JP2018147922A - card reader - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a card reader which prevents a front case body from falling relative to a rear case body.SOLUTION: A card reader 1 has a body part 10 installed on an outer wall surface of a door which is locked or unlocked by an electric lock. The body part 10 has a card reading part 20 which reads information recorded in a card medium on a front surface. The body part 10 has: a front case body 11 having the card reading part 20; and a rear case body 12 attached to the wall surface. The front case body 11 has: a hook part 32 which hooks on the rear case body 12; and an engagement claw part 33 which engages with the rear case body 12. Further, the front case body 11 also has a screw insertion part 34b, into which a fixing screw 13 for fixing to the rear case body 12 is inserted, on a lower surface.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a card reader provided in an entry / exit management system that reads information on a card medium and unlocks an electric lock.

  In an office building or the like, an entrance / exit management system using a card reader and an electric lock is installed. The entrance / exit management system is installed, for example, to manage entrance / exit of each conference room when a plurality of conference rooms are arranged on the floor. In this case, a card reader is installed for each entrance of the conference room, and the card reader is connected to a local control panel installed for each floor of the building. The card reader is connected to an electric lock provided on the door of the conference room. The local control panel is connected to a client apparatus installed in a management department such as a center apparatus installed in a security room or the general affairs department via a transmission line.

  The user who enters and exits the conference room carries a non-contact IC card in which user identification information is registered, for example, and the user identification information is read and sent to the local control panel by holding the non-contact IC card over a card reader. When the collation with the user identification information pre-registered in the local control panel is obtained, the electric lock is unlocked and the door can be opened to enter and exit. For example, Patent Document 1 discloses a card reader that unlocks an electric lock by holding a non-contact IC card.

JP 2009-294886 A

  In the card reader, a main body portion having a card reading portion on the front surface is embedded in a wall surface. The main body is formed by integrating a front case body having a card reading section and a rear case body embedded in a wall surface. A circuit board having an antenna coil for communicating with a card medium, a capacitance switch sheet for functioning as a touch switch, etc. are fixed to the back side of the front case body, and the main body is integrated. It is stored in the rear case body.

  When installing the card reader, because it is necessary to perform predetermined setting work, the rear case body with the front case body removed is first attached to the wall surface and integrated with the front case body After performing a setting operation or the like using the circuit board or the like, the front case body is attached to the rear case body. In addition, after the card reader is installed, the front case body is removed when maintenance or setting is changed, and the front case body is attached to the rear case body again after the work.

  The front case body and the rear case body are fixed by screws. At the time of installation and maintenance, since the rear case body is fixed to the wall surface, the front case body is positioned with respect to the rear case body and then screwed. At this time, the front case body may be tilted and the position relative to the rear case body may be shifted or a fixing screw may be dropped, so that the workability cannot be said to be good. In addition, there is a possibility that the front case body may drop due to the screw loosening after fixing.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a card reader that prevents the front case body from falling with respect to the rear case body.

In order to solve the above-mentioned problem, a card reader according to the invention of claim 1 has a main body portion installed on the outer wall surface of the door locked and unlocked by an electric lock, and the main body portion is recorded on a card medium. A card reader having a card reader on the front for reading the received information,
The main body has a front case body having the card reading unit, and a rear case body attached to a wall surface,
The front case body has a hook portion for the rear case body and an engaging claw portion that engages with the rear case body, and a screw through which a fixing screw for the rear case body is inserted on the lower surface. It is characterized by having an insertion part.

  According to the first aspect of the present invention, when the front case body and the rear case body are fixed, the front case body is temporarily fixed to the rear case body by the hook portion and the engaging claw portion, and the state Therefore, it is possible to prevent the front case body from being dropped or displaced during fixing.

  In the card reader according to a second aspect of the present invention, the rear case body has a screw holding portion through which the fixing screw can be inserted, and the fixing screw has a tip portion inserted in the screw holding portion. The screw holding portion is larger in diameter than the screw holding portion.

  According to the second aspect of the invention, since the fixing screw is held by the rear case body, it is possible to simplify the screwing operation and to prevent the fixing screw from dropping when the fixing screw is attached or detached.

  Furthermore, the card reader according to the invention of claim 3 is characterized in that a tip end portion of the fixing screw held by the screw holding portion is crushed.

  According to the invention which concerns on Claim 3, after inserting a fixing screw in a screw holding part, the front-end | tip part of a fixing screw can be easily processed into large diameter shape.

  Furthermore, in the card reader according to the invention of claim 4, the hooking portion is disposed on an upper portion of the front case body, and the engaging claw portion is disposed on a side portion of the front case body. It is configured as a feature.

  According to the invention which concerns on Claim 4, a front case body is hooked from the upper part with respect to a rear case body, and both can be temporarily fixed by engaging both sides, and temporary fixing work can be made easy. .

  And the card reader which concerns on invention of Claim 5 has a display part in which the said main-body part had a light-emitting body, and the said rear case body generate | occur | produces an on-off signal according to the distance with the said front case body. It has a distance detection switch, and when the distance detection switch detects that the front case body is at a predetermined distance from the rear case body, the display section performs a predetermined display. .

  According to the invention which concerns on Claim 5, it can visually confirm that the front case body was correctly fixed with respect to the rear case body.

  Further, the card reader according to the invention of claim 6 is characterized in that the rear case body is formed in a box shape whose front side is open, and has a nameplate portion on the inner and outer surfaces of the box shape. .

  According to the invention which concerns on Claim 6, necessary information, such as a model and a manufacturing number, can be confirmed in any before and after installation of a card reader.

  According to the card reader according to the present invention, the front case body can be prevented from falling with respect to the rear case body, and the fixing operation of both can be facilitated.

It is the perspective view seen from the front side of the card reader of this embodiment. It is a front view of a card reader. It is a disassembled perspective view of a card reader. It is a rear view of a front case body. It is a front view of a rear case body. It is a rear view of a rear case body. It is a longitudinal cross-sectional view of the state which integrated the front case body and the rear case body. It is a cross-sectional view of a state in which the front case body and the rear case body are integrated. It is sectional drawing of the left side from a centerline among the AA cross sections of FIG. It is a block diagram of an entrance / exit management system including a card reader. It is a front view of the display sheet of another form.

  Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of the card reader 1 according to the present embodiment as viewed from the front side, FIG. 2 is a front view of the card reader 1, and FIG. 3 is an exploded perspective view of the card reader 1. . The card reader 1 of this embodiment has a case-shaped main body 10. The main body 10 has a card reading unit 20 on the front for reading information on a card medium carried by the user.

  The main body 10 is formed by integrating a front case body 11 on the front side and a rear case body 12 on the back side, and a display sheet 54 is provided on the front surface of the front case body 11. The rear case body 12 is attached to the wall surface of the building. The front case body 11 has a card reading unit 20 that is a part that holds a card medium and a front display unit 22 having translucency provided so as to surround the periphery of the card reading unit 20. When the card reader 1 is attached to the wall surface of the building, the front case body 11 of the main body 10 is exposed, and the rear case body 12 is embedded in the wall surface.

  Around the card reading unit 20, a substantially U-shaped front display unit 22 is provided vertically. The display sheet 54 has a translucent region in the shape of the front display unit 22, and a light guide 52 disposed so as to face the region inside the main body 10, and the light guide 52 And an LED for projecting light. The front display unit 22 displays the locking state of the electric lock, the reading state of the card medium, and the like by color, lighting / flashing state.

  Side display portions 21 are provided on both upper sides of the front case body 11. The side display part 21 has LED corresponding to each, The display by light emission can be visually recognized from the front direction of the card reader 1, or a side surface direction. The LEDs of the side display unit 21 have three primary color LEDs, and any color can be generated by the combination thereof. The side display unit 21 displays the status display and warnings of the card reader 1 such as a warning mode and a warning release mode by color, lighting / flashing state.

  As shown in FIG. 3, the rear case body 12 includes a box-shaped portion 12a that opens to the front side so that a substrate and the like can be accommodated, and a mounting surface portion 12b that is formed to spread outward from the opening of the box-shaped portion 12a. And have. The front case body 11 includes a front surface portion 11a having a card reading unit 20 and a side surface portion 11b extending from the edge portion to the back surface side over four circumferences. The front surface portion 11a is formed with a recess 11c for receiving the display sheet 54.

  A circuit board 50, a light guide 52, and a capacitance switch sheet 53 are fixed to the back side of the front case body 11. In the circuit board 50, the RF board 50a and the CPU board 50b are stacked in two stages by a spacer. An antenna coil 50c is disposed on the RF substrate 50a, and information on the card medium can be read by the antenna coil 50c and a reading circuit mounted on the substrate. On the RF substrate 50 a, an LED that is a light emitter for performing display from the side display unit 21 of the main body unit 10 and an LED that projects light onto the light guide 52 are disposed. In addition, a Hall IC constituting a tamper switch is disposed on the CPU board 50b.

  The light guides 52 are vertically separated and each has a substantially U-shaped shape. The light guide 52 has a shape corresponding to the front display unit 22 of the front case body 11 and is disposed so as to face the front display unit 22. Light from the LED disposed on the RF substrate 50a is incident on the light guide 52, and the light is emitted to the front side while being diffused throughout. For this reason, the light from the LED is evenly emitted from the entire front display unit 22. The front display unit 22 displays the locking state of the electric lock, the reading state of the card medium, and the like by color, lighting / flashing state.

  On the capacitance switch sheet 53, capacitance switches indicated by broken lines are arranged. The capacitance switch is any one of a warning setting switch 53a, a warning release switch 53b, and a numeric key switch 53c. These electrostatic capacitance switches change the electrostatic capacitance even if they do not directly contact the fingertips by touching the parts of the card reading unit 20 of the front case body 11 facing each other. Switch signal.

  A thin sheet-like display sheet 54 is bonded and fixed to the recess 11 c of the front case body 11. The display sheet 54 has a warning setting switch symbol 54a at a position corresponding to the warning setting switch 53a of the capacitance switch sheet 53, and a warning release switch symbol 54b at a position corresponding to the warning release switch 53b of the capacitance switch sheet 53. Are displayed. A card reading symbol 54 c is displayed at the center of the display sheet 54. Further, the display sheet 54 has a surface transmission part 54 d that becomes the front display part 22 by being attached to the front case body 11. The surface transmitting portion 54d is formed to face the light guide 52.

  The front case body 11 and the rear case body 12 are fixed to the rear case body 12 by fixing screws 13 inserted from below. The fixing structure will be described below.

  FIG. 4 shows a rear view of the front case body 11. As shown in this figure, a hook portion 32 is formed on the upper side of the front case body 11 on the back side. The hook portion 32 is formed in a protruding shape that can be hooked with respect to the upper side of the rear case body 12. Engagement claw portions 33 projecting inward are formed at the center of both sides of the front case body 11. The engaging claw portion 33 can be engaged with the rear case body 12.

  A bottom recess 34 through which the fixing screw 13 can be inserted and fixed is formed in the lower portion of the front case body 11. The bottom recess 34 is concave from the lower surface of the front case body 11 and can accommodate the head 13a of the fixing screw 13 so as not to be exposed to the outside. The bottom of the bottom recess 34 is a fixing surface 34a to which the head 13a of the fixing screw 13 is fixed, and a screw insertion for inserting the fixing screw 13 with the rear case body 12 attached is inserted into the fixing surface 34a. A portion 34b is further formed.

  FIG. 5 shows a front view of the rear case body 12, and FIG. 6 shows a rear view of the rear case body 12. As shown in FIG. 5, a screw holding portion 43 that holds the fixing screw 13 is formed in the lower portion of the rear case body 12. The screw holding portion 43 has a thread on the inner surface so that the screw portion of the fixing screw 13 can be screwed together. A space is formed in the upper portion of the screw holding portion 43, and the distal end portion of the fixing screw 13 is disposed in this space. The distal end portion of the fixing screw 13 is crushed after insertion to form a large diameter portion 13 b having a larger diameter than the screw holding portion 43. For this reason, the fixing screw 13 does not fall off from the rear case body 12.

  As shown in FIG. 6, on the back side of the rear case body 12, a hook recess 41 that can hook the hook portion 32 of the front case body 11 is formed on the upper side. Further, on both sides of the rear case body 12, engagement concave portions 42 are formed that can engage the engagement claws 33 of the front case body 11.

  In FIG. 7, the longitudinal cross-sectional view of the state which integrated the front case body 11 and the rear case body 12 is shown. As shown in this figure, the hook portion 32 of the front case body 11 is hooked and engaged with the hook recess 41 of the rear case body 12 from above. The fixing screw 13 has the head portion 13a pressed against the fixing surface 34a of the front case body 11, and fixes the front case body 11 and the rear case body 12.

  The hook portion 32 of the front case body 11 has a cross-sectional shape having a thickness. When the front case body 11 and the rear case body 12 are integrated, a large force is applied to the hook portion 32. However, since the hook portion 32 has a thickness, it can be prevented from being damaged. .

  The hook 32 has a rectangular cross section with the same thickness on the root side, and a trapezoidal cross section with a gradually decreasing thickness on the tip side. For this reason, the hook part 32 has the inclined surface 32a in the front-end | tip part. In the hook recess 41 of the rear case body 12, the surface with which the inclined surface 32a of the hook portion 32 contacts is an inclined fixed surface 41a. The inclined surface 32a of the hook portion 32 and the fixed surface 41a of the hook recess 41 have the same angle.

  In FIG. 8, the cross-sectional view of the state which integrated the front case body 11 and the rear case body 12 is shown. As shown in this figure, the engaging claw portion 33 of the front case body 11 is engaged with the engaging concave portion 42 of the rear case body 12 from the outside.

  When attaching the front case body 11 to the rear case body 12 attached to the wall surface, first, the front case body 11 is placed in an inclined state with the lower side pulled forward, and the front case body 11 is The hook portion 32 is hooked from the upper front obliquely with respect to the hook recess 41 of the rear case body 12. Then, the front case body 11 is rotated to engage them. As described above, since the inclined surface 32a of the hook portion 32 and the fixing surface 41a of the hook recess 41 have the same angle, the front case body 11 is stopped at a predetermined angle when the front case body 11 is rotationally engaged with the rear case body 12. And easy to install. Simultaneously with the rotation engagement of the front case body 11, the engagement claw portions 33 on both sides of the front case body 11 are engaged with the engagement recesses 42 of the rear case body 12, respectively. At this time, the fixing screw 13 provided in the rear case body 12 is inserted into a screw insertion portion 34 b formed in the bottom surface recess 34 of the front case body 11. Thereby, the front case body 11 will be in the state temporarily fixed with respect to the rear case body 12, and it can prevent the front case body 11 from falling. Then, the front case body 11 and the rear case body 12 can be firmly fixed by tightening the fixing screw 13.

  When the fixing screw 13 is loosened in order to remove the front case body 11 from the rear case body 12, the front end portion of the fixing screw 13 is crushed into a large-diameter portion 13b. The body 12 can be prevented from falling.

  Thus, since the front case body 11 has the hook part 32 and the engaging claw part 33, and these can be temporarily fixed before screwing with respect to the rear case body 12, the front case body 11 is attached to the rear case. When fixing with respect to the body 12, position shift and fall can be prevented. In particular, since the circuit board 50, the capacitance switch sheet 53, and the like are attached to the front case body 11, the weight of the front case body 11 is large, and therefore the front case body 11 is replaced with the rear case body 12. By being able to temporarily fix to, the ease of the operation | work which integrates both can be improved.

  Further, the engaging state of the engaging claw 33 of the front case body 11 and the engaging recess 42 of the rear case body 12 is such that the front case body 11 can move slightly with respect to the rear case body 12. It has become loose. Thereby, when removing the front case body 11 from the rear case body 12, a tool can be inserted in the bottom part etc. of the front case body 11, and the removal operation | work of the front case body 11 can be made easy.

  The two-layer structure of the front case body 11 will be described. FIG. 9 shows a cross-sectional view on the left side of the center line in the AA cross section of FIG. As shown in this figure, the front case body 11 includes a non-light-transmitting layer portion 30 provided on the inner surface side from the side portion to the front edge portion, and a light-transmitting layer portion 31 constituting the entire outer surface of the side portion and the front surface. And have. The non-light transmissive layer part 30 is a colored resin material and does not transmit light. On the other hand, the translucent layer part 31 is a transparent resin material and transmits light. The front case body 11 is formed by two-color molding.

  In the front case body 11, a region facing the light guide 52 and a region on the inner peripheral side thereof are formed only by the light transmissive layer portion 31, and this portion transmits light that transmits light from the light guide 52. Part 37. In the front case body 11, portions other than the transmission portion 37 do not transmit light from the light guide 52 because of the non-light transmission layer portion 30.

  Thus, the front case body 11 has a two-layer structure of the non-translucent layer portion 30 and the translucent layer portion 31, and the region facing the light guide 52 is the transmissive portion 37 of only the translucent layer portion 31. Accordingly, the display sheet 54 can be provided on the front surface side of the front case body 11. As described above, in the display sheet 54, the area facing the light guide 52 is a surface transmitting portion 54 d that transmits light, and light can be transmitted to the front side according to the shape of the light guide 52. .

  In addition, since the area inside the area facing the light guide 52 of the front case body 11 is also the transmission part 37, when the assembly operator attaches the display sheet 54, a capacitance switch is provided in the main body part 10. Whether the sheet 53 is provided and the type of the capacitance switch sheet 53 can be visually confirmed. For this reason, it can be confirmed at a glance whether or not the display sheet 54 corresponds to the capacitance switch sheet 53 in the main body 10, and an assembly error can be prevented. Further, since the side of the light guide 52 is formed by the non-transmissive layer portion 30, it is possible to collect the light from the LED on the light guide 52 without reflecting light to the outside.

  Since the display sheet 54 is provided on the front surface side of the front case body 11, the display sheet 54 can be viewed from the outer surface side of the front case body 11 when the function of the switch by the capacitance switch sheet 53 is changed. It is not necessary to disassemble the main body 10. Further, since the front case body 11 has a two-layer structure of the non-light-transmitting layer part 30 and the light-transmitting layer part 31, the front case body 11 exposed to the front side can be shown in three dimensions, and the design property Can be improved.

  As shown in FIG. 3, the rear case body 12 is provided with an inner nameplate portion 45 on which the type, serial number, etc. are written inside the box-shaped portion 12 a. Further, the rear case body 12 is provided with an outer nameplate portion 46 on the outer surface of which a model number, a serial number, etc. are written. The model, serial number, and the like are confirmed by the outer nameplate 46 during manufacture or transportation of the card reader 1 and until it is attached to the wall of the building. When the card reader 1 is attached to the wall surface, the rear case body 12 is embedded in the wall surface, so that the outer nameplate portion 46 cannot be visually recognized. In this case, the model name, serial number, and the like are confirmed by the inner nameplate portion 45. As described above, by providing the inner nameplate portion 45 and the outer nameplate portion 46 in the rear case body 12, necessary information such as the model and serial number can be confirmed both before and after the card reader 1 is installed.

  A magnet 56 is provided on the bottom of the box-shaped portion 12a of the rear case body 12 corresponding to the Hall IC provided on the CPU substrate 50b. The hall IC and magnet 56 constitute a tamper switch. In a normal state, the Hall IC detects the magnetic field of the magnet 56 and the tamper switch is off. When the front case body 11 is pry open by a suspicious person or the like and the distance between the Hall IC and the magnet 56 increases, the magnetic field of the magnet 56 is not detected by the Hall IC, and accordingly, the tamper switch is turned on. . When the tamper switch is turned on, the card reader 1 issues a predetermined alarm.

  When the card reader 1 is installed, as described above, the front case body 11 is temporarily fixed to the rear case body 12 embedded and fixed on the wall surface, and then fixed by the fixing screws 13. . At this time, the front case body 11 is correctly fixed at a predetermined position with respect to the rear case body 12, and the distance between the Hall IC on the front case body 11 side and the magnet 56 on the rear case body 12 side is within a normal range. Then, the side display unit 21 performs a predetermined display. Thereby, it can be visually confirmed that the front case body 11 is correctly fixed to the rear case body 12.

  In FIG. 10, the block diagram of the entrance / exit management system containing the card reader 1 is shown. As shown in this figure, in the entrance / exit management system, a plurality of local control boards 41 are connected to the center apparatus 40, and a plurality of card readers 1 are connected to the local control board 41. An electric lock 42 is connected to each card reader 1. The center device 40 is also connected with a disaster prevention receiving board 45 that constitutes a disaster prevention system.

  The card reader 1 reads the information on the card medium, compares it with information registered in advance, and transmits a signal indicating the establishment of authentication to the local control panel 41 when the authentication is established. When the local control panel 41 receives an authentication establishment signal, the local control panel 41 transmits information on entering and leaving the room to the center device 40 and controls the unlocking of the electric lock 42.

  When the center device 40 receives the alarm information about the occurrence of a fire from the disaster prevention reception board 45, the center apparatus 40 performs light emission control of the card reader 1 through the local control board 41. When a fire occurs, the side display unit 21 flashes in a predetermined light emission, for example, red, at the time of the fire. The predetermined light emission at the time of the fire occurrence is different from the light emission of the side display unit 21 at the normal time.

  The card reader 1 can switch between a warning release mode in which the electric lock 42 can be locked and unlocked by a card medium, and a warning mode in which the electric lock 42 is locked and cannot be unlocked. The alert mode is set, for example, at night or on holidays when no person enters or exits. In the alert release mode, the card reader 1 always causes the front display unit 22 to emit light. On the other hand, in the alert mode, the card reader 1 turns off the front display unit 22. Thereby, power consumption can be suppressed.

  The switch function by the capacitance switch sheet 53 can be changed as necessary. In FIG. 11, the front view of the display sheet 55 of another form is shown. The display sheet 54 shown in FIG. 3 displays a warning setting switch symbol 54a, a warning release switch symbol 54b, and a card reading symbol 54c, and the capacitance switch sheet 53 functions as a warning setting switch 53a and a warning release switch 53b. Is configured to do. In addition to this, the ten-key switch 53c of the capacitance switch sheet 53 can be configured to function. The numeric keypad 53c can be used for inputting a personal identification number. In this case, the display sheet 55 shown in FIG. 11 is used.

  On the display sheet 55, a warning setting switch symbol 54a, a warning release switch symbol 54b, and a numeric keypad symbol 55c are displayed, and a surface transmitting portion 55d is formed in the periphery thereof. When the card reader 1 is set to use the numeric keypad 53c, the display sheet 55 having the numeric keypad symbol 55c is attached to the card reading unit 20 of the main body unit 10 from the beginning. When the function of the numeric keypad 53c is added after the card reader 1 is installed, the setting of the card reader 1 is changed, and the display sheet 54 having no numeric key symbol is replaced with the display sheet 55 having the numeric key symbol 55c. It is done. As described above, since the display sheet 54 can be replaced from the outer surface side of the front case body 11, the replacement work can be facilitated.

  Although the embodiment of the present invention has been described above, the application of the present invention is not limited to this embodiment, and can be applied in various ways within the scope of its technical idea.

DESCRIPTION OF SYMBOLS 1 Card reader 10 Main part 11 Front case body 12 Rear case body 13 Fixing screw 20 Card reading part 21 Side part display part 22 Front display part 30 Non-translucent layer part 31 Translucent layer part 32 Hook part 33 Engaging claw part 34 Bottom concave portion 37 Transmitting portion 40 Storage portion 41 Hooking concave portion 42 Engaging concave portion 43 Screw holding portion 45 Inner nameplate portion 46 Outer nameplate portion 50 Circuit board 51 Light emitting portion 52 Light guide 53 Capacitance switch sheet 54 Display sheet 56 Magnet 70 Center Equipment 71 Local control panel 72 Electric lock 75 Disaster prevention receiver

Claims (6)

It has a main body installed on the outer wall surface of the door that is locked and unlocked by an electric lock, and the main body is a card reader having a card reading unit for reading information recorded on a card medium on the front,
The main body has a front case body having the card reading unit, and a rear case body attached to a wall surface,
The front case body has a hook portion for the rear case body and an engaging claw portion that engages with the rear case body, and a screw through which a fixing screw for the rear case body is inserted on the lower surface. A card reader having an insertion part.   The rear case body has a screw holding portion through which the fixing screw can be inserted, and the fixing screw has a larger diameter than the screw holding portion in a state where the fixing screw is inserted into the screw holding portion. The card reader according to claim 1.   The card reader according to claim 2, wherein a tip end portion of the fixing screw held by the screw holding portion is crushed.   3. The card reader according to claim 1, wherein the hook portion is disposed on an upper portion of the front case body, and the engagement claw portion is disposed on a side portion of the front case body. .   The main body includes a display unit having a light emitter, and the rear case includes a distance detection switch that generates an on / off signal according to a distance from the front case, and the distance detection switch The card reader according to any one of claims 1 to 4, wherein when the front case body is detected to be at a predetermined distance from the rear case body, the display section performs a predetermined display.   The card reader according to any one of claims 1 to 5, wherein the rear case body is formed in a box shape having an open front side, and has nameplate portions on the inner surface and the outer surface of the box shape.

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