JP3888959B2 - Card ejector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a card ejection device that ejects a card inserted into an electronic device for replacement or the like.
[0002]
[Prior art]
As this type of card ejection device, for example, the one disclosed in JP-A-11-219756 is known.
[0003]
This known device of Japanese Patent Laid-Open No. 11-219756 includes a frame that guides and supports a card so that it can be inserted and removed, a push rod that reciprocates on the side of the frame, and a discharge lever mechanism that ejects the card upon receiving a pressing force from the push rod. And have.
[0004]
The push rod has a first rod that receives a pressing force from an operator and a second rod that transmits this force to the discharge lever mechanism, and both rods are engaged via an intermediate member. The intermediate member is rotatably supported by the first rod, and rotates between a position where it engages with the second rod and a position where this engagement is released. The rotation of the intermediate member is such that one end of a pin member attached to the intermediate member engages with a heart cam groove formed in the frame, and circulates and moves in the heart cam groove as the first rod moves back and forth. Is made by
[0005]
The heart cam groove guides one end of the pin member so as to give a predetermined rotation to the intermediate member, and for this guidance, the one end of the pin member is circulated in one direction and no reverse circulation occurs. An inclined surface or a step is formed on the bottom surface of the groove.
[0006]
By using such a heart cam groove, when the card is discharged, the intermediate member engages with the second rod to operate the discharge lever mechanism, and thereafter, the intermediate member is disengaged from the second rod. In the engaged state, the push button of the first rod protrudes from the front surface of the device, and in the released state, it is substantially at the front surface position.
[0007]
[Patent Literature]
JP-A-11-219756 (FIGS. 2 to 6)
[0008]
[Problems to be solved by the invention]
It is desired that a device equipped with the card ejection device as described above be miniaturized even a little. For this purpose, the card ejection device itself is also required to be downsized.
[0009]
However, since the known device described above uses the heart cam mechanism, it is difficult to reduce the size of the portion.
[0010]
Since the heart cam has a bottomed cam groove and a step is provided on the bottom surface of the heart cam, a cam groove depth, a step, and a bottom wall surface thickness are required, and the size of the heart cam increases accordingly. Further, the cam groove has a three-dimensionally complicated shape, and is formed by molding a resin for that purpose. Therefore, since the strength of the material is low, in order to secure the strength, this point must be thick.
[0011]
Furthermore, this heart cam mechanism requires many parts such as a pin member, an intermediate member, and an urging member in addition to the member in which the cam groove is formed. This not only means that the number of parts is large and the grooves become complicated, but the cost is high, and also the operation space for these many parts is required, which also increases the size.
[0012]
In the above known apparatus, the card is firmly inserted into a predetermined position and connected to the connector at the back, so that the engagement position between the pin member and the heart cam groove causes the push button to be retracted, that is, the push button is connected to the device. It is possible to prepare for card ejection by protruding from the front of the card.
[0013]
However, if the card is not firmly connected to the connector, for example, if the card is inserted halfway, or if the wrong card is accidentally inserted and not connected to the connector, the card will not be removed. However, the push button does not protrude from the front surface of the device, and is not ready for extraction. Even if the push button is pressed in this state, the discharge mechanism does not operate. At this position, since the rear end of the card protrudes only slightly from the front of the device, it is difficult to pick it up with a finger and eject the card.
[0014]
In view of such circumstances, the present invention provides a card ejection device that can be made easily and inexpensively, can be miniaturized, and can perform card ejection operation with a push button regardless of the position or presence of the card. The purpose is to do.
[0015]
[Means for Solving the Problems]
A card ejection device according to the present invention includes a frame having a support portion that guides and supports the card so that the card can be inserted and removed at a side of the card, and a push rod that reciprocates along a guide surface formed on an outer wall surface of the frame. And a discharge lever mechanism for receiving a pressing force from the tip of the push rod in the card insertion direction and discharging the card in the removal direction, and the push rod is moved forward for discharging the card from the operator. Indentation force As the above pressing force The first rod to be received and the push from the first rod Pressure A second rod that transmits force to the discharge lever mechanism, and the first rod and the second rod are linked when the card is discharged.
[0016]
In such a card ejection device, in the present invention, the guide surface of the frame, the first rod, and the second rod are formed in a plate shape, the frame has a guide plate substantially parallel to the guide surface, and the first rod, Each of the two rods has a plate surface arranged substantially parallel to the guide plate, and an engaging portion that engages with the guide portion formed on the guide plate at the front portion of the first rod facing the second rod. A cam member having The first rod is displaceably provided in a direction substantially parallel to the plate surface of the first rod and in a direction facing the plate surface of the guide plate, The cam member is urged rearward by a spring member. The guide portion includes a straight guide portion formed on the guide plate so as to extend forward as a groove edge or a side edge, and a front portion of the straight guide portion. And a cam member formed against a biasing force of the spring member or against the biasing force of the spring member. From the first rod It has an engaging portion guided by the edge of the straight guide portion and the hook-shaped portion when receiving the applied pressing force, and the engaging portion of the cam member is located in the hook-shaped portion. When the cam member advances by receiving a forward pressing force from the first rod, a contact pressure in a direction away from the surface of the guide plate is applied to the cam member so that the engaging portion is a hook-like portion. In order to detach from the frame side to the frame side, the detachment force applying portion is provided on the guide plate, or the pressure receiving slope is Cam member It is characterized by being provided at the front end.
[0017]
In this way, in the present invention, the frame guide surface, the first rod, and the second rod are all made of a metal material in a plate shape, and the plate surfaces are arranged in parallel to each other. Since the cam means for linking the one rod and the second rod is also operated by the guide portion formed on the plate-shaped guide plate, the dimension in the plate thickness direction of each member becomes smaller and the same direction As a result, the size in the same direction can be reduced. Moreover, since each member is a metal, the strength is high.
[0018]
Furthermore, in this invention, regardless of the position of the second rod, when the first rod is pushed with the push button, the engaging portion of the cam member engages with the detaching force applying portion of the guide plate, and from the hook-shaped portion. When the button is released, the push button comes to the retracted position, that is, the discharging operation possible position. Therefore, when the card is incompletely inserted halfway or is inadequately inserted and is in a position where it is difficult to remove, the card is retracted sufficiently by simply pushing the push button so that it protrudes sufficiently from the front of the electronic device. Can be easily removed.
[0019]
In the present invention, the hook-shaped portion has a rear edge portion that engages with the engaging portion of the cam member so as to prevent the cam member from moving backward, and the transition portion from the straight guide portion to the hook-shaped portion is the above-described portion. It is desirable to form at the edge of the part which protruded ahead rather than the rear edge part. By doing so, when the cam member is pushed forward to the maximum by the first rod and the engaging portion of the cam member is engaged with the hook-like portion, it is returned by the biasing force of the spring member to the rear when the pressing force is released. Thus, the engagement portion reliably engages with the rear edge portion, so that the engagement portion does not accidentally directly reach the separation force applying portion.
[0020]
It is preferable that the rear edge portion of the hook-shaped portion has a tapered surface that moves the engagement portion in a direction of deepening engagement with the rear edge portion by the biasing force of the spring member received by the cam member. In this way, the engagement portion increases the amount of engagement along the tapered surface and ensures the engagement as the cam member retracts at the hook-like portion under the biasing force of the spring member.
[0021]
In the present invention, the detachment force applying portion can be formed by the surface of the inclined portion cut and raised from the plate surface at the front edge portion of the hook-shaped portion of the guide plate. In such a form, processing becomes extremely simple.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an exploded perspective view of each member showing an embodiment of the present invention, and FIG. 2 is an assembled perspective view.
[0023]
In FIG. 1, reference numeral 10 denotes a frame that supports a card C such as a PC card so as to be reciprocally guided in the direction of arrow X, and has support portions 11 and 12 for supporting the card. The frame 10 is made by punching and bending a metal plate material, and as a whole, has a shape having “U” -shaped support portions 11 and 12 on both sides of the flat plate portion 10A. The support portions 11 and 12 support both sides of the card C and guide them in the X direction.
[0024]
Ground contact pieces 15 and 16 are provided at the rear portions (left portion in the drawing) of the side wall portions 13 and 14 of the support portions 11 and 12. The ground contact pieces 15 and 16 are the side wall portions. 13 , 14 By forming a “U” shaped groove on the arm, it is formed as an arm-like elastic flexible piece. The ground contact pieces 15 and 16 have contact portions 15A and 16A bent inward, and are in elastic contact with the ground portion formed on the side surface of the card C when the card is inserted. Also, the side wall 13 , 14 A mounting portion 11A protruding in a wing shape is provided at the lower end of the wing.
[0025]
In the present embodiment, of the two support portions 11 and 12, one support portion 11 is provided with an element for card ejection.
[0026]
First, the side wall portion 13 of the support portion 11 has inverted U-shaped guide pieces 17 and 18 which are partially bent and formed on the upper edge and the lower edge of the outer surface, and U-shaped guide pieces. 19, 20, and 21 are provided, respectively. These guide pieces 17 to 21 are for guiding and supporting push rods (first rod and second rod) described later. Further, another guide piece 22 is provided in an inverted U shape at a position slightly above the guide piece 21 located at the front lower edge of the side wall 13. Of the guide pieces 17 to 22, the guide piece 17 located at the rear part of the upper part of the side wall part 13 has a locking part 17 </ b> A extending outward at its end part, and a latching groove 17 </ b> B at the rear part thereof. Is formed.
[0027]
An integrally formed guide plate 23 extends from the lower edge of the side wall 13 of the frame 10 in the front-rear direction center (between the guide pieces 17, 20 and the guide piece 22). The guide plate 23 is provided in parallel with the side wall portion 13 of the frame 10, and a window-shaped guide portion 24 as a guide portion is formed at the center portion. This guide portion 24 includes a straight guide portion 25 that extends as a straight groove in the front-rear direction and the front thereof Part And a groove-like hook-shaped portion 26 formed upward. As shown in FIG. 4, the bowl-shaped portion 26 has a portion 26A protruding forward at the boundary portion with the straight guide portion 25, and is behind the portion 26A (left side in FIG. 4). The engaging portion of the cam member, which will be described later, is engaged in the region (1). The rear edge portion 26 </ b> B of the flange-shaped portion 26 forms a tapered surface that is inclined rearward toward the outside of the guide plate 23. As shown in FIG. 4, the upper edge of the bowl-shaped portion 26 has a stepped portion at the rear of the front edge of the bowl-shaped portion 26 in the front-rear direction. Is provided. The separation force applying portion 26C is formed as an inclined surface on the front edge portion so as to face the rear edge portion 26B in the front-rear direction. This inclined surface is formed by cutting the guide plate 23 obliquely outward at the position of the step portion, and is inclined in the same direction as the inclination of the rear edge portion 26B. Further, a contact piece 27 is provided at the upper rear portion of the guide plate 23, and the front edge thereof is a tapered contact surface 27A facing downward. Furthermore, the front end of the guide plate 23 is provided with an introduction surface 23A that is inclined so as to open outward.
[0028]
The push rod 30 has a first rod 31 and a second rod 32, both of which are made of a metal material and have a plate shape. The first rod 31 is configured such that a push button 33 is fixed to the rear portion, a circular concave support groove 34 is formed at the front end, and the bending of the ground contact piece 15 described above is formed in the middle portion closer to the rear portion. Is formed.
[0029]
Next, the second rod 32 is provided with a pressing engagement groove 36 formed at the front end and a pressure arm portion 37 extending rearward at the rear portion. The pressure arm portion 37 is positioned corresponding to the straight guide portion 25 of the guide portion 24 in the height direction. The rear end surface of the pressure arm portion 37 is a pressure receiving portion 37A that is pressed by the cam member. The tip end of an eject lever 39 of the card discharge lever mechanism is engaged with the pressing engagement groove 36 of the second rod 32, and the eject lever receives the pressing force from the second rod 32. 39 of lever The lever mechanism (not shown) ejects the card rearward by rotating the shape.
[0030]
A cam member 40 is disposed between the first rod 31 and the second rod 32. As is often seen in FIG. 3, the cam member 40 has a substantially circular shaped receiving portion 42 and a latching groove 43 </ b> A formed in the rear portion of the flat plate-like main body portion 41, and the latching piece extending sideways. 43 is provided. Further, an engaging portion 44 that is partly raised and bent outward is provided at the lower front edge of the main body portion 41. In addition, the front side Detachable force applying portion 26C of bowl-shaped portion 26 A pressure-receiving inclined surface 44A corresponding to the inclination is formed.
[0031]
The first rod 31, the second rod 32, and the cam member 40 are assembled as follows.
[0032]
As shown in FIG. 2, the first rod 31 to which the push button 33 is fixed at the rear end is housed in the groove of the guide pieces 17, 19, and 20 and at the upper and lower edges along the outer surface of the side wall portion 13 of the frame 10. Supported. In the substantially circular support groove 34 of the first rod 31, a supported portion 42 of the cam member 40 is accommodated, and the cam member 40 is rotatable up and down on the circular peripheral surface. . The cam member 40 is urged rearward by a coil spring 45 while being rotatably supported by the first rod 31. One end 45A of the coil spring 45 is hooked on the hooking groove 43A of the cam member 40, and the other end 45B is hooked on the hooking groove 17B of the guide piece 17 of the frame. In the state of FIG. 2, the engaging portion 44 of the cam member 40 located inside the guide plate 23 is engaged with the straight guide portion 25 of the guide plate 23. Further, the contact portion 15 </ b> A of the ground contact piece 15 of the frame is located in the window portion 35 of the first rod 31.
[0033]
The second rod 32 is guided and supported by guide pieces 18, 21, and 22 at a position along the outer surface of the side wall portion 13 of the frame 10. In this case, the guide pieces 18 and 21 are supported by the upper and lower edges of the second rod 32, but the guide piece 22 supports the upper edge of the pressed arm portion 37. At this time, since the plate-like portions of the first rod 31, the second rod 32, and the main body portion 41 of the cam member are located on the same plane, the size is reduced in the plate thickness direction. Moreover, the connection part of the guide plate 23 and the flame | frame 10 can also be used as the guide support of a 1st rod and a 2nd rod.
[0034]
The coil spring 45 stretched between the cam member 40 and the guide piece 17 of the frame 10 has an axial line located above the guide groove 24 and a frame that is more than the retaining groove 43A of the cam member 40. The hooking groove 17B of the ten guide pieces 17 is located rearward. As a result, a tension is applied to the latching groove 43A behind the cam member 40 to generate a rotational force with the supported portion 42 as a fulcrum, and an outward force is applied to the engaging portion 44 located in the front. Therefore, the coil spring 45 not only urges the cam member 40 backward, but also urges the engaging portion 44 of the cam member 40 against the inner surface of the guide plate 23 and pulls upward. Yes.
[0035]
The operation of the apparatus according to the present embodiment will be described with reference to FIGS. 5 and 6. 5 and 6, (1) A, (1) B and the subsequent figures show the order of operation. A is a cross-sectional view of the guide groove of the guide plate, and B is a side view of the guide plate. Is shown. The cross section is shown by the height at which the engaging portion 44 of the cam member 40 is located.
(1) In FIGS. 5A and 5B, the card is in a completely inserted state and is coupled to the connector. The cam member 40 is pulled by the coil spring 45 and is in a position where it abuts against the abutment surface 27A of the guide plate 23, that is, in the last retracted position. In this state, the push button 33 provided at the rear end of the first rod 31. Protrudes from the front panel of the device. The engaging portion 44 of the cam member 40 supported by the front portion of the first rod 31 is at the last retracted position in the straight guide portion 25 of the guide groove 24 formed in the guide plate 23, The rear end of the pressure arm portion 37 of the second rod 32 faces the close position.
(2) Next, the push button 33 is pushed against the urging force of the coil spring 45 to eject the card, and the first rod 31 is pushed forward. In this step, the engaging portion 44 of the cam member 40 is illustrated in the straight guide portion 25 from the position shown in FIGS. 5 (1) A and 5B through FIGS. 5 (2) A and 5B. 5 (3) The position reaches the state of A and B. Due to the forward movement of the engaging portion 44, the second rod 32 is driven forward by receiving a pressing force from the cam member 40 at the pressed arm portion 37. By this advancement, the eject lever 39 shown in FIG. 1 is pushed at the end, and the card is driven backward by its lever action to bring it to a position where it can be removed released from the connector. Thus, the card is removed. The forward movement of the first rod 31 is regulated by the frame 10 (not shown), and the engaging portion 44 of the cam member 40 abuts on the front edge of the hook-like portion 26 that continues from the straight guide portion 25. Absent.
(3) Since the cam member 40 is urged rearward and upward by the coil spring 45, when the engaging portion 44 reaches the foremost position of the straight guide portion 25, FIG. As shown in FIG. 5B, it goes around the protruding portion 26A and enters the bowl-shaped portion 26. At the next moment, it moves backward as shown in FIGS. 5 (4) A and B, and is hooked on the rear edge portion 26B. At this time, since the rear edge portion 26B has a tapered surface, the engaging portion 44 is guided by the tapered surface when retracted to deepen the engagement with the rear edge portion 26B. Thus, this engaged state is maintained. In this state, the push button 33 provided at the rear end of the first rod is not in the protruding position from the panel of the device.
(4) When the first rod 31 and the cam member 40 move forward by pushing the push button 33 to eject the card, the pressure receiving force of the engaging portion 44 of the cam member 40 as shown in FIGS. The inclined surface 44 </ b> A slides forward on the inclined portion of the detachment force applying portion 26 </ b> C of the hook-shaped portion 26 formed on the guide plate 23, and the locking portion 44 is moved from the guide portion 24, that is, the hook-shaped portion 26. It is pushed inward in the direction perpendicular to the plate thickness so as to float. As described above, the cam member 40 includes the coil spring 45, the upper side, and the guide. Board 23 Since the engaging portion 44 is disengaged from the hook-shaped portion 26, the guide 44 is guided at a position above the hook-shaped portion 26. Board 23 6 (3), while moving in sliding contact with the inner side plate surface, moves rearward through the states of FIGS. Meanwhile, the cam member 40 has nothing to do with the second rod 32. Therefore, the second rod 32 is 6 (1) There is no change from the positions of A and B. At this time, since the window portion 35 provided in the first rod 31 has a long shape in the front-rear direction, the first rod 31 and the ground contact pieces 15 and 16 do not interfere with each other.
(5) When the cam member 40 is further retracted by receiving the urging force of the coil spring 45, the cam member comes into contact with the inclined contact surface 27A of the guide plate 23 and rotates downward. As a result, the engaging portion 44 moves downward while sliding on the plate surface of the guide plate 23 and enters the rear portion of the straight guide portion 25 of the guide portion 24. That is, the state returns to the state of FIG. Thus, the card ejection operation is ready again.
(6) In the apparatus of this embodiment, when the card is not completely inserted and connected, for example, the card is inserted in the halfway state in an unconnected state, or the card for other equipment is mistakenly (inappropriate). When a new card is inserted, there is a request to eject the card from a position where the card is not connected to the connector. At this time, since the rear end of the card protrudes only slightly from the front panel of the device, it is difficult to remove it with a finger. In such a case, if the push button 33 is pushed in the manner of (4) above, the first rod 31 and the cam member 40 operate and retract regardless of the position of the second rod 32, and the card is loaded as shown in (5). It can be ejected backwards and easily removed with fingers.
[0036]
Next, another embodiment of the present invention will be described with reference to FIG.
[0037]
In the previous embodiment, the cam member 40 is formed separately from the push rod, but the present embodiment is characterized in that it is formed integrally with the first rod 31 of the push rod. In the example of FIG. 7, the first rod 31 and the cam member 40 are integrally connected by an elastic arm portion 46 instead of the coil spring in the previous embodiment. In this case, by setting the unloaded position of the locking portion 44 of the cam member 40 above and outside the guide portion, the elastic arm portion 46 has elasticity in two directions perpendicular to the longitudinal direction thereof. The urging force is applied to the engaging portion 44 in that direction. In the previous embodiment, the coil spring also applied a biasing force in three directions to the cam member 40. However, in the present embodiment, the first rod 31 and the cam member 40 are integrated by the elastic arm portion 46. The urging force on the upper and guide plate surfaces is not necessary.
[0038]
FIG. 8 shows still another embodiment of the present invention. In the embodiment of FIGS. 1 to 6, the guide plate is formed with a slit-shaped guide portion. However, in the present embodiment, the guide plate 23 has a guide portion 24 </ b> A corresponding to the guide portion 24 in FIG. 1. Is formed. This guide plate 23 is connected to the upper edge of the frame 1 by a locking portion 10B. The guide portion 24A has a straight guide portion 25A corresponding to the straight guide portion 25 in FIG. 1, and a hook-like portion 26D corresponding to the hook-like portion 26 in FIG.
[0039]
Further, in this embodiment, the cam member 40 has a guide auxiliary portion 47 formed on the lower edge of the latching piece 43 and engages with the upper guide edge 28 formed on the upper edge of the guide plate 23. ing. A tapered contact surface 27A similar to that shown in FIG. 1 is formed on the lower edge of the contact piece 27 of the guide plate 23.
[0040]
When the cam member 40 is pushed forward by the first rod, the engaging portion 44 moves along the straight guide portion 25A and reaches the hook-like portion 26D. At that time, the guide auxiliary portion 47 advances along with the engaging portion 44 along the upper guide edge 28. The cam member 40 is biased by a coil spring similar to that shown in FIG. 1, and when the engaging portion 44 moves forward to reach the hook-shaped portion 26D, the guide auxiliary portion 47 The engaging portion 44 enters the bowl-shaped portion 26 by rotating counterclockwise about the extending direction (the plate thickness direction of the guide plate) as an axis. Thus, the engaging portion 44 performs the operation {circle around (3)} described above and engages with the hook-like portion 26, and operates according to {circle around (4)} and {circle around (5)} when detached.
[0041]
The present invention is not limited to the illustrated embodiment and can be modified. For example, it is possible to detach only by providing one of the detaching force applying portion 26C and the pressure receiving inclined surface 44A, but it is preferable that both are provided. Further, in FIG. 1, the engaging portion of the cam member detached from the guide portion is retracted by sliding on the plate surface of the guide plate. At this time, the engaging portion is retracted by engaging with another groove. You may do it. Therefore, the engaging portion moves from the guide portion to another groove by the action of the separation force applying portion, and returns from the other groove to the guide portion by the action of the contact surface. The guide plate may be attached separately from the frame.
[0042]
【The invention's effect】
As described above, in the present invention, the push rod for driving the discharge lever mechanism for card discharge is constituted by the first rod and the second rod, and both rods are operated via the cam means. Since the guide plates having the guide portions for guiding the members and the cam means are all made into a plate shape and arranged so that the plate surfaces are parallel to each other, the arrangement of each other can be performed close to each other, As a result, it contributes to miniaturization. Furthermore, when made from a metal plate, the plate thickness can be reduced while maintaining high strength, and further miniaturization can be achieved. In addition, since the guide plate and the like can be manufactured by simple press processing, the processing cost is reduced, and the number of parts is reduced due to the simple configuration. Furthermore, even if a ground contact is provided on the guide surface of the frame, the guide surface and the push lot can be provided close to each other, contributing to downsizing.
[0043]
Furthermore, in the present invention, regardless of whether the card is inserted, that is, whether the card is completely imperfect or whether the card is present or not, the push button is in the card ejectable position. Even if the amount is small, it can be sufficiently projected by pushing the push button, and the card can be easily removed.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of an apparatus according to an embodiment of the present invention.
2 is an assembled perspective view of the apparatus of FIG. 1. FIG.
3 is an enlarged perspective view of a cam member in FIG. 1. FIG.
4 is an enlarged perspective view of a guide plate in FIG. 1. FIG.
FIGS. 5A and 5B show the operation when the card is ejected in the order (1) to (4). FIG. 5A is a cross-sectional view of the guide portion of the guide plate, and B is a side view.
FIGS. 6A and 6B show the operation at the time of card insertion in the order (1) to (3), where A is a cross-sectional view of the guide portion of the guide plate, and B is a side view.
FIG. 7 is a perspective view showing another embodiment of the present invention.
FIG. 8 is a perspective view showing still another embodiment of the present invention.
[Explanation of symbols]
10 frames
11 Supporting part
13 Guide surface (side wall)
23 Guide plate
24 Guide section
25 Straight guide
26 bowl
26C release force application section
30 push rod
31 First rod
32 Second rod
40 Cam member
44 engaging part
44A pressure-receiving slope
45 Spring member

Claims (4)

A frame having a support portion that guides and supports the card so that the card can be inserted and removed at a side portion of the card, a push rod that reciprocates along a guide surface formed on an outer wall surface of the frame, and a tip of the push rod in the card insertion direction And a discharge lever mechanism for discharging the card in the ejecting direction in response to the pressing force from the unit, and the push rod receives the first pressing force for the card discharging from the operator as the pressing force . as an rod, and a second rod that transmits the pressing force from said first rod to the discharging lever mechanism, said first rod and second rod in the card discharge device cooperating during card ejection, the guide surface of the frame The first rod and the second rod are formed in a plate shape, the frame has a guide plate substantially parallel to the guide surface, and each of the first rod and the second rod has a plate surface substantially parallel to the guide plate. Arrangement It is and, at the front portion of the first rod opposite the second rod, a cam member having an engagement portion engaged with the guide portion formed in the guide plate of the first rod by the first rod plate The cam member is urged rearward by a spring member, and the guide portion is provided at the groove edge or side end of the guide plate. The cam member has a straight guide portion formed to extend forward as an edge, and a hook-like portion formed by a groove edge communicating with the front portion of the straight guide portion. On the other hand, when receiving the pressing force applied from the first rod, it has an engaging portion guided by the edge of the straight guide portion and the hook-like portion, and the engaging portion of the cam member Is positioned in the bowl-shaped portion, the cam member exerts a pressing force forward from the first rod. In order to apply a contact pressure in a direction away from the surface of the guide plate to the cam member and move the engaging portion away from the hook-shaped portion toward the frame side when the head moves forward, the release force applying portion is applied to the guide plate. A card discharging device, characterized in that the card discharging device is provided or a pressure-receiving slope is provided at a front end of the cam member . The hook-shaped portion has a rear edge portion that engages with the engaging portion of the cam member so as to prevent the cam member from moving backward, and a transition portion from the straight guide portion to the hook-shaped portion is more than the rear edge portion. The card ejection device according to claim 1, wherein the card ejection device is formed at an edge of a portion protruding forward. The rear edge portion of the hook-shaped portion has a tapered surface that moves the engagement portion in a direction of deepening engagement with the rear edge portion by the biasing force of the spring member received by the cam member. The card ejection device according to claim 2. The card ejection device according to claim 1, wherein the separation force applying portion is formed by a surface of an inclined portion cut and raised from a plate surface at a front edge portion of the hook-shaped portion of the guide plate.

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