发明名称 Folding mechanism for folding chair
摘要 A folding chair has a support frame with a back support portion and first and second side supports extending to form front leg members. A seat is pivotally coupled to the support frame, and configured to pivot downwardly with respect to the support frame. First and second rear legs each have an upper member pivotally coupled to a lower member. The lower members are pivotally coupled to the support frame, and the upper members are pivotally coupled to the seat, such that the first and second rear legs include three pivot points and the rear legs fold onto themselves to a shorter length in a closed position. First and second folding systems link the support frame, the fold-down seat, and the rear legs together. The first and second folding systems including four-bar linkage systems with four pivot points and four linkages. At least one stopping member is coupled to the four-bar linkage system shaped and positioned to engage at least one of the linkages of the folding system in an opened unfolded position to provide a limited opened position.
申请公布号 US6305742(B1) 申请公布日期 2001.10.23
申请号 US19990425580 申请日期 1999.10.22
申请人 MITY-LITE, INC. 发明人 SPENDLOVE DALE;ATKINS L. E. TOM
分类号 A47C4/24;(IPC1-7):A47C4/00 主分类号 A47C4/24
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