FR2489681A1 - DETACHABLE CHAIR - Google Patents

Abstract

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

Description

The invention relates to a chair which has been provided with certain

  improvements to improve its construction and assembly, which makes it possible to obtain, by means of simple elements, a chair of great

  resistance and careful realization.

  Its fundamental characteristics consist in the constitution of the elements that compose it, that is to say three frames, one of which presents the shape of an inverted "U" and constitutes by its vertical arms the hind legs, while its closed bottom constitutes the file. This upper closed area is transversely curved and receives internally a small frame which completes the first and which

  really constitutes the file itself.

  The other two frames that complete the first have the shape of a large horizontal stock, open to the front. They have a horizontal side support side of the seat and an upper parallel part for the added armrests, while the main vertical part is located forward to form the front legs, while another vertical part of the stick is parallel to the vertical arms of the first frame, which constitute the

hind legs.

  This posterior portion of the above-mentioned twin-butt area is supported by the vertical portions of the U-shaped portion of the first frame. A connection between the two parts makes it possible to assemble the chair. This link

  is carried out by means of connecting half-collars which surround

  each element, with a central attachment by screw, each connection zone of the half-collar on the corresponding frame being provided with

internal locking points.

  The use of a screw of appropriate constitution and resistance, intended to connect the two parts of the connecting collar, establishes the necessary pressure to obtain the necessary rigidity

  to a resistant mounting of the frames of the chair.

  Other features and advantages of the invention

  will be better understood by reading the following description

  of an exemplary embodiment and with reference to the accompanying drawings, in which: Figure 1 shows a perspective view of each of the elements that constitute the chair, with the exception of the parts that constitute the folder and the seat proper , which are accessories that can be changed. In this figure, one can see the inverted U-shaped frame, whose arms 1 and 2 constitute the rear legs, while the bottom 3 bent transversely constitutes the support area of the folder. Two forks-shaped frames constitute, in an anterior vertical part 4, the front legs, in a horizontal part 5, the bearing surface of the seat, in another rear vertical part 6, the bearing surface on the frame in "U" shape, and finally, in the horizontal portion 7, parallel to the portion 5, the support of the armrests. Complementary elements 8, not essential, collaborate in the connection of the zones 5 and the support of the seat. The connecting piece of elements 1-6 and 2-6 is formed by

  two symmetrical parts 9 and 10 which have semi-cylindrical channels

  dies for receiving respectively the tubular elements.

  Inside these channels have been provided Il fixing points fixed permanently to ensure the attachment to the tubes. An orifice

  12 is intended for the passage of a screw with

  proprieties to definitively fix the position of the necklaces of

connection of the tubes.

  Figure 2 is a perspective view of the chair ready for use. The connecting pieces 9, 10 have been located so as to fix the respective position of the two arms-shaped frames on the U-shaped frame, which allows the seat 13, the

  backrest 14 and the armrests 15 and 16.

  Thanks to screws, the elements are assembled

seat, backrest and armrests.

  Disassembly of these elements as well as the dismounting of the fixing half-collars reduce the volume of the chair so that it can be placed inside a box of

  reduced dimensions specifically provided for its transport.

  Of course, various modifications may be made by those skilled in the art to the devices or processes which have just been described by way of non-limiting example, without departing from the

framework of the invention.

Claims (2)

  1. Advanced chair, characterized in that it consists of three tubular frames, one of which has the shape of a "U" inverted and is constituted by its vertical arms (1, 2) the rear legs and its bottom ( 3) closed the backrest, this upper closed area being transversely curved to receive internally a frame of reduced height, complementary to the surface of the backrest, while each of the other two frames has the shape of a wide horizontal stock open to the part front, which has a lateral horizontal side (5) of seat support and an upper parallel portion (7) for the added armrests (15); while the vertical part of the butt   (4) is located forward to form each front leg.   2. improved chair, according to claim 1, characterized in that the rear curve (6) of the butt of the side frames is parallel to the vertical arms (1, 2) of the first frame in the form of "W", the two parts being interconnected by means of connecting half-collars (9, 10) which independently surround each element, with central fixation by screws, each connecting zone of the half-collar on the corresponding frame being provided with spikes   internal (11) locking fixed permanently.