Chair, stool assembly, and system

Patent metadata

Field	Value
Publication number	US-10136730-B2
Application number	US-201715434169-A
Country	US
Kind code	B2
Filing date	Feb 16, 2017
Priority date	Feb 19, 2016
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

A chair including structural members having hinge joints at ends thereof pivotally coupling each of the members to one or more adjoining members. The chair is configured to be arranged in a collapsed configuration wherein all of the members are in the same plane and define a substantially planar shape, and configured to be arranged in an expanded configuration to define a seat, armrests, support legs, and leg braces of the chair. A stool assembly includes at least first and second stools configured to be stackable such that the seats of the stools abut face to face and in combination define a composite base. A system for constructing furniture includes multiple joints each having slots configured to receive and retain structural members and configured to be assembled with the structural members to form a piece of furniture with the multiple joints defining corners of the piece of furniture.

First claim

The invention claimed is:

1. A collapsible chair configured to be selectively arranged into collapsed and expanded configurations, the collapsible chair comprising:
multiple rigid structural members having hinge joints at ends thereof pivotally coupling each of the structural members to one or more adjoining structural members, the hinge joints defining parallel axes so that the structural members pivot relative to each other about the parallel axes; and
a flexible material encasing each of the structural members, the hinge joints being provided solely by the flexible material between the ends of the structural members;
wherein the collapsible chair is configured to be arranged in the collapsed configuration wherein all of the structural members are in the same plane and define a substantially planar shape, and configured to be arranged in the expanded configuration wherein a first group of the structural members define a seat, a front set of support legs, and armrests of the collapsible chair and expand in a first outward direction relative to the plane of the structural members in the collapsed configuration, and a second group of the structural members that define a rear set of support legs and leg braces connecting the front and rear set of support legs of the collapsible chair and expand in a second direction that is generally opposite the first outward direction, wherein the hinge joints enable the structural members to pivot about the parallel axes relative to the one or more adjoining structural members so that the collapsible chair can be selectively collapsed and expanded between the collapsed and expanded configurations.

2. The collapsible chair of claim 1 , wherein the second group of the structural members further define a back rest.

3. The collapsible chair of claim 1 , wherein the seat, front set of support legs, armrests, rear set of support legs, and leg braces are integral components of the collapsible chair.

4. The collapsible chair of claim 1 , wherein the flexible material includes inner and outer layers and the inner and outer layers are secured to one another at the hinge joints.

5. The collapsible chair of claim 4 , wherein the inner and outer layers are each continuous over a respective side of the collapsible chair.

6. The collapsible chair of claim 1 , further comprising:
a brace configured to maintain the collapsible chair in at least the expanded configuration.

7. A method of reconfiguring a collapsible chair claim 1 , the method comprising:
providing a collapsible chair, wherein the collapsible chair comprises:
multiple rigid structural members having hinge joints at ends thereof pivotally coupling each of the structural members to one or more adjoining structural members, the hinge joints defining parallel axes so that the structural members pivot relative to each other about the parallel axes; and
a flexible material encasing each of the structural members, the hinge joints being provided solely by the flexible material between the ends of the structural members;
wherein the collapsible chair is configured to be arranged in the collapsed configuration wherein all of the structural members are in the same plane and define a substantially planar shape, and configured to be arranged in the expanded configuration wherein a first group of the structural members define a seat, a front set of support legs, and armrests of the collapsible chair and expand in a first outward direction relative to the plane of the structural members in the collapsed configuration, and a second group of the structural members that define a rear set of support legs and leg braces connecting the front and rear set of support legs of the collapsible chair and expand in a second direction that is generally opposite the first outward direction, wherein the hinge joints enable the structural members to pivot about the parallel axes relative to the one or more adjoining structural members so that the collapsible chair can be selectively collapsed and expanded between the collapsed and expanded configurations,

unfolding the collapsible chair from the collapsed configuration to the expanded configuration; and then
folding the collapsible chair to return the collapsible chair to the collapsed configuration.

Assignees

• Purdue Research Foundation

Inventors

• Kim Tong Jin

Classifications

• A47C5/005

  of paper, cardboard or similar pliable material · CPC title

• A47C11/00

  Benches not otherwise provided for · CPC title

• A47C3/04

  Stackable chairs or nesting chairs · CPC title

• A47C4/02

  Dismountable chairs · CPC title

• A47C9/00

  Stools for specified purposes · CPC title