. In this embodiment, the pipe member 50 is employ | adopted as this upper-lower plate support part. The pipe member 50 extends in the vertical direction. The rising bolt 14 is inserted into the pipe member 50. The pipe member 50 may be configured to be detachable from the outer member 24. Alternatively, the pipe member 50 may be fixed by welding between the upper plate 30 and the lower plate 32.

  The pipe member 50 allows the upper plate 30 and the lower plate 32 to approach each other when the rising bolt 14 is fixed to the outer member 24, that is, when the rising bolt 14 is tightened by the upper and lower nuts 38 and 48. It is prevented from bending. Thereby, loosening of the nuts 38 and 48 is prevented. Therefore, unlike the conventional fixture, it is not necessary to use two nuts so as to sandwich the upper plate and / or the lower plate from above and below. The rising bolt 14 can be fixed to the outer member 24 by two nuts 38 and 48.

  As the upper and lower plate support portions, a second vertical plate may be fixed between the upper plate 30 and the lower plate 32 instead of the pipe member 50 or together with the pipe member 50. For example, the second vertical plate may be located on the opposite side of the vertical plate 28 across the insertion route of the rising bolt 14. In other words, the outer member may be formed in a substantially rectangular tube shape from the vertical plate 28, the upper plate 30, the lower plate 32, and the second vertical plate. Alternatively, the second vertical plate may be formed at other positions.

  In FIG. 5, the inner member 26 is shown. The inner member 26 is composed of a pair of left and right members (inner half). The left and right inner halves 26L and 26R have a line-symmetric shape as shown in the figure. The left inner half body 26 </ b> L includes a vertical plate 52 and a side plate 54 that extends in the horizontal direction from the left side end of the vertical plate 52. The right inner half 26 </ b> R also includes a vertical plate 52 and a side plate 54 that extends laterally from the right side end of the vertical plate 52. In each of the inner halves 26L and 26R, the vertical plate 52 and the side plate 54 are integrated. The vertical plate 52 and the side plate 54 are formed by bending a single plate.

  The left inner half 26L is fastened to the left side of the back surface of the vertical plate 28 of the outer member 24 by fastening bolts 46 (FIG. 2). The right inner half 26R is fastened to the right side of the back surface of the vertical plate 28 of the outer member 24 by fastening bolts 46 (FIG. 2). The left and right inner halves 26L and 26R are attached to the back surface of the vertical plate 28 of the outer member 24 so as to be line-symmetric with respect to the vertical center line. The left inner half body 26 </ b> L is fastened with the side plate 54 positioned on the left side. The right inner half 26R is fastened with the side plate 54 positioned on the right side.

  The vertical plate 52 has a substantially rectangular shape. The side plate 54 is composed of an upper narrow portion 54N and a lower wide portion 54W, and is substantially L-shaped. In other words, a rectangular notch 56 is formed in the upper portion of the side plate 54. The extending direction of the vertical plate 52 and the extending direction of the side plate 54 are preferably substantially perpendicular.

  As shown in FIG. 3, the vertical lengths of the vertical plate 52 and the side plate 54 of the inner member 26 are slightly smaller than the vertical length of the inner side of the lip groove steel 8. The vertical lengths of the vertical plate 52 and the side plate 54 are larger than the distance between the upper and lower lip portions 9 of the lip groove steel 8. The lateral length (width) of the wide portion 54 </ b> W of the side plate 54 is slightly smaller than the lateral length (width) inside the transverse section of the lip groove steel 8. The width of the wide portion 54 </ b> W is smaller than the separation distance between the upper and lower lip portions 9 of the lip groove steel 8.

  As shown in FIGS. 1 to 3, the side plate 54 is arranged so that the surface thereof is perpendicular to the longitudinal direction of the lip channel steel 8 inside the lip channel steel 8. The side plate 54 is disposed so as to close the passage in the lip groove steel 8. However, since the notch 56 is formed, various cables can be inserted into the lip groove steel 8.

  When an installation object such as a photovoltaic power generation panel is attached to the rising bolt 14, a downward load is applied to the inner bottom portion of the lip channel steel 8 from the lower end of the wide portion 54 </ b> W of the side plate 54. At this time, the entire lower end of the wide portion 54 </ b> W of the side plate 54 is in contact with the substantially entire width direction of the inner bottom portion of the lip groove steel 8. Therefore, the moment applied to the inner bottom can be reduced.

  As shown in FIG. 2, the vertical plates 52 of the inner halves 26 </ b> L and 26 </ b> R are formed with two through holes 58 arranged vertically. The fastening bolt 46 can be inserted into the through hole 58. The position of the through hole 58 corresponds to the position of the through long hole 44 of the vertical plate 28 of the outer member 24. The fastening bolt 46 can be displaced only in the length range of the through long hole 44 in the vertical direction. As a result, the vertical position of the inner member 26 with respect to the outer member 24 can be adjusted.

  As shown in FIG. 5, nuts 60 are fixed by welding at the positions of the respective through holes 58 in front of the vertical plates 52 of the inner halves 26 </ b> L and 26 </ b> R. The fastening bolt 46 is inserted into the through hole 58 and then screwed into the nut 60. By tightening the fastening bolt 46, the outer member 24 and the inner member 26 are fastened. By tightening the fastening bolt 46, the back surfaces of the vertical plates 28 and 52 of both members 24 and 26 clamp the lip portion 9 of the lip groove steel 8. Thereby, the fixture 22 is fixed to the lip groove steel 8.

  Hereinafter, a method for attaching and detaching the fixture 22 to the lip groove steel 8 will be described. One (for example, the lower) fastening bolt 46 of the upper and lower sides of the inner halves 26L and 26R fastened to the outer member 24 is removed, and the other (for example, the upper) fastening bolt 46 is loosened. Then, each inner half 26L, 26R can rotate around the upper fastening bolt 46. The inner halves 26L and 26R are rotated outward by about 90 ° to be turned sideways (indicated by a two-dot chain line in FIG. 5). This is the entry / exit position of the inner member 26. In this state, both inner halves 26L, 26R (inner member 26) can be inserted into the lip groove steel 8 from the opening 9a of the lip groove steel 8. In this state, the fastening bolt 46 passes from the outside to the inside through the opening 9a.

Next, the inner halves 26L and 26R are returned to their original vertical positions (shown by solid lines in FIG. 5). This is a locking position where the inner member 26 can be locked to the lip portion 9. All fastening bolts 46 are tightened in a state where both inner halves 26L and 26R are in this locking position. Then
The vertical plate 28 of the outer member 24 and the vertical plate 52 of the inner member 26 pinch the lip portion 9. Thereby, the fixture 22 is fixed to the lip groove steel 8. In order to remove the inner member 26 from the lip groove steel 8, the reverse procedure to the above may be used. In the present embodiment, it is desirable to remove the lower fastening bolt 46 and loosen the upper fastening bolt 46 in order to attach / detach the fixture 22 to / from the lip channel steel 8.

  Each of the inner halves 26L and 26R is formed with a chamfered portion and a notched portion so that it can easily rotate inside the lip channel steel 8. As shown in FIG. 5, the lower edge of the vertical plate 52 is slightly cut out over the entire width. That is, the lower end edge of the vertical plate 52 is positioned slightly above the lower end edge of the side plate 54. The upper edge of the side plate 54 is slightly cut over the entire width. That is, the upper edge of the side plate 54 is positioned slightly below the upper edge of the vertical plate 52. Accordingly, the side plate 54 side at the upper edge of the vertical plate 52 is slightly inclined downward. With such a configuration, each inner half 26L, 26R can be prevented from buffering with the inner surface of the lip groove steel 8 when rotating around the upper fastening bolt 46. Further, it is preferable that chamfering or the like for preventing buffering with the inner surface of the lip groove steel 8 is also formed at corners such as both ends at the lower end of the side plate 54.

  In the present embodiment, the inner member 26 includes a pair of halves 26L and 26R. However, the present invention is not limited to such a configuration. The inner member 26 may be a single body. For example, the inner member may be composed of one channel steel (channel steel). The length of the channel steel may be smaller than the length in the vertical direction inside the transverse section of the lip channel steel 8.

8 ... Lip groove steel 10 ... Corrugated plate 14 ... Rising bolt 22 ... Fixture 24 ... Outer member 26 ... Inner member 28 ... Vertical plate 30 (outer member) ... Upper plate 32 ... Lower plate 34 ... Reinforcing ribs 36, 42 ... (for rising bolts) Through holes 38, 48 ... (for rising bolts) Nuts 40 ... Nut holding Portion 44 ... (for fastening bolt) through long hole 46 ... fastening bolt 50 ... pipe member 52 ... vertical plate (for inner member) 54 ... side plate 56 ... (for side plate) Notch 58 ... (for fastening bolts) through hole 60 ... (for fastening bolts) nut

  The fixture which concerns on this invention can be used also for the roof provided with roof boards other than a corrugated sheet.

Claims (5)

A mounting tool for attaching a start-up bolt that penetrates a roof beam provided with a roof plate,
An outer member disposed on the outer side of the beam, and an inner member that is detachable from the outer member and disposed on the inner side of the beam;
The outer member has a vertical plate, an upper plate extending in the horizontal direction from the upper portion of the vertical plate, and a lower plate extending in the horizontal direction from the lower portion of the vertical plate,
The inner member has a vertical plate,
A hole through which the rising bolt passes is formed in the upper plate and the lower plate of the outer member,
A rising bolt configured so that the outer member and the inner member are fixed to the beam by being fastened by a fastener with the vertical plates sandwiching the beam portion from the inner side and the outer side. Fittings. The beam is made of lip channel steel,
There are multiple fasteners,
By removing some fasteners, the inner member can rotate with respect to the outer member around the remaining fasteners,
The fixture according to claim 1, wherein the inner member can be located at an entry / exit position where the inner member can enter / exit the inside of the beam and an engagement position where the inner member cannot engage / exit with the lip portion of the beam. A nut for the rising bolt is disposed in the through hole for the rising bolt on the upper surface of the upper plate,
The fitting according to claim 1 or 2, wherein a nut holding portion is formed on an upper surface of the upper plate to prevent rotation of the nut and to allow the nut to be restrained by allowing its fine movement.   4. The upper and lower plate support portions for preventing the upper plate and the lower plate from bending in the direction in which the upper plate and the lower plate approach each other between the upper plate and the lower plate of the outer member. Fittings.   The fixture according to claim 4, wherein the upper and lower plate support portions are constituted by pipes through which the rising bolts are inserted.

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