JP6964997B2 - card reader - Google Patents

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

Users entering and exiting the conference room carry, for example, a non-contact IC card in which user identification information is registered. By holding the non-contact IC card over a card reader, the user identification information is read and sent to the local control panel. , The electric lock is unlocked when the collation with the user identification information registered in advance on the local control panel is obtained, and the door is opened so that the user can enter and exit. A card reader that unlocks an electric lock by holding a non-contact IC card in this way is shown in, for example, Patent Document 1.

JP-A-2009-294886

The card reader has a main body having a card reading unit in front of the card reader, which is embedded in the wall surface. The main body is formed by integrating a front case body having a card reading unit and a rear case body embedded in a wall surface. A circuit board having an antenna coil or the like 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 inside the rear case body.

A display unit is provided on the card reader to display the reading status of the card medium. In order to improve the visibility of the display unit, it is conceivable to provide a light guide arranged so as to surround the area of the card reading unit and an LED that projects light on the light guide in the main body unit. By forming a region for transmitting the light from the light guide on the front surface of the main body portion, a display portion surrounding the card reading portion is formed.

The light guide is required to emit light uniformly toward the front side. When the light guide is arranged so as to surround the area of the rectangular card reading unit, corner portions are formed at the four corners, and the other portions are linear. In order to spread the light on both sides of the corner part, it is necessary to arrange the LED near the corner part of the light guide, but if it is left as it is, the light will concentrate on the corner part of the light guide and the light will be emitted uniformly. Is difficult.

The present invention has been made in view of the above problems, and provides a card reader capable of uniformizing light in a light guide having corner portions and displaying with uniform light surrounding a card reading unit. With the goal.

In order to solve the above problems, the 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 that has a card reader on the front to read the information
In the main body, a light guide provided so as to surround the area of the card reading unit, and a first light emitting unit and a second light emitting unit that emit light from the outer peripheral side with respect to the light guide are arranged.
The light guide has at least one corner portion, and a first straight portion and a second straight portion sandwiching the corner portion.
The light guide is from a first light guide path that guides light from the first light emitting portion to the first straight line portion and the second straight line portion via the corner portion, and from the second light emitting portion. It has a first light guide path and a second light guide path that guides the light of the light to the first straight line portion and the second straight line portion through the corner portion, and is between the first light guide path and the second light guide path. It is characterized by the fact that a space portion is formed.

According to the invention of claim 1, the light from the first light emitting portion and the light from the second light emitting portion are directed not only in the direction of the first straight portion facing each other but also in the second straight portion orthogonal to each other. It can be controlled to disperse in the direction so that the light is evenly distributed throughout the light guide.

Further, in the card reader according to the second aspect of the present invention, the first light emitting portion is arranged so as to face the first straight portion via the corner portion of the light guide in the length direction. The second light emitting unit is configured to be arranged on the outer peripheral side of the first straight line portion. The card reader according to the third aspect of the present invention is characterized in that the second light guide portion is formed so as to project toward the outer peripheral side from the corner portion.

According to the third aspect of the present invention, the first light emitting unit and the second light emitting unit can be separated from each other to sufficiently secure the respective optical paths and the width of the space portion can be secured. Therefore, the second light emitting unit can be secured. It is possible to easily direct the light from the light toward the second straight line portion side.

Further, in the card reader according to the invention of claim 4, the light guide reflects the light from the first light emitting unit and the light from the second light emitting unit toward the second straight line portion. It is characterized in that the reflecting portion is provided on the inner peripheral portion of the corner portion.

According to the invention of claim 4 , the light from the first light emitting portion and the light from the second light emitting portion incident from the outer peripheral side of the corner portion can be directed to the second straight portion side, respectively. ..

Furthermore, in the card reader according to the invention of claim 5, the light guide is a second reflection that disperses the light traveling in the second light guide path in a plurality of directions before entering the corner portion. It is configured to have a part.

According to the invention of claim 5 , it is possible to prevent the light traveling through the second light guide path from concentrating at one place and to make the light uniform.

Then, in the card reader according to the invention of claim 6, the light guide reflects the light traveling on the first light guide path toward the second straight line portion before entering the corner portion. It is characterized by having a third reflecting portion.

According to the invention of claim 6 , a part of the light from the first light emitting portion can be directed toward the second straight portion side to make the light more uniform.

According to the card reader according to the present invention, the card reading unit can be surrounded by uniform light and displayed by uniformly distributing the light over the entire light guide.

It is a 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 an exploded perspective view of a card reader. It is a front view of a light guide. It is a rear view of a light guide. It is the AA end view of FIG. It is a BB end view of FIG. It is an enlarged front view of the corner part of a light guide, and is the figure which showed the path of the light from the 1st light emitting part. It is an enlarged front view of the corner part of a light guide, and is the figure which showed the path of the light from the 2nd light emitting part.

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

The main body 10 is formed by integrating the front case body 11 on the front side and the rear case body 12 on the back side, and providing a surface sheet 54 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 which is a portion over which the card medium is held, and a translucent front display unit 22 provided so as to surround the card reading unit 20 in the front surface. 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, substantially U-shaped front display units 22 are provided at the top and bottom, respectively. The surface sheet 54 has a light-transmitting region in the shape of the front display portion 22, and the light guide 30 arranged so as to face the region and the light guide 30 inside the main body portion 10 have a light-transmitting region. An LED that emits light is provided. The front display unit 22 displays the locked state of the electric lock, the reading state of the card medium, and the like by the color and the lighting / blinking state.

Side display portions 21 are provided on both upper sides of the front case body 11. The side display unit 21 has LEDs corresponding to the respective LEDs, and the display by light emission can be visually recognized from the front direction and the side direction of the card reader 1. The LED of the side display unit 21 has LEDs of three primary colors, and any color can be generated by the combination thereof. The side display unit 21 displays the status display and alarm of the card reader 1 such as the alert mode and the alert release mode according to the color and the lighting / blinking state.

As shown in FIG. 3, the rear case body 12 has a box-shaped portion 12a opened on the front side so that a substrate or the like can be housed, and a mounting surface portion 12b formed so as to extend outward from the opening of the box-shaped portion 12a. And have. The front case body 11 has a front surface portion 11a constituting the front surface and a side surface portion 11b extending from the edge portion to the back surface side over four circumferences. A recess 11c for accommodating the surface sheet 54 is formed in the front surface portion 11a.

The circuit board 50, the light guide 30, and the 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 laminated in two stages by spacers. An antenna coil 50c is arranged on the RF substrate 50a, and the information on the card medium can be read by the antenna coil 50c and the reading circuit mounted on the substrate. On the RF substrate 50a, an LED that is a light emitting body for displaying from the side display unit 21 of the main body 10 and an LED that emits light to the light guide 30 are arranged. Further, a Hall IC constituting a tamper switch is arranged on the CPU board 50b.

The light guide 30 is separated into upper and lower parts, and each has a substantially U-shaped shape. The light guide 30 has a shape corresponding to the front display portion 22 of the front case body 11 and is arranged so as to face the front display portion 22. Light from the LED arranged on the RF substrate 50a is incident on the light guide 30, and the light is diffused as a whole and emitted to the front side. Therefore, the light from the LED is evenly emitted from the entire front display unit 22. The front display unit 22 displays the locked state of the electric lock, the reading state of the card medium, and the like by the color and the lighting / blinking state.

A capacitance switch shown by a broken line is arranged on the capacitance switch sheet 53. The capacitance switch is either a warning setting switch 53a, a warning release switch 53b, or a numeric keypad switch 53c. By touching the part of the card reading unit 20 of the front case body 11 facing each other with a fingertip, these capacitance switches change the capacitance even if they do not come into direct contact with each other, and this is electrically detected. It is a switch signal.

The surface sheet 54 is adhesively fixed to the recess 11c of the front case body 11. On the surface sheet 54, the warning setting switch symbol 54a is located at a position corresponding to the warning setting switch 53a of the capacitance switch sheet 53, and the warning release switch symbol 54b is located at a position corresponding to the warning release switch 53b of the capacitance switch sheet 53. Are displayed respectively. A card reading symbol 54c is displayed in the center of the surface sheet 54. Further, the surface sheet 54 has a surface transmitting portion 54d that becomes a front display portion 22 when attached to the front case body 11. The surface transmitting portion 54d is formed so as to face the light guide 30. Further, the surface transmitting portion 54d has diffusivity, and by diffusing the light emitted from the inside of the main body portion 10 by the surface transmitting portion 54d, the light can be visually recognized not only from the front surface of the card reader 1 but also from the lateral direction. It is improving the sex.

The front case body 11 and the rear case body 12 are fixed by a fixing screw 13 inserted from below with respect to the rear case body 12.

The light guide 30 will be described in detail. 4 is a front view of the light guide 30, FIG. 5 is a rear view of the light guide 30, FIG. 6 is an AA end view of FIG. 4, and FIG. 7 is a BB end view of FIG. Are shown respectively. The light guide 30 is made of a transparent resin material. The light guide 30 has a substantially U-shaped emitting portion 31 that emits incident light to the front side, and a peripheral portion 32 provided around the emitting portion 31. As shown in FIGS. 6 and 7, the exiting portion 31 projects to the front side of the peripheral portion 32. The peripheral portion 32 is provided in order to make the distribution of light in the emitting portion 31 uniform by reflecting light or the like.

Since the light guide 30 is substantially U-shaped, it has two corners 33. Hereinafter, the left corner portion 33 in FIG. 4, the first straight line portion 34 in the vertical direction and the second straight line portion 35 in the horizontal direction sandwiching the corner portion 33 will be described. At the corner portion 33, the exit portion 31 is formed in an arc shape and connects the first straight line portion 34 and the second straight line portion 35.

The first light emitting unit 25 that emits blue and the second light emitting unit 26 that emits red are arranged above the corners 33. The first light emitting portion 25 is arranged so as to face the first straight portion 34 in the length direction via the corner portion 33. Therefore, the first light emitting unit 25 emits light downward. The second light emitting unit 26 is arranged on the outer peripheral side of the light guide 30 with respect to the first straight line unit 34. Further, the second light emitting unit 26 is arranged so as to emit light downward like the first light emitting unit 25.

In the light guide 30, a first light guide path 36 is formed so as to face the first light emitting unit 25, and a second light guide path 37 is formed so as to face the second light emitting unit 26. The first light guide path 36 is formed so as to project upward from the vicinity of the upper end of the light guide 30. The second light guide path 37 is formed so as to project obliquely upward from the upper side of the light guide 30. Therefore, the first light guide path 36 and the second light guide path 37 are not continuous, and a space 38 is formed between them.

A first reflective portion 40 cut out in a concave shape is formed on the inner peripheral portion of the corner portion 33 of the light guide 30. The first reflecting portion 40 is formed so as to substantially face the notch shape formed on the outer peripheral portion of the light guide 30 by the space portion 38 in the width direction of the emitting portion 31. More specifically, the first reflecting portion 40 has a portion in which the outer peripheral portion of the peripheral portion 32 formed along the direction of the first straight portion 34 is bent at an obtuse angle and the direction of the second straight portion 35. It is composed of a portion in which the outer peripheral portion of the peripheral portion 32 formed along the above portion is bent at an obtuse angle and a portion in which these portions are smoothly connected.

As shown in FIG. 7, a second reflective portion 41 recessed in a concave shape is formed on the back surface of the second light guide path 37. The second reflecting portion 41 has a substantially quadrangular shape. A part of the light traveling through the second light guide path 37 is reflected by the second reflecting portion 41 before entering the corner portion 33.

As shown in FIG. 6, a third reflective portion 42 recessed in a concave shape is formed in front of the first light guide path 36. The third reflecting portion 42 has a substantially triangular shape. A part of the light traveling through the first light guide path 36 is reflected by the third reflecting portion 42 before entering the corner portion 33.

The light path in the light guide 30 will be described. FIG. 8 is an enlarged front view of the corner portion 33 of the light guide 30, showing the path of light from the first light emitting portion 25. The first light emitting unit 25 is a blue LED and generates divergent light. In the first light guide path 36 facing the first light emitting unit 25, an incident portion 36a is formed so as to project in an arc shape in a portion where light is incident. The incident portion 36a disperses the light from the first light emitting portion 25 so that the light can be easily guided to the second straight portion 35 side.

The light incident on the first light guide path 36 travels in the direction toward the opposite first straight line portion 34 (L1-1), but a part of the light (L1-2) spreading to the left side in the figure is It reflects at the boundary with the space portion 38 and proceeds in the direction toward the second straight portion 35. A part of the light (L1-3) reflected at the boundary with the space portion 38 is further reflected by the first reflecting portion 40 toward the second straight portion 35. As a result, the amount of light emitted near the end of the corner portion 33 can be suppressed and the amount of light emitted on the side of the second straight portion 35 can be increased as compared with the case where the first reflecting portion 40 is not provided. Further, a part of the light (L1-4) spreading from the first light emitting unit 25 to the right side in the drawing is reflected by the third reflecting unit 42 in the direction toward the second straight line portion 35. As a result, a part of the light from the first light emitting unit 25 traveling toward the first straight line portion 34 can travel toward the second straight line portion 35.

The first reflecting portion 40 is provided to more efficiently direct the light reflected at the boundary with the space portion 38 toward the second straight line portion 35. Further, the boundary surface of the first light guide path 36 with the space portion 38 is formed as an inclined surface 36b so that light can easily face the first reflecting portion 40 and the second straight portion 35. Further, the third reflecting portion 42 reflects the light in the direction along the length direction of the second straight portion 35, so that the amount of light in the central portion of the second straight portion 35 is sufficiently secured. can do.

FIG. 9 is an enlarged front view of the corner portion 33 of the light guide 30, showing the path of light from the second light emitting portion 26. The second light emitting unit 26 is a red LED and generates divergent light. The end surface of the second light guide path 37 with which the second light emitting unit 26 faces is an inclined surface-shaped incident portion 37a. Therefore, a part of the light (L2-1) from the second light emitting unit 26 is directly incident on the second light guide path 37, and a part of the light from the second light emitting unit 26 (L2-2). Is reflected by the incident portion 37a and proceeds in the direction toward the second straight portion 35. The light (L2-1) traveling through the second light guide path 37 is reflected and dispersed in a plurality of directions by the second reflecting portion 41, and the light (L2-3) that is not reflected is the first straight portion 34. Proceed to the side. A part (L2-4) of the light reflected by the incident portion 37a and traveling in the direction toward the second straight portion 35 is reflected by the first reflecting portion 40 toward the second straight portion 35. The second reflecting portion 41 has a shape that changes deeper in the thickness direction of the light guide 30 than the third reflecting portion 42, and is greatly affected by reflection. As described above, the effects of the second reflecting portion 41 and the third reflecting portion 42 can be appropriately set by adjusting the depth.

The first reflecting unit 40 can more efficiently direct the light reflected by the incident unit 37a to the second straight line unit 35, as in the case of the light from the first light emitting unit 25. Further, since a part of the light directed to the first straight line portion 34 is dispersed in a plurality of directions by the second reflecting portion 41, the light traveling on the second light guide path 37 is concentrated on a specific portion of the corner portion 33. This prevents the amount of light from becoming too large.

Further, the peripheral portion 32 of the second straight portion 35 becomes thinner as the distance from the light emitting portions 25 and 26 on both sides increases, and is formed so as to be the thinnest in the substantially center. As a result, the ratio of the width of the emitting portion 31 to the emitting portion 31 and the peripheral portion 32 increases from the side portion side where the light emitting portions 25 and 26 are arranged toward the center side, and the distance from the emitting portion 25 and 26 increases. Even if the amount of light is attenuated as the result is increased, the attenuation of the amount of light emitted from the emitting unit 31 can be suppressed.

As described above, in the light guide 30, the first light guide path 36 that guides the light from the first light emitting unit 25 to the corner portion 33 and the second light guide path 36 that guides the light from the second light emitting unit 26 to the corner portion 33. The light guide path 37 is provided, and the first light guide path 36 and the second light guide path 37 are separated by a space 38, so that the light from the first light emitting unit 25 and the second light emitting unit 26 are separated from each other. It is possible to disperse the light from the light not only in the direction of the first straight line portion 34 facing each other but also in the direction of the second straight line portion 35 orthogonal to each other, so that the light is evenly distributed throughout the light guide 30. Can be done. Further, by providing the first reflecting portion 40, the second reflecting portion 41, and the third reflecting portion 42, light can be appropriately distributed to the first straight portion 34 and the second straight portion 35, respectively. Further, it is possible to suppress the concentration of light and realize uniform light emission in the substantially U-shaped light guide 30.

Up to this point, the shape of the left half of the light guide 30 in FIG. 4 has been described, but the right half also has a symmetrical shape, and the first light emitting unit 25 and the second light emitting unit 26 are also arranged at symmetrical positions. Will be done. Further, the light guide 30 having a vertically symmetrical shape is also arranged in the lower half of the main body portion 10, and the first light emitting unit 25 and the second light emitting unit 26 are also arranged in vertically symmetrical positions. As a result, the light guide 30 emits light so as to surround almost the entire periphery of the card reading unit 20, and display from the front display unit 22 can be performed.

Although the embodiment of the present invention has been described above, the application of the present invention is not limited to the present embodiment and can be applied in various ways within the scope of the technical idea thereof. In the present embodiment, the first light emitting unit 25 and the second light emitting unit 26 are arranged so as to emit light downward, but the arrangement may be changed according to the shape and characteristics of the light guide 30. For example, the arrangement and orientation of the first light emitting unit 25 may not be changed, and the first light guide path 36 may be provided with an inclined surface in the same manner as the second light guide path 37 to adjust the light path. good. Further, due to restrictions on the arrangement of circuit components, it is preferable to change the orientation of the first light emitting unit 25 and the second light emitting unit 26 in units of 90 degrees, but the light emitting unit does not change the shape of the light guide path. You may freely change the orientation and arrangement of. Further, in the present embodiment, the first light emitting unit 25 and the first light guide path 36, the second light emitting unit 26 and the second light guide path 37 are substantially U-shaped upper and lower vertical sides in the light guide 30, respectively. Although they are arranged along substantially the same direction as the first straight portion 34 corresponding to the above, the light emitting portion, the light guide path, and the straight portion may be arranged in substantially the same direction, for example, the light guide 30. May be arranged along substantially the same direction as the second straight line portion 35 corresponding to the substantially U-shaped horizontal side.

Further, in the present embodiment, the depth of the second reflecting portion 41 is formed deeper than that of the third reflecting portion 42, but the depth is adjusted in order to adjust the influence based on the amount of light emitted from the LED and the configuration of the subsequent stage. It may be adjusted as appropriate.

Further, in the present embodiment, two LEDs are arranged as the light emitting unit, but three LEDs may be arranged so that the composite color is emitted from the light guide 30. In this case, by adding a light guide path to the light guide 30 and further adjusting the current value to each LED, it is possible to emit light in an arbitrary color.

1 Card reader 10 Main body 11 Front case 12 Rear case 20 Card reader 21 Side display 22 Front display 25 First light emitting part 26 Second light emitting part 30 Light guide 31 Exiting part 32 Peripheral part 33 Corner part 34 First straight part 35 Second straight part 36 First light guide path 36a Incident part 36b Inclined surface 37 Second light guide path 37a Incident part 38 Space part 40 First reflection part 41 Second reflection part 42 Third reflector 50 Circuit board 53 Capacitive switch sheet 54 Surface sheet

Claims (6)

A card reader having a main body portion installed on the outer wall surface of a door locked and unlocked by an electric lock, and the main body portion having a card reading unit for reading information recorded on a card medium on the front surface.
In the main body, a light guide provided so as to surround the area of the card reading unit, and a first light emitting unit and a second light emitting unit that emit light from the outer peripheral side with respect to the light guide are arranged.
The light guide has at least one corner portion, and a first straight portion and a second straight portion sandwiching the corner portion.
The light guide is from a first light guide path that guides light from the first light emitting portion to the first straight line portion and the second straight line portion via the corner portion, and from the second light emitting portion. It has a first light guide path and a second light guide path that guides the light of the light to the first straight line portion and the second straight line portion through the corner portion, and is between the first light guide path and the second light guide path. A card reader characterized by the formation of a space. The first light emitting portion is arranged so as to face the first straight portion in the length direction via the corner portion of the light guide, and the second light emitting portion is the first straight portion. The card reader according to claim 1, wherein the card reader is arranged on the outer peripheral side. It said second light path, the card reader according to claim 1 or 2, characterized in that it is formed so as to protrude on the outer peripheral side of the corner. The light guide has a first reflecting portion that reflects light from the first light emitting portion and light from the second light emitting portion toward the second straight line portion on the inner peripheral portion of the corner portion. The card reader according to any one of claims 1 to 3, characterized in that the card reader is used. Claim 1 is characterized in that the light guide has a second reflecting portion that disperses the light in a plurality of directions before the light traveling through the second light guide path enters the corner portion. The card reader according to any one of 4 to 4. The light guide is characterized by having a third reflecting portion that reflects the light traveling on the first light guide path toward the second straight portion before entering the corner portion. The card reader according to any one of claims 1 to 5.

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