JP3273233B2 - Eject device for card connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ejecting device for a card connector, and more particularly, to a card connector such as an IC card, which is a counterpart of the card connector, whether or not the card is inserted into the connector. The present invention relates to an ejecting device that allows the operating stem to be retracted into an operating stem mounting port such as a panel of the ejecting device or a device equipped with the ejecting device when it is not necessary to discharge the ejecting device from the connector.

[0002]

2. Description of the Related Art Ejecting devices for card connectors include:
Insert the card into the connector and set it in the proper position.
A function of retreating from the set position to the discharge position is required. The setting position is the insertion position of the card when the terminal on the card side is appropriately electrically connected to the terminal on the connector side. For example, when a large number of pin terminals are arranged in a row on the connector side, and a large number of insertion holes accommodating terminals connectable to those pin terminals are arranged in a row on the front end surface of the card, the card is inserted into the connector. The position of the card when the pin terminal on the connector side is completely inserted into the insertion hole of the card is the set position. In this case, the ejecting device ejects the card at the point where the pin terminal on the connector side comes out of the insertion hole of the card and the contact pressure between the pin terminal and the terminal on the connector side is released. The position of the card corresponds.

As an ejecting device having the above-described function, when the operating stem is pushed in from its initial position and moved forward, a swinging member which is pushed by the operating stem and swings moves the card from the set position to the ejection position. It is known to be able to retreat. In the conventional eject device, when the card is inserted to the setting position of the connector, the operating stem is pushed back by the swinging member pushed and swung by the card, whereby the operating stem is returned to the initial position. I was coming back.

[0004]

In such a conventional ejecting device, the base of the operating stem, which is a part to be pushed by the finger of the hand when ejecting the card, is moved when the operating stem is at the initial position. However, since the card protrudes from an operation stem mounting port such as a panel of the eject device or a device equipped with the eject device by at least a pushing allowance required for ejecting the card from the set position to the eject position, it protrudes. The card in the set position may be accidentally pushed back to the ejection position by accidentally pushing the base of the operating stem protruding from the operating stem mounting opening by the pushing allowance. there were.

The present invention has been made in view of the above circumstances, and only when it is necessary to eject a card from a connector, the operating stem protruding from the operating stem mounting opening by the pushing allowance is pushed into the card. When the card is not set at the set position, or when it is not necessary to eject the card even if the card is set at the set position, the operation stem is retracted to the operation stem mounting hole. An object of the present invention is to provide a card connector ejecting device that can be inserted.

[0006]

According to a first aspect of the present invention, there is provided an ejecting device for a card connector, which includes a retractable operation stem for retracting a card set in the connector from a set position to a discharge position, and an extendable operation stem. A stem holder that movably holds the operating stem in a forward direction away from the initial position and a backward direction toward the initial position, a spring body that constantly biases the operating stem in the backward direction,
When the operating stem moves forward to a first position away from the initial position by a distance capable of retracting the card located at the set position to the ejection position, the operating stem is held in an extended state, and the operation is performed. An operating stem control mechanism that releases the extended holding state of the operating stem and allows the operating stem to contract while the stem moves forward from the first position to reach the second position; A lock mechanism interposed between the operating stem and the stem when the operating stem moves along a reciprocating movement path that returns from the initial position to the initial position via the first position and the second position. The first locked state in which the operating stem is positioned at the initial position, and the extended holding state by the operating stem control mechanism is released during the forward movement from the first position to the second position, and the storage is performed. Allow to have the operation stem becomes possible third switches and the second locked state for positioning in a position, in alternate between the first position and the second position described above, is that.

In this ejecting device, when the lock mechanism is in the first locked state, the operating stem is located at the initial position, and when the operating stem is pushed from the initial position to the first position to move forward, the operating stem is operated. The operating stem is held in the extended state by the stem control mechanism. Therefore, when the operating stem is pushed from the initial position to the first position, the operating stem moves forward by a distance that allows the card at the set position to be retracted to the ejection position while the operating stem is extended. Therefore, the card at the set position can be retracted to the ejection position by moving the operation stem from the initial position to the first position.

When the operating stem that has reached the first position is further pushed in and moved forward, the operating stem control mechanism releases the extended and held state, and the operating stem that has become contractible is moved to the second position.
Reach position. When the operating stem which has reached the second position attempts to return to the initial position by the force of the spring body, the lock mechanism switches to the second locked state, whereby the operating stem is moved between the first position and the second position. It is positioned at the third position. The third position of the operating stem is located closer to the forward movement direction of the operating stem than its initial position. Since the operation stem positioned at the third position can be contracted, when inserting the card to the set position, the card can be inserted while contracting the operation stem by the insertion force of the card.

When the lock mechanism switches to the first locked state after the operating stem reaches the third position, the operating stem returns to the initial position and is positioned at that position. And
By pushing the operating stem from the initial position, the above-described series of operations is repeated.

According to a second aspect of the present invention, in the card connector ejecting device according to the first aspect, the operating stem is divided into a main stem and a sub-stem in a moving direction thereof, and the sub-stem is provided with respect to the main stem. The operating stem is made expandable and contractable by retracting, and the biasing force of the spring body is applied to the main stem, and the operating stem control mechanism reduces the elasticity extended from the sub-stem. A stepped engaging portion provided on the main stem side and capable of engaging with the tip of the engaging piece in the forward movement direction and not engaging in the backward movement direction. And the operating stem, which is provided at a fixed position on the stem holder side and is held in an extended state by the engagement portion engaging the tip of the engagement piece, moves forward from the first position to the second position. On the way to A sliding portion that lifts the tip against the elasticity of the engaging piece and detaches from the engaging portion to release the extended holding state of the operating stem, thereby allowing the operating stem to contract, When the operating stem, which has been released from the extended holding state and has become contractible, is returned from the second position to the initial position, the sub-stem of the sub-stem is closer to the forward movement direction than the engaging portion of the main stem. And a stopper for positioning the sub-stem so that the tip of the engagement piece is located.

According to this ejecting device, the extendable operation stem can be composed of two members, the main stem and the sub-stem. Further, the operating stem control mechanism is composed of four parts: an engaging piece on the sub-stem side, an engaging part on the main stem side, a sliding part on the stem holder side, and a stopper. Can be simplified, and the configuration can be further simplified by providing the stopper on the stopper holder side.

According to a third aspect of the present invention, in the card connector ejecting device according to the first or second aspect, the lock mechanism has a first engaging portion and a first engaging portion which are spaced from each other in a moving direction of the operating stem. The second engaging portion and the first
A lock mechanism main body having a loop-shaped guide groove passing through the engagement portion and the second engagement portion; and a guide pin inserted into the guide groove of the lock mechanism main body. Either one is provided separately to the main stem and the other is provided separately to the stem holder, and the guide groove of the lock mechanism body is
A stepped guide portion is provided which guides the guide pin only in one direction within the guide groove portion by a relative movement in the movement direction between the guide groove portion and the guide pin inserted into the guide groove portion, That is.

The lock mechanism having this configuration utilizes a so-called heart cam, and has a simple configuration and performs a reliable operation.

According to a fourth aspect of the present invention, in the card connector ejecting device according to any one of the first, second, and third aspects, the stem holder is provided with:
The connector is molded of synthetic resin integrally with a body forming a card set space, the forward movement direction of the operation stem coincides with the insertion direction of the card into the card set space, and the backward movement direction is the same. That is, it matches the retreat direction of the card with respect to the card set space.

With this arrangement, the connector body and the eject device can be arranged side by side, so that the length of the connector provided with the eject device is reduced.

According to a fifth aspect of the present invention, there is provided the card connector ejecting device according to the fourth aspect, wherein:
A swing member having a force point and an action point on both sides of a swing fulcrum provided on the connector side is provided. The swing member is provided with the operating stem held in an extended state by the operating stem control mechanism in an initial position. From the first position to the first position,
The point of force is pushed by the sub-stem, and the point of action pushes the card at the set position to the ejection position to retreat.

In this way, by appropriately determining the position of the swing fulcrum of the swing member, the pushing force of the operating stem required for ejecting the card can be adjusted by the leverage principle.

According to a sixth aspect of the present invention, there is provided the card connector ejecting device according to the fifth aspect,
When the operating point of the swing member is pushed by the card inserted to the set position when the extended holding state of the operation stem is released by the operation stem control mechanism and the contraction can be performed, The point of force of the swing member is adapted to hit the sub-stem.

By doing so, the operation stem contracts in conjunction with the operation of pushing the card into the set position.

[0020]

FIG. 1 is an exploded perspective view of a card connector B integrally provided with an ejecting device A according to an embodiment of the present invention. FIG. 2 is an enlarged exploded view for explaining the ejecting device A. FIG. 3 is a perspective view, and FIG.
FIGS. 4 to 4 are explanatory views showing the structure of a lock mechanism R used in FIG.
FIG. 8 is an explanatory diagram of the operation of the ejecting device A.

The card connector B has a shield frame 81 suspended between a pair of left and right arms 82, 83 arranged at an interval, and the arm 8
A head 85 having a large number of terminal pins 84 arranged in a row is fitted into and coupled to the end portions of the body B1 of the connector B by the arms 82, 83 and the head 85. Is formed, and a space surrounded by the arms 82 and 83 and the head 85 is a card set space S. The arm 82,
83 has guide grooves 87, 88 and a card insertion slot 89. When a card (not shown) is inserted from the card insertion slot 89 through the guide grooves 87, 88, the cards are lined up on the front end surface of the card. The terminal pins 84 are inserted into a number of insertion holes. A terminal that contacts the terminal pin 84 is accommodated in the insertion hole provided in the card. Then, the position of the card when the pin terminal 84 is completely inserted into the insertion hole of the card becomes the card setting position. Further, a shield frame 86 is mounted on the head section 85.

Next, the ejecting device A will be described.

In FIG. 2, the stem holder 1 is formed of synthetic resin integrally with one of the arms 83 constituting the body B1. The stem holder 1 includes a groove 11 extending over the entire length in the longitudinal direction, a stopper 12 having a surface protruding stepwise at an intermediate portion of the groove 11, a recess 13 connected to the groove 11, and a recess 13 described later. And a recessed portion 14 for attaching a lock mechanism R to be provided. Further, the sliding portion 15 is formed at the front end of the groove 11 from the bottom wall thereof.
Is bulging.

As shown in FIG. 1, the operating stem 2 is movably held in the groove 11 of the stem holder 1 in the forward direction (arrow a) and the backward direction (arrow b). The operating stem 2 is divided into a main stem 3 and a sub-stem 4 in the moving direction (forward direction a or backward direction b).
The operation stem 2 can be extended and retracted by the sub-stem 4 moving back and forth with respect to the main stem 3.

The main stem 3 is made of a synthetic resin molded body. The spring receiving portion 31 is slidably received in the recess 13 and the main stem 3 is located between the spring receiving portion 31 and the front wall of the recess 13. The main stem 3 is constantly urged in the reciprocating direction b by the spring body 32. A stepped engagement portion 33 is provided near the tip of the main stem 3. The sub-stem 4 is formed by performing a bending process or the like on a metal plate. The sub-stem 4 has, at its tip, a contact piece 41 corresponding to a swinging member 7 to be described later, and an engaging piece 42 having a resiliently inclined posture and extending in the reciprocating direction b. And a projecting piece 43 extending in the movement direction b.
It is supported.

The lock mechanism R will be described with reference to FIGS. The lock mechanism R utilizes a so-called heart cam, and has a lock mechanism main body 5 and a guide pin 6. As shown in FIG. 1, the lock mechanism main body 5 is formed on the main stem 3. As shown in FIG. 3, the lock mechanism main body 5 includes a first engagement portion 51 and a second engagement portion 5 which are spaced from each other in the movement direction (arrows a and b) of the operation stem 2.
2 and a loop-shaped guide groove 53 passing through the first engagement portion 51 and the second engagement portion 52. On the other hand, as shown in FIG. 2, the guide pin 6 has its base 65 loosely fitted in the hole 62 of the pin receiving member 61, and the spring piece 63 and the support plate portion 64 of the pin receiving member 61.
, So as to be swingable about the base 65. The pin receiver 61 holding the guide pin 6 is fixed to the recessed portion 14 of the stem holder 1 in a fitting manner, and the tip 66 of the guide pin 6 is inserted into the guide groove 53 of the lock mechanism body 5. Has been inserted. Stepped guides 54 to 57 are provided at a plurality of positions of the guide grooves 53 of the lock mechanism main body 5, and by the action of these guides 54 to 57, the lock mechanism main body 5 When the operating stem 2 reciprocates relatively in the moving direction (arrows a and b), the tip 66 of the guide pin 6 moves in one direction in the order of arrows R1, R2, R3, and R4 in FIG. It is guided only and does not move in the opposite direction.

As shown in FIGS. 1 and 3, the position of the operating stem 2 when the distal end 66 of the guide pin 6 is engaged with the first engaging portion 51 of the guide groove 53 by the urging force of the spring body 32. In the initial position, the rear end 35 of the main stem 3 corresponding to the base of the operation stem 2 projects rearward of the stem holder 1. When the main stem 3 is positioned as shown in FIG. 1 and the projecting piece 43 of the sub-stem 4 is in contact with the stopper 12, the tip of the engaging piece 42 of the sub-stem 4 is 33 is located on the side of the forward movement direction a. FIG. 1 shows a state in which the tip of the engagement piece 42 is in contact with the engagement portion 33.

The operating portion control mechanism D is constituted by the engaging portion 33, the engaging piece 42, the sliding portion 15, and the stem 12 described above. The operating stem control mechanism D switches the operating stem 2 composed of the main stem 3 and the sub-stem 4 into a mode for holding the extended state and a mode for releasing the extended holding state and allowing the operating stem 2 to contract. It has a switching function, and its specific operation will be described later in detail.

In the embodiment described above, the forward direction a of the operating stem 2 corresponds to the insertion direction of the card into the card set space S, and the backward direction b thereof corresponds to the backward direction of the card with respect to the card set space S. Match.

The swinging member 7 has an intermediate portion swingably mounted on the shield frame 86 with the pin 71 as a swinging fulcrum. A force point 72 is formed at one end and an action point 73 is formed at the other end. ing. By attaching the shield frame 86 to the head portion 85, the action point 73 of the swinging member 7 is exposed to the card set space S through an opening 91 formed in the head portion 85 so as to be able to move back and forth. At the same time, the power point 72 faces the contact piece 41 of the sub-stem 4.

Next, referring to FIGS. 4 to 8, the ejecting device A, the operating stem control mechanism D and the lock mechanism R
The operation such as will be described.

The ejection device A shown in FIGS. 4A and 4B is in the same state as the ejection device A shown in FIG. That is, the guide pin tip 66 is engaged with the first engagement portion 51 of the guide groove 53 by the urging force of the spring body 32, and the operation stem 2 is located at the initial position. At this time, the lock mechanism R is in the first locked state.
Further, the action point 73 of the swing member 7 is pushed by the card C inserted at the set position, is retracted out of the card setting space S, and the force point 72 of the swing member 7 is As shown in FIG. 4C, the projecting piece 43 of the sub-stem 4 contacts the stopper 12. The tip of the engagement piece 42 of the sub-stem 4 abuts on the engagement portion 33 of the main stem 3. This allows
The operation stem 2 is formed by the cooperation of the engagement piece 42 and the engagement portion 33.
Are held in an extended state.

When the rear end 34 of the main stem 3 is pushed in from the state described in FIG. 4 as indicated by an arrow P1 in FIG.
Since the operating stem 2 moves forward in the extended holding state, the contact piece 41 of the sub-stem 4 pushes the power point 72 of the swing member 7 to swing the point of action 73 around the swing pin 71. As a result, the action point 73 protrudes into the card setting space S, and the card C is pushed by the action point 73 and retreats as indicated by the arrow B1. The position of the card C retracted in this way is the ejection position of the card C, and the card C is pulled out of the connector B by hand from this ejection position. When the card C is retracted to the discharge position, a large number of insertion holes (not shown) arranged in the front end face of the card C are provided.
Are a number of terminal pins 8 arranged in a row on the head 85.
(See FIG. 1), and the card-side terminals (not shown) housed and held in the insertion holes are separated from the terminal pins 84. In order to retreat the card C from the set position to the ejection position via the rocking member 7, the position of the operating stem 2 moved forward from the initial position is set to the first position of the operating stem 2. It is. When the operating stem 2 is pushed down to the first position, FIG.
The distal end 66 of the guide pin 6 is separated from the first engaging portion as shown in FIG. 5B, and the sub-stem 4 as shown in FIG.
Projecting piece 43 is separated from the stopper 12.

As described with reference to FIG.
When the operating stem 2 is continuously moved forward after reaching the position, the sliding portion 15 provided on the stem holder 1 abuts on the back side of the engagement piece 42 during the forward movement. After that, the engagement piece 42 is lifted against the elasticity.
For this reason, the tip of the engaging piece 42 is lifted up and detached from the engaging portion 33, whereby the extended and held state of the operating stem 2 is released, and the operating stem 2 can be contracted. Therefore, the forward movement of the operation stem 2 after the extension holding state is released (the arrow P2 in FIG. 6A) causes the operation stem 2 to move as shown in FIGS.
As described above, the tip end of the engaging piece 42 is located on the side of the backward movement direction b with respect to the engaging portion 33. At this time, the rear end 34 of the main stem 3 does not protrude from the rear end of the stem holder 1. In this embodiment, this position is determined as the second position of the operation stem 2. Therefore, the operation stem 2 is not moved forward beyond the second position. When the operation stem 2 reaches the second position, the distal end 66 of the guide pin 6 separated from the first engagement portion 51 as shown in FIG.
However, it is located further rearward than the second engagement portion 52.

When the pushing force is released after the operating stem 2 has been moved forward to the second position, the operating stem 2 is moved back by the urging force of the spring body 32. In this case, since the urging force of the spring body 32 is applied to the main stem 3, only the main stem 3 moves backward as shown by the arrow Q1 in FIG. When the main stem 3 moves back as indicated by the arrow Q1, the guide pin tip 66 engages with the second engaging portion 52 as shown in FIG. 7B. The position of the operation stem 2 at this time is the third position, and the lock mechanism R at this time is in the second locked state. Since the third position is a position between the first position and the second position, when the operating stem 2 is located at the third position, the stem of the rear end portion 34 of the main stem 3 The amount of protrusion H2 from the holder 1 is equal to the amount of protrusion H1 at the initial position (FIG. 4).
(See (a)).

When the operating stem 2 is located at the third position, as shown in FIG. 7B, the tip of the engaging piece 42 lifted by the sliding portion 15 engages with the engaging portion 33. Emerging so as not to. Therefore, the secondary stem 4
Can move independently in the forward movement direction a and in the backward movement direction b independently of the main stem 3. The amount of projection of the main stem 3 from the stem holder 1 at this time is the same as the amount of projection H2 shown in FIG.

Next, as shown in FIG. 8 (a), when the card C is inserted to the set position of the card setting space S of the connector B, the action point 7 of the swing member 7 is moved by the card C.
3, the power point 72 of the swinging member 7 hits the contact piece 41 of the sub-stem 4 and moves the sub-stem 4 in the reciprocating direction b via the contact piece 41. Therefore, FIG.
As shown in (c), the engagement piece 43 hits the stopper 12 and the sub-stem 4 is positioned at that position.

When ejecting the card C inserted at the set position as shown in FIG. 8A, the rear end 34 of the main stem 3 is pushed twice. That is, the arrow P3 in FIG.
When the pressing force is released after the first pressing shown in FIG. 3, the tip 66 of the guide pin 6 is moved to the arrow R3, R in FIG.
4 and reaches the first engagement portion 51, whereby the main stem 3 is moved back by the urging force of the spring body 32 as indicated by an arrow Q2 in FIG. The mating portion 33 is located on the backward movement direction b side of the tip of the engagement piece 42, and the operation stem 2 is switched to the extended state. Therefore, when the second pressing is performed, the operation described with reference to FIG. 4 is performed, and the card C is ejected.

Although the ejecting device according to the above-described embodiment employs a lock mechanism using a heart cam as described with reference to FIG. 3, other types of lock mechanisms may be employed. It is possible. For example, a mechanism such as that used in a push-push switch described in Japanese Utility Model Publication No. 38-13222, that is, a shaft (operating stem) biased in one direction by a spring body is described above. First locked state and second locked state
A mechanism capable of alternately switching to the locked state can be employed. Further, a lock mechanism such as that employed in the push switch described in Japanese Utility Model Laid-Open No. 50441/1985, that is, one of two members overlapping via an annular saw tooth portion. By pressing, it is possible to adopt a lock mechanism in which the meshing position of those members moves to alternately switch between the first locked state and the second locked state. In addition, a lock mechanism such as a combination of a leaf spring, a coil spring, an engaging member, and the like described in Japanese Patent Application Laid-Open No. 7-212391,
It is also possible to employ a lock mechanism as described in Japanese Patent Application Laid-Open Publication No. H11-209,873.

[0040]

According to the present invention, only when it is necessary to eject the card from the connector, the card can be ejected by pushing in the operating stem protruding from the operating stem mounting opening by the pushing allowance. When the card is not set at the set position, or when it is not necessary to eject the card even if the card is set at the set position, the operation stem can be kept in the retracted state. This has the effect of preventing the operation stem from sticking out when it is not necessary to eject the card, and preventing accidental ejection of the card at the set position due to accidentally pushing the extended operation stem. is there.

Further, according to the present invention, not only can an ejecting device exhibiting the above-mentioned effects be provided at a low cost with a simple configuration, but also a connector integrally provided with such an ejecting device can easily be miniaturized. Achieved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a card connector integrally provided with an ejection device according to an embodiment of the present invention.

FIG. 2 is an enlarged exploded perspective view of the ejection device.

FIG. 3 is an explanatory view showing a structure of a lock mechanism.

FIG. 4 (a) is an operation explanatory view when the ejecting device is viewed in a plan view when the operation stem is located at an initial position. (B) is an operation explanatory view showing a section along a line IVb-IVb of (a) in a cross section. (C) is a principal part enlarged plan view showing the positional relationship between the engagement piece and the stopper.

FIG. 5A is an operation explanatory diagram of the ejector when the operation stem is located at a first position when the ejector is viewed in a plan view. (B) is an operation explanatory view showing a section along a Vb-Vb line of (a) in a cross section. (C) is a principal part enlarged plan view showing the positional relationship between the engagement piece and the stopper.

FIG. 6 (a) is an operation explanatory view when the ejecting device is viewed in a plan view when the operation stem is located at the second position. (B) is an operation explanatory diagram showing a section along a VIb-VIb line of (a) in cross section.

FIG. 7A is an explanatory diagram of an operation when the ejecting device is viewed in a plan view when the operation stem is located at a third position. (B) is an operation explanatory view showing a section along a line VIIb-VIIb of (a) in a cross section.

FIG. 8A is an explanatory diagram of an operation when the ejecting device when the card is inserted into the set position is viewed in a plan view. (B) is an operation explanatory diagram showing a section along a line VIIIb-VIIIb of (a) in a cross section.

[Explanation of symbols]

 A Ejecting device B Card connector C Card D Operating stem control mechanism R Lock mechanism S Card set space a Forward direction b Backward direction 1 Stem holder 2 Operating stem 3 Main stem 4 Secondary stem 5 Lock mechanism body 6 Guide pin 7 Swinging member 12 stopper 15 sliding portion 32 spring body 33 engaging portion 42 engaging piece 51 first engaging portion 52 second engaging portion 53 guide groove portion 54 to 57 guide portion 72 force point 73 action point

Claims (6)

(57) [Claims] 1. An extendable operation stem for retracting a card set in a connector from a set position to a discharge position, a forward movement direction separating the operation stem from an initial position, and a return direction moving toward the initial position. A stem holding body that movably holds the card, a spring body that constantly urges the operating stem in the returning direction, and a distance that allows the operating stem to retreat the card located at the set position to the ejection position. Only when the operating stem moves forward to the first position away from the initial position, the operating stem is maintained in the extended state, and while the operating stem moves forward from the first position to reach the second position, the operating stem moves downward. An operating stem control mechanism for releasing the extended holding state to allow the operating stem to contract, and a lock mechanism interposed between the stem holding body and the operating stem. Comprising a said lock mechanism, first from the operating stem the initial position
When moving along the reciprocating movement path returning to the initial position via the position and the second position, a first locked state in which the operating stem is positioned at the initial position, and a halfway movement from the first position to the second position. A second locked state in which the operating stem, which has been released from the extended holding state by the operating stem control mechanism and is contractible, is positioned at a third position between the first position and the second position. An ejecting device for a card connector, characterized in that the ejecting device can be switched to 2. The operating stem is divided into a main stem and a sub-stem in a moving direction thereof, and the operating stem can be extended and retracted by moving the sub-stem with respect to the main stem. A biasing force of a spring body is applied to the main stem, and the operating stem control mechanism is provided on the main stem side with an engaging piece having a resilient inclination and extending from the sub-stem and engaging the main stem. A stepped engaging portion that can be engaged with the tip of the piece in the forward movement direction and cannot be engaged in the backward movement direction, and a fixed position on the stem holder side; The operating stem held in the extended state by engaging with the tip of the mating piece moves forward from the first position and moves to the second position.
On the way to the position, the tip of the engaging piece is lifted against the elasticity of the engaging piece and detached from the engaging portion, thereby releasing the extended holding state of the operating stem and allowing the operating stem to contract. When the operating portion and the operating stem, which has been released from the extended holding state and is retractable, are returned from the second position to the initial position, the operating stem is closer to the forward movement direction than the engaging portion of the main stem. 2. The card connector ejecting device according to claim 1, further comprising: a stopper for positioning the sub-stem so that the tip of the engagement piece of the sub-stem is positioned. 3. A loop in which a lock mechanism passes through a first engaging portion, a second engaging portion, and the first engaging portion and the second engaging portion, which are located at intervals in a moving direction of the operation stem. A lock mechanism main body having a groove-shaped guide groove, and a guide pin inserted into the guide groove of the lock mechanism main body, wherein one of the lock mechanism main body and the guide pin is a main stem, and the other is a stem holder. The guide pin is provided in the guide groove of the lock mechanism body, and the guide pin is inserted into the guide groove by the relative movement of the guide groove and the guide pin inserted in the guide groove in the moving direction. The ejector for a card connector according to claim 1 or 2, further comprising a stepped guide portion for guiding in only one direction inside the card connector. 4. The card holder according to claim 1, wherein the stem holding body is formed of a synthetic resin integrally with a body of the connector forming a card setting space, and a forward movement direction of the operating stem is inserted into the card setting space. And a return direction corresponding to the backward direction of the card with respect to the card set space.
2. The card connecting device according to any one of claims 1 to 3. 5. A swing member having a force point and an action point on both sides of a swing fulcrum provided on the connector side, wherein the swing member is held in an extended state by the operating stem control mechanism. 5. The system according to claim 4, wherein, when the operating stem moves from the initial position to the first position, the power point is pushed by the sub-stem, and the point of action pushes the card at the set position to the ejection position to retreat. Ejection device for the card connector. 6. When the operating point of the swing member is pushed by the card inserted to the set position, when the operating stem control mechanism releases the extended holding state of the operating stem and allows the operating stem to contract. 6. An ejecting device for a card connector according to claim 5, wherein a point of force of said swing member hits said sub-stem accordingly.