JP2020139323A - Fastener - Google Patents

Abstract

To provide a fastener capable of easily fixing a slab-like floor material to a beam material comprising a shaped steel.SOLUTION: A fastener fixing a slab-like floor material 20 to a beam material 10 formed of shape steel comprises clamp means provided on a lower face 20b of the floor material 20 and clamping the beam material 10 so as to press the beam material 10 to the lower face 20b of the floor material 20. The clamp means comprises a clamper 110 including: an attaching tool 111 with a U-shaped cross section that engages with a side face 20c of the floor material 20 so as to connect an upper face 20a of the floor material 20 with the lower face 20b; a screw shaft 112 provided so as to protrude on a lower plate 111b of the attaching tool 111 engaging with the floor material 20; a cylindrical spacer 113 inserted into the screw shaft 112; a nut 114 screwed with the screw shaft 112; and a clamp plate 115 inserted into the screw shaft 112 and making a tip side be in contact with the beam material 10 so as to make a base end side be positioned between the spacer 113 and the nut 114.SELECTED DRAWING: Figure 4

Description

The present invention relates to a fixture for fixing a slab-shaped flooring material to a beam material made of shaped steel.

Various materials (building materials) are used in buildings. In recent years, cross laminated timber (CLT) has attracted attention as one of the building materials (see, for example, Patent Document 1 below).

The orthogonal laminated board is a wood-based material in which ground boards are arranged so that their fiber directions are parallel to each other and alternately laminated and bonded so that their fiber directions are orthogonal to each other, and is lightweight and excellent in strength. By using such a wood-based material, it is possible to construct a building in which the total weight of the building materials is suppressed.

Then, for example, by using a metal-based material such as shaped steel as a beam material, rigidity as a building is ensured, and by using a slab-shaped wood-based material such as CLT as a floor material, the building is made lightweight. By changing the structure, the seismic performance and seismic isolation performance of the building can be remarkably improved.

Japanese Unexamined Patent Publication No. 2017-0874779

When fixing a slab-shaped floor material to a beam material made of shaped steel as described above, for example, a plurality of studs are erected on the beam material and a plurality of stud insertion holes (through holes) are provided in the floor material. After forming and inserting the floor material stud insertion holes into the beam material studs so as to match the corresponding beam material studs and the floor material stud insertion holes, the floor material is positioned and arranged on the beam material. , The beam material and the floor material are fixed by filling the stud insertion hole of the floor material with resin and curing it.

For this reason, it is necessary to accurately align the plurality of stud insertion holes of the floor material with the plurality of studs of the beam material, which is very troublesome.

Therefore, it is an object of the present invention to provide a fixture capable of easily fixing a slab-shaped floor material to a beam material made of shaped steel.

The fixture according to the present invention for solving the above-mentioned problems is a fixture for fixing a slab-shaped floor material to a beam material made of shaped steel, and is provided on the lower surface of the floor material. The beam material is provided with a clamping means for clamping the beam material so as to be pressed against the lower surface of the beam material.

Further, the fixture according to the present invention has a U-shaped cross section in which the clamping means is fitted to the side surface of the floor material so as to communicate between the upper surface and the lower surface of the floor material in the above-mentioned fixture. The fitting, the screw shaft protruding from the lower part of the fitting that fits into the floor material, the tubular spacer that is inserted into the screw shaft, the nut that is screwed into the screw shaft, and the spacer. It is characterized by having a clamp plate that is inserted into the screw shaft so as to position the base end side between the nut and the tip side and brings the tip end side into contact with the beam material.

Further, in the fixture according to the present invention, in the above-mentioned fixture, the screw shaft of the clamp means is projected in pairs at the lower part of the fixture, and the spacer and the nut of the clamp means are formed. Each of the screw shafts is provided, and the clamp plate of the clamp means is a single member whose base end side is inserted into the pair of screw shafts.

Further, in the above-mentioned fixture, the fixture according to the present invention includes an upper plate in which the fixture of the clamp means abuts on the upper surface of the floor material, a lower plate in contact with the lower surface of the floor material, and the above. A side plate that comes into contact with the side surface of the floor material and connects the upper plate and the lower plate is provided, and is provided on the peripheral edge of the lower surface of the floor material and has the same thickness as the lower plate of the fixture of the clamping means. It is characterized by having an adjusting plate having a thickness.

Further, in the fixture according to the present invention, in the above-mentioned fixture, the clamp means is embedded in the lower surface of the floor material to form a screw hole at an end located on the lower surface side of the floor material, so that the screw shaft The bolt screwed into the screw hole of the female screw shaft, the tubular spacer into which the bolt is inserted, and the bolt so as to position the proximal end side between the head of the bolt and the spacer. It is characterized by having a clamp plate into which the bolt is inserted and the tip end side is brought into contact with the beam material.

Further, in the fixture according to the present invention, in the above-mentioned fixture, the female screw shaft of the clamp means is embedded in a pair on the lower surface of the floor material, and the bolt and the spacer of the clamp means are formed. The clamp plate of the clamping means, which is provided on each of the female screw shafts, is a single member into which the bolts screwed into the pair of female screw shafts are inserted into the base end side. To do.

Further, in the fixture according to the present invention, in the above-mentioned fixture, the female screw shaft of the clamp means is pulled out from the floor material on the outer peripheral surface on the end side located on the inner side of the floor material. It is characterized by having a protrusion that suppresses rotation in the floor material.

According to the fixture according to the present invention, since the clamping means clamps the beam material so as to press it against the lower surface of the floor material, there is no need to align the beam material with the beam material, and the floor material with respect to the beam material does not need to be aligned. Since it is only necessary to perform steady alignment, the floor material can be easily fixed to the beam material.

It is an external view of the main part of the first embodiment of the fixture which concerns on this invention, A is a side view, and B is a bottom view. It is an external view of the floor material used for the 1st Embodiment of the fixture which concerns on this invention, A is the perspective view from the upper surface side, and B is a perspective view from the lower surface side. It is an external view of the floor material of FIG. 2 with the fixture of FIG. 1 attached, A is a perspective view from the upper surface side, and B is a perspective view from the lower surface side. It is sectional drawing of the state which fixed the floor material of FIG. 3 to a beam material. It is an external view of the second embodiment of the fixture which concerns on this invention, A is a side view, and B is a bottom view. 5 is an external view of the female screw shaft of FIG. 5, where A is a side view and B is a sectional view taken along line BB of A. It is a perspective view from the lower surface side of the floor material used for the 2nd Embodiment of the fixture which concerns on this invention. It is a perspective view from the lower surface side in the state where the female screw shaft of FIGS. 5 and 6 is attached to the floor material of FIG. 7. It is sectional drawing of the state which fixed the floor material of FIG. 8 to a beam material.

Although the embodiment of the fixture according to the present invention will be described with reference to the drawings, the present invention is not limited to the following embodiments described based on the drawings.

<First embodiment>
The first embodiment of the fixture according to the present invention will be described with reference to FIGS. 1 to 4.

As shown in FIGS. 1 to 4, the fixture according to the present embodiment is a fixture for fixing the slab-shaped floor material 20 to the beam member 10 made of shaped steel, and is provided on the lower surface of the floor material 20. The clamper 110 is provided as a clamping means for clamping the beam member 10 so as to press the beam member 10 against the lower surface of the floor member 20.

The beam member 10 is made of shaped steel (metal-based material) such as H-shaped steel or I-shaped steel, and its flange portion (rib portion) 11 is oriented so as to run along the horizontal direction, and is shaped like a square in a plan view. It is assembled so that it has a grid shape.

A fireproof panel 22 made of an inorganic material such as gypsum or calcium silicate is attached to the floor material 20 so as to surround the upper surface, the lower surface and the side surface of the main body panel 21 made of a wood-based material such as a cross laminated board (CLT). It is a slab-shaped one to which a protective plate 23 made of a wood-based material such as Lauan plywood is further attached to the upper surface thereof.

The clamper 110 fits into the floor material 20 and a fixture 111 having a U-shaped cross section that fits into the side surface 20c of the floor material 20 so as to communicate between the upper surface 20a and the lower surface 20b of the floor material 20. Between the screw shaft 112 projecting from the lower part of the fitting 111, the tubular spacer 113 inserted into the screw shaft 112, the nut 114 screwed into the screw shaft 113, and the spacer 113 and the nut 114. It has a clamp plate 115 that is inserted into the screw shaft 112 so as to position the base end side and brings the tip end side into contact with the beam member 10.

The fixture 111 has an upper plate 111a that abuts on the upper surface 20a of the floor material 20, a lower plate 111b that abuts on the lower surface 20b of the floor material 20, and an upper plate 111a that abuts on the side surface 20c of the floor material 20. It is provided with a side plate 111c that connects the lower plate 111b and the lower plate 111b.

The screw shaft 112 is welded to the lower surface (lower portion) of the lower plate 111b of the fixture 111 so as to form a pair and project. The spacer 113 is coaxially inserted into a pair of screw shafts 112 so as to be detachably attached to each other. The nuts 114 are detachably screwed to the pair of screw shafts 112, respectively. The clamp plate 115 is a single member that is detachably inserted into a pair of screw shafts 112 at the base end side.

The fixture is further made of a wood-based material such as Rawang plywood, which is provided on the peripheral edge of the lower surface 20b of the floor material 20 and has the same thickness as the lower plate 111b of the fixture 111 of the clamper 110. It includes an adjusting plate 120.

The adjusting plate 120 is attached to each corner of the lower surface 20b of the floor material 20 in an L shape along the peripheral edge (four), and the lower plate 111b of the fixture 111 of the clamper 110 is adjacent to each other. It is possible to let in.

Next, a method of fixing the floor material 20 to the beam material 10 by using the fixture according to the present embodiment will be described.

First, in the factory, the adjusting plates 120 are attached to the four corners of the lower surface 20b of the floor material 20 (see FIG. 2), and then the floor material 20 is transported to the construction site.

Then, at the construction site, the fixture 111 is inserted into the four sides of the floor material 20 so that the lower plate 111b of the fixture 111 of the clamper 110 is positioned between the adjusting plates 120 attached to the floor material 20 adjacent to each other. It is attached by fitting with (see FIG. 3). At this time, the spacer 113, the nut 114, and the clamp plate 115 of the clamper 110 are removed from the screw shaft 112.

Next, after placing the floor material 20 so as to position the peripheral edge of the lower surface 20b of the floor material 20 on the flange portion 10a of the beam material 10 assembled in a square shape (well girder shape) in a plan view, the floor material 20 is placed. When the spacer 113 is inserted into the pair of screw shafts 112 and the base end side of the clamp plate 115 is inserted, the tip end side of the clamp plate 115 comes into contact with the lower surface of the flange portion 10a of the beam member 10.

Subsequently, when the nuts 114 are screwed and tightened to the pair of screw shafts 112, the tip end side of the clamp plate 115 presses the upper surface of the flange portion 10a of the beam member 10 against the lower surface 20b of the floor material 20. Clamp. As a result, the floor material 20 is fixed to the beam material 10 (see FIG. 4).

That is, the fixture according to the present embodiment is fixed by clamping the floor material 20 to the beam material 10.

Therefore, in the fixture according to the present embodiment, it is not necessary to align the beam member 10 at all, and it is sufficient to perform the steady alignment of the floor member 20 with respect to the beam member 10.

Therefore, according to the fixture according to the present embodiment, since the floor material 20 can be easily fixed to the beam material 10, the labor required for the fixing work can be significantly reduced, and the work efficiency is greatly improved. be able to.

Further, since the adjusting plate 120 having the same thickness as the lower plate 111b of the attachment 111 of the clamper 110 is attached to the lower surface 20b of the floor material 20, the attachment 111 of the clamper 110 is attached to the floor material 20. Since the floor material 20 can be closed so as to fill the gap between the lower surface 20b of the floor material 20 and the flange portion 10a of the beam material 10 caused by the attachment, the floor material 20 is more stable with respect to the beam material 10. Can be fixed.

<Second embodiment>
A second embodiment of the fixture according to the present invention will be described with reference to FIGS. 5-9. However, for the same parts as those in the above-described embodiment, the same reference numerals as those used in the description of the above-described embodiment will be used, and the description overlapping with the description in the above-described embodiment will be omitted.

As shown in FIGS. 5 to 9, the fixture according to the present embodiment is a fixture for fixing the floor material 20 to the beam material 10, and is provided on the lower surface of the floor material 20 to provide the floor material 20. The clamper 210 is provided as a clamping means for clamping the beam member 10 so as to press the beam member 10 against the lower surface of the beam member 10.

The clamper 210 is embedded in the lower surface 20b of the floor material 20 to form a screw hole 211a at an end located on the lower surface 20b side of the floor material 20, so that the screw shaft 211 and the female screw shaft 211 have a screw hole 211a. The bolt 212 to be screwed into the bolt 212, the tubular spacer 113 into which the bolt 212 is inserted, and the bolt 212 to be inserted so as to position the base end side between the head 212a and the spacer 113 of the bolt 212 to insert the tip side. It has a clamp plate 115 that comes into contact with the beam member 10.

The female screw member 211 is formed with a plurality of protrusions 211b on the outer peripheral surface on the end side located on the inner side of the floor material 20 to prevent the floor material 20 from coming out of the floor material 20 and rotating in the floor material 20. It is buried in pairs with the lower surface 20b of the floor material 20.

The bolts 212 are detachably screwed into the screw holes 211a of the pair of female screw shafts 211, respectively. The spacer 113 is coaxially inserted into each bolt 212 and is detachably inserted. The clamp plate 115 is a single member in which bolts 212 screwed into the screw holes 211a of the pair of female screw shafts 211 are detachably inserted into the base end side.

Next, a method of fixing the floor material 20 to the beam material 10 by using the fixture according to the present embodiment will be described.

First, in the factory, a pilot hole 20d having a diameter slightly smaller than the diameter of the female screw shaft 211 of the clamper 210 is formed at the specified locations on the four sides of the lower surface 20b of the floor material 20 (see FIG. 7), and then the floor. The material 20 is transported to the construction site.

Then, at the construction site, the female screw shaft 211 of the clamper 210 is mounted by driving it into the pilot hole 20d of the lower surface 20b of the floor material 20 so as to be embedded (see FIG. 8). At this time, the bolt 212, the spacer 113, and the clamp plate 115 of the clamper 210 are removed from the female screw shaft 211.

Next, after placing the floor material 20 so as to position the peripheral edge of the lower surface 20b of the floor material 20 on the flange portion 10a of the beam material 10 assembled in a square shape (well girder shape) in a plan view, the floor material 20 is placed. After inserting the bolt 212 into the base end side of the clamp plate 115, the spacer 113 is inserted into the bolt 212, and the bolt 212 is screwed into the screw hole 211a of the pair of female screw shafts 112. The tip side abuts on the lower surface of the flange portion 10a of the beam member 10.

Subsequently, when the bolts 212 are individually tightened, the tip end side of the clamp plate 115 clamps the upper surface of the flange portion 10a of the beam member 10 against the lower surface 20b of the floor member 20. As a result, the floor material 20 is fixed to the beam material 10 (see FIG. 9).

That is, the fixture according to the present embodiment is fixed by clamping the floor material 20 to the beam member 10 in the same manner as the fixture according to the above-described embodiment.

Therefore, in the fixture according to the present embodiment, as with the fixture according to the above-described embodiment, it is not necessary to align the beam member 10 at all, and the floor member 20 is stationary with respect to the beam member 10. All you have to do is align.

Therefore, according to the fixing tool according to the present embodiment, the floor material 20 can be easily fixed to the beam material 10 as in the fixing tool according to the above-described embodiment, so that the labor required for the fixing work is greatly reduced. It can be reduced and the work efficiency can be greatly improved.

Further, since the number of members can be reduced as compared with the fixture according to the above-described embodiment, the cost can be reduced as compared with the fixture according to the above-described embodiment.

<Other Embodiments>
In the first embodiment described above, in the factory, after the adjustment plates 120 are attached to the floor material 20, the floor material 20 is transported to the construction site, but as another embodiment, For example, in a factory, the floor material 20 may be transported to a construction site without attaching the adjusting plate 120 to the floor material 20, and then the adjusting plate 120 may be attached to the floor material 20 at the construction site. It is possible.

Further, in the first embodiment described above, the adjusting plate 120 having the same thickness as the lower plate 111b of the fixture 111 is attached to the peripheral edge of the lower surface 20b of the floor material 20, but other As an embodiment, the adjusting plate 120 may be omitted depending on, for example, the mounting position of the clamper 110 with respect to the floor material 20 (for example, mounting the clamper 110 at least near each corner of each side).

Further, in the first embodiment described above, the screw shafts 112 are provided in pairs (two) with the lower plate 111b of the fixture 111, but as another embodiment, for example, the screw shafts 112 are provided. It is also possible to provide one or three or more on the lower plate 111b of the fixture 111. However, if the screw shafts 112 are provided in pairs (two) with the lower plate 111b of the fixture 111 as in the first embodiment described above, the floor material 20 is fixed to the beam material 10. It is very preferable because it is possible to prevent the clamp plate 115 from turning at a low cost.

Further, in the second embodiment described above, the female screw shaft 211 is mounted by being embedded in the floor material 20 at the construction site, but as another embodiment, for example, in a factory. It is also possible to mount the female screw shaft 211 by driving it into the pilot hole 20d of the lower surface 20b of the floor material 20 so as to bury it, and then transport the floor material 20 to the construction site.

Further, in the second embodiment described above, the female screw shafts 211 are embedded in pairs (two) with the lower surface 20b of the floor material 20 to use two bolts 212, but other As an embodiment, for example, it is also possible to embed one or three or more female screw shafts 211 in the lower surface 20b of the floor material 20 so that one or three or more bolts 212 are used. However, as in the second embodiment described above, if the female screw shaft 211 is embedded (two) in pairs with the lower surface 20b of the floor material 20 and two bolts 212 are used, the beam It is very preferable because the clamp plate 115 can be prevented from turning at low cost when the floor material 20 is fixed to the material 10.

Since the fixing tool according to the present invention can easily fix the floor material to the beam material, it can be extremely usefully used in the construction industry.

10 Beam material 10a Flange part (rib part)
20 Floor material 20a Top surface 20b Bottom surface 20c Side surface 20d Pilot hole 21 Main body panel 22 Fireproof panel 23 Protective plate 110 Clamper 111 Mounting tool 111a Upper plate 111b Lower plate 111c Side plate 112 Screw shaft 113 Spacer 114 Nut 115 Clamp plate 120 Adjusting plate 210 Female thread shaft 211a Thread hole 211b Protrusion 212 Bolt 212a Head

Claims (7)

A fixture that fixes a slab-shaped flooring material to a beam material made of shaped steel.
A fixture provided on the lower surface of the floor material and provided with a clamping means for clamping the beam material so as to press the beam material against the lower surface of the floor material. In the fixture according to claim 1,
The clamping means
A fitting having a U-shaped cross section that fits on the side surface of the floor material so as to communicate between the upper surface and the lower surface of the floor material.
A screw shaft projecting from the lower part of the fitting to be fitted to the floor material,
A tubular spacer that is inserted into the screw shaft,
A nut screwed into the screw shaft and
A fixture characterized by having a clamp plate that is inserted into the screw shaft so as to position the base end side between the spacer and the nut so that the tip end side is brought into contact with the beam material. In the fixture according to claim 2,
The screw shafts of the clamping means are projected in pairs at the bottom of the fixture.
The spacer and the nut of the clamping means are provided on each of the screw shafts, respectively.
A fixture characterized in that the clamp plate of the clamp means is a single member whose base end side is inserted into the pair of screw shafts. In the fixture according to claim 2 or 3.
The fixture of the clamp means
An upper plate that contacts the upper surface of the floor material and
A lower plate that contacts the lower surface of the floor material and
A side plate that comes into contact with the side surface of the floor material and connects the upper plate and the lower plate is provided.
A fixing tool provided on the peripheral edge of the lower surface of the floor material and provided with an adjusting plate having the same thickness as the lower plate of the mounting tool of the clamping means. In the fixture according to claim 1,
The clamping means
Since it is embedded in the lower surface of the floor material and a screw hole is formed at the end located on the lower surface side of the floor material, the screw shaft and
A bolt screwed into the screw hole of the female screw shaft and
A tubular spacer into which the bolt is inserted and
Fixing characterized by having a clamp plate in which the bolt is inserted so as to position the base end side between the head of the bolt and the spacer so that the tip end side is brought into contact with the beam material. Ingredients. In the fixture according to claim 5,
The female screw shaft of the clamping means is embedded in a pair on the lower surface of the floor material.
The bolt and the spacer of the clamping means are provided on each of the female thread shafts, respectively.
A fixture characterized in that the clamp plate of the clamp means is a single member into which the bolts screwed into the pair of female screw shafts are inserted into the base end side. In the fixture according to claim 5 or 6.
The female screw shaft of the clamping means has a protrusion on the outer peripheral surface on the end side located on the inner side of the floor material to prevent the clamp means from coming out of the floor material and rotating in the floor material. A fixture that features.

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