Electrical connectors – With coupling separator – Nonconducting pusher
Reexamination Certificate
1999-04-22
2001-04-03
Nguyen, Khiem (Department: 2839)
Electrical connectors
With coupling separator
Nonconducting pusher
Reexamination Certificate
active
06210188
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an electrical card connector, and particularly to an electrical card connector with a card ejection mechanism which requires a relatively small operation force.
2. Description of Prior Art
After an electrical card is inserted into an electrical card connector, ejection of the card therefrom can be difficult since the card is connected with a plurality of terminals and an available area of the card for a user to grip is relatively limited. Therefore, electrical connectors are now often equipped with card ejection mechanisms for mechanically ejecting electrical cards, which simplifies the ejection of the electrical cards. Such card ejection mechanisms are disclosed in U.S. Pat. Nos. 5,655,918 and 5,383,789, and Taiwan Patent Application Nos. 83211908, 84210016, and 8520853. Each card ejection mechanism mentioned above has a disadvantage that it cannot displace a card a sufficient distance beyond the connector. A card that is ejected by each mechanism mentioned above is difficult for a user to grasp thereby moving the card away from the connector.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide an electrical card connector having a card ejection mechanism providing a long displacement distance sufficient to completely eject a card from the connector.
In the preferred embodiment of the present invention, the electrical card connector comprises a main body having a dielectric housing, a plurality of terminals received in the housing, and a mounting casing assembled to the housing, and a card ejection mechanism mounted to the casing of the main body. The card ejection mechanism includes an operating rod, a connecting rod having an end pivotally attached to one end of the operating rod, and a card ejecting lever pivotally attached to another end of the connecting rod, wherein the connecting rod has a first fulcrum, and the card ejecting lever has a second fulcrum which is movable a predetermined distance.
When the operating rod acts on the connecting rod to pivot about the first fulcrum, the arm of the connecting rod is pivoted causing the card ejecting lever to move a distance in a rearward direction, thus the card is ejected a distance. When the second fulcrum of the card ejecting lever abuts against the casing, the card ejecting lever begins to pivot about the second fulcrum. Thus, the connecting rod and the card ejecting lever work together to eject the card a relatively long distance.
The card ejecting lever has two symmetrical, slightly oblique card ejecting arms. The second fulcrum is located where the two arms are linked. The connecting rod is a slightly bent planar board. The first fulcrum is located where the board is bent which is closer to the end pivotally attached to the card ejecting lever than to the end pivotally attached to the operating rod.
REFERENCES:
patent: 5368493 (1994-11-01), O'Brien et al.
patent: 5683258 (1997-11-01), Takano et al.
patent: 6033242 (2000-03-01), Oguchi et al.
patent: 6042401 (2000-03-01), Oguchi et al.
patent: 6059588 (2000-05-01), Tung et al.
Chung Wei Te
Hon Hai - Precision Ind. Co., Ltd.
Nguyen Khiem
Zarroli Michael C.
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