JP2020057031A - Tactile presentation device - Google Patents

Abstract

To provide a tactile presentation device capable of suppressing propagation of tactile sensations to a portion of a manipulation object other than a manipulation surface touching a tactile presentation surface, and of providing the manipulation surface with realistic tactile sensations.SOLUTION: A tactile presentation device is provided, comprising a vibratory element for providing vibratory information, a hot/cold indicator element for providing hot/cold information on a tactile presentation surface and disposed on the vibratory element, and a holding member configured to hold a manipulation object to keep the manipulation object in contact with the tactile presentation surface. The holding member has a vibration attenuating portion for attenuating vibratory information propagating to a held portion of the manipulation object other than a manipulation surface touching the tactile presentation surface.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a tactile sensation providing device that presents hot / cold information or vibration information when an operating body such as a finger comes into contact.

  Patent Literature 1 discloses a device in which a tactile sensation providing device that generates a vibration such as a voice coil or a piezoelectric body, a Peltier element that provides a sense of warmth, and a sensor that measures skin temperature are mounted on a pedestal. . The tactile presentation device and the sensor are directly mounted on the pedestal, and the Peltier device is mounted on the tactile presentation device. According to this configuration, it is possible to realize a tactile sensation transmission device with higher expressive power by adding not only vibration but also temperature effects to the presentation of tactile sensation.

JP-A-7-72018

  In order to surely transmit the tactile sensation and the warm sensation presented in the device described in Patent Literature 1, it is conceivable to use a mounting member covering the finger in order to keep the finger in contact with the device. However, when such a mounting member is used, the tactile sensation and the warm sensation presented by the device are likely to be 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, the tactile sensation and the warm sensation transmitted to parts other than the finger pad become noise, and the tactile sensation and the warm sensation to be transmitted to the finger pad become difficult to transmit accurately and quickly. There was a risk that it would be difficult to present a tactile sensation.

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

In order to solve the above-mentioned problem, a tactile presentation device of the present invention includes a vibration element that presents vibration information, a heating / cooling presentation element that is provided on the vibration element, and presents hot / cold information on a tactile presentation surface, and a tactile presentation device. A holding member that holds the operating body so as to maintain a contact state with the surface, wherein the holding member attenuates vibration information that is in contact with the tactile sensation providing surface and is transmitted to a held portion other than the operating surface of the operating body. It is characterized by having a vibration damping unit.
As a result, the transmission of vibration information to the held portion of the operation body can be suppressed, and the transmission of vibration information can be concentrated on the operation surface. It can be presented in a timely manner.

It is preferable that the tactile sensation presentation device of the present invention includes a temperature attenuating unit that suppresses transmission of hot / cold information to the held unit.
Thereby, the transmission of the heating / cooling information to the held portion of the operating body can be suppressed, and the transmission of the heating / cooling information can be concentrated on the operation surface. It can be presented accurately and in a timely manner.

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 tool.
Thereby, the contact state of the operation surface of the operation tool with the tactile sensation presentation surface is maintained, so that the tactile sensation can be reliably presented to the operation tool.

In the tactile sensation presentation device of the present invention, it is preferable that the vibration damping unit has an elastic material that attenuates vibration information.
Thereby, transmission of unnecessary vibration information to the held portion of the operating body can be suppressed, so that the vibration information presented to the operating body can be reduced in noise.

In the tactile sensation presentation device of the present invention, it is preferable that the temperature attenuating section has a heat insulating material that blocks transmission of thermal information.
This can suppress unnecessary transmission of hot / cold information to the held portion of the operating tool, so that the hot / cool information presented to the operating tool 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 suppresses the transmission of the vibration information and the warm / cold information to the held portion of the operating tool, so that a tactile sensation with less noise can be presented to the operating tool.

In the tactile sense presentation device of the present invention, the warm / cold presentation element is preferably a Peltier element.
Thereby, the heating / cooling information can be efficiently presented.

In the tactile sense presentation device of the present invention, a conduction member is disposed between the Peltier element and the vibration element, and the conduction member conducts heat generated when the Peltier element presents warm / cold information to the vibration element. It is preferable to include a member and a vibration conduction member that transmits vibration information presented by the vibration element to the Peltier element.
As a result, the 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 the 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 connected 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 radiated.

In the tactile sensation presentation device of the present invention, it is preferable that the vibration element has a metal cover, and the conductive member couples the metal cover and the Peltier element.
Thereby, the heat generated in the Peltier element can be efficiently radiated.

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

It is a side view showing a schematic structure of a tactile sense presentation device concerning an embodiment of the present invention. It is a top view of the tactile sense presentation device shown in FIG. It is the perspective view which looked at the tactile sense presentation device shown in FIG. 1 from the upper direction. It is a side view at the time of making a finger contact a contact detection part. It is a functional block diagram of a tactile sense presentation device concerning an embodiment of the present invention. It is a perspective view showing the schematic structure of the tactile sense presentation device concerning the 1st modification. It is a perspective view showing the schematic structure of the tactile sense presentation device concerning the 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.
FIG. 1 is a side view showing a schematic configuration of a tactile presentation device 10 according to the present embodiment, FIG. 2 is a plan view of the tactile presentation device 10 shown in FIG. 1, and 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 sense presentation device 10 has a tactile sense generation unit 20 disposed on a support 30 and three support members 41, 42, 43 provided on the support 30 as shown in FIG. 3. The configuration is provided.

  As shown in FIG. 1, the tactile sensation generation unit 20 includes a vibration element 21, a conduction member 22, a Peltier element 23, and a contact detection unit 24. The vibrating element 21 is mounted on a support 30, and a Peltier element 23 as a warm / cold presenting element is mounted on the vibrating element 21 via a conductive member 22. Further, on the surface 23a of the Peltier element 23, a contact detection unit 24 as an operation information acquisition unit is provided.

  The three holding members 41, 42, and 43 maintain the contact state of the finger that has contacted the contact detection unit 24 of the tactile sensation generation unit 20 due to its elasticity. These holding members 41, 42, 43 are 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, and are respectively arranged in the width direction (X in the drawing) of the tactile sensation generating unit 20. 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-shaped body are fixed to the side surface 31 of the support 30 by bonding or the like, respectively, in the Z direction. It is convex upward and curves and extends so as to form a space S1 (FIG. 1) between itself and the contact detection unit 24 of the tactile sense generation unit 20. Further, tip portions 41B and 43B, which are the other ends, extend to the side surface 32 facing the side surface 31 in the X direction. Further, the second holding member 42 has one end 42A of the belt-shaped body fixed to the side surface 32, is convex upward in the Z direction, and has a gap between the second holding member 42 and the contact detection unit 24 of the tactile sense generation unit 20. The tip 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 bonding or the like.

The three holding members 41, 42, 43 are made of a material having elasticity and heat insulation, for example, a rubber material, a sponge material, a urethane material, or a spring material, and operate in the space S <b> 1 between the contact detection unit 24. When the user's finger F is inserted, the finger F has an elastic force to press the finger F from above onto the contact detection unit 24 side. Thereby, the finger F and the contact detection unit 24 can be reliably brought into contact with each other and this contact state can be maintained, and the fine tactile sensation presented on the contact detection unit 24 can be accurately and quickly transmitted to the finger F. It is possible to do. In addition, since the first holding member 41 and the third holding member 43 and the second holding member 42 are fixed to different side surfaces of the support 30, the finger F can be pressed in a well-balanced manner. Furthermore, since the holding members 41, 42, and 43 are arranged at intervals in the Y direction, the finger F can be easily inserted into the space between the contact detection unit 24 and the feeling of pressure given to the finger F can be reduced. 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 the holding members can be held so as to maintain the contact state between the finger inserted into the space S1 and the contact detection unit 24.

  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 F1 (outer surface, back surface) of the finger F, while holding the finger pad (inner surface, palm surface) F2. Not in contact with Here, 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 contacts 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 vibrating element 21 to the held part as a vibration damping unit. The holding members 41, 42, and 43 are made of a material having a heat insulating property, and as the temperature attenuating part, block the heat transmitted from the Peltier element 23 to the held part. Here, as the holding members 41, 42, and 43, a material having low thermal conductivity can be used 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 heating / cooling information generated by the Peltier element 23 are transmitted to the side surface Fs or the upper surface F1 of the finger via the holding members 41, 42, and 43. The vibration information and the heating / cooling information are transmitted to the finger pad F2 in a concentrated manner. For this reason, since the vibration information and the warm / cold information are suppressed from being transmitted as a noise component from a portion other than the finger pad F2, the vibration, the warm feeling or the cold feeling can be accurately, clearly, and quickly performed as set. The tactile sensation is transmitted to the operation surface, thereby enabling a realistic 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 a control signal independent of each other to the vibration element driving circuit 25 and the Peltier element driving circuit 26. Output.

  The vibration element 21 has a configuration in which, for example, a vibrator is supported by a resilient member such as a leaf spring inside a metal case or cover so as to be freely vibrated. A coil is wound around the vibrator, and a magnet facing the coil is fixed in the case. When a control signal is supplied from the control unit 12 as a vibration control unit to the vibration element drive circuit 25, the vibration element drive circuit 25 supplies an alternating current as a drive signal to a coil in the vibration element 21. Accordingly, the vibrator of the vibration element 21 vibrates, and it is possible to present vibration information.

When the control unit 12 provides 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. The drive signal can set, for example, a frequency, a pulse width, and an amplitude of the drive pulse, whereby various fine haptics are presented on the surface of the haptic generator 20.
Further, the control signal given by the control unit 12 to the vibration element drive circuit 25 can be changed according to the detection result of the contact detection unit 24 and the like.

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

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

  The conduction member 22 serves as a heat conduction member and conducts heat generated when the Peltier element 23 presents warm / cold information to the metal case of the vibration element 21. Further, the conduction member 22 functions as a vibration conduction member and transmits vibration information presented by the vibration element 21 to the Peltier element 23.

  Since the conductive member 22 has adhesiveness and vibration conductivity as described above, the vibration information presented by the vibration element 21 is provided on the surface of the contact detection unit 24 via the Peltier element 23 (the upper surface in the Z direction in FIG. 1). Communicated efficiently. Further, since the conductive member 22 has thermal conductivity, the heat generated by the Peltier element 23 can be diffused by itself, and the case (particularly a metal case) of the vibrating element 21 can be formed from the back surface (the lower surface in the Z direction) of the Peltier element 23. The heat can be efficiently conducted, and the heat dissipation efficiency can be increased by using the metal case as a heat sink.

The Peltier element 23 as the heating / cooling presentation element uses, for example, the transfer of heat of the Peltier effect when a DC current is applied from the Peltier element driving circuit 26 to a junction between two metal plates facing each other in the Z direction. And the amount of heat on the surfaces of the two metal plates changes according to the direction of the current. A current as a drive signal provided from the Peltier device drive circuit 26 to the Peltier device 23 is generated based on a control signal provided 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 warm / cool information.
Here, in addition to the Peltier element, a thermoelectric element using the Thomson effect can also be used as the warm / cold presenting element, and an element that presents thermal sensation information, such as a heater, is used instead of the warm / cold presenting element. It can also be used.

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

  The contact detection unit 24 has a top surface that constitutes a tactile presentation surface to which a finger as an operating body can contact, and has a resin film substrate affixed on the Peltier element 23. As the resin film substrate, a thin material is used 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 are provided on the substrate, or a self-capacitance detection in which a single electrode layer is provided on the substrate. Type. A change in the capacitance between the electrode and the finger as the operating body or a change in the capacitance between the plurality of electrodes can detect that the finger has touched the contact detection unit 24. Furthermore, in the mutual capacitance detection type, it is also possible to detect which coordinate position of the contact detection unit 24 is touched by the finger, and the operation information acquisition unit detects the contact position at predetermined time intervals to detect the finger position. 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 the control unit 12 transmits a control signal to the vibration element drive circuit 25 to present (1) vibration information based on the detection result. (2) A control signal is supplied to the Peltier element drive circuit 26 to present the hot / cold information. As a result, a tactile sensation including vibration information generated by driving the vibration element 21 and warm / cold information generated by the Peltier element 23 is presented to the finger touching the contact detection unit 24.

When the tactile sense generation unit 20 is configured to function as a push button, pressing the push button activates a switch or sensor on the support 30 side, and detects that the push button is pressed. It may be something. In this case, since the switch or sensor on the support 30 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 that a temperature sensor is provided in the contact detection unit 24, the surface temperature of the Peltier element 23 is measured, and a control signal given to the Peltier element 23 is adjusted based on a 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 presentation surface substantially matches the contact region A corresponding to the operation surface of the finger as the operation tool. Here, the operation surface of the finger is the antinode of the finger, and the contact area A corresponds to a range where the antinode of the finger contacts the contact detection unit 24. It is most preferable that the area in which the contact detection unit 24 is provided has the same area and outer shape as the contact area A. However, the area of the contact area A may be larger or the area of the contact detection unit 24 may be larger. It may be wider. However, the area where the finger contacts 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 has come into contact with the contact detection unit 24, the control unit 12 responds to (1) the Peltier element drive circuit 26 to cause the Peltier element 23 to present the warm / cold information according to the detection result. (2) A vibration control signal is supplied to the vibration element drive circuit 25 to cause the vibration element 21 to present vibration information.

  In the Peltier device drive circuit 26, a drive signal is generated in accordance with the supplied hot / cold control signal, and supplied to the Peltier device 23. As a result, the amount of heat changes on the surface 23a of the Peltier element 23, whereby the temperature transmitted through the contact detection unit 24 and felt by the finger fluctuates, and warm / cold information is presented to the finger.

  In the vibration element drive circuit 25, a drive signal is generated according to the supplied vibration control signal, and supplied to the vibration element 21. As a result, vibration occurs in the vibration element 21, and the vibration in the vibration element 21 is given to the finger as vibration information via the conduction member 22, the Peltier element 23, and the contact detection unit 24.

  With the configuration described above, according to the tactile sense presentation device 10 of the above-described embodiment, the vibration information and the hot / cold information are arbitrarily combined with the finger that has contacted the contact detection unit 24 as the presentation operation surface. Since information can be given, a finer and more complex tactile sensation can be presented. Further, since the finger F is held by the holding members 41, 42, 43 having elasticity and heat insulation, the vibration information and the hot / cold information are less likely to be transmitted to the held parts other than the belly F2 of the finger. Is concentrated on the belly F2 of the body. Therefore, transmission of vibration, warmth, or coldness as a noise component from portions other than the finger pad F2 is suppressed, so that predetermined vibrations, warmth, or coldness can be accurately, clearly, quickly, and quickly applied to the operation surface. Conducted. In addition, the vibration transmitted to the finger is not released, and the heat of the finger is not dissipated. Therefore, it is possible to present a real tactile sensation.

Hereinafter, modified examples will be described.
FIG. 6 is a perspective view illustrating a schematic configuration of a tactile sense presentation device 50 according to a first modification. Instead of the three band-shaped holding members 41, 42, and 43 as shown in FIGS. 1 to 4, a cylindrical holding member 51 that wraps the tactile sense generator 20 and the support 30 as shown in FIG. 6 is used. 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 portion is fixed to the side surfaces 31, 32 and the bottom surface (not shown) of the support 30 by bonding or the like. Have 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 ends 51a of the tactile generation unit 20 in the direction along the longitudinal direction (Y direction in FIG. 6). , 51b are open. The holding member 51 has elasticity capable of expanding the space S2 to the outside, and when a finger is inserted into the space S2 while pushing and expanding the holding member 51, the elastic force of the holding member 51 contracting, The inserted finger is pressed against the contact detection unit 24 side of the tactile sensation generation unit 20, whereby the contact state between the finger and the contact detection unit 24 is maintained.
In addition, as shown in FIG. 6, a plurality of configurations of the tactile sensation generating unit 20, the support 30, and the holding member 51 are prepared, and when a plurality of fingers of the operator are simultaneously inserted into each of them, more complex and realistic tactile presentation is provided. It can be performed. In this case, when the holding members 51 are connected to each other in a glove shape, the operator can easily insert each finger.
Alternatively, one of the ends 51a and 51b may be closed to form a bag (sack shape).

  FIG. 7 is a perspective view illustrating a schematic configuration of a tactile sense presentation device 60 according to a second modification. As the holding member, a surface fastener-shaped holding member 70 as shown in FIG. 7 can be used instead of the holding members 41, 42, and 43 shown in FIGS. The holding member 70 has a belt portion 71 disposed so as to extend along the X direction above the contact detection portion 24 of the tactile sense generating portion 20 and a holding portion fixed to the side surface 32 of the support 30 by bonding or the like. And a unit 72. The belt portion 71 is made of a material having elasticity and heat insulating properties, and one end 71A in the X direction is fixed to the side surface 31 of the support 30 by bonding or the like. One of the inner surface 71C of the tip portion 71B, which is the other end of the belt portion 71, that is, the surface on the side of the tactile sensation generating portion 20 and the outer surface of the holding portion 72 has a hook-shaped raised area. Has regions raised in a loop shape, and by pressing these regions against each other, the front end portion 71B of the belt portion 71 and the holding portion 72 are joined. The belt section 71 forms a space S3 between the belt section 71 and the contact detection section 24 of the tactile sense generation section 20. In the holding member 70, a finger is inserted into the space S <b> 3 with the distal end portion 71 </ b> B separated from the holding portion 72 and turned upward as shown by a broken line, and the finger is placed on the contact detecting portion 24 of the tactile sense generating portion 20. After placing, the belt portion 71 is put on from above 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 joined to the holding portion 72. Thereby, the contact state of the finger with the contact detection unit 24 is maintained based on the elasticity of the belt 71 and the coupling force of the hook-and-loop fastener.

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

Further, the holding member does not have to constitute the vibration damping portion and the temperature damping portion as a whole. For example, only the portion fixed to the support body 30 and / or the periphery thereof is provided with elasticity and heat insulation so as to have the vibration damping portion. And may function as a temperature attenuator.
Further, as the temperature attenuating section, a configuration in which a heat insulating material is disposed only on the inner surface of the holding member is also possible.
Further, among the fingers, a vibration damping portion and a temperature damping portion may be provided in a range corresponding to a region where vibration is easily felt, or a holding member may be configured so that the effect of vibration damping and temperature damping in this region is enhanced. . For example, a material having a high effect of vibration damping and temperature damping is arranged in this region.

  In addition, a Peltier element as a warm stimulating section for giving a warm stimulus to make a touched hand or finger (operating body) feel a warm temperature, and a Peltier element as a cold stimulating section for giving a cold stimulus to feel a cold temperature Are alternately juxtaposed, a pain sensation occurs even with a combination of temperature stimuli that does not cause pain (such as 20 ° C. and 40 ° C.) (Thermal Gill Illution). For example, a pain sensation can be generated by simultaneously presenting a strong warm stimulus and a cool stimulus of a certain degree or more, such as 4 ° C./s or more, from each of the warm stimulus unit and the cold stimulus unit.

Furthermore, the skin temperature (adaptation temperature) of the finger before the thermal stimulation due to contact with the Peltier element affects the ease (threshold) of feeling warm and cool. Here, the adaptation temperature means that when the user wants to present a sense of warmth, the higher the temperature of the fingertip in contact with the Peltier element, the more easily the user feels the sense of warmth. The lower the temperature, the easier it is to feel a cool sensation. In other words, the higher the adaptation temperature, the easier it is to sense a warm stimulus, and the lower the adaptation temperature, the easier it is to sense a cold stimulus. Therefore, when the skin temperature of the finger is accurately grasped by the temperature detecting element (not shown) and the Peltier element is driven to raise or lower the skin temperature based on the result, the warm / cold stimulus is clarified by a small temperature change. Can be presented. For example, when the user wants to present a feeling of warmth, if the fingertip temperature is 32 ° C., the user feels “warm” when the fingertip temperature is 35 ° C. and 2 ° C. higher, and 1 ° C. when the fingertip temperature is 35 ° C. It feels “warm” just by raising the temperature to 36 ° C. On the other hand, when the user wants to show a cool feeling, if the fingertip temperature is 32 ° C, the user feels “cold” when the fingertip temperature is 31 ° C, which is lower by 1 ° C, and 0.5 ° C if the fingertip temperature is 29 ° C. It feels “cold” just at a low 28.5 ° C.
As described above, the present invention has been described with reference to the above embodiments. However, the present invention is not limited to the above embodiments, and can be improved or changed within the purpose of improvement or the scope of the present invention.

  As described above, the tactile sense presentation device according to the present invention is useful in that a realistic tactile sense presentation can be performed on the operation surface of the operating tool.

DESCRIPTION OF SYMBOLS 10 Tactile sense presentation apparatus 12 Control part 20 Tactile sense 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 31, 32 Side surface 41, 42, 43 Holding member 41A, 42A, 43A End 41B, 42B, 43B End 50 Tactile presentation device 51 Holding member 51a, 51b End 60 Tactile presentation device 70 Holding member 71 Belt 71A End 71B Tip 71C Inner surface 72 Holding A Contact area F finger (operation body)
F1 Upper surface F2 Finger pad Fs Finger side surface S1, S2, S3 Space

Claims (10)

A vibration element that presents vibration information;
A heating / cooling presentation element provided on the vibration element, for presenting heating / cooling information on a tactile sense presentation surface,
A holding member that holds an operating body so as to maintain a contact state with the tactile sense presentation surface,
The tactile sensation providing device, wherein the holding member includes a vibration damping unit that attenuates the vibration information that is in contact with the tactile sensation providing surface and is transmitted to a held part other than the operation surface of the operation tool.   The tactile sensation providing device according to claim 1, further comprising a temperature attenuating unit that suppresses transmission of the thermal information to the held unit.   The tactile sense presentation device according to claim 1, wherein the holding member is in contact with at least the held portion of the operation body.   The tactile sensation providing device according to claim 1, wherein the vibration damping unit includes an elastic material that attenuates the vibration information.   The tactile sensation presentation device according to claim 2, wherein the temperature attenuator includes a heat insulating material that blocks transmission of the thermal information.   The tactile sense presentation device 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 sense presentation device according to any one of claims 1 to 6, wherein the heating / cooling presentation device is a Peltier device. A conductive member is arranged between the Peltier element and the vibration element,
A heat conducting member that conducts heat generated when the Peltier element presents warm / cold information to the vibrating element; and a vibration conducting member that conducts vibration information presented by the vibrating element to the Peltier element. The tactile presentation device according to claim 7, comprising:   The tactile sensation providing device according to claim 8, wherein the conductive member has an adhesive property and couples the Peltier element to the vibration element.   The haptic device according to claim 9, wherein the vibration element includes a metal cover, and the conductive member couples the metal cover and the Peltier element.

Images