JPH0344893Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is applicable to horizontal members such as caps and horizontal frames, and vertical members such as supports and braces for handrails installed on balconies, balconies, stairs, rooftops, etc. The present invention relates to a connecting device for connecting a hollow cylindrical horizontal member and a vertical member having a smaller diameter than the horizontal member.

(Prior art and its problems) Conventionally, when connecting a cylindrical cap and a stand, for example, the upper end surface of the stand is cut into a curved shape corresponding to the outer surface of the circular cap, While this curved end surface is engaged with the lower surface of the cap, the upper end of this bolt is attached to the cap while standing on the base and inserting a long bolt for tightening the brace into the frame. The cap and the stand are connected by protruding from the bolt holes, and screwing and tightening nuts into the protruding ends from the inside of the cap. However, according to this method, it took a lot of time to process the curved surface of the end face of the stanchion, and since the cap was not a so-called split type, it was difficult to insert and tighten the nut inside the stanchion. There was a problem in that the tightening bolts were long and the cost was high.

(Technical means for solving the problem) The present invention solves the above problems, and the technical means is to provide a shape corresponding to the cross-sectional shape of the vertical member 4 at a required part of the horizontal member 2. An opening 6 is provided, the end of the vertical member 4 is inserted into the opening 6, and the inserted end of the vertical member 4 is inserted into the horizontal member 2.
It is characterized in that it is integrally fixed to the transverse member 2 by a hard foamed plastic filler layer 8 that is injected and foamed inside.

(Example) Next, an example of the present invention will be described based on the drawings.

Figure 1 shows a curved handrail installed on a balcony, and in this figure 1 is the weir wall S.
The pillars erected above, 2 are Kasagi, 3 are the lower horizontal frames, 4
is a stand placed between these Kasagi 2 and the lower horizontal frame 3. FIG. 2 shows a connecting device between a cap 2 as a horizontal member and a brace 4 as a vertical member, as well as a connecting device between a lower horizontal frame 3 and a brace 4, also serving as a horizontal member. The cap 2 has a cylindrical shape made of extruded aluminum, and is connected to an aluminum support of the same length as the cap 2 via engagement grooves 2a, 2a formed over the entire length on both sides of the inner surface in the diametrical direction. A plate 5 is inserted and supported. The lower horizontal frame 3 and each frame 4 are also cylindrical and made of extruded aluminum. The cap 2 and the lower horizontal frame 3 are formed into a curved shape with a predetermined curvature by a pipe bender or the like.

First, when connecting the cap 2 and the stand 4, circular openings 6 through which the stand 4 can be inserted are provided at the required intervals in the length direction of the cap 2 on the lower side of the cap 2. In addition to arranging a plurality of them, circular insertion holes 7 of the same size are opened in the support plate 5 at positions corresponding to the openings 6 of the Kasagi 2, respectively,
The upper end of each holder 4 is inserted through the opening 6 of the cap 2 into the insertion hole 7 of the support plate 5, and the tip of the holder 4 is brought into contact with the inner surface of the holder 2. Then, a molten hard polyurethane resin mixed with the required foaming agent is injected under appropriate pressure through one or both open ends of the Kasagi 2, and the inside of the Kasagi 2 is poured over almost the entire length of the Kasagi 2. The space is filled almost completely, thereby forming a hard foamed plastic filler layer 8 inside the cap 2, and the hard foamed plastic filler layer 8 covers the upper end of each bar 4. The parts are integrally fixed to the Kasagi 2. In such a connecting device, since each stand 4 is inserted and supported through an insertion hole 7 provided in a support plate 5 in the cap 2, the cap 2
It becomes easy to position each brace 4 at right angles to the frame.

In addition, when connecting the lower horizontal frame 3 and the braces 4, a circular opening 9 through which the braces 4 can be inserted is provided in the upper side of the lower horizontal frame 3, as in the case of the cap 2. The lower end of each frame 4 is inserted into the opening 6 at a position corresponding to the opening 6, and the tip is brought into contact with the inner surface of the lower horizontal frame 3 as shown in Fig. 2. Then, similarly to the connection device between the Kasagi 2 and the frame 4, a hard polyurethane resin is injected from one or both open ends of the lower horizontal frame 3, so that the internal space of the lower horizontal frame 3 is almost completely filled. The foam is filled so that it is completely filled, thereby forming a hard foamed plastic filler layer 10 inside the lower horizontal frame 3, so that the lower end of each stand 4 is integrally fixed to the lower horizontal frame 3.

Although not shown, each support 1 and the cap 2 are also connected by a connecting device similar to the above-mentioned device. In other words, the upper end of the support 1 is connected to the Kasagi 2.
The support 1 is inserted into the inside of the cap 2 through an opening provided in the support plate 5 and an insertion hole opened in the support plate 5, and the insertion end of the support 1 is integrally connected to the cap 2 by a foamed plastic filler layer 8. Fixed. Although not shown, caps are attached to both open ends of the cap 2.

(Effects of the invention) According to the connecting device of the present invention, during the connecting operation, the end of the vertical member is inserted into the opening provided in the horizontal member, and the inside of the horizontal member is injected and filled with molten resin to form a foam. All you need to do is form a plastic filler layer.
Compared to conventional devices, the work can be done very easily and quickly, and there is no need for any extra parts such as bolts or nuts, so it is possible to significantly reduce the construction cost of handrails.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is an external perspective view of a curved handrail, and FIG. 2 is a sectional view of a connecting device applied to the handrail of FIG. 1. 2... Kasagi (horizontal member), 3... Lower horizontal frame (horizontal member), 4... Brass (vertical member), 6, 9... Circular opening, 8, 10... Foamed plastic filler layer .

Claims (1)

[Scope of utility model registration request] In a connecting device for connecting a hollow cylindrical horizontal member and a vertical member having a smaller diameter, an opening having a shape corresponding to the cross-sectional shape of the vertical member is provided at a required part of the horizontal member, and a vertical member is inserted through the opening into the vertical member. The end of the vertical member is inserted, and the inserted end of the vertical member is integrally fixed to the horizontal member by a layer of hard foamed plastic filler that is injected and foamed inside the horizontal member. A connecting device between the horizontal and vertical members of a handrail.