Haptic device comprising independent haptic actuators

Abstract

The present invention provides a tactile device (10) including a support (20) configured to support at least one part of a user's body (200); and a plurality of tactile units, and further including a first tactile region (10a) and a second tactile region (10b), each configured to receive a body part (200a) of a first user and a body part (200b) of a second user, respectively. The first tactile region includes a first tactile unit (21) and a first component (20a) of the support, and the second tactile region includes a second tactile unit (22) and a second component (20b) of the support, the second component being adjacent to the first component, the first tactile region and the second tactile region being mechanically and independently arranged adjacent to each other by means of a groove (23) formed in the support.

Description

Technical Field

[0001] This invention generally relates to the field of tactile sensation, and more particularly to tactile devices, also known as tactile feedback devices, configured to present tactile effects on one or more parts of a user's body. Background Technology

[0002] This section of the invention is intended to introduce the reader to various aspects that may relate to aspects of at least one embodiment of the invention described below and / or requested. This discussion should help provide the reader with background information to facilitate a better understanding of the various aspects of the invention.

[0003] In a broad sense, haptic technology refers to any technology that, in addition to visual and audio information, reproduces tactile sensation in a user interface by applying force, vibration, motion, and other senses (such as temperature) to provide information to end users when presenting multimedia content.

[0004] Haptic feedback encompasses a wide range of possible stimulation embodiments and includes tactile haptic technology. Haptic haptic feedback (or tactile effect) refers to sensations such as vibration, friction, or micro-deformation, which can be obtained using a tactile device corresponding to or including an arrangement of one or more tactile actuators. For example, a vibratory tactile effect can be obtained by using tactile actuators such as ERM (eccentric rotating mass), LRA (linear resonant actuator), wide-bandwidth actuators such as VCM (voice coil motor), PZT (piezoelectric actuator), pneumatic actuators, SMA (shape memory alloy) actuators, or EAP (electroactive polymer) actuators.

[0005] Haptic feedback has applications in many fields, such as arcade games and virtual reality systems, to enhance immersion. To experience haptic feedback, one must wear or use one or more haptic devices. When multiple haptic actuators produce multiple haptic feedbacks in close proximity, it is crucial to isolate their individual effects to avoid confusion for the user receiving these haptic responses. In fact, combining multiple haptic actuators can produce uncomfortable and ambiguous haptic feedback, making it impossible for the user to identify the message emitted by a particular actuator. Summary of the Invention

[0006] The following sections present a simplified overview of at least one exemplary embodiment to provide a basic understanding of some aspects of the invention. This overview is not a comprehensive overview of the exemplary embodiments. It is not intended to identify key or essential components of the embodiments. The following overview presents only some aspects of at least one exemplary embodiment in a simplified form, as a premise for a more detailed description provided elsewhere in the document.

[0007] According to a first aspect of the present invention, a tactile device is provided, comprising a support configured to support at least one part of a user's body; and a plurality of tactile units. The tactile device also includes a first tactile area and a second tactile area, each configured to receive body parts of a first user and a second user, respectively. The first tactile region includes a first tactile unit among multiple tactile units and a first component of a support associated with the first tactile unit. The second tactile region includes a second tactile unit among multiple tactile units and a second component of a support associated with the second tactile unit, the second component being adjacent to the first component. The first and second tactile areas are mechanically and independently arranged adjacent to each other by grooves made in the support.

[0008] In an exemplary embodiment, the first tactile region is configured to transmit a first tactile effect presented by the first tactile unit through a first front surface associated with the first tactile unit, the first front surface being configured to receive a body part of the first user, and The second tactile area is configured to transmit a second tactile effect presented by the second tactile unit through a second front surface associated with the second tactile unit, the second front surface being configured to receive a body part of the second user.

[0009] In an exemplary embodiment, the first tactile unit is configured to generate a translational motion along a first main plane corresponding to the intermediate plane of the first front surface, and wherein the second tactile unit is configured to generate a translational motion along a second main plane corresponding to the intermediate plane of the second front surface.

[0010] In a further exemplary embodiment, the first principal plane and the second principal plane are arranged at a defined angle of less than 25 degrees relative to each other.

[0011] In another exemplary embodiment, the groove has a width greater than the sum of the first maximum range of motion of the first tactile actuator in the first plane and the second maximum range of motion of the second tactile actuator in the second plane.

[0012] In another exemplary embodiment, the groove has a first maximum range of motion from the first tactile actuator in the first plane, a second maximum range of motion from the second tactile actuator in the second plane, and a depth determined from the material rigidity of the support.

[0013] In another exemplary embodiment, the groove has a continuous curvature in the profile of the groove in a plane perpendicular to the longitudinal direction of the groove.

[0014] In an exemplary embodiment, the tactile device further includes a cover layer configured to contact and adhere to the user's body, the cover layer covering the first tactile area, the second tactile area, and the groove along the surface of the groove.

[0015] In a further exemplary embodiment, the first tactile unit includes a first tactile actuator and a first sheet assembly, the first tactile actuator being attached to a first surface of the first sheet assembly, and the second tactile unit includes a second tactile actuator and a second sheet assembly, the second tactile actuator being attached to a second surface of the second sheet assembly, wherein the first sheet assembly is linked to a first component on the first surface, and wherein the second sheet assembly is linked to a second component on the second surface.

[0016] In another exemplary embodiment, a first tactile actuator is disposed in a first opening formed in a first component, the first opening having an opening facing outwards from the tactile device, at least a portion of the opening being closed by a first sheet assembly, and The second tactile actuator is disposed in a second opening formed in the second component, the second opening having an opening facing the outside of the tactile device, at least a portion of the opening being closed by a second sheet assembly.

[0017] In a further exemplary embodiment, the body parts of the first user and the second user are each the user's back.

[0018] In an exemplary embodiment, the body parts of the first user and the second user are each the user's legs.

[0019] In another exemplary embodiment, the first tactile unit and the second tactile unit each include a vibration tactile actuator.

[0020] In another exemplary embodiment, the first tactile unit and the second tactile unit are controlled independently.

[0021] In a further exemplary embodiment, the tactile device corresponds to a chair cover including a seat and a backrest, the seat and backrest being attached to each other by means of hinges.

[0022] In an exemplary embodiment, the seat includes a first set of tactile areas, which includes a first tactile area and a second tactile area, with a recess surrounding each tactile area in the first set of tactile areas.

[0023] In another exemplary embodiment, the backrest includes a second set of tactile areas, which includes a first tactile area and a second tactile area, with a groove surrounding each tactile area in the second set of tactile areas.

[0024] In another exemplary embodiment, the first set of tactile areas includes two tactile areas, and the second set of tactile areas includes four tactile areas.

[0025] The specific properties of at least one exemplary embodiment, as well as other objects, advantages, features, and uses of the at least one exemplary embodiment, will become apparent from the following description of the examples in conjunction with the accompanying drawings. Attached Figure Description

[0026] The drawings illustrating exemplary embodiments of the present invention will now be shown by way of example.

[0027] Figure 1 A schematic perspective view of a first tactile device according to at least one exemplary embodiment is shown.

[0028] Figure 2 A schematic perspective view showing a second tactile device according to at least one exemplary embodiment.

[0029] Figure 3 Displaying according to at least one exemplary embodiment Figure 2 A first exploded view of a pair of tactile regions contained in a tactile device.

[0030] Figure 4 Displaying according to at least one exemplary embodiment Figure 3 A first schematic cross-section of a pair of tactile areas.

[0031] Figure 5 Displaying according to at least one exemplary embodiment Figure 2 A second exploded view of a pair of tactile areas contained in a tactile device.

[0032] Figure 6 Displaying according to at least one exemplary embodiment Figure 5 A second schematic cross-section of a pair of tactile areas.

[0033] Figure 7 Displaying according to at least one exemplary embodiment Figure 2 A third schematic cross-sectional view of a pair of tactile areas as part of a tactile device.

[0034] Figure 8 Displaying according to at least one exemplary embodiment Figure 2 A fourth schematic cross-sectional view of a pair of tactile areas, which is part of a tactile device.

[0035] Figure 9 Displaying according to at least one exemplary embodiment Figure 2 Fifth schematic cross-sectional view of a groove in part of a tactile device.

[0036] Similar component symbols can be used to represent similar components in different diagrams. Detailed Implementation

[0037] At least one exemplary embodiment will be described more fully below with reference to the accompanying drawings, in which examples of at least one exemplary embodiment are illustrated. However, the exemplary embodiments may be implemented in many alternative forms and should not be construed as limited to the examples described herein. Therefore, it should be understood that this document is not intended to limit the exemplary embodiments to the specific forms disclosed. Rather, this document is intended to cover all modifications, equivalents, and alternatives that fall within the spirit and scope of the invention.

[0038] At least one aspect generally relates to a tactile device comprising a support configured to support at least one part of a user’s body and a plurality of tactile units, the tactile device further comprising a first tactile region and a second tactile region, each configured to receive a body part of a first user and a body part of a second user, respectively.

[0039] The first tactile region includes a first tactile unit and a first component of the support, and the second tactile region includes a second tactile unit and a second component of the support. The second component is adjacent to the first component. The first and second tactile regions are mechanically and independently arranged adjacent to each other by means of grooves formed in the support.

[0040] Tactile devices, for example, correspond to chairs, seats, backrests, chair covers, seat covers, backrest covers, or tactile vests.

[0041] Other examples of equipment or devices that may correspond to haptic devices include head-mounted display devices (HMDs, see-through glasses), wireless (e.g., Bluetooth®) connected wearable haptic devices, mouse pads, palm rests, wrist rests for mice, wrist rests for keyboards, headphone foam pads, chairs, tables, XR headsets, headphones, wristbands, head and / or lumbar support devices or chairs, haptic suits, or any other device suitable for presenting haptic effects to one or more parts of a user’s body that come into contact with the haptic device.

[0042] The tactile unit includes at least a tactile actuator, which corresponds to a device configured to generate or produce mechanical motion or force from an energy source that may be electric, pneumatic, or hydraulic. The tactile actuator may include a rotary motor (e.g., for a rotary mass actuator, such as an ERM) or a linear motor (e.g., for a linear actuator, such as an LRA).

[0043] Figure 1 A schematic partial perspective view showing an exemplary embodiment of the tactile device.

[0044] according to Figure 1 For example, the tactile device 10 corresponds to a chair cover or chair, such as a gaming chair, theater chair, operator chair, vehicle seat, etc.

[0045] Of course, the tactile device is not limited to chair covers, but extends to any tactile device that includes at least two tactile units, such as tactile vests or suits, chairs, seat covers or back covers (i.e., tactile appliances configured to be arranged on at least a portion of a chair (e.g., the back of the chair) without containing any tactile units).

[0046] The chair cover is shown in perspective and advantageously includes multiple regions or areas (tactile regions 1011, 1012, 1013, 1014, 1015, 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, 1029), wherein two or more of these regions correspond to tactile areas, each tactile area being configured to present one or more tactile effects to at least one body part of the user's body, each body part being stimulated by at least one tactile area among the multiple tactile areas included in the chair cover.

[0047] Depending on the specific instance, one or more of the tactile regions 1011, 1012, 1013, 1014, 1015, 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, and 1029 do not include any tactile units or tactile actuators.

[0048] Tactile areas 1011, 1012, 1013, 1014, 1015, 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, and 1029 may be arranged in different parts or components of the chair cover, each part or component supporting or resting one or more parts of the user's body, such as in the headrest, backrest 102, seat 101, armrests, and / or leg rest.

[0049] according to Figure 1 In the exemplary embodiment shown, the tactile device 10 corresponds to a chair cover including a seat 101 and a backrest 102, which are attached to each other by a hinge 103. The hinge 103 allows the user to easily store the tactile device 10 when not in use and also allows the tactile device to adapt to or adjust to the shape of the chair, wherein the angle between the seat 101 and the backrest 102 changes, for example, from 90 degrees to 180 degrees. Figure 2 As shown, the 180-degree angle allows the haptic device 10 to be used on a sofa or bed, allowing the user to lie on the haptic device 10.

[0050] Seat 101 includes a first set of tactile areas, comprising at least a first tactile area and a second tactile area, wherein a first recess 23a surrounds each tactile area 1011, 1012, 1013, 1014, 1015 within the first set of tactile areas. In this configuration, the body part of a first user stimulated by a first tactile unit included in the first tactile area (such as 1011) and the body part of a second user stimulated by a second tactile unit included in the second tactile area (such as 1012) refers to, for example, the user's legs.

[0051] The backrest 102 includes a second set of tactile areas, comprising at least a first tactile area and a second tactile area (e.g., 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, 1029), wherein a second recess 23b surrounds each tactile area within the second set of tactile areas. In this configuration, the body part of the first user stimulated by the first tactile unit included in the first tactile area and the body part of the second user stimulated by the second tactile unit included in the second tactile area refer to, for example, the user's back.

[0052] according to Figure 1 In the exemplary embodiment shown, the first set of tactile areas includes five tactile areas 1011, 1012, 1013, 1014, and 1015, and the second set of tactile areas includes nine tactile areas 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, and 1029. For example, each tactile area 1011, 1012, 1013, 1014, 1015, 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, and 1029 includes a tactile actuator, such as a vibration actuator, and each tactile actuator is independently controlled, for example, by a tactile engine.

[0053] Five tactile areas 1011, 1012, 1013, 1014, and 1015 in the first group of tactile areas (for example) are configured to receive the lower right thigh, lower left thigh, side of right thigh, side of left thigh, and buttock, respectively.

[0054] The nine tactile areas 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, and 1029 in the second group of tactile areas (for example) are configured to receive the lumbar spine, left rib, right rib, left back vertebra, right back vertebra, left scapula, right scapula, left shoulder, and right shoulder, respectively.

[0055] According to another exemplary embodiment, the tactile device 10 does not include fourteen tactile areas, but includes at least two tactile areas, such as two, three, five, twenty, one hundred or more tactile areas.

[0056] Each tactile actuator contained in tactile areas 1011, 1012, 1013, 1014, 1015, 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, and 1029 is controlled and powered, for example, by a controller arranged in the tactile device 10. The tactile actuator is connected to the controller, for example, via a wired connection (not shown). For example, the controller is connected to a tactile engine (e.g., a computer) via a wired or wireless connection. The controller receives from the tactile engine multiple tactile signals that transmit tactile data (e.g., amplitude and frequency), representing the tactile effect produced by the tactile actuator. The controller controls the tactile actuator based on the received multiple tactile signals.

[0057] According to the first example, a haptic actuator is controlled to generate vibration along an axis contained in a plane that partially follows the front surface of a haptic area including the haptic actuator. The front surface refers to the surface of the haptic area facing the user's body part. For example, the vibration is generated by the translational motion of an inertial movement component of the haptic actuator along this axis. Due to the inertia of the internal motion components of the haptic actuator, the haptic actuator moves and drives the haptic area it occupies.

[0058] Figure 2 A schematic perspective view of a second tactile device according to at least one exemplary embodiment is shown.

[0059] according to Figure 2 In one example, the tactile device 10 corresponds to the chair cover and is shown in a flat or unfolded position.

[0060] The chair cover is shown in perspective and advantageously includes multiple regions or areas (tactile regions 1011, 1012, 1013, 1014, 1015, 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, 1029), two or more of these regions, such as tactile regions 1011, 1012, 1024, 1025, 1028, 1029, corresponding to tactile areas, each tactile area being configured to present one or more tactile effects to at least one body part of the user's body, each body part being stimulated by at least one tactile area among the multiple tactile areas included in the chair cover.

[0061] Tactile areas 1011, 1012, 1024, 1025, 1028, and 1029 may be arranged in different parts or components of the chair cover, each part or component supporting or resting one or more parts of the user's body, such as in seat 101 and backrest 102.

[0062] according to Figure 2 In the exemplary embodiment shown, the tactile device 10 corresponds to a chair cover including a seat 101 and a backrest 102, which are attached to each other by a hinge 103. Figure 1 As illustrated in the specific example, the hinge 103 allows the user to easily store the haptic device 10 when it is not in use, and also allows the haptic device to adapt to or adjust to the shape of the chair, wherein the angle between the seat 101 and the backrest 102 changes, for example, from 90 degrees to 180 degrees, where 180 degrees corresponds to Figure 2 The exemplary embodiment shown.

[0063] According to an exemplary embodiment, the chair cover includes three pairs of tactile areas, each pair including a first tactile area and a second tactile area, wherein a first groove 23a and / or a second groove 23b separates each tactile area in a pair of tactile areas. The first pair of tactile areas includes two tactile areas 1011 and 1012 separated by the first groove 23a, the second pair of tactile areas includes two tactile areas 1024 and 1025 separated by the second groove 23b, and the third pair of tactile areas includes two tactile areas 1028 and 1029 separated by the second groove 23b.

[0064] according to Figure 1 In the exemplary embodiment shown, each tactile region 1011, 1012, 1024, 1025, 1028, and 1029 includes a tactile actuator (such as a vibrating tactile actuator) located therein. Each tactile actuator is linked to a tactile controller located within the tactile device 10, for example, within the thickened portion 104 of the backrest 102. This tactile controller is configured to distribute tactile effects to the various tactile actuators located within the tactile regions 1011, 1012, 1024, 1025, 1028, and 1029 according to control received from a tactile engine (not shown). The tactile controller is, for example, a printed circuit board or motherboard, wired to the tactile actuators and connected to the tactile engine via cable 105 and connector 106. Connector 106 is, for example, a universal jack or a Universal Serial Bus (USB) connector. The cable length includes, for example, between 30 and 120 cm, so that when the haptic device is mounted on a chair, the haptic device 10 can be connected to a haptic engine, a computer, or a game control panel.

[0065] Where necessary, the haptic device 10 includes a human-machine interface, such as a button located on the surface of the backrest 102 and connected to a haptic controller. For example, the interface can activate or deactivate haptic device effects and set the haptic rendering level, i.e., adjust the amplitude of vibrations generated by various haptic actuators.

[0066] Figure 3 A tactile device according to at least one exemplary embodiment is shown (e.g. Figure 2 A first exploded view of a pair of tactile regions contained in the tactile device 10. Figure 4 Show Figure 3 A first schematic cross-section of a pair of tactile areas.

[0067] This pair of tactile areas includes a first tactile area 10a and a second tactile area 10b, which are respectively configured to receive the first body part 200a and the second body part 200b of the user's body 200.

[0068] The body part 200a of the first user and the body part 200b of the second user can be the same body part or different body parts, for example, depending on the type or granularity level of the body model. The body model corresponds to a schematic diagram of the user's body 200.

[0069] Depending on how the user's body 200 is represented or defined through a body model, the first tactile area 10a and the second tactile area 10b can target the same user's body parts or the body parts of two different, potentially complementary users.

[0070] For example, based on a body model, a user's back can be represented by one or more body parts.

[0071] The back can be represented by a single body part called the "back". According to this example, the first tactile area 10a and the second tactile area 10b of the tactile device 10 refer to or are directed at a single and identical body part of the user, namely the back.

[0072] According to another example, the user's back can be represented by two different body parts of the user, namely the "upper back" and the "lower back". According to this other example, the first tactile area 10a and the second tactile area 10b of the tactile device 10 refer to or are for a single and identical body part of the user, namely the upper back, or two different body parts of the user, namely the upper back and the lower back.

[0073] According to a further example, the user's back can be represented by nine different body parts, namely "lumbar spine", "right back spine", "right shoulder", "right rib", "left back spine", "left shoulder", "left rib", "right scapula", and "left scapula". According to this further example, the first tactile area 10a and the second tactile area 10b of the tactile device 10 refer to or target two different body parts, namely "lumbar spine" and "right back spine".

[0074] For example, the tilt angle between the first tactile area and the second tactile area can be selected so that the direction of the effect produced by the first tactile area 10a and the second tactile area 10b is focused toward a specific area of ​​the user's body 200, or so that they can follow the curve of the user's body 200.

[0075] The first tactile region 10a includes a first tactile unit 21 and a first component 20a of the support 20, the first component 20a being associated with the first tactile unit 21. The second tactile region 10b includes a second tactile unit 22 and a second component 20b of the support 20, the second component 20b being associated with the second tactile unit 22. The second component 20b is adjacent to the first component 20a, and the first tactile region 10a and the second tactile region 10b are mechanically and independently arranged adjacent to each other by a groove 23 formed in the support 20. In other words, the first component 20a and the second component 20b belong to the support 20 and are separated by the groove 23.

[0076] according to Figure 2 In the specific example shown related to the tactile device 10, the first tactile region 10a and the second tactile region 10b correspond to two tactile regions arranged side by side in a first set of tactile regions, and the groove 23 corresponds to the first groove 23a. Alternatively, according to another example, it corresponds to two tactile regions arranged side by side in a second set of tactile regions, and the groove 23 corresponds to the second groove 23b. In other words, the first tactile region 10a and the second tactile region 10b are arranged adjacent to each other, and a groove 23 is formed between them.

[0077] The tactile device 10 includes a support 20 configured to support at least one part of a user's body and a plurality of tactile units 21, 22. Each part or component of the tactile device 10 supporting at least one part of the user's body—namely, the headrest, backrest 102, seat 101, and armrests—may include the support 20, which is coated with a material suitable for contact with the user's body(s), such as textiles, natural leather, or synthetic leather. Note that the user's body refers to both exposed parts of the user's body and clothed parts of the user's body.

[0078] Within the meaning of these principles, the material of the support 20 included in the haptic device 10 (referred to as the "material support") corresponds to any highly elastic deformable material suitable for supporting the user's body or a part of the user's body. The material support may deform when in contact with the user's body 200 and may return to its previous or original shape when not in contact with the user's body.

[0079] Support materials (e.g., polyurethane, latex), structures, and / or properties of support materials (e.g., density, elasticity) may vary, for example, between different tactile devices or between different parts of the same tactile device. For instance, the support material used in the backrest of a chair cover may differ from that used in the seat cover because different parts of the user's body exert different pressures on the contact surface area (due to differences in force and surface area).

[0080] Support materials may correspond to foams such as expanded polyurethane, silicone, shape memory foam, adhesive, polyurethane foam, polyvinyl chloride (PVC) foam, polyethylene foam, polystyrene foam, rubber foam (e.g., raw rubber), nitrile butadiene rubber (NBR), ethylene propylene diene monomer (EPDM), or thermoplastic elastomer (TPE) foam. Support 20 may be manufactured, for example, by injection molding or compression molding, placing liquid or stretchable material between the mold plates, or by processing a block of material, for example, removing material from a parallelepiped foam block to form cavities and (multiple) grooves.

[0081] according to Figure 3 and Figure 4 In the exemplary embodiment shown, each tactile unit (21, 22) includes a tactile actuator (210, 220) and a sheet assembly (211, 221). The first tactile unit 21 includes a first tactile actuator 210 and a first sheet assembly 211, and the second tactile unit 22 includes a second tactile actuator 220 and a second sheet assembly 221. Each sheet assembly (211, 221) is configured to contact a body part (200a, 200b) to be stimulated by the first tactile unit 21 and the second tactile unit 22, respectively.

[0082] Thin-film assemblies (211, 221) correspond to an arrangement of one or more layers or sheets, configured to transmit motion or vibration generated by tactile actuators (210, 220) to body parts 200a, 200b, respectively. A first tactile actuator 210 is attached, for example, to a first surface of a first thin-film assembly 211, which faces a body part 200a of a first user, corresponding to a first front surface S1 of a first tactile unit 21. A second tactile actuator 220 is attached, for example, to a second surface of a second thin-film assembly 221, which faces a body part 200b of a second user, corresponding to a second front surface S2 of a second tactile unit 22. A first tactile region 10a is configured to transmit a first tactile effect presented by the first tactile unit 21 through the first front surface S1, which is configured to receive the body part 200a of the first user. The second tactile region 10b is configured to transmit the second tactile effect presented by the second tactile unit 22 through the second front surface S2, which is configured to receive the body part 200b of the second user. The first front surface S1 and the second front surface S2 are made of a defined material and are configured to adhere to the user's body parts (200a, 200b) (e.g., the user's skin or clothing worn by the user). The first sheet assembly 211 and the second sheet assembly 221 each correspond to a plate, for example, serving as an interface between the first tactile actuator 210 and the second tactile actuator 220, which rests against the face or surface of the first sheet assembly 211 and the second sheet assembly 221, respectively, and the body parts 200a and 200b of the first user rest against the opposite face or surface of the first sheet assembly 211 and the second sheet assembly 221, respectively.

[0083] The first sheet component 211 and / or the second sheet component 221 can be of any shape, such as a rectangle, square, circle, ellipse, trapezoid, or polygon, with sharp or rounded corners.

[0084] The first sheet assembly 211 is attached to the upper part of the first component 20a, corresponding to the position closest to the body part 200a of the first user, for example, by adhering or bonding the first side of the first sheet assembly 211 to the front surface of the first component 20a. Similarly, the second sheet assembly 221 is attached to the upper part of the second component 20b, corresponding to the position closest to the body part 200b of the second user, for example, by adhering or bonding the second side of the second sheet assembly 221 to the front surface of the second component 20b.

[0085] In the first instance, each sheet assembly (211, 221) comprises a single material, such as plastic or metal.

[0086] In the second example, each first sheet assembly 211 and second sheet assembly 221 is obtained from multiple layers of material, for example, by co-laminating sheets of different materials or by bonding them together. For example, a structural material forms the lower part of the sheet assembly, while a soft material forms the upper part, designed for contact with a user's body parts. The material of the upper part of the sheet assembly corresponds to, for example, one of the following: silicone, fabric, leather, plastic (e.g., PVC (polyvinyl chloride), PU (polyurethane), or PET (polyethylene terephthalate). This stacking allows for maximizing mechanical coupling with the skin by utilizing the mechanical properties such as the rigidity of the structural material and the surface properties such as the higher friction of the soft material.

[0087] The first tactile actuator 210 and / or the second tactile actuator 220 function to vibrate parts of the user's body using devices such as ERM (eccentric rotating mass), LRA (linear resonant actuator), wide-bandwidth actuators such as VCM (voice coil motor), PZT (piezoelectric actuator), pneumatic actuators, SMA (shape memory alloy) actuators, or EAP (electroactive polymer) actuators. Therefore, the first tactile actuator 210 and the second tactile actuator 220 each correspond to a vibratory tactile actuator.

[0088] In this exemplary embodiment, the tactile actuators (210, 220) are configured to vibrate to generate translational motion along one or both directions contained in a dedicated plane. The first tactile actuator 210 is configured to generate translational motion along a first principal plane P1 corresponding to the intermediate plane of the first front surface S1, and the second tactile actuator 220 is configured to generate translational motion along a second principal plane P2 corresponding to the intermediate plane of the second front surface S2. In this example, the first principal plane P1 and the second principal plane P2 correspond to each other, but in another example, the first principal plane P1 and the second principal plane P2 may be arranged parallel to each other, or inclined relative to each other at a defined angle, for example, at a defined angle of 5 degrees, 10 degrees, or 20 degrees, i.e., less than 25 degrees. Such examples may relate to the use of a covered chair seat, which will have inclined tactile areas, such as a first tactile area configured to receive the lower thigh and a second tactile area configured to receive the same side of the thigh.

[0089] An orthogonal coordinate system X, Y, Z is associated with the tactile device 10. The X and Y axes define the orientation of the first principal plane P1 and the second principal plane P2 (combined here). The profile of the groove 23 is contained in the XZ plane, and the groove extends locally in the Y direction. The first tactile actuator 210 and the second tactile actuator 220 are then configured to produce translational motion along at least the X axis. Because the first sheet assembly 211 and the second sheet assembly 221 are thin and large, they are flexible in the Z-axis direction but nearly rigid along the X and Y axes. The movement of the first tactile actuator 210 and the second tactile actuator 220 causes the first component 20a and the second component 20b to rock, respectively. The upper parts of the first component 20a and the second component 20b move along the X-axis to follow the movement of the first tactile actuator 210 and the second tactile actuator 220. Then, the propagation of these movements of the first component 20a and the second component 20b of the support 20 is prevented by the groove 23. Since there is no material aligned with the groove 23, the upper parts of the first component 20a and the second component 20b can move freely along the X-axis without transmitting this movement from the first component 20a to the second component 20b, and vice versa. It should be noted that the lower parts of the first component 20a and the second component 20b, i.e., the parts opposite the user's body, are fixed because they are also adhered to the structural frame or support, for example, in the case of a chair cover for the tactile device 10. Therefore, the portion of the support 20 forming the base of the groove 23 is stationary, and no movement is transmitted between the first component 20a and the second component 20b.

[0090] To prevent the support 20 from inhibiting the movement of the first tactile actuator 210 and the second tactile actuator 220, a gap is formed between each tactile actuator and the support 20. In this manner, the first tactile actuator 210 is arranged in a first opening 20c formed in the first component 20a, the first opening 20c having an opening facing outwards from the tactile device 10, and thus towards the body part 200a of the first user, at least a portion of which is closed by the first sheet assembly 211. Similarly, the second tactile actuator 220 is arranged in a second opening 20d formed in the second component 20b, the second opening 20d having an opening facing outwards from the tactile device 10, and thus towards the body part 200b of the second user, at least a portion of which is closed by the second sheet assembly 221.

[0091] The distances between the first tactile actuator 210 and the second tactile actuator 220 and the inner surfaces of the first and second cavities, respectively, range from 2 to 40 mm, depending on, for example, the size of the first tactile actuator 210 and / or the second tactile actuator 220. For example, the larger the size of the tactile actuators (210, 220), the larger the size of the oral cavity (20c, 20d), and the greater the distance between the outer surface of the tactile actuators (210, 220) and the inner surface of the oral cavity (20c, 20d).

[0092] The dimensions of the first tactile actuator 210 and / or the second tactile actuator 220, for example, include those between 2x2x2 mm and 45x40x20 mm, depending on, for example, the sensitivity of the body part associated with the tactile actuators (210, 220) that include tactile areas (10a, 10b). For example, the sensitivity of a user's legs or back is lower than that of a user's hands. Tactile effects on the legs or back require tactile actuators of larger size than those for tactile effects on the hands. For example, when a tactile effect is generated on the legs or back, the first tactile actuator 210 and / or the second tactile actuator 220 requires a higher acceleration or a larger displacement amplitude compared to the displacement amplitude felt by the hands.

[0093] The size and / or shape of the oral cavity (20c, 20d) depends on, for example, the size / shape of the tactile actuator (210, 220) installed in the oral cavity (20c, 20d), the position of the tactile unit (21, 22) in the tactile device 10, and / or the type of the tactile device 10.

[0094] The dimensions of the first sheet assembly 211 and the second sheet assembly 221 depend on the dimensions of the openings of the first aperture 20c and the second aperture 20d, respectively. For example, when the first sheet assembly 211 has a rectangular shape (respectively circular), the height of the first sheet assembly 211 (respectively diameter) (along the X-axis) includes, for example, between 10 mm and 40 mm. The thickness of the first sheet assembly 211 depends on, for example, the material of the first sheet assembly 211 and includes, for example, between 0.5 mm and 2 mm.

[0095] Therefore, a tactile effect is generated and applied to the body parts 200a and 200b of the first user, for example, by generating tangential motion at the contact surfaces (first front surface S1 and second front surface S2) between the tactile areas (10a, 10b) and the user's body parts 200a, 200b. Thus, each opening (20c, 20d) can generate maximum tactile effect by avoiding any loss of kinetic energy, and the groove 23 allows the tactile effects generated by the first tactile actuator 210 associated with the first tactile area 10a and the second tactile actuator 220 associated with the second tactile area 10b to be clearly separated. Therefore, by independently controlling the first tactile actuator 210 and the second tactile actuator 220, independent tactile effects can be generated on different user body parts (200a, 200b).

[0096] According to a variant, the first tactile unit 21 and the second tactile unit 22 may further include a housing embedded with the first tactile actuator 210 and the second tactile actuator 220, and the first sheet assembly 211 and the second sheet assembly 221, respectively. The housing has an opening on one side, which is closed by the sheet assembly. The first tactile actuator 210 and the second tactile actuator 220 may be arranged in the housing in such a way that they are spaced from each wall of the housing (i.e., do not contact the walls). The first tactile actuator 210 and the second tactile actuator 220 are respectively fixed to the inner surfaces of the first sheet assembly 211 and the second sheet assembly 221 (the inner surfaces opposite to the outer surfaces that contact the body parts). The first sheet assembly 211 and the second sheet assembly 221 are linked to the housing in a manner that allows them to move relative to the housing.

[0097] Figure 5 The following is illustrated according to at least one exemplary embodiment: Figure 2 A second exploded view of a pair of tactile actuators included in a tactile device.

[0098] Figure 5 The tactile device 10 shown is generally similar to Figure 3 and Figure 4 The tactile device shown. However, it has additional components, as it also includes a cover layer 24 configured to contact and adhere to the user's body 200, the cover layer 24 covering the first tactile area 10a and the second tactile area 10b and the groove 23 along the groove surface.

[0099] The cover layer 24 may, for example, cover the entire tactile device 10 or at least cover the visible portion of the tactile device 10. In another variation, the cover layer 24 covers the functional components of the tactile device 10, namely all tactile areas (10a and 10b) and the recess 23.

[0100] The cover layer 24 may, for example, cover the entire tactile device 10 or at least the visible portion of the tactile device 10. In another variation, the cover layer 24 covers the functional components of the tactile device 10, namely all tactile areas (10a, 10b) and the recess 23. The protective layer improves the appearance and / or comfort of the tactile device 10. In practice, the cover layer 24 may be, for example, a simple fabric that homogenizes the overall appearance of the tactile device 10, or a thick film, such as a shape memory film, that conforms to the shape of the user's body parts 200a, 200b. The thick film provides a softer, more comfortable, and warmer surface for the user's body 200 in contact with the tactile device 10 and prevents the first sheet assembly 211 and the second sheet assembly 221 from protruding and injuring the user.

[0101] According to a first specific embodiment, this cover layer 24 encapsulates at least a portion of the tactile device 10 and is not bonded to any component of the tactile device 10. No movement between the cover layer 24 and the first sheet assembly 211 and the second sheet assembly 221 is ensured by the adhesion between the material constituting the cover layer 24 and the material of the upper surfaces of the first sheet assembly 211 and the second sheet assembly 221 it covers, thus ensuring that pressure is applied by the user's body parts 200a, 200b through the cover layer 24 to the upper surfaces of the first sheet assembly 211 and the second sheet assembly 221.

[0102] In a second specific embodiment, the cover layer 24 encapsulates at least a portion of the tactile device 10 and adheres to the first sheet assembly 211 and the second sheet assembly 221 and the support 20 within the area where the groove 23 is located, thereby perfectly matching the first tactile region 10a and the second tactile region 10b and the groove 23. Because this cover layer 24 is flexible, it partially follows the movement of the sheet assemblies (211, 221), then transmits vibrations from the first tactile unit 21 and the second tactile unit 22 to portions of the first user's body part 200a and the second user's body part 200b that are in contact with the first tactile region 10a and the second tactile region 10b, respectively. Since the groove 23 passes through the cover layer 24, the insulating effect of the groove 23 is preserved.

[0103] Figure 6 The following is illustrated according to at least one exemplary embodiment: Figure 4 A second schematic cross-sectional view of a pair of tactile actuators.

[0104] and Figure 4 Unlike any of the examples shown, the first sheet assembly 211 and the second sheet assembly 221 are not placed on the support 20, but are embedded in the support 20, and each of the first component 20a and the second component 20b has an additional cavity.

[0105] This embedded construction ensures that the surface of each tactile area (10a, 10b) is flat and avoids any protrusion of the first sheet assembly 211 and the second sheet assembly 221. The cover layer 24, made of a single-layer thickness material, is also locally completely flat when applied to the first tactile area 10a and the second tactile area 10b.

[0106] Furthermore, any sliding of the first sheet assembly 211 and the second sheet assembly 221 on the first component 20a and the second component 20b is restricted, thereby improving the service life of the assembly including the sheet assembly and the first component 20a or the second component 20b and, as needed, the cover layer 24.

[0107] Figure 7 The following is illustrated according to at least one exemplary embodiment: Figure 2 A third schematic cross-sectional view of a pair of tactile areas as part of a tactile device.

[0108] Figure 7 The specific embodiments shown correspond to the same as Figure 3 The relevant specific embodiments are combined with the addition of a covering layer 24 to at least the tactile areas (10a, 10b) and the groove 23.

[0109] Covering layer 24 is adhered to support 20 at recess 23, and for example, in the peripheral region of support 20. Covering layer 24 is also adhered to first sheet assembly 211 and second sheet assembly 221, but not partially adhered to first component 20a and second component 20b immediately adjacent to first sheet assembly 211 and second sheet assembly 221. Therefore, if first sheet assembly 211 and second sheet assembly 221 are movable relative to first component 20a and second component 20b, respectively, they can translate freely along the X-axis and Y-axis parallel to the respective principal planes of first sheet assembly 211 and second sheet assembly 221.

[0110] according to Figure 7 In a non-limiting example, a peripheral region of the inner surface of the first sheet assembly 211 rests against an outer peripheral region of the first member 20a, the outer peripheral region surrounding the opening of the first oral cavity 20c. The inner surface of the first sheet assembly 211 is advantageously adapted or configured to slide on the first member 20a when a first tactile actuator 210 attached to the inner surface of the first sheet assembly 211 is actuated and moves the first sheet assembly 211.

[0111] The arrangement of the first tactile actuator 210, the first sheet assembly 211, and the first component 20a is configured to enable the first sheet assembly 211 to move or vibrate (generated by the first tactile actuator 210) while avoiding or minimizing energy transfer from the first sheet assembly 211 to the first component 20a. Furthermore, utilizing the groove effect, this arrangement can optimize or maximize the transmission of vibration from the first tactile actuator 210 to the body part 200a of the first user via the first sheet assembly 211 and the cover layer 24.

[0112] However, the movement of the first sheet assembly 211 is particularly limited by the elasticity of the cover layer 24 adhered to the front surface of the first sheet assembly 211, and due to the elasticity of the cover layer 24, the first sheet assembly 211 tends to return to its original position.

[0113] The same behavior applies to the second sheet assembly 221, which is movable relative to the second member 20b. The inner surface of the second sheet assembly 221 is advantageously adapted or configured to slide on the second member 20b when the second tactile actuator 220, which is attached to the inner surface of the second sheet assembly 221, is actuated and moves the second sheet assembly 221.

[0114] The arrangement of the second tactile actuator 220, the second sheet assembly 221, and the second component 20b is configured to enable the second sheet assembly 221 to move or vibrate (generated by the second tactile actuator 220) while avoiding or minimizing energy transfer from the second sheet assembly 221 to the second component 20b. Furthermore, utilizing the groove effect, this arrangement can optimize or maximize the transmission of vibration from the second tactile actuator 220 to the body part 200b of the second user via the second sheet assembly 221 and the cover layer 24.

[0115] However, the movement of the second sheet assembly 221 is particularly limited by the elasticity of the cover layer 24 adhered to the front surface of the second sheet assembly 221, and due to the elasticity of the cover layer 24, the second sheet assembly 221 tends to return to its original position.

[0116] Figure 8 The following is illustrated according to at least one exemplary embodiment: Figure 2 A fourth schematic cross-sectional view of a pair of tactile areas, which is part of a tactile device.

[0117] exist Figure 8In this particular embodiment shown, the construction of the tactile units (21, 22) differs from that previously shown. The first tactile unit 21 includes a first tactile actuator 210 mounted in a first tactile diffuser 212. This first tactile diffuser 212 allows for a contact surface with the body part 200a of the first user, a contact surface that differs from the generally flat surface previously obtained using sheet assemblies. In fact, the first tactile diffuser 212 can take on any three-dimensional shape, including at least the volume in which the first tactile actuator 210 is located. Similarly, the second tactile unit 22 includes a second tactile actuator 220 mounted in a second tactile diffuser 222. The shapes of the first tactile diffuser 212 and the second tactile diffuser 222 are not necessarily identical, as they are adapted to the body parts 200a and 200b of the first user, respectively, with which they interact.

[0118] In one embodiment, the tactile unit is obtained by a tactile actuator encapsulated in a tactile diffuser. This configuration makes it possible to obtain, for example, a waterproof or even submersible tactile device 10. Thus, the tactile device 10 can be used, for example, in a humid environment, or, if used as a chair cover, can be washed in water.

[0119] If necessary, a covering layer 24 may be applied to the first tactile area 10a and / or the second tactile area 10b and the groove 23, so that the tactile device can benefit from the advantages of the above-described development.

[0120] Figure 9 The following is illustrated according to at least one exemplary embodiment: Figure 2 Fifth schematic cross-sectional view of a groove in part of a tactile device.

[0121] The main function of the groove 23 is to make its first part 20a and second part 20b mechanically independent, so that the tactile effect presented by each tactile area (10a, 10b) is independent.

[0122] To achieve this function, the groove 23 must be wide enough to prevent any collision between a portion of the first tactile region 10a and a portion of the second tactile region 10b. This means that the distance between the two opposite edges 231, 232 of the groove 23 must be sufficiently wide. For example, the groove 23 has a width W that is greater than the sum of the first maximum range of motion of the first tactile actuator 210 in the first principal plane P1 and the second maximum range of motion of the second tactile actuator 220 in the second principal plane P2, for example, the sum of the maximum range of motion of the first tactile actuator 210 along the X-axis and the maximum range of motion of the second tactile actuator 220 along the X-axis. For example, the width W of the groove 23 includes a range between 2 mm and 3 cm.

[0123] The greater the depth D of the groove 23, the stronger the mobility and separation of the first tactile region 10a and the second tactile region 10b. Therefore, the groove 23 is preferred. Nevertheless, sufficient support 20 must be maintained between the first tactile region 10a and the second tactile region 10b to keep the tactile device 10 together to form a sufficiently robust unit. Therefore, the support 20 at the height of the groove must be thick enough to ensure the cohesion of the entire tactile device 10, that is, it cannot be torn, for example, when the user operates the tactile device 10 or when the user uses the tactile device, especially due to the relative movement of the first tactile region 10a and the second tactile region 10b during the use phase. For example, the groove 23 has a depth D, which is measured from the first maximum range of motion of the first tactile actuator 210 in the first principal plane P1, the second maximum range of motion of the second tactile actuator 220 in the second principal plane P2, and the material rigidity of the support 20. For example, the depth D of the groove 23 includes a range between 2 mm and 2 cm.

[0124] If the groove 23 is exposed, i.e. not covered by the covering layer, the groove may have a rectangular or trapezoidal outline.

[0125] As needed, the cover layer 24 covers the tactile area and the groove. To ensure it perfectly conforms to the contour of the groove 23, the groove 23 has, for example, a continuously curved contour. In other words, the contour of the groove 23 has a continuous curvature in a plane perpendicular to the longitudinal direction of the groove (here, the XZ plane perpendicular to the Y-axis). For example, the shape of each corner is rounded. This rounding allows the cover layer 24 to conform to the outer surface of the groove 23.

[0126] exist Figure 9 In the example shown, the groove 23 is symmetrical and follows a rectangular outline. The outline of the groove 23 describes a first curve at the entrance of the groove 23, having a first radius R1. The bottom of the groove 23 is also circular, and the groove outline describes a second curve with a second radius R2. These radii must then be defined so that the cover layer 24 can follow the outer surface of the groove, and in particular, excessive bending of the cover layer 24 should be avoided to prevent cracking.

[0127] Note that if cover layer 24 is used, the depth D and width W of groove 23 must be recalculated. For example, the previously defined width W must be increased by twice the thickness of cover layer 24.

[0128] The presence of the groove 23 in the tactile device 10 also allows the user to easily identify the tactile areas (10a, 10b). For example, the groove 23 can be painted a different color than the tactile areas to make them stand out.

[0129] In summary, this invention describes a tactile device having multiple tactile regions separated by grooves. The various configurations described above make it possible to obtain a tactile device in which each tactile region produces a tactile effect independently of the others. The effectiveness of the produced tactile effect can also be optimized by maximizing the transmission of the amplitude of motion generated by the tactile actuator through the sheet assembly or tactile diffuser. In this way, a high-performance tactile device is provided to the user, capable of producing a variety of pleasant tactile effects at different parts of the user's body.

[0130] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms “a,” “an,” and “described” are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” and / or “containing / including” as used in this specification may specify stated (e.g.) features, components, and / or components, but do not exclude the presence or addition of one or more other features, components, components, and / or groups thereof. Furthermore, when a component is referred to as “responding” or “connected” to another component, it may directly respond to or be connected to the other component, or there may be intermediate components. Conversely, when a component is referred to as “directly responding” or “directly connected” to another component, there are no intermediate components.

[0131] It should be understood that, for example, in the cases of “A / B,” “A and / or B,” and “at least one of A and B,” the use of any of the symbols / terms “ / ,” “and / or,” and “at least one” may be intended to cover selecting only the first listed option (A), or only the second listed option (B), or selecting both options (A and B). As a further example, in the cases of “A, B, and / or C” and “at least one of A, B, and C,” the wording is intended to cover only the selection of the first listed option (A), or only the selection of the second listed option (B), or only the selection of the third listed option (C), or only the first and second listed options (A and B), or only the first and third listed options (A and C), or only the second and third listed options (B and C), or all three options (A, B, and C). This can be extended to as many items as are listed, as will be apparent to those skilled in the art and related fields.

[0132] Various numerical values ​​may be used in this invention. Specific values ​​may be used for illustrative purposes and the aspects described are not limited to these specific values.

[0133] It should be understood that although the terms first, second, etc., may be used herein to describe various components, these components are not limited by these terms. These terms are only used to distinguish one component from another. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component, without departing from the teachings of the invention. There is no implied order between the first component and the second component.

[0134] References to “an exemplary embodiment” or “an exemplary embodiment” or “an implementation” or “implementation”, as well as other variations, are often used to convey that a particular feature, structure, characteristic, etc. (described in relation to an embodiment / implementation) is included in at least one embodiment / implementation. Therefore, the phrases “in an exemplary embodiment” or “in an exemplary embodiment” or “in an implementation” or “in an implementation” appearing throughout the present invention, as well as any other variations, are not necessarily all referenced to the same embodiment.

[0135] Similarly, references to "according to an exemplary embodiment / example / implementation" or "in an exemplary embodiment / example / implementation" and other variations herein are often used to convey that a particular feature, structure, or characteristic (in conjunction with the description of the exemplary embodiment / example / implementation) may be included in at least one exemplary embodiment / example / implementation. Therefore, the expressions "according to an exemplary embodiment / example / implementation" or "in an exemplary embodiment / example / implementation" appearing throughout this specification do not necessarily all refer to the same exemplary embodiment / example / implementation, and individual or alternative exemplary embodiments / examples / implementations are not necessarily mutually exclusive with other exemplary embodiments / examples / implementations.

[0136] The component symbols appearing in the claims are for illustrative purposes only and do not limit the scope of the claims. Although not explicitly described, embodiments / examples and variations of the invention may be employed in any combination or sub-combination.

[0137] Various embodiments have been described. However, it should be understood that various modifications can be made. For example, components of different embodiments can be combined, supplemented, modified, or removed to produce other embodiments. Furthermore, those skilled in the art to which this application pertains will understand that other structures and processes can replace the disclosed structures and processes, and the resulting embodiments will perform at least substantially the same function in at least substantially the same manner to achieve at least substantially the same result as the disclosed embodiments. Therefore, these and other embodiments are contemplated in this invention.

Claims

1. A tactile device (10), comprising: A support (20) configured to support at least one part of the user's body (200); And multiple tactile units, The tactile device (10) further includes a first tactile area (10a) and a second tactile area (10b), each configured to receive a body part (200a) of a first user and a body part (200b) of a second user, respectively. The first tactile area (10a) includes a first tactile unit (21) of the plurality of tactile units and a first component (20a) of the support (20) associated with the first tactile unit (21). The second tactile area (10b) includes a second tactile unit (22) among the plurality of tactile units and a second component (20b) of the support (20) associated with the second tactile unit (22), the second component (20b) being adjacent to the first component (20a). The first tactile area (10a) and the second tactile area (10b) are mechanically and independently arranged adjacent to each other by means of a groove (23) made in the support (20).

2. The tactile device (10) as claimed in claim 1, wherein, The first tactile area (10a) and the second tactile area (10b) are arranged side by side.

3. The tactile device (10) as claimed in claim 1, wherein, The first tactile area (10a) is configured to transmit a first tactile effect presented by the first tactile unit (21) through a first front surface (S1) associated with the first tactile unit (21), the first front surface (S1) being configured to receive a body part (200a) of the first user, and The second tactile area (10b) is configured to transmit a second tactile effect presented by the second tactile unit (22) through a second front surface (S2) associated with the second tactile unit (22), the second front surface (S2) being configured to receive the body part (200b) of the second user.

4. The tactile device (10) as claimed in claim 3, wherein, The first tactile unit (21) is configured to generate a translational motion along a first main plane (P1) corresponding to the middle plane of the first front surface (S1), wherein, The second tactile unit (22) is configured to generate translational motion along a second main plane (P2) corresponding to the middle plane of the second front surface (S2).

5. The tactile device (10) as claimed in claim 4, wherein, The first principal plane (P1) and the second principal plane (P2) are arranged at an angle less than 25 degrees relative to each other.

6. The tactile device (10) as claimed in any one of claims 4 to 5, wherein, The width of the groove (23) is greater than the sum of the first maximum range of motion of the first tactile actuator (210) in the first main plane (P1) and the second maximum range of motion of the second tactile actuator (220) in the second main plane (P2).

7. The tactile device (10) as claimed in any one of claims 4 to 5, wherein, The groove (23) has a first maximum range of motion from the first tactile actuator (210) in the first main plane (P1), a second maximum range of motion from the second tactile actuator (220) in the second main plane (P2), and a depth determined from the material rigidity of the support (20).

8. The tactile device (10) as claimed in any one of claims 1 to 5, wherein, The groove (23) has a continuous curvature in the profile of a plane perpendicular to the longitudinal direction of the groove.

9. The tactile device (10) of claim 8, further comprising a cover layer (24) configured to contact and adhere to the user's body (200), the cover layer (24) covering the first tactile area (10a) and the second tactile area (10b) and the groove (23) along the groove surface.

10. The tactile device (10) as claimed in any one of claims 1 to 9, wherein, The first tactile unit (21) includes a first tactile actuator (210) and a first sheet assembly (211), the first tactile actuator (210) being attached to a first surface of the first sheet assembly (211), and the second tactile unit (22) includes a second tactile actuator (220) and a second sheet assembly (221), the second tactile actuator (220) being attached to a second surface of the second sheet assembly (221). The first sheet assembly (211) is linked to the first component (20a) on the first surface, and the second sheet assembly (221) is linked to the second component (20b) on the second surface.

11. The tactile device (10) as claimed in claim 10, wherein, The first tactile actuator (210) is disposed in a first opening (20c) formed in the first component (20a), the first opening (20c) having an opening facing outwards from the tactile device (10), at least a portion of the opening being closed by the first sheet assembly (211), and The second tactile actuator (220) is disposed in a second opening (20d) formed in the second component (20b), the second opening (20d) having an opening facing the outside of the tactile device (10), at least a portion of the opening being closed by the second sheet assembly (221).

12. The tactile device (10) as claimed in any one of claims 1 to 11, wherein, The body parts of the first user (200a) and the body parts of the second user (200b) are each the user's back.

13. The tactile device (10) as claimed in any one of claims 1 to 11, wherein, The body parts of the first user (200a) and the body parts of the second user (200b) are each the user's legs.

14. The tactile device (10) as claimed in any one of claims 1 to 13, wherein, The first tactile unit (21) and the second tactile unit (22) each include a vibration tactile actuator.

15. The tactile device (10) as claimed in any one of claims 1 to 14, wherein, The first tactile unit (21) and the second tactile unit (22) are controlled independently.

16. The tactile device (10) as claimed in any one of claims 1 to 15, wherein, The tactile device (10) corresponds to a chair cover including a seat and a backrest, which are attached to each other by means of hinges.

17. The tactile device (10) as claimed in claim 16, wherein, The seat includes a first set of tactile areas, the first set of tactile areas including a first tactile area (10a) and a second tactile area (10b), and the groove (23) surrounds each tactile area in the first set of tactile areas.

18. The tactile device (10) as claimed in claim 16, wherein, The backrest includes a second set of tactile areas, which includes the first tactile area (10a) and the second tactile area (10b), and the groove (23) surrounds each tactile area in the second set of tactile areas.

19. The tactile device (10) as claimed in claims 17 and 18, wherein, The first group of tactile areas includes two tactile areas, and the second group of tactile areas includes four tactile areas.

Images