JPH0455053Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to construction work in which stairs are installed on slopes such as mountain roads in civil engineering work.

(Conventional technology) In recent years, industry has become more and more popular, and as land development progresses, it has become necessary for a large number of people to enter and exit mountain roads that were previously not frequented by people. For example, when constructing power transmission towers or patrolling power transmission towers, people may enter mountainsides where there are no mountain roads even if a mountain road is built.

For a long time, people used to make stairs on mountain roads by scraping the ground and arranging stones, or by making stairs with concrete, but all of these methods require a lot of labor because they scrape the ground, so they are not used as often. In places where it is not frequented often, it becomes an excessive amount of equipment, and in places where a simple staircase is desired, in recent years, simple stairs made of waste plastic have been installed as a simple staircase that does not scrape the ground.
It is light to carry, easy to construct, inexpensive, and is used as a reliable staircase.

However, with the simple stairs currently in use,
Since the horizontal and vertical parts are integrally molded and the slope of the stairs is fixed as shown in Figure 7, it is difficult to keep up with the changes in the slope. A variety of materials must be prepared in advance, including those for 45° and 45°, and the slope of the site must also be surveyed in preparation for the delivery of materials, making the setup complicated. Furthermore, the simple stairs that have been used traditionally are: 1
Each tier is independent, so each tier is fixed with an anchor, and the connections between the other tiers are just screw nails, as shown in Figure 8, so they are heavy and expensive to transport, making construction difficult. However, it is not safe as it requires a large number of time-consuming anchors, and it can only be installed immediately because the installation position with other tiers is fixed, so if the road curves left or right, it is not safe. There was also the drawback of not being able to follow along.

(Problems to be solved by the invention) The invention is lightweight, easy to assemble, and structurally strong, and also uses only one type of set member to maintain the horizontal part no matter how the inclination of the slope changes. The objective is to provide stairs that maintain levelness and that can be followed even when the road curves left and right.

(Means for Solving the Problem) In order to solve the above problems, the method adopted by the present invention is that one stage consists of a horizontal plate and a vertical plate, and the joint between the horizontal plate and the vertical plate is in the shape of a chopstick. , the horizontal plate has
A long hole is provided to bend the stairs left and right,
Furthermore, the angle of inclination of the stairs is set using a fixing device, and when connecting to another step, align the hole in the chopping board attached to the upper vertical board with the elongated hole provided in the lower horizontal board, and use bolts, nuts, or pins. This is a simple staircase made by connecting the lower horizontal board and the upper vertical board by inserting and fixing them.

(Function) The first step from the bottom of the slope is fixed to the ground 17 with the horizontal plate 1 with stakes 16, and then the second step is connected to the first step according to the left and right curves of the slope. After that, determine the horizontal level of the second level horizontal plate 1, and then assemble the third level in the same process as the second level, and then assemble the fourth level.
Stack them up one by one, starting with the fifth layer.

(Example) An example will be described below based on the drawings. As shown in Fig. 1, the simple staircase of the present invention consists of a horizontal plate 1 and a vertical plate 2. As shown in Fig. 3, the plate 1 and the vertical plate 2 have a connecting pin hole 11 through which the connecting pin 5 is passed, and the connecting pin 5 is passed through the connecting pin hole 11 and fixed with a connecting pin nut 15. As a result, the horizontal plate 1 and the vertical plate 2 have a tabular structure as shown in FIG. Horizontal board 1 and vertical board 2
Any material may be used as long as it is lightweight and satisfies the required strength, such as thermoplastic plastic, steel, reinforced plastic, or neuceramics. Furthermore, as shown in Fig. 1, the horizontal plate 1 is provided with two arc-shaped elongated holes 4 for connection with the vertical plate 2 and for keeping up with the left and right curves of the slope. Pile holes 6 are provided for fixing the stairs to the ground 17.

Further, the vertical plate 2 is attached with a cover plate 3 for connection to the next stage, and the cover plate 3 is provided with a coupling hole 20 through which the coupling bolt 12 is passed.

In this invention, as shown in Fig. 4, when connecting a staircase to the next step, the connecting hole 20 is aligned with the elongated hole 4 so as to follow the left and right curves of the slope, and the connecting bolt is inserted. The structure is such that the stairs are connected one step at a time by tightening a post-joining nut 13 through 12.

In addition, as shown in Fig. 3, a horizontal plate 1 and a vertical plate 2 are provided.
An embedded bolt 10 is provided on the side surface of the first
As shown in FIG. A fixture B8 for setting the inclination angle is held by an embedded bolt 10 and a fixture nut B14, and a tilt angle adjusting hole 9 is provided in the fixture B8. At A22, as shown in FIGS. 2 and 5, the fixing device A7 and the fixing device B8 are fastened through the inclination angle adjustment hole 9 that matches the inclination angle of the slope.

The material of the fixture A7 and fixture B8 may be made of steel, plastic, neuceramics, or any other material as long as it is light and has the necessary strength.

Further, as shown in FIG. 5, the bottom and top steps of the simple staircase of the present invention are fixed with stakes 16, and if the number of steps is large, it is sufficient to fix the stairs with one stake 16 for every five steps. The material of the stakes 16 may be wood, steel, or plastic, as long as the heads of the stakes 16 are processed so that the stairs can be fixed to the ground 17 by simply driving them.

(Effects) One set of the simple stairs of the present invention has one step and is made of a flat plate, so when carrying it, multiple steps can be carried at once, so it is possible to install the stairs at the back of a mountain path without using human labor. When it is necessary to transport materials, the packaging is compact and the number of stakes 16 can be reduced, making it convenient for transporting materials.

Moreover, 2 sets of fixing bolts A are required for one step of the stairs.
21 and fixing nut A22, a staircase with the horizontal board 1 kept level can be completed, and the horizontal board 1, vertical board 2, and fixture A
7. Form a strong triangle with the fixture B8, and connect it to other stages with just a simple assembly process of tightening two sets of connecting bolts 12 and connecting nuts 13. Even if it curves left and right, it is possible to form stairs that follow the curve.

The most outstanding feature of this invention is that it uses a single type of setting member and can be easily used to maintain the level of the horizontal plate 1 even when the slope angle changes. It is possible to construct.

Moreover, the structure of the staircase is triangular, making it stable and durable, and each step is firmly connected with bolts and nuts, so the structure is stable and strong.
By simply fixing the stairs to the ground 17 with stakes 6 every five steps, a lightweight yet strong staircase can be formed.

As described above, according to the simple staircase of the present invention, it is possible to form a sturdy staircase that is lightweight and has a shape that is convenient to carry, and is extremely easy to construct.Moreover, the slope of the slope can be reduced by using a single type of staircase member. Even if the height is not constant, the horizontal board 1 can be kept level, providing an ideal staircase that can be followed even when the slope curves left and right, so it can be said to be a truly meaningful idea.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a set of one step of the simple staircase of the present invention, Fig. 2 is a perspective view of the set of one step of the simple staircase of the present invention when assembled, and Fig. 3 is a perspective view of the set of one step of the simple staircase of the present invention. Figure 4 is a perspective view of one step of the simple staircase disassembled into parts, Figure 4 is a perspective view of the simple staircase of the present invention when it is constructed, and Figure 5 is a perspective view of the simple staircase of the present invention when the inclination of the slope changes. Fig. 6 is a plan view showing the state when constructed on a site with a curved slope, Fig. 7 is a perspective view of a conventional simple staircase, Fig. 8 The figure is a side view of a conventional simple staircase constructed. Explanation of symbols, 1...Horizontal board, 2...Vertical board, 3...
...Choice plate, 4...Elongated hole, 5...Join pin, 6...Pile hole, 7...Fixing device A, 8...Fixing device B, 9...Hole for adjusting the inclination angle, 10...Embedded bolt , 11...
...Hole for connecting pin, 12...Connecting bolt, 13...
...Connecting nut, 14...Fixing tool nut B, 1
5...Nut for connecting pin, 16...Pile, 17...
Ground, 18... Conventional simple staircase, 19... Screw nail, 20... Connection hole, 21... Fixing bolt A, 22... Fixing nut A.

Claims (1)

[Scope of utility model registration request] One step consists of a horizontal board and a vertical board, and the joint between the horizontal board and the vertical board is in the shape of a chopping board, and the horizontal board has a long hole for bending the stairs left and right, and a fixing device. Use to set the slope angle of the stairs, and when connecting to another step, align the holes in the chopping board attached to the upper vertical board with the elongated holes in the lower horizontal board, and secure by inserting bolts, nuts, or pins. A simple staircase made by combining the lower horizontal board and the upper vertical board.