ARTICLE OF FURNITURE

• US 3,591,233 A
• Filed: 01/08/1969
• Issued: 07/06/1971
• Est. Priority Date: 06/17/1968
• Status: Expired due to Term

• Current Assignee: Christian H. Turcksin
• Original Assignee: Christian H. Turcksin
• Inventors: Turcksin, Christian H.
• Application Number:
  US04/789,832
• Time in Patent Office: 909 Days
• US Class Current: 297/440.11
• CPC Class Codes: A47C 1/02 Reclining or easy chairs supports for parts of body A47C7/36, A47C7/50, A47C7/54
• CPC Class Codes: A47C 1/03261 characterised by elastic means
• CPC Class Codes: A47C 3/0255 pivotally mounted in the base frame, e.g. swings
• CPC Class Codes: A47C 7/14 of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions movably-coupled seat and backrests with elastic adjustment means A47C1/03261; elastically-mounted back-rests or backrest-seat units in the base frame A47C7/44
• CPC Class Codes: A47C 7/44 with elastically-mounted back-rest or backrest-seat unit in the base frame

Abstract

An article of furniture, such as a chair, comprising: a base frame formed from at least two spaced-apart side sections interconnected by at least one cross-strut; at least one back and seat unit universally displaceable between said side sections by the suspension of said back and seat unit between said side sections by means of at least one elastic sheet secured at at least one end to at least one side section and being in supporting engagement with said back and seat unit and optionally provided with an elastic retaining strip securable at one end to said back seat unit and at its other end to a cross-strut in the front region of said base frame so as to limit the rising movement of the front of said back and seat unit when loaded.

Claims

1. An article of furniture, such as a chair, comprising:

a base frame formed from at least two spaced apart side sections interconnected by at least one cross-strut;

at least one back and seat unit comprising a rigid angle frame carrying resilient seat and back cushioning means in planes arranged at an obtuse angle relative to each other; and

means for resiliently suspending said back and seat unit from said base frame to allow universal displacement of said back and seat unit relative to said base frame consisting of at least one elastic sheet having one end attached to said rigid angle frame adjacent the seat portion of said angle frame and an opposite end attached to one of said side sections, thereby to allow universal displacement of said back and seat unit relative to said base frame.

2. An article according to claim 1 wherein said means for resiliently suspending said back and seat unit comprises elastic sheet means having edges attached to said back and seat unit and opposite edges attached to portions of said side sections of said base frame which form arm rests, whereby said back and seat unit is resiliently suspended from said arm rest portions of said article of furniture.

3. An article of furniture according to claim 1 wherein at least one elastic sheet extending almost over the entire depth of the seat and at least one auxiliary elastic strip associated with the sheet in the rear area of the seat are provided for the universally displaceable suspension of said back and seat unit between said two side members, said auxiliary strip being longer than said elastic sheet for delayed spring action when said seat and back unit is loaded.

4. An article of furniture according to claim 1 wherein each side section is of a substantially U-shaped form with one lower shank thereof forming a supporting surface, the other upper shank forming an arm and the crosspiece forming a leg and wherein each side section comprises two telescopic interconnectable U-shaped members, one U-shaped member being provided in the region of said arm (upper shank) with a recess such as a longitudinal slot through which one end of said elastic sheet passes and is secured, by means of terminal reinforcements of said elastic sheet, between the inner and outer telescopic U-shaped members of said side members.

5. An article according to claim 1 having an elastic retaining strip extending across the front of said seat portion of said angle frame, said elastic retaining strip having one end connected to said back and seat unit and an opposite end connected to said base frame, thereby to resiliently oppose upward movement of the front edge of said seat portion of said back and seat unit.

6. An article of furniture according to claim 5 wherein said back and seat unit comprises a framework having at least one elastic sheet, tube or the like cover drawn thereover and said elastic sheet is securable at one end by means of screws or the like between a portion of said side section forming an arm and an arm ledge and at its other end by vulcanizing to said elastic sheet, tube or the like drawn over said seat frame;

and wherein said retaining strip is connected at one end to the back and seat cover by vulcanizing or mechanical means and at its other end, formed as a tubular portion, is optionally retained on said cross-strut.

7. An article of furniture according to claim 6 wherein said elastic sheet is secured at at least one end to at least one side section above the plane of the seat portion.

8. An article of furniture according to claim 6 wherein said elastic sheet consists of a web which is elastic in one direction and has elastic threads extending in the direction of the center longitudinal plane of the chair (axis of symmetry).

9. An article of furniture according to claim 8 wherein said elastic web is of a fabric whose warp and/or weft threads preferably have at least in part, cores of vulcanized rubber threads round which textile threads are spirally wound.

10. An article of furniture according to claim l wherein each side section is of a substantially U-shaped form with the U-shanks being formed as legs and the crosspiece thereof as an arm and wherein each side section comprises two telescopic interconnectable U-shaped members, one U-shaped member being provided in the region of said arm (crosspiece) with a recess such as a longitudinal slot through which one end of said elastic sheet passes and is secured, by means of terminal reinforcements of said elastic sheet, between the inner and outer telescopic U-shaped members of said side members.

11. An article of furniture according to claim 10 wherein said reinforcements, formed at the end of said elastic sheet comprises a tubular portion capable of optionally receiving retaining a rod therethrough, the cross section of which retaining rod being greater than the width of said slot to prevent undesired withdrawal of said end from said recess.