JP5213667B2 - Operation feeling imparting type input device - Google Patents

Description

  The present invention relates to an operation feeling imparting type input device that can be used as an input device for various electronic devices, in-vehicle electrical components, and the like, and can impart a dynamic operation feeling to an operator.

  Conventionally, as a type of input device that gives a feeling of operation by friction type resistance force, a force curve that repeats increase and decrease of resistance force as the rotation angle of the rotation operation part changes is set, and rotation operation is set There is known a prior art that gives a click feeling every time a peak (peak point) of a force curve is passed in the middle of (see, for example, Patent Document 1).

For example, if the above-mentioned force curve has such characteristics that resistance increases gradually in the climbing section and disappears at a stretch in the descending section, a smooth and sharp continuous click feeling can be obtained. I know that. For this reason, even in the prior art, for example, if the rotation angle of the knob is increased from zero, the resistance force gradually increases from a predetermined value, and after 40 degrees, the resistance force does not increase and the resistance force decreases at once. A force curve (synthetic force pattern) is provided. If the actuator (electromagnetic brake) is controlled using such a force curve, it is considered that a smooth and sharp click feeling can be generated every 40 degrees in the process of continuous change of the rotation angle.
Japanese Patent Laying-Open No. 2003-295959 (paragraphs 0033 to 0036, FIG. 3)

  However, the rotation operation unit does not always rotate in a fixed direction, and the rotation direction arbitrarily changes depending on the intention of the operator. Therefore, it is not preferable to use a force curve that is effective only in one direction. . That is, a force curve that is effective only in one direction gradually increases the resistance in the climbing section when rotating in one direction, but increases in resistance in the climbing section when rotating in the opposite direction. This is because it becomes a characteristic.

  Therefore, in general, in order to obtain a common characteristic for both rotation directions, there is a restriction that a force curve having a common inclination in the climbing section and the descending section must be employed. Under such restrictions, the drag force cannot be reduced at a stretch in the downward section of the force curve, so that it is not possible to obtain a sharp click feeling.

  Therefore, the present invention has an object to provide a technique capable of obtaining a sharp click feeling even when a force curve showing a common characteristic is used for both rotation directions.

  In order to solve the above problems, the present invention employs the following solutions.

  Solution 1: An operation feeling imparting type input device according to the present invention includes a rotation operation unit that rotates by receiving an operation force from an operator, a detection unit that detects a rotation angle of the rotation operation unit, and rotation that rotates together with the rotation operation unit And a friction resistance applying means for generating a resistance force against an operating force from an operator by applying a friction resistance to the rotating member, and a control means for applying the friction resistance by the friction resistance applying means. It is the structure controlled by. The control means uses a force curve prepared in advance when controlling the frictional resistance applying operation.

  For this reason, the operation feeling imparting type input device of the present invention includes storage means for storing a force curve, and when the force curve is a rotation angle coordinate when the rotation angle of the rotation operation unit is viewed on a predetermined coordinate axis, When this rotation angle coordinate changes from the minimum position specified in advance on the coordinate axis to the maximum position, the magnitude of the resistance force gradually decreases from the minimum value to the maximum value regardless of the direction of the coordinate axis. When the rotation angle coordinate changes from the maximum position to the minimum position, the resistance force rotates gradually to decrease from the maximum value to the minimum value regardless of the direction of the coordinate axis. The relationship between the angular coordinates and the resistance force has a predetermined characteristic.

  When the control means determines that the rotation angle coordinate is in an upward movement state from the minimum position to the maximum position on the coordinate axis based on the detection result of the detection means, the control means is based on the magnitude of the resistance force defined by the force curve. The frictional resistance applying operation by the frictional resistance applying means is controlled. On the other hand, when it is not possible to determine that the state is the above-described climbing movement state, the control unit controls the frictional resistance applying operation by the frictional resistance applying unit by reducing the resistance force below the magnitude determined by the force curve.

  As described above, in the present invention, the force curve prepared in advance has a common characteristic regardless of the rotation direction of the rotation operation unit (the movement direction of the rotation angle coordinate viewed on the coordinate axis). For this reason, if it can be judged that the movement is in the climbing section of the force curve in terms of control, the resistance force is gradually generated as the rotation operation unit is rotated by generating the resistance force according to the characteristics of the force curve. It is possible to realize an operation feeling that increases.

  On the other hand, if it can no longer be determined that the movement is in the climbing section of the force curve (climbing movement state) on the control, resistance force is not generated according to the predetermined characteristics, but the force curve is determined. The operation of the frictional resistance applying means is controlled by reducing the resistance force rather than the characteristic. Thereby, without being restricted by the characteristics of the force curve, it is possible to greatly reduce the resistance force in the descending section or to reduce it at a stretch, and thus it is possible to generate a sharp click feeling.

  Solution 2: If it is not possible to determine that the control means is in an upward movement state, the control means may stop the application of the friction resistance by the friction resistance application means regardless of the magnitude of the resistance force defined by the force curve. it can.

  In the case of the above aspect, resistance force does not occur when moving outside the climbing section of the force curve, so, for example, after the rotation angle coordinate reaches the maximum position from the minimum position, it passes the maximum position and then passes to the next minimum position. When it comes to moving toward, it can lose resistance at a stretch. Thereby, a clearer and sharper click feeling can be generated.

  Solution 3: Alternatively, when the control unit determines that the rotation angle coordinate is moving from the maximum position to the minimum position on the coordinate axis, the rotation angle coordinate is moved to the destination regardless of the detection result by the detection unit. It is good also as replacing with the minimum position of (the destination which was going to move).

  In the case of the above aspect, for example, when the rotation angle coordinate reaches the maximum position from the minimum position, and further passes through the maximum position and moves toward the next minimum position, the rotation angle on control at a stretch there. The coordinates can be jumped to the next minimum position. In this case, even if the resistance force is generated based on the rotation angle coordinates and the force curve after replacement, the resistance force at that time is a minimum value, so the resistance force should be reduced at once. Can do. In addition, when the operator continues to rotate the rotary operation unit, the rotation angle coordinate skips the movement in the descending section (the section from the maximum position to the next minimum position) and jumps to the next climbing section. Immediately after the resistance force is reduced at once, the resistance force can be gradually increased. Therefore, in addition to the sharpness, it is possible to generate a click feeling with a sense of connection every time.

  Solution 4: In the above solution 3, the control means outputs a rotation angle coordinate as an external output signal, so that a signal corresponding to the rotation angle of the rotation operation unit can be displayed on a predetermined display screen. You may further have an output part. When the solution means 3 replaces the rotation angle coordinates with the minimum position of the movement destination, the control means can output the replaced rotation angle coordinates as an external output signal from the signal output unit.

  For example, it is assumed that the operation feeling imparting type input device of the present invention is used in conjunction with a display device, and the rotation angle of the rotation operation unit is linked with the pointer display on the display screen. In such a case, by outputting the rotation angle coordinates from the control means as an external output signal to the display device, the rotation angle coordinates can be reflected on the display on the screen on the display device that has received the rotation angle coordinates. .

  In the above use, usually, when the rotation operation unit is operated, the position of the pointer changes on the screen in conjunction with the change of the rotation angle coordinate at that time, but the rotation angle coordinate is the maximum as described above. When the position is passed, the rotation angle coordinate is replaced with the next minimum position in terms of control. Therefore, if the rotation angle coordinates after this replacement are output as an external output signal, the pointer position can be jumped to the target position of the movement destination on the display device, so that it can be displayed with a connected click feeling. It is possible to match the visual expression on the display screen.

  Solving means 5: In the solving means 3 and 4, the frictional resistance applying means has an electromagnetic brake for generating an electromagnetic force upon receiving power supply and applying a frictional resistance to the rotating member using the electromagnetic force. Also good. In this case, the control means can control the magnitude of the resistance force by adjusting the magnitude of the current or voltage accompanying the supply of electric power to the electromagnetic brake, and when the rotation angle coordinate is at the minimum position, It is desirable to stop supplying power to

  With this configuration, the control means stops power feeding to the electromagnetic brake not only when the rotation angle coordinate is at the minimum position from the beginning, but also when the rotation angle coordinate is replaced with the reference position on the control. Useless power consumption can be reduced.

  Solving means 6: Alternatively, in the solving means 1 and 2, the control means reduces the magnitude of the resistance force defined by the force curve corresponding to the rotation angle coordinate as the rotation angle coordinate moves on the coordinate axis. If it is determined, the frictional resistance applying operation by the frictional resistance applying means may be stopped regardless of the magnitude of the resistance determined by the force curve.

  If it is said aspect, resistance force will not generate | occur | produce, while the rotation angle coordinate is moving the downward section of a force curve. For this reason, for example, when the rotation angle coordinate finishes moving in the climbing section of the force curve and approaches the next descending section, resistance force can not be generated at once, so a sharp click feeling is also generated. Can be made.

  The operation feeling imparting type input device of the present invention can generate a sharp click feeling using a common force curve even when the operator rotates the rotation operation unit in any direction.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The operation feeling imparting type input device of the present invention is used as an input device (user interface) for in-vehicle electrical components such as car navigation devices as well as various electronic devices (computer devices, audio devices, video devices), for example. Can do.

  FIG. 1 is a schematic diagram illustrating an overall configuration of an operation feeling imparting type input device 10 according to an embodiment. In FIG. 1, most of the mechanical configuration of the operation feeling imparting type input device 10 is shown by a vertical section. In FIG. 1, the electrical configuration of the operation feeling imparting type input device 10 is shown as a block element.

[Rotation operation section]
The operation feeling imparting type input device 10 includes a rotation operation unit 12, and the rotation operation unit 12 has, for example, a rotary knob shape (dial shape). The operator can rotate the rotary operation unit 12 while pinching it. At this time, the rotary operation unit 12 rotates around a central axis CL indicated by a one-dot chain line in the drawing.

  The rotation operation unit 12 is connected to, for example, one end of the rotation shaft 14. The rotation shaft 14 extends in one direction (downward in FIG. 1) from the rotation operation unit 12 along the center axis CL, and the rotation shaft 14 rotates around the center axis CL together with the rotation operation unit 12. .

[Elastic member]
The rotary shaft 14 is provided with an elastic member 15 in the middle of the axial direction. For this reason, the rotating shaft 14 has the structure divided | segmented into the 1st part 14a and the 2nd part 14b in the axial direction on both sides of the elastic member 15. FIG. The elastic member 15 and the first part 14a and the second part 14b are firmly joined at the respective joints. For the elastic member 15, for example, rubber can be used as a material.

[Rotation detection]
A code plate 16 that is a detection target is attached to the outer periphery of the rotating shaft 14 (first part 14a). The code plate 16 has a thin disk shape centered on the rotating shaft 14, and slits (not shown) are formed at a constant pitch in the circumferential direction. In addition, an index (light-shielding portion) (not shown) is formed on the outer peripheral portion of the code plate 16 in the circumferential direction with the origin position in the rotation direction as a base point.

  For example, two photointerrupters 18 and 19 are installed in the vicinity of the rotation shaft 14 as detection units, and these photointerrupters 18 and 19 transmit the slits of the code plate 16 at positions where detection lights are different from each other. Adjusted to relationship. When the rotation operation unit 12 is rotated, the code plate 16 is rotated together with the rotation shaft 14, and rotation angle signals (encoder pulses) having a phase difference are output from the two photointerrupters 18 and 19. The

(Rotating member)
For example, the rotating member 20 is attached to the rotating shaft 14 near the center of the second part 14b in the axial direction. The rotating member 20 has, for example, a disk-shaped main body portion 20a, and the main body portion 20a extends in the radial direction around the rotating shaft 14 (second part 14b). A through hole 20b is formed at the center position of the main body 20a, and the through hole 20b is formed so as to penetrate the main body 20a in the thickness direction. The rotating member 20 is fixed to the rotating shaft 14 with the rotating shaft 14 (second part 14b) inserted through the through hole 20b. Therefore, when the rotation operation unit 12 is operated, the rotating member 20 rotates around the central axis CL together with the rotating shaft 14.

[Elements that provide frictional resistance]
A friction plate 22 is attached to the rotary shaft 14 at a position adjacent to the rotary member 20 when viewed in the longitudinal direction. The friction plate 22 also has a disc-shaped main body 22a, for example, and an insertion hole 22b is formed at the center position thereof. The insertion hole 22b of the friction plate 22 also passes through the main body portion 22a in the thickness direction, but its inner diameter is slightly larger than the outer diameter of the rotating shaft 14. For this reason, the friction plate 22 is not fixed to the rotating shaft 14 (second part 14b), and is supported in a state in which relative rotation about the central axis CL is possible with respect to the rotating shaft 14 and the rotating member 20. ing.

  The friction plate 22 can be slightly displaced in the axial direction in a state where the rotating shaft 14 (second part 14b) is inserted into the insertion hole 22b. In addition, between the outer peripheral surface of the rotating shaft 14, and the inner peripheral surface of the insertion hole 22b, the bearing (not shown) which can slide along the rotating shaft 14 may be provided, for example. The friction plate 22 is entirely made of a magnetic material (for example, iron).

[Electromagnetic brake]
The operation feeling imparting type input device 10 includes, for example, an electromagnetic brake 24. The electromagnetic brake 24 has a case type core 24a having, for example, a hollow cylindrical shape, and has a structure in which a hoop-like winding 24b is disposed inside the case type core 24a. A resin bearing 24c, for example, is provided at the center of the case core 24a, and the other end (the lower end as viewed in FIG. 1) of the rotary shaft 14 is rotatable to the case core 24a via the bearing 24c. It is supported. The electromagnetic brake 24 can generate an electromagnetic force in the case-type core 24a while the winding 24b is energized, and can adsorb the friction plate 22 in the thrust direction.

  The other end (second part 14b) of the rotating shaft 14 passes through the case core 24a and protrudes in the opposite direction (downward as viewed in FIG. 1) from the rotating member 20 and the friction plate 22, and at this protruding position. A flange-shaped stopper 26 is attached to the rotary shaft 14 (second part 14b). The stopper 26 prevents the rotating shaft 14 from slipping out from the case mold core 24a in one end direction (upward in FIG. 1).

  Further, the operation feeling imparting type input device 10 includes a control unit 28 as an electrical configuration, and to the control unit 28 are connected photo interrupters 18 and 19 and an electromagnetic brake 24. The configuration of the control system centering on the control unit 28 will be further described later.

(Friction resistance application operation)
The operation feeling imparting type input device 10 can attract the friction plate 22 by energizing the electromagnetic brake 24, and can impart frictional resistance to the rotating member 20 via the friction plate 22. For this reason, in the present embodiment, a structure in which the rotation is transmitted between the friction plate 22 and the rotating member 20 is adopted.

  In other words, the friction plate 22 is provided with two connection protrusions 22c protruding from the surface (the upper surface in FIG. 1). These connection protrusions 22c all extend from the surface of the friction plate 22 (main body portion 22a) toward the rotating member 20. On the other hand, the rotation member 20 has connection holes 20c formed at positions corresponding to the two connection protrusions 22c. These connection holes 20c extend through the main body portion 20a in the thickness direction, and connection protrusions 22c are inserted into the connection holes 20c, respectively. Each connection protrusion 22c has a total length that protrudes to some extent from the surface (upper surface in FIG. 1) of the rotating member 20 (main body portion 20a) in a state of being inserted into the connection hole 20c.

  FIG. 2 is a plan view (including the II-II cross section in FIG. 1) showing the connection relationship between the rotating member 20 and the friction plate 22. As shown in FIG. 2, the two connection protrusions 22c are inserted into the connection holes 20c of the rotating member 20, and the relative rotation between the rotating member 20 and the friction plate 22 is restricted in this state. Has been. For this reason, when the friction plate 22 is attracted by the electromagnetic brake 24, a frictional resistance in the rotation direction is applied to the rotating member 20 via the friction plate 22. However, as described above, the connection protrusion 22c is not restricted from moving in the axial direction in the connection hole 20c, and thus the axial force does not reach the entire rotating shaft 14.

[Function of elastic member]
The elastic member 15 causes torsional deformation (elastic deformation) in the rotation direction when the rotation operation unit 12 is operated in a state in which frictional resistance is applied to the rotation member 20. However, since the elastic member 15 is made of a material having sufficient rigidity with respect to the torque at that time even when the rotary operation unit 12 is operated in a state where the applied frictional resistance is maximum, the elastic member 15 It will not yield or break. Therefore, the elastic member 15 can transmit the operation force received by the rotation operation unit 12 from the first part 14 a to the second part 14 b and the rotation member 20 while being deformed within a normal elastic range. Accordingly, when the operator applies a certain amount of operating force to the rotation operation unit 12, the rotation operation unit 12 can be continuously rotated while slipping the friction plate 22 with respect to the electromagnetic brake 24.

  On the other hand, the elastic member 15 can be returned from the deformation state until then when the operator releases his / her hand from the rotary operation unit 12 or loosens the operation force in a state where the elastic deformation has occurred as described above. Along with this return, the elastic member 15 slightly rotates the rotation operation unit 12 and the code plate 16 together with the first part 14a in the opposite direction. Therefore, when the rotation operation unit 12 stops receiving the operation force in a state where the frictional resistance is applied, the rotation angle of the rotation operation unit 12 slightly changes in the direction opposite to the rotation direction so far.

[Control system configuration]
FIG. 3 is a block diagram schematically showing the configuration of the control system of the operation feeling imparting type input device 10. The control unit 28 includes, for example, a calculation unit 28a using a processor (CPU), a storage unit 28b (storage unit) using a memory device such as a RAM and a ROM, and a micro unit including an input unit 28c and an output unit 28d. It is configured as a computer.

  The rotation angle signals output from the photo interrupters 18 and 19 are A / D converted by the input unit 28c and input to the calculation unit 28a. The calculation unit 28a calculates the rotation angle and rotation direction of the rotating shaft 14 (rotation operation unit 12) based on this input signal. The calculation unit 28a outputs a control signal based on the calculation result of the rotation angle and the rotation direction, and controls the operation (power supply) of the electromagnetic brake 24. The control signal at this time is converted into a drive current or drive voltage supplied to the electromagnetic brake 24 through the output unit 28d.

[Display device]
The operation feeling imparting type input device 10 of the present embodiment can be used by being connected to a display device 30 as an external system, for example. In this case, the operation feeling imparting type input device 10 can output an external output signal related to display control from the control unit 28 to the display device 30.

  For example, when a pointer or the like is displayed on a display screen (not shown) of the display device 30 in conjunction with the rotation of the rotation operation unit 12, the control unit 28 is a rotation angle coordinate for indicating the display position of the pointer. Is output as an external output signal. The display device 30 displays a pointer on the display screen based on the rotation angle coordinates received from the control unit 28. Accordingly, the display device 30 can move the pointer on the display screen in real time in conjunction with the change in the rotation angle of the rotation operation unit 12.

[Display operation example]
FIG. 4 is a diagram illustrating an example of a display operation linked to a change in the rotation angle (rotation angle coordinates) of the rotation operation unit 12.

  4A: In this display operation example, a bar-shaped guide bar B is displayed so as to cross the display screen 32, and a plurality of scales SC1, S2, S2 are arranged at equal intervals along the guide bar B. S3, S4 and S5 are displayed. Each scale SC1 to S5 represents an individual channel that can be selected by radio broadcasting, for example, and therefore character information such as “CH1” to “CH5” is displayed above each scale SC1 to S5. Yes.

  A pointer P imitating a finger mark is displayed below the guide bar B, and the display position of the pointer P is changed in conjunction with the rotation angle of the rotation operation unit 12. In this display operation example, the scale SC2 (channel being selected) that is currently effectively indicated by the pointer P is more emphasized than the other scales SC1, S3, S4, and S5 (for example, enlargement and light emission). Status).

  FIG. 4B: From the above state, for example, when the operator rotates the rotary operation unit 12 in the clockwise direction, the pointer P is moved to the right on the display screen 32 in conjunction with this, and the next The pointer P can be adjusted to the scale SC3. This operation also switches the channel currently being selected in a radio receiver (not shown) (CH2 → CH3).

[Example of operation feel]
In such a display operation example, the operation feeling imparting type input device 10 is also used for the channel selection operation of the radio receiver, and the rotation operation unit 12 generates an operation feeling as a channel switching knob. It is desirable to make it. For this reason, for example, when the pointer P moves in the horizontal direction on the display screen 32, the operation feeling imparting type input device 10 operates as follows by applying friction resistance between the scales SC1 to SC5. A clear click feeling is generated for the channel selection operation by the user.

  For example, when the operator rotates the rotary operation unit 12 in the clockwise direction from the state shown in FIG. 4A, the display position of the pointer P is sequentially changed as shown in FIG. Move to the right. At this time, when the pointer P starts to move from the scale SC2 to the next scale SC3, the operation feeling imparting type input device 10 gradually increases the frictional resistance applied by the electromagnetic brake 24, and the pointer P becomes the scale SC2, SC2. The maximum frictional resistance is imparted at the point in the middle of S3. If the operator still rotates the rotary operation unit 12 against the frictional resistance at this time, the frictional resistance decreases at a stroke from this, and the operation feeling becomes light.

  Further, when the operator continues to rotate the rotation operation unit 12 and the pointer P reaches the next scale SC3 and then the pointer P moves from the scale SC3 toward the next scale SC4, an operation feeling imparting type input device is provided. Similarly, 10 gradually increases the frictional resistance applied by the electromagnetic brake 24, and gives the maximum frictional resistance when the pointer P reaches the middle of the scales SC3 and S4. Then, when the operator still rotates the rotary operation unit 12 against the frictional resistance at this time, the frictional resistance decreases again from there again, and the operation feeling becomes lighter.

  As described above, by clicking the scales SC2, SC3, and SC4 while gradually increasing the operation feeling while the pointer P is moving, the click feeling can be generated.

  Further, if the pointer P is sequentially moved on the display screen 32 with the click feeling as described above, it is possible to give the operator a clear operation feeling of “switching the channels one by one”. At the same time, if the highlight display is sequentially switched from the scale SC2 to the next scale SC3 and then to the next scale SC4 on the display screen 32, the visual change overlaps therewith to operate a very natural and comfortable operation feeling. Can be granted to a person.

  The provision of the click feeling as described above can be realized by the control unit 28 executing the following control processing. Hereinafter, an example of a control process executed by the control unit 28 will be described.

[Control processing]
FIG. 5 is a flowchart illustrating an exemplary procedure of control processing executed by the control unit 28 (mainly the calculation unit 28a). The procedure of the control process is stored as a control program in the storage unit 28b, for example. Hereinafter, it demonstrates along each procedure.

  Step S10: First, the calculation unit 28a executes an initial setting process. In this processing, for example, current detection signals input from the photo interrupters 18 and 19 are stored, and this state is set as the initial position of the rotation operation unit 12. In addition, the calculation unit 28a reads the coordinate axis data stored in the storage unit 28b, and sets the initial position of the rotation operation unit 12 to the initial rotation angle coordinates on the coordinate axis.

  Step S20: Next, the computing unit 28a performs angle detection processing. This process is for detecting the current rotation angle of the rotation operation unit 12. For example, the calculation unit 28a detects, based on the detection signals from the photo interrupters 18 and 19, how much angle the rotation operation unit 12 has rotated in which direction from the initial position set in the initial setting process. . Based on the detected rotation direction and rotation angle, the calculation unit 28a calculates the current rotation angle coordinate (θ) corresponding to the rotation angle of the rotation operation unit 12 on the coordinate axis.

  Step S30: Next, the calculation unit 28a executes a frictional force calculation process. This process is for calculating the magnitude of the frictional resistance generated by the electromagnetic brake 24 based on the current rotation angle coordinate (θ) calculated in the previous angle detection process and the force curve prepared in advance. . The force curve profile data can be stored in advance in the storage unit 28b, for example. The force curve profile will be further described later with a specific example.

  Step S40: Subsequently, the computing unit 28a executes an electromagnetic brake drive process. In this process, the electromagnetic brake 24 is actuated based on the calculation result in the previous frictional force calculation process, thereby applying a frictional resistance to the rotating member 20. Thereby, a resistance force can be generated against the operation of the rotary operation unit 12 actually performed by the operator. Further, the magnitude of the resistance force generated at this time depends (proportional) on the magnitude of the frictional resistance that the electromagnetic brake 24 applies to the rotating member 20.

  Step S50: The computing unit 28a executes signal output processing. This process is for outputting an external output signal to the external display device 30. Specifically, the calculation unit 28a outputs the rotation angle coordinate (θ) corresponding to the current rotation angle of the rotation operation unit 12 to the display device 30 as an external output signal. The display device 30 controls the display position of the pointer P on the display screen 32 based on the external output signal.

  After the power is turned on, the calculation unit 28a steadily executes the above processes (steps S20 to S50), so that the rotation angle coordinate (θ) corresponding to the current rotation angle of the rotation operation unit 12 is calculated in real time. At the same time, by driving the electromagnetic brake 24 based on the rotation angle coordinate (θ) at that time, the frictional resistance applied to the rotating member 20 also changes according to the change in the rotation angle.

[Example of force curve]
Next, FIG. 6 is a diagram showing a comparison between an example of a force curve that can be used in the calculation in the frictional force calculation process (step S30) and the display operation example.

  6A: For example, a state is assumed in which the pointer P is displayed at a position indicating the center scale SCn + 1 among the three scales SCn, SCn + 1, and SCn + 2 displayed side by side on the display screen 32. .

  In FIG. 6, (B): The force curve represents the rotation angle of the rotation operation unit 12 on the abscissa axis (predetermined coordinate axis), and the magnitude of the frictional resistance (f) corresponding to the rotation angle coordinate (θ) at that time. (Θ)), that is, the magnitude of the resistance force generated by the electromagnetic brake 24 is represented on the ordinate axis. On the abscissa axis, the minimum positions An, An + 1, An + 2 and the maximum positions Bn, Bn + 1 are defined in advance. , SCn + 2.

[Minimum position, Maximum position]
In the force curve, when the rotation angle coordinate (θ) is at any one of the minimum positions An, An + 1, and An + 2, the corresponding resistance force (friction resistance) has a minimum value (fmin). Further, when the rotation angle coordinate (θ) is at either of the maximum positions Bn and Bn + 1, the corresponding frictional resistance has a maximum value (fmax).

[Inclination characteristics]
In addition, when the rotation angle coordinate (θ) changes from one of the minimum positions toward the adjacent maximum position as the rotation operation unit 12 rotates, the change is in any direction ( Even in the positive direction or the negative direction), the magnitude of the resistance force gradually increases from the minimum value (fmin) to the maximum value (fmax). Furthermore, when the rotation angle coordinate (θ) changes from one of the maximum positions to the adjacent minimum position, the force curve is resistant to any change (positive direction or negative direction). Has a slope characteristic that gradually decreases from a maximum value (fmax) to a minimum value (fmin).

[Climbing section, descending section]
For this reason, when the rotation angle coordinate (θ) changes from one minimum position toward the next maximum position, the section is forced regardless of which direction (positive or negative direction) the change is. It becomes the climb section of the curve. On the other hand, when the rotation angle coordinate (θ) changes from one of the maximum positions toward the adjacent minimum position, the section is the force curve regardless of the direction (positive or negative direction). It becomes the down section.

  As described above, the force curve applied to the present embodiment exhibits a common inclination characteristic regardless of the direction in which the rotation angle coordinate (θ) changes. In addition, in the present embodiment, the frictional force calculation process (step S30) is further performed in order to improve the sharpness of each click generated in the process of continuous rotation of the rotation operation unit 12 as described above. The following procedure example is adopted.

[Example of the first procedure]
FIG. 7 is a flowchart specifically showing a first procedure example of the frictional force calculation process (step S30 in FIG. 5) executed in the control process described above. Hereinafter, the contents of the processing will be described along the flowchart.

[Down section to the right of the minimum position]
Step S300: The computing unit 28a determines whether or not the rotation angle coordinate (θ) is in a downward section on the right side of any minimum position. This determination needs to be made in consideration of not only the rotation angle coordinate (θ) at that time but also the direction of change up to that point (the rotation direction of the rotation operation unit 12).

  For example, in FIG. 6A, the rotation angle coordinate (θ) moves to the right on the abscissa axis, and from the maximum position Bn + 1 on the right side of the minimum position An + 1 to the next minimum position An + 2. When there is a rotation angle coordinate (θ) between them, the calculation unit 28a can determine that “the rotation angle coordinate (θ) is in the right downstream section of the minimum position An + 1” (Yes). In this case, the arithmetic unit 28a next executes step S302.

  Step S302: Next, the calculation unit 28a determines whether or not the rotation angle coordinate (θ) has increased from the previous rotation angle coordinate (θold) by a predetermined angle (Δθ) (increase rightward (+)). ). Specifically, the calculation unit 28a determines whether or not the following conditional expression (1) is satisfied.

θ> (θold + Δθ) (1)
The predetermined angle (Δθ) can be set to an angle obtained by multiplying the minimum unit of the rotation angle that can be detected using the photo interrupters 18 and 19 by N times, for example. The previous rotation angle coordinate (θold) is a value used when the previous process is executed. If it is determined that the above conditional expression (1) is satisfied (Yes), the arithmetic unit 28a next executes step S304.

  Step S304: In this case, the calculation unit 28a changes the rotation angle coordinate (θ) to the next minimum position on the right side when viewed on the abscissa axis. Thereby, even if the rotation angle coordinate (θ) has been in the downward section of the force curve until then, the rotation angle coordinate (θ) is replaced with the next minimum position in terms of control.

  Step S306: The computing unit 28a computes the magnitude of the resistance force (F = f (θ)) based on the replaced rotation angle coordinate (θ). Note that the calculation results performed here will be further described later with an example together with the drawings.

  In particular, when the conditional expression (1) is not satisfied in the determination in step S302 (No), the calculation unit 28a directly executes step S306 without executing step S304. In this case, the calculation unit 28a calculates the magnitude of the resistance force (F = f (θ)) based on the rotation angle coordinate (θ) at that time. The calculation results performed here will be further described later with an example together with the drawings.

[Down section to the left of the minimum position]
In the previous step S300, when it is determined that the rotation angle coordinate (θ) is not in the right downward section (No), the calculation unit 28a executes step S308.

  Step S308: In this case, the calculation unit 28a determines whether or not the rotation angle coordinate (θ) is in the downward section on the left side of any minimum position. This determination also needs to take into account not only the rotation angle coordinate (θ) at that time but also the direction of change up to that point (the rotation direction of the rotation operation unit 12) as described above. It is.

  For example, in FIG. 6A, the rotation angle coordinate (θ) moves to the left on the abscissa axis, and from the maximum position Bn on the left side of the minimum position An + 1 to the next minimum position An. If there is a rotation angle coordinate (θ) between them, the calculation unit 28a can determine that “the rotation angle coordinate (θ) is in the downward section on the left side of the minimum position An + 1” (Yes). In this case, the calculation unit 28a next executes step S310.

  Step S310: Next, the calculation unit 28a determines whether or not the rotation angle coordinate (θ) has decreased from the previous rotation angle coordinate (θold) by a predetermined angle (Δθ) (decrease left (−)). if you did this). Specifically, the calculation unit 28a determines whether or not the following conditional expression (2) is satisfied.

θ <(θold−Δθ) (2)
If it is determined that the above conditional expression (2) is satisfied (Yes), the calculation unit 28a next executes step S312.

  Step S312: In this case, the calculation unit 28a changes the rotation angle coordinate (θ) to the next minimum position on the left side when viewed on the abscissa axis. As a result, even if the rotation angle coordinate (θ) has been in the downward section of the force curve, the rotation angle coordinate (θ) is replaced with the next minimum position in terms of control.

  Step S306: The calculation unit 28a calculates the magnitude of the resistance force (F = f (θ)) based on the rotation angle coordinate (θ) after replacement. The calculation result will be further described later with an example together with the drawing.

  Similarly, if the conditional expression (2) is not satisfied in the determination in step S310 (No), the calculation unit 28a executes step S306 as it is without executing step S312. In this case, the calculation unit 28a calculates the magnitude of the resistance force (F = f (θ)) based on the rotation angle coordinate (θ) at that time. The calculation result here will be further described later with an example together with the drawing.

[In case of climbing movement]
The above procedure is for the case where the rotation angle coordinate (θ) is moving in the descending section, but the following procedure is executed when the rotation angle coordinate (θ) is moving in the climbing section. .

  Step S300: When the rotation angle coordinate (θ) is moving in the climbing section, the calculation unit 28a does not determine that “the rotation angle coordinate (θ) is in the downward section on the right side of the minimum position An + 1” (No). Next, the calculation unit 28a executes step S308.

  Step S308: Furthermore, since it is not determined here that “the rotation angle coordinate (θ) is in the downward section on the left side of the minimum position An + 1” (No), the calculation unit 28a next executes Step S306.

  Step S306: In this case, the calculation unit 28a calculates the magnitude of the resistance force (F = f (θ)) determined by the slope characteristics of the climbing section of the force curve.

  When the calculation unit 28a returns to the control process through the above frictional force calculation process, an electromagnetic brake drive process (step S40 in FIG. 5) is executed based on the calculation result (F) at that time. Thereby, the operation state of the electromagnetic brake 24 is actually controlled.

[First example of calculation result]
FIG. 8 is a diagram showing a display operation example when the pointer P moves rightward on the display screen 32, a first example of a force curve, and a calculation result.

  In FIG. 8, (A): For example, it is assumed that the pointer P is displayed at a position indicating the center scale SCn + 1 on the display screen 32, and the pointer P moves rightward from this state.

[Climbing state]
In FIG. 8, (B): In this case, the rotation angle coordinate (θ) moves to the right from the initial minimum position An + 1 in accordance with the rotation operation of the rotation operation unit 12. If the rotation angle coordinate (θ) is moving rightward in the section from the minimum position An + 1 to the maximum position Bn + 1 on the right side of the minimum position An + 1, in the above frictional force calculation process, the calculation unit 28 a It is not determined that “(θ) is in the downward segment on the right side of the minimum position An + 1” (step S300: No), and is determined that “the rotation angle coordinate (θ) is in the downstream segment on the left side of the minimum position An + 1”. There is also no need (step S308: No).

  (C) in FIG. 8: Therefore, in a state where the rotation angle coordinate (θ) is moving rightward from the minimum position An + 1 to the maximum position Bn + 1 on the right side thereof, the calculation result of the resistance force by the calculation unit 28a (F = f (θ)) is a pure reflection of the relationship between the rotation angle coordinate (θ) and the slope characteristic of the force curve.

[When moving to the down section]
Thereafter, when the rotation angle coordinate (θ) passes through the local maximum position Bn + 1 and moves to the downward section on the right side thereof, in the frictional force calculation process, the calculation unit 28a determines that “the rotation angle coordinate (θ) is at the minimum position An + 1. It is determined that it is in the right-side down section "(step S300: Yes).

  For example, if it moves to the rotation angle coordinate (θx1) in this descending section and the conditional expression (1) is satisfied (step S302: Yes), as shown by the arrow in (C) in FIG. In 28a, the rotation angle coordinate (θ) is replaced with the next right minimum position An + 2 (step S304).

[Improved click feel]
Originally, as shown in FIG. 8B, the magnitude of the resistance force (F = f (θx1)) corresponding to the rotation angle coordinate (θx1) until then is obtained as the calculation result. However, by the above replacement, the calculation result becomes the minimum value (fmin) corresponding to the minimum position An + 2. Thereby, a sharp click feeling can be generated by reducing the magnitude of the resistance force at a stretch when moving to the downward section.

[Click feeling connection]
Further, after the rotation angle coordinate is replaced, if the operator continues to rotate the rotation operation unit 12 in the same direction, the rotation angle coordinate (θ) moves up the section immediately after the click feeling occurs. The resistance will gradually increase from the time. Therefore, when the operator continuously rotates the rotation operation unit 12 in the same direction, it is possible to generate a click feeling that is sharp and has a sense of connection.

[Second example of calculation result]
Next, FIG. 9 is a diagram showing a display operation example when the pointer P moves leftward on the display screen 32, a force curve, and a second example of calculation results.

  In FIG. 9, (A): Here, it is assumed that the pointer P is displayed at the position indicating the center scale SCn + 1 on the display screen 32, and the pointer P moves leftward from this state.

[Climbing state]
In FIG. 9, (B): In this case, the rotation angle coordinate (θ) moves to the left from the initial minimum position An + 1 in accordance with the rotation operation of the rotation operation unit 12. If the rotation angle coordinate (θ) is moving to the left in the section from the minimum position An + 1 to the adjacent maximum position Bn on the left side, in the above frictional force calculation process, the calculation unit 28a is originally “rotation angle”. It is not determined that the coordinate (θ) is in the downward section on the right side of the minimum position An + 1 ”(step S300: No), and“ the rotation angle coordinate (θ) is in the downstream section on the left side of the minimum position An + 1 ”. No determination is made (step S308: No).

  In FIG. 9, (C): Therefore, even when the rotation angle coordinate (θ) is moving in the left direction from the minimum position An + 1 to the maximum position Bn adjacent to the left, the calculation of the resistance force by the calculation unit 28a. The result (F = f (θ)) purely reflects the relationship between the rotation angle coordinate (θ) and the inclination characteristic of the force curve.

[When moving to the down section]
Thereafter, when the rotation angle coordinate (θ) passes through the maximum position Bn and moves to the left-side downward section, in the above frictional force calculation process, the calculation unit 28a determines that “the rotation angle coordinate (θ) is at the minimum position An + 1. It is determined that it is in the left-side down section "(step S308: Yes).

  Then, if the descending section is moved to the rotation angle coordinate (θx2) and the conditional expression (2) is satisfied (step S310: Yes), as shown by the arrow in (C) in FIG. 28a replaces the rotation angle coordinate (θ) with the next minimal position An on the left side (step S312).

[Improved click feel]
Similarly, the magnitude of the resistance force (F = f (θx2)) corresponding to the rotation angle coordinate (θx2) is obtained as the calculation result as shown in FIG. 9B. However, by the above replacement, the calculation result becomes a minimum value (fmin) corresponding to the minimum position An. As a result, the sharpness of the click feeling can also be generated by reducing the magnitude of the resistance force at a stretch even when moving to the left downward section of the minimum position An + 1.

[Display operation example]
Although not particularly shown in FIGS. 8 and 9, when the calculation unit 28a replaces the rotation angle coordinate as described above (θx1 → An + 2 or θx2 → An), the rotation angle coordinate after the replacement (An + 2 or An) Is output as an external output signal. As a result, the display position of the pointer P on the display screen 32 is changed to the scale SCn + 2 or the scale SCn. Therefore, the timing of occurrence of the click feeling and the timing of visual change on the display screen 32 can be made to coincide with each other, so that the operator can feel a natural operation feeling.

[Second example procedure]
Next, a second procedure example of the frictional force calculation process will be described. FIG. 10 is a flowchart specifically showing a second procedure example of the frictional force calculation process (step S30 in FIG. 5) executed in the control process described above. Hereinafter, the contents of the processing will be described along the flowchart.

  Step S350: First, the calculation unit 28a acquires the magnitude (f (θ)) of the resistance force defined by the force curve based on the rotation angle coordinate (θ) at that time.

Step S352: Next, the calculation unit 28a determines whether or not the current resistance magnitude (f (θ)) is smaller than the value (f (θ) old) calculated in the previous control process. Specifically, it is determined whether the following conditional expression (3) is satisfied.
f (θ) <f (θ) old (3)
As a result, if the conditional expression (3) is satisfied (Yes), the calculation unit 28a next executes step S354.

  Step S354: In this case, the calculation unit 28a sets the value of the calculation result (F) of the resistance force actually generated by the electromagnetic brake 24 to 0 (F = 0). Therefore, when the arithmetic unit 28a subsequently returns to the control process and executes the electromagnetic brake drive process, the electromagnetic brake 24 is switched to a non-operating state (power supply is stopped).

[Climbing state]
On the other hand, when the conditional expression (3) is not satisfied in step S352 (No), the calculation unit 28a executes step S356.

  Step S356: In this case, the calculation unit 28a employs the value (f (θ)) acquired in the previous step S350 as the calculation result of the resistance force actually generated by the electromagnetic brake 24 (F = f (θ)). . Accordingly, when the calculation unit 28a subsequently returns to the control process and executes the electromagnetic brake drive process, the operating state of the electromagnetic brake 24 is controlled based on the calculation result (F = f (θ)).

[First Example of Calculation Result Regarding Second Procedure Example]
FIG. 11 is a diagram showing a display operation example when the pointer P moves rightward on the display screen 32 in the second procedure example, and a first example of a force curve and a calculation result.

  In FIG. 11, (A): Similarly, it is assumed that the pointer P is displayed at the position indicating the center scale SCn + 1 on the display screen 32, and the pointer P moves to the right from this state.

[Climbing state]
In FIG. 11, (B): In this case, the rotation angle coordinate (θ) moves to the right from the initial minimum position An + 1 in accordance with the rotation operation of the rotation operation unit 12. If the rotation angle coordinate (θ) is moving to the right in the section from the minimum position An + 1 to the adjacent maximum position Bn + 1 to the right, the frictional force calculation process of the second procedure example (step S352 in FIG. 10). ), The above conditional expression (3) is not satisfied (No).

  (C) in FIG. 11: Therefore, when the rotation angle coordinate (θ) is moving in the right direction from the minimum position An + 1 to the adjacent maximum position Bn + 1 to the right, the calculation result of the resistance force by the calculation unit 28a (F = f (θ)) is a pure reflection of the relationship between the rotation angle coordinate (θ) and the slope characteristic of the force curve (step S356).

[When moving to the down section]
Thereafter, when the rotation angle coordinate (θ) passes through the local maximum position Bn + 1 and moves to the right downward section, in the frictional force calculation process (step S352) of the second procedure example, the conditional expression (3) is now satisfied. (Yes). In this case, even if it has moved to the rotation angle coordinate (θx1) in the descending section, the calculation unit 28a sets the calculation result of the resistance force to 0 (step S354).

[Improved click feel]
Therefore, originally, as shown in FIG. 11B, the magnitude of the resistance force (F = f (θx1)) corresponding to the rotation angle coordinate (θx1) until then can be obtained as the calculation result. However, in the second procedure example, the calculation result (F) is a minimum value (where fmin = 0). Thereby, a sharp click feeling can be generated by reducing the magnitude of the resistance force at a stretch when moving to the downward section.

[Second Example of Calculation Result Regarding Second Procedure Example]
FIG. 12 is a diagram showing a display operation example when the pointer P moves rightward on the display screen 32 in the second procedure example, and a second example of the force curve and the calculation result.

  In FIG. 12, (A): In the second example, it is assumed that the pointer P is displayed at the position indicating the center scale SCn + 1 on the display screen 32, and the pointer P moves leftward from this state.

[Climbing state]
In FIG. 12, (B): In this case, the rotation angle coordinate (θ) moves to the left from the initial minimum position An + 1 as the rotation operation unit 12 rotates. If the rotation angle coordinate (θ) is moving leftward from the minimum position An + 1 to the left adjacent maximum position Bn, the frictional force calculation process of the second procedure example (step S352 in FIG. 10). ), The above conditional expression (3) is not satisfied (No).

  In FIG. 12, (C): Therefore, the calculation result of the resistance force (F = f (θ)) by the calculation unit 28a is purely the rotation angle coordinate (θ) at that time and the inclination characteristic of the force curve. Is reflected (step S356).

[When moving to the down section]
Thereafter, when the rotation angle coordinate (θ) passes through the maximum position Bn and moves to the left downward section, the conditional expression (3) is satisfied in the frictional force calculation process (step S352) of the second procedure example. (Yes) In this case, even if it has moved to the rotation angle coordinate (θx2) in the descending section, the calculation unit 28a sets the calculation result of the resistance force to 0 (step S354).

[Improved click feel]
Therefore, originally, as shown in FIG. 12B, the magnitude of the resistance force (F = f (θx2)) corresponding to the rotation angle coordinate (θx2) until then can be obtained as the calculation result. Although there is a calculation result (F) here, it is a minimum value (fmin = 0). Thus, even when moving to the left down section, the sharpness of the click feeling can be generated by reducing the magnitude of the resistance force at once.

  As described above, in this embodiment, even if a force curve having a common inclination characteristic is used regardless of the moving direction of the rotation angle coordinate (θ) viewed on the abscissa axis, a sharp click feeling according to the moving direction is used. Can be generated. In particular, when the first example of the frictional force calculation process (FIG. 7) is adopted, a click feeling with a sense of connection can be generated in addition to sharpness, so that the operation feeling of the rotary operation unit 12 is further comfortable. Can be.

  The present invention is not limited to the embodiments described above, and can be implemented with various modifications. In one embodiment, the calculation result of the resistance force is uniformly set to the minimum value (fmin = 0) in the downward section of the force curve, but the value (> fmin) reduced from the resistance force corresponding to the force curve is used as the calculation result. Also good.

  In the embodiment, the rotation operation unit 12 has a knob shape, but the rotation operation unit 12 may have a drum shape, a stick shape, or a spherical shape.

  Further, the rotation operation unit 12 is not limited to the clockwise operation or the counterclockwise rotation as viewed from the operator, but may be, for example, a device that rotates in the front-rear direction or a device that rotates in an oblique direction. Furthermore, in the embodiment, an example is given in which the pointer P is moved in the horizontal direction as a display operation. However, the pointer P may be moved in the vertical direction or may be moved in an oblique direction.

  The force curve of the electromagnetic brake 24 is not limited to the example (mountain shape) given together with the drawing, and other patterns (for example, a rectangular shape or a trapezoidal shape) may be adopted.

  The detection of the rotation state is not limited to the combination of the code plate 16 and the photo interrupters 18 and 19, but may be realized by, for example, a combination of a reflection plate and a photo switch.

  In addition, the shapes and arrangements of the various members shown together with the drawings are all preferable examples, and it goes without saying that these can be appropriately changed during the implementation of the present invention.

It is the schematic which shows the whole structure of the operation feeling provision type | mold input device of one Embodiment. It is a top view (including II-II section in Drawing 1) showing the connection relation of a rotation member and a friction board. It is a block diagram which shows roughly the structure of the control system of an operation feeling provision type | mold input device. It is a figure which shows the example of the display operation linked with the change of the rotation angle (rotation angle coordinate) of a rotation operation part. It is a flowchart which shows the example of a procedure of the control process which a control part (calculation part) performs. It is the figure which contrasted and showed the example of the force curve which can be used for a calculation in a frictional force calculation process, and the example of a display operation. It is the flowchart which showed the 1st example of a procedure of frictional force calculation processing concretely. It is the figure which contrasted and showed the 1st example of the display operation example in case a pointer moves rightward on a display screen, a force curve, and a calculation result. It is the figure which contrasted and showed the 2nd example of the display operation example in case a pointer moves to the left direction on a display screen, a force curve, and a calculation result. It is the flowchart which showed the 2nd example of a procedure of frictional force calculation processing concretely. It is the figure which showed the display operation example in case a pointer moves rightward on a display screen in a 2nd procedure example, the 1st example of a force curve and a calculation result. It is the figure which contrasted and showed the 2nd example of the display operation example in case a pointer moves rightward on a display screen in a 2nd procedure example, a force curve, and a calculation result.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Operation feeling provision type input device 12 Rotation operation part 14 Rotating shaft 16 Code board 18, 19 Photo interrupter 20 Rotating member 22 Friction board 24 Electromagnetic brake 28 Control part 28a Calculation part 28d Output part 30 Display apparatus 32 Display screen

Claims (4)

A rotation operation unit that rotates by receiving an operation force from an operator;
Detecting means for detecting a rotation angle of the rotation operation unit;
A rotating member that rotates together with the rotation operation unit;
Friction resistance applying means for generating a resistance force against an operation force from an operator by applying a friction resistance to the rotating member;
When the rotation angle of the rotation operation unit is a rotation angle coordinate seen on a predetermined coordinate axis, when the rotation angle coordinate changes from a minimum position defined in advance on the coordinate axis to a maximum position, the change is In any direction of the coordinate axis, when the magnitude of the resistance force gradually increases from a minimum value to a maximum value and the rotation angle coordinate changes from the maximum position to the minimum position, the change is Storage means for storing a force curve in which the relationship between the rotation angle coordinates and the resistance force is predetermined so that the magnitude of the resistance force gradually decreases from a maximum value to a minimum value in any direction of the coordinate axis. When,
When it is determined that the rotation angle coordinate is in an upward movement state from the minimum position to the maximum position on the coordinate axis based on the detection result of the detection means, the magnitude of the resistance force defined by the force curve while controlling the frictional resistance applying operation by the prior SL frictional resistance applying means on the basis of the climbing If you can not determine to be in the state of moving, the previous than the size defined by the force curve reduces the resistance Control means for controlling the application of frictional resistance by the frictional resistance applying means ,
The control means includes
When it is determined that the rotation angle coordinate is moving from the maximum position to the minimum position on the coordinate axis, the rotation angle coordinate is replaced with the minimum position of the movement destination regardless of the detection result by the detection unit. An operation feeling imparting type input device. The operation feeling imparting type input device according to claim 1,
The control means includes
If you can not determine to be in the state of the climbing movement, operation feeling, characterized in that stopping the frictional resistance applying operation by the prior SL frictional resistance applying means regardless of the magnitude of the resistance force defined by the force curve Giving type input device. In the operation feeling imparting type input device according to claim 1 or 2,
The control means includes
It further has a signal output unit that can display a position corresponding to the rotation angle of the rotation operation unit on a predetermined display screen by outputting the rotation angle coordinates as an external output signal,
Wherein when the rotation angle coordinate is replaced with the minimum positions of the destination, the replacement after the operation feeling imparting type input device which is characterized that you output from the signal output unit a rotation angle coordinate as the external output signal. In the operation feeling imparting type input device according to any one of claims 1 to 3,
The frictional resistance applying means is
Receiving an electric power supply, generating an electromagnetic force, and using this electromagnetic force has an electromagnetic brake that imparts friction resistance to the rotating member;
The control means includes
The magnitude of the resistance can be controlled by adjusting the magnitude of the current or voltage associated with the supply of power to the electromagnetic brake,
When the rotation angle coordinate is at the minimum position, supply of electric power to the electromagnetic brake is stopped .

Images