JPS622701Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field of the Invention> The present invention relates to a card emboss detection device suitable for detecting the presence or absence of embossing on the surface of a personal identification card, for example, and furthermore, detecting the approximate number of characters. .

<Prior art and its problems> This type of conventional emboss detection device has a plate spring type lever with a strain gauge glued on it, placed above the card path, and shapes the waveform of the output of the strain gauge in contact with the card surface. , which detected displacement due to embossing. However, in such a device, the leaf spring type lever requires pretreatment in order to bond the strain gauge, and bonding such a device is technically difficult, making it unsuitable for mass production. Moreover, it takes time and effort to adjust the output, which is one of the reasons why the manufacturing cost of the device is high.

<Purpose of the invention> The present invention solves the conventional inconveniences by detecting the embossed protrusion or recess of the card with a detection lever, and magnifies the amount of swinging displacement of the detection lever to the swinging lever. It is possible to reduce costs by simplifying work and omitting adjustment work, and
The present invention provides a novel emboss detection device that is effective in smoothing detection operations and improving detection accuracy.

<Description of Embodiments> The illustrated example shows the inside of a card usage device, in which drive rollers 2 and 2a are provided in a frame 1 so as to freely rotate in correspondence with the card path, and drive rollers 2 and 2a are provided with drive rollers 2 and 2a. The belts 21 are connected to each other so that they can be rotated in forward and reverse directions.

The base end of a bracket 3 is pivotally fixed to the frame 1 so as to be freely swingable, and the bracket 3 has a leading end extending in the card conveyance direction, and a driven roller 4 is rotatably mounted in correspondence with the driving roller 2. , the bracket 3 is energized by a spring 31 whose base end is fixed to the frame 1, and the driven roller 4 presses against the driving roller 2 through the conveyance card with an optimum pressure, and the driven roller 4 rotates according to the transfer of the card. Do what you want.

The bracket 3 is equipped with an emboss detection device 5 according to the present invention. The emboss detection device 5
A pivot shaft 32 is attached to the bracket 3 located on the carry-in side of the driven roller 4 and perpendicular to the card running surface, and a plurality of detection levers 6, 6, 6 and Swinging levers 7, 7, 7 for expanding the amount of swinging displacement of the detection lever are pivotally fixed on the same axis. The detection lever 6 has pivot walls 61 bent oppositely on both sides of a band-shaped metal plate aligned with the embossing, and the pivot walls are pivoted to the pivot shaft 32. The actuating pieces 63 are each formed a little shorter than the detecting piece 62, and the embossed detecting piece 62
is always located below and perpendicular to the card transport surface.

The swinging levers 7 that form a pair with each detection lever 6 are belt-shaped levers with a constant width and length, and similar pivot walls 71 are formed on both sides of the base end to fit between the pivot walls of the detection levers. This pivot wall 71 is engaged between the pivot walls 61 of the detection lever, and is pivotably pivoted to the same pivot shaft 32. The swinging lever 7 is disposed along the lower part of the bracket 3 supporting the driven roller, and is always positioned at a contact portion 34 on the lower surface of the bracket 3 by a spring 33, but the detection lever 7 is rotated by the card passage. When the lever moves and the emboss detection piece 62 rises due to the emboss convex portion, the operating piece 63 applies downward pressure near the pivot of the swinging lever 7, causing the tip of the lever 7 to make a large movement. A magnet plate 81 is attached to the tip of each swing lever 7, and a Hall element 82 is disposed on the frame 1 so as to face each magnet plate 81, thereby configuring the displacement detection mechanism 8. The displacement detection mechanism 8 is not limited to a combination of a magnet plate and a Hall element, but may also be a combination of a magnet and a reed switch, or even an optical means such as a photo sensor.

Note that the detection device of the present invention can of course be implemented in the embossed concave portion formed on the back side of the card by the embossed convex portion, and in this case, the driving roller is placed above the card conveyance surface, and the driven roller and the present device are placed below. Deploy it on the side.

However, before the card is carried in, the detection lever 6 is in a state in which the operating piece 63 is located above and the detection piece 62 is located below with respect to the pivot shaft 32, as shown in FIG. It is in. Now, when the inserted card 9 is conveyed between the rollers 2 and 4, the card 9 pushes up the detection piece 62 hanging down on the path and rotates the lever 6. When the tip of the detection piece 62 reaches the top surface of the card 9, the actuating piece 63 comes into contact with the top surface of the swing lever 7, and at this time the swing lever 7 does not rotate and stands by for emboss detection.

When the movement of the card progresses and the embossed part 91 passes the detection piece 62 as shown in FIG. Press down near the pivot part. As a result, the swing lever 7
The amount of floating displacement of the detection piece 62 due to the embossed convex portion is obtained by expanding in proportion to the length ratio of the detection piece 62 and the swinging lever 7, and the displacement detection mechanism 8 detects the presence or absence of the embossment. The number of characters can be detected accurately.

After the card has passed, as shown in FIG. 1, the detection lever 6 has a detection piece 62 hanging down perpendicular to the card conveying surface, and the swing lever 7 has returned to its original state. When the return card 9 moves backward, as shown in FIG. After the card passes, the state returns to the state shown in FIG. 1 and waits for the next card to pass.

<Effects of the invention> As described above, the present invention provides a detection lever that swings in contact with the emboss in the card path, and further connects the detection lever to a swinging lever to increase the movement of the lever. Since the displacement detection mechanism is used for detection, the swing lever accurately and reliably magnifies the slight displacement of the detection lever, thereby greatly improving the accuracy of detecting the presence or absence of embossment and the number of characters. Moreover,
Unlike devices using conventional strain gauges, this device does not require any dangerous adjustments during manufacturing, and can be manufactured through simple assembly work, thereby achieving the effects of achieving the purpose of the invention, such as achieving significant cost reductions. have.

[Brief explanation of the drawing]

Figure 1 is a front view showing the emboss detection device part, Figure 2 is a cross-sectional view along the line shown in Figure 1, and Figure 3 is a sectional view along the line shown in Figure 1.
The figure is a front view of the emboss detection state, and FIG. 4 is a front view of the card when it is retracted. 6...detection lever, 7...swing lever, 5...
Emboss detection device, 9... Card, 8... Detection mechanism, 91... Emboss.

Claims (1)

[Scope of utility model registration request] The embossed convex part of the card is arranged in the card passage, and the embossed convex part of the card has a detection lever that swings according to the concave part, a swinging lever whose base end is pivotally fixed to the pivot of the detection lever and which expands the amount of swinging displacement of the detection lever. A card emboss detection device equipped with a displacement detection mechanism located at the tip of a moving lever.