US Patent 9913539 Office chair
Patent 9913539 was granted and assigned to Haworth (company) on March, 2018 by the United States Patent and Trademark Office.
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A back support for a chair includes a chair frame, a pair of upright support posts mounted to the chair frame, the upright support posts being laterally flexible with respect to the chair frame, a plurality of flexible support arms extending laterally outwardly from the upright support posts, the support arms each including a peripheral edge, the support arms including a first set of support arms extending in a first lateral direction from the upright posts and a second set of support arms extending in a second direction from the upright posts; and a material extending in tension between the peripheral edges of the first set of support arms and the peripheral edges of the second set of support arms such that at least a central portion of the material is spaced from the support arms. In addition, a seat support includes a repositionable front edge.
US Patent 09913539 Office chair US Patent 9913539 Office chair
US Patent 09913539 Office chair
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