Telephone line box that prevents tangles of the extension...

Details Telephone line box that prevents tangles of the extension... Telephone line box that prevents tangles of the extension...

1999-02-11

2001-05-01

Chiang, Jack (Department: 2642)

Telephonic communications

Terminal

Housing or housing component

Reexamination Certificate

active

06226381

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a telephone line box, and more particularly, to a telephone line box that prevents tangles of the extension and retraction of a cable.
2. Description of the Prior Art
A telephone line box is used for winding a telephone line around a spool to make it more convenient to carry. The telephone line box comprises two discs for winding the telephone line and a housing with two openings. The plugs of the telephone line are placed at the two openings. The two openings are commonly installed with one on the top side and the other on the bottom side. Alternatively, they may be both installed on the bottom side. In the former design, the housing is large and cumbersome. In the latter design, the housing is smaller but the telephone line very easily gets tangled.
Please refer to FIG.
1
and FIG.
2
.
FIG. 1
is a perspective view of a prior art telephone line box
10
.
FIG. 2
is a sectional view along line
2
—
2
of the telephone line box
10
shown in FIG.
1
. The telephone line box
10
comprises a telephone line
12
with two plugs
14
, a housing
18
comprising two openings
20
,
21
on its bottom for placing the two plugs
14
, and a cable chassis
22
rotatably installed in the housing
18
. The cable chassis
22
comprises two corresponding discs
23
for winding the telephone line
12
and an reel
24
at the center of the two discs
23
. The telephone line
12
is divided into two parts with its middle portion fixed to the reel
24
.
When the cable chassis
22
is rotated along a specific direction to collect the two parts of the telephone line
12
, the two parts of the telephone line
12
become rolled onto the reel
24
along two neighboring tangential positions
26
,
28
. When one of the plugs
14
is pulled out of an opening
20
,
21
, the cable chassis
22
rotates in an opposite direction such that the two parts of the telephone line
12
are pulled out separately along the two neighboring tangential positions
26
,
28
. As shown in
FIG. 2
, the distance between the tangential position
28
and the opening
20
is longer than the distance between the tangential position
26
and the opening
21
such that when one part of the telephone line
12
is pulled outward, the telephone line
12
may easily become tangled at this portion.
SUMMARY OF THE INVENTION
It is therefore a primary objective of the present invention to provide a telephone line box for solving the above mentioned problems.
In a preferred embodiment, the present invention provides a telephone line box comprising:
a telephone line comprising two telephone plugs and
a belt-type cable connected between the two plugs;
a housing comprising a cylindrical slot in it, two openings located on one end of the housing for placing the two plugs, and one cable path between each of the openings and the cylindrical slot for allowing the cable to pass through; and
a cable chassis rotatably positioned in the cylindrical slot of the housing comprising a disc and a reel installed at the center of the disc, the cable being divided into two parts separated by a middle portion that is fixed to the reel;
wherein when the cable chassis is rotated along a specific direction to collect the two parts of the cable through the two cable paths of the housing, the two parts of the cable will be wrapped around the reel through two neighboring entry positions in the cylindrical slot, and the two cable paths are arranged along two tangential directions extended from the two entry positions of the cylindrical slot wherein when one part of the cable is pulled out of the cylindrical slot along one cable path, the other part of the cable will be smoothly carried out through the other cable path in the same time without becoming tangled.
It is an advantage of the present invention that the cable can be pulled out without becoming tangled while the volume of the box is effectively reduced. Also, the box can accommodate a longer cable and only requires one disc thus reducing costs.
This and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after having read the following detailed description of the preferred embodiment which is illustrated in the various figures and drawings.


REFERENCES:
patent: 6079657 (2000-06-01), Hwang

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