JPH06325820A - Connector for memory card - Google Patents

Abstract

PURPOSE:To hold a memory card after ejection in a connector without any reduction in connection operativity to the connector and to prevent reduction in a characteristic or damage so as to improve productivity by providing a tongue piece having a spring characteristic in an ejection operating rod and a projection to be engaged with a tongue piece in the predetermined position of an insulating cage body. CONSTITUTION:An insulating cage body 31 is provided with a window-shaped opening part 31a having the length of L1, and a triangular projection 31b is arranged in the predetermined position in the inside of the opening 31a area. A tongue piece 32a, which is divided toward the inside in the longitudinal direction with setting a pressing operating side as a branch point, is provided on the inside face of an ejection operating rod 32. When the ejection operating rod 32 is installed in the insulating cage body 31, the triangular projection 31b of the insulating cage body 31 is positioned in the inside around the point end part of the tongue piece 32a under a condition that the operating rod 32 is not pressed. Under a condition that the operating rod 32 is pressed, the projection 31b penetrates into the inside of the point end area of the tongue piece 32a to push up the tongue piece and to displace it to a memory card 1 side, so that the card is pressed. In this way, the card is prevented from falling out or dropping out after ejection.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a connector for a memory card having an ejecting mechanism of a connector for connecting a memory card to a circuit board or a device, and more particularly to a connecting operation of the memory card to the connector. By holding the ejected memory card in the connector without increasing the force beyond the insertion force of the connector body and the ejection operation force of the memory card from the connector above the removal force of the connector body The present invention relates to a memory card connector that improves productivity by eliminating the deterioration and damage of the characteristics of a memory card caused by a drop or the like.

A memory card (hereinafter simply referred to as a card) is becoming widespread as one means for exchanging information between a terminal device and an apparatus main body with the progress of electronic technology. A memory card connector (hereinafter simply referred to as a connector) is used for attachment / detachment.

In the connector in this case, the ejected card is easily dropped or dropped from the connector to deteriorate the characteristics of the card and damage the card. A major issue is how to hold the ejected card in the connector without increasing the card insertion / removal (hereinafter referred to as insertion / removal) force.

[0004]

2. Description of the Related Art FIG. 3 is a conceptual view for explaining a conventional connector structure together with an eject mechanism, and FIG. 4 is a view for explaining a state when a card is inserted or removed. .

In the drawing, the case of a connector mounted on a printed circuit board will be described as an example. In FIG. 3, the card 1 having a plurality of information input / output jack terminals 11 arranged on the end face 1a in accordance with the standard established by the Japan Electronic Industry Development Association (JEIDA) is, for example, each jack terminal. The circuit board 12 connected to 11 has a plurality of I (not shown) on both sides thereof.
A semiconductor device such as C is mounted, and both outer surfaces are covered with a shield metal plate 13, and the two metal plates 13 are electrically connected by a lead wire or the like (not shown).

The connector 2 to which the card 1 is detachably attached has a connector main body 21a having plug terminals 211 planted at positions corresponding to the respective jack terminals 11 of the card 1 and the plug terminal projecting directions at both ends thereof. A substantially U-shaped insulating casing 21 formed by the extending leg portions 21b in plan view and a groove 21c formed along the longitudinal direction on the outer surface of each leg portion of the insulating casing 21 is guided. And an eject plate mounted on the connector body so as to be rotatable about a protrusion 21d provided at a predetermined position on the side surface (top surface in the figure) of the connector body of the insulating housing 21. A plate moving lever 23 and an eject operation rod 24 mounted on the housing 21 so as to be able to move along the leg outside one side of the insulating housing 21. There is.

The connector 2 is the plug terminal described above.
The other end of 211 is mounted on the circuit board 26. And
The card 1 described above is inserted in the width direction thereof along the guide grooves 21e formed corresponding to the inner facing surfaces of the legs of the insulating casing 21 to a predetermined position, so that the insulating state is maintained. The housing 21 and then the connector body 21a are mounted and connected.

Further, the eject plate 22 and the eject plate moving lever 23 are relatively rotated by an engaging portion 231 provided on the free end side of the rotation center of the eject plate moving lever 23, that is, the position where the projection 21d is arranged. It is movably locked.

A cut-and-raised piece 22a protruding toward the back surface (lower surface in the figure) is formed at a predetermined position of the eject plate 22, that is, at a position corresponding to both ends in the width direction of the card 1 described above. The other end of the moving lever 23 is rotatably locked to one end of the eject operation rod 24 described above.

Then, the eject operation rod 24 is moved to the arrow position.
When pressed in the a ₁ direction, the eject plate moving lever 23 locked to one end of the rod 24 rotates in the direction of the arrow a ₂ around the projection 21d, but the eject lever moving lever 23 is ejected to the free end side of the moving lever 23. Since the plate 22 is locked, the eject plate 22 moves in the arrow a ₃ direction.

Therefore, the position where the cut-and-raised piece 22a provided on the eject plate 22 is formed is determined by the eject plate moving lever 23.
At the position shown in the drawing, that is, in the state shown in the drawing in which the ejecting rod 24 is not pressed, by substantially matching the plug terminal projecting surface 21f of the connector body 21a, the a of the eject plate moving lever 23 _By pushing in _one direction, the card 1 connected to the connector body 21a can be ejected.

In order to facilitate understanding, the ejecting state will be described in plan view. In FIG. 4, (4-1) shows a state where the card 1 is connected, and (4-2) shows a state at the time of ejecting. Is shown.

In (4-1) of the figure, the card 1 is attached to the connector 2. In this case, the end surface 1a of the card 1 is connected to the connector body with the cut-and-raised piece 22a of the eject plate 22 interposed therebetween. It is connected to 21a.

Therefore, the eject operation rod 24 is shown in FIG.
As described above, by pressing in the arrow a ₁ direction, the eject plate moving lever 23 rotates in the a ₂ direction, and the eject plate 22 further moves.
Because the allowed to move in the direction of the separable a a ₃ direction, that the card 1 from the connector body 21a, disconnect the card 1 that was in a connected state with the connector 2 and thus the connector body 21a as shown in (4-2) from the body 21a Can be ejected.

Furthermore, when in the state of (4-2) to insert another card after removing the card 1 the end face of the card the eject plate 22 presses the cut-and-raised pieces 22a to a ₃ 'direction As it is moved, the eject plate moving lever 23 rotates in the a ₂ ′ direction, and as a result, the eject operation rod 24 moves in the arrow direction.
It moves in the a ₁ ′ direction and returns to the initial state shown in (4-1).

In such a connector 2, the rotation center position of the eject plate moving lever 23 with respect to the insulating casing 21, that is, the protrusion.
By appropriately setting the arrangement position of 21d and the locking position with respect to the eject plate 22, that is, the setting position of the engaging portion 231, there is an advantage that it can be applied to any card without deteriorating the operability. .

[0017]

However, since the card after being ejected by the ejecting operation rod is only positioned by being guided by the guide groove between the leg portions of the insulating housing, for example, the connector may be inclined. When vibration or the like is applied from the outside, the card is often dropped or dropped from between the legs, and as a result, there is a problem that the characteristics of the card may be deteriorated or damaged.

Therefore, for example, a spring or the like for urging the pressing force from the outside is provided in the guide groove portion of the above-mentioned leg to press the side of the card to temporarily hold the ejected card, thereby dropping or dropping it. However, in this case, since the pressing force is applied even when the card is inserted or removed, the operating force at the time of insertion and removal becomes larger than the insertion and removal force of the connector body, resulting in However, there is a problem that the operability is likely to be deteriorated.

[0019]

SUMMARY OF THE INVENTION The above-mentioned problem is a memory card connector having an eject mechanism for detachably mounting a memory card on a circuit board or a device, wherein the memory card is guided at both widthwise sides thereof. And an insulating casing formed on both sides of the connector main body so that the leg portion having a guide groove to be inserted is formed in a U shape in plan view, and the leg portion is provided outside the one side leg portion of the insulating casing. Ejecting rod mounted so as to be movable in the direction, and the connector main body of the insulating casing by the movement of the ejecting operating rod when engaging with the eject operating rod and pressing it in the memory card insertion direction. At least an eject plate for ejecting the memory card connected to the connector body from the connector main body, and an eject mechanism including an eject plate moving lever. The eject operation rod engages with a protrusion formed at a predetermined position of the insulating casing when the eject operating rod is moved in the pressing direction, and the inter-leg portion of the insulating casing is formed. It is achieved by a memory card connector that is configured with a tongue that can press the memory card located at the side of the tongue.

[0020]

[Function] When the connector is configured so that the pressing force to the card side is applied only to the ejected card,
It is possible to hold the ejected card without deteriorating the card insertion / removal operability and to prevent the card from dropping or dropping.

Therefore, in the present invention, a tongue piece having a spring property is formed on the eject operation rod, and the tongue piece can be pressed against the side of the card or released from the pressing depending on the position of the operation rod with respect to the insulating casing. The connector is configured like this.

This means that the ejected card can be held by setting the pressing position of the tongue on the card side so that it can be applied only to the ejected card.

Therefore, it is possible to prevent the characteristic deterioration and damage due to the dropping and dropping of the card after ejecting without lowering the operability at the time of inserting and removing the card, and it is possible to expect an improvement in productivity.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a principle view for explaining a configuration example of a connector according to the present invention, (1-1) shows a state when a card is inserted, and (1-2) ejects the card. It is a figure showing the state at the time.

FIG. 2 is a diagram for explaining the operating state of the main part of the connector of FIG. 1 in time series. Note that, in each of the drawings, the case of a connector for the same card as in FIG. 3 is taken as an example, so that the same target members and parts as those in FIGS. 3 and 4 are denoted by the same reference symbols and duplicate description will be omitted. Is omitted.

The connector 3 according to the present invention in (1-1) of FIG. 1 shown in a plan view similar to FIG.
An insulating casing 31 having substantially the same configuration as that of the first embodiment but different from the insulating casing 21 only in one side leg, the eject plate 22, the eject plate moving lever 23 described in FIG. 3, and the eject operation rod of FIG.
Similar to 24, at least an ejecting operation rod 32 different from the operation rod 24 so as to be able to move along the leg on the outside of one side leg and a part thereof corresponds to the insulating casing 31. It is configured.

The card 1 described above is installed in the insulating casing 31.
It is similar to the case of FIG. 3 in that the connector main body 21a and the connector 3 can be connected by being inserted to a predetermined position along the guide grooves 21e formed on the inner facing surfaces of the respective leg portions of the eject plate. It is the same as in FIG. 3 that the ejector plate moving lever 23 and the eject plate moving lever 23 are rotatably locked by the engaging portion 231.

In particular, in this case, the insulating casing 31 has a window-like opening having a length L ₁ so that the bottom wall of the guide groove 21e of the leg in which the eject operation rod 32 is mounted is connected to the eject operation rod through hole. A triangular protrusion 31b is formed on the portion 31a, and has a triangular shape in plan view at a predetermined position in the window-shaped opening 31a and has at least an inclined surface 31b 'on the card insertion side and protrudes in the thickness direction of the paper. Has been formed.

Therefore, when the insulating casing 31 is viewed from the window-shaped opening side, that is, in the direction of the arrow b, the triangular protrusion 31b can be seen in the opening 31a together with its slope 31b '.
On the other hand, the eject operation rod 32 is formed by including at least a tongue piece 32a that is branched inward in the longitudinal direction with the pressing operation side as a branch point on the inner surface of the eject operation rod 24 described in FIG.

When the eject operating rod 32 is mounted on the insulating casing 31 as in FIG. 3, the eject operating rod 32 is not pressed and the insulating casing is shown in the state of (1-1).
Although the triangular projection 31b of 31 is located inside the tip end portion of the tongue piece 32a, it pushes the eject operation rod 32 (1
In the state of -2), the triangular protrusion 31b enters the inside of the tip end region of the tongue piece 32a and displaces the tongue piece 32a in the upward direction, that is, toward the card side.

In this case, the displacement amount of the tongue piece 32a is set so that the tip surface thereof slightly exceeds the bottom surface 21e 'of the guide groove 21e. This means that when the card 1 is inserted as shown by the one-dot chain line c, the tongue 32a is not displaced in the state shown in the drawing (1-1) in which the eject operation rod 32 is not pressed, so that the card 1 is not affected by the tongue 32a. Although the card 1 can be inserted without receiving it, when the ejecting rod 32 is pressed to eject the mounted card 1 as indicated by the one-dot chain line c ', the above-mentioned displacement of the tongue 32a causes the card 1 to be pressed by its side. Means to be done.

Therefore, even when the card 1 is ejected from the connector main body 21a by pressing the eject operation rod 32, the card 1 is held by being pressed by the tongue piece 32a from the side.

FIG. 2 is a time-sequential explanation of the operation state in which only the main part relating to the present invention is extracted. In FIG. 2, (2-1) is the state before the card is inserted, and (2-2) is the time when the card is inserted. (2-3) shows the state when the card is ejected, and (2-4) shows the state when the card is removed.

In (2-1), (a) shows a case where the card 1 is inserted into the connector 3 in a state where the eject operation rod 32 is not pressed, and (b) is a state where the eject operation rod 32 is pressed. The case where the card 1 is inserted into the connector 3 at a certain time is shown.

At (a) of (2-1), the card 1 is first inserted as shown by the arrow d _{1. In} this case, the eject operation rod 32 is used.
Since the above-mentioned tongue piece 32a is not displaced as described with reference to FIG. 1, it is not affected by the displacement. Therefore, the card 1 can be inserted into the connector 3 with an operation force equal to the insertion force of the connector body 21a. The state shown in (2-2) can be easily set.

The item (b) of (2-1) will be described later. Then, as shown by the arrow A ₁ in (2-3), the eject operation rod 32 is pressed to move the card 1 into the connector body as shown by the arrow d _2.
It is removed from 21a, but the card 1 at this time is (1
As described in -2), the side edge of the tongue piece 32a is pressed by the tip end region of the tongue piece 32a.

Then, when the card 1 is pulled out from the connector 3 as indicated by an arrow d ₃ , the tongue 32a, which is in contact with the card 1, and thus the eject operation rod 32 are moved together with the card 1 by a frictional force with the card 1. since moves in the arrow a ₂ direction, realized to facilitate the triangular projections 31b and the engagement displacement of the tongue piece 32a is consequently it is possible to eliminate the influence on the card 1 lost card 1 out of sampling can do.

The state in this case is (b) in (2-1) above.
Therefore, even when the card 1 is newly inserted, the influence of the tongue piece 32a can be eliminated. In the connector 3 having such a configuration, since only the card 1 ejected from the connector body 21a is pressed by the tongue piece 32a described above, the connector 3 of the card 1 after ejecting
It is possible to prevent deterioration of the characteristics and damage caused by falling off and dropping, and to improve productivity.

[0039]

As described above, according to the present invention, the ejected memory card can be retained in the connector without lowering the operability of inserting / removing the memory card into / from the connector, and the deterioration of the characteristics and damage of the memory card can be eliminated, and the productivity can be improved. It is possible to provide a connector for a memory card which is improved.

In the description of the present invention, the case where the connector is mounted on the circuit board is taken as an example, but the same effect can be obtained even when the connector is mounted on another device other than the circuit board.

[Brief description of drawings]

FIG. 1 is a principle diagram illustrating a configuration example of a connector according to the present invention.

FIG. 2 is a diagram for explaining an operating state of a main part of the connector of FIG. 1 in time series.

FIG. 3 is a conceptual diagram illustrating an example of a conventional connector configuration together with an eject mechanism.

FIG. 4 is a diagram illustrating a state when a card is inserted or removed.

[Explanation of symbols] 1 memory card 1a cut-and-raised piece 3 memory card connector 21a connector body 21b leg 21e guide groove 21e 'guide groove bottom 22 eject plate 22a cut-and-raised piece 23 eject plate moving lever 31 insulating housing 31a window Opening 31b Triangular projection (projection) 31b 'Slope 32 Eject operation rod 32a Tongue 231 Engagement part

Claims (1)

[Claims] 1. A memory card connector having an eject mechanism for detachably mounting a memory card on a circuit board or a device, the guide groove for guiding and inserting the memory card (1) at both widthwise sides thereof. Insulating casings (31) formed on both sides of the connector body (21a) so that the legs (21b) having (21e) have a U shape in plan view, and the insulating casing (31). An eject operation rod (32) mounted on the outside of one leg so as to be movable in the direction along the leg (21b), and engaging with the eject operation rod (32) and inserting it in the memory card insertion direction. When the eject operation rod (3
2) Move the memory card (1) connected to the connector body (21b) of the insulating casing (31) to the connector body (21b).
From the eject plate (22), an eject mechanism including an eject plate moving lever (23), and the eject operation rod (32), the eject operation rod (32) in the pressing direction. A memory card positioned between the legs of the insulating housing (31) by engaging with a protrusion (31b) formed at a predetermined position of the insulating housing (31) when moved.
A memory card connector comprising a tongue piece (32a) capable of pressing (1) on its side.