JPS62266211A - Hollow bar connector to crossed bar - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is applicable to cross beams, e.g. O relating to a device for connecting a hollow part, such as a horizontal beam, to a crosspiece (Background art) Conventionally, when connecting a horizontal beam to a vertical crosspiece, for example,
One side of the fixing bracket fixed inside the horizontal beam is screwed onto the vertical beam, and the other is a metal casting joint member with a hole for receiving the fitting at the end of the vertical beam or horizontal beam. However, the former is complicated to install, especially
If the connecting surfaces of the vertical bars are not flat, gaps may remain, and the latter requires the preparation of cast molded parts, which increases costs and tends to lack a sleek appearance. It was difficult to paint the same color as the crosspiece, and this part often stood out because it was a different color, so it was not necessarily compatible with the diversification of designs and the increasing quality of products.

(Object of the Invention) The present invention has been made in view of these drawbacks of the conventional hollow beam connecting devices to cross beams, and its purpose is to make the connecting parts and structure at the connecting portion inconspicuous. It is an object of the present invention to provide a device for connecting hollow beams to cross beams, which is advantageous in terms of cost and can be applied to both high-end products and popular products.

(Structure of the Invention) As a result of intensive research in accordance with the above object, the present inventor found that when obtaining a hollow crosspiece of, for example, 1.8 m from a long hollow molded material of, for example, 6 m, an end of approximately 60 mm (approximately 1'ffi) Focusing on the protrusion of the part, we decided to use this to connect the hollow crosspieces.
The present invention has been completed, that is, the present invention involves cutting a hollow crosspiece and a hollow joint cover from a hollow molded material, inserting a cross crosspiece into the middle part of the hollow joint cover, and forming a hollow joint cover. The gist is a device for connecting hollow beams to cross beams, which is characterized by having hollow beams facing each other at both ends of the inlet cover, and connecting these hollow beams flush with internal joint members fitted into each hollow portion. It is something to do.

In the present invention, "hollow" is not limited to a completely hollow shape such as a circular, square, or polygonal cross section, but is also defined as having three or more sides with a groove on one side or a part, such as a U-shape. Used to include substantial hollowness. Therefore, the through hole of the hollow joint cover may be the above-mentioned groove.

The present invention will be further explained below with reference to Examples.
A design panel made of cast aluminum (not shown) is fixed between the upper and lower horizontal beams at four corners and is used as a handrail or fence installed on a rising wall of a building or a low wall of an Efsteria (hereinafter referred to as a handrail). The present invention was implemented in the following.

1 in the figure shows this handrail, and this handrail 1 has a hollow circular upper crosspiece 2.2 and a lower crosspiece (or middle part) 3.3 connected to each other on the left and right sides of an intermediate vertical crosspiece 4.

All of these machines are made of extruded aluminum alloy shapes, and are surface-treated by, for example, anodizing, followed by coloring and acrylic melamine clear coating, or baking powder coating. is being carried out. On the other hand, 5.5 is a hollow circular upper crosspiece 2.2 or lower crosspiece 3,3
This hollow joint cover 5.5 is made by cutting the upper crosspiece 2°2 or the lower crosspieces 3, 3 from the hollow molded material that has been subjected to the surface treatment described above. A material obtained by cutting and forming at the same time as forming is used.

The hollow joint covers 5, 5 have a through hole 6 formed by press punching at the lower end or upper and lower ends thereof, and has a diameter corresponding to the outer diameter of the vertical bar 4.

As shown in FIG. 3, in the hollow joint covers 5, 5, at the upper end of the vertical beam 4, the end of the vertical beam 4 is inserted into the through hole 6 on one side, that is, the lower surface side, and the vertical beam 4 is closed. The end edge is received and installed on the inner surface of the other side, and on the other hand, in the middle part of the vertical bar 4, the vertical bar 4 is inserted through the upper and lower through holes 6, 6,
These are both fixed by countersunk screws 7.7.

Then, a hollow joint cover 5 into which this vertical bar 4 is inserted
, 5 has an internal joint material 8 in each hollow part 5a, 5a.
... is inserted, and the other end side of this internal joint material 8... is the hollow part 2as2as3a of the upper crosspiece 2.2 and the lower crosspieces 3, 3.

It is fitted into 3a. In other words, this inner diameter member 8 is made by cutting an extrusion molded member made of an aluminum alloy into short lengths and whose outer diameter is equal to the inner diameter of the hollow molded member. By,
The left and right upper crosspieces 2°2 and lower crosspieces 3, 3 are connected.

In addition, when inserting the hollow joint cover 5,
It is desirable that the upper crosspieces 2, 2 and lower crosspieces 3゜3, which are hollow crosspieces, are flush with each other, so careful attention should be paid to the outer diameter of the internal joint material 8. desirable. In addition, when the vertical bars 4... are erected and fixed, the interval between them is regulated, and the upper and lower bars 2 and 3 are integrally connected by the design panel, small vertical bars, etc. Although the connection can be completed only by this insertion, the internal joint material 8 and the upper crosspiece 2 or the lower crosspiece 3 may be fixed by countersunk screws from the bottom surface, for example, if necessary, including this case.

In the figure, reference numeral 9 indicates a cast vertical beam support to which the handrail 1 is fixed on the rising wall 10 in order to be erected thereon.

In this embodiment, the hollow crosspiece is used as the upper crosspiece and the lower crosspiece, and the cross crosspiece is used as the vertical crosspiece, but conversely, the hollow crosspiece can be used as the vertical crosspiece and connected to the upper crosspiece and the lower crosspiece by such a connecting device. ,
In addition, the external shape, cross-sectional shape, structure, material, etc. of the cross beam, hollow beam joint cover, internal joint material, etc. may be arbitrarily determined as long as they do not go against the gist of the invention, and are not limited to the above embodiments. do not have.

(Effects of the Invention) The present invention is constructed as described above, in which both the hollow crosspiece and the hollow joint cover are cut and formed from a hollow molded material, each hollow crosspiece is brought into contact with both ends of the hollow joint cover, and the upper inner joint material is Since the hollow crosspiece and the hollow joint cover are connected in such a way, only one thin line is exposed when they are in direct contact with each other, and the connected part can be finished beautifully and naturally without being noticeable. In addition, when the hollow molded materials are surface-treated, if they are obtained in the same lot, there will be no variation in color tone and appearance, and the conventional drawback of different colors at the connecting portions can be eliminated.

Moreover, since the connection is done by inserting the internal joint material,
The connection is also stable and can withstand long-term use.Therefore, the present invention provides a device for connecting hollow beams to cross beams that has both good appearance and connection stability and can be obtained at a relatively low cost. can be provided.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view of a connecting part, FIG. 2 is a perspective view showing a connected state, FIG. 3 is a sectional view taken along the line A-A in FIG. 1, and FIG. is a perspective view of the hollow joint cover.

Claims (3)

[Claims] (1) Cut and form a hollow part and a hollow joint cover from hollow molded material, insert a cross crosspiece into the middle part of the hollow joint cover, make each hollow crosspiece face against each other at both ends of the hollow joint cover, and insert these crosspieces. A device for connecting hollow beams to cross beams, characterized in that the hollow beams are connected flush with internal joint members fitted into each hollow portion. (2) The crosspiece according to claim 1, wherein the crosspiece end portion is inserted into the hollow joint cover through a through hole on one side, and the crosspiece end edge is received on the inner surface of the other side. Hollow crosspiece connection device to crosspiece. (3) A claim in which the insertion into the hollow joint cover is carried out through the through-holes on both sides at the intermediate portion of the cross-piece, and means for fixing the hollow joint cover to the cross-piece is provided. A device for connecting a hollow beam to a cross beam according to item 1.