WO2018143020A1

WO2018143020A1 - Tactile-sensation presentation device

Info

Publication number: WO2018143020A1
Application number: PCT/JP2018/002018
Authority: WO
Inventors: 佐藤　邦生; 高井　大輔; 譲川名
Original assignee: アルプス電気株式会社
Priority date: 2017-02-06
Filing date: 2018-01-23
Publication date: 2018-08-09
Also published as: JP2020057031A

Abstract

Provided is a tactile-sensation presentation device comprising: a vibration element that presents vibration information; a temperature presentation element that is provided on the vibration element and that presents temperature information on a tactile-sensation presentation surface; and a holding member that holds an operating body such that the contact between the operating body and the tactile-sensation presentation surface is maintained. The holding member is provided with a vibration attenuation unit that attenuates the vibration information propagated to a portion of the operating body held in the holding member, the portion being other than an operation surface that is in contact with the tactile-sensation presentation surface.

Description

Tactile presentation device

The present invention relates to a tactile sense presentation device that presents temperature / cooling information and vibration information when an operating body such as a finger comes into contact.

Patent Document 1 discloses a device in which a tactile sensation presenting device that generates vibration such as a voice coil or a piezoelectric body, a Peltier element that exhibits temperature sensation, and a sensor that measures skin temperature are placed on a pedestal. . The tactile presentation device and the sensor are directly placed on the pedestal, and the Peltier element is placed on the tactile presentation device. From this configuration, it is said that it is possible to realize a tactile sensation transmission device with higher expressive power by adding not only vibration but also the influence of temperature to the presentation of tactile sensation.

Japanese Patent Laid-Open No. 7-72018

In order to reliably conduct the tactile sensation and the temperature sensation presented in the device described in Patent Document 1, it is conceivable to use a mounting member that covers the finger in order to keep the finger in contact with the device reliably. However, when such a mounting member is used, the tactile sensation and the temperature sensation presented by the device are easily transmitted not only to the belly of the finger in contact with the device but also to other parts of the finger through the mounting member. For this reason, tactile sensations and temperature sensations that are transmitted to parts other than the belly of the finger become noise, making it difficult for the tactile sensation and temperature sensation to be conducted to the finger abdomen to be accurately and quickly transmitted. There was a risk that it would be difficult to present a tactile sensation.

Therefore, the present invention provides a tactile presentation device that can suppress conduction of a tactile sensation to a portion other than the operation surface in contact with the tactile presentation surface of the operation body, and can present a realistic tactile sensation on the operation surface. With the goal.

In order to solve the above problems, a tactile sensation presentation device of the present invention includes a vibration element that presents vibration information, a temperature / cooling presentation element that is provided on the vibration element and presents temperature / cooling information on a tactile sense presentation surface, and a tactile sense presentation. A holding member that holds the operating body so as to maintain a contact state with respect to the surface, and the holding member attenuates vibration information conducted to a held portion other than the operating surface of the operating body that is in contact with the tactile sense display surface. A vibration damping unit is provided.

As a result, the conduction of vibration information to the held portion of the operating body can be suppressed, and the conduction of vibration information can be concentrated on the operation surface. It can be presented in a timely manner.

In the tactile sensation presentation apparatus of the present invention, it is preferable to include a temperature attenuation unit that suppresses conduction of warm / cool information to the held portion.

As a result, the conduction of temperature / cooling information to the held portion of the operating body can be suppressed, and the conduction of the temperature / cooling information can be concentrated on the operation surface. It is possible to present accurately and timely.

In the tactile sense presentation device of the present invention, it is preferable that the holding member is in contact with at least the held portion of the operating body.

Thereby, it is possible to maintain the contact state of the operation surface of the operation body with respect to the tactile sensation display surface, thereby reliably providing the tactile sensation to the operation body.

In the tactile sensation presentation apparatus of the present invention, it is preferable that the vibration damping unit has an elastic material that attenuates vibration information.

Thereby, since conduction of excess vibration information to the held portion of the operating body can be suppressed, vibration information presented to the operating body can be reduced in noise.

In the tactile sensation presentation apparatus of the present invention, it is preferable that the temperature attenuating unit has a heat insulating material that blocks conduction of hot / cold information.

Thereby, since it is possible to suppress conduction of extra temperature / cooling information to the held portion of the operating body, the temperature / cooling information presented to the operating body can be reduced in noise.

In the tactile sense presentation device of the present invention, the holding member is preferably made of a resin material having elasticity and heat insulation.

This prevents the vibration information and the temperature / cooling information from being conducted to the held portion of the operating body, so that a tactile sensation with less noise can be presented to the operating body.

In the tactile sense presentation device of the present invention, it is preferable that the temperature / cooling presentation element is a Peltier element.

This makes it possible to present hot / cold information efficiently.

In the tactile sense presentation device of the present invention, a conductive member is disposed between the Peltier element and the vibration element, and the conductive member conducts heat generated when the Peltier element presents thermal information to the vibration element. It is preferable to include a member and a vibration conducting member that conducts vibration information presented by the vibration element to the Peltier element.

As a result, vibration information from the vibration element can be efficiently transmitted to the surface of the Peltier element, and the heat radiation effect can be enhanced by efficiently conducting heat from the Peltier element to the vibration element. Presentation is possible.

In the tactile sense presentation device of the present invention, it is preferable that the conductive member has adhesiveness and the Peltier element is coupled to the vibration element.

Thereby, the vibration information presented by the vibration element can be reliably transmitted to the Peltier element, and the heat generated by the Peltier element can be efficiently dissipated.

In the tactile sensation presentation apparatus of the present invention, the vibration element preferably includes a metal cover, and the conductive member preferably combines the metal cover and the Peltier element.

This makes it possible to efficiently dissipate the heat generated in the Peltier element.

According to the present invention, it is possible to provide a tactile presentation device that can suppress conduction of a tactile sensation to a portion other than the operation surface that is in contact with the tactile presentation surface, and can present a realistic tactile sensation on the operation surface. Can do.

It is a side view showing a schematic structure of a tactile sense presentation device according to an embodiment of the present invention. It is a top view of the tactile sense presentation apparatus shown in FIG. It is the perspective view which looked at the tactile sense presentation apparatus shown in FIG. 1 from upper direction. It is a side view when a finger | toe is made to contact a contact detection part. It is a functional block diagram of a tactile sense presentation device according to an embodiment of the present invention. It is a perspective view which shows schematic structure of the tactile sense presentation apparatus which concerns on a 1st modification. It is a perspective view which shows schematic structure of the tactile sense presentation apparatus which concerns on a 2nd modification.

Hereinafter, a tactile sense presentation device according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 is a side view showing a schematic configuration of a haptic presentation device 10 according to the present embodiment, FIG. 2 is a plan view of the haptic presentation device 10 shown in FIG. 1, and FIG. 3 shows the haptic presentation device 10 shown in FIG. FIG. 4 is a side view when the finger F is brought into contact with the contact detection unit 24, and FIG. 5 is a functional block diagram of the tactile sense presentation device 10. 1 to 4 show XYZ coordinates as reference coordinates. In the following description, a state in which the lower side is viewed from the upper side in the Z direction may be referred to as a plan view, and the Z direction is a direction orthogonal to the XY plane. In FIG. 2, the

holding members

41, 42, and 43 are indicated by broken lines for convenience of explanation.

As shown in FIG. 1, the tactile sensation presentation apparatus 10 includes a tactile sensation generating unit 20 disposed on a support 30 and, as shown in FIG. 3, three

support members

41, 42, and 43 are provided on the support 30. It has a configuration.

As shown in FIG. 1, the tactile sensation generating unit 20 includes a vibration element 21, a conductive member 22, a Peltier element 23, and a contact detection unit 24. The vibration element 21 is placed on a support 30, and a Peltier element 23 as a temperature / cooling presentation element is placed on the vibration element 21 via a conductive member 22. Furthermore, a contact detection unit 24 as an operation information acquisition unit is provided on the surface 23 a of the Peltier element 23.

The three holding

members

41, 42, and 43 maintain the contact state of the finger that is in contact with the contact detection unit 24 of the tactile sense generation unit 20 due to its elasticity. These holding

members

41, 42, and 43 are sequentially arranged at regular intervals in the longitudinal direction (Y direction in the drawing) of the tactile sensation generating unit 20 having a rectangular shape in plan view. Direction). In the first holding member 41 and the third holding member 43, one

end portions

41A and 43A in the longitudinal direction of the belt-like body are respectively fixed to the side surface 31 of the support 30 by adhesion or the like, and the Z direction It protrudes upward and extends in a curved manner so as to form a space S1 (FIG. 1) between the touch detection unit 24 and the touch detection unit 24. Furthermore, the

tip portions

41B and 43B, which are the other ends, extend to the side surface 32 side facing the side surface 31 in the X direction. Further, the second holding member 42 has one end portion 42A of the belt-like body fixed to the side surface 32, protruding upward in the Z direction, and between the contact detecting unit 24 of the tactile sense generating unit 20 and the second holding member 42. The end 42B, which is the other end, extends to the side surface 31 side so as to form a space S1. The holding

members

41, 42, 43 and the support 30 are fixed by adhesion or the like.

The three holding

members

41, 42, and 43 are made of a material having elasticity and heat insulation, such as a rubber material, a sponge material, a urethane material, or a spring material, and are operated in the space S <b> 1 between the contact detection unit 24. When a person's finger F is inserted, it has an elastic force to press the finger F from the top to the contact detection unit 24 side. As a result, the finger F and the contact detection unit 24 can be reliably brought into contact with each other and maintained in this contact state, and the fine tactile sensation presented on the contact detection unit 24 can be accurately and quickly transmitted to the finger F. It becomes possible to do. Moreover, since the 1st holding member 41 and the 3rd holding member 43, and the 2nd holding member 42 are being fixed to the different side surface of the support body 30, the finger | toe F can be pressed in good balance. Furthermore, since the holding

members

41, 42, 43 are arranged at intervals in the Y direction, it is easy to insert the finger F into the space between the contact detection unit 24 and the feeling of pressure applied to the finger F is provided. Can be reduced.

The shape, number, and arrangement of the holding members are not limited to those shown in FIGS. 1 to 4 as long as they can be held so that the contact state between the finger inserted in the space S1 and the contact detection unit 24 can be maintained.

As shown in FIG. 4, the three holding

members

41, 42, and 43 are in contact with both side surfaces Fs and the upper surface F <b> 1 (outer surface, back surface) of the finger F, while the finger belly (inner surface, palm surface) F <b> 2. There is no contact. Here, the both side surfaces Fs and the upper surface F1 of the finger F are held portions held by the holding

members

41, 42, and 43, and the belly F2 of the finger is in contact with the contact detection unit 24 in the finger as the operating body. It is an operation surface.

The holding

members

41, 42, and 43 have elasticity, and the elasticity attenuates the vibration transmitted from the vibration element 21 to the held part as a vibration damping part. The holding

members

41, 42, and 43 are made of a heat-insulating material, and by the heat insulating properties, the heat transmitted from the Peltier element 23 to the held portion is blocked as a temperature attenuating portion. Here, the holding

members

41, 42, and 43 can be made of a material having low thermal conductivity instead of the heat insulating material as long as the amount of heat transmitted to the held portion can be reduced.

According to such a configuration, the vibration information generated by the vibration element 21 and the heat / cool information generated by the Peltier element 23 are transferred to the side surface Fs and the upper surface F1 of the finger via the holding

members

41, 42, and 43. It becomes difficult to transmit, and vibration information and heat / cool information are concentrated and conducted on the belly F2 of the finger. For this reason, since vibration information and temperature / cooling information are suppressed from being transmitted as noise components from parts other than the finger pad F2, vibration, temperature, or cooling can be accurately, quickly and accurately as set. Conducted to the operation surface, thereby enabling real tactile presentation.

As shown in FIG. 5, the detection result by the contact detection unit 24 is output to the control unit 12, and the control unit 12 sends independent control signals to the vibration element driving circuit 25 and the Peltier element driving circuit 26. Output.

The vibration element 21 includes, for example, a structure in which a vibrator is supported in a freely vibrating manner by an elastic member such as a leaf spring inside a metal case or cover. A coil is wound around the vibrator, and a magnet facing the coil is fixed in the case. When a control signal is given to the vibration element drive circuit 25 from the control unit 12 as the vibration control unit, the vibration element drive circuit 25 gives an alternating current as a drive signal to the coil in the vibration element 21. Thereby, the vibrator of the vibration element 21 vibrates and vibration information can be presented.

When the control unit 12 gives a control signal to the vibration element drive circuit 25, the vibration element drive circuit 25 outputs a drive signal to the vibration element 21 based on the control signal. For example, the frequency, pulse width, and amplitude of the drive pulse can be set as the drive signal, whereby various fine haptics are presented on the surface of the haptic generation unit 20.

Further, the control signal that the control unit 12 gives to the vibration element driving circuit 25 can be changed according to the detection result in the contact detection unit 24.

As the vibration element 21, the vibrator may be formed of a magnet, and a coil facing the vibrator may be fixed in the case. Alternatively, the vibration element 21 may be configured by a piezoelectric element and vibrate according to a control signal from the control unit 12.

The conductive member 22 is an adhesive tape material such as double-sided tape. The conductive member 22 is disposed so as to cover the upper surface of the vibration element 21. The conductive member 22 is fixed on the vibration element 21 by its adhesiveness, and fixes the Peltier element 23 disposed thereon. Thus, the vibration element 21 and the Peltier element 23 are coupled to each other by the conductive member 22.

The conductive member 22 conducts heat generated when the Peltier element 23 presents the heat / cool information to the metal case of the vibration element 21 as a heat conductive member. Furthermore, the conduction member 22 conducts vibration information presented by the vibration element 21 to the Peltier element 23 as a vibration conduction member.

Since the conductive member 22 has adhesiveness and vibration conductivity in this way, the vibration information presented by the vibration element 21 on the surface of the contact detection unit 24 (the upper surface in the Z direction in FIG. 1) passes through the Peltier element 23. It is communicated efficiently. Furthermore, since the conductive member 22 has thermal conductivity, the heat generated by the Peltier element 23 can be diffused by itself, and the vibration element 21 is made of a metal case from the back surface (the lower surface in the Z direction) of the Peltier element 23. Heat can be efficiently conducted and the heat dissipation efficiency can be increased by using a metal case as a heat sink.

The Peltier element 23 as a temperature-cooling presentation element uses, for example, heat transfer of the Peltier effect when a direct current is applied from the Peltier element drive circuit 26 to the joint between two metal plates facing each other in the Z direction. The amount of heat at the surfaces of the two metal plates changes according to the current direction. A current as a drive signal given from the Peltier element drive circuit 26 to the Peltier element 23 is generated based on a control signal given from the control unit 12. By controlling the direction and amount of current applied to the Peltier element 23, it is possible to make the finger touching the Peltier element 23 feel a warm temperature or a cold temperature, and it is possible to present detailed temperature-cooling information.

Here, as the temperature / cooling presentation element, in addition to the Peltier element, a thermoelectric element using the Thomson effect can be used, and instead of the temperature / cooling presentation element, an element that presents warmth information, for example, a heater is used. It can also be used.

As shown in FIG. 1, a contact detection unit 24 is fixed to the surface 23 a of the Peltier element 23. The contact detection unit 24 has a thin structure so that heat of the Peltier element 23 can be transmitted to a finger as an operating body.

The contact detection unit 24 forms a tactile sensation display surface on which the upper surface of the contact detection unit 24 can be touched by a finger as an operating body, and has a resin film substrate affixed on the Peltier element 23. A thin substrate is used for the resin film substrate so as to facilitate heat conduction. The contact detection unit 24 is an electrostatic detection unit, and is a mutual capacitance detection type in which a plurality of electrode layers insulated from each other is provided on the substrate, or a self-capacitance detection in which a single electrode layer is provided on the substrate. It is a type. It is possible to detect that the finger has touched the contact detection unit 24 based on a change in capacitance between the electrode and the finger as the operation body or a change in capacitance between the plurality of electrodes. Further, in the mutual capacitance detection type, it is also possible to detect which coordinate position of the touch detection unit 24 is touched by the finger, and the operation information acquisition unit detects the touch position at every predetermined elapsed time. Operation information including movement can be detected.

As described above, the detection result by the contact detection unit 24 is output to the control unit 12, and based on the detection result, the control unit 12 (1) sends a control signal to the vibration element drive circuit 25 to present vibration information. (2) A control signal is given to the Peltier device driving circuit 26 in order to present the temperature / cooling information. As a result, a tactile sensation including vibration information generated by driving the vibration element 21 and warm / cool information generated by the Peltier element 23 is presented to the finger touching the contact detection unit 24.

When the tactile sensation generating unit 20 is configured to function as a push button, pressing the push button detects that the push button has been pressed by operating a switch or a sensor on the support 30 side. It may be a thing. In this case, since the switch or sensor on the support 30 side functions as a detection unit, the contact detection unit 24 on the surface of the Peltier element 23 may be omitted.

Further, it is preferable to provide a temperature sensor in the contact detection unit 24, measure the surface temperature of the Peltier element 23, and adjust the control signal applied to the Peltier element 23 based on the difference between the measured temperature and the set temperature.

As shown in FIG. 2, in plan view, the region where the contact detection unit 24 is provided, that is, the outer shape of the tactile sensation display surface, substantially matches the contact region A corresponding to the operation surface of the finger as the operation body. Here, the operation surface of the finger is the belly of the finger, and the contact area A corresponds to a range where the belly of the finger contacts the contact detection unit 24. The area where the contact detection unit 24 is provided is most preferably the same in area and outer shape as the contact area A. However, the contact area A may be wider, or the area of the contact detection unit 24 may be larger. You may be wider. However, the area where the finger comes into contact with the contact detection unit 24 is preferably 50% or more.

Next, an example of operation of the tactile presentation device 10 and tactile presentation will be described.

When it is detected that the finger is in contact with the contact detection unit 24, the control unit 12 determines (1) the Peltier element driving circuit 26 to present the temperature / cooling information to the Peltier element 23 according to the detection result. (2) A vibration control signal is given to the vibration element drive circuit 25 in order to cause the vibration element 21 to present vibration information.

In the Peltier element driving circuit 26, a driving signal is generated in accordance with the given temperature / cooling control signal and is supplied to the Peltier element 23. As a result, the amount of heat changes on the surface 23a of the Peltier element 23, whereby the temperature felt by the finger through the contact detection unit 24 is raised and lowered, and the temperature information is presented to the finger.

In the vibration element drive circuit 25, a drive signal is generated according to the given vibration control signal and is given to the vibration element 21. Thereby, vibration is generated in the vibration element 21, and the vibration in the vibration element 21 is given to the finger as vibration information through the conductive member 22, the Peltier element 23, and the contact detection unit 24.

Since it comprised as mentioned above, according to the tactile sense presentation apparatus 10 of the said embodiment, with respect to the finger | toe which contacted the contact detection part 24 as a presentation operation surface, vibration information and temperature information were arbitrarily combined. Since information can be given, a more detailed and complex tactile sensation can be presented. Furthermore, since the finger F is held by the holding

members

41, 42, and 43 having elasticity and heat insulation properties, vibration information and heat / cool information are not easily transmitted to the held portion other than the finger belly F2, Is concentrated and conducted in the stomach F2. Therefore, since vibration, warmth, and coolness are prevented from being transmitted as noise components from parts other than the finger pad F2, the predetermined vibration, warmth, or coolness can be accurately, quickly, and quickly applied to the operation surface. Conducted. Moreover, the vibration conducted to the finger is not released and the heat of the finger is not dissipated. Therefore, a realistic tactile sensation can be presented.

The modified example will be described below.

FIG. 6 is a perspective view showing a schematic configuration of the tactile sense presentation device 50 according to the first modification. Instead of the three belt-

like holding members

41, 42, and 43 as shown in FIGS. 1 to 4, a cylindrical holding member 51 that wraps the tactile sensation generating unit 20 and the support 30 is used as shown in FIG. You can also. The holding member 51 is made of a material having the same elasticity and heat insulation as the holding

members

41, 42, and 43, and the lower part is fixed to the side surfaces 31 and 32 and the bottom surface (not shown) of the support 30 by bonding or the like. Has been. The upper part of the holding member 51 forms a space S2 with the contact detection unit 24 of the tactile sensation generating unit 20, and both end portions 51a in the direction along the longitudinal direction of the tactile sensation generating unit 20 (Y direction in FIG. 6). , 51b are opened. The holding member 51 has elasticity that can expand the space S2 to the outside, and when a finger is inserted into the space S2 while expanding the holding member 51, the holding member 51 is elastically caused to contract. The inserted finger is pressed to the contact detection unit 24 side of the tactile sense generation unit 20, and thereby the contact state between the finger and the contact detection unit 24 is maintained.

In addition, when a plurality of configurations of the tactile sensation generating unit 20, the support body 30, and the holding member 51 as shown in FIG. It can be performed. In this case, when the holding members 51 are coupled to each other like a glove, the operator can easily insert each finger.

Further, one of the both

end portions

51a and 51b may be closed to form a bag shape (sack shape).

FIG. 7 is a perspective view showing a schematic configuration of a tactile sense presentation device 60 according to a second modification. As the holding member, a hook-and-loop holding member 70 as shown in FIG. 7 may be used instead of the holding

members

41, 42, and 43 shown in FIGS. The holding member 70 is fixed to the belt portion 71 disposed so as to extend in the X direction above the contact detection unit 24 of the tactile sense generating unit 20 and the side surface 32 of the support 30 by adhesion or the like. Part 72. The belt portion 71 is made of a material having elasticity and heat insulation, and one end portion 71A in the X direction is fixed to the side surface 31 of the support 30 by adhesion or the like. One of the inner surface 71C of the tip 71B, that is, the other end of the belt 71, that is, the surface on the tactile sensation generating unit 20 side and the outer surface of the holding unit 72 has a hooked region. Has regions raised in a loop shape, and the front end portion 71B of the belt portion 71 and the holding portion 72 are coupled by pressing these regions together. The belt portion 71 forms a space S3 with the contact detection unit 24 of the tactile sense generation unit 20. In the holding member 70, as shown by a broken line, the tip 71B is separated from the holding unit 72 and turned upward so that the finger is inserted into the space S3 and the finger is placed on the contact detection unit 24 of the tactile sense generating unit 20. After the placement, the belt portion 71 is put on the finger, and the tip portion 71B is lowered downward so as to apply a downward force to the finger, so that the inner surface 71C is coupled to the holding portion 72. Thereby, the contact state of the finger with respect to the contact detection unit 24 is maintained based on the elasticity of the belt portion 71 and the coupling force of the surface fastener.

The holding members of the embodiment, the first modified example, and the second modified example are fixed to the support 30. However, if the contact of the finger with respect to the contact detection unit 24 can be secured, the members other than the support 30 For example, the vibration element 21 may be fixed.

Further, the holding member does not necessarily constitute the vibration damping part and the temperature damping part as a whole. For example, the vibration damping part may be provided with elasticity and heat insulation only at a fixed part with respect to the support 30 and / or its periphery. Further, it may function as a temperature attenuation unit.

Furthermore, the temperature attenuating portion may be configured such that a heat insulating material is disposed only on the inner surface of the holding member.

In addition, it is preferable to provide a vibration attenuating portion and a temperature attenuating portion in a range corresponding to a region where vibration is easily felt among the fingers, or to configure the holding member so as to enhance the effect of vibration attenuation and temperature attenuation in this region. . For example, a material having a high effect of vibration attenuation and temperature attenuation is disposed in this region.

In addition, a Peltier element as a warm stimulation part that gives a warm stimulus to make the touched hand or finger (operating body) feel a warm temperature, and a Peltier element as a cold stimulus part that gives a cold stimulus to make a cold temperature feel Are alternately juxtaposed, pain sensation occurs even with a combination of temperature stimuli (20 ° C. and 40 ° C., etc.) that does not cause pain sensation (Thermal Grill Illusion). For example, by presenting a strong thermal stimulus and a cold stimulus of a certain degree or more, such as 4 ° C./s or more, simultaneously from each of the above-described warm stimulus portion and cold stimulus portion, it is possible to generate pain.

Furthermore, the skin temperature (adaptation temperature) of the finger before touching the hot and cold stimulus due to contact with the Peltier element affects the sensation of warmth and coolness (threshold). Here, the adaptation temperature means that when a warm feeling is desired, the higher the temperature of the fingertip that is in contact with the Peltier element, the higher the temperature of the fingertip, the easier to feel the warmth. The lower the temperature, the easier it is to feel cool. In other words, the finger is more likely to feel a warm stimulus as the adaptation temperature is higher, and the finger is more likely to feel a cold stimulus as the adaptation temperature is lower. Therefore, when the skin temperature of the finger is accurately grasped by a temperature detection element (not shown), and the skin temperature is raised or lowered by driving the Peltier element based on the result, the warm and cold stimulus is clearly clarified with a small temperature change. Can be presented. For example, if a fingertip temperature is 32 ° C, the user feels warm when the fingertip temperature is 34 ° C higher by 2 ° C, and 1 ° C when the fingertip temperature is 35 ° C. Feeling "warm" just by high 36 ° C. On the other hand, if the fingertip temperature is 32 ° C, the user feels “cold” if the fingertip temperature is 31 ° C, which is 1 ° C lower, and 0.5 ° C if the fingertip temperature is 29 ° C. It feels “cold” just by setting the temperature to 28.5 ° C.

The present invention has been described above with reference to the above embodiment. However, the present invention is not limited to the above embodiment, and can be improved or changed within the scope of the purpose of the improvement or the idea of the present invention.

As described above, the tactile sensation presenting apparatus according to the present invention is useful in that a realistic tactile sensation can be presented on the operation surface of the operation body.

This application is based on Japanese Patent Application No. 2017-019194 filed on Feb. 6, 2017, the entire contents of which are incorporated herein by reference.

DESCRIPTION OF SYMBOLS 10 Tactile sense presentation apparatus 12 Control part 20 Tactile sense production | generation part 21 Vibration element 22 Conductive member 23 Peltier element 23a Surface 24 Contact detection part 25 Vibration element drive circuit 26 Peltier element drive circuit 30

Support body

31,32

Side surface

41,42,43

Holding member

41A, 42A,

43A End portion

41B, 42B, 43B Tip portion 50 Tactile presentation device 51

Holding member

51a, 51b End portion 60 Tactile presentation device 70 Holding member 71 Belt portion

71A End portion

71B Tip portion

71C Inner surface 72 Holding portion A Contact region F finger (operation body)
F1 upper surface F2 finger belly Fs finger side S1, S2, S3 space

Claims

A vibration element that presents vibration information, a temperature / cooling presentation element that is provided on the vibration element and presents temperature / cooling information on a tactile sense presentation surface, and an operating body is maintained so as to maintain a contact state with the tactile sense presentation surface. A holding member, and the holding member includes a vibration attenuating unit that attenuates the vibration information conducted to the held part other than the operation surface of the operation body, which is in contact with the tactile sense providing surface. Tactile presentation device.
The tactile sense presentation device according to claim 1, further comprising a temperature attenuating unit that suppresses conduction of the temperature / cooling information to the held portion.
The tactile sense presentation device according to claim 1 or 2, wherein the holding member is in contact with at least the held portion of the operation body.
3. The tactile sense presentation device according to claim 1, wherein the vibration attenuating unit includes an elastic material that attenuates the vibration information.
4. The tactile sensation providing apparatus according to claim 2, wherein the temperature attenuating unit includes a heat insulating material that blocks conduction of the temperature / cooling information.
The tactile sensation providing apparatus according to any one of claims 1 to 4, wherein the holding member is made of a resin material having elasticity and heat insulation.
The tactile presentation device according to any one of claims 1 to 6, wherein the temperature-cooling presentation element is a Peltier element.
A conduction member is disposed between the Peltier element and the vibration element, and the conduction member is a heat conduction member that conducts heat generated when the Peltier element presents thermal information to the vibration element. The tactile sensation providing apparatus according to claim 7, further comprising: a vibration conducting member that conducts vibration information presented by the vibration element to the Peltier element.
The tactile sense presentation device according to claim 8, wherein the conductive member has adhesiveness, and the Peltier element is coupled to the vibration element.
10. The tactile sense presentation device according to claim 9, wherein the vibration element includes a metal cover, and the conductive member combines a metal cover and a Peltier element.