JP5457659B2 - Digital display measuring instrument - Google Patents

Description

  The present invention relates to a digital display type measuring instrument.

2. Description of the Related Art Conventionally, there has been known a digital display-type measuring instrument including a display unit that displays digital numbers and a control unit that controls the display unit (see, for example, Patent Document 1).
A vernier caliper (digital display type measuring instrument) described in Patent Document 1 includes a sensor module and a main scale. The sensor module processes a position sensor and an output signal of the position sensor and outputs a measurement value. A processing circuit (control means) and a display (display means) for displaying measurement values output from the signal processing circuit are provided.
Further, in the caliper described in Patent Document 1, the display unit displays a display segment composed of seven segments formed in a substantially straight line, that is, a seven-segment display (hereinafter referred to as a unit segment) with respect to a digital number. And a plurality of components arranged in the lateral direction.

However, according to such a configuration, the display device can display only one piece of information (for example, a measured value), so when displaying other information (for example, a measured value obtained by changing the unit system). For example, there is a problem that the information to be displayed must be switched by a button operation or the like, which is troublesome.
On the other hand, in the caliper described in Patent Document 2, the display unit (display means) has a plurality of display columns. Since each display field can display a plurality of different pieces of information, a plurality of pieces of information can be displayed simultaneously without any button operation.

JP 2002-202119 A JP-A-9-133502

  However, according to such a configuration, there is a problem that the display area in the display unit becomes large, and as a result, the digital display type measuring instrument is enlarged. This problem is fatal for small digital display measuring instruments such as calipers.

  An object of the present invention is to provide a digital display-type measuring instrument capable of simultaneously displaying a plurality of information and suppressing an increase in the display area.

The digital display-type measuring instrument of the present invention is a digital display-type measuring instrument comprising display means for displaying digital numbers and control means for controlling the display means, wherein the display means is formed in a substantially linear shape. A unit number portion for displaying the digital number in a plurality of segments, the unit number portion extending along the horizontal direction with respect to the digital number, and with both end positions in the horizontal direction aligned. A plurality of horizontal segments arranged at predetermined intervals in the vertical direction and a plurality of horizontal segments extending along the vertical direction and arranged between the left end and the right end of each horizontal segment. The control means includes a fraction display unit for displaying a fraction on the display means .

  According to such a configuration, the unit number portion includes at least seven horizontal segments and a plurality of vertical segments, and thus has a configuration in which at least three unit segments are overlapped. Specifically, for example, when a unit number part is composed of 7 horizontal segments, the unit number part is composed of 19 horizontal segments including 7 horizontal segments and 12 vertical segments. 7 segments on the upper side (hereinafter referred to as the upper unit segment), 7 segments in the middle (hereinafter referred to as the intermediate unit segment), and 7 segments on the lower side (hereinafter referred to as the lower unit) 3 unit segments) are connected in the vertical direction.

Therefore, the unit number part can simultaneously display a plurality of information in the upper unit segment and the lower unit segment, for example.
In the unit numeric part, the lower horizontal segment in the upper unit segment and the upper horizontal segment in the intermediate unit segment are composed of a common horizontal segment, and the lower horizontal segment and the lower unit segment in the intermediate unit segment. The upper horizontal segment is a common horizontal segment. Therefore, it is possible to suppress an increase in the size of the display area as compared with the case where the three unit segments are simply arranged in the vertical direction.
Furthermore, since the unit number part is composed of three unit segments, the position and size of the digital number displayed on the unit number part can be changed, and information can be displayed in a special display format such as a fraction. Can be displayed.
Moreover, since the control means includes a fraction display unit, for example, the measurement value can be displayed in fractions according to the setting of the digital display type measuring instrument by the user. To display the fraction on the display means, for example, when the unit number part is composed of 7 horizontal segments, the numerator is displayed in the upper unit segment and the denominator is displayed in the lower unit segment. And can be displayed by displaying a tie line in the intermediate unit segment.

In this invention, it is preferable that the said display means is equipped with the said some unit number part arranged along the said horizontal direction.
According to such a configuration, since the display means includes a plurality of unit number parts, the amount of information to be displayed can be increased as compared with a case where one unit number part is provided.

  In this invention, it is preferable that the said control means is provided with the display control part which controls at least any one of the position and the magnitude | size which display the said digital number on the said display means.

  According to such a configuration, since the control means includes the display control unit, for example, according to the setting of the digital display measuring instrument by the user, the measurement value is displayed at an arbitrary position, or the entire entire segment is displayed. The display can be enlarged to display the measured value.

  In the present invention, it is preferable that the control means includes a multi-stage display unit that simultaneously displays at least two stages of the digital numbers on the display means.

  According to such a configuration, since the control means includes a multi-stage display unit, for example, when the unit number unit is configured by seven horizontal segments, according to the setting of the digital display type measuring instrument by the user. The upper unit segment can display a measured value in a predetermined unit system, and the lower unit segment can display a measured value in a unit system different from the unit system displayed in the upper unit segment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[Schematic configuration of calipers]
FIG. 1 is a front view of a caliper 1 according to an embodiment of the present invention.
As shown in FIG. 1, a caliper 1 as a digital display measuring instrument includes a main scale 2 formed in a substantially rectangular plate shape, a slider 3 provided so as to be movable along the longitudinal direction of the main scale 2, and a slider. 3, the encoder 4 for detecting the amount of displacement relative to the main scale 2, the slider 3, the display means 5 for digitally displaying information such as the displacement detected by the encoder 4, the slider 3, the display means And control means 6 for controlling 5.

The main scale 2 includes an outer measurement jaw 21 and an inner measurement jaw 22 provided at one end in the longitudinal direction (left end in FIG. 1).
The slider 3 is provided so as to face the outer measurement jaw 21 and the inner measurement jaw 22 of the main scale 2, and the outer measurement jaw 31 that contacts the object to be measured together with the outer measurement jaw 21 and the inner measurement jaw 22, and the inner A measuring jaw 32 is provided. In addition, the slider 3 is provided with a plurality of operation buttons 33 at positions around the display means 5.
The encoder 4 includes an electromagnetic induction scale 41 provided along the longitudinal direction of the main scale 2 and a detection unit that is provided on the slider 3 and detects the amount of displacement of the slider 3 relative to the main scale 2 in cooperation with the scale 41. 42.

FIG. 2 is an enlarged view showing a detailed configuration of the display means 5.
As shown in FIG. 2, the display means 5 is composed of a plurality of segments and displays digital numerals. The display means 5 is arranged at one end (left side in FIG. 2) of the display area, It comprises five unit numeral parts 52 arranged at approximately the center position of the area, and dot display parts 53 arranged respectively between the unit numeral parts 52.

  The sign display unit 51 displays a plus or minus sign, and includes one segment 511 extending in the horizontal direction (left and right direction in FIG. 2) with respect to the digital numeral, and a substantially central position of the segment 511. And two segments 512 extending upward and downward (upward and downward in FIG. 2) with respect to the digital numeral. The sign display unit turns on the segments 511 and 512 when displaying a plus sign under the control of the control unit 6 and lights only the segment 511 when displaying a minus sign.

FIG. 3 is an enlarged view showing a detailed configuration of the unit number part 52.
As shown in FIG. 3, each unit number portion 52 is arranged along the horizontal direction with respect to the digital number, and displays the digital number. Specifically, the unit number portion 52 is composed of 19 segments S1 to S19 formed in a substantially straight line, extends along the horizontal direction with respect to the digital number, and aligns both end positions in the horizontal direction. In this state, seven horizontal segments S1, S4, S7, S10, S13, S16, and S19 arranged at predetermined intervals in the vertical direction, and extending along the vertical direction, and each horizontal segment S1, Twelve vertical segments S2, S3, S5, S6, S8, S9, S11, S12, S14, S15, S17 disposed between the left end and the right end of S4, S7, S10, S13, S16, S19, respectively. , S18.

The unit number portion 52 includes an upper unit segment U1 composed of seven upper segments S1 to S7, an intermediate unit segment U2 composed of seven intermediate segments S7 to S13, and a lower unit segment U1. Digital numbers can be displayed on the lower unit segment U3 including seven segments S13 to S19.
The dot display unit 53 displays information such as a decimal point in the measured value, for example, and as shown in FIGS. 2 and 3, the dot display unit 53 is arranged between the horizontal segments S 7, S 13, and S 19 in each unit number unit 52. It is arranged.

FIG. 4 is a block diagram showing a schematic configuration of the caliper 1.
The control means 6 is composed of a CPU (Central Processing Unit), a memory, etc., for example, acquires a displacement amount of the slider 3 relative to the main scale 2 detected by the detection unit 42, and uses the acquired displacement amount as a measurement value. It is displayed on the display means 5. As shown in FIG. 4, the control unit 6 includes a display control unit 61 that controls the position and size of the digital number displayed on the display unit 5, a fraction display unit 62 that displays a fraction on the display unit 5, and The display unit 5 includes a two-stage display unit 63 as a multi-stage display unit that simultaneously displays two-stage digital numbers, and a clock display unit 64 that displays time information on the display unit 5.

  In addition, the operations of the display control unit 61, the fraction display unit 62, the two-stage display unit 63, and the clock display unit 64 are switched according to the display setting, and the operation button 33 (see FIG. 1) is operated by the user. Is switched. Hereinafter, display examples of the display unit 5 in each display setting will be described. It should be noted that the display setting for displaying the fraction on the fraction display unit 62 is a fraction display, the display setting for displaying two-stage digital numbers simultaneously on the two-stage display unit 63 is a two-stage display, and the time is A display setting for displaying information is a clock display.

[Display example of display means]
FIG. 5 is a diagram illustrating a display example when the display control unit 61 controls the position where the display unit 5 displays digital numbers.
When the display setting is switched by the user and the position where the digital number, for example, the measured value is displayed on the display means 5 is changed, the display control unit 61 displays the measured value on the display means 5 as shown in FIG. Change the display position.
Specifically, in FIG. 5, the display control unit 61 controls the upper unit segment U1, the middle unit segment U2, and the lower unit segment U3 to display the position where the display unit 5 displays the measurement value in the display area. The upper side (FIG. 5A), the intermediate position (FIG. 5B), and the lower side (FIG. 5C). The display control unit 61 controls the code display unit 51 and the dot display unit 53 according to information such as measurement values displayed on the display unit 5. The same applies to the fraction display unit 62 and the two-stage display unit 63.

6 and 7 are diagrams illustrating display examples when the display control unit 61 controls the display unit 5 to control the display size of digital numbers.
When the display setting is switched by the user and the display size of the digital number is changed on the display means 5, the display control unit 61 displays the measured value on the display means 5 as shown in FIGS. 6 and 7. Change the display size.

Specifically, in FIG. 6A, the display control unit 61 controls the lower unit segment U3 so that the display means 5 has the smallest digital number (hereinafter, the size of the digital number is equal to the same size). ) Is displayed. In FIG. 6B, the display control unit 61 controls the intermediate unit segment U2 and the lower unit segment U3 to display double digital numbers. In FIG. 6C, by controlling the entire unit number portion 52, a digital number three times as large is displayed.
In FIG. 7, the display control unit 61 controls the intermediate unit segment U2 and the lower unit segment U3 to display the integer part as a double digital number and the decimal part as an equal digital number. (FIG. 7 (A)), the integer part is displayed as an equal digital number, and the decimal part is displayed as a double digital number (FIG. 7 (B)).

FIG. 8 is a diagram showing a display example when the fraction display unit 62 displays the fraction on the display means 5.
When the display setting is switched to the fraction display by the user, the fraction display unit 62 displays the fraction on the display means 5 as shown in FIG.
Specifically, in FIGS. 8A and 8B, the fraction display unit 62 displays the numerator by controlling the upper unit segment U1, and displays the denominator by controlling the lower unit segment U3. By controlling the intermediate unit segment U2, the concatenated line and the integer part are displayed to display fractions.
In FIG. 8C, the fraction display unit 62 displays the numerator by controlling the upper unit segment U1, and displays the denominator by controlling the lower unit segment U3. By controlling it, the connecting line extending diagonally is displayed and the fraction is displayed.

9 and 10 are diagrams showing display examples when the two-stage display unit 63 performs two-stage display.
When the display setting is switched to the two-level display by the user, the two-level display unit 63 simultaneously displays digital numbers in the upper unit segment U1 and the lower unit segment U3, as shown in FIGS. Display.

  Specifically, in FIG. 9A, the two-stage display unit 63 displays the deviation between the measured value and the design value of the measured object stored in advance by controlling the upper unit segment U1, The measured value is displayed by controlling the lower unit segment U3. In FIG. 9B, the two-stage display unit 63 displays the measured value in the millimeter unit system by controlling the upper unit segment U1, and measures the measured value in the inch unit system by controlling the lower unit segment U3. Is displayed. In FIG. 9C, the two-stage display unit 63 displays the number of measurements by controlling the upper unit segment U1, and displays the measurement value by controlling the lower unit segment U3. In FIG. 9D, the two-stage display unit 63 displays the preset number by controlling the upper unit segment U1, and displays the preset value by controlling the lower unit segment U3. In FIGS. 10A and 10B, the two-stage display unit 63 displays the integer part by controlling the upper unit segment U1, and displays the decimal part by controlling the lower unit segment U3. Yes.

FIG. 11 is a diagram showing a display example when the display unit 5 displays a clock on the clock display unit 64.
When the display setting is switched to the clock display by the user, the clock display unit 64 displays time information as shown in FIG.
Specifically, in FIG. 11, the clock display unit 64 includes four segments S4 to S7 on the lower side in the upper unit segment U1 of the unit number unit 52, an intermediate unit segment U2, and an upper side in the lower unit segment U3. The time information is displayed by controlling the four segments S13 to S16 on the side and the dot display unit 53.

According to this embodiment, there are the following effects.
(1) The unit number portion 52 has a configuration in which three unit segments, that is, an upper unit segment U1, an intermediate unit segment U2, and a lower unit segment U3 are connected in the vertical direction. be able to.
(2) In the unit number part 52, the lower horizontal segment in the upper unit segment U1 and the upper horizontal segment in the intermediate unit segment U2 are formed of a common horizontal segment S7, and the lower horizontal segment in the intermediate unit segment U2 And the upper horizontal segment in the lower unit segment U3 is composed of a common horizontal segment S13. Therefore, it is possible to suppress an increase in the size of the display area as compared with the case where the three unit segments are simply arranged in the vertical direction.

(3) Since the display means 5 includes a plurality of unit number portions 52 arranged along the horizontal direction with respect to the digital numbers, the amount of information to be displayed is increased as compared with the case where one unit number portion is provided. Can be made.
(4) Since the control means 6 includes the display control unit 61, for example, the measurement value is displayed at an arbitrary position according to the display setting by the user, or the measurement value is displayed on the entire unit numeral unit 52. Display.
(5) Since the control means 6 is provided with the fraction display part 62, a measured value can be displayed by a fraction according to the display setting by a user, for example.

(6) Since the control means 6 is provided with the two-stage display part 63, for example, according to the display setting by the user, the upper unit segment U1 displays the measurement value in a predetermined unit system, and the lower unit segment. In U3, the measurement value by the unit system different from the unit system displayed in the upper unit segment U1 can be displayed. In addition, for example, when the integer part is displayed in the upper unit segment U1 and the decimal part is displayed in the lower unit segment U3, the integer part and the decimal part are displayed in one unit segment. In comparison, the number of display digits can be increased.

[Modification of Embodiment]
It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.
For example, in the above-described embodiment, the unit number portion 52 includes seven horizontal segments, but the unit number portion only needs to include at least seven horizontal segments.
In the above-described embodiment, the display unit 5 includes the five unit numeral parts 52 disposed at substantially the center position of the display area. However, the display unit 5 only needs to include at least one unit numeral part.
In the above embodiment, the display control unit 61 controls the position and size of the display unit 5 for displaying digital numbers, but is configured to control at least one of the position and size. Just do it.

  In the embodiment described above, the unit number portion 52 displays digital numbers in the upper unit segment U1, the intermediate unit segment U2, and the lower unit segment U3. On the other hand, for example, the unit numeric part has a total of seven segments composed of four segments on the lower side in the upper unit segment and four segments on the upper side in the middle unit segment, and the middle unit. A digital number may be displayed on each of a total of seven segments including four segments on the lower side in the segment and four segments on the upper side in the lower unit segment. In short, it is up to the designer how to display digital numbers in the unit number section.

In the embodiment, the control unit 6 includes the two-stage display unit 63 that causes the display unit 5 to simultaneously display two-stage digital numbers. On the other hand, the control means may be provided with a multi-stage display unit that causes the display means to simultaneously display three or more stages of digital numbers. In this case, the number of horizontal segments in the unit number portion may be increased in accordance with the number of digital numbers displayed simultaneously.
In the embodiment, the control unit 6 includes the display control unit 61, the fraction display unit 62, the two-stage display unit 63, and the clock display unit 64, and causes the display unit 5 to display various displays. It is up to the designer how to display the display.
In the embodiment, the caliper 1 is exemplified as the digital display type measuring instrument, but the present invention may be applied to other digital display type measuring instruments.

  The present invention can be used for a digital display-type measuring instrument, and can be particularly preferably used for a small digital display-type measuring instrument.

The front view of the caliper which concerns on embodiment of this invention. The enlarged view which shows the detailed structure of the display means in the said embodiment. The enlarged view which shows the detailed structure of the unit number part in the said embodiment. The block diagram which shows schematic structure of the caliper in the said embodiment. The figure which shows the example of a display at the time of controlling the position which displays a digital number on a display means in the display control part in the said embodiment. The figure which shows the example of a display at the time of controlling the magnitude | size which displays a digital number on a display means in the display control part in the said embodiment. The figure which shows the example of a display at the time of controlling the magnitude | size which displays a digital number on a display means in the display control part in the said embodiment. The figure which shows the example of a display at the time of displaying a fraction on a display means in the fraction display part in the said embodiment. The figure which shows the example of a display at the time of making it display in two steps in the two steps display part in the said embodiment. The figure which shows the example of a display at the time of making it display in two steps in the two steps display part in the said embodiment. The figure which shows the example of a display at the time of displaying a timepiece on a display means in the timepiece display part in the said embodiment.

Explanation of symbols

1 ... Vernier caliper (digital display type measuring instrument)
5 ... Display means 6 ... Control means 52 ... Unit number part 61 ... Display control part 62 ... Fraction display part 63 ... Two-stage display part S1, S4, S7, S10, S13, S16, S19 ... Horizontal segment S2, S3, S5 , S6, S8, S9, S11, S12, S14, S15, S17, S18... Vertical segment.

Claims (4)

A digital display-type measuring instrument comprising display means for displaying digital numbers and control means for controlling the display means,
The display means includes
A unit number portion for displaying the digital number in a plurality of segments formed in a substantially straight line;
The unit number part is
At least seven horizontal segments that extend along the horizontal direction with respect to the digital number and are arranged at predetermined intervals in the vertical direction, with both end positions in the horizontal direction aligned.
A plurality of vertical segments that extend along the vertical direction and that are respectively disposed between the left ends of the horizontal segments and between the right ends ,
The control means includes
A digital display-type measuring instrument comprising a fraction display unit for displaying a fraction on the display means . The digital display type measuring instrument according to claim 1,
The digital display-type measuring instrument characterized in that the display means includes a plurality of the unit numeral portions arranged along the horizontal direction. The digital display type measuring instrument according to claim 1 or 2,
The control means includes
A digital display-type measuring instrument, comprising: a display control unit that controls at least one of a position and a size at which the display unit displays the digital numeral. In the digital display type measuring instrument according to any one of claims 1 to 3,
The control means includes
A digital display-type measuring instrument comprising a multi-stage display section for simultaneously displaying at least two stages of the digital numbers on the display means .

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