Joints and connections – Articulated members – Member pivoted at rigid corner
Reexamination Certificate
2000-10-04
2002-06-25
Browne, Lynne H. (Department: 3629)
Joints and connections
Articulated members
Member pivoted at rigid corner
C403S329000, C403S112000, C403S119000
Reexamination Certificate
active
06409410
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a coupler, and more particularly to a coupler for a sport practice net rack.
2. Description of the Related Art
A conventional coupler
70
in accordance with the prior art shown in
FIGS. 12 and 13
can be used for co-operating with a sport practice net rack
60
. In practice, a plurality of couplers
70
are used to connect the support rods
62
of the sport practice net rack
60
, thereby fully expanding the sport practice net rack
60
so that a user can use the sport practice net rack
60
for practice use. However, each of the couplers
70
has a fixed structure so that the user has to detach each of the couplers
70
from the support rods
62
the sport practice net rack
60
respectively so as to fold the sport practice net rack
60
, thereby causing inconvenience to the user. In addition, the couplers
70
and the support rods
62
of the sport practice net rack
60
occupy much space when being folded, thereby greatly wasting the storing space. Further, the sport practice net rack
60
cannot be easily and quickly assembled and dismantled, thereby causing inconvenience to the user. Further, the couplers
70
and the support rods
62
of the sport practice net rack
60
are not portable when being folded, thereby decreasing the versatility of the sport practice net rack
60
.
SUMMARY OF THE INVENTION
The present invention has arisen to mitigate and/or obviate the disadvantage of the conventional coupler for a sport practice net rack.
In accordance with one aspect of the present invention, there is provided a coupler for a sport practice net rack comprising: a first angular tube having a first flat section and a first angular section; and a second angular tube pivotally mounted on the first angular tube and having a second flat section and a second angular section, the second angular section of the second angular tube detachably received in the first angular section of the first angular tube.
The first angular section of the first angular tube defines a locking slot therein. and the second angular section of the second angular tube includes an elongated flexible piece having a press button protruding outward therefrom and detachably secured in the locking slot of the second angular section of the first angular tube. The first angular section of the second angular tube defines two elongated slits spaced from each other, thereby defining the elongated flexible piece.
The second flat section of the second angular tube is provided with an annular shoulder, and the first angular section of the first angular tube has an abutting edge rested on the annular shoulder of the second flat section of the second angular tube when the press button of the flexible piece of the second angular section of the second angular tube is secured in the locking slot of the first angular section of the first angular tube.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
REFERENCES:
patent: 5431411 (1995-07-01), Padilla
patent: 5539957 (1996-07-01), Schmidt
patent: 5566952 (1996-10-01), Mullin et al.
patent: 5681045 (1997-10-01), Liao
Baxley Charles E.
Browne Lynne H.
Cottingham John R.
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