JP3772758B2 - Column and beam corner connectors - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a column / beam corner coupler used in a simple assembly type structure such as a carport.
[0002]
[Prior art]
The carport is assembled by connecting structural members such as columns and beams formed of hollow aluminum shapes using metal fittings. The beam that supports the roof is usually supported in a cantilever manner on the column, and a great force is applied to the connecting portion between the column and the beam. Normally, a corner connector having a substantially L shape is used for this part, and each arm portion of the connector is inserted into the end of the column and the beam, and the column and the beam are fixed to the connector by bolts. .
[0003]
As described in Japanese Patent Laid-Open No. 10-61015, a conventional corner connector is welded by butting two cylindrical or cross-sectional members inserted into columns and beams so as to intersect each other. Was formed.
[0004]
[Problems to be solved by the invention]
In such a structure, in order to increase the strength of the connector, the thickness of both members had to be increased as a whole, and not only the weight increased, but the strength could not be increased efficiently.
[0005]
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a column / beam corner coupler that efficiently increases strength without wasting material.
[0006]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the column / beam corner coupler of the present invention is a single plate that is bent to form a column connecting portion, a corner portion, and a beam connecting portion integrally, and a single plate is bent. A column plate, a corner portion and a beam connecting portion formed integrally, a column side right side plate, a corner side right side plate and a beam side right side plate formed by welding, and a column side left side plate; The left side plate formed by welding the corner side left side plate and the beam side left side plate, and a reinforcing member, and the back plate, the abdomen plate, the right side plate, and the left side plate are welded to each other to form a hollow portion. The corner portion right side plate is thicker than the column side right side plate and the beam side right side plate, the corner portion left side plate is thicker than the column side left side plate and the beam side left side plate, and the reinforcing member is Back plate side end to back plate corner, abdomen side end to belly plate corner Wherein the s welded connection to is provided in the hollow portion.
[0007]
Since a downward load is applied exclusively to the beam side of the connector, it is effective to increase the thickness of the back plate and the abdomen to suppress the deformation of the connector due to this load. If the connector is structured as described above, the back plate and the abdominal plate can be intensively thickened, so that the strength can be efficiently increased while suppressing waste of material and increase in weight. Furthermore, the left side plate and the right side plate can be reliably prevented from being deformed in combination with the action of the reinforcing member by increasing only the thickness of the corner portion where stress is concentrated.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 4 is a front view of the carport, and FIG. 5 is a side view of the carport with a part of the roof cut away. In this carport, beams 14 and 14 are connected in a cantilevered manner to the upper ends of two pillars 13 and 13 that have their bases embedded in a foundation concrete 12, and are composed of a frame 15 made of aluminum and a resin panel 16. The arched roof 17 is placed and fixed on the beams 14 and 14. The pillars 13 and the beams 14 are made of extruded aluminum in the shape of square pipes, and the pillars and the beams are connected by a corner connector 18 as shown in FIGS.
[0009]
As shown in FIG. 2, the corner coupler 18 has a square pipe shape that is bent in an L shape. The corner connector 18 is a hollow portion at the base end side of the beam 14 and the column insertion portion 5 to be inserted into the hollow portion at the upper end of the column 13. The insertion part 6 to the beam to be inserted into the part and the corner part 7 connecting the column and the beam are integrally formed, and the inside is a hollow part 25. The corner coupler 18 firmly connects the column 13 and the beam 14 by inserting the column insertion portion 5 and the beam insertion portion 6 into the column 13 and the beam 14 and then fixing them with bolts 19. Is. The corner portion 7 is covered by a split corner portion cap 20.
[0010]
As shown in FIG. 1, the corner connector 18 is composed of a back plate 1 forming an outer surface, a belly plate 2 forming an inner surface, a right side plate 3 forming a right side, and a left side plate 4 forming a left side. Assembled by welding.
[0011]
The back plate 1 is formed by integrally bending a long and narrow single-piece steel plate in the middle in the length direction to form a column connecting portion 1a, a corner portion 1b, and a beam connecting portion 1c. Similarly, the abdomen 2 also has a column connecting portion 2a, a corner portion 2b, and a beam connecting portion 2c formed integrally. The side edge portion has a notch 22 into which a protrusion 21 provided around the left and right side plates 3 and 4 is fitted. The plate thickness of the back plate 1 and the abdominal plate 2 is 3.2 mm. The back plate 1 and the abdominal plate 2 are reinforced by welding a steel strip 23 along the longitudinal direction on the surface. After the band steel 23 is welded, screw holes (not shown) for the bolts 19 are formed in the column connecting portions 1a and 2a and the beam connecting portions 1c and 2c of the back plate 1 and the belly plate 2.
[0012]
The right side plate 3 is formed by connecting the column side right side plate 3a, the corner right side plate 3b, and the beam side right side plate 3c by welding. Similarly, the left side plate 4 is formed by connecting the column side left side plate 4a, the corner left side plate 4b, and the beam side left side plate 4c by welding. The column side right side plate 3a, the column side left side plate 4a, the beam side right side plate 3c, and the beam side left side plate 4c are made of steel plates having a thickness of 2.6 mm, and the corner right side plate 3b and the corner left side plate 4b are thick. A 4.5 mm steel plate is used. Since stress concentrates on the corner portion, if the thickness of the corner portions of the left and right side plates is increased in this way to prevent buckling, deformation of the connector can be effectively prevented. Moreover, the protrusion 21 is provided in the peripheral part joined to the back board 1 and the abdominal board 2 of the side plates 3 and 4 on either side with an appropriate space | interval. By fitting the projections 21 into the notches 22 of the back plate and the abdominal plate, the assembly of the present connecting device is facilitated, and an accurate assembly is possible.
[0013]
Furthermore, as shown in FIG. 3, a reinforcing member 11 is provided in the corner portion 7 of the connector. The reinforcing member 11 has a back plate side end welded to the back plate corner 1b and a belly plate side end welded to the belly plate corner 2b. Reinforcing ribs 24 are provided on both side edges of the reinforcing member 11 so as to prevent buckling of the reinforcing member 11. According to this reinforcing member, it is possible to reliably prevent the deformation of the corner portion 7 of the coupler in which stress is concentrated.
[0014]
【The invention's effect】
As described above, the column / beam corner connector according to the present invention has a structure in which the back plate, the abdomen plate, and the left and right side plates are assembled by welding, so the thickness of the portion necessary to increase the strength is concentrated. It is possible to increase the strength efficiently while suppressing waste of materials and increase in weight. Furthermore, the thickness of the corner portions of the left and right side plates is increased, and the reinforcing member is provided in the hollow corner portions, so that the deformation of the connector can be reliably prevented.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a column and beam corner connector according to the present invention.
FIG. 2 is a perspective view of a pillar-to-beam corner connector according to the present invention.
FIG. 3 is a side view showing a state in which a column and a beam are coupled by a column / beam corner coupler according to the present invention;
FIG. 4 is a front view of a carport using a column and beam corner connector according to the present invention.
FIG. 5 is a side view of the carport.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Back board 1a Back board pillar connection part 1b Back board corner part 1c Back board beam connection part 2 Abdominal board 2a Abdominal board column connection part 2b Abdominal board corner part 2c Abdominal board beam connection part 3 Right side board 3a Column side right side board 3b Corner Right side plate 3c Beam side right side plate 4 Left side plate 4a Column side left side plate 4b Corner left side plate 4c Beam side left side plate 11 Reinforcement member 13 Column 14 Beam 25 Hollow part

Claims (1)

A back plate in which a single plate is bent to integrally form a column connecting portion, a corner portion and a beam connecting portion; and a belly plate in which a single plate is bent to integrally form a column connecting portion, a corner portion and a beam connecting portion; A right side plate formed by welding and connecting a column side right side plate, a corner right side plate and a beam side right side plate, a left side plate formed by welding and connecting a column side left side plate, a corner side left side plate and a beam side left side plate; The back plate, the abdomen plate, the right side plate, and the left side plate are welded to each other to form a hollow portion. The corner right side plate is formed by the column side right side plate and the beam side right side plate. The corner left side plate is thicker than the column side left side plate and the beam side left side plate, and the reinforcing member has the back plate side end at the back plate corner and the belly plate side end at the belly plate. Columns and beams are characterized by being welded to the corners and provided in the hollows. Na connector.

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