Chairs and seats – Collapsible chair; i.e. – relatively folding bottom – back,... – With means to hold chair in plural operative configurations
Patent
1998-06-12
1999-08-03
Nelson, Jr., Milton
Chairs and seats
Collapsible chair; i.e., relatively folding bottom, back,...
With means to hold chair in plural operative configurations
297 35, 297 31, 297377, 297359, A47C 400
Patent
active
059315261
ABSTRACT:
A chair frame includes a backrest frame, a seat frame pivoted to the backrest frame about a first pivot axis, and a rear leg frame extending downwardly from the rear end portion of the seat frame. A regulating seat is mounted on the rear leg frame and has two opposite side walls that define an elongated slot therebetween. One of the side walls is formed with a plurality of engaging grooves that open toward the elongated slot. An armrest frame has a front section extending forwardly of the backrest frame, and a rear section that extends rearwardly and downwardly of the backrest frame and that is pivoted to the backrest frame about a second pivot axis above the first pivot axis. The armrest frame is provided with an engaging member that extends slidably into the elongated slot for engaging a selected one of the engaging grooves. The armrest frame is operable to move the engaging rod between a first position, in which the engaging member is movable along the elongated slot to permit forward and rearward pivoting movement of the backrest frame about the first pivot axis, and a second position, in which the engaging member engages the selected engaging groove to support the backrest frame at a desired inclination relative to the seat frame.
REFERENCES:
patent: 2097500 (1937-11-01), Oermann
patent: 2638970 (1953-05-01), Harber
patent: 2776704 (1957-01-01), Moore et al.
patent: 2812013 (1957-11-01), Kreciglowa
patent: 4474407 (1984-10-01), Nazar
patent: 4514009 (1985-04-01), Vanderminden et al.
patent: 5282664 (1994-02-01), Tseng
patent: 5310246 (1994-05-01), Tseng
patent: 5613737 (1997-03-01), Tseng
Jr. Milton Nelson
Shin Yen Enterprise Co. Ltd.
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