JPH0419046Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a staircase member suitable for constructing stairs on a slope.

``Conventional technology'' When constructing power transmission towers in mountainous areas, hilly areas, etc., the slopes of mountains are cut down while natural forests are cut down, and work roads are created for the purpose of climbing and descending workers and transporting materials. After that, build stairs on the slope of the working road.

Generally, such workway stairs are constructed via the means described below.

One of these methods is to carve the slope of the work path into a stair-like shape, apply wood to the treads and kicks of the stairs, and secure this with stakes (Prior Art 1).

The other method is to make a reverse groove-shaped staircase member made of FRP, bury the front and back ends of the staircase in the ground, and secure it with fasteners (Prior Art 2).

``Problem to be solved by the invention'' In the case of the prior art 1 mentioned above, it is not desirable because it requires too much work such as digging the slope, laying wood, building, and driving piles.

In the case of the above-mentioned prior art 2, since the stair members are simply buried in the ground and fixed with fasteners, the construction of the stairs is easier than in the case of the prior art 1, but in the case of this stair member, the treads are free from rainwater and water. It is prone to slipping when wet with dew, and has other drawbacks such as poor drainage and heavy weight.

In view of these problems, the present invention aims to provide a stairway member for slopes that can easily construct highly safe stairs, and has excellent water permeability, drainage performance, and light weight.

``Means for Solving the Problems'' In order to achieve the intended purpose, the stair member for slopes according to the present invention includes a porous tread portion and a porous tread portion integrally formed downward from the front end of the tread portion. It comprises a front part and a porous rear part integrally formed downward from the rear end of the tread part, and is characterized in that the vertical dimension of the front part is larger than the vertical dimension of the rear part. shall be.

[Operation] In the case of the stair member according to the present invention, a desired staircase can be constructed by inserting and fixing the stair member into a slope at appropriate intervals.

In other words, since a relatively long front part and a relatively short rear part are integrally formed at both the front and rear ends of the tread, the tread can be held horizontally and the lower ends of the front and rear parts can be placed underground. You can create steps on a slope by simply inserting it into the holder.

Moreover, since the tread, front, and rear surfaces are all porous, they are not only lightweight;
It also has good water permeability and drainage, and in particular, the tread surface is dotted with porous edges, so it has a high level of anti-slip function.

"Example" Hereinafter, an example of the staircase member for sloped land according to the present invention will be described with reference to the drawings.

In FIG. 1, a stair member 1 is made of any metal material such as ordinary steel, stainless steel, or aluminum.

This stair member 1 includes a tread portion 2, a front portion 3, and a rear portion 4 that are integrally formed with each other.
protrudes downward from the front end of the tread section 2, and the rear section 4 protrudes downward from the rear end of the tread section 2, respectively, and the vertical dimension of the front section 3 in relation to the front section 3 and the rear section 4. is larger than the vertical dimension of the rear surface portion 4.

The tread portion 2, front portion 3, and rear portion 4 of the stair member 1 are all porous, having a mesh structure, a lattice structure, a perforated structure, or the like.

As a specific example, when the stair member 1 is made of expanded metal, the porous tread portion 2, front portion 3, and rear portion 4 are formed integrally with each other by bending the expanded metal.

Examples of expanded metals for staircase members include a grating type as shown in Figure 2a, a net type with steps at intersections as shown in Figure 2b, and a net type as shown in Figure 2c.

In FIG. 3, the metal stopper 5 has a head at the upper end and a sharp lower end, as shown.

This fastener 5 is used when fixing the stair member 1 underground.

When constructing stairs on a slope using the stair member 1 according to the present invention, as illustrated in FIG.
Hold the tread part 2 of the stair member 1 horizontally by applying the lower end of the rear part 4, and then insert the lower ends of the front part 3 and the rear part 4 into the ground using a manual hammer, mechanical hammer, etc. .

At this time, if necessary, the stopper 5 is driven into the ground from above the tread portion 2.

Thus, after fixing one stair member 1 to the slope S, it is only necessary to maintain the relative distance from that stair member 1 and fix another stair member 1 to the slope S by the same means as described above. , Hereafter, by repeating these steps, a required number of stairs are constructed on the slope S.

The stair member 1 can be applied not only to the above-mentioned sloping working path, but also to sloping areas such as promenades, parks, and green areas, and is particularly effective when the sloping area is unpaved.

``Effects of the Invention'' As explained above, the stair member for slopes according to the present invention has porous treads, front surfaces, and rear surfaces, and the vertical dimension of the front surface is larger than that of the rear surface. It is larger than the vertical dimension of .

Therefore, it is possible to construct a staircase on a slope by simply inserting the front and rear parts into the ground.Furthermore, the fasteners can be driven into any part of the stair member, making it easier to transport the stair member. lighter weight,
Water permeability, drainage, etc. can be ensured after stairs are constructed.

In particular, since the tread portion is dotted with porous edges, it also has a high degree of anti-slip function.

[Brief explanation of the drawing]

Figure 1 is a perspective view schematically showing one embodiment of the stair member of the present invention, Figures 2 a, b, and c are partially enlarged views of various expanded metals that are the constituent materials of the stair member of the present invention, and Figure 3 is FIG. 4 is a front view showing an example of a fastener for fixing the stair member of the present invention, and a sectional view schematically showing an example of the use of the stair member of the present invention. 1... Stair member, 2... Tread portion of the stair member, 3
...front part of the stair member, 4...rear part of the stair member.

Claims (1)

[Scope of utility model registration request] comprising a porous tread portion, a porous front portion integrally formed downward from the front end of the tread portion, and a porous rear portion integrally formed downward from the rear end of the tread portion, A staircase member for sloped land, characterized in that the vertical dimension of the front part is larger than the vertical dimension of the rear part.