Electricity: transmission to vehicles – Flexible extensions – Reels
Reexamination Certificate
2000-02-24
2001-05-15
Morano, S. Joseph (Department: 3617)
Electricity: transmission to vehicles
Flexible extensions
Reels
C191S012400, C191S01220A, C191S01200C
Reexamination Certificate
active
06230860
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a mobile phone battery charger, and more particularly to a mobile phone battery charger with a power cord winding mechanism. When the battery charger is not used, the winding mechanism is able to wind up the power cord of the battery charger to prevent the power cord from being exposed outside.
2. Description of the Prior Art
Mobile phones have been more and more widely used nowadays. Typically, a mobile phone battery charger for the mobile phone is connected with a long power cord with an electric plug. In the case that the battery charger of the mobile phone and other electric appliances, such as an electric fan, must use an electric socket or an extension wire, numerous power cords will randomly scatter over the floor. Under such circumstance, dust tends to accumulate on the power cords and a user will have disorderly visual feeling. Furthermore, when the user carries the mobile phone battery charger to use outdoors, the exposed power cord will make it inconvenient to carry and store the battery charger.
Some of the existent domestic electric appliances, such as dust cleaner, are equipped with an automatic cable winding mechanism. However, such cable winding mechanism cannot be directly adapted to the battery charger of the mobile phone. Therefore, it is necessary to provide a power cord winding mechanism for the mobile phone battery charger, which has specific and fine structure and is able to wind up the power cord. When the battery charger is not used, the power cord can be wound in the battery charger without being exposed outside.
SUMMARY OF THE INVENTION
Consequently, the primary object of the present invention is to provide a power cord winding mechanism for a mobile phone battery charger. By means of the power cord winding mechanism, the power cord extended from the mobile phone battery charger can be wound in the battery charger.
To achieve the above objects, in accordance with a preferred embodiment of the present invention, there is provided a battery charger formed with a power cord receiving chamber therein. A winding reel is disposed in the receiving chamber for winding the power cord. The upper end surface of the winding reel is disposed with two contacts connected with the power cord. Two resilient plates are fixedly disposed on upper side of the receiving chamber to respectively contact with the contacts. A coil spring is arranged between the winding reel and the projecting shaft to provide a rotating force for the winding reel to wind up the power cord. One of the contacts is disposed at the center of the upper end surface of the winding reel, while the other contact is formed as a circumferential contact around the central contact. Accordingly, when the winding reel is rotated, the two resilient plates are kept one-to-one in contact with the two contacts.
In order that the present invention may more readily be understood, the following description is given, merely be way of example, reference being made to the accompanying drawings, wherein:
REFERENCES:
patent: 4232837 (1980-11-01), Cutler et al.
patent: 4893037 (1990-01-01), Schwartz
patent: 4904205 (1990-02-01), Rice
patent: 5590749 (1997-01-01), Wagner et al.
patent: 5689171 (1997-11-01), Ludewig
patent: 5754625 (1998-05-01), Shimura
patent: 6059081 (2000-05-01), Patterson et al.
Dougherty & Troxell
Jules Frantz F.
Morano S. Joseph
Tempa Communication Inc.
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