JP2007323944A - Wrong insertion preventing mechanism of ic card, and ic card connector equipped with it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wrong insertion preventing mechanism of an IC card capable of preventing wrong insertion of a plurality of IC cards into a card housing part, and of surely preventing a wrong insertion operation such as reverse insertion thereof; and an IC card connector equipped with it. <P>SOLUTION: A wrong insertion regulation member 22 constituting a part of a wrong insertion prevention mechanism arranged in a card housing part 14 respectively has shaft parts 22SL and 22SR at both ends, and has a connection part 22t connecting the shaft part 22SL to the shaft part 22SR at its center. The wrong insertion regulation member is structured such that a projecting part 22P having a predetermined height is formed in a part at the left end of the connection part 22t; in the case of a regular insertion hole operation of an MMC micro-card, the front end of the MMC micro-card does not interfere with it; and in the case of upside-down insertion or reverse insertion of the MMC micro-card, a corner at the front end interferes with it to regulate the wrong insertion. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an IC card erroneous insertion prevention mechanism and an IC card connector provided with the mechanism in a composite card accommodating portion.

  In an electronic device, generally, various functions are expanded by attaching an IC card such as an MMC (multi media card) card (trademark) or an SD (secure digital) card to each device via an IC card connector. ing.

  In addition, in the IC card connector, in order to mount and use a plurality of IC cards having different shapes in one electronic device, for example, as shown in Patent Document 1 and Patent Document 2, common to each IC card A card slot having a plurality of card slots and provided with a composite card housing portion in which each IC card is selectively attached and detached one by one is put into practical use.

  In an IC card connector having such a composite card accommodating portion, each card accommodating portion is formed in a hierarchy along the IC card attaching / detaching direction so that a part thereof overlaps each other. Each card accommodating portion is individually provided with a contact terminal group corresponding to the contact pad of each IC card.

  In such a configuration, a contact that is not used by the IC card at the time of insertion or avoidance of an erroneous insertion operation by a user into another card storage unit different from the regular card storage unit of the predetermined IC card. It is necessary to allow the IC card to be smoothly attached and detached while avoiding damage to the terminal group.

  As a necessary countermeasure, for example, as shown in Patent Documents 1 and 2, an erroneous insertion prevention mechanism including an erroneous insertion restricting member that restricts an erroneous insertion operation of a predetermined IC card into a card accommodating portion is commonly used. The one provided in the vicinity of the card slot has been proposed.

  The erroneous insertion prevention mechanism is, for example, an erroneous insertion operation of the second IC card having a relatively narrow width compared with the first IC card of the plurality of IC cards into the card housing portion for the first IC card. An erroneous insertion restricting member that restricts the insertion of the second IC card, a first state that restricts erroneous insertion of the second IC card (locked state), and a second IC card that allows insertion of the first IC card having a relatively wide width. It includes a lock / unlock mechanism that causes the erroneous insertion restricting member to assume the state (unlocked state) and a biasing member that biases the erroneous insertion restricting member in the direction opposite to the card insertion direction.

  The erroneous insertion restricting member extends substantially orthogonally to the direction in which each IC card is attached and laid across the end of the card accommodating portion on the card slot side. A narrow opening through which the second IC card can pass in the first state is formed below the erroneous insertion restricting member. Both end portions of the erroneous insertion restricting member are movably supported around the card accommodating portion, and can be selectively engaged with the engaging portion of the locking member in the above-described lock / unlock mechanism. It has a configuration. The engaging portion of the locking member can be elastically displaced.

  In such a configuration, the erroneous insertion restricting member is locked in the above-described first state when both end portions thereof are engaged with the engaging portions of the locking member, respectively. In other words, the operation of inserting the second IC card into the card accommodating portion for the first IC card is restricted by the erroneous insertion restricting member that is locked. As a result, the second IC card is mounted in a predetermined card accommodating portion through a narrow opening below the erroneous insertion restricting member.

  On the other hand, when the first IC card is mounted, the locking member is pressed by both sides of the IC card to be inserted immediately after the tip of the IC card passes through the card slot. Both end portions of the restricting member are disengaged from the engaging portions of the locking member.

  As a result, the erroneous insertion restricting member is changed from the locked state to the unlocked state, and the IC card is pushed against the urging force of the urging member. The first IC card passes over the erroneous insertion restricting member and is attached to the card accommodating portion for the first IC card.

  In an IC card connector, when the user inserts each IC card by mistake into the card accommodating portion from the end with the end side where no contact pad is provided facing in the advancing direction, the so-called reverse difference of the IC card May be performed.

  As a countermeasure in such a case, for example, as shown in Patent Document 3, there has been proposed one in which a protruding piece protruding inside is provided on a cover member that forms a part of a card housing portion. The position where the protruding piece is provided is, for example, a position where the protruding piece does not interfere with the end of the IC card when the IC card is inserted in the normal insertion direction, It is set at a position closer to the card slot side than the position of the contact of the contact terminal so that the protruding piece interferes with the end of the IC card. As a result, the end of the IC card that has been inserted incorrectly is brought into contact with the protruding piece, so that damage to the contact terminal due to the insertion of the IC card is avoided.

JP 2004-31416 A JP 2004-193111 A JP2003-3186A

  However, even if the above-described protruding piece is provided on the cover member as a measure for avoiding an erroneous insertion operation such as reverse insertion of the first IC card, the second IC card is inserted backward. Damage to contact terminals may not be avoided. As a countermeasure in such a case, when the ejection mechanism for the second IC card is provided, in the case of reverse insertion, the card receiving portion of the ejection member in the ejection mechanism is connected to the end portion of the second IC card. Although it may be possible to restrict the reverse insertion by forming the shape of the card receiving portion so that the corner portions do not engage, the shapes of the corner portions at both ends of the second IC card are similar to each other. If this is the case, it may be difficult to discriminate such a situation.

  In view of the above problems, the present invention is an IC card erroneous insertion prevention mechanism, and an IC card connector provided with the mechanism in a composite card housing portion, and a plurality of IC cards are inserted into the wrong card housing portion. It is an object of the present invention to provide an IC card erroneous insertion prevention mechanism that can avoid erroneous insertion operations such as reverse insertion, and an IC card connector including the same.

  In order to achieve the above-described object, the IC card erroneous insertion prevention mechanism according to the present invention extends in a direction transverse to the attaching / detaching direction of a plurality of IC cards having different shapes and is rotatably supported by the IC card accommodating portion. When the first IC card of the plurality of IC cards is attached to the IC card housing portion, the first IC card travels so that the end portion in the traveling direction of the first IC card faces one direction. Taking the state of the first position for guiding the end of the direction, when the second IC card of the plurality of IC cards is mounted in the IC card housing portion, it is rotated from the state of the first position, The misinsertion restricting member that takes the state of the second position that guides the end of the second IC card in the traveling direction toward the other direction, and biases the misinsertion restricting member in the discharging direction of the plurality of IC cards. Formed at both ends of biasing member and erroneous insertion restricting member Each having an elastically displaceable movable piece having an opening to be engaged with the engaging portion, and when the first IC card is mounted in the IC card housing portion, the first position of the erroneous insertion restricting member is determined. A pair of locking members that are selectively maintained, and the erroneous insertion restricting member is provided on the back side of the second IC card when the second IC card is reversely inserted or reversely inserted into the IC card housing portion. It has a projection part which controls insertion of insertion or reverse insertion.

  The IC card connector according to the present invention has a common card slot through which one of the first and second IC cards having different shapes can selectively pass, and the first and second IC cards. A plurality of types of contact terminal groups for electrically connecting the electrode portions of the IC card, and an IC card housing portion for housing the first or second IC card, and the IC card erroneous insertion preventing mechanism described above, It is configured with.

  As is apparent from the above description, according to the IC card erroneous insertion prevention mechanism and the IC card connector including the IC card erroneous insertion prevention mechanism according to the present invention, the erroneous insertion restricting member includes the second IC card in the IC card accommodating portion. When it is inserted backwards or reversely, it has a protrusion that restricts the insertion of reverse insertion or reverse insertion of the second IC card, so that the wrong insertion of a plurality of IC cards into the card accommodating portion is avoided. In addition, an erroneous insertion operation such as reverse insertion can be reliably avoided.

  FIG. 2 shows the appearance of an example of an IC card connector provided with an IC card erroneous insertion prevention mechanism according to the present invention.

  The IC card connector shown in FIG. 2 is arranged inside a predetermined electronic device such as a mobile phone, a PDA, or a camera.

  The IC card connector shown in FIG. 2 is, for example, a memory card as an IC card detachably accommodated in the card accommodating portion, for example, a micro SD card (trademark) SMC as a first IC card, or An electrode portion of any one of the MMC micro card (trademark) SMC (see FIG. 6) as the second IC card, and a connection terminal portion of a substrate for signal input / output disposed inside a predetermined electronic device, Are to be electrically connected.

  The shape dimensions of the micro SD card SMC are about 15 mm, 11 mm, and 1.0 mm in length, width, and thickness, respectively, and the shape dimensions of the MMC micro card MMC are 14 mm and 12 mm in length, width, and thickness, respectively. , About 1.1 mm.

  The IC card is not limited to the above-mentioned micro SD card or the like, but two types of MMC (multi media card) cards (trademark) having different widths, a memory card incorporating a flash memory or an ultra-small hard disk, SIM (Subscriber identity module) A card or the like may be selected.

  As shown in FIGS. 3 and 4, the IC card connector includes a base member 12 on which a plurality of contact terminals and the like for electrical connection to the accommodated micro SD card SMC or MMC micro card MMC are arranged, and a base A cover member 10 that forms a composite accommodating portion of each card in cooperation with the member 12 is configured.

  The cover member 10 having a gate-shaped cross-sectional shape is formed of a thin metal material. On one side surface of the cover member 10, as shown in FIG. 8, engagement holes 10e, 10f, 10g, and 10h to which claw portions of the base member 12 to be described later are respectively engaged correspond to the claw portions. Is formed. A plurality of engagement holes (not shown) are formed on the other side surface portion of the cover member 10 to engage with claws of the base member 12 to be described later.

  Therefore, the cover member 10 is fixed to the base member 12 by engaging the engagement holes 10e to 10h and the like with the claw portions of the base member 12, respectively.

  Further, as shown in FIG. 2, a pressing spring 10 fc that movably supports a cam lever 24 </ b> L in an ejection mechanism 24 described later is provided on one side surface side of the upper surface portion that connects both side surface portions of the cover member 10. ing. The base end portion of the holding spring 10 f having elasticity is formed integrally with the cover member 10. The holding spring 10f is formed, for example, by punching a part of the cover member 10 inward by press working. Accordingly, an opening 10b is formed around the portion of the cover member 10 corresponding to the pressing spring 10f.

  As shown in FIG. 3, the card accommodating portion 14 in the base member 12 is open at the top and the end opposite to the contact terminal fixing portion side described later. The card accommodating portion 14 accommodates the micro SD card SMC (see FIG. 12) in the upper portion thereof, and the MMC micro card MMC (see FIG. 6) is accommodated partially in the lower portion thereof. This is a complex card housing.

  Accordingly, when the base member 12 is covered with the cover member 10 described above, a common card through which one of the micro SD card SMC and the MMC micro card MMC is selectively passed to one end portion of the card accommodating portion 14. A slot will be formed.

  As shown in FIG. 4, the open end as the common card slot has a cross section having a shape like a T-shaped groove corresponding to the shapes of the inserted micro SD card SMC and MMC micro card MMC. is doing.

  The opening end portion such as the T-shaped groove has a substantially rectangular cross section, and is formed continuously with the first guide portion 12Sa through which the MMC microcard MMC passes and the upper portion of the first guide portion 12Sa. It is formed by the second guide portion 12Sb through which the SD card SMC passes.

  The lateral width of the second guide portion 12Sb is set to be smaller than the lateral width of the first guide portion 12Sa formed below the both sides of the inserted micro SD card SMC so as to form a predetermined gap. ing. Further, the lateral width of the first guide portion 12Sa is set so as to form a predetermined gap with respect to both side portions of the inserted MMC microcard MMC.

  As a result, the end portions of the micro SD card SMC and the MMC micro card MMC on the traveling direction side are guided and passed by the second guide portion 12Sb and the first guide portion 12Sa, respectively.

  Therefore, there is no possibility that the leading end portion of the MMC micro card MMC is erroneously drawn into the second guide portion 12Sb.

  The base member 12 is integrally molded with a molded resin material, for example. As shown in FIG. 6, the base member 12 includes side walls 12RW and 12LW that form both side portions of a card accommodating portion 14 in which a micro SD card SMC and an MMC micro card MMC are detachably accommodated, and an MMC micro card MMC. Contact terminals 18ai (i = 1 to 10) and contact terminal fixing wall portions 12FW to which contact terminals 16ai (i = 1 to 8) for micro SD card SMC are fixed.

  As shown in FIG. 3, claw portions 12e, 12f, 12g, and 12h are formed on the outer surface of the side wall 12LW corresponding to the engagement holes 10e to 10h of the cover member 10 described above. On the outer surface of the side wall 12RW, claw portions 12a, 12b, 12c, and 12d are formed at a plurality of positions corresponding to the engagement holes of the cover member 10 described above.

  For example, as shown in FIG. 6, the plurality of contact terminals 16ai are arranged in a portion close to the contact terminal fixing wall portion 12FW in the card accommodating portion 14 so as to be substantially parallel to the side walls 12RW and 12LW at a predetermined mutual interval. ing. Further, the plurality of contact terminals 18ai are arranged at a position close to the card slot in the card accommodating portion 14 so as to be substantially parallel to the side walls 12RW and 12LW at a predetermined mutual interval.

  The contact terminal 16ai is elastic and has a contact portion that is in contact with and electrically connected to a contact pad of the micro SD card SMC, and a solder that is soldered and fixed to an electrode portion of a wiring board (not shown). The auxiliary terminal portion includes a fixed portion that connects the contact portion and the soldered terminal portion to each other and is fixed to the base member 12. Although not shown in the drawings, a fixing portion of the contact terminal 16ai made of a thin metal material, for example, phosphor bronze for a spring, is formed in the contact terminal fixing wall portion 12FW in a groove formed in the contact terminal fixing wall portion 12FW. The micro SD card SMC is fixed to the base member 12 by being press-fitted from the side opposite to the insertion direction of the micro SD card SMC.

  The contact terminal 18ai is elastic and has a contact part that contacts and is electrically connected to a contact pad of the MMC micro card MMC, and a soldered terminal that is soldered and fixed to the electrode part of the wiring board. And a fixing portion that connects the contact portion and the soldered terminal portion to each other and is fixed to the base member 12. The fixing portion of the contact terminal 18ai is fixed to the base member 12 by being press-fitted from the insertion direction side of the MMC microcard MMC into a groove formed in the bottom portion of the card accommodating portion 14 (not shown).

  Above the contact terminal 18ai, a partition plate 30 for guiding the inserted micro SD card SMC toward the contact terminal 16ai is provided. Both ends of the partition plate 30 are bent and supported inside the side walls 12RW and 12LW. Thus, since the partition plate 30 is disposed so as to straddle the side walls 12RW and 12LW of the card accommodating portion 14, the bending rigidity of the base member 12 is also increased. On the surface of the partition plate 30, a plurality of dowels 30 a are formed with a predetermined interval. The dowel 30 a prevents the contact pad of the micro SD card SMC from coming into contact with the surface of the partition plate 30.

  Further, as shown in FIG. 3, the soldered terminal portions of the contact terminals 16ai and 18ai respectively protrude outward through the holes of the contact terminal fixing wall portion 12FW.

  As shown in FIG. 3, an eject mechanism 24 that holds the micro SD card SMC in the card storage unit 14 and selectively discharges the micro SD card SMC from the card storage unit 14 is provided in the inner portion of the side wall 12RW. It has been.

  The eject mechanism 24 is movably supported with respect to the base member 12, and is interposed between the eject member 24J that selectively holds the micro SD card SMC, and the contact terminal fixing wall portion 12FW of the base member 12 and the eject member 24J. The coil spring 24S for urging the eject member 24J in the ejection direction of the micro SD card SMC and the control for selectively holding or releasing the eject member 24J with respect to the base member 12 in accordance with the attaching / detaching operation of the micro SD card SMC. And an ejection member control unit to be performed.

  As shown in FIG. 12, the eject member 24J has an arm portion for holding the micro SD card SMC in a state where the end face of the micro SD card SMC is in contact with the base member 12, and is slidably supported. Yes. The substantially rectangular arm portion extends so as to protrude into the card accommodating portion 14 along a direction substantially orthogonal to the attaching / detaching direction of the micro SD card SMC. A convex portion 24P is formed on the upper surface portion of the arm portion so as to face the notch portion formed on the lower surface portion. The protrusion 24P is reinforced so that the strength of the arm portion does not decrease due to the notch.

  The eject member control unit includes a substantially heart-shaped cam element (heart cam) formed on the side wall 12RW side of the eject member 24J as shown in Japanese Patent Application Laid-Open No. 2004-31416, and a plurality of cam members formed around the heart cam. A lever guide groove formed of a stepped portion, a gate-shaped cam lever 24L whose one end is coupled to the hole of the side wall 12RW and the other end is slid along the lever guide groove, and the cover member 10 described above. The presser spring 10f (see FIG. 2) is included.

  The presser spring 10f urges the bent end of the cam lever 24L to slidably contact the guide surface of the lever guide groove. As a result, one end of the cam lever 24L is guided sequentially through each guide groove constituting the lever guide groove following the operation of the eject member 24J, and is temporarily held on the cam surface formed on the heart cam. As a result, the eject member 24J with the micro SD card SMC is held in the card accommodating portion 14. Then, when one end of the cam lever 24L is separated from the cam surface by a further pushing operation along the insertion direction of the micro SD card SMC, the eject member 24J with the micro SD card SMC is attached to the coil spring 24S. It is moved in the card ejection direction by the force.

  Further, as shown in FIG. 6, the eject member 24JS is integrally formed with an eject member 24JS that selectively holds the inserted MMC microcard MMC. The eject member 24JS is disposed substantially parallel to the eject member 24J at a position closer to the card slot side by a predetermined distance than the position of the eject member 24J. The eject member 24JS is disposed at a position slightly lower than the position of the eject member 24J. Thereby, the MMC micro card MMC can also be attached and detached by the above-described eject mechanism 24 by the same operation, and is moved in the card mounting direction or the card ejection direction.

  A detection switch 38 for detecting whether or not the micro SD card SMC is attached is provided in a portion of the side wall 12LW opposite to the ejection mechanism 24.

  Furthermore, a card misinsertion prevention mechanism is provided inside the side walls 12RW and 12LW in the card accommodating portion 14. As shown in FIG. 12, the erroneous card insertion prevention mechanism regulates erroneous intrusion of the MMC micro card MMC into the contact terminal 18ai side by abutting the end of the inserted micro SD card SMC in the traveling direction. At the same time, an erroneous insertion restricting member 22 that guides the micro SD card SMC to a predetermined card accommodating portion in which the contact terminals 16ai are disposed, and a pair of lock members 28R that make the erroneous insertion restricting member 22 locked or unlocked. , 28L (see FIGS. 15 (A) to 15 (C)), and a pair of torsion coil springs 32 that bias the erroneous insertion restricting member 22 in one direction.

  The erroneous insertion restricting member 22 formed like a crank has shaft portions 22SL and 22SR at both ends as shown in FIG. 1 and FIG. 5, and connects the shaft portion 22SL and the shaft portion 22SR. A connecting portion 22T is provided at the center.

  The cylindrical shaft portions 22SL and 22SR are rotatably supported by bearing portions formed in the card housing portion 14 of the base member 12, respectively. Further, the movement of the shaft portions 22SL and 22SR in the radial direction is restricted by a torsion coil spring 32 to be described later being fixed to the base member 12, as shown in FIG. A torsion coil spring 32 is wound around the outer periphery of each of the shaft portions 22SL and 22SR. One end of each torsion coil spring 32 is locked to the end portion of the erroneous insertion restricting member 22, and the other end of each torsion coil spring 32 is locked to the side wall of the base member 12.

  Accordingly, the erroneous insertion restricting member 22 is biased in the direction opposite to the direction indicated by the arrow shown in FIG. 1, that is, in the clockwise direction in FIG. 1 about the shaft portions 22SL and 22SR.

  The connecting portion 22T has a recess 22a that guides and guides the leading end of the micro SD card SMC in the traveling direction. A contact surface 22t with which the end of the inserted micro SD card SMC or MMC micro card MMC abuts is provided at one end in the longitudinal direction on the periphery forming the recess 22a. 1 and 5, a protrusion 22P having a predetermined height is formed on a part of the left end of the contact surface 22t.

  As will be described later, the protruding portion 22P regulates an erroneous reverse insertion operation or reverse insertion operation of the MMC microcard MMC. When the protrusion 22P is rotated about 90 ° in the clockwise direction in FIG. 1, as shown in FIG. 8, the tip of the protrusion 22P passes through the reverse operation or the reverse operation as shown in FIG. The height is set so as to interfere with the end of the MMC micro card MMC. In addition, as shown in FIG. 6, the position of the protrusion 22P is a position where the tip of the MMC microcard MMC does not interfere and can pass through the side in the case of a normal insertion operation of the MMC microcard MMC. On the other hand, at the time of reverse insertion operation or reverse insertion operation of the MMC micro card MMC, the corner of the tip of the MMC micro card MMC is set at a position where it interferes.

  At both ends of the connecting portion 22T to which the shaft portions 22SL and 22SR are respectively connected, cutout portions 22N to be locked to the peripheral portions of the movable pieces 28Rm and 28Lm opening portions 28H of the lock members 28R and 28L described later are formed. Has been. The cutout portion 22N opens to the end surface side facing the contact surface 22t in the connecting portion 22T.

  Therefore, hook-shaped engaging portions 22ER and 22EL that are engaged with the peripheral portions of the opening portions 28H of the movable pieces 28Rm and 28Lm are formed at both ends of the connecting portion 22T, respectively.

  Since the pair of lock members 28R and 28L have the same structure, the lock member 28R will be described, and the description of the lock member 28L will be omitted. Each of the lock members 28R and 28L is disposed in a groove 12G formed on the outer surface of the bottom surface portion of the base member 12, as shown in FIG. Each groove 12G is formed on both sides of the arrangement of slits 12Si (i = 1 to 10) formed corresponding to the contact terminals 18ai and directly below the side walls 12RW and 12LW.

  As shown in an enlarged view in FIG. 15C, the lock member 28R is formed integrally with a fixed piece 28Rf that is press-fitted into a groove 12g that is linearly formed inside the groove 12G, and one end of the fixed piece 28Rf. And a movable piece 28Rm.

  In the portion of the movable piece 28Rm that is connected to one end of the fixed piece 28Rf, an elastically displaceable bending portion is formed so as to protrude through a notch 12ga to a portion through which the side portion of the micro SD card SMC passes. The notch 12ga is formed so as to allow the inside of the groove 12G and the inside of the card storage portion 14 to communicate with each other. The mutual distance between the curved portion of the lock member 28R and the curved portion of the lock member 28L opposite to the curved portion is slightly larger than the lateral width of the micro SD card SMC, and smaller than the lateral width of the MMC micro card MMC. The dimensions are as follows.

  At one end of the movable piece 28Rm, a rectangular opening 28H into which the engaging portion 22ER of the erroneous insertion restricting member 22 is inserted is formed. A predetermined gap is formed between the peripheral edge of the opening 28H and the outer peripheral portion of the engaging portion 22ER so that one end of the movable piece 28Rm can move.

  Accordingly, when the side portion of the MMC micro card MMC passes between the curved portion of the lock member 28R and the curved portion of the lock member 28L facing each other, each curved portion is pressed by both side portions of the MMC micro card MMC. Therefore, the opening 28H of the movable piece 28Rm is separated from the engaging portion 22ER of the erroneous insertion restricting member 22. Therefore, the lock members 28R and 28L are in an unlocked state so that the erroneous insertion restricting member 22 can be rotated.

  On the other hand, when the curved portion of the locking member 28R and the curved portion of the locking member 28L opposite to each other are pressed to a non-pressed state, for example, when the MMC microcard MMC is ejected from the card accommodating portion 14, it is movable. The piece 28Rm returns to the initial position described above by the restoring force of the curved portion, and the opening 28H is engaged with the engaging portion 22ER of the erroneous insertion restricting member 22 that is biased and rotated by the biasing force of the torsion coil spring 32. On the other hand, it is inserted again. Therefore, the lock members 28R and 28L again set the erroneous insertion restricting member 22 to the locked state as in the initial state.

  In such a configuration, when the SD micro card SMC is mounted at the regular position of the card housing portion 14, as shown in FIGS. 12 and 13, the tip of the inserted SD micro card SMC is guided by the card slot. 14 </ b> Sb and the curved portion of the lock member 28 </ b> L opposite to the curved portion of the lock member 28 </ b> R and pass through the recess 22 a of the connecting portion 22 </ b> T of the erroneous insertion restricting member 22 as shown in FIG. 14. Thus, the card is introduced into a portion of the card accommodating portion above the regular partition plate 30. At that time, it is held at a predetermined position by the above-described eject member 24J.

  On the other hand, when the SD micro card SMC is taken out from the card accommodating portion 14, the SD micro card SMC is further pushed in a state where it abuts against the eject member 24J, so that the eject member is biased by the biasing force of the coil spring 24S of the eject mechanism. The SD micro card SMC is moved in the discharge direction together with 24J.

  In addition, if the SD micro card SMC is inserted by mistake so that the end portion on which the contact pad is not formed is directed in the traveling direction, or as shown in FIG. 12 by a two-dot chain line. In addition, in the case of reverse insertion, the end of the SD micro card SMC abuts on the protruding piece 10S of the cover member 10 described above, so that the erroneous insertion operation is restricted.

  Further, for example, as shown in FIGS. 15A and 15B, first, the end in the advancing direction comes into contact with the abutting surface 22t of the erroneous insertion restricting member 22, and the end in the advancing direction. When the left side of the pressing member presses the curved portion of the locking member 28L, as described above, the movable piece 28Lm is separated from the engaging portion 22EL of the erroneous insertion restricting member 22, and the erroneous insertion restricting member 22 is in the unlocked state. Is done.

  Next, when the contact surface 22t of the erroneous insertion restricting member 22 in the unlocked state is further pressed against the urging force of the torsion coil spring 32 at the end in the traveling direction of the SD micro card SMC, the torsion coil spring The urging force of 32 and the restoring force of the movable piece 28Lm are balanced, and as shown in FIG. 16B, the end face of the engaging portion 22EL of the erroneous insertion restricting member 22 separated from the opening 28H is the movable piece 28Lm. It will be held in a state where it abuts against. At that time, the engaging portion 22ER of the erroneous insertion restricting member 22 is changed from the state indicated by the solid line in FIG. 9 to the state indicated by the two-dot chain line so that a part of the notch 22N is fitted to the periphery of the opening 28H. The shaft 22SR is rotated around the center axis. Accordingly, as shown in FIG. 15C, since the engaging portion 22ER is not unlocked, the erroneous insertion restricting member 22 prevents an erroneous insertion operation into the lower card accommodating portion in the SD micro card SMC. Will be.

  Subsequently, as shown in FIG. 16A, in the state in which the end portion in the advancing direction of the SD micro card SMC is in contact with the abutting surface 22t of the erroneous insertion restricting member 22, the right side of the end portion in the advancing direction When the side portion presses the curved portion of the lock member 28R, as described above, the engaging portion 22ER of the erroneous insertion restricting member 22 rotates so that a part of the cutout portion 22N is fitted to the periphery of the opening portion 28H. As shown in FIG. 16C, the engagement portion 22ER of the erroneous insertion restricting member 22 is kept locked with respect to the opening portion 28H of the lock member 28R and is not unlocked. . Therefore, the erroneous insertion restricting member 22 prevents the SD micro card SMC from being inserted.

  When the end of the SD micro card SMC in the traveling direction is separated from the contact surface 22t of the erroneous insertion restricting member 22 in the card discharge direction, the engaging portion 22EL of the erroneous insertion restricting member 22 is biased by the coil spring 32. Thus, the engagement portion 22EL returns to the locked state with respect to the opening portion 28H of the lock member 28L.

  When the micro MMC card MMC is mounted in the card accommodating portion 14, as shown in FIG. 6, the lock member 28L facing the curved portion of the lock member 28R by the tip of the micro MMC card MMC passing through the card slot. Will be pressed in a direction away from each other. As a result, the opening 28H of the movable piece 28Rm and the movable piece 28Lm are separated from the engaging portions 22ER and 22EL of the erroneous insertion restricting member 22, respectively. Therefore, the erroneous insertion restricting member 22 is unlocked.

  Next, the insertion end of the micro MMC card MMC is further inserted along the advancing direction so that the insertion error of the micro MMC card MMC is controlled in a state where the tip end of the micro MMC card MMC is in contact with the contact surface 22t of the erroneous insertion restriction member 22. By rotating the member 22 against the urging force of the torsion coil spring 32, as shown by a solid line in FIG. 6, the member 22 passes under the erroneous insertion restricting member 22 and the partition plate 30 and is predetermined by the eject member 24JS. Will be held in position.

  On the other hand, when the micro MMC card MMC is taken out from the card accommodating portion 14, the micro MMC card MMC is further pushed in, and the urging force of the coil spring 24S of the eject mechanism causes the micro MMC card MMC to be ejected together with the eject member 24JS. Moved to. At that time, the erroneous insertion restricting member 22 is rotated toward the card slot by the biasing force of the torsion coil spring 32, and the movable piece of the lock member 28L facing the opening 28H of the movable piece 28Rm of the lock member 28R. The opening 28H of Lm is returned to the position facing the engaging portions 22ER and 22EL by the restoring force and inserted. Thereby, the erroneous insertion restricting member 22 is returned to the initial locked state again.

  Further, as shown by a two-dot chain line in FIG. 6, when the micro MMC card MMC is mistakenly inserted, the tip of the micro MMC card MMC comes into contact with the protrusion 22 </ b> P of the misinsertion restricting member 22 rotated. As a result, an erroneous reverse insertion operation is restricted.

  Furthermore, as shown in FIG. 10 and FIG. 11, when the micro MMC card MMC is mistakenly inserted, the end of the micro MMC card MMC comes into contact with the protruding portion 22P of the erroneous insertion restricting member 22 rotated. As a result, an erroneous reverse insertion operation is restricted.

It is a perspective view which shows the incorrect insertion control member used for an example of the connector for IC cards provided with the IC card incorrect insertion prevention mechanism which concerns on this invention. It is a top view which shows the external appearance of an example of the connector for IC cards provided with the IC card incorrect insertion prevention mechanism which concerns on this invention. It is a top view which shows the state which removed the cover member in the example shown by FIG. It is a front view in the example shown by FIG. It is a perspective view which shows the incorrect insertion control member used for an example of the connector for IC cards provided with the IC card incorrect insertion prevention mechanism which concerns on this invention. It is a top view with which operation | movement description in the example shown by FIG. 2 is provided. It is a front view with which operation | movement description in the example shown by FIG. 2 is provided. It is a perspective view with which operation | movement description in the example shown by FIG. 2 is provided. FIG. 3 is a diagram for explaining an operation in the example shown in FIG. 2. It is a top view with which operation | movement description in the example shown by FIG. 2 is provided. It is a perspective view which shows the state shown by FIG. It is a top view with which operation | movement description in the example shown by FIG. 2 is provided. It is a perspective view which shows the state shown by FIG. It is a front view which shows the state shown by FIG. (A) is a plan view for explaining the operation in the example shown in FIG. 2, and (B) and (C) are partially enlarged views in FIG. 15 (A), respectively. (A) is a plan view for explaining the operation in the example shown in FIG. 2, and (B) and (C) are partially enlarged views in FIG. 16 (A), respectively.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Cover member 10S Projection piece 14 Card accommodating part 16ai, 18ai Contact terminal 22 Incorrect insertion control member 22P Projection part 22a Depression 22t Contact surface 28R, 28L Locking member 32 Torsion coil spring SMC Micro SD card MMC MMC Micro card

Claims (3)

A plurality of IC cards having different shapes extend in a direction transverse to the attaching / detaching direction of the IC card and are rotatably supported by the IC card housing portion, and the first IC card of the plurality of IC cards is the IC card housing portion. The first IC card is in a first position that guides the end of the first IC card in the direction of travel so that the end of the first IC card faces in one direction, When a second IC card of a plurality of IC cards is mounted in the IC card housing portion, the second IC card is rotated from the state of the first position, and the end portion in the traveling direction of the second IC card is the other An erroneous insertion restricting member that takes the state of the second position to be guided in the direction;
A biasing member that biases the erroneous insertion restricting member in a discharging direction of the plurality of IC cards;
Each of the misinsertion restricting members has elastically displaceable movable pieces each having an opening engaged with an engaging portion formed at both ends, and the first IC card is mounted in the IC card accommodating portion. A pair of locking members that selectively maintain the first position of the erroneous insertion restricting member,
The erroneous insertion restricting member restricts insertion of reverse insertion or reverse insertion of the second IC card when the second IC card is reversely inserted or reversely inserted into the IC card housing portion. IC card misinsertion prevention mechanism, characterized in that it has a protruding part.   2. The IC card erroneous insertion prevention mechanism according to claim 1, wherein the cover member that covers the IC card housing part has a protrusion that restricts insertion of the first IC card into the reverse side or the reverse side. . One of the first and second IC cards having different shapes has a common card slot through which the IC card can selectively pass, and the electrode portions of the first and second IC cards are electrically connected An IC card accommodating portion that has a plurality of types of contact terminal groups to be connected, and accommodates the first or second IC card;
IC card misinsertion prevention mechanism according to claim 1,
IC card connector comprising:

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