FR2632506A3 - CHASSIS OF TRANSFORMABLE CHAIR SEAT IN ARMCHAIR AND INVERT - Google Patents

Abstract

This frame comprises a support 1, a horizontal frame 2 on which is fixed the part 3 forming a seat, a pair of front legs 4 integral with the frame and a backrest 5 fixed to parts 6 of the support which extend from the rear legs 7. It comprises in addition a pair of armrests 10 which can be associated with the support by means of elements provided on the upper ends of the front legs and of said parts 6.

Description

CHASSIS OF TRANSFORMABLE CHAIR SEAT IN ARMCHAIR AND

CONVERSELY.

  The invention relates to a seat frame for

  turn this one from chair to chair and vice versa.

  In this context, the term "chair" is intended to denote a seat comprising a support structure equipped with feet, a portion forming the actual seat, substantially horizontal, integral with said support structure, and a backrest itself secured to the support structure, and by the word "chair" a seat of structure substantially the same as that of the chair, but with the addition of a

pair of armrests.

  In the arrangement of modern premises, particularly offices, said supporting structure is commonly a chromed or glazed metal tubular structure, or is

  made of other materials such as wood, a material

  re plastic, aluminum, etc ..., and carries said seat portion attached to a horizontal frame secured to the feet, while the folder is attached to parts of the

  structure extending upwards the rear feet to-

above the horizontal frame.

  In the particular case of an armchair, the horizontal frame supporting the seat portion has appendages on the side of the front legs and on each of these appendages is anchored an end portion of an associated armrest whose other end portion is anchored on the higher end

  of the parts extending upwards

laughing chair.

  In conventional armchairs structure as described above, the armrests are secured to the support structure by means of screws, rivets or similar means not allowing the armrests to be removed, if

  this is desired, in a fast way.

  The present invention aims to provide a seat frame whose structure allows it to be transformed from chair to chair, and vice versa, in a fast way,

  without the need for a tool.

  The seat frame according to the invention comprises a support structure, a horizontal frame integral with this structure

  and on which is fixed a piece forming the seat proper-

  In other words, a pair of anterior feet, external to the

  meter of said seat member and integral with the horizontal frame, and a backrest attached to portions of said support structure which extend upward the rear seat legs, above said horizontal frame, and is characterized in that has a pair of armrests

  may be associated with said medium support structure

  the engagement - without the intervention of screws or similar means of elements provided on each end of the armrests with the upper ends of said front legs and said parts extending upwards

hind legs of the seat.

  The invention is illustrated by way of non-limiting example in the figures of the accompanying drawings, where:

  Figure 1 shows a seat frame according to the invention.

  in its "chair" version; Figure 2 shows the same seat frame in its "chair" version; Figure 3 illustrates the operation of removing and placing an armrest performed on a seat frame according to the invention; and FIG. 4 shows, on a larger scale, the means preferably used for rapid implementation.

an armrest.

  Referring to the above figures, it will be seen that, generally speaking, a metal tubular support structure comprising a horizontal frame has been designated by 1.

  2 on which a seat part 3 is fixed. The reference

  number 4 means fore feet, external to the perimeter

  said seat member 3, and a backrest attached to portions 6 extending rear legs 7 to the

  above, above said horizontal frame 2.

  The vertices 8 of the front legs 4 and the vertices 9 of the extended parts 6 may each be closed by a removable cap (not shown) that can be introduced

  in the cavity delimited respectively by the tubes constituting

  locating said feet and said extended portions.

  As can be seen in particular in FIGS. 3 and 4, armrests 10 comprise, at each end, a stud 11 capable of being engaged in a sheath 12 fitted to

  force in the cavity defined by said fore legs

  4 and said parts extended upwards.

  According to an equivalent embodiment variant, not illustrated, the stud 11 may be replaced by a hole in the ends of the armrests 10, which ends are thus likely to cap the corresponding vertices of the

  fore feet 4 and extended parts 6.

  According to what has just been described, it can be seen that the seat frame according to the invention makes it possible to transform it from the chair version to the chair version, and conversely, as needed, in a simple and fast manner. without being

  necessary to use tools.

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Claims (3)

claims   1. A seat frame comprising a support structure (1), a horizontal frame (2) integral with said support structure and on which is fixed a piece forming the seat (3) itself, a pair of front legs (4) external to the perimeter of said seat piece and secured to said horizontal frame, and a backrest (5) attached to portions (6) of said support structure which extend upwardly from the back legs (7) extending above of said horizontal frame, characterized in that it comprises a pair of armrests (10)   may be associated with said medium support structure   commitment - without the use of screws or similar   elements (11) respectively provided on each end of the armrests, with the upper ends of said front legs and said parts extending   upwards said hind feet (7).   2. A seat frame according to claim 1, characterized in that said elements provided on each end of the armrests are studs (11) which can be respectively introduced into a cavity which define at their vertices said front legs and said parts. extended upwards.   3. A seat frame according to claim 1, characterized in that said elements provided on each end of the armrests are constituted by female parts allowing said ends to closely overlie said tops of the front legs and parts extended upwards.