JPH075162Y2 - Sliding temporary stairs - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a slide type temporary stairway that is temporarily installed during construction work until the construction work is completed.

[Problems to be solved by conventional techniques and devices] Conventionally, ladders have been used for going up and down to high places in construction work, but materials and tools to be transported to high places as the construction progresses. As the amount of transported goods increases, it is not easy to carry such transported goods, and it lacks safety. In addition, there is a limit to the amount of transported goods that can be carried in hand, so work efficiency is also poor. It was

In view of the above conventional problems, the present invention makes it possible to easily and safely go up and down to a high place at a work site and efficiently carry a transported object. , The construction period is shortened and the construction cost is reduced.

[Means for Solving the Problems] The sliding temporary staircase according to the present invention can achieve the above-mentioned object, and is as follows. That is, a lower ladder step in which the front end portions of the left and right sides of a large number of treads (3) are fixed at a predetermined pitch to the outer wall surfaces of the grooves of the left and right side columns (2) (2) of the gutter shape which face each other. Left and right side columns in 1) (2)
At the upper part of the front rising piece (b) of (2), a large number of treads (3 ') are provided on both left and right sides on the outer wall surfaces of the gutter-shaped left and right side columns (2') (2 ') facing each other. The rear end of the side is fixed at the same pitch as the pitch of the step plates (3) ... (3) of the lower ladder step (1), and a hook (4) is provided at the front end of the uppermost step plate (3 '). Left and right side columns (2) (2) (2) (2) (2) (2) (2) (2) (2) (2) (2) ) And the lower ends of the left and right columns (2 ') (2') in the upper ladder step (1 ') are provided with slide guides (5) and (5'), respectively. ) (5 ') and slide the overlapping portion of the lower ladder step (1) and the upper ladder step (1) vertically to lower the ladder step (1). ) From the lower end to the upper end of the upper ladder step (1 ') is adjusted to a predetermined length, and the overlapping portion of the lower ladder step (1) and the upper ladder step (1') is screwed to fix the lower ladder step. In the front of the uppermost step (3) of (1), the step (3 ') of the upper ladder step (1') is connected in the same plane to form a landing (a) in the middle of the stairs. To do.

[Operation] Since the slide type temporary staircase according to the present invention is configured as described above, when using the first, the temporary staircase according to the present invention is first parallel to the assembly of the basic skeleton of the building. Set the standing position of the stairs, and make the overlapping part of the front rising piece (b) of the lower ladder step (1) and the rear rising piece (a) of the upper ladder step (1 ') corresponding to the standing position. After adjusting the overall length by sliding it vertically, and screwing the overlapping part, the hook (4) provided at the front end of the uppermost tread (3 ') is installed in a high place of the building. It is used by leaning against the material (11) and leaning against it. Therefore, when using the stairs installed at the desired location for going up and down to high places, the work efficiency is higher than when using a conventional ladder. Improved and safer, of course at the top of the lower ladder stage (1) Since the step board (3 ') of the upper ladder step (1') is connected to the front side of the board (3) in the same plane and a flat landing (a) is formed in the middle of the stairs, going up and down is easy. It is something that will be done.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

In the figure, (1) is a lower ladder step, and the outer wall surfaces of the grooves of the left and right gutter-shaped light alloy columns (2) and (2) are opposed to each other with a space between
A large number of rectangular light alloy treads (3) on the outer wall ...
The front end portions of both right and left sides of (3) are fixed at a predetermined pitch, and the relative angle between each tread (3) ... (3) and the side pillar (2) can be set arbitrarily, but the drawing shows the side The treads (3) ... (3) are set to be horizontal when the standing angle of the pillar (2) is 45 degrees.

(1 ') is an upper ladder step that is similar in basic structure to the lower ladder step (1), and is a gutter-shaped light alloy left and right column (2').
The outer wall surfaces of the groove of (2 ') are opposed to each other with a space, and a large number of rectangular light alloy treads (3') are provided on the outer wall surface.
The rear end portions of both right and left sides of (3 ') are connected to the lower ladder step (1).
Are fixed at the same pitch as the pitch of each tread (3) ... (3), and the relative angle between each tread (3 ′) (3 ′) and the side pillar (2 ′) is determined by the lower ladder step (1). The hooks (4) are provided at the front end of the uppermost tread (3 '), and the right and left columns (2') in this upper ladder step (1 ') (2) The lower part of the rear rising piece (a) is superposed on the upper part of the front rising piece (b) of the right and left columns (2) and (2) in the lower ladder step (1).

(5) (5 ') is the upper end of the left and right columns (2) (2) in the lower ladder step (1) and the left and right columns (2') (2 ') in the upper ladder step (1') With the slide guides provided on the lower end and the left and right side columns (2) (2) or (2 ') (2') of the gutter-like shape, their legs (6) or (6 ') are attached to the inner bottom surface. The inner surface of the U-shaped head (7) or (7 ') which is fixed and provided at the end of this leg (6) (6') is overlapped with the front rising piece () of the lower ladder step (1). b) and the rear rising piece (a) of the upper ladder stage (1 ') are overlapped with each other, and the total length from the lower end of the lower ladder stage (1) to the upper end of the upper ladder stage (1') is adjusted. In this case, it serves to guide the rising pieces (a) and (b) of the overlapping side pillars (2) and (2 ') to slide properly.

Reference numeral (8) is a screw for screwing the overlapping portion of the front rising piece (b) of the lower ladder step (1) and the rear rising piece (a) of the upper ladder step (1 ′) which are screwed together, and this screw (8 ) Through holes (9) ... (9) are provided on the front rising piece (b) of the lower ladder step (1) and the rear rising piece (a) of the upper ladder step (1 ′) at intervals. As described above, it is possible to cope with the case where the total length from the lower end of the lower ladder stage (1) to the upper end of the upper ladder stage (1 ') is adjusted.

Incidentally, if the pillar (10) is connected to the lower part of the side pillar (2 ') of the ladder step (1') and used, the stability can be greatly improved. 2) If the columns (12) ... (12) are established at intervals in (2 ') and the handrail (13) is connected to the upper end of the columns, the safety can be further improved. .

[Advantage of the Invention] As described above, the sliding temporary staircase according to the present invention can be easily installed at a desired place on a construction site, and when the staircase is used for going up and down to a high place, a conventional ladder is used. Unlike the treads in the above, the treads that can support the body stably are used, so the safety is high and the work efficiency is greatly improved, and the upper ladder step is located in front of the uppermost step of the lower ladder step. Since the treads are connected in the same plane to form a flat landing in the middle part of the stairs, it has features such as easy ascent and descent.

[Brief description of drawings]

 FIG. 1 is a side view of a slide type temporary staircase according to the present invention. FIG. 2 is a sectional view taken along the line AA shown in FIG. FIG. 3 is a sectional view taken along the line BB shown in FIG. In the figure, (1) is the lower ladder stage. (1 ') is the upper ladder stage. (2) (2 ') is a side pillar. (3) and (3 ') are treads. (4) is a hook. (5) and (5 ') are slide guides. (8) is a screw. (9) is a screw insertion hole. (A) is a rear rising piece. (B) is a front rising piece.

Claims (1)

[Scope of utility model registration request] 1. A left and right side pillar in a lower ladder step in which the front end portions of the left and right side edges of a large number of treads are fixed at a predetermined pitch on the outer wall surfaces of the grooves of the left and right side pillars of the gutter shape which face each other. At the upper part of the front rising piece, the rear ends of the left and right sides of a large number of treads are fixed at the same pitch as the pitch of each tread in the lower ladder step on the outer wall surfaces of the gutter-shaped left and right side columns facing each other. In addition, the lower parts of the rear rising pieces of the right and left columns in the upper ladder step, which are provided with hooks at the front end of the uppermost step plate, are overlapped, and the upper ends of the left and right columns in the lower ladder step and the upper ladder step are overlapped. The slide guides are provided at the lower ends of the left and right columns, and the slide guides guide the slide guides to slide the overlapping portion of the lower ladder stage and the upper ladder stage up and down to move from the lower end of the lower ladder stage to the upper end of the upper ladder stage. Up to full length Together with adjusting the length, and stop screw overlap each other portion between the lower Hashigodan and upper Hashigodan,
A sliding temporary staircase characterized in that the landing plate is formed in the middle part of the stairs by connecting the treads of the upper ladder to the same plane as the front of the top of the lower ladder.