TW201445113A - Capacitance type level-adjusting device - Google Patents

Abstract

This invention provides capacitance type lever-adjusting device, including: a plurality of conductive fixed boards 4 having surfaces A located at the same plane B and electrically insulated from one another, and positioned along the surface A with a constant interval; a single conductive movable board 6 having an opposing surface C being opposite to the plane B; a guide 16 guiding the opposing surface C of the conductive movable board 6 along the plurality of conductive fixed boards 4 to approach to or be biased related to the surfaces A of the plurality of conductive fixed boards 4; and a calculation device 8 calculating the position of the conductive movable board 6 according to capacitance generated between the conductive fixed boards 4 and the conductive movable board 6, and outputting a electric signal corresponding the position; and further including a knob 24 manipulating the conductive movable board 6 along the plurality of conductive fixed boards 4 in an automatic manner or a manual manner, and maintaining its position while it is not manipulated.

Description

Electrostatic capacitance level adjustment device

The present invention relates to an electrostatic capacitance level adjusting device for adjusting an output level of a volume or a light amount.

A fader device has been used as a leveling device since the past. The illuminator device is a device that changes a volume, a light amount, or the like by a person manually moving a slide linearly.

In the case of such a level adjusting device, for example, Patent Documents 1 to 3 are known.

Patent Document 1 discloses a sliding type volume device in which a movable element is brought into contact with two printing resistors to be turned on, and is slid over the two printing resistors.

The linear displacement sensor of Patent Document 2 moves the rod-shaped permanent magnet in a non-contact Hall (IC) state, and measures the voltage output from the Hall IC, thereby measuring the rod shape. The distance the permanent magnet moves.

The level adjustment device of Patent Document 3 displays a GUI (graphic user interface) on an operation panel and an operation element that is moved on the operation member on a touch panel, and touches with a finger. The control panel moves the operating elements, thereby adjusting the output of the volume and the like.

[Previous Technical Literature] [Patent Literature] [Patent Document 1]

Japanese Patent Publication No. 8-97015

[Patent Document 2]

Japanese Special Publication No. 2006-300631

[Patent Document 3]

International Publication No. 2008/126130

The sliding volume device of Patent Document 1 is required to slide the movable member while it is always in contact with the printing resistor. Therefore, there is a problem that the contact portion of the movable member is worn or deteriorated.

Further, in Patent Document 2, it is difficult to make the change in the output voltage obtained from the Hall IC proportional to the moving distance of the rod-shaped permanent magnet. Therefore, it is difficult to accurately detect the position of the rod-shaped permanent magnet from the magnetic change of the rod-shaped permanent magnet. Further, since the magnetic change is easily affected by temperature changes, humidity changes, and the like, there is a possibility that an error occurs due to such variations.

Furthermore, since the linear displacement sensor of Patent Document 2 is analogous, there is a problem that the stability of the output is not good.

In addition, it is almost impossible for the finger released from the touch panel to return to its original position. Therefore, in the level adjusting device of Patent Document 3, it is difficult to restart the operation of the operating element from the position where the finger is released on the touch panel, and the operability is poor.

The present invention has been developed in view of solving the above problems. In other words, the object of the present invention is to provide a capacitance type level adjusting device which is less stable in wear and deterioration, can maintain a function stably for a long period of time, and is less susceptible to temperature changes and humidity changes, and which is stable and has good operability.

According to the present invention, there is provided an electrostatic capacitance level adjusting device characterized by comprising: a plurality of conductive fixing plates, the surfaces are located on the same plane, electrically insulated from each other, and positioned at a fixed interval along the surface; a conductive moving plate having a facing surface opposite to the plane; a guide such that the opposing surface of the conductive moving plate approaches or imparts potential energy to the surface of the plurality of conductive fixing plates And a plurality of conductive fixing plates are guided; and the computing device calculates the position of the conductive moving plate based on the electrostatic capacitance generated between the conductive fixing plate and the conductive moving plate, and outputs an electrical signal corresponding to the position And further having a knob that can operate the conductive moving plate manually or automatically along a plurality of conductive fixing plates and maintain their position when not in operation.

Further, the guiding member is a linear guiding member that guides the conductive moving plate along the plurality of conductive fixing plates in a straight line; the linear guiding member has: a pair of parallel bars, which are parallel with respect to the aforementioned surface and are spaced apart from each other a fixed interval; and a non-conductive movable member having a pair of through holes through which the parallel bars pass, and is guided linearly along a pair of parallel bars; and conductive is fixed to a side of the movable member opposite to the conductive fixing plate The movable moving plate; and further has a position maintaining mechanism that prevents the movement of the knob when the aforementioned knob is not operated.

Further, the guide member is a linear guide that guides the conductive moving plate along the plurality of conductive fixing plates in a straight line; the linear guide member a flat plate extending parallel to the surface; and a non-conductive movable member having a through hole through which the flat plate penetrates, and being guided linearly along the flat plate; and the movable member is opposed to the conductive fixed plate A conductive moving plate is fixed to the side; and further has a position maintaining mechanism that prevents the movement of the knob when the aforementioned knob is not operated.

Further, the guide member is a circular arc guide that guides the conductive moving plate along the plurality of conductive fixing plates in an arc shape; the plurality of conductive fixing plates are positioned to extend perpendicular to the plane a circular arc-shaped center of the heart and a circular arc shape in the circumferential direction; the circular arc guide has a rotating shaft that can be rotated about the axis; the rotating circular plate is fixed to the rotating shaft; The conductive moving plate is fixed to the side opposite to the conductive fixing plate; and further has a position maintaining mechanism for preventing the movement of the knob when the knob is not operated.

Further, a plurality of conductive fixing plates are provided on the surface of the flat substrate, and have non-conductive portions at regular intervals between adjacent conductive fixing plates.

Further, the length of the conductive moving plate in the moving direction is set to be longer than the total length of one of the conductive fixing plates and the two non-conductive portions adjacent to the conductive fixing plate.

Further, the arithmetic device detects the capacitance of the plurality of conductive fixing plates, and the conductive fixing plate that displays the maximum value from the plurality of detected electrostatic capacitances and the adjacent one of the conductive fixing plates The position of the conductive moving plate is calculated by the adjacent value of the capacitance of the conductive fixing plates.

Further, by the above calculation, the position of the center of gravity of the maximum value and the two adjacent values is set as the position of the conductive moving plate.

In addition, the arithmetic device is disposed on the substrate; One step has a wiring circuit for electrically connecting a plurality of conductive fixing plates to the computing device.

Further, a gap is formed between the surface of the conductive fixing plate and the opposing surface of the conductive moving plate at a fixed interval.

Further, the electrostatic capacitance level adjusting device includes: a non-conductive coating layer covering the surface of the conductive fixing plate; and a pushing member that presses the opposite surface of the conductive moving plate with a fixing surface to conduct electricity The surface of the fixing plate imparts potential energy; the conductive moving plate causes the opposing surface to slide in contact with the coating layer.

Further, the position holding mechanism is an elastic member, a resin processed component, or a metal plate that is inserted between the inner surface of the through hole and the parallel bar.

Further, the position maintaining mechanism is an elastic member, a resin processed component, or a metal plate that is in contact with the outer peripheral surface of the rotating shaft.

According to the electrostatic capacitance type level adjusting device of the present invention described above, the guide member is configured such that the opposite surfaces of the conductive moving plate approach or impart potential energy to the surface of the plurality of conductive fixing plates along a plurality of The conductive fixing plate is guided, and the arithmetic device calculates the position of the conductive moving plate based on the electrostatic capacitance generated between the conductive fixing plate and the conductive moving plate, and outputs an electric signal corresponding to the position, thereby electrically conducting The moving plate or the conductive fixing plate has less wear or deterioration. Therefore, the function of the electrostatic capacitance level adjusting device can be stably maintained for a long period of time.

Further, the electrostatic capacitance type level adjusting device of the present invention detects the position of the conductive moving plate based on the electrostatic capacitance generated between the conductive fixing plate and the conductive moving plate, and thus is less susceptible to temperature changes and humidity changes. Impact It is stable.

Furthermore, the electrostatic capacitance level adjusting device of the present invention has a knob that can operate the conductive moving plate manually or automatically along a plurality of conductive fixing plates, and maintains its position during non-operation, so even The user interrupts the operation by releasing the finger from the knob during manual operation, or interrupts the operation from the instruction button for automatically controlling the knob or the mouse to release the finger during the automatic operation, or the same as when the finger is released. Since the position starts the operation again, the operability is good.

2‧‧‧Electrostatic capacitance level adjustment device

4, 4a to 4e‧‧‧ Conductive fixing plate

6‧‧‧Electrically conductive board

8‧‧‧ arithmetic device

10‧‧‧Substrate

12‧‧‧ Non-conducting department

13‧‧‧film layer

14‧‧‧Wiring circuit

16‧‧‧Guide

16a‧‧‧Line guides

16b‧‧‧Arc guides

18a, 18b‧‧‧ parallel bars

19‧‧‧ movable components

20a, 20b‧‧‧through holes

24‧‧‧ knob

26‧‧‧Location Maintenance Agency

28‧‧‧Booster components

30‧‧‧Ontology

30a‧‧‧ slit

30b‧‧‧ openings

32‧‧‧Rotary axis

34‧‧‧Rotating circular plate

A‧‧‧ surface

B‧‧‧ Plane

C‧‧‧ opposite

D‧‧‧ gap

E‧‧‧above

F‧‧‧ threshold

O‧‧‧ fixed point

Coordinate values for X, Xa, Xb, Xc, Xd, Xe‧‧

Y1, Y2, Y3‧‧‧ max

Z1, Z2‧‧‧ adjacent values

P‧‧‧Center of gravity

Fig. 1A is an external view of the electrostatic capacitance type level adjusting device according to the first embodiment of the present invention.

Fig. 1B is an external view of the electrostatic capacitance type level adjusting device according to the first embodiment of the present invention.

Figure 2A is an A-A arrow diagram of Figure 1A.

Figure 2B is a B-B arrow diagram of Figure 1B.

Figure 2C is a C-C arrow diagram of Figure 1B.

Figure 3 is a circuit diagram of a substrate of the present invention.

Fig. 4A is a schematic cross-sectional view showing the electrostatic capacitance level adjusting device of the present invention.

Fig. 4B is a graph showing the electrostatic capacitance detected from the conductive fixing plate.

Fig. 5 is an explanatory view showing a capacitance type level adjusting device according to a second embodiment of the present invention.

Fig. 6A is an external explanatory view of a capacitance type level adjusting device according to a third embodiment of the present invention.

Figure 6B is a D-D arrow diagram of Figure 6A.

Figure 7A is an E-E arrow diagram of Figure 6B.

Figure 7B is a F-F arrow diagram of Figure 6B.

Fig. 8A is an external explanatory view of a capacitance type level adjusting device according to a fourth embodiment of the present invention.

Fig. 8B is an explanatory view of a substrate of the capacitance type level adjusting device according to the fourth embodiment of the present invention.

Embodiments of the present invention will be described below based on the drawings. In the drawings, the same reference numerals are given to the same portions in the respective drawings, and the overlapping description will be omitted.

[First Embodiment]

Fig. 1A is an external view of the electrostatic capacitance type level adjusting device 2 according to the first embodiment of the present invention. Fig. 1B is an external view of the electrostatic capacitance type level adjusting device 2 according to the first embodiment of the present invention.

2A is a B-B arrow diagram of FIG. 1B, and FIG. 2C is a C-C arrow diagram of FIG. 1B.

As shown in FIG. 1, the capacitance type level adjusting device 2 (hereinafter referred to as a level adjusting device 2) of the present invention includes a substrate 10 and a body 30 that covers the upper side of the substrate 10.

As shown in Figs. 2A and 2B, the main body 30 of the first embodiment of the level adjusting device 2 of the present invention has a box-shaped case having an opening 30b on the bottom surface thereof, and has a single conductive movement. Plate 6, guide 16, and knob 24. Further, on the upper surface of the main body 30 of the present embodiment, as shown in Figs. 1A and 2B, a slit 30a for slidable the knob 24 is provided.

From the slit 30a, a portion of the knob 24 emerges from the body 30, and the user can manually slide the knob 24 along the slit 30a. Furthermore, when the user slides the knob 24 manually, the output level of the volume, the amount of light, and the like changes with the amount of movement of the knob 24.

In addition, the slit 30a of the body 30 is disposed in parallel with the guide member 16.

As shown in FIG. 2C, the substrate 10 of the level adjusting device 2 of the present invention includes a plurality of conductive fixing plates 4 on the upper surface E of the substrate 10, and the arithmetic unit 8 is provided on the upper surface E or the back surface of the substrate 10. Further, as shown in FIG. 1B, the substrate 10 is fitted into the opening 30b with the upper surface E facing the main body 30.

As shown in FIG. 2C, a plurality of conductive fixing plates 4 are present in the substrate 10, and the surfaces A are located on the same plane B and are electrically insulated from each other and positioned at a fixed interval along the surface A. Further, the conductive fixing plate 4 is a non-conductive portion 12 having a fixed interval from the adjacent conductive fixing plate 4.

It is preferable that the plurality of conductive fixing plates 4 are provided on the surface of the upper surface E of the flat substrate 10. However, the conductive fixing plate 4 may be provided on other members instead of the substrate 10.

Further, it is preferable that the surface A or the side surface of the conductive fixing plate 4 is covered with a thin film layer 13 which is not electrically conductive (see FIG. 4A). The film layer 13 is made of a resin, a film, or a plastic. However, in the substrate 10 of the present embodiment, the film layer 13 may not be provided.

Fig. 3 is a circuit diagram of the substrate 10 of the present invention.

The conductive fixing plate 4 is a plurality of conductive plates having the same size. The conductive fixing plate 4 is preferably a rectangular metal plate such as a copper plate. However, as long as it has conductivity, it may be other materials, and may have other shapes.

Further, as will be described later, the level adjusting device 2 of the present invention calculates the position of the center of gravity P by the arithmetic unit 8, thereby detecting the position of the conductive moving plate 6, and thus the wireiness of the moving direction. The length of the fixing plate 4 can be made larger than the width of the resolution of the arithmetic unit 8.

The non-conductive portion 12 is present at a fixed interval non-conductive portion between the adjacent conductive fixing plates 4. The lengths of the plurality of non-conductive portions 12 of the conductive moving plates 6 in the moving direction are the same. The non-conductive portion 12 may simply be a space in which the conductive fixing plate 4 is not present. Alternatively, the non-conductive portion 12 may be made of a non-conductive material such as rubber sandwiched between the adjacent conductive fixing plates 4.

The arithmetic unit 8 is provided on the substrate 10 (the upper surface E or the back surface of the substrate 10) for detecting the electrostatic capacitance of the plurality of conductive fixing plates 4, respectively. Alternatively, the arithmetic unit 8 may be provided on the back surface of the substrate 10. Further, the arithmetic unit 8 calculates the position of the conductive moving plate 6 based on the electrostatic capacitance generated between the conductive fixing plate 4 and the conductive moving plate 6, and outputs an electric signal corresponding to the position.

Further, the arithmetic unit 8 may be provided at a place other than the substrate 10.

Furthermore, the substrate 10 has a wiring circuit 14 for electrically connecting each of the plurality of conductive fixing plates 4 to the arithmetic unit 8.

That is, the wiring circuit 14 is electrically connected to the arithmetic unit 8 at one end, and is electrically connected to one conductive fixing plate 4 at the other end. Furthermore, each of the wiring circuits 14 is electrically insulated from each other.

Thereby, the arithmetic unit 8 can individually detect the electrostatic capacitance generated in each of the conductive fixing plates 4.

As shown in FIG. 2, the guide member 16 causes the opposing surface C of the conductive moving plate 6 to approach or impart a potential to the surface A of the plurality of conductive fixing plates 4. It can be guided along a plurality of conductive fixing plates 4.

As shown in Fig. 2A, the level adjusting device 2 of the first embodiment has a gap D between the surface A of the conductive fixing plate 4 and the opposing surface C of the conductive moving plate 6 at a fixed interval. The opposite surface C approaches the surface A. The width of the gap D is preferably within 1 mm.

According to the level adjusting device 2 of the first embodiment of the present invention, the conductive moving plate 6 can be placed along the surface A of the conductive fixed plate 4 without contacting the surface A of the conductive fixing plate 4. The guide member 16 slides, so that the conductive fixing plate 4 or the conductive moving plate 6 does not wear or deteriorate. Therefore, the function of the level adjusting device 2 can be stably maintained for a long period of time.

The guide member 16 according to the first embodiment of the present invention guides the linear guide 16a of the conductive movable plate 6 linearly along the plurality of conductive fixing plates 4. The linear guide 16a has: a pair of parallel bars 18a, 18b spaced apart from each other by a fixed interval with respect to the surface A, and spaced apart from each other by a fixed interval; and a non-conductive movable member 19 along a pair of parallel bars 18a 18b is guided in a straight line.

It is preferable that the parallel bars 18a and 18b are fixed to the body 30 at both ends.

The movable member 19 has a pair of through holes 20a and 20b (not shown) penetrating through the parallel bars 18a and 18b, and a conductive moving plate 6 is fixed to the side of the movable member 19 facing the conductive fixing plate 4. .

Further, the guide member 16 of the level adjusting device 2 of the present invention has a position holding mechanism 26 for preventing the movement of the knob 24 when the knob 24 is not operated.

The movable member 19 of the present embodiment has a position holding mechanism 26 between the inner faces of the through holes 20a and 20b and the parallel bars 18a and 18b. Position protection of the first embodiment The holding mechanism 26 is preferably an elastic member, a resin processed component, or a metal plate inserted between the inner faces of the through holes 20a and 20b and the parallel bars 18a and 18b.

Further, the position holding mechanism 26 of the first embodiment is not limited to these, and may be another mechanism as needed.

Further, the linear guide 16a of the present embodiment may have a flat plate or other configuration as long as the conductive movable plate 6 is guided in a straight line along the plurality of conductive fixing plates 4 so as to extend in parallel with the surface A. Instead of the parallel bars 18a, 18b. That is, it may have a flat plate extending in parallel with respect to the surface, and a non-conductive movable member having a through hole penetrating through the flat plate and guided along the flat plate in a straight line.

The level adjusting device 2 according to the first embodiment of the present invention includes the position holding mechanism 26, whereby the position of the movable member 19 can be held even if the user releases the hand from the knob 24.

The knob 24 is a knob or movable member that can manually operate the conductive moving plate 6 along a plurality of conductive fixing plates 4 while maintaining its position when not in operation.

Further, the knob 24 may be a knob or a movable member that can automatically operate the conductive moving plate 6 along the plurality of conductive fixing plates 4 while maintaining its position during non-operation.

At this time, it is preferable to automatically control the operation of the knob 24 by a known actuator and a control device in accordance with an instruction given by the user by operating the instruction button or the mouse.

Thus, the level adjusting device 2 of the present invention has the knob 24 that maintains its position when not in operation, so that the user interrupts even if the user releases the finger from the knob 24. In operation, the operation operation can be resumed from the same position as when the finger is released, so that the operability is good.

The conductive moving plate 6 has a facing surface C that is used alone and faces the plane B.

The length of the conductive moving plate 6 in the moving direction is set to be longer than the length of one of the conductive fixing plates 4 and the two non-conductive portions 12 adjacent to the conductive fixing plates. The length of the conductive moving plate 6 in the moving direction may be longer than the length of the two or more conductive fixing plates 4 and one non-conductive portion 12 in the moving direction. Further, the conductive moving plate 6 may actually cover three or more conductive fixing plates 4.

Therefore, the arithmetic unit 8 can obtain the center-of-gravity position P of the electrostatic capacitance to be described later based on the electrostatic capacitance of the three conductive fixing plates 4, or can be detected from four or more conductive fixing plates 4. The electrostatic capacitance is used to find the center of gravity P.

Further, the conductive moving plate 6 is preferably a gold-plated brass, but may be other materials as long as it is a conductive metal. Further, the conductive moving plate 6 is preferably a rectangular shape, but may have another shape.

Further, since the level adjusting device 2 of the present invention detects the position of the center of gravity P obtained by the calculation as the position of the conductive moving plate 6, the length of the moving direction of the conductive moving plate 6 can be compared with that of the arithmetic device 8. The width of the resolution is large.

Next, the mechanism of the present invention will be described using the level adjusting device 2 of the first embodiment of the present invention.

Fig. 4A is a schematic cross-sectional view showing the level adjusting device 2 of the present invention, and Fig. 4B is a graph showing the electrostatic capacitance detected from the conductive fixing plates 4a to 4e.

Moreover, the conductive fixing plate 4 of FIG. 4A is made of the conductive fixing plates 4a, 4b, 4c, 4d, and 4e from the left. Further, in the fourth drawing, the x-axis is the coordinate value X at the position of the conductive fixing plate 4, and the y-axis is the electrostatic capacitance.

As shown in Fig. 4A, the conductive moving plate 6 is guided by the guides 16 (see Fig. 2A) and moves along the plurality of conductive fixing plates 4a to 4e. Each of the conductive fixing plates 4 is provided with one wiring circuit 14 (see FIG. 3), and each of the wiring circuits 14 is electrically insulated from each other, and is connected to the arithmetic unit 8 (see FIG. 3).

The arithmetic unit 8 detects the electrostatic capacitances of the plurality of conductive fixing plates 4a to 4e, respectively. Further, the arithmetic unit 8 is an electrostatic capacitor that displays the maximum value Y among the plurality of detected electrostatic capacitances and the capacitances of the two conductive fixing plates 4b and 4d adjacent to the conductive fixing plate 4c. The positions of the conductive moving plates 6 are calculated by the adjacent values Z1 and Z2.

Further, by the above calculation, the maximum value Y and the centroid position P of the two adjacent values Z1 and Z2 are set to the position of the conductive moving plate 6.

For example, in the case of Fig. 4, the coordinate values Xa, Xb, Xc, Xd, and Xe of the positions of the respective conductive fixing plates 4a, 4b, 4c, 4d, and 4e are stored in the arithmetic unit 8. Further, the coordinate values Xa, Xb, Xc, Xd, and Xe are distances in the moving direction from the predetermined fixed point O.

The length of the conductive moving plate 6 in the moving direction is longer than the length of one of the conductive fixing plates 4 and the two non-conductive portions 12 adjacent to the conductive fixing plate 4, and thus the level adjusting device 2 The maximum value Y of the electrostatic capacitance detectable by the arithmetic unit 8 is the electrostatic capacitance generated by the conductive fixed plate 4 covered by the conductive moving plate 6.

However, if the conductive moving plate 6 covers 60% of the conductive fixing plate 4c and 40% of the conductive fixing plate 4d, the maximum value Y when the conductive moving plate 4 is covered by the conductive moving plate 6 is not obtained. The electrostatic capacitance generated from the conductive fixing plate 4 covered with the conductive moving plate 6 is small. At this time, the capacitance detected from the conductive fixing plate 4c is set to the maximum value Y.

For example, a case where the conductive movable plate 6 covers 40% of the conductive fixing plate 4b, 100% of the conductive fixing plate 4c, and 60% of the conductive fixing plate 4d will be described.

First, since the conductive fixing plates 4a and 4e are not covered by the conductive moving plate 6, almost no electrostatic capacitance is detected. That is, the capacitance detected from the conductive fixing plates 4a and 4e is smaller than the predetermined threshold F.

Further, the threshold F is a maximum value of the electrostatic capacitance that can be detected from the conductive fixing plate 4 that is not covered by the conductive movable plate 6.

On the contrary, all of the conductive fixing plates 4c of Fig. 4A are covered by the conductive moving plate 6. Therefore, the electrostatic capacitance detected from the conductive fixing plate 4c is the maximum value Y, and becomes 100% of the detectable electrostatic capacitance.

Similarly, the electrostatic capacitance detected from the conductive fixing plate 4b is 40% of the maximum value Y, and the electrostatic capacitance detected from the conductive fixing plate 4d becomes 60% of the maximum value Y.

As described above, the larger the amount of the conductive movable plate 6 covering the conductive fixing plate 4, the more the electrostatic capacitance increases.

Next, the calculation of the arithmetic unit 8 will be described.

(1) First, the arithmetic unit 8 extracts an electrostatic capacitance that is larger than a predetermined threshold F as an extracted value.

For example, in Fig. 4B, the electrostatic capacitances of the conductive fixing plates 4b, 4c, and 4d are extracted.

(2) The calculation device 8 is configured to set the capacitance of the two conductive fixing plates 4b and 4d adjacent to the conductive fixing plate 4c having the maximum value Y in the conductive fixing plate 4 from which the extraction value has been extracted to the adjacent value Z1. And Z2, and the maximum value Y and the adjacent value Z1 are calculated by the maximum value Y and the adjacent values Z1, Z2, and the coordinate values Xb, Xc, and Xd of the positions of the conductive fixing plates 4b, 4c, and 4d in which the values are detected. , Z2's center of gravity position P.

Further, in the case of Fig. 4A, the coordinate value system Xc at the position of the conductive fixing plate 4c of the maximum value Y is detected, and the coordinate value system Xb at the position of the conductive fixing plate 4b adjacent to the value Z1 is detected, and the adjacent position is detected. The coordinate value of the position of the conductive fixing plate 4d of the value Z2 is Xd.

The center of gravity position P is expressed by the following formula 1.

P=(Z1×Xb+Y×Xc+Z2×Xd)/(Z1+Y+Z2)

Furthermore, the position of the center of gravity P obtained by this calculation is set to the position of the conductive moving plate 6.

Here, although the case where the three conductive fixing plates 4 are covered by the conductive moving plate 6 has been described as an example, the conductive moving plate 6 covers only the two conductive fixing plates 4, and the adjacent value Z1 is not obtained. In the case of Z2 or Z2, 0 may be input to the adjacent value Z1 or Z2 for calculation.

Further, when the length of the moving direction of the conductive moving plate 6 is longer than the length of the moving direction of the two conductive fixing plates 4, the maximum value Y has a plurality of calculations.

That is, for example, when the length of the moving direction of the conductive moving plate 6 is longer than the length of the moving direction of the three conductive fixing plates 4, a plurality of maximum values Y (maximum values Y1, Y2, Y3) are obtained.

As an example, a case where the maximum value Y1 is detected from the conductive fixing plate 4b and the maximum value Y2 from the conductive fixing plate 4c and the maximum value Y3 from the conductive fixing plate 4d will be described using FIG. 4A.

At this time, the conductive fixing plates 4b and 4d located at both ends of the conductive fixing plates 4b, 4c, and 4d in which the plurality of maximum values Y1, Y2, and Y3 are detected are respectively adjacent to each other, and the conductive value of the maximum value Y is not detected. The electrostatic capacitances of the fixing plates 4a and 4e are set to adjacent values Z1 and Z2. Then, a plurality of maximum values Y1, Y2, Y3, adjacent values Z1, Z2, and coordinate values Xa, Xb, Xc of the positions of the conductive fixing plates 4a, 4b, 4c, 4d, 4e which detect the values are obtained. Xd and Xe are used to calculate the center of gravity P of the maximum values Y1, Y2, Y3 and the adjacent values Z1, Z2.

As described above, the level adjusting device 2 of the present invention calculates the center-of-gravity position P by calculation, and by setting the center-of-gravity position P to the position of the conductive moving plate 6, even the conductive fixing plate 4 and the conductive moving plate 6 are provided. The length of the moving direction is larger than the width of the resolution of the arithmetic unit 8, and the position of the conductive moving plate 6 can be accurately detected.

That is, for example, in the case where the level adjustment device other than the level adjusting device 2 of the present invention does not perform the calculation, the length of the moving direction of the conductive fixing plate and the conductive moving plate is not set to be relatively If the width of the resolution of the arithmetic device is small, the performance of the level adjusting device cannot be improved.

In other words, when the calculation is not performed, the arithmetic device compares the electrostatic capacitance detected by each of the conductive fixing plates with the threshold value F, and determines that the extracted value has been extracted. A conductive moving plate is present on the conductive fixing plate. However, it is impossible to detect which position of the conductive moving plate is located on the conductive fixing plate from which the extracted value has been extracted. Therefore, in this case, in order to improve the performance of the level adjusting device, it is necessary to set the length of the movement direction of the conductive fixing plate and the conductive moving plate to be smaller than the width of the resolution of the arithmetic unit.

On the other hand, in the level adjusting device 2 of the present invention, the position of the center of gravity P is calculated by the arithmetic unit 8, and the position of the conductive moving plate 6 is detected, so that the conductive fixing plate is not provided. 4 or the length of the moving direction of the conductive moving plate 6 is set to be smaller than the width of the resolution of the arithmetic unit 8, and the performance of the level adjusting device 2 can be sufficiently improved. Further, compared with the case where the conductive fixing plate 4 or the conductive moving plate 6 having a smaller resolution is used, it is possible to design the level adjusting device 2 to be easy to manufacture, and the manufacturing cost can be controlled. Further, in the level adjusting device 2 of the present invention, the conductive fixing plate 4 or the conductive moving plate 6 is large, and the contact area with respect to the substrate 10 or the movable member 19 can be relatively large, so that it is less likely to be damaged.

Further, since the level adjusting device 2 of the present invention uses the electrostatic capacitance to detect the position of the conductive moving plate 6, it is less likely to be affected by temperature changes, humidity changes, and the like.

[Second Embodiment]

Next, the level adjusting device 2 according to the second embodiment of the present invention will be described.

Fig. 5 is an explanatory view of the level adjusting device 2 according to the second embodiment of the present invention.

The level adjusting device 2 of the second embodiment includes a non-conductive coating layer 13 (see FIG. 4A) for covering the surface A of the conductive fixing plate 4, and a pushing member 28 for moving the conductivity The opposite surface C of the plate 6 is pressed with a fixed surface The surface A of the conductive fixing plate 4 imparts potential energy.

The film layer 13 of the second embodiment is a non-conductive thin layer made of a resin, a film, a rubber, or a plastic covering the surface A or the side surface of the conductive fixing plate 4. In the level adjusting device 2 of the second embodiment, the conductive fixing plates 4 are electrically insulated from each other by including the coating layer 13, and the conductive movable plate 6 can be held even when the potential energy is applied to the conductive fixing plate 4. The conductive fixing plate 4 is electrically insulated from the conductive moving plate 6.

In addition, the level adjusting device 2 of the second embodiment is provided with the spring pushing member 28, and the conductive movable plate 6 can be provided with potential energy to the conductive fixing plate 4 with a fixed surface pressure. The guide 16a moves.

At this time, the conductive movable plate 6 slides the opposing surface C in contact with the coating layer 13 . That is, the gap between the upper surface of the envelope layer 13 and the opposing surface C becomes zero.

The poppet member 28 is preferably a thin plate rubber provided between the movable member 19 and the conductive movable plate 6. Alternatively, the poppet member 28 may be a rubber or a spring provided below the substrate 10 and pushing the substrate 10 from below.

In the level adjusting device 2 of the second embodiment, since the surface pressure applied to the surface A by the opposing surface C is fixed by the projecting member 28, the output level of the volume or the amount of light can be stably stabilized. Keep it fixed.

Further, since the force applied from the user's finger to the knob 24 is transmitted to the surface A after being absorbed by the slider member 28, the application to the surface A can be reduced as compared with the case of the non-elastic member 28. Face pressure. Thereby, even if the conductive movable plate 6 is slid in a state where the conductive movable plate 6 contacts the conductive fixed plate 4, friction or deterioration can be more reduced than when the elastic member 28 is not applied, and the level adjustment can be maintained for a long period of time. The function of the device 2.

The configuration and effects of the level adjusting device 2 of the second embodiment are the same as those of the level adjusting device 2 of the first embodiment.

[Third embodiment]

Next, a level adjusting device 2 according to a third embodiment of the present invention will be described.

Fig. 6A is an external explanatory view of the level adjusting device 2 according to the third embodiment of the present invention, and Fig. 6B is a D-D arrow diagram of Fig. 6A.

Fig. 7A is an E-E arrow diagram of Fig. 6B, and Fig. 7B is a F-F arrow diagram of Fig. 6B.

The guide 16 of the level adjusting device 2 of the third embodiment guides the conductive moving plate 6 along the plurality of conductive fixing plates 4 into an arcuate circular arc guide 16b.

As shown in FIGS. 6B and 7A, the circular arc guide 16b has a rotating shaft 32 that is rotatable about an axis perpendicular to the plane B, and a rotating circular plate 34 fixed to the rotating shaft 32, and is rotated. The conductive moving plate 6 is fixed to the side of the circular plate 34 facing the conductive fixing plate 4.

The rotating shaft 32 is perpendicular to the axis of the substrate 10, and rotates integrally with the rotating circular plate 34 and the conductive moving plate 6 in a state in which the substrate 10 is fixed. The rotary shaft 32 is provided with a knob 24 at the front end portion.

The circular plate 34 is a circular plate of an insulator, preferably a bakelite board or an epoxy board.

Further, similarly to the first embodiment, the gap D having a fixed interval between the surface A of the conductive fixing plate 4 and the opposing surface C of the conductive moving plate 6 is preferable.

Alternatively, it may be provided with non-conductivity as in the second embodiment. The film layer 13 covers the surface A of the conductive fixing plate 4, and the spring pushing member 28 applies a potential energy to the surface A of the conductive fixing plate 4 with the fixing surface pressure of the facing surface C of the conductive moving plate 6. The spring pushing member 28 is preferably an elastic body such as rubber or a spring provided between the rotating circular plate 34 and the conductive moving plate 6.

Further, the position holding mechanism 26 of the third embodiment is preferably an elastic member, a resin-processed part, or a metal plate that is in contact with the outer peripheral surface of the rotating shaft 32, but may be another mechanism.

As shown in Fig. 7B, the plurality of conductive fixing plates 4 of the third embodiment are positioned in an arc shape centering on the axis of the plane B and forming a circular arc shape in the circumferential direction.

Further, the non-conductive portion 12 of the third embodiment is positioned in an arc shape centering on the axis. The non-conductive portion 12 of the third embodiment is preferably a sector shape in which an arc is formed in the circumferential direction. Alternatively, the two sides of the non-conductive portion 12 of the third embodiment adjacent to the conductive fixing plates 4 adjacent to each other may be parallel.

The conductive movable plate 6 of the third embodiment preferably has a sector shape centering on the rotating shaft 32. However, the present invention is not limited thereto, and the conductive movable plate 6 of the third embodiment may have a rectangular shape or a circular shape.

In the level adjusting device 2 of the present embodiment, since the conductive movable plate 6 is rotated by the circular guide 16b to the surface A of the conductive fixing plate 4 which is positioned in an arc shape, the knob is provided. 24 Rotate multiple times to adjust the output level of volume or light level from 0 to infinity.

The configuration and effects of the level adjusting device 2 of the third embodiment are the same as those of the level adjusting device 2 of the first embodiment or the second embodiment.

[Fourth embodiment]

Next, a level adjusting device 2 according to a fourth embodiment of the present invention will be described.

8A is an explanatory view of the appearance of the level adjusting device 2 according to the fourth embodiment of the present invention, and FIG. 8B is an explanatory view of the substrate 10 of the level adjusting device 2 according to the fourth embodiment of the present invention.

In the level adjusting device 2 of the fourth embodiment, a plurality of conductive fixing plates 4 are formed on one substrate 10. As shown in Figs. 8A and 8B, the conductive fixing plate 4 may be combined with the variator type of the first embodiment and the dial type of the third embodiment. By forming in this manner, a plurality of conductive fixing plates 4 can be formed in advance on the substrate 10, and the slits 30a and the guide members 16 are disposed on the body 30 only at necessary portions as needed, and by the substrate 10 By providing the arithmetic unit 8, the type and number of the conductive fixing plates 4 can be changed in accordance with the user's preference.

Further, the arithmetic unit 8 must have one for each of the conductive fixing plates 4.

In the level adjusting device 2 of the present embodiment, the plurality of conductive fixing plates 4 are formed on one substrate 10, and the level adjusting device 2 can be formed in comparison with the case where the substrate is formed one by one according to the user's request. The manufacturing cost is controlled to be low.

The configuration and effects of the level adjusting device 2 of the fourth embodiment are the same as those of the level adjusting device 2 of the first embodiment or the second embodiment.

According to the electrostatic capacitance type level adjusting device 2 of the present invention described above, the guide member 16 causes the opposing surface C of the conductive moving plate 6 to approach or impart potential energy to the surface A of the plurality of conductive fixing plates 4. Guided along a plurality of conductive fixing plates 4, and the arithmetic device 8 calculates the position of the conductive moving plate 6 based on the electrostatic capacitance generated between the conductive fixing plate 4 and the conductive moving plate 6, and An electric signal corresponding to the position is output, and thus the conductive moving plate 6 or the conductive fixing plate 4 is less worn or deteriorated. Therefore, the function of the capacitance type level adjusting device 2 can be stably maintained for a long period of time.

Further, the electrostatic capacitance type level adjusting device 2 of the present invention detects the position of the conductive moving plate 6 based on the electrostatic capacitance generated between the conductive fixing plate 4 and the conductive moving plate 6, and is therefore less susceptible to temperature. The effects of changes and changes in humidity are more stable.

Furthermore, since the electrostatic capacitance type level adjusting device 2 of the present invention is provided with the conductive moving plate 6 by manual or automatic operation along a plurality of conductive fixing plates 4, the position is maintained during non-operation. The knob 24, therefore, even if the user interrupts the operation by releasing the finger from the knob 24 during manual operation, or interrupts the operation from the instruction button for automatically controlling the knob 24 or the mouse to release the finger during the automatic operation, the operation can be interrupted. When the finger is released, the operation is resumed at the same position, so the operability is good.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit and scope of the invention.

6‧‧‧Electrically conductive board

8‧‧‧ arithmetic device

10‧‧‧Substrate

16‧‧‧Guide

16a‧‧‧Line guides

18a‧‧‧ parallel bars

19‧‧‧ movable components

20a‧‧‧through hole

24‧‧‧ knob

26‧‧‧Location Maintenance Agency

30‧‧‧Ontology

30b‧‧‧ openings

A‧‧‧ surface

B‧‧‧ Plane

C‧‧‧ opposite

D‧‧‧ gap

E‧‧‧above

Claims (13)

An electrostatic capacitance level adjusting device characterized by comprising: a plurality of conductive fixing plates, the surfaces are located on the same plane, electrically insulated from each other, and positioned at a fixed interval along the surface; a single conductive moving plate having a facing surface opposite to the plane; a guide such that the opposing surface of the conductive moving plate approaches or imparts potential energy to the surface of the plurality of conductive fixing plates along the plurality of conductive fixing plates And an arithmetic unit that calculates a position of the conductive moving plate based on an electrostatic capacitance generated between the conductive fixing plate and the conductive moving plate, and outputs an electric signal corresponding to the position; and further includes a knob The conductive moving plate can be operated manually or automatically along a plurality of electrically conductive fixing plates and maintained in position when not in operation. The electrostatic capacitance type level adjusting device according to claim 1, wherein the guide member is a linear guide that guides the conductive moving plate along the plurality of conductive fixing plates in a straight line; The workpiece has: a pair of parallel bars parallel to the surface and spaced apart from each other by a fixed interval; and a non-conductive movable member having a pair of through holes through which the parallel bars pass, and which are linearly arranged along a pair of parallel bars Guided; and a conductive moving plate is fixed to the side of the movable member opposite to the conductive fixing plate; and further has a position holding mechanism for preventing the movement of the knob when the knob is not operated. The electrostatic capacitance level adjusting device according to claim 1, wherein The guide member is a linear guide that guides the conductive moving plate along the plurality of conductive fixing plates in a straight line; the linear guide has a flat plate extending in parallel with respect to the surface; and non-conductive The movable member has a through hole through which the flat plate penetrates, and is guided linearly along the flat plate; a conductive moving plate is fixed to a side of the movable member facing the conductive fixing plate; and further has a position maintaining mechanism. The movement of the knob is prevented when the aforementioned knob is not operated. The electrostatic capacitance type level adjusting device according to claim 1, wherein the guide member is a circular arc guide that guides the conductive moving plate along the plurality of conductive fixing plates in an arc shape. a plurality of conductive fixing plates are positioned in an arc shape centering on an axis extending perpendicular to the plane, and forming a circular arc shape in a circumferential direction; the arc guiding member has a rotating shaft, which can be The shaft is rotated centrally; and the rotating circular plate is fixed to the rotating shaft; the conductive moving plate is fixed on a side opposite to the conductive fixing plate of the rotating circular plate; and further has a position maintaining mechanism, wherein the knob is not Prevent movement of the knob during operation. The electrostatic capacitance type level adjusting device according to claim 1, wherein the plurality of conductive fixing plates are disposed on the surface of the flat substrate and have a fixed interval between the adjacent conductive fixing plates. Conductive part. An electrostatic capacitance type level adjusting device according to claim 5, wherein The length of the conductive moving plate in the moving direction is set to be longer than the total length of one of the conductive fixing plates and the two non-conductive portions adjacent to the conductive fixing plate. The electrostatic capacitance type level adjusting device according to claim 6, wherein the computing device detects the electrostatic capacitance of the plurality of conductive fixing plates, respectively, and displays the largest of the plurality of detected electrostatic capacitances. The position of the conductive moving plate is calculated by the adjacent value of the value of the conductive fixing plate and the capacitance of the two conductive fixing plates adjacent to the conductive fixing plate. The electrostatic capacitance type level adjusting device according to claim 7, wherein the position of the center of gravity of the maximum value and the two adjacent values is the position of the conductive moving plate by the calculation. The electrostatic capacitance type level adjusting device according to claim 7, wherein the computing device is disposed on a substrate; the substrate further includes a wiring circuit for electrically electrically connecting the plurality of conductive fixing plates and the computing device Sexual connection. The electrostatic capacitance type level adjusting device according to claim 1, wherein the surface of the conductive fixing plate and the opposing surface of the conductive moving plate have a gap therebetween. The electrostatic capacitance type level adjusting device according to claim 1, comprising: a non-conductive coating layer covering the surface of the conductive fixing plate; and a pushing member for the conductive moving plate The opposing surface is pressed by the fixed surface to the aforementioned surface of the conductive fixing plate to impart potential energy; The conductive moving plate slides the opposing surface in contact with the coating layer. The electrostatic capacitance type level adjusting device according to claim 2, wherein the position maintaining mechanism is an elastic member, a resin processed component, or a metal plate that is inserted between the inner surface of the through hole and the parallel bar. The electrostatic capacitance type level adjusting device according to claim 4, wherein the position maintaining mechanism is an elastic member, a resin processed component, or a metal plate that is in contact with the outer peripheral surface of the rotating shaft.