JP5088651B2 - Push-lock memory card connector - Google Patents

Description

  The present invention uses a push-on / push-off mechanism (also known as an “alternate operation mechanism”) to insert a memory card into the memory card insertion space of the housing and push the memory card into a predetermined pushing position, and the pushing operation is performed again. The present invention relates to a push-lock type memory card connector that is released after the detent is released.

  Conventional push-lock memory card connectors have a slider that slides back and forth in the memory card insertion / ejection direction, a return spring that biases the slider in the memory card ejection direction, and a slider that is pushed together with the memory card. Is provided with a push-on / push-off mechanism that detents the slider at the predetermined push-in position and releases the detent when the push-in operation is performed again. By inserting the memory card and pushing the slider, the slider is pushed At the same time, the memory card is locked at the position where the slider is pushed, and the memory card is locked to prevent the memory card from being pulled out. A memory card having a structure in which the memory card is pushed back and the engagement with the slider is released and can be removed (for example, Patent Document 1, FIG. 4, Patent Document 2, FIG. 6) is known. .

  A so-called heart cam mechanism is used as a push-on / push-off mechanism in this type of memory card connector.

  In this type of conventional push-lock type memory card connector, as shown in FIGS. 10 to 12, a housing 63 is formed by a molded housing body 61 and a metal cover 62 also serving as a shield, and the housing 63 is formed in the housing. The memory card insertion space 64 is formed by opening the opening at the front end surface of the housing.

  In the housing 63, a slider accommodating portion is provided at one side of the memory card insertion space 64, and a slider 66 is accommodated therein so as to be movable in the memory card insertion / removal direction.

  The slider 66 has a memory card stopper portion 66a for receiving the tip of the memory card A to be inserted into the memory card insertion space 64 on the side surface of the tip portion in the pushing direction, and the slider 66 is pushed on the tip surface in the pushing direction. A return spring tip receiving portion 66b that receives the tip of the return spring that pushes back 66 is provided. A return spring 14 made up of a coil spring is interposed in a desired stored state between the return spring tip receiving portion 66b and a return spring receiving portion 67 formed at the deepest rising portion of the slider accommodating portion.

  In this conventional example, a memory card locking claw 69 protrudes from the side surface of the slider 66 on the stopper portion 66a side at a predetermined distance from the stopper portion 66a. In the initial insertion state, the memory card is temporarily fixed, that is, a half-locked state in which the memory card can be pulled out.

  A guide groove 70 is provided on the upper surface of the slider 66. The guide groove 70 and a guide pin 71 described later constitute a heart cam mechanism.

  The guide groove 70 is provided with a forward path guide portion 70A and a return path guide portion 70B on both side surfaces of a heart-shaped heart cam 72, and both end portions of the both guide portions 70A and 70B are connected to each other. Yes.

  The guide pin 71 is formed by bending a metal wire, and an in-groove sliding portion 71b is integrally provided on the distal end side of the linear rotation arm 71a in a shape bent 90 degrees, and the rotation arm 71a. The pivot portion 71c is integrally provided in a shape that is bent at 90 degrees at the base end portion of the shaft, and the pivot portion 71c is inserted into the bearing hole of the housing body 61 to slide in the groove 71b. Is inserted into the guide groove 70.

  In the heart cam mechanism constituted by the guide groove 70 and the guide pin 71, when the slider 66 is pushed from the initial state to a predetermined depth and the pushing is released, the in-groove sliding portion 71b of the guide pin 71 is the heart cam of the id groove 70. 72, the slider 66 is de-returned, and the engagement is released by pushing again, and by releasing the pushing, the in-groove sliding portion 71b of the guide pin 71 is disengaged from the heart cam 72 portion, The slider 66 is returned to the initial state by the return spring 14.

The mechanism in which the guide pin 71 circulates in the guide groove 70 by repeating the pushing operation of the slider 66 is:
Although not shown in detail in the drawing, the memory card locking claw 69 is fixed to the tip of a cantilever spring whose one end is fixed to the slider 66 and is always biased so as to be in a protruding state. When the slider 66 is not inserted into the memory card, the claw 69 can be pushed into the slider 66, and the slider 66 is pushed together with the card in the pushing direction to push into the slider 66. (For example, Patent Document 1 to FIG. 4, Patent Document 2 to FIG. 1, FIG. 4, Patent Document 3 to FIG. 5 and FIG. 6).
JP 2003-317861 A JP 2005-294203 A JP 2001-118633 A

  In addition to the push-on / push-off mechanism consisting of the heart cam, guide pin, and spring for biasing the guide pin, the conventional push-lock type memory card connector described above can be pulled out in the initial insertion state of the card. A member constituting a half-locking / locking mechanism for constituting a half-locked state in which the card is temporarily fixed and a locked state in which, when the slider is pushed together with the card from the half-locked state, the card cannot be removed from the slider. Was necessary.

  For this reason, there are problems that the number of parts is increased, and that a technique for manufacturing and assembling is required due to a demand for miniaturization, resulting in high costs.

  In the conventional heart cam mechanism, as the mechanism for circulating the guide pin 71 in the guide groove 70 by repeating the pushing operation of the slider 66, a number of steps are formed on the inner bottom surface of the guide groove 70, and The guide pin 71 circulates only in one direction without reversing by urging it with a spring so that the tip of the guide pin 71 is always in pressure contact with the inner bottom surface. As the push lock type memory card connector is remarkably reduced in size and thickness, the heart cam mechanism must be reduced in size, so that the step on the inner bottom surface of the pin guide cannot be made large.

  For this reason, there is a problem that the step is scraped off early due to wear caused by the tip of the guide pin 71 always slidingly contacting the inner bottom surface of the guide groove, and the fall of the guide pin is prevented from coming back.

  In view of such a conventional problem, the present invention reduces the total number of parts including the push-on / push-off mechanism and the card lock / half-lock mechanism, and the push-back preventing effect of the guide pin is not lost. An object of the present invention is to provide a push-lock card connector capable of extending the life of an on / push-off mechanism.

  The feature of the push lock type card connector according to claim 1 for solving the conventional problems as described above and achieving an intended purpose is to insert a card inserted into a card insertion space of a card connector housing. A slider that reciprocally slides in the ejection direction; a return spring that biases the slider in the card ejection direction; and the slider is pushed together with the card to stop the slider from returning at the predetermined pushing position. A push-on / push-off mechanism comprising a pin guide for releasing the detent by a push-in operation and a guide pin sliding in the pin guide, and an edge of the slider on the card insertion space side and the card Engage the card with the side edge of the slider by a concave-convex fitting structure between them The slider is pivotable in a direction in which the engagement uneven portion is released by being pushed by the card insertion / removal at a standby position before the pushing operation, and together with the card. In the pushed-in position, the rotation becomes impossible and the engagement uneven portion is prevented from coming off, and the guide pin constituting the push-on / push-off mechanism intersects with the moving-in / out operation direction of the slider, The urging means and the slider, which are integrally provided at the tip of a spring arm that urges the engaging concavo-convex portion in a direction opposite to the direction in which the engagement irregularity is prevented, and constitutes a push-on / push-off mechanism for the guide pin. The push-lock card connector is characterized in that it is also used as a biasing means toward the rotational movement return side.

  According to a second aspect of the present invention, in addition to the structure of the first aspect, a slider guide groove for guiding the slider is provided on the bottom surface of the housing, and the slider guide groove is provided at the bottom of the slider. A guide portion that is fitted and guided is provided, and the slider guide groove is formed by a pair of rising walls parallel to each other, and one of the guide protrusions is cut at a portion corresponding to the standby position of the slider. A play space is formed by providing a missing portion having a cut-out shape, and when the slider is in the standby position, the engagement uneven portion is formed by being pushed by the card insertion and removal so that the slider can move to the play space side. The guide portion at the bottom of the slider is moved at a position where it is pushed a predetermined length from the standby position. Serial is restricted by the guide groove by lateral movement is prevented in that set to be unrotatable.

  According to a third aspect of the present invention, in addition to the configuration of any one of the first and second aspects, the spring arm is configured to include a portion in which one end side of the helical spring is linearly extended, A portion of the helical spring excluding the linear spring portion at one end thereof is fixed to the slider, and a pin guide constituting a push-on / push-off mechanism is provided on the bottom surface of the housing.

According to a fourth aspect of the present invention, in addition to the structure of any one of the first to third aspects, the push-on / push-off mechanism has a pin guide on either the housing or the slider. The other side is provided with a guide pin, and the spring arm is installed so as to be urged by a side surface of the guide pin in a direction of pressing a sliding contact surface comprising a rising wall surface constituting the pin guide. The guide pin is provided with an outward path guide portion that slides when the slider is pushed in the pushing direction, and a return path guide portion that slides when the slider is returned.
Between one end of the forward path guide portion and the backward path guide portion, a reverse return preventing mechanism is provided that does not return in the reverse direction after the guide pin passes from one side to the other side against the biasing force of the spring arm. Thus, the guide pin circulates in one direction along the pin guide by the pushing / returning operation of the slider, and the guide pin is locked against the urging force of the return spring in the middle of the forward guide portion. And a guide pin engaging portion for preventing the slider from returning.

  According to a fifth aspect of the present invention, in addition to the configuration of the fourth aspect, the reversion preventing mechanism is configured such that the guide pin has a bottom surface facing the tip end surface of the guide pin at a boundary portion between the forward path guide portion and the backward path guide portion. A step for preventing reversal by lowering the traveling direction side of the pin, and a downward urging means for urging the guide pin at the position of the step at a height lower than the stepped side. Item 5. A push-lock type memory card connector according to item 4.

  According to a sixth aspect of the present invention, in addition to the configuration of the fourth aspect, the reverse return preventing mechanism is configured by a flap valve type door that opens only in the direction of travel of the guide pin.

  The push-lock card connector according to the present invention includes a push-on / push-off mechanism including a slider, a pin guide, and a guide pin that slides in the groove, and the edge of the slider on the card insertion space side and the card The slider side edge is provided with an engaging uneven portion that engages with the card by an uneven fitting structure therebetween, and the slider is pushed by the card insertion / removal at a standby position before the pushing operation. Accordingly, the engaging irregularities can be rotated in a direction in which the engaging irregularities are removed, and at the position where the engaging irregularities are pushed together with the card, the rotation is impossible and the engaging irregularities are prevented from coming off. The guide pin that constitutes the on / push-off mechanism intersects with the direction of movement of the slider, and the engagement uneven portion is prevented from coming off. Is integrally provided at the tip of a spring arm that urges in the opposite direction, and urges the spring arm to constitute a push-on / push-off mechanism with respect to the guide pin and the urging of the slider to the return side of the rotational operation. By combining the means, that is, the spring for card half-locking, the number of parts is reduced as compared with the prior art, and the work for assembling the guide pin is facilitated, thereby reducing the cost.

  In the present invention, the bottom surface of the housing is provided with a slider guide groove that guides the slider, and the bottom portion of the slider is provided with a guide portion that is fitted and guided in the slider guide groove. The slider guide groove is formed by a pair of rising walls parallel to each other, and a play space is provided by providing a missing portion having a shape in which one guide protrusion is cut out at a portion corresponding to the standby position of the slider. When the slider is in the standby position, the slider can be moved to the play space side so that the engaging unevenness portion is rotated by being pushed by the card insertion / extraction, and the slider is rotated. At a position where the slider is pushed in a predetermined length from the standby position, the guide portion at the bottom of the slider is restricted by the guide groove and moved in the lateral direction. There By was made to be non-rotatable by being blocked, the half lock positive locking mechanism of the card is obtained with a simpler structure.

  Further, in the present invention, the spring arm is configured with a portion in which one end side of the helical spring is linearly extended, and the helical spring is fixed to the slider except for the linear spring portion on one end side. Since the pin guide constituting the push-on / push-off mechanism is provided on the bottom surface of the housing, the spring and the guide pin can be formed as one part, the number of parts is reduced and the shape as one part is increased. Manufacturing and automatic assembly become easy.

  In the present invention, the push-on / push-off mechanism includes a pin guide on one side of the housing or the slider and a guide pin on the other side, and the spring arm constitutes the pin guide by a side surface of the guide pin. Installed so as to urge the sliding contact surface formed of the rising wall surface to be pressed in the direction of pressing, and the guide pin slides when the slider is operated in the pushing direction of the slider; A return path guide section that slides during the return operation, and a guide pin is provided between one end of the forward path guide section and the return path guide section from one side to the other side against the urging force of the spring arm. After passing, the guide pin is moved along the pin guide by the pushing-in / returning operation of the slider by providing a back-reverse prevention mechanism that does not return in the reverse direction. In the middle of the forward path guide portion, a slider detent guide pin engaging portion is provided in the middle of the forward path guide portion, and the guide pin is locked against the urging force of the return spring. As a result, the side surface of the guide pin moves while pressing the rising sliding contact surface constituting the pin guide. Wear is reduced and durability can be maintained even when miniaturized.

  In the present invention, the step for preventing reversion, wherein the step for preventing reversion is made lower in the traveling direction side of the guide pin to the bottom surface where the tip surface of the guide pin faces at the boundary portion between the forward path guide portion and the backward path guide portion, A flap valve configured to have downward biasing means for biasing the guide pin at the step position at the tip thereof to a height lower than the high side of the step; and a flap valve that opens only in the traveling direction side of the guide pin By configuring with a formula door, a pin guide with a simple structure and reliable operation can be configured.

  In the present invention, the spring arm is configured to have a portion in which one end side of the helical spring is linearly extended, the portion excluding the linear spring portion on the one end side is fixed to the slider, and the pusher is pushed. By providing the pin guide constituting the on / push-off mechanism on the bottom surface of the housing, it is possible to effectively use a narrow space when downsized.

  Hereinafter, the best mode for carrying out a push-lock type card connector according to the present invention will be described in detail with reference to the embodiments shown in the drawings.

  1 to 6 show an embodiment of a push-lock card connector according to the present invention. In the push-lock type card connector of this example, the housing 10, the card A inserted into the card insertion space 11 of the housing 10, the slider 13 reciprocatingly slided in the insertion / ejection direction in the housing 10, and the slider 13 as the card A return spring 14 for biasing in the discharging direction of A and a pin guide for pushing the slider 13 together with the card A to detent the slider 13 at the predetermined pushing position and releasing the detent by the pushing operation again. And a push-on / push-off mechanism including a guide pin 16 that slides on a sliding contact surface of the pin guide 15.

  The housing 10 includes a housing main body 10A molded by a synthetic resin material and a shield cover 10B press-molded by a metal material fitted on the upper surface thereof.

  The slider 13 has, on the bottom of the main body 20, a guide portion 21 having inner (parallel side of the card insertion space, the same hereinafter) and outer (housing side edge, same hereinafter) slide surfaces 21 a and 21 b whose both side surfaces are parallel. 2) and is fitted into a slider guide groove 22 between a pair of parallel inner and outer guide protrusions 22a and 22b raised from the bottom surface of the housing. Are now regulated.

  A return spring receiving portion 23 is integrally projected on the outside of the front end portion of the main body portion 20 of the slider 13 so as to straddle the outer guide protrusion 22b. The return spring receiving portion 23 and the outer wall of the housing 10 are connected to each other. A return spring 14 comprising a coil spring is interposed between the rear rising wall 10Aa and the slider 13 so that the slider 13 is always on the front end side of the housing 10 (the end portion on the card insertion space opening side). Side, the same shall apply hereinafter). In the figure, reference numerals 14a and 14b denote return spring end fitting projections.

  A slider stopper 24 protrudes at the front end of the bottom surface of the housing, and a position where the base end of the main body 20 of the slider 13, that is, the end on the return direction side is in contact with the slider stopper 24 is set as a standby position, and no card is inserted. Sometimes, the return spring 14 is biased so as to return to the return position.

  A card stopper portion 25 having an inverted L-shaped arrangement extending over the inner guide protrusion 22a and projecting into the card insertion space is integrally formed at the tip of the slider main body portion 20, that is, the end portion in the pushing direction of the slider. The leading end of the card inserted into the card insertion space through the opening of the card insertion space comes into contact with the card stopper 25.

  Further, on the inner side surface of the main body portion 20 of the slider, a card locking claw 26a that protrudes to the side edge portion of the card insertion space is integrally provided so as to straddle the upper side of the inner guide protrusion 22a. The card engaging claws 26a and the concave portions 26b at the side edges of the card A, which will be described later, constitute engaging concaves and convexes constituting the concave-convex fitting structure.

  The slider 13 is urged in the horizontal inner direction by a spring arm 40b described later on the side where the card locking claw 26a protrudes into the card insertion space 11. That is, due to the elasticity of the spring arm 40b, the inner slide surface 21a of the guide portion 21 is biased in a direction in which it slides on the inner guide protrusion 22a.

Of the two guide protrusions 22a and 22b, the inner guide protrusion 22a is provided over the entire moving length of the slider guide portion 21 in the pushing / returning direction operation. On the other hand, the length between the base end of the other outer guide protrusion 22b, that is, the end of the housing on the card insertion space opening side, and the slider stopper 24 is slightly shorter than the inner guide protrusion 22a. A missing portion is formed, and the outside thereof is a play space 27.
When the slider 13 is at the standby position, that is, at the position moved to the most return direction side by the return spring, the outer slide surface 21b of the guide portion 21 is at the missing portion 27 position. When the locking claw 26a is pushed laterally outward, that is, toward the play space 27, the distal end portion of the outer slide surface 21a of the guide portion 21 comes into contact with the proximal end side of the outer guide protrusion 22b, and the contact position is changed. The slider 13 can be rotated to the missing portion 27 side as a rotation center o (shown in FIGS. 4 and 5).

  As a result, the card latching claw 26a can move outward in the horizontal direction by a length retracting outward from the card insertion space 11. When the slider 13 is pushed from the standby position, the inner and outer slide surfaces 21a and 21b are regulated by the both guide protrusions 22a and 22b, and the card locking claw 26a cannot be retracted.

  The guide pin 16 is formed by bending the free end side of the spring arm 40b on one end side of the helical spring 40, which is made of a linear spring supported by the slider 13, with its tip facing the bottom surface of the housing. Then, it is inserted into the pin guide 15.

  The helical spring 40 serves as both an urging means for constituting a push-on / push-off mechanism and an urging means for returning the slider to the rotating operation. The helical spring 40 includes a coiled helical winding portion 40a, a spring arm 40b whose one end is extended linearly, and a fixed arm 40c whose other end is extended linearly. The winding portion 40b is mounted in a state of being wound around the upright support column 13a raised on the upper surface of the slider 13, and a fixed arm 40c is formed on the slider upper surface so that the slider is pushed and returned in the operating direction. It is fixed by press-fitting into the groove 13b. Protrusions 13c for holding a fixed arm are alternately provided inside the fixed groove 13b.

  The spring arm 40b is turned in a U-shape from the fixed arm 40c via the coiled portion 40b, and is stored so that a biasing force in the direction in which the ends of both the arms 40b and 40c are opened works. As a result, the forward and return path guide portions 30, 31 in which the guide pin 16 at the tip of the spring arm 40 b constitutes the pin guide 15 on the horizontal direction intersecting the direction in which the slider 13 is pushed and returned, that is, the tip of the spring arm 40 b. Is biased outward in a horizontal direction. By this urging force, the side surface of the guide pin 16 is pressed against the pin guide 15 and the slider 13 is urged sideways by the reaction force.

  The forward path guide portion 30 and the backward path guide portion 31 are provided toward the pushing / returning direction side of the slider 13. Both the guide portions 30 and 31 are formed by rising walls formed by rising from the housing bottom surface 10a, and the rising wall surfaces constitute guide pin sliding contact surfaces. The side surface of the guide pin 16 is pressed against the sliding contact surface by the biasing force of the spring arm 40a.

  Further, due to the reaction force generated when the guide pin 16 at the tip of the spring arm 40b contacts the forward and backward guide portions 30 and 31, the inner slide surface 21a of the slider 13 is attached in a direction in which it presses against the inner guide protrusion 22a. Power is to be given.

  The pin guide 15 constituting the push-on / push-off mechanism is installed upward on the housing bottom surface 10a outside the outer guide protrusion 22b, and the guide pin 16 slides when the slider 13 is operated in the pushing direction side. 30 and a return path guide portion 31 on which the guide pin 16 is slid when the slider 13 is operated in the discharge direction. The guide pin 16 is in sliding contact with the guide portions 30 and 31 made of the rising wall surface, It is structured such that it is guided so as to move from one side to the other side at both end portions and circulates through both guide portions 30 and 31.

  The pin guide 15 composed of the forward path guide portion 30 and the backward path guide portion 31 has a standby guide pin stop position a (shown in FIGS. 1 and 6) where the guide pin 16 is positioned when the slider 13 is in the standby position. ), When the slider 13 is in the detented position at the pushed-in position, that is, when the guide pin 16 is engaged with the guide pin engaging portion 41, the guide pin stop position c when the detent is engaged, and the slider 13 is detented. There is a guide pin stop position d when the guide pin 16 is pushed in from the state position and stops after the guide pin 16 passes through the back-reverse prevention mechanism. The guide pin 16 at the guide pin stop position d is returned through the return path guide portion 31 and enters the forward path guide portion 30 to guide when waiting. So that the return to the down stop position a.

  The forward path guide portion 30 has a stepped guide pin mechanism that stops the slider 13 at that position when the guide pin 16 is pushed by the urging force of the spring arm 40b, slightly forward of the end of the slider 13 in the pushing direction. A stepped portion 41 is formed, and a guide pin engaging recess 41a is formed on the surface thereof. An inclined portion 42 is formed at a position before reaching the guide pin engaging step portion 41, and the guide pin 16 is pushed in while being guided inward along the inclined portion 42 against the urging force of the spring arm 40 b. When the guide pin is engaged from the position of the guide pin engagement step 41 to the back side, it is moved to the back side of the guide pin engagement step 41 by the biasing force of the spring arm 40b.

  A partition wall 47 is provided on the back side of the distal end of the guide pin engaging step 41 with a space slightly larger than the thickness of the guide pin 16 between the engaging step 47 and the inclined portion 42 together with the slider 13. The guide pin 16 that is pushed in along the guide line abuts against the partition wall 47 and reaches the guide pin position b at the end of push-on operation in a state where further pushing is prevented. Thereafter, by releasing the pushing force on the slider 13, the guide pin 16 is guided to the proximal end side of the engagement step portion 41, that is, the end portion side of the urging direction by the spring arm 40b, and the engagement step The guide pin engaging recess 41a formed in the portion 41 enters and the slider 13 is prevented from returning.

  A guide portion 43 that gradually approaches the return path guide portion side is further formed on the further forward movement side of the guide pin engaging recess 41a, and the return path guide portion 31 is connected to the further forward movement side.

  A reverse return preventing mechanism is provided at a position connected to the return path guide portion 31 at the tip of the forward path guide portion 30. The reverse prevention mechanism includes a stepped portion 45 in which the bottom surface of the guide pin passage position on the forward path guide portion 30 side is raised, and the tip of the guide pin 16 is located at the highest side of the stepped portion 45, that is, on the bottom surface of the forward path guide portion 30. And a spring member 46 that is a biasing means that biases the height lower than the height. In this embodiment, the bottom surface of the guide portion 43 facing the tip end surface of the guide pin is formed as an inclined surface 43a which is gradually raised, thereby forming a step of the step portion 45.

  Further, the spring member 46 is formed integrally with the shield cover 10B by making a U-shaped cut into the shield cover 10B constituting the housing 10 as shown in FIG. The spring material 46 may utilize the elasticity of the spring arm 40b integrated with the guide pin 16.

  Then, when the guide pin 16 goes from the forward path guide portion 30 side to the return path guide portion 31, the tip of the guide pin 16 moves while ascending while pushing the inclined surface 43 a which is the bottom surface where the guide pin tip surface of the guide portion 43 faces. Then, the side of the guide pin 16 hits the rising wall portion 45a of the step portion 45 on the outward path guide portion 30 side by dropping into the lower surface on the return path guide portion 31 side at the step portion 45, and the inside of the outward path guide portion 30 Return is prevented.

  Further, the pin return operation end side of the return path guide portion 31 (the lower end of the return path guide portion 31 in FIG. 1) is shorter than the forward path guide portion 30, whereby the guide pin 16 is pressed against the return path guide portion 31 to perform the return operation. When the terminal part is disengaged from the return path guide part 31, it is brought into contact with the forward path guide part 30 by the urging force of the spring arm 40b.

  Next, the operation of the guide pin 16 in the pin guide 15 constituting the push-on / push-off mechanism in such a push-lock type card connector will be described with reference to FIG. 1 and FIGS. This will be described together with the operation.

  Initially, the guide pin 16 is in pressure contact with the forward path guide portion 30 and is positioned at the standby guide pin stop position a at the forward movement start end (state in FIG. 1). At this position, the slider 13 is in the standby position by the biasing force of the return spring 14, and the base end of the slider main body 20 is in contact with the slider stopper 24 of the housing main body 10A and is in standby.

  When the card A is inserted into the card insertion space 11 of the housing 10, the card locking claw 26a of the slider 13 is pushed rightward in FIG. As a result, as shown in FIG. 4, the slider 13 is rotated outward (counterclockwise in the figure) around the base end of the outer guide protrusion 22b, and the card locking claw 26a is retracted, and the card A Is inserted. At this time, the spring arm 40b is rotated in the accumulating direction.

  When the card A is inserted in this way and the concave portion 26b on the side surface of the card A reaches the position of the card locking claw 26a, the slider 13 is moved by the spring arm 40b on the side where the card locking claw 26a presses the card side edge. Since the card engagement claw 26a enters into the recess 26b because it is biased, the slider 13 returns to the angle at the original standby position, and the card A is temporarily fixed to the slider 13, so-called half-locked state. It becomes. In this state, the card A can be removed.

  At this time, the tip of the card A comes into contact with the card stopper portion 25 of the slider 13. Further, in this state, the guide pin 16 is in pressure contact with the forward path guide portion 30 by the urging force of the spring arm 40 and is at the standby guide pin stop position a in FIG.

  When the card A is further pushed in this state, the card stopper portion 25 is pushed, and the slider 13 starts to slide together with the card A. When the slider 13 is pushed in from the standby position, the guide portion 21 is further pushed between the inner and outer guide protrusions 22a and 22b, whereby the slider 13 becomes non-rotatable, and the card A has the card stopper portion 25 and the card engagement portion. A relative movement with respect to the slider is prevented by the pawl 26a.

  When the slider 13 is further pushed in this state, the guide pin 16 moves while being pressed against the forward guide portion 30 and passes through the position of the inclined portion 42 before reaching the guide pin engaging portion 41. When reaching the far side from 41, it reaches the guide pin position b at the end of the push-on operation where it abuts against the partition wall 47 and is prevented from being pushed further. Thereafter, by releasing the pushing force on the slider 13, the guide pin 16 is guided to the proximal end side of the engagement step portion 41, that is, the end portion side of the urging direction by the spring arm 40b, and the engagement step The guide pin engaging recess 41a formed in the portion 41 enters and stops.

  When the pushing-in of the card A is stopped in this state, the slider 13 is moved in the return direction by the return spring 14, whereby the guide pin 16 is fitted in the recess 41 a on the back side surface of the guide pin engaging step 41. To the guide pin stop position c. As a result, the return operation of the guide pin 16 is prevented, and the card A stops in a state where an electrode (not shown) of the card A and a contact (not shown) of the card connector are in contact at a predetermined pushing position.

  By operating the card A in the pushing direction again from this state, the guide pin 16 moves toward the return path guide part 31 while pressing the guide part 43 of the forward path side guide part 30, passes through the step part 45, and returns. When the guide portion 31 enters the guide portion 31 and stops when the slider 13 is pushed most, the guide pin 13 stops at the return operation start end portion of the return path guide portion 31, that is, the guide pin stop position d at the time of the most push. The guide pin 16 is prevented from returning to the forward path guide part 30 side once it has entered the backward path guide part 31.

  Next, by releasing the pushing operation force on the card A, the slider 13 returns to the original standby position even when pushed by the return spring 14. At this time, the guide pin 16 slides in pressure contact with the return path guide portion 31. When the guide pin 16 is disengaged from the return path guide portion 31 slightly before the standby position, the guide pin 16 is moved to the forward path guide portion 30 side by the biasing force of the spring arm 40. Return to the standby guide pin stop position a.

  When the slider 13 returns to the standby position, the slider 13 can be turned to the play space side. When the card A is pulled out, the card locking claw 26a is detached from the concave portion 26b of the card, and the card is removed. It is done.

In the above embodiment, the inclined surface 43a is provided on the bottom surface of the pin passage position on the distal end side of the forward path guide portion 30, but the present invention is not limited to this, and the bottom surface of the pin passage position of the backward path guide portion 31 is defined as the forward path guide. The step portion 45 for preventing reversion may be formed by making it lower than the portion 30 side. In this way, the length of the return path guide portion 31 is somewhat long, and if the bottom surface is gradually raised and returned to the flat surface, the guide pin 16 can be cut off at the tip of the guide pin 16 rather than the one with a steep slope. Can be prevented. Furthermore, since the bottom surface and the tip of the guide pin 16 are in sliding contact, the card is prevented from popping out.
Further, the guide pin 16 is dropped into the return path guide portion 31 by being urged downward by the spring material 46 for pushing down. In addition, the guide pin 16 is inclined by the inclination in front of the step portion 45 for preventing the return. What is necessary is just to be urged so as to fall into the return path guide portion 31 by passing through the step portion 45 after being lifted elastically, and supporting the guide pin 16 in place of the spring material 46 for pushing down. The elasticity of the spring arm may be used. In this case, the guide pin 16 is elastically held at a position where the distal end of the guide pin 16 is not in contact with the pin passage position bottom surface of the return path guide portion 31 and lower than the forward path guide portion 30 facing the step portion 45. It can also be done.

  In the embodiment described above, a mechanism using a step on the bottom face where the tip end face of the guide pin faces is shown as a reverse prevention mechanism. In addition to this, the non-return door 50 is provided as in the second embodiment shown in FIGS. It may be used. In this example, a check door 50 which is a reverse prevention mechanism is installed at a position where the tip of the forward guide portion 30 is connected to the return guide portion 31. The non-return door 50 has a flap valve shape configured with a leaf spring. That is, one end of the non-return door 50 is embedded and fixed at the edge opposite to the guide pin pushing direction side at a position where the forward path guide portion 30 and the return path guide portion 31 are connected. The end side has a structure in which the edge portion of the opening on the guide pin pressing direction side is in contact with a stepped portion 51 having a shape recessed from the return path guide portion 31 side.

  When the guide pin 16 goes from the forward path guide portion 30 side to the return path guide portion 31, the guide pin 16 pushes the check door 50 to open the door, and the guide pin 16 moves into the return path guide portion 31. By moving and passing through the position of the non-return door 50, the non-return door 50 is closed by the elasticity of the leaf spring, and the guide pin 16 is prevented from returning into the forward path guide portion 30.

  Furthermore, in addition to the above, the pin guide may have a shape as shown in FIGS. In this example, on the back side of the inclined portion 42 of the forward path guide portion 30, a folding guide guide portion 55 having a downward semicircular shape is formed as the aforementioned collision wall. The folding guide part 55 is composed of a semicircular inner and outer inner wall surface 55c in plan view, the pin entrance 55a is on the rear end side of the inclined part 42, and the pin exit 55b is a guide pin. An opening is formed in the recess 41 a of the engagement step 41. A guide portion 43 that communicates with the return path guide portion 31 communicates with the recess 41 a outside the pin outlet 55 b of the turn-back guide portion 55.

  In this pin guide, the innermost part of the folding guide part 55 is the guide pin position b at the end of the push-on operation of the guide pin 16. That is, the guide pin 31 moves from the standby guide pin stop position a to the back side, moves to the back side along the inclined portion 42, and enters the turn-back guide portion 55. At this time, the innermost surface 55c on the inner side of the folding guide portion 55c is located behind the opening of the pin outlet 55b, so that the folding guide portion does not come out of the folding guide portion 55. The innermost portion of 55 is the guide pin position b at the end of the push-on operation, and is prevented from moving in the pushing direction, and the slider 13 is stopped in a state where further pushing is impossible.

  When the operating force in the pushing direction of the slider 13 is released from this state, the slider 13 is moved in the pushing back direction by the return spring 14. At this time, since the guide pin 13 is biased outward by the spring arm 40, the guide pin 13 moves to the pin outlet 55b side along the inner peripheral surface 55c of the folding guide portion 55 and is locked in the recess 41a.

  Further, in this example, the return path guide portion 31 is configured by the inclined portion 31a and the linear portion 31b, and the innermost guide portion 43 of the forward path guide portion 30 is formed linearly, and the inclined portion 31a Similar to the embodiment shown in FIG. 1, an anti-reverse mechanism using a stepped portion 45 is provided at the crossing position of the guide portion 43. The guide pin stop position d when the guide pin 13 is pushed most when the slider 13 is pushed most is the innermost part of the inclined portion 31a. Note that the reverse prevention mechanism may be a so-called flap valve type used in the second embodiment of FIG.

  In the embodiment described above, the pin guide 15 is provided on the housing body 10A side and the guide pin 16 is provided on the slider 13 side. However, as shown in FIG. 11, the pin guide 15 is provided on the slider 13 side. Also good. In this case, contrary to the above, the standby guide pin stop position a is positioned at the distal end side of the slider 13, and the guide pin stop position d when pressed most is positioned at the proximal end side of the slider 13. Further, the back-return prevention mechanism, in this example, the stepped portion 45 is located at the lower position in the drawing of the standby guide pin stop position a, and the guide pin movement from the forward guide portion 30 to the backward guide portion 31 is prevented. It has become the arrangement.

  Further, the pin guide 15 is formed with protrusions on the surface of the flat plate portion as described above, and the rising wall on the side surface is formed as a pin sliding contact surface. And the rising wall on one side in the groove may be configured as a pin sliding contact surface.

  In FIG. 10, the same functional parts as those in the embodiment described above are denoted by the same reference numerals, and redundant description is omitted.

It is a top view of the state which removed the top plate of the housing and disclosed the internal structure in one Example of the push lock type card connector concerning the present invention. It is a disassembled perspective view which shows the slider and housing which are used with the push lock type card connector of a present Example. It is sectional drawing of the reverse rotation prevention mechanism part in a present Example. It is a top view which shows the operation state at the time of card insertion in the state which removed the top plate of the housing with the push lock | rock type card connector of a present Example, and disclosed the internal structure. It is a top view which shows the operation state at the time of prevention of a guide pin reverse return immediately after a slider return operation start in the state which removed the top plate of the housing by the push lock type card connector of this example, and disclosed the internal structure, and the operation process of a guide pin. . It is a fragmentary sectional view which shows the slider rotation center part of the push lock type card connector of a present Example. It is a disassembled perspective view which shows the slider and housing of the push-lock type card connector of 2nd Example of this invention. It is a top view which shows the operation state at the time of prevention of a guide pin reverse return immediately after a slider return operation | movement start in the state which removed the top plate of the housing with the push lock type card connector of 2nd Example, and disclosed the internal structure. It is a top view which shows the operation | movement process of the state which has the slider in the push-in type memory card connector of the 3rd Example of this invention in a pushing-in last end part, and a guide pin. FIG. 10 is a partially enlarged plan view of FIG. 9. It is a top view which shows the operation process of the state which the slider in the push-lock type memory card connector of 4th Example of this invention exists in a standby position, and a guide pin. It is a top view of the state which removed the top plate of the housing of an example of the conventional push lock type card connector, and disclosed the internal structure. FIG. 12 is a front view of the push-lock type memory card connector shown in FIG. 11. It is a perspective view which shows the guide pin currently used for the push lock type memory card connector.

Explanation of symbols

A Card a to d Guide pin stop position o Center of rotation 10A Housing body 10Aa Back wall
10B Shield cover 10a Bottom surface 10b Push-down spring portion 11 Card insertion space 13 Slider 13a Support column 13b Fixing groove 14 Return spring 14a, 14b Return spring end fitting protrusion 15 Pin guide 16 Guide pin 20 Body portion 21 Guide portion 21a Inner slide Surface 21b Outer slide surface 22 Slider guide groove 22a Inner guide protrusion 22b Outer guide protrusion 23 Return spring receiving portion 24 Slider stopper 25 Card stopper portion 26a Card locking claw 26b Recess 27 Missing portion 30 Outward guide portion 31 Outward guide portion 31a Inclined portion 31b Linear portion 40 Helical spring 40a Helical winding portion 40b Spring arm 40c Fixed arm 41 Guide pin engaging step portion 41a Guide pin engaging concave portion 42 Inclined portion 43 Guide portion 43a Inclined surface 45 Step portion 46 Spring material 47 Partition wall 50 Stop the door 51 step portion 55 folded induction guide portion 55a pin inlet 55b pins outlet 55c in the peripheral surface

Claims (6)

A slider that slides back and forth in the insertion / ejection direction of the card inserted into the card insertion space of the housing of the card connector;
A return spring that biases the slider in the card ejection direction;
When the slider is pushed together with the card, the slider is detented at a predetermined pushing position, and a pin guide for releasing the detent by the pushing operation again and a guide pin moving along the pin guide are provided. With push-on and push-off mechanisms,
Engagement concavo-convex portions that engage with the card by a concavo-convex fitting structure between the edge portion on the card insertion space side of the slider and the slider side edge of the card are provided,
The slider can be rotated in a direction in which the engagement uneven portion is removed by being pushed by the card insertion / removal at a standby position before the pushing operation, and at the position pushed together with the card, the turning is performed. So that the engaging irregularities are prevented from coming off,
A guide pin that constitutes the push-on / push-off mechanism is integrally provided at the tip of a spring arm that is urged in a direction opposite to the direction in which the engagement uneven portion is prevented from coming off, intersecting the direction of movement of the slider. A push-lock card connector characterized in that the spring arm is used both as an urging means for constituting a push-on / push-off mechanism for the guide pin and an urging means for returning the slider to the rotational operation. .   A slider guide groove that guides the slider is provided on the bottom surface of the housing, and a guide portion that is fitted and guided in the slider guide groove is provided on the bottom of the slider. The slider is formed by a pair of rising walls parallel to each other, and a play space is formed by providing a missing portion having a shape in which one of the guide protrusions is notched in a portion corresponding to the standby position of the slider. Is in the standby position so that the slider can move to the play space side and is turned by the card insertion / removal so that the engagement irregularity is removed, and a predetermined length from the standby position. In the pushed-in position, the guide part at the bottom of the slider is restricted by the guide groove and the lateral movement is prevented. Push-lock memory card connector of claim 1 comprising as more becomes unrotatable.   The spring arm is composed of a linear spring portion extending from one end side of the helical spring, and a portion of the helical spring excluding the linear spring portion at one end side is fixed to the slider, and push-on / push-off is performed. 3. A push-lock type memory card connector according to claim 1, wherein a pin guide constituting the mechanism is provided on the bottom surface of the housing. The push-on / push-off mechanism includes a pin guide on one side of the housing or slider, and a guide pin on the other side,
The spring arm is installed so as to be urged by a side surface of the guide pin in a direction of pressing a sliding contact surface formed of a rising wall surface constituting the pin guide,
The pin guide includes an outward path guide portion that slides when the guide pin operates in the pushing direction of the slider, and a return path guide portion that slides during the return operation,
Between one end of the forward path guide portion and the backward path guide portion, a reverse return preventing mechanism is provided that does not return in the reverse direction after the guide pin passes from one side to the other side against the biasing force of the spring arm. As a result, the guide pin circulates in one direction along the pin guide by the pushing / returning operation of the slider,
The guide pin engaging part for a slider detent in which a guide pin is locked against the urging force of the return spring is provided in the middle of the forward path guide part. Push-lock memory card connector as described.   The back-return prevention mechanism includes a step for preventing the back-return in which the traveling direction side of the guide pin is lowered on the bottom surface of the pin guide at the boundary portion between the forward path guide portion and the return path guide portion, and the guide pin at the level position. 5. The push-lock type memory card connector according to claim 4, wherein the push-lock type memory card connector has a downward urging means for urging the tip thereof to a lower height than the high side of the step.   5. The push-lock type memory card connector according to claim 4, wherein the reversion preventing mechanism includes a flap valve type door that opens only on a traveling direction side of the guide pin.

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