JP2584037Y2 - Card detector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card detecting device for detecting the thickness of a card and the thickness of a bent card used in a card reader.

[0002]

2. Description of the Related Art In recent years, automatic cash dispensers have become unmanned, and there has been a demand for improved card reader reliability. The present applicant has proposed a mechanism for detecting the card thickness in Japanese Utility Model Application Laid-Open No. 60-90605. With this proposed mechanism, the credit card can be detected as normal, and the thin prepaid card can be detected as abnormal by the detecting section so as not to be fed into the recording / reading device. There is a disadvantage that it cannot be detected accurately and lacks reliability. In order to solve the above-mentioned drawbacks, the present applicant has proposed a card detection mechanism capable of accurately detecting the thickness of a bent card and having improved reliability in Japanese Utility Model Laid-Open No. 3-6503. did. In this proposed mechanism, the contact portion of a ceramic ball or the like is inserted into the upper and lower holes of the guide frame, and the contact portion is applied to the card to detect the thickness of the card. When the ball is moved between the contact portions, the rotation of the ball itself does not operate smoothly, and when the card is run, there is a drawback that the surface of the card is easily scratched in a line. .

[0003]

The problem to be solved is that a streak-like scratch is easily formed on the card surface hit by the contact portion made of a ball. SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks, the object of the present invention is to detect the thickness of a card and the thickness of a bent card, thereby improving reliability, and at the same time, a card detecting device that does not damage the card surface. It is to propose an attached card reader.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a retractable contact portion which extends into a card passage from a card thickness direction and a corresponding portion are integrated or driven with the corresponding portion, and the card passage is provided through the card passage. In a card detection mechanism comprising a detection lever disposed opposite to the other, a spring for biasing each detection lever in the approaching direction, and a sensor for detecting a displacement of the detection lever by a predetermined amount, the contact portion described above is used. The point is that the bearing is used.

[0005]

When the card 3 is inserted into the card passage 2a, the contact portion 7 and the contact portion 7 'are vertically moved by the extension coil spring 15, respectively.
The detection lever 4 is rotated clockwise about the pin 12 as a fulcrum, and the detection lever 5 is rotated counterclockwise about the pin 13 as a fulcrum. By this rotation, the other end 4a of the detection lever 4 is moved upward, and the other end 5a of the detection lever 5 is moved downward. When the card 3 is inserted into the card passage 2a, if the contact portions 7, 7 'are constituted by ball bearings, the ball 29 will come into contact with the contact portions 7, 7'.
And the outer ring 30 is rotated, and the thickness of the card 3 and the bending
The thickness of the card can be detected to improve the reliability, and the surface of the card is not damaged, and damage to the IC terminal 31 is reduced.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
1 is a sectional front view of a main part of a card reader showing a position of the card detecting device in a cross section, FIG. 2 is a plan view of the card detecting device, and FIG. 3 is an enlarged sectional front view of a main part of FIG. 4 is a cross-sectional side view of a main part of a card reader showing a card detecting device, FIG. 5 is a cross-sectional side view of an enlarged main part of FIG. 4, FIG. 6 is a side view of a main part of the card reader,
7 is a partial perspective view of the guide frame and the card, FIG. 8 is a perspective view of the hitting portion support member, FIG. 9 is a sectional front view of a main portion of the hitting portion support member, and FIG. It is a partial section side view.

1 to 6, a guide frame 2 is mounted on a frame plate 1.
Is fixed to the guide frame 2 and the card passage of the card 3
2a is formed. Card slot for guide frame 2
The upper and lower sides of the 2b side are cross-shaped through holes from the vertical direction as shown in FIG.
2c and 2d are drilled. One end of each of detection levers 4 and 5 is rotatably supported by pins 12 and 13 on L-shaped support plates 10 and 11 fixed to the upper and lower surfaces of the guide frame 2 with screws. The detection levers -4 and 5 are bent in the middle as shown in FIG. 2 and the other ends 4a and 5a are projected outside the frame plate 1 through the long holes 1a and 1b, respectively. Tongue pieces 6a of support members 6, 6 'are fixed to one end sides of the detection levers 4, 5 by welding or the like, respectively.
The supporting members 6, 6 'support hitting portions 7, 7' formed of ball bearings on shafts 14, 14, respectively. Support member 6,
6 'is inserted into the cross-shaped through holes 2c and 2d as shown in FIGS.

The contact surfaces 4b and 5b of the detection levers-4 and 5 are applied to the upper surface of the contact portion 7 and the lower surface of the contact portion 7 ', respectively.
Spring hooks 4c and 5c are formed on the opposite sides of the contact surfaces 4b and 5b of the detection levers -4 and 5 so that one end of each of the tension coil springs 15 and 16 is hooked. The contact portion 7 'is urged in the approach direction. Furthermore, guide frame
L-shaped spring hooking plates 17 and 18 are fixed to the upper and lower surfaces of the arm 2 with screws, and the other ends of the tension coil springs 15 and 16 are hooked, so that the contact portions 7 and 7 ′ extend from the card thickness direction. And it is provided so that it can retreat freely.

Pins 19 and 20 are provided on the left side of the frame plate 1 in FIGS.
, The movable sensor plate 8 is slidably supported up and down.
An adjustment plate 21 to which the sensor holding member 9 is fixed is attached to the movable sensor plate 8 with a screw 22. As shown in FIGS. 1, 3, and 6, the movable sensor plate 8 is formed with a slot 8a and a through hole 8b. The other end 4a of the detection lever-4 protruding outside the frame plate 1 is inserted into the slot 8a. The other end 5a of the detection lever 5 is inserted into the through hole 8b. Further, at the other end of the detection lever-4, a shielding part 4d is formed to protrude downward, and the shielding part 4d faces the slit 9a of the sensor holding member 9. A cutout 4e is formed in the shielding portion 4d. A photo sensor and the like are housed in the sensor holding member 9. FIGS. 1 and 3 show a state in which the card 3 is inserted into the card passage 2a. When the card 3 is not inserted into the card passage 2a, the light path of the photosensor is blocked by the blocking portion 5d as shown by a two-dot chain line.

As shown in FIGS. 1 to 3 and FIGS. 8 to 10, the supporting members 6 and 6 'are formed in a U-shape by a supporting portion 6b and both legs 6c and 6c, and a tongue piece 6a is attached to the supporting portion 6b. It is bent. Through holes 6d, 6d are formed in both legs 6c, 6c, and a shaft 14 perpendicular to the card running direction is inserted. E-rings 23 are fitted at both ends of the shaft 14 to prevent the shaft 14 from coming off. An E-ring 24 and an inner ring 25 of an abutment portion 7 composed of a ball bearing, an E-ring 26, a coil spring 27, and an E-ring 28 are fitted around the middle outer periphery of the shaft 14. The contact portion 7 composed of a ball bearing is urged by a coil spring 27. The contact portion 7 composed of a ball bearing comprises a ball 29 mounted on the outer periphery of the inner race 25 and an outer race 30 on the outer periphery. The outer circumference of the outer ring 30 is formed on the spherical surface 7a and has a certain width. The outer ring 30 may be made of stainless steel alone, or may be formed by coating only the spherical surface 7a of the surface with a resin such as polyacetal. The contact portion 7 'is formed similarly to the contact portion 7.

As shown in FIG. 7, a magnetic stripe 3a is provided on one side surface of the card 3, and an IC card in which an IC is embedded and an IC terminal 31 is exposed on the card surface. And a normal magnetic card having only a magnetic stripe.

When the card 3 is inserted into the card passage 2a,
The contact portion 7 and the contact portion 7 'are vertically extended coil springs respectively.
Pushed up and down against 15, 16 and expanded,
The detection lever-4 is rotated clockwise around the pin 12 as a fulcrum.
5 is rotated counterclockwise about the pin 13 as a fulcrum. By this rotation, the other end 4a of the detection lever 4 is moved upward, and the other end of the detection lever 5 is moved upward.
5a is moved down. By moving the other end 5a of the detection lever 5 downward, the movable sensor plate 8 is moved downward by the dimension α in FIGS. 1 and 3, and simultaneously the sensor holding member 9 is moved downward. When the other end 4a of the detection lever 4 is rotated upward by the dimension β, the closing part 4d is moved upward, so that when the card 3 has a predetermined thickness, the position shown in FIG. The notch 4e is positioned in the optical path of the photosensor as indicated by the solid line, and the blocking of the optical path of the photosensor by the blocking unit 4d is released.

When the thickness of the card 3 is not the predetermined thickness,
When the amount of rotation of the detection levers 4 and 5 is small or large, the optical path of the photosensor is blocked by the blocking unit 4d.
It is detected that the displacement is not the predetermined amount of 4 or 5, and the sensor can determine whether the thickness is the predetermined thickness. Further, when the card 3 is a bent card, for example, when the card 3 is curved upward, the contact portions 7, 7 'are moved upward with the card 3 interposed therebetween. When the thickness of the card 3 is a predetermined thickness, the notch 4e is located in the optical path of the photosensor, and the interruption of the optical path of the photosensor by the blocking part 4d is released, so that the thickness of the card 3 is accurate. Is measured.

When the card 3 is inserted into the card passage 2a,
When the contact portions 7 and 7 'are constituted by ball bearings, when the card 3 hits the contact portions 7 and 7', the ball 29 and the outer ring 30 are rotated, and the thickness and the thickness of the card 3 are reduced. The thickness of the bent card can be detected to improve the reliability, the surface of the card is not damaged, and in the case of an IC card, the IC terminal 31
Damage to the device is reduced.

In the above description, the outer periphery of the outer ring 30 of the contact portions 7, 7 'formed of ball bearings is formed on the spherical surface 7a, but may be formed on a substantially flat ring. In the above description,
The contact portions 7, 7 'made up of ball bearings are supported on the support members 6, 6' by shafts 14, 14, and the support members 6, 7 '
6 'is integrated with the detection levers-4 and 5;
The shafts 14, 14 may be directly supported on the shafts 4, 5, and the shafts 14, 14 may support the contact portions 7, 7 'formed of ball bearings.

[0016]

[Effect of the Invention] Since the present invention is configured as described above,
When the card is inserted into the card passage, if the contact portion is constituted by a ball bearing, when the card hits the contact portion, the ball of the contact portion is rotated, and the card is rotated. A card which has excellent effects in practical use, such as being able to detect the thickness and the thickness of a bent card to improve reliability and to be able to detect the card thickness without damaging the card surface. A detection device can be provided.

[Brief description of the drawings]

FIG. 1 is a card showing a position of a card detecting device in a cross section.
It is a principal part sectional front view of a da.

FIG. 2 is a plan view of the card detection device.

FIG. 3 is an enlarged sectional front view of a main part of FIG.

FIG. 4 is a cross-sectional side view of a main part of a card reader showing the card detection device.

FIG. 5 is an enlarged cross-sectional side view of an essential part of FIG. 4;

FIG. 6 is a side view of a main part of the card reader.

FIG. 7 is a partial perspective view of a guide frame and a card.

FIG. 8 is a perspective view of a contact portion support member.

FIG. 9 is a sectional front view of a main part of the contact portion support member.

FIG. 10 is a sectional side view of a main part of the contact portion support member.

[Explanation of symbols]

 2a Card passage 3 Card 4, 5 Detection lever 7, 7 'Contact part 9 Sensor holding member 14 Shaft orthogonal to card running direction 15, 16 Spring 25, 29, 30 Ball bearing components

Claims (3)

(57) [Scope of request for utility model registration] 1. A retractable contact portion which advances into a card passage from the card thickness direction, and a detection lever which is integrally or driven by a corresponding portion and is disposed to face the card passage through the card passage. In a card detection mechanism comprising a spring for urging each detection lever in the approaching direction and a sensor for detecting a displacement of the detection lever by a predetermined amount, the contact portion is a bearing. Card detection device. 2. A card detecting device according to claim 1, wherein an axis parallel to the card surface and orthogonal to the card running direction is supported by the detection lever, and a bearing at a contact portion is fitted to this axis. . 3. The card detecting device according to claim 1, wherein the outer periphery of the bearing at the contact portion is spherical.