US 5,738,408 AGranted

Stackable folding chair

OwnerHenry Wuinventor

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Abstract

A plurality of stackable folding chairs having two sets of legs pivotally attached to each other and a seat pivotally attached thereto. Indentations are formed in a first side of one of the two sets of legs and a protrusion is formed on a second side of the legs at approximately the same location. The chairs are configured to be folded so as to be substantially planar in configuration with the indentations and the protrusions exposed. The protrusions of a first chair can then be positioned within the indentations of a second chair so that the first and second chairs are positioned adjacent each other in a stacked configuration. The indentations preferably have an outer region that has a greater cross sectional area than the protrusions thereby facilitating positioning of the protrusion within the indentations and a second inner region having a cross sectional area that is configured so that the protrusion is flushly positioned within the inner region to thereby substantially prevent relative movement between the first and second chairs when the first and second chairs are in the stacked configuration.

Claims15

Dependent claims

A first stackable folding chair of a plurality of substantially identical stackable folding chairs, which comprises:

a first set of leg members that are connected to each other to maintain a first spaced distance from each other;
a second set of leg members that are connected to each other to maintain a second spaced distance from each other wherein said second set of leg members are pivotally connected to said first set of leg members so that said first and said second set of leg members can be positioned with a bottom end of each member spaced from each other to thereby retain said stackable chair in an upright position;
a seat coupled to said leg members that is configured to receive a person in a sitting position when said stackable chair is in said upright position wherein said first set of leg members, said second set of leg members and said seat can be oriented into a stackable configuration;
one or more protrusions integrally formed on a first face of at least one of said first set of leg members so as to extend outward from said first face of said at least one of said leg members said protrusions having a first shape and a first cross-sectional area;
and
one or more indentations integrally formed on a second face of at least one of said first set of leg members so as to be positioned opposite said one or more protrusions, wherein said one or more indentations include a first region positioned adjacent the second face of said leg member having a cross-sectioned area greater than said first cross-sectional area of said protrusion and having a second region positioned inward of said first region that has a cross-sectional area substantially equal to said first cross-sectional area of said protrusion wherein said one or more indentations are configured to receive said one or more protrusions on a second stackable chair of said plurality of substantially identical stackable chairs so that a user stacking said first and second chairs can initially position said protrusions in said first region of said indentations and then subsequently slightly move said first and said second chairs relative to each other to thereby position said protrusions on said second chair into said first region of said indentations in said first chair so that said second chair and said first chair can be stacked together.

3 more elements

A first stackable folding chair of a plurality of substantially identical stackable folding chairs, which comprises:

a first set of leg members that are connected to each other to maintain a first spaced distance from each other;
a second set of leg members that are connected to each other to maintain a second spaced distance form each other wherein said second set of leg members are pivotally connected to said first set of leg members so that said first and said second set of leg members can be positioned with a bottom end of each member spaced from each other to thereby retain said stackable chair in an upright position;
a seat frame that is coupled to one of said first or second sets of leg members that defines an opening having an inner face wherein the seat frame includes two grooves formed in said inner face of said seat frame wherein said two grooves extend in a first direction and have an opening of a first width at a first end and said grooves narrow in a direction towards said second end;
one or more protrusions formed on said first set of leg members;
a seat cushion that is positionable in the opening in the seat frame wherein said seat cushion includes a mounting bracket that defines two tabs located at outer ends of the mounting bracket wherein said two grooves in said seat frame are configured to receive said two mounting tabs so that said mounting tabs can be positioned in said grooves and thereby retain said seat cushion on said seat frame wherein said narrowing of said grooves retain said tabs in said grooves and thereby retain said seat cushion in said seat frame so that said seat cushion and said seat frame can receive a person in a sitting position when said stackable chair is in said upright position;
and
one or more indentations integrally formed on a second face of at least one of said leg members so as to be positioned opposite said one or more protrusions, wherein said one or more indentations are configured to receive said one or more protrusions on a second stackable chair of said plurality of substantially identical stackable chairs so that said second chair and said first chair can be stacked together.

4 more elements

Dependencies are inferred from the claim text.