Games using tangible projectile – Playing field or court game; game element or accessory... – Means for dividing field or court into compartments; element...
Reexamination Certificate
2003-01-20
2004-04-06
Chiu, Raleigh W. (Department: 3711)
Games using tangible projectile
Playing field or court game; game element or accessory...
Means for dividing field or court into compartments; element...
C473S492000
Reexamination Certificate
active
06716123
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a net support rack assembly, and more particularly to a net support rack assembly which is assembled and folded easily and conveniently.
2. Description of the Related Art
A conventional net support rack is disclosed in U.S. Pat. No. 5,816,956, entitled “NET SUPPORT STRUCTURE”. However, the net is mounted on the frame by its four ends, so that the mounting structure between the net and the frame is weak. In addition, the main body has a greater length, so that it is easily bent and deformed during a long-term utilization.
SUMMARY OF THE INVENTION
The present invention has arisen to mitigate and/or obviate the disadvantage of the conventional net support rack.
The primary objective of the present invention is to provide a net support rack assembly, wherein the snapping end of the elastic lock is snapped into and locked in the hooking groove of the net, so that the net is fully stretched and expanded on the two longitudinal tubes by the elastic force of the elastic lock.
Another objective of the present invention is to provide a net support rack assembly, wherein each of the two longitudinal tubes, each of the two connectors, each of the two bottom tubes, each of the two first connecting tubes and the second connecting tube are closely combined with each other by the elastic force of the elastic lock.
A further objective of the present invention is to provide a net support rack assembly, wherein each of the transverse tubes is closely mounted on a respective one of the two connectors by the elastic force of each of the two elastic cords.
A further objective of the present invention is to provide a net support rack assembly, wherein each of the two clamping members is movably mounted on the bottom tube to provide a positioning effect, thereby preventing the bottom tube or the main body of the net support rack assembly from being bent or deformed during a long-term utilization.
In accordance with the present invention, there is provided a net support rack assembly comprising two connectors, two longitudinal tubes, four transverse tubes, two elastic cords, two bottom tubes, two first connecting tubes, a second connecting tube, a net, and an elastic lock, wherein:
each of the two connectors has a hollow inside and has four ends each formed with a through hole;
each of the two longitudinal tubes has a lower end inserted into the through hole of a first end of a respective one of the two connectors;
each of the four transverse tubes has a first end inserted into the through hole of either one of second and third ends of a respective one of the two connectors;
each of the two elastic cords is extended through the through hole of each of the second and third ends of a respective one of the two connectors, and has two ends each secured on a second end of a respective one of the four transverse tubes, so that the first end of each of the four transverse tubes is closely mounted in the through hole of either one of the second and third ends of a respective one of the two connectors by the elastic force of each of the two elastic cords;
each of the two bottom tubes has a first end inserted into the through hole of a fourth end of a respective one of the two connectors;
each of the two first connecting tubes has a first end connected to a second end a respective one of the two bottom tubes;
the second connecting tube has two ends each connected to a second end a respective one of the two first connecting tubes;
the net has two sides each formed with an enclosure to enclose a respective one of the two longitudinal tubes; and
the elastic lock is extended through each of the two longitudinal tubes, each of the two connectors, each of the two bottom tubes, each of the two first connecting tubes and the second connecting tube, so that each of the two longitudinal tubes, each of the two connectors, each of the two bottom tubes, each of the two first connecting tubes and the second connecting tube are combined with each other by the elastic force of the elastic lock.
REFERENCES:
patent: 3195898 (1965-07-01), Respini
patent: 3649011 (1972-03-01), Barnes
patent: 4274632 (1981-06-01), Jacobs
patent: 5269533 (1993-12-01), Kellams
patent: 5333880 (1994-08-01), Allbright
patent: 5816956 (1998-10-01), Ellis et al.
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