Chairs and seats – Collapsible chair; i.e. – relatively folding bottom – back,... – Collapsed to a compact bundle having all rigid elongated...
Reexamination Certificate
2001-05-11
2002-09-24
White, Rodney B. (Department: 3636)
Chairs and seats
Collapsible chair; i.e., relatively folding bottom, back,...
Collapsed to a compact bundle having all rigid elongated...
C297S035000, C297S046000, C297S045000, C297S047000
Reexamination Certificate
active
06454348
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a foldable chair assembly, more particularly to a foldable chair assembly that is comfortable to use and that saves a lot of space when folded.
2. Description of the Related Art
FIG. 1
illustrates a conventional foldable chair assembly
100
having a pair of opposing rectangular side frames
11
, a pair of inverted U-bars
13
, a fabric seat
15
, and a fabric backrest
16
. Each of the side frames
11
has a lower end portion formed with a pair of downwardly extending legs
111
, and an upper end portion provided with an armrest
113
. The inverted U-bars
13
have intersecting intermediate portions that are pivoted to each other, lower end portions that are connected pivotally and respectively to the lower end portions of the side frames
11
, and upper end portions that are connected pivotally and respectively to the upper end portions of the side frames
11
via link bars
17
. The seat
15
has opposite lateral sides secured to the upper end portions of the inverted U-bars
13
, respectively. The backrest
16
is disposed on one end of the side frames
11
. The link bars
17
are designed to reinforce the structure of the foldable chair
100
and to facilitate folding of the latter. However, as shown in
FIG. 2
, the chair assembly
100
still occupies a lot of space after folding because the depth of the chair
100
cannot be reduced.
Another conventional foldable chair assembly
200
is illustrated in FIG.
3
. The chair assembly
200
includes: a pair of upright rear leg rods
23
; foldable front, rear, left and right cross-frames
22
; a fabric seat
24
; and a fabric backrest
26
. Each of the rear leg rods
23
has a lower end portion provided with a foot pad
21
. A sleeve member
25
is sleeved slidably and respectively between the upper and lower end portions of each of the rear leg rods
23
. Each of the cross-frames
22
is formed from a pair of cross-bars having intermediate portions that are pivoted to each other, lower end portions that are connected pivotally and respectively to the foot pads
21
, and upper end portions. Two connectors
27
are disposed opposite to the sleeve members
25
. One of the connectors
27
is connected pivotally to the front and left cross-frames
22
. The other one of the connectors
27
is connected pivotally to the front and right cross-frames
22
. The upper end portions of the rear, left and right cross-frames
22
are further connected pivotally and respectively to the sleeve members
25
. The seat
24
has four corners connected respectively to the sleeve members
25
and the connectors
27
. The backrest
26
has opposite lateral sides secured to the upper end portions of the rear leg rods
23
. Although the foldable chair assembly
200
can save a lot of space when folded, as shown in
FIG. 4
, the chair assembly
200
is uncomfortable to use because it has no armrests.
SUMMARY OF THE INVENTION
Therefore, the main object of the present invention is to provide a foldable chair assembly that is comfortable to use and that saves a lot of space when folded.
Accordingly, a foldable chair assembly of this invention comprises a pair of upright front leg rods, a pair of upright rear leg rods, a pair of front sleeve members, a pair of rear sleeve members, a fabric seat, a fabric backrest, a foldable front cross-frame, a foldable rear cross-frame, a foldable left cross-frame, a foldable right cross-frame, and a pair of armrest rods. Each of the front leg rods has an upper end portion and a lower end portion. Each of the rear leg rods has an upper end portion and a lower end portion. Each of the front sleeve members is sleeved slidably and respectively on the front leg rods between the upper and lower end portions of the front leg rods. Each of the rear sleeve members is sleeved slidably and respectively on the rear leg rods between the upper and lower end portions of the rear leg rods. The fabric seat has four corner portions connected respectively to the front and rear sleeve members. The fabric backrest has opposite lateral sides connected respectively to the upper end portions of the rear leg rods. The foldable front cross-frame has a lower end section connected pivotally to the lower end portions of the front leg rods, and an upper end section connected pivotally to the front sleeve members. The foldable rear cross-frame has a lower end section connected pivotally to the lower end portions of the rear leg rods, and an upper end section connected pivotally to the rear sleeve members. The foldable left cross-frame has a lower end section connected pivotally to the lower end portions of a first adjacent pair of the front and rear leg rods, and an upper end section connected pivotally to a first adjacent pair of the front and rear sleeve members. The foldable right cross-frame has a lower end section connected pivotally to the lower end portions of a second adjacent pair of the front and rear leg rods, and an upper end section connected pivotally to a second adjacent pair of the front and rear sleeve members. Each of the armrest rods has a front end portion connected pivotally to the upper end portion of a respective one of the front leg rods, and a rear end portion connected movably to a respective one of the rear leg rods.
REFERENCES:
patent: 5893605 (1999-04-01), Chang
patent: 6082813 (2000-07-01), Chen
patent: 6149238 (2000-11-01), Tsai
patent: 6231119 (2001-05-01), Zheng
patent: 6247748 (2001-06-01), Zheng
patent: 6247749 (2001-06-01), Yu
patent: 6247750 (2001-06-01), Tsai
patent: 6322138 (2001-11-01), Tang
patent: 6382715 (2002-05-01), Tang
patent: 6382729 (2002-05-01), Wu
Keefer Timothy J.
White Rodney B.
Wildman Harrold Allen & Dixon
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