JPS62142210A - Electronic display type measuring instrument - Google Patents

Abstract

PURPOSE:To form widely the display surface in a body by forming two members provided with an encoder and an electronic indicator, respectively, so that they can execute a relative rotation, and providing their switches so as to utilize a displacement in the peripheral direction, which follows its relative rotation. CONSTITUTION:An electronic switch 16 is turned on, and a probe 7 of a spindle 6 is made to abut on an object to be measured. Subsequently, a switch is operated. For instance, when selecting the maximum (Max) switch element 15, the first member 2 and the second member 3 are brought to a relative turning, and a driving contact 18 is connected to the element 15. In this state, on an element display part 4C of a display surface 4A, Max is displayed by a liquid crystal. When the contact 18 has stagnated din the element for a prescribed time length, a timer detects it, and a switch selector sends a signal to an electronic indicator 4 through a controller. As a result, the element 15 is selected and the maximum measured value is displayed on the second display part 4D of the display surface 4A. In the same way, other measuring element is also displayed. In this case, since the element 15 and the contact 18 have been provided in the peripheral edge direction of the members 2, 3, the display surface 4A can be formed widely.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an electronic display device that incorporates an encoder that converts a variable into an electrical signal related to a measurement object and that displays a constant value digitally and/or analogously. This relates to an electronic display type measuring device equipped with an electronic display, and can be used in general for dial gauges, length measuring devices such as calipers, heavy duty, temperature, speed measuring devices, and other measuring devices equipped with electronic display devices.

[1 Techniques and Problems] Measuring instruments for measuring length, thickness, width, shape, speed, etc. have a main body that can be slid freely, as shown in Figure 10. The movement of the spindle 51 is detected via the sensor 52, converted into an electrical signal by the encoder 53 built into the main body, the measurement element is specified by the switch 54 via the controller 55, and the measured value is displayed on the electronic display 56. Analog and/or digital displays are known. This measuring device is widely used because it has advantages such as high accuracy and easy readability.

By the way, in the measuring device, in order to obtain the maximum, minimum, and average values of the measured values, and to clear and hold the displayed value,
Alternatively, many switches are provided for inch/millimeter switching and also for power supply, and the number of switches is increasing as the functionality of the measuring instrument increases.

However, in recent years, measuring instruments have become smaller, such as portable and in-process types, as their uses have expanded, but these demands have not been met with the development of electronic technology, making it difficult for built-in devices such as encoders. Although this is fully satisfied, there is a problem in that there is a certain limit to the size of the switch. That is, as shown in FIG. 11 due to finger size and operability, the switch 57 must have a certain size, and the switch 57 must be located near the display, especially on the same surface as the display surface 58. Since a large number of switches 57 are installed, the measuring device 5 can be adjusted depending on the number and size of switches 57.
The overall size of 9 is determined.

On the other hand, if the size of the entire measuring instrument 59 and the switch 57 are limited, the width of the display surface 58 will be restricted, making it difficult to read the measured values, making it impossible to display various data at the same time, and furthermore, It also becomes difficult to add display functions such as procedures and pass/fail judgments. Therefore, depending on the switch, there is a problem in that there is a limit to the size of the display surface compared to the main body.

[Purpose of the invention]

An object of the present invention is to provide an electronic display type measuring instrument whose display surface can be formed wider than the main body.

[Means and effects for solving the problems] The present invention has the following features:
The main body of the electronic display type measuring instrument is formed to include a first member provided with an encoder and a second member provided with an electrical display, and the first member and the second member are connected to the electronic display. It is formed so that it can be rotated relative to each other so that its posture can be changed.
A switch for operating the encoder and/or the electronic display is provided so as to be actuated by utilizing circumferential displacement caused by relative rotation of the first member and the second member,
This aims to achieve the above object by reducing or removing the operation buttons from the outer end surface of the second member.

〔Example〕

Embodiments of the present invention will be described below based on the drawings. Here, the description of the same or equivalent components in each embodiment will be omitted or simplified.

A first embodiment is shown in FIGS. 1-6.

In FIGS. 1 and 2, a main body 1 of a dial gauge as an electronic display type measuring device includes a first member 2 and a second member 3 each having a cylindrical portion with an open end surface.
The second part 3 is provided with an electronic display 4 that digitally displays measured values. A groove (1) is formed on the outer circumferential surface of the cylindrical portion of the first member 2, and a concave groove is formed on the inner circumferential surface of the cylindrical portion of the second member 3.
An O-ring 5 is interposed between the groove and the concave groove, whereby the first member 2 and the second member 3 are connected to be relatively rotatable so that the attitude of the electronic display 4 can be changed. At this time, the center of relative rotation between the first member 2 and the second member 3 is determined by the center of the diameter of the groove, etc.
Alternatively, it may not coincide with the center of the second member 3.

A spindle 6 is slidably supported on the first member 2, and the spindle 6 is provided with a measuring element 7 at its lower end, and a scale is provided at a substantially central position within the first member 2. A mounting base 8 is attached. A main scale 9 is attached to the scale mount 8 in parallel to the axis of the spindle 6. Further, a holding member 10 is fixed to the inner wall of the first member 2 on the first side. A holder 11 is held in the holding member 10 in a notch 10A formed in a substantially hollow shape, and the holder 11 includes an index scale 12 and a light receiver 13 at a position facing the optical grating surface of the main scale 9. is provided. In addition, Inte.

An optical grating corresponding to the optical grating of the main scale 9 is also formed on the scale scale 12 . Further, a light emitter 14 is fixed to the holding member 10 at a position opposite to the light receiver 13 with the main scale 12 in between. In addition, as shown in FIG. 3, the internal information of the first member 2 is such that a predetermined number of switch elements 15 move along a circular trajectory having a common center of relative rotation of the first and second members 2.3. arranged on top. Each of the switch elements 15 has functions of appropriate measurement elements such as inch/millimeter switching, (+)/(-) switching, preset, hold, maximum (Max), minimum (Min), and pass/fail judgment results. In FIG. 3, four switch elements 15 can be selected for convenience, but the number of switch elements can be selected as appropriate.

On the other hand, on the front surface of the second member 3, as shown in FIG. The value is displayed digitally, and a power supply ○N10FF switch 16 is provided at the bottom. Here, the display surface 4A is formed wider than the conventional display surface, as shown in FIG. , consists of an element display section 4C that displays predetermined measurement elements other than inch/millimeter switching among the measurement elements using a liquid crystal, and a second display section 4D that displays the measured value of the predetermined measurement element. There is.

On the right side of the first and second display sections 4B and 4D, in
Or, it is possible to display the front position of the fin.

On the inner end surface of the second member 3, as shown in FIG. By displacing in the circumferential direction, the connection point with the switch element 15 is switched. At this time, switch element 15
The connection between the drive contact 18 and the drive contact 18 is as shown in FIG.
The second member 3 is attached to the switch element 15 embedded in the first member 2.
This is done by abutting the tip of a convex drive contact 18 protruding from the .

A board 19 and a board 20 are fixed in parallel to each other between the first member 2 and the second member 3, and a flat cable 21 as a strip-shaped wiring is connected between the board 19 and the board 20. is provided. The flat cable 21 has a band shape in which a plurality of wires are arranged parallel to each other, and is formed to have a constant curvature equal to the circular locus (see FIGS. 3 and 4). At the time of assembly, it is reversed midway, and the one end 21A side is on the first member 2 side substrate 19 on the circular locus.
The other end 21B side is fixed to the substrate 20 on the second member 3 side on the circular locus. Further, each of the switch elements 15 is provided on the substrate 19 and the substrate 20.
and the drive switch 18, respectively.
Electrical components 22 and 23 are connected to both ends 2 of the flat cable 21.
1A and 21B, respectively, to electrically connect the electrical components 22 and 23.

The first electrical component 22 is connected to the light receiver 12, and includes an encoder 24, a counter 25, a controller 26, a switch selector 27, and a timer 28, as shown in the circuit diagram of FIG. . The encoder 24 converts the spindle movement displacement signal sent from the light receiver 12 into an electrical signal, encodes it, and sends it to the counter 25. The counter 25 counts the encoded signal and sends it to the controller 26. send. Then, the controller 26 sends a signal to the electronic display 4, and the display screen 4
Fluctuation measurement values accompanying the movement and displacement of the spindle 6 are displayed on the first display section tB of A. On the other hand, the timer 28 is connected to a switch selector 27, and the switch selector 27 is connected to the drive contact 18 and each switch element 15. Said switch selector 2
7 electronically sends a signal via the controller 26 to display the function of the switch element 15 on the display surface 4A (7) and the element display section 4C when the drive contact 18 and any switch element 15 are connected. When the timer 28 detects that the switch element 15 has stagnated for a predetermined period of time, the switch element 15 is selected and the content of the switch element 15 is displayed on the second display section 4D of the display surface 4A. A signal is sent to the electronic display 4 via the controller 26 to display the corresponding measured value. here,
Each switch element 15 and the drive contact 18 form a switch 29, and the switch 29 has one switch 29.
When one switch element 15 is selected, the measured value of the one switch element 15 is activated, and when a different switch element 15 is selected, the measured value of the one switch element 15 is changed to the display surface 4.
The measured value of the newly selected element 15 that has been erased from the second display section 4D of A is displayed, and thereby the electronic display 4 can be operated. At this time, the switch element 15 includes an in/m changeover switch element 15A, and this switch element 15A is set to in/m by connecting and selecting the drive contact 18.
and dragon are chosen, the measured value at that time and i
n or 1 m is displayed on the first and second display sections 4B and 4D.

In such a configuration, the electronic display measuring instrument according to this embodiment is operated as follows.

First, the power switch 16 is turned on, and the probe of the spindle 6 is brought into contact with an object to be measured (not shown). As a result, the measured value of fluctuation caused by the movement and displacement of the spindle 6 is displayed on the first display section 4B of the display surface 4A.

Next, switch 29 is activated. For example, maximum (Ma
x) To select a switch element 15, the first member 2 and the second member 3 are rotated relative to each other, and the drive contact 18 is connected to the switch element 15.

As a result, Max is displayed on the element display section 4C of the display surface 4A using the liquid crystal. When the drive contact 18 of the MaX switch element 15 remains stagnant for a predetermined period of time, the timer 28 detects this and the switch 27 sends a signal to the electronic display 4 via the controller 26. As a result, the Max switch element 15 is selected and the measured maximum value is displayed on the second display section 4D of the display surface 4A.

Moreover, when it is desired to measure other measurement elements, for example, the minimum value, the first member 2 and the second member 3 are rotated relative to each other, and the minimum value (
Min) connecting the drive contact 18 to the switch element 15; As a result, the element display section 4C of the display surface 4A has M
"in" is displayed.

When the drive contact 18 is stagnant at the Min switch element 15 for a predetermined period of time, the timer 28 detects this, and the second signal is sent to the display surface 4 via the switch selector 27 etc. as described above.
The minimum value of the measured values is displayed on the display section 4D instead of the maximum value.

According to the first embodiment, since the switch element 15 and the drive contact 18 are provided in the circumferential direction of the first member 2 and the second member 3, the number of operation buttons from the outer end surface of the second member 3 is reduced. The display surface 14A can be formed wider than the size of the main body 1.

Therefore, by forming the display surface 14A wide, measurement values can be easily read, and various data can be displayed simultaneously, display functions can be added, and functions can be expanded. Conversely, even if the display surface 4A is the same as the conventional one, the main body 1
It can be made smaller than conventional ones, and can meet the current demand for smaller measuring instruments. In addition, in the first embodiment, the measured value of the switch 29 is automatically turned off when a different switch 29 is activated after the predetermined switch 29 is activated. No need for a switch to clear. Furthermore, since the drive contact 18 is formed with a convex tip and protrudes from the inner circumferential surface of the second member 3, and the switch element 15 is embedded in the inner circumferential surface of the first member 2, the first
The second part (2.3) can be smoothly connected to the switch element 15 and the drive contact 18 by the relative rotation of the second part (2.3).

A second embodiment of the invention is shown in FIGS. 7 and 8.

The second embodiment differs from the first embodiment in that the display screen is analog and digital and a selection switch is provided instead of a timer, but the other configurations are approximately the same as the first embodiment. .

In FIG. 7, the second member 3 of the main body 1 is provided with an electronic display 30, and a display surface 30A of the electronic display 30 displays measured values that vary with the movement and displacement of the spindle 6 in real time in analog form. An analog display section 30B that displays a display, a selected element display section 30E that displays a selected measurement element on a liquid crystal display when any switch element is selected, and a selected element display section 30E that displays a measurement value of the selected element digitally. It is provided with a second display section 30D for displaying.

Further, a power switch 1 is provided on the outer end surface as in the first embodiment.
6 is provided, and a connection element display section 30C and a selection button 32 are provided, and the connection element display section 30C
The liquid crystal displays which switch element is connected to the drive contact. Note that a selection switch may be provided on the outer circumferential surface of the second member 3, as shown by a break i33. Although not shown in FIG. 7, in the second embodiment, like the first embodiment, the inside of the main body 1 includes a switch element, a drive contact, a flap/nod cable,
First and second electrical components, etc. are provided, and these switch elements are arranged on a circular locus that coincides with the FO rotation center of the first and second members (see Fig. 2). (See Figure 5).

The first one in the second example corresponds to the first electrical component crystal 22 in Fig. 2.
The electrical equipment crystal 22A includes an encoder 24, a counter 25, a controller 26, and a switch selector 34, as shown in the circuit diagram of FIG. The functions of the encoder 24 and the like are substantially the same as in the first embodiment, but the function of the switch selector 34 is different from the switch selector 27 of the first embodiment. That is, the switch selector 34 is connected to the selection button 32) drive contact 18 and a predetermined plurality of switch elements 15, and when any switch element 15 and drive contact 18 are connected, the element is displayed in the connected element display section 30C. If the selection button 32 is pressed, the switch element 15 is selected, and the selection element display section 30E and the second display section 30 are displayed.
A signal can be sent to an electronic display 30 via the controller 26 so that the switch element and its measured value are displayed at D. On the other hand, when the first member 2 and the second member 3 are relatively rotated and another switch element 15 and drive contact 18 are connected, the corresponding switch element is displayed on the connected element display section 30C, Besides, select button 3
2 is pressed, the switch element 15 of the relevant gender is selected, and instead of the element 15, the switch element 15 of the relevant gender and its measurement value are displayed on the selection switch element 30E and the second display section 30D, respectively. It has become. Furthermore, the measured values of fluctuations accompanying the movement and displacement of the spindle 6 are displayed in real time on the analog display section 30B via the encoder 24, counter 25, and controller 26. At this time, in the second embodiment,
A switch 29 is formed by the drive contact 18 , each switch element 15 and the selection button 32 .

Further, as in the first embodiment, the switch element 15 includes in/
A mm changeover switch element 15A is included, and when this switch element 15 is selected, an indication of in or ll1m and the measured value in that case are displayed on the second display section 30D.

According to the second embodiment, it has the same effect as the first embodiment, and the switch element can be selected by the selection button 32, and the first electrical component The structure of the internal circuit can be simplified.

FIG. 9 shows a circuit diagram of a third embodiment of the present invention. In the second embodiment, a selection button.

32 was provided, but in the third embodiment, two were provided,
The other configurations are substantially the same as the second embodiment.

According to this, by combining the two selection buttons 32 and the four switch elements 15, eight types of switches can be selected, and a small number of switch elements can increase the iH efficiency of a large number of switch elements. can do.

In each of the above embodiments, the electronic display type measuring device is a dial gauge, but the present invention is not limited to this. It may be a weight scale configured to be moved or displaced, or a speedometer that determines the speed from the amount of displacement of the Svindl's height time. Further, the switch 29
Any device that can operate by utilizing the circumferential displacement of the first and second members 2 and 3 may be used. The switch element 15 and the drive contact 18 are provided on the outer and inner circumferential surfaces, and the switch element 15 has both fixed and movable contacts and functions as a switch by itself. The contact 18 may be simply a convex portion that brings both contacts of each of the switch elements 15 into contact. By using a microb/7 switch, etc., it is possible to avoid failures in conduction caused by dirty contacts. In addition, each of the above-mentioned embodiments is provided with a measurement program, and the outline drawing of the object to be measured, the dimensions to be measured, the contact point of the probe, etc. are displayed, and the electronic display 4, 30 shows the program number It may also be possible to display whether an operation is being performed, and with this, the display function can be further expanded. Furthermore,
If the power switch 16 and the like are provided on the circumferential surface of the main body 1, the switches can be swept away from the outer end surface of the second member 3, and the display surfaces 4A and 30A can be made wider. Also,
The principle of the encoder 24 is not limited to the photoelectric type, but may be of any type such as a capacitance type or an electromagnetic type as long as it can detect the amount of ring displacement.Furthermore, the encoder 24 is not limited to a linear type, and may be a rotation type. .

Furthermore, in each of the embodiments described above, there is no particular means for the measurer to actually detect when the drive contact 18 matches the position of each switch element 15;
A normal moderation mechanism consisting of a concave portion and an elastic protrusion may be provided between the members 2 and 3 to provide a click feeling for each switch element 15 so that the user can experience the matching of the positions. Further, in the first embodiment, the element display section 4C of the display surface 4A is formed of liquid crystal, but a lamp may be provided for each switch element and each switch element may be displayed by blinking the lamp. However, as in the first embodiment, if liquid crystal is used, the display surface 4A can be formed wide, making it easier to read the first and second display sections 4B and 4D. Furthermore, the analog display section 30B in the second embodiment displays measured values using liquid crystal.

〔Effect of the invention〕

According to the present invention as described above, there is an effect that the display surface of the electronic display type measuring instrument can be formed wider than the main body.

[Brief explanation of drawings]

Fig. 1 is a front view of the first embodiment of the present invention, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, and Figs. 3.4 and 5 are m-m in Fig. 2. , rv-rv and V-■ line, FIG. 6 is a circuit diagram of the first embodiment, FIG. 7 is a front view of the second embodiment of the present invention, and FIG. 8 is a circuit diagram of the second embodiment. The circuit diagram of the embodiment, FIG. 9 is the circuit diagram of the third embodiment according to the present invention, the first
0 is a circuit diagram of a conventional example, and FIG. 11 is a front view of the conventional example. ■... Main body, 2... First member, 3... Second member,
4゜30...Electronic display, 6...Spindle, 15
...Switch element, 21...Striped wiring, 22.23
...Electrical equipment, 24...Encoder, 29...Switch, 32...Selection button.

Claims (3)

[Claims] (1) An electronic display type measuring instrument that has an encoder built into the main body that is involved in the measurement target and converts a variable into an electrical signal, and is equipped with an electronic display that displays measured values in digital and/or analog form. A first member provided with the encoder and a second member provided with the electronic display are formed, and the first member and the second member are arranged so that the attitude of the electronic display can be changed. The switch is formed to be relatively rotatable, and a switch for operating the encoder and/or the electronic display is provided so as to be actuated by utilizing the circumferential displacement caused by the relative rotation with the first and second members. An electronic display type measuring instrument featuring: (2) In claim 1, the switch is formed to include a plurality of switch elements arranged on a circular locus having a common center of relative rotation with the first and second members. and an electronic display type measuring instrument, characterized in that the switch element is selected depending on the length of time during which it stagnates. (3) In claim 1, the switch includes a plurality of switch elements arranged on a circular locus having a common center of relative rotation with the first and second members, and one switch element. An electronic display type measuring instrument comprising: a selection button for selecting a selection button;