Chairs and seats – Movable bottom – Movable independently of back
Patent
1997-01-31
1998-02-24
Cuomo, Peter M.
Chairs and seats
Movable bottom
Movable independently of back
29734421, 29734426, 472 14, 108 94, 108 95, 2481884, 248415, A47C 318, A47C 320
Patent
active
057205248
ABSTRACT:
A combination toy and stool is provided that rotates and simultaneously lowers when a child sits on the seat. When the seat lowers fully, the invention can be used as a stool. The invention includes a stool seat that has a helically grooved or twisted central shaft extending below the seat, and a plurality of support shafts spaced about the central shaft also extending below the seat. The seat sets onto a pedestal that incorporates an upper and a lower member that rotate relative to each other similar to a "lazy susan". The upper pedestal member has a plurality of upward extending tubular members that receive the support shafts that extend below the seat. The lower pedestal member has an upward extending central shaft that extends through the center of the upper pedestal member and receives the twisted central shaft of the seat in a vertical aperture in the central shaft. The vertical aperture of the upward extending central shaft includes a plurality of positioned ball bearings that engage the twisted shaft of the seat, and cause the seat to rotate as it lowers into the central shaft of the lower pedestal member. The rotating seat causes the upper pedestal member to rotate by contact between the downward extending shafts of the seat and the upward extending tubular members of the upper pedestal member. A child sitting on the seat can thus place his/her feet on the upper pedestal member, which will rotate in unison with the seat. When the seat reaches the end of its lowering movement, the invention can be used as a stool. When the child stands up, the seat can be automatically raised to the starting position, by one or more springs in one or more of the upward extending tubular members, to repeat the rotation and lowering action.
REFERENCES:
patent: 556566 (1896-03-01), Stevens
patent: 732227 (1903-06-01), Shafer et al.
patent: 2010306 (1935-08-01), Leech
patent: 2523817 (1950-09-01), Conley et al.
patent: 4234152 (1980-11-01), Browse
patent: 4334482 (1982-06-01), Boldue
patent: 4570547 (1986-02-01), Colby
Barfield Anthony D.
Cuomo Peter M.
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