Chair construction
First Claim
1. A chair back assembly, comprising:
- a frame assembly including a pair of slots extending through the frame assembly, a first location positioned between the pair of slots, and a pair of second locations located outward of an outer periphery of the frame assembly; and
a vertically adjustable lumbar assembly configured to support a lumbar area of a seated user and including a central portion and a pair of end portions slidably engaging the central portion, the central portion located in the first location and the end portions located in the second locations, wherein the pair of end portions are slidably moveable within the slots between a first position and a second position that is different than the first position, and wherein a lateral distance between the pair of slots changes along a length of the pair of slots such that movement of the end portions between the first and second positions causes at least one of the end portions to slide with respect to the central portion.
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Accused Products
Abstract
A chair back assembly includes a frame assembly including a pair of slots extending through the frame assembly, a first location positioned between the pair of slots, and a pair of second locations located outward of an outer periphery of the frame assembly, and a vertically adjustable lumbar assembly configured to support a lumbar area of a seated user and including a central portion and a pair of end portions slidably engaging the central portion, the central portion located in the first location and the end portions located in the second locations, wherein the pair of end portion are slidably moveable within the slots between a first position and a second position that is different than the first position.
312 Citations
20 Claims
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1. A chair back assembly, comprising:
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a frame assembly including a pair of slots extending through the frame assembly, a first location positioned between the pair of slots, and a pair of second locations located outward of an outer periphery of the frame assembly; and a vertically adjustable lumbar assembly configured to support a lumbar area of a seated user and including a central portion and a pair of end portions slidably engaging the central portion, the central portion located in the first location and the end portions located in the second locations, wherein the pair of end portions are slidably moveable within the slots between a first position and a second position that is different than the first position, and wherein a lateral distance between the pair of slots changes along a length of the pair of slots such that movement of the end portions between the first and second positions causes at least one of the end portions to slide with respect to the central portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A chair back assembly, comprising:
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a frame assembly including a first side and a second side laterally spaced from the first side; and a lumbar assembly, comprising; a shell including a forward surface configured to support a seated user, a rear surface opposite the forward surface, a first end, a second end opposite the first end, and a pair of interior pockets extending between the first end and the second end; and a pair of leaf springs separate from and spaced from one another and located within the pair of interior pockets, wherein the pair of leaf springs extend between the first end and the second end of the shell and are configured to bias the forward surface of the shell in a forward direction, and wherein the forward surface of the shell overlays a majority of the pair of leaf springs. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A chair back assembly, comprising:
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a substantially rigid frame including a first side including a first slot extending therethrough and second side laterally spaced from the first side and including a second slot extending therethrough, wherein a lateral distance between the pair of slots changes along a length of the pair of slots, and wherein the frame defines a central opening; a substantially flexible back shell member coupled to the frame and configured to support a seated user; and a vertically adjustable lumbar assembly, comprising; a lumbar shell including a forward surface configured to support a lumbar area of a seated user, a rear surface opposite the forward surface, a central portion having a first end and a second end opposite the first end, a pair of interior pockets extending between the first end and the second end, wherein the lumbar shell is positioned within the central opening of the frame; a pair of handles slidably coupled to the first end and the second end and configured to be grasped by a user, wherein the pair of handles are positioned outside of the central opening of the frame; including central portion and a pair of end portions slidably engaging the central portion, the central portion located in the first location and the end portions located in the second locations, wherein the pair of end portion are slidably moveable within the slots between a first position and a second position that is different than the first position; and a pair of leaf springs located within the pair of interior pockets, wherein the pair of leaf springs extend between the first end and the second end of the lumbar shell and are configured to bias the forward surface of the lumbar shell in a forward direction. - View Dependent Claims (20)
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Specification