JP3465535B2 - Card carrier - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a card reader or the like, and holds a card between a driving belt and a driven belt, and reciprocates the card in a card conveying path. About. 2. Description of the Related Art In general, this type of card transport apparatus has a drive belt stretched at both ends by a driving roller and a driven roller, and a pair of pinch rollers at both ends in contact with the drive belt. Driven belt is provided. The drive roller is connected to a forward / reverse rotatable electric motor, conveys the card inserted from the card insertion slot into the card conveyance path, and after processing the card data, reverses the rotation of the electric motor. The card is configured to run backward in the card transport path and eject the card from the card insertion slot. [0003] However, in the above-described conventional card transport device, the drive roller as a drive source for running the drive belt is one, so that it depends on the transport direction of the card. When the rotation direction of the drive roller is switched, the belt portion of the drive belt that contacts the card is switched between the tension side and the loose side. For this reason, the jitter characteristic on the loose side is worse than the jitter characteristic on the tight side, causing data reading failure. If an attempt is made to improve this by providing a tension increasing mechanism for increasing the tension of the drive belt between the driving roller and the driven roller, not only the number of parts increases, but also the structure becomes complicated, and the assembly work becomes complicated. It takes extra time for assembly. In addition, the size of the device in the thickness direction becomes large, which hinders the thinning of the device, and also reduces the maintainability. The present invention has been made in view of the above-mentioned conventional problems, and has as its object to shorten the assembly work time, improve the maintainability, and reduce the thickness of the card transporter. It is to provide a device. In order to achieve this object, a card transporting device according to the present invention comprises a driving belt stretched between a pair of rollers, and a pair of driving belts in contact with the driving belt. A card transport device, comprising a driven belt stretched between rollers, for reciprocating a card sandwiched between both belts by following the running of the belt, comprising two output shafts.
The motor that can rotate forward and backward.
A worm is attached to each output shaft, and this worm
The worm wheels that engage with each other
A pair of worms and worms
Each worm on each of the wheel engagement surfaces
Notches that do not transmit rotations in opposite directions from
It is a thing. Therefore, when the drive of both rollers is selected according to the transport direction of the card, the drive belt is always on the tension side. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of a card conveying device according to the present invention, FIG. 2A is a front view thereof, FIG. 1B is a sectional view taken along the line II (b) -II (b) in FIG. 1, and FIG. FIG. 4 is a view taken along the line IV in FIG. 1, and FIG. 4 is a view taken along the line IV in FIG. 1, showing the operation when returning the card. The card transport device indicated by reference numeral 1 as a whole is provided with a card transport plate 2 as a substantially flat frame that is formed in an elongated rectangular shape by a synthetic resin. On both side portions of the card transport plate 2, side plates 3 opposed to each other at an interval slightly longer than the width of the card 6.
The card transport plate 2 and the side plates 3 and 4 form a card transport path. Reference numeral 5 denotes a card insertion slot into which the card 6 is inserted into the card transport apparatus 1. As will be described later, when data of the inserted card is processed, the card 6 is returned from the card insertion slot 5. It is also configured as a card return slot. The punch board 7 is positioned on the side plate 3 near the card insertion slot 5 so as to face the upper surface of the card transport plate 2 with a space slightly larger than the thickness of the card 6.
The punch unit 8 is fitted into a large-diameter hole 5 a formed in the card transport plate 5 so as to face the punch table 7 and is fixed to the punch table 7. On the side of the side plate 3 substantially at the center of the card transport plate 2,
A rectangular window 10 is bored, and an elongated rectangular window 11 is bored from the side plate 4 side toward the rear side from substantially the center, and the upper surface of the window 10 is exposed from the card transport plate 2. A magnetic head 12 is provided. A shaft 14 is rotatably supported on both side plates 3 and 4 via bearings so as to cross the windows 10 and 11. This shaft 14 has a window 11
In response to the above, the pinch roller 15 is rotatably supported by being restricted from moving in the axial direction, and the touch roller 16 in contact with the magnetic head 12 is rotatably supported by being restricted from moving in the axial direction by the collar 17. ing. A pair of support portions 20a and 20b formed in a case shape whose upper part is opened outward are protruded from substantially the center and the rear end of the side plate 4. These support portions 20
An electric motor 24 capable of switching between forward and reverse rotation is fixed to the side portions 21a and 21b orthogonal to the side plates 4 of a and 20b. The motor shaft of the electric motor 24 projects from the front end and the rear end of the
4a, 24b, and these output shafts 24a, 24b
Are supported from the side portions 21a, 21b to the support portions 20a, 2 respectively.
0b. Since these output shafts 24a and 24b are formed by one motor shaft, they are configured to rotate in mutually opposite directions. Worms 25 and 26 are mounted on the output shafts 24a and 24b, respectively.
Worm wheel 31 meshing with each of 5, 26,
A shaft 32 is attached to each of the shafts 27a and 27b. One of the shafts 27a is rotatably supported by a side portion 22a of the support portion 20a parallel to the side plate 4 and the side plate 4 via bearings 28a and 29a, and one end is extended from the side plate 4 to the window 11, and this extension is provided. A drive roller 35 positioned on the front end side of the window 11 is mounted on the installation portion. The other shaft 27b is rotatably supported by a side portion 22b parallel to the side plate 4 of the support portion 20b and the side plate 4 via bearings 28b and 29b, and one end is extended from the side plate 4 to the window 11, and this extension is provided. A driven roller 37 positioned on the rear end side of the window 11 is mounted on the installation portion. The worm 25 and the teeth 25 of the worm 26
cutouts 25b, 2a in the tooth surfaces of the
6b are formed. Therefore, the worm 25 and the worm 26 are configured such that rotation is transmitted to the worm wheel 31 or the worm wheel 32 only when the worm 25 and the worm 26 are rotationally driven in directions opposite to each other with respect to the rotational direction of the output shafts 24a and 24b. . That is, the worm 25 transmits the rotation in the direction of the arrow D2 to the worm wheel 31 only when receiving the rotation driving in the direction of the arrow D1 from the output shaft 24a. Is not transmitted and the worm 25 idles. On the other hand, the worm 26 transmits the rotation in the direction of the arrow C2 to the worm wheel 32 only when receiving the rotation driving in the direction of the arrow C1 from the output shaft 24b. Is not transmitted and the worm 26 idles. A drive belt 44 facing the window 11 and having the pinch roller 15 attached thereto is stretched between the drive roller 35 and the driven roller 37. Below the window 11, three pinch rollers 46, 47, and 48 that are in contact with the drive roller 25, the driven roller 37, and the pinch roller 15 are provided on the lower surface of the card transport plate 5 via a bracket (not shown). It is rotatably supported by supported shafts 46a, 47a, 48a. A driven belt 50 with a pinch roller 48 attached thereto is stretched between the pinch rollers 46 and 47, and an upper belt portion 50 a of the driven belt 50 is in contact with a lower belt portion 44 a of the drive belt 44. This driven belt 5
A tension roller 47 rotatably supported by a shaft 49a is attached to the lower belt portion 50b of the first belt 50 so as to apply tension to the driven belt 50. Next, the operation of transporting a card in such a configuration will be described. When the card 6 is inserted from the card insertion slot 5 and the leading end of the card 6 comes into contact with both belts 44 and 50, the insertion of the card is detected by a detection means (not shown), and the electric motor 24 rotates in the forward direction. This rotation is transmitted to the worm 25 via the output shaft 24a so that the teeth 25a move in the direction C1 in FIG.
The worm 26 is connected to the worm 26 via the output shaft 24b.
The rotation that moves in the middle C1 direction is transmitted. Here, when the teeth 25a move in the arrow C1 direction, the worm 25 on the drive roller 35 side has a notch 25 in the tooth surface in the moving direction.
b, the teeth 3 of the worm wheel 31
1a, and the rotation from the electric motor 24 is not transmitted. On the other hand, when the teeth 26a of the worm 26 on the driven roller 37 side move in the direction of arrow C1, the teeth 26a mesh with the teeth 32a of the worm wheel 32, and the rotation of the worm wheel 32 in the direction of arrow C2 is transmitted to the worm wheel 32. Shaft 27
The driven roller 37 rotates in the direction of arrow C2 in FIG. The rotation of the driven roller 37 in the direction of the arrow C2 causes the lower belt portion 44a of the drive belt 44 to move in the direction of the arrow A.
The upper belt portion 5 of the driven belt 50
0a also follows and travels in the direction of arrow A, and the card 6 is conveyed in the direction of arrow A by being sandwiched between these two belts 44 and 50. At this time, the traveling of the lower belt portion 44a of the drive belt 44 in the direction of the arrow A is performed by the rotation of the driven roller 37 in the direction of the arrow C2, so that the lower belt portion 44a is on the tension side. The card 6 conveyed in the direction of arrow A reads the data recorded on the card 6 as it passes over the magnetic head 12, and is further conveyed in the direction of arrow A. When the card 6 is located on the side, the rotation of the electric motor 24 stops, and the card 6 also stops running. afterwards,
When the service is provided by the device provided with the card transport device 1 and the service is completed, the electric motor 24 rotates in the reverse direction. This rotation is transmitted to the worm 25 via the output shaft 24a, such that the teeth 25a move in the direction D1 in FIG. 3, and is transmitted to the worm 26 via the output shaft 24b. A rotation that moves in the direction is transmitted. Here, the worm 26 on the driven roller 37 side does not mesh with the teeth 321a of the worm wheel 32 because the notch 26b is provided on the tooth surface in the moving direction when the teeth 26a move in the arrow D1 direction. ,
The rotation from the electric motor 24 is not transmitted. On the other hand, when the teeth 25a of the worm 25 on the side of the drive roller 35 move in the direction of arrow D1, the teeth 25a mesh with the teeth 32a of the worm wheel 31, and the rotation in the direction of arrow D2 is transmitted to the worm wheel 31. Shaft 27
The drive roller 35 rotates in the direction of arrow D2 in FIG. Due to the rotation of the driving roller 35 in the direction of the arrow D2, the lower belt portion 44a of the driving belt 44 is moved to the arrow B direction.
The upper belt portion 5 of the driven belt 50
0a also follows and travels in the direction of arrow B, and the card 6 is conveyed in the direction of arrow B by being sandwiched between both belts 44 and 50. At this time, the traveling of the lower belt portion 44a of the drive belt 44 in the direction of arrow B is performed by the rotation of the drive roller 35 in the direction of arrow D2, so that the lower belt portion 44a is on the tight side. The card 6 conveyed in the direction of arrow B is rewritten on the magnetic head 12 in accordance with the service of the above-described apparatus, and the punch unit 8 is rewritten in accordance with the rewriting of the data. As a result, a punch hole as visual recognition information is punched and returned from the card insertion slot 5. As described above, since the lower belt portion 44a of the drive belt 44 is on the tension side when traveling in the directions of the arrows A and B, the card 6 has less speed fluctuation in traveling in the directions of the arrows A and B. It is transported at a stable speed. For this reason, defective reading or writing of data in the magnetic head 12 is prevented. Also, the lower belt portion 44a
Is always switched to the tension side by switching the rotational driving of the driving roller 35 and the driven roller 37, so that the conventionally required tension applying mechanism becomes unnecessary, so that the number of parts can be greatly reduced and the apparatus can be greatly reduced. Is made thinner.
In addition, since the drive roller 35 and the driven roller 37 are driven by one electric motor 24, the number of parts is greatly reduced. Also, a clutch means for switching rotation transmission to the driving roller 35 and the driven roller 37 is provided.
Notch 25 of teeth 25a, 26a of worms 25, 26
The number of parts does not increase due to the steps b and 26b. [0019] In the present embodiment, an example of a magnetic card as card 6 can also be applied to an IC card or the like various cards. As described above, according to the present invention, by selecting the drive of the drive device for both rollers in accordance with the card conveyance direction, the drive belt is always on the tension side. Since the tension increasing mechanism is not required, the assembling work is facilitated and the assembling work time is shortened, and the thickness can be reduced and the structure is simplified, so that the maintainability is improved. Also, since only one electric motor is required, the manufacturing cost is reduced.
Reduced. Also, since the number of parts does not increase,
Assembly becomes easy. [0021]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a card transport device according to the present invention. FIG. 2 shows a card transport device according to the present invention, wherein (a)
2 is a front view, and FIG. 2B is a cross-sectional view taken along the line II (a) -II (a) in FIG. FIG. 3 is an enlarged view as viewed from an arrow III in FIG. 1; FIG. 4 is an enlarged view as viewed from an arrow IV in FIG. 1; [Description of Signs] 1 ... Card transport device, 2 ... Card transport plate, 6 ... Card,
12 magnetic head, 24 electric motor, 25, 26 worm, 25a, 26a teeth, 25b, 26b notch, 31, 32 worm wheel, 35 drive roller, 37 driven roller, 44 drive belt , 44a... Lower belt portion.

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-8-124290 (JP, A) JP-A-5-96801 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G06K 13/07 G06K 13/05 G11B 17/00

Claims (1)

(57) [Claim 1] A drive belt stretched between a pair of rollers, and a driven belt which is in contact with the drive belt and stretches between the pair of rollers. in the card conveying apparatus for reciprocating conveying the nipped card to follow the travel of the belt between, one forward and reverse rotation friendly with two output shafts
Motors, each with its own output shaft.
Worm wheel that is fitted with a worm and meshes with this worm
Rollers are attached to the respective rotating shafts of the rollers,
Between the worm and the worm wheel
In each, the opposite direction from each worm
A card notch that does not transmit the rotation of the card.