JP6498339B1 - Tactile sensation generating apparatus and tactile sensation generating method - Google Patents

Abstract

An object of the present invention is to make it possible to eliminate the generation of a loud impact sound.
The tactile sensation generating device includes a vibration generating device disposed on a back surface side of a vibration member.
The vibration generating device 4 is a solenoid 23 having a movable iron core 21 that can move close to and away from the vibration member 3 and a coil 22 that presses the movable iron core 21 against the vibration member 3 by energization.
A contact means 24 capable of placing the movable iron core 21 in contact with the back surface 3a of the vibration member 3 before vibration is generated is provided.
[Selection] Figure 5

Description

  The present invention relates to a tactile sensation generating apparatus and a tactile sensation generating method.

  For example, some electronic devices have a tactile sensation generating device in an input unit. The tactile sensation generating device is a device in which a vibration generating device is installed on the back side of the vibration member. When the surface of the vibration member is touched, the vibration generating device installed on the back side of the vibration member is used to vibrate the vibration member. By generating the vibration, the vibration can be felt as a tactile sensation. Thereby, by providing a tactile sensation generating device in an input unit such as a switch, it is possible to give an actual feeling (operation feeling) to an operation on the input unit (for example, see Patent Document 1).

JP2015-215830A

  However, the tactile sensation generating device has a problem in that a large impact sound is generated because vibration is generated by directly striking the vibration member with a vibration generating device.

In order to solve the above problems, the present invention provides:
In the tactile sensation generating device in which a vibration generating device is installed on the back side of the vibration member,
The vibration generating device is a solenoid having a movable iron core that can move close to and away from the vibrating member, and a coil that displaces the movable iron core toward the vibrating member when energized,
A contact means is provided which is capable of placing the movable iron core in contact with the back surface of the vibration member before vibration is generated.

In order to solve the above problems, the present invention provides:
In the tactile sensation generating device in which a vibration generating device is installed on the back side of the vibration member,
The vibration generating device is capable of moving toward and away from the vibrating member, and displaces the movable iron core toward the vibrating member by energization to press and deform the vibrating member, and the movable by stopping energization. characterized in that it is a solenoid having a coil Ru is vibrated by the elastic restoring force of the vibration member the core is separated recoil from the vibrating member.

1 is an overall perspective view of an interior product of a vehicle to which a tactile sensation generating device according to an embodiment is applied. It is the elements on larger scale of FIG. It is a longitudinal cross-sectional view of a tactile sensation generator (non-energized: standby state). It is a longitudinal cross-sectional view of a tactile sensation generator (energization: operating state). It is a longitudinal cross-sectional view of a tactile sensation generator (non-energized: operating state). It is a longitudinal cross-sectional view of the tactile sensation generating device showing a state where a vibration member is removed. It is a longitudinal cross-sectional view of the modification of a tactile sensation generator.

Hereinafter, the present embodiment will be described in detail with reference to the drawings.
1 to 7 are for explaining this embodiment.

  <Configuration> The configuration of this embodiment will be described below.

  The tactile sensation generating device 1 according to this embodiment is applied to, for example, an interior part 2 of a vehicle in a state as shown in FIGS.

  Then, as shown in FIG. 3 (to FIG. 5), it is assumed that the tactile sensation generating device 1 is provided with a vibration generating device 4 on the back surface 3 a side of the vibration member 3.

  Here, the tactile sensation generating device 1 is a device that artificially generates a tactile sensation. The tactile sensation generating device 1 makes the finger feel the vibration of the vibration member 3 as a tactile sensation when the finger touches the surface 3b of the vibration member 3.

  The vibration member 3 is a member provided to generate a tactile sensation by vibration. The vibration member 3 is preferably a member (planar member) having a required surface shape so that a touch surface (surface 3b) exists. The vibration member 3 itself may constitute one article, or may be attached to the surface side of the article to constitute a part of the article, for example. The back surface 3a of the vibration member 3 is preferably a hidden surface so that the vibration generating device 4 cannot be directly seen from the outside.

  The vibration member 3 is preferably composed of a member that easily vibrates. Moreover, it is preferable to install the vibration member 3 in a state in which it can easily vibrate. And it is preferable to install the vibration generating device 4 in the site | part which the vibration member 3 tends to vibrate. For example, the vibration member 3 is a portion where the fixed point with respect to the article or an external member and its periphery are difficult to vibrate, and a position away from the fixed point is a portion that is easy to vibrate. Therefore, it is preferable that the vibration generating device 4 is installed at a position away from the fixed point of the vibration member 3 in order to easily vibrate the vibration member 3 by the vibration generating device 4. Therefore, the vibration generating device 4 is preferably installed at, for example, an intermediate portion between the plurality of fixed points.

  The vibration generating device 4 is an actuator formed for generating vibration in the vibration member 3. One or a plurality of vibration generating devices 4 are provided for a portion of the vibration member 3 where vibration is to be generated. The vibration member 3 may generate vibration at one location or multiple locations. The vibration generating device 4 may be directly fixed to the back surface 3a of the vibration member 3, or may be fixed to an article to which the vibration member 3 is attached or an external member so as to face the back surface 3a of the vibration member 3. May be installed.

  When the vibration generating device 4 is directly fixed to the back surface 3a of the vibration member 3, the vibration member 3 is less likely to vibrate because the portion where the vibration generating device 4 is fixed becomes a fixed point, and thus the vibration range is limited to be narrow. Moreover, the amplitude of the vibration obtained is also reduced. On the other hand, when the vibration generating device 4 is not directly fixed to the back surface 3 a of the vibration member 3 but is fixed to an article to which the vibration member 3 is attached or an external member, the vibration member 3 is Therefore, the vibration range is wider than the above, and the amplitude of the vibration obtained is also increased. Therefore, by selecting the installation method of the vibration generating device 4 according to the installation purpose of the tactile sensation generating device 1, the vibration range and the vibration method of the vibration member 3 can be set and adjusted optimally. In this embodiment, the vibration generating device 4 is fixed to an article to which the vibration member 3 is attached or an external member so that a large vibration can be generated over a wide range.

  In contrast to the above-described configuration, this embodiment has the following configuration.

(1) The vibration generating device 4 is a solenoid 23 having a movable iron core 21 that can move close to and away from the vibrating member 3 and a coil 22 that displaces the movable iron core 21 toward the vibrating member 3 when energized.
Then, before the vibration is generated, the movable iron core 21 is provided with a contact means 24 that can be placed in contact with the back surface 3a of the vibration member 3.

  Here, the vibrating member 3 may be a member that does not elastically deform if vibration is generated using the solenoid 23 (for example, a cloth-like body or a cord-like body to which tension is applied). In order to facilitate the generation of vibration and to reduce the burden on the solenoid 23, the vibration member 3 is preferably composed of an elastically deformable member. The amount of deformation of the vibration member 3 due to the pressing of the solenoid 23 may be small as long as vibration that can be clearly felt by touching with a finger is obtained. The vibration member 3 only needs to vibrate at least a portion where the solenoid 23 is installed.

  Therefore, it is preferable that the vibration member 3 has a shape retaining property capable of retaining the shape by itself. Moreover, it is preferable that the vibration member 3 has flexibility, softness, and toughness that can be elastically deformed by the pressing force of the solenoid 23 and can be restored by releasing the pressing force. The vibrating member 3 is preferably made of a relatively hard material and relatively thin. The vibration member 3 is preferably made of a thin plate material or panel material such as hard resin, metal, or wood.

  The approaching / separating movement is a movement toward the vibration member 3 and a movement away from the vibration member 3.

  The solenoid 23 is an electromagnetic actuator including a rod-shaped movable iron core 21 and a coil 22 wound in a cylindrical shape so that the movable iron core 21 can be accommodated therein. In the solenoid 23, an electromagnetic force is generated by energizing the coil 22, and the movable iron core 21 is forcibly displaced with respect to the coil 22 in one axial direction (or longitudinal direction) (the vibration member 3 side) ( Protruding movement). Thereby, the vibration member 3 is pressed and deformed. When the solenoid 23 stops energizing the coil 22, the electromagnetic force disappears and the movable iron core 21 is returned to the other side (the side opposite to the vibrating member 3) (retraction movement). As a result, the shape of the vibrating member 3 is restored. For the movement of the movable iron core 21, the weight of the movable iron core 21 can be used. The movable iron core 21 extends longer in the axial direction than the coil 22 so that it can be pulled out from both ends of the coil 22. When the coil 22 is energized, one side (protruding side) of the movable iron core 21. Projecting from the coil 22 larger than the other side (retraction side).

  The solenoid 23 has a configuration in which a coil 22 is accommodated in a cylindrical case 25, and the coil 22 is disposed concentrically with respect to the case 25. The movable iron core 21 can project outward from at least one side of the case 25. The solenoid 23 is installed with one side of the case 25 facing the back surface 3a side of the vibration member 3 in a state in which the movable iron core 21 is directed in a direction intersecting the vibration member 3, particularly in a direction substantially perpendicular to the vibration member 3. Is done.

  The case 25 has a bottom on the side opposite to the vibrating member 3 (the other side of the case 25). A first space 26 is formed between the other end of the coil 22 and the bottom surface 25 a of the case 25. The first space 26 is longer in the axial direction than the movable range of the other end (other end) of the movable iron core 21, and the other end of the movable iron core 21 is inside the first space 26. And moved in the axial direction in a state of being accommodated in the container.

  The case 25 is partitioned by a partition portion 25b whose side of the vibration member 3 (one side of the case 25) is substantially parallel to the bottom surface 25a. The coil 22 is accommodated in a space between the partition portion 25b and the bottom surface 25a of the case 25, and one end portion of the coil 22 is fixed to the other surface side of the partition portion 25b. The other end of the coil 22 defines the first space 26.

  In the case 25, a portion closer to the vibration member 3 than the partition portion 25 b is an extension portion 25 c that extends to the position of the substantially back surface 3 a of the vibration member 3. A flange portion 25d can be provided at the end of the extension portion 25c. The flange portion 25d may be in contact with the back surface 3a of the vibration member 3, or may be spaced apart.

  When the flange portion 25d is brought into contact with the back surface 3a of the vibration member 3, the flange portion 25d may or may not be fixed to the back surface 3a of the vibration member 3. When the flange portion 25 d is not fixed to the back surface 3 a of the vibration member 3 or when the flange portion 25 d is separated from the back surface 3 a of the vibration member 3, the case 25 is attached to a member different from the vibration member 3. A cushion material may be provided on the surface of the flange portion 25d facing the vibration member 3 so that the contact with the vibration member 3 can be reduced.

  A second space 27 is formed in a portion between the partition portion 25b and the back surface 3a of the vibration member 3 that is inside the extension portion 25c (or the flange portion 25d). The dimension of the second space 27 in the axial direction is such that when one end portion (tip portion) of the movable iron core 21 protrudes to the maximum, it protrudes to the outside of the flange portion 25d, and when retracted to the maximum, the flange portion The length is accommodated inside 25d.

  The situation of the movable iron core 21 in the tactile sensation generating device 1 will be described. The end portion (tip portion) on one side of the movable iron core 21 is not coupled and fixed to the rear surface 3a of the vibration member 3. Disconnected from.

  If the contact means 24 is not provided, the tip of the movable iron core 21 is retracted (in a non-energized state) and is separated from the back surface 3 a of the vibration member 3. By providing the contact means 24, as shown in FIG. 6, the tip of the movable iron core 21 is urged by the contact means 24 so as to protrude outward from one end side of the case 25 to the maximum projecting position. . The tip of the movable iron core 21 is pressed by the back surface 3a of the vibration member 3, and is retracted to an intermediate position between the maximum protruding position and the maximum retracted position as shown in FIG. You will be waiting in contact (standby state).

  And the front-end | tip part of the movable iron core 21 is forcedly protruded to the maximum protrusion position beyond the position of the back surface 3a of the vibration member 3 at the normal time, as shown in FIG. Is done. Due to the protruding movement of the movable iron core 21 by this energization, the vibration member 3 is pressed and deformed into a shape protruding to the surface side with respect to the shape when in the standby state. In addition, the position of the front-end | tip part of the movable iron core 21 at this time becomes the same as the time of FIG.

  Any contact means 24 may be used as long as the movable iron core 21 can be brought into contact with the back surface 3a of the vibration member 3 in the standby state. Preferably, the contact means 24 is as described below.

  (2) The contact means 24 may be an elastic contact member 31 that urges the movable iron core 21 toward the back surface 3 a of the vibration member 3.

  Here, for the contact means 24 (or contact portion), for example, another actuator (drive means) similar to the solenoid 23 can be used. However, in order to simplify the structure of the vibration generating device 4, it is preferable that the elastic contact member 31 is used.

  The elastic contact member 31 is a member (elastic member) that makes the movable iron core 21 contact the back surface 3 a of the vibration member 3 using an elastic force. The elastic contact member 31 preferably biases the movable iron core 21 toward the back surface 3a of the vibration member 3 with an elastic force that allows the vibration member 3 to maintain its shape. The elastic force capable of maintaining the shape of the vibrating member 3 is such that deformation of the vibrating member 3 is not recognized from the outside when the vibrating member 3 is in contact with the elastic force of the elastic contact member 31 in the standby state. It is an elastic force that can be suppressed to a low level.

  As described above, when the vibration generating device 4 is not covered with the vibration member 3, the movable iron core 21 is pushed by the elastic abutting member 31, thereby exceeding the position of the back surface 3 a of the vibration member 3 and protruding maximum. Projected to position (FIG. 6). When the vibration member 3 is provided on the vibration generating device 4 in this state, as shown in FIG. 3, the movable iron core 21 is pressed into the vibration member 3 and retracted to an intermediate position of the movable range. 3 is in contact with the back surface 3a of the 3 (standby state). At this time, the elastic force of the elastic contact member 31 is applied to the vibration member 3 via the movable iron core 21. By setting the elastic force of the elastic contact member 31 as described above, the vibration member 3 is Since the elastic contact member 31 is hardly deformed by the elastic force, the elastic contact member 31 is kept in the same shape as before the elastic force is applied. Therefore, the shape of the vibration member 3 is not adversely affected.

  As the elastic contact member 31, a contact spring or a contact elastic body can be used. A spring (compression spring) such as a coil spring can be used as the contact spring. Further, an elastic material such as rubber can be used for the contact elastic body. In this case, an elastic member whose elastic force is weaker than the shape holding force of the vibration member 3 is used as the elastic contact member 31 (elastic force of the elastic contact member 31 <shape holding force of the vibration member 3).

  However, the shape of the vibrating member 3 may be set to the initial shape of the vibrating member 3 when deformed by being abutted by the elastic force of the elastic abutting member 31 in the standby state. In this case, the elastic contact member 31 can be an elastic member having a stronger elastic force than the shape holding force of the vibration member 3.

  The elastic contact member 31 can be installed on the retracting side (first space 26) of the solenoid 23 or on the protruding side (second space 27) of the solenoid 23.

  When the elastic contact member 31 is installed on the retracting side of the solenoid 23, as shown in FIG. 3, the elastic contact member 31 includes the bottom of the case 25 and the end of the movable iron core 21 on the retracting side (or in the vicinity of the end). The first flange portion 35 provided between the first flange portion 35 and the first flange portion 35 is interposed.

  When the elastic contact member 31 is installed on the projecting side of the solenoid 23, the elastic contact member 31 is provided at the projecting end of the partition 25b and the movable iron core 21 (or in the vicinity of the end) as shown in FIG. It is interposed between the provided second flange portion 36.

  When the elastic contact member 31 is a contact spring (coil spring), the contact spring can be fitted onto the movable core 21. Further, when the elastic contact member 31 is an elastic material such as rubber, the elastic material can be externally fitted to the movable iron core 21 by forming a ring shape.

  (3) When the energization to the coil 22 is stopped, a return assisting means 41 that accelerates the separation of the movable iron core 21 with respect to the vibrating member 3 may be provided.

  Here, when the energization of the coil 22 is stopped is when the electromagnetic force applied to the movable iron core 21 to cause the vibration member 3 to generate vibration is lost. The separation movement can include both a case where the movable iron core 21 is not separated from the vibrating member 3 and a case where the movable iron core 21 is separated from the vibrating member 3 as shown in FIG. When the movable iron core 21 is not separated from the vibration member 3, for example, it can be caused by causing the deformation or displacement of the vibration member 3 following the movement of the movable iron core 21. In the case where the movable iron core 21 is separated from the vibration member 3, for example, it can be caused by the vibration member 3 being deformed or displaced without following the movement of the movable iron core 21.

  The return assisting means 41 (or the return assisting unit) may be anything as long as it can increase the speed of the separation movement of the movable iron core 21 with respect to the vibration member 3. Preferably, the return assisting means 41 is as described later.

  (4) The return assisting means 41 may be an elastic pullback member 51 that biases the movable iron core 21 in a direction away from the vibration member 3.

  Here, for the return assisting means 41, for example, another actuator (driving means) similar to the solenoid 23 can be used. However, in order to simplify the structure of the vibration generating device 4, it is preferable to use the elastic pullback member 51 for the return assisting means 41.

  The elastic pull-back member 51 is deflected and accumulates an elastic force when the coil 22 is energized to cause the movable iron core 21 to protrude in an operating state. The elastic pull-back member 51 may also be constituted by an elastic member whose elastic force is weaker than the elastic force of the elastic contact member 31 so that it can be bent by the elastic force of the elastic contact member 31 in a standby state ( Elastic force of elastic pullback member 51 <elastic force of elastic contact member 31).

  The elastic pullback member 51 can be a pullback spring or a pullback elastic body. A spring (compression spring) such as a coil spring can be used as the retracting spring. Moreover, an elastic material such as rubber can be used for the pulling elastic body.

  The elastic pullback member 51 can be installed on the retracting side of the solenoid 23 (first space 26) or on the protruding side of the solenoid 23 (second space 27).

  When the elastic retracting member 51 is installed on the retracting side of the solenoid 23, the elastic retracting member 51 is provided in the middle of the other end of the coil 22 and the retracting end of the movable iron core 21 as shown in FIG. 3. The first flange portion 35 is interposed.

  When the elastic pullback member 51 is installed on the protruding side of the solenoid 23, the elastic pullback member 51 is connected to the rear surface 3 a of the vibration member 3 and the end portion (or end portion) of the movable iron core 21 on the protruding side, as shown in FIG. It is interposed between the second flange portion 36 provided in the vicinity thereof.

  When the elastic pullback member 51 is a pullback spring (coil spring), the pullback spring can be externally fitted to the movable iron core 21. Further, when the elastic pullback member 51 is an elastic material such as rubber, the elastic material can be externally fitted to the movable iron core 21 by forming a ring shape.

  (5) As shown in FIGS. 1 and 2, the vibration member 3 may be provided in the interior part 2 installed in the vehicle 61.

  Here, the vibration member 3 can be provided, for example, for the interior part 2 installed in the room of the building, but may be provided in the interior part 2 installed in the vehicle interior of the vehicle 61. The interior item 2 is a device, an article, or a decoration provided in the room or the vehicle interior. The vibration member 3 may be installed on the surface design of the interior product 2, or may be installed so as not to be visible from the outside inside the interior product 2 if a tactile sensation can be felt. good.

  The interior goods 2 installed in the vehicle 61 (vehicle interior) include various interior panels 62 (vehicle interior panels) such as an instrument panel and a center console. Furthermore, auxiliary interior products 2 such as sub-panels and finishers can be appropriately attached to these interior products 2. The interior parts 2 such as an instrument panel, a center console, a sub panel, and a finisher have a complicated three-dimensional shape in terms of design.

  In this embodiment, an interior part 2 such as an instrument panel or a center console or an auxiliary interior part 2 attached to these interior parts 2 is used as the vibration member 3.

  (6) The vibration generating device 4 may be provided around the touch sensor switch 65 installed in the interior product 2.

  In general, some vehicles 61 are provided with a switch panel in an instrument panel or a center console constituting the interior product 2. Normally, the switch panel is composed of a separate member from the interior 2 such as the instrument panel and the center console and the auxiliary interior 2 such as the sub-panel and finisher. The switch button (actual button) that is actually pushed in is arranged.

  On the other hand, in this embodiment, a switch (touch sensor switch 65) by a touch sensor is provided on the back surface 3a side of the interior product 2 such as an instrument panel or a finisher attached to the instrument panel, whereby an instrument panel or a finisher is provided. It is a switch panel. The touch sensor is a sensor that detects contact or proximity to the surface 3b of the vibration member 3, and can be used as a switch. Thereby, the switch panel comprised by another member can be eliminated from an instrument panel, and the switch button actually pushed with a finger can also be eliminated. In this embodiment, a plurality of touch sensor switches 65 are provided as operation switches of an air conditioner (air conditioner) at substantially the center in the vehicle width direction 64 of the instrument panel.

  Then, by providing the tactile sensation generating device 1 together with the touch sensor switch 65 in the interior 2 (for example, an instrument panel or finisher) of the vehicle 61, the tactile sensation generating device 1 is activated immediately when the touch sensor switch 65 reacts. Thus, a switch panel that produces a tactile sensation upon input to the touch sensor switch 65 is obtained.

  A plurality of touch sensor switches 65 can be provided on the instrument panel and the finisher. The tactile sensation generating device 1 is provided for each touch sensor switch 65 in a one-to-one ratio, or is provided in a many-to-one ratio for the plurality of touch sensor switches 65. In this case, the tactile sensation generating device 1 is appropriately provided at a position within a range where vibration can be felt with a finger when one of the touch sensor switches 65 on the vibration member 3 is touched.

  Further, a portion where the touch sensor switch 65 of the instrument panel or the finisher is provided is a display unit 66. The display unit 66 has a design that allows the operation content of the touch sensor switch 65 to be understood. The display unit 66 is provided with an instrument panel by providing a thin part capable of transmitting light in a part of a finisher having a thickness that does not transmit light, or by embedding a transparent resin part by two-color molding or the like. And formed in the finisher. The touch sensor switch 65 is formed of a transparent electrode, and a light source is disposed on the back surface 3a side of the display unit 66 directly or via a light guide unit, whereby the display unit 66 can be transmissively illuminated.

  However, the interior product 2 in which the tactile sensation generating device 1 can be provided in the vehicle 61 is not limited to the above, and can be, for example, an interior product 2 such as a handle or a seat. When the tactile sensation generating device 1 is provided on a sheet, the vibration member 3 can be a sheet frame constituting a frame of the sheet, for example. The seat frame becomes invisible from the outside by being covered with a cushioning material or a cover. The vibration generated by the tactile sensation generating device 1 is set to a magnitude that is transmitted to the surface of the seat via a cushion material or a cover.

(7) Hereinafter, a tactile sensation generating method using the tactile sensation generating apparatus 1 will be described.
In the tactile sensation generation method, the tactile sensation is generated by causing the vibration member 3 to vibrate using the vibration generation device 4 installed on the back surface 3 a side of the vibration member 3.
A solenoid 23 having a movable iron core 21 that can move close to and away from the vibration member 3 and a coil 22 that presses the movable iron core 21 against the vibration member 3 by energization is used for the vibration generating device 4.
Before the vibration is generated, as shown in FIG. 3, the abutment means 24 is used to wait for the movable iron core 21 in contact with the back surface 3 a of the vibration member 3.
Then, as shown in FIG. 4, after the movable iron core 21 is pressed against the vibration member 3 and the vibration member 3 is pressed and deformed, the movable iron core 21 is moved away from the vibration member 3 as shown in FIG. By causing the shape of 3 to return, vibration is generated in the vibration member 3.

  <Operation> The operation of this embodiment will be described below.

  The tactile sensation generating device 1 includes a vibration member 3 and a vibration generation device 4, and when the surface 3 b of the vibration member 3 is touched, the vibration generation device 4 installed on the back surface 3 a side of the vibration member 3 is attached to the vibration member 3. By generating vibration, the vibration member 3 is a device that feels the vibration of the vibration member 3 as a tactile sensation or emphasizes the tactile sensation. Thereby, a person who touches the surface 3b of the vibration member 3 can be artificially given a feeling (operation feeling as if something was actually operated).

  At this time, it is preferable to use an elastically deformable member for the vibrating member 3. Thereby, the vibration of the vibration member 3 by the vibration generating device 4 becomes large and it becomes easy to feel a tactile sensation.

  The tactile sensation generating device 1 can be configured so as to obtain a tactile sensation (actual feeling of operation) when input to the touch sensor switch 65 by combining with an input device such as a touch sensor switch 65 using the touch sensor switch 65, for example. Moreover, the tactile sensation generating device 1 can be used, for example, to provide attention by using vibration by being provided alone.

  <Effect> According to this embodiment, the following effects can be obtained.

  (Effect 1) The vibration generating device 4 is composed of a solenoid 23 having a movable iron core 21 and a coil 22. The solenoid 23 energizes the coil 22 so that the movable iron core 21 is moved closer to the vibrating member 3 by electromagnetic force (protruding movement), and the vibrating member 3 is forcibly pressed from the back surface 3a side to the front surface 3b side. Deform. Further, the solenoid 23 stops energization to the coil 22, so that the electromagnetic force is lost and the movable iron core 21 is moved away (retracted) from the vibration member 3, and the forced pressing deformation on the vibration member 3 is instantaneously performed. Is released. Thus, the pressing force by the movable iron core 21 disappears instantaneously, so that the vibrating member 3 that has been pressed and deformed tends to return rapidly due to the elastic force of the vibrating member 3. Therefore, vibration is generated in the vibration member 3, and a pseudo tactile sensation is generated by the vibration of the vibration member 3.

  Then, a contact means 24 is provided to wait in a state where the movable iron core 21 is in contact with the back surface 3a of the vibration member 3 before the vibration is generated. By setting such a standby state, it is possible to generate vibration in the vibration member 3 without directly hitting the vibration member 3. At this time, the solenoid 23 operates without the movable iron core 21 directly hitting the back surface 3a of the vibration member 3, so that it is possible to eliminate the generation of a large hitting sound. In addition, since the vibration of the vibration member 3 is generated by the elastic restoring force of the vibration member 3, more natural vibration and tactile sensation can be obtained as compared with the case where the vibration is generated by hitting the vibration member 3.

  As described above, when the vibration member 3 is caused to vibrate without directly striking the vibration member 3 by utilizing the shape return due to the pressure deformation and elastic force of the vibration member 3, a relatively large size such as the solenoid 23 is used. It is effective to use the vibration generating device 4.

  Further, when the vibration generating device 4 is installed on the back surface 3a of the vibration member 3, it is necessary to consider the influence of the dimensional variation (of the vibration member 3 and the vibration generation device 4), but the solenoid 23 is relatively large. Since the movable iron core 21 has a large movable stroke, the vibration generating device 4 is less susceptible to variations in dimensions than the case of using other small vibration generating devices having a small amplitude. Becomes easy. Further, according to the above, it is not necessary to provide a special loose absorbing means for installing the vibration generating device 4 on the back surface 3a side of the vibration member 3. Therefore, the use of the solenoid 23 eliminates the influence of dimensional variation and provides a stable operation, which is structurally advantageous.

  The influence of the dimensional variation when the vibration generating device 4 is installed on the back surface 3a of the vibration member 3 is that the movable iron core 21 is brought into contact with the back surface 3a of the vibration member 3 in the standby state. It can be easily absorbed by setting.

  (Effect 2) As the contact means 24, an elastic contact member 31 may be used. By using the elastic force of the elastic contact member 31, it is lightly pressed against the back surface 3 a of the vibration member 3 in a state in which the distal end portion of the movable iron core 21 protrudes to an intermediate position in the movable range in the standby state. Can be set easily and reliably. In addition, when the vibration is generated in the vibration member 3 by the solenoid 23, the elastic contact member 31 is unlikely to hinder vibration.

  At this time, by using an elastic contact member 31 such as a contact spring or a contact elastic body for the contact means 24, for example, another actuator is used as the contact means 24 to electrically connect another actuator. Compared to the case of driving the motor, the configuration of the contact means 24 can be simplified.

  When the movable iron core 21 is retracted in the middle of the operation state that generates vibration, the movable iron core 21 is temporarily separated from the back surface 3a of the vibration member 3, and the back surface of the vibration member 3 again. A phenomenon that abuts against 3a may occur. However, due to this phenomenon, the distance that the movable iron core 21 is separated from the vibration member 3 is small, and even when the movable iron core 21 comes into contact with the back surface 3a of the vibration member 3 again after the separation, the vibration generating device 4 (electromagnetic force) causes The contact is caused by the elastic force of the elastic contact member 31. Therefore, since the movable iron core 21 does not hit the back surface 3a of the vibration member 3 so strongly, the impact sound due to this contact is small and can be suppressed to a level that is not particularly noticeable.

  (Effect 3) You may provide the return assistance means 41 which speeds up the separation movement with respect to the vibration member 3 of the movable iron core 21, when the electricity supply to the coil 22 is stopped in the middle of the operation state which generates a vibration. As described above, when the energization to the coil 22 is stopped and the electromagnetic force is lost, the return assisting means 41 assists the movement of the movable iron core 21 in the direction away from the vibrating member 3, thereby vibrating the vibrating member 3. Can be made faster (response speed of the vibrating member 3).

  (Effect 4) The return assisting means 41 may be an elastic pullback member 51. When the movable iron core 21 protrudes to the maximum projecting position by the electromagnetic force of the solenoid 23, the elastic pull-back member 51 is bent along with the movement of the movable iron core 21, and the elastic force is accumulated. The elastic pull-back member 51 is weaker than the elastic contact member 31 so as to be slightly bent even in a standby state in which the movable iron core 21 protrudes to an intermediate position by the pressing force of the elastic contact member 31. It is good also as a member (elastic pull-back member 51 <elastic contact member 31).

  At this time, by using an elastic return member 51 such as a return spring or a return elastic body for the return assisting means 41, for example, another actuator is used as the return assisting means 41 to electrically connect another actuator. Compared with the case where it drives, the structure of the return assistance means 41 can be simplified.

  Specifically, the elastic pull-back member 51 (return assisting means 41) has an elastic force when the movable iron core 21 is lightly contacted in advance with the back surface 3a of the vibration member 3 by the elastic contact member 31 in a standby state. Almost no accumulation is performed, or the elastic contact member 31 is slightly bent and the elastic force is slightly accumulated. At this time, the elastic contact member 31 (contact means 24) is in a state where most of the accumulated elastic force is used by bringing the movable iron core 21 into contact with the vibration member 3.

  When the movable iron core 21 is forcibly protruded by energization of the coil 22, the elastic pullback member 51 is bent and the elastic force is accumulated to the maximum. At this time, the elastic contact member 31 (contact means 24) is in a state in which the movable iron core 21 protrudes to the maximum projecting position, so that the elastic force that is stretched to substantially the natural length or the vicinity thereof is hardly left. (Alternatively, the elastic force in the opposite direction may be accumulated by extending the natural length).

  Next, when the energization of the coil 22 is stopped, the vibration member 3 is restored to its shape, and at the same time, the elastic force accumulated in the elastic pullback member 51 is released at once, and the movable iron core 21 moves away from the vibration member 3. By energizing in the direction in which the elastic member 21 is elastic, the elastic force of the elastic pull-back member 51 is applied to the elastic member 3 rather than the restoring force of the vibrating member 3 itself or the response speed of the vibrating member 3 obtained by the dead weight of the movable iron core 21. The response speed of the vibrating member 3 is increased by the difference between the elastic force of the elastic pull-back member 51 and the elastic force of the elastic contact member 31 (response speed when there is no elastic pull-back member 51 <elastic pull). Response speed when the return member 51 is provided). At this time, the elastic force for bringing the movable iron core 21 into contact with the back surface 3a of the vibration member 3 again is accumulated in the elastic contact member 31 (contact means 24).

  Thereafter, the movable iron core 21 is again returned to the standby state (a state where it is lightly abutted against the back surface 3 a of the vibration member 3) by the elastic force accumulated in the elastic abutting member 31.

  (Effect 5) You may provide the vibration member 3 in the interior goods 2 installed in the vehicle 61. FIG. Thereby, the interior goods 2 of the vehicle 61 have a tactile sensation generating function integrally, and the interior goods 2 having the tactile sensation generating function can be easily obtained.

  In addition, for example, by providing the tactile sensation generating device 1 alone in the interior 2 such as a handle or seat of the vehicle 61, warning information detected by the vehicle 61 during driving (for example, a pedestrian jumping out or a preceding vehicle Warning information for a sudden interruption or a sudden stop of the preceding vehicle) can be quickly transmitted to the occupant's body via the interior part 2 to be alerted. As the warning information, for example, information obtained by processing information from various sensors and cameras provided in the vehicle 61 for automatic driving can be used.

  (Effect 6) The vibration generating device 4 may be provided around the touch sensor switch 65 installed in the interior product 2. Thereby, tactile sensation can be generated in accordance with the input to the touch sensor switch 65. Moreover, by providing the tactile sensation generating device 1 and the touch sensor switch 65 in combination on the back surface 3a side of the vibration member 3, the interior product 2 can be switched to an invisible switch (by the touch sensor switch 65 installed on the back surface 3a side). In addition, an invisible switch can be provided as a highly functional switch panel having a feeling of operation (similar to a switch button that can be actually pushed by a finger by the tactile sensation generating device 1).

  (Effect 7) As a tactile sensation generating method using the tactile sensation generating device 1, the movable iron core 21 is kept in contact with the back surface 3a of the vibration member 3 using the contact means 24 before the vibration is generated. After the movable iron core 21 is pressed against the vibration member 3 and the vibration member 3 is pressed and deformed, the movable iron core 21 is moved away from the vibration member 3 to return the shape of the vibration member 3, thereby generating vibration in the vibration member 3. You may do it. According to such a tactile sensation generating method, it is possible to obtain the same effect as the above effect 1.

DESCRIPTION OF SYMBOLS 1 Tactile sensation generating device 2 Interior goods 3 Vibration member 3a Back surface 4 Vibration generating device 21 Movable iron core 22 Coil 23 Solenoid 24 Contact means 31 Elastic contact member 41 Return assisting means 51 Elastic pull-back member 61 Vehicle 65 Touch sensor switch 65

Claims (9)

In the tactile sensation generating device in which a vibration generating device is installed on the back side of the vibration member,
The vibration generating device is capable of moving toward and away from the vibrating member, and displaces the movable iron core toward the vibrating member by energization to press and deform the vibrating member, and the movable by stopping energization. tactile generator, characterized in that it is a solenoid having a coil Ru is vibrated by the elastic restoring force of the vibration member the core is separated recoil from the vibrating member. The tactile sensation generating device according to claim 1,
A tactile sensation generating apparatus comprising: a contact means for waiting in a state where the movable iron core is in contact with the back surface of the vibration member in a non-energized state. The tactile sensation generating device according to claim 2 ,
The tactile sensation generating apparatus according to claim 1, wherein the contact means is an elastic contact member that urges the movable iron core toward the back surface of the vibration member. It claims 1 a tactile generator according to any one of claims 3,
A tactile sensation generating device comprising return assisting means for accelerating the separation of the movable iron core from the vibrating member when energization of the coil is stopped. The tactile sensation generating device according to claim 4 ,
The tactile sensation generating device according to claim 1, wherein the return assisting means is an elastic pullback member that biases the movable iron core in a direction away from the vibration member. The tactile sensation generating device according to any one of claims 1 to 5 ,
The tactile sensation generating apparatus, wherein the vibration member is provided in an interior product installed in a vehicle. The tactile sensation generating device according to claim 6 ,
The vibration generating device, tactile generator, characterized in that provided on the periphery of the touch sensor switcher switch installed in the interior part. In the tactile sensation generating method in which a tactile sensation is generated by generating vibration in the vibration member using a vibration generating device installed on the back side of the vibration member.
In the vibration generating device, a solenoid having a movable iron core that can move close to and away from the vibrating member, and a coil that presses the vibrating iron core against the vibrating member by energization,
After the movable iron core is pressed against the vibrating member by energization to press and deform the vibrating member, the movable iron core is moved away from the vibrating member by stopping energization to restore the shape of the vibrating member. A tactile sensation generating method characterized by generating a vibration due to an elastic restoring force on a member. The tactile sensation generating device according to claim 8,
A tactile sensation generating apparatus characterized in that, when in a non-energized state, the movable iron core is kept in a standby state in contact with the back surface of the vibration member using a contact means.