Card reader and assembly method therefor

Abstract

To provide a card reader and an assembly method therefor that can easily position an antenna unit in a plurality of modes in which the antenna unit is arranged at different positions.SOLUTION: A card reader 1 includes a housing 2, an antenna portion 5, and an adhesion layer provided between an inner surface 27b of the housing 2 and the antenna portion 5. The housing 2 includes a first restriction portion 31 that restricts movement of the antenna portion 5 to one side in a first direction, a second restriction portion 33 that restricts the movement of the antenna portion 5 to the other side in the first direction, and a third restriction portion 32 that restricts the movement of the antenna portion 5 to one side in a second direction that is along the inner surface 27b of the housing 2 and perpendicular to the first direction. In a first aspect in which the antenna portion 5 is positioned at a first position, the antenna portion 5 contacts the first restriction portion 31 and the third restriction portion 32, and in a second aspect in which the antenna portion 5 is positioned at a second position, the antenna portion 5 contacts the second restriction portion 33 and the third restriction portion 32.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a card reader and a method for assembling a card reader. [Background technology]

[0002] Conventionally, access control systems that manage the entry and exit of users have been installed in facilities such as office buildings and factories. The authentication device used in these access control systems is a card reader (reading device) that reads information on an authentication card carried by the user wirelessly over short distances. Inside the card reader is an antenna module that can communicate with the authentication card.

[0003] As disclosed in Patent Document 1 below, it is known to use double-sided tape as a method for fixing an antenna module (substrate).

[0004] Furthermore, as disclosed in Patent Document 2 below, there is also a method of providing protrusions to position the antenna module in the left-right and up-down directions. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 5641152 [Patent Document 2] Japanese Patent Application Laid-Open No. 2007-140943 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in Patent Document 1, when an antenna module is used in a non-insertion type card reader (touch type), if the positioning accuracy is low, there is a problem that the position where the antenna characteristics are high and the position where the user holds the card are misaligned. In particular, when the antenna module is fixed using double-sided tape, if the double-sided tape comes into contact with the surface to be fixed, the antenna module cannot be moved, and there is also a problem that the method of contacting the antenna module with the surface to be fixed and then sliding the position to fine-tune the fixed position cannot be used. Furthermore, to reduce the labor required during the manufacturing process, it is more desirable to have a structure and method that can position the antenna board without using a positioning jig.

[0007] Furthermore, in Patent Document 2, when the position of the antenna module changes due to a model change, a dedicated intermediate member must be prepared for each model, which is an issue. In particular, with regard to card readers used for entering and exiting rooms, models with a numeric keypad for entering numbers and models without a numeric keypad may be developed at the same time, and in this case, it is desirable to standardize the members across multiple models.

[0008] Therefore, the present invention has been made in consideration of the above circumstances, and provides a card reader and a card reader assembly method that can easily position the antenna unit in multiple configurations where the antenna unit is placed in different positions. [Means for solving the problem]

[0009] In order to achieve the above object, the present invention employs the following means. That is, the card reader of the present invention comprises a housing having an internal space formed therein, an antenna unit that is positioned at either a first position or a second position that differs in a first direction along the inner surface of the housing facing the internal space, and an adhesive layer provided between the inner surface of the housing and the antenna unit, the housing comprising a first regulating portion that regulates movement of the antenna unit to one side in the first direction, a second regulating portion that regulates movement of the antenna unit to the other side in the first direction, and a third regulating portion that regulates movement of the antenna unit to one side in a second direction that is along the inner surface of the housing and perpendicular to the first direction, and in a first aspect in which the antenna unit is positioned at the first position, the antenna unit contacts the first regulating portion and the third regulating portion, and in a second aspect in which the antenna unit is positioned at the second position, the antenna unit contacts the second regulating portion and the third regulating portion.

[0010] In the card reader configured in this manner, in the first mode, the antenna unit contacts the first restricting portion of the housing and the third restricting portion of the housing, and is positioned by being restricted from moving to one side in the first direction and to one side in the second direction. In the second mode, the antenna unit contacts the second restricting portion of the housing and the third restricting portion of the housing, and is positioned by being restricted from moving to the other side in the first direction and to one side in the second direction. Therefore, the antenna unit can be easily positioned using a common housing in the first and second modes.

[0011] In the card reader according to the present invention, the first restricting portion, the second restricting portion, and the third restricting portion may be protrusions that protrude from an inner surface of the housing toward the internal space.

[0012] In the card reader configured in this manner, the first, second, and third restricting portions are protrusions that protrude from the inner surface of the housing toward the internal space, making it easy to manufacture the first, second, and third restricting portions.

[0013] In addition, in the card reader of the present invention, at least one of the first regulating portion, the second regulating portion, and the third regulating portion may be arc-shaped when the inner surface of the housing is viewed from the front, and the portion of the antenna portion that contacts the regulating portion may be a recess that is arc-shaped when the inner surface of the housing is viewed from the front.

[0014] In a card reader configured in this manner, the restricting portion has an arc shape when the inner surface of the housing is viewed from the front. The portion of the antenna portion that contacts the restricting portion is a recess that also has an arc shape when the inner surface of the housing is viewed from the front. Therefore, when the antenna portion is brought into contact with the restricting portion for positioning, it is guided by the arc-shaped restricting portion, allowing for smooth positioning.

[0015] In addition, in the card reader of the present invention, the length of the side of the antenna part that contacts the first regulating part when the antenna part is positioned at the first position may be longer than the length from the second regulating part to the third regulating part.

[0016] In a card reader configured in this manner, if the antenna unit is mistakenly placed in the second direction when attempting to implement the second mode, the antenna unit will interfere with the second restriction portion, creating a sense of incongruity compared to when assembled correctly. This makes it possible to prevent the antenna unit from being mistakenly placed in the second direction.

[0017] In addition, in the card reader of the present invention, the first regulating portion has an arc shape when the inner surface of the housing is viewed from the front, and the recess is formed at one end of the antenna portion in the first direction when the antenna portion is positioned at the first position, and the recess may not be formed at the other end of the antenna portion in the first direction when the antenna portion is positioned at the first position.

[0018] In a card reader configured in this manner, if the first mode is implemented and the antenna unit is mistakenly placed in the second direction, the portion of the antenna unit without the recess will come into contact with the first restricting portion, creating a sense of incongruity compared to the correct assembly in which the arc-shaped first restricting portion and the recess engage. This makes it possible to prevent the antenna unit from being mistakenly placed in the second direction.

[0019] In addition, a card reader assembly method according to the present invention is a method for assembling a card reader as described above, in which the adhesive layer is provided on the side of the antenna unit facing the inner surface of the housing, one end of the antenna unit in the second direction is brought into contact with the third regulating unit, and the antenna unit is moved in the first direction without adhering the adhesive layer to the inner surface of the housing, and in the first aspect, when the antenna unit comes into contact with the first regulating unit, the adhesive layer is adhered to the inner surface of the housing, and in the second aspect, when the antenna unit comes into contact with the second regulating unit, the adhesive layer is adhered to the inner surface of the housing.

[0020] In the method for assembling a card reader configured in this manner, the antenna unit is moved in a first direction while being in contact with the third restricting portion of the housing, without adhering the adhesive layer to the inner surface of the housing. In the first embodiment, when the antenna unit contacts the first restricting portion, the adhesive layer is adhered to the inner surface of the housing, thereby adhering the antenna unit to the inner surface of the housing. In the second embodiment, when the antenna unit contacts the second restricting portion, the adhesive layer is adhered to the inner surface of the housing, thereby adhering the antenna unit to the inner surface of the housing. Thus, in both the first and second embodiments, the antenna unit can be adhered to the inner surface of the housing after being positioned in an appropriate position, making it easy to position the antenna unit and preventing misalignment of the antenna unit. [Effects of the Invention]

[0021] According to the card reader and the method for assembling a card reader of the present invention, the antenna unit can be easily positioned in a plurality of configurations in which the antenna unit is disposed at different positions. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is a front view showing a first state of a card reader according to an embodiment of the present invention. [Figure 2] FIG. 2 is a front view showing a second state of the card reader according to one embodiment of the present invention. [Figure 3] 1 is a perspective view of a card reader according to an embodiment of the present invention, seen from the rear side. [Figure 4] 1 is a perspective view showing the inside of a card reader according to an embodiment of the present invention. [Figure 5] 1 is a diagram showing a first state in which an antenna unit is located at a first position in a card reader according to an embodiment of the present invention, as viewed from the rear side. FIG. [Figure 6] 10 is a rear view of the card reader according to the embodiment of the present invention, showing a second state in which the antenna unit is positioned at a second position. FIG. [Figure 7] FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 5. [Figure 8] FIG. 8 is an enlarged view of part VIII in FIG. 5. [Figure 9] FIG. 9 is a cross-sectional view taken along line IX-IX in FIGS. 5 and 6. [Figure 10] FIG. 7 is a cross-sectional view taken along line XX in FIG. 6. [Figure 11] 1A to 1C are diagrams illustrating a method of assembling a first aspect of a card reader according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0023] A card reader and a method for assembling the card reader according to an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a front view showing a first embodiment of a card reader according to an embodiment of the present invention, and Fig. 2 is a front view showing a second embodiment of the card reader according to an embodiment of the present invention. The card reader 1 of the first embodiment shown in FIG. 1 is referred to as card reader 1A. The card reader 1 of the second embodiment shown in FIG. 2 is referred to as card reader 1B. As shown in FIG. 1, card reader 1A is a two-key type having two keys, "SET" and "RESET," provided on front panel 28. Card reader 1B is a 14-key type having 14 keys, including "SET," "RESET," and a numeric keypad, provided on front panel 28. Although card reader 1A and card reader 1B have different front panel 28, they share many components and differ in the position of antenna board 5, which will be described later. The number and positions of the keys provided in card reader 1A and card reader 1B can be set as appropriate.

[0024] The card reader 1 includes a housing 2, an antenna board (antenna unit) 5 (see FIG. 4), an operation board 71 (see FIG. 4), and a control board 76 (see FIG. 4). The front panel unit 28 side of the card reader 1 is the front side, and the opposite side is the rear side, with the direction connecting these sides being referred to as the front-to-rear direction and indicated by arrow Z. When viewing the front panel unit 28 from the front, the left side is the left side and the right side is the right side, with the direction connecting these sides being referred to as the left-to-right direction and indicated by arrow X. When viewing the front panel unit 28 from the front, the upper side is the upper side and the lower side is the lower side, with the direction connecting these sides being referred to as the up-down direction and indicated by arrow Y.

[0025] FIG. 3 is a perspective view of the card reader 1 as seen from the rear side. 3, the housing 2 has a rear cover 21 and a front cover 26. The rear cover 21 is a box-shaped member that opens to the front. The front cover 26 closes the front side of the rear cover 21. An internal space S is formed between the rear cover 21 and the front cover 26 to accommodate the antenna board 5, the control board 76, the operation board 71, etc.

[0026] As shown in FIG. 1, the front cover 26 has a front cover main body 27 and a front panel portion 28. The front cover main body 27 has a generally rectangular shape when viewed from the front. The front panel portion 28 is provided on the inside of the front cover main body 27 when viewed from the front. The front panel portion 28 of the card reader 1A is referred to as the front panel portion 28A. The front panel portion 28 of the card reader 1B shown in FIG. 2 is referred to as the front panel portion 28B.

[0027] 1, the "SET" key a and the "RESET" key b are located on the right side of the front panel 28A. The card reading position c, which indicates the card reading position represented by "Card," is located in the center in the horizontal direction and slightly below the center in the vertical direction.

[0028] As shown in Figure 2, on the front panel 28B, the "SET" key a and the "RESET" key b are located in the center in the left-right direction. The card reading position c is located slightly to the left of the center in the left-right direction and slightly below the center in the up-down direction. The numeric keypad d, which contains the numbers "0" to "9" etc., is located on the right side.

[0029] 1 and 2, the card reading position c is located in a different position between front panel portion 28A and front panel portion 28B. By holding a non-contact IC card over card reading position c from the front side, the non-contact IC card can communicate wirelessly with antenna board 5. In each of card reader 1A and card reader 1B, antenna board 5, which will be described later, is located in a position corresponding to card reading position c.

[0030] FIG. 4 is a perspective view showing the inside of the card reader 1 with the rear cover 21 removed. As shown in Fig. 4, the antenna substrate 5 is fixed to the rear side of the front cover main body 27 of the front cover 26 via an adhesive layer 8 (see Fig. 7). When a contactless IC card comes close, for example, the antenna substrate 5 is supplied with power by electromagnetic induction to operate and read desired user information from the contactless IC card.

[0031] The operation board 71 is disposed behind the antenna board 5. The operation board 71 is fixed to the front cover body 27 with screws 72. The control board 76 is disposed behind the operation board 71. The control board 76 is fixed to the front cover body 27 with screws 72. The positions and fixing methods of the operation board 71 and the control board 76 can be set as appropriate.

[0032] When keys such as the "SET" key a and the "RESET" key b on the front panel 28 are pressed, switch components arranged on the operation board 71 are pressed. When a key is operated, the key comes into contact with a switch component arranged on the operation board 71. In response to this, the operation board 71 transmits a predetermined signal corresponding to the key operation to a control board 76 connected by a cable (not shown).

[0033] The fixing structure for fixing the antenna board 5 to the front cover main body 27 will be described. FIG. 5 is a diagram showing a first state in which the antenna board 5 is located at a first position, as viewed from the rear side. As shown in Fig. 5, the antenna substrate 5 has a generally rectangular shape when viewed from the rear, with the lower portions on both the left and right sides and the upper portion on the right side cut out. The upper side of the generally rectangular shape before the cutouts are designated as first side 51, the lower side as second side 52, the right side as viewed from the rear as third side 53, and the left side as viewed from the rear as fourth side 54. The cutout on the left side of second side 52 as viewed from the rear is designated cutout portion 55. The lower side to which fourth side 54 is connected is designated as side 56.

[0034] FIG. 6 is a diagram showing a second state in which the antenna board 5 is located at the second position, as viewed from the rear side. The position of the antenna board 5 in the left-right direction (first direction) is different between a card reader 1A of a first embodiment in which the antenna board 5 shown in Figure 5 is arranged in a first position and a card reader 1B of a second embodiment in which the antenna board 5 shown in Figure 6 is arranged in a second position.

[0035] In the card reader 1A shown in Figure 5, the antenna substrate 5 is restricted from moving to one side in the left-right direction (one side in the first direction) by the cylindrical protrusion 31, and is restricted from moving downward (one side in the second direction) by the frame-shaped protrusion portion 32a.

[0036] A cylindrical protrusion (protrusion, first restricting portion) 31 is provided on the rear surface (inner surface) 27b of the front cover main body 27. A plurality of cylindrical protrusions 31 are arranged at intervals in the vertical and horizontal directions.

[0037] Fig. 7 is a cross-sectional view taken along line VII-VII in Fig. 5. Fig. 8 is an enlarged view of part VIII in Fig. 5. As shown in FIG. 7 , the cylindrical protrusion 31 protrudes from the rear surface 27b of the front cover main body 27 into the internal space S, i.e., rearward. As shown in FIG. 8 , the cylindrical protrusion 31 has a substantially circular shape when the rear surface 27b of the front cover main body 27 is viewed from the front. The cylindrical protrusion 31 is formed in a substantially cylindrical shape. An inwardly recessed recess 61 is formed on the fourth side 54 of the antenna board 5. The recessed portion 61 has a substantially semicircular shape formed in an arc when the rear surface 27b of the front cover main body 27 is viewed from the front. The cylindrical protrusion 31 is disposed inside the recessed portion 61 in contact with or with a small gap therebetween. The contact between the recessed portion 61 and the cylindrical protrusion 31 restricts movement of the antenna board 5 to one side in the left-right direction (one side in the first direction), i.e., to the left when viewed from the rear. The recessed portion 61 and the cylindrical protrusion 31 contact each other at two locations. Note that the cylindrical protrusion 31 may have a substantially semicircular shape, with the portion of the cylindrical protrusion 31 that contacts the recessed portion 61 formed in an arc. The recess 61 and the cylindrical projection 31 may be in contact with each other at one or more points.

[0038] 5, a frame-shaped protrusion (protrusion, third restriction portion) 32 is provided along substantially the entire periphery of the outer edge on the rear surface 27b of the front cover main body 27. The frame-shaped protrusion 32 is arranged along the four sides of the front cover main body 27. The antenna board 5 is arranged along a frame-shaped protrusion portion 32a of the frame-shaped protrusion 32 that is arranged along the lower side 27a of the front cover main body 27.

[0039] FIG. 9 is a cross-sectional view taken along line IX-IX in FIGS. As shown in Figure 9, the frame-shaped protrusion 32 protrudes from the rear surface 27b of the front cover main body 27 into the internal space S, i.e., rearward. The rising surface 32b of the frame-shaped protrusion 32a extends in the left-right direction. The second side 52 of the antenna board 5 abuts on or is positioned with a small gap between it and the rising surface 32b of the frame-shaped protrusion 32a that rises from the rear surface 27b. The contact between the second side 52 of the antenna board 5 and the rising surface 32b of the frame-shaped protrusion 32a restricts downward movement of the antenna board 5 (to one side in the second direction).

[0040] In the card reader 1B shown in Figure 6, the antenna substrate 5 is restricted from moving to the other side in the left-right direction (the other side in the first direction) by the linear protrusion 33, and is restricted from moving downward (one side in the second direction) by the frame-shaped protrusion portion 32a.

[0041] A linear protrusion (protrusion, second restricting portion) 33 is provided on the rear surface 27b of the front cover main body 27. The linear protrusion 33 extends in the left-right direction.

[0042] FIG. 10 is a cross-sectional view taken along line XX in FIG. 10, the linear protrusion 33 protrudes from the rear surface 27b of the front cover main body 27 into the internal space S, i.e., rearward. The third side 53 of the antenna board 5 is disposed in contact with or with a small gap between it and the rising surface 33b of the linear protrusion 33 that rises from the rear surface 27b. The contact between the third side 53 of the antenna board 5 and the rising surface 33b of the linear protrusion 33 restricts movement of the antenna board 5 to the other side in the left-right direction (the other side in the first direction).

[0043] 9, the second side 52 of the antenna substrate 5 is disposed in contact with or with a small gap from the rising surface 32b of the frame-shaped protrusion 32a rising from the rear surface 27b. The contact between the second side 52 of the antenna substrate 5 and the rising surface 32b of the frame-shaped protrusion 32a restricts the antenna substrate 5 from moving downward (to one side in the second direction), that is, downward.

[0044] As shown in Figures 7, 9 and 10, an adhesive layer 8 is provided between the antenna substrate 5 and the rear surface 27b of the front cover main body 27. The adhesive layer 8 is provided on the back surface 5b of the antenna substrate 5 facing the rear surface 27b of the front cover main body 27. The antenna substrate 5 is adhered to the rear surface 27b of the front cover main body 27 by the adhesive layer 8. The adhesive layer 8 is provided in an area several mm inward from the outer edge of the antenna substrate 5. The adhesive layer 8 is formed of, for example, double-sided tape. The adhesive layer 8 may also be an adhesive.

[0045] As shown in FIG. 5, the shape of the antenna substrate 5 is asymmetrical with respect to both axes. The length L1 from the first side 51 to the side 56 of the antenna substrate 5, i.e., the length L1 of the fourth side 54 (the length of the side of the antenna substrate 5 that contacts the cylindrical protrusion 31), is longer than the length L2 from the surface 32b of the frame-shaped protrusion 32a to the linear protrusion 33. Therefore, if the antenna substrate 5 is mistakenly placed upside down (by rotating the antenna substrate 5 180°) when implementing the second embodiment, the fourth side 54, located on the right side as viewed from the rear (as viewed from the direction shown in FIG. 6), will come into contact with the linear protrusion 33, preventing the notch 55 from engaging with the linear protrusion 33, creating a sense of incongruity compared to the correct assembly. This prevents the antenna substrate 5 from being mistakenly placed upside down. Furthermore, the recess 61 is not formed on the third side 53. Therefore, when trying to implement the first mode, if the antenna board 5 is mistakenly placed upside down, the third side 53 without a recess located on the left side as viewed from the rear (as viewed from the direction shown in FIG. 6) will come into contact with the cylindrical protrusion 31, which will create a sense of incongruity compared to the correct assembly in which the cylindrical protrusion 31 and the recess are engaged. This makes it possible to prevent the antenna board 5 from being mistakenly placed upside down.

[0046] Next, a method for assembling the card reader 1A will be described. FIG. 11 is a diagram showing a method for assembling the card reader 1A. An adhesive layer 8 is provided on the back surface 5b of the antenna substrate 5. As shown in FIG. 11 , the second side 52 of the antenna substrate 5 is brought into contact with the raised surface 32b of the frame-shaped protrusion 32a, while the other portion of the antenna substrate 5 is tilted so as to be lifted off the rear surface 27b of the front cover main body 27. Without adhering the adhesive layer 8 to the rear surface 27b of the front cover main body 27, the antenna substrate 5 is moved left and right while the second side 52 is in contact with the raised surface 32b of the frame-shaped protrusion 32a. The antenna substrate 5 is tilted slightly until the recess 61 of the antenna substrate 5 comes into contact with the cylindrical protrusion 31, thereby determining the left and right position of the antenna substrate 5. At this position, the antenna substrate 5 is tilted completely, and the adhesive layer 8 is adhered to the rear surface 27b of the front cover main body 27.

[0047] When assembling the card reader 1B, similar to the assembly of the card reader 1A, the second side 52 of the antenna substrate 5 is brought into contact with the raised surface 32b of the frame-shaped protrusion 32a, while the other portions of the antenna substrate 5 are tilted so as to be lifted off the rear surface 27b of the front cover main body 27. Without adhering the adhesive layer 8 to the rear surface 27b of the front cover main body 27, the antenna substrate 5 is moved left and right while the second side 52 is in contact with the raised surface 32b of the frame-shaped protrusion 32a. The antenna substrate 5 is tilted slightly until the third side 53 of the antenna substrate 5 comes into contact with the raised surface 33b of the linear protrusion 33, thereby determining the left and right position of the antenna substrate 5. At this position, the antenna substrate 5 is tilted completely, and the adhesive layer 8 is adhered to the rear surface 27b of the front cover main body 27.

[0048] In the card reader 1 configured as described above, in the first mode, the antenna board 5 comes into contact with the cylindrical protrusion 31 of the housing 2 and the frame-shaped protrusion 32 of the housing 2, and is positioned by being restricted from moving to one side in the left-right direction and downward. In the second mode, the antenna board 5 comes into contact with the linear protrusion 33 of the housing 2 and the frame-shaped protrusion 32 of the housing 2, and is positioned by being restricted from moving to the other side in the left-right direction and downward. Therefore, the antenna board 5 can be easily positioned using a common housing 2 in both the first and second modes.

[0049] Moreover, the cylindrical protrusion 31, the frame-shaped protrusion 32, and the linear protrusion 33 are protrusions that protrude from the rear surface 27b of the housing 2 toward the internal space S. Therefore, the cylindrical protrusion 31, the frame-shaped protrusion 32, and the linear protrusion 33 can be easily manufactured.

[0050] Furthermore, the cylindrical protrusion 31 has an arc shape when the rear surface 27b of the housing 2 is viewed from the front. The portion of the antenna board 5 that comes into contact with the cylindrical protrusion 31 is a recess 61 that has an arc shape when the rear surface 27b of the housing 2 is viewed from the front. Therefore, when the antenna board 5 is brought into contact with the cylindrical protrusion 31 and positioned, it can be smoothly positioned by being guided by the arc-shaped cylindrical protrusion 31.

[0051] Furthermore, the length L1 of the fourth side 54 of the antenna board 5 is longer than the length L2 from the surface 32b of the frame-shaped protrusion 32a to the linear protrusion 33. Therefore, if the antenna board 5 is mistakenly placed upside down when implementing the second mode, the fourth side 54 located on the right side as viewed from the rear will come into contact with the linear protrusion 33, causing the cutout portion 55 and the linear protrusion 33 to not fit together, creating a sense of incongruity compared to the correct assembly. This makes it possible to prevent the antenna board 5 from being mistakenly placed upside down.

[0052] Furthermore, no recess 61 is formed on the third side 53 of the antenna substrate 5. Therefore, if the antenna substrate 5 is mistakenly placed upside down when implementing the first mode, the third side 53, which is located on the left side when viewed from the rear and has no recess, will come into contact with the cylindrical protrusion 31, which will create a sense of incongruity compared to the correct assembly in which the cylindrical protrusion 31 and the recess engage. This makes it possible to prevent the antenna substrate 5 from being mistakenly placed upside down.

[0053] Alternatively, the antenna substrate 5 is moved left and right while in contact with the frame-shaped protrusion 32 of the housing 2, without the adhesive layer being attached to the rear surface 27b of the housing 2. In the first embodiment, when the antenna substrate 5 comes into contact with the cylindrical protrusion 31, the adhesive layer 8 is attached to the rear surface 27b of the housing 2, and the antenna substrate 5 is attached to the rear surface 27b of the housing 2. In the second embodiment, when the antenna substrate 5 comes into contact with the linear protrusion 33, the adhesive layer 8 is attached to the rear surface 27b of the housing 2, and the antenna substrate 5 is attached to the rear surface 27b of the housing 2. Thus, in both the first and second embodiments, the antenna substrate 5 can be attached to the rear surface 27b of the housing 2 after being positioned in an appropriate position, making it easy to position the antenna substrate 5 and preventing the antenna substrate 5 from shifting position.

[0054] The assembly procedures, shapes and combinations of the components, etc. shown in the above-described embodiments are merely examples, and various modifications can be made based on design requirements, etc., within the scope of the present invention.

[0055] For example, the second restricting portion that restricts movement of the antenna substrate 5 on the other side in the left-right direction may be substantially circular like the cylindrical protrusion 31. The shapes of the first restricting portion, the second restricting portion, and the third restricting portion can be set as appropriate.

[0056] The first restricting portion, the second restricting portion, and the third restricting portion may use the fixing portion and the engaging portion of the operation board 71.

[0057] The antenna substrate 5 is configured to move in the left-right direction along the frame-shaped protrusion 32a and come into contact with the cylindrical protrusion 31 or the linear protrusion 33, but is not limited to this. The antenna substrate 5 may also be configured to move in the up-down direction along the side of the frame-shaped protrusion 32 extending in the up-down direction and come into contact with any of the first restricting portion, the second restricting portion, and the third restricting portion.

[0058] The cutout 55 does not have to be provided in the antenna board 5. Even in this case, the length of the side of the antenna unit that contacts the first restricting portion when the antenna unit is arranged in the first position (the length from the first side 51 to the second side 52) is longer than the length L2 from the second restricting portion to the third restricting portion, and this makes it possible to prevent the antenna board 5 from being erroneously arranged upside down when trying to implement the second mode. [Explanation of symbols]

[0059] 1,1A,1B card reader 2. Case 5 Antenna board (antenna part) 8 Adhesive layer 27b Rear surface (inner surface) 31 Cylindrical protrusion (protrusion, first restriction portion) 32 Frame-shaped projection (protrusion, third regulating part) 33 Linear projection (protrusion, second regulating part) 61 Recess S interior space

Claims

1. a housing having an internal space formed therein; an antenna unit disposed at either a first position or a second position, the positions being different in a first direction along an inner surface of the housing facing the internal space; an adhesive layer provided between the inner surface of the housing and the antenna portion, The housing includes: a first restricting portion that restricts movement of the antenna portion to one side in the first direction; a second restricting portion that restricts movement of the antenna portion to the other side in the first direction; a third restricting portion that restricts movement of the antenna portion along an inner surface of the housing and to one side in a second direction perpendicular to the first direction, In a first aspect in which the antenna unit is disposed at the first position, the antenna unit contacts the first restricting portion and the third restricting portion, In a second aspect, the antenna portion is disposed at the second position, and the antenna portion contacts the second restriction portion and the third restriction portion.

2. The card reader according to claim 1 , wherein the first restricting portion, the second restricting portion, and the third restricting portion are protrusions that protrude from an inner surface of the housing toward the internal space.

3. At least one of the first restricting portion, the second restricting portion, and the third restricting portion has an arc shape when the inner surface of the housing is viewed from the front, 3. The card reader according to claim 1, wherein the portion of the antenna that comes into contact with the restricting portion is a recess that is arc-shaped when the inner surface of the housing is viewed from the front.

4. 3. The card reader according to claim 1, wherein the length of the side of the antenna unit that contacts the first restricting portion when the antenna unit is positioned at the first position is longer than the length from the second restricting portion to the third restricting portion.

5. the first restricting portion has an arc shape when the inner surface of the housing is viewed from the front, the recess is formed at one end of the antenna unit in the first direction when the antenna unit is disposed at the first position, The card reader according to claim 3 , wherein the recess is not formed at the other end of the antenna unit in the first direction when the antenna unit is disposed at the first position.

6. 3. A method for assembling the card reader according to claim 1 or 2, comprising the steps of: the adhesive layer is provided on a side of the antenna portion facing the inner surface of the housing; an end portion of the antenna portion on one side in the second direction is brought into contact with the third restricting portion, The adhesive layer is not attached to the inner surface of the housing, and the antenna unit is moved in the first direction. In the first aspect, when the antenna unit contacts the first restricting portion, the adhesive layer is adhered to the inner surface of the housing, In the second aspect, the method for assembling a card reader includes bonding the adhesive layer to the inner surface of the housing when the antenna portion contacts the second restriction portion.

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