JP2003006576A - Socket for memory card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a socket for a memory card from which the memory card is easily detached. SOLUTION: The socket is provided with on its body a slider 5 capable of being abutted to the memory card and slid and a card lock 9. On the body, a slope 67 inclined to a memory card side in the direction of inserting the memory card is provided. The card lock 9 is provided with an engaging part 91 to be engaged with a notch for the lock provided on the memory card and an elastic contact part 92 to be in elastic contact with the slope 67. When the slider 5 is moved in the direction of detaching the memory card from the state that the notch for the lock and the engaging part 91 are engaged, the elastic contact part 92 of the card lock 9 is moved along the slope 67 and thus, the engaging part 91 integrated with the elastic contact part 92 is moved and the notch for the lock and the engaging part 91 are disengaged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a memory card socket for connecting a memory card and a circuit board.

[0002]

2. Description of the Related Art Conventionally, as a memory card socket (hereinafter, simply referred to as a socket) for connecting a memory card and a circuit board, for example, those shown in FIGS. 5 and 6 have been proposed. This socket 1 is used for a memory card 2 which is an SD memory, and has a housing 3 into which a memory card 2 having a lock notch 21 at one end is slidably inserted in a direction along the side edge. Prepare The housing 3 includes a plurality of contacts 4 that respectively come into contact with a plurality of connection terminals (not shown) provided on the back surface of the memory card 2, and the housing 3 as the memory card 2 is inserted and removed.
And a slider 5 which is slidable with respect to.

The shape of the slider 5 is shown in FIGS.
The slider 5 is a synthetic resin molded product, and includes a contact portion 51 that contacts the upper right corner of the memory card 2 in FIG. 5, and a main body portion 52 extending from the contact portion 51 along the sliding direction of the memory card 2. Have. Further, the slider 5 integrally has an engagement piece 53 extending from the contact portion 51 along the main body portion 52 and facing the back surface of the memory card 2. The engaging piece 53 is flexible in the left-right direction in FIG.
A locking claw 54 that can be engaged with the lock notch 21 is provided at the tip of the protrusion 3.

In the above structure, when the memory card 2 is inserted into the housing 3, the engaging claw 54 is locked by the lock notch 21.
The memory card 2 is held by the slider 5 by engaging with. That is, the memory card 2 is prevented from coming off the housing 3 due to external vibration or the like.

[0005]

However, in the above configuration, when the memory card 2 is removed from the housing, the slider 5 is moved to a position where the memory card 2 can be removed.
Since the engagement between the memory card 2 and the engaging claw 54 is not released even when is moved, it is necessary to apply a relatively strong force when removing the memory card 2, which causes a problem that the memory card 2 is difficult to remove. .

The present invention has been made in view of the above circumstances, and an object thereof is to make it difficult to remove the memory card from the housing when the memory card is mounted in the housing, but to remove the memory card from the housing with a relatively small force. It is to provide a socket for a memory card that can be easily removed.

[0007]

According to a first aspect of the present invention, a memory card having a lock notch at one side edge is slid in a direction along the side edge and is inserted / removed, and a connection provided on the memory card is also provided. A housing that holds a plurality of contacts that come into contact with the terminals, a slider that slides with respect to the housing as the memory card is inserted and removed, and engages with the locking notch when the memory card is mounted in the housing And a card lock having an engaging portion for engaging with the memory card, the one surface of the housing adjacent to the side edge when the memory card is mounted is inclined toward the memory card toward a direction in which the memory card is inserted. An inclined surface is provided, the card lock has an elastic contact portion that elastically contacts the inclined surface integrally with the engaging portion, When the slider is moved in the direction of pulling out the card from the housing, the elastic contact portion moves in the direction away from the memory card along the inclined surface, whereby the engagement between the locking notch and the engaging portion. The feature is that the combined state is released.

According to a second aspect of the present invention, in the memory card socket according to the first aspect, the elastic contact portion and the engaging portion are made of metal.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The basic structure of this embodiment is the same as the conventional structure, and therefore common parts will be described with reference to FIGS.

The memory card 2 used in this embodiment is SD
As shown in FIG. 5, the memory card has a rectangular outer peripheral shape, and a notch 23 for preventing reverse insertion is formed by dropping the upper right corner in FIG. Further, a lock notch 21 recessed in a rectangular shape is provided on one side edge of the memory card 2 where the notch 23 is formed. As shown in FIG. 5, on both sides of the back surface side of the memory card 2, a step portion 2 that narrows the width of the back surface side than the width of the front surface side is formed.
2 is formed. Furthermore, a plurality of connection terminals are provided on the back surface of the memory card 2.

In the socket 1 of this embodiment, the housing 3 comprises a body 6 and a shell 7, and the body 6
The memory card 2 is inserted between the shell and the shell 7.

The body 6 is made of a synthetic resin molding and has a rectangular flat plate-like base plate 62 facing a part of the back surface of the memory card 2. A pair of arms 61a, 61b extending in one direction along both side edges of the base plate 62 in the longitudinal direction are integrally provided with the base plate 62, and the base plate 62 and the arms 61a, 61b are formed in a U shape as a whole. Has been formed. The arms 61a, 61b and the base plate 62 share one side edge, and a rear surface plate 63 is erected on the side surface of the base plate in FIG. A side plate 64a is erected on the right side edge of the right arm 61a in FIG. 6, and a side plate 64b is erected on the left side edge of the left arm 61b in FIG.

On the other hand, the shell 7 has a U-shaped cross section,
The body 6 is formed so as to overlap the side plates 64a and 64b from the outside.
Combined with.

The left side edge of the arm 61a and the arm 6
At the right side edge of 1b, card guides 65a and 65b that mesh with the step portion 22 of the memory card 2 and restrict the movement of the memory card 2 in the left-right direction in FIG. 6 are provided. Card guides 65a, 65b
Slide along. Each card guide 65a, 65b
At the front end portion (the downward direction in FIG. 6 is the front direction), the card introducing portions 66a and 66b are inclined toward the front so as to widen both the lateral width between the card guides 65a and 65b and the distance to the shell 7. Is provided. When inserting the memory card 2 between the body 6 and the shell 7, the memory card 2 is guided by the card introducing portions 66a and 66b, so that the inserting operation of the memory card 2 is facilitated.

The base plate 62 holds a plurality of (9) contacts 4 which respectively contact a plurality of connection terminals provided on the memory card 2. One end of each contact 4 has arms 61a, 61 up to a position where it does not overlap with the base plate 62.
It is extended along b.

By the way, the slider 5 is mounted on the arm 61a. The slider 5 is a card guide 6
5a and the side plate 64a, the main body 52 movable in the front-back direction, and the card guide 65a from the rear end of the main body 52.
A contact portion 51 that extends toward the memory card 2 side through the gap between the shell and the shell 7 and contacts the front surface of the memory card 2 and the cutout portion 23.
Have and.

The slider 5 is restricted in its moving direction by the card guide 65a, the side plate 64a, the shell 7 and the arm 61a, and the memory card 2 is inserted into the housing so that the connection terminal of the memory card 2 comes into contact with the contact 4. And the slider 5 slides between the position where the memory card 2 can be removed from the housing 3.

A coil spring 8 for urging the slider 5 in the forward direction is mounted on the front side of the end of the rear plate 63 on the arm 61a side.

The features of the present invention will be described below with reference to FIGS. 1 to 4. In the following description, the lower side in FIG. 1 is the front side, the upper side in FIG. 1 is the rear side, the front side of the paper surface in FIG. As shown in FIG. 1, in the present embodiment, the slider 5 is provided with a card lock 9 made of a metal wire.
With the memory card 2 attached to the housing 3, the engaging portion 91 provided on the card lock 9 is configured to be engaged with the lock notch 21 of the memory card 2. This configuration will be specifically described below.

The card lock 9 has a mounting portion fixed to the slider 5 at a rear end portion thereof, has a first bent portion which is bent to the left side at a front end portion at a substantially right angle, and also has a substantially downward angle at a substantially right angle. It is formed in a shape having a bent second bent portion.

A recess 55 is formed on the upper surface of the slider 5 for accommodating most of the card lock 9. Hollow 55
In order to secure the bending margin of the card lock 9, the card lock 9 is formed wider toward the front, and the right side of the front end is opened. An opening 57 is provided on the left side of the front end of the recess 55.

A narrow groove 56 into which the rear end of the card lock 9 fits is formed at the rear end of the recess 55, and the rear end of the card lock 9 is fixed to the slider 5 in the groove 56. By the way, on the side surface of the card guide 65a that faces the slider 5, an inclined surface 67 that is inclined rearward to the left is provided. The front end of the card lock 9 passes through the opening 57, and the vicinity of the lower end of the second bent portion is elastically contacted with the inclined surface 67. That is, the vicinity of the second bent portion of the card lock 9 is the engaging portion 91 that engages with the lock notch 21, and the tip end portion is the elastic contact portion 9 that elastically contacts the inclined surface 67.
Functions as 2.

When the memory card 2 is mounted in the housing 3, the slider 5 and the card lock 9 are in the positions shown in FIG. 3, and in this position, the locking notch 21 of the memory card 2 is engaged with the engaging portion of the card lock 9. 91 is engaged,
The memory card 2 is prevented from falling off the housing 3.

On the other hand, when the slider 5 moves forward from the position shown in FIG. 3, the elastic contact portion 92 moves rightward along with the engaging portion 91 along the inclined surface 67 as shown in FIG. Therefore, by appropriately designing the inclined surface 67, the memory card 2
When is moved from the housing 3 to a removable position, the engagement between the locking notch 21 of the memory card 2 and the engaging portion 91 can be released. In this way, as the slider 5 moves forward, the engagement between the engagement portion 91 and the lock notch 21 is released, so that the memory card 2 can be easily removed. The inclined surface 67
Memory card 2 by designing the shape of
It is possible to adjust the engagement depth between the lock notch 21 and the engaging portion 91, and appropriately design the holding force of the memory card 2 with the memory card 2 mounted in the housing 3. You can

Further, in the conventional structure, since the engaging claw 54 is a synthetic resin molded product, the engaging force of the memory card 2 may be reduced due to wear of the engaging claw 54.
In the configuration of the present embodiment, since the card lock 9 is made of metal, a decrease in the locking force of the memory card 2 due to wear of the engaging portion 91 and the elastic contact portion 92 is suppressed.

[0026]

According to the first aspect of the present invention, a memory card having a lock notch on one side edge is slid in a direction along the side edge and is inserted / removed, and contacts a connection terminal provided on the memory card. A housing that holds a plurality of contacts, a slider that slides with respect to the housing when the memory card is inserted and removed, and an engaging portion that engages with the locking notch when the memory card is mounted in the housing And a card lock having
An inclined surface is provided on one surface of the housing, which is adjacent to the side edge when the memory card is mounted, and is inclined toward the memory card toward a direction in which the memory card is inserted. An elastic contact portion that elastically contacts a surface is integrally formed with the engaging portion, and when the slider is moved in a direction to pull out the memory card from the housing, the elastic contact portion separates from the memory card along the inclined surface. When the memory card is mounted in the housing, the engaging portion engages with the locking notch when the memory notch is engaged with the engaging portion. Prevents the memory card from falling out of the housing, while
When the memory card is placed in a position where it can be removed from the housing, the engagement between the memory card and the card lock is released, and it is not necessary to apply extra force to the card lock when removing the memory card. This has the effect of making it easier to pull out. Further, there is an advantage that the holding force for the memory card can be freely set by selecting the shape of the inclined surface.

According to a second aspect of the present invention, in the memory card socket according to the first aspect, since the elastic contact portion and the engagement portion are made of metal, the elastic contact portion can be repeatedly inserted and removed. There is no reduction in the locking force due to wear of the engaging parts.

[Brief description of drawings]

FIG. 1 is a plan view of relevant parts showing the vicinity of a slider according to an embodiment of the present invention.

FIG. 2 is a plan view of an essential part of a state where the memory card is not locked in the embodiment of the present invention.

FIG. 3 is a plan view of the essential parts of the memory card locked according to the embodiment of the present invention.

FIG. 4 is a left side view of the main part of the above.

FIG. 5 is an exploded perspective view showing a relationship between a memory card and a socket.

FIG. 6 is a plan view showing a state in which a shell is removed.

FIG. 7 is a main part plan view showing the vicinity of a slider in a conventional example.

FIG. 8 is a side view of an essential part showing the vicinity of a locking piece of a slider in a conventional example.

[Explanation of symbols]

1 socket 2 memory card 21 Lock notch 3 housing 4 contacts 5 slider 67 Inclined surface 9 card lock 91 Engagement part 92 bullet contact part

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 5B058 CA04 CA13 KA24 YA20                 5E021 FA05 FB18 FC31 FC36 HC11                       HC36                 5E023 AA04 AA21 CC23 GG09 GG15                       HH17

Claims (2)

[Claims] 1. A memory card having a lock notch on one side edge is slid in a direction along the side edge and is inserted / removed, and a plurality of contacts for contacting connection terminals provided on the memory card are held. A housing, a slider that slides with respect to the housing when the memory card is inserted and removed, and a card lock having an engaging portion that engages with the locking notch when the memory card is mounted in the housing In the housing, one surface adjacent to the side edge when the memory card is mounted is provided with an inclined surface that is inclined toward the memory card toward the direction in which the memory card is inserted, and the card lock is An elastic contact portion that elastically contacts the inclined surface is integrally formed with the engaging portion, and the memory card is pulled out from the housing. When the slider is moved in the direction, the elastic contact portion moves in the direction away from the memory card along the inclined surface, so that the engagement state between the lock notch and the engagement portion is released. Memory card socket characterized by. 2. The memory card socket according to claim 1, wherein the elastic contact portion and the engagement portion are made of metal.