JPS5847147Y2 - handrail - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improvement of a handrail in which an upper rung and a lower rung are constructed between the supports and a plurality of standers are arranged between the upper and lower rungs. 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 provides a handrail with an extremely simple configuration that allows for easy positioning of each stand with respect to the upper rung, and that also prevents rotation of each stand when the upper rung and each stand are fixed with screws. The purpose is to

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 and 30, and covers 21.31 that are placed over the strips 20.30, respectively. It is fixed in place.

Each cover 21.31 has a groove 5 on its underside, which engages the strip 20.30 with the groove side wall 51.51 and the strip 20.30.
30 with a fastener 6.

This fastener 6 has a fastening plate 62 arranged on a screw shaft 61 which is aligned in the longitudinal direction of the band plates 20 and 30 and temporarily fixed by tightening. The groove side wall 51.51 of the cover and the strip plate 20.30 are connected by rotating the cover through 90 degrees by force and then tightening the clamping plate 62.

Each stand 4 is a hollow frame with a rectangular cross section, and the strip plate 2 of the upper crosspiece 2
0 and the cover 31 of the lower crosspiece 3.

Attachment holes 22 and 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 and 71 at both ends of the tightening shaft 7, which vertically penetrates the inside of the stand 4, are provided at equal intervals. Mounting hole 2
2. Insert into 32, screw in 72.73, and tighten and secure stand 4.

In the upper crosspiece 2, two protrusions 23, 23 are formed protrudingly from the lower surface of the strip plate 20 by press working at each position where the uprights 4 are disposed.

As shown in FIG. 4, the two protrusions 23, 23 are provided at two spiral portions located diagonally across the central mounting hole 22 among the four corners of the stand 4, and are located above the stand 4. Each protrusion 23.23 is formed to engage with the inner surface of the stand 4 when the end surface is placed against the lower surface of the strip 20.

Further, on the upper surface of the cover 31 of the lower crosspiece 3, a rectangular bulge joint 3 corresponding to the hollow cross-sectional shape of the stand 4 is provided at each mounting hole 32 position.
3 is formed protrudingly, and the lower end opening of the stand 4 is connected to the base part 33.
are mated and connected.

However, when connecting each stand 4 to the lower surface of the strip plate 20 of the upper crosspiece 2, the upper end opening of the stand 4 is engaged with both protrusions 23, 23 for positioning, and then the nuts 72, 73 are tightened. 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 end surfaces of the stand 4, so
Rotation of the stand 4 is prevented.

As described above, in the present invention, two protrusions 23.23 are integrally formed on the lower surface of the strip plate 20 constituting the upper crosspiece 2, corresponding to the diagonal vortex portion of the stand 4, and each protrusion 23.23 is Since it is engaged with the inner surface of the retracted part of the upper end surface of the stand 4, it is extremely easy to position each stand 4 with respect to the upper rail 2 when assembling the handrail, and also prevents the stand 4 from shifting during assembly. Work can be simplified and streamlined.

In addition, when screwing between the stand 4 and the upper rail 2, the rotation of the stand 4 is restricted by the protrusions 23, 23, and the assembled form of the handrail can be maintained.

Furthermore, since each protrusion 23, 23 is integrally formed on the lower surface of one strip plate 20, it can be formed very easily by, for example, press processing, which can contribute to improving the manufacturing efficiency of assembly components and reducing manufacturing costs. It produces excellent effects that are distantly related to the purpose of its invention.

[Brief explanation of the drawing]

Figure 1 is a front view of the handrail, Figure 2 is Figure 1 II-II
FIG. 3 is a partially broken perspective view of the upper crosspiece, and FIG. 4 is a cross-sectional view taken along line 2-IV in FIG. 2. 1... Support column, 2... Upper crosspiece, 23...
...Students, 3...Shimago, 4...Tachiko.

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 hollow standers 4 having a rectangular cross section are arranged between the upper rail 2 and the lower rail 3, the upper rail 2 has both ends. The strip plate 20 is fixedly fixed to the supports 1, 1, and the cover 21 is placed on the band plate 20. On the lower surface of the band plate 20, there is provided a stand 4 at each position where the stand 4 is disposed. Two protrusions 23.corresponding to the diagonal vortices of
23 are integrally formed, and the upper end surface of the stand 4 is brought into contact with the lower surface of the strip plate 20, each protrusion 23, 23 is engaged with the joint inner surface of the stand 4, and the stand 4 is tightened to the band plate 20. A handrail that is fastened with parts.