Chairs and seats – Collapsible chair; i.e. – relatively folding bottom – back,... – Collapsed to a compact bundle having all rigid elongated...
Reexamination Certificate
2000-09-15
2001-05-15
Brown, Peter R. (Department: 3636)
Chairs and seats
Collapsible chair; i.e., relatively folding bottom, back,...
Collapsed to a compact bundle having all rigid elongated...
C297S045000, C297S232000
Reexamination Certificate
active
06231119
ABSTRACT:
BACKGROUND OF THE PRESENT INVENTION
1. Field of Invention
The present invention relates to foldable chair, and more particularly to a foldable dual-chair which is facilitated to be folded into a compact unit for storage and carriage.
2. Description of Related Arts
Since a conventional foldable chair can be quickly and easily unfolded for use and folded into a compact unit for carriage, a user can carry the foldable chair to everywhere such as campground or beach. However, when two or more person may join together to have an outdoor activity, they must need to bring more foldable chair in order to occupy their own chair. Even though each foldable chair is folded into a compact size, it is difficult for the user to carry two or more foldable chairs at the same time. Thus, the foldable chairs are bulky for storage and transportation especially when the user put them into a limited space of a vehicle's trunk.
Some improved foldable chairs increase their sizes in order to support two people sitting thereon. However, such foldable chairs have their drawbacks. First, the foldable chair may fail to well support the users because of the increase of user's weight. In order to well support the user, the foldable chair must provide a rigid cross-support structure of the construction tubes that may increase the weight of the foldable chair. Second, more metal tubes are needed to be constructed the foldable chair in order to increase its seat frame section for supporting two persons. However, the foldable chair cannot be folded into a compact unit which is bulky and difficult to carriage.
SUMMARY OF THE PRESENT INVENTION
A main object of the present invention is to provide a foldable dual-chair, which provides a strong frame structure that can well support two users sitting on the foldable dual-chair.
Another object of the present invention is to provide a foldable dual-chair which can be quickly and easily folded into a compact unit for carriage and storage and unfolded for use.
Another object of the present invention is to provide a foldable dual-chair, which has a simple construction that every individual is able to fold and unfold the foldable dual-chair in one single motion.
Accordingly, in order to accomplish the above objects, the present invention provides a foldable dual-chair, comprising a pair of seat frames and a pair of back frame constructed to support a pair of fabric seats thereon respectively.
Each seat frame comprises an inter-side frame leg, an outer-side frame leg, and a construction frame leg foldably supported between the inter-side frame leg and the outer-side frame leg wherein a connecting frame is foldably supported between the two inter-side frame legs. Each of inter-side and outer-side frame legs comprises a front side crossed leg and a rear side crossed leg pivotally connected together where they cross, a front upper frame joint pivotally connected to a top end of the rear side crossed leg, and a front base frame joint pivotally connected to a lower end of the front side crossed leg.
The connecting frame comprises a pair of connecting leg posts slidably passing through the two front frame joints of the two inter-side frame legs respectively wherein each connecting leg post comprises an outer tube frame having a lower end connected to the front base frame joint and an inner tube frame coaxially and upwardly extended from the outer tube frame in a slidably movable manner and penetrating through the respective front upper frame joint.
REFERENCES:
patent: 3492046 (1970-01-01), Wittner et al.
patent: 3640568 (1972-02-01), Suzuki et al.
patent: 5570928 (1996-11-01), Staunton et al.
patent: 6082813 (2000-07-01), Chen
Brown Peter R.
Chan Raymond Y.
David & Raymond Patent Group
Tofasco of America Inc.
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