JPS5847047Y2 - Mounting structure of baluster on high railing - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a mounting structure for a baluster installed between a top rail and a bottom rail of a handrail installed on roads, bridges, etc.

Conventionally, when balusters are installed between the upper and lower rails of a handrail, in addition to the long bolts that pass through the axial center of the balusters, the balusters are also elongated due to pressing force due to collisions from diagonal sides, etc. To prevent rotation around the bolt,
As shown in FIG. 2, the baluster was fixed by providing a plurality of screw receivers and screwing them to the upper and lower rails using screws.

However, the work of individually securing a large number of balusters with screws greatly increased the number of man-hours on site, and the result was not sufficient in terms of strength.

The purpose of this invention is to reduce the number of assembly steps and to provide sufficient strength according to the requirements of the baluster.

Embodiments will be described in detail below with reference to the drawings.

Fig. 1 shows the front view of the balustrade, and Fig. 2 is a cross-sectional view of a baluster erected by the conventional method.

FIG. 3A is an exploded perspective view of a ballast installed according to the present invention.

The opening in FIG. 3 is a sectional view taken along the line III--III in FIG. 5.

Figure 4 A2 shows a different embodiment of the baluster installation.

Figure 5 is a partially cutaway front view of the support column in Figure 1, Figure 6A is a side sectional view taken from arrows A to A in Figure 5, and the opening in Figure 6 is also a side view from R to R. FIG.

In the figure, a support 1 is erected on a road 4 by a conventional method, and a top rail 2 and a bottom rail 3 are fixed to the support as shown in FIGS. 5 and 6, which will be described later.

In Fig. 3 A and the opening, 5 is a baluster, and a guide portion 6 is provided approximately at the axial center of the baluster to facilitate insertion of a long bolt passing through it in the vertical direction and to provide a steady rest after installation. It is being

In addition, a notch 8 is provided on the upper end surface of the ballast to engage with two protrusions 7 provided parallel to the lower end surface of the top rail 2.
and 8' are provided, and 8, 8 and 8', 8' are parallel to each other.

Furthermore, a notch 10 is provided on the lower end surface of the baluster for fitting with a single protrusion 9 provided in the longitudinal direction on the upper surface of the bottom rail 3.

The ballast has a hollow oval cross-section and is made of aluminum alloy.

Reference numeral 2 designates a top rail, which has a substantially rectangular cross-sectional shape, and has an opening 12 formed in its lower surface with an opening 11 extending in the longitudinal direction.

The opening 11 has sufficient dimensions to insert a long bolt, which will be described later, and a pair of flanges 13 forming the opening support a baluster mounting seat plate 14.

Reference numeral 14 designates a baluster mounting seat plate, which is shaped like an elongated plate and has two parallel protrusions 15 on its upper surface. The width of the elongated plate is such that it is inscribed in the pocket 12 provided on the lower surface of the top rail.

Therefore, in the baluster installation work, tightening with long bolts eliminates any idling, making installation extremely easy.

3 is a bottom rail with a roughly rectangular cross section and has a protrusion 9 on the upper surface for fitting into the notch 10 of the baluster 5, as described above, to accommodate the pitch of the baluster installation. A hole is drilled for the long bolt to pass through.

A pair of clamping bodies 17 for clamping an L-shaped joint 16 for attaching the bottom rail 3 to the support column 1 are suspended from the lower surface on both sides.

It should be noted that 18 in the opening of Fig. 6 is also a joint for attaching the bottom rail.

Reference numeral 19 is a long bolt, and in this embodiment, a nut 20 is screwed onto the upper end of the bolt and then welded and fixed by spot welding or the like.

The required number of long bolts 19 passed through the respective holes previously drilled in the order of the baluster mounting seat plate 14, the baluster guide part 6, and the pommel rail 3, as shown in Fig. 3A. After that, the lower ends of the long bolts are temporarily fastened with nuts 20, and the baluster mounting seat plate is inserted into the top rail 12 from the side.

After the -span baluster is suspended from the top rail in the manner described above, the nut 20 at the lower end of the bottom rail, which was previously temporarily fastened, is further tightened to fix the baluster between the upper and lower rails.

In this case, as mentioned above, the baluster is not only firmly fixed at its axial center by long bolts, but also the notches 8 and 8' at the upper end fit into the protrusion 7 of the top rail, and the notch at the lower end engages with the protrusion 7 of the top rail. 10, it fits with the protrusion 9 of the bottom rail, so there is no need for the long bolt to rotate in the center even under diagonal and lateral pressure, and the individual balusters can be prevented from rotating with screws as in the conventional method. This greatly reduces the number of man-hours and improves the strength after completion.

Rather, productivity can be improved by assembling and installing each span at a factory and transporting it to the site, where the top rail and bottom rail are attached to the supports as shown in Figures 5 and 6. It is preferable in

For on-site installation, the top rail 2 is fixed by using the sleeve 21 and passing through the column with bolts and nuts 22 as shown in FIG. 6A.

The bottom rail 3 is tightened and fixed with bolts and nuts 22 in a conventional manner using the aforementioned mounting joints 16 and 18.

Figure 4 shows a different embodiment of mounting the baluster, in which the notches 8 and 10 in which the baluster fits with the upper and lower rails are made larger in case the baluster is large or intended for highways. The opening is a perspective view of the ballast.

In this embodiment, the concave-convex fitting is formed by forming a concave portion in the baluster, but convex portions may be used instead, and the shape of the concave-convex portion is not restricted as long as it serves as a rotation stopper.

The size and number of stationery can be determined depending on the overall length of the baluster and the details, so it not only contributes to a reduction in man-hours compared to conventional screw fixing, but also has an extremely stable and durable mounting structure. .

In addition, if the main structural members, the top rail 2, baluster mounting seat plate 14, baluster 5, and bottom rail 3, are all made of aluminum alloy extrusion and anodized, they can be made lightweight and corrosion resistant. We can provide excellent balustrades to customers.

[Brief Description of the Drawings] Figure 1 is a front view of the balustrade, and Figure 2 is a cross-sectional view of a conventional baluster. FIG. 3A is an exploded perspective view of a baluster erected according to the present invention, and the opening in FIG. 3 is a side sectional view taken from III to III in FIG. 1. Cross-sectional view of the beam side A different embodiment of the baluster mounting structure, and a perspective end view of the baluster. Figure 5 is a partially cutaway front view of the support column in Figure 1;
Figure A is a sectional side view from A to A in FIG. 5, and Figure 6 is a side sectional view from A to B in FIG. 5. 1... Support column, 2... Top rail, 3
... Bottom rail, 5 ... Baluster, 6 ... Guide section, 7 ... Protrusion, 8,
8'...Notch, 9...Protrusion, 10...
...Notch, 11...Opening, 12...
・Kaisato, 14...Mounting seat plate, 15...
Projection, 19...Long bolt.

Claims (3)

[Scope of utility model registration request] (1) A baluster is provided with a guide portion for a long bolt that penetrates in the vertical direction approximately at the axial center, and has at least one concave portion or convex portion on the upper and lower end surfaces, and has a concave portion on the lower surface. Or a baluster mounting structure in which a top rail having a convex portion and a bottom rail having a concave or convex portion on the upper surface are fitted into each other and fastened together with long bolts. (2) The baluster according to claim 1, wherein recesses are provided on the upper and lower end surfaces of the baluster 5, and convex portions are provided on the lower surface of the top rail 2 and the upper surface of the bottom rail 3. mounting structure. (3) Utility model registration claim 1, in which the long bolt head is inserted into the pocket 12 on the bottom surface of the top rail through the baluster mounting seat plate 14, and the baluster 5 is tightened and fixed with the long bolt 19. Balaster mounting structure described in (1).