JP2020173696A - Vibration presentation device - Google Patents

Abstract

To provide a vibration presentation device that can quickly attenuate unnecessary vibration after presentation of vibration.SOLUTION: A vibration presentation device 10 comprises: a vibration panel 20 that presents vibration; a voice coil motor 100 as a vibration generation unit that gives vibration to the vibration panel 20; a housing 30 that supports the vibration panel 20; and a vibration attenuation unit 70 that attenuates the vibration of the vibration panel 20. The vibration attenuation unit 70 attenuates the movement in a first direction of the vibration panel 20, and more largely attenuates the movement in a second direction opposite to the first direction. With this configuration, when the vibration panel 20 is driven in an upper direction B (thrust-up direction) to present vibration and present tactile sense to an operator, vibration necessary for presentation of vibration is not easily attenuated, and unnecessary vibration vibrating in a lower direction C after the presentation of vibration can be quickly attenuated.SELECTED DRAWING: Figure 3

Description

The present invention relates to a vibration presenting device.

As a conventional technique, in an automobile haptic feedback device, a vibration presenting device in which the amplitude of generated vibration is attenuated more quickly is known (see, for example, Patent Document 1).

The vibration presenting device of Patent Document 1 includes a touch-sensitive surface, a movable part including at least one vibration actuator for vibrating the touch-sensitive surface, and a fixed part intended to be fixed to an automobile. The haptic feedback device comprises at least one asymmetric damping member disposed between the moving part and the fixed part, the asymmetric damping member causing the vibration generated by the vibrating actuator to be one from the other direction. It is configured to be more dampened in the direction.

Special Table 2017-536627

In the vibration presenting device of Patent Document 1, the first part of the asymmetric damping member is set to be more rigid than the second part of the asymmetric damping member, so that the asymmetric damping member faces the user's finger of the moving part. The displacement toward the fixed part is attenuated more than the displacement. However, the conventional vibration presenting device also has a damping action in the vibration presenting operation. Therefore, there is a demand for a vibration presenting device having excellent damping property that does not inhibit the presented vibration and suppresses residual vibration.

Therefore, an object of the present invention is to provide a vibration presenting device capable of quickly dampening unnecessary vibration after vibration presentation.

[1] In order to achieve the above object, the present invention comprises a vibrating panel that exhibits vibration, a vibration generating portion that applies vibration to the vibrating panel, a housing that supports the vibrating panel, and the vibrating panel. It has a vibration damping unit that damps vibration, and the vibration damping unit damps the movement of the vibration panel in the second direction opposite to the first direction more than the movement of the vibration panel in the first direction. Provided is a vibration presenting device for causing vibration.
[2] The vibration presenting device according to the above [1], wherein the vibration damping portion is set so that the frictional force due to the movement in the second direction is larger than the frictional force due to the movement in the first direction. It may be.
[3] Further, the vibration damping portion is attached to the vibration panel, and a pressure receiving member that receives a contact force from the housing to the vibration panel is formed in a tapered shape in the first or second direction. , The vibration presenting device according to the above [1] or [2] may be used.
[4] Further, the vibration damping portion is attached to the vibration panel so that the pressure receiving member that receives the pressing force from the housing to the vibration panel changes the friction coefficient in the first or second direction. The vibration presenting device according to the above [1] or [2], wherein the surface state is formed, may be used.
[5] Further, the vibration presenting device according to any one of the above [1] to [4], wherein the first direction is a pushing direction of the operation surface of the vibration panel.

According to the present invention, unnecessary vibration after the vibration is presented can be quickly damped.

FIG. 1A is a front view of the vibration presenting device according to the first embodiment of the present invention, and FIG. 1B is above the vibration presenting device seen from the direction A of FIG. 1A. It is a plan view. FIG. 2 is an enlarged detailed view of the vibration damping portion. FIG. 3A is a view corresponding to the front view of FIG. 1A when the vibrating panel is displaced upward by Δ1, and FIG. 3B is a view in which the vibrating panel is displaced downward by Δ2. It is a figure corresponding to the front view of FIG. 1A in the case of displacement. FIG. 4 is a block diagram showing a control block of the vibration presenting device according to the present embodiment. 5 (a) is a signal waveform diagram of the signal Vc shown in FIG. 3, and FIG. 5 (b) is a diagram showing a vibration waveform. FIG. 6 is an explanatory diagram illustrating the action of the vibration damping portion during vibration of FIGS. 1 (a), 3 (a), and (b). FIG. 7A is a front view of the vibration presenting device according to the second embodiment of the present invention, and FIG. 7B is an enlarged view of a pressure receiving member. FIG. 8 is a front view of the vibration presenting device according to the third embodiment of the present invention. FIG. 9 is a front view of the vibration presenting device according to the fourth embodiment of the present invention.

(Embodiment of the present invention)
The vibration presenting device 10 according to the embodiment of the present invention includes a vibration panel 20 that presents vibration, a voice coil motor 100 as a vibration generating unit that applies vibration to the vibration panel 20, and a housing that supports the vibration panel 20. It has 30 and a vibration damping unit 70 that damps the vibration of the vibration panel 20, and the vibration damping unit 70 has a second direction opposite to the movement of the vibration panel 20 in the first direction. It is configured to more dampen directional movements.

In the present embodiment, as shown in FIG. 1A, the first direction is set to the upward direction B (push-up direction) of the operation surface of the vibration panel 20.

In the present embodiment, in the vibration damping unit 70, the frictional force due to the movement in the second direction (downward C) is set to be larger than the frictional force due to the movement in the first direction (upward direction B). Therefore, when the voice coil motor 100 drives the vibration panel 20 in the upward direction B (push-up direction), the vibration damping by the vibration damping unit 70 is small, and when the vibration panel 20 is driven in the downward direction C, the vibration damping is small. The vibration damping by the part 70 is large. Therefore, when the vibration panel 20 is driven in the upward direction B (push-up direction) to present the vibration and the tactile sensation to the operator, the vibration required for the vibration presentation is difficult to attenuate, but the downward C after the vibration presentation. Unnecessary vibrations that vibrate to can be quickly damped.

(Vibration panel 20)
As shown in FIG. 1, the vibrating panel 20 is a plate-like body, and a touch sensor 25, for example, can be attached to the upper surface 20a to form a touch panel. The vibration panel 20 can exhibit vibration by being driven by a voice coil motor 100 as a drive source. For example, when the vibrating panel 20 as a touch panel is touched, the vibrating panel 20 is vibrated in the B direction shown in FIG. 1A, for example, to notify the operator of the touch. In addition, the tactile sensation can be presented to the operator by vibrating the vibration panel 20 with various operations.

When the touch sensor 25 touches the detection surface of the cover with, for example, a part of the operator's body (for example, a finger), the touch sensor 25 detects the position on the touched detection surface. The operator can input characters and symbols by, for example, touching or tracing the detection surface. In addition, this input operation makes it possible to determine the input content and operate the connected electronic device.

As the touch sensor 25, for example, a known touch detection method such as a capacitance method, a resistance film method, an infrared method, or a SAW method can be used. The touch sensor 25 according to the present embodiment is, for example, close or close by detecting a change in the capacitance value when a finger approaches or touches (contacts) the upper surface 20a of the vibration panel 20, which is a detection surface. A capacitive touch sensor that detects the touch position can be used.

A mounting portion 22 is formed on the lower surface 20b of the vibrating panel 20, and the coil 110 of the voice coil motor 100 is mounted and fixed to the mounting portion 22.

Further, a tapered member 71 constituting the vibration damping portion 70 is provided on the lower surface 20b of the vibration panel 20.

Further, as shown in FIGS. 1A and 1B, a hook portion of a pull-in spring 60 for adjusting the initial position (Z = Z ₀ ) of the vibration panel 20 is provided at the corner portion 21 of the vibration panel 20. A locking hole 20c for locking the is formed.

(Case 30)
As shown in FIG. 1A and the like, the housing 30 is a plate-like body, and for example, various materials such as a metal material such as aluminum and a resin can be used. The upper portion 30a of the housing 30 functions as a base on which the magnetic circuit 120 of the voice coil motor 100 and the pressurizing base 73 of the vibration damping portion 70 are placed and fixed. Further, corresponding to the vibration panel 20, a locking hole 30b for locking the hook portion of the pull-in spring 60 is formed in the corner portion 31.

(Pull-in spring 60)
The pull-in spring 60 adjusts the position of the tapered member 71 of the vibration damping portion 70 by applying a tensile force between the vibration panel 20 and the housing 30, and the initial position of the vibration panel 20 (Z = Z ₀ ). It is for adjusting. In the present embodiment, as shown in FIG. 1A and the like, the pull-in spring 60 uses a tension coil spring. As shown in FIG. 1A, the pull-in spring 60 is composed of a coil portion that generates a tensile force and hook portions 60a and 60b formed at both ends thereof. The hook portions 60a and 60b are hooked and locked in the locking holes 20c of the vibrating panel 20 and the locking holes 30b of the housing 30, respectively. As a result, a tensile force is generated between the vibrating panel 20 and the housing 30.

(Vibration damping part 70)
As shown in FIG. 2, the vibration damping portion 70 includes a tapered member 71 as a pressure receiving member that receives a contact force from the housing 30 to the vibration panel 20, and the tapered member 71 is tapered in the first or second direction. Is formed in. That is, the tapered member 71 forming the vibration damping portion 70 from the lower surface 20b of the vibration panel 20 is attached toward the housing 30. The tapered member 71 has a tapered shape in which the width on the vibrating panel 20 side is set to be larger than the width on the housing 30 side.

Pressurized bases 73 are erected on both sides of the tapered member 71 from the housing 30 toward the vibrating panel 20. The pressurizing base 73 is provided with a hole 73a opened on the tapered member 71 side.

The pressurizing member 72 is slidably housed in the hole 73a of the tapered member 71 and is urged toward the tapered member 71 by the pressurizing spring 75.

As shown in FIG. 2, when the taper member 71, the pressurizing member 72, the pressurizing base 73, and the pressurizing spring 75 are assembled, the tapered surface 71a of the tapered member 71 and the pressurizing surface 72a of the pressurizing member 72 are predetermined. It is in contact with the contact force f of. As shown in FIG. 2, the contact force f is generated on two surfaces, and the component force of the contact force 2f in the upward direction B is balanced with the tensile force in the downward direction C by the pull-in spring 60 described above. .. By this balance adjustment, the initial position (Z = Z ₀ ) of the vibration panel 20 shown in FIGS. 1 (a) and 2 can be determined.

When the vibration panel 20 is not driven by the voice coil motor 100 as the vibration generating unit, the vibration panel 20 is in the above initial position (Z = Z ₀ ).

FIG. 3A is a diagram in which the vibrating panel 20 is displaced upward by Δ1 in the upward direction B. When the taper member 71 is also displaced upward by Δ1 from the initial position (Z = Z ₀ ) in the upward direction B, the contact force between the taper member 71 and the pressurizing member 72 is reduced. As a result, the frictional force between the taper member 71 and the pressurizing member 72 is reduced.

FIG. 3B is a diagram in which the vibrating panel 20 is displaced downward C by Δ2. When the taper member 71 is also displaced downward C by Δ2 from the initial position (Z = Z ₀ ) by Δ2 in the downward direction C, the contact force between the taper member 71 and the pressurizing member 72 increases. As a result, the frictional force between the taper member 71 and the pressurizing member 72 increases.

(Voice coil motor 100)
As shown in FIGS. 1 (a) and 1 (b), the voice coil motor 100 as a vibration generating unit is composed of a coil 110 and a magnetic circuit 120. The coil 110 is mounted and fixed on the vibration panel 20 side, and the magnetic circuit 120 is mounted and fixed on the upper portion 30a of the housing 30.

The coil 110 is formed by winding a magnet wire such as an enamel wire into a coil shape only a plurality of times. When the coil 110 is energized, it is driven by the Lorentz force received from the magnetic field H generated by the magnetic circuit 120 according to Fleming's left-hand rule, and becomes a vibration generation source.

The magnetic circuit 120 is composed of a yoke (center yoke 122, relay yoke 124, side yoke 126) and a magnet (permanent magnet) 130. As shown in FIGS. 1A and 1B, the yokes (center yoke 122, relay yoke 124, side yoke 126) are formed in a cylindrical or disk shape, and are made of a soft magnetic material such as soft iron or electromagnetic steel. Is formed by. The magnet (permanent magnet) 130 is attached to the side yoke 126 and generates a magnetic field H between the magnet 130 and the center yoke 122.

The coil 110 is arranged between the magnet 130 and the center yoke 122, and is driven in the B direction shown in FIG. 1A by energizing the coil 110. As a result, the vibrating panel 20 to which the coil 110 is attached and fixed vibrates in the B direction and can exhibit a tactile sensation. Depending on the arrangement relationship between the coil 110 and the magnetic circuit 120 and the direction of the current, it is possible to present vibration in a direction other than the B direction shown in FIG. 1A.

(Control unit 200)
The control unit 200 includes, for example, a CPU (Central Processing Unit) that performs calculations and processing on the acquired data according to a stored program, a RAM (Random Access Memory) that is a semiconductor memory, a ROM (Read Only Memory), and the like. It is a microcomputer that is used. In this ROM, for example, a program for operating the control unit 200 is stored. The RAM is used, for example, as a storage area for temporarily storing a calculation result or the like.

As shown in FIG. 4, the vibration on signal V _S is input to the control unit 200, the drive signal Vd (for example, a pulse signal) is output to the drive circuit 210. The coil 110 is energized by the coil drive signal Vc whose current is amplified by the drive circuit 210. A Lorentz force is generated in the coil 110 due to the magnetic field H and the coil current generated between the magnet 130 and the center yoke 122.

(Vibration presentation operation of vibration presentation device 10)
FIG. 5A is a signal waveform diagram of each signal Vc shown in FIG. 4, and FIG. 5B is a diagram showing a vibration waveform. The vibration presenting device 10 according to the present embodiment is arranged in the vertical vertical direction, and as shown in FIG. 1A and the like, the vibration panel 20 is driven in the upward direction B (pushing direction) to present vibration and tactile sensation. To do.

As shown in FIG. 4, the vibration on signal V _S is input to the control unit 200, based on this, the drive signal Vd (for example, one pulse signal) is output to the drive circuit 210. The coil 110 is energized by the coil drive signal Vc whose current is amplified by the drive circuit 210. As a result, as shown in FIG. 1 (b), the Lorentz force is generated in the coil 110 due to the magnetic field H and the coil current I generated between the magnet 130 and the center yoke 122, and the coil 110 vibrates in the upward direction B. The panel 20 is driven.

A driving force acts from the voice coil motor 100 (vibration generating portion) by the pulse P between t1 and t2 shown in FIG. 5 (a), and the vibration panel 20 has the vibration panel 20 as shown in FIG. 3 (a). It is displaced by Δ1 in the upward direction B. At this time, the frictional force between the tapered member 71 and the pressure member 72 is smaller than the frictional force at the initial position (Z = Z ₀ ). Therefore, between t1 and t2, the vibration of the vibration panel 20 is unlikely to be attenuated.

Here, FIG. 6 is an explanatory diagram illustrating the action of the vibration damping portion during vibration of FIGS. 1 (a), 3 (a), and (b). Between t1 and t2 shown in FIG. 5A, the larger the displacement amount Z, the smaller the frictional force between the taper member 71 and the pressurizing member 72. As a result, the larger the displacement in the upward direction B, the less likely the vibration panel 20 is subjected to damping action and vibration damping action.

Next, since the drive signal is zero between t2 and t3 shown in FIG. 5A, the driving force from the voice coil motor 100 (vibration generating portion) does not act on the vibration panel 20. Therefore, the vibrating panel 20 causes residual vibration. This residual vibration is in the downward direction (−Z direction) between t2 and t3.

As shown in FIG. 3B, the vibrating panel 20 is displaced downward C by Δ2. As shown in FIG. 6, the larger the downward displacement C, the larger the frictional force between the taper member 71 and the pressurizing member 72. As a result, the larger the displacement in the downward direction C, the more easily the vibration panel 20 is subjected to damping action and vibration damping action. As a result, the residual vibration of the vibration panel 20 is quickly damped.

As shown in FIG. 6, when the vibration panel 20 is driven in the upward direction (+ Z direction) by the driving force of the voice coil motor 100 (vibration generating portion), the vibration panel 20 is less susceptible to damping action and vibration damping action, and the vibration panel 20 When it moves in the downward direction (-Z direction), it is susceptible to damping action and vibration damping action.

When the above is illustrated in FIG. 6, when the vibration panel 20 moves in the downward direction (−Z direction), the displacement shown by the damped solid line is larger than the displacement shown by the broken line when the vibration damping portion 70 is not present. That is, when the vibration panel 20 moves in the downward direction (−Z direction), the damping action and the damping action of the vibration damping portion 70 work significantly, so that the first movement is more than the movement in the first direction (upward direction B). The movement in the second direction (downward C) opposite to the direction can be damped more greatly.

(Second Embodiment of the present invention)
FIG. 7A is a front view of the vibration presenting device according to the second embodiment of the present invention, and FIG. 7B is an enlarged view of a pressure receiving member.

In the second embodiment, as shown in FIGS. 7A and 7B, the vibration damping portion 70 includes a pressure receiving member 77 as a pressure receiving member that receives a contact force from the housing 30 to the vibration panel 20. The surface state of the pressure receiving surface 77a of the pressure receiving member 77 is formed so that the friction coefficient changes in the first or second direction. That is, the friction coefficient μ of the pressure receiving member 77 is formed so as to increase as it approaches the vibration panel 20.

Further, as shown in FIG. 7A, the vibration panel 20 is supported by a support member 40 erected from the housing 30.

(Support member 40)
The support member 40 is made of an elastic member such as rubber. The support member 40 may be formed of a viscoelastic member such as viscous silicone rubber or butyl rubber. As shown in FIG. 7A, the support member 40 has a columnar shape, but the shape is not limited to this and the shape can be arbitrarily set. Any shape may be used as long as it is interposed between the vibrating panel 20 and the housing 30 to support the vibrating panel 20.

As shown in FIG. 7A, the upper end portion 40a of the support member 40 is fixed to the lower surface 20b of the vibrating panel 20 by, for example, adhesion or the like. Further, the lower end portion 40b of the support member 40 is fixed to the upper portion 30a of the housing 30 by, for example, adhesion or the like.

As shown in FIG. 7A, the thickness of the support member 40 (the length in the direction between the vibrating panel 20 and the housing 30) is Z ₀ in natural length. As a result, the initial position (Z = Z ₀ ) of the vibration panel 20 is set as in the first embodiment.

Other configurations are the same as those in the first embodiment.

In the second embodiment, the vibration presenting operation of the vibration presenting device 10 is the same as that in the first embodiment. When the vibrating panel 20 is displaced upward B, the frictional force becomes smaller than the frictional force at the initial position (Z = Z ₀ ). Therefore, the vibration of the vibration panel 20 is difficult to be attenuated. On the other hand, when the vibrating panel 20 is displaced downward C, the frictional force becomes larger than the frictional force at the initial position (Z = Z ₀ ).

Therefore, when the vibration panel 20 is driven upward (+ Z direction) by the driving force of the voice coil motor 100 (vibration generating portion), it is less susceptible to damping action and vibration damping action, and the vibration panel 20 is downward (−Z). If it moves in the direction), it is more susceptible to damping and damping effects. As a result, the residual vibration of the vibration panel 20 can be quickly damped.

(Third Embodiment of the present invention)
FIG. 8 is a front view of the vibration presenting device according to the third embodiment of the present invention. In the third embodiment, the piezoelectric actuator 150 is used as the vibration generating unit instead of the voice coil motor 100 as the vibration generating unit used in the second embodiment. The piezoelectric actuator 150 is mounted on the housing 30 and attached to the mounting member 155, and a part 150a (upper portion) of the piezoelectric actuator 150 is attached and fixed in contact with the lower surface 20b of the vibration panel 20. Since the other configurations are the same as those of the second embodiment, the parts of the different configurations will be described below.

The piezoelectric actuator 150 is, for example, a morph-type piezoelectric element including a metal plate and a piezoelectric element. This morph type piezoelectric element is a piezoelectric element having a structure in which a layered or plate-shaped piezoelectric element is bent. The metal plate is formed by using, for example, a conductive metal material such as aluminum, nickel, copper, or iron, an alloy material containing them, or an alloy material such as stainless steel.

As the material of the piezoelectric element, for example, lithium niobate, barium titanate, lead titanate, lead zirconate titanate (PZT), lead metaniobate, polyvinylidene fluoride (PVDF), polylactic acid and the like are used. This piezoelectric element is, for example, a single-layer unimorph type in which a film formed by using the above material is formed on one surface of a metal plate, or a laminate formed by laminating a film formed by using the above material. It is a unimorph type piezoelectric element.

Since the piezoelectric actuator 150 is deformed by tension or compression when a voltage is applied, it can be vibrated by performing a pulse drive as shown in FIG. 5A, and the vibration panel 20 can be presented with vibration. It becomes. The piezoelectric actuator 150 has an effect of being suitable for thinning.

(Fourth Embodiment of the present invention)
FIG. 9 is a front view of the vibration presenting device according to the fourth embodiment of the present invention. In the fourth embodiment, an inertial drive type actuator is used as the vibration generating unit instead of the voice coil motor 100 as the vibration generating unit used in the first embodiment. Since the other configurations are the same as those of the first embodiment, the parts of the different configurations will be described below.

The inertial drive type actuator 160 vibrates the vibrating panel 20 by driving the vibrating panel 20 by utilizing the inertial force generated by the actuator. As shown in FIG. 9, the inertial drive type actuator 160 is attached and fixed in contact with the lower surface 20b of the vibrating panel 20. That is, the inertial drive type actuator 160 as the vibration generating portion is attached to the vibration panel 20 which is the object of vibration, and is not fixed to the housing 30. The inertial drive type actuator 160 has an effect of being suitable for thinning.

(Application example of the vibration presenting device 10 according to the embodiment of the present invention)
When the vibration presenting device 10 according to the present embodiment is an operation input device in which the touch sensor 25 is mounted on the upper surface 20a of the vibration panel 20, for example, it is arranged on the floor console between the driver's seat and the passenger's seat of the vehicle. It can be applied to the input operation while looking at the display unit provided on the instrument panel. Operation The input device is operated to execute an input operation by a pressing operation at a predetermined position, and based on this, remote control of an in-vehicle device such as an air conditioner, a car navigation device, an audio device, or the like becomes possible.

(Effect of Embodiment of the present invention)
The above configuration has the following effects.
(1) The vibration presenting device 10 according to the embodiment of the present invention supports a vibration panel 20 that presents vibration, a voice coil motor 100 as a vibration generating unit that applies vibration to the vibration panel 20, and a vibration panel 20. The housing 30 and the vibration damping unit 70 that damps the vibration of the vibration panel 20 are provided, and the vibration damping unit 70 is opposite to the movement in the first direction of the vibration panel 20. It is configured to more dampen the movement in the second direction. For example, in the vibration damping unit 70, the frictional force due to the movement in the second direction (downward C) is set to be larger than the frictional force due to the movement in the first direction (upward direction B). When the coil motor 100 drives the vibration panel 20 in the upward direction B (push-up direction), the vibration damping by the vibration damping unit 70 is small, and when the vibration panel 20 is driven in the downward direction C, the vibration by the vibration damping unit 70 is small. The damping is large. Therefore, when the operator is presented with vibration and tactile sensation by driving the vibration panel 20 in the upward direction B (pushing direction), the vibration required for the vibration presentation is difficult to be attenuated and vibrates downward C after the vibration is presented. Unnecessary vibration can be quickly damped.
(2) Since unnecessary vibration after the vibration presentation can be quickly dampened, it is possible to realize a touch device capable of presenting a sharp tactile sensation by presenting the vibration when the operator operates the vibration panel 20. ..
(3) As shown in FIGS. 5 (a) and 5 (b), in a touch device capable of presenting a pseudo-tactile sensation by vibration, the damping is increased after half a wavelength without affecting the rising speed and maximum displacement of vibration. A damping structure that quickly stops vibration is possible.
(4) In the third and fourth embodiments, in addition to the effects of the embodiments, a vibration generation source can be used by using a piezoelectric actuator or an inertial drive type actuator. This has the effect of simplifying the configuration and making the device thinner.

Although the embodiment of the present invention has been described above, this embodiment is merely an example and does not limit the invention according to the claims. This novel embodiment can be implemented in various other forms, and various omissions, replacements, changes, etc. can be made without departing from the gist of the present invention. Moreover, not all combinations of features described in the embodiments are essential as means for solving the problems of the invention. Further, the embodiments are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and the equivalent scope thereof.

10 ... Vibration presentation device 20 ... Vibration panel, 20a ... Upper surface, 20b ... Lower surface, 22 ... Mounting part, 25 ... Touch sensor 30 ... Housing, 30a ... Upper part 40 ... Support member, 40a ... Upper end part, 40b ... Lower end part 60 ... Pull-in spring, 60a, 60b ... Hook part 70 ... Vibration damping part, 71 ... Tapered member, 71a ... Tapered surface, 72 ... Pressurized member, 72a ... Pressurized surface, 73 ... Pressurized base, 73a ... Hole part, 75 ... Pressurized spring, 77 ... Pressure receiving member, 77a ... Pressure receiving surface 100 ... Voice coil motor (vibration generating part)
110 ... Coil 120 ... Magnetic circuit, 122 ... Center yoke, 124 ... Relay yoke, 126 ... Side yoke 130 ... Magnet 150 ... Piezoelectric actuator, 155 ... Mounting member 160 ... Inertial drive actuator 200 ... Control unit 210 ... Drive circuit

Claims (5)

A vibrating panel that presents vibration and
A vibration generating part that applies vibration to the vibration panel,
A housing that supports the vibrating panel and
It has a vibration damping part that damps the vibration of the vibration panel,
The vibration damping unit is a vibration presenting device that damps the movement of the vibration panel in the second direction opposite to the first direction more than the movement of the vibration panel in the first direction. The vibration presenting device according to claim 1, wherein the vibration damping unit is set to have a larger frictional force due to the movement in the second direction than a frictional force due to the movement in the first direction. The vibration damping portion is attached to the vibration panel, and a pressure receiving member that receives a contact force from the housing to the vibration panel is formed in a tapered shape in the first or second direction. 2. The vibration presenting device according to 2. The vibration damping portion is attached to the vibration panel, and the surface state of the pressure receiving member that receives the contact force from the housing to the vibration panel is formed so that the friction coefficient changes in the first or second direction. The vibration presenting device according to claim 1 or 2. The vibration presenting device according to any one of claims 1 to 4, wherein the first direction is a pushing direction of an operation surface of the vibration panel.

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