WO2015064124A1 - カードリーダ - Google Patents
カードリーダ Download PDFInfo
- Publication number
- WO2015064124A1 WO2015064124A1 PCT/JP2014/059833 JP2014059833W WO2015064124A1 WO 2015064124 A1 WO2015064124 A1 WO 2015064124A1 JP 2014059833 W JP2014059833 W JP 2014059833W WO 2015064124 A1 WO2015064124 A1 WO 2015064124A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- card
- rotation
- gear
- shaft
- ratchet
- Prior art date
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0013—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers
- G06K7/0056—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers housing of the card connector
- G06K7/0069—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers housing of the card connector including means for detecting correct insertion of the card, e.g. end detection switches notifying that the card has been inserted completely and correctly
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K13/00—Conveying record carriers from one station to another, e.g. from stack to punching mechanism
- G06K13/18—Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier being longitudinally extended, e.g. punched tape
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0013—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
- G06K7/082—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors
- G06K7/083—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive
- G06K7/084—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive sensing magnetic material by relative movement detecting flux changes without altering its magnetised state
Definitions
- the present invention relates to a card reader that reads data recorded on a card and records data on the card.
- the card lock mechanism includes a lock lever that prevents the card from being pulled out from the card insertion slot.
- the lock lever includes substantially triangular lock teeth that contact the card and prevent the card from being pulled out.
- the lock lever is rotatably supported by the support pin.
- the lock lever is connected to the motor via a connecting lever, a fan gear, and a gear train. The lock lever can be rotated between the position where the lock teeth are retracted from the card conveyance path and the position where the lock teeth are in contact with the card by the power of the motor.
- an object of the present invention is to provide a card reader capable of reliably preventing phishing with a relatively simple configuration.
- a card reader includes a card insertion slot into which a card is inserted and discharged, a card conveyance path through which a card inserted from the card insertion slot is conveyed, and a card conveyance path.
- a card lock mechanism for preventing the card from being pulled out from the card insertion slot when the card is abnormally stopped and the card is jammed in the card conveyance path.
- the card lock mechanism is rotated by a motor and the power of the motor.
- a clutch mechanism disposed between the rotation shaft and the gear, a pawl member that engages with the ratchet gear portion to prevent the gear from rotating, and a cam follower formed on the pawl member The pawl member is moved between the position where the contacting cam surface is formed and the ratchet gear portion and the pawl member are engaged, and the position where the engagement state between the ratchet gear portion and the pawl member is released, and relative to the rotation shaft
- a biasing member, a stopper that restricts the rotation range of the cam member, and a blocking portion that contacts the card and prevents the card from being pulled out are formed, and the blocking portion contacts the card by the power transmitted from the power transmission gear portion.
- the rotation direction of the rotation shaft, the gear and the cam member at the time of rotation is the first rotation direction
- the rotation direction of the rotation shaft, the gear and the cam member when the lock member moves from the contact position toward the retracted position is the second rotation direction.
- the ratchet gear portion and the pawl member are engaged, and when the rotation shaft rotates in the second rotation direction from the state where the lock member is in the contact position, the ratchet gear portion abuts one end of the engagement protrusion in the circumferential direction.
- the engagement state between the ratchet gear portion and the pawl member is released until the pin that has been in contact with the other end of the engagement protrusion in the circumferential direction and the gear starts to rotate in the second rotation direction. To do.
- the ratchet gear portion and the pawl member are engaged when the locking member is in the contact position where the blocking portion that prevents the card from coming into contact comes into contact with the card.
- the rotation of the gear in the direction in which the lock member moves toward the second direction (second rotational direction) is prevented, and the movement of the lock member in the direction from the contact position toward the retracted position is prevented. Therefore, in the present invention, even if a criminal tries to move the lock member in the direction from the contact position toward the retracted position by inserting a foreign object from the card insertion slot, it engages in the contact state between the blocking portion and the card. It is possible to prevent the blocking portion from moving until the ratchet gear portion and the pawl member are released.
- the blocking unit prevents the card from being pulled out from the card insertion slot. It becomes possible. As a result, phishing can be reliably prevented in the present invention.
- the torque limiter disposed between the rotating shaft and the cam member in the direction of transmission of the power from the motor has the rotating shaft in the first rotating direction from the state where the lock member is in the retracted position.
- the power of the rotating shaft is transmitted to the cam member, and when the cam member contacts the stopper, the transmission of the power of the rotating shaft to the cam member is interrupted and contacted.
- the rotation shaft rotates in the second rotation direction from the position where the lock member is located, the power of the rotation shaft is transmitted to the cam member.
- the clutch mechanism disposed between the rotation shaft and the gear in the transmission direction of the power from the motor has a pin on one end of the engagement protrusion in the circumferential direction as the rotation shaft rotates in the first rotation direction.
- the pin that is in contact with one end of the engagement protrusion in the circumferential direction is the other end of the engagement protrusion in the circumferential direction.
- the ratchet gear portion and the pawl member are engaged before the movement of the lock member from the retracted position to the contact position is completed without providing a separate drive source for driving the pawl member.
- the engagement state between the ratchet gear portion and the pawl member can be released until the gear starts to rotate in the second rotation direction. Therefore, in the present invention, phishing can be reliably prevented with a relatively simple configuration.
- the transmission of the power of the rotating shaft to the cam member is interrupted by the action of the torque limiter, and the cam member stops, so that the lock member is moved from the contact position to the retracted position.
- the engaged state between the ratchet gear portion and the pawl member can be released in a relatively short time after the motor is started and the cam member starts rotating together with the rotating shaft. Therefore, in the present invention, when the lock member is moved from the contact position to the retracted position, the engagement state between the ratchet gear portion and the pawl member is reliably released until the gear starts to rotate in the second rotation direction. It becomes possible.
- the rotating shaft, the cam member, and the gear are arranged coaxially.
- the torque limiter includes a torsion coil spring, the rotation shaft is inserted into the inner peripheral side of the torsion coil spring, and one end of the torsion coil spring is engaged with the inner peripheral side of the cam member.
- the card lock mechanism includes a plurality of pawl members and a plurality of holding shafts for rotatably holding the pawl members, and a plurality of ratchet teeth are provided on the outer peripheral surface of the ratchet gear portion. It is formed at an equiangular pitch with respect to the rotation center of the ratchet gear portion, and the axes of the plurality of holding shafts are arranged on a virtual circle centered on the rotation center of the ratchet gear portion, and the rotation center of the ratchet gear portion.
- the angle between the center axes of the holding shafts with respect to the rotation center of the ratchet gear portion is larger than the angle between the ratchet teeth with respect to the rotation center of the ratchet gear portion, and the rotation of the ratchet gear portion. It is preferably a value other than an integral multiple of the angle between the ratchet teeth with respect to the center.
- the ratchet gear portion is formed of a metal material
- the pawl member is formed of a resin material
- a plurality of ratchet teeth are formed on the outer peripheral surface of the ratchet gear portion
- the pawl member is engaged with the ratchet teeth.
- a plurality of engaging portions that can be engaged, and as the engaging portion, a first engaging portion that engages with the ratchet teeth when the ratchet gear portion and the pawl member are engaged, and the ratchet teeth and the first
- a second engaging portion that engages with the ratchet teeth when a rotational force in the second rotation direction acts on the gear and the first engaging portion is bent when the engaging portion is engaged.
- the ratchet gear part formed with a metal material and the pawl member formed with a resin material engage, the ratchet gear part compared with the case where the pawl member is formed with a metal material. It becomes possible to prevent the ratchet gear portion from being damaged when the and the pawl members are engaged. Moreover, if comprised in this way, since the pawl member is formed with the resin material, it becomes possible to reduce the cost of the pawl member. On the other hand, when the pawl member is formed of a resin material, the lock member is pushed in the direction from the contact position toward the retracted position, and when the rotational force in the second direction acts on the gear, the ratchet teeth are engaged.
- the mating first engaging portion may be bent and the engagement state between the ratchet gear portion and the pawl member may be released.
- the ratchet teeth and the first engaging portion are engaged. Since the ratchet teeth and the second engaging portion are engaged when the first engaging portion is bent due to the rotational force in the second rotating direction acting on the gear in the state where Even if the first engaging portion of the resin pawl member is bent due to the lock member being pushed in the direction to go, the engagement state between the ratchet gear portion and the pawl member by the first engaging portion and the second engaging portion. Can be maintained.
- a plurality of ratchet teeth are formed on the outer peripheral surface of the ratchet gear portion, and the pawl member includes a first engagement portion that comes into contact with the ratchet teeth and can be engaged with the ratchet teeth. It is preferable that the contact surface with the 1 engaging portion and the contact surface with the ratchet teeth of the first engaging portion are formed in curved surfaces having substantially the same curvature. If comprised in this way, it will become possible to enlarge the contact area of a ratchet tooth and a 1st engaging part. Therefore, even when the card reader receives an impact when the ratchet teeth are engaged with the first engagement portion, the engagement state between the ratchet teeth and the first engagement portion is not easily released.
- the card lock mechanism includes a holding shaft that rotatably holds the pawl member, a plurality of ratchet teeth are formed on the outer peripheral surface of the ratchet gear portion, and the pawl member is inserted through the holding shaft.
- a card reader includes a card insertion slot into which a card is inserted and discharged, a card conveyance path through which a card inserted from the card insertion slot is conveyed, and a card conveyance path.
- a card lock mechanism for preventing the card from being pulled out from the card insertion slot when the card is abnormally stopped and the card is jammed in the card transport path, the card insertion direction being the first direction, and the card ejection direction Is the second direction, one of the thickness directions of the card conveyed in the card conveyance path is the third direction, the other of the card thickness directions is the fourth direction, and the direction orthogonal to the first direction and the third direction is In the fifth direction, the card lock mechanism includes a lock member formed with a blocking portion that contacts the card and prevents the card from being pulled out, and a fixed shaft or lock that holds the lock member rotatably.
- a locking shaft that rotates together with the material, and the lock member is arranged on the third direction side of the card transport path, and the fixed shaft or the rotation shaft has the axial direction coinciding with the fifth direction.
- the locking member is disposed between the contact position where the blocking portion contacts the card and the retreat position where the blocking portion retracts from the card transport path.
- the lock member includes a blocking portion that contacts the card and prevents the card from being pulled out, and is disposed on the third direction side, which is one side in the thickness direction of the card, with respect to the card transport path. Yes.
- the blocking portion when the blocking portion is in the contact position where the blocking portion contacts the card, the blocking portion has a first direction that is the card insertion direction side toward the fourth direction that is the other side of the thickness direction of the card.
- a first blocking portion that inclines toward the side, and a second direction side that is a card discharge direction side with respect to the first blocking portion, and is directed toward the second direction side toward the fourth direction side. And an inclined second blocking portion.
- the lock member moves so that the second blocking portion is stuck in the card. Therefore, in the present invention, it becomes possible to prevent the card from being pulled out from the card insertion slot after the criminal pushes the lock member in the first direction using the foreign object.
- the first blocking unit is Since the lock member moves so as to pierce the card, in this case as well, it becomes possible to prevent the card from being pulled out from the card insertion slot. Therefore, in the present invention, it is possible to reliably prevent phishing with a relatively simple configuration in which the first blocking portion and the second blocking portion are provided.
- the card reader includes a conveyance roller that contacts the card and conveys the card, and a pad roller that is disposed opposite the conveyance roller in the thickness direction of the card and is biased toward the conveyance roller.
- the roller is arranged so as to face the card conveyance path from the third direction side
- the pad roller is arranged so as to face the card conveyance path from the fourth direction side, and the end of the conveyance roller in the fourth direction in the thickness direction of the card
- the center position of the card conveyance path in the card thickness direction substantially coincides, and the pad roller moves in the fourth direction when the second blocking portion contacts the card and the lock member is in the contact position.
- the fourth direction end of the first blocking unit and the fourth direction end of the second blocking unit are arranged on the fourth direction side of the center position of the card transport path in the card thickness direction, and the locking member Is disposed on the second direction side and the third direction side of the second blocking portion when the lock member is in the contact position, and is disposed at substantially the same position as the center position of the card transport path in the card thickness direction.
- the abutting surface is formed, and the distance from the fixed shaft or rotating shaft to the abutting surface is preferably shorter than the distance from the fixed shaft or rotating shaft to the second blocking portion.
- the 4th direction end of a 1st prevention part and the 4th direction end of a 2nd prevention part are rather than the center position of the card conveyance path in the thickness direction of a card
- the abutting surface arranged on the second direction side and the third direction side with respect to the second blocking portion is arranged at substantially the same position as the center position of the card transport path in the card thickness direction. Therefore, the foreign object inserted by the criminal from the card insertion slot is likely to come into contact with the abutting surface.
- the distance from the fixed shaft or the rotation shaft to the abutting surface is shorter than the distance from the fixed shaft or the rotation shaft to the second blocking portion.
- the first blocking portion and the second blocking portion are formed in a triangular shape whose width becomes narrower toward the tip when viewed from the fifth direction.
- the card reader is preferably provided with a rotation prevention mechanism that prevents the lock member from rotating when in the contact position. If comprised in this way, even if a criminal tries to move a lock member to a 1st direction with a strong force using the foreign material inserted from a card insertion slot, until the contact state of a prevention part and a card is cancelled
- the card reader of the present invention can reliably prevent phishing with a relatively simple configuration.
- FIG. 3 is a perspective view of the card lock mechanism shown in FIG. 2. It is a top view of a rotating shaft, a gear, a cam member, etc. which are shown in FIG.
- FIG. 5 is a cross-sectional view taken along line EE in FIG. 4.
- FIG. 3 is a perspective view of the gearwheel shown in FIG. 3, a cam member, and a pawl member.
- FIG. 3 is a perspective view of the gearwheel shown in FIG. 3, a cam member, and a pawl member.
- FIG. 3 is a perspective view for demonstrating the structure of the gearwheel shown in FIG. 3, a cam member, and a pawl member.
- FIG. 17 is a perspective view of the gear and the pawl member shown in FIG. 16. It is a figure for demonstrating the structure of the ratchet gear part and pawl member shown in FIG.
- FIG. 1 is a perspective view of a card reader 1 according to an embodiment of the present invention.
- FIG. 2 is a view for explaining the configuration of the front end side of the card reader 1 shown in FIG.
- the card reader 1 of this embodiment is a device for reading data recorded on the card 2 and / or recording data on the card 2, and is used by being mounted on a predetermined host device such as an ATM.
- the card reader 1 includes a card insertion portion 4 in which a card insertion slot 3 into which a card 2 is inserted and discharged is formed, and a main body portion 5. Inside the card reader 1 is formed a card transport path 6 through which the card 2 inserted from the card insertion slot 3 is transported. Further, the card reader 1 pulls out the card 2 from the card insertion slot 3 when the card 2 is abnormally stopped in the card transport path 6 due to an illegal act of a criminal and the card 2 is jammed in the card transport path 6.
- a card lock mechanism 7 for blocking is provided.
- the card 2 is conveyed in the X direction shown in FIG. Specifically, the card 2 is inserted in the X1 direction, and the card 2 is ejected in the X2 direction. That is, the X1 direction is the card 2 insertion direction, and the X2 direction is the card 2 ejection direction. Further, the Z direction in FIG. 1 and the like orthogonal to the X direction is the thickness direction of the card 2 conveyed in the card conveyance path 6, and the Y direction in FIG. 1 and the like orthogonal to the X direction and the Z direction is the card conveyance. It is the width direction (short width direction) of the card 2 conveyed by the path 6.
- the X1 direction side is the “back (back)” side
- the X2 direction side is the “front” side
- the Y1 direction side is the “right” side
- the Y2 direction side is the “left” side
- the Z1 direction side is The “upper” side and the Z2 direction side are the “lower” side.
- the X1 direction is the first direction
- the X2 direction is the second direction
- the Z1 direction is the third direction
- the Z2 direction is the fourth direction
- the Y direction is the fifth direction.
- Card 2 is, for example, a rectangular vinyl chloride card having a thickness of about 0.7 to 0.8 mm.
- a magnetic stripe on which magnetic data is recorded is formed on the card 2.
- the card 2 contains an IC chip, for example.
- the card 2 may include a communication antenna.
- the card 2 may be a PET (polyethylene terephthalate) card having a thickness of about 0.18 to 0.36 mm, or a paper card having a predetermined thickness.
- the card insertion part 4 is attached to the front end surface of the main body part 5.
- the main body 5 includes a magnetic head for reading and recording magnetic data, an IC contact for performing data communication with an IC chip built in the card 2, and the like.
- the main body 5 includes a transport roller 10 that contacts the card 2 and transports the card 2, and a pad roller 11 that is disposed to face the transport roller 10 in the vertical direction.
- the transport roller 10 is disposed so as to face the card transport path 6 from above.
- the pad roller 11 is disposed so as to face the card transport path 6 from below.
- the rotation center of the transport roller 10 is constant.
- the pad roller 11 is urged toward the conveying roller 10 by an urging member (not shown), and the rotation center of the pad roller 11 is movable in the vertical direction. That is, the pad roller 11 can move in the vertical direction.
- the pad roller 11 When there is no card 2 in the card transport path 6, the upper end of the pad roller 11 is in contact with the lower end of the transport roller 10.
- the pad roller 11 When the card 2 is transported, the pad roller 11 is lowered by the thickness of the card 2, the transport roller 10 contacts the upper surface of the card 2, and the pad roller 11 contacts the lower surface of the card 2. That is, the card 2 is transported while being sandwiched between the transport roller 10 and the pad roller 11 in the vertical direction.
- the lower end of the transport roller 10 and the center position of the card transport path 6 in the vertical direction substantially coincide with each other in the vertical direction.
- FIG. 3 is a perspective view of the card lock mechanism 7 shown in FIG. 4 is a plan view of the rotary shaft 18, the gear 19, the cam member 21, and the like shown in FIG. 5 is a cross-sectional view taken along the line EE of FIG. 6 to 8 are perspective views for explaining the configuration of the gear 19, the cam member 21, and the pawl member 22 shown in FIG.
- the card lock mechanism 7 is disposed above the card transport path 6.
- the card lock mechanism 7 includes a motor 15, a gear train 16 connected to the output shaft of the motor 15, a rotating shaft 18 that rotates together with a final gear 17 that constitutes the gear train 16, and power transmission for power transmission.
- a gear 19 having a ratchet gear portion 19b that rotates integrally with the gear portion 19a and the power transmission gear portion 19a, a substantially cylindrical cam member 21 having cam surfaces 21a to 21c formed on the outer peripheral surface, and a ratchet gear portion 19b.
- Three pawl members 22 engaged with the gear 19 to prevent the rotation of the gear 19, a lock member 23 for preventing the card 2 from being pulled out, and a fan-shaped gear for transmitting the power of the power transmission gear portion 19a to the lock member 23. 24 and a connecting lever 25.
- the gear 19 and the cam member 21 are held on the rotary shaft 18 so as to be relatively rotatable.
- the rotating shaft 18, the gear 19, and the cam member 21 are arranged coaxially.
- the rotation center of the rotation shaft 18, the rotation center of the gear 19, and the rotation center of the cam member 21 coincide.
- the radial direction of the rotary shaft 18, the gear 19 and the cam member 21 is referred to as “radial direction”
- the circumferential direction of the rotary shaft 18, the gear 19 and the cam member 21 is referred to as “circumferential direction”.
- the clockwise direction in FIG. 2 is referred to as “clockwise”
- the counterclockwise direction in FIG. 2 is referred to as “counterclockwise”.
- the rotary shaft 18 is arranged so that its axial direction and the left-right direction coincide.
- the rotating shaft 18 is rotatably held by the frame of the card lock mechanism 7.
- a pin 31 is attached to the left end side of the rotating shaft 18, and a pin 32 is attached to the right end side of the rotating shaft 18.
- a pin 33 is attached between the pin 31 and the pin 32 in the left-right direction.
- the pins 31 to 33 are attached to the rotary shaft 18 so that the axial direction and the radial direction of the pins 31 to 33 coincide (that is, pass through the axis of the rotary shaft 18). Further, both end portions of the pins 31 to 33 protrude to both sides in the radial direction of the rotating shaft 18.
- the pin 31 is disposed in an engagement hole 17a (see FIG. 5) formed at the center of the final gear 17, and functions to transmit the power of the final gear 17 to the rotary shaft 18.
- the motor 15 When the motor 15 is driven, the power of the motor 15 is transmitted to the rotary shaft 18 through the gear train 16 and the pin 31 and the rotary shaft 18 rotates. That is, the rotating shaft 18 rotates with the power of the motor 15.
- illustration of the last gearwheel 17 is abbreviate
- a resin sleeve 34 formed in a substantially cylindrical shape with a flange is disposed between the pin 31 and the pin 32 in the left-right direction.
- the rotating shaft 18 is inserted into the inner peripheral side of the sleeve 34.
- Each end of the pin 33 is inserted into the sleeve 34, and the sleeve 34 rotates integrally with the rotary shaft 18.
- the gear 19 includes a power transmission gear portion 19a and a ratchet gear portion 19b.
- the power transmission gear portion 19a and the ratchet gear portion 19b are integrally formed.
- the power transmission gear portion 19a and the ratchet gear portion 19b are coaxially arranged, and the rotation center of the power transmission gear portion 19a and the rotation center of the ratchet gear portion 19b coincide.
- the rotation center of the power transmission gear portion 19 a and the ratchet gear portion 19 b is the rotation center of the gear 19.
- the outer diameter of the power transmission gear portion 19a is larger than the outer diameter of the ratchet gear portion 19b.
- the power transmission gear portion 19a is disposed on the right side of the ratchet gear portion 19b.
- the power transmission gear portion 19a and the ratchet gear portion 19b may be formed separately and fixed to each other.
- a plurality of ratchet teeth are formed on the outer peripheral surface of the ratchet gear portion 19b at an equiangular pitch with respect to the rotation center of the ratchet gear portion 19b.
- 30 ratchet teeth are formed at a 12 ° pitch with respect to the rotation center of the ratchet gear portion 19b.
- the ratchet teeth prevent rotation of the gear 19 in the clockwise direction and enables rotation of the gear 19 in the counterclockwise direction when the ratchet gear portion 19b and the pawl member 22 are engaged. It is formed to do.
- a recess 19 c that is recessed toward the right side is formed on the left end surface of the gear 19.
- the recess 19c is formed with two engaging projections 19d that protrude radially inward from the radially outer end of the recess 19c.
- the two engagement protrusions 19 d are formed at a 180 ° pitch with respect to the rotation center of the gear 19.
- the shape of the engagement protrusion 19d when viewed from the left-right direction is a substantially triangular shape with a sharp inner end in the radial direction.
- end faces (one end face) 19e in the clockwise direction of the two engagement protrusions 19d are parallel to each other, and the end faces (other end faces) 19f in the counterclockwise direction of the two engagement protrusions 19d are parallel to each other. ing.
- a pin 32 is disposed in the recess 19c, and the pin 32 can be engaged with both ends (that is, one end surface 19e and the other end surface 19f) of the engagement protrusion 19d in the circumferential direction.
- the pin clutch 36 is configured by the pin 32 and the engagement protrusion 19d. The pin clutch 36 rotates the rotation shaft 18 counterclockwise by the power of the motor 15 and the pin 19 contacts the two end faces 19e. When the rotating shaft 18 rotates clockwise with the power of the motor 15 and the pins 32 come into contact with the two other end surfaces 19f, the power of the rotating shaft 18 rotating in the clockwise direction is transmitted to the gear 19. .
- the pin clutch 36 is moved to the gear 19 of the power of the rotation shaft 18. Block transmission.
- the rotation angle of the rotation shaft 18 (idling angle of the rotation shaft 18) at which the transmission of power from the rotation shaft 18 to the gear 19 is interrupted is, for example, 126 °.
- the pin clutch 36 of this embodiment is a clutch mechanism that is disposed between the rotary shaft 18 and the gear 19 in the direction of transmission of power from the motor 15.
- the cam member 21 is disposed between the final gear 17 and the gear 19 in the left-right direction. As shown in FIG. 5, the cam member 21 is disposed on the outer peripheral side of the sleeve 34. As described above, the cam surfaces 21 a to 21 c are formed on the outer peripheral surface of the cam member 21. In addition, a protrusion 21 d that protrudes outward in the radial direction is formed on the outer peripheral surface of the cam member 21. A linear groove portion 21 e formed from the left end of the cam member 21 toward the right end side is formed on the inner peripheral surface of the cam member 21.
- the cam surfaces 21a to 21c are formed at positions shifted from each other in the left-right direction.
- a cam surface 21a is formed on the left end side of the cam member 21
- a cam surface 21c is formed on the right end side of the cam member 21
- the cam surface 21b is formed between the cam surface 21a and the cam surface 21c in the left-right direction. Is formed.
- the cam surfaces 21a to 21c are formed at positions shifted from each other in the circumferential direction. In this embodiment, the cam surfaces 21a to 21c are formed in this order in the clockwise direction.
- Each of the cam surfaces 21a to 21c is in contact with a cam follower 22a described later formed on each of the three pawl members 22.
- the cam member 21 has a function of moving the pawl member 22 between a position where the ratchet gear portion 19b and the pawl member 22 are engaged and a position where the engagement state between the ratchet gear portion 19b and the pawl member 22 is released.
- the pawl member 22 rotates about a holding shaft 41 (to be described later) along the cam surfaces 21a to 21c.
- the cam surfaces 21a to 21c of this embodiment are formed so that the three pawl members 22 perform the same movement.
- the protruding portion 21d is formed on the counterclockwise direction side of the cam surface 21a.
- a stopper 37 that restricts the rotation range of the cam member 21 is fixed to the frame of the card lock mechanism 7.
- the stopper 37 is formed in an elongated cylindrical shape, and is arranged so that the axial direction thereof matches the left-right direction.
- the protrusion 21d contacts the stopper 37 and the cam member 21 rotates counterclockwise. Range is regulated.
- a torsion coil spring 38 is disposed between the inner peripheral surface of the cam member 21 and the outer peripheral surface of the sleeve 34 in the radial direction. That is, the rotating shaft 18 and the sleeve 34 are inserted into the inner peripheral side of the torsion coil spring 38.
- the inner diameter of the torsion coil spring 38 is smaller than the outer diameter of the sleeve 34, and the inner peripheral surface of the torsion coil spring 38 and the outer peripheral surface of the sleeve 34 are in contact with each other with a predetermined contact pressure.
- One end of the torsion coil spring 38 is engaged with the groove 21e of the cam member 21, as shown in FIG. That is, one end of the torsion coil spring 38 is engaged with the inner peripheral side of the cam member 21.
- the torsion coil spring 38 when the sleeve 34 rotates in the clockwise direction together with the rotating shaft 18, the torsion coil spring 38 is tightened (that is, the diameter of the torsion coil spring 38 decreases), and the sleeve 34 moves in the counterclockwise direction together with the rotating shaft 18.
- the torsion coil spring 38 When rotated, the torsion coil spring 38 is wound so that the torsion coil spring 38 is loosened (that is, the diameter of the torsion coil spring 38 is increased).
- the torsion coil spring 38 rotates until the protrusion 21d contacts the stopper 37 when the rotary shaft 18 rotates counterclockwise from a state in which the lock member 23 is located at a later-described retracted position 23B.
- the power of the shaft 18 is transmitted to the cam member 21, and when the protrusion 21d comes into contact with the stopper 37, the transmission of the power of the rotating shaft 18 to the cam member 21 is interrupted.
- the torsion coil spring 38 transmits the power of the rotating shaft 18 to the cam member 21 when the rotating shaft 18 rotates clockwise from a state where the lock member 23 is in a contact position 23A described later.
- the torsion coil spring 38 constitutes a torque limiter disposed between the rotating shaft 18 and the cam member 21 in the direction of transmission of power from the motor 15.
- the pawl member 22 is rotatably held by a holding shaft 41 that is fixed to the frame of the card lock mechanism 7. That is, the card lock mechanism 7 includes three holding shafts 41 that rotatably hold the three pawl members 22.
- the three holding shafts 41 are arranged such that the axial direction thereof coincides with the left-right direction.
- the axes of the three holding shafts 41 are arranged on an imaginary circle centered on the rotation center of the ratchet gear portion 19b.
- the holding shafts 41 are disposed at three locations on the diagonally upper front side, the front side, and the diagonally front lower side of the ratchet gear portion 19b.
- the pawl member 22 is formed with a cam follower 22a that comes into contact with the cam surfaces 21a to 21c.
- the cam follower 22a formed on each of the three pawl members 22 is formed at a position shifted from each other in the left-right direction so as to contact each of the cam surfaces 21a to 21c.
- the pawl member 22 held by the holding shaft 41 arranged obliquely on the front upper side of the ratchet gear portion 19b is formed with a cam follower 22a that contacts the cam surface 21a, and is arranged on the front side of the ratchet gear portion 19b.
- the pawl member 22 held by the hold shaft 41 is formed with a cam follower 22a that comes into contact with the cam surface 21b, and the pawl member 22 held by the hold shaft 41 disposed obliquely in front lower side of the ratchet gear portion 19b.
- a cam follower 22a is formed in contact with the cam surface 21c.
- the pawl member 22 is urged counterclockwise about the holding shaft 41 by a torsion coil spring 42 as an urging member.
- the cam follower 22a is in contact with the cam surfaces 21a to 21c by the biasing force of the torsion coil spring 42. That is, the torsion coil spring 42 urges the pawl member 22 in the direction in which the cam follower 22a contacts the cam surfaces 21a to 21c. Further, the torsion coil spring 42 biases the pawl member 22 in a direction in which the ratchet gear portion 19b and the distal end portion of the pawl member 22 are engaged.
- the pawl member 22 is engaged with the ratchet gear portion 19b by the action of the torsion coil spring 42, the cam surfaces 21a to 21c, and the cam follower 22a, and the engagement state is released from the ratchet gear portion 19b.
- the distal end portion of the pawl member 22 prevents the gear 19 from rotating in the clockwise direction and the gear 19 in the counterclockwise direction. It is formed to allow rotation.
- the shaft centers of the three holding shafts 41 are arranged on a virtual circle centered on the rotation center of the ratchet gear portion 19b as described above.
- the angle between the shaft centers of the holding shaft 41 with respect to the rotation center of the ratchet gear portion 19b is larger than the angle between the ratchet teeth with respect to the rotation center of the ratchet gear portion 19b.
- the angle between the axes of the holding shaft 41 with respect to the rotation center of the ratchet gear portion 19b is a value other than an integer multiple of the angle between the ratchet teeth with respect to the rotation center of the ratchet gear portion 19b.
- the angle between the axes of the holding shaft 41 with respect to the rotation center of the ratchet gear portion 19b is 52 °. Therefore, in this embodiment, when one pawl member 22 and the ratchet gear portion 19b are completely engaged, the remaining two pawl members 22 and the ratchet gear portion 19b are not completely engaged. . That is, in this embodiment, the phase of the three pawl members 22 and the phase of the ratchet teeth are shifted.
- the lock member 23 is disposed in front of and below the gear 19. Further, the lock member 23 is disposed above the card transport path 6. As shown in FIG. 3, the lock member 23 is formed between two lock plates 45 formed with a blocking portion 45 a that contacts the card 2 and prevents the card 2 from being pulled out, and the two lock plates 45.
- the spacer 46 is arranged.
- the lock plate 45 is formed in a flat plate shape orthogonal to the left-right direction.
- the spacer 46 is formed in a thick plate shape thicker than the lock plate 45.
- the two lock plates 45 are fixed to each other with the spacer 46 interposed therebetween.
- the front upper end side of the lock member 23 is rotatably held by a fixed shaft 47 fixed to the frame of the card lock mechanism 7.
- the fixed shaft 47 is arranged so that the axial direction thereof matches the left-right direction.
- the blocking portion 45 a is formed on the lower end side of the lock plate 45. In other words, the blocking portion 45 a is disposed below the fixed shaft 47. Further, the blocking portion 45 a is disposed on the back side with respect to the fixed shaft 47.
- the blocking part 45a includes a first blocking claw 45b as a first blocking part and a second blocking claw 45c as a second blocking part arranged on the front side of the first blocking claw 45b.
- the first blocking claw 45b and the second blocking claw 45c are formed in a triangular shape whose width becomes narrower toward the tip when viewed from the left-right direction.
- the angle of the tip of the first blocking claw 45b and the angle of the tip of the second blocking claw 45c are acute angles.
- the fan-shaped gear 24 is disposed on the back side of the lock member 23. Further, the fan-shaped gear 24 is disposed on the obliquely lower side of the gear 19. At the upper end of the fan-shaped gear 24, a plurality of teeth that engage with the lower end of the power transmission gear portion 19a of the gear 19 are formed.
- the lower end side of the fan-shaped gear 24 is rotatably held by a fixed shaft 50 fixed to the frame of the card lock mechanism 7.
- the fixed shaft 50 is disposed so that the axial direction thereof matches the left-right direction.
- the connecting lever 25 is formed in a linear shape. One end side of the connecting lever 25 is rotatably connected to the upper end side of the sector gear 24, and the other end side of the connecting lever 25 is rotatably connected to the back lower end side of the lock member 23.
- the lock member 23 has a contact position 23A (a position indicated by a two-dot chain line in FIG. 2) where the blocking portion 45a contacts the card 2 by the power transmitted from the power transmission gear portion 19a via the sector gear 24 and the connecting lever 25. And a retreat position 23B (a position indicated by a solid line in FIG. 2) where the blocking portion 45a retreats from the card transport path 6. That is, the lock member 23 can be rotated about the fixed shaft 47 between the contact position 23A and the retracted position 23B by the power transmitted from the power transmission gear portion 19a. When the lock member 23 is at the retracted position 23B, the blocking portion 45a is disposed above the card transport path 6 and does not come into contact with the card 2.
- the counterclockwise direction of the present embodiment is a first rotational direction that is the rotational direction of the rotation shaft 18, the gear 19, and the cam member 21 when the lock member 23 moves from the retracted position 23B toward the contact position 23A.
- a second rotation direction that is the rotation direction of the rotation shaft 18, the gear 19, and the cam member 21 when the lock member 23 moves from the contact position 23A toward the retracted position 23B.
- a micro switch 51 for detecting whether the lock member 23 is in the contact position 23A or the retracted position 23B by detecting the position of the fan gear 24 is disposed on the back side of the fan gear 24. ing.
- the blocking portion 45a includes the first blocking claw 45b and the second blocking claw 45c.
- the first blocking claw 45b is inclined so as to go to the back side as it goes down.
- the first blocking claw 45b is located on the back side so that the tip of the first blocking claw 45b formed in a triangular shape faces the bottom side.
- the second blocking claw 45c is inclined so as to go to the front side as it goes downward when the lock member 23 is in the contact position 23A.
- the second blocking claw 45c is moved to the front lower side so that the tip of the second blocking claw 45c formed in a triangular shape faces the front lower side. Protrusively.
- the tip of the first blocking claw 45b and the tip of the second blocking claw 45c are arranged below the center of the card transport path 6 in the vertical direction.
- the tip of the first blocking claw 45b and the tip of the second blocking claw 45c are the lower end of the lock member 23, and the first blocking claw The tip of the claw 45b and the tip of the second blocking claw 45c are arranged below the center of the card transport path 6 in the vertical direction.
- the first blocking claw 45 b and the second blocking claw 45 c are disposed slightly behind the fixed shaft 47. Therefore, when the lock member 23 at the contact position 23A starts to rotate toward the retracted position 23B, the first blocking claw 45b and the second blocking claw 45c (that is, the blocking portion 45a) move substantially rearward.
- a protruding portion 45d having a substantially triangular shape when viewed from the left-right direction is formed.
- the distance from the fixed shaft 47 to the protrusion 45d is shorter than the distance from the fixed shaft 47 to the first blocking claw 45b and the distance from the fixed shaft 47 to the second blocking claw 45c.
- the protrusion 45d is disposed on the front side and the upper side of the second blocking claw 45c.
- the front end surface 45e of the protrusion 45d is directed to the back side as it goes upward with respect to the YZ plane constituted by the left and right direction and the vertical direction. Slightly inclined.
- the front end face 45e is disposed on the far side of the lower end of the transport roller 10 disposed on the foremost side. Further, when the lock member 23 is at the contact position 23A, the front end face 45e is disposed at substantially the same position as the center position of the card transport path 6 in the vertical direction in the vertical direction.
- the front end surface 45e of this embodiment is a butting surface.
- FIG. 9 is a view for explaining a state after the lock member 23 shown in FIG. 3 has finished moving from the contact position 23A to the retracted position 23B.
- FIG. 10 is a view for explaining a state when the rotating shaft 18 and the cam member 21 are rotated counterclockwise from the state shown in FIG. 9 and the pin 32 comes into contact with the one end surface 19e of the engaging protrusion 19d. is there.
- FIG. 11 is a view for explaining a state when the rotating shaft 18, the gear 19 and the cam member 21 are rotated counterclockwise from the state shown in FIG. 10 and the projection 21 d of the cam member 21 contacts the stopper 37. It is.
- FIG. 10 is a view for explaining a state after the lock member 23 shown in FIG. 3 has finished moving from the contact position 23A to the retracted position 23B.
- FIG. 10 is a view for explaining a state when the rotating shaft 18 and the cam member 21 are rotated counterclockwise from the state shown in FIG. 9 and the pin 32 comes into contact with the
- FIG. 12 is a view for explaining a state when the rotary shaft 18 and the gear 19 are rotated counterclockwise from the state shown in FIG. 11 and the second blocking claw 45 c of the lock member 23 starts to contact the card 2.
- FIG. 13 is a view for explaining a state when the rotating shaft 18 and the gear 19 are rotated counterclockwise from the state shown in FIG. 12 and the lock member 23 reaches the contact position 23A.
- FIG. 14 is a view for explaining a state when the rotating shaft 18 and the cam member 21 are rotated clockwise from the state shown in FIG. 13 and the pin 32 comes into contact with the other end surface 19f of the engaging projection 19d.
- FIG. 15 is a view for explaining the state of the front end side of the card reader 1 when the blocking portion 45a shown in FIG. 3 prevents the card 2 from being pulled out.
- the ratchet gear portion 19b and the pawl member 22 constitute a rotation prevention mechanism that prevents the lock member 23 from rotating when the lock member 23 is at the contact position 23A.
- the second blocking claw 45c starts to contact the card 2 as shown in FIG. 12 (A).
- the rotating shaft 18 and the gear 19 further rotate counterclockwise and the lock member 23 reaches the contact position 23A as shown in FIG. 13, the motor 15 stops and the rotating shaft 18 and the gear 19 stop. To do.
- the pin 32 is in contact with the one end face 19e. That is, when the lock member 23 is at the contact position 23A, the pin 32 is in contact with the one end surface 19e.
- the gear 19 starts to rotate in the clockwise direction together with the rotary shaft 18.
- the sector gear 24 starts to rotate counterclockwise, and the lock member 23 starts to move from the contact position 23A toward the retracted position 23B.
- the rotating shaft 18, the gear 19, and the cam member 21 rotate clockwise until the lock member 23 reaches the retracted position 23B.
- the motor 15 stops and rotates. The shaft 18, the gear 19 and the cam member 21 are stopped.
- the tip of the first blocking claw 45b and the tip of the second blocking claw 45c are It is arranged below the center of the card transport path 6 in the vertical direction. Therefore, when the lock member 23 is in the contact position 23A (that is, when the first blocking claw 45b and the second blocking claw 45c are in contact with the card 2), as shown in FIG. 5 is pushed by the blocking portion 45a from the upper side, the pad roller 11 moves downward, and the portion of the card 2 arranged in the main body portion 5 is deformed downward.
- the front end surface 45e of the protrusion 45d of the lock plate 45 is disposed at substantially the same position as the center position of the card transport path 6 in the vertical direction when the lock member 23 is at the contact position 23A. Yes. Therefore, for example, as shown in FIG. 15, even when a criminal tries to apply a force 60 that pushes the lock member 23 to the back side using a foreign object, the force 60 due to the foreign object and the foreign object is caused by the front end face 45e. Be blocked.
- the blocking unit 45a prevents the card 2 from being pulled out from the card insertion slot 3. It becomes possible. As a result, in this embodiment, phishing can be reliably prevented.
- the torsion coil spring 38 is used for the power of the rotating shaft 18 until the protruding portion 21d comes into contact with the stopper 37 when the rotating shaft 18 rotates counterclockwise from the state where the lock member 23 is in the retracted position 23B. Is transmitted to the cam member 21, and when the protrusion 21 d comes into contact with the stopper 37, the transmission of the power of the rotating shaft 18 to the cam member 21 is blocked.
- the torsion coil spring 38 transmits the power of the rotating shaft 18 to the cam member 21 when the rotating shaft 18 rotates clockwise from the state where the lock member 23 is at the contact position 23A.
- the pin clutch 36 transmits the power of the rotating shaft 18 rotating in the counterclockwise direction to the gear 19 when the rotating shaft 18 rotates counterclockwise and the pin 32 contacts the one end surface 19e.
- the power of the rotating shaft 18 rotating in the clockwise direction is transmitted to the gear 19, and the end surface 19e and the other in the circumferential direction are transmitted.
- the ratchet gear portion 19b and the pawl member are moved before the movement of the lock member 23 from the retracted position 23B to the contact position 23A is completed without providing a separate drive source for driving the pawl member 22.
- the ratchet gear portion 19b and the pawl member 22 are engaged until the gear 19 starts to rotate clockwise. The state can be released. Therefore, in this embodiment, phishing can be reliably prevented with a relatively simple configuration.
- the phases of the three pawl members 22 and the ratchet teeth formed on the outer peripheral surface of the ratchet gear portion 19b are out of phase. Therefore, in this embodiment, the three pawl members 22 and the ratchet are compared with the case where the phases of the three pawl members 22 and the ratchet teeth formed on the outer peripheral surface of the ratchet gear portion 19b match. It is possible to reduce backlash between the gear portion 19b. Therefore, in this embodiment, it is possible to suppress rattling of the lock member 23 at the contact position 23A.
- the lock member 23 when the lock member 23 is at the contact position 23A, the lock member 23 is inclined toward the back side as it goes downward, and as it goes downward. And a second blocking claw 45c that inclines toward the front side. Therefore, even if the lock member 23 pushed by a foreign object inserted from the card insertion port 3 moves to the back side, the second blocking claw 45c is stuck in the card 2. Therefore, in this embodiment, it becomes possible to prevent the card 2 from being pulled out from the card insertion slot 3 after the lock member 23 is pushed to the back side. Further, when the criminal pulls the card 2 in contact with the blocking portion 45a to the front side, the first blocking claw 45b is stuck in the card 2, and in this case also, the card 2 is pulled out from the card insertion slot 3. Can be prevented. Therefore, in this embodiment, phishing can be reliably prevented with a relatively simple configuration in which the first blocking claw 45b and the second blocking claw 45c are provided.
- the front end surface 45e of the protrusion 45d of the lock plate 45 is disposed at substantially the same position as the center position of the card transport path 6 in the vertical direction when the lock member 23 is at the contact position 23A.
- the force 60 is Blocked by 45e.
- the distance from the fixed shaft 47 to the protrusion 45d is shorter than the distance from the fixed shaft 47 to the second blocking claw 45c, a force 60 due to a foreign object is applied to the second blocking claw 45c.
- FIG. 16 is a side view of a card lock mechanism 7 according to another embodiment of the present invention.
- 17 is a perspective view of the gear 19 and the pawl member 22 shown in FIG.
- FIG. 18 is a view for explaining the configuration of the ratchet gear portion 19b and the pawl member 22 shown in FIG.
- the modified examples of the card lock mechanism 7 shown in FIGS. 16 to 18 are characterized by the structure of the ratchet gear portion 19b and the pawl member 22. Therefore, hereinafter, the configuration of the card lock mechanism 7 according to the modified example will be described focusing on the configuration of the ratchet gear portion 19b and the configuration of the pawl member 22. 16 to 18, the same reference numerals are given to the same components as those of the above-described embodiment. In FIG. 16, the final gear 17 and the cam member 21 are not shown.
- the ratchet gear portion 19b is made of a metal material. That is, the gear 19 is made of a metal material.
- a plurality of ratchet teeth 19g are formed on the outer peripheral surface of the ratchet gear portion 19b at an equiangular pitch with respect to the rotation center of the ratchet gear portion 19b.
- the ratchet teeth 19g prevent the rotation of the gear 19 in the clockwise direction and enables the rotation of the gear 19 in the counterclockwise direction when the ratchet gear portion 19b and the pawl member 22 are engaged. It is formed as follows.
- the ratchet teeth 19g are formed in a substantially spiral shape that inclines clockwise as the distance from the rotation center of the ratchet gear portion 19b increases. That is, when viewed from the left-right direction, the inclination angle of the counterclockwise side surface (counterclockwise side surface) 19h of the ratchet tooth 19g with respect to the tangential direction of the tip circle of the ratchet gear portion 19b is the tooth angle of the ratchet gear portion 19b.
- the angle of inclination of the ratchet teeth 19g in the clockwise direction (clockwise side surface) 19j with respect to the tangential direction of the tip circle is gentler.
- the counterclockwise side surface 19h is formed in a convex curved surface shape
- the clockwise side surface 19j is formed in a concave curved surface shape.
- the clockwise side surface 19j is a contact surface that comes into contact with engaging portions 22c and 22d, which will be described later, formed on the pawl member 22.
- the card lock mechanism 7 includes two pawl members 22, and the cam member 21 is formed with two cam surfaces. Similarly to the above-described embodiment, the pawl member 22 is rotatably held on the holding shaft 41. The axes of the two holding shafts 41 are arranged on a virtual circle centered on the rotation center of the ratchet gear portion 19b.
- the pawl member 22 is formed of a resin material.
- the pawl member 22 includes two engaging portions 22c and 22d that can engage with the ratchet teeth 19g. Further, as shown in FIG. 17, the pawl member 22 includes a shaft insertion portion 22e through which the holding shaft 41 is inserted, a pawl portion 22f extending from the shaft insertion portion 22e in one direction orthogonal to the left-right direction, It is formed in a substantially straight rod shape including a counter balance portion 22g extending in a direction opposite to the direction in which the pawl portion 22f extends from the shaft insertion portion 22e.
- the engaging portions 22c and 22d are formed on the distal end side of the pawl portion 22f.
- the distance from the holding shaft 41 to the tip of the pawl portion 22f is substantially equal to the distance from the holding shaft 41 to the tip of the counterbalance portion 22g.
- the pawl member 22 is formed with a cam follower 22h that contacts the cam surface of the cam member 21.
- the pawl member 22 is urged counterclockwise around the holding shaft 41 by the torsion coil spring 42.
- the cam follower 22 h is in contact with the cam surface of the cam member 21 by the biasing force of the torsion coil spring 42. Further, the torsion coil spring 42 urges the pawl member 22 in the direction in which the ratchet teeth 19g and the engaging portion 22c are engaged.
- the angle between the shaft centers of the two holding shafts 41 with respect to the rotation center of the ratchet gear portion 19b is larger than the angle between the ratchet teeth 19g with respect to the rotation center of the ratchet gear portion 19b.
- a value other than an integral multiple of the angle between the ratchet teeth 19g with respect to the rotation center of the ratchet gear portion 19b is not completely engaged.
- the engaging portions 22c and 22d are formed in a claw shape projecting in one direction perpendicular to the longitudinal direction of the pawl member 22 formed in a substantially straight rod shape.
- the protruding amount of the engaging portion 22c is larger than the protruding amount of the engaging portion 22d.
- the engaging part 22c is disposed closer to the distal end side of the pawl part 22f than the engaging part 22d.
- the engaging portion 22d is not normally engaged with the ratchet teeth 19g when the ratchet gear portion 19b and the pawl member 22 are engaged.
- the engaging portion 22d when the engaging portion 22c and the ratchet teeth 19g are engaged, the rotational force in the clockwise direction acts on the gear 19, and the engaging portion 22c of the resin pawl member 22 is When it bends, it engages with the ratchet teeth 19g that are adjacent to the ratchet teeth 19g engaged with the engaging portion 22c in the clockwise direction.
- the engaging portion 22c is a first engaging portion
- the engaging portion 22d is a second engaging portion.
- the clockwise side surface 19j of the ratchet teeth 19g and the counterclockwise side surface (counterclockwise side surface) 22k of the engaging portion 22c come into contact with each other.
- the counterclockwise side surface 22k is a contact surface that contacts the ratchet teeth 19g.
- the counterclockwise side surface 22k is formed in a convex curved surface shape.
- the curvature of the clockwise side surface 19j that is the contact surface of the ratchet teeth 19g with the engaging portion 22c is substantially equal to the curvature of the counterclockwise side surface 22k that is the contact surface of the engaging portion 22c with the ratchet teeth 19g. ing. That is, the clockwise side surface 19j and the counterclockwise side surface 22k are formed into curved surfaces having substantially the same curvature.
- the ratchet gear portion 19b formed of a metal material and the pawl member 22 formed of a resin material are engaged with each other.
- the ratchet gear portion 19b and the pawl member 22 are engaged with each other, it is possible to prevent the ratchet gear portion 19b from being damaged.
- the pawl member 22 is formed of a resin material, the cost of the pawl member 22 can be reduced.
- the curvature of the clockwise side surface 19j that is the contact surface of the ratchet teeth 19g with the engaging portion 22c and the curvature of the counterclockwise side surface 22k that is the contact surface of the engaging portion 22c with the ratchet teeth 19g. are substantially equal to each other, the contact area between the ratchet teeth 19g and the engaging portion 22c can be increased. Therefore, even if the card reader 1 receives an impact when the ratchet teeth 19g and the engaging portion 22c are engaged, the engaged state between the ratchet teeth 19g and the engaging portion 22c is not easily released.
- the pawl member 22 includes a counter balance portion 22g extending in a direction opposite to the direction in which the pawl portion 22f extends from the shaft insertion portion 22e. Therefore, the holding shaft 41 is centered by the action of the counter balance portion 22g. Is less likely to occur in the pawl member 22. Therefore, even when the card reader 1 receives an impact when the ratchet teeth 19g and the engaging portion 22c are engaged, the pawl member 22 is difficult to rotate around the holding shaft 41, and as a result, the ratchet teeth 19g And the engagement portion 22c are not easily released.
- the pawl member 22 may not include the engaging portion 22d or the counter balance portion 22g.
- the pawl member 22 may be formed of a metal material.
- the curvature of the clockwise side surface 19j may be different from the curvature of the counterclockwise side surface 22k, and the clockwise side surface 19j and the counterclockwise side surface 22k may be formed in a planar shape. .
- the phases of the three pawl members 22 and the ratchet teeth formed on the outer peripheral surface of the ratchet gear portion 19b are out of phase.
- the phase of the three pawl members 22 and the phase of the ratchet teeth may coincide. That is, the angle between the axes of the holding shaft 41 with respect to the rotation center of the ratchet gear portion 19b may be an integral multiple of the angle between the ratchet teeth with respect to the rotation center of the ratchet gear portion 19b.
- the card lock mechanism 7 includes the three pawl members 22.
- the pawl member 22 included in the card lock mechanism 7 includes 2 pawl members 22. It may be an individual.
- the number of pawl members 22 included in the card lock mechanism 7 may be one, or four or more.
- the pin 32 is fixed to the rotating shaft 18 and the engaging projection 19d is formed on the gear 19.
- a pin corresponding to the pin 32 may be fixed or formed on the gear 19
- an engaging protrusion corresponding to the engaging protrusion 19 d may be fixed or formed on the rotating shaft 18.
- the torque limiter disposed between the rotating shaft 18 and the cam member 21 in the direction of transmission of power from the motor 15 is configured by the torsion coil spring 38.
- a torque limiter other than the acting torsion coil spring 38 may be disposed between the rotating shaft 18 and the cam member 21 in the transmission direction of the power from the motor 15.
- the blocking portion 45a is configured by the first blocking claw 45b and the second blocking claw 45c, but the blocking portion 45a may be configured by only the first blocking claw 45b.
- the protrusion 45 d is formed on the lock plate 45, but the protrusion 45 d may not be formed on the lock plate 45.
- the sleeve 34 is disposed on the outer peripheral side of the rotating shaft 18, but the sleeve 34 may not be disposed on the outer peripheral side of the rotating shaft 18.
- the lock member 23 is rotatably held by the fixed shaft 47 that is fixed to the frame of the card lock mechanism 7.
- the lock member 23 may be fixed to a rotation shaft that is rotatably held by the frame of the card lock mechanism 7. That is, the card lock mechanism 7 may include a rotation shaft that rotates together with the lock member 23 instead of the fixed shaft 47.
- the card lock mechanism 7 includes the ratchet gear portion 19b and the pawl member 22, but the card lock mechanism 7 may not include the ratchet gear portion 19b and the pawl member 22. Even in this case, the second blocking claw 45c is stuck in the card 2 when the lock member 23 is moved to the back side by a foreign object inserted by the criminal from the card insertion slot 3. Further, when the criminal pulls out the card 2 in a state where the blocking unit 45a is in contact with the front side, the first blocking claw 45b is stuck in the card 2. Therefore, phishing can be reliably prevented. In this case, the cam member 21, the pin clutch 36, and the torsion coil spring 38 are not necessary.
- the protrusion 45d is formed on the lock plate 45, but the protrusion 45d may not be formed on the lock plate 45.
- the sleeve 34 is disposed on the outer peripheral side of the rotating shaft 18, but the sleeve 34 may not be disposed on the outer peripheral side of the rotating shaft 18.
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Abstract
Description
図1は、本発明の実施の形態にかかるカードリーダ1の斜視図である。図2は、図1に示すカードリーダ1の前端側の構成を説明するための図である。
図3は、図2に示すカードロック機構7の斜視図である。図4は、図3に示す回転軸18、歯車19およびカム部材21等の平面図である。図5は、図4のE-E断面の断面図である。図6~図8は、図3に示す歯車19、カム部材21および歯止め部材22の構成を説明するための斜視図である。
図9は、図3に示すロック部材23が接触位置23Aから退避位置23Bへ移動し終わった後の状態を説明するための図である。図10は、図9に示す状態から回転軸18およびカム部材21が反時計方向に回転してピン32が係合突起19dの一端面19eに当接したときの状態を説明するための図である。図11は、図10に示す状態から回転軸18、歯車19およびカム部材21が反時計方向に回転してカム部材21の突起部21dがストッパ37に接触したときの状態を説明するための図である。図12は、図11に示す状態から回転軸18および歯車19が反時計方向に回転してロック部材23の第2阻止爪45cがカード2に接触し始めたときの状態を説明するための図である。図13は、図12に示す状態から回転軸18および歯車19が反時計方向に回転してロック部材23が接触位置23Aに到達したときの状態を説明するための図である。図14は、図13に示す状態から回転軸18およびカム部材21が時計方向に回転してピン32が係合突起19dの他端面19fに当接したときの状態を説明するための図である。図15は、図3に示す阻止部45aがカード2の引抜きを阻止しているときのカードリーダ1の前端側の状態を説明するための図である。
以上説明したように、本形態では、接触位置23Aにロック部材23があるときに、ラチェット歯車部19bと歯止め部材22とが係合し、時計方向への歯車19の回転が阻止されており、接触位置23Aから退避位置23Bに向かう方向へのロック部材23の移動が阻止されている。そのため、本形態では、犯罪者がカード挿入口3側から異物による力60を加えて接触位置23Aから退避位置23Bに向かう方向へロック部材23を移動させようとしても、ラチェット歯車部19bと歯止め部材22とが係合しているため阻止部45aが移動するのを阻止することが可能になる。したがって、本形態では、阻止部45aが接触しているカード2を犯罪者がカード挿入口3から引き抜こうとしても、阻止部45aの作用で、カード挿入口3からのカード2の引抜きを阻止することが可能になる。その結果、本形態では、フィッシングを確実に防止することが可能になる。
図16は、本発明の他の実施の形態にかかるカードロック機構7の側面図である。図17は、図16に示す歯車19および歯止め部材22の斜視図である。図18は、図17に示すラチェット歯車部19bおよび歯止め部材22の構成を説明するための図である。
上述した形態は、本発明の好適な形態の一例ではあるが、これに限定されるものではなく本発明の要旨を変更しない範囲において種々変形実施が可能である。
2 カード
3 カード挿入口
6 カード搬送路
7 カードロック機構
10 搬送ローラ
11 パッドローラ
15 モータ
18 回転軸
19 歯車
19a 動力伝達歯車部
19b ラチェット歯車部(回動阻止機構の一部)
19d 係合突起
19e 一端面(周方向における係合突起の一端)
19f 他端面(周方向における係合突起の他端)
19g ラチェット歯
19j 時計方向側面(ラチェット歯の第1係合部との接触面)
21 カム部材
21a~21c カム面
22 歯止め部材(回動阻止機構の一部)
22a、22h カムフォロア
22c 係合部(第1係合部)
22d 係合部(第2係合部)
22e 軸挿通部
22f 歯止め部
22g カウンターバランス部
22k 反時計方向側面(第1係合部のラチェット歯との接触面)
23 ロック部材
23A 接触位置
23B 退避位置
32 ピン
36 ピンクラッチ(クラッチ機構)
37 ストッパ
38 ネジリコイルバネ(トルクリミッタ)
41 保持軸
42 ネジリコイルバネ(付勢部材)
45a 阻止部
45b 第1阻止爪(第1阻止部)
45c 第2阻止爪(第2阻止部)
45e 前端面(突当て面)
47 固定軸
X1 第1方向
X2 第2方向
Y 第5方向
Z カードの厚み方向
Z1 第3方向
Z2 第4方向
Claims (11)
- カードが挿入されるとともに排出されるカード挿入口と、前記カード挿入口から挿入された前記カードが搬送されるカード搬送路と、前記カード搬送路で前記カードが異常停止して前記カード搬送路に前記カードが詰まったときに前記カード挿入口からの前記カードの引抜きを阻止するためのカードロック機構とを備え、
前記カードロック機構は、モータと、前記モータの動力で回転する回転軸と、動力伝達用の動力伝達歯車部と前記動力伝達歯車部と一体で回転するラチェット歯車部とを有し前記回転軸に相対回転可能に保持される歯車と、前記モータからの動力の伝達方向において前記回転軸と前記歯車との間に配置されるクラッチ機構と、前記ラチェット歯車部に係合して前記歯車の回転を阻止する歯止め部材と、前記歯止め部材に形成されるカムフォロアが接触するカム面が形成され前記ラチェット歯車部と前記歯止め部材とが係合する位置と前記ラチェット歯車部と前記歯止め部材との係合状態が解除される位置との間で前記歯止め部材を移動させるとともに前記回転軸に相対回転可能に保持されるカム部材と、前記モータからの動力の伝達方向において前記回転軸と前記カム部材との間に配置されるトルクリミッタと、前記カムフォロアが前記カム面に接触する方向へ前記歯止め部材を付勢する付勢部材と、前記カム部材の回転範囲を規制するストッパと、前記カードに接触して前記カードの引抜きを阻止する阻止部が形成されるとともに前記動力伝達歯車部から伝達される動力によって前記カードに前記阻止部が接触する接触位置と前記カード搬送路から前記阻止部が退避する退避位置との間で移動するロック部材とを備え、
前記退避位置から前記接触位置に向かって前記ロック部材が移動するときの前記回転軸、前記歯車および前記カム部材の回転方向を第1回転方向とし、前記接触位置から前記退避位置に向かって前記ロック部材が移動するときの前記回転軸、前記歯車および前記カム部材の回転方向を第2回転方向とすると、
前記退避位置に前記ロック部材がある状態から前記カム部材が前記第1回転方向へ回転するときに、前記カム部材が前記ストッパに接触して、前記カム部材の回転範囲が規制され、
前記トルクリミッタは、前記退避位置に前記ロック部材がある状態から前記モータの動力で前記第1回転方向へ前記回転軸が回転するときに、前記ストッパに前記カム部材が接触するまでは、前記回転軸の動力を前記カム部材に伝達するとともに、前記ストッパに前記カム部材が接触すると、前記回転軸の動力の前記カム部材への伝達を遮断し、前記接触位置に前記ロック部材がある状態から前記モータの動力で前記第2回転方向へ前記回転軸が回転するときに、前記回転軸の動力を前記カム部材に伝達し、
前記クラッチ機構は、前記回転軸および前記歯車のいずれか一方に前記回転軸および前記歯車の径方向を軸方向として固定または形成されるピンと、前記回転軸および前記歯車のいずれか他方に固定または形成されるとともに前記ピンが前記回転軸および前記歯車の周方向における両端に係合可能な係合突起とを備えるピンクラッチであり、
前記クラッチ機構は、前記モータの動力で前記第1回転方向へ前記回転軸が回転して前記周方向における前記係合突起の一端に前記ピンが当接すると、前記第1回転方向へ回転する前記回転軸の動力を前記歯車に伝達し、前記モータの動力で前記第2回転方向へ前記回転軸が回転して前記周方向における前記係合突起の他端に前記ピンが当接すると、前記第2回転方向へ回転する前記回転軸の動力を前記歯車に伝達するとともに、前記周方向における前記係合突起の一端と前記係合突起の他端との間を前記ピンが移動するように前記モータの動力で前記回転軸が回転するときには、前記回転軸の動力の前記歯車への伝達を遮断し、
前記ラチェット歯車部と前記歯止め部材とが係合しているときに、前記第2回転方向への前記歯車の回転が阻止されて、前記接触位置から前記退避位置に向かう方向への前記ロック部材の移動が阻止され、
前記退避位置に前記ロック部材があるときには、前記ラチェット歯車部と前記歯止め部材との係合状態が解除され、前記接触位置に前記ロック部材があるときには、前記ラチェット歯車部と前記歯止め部材とが係合し、
前記退避位置に前記ロック部材がある状態から前記第1回転方向へ前記回転軸が回転し前記ストッパに前記カム部材が接触して前記カム部材が停止したときには、前記ラチェット歯車部と前記歯止め部材とが係合しており、
前記接触位置に前記ロック部材がある状態から前記第2回転方向へ前記回転軸が回転すると、前記周方向における前記係合突起の一端に当接していた前記ピンが前記周方向における前記係合突起の他端に当接して前記第2回転方向へ前記歯車が回転し始めるまでの間に、前記ラチェット歯車部と前記歯止め部材との係合状態が解除されることを特徴とするカードリーダ。 - 前記回転軸と前記カム部材と前記歯車とは、同軸上に配置されていることを特徴とする請求項1記載のカードリーダ。
- 前記トルクリミッタは、ネジリコイルバネを備え、
前記回転軸は、前記ネジリコイルバネの内周側に挿通され、
前記ネジリコイルバネの一端は、前記カム部材の内周側に係合していることを特徴とする請求項2記載のカードリーダ。 - 前記カードロック機構は、複数の前記歯止め部材と、複数の前記歯止め部材のそれぞれを回動可能に保持する複数の保持軸とを備え、
前記ラチェット歯車部の外周面には、複数のラチェット歯が前記ラチェット歯車部の回転中心に対して等角度ピッチで形成され、
複数の前記保持軸の軸心は、前記ラチェット歯車部の回転中心を中心とする仮想円上に配置されるとともに、前記ラチェット歯車部の回転中心に対して等角度ピッチで配置され、
前記ラチェット歯車部の回転中心に対する前記保持軸の軸心間の角度は、前記ラチェット歯車部の回転中心に対する前記ラチェット歯間の角度よりも大きく、かつ、前記ラチェット歯車部の回転中心に対する前記ラチェット歯間の角度の整数倍以外の値となっていることを特徴とする請求項1から3のいずれかに記載のカードリーダ。 - 前記ラチェット歯車部は、金属材料で形成され、
前記歯止め部材は、樹脂材料で形成され、
前記ラチェット歯車部の外周面には、複数のラチェット歯が形成され、
前記歯止め部材は、前記ラチェット歯と係合可能な複数の係合部を備えるとともに、前記係合部として、前記ラチェット歯車部と前記歯止め部材とが係合しているときに前記ラチェット歯と係合する第1係合部と、前記ラチェット歯と前記第1係合部とが係合しているときに前記第2回転方向への回転力が前記歯車に作用して前記第1係合部が撓むと前記ラチェット歯と係合する第2係合部とを備えることを特徴とする請求項1から4のいずれかに記載のカードリーダ。 - 前記ラチェット歯車部の外周面には、複数のラチェット歯が形成され、
前記歯止め部材は、前記ラチェット歯に接触して前記ラチェット歯と係合可能な第1係合部を備え、
前記ラチェット歯の前記第1係合部との接触面、および、前記第1係合部の前記ラチェット歯との接触面は、曲率の略等しい曲面状に形成されていることを特徴とする請求項1から5のいずれかに記載のカードリーダ。 - 前記カードロック機構は、前記歯止め部材を回動可能に保持する保持軸を備え、
前記ラチェット歯車部の外周面には、複数のラチェット歯が形成され、
前記歯止め部材は、前記保持軸が挿通される軸挿通部と、前記ラチェット歯と係合可能な第1係合部が先端側に形成されるとともに前記軸挿通部から前記保持軸の軸方向に直交する方向のうちの一方向へ伸びる歯止め部と、前記軸挿通部から前記歯止め部が伸びる方向と反対方向へ伸びるカウンターバランス部とを備えることを特徴とする請求項1から6のいずれかに記載のカードリーダ。 - カードが挿入されるとともに排出されるカード挿入口と、前記カード挿入口から挿入された前記カードが搬送されるカード搬送路と、前記カード搬送路で前記カードが異常停止して前記カード搬送路に前記カードが詰まったときに前記カード挿入口からの前記カードの引抜きを阻止するためのカードロック機構とを備え、
前記カードの挿入方向を第1方向とし、前記カードの排出方向を第2方向とし、前記カード搬送路で搬送される前記カードの厚み方向の一方を第3方向とし、前記カードの厚み方向の他方を第4方向とし、前記第1方向と前記第3方向とに直交する方向を第5方向とすると、
前記カードロック機構は、前記カードに接触して前記カードの引抜きを阻止する阻止部が形成されるロック部材と、前記ロック部材を回動可能に保持する固定軸または前記ロック部材と一緒に回動する回動軸とを備え、
前記ロック部材は、前記カード搬送路よりも前記第3方向側に配置され、
前記固定軸または前記回動軸は、その軸方向が前記第5方向と一致するように配置されるとともに前記阻止部よりも前記第3方向側かつ前記第2方向側に配置され、
前記ロック部材は、前記カードに前記阻止部が接触する接触位置と前記カード搬送路から前記阻止部が退避する退避位置との間で前記固定軸または前記回動軸を中心に回動可能となっており、
前記接触位置にある前記ロック部材が前記退避位置に向かって回動し始めるときには、前記阻止部は、略前記第1方向へ移動し、
前記阻止部は、前記ロック部材が前記接触位置にあるときに、前記第4方向側に向かうにしたがって前記第1方向側に向かうように傾斜する第1阻止部と、前記第1阻止部よりも前記第2方向側に配置され、前記第4方向側に向かうにしたがって前記第2方向側に向かうように傾斜する第2阻止部とを備えることを特徴とするカードリーダ。 - 前記カードに当接して前記カードを搬送する搬送ローラと、前記カードの厚み方向で前記搬送ローラに対向配置されるとともに前記搬送ローラに向かって付勢されるパッドローラとを備え、
前記搬送ローラは、前記第3方向側から前記カード搬送路に臨むように配置され、
前記パッドローラは、前記第4方向側から前記カード搬送路に臨むように配置され、
前記カードの厚み方向において、前記搬送ローラの前記第4方向端と、前記カードの厚み方向における前記カード搬送路の中心位置とが略一致しており、
前記パッドローラは、前記第2阻止部が前記カードに接触すると、前記第4方向へ移動し、
前記ロック部材が前記接触位置にあるときに、前記第1阻止部の前記第4方向端および前記第2阻止部の前記第4方向端は、前記カードの厚み方向における前記カード搬送路の中心位置よりも前記第4方向側に配置され、
前記ロック部材には、前記ロック部材が前記接触位置にあるときに、前記第2阻止部よりも前記第2方向側かつ前記第3方向側に配置されるとともに、前記カードの厚み方向において前記カード搬送路の中心位置と略同じ位置に配置される突当て面が形成され、
前記固定軸または前記回動軸から前記突当て面までの距離は、前記固定軸または前記回動軸から前記第2阻止部までの距離よりも短くなっていることを特徴とする請求項8記載のカードリーダ。 - 前記第1阻止部および前記第2阻止部は、前記第5方向から見たときに先端側に向かうにしたがってその幅が狭くなる三角形状に形成されていることを特徴とする請求項8または9記載のカードリーダ。
- 前記接触位置にあるときの前記ロック部材の回動を阻止する回動阻止機構を備えていることを特徴とする請求項8から10のいずれかに記載のカードリーダ。
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- 2014-04-03 WO PCT/JP2014/059833 patent/WO2015064124A1/ja active Application Filing
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CN106251472B (zh) * | 2015-06-03 | 2019-05-21 | 日本电产三协株式会社 | 读卡器以及卡片锁定机构 |
Also Published As
Publication number | Publication date |
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CN105229674A (zh) | 2016-01-06 |
US9489547B2 (en) | 2016-11-08 |
JPWO2015064124A1 (ja) | 2017-03-09 |
CN105229674B (zh) | 2018-01-09 |
US20160232384A1 (en) | 2016-08-11 |
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