JPH08320911A - Bar code reader and stand for the reader - Google Patents

Abstract

PURPOSE: To make it possible to read out a bar code without reading out a specific bar code for an intermittent reading mode by detecting the depression of a switch and intermittently emitting laser light. CONSTITUTION: When 1st to 3rd detection parts 14 to 16 respectively detect the depression of 1st to 3rd switches 11 to 13, a scanner control part 17 intermittently drive a laser driving part 19 based upon a periodical signal from a time counting part 20. The driving part 19 intermittently irradiates the surface of a bar code with laser light emitted from a laser emitting part 18. Reflected light from the bar code is received and converted into an electric signal through a light receiving part 22, a signal amplification part 23 and a signal conversion part 24. The converted electric signal is decoded by a decoding control part 21 to read out the bar code.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand-held (hand-held) bar code reader for reading an optical symbol such as a bar code and a bar code read without successively pressing a switch of the bar code reader. The present invention relates to a stand of a bar code reader capable of performing the above.

[0002]

2. Description of the Related Art Conventionally, in a bar code reading device for reading a bar code, a hand-held bar code reading device holds the bar code reading device with one hand and depresses a switch provided in the bar code reading device. By doing so, the laser emission was started and the barcode was read.

However, depending on the size and shape of the article to which the barcode is attached, the article must be held by both hands. Therefore, when the above-mentioned handheld barcode reading apparatus is used, the operation of the apparatus is difficult. It was sometimes difficult.

Therefore, as a solution to this, a method of fixing the bar code reading device as shown in FIG. 10 has been conventionally used. In FIG. 10, a switch 2 for turning on / off a laser beam for reading a bar code is provided on a side surface of a hand-held type bar code reading device 1. On the other hand, a special bar code 4 for setting the light emission mode is attached to a predetermined position of the fixing stand 3 of the bar code reading device 1.

The bar code reader 1 is fixed to the stand 3, and when the switch 2 is pressed once in this state, the special bar code 4 is read. For example, when the special bar code 4 for setting the intermittent reading mode which is set to the intermittent reading mode is read, the bar code reading apparatus 1 intermittently emits a laser beam to read the bar code, and the bar code reading apparatus 1 enters the intermittent reading mode. . After that, in this intermittent reading mode, the user does not have to hold the barcode reading device 1 by hand.
The barcode attached to the article could be read.

[0006]

However, in such a conventional method, it is necessary to attach the special bar code 4 for setting the intermittent reading mode to the stand 3 in order to set the intermittent reading mode. And with long-term use,
This special bar code 4 has a problem that it becomes difficult to read due to dirt, scratches, etc., and the intermittent reading mode does not operate normally.

Further, the bar code reader 1 must be fixed to the stand 2 at a position where the special bar code 4 can be accurately read. That is, the position of the light transmitting portion 1a of the bar code reading device 1 for inputting / outputting the laser light must be opposed to the position where the special bar code 4 is accurately read. Therefore, the barcode reader 1
There was also a problem that there was a restriction on the fixed position and the setting angle.

The present invention has been made in view of the above circumstances, and a bar code reading device capable of changing a light emitting mode without reading a special bar code for setting a light emitting mode and a stand for fixing the device. The purpose is to provide.

[0009]

That is, according to the present invention, a light projecting means for emitting a laser beam, a scanning control means for controlling the emission of the laser beam, and a reflected light from the bar code are received to generate an electric signal. In a bar code reading apparatus including a light receiving means for converting into a light and a decoding control means for decoding the electric signal converted by the light receiving means to read the bar code, first switch means for emitting a laser beam. And a first detecting means for detecting an on / off state of the first switch means, a first light emitting mode of the laser beam, and a second light emitting mode different from the first light emitting mode. Two switch means and second detection means for detecting the on / off state of the second switch means, wherein the scanning control means comprises the first detection means and the second detection means. Wherein the light emission in one emission mode of the first light emission mode and the second light emission mode in accordance with the detection output.

Further, according to the present invention, a light projecting means for emitting a laser beam, a scanning control means for controlling the emission of the laser beam, and a light receiving means for receiving the reflected light from the bar code and converting it into an electric signal. In a bar code reader including a decoding control means for decoding the electric signal converted by the light receiving means to read the bar code, a first switch means for emitting a laser beam and the first switch means. A first detection means for detecting whether the switch means is in an on / off state, and a duration for measuring the duration of the ON signal output by the first detection means and outputting the duration to the scan control means. The scanning control means compares the continuation time with an arbitrary predetermined time, and the first light emission mode and the first light emission mode different from the first light emission mode according to a comparison result. Wherein the light emission in one emission mode of the light emitting mode.

In addition, the present invention comprises a fixing means for fixing the bar code reading device, and a first holding means provided on the fixing means for holding the state in the second light emitting mode. Is characterized by.

[0012]

In the bar code reading apparatus of the first invention, the bar code is irradiated with the laser beam by the light projecting means, and the reflected light from the bar code is received by the light receiving means and converted into an electric signal. It The electric signal converted by the light receiving means is decoded by the decoding control means and the barcode is read. The light projecting means is irradiated with laser light by the first switch, and the first detecting means detects the on / off state of the first switch. Further, the second switch means switches between the first light emission mode and the second light emission mode, and the on / off state of the second switch means is detected by the second detection means. Then, the scanning control means emits light in one of the two light emission modes according to the output of the first detection means and the output of the second detection means.

Further, in the bar code reading apparatus of the second invention, the laser light is irradiated onto the bar code by the light projecting means, and the reflected light from the bar code is received by the light receiving means and converted into an electric signal. To be done. The electric signal converted by the light receiving means is decoded by the decoding control means to read the barcode. The light projecting means is irradiated with laser light by the first switch means, and the first detecting means detects the on / off state of the first switch means.
The time counter side unit measures the duration of the ON state output from the first detection means and outputs the duration to the scanning control means. A predetermined time is set in advance in the scanning control means, the duration from the time measuring unit is compared with the predetermined time, and the first light emission mode and the first light emission mode are determined according to the comparison result.
The light is emitted in one of the second light emitting modes different from the light emitting mode of the above.

Further, the stand of the bar code reading device of the third invention is used for the above two bar code reading devices, and when the bar code reading device is fixed to the fixing means, the bar code reading device is read. The device is held in the second light emitting mode.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a block diagram showing the configuration of a bar code reading apparatus according to the first embodiment of the present invention. In the figure, a handheld bar code reader 10 includes a first switch 11 for starting laser emission for bar code reading, and a second switch 12 for an intermittent light emission mode which will be described in detail later. And a third switch 13 are provided. Then, from these first, second, and third switches 11, 12, and 13, respectively, a first switch detection unit 14 and a second switch detection unit 1 are provided.
5, a signal is output to the scanner control unit 17 via the third switch detection unit 16.

A laser emission unit 18 for emitting the above laser is connected to the scanner control unit 17 via a laser drive unit 19, and a time measuring unit 20 and a decode control unit 21 are also connected. The decoding control unit 21 includes a light receiving unit 22 that receives a laser beam, and a signal amplification unit 2
3. The interface circuit 25 is connected through the signal conversion unit 24 and communicates with an external host computer (not shown).

FIG. 2A is an external side view of the bar code reading apparatus 10 shown in FIG. Normally, the user is
As shown in (a), the first switch 11 provided on the side surface portion of the apparatus main body in a state where the handle portion 10b is held with one hand and the light transmitting portion 10a is opposed to the barcode.
Press to use.

FIG. 2B is an external side view showing a state in which the bar code reading device 10 of FIG. 2A is fixed to a stand. The stand 26 includes support legs 28a and 28b mounted substantially vertically on a pedestal 27, a height adjusting tightening screw 29a, and an angle adjusting tightening screw 29b.
And a mounting table 30 on which the barcode reading device 10 is directly mounted.

The support leg 28b is slidable in the direction of arrow A in the figure by adjusting the height adjusting tightening screw 29a. Further, the mounting table 30 described above is capable of adjusting the angle in the direction of arrow B in the drawing by adjusting the tightening screw 29b for adjusting the angle.

FIGS. 3A to 3F are views for explaining the relationship between the bar code reading device 10 and the stand 26 as described above. FIG. 3A shows a barcode reading device 1
0 shows each switch provided on the handle portion 10b of No. 0.

As described above, the first switch 11 is provided so as to project to the outside of the main body of the apparatus so that the user can push it down while holding the handle portion 10b with one hand.

Second switch 12 and third switch 13
Are provided in a state of being buried deeper than the surface of the barcode reading device 10. These second and third
The switches 12 and 13 are switches for the intermittent reading mode and cannot be pressed down by a normal operation. Further, by providing the two switches 12 and 13 for the intermittent reading mode, even if either the second switch or the third switch is pressed due to an erroneous operation or the insertion of a foreign substance, the intermittent reading mode is inadvertently performed. The safety is designed so that it does not become. still,
31 is a dummy hole.

FIG. 3D is a perspective view of the mounting table 30 of the stand 26. The mounting table 30 is for fixing the barcode reading device 10, and is made of a material that bends in the same direction as the light transmitting portion 10a of the barcode reading device 10, for example. The code reading device 10 is fitted from above the mounting table 30. As a result, the barcode reading device 10 is gripped and fixed on the mounting table 30.

The mounting table 30 is also provided with a notch 30a as shown in the drawing, and two projections 3 for pressing the second and third switches 12 and 13.
2 are provided.

3 (b) and 3 (c) are views showing a state in which the bar code reading device 10 is fixed to the mounting table 30 of the stand 26 and viewed from below, and FIGS. 3 (e) and 3 (f) are shown. It is the figure which showed the relationship between the 2nd, 3rd switch 12 and 13 and the protrusion 32 of the state shown to the same figure (b) and (c).

When the bar code reader 10 is fixed to the mounting table 30 as shown in FIG. 3 (b), the first switch 11 is held in a depressed state. In this state, as shown in FIG.
The second and third switches 13 are pressed by the protrusions 32 provided on the mounting table 30. At this time, the barcode reading device 10 is in the intermittent reading mode.

Furthermore, as shown in FIG. 3C, when the bar code reader 10 is fixed to the mounting table 30,
The first switch 11 is held in a non-depressed state.
In this state, as shown in FIG. 7E, the second switch 12 and the third switch 13 are not pressed, and the protrusion 32 is fitted in the dummy hole 31. At this time, the barcode reading device 10 is in the normal reading mode.

Next, the operation of the first embodiment will be described with reference to the flow charts of FIGS. Normally, the handle portion 10b of the barcode reading device 10 is held with one hand, and the light transmitting portion 10 is attached to the barcode attached to the article.
The bar code is read by pressing the first switch 11 with the a pointed at. When holding the article with both hands,
As shown in (b), the barcode reader 10
Is fixed to the mounting table of the stand 26, and the bar code is read.

FIG. 4 shows this bar code reading apparatus 10.
3 is a flowchart illustrating the basic operation of the above. First, in step S1, it is determined whether or not the first switch 11 has been pressed. Here, when the first switch detection unit 14 detects that the first switch 11 has been pressed, the process proceeds to step S2, and it is determined whether the second switch 12 has been pressed. When the second switch detector 15 detects that the second switch 12 has been pressed, the third switch 1 is subsequently operated in step S3.
It is determined whether 3 has been pressed. On the other hand, step S2
If the second switch 12 is not pressed at, the process proceeds to step S4 to enter the normal reading mode.

In step S3, when the third switch detector 16 detects that the third switch 13 is pressed, the process proceeds to step S5 to enter the intermittent reading mode. That is, when all of the first, second and third switches 11, 12 and 13 are turned on, the intermittent reading mode is set. On the other hand, the second and third switches 12,
If any of 13 is turned off, the normal reading mode is set.

The operation of the normal reading mode will be described below with reference to the flow chart of FIG. In the normal reading mode, when the first switch detection unit 14 detects that the first switch 11 has been pressed, step S1 is performed.
At 1, the laser driving unit 19 is driven by the scanner control unit 17 and the laser emitting unit 18 emits a laser beam.
Then, in step S12, the light receiving section 22 receives the reflected light from the barcode attached to the article, and the received reflected light is converted into an electric signal. Then, the signal is amplified by the signal amplifier 23 and then converted into a digital signal by the signal converter 24. Further, it is decoded by the decoding control unit 21 and transmitted to the host computer (not shown) via the interface circuit 25.

Thus, when the bar code is read,
In step S13, it is determined whether the reading is completed. If the reading is completed, the process proceeds to step S16, and the laser emission is stopped.

If the reading is not completed in step S13, it is determined in step S14 whether or not the reading allowable time (the time during which the laser beam is emitted and the bar code reading is continuously tried) has elapsed. . If the permissible time has elapsed even if the reading is not completed, the process proceeds to step S16, and the laser emission is stopped.

Further, if the reading permissible time has not elapsed in step S14, the process proceeds to step S15 and it is determined whether or not the first switch 11 is turned off. Here, if the first switch 11 is turned off,
The process proceeds to step S16 and the laser emission is stopped. On the other hand, if the first switch 11 remains on, the process returns to step S12 and the above-described operation is repeated.

In this way, when the laser emission is stopped and the normal reading mode is completed, the process returns to step S1 in the flowchart of FIG. On the other hand, when the operation proceeds to step S5 and enters the intermittent reading mode, the operation is performed according to the flowchart of FIG.

That is, as shown in FIG.
The barcode reading device 10 is fixed to the mounting table 30, and the first, second and third switches 11, 12 and 13 are attached.
Is pressed. Then, in step S21,
The laser driving unit 19 is driven by the scanner control unit 17, and the laser emitting unit 18 emits laser light. At this time, the scanner control unit 17 intermittently drives the laser drive unit 19 based on the regular signal from the time measuring unit 20. Therefore, the laser emitting section 18 intermittently emits laser light. In this intermittent reading mode, the laser beam is emitted about every second to read the bar code.

Then, in steps S22 and S23,
Steps S12 and S1 in the normal reading mode described above
Similar to 3, the barcode reading and the reading completion determination are performed. Here, if the reading is completed, or if the intermittent light emission time has elapsed in the subsequent step S24 even if the reading is not completed, step S25.
Then, the laser emission is stopped.

If the intermittent light emission time has not elapsed in step S24, the process returns to step S22 and the above-described operation is repeated. On the other hand, when the laser emission is stopped in step S25, the process proceeds to step S26, and it is determined whether or not the laser emission stop time has elapsed.

If the light emission stop time has elapsed, the process proceeds to step S6 in the flowchart of FIG. 4 to determine whether the first, second and third switches 11, 12 and 13 remain off. Is determined. If the first, second, and third switches 11, 12, and 13 remain turned on, the process returns to step S5 and the intermittent reading mode is performed again.
Then, the first, second and third switches 11, 12, 13
The intermittent reading mode is repeated until any of the above is turned off. First, second and third switches 11, 12, 1
If any of 3 is turned off, the process returns to step S1.

In such an intermittent reading mode, the bar code reading device 10 is fixed to the mounting table 30 of the stand 26 as described above. The user holds the article with both hands, and the barcode attached to the article is scanned and read by the laser emitted from the barcode reading device 10.

As a result, the user can use both hands to read the bar code attached to the article. Further, when the barcode reading device 10 is removed from the mounting table 30, the first switch 11, the second and third switches 12 and 13 are released, and the normal reading mode is resumed. The state at this time is shown in FIG.
2 is in a state of being fitted in the dummy hole 31.

The bar code reader 10 is shown in FIG.
As shown in FIG. 7, by adjusting the angle adjusting tightening screw 29b and the height adjusting tightening screw 29a of the stand 26, it is possible to set the angle and height that are easy for the user to use.

For example, when it is desired to fix the bar code reading device 10 to the stand 26 in a state where the work is temporarily interrupted and the laser emission is stopped, as shown in FIG. Then, the bar code reading device 10 is fixed at a position shifted upward in FIG. In this case, the protrusion 32 provided on the mounting table 30 is fitted into the dummy hole 32 of the barcode reading device 10, and the first switch 1
It is fixed without pressing the first, second and third switches 12 and 13. Therefore, the barcode reading device 10 can be fixed in a state where the laser is not emitted.

As described above, in the first embodiment, when the bar code reader reads the bar code of the article to which the bar code is attached with both hands, the light emitting mode is changed as in the conventional case. No special bar code is required for long-term use, so there is no performance deterioration in operation, and the second and third switches are provided in addition to the first switch, so that read mode due to malfunction of the switches It is possible to provide a bar code reading device without misidentification. Furthermore, since it is not necessary to attach a special bar code to the stand, the height and angle of the bar code reader to be attached can be selected so that it is easy for the user to use.

Next, a second embodiment of the present invention will be described. In the above-mentioned first embodiment, the second and third switches 12 and 1 are used for intermittent reading of the bar code.
3 is provided and these second and third switches 12 and 1 are provided.
The intermittent reading mode was performed in response to the turning on of 3. Second
In this embodiment, an example will be described in which the second and third switches 12 and 13 for preventing such misrecognition are not provided.

FIG. 7 is a block diagram showing the structure of a bar code reading apparatus according to the second embodiment of the present invention. The same parts as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted.

In FIG. 7, the handheld bar code reader 34 is provided with a switch 35 for starting laser emission for bar code reading. Then, a signal is output from the switch 34 to the scanner control unit 17 via the switch detection unit 36.

FIGS. 8A to 8D are views for explaining the relationship between the bar code reading device 34 and the stand 26 '. FIG. 8A shows the switch 35 provided on the handle portion 34 b of the barcode reading device 34. As described above, the switch 35 is provided so as to project to the outside of the apparatus main body so that the user can press down the handle portion 34b with one hand.

FIG. 8D is a perspective view of the mounting table 37 of the stand 26 '. The mounting table 36 is for fixing the bar code reading device 34, and is made of, for example, a material that bends in the same direction as the light transmitting portion 34a of the bar code reading device 34. The code reading device 34 is fitted from above the mounting table 37. As a result, the barcode reading device 34 is gripped and fixed on the mounting table 37.

The mounting table 37 is also formed with a notch 37a as shown in the figure. FIGS. 8B and 8C are views showing a state in which the bar code reading device 34 is fixed to the mounting table 37 of the stand 26 'and viewed from below.

When the bar code reading device 34 is fixed to the mounting table 37 as shown in FIG. 8B, the switch 35 is held in a depressed state. As shown in FIG. 8C, the bar code reading device 34 is mounted on the mounting table 37.
Notch 37a, the switch 3
No. 5 is held without being pressed.

Next, referring to the flowchart of FIG.
The operation of the second embodiment will be described. The barcode reading device 34 normally holds the handle portion 34b with one hand and pushes the switch 35 to read the barcode attached to the article. That is, in step S31, it is determined whether or not the switch 35 is pressed. If the switch 35 is being pressed, the process proceeds to step S32 to enter the normal reading mode. The detailed operation of the normal reading mode has been described with reference to FIG. 5, and thus the description thereof is omitted here.

Then, in step S33, it is determined whether or not a predetermined time has elapsed with the switch 35 turned on after the normal reading mode is completed. Here, if the fixed time has elapsed, the process proceeds to step S35 to enter the intermittent reading mode. If the fixed time has not elapsed, the process proceeds to step S34 and it is determined whether the switch 35 is turned off.

In step S34, the steps S33 and S34 are repeated until the switch 35 is turned off. If the switch 35 is turned off, the step S33 is performed.
Return to 31.

That is, the bar code reader 34 is mounted on the mounting table 37 of the stand 26 ', the switch 35 is pressed, and the laser emission is started. Then, after the reading of the bar code is completed, or after the reading permissible time (the permissible time during which the laser beam is emitted and the bar code reading is continuously attempted) has elapsed, the time measuring unit 20 continues to press the switch 35 for a predetermined time or longer. If it is determined, the intermittent reading mode is set. In this intermittent reading mode,
The scanner control unit 17 intermittently drives the laser drive unit 19 according to the regular signal from the time measuring unit 20. This allows the user to use both hands to read the barcode attached to the article.

Next, at step S36, it is judged if the switch 35 has been turned off. That is, when the bar code reading device 34 is removed from the mounting table 37, the switch 35 is released, and the process returns to step S31 to return to the normal reading mode.

Also in the second embodiment, as in the first embodiment described above, as shown in FIG. 2, the angle adjusting tightening screw 29b and the height adjusting tightening screw 29b of the stand. By adjusting 29a, the barcode reading device 34 can be attached at an angle and height that are easy for the user to use.

Further, when it is desired to fix the bar code reading device 34 in a state where the work is temporarily interrupted and the laser emission is stopped, as shown in FIG. 8C, the table 37 of the stand 26 'is placed. Then, the bar code reader 34 is fixed at a position shifted upward. In this case, switch 3
Since 5 is held in a non-pushed state, the bar code reading device 34 can be fixed in a state in which the laser is not emitted.

As described above, according to the second embodiment, when the barcode of the article to which the barcode has been attached is read by the barcode reading device with both hands, a special barcode is not required, so that long-term use is possible. However, it is possible to provide a low-cost bar code reading device that does not have performance deterioration in operation and does not require a special mechanism such as a switch. In addition, since it is not necessary to attach a special bar code to the stand, the height and angle of the bar code reader to be attached can be selected so that it is easy for the user to use.

Although the above description has been given based on the embodiments, the following configurations are included in the present specification. (1) Projecting means for emitting laser light, scanning control means for controlling the emission of the laser light, light receiving means for receiving the reflected light from the bar code and converting it into an electric signal, and this light receiving means A bar code reading apparatus including a decoding control means for decoding the converted electric signal to read the bar code, wherein a first laser beam is emitted.
Switch means and first detection means for detecting the on / off state of the first switch means, switching between a first light emission mode of laser light and a second light emission mode different from the first light emission mode. And a second detection means for detecting an on / off state of the second switch means, wherein the scanning control means comprises the first detection means and the second detection means. According to the detection output of 1., the bar code reading device which emits light in one of the first light emitting mode and the second light emitting mode.

(2) In the bar code reading apparatus described in (1) above, the scanning control means detects that the first switch means is in an ON state by the first detection means, Further, when the second detecting means detects that the second switching means is in the off state, the first detecting means emits light, and the first detecting means causes the first switching means. Is detected to be in the on state, and the second detecting means detects that the second switch means is in the on state, the second light emitting mode emits light. Bar code reader to do.

(3) In the bar code reading apparatus described in (2) above, the second switch means is composed of at least two switches, and the scanning control means includes the first detection means to operate the When the first switch means is detected to be in the on state and the second detection means detects that both of the two switches are in the on state, light is emitted in the second light emission mode. A bar code reading device characterized by the above.

(4) Projecting means for emitting laser light,
Scan control means for controlling the emission of the laser light, light receiving means for receiving the reflected light from the bar code and converting it into an electric signal, and the bar code for decoding the electric signal converted by the light receiving means. In a bar code reader including a decoding control means for reading the first switch means, a first switch means for emitting a laser beam and a first detection for detecting whether the first switch means is in an on / off state or not. Means for measuring the duration of the ON signal output by the first detection means, and outputting the duration to the scanning control means, the scanning control means includes: The light emission is performed in one of the first light emission mode and the second light emission mode different from the first light emission mode according to a comparison result by comparing with an arbitrary predetermined time. Bar code reading apparatus.

(5) In the bar code reading apparatus described in (4) above, when the scanning control means determines that the duration time does not exceed the predetermined time, the first light emission mode is set. The bar code reading device emits light in the second light emission mode when it is determined that the duration time exceeds the predetermined time.

(6) The bar code reader according to any one of (1) to (5) above, wherein the second light emission mode is intermittent light emission.

(7) The bar code reader according to any one of (1) to (5) above, wherein the second light emission mode is continuous light emission.

(8) In the bar code reading device described in (1) to (7) above, a fixing means for fixing the bar code reading device and a second light emission mode provided in the fixing means. A stand for a bar code reading device, comprising: a first holding means for holding a state of time.

(9) In the stand of the bar code reading apparatus described in (8) above, there is further provided second holding means provided in the fixing means and holding the state in the first light emission mode. A bar code reader stand characterized in that

(10) In the stand of the bar code reading apparatus described in (8) and (9) above, the fixing means is fixed with an angle adjusting means capable of adjusting the depression / elevation angle of the bar code reading apparatus. And a height adjusting means capable of adjusting the height of the barcode reading apparatus.

According to the above configuration (1), the first light emission mode or the first light emission mode or the second light emission means is output according to the outputs of the first detection means and the second detection means without using a special bar code for setting the light emission mode. Laser light can be emitted in two emission modes.

According to the above configuration (2), the output of the first detecting means is on and the output of the second detecting means is on without using a special bar code for setting the light emission mode. In this case, the laser light can be emitted in the second emission mode.

According to the configuration of (3) above, in addition to the configuration of (2) above, since the second switch means is composed of at least two switches, the second switch means may be erroneously operated. It is possible to prevent a light emission mode other than the desired light emission mode.

According to the above configuration (4), the first light emission mode or the second light emission is obtained without using a special bar code for setting the light emission mode and without adding a switch for changing the light emission mode. Laser emission can be performed in a mode.

According to the above configuration (5), if the duration of the ON state of the first detecting means is longer than the predetermined time without using the special bar code for setting the light emitting mode, the second light emitting mode is set. The laser light can be emitted with.

According to the configuration of (6) above, intermittent light emission can be performed. With configuration (7) above, continuous light emission can be performed. According to the configuration of (8) above, it is possible to maintain the state of the second light emission mode only by fixing the barcode reading device to the fixing means.

According to the above configuration (9), the bar code reader can be held in either the first light emitting mode state or the second light emitting mode state simply by fixing it to the fixing means. it can. According to the above configuration (10),
The fixed barcode reader can be adjusted according to the user's usage situation.

[0078]

As described above, according to the first aspect of the present invention, the laser beam is emitted in the first light emission mode or the second light emission mode different from the first light emission mode without reading the special bar code for setting the light emission mode. It can emit light.

According to the second invention, the laser beam can be emitted in the first light emission mode or the second light emission mode different from the first light emission mode without reading the special bar code for setting the light emission mode. . Further, according to the third invention, it is possible to maintain the state of the second light emission mode only by fixing the bar code reading device to the fixing means.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a bar code reading device according to a first embodiment of the present invention.

2A is an external side view of the barcode reading apparatus 10 of FIG. 1, and FIG. 2B is an external side view showing a state in which the barcode reading apparatus 10 of FIG.

3A to 3F are views for explaining the relationship between the bar code reading device 10 and the stand 26 of FIG.

FIG. 4 is a bar code reader 1 according to the first embodiment.
It is a flow chart explaining the basic operation of 0.

FIG. 5 is a flowchart illustrating an operation in a normal reading mode.

FIG. 6 is a flowchart illustrating an operation in an intermittent reading mode.

FIG. 7 is a block diagram showing a configuration of a bar code reading device according to a second embodiment of the present invention.

8A to 8D are views for explaining the relationship between the bar code reading device 34 and the stand 26 'of FIG.

FIG. 9 is a bar code reader 3 according to a second embodiment.
4 is a flowchart illustrating a basic operation of No. 4 of FIG.

FIG. 10 is an external view of a conventional handheld bar code reader and a stand for fixing the bar code reader.

[Explanation of symbols]

10, 34 ... Bar code reading device, 10a ... Light transmitting part, 10b ... Handle part, 11 ... First switch, 12
... second switch, 13 ... third switch, 14 ... first
Switch detector, 15 ... Second switch detector 16,
... third switch detection unit, 17 ... scanner control unit, 18
... laser emitting section, 19 ... laser driving section, 20 ... time measuring section, 21 ... decode controlling section, 22 ... light receiving section, 23 ... signal amplifying section, 24 ... signal converting section, 25 ... interface circuit, 26, 26 '... Stand, 27 ... Pedestal, 28a, 2
8b ... Support legs, 29a ... Height adjusting tightening screws, 29
b ... tightening screw for adjusting angle, 30, 37 ... mounting table, 3
0a, 37a ... Notch, 31 ... Dummy hole, 32 ... Protrusion, 35 ... Switch, 36 ... Switch detection unit.

Claims (3)

[Claims] 1. A light projecting unit for emitting a laser beam, a scanning control unit for controlling the emission of the laser beam, a light receiving unit for receiving the reflected light from the bar code and converting it into an electric signal, and the light receiving unit. In a bar code reading apparatus including a decoding control means for decoding the electric signal converted by the means to read the bar code, first switch means for emitting laser light and the first switch means are provided.
Detecting means for detecting the on / off state of the switch means, and second switch means for switching between a first light emitting mode of the laser light and a second light emitting mode different from the first light emitting mode. And second detection means for detecting the on / off state of the second switch means, wherein the scanning control means is responsive to the detection outputs of the first detection means and the second detection means. A bar code reading device which emits light in one of a first light emitting mode and the second light emitting mode. 2. A light projecting unit for emitting a laser beam, a scanning control unit for controlling the emission of the laser beam, a light receiving unit for receiving the reflected light from the bar code and converting it into an electric signal, and the light receiving unit. In a bar code reader including a decoding control means for decoding the electric signal converted by the means and reading the bar code, a first switch means for emitting a laser beam and a first switch means First detection means for detecting whether or not it is in an on / off state, and a time counter side portion for measuring the duration of the ON signal output by the first detection means and outputting the duration to the scanning control means. The scan control means compares the duration with an arbitrary predetermined time, and according to the comparison result, the first light emission mode and the second light emission mode different from the first light emission mode. Bar code reader, characterized in that to emit light while the light emitting mode of the mode. 3. The bar code reading device according to claim 1 or 2, wherein a fixing means for fixing the bar code reading device and a state provided in the fixing means in the second light emission mode are set. A stand for a bar code reader, comprising: a first holding means for holding.