JPS59220882A - Card reader - Google Patents

Abstract

PURPOSE:To read a card accurately even if dust, dirt, or the like is stuck to punched parts by reading information, which is punched on an information plate, as a binary signal with the action of a proximity switch. CONSTITUTION:An information plate 2 where a metallic thin plate is punched in prescribed positions to record information is set along one of plane plates 11a and 11b, which are parallel with the information plate 2 of a frame body. Proximity switches 21, (22-25)-(51-55) are provided in a matrix on the outside end face of the plane plate 11a. The plane plate 11a is provided with a prismatic permanent magnet 13 near a setting hole 15 and is provided with permanent magnets 14a and 14b in the side opposite to the setting hole 15. When the information plate 2 is set to a prescribed position, a proximity switch 60 is operated, and information punched on the information plate 2 is read as a binary signal.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recorded information reading device that can be used even in manufacturing plants and the like where there is a lot of dust and dirt.

A card reader, which is one form of a conventional information reading device, is constituted by an optical switch such as a photocoupler. Such conventional card readers are susceptible to dirt, dust, powder, etc. adhering to the perforated part of the punch card, which is information recording paper, and to the light receiving part of the card reader that detects light. If dust or the like adheres, problems such as malfunction of information detection or inability to detect information will occur.

Therefore, the conventional card soda that optically detects the information recording paper perforated in a paper card has the disadvantage that it cannot be used in a manufacturing factory where there is a lot of dust and dirt.

The present invention has been made in order to improve the above-mentioned drawbacks, and provides a cart that can be used in manufacturing plants, etc., where there are many particles, fineness, dust, etc.・The purpose is to be a companion to the leader.

The present invention also provides an information board that records information based on the presence or absence of perforations provided at predetermined positions in a thin metal plate; a frame body whose plane is tilted to the right in at least six planes; a plurality of sensors arranged on parallel planes of the frame body to detect the magnitude of magnetic coupling or capacitive coupling; 2 (it is concerned with the switching device that operates and the car 1~ reader that consists of it).

The recording cart read by the card reader of the present invention is a thin sheet of metal. This metal thin plate number L is pre-drilled at predetermined positions according to predetermined information. Recorded information is determined by the presence or absence of perforations at a5 in predetermined positions of the thin metal plate.

A thin metal plate on which information is recorded on the presence or absence of these perforations is hereinafter referred to as an information board. This information board preferably has high magnetic permeability when the IZ sensor detects magnetic coupling. This information board is supported by a frame that forms part of the card reader. At least one side of the information board is supported by a frame with at least one parallel plane parallel to the information board. Further, it is preferable that a magnet for attracting and supporting the metal information board is disposed on the parallel plane of the frame. The magnets are preferably placed at the four corners or in a U-shape at the periphery of a parallel plane. This magnet may be a permanent magnet or a coil with an iron core may be used. In this way, it is sufficient that the frame has at least one parallel plane parallel to the inserted information board.

Further, the frame body may be configured in a box-shape having a plane facing this and having an insertion hole for the information board on the side surface.

A sensor is provided on parallel planes of the frame to detect the magnitude of magnetic coupling or capacitance coupling. If the sensor is a magnetic sensor that detects the magnitude of magnetic coupling,
For example, one can be used that constantly induces high-frequency magnetic flux and detects changes in reluctance caused by the magnetic flux of the mouth passing through the information board. That is, when the sensor is provided and there is no perforation of the information plate at the 1=position and a flat metal portion is provided, the reluctance becomes small. For this reason, the amount of magnetic coupling becomes more intense than when the perforated portion is disposed in this sensor portion. Therefore, this can be detected as the amount of change in inductance.

-7'j, a sensor that detects the magnitude of capacitive coupling can also be used. When the metal part of the information board is placed on a part of this sensor, the capacitance becomes large, and if the perforated part of the information board corresponds to this sensor part, the electrostatic capacitance increases.
This is smaller than in the previous case.

In this way, a plurality of sensors for detecting the magnitude of magnetic coupling or capacitive coupling are provided on the parallel planes (Tii) of the frame.

Further, a switching device is connected to the sensor, which performs two-way operation (A on and off) depending on the output value of the sensor. This switching device does not necessarily need to be provided on a plane parallel to the frame.

This card reader can read information boards &! It's definitely Sera 1~
After that, the information can be read out, or the information board can be slid against the frame and the recorded information can be read out in chronological order as electrical signals.

Hereinafter, the present invention will be explained in more detail based on specific examples.

FIG. 1 is a perspective view of an information board made of a thin metal plate on which information is recorded one by one to be read by a card reader according to an embodiment of the present invention. The information board is made of iron in the shape of a dial and has one perforation at a predetermined position. For example, if the signal read from the perforated part is 1 and the signal read from the unperforated part is O, and the binary code is converted from the bottom row in the figure, the 11th column will have a binary code of 11111. The 12th column represents the binary code of 10101]-code, and the 13th column represents the binary code of 01101. In this way, the information board is perforated at predetermined positions and information is stored therein.

FIG. 2 is a perspective view showing the configuration of the card reader of this embodiment. Also, Figure 3 shows m-m- in the perspective view of Figure 2.
It is a sectional view in the direction of arrows. The frame 10 of the J-reader of this embodiment is a parallel plane plate 11a parallel to the end surface of the information board 2.
and parallel plane plates 11b facing each other, and a prismatic spacer 12a installed at the peripheral edge of these plates, , 12b.A rectangular parallelepiped-shaped space is formed inside the frame 10.This space has a frontage on the side wall of the frame 10, and the opening thereof is connected to the information board 2. This is the mounting hole 15 for mounting the
The pair of parallel plane plates 11a, 111) near the mounting hole 15 have cross-shaped parts 11Qa, 110b bent in a - shape.The outer field surface of the parallel plane plate 11a has a proximity switch. is installed in a predetermined position.The proximity switch is arranged in a 71 helix shape, and 21.22 to 25.
Proximity switches, including proximity switches (not shown) 51~
It consists of 55 proximity switches. On the other hand, the parallel plane plate 11a
A prismatic permanent magnet 13 is provided in the vicinity of the mounting hole 15, and permanent magnets 14a and 14I] are arranged on the opposite side of the mounting hole 15. These permanent magnets 13.14. a and 141) (1) When the information board 2 is inserted through the mounting hole 15, the information board 2 is suctioned to the parallel plane plate 118 and held in a predetermined position.The parallel plane plate 11a , the four parallel plane plates 11b facing it, and the spacers 12a and 121 interposed between them] are fixed by screws 1 (3a, 16b) and nuts 17a and 117b screwed into them.

Further, a proximity switch 60 provided at the end of the parallel plane plate 11a is a switch for detecting that the information board 2 has been attached to a predetermined end. That is, when the information board is installed at a predetermined position, the proximity switch 60 for position detection is activated, and the output signal of this proximity switch is
This is the information reading start signal.

Figure 4 is an explanatory configuration diagram showing the operation of the proximity switch used in this card reader. A detection coil 212 that converts the magnetic flux into a magnetic flux with a frequency of
The information board 2 is turned on and the proximity switch 21
When detecting the perforation drilled in this information board, the magnetic flux generated by the detection /, -l file 212 (J is the same as when the information board is not sent to the cart reader 1. Therefore, There is no change in the inductance of the detection coil in A, and a constant transmission signal can be sent to the interval IJ. It can be read from the connected terminals 225aE! and 225b.

- If the part detected by the 15z proximity switch 21 corresponds to a metal part of the information board 2 that is not perforated, the magnetic flux induced by the detection coil 212 will move around the information board. As a result, the inductance of the detection coil becomes distorted, and the oscillation circuit goes out of tune, stopping oscillation. The switching element 224 detects this one-way oscillation and becomes open. The signal is transmitted to the lead wires 225a and 2
25b.

As described above, the card reader of this embodiment is unable to convert the information stored in the information board into a 2 filj signal by the action of the proximity switch.

In this example, a sensor that detects the magnitude of magnetic coupling and a switching device that covers the switching action according to the output of the sensor are integrated as one component. However, at least a magnetic wire for detecting the magnitude of magnetic coupling is provided on the parallel plane plate, and its output is sent to an electronic device not installed on the parallel plane plate. In addition, although a pair of parallel plane plates parallel to each other are used in this embodiment, it is not necessary to use a pair of mutually parallel plane plates, and at least one parallel plane plate parallel to the information plate is used. It is sufficient if it has the face plate 11a.

Next, a second embodiment will be explained.

FIG. 5 shows the configuration of a card reader according to the second embodiment. This is a picture of the 4th celebration. FIG. 6 is an explanatory diagram of the configuration of the information board 2 read thereby. Figure 7 [Timing explaining the read signal of the card reader in 9 cases of Yodoji 11
- It is. Card leak' (parallel plane plate 11a on which the 3L1 proximity switch is arranged and parallel plane plate 11b opposite to it)
, outside/7-seat 16 to the right. Parallel plane plate 11a, 1
1b and the rail section 17 provided at the bottom allows the information board to be
A guide groove is formed with iEJ+-=J". In addition, a window is formed in a part of the parallel plane plates 11a and 11b, and a 1cm pair of ""-ra 130a and 130b made of a rubber elastic material are arranged. There is.

The pair of rollers makes the information board 2 slidable while pressing it with elastic force. The roller 130a is mounted on fixed plates 132a and 133 provided in the outer case 16 in the vertical direction.
a, each of which is pivotally supported and fixed to be rotatable. Proximity switches 21 to 25 as information board, 2 slides
The information is read by In this case, the information board 2 must have a continuous perforation shown in line 81 as a timing signal, as shown in FIG. The 82nd to R4th rows are perforated portions in which signals indicating information are stored. The signal thus read becomes as shown in the timing diagram of FIG. The information signal is R2, R3 in synchronization with the timing signal shown in FIG. 7(a).
, R4 signals are detected.

In summary, the present invention provides a card that detects recorded information from an information board on which a metal book is temporarily perforated and information is recorded thereon, using a register that detects the magnitude of magnetic coupling or capacitive coupling.・Be a leader.

Therefore, even if dust, carbon, dirt, dust, etc. adhere to the perforated portion, since magnetic or electrostatic coupling is utilized, it will not cause a malfunction such as in an optical sensor. Therefore, this card reader can be effectively used even in manufacturing plants where there is a lot of dust.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an information board of a card reader according to the first embodiment. FIG. 2 is a perspective view showing the structure of the card reader of the first embodiment. Figure 3 shows the same card leak in Figure 2.
It is a cross-sectional view of the arrow. FIG. 4 shows the InJ embodiment using -C [Explanation 4.1 for explaining the operation of the proximity switch. i
It is the cause. FIG. 5 is a perspective view of a card reader according to a second embodiment of the present invention. FIG. 6 is a configuration diagram of the information board used in the second embodiment. Figure 7 is the second
It is a timing signal-1- explaining the read signal of the card reader of an embodiment. 2... Information board 10... Frame 11a, 111)... Parallel plane board 21-55.60... Proximity switch = 130a, 1
30b-5 Applicant for blindness detection Toyoda Gosei Co., Ltd. agent Patent attorney Hirodo Okawa Patent attorney Shudo Fujitani Attorney Akio Maruyama Figure 3 Figure 4 No'24 Figure 5 Figure 6 Sliding □ Figure 7 (d) R4

Claims (4)

[Claims] (1) An information board that records information depending on the presence or absence of perforations provided in thin metal plates p at predetermined positions, and a frame that supports at least one side of the information board and has at least one parallel plane parallel to the information board. and arranged on a parallel plane of the frame body,
A plurality of sensors detect the magnitude of magnetic coupling or electrostatic coupling, and a binary signal is generated depending on the value detected by the sensors.
A card reader consisting of a switching device and a card reader. (2) The 7J-reader according to claim 1, wherein the sensor and the switching device are proximity switches formed integrally with each other. (3) The card reader according to claim 1, wherein the frame body is provided with a magnet that attracts and supports the information board on the parallel plane. (4) The frame body has a rail member on which the information board can slide, and a pair of roll members that hold the rail member in rotational contact with each other. Card reader listed.