Card braking structure

Abstract

To provide a card braking structure that can sufficiently brake a card when it is ejected even if there is an error in card width.SOLUTION: A card braking structure includes: a first lever 21 with a first swing end 21a moving toward and away from a guide wall in a card insertion path 4; a first spring member that biases the first lever 21; a second lever 23 that is supported by the first lever 21 so as to be swingable; and a second spring member that biases the second lever 23. The second lever 23 has a card contact surface 34 that contacts a card 2 inserted into the card insertion path 4. The second lever 23 presses the card 2 toward the guide wall 8, and the card contact surface 34 is brought into surface contact with a side surface 2d of the card 2.SELECTED DRAWING: Figure 11

Description

Technical Field

[0001] The present invention relates to a braking structure for a card that reduces the moving speed of the card by using a lever that contacts the card.

Background Art

[0002] Conventionally, as a card reader into which a card such as an IC card is inserted, for example, as described in Patent Document 1, there is one provided with a lever that swings in contact with the side surface of the card. The lever disclosed in Patent Document 1 is for performing a switch operation by swinging when a card is inserted into a card insertion path, and is swingably supported on one side portion of the card insertion path into which the card is inserted. This lever includes an outer arm portion extending from the swing axis toward the card entrance / exit side and an inner arm portion extending from the swing axis toward the back side of the card insertion path. The outer arm portion has a protruding card contact portion at a position facing the side surface of the card inserted into the card insertion path. The inner arm portion is biased by a spring member so that the outer arm portion swings toward the card side, and is connected to an operating element of the switch.

[0003] In the lever shown in Patent Document 1, the card contact portion of the outer arm portion is pressed against the card by the spring force of the spring member. Therefore, when the card is ejected, a braking force acts on the card due to the friction between the card contact portion and the card. By the way, the size of the card is not necessarily constant, and there are some errors due to differences in manufacturing manufacturers and the like.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the lever shown in Patent Document 1, since the card contact portion contacts the card by point contact, the contact area with the card is small, and when the size of the card is slightly small, the contact force when the card contact portion contacts the card may be small. When this contact force becomes small and the frictional resistance becomes small, the card may jump out from the card entrance and exit when the card is discharged from the card insertion path. Also, in a card reader in which a rectangular plate-shaped card has a card insertion direction orthogonal to the longitudinal direction, since the lever must be brought into contact with the short side of the card for braking, sufficient braking cannot be performed when the card is discharged, and there is a risk that the card may jump out.

[0006] An object of the present invention is to provide a card braking structure capable of sufficiently braking a card when the card is discharged even if there is an error in the card width.

Means for Solving the Problems

[0007] To achieve this object, a card braking structure according to the present invention is provided in a card insertion path through which a card inserted into a card entrance and exit passes, a guide wall extending parallel to one side surface of the card, and is swingably supported on a side portion of the card insertion path opposite to the guide wall, a first lever whose swing end approaches and separates from the guide wall in the card insertion path, a first spring member that biases the first lever in a direction in which the swing end approaches the guide wall, a second lever having a card contact surface that contacts the card inserted into the card insertion path and is swingably supported at the swing end of the first lever so as to swing when pushed by the card, and a second spring member that biases the second lever so that the card contact surface is pressed against the card. The second lever presses the card toward the guide wall with the spring forces of the first spring member and the second spring member as the first lever and the second lever swing as the card progresses, and the card contact surface contacts the other side surface of the card in a state of being pressed against the guide wall by surface contact.

[0008] In the braking structure of the card, one of the first lever and the second lever may have a detected part that is part of a detecting means for detecting that the card has been inserted into the card insertion path.

[0009] In the braking structure of the card, the card may be formed in a rectangular plate shape, and one side surface and the other side surface of the card may be side surfaces that are both ends in the longitudinal direction of the card.

[0010] In the braking structure of the card, the spring force of the first spring member may be greater than the spring force of the second spring member.

Advantages of the Invention

[0011] According to the present invention, since the card contact surface of the second lever contacts the card by surface contact, a stable frictional force is generated, so that even if there is an error in the card width, the card can be sufficiently braked when the card is ejected. A braking structure of the card can be provided.

Brief Description of the Drawings

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[0013] Hereinafter, an embodiment of the braking structure of a card according to the present invention will be described in detail with reference to FIGS. 1 to 12. The card reader 1 shown in FIG. 1 has a card insertion component 3 into which a non-contact IC card 2 (hereinafter simply referred to as card 2) is inserted. A card insertion path 4 extending in the direction from top to bottom in FIG. 1 is formed in the card insertion component 3. The card insertion path 4 is formed such that the direction from top to bottom in FIG. 1 is the card insertion direction. A card entrance / exit 5 for inserting or removing the card 2 is formed at the upstream end (the upper end in FIG. 1) in the card insertion direction. The card 2 is formed in a rectangular plate shape and is inserted into the card entrance / exit 5 with the short side direction orthogonal to its longitudinal direction as the insertion direction.

[0014] (Description of the card insertion path) As shown in Fig. 2, the card insertion path 4 is formed between a first insertion path forming member 6 formed in a groove shape that is open downward in Fig. 2, a plate-shaped second insertion path forming member 7 disposed so as to close the open portion of the groove formed by the first insertion path forming member 6, a guide wall 8 provided on one side portion 6a (the left side portion in Figs. 1 and 2) of the first insertion path forming member 6, and a lever mechanism 9 provided on the other side portion 6b (the side portion opposite to the guide wall 8 in the card insertion path 4) of the first insertion path forming member 6.

[0015] The first insertion path forming member 6 has a first passage wall 11 facing one main surface 2a of the card 2 (see Fig. 2). A plurality of protrusions 12 extending in the insertion direction of the card 2 project from the first passage wall 11. These protrusions 12 contact one main surface 2a of the card 2. The second insertion path forming member 7 has a second passage wall 13 facing the other main surface 2b of the card 2 and has a plurality of protrusions 14 projecting from the second passage wall 13 and extending in the card insertion direction. The protrusions 14 of the second insertion path forming member 7 contact the other main surface 2b of the card 2.

[0016] The guide wall 8 forms a part of the braking structure 15 according to the present invention and is formed so as to extend parallel to one side surface 2c of the card 2 (see Fig. 1). One side surface 2c and the other side surface 2d of the card 2 are the side surfaces at both ends in the longitudinal direction of the card 2. In Fig. 1, the guide wall 8 is depicted as a single wall, but the guide wall 8 can be constituted by protrusions protruding into the card insertion path 4, parts different from the first insertion path forming member 6 forming the card insertion path 4, and the like.

[0017] (Description of the lever mechanism) The lever mechanism 9 has a function of pressing the other side surface 2d of the card 2 to press the card 2 against the guide wall 8 and a function of applying a braking force to the card 2 discharged toward the card entrance / exit 5 within the card insertion path 4. The description of the lever mechanism 9 will be given later. At the innermost part of the card insertion path 4, two protruding pieces 16 that cross the card insertion path 4 in the thickness direction of the card 2 are arranged. The card 2 inserted into the card insertion path 4 contacts these protruding pieces 16. The protruding pieces 16 project from a slide member 17 located on the back side of the first passage wall 11 (the side opposite to the card insertion path 4) and pass through a long hole 18 (see FIG. 3) formed in the first passage wall 11. The long hole 18 extends in the insertion direction of the card 2.

[0018] The slide member 17 is part of a card ejection mechanism (not shown). When the card 2 inserted into the card insertion path 4 presses the protruding piece 16, it moves to a predetermined card processing position against the spring force of a spring member (not shown). The slide member 17 that has moved to the card processing position is held by a stopper of the card ejection mechanism while receiving the spring force of the spring member. When the processing of the card 2 is completed and the card 2 is ejected, the card ejection mechanism releases the holding state of the slide member 17 by the stopper. By releasing the holding state, the slide member 17 moves toward the card entrance / exit 5 by the spring force of the spring member and returns to the initial position. In this embodiment, even if the slide member 17 returns to the initial position at high speed due to the spring force of the spring member, the card 2 will not jump out from the card entrance / exit 5 because the lever mechanism 9 described later brakes the card 2.

[0019] The lever mechanism 9 cooperates with the guide wall 8 to constitute the braking structure 15 according to the present invention. As shown in FIG. 3, it includes a first lever 21 that faces into the card insertion path 4 through an opening 19 formed in the other side portion 6b of the first insertion path forming member 6. As shown in FIG. 4, the first lever 21 is formed in a shape that extends from outside the card insertion path 4 into the card insertion path 4 through the opening 19 and is swingably supported by a first support shaft 22 that penetrates the central portion in the longitudinal direction. The first support shaft 22 is provided on the other side portion 6b of the first insertion path forming member 6 in a state of extending in the thickness direction of the card 2.

[0020] (Description of the first lever) The first lever 21 is arranged in a posture inclined with respect to the card insertion direction (the direction from top to bottom in FIG. 1) as shown in FIG. 1. The direction in which the first lever 21 inclines is the direction in which the first swing end portion 21a located in the card insertion path 4 of the first lever 21 points to the back side of the card insertion path 4 from the first support shaft 22. The first lever 21 swings in such an inclined state so that the first swing end portion 21a contacts and separates from the guide wall 8 in the card insertion path 4. A second lever 23, which will be described later, is swingably supported on the first swing end portion 21a. The description of the second lever 23 will be given later.

[0021] A coil portion 24a of a first torsion coil spring 24 is attached to the tip of the first support shaft 22. In this embodiment, the first torsion coil spring 24 corresponds to the "first threaded member" in the present invention. The first torsion coil spring 24 biases the first lever 21 in the direction in which the first swing end portion 21a approaches the guide wall 8 (clockwise in FIG. 1). As shown in FIG. 5, one end portion 24b extending from the coil portion 24a of the first torsion coil spring 24 toward the first swing end portion 21a abuts against a first spring receiving piece 25 protruding from the first swing end portion 21a.

[0022] The other end portion 24c of the first torsion coil spring 24 abuts against a second spring receiving piece 26 provided on the first insertion path forming member 6. When the card 2 is not in contact with the first swing end portion 21a, the first lever 21 is biased by the first torsion coil spring 24, so that a second swing end portion 21b (see FIG. 6) on the side opposite to the first swing end portion 21a abuts against the second spring receiving piece 26, and further swinging is restricted. In the braking structure 15 according to this embodiment, the position of the first lever 21 when the second swing end portion 21b abuts against the second spring receiving piece 26 is the initial position.

[0023] As shown in FIGS. 4 and 7, the second swing end portion 21b is formed in an L-shaped cross section having a protruding piece 27 extending in the thickness direction of the card 2. This protruding piece 27 serves as a detected portion of a detecting means 28 for detecting that the card 2 has been inserted into the card insertion path 4. The protruding piece 27 according to this embodiment is formed in an arc-shaped cross section when viewed from the thickness direction of the card 2. The center of the arc is the first support shaft 22.

[0024] As shown in FIG. 6, an insertion detection sensor 29 is disposed in the movement path of the protruding piece 27 when the first lever 21 swings from the initial position. The detection means 28 is constituted by the protruding piece 27 and the insertion detection sensor 29. The insertion detection sensor 29 optically detects the protruding piece 27, and is attached to the first insertion path forming member 6 such that the optical path from the light emitting portion 29a to the light receiving portion 29b crosses the movement path of the protruding piece 27. The first lever 21 swings with respect to the card insertion path 4 by pushing the second lever 23, which will be described later, when the card 2 is inserted into the card insertion path 4. In the course of this swing, the protruding piece 27 crosses the optical path of the insertion detection sensor 29, and the insertion of the card 2 is detected by the insertion detection sensor 29.

[0025] (Description of the second lever) As shown in FIGS. 7 and 8, a support bracket 31 protrudes from the first swing end portion 21a of the first lever 21. The support bracket 31 is for supporting the second lever 23, and protrudes from the main body portion 21c of the first lever 21 so as to approach the first passage wall 11 of the first insertion path forming member 6 and protrudes toward the card entrance / exit 5. As shown in FIG. 8, a second support shaft 32 penetrates the support bracket 31 in the thickness direction of the card 2. The second support shaft 32 protrudes from the support bracket 31 in a direction opposite to the first passage wall 11. The second lever 23 is swingably supported on the second support shaft 32, and a second torsion coil spring 33 is attached thereto.

[0026] As shown in FIG. 9, the second lever 23 is formed in a shape that linearly extends from the second support shaft 32 toward the swing end 23a. When the card contact surface 34 formed on one side is pushed by the card 2, it swings counterclockwise in FIG. 9 against the spring force of the second torsion coil spring 33 from the initial position shown in FIG. 9. Here, the initial position of the second lever 23 means that, as shown in FIG. 1, the swing end 23a is on the guide wall 8 side of the second support shaft 32 and is located on the back side of the card insertion path 4, and the card contact surface 34 is in contact with the card 2 inserted into the card insertion path 4. A protrusion 35 that protrudes on the side opposite to the swing end 23a is provided at one end 23b through which the second support shaft 32 of the second lever 23 passes. Further, as shown in FIGS. 7 and 10, a third spring receiving piece 36 that protrudes toward the first passage wall 11 is provided at the swing end 23a of the second lever 23. The third spring receiving piece 36 is for receiving the spring force of the second torsion coil spring 33.

[0027] As shown in FIG. 8, for the second torsion coil spring 33, the coil portion 33a is disposed between the support bracket 31 and the second lever 23. One end 33b abuts against the third spring receiving piece 36, and the other end 33c abuts against the main body portion 21c of the first lever 21 as shown in FIG. 10, and it is held by the second support shaft 32. The spring force of the second torsion coil spring 33 is applied to the second lever 23 when the second lever 23 swings counterclockwise about the second support shaft 32 from the initial position shown in FIG. 9. The direction in which the second lever 23 is biased by the second torsion coil spring 33 is clockwise in FIG. 9. In this embodiment, the second torsion coil spring 33 corresponds to the "second spring member" in the present invention. The spring force of the second torsion coil spring 33 is set such that the second lever 23 swings prior to the first lever 21 when the second lever 23 is pushed by the card 2. That is, the spring force of the first torsion coil spring 24 is greater than the spring force of the second torsion coil spring 33.

[0028] The protrusion 35 provided at one end 23b of the second lever 23 abuts against the first stopper portion 37 of the first lever 21 when the second lever 23 swings in a direction opposite to the direction in which it is pushed by the card 2. When the second lever 23 is positioned at the initial position with the first lever 21 positioned at the initial position by the spring force of the first torsion coil spring 24, as shown in FIG. 4, the swinging end 23a of the second lever 23 is on the central side of the card insertion path 4 and is directed toward the back side.

[0029] The above-described card contact surface 34 is formed on one side portion on the downstream side in the direction in which the second lever 23 is biased by the spring force of the second torsion coil spring 33. More specifically, as shown in FIGS. 7 and 10, this card contact surface 34 is formed as a flat surface extending in the longitudinal direction of the second lever 23 and the thickness direction of the card 2. As shown in FIGS. 11(A) to (D), this card contact surface 34 comes into surface contact with the other side surface 2d of the card 2 when the second lever 23 is pushed by the card 2 and the first lever 21 and the second lever 23 swing. The operation of this second lever 23 will be described later.

[0030] As shown in FIG. 9, a lever contact surface 38 is formed on the other side portion of the second lever 23 opposite to the card contact surface 34. The lever contact surface 38 is a surface for determining the swing limit when the second lever 23 swings against the spring force of the second torsion coil spring 33. This lever contact surface 38 abuts against the main body portion 21c of the first lever 21 when the second lever 23 swings against the spring force of the second torsion coil spring 33. Hereinafter, a part of the first lever 21 against which the lever contact surface 38 abuts is simply referred to as the "second stopper portion 39".

[0031] (Explanation of the operation of the braking structure) Next, the operation of the braking structure 15 having the first lever 21 and the second lever 23 will be described with reference to FIGS. 11(A) to (D). FIGS. 11(A) to (D) are drawn with the first and second torsion coil springs 24 and 33 that bias the first lever 21 and the second lever 23 omitted. When the card 2 is inserted into the card insertion path 4, as shown in FIG. 11(A), the corner of the card 2 approaches the card contact surface 34 of the second lever 23. The corner of the card 2 is rounded in an arc shape when viewed in the thickness direction.

[0032] When the card 2 further advances from the state shown in FIG. 11(A), as shown in FIG. 11(B), the card 2 contacts the card contact surface 34, and the second lever 23 is pushed by the card 2. Since the spring force of the second torsion coil spring 33 is smaller than the spring force of the first torsion coil spring 24, at this time, the second lever 23 swings with respect to the first lever 21 against the spring force of the second torsion coil spring 33. At this time, the card 2 is pushed toward the guide wall 8 by the second lever 23 using the spring forces of the first torsion coil spring 24 and the second torsion coil spring 33 as pressing forces. By thus pushing the card 2 by the second lever 23, one side surface 2c of the card 2 is pressed against the guide wall 8.

[0033] When the card 2 further advances, as shown in FIG. 11(C), the lever contact surface 38 on the side opposite to the card contact surface 34 of the second lever 23 hits the second stopper portion 39 of the first lever 21, and the second lever 23 can no longer swing further. When the card 2 further advances while the second lever 23 is in contact with the second stopper portion 39, the first and second levers 21 and 23 swing as the card 2 advances. At this time, as shown in FIG. 11(D), the first lever 21 swings so that the card contact surface 34 of the second lever 23 becomes parallel to the other side surface 2d of the card 2. The card 2 is inserted to the innermost part of the card insertion path 4 while the card contact surface 34 of the second lever 23 is in sliding contact, and a predetermined process is performed. At this time, the slide member 17 of the discharge mechanism is held at the card processing position. When the card 2 is being subjected to a predetermined process, the swing end portion 23a of the second lever 23 is pressed against the card 2 by the spring force of the second torsion coil spring 33. By thus applying the spring force of the second torsion coil spring 33 to the second lever 23, the card contact surface 34 comes into surface contact with the other side surface 2d of the card 2.

[0034] When the predetermined process of the card 2 is completed, the card 2 is discharged by the discharging mechanism. At this time, frictional resistance due to the friction between the card contact surface 34 of the second lever 23 and the other side surface 2d of the card 2 is applied to the card 2, and the card 2 is braked. For this reason, although the structure is adopted in which the card 2 is discharged by the spring force of the spring member of the discharging mechanism, the card 2 does not jump out from the card entrance / exit 5 when the card is discharged, and the card 2 exits from the card entrance / exit 5 in a decelerated state.

[0035] When the size of the card 2 to be used is different from the specification, the first lever 21 and the second lever 23 swing within the ranges shown by the solid line and the two-dot chain line in FIG. 12, so that the card contact surface 34 contacts the other side surface 2d of the card 2 by surface contact. In FIG. 12, the solid line indicates the positions of the first lever 21 and the second lever 23 when the card 2 to be used is smaller than the specification, and the two-dot chain line indicates the positions of the first lever 21 and the second lever 23 when the card 2 to be used is larger than the specification. As shown in FIG. 12, even if there is an error in the card width, the card contact surface 34 can be translated by the individual swinging of the first lever 21 and the second lever 23, so that the card contact surface 34 comes into surface contact with the card 2. Therefore, according to this embodiment, since a stable frictional force is generated because the card contact surface 34 of the second lever 23 contacts the card 2 by surface contact, it is possible to provide a card braking structure capable of sufficiently braking the card 2 at the time of card discharge even if there is an error in the card width.

[0036] (Explanation of the effects of this embodiment) The first lever 21 according to this embodiment has a protruding piece 27 (detected part) that serves as part of a detection means 28 for detecting that the card 2 has been inserted into the card insertion path 4. Therefore, since it is possible to detect the presence or absence of the insertion of the card 2 by using a part of the braking structure 15, the space for installing components can be made smaller and the number of components can be made smaller compared to the case of providing a detected part dedicated to detecting the presence or absence of the insertion of the card 2. For this reason, miniaturization of the card reader 1 can be achieved and the manufacturing cost can be reduced.

[0037] The card 2 according to this embodiment is formed in a rectangular plate shape. One side surface 2c and the other side surface 2d of this card 2 are side surfaces that are both ends in the longitudinal direction of the card 2. For this reason, the length (depth) of the card insertion path 4 can be shortened. Although such a card insertion path 4 shortens the moving distance of the card 2 when the card is ejected, according to this embodiment, since sufficient frictional resistance is imparted from the card contact surface 34 that is in surface contact and the card 2 is sufficiently braked, it is possible to surely prevent the card 2 from popping out.

[0038] The spring force of the first torsion coil spring 22 according to this embodiment is greater than the spring force of the second torsion coil spring 33. For this reason, when the card 2 is inserted, after the second lever 23 swings, the first lever 21 swings, so that the card contact surface 34 surely follows the other side surface 2d of the card 2. For this reason, a braking structure with high braking reliability can be realized.

[0039] (Modification example of the lever mechanism) In the above-described embodiment, an example is shown in which both the first lever 21 and the second lever 23 in the braking state are directed toward the inner side of the card insertion path 4. However, the present invention is not limited to such a limitation. That is, the extending directions of the first lever 21 and the second lever 23 in the braking state can be configured as shown in FIGS. 13 and 14. In these figures, members that are the same as or equivalent to those described with reference to FIGS. 1 to 11 are denoted by the same reference numerals, and detailed description thereof will be omitted as appropriate.

[0040] In FIGS. 13 and 14, the direction in which the first lever 21 is biased by the first torsion coil spring 24 is indicated by an arrow A, and the direction in which the second lever 23 is biased by the second torsion coil spring 33 is indicated by an arrow B. Also, in FIGS. 13 and 14, the first lever 21 and the second lever 23 in the braking state are shown by solid lines, and the first lever 21 and the second lever 23 in the initial position are shown by two-dot chain lines. The first lever 21 shown in FIG. 13 has the same configuration as that shown in FIGS. 1 to 11. The second lever 23 is formed so as to extend from the second support shaft 32 toward the card entrance / exit 5 in the braking state. When the second lever 23 is in the initial position shown by the two-dot chain line, the swing end 23a obliquely extends so as to be on the card entrance / exit 5 side with respect to the second support shaft 32 and at the center side in the width direction of the card insertion path 4.

[0041] The first lever 21 shown in FIG. 14 obliquely extends such that the first swing end 21a is on the card entrance / exit 5 side with respect to the first support shaft 22 and at the center side in the width direction of the card insertion path 4. When the second lever 23 is in the initial position shown by the two-dot chain line, the swing end 23a obliquely extends so as to be on the back side of the card insertion path 4 with respect to the second support shaft 32 and at the center side in the width direction of the card insertion path 4. Even if the lever mechanism 9 is configured as shown in FIGS. 13 and 14, since the card contact surface 34 of the second lever 23 contacts the other side surface 2d of the card 2 by surface contact, a stable braking force can be obtained, and the card 2 can be prevented from popping out when the card is ejected.

Description of Reference Numerals

[0042] 1... Card reader, 2... Card, 2c... One side surface, 2d... The other side surface, 4... Card insertion path, 5... Card entrance / exit, 8... Guide wall, 15... Braking structure, 21... First lever, 21a... First swing end, 23... Second lever, 23a... Swing end, 24... First torsion coil spring (first spring member), 27... Projection (detected portion), 28... Detection means, 33... Second torsion coil spring (second spring member), 34... Card contact surface.

Claims

1. It is provided on a card insertion path through which a card inserted into a card entrance / exit passes, and includes a guide wall extending parallel to one side surface of the card, and a first lever swingably supported on a side portion opposite to the guide wall in the card insertion path, and having a swing end that contacts and separates from the guide wall within the card insertion path, and a first spring member that biases the first lever in a direction in which the swing end approaches the guide wall, and a second lever having a card contact surface that contacts the card inserted into the card insertion path, and being swingably supported on the swing end of the first lever so as to swing when pushed by the card, and a second spring member that biases the second lever so that the card contact surface is pressed against the card, and as the card advances, the first lever and the second lever swing, and the card is pressed toward the guide wall by the spring forces of the first spring member and the second spring member, wherein the card contact surface contacts the other side surface of the card in a state of being pressed against the guide wall by surface contact. A card braking structure characterized by this.

2. In the card braking structure according to Claim 1, a card braking structure, wherein one of the first lever and the second lever has a detected portion that is part of a detection means for detecting that the card has been inserted into the card insertion path.

3. In the card braking structure according to Claim 1, the card is formed in a rectangular plate shape, and one side surface and the other side surface of the card are side surfaces that are both ends in the longitudinal direction of the card. A card braking structure characterized by this.

4. In the card braking structure according to Claim 1, a card braking structure, wherein the spring force of the first spring member is greater than the spring force of the second spring member.

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