JP2007220685A - Electronic card connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make accidental ejection of a card due to a drop impact or the like occur hardly, without impairing card insertion operability even if only a simple countermeasure to slightly change a shape of the bottom face of an escape passage in a cam body is taken. <P>SOLUTION: A slider is slender in the card insertion direction and made possible to be slid on the side of a card insertion space. An escape passage 26 of a locking pin intersects with the slider longitudinal direction, and on the bottom face thereof, an inclined face 32 which has an inclined angle against the bottom face of a locking place "a" and which becomes to have a rising gradient directed toward the upper end side of a stepped face 31 from the bottom face side of the locking place "a". The locking end of the locking pin is pressed against the bottom face of the escape passage 26 by a spring piece part provided at a cabinet, and an elastic piece part in order to half-lock a card is provided at the slider. The spring piece part and the elastic piece part are slender in the slider longitudinal direction, and the rising gradient direction of the inclined face intersects with respective longitudinal directions of the slider, spring piece part, and elastic piece part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a card connector, in particular, a so-called push-push type card in which the card positioning at the card setting position and the card ejection from the card setting position are alternately performed by repeating the pushing operation of the card. Concerning connectors.

  Conventionally, the slider is pushed from the standby position to the pushing position by the first pushing operation of the card inserted into the card insertion space of the housing, and the slider that has reached the pushing position is locked at that position and the card is positioned at the card setting position. On the other hand, there has been known a card connector in which the slider is unlocked by the second card pushing operation, and the card is retracted and ejected together with the slider. Among such connectors, in which the function of locking and unlocking the slider is exhibited by the cam mechanism, the cam mechanism is configured as shown in FIG. 12 or FIG.

  FIG. 12 is a schematic perspective view showing the cam body 20 of the cam mechanism 10 employed in the conventional card connector, and FIG. 13 is a longitudinal side view of the main part of the cam mechanism 10.

  The cam mechanism 10 includes a cam body 20 and a locking pin 40 formed by bending a wire having springiness. A loop groove 21 is formed in the cam body 20, and in addition to the forward path 22 and the return path 23, the loop groove 21 includes a protruding locking portion 24 formed between them and an outward path end portion 22a. An introduction path 25 leading to the locking part 24, an escape path 26 extending from the locking part 24 to the return path starting part 23a, and the like are provided. The loop groove 21 is formed in an elongated heart shape as a whole, and the introduction path 25 and the escape path 26 form a heart-shaped recess.

  In this cam mechanism 10, the cam body 20 is elastically biased in the direction of arrow A by the biasing force indicated by arrow A in FIG. On the other hand, the base (not shown) of the locking pin 40 is swingably supported at a fixed position, and the locking end 41 of the tip is always fitted in the loop groove 21. The locking end 41 is located at a junction 27 between the start of the forward path 22 and the end of the return path 23 (this state is not shown). Further, the locking pin 40 is constantly pressed against the bottom surface of the loop groove 21 by its own elasticity or the action of a spring piece (not shown).

  When the cam body 20 is pushed against the urging force A from the state where the locking end 41 of the locking pin 40 is positioned at the joining point 27 of the loop groove 21, the locking end 41 is When the forward path 22 is moved to reach the forward path end 22a, and the pushing force is released at that time, the cam body 20 is pushed back by the urging force A, and the locking end 41 moves through the introduction path 25 as shown in FIG. Thus, it is locked to the locking portion 24. Next, when the cam body 20 is pushed against the urging force A, the locking end 41 moves along the escape path 26 and reaches the return path start portion 23a, and when the pushing force is released at that time, the urging force is released. The cam body 20 is pushed back by A, and the locking end 41 moves along the return path 23 and returns to the junction 27.

  In the conventional card connector, the cam body 20 is provided integrally with a slider (not shown) attached to a housing (not shown) forming a card insertion space so as to be movable back and forth, and the urging force A is applied to the cam body 20. Added to the slider. The slider is pushed by the card inserted into the card insertion space and pushed from the standby position to the pushing position corresponding to the card setting position. Then, as shown in FIG. 13, when the locking end 41 is locked to the locking portion 24, the slider is locked at the pushing position. Therefore, the card is positioned at the card setting position by the first card push operation, and the electrode on the card side comes into contact with the contact provided on the housing side so that the two are electrically connected. On the other hand, when the slider is pushed in by the card from the state where the slider is locked, the locking end 41 moves along the escape path 26 and disengages from the locking portion 24 as described above, so the locked state of the slider is released. Thereafter, the locking end 41 returns to the junction 27 through the return path 23, and the card is discharged. Accordingly, the locked state of the slider is released by the second card push operation, and the card positioned at the card setting position is ejected.

  As can be seen from FIG. 12 or FIG. 13, in the cam mechanism 10 employed in the conventional card connector, a stepped surface 31 is provided at the boundary between the escape path 16 and the return path 23 of the loop groove 21 of the cam body 20. Yes. Then, after the locking end 41 moves along the escape path 26 and reaches the return path start portion 23a, the stepped surface 31 slides with the locking end 41 when the cam body 20 is retracted. 41 is kept in the return path 23, thereby preventing the locking end 41 from going back to the locking position a with the locking portion 24. In addition, the bottom surface 26a of the escape path 26 is formed as a horizontal plane, and in the second push operation of the card, the locking end 41 that is elastically pressed against the horizontal bottom surface 26a of the escape path 26 by the action of the spring piece described above is provided. Then, it slides on the bottom surface 26a, gets over the stepped surface 31 and reaches the return path start portion 23a.

  On the other hand, in the preceding example, it is described that the same kind of cam mechanism as the above-described cam mechanism 10 is employed to lock the slider or release the locked state (see, for example, Patent Document 1).

  In addition, other prior examples describe that a cam mechanism of the same type as the cam mechanism 10 described above is used to lock the slider and release the locked state, and the card is placed in the card setting position. As a means for positioning, a means for directly locking the elastic locking piece provided on the slider to the notch of the card, or a locking end of the locking pin of the cam mechanism is formed on the housing. It is described that a spring piece portion formed by cutting and raising a metal cover is elastically pressed against the bottom surface of the loop groove on the cam body side (see, for example, Patent Document 2).

Japanese Patent No. 3083778 JP 2002-134224 A

  In the cam mechanism 10 described with reference to FIG. 12 or FIG. 13, the slider is locked at its pushing position, that is, the locking end 41 of the locking pin 40 is locked to the locking portion 24 of the cam body 20. In this state, since the locking portion 24 is pressed against the locking end 31 by the urging force A and locked, there is no situation where the slider is retracted and the card is ejected. However, when a force larger than the urging force A is applied to the slider in the opposite direction due to some force larger than the urging force A, for example, a reaction of a drop impact, the second push operation of the card is performed. Similarly, a situation may occur in which the locking end 41 moves along the escape path 26 and escapes to the return path start portion 23a. Therefore, a situation may occur in which the locked state of the slider is released and the card is accidentally ejected. In particular, the bottom surface 26a of the escape path 26 is a horizontal plane, and the bottom surface 26a of the escape path 26 is high and the bottom surface of the return path 23 is low with the stepped surface 31 as a boundary. It can be said that an easy situation has been created. If the card is accidentally ejected due to the unlocked state of the slider, the electrical connection between the card-side electrode and the housing-side contact is accidentally interrupted, and the card side or There is a risk of adversely affecting electronic components on the equipment side.

  Such a problem also exists in the preceding examples described above. In particular, in Patent Document 2 listed as another prior example, although the elastic lock piece is engaged with the card at the card setting position and the card is not accidentally ejected, the elastic lock piece is applied to the slider. Since the card is ejected together with the slider when the locked state at the pushing position of the slider is released, the problem described above can be solved by the technique described in the preceding example. Can not.

  The present invention has been made in view of the above problems, and in spite of merely taking a simple measure of slightly changing the configuration of the cam mechanism, accidental ejection of the card due to a drop impact or the like is prevented. An object is to provide a card connector that is less likely to occur.

  The card connector according to the present invention is pushed from the standby position to the pushing position corresponding to the card setting position by being pushed by the card inserted into the card insertion space into the housing forming the card insertion space, and at the pushing position. A cam that has a slider that is elastically urged in the card ejection direction and is movably mounted in the back-and-forth direction, and a function that locks the slider at the pushing position and a function that unlocks the slider locked at the pushing position. A locking pin attached to one side member of the housing and the slider, and a locking end of the locking pin fitted in a freely displaceable manner. A cam body having a loop groove joined thereto, and the loop groove of the cam body locks the locking end via the forward path of the loop groove, thereby A protrusion-shaped locking portion that locks the card at the pushing position corresponding to the card setting position, and when the slider is pushed from the pushing position, the locking end is moved from the locking position with the locking portion to the loop groove. An escape path that escapes to the start of the return path, and a stepped surface that locks the locking end that is released to the start of the return path when the slider is retracted and prevents its reverse movement so that the locking end stays in the return path. The locking end is elastically pressed against the bottom surface of the escape path. This is the same as the conventional example described with reference to FIG.

The present invention is characterized in that the following configuration is added to this configuration . That is, the slider is elongated in the card insertion direction and is slidable on the side of the card insertion space, and the direction of the escape path intersects the longitudinal direction of the slider. the bottom surface of the escape passage, located between the flat bottom and the stepped surface of the locking portion, Chi lifting the inclination angle with respect to the flat bottom surface of the locking portion, or one of the locking portion An inclined surface that is inclined upward from the bottom surface side toward the upper end side of the stepped surface is provided separately from the flat bottom surface of the locking portion, and the locking piece is provided on the casing. The slider is provided with an elastic piece for half-locking the card inserted into the card insertion space, and the spring piece and the elastic piece are Of the slider It is elongated in the hand direction, and the direction of the upward slope of the inclined surface is a direction intersecting with the longitudinal direction of the slider, the spring piece portion and the elastic piece portion, and the locking end is inclined. It is movable along the upward slope of the surface in the direction of insertion of the card and the direction crossing the longitudinal direction of the slider, and has an inclination angle with respect to the flat bottom surface of the locking portion and from the flat bottom surface. The loop groove having the inclined surface that is inclined upward toward the upper end side of the stepped surface is in the housing forming the card insertion space, and the insertion direction of the card in the side of the card insertion space The slider is formed to be slidable along the card, and the slider is pushed by the card inserted into the card insertion space from the standby position to the pushing position corresponding to the card setting position. When the slider, which is elastically urged in the card ejection direction, is pushed against the elastic force by the card from the pushing position by pressing the card in the locked state. The movement from the flat bottom surface of the locking portion by the locking end to the inclined surface having an inclination angle with respect to the flat bottom surface is started, and the locking end is formed in the escape path The structure that it is movable along the ascending slope of the inclined surface is added.

In this way, the slider is elongated in the card insertion direction and is slidable on the side of the card insertion space, and the direction of the escape path intersects the longitudinal direction of the slider. , the bottom surface of the escape passage, located between the flat bottom and the stepped surface of the locking portion, Chi lifting the inclination angle with respect to the flat bottom surface of the locking portion, or one the latch A spring provided with an inclined surface which is inclined upward from the bottom surface side of the portion toward the upper end side of the stepped surface separately from the flat bottom surface of the locking portion, and the locking end is provided in the housing The slider is provided with an elastic piece for half-locking the card inserted into the card insertion space. The spring piece and the elastic piece are pressed against the bottom surface of the escape path by one piece. Part is the slider It is elongated in the longitudinal direction, and the direction of the upward slope of the inclined surface is a direction intersecting with the longitudinal direction of the slider, the spring piece portion and the elastic piece portion, and the locking end is inclined. It is movable along the upward slope of the surface in the direction of insertion of the card and the direction crossing the longitudinal direction of the slider, and has an inclination angle with respect to the flat bottom surface of the locking portion and from the flat bottom surface. The loop groove having the inclined surface that is inclined upward toward the upper end side of the stepped surface is in the housing forming the card insertion space, and the insertion direction of the card in the side of the card insertion space The slider is formed so as to be slidable along the slot, and the slider is pushed by the card inserted into the card insertion space to move from the standby position to the pushing position corresponding to the card setting position. By pressing the card in a state where it is pushed in and locked, when the slider that is elastically urged in the card ejection direction is pushed against the elastic force from the pushing position by the card, The movement from the flat bottom surface of the locking portion by the locking end to the inclined surface having an inclination angle with respect to the flat bottom surface is started, and the locking end is formed in the escape path. If a configuration is added that allows movement along the upward slope of the inclined surface, the locking end of the locking pin moves from the locking position with the locking portion to the escape path and moves to the beginning of the return path. When moving, since the inclined surface of the upward slope presses against the inclined surface and gives resistance (movement resistance) to the locking end, the locking end returns from the above-mentioned locking point due to the reaction of a drop impact or the like. It becomes difficult to escape to the beginning. As a result, a situation in which the locking end is released from the locking portion and the slider is unlocked due to dropping or the like is less likely to occur, and the card positioned at the card setting position is accidentally ejected. It becomes difficult to happen.

  In the present invention, even if the groove depth of the loop groove is formed at a depth equivalent to the return path start portion at a position where the locking end is engaged with the locking portion, It may be formed deeper than the return path start portion at the locking portion with the locking portion. Of these, the groove depth of the loop groove at the above-mentioned locking portion is set to the same depth as the return path start portion, and the groove depth of the loop groove at the locking portion a as described in FIG. Compared with the one that is shallower than the return path start portion 23a, the engagement width of the engagement end 41 with respect to the engagement portion 24 is increased, so that it is less likely that the engagement end 41 gets over the engagement portion 24. As a result, the stability of the locked state at the pushing position of the slider is improved. Further, when the groove depth of the loop groove is formed at the same depth at the locking point a and the return path start portion 23a, the locking point a is the deepest point in the conventional example described in FIG. 12 or FIG. In order to be equivalent to the start portion 23 a, it is possible to reduce the depth of other portions of the loop groove 21. For this purpose, the cam body 20 is integrally formed with the slider 70 by reducing the depth of the loop groove 21. In this case, the slider 70 can be easily thinned. On the other hand, in the case where the depth of the loop groove at the locking portion is formed deeper than the starting part of the return path, the ascending slope of the inclined surface becomes larger than that in which the depth is equal. Therefore, the movement resistance on the inclined surface when the locking end moves along the escape path and moves to the return path start portion increases. For this reason, it is difficult for the locking end to escape from the locking position to the return path start portion due to the reaction of the drop impact, etc., and the locking end is released from the locking portion due to dropping or the like, and the slider is unlocked. The situation that the card positioned at the card setting position is accidentally ejected is less likely to occur.

  In the present invention, the upper end edge of the stepped surface is divided into one side edge along the bottom surface of the return path start portion and the other side edge of the descending slope from the end portion of the one side edge toward the root of the locking portion. At the same time, it is desirable that the inclined surface is divided into a one-side inclined surface having an upward slope toward the one-side edge and an other-side inclined surface having an upward gradient toward the other-side edge. Further, the bottom of the other inclined surface crosses the escape path, and the bottom of the one inclined surface is located on a stepped wall surface that faces the locking portion and forms the escape path. It is desirable. According to these inventions, when a single flat ascending slope is formed on the escape path, the ascending slope of the other inclined face is larger than that slope, so that the locking end moves on the escape path. The movement resistance on the other inclined surface when moving to the start of the return path increases, and the locking end does not easily escape from the above-mentioned locking point to the start of the return path due to the reaction of the drop impact. Due to this, the situation where the locking end is released from the locking portion and the slider is unlocked is less likely to occur, and the card positioned at the card setting position is not likely to be accidentally ejected. Become. The operation of these inventions will be described in more detail with reference to the following embodiment.

  In the present invention, the housing includes a body and a sheet metal cover attached to the body, and a spring piece formed by inwardly raising the cover is elastically contacted with the locking pin. Therefore, it is desirable that the locking end is elastically pressed against the bottom surface of the escape path. According to this, there is no need for an extra part for releasing the locking end and repressing the bottom of the road.

  According to the present invention, the operability of inserting a card is impaired although only a simple measure is taken to slightly change the configuration of the cam mechanism, specifically, the shape of the bottom surface of the cam body escape path. In this way, it is possible to prevent the card from being accidentally discharged due to a drop impact or the like.

  FIG. 1 is a schematic perspective view of a card connector according to an embodiment of the present invention. FIG. 2 is a partial view showing a state in which a card 100 is half-locked to a slider 70 at a standby position, with the cover 55 of the housing 50 omitted. FIG. 3 is a partially broken plan view in which the slider 70 is pushed into the pushing position by the card 100 with the cover 55 of the housing 50 omitted, and FIG. 4 is a first push on the card 100. FIG. 5 is a plan view of the slider 70, FIG. 6 is a perspective view of the main part of the cam body 20, and FIG. 7 is a cam. FIG. 8 is a cross-sectional view of a portion along the line VIII-VIII in FIG. 7, FIG. 9 is an explanatory view showing a connecting portion between the locking pin 40 and the body 51, and FIG. The perspective view which showed the shape of the surface 32, FIG. 11 is a deformation | transformation. Is a perspective view showing the shape of the inclined surface 32 by.

  As shown in FIG. 1, the card connector has a housing 50 including a body 51 made of a synthetic resin molded body and a sheet metal cover 55 attached to the body 51. A card insertion space including a card insertion slot (slot) formed by being surrounded by the body 51 and the cover 55 is formed. As shown in FIG. 2, a large number of contacts 57 are arranged side by side at the front end of the body 51, and these contacts 57 are inserted into the card insertion space and elastically contact the electrode of the card 100 that has reached the card setting position. Thus, electrical connection is made. Further, the body 51 is provided with a rib-like protrusion 50a to prevent erroneous insertion of the card. When the card 100 is inserted into the card insertion space in an appropriate posture as shown in FIG. 3 or FIG. When the card 100 is inserted into the card insertion space in an inverted position, the protrusion 50a hits the tip of the card 100 and the card 100 is erroneously inserted. Is to be prevented.

  As shown in FIGS. 2 to 4, a slider 70 is provided inside the housing 1, and this slider 70 is always urged rearward by a spring body 52 formed of a coil spring. The slider 70 is positioned at the standby position when the end hits the convex portion 53 at the rear end of the body 51. As shown in FIG. 5, the slider 70 has an inward projection 71 at the front end, and the front end of the card 100 inserted into the card insertion space of the housing 1 by the projection 71 as shown in FIG. The corner portion 110 is received. Further, the slider 70 is integrally formed with a cantilevered elastic piece 76 having a chevron engaging portion 75 at the tip.

  As shown in FIGS. 5 to 8, the cam mechanism 10 includes a cam body 20 and a locking pin 40 formed by bending a wire having a spring property into a low gate shape. While the body 20 is integrally formed with the slider 70 as shown in FIG. 5, the leg portion 42 on the rear end side of the locking pin 40 is provided on the convex portion 53 of the body 51 as shown in FIG. 9. The support hole 54 (see FIG. 2 or 3) is rotatably supported in a fitting state. The front end portion of the locking pin is formed as a locking end 41.

  The loop groove 21 of the cam body 20 is formed in substantially the same shape as that described with reference to FIG. That is, as shown in FIG. 6 or FIG. 7, in addition to the forward path 22 and the return path 23, a protruding locking portion 24 formed between them, an introduction path 25 from the forward path end portion 22a to the locking portion 24, An escape path 26 and the like from the locking part 24 to the return path start part 23a are provided. The loop groove 21 is formed in an elongated heart shape as a whole, and the introduction path 25 and the escape path 26 form a heart-shaped recess. When the locking end 41 of the locking pin 40 is fitted in the loop groove 21 and the slider 70 is positioned at the standby position, the locking end 41 is connected to the start of the forward path 22 as shown in FIG. It is located at an initial position that is a junction 27 with the end of the return path 23. Further, a spring piece portion 56 that is cut and raised inwardly on the cover 55 is overlapped with the lock pin 40, and the lock end 41 of the lock pin 40 is made to be in the loop groove 21 by the elasticity of the spring piece portion 56. It is constantly repressed on the bottom.

  With the above configuration, the front end corner portion 110 of the card 100 inserted into the card insertion space in an appropriate posture as shown in FIG. 2 has the angled engagement portion 75 of the slider 70 retracted to the standby position by the spring body 52. When it gets over and hits the protrusion 71 of the slider 70, the chevron engaging portion 75 is fitted into the recessed portion 120 provided in the card 100. This state is a half-locked state of the card 100. In this half-locked state, the card 100 is prevented from being freely pulled out by the engagement between the recessed portion 120 and the mountain-shaped engaging portion 75, and a certain amount of pulling force is applied to the card 100. When added, the card 100 gets over the angled engagement portion 75 and is pulled out.

  When the first push operation is performed on the card 100 from the state of FIG. 2, the cam body 20 is pushed by the card 100 against the biasing force A of the spring body 52 together with the slider 70. The locking end 41 moves from the joining point 27 of the loop groove 21 to the forward path 22 and reaches the forward path end 22a (the position of the slider 70 at this time is shown in FIG. 4), and the pushing force is released at that time. Then, the cam body 20 is pushed back together with the slider 70 by the urging force A, and the locking end 41 moves through the introduction path 25 and is locked to the locking portion 24 as shown in FIG. The position of the slider 70 is shown in FIG. Next, when the second push operation is performed on the card 100, the cam body 20 is pushed against the urging force A together with the slider 70, the locking end 41 moves along the escape path 26, and the return path start portion. When the pushing force is released at that time, the cam body 20 is pushed back by the urging force A, and the locking end 41 moves along the return path 23 and returns to the junction 27.

  Therefore, the card 100 is inserted into the card set position and ejected from the card set position by the push-push operation, and in the first push operation, the slider 70 is pushed from the standby position to the push position corresponding to the card set position. In addition, the locking end 41 is locked to the locking portion 24 and the slider 70 is locked at the pushing position, whereby the card 100 half-locked to the slider 70 is positioned at the card setting position and the card side These electrodes are in contact with contacts provided on the body 51 side and are electrically connected. On the other hand, in the second push operation, the locking end 41 moves along the escape path 26 and is disengaged from the locking portion 24, so that the locked state of the slider 70 is released, and then the locking end 41 passes through the return path 23. The card is then discharged by returning to the junction 27.

  As shown in FIG. 6 to FIG. 8 or FIG. 10, in this embodiment, a stepped surface 31 located on the bottom surface of the escape path 26 of the loop groove 21 of the cam body 20 is located at the boundary between the escape path 26 and the return path start portion 23a. An inclined surface 32 having an ascending slope toward the upper edge is provided. In this embodiment, as shown in FIG. 10, the upper end edge of the stepped surface 31 is parallel to the bottom surface of the horizontal return path starting portion 23 and the end of the one side edge 33 of the locking portion 24. The inclined surface 32 is divided into the other side edge 34 of the descending slope toward the root, and the inclined surface 32 has the one side inclined surface 32a of the ascending slope toward the one side edge 32 and the other side inclined surface 32b of the ascending slope toward the other side edge 34. It is divided into. Then, a bottom surface 32 b ′ of the other side inclined surface 32 b crosses the escape path 26, and a stepped wall surface 35 in which the bottom side 32 a ′ of the one side inclined surface 32 a forms the escape path 26 facing the locking portion 24. Is located.

  In this way, when the bottom surface of the escape path 26 is provided with the inclined surface 32 having an ascending slope toward the upper end edge of the stepped surface 31, the locking that is locked to the locking portion 24 as shown in FIG. 8. When the end 41 moves from the locking point a on the escape path 26 (see FIG. 6 or 10) and moves to the return path starting portion 23 a, the upward inclined surface 32 is biased by the spring piece 56. Movement resistance is given to the locking end 41 that slides by being pressed against the inclined surface 32. In addition, since the urging force A by the spring body 52 is acting on the slider 70, the locking end 41 is difficult to escape from the locking point a to the return path start portion 23a due to the reaction of the drop impact or the like. As a result, it is difficult for the locking end 41 to come off the locking portion 24 and the slider 70 to be unlocked. Therefore, a situation in which the card 100 that has been positioned at the card set position is accidentally discharged is less likely to occur.

  Further, in this embodiment, the groove depth of the loop groove 21 is formed deeper than the return path start portion 23a at the locking point a with the locking portion 24 of the locking end 41. In this regard, the groove depth of the loop groove 21 can be formed to a depth equivalent to that of the return path start portion 23a at the locking portion a where the locking end 41 is engaged with the locking portion 24. However, if the groove depth of the loop groove 21 at the locking point a is formed deeper than the return path start portion 23a, the one-side inclined surface 32a and the other side are compared with those having the same depth. Since the upward slope of each of the inclined surfaces 32a increases, the movement resistance on the inclined surfaces 32a and 32b when the locking end 41 moves along the escape path 26 and moves to the return path starting portion 23a increases. Therefore, it is difficult for the locking end 41 to escape from the locking location a to the return path start portion 23a due to the reaction of the drop impact or the like, and the locking end 41 is detached from the locking portion 24 due to dropping or the like, and the slider 70 is locked. The situation that the state is released is very unlikely to occur, and the situation where the card 100 that has been positioned at the card setting position is accidentally ejected is also unlikely to occur. Further, in the case where the groove depth of the loop groove 21 at the locking portion a is formed deeper than the return path starting portion 23a, the hooking width of the locking end 41 with respect to the locking portion 24 is increased. The situation of overcoming the locking portion 24 is less likely to occur, and as a result, the stability of the locked state at the pushing position of the slider is also improved. On the other hand, when the groove depth of the loop groove 21 is formed at the same depth at the locking point a and the return path start portion 23a, the locking point a is the most in the conventional example described in FIG. Since it is equivalent to the return path start portion 23a which is a deep part, the depth of the other part of the loop groove 21 can be made shallower. For this purpose, the cam body 20 is formed by reducing the depth of the loop groove 21. It is easy to reduce the thickness of the integrally formed slider 70.

  Furthermore, in this embodiment, the upper end edge of the stepped surface 31 has a one-side edge 33 parallel to the bottom surface of the horizontal return path start portion 23 and a downward gradient from the end portion of the one-side edge 33 toward the root of the locking portion 24. Dividing into the other side edge 34, the inclined surface 32 is divided into each other one side inclined surface 32a of the upward gradient toward them and the other side inclined surface 32b of the upward gradient toward the other side edge 34. On the other hand, as in the modification shown in FIG. 11, it is possible to form the inclined surface 32 having an upward slope toward the upper edge of the stepped surface 31 with a single flat surface. However, in the case of FIG. 10 in which the inclined surface 32 is divided into the one-side inclined surface 32a and the other-side inclined surface 32b, compared to the case of FIG. 11 in which the inclined surface 32 is formed by a single flat surface, the other side. The ascending slope of the inclined surface 32b becomes larger than that of the inclined surface 32 of FIG. 11, and therefore, the locking end 41 moves along the escape path 26 and moves to the return path starting portion 23a on the other inclined surface 32b. The movement resistance is increased, and the slider 70 is hardly unlocked due to a reaction of a drop impact or the like.

  Furthermore, the other side edge 34 of the upper end edge of the stepped surface 31 is inclined toward the root of the locking portion 24 as in the case of FIG. 10, or the stepped surface 31 of the stepped surface 31 is inclined as in the case of FIG. Even if the upper end edge is inclined toward the base of the locking portion 24, the locking end 41 can cause the stepped surface 31 to escape from the escape path 26, although the above-described movement resistance can be generated. The operation of moving over to the return path start portion 23a is facilitated smoothly, and abnormal noise is less likely to occur when the vehicle gets over.

In the above embodiment, the chevron engaging portion 75 for half locking the card 100 inserted into the card insertion space, showed cases were provided in the cantilevered elastic piece 76 which is integrally molded with the slider 70 However, it is also possible to bend the tip of a spring piece as another component attached to the slider into a chevron to form a chevron engaging part.

  1 to 13, the same or corresponding elements are denoted by the same reference numerals.

1 is a schematic perspective view of a card connector according to an embodiment of the present invention. It is the partially broken top view which showed the state by which the card | curd is half-locked to the slider of a standby position. It is the partially broken top view which showed the state in which the slider was pushed into the pushing position. It is a partially broken top view which showed the state which performed the 1st push operation. It is a top view of a slider. It is a perspective view of the principal part of a cam body. It is a top view of the principal part of a cam mechanism. It is sectional drawing of the part which follows the VIII-VIII line of FIG. It is explanatory drawing which showed the connection location of a locking pin and a body. It is the perspective view which showed the shape of the inclined surface. It is the perspective view which showed the shape of the inclined surface by a modification. It is the schematic perspective view which showed the cam body of the cam mechanism employ | adopted as the conventional card connector. It is a vertical side view of the principal part of the cam mechanism 10 provided with the cam body of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Cam mechanism 20 Cam body 21 Loop groove 22 Loop groove forward path 23 Loop groove return path 23a Return path start part 24 Locking part 26 Relief path 31 Stepped surface 32 Inclined surface 32a One side inclined surface 32a 'One side inclined surface 32b Other Side inclined surface 32b 'Bottom side of other side inclined surface 33 One side edge 34 Other side edge 35 Wall surface 40 Locking pin 41 Locking end 50 Housing 51 Body 55 Cover 56 Spring piece 70 Slider 100 Card

Claims (6)

Pressed by the card inserted into the card insertion space into the housing that forms the card insertion space, and is pushed from the standby position to the pushing position corresponding to the card setting position, and at the pushing position, the elastic force is applied in the card ejection direction. And a cam mechanism having a function of locking the slider at the pushing position and a function of releasing the locked state of the slider locked at the pushing position.
A loop in which the cam mechanism includes a locking pin attached to one side member of the housing and the slider, and a locking member fitted to the other side member so that a locking end of the locking pin is relatively displaceable. A cam body having a groove,
The loop groove of the cam body locks the slider at the push-in position corresponding to the card setting position by locking the locking end via the forward path of the loop groove; and When the slider is pushed in from the pushing position, the locking end is released from the locking position with the locking portion to the return path start portion of the loop groove, and when the slider is retracted, it is released to the return path start portion. And a stepped surface for stopping the locking end in the return path by locking the locking end and preventing the reverse movement, and the locking end is elastically pressed against the bottom surface of the escape path. Card connector
The slider is elongated in the card insertion direction and is slidable on the side of the card insertion space, and the direction of the escape path intersects with the longitudinal direction of the slider, and the escape path The bottom surface of the locking portion is provided with an inclined surface having an inclination angle with respect to the bottom surface of the locking portion and an upward slope from the bottom surface side of the locking portion toward the upper end side of the stepped surface. A toe is pressed toward the bottom surface of the escape path by a spring piece provided on the housing, and an elastic piece for half-locking the card inserted into the card insertion space is provided on the slider. The spring piece portion and the elastic piece portion are elongated in the longitudinal direction of the slider, and the upward slope direction of the inclined surface is the slider, the spring piece portion, and the elastic piece. The locking end is movable along the upward slope of the inclined surface in the direction of insertion of the card and the direction of crossing the longitudinal direction of the slider. Card connector characterized by.   The card connector according to claim 1, wherein a groove depth of the loop groove is formed to a depth equivalent to that of the return path start portion at a position where the locking end is locked with the locking portion.   The card connector according to claim 1, wherein a groove depth of the loop groove is formed deeper than the return path start portion at a position where the locking end is locked with the locking portion.   The upper edge of the stepped surface is divided into one side edge along the bottom surface of the return path start portion and the other side edge of a downward gradient from the end portion of the one side edge toward the base of the locking portion, and the inclination The card connector according to any one of claims 1 to 3, wherein the surface is divided into one side inclined surface having an upward slope toward the one side edge and another side inclined surface having an upward slope toward the other side edge. .   The bottom side of the other side inclined surface crosses the escape path, and the bottom side of the one side inclined surface is located on a stepped wall surface facing the locking portion and forming the escape path. 4. The card connector described in 4.   The housing has a body and a sheet metal cover attached to the body, and a spring piece formed by inwardly raising the cover is elastically contacted with the locking pin. The card connector according to any one of claims 1 to 4, wherein an end is elastically pressed against a bottom surface of the escape path.

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