Vibration device

Abstract

This invention provides a vibration device that combines functionality and safety, allowing for good contact with touchscreens while being designed to prevent it from being easily chewed off by infants. [Solution] A vibration device 1 that generates vibrations comprises a tip portion 10 and a main body portion 20 extending from the tip portion 10 in a first direction in the longitudinal axis direction, wherein the tip portion 10 includes a contact portion 11 that can contact a touch screen and a mounting portion 15 to which the contact portion 11 is attached, the contact portion 11 has a length of 3.2 mm or more and 3.5 mm or less in the direction opposite to the first direction in the longitudinal axis direction from the mounting portion 15, and the contact portion 11 is characterized by having a curved surface with a radius of curvature of 4.5 mm or more and 5.3 mm or less.

Description

Technical Field

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[0001] The present invention relates to a vibration device.

Background Art

[0002] A pen-type device is known as a device for operating a touch screen. Such a device is configured by providing a contact portion that can contact the touch screen at the tip of the device. <​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​In this monitoring test, as shown in Figure 9A, toddlers sometimes operated the vibration device 101 by holding it almost perpendicular to the surface of the tablet terminal device 100, which serves as a touchscreen. However, as shown in Figure 9B, it was also frequently observed that toddlers attempted to make contact with the vibration device 101 at an angle relative to the surface of the tablet terminal device. In particular, because toddlers have immature hand movements, it is difficult for them to grasp the vibration device 101 at the appropriate angle, and contact with the display of the tablet terminal device tends to be insufficient.

[0008] As shown in Figure 9B, even when attempting to bring the tip of the vibration device into contact with the display of a tablet device while holding the device at an angle, the tip of the vibration device may not easily make contact with the display, making it difficult to properly operate the tablet device. In some cases, if the tilt of the vibration device is too great, the tip of the vibration device may not make contact with the display at all. This has made it clear that for vibration devices for infants, it is necessary to ensure reliable contact with the display by exposing a sufficiently large portion of the contact material at the tip.

[0009] On the other hand, it became clear that by exposing a large portion of the contact material, there is a risk that young children may put the exposed portion in their mouths, try to bite it off, or even actually bite it off. In other words, while some exposure of the contact material is necessary to ensure ease of contact, a structure that is difficult to bite off is necessary to ensure the safety of young children and prevent accidental ingestion or damage. Thus, the technical challenge that this invention aims to solve is to reconcile the conflicting requirements of reliable contact with the display and safety to prevent accidental ingestion or damage.

[0010] Therefore, the present invention aims to provide a vibration device that combines functionality and safety, which can make good contact with a touchscreen while being configured so that it cannot be easily bitten off by an infant. [Means for solving the problem]

[0011] To achieve the above objective, the present invention A vibration device comprising a tip portion and a main body portion extending from the tip portion in a first direction along the long axis, wherein the device generates vibration, The tip portion includes a contact portion that can contact a touchscreen and a mounting portion to which the contact portion is attached. The contact portion has a length of 3.2 mm to 3.5 mm from the mounting portion in the direction opposite to the first direction in the longitudinal axis direction. The contact portion is characterized by having a curved surface with a radius of curvature of 4.5 mm or more and 5.3 mm or less. [Effects of the Invention]

[0012] According to the present invention, it is possible to provide a vibration device that combines functionality and safety, which is configured to allow good contact with a touchscreen while being difficult for infants to chew off. [Brief explanation of the drawing]

[0013] [Figure 1] Figure 1 is a schematic diagram of a vibration device according to an embodiment of the present invention. [Figure 2] Figure 2 is a schematic diagram showing a modified example of the vibration device shown in Figure 1. [Figure 3] Figure 3 is a schematic front view of a vibration device according to an embodiment of the present invention. [Figure 4] Figure 4 is a magnified view of a portion of the vibration device shown in Figure 3. [Figure 5] Figure 5 is a schematic diagram showing an enlarged view of a specific configuration example of the vibration device shown in Figure 3. [Figure 6] Figure 6 is a left side view of the vibration device shown in Figure 3. [Figure 7] Figure 7 is a schematic diagram showing the state in which the vibration device shown in Figure 3 is used. [Figure 8]FIG. 8 is a diagram for explaining details of the attachment portion and the main body portion in the vibration device according to the embodiment of the present invention, FIG. 8A is a front view, FIG. 8B is a side view, FIG. 8C is a bottom view, and FIG. 8D is a plan view. [Figure 9] FIG. 9 is a diagram for explaining the problem to be solved by the present invention, FIG. 9A shows a certain situation where an infant tries to touch the surface of a tablet terminal device with the tip of the vibration device, and FIG. 9B is a diagram showing a certain state different from FIG. 9A.

Embodiment for Implementing the Invention

[0014] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0015] FIG. 1 is a schematic view of a vibration device 1 according to an embodiment of the present invention. The vibration device 1 includes a tip portion 10 and a main body portion 20 extending from the tip portion 10 in a first direction along the long axis direction, and generates vibration. The main body portion 20 includes a portion (grasping portion) grasped by the operator's hand.

[0016] The tip portion 10 includes a contact portion 11 that can contact the touch screen and an attachment portion 15 to which the contact portion 11 is attached. The contact portion 11 has a length D of 3.2 mm or more and 3.5 mm or less in a second direction opposite to the first direction along the long axis direction from the attachment portion 15. The contact portion 11 includes a curved surface having a radius of curvature R of 4.5 mm or more and 5.3 mm or less.

[0017] With such a configuration, the vibration device 1 according to the embodiment of the present invention can surely bring the contact portion 11 into contact with the touch screen even when an infant grasps the main body portion 20 and the contact portion 11 is inclined with respect to the touch screen, and it is difficult for the infant to easily bite or tear the contact portion 11 with teeth. Thereby, it is possible to achieve both conflicting requirements of reliable contact with the touch screen and safety for preventing accidental ingestion and breakage. Examples of the touch screen include a tablet terminal device, and the contact portion 11 can contact the display portion of the tablet terminal device.

[0018] The contact portion 11 may be composed of a curved surface with a radius of curvature, as shown in Figure 1, or it may be composed of a first portion 16x that extends linearly in a plan view from the mounting portion 15 in a second direction along the long axis, and a second portion 16y which is a curved surface portion with a radius of curvature R, provided on the opposite side of the mounting portion 15 with the first portion 16x in between. In this case, the first portion 16x and the second portion 16y are integrally formed. [Examples]

[0019] The following provides a detailed explanation with reference to examples.

[0020] Figure 3 is a schematic front view of a vibration device 1 according to an embodiment of the present invention. The vibration device 1 comprises a tip portion 10 and a main body portion 20 extending from the tip portion 10 in a first direction along the long axis, with a vibration source 2 built into the main body portion 20.

[0021] Figure 4 is a magnified view of a part of the vibration device shown in Figure 3. The tip portion 10 includes a contact portion 11 that can contact the touchscreen and a mounting portion 15 on which the contact portion 11 is provided. The contact portion 11 is the portion of the contact member 16 that is exposed from the lower end of the mounting portion 15 in the opposite direction to the first direction (also called the "exposed portion"). The mounting portion 15 holds the rest of the contact member 16 so that a portion of the contact member 16 is exposed from the mounting portion 15 in the second direction. The contact member 16 is molded from conductive resin or rubber so that a child can operate the touchscreen.

[0022] The mounting portion 12 is provided inside the mounting portion 15. The mounting portion 12 is the part to which the contact member 16 is attached. The mounting portion 15 has an outer holding portion 13, which holds the contact member 16 so that when the contact member 16 is attached to the mounting portion 12, a part of the contact member 16 is exposed as a contact portion 11. The contact portion 11 has a length D of 3.2 mm or more and 3.5 mm or less in a second direction in the longitudinal axis direction, and the contact portion 11 has a curved surface with a radius of curvature R of 4.5 mm or more and 5.3 mm or less.

[0023] Figure 5 is a schematic diagram showing an enlarged view of a specific configuration example of a part of the vibration device 1 shown in Figure 3. The contact member 16 has an opening in a first orientation in the longitudinal axis direction. In the first orientation in the longitudinal axis direction, it has a flange portion 16b that extends radially outward from the axis. Between the contact portion 16a and the flange portion 16b, there is a substantially cylindrical cylindrical portion 16c.

[0024] The mounting portion 12 includes a mounting body portion 12a having a bowl-shaped lower end surface to facilitate mounting of the cylindrical portion 16c and a shaft portion extending in a first direction along the long axis, and a stopper portion 12b having a larger radius than the shaft portion. The stopper portion 12b is made of a conductive material to prevent the flange portion 16b from being pushed in in the first direction along the long axis. The stopper portion 12b is electrically connected to electronic components, including a vibration source 2, which is housed in the main body portion 20.

[0025] Of the contact member 16, the flange portion 16b and the cylindrical portion 16c are held in place by being sandwiched from the inside by the mounting body portion 12a and from the outside by the outer holding portion 13.

[0026] Figure 6 is a left side view of the vibration device 1 shown in Figure 3. The vibration device 1 comprises a case including a case member 31 and a lid member 32. The case member 31 is configured to allow the lid member 32 to be detachably attached.

[0027] With the contact member 16 mounted on the mounting portion 12, the lid member 32 is attached to the case member 31. The outer holding portion 13 is composed of the lower ends of the tip of each of the case member 31 and the lid member 32, as viewed from the entire vibration device 1. At the tip of each of the case member 31 and the lid member 32, the surfaces facing the flange portion 16b and the cylindrical portion 16c have a shape corresponding to the flange portion 16b and the cylindrical portion 16c of the contact member 16, so as to hold the flange portion 16b and the cylindrical portion 16c of the contact member 16 when the contact member 16 is mounted on the mounting portion 12.

[0028] The contact member 16 has a gap 14 with respect to the mounting portion 12 in a first direction along the long axis, i.e., upward in Figure 5, with a length D1 along the long axis of 0.7 mm or less. The gap 14 is defined as the distance between the inner curved surface of the contact member 16 and the lower end surface of the mounting portion 12 being 0.7 mm or less along the long axis. It is sufficient to have a gap 14. This makes it more difficult for infants to bite off the contact portion 11 with their teeth.

[0029] As shown in Figure 5, the lower end of the mounting portion 12, which is the tip, protrudes downward from the tip of the outer holding portion 13. As a result, when the contact member 16 is not attached to the mounting portion 12, a portion of the mounting portion 12 protrudes and is exposed from the outer holding portion 13.

[0030] A prototype vibration device 1 having the structure shown in Figure 5 was fabricated.

[0031] In Example 1, the contact portion 11 had a length D of 3.2 mm in the second direction along the long axis, and the radius of curvature R of the contact portion 11 was set to 5.3 mm.

[0032] In Example 2, the contact portion 11 had a length D of 3.5 mm in the second direction along the long axis, and the radius of curvature R of the contact portion 11 was set to 4.5 mm.

[0033] In the comparative example, the contact portion 11 had a length D of 4 mm in the second direction along the long axis, and the radius of curvature R of the contact portion 11 was set to 3.8 mm.

[0034] The following tests were performed on the vibration device 1 fabricated in Example 1, Example 2, and Comparative Example 3.

[0035] As the first test, the contact portion 11 was clamped between bite-like portions and a load was applied to the contact portion 11 to check whether it would tear or crack. In all of Examples 1, 2, and the comparative example, no tearing or cracking was observed in the contact portion 11.

[0036] As a second test, with the vibration device 1 fixed in place, torque was applied to the contact portion 11 by clamping it with a clamp, and the clamp was rotated clockwise and counterclockwise in the direction of the long axis of the vibration device 1 to check whether the contact portion 11 deformed. No adverse effects such as deformation were observed on the contact portion 11 in any of Examples 1, 2, or the comparative example.

[0037] As a third test, a tensile test was performed by clamping the contact portion 11 and applying a tensile force to it. Tensile forces were applied separately in a direction perpendicular to the long axis of the vibration device 1 and in a direction perpendicular to both that direction and the long axis. In Examples 1 and 2, almost no effect was observed, but in the comparative example, the contact portion 11 tore.

[0038] From the above, it was found that in Examples 1 and 2, the infant operating the vibration device 1 was unable to bite through the contact portion 11 of the vibration device 1 with their teeth.

[0039] Furthermore, in Examples 1 and 2, it was confirmed that if the radius of curvature of the contact portion 11 is between 4.5 mm and 5.3 mm, reliable contact between the tip of the contact portion 11 and the touchscreen 5 can be ensured.

[0040] From the above, the following was found: If the length of the contact portion 11 exposed from the mounting portion 15 and the length D in the major axis direction are 3.2 mm or more and 3.5 mm or less, and the contact portion 11 has a curved surface with a radius of curvature of 4.5 mm or more and 5.3 mm or less, then a child will not be able to bite through the contact portion 11.

[0041] The thickness t of the material of the contact portion 11 was 1.4 mm in Example 1, 1.25 mm in Example 2, and 0.8 mm and 1.0 mm in the comparative examples. Two types of comparative examples were prepared. From this, it is preferable that the contact portion 11 has a thickness t of 1.2 mm or more and 1.4 mm or less.

[0042] The length D1 of the gap 14 in the first direction along the long axis was 0.7 mm in Example 1, 0.7 mm in Example 2, and 1 mm in the Comparative Example. The contact portion 11 and the mounting portion 12 have a gap 14 with a length D1 in the long axis direction, and this length is 0.7 mm or less.

[0043] Table 1 summarizes the dimensions of Example 1, Example 2, and Comparative Example 3.

[0044] [Table 1]

[0045] In the embodiment of the present invention, the vibration device 1 only needs to have the length D of the contact portion 11 and the radius of curvature R of the curved surface of the contact portion 11 within the above range. The vibration device 1 in the embodiment of the present invention is not limited to the form shown in Figures 1 to 6, and may be modified as appropriate within the scope of the present invention.

[0046] For example, the main body 20 may be roughly rectangular in a front view as shown in Figure 1, as long as it extends in the longitudinal direction, and the upper and lower intermediate parts may be thicker or thinner. The first orientation in the longitudinal direction is upward in Figure 1, and the longitudinal direction coincides with the tip of the tip portion 10, the part that contacts the touchscreen, in a top view of the vibration device 1.

[0047] [Usage Pattern] Figure 7 is a schematic diagram showing the state in which the vibration device 1 shown in Figure 3 is used. As shown in Figure 7, the operator, an infant, grasps the main body 20 of the vibration device 1 with both hands and touches the contact part 11 to the display area of ​​the touchscreen 5, and the contact part 11 interacts with what is displayed on the touchscreen 5 (in Figure 7, it is a plate; hereafter, the displayed item will be referred to as "item" 6). The touchscreen 5 is equipped with a display input interface, and input by touching the screen surface is detected by the display input interface.

[0048] The touchscreen 5 stores application programs corresponding to multiple items 6, and when the contact portion 11 of the vibration device 1 touches the touchscreen 5, these programs are executed sequentially. As a result, visual changes, sound output, and vibration presentation from the vibration device 1 are synchronized in response to the display and operation of the items 6.

[0049] Specifically, when a toddler touches an item 6, such as a plate, on the touchscreen 5 using the contact part 11, the display content related to the item 6 on the touchscreen 5 is changed or added, for example, an animation showing beans being released onto a plate is displayed. At the same time, the vibration source 2 inside the vibration device 1 is activated, generating vibrations that simulate the tactile presence of beans, and these vibrations are transmitted to the toddler's hands.

[0050] As another example, when the user traces a line displayed on the touchscreen 5 with the contact area 11, the line is recognized as a railway track, and an animation of a train running along it is displayed. In addition, the sound of the train running and related sound effects are played, and vibrations synchronized with the train's movement are generated from the vibration source 2, providing the user with tactile feedback.

[0051] In this way, by configuring the system so that the display content on the touchscreen 5, sound, and vibration are output in conjunction with a touch operation by the vibration device 1, it becomes possible to present the feel and state of an object to a child in a multi-sensory manner. In particular, it is expected that the integrated use of vibration, visual, and auditory information presentation will support the development of the child's sensibilities and perception.

[0052] In an embodiment of the present invention, the user, or operator, of the vibration device 1 is an infant, a child under one year old who can crawl, up to around school age. The touchscreen 5 displays items 6 that are of interest to infants, such as animals, plants, food, vehicles such as trains, airplanes, cars, and bicycles, and everyday items such as tableware and musical instruments. When the infant touches an item 6 with the tip of the vibration device 1, the vibration device 1 vibrates at a predetermined timing. The type and timing of the vibration may or may not depend on the item 6. Furthermore, the display on the touchscreen 5 may be added or changed. These features provide infants with a sense of touch. Therefore, it is particularly suitable for young children under two or three years old.

[0053] [Details of the mounting section and main body] Next, the mounting portion 15 and the main body portion 20 in the vibration device 1 according to an embodiment of the present invention will be described in detail. Figure 8 is a diagram illustrating the details of the mounting portion 15 and the main body portion 20 in the vibration device 1 according to an embodiment of the present invention, where Figure 8A is a front view, Figure 8B is a side view, Figure 8C is a bottom view, and Figure 8D is a top view. The rear view is symmetrical to the front view, and the right side is symmetrical to the left side.

[0054] First, let's describe the mounting portion 15. The main body portion 20 has a left-right width W11 of 30 mm to 70 mm in the portion including the boundary with the mounting portion 15. The mounting portion 15 has a longitudinal dimension H1 of 15 mm to 30 mm. The mounting portion 15 has an external dimension in which the left-right width W13 at the boundary with the main body portion 20 is not longer than the left-right width W11 in the portion including the boundary with the tip portion 10 of the main body portion 20, and the left-right width W12 in the portion including the boundary with the contact portion 11 is 15 mm or shorter than the left-right width W11 in the portion including the boundary with the tip portion 10 of the main body portion 20. The left-right width of the mounting portion 15 does not increase as it extends in a second longitudinal direction from the boundary with the main body portion 20. In other words, the left-right width of the mounting portion 15 does not increase as it goes downwards from the upper end 15a to the lower end 15b.

[0055] The left-right width W of the mounting portion 15 satisfies the following relationships in relation to the left-right width W11 of the portion of the main body 20 including the boundary with the mounting portion 15 (tip portion 10), the left-right width W12 of the portion of the mounting portion 15 including the boundary with the contact portion 11, and the left-right width W13 of the boundary between the mounting portion 15 and the main body 20: W12 ≤ W11 - 15 mm, W12 ≤ W ≤ W13 ≤ W11, and 30 mm ≤ W11 ≤ 70 mm. This allows the mounting portion 15 to hold the contact member 16 with a portion of it exposed, and has a sufficient surface area to allow the contact portion 11 to contact the touchscreen. If the left-right width W of the mounting portion 15 is longer than the above range, a child may grab it with their hand, causing their hand to touch the touchscreen and initiating unintended operation of the vibration device 1 itself or the touchscreen, which is undesirable. By satisfying the relationship W12 ≤ W11 - 15 mm, a child can operate the touchscreen even if they hold the vibration device 1 at an angle to the surface of the touchscreen.

[0056] Furthermore, it is preferable that the depth of the mounting portion 15 be 27 / 30 or less of the left-right width W11 of the lower end of the main body portion 20. If the depth of the mounting portion 15 is long, a child may grab the mounting portion 15 with their hand, which is undesirable as described above.

[0057] The depth of the mounting portion 15 decreases in accordance with the decrease in the left-right width of the mounting portion 15 as it moves towards the second longitudinal direction. It is preferable that the depth D12 at the lower end 15b of the mounting portion 15 is 15 mm or more, so that the mounting portion 15 can securely hold the contact member 16. The depth D12 at the lower end 15b of the mounting portion 15 may coincide with the left-right width W12 at the lower end 15b of the mounting portion 15.

[0058] As shown in Figure 8, the vibration device 1 has a structure that makes it difficult for a child to grasp the tip 10, including the mounting part 15. Therefore, when a child uses the vibration device 1 to operate a touchscreen with touch panel functionality, it becomes difficult for their fingers or wrist to touch the display area of ​​the touchscreen, making it difficult for the touchscreen to detect unintended input from the child.

[0059] As shown in Figure 8, the mounting portion 15 of the vibration device 1 does not need to have a shape in which at least one of the left-right width and depth width is shortened from the upper end 15a to the lower end 15b of the mounting portion 15. It is sufficient that at least one of the left-right width and depth width is shortened in some part of the mounting portion 15 from the upper end 15a to the lower end 15b. The rate of reduction of either the left-right width or depth width with respect to the second change in orientation from the upper end 15a to the lower end 15b of the mounting portion 15 does not need to be constant. It may be small at the upper end 15a and the lower end 15b, and large in the intermediate part between the upper end 15a and the lower end 15b.

[0060] As shown in Figure 8A, the left-right width W13 of the boundary between the mounting portion 15 and the main body portion 20 is equal to the left-right width W11 of the main body portion 20 including the boundary with the mounting portion 15, and not only is the shape important, but the left-right width W13 may be shorter than the left-right width W11. As shown in Figure 8B, the depth width D13 of the boundary between the mounting portion 15 and the main body portion 20 is equal to the depth width D11 of the main body portion 20 including the boundary with the mounting portion 15, and not only is the shape important, but the depth width D13 may be shorter than the depth.

[0061] [Details of the main unit] Next, the main body portion 20 will be described in detail. The main body portion 20 has a gripping portion 26. The gripping portion 26 has a longitudinal dimension of at least 40 mm in a region located 15 mm to 200 mm away from the boundary between the mounting portion 15 and the contact portion 11 in the first longitudinal direction. The gripping portion 26 has a left-right width of 30 mm to 70 mm regardless of the longitudinal direction. The gripping portion 26 has a depth width D11 between the front surface 41 and the rear surface 42, and the depth width D11 has a length of 23 / 30 or less of the left-right width of the gripping portion 26.

[0062] Preferably, as shown in Figure 8A, the gripping portion 26 of the main body 20 is set so that it can be easily grasped by an infant in a region of 15 mm to 200 mm in the longitudinal direction from the boundary between the mounting portion 15 and the contact portion 11 (the lower end 15b of the mounting portion 15). The gripping portion 26 is set to have a length H21 of at least 40 mm in the longitudinal direction. In Figure 8A, the gripping portion 26 is set to have a length H21 (≧40 mm) in a region of H31 (=15 mm) or more in the longitudinal direction from the boundary between the mounting portion 15 and the contact portion 11, and no more than H32 (=200 mm) in the longitudinal direction from the boundary between the mounting portion 15 and the contact portion 11. H32 is at most 200 mm and can be arbitrarily selected from 180 mm, 160 mm, and 140 mm. In the illustrated configuration, the upper end 26a of the gripping portion 26 is lower than the upper end 22 of the main body portion 20, but the upper end 26a may coincide with the upper end 22.

[0063] The left-right width W21 of the gripping part 26 is preferably set within the range of 30 mm to 70 mm, regardless of its position in the longitudinal direction. Having the left-right width W21 within this range naturally encourages toddlers to grip the gripping part 26 with both hands rather than with one. This configuration allows even relatively young toddlers to avoid touching the touchscreen, preventing accidental operation and enabling stable operation. Furthermore, by gripping the gripping part 26 of the vibration device 1 with both hands, toddlers can feel the vibrations emitted from the vibration device 1 more broadly with their entire hands compared to holding it with one hand, resulting in a richer tactile experience. For toddlers in particular, the vibrational feedback provides a strong and memorable sensory stimulus, which is expected to deepen their interest in and understanding of the content.

[0064] Furthermore, if the left-right width W21 of the gripping portion 26 is less than 30 mm, the vibration device 1 becomes too thin, increasing the likelihood that infants will mistakenly grasp the tip portion 10. On the other hand, if the left-right width W21 of the gripping portion 26 exceeds 70 mm, the main body portion 20 may become too large and difficult for infants to hold. For this reason, it is preferable to set the left-right width W21 within the range of 30 mm to 70 mm.

[0065] It is preferable that the depth width D11 between the front 41 and the rear 42 is 15 mm or more.

[0066] In addition, the depth width D11 of the gripping portion 26 is set to be 23 / 30 or less of the left-right width W21. As a result, the overall shape of the gripping portion 26 is flat, allowing even a child's small hands to grasp it comfortably from the front and back. It is preferable that the depth width D21 of the gripping portion 26 be 15 mm or more. As mentioned above, the depth width D11 has a length less than 221 / 30 of the left-right width W21. Because the main body portion 20 has the left-right width W21 and depth width D11 as described above, the cross-sectional shape of the main body portion 20 perpendicular to the longitudinal direction can be a horizontally elongated rectangle, making it easy for a child to grasp with both hands.

[0067] As shown in Figure 8A, the gripping portion 26 is not limited to a form in which the left-right width and depth are approximately equal along the long axis, and there may be a mixture of portions in which at least one of the left-right width and depth is approximately equal or different.

[0068] In front and rear views, the left and right contours of the main body 20 are a single straight line parallel to the longitudinal direction in the configuration shown in Figure 8A. However, they may also be multiple straight lines inclined with respect to the longitudinal direction, for example, so that the width is shortened at the midpoint between the upper end 22 and the lower end 23 of the main body 20. Furthermore, they are not limited to straight lines but may be one or more curved lines.

[0069] In a side view, the front and rear contours of the main body 20 are a single straight line parallel to the longitudinal direction in the configuration shown in Figure 8B. However, they may also be multiple straight lines inclined with respect to the longitudinal direction, for example, such as in the intermediate portion between the upper end 22 and the lower end 23 of the main body 20, where the depth width is reduced. Furthermore, they are not limited to straight lines but may be one or more curved shapes.

[0070] In this specification, the left-right width of a certain part, such as the mounting portion 15, is the left-right length when the part is observed in a front view and a rear view; the depth of a certain part is the front-to-back length when the part is observed in a left side view and a right side view; and the height of a certain part is the up-and-down length when the part is observed in a front view, a rear view, and a left and right side view. [Explanation of Symbols]

[0071] 1: Vibration device 10:Tip 11: Contact area 14: Gap 16: Contact Member 20: Main body

Claims

1. A vibration device comprising a tip portion and a main body portion extending from the tip portion in a first direction along the long axis, wherein the device generates vibrations, The tip portion includes a contact portion that can contact a touchscreen and a mounting portion to which the contact portion is attached. The mounting portion comprises a mounting portion and an outer holding portion, and the mounting portion has a shaft portion in the first orientation in the longitudinal direction. The contact member is mounted on the shaft portion, and the remaining portion of the contact member is held between the outer holding portion and the mounting portion so that a part of the contact member is exposed as the contact portion. The contact portion has a length of 3.2 mm to 3.5 mm from the lower end of the outer holding portion in the direction opposite to the first direction in the longitudinal axis direction. The vibration device is characterized in that the contact portion has a curved surface having a radius of curvature of 4.5 mm or more and 5.3 mm or less.

2. A vibration device comprising a tip portion and a main body portion extending from the tip portion in a first direction in the longitudinal axis direction, wherein the device generates vibration, The tip portion includes a contact portion that can contact a touchscreen and a mounting portion to which the contact portion is attached. The contact portion has a length of 3.2 mm to 3.5 mm from the mounting portion in the direction opposite to the first direction in the longitudinal axis direction. The contact portion has a curved surface having a radius of curvature of 4.5 mm or more and 5.3 mm or less. A vibration device characterized in that the distance between the inner curved surface and the outer curved surface at the contact portion is 1.2 mm or more and 1.4 mm or less.

3. The vibration device according to claim 1, wherein the distance between the inner curved surface and the outer curved surface at the contact portion is 1.2 mm or more and 1.4 mm or less.

4. The outer holding portion is composed of the tip portions of the case member and the lid member, The vibration device according to claim 1 or 3, wherein the tip of the mounting portion protrudes from the tip of the outer holding portion.

5. The vibration device according to claim 1 or 3, wherein the gap between the contact member and the mounting portion is 0.7 mm or less in the direction of the long axis.

6. The vibration device according to claim 2, wherein the contact portion is configured such that a contact member is mounted on a mounting portion inside the mounting portion and a part of the contact member is exposed from the mounting portion, and the gap between the contact member and the mounting portion is 0.7 mm or less in the direction of the long axis.

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