Card ejection device of electronic card connector

Details Card ejection device of electronic card connector Card ejection device of electronic card connector

1999-07-19

2001-05-15

Frech, Karl D (Department: 2876)

Registers

Coded record sensors

Feed mechanisms

C235S479000

Reexamination Certificate

active

06230978

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention generally relates to an electronic card connector, and in particular to a modularized card ejection device of an electronic card connector.
2. The Prior Art
Electronic cards, such as PCMCIA cards and memory cards, have been widely used for expanding resources of a computer. An electronic card connector is incorporated in a computer or a similar device to connect an electronic card to the computer. The electronic card connector is often equipped with a card ejection device for selectively ejecting an electronic card from the connector. Examples of card ejection devices are disclosed in Taiwanese Patent Application Nos. 83111731, 83205851, 85103753 and 86210606.
FIG. 1
of the attached drawings shows a conventional electronic card connector. The electronic card connector includes a header
7
retaining contacts (not shown) therein, a metal plate
6
shielding the header
7
, and a frame
8
fixed to the header
7
and comprising two opposite guide arms
5
. One of the guide arms
5
defines a recess
51
for accommodating a card ejection device
4
. Thus, the card ejection device
4
is integrated with the frame
8
of the connector thereby complicating the manufacturing process of the electronic card connector and prohibiting modularization of the card ejection device
4
. Furthermore, the card ejection device
4
comprises a number of components requiring a large amount of space for accommodation. Therefore, the size of the frame is significantly increased.
In addition, the conventional electronic card connector is only shielded by the metal plate
6
disposed above the header
7
, which may be insufficient for an electronic card connector located proximate different electronic devices since electromagnetic interference may come from all directions.
Thus, it is desirable to provide a modularized card ejection device of an electronic card connector for eliminating the problems discussed above.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide a modularized card ejection device of an electronic card connector for facilitating assembly and conserving space.
Another object of the present invention is to provide an electronic card connector having excellent electrical shielding properties.
To achieve the above objects, a card ejection device of an electronic card connector in accordance with the present invention comprises a card driving portion and a manual operation portion. A shielding member includes a plate for substantially shielding the connector and two side walls extending therefrom. The card driving portion includes a rocking member rotated by a follower bar to eject an electronic card received in the connector. The manual operation portion includes a casing mounted to the side wall of the shielding member. A cam plate is fixed in one side wall of the casing and defines a closed-loop groove. A push bar is movably received in the casing and overlaps the cam plate. A slider is arranged between the push bar and the cam plate. The slider defines a hole for receiving a pivot of the push bar and forms a pin movably received in the groove of the cam plate whereby when the push bar is manually operated, the groove guides the movement of the slider and the push bar. A biasing spring is arranged between the cam plate and the push bar to bias the push bar to an un-actuated position. The slider has a transverse projection contacting the follower bar for driving the follower bar to rotate the rocking member when the push bar is actuated.


REFERENCES:
patent: 5179505 (1993-01-01), Matsuo
patent: 5879175 (1999-03-01), Muramatsu et al.
patent: 5997324 (1999-12-01), Ho et al.
patent: 6086393 (2000-07-01), Tung et al.
patent: 6095834 (2000-08-01), Lai et al.
patent: 6123560 (2000-09-01), Hara et al.

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