JP2006134812A - Connector device for card - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector device for card which uses a helical torsion spring as a movable contact of a switch which operates accompanied by installation of a card, and earns moving stroke for a switching fixed contact, thereby becoming suitable for cost reduction and small sized. <P>SOLUTION: A first switch 19, which detects a card 2 having been installed at the prescribed position, is constituted of an actuator member 24 which is pushed downward by the card 2, a helical torsion spring 23 which extends a first arm portion 23b and a second arm portion 23c from both ends of a wound portion 23a, and a common fixed contact 21 and a switching fixed contact 22, which are arranged in the housing 1 at prescribed intervals. The wound portion 23a of the helical torsion spring 23 is supported in a free state in the recessed part 24b formed on the side face of the actuator member 24, a stopper portion 21a for regulating movement of the first arm portion 23b is formed at the common fixed contact 21, and the switch is constituted such that only the second arm portion 23c expands and contacts the switching fixed contact 22. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a card connector device including a switch mechanism including a first switch for detecting that a card is mounted at a mounting position of a housing and a second switch for detecting prohibition of writing to the card. The present invention relates to a contact switching structure of the first and second switches.

  Generally, a card connector device is provided with a card recognition switch as a first switch and a write protect detection switch as a second switch, and the card is mounted at the mounting position of the housing by the first switch. And the prohibition of writing to the card is detected by the second switch.

  Conventionally, the contact switching structure of the first switch and the second switch is composed of a fixed contact provided on the housing and a movable contact made of a torsion coil spring held by an actuator member, and the card is mounted at a predetermined position. Then, a card connector device is proposed in which the torsion coil spring and the fixed contact are made conductive by bringing the card into contact with the actuator member and deforming the torsion coil spring (see, for example, Patent Document 1). ).

  6 to 10 are diagrams for explaining the conventional example disclosed in Patent Document 1, FIG. 6 is a plan view of the card connector device, and FIG. 7 is an operation explanatory view of a lock mechanism provided in the card connector device. 8 is a plan view of the first switch and the second switch provided in the card connector device, FIG. 9 is a sectional view taken along line IX-IX in FIG. 8, and FIG. 10 is a diagram of these first switch and second switch. It is sectional drawing which shows an operation state.

  The card connector device shown in these drawings includes a housing 1 made of synthetic resin, and a card 2 is mounted on the housing 1. The card 2 has an information storage function, and as shown in FIG. 6, a concave portion 2a is formed on the right edge thereof. In addition, an oblique cutout 3 is formed at the right corner of the front end of the card 2, and a protect button 4 that prohibits writing to the card 2 is arranged on the left edge of the card 2. It is installed. FIG. 6 shows a state in which the protect button 4 is operated to the write-protect side. When the protect button 4 is operated to the write-protect side in this way, writing to the card 2 is prohibited. If the protect button 4 is not operated to the write-protect side, writing to the card 2 is possible.

  A card insertion slot 5 for inserting the card 2 is formed in the front side portion of the housing 1, and a contact member (not shown) provided on the back surface of the card 2 is in contact with the back side of the housing 1. A plurality of terminal members 6 that can be connected to an external signal system are provided. Further, a slider 7 that pushes the card 2 in the ejecting direction and a spring 8 that biases the slider 7 in the ejecting direction are disposed at the right end of the housing 1. An inclined portion 9 that engages with the notch 3 of the card 2 is formed.

  One end of the engaging elastic member 10 is cantilevered on the slider 7, and a protruding portion 11 that can be engaged with the concave portion 2 a of the card 2 is formed in the vicinity of the free end of the engaging elastic member 10. Further, a lock mechanism 12 that locks the slider 7 at a predetermined mounting position against the biasing force of the spring 8 is provided at the right end of the housing 1, and as shown in FIG. Includes a sliding member 14 having one end swingably provided on the slider 7 and having a pin 13 at the other end, and a heart-shaped cam groove 15 in which the pin 13 of the sliding member 14 is guided. The heart-shaped cam groove 15 includes an outward path 16, a return path 17, and a lock portion 18 that forms a boundary between the forward path 16 and the return path 17.

  On the other hand, a first switch 19 for detecting that the card 2 is mounted at a predetermined mounting position and a second switch 20 for detecting write prohibition on the card 2 are disposed at the left end of the housing 1. Yes. The first switch 19 and the second switch 20 are arranged in a straight line along the card insertion / removal direction, that is, along the vertical direction of FIG. 6, and the second switch 20 is positioned on the side close to the card insertion slot 5. The first switch 19 is positioned on the side far from the card insertion slot 5.

  As shown in FIGS. 8 to 9, the first switch 19 includes a pair of fixed contacts 21 and 22 provided in the housing 1, a torsion coil spring 23 that is a movable contact, and a composite that holds the torsion coil spring 23. And an actuator member 24 made of resin. Both fixed contacts 21 and 22 are arranged at a predetermined interval along the card insertion / removal direction, one fixed contact 21 is a common fixed contact, and the other fixed contact 22 is a switching fixed contact. The torsion coil spring 23 has a winding portion 23a wound a plurality of turns, and a first arm portion 23b and a second arm portion 23c extending from both ends of the winding portion 23a. The part 23 a is inserted into a shaft 24 a provided on the actuator member 24. The first arm portion 23 b of the torsion coil spring 23 is always in contact with the common fixed contact 21, but the second arm portion 23 c is disposed so as to be able to contact and separate from the switching fixed contact 22. That is, when the card 2 is not attached to the housing 1, both the arm portions 23 b and 23 c of the torsion coil spring 23 are kept in the non-expanded state, and the second arm portion 23 c is separated from the switching fixed contact 22. However, as will be described later, when the card 2 is mounted at a predetermined mounting position of the housing 1, the second arm portion 23c is connected to the switching fixed contact 22 in accordance with the expansion of both the arm portions 23b and 23c. To come into contact. The actuator member 24 has a pin 24 b at one end, and the pin 24 b is attached to the housing 1. In addition, the actuator member 24 is formed with a slope portion 24c. When the slope portion 24c is pressed by the card 2 mounted on the housing 1, the actuator member 24 moves in the vertical direction with the pin 24b as a rotation fulcrum. It is supposed to move.

  The second switch 20 also has the same contact switching structure as the first switch 19. That is, the second switch 20 includes a pair of fixed contacts 25 and 26 provided on the housing 1, a torsion coil spring 27 that is a movable contact, and an actuator member 28 made of a synthetic resin that holds the torsion coil spring 27. One fixed contact 25 is a common fixed contact, and the other fixed contact 26 is a switching fixed contact. The torsion coil spring 27 has a winding portion 27a wound a plurality of turns, and a first arm portion 27b and a second arm portion 27c extending from both ends of the winding portion 27a. The portion 27 a is inserted into a shaft 28 a provided on the actuator member 28. The first arm portion 27b of the torsion coil spring 27 is always in contact with the common fixed contact 25, but the second arm portion 27c is disposed so as to be able to contact with and separate from the switching fixed contact 26. When 2 is mounted at a predetermined mounting position of the housing 1, the second arm portion 27 c comes into contact with the switching fixed contact 26 as the both arm portions 27 b and 27 c of the torsion coil spring 27 are expanded. ing. The actuator member 28 has a pin 28 b at one end, and the pin 28 b is attached to the housing 1. The actuator member 28 has a slope portion 28c. When the slope portion 28c is pressed by the card 2 mounted on the housing 1, the actuator member 28 moves in the vertical direction using the pin 28b as a pivot point. It is supposed to move.

  In the card connector device thus configured, in a standby state before the card 2 is inserted, the slider 7 is urged toward the card insertion slot 5 by the spring 8 and is connected to the slider 7 accordingly. The pin 13 of the sliding member 14 thus held is held at the standby position of the heart-shaped cam groove 15. Further, as shown in FIG. 9, in such a standby state, the first arm portion 23b of the torsion coil spring 23 of the first switch 19 is in contact with the common fixed contact 21, but the second arm portion 23c is Since it is separated from the switching fixed contact 22, the first switch 19 that detects that the card 2 is mounted at a predetermined mounting position is in an OFF state. Similarly, the first arm portion 27 b of the torsion coil spring 27 of the second switch 20 is in contact with the common fixed contact 25, but the second arm portion 27 c is separated from the switching fixed contact 25. The second switch 20 that detects the prohibition of writing to the card 2 is also in the OFF state.

  Now, as shown in FIG. 6, when the protect button 4 is kept in a state where the protect button 4 is not operated to the write-inhibited side and data can be written to the card 2, such a card 2 is inserted into the card insertion slot. 5 is inserted into the housing 1 and pushed toward the back of the housing 1, the notch 3 formed at the corner of the front end of the card 2 is engaged with the inclined portion 9 of the slider 7, and the slider 7 is connected to the spring 8. It moves toward the back side with the card 2 against the urging force. By the movement of the slider 7, the pin 13 of the sliding member 14 constituting the lock mechanism 12 is guided on the forward path 16 of the heart-shaped cam groove 15. When the card 2 is inserted, the protrusion 11 of the engaging elastic member 10 that is cantilevered by the slider 7 engages with the recess 2 a of the card 2, and the card 2 passes through the engaging elastic member 10. Retained.

  When the card 2 approaches a predetermined mounting position in the housing 1, the card 2 comes into contact with the inclined surface portion 23c of the actuator member 24 on the first switch 19 side, and the actuator member 24 is twisted by the pushing force applied to the card 2. It rotates downward against the spring force of the spring 23. As a result, as shown in FIG. 10A, as the actuator member 24 rotates, both the arm portions 23b and 23c of the torsion coil spring 23 are expanded, and the first arm portion 23b is a common fixed contact. Since the second arm portion 23c is in contact with the switching fixed contact 22, the first switch 19 is switched from the OFF state to the ON state.

  When the pushing force to the card 2 is removed in the state where the slider 7 is overstroked to the innermost end of the housing 1 by the pushing operation of the card 2 described above, the slider 7 is slightly moved by the urging force of the spring 8 and the card insertion slot 5 is slightly moved. Back in the direction. During this time, the pin 13 of the sliding member 14 that moves integrally with the slider 7 moves from the forward path 16 of the heart-shaped cam groove 15 to the lock portion 18 and is locked by the lock portion 18. The mounting position is reached and the slider 7 is locked. In this state, since the first switch 19 is turned on as described above, a signal for detecting that the card 2 is mounted at a predetermined mounting position is output from the first switch 19. At such a predetermined mounting position, a connection member (not shown) provided on the back surface of the card 2 and the terminal member 6 shown in FIG. 6 are kept in contact with each other. Can be sent and received.

  In this way, while the protect button 4 of the card 2 is kept in a state where it is not operated to the write prohibition side and this card 2 is held at a predetermined mounting position of the housing 1, it is shown in FIG. Thus, the 2nd switch 20 is maintained in the OFF state. That is, since the protect button 4 of the card 2 is not currently operated to the write-protect side, the protect button 4 of the card 2 and the actuator member 28 are not engaged. Therefore, the actuator member 28 is held at the upper position, and the second arm portion 27 c of the torsion coil spring 27 of the second switch 20 is separated from the switching fixed contact 25. However, when the protect button 4 is operated to the write prohibition side and data writing to the card 2 is prohibited, when the card 2 is inserted from the card insertion slot 5 and pushed toward the back of the housing 1. The protect button 4 of the card 2 comes into contact with the inclined surface portion 28c of the actuator member 28 that holds the torsion coil spring 27 of the second switch 20, and the actuator member 28 springs the torsion coil spring 27 by the pushing force applied to the card 2. It rotates downward against the force. As a result, as shown in FIG. 10B, as the actuator member 28 rotates, both the arm portions 27b and 27c of the torsion coil spring 27 expand, and the second arm portion 27c becomes the switching fixed contact. 26, the second switch 20 is turned on, so that a signal prohibiting writing to the card 2 is output from the second switch 20.

  When the card 2 is ejected, an operation of pressing the card 2 again is performed. That is, it is a push-push type in which the card 2 is pushed once when inserted and the card 2 is pushed again when ejected. In this case, if the card 2 is pushed to the innermost end of the housing 1 from the state where the card 2 is held at the predetermined mounting position of the housing 1 and is overstroke again, the sliding member 14 constituting the lock mechanism 12 is moved. The pin 13 moves away from the lock portion 18 of the heart-shaped cam groove 15 and moves to the return path 17. As a result, the slider 7 is unlocked and the slider 7 is moved toward the card insertion slot 5 by the urging force of the spring 8, so that the card 2 is pushed out to the predetermined ejection position together with the slider 7. During this time, the protruding portion 11 of the engaging elastic member 10 is held in a state of being engaged with the concave portion 2a of the card 2, and the pin 13 of the sliding member 14 is moved to the heart-shaped cam as the slider 7 moves in the discharging direction. It is guided to the return path 17 of the groove 15 and returned to the standby position.

Further, the movement of the card 2 accompanying the movement of the slider 7 removes the pressing force applied to the inclined surface portion 23c of the actuator member 24, and the actuator member 24 is driven by the spring force of both the arm portions 23b and 23c of the torsion coil spring 23. Rotates upward and returns to the standby position shown in FIG. Therefore, the second arm portion 23c of the torsion coil spring 23 is separated from the switching fixed contact 22, and the first switch 19 is turned off again. In this case, if the protect button 4 of the card 2 is operated to the write-protect side, the pressing force applied to the slope portion 28c of the actuator member 28 is removed by the movement of the card 2 accompanying the movement of the slider 7. The second switch 20 operates similarly to the first switch 19 and is turned off. When the card 2 thus returned to the predetermined discharge position is extracted, the protruding portion 11 of the engagement elastic member 10 is detached from the recess 2a of the card 2, so that the card 2 can be easily extracted from the card insertion slot 5. be able to.
Japanese Patent Laying-Open No. 2004-185822 (page 5-9, FIG. 8)

  According to the conventional card connector device described above, the contact switching structure of the first switch 19 for detecting that the card 2 is mounted at a predetermined mounting position and the second switch 20 for detecting write prohibition on the card 2 is provided. Then, the actuator members 24 and 28 supported by the housing 1 are brought into contact with the card 2 mounted at a predetermined mounting position and pushed down to expand both arm portions of the torsion coil springs 23 and 27 held by the actuator members 24 and 28. Since the pair of fixed contacts are opened, the width of the torsion coil springs 23 and 27 that are movable contacts and the actuator members 24 and 28 that hold them is set to be relatively small. There is an advantage that the apparatus can be miniaturized.

  However, in the conventional card connector device described above, both the arm portions of the torsion coil springs 23 and 27 expand with the movement of the actuator members 24 and 28, that is, the first arm portions 23b and 27b and the first arm portions 23b and 27b. Since the second arm portions 23c and 27c move outward by substantially the same amount, it is possible to sufficiently secure the moving stroke of the second arm portions 23c and 27c that come in contact with and separate from the switching fixed contacts 22 and 26. Disappear. In particular, when the card 2 having a small thickness is used, the movement amount of the actuator members 24 and 28 is reduced, and the movement stroke of the second arm portions 23c and 27c may be reduced to, for example, about 0.5 mm. In order to determine the ON / OFF switching timing within such a narrow range, high processing accuracy is required for each member including the housing 1 having each fixed contact and the actuator members 24 and 28 and the torsion coil springs 23 and 27. This has been a major factor in increasing the manufacturing cost of the card connector device.

  The present invention has been made in view of the actual situation of the prior art, and an object of the present invention is to use a torsion coil spring as a movable contact of a switch that operates in accordance with the mounting of a card, and to fix the torsion coil spring for switching. An object of the present invention is to provide a card connector device that is inexpensive and suitable for downsizing by making it possible to earn a moving stroke with respect to a contact.

  In order to achieve the above object, a card connector device according to the present invention includes a first switch for detecting that a card is mounted at a mounting position of a housing, and a second switch for detecting write prohibition to the card. And at least one of the first and second switches is always in contact with the common fixed contact and the switching fixed contact disposed at a predetermined interval in the housing, and the common fixed contact. A movable contact comprising a torsion coil spring in which a first arm and a second arm that can be contacted and separated from the switching fixed contact are extended from both ends of the winding part, and an actuator member that holds the torsion coil spring And a stopper portion for restricting movement of the first arm portion is provided on the housing, and the card is mounted when the card is mounted at a predetermined position of the housing. Is pressed against the actuator member to press the winding portion of the torsion coil spring, so that only the second arm portion is expanded with respect to the first arm portion restricted by the stopper portion. Then, it is configured to come into contact with the fixed contact for switching.

  In the card connector device thus configured, when the actuator member that holds the torsion coil spring is pressed against the card, the arm portion of the torsion coil spring expands accordingly, and the gap between the fixed contacts is increased. At this time, the movement of the first arm portion that is always in contact with the common fixed contact among the arm portions of the torsion coil spring is restricted by the stopper portion, and only the second arm portion is expanded. Thus, the moving stroke of the second arm portion with respect to the switching fixed contact can be set sufficiently large. Therefore, at least one of the first switch for detecting that the card is mounted at the mounting position of the housing and the second switch for detecting write prohibition to the card, preferably both If applied to the above, the total cost of the card connector device can be reduced and the miniaturization can be realized.

  In the above configuration, the stopper portion can be provided on a housing or the like as long as it restricts the movement of the first arm portion, but the stopper portion is bent at the common fixed contact. It is preferable to comprise a stepped portion. When such a configuration is adopted, the structure can be simplified and the cost can be further reduced.

  In the above configuration, the means for holding the torsion coil spring on the actuator member is not particularly limited, but a recess is provided on the side surface of the actuator member, and the winding portion of the torsion coil spring is free in the recess. When the actuator member is configured to be held in a state, the actuator member has a function of pressing the torsion coil spring, but does not serve as a part for positioning the gap between the second arm portion and the switching fixed contact, and is an accumulated error with respect to the gap. Since the only components that cause this are the torsion coil spring and the fixed contact, the machining accuracy required for the actuator member becomes rough and the productivity is further improved.

  According to the card connector device of the present invention, the movement of the first arm portion that is always in contact with the common fixed contact among the both arm portions of the torsion coil spring held by the actuator member is restricted by the stopper portion. Since only the arm portion is expanded and contacts the switching fixed contact, the moving stroke of the second arm portion relative to the switching fixed contact can be set sufficiently large. Therefore, if the switch having such a contact switching structure is applied to at least one of the first switch that detects that the card is mounted at the mounting position of the housing and the second switch that detects prohibition of writing to the card. Thus, the total cost of the card connector device can be reduced and the size can be reduced.

  FIG. 1 is a plan view of a card connector device according to an embodiment of the present invention, and FIG. 2 is a first switch and a second switch provided in the card connector device. FIG. 3 is a sectional view showing the ON operation state of the first switch and the second switch, FIG. 4 is a perspective view showing the OFF state of the first switch, and FIG. 5 is the first view. It is a perspective view which shows the ON operation state of a switch, The overlapping description is abbreviate | omitted suitably by attaching | subjecting the same code | symbol to the part corresponding to FIGS.

  The card connector device according to this embodiment is different from the conventional example shown in FIGS. 6 to 10 in that the card 2 is connected to the first switch 19 that detects that the card 2 is mounted at a predetermined mounting position, and the card 2. As a contact switching structure of the second switch 20 for detecting write prohibition, when the torsion coil springs 23, 27 that are movable contacts are expanded, the first arm portions 23b, 27b that are always in contact with the common fixed contacts 21, 25 side. Is limited by the stopper portion, and only the second arm portions 23c and 27c are expanded so as to come into contact with the switching fixed contacts 22 and 26, and the other configurations are basically the same. It is.

  That is, the contact switching structure of the first switch 19 includes a common fixed contact 21 and a switching fixed contact 22 provided in the housing 1, a torsion coil spring 23 that is a movable contact, and a composite that holds the torsion coil spring 23. The resin actuator member 24 is included, but a stepped portion is formed on the common fixed contact 21 to form a stopper portion 21a, and the second arm portion 23c of the torsion coil spring 23 is formed on the stopper portion 21a. It is locked. In addition, a recess 24d is provided on the side surface of the actuator member 24 instead of the shaft, and the winding portion 23a of the torsion coil spring 23 is held in the recess 24d in a free state. The stopper portion 21a and the recess 24d are added. The point is greatly different from the conventional example described above.

  Similarly to the first switch 19, the contact switching structure of the second switch 20 is a common fixed contact 25 and switching fixed contact 26 provided in the housing 1, a torsion coil spring 27 as a movable contact, and the torsion coil spring. The actuator member 28 made of synthetic resin that holds the actuator 27 is included, but a step portion is formed by bending the common fixed contact 25 to form a stopper portion 25a, and the second torsion coil spring 27 is formed on the stopper portion 25a. The arm portion 27c is locked. In addition, a concave portion 28d is provided on the side surface of the actuator member 28 instead of the shaft, and the winding portion 27a of the torsion coil spring 27 is held in the concave portion 28d in a free state. The stopper portion 25a and the concave portion 28d are added. The point is greatly different from the conventional example described above.

  Next, the operation of the thus configured card connector device will be described. The card connector device according to the present embodiment also has the same operation of the lock mechanism 12 and the like when the card 2 is mounted as in the conventional example described above. Therefore, here, the contact switching operation of the first and second switches 19 and 20 will be mainly described.

  As shown in FIGS. 2 and 4, the first arm portion 23 b of the torsion coil spring 23 on the first switch 19 side is in contact with the common fixed contact 21 in the standby state before the card 2 is inserted. However, the second arm portion 23c is separated from the switching fixed contact 22, and the first switch 19 for detecting that the card 2 is mounted at a predetermined mounting position is in an OFF state. Similarly, the first arm portion 27 b of the torsion coil spring 27 on the second switch 20 side is in contact with the common fixed contact 25, but the second arm portion 27 c is separated from the switching fixed contact 25. The second switch 20 that detects the prohibition of writing to the card 2 is also in the OFF state.

  Now, when the protect button 4 of the card 2 is kept in a state where it is not operated to the write-protect side, and the card 2 in such a state that the write operation is possible is inserted into the housing 1 from the card insertion slot 5, When the card 2 is pushed to a predetermined mounting position in the housing 1, the card 2 comes into contact with the slope 23 c of the actuator member 24 on the first switch 19 side, and the actuator member 24 is twisted by the pushing force applied to the card 2. It rotates downward against the spring force of the spring 23. As the actuator member 24 rotates, the winding portion 23a of the torsion coil spring 23 is pressed downward, and a force is generated to push the first and second arm portions 23b and 23c outward. However, at this time, since the movement of the first arm portion 23b that is always in contact with the common fixed contact 21 is restricted by the stopper portion 21a, as shown in FIG. 3A and FIG. Only the second arm portion 23c of the coil spring 23 expands and contacts the switching fixed contact 22, whereby the first switch 19 is switched from OFF to ON.

In this way, by restricting the movement of the first arm portion 23b in contact with the common fixed contact 21 by the stopper portion 21a, the movement stroke of the second arm portion 23c relative to the switching fixed contact 22 is sufficiently increased. Since it can be set large, the processing accuracy required for the fixed contacts 21 and 22, the torsion coil spring 23, and the actuator member 24, which are the components of the first switch 19, can be relatively rough. Can be reduced. Compared with the type in which both arm portions of the torsion coil spring 23 are expanded as in the conventional example described above, the movement stroke of the second arm portion 23c that contacts and separates from the switching fixed contact 22 is conventionally increased. In the case of the present embodiment, the movement stroke of the second arm portion 23c can be widened to 0.8 mm. Further, since the winding portion 23 a of the torsion coil spring 23 is held in a free state in the recess 24 d provided on the side surface of the actuator member 24, the actuator member 24 only functions as a pressing member that presses the torsion coil spring 23. Thus, it is not a component for positioning the gap between the second arm portion 23c and the switching fixed contact 22. That is, since only the torsion coil spring 23 and the fixed contacts 21 and 22 are the components that cause the cumulative error with respect to the gap, it is not necessary to process the actuator member 24 with high accuracy, and this also increases productivity. In this way, while the protect button 4 of the card 2 is kept in a state where it is not operated to the write-inhibited side and the card 2 is held at a predetermined mounting position of the housing 1, FIG. As shown in FIG. 2, the second switch 20 is kept in the OFF state. That is, since the protect button 4 of the card 2 is not currently operated to the write-protect side, the protect button 4 of the card 2 and the actuator member 28 are not engaged. Therefore, the actuator member 28 is held at the upper position, and the second arm portion 27 c of the torsion coil spring 27 of the second switch 20 is separated from the switching fixed contact 25.

  However, when the protect button 4 is operated to the write prohibition side and data writing to the card 2 is prohibited, the second switch 20 is turned on by the card 2 in the same manner as the first switch 19. That is, when the card 2 is inserted from the card insertion slot 5 and pushed toward the back side of the housing 1, the protect button 4 of the card 2 comes into contact with the slope portion 28c of the actuator member 28 on the second switch 20 side. The pushing force applied to the card 2 causes the actuator member 28 to rotate downward against the spring force of the torsion coil spring 27. As the actuator member 28 rotates, the winding portion 23a of the torsion coil spring 27 is pressed downward, but the movement of the first arm portion 27b always in contact with the common fixed contact 25 is stopped. Since it is restricted by the portion 25a, as shown in FIG. 3B, only the second arm portion 27c of the torsion coil spring 27 expands to contact the switching fixed contact 26, thereby the second switch. 20 switches from off to on. As described above, since the contact switching structure of the second switch 20 is configured in the same manner as the first switch 19, the second switch 20 that detects the prohibition of writing to the card 2 is also the same as the first switch 19 described above. The effect of.

  In the above-described embodiment, the contact switching structure of the present invention has the first switch 19 that detects that the card 2 is mounted at the mounting position of the housing 1 and the second that detects that writing to the card 2 is prohibited. Although the case where the present invention is applied to both of the switches 20 has been described, any one of the switches can have another contact switching structure.

  In the above-described embodiment, the stopper portions 21a and 25a for restricting the movement of the first arm portions 23a and 27b of the torsion coil springs 23 and 27 are bent at the common fixed contacts 21 and 25, respectively. A stopper portion having such a function can be formed on the housing 1.

1 is a plan view of a card connector device according to an embodiment of the present invention. It is sectional drawing which shows the OFF state of the 1st switch and 2nd switch with which this card connector apparatus is equipped. It is sectional drawing which shows the ON operation state of this 1st switch and a 2nd switch. It is a perspective view which shows the OFF state of this 1st switch. It is a perspective view which shows the ON operation state of this 1st switch. It is a top view of the connector apparatus for cards which concerns on a prior art example. It is operation | movement explanatory drawing of the locking mechanism with which this card connector apparatus is equipped. It is a top view of the 1st switch and 2nd switch with which this card connector apparatus is equipped. It is sectional drawing which follows the IX-IX line of FIG. It is sectional drawing which shows the operation state of this 1st switch and a 2nd switch.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing 2 Card 4 Protection button 5 Card insertion slot 21, 25 Common fixed contact 21a, 25a Stopper part 22, 26 Switching fixed contact 23 Torsion coil spring 23a, 27a Winding part 23b, 27b First arm part 23c, 27c Second arm portion 24, 28 Actuator member 24b, 28b Pin 24c, 28c Slope portion 24d, 28d Recessed portion

Claims (3)

A first switch for detecting that the card is mounted at the mounting position of the housing, and a second switch for detecting prohibition of writing to the card,
At least one of the first and second switches has a first fixed contact for switching and a fixed fixed contact for switching disposed at a predetermined interval in the housing, and a first fixed contact with the fixed fixed contact for common use. A movable contact formed of a torsion coil spring in which a second arm portion capable of contacting and separating from the arm portion and the switching fixed contact is extended from both ends of the winding portion; and an actuator member for holding the torsion coil spring. And providing a stopper portion for restricting movement of the first arm portion in the housing,
When the card is mounted at a predetermined position of the housing, the card is brought into contact with the actuator member to press the winding portion of the torsion coil spring, thereby restricting the first by the stopper portion. A card connector device, wherein only the second arm portion is expanded with respect to the arm portion and contacts the switching fixed contact.   2. The card connector device according to claim 1, wherein the stopper portion includes a step portion formed by bending at the common fixed contact.   3. The card connector device according to claim 1, wherein a concave portion is provided on a side surface of the actuator member, and the winding portion of the torsion coil spring is held in the concave portion in a free state.

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