JP3375786B2 - Card connector with eject mechanism - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card connector having an eject mechanism, and more particularly to a card connector of the type in which a card is ejected by swinging a lever of the eject mechanism.

[0002]

2. Description of the Related Art In a conventional card connector intended for use with various information processing cards such as IC cards, the operation of an eject mechanism for ejecting the card is performed via the swing of a lever. As the structure of the eject mechanism that performs such an operation, energy is stored in the spring body when the card is inserted, and the lever is used to swing the card by using the energy of the spring body. There is one that is pushed and ejected.

[0003]

However, in this type of card connector, although the lever of the eject mechanism is locked at the standby position when the card is completely inserted, the card itself is Since it was only held at the set position by the elastic contact force between the many contact pieces on the connector side and the many contact pieces on the card side, it was possible to artificially pull out the card.

For this reason, there is a possibility that the card of the card operator set in the connector may be forcibly pulled out by another person while there is no true card operator.

The present invention has been made under the above circumstances, and the card is prevented from being pulled out in conjunction with the operation of the lever of the eject mechanism being locked at its standby position.
An object of the present invention is to provide a card connector provided with an eject mechanism in which a card can be pulled out in synchronization with an operation of releasing a locked state of a lever.

[0006]

In a card connector provided with an eject mechanism of the invention according to claim 1, a lever is attached to a body forming a card insertion / removal path so as to be swingable about a predetermined point as a fulcrum. , By being pushed by the end face of the card inserted into the insertion / removal path, it is swung from the forward position to the standby position and locked at the standby position, while the lever is released as the locked state is released. In a card connector equipped with an eject mechanism that swings from the standby position to the forward position by the force of the spring body to push the card through the insertion / removal path, the card connector is inserted into the insertion / removal path in conjunction with the operation of the lever reaching the standby position. To prevent the card from being pulled out by engaging with the card set in its predetermined position and releasing the locked state of the lever. Having a detachment mechanism for preventing card withdrawal engagement with the card is released along with the, is that.

In the card connector having such an ejecting mechanism, as in the invention according to claim 2, an engaging / disengaging mechanism for preventing the card from being pulled out is provided on the lever when the lever reaches the standby position. The card insertion / removal path between the movable body pushed from the non-operating position to the operating position by the contact part and the engaging position with respect to the engaged part and the releasing position with respect to the engaged part provided on the card. With respect to the movable member, a connecting member that reciprocates in the direction along the card insertion / removal path in association with the movement of the movable body between the non-operating position and the operating position, and the connecting member. It is possible to employ a configuration including a motion converting mechanism that connects the engaging member and converts the reciprocating movement of the connecting member into the retracting movement of the engaging member.

Further, in the card connector having the above-mentioned eject mechanism as in the invention according to claim 3, one end of the movable body is a receiving portion corresponding to a contact portion provided on the lever, and the other. The end portion is a connecting portion with the connecting member, and the intermediate portion is swingably supported at a predetermined position of the body, and the connecting member is the first rod body connected to the connecting portion of the movable body. And the first rod, which is held in the first rod in such a manner that the connecting member can reciprocate in the reciprocating direction, and
A second rod body which is constantly urged in the protruding direction by a spring force of an auxiliary spring interposed between the rod body, an engaging portion provided on the first rod body, and an engaging portion provided on the second rod body to the engaging portion. An engaging mechanism configured by an engaged portion that engages in the backward movement direction of the first rod and cannot engage in the forward movement direction, and the second rod has a motion conversion mechanism. A return spring having a spring force larger than the spring force of the auxiliary spring is interposed between the body and the first rod, and the spring force of the return spring causes the first rod to be connected. Is always urged in the direction opposite to the normal urging direction of the second rod by the auxiliary spring, and the second rod is resisted against the spring force of the auxiliary spring in conjunction with the operation of releasing the locked state of the lever. And a second rod returning mechanism that moves the first rod in the retreat direction. It is possible to adopt a configuration that.

[0009]

In the invention according to claim 1, when the card is inserted into the card insertion / removal path of the body, the lever pushed by the end face of the card is swung from the forward position to the standby position and locked at the standby position. It In this way, when the lever reaches the standby position, the engagement / disengagement mechanism engages with the card set at the predetermined position in the insertion / ejection path in association with the operation to prevent the card from being removed. On the other hand, when the locked state of the lever is released, the lever swings from the standby position to the forward position by the force of the spring body to push the card out through the insertion / removal path. In this case, when the locked state of the lever is released, the engagement of the engagement / disengagement mechanism with the card is released accordingly, so that the card is pushed by the lever through the insertion / removal path without obstruction.

In the invention according to claim 2, the engagement / disengagement mechanism includes a movable body that performs a predetermined operation, an engaging member, a connecting member, and a motion converting mechanism. Then, when the movable body is pushed by the contact portion provided on the lever and moves from the non-operating position to the operating position, the connecting member moves forward along the card insertion / removal path in association with the operation, and such connecting member The forward movement is converted into a projecting movement of the engaging member by the action of the motion converting mechanism. Therefore, the engaging member projects to the engaging position and engages with the engaged portion of the card to prevent the card from being withdrawn. When the lever moves away from the standby position and swings slightly toward the forward position, the movable body moves from the operating position to the non-operating position, and in conjunction with this, the connecting member moves back along the card insertion / removal path. To do. Such a return movement of the connecting member is converted into a retreat movement of the engaging member by the action of the motion converting mechanism. Therefore, it becomes possible that the engaging member retreats to the disengagement position and disengages from the engaged portion of the card, and the lever swings from the standby position to the advance position while pushing out the card.

In the invention according to claim 3, the movement of the movable body between the operating position and the non-operating position is performed by swinging the movable body.

The forward movement of the connecting member, which moves forward in association with the movement of the movable body from the non-operating position to the operating position, is transmitted from the first rod to the second rod via the auxiliary spring.
Therefore, in the middle of inserting the card, for example, the engaging member projects until it hits the end surface of the card, and the engaging member slides with the end surface of the card until the card is completely inserted, and the card is completely inserted. When the engaged portion of the card moves to a position corresponding to the engaging member, the engaging member projects to the engaging position by the spring force of the auxiliary spring and engages with the engaged portion of the card.

Further, when the locked state of the lever at the standby position is released, the action of the second rod returning mechanism causes
The second rod retracts from the first rod in opposition to the spring force in association with the release operation of the lever in the locked state. For this reason, the engaging member is retracted to the disengaged position and disengaged from the engaged portion of the card by the action of the motion converting mechanism immediately before the release of the locked state of the lever. Then, the card is pushed out by the lever by the subsequent swing of the lever from the standby position to the forward position. Further, as the lever moves away from the standby position toward the forward position, the spring force of the return spring causes the first rod body to move back to move the movable body from the operating position to the non-operating position. Then, due to the return movement of the first rod, the engaging portion of the first rod engages with the engaged portion of the second rod to move the second rod back.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The overall structure of a card connector according to an embodiment of the present invention is shown in a schematic plan view in FIG.
It is shown schematically in FIG. As shown in these figures, in this card connector, the body 1 is provided with a pin contact group 3 composed of a large number of pin contacts 2 arranged in parallel at a predetermined pitch. In addition, in the body 1,
A pair of left and right arm portions 4 and 5 extending forward are integrally provided, and a card C is provided in a groove portion (not shown in the figure) formed on the inner surface side of each of these arm portions 4 and 5.
By guiding the left and right side edges of the card C through the card insertion / removal path between the pair of arms 4 and 5, the card C
Are to be inserted or ejected.

FIG. 2 is an exploded perspective view of the eject mechanism 6. As shown in FIGS. 1, 2 and 12 to 18, this ejecting mechanism 6 has one end swingably attached to a root portion of one arm portion 4 of the body 1 by a caulking pin 7. It has a first lever body 8 which is a plate-shaped body such as a metal plate. The first lever body 8 has a length extending between the left and right arm portions 4 and 5, and has a spring receiving portion 9 provided at a free end portion thereof and a spring provided at a front end of one arm portion 5. A tension coil spring S1 is provided between the receiving portion 10 and the tension coil spring S1 to constantly urge the first lever body 8 in the forward direction (arrow F in FIG. 1). Here, the forward direction F of the first lever body 8 coincides with the direction along which the card C is pulled out (discharged). Further, an engaging projection 11 for pushing out the card C at the initial stage of card ejection is provided at a position near the swing fulcrum (position of the crimping pin 7) in the first lever body 8. Further, a projecting piece 12 is provided at an intermediate portion of the first lever body 8.

A second lever body 13, which is a plate-shaped body such as a metal plate, is superposed on the back side of the first lever body 8, and the intermediate portions of the lever bodies 8 and 13 are relatively swung by a caulking pin 14. It is freely connected. This second lever body 13
Is slightly shorter than the first lever body 8 and is provided at the base end portion of the first lever body 8 near the swing fulcrum and the spring provided at the rear end portion of the body 1. A tension coil spring S2 is provided so as to extend between the second lever body 1 and the receiving projection 16.
The tip of 3 is always urged in the forward direction F described above. Further, an engaging portion 17 corresponding to the projecting piece 12 of the first lever body 8 is provided at a position near the swing fulcrum (position of the caulking pin 14) of the second lever body 13, and further, the second lever. A stepped protruding piece 18 is formed at the tip of the body 13, and a predetermined gap 19 is formed between the protruding piece 18 and the first lever body 8 (see FIGS. 4 and 5). .

An engaging portion 20 is formed near the free end of the first lever body 8 so as to project to the back side thereof. Figure 4
Further, as shown in FIG. 5, the back surface of the engaging portion 20 is a guide surface 21 which is inclined forward and downward. On the other hand, the second lever body 13 has an engagement hole 22 formed therein. Then, the tip end of the second lever body 13 is relatively swung about its swinging fulcrum so that the tip end of the second lever body 13 is fitted into the back side of the free end of the first lever body 8 from behind. At this time, after the tip portion of the second lever body 13 slides on the guide surface 21, the engaging portion 20 is fitted in the engaging hole 22. Engagement part 2
0 and the front end side 23 of the engagement hole 22 can be engaged with each other. FIG. 4 shows a state in which both are engaged. An engagement protrusion 24 is provided in the engagement hole 22. The engagement protrusion 24 is pushed by the end surface C1 of the card C when the card C is inserted through the card insertion / removal path,
In addition, when the card is ejected, it has a function of hitting the end surface C1 of the card C and pushing the card C backward.

The ejecting mechanism 6 includes the engaging portion 2
An engagement release mechanism 25 for releasing the engagement state between 0 and the front end side 23 of the engagement hole 22 is additionally provided.

FIG. 3 is a perspective view of the engagement releasing mechanism 25, and FIGS. 4 and 5 are operation explanatory views of the engagement releasing mechanism 25. The engagement releasing mechanism 25 includes a slide guide 26, a movable rod 27 that is guided by the slide guide 26 and is moved forward and backward,
A coil spring 28 is provided, and both the slide guide 26 and the movable rod 27 are manufactured by processing a metal plate. The slide guide 26 includes a face plate portion 29,
A holding plate portion 30 having a spring property that is formed by folding back on the outside of the face plate portion 29, and a mounting portion 31 provided on the face plate portion 29.
And have. The disengagement mechanism 25 is held on the outer surface side of the arm portion 5 by inserting the mounting portion 87 into the mounting groove provided in the arm portion 5 of the body 1. On the other hand, the movable rod 27 has a rear end portion formed as an inclined edge 32, a mounting piece portion 34 having a screw hole 33 at the front end portion is formed in an outwardly folded shape, and further, a wide portion 35 is provided at an intermediate portion thereof. A spring receiving portion 36 is provided on the portion 35. In the movable rod 27, the wide portion 35 is slidably held in the front-rear direction by a groove portion (not shown) formed in the outer surface of the arm portion 5 and extending in the front-rear direction, and the rear end portion thereof is the slide guide 26. It is slidably sandwiched between the face plate portion 29 and the holding plate portion 30. Then, as can be seen in FIG. 1, the coil spring 28 moves the movable rod 2
The coil spring 2 is interposed between the spring bearing portion 36 of No. 7 and the spring bearing portion 37 of the arm portion 5.
The movable rod 27 is always urged forward by 8. Further, the sharp rear end portion 38 of the movable rod 27 has the first lever body 8 and the second lever body 1 as shown in FIGS. 4 and 5.
It faces the gap 19 between the protruding piece 18 and the protruding piece 18.

FIG. 6 is a plan view of the structure for operating the disengagement member of the disengagement mechanism 25, that is, the movable rod 27 seen from below, and FIG. 7 is an explanatory view of the same structure.

In FIG. 6, 201 is a shape memory wire (memory wire).
The contraction mode and the expansion mode are switched by the temperature change accompanying the switching between the energized state and the non-energized state, and in the contraction mode, the length is shortened to the length stored in advance,
The decompression mode has the property of increasing the length up to the length stored in advance. 202 is a first terminal, and the shape memory wire 201 is connected to the first terminal 202.
And one end of the lead wire 205 for energizing the shape memory wire 201 are caulked and coupled. Two
Reference numeral 06 denotes a second terminal, and the second terminal 206 has the other end of the shape memory wire 201 and the shape memory wire 20.
The end of the lead wire 209 for energizing 1 is crimped and coupled. The two lead wires 205,
At the remaining ends of 209, terminal type connectors 21
Reference numerals 1 and 212 are crimped and coupled to each other.

As shown in FIG. 6, the first terminal 202 is connected to the movable rod 27 by a metal fastening screw 215 screwed into the screw hole 33 in the mounting piece 34 of the movable rod 27. The second terminal 206 is connected to the body 1 by a metal tightening screw 216 screwed into a screw hole (not shown) of the body 1. Further, the terminal-type connectors 211 and 212 are plugged and connected to the soldering terminals 217 and 218 provided downward on the rear end surface of the body 1.

Next, the ejecting mechanism 6 for inserting the card C through the insertion / removal path of the body 1 is shown in FIGS.
15 to 18 show the operation of ejecting the card C by the eject mechanism 6 by operating the engagement releasing mechanism 25.

In this card connector, the free end portion of the first lever body 8 is constantly urged by the tension coil spring S1 and the tip end portion of the second lever body 13 is always urged by the tension coil spring S2 in the forward direction. Therefore, when the card is not inserted, the first lever body 8 and the second lever body 13 overlap each other as shown in FIG.
The engaging portion 20 of the first lever 8 is fitted in 2. In addition,
At this time, the first lever body 8 engages with a proper position of the body 1 and is positioned with respect to the body 1, and the second lever body 13 engages with the proper position of the first lever body 8 with respect to the first lever body 8. It is positioned.

When the card C is inserted from this state through the card insertion / removal path, the end surface C1 of the card C hits the engaging projection 24 as shown in FIG. 12, and then the second lever 13 is inserted through the engaging projection 24. As a result, the tip of the second lever body 13 is retracted against the force of the tension coil spring S2, and the front end side 23 of the engaging hole 22 is engaged with the engaging portion 20. Then, subsequently, the retracting operation of the tip end portion of the second lever body 13 is transmitted to the free end portion of the first lever body 8 via the engagement portion between the front end side 23 of the engagement hole 22 and the engagement portion 20, The free end of the first lever body 8 is retracted together with the tip of the second lever body 13. In the middle of this operation,
As shown in FIG. 13, the protruding piece 18 of the second lever body 13 slides on the face plate portion 29 of the disengagement mechanism 25 while pushing the face plate portion 29 to the outside as indicated by the arrow X in the figure. And
At the time when the card C is inserted to a proper set position and the individual pin contacts 2 of the pin contact group 3 are individually inserted into the numerous small holes (not shown) in the end surface C1 of the card C, the The protruding piece 18 of the two-lever body 63 rides over the face plate portion 29 of the engagement release mechanism 25, and the front end edge of the protruding piece 18 engages with the end face of the face plate portion 29 as shown in FIGS. 14 and 4. As a result, the second lever body 13 is locked in that position, so that the first lever body 8 moves to the first lever body 8 from the relationship that the engagement between the front end side 23 of the engagement hole 22 and the engagement portion 20 is maintained. It is held at the same position as the 2 lever body 13.
This position is the standby position for the first lever body 8 and the second lever body 13.

Card ejection from this state is performed by moving the movable rod 27 of the engagement releasing mechanism 25 from the returning position to the operating position. Here, the return position of the movable rod 27 is the position shown in FIG. 4, that is, the position where the movable rod 27 is pulled forward by the force of the coil spring 28 and stopped in balance with the tension of the shape memory wire 201. . The operating position of the movable rod 27 is the position shown in FIG. 5, that is, the movable rod 27 is retracted against the force of the coil spring 28, and the inclined edge 32 of the rear end portion 38 of the movable rod 27 is moved to the second position. The protruding piece 18 of the lever body 13
Is a position where the front end 23 of the engaging hole 22 and the engaging portion 20 are released from each other by pushing down.

Such movement of the movable rod 27 from the return position to the operating position can be performed by applying a push operation to the front end portion of the movable rod 27, but here, the shape memory wire 201 is energized. A case will be described below. That is, when the shape memory wire 201 is energized through the lead wires 205 and 209 by applying a voltage to the terminals 217 and 218 shown in FIGS. 6 and 7, the shape memory wire 201 generates heat and switches to the contraction mode and contracts. Then, the front end portion of the movable rod 27 is pulled rearward to retract the movable rod 27 toward the operating position. In this way, when the movable rod 27 reaches the operating position (FIG. 15), the inclined edge 32 of the rear end portion 38 of the movable rod 27 pushes down the protruding piece 18 of the second lever body 13 and engages as shown in FIG. Since the engagement between the front end side 23 of the dowel hole 22 and the engaging portion 20 is released, the free end portion of the first lever body 8 momentarily swings to the forward position by the force of the tension coil spring S1 as shown in FIG. Move. It should be noted that energization of the shape memory wire 201 may be stopped when the engagement between the front end side 23 of the engagement hole 22 and the engagement portion 20 is released,
In the non-energized state, the shape memory wire 201 enters the extension mode and returns to the original length.

By the swinging of the first lever body 8 as described above, the position of the caulking pin 14 swings as shown by an arrow Y as shown in FIG. 16, so that the second lever body 13 moves to the left in the figure. Move a little to. Therefore, the distance in the left-right direction between the caulking pin 14 and the outer end of the protruding piece 18 shown in the figure is N1-N2.
When the length of the second lever body 13 becomes shorter than that of the second lever body 13, the protruding piece 18 of the second lever body 13 is disengaged from the end face of the face plate portion 29 as shown in FIG. The portion swings along the swinging path indicated by the arrow L2 in FIG. 18 to overlap with the back surface side of the first lever body 8 and returns to the initial state in which the engagement hole 23 and the engagement portion 20 are fitted.

In the card discharging operation described with reference to FIGS. 14 to 18, when the free end portion of the first lever body 8 momentarily swings toward the forward position by the force of the tension coil spring S1 as shown in FIG. , The engaging protrusion 11 is the end surface C1 of the card C.
Push out a little. In this case, since the distance between the engagement projection 11 and the swing fulcrum of the first lever body 8 is short, even if a large number of pin contacts 2 are inserted into the card C and a large pulling force is required, the pulling-out is performed. The pushing force commensurate with the force is comfortably applied to the card C. Then, the engaging protrusion 11
As a result, the end surface C1 of the card C is pushed out and the card C is pulled out from the many pin contacts 2, and then the engaging projection 24 of the second lever body 13 pushes out the card C as shown in FIG.

Next, the first lever body 8 of the eject mechanism 6
When the second lever body 13 is locked in the standby position, the card C is prevented from being pulled out, and the locked state of the first lever body 8 and the second lever body 13 is released. A mechanism for allowing the card C to be pulled out (engaging / disengaging mechanism for preventing card removal) will be described with reference to FIGS. 1 and 8 to 11.

The engaging / disengaging mechanism 41 has a movable body 42, an engaging member 43, a connecting member 44, and a motion converting mechanism 45.

The movable body 42 is a cam body whose middle portion is swingably supported by the pin 46 at the rear end corner portion of the body 1, and one end portion of which is provided at the free end portion of the first lever body 8. A receiving portion 48 corresponding to the hitting portion 47 is formed, and the other end portion is formed as a connecting portion 49 with the connecting member 44. The movable body 42 is pushed by the abutting portion 47 when the first lever body 8 reaches the standby position and is moved from the non-operating position (position of FIG. 8) to the operating position (FIGS. 1, 10 and 1).
1 position). On the contrary, it is also possible to move from the operating position to the non-operating position.

The engaging member 43 is provided near the front end portion of the body 1 and can be retracted from the side of the card insertion / removal path. The engaging position for the engaged portion C2 and the disengagement position for the engaged portion C2.
The engagement member 43 is constantly urged in the retreat direction by the spring 50 having a weak force.

The connecting member 44 extends to the first rod 51 connected to the connecting portion 49 of the movable body 42 and to the first rod 51 in the reciprocating movement direction of the connecting member 44 (the direction along the card insertion / removal path). The second rod 52 which is retractably held, and the first
Auxiliary spring 5 interposed between the rod 51 and the second rod 52
3, the engaging portion 54 and the second provided on the first rod 51
In the rod 52, the engaging portion 54 is engaged with the first rod 51 in the backward movement direction (arrow a in FIG. 9) and in the forward movement direction (direction opposite to the arrow a in FIG. 9). The engaging mechanism 56 includes an engaged portion 55 that cannot be engaged. The second rod 52 is connected to the engaging member via the motion conversion mechanism 45.

The motion converting mechanism 45 is composed of an elongated hole 57 provided in the engaging member 43 and an engaging pin 58 provided at the front end portion of the second rod 52 and fitted in the elongated hole 57. When the second rod 52 moves in the card ejecting direction, the engaging pin 58 pushes the engaging member 43 in the projecting direction through the elongated hole 57, and the second rod 52 returns in the card inserting direction. The engaging pin 58 pulls out the engaging member 43 in the retreat direction through the elongated hole 57.

A return spring 59 having a spring force larger than that of the auxiliary spring 53 is interposed between the body 1 and the first rod body 51, and the spring force of the return spring 59 causes the first rod body 51 to move to the first rod body 51. The second rod 52 is always urged in the direction opposite to the normal urging direction.

Reference numeral 61 is a second rod returning mechanism. The second rod returning mechanism 61 includes a projecting piece 62 provided on the movable rod 27 and a receiving piece 63 provided on the second rod 52.
It is composed of and. The second rod return mechanism 61 pushes the movable rod 27 to release the locked state of the first lever body 8 and the second lever body 13 so as to interlock the second rod body 52 with the auxiliary spring 53. It has a function of moving the first rod 51 in the retreat direction against the spring force of the.

Next, the operation of the engagement / disengagement mechanism 41 will be described mainly with reference to FIGS.

The first lever body 8 is pushed together with the second lever body 13 by the end surface of the card C inserted in the card insertion / removal path of the body 1 to swing them from the forward position to the standby position, and the lever bodies 8 and 13 are moved. In the case of locking at the standby position, when the lever bodies 8 and 13 perform the operation of reaching the standby position, the contact portion 47 of the first lever body 8 moves from the position shown by the phantom line in FIG. It retreats like arrow M and pushes the receiving portion 48 of the movable body 42, and the movable body 42 is swung from the non-operating position in FIG. 8 to the intermediate position in FIG. 9 to the operating position in FIG. In the process of swinging the movable body 42 from the non-operating position to the operating position, the first rod 51 is moved forward against the force of the return spring 59, and the first rod 51 is moved forward.
The forward movement of the rod 51 is transmitted to the second rod 52 via the auxiliary spring 53. Therefore, the action converting mechanism 45 causes the engaging member 43 to project from the card insertion / removal path. Here, when the card C is in the middle of insertion, the engaging member 4 is attached to the side surface of the card C by the force of the auxiliary spring 53 as shown in FIG.
Slide the side of card C with 3 hit. Then, as shown in FIG. 10, when the card C is completely inserted,
Since the engaged portion C2 of the card C corresponds to the engaging member 43, the engaging member 43 is acted on by the force of the auxiliary spring 53.
2 is projected to the engagement position with respect to 2 and engages with the engaged portion C2 in the card ejection direction. In this state, the engagement member 43 prevents the card C from being pulled out.

On the other hand, when the movable rod 27 is retracted by energizing the shape memory wire 201, the first
The locked state of the lever body 8 and the second lever body 13 at the standby position is released. At this time, the second rod returning mechanism 61
The projecting piece 62 pushes the receiving piece 63 of the second rod 52 in the backward direction. For this reason, the second rod body 52 resists the spring force of the auxiliary spring 53 in association with the unlocking operation of the first lever body 8 and the second lever body 13, and the first rod body 52 acts as a first arrow M ′ in FIG. Retreat to the rod 51. Therefore, the engagement member 4 is actuated by the action conversion mechanism 45 at a time timing immediately before the locked state of the first lever body 8 and the second lever body 13 is released.
3 is retracted to the disengagement position and disengaged from the engaged portion C1 of the card C. Then, the card C is pushed out by the subsequent swing of the first lever body 8 and the second lever body 13 from the standby position toward the forward position. In addition, the first lever body 8 and the second lever body
As the lever body 13 moves away from the standby position toward the forward position, the spring force of the return spring 53 causes the first rod body 51 to return to move the movable body 42 from the operating position of FIG. 11 to the non-operating position of FIG. Rock. And such a first rod 51
By the return movement of the first rod 51, the engaging portion 54 of the first rod 51 moves to the second rod 52.
The second rod 52 is moved back by engaging with the engaged portion 55.
Note that FIG. 11 shows a state immediately before the locked state of the first lever body 8 and the second lever body 13 is released and the lever bodies 8 and 13 elastically swing from the standby position to the forward position. ing.

[0041]

According to the invention of claim 1, claim 2 or claim 3, while the lever is locked at the standby position, the engaging / disengaging mechanism engages with the card to prevent the card from being pulled out. However, since the engagement / disengagement mechanism is disengaged from the card only when the ejecting operation of the card is started by the eject mechanism, the situation as described at the beginning, that is, while the card is not truly handled by the connector, There is no possibility that the card of the operator set in the card will be forcibly pulled out by another person. Therefore, the present invention is particularly useful for preventing an unexpected theft during the use of an expensive card, for example.

According to the second and third aspects of the invention, an engaging mechanism for card withdrawal is constituted by the four constituent members of the movable body, the engaging member, the connecting member, and the motion converting mechanism, and the connecting mechanism is further connected. Since the member reciprocates in the direction along the card insertion / removal path, there is an advantage that the body does not become so large even if such an engaging / disengaging mechanism is attached to the body.

According to the third aspect of the invention, the forward movement of the connecting member is changed from the first rod to the second movement via the auxiliary spring.
Since it is configured to be transmitted to the rod, the engaging member engages with the card at the time when the card is completely inserted, and the engaging member engages with the non-engaging portion of the card. The operation is surely performed. Further, since the engaging member is disengaged from the non-engaging portion of the card in accordance with the time timing immediately before the card ejecting operation by the eject mechanism is started, the card ejecting operation by the eject mechanism can be reliably performed.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a card connector according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of an eject mechanism.

FIG. 3 is a perspective view of an engagement releasing mechanism.

FIG. 4 is an explanatory view of the operation of an engagement release mechanism.

FIG. 5 is a diagram illustrating the operation of the engagement release mechanism.

FIG. 6 is a plan view of the configuration for operating the movable rod of the disengagement mechanism as seen from below.

FIG. 7 is an explanatory diagram of a configuration for operating a movable rod of an engagement releasing mechanism.

FIG. 8 is an operation explanatory view of the engagement / disengagement mechanism at an initial stage of card insertion.

FIG. 9 is an operation explanatory view of the engagement / disengagement mechanism at an intermediate stage of card insertion.

FIG. 10 is a diagram for explaining the operation of the engagement / disengagement mechanism at the stage when the card insertion is completed.

FIG. 11 is an operation explanatory view of the engagement / disengagement mechanism immediately before the locked state of the lever is released.

FIG. 12 is an explanatory diagram showing the operation of the eject mechanism at the initial stage when a card is inserted.

FIG. 13 is an explanatory diagram showing the operation of the eject mechanism at an intermediate stage when a card is inserted.

FIG. 14 is an explanatory diagram showing a state where the eject mechanism is locked by inserting the card.

FIG. 15 is an explanatory diagram showing a state at the time of starting the operation of the engagement release mechanism at the time of card ejection.

FIG. 16 is an explanatory diagram showing a state immediately before the locked state of the eject mechanism is released during card ejection.

FIG. 17 is an explanatory diagram showing a state in which the locked state of the eject mechanism at the time of card ejection is released.

FIG. 18 is an explanatory view showing the operation of the final stage of the eject mechanism during card ejection.

[Explanation of symbols]

1 body 6 eject mechanism 8 First lever body (lever) 13 Second lever body (lever) 41 Engagement mechanism 42 Movable body 43 Engagement member 44 Connection member 45 Motion conversion mechanism 47 Hit part 48 Receiver 49 Connection 51 first rod 52 Second rod 53 Auxiliary spring 54 Engagement part 55 Engagement part 56 Engagement mechanism 59 Return spring 61 Second rod return mechanism Edge of C1 card C2 Engagement part S1, S2 tension coil spring (spring body)

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G06K 17/00 G06K 13/06

Claims (3)

(57) [Claims] 1. A lever that is swingably attached to a body that forms a card insertion / removal path with a predetermined point as a fulcrum, and is pushed from the forward position by being pushed by the end surface of the card that has been inserted into the insertion / removal path. The card is rocked to the standby position and locked at the standby position, while the lever is rocked by the force of the spring body from the standby position to the forward position as the locked state is released, and the card is inserted into the insertion / removal path. In a card connector equipped with an eject mechanism that pushes out through the card, the card is inserted into the insertion / removal path in conjunction with the operation of the lever reaching the standby position and engaged with the card set at the predetermined position to remove the card. It has an engagement / disengagement mechanism for preventing card withdrawal, which prevents the card from being engaged with the card as the lever is unlocked. Card connector having a eject mechanism, wherein the door. 2. A movable body, wherein an engagement / disengagement mechanism for preventing card ejection is moved from a non-operating position to an operating position by being pushed by a contact portion provided on the lever when the lever reaches a standby position, and a card. An engaging member capable of retracting from the engaging and disengaging position with respect to the engaged portion and a disengaging position with respect to the engaged portion, and an inoperative position and operation of the movable body. The connecting member, which reciprocates in the direction along the card insertion / removal path in conjunction with the movement between the position and the position, connects the connecting member and the engaging member, and reciprocates the connecting member to move the engaging member back and forth. A card connector provided with an eject mechanism according to claim 1, further comprising: 3. The movable body has one end serving as a receiving portion corresponding to a contact portion provided on the lever and the other end serving as a connecting portion with a connecting member, and an intermediate portion of the movable body. The connecting member is swingably supported at a predetermined position, and the connecting member is held by the first rod connected to the connecting portion of the movable body and the first rod so that the connecting member can move back and forth in the reciprocating direction of the connecting member. In addition, the second rod that is constantly urged in the protruding direction by the spring force of the auxiliary spring that is interposed between the first rod and the engaging portion provided on the first rod and the second rod. An engaging mechanism constituted by an engaged portion which is engaged with the joint portion in the backward movement direction of the first rod body and is not engageable with the forward movement direction thereof, and the second rod body has a motion conversion. It is connected to the engaging member through a mechanism, and is connected between the body and the first rod. A return spring having a spring force larger than the spring force of the auxiliary spring is interposed, and the spring force of the return spring constantly urges the first rod body in the direction opposite to the normal urging direction of the second rod body and the lever. of 請 in conjunction with the operation of releasing the locked state of the second rod member Ru comprises a second rod backward mechanism that moves in the retreating direction relative to the first rod against the spring force of the auxiliary spring Motomeko 2 A card connector having the eject mechanism described.