JP2003229204A - Fall-off prevention mechanism for recording card media - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fall-off prevention mechanism for recording card media capable of surely preventing a recording card medium from falling off in a simple operation. <P>SOLUTION: A connector 20, provided with a contact row 24 and an insulator 26, is further provided with a lock fitting 44. A notched part 18b of a card 10 and a hook part 50b of the insulator 26 make up a fall-off prevention mechanism. The lock fitting 44 is so structured that, by a force applied on a pinching part in a Y1-Y2 direction, it has its extended part 46 bent with a projected part 48 as a fixing point to come near or away from the insulator 26, and a top of the hook part 50b can be displaced by a displacement volume δ in the Y1-Y2 direction. The hook part 50b gets engaged with the notched part 18b of the card 10 by displacing in the y1 direction to prevent the card 10 from falling off. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism for preventing a card type recording medium from falling off.

[0002]

2. Description of the Related Art In a mobile PC such as a portable terminal which emphasizes portability, a card-type recording medium mounted on a connector incorporated in the apparatus may drop out due to vibration or shock during carrying. In addition, such a problem is mobile PC
Not only in the case, but also in a normal electronic device (recording / reproducing apparatus), there is a possibility that the degree may be large or small.

In order to avoid this inconvenience, as a fall-out preventing mechanism, for example, as shown in FIG. 1, a lock claw 4 is provided on an eject arm 3 for detaching the card type recording medium 2 mounted on the connector 1 from the connector 1. Rotatably provided,
The rear end portion of the card type recording medium 2 is locked by the lock claw 4 with the card type recording medium 2 mounted on the connector 1. In FIG. 1, reference numerals 5a and 5b are used.
Indicates a guide member for guiding the card type recording medium 2.

[0004]

However, the above-mentioned conventional card-type recording medium drop-out preventing mechanism is provided with an engaging structure between the eject arm and the lock claw so as to securely engage the card-type recording medium. The operation of the drop-out prevention mechanism tends to be complicated, and conversely, if priority is given to operability, the reliability of locking the card-type recording medium may be impaired.

Further, since the card-type recording medium is generally short in the lengthwise direction in the attaching / detaching direction, it is not always necessary to provide a guide member and an ejector arm, and some connectors do not currently have such a guide member and an eject arm. In this case, the card-type recording medium is more likely to fall off than a connector provided with a guide member and an eject arm unless the drop-out prevention mechanism is provided.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a drop-out prevention mechanism for a card-type recording medium that can reliably prevent the card-type recording medium from falling off with a simple operation. To aim.

It is another object of the present invention to provide a card-type recording medium drop-out prevention mechanism capable of reliably preventing the card-type recording medium from falling out of a connector not provided with an eject arm.

[0008]

According to the present invention, there is provided a card type recording medium drop-out preventing mechanism, which is provided for a card type recording medium when a detachable card type recording medium is electrically connected to a connector mounted on an electronic device. In the drop-out preventing mechanism, a notch portion formed on the card-type recording medium and an engaging portion provided on a contact attachment member of the connector for removably engaging with the notch portion. It is characterized (the invention according to claim 1).

Here, the electronic device means a device such as a personal computer having at least one function of recording and reproducing. The card type recording medium is, for example, a PC card or a CF card.

With the above arrangement of the present invention, the card-type recording medium can be reliably prevented from falling off by a simple operation by displacing the engaging portion. Further, since the eject arm does not need to be interposed, the device configuration of the connector is simple when the eject arm is not provided.
Further, for example, it is conceivable that the card-type recording medium according to the present invention is provided with an engagement portion and a contact attachment member is provided with a cutout portion in place of the fall-out prevention mechanism. It is necessary to provide an engaging portion that engages with the cutout portion for each card-type recording medium, and at this time, it becomes difficult to easily form the card-type recording medium having the engaging portion by a forming method. On the other hand, the card-type recording medium drop-out prevention mechanism according to the present invention does not have such a problem. In the present invention, it is preferable to dispose the operating portion that is operated by fingers to displace the engaging portion integrally with the engaging portion because the displacement operation of the engaging portion can be easily performed.

In this case, the engaging portion is flexibly attached to the contact attaching member, and is formed on an operating member provided so as to be proximate to and away from the contact attaching member. When the card-type recording medium is operated to engage and fix the card-type recording medium, the card-type recording medium is simultaneously sandwiched between the contact mounting member and the operating member, and the operating member is operated. By performing an operation of releasing the engagement of the card type recording medium, the state in which the card type recording medium is sandwiched between the contact attachment member and the operation member is released at the same time. (Invention of Claim 2), engagement or disengagement operation of a card type recording medium,
Since the card type recording medium can be detached or attached in almost one action, the operability is excellent.

After releasing the state in which the card-type recording medium is sandwiched between the contact mounting member and the operating member, the card-type recording medium is pulled out from the connector with fingers to remove the card-type recording medium. Completely disconnect from the connector.

Further, in this case, the contact mounting member may be provided with a stopper for restraining the operation of the engaging portion so that the displacement amount of the engaging portion is stopped within the range required for the engaging operation. According to the present invention), it is possible to prevent the strength of the engaging portion or the operating member from being lowered due to excessive bending.

Further, in this case, the connector includes an eject arm for detaching the mounted card type recording medium, the eject arm has a hooking portion, and the engaging portion has the contact mounting member. Is formed on an engaging member having a hooking portion that is attached to the hooking portion of the eject arm, and the ejecting arm is displaced by mounting the card-type recording medium. The engagement state of the engagement portion is released so that the engagement member is in a state without bending, the engagement portion engages with the cutout portion, and the eject arm is pushed to remove the card-type recording medium. When the eject arm is disengaged, both engaging portions are engaged with each other, the engaging member is bent, and the engagement between the engaging portion and the cutout portion is released. (Invention of Claim 4), the engagement operation and the mounting operation of the card type recording medium, and the disengagement operation and the detaching operation of the card type recording medium can be performed by one action respectively Excellent in performance. Here, a member such as a cam is engaged with the eject arm, and when the card-type recording medium is mounted, the card-type recording medium presses the cam or the like so that the eject arm is not in the mounting direction of the card-type recording medium. It is well known and obvious that it is configured to be biased in the opposite direction.

Further, in this case, if the portion of the engaging portion that is in sliding contact with the card-type recording medium is chamfered (the invention according to claim 5), the card-type recording medium may be damaged by abrasion or abrasion. Can be prevented.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment (hereinafter referred to as an embodiment of the present invention) of a falling-out prevention mechanism for a card type recording medium according to the present invention will be described below with reference to the drawings.

First, the mechanism for preventing the card type recording medium from falling off according to the first example of the present embodiment will be described with reference to FIGS. 2 is a perspective view of the connector before attaching a lock fitting described later, FIG. 3 is a perspective view of the connector with the lock fitting attached, and FIG. 4 is a partial view of the connector viewed from the X2 direction in FIG. And FIG. 5 is FIG.
6 is a partial view of the connector viewed from the middle X1 direction, FIG. 6 is a partial view of the connector viewed from the Z1 direction in FIG. 3, and FIG. 7 is a partial view of the connector viewed from the Y1 direction in FIG. FIG. 8 is a perspective view of a card-type recording medium (hereinafter, simply referred to as a card if necessary) to be attached to the connector of the first example of the present embodiment.

The card-type recording medium drop-out prevention mechanism according to the first example of the present embodiment has a simple structure in which the guide member and the eject arm described in the conventional example are not specially provided and the card-type recording medium. It is about the mechanism for preventing the falling off.

First, the card will be described first.

As shown in FIG. 8, the card 10 is a thin-walled rectangular parallelepiped, and has a plurality of contacts arranged in two rows vertically (not shown). Projecting surfaces 14a and 14b are formed on the upper and lower surfaces 12a and 12b, respectively. In addition, a plurality of surface contacts 16 are provided on the tip portions of the upper and lower surfaces 12a and 12b.
Are formed (the surface contact of the lower surface 12b is not shown). Further, the card 10 is formed with notches 18a and 18b having openings in the Z1 direction and the X1 direction or the X2 direction in FIG.

Next, the connector 20 of the first example of the present embodiment has a plurality of contacts 22a and 22b as shown in FIG.
Contact row 24 arranged in two rows in the middle Y1-Y2 direction
And an insulator (contact attachment member) 26 that holds the contact row 24.

Each contact 22a of the contact row 24,
22b is a connection part 28a, a holding part 28b, and a contact part 2
And 8c. The connection portion 28a is soldered and surface-mounted to a terminal (not shown) of a substrate provided in the housing of the electronic device arranged on the X1 side in FIG. 2, so that the connector 20 is connected to the electronic device. It is electrically connected. The holding portion 28b is provided by connecting the connection portion 28a and the contact portion 28c, and is inserted and held in a hole (not shown) of the insulator 26 to fix the contacts 22a and 22b to the insulator 26. . The contact portion 28c has a spring property, and when the card 10 is mounted on the connector 20, the contact portion 28c is connected to the surface contact 16 of the card 10, so that the connector 20 is electrically connected to the card 10.

The insulator 26 is formed in a substantially H shape, and together with the fixing portion 30 for fixing the contact row 24, the extending direction of the contact row 24 on both sides of the contact row 24 (Z in FIG. 3).
The protrusions 32 and 32 extend along the (1-Z2 direction). A hole 34 for fixing the connector 20 to the substrate by inserting a fastening member (not shown) into one end of each protrusion 32.
And a projection 36 for positioning and fixing the connector 20 on the board by inserting it into a hole (not shown) formed in the board. On the other hand, at the other end of the projecting portion 32, a concave short rail portion 38 for guiding and holding the leading end portions on both sides in the mounting direction of the card 10 is formed. Also,
In the rail portion 38 of the protrusion 32 on the left side in FIG. 2, a slit 40 opened in the X1 direction is formed substantially at the center side, and a notch portion 42 opened in the X1 direction and the Y1 direction in FIG. Are formed.

The connector 20 of the first example of the present embodiment
Further includes a lock fitting 44.

The lock fitting 44, as shown in FIG.
One end of the extending portion 46 extending in the plate shape in the 1-Z2 direction has Y2.
The protrusion 48 is formed by being bent in the Z2 direction and then folded back in the Z2 direction, and the protrusion 48 has a tip end 48a extending in the X2 direction. On the other hand, the other end of the extending portion 46 is formed in the wide portion 50 wider than the extending portion 46, one end of the wide portion 50 on the X2 side is bent in the Y1 direction to form the grip portion 50a, and The other end is bent into a hook shape in the Y2 direction to form a hook portion (engagement portion) 50b. The peak portion of the hook portion 50b (indicated by the arrow X in FIG. 2) is Z.
It is formed in a tapered shape in which the width decreases from the 2 side toward the Z 1 side.

The cutout portion 18a of the card 10 described above,
18b and the hook portion 50b of the lock fitting 44 of the insulator 26
Constitute a card-type recording medium drop-out prevention mechanism of the first example of the present embodiment. In the first example of the present embodiment, since only one lock fitting is provided as described above, one of the cutouts 18a and 18b of the card 10 is not used, that is, played. Become.

The lock fitting 44 is attached to the insulator 26 as shown in FIG. That is, the protrusion 48 of the lock fitting 44 is moved from the tip end 48a to the slit 4 of the insulator 26.
After press-fitting into 0, the wide portion 50 is engaged with the cutout portion 42 of the insulator 26. Further, the metal fitting indicated by reference numeral 52 is incorporated into the insulator 26 to support the back surface side (X1 side in FIG. 3) of the lock metal fitting 44. The lock fitting 44 is pressed into the slit 40 by applying force in the Y1-Y2 direction in FIG.
As a fixed point, the extending portion 46 bends to approach or separate from the insulator 26, and as shown in FIG. 4, the top portion of the hook portion 50b (see FIG.
It is indicated by the middle arrow Y. ) Is displaceable in the Y1-Y2 direction by the displacement amount δ. In FIG. 4, the protrusion 32 of the insulator 26 is partially broken to expose the hook 50b. Although the lock fitting 44 may be provided as a separate component from the insulator 26 as shown in FIG. 3, the invention is not limited to this, and the protrusion 48 is embedded in the insulator 26 to be integrally formed with the insulator 26. Good.

The first of the present embodiment configured as described above
The operation of the mechanism for preventing the connector 20 from falling will be described.

When the card 10 is attached to the connector 20, the grip portion 50a of the lock fitting 44 is operated with fingers to push it open in the Y1 direction in FIG. 3 or FIG.
The tip portion Y of 0a is displaced in the Y1 direction, and the card 10 is
A gap (δ) for allowing the card 10 to enter when being inserted in the direction of the hollow arrow is secured. In this state, the card 10 sandwiched by the other fingers is inserted between the rail portions 38, 38 so that the surface contact 16 of the card 10 contacts the contact 22.
Card 1 to the position where it contacts the contact part 28c of a and 22b
The card 10 is attached to the connector 20 by inserting 0. In this state, by loosening the force applied to the grip portion 50a, the tip portion Y of the hook portion 50a is returned in the Y2 direction by the spring force of the lock fitting 44, and the notch portion 18b of the card 10 is returned.
Engage with. At this time, since the clearance (δ) for allowing the card 10 to enter is secured, the card 10 is not attached to the hook portion 5.
It is inserted while slightly slidingly contacting the tip portion Y of 0a.

When the card 10 is attached to the connector 20, the notch 18b of the card 10 is engaged with the tip Y of the hook 50a of the lock fitting 44, so that the card 10 can be operated even when an external force is applied. It does not fall off from the connector 20.

On the other hand, when the card 10 is removed from the connector 20, the grip 50a of the lock fitting 44 is operated with fingers to push open in the Y1 direction in FIG. 3 or FIG.
The tip Y of the hook 50a is displaced in the Y1 direction, and in this state, the card 10 is removed from the connector 20 by pulling out the card 10 with another finger. At this time, since the clearance (δ) for retracting the card 10 is secured, the card 10 is pulled out while slightly slidingly contacting the tip Y of the hook 50a.

According to the card dropout prevention mechanism according to the first example of the present embodiment described above, the card dropout can be surely prevented by a simple operation. Further, since the eject arm is not provided, the device configuration of the connector is simple. Further, for example, it is conceivable to provide an engaging portion on the card and form a cutout portion on the insulator in place of the above-mentioned card fall-out prevention mechanism, but in this case, it is necessary to provide an engaging portion for each card. Further, at this time, it becomes difficult to easily form the card having the engaging portion by the forming method. However, according to the card drop-out prevention mechanism according to the first example of the present embodiment, There is no defect. Also, card 1
When the card 0 is attached / detached to / from the connector 20, the side surface of the card 10 only slightly contacts the hook portion 50a of the lock fitting 44, so that the side surface of the card 10 is less likely to be damaged by being scraped off.

Here, a modification of the lock fitting 44 will be described with reference to FIG.

Like the lock fitting 44, the lock fitting 54 according to the modified example is composed of an extending portion 56, a protrusion 58 and a wide portion 60. However, the tip 58a of the protrusion 58 is formed in a bulge shape having irregularities at both upper and lower ends in FIG.
Further, an edge portion extending in the vertical direction in FIG. 9 of the tip portion (indicated by an arrow Y1 in FIG. 9) of the hook portion 60a formed in the wide portion 60 is chamfered and rounded (in FIG. 9). The point is indicated by an arrow R.) The point is different from the lock fitting 44.

According to the lock fitting 54 of the modification, since the tip portion 58a is formed in a bulge shape, the tip portion 5
8a can be securely press-fitted into the slit 40 of the insulator 26 and fixed, and since the edge portion of the tip portion Y1 of the hook portion 60a is rounded, the side surface of the card 10 is the tip portion of the hook portion 60a. It is possible to more reliably prevent damage to the card 10 when it comes into sliding contact with Y1.

Next, the fall prevention mechanism of the card type recording medium according to the second example of the present embodiment will be described with reference to FIG.

The basic structure of the connector 61 having the card-type recording medium dropout prevention mechanism according to the second example of the present embodiment is the same as that of the connector 20 according to the first example of the present embodiment, and therefore is duplicated. The description will be omitted.

In the two projecting portions 32 of the connector 61, holes 62 are formed in the lower rail 38a which constitutes the rail portion 38 (in FIG. 10, the upper rail of the rail portion 38 of the insulator 26 is partially broken). And, only one hole 62 is shown). Further, a substantially plate-shaped flexible metal operating member 64 is integrally formed with the insulator 26 by fixing one side on the back side in FIG. 10 to the insulator 26. The operating member may be provided as a separate component from the insulator 26. Operation member 6
A tongue-shaped grip portion 66 is formed slightly above the main surface (flat plate portion), that is, in a state of protruding toward the lower rail 38a, on one side of the front side of the operation member 64. Has a protruding portion (engaging portion) 68 that protrudes upward and rises in an arc shape from the front side toward the rear side (only one protruding portion 68 appears in FIG. 10). The operating member 64 bends in the vertical direction so as to be able to approach and separate from the insulator 26, and the projection 68 is inserted through the hole 62 and protrudes upward or retracts below the hole 62. It is configured. Notch 18 of card 10
The cards a and 18b and the projection 68 of the operation member 64 constitute a card dropout prevention mechanism according to the second example of the present embodiment.

In the connector 61 constructed as described above, when the card 10 is mounted, the grip portion 66 is attached to the lower rail 38a.
By pushing it downward with your fingers.
When the card 1 escapes below the hole 62,
0 is gripped and inserted into the connector 61. After the card 10 is inserted, the force of pushing down the grip portion 66 is loosened, so that the protrusion 68 causes the hole portion 6 to move due to the spring force of the operating member 64.
2 and goes up, and the notch 18a of the card 10
18b is engaged. As a result, in the process of mounting the card 10, the lower surfaces of both end portions of the card 10 only slightly slide on the arcuate portions of the protrusions 68, so that the card 10 is less likely to be damaged. Further, even when an external force is applied, the card 10 does not drop off from the connector 61. Also,
At this time, the lower surface of the card 10 is pressed upward by the grip portion 66, and the card 10 is sandwiched between the rail portion 38 and the grip portion 66.

On the other hand, when the card 10 is pulled out, the grip portion 66 is pushed down with a finger so that the protruding portion 68 escapes below the hole portion 62 and the grip portion 66 is separated from the lower surface of the card 10. Pull out. As a result, in the process of pulling out the card 10, the lower surfaces of both end portions of the card 10 are only slightly in sliding contact with the protrusions 68, so that the card 10 is less likely to be damaged.

According to the card-type recording medium drop-out prevention mechanism according to the second example of the present embodiment, the grip portion 66 is substantially provided.
In one action to operate the
The operation of engaging the card 10 with the insulator 26 and the operating member 6
It is possible to simultaneously perform an operation of pinching and fixing the card 10 and the like with each other, and an operation of releasing the engagement of the card 10 and a state of pinching the card 10 between the insulator 26 and the operating member 64 are released. It is possible to simultaneously perform the operation of performing.

Although the protrusions 68 are provided on both sides of the operating member 64 in the second example of the present embodiment, the present invention is not limited to this, and either one of the two protrusions may be omitted. .

Next, a fall prevention mechanism for a card type recording medium according to a third example of the present embodiment will be described with reference to FIG.

The basic structure of the connector 70 provided with the card-type recording medium dropout prevention mechanism according to the third example of the present embodiment is substantially the same as that of the connector 61 according to the second example of the present embodiment.

However, a hole 72 is formed in the side wall of the rail portion 38 in the two projecting portions 32 of the connector 70 (the projecting portion 32 is partially broken in FIG. 11 and only one hole 72 is formed). It appears.). Further, one set of operation members 74 is provided so as to face each other along the two protruding portions 32. Each operation member 74 is integrally formed with the insulator 26 by fixing the end portion on the back side in FIG. 11 to the insulator 26. The operation member 74 may be provided as a separate component from the insulator 26. The front end portion of the operation member 74 is bent in a tongue shape so as to project inward from the side wall of the rail portion 38, and the grip portion 7 is formed.
6 is formed. Further, the operation member 74 is directed inward,
A projecting portion 78 is formed so as to project in an arc shape from the front side to the back side (the projecting portion 32 is partially broken in FIG. 11 to show only one projecting portion 78). Each operation member 74
Is configured to be bent in the left-right direction so as to be able to approach and separate from the insulator 26, and the projection 78 is inserted through the hole 72 and protrudes inward or recedes outside the hole 72. There is.

In the connector 70 having the above-described structure, when the card 10 is mounted, the two gripping portions 76 are pushed open by fingers, so that the protrusion 78 escapes to the outside of the hole 72, and the other Hold the card 10 with your fingers and hold the connector 7
Insert at 0. After inserting the card 10, by loosening the force of pushing the grip 76, the protrusion 78 is inserted through the hole 72 and protrudes inward by the spring force of the operating member 74, and the notches 18a and 18b of the card 10 are formed. Engage with. As a result, in the process of mounting the card 10, the card 1
Since the bottom surfaces of both end portions of 0 only slightly contact the protrusions 68, the risk of damaging the card 10 is small. Also,
Even if an external force is applied, the card 10 does not drop off from the connector 61. At this time, the card 10 is held between the grips 76.

On the other hand, when the card 10 is pulled out, the two gripping portions 76 are pushed open with fingers, and the card 10 is pulled out in a state in which the protrusion 78 has escaped to the outside of the hole 72. As a result, since the lower surfaces of both end portions of the card 10 are only slightly in sliding contact with the protrusions 78 in the process of pulling out the card 10, the risk of damaging the card 10 is small.

According to the card-type recording medium drop-out prevention mechanism according to the third example of the present embodiment, the same effect as the card-type recording medium drop-out prevention mechanism according to the second example of the present embodiment can be obtained. Obtainable.

Although a set of operating members 74 is provided in the third example of the present embodiment, the present invention is not limited to this, and either one of the operating members may be omitted.

Next, in the card drop-out prevention mechanism of the first example or the second example of the present embodiment, the card 10
Regarding an example in which the insulator is provided with a stopper that suppresses the operation of the protrusions so that the displacement amount of the protrusions (engagement portions) that engage with the notches 18a and 18b of the protrusions is within the range necessary for the engagement operation , And FIG. 12 and FIG.

In the connector 80 of FIG. 12, a claw-shaped stopper 84 for restricting the operation of pushing the operation member 82 in the direction of the white arrow in FIG. 12 is provided on the protruding portion 32 of the insulator 26. As a result, when the operating member 82 is pushed open to the right in FIG. 12, the displacement amount is regulated to the position where the operating member 82 contacts the stopper 84. Therefore, a protrusion (not shown) (not shown in FIG. 11) that may be caused by excessive bending
See protrusion 78. ) Or, the strength of the operating member 82 can be prevented from decreasing.

Further, in the connector 86 of FIG. 13, hook-shaped portions 88a, 88 in which the front end of the operating member 88 is vertically opposed to each other.
b, the hook-shaped portions 88a and 88b are loosely inserted into the holes 90 formed in the protrusion 32 of the insulator 26 (FIG. 1).
Of the three, only one hole 90 appears. ). As a result, when the operating member 88 is pushed open in the right direction in FIG. 13, the displacement amount of the operating member 88 is restricted to the moving amount within the hole 90. For this reason, it is possible to prevent a decrease in the strength of the protrusion (not shown) (see protrusion 78 in FIG. 11) or the operating member 88 that may occur due to excessive bending.

Next, a card-type recording medium dropout prevention mechanism according to a fourth example of the present embodiment will be described with reference to FIG.

The connector 90 provided with the mechanism for preventing the card type recording medium from falling off according to the fourth example of the present embodiment is the connectors 20, 61 according to the first to third examples of the present embodiment.
Unlike 70, this type is provided with a guide member for guiding the card 10 and an eject arm for ejecting the card 10 arranged along the guide member. Since the guide member and the eject arm are similar to the guide members 5a and 5b and the eject arm 3 of the conventional example shown in FIG. 1, the main parts of the guide member and the insulator to which the guide member is attached are omitted from the illustration, In FIG.
Only the card dropout prevention mechanism and eject arm are shown.

The connector 90 includes an engaging member 92 made of a metal material. The engaging member 92 has one end fixed to the insulator 26 and the other end bifurcated. A projecting portion 96 that projects inward is formed on one branch portion 94a. The other branching portion 94a is bent in the vicinity of the branching start point and is formed into an L shape. Here, the root portions of the two branch portions 94a and 94b are the engaging portions 106.
Make up. The engaging member 92 can bend in the left-right direction in FIG. 14 with the one end as a fixed point.

The eject arm 98 is arranged so as to support one branch portion 94b of the engaging member 92 at a position on the back side of the paper surface in FIG. Eject arm 98
Has a cam 100 attached to the upper end in FIG.
A button 102 is provided at the lower end. In addition, the eject arm 98 has a projection (engaging portion) 10 that projects toward the engaging member 92 in the intermediate position toward the front side of the paper surface of FIG.
4 are provided.

When the card 10 is mounted on the connector 90, the tip of the card 10 pushes the cam 100 upward in FIG. 14, whereby the cam 100 rotates clockwise, and the ejected cam 100 is engaged. The arm 98 is pushed down. FIG. 14 shows a state in which the card 10 is mounted. At this time, the protrusion 104 of the eject arm 98, which is engaged with the engaging portion 106 of the engaging member 92, moves downward from the engaging portion 106 along the inner surface of the L-shaped branch portion 94b. As a result, in the engaged state, the protrusion 104
The branching portion 94b and the branching portion 94a are bent toward the outside which is the right direction in FIG. 14, so that the engaging member 92 is released from the bending force and restored toward the inside by the spring force.
The protrusion 96 engages with the notches 18 a and 18 b of the card 10.

When the card 10 is attached to the connector 90, the engaging member 9 is fitted into the cutout portion 18b of the card 10.
Since the second protrusion 96 is engaged, the card 10 does not drop out of the connector 90 even when an external force is applied.

On the other hand, when the card 10 is pulled out, by pushing the button 102 with a finger to push the eject arm 98 upward in FIG. 14, the cam 100 engaged with the eject arm 98 rotates counterclockwise, 10
Are pushed downward from the connector 90. At this time, the projection 104 of the eject arm 98 enters between the branch portions 94a and 94b along the inner surface of the L-shaped branch portion 94b and reaches the engaging portion 106. As a result, the branch portion 94b and the branch portion 94a engaged with each other by the protrusion 104 bend outward, and the protrusion portion 96 causes the notch portion 1 of the card 10.
The engagement state with 8a and 18b is released.

According to the card-type recording medium drop-out prevention mechanism according to the fourth example of the present embodiment, the card engaging operation and mounting operation, and the card disengaging operation and releasing operation are respectively performed. It can be performed with one action and has excellent operability.

[0061]

According to the card-type recording medium drop-out prevention mechanism of the first aspect, the notch formed in the card-type recording medium and the contact mounting member of the connector are provided.
The card-shaped recording medium can be surely prevented from falling off by a simple operation, since the notch portion is composed of an engaging portion that is detachably engaged with the notch portion. Further, since the eject arm does not need to be interposed, the device configuration of the connector is simple when the eject arm is not provided.

According to the card-type recording medium drop-out prevention mechanism of the second aspect, the engaging portion is attached to the contact attachment member so as to have flexibility, and can be brought close to or separated from the contact attachment member. The card type recording medium is formed on the provided operation member and is operated to engage and fix the card type recording medium to simultaneously hold the card type recording medium between the contact attachment member and the operation member. By operating the operation member to release the engagement of the card-type recording medium, the state where the card-type recording medium is sandwiched between the contact attachment member and the operation member is released at the same time. Because it has been done
Since the engagement or disengagement operation of the card type recording medium and the disengagement or mounting operation of the card type recording medium can be performed in substantially one action, the operability is excellent.

According to the card-type recording medium drop-out prevention mechanism of the third aspect, the stopper for suppressing the operation of the engaging portion so that the displacement amount of the engaging portion stays within the range required for the engaging operation. Since the contact mounting member is provided with, it is possible to prevent a decrease in strength of the engaging portion or the operating member that may be caused by excessive bending.

According to the card-type recording medium dropout prevention mechanism of the fourth aspect, the connector includes an eject arm for detaching the mounted card-type recording medium, and the eject arm has a hooking portion. , The engaging portion is formed on the engaging member that is attached to the contact attaching member so as to have flexibility and has an engaging portion that engages with the engaging portion of the eject arm, and by mounting the card type recording medium, The eject arm is displaced so that the engaging state of both engaging portions is released, the engaging member is in a state without bending, the engaging portion engages with the cutout portion, and the eject arm is pushed to perform a card-type recording. When the eject arm is displaced when the medium is detached, both engaging portions are engaged with each other, the engaging member is bent, and the engagement between the engaging portion and the cutout portion is released. Made for the engaging operation and the mounting operation of the card-type recording medium, and a disengagement operation and desorption operation of the card-type recording medium, it can be done in one action, respectively, excellent operability.

According to the card-type recording medium drop-out prevention mechanism of the fifth aspect, since the portion of the engaging portion that is in sliding contact with the card-type recording medium is chamfered, the card-type recording medium is worn or scraped. Can be prevented from being damaged.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic configuration of a connector for explaining a conventional card-type recording medium dropout prevention mechanism.

FIG. 2 is a perspective view of a connector before attaching a lock fitting, for explaining a falling-out prevention mechanism of a card type recording medium according to a first example of the present embodiment.

FIG. 3 is a perspective view of a connector with a lock fitting attached, for explaining a falling-out prevention mechanism of a card type recording medium according to a first example of the present embodiment.

FIG. 4 is a partial view of the connector seen from the X2 direction in FIG. 3 for explaining the fall-out prevention mechanism of the card type recording medium according to the first example of the present embodiment.

FIG. 5 is a partial view of the connector seen from the X1 direction in FIG. 3 for explaining the fall-out prevention mechanism of the card type recording medium according to the first example of the present embodiment.

FIG. 6 is a partial view of the connector as viewed from the Z1 direction in FIG. 3 for explaining the mechanism for preventing the card type recording medium from falling off according to the first example of the embodiment.

FIG. 7 is a partial view of the connector seen from the Y1 direction in FIG. 3 for explaining the fall-out prevention mechanism of the card type recording medium according to the first example of the embodiment.

FIG. 8 is a perspective view of a card-type recording medium to be attached to the connector of the first example of the present embodiment.

FIG. 9 is a view showing a modified example of the lock fitting of the connector of the first example of the present embodiment.

FIG. 10 is a perspective view of a connector and a card for explaining a falling-out prevention mechanism of a card type recording medium according to a second example of the present embodiment.

FIG. 11 is a perspective view of a connector for explaining a card-type recording medium dropout prevention mechanism according to a third example of the present embodiment.

FIG. 12 is a diagram showing a first example in which an insulator is provided with a stopper that suppresses the movement of the protrusion so that the amount of displacement of the protrusion is stopped within the range necessary for the engaging operation.

FIG. 13 is a diagram showing a second example in which an insulator is provided with a stopper that suppresses the movement of the protrusion so that the displacement of the protrusion is stopped within the range required for the engaging operation.

FIG. 14 is a partial view of a connector for explaining a falling-out prevention mechanism of a card type recording medium according to a fourth example of the present embodiment.

[Explanation of symbols]

10 cards 16 surface contact 18a, 18b Notch 20, 61, 70, 80, 86, 90 Connector 22a, 22b contacts 24 contact rows 26 Insulator 30 Fixed part 32 protrusion 38 Rail 38a Lower rail 44, 54 Lock bracket 46, 56 Extension 48, 58, 68, 78, 96 Protrusion 48a, 58a Tip 50, 60 wide part 50a, 66, 76 gripping part 50b, 60a Hook part 52 metal fittings 64, 74, 82, 88 Operation member 84 stopper 88a, 88b hook-shaped part 92 Engagement member 94a, 94b bifurcation 98 eject arm 100 cams 102 button 104 protrusion 106 Engagement part

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Noboru Shimizu             2-3-5 Higashigotanda, Shinagawa-ku, Tokyo Wealth             Within Shitsutsu Component Co., Ltd. F term (reference) 5B035 AA00 BA02 BB09 CA01 CA08                 5B058 CA02 CA04 CA13 KA12 KA24                       KA40                 5E021 FA05 FA09 FB18 FC36 HC11                       HC36                 5E023 AA04 AA21 BB25 DD19 FF07                       GG08 HH01 HH22

Claims (5)

[Claims] 1. A mechanism for preventing a card-type recording medium from coming off when a card-type recording medium detachable from a connector mounted on an electronic device is electrically connected, wherein a notch portion is formed on the card-type recording medium. A fall-out preventing mechanism for a card-type recording medium, comprising: an engaging portion provided on a contact attaching member of the connector and detachably engaging with the cutout portion. 2. The engagement portion is attached to the contact attachment member so as to have flexibility, and is formed on an operation member provided so as to be proximate to and away from the contact attachment member, and the operation member is operated. Then, the card-type recording medium is engaged and fixed to simultaneously hold the card-type recording medium between the contact mounting member and the operating member, and operate the operating member to operate the card-type recording medium. By performing the operation of releasing the engagement of the card type recording medium, the state in which the card type recording medium is sandwiched between the contact attachment member and the operation member is released at the same time. The mechanism for preventing a card type recording medium from falling off according to claim 1. 3. The contact mounting member is provided with a stopper that suppresses the operation of the engaging portion so that the displacement amount of the engaging portion stops within a range required for the engaging operation. The fall prevention mechanism for a card type recording medium according to 1 or 2. 4. The connector includes an eject arm for detaching the mounted card-type recording medium, the eject arm having a hooking portion, and the engaging portion being flexible to the contact attachment member. Formed on an engaging member having an engaging portion that engages with the engaging portion of the eject arm, the eject arm is displaced by mounting the card-type recording medium, and When the engagement state is released and the engagement member is in a state without bending, the engagement portion engages with the cutout portion, and the eject arm is pushed in to detach the card type recording medium. When the eject arm is displaced, both engaging portions are engaged with each other, the engaging member is bent, and the engagement between the engaging portion and the cutout portion is released. The card-type recording medium falling prevention mechanism according to claim 1. 5. The card-type recording medium according to claim 1, wherein a portion of the engaging portion that is in sliding contact with the card-type recording medium is chamfered. mechanism.