Prefabricated staircase and finishing arrangement and installation method therefor

Abstract

A staircase of skeletal form is prefabricated and is provided with prefabricated decorative cladding finishing plates for the treads, the risers and the stringer boards, the plates being pre-drilled for ease of assembly, a plurality of finishing plates can be preassembled, or factory assembled, together before installation over a portion of the prefabricated staircase, and the installation method thereof.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]Benefit of U.S. Provisional Application for Patent Ser. No. 61 / 213,560 filed on Jun. 19, 2009, and of U.S. Provisional Application for Patent Ser. No. 61 / 344,060 filed on May 17, 2010, both of which being incorporated herein by reference, is hereby claimed.FIELD OF THE INVENTION[0002]The present invention concerns a prefabricated staircase and finishing plate arrangement therefore and method for installing same.BACKGROUND OF THE INVENTION[0003]It is well known in the art to provide finishing plates of finished wood or other material for unfinished treads, risers, and / or stringers of an unfinished staircase frame. Typically, the plates are installed after the unfinished staircase frame has been installed in the building. In general, for each tread and riser, the tread is measured by a workman and a corresponding finished tread plate and riser plate is cut, fitted and then secured to the tread and riser of the frame. Similarly, a finished s...

AI Technical Summary

Benefits of technology

[0007]An advantage of the present invention is that the staircase and finishing plates therefor are prefabricated, thus reducing manual labour required for cutting and fixing the staircase frame and the finishing plates.

[0008]Another advantage of the present invention is that the staircase frame and plates are easily installed, with a minimum of tools.

[0009]Another advantage of the present invention is that the plates are pre-sized to the correct size and shape for fitting to the prefabricated staircase frame, thus reducing risk of errors and damage.

[0010]Still another advantage of the present invention is that the staircase frame and plates may be installed in less time than for conventional plates and staircases.

[0011]A further advantage of the present invention is that the finishing plate arrangement for covering a plurality of adjacent steps of a prefabricated staircase frame can be preassembled, or factory assembled, to improve assembly quality and reduce cost thereof, since the dimensions of the prefabricated staircase frame are well known.

[0012]In a first aspect, the present invention provides a staircase finishing kit for installation over at least a portion of a prefabricated staircase frame having at least one vertical riser, at least one horizontal tread, the frame being connectable at opposing frame ends thereof to first and second floor structures of a building with the frame extending therebetween, the kit comprising:

Problems solved by technology

Unfortunately, for such conventional staircases and finishing plates, the measuring, cutting, and fitting of the finishing plates must often be performed by workmen on-site at the building and require skilled workmen to ensure a nice finish, especially at the intersection corner between riser plates and a staircase open side stringer plate.

Accordingly, installation is labour intensive and, therefore, costly.

Additionally, as the sizing and fitting of the plates may involve substantial manual cutting of the plates on site, there is a risk of error in cutting and sizing, which may further increase costs.

Finally, the cutting, sizing, and fitting of the plates on site in the building further increases risk of damage to the plates.

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