JP2010049889A - Card connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a card connector which surely keeps a mounting state of a card. <P>SOLUTION: The connector is provided with a housing 2 forming a concave part 21 for a card 1 to be inserted into and pulled out of, and a cover 3 covering the concave part 21. A slide member 4 is arranged on a wing of the concave part 21 so as to progress or return in a direction parallel to an insertion-pulling direction of the card 1 to form a heart-shaped cam groove 41. A leaf spring 5 includes a projection piece 51 fixed at the slide member 4 and an inverting piece 52 inverting toward a base end part of the projection piece 51. A helical compression spring 6a biases the slide member 4 to a direction discharging the card 1. Of a guide pole 6b, one end is coupled with the heart-shaped cam groove 41, and the other end is supported in free rotation by the housing 2. The slide member 4 includes an engaging side 42 being in contact with an oblique side 1a formed on a side surface of the card 1, and the leaf spring 5 includes a first bending part going in and out from a side surface side of the card 1 on a groove part 1b, and a second bending part approaching a sidewall of the concave part 21. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a card connector. In particular, the present invention relates to a structure of a card connector that is electrically connected to a memory card such as a microSD (Secure Digital) card, which is a micro memory card, when the memory card is inserted.

  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 such as mobile phones with cameras and PDAs (Personal Digital Assistance).

  Compared to disk-type storage devices such as a flexible disk (FD) and a magneto-optical disk (MO), this memory card has a small storage capacity and is considered to be expensive. However, due to the recent technological progress and the mass production effect accompanying the spread of devices using memory cards, the storage capacity has become larger and the price has become lower.

  Furthermore, memory cards have the advantage of not requiring a drive device such as FD and MO to read and write data, so they are suitable for digital cameras, laptop computers, and portable music players where power consumption and portability are important. Is preferred.

  As such a memory card connector, there has been disclosed a push / push type card connector with an eject mechanism that improves the insertion of the memory card (see, for example, Patent Document 1).

  The card connector according to Patent Document 1 includes a housing that accommodates a card and a plurality of contacts that come into contact with the card when the card is accommodated in the housing. Further, the card connector according to Patent Document 1 urges the eject member for card placement provided in the housing so as to be slidable along the card insertion / removal direction, and the eject member toward the card ejection direction. A compression coil spring.

  Further, in the card connector according to Patent Document 1, when the ejection member is urged in the card ejection direction by the compression coil spring, the ejection side portion of the ejection member is inclined downward toward the card ejection side. It has an inclination means.

In the card connector according to Patent Document 1, since the eject member is always lifted upward on the card insertion side and is inclined downward toward the card insertion side, the connector insertion slot becomes wider and the card insertion property is improved. It is going to improve.
JP 2007-48606 A

  However, in the card connector according to Patent Document 1, a pair of leaf springs that urge the surface of the card toward the housing are provided on a metal cover that covers the housing. Therefore, every time the card is attached to or detached from the connector, there is a concern that the tip portions of the pair of leaf springs slide on the surface of the card and damage the symbols and characters printed on the surface of the card.

  Without providing a leaf spring to bias the card to the cover that covers the housing, the card surface can be damaged if a card connector that can prevent the card from being accidentally popped out and can maintain the card mounted state reliably is realized. Can be prevented. 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 can prevent the surface of the card from being damaged and that can reliably maintain the mounted state of the card.

  The present inventors have arranged the J-shaped leaf spring on a slide member that moves together with the card, and configured the J-shaped leaf spring so that the card is not easily detached from the housing. Based on this finding, the inventors have invented the following new card connector.

  (1) A card connector comprising a plate-like housing forming a recess into which a card is inserted and removed, and a cover having a flat surface covering the recess of the housing, in a direction parallel to the card insertion / removal direction. A slide member that is arranged on one wing of the recess so as to advance and retreat, a heart-shaped cam groove is formed, and a protrusion whose base end is fixed to the slide member and whose tip protrudes toward the opening of the recess A J-shaped leaf spring having a piece and a reversing piece which is bent toward the base end portion of the protruding piece and the tip of the protruding piece is bent, and the card holds the slide member. A compression coil spring that urges a force in a discharging direction; and a guide rod having one end connected to the heart-shaped cam groove and the other end rotatably supported by the housing. Is The recess has an engaging side that protrudes from one wing side of the recess to the opening of the recess and contacts the hypotenuse formed on the side of the card, and the projecting piece is a substantially rectangular groove adjacent to the hypotenuse of the card. The first bent portion that enters and exits from the side surface of the card and elastically engages with the groove portion is provided at the tip portion, and the reversal piece is formed in a direction opposite to the first bent portion, and The tip has a second bent portion that moves close to one side wall of the recess, and the second bent portion displaces the first bent portion as the groove portion of the card gets over the first bent portion. A card connector that abuts against one side wall of the recess and biases the force of the first bent portion toward the groove of the card when a force is applied.

  The card connector according to the invention of (1) includes a plate-shaped housing and a cover. The housing forms a recess into which the card is inserted and removed. The cover has a flat surface that covers the recess of the housing. The card connector according to the invention of (1) includes a slide member, a J-shaped plate spring, a compression coil spring, and a guide rod.

  The slide member is disposed on one wing of the recess so as to advance and retreat in a direction parallel to the card insertion / removal direction. The slide member is formed with a heart-shaped cam groove.

  The leaf spring has a protruding piece and a reversing piece. The base end portion of the protruding piece is fixed to the slide member. The tip of the protruding piece protrudes toward the opening of the recess. The reversing piece is bent toward the base end of the protruding piece, with the tip of the protruding piece being bent.

  The compression coil spring is held by the housing and biases the sliding member in the direction in which the card is ejected. One end of the guide rod is connected to the heart-shaped cam groove, and the other end is rotatably supported by the housing. The slide member protrudes from the one wing side of the recess to the opening of the recess, and has an engaging side that comes into contact with the oblique side formed on the side of the card.

  The protruding piece has a first bent portion at the tip. The first bent portion enters and exits from the side surface of the card into a substantially rectangular groove adjacent to the oblique side of the card and elastically engages with the groove. On the other hand, the inversion piece has a second bent portion at the tip. The second bent portion is formed in a direction opposite to the first bent portion and moves close to one side wall of the recess.

  The second bent portion abuts against one side wall of the recess when the groove portion of the card gets over the first bent portion and a force for displacing the first bent portion is applied. Energize the force toward the groove.

  Here, the housing has an insulating property. The insulating housing may be a housing made of a non-conductive material, and a synthetic resin can be molded to obtain an insulating housing having a desired shape.

  A plurality of contacts are arranged in parallel in the recess of the housing. The side-by-side means that they are arranged close to each other and arranged side by side. 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.

  In general, an IC chip is housed in an insulating plastic casing of a card. This IC chip is connected to a plurality of metal foils attached to the surface of the housing. A plurality of metal foils arranged side by side serve as connection terminals for the card. Here, the individual contacts may be connected one-to-one with the individual metal foil terminals, and mechanically and electrically connected.

  The contact is preferably a cantilever contact whose spring function is a cantilever beam. The contact may be composed of an elastic arm and a fixed arm, and the elastic arm may protrude from the bottom surface of the recess to provide a contact point that contacts a connection terminal formed on the card, and the fixed arm is press-fitted into the recess. Can be fixed.

  The fixing arm of the contact can be fixed by being molded integrally with the recess. A lead portion may be formed at the end of the fixed arm, and this card connector can be used as a surface mount connector by soldering the lead portion to a printed board.

  The housing has a pair of opposing side walls and a stop wall that is perpendicular to the pair of side walls and abuts the leading edge of the card. The housing also includes a slide member that slides along one side wall. Then, a thin rectangular parallelepiped space surrounded by the side wall of the slide member, the other side wall, and the stop wall can be defined as “a concave portion into which the card is inserted and removed”. It can also be a card holding part.

  By covering the concave portion with the cover, a rectangular opening into which the card is inserted is formed facing the stop wall. Here, the distance between the side wall of the opposing slide member and the other side wall is sufficiently wider than the width of the card, and the other side wall, the slide member, and the leaf spring regulate both wings of the card so that the correct posture of the card ( (Tilt) is maintained, and the card connection terminals and contacts can be properly aligned.

  The cover is made of a thin metal plate, and a cover having a desired shape can be obtained by molding the developed thin metal plate. The cover is preferably made of a conductive thin metal plate, and a shielding effect is obtained when the flat surface of the cover covers the housing. Since the flat surface of the cover is not provided with a leaf spring for biasing the card, it is possible to prevent the card surface from being damaged.

  In the cover, both wings may be bent at a right angle, a rectangular hole may be formed in these bent pieces, and the cover may be locked to a lance protruding on both side surfaces of the housing. Moreover, the lead part soldered to the printed board may be provided on the cover, the bonding strength with the printed board can be reinforced, and the cover can be grounded to the ground of the printed board. A flat surface of the cover that faces the recess may be provided with a cantilevered spring piece that urges the guide rod to the bottom surface of the heart-shaped cam groove.

  A slide member is disposed on one wing of the recess. You may provide the card | curd detection switch which detects electrically that a card | curd exists in a mounting position in the other wing | blade of a recessed part. For example, the card detection switch may be composed of a movable plate and a fixed plate. When the card is in the mounting position, the movable plate is displaced by being pushed by the card, and the movable plate and the fixed plate are electrically connected. It becomes. When the card is removed, the movable plate returns and the movable plate and the fixed plate are electrically disconnected. In this way, the presence or absence of a card is detected.

  A groove for guiding the slide member to be movable may be provided on one wing of the housing, and the slide member is regulated by the groove and can advance and retreat in a direction parallel to the card insertion / removal direction. The slide member is only allowed to move forward and backward.

  For example, a vertically long groove for accommodating a compression coil spring is formed in one wing of the housing. On the other hand, a single wing piece with which one coil end portion of the compression coil spring comes into contact is formed on the slide member. The single wing piece protrudes in an L shape in a direction orthogonal to the longitudinal direction of the slide member. Then, both the coil end portions of the compression coil spring are mounted between the single blade piece and the stop wall, so that the force can be applied to the slide member in the direction in which the card is ejected. When the card is not inserted, the slide member is urged by the compression coil spring and stops on the opening side of the recess.

  Both ends of the guide rod may be bent at substantially right angles, and one end of the guide rod is connected to a heart-shaped cam groove formed in the surface of the slide member. On the other hand, the other end of the guide rod is inserted into a hole formed in the stop wall of the housing and is rotatably supported. One end of the guide rod follows the heart-shaped cam groove.

  If a slide member having a heart-shaped cam groove is a cam serving as a moving node and the guide rod is a driven node, the slide member and the guide rod constitute a cam device in which the cam and the driven node are relatively displaced. I can say that. Further, the cam groove is not only a plane curve that draws a heart-shaped locus, but also a space curve including a continuous locus in which the bottom surface of the cam groove is a step or a slope. The slide member and the guide rod can constitute a so-called three-dimensional cam device.

  Furthermore, the heart-shaped cam groove depicts a trajectory of a travel stroke from the start point and a trajectory of a return stroke returning to the start point. The trajectory of the heart-shaped cam groove depicts an irreversible continuous trajectory in which one end of the guide rod does not reverse in the entire stroke, even though one end of the guide rod partially reverses.

  As a substance, the heart-shaped cam groove is formed with a V-shaped groove that sinks into a V-shape at the branch point of the locus of the going stroke and the locus of the returning stroke. When one end of the guide bar is engaged with the V-shaped groove, the slide member can be locked at the card mounting position by being biased by the compression coil spring. It can also be said that the cam device constituted by the heart-shaped cam groove and the guide rod defines the stop position of the slide member.

  When a card is inserted into this connector and pushed against the compression coil spring, one end of the guide rod advances relatively from the starting point toward the branch point where the V-shaped groove is formed. Then, one end of the guide bar is locked in the V-shaped groove to lock the card. When the card is pushed from the locked state, one end of the guide rod is released from the V-shaped groove and returns to the starting point. That is, it moves in the direction in which the card is ejected. Thus, the slide member having the heart-shaped cam groove and the guide bar constitute a so-called push-push type eject mechanism.

  The leaf spring may have a strip-shaped protruding piece that extends to form a reversing piece whose tip end is reversed and extends substantially parallel to the protruding piece. The reversing piece is formed in a J-shape shorter than the protruding piece. The For example, the base end portion of the protruding piece can be fixed to the slide member by press fitting. It arrange | positions so that the front end side of a leaf | plate spring may protrude toward the opening of a recessed part. Then, the leaf spring and the slide member advance and retract together. The leaf spring may be a cantilever beam, and the leaf spring is elastically deformed by applying a load to the first bent portion formed at the tip of the protruding piece.

  For example, the card is formed in a substantially rectangular shape, and the front end side where the connection terminals are arranged is narrower than the base end side. The leading end side of the card forms a hypotenuse where one of the parallel side surfaces is open at an obtuse angle, and is continuous with one of the side surfaces parallel to the base end side. That is, the front end side of the card has a shape in which one corner is cut out like a single blade. A substantially square groove is adjacent to the oblique side of the card.

  When the card is inserted into the concave portion of the housing, the hypotenuse contacts the first bent portion. Further, when the card is inserted, the first bent portion is elastically deformed in a direction away from the oblique side while sliding with the oblique side of the card. Then, in a state where the oblique side is in contact with the engaging side of the slide member, the first bent portion slides on the side surface of the card and protrudes into the groove portion of the card. The engaging side of the slide member may be formed with a slope having the same slope as the oblique side of the card. Subsequently, when the card is pushed, the slide member moves in the back direction of the concave portion of the housing.

  In a state where the card has been pushed all the way back, one end of the guide bar is locked in the V-shaped groove, and the slide member is locked to the housing at the card mounting position. At the card mounting position, the first bent portion at the tip of the protruding piece is elastically locked to the groove of the card, so that the card mounting state can be maintained.

  In a state where the card is attached, when the groove portion of the card gets over the first bent portion and a force for displacing the first bent portion is applied, the second bent portion comes into contact with one side wall of the concave portion and the first bent portion. Since the portion urges the force toward the groove portion of the card, the mounted state of the card can be reliably maintained.

  Once the card is pushed from the card mounted state, one end of the guide rod is released from the V-shaped groove and moves in the return stroke. The slide member is biased by the compression coil spring and moves the card to the opening side of the recess. The slide member stops when one end of the guide rod returns relatively to the starting point of the heart-shaped cam groove. Here, an inertial force acts on the card, but since the first bent portion is elastically locked to the groove portion of the card, the card can be prevented from being accidentally popped out. Then, the card can be detached from the connector by pulling out the card with a relatively strong force.

  Thus, in the card connector according to the invention of (1), the J-shaped leaf spring is arranged on the slide member that moves together with the card, and the first bent portion provided on the J-shaped leaf spring is provided on the card. When the force that displaces the first bent portion is applied when the groove portion of the card is fitted into the formed rectangular groove and the card groove gets over the first bent portion, the second bent portion hits one side wall of the recess. Since the first bent portion urges the force toward the groove portion of the card in contact, the mounting state of the card can be reliably maintained.

  The card connector according to the invention of (1) is a card that can prevent inadvertent jumping of the card and reliably maintain the card mounting state without providing a leaf spring that biases the card to the cover that covers the housing. Since the connector is realized, the card surface can be prevented from being damaged.

  (2) The card connector according to (1), wherein the one side wall of the concave portion has a protrusion protruding toward the other side wall of the concave portion in the vicinity of the opening of the concave portion.

  As described above, once the card is pushed from the loaded state, one end of the guide rod is released from the V-shaped groove and moves in the return stroke. The slide member is biased by the compression coil spring and moves the card to the opening side of the recess.

  In the middle of the movement of the slide member to the opening side of the recess, the second bent portion collides with the protrusion to temporarily prevent the slide member from moving. Here, this protrusion acts to relieve the penetrating force of the compression coil spring and suppress the card from popping out. The card can be taken out by pulling out the card with a strong force by which the second bent portion overcomes the protrusion.

  (3) The card according to (1) or (2), wherein the second bent portion is released from one side wall of the recess in a state where the slide member has advanced toward the opening of the recess and stopped. connector.

  In the card connector according to the invention of (3), the second bent portion is released from one side wall of the recess when the slide member is advanced toward the opening of the recess and stopped, so that the card can be easily taken out. be able to.

  In the card connector according to the present invention, a J-shaped leaf spring is arranged on a slide member that moves together with the card, and a semi-first bent portion provided on the J-shaped leaf spring is formed into a rectangular groove portion formed on the card. And the groove portion of the card gets over the first bent portion, and when a force for displacing the first bent portion is applied, the second bent portion comes into contact with one side wall of the recess and the first bent portion Urges the force toward the groove of the card, so that the mounted state of the card can be reliably maintained.

  The card connector according to the present invention is a card connector that can prevent the card from being accidentally popped out without providing a leaf spring that urges the card in the cover that covers the housing, and that reliably maintains the mounted state of the card. Since this is realized, it is possible to prevent the card surface from being damaged.

  FIG. 1 is an exploded perspective view showing an embodiment of a card connector (hereinafter abbreviated as a connector) according to the present invention. FIG. 2 is a perspective exploded view of the connector according to the embodiment. FIG. 3 is a perspective external view of the connector according to the embodiment, in which a cover is removed. FIG. 4 is a perspective external view of the connector according to the embodiment, and is a state diagram in which a card is mounted.

  FIG. 5 is a plan view of the connector according to the embodiment. FIG. 6 is a perspective external view of the connector according to the embodiment, and the connector is viewed from a direction different from FIG. FIG. 7 is a side view of the slide member of the connector according to the embodiment. FIG. 8 is a plan view of the connector according to the embodiment, in which a card is taken out. FIG. 9 is a plan view of the connector according to the embodiment, in which the card is completely installed.

  Initially, the structure of the connector by embodiment of this invention is demonstrated. In FIG. 1 or 2, the connector 10 includes a plate-shaped housing 2 and a cover 3. The housing 2 forms a recess 21 into which the card 1 is inserted and removed. The cover 3 covers the recess 21 of the housing 2. The housing 2 is formed in a rectangular shape with an insulating synthetic resin material. The cover 3 is formed of a metal plate, and both wings are bent in an L shape.

  1 or 2, the connector 10 includes a slide member 4, a J-shaped plate spring 5, a compression coil spring 6a, and a guide rod 6b. The slide member 4 is disposed on one wing of the recess 21 so as to advance and retract in a direction parallel to the insertion / extraction direction of the card 1. The slide member 4 has a heart-shaped cam groove 41 formed therein.

  In FIG. 1 or FIG. 2, the leaf spring 5 has a protruding piece 51 and a reversing piece 52. A base end portion of the protruding piece 51 is fixed to the slide member 4. The tip of the protruding piece 51 protrudes toward the opening of the recess 21. The reverse piece 52 is inverted toward the base end portion of the protruding piece 51 by bending the tip end portion of the protruding piece 51.

  In FIG. 1 or FIG. 2, the compression coil spring 6 a is held by the housing 2 and biases the slide member 4 in the direction in which the card 1 is ejected. One end 61b of the guide rod 6b is connected to the heart-shaped cam groove 41, and the other end 62b is rotatably supported by the housing 2. The slide member 4 has an engagement side 42 that protrudes from the one wing side of the recess 21 into the opening of the recess 21 and abuts the oblique side 1 a formed on the side of the card 1.

  Referring to FIG. 5, the protruding piece 51 has a first bent portion 51 a at the tip portion. The first bent portion 51a enters and exits from the side surface side of the card 1 into the substantially square groove portion 1b adjacent to the oblique side 1a of the card 1 and elastically engages with the groove portion 1b. On the other hand, the inversion piece 52 has the 2nd bending part 52a in the front-end | tip part. The second bent portion 52 a is formed in a direction opposite to the first bent portion 51 a and moves close to one side wall 21 a of the recess 21.

  1 or 2, the connector 10 has an opening into which the card 1 is inserted by attaching the cover 3 to the housing 2 to form a thin rectangular parallelepiped-shaped card holding portion (see FIG. 4). In addition, eight contacts 7 are arranged in parallel in the recess 21 of the housing 2. The plurality of contacts 7 are in electrical and mechanical contact with a plurality of connection terminals (not shown) formed on the surface of the card 1.

  In FIG. 6, the contact 7 may be a cantilever contact whose spring works as a cantilever, and is composed of an elastic arm and a fixed arm. The elastic arm protrudes from the bottom surface of the recess 21 and is provided with a contact 71 that contacts a connection terminal (not shown) formed on the card 1 (see FIG. 1). The fixed arm is molded and fixed integrally with the recess 21. Moreover, the lead part 72 is formed in the edge part of a fixed arm, and the connector 10 can be made into the connector for surface mounting by soldering the lead part 72 to the printed circuit board 1p (refer FIG. 4).

  In FIG. 5, the housing 2 has a pair of side walls 21a and 21b facing each other, and a stop wall 21c that is perpendicular to the pair of side walls 21a and 21b and against which the leading edge of the card 1 abuts. The housing 2 includes a slide member 4 that slides along the side wall 21a. A thin rectangular parallelepiped space surrounded by the side wall 43, the side wall 21 b, and the stop wall 21 c of the slide member 4 can be used as the recess 21.

  In FIG. 3, the recess 21 is covered with the cover 3, so that a rectangular opening into which the card 1 is inserted is formed facing the stop wall 21 c. The distance between the opposing side wall 21b and the side wall 43 of the slide member 4 is slightly wider than the width of the card 1, and the other side wall 21b, the slide member 4 and the leaf spring 5 regulate both wings of the card 1, 1 is regulated, and the connection terminal of the card 1 and the contact 7 can be correctly aligned.

  In FIG. 1 or FIG. 2, the cover 3 has both wings bent at a right angle. A plurality of rectangular holes 3a are formed in these bent pieces. The cover 3 is assembled by locking the rectangular holes 3a to the lances 2r protruding from both side surfaces of the housing 2 (see FIG. 5). The cover 3 is provided with lead portions 3r that are soldered to the printed circuit board 1p (see FIG. 4). On the flat surface 30 of the cover 3 facing the recess 21, a cantilevered spring piece 31 is provided to urge the guide rod 6 b against the bottom surface of the heart-shaped cam groove 41.

  As shown in FIG. 5 or FIG. 6, the slide member 4 is disposed on one wing of the recess 21. A card detection switch 8 that electrically detects that the card 1 is in the mounting position is provided on the other wing of the recess 21. The card detection switch 8 includes a movable plate 8a and a fixed plate 8b. When the card 1 is in the mounting position (see FIG. 4), the tip of the movable plate 8a is displaced by being pushed by the tip edge of the card 1, and the fixed plate 8b is electrically connected. When the card 1 is removed, the movable plate 8a returns and the movable plate 8a and the fixed plate 8b are electrically disconnected. In this way, the presence or absence of the card 1 is detected.

  2 or 6, a groove 22 for movably guiding the slide member 4 is provided on one wing of the housing 2. The slide member 4 is restricted by the groove 22 and can advance and retreat in a direction parallel to the card 1 insertion / extraction direction. The slide member 4 is only allowed to move forward and backward.

  In FIG. 2 or FIG. 6, a longitudinal groove 22 that accommodates the compression coil spring 6 a is formed in one wing of the housing 2. On the other hand, the slide member 4 is formed with a single wing piece against which one coil end of the compression coil spring 6a abuts. The one wing piece protrudes in an L shape in a direction orthogonal to the longitudinal direction of the slide member 4.

  In FIG. 2 or 6, a cylindrical protrusion 4 a that protrudes into the groove 22 is formed on one wing piece of the slide member 4. On the other hand, a rectangular groove 2 a facing the cylindrical protrusion 4 a and communicating with the groove 22 is formed on the stop wall 21 c of the housing 2. Then, by mounting both coil ends of the compression coil spring 6a between the cylindrical protrusion 4a and the rectangular groove 2a, it is possible to urge the slide member 4 in the direction in which the card 1 is ejected. In a state where the card 1 is not inserted, the slide member 4 is urged by the compression coil spring 6a and stops on the opening side of the recess 21.

  In FIG. 1 or 2, both ends of the guide rod 6 b are bent substantially at a right angle, and one end 61 b of the guide rod 6 b is connected to a heart-shaped cam groove 41 formed in the surface of the slide member 4. On the other hand, the other end 62b of the guide rod 6b is inserted into a hole 22a formed in the stop wall 21c of the housing 2, and is supported rotatably. The one end 61b of the guide bar 6b can follow the heart-shaped cam groove 41.

  1 or 2, the slide member 4 and the guide bar 6b constitute a cam device in which the cam and the follower are relatively displaced. The cam groove 41 is not only a plane curve that draws a heart-shaped trajectory (see FIG. 5), but also a space curve that includes a continuous trajectory in which the bottom surface of the cam groove 41 is a step or a slope (see FIG. 7). Here, the slide member 4 and the guide rod 6b constitute a three-dimensional cam device.

  In FIG. 5, the heart-shaped cam groove 41 depicts a trajectory of a travel stroke from the start point A1 and a trajectory of a return stroke returning to the start point A1. The trajectory of the heart-shaped cam groove 41 depicts an irreversible continuous trajectory in which the one end 61b of the guide rod 6b does not reverse in the entire stroke even though the one end 61b of the guide rod 6b partially reverses. The heart-shaped cam groove 41 is formed with a V-shaped groove A2 that is recessed in a V shape at a branch point between the locus of the going stroke and the locus of the returning stroke.

  In FIG. 5, the one end 61 b of the guide rod 6 b is engaged with the V-shaped groove A 2, so that it is biased by the compression coil spring 6 a and the slide member 4 can be locked at the card 1 mounting position. The cam device constituted by the heart-shaped cam groove 41 and the guide rod 6 b defines the stop position of the slide member 4.

  5 to 7, the leaf spring 5 forms a reversal piece 52 that extends substantially parallel to the protruding piece 51 by extending the band plate-like protruding piece 51 and inverting the tip of the protruding piece 51. The illustrated leaf spring 5 has a reversing piece 52 formed in a J shape shorter than the protruding piece 51.

  5 to 7, the base end portion of the protruding piece 51 is press-fitted and fixed to the slide member 4. It arrange | positions so that the front end side of the leaf | plate spring 5 may protrude toward the opening of the recessed part 21. FIG. And the leaf | plate spring 5 and the slide member 4 advance / retreat integrally. The leaf spring 5 may be a cantilever beam, and the leaf spring 5 is elastically deformed when a load acts on the first bent portion 51 a formed at the tip of the protruding piece 51.

  As shown in FIG. 1 or FIG. 5, the card 1 is formed in a substantially rectangular shape, and the distal end side where the connection terminal (not shown) is arranged is narrower than the proximal end side. The leading end side of the card 1 forms a hypotenuse 1a whose one side surface is open at an obtuse angle among the parallel side surfaces, and is continuous with one side surface of both side surfaces parallel to the base end side. The front end side of the card 1 has a shape in which one corner is cut out like a single blade. A substantially square groove 1 b is adjacent to the oblique side 1 a of the card 1.

  Next, the operation and action of the connector according to the embodiment of the present invention will be described.

  When the card 1 is inserted into the recess 21 from the state shown in FIG. 1 or FIG. 5, the hypotenuse 1a of the card 1 comes into contact with the first bent portion 51a. Further, when the card 1 is inserted, the first bent portion 51a slides with the hypotenuse 1a and elastically deforms in a direction away from the hypotenuse 1a. When the oblique side 1a is in contact with the engaging side 42 (see FIG. 3), the first bent portion 51a slides on the side surface of the card 1 and protrudes into the groove portion 1b of the card 1. Note that the engaging side 42 of the slide member 4 is formed with a slope having the same slope as the oblique side 1 a of the card 1. Subsequently, when the card is pushed, the slide member 4 moves in the back direction of the recess 21 of the housing 2 (see FIG. 3).

  In FIG. 5, in a state where the card 1 is pushed all the way back, one end 61b of the guide bar 6b is engaged with the V-shaped groove A2, and the slide member 4 is locked to the housing 2 at the mounting position of the card 1. (See FIG. 9). In the mounting position of the card 1 shown in FIG. 9, the first bent portion 51a at the tip of the protruding piece 51 is elastically locked to the groove 1b of the card 1, so that the mounting state of the card 1 is reliably maintained. Yes (see FIG. 9).

  In the mounted state of the card 1 shown in FIG. 9, when the groove 1b of the card 1 gets over the first bent portion 51a and a force for displacing the first bent portion 51a is applied, the second bent portion 52a is Since the first bent portion 51a abuts against the side wall 21a of the recess 21 and urges the force toward the groove portion 1b of the card 1, the mounted state of the card 1 can be reliably maintained.

  When the card 1 is once pressed from the mounted state of the card 1 shown in FIG. 9, the one end 61b of the guide bar 6b is released from the V-shaped groove A2 and moves to the return stroke (see FIG. 5). Then, the slide member 4 is urged by the compression coil spring 6 a to move the card 1 to the opening side of the recess 21. When the one end 61b of the guide rod 6b relatively returns to the starting point A1 of the heart-shaped cam groove 41, the slide member 4 stops (see FIG. 5). Here, although inertia force acts on the card 1, since the first bent portion 51a is elastically locked to the groove 1b of the card 1, it is possible to reliably prevent the card 1 from being accidentally popped out. Then, the card 1 can be detached from the connector 10 by pulling the card 1 with a relatively strong force.

  Thus, in the connector 10 according to the embodiment of the present invention, the J-shaped leaf spring 5 is disposed on the slide member 4 that moves together with the card 1, and the first bent portion 51 a provided on the J-shaped leaf spring 5. Is fitted into a rectangular groove 1b formed on the card 1, and the second bent portion is applied when a force that displaces the first bent portion 51a is applied when the groove 1b of the card 1 passes over the first bent portion 51a. 52a abuts against one side wall 21a of the recess 21 and the first bent portion 51a urges the force toward the groove 1b of the card 1, so that the mounted state of the card 1 can be reliably maintained.

  The connector 10 according to the embodiment of the present invention can prevent the card 1 from being accidentally popped out without providing the cover 3 that covers the housing 2 with a leaf spring that urges the card 1, and the card 1 can be securely attached. Since the card connector is maintained, the surface of the card 1 can be prevented from being damaged.

  Furthermore, the connector 10 according to the embodiment of the present invention has a protrusion 211 that protrudes toward the other side wall 21b of the recess 21 in the vicinity of the opening of the recess 21 on one side wall 21a of the recess 21 (FIG. 8 or FIG. 9).

  As described above, once the card 1 is pressed from the state in which the card 1 is mounted, the one end 61b of the guide bar 6b is released from the V-shaped groove A2 and moves in the return stroke (see FIG. 5). The slide member 4 is urged by the compression coil spring 6a to move the card 1 to the opening side of the recess 21 (see FIG. 9).

  In FIG. 9, while the slide member 4 moves to the opening side of the recess 21, the second bent portion 52 a collides with the protrusion 211 to temporarily prevent the slide member 4 from moving. Here, the protrusion 211 acts to alleviate the penetrating force of the compression coil spring 6a and suppress the card from popping out. The card 1 can be taken out by pulling out the card 1 with a strong force by which the second bent portion 52a gets over the protrusion 211.

  As shown in FIG. 8, the second bent portion 52 a is released from one side wall 21 a of the recess 21 in a state where the slide member 4 has advanced toward the opening of the recess 21 and stopped. In a state where the slide member 4 advances toward the opening of the concave portion 21 and stops, the second bent portion 52a is released from the one side wall 21a of the concave portion 21, so that the card 1 can be easily taken out.

1 is an exploded perspective view showing an embodiment of a card connector according to the present invention. FIG. 3 is an exploded perspective view of the card connector according to the embodiment. FIG. 4 is a perspective view of the card connector according to the embodiment, with the cover removed. FIG. 2 is a perspective external view of the card connector according to the embodiment, in which a card is mounted. It is a top view of the connector for cards by the embodiment. FIG. 4 is a perspective external view of the card connector according to the embodiment, and the card connector is viewed from a direction different from FIG. 3. It is a side view of the slide member of the card connector according to the embodiment. It is a top view of the card connector by the said embodiment, and is the state figure which took out the card | curd. It is a top view of the connector for cards by the above-mentioned embodiment, and is a state figure in which a card was installed completely.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Card 1a Oblique side 1b Groove part 2 Housing 3 Cover 4 Slide member 5 Leaf spring 6a Compression coil spring 6b Guide rod 10 Connector (card connector)
21 recess 21a side wall (one side wall)
21b Side wall (the other side wall)
30 Flat surface 41 Cam groove 42 Engagement side 51 Projection piece 51a 1st bending part 52 Inversion piece 52a 2nd bending part

Claims (3)

A card connector comprising a plate-like housing that forms a recess into which a card is inserted and removed, and a cover having a flat surface that covers the recess of the housing,
A slide member disposed on one wing of the recess so as to advance and retreat in a direction parallel to the card insertion / removal direction, and formed with a heart-shaped cam groove;
A base piece fixed to the slide member, a tip piece protruding toward the opening of the concave portion, and a reversal in which the tip end portion of the protrusion piece is bent and reversed toward the base end portion of the protrusion piece A J-shaped leaf spring having a piece;
A compression coil spring held in the housing and biasing the slide member in a direction in which the card is ejected;
A guide rod having one end connected to the heart-shaped cam groove and the other end rotatably supported by the housing;
The slide member has an engagement side that protrudes from the one wing side of the recess to the opening of the recess and contacts an oblique side formed on the side of the card,
The protruding piece has a first bent portion at the tip portion that enters and exits from the side surface side of the card into a substantially rectangular groove portion adjacent to the oblique side of the card and elastically engages with the groove portion.
The reversal piece is formed in a direction opposite to the first bent portion, and has a second bent portion that moves close to one side wall of the concave portion at the tip portion,
The second bent portion abuts against one side wall of the recess when the groove portion of the card gets over the first bent portion and a force for displacing the first bent portion is applied. A card connector that urges the force of the portion toward the groove of the card.   2. The card connector according to claim 1, wherein one side wall of the recess has a protrusion protruding toward the other side wall of the recess in the vicinity of the opening of the recess.   3. The card connector according to claim 1, wherein the second bent portion is released from one side wall of the recess in a state where the slide member advances toward the opening of the recess and stops.

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