JP2007287438A - Electronic card connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a card connector capable of protecting a card lock member against damage due to forcible card disconnection without lock capability deterioration in providing a lock member for locking a card in a mount position in a card connector with a push-push type ejector. <P>SOLUTION: This card connector locks a card 1 in a mount position by engaging a top engagement 81 in a lock member 80 using a cantilevered support metal spring with a notch 3 of the card 1. The top engagement 81 has a projection 82 in a hole 36 of a metal cover 30 covering the top surface of the card connector. When the projection 82 has been caught at the metal cover 30 by an attempt made to forcibly detach the card 1, it is submerged under the metal cover 30, so that the top engagement 81 is unlatched from the notch 3. The lock member 80 is mounted on a slide member 50 of the ejector, and the hole is formed in a long hole 36 so that the lock member 80 can slide integrally with the slide member 50. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a card connector for connecting a card such as a memory card to an electronic device such as a PC, a mobile phone, a digital camera, and a portable audio.

  Conventionally, in providing a lock member for locking (locking) a card attached to a card connector in the attachment position, the lock member is formed by a cantilevered leaf spring, and the lock member is formed at the tip of the lock member. By engaging a mountain-shaped engagement portion provided by bending the length along the length direction with the notch of the card at the mounting position, the tip of the engagement portion is brought into contact with a support surface provided on the housing. The engagement portion is restricted from being removed from the notch, and the card is locked at the mounting position. When the card is forcibly removed in the locked state, a support surface provided with the engagement portion on the housing is provided. There has been a technique for disengaging the notch and preventing the lock member from being broken by deforming the fulcrum flatly (see, for example, Patent Documents 1 and 2).

The lock member is attached to a slide member constituting a push / push type eject member that is movably disposed in the card insertion / removal direction in the card connector housing, and the card is engaged with the slide member by the lock member. There has been a technique for ejecting (ejecting) from the mounting position and preventing the card from jumping out (see, for example, Patent Documents 1 and 2).
JP 2002-270299 A JP 2004-95418 A

  In the above prior art, when the card is forcibly removed in the locked state, the engaging portion is deformed flat in order to disengage the engagement with the notch. Due to the elastic deterioration, the engaging portion does not return to the original mountain shape and plastically deforms, and the engagement between the engaging portion and the notch becomes unsatisfactory or does not occur, and there is a problem that the lock function is deteriorated or lost. It was.

  Further, in the above prior art in which the lock member is attached to the slide member constituting the push / push type eject mechanism, the tip of the engagement portion of the lock member abuts on the support surface provided in the housing when the card is mounted, and the engagement It is possible to restrict the part from coming out of the notch, but in other states, the engaging part of the lock member comes off the support surface provided on the housing, and the engaging part engages with the notch only by the elastic force of the lock member. Therefore, when the card is ejected, there is a problem that the engaging portion is easily detached from the notch and the card is easily ejected from the card connector.

  The problem to be solved by the present invention is to provide a lock member that locks (locks) the card in the mounting position, and when the card is forcibly removed, the lock function is not lowered or lost without causing the lock function to be lost. An object of the present invention is to provide a card connector that can prevent damage to members.

  It is another object of the present invention to provide a card connector that can prevent a card from being ejected by the lock member even when the lock member is attached to a slide member constituting a push / push type eject mechanism.

  In the card connector according to the present invention, the lock member using the metal plate spring supported in a cantilever has a mountain-shaped engagement portion obtained by bending the distal end portion of the lock member along the length direction. Is a card connector that fits into the notch of the card in the mounting position and locks the card in the mounting position, and the engaging portion has a protrusion protruding into the hole of the metal cover that covers the upper surface of the card connector The protrusion is caught on the metal cover by forcibly removing the card, and then, the protrusion enters the lower side of the metal cover, so that the engaging portion is disengaged from the notch of the card.

  In the card connector of the present invention having the above configuration, in the card mounted state, the protrusion of the engagement portion of the lock member protrudes into the hole of the metal cover, so that the engagement portion is prevented from coming off from the notch. The card can be locked (locked) at the mounting position by the lock member. When the card is forcibly removed in the locked state, after hooking the protrusion on the metal cover, it is submerged in the lower side of the metal cover, so that the engaging portion is removed from the notch without being deformed, Breakage of the lock member can be prevented. Further, even if the height of the mountain-shaped engaging portion is sufficiently high within the depth of the notch, if the card is forcibly removed, the engaging portion is removed from the notch without deforming the lock member, Therefore, it is possible to ensure a large amount of engagement between the engaging portion and the notch without considering the case where the card is forcibly removed.

  In the card connector of the present invention, when the protrusion has a structure having a pressing surface for pressing the protrusion downward to the contact portion with the metal cover, when the card is forcibly removed in the locked state, the protrusion After being hooked on the metal cover, the protrusion is pressed downward by the pressing surface to be buried under the metal cover, so that the engagement of the protrusion is prevented while preventing deformation of the contact portion of the metal cover. The part can be reliably removed from the notch, and damage to the lock member can be reliably prevented.

  In the card connector of the present invention, a box-shaped housing having an insulating body in which a plurality of contacts are arranged side by side and the metal cover that is attached to the upper surface of the body and having a card insertion opening opened on the front side surface; A slide member movable in a card insertion / removal direction that is pushed rearward by a card inserted into the housing through the card insertion port, a biasing member that constantly biases the slide member forward, A lock function that holds the slide member in the card mounting position against the biasing member by a first pushing operation of the slide member by a card and a lock function that releases the lock by a second pushing operation of the slide member by the card And a cam mechanism having a lock release function. The lock member is a slant of the eject mechanism. The metal cover hole is formed in a long hole, and when the lock member moves integrally with the slide member of the eject mechanism, a push / push type eject mechanism is provided. In the card connector, since the protrusion on the engagement portion of the lock member always protrudes into the long hole of the metal cover, the engagement portion is prevented from being removed from the notch, and the card is locked in the mounting position by the lock member ( Locking). When the card is forcibly removed in the locked state, after hooking the protrusion on the metal cover, it is submerged in the lower side of the metal cover, so that the engaging portion is removed from the notch without being deformed, Breakage of the lock member can be prevented. Even if the height of the mountain-shaped engaging portion is sufficiently high within the depth of the notch, when the card is forcibly removed, the engaging portion is removed from the notch without deforming the lock member. Therefore, it is possible to ensure a large amount of engagement between the engaging portion and the notch without considering the case where the card is forcibly removed. Further, even when the card is ejected, the engaging portion of the lock member can be prevented from being removed from the notch in the same manner as when the card is mounted, and the amount of engagement between the engaging portion and the notch is large. The engaging portion can be engaged and held in the notch.

  In the card connector according to the present invention, the elongated hole of the metal cover passes through the portion where the protrusion of the lock member is located when the card is mounted, and the protrusion of the lock member passes immediately before the slide member returns to the initial position when the card is ejected. In the card connector with a push / push type eject mechanism, the protrusion of the lock member is inserted into the narrow part of the long hole of the metal cover when the card is mounted. When the card is ejected, just before the slide member returns to the initial position, the protrusion of the lock member passes through the narrow part of the long hole of the metal cover, so that the card member is inserted and the card is ejected. The function of restricting the engagement portion of the lock member from coming off from the notch can be enhanced, and the engagement portion and the notch Since hunting amount is large, it can be reliably engaged with and held by the notch of the engagement portion at the time when the card attachment state and the card ejector.

  As described above, according to the card connector of the present invention, when the card is forcibly removed in providing the lock member for locking (locking) the card in the mounting position, the engaging portion of the lock member is deformed. Therefore, the lock member can be prevented from being damaged and the lock function can be improved without causing deterioration or disappearance of the lock function.

  In addition, even when the lock member is attached to a slide member constituting a push / push type eject mechanism, the engaging portion of the lock member can be engaged and held in the notch of the card at the time of card ejection. The card can be prevented from popping out by the lock member at the time of ejection.

  In addition, since the card connector of the present invention obtains the above-described effects without adding parts, the performance of the card connector can be improved without increasing the manufacturing cost of the card connector, and the locking member and the metal cover can be improved. Since there is no additional mold bending process, the mold manufacturing cost does not increase.

  Embodiments of a card connector according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is an external perspective view of a lock member provided in the present embodiment, FIG. 2 is an external perspective view when no card is inserted in the present embodiment, and FIG. 3 is a card not inserted in the present embodiment. FIG. 4 is a plan view showing the internal structure in the initial stage of insertion when a card is inserted into the present embodiment, and FIG. 5 is the most pushed position when the card is inserted into the present embodiment. FIG. 6 is a plan view showing the internal structure in a state where the card is inserted and mounted in the present embodiment, and FIGS. 7 to 11 are protrusions of the lock member and metal. The top view which shows the relationship with the hole of a cover, FIG. 12 (A)-(E) are the surface views, side views, and back views which show the card | curd used for this Embodiment.

  In this embodiment, as shown in FIGS. 2 to 6, a box shape (cuboid shape) in which a card insertion slot 10 for inserting a card 1 as shown in FIGS. The housing 11 is provided. The housing 11 includes a resin-made (insulating) body 20 and a (conductive) metal cover 30 made of a metal plate attached to the body 20 from above. The right side surface portion, the rear side surface portion, and the front side surface portion on the right side of the card insertion slot 10 are formed by a bottom portion 21, a right side wall portion 22, a rear side wall portion 23, and a front side wall portion 24 that are integrally formed with the body 20. 11 is formed of a top plate portion 31, a right side cover portion 32, and a left side plate portion 33 integrally formed with the metal cover 30. The metal cover 30 is provided with a plurality of solder legs 34 for a printed wiring board (not shown).

  As shown in FIGS. 12A to 12E, the outer shape of the card 1 is a substantially rectangular flat plate, and a corner on one end of the card 1 is dropped to prevent erroneous insertion. A notch 2 is provided, and a locking notch 3 is provided on the side surface of the card 1 in front of the notch 2 for preventing erroneous insertion. A plurality of (eight) connection terminals 4 are arranged in parallel on the back side of the front end of the card 1. The card 1 is a memory card known as a micro SD card (registered trademark) or transflash (registered trademark).

  Further, in the present embodiment, as shown in FIGS. 3 and 4, a plurality of (eight) contacts 40 that are electrically connected to the connection terminals 4 of the card 1 are provided in parallel in the housing 11. ing. The contact 40 is formed of a thin plate spring formed by punching and bending a thin metal plate and having a side-view shape formed into a substantially “h” shape. The rear part of the contact 40 is fixed to the bottom part 21 of the body 20, and the front part protrudes on the bottom part 21 of the body 20 so as to be elastically displaceable up and down. The contact 40 using such a cantilever-supported leaf spring is provided with a leg 41 for soldering to a printed wiring board (not shown) at the rear end, and elastically contacts the connection terminal 3 of the card 1 at the front end. A mountain-shaped contact portion 42 is provided.

  Moreover, this Embodiment is arrange | positioned in the right side part in the housing 11, as shown in FIGS. 3-6, and the front-back direction (card insertion / extraction direction) with the card | curd 1 inserted in the housing 11 from the card insertion port 10 A resin-made (insulating) slide member 50 is provided. The slide member 50 has a bottom surface slidably supported on the surface (upper surface) of the bottom portion 21 of the body 20, a right side surface supported slidably on the inner surface of the right side wall portion 22 of the body 20, and an upper surface covered with a metal cover. It is supported slidably on the inner surface of the top plate portion 31 of 30, and the movement in the left-right direction is restricted and only the movement in the front-rear direction is allowed. On the left side surface of the slide member 50 facing the left side plate portion 33 of the metal cover 30 is provided an overhang portion 51 that fits into the notch 2 for preventing erroneous insertion of the card 1, and the back of the overhang portion 51. A card receiving portion 52 that protrudes vertically from the end portion (rear end portion of the slide member 50) toward the left side and comes into contact with the front end surface of the card 1 is provided.

  The slide member 50 constitutes a push / push type eject mechanism with an urging member and a cam mechanism which will be described later. The biasing member is a compression coil spring 60 provided between the slide member 50 and the rear side wall portion 23 of the body 20, and the slide member 50 is always biased forward (in the card eject direction) by the compression coil spring 60. ing. The cam mechanism includes a heart-shaped cam groove 70 provided on the upper surface of the slide member 50 and a cam pin 71 made of an elongated metal rod whose both ends are bent at right angles in one direction. The bent portion is rotatably supported by the right side wall portion 22 of the body 20, and the other end side bent portion of the cam pin 71 is slidably fitted into the cam groove 70.

  When the card 1 is not inserted into the housing 11, the eject mechanism is in the initial position where the slide member 50 is the front movement end position by the biasing force of the compression coil spring 60, as shown in FIG. The other end side bent portion is in an initial state where the one end side starting portion 70 a of the cam groove 70 is located.

  The cam pin 71 of the eject mechanism is always urged downward at the tip of a cantilevered plate spring 35 (see FIG. 2) formed by cutting and raising a part of the top plate portion 31 of the metal cover 30. The bent portion of one end of the cam pin 71 is inserted and held in a bearing hole provided in the right side wall portion 22 of the body 20, and the tip of the bent portion of the other end side of the cam pin 71 is formed in the cam groove 70 of the slide member 50. It is slidably pressed against the bottom.

  Further, the present embodiment includes a lock member 80 using a metal plate spring as shown in FIG. The lock member 80 has an engaging portion 81 that fits into the notch 3 for locking the card 1 at one end portion of the locking member 80, and the engaging portion 81 has a length of one end portion of the locking member 80. The lock member 80 is integrally formed by bending in a mountain shape along the direction. The engaging portion 81 is formed in a mountain shape having a height substantially the same as the depth of the notch 3 so as to secure a large amount of engagement between the engaging portion 81 and the notch 3 as much as possible. The engaging portion 81 has a protrusion 82 that protrudes into a hole, which will be described later, provided in the top plate portion 31 of the metal cover 30, and the protrusion 82 is a proximal end side of the mountain-shaped engaging portion 81. The upper edge of the portion is partly raised, so that it is integrally formed with the engaging portion 81. Further, the protrusion 82 has a pressing surface 83 for pressing the protrusion 82 downward by rounding the corner on the outer side of the upper end of the protrusion 82 with or without rounding.

  As shown in FIGS. 3 to 6, the lock member 80 is fixedly attached so that the end of the lock member 80 opposite to the engagement portion 81 is embedded in the slide member 50. The slide 81 so that 81 extends slightly into the housing 11 in the same direction as the overhanging portion 51 slightly before the overhanging portion 51, and the engaging portion 81 can be displaced in the left-right direction (the engagement / disengagement direction with respect to the notch 3). The member 50 is cantilevered and moved integrally with the slide member 50.

  Further, the protrusion 82 of the lock member 80 protrudes into the long hole 36 formed in the top plate portion 31 of the metal cover 30 as shown in FIGS. 2 and 7 to 11. The long hole 36 is formed as a long hole that is long in the front-rear direction so that the lock member 80 can move integrally with the slide member 50, and the long hole 36 is integrated with the slide member 50. It is established in the movement range of the projection 82 when moving to.

  Further, the inner edge (left side edge) of the long hole 36 is linear in the front-rear direction along the card insertion / removal direction immediately inside the protrusion 82 in the engaged state in which the engaging portion 81 is completely fitted into the notch 3. On the other hand, the outer edge (right side edge) of the long hole 36 is uneven so that the hole width of the long hole 36 varies along the length direction. It is formed to extend in the front-rear direction along the card insertion / removal direction.

  Specifically, as shown in FIGS. 3, 4, and 7, the front end portion 36 a of the long hole 36 in which the protrusion 82 is located when the slide member 50 is in the initial position, and as shown in FIGS. 5 and 8. In addition, the long hole 36 has the widest hole width with the rear end portion 36b of the long hole 36 where the projection 82 is located when the slide member 50 is pushed to the most pushed position, and FIGS. As shown, the portion 36c immediately before the wide rear end portion 36b of the elongated hole 36 where the projection 82 is located when the slide member 50 is in the card mounting position, and the projection 82 immediately before the slide member 50 returns to the initial position. With the portion 36d immediately before the wide front end portion 36a of the long hole 36 passing therethrough, the hole width of the long hole 36 is the narrowest, and the front width from the portion immediately before the narrow rear portion 36c of the long hole 36 In the middle part 36e immediately after the narrow part 36d, the long hole The hole width gradually becomes wider as it goes to the rear side (it becomes gradually narrower as it goes to the front side), and the hole width of the rear end portion in the intermediate portion 36e of the long hole 36 is the front end wide portion 36a and the rear end wide portion. 36b, and the outer end of the long hole 36 so that the hole width of the front end portion in the middle portion 36e of the long hole 36 is the same as that of the narrow rear portion 36c and the narrow front portion 36d. The edges are uneven.

  Then, the hole widths of the front end wide portion 36a, the rear end wide portion 36b, and the intermediate portion 36e at the rear end portion of the long hole 36 are disengaged from the notch 3 and ride on the side surface of the card 1. In the state, the outer edge (right edge) of the long hole 36 is positioned just outside (right side) of the protrusion 82, and the protrusion 82 is formed in such a size as not to contact the outer edge (right edge) of the long hole 36. In the engaged state in which the hole widths of the rear narrow part 36c, the front narrow part 36d, and the intermediate part 36e front end part of the long hole 36 are completely fitted into the notch 3, The outer edge (right side edge) of the long hole 36 is positioned just outside (right side) of the protrusion 82, and the rear narrow portion 36 c, front narrow portion 36 d, and intermediate portion 36 e front end are projected 82. Can gradually pass through without contacting the outer edge (right edge) of the long hole 36, and the engaging portion 81 can be removed from the notch 3. The pressing surface 83 at the upper outer edge of the protrusion 82 is formed in such a size that the outer surface of the elongated hole 36 comes into contact with and catches (interfers with) the top plate portion 31 of the metal cover 30 when it is about to occur. .

  Further, in the present embodiment, as shown in FIGS. 3 to 6, the present embodiment is arranged at the rear end portion in the housing 11, and the card 1 inserted into the housing 11 from the card insertion slot 10. A pair of first and second movable contact pieces 90 and 91 for constituting a card detection switch for detection is provided. Each movable contact piece 90, 91 is made of a conductive thin metal plate, and the right end portion of the first movable contact piece 90 is fixedly supported by press-fitting or insert molding laterally to the rear end right end portion of the body 20, and the other end portion is fixed. The left end of the rear end of the card insertion area in the housing 11 is supported obliquely so as to be elastically displaceable in the card insertion / removal direction, and the right end of the second movable contact piece 91 is parallel to the front side of the first movable contact piece 90. The other end of the body 20 is fixed to and supported by the right end of the rear end of the body 20 by press-fitting or insert molding, and the other end is in front of the first movable contact piece 90 and the card insertion direction in the left end of the rear end in the card insertion area in the housing 11. The first movable contact piece 90 and the second movable contact piece 91 are opposed to each other so that they can be elastically displaced. Leg portions 92 and 93 for soldering to a printed wiring board (not shown) are provided at fixed ends of the first and second movable contact pieces 90 and 91.

  The card connector with the push / push type ejection mechanism configured as described above is mounted on the surface of a printed wiring board built in an electronic device housing such as a cellular phone, and the metal cover 30 is configured as described above. The leg portions 34, the leg portions 41 of the contacts 40, and the leg portions 92, 93 of the first and second movable contact pieces 90, 91 are soldered and fixed to the wiring pattern of the printed wiring board, and electrically Used in a connected state.

  Next, the operation of the present embodiment will be described. When the back side of the card 1 is faced down and the card 1 is normally inserted into the housing 11 through the card insertion slot 10 from the narrow end portion of the card 1, the card 1 is used for preventing erroneous insertion of the card 1 as shown in FIG. The projecting portion 51 of the slide member 50 is fitted into the notch 2 of the housing 11 while being fitted between the slide member 50 in the housing 11 and the left side plate portion 33 of the metal cover 30, and the tip surface of the card 1 is the card of the slide member 50. It contacts the receiving part 52.

  When the notch 2 for preventing erroneous insertion of the card 1 passes through the engaging portion 81 of the lock member 80 in the initial stage of the insertion, the engaging portion 81 of the locking member 80 has a front end side surface of the notch 2 for preventing erroneous insertion. The slide member 50 is received on the side surface portion between the notch 2 for preventing erroneous insertion and the notch 3 for locking while being slidably in contact with the outer side of the lock member 80. At substantially the same time as 52 receives the card 1 by contact with the front end surface of the card 1, the locking notch 3 faces the engaging portion 81 of the locking member 80, and the engaging portion 81 is the locking member 80. It is completely fitted into the notch 3 for locking with elastic return to the inside. As a result, the card 1 and the slide member 50 are engaged in the card insertion / extraction direction, and the card 1 is half-locked.

  At this time, the slide member 50 remains stopped at the initial position, and the protrusion 82 of the lock member 80 has the top of the metal cover 30 within the hole width in the wide front end portion 36a of the long hole 36 as shown in FIG. Without interfering with the plate portion 31, the engagement portion 81 is displaced in the left-right direction as the engagement portion 81 is displaced in the left-right direction, and the engagement portion 81 is completely fitted into the locking cutout 3. Is located at the left end of the wide front end portion 36a.

  When the card 1 is further inserted into the rear side of the housing 11 from the initial insertion state, the card 1 presses the receiving portion 52 of the slide member 50 to the rear side at the front end surface, and the slide member 50 is moved to the coil spring 60. The card 1 is pushed from the initial position to the rear side in the housing 11 against the urging force. Thereafter, the card 1 is pushed to the most pushed position, which is the movement end position in the card insertion direction where the rear end surface of the slide member 50 abuts the rear end of the body 20 (first pushing operation) (see FIG. 5). . Further, the card 1 presses the front end portion of the second movable contact piece 91 on the front side with the front end surface of the card 1 slightly before passing the card mounting position described later, and the front end of the second movable contact piece 91 The first and second movable contact pieces 90 and 91 are bent rearward in a state where the first and second movable contact pieces 90 are in contact with each other, and the card detection switch is turned on.

  At this time, the lock member 80 has the protrusion 82 of the lock member 80 in a state where the engaging portion 81 of the lock member 80 is completely fitted into the lock notch 3 by the elastic force of the lock member 80. 7 passes through the front narrow portion 36d, the intermediate portion 36e, and the rear narrow portion 36c while moving the left end portion of the long hole 36 rearward from the left end portion of the wide front end portion 36a of the long hole 36 shown in FIG. By moving to the left end portion of the wide rear end portion 36b of the long hole 36 shown in FIG. 8, the card 1 and the slide member 50 move together.

  When the pushing force of the card 1 is released in the state where the card 1 is pushed into the most pushed position as described above, the slide member 50 is pushed back from the most pushed position to the front side by the biasing force of the coil spring 60. The card 1 is also pushed back from the most pushed position to the front side. By a series of operations from the initial position of the slide member 50, the bent portion of the other end side of the cam pin 71 passes from the one end side starting portion 70a of the cam groove 70 through the forward path 70b and is introduced into the other end side locking portion 70c. The movement of the slide member 50 toward the front side is restricted, and the slide member 50 is locked with respect to the body 20 at the card mounting position slightly before the most depressed position. As a result, the card 1 is held at the card mounting position engaged with the slide member 50 in the card insertion / removal direction by the lock member 80, and each connection terminal 4 of the card 1 is held in contact with the contact portion 42 of each contact 40. Then, each connection terminal 4 and each contact 40 of the card 1 are electrically connected to enter the card mounting state, and signals can be transmitted and received between the electronic device and the card 1 (see FIG. 6). Further, the card 1 at the card mounting position presses the front end portion of the second movable contact piece 91 on the front side with the front end surface of the card 1, and the front end portion of the second movable contact piece 91 and the first first portion on the rear side. The first and second movable contact pieces 90 and 91 are bent rearward with the tip of the movable contact piece 90 in contact, and the card detection switch is held on.

  At this time, the lock member 80 is in a state in which the engaging portion 81 of the lock member 80 is completely fitted in the notch 3 for locking, and the projection 82 of the lock member 80 is located behind the elongated hole 36 shown in FIG. By moving the left side of the long hole 36 forward from the left end of the wide end portion 36b, the card 1 and the slide member 50 move together. Then, in the card mounted state, the protrusion 82 of the lock member 80 is positioned within the hole width in the rear narrow portion 36c of the long hole 36 as shown in FIG.

  When the card 1 is mistakenly pulled out in the above-mentioned card mounting state, the engaging portion 81 fitted into the locking notch 3 of the card 1 is pressed on the rear end side surface of the notch 3 to lock the locking member. The pressing surface 83 on the outer edge of the protrusion 82 located within the hole width of the rear narrow portion 36c of the long hole 36 is designed to be removed from the notch 3 with the outward bending of 80. The engagement portion 81 is prevented from being detached from the notch 3 by being brought into contact with the top plate portion 31 of the metal cover 30 at the outer edge of the long hole 36 in the narrow rear portion 36c of the 36. As a result, the card 1 is locked (locked) at the mounting position by the lock member 80, and an erroneous pulling-out operation can be prevented in advance.

  When the card 1 is further pulled out (forcibly removed) in the locked state, the pressing surface 83 on the outer edge of the protrusion 82 is on the outer edge of the elongated hole 36 in the rear narrow portion 36c of the elongated hole 36. As shown in FIG. 10, the protrusion 82 is pressed downward by the pressing surface 83 to slightly bend downward (corresponding to the thickness of the top plate portion 31 of the metal cover 30). ) Is embedded under the top plate portion 31 of the metal cover 30. Thereby, it is possible to reliably remove the engaging portion 81 of the lock member 80 from the notch 3 without deforming it while preventing deformation of the contact portion between the protrusion 82 and the top plate portion 31 of the metal cover 30. . Therefore, the card 1 that has been forcibly removed can be removed from the card insertion slot 10 to the outside of the housing 11, and damage to the lock member 80 due to the forced removal of the card 1 in this locked state can be prevented.

  By performing the pushing operation of the card 1 with the card mounted (second pushing operation), both the card 1 and the slide member 50 are pushed again to the most pushed position. By the operation of the slide member 50, the bent portion on the other end side of the cam pin 71 is detached from the locking portion 70c of the cam groove 70 and introduced into the return path 70d, and the lock of the slide member 50 at the card mounting position is released. The By releasing the pushing force of the card 1 at this time, the slide member 50 pushes the front end surface of the card 1 forward by the receiving portion 52 of the slide member 50 by the biasing force of the coil spring 60, and the card 1 is ejected. However, it is pushed back from the most pushed position, returns to the initial position, and returns to the state shown in FIG. The first and second movable contact pieces 90 and 91 are elastically returned to a free state by returning the card 1 to the initial position, and the distal end portion of the first movable contact piece 90 and the distal end portion of the second movable contact piece 91 are separated. The card detection switch is turned off.

  At the time of the card ejection, the lock member 80 is shown in FIG. 9 through FIG. 8 with the protrusion 82 of the lock member 80 in a state where the engaging portion 81 of the lock member 80 is fitted in the notch 3 for locking. By returning to the state 7, the card 1 and the slide member 50 are moved together. Then, when the projection 82 of the lock member 80 returns from FIG. 8 to FIG. 7, it passes through the rear narrow portion 36 c of the long hole 36 and then passes through the intermediate portion 36 e where the hole width gradually narrows, so that the hole width is the largest. By passing through the narrow front portion 36d, the engaging portion 81 fitted into the notch 3 during the card ejection is bent from the notch 3 to, for example, about half of the notch 3 by bending outward. Even if it is detached, the pressing surface 83 at the upper part of the outer edge of the protrusion 82 is in sliding contact with the outer edge of the long hole 36 in the narrow front part 36d from the intermediate part 36e of the long hole 36, so that the engaging part 81 is In addition to restricting the release from the notch 3, the engaging portion 81 can be pushed into the notch 3 to be almost completely inserted, and immediately after this, the slide member 50 reaches the initial position. As a result, even when the card member is ejected, the slide member 50 suddenly stops at the initial position, and even if a dynamic inertia force acts on the card 1, the engaging portion 81 of the lock member 80 is almost completely fitted into the notch 3 for locking. Moreover, since the amount of engagement between the engaging portion 81 and the notch 3 is large, the engaging portion 81 can be reliably engaged and held in the notch 3, and the card 1 can be reliably prevented from popping out. Can do.

  In the card 1 ejected as described above, the end of the card 1 protruding from the card insertion slot 10 to the outside of the housing 11 is grasped and pulled, and the engaging portion 81 of the lock member 80 is locked. While being in sliding contact with the front end side surface of the notch 3, the lock member 80 is flexed outward (right side) and is removed outward from the lock notch 3, and the lock notch 3 and the erroneous insertion prevention cut The card 1 rides on the side surface between the notch 2 and the half lock of the card 1 is released, and the card 1 can be removed from the housing 11 through the card insertion slot 10. Then, after the card 1 is removed, the state returns to the state shown in FIG.

  At this time, as shown in FIG. 7, the protrusion 82 of the lock member 80 does not interfere with the top plate portion 31 of the metal cover 30 within the hole width in the wide front end portion 36 a of the long hole 36, and the engaging portion 81. With the displacement to the outside, the engagement portion 81 can be detached from the locking cutout 3. Thereafter, the lock member 80 is elastically returned to the inside of the lock member 80 when the card 1 is removed, so that the protrusion 82 of the lock member 80 has a wide front end portion of the long hole 36 as shown in FIG. 36a is displaced inwardly without interfering with the top plate portion 31 of the metal cover 30, and is located at the left end portion of the front wide portion 36a of the long hole 36. The engaging portion 81 of the lock member 80 is The engaging portion 81 projects into the housing 11 in the same direction as the overhanging portion 51 slightly on the near side of the overhanging portion 51, and returns to the state shown in FIG.

  When the card 1 that has been forcibly removed in the card mounting state (locked state) is inserted again, the insertion of the card 1 acts as a second pressing operation on the sliding member 50, so the card mounting position of the sliding member 50 The slide member 50 is unlocked, and the slide member 50 is pushed forward from the most pushed-in position while ejecting the card 1 by pushing the front end surface of the card 1 forward by the receiving portion 52 of the slide member 50 by the biasing force of the coil spring 60. It is pushed back, returns to the initial position, and returns to the state of FIG.

  At this time, the protrusion 82 of the lock member 80 that has entered under the top plate portion 31 of the metal cover 30 is moved by the movement of the lock member 80 accompanying the movement of the slide member 50 from the card mounting position to the most pushed position. As shown in FIG. 11, after entering the right end portion of the rear end wide portion 36 b of the long hole 36 from the lower side of the top plate portion 31 of the metal cover 30, by elastic return to the inside of the lock member 80, As shown in FIG. 8, within the hole width in the rear end wide portion 36b of the long hole 36, it is displaced inward without interfering with the top plate portion 31 of the metal cover 30, and in the rear end wide portion 36b of the long hole 36. Displace to the left end. As a result, the engaging portion 81 of the lock member 3 is completely fitted into the notch 3 for locking the card 1 at the most depressed position, and the lock member 80 is not damaged. Thereafter, the lock member 80 returns to the initial position integrally with the card 1 and the slide member 50 in the same manner as in the card ejection.

  As mentioned above, although this Embodiment showed one Embodiment of this invention, this invention is not limited to it, Various modifications can be implemented within the range which does not deviate from the summary. For example, in the present embodiment, a card connector with a push / push type eject mechanism for connecting a micro SD card or a transformer flash to an electronic device is shown. However, the present invention is a card for which another memory card is used. It can also be applied to connectors.

It is an external appearance perspective view of the locking member with which this Embodiment is provided. It is an external appearance perspective view of the insertion initial stage when the card | curd is not inserted in this Embodiment. It is a top view which shows an internal structure when the card | curd is not inserted in this Embodiment. It is a top view which shows the internal structure of the insertion initial stage when a card | curd is inserted in this Embodiment. It is a top view which shows the internal structure of the state by which the card | curd was inserted in this Embodiment and it was pushed to the most pushed position. It is a top view which shows the internal structure of the state in which the card | curd was inserted in this Embodiment and mounted | worn. It is a top view which shows the relationship between the processus | protrusion of the lock member of the initial stage of insertion when a card | curd is inserted, and the hole of a metal cover. It is a top view which shows the relationship between the processus | protrusion of the locking member of the state inserted in the card | curd, and being pushed to the most pushed position, and the hole of a metal cover. It is a top view which shows the relationship between the processus | protrusion of the locking member in the state in which the card | curd was inserted and mounted | worn, and the hole of a metal cover. It is a top view which shows the relationship between the processus | protrusion of the locking member of the state by which the card was forcibly removed in the card mounting state, and the hole of a metal cover. It is a top view which shows the relationship between the processus | protrusion of the lock member of the state in which the card | curd which was forcibly removed and the hole of a metal cover were inserted. The card | curd used for this Embodiment is shown, (A) is a front view, (B) is a side view, (C) is a back view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Card 3 Notch for lock | rock 10 Card insertion slot 11 Housing 20 Body 30 Metal cover 31 Top plate part 36 Long hole 36a Front end wide part 36b Rear end wide part 36c Rear narrow part 36d Front narrow part 36e Middle part 40 Contact 50 Slide member 60 Coil spring (biasing member)
70 Heart-shaped cam groove (cam mechanism)
71 Cam pin (cam mechanism)
80 Locking member 81 Engaging portion 82 Projection 83 Pressing surface

Claims (4)

  The lock member using a metal plate spring that is supported by a cantilever has a mountain-shaped engagement portion obtained by bending the distal end portion of the lock member along the length direction. A card connector that fits into a notch and locks the card in a mounting position, wherein the engaging portion has a protrusion protruding into a hole of a metal cover that covers the upper surface of the card connector, and the protrusion is an excessive force on the card. A card connector characterized in that after being pulled by the metal cover by being pulled out, it sinks into the lower side of the metal cover, and the engaging portion is disengaged from the cutout of the card.   The card connector according to claim 1, wherein the protrusion has a pressing surface for pressing the protrusion downward at a contact portion with the metal cover.   A box-shaped housing comprising an insulating body in which a plurality of contacts are arranged side by side and the metal cover that adheres to the upper surface of the body, and a card insertion slot opened on the front side; and the card insertion slot disposed in the housing A slide member that can be moved in the card insertion / removal direction to be pushed rearward by the card inserted into the housing, an urging member that constantly urges the slide member forward, and the slide member by the card. It has a lock function for holding the slide member in the card mounting position against the biasing member by the first pushing operation and a lock releasing function for releasing the lock by the second pushing operation of the slide member by the card. An ejection mechanism having a cam mechanism, and the locking member is attached to a slide member of the ejection mechanism, Hole of the metal cover is formed into the elongated hole, the card connector according to claim 1 or 2, wherein the locking member is moved sliding member integrally with the said eject mechanism.   The long hole of the metal cover has a hole width between a portion where the protrusion of the lock member is located when the card is mounted and a portion where the protrusion of the lock member passes immediately before the slide member returns to the initial position when the card is ejected. The card connector according to claim 3, wherein the card connector is narrow.

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