JPS6011224Y2 - handrail - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improvement of a handrail in which upper and lower rails are constructed between the pillars and a plurality of standers are arranged between the upper and lower posts. It provides a new structure to connect to.

Conventional handrails are assembled by welding the top end of each stand to the bottom of the upper rail, but this type of welding work is not easy;
In particular, there is a drawback that it takes time and effort to position each stand with respect to the upper rail.

The present invention has an extremely simple structure that makes it easy to position each stand with respect to the upper rail, and also provides a handrail with a structure that prevents each stand from rotating when the upper rail and each stand are tightened and fixed. The purpose is to provide.

The present invention will be specifically described below based on embodiments shown in the drawings.

The drawing shows a steel handrail, in which an upper rail 2 and a lower rail 3 are installed horizontally between the columns 1 and 1 installed vertically on the floor surface 10, and a plurality of rails are installed between the upper rail 2 and the lower rail 3. The standers 4 are arranged at equal intervals.

The upper crosspiece 2 and the lower crosspiece 3 are composed of metal strips 20.30 and covers 21°31 that are placed over the strips 20.30, respectively, and both ends of each strip 20.30 are attached to the top and bottom of the supports 1, It is fixed in place.

Each cover 21.31 has a groove 5 on its underside, which engages the strip 20, 30, so that the groove side walls 51, 51 and the strip 20,
30 with a fastener 6.

This fastener 6 has a fastening plate 62 arranged on a screw shaft 61 that is aligned in the longitudinal direction of the strip plate 20.30 and temporarily fixed by tightening. It is rotated by 9 degrees of force, and then the tightening plate 62 is tightened to connect the groove side wall 51.51 of the cover and the band plate 20.30.

Each stand 4 is a hollow frame with a circular or oval cross section, and the upper stand 2
is attached between the strip plate 20 and the cover 31 of the lower crosspiece 3.

Attachment holes 22.32 are formed at equal intervals in the strip plate 20 of the upper crosspiece 2 and the cover 31 of the lower crosspiece 3, and screw portions 71. Mounting hole 2
2 and 32, screw nuts 72 and 73, and attach stand 4.
Tighten and fix.

In the above-mentioned upper crosspiece 2, two protrusions 23 and 23 are formed protrudingly on the lower surface of the strip plate 20 at each position of the stand 4 by press working, and on the other hand, on the upper opening edge of each stand 4. Engagement recesses 41.41 are formed by pressing and recessing the outer peripheral surface at the corresponding positions of the protrusions 23.23, and when the upper end surface of each protrusion 4 is brought into contact with the lower surface of the band plate 20, Each protrusion 2
3 and 23 fit into the engagement recesses 41 and 41 and engage with the outer circumferential surface of the stand 4.

Further, on the upper surface of the cover 31 of the lower frame 3, circular or elliptical bulges 33 corresponding to the hollow cross-sectional shape of the stand 4 are formed protrudingly at the positions of the respective mounting holes 32, and the stand 4 has a lower end opening. It is fitted and connected to the base portion 33.

However, when connecting each stand 4 to the lower surface of the strip plate 20 of the upper crosspiece 2, the engagement recesses 41, 41 at the upper end of the stand 4 are connected to both protrusions 23, 2.
3 to position it, and then tighten the nuts 72 and 73.
Tighten and join.

After joining, the protrusions 23.23 on the upper rail 2 side and the bulging base portion 33 on the lower rail 3 side are engaged with the upper and lower ends of the stand 4, so
Movement of the standing child 4 is prevented.

As described above, in the present invention, at least two protrusions 23.
3 is provided, and on the other hand, an engagement recess 41° 41 is formed in the upper end opening edge of each stand 4, with the outer peripheral surface recessed inward to engage them. It becomes extremely easy to position each stand 4 with respect to the structure, and the assembly work can be simplified and made more efficient.

In addition, when the clamping between the stand 4 and the upper crosspiece 2 is fixed, the stand 4 is
It has excellent effects that are distantly related to the original purpose of the invention, such as preventing the rotation and wobbling of the handrail and maintaining the assembled form of the handrail.

[Brief explanation of the drawing]

Figure 1 is a front view of the handrail, Figure 2 is a sectional view taken along the line ■-■ in Figure 1, Figure 3 is a slope view with a part of the upper rail cut away, and Figure 4 is a front view of the handrail.
The figure is a sectional view taken along the line IV-IV in Figure 2, and Figure 5 is a cross-sectional view of the stand 4.
FIG. 1... Support column, 2... Upper crosspiece, 23...
...Protrusion, 3...Lower crosspiece, 4...Standard, 41...Engagement recess.

Claims (1)

[Scope of utility model registration request] In a handrail in which an upper rail 2 and a lower rail 3 are constructed between the pillars 1 and 1, and a plurality of standers 4 are arranged between the upper rail 2 and the lower rail 3,
The upper crosspiece 2 has a strip plate 20 fixed at both ends to the supports 1, 1.
and a cover 21 that is attached to the strip plate 20, and at least two protrusions 23° 23 are provided protruding from the lower surface of the strip plate 20 for each position of the studs, and each of the protrusions Engagement recesses 41, 41 are formed in the upper opening edge of each stand 4 at positions corresponding to the protrusions 23 and 23, and the outer peripheral surface is inwardly recessed. Abutting and engaging recesses 4
The protrusions 23 and 23 are engaged with the protrusions 1 and 41, the lower end of the protrusion 4 is brought into contact with the upper surface of the cover 31 of the lower crosspiece 3, and the bolt 7 passing through the interior of the protrusion 4 and the nuts 73 and 73 at both ends of the bolt are connected to the protrusion 4. Tighten the handrail firmly.