Chairs and seats – Oscillating suspender connected to or through adjunctive rest – Armrest or side frame-connected
Reexamination Certificate
2003-05-16
2004-04-06
Brown, Peter R. (Department: 3636)
Chairs and seats
Oscillating suspender connected to or through adjunctive rest
Armrest or side frame-connected
C297S320000, C297S322000
Reexamination Certificate
active
06715831
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a swing, more particularly to a swing having seat units with tiltable backrests.
2. Description of the Related Art
Referring to
FIG. 1
, a conventional swing
1
generally includes a seat unit
2
and an upright support frame unit
11
. The support frame unit
11
has left and right support frames
111
and a transverse rod
112
fixed to top ends of the frames
111
. The seat unit
2
includes left and right armrest frames
21
swingably connected to the transverse rod
112
through suspending members
12
, front and rear connecting rods
22
,
23
connected respectively to lower ends of the left and right armrest frames
21
, a seat frame
24
that is disposed between the left and right armrest frames
21
and that is disposed on the front connecting rod
22
, a backrest frame
25
pivoted to the seat frame
24
and disposed on the rear connecting rod
23
, and a U-shaped leg member
26
pivoted to the backrest frame
25
and adapted to be seated on the rear connecting rod
23
through two bracers
261
, as best shown in FIG.
2
.
The conventional swing
1
is disadvantageous in that the backrest frame
25
can only be adjusted between vertical and horizontal positions relative to the seat frame
24
. Moreover, as the conventional swing is bulky, storage or transport of the same is relatively inconvenient.
SUMMARY OF THE INVENTION
Therefore, the object of this invention is to provide a swing having seat units with tiltable backrests so as to overcome the aforesaid disadvantages of the prior art.
According to the present invention, a swing includes a pair of seat units and an upright support frame. Each of the seat units includes a plurality of front brackets, a plurality of rear brackets, front and rear connecting rods, spaced apart inverted U-shaped inner and outer armrest frames having inner and outer front legs connected detachably to the front connecting rod through the front brackets, and inner and outer rear legs connected detachably to the rear connecting rod through the rear brackets, a seat frame disposed between the inner and outer armrest frames, first and second pivots, and a backrest frame extending upwardly from and pivoted to the seat frame through the first pivot. The inner and outer rear legs are pivoted to the backrest frame through the second pivot that is parallel to and that is disposed at an elevation above the first pivot so as to permit position adjustment of the backrest frame relative to the seat frame and so as to permit adjustment of the seat frame together with the backrest frame relative to the inner and outer armrest frames. Each of the seat units further includes: L-shaped inner and outer rod members disposed below and secured to the seat frame, and disposed respectively adjacent to the inner and outer front legs, each of the inner and outer rod members having an engaging rod section; a supporting member including an inner sleeve sleeved slidably on the engaging rod section of the inner rod member, and an inner screw rod mounted rotatably on the inner front leg and threadedly engaging the inner sleeve so as to support one side of the seat frame on the inner front leg; and a locking unit including an outer sleeve sleeved slidably on the engaging rod section of the outer rod member, an abutting plate disposed between the outer front leg and the outer sleeve, and an outer screw rod mounted rotatably on the outer front leg and threadedly engaging the outer sleeve in such a manner that tightening of the outer screw rod results in engagement between the abutting plate and the engaging rod section of the outer rod member, thereby preventing sliding movement of the engaging rod section of the outer rod member relative to the outer sleeve, which, in turn, prevents movement of the seat frame together with the backrest frame relative to the inner and outer armrest frames, and that loosening of the outer screw rod results in disengagement between the abutting plate and the engaging rod section of the outer rod member, thereby permitting sliding movement of the engaging rod section of the outer rod member relative to the outer sleeve, which, in turn, permits movement of the seat frame together with the backrest frame relative to the inner and outer armrest frames. The support frame has opposite top and bottom ends, and left and right suspending members that have upper ends connected swingably to the top end of the support frame, and lower ends connected swingably and respectively to the outer armrest frames of the seat units.
REFERENCES:
patent: 3947069 (1976-03-01), Lusch
patent: 4660884 (1987-04-01), Terui et al.
patent: 5211444 (1993-05-01), Kjellman
patent: 6467842 (2002-10-01), Lu
patent: 6582018 (2003-06-01), Tseng
patent: 6585319 (2003-07-01), Tseng
Brown Peter R.
Taiwan Shin Yeh Enterprise Co., Ltd.
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