JP2001291552A - Connector for memory card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To aim at a reduction of assembly man-hour, cost reduction and downsizing in a connector for a memory card which possesses a heart cam lock mechanism. SOLUTION: This connector is equipped with a housing 50, a frame 52, a slider 51, a coil sprig 92 and a lock pin 53, and the slider 51 is driven to the front side (right side in the figure) by a coil spring 92, and a base end part 53b of a lock pin 53 is swingably supported in a support groove 66 of the housing 50, and engaged and locked in an engaging groove 75 of the slider 51, to prevent falling off, and by being abutted on and supported by a side plate 83 of the frame 52, the tip end part 53 is abutted on an inner bottom surface of heart-shaped grooved cam 77 that has been concavely installed at the slider 51. On this account, a leaf spring piece to drive the tip end part 53a of the lock pin 53 to the heart-shaped grooved cam 77 side becomes unnecessary, and the number of parts can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for a memory card electrically connected to a memory card such as an IC card, and more particularly, to a connector for a memory card provided with a mechanism for removing an inserted memory card. is there.

[0002]

2. Description of the Related Art Conventionally, this type of memory card connector has an IC inserted into a card receiving recess of a housing.
There is known an IC card connector (for example, Japanese Utility Model Laid-Open No. 2-41378) for ejecting a card by pushing an eject lever. In this IC card connector, the rear end of the eject lever protrudes from the housing in a state of waiting for the insertion of the IC card, so that the appearance of the electronic device to which the IC card connector is attached is impaired, or a hand or other There is a problem in that foreign matter accidentally collides and causes injury or breakage of the eject lever.

In order to solve such a problem, the present applicant has already proposed an IC card connector 1 (Japanese Patent Laid-Open No. Hei 10-255905) as shown in FIGS. This IC card connector 1 comprises a housing 2, a slider 3
And a stopper 4. The housing 2 has side walls 22, 22 erected integrally on both sides of a plate-shaped housing body 21 to form a U-shaped cross-section as a whole and a slider accommodating recess 23 formed inside. , Guide groove 22a of side wall 22, 22
The guide ridge 3a of the slider 3 is engaged with the
Are movably accommodated in the front-rear direction (IC card insertion direction).

The rear ends of the side walls 22 and 22 are formed with thick spring receiving portions 2.
The rear ends of the coil springs 5 and 5 abut against the rear ends of the coil springs 5 and 5, and the front ends of the coil springs 5 and 5 are compressed and accommodated in spring receiving holes (not shown) of the slider 3 to urge the slider 3 forward. The slider 3 is brought into contact with a pair of stoppers 4 and 4 screwed to the front end of the housing 2 to prevent the slider 3 from coming off. Nut receiving recesses 41 of stoppers 4 and 4;
The stoppers 4, 4 are screwed into the nuts 42, 42, which are non-rotatably supported by the housing 41, and tightening screws 43, 43 inserted into the upper and lower surfaces of the housing body 21 and the nut housing recesses 41, 41, so that the stoppers 4, 4 23 is fixed to both sides of the front end. IC card 10 on one side of stopper 4
A guide frame portion 44 for guiding insertion of the IC is formed, and an IC is provided between the guide frame portions 44, 44 between the pair of left and right stoppers 4, 4.
By inserting the card 10, the IC card 10 is guided into an IC card receiving recess (not shown) of the slider 3.

A lock pin storage chamber 25 is recessed in one side wall 22 of the housing 2, and a horizontally long U-shaped lock pin 15 is stored in the lock pin storage chamber 25.
The base end 15b is loosely inserted into the support hole 26 in the lock pin storage chamber 25 by the leaf spring piece 16 elastically mounted between the connection portion 15a of the lock pin storage chamber 25 and the distal end 15c. Is urged through the window hole 27 so as to contact the inner bottom surface of the heart-shaped cam groove 34 formed in the side surface of the slider 3. The inner bottom surface (e to j surface) of the heart-shaped cam groove 34 is
As shown in FIG. 11 (b), the tip 15c of the lock pin 15 which is continuous with the stair surface and the gentle inclined surface and moves along each surface always moves around the lock projection 17 in FIG. 11 (a) counterclockwise. Move around. That is, the distal end portion 15c of the lock pin 15 can move by contacting the e-plane from the e-plane via the f-, g-, h-, i-, and j-planes. It is regulated by respective steps between the g-plane, the g-plane and the h-plane, the h-plane and the i-plane, and the j-plane and the e-plane.

When waiting for insertion of the IC card 10, as shown in FIG. 12A, the slider 3 is urged by the coil springs 5, 5 and stopped at the standby position where it comes into contact with the stoppers 4, 4. are doing. At this time, the lock pin 15
Abuts on the rear surface e of the heart-shaped cam groove 34, and is at an unlocked position where it is not locked with the heart-shaped cam groove 34. When the IC card 10 is inserted and the slider 3 is pushed into the slider accommodating recess, the distal end 15 c of the lock pin 15 relatively moves forward of the heart-shaped cam groove 34. Then, when the slider 3 is pushed until it comes into contact with the spring receiving portion 24 of the housing 2, the distal end portion 15 c of the lock pin 15 is moved into the heart-shaped cam groove 3 as shown in FIG.
4 is guided from the e-plane to the f-plane, falls into the g-plane, and comes into contact with the g-plane. Since the insertion of the IC card 10 up to the connection position can be detected by the contact between the slider 3 and the spring receiving portion 24, the insertion force applied to the IC card 10 is released.

When the insertion force is released, the slider 3 is urged by the coil springs 5, 5 and attempts to return to the front, but the distal end 1 of the lock pin 15 in contact with the g surface.
5c is guided by this step without returning to the f-plane by the step at the boundary with the f-plane, and falls into the h-plane. At this time, when the entire lock pin 15 is urged forward, the distal end 15c of the lock pin 15 is locked to the lock projection 17 surrounded by the heart-shaped cam groove 34, and stops at this locked position.
This locking of the lock pin 15 restricts the forward return movement of the slider 3 and stops at the connection position shown in FIG. In this connection position, all contacts 11a
11a and 11b to 11b are in contact with the terminal fittings of the corresponding IC card 10 to be electrically connected.

When the IC card 10 is to be removed, the IC card 10 is slightly pushed again and the slider 3 is
It is retracted from the position shown in (c) to the position shown in FIG. By this retreating movement, the distal end portion 15c of the lock pin 15 moves from the h surface of the heart-shaped cam groove 34 to the i surface. Here, when the insertion force into the IC card 10 is released,
The slider 3 is urged by the coil springs 5 and 5 to move forward, and the tip 15c of the lock pin 15 is guided by the step with the h surface of the heart-shaped cam groove 34 and moves to the j surface to move the j surface. Slowly ascends, then falls to the e-plane, and the slider 3
Returns to the standby position where it contacts the stopper 4 and returns to the initial state. For this reason, the connection state with the contacts 11a to 11a and 11b to 11b is maintained only by applying or releasing the insertion force to the IC card 10 without using the eject lever as in the conventional example. Can be extracted.

[0009]

However, in the proposal examples shown in FIGS. 8 to 12, the distal end 1 of the lock pin 15 is not provided.
Since the leaf spring piece 16 is required to make the 5c abut on the inner bottom surface (e to j surfaces) of the heart-shaped cam groove 34, there is a problem that the number of parts increases.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. A heart-shaped cam groove is formed on the side surface of a slider, and the tip of a lock pin is elastically provided on the inner bottom surface of the heart-shaped cam groove. It is an object of the present invention to reduce the number of required components, reduce the number of assembly steps, reduce costs and reduce the size of a connector for a memory card that performs locking and unlocking by making contact.

[0011]

SUMMARY OF THE INVENTION A connector for a memory card according to the present invention comprises a housing provided with contacts for electrical connection with terminal fittings of a memory card, and a card receiving recess mounted between the housing and the housing. And a frame forming a slider housing recess,
A slider which is loosely fitted in the slider accommodating recess and is movable in the card insertion direction, an urging means for urging the slider in a direction protruding from the slider accommodating concave, and a slider energized by the urging means. A stopper for preventing the slider from dropping out of the slider accommodating concave portion, and a base end portion pivotally supported by the housing and a connecting portion abutting on the frame so that the distal end portion is recessed by the slider. A lock pin which comes into contact with the inner bottom surface of the provided heart-shaped groove cam, and each time a memory card is inserted into the card-receiving recess and the slider is pushed into the slider-receiving recess, the tip of the lock pin is brought into contact with the heart-shaped groove cam. It is moved alternately to the locking position and the unlocking position, the locking position is the position where the contacts are electrically connected to the terminal fittings of the memory card, and the slider is dropped at the unlocking position Characterized in that the contact with stands positioned stop means.

In such a configuration, in a state of waiting for insertion of the memory card, the slider is urged by the urging means and is prevented from falling off by the fall-off prevention means, and stops at the standby position, and stops at the standby position. The tip is in the unlocked position of the heart-shaped groove cam. At this time, the lock pin has its base end swingably supported by the housing, its connection portion abutted on the frame and supported, and its tip end abuts the inner bottom surface of the heart-shaped groove cam of the slider. This eliminates the need for a leaf spring piece for urging the lock pin as in the proposed example, thereby reducing the number of components.

In order to smoothly move the slider that moves when the memory card is inserted, a lock spring is attached to the slider, and the inserted memory card is simply locked by the lock spring.

In order to simplify the structure of the dropout prevention means,
An engagement groove for movably engaging the base end of the lock pin is formed on the same surface as the heart-shaped groove cam of the slider, and the base end of the lock pin is locked on the inner wall surface of the engagement groove. Means for preventing falling off.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a memory card connector according to the present invention. FIG. 1 is an exploded perspective view, FIG. 2 is a plan view partially cut away, and in these figures, 50 is a housing formed of synthetic resin, 51 is a slider formed of synthetic resin,
Reference numeral 52 denotes a frame formed by punching and bending a thin metal plate, 53 denotes a lock pin formed by bending a thin metal rod into a horizontally long U shape, and 92 denotes a coil spring. By attaching the frame 52 to the housing 50, a card accommodating concave portion 54 and a slider accommodating concave portion 55 which are opened on the front side (the right side in FIGS. 1 and 2) are formed, and the memory card 56 is engaged with the card accommodating concave portion 54. The slider 51 is detachably inserted, and the slider 51 is movably mounted in the slider receiving recess 55 within a predetermined range.
The details will be described below.

As shown in FIGS. 3A to 3E, the housing 50 has a substantially rectangular plate-like housing body 5.
7, and side walls 58 and 59 and a rear wall 60 erected integrally on both sides and a rear side of the housing body 57. A guide groove 6 having a wide and shallow groove shape along the side wall 58 is provided on the inner wall surface of the housing body 57 on the side wall 58 side.
1 is formed. The rear wall 60 includes a thick contact mounting portion 60a and a normal thick coil mounting portion 60b. The contact mounting portion 60a has a plurality of contact receiving holes 62 to 62 formed therein.
Contacts 63 to 63 are press-fitted and locked to 2 to 62, and a coil engaging projection 64 protruding inward is formed on the coil mounting portion 60b.

In the side wall 58, a narrow support groove 65 and a wide support groove 66 for swingably supporting the distal end portion 53a and the proximal end portion 53b of the lock pin 53 are formed. A support protrusion 67 is formed to protrude outward from the support groove 65 to the support groove 66 and to support the connecting portion 53c of the lock pin 53. The side walls 58 are formed with engaging projections 68a, 68b protruding outward. The side wall 59 has engaging projections 69a to 69c and 7
0a and 70b are formed.

As shown in FIGS. 4A to 4E, the slider 51 includes a horizontally long plate-shaped slider body 72,
The slider body 72 includes a protruding body 73 that is integrally connected to the rear side surface. A guide projection 74 that engages with the guide groove 61 of the housing 50 is integrally formed on a lower outer wall surface of the slider body 72, and a front side and a left side (FIG. 4A) Opening grooves 75 are formed on the right and lower sides), and a lock spring 76 is press-fitted and locked at an intermediate portion of the slider main body 72, and a part of the movable-side tip of the lock spring 76 becomes a protruding portion 76a. And protrudes toward the card receiving recess 54 side.

At the rear portion of the slider body 72, a heart-shaped cam groove 77 is formed which is open on the rear side and the left side (the left side and the lower side in FIG. 4A). A card receiving portion 78 is formed on the front side of the protrusion 73, and a coil receiving recess 79 is formed on the rear side. The card receiving portion 78 includes a card guide portion 78a and a card contact portion 78b. The portion 78a is formed in a horizontal plate shape, and the card contact portion 78b
Is formed in substantially the same shape as the shape of the portion corresponding to the front edge of the memory card 56.

The heart-shaped cam groove 77 is shown in FIG.
It is configured as shown in FIG. As shown in FIG. 5B, the heart-shaped cam groove 77 has an inner bottom surface (e-j surface) continuous with a step surface and a gentle slope, and a tip of a lock pin 53 that moves along each surface. The portion 53c always moves counterclockwise around the lock projection 80 in FIG. That is, the tip 53 of the lock pin 53
c is e from the e plane via the f, g, h, i, and j planes.
It is possible to move in contact with the surface, but the movement in the opposite direction is regulated by respective steps between the f and g surfaces, the g and h surfaces, the h and i surfaces, and the j and e surfaces. I have.

As shown in FIGS. 6 (a) to 6 (e), the frame 52 has a frame body 81 in which a front side of a rectangular plate (the right side in FIG. 6 (a)) is cut out, A plurality of side plates 82 and 8 bent downward from the left edge (lower side in FIG. 6A) of 81.
3, 84, a side plate 85 bent downward from the right edge (upper side in FIG. 6A) of the frame main body 81, and outward from the tip edges of the side plates 82, 84, 85. It is composed of bent connection pieces 86 to 86.

The side plates 82, 83, 84 are formed so as to be separated from the front side to the rear side of the frame main body 81, and the intermediate side plate 83 is substantially the same thickness as the lock pin 53. 84, and is formed outside the side plates 82, 83 and between the side plates 83,
Notches 87 and 88 are formed between the side plates 8 and 84.
The gap formed between the inside of the housing 3 and the side wall 58 of the housing 50 and the cutouts 87 and 88 engage with the support protrusion 67 of the housing 50. The side plates 82 and 84 are formed with engagement holes 89a and 89b for engaging with the engagement protrusions 68a and 68b of the housing 50. The side plate 85 is formed with engagement protrusions 69a to 69c of the housing 50. The engaging holes 90a to 90c to be engaged with the notches 91a, 9 to be engaged with the engaging protrusions 70a, 70b of the housing 50.
1b are formed.

Next, the assembly of the embodiment will be described. First, the contact receiving hole 6 of the housing 50 is formed.
The contacts 63 to 63 are press-fitted and locked to 2 to 62. Next, the front side of the coil spring 92 is inserted into the coil accommodating recess 79 of the slider 51 into which the lock spring 76 is press-fitted and locked.
The guide protrusion 74 of the slider 51 is engaged with the guide groove 61 of the housing 50 while engaging with the coil engagement protrusion of the housing 50, and the slider 51 is moved to the rear side of the housing 50 against the elastic force of the coil spring 92. When the lock pin 53 moves to the predetermined position (standby position), the distal end 53a and the proximal end 53b of the lock pin 53 are connected to the heart-shaped groove cam 77 and the engagement groove 75 of the slider 51 via the support grooves 65 and 66 of the housing 50. Engage.

Next, the frame 52 is put on the housing 50 from above, and the cutouts 87, 88 and the cutouts 91a, 91b of the frame 52 are engaged with the corresponding support projections 67 and engagement projections 70a, 70b of the housing 50. The engagement holes 89a, 89b, 9 of the frame 52 are aligned and aligned.
0a to 90c are engaged with the engaging projections 68a, 68 of the housing 50.
b, the frame 52 is mounted and fixed to the housing 50 by engaging and locking with 69a to 69c. By this mounting and fixing, the slider 51 is moved to the slider accommodation recess 55.
And is movably fitted in the card insertion direction, and is urged by the coil spring 92 in a direction to protrude from the slider accommodating recess 55, so that the lock pin 53
The base end 53b of the slider 51 abuts on and is locked by the inner wall surface 75a on the rear side of the engagement groove 75 of the slider 51, thereby preventing the slider 51 from dropping out of the slider housing recess 55. Further, by contacting the inner surface of the side plate 83 of the frame 52 with the connecting portion 53 c of the lock pin 53, the base end 53 b of the lock pin 53 is
And the distal end portion 53a of the lock pin 53 elastically contacts the inner bottom surface of the heart-shaped cam groove 77 of the slider 51 via the support groove 65 of the housing 50.

Next, the operation of the above embodiment will be described with reference to FIGS. (1) When waiting for insertion of the memory card 56, the slider 51 is moved forward by the coil spring 92 (in the direction protruding from the slider accommodating recess 55, as shown in FIG. ) And the engagement groove 7
5 is stopped at a position where the inner wall surface 75a is in contact with the base end portion 53b of the lock pin 53 (that is, a standby position). At this time, the distal end portion 53a of the lock pin 53 comes into contact with the e-face of the heart-shaped cam groove 77, and is in an unlocked position where it is not locked with the heart-shaped cam groove 77.

(2) As shown by a dashed line arrow in FIG.
The memory card 56 is inserted into the card accommodating recess 54, and the leading end of the memory card 56 is brought into contact with the card receiving portion 78 of the slider 51, and the slider 51 is pushed into the slider accommodating recess 55 as shown by a solid arrow in FIG. When you go out,
The distal end portion 53a of the lock pin 53 relatively moves toward the front side (the right side in FIGS. 2 and 7) of the heart-shaped cam groove 77. When the leading end of the memory card 56 is brought into contact with the card receiving portion 78 of the slider 51, the protrusion 76a of the lock spring 76 press-fitted and locked to the slider 51 comes into contact with the memory card 56 and is elastically deformed. Then, the memory card 56 is simply locked at a predetermined position in the card accommodating recess 54 by the elastic force. Therefore, the movement of the slider 51 that moves when the memory card 56 is inserted can be made smooth. Then, the slider 51 is moved to the rear wall 60 of the housing 50.
When the memory card 56 is pushed in until it abuts against the inner wall surface of the heart-shaped cam groove 77, the tip 53a of the lock pin 53 is guided from the e-plane to the f-plane and falls into the g-plane as shown in FIG. 7B. Contact the g surface. The insertion of the memory card 56 up to the connection position can be detected by the contact between the slider 51 and the inner wall surface of the rear wall 60, so that the insertion force applied to the memory card 56 is released.

(3) When the insertion force into the memory card 56 is released, the slider 51 is urged by the coil spring 92 to return to the front (to the right in FIG. 7). Tip portion 53 of lock pin 53 in contact
a is guided by this step without returning to the f-plane by the step at the boundary with the f-plane, and falls into the h-plane. At this time, since the slider 51 is urged forward by the coil spring 92, the tip 53 a of the lock pin 53 is
It is locked on the lock projection 80 surrounded by 7 and stops at this locked position. The locking movement of the lock pin 53 restricts the return movement of the slider 51 to the front side, and stops at the connection position shown in FIG. In this connection position, all the contacts 63 to 63 come into contact with the corresponding terminal fittings of the memory card 56 to be electrically connected.

(4) When removing the memory card 56, the memory card 56 is slightly pushed in again, and the slider 51 is moved from the position shown in FIG. 7C to the position shown in FIG. This movement causes the lock pin 53
Of the heart-shaped cam groove 77 moves from the h-plane to the i-plane. Here, when the insertion force into the memory card 56 is released, the slider 51 is urged by the coil spring 92 to move forward, and the leading end 53 a of the lock pin 53 is stepped with the h-shaped surface of the heart-shaped cam groove 77. Is moved to the j-plane and gradually rises up the j-plane, and then falls into the e-plane. Then, when the base end 53b of the lock pin 53 returns to the standby position where it abuts against the inner wall surface 75a of the engagement groove 75 of the slider 51, it returns to the initial state. Therefore, the connection state between the terminal fittings of the memory card 56 and the contacts 63 to 63 is maintained only by applying or releasing the insertion force to the memory card 56 without using the eject lever as in the conventional example,
In addition, the memory card 56 can be removed from the connection state, and the number of components can be reduced by eliminating the need for the leaf spring pieces 16 required in the examples already proposed in FIGS. Further, the lock pin storage chamber 25 required in the already proposed example can be omitted.

In the above-described embodiment, a case will be described in which a guide groove is formed on the housing side, and a guide projection that engages with the guide groove is formed on the slider side, so that the slider can be moved within the slider housing recess. However, the present invention is not limited to this. By forming a guide groove on the slider side and forming a guide projection engaging with the guide groove on the housing side, the slider can be moved in the slider receiving recess. It can also be used if you do.

In the above embodiment, in order to reduce the size of the slider, a card receiving recess and a slider receiving recess are formed in parallel between the housing and the frame, and project toward the card receiving recess behind the slider. Although the card receiving portion is formed and a part of the front edge of the memory card is brought into contact with the card receiving portion, the present invention is not limited to this. Instead of the slider 51 illustrated in the embodiment, the present invention is not limited thereto. ,
The present invention can also be applied to a case where a slider similar to the slider 3 of the already proposed example shown in FIGS. 8 to 12 is provided. That is, a heart-shaped cam groove is formed in the same slider as the slider 3 of the already proposed example for abutting the leading end of the lock pin with the card accommodating recess for inserting the memory card, and the slider can be freely moved between the housing and the frame. The present invention can also be applied to a case where a slider housing chamber is formed for loose fitting.

In the above embodiment, in order to further reduce the number of required components, an engagement groove is formed in the slider, and the base end of the lock pin is brought into contact with the inner wall surface of the engagement groove. Although the description has been given of the case where the slider urged forward by the coil spring is prevented from falling off from the front side, the present invention is not limited to this.
A stopper similar to the stopper 4 of the proposed example shown in FIG. 12 to FIG. 12 is provided, and the stopper can be used to prevent the slider from falling off from the front side.

In the above-described embodiment, a lock spring is press-fitted into the slider to smoothly move the slider which is moved by inserting the memory card, and the memory card inserted into the card accommodating recess by this lock spring is simplified. Although the configuration in which the locking is performed is described above, the present invention is not limited to this, and can be used even when the lock spring is omitted.

[0033]

The connector for a memory card according to the present invention comprises a housing, a frame, a slider, a biasing means, a falling-off preventing means, and a lock pin, and a base end of the lock pin is swingably supported by the housing. The connecting portion of the lock pin is supported by contacting the frame, and the tip of the lock pin is configured to contact the inner bottom surface of the heart-shaped groove cam recessed in the slider. A leaf spring piece for urging is not required, and the number of parts can be reduced. Therefore, the number of assembling steps and the cost can be reduced. In addition, since the plate spring piece for urging the lock pin is not required, a portion protruding from the side surface of the housing (for example, the lock pin storage chamber 25 of the already proposed example) can be eliminated, and the size can be reduced.

When a lock spring is attached to the slider and the memory card inserted by the lock spring is simply locked, the movement of the slider that is moved by inserting the memory card can be made smooth.

An engagement groove for movably engaging the base end of the lock pin is formed on the same surface as the heart-shaped groove cam of the slider, and the base end of the lock pin is engaged with the inner wall surface of the engagement groove. In the case where the stopper is used as the stopper means, the structure of the stopper means can be simplified.

[Brief description of the drawings]

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

FIG. 2 is a plan view of the memory card connector according to the present invention, with a portion cut away.

FIG. 3 is a view showing a housing 50 in FIGS. 1 and 2;
(A) is a plan view, (b) is a front view, (c) is A in (a).
-A line sectional view, (d) is a BB line sectional view of (a),
(E) is an enlarged sectional view taken along line CC of (a).

FIG. 4 is a view showing a slider 51 in FIGS. 1 and 2;
(A) is a plan view, (b) is a front view, (c) is a bottom view,
(D) is a sectional view taken along the line AA of (b), and (e) is a right side view of (b).

FIG. 5 shows a heart-shaped cam groove 77 of the slider 51;
(A) is a front view of a main part of the slider 51 including the heart-shaped cam groove 77, and (b) is a cross-sectional view of the inner bottom surface of the heart-shaped cam groove 77 along the movement locus of the tip 53a of the lock pin 53.

FIG. 6 is a view showing a frame 52 in FIGS. 1 and 2;
(A) is a plan view, (b) is a front view, (c) is A in (a).
-A line sectional view, (d) is a BB line sectional view of (a),
(E) is an enlarged sectional view taken along line CC of (a).

FIG. 7 shows a relationship between a slider 51 and a housing 50;
(A) when the slider 51 is at the standby position, (b) when the slider 51 contacts the rear wall 60 (60a) of the housing 50, (c) when the slider 51 is at the connection position, (d) The slider 51 is pushed slightly rearward from the position (c) to move the slider 51 to the rear wall 60 (60) of the housing 50.
It is each sectional drawing at the time of contacting a).

FIG. 8 is an exploded perspective view showing an example already proposed by the present applicant.

FIG. 9 is a plan view showing an example already proposed by the present applicant.

FIG. 10 is a partial perspective view of the heart cam lock mechanism shown in FIGS. 8 and 9 with a partial cross section.

FIGS. 11A and 11B show a heart-shaped cam groove in FIGS. 8 to 10, wherein FIG.
(B) is a cross-sectional view of the inner bottom surface of the heart-shaped cam groove 34 along the movement locus of the distal end portion 15c of the lock pin 15.

12A and 12B show the relationship between the slider 3 and the housing 2 in FIGS. 8 to 10, wherein FIG. 12A shows the slider 3 at a standby position, and FIG. (C) is when the slider 3 is at the connection position, (d) is when the slider 3 is pushed slightly rearward from the position (c) and contacts the spring receiving portion 24 of the housing 3 It is each sectional drawing of.

[Explanation of symbols]

Reference numeral 50: housing, 51: slider, 52: frame, 53: lock pin, 53a: distal end of the lock pin 53, 53b: base end of the lock pin 53, 53c ...
A connecting portion of the lock pin 53, 54 ... a card receiving recess,
55: recess for accommodating the slider, 56: memory card,
63 ... contact, 64 ... coil engagement protrusion, 75 ...
Engaging groove, 75a: inner wall surface of engaging groove 75, 77: heart-shaped cam groove, 76: lock spring, 76a: projecting portion of lock spring 76, 78: card receiving portion of slider 51, 79: coil receiving concave portion, 80: Lock projection,
83: Side plate of frame 52 (connection portion 5 of lock pin 53)
3c), 92: coil spring.

 ──────────────────────────────────────────────────続 き Continued on front page F-term (reference) 2C005 MA16 MA18 MA19 MA40 NA05 TA07 TA21 TA24 5B058 CA13 5E021 FA05 FA11 FB18 FC32 FC36 HA07 HC12 HC36 HC37 5E023 AA04 AA16 AA18 AA21 BB19 CC23 DD18 DD19 EE10 GG02 HGG09GG

Claims (3)

[Claims] 1. A housing to which a contact for electrically connecting to a terminal fitting of a memory card is attached, a frame attached to the housing to form a card receiving recess and a slider receiving recess between the housing, and a slider receiving recess. A slider that is loosely fitted to and can move in the card insertion direction, a biasing unit that biases the slider in a direction to protrude from the slider housing recess, and a slider that contacts the slider biased by the biasing unit. A stopper is provided to prevent the slider from dropping out of the slider housing recess, and the base is pivotally supported by the housing, and the coupling is abutted against the frame to be supported. A lock pin that contacts the inner bottom surface of the heart-shaped grooved cam,
Each time a memory card is inserted into the card receiving recess and the slider is pushed into the slider receiving recess, the tip of the lock pin is alternately moved to the locking position and unlocking position of the heart-shaped groove cam, and the locking position is contacted. A connector for electrically connecting with a terminal fitting of the memory card, and an unlocking position is a position where the slider comes into contact with the falling-off preventing means and waits. 2. The memory card connector according to claim 1, wherein a lock spring is attached to the slider, and the inserted memory card is simply locked by the lock spring. 3. An engagement groove for movably engaging a base end of a lock pin is formed on the same surface as the heart-shaped groove cam of the slider, and a base end of the lock pin is formed on an inner wall surface of the engagement groove. 3. The connector for a memory card according to claim 1, wherein the connector is locked to prevent falling off.