JPS6121705Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a data reading device used in a so-called electronic lock system, etc., which uses a card recorded with specific data using an optical recording medium as a key. It is something.

There is a key system that uses holograms, but in this key system, specific data is recorded in advance on a card using an optical recording medium, and the card is used as data when entering or exiting a room. insert it into the data reader,
A data reading device reads the data recorded on the card, and if there is no error in the data, the entrance/exit door of the room is unlocked.

By the way, there are various models of data reading devices used in such key systems. In the case of a structure with an insertion/ejection port, it is equipped with a case having a card insertion/ejection port and a data reading unit stored in the case, and in the case of an automatic type. When the card is inserted from the slot, the card is sent to the data reading unit by the card transfer unit and the data is read. The card is configured to be sent back to the insertion/ejection port by a transfer unit, and in the case of a manual type, the data is read during the process of inserting the card.
Normally, when the card has been inserted to its insertion limit, data reading has finished and the card can be pulled out by hand from the insertion/ejection opening.

Automatic cards that use power to transfer cards have the advantage of being easy to insert and remove cards and have high reading accuracy, but have the disadvantage of high product costs; Manual types are also widely used. However, with this manual type, when inserting and removing the card, especially when inserting the card where data is being read, camera shake is added to the card, resulting in poor data reading accuracy. The drawback was low reliability.

The present invention has been devised in view of the above circumstances, and its purpose is to provide a data reading device that reads data recorded on a card inserted through the insertion/ejection opening. It is arranged to be movable back and forth between a data reading start position separated by a predetermined distance and a data reading end position closer to the insertion/ejection port than this position, and from the reading start position to the reading end position. A data reading unit is attached to the data reading unit to read the data of the card in the process of moving the card to the card, and the data reading unit is attached to the data reading unit to start reading the data from the reading end position with the card. A locking part that locks the card inserted through the insertion/ejection opening and separates from the card at the reading start position, and a data reading part that moves the data reading part from the reading start position to the reading end position. When reading data on the card, the data reading section is moved along the card while the card is in a stationary state, and the data reading section is moved along the card. A data reading device that prevents data misreading caused by misalignment of the card, reads accurate and reliable data, and has a greatly simplified configuration. It is on offer.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to drawings showing embodiments thereof. Fig. 1 is an external view showing the installed state of the data reading device according to the present invention (hereinafter referred to as the proposed device). The dividing wall, C, shows the card. 11 is a box-shaped case of the data reading device, and the front part has an insertion/ejection opening 1 for the card C.
2a, a front panel 12 with an indicator lamp 12b;
The front panel 12 is embedded in the wall W with the front panel 12 visible through the wall surface. The card C has a rectangular shape, and is constructed by arranging and fixing a plurality of optical recording media C' in a straight line along one long side of the card C, on which specific data is recorded. The data is inserted manually through the insertion/removal opening 12a of the front panel 12, and the data is read by the data reading section 4 disposed inside the case 11. The data is read by lighting the indicator lamp 12b. When the card C is known to be finished, the card C is manually pulled out from the slot 12a.

Figure 2 is a front sectional view of the proposed device, and Figure 3 is a sectional view of the device.
Figure - Cross-sectional view along the line, Figure 4 is of Figure 2 -
5 is an explanatory diagram of the operation when the card is inserted, FIG. 6 is an enlarged perspective view of the locking part attached to the data reading section, and FIG. 7 is the same. FIG. 8 is an enlarged perspective view of the braking section attached to the data reading section, and inside the case 11 are the guide section 3 for the card C and the data reading section for the card C. The data reading section 4, the locking section 5 that engages and disengages from the card C to move the data reading section 4 from the data reading end position to the reading start position, and the data reading section 4 that moves the data reading section 4 from the data reading end position to the reading start position. The moving speed of the data reading unit 4 is regulated in the process of moving the means 6 for moving from the start position to the data reading end position and the data reading unit 4 from the data reading start position to the data reading end position. A braking unit 7 and the like are provided.

As is clear from FIGS. 2 to 5, the guide portion 3 of the card C includes a pair of guide members 31, which are provided with guide grooves 31a and 32a on opposing side surfaces, respectively, into which both side edges of the card C are fitted. It is composed of 32 etc. Both guide members 31 and 32 have their guide grooves 31
A and 32a are arranged parallel to each other with a distance slightly narrower than the width of the card C, and support members 33 and 32a are installed in the case 11 between the vicinity of the front panel 12 and the vicinity of the rear plate 15, respectively. It is arranged using 34. Each of the supporting members 33 and 34 is made of angle material, and the flanges on each side are fixed to the left and right side plates 13 and 14 of the case 11, and the other flanges are attached from the left and right side plates 13 and 14. The guide members 31 and 32 are protruded in opposite directions, and guide members 31 and 32 are disposed on the protruding flanges.
That is, the guide member 31 inserts the setscrews 31b, 31b into the holes vertically passing through the guide member 31 into the support member 33.
The guide member 32 is fixed to the flange of the support member 34 by screwing into the set screws 32b, 32b, which are inserted into widthwise elongated holes 32c, 32c, which also pass through the guide member 32 vertically. By being screwed into the guide member 31, the guide member 31 is disposed so as to be movable toward and away from the guide member 31. Further, a pair of guide pins 32d, 32d protrudes from the right side plate 14 of the case toward the back surface of the guide member 32, that is, the surface opposite to the surface on which the guide groove 32a is formed. One end is attached to the back of the guide member 32, and the other end is attached to the guide pin 32.
Coil spring 32 that comes into contact with the base end of d, 32d
e, 32e are fitted and inserted, and the guide member 32 is always held by the coil springs 32e, 32e.
It is urged and held toward the first side. As a result, the card C inserted from the insertion/ejection opening 12a has both side edges aligned with the guide grooves 31 of the guide members 31 and 32.
Although the guide member 32 is moved toward the inner depth of the case 11 while being fitted into the guide members 32a and 32a, since the guide member 32 is always urged toward the guide member 31 side,
Since both side lines of the card C are moved in close contact with the groove bottoms of the guide grooves 31a and 32a, wobbling of the card C is suppressed, and the card C
The movement area of Card C will be properly regulated.
can be moved without misalignment in the width direction and in the upward and downward directions. S ₁ , S ₂
are all sensors that detect card C,
The front and rear ends of the guide member 31, that is, the ends closer to the front panel 12 side and the rear plate 15 side, are arranged so as to face the side walls of the guide groove 31a, respectively, and both sensors S ₁ and S ₂ are arranged so as to face the side walls of the guide groove 31a. - When the code C is detected, a light emitting element 41b in the data reading section, which will be described later.
In addition to emitting a light emission instruction signal to the sensor, an excitation signal is emitted to each solenoid 53, 72 in the locking part 5 and the braking part 7.
When the card C is no longer detected in either _S1 or _S2 , a stop signal is generated in place of the above-mentioned light emission and light reception instruction signals, and a demagnetization signal is generated in place of the excitation signal.

The data reading section 4 is composed of a lens barrel section 41, a dark case section 42, etc., and the dark case section 42 has both sleeve sections 42 thereof.
, 42r, which penetrates in the front and rear directions.
g, 42g inside the bearing members 42h, 42h
The screw rod 44 and the guide rod 4 with
5, and is supported so as to be movable in the front and rear directions within the case 11 below the movement area of the card C. Further, the lens barrel section 41 is connected to the dark housing section 4.
The car is held by a support arm 43 erected on 2.
A data storage device located above the card movement area, facing the dark case 42 across the card movement area, and separated from the insertion/ejection opening 12a by a predetermined distance in the front and back direction together with the dark case 42. It is arranged to be able to reciprocate along the movement range of the optical recording medium C' in the card C between a reading start position and a data reading end position closer to the insertion/ejection opening 12a. There is. The support arm 43 is L-shaped, and its lower end is connected to a longitudinally long hole 34 bored in the flange of the support member 34.
a, and is erected on the upper right side of the dark housing part 42, and its upper end extends above the movement area of the card C, and the lens barrel part 41 is fitted into a ring part 43a provided at the end thereof. ing. Inside the lens barrel section 41 is a second
As shown in the figure, a lens 41a is disposed at its lower end, and a light receiving element 41b, which is positioned on the optical axis of the lens 41a and serves as a light source for hologram reproduction, is disposed at its upper end. A lens 42a is arranged at the bottom of the lens barrel section 41 to coincide with the optical axis of the lens 41a, and a plurality of light receiving elements 42 are arranged at the bottom of the lens barrel section 41.
b are arranged in a substantially arc shape. As a result, the light emitted from the light emitting element 41b is transmitted to the lens 4.
The light beam is projected onto the optical recording medium C' of the card C via the light beam 1a, is transmitted through this, and is diffracted by the lens 42a, after which it is imaged onto each light-receiving element 42b. Each light-receiving element 42b is provided with an electric circuit (not shown), which reads data from the formed image and determines its suitability.
A screw rod 44 and a guide rod 45 that support the dark case 42 are disposed below the movement range of the card C and parallel to the guide members 31 and 32.
Reference numeral 5 has a circular cross section, and its front and rear ends are fixed to the front panel 12 and rear plate 15 of the case 11, respectively, and a screw rod 44 extends from the vicinity of the front end to the vicinity of the rear end on its circumferential surface. A thread 44a is formed,
The front end has a sleeve with a collar 44b fitted thereto.
It is pivotally fitted to a support pin 44d protruding from the rear surface of the front panel 12 via a tab 44c, and its rear end is pivotally supported by a bearing 44e provided on the rear plate 15.
It is rotatable around the axis. Said three
A coil spring 44f whose one end is connected to the collar 44b and the other end is connected to the support pin 44d is inserted between the collar 44b of the bolt 44c and the support pin 44d. When the screw rod 44 is rotated, the coil spring 44f
The rotation of the screw rod 44 is braked by this.

The data reading section 4 as described above is normally kept in standby at the data reading end position as shown in FIGS. When the card C is inserted, the insertion force of the card C is used to cause the data reading section 4 to read the data shown in FIG.
The locking part 5 engages and disengages from the card C to move it to the data reading start position, and the data reading part 4 is separated from the card C at the data reading start position, and the inserted card C Means 6 for moving the data reading section 4 from the data reading start position to the data reading end position while reading the data on the card C in a stationary state without moving the data reading section 4; - data reading section 4 -
In the process of moving from the data reading start position to the data reading end position, a braking unit 7 and the like are provided to move at a speed suitable for data reading.

The locking portion 5 is a locking member 5 as shown in FIGS.
1. It is composed of a movable stopper 52, a solenoid 53, etc. The locking member 51 includes a large diameter short cylindrical portion 51a, a protrusion 51b provided on the circumferential surface of the short cylindrical portion 51a, a small diameter cylindrical portion 51c concentrically connected to one end of the short cylindrical portion 51a, and the like. In other words, the card C
It is pivotally fitted to a shaft 55 in a direction perpendicular to the direction of movement of the shaft 55 so as to be rotatable about its axis. A coil spring 56 is also fitted into the shaft 55 in parallel with the locking member 51, and one end of the coil spring 56 is connected to the cylindrical portion 51 of the locking member 51.
c, and the other end is locked to the upper surface of the dark casing 42, and the locking member 51 is always urged to rotate in the direction of the arrow shown in FIG. 6 with a weak force. The protrusion 51b of the locking member 51 has an opening angle when viewed from the side.
It is formed in a fan shape of 90 degrees, and one side in the circumferential direction is always upright and faces into the moving area of the card C, and the other side in the circumferential direction is approximately horizontal.
It is prevented from rotating in any direction around the shaft 55 by a fixed stopper and a movable stopper 52 (not shown). The movable stopper 52 is formed into a thin rectangular plate shape, and has long holes 52a, 52a extending in the longitudinal direction at two locations in the middle part thereof. The provided guide pins 52b, 52b are engaged, and the base end is connected to the operating rod 5 of the solenoid 3.
3a, and further includes the locking member 5 at the tip.
A locking piece 52c that locks onto the other circumferential side surface of the first projection 51b is provided, and a tension spring 57 is tensioned between the locking piece 52c and the bracket 54. When the solenoid 53 is demagnetized, the movable stopper 52 is moved in the direction of the arrow shown in FIG. 6 by the tension spring 57, and its locking piece 52c locks with the other circumferential end surface of the projection 51b. When the solenoid 53 is energized,
The movable stopper 52 is pulled from the position shown in FIG. 6 to the position shown in FIG. 7 against the tension spring 57,
The locking piece 52c is retracted from a position facing the other circumferential side of the protrusion 51b.

As described above, the solenoid 53 is in a state where neither of the sensors S ₁ and S ₂ is detecting the card C, in other words, it is in a standby state where the card C is not inserted, or the card C is inserted. is demagnetized when the insertion limit has not yet been reached, and the posture of the locking member 51 is as shown in FIG. Insertion/removal port 1
When the card C is inserted from 2a, the front edge of the card C abuts one circumferential side of the protrusion 51b of the locking member 51, and as the card C is inserted, The entire data reading section 4 is moved from the position shown in FIGS. 3 and 4, that is, the data reading end position, toward the data reading start position as shown in FIG. Then, the card C is pushed in to the insertion limit, and both sensors S ₁ and S ₂ are connected to the card C.
When the solenoid 53 is detected, the solenoid 53 is energized, the movable stopper 52 retreats from the rotation range of the protrusion 51b as shown in FIG. Due to the insertion force of the card C and the insertion force of the card C, the locking member 51 is
5, the data reading section 4 is released from the card C, and the protrusion 51b is moved toward the card C by the action of the spiral spring 63 as shown in FIG.
In the state of being pressed down, only the data reading section 4 begins to return in the direction of the arrow toward the insertion/ejection port 12a.

The means 6 for moving the data reading section 4 from its data reading start position to its data reading end position is
A spiral spring 63 is interposed in a storage case 62 provided at the tip of a shaft portion 61 protruding from a position near the front edge of the right side plate 14 in the case 11, and one end of the spiral spring 63 is attached to the shaft portion 61. , and the other end is connected under the right side sleeve 42r of the dark housing section 42, and the action of the spiral spring 63 normally holds the data reading section 4 at the data reading end position. In addition, in the process in which the data reading section 4 is moved by the card C to the data reading start position against the action of the spiral spring 63, a pullback force is gradually accumulated, and the protrusion 51b is moved against the cover. When it is separated from the front edge of the door C, the action of the spring spring 63 whose stored force is released pulls the data reading section 4 back to the data reading end position.

The control unit 7, which regulates the moving speed of the data reading unit 4 while the data reading unit 4 is pulled back from the data reading start position to the data reading end position by the spiral spring 63, is housed in a dark case. Screw rod 4 supporting part 42
4. Follower 7 along the thread 44a of the threaded rod 44
1 and a solenoid 72 that brings the follower 71 into contact with and away from the thread 44a. The follower 71 is disposed in a recess 42m formed in the sleeve part 42 of the dark housing part 42 so that a screw rod 44 passing through the sleeve part 42 is partially exposed in the middle, and has a screw rod 44 extending therethrough in the longitudinal direction. Extending long hole 71a,
71a, and the long holes 71a, 71a are provided with guide pins 71b, 71 protruding from the wall surface of the recess 42m.
b is engaged, and the base end is inserted into the sleeve part 4 of the dark housing part 42.
2. A locking piece 71c is connected to the operating rod 72a of the solenoid 72 fixed to the lower side surface, and further has a locking piece 71c at the tip that engages in a groove in the thread 44a of the screw rod 44.
It is equipped with The operating rod 72a of the solenoid 72 has a coil spring 72b whose one end is locked to the operating rod 72a and whose other end is in contact with the main body of the solenoid 72.
is inserted and the solenoid 72 is demagnetized, the action of the coil spring 72b pushes up the operating rod 72a, and therefore the follower 71, and maintains it in a state where it is separated from the screw rod 44. Excited coil spring 72
The follower 71 is connected to the screw thread 44 of the screw rod 44 against b.
It is designed so that it can be inserted into a.

As mentioned above, the solenoid 72 is activated when the sensors S ₁ and S ₂ do not detect the card C.
During the standby state in which the card C is not inserted, and while the card C is inserted from the insertion/ejection port 12a but its leading edge does not reach the terminal sensor _S2 , the card C is maintained in a demagnetized state. -71 is maintained in a detached state from the screw rod 44, and when the card C reaches its insertion limit and is detected by the sensors _S1 and _S2 , the solenoid 72 is energized and the follower 71 is removed from the screw rod 44. It comes into contact with the thread 44a of. car
When the card C is detected by the sensors S ₁ and S ₂ , the protrusion 51b on the locking member 51 detects the card C as described above.
The force of the spring spring 63 causes the data reading unit 4 to be pulled back from the data reading start position to the data reading end position. Follower 71 is screwed 4
As a result of contacting the thread 44a of 4, the mainspring spring 6
The pullback force 3 is a force that rotates the screw rod 44 through the data reading section 4, particularly its dark case 42 and follower 71, and a force that stores the coil spring 44f as the screw rod 44 rotates. acts as a braking force, and the moving speed of the data reading section 47 is reduced to a speed suitable for data reading.

FIGS. 9A to 9C are time charts showing the operation timing of each part of the present device, and the operation of the present device will be explained below based on this chart.

In the present device configured as described above, the data reading unit 4 reads the card C by the tension of the spiral spring 63 in the standby state where the card C is not inserted.
The front end surface of the dark housing portion 42 is drawn toward the insertion/ejection port 12a side, and the front end surface of the dark housing portion 42 is aligned with the collar portion 4 of the sleeve at the tip of the screw rod 44.
It is stopped in a state where it is in contact with 4c. Since the sensors S ₁ and S ₂ naturally do not detect the card C, the solenoids 53 and 72 are demagnetized, and the movable stopper 52 connected to the operating rod 53a of the solenoid 53 is a locking member by a tension spring. The protrusion 51b in the solenoid 51 is held in an upright state facing the movement range of the card C, and the other side of the protrusion 51b in the circumferential direction is held in an upright state so as to face the movement range of the card C. The follower 71 connected to the operating rod 72a is connected to the screw rod 44 by a coil spring 72b.
It is maintained in a state where it is moved upward and separated from the screw rod 44a.

When the card C is inserted by hand from the insertion/ejection opening 12a, the front edge of the card C hits the protrusion 51b on the locking member 51 at the position where the card C is inserted by the required length from the insertion/ejection opening 12a, and the card C is inserted into the insertion/ejection opening 12a by hand. When the card C is pushed in further, the entire data reading section 4 including the dark case 42 and lens barrel section 41 is pushed by the card C and is pushed out of the case 11 from the insertion/ejection opening 12a side against the spring spring 63. It is moved toward the rear wall 15, in other words, from the data reading end position to the data reading start position (FIG. 9A). Card C on the way is a sensor
When the _card C is inserted deeper and reaches its insertion limit, the data reading section 4 reaches the data reading start position, and at the same time the card
Sensor S ₂ detects C (FIG. 9 C). sensor
When both S ₁ and S ₂ detect the card C, a light emitting signal is emitted to the light emitting element 41b (Fig. 9 h), and an excitation signal is emitted to the solenoids 53 and 72 (Fig. 9 Figures 2 and 5). When the solenoid 53 is energized, the movable stopper 52 is retracted from the rotation range of the protrusion 51b, and the protrusion 51b
When the solenoid 72 is energized and the follower 71 loses its locking force against the screw rod 4 (FIG. 9), the solenoid 72 is energized.
4 (FIG. 9-G). While the data reading unit 4 moves from the data reading end position to the data reading start position, the power stored in the spring spring 63 is released, and the data reading unit 4 reads data from the card C. The follower is separated and moved from the data reading start position to the data reading end position.
71 to rotate the screw rod 44 and the braking force due to the acting force of the coil spring 44f.
Start moving at a speed suitable for reading data. The light emitted from the light emitting element 41b passes through the lens 41a and is sequentially projected onto the optical recording medium C' of the card C, and the light transmitted through the optical recording medium C' passes through the lens 42a and undergoes transmission diffraction. The light is then imaged onto each light receiving element 42b (FIG. 9).

When the data reading unit 4 has moved to the data reading end position, the indicator lamp 12b is lit to indicate the data reading result and the completion of data reading by the electric circuit connected to the light receiving element 42b. (Figure 9). If the card C is manually pulled out from the slot 12a, the sensor _S2 will not detect the card C, and the light emitting element 41b will receive a light emission stop signal, and the solenoids 53 and 72 will receive a degaussing signal. , the light emitting elements 41b are turned off (FIG. 9 H), and the solenoids 53 and 72 are demagnetized (FIG. 9 D and H).

When the solenoid 63 is demagnetized, the movable stopper 5
2 is moved toward the locked position with respect to the protrusion 51b by the action of the tension spring 57, and the follower 71 is separated from the thread 44a of the screw rod 44 by the action of the coil spring 72b (FIG. 9). . When the card C is withdrawn, the sensor S ₁ also does not detect the card C, and the protrusion 5
1b is released from being held down by the card C and rises to a position where it is locked with the card C again by the biasing force of the coil spring 56, and the stopper 52 also moves to the protrusion 5.
It advances into the rotation range of 1b and stops it from rotating (Fig. 9).

As described above, in the present device, the card inserted from the insertion/ejection opening is locked, the data reading section is moved together, and when the card insertion is finished, the card is brought to a stationary state. The data reading unit is moved along the card surface to eliminate misreading of data due to card vibration or positional shift when reading data from the card. The present invention has excellent effects, such as greatly improving the reliability of data reading.

[Brief explanation of the drawing]

Fig. 1 is an external view showing the installed state of the proposed device, Fig. 2 is a front sectional view, and Fig. 3 is a - of Fig. 2.
4 is a sectional view taken along the - line in FIG. 2, FIG. 5 is an explanatory diagram of the operation with the card inserted, FIG. 6 is an enlarged perspective view of the locking part, and FIG. 7 8 is an enlarged perspective view of the brake section, and FIG. 9 is a time chart showing the order of operation of each part of the present device. 1...Data reading device, 3...Guide section, 4...
Data reading section, 5...Locking section, 6...Means, 7...
... Braking part, 31 ... Guide member, 31a ... Guide groove, 32 ... Guide member, 32a ... Guide groove, 41 ... Lens barrel part, 41a ... Lens, 41b
...Light emitting element, 42...Dark housing, 42a...Lens, 42b...Light receiving element, 51...Locking member, 5
1b...Protrusion, 52...Movable stopper, 53...
Solenoid, 61...Shaft, 63...Spring spring, 71...Follower, 72...Solenoid,
C...Card, C'...Optical recording medium, _S1 , _S2 ...
...Sensor.

Claims (1)

[Scope of utility model registration request] In a data reading device that reads data recorded on a card inserted through an insertion/ejection opening, there is a data reading start position separated from the insertion/ejection opening by a predetermined distance, and a position further than this position from the insertion/ejection opening. data that is arranged so as to be movable back and forth between a data reading end position close to the data reading position, and the data on the card is read in the process of moving from the reading start position to the reading end position. a reading unit, attached to the data reading unit, and locking to a card inserted through an insertion/ejection opening in order to move the data reading unit from a reading end position to a reading start position with the card; A data reading device characterized by comprising: a locking portion that separates from the card at a reading start position; and means for moving the data reading portion from the reading start position to the reading end position.