JP3505653B2 - Card connector - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card connector used for card connection (hereinafter may be simply referred to as "connector"), and more particularly to an eject mechanism for detaching a connected card. Regarding the provided connector.

[0002]

2. Description of the Related Art A card used in this type of connector has a card pad for connection on its surface. On the other hand, the connector is provided with a contact for contacting the card pad. The frictional force between the contact and the card pad is not sufficient to keep the card connected to the connector.

Further, in the case of a connector equipped with an eject mechanism, there is a risk that the card will pop out of the connector when the eject mechanism operates. Therefore, Japanese Utility Model Registration No. 2568489 proposes to provide an auxiliary spring for preventing the card from popping out when the card is ejected by the eject mechanism. The auxiliary spring is for preventing accidental ejection of the card by frictional force. In this publication, the eject mechanism does not have a means for mechanically fixing the card, and has only the function of assisting the ejection of the card.

[0004]

However, the frictional force between the contact and the card, the frictional force between the auxiliary spring and the card, etc. always act with the same force. It interferes with normal discharge. For this reason, a strong spring cannot be provided as a contact or an auxiliary spring, so that the effect of preventing the card from popping out when the card is ejected by the eject mechanism is insufficient.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a card connector which surely prevents the card from popping out without hindering the normal ejection of the card by the eject mechanism.

[0006]

According to the present invention SUMMARY OF], in the card connector having an eject mechanism for disengaging the connected card, the eject mechanism, Ca
In order to eject the card, the
It includes a ejector levers, an <br/> elastic member coupled to the eject lever, the elastic member, the engaging portion and the engaging portion
And a protrusion protruding toward the card side,
It is displaced in a direction intersecting with the inserting / removing direction according to the movement of the lever , and when the card is inserted, the engaging portion and the
The protrusion is fitted and the engaging portion engages with the concave portion to prevent the card from being removed, and the elastic member bends in response to the operation of the eject lever , so that the engagement between the concave portion and the engaging portion. The card connector is obtained in which the protrusion is brought into contact with the concave portion of the card when the contact is released and the card is prevented from jumping out.

[0007]

It is also possible to have a position fixing claw disposed adjacent to the elastic member, and the elastic member can be displaced by engaging with the claw.

It is also possible to have a casing that defines a card insertion area, and the pawl may be fixed to the casing.

The eject lever is restricted in its movable range by a cam groove that extends in a substantially heart shape and a cam follower that moves along the cam groove, and is biased by a spring in a direction to remove the card. Good.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, referring to FIG. 1, an outline of a card connector according to an embodiment of the present invention will be described.

The connector shown in the drawing includes a casing 3 having an insulating base 1 and a cover 2 mounted on the base so as to cover the upper surface thereof. The card 5 is inserted into or removed from the insertion area defined by the casing 3 from one end or the front portion in the front-rear direction, that is, the first direction 4. Therefore the first
The direction 4 of is also referred to as an insertion / removal direction.

A plurality of electrically conductive contacts 6 are held at the opposite end or rear portion of the base 1 in the first direction 4. These contacts 6 are arranged in the left-right direction orthogonal to the first direction 4, that is, in the second direction 7. On the other hand, the card 5 has a card pad (not shown) that comes into contact with the contact 6 when inserted into the casing 3.
The contact 6 is in pressure contact with the card pad of the card 5 in the up-down direction orthogonal to the first direction 4 and the second direction 7, that is, the third direction 8.

An eject mechanism 9 is incorporated at one end of the base 1 in the second direction 7, that is, on the right side. The eject mechanism 9 includes an eject lever 11 slidable in the first direction 4. The eject lever 11 is
A spring, that is, a compression coil spring 13 is provided at a rear portion of the base 1 and has an acting portion 12 facing the insertion end of the card 5.
Is urged forward by. Therefore, the eject lever 11 is at the front position when the card 5 is not inserted.

When the card 5 is inserted, the action end 12 is pushed by the insertion end, and as a result, the eject lever 11
Moves backwards. When the card 5 is completely inserted into the predetermined position, the card pad contacts the contact 6 and the card 5 is connected to the connector. When the eject lever 11 moves forward, the action portion 12 pushes the card 5 forward, and the card pad contacts the contact 6.
And the card 5 is detached from the connector.

The movable range of the eject lever 11 in the first direction 4 is the cam groove 14 formed in the eject lever 11 and the cam follower 1 moving along the cam groove.
It is regulated by 5 and. The cam groove 14 extends so as to form a substantially heart shape. On the other hand, cam follower 15
Is a rod-shaped member extending in the first direction 4, the rear end is fixed to the base 1, and the front end is inserted into the cam groove 14.

Further, the eject lever 11 is provided with an elastic member 16 facing the side edge of the inserted card 5. Further, a claw 17 located adjacent to the elastic member 16 is provided on the lower surface of the cover 2. The claw 17 is formed by cutting and raising a part of the cover 2.

The elastic member 16 is formed by processing a leaf spring material into the shape shown in FIG. 2, and has an engaging portion 18 which is a card fixing portion at one end and a bending spring portion near the engaging portion. It has a smoothly curved convex portion 19 and a step portion 21 that is formed subsequent to this convex portion and that engages with the claw 17.

The description will be continued with reference to FIGS. 3 to 8 in addition to FIG.

Only the other end, that is, the front end of the elastic member 16 is fixed to the eject lever 11. Therefore, the elastic member 1
The other part of 6 is in a free state, and the engaging part 18 and the convex part 19
Is elastically movable in the second direction. On the other hand, the side edge of the card 5 is formed with a concave portion 22 for receiving the engaging portion 18 and the convex portion 19 when the card 5 is completely inserted into a predetermined position.

In the state shown in FIGS. 3 to 5 in which the card 5 is completely inserted to the predetermined position, the eject lever 11 is stopped at the rear position by the predetermined engagement of the cam groove 14 and the cam follower 15. In this state, the elastic member 16
The engaging portion 18 and the convex portion 19 of are fitted into the concave portion 22 of the card 5. Therefore, the engagement portion 18 engages with the inner surface of the concave portion 22 in the first direction 4, whereby the card 5 is reliably prevented from being detached.

When the eject lever 11 is pushed rearward in the first direction 4, the cam follower 15 moves along the cam groove 14, and the predetermined engagement between the cam groove 14 and the cam follower 15 is released. Therefore, when the pressing force of the eject lever 11 is released thereafter, the eject lever 11 is pushed forward by the compression coil spring 13 in the first direction 4. At this time, the elastic member 1 together with the eject lever 11
6 and the card 5 also move forward. However, the elastic member 1
Since the engaging portion 18 of No. 6 is engaged with the concave portion 22 of the card 5, only the card 5 does not pop out.

When the eject lever 11 moves to the front position and reaches the state of FIGS. 6 to 8, the stepped portion 2 of the elastic member 16 is reached.
1 rides on the pawl 17 and engages in the second direction 7, and as the elastic member 11 bends, the engaging portion 18 and the convex portion 19 are slightly moved laterally in the second direction 7. As a result, the elastic member 16
The engaging portion 18 of the card 5 goes out of the recess 22 of the card 5. However, since the convex portion 19 is inserted into the concave portion 22, the accidental protrusion of the card 5 is prevented. Since the convex portion 19 is smoothly curved, the card 5 can be easily pulled out by applying a pulling force.

In the above description, the engaging portion 18 of the elastic member 16 is used.
Although the convex portion 19 moves in the left-right direction, that is, the second direction 7, the description has been given as an example.
You may move in.

Further, although the eject mechanism 9 has a specific structure as an example, it goes without saying that the eject mechanism 9 is not limited to this.

[0026]

As described above, according to the present invention,
It is possible to provide a connector that reliably prevents card ejection without hindering normal ejection of the card by the eject mechanism.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a card connector according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of an elastic member used in the connector of FIG.

FIG. 3 is a plan view showing the connector of FIG. 1 when a card is inserted, with a cover omitted.

FIG. 4 is a side view showing the connector of FIG. 1 in a state where a card is inserted, with a cover omitted.

5 is an enlarged view of a main part of FIG.

6 is a plan view similar to FIG. 3 showing the connector of FIG. 1 in a state where a card is detached.

7 is a side view similar to FIG. 4, showing the connector of FIG. 1 in a state where a card is detached.

FIG. 8 is an enlarged view of a main part of FIG.

[Explanation of symbols]

1 Insulating base 2 cover 3 casing 4 First direction (insertion / removal direction) 5 cards 6 Conductive contact 7 Second direction 8 third direction 9 Eject mechanism 11 eject lever 12 Working part 13 Compression coil spring 14 Cam groove 15 Cam Follower 16 Elastic member 17 nails 18 Engagement part 19 convex 21 steps 22 recess

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Keiichiro Suzuki 1-21-2, Dogenzaka, Shibuya-ku, Tokyo Nihon Aviation Electronics Industry, Ltd. (56) Reference JP 2000-268136 (JP, A) JP 2000-277207 (JP, A) Actual flat 2-126247 (JP, U) Actual flat 6-33244 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) H01R 13/629 H01R 13/639

Claims (4)

(57) [Claims] 1. A card connector having an eject mechanism for detaching a connected card, wherein the eject mechanism inserts a card for ejecting the card.
The eject lever that can be moved in and out and the eject lever
And an elastic member coupled to Trevor, the elastic member includes a convex portion protruding to the card side of the engagement portion and the engagement portion
And a card that is displaced in a direction intersecting with the insertion / removal direction according to the movement of the eject lever , and when a card is inserted, the card is inserted into a recess formed in the card.
The engagement portion and the convex portion are fitted to each other to prevent the card from being detached by engaging the engagement portion with the concave portion,
The elastic member bends according to the operation of the eject lever ,
A connector for a card, wherein the concave portion and the engaging portion are disengaged from each other and the convex portion comes into contact with the concave portion of the card, thereby preventing the card from popping out. 2. A has a claw adjacent arranged positionally fixed to the elastic member, the card connector of claim 1 wherein the elastic member is displaced by engagement with the pawl. 3. The card connector according to claim 2 , further comprising a casing defining a card insertion area, wherein the claw is fixed to the casing. 4. The eject lever is restricted in its movable range by a cam groove that extends in a substantially heart shape and a cam follower that moves along the cam groove, and is biased by a spring in a direction in which a card is removed. The card connector according to claim 2 or 3 .