CN101345372A - Connector for memory card - Google Patents

Abstract

The invention provides a simple structured connector (1) for memory card (200) capable of simply and smoothly ejecting memory card. The invention is characterized in that the connector of memory card comprises: a shell (10); a sliding cover (30), mounted on shell (10) moving back and forth and forming a card slot with shell; a connecting terminal fixed on shell; a spiral spring, accommodated in a recess on the shell and matching with shell (10) and sliding cover (30) to exert backward force to the sliding cover (30); ejection claws (39,39), forming on the sliding cover (30),and matching with memory card inserted in card slot (20) and discharging memory card (200) forwards when the sliding cover moves forward.

Description

Connector for memory card

technical field

The present invention relates to a memory card connector used for writing data to or reading data from a memory card such as an IC card used in small electronic devices such as mobile phones and personal computers.

Background technique

Conventionally, such a memory card connector is known as a memory card connector 100 shown in FIGS. 5 to 8 (Patent Document 1: Japanese Patent Laid-Open No. 2007-66586).

That is, the memory card connector 100 includes: a housing 110 as shown in FIG. A plurality of terminals 150 having contact portions 150 contactable with electrode portions of the memory card 200 inserted into the card insertion slot 120; and a slider 160 movably installed along the upper surface of the cover 130 are assembled to form a Formed as shown in FIG. 5 and FIG. 7 .

Guide portions 161 , 161 that cooperate with guide pieces 131 , 131 formed on both sides of the cover 130 are formed on the slider 160 , and the slider 160 is movably guided along the insertion and extraction direction of the memory card 200 . Further, front stopper steps 111, 111 are formed on the housing 110 to abut against the guides 161, 161 when the slider 160 moves forward to limit the forward movement. The guides 161 , 161 abut against rear brake steps 112 , 112 that restrict rearward movement, and the front-rear movement of the slider 160 is restricted between these brake steps 111 , 111 , 112 , 112 .

In addition, when pulling out the memory card 200 inserted into the card insertion slot 120 of the memory card connector 100, the slider 160 is pulled out forward by grasping the handle 162 provided at the front end of the slider 160 . As the slider 160 is pulled out, the eject claws 163 , 163 provided on the rear end of the slider 160 pull the memory card 200 out of the card insertion slot 120 . Then slide block 160 is pressed in backward. Only the memory card 200 is pulled out forward by the pushing of the slider 160, and the memory card 200 is pulled out from the card insertion slot 120 of the memory card connector 100 by grasping the memory card 200. come out.

However, the conventional memory card connector 100 shown in FIGS. 5 to 8 has a complex structure because it includes a housing 110 , a cover 130 , a plurality of terminals 150 , and a slider 160 .

Moreover, when pulling out the memory card 200 inserted into the card insertion slot 120 of the memory card connector 100, since it is necessary to pull out the slider 160 and pull out the memory card 200 from the card insertion slot 120, the The memory card 200 is only operated in three steps: the operation of pushing the slider 160 and the operation of pulling out the remaining memory card 200 , so there is a problem that the ejection operation of the memory card 200 is complicated.

In addition, when the memory card 200 is ejected, not only the lower surface of the memory card 200 and the electrode portion are in sliding contact with the contact portions of the plurality of terminals 150 to form resistance, but also the upper surface of the memory card 200 is in sliding contact with the inner surface of the cover 130 to form resistance. Therefore, there is a problem that the pull-out resistance of the memory card 200 becomes large.

Contents of the invention

The present invention has been made in view of the above problems, and an object of the present invention is to provide a connector for a memory card that has a simple structure and can easily and smoothly eject a memory card.

The invention described in Claim 1 is a connector for memory cards, comprising: a housing; mounted on the housing in a manner that can move in the front-rear direction, and forming a card insertion port with the front as an insertion port between the housing and the housing; The sliding cover made of metal of the slot; the connecting terminal fixed on the above-mentioned housing and having a contact portion that can contact the electrode portion of the memory card inserted into the above-mentioned card insertion slot; accommodated in the terminal formed on the above-mentioned housing. A coil spring that urges the slide cover backward by cooperating with the housing and the slide cover in the spring accommodation recess is characterized in that a coil spring that is in contact with the slide cover when the slide cover is moved forward is formed on the slide cover. The memory card inserted into the card insertion slot engages with an ejection claw that ejects the memory card forward.

The invention described in claim 2 is the memory card connector according to claim 1, characterized in that it has a fixing terminal fixed on the housing, and the fixing terminal has a terminal extending from the outer surfaces on both sides of the housing to the outside substantially horizontally. The protruding horizontal part and the connection part connected with the above-mentioned horizontal part and the substrate, the sliding cover has: a sliding cover main body covered on the above-mentioned housing; The horizontal part cooperates to guide the sliding cover movable in the front-rear direction, and restricts the first guide piece that the above-mentioned sliding cover moves backward; The claws and discharge claws are provided so as to hang downward from the rear end of the slide cover main body.

The invention described in claim 3 is the memory card connector according to claim 2, characterized in that the first guide piece is provided downwardly from both sides of the slide cover main body, and restricts the guide piece when the slide cover moves backward. The brake piece portion that the slide cover moves to the rear; and the front end side of the above brake piece portion is continuously provided to the rear, and a guide gap with a rear side opening is formed between the slide cover body and the above-mentioned slide cover body, and the fixing terminal can be In the arm piece portion which is movable in clearance fit with the guide, a stop pawl is provided so as to protrude upward from the front end portion of the arm piece portion.

The invention described in claim 4 is the memory card connector according to claim 1, 2, or 3, wherein the housing includes a base plate formed in a substantially rectangular plate shape and side plates erected upward from both sides of the base plate. A guide step portion along the front-rear direction is formed on the outer surface of the above-mentioned side plate, and a spring receiving recess is formed on at least one of the above-mentioned side plates with the upper side as an opening along the front-rear direction. The second guide piece, which is provided vertically downward and movably engaged with the above-mentioned guide step portion in the forward-backward direction, is formed by cutting and erecting on the above-mentioned slide cover, and is formed with the rear end of the coil spring accommodated in the above-mentioned spring receiving recess. Fitted mating tabs.

The present invention has the following effects.

In the invention described in Claim 1, a connector for a memory card is constituted by a housing, a sliding cover, a plurality of connection terminals, and a coil spring, and the two components of the conventional cover and the slider are made into a single component of the sliding cover. Therefore, the structure can be simplified.

And, when pulling out the memory card inserted in the card insertion slot, pull out the slide cover and use the eject claw to pull the memory card out of the card insertion slot and then release the pull-out of the slide cover, then the slide will be made by the restoring force of the coil spring. The cover returns to its original position (predetermined initial position), and the operation of merely pushing in the slider as in the conventional example is unnecessary. Therefore, the ejection operation of the memory card is performed in two stages: the operation of pulling out the slide cover and pulling the memory card out of the card insertion slot, and the operation of pulling out the remaining memory card after releasing the pull-out of the slide cover. It can be solved, and the ejection operation of the memory card can be made easier than in the conventional example.

Moreover, when the memory card is ejected, since the memory card moves in conjunction with the sliding cover, the upper surface of the memory card does not come into sliding contact with the inner surface of the sliding cover, and only the lower surface of the memory card and the electrode portion are in contact with a plurality of connecting parts. Since the contact portion of the terminal slides into contact and acts as resistance, the ejection operation of the memory card can be performed smoothly.

In the invention described in claim 2, on the basis of claim 1, the fixing terminal fixed on the housing has a horizontal portion, and the first guide piece formed on the sliding cover is movable in the front-rear direction in cooperation with the horizontal portion of the fixing terminal. The slide cover is accurately guided and the slide cover is restricted from moving backward, and the defined claws restrict the slide cover from moving forward, so the metal fixing terminals can be used to withstand the force applied to the slide cover when ejecting the memory card. The strength of the connector can be improved, and the strength against the slide cover falling off from the case can be improved.

In the invention described in claim 3, on the basis of claim 2, the first guide piece is formed with the brake piece portion and the arm piece portion, and the brake pawl is protruded upward from the front end portion of the arm piece portion, so the first guide piece can be simplified. The structure of the guide plate and the brake pawl.

In the invention described in claim 4, on the basis of claim 1, 2 or 3, a guide step and a spring accommodating recess are formed on the side plate of the housing, and a second guide that cooperates with the guide step is provided on both sides of the sliding cover to hang down. sheet, and form a fitting protrusion on the sliding cover by cutting and standing up, and the fitting protrusion is matched with the rear end of the coil spring accommodated in the spring receiving recess to apply force to the rear of the sliding cover, so it is possible to simplify the use of the relative housing. A structure for moving the slide cover forward and backward, and a structure for returning the slide cover to its original position when the memory card is ejected.

Description of drawings

FIG. 1 is a perspective view showing an embodiment of a memory card connector according to the present invention.

FIG. 2 is a perspective view of the memory card connector 1 of FIG. 1 seen from a different viewpoint from FIG. 1 .

FIG. 3 is an exploded perspective view of the memory card connector 1 .

4 is a diagram for explaining each operation of fitting, ejecting, and taking out of the memory card 200 with respect to the memory card connector 1, (a) is when the card is fitted, (b) is when the card is ejected, (c) It is an explanatory figure at the time of card removal.

Fig. 5 is a plan view showing a conventional example.

FIG. 6 is a diagram showing a state before the cover 130 and the slider 160 are attached to the memory card connector 100 of FIG. 5 , and is a plan view of the case 110 in which a plurality of terminals 150 are incorporated.

FIG. 7 is an enlarged cross-sectional view of the memory card connector 100 cut along the front-rear direction.

FIG. 8 is an exploded perspective view of the memory card connector 100 .

In the picture:

1-connector for memory card, 10-housing, 12-bottom plate, 13-side plate, 18-spring receiving recess, 20-card insertion groove, 30-sliding cover, 32-sliding cover main body, 33-handle, 34 -Brake part, 35-Gap for guidance, 36-Arm part, 37-Brake pawl, 38-Second guide piece, 39-Exit claw, 41-Spring fitting tab, 45-First guide piece, 50—connection terminal, 60—first fixing terminal, 61—horizontal portion of terminal 60, 63—connecting portion of terminal 60, 70—second fixing terminal, 80—coil spring, 200—memory card.

Detailed ways

Example

1 to 3 show an embodiment of a connector for a memory card according to the present invention, and in these figures, 1 is a connector for a memory card mounted on a printed circuit board (hereinafter simply referred to as a substrate).

The memory card connector 1 includes: an insulating housing (hereinafter simply referred to as the housing) 10, which is mounted on the housing 10 in a manner movable in the front-rear direction, and forms a card insertion groove 20 between the housing 10 and the sliding housing 10. The cover 30 , the six connection terminals 50 fixed on the housing 10 so that the contact portion faces the card insertion slot 20 , the two first fixing terminals 60 and the second fixing terminals 70 fixed on the housing 10 , a coil spring 80 that cooperates with the housing 10 and the sliding cover 30 and biases the sliding cover 30 backward.

The casing 10 is molded from an insulating synthetic resin, and as shown in FIG. boards 13, 13; and rear boards 15, 15 which are connected to the side boards 13, 13 while standing upward from both sides of the cutout 11 on the rear side of the bottom board 12.

In the middle part of the outer surface of the side plates 13, 13, there are formed guide step portions 16, 16 that guide the slide cover 30 in the front-rear direction when the slide cover 30 is mounted on the housing 10, and the guide step portions 16, 16 At the ends in the front-rear direction, stop steps 17, 17, 17, 17 are formed.

One of the side plates 13 , 13 is formed wider than the other, and the side plate 13 on the wide side is formed with a spring housing recess 18 that opens upward and accommodates the coil spring 80 .

The six connecting terminals 50, the two first fixing terminals 60, and the second fixing terminals 70 are integrally connected by punching, bending, etc. of a conductive metal plate, and are formed by insert molding when the housing 10 is molded. into the housing 10.

Connections between the respective terminals 50 to 50 , 60 , 60 , 70 , and 70 are cut by punching a predetermined position (not shown) of the housing 10 after insert molding.

The six connection terminals 50 are fixed to the housing 10 in the same manner as the conventional example shown in FIG. 6 .

The first fixing terminals 60 , 60 are fixed to the case 10 , and have horizontal portions 61 , 61 protruding substantially horizontally outward from upper portions of the outer surfaces on the front side of the side plates 13 , 13 of the case 10 , and connecting portions 62 . , 62 are connected to the horizontal portions 61, 61 and serve as connection portions 63, 63 to be solder connection portions to the substrate.

The second fixing terminals 70, 70 are fixed on the case 10, and have connecting portions 71, 71 protruding outward from the lower part of the outer surface on the rear side of the side plates 13, 13 of the case 10, and the front end side is connected to the substrate by soldering. .

The slide cover 30 is formed by punching, bending, etc. of a conductive metal plate, and as shown in FIG. The front end of the main body 32 is vertically provided with the handle 33 upwards, the first and second guide pieces 45, 45, 38, 38 are connected with the two sides of the sliding cover main body 32, and the guide pieces 45, 45 are connected with the first guide pieces. The moving claws 37, 37 and the discharge claws 39, 39 are connected to the rear end of the sliding cover body 32 and limit the sliding cover 30 to move forward.

The cutout 31 of the slide cover 30 is formed at a position substantially overlapping the cutout 11 of the case 10 when the slide cover 30 is mounted on the case 10 .

The discharge claws 39 and 39 are provided downwardly from the rear end of the slide cover main body 32 , protrude into the cutout 11 of the housing 10 when the slide cover 30 is mounted on the housing 10 , and are formed and inserted into the card insertion groove 20 . The position where the front end of the memory card 200 abuts against.

On the slide cover main body 32 of the slide cover 30 , a spring fitting tab 41 for fitting with the rear end of the coil spring 80 housed in the spring receiving recess 18 is formed by cutting and standing up.

The first guide piece 45, 45 is formed by the brake piece portion 34, 34 and the arm piece portion 36, 36, and guides the sliding movement in the front-rear direction in cooperation with the horizontal portion 61, 61 of the first fixing terminal 60, 60. cover 30, and restrict the sliding cover 30 from moving backward.

The stopper parts 34, 34 are arranged to hang downward from the front of both sides of the slide cover main body 32, and are aligned with the horizontal parts 61, 61 of the first fixing terminals 60, 60 when the slide cover 30 is mounted on the housing 10. The sliding cover 30 is abutted to limit the rearward movement of the sliding cover 30. The arm pieces 36, 36 are arranged in a cantilever plate shape extending from the front end of the brake piece 34, 34 to the rear, and form a rear side between the sliding cover main body 32. The open guide gaps 35 , 35 are fitted with the guide gaps 35 , 35 so that the horizontal portions 61 , 61 of the first fixing terminals 60 , 60 can move forward and backward.

The stop pawls 37 , 37 stand upward from the front ends of the arm pieces 36 , 36 , and abut against the horizontal portions 61 , 61 of the first fixing terminals 60 , 60 to restrict the forward movement of the slide cover 30 .

The second guide pieces 38, 38 are provided downwardly from the rear of both sides of the slide cover main body 32, cooperate with the guide steps 16, 16 of the housing 10 to guide the slide cover 30 movably in the front-rear direction, and The movement of the slide cover 30 in the front-rear direction is restricted by abutting against the stop step surfaces 17 , 17 , 17 , 17 of the guide step portions 16 , 16 .

Next, assembly of the memory card connector 1 will be described.

(1) The case 10 is formed by synthetic resin molding, and the terminal groups 50 to 50 , 60 , 60 , 70 , and 70 formed together during the molding of the case 10 are inserted and fixed in the case 10 by insert molding. , and then, by punching a predetermined position (not shown in the figure), the connecting portion between the terminals is cut off, thereby forming the terminal group 50-50, 60, 60, 70 as shown in the lower side of FIG. , 70 of the housing 10 .

(2) The sliding cover 30 shown in the upper side of FIG. 3 formed by punching, bending, etc. of a conductive metal plate is installed on the housing 10 shown in the lower side of FIG. The memory card connector 1 shown in FIG. 1 and FIG. 2 forms a card insertion slot 20 between the housings 10 .

When the slide cover 30 is attached to the case 10, first, the locking pawls 37, 37 of the slide cover 30 are located on the upper part of the front side than the first fixing terminals 60, 60 of the case 10, and the slide cover 30 The second guide piece 38,38 is positioned at the mode of the upper part of the guide step portion 16,16 of housing 10, and as shown by arrow a, the sliding cover 30 is covered on the housing 10 and the second guide piece 38,38 Cooperate with the guide steps 16, 16, then, as shown by the arrow b, move the slide cover 30 backward and fit the first fixing terminals 60, 60 of the housing 10 in the guide gaps 35, 35 of the slide cover 30 Horizontal sections 61, 61, 61.

When the slide cover 30 is attached to the housing 10 , the rear end of the coil spring 80 engages with the spring engagement tab 41 of the slide cover 30 and is accommodated in the spring receiving recess 18 of the housing 10 in a compressed state.

(3) Through the above (1) and (2), the sliding cover 30 is installed on the housing 10 to move forward and backward, and the coil spring 80 is used to energize the rear, so that it becomes a storage space as shown in FIGS. 1 and 2 . The uninserted state of the card 200 . In the initial stage when the memory card 200 is not inserted, the stopper portions 34, 34 of the first guide pieces 45, 45 abut against the horizontal portions 61, 61 of the first fixing terminals 60, 60, and the second guide pieces 38, 38 abuts against the stopper step surfaces 17, 17 to restrict the rearward movement of the slide cover 30 to a predetermined position (initial state position).

Next, the operation of the above-mentioned embodiment will be described with reference to FIG. 4 .

The memory card connector 1 is connected to the substrate by soldering the connecting portions of the connecting terminals 50 to 50, the connecting portions 63, 63 of the first fixing terminals 60, 60, and the connecting portion 71 of the second fixing terminals 70, 70. (not shown) on the connection pads on the board, and thus mounted on the substrate.

Hereinafter, the description will be divided into the time of card fitting, the time of card ejection, and the time of card removal.

(1) At the time of card fitting

When the memory card 200 is inserted into the card insertion slot 20 of the memory card connector 1 and fitted, it will be in a state as shown in FIG. 4( a ).

That is, the memory card 200 is inserted into the card insertion slot 20 of the memory card connector 1, and inserted until its front end abuts against the inner surfaces of the rear plates 15, 15 of the casing 10, thereby becoming status shown.

At this time, the front end portion of the memory card 200 is also in contact with the ejection claws 39 , 39 of the slide cover 30 .

In addition, the electrode portions of the memory card 200 elastically contact the contact portions of the connection terminals 50 to 50 and are electrically connected to the circuit on the substrate.

(2) When the card is ejected

In order to eject the memory card 200 from the card insertion slot 20, grasp the handle 33 of the slide cover 30 and pull the slide cover 30 forward to obtain the state shown in FIG. 4(b).

That is, when the slide cover 30 is pulled out forward, the memory card 200 is pulled out forward by the ejection claws 39, 39 of the slide cover 30, and the locking claws 37, 37 of the slide cover 30 are in contact with the first fixing terminals 60, The horizontal parts 61, 61 of 60 abut to restrict the forward movement, and the coil spring 80 engaged with the spring engaging protrusion 41 of the sliding cover 30 is compressed, and becomes the state shown in FIG. 4( b ).

At this time, the first guide pieces 45, 45 formed on the slide cover 30 cooperate with the horizontal portions 61, 61 of the first fixing terminals 60, 60 to guide the slide cover 30 so as to be movable in the front-back direction. When the memory card 200 pushes the slide cover 30 in the vertical direction of the connector when the memory card 200 is pulled out, the load in the peeling direction applied to the soldered portion of the connector can be eased, making it difficult to peel off the soldered portion.

Moreover, the horizontal portions 61, 61 of the first metal fixing terminals 60, 60 can be used to withstand the force applied to the slide cover 30 when the memory card 200 is ejected, so that the strength of the connector can be improved, and the resistance to stress can be improved. The strength with which the slide cover 30 falls off from the casing 10 .

Also, since the memory card 200 moves together with the slide cover 30, the upper surface of the memory card 200 does not come into sliding contact with the inner surface of the slide cover 30, so the ejection operation of the memory card 200 can be performed smoothly.

(3) When the card is taken out

When the hand is released from the handle 33 of the slide cover 30 in order to take out the memory card 200, the state shown in FIG. 4(c) is established.

That is, if the hand is separated from the handle 33 of the slide cover 30, the return force of the coil spring 80 only makes the slide cover 30 move backward and returns to the initial position, and it becomes easy to pull out the memory card 200 as shown in FIG. 4(c). status shown.

As described with the above-mentioned effects (1), (2), and (3), the ejection operation of the memory card 200 is performed by pulling out the slide cover 30 and pulling out the memory card 200 from the card insertion slot 20 and releasing it. Since the operation of pulling out the remaining memory card 200 after pulling out the slide cover 30 can be solved in two steps, the ejection operation of the memory card 200 can be easily performed.

In the above-mentioned embodiment, although the following case has been described as an example, the present invention is not limited thereto. The above case has: The first structure that the horizontal parts 61,61 of the terminals 60,60 are abutted to limit the movement of the sliding cover 30 in the forward and backward direction; Then, the second structure that restricts the movement of the sliding cover 30 in the forward and backward direction can improve the strength of the connector and improve the strength against the sliding cover 30 falling off from the housing 10 .

For example, it can also be used in a device that restricts the movement of the slide cover 30 in the front-rear direction by making the stopper pieces 34, 34 and the stopper claws 37, 37 contact the horizontal parts 61, 61 of the first fixing terminals 60, 60. Either one of the first structure and the second structure of restricting the movement of the sliding cover 30 in the front-back direction by making the second guide pieces 38, 38 abut against the stopper step surfaces 17, 17, 17, 17 and the other is omitted. The situation of the structure.

In the above-mentioned embodiment, in order to simplify the structure of the connector, the housing 10 is provided with the bottom plate 12 and the side plates 13, 13, and the guide steps 16, 16 are formed on the side plates 13, 13 and formed on one side plate 13. The spring receiving recess 18, the sliding cover 30 is equipped with a sliding cover main body 32, a handle 33 and second guide pieces 38, 38, and the second guide pieces 38, 38 are matched on the guide steps 16, 16 so that the sliding cover 30 can move forward and backward. Moving, the rear end of the coil spring 80 accommodated in the spring receiving recess 18 is engaged with the spring engagement tab 41 of the sliding cover 30 and the situation of applying force to the rear of the sliding cover 30 has been described as an example, but the present invention is not limited thereto. Here, it is also possible to use a cover including a case, a sliding cover mounted on the case and forming a card insertion groove between the case, a plurality of terminals fixed to the case, and a spring housed in the case. A coil spring that urges the slide cover rearward in cooperation with the housing and the slide cover is accommodated in the recessed portion, and is formed on the slide cover to engage with the memory card and eject the memory card forward when the slide cover is moved forward. Connector for memory card with ejection claw.

Claims (4)

1. A memory card connector, characterized in that, Comprising: a housing (10); a metal that is installed on the housing (10) in a manner that can move in the front and rear directions and forms a card insertion slot (20) with the front as an insertion port between the housing (10) and the housing (10) A sliding cover (30); a connection terminal (50-50) fixed on the casing (10) and having a contact portion that can contact the electrode portion of the memory card (200) inserted into the card insertion slot (20) ); and be accommodated in the spring receiving recess (18) formed on the housing (10), and cooperate with the housing (10) and the sliding cover (30) to apply force to the rearward coil spring of the sliding cover (30) (80), When the sliding cover (30) is moved forward, there is formed a ejection mechanism that cooperates with the memory card (200) inserted into the card insertion slot (20) to eject the memory card (200) forward. Claw (39). 2. The memory card connector according to claim 1, wherein: It is equipped with fixing terminals (60, 60) fixed on the housing (10), and the fixing terminals (60, 60) have horizontal parts ( 61, 61) and the connecting portion (63, 63) connected to the horizontal portion (61, 61) and connected to the substrate, The sliding cover (30) has: a sliding cover main body (32) covered on the housing (10); continuously arranged on both sides of the sliding cover main body (32), and connected to the horizontal part ( 61, 61) cooperate to guide the sliding cover (30) in the forward and backward direction, and limit the first guide piece (45, 45) that the sliding cover (30) moves to the rear; and continue to be arranged on the first guide piece ( 45,45) and limit the brake pawl (37,37) that slide cover (30) moves forward, The ejection claw (39) is provided so as to hang downward from the rear end of the slide cover main body (32). 3. The memory card connector according to claim 2, wherein: The first guide pieces (45, 45) are provided to hang down from both sides of the slide cover main body (32), and contact the horizontal parts (61, 61) when the slide cover (30) moves backward. The brake piece part (34, 34) that restricts the sliding cover (30) to move backward; Forming the guide gap (35, 35) opened on the rear side, and the arm piece part (36, 36) that allows the fixing terminal (60, 60) to movably fit into the guide gap (35, 35), The detent pawls (37, 37) are protruded upward from the front ends of the arm pieces (36, 36). 4. The memory card connector according to claim 1, 2 or 3, wherein: The casing (10) has a base plate (12) formed in a substantially rectangular plate shape and side plates (13, 13) erected upward from both sides of the base plate (12), and on the outer surfaces of the side plates (13, 13) A guide step portion (16, 16) along the front-to-back direction is formed on the top, a spring receiving recess (18) is formed on at least one side plate (13, 13) with the upper part as an opening along the front-to-back direction, and the sliding cover (30) It is equipped with a second guide piece (38, 38) that hangs downward from both sides of the sliding cover (30) and cooperates with the guide step portion (16, 16) in a movable manner in the front and rear direction. ) to form a spring engagement tab (41) that cooperates with the rear end of the coil spring (80) accommodated in the spring accommodation recess (18) by cutting and erecting.

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