JP5596430B2 - Card connector - Google Patents

Description

  The present invention relates to a card connector. In particular, the present invention relates to the structure of a connector that is electrically connected to a memory card such as a SIM (Subscriber Identity Module) card.

  A memory card, which is a card-type storage device, employs a flash memory as a storage medium. A memory card is very small and consumes little electric power for reading and writing data. For example, it is widely used as a recording medium for portable information devices represented by mobile phones and PDAs (Personal Digital Assistance).

  In recent years, a mobile phone is equipped with a memory card for information management and a memory card for recording. The former information management memory card is, for example, a SIM card, and the latter recording memory card is, for example, an SD (Secure Digital) card.

  In the SIM card, contractor information contracted with a mobile phone company is recorded. The user can be identified by inserting the SIM card into the mobile phone. In other words, by replacing the SIM card, it is possible to use mobile phones of different models that are handled by the same contractor.

  In general, a plurality of connection terminals are exposed on one surface of the SIM card. A bellows-type contact provided in the SIM card connector urges these connection terminals to electrically connect the SIM card and the card connector.

  As the above-mentioned SIM card connector, a tray type SIM card connector that minimizes the opening provided in the device necessary for attaching and detaching the card is disclosed (for example, see Patent Document 1).

  The SIM card connector according to Patent Document 1 includes a tray on which a card can be integrally mounted, and a flat housing having a plurality of contacts and a pair of opposing guide grooves that slidably guide the tray. Yes. In addition, the tray is provided with a pair of guide pins guided in the pair of guide grooves on both wings at the tip.

  In addition, as the SIM card connector described above, the size in the longitudinal direction can be reduced, the size in the height direction (mounting height) can be reduced, and furthermore, an open / close type SIM card that can achieve sufficient contact pressure. A connector is disclosed (for example, see Patent Document 2).

  The SIM card connector according to Patent Document 2 includes a housing in which a recess is formed, and a cover that is pivotably connected to one end of the housing to open and close the recess. Then, after the card is accommodated in the cover and the cover is closed, the cover is locked to the housing by sliding slightly in parallel with the bottom surface of the recess.

JP-A-8-87582 JP 2000-260537 A

  For example, a so-called manual feed type SIM card connector, which includes a housing having a plurality of contacts and a cover covering the housing, is built in the mobile phone.

  In general, a cellular phone accommodates a plate-like battery in a recess provided on the back side opposite to the operation unit and the display unit. The manual feed type SIM card connector is arranged so that the SIM card slides on the bottom surface of a recess provided in the mobile phone.

  A mobile phone provided with a manual-type SIM card connector can be removed by removing the back cover and battery from the mobile phone body and moving the SIM card to the concave side provided on the mobile phone with a fingertip. .

  In addition, the tray type SIM card connector according to Patent Document 1 has a part of the inner wall constituting the recess provided in the mobile phone opened, and most of the tray and the SIM card are accommodated in the accommodation chamber communicating with the opening. ing. And the battery is arrange | positioned at a recessed part so that the end surface of a battery may contact | abut to the end surface of a tray so that a tray may not be discharged | emitted from a housing.

  The mobile phone provided with the SIM card connector according to Patent Document 1 can take out the SIM card by removing the back cover and the battery from the mobile phone main body, placing the fingertip on the tray, and pulling out the tray.

  The open / close type SIM card connector disclosed in Patent Document 2 has a step formed in the bottom surface of a recess provided in a mobile phone, and is accommodated in a state in which the cover is closed. A battery is mounted in the recess so as to cover the cover.

  The mobile phone provided with the SIM card connector according to Patent Document 2 can take out the SIM card by removing the back cover and the battery from the mobile phone body and opening the cover.

  As described above, conventionally, it has been necessary to select a suitable connector from among various types of SIM card connectors in accordance with the design (or specification) of the mobile phone or the battery.

  If a card connector with high versatility or expandability can be realized so that it can be changed to various types of card connectors as described above, the card can be used regardless of the design (or specification) of the mobile phone or battery, for example. Connectors can be shared, contributing to a reduction in manufacturing costs. The above can be said to be the subject of the present invention.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a card connector that is rich in versatility or expandability so that it can be changed to various types of card connectors.

  The inventor of the present invention basically comprises a card connector with a housing having a plurality of contacts, a cover plate covering the housing, and a tray in which a portion for holding the card is shorter than the length of the card, and the adapter tray can be attached to and detached from the tray. It is configured to be attached and the tray and the cover can be integrally opened and closed to find that the above problem can be solved. Based on this, the following new card connector is invented. It came.

  (1) A flat plate-like tray having a first rectangular concave portion in which a card is inserted and holding the card is shorter than the length of the card, and a flat housing having a second concave portion in which the tray can be advanced and retracted And a cover plate that covers the second recess of the housing, and a plurality of contacts that are arranged in the housing and electrically connected to connection terminals arranged on one surface of the card, and the tray includes: A card connector that allows an adapter tray having a gripping part to be easily pulled out to be detachably connected to one end of the tray.

  The card connector according to the invention of (1) includes a flat tray and a flat housing. The tray has a substantially rectangular first recess in which a card is inserted and a portion for holding the card is shorter than the length of the card. The housing has a second recess in which the tray can advance and retract.

  The card connector according to the invention of (1) includes a cover plate and a plurality of contacts. The cover plate covers the second recess of the housing. The plurality of contacts are arranged in the housing. These contacts can be electrically connected to connection terminals arranged on one side of the card.

  The tray allows the adapter tray to be detachably connected to one end of the tray. The adapter tray has a grip portion that allows the tray to be easily pulled out.

  The tray may be made of an elastic member that can be easily bent and deformed (bent) in the thickness direction, or a synthetic resin having an insulating property may be molded to obtain a tray having a desired shape, and a rigid body having conductivity. The metal plate may be processed to obtain a tray having a desired shape.

  The housing is preferably provided with a pair of opposing side walls that surround both side surfaces of the tray, and the space surrounded by these side walls can be a second recess in which the tray can advance and retreat. A stop wall that abuts the front portion of the tray and stops the advancement of the tray may be provided in the second recess. When the tray moves forward and backward in the second recess, it means that a card can be placed on the tray and the tray can be advanced into the housing together with the card, or can be retracted from the housing.

  The cover plate is preferably made of a conductive metal plate, and the developed metal can be formed to obtain a conductive cover plate having a desired shape. The cover plate can function as a shield plate that surrounds the card and protects against unnecessary electromagnetic waves, and can also function as a conductive shell that covers the second recess and forms the outer shell of the card connector.

  One side of the card is the side where the sectioned pattern that becomes the connection terminal is exposed, and the card and tray urged by the contact are restricted by the cover plate from moving in the plate thickness direction, A predetermined contact pressure can be obtained.

  The contact has conductivity, and a conductive contact having a desired shape can be obtained by punching or bending a conductive metal plate. In consideration of easiness of processing, spring characteristics, conductivity, and the like, for example, a copper alloy is preferably used for the contact, but the contact is not limited to the copper alloy.

  The contact is composed of a cantilever leaf spring called a bellows contact or a cantilever contact. The contact includes a fixed piece fixed to the housing, and the fixed piece includes a form that is press-fitted into the housing, and the fixed piece may include a single-piece form that is molded into the housing. The fixed piece is preferably formed with a lead portion soldered to the printed circuit board.

  The adapter tray can be connected to the adapter tray in a detachable manner. The adapter tray is an accessory for the card connector, or an optional part that can be selected and installed by the purchaser in addition to the standard specifications. Means.

  The card connector according to the invention of (1) can be used as a manual feed type card connector by comprising a tray, a housing having a plurality of contacts, and a cover plate. In this case, it is preferable to incorporate a manual-type card connector on the device side so that the tray does not move relative to the housing.

  On the other hand, the card connector according to the invention of (1) can be moved by integrating the tray and the adapter tray by attaching the adapter tray to the tray. In addition, a tray type card connector can be realized in which the tray can be pulled out by placing a fingertip on the grip provided on the adapter tray.

  The card connector according to the invention of (1) can be changed into a tray type card connector and a manual feed type card connector depending on the presence or absence of the adapter tray. In addition, the card connector can be shared regardless of the design (or specification) of the device, which can contribute to a reduction in manufacturing cost.

  (2) The housing has a pair of rotating shafts protruding at the other end so as to face the inside of the second recess, and the tray moves in the card insertion direction when the tray is moved in the pair. The card connector according to (1), wherein the card connector has a pair of notched arc grooves on both wings of the other end portion, which are fitted to the moving shaft and rotatably connected to the tray.

  In the card connector according to the invention of (2), when the tray is moved in the card insertion direction, the arc groove is fitted to the rotating shaft, and the tray can be opened and closed with respect to the housing. That is, an open / close type card connector can be realized. In this case, it is preferable to attach an adapter tray to the tray.

  (3) The housing has a pair of engaging grooves cut into a hook shape on both wings, the cover plate has a main surface portion facing the bottom surface of the second recess, and both wings of the main surface portion are refracted. And a pair of side portions slidable on both side surfaces of the tray, and these side portions are refracted inward from each other to hold the wings of the tray from the bottom side of the tray. The card connector according to (2), wherein a holding piece and a pair of locking pieces that are bent outward and can be locked in the pair of locking grooves are provided.

  In the card connector according to the invention of (3), when the cover plate is moved in the card insertion direction with respect to the tray, the engagement between the locking groove and the locking piece is released, and the tray together with the cover plate with respect to the housing. Can be opened.

  On the other hand, when the tray is closed together with the cover plate with respect to the housing, when the cover plate is moved with respect to the tray in the direction opposite to the card insertion direction, the locking groove and the locking piece are engaged, and the tray is moved to the housing. Can be locked.

  The card connector according to the present invention can be changed into three types of a manual feed type, a tray type, and an open / close type, and is rich in versatility or expandability. The card connector according to the present invention can share the card connector regardless of the design (or specification) of the mobile phone or the battery, for example, and can contribute to the reduction of the manufacturing cost.

It is a perspective view which shows the structure of the connector for cards by one Embodiment of this invention. FIG. 4 is a perspective exploded view showing the configuration of the card connector according to the embodiment, in which the tray and the adapter tray are separated. FIG. 4 is a perspective exploded view showing the configuration of the card connector according to the embodiment, in which the tray and the adapter tray are separated. FIG. 4 is a perspective exploded view showing the configuration of the card connector according to the embodiment, in which the tray and the adapter tray are connected. It is a perspective view of the housing with which the connector for cards by the said embodiment is equipped. It is a perspective view of the card connector by the said embodiment, and is looking at the card connector from the back side. It is a perspective view of the connector for cards by the above-mentioned embodiment, and is looking at the connector for cards from the right side. It is a rear view of the card connector according to the embodiment. FIG. 4 is a perspective view of the card connector according to the embodiment, in which a tray and a cover are opened. It is a perspective view which shows 1st Example of the card connector by the said embodiment, and is a state figure which integrated the manual type card connector in the back side of a mobile telephone. It is a perspective view which shows 1st Example of the connector for cards by the said embodiment, and is a state figure which discharged | emitted the card | curd from the state of FIG. It is a perspective view which shows 2nd Example of the card connector by the said embodiment, and is a state figure which integrated the tray type card connector in the back side of the mobile telephone. It is a perspective view which shows 2nd Example of the connector for cards by the said embodiment, and is the state figure which discharged | emitted the card | curd from the state of FIG. It is a perspective view which shows 3rd Example of the connector for cards by the said embodiment, and is a state figure which incorporated the opening / closing type card connector in the back side of the mobile telephone. FIG. 15 is a perspective view illustrating a third example of the card connector according to the embodiment, in which the tray is opened together with the cover plate from the state of FIG. 14.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

[Configuration of card connector]
First, the configuration of a card connector according to an embodiment of the present invention will be described. FIG. 1 is a perspective view showing a configuration of a card connector according to an embodiment of the present invention.

  FIG. 2 is an exploded perspective view showing the configuration of the card connector according to the embodiment, in which the tray and the adapter tray are separated. FIG. 3 is an exploded perspective view showing the configuration of the card connector according to the embodiment, in which the tray and the adapter tray are separated.

  FIG. 4 is a perspective exploded view showing the configuration of the card connector according to the embodiment, in which the tray and the adapter tray are connected. FIG. 5 is a perspective view of a housing provided in the card connector according to the embodiment.

  1 to 5, a card connector (hereinafter abbreviated as “connector”) 10 according to an embodiment of the present invention includes a flat tray 1, a flat housing 2, and a cover plate 3. .

  Referring to FIGS. 1 to 5, the tray 1 has a substantially rectangular first recess 11 in which a card C is inserted and a portion for holding the card C is shorter than the length of the card C. The housing 2 has a second recess 21 in which the tray 1 can advance and retract. The cover plate 3 covers the second recess 21 of the housing 2.

  2 or 5, the connector 10 includes four cantilevered contacts 41 arranged in the front row of the housing 2 and four cantilevered contacts 42 arranged in the rear row of the housing 2. Yes. These contacts 41 and 42 can electrically connect a connection terminal (not shown) provided on one surface c1 of the card C and the printed board 1p (see FIG. 1).

  Referring to FIGS. 2 to 4, the tray 1 forms a pair of opposing side walls 1 a and 1 b. A thin rectangular parallelepiped space surrounded by the side walls 1a and 1b and the bottom wall 1c serves as a first recess 11 into which the card C is inserted. The tray 1 is formed with an escape portion 12 in the bottom wall 1c through which the plurality of contacts 41 and 42 escape when the tray 1 is advanced into the housing 2.

  2 to 4, the tray 1 has an open rear edge 11a and a pair of spaced front edges 11b and 11b. The rear edge 11a is provided with an opening for inserting the card C. The pair of front edges 11b and 11b can prevent the card C from moving because the front edge of the card C abuts when the card C advances into the first recess 11.

  Referring to FIGS. 2 to 4, the tray 1 has a pair of steps 11c and 11d protruding in opposite directions at one end of the pair of side walls 1a and 1b. When the tray 1 is inserted into the second recess 21 of the housing 2, these steps 11 c and 11 d abut against the rear edge of the housing 2 to define the insertion depth of the tray 1.

  1 to 4, the tray 1 allows the adapter tray 5 to be detachably coupled to one end of the tray 1. The adapter tray 5 has a pair of opposing arms 5a and 5b. These arms 5a and 5b project a pair of opposed rotating shafts 51a and 51b. On the other hand, the tray 1 is formed with a pair of shaft holes 11e and 11f that can be fitted to the rotating shafts 51a and 51b in the steps 11c and 11d.

  Referring to FIG. 2 or 3, when the pair of arms 5a and 5b are pulled away from each other and released after being attached to one end of the tray 1, the pair of rotating shafts 51a and 51b is turned into the shaft holes 11e and 11e. The adapter tray 5 can be connected to the tray 1 by fitting to 11f (see FIG. 1 or FIG. 2).

  Referring to FIG. 1, the card C has a notched hypotenuse c3 for preventing erroneous mounting at one corner on the rear edge side. On the other hand, referring to FIGS. 2 to 4, the adapter tray 5 has the oblique wall 5 c at the corner on the rear edge side of the third recess 51. In a state where the adapter tray 5 is connected to the tray 1, the oblique side wall 5c is engaged with the notched oblique side c3, and the orientation of the card C can be specified (see FIG. 1).

  Referring to FIG. 4, when the adapter tray 5 is connected to the tray 1, the bottom surface of the first recess 11 and the bottom surface of the third recess 51 are formed flat, and the card C can be placed in these communicating recesses. (See FIG. 1).

  2 to 4, the adapter tray 5 has a notch 52 for lifting the card C placed in the recess where the first recess 11 and the third recess 51 communicate with each other on the rear edge side. Is formed. Further, the adapter tray 5 has a grip portion 53 for easily pulling out the tray 1 from the housing 2. As a substance, the grip portion 53 is a groove formed in a corner portion of the adapter tray 5.

  Next, the configuration of the connector 10 according to the embodiment will be described. FIG. 6 is a perspective view of the card connector according to the embodiment, and the card connector is viewed from the back side. FIG. 7 is a perspective view of the card connector according to the embodiment, and the card connector is viewed from the right side.

  FIG. 8 is a rear view of the card connector according to the embodiment. FIG. 9 is a perspective view of the card connector according to the embodiment, in which the tray and the cover are opened.

  2 to 8, the housing 2 is provided with a pair of opposing side walls 2 a and 2 b adjacent to the pair of side walls 1 a and 1 b provided on the tray 1. These side walls 2a and 2b can guide a pair of side surface portions 31a and 31b provided on the cover plate 3 (see FIG. 8). A thin rectangular parallelepiped space surrounded by the side walls 2a and 2b and the bottom wall 2c is defined as a second recess 21 in which the tray 1 can advance and retreat.

  2 to 8, the housing 2 has a pair of rotating shafts 21 a and 21 b at the other end. These rotation shafts 21 a and 21 b protrude so as to face the inside of the second recess 21.

  On the other hand, referring to FIG. 2 or FIG. 4, the tray 1 has a pair of cut arc grooves 11g and 11h on both wings at the other end. As shown in FIG. 2, when the tray 1 is moved in the insertion direction of the card C, the pair of arc grooves 11g and 11h can be fitted to the pair of rotating shafts 21a and 21b. The tray 1 can be pivotally connected to the housing 2.

  Referring to FIG. 2 or FIG. 8, the cover plate 3 has a main surface portion 30 and a pair of side surface portions 31a and 31b. The main surface portion 30 is disposed so as to face the bottom surface of the second recess 21 of the housing 2. In the pair of side surface portions 31a and 31b, both wings of the main surface portion 30 are refracted substantially at a right angle. The pair of side surface portions 31 a and 31 b can slide on both wings of the tray 1.

  Referring to FIG. 8, the pair of side surface portions 31a and 31b have a pair of holding pieces 31c and 31d that are refracted inward. These holding pieces 31 c and 31 d hold both wings of the tray 1 from the bottom surface side of the tray 1.

  Referring to FIG. 5, the housing 2 is provided with a pair of spaced locking grooves 21e and 21e on the side wall 2a. The housing 2 is provided with a pair of spaced apart locking grooves 21f and 21f on the side wall 2b. These locking grooves 21e and 21f are notched in a bowl shape (L shape).

  On the other hand, referring to FIG. 2, the cover plate 3 is provided with a pair of spaced locking pieces 31e and 31e on the side surface portion 31a. Further, the cover plate 3 is provided with a pair of spaced locking pieces 31f and 31f on the side surface portion 31b. These locking pieces 31e and 31f are refracted outward from the pair of side surface portions 31a and 31b. The pair of locking pieces 31e and 31f can be locked in the pair of locking grooves 21e and 21f (see FIG. 3 or FIG. 6).

  Referring to FIG. 7, when cover plate 3 is moved in the insertion direction of card C relative to tray 1, the engagement between the pair of locking grooves 21e and 21f and the pair of locking pieces 31e and 31f is released. The tray 1 can be opened together with the cover plate 3 with respect to the housing 2 (see FIG. 9).

  On the other hand, when the cover plate 3 is moved with respect to the housing 2 in the direction opposite to the insertion direction of the card C from the state in which the tray 1 is closed together with the cover plate 3, the pair of locking grooves 21e and 21f are moved. The tray 1 can be locked (locked) to the housing 2 by engaging the pair of locking pieces 31e and 31f (see FIG. 3 or FIG. 6).

[Operation of card connector]
Next, the operation and effect of the connector 10 will be described while explaining first to third examples of the connector 10 according to the embodiment.

(First embodiment)
FIG. 10 is a perspective view showing a first example of the card connector according to the embodiment, and is a state diagram in which a manual-type card connector is incorporated on the back side of the mobile phone. FIG. 11 is a perspective view showing a first example of the card connector according to the embodiment, wherein the card is ejected from the state shown in FIG.

  Referring to FIGS. 10 and 11, the connector 10 according to the first embodiment is arranged so that the card C slides on the bottom surface 91 a of the recess 91 provided in the mobile phone 9. The cellular phone 9 provided with the connector 10 according to the first embodiment removes a back cover and a battery (not shown) from the cellular phone 9, contacts the other surface (front surface) c2 of the card C with the fingertip, and moves to the concave portion 91 side. Thus, the card C can be taken out.

  2 to 5, the connector 10 according to the first embodiment includes a tray 1, a housing 2 having a plurality of contacts 41 and 42, and a cover plate 3. Can be used as

  Referring to FIGS. 10 and 11, the connector 10 according to the first embodiment is incorporated on the back side of the mobile phone 9 so that the tray 1 does not move relative to the housing 2. In the state shown in FIG. 10, when a battery (not shown) is mounted in the recess 91, the card C is restricted from popping out.

(Second embodiment)
FIG. 12 is a perspective view showing a second example of the card connector according to the embodiment, and is a state diagram in which a tray-type card connector is incorporated on the back side of the mobile phone. FIG. 13 is a perspective view showing a second example of the card connector according to the embodiment, in which the card is ejected from the state shown in FIG.

  Referring to FIGS. 12 and 13, in the connector 10 according to the second embodiment, a part of the inner wall constituting the concave portion 92 provided in the mobile phone 9 is opened, and the tray 1 and the card C are placed in the accommodation chamber communicating with the opening. Most of it is housed. The battery is disposed in the recess 92 so that the end surface of the battery (not shown) abuts against the end surface of the adapter tray 5 so that the tray 1 and the adapter tray 5 are not discharged from the housing 2.

  Referring to FIGS. 12 and 13, the connector 10 according to the second embodiment removes a back cover and a battery (not shown) from the mobile phone 9, puts a fingertip on the grip 53 of the adapter tray 5, and connects the tray 1 and the adapter tray 5. The card C can be taken out by sliding (drawing) the card onto the bottom surface 92a of the recess 92.

  With reference to FIGS. 2 to 5, the connector 10 according to the second embodiment can move the tray 1 and the adapter tray 5 together by attaching the adapter tray 5 to the tray 1. Then, a tray-type card connector that can pull out the tray 1 by placing the fingertip on the grip 53 provided on the adapter tray 5 can be realized.

(Third embodiment)
FIG. 14 is a perspective view showing a third example of the card connector according to the embodiment, and is a state diagram in which an open / close type card connector is incorporated on the back side of the mobile phone. FIG. 15 is a perspective view showing a third example of the card connector according to the embodiment, in which the tray is opened together with the cover plate from the state shown in FIG.

  Referring to FIG. 14, the connector 10 according to the third embodiment is accommodated in a state in which a step 94 is formed in the bottom surface 93 a of the recess 93 provided in the mobile phone 9 and the cover plate 3 is closed in the step 94. ing. Then, a battery (not shown) is mounted in the recess 93 so as to cover the cover plate 3.

  Referring to FIG. 15, the connector 10 according to the third embodiment can take out the card C by removing a back cover and a battery (not shown) from the mobile phone 9 and opening the cover plate 3.

  1 to 9, in the connector 10 according to the third embodiment, when the tray 1 is moved in the insertion direction of the card C, the pair of arc grooves 11g and 11h are fitted to the pair of rotating shafts 21a and 21b. Thus, the tray 1 can be opened and closed with respect to the housing 2. That is, an open / close type card connector can be realized. The connector 10 according to the third embodiment preferably has the adapter tray 5 attached to the tray 1.

  As described above, the connector 10 according to the embodiment can be changed into a tray type card connector and a manual feed type card connector depending on the presence or absence of the adapter tray 5. In addition, the card connector can be shared regardless of the design (or specification) of the device, which can contribute to a reduction in manufacturing cost.

  The connector 10 according to the embodiment can be changed into three types of a manual feed type, a tray type, and an open / close type, and is rich in versatility or expandability. For example, the connector 10 according to the embodiment can share the card connector regardless of the design (or specification) of the mobile phone or the battery, and can contribute to the reduction of the manufacturing cost.

1 tray 2 housing 3 cover plate 5 adapter tray 10 connector (card connector)
11 1st recessed part 21 2nd recessed part 41 * 42 contact 53 holding part

Claims (1)

A flat tray having a first concave portion of a substantially rectangular shape in which a card is inserted and a portion for holding the card is shorter than the length of the card;
A flat housing having a second recess in which the tray can be advanced and retracted;
A cover plate covering the second recess of the housing;
A plurality of contacts arranged in the housing and electrically connected to connection terminals arranged on one side of the card;
The tray is detachably connectable to one end of the tray with an adapter tray having a gripping portion for easily pulling out the tray .
The housing is
A pair of locking grooves provided on both wings and notched in a hook shape;
A pair of pivot shafts provided at the other end and projecting so as to face the inside of the second recess,
When the tray moves in the insertion direction of the card, a pair of notched arc grooves that engage with the pair of pivot shafts and pivotally connect to the tray are formed on both wings at the other end. Have
The cover plate is
A main surface portion facing the bottom surface of the second recess,
A pair of side portions slidable on both side surfaces of the tray by refracting both wings of the main surface portion;
On these sides,
A pair of holding pieces that are refracted inward from each other and hold both wings of the tray from the bottom side of the tray; and
A card connector provided with a pair of locking pieces that are bent outward and can be locked in the pair of locking grooves .

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