JP3824769B2 - Card width alignment structure of reader / writer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a card width adjusting structure in a reader / writer of an information storage capability.
[0002]
[Prior art]
Conventionally, a reader / writer for transferring information by accessing an information storage unit comprising a magnetic stripe, bar code, hologram, etc. provided on the card with an access head while conveying the information storage card to the card conveyance path In order to ensure that the head is scanned over the data track of the card, a card width adjusting structure is provided. In actuality, the head is biased from the side edge opposite to the head so that the position of the head is brought into sliding contact with the reference surface of one side edge of the card.
[0003]
On the other hand, in the conventional width-shifting structure, the card is separated from the reference surface depending on the urging force or the card conveying force, so that the load management of the urging spring is troublesome.
[0004]
Therefore, the present the same applicant, to Japanese Patent Application No. 8-126505 in (Japanese Patent Laid-Open No. 9-288719) specification, to press the card at the card conveying path in a width direction thereof to the conveying direction and Cartesian spring it has been proposed to integrate the access head to biased pressing member and the card.
[0005]
According to this structure, since the card and the pressing member are always in contact with each other, the alignment between the information storage unit of the card and the access head is surely and easily performed.
[0006]
[Problems to be solved by the invention]
However, in actual equipment, there is a dimensional tolerance between the width of the card transport path and the width of the card. Therefore, the width dimensional tolerance of the card transport path is the smallest, and the card is inserted when the width dimensional tolerance of the card is the maximum. Set so that it can pass between the card guide widths, for example, when the card transport path width dimension tolerance is the maximum, and the card width dimension tolerance is the minimum, the card transport path is in a plane parallel to its main surface. In some cases, the information storage unit of the card passes through the access head at an angle, which may cause a read / write error.
[0007]
The present invention has been made in view of the above-described problems of the prior art, and its main purpose is to simplify the alignment and spring load management during assembly and maintenance with a simple structure and to manage the card. It is an object of the present invention to provide a card width-aligning structure for a reader / writer that can reliably perform alignment and orientation of an access head to a card without hindering conveyance.
[0008]
[Means for Solving the Problems]
According to the present invention, the above-mentioned object is integrally coupled to the pressing member 16 that presses and biases the information storage card C in the card transport path 1a with the spring means 20 in the width direction orthogonal to the transport direction. The reader / writer body (casing 1) includes an access head 2, a pressing member and a support portion for the access head, and the support portion is movable in a width direction orthogonal to the transport direction of the information storage card. and a supported base member 18b, the card biassing structure interrogator for transmitting and receiving access have access head to the information storage section information while conveying the information storage card into the card transport path there are, the pressing member and the access head is supported on the base member so as tiltably by the information storage card parallel to the major plane Is achieved by providing a card biassing structure interrogator, characterized in that it is.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0010]
FIG. 1A to FIG. 1C, FIG. 2A, and FIG. 2B show the main structure of a reader / writer to which the present invention is applied. In the casing 1 of the reader / writer main body, an information storage unit is provided with an information storage unit formed of a magnetic stripe, a barcode, a hologram, or the like on the main surface thereof from right to left or left to right in FIG. A card transport path 1a for transporting the card C is defined. Further, an access head 2 that is integrated with a movable member 18a described later is provided at an intermediate portion of the card transport path 1a so as to face the transport path. A head roller 3 is rotatably supported at a position facing the access head 2. The shaft member 4 that supports the head roller 3 is supported by the casing 1 and is driven by a motor (not shown). Further, a conveying roller 5 is provided at the tip of the shaft member 4, and a pressure roller 6 biased toward the card conveying path 1 a by a leaf spring 7 is provided at a position facing the conveying roller 5. A shaft member 8 is supported by the casing 1 on the downstream side of the card transport path 1a, that is, on the left side in FIG. 2A, and a transport roller 9 is provided at the tip of the shaft member 8. A pulley 13 is provided on the base end side of the shaft member 8 and is driven by a motor (not shown) via a pulley 10 and a belt 11 that are also provided on the base end of the shaft member 4. A pressure roller 14 urged toward the card conveyance path 1 a by a leaf spring 15 is provided at a position facing the conveyance roller 9.
[0011]
On the other hand, one side edge of the card transport path 1a forms a side surface 1b formed with priority given to slipping over accuracy. The side surface 1b is used as a reference surface when the card is conveyed. Further, the other side edge side of the card transport path 1a, is supported by the casing 1 with a pin 17 so as tiltably a predetermined range about the substantially widthwise direction and the card C which is perpendicular to the main surface of the card C A base member 18b is provided. A movable member 18a is supported on the tilting end portion of the base member with a pin 22 so as to be tiltable in a plane parallel to the main surface of the card C. The movable member 18a, the card pressing member 16 is integrally provided. Here, the movable member 18a as described above forms an integral since integral with access head 2, the access head 2 and the card pressing member 16 via a variable dynamic member 18a.
The movable member 18a is biased by the springs 19 and 20 via the base member 18b in the direction in which the access head 2 approaches the main surface of the card C and the direction in which the card pressing member 16 contacts one side edge of the card C. Has been. As a result, the access head 2 reliably contacts the main surface of the card C, and the card pressing member 16 reliably contacts one side edge of the card C, so that the information storage unit of the card C and the access head 2 are securely connected. Face up.
[0012]
In order to actually convey the card C, the card pressing member 16 is sandwiched between the conveying roller 5 and the pressure roller 6 and the conveying roller 9 and the pressure roller 14 while abutting one side edge of the card C as shown in FIG. Transport from right to left or from left to right.
[0013]
FIG. 3 shows a state where the card C travels while tilting along the card transport path 1a. The card pressing member 16 is brought into contact with the side edge of the inclined card C by the biasing force of the spring 20. At this time, since the access head 2 is integrated with the card pressing member 16, the access head 2 faces the information storage unit of the card C without any inclination, and the center of the access head 2 and the center of the information storage unit are No slippage occurs.
[0014]
FIG. 4 shows a state where the card C travels along the side surface 1b along the card transport path 1a. Also in this case, the card pressing member 16 is in contact with the side edge of the card C at a position where the card pressing member 16 is biased by the biasing force of the spring 20. At this time, since the access head 2 is integrated with the card pressing member 16, the access head 2 faces the information storage unit of the card C without any inclination, and the center of the access head 2 and the center of the information storage unit are No slippage occurs.
[0015]
In addition, the said effect | action is acquired regardless of the distance of the pin 17 as the fulcrum of the access head 2 and the card | curd pressing member 16, and the base member 18b. Moreover, the press member 16 should just be the length which can contact | adhere so that it may face the side edge of the card | curd C directly. For example, by increasing the length of the card pressing direction of the card pressing member 16 in the card conveying direction, when the spring 20 is applied with the same load, the wear of the pressing member due to friction with the card shearing surface is reduced, or An effect of preventing buckling of a card having low rigidity such as paper can also be obtained. Further, since no azimuth angle is generated between the information recording unit on the card and the access head, the reading performance is not deteriorated. In addition, it goes without saying that the tilting range of the movable member 18a is determined by a stopper or the like so as not to tilt more than necessary.
[0016]
FIG. 5 is a view showing a modified example of the above configuration, in which the access head 2 and the card pressing member 16 are integrated with a base member 28b supported by the casing 1 so as to be movable in a direction perpendicular to the card C conveyance direction. The movable member 28a is supported to be tiltable. The other structure is the same as that of the said structure.
[0017]
【The invention's effect】
As evidenced by the above description, according to the card the centering structure interrogator according to the invention, biasing with spring means in order to press the information storage card at the card conveying path in a width direction thereof to the conveying direction and Cartesian The access head is integrated with the press member and is supported so as to be tiltable in a plane parallel to the main surface of the card. Positioning and orientation can be reliably and easily performed, and the occurrence of data reading / writing errors can be suppressed.
[Brief description of the drawings]
FIG. 1A is a plan view showing a main structure of a reader / writer to which the present invention is applied, FIG. 1B is a side cross-sectional view taken along line II of FIG. 1A, and FIG. .
2A is a cross-sectional view taken along line II-II in FIG. 1B, and FIG. 2B is a cross-sectional view taken along line III-III in FIG.
FIG. 3 is a conceptual diagram illustrating a state in which a card travels while tilting on a card conveyance path.
FIG. 4 is a conceptual diagram showing a state in which a card travels along one side of a card conveyance path.
FIG. 5 is a partial configuration diagram showing a modification of the embodiment shown in FIGS.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Casing 1a Card conveyance path 1b Card reference surface 2 Access head 3 Head roller 4 Shaft member 5 Conveyance roller 6 Pressure roller 7 Leaf spring 8 Shaft member 9 Conveyance roller 10 Pulley 11 Belt 13 Pulley 14 Pressure roller 15 Leaf spring 16 Card pressing member 17 Pin 18a Movable member 18b Base member 19, 20 Spring 22 Pin 28a Movable member 28b Base member

Claims (1)

A pressing member that presses and urges the information storage card in the width direction perpendicular to the conveying direction with a spring means in the card conveying path, an access head integrally coupled with the pressing member, and the supporting of the pressing member and the access head And a base member supported by the reader / writer main body so that the support portion can move in a width direction orthogonal to the conveyance direction of the information storage card, and the information storage card is provided in the card conveyance path. A card writer structure of a reader / writer for transferring information by accessing the information storage unit with an access head while carrying
The card width-shifting structure of a reader / writer, wherein the pressing member and the access head are supported by the base member so as to be tiltable within a plane parallel to the main surface of the information storage card.

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