JP2010257815A - Rotary input device, and electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotary input device capable of suppressing occurrence of abnormal sound caused by a slide or the like between a slide member and a driving portion, and to provide an electronic apparatus. <P>SOLUTION: This rotary input device 10 includes a rotator 13 capable of rotating around an axis by receiving rotational operation of an operator, a rotor 15 which is fixed to the rotator 13 and rotates conjointly with rotation of the rotator, an ultrasonic motor 16 making contact with the rotor 15 to give rotating force to the rotator 13 through the rotor 15, a support stand 18 to rotatably support the rotator 13, a first adhesive layer 14 to fix the rotator 13 and the rotor 15, a second adhesive layer 17 to fix the ultrasonic motor 16 and the support stand 18. Out of the first adhesive layer 14 and the second adhesive layer 17, at least one of them includes a base material made of a vibration absorbing material. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a rotary input device and an electronic apparatus.

2. Description of the Related Art Conventionally, rotary input devices that are employed in electronic devices such as portable terminals, AV devices, and personal computers and perform input operations by rotating the rotor are known (see, for example, Patent Documents 1 and 2). ).
The rotary input device includes a rotor provided with a sliding member, and a drive unit that applies a rotational force to the rotor. When the drive unit is driven, the sliding member of the rotor and the surface of the drive unit are provided. The driving torque (rotational force) is transmitted to the rotor by the frictional force between the rotor and the rotor so that the rotor rotates.

JP 2004-319326 A JP 2005-128739 A

However, such a rotary input device has a problem that, when the drive unit is driven, abnormal noise is generated due to contact of a plurality of members due to vibration of the drive unit.
Specifically, the vibrator and the relative motion member are caused by a sudden change in contact pressure between the vibrator and the relative motion member due to an operator's pressing, a temperature change, a change in driving torque at the start or stop, and the like. There is a problem that it is not possible to prevent the generation of abnormal noise due to slip between the two and the generation of abnormal noise caused by the vibration of the vibrator being transmitted to the rotor or the drive unit and resonating.

  The subject of this invention is providing the rotary input device and electronic device which can suppress generation | occurrence | production of the abnormal noise by the slip etc. between a sliding member and a drive part.

In order to solve the above-mentioned problem, a rotary input device according to claim 1 is provided.
A rotor that can rotate around an axis in response to the operator's rotation operation,
A sliding member fixed to the rotor and rotating in conjunction with the rotation of the rotor;
A drive unit that contacts the sliding member and applies a rotational force to the rotor via the sliding member;
A support base for rotatably supporting the rotor;
A first adhesive layer for fixing the rotor and the sliding member;
A second adhesive layer for fixing the drive unit and the support base;
A rotary input device comprising:
At least one of the first adhesive layer and the second adhesive layer includes a base material made of a vibration absorbing material.

The invention according to claim 2 is the rotary input device according to claim 1,
The base material is formed of any one of acrylic foam, non-woven fabric, nitrile rubber, silicon rubber, ethylene propylene rubber, chloroprene rubber, acrylic rubber, and natural rubber.

The invention according to claim 3 is the rotary input device according to claim 1 or 2,
The drive unit is a vibration wave motor that utilizes resonance of a vibrator.

The rotary input device according to the invention of claim 4 is:
A rotor that can rotate around an axis in response to the operator's rotation operation,
A sliding member fixed to the rotor and rotating in conjunction with the rotation of the rotor;
A drive unit that contacts the sliding member and applies a rotational force to the rotor via the sliding member;
A support base for rotatably supporting the rotor;
A first adhesive layer for fixing the rotor and the sliding member;
A second adhesive layer for fixing the drive unit and the support base;
A rotary input device comprising:
The first adhesive layer and the second adhesive layer include a base material made of a vibration absorbing material,
The substrate is composed of any one of acrylic foam, non-woven fabric, nitrile rubber, silicon rubber, ethylene propylene rubber, chloroprene rubber, acrylic rubber, natural rubber,
The drive unit is a vibration wave motor that uses resonance of a vibrator,
The second adhesive layer is provided in a position different from a position where the vibrator is provided in the driving unit.

An electronic device according to the invention described in claim 5 is
The rotary input device according to any one of claims 1 to 4 is provided.

  According to the present invention, since at least one of the first adhesive layer and the second adhesive layer includes the base material made of the vibration absorbing material, the contact pressure changes between the sliding member and the drive unit. Since the base material can absorb the vibration caused by the sliding between the sliding member and the drive unit that occurs when there is a noise, the occurrence of abnormal noise can be reduced. In addition, it is possible to reduce the generation of abnormal noise that occurs when the vibration of the vibrator is transmitted to the rotor and the ultrasonic motor and resonates.

It is a perspective view of a mobile telephone provided with the rotary input device of this embodiment to which this invention is applied. It is a block diagram which shows the functional structure of the mobile telephone of this embodiment. It is an external appearance perspective view of the rotary input device of this embodiment. It is sectional drawing in the IV-IV line of FIG. It is an exploded view of the rotary input device of this embodiment. It is sectional drawing of a 1st contact bonding layer and a 2nd contact bonding layer.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The scope of the present invention is not limited to the illustrated example.
In the present embodiment, as an electronic device including the rotary input device according to the present invention, a cellular phone that performs a voice call by wireless communication will be described as an example.
In the following description, in the mobile phone 1 according to the present embodiment, the side on which the rotary input device 10 and the display screen G are arranged faces the front side, and the side on which the rotary input device 10 and the display screen G are arranged. The side is the rear side. The side on which the display screen G is arranged is the upper side, the side on which the rotary input device 10 is arranged is the lower side, and the direction orthogonal to both the front-rear direction and the up-down direction is the left-right direction.

In this embodiment, various operation inputs are performed on the mobile phone 1 by the rotary input device 10. For example, when the rotor 13 of the rotary input device 10 is rotated, the screen displayed on the display screen G is selectively switched or scrolled according to the rotation operation. Further, a rotational force is applied to the rotor 13 in accordance with the rotation angle of the rotor 13 by this rotation operation, and a force sense is presented to the operator.
Here, the “force sensation” is not a tactile sensation by simple vibration but a sense of weight applied to the finger when the rotor is rotated. Specifically, it means a feeling that the rotation is light or heavy. More specifically, for example, it refers to the feeling on the finger when the rotor 13 is rotated at a force of 0.05 Ncm or more at 3 to 6 msec or 1 to 5 degrees.

  For example, as shown in FIGS. 1 and 2, the mobile phone 1 includes a rotary input device 10 for an operator to perform an input operation, a mobile phone unit 30 operated by the rotary input device 10, and a mobile phone. And a main control unit 40 that performs overall control of the telephone 1.

First, the rotary input device 10 of this embodiment will be described.
2 to 5, for example, the rotary input device 10 is provided on the rear side of the rotor 13 that can be manually rotated by the operator, and rotates the rotor 13. And a support base 18 that is freely supported, and the whole has a substantially disk shape.

The rotor 13 includes a circular front surface portion 131 having an opening 131a at the center, and a peripheral surface portion 132 that protrudes rearward from the edge portion of the front surface portion 131 over the entire circumference. 18 is provided at a position that covers the front side of the rotary input device 10, thereby forming a front surface and a peripheral surface of the rotary input device 10.
The front surface portion 131 is an operation surface for an operator to perform a rotation operation. The operator rotates the rotor 13 while pressing one point of the front surface portion 131 with a fingertip or holding the peripheral surface portion 132. Then, an input operation to the mobile phone unit 30 is performed.
The rotor 13 may be formed of a heat-dissipating material such as aluminum, a material that is highly resistant to external impacts, or may be formed of a resin or the like.

  The support base 18 includes a base 181 and a PCB substrate 182 connected to the base 181. The support base 18 is provided at a position that covers the opening on the rear side of the rotor 13. Is made.

The base 181 includes a substantially donut-like pedestal portion 1811 having an open center, and four extending portions 1812 extending outward from the peripheral edge of the pedestal portion 1811.
Each extending portion 1812 is provided with a screw hole 1812a for screw attachment and a protrusion 1812b extending rearward on the rear surface outside the screw hole 1812a.
The base 181 is made of a material such as polycarbonate.

  The PCB substrate 182 has a flat plate ring shape having substantially the same outer diameter as that of the rotor 13, and a base portion 1811 of the base 181 is fitted and attached to the opening 182a at the substantially center. The PCB substrate 182 is provided with four mounting holes 182b for attaching the protrusions 1812b protruding from the rear surfaces of the extending portions 1812 of the base 181 corresponding to the protrusions 1812b. Then, the base portion 181 of the base 181 is attached to the opening portion 182a of the PCB substrate 182, and the protrusions 1812b of the base 181 are fitted into the attachment holes 182b of the PCB substrate 182, so that the PCB substrate 182 and the base 181 are integrated. Connected.

The PCB substrate 182 is provided with four hole portions 182c having diameters slightly larger than the screw holes 1812a at positions overlapping the screw holes 1812a of the base 181, corresponding to each screw hole 1812a. The screws 19 are screwed into the screw holes 1812a of the base 181 through the holes 182c of the PCB board 182 from the rear side of the board 182, so that the PCB board 182 and the base 181 are fixed.
Further, on the rear surface side of the PCB substrate 182, four pressure sensors 20 as pressure detecting means for detecting an axial (front-rear direction) pressure with respect to the rotor 13 are arranged.

  Further, a bearing 12 is disposed on the inner peripheral surface of the opening 131 a of the front surface portion 131 of the rotor 13, and a screw 11 serving as a rotation shaft of the rotor 13 is inserted into a through hole 12 a in the center of the bearing 12. It is inserted and provided. Then, from the front side of the rotor 13, the screw 11 is inserted into the through hole 12 a of the bearing 12, and the rear end portion of the screw 11 protruding rearward is formed in the center opening 1811 a of the base portion 1811 provided in the base 181. The screw 11 and the support base 18 are fixed by screwing into a female screw formed on the inner peripheral surface. Thereby, the rotor 13 is connected to the support base 18 so as to be rotatable around the screw 11.

  A code wheel 133 is fixed to the inner surface (rear surface) of the front portion 131 of the rotor 13. The code wheel 133 is disposed so that the center of the code wheel 133 coincides with the center of the rotor 13, and rotates in conjunction with the rotation of the rotor 13. On the rear surface of the code wheel 133, a reflection surface for reflecting light is printed at a predetermined pitch along the circumferential direction with two detection patterns of A phase and B phase.

On the inner peripheral side of the code wheel 133, for example, a rotor (sliding member) 15 made of a material such as polymer polyethylene and having a flat plate ring shape is disposed.
The rotor 15 is disposed at a position sandwiched between a stator 161 (described later) and the rotor 13, and is arranged so that the center of the rotor 15 coincides with the center of the rotor 13. The adhesive layer 14 is fixed to the rotor 13 and rotates in conjunction with the rotation of the rotor 13. That is, the front surface of the rotor 15 is bonded to the rear surface of the first adhesive layer 14 bonded to the rear surface of the front surface portion 131 of the rotor 13, and the rear surface of the rotor 15 is a convex portion of the stator 161. In contact with. The rear surface of the rotor 15 has a high friction coefficient, and rotates in the direction opposite to the direction of the traveling wave generated by the vibration of the stator 161 contacting the rear surface.

As shown in FIG. 6, the first adhesive layer 14 is configured by applying adhesives 142, 142 to both surfaces of a thin film-like substrate 141.
As the base material 141, for example, acrylic foam, nonwoven fabric, nitrile rubber, silicon rubber, ethylene propylene rubber, chloroprene rubber, acrylic rubber, natural rubber, and the like can be suitably used. Since the first adhesive layer 14 is configured to include such a base material 141, the first adhesive layer 14 absorbs vibration caused by sliding of the rotor 15 and the stator 161 when the rotor 13 is started or stopped as a vibration absorbing material. It has become. That is, since vibration is absorbed by the first adhesive layer 14, abnormal noise generated at the time of starting and stopping is suppressed.
As the adhesive 142, for example, a commonly used low-temperature adhesive such as a hot melt adhesive, a thermoplastic resin, an epoxy adhesive, a photo-curing adhesive, or the like can be used.
Although the thickness of the 1st contact bonding layer 14 is suitably set according to the dimension of the whole apparatus, in this embodiment, the 1st contact bonding layer 14 is set to 0.25 mm.

  In addition, a space is formed between the rotor 13 and the support base 18. In this space, a photo interrupter 183 that detects the rotational angular displacement of the code wheel 133 and a drive unit that applies a rotational force to the rotor 13. The control unit 21 that performs overall control of the rotary input device 10, the input / output unit 22 that transmits and receives various signals to and from the main control unit 40, and the like are disposed.

The photo interrupter 183 is a reflective photo interrupter composed of a light emitting element 1831 such as an LED and a light receiving element 1832 such as a photo IC, and is mounted at a position facing the code wheel 133 on the front surface of the PCB substrate 182. The control unit 21 is connected.
The light receiving element 1832 has at least two light receiving surfaces and outputs detection signals of A phase and B phase having a phase difference of 90 degrees from each other.
The photo interrupter 183 detects the amount of rotation and the direction of rotation of the rotor 13 by receiving the reflected light of the light emitted from the light emitting element 1831 toward the code wheel 133 and counting the light, and the detection result Is output to the control unit 21. The control unit 21 outputs the detection result from the photo interrupter 183 to the main control unit 40 via the input / output unit 22, and the main control unit 40 determines the rotation angle of the rotor 13 based on the detection result. Is identified.
Note that the photo interrupter 183 constitutes a rotation detection unit together with the code wheel 133.

  The ultrasonic motor 16 includes, for example, a piezoelectric element 162 serving as a vibrator, a ring-shaped stator (vibrating body) 161, and the like, and is driven according to a control signal from the control unit 21 so that the rotor 13 is pivoted. Rotate around.

The stator 161 is fitted into a ring-shaped concave portion 1811 b formed on the front surface of the pedestal portion 1811 included in the base 181, and is fixed to the base 181 by a flat plate-shaped second adhesive layer 17.
Here, since the second adhesive layer 17 is provided at a position inside the position where the piezoelectric element 162 is provided in the ultrasonic motor 16, the vibration of the piezoelectric element 162 is not hindered (the ultrasonic motor 16). The vibration due to the slip between the rotor 13 and the rotor 15 can be absorbed.
As shown in FIG. 6, the second adhesive layer 17 is configured by applying adhesives 172 and 172 on both surfaces of a thin film-like base material 171. The configuration of the second adhesive layer 17 such as the material and thickness is the same as that of the first adhesive layer 14, and thus the description thereof is omitted.

The front portion of the stator 161 includes a plurality of convex portions arranged along the circumferential direction, and the rear surface of the stator 161 has a plurality of piezoelectric elements that generate vibration energy in response to application of voltage (drive signal). 162 is arranged along the circumferential direction of the stator 161.
In addition, the rotor 15 is disposed in contact with the front surface of the stator 161.

  The piezoelectric element 162 is connected to the control unit 21. When a drive voltage based on a predetermined drive signal is applied from the control unit 21 to the piezoelectric element 162, the entire stator 161 vibrates due to the ultrasonic vibration of the piezoelectric element 162. Thus, the traveling wave is transmitted to the rotor 15 and the rotor 15 rotates. Then, the rotational force of the rotor 15 is transmitted to the rotor 13 so that the rotor 13 rotates. Furthermore, by controlling the drive frequency of the drive voltage applied to the piezoelectric element 162, the magnitude and direction of rotation of the rotor 13 due to ultrasonic vibration of the piezoelectric element 162 can be freely set.

The pressure-sensitive sensor 20 is fixed to each of four locations on the upper side, lower side, left side, and right side of the rear surface of the PCB substrate 182, and is connected to the control unit 21. The four pressure sensors 20 are arranged at equal intervals around the axis of the rotor 13.
Each pressure-sensitive sensor 20 detects that the rotor 13 is pressed in the axial direction (front-rear direction), and outputs the detection result to the control unit 21.
The control unit 21 outputs the detection result from the pressure sensitive sensor 20 to the main control unit 40 via the input / output unit 22. Then, in the main control unit 40, the pressed position of the rotor 13 is specified based on the detection result, and the pressing force at the pressed position of the rotor 13 is calculated.
As the pressure sensor 20, for example, a resistance film type, a diffusion type, a film type, a capacitance type, a mechanical type, or the like can be used.
Moreover, although the structure provided with the four pressure sensors 20 was demonstrated in this embodiment, the number of the pressure sensors 20 is not restricted to four, and if it is two or more, it is arbitrary.

  The rotor 13, the code wheel 133, and the rotor 15 described above are arranged at positions where the rotation center axes are respectively coaxial, and are rotated around the screw 11 serving as a rotation axis fixed to the support base 18. It is like that.

The control unit 21 includes, for example, a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), and the like (all not shown).
The control unit 21 is connected to the main control unit 40 via the input / output unit 22 and outputs signals input from the respective units constituting the rotary input device 10 to the main control unit 40 and the main control unit. In accordance with the control signal input from 40, the operation of each part constituting the rotary input device 10 is centrally controlled.

Specifically, the control unit 21 is connected to a photo interrupter 183 as a rotation detection unit, and in accordance with a control signal input from the main control unit 40 via the input / output unit 22, the light emitting element 1831 of the photo interrupter 183. Is instructed to emit light, and the detection result (detection signal) input from the light receiving element 1832 of the photo interrupter 183 is output to the main control unit 40 via the input / output unit 22. Thereby, in the main control unit 40, the rotation angle of the rotor 13 is specified.
The control unit 21 is connected to the ultrasonic motor 16, and sends a predetermined drive signal to the piezoelectric element 162 of the ultrasonic motor 16 in accordance with a control signal input from the main control unit 40 via the input / output unit 22. Output. Thereby, the rotor 13 rotates around the axis.
The control unit 21 is connected to the pressure sensor 20 and outputs a detection result (detection signal) input from the pressure sensor 20 to the main control unit 40 via the input / output unit 22. Thereby, in the main control part 40, the position where the rotor 13 was pressed and the pressing force when the rotor 13 was pressed are specified.

The input / output unit 22 is connected to the main control unit 40 and outputs a signal input from each unit constituting the rotary input device 10 to the main control unit 40, while controlling a control signal input from the main control unit 40. To the unit 21.
Specifically, the input / output unit 22 carries a signal indicating the rotation position (rotation angle) of the rotor 13 detected by the control unit 21 based on the rotation amount and rotation direction output from the photo interrupter 183. Transmit to the telephone unit 30 side. In addition, the input / output unit 22 performs the rotation operation of the rotor 13 detected by the control unit 21 based on the detection values output from the four pressure sensors 20 arranged on the rear side of the PCB substrate 182. A signal indicating the pressing force and the pressing position is transmitted to the mobile phone unit 30 side.
The signal output from the photo interrupter 183 and each pressure sensor 20 may be configured to be transmitted to the mobile phone unit 30 side as an analog signal without A / D conversion.

Next, the mobile phone unit 30 according to the present embodiment will be described.
As shown in FIG. 2, the mobile phone unit 30 includes an antenna (not shown), a communication unit 31 that transmits and receives radio signals to and from an external device, and a call unit 32 that allows an operator to make a call with a third party. And a display unit 33 that displays various screens on the display screen G, and a main control unit 40 that performs overall control of the entire mobile phone 1.
In addition, since the communication part 31 and the telephone call part 32 for implement | achieving the telephone call function with an external apparatus by a radio signal use a well-known technique, detailed description is abbreviate | omitted.

The display unit 33 includes a display screen G such as an LCD (Liquid Crystal Display), and displays various screens on the display screen G in accordance with instructions from the main control unit 40.
Various screens displayed on the display screen G are switched according to the rotation operation of the rotor 13 by the operator. For example, when a plurality of thumbnail screens are displayed on the display screen G, when the operator rotates the front portion 131 of the rotor 13, the thumbnail screen displayed on the display screen G according to the rotation operation. Are sequentially selected.

  The main control unit 40 includes a main CPU 401, a RAM 402, a ROM 403, and the like, and is connected to the control unit 21 of the rotary input device 10. The main control unit 40 controls each part of the mobile phone unit 30 based on an input operation signal sent from the rotary input device 10.

  The main CPU 401 reads out a processing program stored in the ROM 403 in accordance with input signals input from each part of the mobile phone unit 30 and the rotary input device 10, develops it in the RAM, executes it, and sends a control signal to each part. By outputting, the entire rotary input device is controlled.

  The RAM 402 includes a program storage area for developing various programs executed by the main CPU 401, a data storage area for storing input data, processing results generated when these processing programs are executed, and the like as a work area of the CPU. Used.

  The ROM 403 stores processing programs, data, and the like in advance, and stores various processing programs such as a rotation detection program, a force sense presentation program, and none (not shown).

  The rotation detection program is, for example, a program that causes the main CPU 401 to realize a function of detecting the rotation position (rotation angle) of the rotor 13. Specifically, the main CPU 401 detects a rotation amount and a rotation direction of the rotor 13 by the photo interrupter 183 when the operator performs a rotation operation on the rotor 13 by executing a rotation detection program. Then, based on the detection result, the rotation angle of the rotor 13 is specified.

  The force sense presentation program is, for example, a program that causes the main CPU 401 to realize a function of presenting a force sense to an operator who operates the rotor 13. Specifically, when the rotation position (rotation angle) of the rotor 13 is detected by the execution of the rotation detection program, the main CPU 401 executes the force sense presentation program so that the ultrasonic motor 16 causes the rotor 13 to move to the rotor 13. A rotational force is applied, and a force sense is presented to an operator who operates the rotor 13.

  The rotary input device 10 according to the present embodiment includes the photo interrupter 183, the ultrasonic motor 16, the pressure sensor 20, the control unit 21, the input / output unit 22, and the main control unit 40.

  The control unit 21 is connected to the ultrasonic motor 16, and sends a predetermined drive signal to the piezoelectric element 162 of the ultrasonic motor 16 in accordance with a control signal input from the main control unit 40 via the input / output unit 22. Output. Thereby, the rotor 13 rotates around the axis.

Next, the operation of the mobile phone 1 and the rotary input device 10 of this embodiment will be described.
First, when the operator rotates the rotor 13 of the rotary input device 10, various input operations are performed on the mobile phone 1, and the screen displayed on the display screen G of the display unit 33 is selectively switched. .
Further, a rotational force is applied to the rotor 13 according to the rotation angle of the rotor 13 by the rotation operation, and a force sense is presented to the operator.
At this time, the rotor 15 and the ultrasonic motor 16 are caused by pressure on the rotor 13, a change in temperature, a fluctuation in driving torque (added rotational force) at the time of start and stop, and the like. A change occurs in the contact pressure. Specifically, when the operator applies pressure to the rotor 13 or when the driving torque at the time of starting or stopping (added rotational force) varies, the force in the front-rear direction applied to the rotor 13 Then, the inertial force in the rotational direction of the rotor 13 is not constant, and slip occurs between the rotor 15 and the ultrasonic motor 16.
The cellular phone 1 and the rotary input device 10 according to the present embodiment include the rotor 15 and the ultrasonic motor by the first adhesive layer 14 and the second adhesive layer 17 each including the base materials 141 and 171 made of a vibration absorbing material. Absorbs vibrations caused by sliding with 16 and so on.

  As described above, according to the present embodiment, since the first adhesive layer 14 and the second adhesive layer 17 include the base materials 141 and 171 made of a vibration absorbing material, the rotor 15 and the ultrasonic motor 16 When a slip occurs between the two, the vibration caused by the slip can be absorbed, and the generation of abnormal noise can be reduced. In addition, it is possible to reduce the generation of abnormal noise that occurs when the vibration of the piezoelectric element 162 is transmitted to the rotor 13 and the ultrasonic motor 16 and resonates.

  In the above embodiment, both the first adhesive layer 14 and the second adhesive layer 17 have been described by exemplifying the configuration including the base materials 141 and 171 made of a vibration absorbing material. Only one of the adhesive layer 14 and the second adhesive layer 17 may include a base material made of a vibration absorbing material.

  In the above embodiment, the ultrasonic motor 16 is exemplified as the drive unit that applies the rotational force to the rotor 13. However, the drive unit may have any configuration as long as it is a vibration wave motor that uses resonance. For example, vibration wave motors such as a linear type, a rotary type, a standing wave type, and a traveling wave type can be used.

  Moreover, in the said embodiment, although the mobile telephone was illustrated as an electronic device provided with the rotary input device which concerns on this invention, the rotary input device of this invention is not restricted to a mobile phone, Input operation by a rotary input device is carried out. The present invention can be applied to any electronic device as long as it can be performed. For example, the rotary input device of the present invention may be applied to other portable terminal devices such as a portable audio player and PDA (Personal Digital Assistance), AV equipment such as a television receiver, a personal computer, and the like. The rotary input device may be incorporated in advance in the electronic device, or may be used by being connected to the electronic device as a single external device.

  In the above embodiment, an optical rotation detection unit including an annular code wheel 133 and a photo interrupter 183 is exemplified as the rotation detection unit. However, the rotation detection unit detects the rotation angle of the rotor 13. Any configuration may be used as long as it is. For example, it is possible to use a mechanical type (contact type), a magnetic type, an electrostatic rotation detecting unit that detects a position by changing the capacitance of an electrode, or the like. Further, an absolute type rotary encoder capable of detecting an absolute position in addition to the rotation amount and the rotation direction of the rotor 13 may be used.

[Example]
In this example, the presence or absence of abnormal noise in the following three patterns was evaluated and shown in Table 1. At this time, the first adhesive layer 14 and the second adhesive layer 17 were formed using the materials shown in Table 1. Note that the present invention is not limited to this.
Pattern I: When the vibration absorbing material is provided only on the first adhesive layer 14 Pattern II: When the vibration absorbing material is provided only on the second adhesive layer 17 Pattern III: The first adhesive layer 14 and the second adhesive When vibration absorbing material is provided on both layers 17

（評価）
◎：大変効果あり
○：効果あり
△：少し効果あり
×：効果なし

(Evaluation)
◎: Very effective ○: Effective △: Slightly effective ×: No effect

(result)
From the examples of Table 1, it can be seen that there is an effect when any of acrylic foam, nonwoven fabric, nitrile rubber, silicon rubber, ethylene propylene rubber, chloroprene rubber, acrylic rubber, and natural rubber is used as the vibration absorbing material. Further, if either the first adhesive layer 14 or the second adhesive layer 17 includes a vibration absorbing material made of these materials, it is possible to suppress abnormal noise. I understand.
Further, it can be seen from the comparative example in Table 1 that a material such as a sponge containing air or hard rubber is not suitable.

  Therefore, when the material of the above embodiment is used as the vibration absorbing material, the vibration is absorbed, so that the vibration is not transmitted to the rotor 13 and the support base 18, and abnormal noise is suppressed.

1 Mobile phone (electronic equipment)
DESCRIPTION OF SYMBOLS 10 Rotary input device 13 Rotor 131 Front part 131a Opening part 132 Peripheral surface part 133 Code wheel 14 1st contact bonding layer 141 Base material 142 Adhesive 15 Rotor (sliding member)
16 Ultrasonic motor (drive unit)
161 Stator 162 Piezoelectric Element 17 Second Adhesive Layer 171 Base Material 172 Adhesive 18 Support Base 183 Photointerrupter 20 Pressure Sensor 21 Control Unit 22 Input / Output Unit 30 Mobile Phone Unit 40 Main Control Unit

Claims (5)

A rotor that can rotate around an axis in response to the operator's rotation operation,
A sliding member fixed to the rotor and rotating in conjunction with the rotation of the rotor;
A drive unit that contacts the sliding member and applies a rotational force to the rotor via the sliding member;
A support base for rotatably supporting the rotor;
A first adhesive layer for fixing the rotor and the sliding member;
A second adhesive layer for fixing the drive unit and the support base;
A rotary input device comprising:
At least one of the first adhesive layer and the second adhesive layer includes a base material made of a vibration absorbing material.   2. The rotary input according to claim 1, wherein the base material is made of any one of acrylic foam, non-woven fabric, nitrile rubber, silicon rubber, ethylene propylene rubber, chloroprene rubber, acrylic rubber, and natural rubber. apparatus.   The rotary input device according to claim 1, wherein the drive unit is a vibration wave motor that uses resonance of a vibrator. A rotor that can rotate around an axis in response to the operator's rotation operation,
A sliding member fixed to the rotor and rotating in conjunction with the rotation of the rotor;
A drive unit that contacts the sliding member and applies a rotational force to the rotor via the sliding member;
A support base for rotatably supporting the rotor;
A first adhesive layer for fixing the rotor and the sliding member;
A second adhesive layer for fixing the drive unit and the support base;
A rotary input device comprising:
The first adhesive layer and the second adhesive layer include a base material made of a vibration absorbing material,
The substrate is composed of any one of acrylic foam, non-woven fabric, nitrile rubber, silicon rubber, ethylene propylene rubber, chloroprene rubber, acrylic rubber, natural rubber,
The drive unit is a vibration wave motor that uses resonance of a vibrator,
The rotary input device according to claim 2, wherein the second adhesive layer is provided at a position different from a position where the vibrator is provided in the driving unit.   An electronic apparatus comprising the rotary input device according to claim 1.

Images