JPH074242Y2 - Hollow material connecting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a hollow material connecting device in which connecting surfaces of hollow materials which are superposed on each other are fastened with bolts.

[Prior Art and Problems to be Solved] Conventionally, when hollow materials are connected to each other and fastened by bolts, through holes through which the bolts pass are provided on the connecting surfaces of both hollow materials, and further hollow materials are provided. A hole for bolt tightening is provided on the surface opposite to the connecting surface, and both hollow members are fastened by passing a bolt from the hole for bolt tightening to the through hole.

Here, for example, in the case where one of the hollow members to be connected is superposed on the other hollow member in an inclined manner, it is easy to cause a horizontal displacement due to various vibrations, etc. It is necessary to improve the horizontal connection strength between the hollow members, that is, the shear strength, by adding bolts.

However, in the above-mentioned conventional connection method, it is necessary to provide the through holes of the connecting surface of the hollow member with a certain interval or more in consideration of the space occupied by the heads of the bolts. Therefore, increase the number of extra bolts. I can't. When the number of bolts is increased, it is necessary to increase the number of bolt tightening holes facing the connecting surface. However, if a large number of bolt tightening holes are provided, the strength of the hollow material itself will be weakened. From this point too, the number of bolts cannot be increased too much.

Therefore, for these reasons, in the conventional connection method,
There is a drawback in that the number of connecting bolts cannot be increased and therefore the shear strength of the hollow material connecting portion cannot be improved.

[Means for Solving the Problems] The present invention for solving the above-mentioned conventional problems is an apparatus for connecting hollow materials, in which connecting surfaces of hollow materials that are directly or indirectly polymerized and connected are fastened by bolts. The inner plate of one of the hollow members is superposed with a connecting plate, and a plurality of penetrating rods are projectingly provided on the connecting plate, and a plurality of penetrating rods of the connecting plate are connected to the connecting faces of the hollow members. Each of the formed through-holes is penetrated, and a bolt is passed through the through-hole of the connecting surface of each hollow member, and the connecting surface is sandwiched by the bolts by screwing the bolt to the connecting plate. It is characterized by being bolted.

[Embodiment] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

1 to 8 show an embodiment in which the hollow material connecting device of the present invention is applied to the connection of a main beam and an auxiliary beam of a one-way roof carport.

First, the overall structure of the one-way roof carport will be described with reference to FIGS. 1 and 2. The single-sided roof carport is
A main beam 12 connected to columns 10 standing at a predetermined interval supports a roof 13 with a slight inclination from a horizontal state.

The column 10 is erected vertically as shown in the figure, and a main beam 12 is connected to the tip of the column 10 and extends in a horizontal direction with a slight inclination. An auxiliary beam 14 for reinforcing the main beam 12 is provided below the main beam 12. This auxiliary beam 14
The front end side is connected to the lower surface of the main beam 12 and the rear end side is connected to the support column 10 at a predetermined distance from the lower surface of the main beam 12 so as to be provided along the main beam 12 as illustrated.

The roof 13 supported by the main beam 12 includes a front frame 16 and a rear frame 1.
7. The roof panel 21 is stretched over a roof frame formed by framing the left and right side frames 18, 18, the intermediate horizontal rail 19 and the intermediate vertical rail 20.

The above single-sided roof carport has the roof 13 as the main beam as described above.
By being supported by 12, a space for accommodating an automobile is formed below the roof 13.

Each of the members forming the pillar 10, the main beam 12, the auxiliary beam 14, and the roof 13 is formed by extruding aluminum or the like.

Next, the hollow material connecting device according to the present embodiment, which is used for connecting the main beam 12 and the auxiliary beam 14 in the one-way roof carport, will be described in detail. 3 and 4 show the connecting portion between the main beam 12 and the auxiliary beam 14. Main beam 12 and auxiliary beam 14 as shown
Is formed of a hollow material having a rectangular cross section.

The connecting device of the present embodiment has a structure in which the connecting surfaces of the main beam 12 and the auxiliary beam 14 which are connected in a superposed manner via the spacer 2 are connected using the connecting plate 1.

The connecting plate 1 is made of a plate-shaped member having a width that can be held in the auxiliary beam 14, and is held inside the upper surface of the tip end portion which is the connecting surface of the auxiliary beam 14 as shown in the drawing. The connecting plate 1 is provided with a total of six penetrating rods 3 over the entire surface thereof. The penetrating rod 3 is formed by a screw rod as shown in the drawing, and unlike the so-called bolt or the like, it can be closely arranged without considering the space of the nut. These penetrating rods 3 are erected on the connecting plate 1 by screwing one end into the screw holes provided in the upper six places and crimping the screwed portion.
The length of the penetrating rod 3 is such that it extends through the connecting surface of the auxiliary beam 14, the connecting surface of the spacer 2 and the main beam 12 to the inside of the main beam 12.

Further, screw holes 1a, 1a for screwing fastening bolts 5 for fastening the connecting surfaces of the main beam 12 and the auxiliary beam 14 to each other are provided at two intermediate positions of the through rod 3 on the connecting plate 1. .

Further, on each connecting surface of the main beam 12 and the auxiliary beam 14, a total of eight through holes 6a, 6b are provided corresponding to the through rod 3 of the connecting plate 1 and the screw hole 1a. The through holes 6a and 6b are
It is formed in such a size that the penetrating rod 3 and the connecting bolt 5 can be inserted. As a result, as shown in FIG. 7, by inserting the through rod 3 into the through hole 6b from the inside of the auxiliary beam 14, the connecting plate 1 can be brought into close contact with the back side of the connecting surface. At that time, the screw holes 1a, 1a are also aligned with the through holes 6b.

Bolt tightening holes 7 for inserting the connecting bolts 5 from the outside and corresponding to the two through holes 6a through which the fastening bolts 5 are inserted and for performing the bolt tightening work on the upper surface facing the connecting surface of the main beam 12.
Is provided. In addition, the fastening bolt 5 is the main beam 12
It has a length sufficient to penetrate from the connecting surface of the auxiliary beam to the connecting surface of the auxiliary beam.

Spacer 2 interposed between the connecting surfaces of the main beam 12 and the auxiliary beam 14.
Is formed in a wedge shape corresponding to the angle formed between the connecting surfaces of the main beam 12 and the auxiliary beam 14 as shown in the figure. By this spacer 2, the connecting surfaces of the main beam 12 and the auxiliary beam 14 are connected to each other at a certain angle. Further, the spacer 2 is provided with holes 2a having substantially the same size corresponding to the eight through holes 6a and 6b of the main beam 12 and the auxiliary beam 14.

When the main beam 12 and the auxiliary beam 14 are connected by the above configuration, first, as shown in FIG. 7, the through rod 3 of the connecting plate 1 is inserted into the through hole 6b from the inside of the auxiliary beam 14, and the connecting plate is connected. Hold 1 in close contact with the back side of the connecting surface. Then, the through hole 3 protruding from the through hole 6b is provided with the hole 2a of the spacer 2.
The spacer 2 is laid on the connecting surface of the auxiliary beam 14 by passing it through.

Next, the penetrating rod 3 protruding in that state is inserted into the through hole 6a of the main beam 12.
And the connecting surfaces of the main beam 12 and the auxiliary beam 14 are connected to each other via the spacer 2. By connecting the main beam 12 and the auxiliary beam 14 via the spacer 2 in which the through rod 3 is erected in this way, the positions of the through holes 6a and 6b are regulated and aligned. After that, the fastening bolt 5 is inserted from the bolt fastening hole 7 on the upper surface of the main beam 12, and the fastening bolt 5 is inserted into the through holes 6a, 6
The connecting plate 1 is screwed into the screw hole 1a of the connecting plate 1 via b, whereby the connecting surfaces of the main beam 12 and the auxiliary beam 14 and the connecting plate 1 are bolted. As a result, the main beam 12 and the auxiliary beam 14 are
They are connected in the state shown in FIGS. 3 and 4.

In this embodiment, as shown in FIGS. 3 and 4, a connecting tool 23 for connecting the intermediate horizontal rail 19 of the roof 13 is attached to a portion of the upper surface of the main beam 12 where the bolt tightening hole 7 is located. The bolt tightening hole 7 is not exposed to the outside.

In the embodiment described above, the case where the fastening bolt 5 is screwed into the screw hole 1a of the connecting plate 1 and bolted is shown, but the present invention is not limited to this, and for example, as shown in FIG. 25 may be integrally fixed and provided, and the nut 26 may be screwed into the bolt 25 to tighten the bolt. Ordinary bolts and nuts may be used.

Further, the connection is not limited to the case where the spacers 2 are inclined and the connection is performed, and the connection surfaces may be directly connected to each other in a superposed manner without providing such a spacer, or a flat spacer may be used. An indirect polymerization link having a space may be performed. Further, in the example, the main beam of the carport
Although the present invention is applied to the connection between the auxiliary beam 12 and the auxiliary beam 14, the present invention is not limited to this and can be applied to the connection of all other hollow members.

Moreover, although the case where the number of the penetrating rods 3 of the connecting plate 1 is six is shown, the number of the penetrating rods 3 can be arbitrarily determined. Further, although the case where the penetrating rod 3 is formed by the screw rod is shown, a rod-shaped member may be fixed to the connecting plate 1. The cross-sectional shape is not limited to a circular shape, and may be, for example, a quadrangular shape. In that case, the shape of the through hole is set to a shape suitable for the through rod.

[Advantages of the Invention] As described above, according to the present invention, a plurality of through rods projecting from the connecting plate are passed through the through holes of the connecting surface of each hollow member, and then the connecting surfaces are connected to each other. Since each connecting surface is bolted by passing the bolt through and fixing it to the connecting plate with screws, it is possible to arrange multiple through rods in a narrow space because the space for the nut is not taken into consideration. There is an effect that the rod can improve the connection strength in the horizontal direction so that the connection has a higher shear strength.

Further, according to the present invention, since the plurality of through rods are respectively passed through the through holes of the connecting surfaces of the hollow member and the connecting faces are bolted, the through rods are provided to each of the hollow members. The position of the bolt through hole is restricted,
The through holes can be aligned to facilitate bolt penetration work.

[Brief description of drawings]

FIG. 1 is a perspective view of a one-way roof carport to which the hollow material connecting device of the present invention is applied, FIG. 2 is a side view of the one-way roof carport shown in FIG. 1, and FIG. 3 is a main beam and an auxiliary beam. FIG. 4 is a vertical sectional view of FIG. 3, FIG. 5 is a perspective view of a connecting plate of a connecting device according to one embodiment, and FIG. 6 is a perspective view of a spacer. FIG. 7 is an exploded view of the connecting portion shown in FIG. 3, and FIG. 8 is an exploded view showing another embodiment of the present invention. 1: Connection plate 1a: Screw hole 2: Spacer 3: Through rod 5: Connection bolt 6a, 6b: Through hole 7: Bolt tightening hole 12: Main beam 14: Auxiliary beam 25: Bolt 26: Nut

Claims (1)

[Scope of utility model registration request] 1. A hollow material connecting apparatus comprising the following requirements, wherein connecting surfaces of hollow materials which are directly or indirectly polymerized and connected are fastened by bolts. (A) A connecting plate is superposed on the inner surface of one hollow member, and a plurality of penetrating rods are projected on the connecting plate. (B) A plurality of through rods of the connecting plate are respectively passed through through holes formed in the connecting surface of each hollow member. (C) A bolt is passed through the through hole of the connecting surface of each hollow member, and the connecting surface is sandwiched between the bolts by fastening the bolt to the connecting plate with a bolt.