Chairs and seats – Convertible – Alternately usable seat mounts
Reexamination Certificate
2000-08-17
2001-05-29
Nelson, Jr., Milton (Department: 3636)
Chairs and seats
Convertible
Alternately usable seat mounts
C297S423400
Reexamination Certificate
active
06237996
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of Invention
The present invention relates to a seat mounted on highchair, stroller, or swing capable of being detached therefrom to serve as an independent chair.
2. Related Art
Conventionally, a seat is provided on highchair, stroller, or swing for providing some degree of comfort to infant seated thereon. Typically, a footrest either detachable or fixed is coupled to the seat. In detail, as for fixed seat two tubes or a plate thereof are (or is) threadedly secured to front legs, or alternatively the footrest being integrally formed with seat. Also, a seat may be detached from highchair, stroller or swing to serve as seat on automobile. However, such detached seat may not serve as an independent chair to stand on a supporting ground. For example, U.S. Pat. No. 5,951,102 discloses a chair comprising a seat having a seat portion and a back portion, a seat support, and a frame having a plurality of front legs, rear legs, and hinges. It also discloses following components. For example, two elongate projections inserted into holes in the rear of seat, a hook on the front underside of seat, a wing plate beneath either arm, and rotational means. Seat support for supporting seat comprises second hinges and rectangular tubes having bends near legs and coupled to second hinges on the front. The hook is hooked on tube. The second hinge is abutted on the front edge of the wing plate. The rotational means is provided on second hinge to rotate. The hinge of frame is pivotably coupled to the ends of front and rear legs. The second hinge of seat support is pivotably coupled to front leg. Seat support is movable along front leg by pressing the rotational means.
But above patent is unsatisfactory for the purpose for which the invention is concerned because seat can not stand on ground on its own after being detached from seat support.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide a detachable seat comprising a movable curve member capable of being in a first position when curve member is extended away from the seat to serve as footrest or a second position when curve member is beneath seat such that curve member and seat together are supported on the ground to serve as an independent chair.
The advantages of the present invention are realized by providing a detachable seat wherein in the first position, wing plate is snapped in apertures of the curve member passing through the rectangular opening in the front lower portion of seat, and curve member is restrained from pivoting counterclockwise any further when infant's feet are placed on footrest of the curve member since the pivot of the curve member is restrained by pin, thereby securing the curve member; and in the second position, footrest of the curve member is received in the rectangular opening of the seat, and engagement portion of curve member is engaged with the triangular wing plate beneath the seat such that the seat is stably supported on the ground.
Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.
REFERENCES:
patent: 505083 (1893-09-01), Ausman
patent: 2484803 (1949-10-01), Bell et al.
patent: 2881824 (1959-04-01), Herrmann
patent: 4786064 (1988-11-01), Baghdasarian
patent: 5335968 (1994-08-01), Sheridan et al.
patent: 6074007 (2000-06-01), Helmsderfer et al.
Chang Ling-Chuan
Chen Er-Jui
Yang Cheng-Fan
Jr. Milton Nelson
Liauh W. Wayne
Link Treasure Limited
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