JPH0997325A - Image sensor positioning mechanism of device for handling bankbook or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically adjust the fitting position of an image sensor, stabilize the read precision of the image sensor, and facilitate its maintenance by forming positioning projection parts on the image sensor side and providing hole parts which are so arranged as to engage with the projection parts, on a guide plate side. SOLUTION: The image sensor 2 which is provided with the projection parts 14a and 14b, and 14a' and 14b' for positioning is suspended by elastic bodies 11 and enabled to variably move up and down and to the right and left. A housing can be opened and closed by being rotated on the fulcrum 15 of the image sensor support part of a conveyance-path-side side wall and the positioning projection parts 14a and 14b, and 14a' and 14b' are fitted in the hole parts of the guide plate 3 of an image sensor read part 16 provided on a lower conveyance guide 5. Consequently, the fitting position, height, and parallelism of the image sensor 2 can easily be fixed about the guide plate 3 on the lower conveyance guide 5, and further easy maintainability is obtained by enabling the housing to be opened and closed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing device for printing on a passbook, a slip, etc., and more particularly to an image sensor positioning mechanism of a passbook handling device for processing data of characters and marks printed on the passbook.

[0002]

2. Description of the Related Art As a conventional technique, Japanese Patent Laid-Open No. 5-405 is known.
There is a mechanism as disclosed in Japanese Patent No. 24, and efforts are being made for a mounting position and height setting means that greatly affects the sensor reading accuracy. However, in the above-mentioned conventional technique, a complicated and expensive mechanism is required and maintainability is not easy.

[0003]

The image sensor used in a bankbook handling device used in a bank or the like requires reading accuracy, and the accuracy affects the mounting position (height / parallelism) of the image sensor. There is a lot to do. To stabilize the reading accuracy, it is necessary to physically hold the mounting position always constant, and if the mounting position is incorrect, erroneous reading occurs, which hinders the business of banks and the like, which is a problem.
Further, in the case of maintenance when a failure such as a medium jam occurs, extremely accurate gap adjustment is required at the image sensor mounting position, which requires a lot of time during maintenance, which is a problem. An object of the present invention is to provide a sensor unit that can be opened and closed with a simple mechanism as a first object, in which an accurate mounting position of an image sensor is required and the mounting height and parallelism can be fixed without adjustment. The second purpose is to simplify maintenance and cleaning of the sensor unit when a jam such as a passbook occurs.

[0004]

In the present invention, an openable / closable housing (13 in FIG. 2) including an image sensor and the like is provided on the conveying path, and a mounting / positioning mechanism for the image sensor which requires mounting accuracy is provided. Achieve the purpose. Specifically, the protrusions for positioning (14a, 14b in FIG. 2,
The image sensor provided with 14a ', 14b') is hung by a stretchable object (11 in FIG. 2) and can be variably moved in the vertical and horizontal directions. It is opened and closed by rotating around the fulcrum (15 in FIG. 2) and is positioned in the hole of the guide plate (3 in FIG. 2) of the image sensor reading unit provided on the lower transport guide (lower part of the transport guide). By inserting the projection part for the image sensor, the mounting position, height, and parallelism of the image sensor can be easily fixed to the guide plate on the lower conveyance guide, and the housing that houses the image sensor can be opened and closed. By doing so, the configuration will have simple maintainability as well.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION With the above configuration, the following operational effects can be expected. An image sensor that can move up and down and left and right must be positioned vertically (gap) and left and right that affect the reading accuracy of the image sensor, and perform parallelism adjustment to the guide plate on the transport guide without adjustment. Therefore, the reading accuracy of the image sensor can be made stable. In addition, even if a jam of a passbook or the like occurs in the image sensor unit, the medium housing the image sensor can be opened / closed to enable easy medium removal and adhere to the image sensor reading unit. If you can easily clean dust, dirt, etc., and rotate the housing so that the positioning protrusion on the image sensor side fits into the hole on the guide plate side, the image sensor will move to the normal position without adjusting the mounting position. Then, the initial mounting state of the image sensor can be secured.

[0006]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a main part of a passbook printer according to an embodiment of the present invention. In the present embodiment, in order to convey the medium 1 to the medium reading position directly below the image sensor 2, the upper conveyance guide 4 and the lower conveyance guide 5 are arranged so as to face each other and have a constant interval. 5 are fixed to a side frame (not shown). In FIG. 1, the space surrounded by the upper and lower transport guides 5 is called a transport path.
Further, the conveying roller sets 7a, 7b, 7 arranged at a certain interval
The medium 1 is arranged as shown by a ', 7b', 7a ", and 7b" so as to be moved in the conveying path, and is rotationally driven by a known driving technique. Further, an image sensor 2 for optically reading characters and marks printed on the medium 1 is arranged at the rear of the apparatus, individual information of the medium 1 is read by the image sensor 2, and a print head 9 arranged at the central portion of the apparatus.
The operation of moving the medium 1 to the position just below the print head 9 of the printing means constituted by the platen 10 by the conveying roller set, performing the desired printing on the medium 1, and discharging the medium 1 to the insertion port 6 is a known technique. In this embodiment, the image sensor 2 is further hung by a stretchable object (coil spring 11 in FIG. 1), the guide plate 3 is provided on the lower conveyance guide 5, and the image sensor unit (sensor described later) is provided at the same position. The box is supported so that it can rotate (open and close). As shown in FIGS. 2 and 3, the guide plate 3 is provided with oval and circular holes for positioning the image sensor.

The configuration and operation of the positioning mechanism of the image sensor 2 will be described with reference to FIGS. 2 and 3. The image sensor 2 is suspended by a coil spring 11 via a guide shaft 12 in a housing called a sensor box 13. The guide shaft 12 has a structure that supports the image sensor 2 in a vertical direction, and further in a horizontal direction so as to be variable by a certain amount. The image sensor 2 includes a sensor box 13
It has a characteristic structure in that it is held by a coil spring 11 connected to the above, and the action of the spring that is movable vertically and horizontally is used. Further, the sensor positioning protrusions 14a, 14 integrated with the image sensor 2 are provided.
b, 14a ', 14b' are provided, and the protrusions have a shape in which the height of the brim serves as a gap required for reading accuracy. Further, a guide plate 3 having a sensor positioning hole (in this case, an ellipse and a circle, respectively) disposed directly below the image sensor 2 is provided, and the sensor box 13 is provided with a rotation path provided on the side wall of the conveyance path. The structure is openable and closable around the fulcrum 15. Since the mounting position of the image sensor 2 has a great influence on the reading accuracy, it is necessary to always maintain a certain amount of gap and a position in the left-right direction, and when a trouble such as a conveyance jam occurs in the image sensor 2 portion of the apparatus, The sensor box 13 needs to be openable / closable in order to facilitate maintenance for removing dust and dirt adhering to the sensor reading unit 16. When the image sensor fixing hook 17 is removed, the sensor box 13 is opened, and when the initial state is returned after the work such as maintenance is finished, the guide plate 3 is provided with two positioning holes.
By simply closing the sensor box 13 so that the projections 14a and 14a 'of the image sensor 2 are inserted, the image sensor 2 can be accurately positioned in the vertical and horizontal directions.

[0008]

According to the present invention, the mounting position of the image sensor that affects the reading accuracy of the image sensor can be determined by a simple structure in which the image sensor unit is hung by a stretchable object and can be vertically and horizontally variable. The determination can be made by automatic adjustment, and at the same time, the maintenance of the device such as a media jam or the cleaning of the sensor portion can be facilitated, and the subsequent image sensor mounting and positioning can be performed accurately and automatically.

[Brief description of drawings]

FIG. 1 is a side view showing a main part of a passbook printer according to an embodiment of the present invention.

FIG. 2 is a perspective view showing an image sensor mounting portion in one embodiment of the present invention.

FIG. 3 is a side view showing a state of an image sensor mounting position in one embodiment of the present invention.

[Explanation of symbols]

1 ... Medium, 2 ... Image sensor, 3 ... Guide plate,
4 ... upper transport guide, 5 ... lower transport guide, 6 ... insertion port, 7
a, 7b, 7a ', 7b', 7a ", 7b" ... Conveying roller set, 9 ... Print head, 10 ... Platen, 11 ... Coil spring, 12 ... Guide shaft, 13 ... Sensor box,
14a, 14b, 14a ', 14b' ... Sensor positioning protrusion, 15 ... Rotation fulcrum, 16 ... Sensor reading unit, 1
7 ... Image sensor fixing hook.

Claims (1)

[Claims] 1. A transport path for transporting a passbook medium, an image sensor for reading information written on the passbook medium on the transport path, and a guide path for guiding the passbook medium to a reading position directly under the image sensor. In a passbook handling device including a conveyance guide, the image sensor is held and accommodated so as to be movable in the vertical and horizontal directions, and is configured to be opened and closed by rotating around a fulcrum provided on the side wall of the conveyance path. A housing and a guide plate provided at the lower part of the transport guide are provided, a positioning protrusion is provided on the image sensor side, and the positioning protrusion is arranged on the guide plate side so as to fit with the positioning protrusion. An image sensor positioning mechanism having a hole formed therein.