Electrical connectors – With coupling separator – Nonconducting pusher
Patent
1998-03-12
1999-10-19
Abrams, Neil
Electrical connectors
With coupling separator
Nonconducting pusher
H01R 1362
Patent
active
059678119
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
This invention relates to a memory card connector for receiving a memory card and electrical connection with circuit boards.
BACKGROUND OF THE INVENTION
Printed circuit cards incorporating integrated circuits are widely used in personal computers and similar devices and are known as memory cards. Printed circuit cards can be used in special card terminals equipped with memory card connectors. Such memory card connectors normally include an actuating member reciprocably sliding in the direction of card insertion and ejection and a card-ejection member having one end that ejects the card inserted in the memory card connector when the card-ejection member is rotated by the action of the actuating member applied to the other end of the card-ejection member.
Such memory card connectors equipped with an activating member and card-ejection member are described for example in Japanese Patent Publication No. 94-243299 and Japanese Utility Model Publication No. 94-37947.
In order to enhance the operational capability of the card-ejection members described in these publications to eject a printed circuit card inserted in the memory card connector, they have two protrusions formed on the front edge of the card-ejection members facing the card insertion direction. These two protrusions play the role of sequential fulcrums in response to the rotational or pivotal movement of the front edge of the card-ejection member produced for the purpose of card ejection.
As mentioned above, these fulcrums in the form of the protrusions engage the card. In some cases, this engagement takes place in an inconvenient location, and as a result the fulcrums can shift from their required positions. When such a shift occurs, it becomes impossible to produce appropriate forces required for the ejection of the printed circuit card from the memory card connector, thereby resulting in an insufficient ejection of the card. There also exists a danger that the card-ejection member can be bent. If an attempt is made to continue to move card-ejection member in such a condition, it may rub against a plate located adjacent the card-ejection member resulting in damage thereto. In order to prevent the separation of the card-ejection member from the frame, a portion of the frame is bent to a C-shaped configuration which secures the entire card-ejection member. Therefore, the frame shape is very complicated for the fabrication thereof, while it is still impossible to prevent the lifting of the card-ejection member from the frame.
SUMMARY OF THE INVENTION
Considering the above-mentioned situation, the purpose of this invention is to provide a memory card connector which provides sufficient and accurate ejection of the card from the memory card connector.
In order to achieve the purposes stated above, a memory card connector comprises a frame intended for the insertion thereinto of a flat memory card; an insulating housing fixed at an end of the frame opposite to an end for the card insertion which is intended for the reception of a card inserted in the frame; an actuating member movably mounted to the left or right side of the frame in such a manner that it can move in the direction of insertion; and a card-ejection member located perpendicularly to the direction of insertion with one end being connected to the front end (when looking in the direction of insertion) of the actuating member and the other end being pressed against the front edge (looking in the direction of insertion) of the memory card retained in the frame and insulating housing making it possible to push out the memory card inserted in the frame when the card-ejection member is rotated as a result of moving the actuating member in the direction of insertion, wherein the card-ejection member has a primary floating axis of rotation for the initial period of rotation which is located inside an elongated opening located in the area of the other end of the card-ejection member, and a secondary axis of rotation located near the first end of the card-ejection member
REFERENCES:
patent: 5179871 (1993-01-01), Orimoto et al.
patent: 5383789 (1995-01-01), Watanabe
patent: 5466166 (1995-11-01), Law et al.
patent: 5533906 (1996-07-01), Abe
Watanabe Satoru
Yamamoto Yoshihisa
Abrams Neil
Nasri Javaid
The Whitaker Corporation
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