JP2014086409A - Card connector with eject function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a card connector with an eject function in which a delay switch is operated without requiring any other operation which is not a direct operation for card ejection, and the delay switch is operated stably.SOLUTION: A delay switch is operated by detecting an operation of an eject bar member. In the operation of the bar member, a clearance (fixed distance) is provided between a detection position to operate the delay switch and a position to eject a card. The bar member is prevented from being separated from a card connector, thereby preventing operation instability caused by a size difference or the like of the bar member.

Description

  The present invention relates to a card connector for connecting a card such as an IC card to a substrate, and relates to a card connector with a taking-out function that can take out the card by a simple operation.

  A card connector for connecting a card such as an IC card to a board is known to have a take-out function capable of taking out the card by moving the eject bar in a straight line (inserted inward of the card connector). Yes.

  These card connectors with a take-out function are provided with a member for pushing out the card in conjunction with the movement of the eject bar, and a card take-out detection switch for detecting that the card has been taken out.

However, in these card connectors with a take-out function, the timing at which the card is taken out is close to the timing at which a signal indicating that the card has been taken out by the card take-out detection switch is transmitted.
The reading and writing of the card contents by the device using the card should be stopped before the card is taken out, but the card may be taken out before the device receives the signal and stops reading and writing. In this case, there is a possibility that a failure such as loss of information stored in the card occurs.
This problem occurred particularly when signal reception was slower than card removal.

  In order to solve the above-described problem, a method for transmitting a signal indicating the card removal with a sufficient time before card removal using a switch (delay switch) different from the card removal detection switch has been disclosed. For example, Patent Document 1 discloses a delay switch that transmits a signal when the card ejection lever is unlocked, and Patent Document 2 discloses a push-push type card connector when a card is pushed in before being taken out. A delay switch for transmitting a signal has been disclosed.

However, those disclosed in Patent Document 1 and Patent Document 2 operate the delay switch by another operation that is not a direct operation for taking out the card, and the eject bar does not require such another operation. It was not possible to use in a card connector with a take-out function that can take out a card by moving the card linearly.
In this specification, the “operation” of the switch includes both “transition from the on state to the off state” and “transition from the off state to the on state”. In the present invention, it is important that a signal indicating that the state has changed is transmitted, and whether the switch state is on or off is determined as a design matter.

  The applicant has invented an invention in which a delay switch is operated by detecting insertion of an operation pin in a card connector with a removal function for removing a card by inserting the operation pin. This invention is disclosed in Patent Document 3.

  In Patent Document 3, an operation pin separated from a card connector with a take-out function is inserted. For this reason, although it is a rare case, when an operation pin having a size different from the designed operation pin is inserted, the delay switch may not operate stably.

JP 2003-203209 A JP 2007-027030 A JP 2012-146487 A

  The problem to be solved is a card connector with a take-out function that operates a delay switch without requiring another action that is not a direct action for taking out the card, and the delay switch operates stably. Is to provide.

(Invention of Claim 1)
The card connector with a take-out function of the present invention is
A card connector with an ejecting function, which comprises a bar member for ejecting, and can remove the card by linearly moving the bar member from the card use position to the card removal position,
A bar operation detection switch and a card removal detection switch are provided.
There are a bar operation detection position for operating the bar member operation detection switch and a card detection position for operating the card extraction detection switch while the bar member is moved from the card use position to the card removal position. ,
When the bar member is closer to the card use position than the bar action detection position, the bar action detection switch does not operate,
When the bar member is closer to the card use position than the card detection position, the card removal detection switch does not operate,
The bar operation detection position is closer to the card use position than the card detection position,
A clearance is provided between the bar motion detection position and the card detection position for causing the bar member to move for a certain period of time,
A bar member holding mechanism for preventing separation of the bar member from the card connector is provided.

According to the above configuration, when the eject bar member is moved from the card use position to the card removal position for card removal, first, the bar action detection switch operates at the bar action detection position. Thereafter, the card detection position is reached through a clearance (a fixed distance), and the card removal detection switch operates.
Until the card detection position is reached, the card is correctly inserted. There is a time required to move at least the clearance until the card removal is started after the bar operation detection switch is operated. The bar operation detection switch functions as a delay switch.

  Due to the bar member holding mechanism, it is impossible to insert another object instead of the bar member at the position of the bar member. The bar operation detection switch is operated by the held bar member (bar member of the designed size) itself, and a bar member having a size different from the design is not used, and the delay switch operates stably.

  The movement of the eject bar member from the card use position to the card removal position is linear. There is provided a card connector with a take-out function that enables a delay switch to be turned on without requiring a separate action that is not a direct action for taking out the card, and in which the delay switch operates stably.

(Invention of Claim 2)
The card connector with a take-out function of the present invention is
A bar member urging mechanism for urging the bar member toward the card use position is provided.

When the card is used, the bar member is not operated. At this time, it is necessary that the bar operation detection switch and the card removal detection switch do not operate together in order to inform the device using the card that the reading and writing of the card contents can be performed without any problem.
By moving and fixing the bar member to the card use position by the bar member urging mechanism, the switch can be prevented from operating.

(Invention of Claim 3)
The card connector with a take-out function of the present invention is
The bar member includes a convex part for moving the switch,
The bar operation detection switch has a movable contact disposed substantially parallel to the bar member,
The bar motion detection switch operates when the convex portion pushes the movable contact.

For example, as shown in FIG. 5, when the convex portion 2a pushes the movable contact 4a so as to be separated from the fixed contact 4b, the bar operation detection switch is moved from the on state to the off state.
The position of the convex portion 2a in the bar member 2 is determined based on the design, the card operation detection switch does not operate (malfunction) when the card is used, and the card operation detection switch operates. It is possible to obtain a sufficient clearance until the operation.

(Invention of Claim 4)
The card connector with a take-out function of the present invention is
The card connector has a substantially rectangular shape,
A bar space in which the bar member is arranged on the side of the rectangular card insertion portion,
The bar operation detection switch is provided in the bar space.

For example, as shown in FIG. 1, the width of the card connector is wider than the width of the tray 1 (or card), and a bar space in which the bar member 2 is arranged can be provided on the side of the insertion location.
If the bar operation detection switch is provided in the bar space, the delay switch can be provided without increasing the size of the card connector.
The “insertion point” is a place where the tray (or card) is arranged when in use, and the “side part” is a direction perpendicular to the insertion / removal direction of the tray (or card) with respect to the insertion point. This is a displaced portion (left side or right side of the tray 1 in FIG. 1).

(Invention of Claim 5)
The card connector with a take-out function of the present invention is
The card removal position is a position where the bar member is inserted inward of the tray from the card use position.

The relationship between the card removal position and the card use position is that the position where the bar member is inserted inward of the tray is the card removal position (the card is removed by inserting the bar) or the card use position ( Pull out the bar and take out the card).
It is common to insert a bar and take out a card, which matches the user's feeling.

(Invention of Claim 6)
The card connector with a take-out function of the present invention is
The clearance is 1 mm or more.

  The clearance is set to 1 mm or more in order to sufficiently lengthen the time required for the movement of the bar member.

  There is provided a card connector with a take-out function that operates a delay switch without requiring a separate operation that is not a direct operation for taking out the card, and in which the delay switch operates stably.

Depending on the implementation of the invention, the following may also be provided. It is preferable to provide these.
When using the card without any bar member operation, move and fix the bar member to the card use position to inform the device that uses the card that the card contents can be read and written without problems.
Sufficient clearance should be obtained from when the bar operation detection switch is turned on until the card removal detection switch is turned on.
Provide a delay switch without increasing the size of the card connector.
Provide a card connector that inserts a bar and removes the card.

FIG. 1 is a diagram showing a card connector when a card is used. FIG. 2 is a diagram showing a card connector when the card is used. FIG. 3 is a diagram illustrating a tray and a card. FIG. 4 is a diagram illustrating a tray and a card. FIG. 5 is an enlarged view showing the switch mechanism. FIG. 6 is a diagram illustrating the card connector in a state of being housed in the shield cover. FIG. 7 is a diagram showing an initial state of card removal. FIG. 8 is a diagram illustrating a state in which the bar member is in contact with the switch. FIG. 9 is a diagram showing a state where the card is taken out. FIG. 10 is a diagram illustrating the operation of the card removal detection switch. FIG. 11 is a diagram illustrating the operation of the card removal detection switch. FIG. 12 is a diagram illustrating the relationship between the insertion depth of the bar and the switch. FIG. 13 is an enlarged view showing the switch mechanism. FIG. 14 is a diagram showing an initial state of card removal. FIG. 15 is a diagram illustrating a state in which the bar member is in contact with the switch. FIG. 16 is a diagram showing a state where the card is taken out.

  Hereinafter, a first embodiment showing a card connector using a tray, a second embodiment showing a variation of a bar member and a bar operation detection switch, and a third embodiment in which a card is taken out by pulling out a bar will be described.

(Configuration of card connector)
1 and 2 are diagrams showing a card connector when the card is used. FIG. 1 is a view seen from the upper surface, and FIG. 2 is a view seen from the lower surface. Since it is a figure at the time of card | curd use, the bar member 2 which moves in taking out a card | curd is in the card | curd use position.
3 and 4 are diagrams showing a tray and a card. 3 and 4 show the tray 1 in FIG. 1 taken out, FIG. 3 is a view as seen from the top and front (lower side of FIG. 1) in FIG. 1, and FIG. 4 is as seen from the bottom in FIG. It is a figure.

  The card 7 is placed on the tray 1, the data transmission terminal 8 of the card 7 is elastically brought into contact with the data transfer terminal 6 of the card connector, and the card 8 is connected between the device using the card via the data transfer terminal 6. Data is read and written. The tray 1 is provided with a bar through hole 1a.

  The card connector has a substantially rectangular shape, and a bar space 2c surrounded by a dotted line in FIG. 1 exists on the left side of the tray 1 (and the card 7). The bar member 2 passes through the bar space 2c, and bar operation detection switches 4 (4a and 4b) are provided.

  FIG. 5 is an enlarged view showing the switch mechanism. The movable contact 4a is a conductive metal plate having elasticity. The fixed contact 4b is a conductor. The bar operation detection switch is turned on when the movable contact 4a and the fixed contact 4b are in contact with each other, and the bar operation detection switch is turned off when the movable contact 4a and the fixed contact 4b are separated from each other.

  The bar member 2 has a convex portion 2a for moving the switch. When the bar member 2 moves upward in the figure, the convex portion 2a pushes the movable contact 4a to the left in the figure, the movable contact 4a moves away from the fixed contact 4b, and the bar operation detection switch is turned off.

  Returning to FIG. 1, in the bar space, an elastic plate 3 as a bar member urging mechanism is provided on a convex body 12 as a bar member holding mechanism. When the elastic plate 3 moves to the left in the figure, it is biased to the right. When the bar member 2 moves upward in the figure, the elastic plate 3 is moved to the left by the lower curved portion 2b in the figure. By urging the elastic plate 3 to the right, the bar member 2 is urged downward via the curved portion 2b. That is, the bar member 2 moved for card removal is urged after the card removal to return to the card use position.

Due to the presence of the convex body 12, the bar member 2 is not separated from the card connector even if the tray 1 is not provided.
Since the same bar member 2 continues to be used, operation instability caused by using different-sized bar members does not occur.

  A card removal lever 5 is provided at the back of the card insertion location. The card removal lever 5 rotates around a fulcrum 5a. Between the card tray 1 and the card ejection lever 5, there is provided a card ejection detection switch 10 that is hidden and cannot be seen in the figure.

  The card connector having the above configuration is housed in a shield cover formed of a conductive metal thin plate. FIG. 6 is a diagram illustrating the card connector in a state of being housed in the shield cover.

(Operation when removing card)
With the above card connector configuration, data is read and written between the card-using device and the card 7 when the card is used. Further, when inserting the card, the tray 1 and the card 7 may be inserted into the card connector from the lower side of FIG. Hereinafter, the operation when removing the card will be described.

  FIG. 7 is a diagram showing an initial state of card removal. An eject bar 9 passes through the bar through hole 1 a and is in contact with the bar member 2. At this time, the movable contact 4a and the fixed contact 4b are in contact with each other, and the bar operation detection switch is in the ON state.

  FIG. 8 is a diagram illustrating a state in which the bar member is in contact with the switch. The eject bar 9 is pushed in from the state of FIG. The convex part 2a pushes the movable contact 4a, the movable contact 4a moves away from the fixed contact 4b, and the bar motion detection switch is turned off.

FIG. 9 is a diagram showing a state where the card is taken out. The eject bar 9 is pushed further from the state of FIG. The bar member 2 pushes the lever 5, and the lever 5 rotates around the fulcrum 5a to push out the tray 1.
In this state, the movable contact 10a of the card removal detection switch 10 below the tray 1 is visible.

10 and 11 are diagrams illustrating the operation of the card removal detection switch. FIG. 10 shows the tray 1 and the lever 5 removed from FIG. FIG. 11 is obtained by removing the tray 1 and the lever 5 from FIG.
The card removal detection switch 10 includes a movable contact 10a and a fixed contact 10b. The movable contact 10a is a conductive metal plate having elasticity, and is biased downward in the figure. The fixed contact 10b is a conductor. The card removal detection switch is turned on when the movable contact 10a and the fixed contact 10b are in contact with each other, and the card removal detection switch is turned off when the movable contact 10a and the fixed contact 10b are separated from each other.

In the initial state of card removal shown in FIG. 10 (when the card is used), the movable contact 10 a is pushed upward by the tray 1. The movable contact 10a and the fixed contact 10b are separated from each other, and the card removal detection switch is off.
In the state where the card shown in FIG. 11 is taken out, the movable contact 10a moves downward and is in contact with the fixed contact 10b, and the card removal detection switch is in the ON state.

  FIG. 12 is a diagram illustrating the relationship between the insertion depth of the bar and the switch. The connection between the data transfer terminal 8 and the data transfer terminal 6 is disconnected when the bar is inserted 1.9 mm. If a signal is sent before this (one of the switches operates), the reading / writing of the card contents by the device using the card will be stopped, and the information stored in the card will be lost. Should be prevented.

  In the method using the card removal detection switch, the signal from the card removal detection switch and the disconnection of the data transfer are close in time (in this embodiment, only the insertion depth of the bar is 0.2 mm), Failures such as loss of information stored on the card could not be completely prevented. For this reason, the need for a delay switch has been proposed.

In this embodiment, the signal from the bar operation detection switch is transmitted when a bar is inserted 0.5 mm. Compared with the card removal detection switch, the time difference with respect to disconnection of data transfer is large (the time for inserting the bar is different by 1.2 mm), and the failure such as the loss of information stored in the card is completely prevented. be able to.
The bar operation detection switch functions as a delay switch due to the clearance of 1.2 mm.

(Other)
In this embodiment, a card is placed on a tray. However, the invention shown in the present embodiment is realized by a member provided in the bar space, and does not have a special mechanism in a portion for taking out the tray (a contact portion between the lever 5 and the tray 1). Therefore, the present invention can also be used to directly eject a card without using a tray, and is included in the technical scope of the present invention.

  This embodiment shows variations of the bar member and the bar operation detection switch. Since other parts are the same as those of the first embodiment, the description thereof is omitted.

FIG. 13 is an enlarged view showing the switch mechanism. In the present embodiment, the portion of FIG. 5 in the first embodiment is replaced with that of FIG.
The bar member 2 is conductive, and the bar operation detection switch is turned on by the presence of the bar member between the movable contact 4a and the fixed contact 4b. A non-conductive portion 2 d is provided on a part of the bar member 2. Depending on the insertion depth of the bar, the non-conductive portion 2d enters between the movable contact 4a and the fixed contact 4b, and the bar operation detection switch is turned off. As a result, the same relationship between the insertion depth of the bar and the ON / OFF state of the bar motion detection switch as in the first embodiment can be realized.

  In this embodiment, since the bar member 2 is linear in the illustrated portion, the same bar member holding mechanism and bar member urging mechanism as in the first embodiment cannot be provided. It is possible to appropriately provide a non-illustrated portion of the member 2 as a non-linear shape.

  As shown in the present embodiment, various variations can be considered for the bar member and the bar operation detection switch. Any of them is included in the technical scope of the present invention.

  In this embodiment, the bar is pulled out to take out the card. Description of the same parts as those in the first embodiment will be omitted.

FIG. 14 is a diagram showing an initial state of card removal. In contrast to FIG. 7, the parts in the bar space are arranged upside down. That is, in this embodiment, the relationship between the operation of the bar member 2 and the bar operation detection switch is upside down with respect to the first embodiment, and the operation of the bar operation detection switch can be performed by pulling out the eject bar 9 instead of pushing it. Done. Further, the shape of the lever 5 and the position of the fulcrum 5a are changed, and the bar member 2 moves downward, pulls the lever 5 downward via the connecting member 11, and takes out the tray 1. The connecting member 11 may be a flexible thread.
With the above structure, a card connector for pulling out the bar and taking out the card is realized.

  When the eject bar 9 is pulled out and the card is taken out, it is difficult to separate the bar member 2 and the eject bar 9 from each other. This is because the bar member cannot be moved downward when the eject bar is pulled out. Therefore, the bar member 2 and the eject bar 9 are integrated, and a knob 9a is provided. The card can be taken out by pulling the knob 9a.

  Further, it is not easy to provide a clearance by providing a gap between the bar member 2 and the lever 5. Therefore, a clearance is realized by the connecting member 11. The distance until the connecting member 11 extends is defined as a clearance, and the lever 5 is moved by the downward movement of the bar member 2 thereafter.

  As shown in the present embodiment, the card can be taken out by pulling out the bar by using the technique of the present invention. A card connector for pulling out the bar and taking out the card is also included in the technical scope of the present invention.

  A card connector with a take-out function that allows the delay switch to operate without requiring a separate action that is not a direct action for card removal, in which the delay switch operates stably. Many card connectors It can be used by manufacturers.

DESCRIPTION OF SYMBOLS 1 Tray 1a Bar through-hole 2 Bar member 2a Protruding part 2b Curved part 2c Bar space 2d Non-conductive part 3 Elastic plate 4 Bar operation detection switch 4a Movable contact 4b Fixed contact 5 Lever 5a Support point 6 Data transfer terminal 7 Card 8 Data transmission Terminal 9 Eject bar 9a Knob 10 Card removal detection switch 10a Movable contact 10b Fixed contact 11 Connecting member 12 Convex body

Claims (6)

A card connector with an ejecting function, which comprises a bar member for ejecting, and can remove the card by linearly moving the bar member from the card use position to the card removal position,
A bar operation detection switch and a card removal detection switch are provided.
There are a bar operation detection position for operating the bar member operation detection switch and a card detection position for operating the card extraction detection switch while the bar member is moved from the card use position to the card removal position. ,
When the bar member is closer to the card use position than the bar action detection position, the bar action detection switch does not operate,
When the bar member is closer to the card use position than the card detection position, the card removal detection switch does not operate,
The bar operation detection position is closer to the card use position than the card detection position,
A clearance is provided between the bar motion detection position and the card detection position for causing the bar member to move for a certain period of time,
A card connector with an extraction function, comprising a bar member holding mechanism for preventing separation of the bar member from the card connector.   The card connector with a take-out function according to claim 1, further comprising a bar member urging mechanism that urges the bar member toward the card use position. The bar member includes a protrusion for operating the switch,
The bar operation detection switch has a movable contact disposed substantially parallel to the bar member,
3. The card connector with an extraction function according to claim 1 or 2, wherein the bar operation detection switch is operated by the convex portion pushing the movable contact. The card connector has a substantially rectangular shape,
A bar space in which the bar member is arranged on the side of the rectangular card insertion portion,
The card connector with an extraction function according to claim 1, wherein the bar operation detection switch is provided in the space for the bar.   5. The card connector with an extraction function according to claim 4, wherein the card removal position is a position where the bar member is inserted inward of the tray from the card use position. The card connector with an extraction function according to claim 1, wherein the clearance is 1 mm or more.

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