JP2003123897A - Card connector and card lock mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a card connector in simple structure and small size, which locks a card with high reliability even without providing a notched part at the side part of the card. SOLUTION: A card connector 1 has a card holding space 12 to and from which, a card is inserted and pulled out through an opening 11, and card lock mechanisms 2 having a card checker 4 are arranged at the top end part of respective guide arms extending form both ends of a card holder 6. The card lock mechanisms 2 is not interlinked with an eject mechanism 3 for ejecting the card held in the card holding space 12. The card checker 4 is rotatably held around an axis having the same direction with the direction of inserting and pull out the card, and moves from a contact position to a retracting position by being pressed by the card when the card is inserted into the card holding space 12. The eject mechanism 3 ejects the card utilizing the energy of elasticity reserved when the card is inserted into the card holding space 12.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an SD card (Secu
The present invention relates to a card connector and a card lock mechanism for receiving an IC card such as a memory card such as a re Digital Card) and an MMC (MultiMedia Card), an interface card, or the like.

[0002]

2. Description of the Related Art An IC card such as an SD card, a memory card such as an MMC or an interface card, which is mounted in a connector of an electronic device such as a computer, is preferably locked at a mounting position so that the IC card does not come out of the connector. Techniques for locking the above-mentioned card include, for example, Japanese Patent Laid-Open Nos. 63-241887, 2000-277207, and 2001-1.
Japanese Patent No. 18633 discloses a technique of locking a card by providing a protrusion having a variable protrusion amount toward the inside of the arm and engaging the protrusion with a notch provided on a side surface of the card. Has been done.

Further, in JP-A-8-250208 and JP-A-8-293350, a position where the card removal preventing member does not hinder the insertion and removal of the card in accordance with the operation by the user and the rear end surface of the mounted card are disclosed. There is described a technique capable of selectively setting the position of contact with the. According to this technique, even a card having no cutout portion can be locked at the mounting position.

Further, in JP-A-7-240256 and JP-A-10-289754, a position at which the card removal preventing member does not hinder the insertion and removal of the card by interlocking with a push rod type eject mechanism for ejecting the card. There is described a technique capable of selectively taking a position of contacting the rear end surface of the mounted card.
According to this technique, even a card having no cutout can be locked at the mounting position, and the card can be easily ejected by providing the eject mechanism.

[0005]

However, the techniques described in the above publications have the following problems, respectively. First, JP-A-63-241887, JP-A-2000-277207 and JP-A-2001-11.
According to the technique disclosed in Japanese Patent No. 8633, it is possible to lock a card such as an SD card having a notch on the side surface, but it is not possible to lock a card such as an MMC having no notch on the side surface. Since these two types of cards are compatible, a card locking mechanism that can only be used on one side does not make sense. If a mechanism that displaces the protruding body to the retracted position due to button operation etc. is not provided, the protruding body will be automatically displaced to the retracted position when the card is manually removed. It is necessary to make the side surface (that is, the side that comes into contact with the card when taking out the card) an inclined surface. However, if the back side surface of the protrusion is inclined as described above, the protrusion may be displaced to the retracted position and the card may slip out even when the card vibrates due to vibration or the like.

Further, in the techniques disclosed in Japanese Patent Laid-Open Nos. 8-250208 and 8-293350, the card can be locked regardless of the presence or absence of the notch on the side surface, and the card slip-out preventing member can be used as the card. Although it is possible to improve the reliability of the card lock by arranging it at a position facing the rear end face, the card removal prevention member is manually displaced to a position that does not hinder the insertion and removal of the card before and after card insertion. There is a need. That is, manual operation is required once when the card is inserted into the connector, once when the card is taken out from the connector, and at least twice in total from the card insertion to the card removal.

Further, in the card connector technology disclosed in JP-A-7-240256 and JP-A-10-289754, the card removal preventing member does not hinder the insertion and removal of the card before the card is inserted into the connector. Although the manual operation of manually displacing it to the position is not required, the complexity of the work is eliminated, but the push rod type card eject mechanism works in conjunction with the card lock mechanism, so the connector The occupied area is relatively large and it is difficult to reduce the size. Further, since the eject mechanism itself has a complicated structure with a relatively large number of parts in order to interlock with the card lock mechanism, there is a problem that the manufacturing cost becomes high.

The present invention has been made in view of the above problems, and one of the objects of the present invention is to lock a card with high reliability regardless of the presence or absence of a notch on the side surface of the card. (EN) Provided is a card connector which can be easily ejected from a connector and has a small size and a simple structure.

Another object of the present invention is to provide a card lock mechanism which can lock a card with high reliability regardless of the presence or absence of a notch on the side surface of the card and which requires a small number of manual operations. It is to be.

[0010]

The invention according to claim 1 of the present application is as follows.
In a card connector having a card holding space in which a card can be inserted and removed through an opening, an eject mechanism for ejecting a card in the card holding space and the card holding space without interlocking with the eject mechanism And a card lock mechanism having a movable member capable of selectively taking a contact position for contacting the rear end surface of the card held by the card and a retracted position that does not hinder the insertion and removal of the card through the opening. It is a card connector.

According to the connector described above, since the movable member automatically contacts and locks the rear end face of the card upon completion of the card mounting, it is also effective for a card having no notch such as MMC. In addition, the reliability of the card lock is improved even against vibration applied to the mounted device. Also, since the eject mechanism is provided, the card can be easily ejected from the connector, and the eject mechanism has a structure that does not interlock with the card lock mechanism, which makes it more complicated than the conventional push rod type eject mechanism. It is not necessary to adopt such a mechanism, the occupation area is relatively small, and the structure can be reduced in size and cost with a simple structure.

The card connector according to claim 2 of the present application is
In claim 1, the eject mechanism ejects the card by utilizing elastic energy stored when the card is inserted into the card holding space.

According to the above-mentioned connector, the stored elastic energy is released only by releasing the card lock mechanism, and the card is automatically ejected. Therefore,
Since the eject mechanism works only by the operation of displacing the card lock mechanism, the complexity of the operation is eliminated and the card can be easily discharged from the connector. In addition, comparing with the push rod type eject mechanism that has been conventionally used as an eject mechanism that interlocks with the card lock mechanism,
The occupied area is small, and it is possible to realize downsizing and cost reduction with a simple structure.

Further, according to the invention of claim 3 of the present application, a contact position for contacting the rear end face of the card held in the card holding space in which the card can be inserted and removed through the opening, and the card through the opening It is possible to selectively take a retracted position that does not hinder insertion and removal, and is displaced from the contact position to the retracted position by being pressed by the card when it is inserted into the card holding space. And a resilient member that biases the movable member in a direction in which the movable member is displaced to the abutting position.

According to the card lock mechanism described above, the movable member is displaced against the elastic force of the elastic member to the retracted position where it does not hinder the insertion and removal of the card in the process of inserting the card, and the elasticity of the elastic member is completed when the card insertion is completed. The movable member urged by the force is displaced to the contact position and contacts the rear end surface of the card. Therefore, in addition to being effective for a card that does not have a cutout portion such as MMC and improving the reliability of the card lock against vibration applied to the mounted device,
No manual operation is required to displace the movable member to the retracted position before inserting the card, and since the card is automatically locked when the card is completely installed, the number of manual operations required from card insertion to removal is small. I will be done.

Here, if the movable member is rotatably supported about the same direction as the card insertion / removal direction (claim 4), the reliability of the card lock is further improved. That is, even if a force is applied to the card in the insertion / removal direction, if the movable member rotates about the insertion / removal direction of the card, the force does not work in the direction of rotating the movable member. The card is less likely to come off than when the card is supported so as to be rotatable about an axis orthogonal to the insertion / removal direction.

The movable member has a first surface that comes into contact with the card when the card is inserted into the card holding space and a second surface that comes into contact with the rear end surface of the card held in the card holding space. And a surface (claim 5). According to claim 5, the surface that comes into contact with the card when the card is inserted into the card holding space and the surface that comes into contact with the rear end surface of the card held in the card holding space are different surfaces, You will be able to lock the card securely.

[0018]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view showing a card connector according to an embodiment of the present invention. FIG. 2 is a cross-sectional view showing stepwise a process of inserting the card into the upper part of the card connector according to FIG. 1 and a virtual side view with the card omitted. FIG. 3 is a perspective view showing a card retainer included in the card connector according to FIG. FIG. 4 is a perspective view of the card retainer of FIG. 3 viewed from the opposite side.

First, in the card connector 1 of this embodiment shown in FIGS. 1 and 2A to 2C, there are two card holding spaces 12 into which the card 10 can be inserted and removed through the opening 11. It is provided with a card holder 6 which is formed and on which two cards 10 can be mounted at the same time. A guide arm 7 having a guide groove 8 extends at both ends of the card holder 6, and the card 1 extends along the guide groove 8 of the guide arm 7.
0 is guided into the card holder 6, and when the card 10 is completely installed in the card connector 1 as shown in FIG. 2C, the contact (not shown) provided on the back surface of the card 10 is shown. No.) and a plurality of terminals 9 provided on a plate that contacts the lower surface of the card holding space 12 are connected.

Such a card connector 1 is installed, for example, on a circuit board, and the terminals 9 are connected to a conductive portion on the surface of the board by soldering or the like. The length of the card connector 1 is about 45 mm, the width is about 30 mm, and the height is 6 m.
m (height of the card holding space 12: 2.4 mm), and may be a molded product made of, for example, an insulating synthetic resin. Further, the concave portion 1 on the surface of the card holder 6 shown in FIG.
A strip-shaped metal plate may be attached to 5 for grounding.

At the tip of each guide arm 7 extending to both ends of the card holder 6, a card holder 4 as a movable member,
A card lock mechanism 2 including a torsion spring 5 (see FIG. 2) built in the guide arm 7 is arranged along the extending direction of the guide arm 7. In the present embodiment, the card lock mechanism 2 that contacts the right side of the rear end face of the card 10 with respect to the card 10 mounted on the upper stage of the card holder 6 and the left side of the rear end face of the card 10 with respect to the card 10 mounted on the lower stage of the card holder 6, Function. As described above, the card lock mechanism 2 of the present embodiment locks only one end of the rear end face 10a with respect to each card 10 mounted in the card holder 6, but in order to further improve the reliability of the card lock, Both ends of the rear end surface 10a may be locked. That is, the card holders 4 may be arranged on both sides of each card holder 6.

Since the card lock mechanism 2 of the present embodiment is a type for pressing the card rear end surface 10a, it is effective even for a card having no cutout portion such as MMC, and the cutout portion 10b is engaged with the elastic piece. The reliability of the card lock against vibration or the like applied to the mounted device is improved as compared with the case of locking only by performing the locking.

Next, the card retainer 4 of the card lock mechanism 2
Will be described with reference to FIGS. 3 and 4. As shown in FIGS. 3 and 4, the card retainer 4 has a triangular prism-shaped base 4f.
Two cylindrical portions 4d project from the bottom surface of the base portion 4f, and triangular protrusions 4c are provided on the side surfaces in the removal direction of the card 10, and further, from the upper portion of the base portion 4f, the card connector 1 is provided. The convex piece 4e is provided toward the opening 11. As shown in FIG. 1, the two cylindrical portions 4d are fitted to a shaft member 14 having an axis in the same direction as the card 10 insertion / removal direction. It is supported so that it can rotate in any direction. The convex piece 4e includes the first surface 4a that abuts the oblique cutout portion 10c of the card 10 when the card 10 is inserted into the card holding space 12, and the rear end surface of the card 10 held in the card holding space 12. 10a and the 2nd surface 4b which contacts.

When the card retainer 4 rotates about the shaft member 14, the card retainer 4 contacts the rear end surface 10a of the card 10 held in the card holding space 12 without interlocking with the eject mechanism 3 described later. Contact position (Fig. 2
(See (a) and (c)) and a retracted position (see FIG. 2 (b)) that does not hinder the insertion and removal of the card through the opening 11 can be selectively set. The card retainer 4 included in the card lock mechanism 2 on the right side of the rear end surface of the card 10 has a rotation axis at the same height as the lower part of the card holder 6 and a convex piece 4e at the same height as the upper part of the card holder 6. Has become. Further, in the card retainer 4 included in the card lock mechanism 2 on the left side of the rear end face of the card 10, the rotation axis is at the same height as the upper part of the card holder 6, and the convex piece 4e is the same as the lower part of the card holder 6. It is high.

On the other hand, the torsion spring 5 of the card lock mechanism 2 is arranged inside the guide arm 7 along the extending direction of the guide arm 7 so as to be paired with the card retainer 4. More specifically, the torsion spring 5 included in the card lock mechanism 2 on the right side of the rear end surface of the card 10 is
It is arranged at the same height as the upper part of the card holder 6. The torsion spring 5 included in the card lock mechanism 2 on the left side of the rear end face of the card 10 is arranged at the same height as the lower part of the card holder 6. That is,
In the card lock mechanism 2, a pair of card holders 4
The shaft center and the torsion spring 5 are vertically separated. The tip of the torsion spring 5 is shown in FIGS.
As shown in (a) to (c), it is in contact with the outer surface of the card retainer 4. The torsion spring 5 plays a role of preventing the card retainer 4 from rotating more outward than necessary. When the card retainer 4 is displaced to the retracted position when the card 10 is inserted into the card holding space 12, the torsion spring 5
The tip end of is pressed by the convex piece 4e of the card retainer 4 to store elastic energy. And the card 10 is the card holder 6
When the card rear end face 10a is completely positioned inside the card holding member 4 and the second face 4b of the convex piece 4e of the card retainer 4 is located, the elastic energy stored in the torsion spring 5 is released, and the restoring force of the torsion spring 5 is released. As a result, the card retainer 4 is displaced to the original contact position. As one modification, the torsion spring 5 is
It may be wound around the shaft member 14.

Next, the operation of the card lock mechanism 2 in the process of inserting the card 10 into the upper stage of the card connector 1 will be described with reference to FIGS. 2 (a) to 2 (c). The card retainer 4 is in the contact position as shown in FIG. 2A when the card is not inserted. Then, when the card 10 is inserted into the card holding space 12, the first surface 4a of the convex piece 4e of the card retainer 4 is pressed by the oblique cutout portion 10c on the front end piece side of the card 10 to insert the card 10. Along with this, a force is applied to the card retainer 4 in the direction of arrow A in FIG. 2B, and the card retainer 4 is displaced from the contact position to the retracted position shown in FIG. 2B. Therefore, a manual operation for displacing the card retainer 4 to bring it into a card receiving state before inserting the card 10 is not necessary.

In this embodiment, since the diagonal cutout portion 10c of the card 10 is on the right side of the front end face, when the card 10 is inserted in the lower stage of the card connector 1, the first surface of the convex piece 4e of the card retainer 4 is changed. 4a is pressed by the left corner portion of the card front end surface 10d, not by the diagonal cutout portion 10c on the one side of the front end of the card 10, but the operation of the card retainer 4 during the insertion process is the same as in the case of the upper stage.

In the present embodiment, as described above, since the card retainer 4 of the card lock mechanism 2 can rotate about the same direction as the insertion / removal direction of the card 10, the reliability of the card lock is improved. In other words, even if a force is generated in the card 10 in the insertion / removal direction, the card retainer 4 does not rotate due to the force, so that the card retainer 4 is rotatably supported with respect to the axis orthogonal to the insertion / removal direction of the card 10. The card 10 is more difficult to pull out than when the

As shown in FIGS. 2 (a) to 2 (c), the card 10 in the card holding space 12 is located at the back of the guide arm 7 in the card 10 insertion direction.
The eject mechanism 3 for discharging the
The eject mechanism 3 includes a coil spring 3a wound around the insertion / removal direction of the card 10 as an axis, and a pusher 3b movable by being pressed by the tip of the card 10 together with the coil spring 3a. This pusher 3b
Is a diagonal cutout portion 1 of the card 10 in the present embodiment.
It is a triangular plate material having a surface corresponding to 0c, and its shape is the card front end surface 10d or the oblique cutout portion 10c.
It may be changed according to the shape of.

When the card 10 is inserted into the card holding space 12 of the card holder 6, the pusher 3b and the oblique cutout portion 10c of the card 10 come into contact with each other. When the card 10 is further inserted, the pusher 3b moves in the insertion direction together with the card 10, and the coil spring 3a of the eject mechanism 3 is pushed by the pusher 3b.
It gradually shrinks as shown in (b) and (c).
In this way, the coil spring 3a of the eject mechanism 3 stores elastic energy as the card 10 is inserted.

When the card 10 is completely installed in the card holder 6, a force is applied by the torsion spring 5 in the direction of arrow B in FIG.
Moves to the original contact position, and the card rear end surface 10a contacts the second surface 4b of the convex piece 4e of the card retainer 4.
Thus, when the card 10 is completely installed in the card holder 6, the card 10 is automatically locked.

Next, when the card 10 mounted on the card holder 6 is to be ejected, the protrusion 4c of the card retainer 4 of the card lock mechanism 2 is turned in the direction of arrow A in FIG. The card holder 4 is shown in Fig. 2 (b).
Displace to the retracted position as shown in. When the card lock by the card lock mechanism 2 is released in this way, the elastic energy stored in the coil spring 3a of the eject mechanism 3 is released, and the card 10 is automatically ejected. Therefore, since the eject mechanism 3 operates only by the operation of releasing the card lock mechanism 2, the complexity of the operation is eliminated.

As described above, according to the present embodiment, the manual operation for displacing the card retainer 4 to the retracted position before the card 10 is inserted is unnecessary, and the card 10 is automatically locked when the card mounting is completed. As a result, the number of manual operations required from card insertion to card removal is very small, only once.

The eject mechanism 3 included in the card connector 1 of the present embodiment functions without interlocking with the card lock mechanism 2. Therefore, unlike the conventional one that includes a push rod type eject mechanism,
The card connector 1 has a relatively small occupying area, and can be configured to have a simple structure to achieve downsizing and cost reduction.

Further, it is preferable to dispose a leaf spring 17 made of a conductive member in the card connector 1 at the inner side in the insertion direction of the card 10. When the card 10 is not inserted in the card holding space 12, the leaf spring 17 is moved to the position shown in FIG.
Although it projects toward the inside of the card holder 6 as shown in (b), as the card 10 is inserted into the holder 6, the card front end face 10d abuts against the leaf spring 17 and deforms it. Then, when the card 10 is completely installed in the card connector 1 as shown in FIG. 2C, the tip of the leaf spring 17 contacts the pad 19 arranged at the innermost position of the connector. As a result, it is possible to detect that the card 10 is mounted in the predetermined position.

Although the card 10 shown in FIG. 2 is a memory card having the cutout portion 10b, it may be an IC card such as an MMC having no cutout portion 10b. In addition, when installing the card,
As shown in FIG. 2, the write detecting unit 10e, which is a recess provided on one side of the card side surface and selectively closed (by a slide shutter (not shown)), and the elastic piece 13 provided on the card connector 1 are engaged with each other. May be.
As a result, the card 10 is adjusted according to the engagement position of the elastic piece 13.
It is possible to detect whether the overwriting is possible or not.

The card connector 1 according to the present invention is not limited to the above embodiment, and may have the following forms, for example. (1) The card retainer 4 of the card lock mechanism 2 is not limited to the shape of this embodiment, and can have various shapes. (2) The card connector 1 of this embodiment has two card holding spaces 12, that is, a two-stage structure in which two cards 10 can be mounted at the same time. However, the present invention is not limited to this, and an arbitrary number of It may have a structure to which the card 10 can be attached. For example, in the case of a one-step structure, when the rotatable card retainer 4 is provided as the card lock mechanism 2, the cylindrical portion 4d serving as the rotation center may be provided above or below the guide arm 7. (3) The eject mechanism 3 of the present embodiment has the coil spring 3a.
However, various other configurations such as a push rod type and an eject lever type (see, for example, JP-A-7-240256 and JP-A-10-289754) may be adopted. Further, the position of the eject mechanism 3 is not limited to the inner part in the insertion direction of the one guide arm 7. However, in claim 1, it is necessary to use the eject mechanism 3 that does not interlock with the card lock mechanism 2. On the other hand, the card lock mechanism 2 of claim 3 is
It does not necessarily have to be used with the eject mechanism 3 that does not interlock with the card lock mechanism 2, and may be used with the eject mechanism 3 that interlocks with the card lock mechanism 2. (4) The card 10 is not limited to an IC card, and any type of card can be used. (5) The elastic member is not limited to the torsion spring, but various types of springs and rubber can be used.

[0038]

As described above, according to the first aspect of the present invention, since the movable member automatically abuts and locks the rear end face of the card upon completion of mounting the card, there is no notch portion such as MMC. It is also effective for the card, and the reliability of the card lock is improved even against vibration applied to the mounted device. Also, since the card has an eject mechanism, the card can be easily ejected from the connector, and the eject mechanism has a structure that does not interlock with the card lock mechanism. There is no need, the occupied area is relatively small, and the structure can be reduced in size and cost with a simple structure.

According to the second aspect, the elastic energy stored is released only by releasing the card lock mechanism, and the card is automatically ejected. Therefore, since the eject mechanism works only by the operation of displacing the card lock mechanism, the complexity of the operation is eliminated and the card can be easily ejected from the connector. Further, as compared with a push rod type eject mechanism conventionally used as an eject mechanism interlocking with a card lock mechanism, the occupied area is small, and the size and cost can be reduced with a simple structure.

According to the third aspect of the present invention, the movable member is displaced to the retracted position where it does not hinder the insertion / removal of the card against the elastic force of the elastic member in the process of inserting the card, and the elastic force of the elastic member is added when the card is inserted. The biased movable member is displaced to the contact position and contacts the rear end surface of the card. Therefore, M
This is effective for cards that do not have cutouts such as MCs, and improves the reliability of the card lock against vibrations applied to the mounted device. In addition, the movable member is moved to the retracted position before inserting the card. Since the manual operation for displacing the card is not necessary and the card is automatically locked when the card is completely mounted, the number of manual operations required can be reduced.

According to the fourth aspect, even if a force is generated in the card insertion / removal direction, when the movable member rotates about the card insertion / removal direction, the force does not work in the direction in which the movable member is rotated. For example, the card is less likely to come off than when the movable member is rotatably supported about an axis orthogonal to the card insertion / removal direction.

According to the fifth aspect, the card can be securely locked.

[Brief description of drawings]

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

2A and 2B are a sectional view and a rear view showing stepwise a process of inserting a card into an upper stage of the card connector according to FIG.

FIG. 3 is a perspective view showing a card retainer included in the card connector according to FIG.

FIG. 4 is a perspective view of the card retainer of FIG. 3 viewed from a substantially opposite side.

[Explanation of symbols]

1 card connector 2 Card lock mechanism 3 eject mechanism 3a coil spring 3b pusher 4 Card holder (movable member) 4a First surface 4b second side 4e convex piece 5 Torsion spring (elastic member) 6 card holder 7 Guide arm 8 guide groove 9 terminals 10 cards 10a card rear edge 10b Notch 10c Diagonal notch 10d card front edge 11 openings 12 card holding space 13 Elastic piece 14 Shaft member 15 recess 17 leaf spring

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Akira Yamamoto             3-9-23 Takeshima, Nishiyodogawa-ku, Osaka-shi, Osaka               Nippon Crimp Terminal Manufacturing Co., Ltd.             Inside (72) Inventor Naoki Kurasaki             3-9-23 Takeshima, Nishiyodogawa-ku, Osaka-shi, Osaka               Nippon Crimp Terminal Manufacturing Co., Ltd.             Inside F-term (reference) 2C005 MA31 NA03 NA19 TA08 TA21                 5B058 CA03 CA04 CA13 KA12 KA24                 5E021 FB18 FC09 FC31 FC36 FC40                       HB01 HB11 HB15 HC11 HC36                 5E023 AA21 BB25 DD11 DD19 GG09                       HH08 HH30

Claims (5)

[Claims] 1. A card connector having a card holding space in which a card can be inserted and removed through an opening, an eject mechanism for ejecting a card in the card holding space, and an eject mechanism without interlocking with the eject mechanism. A card lock having a movable member capable of selectively taking a contact position in contact with a rear end face of a card held in the card holding space and a retracted position not obstructing insertion and removal of the card through the opening. A card connector having a mechanism. 2. The card connector according to claim 1, wherein the eject mechanism ejects the card by utilizing elastic energy stored when the card is inserted into the card holding space. . 3. A contact position for contacting a rear end face of a card held in a card holding space in which a card can be inserted and removed through an opening, and a retracted position that does not hinder card insertion and removal through the opening. It is possible to selectively take
A movable member that is displaced from the contact position to the retracted position by being pressed by the card when the card is inserted into the card holding space; and a movable member that is attached in a direction in which the movable member is displaced to the contact position. A card lock mechanism comprising: an elastic member that urges. 4. The card lock mechanism according to claim 3, wherein the movable member is rotatably supported about the same direction as a card insertion / removal direction. 5. The movable member includes a first surface that abuts the card when the card is inserted into the card holding space,
The card lock mechanism according to claim 3 or 4, further comprising: a second surface that comes into contact with a rear end surface of the card held in the card holding space.