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US 11,690,456 B2Granted
Folding chairs
AssigneeStannah Stairlifts Limited
InventorAlexander Henry Gage Wilson
Life of this patent
Estimating the term…
Abstract
A folding mechanism for a chair and, in particular, to a stairlift chair, has a seat base, backrest and armrests. The folding mechanism ensures that all parts of the chair remain in a swivel arc whether the chair is in an in-use configuration or folded configuration. Various additional features are described including armrests formed in part by flexible straps.
Claims18
A folding chair comprising:
- a seat base having a forward edge, a rear edge and a pair of spaced side edges extending between said forward edge and said rear edge;
- a backrest;
- and
- a pair of armrests pivotally joined to the side edges of said seat base, each armrest having a proximal end at or adjacent to said backrest, and a distal end,
- said chair further including a linkage connecting said seat base and said armrests, said linkage being configured to regulate displacement of said seat base between a substantially horizontal in-use position and a folded position in which said rear edge is raised relative to said backrest such that the rear edge extends above the proximal end of the pair of armrests, and said front edge is displaced in a folding direction toward said backrest while causing the distal ends of said armrests to be displaced in said folding direction toward said back rest.
2 more elements
A folding chair comprising:
- a seat base having a forward edge, a rear edge and a pair of spaced side edges extending between said forward edge and said rear edge said seat base being displaceable between a substantially horizontal in-use position and a folded position;
- a backrest;
- and
- a pair of armrests, pivotally joined to the side edges of said seat base, said armrests having proximal ends, at or adjacent to said backrest, and distal ends;
- said chair further comprising a linkage connecting said seat base and said armrests, said linkage being configured to cause the distal ends of said armrests to be displaced toward one another as said seat base is displaced along a folding direction into said folded position, such that the rear edge of said seat base extends above the proximal end of the pair of armrests.
2 more elements
Dependencies are inferred from the claim text.