JPH0324746Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dry staircase using extruded panels as treads.

[Conventional technology]

Cement stairs manufactured using a wet construction method by pouring concrete and mortar into stair formwork have excellent durability and corrosion resistance, but in addition to requiring a curing period during construction, they also require mortar finishing, etc. There is a problem that requires time and effort. Therefore, stairs have been developed that compensate for these drawbacks and take advantage of the advantages, using extruded cement-based panels as tiers and constructed using a dry construction method. Extruded panels are suitable for mass production, have a flat, dimensionally accurate and beautiful surface, and stairs using them as treads are easy to construct.

However, such stairs may be limited in terms of strength, and there are some points that require improvement, such as requiring special hardware for the mounting structure of the treads and reinforcement of the mounting part of the extruded panel. Ta.

[Problem that the invention attempts to solve]

The present invention improves the dry staircase using extruded panels as tiers, reinforces the strength of the extruded panels, and connects a mounting member to this reinforcing material, making it easier to construct, superior in performance, lightweight, and The purpose is to provide high-strength stairs.

[Means for solving problems]

The present invention is a staircase devised to achieve the above object, and is a dry staircase characterized in that the tiers are hollow extruded panels in which a reinforcing material is inserted into the hollow part.

Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a partially cutaway partial perspective view of an embodiment of the staircase of the present invention.

The staircase 1 of the present invention uses a hollow extruded panel 2 of steps, and a reinforcing material 4 is fitted into the hollow hole 3 of the panel 2.

The extruded panel 2 may be reinforced or unreinforced.

The cross section of the hollow hole 3 is circular, oval, rectangular, trapezoidal,
It can be of any other shape, matching the cross-sectional shape of the reinforcing material to be inserted.

For the reinforcing material 4, commercially available round steel, pipe, square steel, channel steel, I-beam steel, angle steel, or a combination of these steels can be used. In some cases, from the viewpoint of corrosion resistance and other reasons, aluminum, stainless steel, Copper alloy and other materials may also be used.

The number of reinforcing materials is appropriately selected as necessary.

A mounting bracket 5 is coupled to the reinforcing member 4, as shown in FIG. The mounting fittings 5 are fittings for fixing the step plate 2 to the stringers or side beams, and are, for example, bolts and nuts. This mounting bracket 5 is the hollow panel 2
A mounting hole penetrating through the hollow hole 3 is formed from the back side of the frame, and the structure is such that the frame is connected to the reinforcing member 4 through this hole.

The reinforcing material 4 and the mounting bracket 5 are connected by the mounting bracket 5.
The reinforcing member 4 may be configured to have an L-shaped bolt or a T-shaped bolt whose head is locked with the reinforcing member 4, or may be connected by screwing or welding.

The method of constructing the stairs of the present invention is as follows.

Attach the stringers or stringers 10 to the stair installation position. A support metal fitting 11 is attached to the side beam 10.

On the other hand, a reinforcing material 4 is fitted into the hollow hole 3 of the extrusion-molded panel 2, and a mounting bracket 5 is attached to the reinforcing material 4 from the back side of the panel 2 through the mounting hole penetrating the hollow hole 3.

Next, this extrusion-molded panel 2 is placed on the stringer or the support hardware 11 of the stringer, and the mounting hardware 5 is fixed to the support hardware 11 or the like. A screw structure is preferable for this fixing, and a nut is screwed onto a bolt (mounting metal fitting) inserted through the supporting metal fitting 11, and this nut is tightened from the underside of the supporting metal fitting. Of course, this does not exclude other fixing structures, such as locking, welding, adhesive structures, etc., but the bolt-and-nut structure is suitable for on-site construction.

Next, asbestos slate for the riser was installed, and then
Install the lower step board.

[Effect of idea]

According to the present invention, it is possible to reinforce the strength of stairs using extruded panels as tiers and to simplify the mounting hardware. In addition, stairs using extruded panels as tiers can be constructed easily in a short construction period using a dry method.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the staircase of the present invention;
The figure is a partially cutaway partial perspective view of the stepped plate of the present invention. 1... Stairs, 2... Extruded panel, 3... Hollow hole, 4... Reinforcement material, 5... Mounting metal fittings, 10...
String girder, 11...Support hardware.

Claims (1)

[Scope of utility model registration request] A dry staircase characterized by tiers made of hollow extruded panels with reinforcing material inserted into the hollow part.