JP3085804B2 - Support mounting structure for stair railing - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a column mounting structure for a stair railing.

[0002]

2. Description of the Related Art Conventionally, there is a folded stair as described in Japanese Patent Publication No. 49-43411. In such a folded staircase, the lower end of the pillar for the handrail is attached between the slab of the lower staircase and the slab of the upper staircase at the folded part of the folded staircase as a pillar mounting structure for the staircase handrail. ,
The handrail is attached to the middle or upper end of the handrail support.

[0003]

However, in the prior art, the vertical accuracy of the lower girder of the lower stairs and the upper girder of the upper girder to which the lower end of the handrail support is attached are not uniform, and the support is vertically extended. There are difficulties to install. For this reason, handrail materials (lumbar wall boards, etc.) supported by these columns
It is difficult to secure the mounting position accuracy of the device.

According to the present invention, when mounting the lower end of a handrail support between the lower girder of the lower stairs and the upper girder of the upper stair, the mounting position of the support can be adjusted, and the mounting position accuracy of the handrail material is ensured. The purpose is to do.

[0005]

SUMMARY OF THE INVENTION According to the present invention, there is provided a stair handrail support for mounting a lower end of a handrail support between a sash of a lower stair and a spar of an upper stair at a folded portion of a folded stair. In the mounting structure, one point at the lower end of the post is attached to the lower staircase girder by a first fixture, and another point at the lower end of the support is attached to the upper staircase girder by a second fixture. At least one of the first and second mounting tools is provided with adjusting means for adjusting the mounting position of the support to the slab beam in a direction perpendicular to the mounting surface of the slab beam. It was done.

[0006]

According to the present invention, the following operations are provided. The mounting position of the handrail support can be adjusted by adjusting means provided on at least one of the first and second mounting tools connected to the lower end of the support. At this time, since the adjustment of the mounting position of the handrail support is performed by the adjusting means provided on the mounting tool for mounting the support on the lower girder of the lower stair and the upper stair, the mounting of the support and the position adjustment can be performed simultaneously. The adjustment mechanism and the adjustment work can be simplified.

[0007] As described above, the handrail material is mounted on the post whose position is adjusted, and the mounting position accuracy of the handrail material can be ensured.

[0008]

FIG. 1 is a schematic diagram showing a folded staircase to which the present invention is applied, FIG. 2 is a schematic diagram showing an attached state of a handrail support,
FIG. 3 is a schematic view showing a mounting posture of a handrail support, and FIG. 4 is a schematic view showing an example of a support mounting structure of the present invention.

As shown in FIG. 1, the folding stairs 10 are composed of a plurality of stairs 11, 12, 13,... Which are folded in a zigzag manner from the lower floor to the upper floor.
Each of the stairs 11 to 13 is provided with a step board 15 between a pair of left and right girders 14.

The folded staircase 10 comprises: (a) a lower end portion and an upper end portion of a long handrail support column 16 on each of the slab girder 14 of the staircase 11 and the slab girder 14 of the staircase 13 which form an upward slope in the same direction And (b) a short section between the slab girder 14 of the lower staircase 11 and the slab girder 14 of the upper staircase 12 at the folded portion from the staircase 11 to the staircase 12. Attach the lower end of the handrail support 17, and (c) at the turn-back portion from the stairs 12 to the stairs 13, between the slab girder 14 of the lower stairs 12 and the slab 14 of the upper stairs 13 , Short handrail support 1
8 is attached to the lower end. At this time, each support 16, 1
Reference numerals 7 and 18 are attached to the respective girders 14 with a handrail member 19 (a waist wall board) interposed therebetween at a mounting portion for the girders 14.

[0011] As shown in FIG.
Are supported by both ends of the upper and lower ends of the slabs 14 of the stairs 11 and 13, respectively,
The handrail member 19 and the slab girder 14 are supported only on one side of the mounting surface 14A without any portion sandwiched therebetween. Therefore, the mounting position of the long strut 17 in the folded staircase 10 is easily and stably secured.

On the other hand, since the short struts 17 and 18 are provided at the folded portions of the folded stairs 10 as described above, only the other ends are cantilevered by the slab beams 14 of the stairs 11, 12 and 13. The handrail member 19 and the sash 14 are supported on both of the mounting surfaces 14A and 14B between the sashes 14 on both sides (see FIG. 2). For this reason, it is not easy to stably secure the mounting positions of the short columns 17 and 18 in the folded stairs 10, and the columns 17 and 18 need to be aligned with the adjacent columns 17. FIG.
Are the girder 14 of the stair 11 and the girder 14 of the stair 12
When the degree of parallelism is poor, the position of the column 17 that is cantilevered between the two becomes unstable in the direction of arrow A (the direction orthogonal to the mounting surface of the double-sided girder 14), and
This indicates that the mounting position accuracy of the handrail material 19 supported by each of A and 14B becomes unstable.

Therefore, in the present invention, the short column 1
The mounting structure of 7, 18 is as follows. Since the mounting structure of the support 17 and the support 18 is the same, the support 17
Will be described only.

The support 17 is attached at one point at the lower end to the slab 14 of the stairs 11 which is the lower staircase by the first fixture 21, and at another point at the lower end by the second fixture 22. It is attached to the slab 14 of the stairs 12 which is the upper stairs.

The first mounting member 21 includes a back nut 23 welded to the mounting portion 17A of the column 17 and a screw hole 24 provided in the saspar girder 14 of the stair 11 while being screwed to the back nut 23. And a fastening nut 26 which is screwed to the stud bolt 25 and clamps the mounting portion 17A of the support 17 between the stud bolt 25 and the back nut 23. The first fixture 21 includes a back nut 23.
By adjusting the fastening position of the support 17 with the fastening nut 26 and the fastening nut 26, the mounting position of the support 17 with respect to the girders 14 can be adjusted in the direction orthogonal to the mounting surface 14A of the girders 14. That is, the back nut 23, the stud bolt 25, and the fastening nut 26 constitute an adjusting means provided in the first fixture 21.

The second mounting member 22 includes a mounting bolt 28 that is screwed into a screw hole 27 provided in the slab 14 of the staircase 12, and a portion between the support 17 and the slab 14 around the mounting bolt 28. And a spacer 29 interposed therebetween.

The operation of this embodiment will be described below. The mounting position of the handrail support 17 (same for 18) is
7, the first and second fittings 21, 2 connected to the lower end of
2 can be adjusted by adjusting means (the back nut 23, the stud bolt 25, and the fastening nut 26) provided on one of the two. At this time, adjustment of the mounting position of the handrail support 17 is performed by adjusting means provided on a mounting tool 21 for mounting the support 17 to the slab girder 14 of the lower stair 11 and the upper stair 12. The adjustment can be performed simultaneously, and the adjustment mechanism and the adjustment work can be simplified.

As described above, the handrail member 19 is attached to the post 17 whose position has been adjusted.
Can secure the mounting position accuracy.

In the practice of the present invention, the handrail material is not a waist wall board sandwiched between the slab and the support, but may be a handrail bar supported at the upper end or the middle of the support. good.

In the embodiment of the present invention, the adjusting means may be provided on both the first and second attachments.

[0021]

As described above, according to the present invention, when mounting the lower end of the handrail support between the lower staircase spar and the upper staircase spar, the mounting position of the support can be adjusted. The positioning accuracy of the handrail material can be ensured.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a folded staircase to which the present invention is applied.

FIG. 2 is a schematic diagram showing an attached state of a handrail support.

FIG. 3 is a schematic view showing a mounting posture of a handrail support.

FIG. 4 is a schematic view showing an example of a column mounting structure of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Folding stairs 11, 12, 13 Stairs 14 Sasara girder 17 Prop 19 Handrail material 21 First mounting tool 22 Second mounting tool 23 Back nut 25 Stud bolt 26 Fastening nut

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) E04F 11/18

Claims (1)

(57) [Claims] 1. A stair handrail support column mounting structure for mounting a lower end of a handrail support column between a slab beam of a lower staircase and a slab beam of an upper staircase at a folded portion of the folded staircase. When one point of the part is attached to the lower staircase girder by the first fixture and the other point of the lower end of the column is attached to the upper staircase girder by the second fixture, (2) at least one of the two mounting tools is provided with an adjusting means for adjusting a mounting position of the strut with respect to the slab girder in a direction orthogonal to a mounting surface of the slab girder; Mounting structure.