JP2948561B1 - Slope installation stairs - Google Patents

Abstract

A stair for inexpensive slope installation is provided. SOLUTION: Handrails 6a supported by parallel frames 1a, 1b, steps 2, 3 ... suspended from the frames, and columns 4a, 4b, 5a, 5b ... standing upright on the frames. , 6b, the above steps are rotatably supported on the frame,
.. Are provided with fixing means for stopping the rotation of the step, wherein the fixing means is provided with track plates 21a, 21b, 31a, 31b,.
And a plurality of positioning holes 24 penetrating through the track plate.
, and stoppers 23a, 23b, 33a, 33b,... which are mounted while simultaneously penetrating the positioning holes and a part of the frame.

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 In general, 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.
In such a case, an inclined slope is formed on one or both sides of the track site or the highway. On such a slope, concrete is poured over the entire surface or a concrete block is embedded in the surface to prevent the soil on the slope from collapsing. But,
Even if you have taken measures to prevent disasters by the above method, for example, cracks have occurred in unexpected places of cast-in-place concrete, or there are some concrete blocks that have collapsed, When the construction was completed, it had a sufficient disaster prevention effect, but such an effect was not maintained, and it was natural that there would be places to be corrected or repaired over time. Therefore, it is necessary to check whether there is any abnormality on the slope after the completion of the construction, or whether there is any place to be corrected.In this case, it is necessary to go up and down along the slope from the track site or highway To be able to do so, the provided stairs are provided on the above slope at appropriate intervals. However, angles and lengths of slopes on which stairs should be provided greatly differ depending on locations, and uniform stairs could not be manufactured in advance. For this reason, the conventional stairs have been used to measure the topography of the place where the stairs should be provided near the completion of the construction, and to manufacture stairs having dimensions that match the measurement results.

[0003]

However, since the above stairs are specially manufactured according to the shape of the slope after the construction, the stairs can be selected from pre-made stairs. It is not a combination of several types of prefabricated parts, and it is manufactured by hand such as welding according to the dimensions obtained from the measurement results, and it is extremely expensive I have to be
It was uneconomical for a staircase to be used only during the inspection of the slope.

[0004] In view of the above points, an object of the present invention is to provide an inexpensive staircase for installing a slope.

[0005]

The present invention SUMMARY OF], a pair of parallel
And disposed frame, the steps which are suspended on the frame, the supports disposed on the frame, in staircase comprising a handrail supported by the struts, the step on both sides is bent vertically With orbital plate
The track plate is pivotally mounted on the frame.
With a shaft support for being supported
Multiple positioning holes penetrate to form an arc shape
And the above frame is constant according to the slope of the slope
Installed at an angle of inclination of
So that it is always horizontal regardless of the slope of the slope.
One positioning hole is selected from the number of positioning holes
Is inserted into the positioning hole and the frame,
The present invention provides a slope installation staircase wherein steps are fixed to the frame .

[0006] The present invention also provides a landing having a disposed a <br/> frame a pair of parallel, the steps to be suspended to the frame, a horizontal tread while connected to the frame,
A post erected on the frame, handrail and, in staircases consisting of a landing for handrail provided on the landing, the connection portion between the frame and the landings are rotatably pivotally supported by said strut It is made to have a connecting portion between the handrail and the landing for handrails of the frame, the stearate
Has a track plate with both sides bent vertically
The orbital plate pivots on the frame
It has a shaft support to be freely supported, and the shaft support is
Multiple positioning holes penetrate to form an arc
The above-mentioned frame is one
It is installed with a fixed inclination angle, and
The top is always horizontal regardless of the slope of the slope.
One positioning hole is selected from multiple positioning holes
Bolts are inserted into the positioning holes and the frame and
The present invention also provides a slope installation staircase, wherein the step is fixed to the frame .

[0007]

[0008]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1 to FIG. 3, the embodiment of the present invention is configured such that the frame 1 is maintained while maintaining a predetermined width.
a, 1b are provided in parallel, and a plurality of steps 2, 3,.
.. are provided (FIG. 2). Steps 2, 3 ...
Are bent on both sides of the track plates 21a, 21b, 31
., and are supported by the frames 1a and 1b at two locations. The support located on the lower side of the stairs is a pivotally supporting portion 22a, 22b, 32a, 32b,... Which is rotatably supported, and the support located on the upper side of the stairs is fixed firmly. , 23a, 23b, 33a, 33b,. The fixing portions 23a, 23b, 33a, 33b are provided with a plurality of positioning holes 24a, 34a (24b, 3b) provided in the track plates 21a, 21b, 31a, 31b,.
4b) One selected from among the frames 1a, 1
b, the shaft support portions 22a, 22b, 3
The positioning holes 24a, 34a... Can be freely selected while rotating about the 2a, 32b. Therefore, as shown in detail in FIG. 3, the positioning holes 24b are arranged so as to form an arc centered on the shaft support 22b. in this way,
Track plate 2 forming a part of steps 2, 3, ...
1a, 21b, 31a, 31b,...
The angles of the tread surfaces 25, 26 of steps 2, 3,... with respect to the longitudinal direction of a, 1b are different, and the directions of steps 2, 3,. Can be adjusted. Track plates 21a, 21
b, 31a, 31b ... and positioning holes 24, 34 ...
Is fixed by a fixing member, but can be fixed while penetrating both at the same time. Specifically, a bolt is inserted and fastened by a nut. With such a configuration, it is possible to provide a stair having a required gradient without specially manufacturing according to the state of the slope A.

The frames 1a, 1b of this embodiment are provided with columns 4a, 5a,... In a vertical direction (FIG. 1), and handrails 6a are provided at the tips of the columns 4a, 5a,. (6b) is supported. here,
The length of the columns 4a, 5a,... Is adjusted to about 40 cm, and is shorter than a normal column. That is, the height of the handrail is usually adjusted to about 75 cm. However, the columns 4a, 5a,...
Is provided in the vertical direction with respect to the stairs, an angle (α) is generated between the stairs and the horizontal when the stairs are installed obliquely. For example, if this angle is 45 °, the actual handrail 6a ( 6b) The height of... Is twice as large as about 56.5.
7 centimeters and the angle is 60 degrees,
It doubles to 80 centimeters.

A landing 7 is required to inspect the slope A. Normally, the slope A is inspected while riding on the steps 2, 3... Of the stairs. However, in order to record the inspection result and the detailed state of the slope A, the slope A is checked. Will be used. Therefore, in order to be able to move smoothly to the landing 7 from the above steps 2, 3.
and handrails 6a (6b) are required to be continuous. In the present embodiment, as shown in FIGS. 2 and 4, as the angles of the frames 1 a and 1 b change according to the angle of the slope A, the angles between the frames 1 a and 1 b and the surface of the landing 6 also change. Connection between the two
Adjustment was made according to 1a and 11b. First, the connecting portions 11a, 11b are attached to the ends of the frames 1a, 1b.
Is fixed, and the connecting ends 71a and 71b of the opposing landing 7 are projected, the shapes of the directly opposite edges are semicircular, and the overlapping portions are fastened while facing the semicircular portions ( (Fig. 4). This tightening is performed by screwing nuts through bolts, but the frames 1a and 1b and the landing 7 are individually supported legs 12,
13, ..., 72, 73,
The loads acting on each can withstand individually,
Due to the loosening of the above-mentioned tightened state, the angle of the connection portion does not change due to use.

In the handrail 6a (6b), the position at which the uppermost end 61a (61b) of the handrail 6a (6b) should be connected to the handrail 74a (74b) provided in the landing 7 and the distance between the two are determined. Since it differs depending on the angles of the frames 1a and 1b, the frames 1a and 1b are connected by connecting portions 8a (8b) having appropriate lengths. This connecting portion 8a (8b)
Are prepared in advance, and a suitable one is selected and used. In addition, the above handrail 6a
(6b) is detachably or slidably provided on the columns 4a, 4b, 5a, 5b,.
If only the (6b) is moved upward, the handrail 6a (6b) and the landing handrail 74a (74) are moved.
It is also possible to easily continue the portion where b) comes into contact by screwing or the like.

In the present embodiment, the above-described structure is employed, so that the same type of stairs are manufactured in large quantities in advance, transported to a construction site such as an expressway, and a method to be installed at the site. Steps 2 and 3 for the angle of plane A
.. So that the plane of... Is horizontal.
..Track plates 21a, 21b, 31 that are part of
a, 31b, a plurality of positioning holes 24a, 3
4a (24b, 34b) ...
These are fixed parts 22a, 22b, 32a, 32b ...
It is fixed at. At that time, the frames 1a, 1
It is also possible to set b and the landing 7 on the slope A first, and then adjust the angle sequentially from the lower end step. May be.

Next, a second embodiment will be described.
This embodiment is almost the same as the above-described embodiment, except that the fixing structure of the frames 1a, 1b and the steps 2, 3,... Is different. That is, in the present embodiment, as shown in FIG.
01b, both sides of the step 102 are bent to form a flat portion 125b so as to be able to abut the track plate 121b. A part of the flat portion 125b is
b, and is rotatably supported by the shaft member b, and is inserted into the fixing portion 122b at the same time as the positioning holes 124b provided in the track plate 121b in other portions. With the above-described configuration, the step 102 can be configured to be thin, but since the track plate 121b always projects outward, there is a possibility that the work efficiency may be reduced to some extent during transport or installation work.

It is needless to say that various embodiments can be adopted without departing from the spirit of the present invention. For example, in the above-described first embodiment, the positioning holes 24, 34,... Have not been described in detail, but this is because the positioning plates 24a, 21b, 31a,
This is because the number that can be provided differs depending on the strength of the 31b. If a strong material is used, it can be provided at a very fine pitch. In that case, the angle of the step can be adjusted quite finely. Needless to say, At this time, when the frame 1b is installed at a gentle angle, the angle of the step 2 is also gentle, and the positioning hole 24b selected there is adjacent to the positioning hole 24b. 2
4b, and conversely, when the frame 1b is installed at a steep angle, the angle of step 2 also becomes steep, and the positioning hole 24b selected there is provided with the shaft support 22.
The force toward b increases. Therefore, the positioning holes 24b which will be selected in a state where the angle is gentle are large in interval, and the positioning holes 24b which will be selected in a state where the angle is steep are provided at a fine pitch.

The frames 1a, 1b, 101a, 1
A hinge or the like may be used for a connecting portion between the landing 01b and the landings 7, 107, in which case the frames 1a, 1
By appropriately setting b, 101a, 101b and landings 7, 107, both are necessarily connected at an appropriate angle. However, when the frames 1a, 1b, 101a, 101b and the landings 7, 107 are assembled at the construction site, the structure shown in the embodiment is appropriate.

[0016]

As it is evident from the foregoing description, the present invention provides a pair of parallel
And disposed frame, the steps which are suspended on the frame, the supports disposed on the frame, in staircase comprising a handrail supported by the struts, the step on both sides is bent vertically With orbital plate
The track plate is pivotally mounted on the frame.
With a shaft support for being supported
Multiple positioning holes penetrate to form an arc shape
And the above frame is constant according to the slope of the slope
Installed at an angle of inclination of
So that it is always horizontal regardless of the slope of the slope.
One positioning hole is selected from the number of positioning holes
Is inserted into the positioning hole and the frame,
Since the steps are fixed to the frame, the steps for installing the slopes are the gist, so that the steps are rotatably supported.
The angle can be freely adjusted according to the state of the slope to be provided, and even if a uniform staircase is manufactured in advance, it can be dealt with in various situations,
An inexpensive slope installation stair can be provided. In addition,
To pass through the inside of the frame and track plate
Therefore, the steps adjusted to the desired angle are easily fixed.
The work efficiency is high.

Further, the present invention includes a landing having a disposed a <br/> frame a pair of parallel, the steps to be suspended to the frame, a horizontal tread while connected to the frame,
A post erected on the frame, handrail and, in staircases consisting of a landing for handrail provided on the landing, the connection portion between the frame and the landings are rotatably pivotally supported by said strut It is made to have a connecting portion between the handrail and the landing for handrails of the frame, the stearate
Has a track plate with both sides bent vertically
The orbital plate pivots on the frame
It has a shaft support to be freely supported, and the shaft support is
Multiple positioning holes penetrate to form an arc
The above-mentioned frame is one
It is installed with a fixed inclination angle, and
The top is always horizontal regardless of the slope of the slope.
One positioning hole is selected from multiple positioning holes
Bolts are inserted into the positioning holes and the frame and
The steps are fixed to the above-mentioned frame, and the steps for setting the slopes are also the gist, so when used to check the slopes of expressways, etc., the inspection results and slopes of each slope are used. Since the landing for recording the situation can be installed at the same time, the entire required structure can be provided. Moreover, since the landing and the stairs can be connected even when the angle of the slope is different, there is no inferior to the stairs conventionally used.

[0018]

[0019]

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a first embodiment.

FIG. 2 is a front view of a part of the first embodiment.

FIG. 3 is a sectional view taken along the line III-III.

FIG. 4 is a sectional view taken along line IV-IV.

FIG. 5 is a partial cross-sectional view of the second embodiment.

[Explanation of symbols]

 1a, 1b Frame 2, 3 Step 4a, 4b, 5a, 5b Support 6a, 6b Handrail 7 Landing 8a, 8b Connection 11a, 11b Connection 12, 13, 72, 73 Support legs 21a, 21b, 31a, 31b Track plate 22a, 22b, 32a, 32b Shaft support portions 23a, 23b, 33a, 33b Fixing portions 24a, 24b, 34a, 34b Positioning holes 25 Tread surfaces 74a, 74b Posts for scaffolding

Continuation of front page (56) References JP-A-6-272466 (JP, A) JP-A-9-177458 (JP, A) JP-A-52-94619 (JP, A) JP-A-52-97229 (JP, A) , A) Japanese Utility Model Application 57-174633 (JP, U) Japanese Utility Model Application Hei 6-63629 (JP, U) Japanese Utility Model 52-54911 (JP, Y2) Japanese Utility Model 56-13366 (JP, Y2) Japanese Utility Model 5-2735 (JP, Y2) Jikgyo 5-4496 (JP, Y2) (58) Fields investigated (Int. Cl. ⁶ , DB name) E02D 17/20 E06C 9/02 E04G 1/30 E04F 11 / 00-11/116

Claims (2)

(57) [Claims] And 1. A frame disposed a pair of parallel, stair consisting of the steps which are suspended on the <br/> frame, a post erected on the frame, a handrail supported by the struts In the above steps , both sides are bent vertically
Having an orbital plate comprising:
The bracket is a pivot support part that is rotatably supported by the frame.
And form an arc around the shaft support.
A plurality of positioning holes are provided through
Is installed with a certain inclination angle corresponding to the slope of the slope.
The above steps are independent of the slope of the slope
Select one of the positioning holes so that it is always horizontal.
One positioning hole is selected and the bolt is
The above steps are inserted into the frame
A slope installation staircase characterized by being fixed . 2. A frame disposed a pair of parallel, the steps to be suspended on the <br/> frame, a landing having a horizontal tread with connected to the frame, is erected on the frame a post was a handrail supported by said posts,
In a staircase including a landing handrail provided on the landing, a connecting portion between the frame and the landing is rotatably mounted on a shaft, and a connecting portion is provided between the handrail of the frame and the landing handrail. The above steps are on both sides
It has a track plate that is bent directly.
The track plate is rotatably supported by the frame.
And a circular arc centered on the pivot
A plurality of positioning holes penetrate to form a shape.
The above frame has a fixed inclination angle corresponding to the slope of the slope.
Wherein the step is a slope
The above multiple positions so that it is always horizontal regardless of the inclination of
One of the positioning holes is selected and the bolt is
The positioning hole and the frame
Is fixed to said frame .