发明名称 Adirondack chair with double fulcrum
摘要 Collapsible chairs and related chair systems. An exemplary chair includes a base member comprising a seat surface configured to support a user sitting thereon, a back supporting member behind the seat surface configured to support a user's back when a user is seated, and parallel first and second side members each including first and second fulcrums. The first fulcrums connect the side members to the base member disposed therebetween. The second fulcrums connect the side members to the back supporting member disposed therebetween. The side members define a frame within which the back supporting member and the base member may be rotated about their respective fulcrums. The fulcrums allow the chair to be collapsed to a more compact configuration (e.g., for storage).
申请公布号 US8814261(B2) 申请公布日期 2014.08.26
申请号 US201113082651 申请日期 2011.04.08
申请人 发明人 Chamberlain Stephen L.;Chamberlain Amber D.
分类号 A47C4/04;A47C4/00;A47C7/50;A47C7/54;A47C4/08 主分类号 A47C4/04
代理机构 Workman Nydegger 代理人 Workman Nydegger
主权项 1. A lounge chair comprising: a base member comprising a seat surface configured to support a user sitting thereon; a back supporting member behind the seat surface, the back supporting member being configured to support a user's back when a user is seated on the seat surface; and a first side member including first and second fulcrums, the first side member being connected to a side of the base member through the first fulcrum and the first side member also being connected to a side of the back supporting member only through the second fulcrum, the second fulcrum being is spaced apart from the first fulcrum; a second side member including first and second spaced apart fulcrums aligned with the first and second fulcrums of the first side member, respectively, the second side member being connected to the base member through the first fulcrum and the second side member also being connected to the back supporting member through the second fulcrum, the second side member being substantially parallel to and oppositely disposed relative to the first side member so as to be connected to an opposite side of the base member and the back supporting member; the entire back supporting member being pivotable about the second fulcrums, and the base member being pivotable about the first fulcrums to collapse the chair to a more compact configuration for storage; wherein both side members are substantially straight, wherein the first fulcrums of the first and second side members are disposed at about a center of each side member, the second fulcrums of the first and second side members are disposed near a top end of each side member, and oppositely disposed bottom ends of each side member serve as front legs of the chair that support the chair on a surface; wherein the base member is substantially straight and comprises a front end, a central portion, and a back end, the seat surface being disposed at the front end of the base member, the first and second side members being connected to the central portion of the base member through the first fulcrums, and the back end of the base member serving as back legs of the chair that support the chair on a surface; a leg rest assembly comprising: a leg rest member hingedly connected to the base member so that the leg rest member is disposed in front of the seat surface of the base member and can be selectively rotated under the seat surface of the base member; andopposing leg rest member support legs each extending from a first free end to an oppositely disposed second end that is hingedly connected to the leg rest member so that the opposing support legs of the leg rest assembly can be pivoted so that the free end of each support leg extends downward so as to serve as legs of the leg rest assembly that support the leg rest assembly on a surface; and opposing arm rest assemblies connected to the side members, each arm rest assembly including a substantially horizontal arm rest member extending between a first free end and an opposite second end connected to a respective side member at the second fulcrum, each arm rest assembly further comprising a selectively positionable support member having a free first end that is positionable within a slot near the first free end of the corresponding arm rest member, an oppositely disposed second end of the support member being connected to a respective side member at the first fulcrum.
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