JP2557334Y2 - Memory card connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card connector connected to a reading device, and more particularly to a memory card connector having a mechanism for mounting and removing a memory card.

[0002]

2. Description of the Related Art As a memory card connector of this type, for example, a connector disclosed in Japanese Utility Model Application Laid-Open No. 2-41378 is well known as a conventional example. The memory card loading and unloading mechanism in this conventional example includes a flat plate on which the memory card is guided, a lever for moving the plate in the fitting direction and the disengaging direction, and an ejector for driving the lever. The lever is disposed so as to perform a seesaw movement with a substantially middle portion supported by a cantilevered column attached to a frame, and is configured to move the plate in the fitting and disengaging directions by the seesaw movement. .

[0003]

In the prior art, the plate on which the memory card is guided is driven by a lever supported by a cantilever,
Since the formation of the connecting portion between the plate and the lever and the mounting position of the column are restricted, the thickness of the plate is inevitably increased, and the connecting portion between the plate and the lever requires a predetermined rotation. Because of this, the bearings must be in a state of bearing, which increases the thickness because the shaft is formed protruding, the overall thickness of the memory card loading and unloading mechanism increases, and the thickness also affects the connector configuration. However, there is a problem that it goes against a reduction in size and thickness.

In order to reduce the size and size of the memory card loading and unloading mechanism, if the support of the lever by the cantilever is stopped and a pair of projections is formed to support the lever, the lever is formed of a plate material. Therefore, especially when sudden external force is applied to the fulcrum,
There is a problem that the escape or slip phenomenon occurs and the memory card cannot be properly mounted and removed. Therefore, the conventional example has a problem to be solved in that the whole can be made thin and a memory card can be securely inserted and removed.

[0005]

As a specific means for solving the problems of the prior art, the present invention provides a connector block having a connector pin in a housing, a sliding plate for guiding a memory card, and a sliding plate. A lever member for moving the moving plate to the memory card extraction side, and a memory card connector including an operation push button for operating the lever member, wherein a long guide hole is formed in the sliding plate; A rib-like projection that engages with the guide hole is formed on the bottom plate of the housing, and a window is formed in the bottom plate so as to cross the rib-like projection. Wherein the lever member is provided by facing the window and engaging the engaging portion with the rib-shaped protrusion. A notch portion in which a joint portion is formed by a tongue piece bent downward and a claw portion cut and raised, and a claw portion of a lever member is engaged with an opposing end surface of a rib-like projection traversed by the window portion. Alternatively, a step portion is formed, or a cross-section is formed by a tapered surface from above and below.

[0006]

An engagement portion is provided at a portion serving as a fulcrum of a lever member, and this engagement portion is engaged with a rib-like projection opposed by a window portion formed on a bottom plate, and is opposed to the window portion. And a stable arrangement in which even if a sudden force is applied from the outside due to the engagement between the engaging portion and the rib-shaped projection, no escape or displacement phenomenon occurs between the two. Can be expected.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the illustrated embodiment. Reference numeral 1 denotes a housing constituting a card connector, and a card for guiding a memory card 2 to be inserted into and removed from the inside of the housing from the front side. Guide grooves 3 and 4 are formed facing each other, and a slide plate 5 for holding the memory card 2 at a predetermined position and assisting in taking out and inserting the card is slidably disposed. Connector block 7 having connector pins 6
Is attached.

As shown in FIG. 2, both sides of the sliding plate 5 are supported by plate guide grooves 8, 9 provided below the card guide grooves 3, 4, and slide in the front-rear direction. In addition to being freely arranged, the sliding and sliding stroke are driven and limited by the bottom plate 10 and the lever member 11.

That is, as shown in FIG. 4, a rectangular window hole 12 and a rectangular and long guide hole 13 are provided in parallel on a plane portion of the sliding plate 5, and a front end is provided. A hook-shaped stopper piece 14 is integrally formed so as to protrude downward at the edge, and a pair of memory card contact projections 15 and 16 are formed so as to protrude upward in a hook-like manner near both side edges at the rear edge. I have. A pair of protrusions 17 are provided on the lower surface side along one long side edge of the window hole 12, and a space between the protrusions 17 is formed as an engagement recess 18 of the lever member 11. You.

The bottom plate 10 is provided with the sliding plate 5
A rib-shaped projection 19 is formed so as to engage with the guide hole 13 and is divided into a long projection 19a and a short projection 19b by a window 20 having a predetermined size provided on the bottom plate 10. In this case, the shape of the window portion 20 has a substantially drum-like shape as a whole, and a space between the long protrusion 19a and the short protrusion 19b is formed at an interval substantially corresponding to the width of the lever member 11.

Opposing end faces of the long projection 19a and the short projection 19b are formed in an arc shape, and cutout portions 21 and 22 are formed along both sides of the upper end face of the long projection 19a along the longitudinal direction. A tapered cut-out portion 23 is formed at a lower portion. Further, a part of the upper end face of the short projection 19b is cut out to form a stepped portion 24, and the lower end face is formed with a tapered cutout portion 25 as described above.

The lever member 11 is a plate-like member having a predetermined width and is formed to a predetermined length, and a little from the center thereof toward the tip end portion 26 to abut the end surfaces of the long projections 19a and the short projections 19b. An engaging portion 27 that is in contact and engagement is formed. The engaging portion 27 is constituted by tongue pieces 28 and 29 bent downward and claw portions 30 and 31 cut and raised upward, and one claw portion 30 corresponds to the cutout portions 21 and 22. And the other claw portion 31 is formed corresponding to the step portion 24.

Further, a base 32 side of the lever member 11 is formed in a substantially circular shape, and an engagement hole 33 into which a pin of an operation push button to be described later fits and engages substantially at the center of the circular base. Are formed.

The operation push button 34 is housed in a bulging portion 1a formed on one side surface of the housing 1, and is mounted so as to be operated from the front side. The configuration of the operation push button 34 is such that the lever member 1
A concave portion 35 in which one base portion 32 is stored is provided, and a pin 36 is protruded from a central portion of the concave portion so as to be fitted and engaged with the engaging hole 33.

A step 37 is formed on the upper surface of the operation push button 34, a stopper projection 38 is formed on the upper step, and a sense of click between the start and end of the push button operation, that is, a click feeling, is formed on the lower step. Rib-shaped protrusions 39 are formed to cause the above.

A window 40 is formed on the upper surface of the bulging portion 1a on which the operation push button 34 is mounted, and a stopper projection 38 comes into contact with the front end of the window 40 so as not to come off. , An arch-shaped spring frame 41 on the rear end side of the window 40
Is disposed, and the end surface 41a of the spring frame 41 is
By passing through the projections 39, a click feeling at the start end and the end is obtained.

Thus, the lever member 11 and the operation push button 34 are
By disposing the lever member 11, the distal end side of the lever member 11 is engaged with the engagement concave portion 18 of the slide plate 5, and the engagement portion 27 is formed at the intermediate portion with the long projection 19 a and the short projection 19 b of the bottom plate 10.
The push button 3 for operation is engaged with the base side through the engagement hole 33.
The engaging portion 27 serves as a fulcrum of the lever movement of the lever member 11, as shown in FIG.

As a configuration of a fulcrum in the lever motion,
FIG. 7 shows a second embodiment. In the second embodiment, opposing ends of the long projections 19a and the short projections 19b in the rib-like projections 19 formed on the bottom plate 10 are sectioned by tapered surfaces 42, 43, 44, and 45 from above and below, respectively. It may be formed in a cone shape, and the tongue pieces 28 and 29 and the claw portions 30 and 31 of the engaging portion 27 in the lever member 11 may be formed correspondingly. In short, the lever member 11 is configured not to escape or shift in the vertical direction at the fulcrum portion of the engaging portion 27 even if a force is applied from any direction during the lever motion.

In the memory card connector thus configured, the memory card 2 is inserted from the front side opening along the card guide grooves 3 and 4, and the inserted end of the memory card 2 is connected to the projection 15 of the sliding plate 5. , 16 and the memory card 2 is further pushed in, the sliding plate 5
Is retracted, and accordingly, the distal end side 26 of the lever member 11 is pushed rearward with the engaging portion 27 as a fulcrum, while the base side 32 rotates with the engaging portion 27 as a fulcrum and swings out to the front side. The operation push button 34 projects to the front.

In this case, when the operation push button 34 moves to the front side, the projection 39 moves beyond the end face 41a of the spring frame 41, and when the memory card 2 is inserted to a predetermined position, the projection 39 moves. After passing through the end face 41a, a click feeling at the end can be obtained, and the insertion operation is stopped.

When removing the memory card 2,
When the operation push button 34 is pushed, the base side 32 of the lever member 11 is pushed in, and the tip portion 26 swings forward with the engaging portion 27 as a fulcrum, and slides accordingly. The plate 5 is pulled out to the front side so that the memory card 2 can be taken out, and the projection 39 of the operation push button 34 is moved in the opposite direction to the end face 4 of the spring frame 41.
After moving past 1a, the click feeling at the start end is obtained after passing.

In the operation of inserting and removing the memory card 2, a rotational motion about the engaging portion 27 as a fulcrum is given to the lever member 11.
The engaging portion 27 is provided with a rib-like projection 19 formed on the bottom plate 10.
The rotational movement can be performed smoothly without hindrance only by making contact with the long projection 19a and the short projection 19b facing each other, and the engaging portion 27 is formed by the tongue pieces 28 and 29 and the claw portions 30 and 3.
1, the contact between the long projection 19a and the short projection 19b is stabilized, and even if a pressing force is applied in any direction of the rotation direction of the lever member 11, the engagement portion 27 is formed. Does not escape or slip away.

Therefore, it is not necessary to fix the lever member 11 via a pin or the like at a position avoiding the rib-like projections 19 for guiding the sliding plate 5, and merely the window 2 provided on the bottom plate 10.
Since it is only disposed at 0, the entire memory card connector can be made thinner by that much, and the configuration is simplified.

[0024]

As described above, the memory card connector according to the present invention has a connector block provided with connector pins, a sliding plate for guiding the memory card, and a sliding plate for the memory card. What is claimed is: 1. A memory card connector comprising: a lever member for moving to a removal side; and an operation push button for operating the lever member, wherein a long guide hole is formed in the sliding plate and engaged with the guide hole. Forming a rib on the bottom plate of the housing so as to project from the bottom plate of the housing, forming a window on the bottom plate so as to cross over the rib, and forming an engaging portion at a substantially intermediate portion of the lever member; With the configuration in which the lever member is arranged by facing the portion and engaging the engaging portion with the rib-shaped protrusion, even without using a cantilever support such as a pin,
Since the lever member can be disposed in a stable state, and since the lever member is disposed facing the window, an excellent effect that the lever member can be formed thinner by that amount can be obtained.

The engaging portion of the lever member is constituted by a tongue piece bent downward and a claw portion which is cut and raised, and an opposing end face of a rib-like projection traversed by the window portion is provided with a lever. By forming a notch or step where the claw portion of the member engages, or by forming a cone-shaped cross section with a tapered surface from above and below, a strong external force is applied to a portion that becomes a fulcrum in the operation of the lever member In addition, there is no escape or slip phenomenon caused by a dive downward or an upward jump, and an excellent effect that the memory card can be always inserted and removed in a proper state.

[Brief description of the drawings]

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

FIG. 2 is a schematic enlarged sectional view taken along line AA of FIG.

FIG. 3 is a schematic enlarged sectional view taken along the line BB of FIG. 1;

FIG. 4 is a schematic perspective view showing main components of the memory card connector according to the present invention separately.

FIG. 5 is a schematic enlarged sectional view taken along line CC of FIG. 1;

FIG. 6 is an enlarged cross-sectional view of a main part showing an arrangement state of a lever member which is a main component of the memory card connector according to the present invention.

FIG. 7 is an enlarged cross-sectional view of the second embodiment showing a state of disposing a lever member similar to that of FIG. 6;

[Description of Signs] 1 Housing 2 Memory card 3, 4 Guide groove for card 5 Sliding plate 6 Connector pin 7 Connector block 7 8, 9 Guide groove for plate 10 Bottom plate 10 11 Lever member 12 Window hole 13 Long guide Hole 14 Stopper piece 15, 16 Memory card contact projection 17 A pair of projections 18 Engagement recess 19 Rib-shaped projection 19a Long projection 19b Short projection 20 Window 21, 22 Notch 23 25 Tapered cut-out 24 Step portion 26 Tip portion 27 Engagement portion 28, 29 Tongue piece 30, 31 Claw portion 32 Base 33 Engagement hole 34 Operation push button 35 Depression 36 Pin 37 Step portion 38 Projection for stopper 39 Rib-shaped protrusion 40 Window 41 Spring frame 41a End face of spring frame

Claims (4)

(57) [Scope of request for utility model registration] 1. A connector block having a connector pin in a housing, a sliding plate for guiding a memory card, a lever member for moving the sliding plate to a side from which the memory card is removed, and operating the lever member. A memory card connector having an operation push button for
While forming a long guide hole in the sliding plate,
A rib-like projection that engages with the guide hole is formed on the bottom plate of the housing, and a window is formed in the bottom plate so as to cross the rib-like projection. Wherein the lever member is disposed so as to face the window and engage the engaging portion with the rib-shaped projection. 2. The memory card connector according to claim 1, wherein the engaging portion comprises a tongue bent downward and a claw cut and raised. 3. The memory card connector according to claim 1, wherein a notch or a step is formed on an opposite end face of the rib-like projection crossed by the window to engage with a claw of the lever member. 4. The memory card connector according to claim 1, wherein opposing end faces of the rib-like projections crossed by the window are formed in a cone shape in cross section with tapered surfaces from above and below.