JPH03206265A - Temporary handrail device for stair - Google Patents

Abstract

PURPOSE:To facilitate assembly, disassembly, conveyance, and storage by removably mounting an expandable handrail lever between stays to the lower end of which rise fixing metals are respectively arranged. CONSTITUTION:A rise fixing metal 2 is mounted to the lower end of a stay 1 to form a stay part (a). Mounting plates 4, being a support part 3 for the side plate of a stair, are secured on both sides of the lower end of the stay 1 for the rise fixing metal 2. A nut 5 pointing to the stay 1 side is secured to the lower end of the mounting plate 4, and a bolt 6 is joined in a screwing-in state with a nut 5. A mounting metal 7 to which a handrail lever part (b) is mounted is arranged to the upper part of the stay 1. The one handrail levers 8a, 8b, and 8c are telescopically inserted in the other handrail levers 9a, 9b, and 9c to form a handrail part (b). An engaging metal 11 removably engaged with the mounting metal located to the stay 1 is arranged to the end part of each of the handrail levers 8a, 8b, 8c, 9a, 9b, and 9c is mounted.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a temporary handrail device that is easy to assemble and disassemble to ensure safety, to be installed on iron stairs before concrete is poured during construction. It is characterized by being economical, requiring no effort to carry and store, and having a good appearance.

[Conventional technology]

In building construction, steel frames are being assembled and steel stairs are being constructed between floors, and work is progressing on the upper floors. In that case, the stairs were used for workers to ascend and descend.

Conventionally, the handrails for the stairs mentioned above were designed according to the individual stairs (■) as shown in Fig. As shown in the diagram, commercially available pipes are cut to the required length and joined together using multiple clamps.
It was also framed and attached to the stairs to form a handrail.

[Problem to be solved by the invention]

If the former handrail (X) is to be used at another site, it cannot be reused because each staircase has a different length, angle of inclination, etc., and can only be used at that site. It stood there. Therefore, at other sites, it would be uneconomical to have to make a new one, and furthermore, it would take time and manpower to make it, there would be a limit to how much it could be disassembled, and it would be troublesome to transport and store it.

In addition, for handrails using the latter type of clamp, the length of the handrail pipe is determined according to each staircase, the length of the handrail pipe is cut and processed, and then the pipes are joined vertically and horizontally with clamps. It is necessary to frame it and then attach it to the stairs, which still requires manpower and time, and is also unsightly.
Furthermore, dismantling the structure required manpower and time, just like the framework itself.

[Means to solve the problem]

In order to solve the above-mentioned problem, the present invention has a configuration in which a telescopic handrail rod is detachably provided between the columns each having a standing fixture at the lower end, and can be installed to suit the stairs of each site. That is.

[For production]

In the present invention, as shown in +1, the support portion (α) has a staircase (
It is fixed vertically in an appropriate position on the side plate of the force.

That is, as shown in Figure 5, the receiving part (3) of the mounting plate (4) provided at the lower end of the column (1) is engaged with the side plate of the staircase (force), and the mounting plate (4) is welded, etc. Tighten the bolt (6) screwed into the nut (5) fixed by the stairs (
■Pinch the side plate and fix it vertically.

Next, a handrail rod (Al) is attached between the pillars fal.

That is, one handrail rod (8a) (811) (8
c) and the other handrail rod (gtOL) ('95) (
9C) to adjust the length between the pillars (11), and attach the engaging fittings (11) provided at each end to the pillars (1) as shown in Figures 2 and 3. When inserted into the metal fitting (7), the non-return claw C12) of the engaging metal fitting (11) is engaged with the mounting fitting (7) as shown in the illustration of the spear 4.

In the above structure, if the engaging metal fitting (1l) is configured to rotate within the mounting fitting (7), it can be used for various types of stairs with different inclination angles.

In addition, when disassembling for moving to the site, etc., it is sufficient to remove the handrail rod (hl) from the support (α) and then remove the support lα from the staircase (tY) in the opposite manner to the above-mentioned assembly. Since both the strut portion (α) and the handrail rod portion (b) are rod-shaped, they can be carried and stored in a compact bundle.

〔Example〕

An embodiment of the present invention will be described in detail below based on the drawings.

As shown in Figure 2, the present invention is comprised of a support column lα} and a retractable handrail rod (A) that is detachably provided between the support columns (α).

First, regarding the support section (α), an upright fixture (2) is provided at the lower end of the support support (11).

The erecting fixture (2) has mounting plates (41), which constitute the receiving parts (3) of the side plates for the stairs (force), fixed to both sides of the lower end of the column (11) by welding or the like. A nut (5) facing toward the support column (1) is fixed to the lower end by welding or the like, and a bolt (6) is screwed into the nut (5).

In other words, the structure is such that the side plate of the stairs (YI) can be held between the lower end of the support column fil and the bolt (6).Furthermore,
Above the support column (11, the mounting plate (
4), the handrail rod part (described later) in the same direction as the bolt (61 etc.)
A mounting bracket (7) is provided to which b) is attached. It is desirable that this mounting bracket (7) be constructed of a cylindrical body.

Next, referring to the handrail rod (A+), in the present invention, it is configured to be extendable and retractable.

That is, one handrail rod (8Q) (8!) > (8
c') is the other handrail rod (9CL) (9b) (9c
) and can be slid freely.

In the figure. (10) are fixing bolts for maintaining and fixing the respective required expansion and contraction states.

Furthermore, the handrail rods (8a) (8c) (
The key) (9&) (9C'J is configured to be detachable from the support column (11).

Stand, handrail rods (8a) (8b) (8C) (9
d) At each end of (9A) and (9C), an engaging fitting (11) is provided which removably engages with a mounting fitting (7) provided on the column (11).

In the embodiment of the drawing, this engaging fitting (l1) is inserted into the mounting fitting (7), and after complete insertion, the non-return claw (l1) provided at the tip is inserted.
12) is locked to the mounting bracket (7) and is configured to be difficult to remove naturally.

t1 It is preferable that this engaging metal fitting (11) is rotatable within the mounting fitting (7) which is made into a cylindrical body by, for example, being configured in a columnar shape.

With such a structure, it can be used for various types of stairs with different angles of inclination.

In the figure, (13) is a return spring of the check claw (l2).

As described above, the present invention can be constructed with one touch by simply erecting columns on the side panels of various staircases of different sizes, shapes, inclination angles, etc., and expanding and contracting the handrail rods to attach them.

〔Effect of the invention〕

As described above, according to the present invention, there is no need to design according to the stairs of each site as in the past, and there is no need to construct a framework using a large number of pipes, clamps, etc.
It can be installed and used according to various sites, it is easy to assemble and disassemble, it is economical because it does not require trouble to carry and store, it can be done quickly without requiring manpower and time, and it has a good appearance. It is possible to obtain good effects.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; the construction drawing is a side view showing a temporary installation state, the second drawing is an exploded perspective view, the third drawing is an enlarged view of the main part of the second drawing, and the fourth drawing is a hand. An enlarged longitudinal cross-sectional view of the sliding rod attachment part, FIG. 5 is an exploded perspective view of the upright fixture part, and FIG. 6 is a perspective view showing a conventional example. (1)... Prop, (2)... Standing fixture, (8G
) (8A) (8C) (Cfi) (9h) (9C)
--- Handrail rod, (α)... Support portion, (bl... Handrail rod portion.

Claims (1)

[Claims] A temporary handrail device for stairs, characterized in that a retractable handrail rod is removably provided between columns each having an upright fixture at the lower end.