Chair consisting of interlocking elements

Chairs and seats – Having detachably interfitting parts or components; i.e.,... – Slotted components normal to each other

Reexamination Certificate

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Details

C297S440150

Reexamination Certificate

active

06189974

ABSTRACT:

The invention described herein concerns a seat comprising a number of interlocking components including side uprights, a seat piece and a back, a primary interlocking system allowing the side uprights to be fixed to the seat piece in a roughly perpendicular fashion, a second interlocking system allowing the seat piece to be fixed roughly perpendicular to the back.
Seats which can be fitted together and taken apart are commonplace within the relevant prior art. Document US-A-3 547 491, for example, shows a seat comprising several interlocking components which can be fitted together. This seat required no additional means of fixing and can be assembled using the different fixing methods.
Other techniques involve the use of screws and nuts to ensure that the seat is stable once assembled. This makes for more complex assembly and disassembly procedures and, with the large number of component parts used in the assembly, there is a greater risk that some—screws, nuts or plugs, for example—will be mislaid in the process.
Our invention sets out to solve this problem by reducing the number of component parts necessary to hold the seat together when assembled. More particularly, the aim of the invention is to create a seat which, once fully assembled, is held together by a minimum number of fastenings, such as screws and nuts. The assembled seat's stability is, for the most part, ensured by the way in which the different component parts of the seat interlock and by the various fasteners which guarantee correct fitting of these parts.


REFERENCES:
patent: 2534413 (1950-12-01), Cenis
patent: 3547491 (1970-12-01), Bovasso
patent: 4225180 (1980-09-01), Gillis
patent: 4593950 (1986-06-01), Infanti
patent: 4712837 (1987-12-01), Swilley
patent: 4421338 (1996-01-01), None

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