JP2589960Y2 - Barcode reader electrical component mounting device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bar code reader for reading a bar code symbol described on a bar code label, and more particularly to a device for mounting electric parts which can easily repair and replace a light source and a light receiving element. is there.

[0002]

2. Description of the Related Art As a barcode reader for optically reading barcode symbols, a handy type shown in FIGS. 5 and 6 is known. This barcode reader is
Light source 10 using an LED or the like that emits light of a predetermined wavelength
0 and the bar code label 1 emitted from the light source 100
Microprocessor mounted on a main substrate 104, including an imaging lens 102 for forming an image of the reading light reflected at 01 on a light receiving element 103 described below, and a light receiving element 103 using a charge-coupled element or the like. A read signal output from the light receiving element 103 is electrically processed by 105 and the like, and then output to a host computer (not shown).

[0003]

By the way, in this bar code reader, the light source 100 and the light receiving element 103 are usually provided on the printed circuit boards 100A and 103A separately from the main substrate 104 due to the optical path to be set. Therefore, a wiring cord 106, a connector (not shown), and the like are required for connection with the main board 104. As a result, the structure becomes complicated, and it becomes an obstacle to downsizing the casing 107,
In addition, various inconveniences such as a problem of disconnection due to vibration or a problem of repair at the time of failure are caused. In view of the above circumstances, the present invention provides a bar code reader which has a simple structure, is easy to manufacture, can be easily repaired in the event of a failure, and can improve vibration resistance. It is an object of the present invention to provide an electric component mounting apparatus.

[0004]

That is, in the present invention, light from a light source is projected toward a bar code label, light reflected by the bar code label and returned is received by a light receiving element, and a control unit is provided. Performs signal processing of a read signal output from the light receiving element, and in a bar code reader that reads information described in the bar code label, the light source and the light receiving element are mounted on a substrate on which the control unit is mounted. It is a thing.

[0005]

In this invention, all the electric components, that is, the light source, the light receiving element, and the control section are mounted on one board, so that the light source and light receiving element boards are not required and the connection is not required. Since a cord and a connector are not required, the structure is simplified and the bar code reader is suitable for miniaturization. In addition, even if a failure of an electric component such as a light source or a light receiving element occurs, repair can be easily and quickly performed by unitizing or modularizing.

[0006]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a block diagram showing an apparatus for mounting an electric component of a bar code reader according to the present invention. This electric component mounting device uses a light emitting diode (LE) as a light source.
D) 1 and a charge-coupled device (CCD) 2 as a light receiving element are mounted on the same substrate 3 as a control unit (not shown). In the drawing, reference numeral 4 denotes an imaging lens, 5 denotes a plane mirror, and 6 denotes a casing.

The light emitting diode 1 has an LED mount 11
And is mounted on the substrate 3 via an angled state such that light is projected toward the reading opening 6A of the casing 6. In addition, as this electric component mounting device, in particular, in addition to this, for example, a concave mirror 7 having a predetermined curvature is used in place of the imaging lens 4 and the plane mirror 5, and the concave mirror 7 is placed at a predetermined height position immediately above the charge-coupled device 2. It may be provided.

Further, as shown in FIG. 4, the LED 1 serving as a light source may be directly mounted on the substrate 3 without using the LED mount 11. With such a configuration, L
From the degree of inclination of the flat mirror 8 provided immediately above the ED 1 when the flat mirror 8 is installed, fine adjustment of the light projection direction can be finely made in accordance with the specific emission distribution of the LED 1. It should be noted that even in the case of this configuration, the imaging lens 4 can be omitted by replacing the plane mirror 5 with a concave mirror having a required curvature. Further, instead of the plane mirror 8, a concave mirror or a convex mirror having an appropriate curvature according to the specific emission distribution of the LED 1 may be provided.

[0009]

As described above, according to the present invention, all the electric components, that is, the light source, the light receiving element, the control unit, and the like are mounted on a single substrate, so that the light source and the light receiving element are provided. This eliminates the need for each element substrate and the need for connection cords and connectors, which simplifies the structure and is suitable for reducing the size of a barcode reader. In addition, according to the present invention, even if a failure of an electric component such as a light source or a light receiving element occurs, it can be easily and quickly repaired by unitizing or modularizing.
The effect on actual use is great. Further, according to the present invention, since the wiring cord is eliminated, the vibration resistance can be improved, and the manufacturing cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing an apparatus for mounting an electric component of a barcode reader according to an embodiment of the present invention.

FIG. 2 is a schematic plan view of the same.

FIG. 3 is a schematic side view showing a modified example of the electric component mounting device of the bar code reader shown in FIG.

FIG. 4 is a schematic side view showing a bar code reader electrical component mounting apparatus according to another embodiment of the present invention.

FIG. 5 is a schematic side view showing a connection relationship between electric components of a conventional bar code reader.

FIG. 6 is a schematic plan view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 LED (light source) 2 Charge-coupled device (light-receiving device) 3 Substrate

Claims (1)

(57) [Scope of request for utility model registration] 1. A light source emits light toward a bar code label, the light reflected by the bar code label and returned is received by a light receiving element, and a control unit reads a read signal output from the light receiving element. A bar code reader that performs signal processing of the above, and reads information described in the bar code label, wherein the light source and the light receiving element are mounted on a substrate on which the control unit is mounted. Electric component mounting device.