JPH07335317A - Electric connector for ic card - Google Patents

Abstract

PURPOSE:To prevent false coming-off of an IC card with simple structure by operating an ejector in a false coming-off protection position and an operating position. CONSTITUTION:A plate 2 existing in an advanced position by being pressed by an IC card 1 retreats an eject bar 5 through an eject lever 4. When the card 1 is drawn out, an operator moves an ejector 6 with a finger to an operation position to retreat from a false coming-off protection position facing a rear edge surface of the card 1, and the ejector 6 is pushed forward. The bar 5 is pushed forward by the ejector 6 pushed forward. The bar 5 rotates a lever 4, and a contact part 2B of a plate 2 which retreats by the rotation of the lever 4 retreats the card 1 to an ejectable position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an IC card electrical connector.

[0002]

2. Description of the Related Art As this type of connector, the one disclosed in Japanese Utility Model Laid-Open No. 4-133369 is known. As shown in FIG. 9 of the accompanying drawings, this known connector has a slot 51 for inserting an IC card 52 formed in a housing 51, and the IC card 52 is inserted from the front end to the vicinity of the rear end (see FIG. 9). A plate 54 that receives the front portion of the IC card 52 in the slot 53 and is movable back and forth in the slot 53
Is stored. A part of the front edge of the plate 54 is bent to form a contact portion 55 that contacts the front end surface of the IC card 52. A long hole 56 is formed in the plate 54 in the front-rear direction, and a columnar protrusion 57 of the housing 51 penetrates therethrough, and a plate-like eject lever 58 having the protrusion 57 as a fulcrum is connected thereto. . The eject lever 58 has a long hole 59 formed on one end side, and a projection 60 of the plate 54 is locked therein. The other end of the eject lever 58 projects to the side of the slot 53 and is connected to the eject bar 61, which is movable back and forth on the side of the slot 53, by its groove 61A. The eject bar 61 is provided near the opening of the slot 53,
It is connected to a push button ejector 62 that can be operated from the outside. As shown in FIG. 9, the ejector 62 is located near the rear end of the IC card 52 in the front-rear direction when the IC card 52 is mounted.

The ejector 62 of the connector is in the position shown by the solid line in FIG. 9 when the IC card is in use, and the ejector 62 is taken out when the IC card is taken out.
Is pushed forward to the position of the chain double-dashed line (see arrow A), the plate 54 is moved backward by the lever action of the eject lever 58, and the contact portion 5 of the plate 54 is moved.
At 5, the IC card 52 can be pushed back and taken out.

[0004]

However, in the connector described above, the ejector 62 is at the side position of the IC card 52 when the IC card 52 is completely inserted, and the IC card 52 is accidentally pulled out. Sometimes.

Further, when the IC card 52 is housed in the slot of the connector, that is, when the device employing the connector is used, the ejector 62 is located at substantially the same position as the rear end of the IC card 52. Since it is not protruding, it does not cause any obstacle during the use of the device. But I
When removing the C card 52, the ejector 62
Since you have to push in with your finger, there is the problem that it is difficult to operate. Further, depending on the operator, the ejector 62 may be pushed and the IC card in proximity may be pushed strongly. To solve this problem,
The ejector 62 can be formed long so as to come to a position projecting rearward (outwardly) sufficiently, but in that case, the ejector is accidentally pushed during use of the device and the IC card pops out. There is an inconvenience of coming.

A first object of the present invention is to provide an electric connector for an IC card which solves such a problem and which can prevent the IC card from being accidentally removed by a simple structure. A second object of the present invention is to provide an electric connector for an IC card, which can be easily protruded when the IC card is taken out and the ejector can be operated easily.

[0007]

According to the present invention, the first object is to form a slot for inserting an IC card in a housing, and receive the front portion of the IC card in the slot to insert the IC card. A plate having an abutting portion that abuts on the front end face in the direction is provided so as to be movable back and forth within the slot, and the plate has a pallet-like shape that is rotatable on a plane parallel to the plane of the IC card. An eject lever is connected, one end side of the eject lever engages with the plate as an action point, and the other end side protrudes into an operation hole formed on the side of the slot, and a push button ejector that can be operated from the outside is used. The operation aperture has a disengagement mechanism that presses the other end of the eject lever as a force point of the eject lever by an eject bar that can move back and forth under a pressing force.
In the electrical connector for a C card, the ejector is opposed to the rear end surface of the IC card in a completely inserted state and is an erroneous removal prevention position for preventing the IC card from popping out, and is retracted from the erroneous removal prevention position to remove the IC card. The present invention is achieved by the first invention in which the ejector bar is movably connected to an operating position that enables the ejection.

A second object of the present invention is that, in the first invention, the length of the eject bar in the moving direction at the time of operating the eject bar increases when the ejector moves from the accidental removal preventing position to the operating position. This is achieved by being able to change direction.

[0009]

According to the first invention of the present application having such a configuration, the IC
Insertion and removal of the card connector is performed in the following procedure.

First, after confirming that the ejector is in the operation position, the IC card is inserted into the slot. IC
When the card is inserted to a predetermined position, the front end of the IC card presses the abutting portion to move the plate forward, which causes the ejector lever in the shape of a lever to rotate and pushes the eject bar backward.

The ejector connected to the eject bar is in a position projecting rearward, and then this ejector is moved to the accidental removal preventing position. At the accidental removal prevention position, the ejector faces the rear end face of the inserted IC card, and the accidental removal of the IC card is prevented.

Next, when it is desired to take out the IC card, the ejector is moved to the operation position again. The ejector is retracted and is no longer in a position facing the rear end face of the IC card. In this state, the ejector is pushed in to advance the eject bar. The ejector lever in the form of a lever rotates to retract the plate, and the IC card pushed by the contact portion of the plate is pulled out from the connector.

Next, in the second invention of the present application, an IC
In the above process for taking out the card, the ejector changes its direction when it is moved from the accidental removal preventing position to the operating position, and is elongated in the moving direction of the eject bar. That is, the ejector is in a posture that it takes a position that largely protrudes rearward, and it becomes easy to perform the pushing operation of the ejector.

[0014]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

<First Embodiment> FIG. 1 shows an IC card inserted in a slot of a housing and a mechanism for receiving and removing the IC card, and the housing is omitted.

In the first embodiment shown in FIG. 1, reference numeral 1 is an IC card, which is inserted into the slot of the housing and whose front end is received by the plate 2. The plate 2 is arranged so as to be movable back and forth within the slot, and has L-shaped guide portions 2A on both sides to guide the reception of the IC card 1. The plate 2 is partially bent so that the IC card 1
Has a contact portion 2B that contacts the front end surface of the. A post 3 projecting from the housing side is inserted into a U-shaped groove 2C formed in the plate 2 so as to be opened forward.

The pillar 3 has a plate-shaped eject lever 4
Are rotatably connected. The eject lever 4 operates like a lever, rotates around the support column 3 as a fulcrum, and has a semi-circular action portion 4A at one end as an action point. Is in contact with the pressed portion 2D. A roller 4B is provided at the other end of the eject lever 4 and receives a force from the eject bar 5 to function as a force point in the lever.

The eject bar 5 has a long rod shape in the front and rear direction, contacts the roller 4B of the eject lever 4 at the front end face, and the rear end 5A is almost at the position of the rear end face 1A of the IC card 1 in the insertion completed state. Has reached An ejector 6 is connected to the rear end 5A of the eject bar 5. As shown in FIG. 2, the front surface of the ejector 6 is provided with a ridge portion 6A having a substantially T-shaped cross section.
A guide groove 5B for guiding the protrusion 6A is formed at the rear end 5A, and the ejector 6 is movable along the rear end surface 1A of the IC card 1. The ejector 6
As shown in FIGS. 1 and 2, the protruding portion 6A faces the rear end surface 1A of the IC card 1 to prevent the IC card 1 from popping out, and as shown in FIG. The ridge 6A can be moved by an operator's operation between the ridge 6A and the operation position housed in the guide groove 5B so that the IC card 1 can be removed from the accidental removal prevention position. . Preferably, locking means, for example, a protrusion and a locking claw, are provided between the ejector 6 and the eject bar 5 to fix the position at each of the accidental removal prevention position and the operation position.

In this embodiment, the IC card 1 can be inserted and removed as follows.

In FIG. 1, the IC card 1 is inserted in a slot (not shown) of the connector housing, and the device using the connector is in use. In other words, the plate 2 which is pushed by the IC card 1 and is in the forward position makes the eject bar 5 retreat via the eject lever 4. At this time, the ejector 6 is in the erroneous removal prevention position shown in FIGS. 1 and 2, and even if the inserted IC card 1 tries to pop out rearward due to an erroneous operation or the like, its rear end 1A contacts the ridge 6A of the ejector 6. Therefore, the situation of accidental escape does not occur.

Next, when the IC card is removed, as shown in FIG. 3, the operator first moves the ejector 6 with his / her finger to the operation position so as to face the rear end surface 1A of the IC card 1. Evacuate from the accidental removal prevention position.

Then, the ejector 6 is pushed forward. Then, the eject bar 5 is pushed forward by the ejector 6 that has been pushed in. Thus, the eject bar 5 which has moved forward rotates the eject lever 4 in the form of a lever, and the contact portion 2B of the plate 2 which is retracted by the rotation of the eject lever 4 retracts the IC card 1 to a removable position. Bring to.

<Second Embodiment> In the first embodiment, the ejector is designed to move linearly between the erroneous removal preventing position and the operating position, but in the present embodiment, it is possible to rotate between the two positions. It is characterized by being moved by.

As shown in FIG. 4, the ejector 16 whose front surface is in contact with the rear end 15A of the eject bar 15 is rotatable around the shaft 17 by a shaft 17 extending in the longitudinal movement direction of the eject bar 15. It is connected to 15. The position where the ejector 16 is supported by the shaft 17 is displaced from the center position of the ejector,
Every time the ejector is reciprocally rotated by 180 ° about the shaft 17, the accidental removal preventing position shown in FIG. 4 and the operating position shown in FIG. 5 are alternately set. A lock protrusion 18 is provided at the rear end of the eject bar 15, and the ejector 16 is provided.
Has engaging grooves 19A and 19B formed on the front and back sides of the ejector 16 for engaging with the protrusion 18 at the accidental removal preventing position and the operating position, respectively, and maintains both positions. .

<Third Embodiment> In the first and second embodiments, the ejector is located between the erroneous removal preventing position and the operating position by I.
The ejector moved in parallel with the rear end surface of the C card and the length of the ejector in the front-rear direction did not change. However, in this embodiment, the ejector largely protrudes rearward when the IC card is ejected, and the eject bar is easily pushed. It is characterized in that

In the present embodiment shown in FIG. 6, the same parts as those of the above-described first embodiment shown in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIGS. 6 and 7, the ejector 26 is connected to the rear end of the eject bar 25 by a pin 27 so as to be reciprocally rotatable by 90 ° in a plane parallel to the plane of the IC card 1. ing. The ejector 26 has a rectangular shape and has different lengths in the front-rear direction when the direction is changed by the rotation. That is, in FIG. 6 and FIG. 7, the ejector 26 is oriented at right angles to the eject bar 25, and one side surface of the ejector 26 is located at the erroneous removal prevention position facing the rear end surface 1A of the IC card 1 in the insertion completed state. is there. Next, as shown in FIG.
° If you rotate it so that it is parallel to the eject bar 25,
The ejector 26 is no longer the rear end surface 1A of the IC card 1.
The operation position does not oppose to and does not prevent the withdrawal of the IC card 1.

Also in this embodiment, as a preferred form, the eject bar 25 and the ejector 26 are provided with locking means for maintaining the positions of the above-mentioned erroneous removal preventing position and the operating position. As shown in FIGS. 7 and 8, two lock windows 28A and 28B are formed at the rear end of the eject bar 25, and the ejector 26 is provided with locking projections 29A and 29B. The locking projection 29A shown in FIG. 8 engages with the lock window 28A in the accidental removal prevention position of FIG. 7, and the locking projection shown in FIG. 7 in the operation position of FIG. 29B locks with the lock window 28B.

Thus, in the present embodiment, the ejector 26 prevents the IC card 1 from being accidentally ejected at the erroneous removal prevention position of FIG. 7 as in the case of the previous embodiment. At the operating position, the ejector 26 projects largely rearward, so that when the eject bar 25 is pushed forward to eject the IC card 1, the operation of pushing the ejector 26 becomes extremely easy.

[0030]

As described above, according to the present invention, since the ejector can selectively take an erroneous removal preventing position and an operating position, the IC can be inadvertently used while the device using the IC card is being used.
Preventing accidental removal of the card. Further, when the ejector is turned to the operation position so as to be largely projected rearward, there is an effect that the pushing operation of the ejector when the IC card is removed becomes extremely easy.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of an IC card electric connector according to a first embodiment of the present invention.

FIG. 2 is an enlarged perspective view of the eject bar and the ejector of FIG. 1, showing a state in an accidental removal prevention position.

FIG. 3 is an enlarged perspective view of the eject bar and the ejector of FIG. 1, showing a state in an operating position.

FIG. 4 is a perspective view of an eject bar and an ejector of a second embodiment, showing a state in an erroneous removal prevention position.

FIG. 5 is a perspective view of an eject bar and an ejector of a second embodiment, showing a state in an operation position.

FIG. 6 is a perspective view showing a schematic configuration of an IC card electrical connector of a third embodiment.

FIG. 7 is an enlarged perspective view of the eject bar and the ejector of FIG. 6, showing a state in an accidental removal prevention position.

FIG. 8 is an enlarged perspective view of the eject bar and the ejector of FIG. 6, showing a state in an operating position.

FIG. 9 is a cross-sectional view of a conventional connector.

[Explanation of symbols]

 1 IC card 2 Plate 2B Abutting part 3 Support point (post) 4 Eject lever 5 Eject bar 6 Ejector 18 Protrusion (locking means) 19 Locking groove (locking means) 28A, 28B Locking window (locking means) 29A, 29B Locking Protrusion (locking means)

Claims (3)

[Claims] 1. A slot for inserting an IC card is formed in a housing, and a plate having an abutting portion for receiving a front portion of the IC card and abutting a front end face of the IC card in the inserting direction is provided in the slot. A movable ejector lever is connected to the plate so as to be rotatable on a plane parallel to the surface of the IC card at a fulcrum, and one end side of the eject lever is attached to the plate as an action point. The other end of the eject lever is pushed by the eject bar, which is engaged with the other end and protrudes into the operation hole formed on the side of the slot and receives a pressing force from the push button ejector that can be operated from the outside. I has a detaching mechanism for pressing the other end of the
In the electrical connector for a C card, the ejector is opposed to the rear end surface of the IC card in a completely inserted state and is an erroneous removal prevention position for preventing the IC card from popping out, and is retracted from the erroneous removal prevention position to remove the IC card. An electric connector for an IC card, characterized in that the electric connector is connected to an eject bar so as to be movable between an operation position that enables ejection. 2. The ejector is capable of changing its direction so that the length in the moving direction of the eject bar during operation is increased when the ejector moves from the accidental removal preventing position to the operating position. Electrical connector for IC card described in 3. The ejector and the eject bar have lock means for engaging with each other and maintaining respective positions of the accidental removal preventing position and the operating position. Electric connector for IC card.