JP3130010B2 - Slope installation stairs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a staircase used for managing a slope on an expressway or the like, and more particularly to a staircase provided on the slope.

[0002]

2. Description of the Related Art Generally, in the construction of railway track sites and highways, in addition to excavating tunnels and providing viaducts, the slopes of mountains are often cut open. An inclined slope is formed on one or both sides of the track site or highway. On this slope, concrete was poured over the entire surface or a concrete block was embedded in the surface to prevent collapse of earth and sand on the slope.

However, in such a construction, there are places to be corrected or repaired with the passage of time, so that after the completion of the construction, it is checked whether there is any abnormality on the slope or whether there are any places to be corrected. Therefore, stairs have been set up for this slope inspection. The slope installation stairs of Japanese Patent Application No. 10-72524 invented by the present applicant have the advantage that the angle of the steps of the stairs can be adjusted in accordance with the shape of the slope, and that they can be installed cheaply and easily. .

[0004]

However, a problem that cannot be solved by the above-mentioned invention is that firstly, in the above-mentioned invention, the frames suspended on the left and right of the steps of the stairs are installed with a certain length. If the slope of the slope is not constant but has unevenness, it is necessary to level the slope again before installing the stairs. I was Also, because the frame is installed with a certain length, if there is an obstacle in the direction of travel of the stairs, change the direction of travel so as to detour from a position considerably in front of the obstacle Had to be installed.

In view of the above points, the present invention can be installed inexpensively and easily, and can cope with the case where the slope of the slope is not constant or the case where the slope is installed directly on the ground where no concrete is cast. It is an object of the present invention to provide a slope installation stair that can be easily detoured even when there is an obstacle.

[0006]

According to the present invention, there is provided a footboard portion,
An upper plate portion bent vertically upward with respect to the tread plate portion, and a lower plate portion bent vertically downward with respect to the tread plate portion; And a mounting member for connecting the supporting member and the step, and a steel rod for fixing the step to the ground. The upper plate portion and the lower plate portion have a plurality of through holes continuously from the vicinity of both left and right edges toward the inside, and the support member has a vicinity of the upper edge. And a plurality of through holes continuously extending upward from the vicinity of a lower edge.

The mounting member for connecting the supporting member and the step includes a bolt and a nut, and a washer inserted between the bolt and the nut is inclined at a constant angle in thickness. By using a washer having a special shape, the direction of the step can be changed in accordance with the traveling direction of the stairs.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. First, an embodiment of a slope installation staircase according to the present invention will be described. FIG. 1 is a view showing steps used for the slope installation stairs of the present invention. This step 1 includes a step board 1a, an upper board 1b, and a lower board 1
c is formed integrally, and the upper plate portion 1b is formed by bending upwardly perpendicularly to the tread plate portion 1a. The upper plate 1b is located at a substantially central position in the vertical direction, and has a plurality of circular through-holes 2 formed continuously from near the left and right edges toward the inside. Further, the lower plate portion 1c is formed by being bent vertically downward with respect to the tread plate portion 1a. The lower plate portion 1c is also located substantially at the center in the vertical direction and inward from near the left and right edges. A plurality of circular through holes 2 are formed continuously toward the bottom. In addition, step board part 1
Through holes 6 are formed near the four corners of a.

FIG. 2 is a view showing a supporting member used for the stairs for installing a slope according to the present invention. The support member 3 is a vertically long plate member having a rectangular shape, and a circular through hole 4 is formed near the upper edge, and a plurality of circular through holes 4 are continuously formed upward from the vicinity of the lower edge. A hole 5 is drilled.

Next, the mode of use of this embodiment will be described. FIG. 3 is a diagram showing a case where the slope installation stairs of the present invention are actually installed on the slope. As shown in this figure, the upper plate portion 1b of the step 1 located below and the lower plate portion 1c of the step 1 located above are connected by two support members 3, and this configuration is repeated a plurality of times. A step for surface installation is formed. As described above, the connection between the step 1 and the support member 3 is such that the support member 3 has a plurality of circular through-holes 5 continuously drilled from the vicinity of the lower edge upward. One of the plurality of through holes 5 is selected corresponding to the inclination, and the through holes 5 and the upper plate 1 of the step 1 are selected.
A bolt is inserted into one of the plurality of through holes 2 of b.
They are connected by nuts. Here, by aligning the positions of the through holes 5 of the two support members 3 on the left and right, the tread plate portions 1a of the respective connected steps 1 are kept parallel to each other.

A through hole 4 formed near the upper edge of the support member 3 and a plurality of through holes 2 in the lower plate portion 1c of the step 1 are provided.
One of them is a bolt inserted and connected by a nut. Here, the through holes 2 in the upper plate portion 1b into which bolts are inserted for connection with the two support members 3 described above.
The position of the lower plate 1c from the left and right edges and the position of the lower plate portion 1c from the left and right edges of the through hole 2 match, so that the support member 3 is installed perpendicularly to the surface of the step plate portion 1a of the step 1.

Further, through holes 6 are formed in the four corners of the tread plate portion 1a in step 1, and a steel rod 7 having a head larger than the diameter of the through hole 6 is inserted into the through holes 6. Step 1 is fixed to the ground by inserting the tip of the steel rod 7 deep into the ground.

Next, another embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. FIG. 4 is a diagram showing an example of a usage mode of the slope installation stairs according to the present invention. As shown in this figure, the slope installation stairs of the present invention can change the direction of travel when there is an obstacle such as a telephone pole in the direction of travel of the place where the steps are to be installed, and can be detoured. is there. More specifically, the through hole 4 above the support member 3 is inserted into the through hole 2 continuously provided on the left and right sides of the lower plate portion 1c of the step 1 so that the through hole 4 is close to the direction opposite to the direction to be bent. Connect with bolts and nuts according to the holes 2.

Further, one of the plurality of through holes 5 continuously provided from the lower edge of the support member 3 is connected to the plurality of through holes continuously provided on the left and right sides of the upper plate portion 1b of the step 1. Hole 2
The bolts and nuts are used to connect the through holes 2 near the same direction as the direction to be bent. By repeating this and increasing step 1, it is possible to make a detour without contacting the obstacle in the traveling direction.

Another embodiment of the present invention will be described with reference to FIGS. (A) and (b) of FIG.
Is a washer inserted between the bolt 10 and the nut 11. FIG. 5B shows a normal washer 9, while FIG. 5A shows a washer 8 whose thickness is inclined at a certain angle.
By combining both the washers (a) and (b), step 1 can be changed according to the traveling direction.

FIG. 6 is a plan view showing a case where the direction of the step 1 is changed in accordance with the traveling direction in the stairs for setting a slope according to the present invention. When the direction of the step 1 is changed in accordance with the traveling direction of the stairs as shown in this figure, the washer 8 of FIG.
Is fitted between the upper plate portion 1b of the step 1 and the support member 3. Next, the washer 8 shown in FIG. 5A is fitted between the nut 11 and the inside of the lower plate portion 1c of the step 1 one step above. On the other hand, in the support member 3 on the far side in the bending direction,
A combination of the washers 8, 9 of (a) and (b) is fitted between the upper plate 1b of the step 1 and the support member 3. Next, the inside of the lower plate portion 1c of the step 1 and the nut 1
The washer 8 shown in FIG. By repeating the above configuration between adjacent steps 1,
Since the direction of Step 1 can be changed according to the traveling direction of the stairs, the stairs can meander in an S-shape.

It goes without saying that various embodiments can be adopted without departing from the spirit of the present invention. For example, by combining the stairs bypassing the obstacle shown in FIG. 4 with the stairs in which the direction of step 1 shown in FIGS. 5 and 6 is changed according to the traveling direction of the stairs, It is possible to bypass the stairs.

[0018]

As described above, according to the present invention, the tread portion,
An upper plate portion bent vertically upward with respect to the tread plate portion and a lower plate portion bent vertically downward with respect to the tread plate portion; And a mounting member for connecting the supporting member and the step, and a steel rod for fixing the step to the ground. The upper plate portion and the lower plate portion have a plurality of through holes continuously from the vicinity of both left and right edges toward the inside, and the support member has a vicinity of the upper edge. , And a plurality of through-holes continuously extending upward from the vicinity of the lower edge. The stairs can be set up with only mounting bolts and nuts. Because simple structure becomes expensive, since it is possible to shorten installation work time, thereby reducing the cost as a whole. In addition, by appropriately combining a plurality of through holes provided in the upper plate portion and the lower plate portion of the step with a plurality of through holes provided in the support member, the slope of the slope has unevenness that is not constant. Can also be installed. Further, by using the through hole, when there is an obstacle in the traveling direction of the stairs, the stairs can be easily bypassed.

The mounting member for connecting the supporting member and the step includes a bolt and a nut, and a washer inserted between the bolt and the nut is inclined at a constant angle in thickness. By using a washer of a special shape, it is possible to change the direction of the step in accordance with the traveling direction of the stairs. Even in the case where there is, it is possible to change the traveling direction immediately before and make a detour, and to improve the appearance when viewed from, for example, an expressway below the slope.

[Brief description of the drawings]

FIG. 1 is a diagram showing steps used for a slope installation staircase of the present invention.

FIG. 2 is a view showing a supporting member used for the slope installation stairs of the present invention.

FIG. 3 is a diagram showing a case where a slope installation staircase of the present invention is actually installed on a slope.

FIG. 4 is a diagram showing an example of a usage mode of the slope installation stairs of the present invention.

FIG. 5A is a diagram showing a washer having an inclined thickness, and FIG. 5B is a diagram showing a normal washer.

FIG. 6 is a plan view showing a case where the direction of a step is changed in the stairs for setting a slope according to the traveling direction of the present invention.

[Description of Signs] 1 Step 1a Tread plate portion 1b Upper plate portion 1c Lower plate portion 2, 4, 5, 6 Through hole 3 Support member 7 Steel rod 8, 9 Washer 10 Bolt 11 Nut

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Sofi Tsuzuki 1-407, Shagaoka, Meito-ku, Nagoya-shi, Aichi Guardrail Industry Co., Ltd. Nagoya Branch (56) References Open Sho 60-4155 (JP, U) Actual open Sho 59-115048 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E02D 17/20 E04F 11/02

Claims (2)

(57) [Claims] 1. A step plate portion, an upper plate portion bent vertically upward with respect to the step plate portion, and a lower plate portion bent vertically downward with respect to the step plate portion are integrally formed. A step, a supporting member for connecting the plurality of steps, a mounting member for connecting the supporting member and the step, and a stair including a steel rod for fixing the step to the ground, Near the four corners of the tread plate portion, there are through holes into which the steel bars are inserted, and the upper plate portion and the lower plate portion have a plurality of through holes continuously from the vicinity of both left and right edges toward the inside. The supporting member has a through-hole near an upper edge and a plurality of through-holes extending upward from near a lower edge. 2. The mounting member for connecting the supporting member and the step includes a bolt and a nut,
By using a washer of a special shape with a certain angle of inclination for the washer inserted between the bolt and the nut, the direction of the step can be changed in accordance with the traveling direction of the stairs. The slope installation stair according to claim 1, characterized in that: