JPS58779B2 - Risers for installing non-slip devices on concrete stairs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a riser plate for attaching a non-slip device to a concrete staircase.

Conventionally, after constructing the framework of concrete staircases in buildings, pressure pipes were used to apply mortar or the like to the landing surfaces and treads, and then the stairs were finished using synthetic resin tiles, carpets, paints, and the like.

Non-slip devices can be attached to stair treads using adhesive or anchor welding, but due to inexperienced workers or poor adhesion,
Due to incomplete welding, the cleats do not conform to the treads, causing unpleasant noises when used on stairs, and in some cases, the cleats may peel off.

Furthermore, finishing the tread surface with mortar is a difficult task in complying with specified dimensions and adjusting the level, and dirt is likely to adhere to it.

Therefore, the installation of non-slip devices and the finishing of riser treads are
The long time required, combined with the lack of skilled pressure pipes, is a major obstacle in constructing concrete stairs.

Therefore, the present invention has a non-slip device mounting plate and a riser plate that are integrally formed and can be fixed to an anchor by welding.
The purpose is to easily construct stairs with non-slip devices.

Hereinafter, the present invention will be explained in detail based on illustrated embodiments.

The riser board 1 for mounting a non-slip device of the present invention is made by integrally forming a weldable metal plate such as an iron plate in an inverted shape, and is composed of a non-slip device mounting portion 2 and a riser portion 9. be done.

The mounting part 2 is folded with its rear edge as a bent part 3 to form a two-layer structure, and the front edge of the upper plate 4 is the front edge of the lower plate 5, that is, the bent part between the lower plate 5 and the riser 9. It protrudes slightly forward than 6.

Reference numeral 7 is a female threaded hole, which is used to attach a non-slip device to be described later. That is, the upper plate 4 and the lower plate 5 are appropriately penetrated.

Reference numeral 8 denotes a fixing piece, which is cut out in a U-shape at appropriate locations on the rear part of the lower plate 5, bent diagonally downward at the rear, and welded to the anchor.

Note that if the fixing piece 8 is further twisted by 90 degrees to make it vertical, it will be easier to weld to the anchor.

Note that the riser portion 9 has a length that allows it to be welded to an anchor under the lower tread surface.

Next, finishing of stairs using the riser according to the present invention will be explained.

First, the frame 11 of a commercially available anti-slip device 10 is fixed to the mounting portion 2 by screwing screws into the female screw holes 7, and then the tire 12 is fitted into the frame 11.

Next, among the upper and lower anchors that have been fixed to the building frame 13 in advance and projected to the finished part of the stairs, the fixing piece 8 is attached to the upper anchor 14, the riser part 9 is attached to the lower anchor 14', and the riser height is adjusted and welded. Fix it.

After pouring mortar 15 between the riser board 1 fixed to the anchor and the frame 13 and adjusting the level of the upper and lower treads, finishing material 16 such as tiles or carpets is finally fixed to the riser board and the upper and lower treads.

The present invention has the following advantages due to the above-described configuration.

(1) Installation of anti-slip devices and riser construction are not required, and level adjustment and riser height adjustment are easy, so no skill is required and the construction period can be shortened.

(2) Since the riser is welded and fixed to the anchor,
Non-slip devices and risers will not peel off.

(3) Since the non-slip device that receives the most force is supported by the mounting portion formed by bending two layers, the riser does not deform, and therefore there is no risk of the corner of the staircase being damaged.

(4) Since the front edge of the upper plate 4 of the mounting plate is made to protrude from the bent part 6 of the lower plate 5, it is easy to apply the finishing material to the riser, and moreover, sewage can be washed away from the riser and the finish. There is no risk of it entering between the material and the material.

(5) The work of the risers is easy and inexpensive iron plates can be used, resulting in low cost.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway plan view, FIG. 2 is a bottom view, and FIG. 3 is a side sectional view showing the state of implementation. 1...Riser board, 2...Mounting part, 3...
...Bent part, 4...Top plate, 5...
Lower plate, 6...Bending part, 7...Female screw hole, 8...Fixing piece, 9...Riser part, 10
...Slip device, 14.14'...Anchor.

Claims (1)

[Claims] 1 The mounting part 2, which has a plurality of female screw holes 7 for mounting the frame 11 of the anti-slip device 10 and has a double rear edge as the bent part 3, and the riser part 9 are made of a weldable metal plate. It is integrally formed in an inverted shape, the front edge of the upper mounting plate 4 slightly protrudes from the bending part 6 of the lower plate 5, and the lower plate 5 is bent diagonally downward by cutting out multiple points at the rear of the lower plate 5. Fixed piece 8 that can be welded to the anchor 14
A riser plate for attaching a non-slip device to a concrete staircase, in which a riser part 9 is formed to a length that can be welded to an anchor 14' under a lower tread.