Amusement devices – Swing
Reexamination Certificate
2003-02-26
2003-11-18
Nguyen, Kien T. (Department: 3712)
Amusement devices
Swing
C472S125000, C297S354130, C005S037100
Reexamination Certificate
active
06648768
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a swing, more particularly to a swing assembly that has a seat back, which is adjustable between a horizontal position and an inclined position.
2. Description of the Related Art
Referring to
FIG. 1
, a conventional swing assembly
1
is shown to include a support unit
11
, a pair of left and right hanging units
12
, and a swingable seat unit
13
. The support unit
11
includes a pair of left and right leg frames
111
, a horizontal support rod
112
having two ends that are connected respectively and fixedly to top ends of the left and right leg frames
111
, and two inclined hanging plates
113
, each of which is connected fixedly to the horizontal support rod
112
and a respective one of the left and right leg frames
111
. Each of the hanging units
12
includes a resilient member
121
fastened to the corresponding hanging plate
113
, and two hanging rods
122
having top ends fastened to the resilient member
121
. The seat unit
13
includes a pair of left and right armrest members
131
, a seat portion
132
fixed between the left and right armrest members
131
, and a back portion
133
fixed on a rear side of the seat portion
132
so that a user cannot lie substantially flat on the seat portion
132
. Furthermore, the seat unit
13
is swingable, and is not fixed relative to the ground, thereby resulting in limited use of the conventional swing assembly
1
.
SUMMARY OF THE INVENTION
An object of this invention is to provide a swing assembly, which includes a seat back that is adjustable between a horizontal position, where the user can lie substantially flat on the swing assembly, and an inclined position, where the user can sit on the swing assembly.
Another object of this invention is to provide a swing assembly, which includes a swingable seat unit and a seat-positioning unit that is operable to prevent swinging movement of the seat unit relative to a support unit.
According to this invention, a swing assembly includes a swing frame unit disposed swingably on a support unit, and a seat unit connected to the swing frame unit by means of a pair of left and right linkage units. The seat unit includes a seat and a back that is rotatable relative to the swing frame unit between a horizontal position and an inclined position when the seat is disposed at a horizontal position.
Preferably, a seat-positioning unit is disposed between the swing frame unit and the support unit, and is operable to fix the swing frame unit relative to the support unit.
REFERENCES:
patent: 1214854 (1917-02-01), Weil
patent: 3161893 (1964-12-01), Siler
patent: 4131960 (1979-01-01), Quakenbush
patent: 5103510 (1992-04-01), Thurow
patent: 5271109 (1993-12-01), Markel et al.
patent: 5957780 (1999-09-01), Grazioli
patent: 6135559 (2000-10-01), Kowalski
patent: 6209154 (2001-04-01), Huang
patent: 6348005 (2002-02-01), Tseng
Nguyen Kien T.
Shin Yeh Enterprise Co., Ltd.
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