JPH0637947U - Ejection mechanism in IC memory card insertion holding device - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] Involved in the eject mechanism of the IC memory card insertion / holding device, the operability of the eject lever by the operation lever is increased by increasing the load ratio of the eject lever moved by the operation lever. It is an object of the present invention, of course, to make the outer shape of the IC memory card insertion holding device smaller. [Structure] The operation lever 7 is arranged on one side with the center 21 of the IC memory card in the middle, and the eject lever 8 is arranged in a region from one side to the other side. The swing fulcrum of the eject lever 8 which is disposed on the other side of the center 21 of the memory card and which is composed of the cam 22 of the eject lever 8 and the cam receiving surface 23 on the main body side is the same as the center 21 of the IC memory card. It exists in the other side area between the tip pressing portions of the lever 8.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an eject mechanism in an IC memory card insertion holding device.

[0002]

[Prior art]

 As is well known, an IC memory card insertion holding device is in practical use. In this case, an eject mechanism is equipped to remove the IC memory card connected to the electrical connector. One of the conventional eject mechanisms comprises an operating lever, an eject lever that swings around a shaft pin as a fulcrum, and an eject plate that is connected to the other end of the eject lever by a pin. In the first prior art, when the operation lever is pushed, the eject plate finally operates, and the IC memory card held by the eject plate is moved in the detaching direction and separated from the electrical connector. However, it has the drawback of requiring a component called an eject plate.

Therefore, in order to reduce the number of parts, an eject mechanism is used in which the IC memory card is directly pushed by the other end of the eject lever which is swung by the operation lever, and thereby the IC memory card is removed. . Focusing on this second conventional technique, if the operation lever is located on one side of the center of the IC memory card, the eject lever is also located on one side of the IC memory card, and at the other end of the eject lever. The pushing end portion is also configured to push the end portion of the IC memory card near the operation lever.

[0004]

[Problems to be solved by the device]

 The second prior art described above has the advantage of requiring a small number of parts because it does not require an eject plate, but has the following problems. That is, since there is an operation lever and an eject lever on one side with the center of the IC memory card in the center, the ratio of the left and right lengths of the lever with the shaft pin, which is the swing center of the eject lever, in the lever ratio (load ratio) The ratio cannot be large. For this reason, there was a problem in the operability of the eject lever due to the operation lever. Therefore, if the load ratio of the eject lever itself is increased, that is, if the ratio of the left and right lengths of the lever is increased with the pivot pin at the center of swing, the outer shape of the IC memory card insertion holding device itself increases. There was a flaw.

[0005]

【Purpose】

 Therefore, the object of the present invention is not only to improve the operability of the eject lever by the operating lever by increasing the load ratio of the eject lever moved by the operating lever, but also to improve the operability of the IC memory card insertion holding device. The object is to achieve the above object without enlarging the outer shape. That is, it is possible to miniaturize. Moreover, it is also an object to reduce the number of parts such as the guide wall when the IC memory card is detached and to reduce the weight.

[0006]

[Means for solving the problem]

 In order to achieve the above object, the present invention has the following technical means. That is, the present invention will be described with reference to the reference numerals of the accompanying drawings corresponding to the embodiment. In the present invention, the operating lever 7, the eject lever 8 that can be oscillated by the pushing operation of the operating lever 7, and the swing of the eject lever 8 are described. In the ejecting mechanism of the IC memory card insertion and holding device, the IC memory card 11 is detached from the electrical connector 10 via the tip pushing portion 19 of the eject lever 8. The operation lever 7 is arranged on one side with the center 21 of the card 11 in the middle, and the eject lever 8 is arranged in a region from one side to the other side, and the tip pushing portion 19 of the eject lever 8 is arranged. The ejector 8 is arranged on the other side with the center 21 in between, and also includes a cam 22 having a continuous curved cam surface of the eject lever 8 and a cam receiving surface 23 on the main body side. Swing fulcrum DOO lever 8 is an IC memory card inserted holding device in eject mechanism of which lies in the other side region between the tip pressing portion 19 of the center 21 and the eject lever 8.

[0007]

[Action]

 According to the above configuration, when the operation lever 7 is pushed, the eject lever 8 swings around the fulcrum of the cam 22 and the cam receiving surface 23, and the tip pushing portion 19 pushes the tip surface 20 of the IC memory card 11. Add As a result, the IC memory card 11 is separated from the electric connector 10. By the way, the operating lever 7 is located in one side area, the tip pushing portion 19 of the eject lever 8 is located in the other side area, and the fulcrum of the cam 22 having the continuous curved cam surface and the cam receiving surface 23 is also located in the other side area. Therefore, the lever ratio of the eject lever 8, that is, the length from the fulcrum to the length between the fulcrum and the tip pressing portion 19 to the other connecting portion can be increased. Therefore, the operability of the operating lever 7 is improved and the size of the entire apparatus can be reduced.

[0008]

【Example】

 Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Reference numeral 1 denotes an entire IC memory card insertion holding device, and a main body 2 has an operation lever accommodating portion 3 shown on the right side in each of FIGS. 1 to 4 and an operation lever accommodating portion 3 thereof. The ejector lever accommodating portion 4 is disposed at a right angle and is shown below in each of FIGS. 1 to 4. In addition, the entrance guide cover case 5 is arranged at a side of the operation lever accommodating portion 3 at a position closer to the front side when viewed from the insertion direction of the IC memory card so as to be disposed at a right angle to the operation lever accommodating portion 3. A rear guide cover case 6 is disposed on the front side of the eject lever accommodating portion 4 as well as the rear side.

An operation lever 7 is slidably arranged in the operation lever accommodating portion 3, an eject lever 8 is arranged in the eject lever accommodating portion 4, and an electric lever is provided below the eject lever 8. The connector 10 is provided, and the electric connector 10 is connected to the conductor of the IC memory card 11 inserted through the inside cover case 5 and the inside guide cover case 6 of the entrance side.

That is, the IC memory card 11 is inserted / removed using the inner wall 12 of the entry side cover case 5 as a guide surface, and the frame wall 13 of the operation lever accommodating portion 3 is also inserted / removed as a guide surface. 6 is guided and inserted into the left and right inner walls 14 of the connector 6, and the terminal 15 of the electric connector 10 is electrically fitted and connected to the conductor of the IC memory card 11 at the completely inserted position. is there.

At this point, the eject lever 7 has an operation knob 16 formed at the front end when viewed from the insertion direction of the IC memory card 11, and at the rear end portion 17 at the back side, the eject pin 7 is ejected by the connecting pin 18. Are linked to. That is, it is connected to the connecting end portion 24 on one side of the eject lever 8 by the connecting pin 18.

On the other hand, a front end pushing portion 19 is formed at the other end portion of the eject lever 8 opposite to the connecting end portion 24 so as to project toward the IC memory card 11, and a front end surface 20 of the IC memory card 11 is formed. Is facing.

The above is a description of the overall configuration, but the features of the present invention will be described next. First, focusing on the eject lever 8, the tip pushing portion 19 of the eject lever 8 is present in a region opposite to the operation lever 7 side. That is, when the center of the IC memory card 11 is indicated by reference numeral 21, the operation lever 7 is located on the right side of the center 21 in each of FIGS. 1 to 4, but the eject lever 8 passes from the right side to the center 21. The tip pushing portion 19 that extends toward the left side and contacts the tip surface 20 of the IC memory card is located on the left side and is in contact with the left end of the IC memory card 11. The eject lever 8 swings with the fulcrum in the center in response to the pushing operation or the pulling back operation of the operation lever 7. The position of this fulcrum is based on the center 21 of the IC memory card 11. It is in the area opposite to the area where the operating lever 7 exists. In the example of FIGS. 1 to 4, it is on the left side of the center 21. From these, focusing on the load ratio of the eject lever, that is, the ratio of the length between the fulcrum and the tip pressing portion 19 and the length between the fulcrum and the connecting end portion 24, the length between the fulcrum and the connecting end portion 24 is relatively small. It is a big thing. Therefore, the required external force can be obtained by lightly operating the operating lever. This is also possible without increasing the overall size of the IC memory card insertion holding device.

When focusing on the fulcrum described above, the eject lever 8 of the present invention does not have a fulcrum such as a pin. Reference numeral 22 denotes a cam formed on the eject lever 8 and having a continuous curved cam surface, and a cam receiving surface 23 is formed on the main body side corresponding to the cam 22. Of course, the cam 22 and the cam receiving surface 23 having the continuous curved cam surface are both located on the opposite side to the area where the operation lever 7 is located with the center 21 of the IC memory card 11 in the middle. . As a mode of the continuous curved cam surface of the cam 22, a circular arc or the like is raised as shown in the figure. The eject lever 8 swings around a fulcrum composed of the cam 22 and the cam receiving surface 23. When the eject lever 8 swings, the continuous curved cam surface of the cam 22 is the cam receiving surface 23. The eject lever 8 oscillates while abutting against and moving the abutting position. Further, the fulcrum consisting of the cam 22 having the continuous curved cam surface and the cam receiving surface 23 is substantially the fulcrum, but the center when drawing the continuous curved cam surface, the center when drawing an arc in this example. There is an apparent fulcrum 25 when the eject lever 8 swings, and the apparent fulcrum 25 is a continuous curve mode of the cam surface. In the illustrated example, the size of the circular arc is changed to form a two-dot chain line. It can be moved to any position on 26.

Next, the ejecting operation of this IC memory card insertion holding device will be described. FIG. 1 shows that the IC memory card 11 is completely inserted and the terminal 15 of the electric connector 10 is fitted and connected to the conductor of the IC memory card 11. When the operation knob 16 of the eject lever 7 is pushed as shown by reference numeral A as shown in FIGS. 2 and 3, the eject lever 8 swings clockwise as shown by reference numeral B in the drawing. At this time, the eject lever 8 swings while the cam 22 having a continuous curved cam surface hits the cam receiving surface 23 and the contact position thereof is changed. As a result, the tip pushing portion 19 pushes up the tip surface 20 of the IC memory card 11 as indicated by the symbol C. Therefore, the IC memory card 11 begins to be detached, as indicated by the symbol D.

At this point, the tip pushing portion 19 of the eject lever 8 is on the left side of the center 21, and the fulcrum of the cam 22 having the continuous curved cam surface and the cam receiving surface 23 is also on the left side of the center 21. Therefore, since the distance between the fulcrum and the connecting end portion 24 is larger than the distance between the fulcrum and the tip pressing portion 19, the load ratio can be increased, so that the IC memory can be operated by a light operation of the operating lever 7. It is easy to remove the card 11. Even if the above load ratio is large, the outer shape of the entire IC memory card insertion holding device does not become large.

FIG. 4 shows the position where the operation lever 7 is further pressed. When the operation knob 16 is further pressed E, the eject lever 8 further swings clockwise F and the tip pressing portion 19 becomes the same. The figure shows a position where the IC memory card 11 itself has been completely removed H by swinging G clockwise. The IC memory card 11 itself is removed while being pulled toward the frame wall 13 side of the accommodating portion of the operation lever 7 in the process of the removal operation shown in FIGS. That is, since the tip pushing portion 19 is in the area opposite to the area where the operation lever 7 exists with the center 21 of the IC memory card 11 in the center, when pushed by the tip pushing portion 19, the IC memory card 11 is brought close to the frame wall 13. It is something that gets out of the way while being attacked. This does not require a special guide wall for the IC memory card on the left side in FIG. 4, and the overall size and weight can be reduced. If the fulcrum of the eject lever 8 is like a pin as in the conventional case, for example, if an electrical connector or the like is located below the fulcrum of the pin, the mechanism for providing the pin fulcrum becomes complicated, or Although the pin fulcrum must be provided at a position avoiding the position of the electric connector of the above, the design freedom is limited, but the fulcrum of the eject lever 8 of the present invention is the cam 22 having a continuous curved cam surface. Since the apparent fulcrum 25 that is formed by the cam receiving surface 23 is an apparent position as its name suggests, it is not necessary to provide a pin or the like there. It can be installed and has design flexibility. In addition, the apparent position of the fulcrum 25 can be moved to an arbitrary position of the chain double-dashed line 26 by changing the manner of forming the arc of the cam surface or the like, so that there is more design freedom. In particular, when the IC memory card insertion / holding device as a whole is made small and compact, the above-mentioned advantages are exerted.

[0018]

【effect】

 As described in detail above, the present invention has the following effects. That is, the operation lever is located on one side of the center of the IC memory card, and the eject lever that is swung by the operation lever is arranged from one side to the other side. Since it is on the other side and the fulcrum of this eject lever is also on the other side, the length between the fulcrum and the connecting end can be set larger than the distance between the fulcrum and the tip pressing part. The load ratio can be increased, and the IC memory card can be easily detached by a light operation of the operating lever. This provides an IC memory card insertion holding device having excellent detachability. In particular, because of this, it is not necessary to enlarge the eject lever to increase the size of the entire device, so the size and weight of the entire device can be reduced. Further, since the wall surface for guiding the insertion and removal of the IC memory card can be only the frame wall of the operation lever on one side, the weight of the device can be further reduced. In addition, if the fulcrum of the eject lever is like a pin as in the conventional case, for example, if an electrical connector or the like is located below the pin fulcrum, the mechanism for providing the pin fulcrum becomes complicated, or Although the pin fulcrum must be provided at a position that avoids the position of the electrical connector, which limits the degree of freedom in design, the fulcrum of the eject lever of this invention is a cam having a continuous curved cam surface and a cam receiving surface. As the name implies, the apparent fulcrum that is provided by this is an apparent position, so there is freedom in design because electrical connectors and the like can be freely arranged below. In addition, the position of the above-mentioned apparent fulcrum can be moved to any position by changing the formation mode of the arc of the cam surface or the like, so there is more design freedom. In particular, when the IC memory card insertion / holding device as a whole is made small and compact, the above-mentioned advantages are exhibited.

[Brief description of drawings]

FIG. 1 is a plan view showing a state where an IC memory card in which only a half of a back cover case is shown is connected to an electric connector.

FIG. 2 is a plan view showing a position where the operation lever is started to be pressed, where only half of the back cover case is shown.

FIG. 3 is a diagram showing a state similar to that of FIG. 2, with the back cover case removed.

FIG. 4 is a plan view showing a position where the IC memory card is ejected after the operation lever at the position where only half of the back cover case is shown is pushed.

5 is a vertical sectional view taken along line 4-4 of FIG.

[Explanation of symbols]

 1 IC memory card insertion holding device 2 Main body 3 Operation lever accommodating part 4 Ejector lever accommodating part 5 Entry side guide cover case 6 Back side guide cover case 7 Operation lever 8 Ejector lever 10 Electrical connector 11 IC memory card 12 Cover case inner wall 13 Accommodation Frame wall 14 cover case inner wall 15 terminal 16 operation knob 17 rear end 18 connecting pin 19 tip pusher 20 IC memory card tip 21 IC memory card center 22 cam with continuous curved cam surface 23 cam receiving surface 24 connection Edge 25 Apparent fulcrum

Claims (1)

[Scope of utility model registration request] 1. An operating lever 7 and an eject lever 8 which is swung by a pressing operation of the operating lever 7.
And the swing of the eject lever 8 causes the IC memory card 11 to pass through the tip pushing portion 19 of the eject lever 8.
In an ejecting mechanism in an IC memory card insertion holding device that is detached from the electric connector 10, the operation lever 7 is arranged on one side with the center 21 of the IC memory card 11 as a center. At the same time, the eject lever 8 is arranged in a region from one side to the other side, and the tip pushing portion 19 of the eject lever 8 is arranged on the other side with the center 21 in the middle. The swing fulcrum of the eject lever 8 including the cam 22 having the curved cam surface and the cam receiving surface 23 on the main body side is located in the other side region between the center 21 and the tip pushing portion 19 of the eject lever 8. Ejection mechanism for IC memory card insertion holding device.