JPH0248925Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a conveyance transmission mechanism in a card reader that can prevent gear collision, breakage, missing teeth, etc. during opening and closing operations of a card conveyance path.

[Prior art]

In recent years, various cards on which information is recorded, such as magnetic cards and punch cards, have come to be used for inputting information, and card readers have become widely used in various fields accordingly.

For example, in magnetic card type public telephones, a commercially available magnetic card is used instead of coins, data on the number of calls is recorded in advance on the magnetic card, and the magnetic card is inserted into the slot. is stored in a card reader, subtracted from the data of the magnetic gear according to the actual call power, and according to this result, the data of the residual power is updated and recorded on the magnetic card and returned.

By the way, many magnetic cards are thin and flexible, and there is a risk that the corners or side edges of the card may be bent or the entire card may be bent. When such a deformed card is guided into the card conveyance path in the card reader described above, it is likely that the card will jam on the way, so the jammed card can be easily taken out, and the magnetic head and conveyor belt can easily remove the jammed card. It is necessary to make it possible to easily carry out maintenance and inspections, etc. Therefore, the card conveyance path is generally configured to be openable and closable in an attempt to solve the above-mentioned problems, but the gears that make up the conveyance transmission mechanism of the conveyor belt collide with each other or come into contact with each other during the opening/closing operation, especially during the closing operation. This causes damage, missing teeth, etc., making it impossible to smoothly and reliably transmit the rotation from the drive motor to the driven side, which is a major cause of failure.

[Summary of the idea]

The present invention has been made in view of the above-mentioned points, and a driven belt is rotatably arranged relative to the drive belt so that the card conveyance path can be freely opened and closed. A transmission gear is provided that transmits rotation through an intermediate gear to a driven gear fixed to a shaft of an intake roller that takes in cards, and this transmission gear is rotated by sliding friction between the belts when opening and closing the card conveyance path. The present invention provides a conveyance transmission mechanism in a card reader that has an extremely simple configuration in which gears can be smoothly and reliably engaged with each other, and can prevent collisions, breakage, missing teeth, etc.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

〔Example〕

Fig. 1 is a side view showing an embodiment of the transport transmission mechanism according to the present invention applied to a card reader of a magnetic card type public telephone, Fig. 2 is a plan view of the magnetic card, and Fig. 3 is the same as Fig. 1. - line sectional view. In these figures, 1 is a telephone housing, inside which a magnetic card 2 is taken into a card transport path 3,
A card reader 4 for reading, writing, and confirming data is provided. The front surface of the telephone housing 1 is provided with a card insertion slot 5, a card return slot 6, a push-button dial 7, etc., and a receiver (not shown) is hooked onto a foot lever or the like on the left side of the housing 1. It has been arranged.

The card reader 4 includes a pair of left and right outer frames 10A, 10B, rotating frames 11A, 11B, and a fixed frame 12, which are integrally connected by distance rods (not shown).
A, 12B, the rotating frame 11A,
11B and fixed frames 12A and 12B are arranged in front and behind each other with a predetermined distance maintained between the pair of outer frames 10A and 10B. The upper ends of the rotating frames 11A and 11B are horizontal rotating shafts 13 supported between the outer frames 10A and 10B.
By being rotatably supported by and normally housed between the outer frames 10A and 10B,
The rear end surfaces of the frames 11A, 11B and the front end surfaces of the respective fixed frames 12A, 12B are closely opposed to each other to form a slight gap, and this gap constitutes a part of the card conveyance path 3.

The card conveyance path 3 includes a horizontal card taking path 3A that takes in the magnetic card 2 inserted from the card insertion slot 5, a curved path 3B that changes the direction of the magnetic card 2 downward, and a curved path 3B that changes the direction of the magnetic card 2 downward. Card reciprocating path 3C that slopes continuously downward
This card reciprocating path 3
A card return passageway 3D is provided above C, which curves with a smaller curvature than the curved passageway 3B and reaches the card return opening 7. The card intake passage 3
On the back side of A, there is a stopper 16 and a take-in roller 17.
A pressure roller 18 is provided corresponding to the take-in roller 17. The pressing roller 18 is attached to the tip of a lever 20 that is rotatably supported by a shaft 19, and is normally located above the taking-in roller 17, and is pressed against the lever when the magnetic card 2 is taken in. 20 is lowered by being rotated counterclockwise in FIG. 1 by a solenoid (not shown). Then, the magnetic card 2, which had been inserted into the take-in passage 3A and had come into contact with the stopper 16 to be prevented from entering any further, has its tip pushed down by the pressure roller 18 and comes into pressure contact with the take-in roller 17. . Rotation from the motor 22 is transmitted to the roller 17 via a conveyance transmission mechanism 21, which will be described later, so that the magnetic card 2 is taken into the card reader 4, and the card is reciprocated through the curved passage 3B. You will be led to passage 3C.

As the conveyance means for the magnetic card 2, a plurality of rollers 23a, 23b, 23c, 23d, 24a,
24b, and conveyor belts 26 and 27 stretched between these rollers. Both belts 2
6 and 27 are disposed facing each other, but the front conveyor belt 26 is connected to the rotating frames 11A and 1
1B and constitutes a driven belt, while the rear conveyor belt 27 is disposed on the fixed frame 12.
A and 12B are arranged to constitute a drive belt. The rotation of the motor 22 is caused by a roller 30 fixed to its output shaft 29 and a shaft 3 of the roller 24b.
The signal is transmitted to the shaft 31 via a belt 33 stretched between pulleys 32 fixed to the shaft 31, and causes the conveyor belt 27 to revolve. Power is transmitted to the conveyor belt 26 by the frictional force between the conveyor belt 26 and the belt 27, and the magnetic card 2 is held between the two belts 26 and 27 and reciprocated up and down.

In addition, 35a and 35b are tension rollers, 3
6 (Fig. 3) is an auxiliary roller. Further, a magnetic head 37 for reading, writing, and confirming the call frequency recorded on the magnetic card 2 is provided approximately in the center of the card reciprocating path 3C in the conveyance direction;
A pressure roller 38 is provided to be pressure-bonded to this. Reference numeral 40 indicates a punch mechanism for punching a small hole 41 (FIG. 2) indicative of the remaining call frequency at a predetermined portion of the magnetic card 2 at the end of a call; The card detection sensor detects the presence or absence of the magnetic card 2, and the detection signal from this sensor 42 controls operations such as taking in, transporting, and returning the magnetic card 2.

Now, in the card reader 4 configured as described above, the conveyance transmission mechanism 21 according to the present invention
transmits the rotation of the conveyor belt 26 to the take-in roller 17, and therefore, as shown in FIG. A driven gear 53 is fixed to the transmission gear 51 and meshes with the transmission gear 51 via an intermediate gear 54. The intermediate gear 54 integrally includes a small diameter gear 54a that meshes with the transmission gear 51 and a large diameter gear 54b that meshes with the driven gear 53, and a shaft 55 thereof is rotatable by the outer frame 10B. It is pivoted on.

Here, since the transmission gear 51 is disposed on the rotation frames 11A and 11B, the rotation shaft 13 is moved as shown by the chain line 11' in FIG. 1 during maintenance, inspection, parts replacement, card jam, etc. When the rotating frames 11A, 11B are pivoted forward to open the card conveyance path 3, the small diameter gear 54a
When the card conveyance path 3 is closed, the two engage with each other again. At this time, the transmission gear 51 and the small diameter gear 54a
The teeth may not mesh properly, causing the teeth to collide with each other and cause damage.

However, in the present invention, the rotating frame 11
When opening A, 11B, the driven conveyor belt 26 of the roller 23a portion slides against the driving conveyor belt 27 as it moves in the direction of arrow A, and then separates from the belt 27, so during this rubbing period. The conveyor belt 26 rotates, and the rollers 23a, 23b,
Rotate 23c and 23d. Similarly, when closing the rotating frames 11A and 11B, the driven conveyor belt 26 rubs against the drive conveyor belt 27 and returns to its original position, so the belt 26 rotates in the opposite direction to the above, and the rollers 23a, 23b, 23c, and 23d are rotated in the direction of arrow B in FIG. When the driven conveyance belt 26 rotates in this manner, the transmission gear 51 is rotated, so that it reliably meshes with the small diameter gear 54a and the teeth are prevented from colliding with each other. Therefore, the rotation from the motor 22 can be reliably transmitted to the take-in gear 17 without damage or missing teeth, and the take-in operation of the magnetic card 2 can be made smooth and reliable.

Note that the sliding movement of the driving side conveying belt 27 by the driven side conveying belt 26 is made possible because the load reciprocating passage 3C is inclined at an appropriate angle. Further, the intermediate gear 44 is required to make the rotation directions of the take-in roller 17 and the conveyor belt 26 equal.

Furthermore, although the above embodiment has been described with reference to a case where it is applied to a card reader of a magnetic card type public telephone, the present invention is of course not limited to this and can be applied to conveyor belts of various devices and devices.

[Effect of idea]

As explained above, according to the conveyance transmission mechanism in the card reader according to the present invention, when opening and closing the card conveyance path, the driven belt slides against the drive belt,
The transmission gear attached to one of the roller shafts of the driven belt is rotated accordingly, so when the transmission gear re-meshes with the intermediate gear, the teeth may collide with each other and cause damage or missing teeth. It is possible to mesh smoothly and reliably without any friction, and to improve the durability of the gear, which has a very large practical effect.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an embodiment of the present invention applied to a card reader of a magnetic card type public telephone, Fig. 2 is a plan view of the magnetic card, and Fig. 3 is a first embodiment of the present invention.
It is a figure-line sectional view. 2...Magnetic card, 3...Card transport path, 4...
...Card reader, 10A, 10B... Outer frame, 11A, 11B... Rotating frame, 12A,
12B... Fixed frame, 17... Take-in roller, 21... Conveyance transmission mechanism, 23a to 23d, 2
4a, 24b...roller, 26...transport belt on driven side, 27...transport belt on drive side, 51...
Transmission gear, 53...driven gear, 54...intermediate gear.

Claims (1)

[Scope of utility model registration request] It includes a drive belt and a driven belt that are disposed along the card conveyance path and work together to pinch and hold the card by coming into contact with each other, and a take-in roller that takes in the card by transmitting rotation from the driven belt. , a frame on which the driven belt is arranged is rotatably arranged with respect to the frame on the drive belt side so that the card conveyance path can be opened and closed, and a transmission gear is arranged on one roller shaft of the driven belt. and a driven gear that normally meshes with the transmission gear via an intermediate gear is disposed on the shaft of the take-in roller, and the transmission gear is configured to cause the driven belt to engage the drive belt during opening/closing operations of the card conveyance path. A conveyance transmission mechanism in a card reader, characterized in that it is rotated by sliding and is engaged with and separated from the intermediate gear.