JPH07197581A - Fixing device for roof structural material - Google Patents

Abstract

PURPOSE:To reliably and easily fix a roof structural material such as a rafter to an upper end part of a column or a beam by heightening joining strength of the column or the beam to a building. CONSTITUTION:A fixing device has a board 16 to be fixed by a bolt 15 to an upper end part of a column 2 or a beam 3 of a building 9 and standing-up parts 17 which are arranged on this board 16 in a standing-up shape so as to come into contact with one side surface or both side surfaces of a roof structural material such as a rafter 12 and have hole parts 21 for fixing tools such as nails 20 to fix this roof structural material. Thereby, the roof structural material such as the rafter 12 can be reliably and easily fixed to the upper end part of the column 2 or the beam 3 of the building 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing device for a roof structural material, and more particularly to a fixing device for a roof structural material such as a rafter which is fixed to the upper ends of columns or beams of a building.

[0002]

2. Description of the Related Art As a means for fixing a roof structural material to a structure of a building, for example, a rafter mounting metal fitting disclosed in Japanese Utility Model Laid-Open No. 63-1121 is known. This rafter mounting bracket can be inserted into and locked to a part of the roof beam,
The rafter receiving piece that supports the lower surface of the rafter and the two side pieces that sandwich both sides of the rafter are integrally formed.

Therefore, it is possible to easily attach a rafter, which is a wood-based roof structural material, to a roof beam, which is a steel-framed building structure, with this rafter mounting metal fitting.

[0004]

However, in the above-mentioned rafter mounting metal fitting, since it is connected to the roof beam by insertion locking, not only is the connection strength insufficient, but also the load of the roof is supported by the pillar. It was structurally ideal to receive but difficult to apply to the pillars.

The present invention has been made to solve the above-mentioned problems, and has a high coupling strength to a pillar or a beam of a building,
An object of the present invention is to provide a fixing device for a roof structural material that can securely and easily fix a roof structural material such as rafters to the upper ends of columns or beams.

[0006]

In order to achieve the above object, a fixing device for a roof structural material according to claim 1 is a board fixed to an upper end of a pillar of a building with a bolt, and a rafter on the board. Of the roof structure material, which is provided upright so as to face one side surface or both side surfaces of the roof structure material, and a standing piece portion having holes for fixtures such as nails for fixing the roof structure material. .

A fixing device for a roof structure according to a second aspect is based on the fixing device for a roof structure according to the first aspect, and has a positioning piece portion with which the substrate comes into contact with the side surface of the pillar. It is characterized by doing.

Further, the fixing device for a roof structure according to claim 3 is based on the fixing device for a roof structure according to claim 1, wherein the substrate is bridged between the upper ends of two adjacent columns. It is characterized by being fixed with a bolt.

[0009]

According to the fixing device for a roof structure according to the first aspect of the present invention, the substrate fixed to the upper end of the pillar of the building with bolts, and one or both side surfaces of the roof structure such as rafters on the substrate. Since it is provided so as to stand upright and has a standing piece having holes for fixtures such as nails for fixing the roof structure material, it has high bonding strength to the pillar of the building and the upper end of the pillar. It is possible to securely and easily fix the roof structural material such as rafters. Generally, in a building unit, a bolt hole for mounting an eyebolt for hoisting the building unit by a crane is provided in the upper end portion of the column, so that the board hole can be simply and firmly bolted by using this bolt hole. it can.

According to the second aspect of the present invention, in the fixing device for a roof structural material, since the substrate has a positioning piece portion that comes into contact with the side surface of the column, the substrate is bolted to the upper end portion of the column. It becomes easy to position the board when fixing with,
The rotation of the board due to the tightening of the bolt can be prevented, and the workability is improved.

Further, according to the third aspect of the present invention, in the fixing device for a roof structural material, since the substrate is suspended between the upper ends of two adjacent columns and fixed by bolts, the two adjacent columns are fixed. The horizontal joint used to connect the pillars is not required, and the cost can be reduced.

[0012]

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In FIG. 2, reference numeral 1 is a building unit that constitutes a steel-framed building structure, and this building unit 1 is laid in a square between pillars 2 arranged at four corners and upper ends of these pillars 2. A ceiling beam 3 and a floor beam 4 hung in a rectangular shape between the lower ends of the columns 2 constitute the main part. The pillar 2 is made of a hollow material having a rectangular cross section, and a rectangular pillar lid 5 that covers the open ends is fixed to the upper and lower ends by welding, and is used when the building unit 1 is lifted by a crane at the upper end of the pillar 2. A bolt hole 6 for attaching an eyebolt (not shown) is provided. As shown in FIG. 1, the bolt hole 6 is a hole 7 that is slightly larger than the eyebolt in the substantially central portion of the column cover 5.
And a nut 8 is attached to the back surface of the column cover 5 by welding so that the hole 7 is aligned with the shaft center.

A structure 10 of a building (unit building) 9 having a desired size and shape is formed by connecting the building units 1 in a horizontal direction or a vertical direction as shown in FIG.
The roof 11 is formed on the upper part of the structure 10 of this building 9.
Is installed. As the shape of this roof 11,
Various types of gables, barnhouses, etc. can be applied, and in the illustrated example, the dormitory type roof 11 is shown by an imaginary line. A roof structural material such as a rafter 12 or a climbing beam 13 is used for the roof 11, and a roof plate is attached to the upper surface of the roof structural material, and the roof material is attached via a waterproof sheet to form the roof 11.

In order to fix the eaves side of the roof structure material such as the rafters 12 and the climbing beams 13 to the upper ends of the pillars 2 on the peripheral side constituting the structure 10 of the building 9, shown in FIG. As described above, the fixing device 14 for the roof structural material is attached to the upper end of the pillar 2 with the bolt 15 having the same screw diameter as the eyebolt.
The fixing device 14 is a pair of a base plate 16 fixed to the upper end of the pillar 2 with a bolt 15, and a pair of base plates 16 standing upright on the base plate 16 so as to come into contact with both side surfaces of a roof structural member, for example, a rafter 12. The standing piece portions 17 and 17 of FIG.

The substrate 16 is formed of a metal plate such as a steel plate in the same shape as that of the upper end of the pillar 2, that is, in a rectangular shape, and a hole 18 for allowing the bolt 15 to pass through is provided at a substantially central portion thereof. In addition, a positioning piece portion 1 that abuts one side surface of the pillar 2, specifically, the outdoor side surface, on one side portion of the substrate 16.
9 is provided at a right angle downward by bending or the like.

The standing piece portions 17 are formed of a metal plate made of the same material as that of the substrate 16, and stand upright on the upper surface of the substrate 16 in parallel at a distance between both side faces of the rafter 12 so as to be integrally formed by welding. In addition, a plurality of holes 2 for passing nails 20 for fixing the rafters 12 and fixtures such as wood screws to the standing piece portion 17.
1 is formed.

The orientation of the standing piece 17, that is, the mounting angle α of the standing piece 17 with respect to the side of the substrate 16 as shown in FIG. 4, is appropriately set according to the orientation of the roof structural member. ing. For example, for the rafter 12, the attachment angle is α = 0 degrees, and for the climbing beam 13, for example, α =
It is about 45 degrees.

Next, the fixing device 14 configured as described above.
A procedure for fixing the roof structural material using will be described.
First, the board 16 portion of the fixing device 14 is placed on the upper end of the pillar 2, and the positioning piece 19 is brought into contact with the outdoor side surface of the pillar 2 for positioning, and the bolt 15 is inserted from the hole 18 of the board 16 to the pillar 2.
The substrate 16 is fixed by screwing it into the bolt hole 6. Since the board 16 is provided with the positioning piece portion 19 that is brought into contact with the outdoor side surface of the pillar 2, the board 16 is provided at the upper end portion of the pillar 2.
The board 16 can be easily positioned when fixing the board 16 with the bolt 15, and
Can be prevented from rotating and the workability is improved.

Next, a roof structural material such as rafter 12
Is inserted between the pair of standing piece portions 17 of the fixing device 14, and the rafter 12 is fixed by driving a fixing tool such as a nail 20 into the rafter 12 from the hole 21 of the standing piece portion 17. The climbing beam 13 may be similarly fixed. In this way, the roof structure fixing device 14 is fixed to the upper end of the pillar 2 of the building 9 with the bolts 15, and the substrate 16
The standing piece 17 is provided so as to stand on both sides of the roof structural material such as the rafter 12 and has a hole 21 for a fixture such as a nail for fixing the roof structural material. Therefore, the coupling strength of the building 9 to the pillar 2 is high, and the roof structural material such as the rafter 12 can be securely and easily fixed to the upper end portion of the pillar 2. Further, generally, in the building unit 1, since the bolt hole 6 for mounting the eyebolt for lifting the building unit 1 by the crane is provided in the upper end portion of the pillar 2, the board 16 can be simply used by using the bolt hole 6. Can be bolted to.

In the structure 10 of the building 9 constructed by connecting the building units 1, there is a portion where the pillars 2 are adjacent to each other (see FIG. 3). 14 may be attached individually, but as shown in FIG. 5, a common substrate 1 that is hung between the upper ends of both columns 2 and 2
A fixing device 14 having 6 may be attached.
The board 16 is formed in a horizontally long shape so as to straddle the upper ends of the adjacent columns 2 and 2, and the holes 1 for the bolts 15 are formed at both ends thereof.
8 and 18 are provided. It should be noted that a pair of standing piece portions 17, 17 are provided on the substrate 16 so as to be positioned at substantially the center thereof.
However, two pairs of standing piece portions 17 may be provided at both sides of each hole 18. According to such a fixing device 14, since the substrate 16 is hung between the upper ends of the two adjacent columns 2 and 2 and fixed by the bolts 15 and 15, the two adjacent columns 2 and 2 are fixed. The horizontal joint used to connect the two is unnecessary, and the cost can be reduced.

The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific structure is not limited to this embodiment, and there are design changes and the like within the scope not departing from the gist of the present invention. Also included in the present invention. For example, roof 11
May be a unitized one in advance,
Alternatively, the roof structure may be constructed on the structure 10 of the building 9 as in the conventional method. The building 9 is preferably a unit building, but various conventional buildings can be applied.

It is preferable in terms of strength to provide two standing piece portions 17, 17 on the substrate 16 so as to face both side surfaces of the roof structure material, but the standing piece portion 17 faces one side surface of the roof structure material. Thus, only one may be provided. Also,
It suffices that the positioning pieces 19 are provided on one side of the substrate 16, but a plurality of or a plurality of positioning pieces 19 may be provided continuously on the periphery of the substrate 16. Further, the fixing device 14 can be used not only by being fixed to the upper end portion of the pillar 2 but also by fixing it to the ceiling beam 3 with bolts and nuts to fix the rafters located on the ceiling beam 3. Is.

[0024]

In summary, according to the present invention, the following excellent effects can be obtained.

(1) According to the fixing device for a roof structural material according to the first aspect, a substrate fixed to the upper end of a pillar or a beam of a building with a bolt and a roof structural material such as rafters on the substrate. Since it is provided upright so as to abut the side surface or both side surfaces and the upright piece having holes for fixtures such as nails for fixing this roof structural material is provided, the connection strength to the pillar or beam of the building The roof structure material such as rafters can be securely and easily fixed to the upper ends of columns or beams. Generally, in a building unit, a bolt hole for mounting an eyebolt for lifting the building unit with a crane is provided at the upper end of the column, so that the board can be simply bolted by using this bolt hole.

(2) In the fixing device for a roof structure according to the second aspect of the present invention, since the substrate has a positioning piece that abuts on the side surface of the pillar or beam, the upper end of the pillar or beam is formed. The board can be easily positioned when the board is fixed to the portion with the bolt, the board can be prevented from rotating due to the tightening of the bolt, and the workability is improved.

(3) According to the fixing device for a roof structure according to the third aspect of the invention, since the substrate is hung between the upper ends of two adjacent columns and fixed by bolts, the two adjacent columns are fixed. The horizontal joints used to connect the columns are eliminated, and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a fixing device for a roof structure material according to the present invention.

FIG. 2 is a perspective view of a building unit.

FIG. 3 is a schematic plan view of a unit building.

FIG. 4 is a perspective view showing a modified example of the fixing device.

FIG. 5 is a perspective view showing another modification of the fixing device.

[Explanation of symbols]

 2 Pillars 3 Ceiling beams (beams) 9 Buildings 12 Rafters (roof structural materials) 13 Climbing beams (roof structural materials) 15 Bolts 16 Boards 17 Standing pieces 19 Positioning pieces 20 Nails (fixtures) 21 Holes

Claims (3)

[Claims] 1. A substrate fixed to the upper end of a pillar or a beam of a building with bolts, and a standing member provided on the substrate so as to abut one side surface or both side surfaces of a roof structure material such as rafters. An apparatus for fixing a roof structural material, comprising: a standing piece having a hole for a fixture for fixing the roof structural material. 2. The substrate has a positioning piece that abuts against a side surface of the pillar or beam.
Fixing device for the roof structural material described. 3. The fixing device for a roof structural material according to claim 1, wherein the substrate is hung between the upper ends of two adjacent columns and fixed by bolts.