JP2013037782A - Rotary switch with rotation direction determination mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary switch capable of determining the rotation direction of an operation shaft reliably with high accuracy by a simplified configuration.SOLUTION: The rotary switch consists of at least three fixed contacts 3 arranged along a circular arc centering on an operation shaft 5 at an equal interval of a predetermined angle α, and a movable contact having a plurality of radially protruding contact pieces 4 and being rotated by the operation shaft 5 while holding the equal interval of the predetermined angle α. The rotary switch is configured so that any one of the contact pieces 4 of the movable contact is always connected with any one of the fixed contacts 3. From the arrangement of the address of the fixed contact the potential of which has been changed from a potential H to L by the potential H applied to the movable contact by rotation of the operation shaft, a rotation direction determination means controlled by a controller 6 determines the rotation direction of the rotary switch.

Description

  The present invention relates to a rotational direction discriminating mechanism of a rotary switch, and more particularly to a rotary switch with a rotational direction discriminating mechanism capable of discriminating the rotational direction even if the rotary switch has only three fixed contacts.

  A left-right rotation detection method such as a two-phase incremental method pulse encoder is provided with two slit rows whose phases are shifted from each other on the rotating disk, and a photosensor in which the slits of the two slit rows are fixed. Detected and compared as A-phase and B-phase pulses whose phases are shifted by 90 ° (or ½ wavelength) from each other. If the B-phase signal is low at the rise of the A-phase signal, it is counted up. If the B phase signal is at a high level, the rotation direction is detected by counting down.

Many rotary switches that can detect the rotational direction have been disclosed by applying the detection method of the pulse encoder.
Patent Document 1 is a representative example, and as shown in FIG. 8, a sliding plate 116 (119) having a plurality of missing portions 118 provided at a predetermined interval in the circumferential direction on a rotatable code plate 103. In the same manner, a plurality of movable contacts 115 provided at predetermined intervals in the circumferential direction and first to third slider pieces 104a, 104b, 104c that can be contacted with and separated from these movable contacts are arranged. Has been.

  In Patent Document 1, when the code plate 103 rotates around the fitting hole 117, the first slider piece 104a always slides on the common electrode 115a during the rotation, but the second sliding member The child piece 104b comes into contact with the first comb teeth 115b from the surface of the substrate (not shown) constituting the base of the code plate, and further repeats contact between the surface of the substrate and the first comb teeth 115b. To go. Similarly, the third slider piece 104c also repeats contact with the surface of the substrate and the first comb teeth 115b.

  When the second slider piece 104b contacts the first comb tooth portion 115b, the first and second slider pieces 104a and 104b are electrically connected via the common electrode 115a and the first comb tooth portion 115b. Therefore, a pulse for the A phase signal is detected from the terminals connected to both the slider pieces 104a and 104b.

  When the third slider piece 104c comes into contact with the first comb tooth portion 115b, the first and third slider pieces 104a and 104c are connected via the common electrode 115a and the first comb tooth portion 115b. In order to conduct, B-phase signal pulses are detected from the terminals connected to the slider pieces 104a and 104c.

  Since which of the second slider piece 104b and the third slider piece 104c comes into contact with the first comb tooth portion 115b first depends on the rotation direction of the code plate 103, the A-phase signal The rotation direction of the code plate 103 is detected by determining the rising pulse of the B-phase signal, and the rotation amount of the code plate 103 is detected by counting the number of pulses.

Japanese Utility Model Publication No. 5-50638

  However, in Patent Document 1, the plurality of movable contacts 115 provided on the code plate 103 for detecting the rotational direction of the rotary switch has a spacing accuracy of 15 ° in the rotational direction as shown in FIG. The required 24 comb teeth are required, and the 24 comb teeth and the slider pieces 104a, 104b, 104c as fixed contacts are arranged in a direction perpendicular to the operation axis, and In order to maintain the mutual distance, the diameter of the rotary switch becomes large, and the rising accuracy of the A-phase signal and the B-phase signal is sufficient depending on the rotational speed of the operation shaft from the accuracy of the distance between the slider pieces 104b and 104c. There were problems such as causing malfunctions.

  The present inventor solved this problem by the following means as a result of diligent research in view of the present state of the background art.

(1) A fixed contact connection terminal having at least three fixed contacts arranged at equal intervals at a predetermined angle α along an arc centered on an operation axis rotated by an operator's operation; The operation shaft is rotated at an equal interval of the predetermined angle α, and when it is rotated, it is radially centered on the operation shaft so as to be always connected to any one of the fixed contacts. A rotary switch having a movable contact connecting terminal having a movable contact composed of a plurality of contact pieces projecting from
A rotation direction discriminating means that is connected to the movable contact connection terminal and each fixed contact connection terminal of the rotary switch and discriminates the rotation direction of the operation shaft under the control of a control device;
A first potential L (or H) is applied to the movable contact connection terminal, and a second potential H (or L) is applied to each fixed contact connection terminal connected to the control device via a resistor. The address of the fixed contact connecting terminal whose address is given to the connection terminal of each fixed contact and the potential is changed to the first potential (or the second potential) by the rotation of the operation shaft. A rotary switch with a rotational direction discriminating mechanism, wherein the rotational direction discriminating unit discriminates the rotational direction of the rotary switch based on the arrangement of

(2) In the preceding paragraph (1),
The rotary switch is provided with a switching moderation mechanism that interlocks with the rotation of the operation shaft, and when the rotary switch is rotated at a predetermined angle α of the fixed contact with an equal interval, the operator A rotary switch with a rotation direction discriminating mechanism characterized by giving a click feeling to the lens.

(3) In the preceding paragraph (1) or (2),
The controller is
Control target switching means for assigning an address to each of the control target positions such as a plurality of circuits or circuit constants selected by the rotation of the rotary switch, and detecting the rotation of the rotary switch and sequentially switching the control target position When,
Display means for displaying the control target position;
Display switching means for switching a display indicating a corresponding control object in conjunction with an address of the control object position switched by the control object switching means;
A memory for storing an address of the control target position;
A rotary switch with a turning direction discriminating mechanism.

(4) In the preceding paragraph (3),
The control object switching means included in the control device includes:
When the operation shaft of the rotary switch is turned counterclockwise, the control target is sequentially moved from the control target position selected immediately before the operation to the control target position in the direction in which the address is decremented (or incremented). switching,
When the operating shaft of the rotary switch is rotated clockwise,
A rotary switch with a rotation direction discriminating mechanism, wherein the control object is switched from a control object position selected immediately before the operation to a control object position in a direction in which an address is incremented (or decremented).

(5) In the preceding paragraph (3) or (4),
The controller is
The number of rotations of the rotary switch is counted, the address of the control target position is added corresponding to the number of counterclockwise or clockwise rotations, and the number of control target positions can be arbitrarily set. Rotary switch with rotating direction discriminating mechanism.

(6) In the preceding paragraph (5),
When the rotation number of the rotary switch is counted by the control device, and the address of the control target position is added corresponding to the number of clockwise or counterclockwise rotations,
The display switching means enables position display such as continuous light / dark display, arbitrary position display corresponding to the address, or numerical display in conjunction with the address of the control target position. Rotary switch with direction discrimination mechanism.

  (7) The control selected immediately before the power is turned off when the device equipped with the rotary switch with the rotation direction discriminating mechanism according to any one of (1) to (6) is turned off. A rotary switch with a rotational direction discriminating mechanism, wherein an address of a target position is stored in the memory.

(8) In any one of the preceding items (1) to (6),
At least three fixed contacts arranged at equal intervals at a predetermined angle α along an arc centered on the operation axis, and rotated with the operation shaft at equal intervals of the predetermined angle α. And a movable contact connection terminal comprising a plurality of contact pieces radially projecting about the operation shaft so as to be always connected to any one of the fixed contact connection terminals when rotated. A plurality of rotary switches composed of
Connection terminals having the same address of the fixed contact connection terminals of the plurality of rotary switches are connected in parallel, and each of the connection terminals is given the second potential H (or L) via a resistor. And
The applied potential information is input to the control device,
The movable contact connection terminal of each rotary switch is connected to the control device via a diode, and at the same time, an address is given to each of the movable contact connection terminals.
By making the diode conductive, the control device detects which address of the movable contact connection terminal the rotary switch corresponding to the rotary switch is rotated, and the rotation direction of the operation shaft corresponding to each detected rotary switch Is determined by the rotation direction determining means, and based on the determined rotation direction, switching of the control target position in the control target group in charge of the rotary switch and display switching of the selected control target position are performed. A rotary switch with a rotation direction discriminating mechanism.

According to the present invention, the following effects are exhibited.
1. According to the invention of claim 1 of the present invention,
At least three fixed contact connection terminals arranged at equal intervals at a predetermined angle α on an arc centered on an operation axis rotated by an operator, and the predetermined angle α interval by the operation axis. A movable contact comprising a plurality of contact pieces radially projecting about an operation shaft so as to be held and rotated, and to be always connected to any one of the fixed contact connection terminals when rotated. A rotary switch composed of a connection terminal, a rotation direction determination means connected to the movable contact connection terminal and each fixed contact connection terminal of the rotary switch, and for determining the rotation direction of the operation shaft by the control of the control device; Because it has
There is no need to provide the number of fixed contacts of the rotary switch according to the number of objects to be controlled as in the prior art, and at least three fixed contact connection terminals are always connected to any one of the fixed contact connection terminals. The required rotary switch can be manufactured with a simple structure that only forms the required number of contact pieces of the movable contact connection terminal, and a low-cost rotary switch with a rotational direction discriminating mechanism can be constructed. .

  A first potential L (Low Level) (or a potential H (High Level)) is applied to the movable contact connection terminal, and the connection terminals of the fixed contacts are connected via resistors. A second potential H (or L) is applied, each address is given to each fixed contact connection terminal, and the potential changes to the first potential: L (or H) by the rotation of the operation shaft. Since the rotational direction of the rotary switch can be determined by the rotational direction determining means from the address arrangement of the fixed contact connection terminals, as in the device described in Patent Document 1 shown in the background art, In order to detect the rotation direction, if the B phase signal is low level at the rise of the A phase signal, it is counted up, and conversely if the B phase signal is high level, it is counted down. This eliminates the need for complicated and precise mechanisms, and enables the rotation direction to be determined with a simple structure rotary switch. Since the rotation direction is determined at a low cost by a computer, it can be used for chattering, rotation speed, etc. A rotary switch with a rotation direction discriminating mechanism that does not cause malfunction can be constructed.

  Furthermore, if the number of the fixed contacts is three, only a total of four connection lines from the connection terminals of the three fixed contacts and the connection terminals of the movable contacts can be connected to the control device in the rotational direction of the operation shaft. Since the number of wirings can be significantly reduced and a rotary switch is incorporated in a printed wiring board, etc., it has conventionally been necessary to use a double-sided wiring board or a multiple wiring board. Since it can be manufactured with a substrate, cost can be easily reduced.

2. According to the invention of claim 2 of the present invention,
In addition to the effect of the first aspect, the rotary switch is provided with a switching moderation mechanism that is interlocked with the rotation of the operation shaft, and the rotary switch rotates at a predetermined angle α of the fixed contact. When it is moved, the click feeling means by the switching moderation mechanism is provided, so that the linkage between the switching of the contact and the click feeling to the operator can be surely obtained. Note that this type of switching moderation mechanism (click feeling generation mechanism) may have a known structure as disclosed in Patent Document 1 described above.

3. According to the invention of claim 3 of the present invention,
In addition to the effects of Claims 1 and 2, the control device assigns an address to each control target position such as a plurality of circuits or circuit constants selected by the rotation of the rotary switch, and the rotation of the rotary switch. Control object switching means for detecting movement and sequentially switching the control object position; display means for displaying the control object position; and display in conjunction with the address of the control object position switched by the control object switching means. Since the display switching means for switching and the display means for displaying the control target position switched by the control target switching means, the control target position such as a circuit selected by the operation of the rotary switch or a circuit constant is provided. It is displayed sequentially and can be quickly and accurately switched to the control target position to be selected.

  In addition, since the memory for storing the address of the control target position is provided, even if the rotary switch is rotated when the power of the device equipped with the rotary switch with the rotation direction determination mechanism is turned off, The address of the control target position selected immediately before the power is turned off is stored, and the selected control target position can be reproduced by reading the address of the control target position from the memory when the apparatus is restarted.

4). According to the invention of claim 4 of the present invention,
In addition to the effect of claim 3, the control device comprises:
When the operation axis of the rotary switch is rotated counterclockwise, the control object switching means moves the control object position from the control object position selected immediately before the operation to the control object position in the direction in which the address is decremented (or incremented). Switch the control target sequentially,
When the operation axis of the rotary switch is rotated clockwise, the control object switching means controls the control object position in a direction in which the address is incremented (or decremented) from the control object position selected immediately before the operation. Since the target can be switched,
Even if the operation shaft of the rotary switch is rotated counterclockwise or clockwise, the target position to be controlled is instantaneously switched, and the position is displayed on the display means in conjunction with the switching operation. Therefore, the switching operation can be advanced efficiently.

5. According to the invention of claim 5 of the present invention,
In addition to the effects of claims 3 and 4, the control device counts the number of rotations of the rotary switch and adds an address of the control target position corresponding to the number of clockwise or counterclockwise rotations. As a result, the number of positions to be controlled can be set arbitrarily, and therefore extremely fine control is possible. For example, volume adjustment and sound quality adjustment of the audio device can be controlled with a feel equivalent to the variable operation of the variable resistor.

6). According to the invention of claim 6 of the present invention,
In addition to the effect of claim 5, when the rotation number of the rotary switch is counted by the control device, and the address of the control target position is added corresponding to the number of counterclockwise rotations or clockwise rotations,
The display switching means enables position display such as continuous light and dark display, arbitrary position display corresponding to the address, or numerical display in conjunction with the address of the control target position. Even if a rotation operation that exceeds the rotation is performed, the position to be controlled can be easily visually confirmed.

7). According to the invention of claim 7 of the present invention,
In addition to the effects of claims 1 to 6, in a device equipped with the rotary switch with a rotation direction discriminating mechanism, when the power of the device is turned off, the position of the control target selected immediately before the power is turned off. Since the address is stored in the memory, even if the operation axis of the rotary switch that switches the position to be controlled is accidentally rotated when the device is turned off, the device is turned on and restarted immediately before the device is turned off. Since the apparatus operates in a state where the control target position of the address stored in is selected and the position number is displayed by the display means, the work can be efficiently performed.

  In addition, the switching direction of the control target position such as the circuit or the circuit constant is all determined by the control device at the same time as the right / left rotation direction is instantaneously determined. Regardless of the case, the target position can be accurately selected without malfunction.

8). According to the invention of claim 8 of the present invention,
In addition to the effects of claims 3 to 7, at least three fixed contacts disposed at equal intervals of a predetermined angle α along an arc centered on the operation axis, and the predetermined angle by the operation axis From a plurality of contact pieces radially projecting about the operation shaft so that the rotation is performed while maintaining an equal interval of α, and the rotation is always connected to any one of the fixed contacts. A plurality of rotary switches configured with movable contact connection terminals to be compatible with a plurality of types of control targets,
Connection terminals having the same address of the fixed contact connection terminals of the plurality of rotary switches are connected in parallel, and a potential H (or L) is applied to each connection terminal via a resistor, and the control device Navel potential information is inputted, and the movable contact connection terminal of each rotary switch is connected to the control device through a diode, and at the same time, an address is given to each.
By turning on the diode, the control device detects which address of the rotary switch is rotated, and for each detected rotary switch, the rotation direction of the operation shaft is determined by the rotation direction determination means. Since it is configured to perform switching of the control target position in the control target group in charge of the rotary switch and display switching of the selected control target position based on the rotation direction,
The rotation direction of the operation shaft of the plurality of rotary switches is determined, and the switching of the control target group and the display of the control target position are controlled for each rotary switch based on each rotation direction. Can do.

  And since the connection terminals having the same address of the fixed contacts of the plurality of rotary switches are connected in parallel, the wiring for connecting the fixed contacts of the rotary switch to the control device is provided with the plurality of rotary switches. The number of rotary switches may be the same as the one with the largest number of fixed contacts, and it is only necessary to connect the wiring from the connection terminal of each movable contact to the circuit of the control device. The circuit can be simplified and the cost can be reduced.

  In addition, the switching operation of each control target group by the plurality of rotary switches can be performed by sharing the rotation direction discriminating means, the control target switching means, and the display switching means of one control device, and each rotary switch is controlled. It is not necessary to provide a device, and the circuit can be simplified and the cost can be reduced.

The block diagram which shows the structure of the rotary switch with a rotation direction discrimination mechanism explaining Example 1 of this invention. The flowchart explaining operation | movement of the rotary switch with a rotation direction discrimination | determination mechanism in Example 1 of this invention. Operation | movement explanatory drawing when the fixed contact of the rotary switch with a rotation direction discrimination mechanism in Example 1 of this invention is three pieces. Explanatory drawing of operation | movement when the fixed contact of the rotary switch with a rotation direction discrimination mechanism in Example 1 of this invention is four pieces. The block diagram of the rotation direction discrimination mechanism in the structure which uses two or more rotary switches with a rotation direction discrimination mechanism explaining Example 2 of this invention. The block diagram of the rotation direction discrimination mechanism which used together the some endless type | mold rotary switch explaining Example 3 of this invention, the rotation range control type | mold rotary switch, etc. FIG. The block diagram of the rotation direction discrimination | determination mechanism which connected the some endless type | mold rotary switch explaining Example 4 of this invention, the some rotation range control-type rotary switch, etc. FIG. Explanatory drawing of the prior art example of a rotary switch with a rotation direction discrimination mechanism.

DESCRIPTION OF EMBODIMENTS Embodiments for carrying out the present invention will be described in detail with reference to the drawings of the embodiments.
1 to 7, 1 is a rotary switch with a rotation direction discriminating mechanism, 2 is a rotary switch, 3 is a fixed contact, A, B, and C are connection terminals of a fixed contact, 4 is a contact piece of a movable contact, Operation shaft, 6 is a control device (computer device), 7 is a memory, 8 is a power supply monitoring means, 9 is a display means, 10 is a rotation direction discriminating means, 10 'is a rotation range regulating type rotary switch, and an interlocking push Switch switching determination means, 11 is a display switching means, 12 is a calculation means, 13 is a control object switching means, 14 is a control object switching position group, 15 is a diode, 16, 16a and 16c are rotary range regulation type rotary switches, 17, 17 a, 17 b are interlocking push switches, 18 is a control target (No. 0 to N), 19, 19 ′, 19 ″, 19 a ′, 19 b ′, 19 c ′ are display means (No. 0 to N), 20, 2 a, 20b, 20c are control target groups of the rotary range regulation type rotary switch, 21 is an interlocking push switch control target group, G, G ′, G ″ are connection terminals of movable contacts, K1 to Kn are control target positions, P1 to P9 are display lamps, and S11 to S21 are steps.

  FIG. 1 is a block diagram showing the configuration of a rotary switch 1 with a turning direction discriminating mechanism for explaining a first embodiment of the present invention. In the rotary switch 2 in the present embodiment, three fixed contacts 3 are arranged at an angular interval of 30 ° along an arc centered on the operation shaft 5, and the contact piece 4 of the movable contact is an angular interval of 90 °. 4 pieces projecting radially about the operation shaft 5, and one piece of the contact piece 4 of the movable contact is always the fixed contact even if the operation shaft 5 is rotated clockwise or counterclockwise. Is connected with either.

  The rotary switch 1 with a rotation direction discriminating mechanism according to this embodiment is composed of a computer device to which the rotary switch 2 and fixed contact connection terminals A, B, and C connected to the fixed contacts of the rotary switch 2 are connected. Power supply monitoring means for monitoring on / off of the power supply of the device equipped with the control device 6, the memory 7 for storing the address of the position number assigned to the position to be controlled, and the rotary switch with the rotational direction discriminating mechanism 8 and display means 9 (in this embodiment, display lamps P1 to P9) for displaying which of the control target positions is currently selected.

  The control device 6 includes calculation means 12 (microcomputer: constituted by a microcomputer) as hardware for determining the rotation direction of the operation shaft of the rotary switch 2, rotation direction determination means 10, and the rotary switch 2. Switching of a plurality of circuits selected by the control target switching position group 14 (positions K1 to K9 in the present embodiment) to be controlled such as circuit constants or the like, and control target switching means 13 for controlling the control target The display switching means 11 that controls the display lamp positions (in this case, the display lamps P1 to P9) corresponding to the number of the switching position groups 14 and the control target positions, and the software in the calculation means 12 It consists of

  The connection terminal G of the movable contact of the rotary switch 2 is connected to the ground (GND (L) / ground) of the control device 6 and is always at the potential L (Low Level), and each of the fixed terminals connected to the control device 6 is connected. An address is assigned to each of the connection terminals A, B, and C of the contact 3, and a potential H (High Level) is applied from the power supply VCC via a resistor.

  The connection terminals A, B, and C of the fixed contacts 3 are monitored for potential changes by the calculation means 12 and connected to the movable contact piece 4 by the rotation of the operation shaft 5 of the rotary switch 2 so that the potential is L. If the address arrangement of the connection terminals of the fixed contact changed to A → B, B → C, C → A is counterclockwise (counterclockwise) and vice versa, A → C, C → B, B → A If so, it is discriminated by the clockwise (clockwise) rotation and the rotation direction discriminating means 10.

  The details of the operation of the rotary switch 1 with a rotation direction discriminating mechanism of the present invention will be described based on the configuration diagram of FIG. 1 and the flowchart shown as an embodiment in FIG.

  The operation of the rotary switch 1 with the rotation direction discriminating mechanism is “Start” when power is supplied to the rotary switch 2.

After “Start”, first, in step S11, the address of the control target position that was selected at the time of the previous power-off and stored in the memory 7 is read from the memory 7 into the calculation means 12, and accordingly the display lamp P1 of the display means 9 is displayed. Among the .about.P9, the display lamp corresponding to the control target position whose address is read by the computing means 12 is turned on.
The computing means 12 is provided with a down counter and a timer.

  Next, as step S12, the address of the connection terminal of the fixed contact 3 whose potential is L when the power is turned on among the connection terminals A, B and C of the three fixed contacts of the rotary switch 2 is read into the arithmetic means 12.

  In the subsequent step S13, the address of the connection terminal of each fixed contact 3 of the rotary switch 2, the address of the position number assigned to each control target position of the control target position group 14 and the like for switching timing when reading to the arithmetic means 12 are used. As described above, the “counter setting” of the down counter is performed for the timer in which the count frequency decreases.

  The time interval of the timer is set to a value of about 1 msec to 10 msec (2 msec in this example) so that it can follow the rapid rotation of the rotary switch 2.

  The next step S14 is a step of checking whether the power to the rotary switch 2 is cut off through the power supply monitoring means 8 for monitoring the state of the power supply by the calculation means 12. ”, The process proceeds to the next step S15.

  If "Power off?" Is "Yes", the process proceeds to step S21, the address of the position number of the control target position selected at that time is written in the memory 7, and the operation is terminated.

  Step S15 is a step for checking whether or not the operation of the down counter with the previously set timer has been completed. If “Timer end?” Is “Yes”, the process proceeds to Step S16 “Timer setting”. If “No”, the process returns to step S14, and steps S14 and S15 are repeated.

  In step S16 “timer setting”, it is confirmed in step S15 that the operation of the timer has ended, so that the timer is reset at the above-described time.

  Step S17 is a step in which the rotational direction discriminating means 10 detects whether or not the potentials of the connection terminals A, B, and C of the three fixed contacts 3 of the rotary switch 2 have changed, and if “Yes”, The process proceeds to step S18, and if “No”, the process returns to step S14.

  Step S18 determines whether the rotation direction of the rotary switch 2 is counterclockwise (counterclockwise) or clockwise (clockwise) depending on the arrangement of addresses assigned to the connection terminals of the fixed contacts 3 whose potential has changed. In this step, the rotation direction discriminating means 10 discriminates.

  The movement direction of the connection terminal of the fixed terminal 3 whose potential has changed to L is “Is the change in potential of the connection terminal A → B, B → C, C → A counterclockwise (counterclockwise)?” If "Yes", the process proceeds to step S19, and if "No", it is determined to be clockwise (clockwise) and the process proceeds to step S20.

  In step S19, when the operation shaft 5 of the rotary switch 2 is rotated counterclockwise (counterclockwise), the position number is decremented from the position number of the control target position selected immediately before. The control target position is switched in the direction by the control of the control target switching means 13.

  For example, if the position number of the control target position selected immediately before is K1, the control target position is the control target position from position number K1 to Kn (K9 in this embodiment) by operating the rotary switch. After that, the position number is changed in the direction of decreasing sequentially (K9 → K8 → K7...). At the same time, the display means 9 is switched to the one indicating the selected control target position.

  When the switching of the control target position in the control target position group 14 and the switching of the display means 9 are completed, the process returns to step S14 and is in a standby state until the rotary switch is next rotated.

  If it is determined in step S18 that the counterclockwise direction (counterclockwise) is “No”, the process proceeds to step S20.

  In step S20, the position number is increased (incremented) from the position number of the control target position selected immediately before in response to the operation of rotating the operation shaft 5 of the rotary switch 2 clockwise (clockwise). ), The control target position is switched by the control of the control target switching means 13.

  For example, if the position number of the control target position selected immediately before is Kn (K9 in this embodiment), the control target position is controlled from the position number Kn to K1 by operating the rotary switch. After that, the position number is changed in the direction of increasing sequentially (K9 → K1 → K2 → K3 →...). At the same time, the display means 9 is switched to the one indicating the selected control target position.

  When the switching of the control target position in the control target position group 14 and the switching of the display means 9 are completed, the process returns to step S14 and is in a standby state until the rotary switch is next rotated.

  The operation of the rotary switch 1 with the rotation direction discriminating function is terminated by turning off the power supply to the rotary switch 2. When the power is turned off, the computing means 12 turns the power monitoring means 8 on in step S14. Then, “Yes” is determined for “Power off?” And the process proceeds to Step 21.

  In step 21, the power monitoring means 8 detects that the power switch is turned off, and writes the address of the position number of the control target position selected immediately before the power is turned off to the memory 7 by the computing means 12. After a predetermined time, the power is completely turned off to “END”.

  In the rotary switch 2 of the first embodiment, three fixed contacts 3 are arranged at intervals of 30 ° along an arc centered on the operation shaft 5, and the contact piece 4 of the movable contact has an angle of 90 °. In an example in which four contact points project radially from the operation shaft 5 at intervals, the number of control target positions included in the control target position group 14 switched by the control target switching means 13 is 12 or more ( In this example, K1 to K9). Specific variations of the arrangement will be described with reference to FIGS.

In FIG. 3, in the rotary switch 2 in which three fixed contacts 3 are arranged at predetermined angular intervals along an arc centering on the operation shaft 5, the angular intervals of the fixed contacts 3 and the contact pieces 4 of the movable contacts are shown. An example of what is relatively easy to manufacture is shown below.
(A)-(f) is a case where the number of the contact pieces 4 of a movable contact is changed by the fixed contact 3 at an angular interval of 15 degrees-60 degrees.
(G)-(i) is a case where the number of the contact pieces 4 of a movable contact is changed by the fixed contact 3 at an angular interval of 120 degrees.

In either case, when the operating shaft 5 is rotated, one of the movable contact pieces is always in contact with the fixed contact. Further, the number of control target switching position groups 14 can be arbitrarily set. That is,
FIG. 3 (a) shows that the fixed contact interval is 15 ° and the movable contact pieces are 8 pieces at 45 °.
FIG. 3 (b) shows a case where the fixed contact interval is 20 ° and the movable contact pieces are 6 pieces at 60 °.
FIG. 3 (c) shows that the fixed contact interval is 24 °, and the movable contact pieces are 5 pieces at 72 °.
FIG. 3 (d) shows a case where the fixed contact interval is 30 ° and the contact pieces of the movable contact are 90 ° and four pieces,
FIG. 3 (e) shows a case where the fixed contact interval is 40 °, and the contact pieces of the movable contacts are three at 120 °.
FIG. 3 (f) shows that the fixed contact interval is 60 ° and the movable contact pieces are two 180 °,
FIG. 3 (g) shows a fixed contact interval of 120 ° and four contact pieces of movable contacts at 90 °,
In FIG. 3 (h), the fixed contact interval is 120 °, and the contact pieces of the movable contact are two at 180 °.
In FIG. 3 (i), the fixed contact interval is 120 °, and the number of movable contact pieces is 360.
3 (g), (h), and (i), if the angles of the fixed contacts 3 are arranged at intervals of 120 °, the rotary switch 2 can be further downsized by increasing the distance between the fixed contacts. it can.
However, the present invention is not limited to this, and it is also possible to set the desired angle interval of the fixed contact 3 and the number of contact pieces of the movable contact.

In FIG. 4, in the rotary switch in which four fixed contacts 3 are arranged at predetermined angular intervals on an arc centered on the operation shaft 5, the angular intervals of the fixed contacts 3 and the number of contact pieces 4 of the movable contacts are shown. Examples of those that are relatively simple and easy to manufacture are shown in (a) to (e). In either case, one of the movable contact pieces is always in contact with the fixed contact when the operation shaft is rotated. Further, the number of control target switching position groups 14 can be arbitrarily set. That is,
FIG. 4 (a) shows that the fixed contact interval is 15 ° and the contact pieces of the movable contact are 60 ° and 6 pieces.
FIG. 4 (b) shows a case where the fixed contact interval is 18 ° and the contact pieces of the movable contact are 5 ° at 72 °.
FIG. 4 (c) shows that the fixed contact interval is 22.5 °, and the contact pieces of the movable contacts are 90 ° and four pieces,
FIG. 4 (d) shows that the fixed contact interval is 30 ° and the contact pieces of the movable contact are three at 120 °.
In FIG. 4E, the fixed contact interval is 45 °, and the contact pieces of the movable contact are two at 180 °.
However, the present invention is not limited to this, and the desired angular interval of the fixed contact 3 and the number of contact pieces of the movable contact can be set.

  The rotary switch 2 is provided with a click feeling means by a known switching moderation mechanism (not shown) when the fixed contact 3 is rotated while maintaining an equal interval of a predetermined angle α.

  Control targets such as a plurality of circuits or circuit constants selected by the rotation of the rotary switch include switching of input / output circuits of a device in which the rotary switch 1 with the rotation direction discriminating mechanism is mounted, a low-pass filter, There is a wide range of selection switching such as band pass filter or high pass filter, selection switching of sound quality adjustment circuit such as high, middle, and low sounds, and control of volume.

  The contact switching timing of the rotary switch 2 may be a break-before-make method or a make-before-break method.

  When the rotary switch 2 rotates endlessly, the control device 6 counts the number of rotations of the rotary switch 2 and sets the addresses of the control target positions K1 to K9 in the clockwise direction or the counterclockwise direction. Since the number of positions to be controlled can be set to an arbitrary number from K1 to Kn, corresponding to the number of rotations, extremely fine control is possible. For example, a variable resistor can be used to adjust the volume and sound quality of an audio device. It can be controlled with the same feel as the variable operation.

  Further, the number of rotations of the rotary switch 2 is counted by the control device 6, and the addresses of the control target positions K1 to K9 are added to K1 to Kn corresponding to the number of clockwise or counterclockwise rotations. When the display switching means 11 is linked to the addresses of the control target positions K1 to Kn, it responds to the continuous light / dark display corresponding to the rotation of the rotary switch 2 or the rotation of the rotary switch 2. Thus, it is possible to display an arbitrary position corresponding to the address, or a position display such as a numerical display by a display such as a liquid crystal display. Even if the operation shaft 5 is rotated more than once, if the above display is performed, the control coping position can be easily visually confirmed.

A second embodiment of the rotary switch 1 with a rotation direction discriminating mechanism using a plurality of rotary switches 2 of the present invention will be described based on the block diagram of FIG.
In the second embodiment of the present invention shown in FIG. 5, a plurality of endless rotary switches 2 from No. 0 to N, and a plurality of control target groups 18 from No. 0 to N corresponding to the endless rotary switches 2 are provided. , A plurality of display means 19 of No. 0 to N that display which control target positions (K1 to Kn) are selected from the respective control target position groups 14, a rotation direction determination means 10, and a display The control unit 6 includes the switching unit 11, the software in the calculation unit 12 of the control target switching unit 13, and the calculation unit 12 as hardware, the memory 7, and the power supply monitoring unit 8.

  The connection terminals A, B, C of the endless rotary switch 2 connected in parallel are connected to the I / O port of the computing means 12 and connected to the power supply VCC via the pull-up resistor R. .

  The movable contact connection terminal G of each endless rotary switch 2 is connected to the I / O port of the computing means 12 via a diode 15.

  Then, by operating each of the endless rotary switches 2, selection of control target positions included in the corresponding control target group 18 (No. 0 to N) and switching of the display means 19 (No. 0 to N) Are configured to be performed via the control device 6.

  Now, when the endless rotary switch 2 numbered 0 (hereinafter referred to as the 0th rotary switch, and similarly referred to as the Nth rotary switch, etc.) is rotated, the 0th rotary switch is connected. The input position of the I / O port of the computing means 12 is recognized, and the rotation direction discriminating means 10, the controlled object switching means 13, and the display switching means 11 are operated as prescribed according to the flowchart shown in FIG.

  Even if any one of the number 0 to number N rotary switches 2 is simultaneously rotated, the input of the I / O port of the computing means 12 to which each of the connection terminals G of the movable contacts of each rotary switch 2 is connected. The position is recognized, and the rotation direction discriminating means 10, the controlled object switching means 13, and the display switching means 11 are operated as prescribed in accordance with the flowchart shown in FIG.

The diode 15 is connected at its anode side to the movable contact connection terminal G of each rotary switch 2, and at the cathode side is connected to the input of each I / O port of the computing means 12. It operates to determine the rotation of the target endless rotary switch 2 and to protect the computing means 12.
When the potential of the I / O port of the computing means 12 for judging the rotation is set to L and the potential of the I / O port of the other computing means 12 is set to H, no current flows through the other rotary switches and the circuit is disconnected. Therefore, the calculation means 12 can recognize only the rotation of the target endless rotary switch 2.

  If the diode 15 is not inserted, it will not operate normally, and for example, the 0th rotary switch 2 of the same fixed contact 3 of the fixed contact connecting terminals A, B, C of the plurality of endless rotary switches 2 The terminal A of the fixed contact 3 and the terminal A of the fixed contact 3 of the number 1 rotary switch 2 are simultaneously connected to the respective movable contact pieces 4, and the rotation contact of the number 0 rotary switch 2 is connected by the arithmetic means 12. When the potential L is selected for the connection terminal G and the potential H is selected for the connection terminal G of the rotary contact of the first rotary switch 2, the computing means connected to the rotary contact of the first rotary switch 2 A route through which a large current flows from the 12 I / O ports to the I / O port of the computing means 12 connected to the rotary contact of the 0th rotary switch 2 is damaged. Because, the diode 15 acts as a current blocking.

The plurality of endless rotary switches 2 share one rotation direction determination unit 10, one control target switching unit 13, and one display switching unit 11 provided in the control device 6. Each of the endless rotary switches 2 is operated by one (or a plurality if necessary) calculating means 12 that recognizes the rotation direction and selecting a control target position included in the control target group. Switching of the display means 9 is executed.
Therefore, it is not necessary to arrange the rotation direction discriminating means 10, the controlled object switching means 13, and the display switching means 11 in each of the 0th to Nth rotary switches 2.

  Other configurations and operations are the same as in the first embodiment.

FIG. 7 is a block diagram for explaining a third embodiment of the present invention.
In the present embodiment, as shown in the block diagram of FIG. 6, a plurality of the rotary switches 2 (hereinafter referred to as endless rotary switches for the purpose of distinguishing from the rotary range regulation type rotary switches described later), and the rotation range regulation. This is a rotary switch 1 with a rotational direction discriminating mechanism that uses both a rotary switch 16 of a type and a push switch 17 of an interlocking type (or a plurality of tact switches).

Therefore, a plurality of control target groups 18 (No. 0 to N) corresponding to each endless rotary switch 2, a control target group 20 of the rotation range regulation type rotary switch, and a control target group 21 of the interlocking push switch, respectively. Display means 19 (0-N), 19 ′, 19 ″ for displaying any one of the control target positions selected from the control target group;
Rotation direction discriminating means 10 as software in the arithmetic means 12, switching range regulating rotary switch, interlocking push switch switching discriminating means 10 ', display switching means 11, controlled object switching means 13, and hardware It comprises a control device 6 having a calculation means 12 as wear, a memory 7 and a power supply monitoring means 8.

  The fixed contact connecting terminals A, B and C of the rotation range regulating rotary switch 16 are connected in parallel to the fixed contact connecting terminals A, B and C of the endless rotary switches 2 and the movable terminal G ′ is The diode 15 is connected to the I / O port of the arithmetic means 12 through the diode 15.

  The rotation range regulation type rotary switch 16 is composed of three fixed contacts 3 and one movable contact, and the movable contact reciprocates between the three fixed contacts. The three control target positions included in the control target group 20 of the rotation range restriction type rotary switch are selected by the control of the switching determination means 10 ′ of the rotation range restriction type rotary switch and the interlocking type push switch.

  The interlocking push switch 17 in the present embodiment is a triple push switch (or a plurality of tact switches) composed of three push switches, and each terminal of the rotary switch 2 is fixed to one terminal thereof. A potential applied from the power supply VCC via the pull-up resistor R is supplied to the terminal, the other contact is connected in parallel, and the connection terminal G ″ is connected to the I / O port of the computing means 12 via the diode 15. ing.

  The interlocking push switch 17 is a control target item corresponding to the switch from three control target items included in the control target group 21 of the interlocking push switch when any one of the push switches becomes conductive. Select to display.

  Each fixed terminal of the rotary range regulation type rotary switch 16 and each terminal to which a potential is applied via the pull-up resistor R from the power source VCC of the interlocking type push switch 17 are determined based on addresses given thereto. Therefore, the rotation direction discriminating means 10 is not involved, and any of the movable contacts of the rotation range regulating type rotary switch 16 or which switch contact of the interlocking push switch 17 is at the potential L. Is detected, and the control range is selected and the display means 19 ′ and 19 ″ are switched by the switching range restricting rotary switch and the interlocking push switch switching discriminating means 10 ′ and the display switching means 11.

  The operation of the diode 15 for current blocking is the same as that of the second embodiment, and other configurations and operations are the same as those of the first embodiment.

FIG. 7 is a block diagram for explaining a fourth embodiment of the present invention.
In this embodiment, a plurality of endless rotary switches 2 (No. 0 to N), a plurality of rotary range regulating rotary switches 16, and a plurality of interlocking push switches (or a plurality of tact switches). ) 17 is a rotary switch with a rotational direction discriminating mechanism.

In this example,
(A) a plurality of endless rotary switches 2 assigned with numbers 0 to N, a control group 18 of Nos. 0 to N corresponding thereto, and display means 19 of Nos. 0 to N;
(B) Three rotation range restriction type rotary switches 16a, 16b, 16c each having two, three, and five fixed contacts, and corresponding rotation range restriction type rotary switch control target groups 20a. , 20b, 20c, and display means 19a ′, 19b ′, 19c ′ corresponding to the number of control items included in each control target group 20a, 20b, 20c,
(C) 4 contact and 5 contact interlocking push switches 17a and 17b, each interlocking push switch control object 21, and display means 19 '' corresponding to the number of control items included in each control object group 21;
(D) Turning direction discriminating means 10 as software in the computing means 12, display switching means 11, turning range regulating rotary switch, interlocking push switch switching discriminating means 10 ', and computation as hardware The control device 6 includes means 12, a memory 7, and power supply monitoring means 8.

  The connection and operation of the 0 to N endless rotary switches 2 in (a) and the control device 6 are the same as those in the second embodiment and will not be described.

  (B) The connection terminals A and B of the fixed contact of the rotary range regulation type rotary switch 16a having two fixed contacts are connected in parallel with the connection terminals A and B of the fixed contact of the endless rotary switch 2. Yes.

  Further, the connection terminals A, B, C of the fixed contact of the rotary range regulating rotary switch 16 having three fixed contacts are connected in parallel with the connection terminals A, B, C of the fixed contact of the endless rotary switch 2. Has been.

  Further, the fixed terminals A, B and C of the rotary range regulating type rotary switch 16b having five fixed contacts are connected in parallel with the fixed terminals A, B and C of the endless rotary switch 2 and are added. Each of the fixed terminals D and E is assigned an address and is connected to the power supply VCC via a pull-up resistor R which is similarly increased.

  The connection terminals A, B, and C of the fixed contact of the four-contact interlocking type push switch 17 of (c) are connected in parallel with the fixed terminals A, B, and C of the endless rotary switch 2, and the additional fixed terminal D is an address. Are respectively connected to the power supply VCC via a pull-up resistor R which is similarly increased.

  Further, the fixed contact connecting terminals A, B and C of the five-contact interlocking push switch 17 are connected in parallel to the fixed contact connecting terminals A, B and C of the endless rotary switch 2 and the fixed terminal D is added. , E are each assigned an address and are connected to the power supply VCC via a pull-up resistor R which is similarly increased.

  Further, the connecting terminals G ′, G ″ of the movable contacts of the rotary range-regulating rotary switches 16 a, 16 b, 16 c and the interlocking push switches 17 a, 17 b are connected to the calculation means 12 via the diodes 15. It is connected to each I / O port.

  Connection of connection terminals A, B, C, D, E of the fixed contacts of the rotary range regulating type rotary switches 16a, 16b, 16c and contacts to which the potentials of the interlocking push switches 17a, 17b are applied. The terminals A, B, C, D, and E are discriminated by reading the addresses given to these terminals by the arithmetic means 12, so that the rotation direction discriminating means 10 is not involved, and the potential is set to L by the operation of each switch. The calculation means 12 detects whether the connection terminal is A, B, C, D, or E, and the rotation range regulation type rotary switch and the interlocking type push switch switching judgment means 10 ′ and display The switching unit 11 selects a control target item and switches the display unit.

  The operation of the diode 15 for current blocking is the same as that of the second embodiment, and other configurations and operations are the same as those of the first embodiment.

At least three fixed contacts arranged at predetermined angle α intervals on a circular arc centered on the operation axis, and rotated by the operation axis while maintaining equal intervals of the predetermined angle α. A rotary switch composed of a movable contact comprising a plurality of contact pieces radially projecting about an operation shaft so as to be always connected to any one of the fixed contacts, and the rotary switch Since the movable contact connection terminal and the fixed contact connection terminal are connected to each other, the rotation direction determination means for determining the rotation direction of the operation shaft by computer control,
For example, in an audio device, even when it is necessary to perform switching of input / output circuits of the device, selection switching of a low-pass filter, a band-pass filter, a high-pass filter, or the like with a 24-step rotary switch, the fixed contact of the rotary switch is Only three pieces arranged at an angular interval of 15 ° are required, and the movable contact has a simple structure including only eight contact pieces projecting radially around the rotating shaft. In combination with a decrease in the number of wires, a low-cost rotary switch with a rotational direction discriminating mechanism can be constructed.

Therefore, as shown in the conventional example, in order to detect the rotation direction of the rotary switch, if the B-phase signal is low level at the rising edge of the A-phase signal, it is counted up, and conversely, the B-phase signal is high level. There is no need for a complicated and accurate mechanism that counts down and detects the direction of rotation.
In addition, since it is a simple rotation direction detection method, it can be provided at low cost, and since it is controlled by a control device using a computer, rotation direction discrimination without occurrence of malfunction due to chattering, rotation speed, etc. A rotary switch with a mechanism can be constructed.

  The present invention is mounted on various devices, switching of input / output circuits of the devices, selection switching of a low pass filter, a band pass filter, a high pass filter, etc., and a sound quality adjusting circuit for high / medium / low sounds in an audio system. The present invention is applicable to a wide variety of technical fields such as selection switching, volume control switching, switching of the above-mentioned acoustic parameters in an audio / video system, and switching of video / image mode.

1: Rotary switch with rotation direction discriminating mechanism 2: Rotary switch 3: Fixed contact 4: Contact piece 5 of movable contact: Operation shaft 6: Control device 7: Memory 8: Power supply monitoring means 9: Display means 10: Direction of rotation Discriminating means 10 ': Switching discriminating means of rotation range regulating rotary switch and interlocking push switch 11: Display switching means 12: Computing means 13: Control object switching means 14: Control object switching position group 15: Diodes 16, 16a , 16b, 16c: Rotary range regulation type rotary switches 17, 17a, 17b: Interlocking push switch 18: Control target group (No. 0 to N)
19, 19 ′, 19 ″, 19a ′, 19b ′, 19c ′: Display means 20, 20a, 20b, 20c: Control target groups 21, 20a, 20b, 20c of the rotation range regulating rotary switch: Interlocking push switch Control target groups A, B, C, D, E: fixed contact connection terminals G, G ′: movable contact connection terminals G ″: common contacts K1 to K9 of interlocking push switches: control target positions P1 to P9: Display lamps S11 to S21: Step 103: Code plates 104a, 104b, 104c in the conventional example: Slider piece 115 in the conventional example: Movable contact 115a in the conventional example: Common electrode 115b in the conventional example: Comb tooth portion 116 in the conventional example 119: Sliding plate 118 in the conventional example: Missing portion in the conventional example

(2) In the preceding paragraph (1),
The rotary switch is provided with a switching moderation mechanism that is interlocked with the rotation of the operation shaft, and when the rotary switch is rotated while maintaining a predetermined angle α of the fixed contact, the operator A rotary switch with a rotation direction discriminating mechanism characterized by giving a click feeling to the lens.

(5) In the preceding paragraph (3) or (4),
The controller is
Wherein counting the oscillating number of the rotary switch, the watch direction address of the control target position, or added in response to the number of times of rotation of the counter-clockwise direction can be arbitrarily set the number of the control target position A rotary switch with a rotation direction discriminating mechanism.

(8) In any one of the preceding items ( 3 ) to ( 7 ),
At least three fixed contacts arranged at equal intervals at a predetermined angle α along an arc centered on the operation axis, and rotated with the operation shaft at equal intervals of the predetermined angle α. And a movable contact connection terminal comprising a plurality of contact pieces radially projecting about the operation shaft so as to be always connected to any one of the fixed contact connection terminals when rotated. A plurality of rotary switches composed of
Connection terminals having the same address of the fixed contact connection terminals of the plurality of rotary switches are connected in parallel, and each of the connection terminals is given the second potential H (or L) via a resistor. And
The applied potential information is input to the control device,
The movable contact connection terminal of each rotary switch is connected to the control device via a diode, and at the same time, an address is given to each of the movable contact connection terminals.
By making the diode conductive, the control device detects which address of the movable contact connection terminal the rotary switch corresponding to the rotary switch is rotated, and the rotation direction of the operation shaft corresponding to each detected rotary switch Is determined by the rotation direction determining means, and based on the determined rotation direction, switching of the control target position in the control target group in charge of the rotary switch and display switching of the selected control target position are performed. A rotary switch with a rotation direction discriminating mechanism.

A first potential L (Low Level) (or a potential H (High Level)) is applied to the movable contact connection terminal, and the connection terminals of the fixed contacts are connected via resistors. is applied a second potential H (or L) is also changed to the each fixed to the contact connection terminals each address is applied, the potential by the rotation of the operation shaft first conductive level L (or H) Since the rotational direction of the rotary switch can be determined by the rotational direction determining means from the address arrangement of the fixed contact connection terminals, as in the device described in Patent Document 1 shown in the background art, In order to detect the rotation direction, if the B phase signal is low level at the rising edge of the A phase signal, it counts up, and conversely, if the B phase signal is high level, it counts down. A complicated and precise mechanism is not required, and the rotation direction can be determined with a simple structure rotary switch, and the rotation direction is determined by a computer at a low cost, resulting in chattering, rotation speed, etc. Thus, a rotary switch with a rotational direction discriminating mechanism that does not malfunction can be constructed.

6). According to the invention of claim 6 of the present invention,
In addition to the effect of claim 5, counts the rotation number of the rotary switch by the control device, the watch direction address of the control target position, or added to correspond to the number of times of rotation of the counter-clockwise direction When
The display switching means enables position display such as continuous light and dark display, arbitrary position display corresponding to the address, or numerical display in conjunction with the address of the control target position. Even if a rotation operation that exceeds the rotation is performed, the position to be controlled can be easily visually confirmed.

7). According to the invention of claim 7 of the present invention,
In addition to the effects of claims 1 to 6, wherein when the rotary switch with the turning direction determination mechanism power of installed equipment is turned off, the address of the control target position which has been selected in the power-off just before the Since it is stored in the memory, even if the operation axis of the rotary switch that switches the position to be controlled is accidentally rotated when the power of the device is turned off, it is stored immediately before the power is turned off when the device is turned on and restarted. The apparatus operates with the control target position of the selected address selected, and the position number is displayed by the display means, so that the work can be carried out efficiently.

DESCRIPTION OF EMBODIMENTS Embodiments for carrying out the present invention will be described in detail with reference to the drawings of the embodiments.
1 to 7, 1 is a rotary switch with a rotation direction discriminating mechanism, 2 is a rotary switch, 3 is a fixed contact, A, B, and C are connection terminals of a fixed contact, 4 is a contact piece of a movable contact, Operation shaft, 6 is a control device (computer device), 7 is a memory, 8 is a power supply monitoring means, 9 is a display means, 10 is a rotation direction discriminating means, 10 'is a rotation range regulating type rotary switch, and an interlocking push Switch switching determination means, 11 is a display switching means, 12 is a calculation means, 13 is a control object switching means, 14 is a control object switching position group, 15 is a diode, 16, 16a, 16b, and 16c are rotary range regulation type rotarys Switches 17, 17 a and 17 b are interlocking push switches, 18 is a control target (No. 0 to N), 19, 19 ′, 19 ″, 19 a ′, 19 b ′ and 19 c ′ are display means (No. 0 to N) ), 20, 20 a, 20 b, and 20 c are control target groups of the rotation range regulation type rotary switch, 21 is an interlocking type push switch control target group, G, G ′, and G ″ are connection terminals of movable contacts, and K 1 to Kn are control targets. Position, P1 to P9 are display lamps, and S11 to S21 are steps.

The rotary switch 1 with a rotation direction discriminating mechanism according to this embodiment is composed of a computer device to which the rotary switch 2 and fixed contact connection terminals A, B, and C connected to the fixed contacts of the rotary switch 2 are connected. ON / OFF of the power supply (not shown) of the device equipped with the control device 6, the memory 7 for storing the address of the position number assigned to the position to be controlled, and the rotary switch with the rotation direction discriminating mechanism. The power supply monitoring means 8 for monitoring and the display means 9 (in the present embodiment, display lamps P1 to P9) for displaying which of the currently selected control target positions are configured.

When power is supplied to the rotary switch 1 with the rotation direction discriminating mechanism, its operation is “Start”.

FIG. 6 is a block diagram for explaining a third embodiment of the present invention.
In the present embodiment , as shown in the figure , a plurality of the rotary switches 2 (hereinafter referred to as endless rotary switches for the purpose of being distinguished from a rotary range regulating type rotary switch to be described later), and a rotary range regulating type rotary switch. 16, Rotary switch 1 with a rotation direction discriminating mechanism using each one of interlocking type (or plural tact switches) push switches 17
It is.

At least three fixed contacts arranged at predetermined angle α intervals on a circular arc centered on the operation axis, and rotated by the operation axis while maintaining equal intervals of the predetermined angle α. A rotary switch composed of a movable contact comprising a plurality of contact pieces radially projecting about an operation shaft so as to be always connected to any one of the fixed contacts, and the rotary switch The movable contact connecting terminal and the fixed contact connecting terminal are connected to each fixed contact connecting terminal, and provided with a rotation direction determining means for determining the rotation direction of the operation shaft by the control of the control device .
For example, in an audio device, even when it is necessary to perform switching of input / output circuits of the device, selection switching of a low-pass filter, a band-pass filter, a high-pass filter, or the like with a 24-step rotary switch, the fixed contact of the rotary switch is Only three pieces arranged at an angular interval of 15 ° are required, and the movable contact has a simple structure including only eight contact pieces projecting radially around the rotating shaft. In combination with a decrease in the number of wires, a low-cost rotary switch with a rotational direction discriminating mechanism can be constructed.

Claims (8)

A fixed contact connection terminal having at least three fixed contacts arranged at equal intervals at a predetermined angle α along an arc centered on an operation axis rotated by an operator's operation, and the operation axis By rotating at an equal interval of the predetermined angle α, and projecting radially about the operation shaft so that when it rotates, it is always connected to any one of the fixed contacts. A rotary switch having a movable contact connection terminal having a movable contact composed of a plurality of contact pieces provided;
A rotation direction discriminating means that is connected to the movable contact connection terminal and each fixed contact connection terminal of the rotary switch and discriminates the rotation direction of the operation shaft under the control of a control device;
A first potential L (or H) is applied to the movable contact connection terminal, and a second potential H (or L) is applied to each fixed contact connection terminal connected to the control device via a resistor. In addition, each address is given to the connection terminal of each fixed contact, and the potential changes to the first potential (or second potential) L (or H) by the rotation of the operation shaft. A rotary switch with a rotational direction discriminating mechanism, wherein the rotational direction discriminating unit discriminates the rotational direction of the rotary switch based on the address arrangement of the fixed contact connection terminals. In claim 1,
The rotary switch is provided with a switching moderation mechanism that is interlocked with the rotation of the operation shaft, and when the rotary switch is rotated while maintaining a predetermined angle α of the fixed contact, the operator A rotary switch with a rotation direction discriminating mechanism characterized by giving a click feeling to the lens. In claim 1 or 2,
The controller is
Control target switching means for assigning an address to each of the control target positions such as a plurality of circuits or circuit constants selected by the rotation of the rotary switch, and detecting the rotation of the rotary switch and sequentially switching the control target position When,
Display means for displaying the control target position;
Display switching means for switching a display indicating a corresponding control object in conjunction with an address of the control object position switched by the control object switching means;
A memory for storing an address of the control target position;
A rotary switch with a turning direction discriminating mechanism. In claim 3,
The control object switching means included in the control device includes:
When the operation shaft of the rotary switch is turned counterclockwise, the control target is sequentially moved from the control target position selected immediately before the operation to the control target position in the direction in which the address is decremented (or incremented). switching,
When the operation axis of the rotary switch is rotated clockwise, the control target is switched from the control target position selected immediately before the operation to a control target position in a direction in which an address is incremented (or decremented). A rotary switch with a rotation direction discriminating mechanism. In claim 3 or 4,
The controller is
The number of rotations of the rotary switch is counted, the address of the control target position is added corresponding to the number of clockwise or counterclockwise rotations, and the number of control target positions can be arbitrarily set. Rotary switch with rotating direction discriminating mechanism. In claim 5,
When the rotation number of the rotary switch is counted by the control device, and the address of the control target position is added corresponding to the number of counterclockwise rotations or clockwise rotations,
The display switching means enables position display such as continuous light / dark display, arbitrary position display corresponding to the address, or numerical display in conjunction with the address of the control target position. Rotary switch with direction discrimination mechanism.   The address of the control target position selected immediately before the power is turned off when the power of the device equipped with the rotary switch with a rotation direction discriminating mechanism according to claim 1 is turned off. A rotary switch with a rotation direction discriminating mechanism, characterized in that In any one of Claims 1 thru | or 6,
At least three fixed contacts arranged at equal intervals at a predetermined angle α along an arc centered on the operation axis, and rotated with the operation shaft at equal intervals of the predetermined angle α. And a movable contact connection terminal comprising a plurality of contact pieces radially projecting about the operation shaft so as to be always connected to any one of the fixed contact connection terminals when rotated. A plurality of rotary switches composed of
Connection terminals having the same address of the fixed contact connection terminals of the plurality of rotary switches are connected in parallel, and each of the connection terminals is given the second potential H (or L) via a resistor. And
The applied potential information is input to the control device,
The movable contact connection terminal of each rotary switch is connected to the control device via a diode, and at the same time, an address is given to each of the movable contact connection terminals.
By making the diode conductive, the control device detects which address of the movable contact connection terminal the rotary switch corresponding to the rotary switch is rotated, and the rotation direction of the operation shaft corresponding to each detected rotary switch Is determined by the rotation direction determining means, and based on the determined rotation direction, switching of the control target position in the control target group in charge of the rotary switch and display switching of the selected control target position are performed. A rotary switch with a rotation direction discriminating mechanism.

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