Human support device and vibration generating device used therein

The human body support device effectively transmits vibrations to the body by using a vibration generator with an elastic member and expanding contact member, addressing skeletal structure interference and space constraints, ensuring efficient and flexible vibration distribution.

JP2026114666APending Publication Date: 2026-07-08FOSTER ELECTRIC CO LTD

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
FOSTER ELECTRIC CO LTD
Filing Date
2024-12-26
Publication Date
2026-07-08

AI Technical Summary

Technical Problem

Existing human body support devices struggle to effectively transmit sufficient vibrations to the human body while minimizing vibration transmission to the device's skeletal structure, often resulting in localized vibration challenges and space constraints for vibration actuators.

Method used

The human body support device incorporates a vibration generator with a linear actuator positioned to face the body, pressed against a cushioning material by an elastic member, and features an expanding contact member and additional support to enhance vibration transmission efficiency and area coverage.

Benefits of technology

This configuration ensures efficient transmission of vibrations to the human body, reduces skeletal structure vibration, optimizes space utilization for actuators, and increases positioning flexibility, allowing for targeted and widespread vibration distribution.

✦ Generated by Eureka AI based on patent content.

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Abstract

In a human body support device that transmits vibrations generated by a vibration generator to the human body via a cushioning material, the magnitude of the vibrations transmitted to the human body is made easier to ensure. [Solution] The human body support device 10 comprises a cushioning material 12 and a vibration generating device 14 having a vibration actuator 15. The vibration direction D1 of the vibration generating device 14 is directed toward the human body 90. When the human body support device 10 is supporting the human body 90, the vibration generating device 14 is pressed against the cushioning material 12 by an elastic member 19.
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Description

Technical Field

[0001] The present disclosure relates to a human body support device and a vibration generator used therefor.

Background Art

[0002] Patent Document 1 discloses a seat with a vibration unit. This seat with a vibration unit can be said to be a human body support device for transmitting the vibration generated by the vibration generator to the human body via a buffer material.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present disclosure is to make it easy to ensure the magnitude of the vibration transmitted to the human body in a human body support device for transmitting the vibration generated by a vibration generator to the human body via a buffer material.

Means for Solving the Problems

[0005] The human body support device according to the first aspect includes a buffer material and a vibration generator having a linear vibration actuator, and is a human body support device for transmitting the vibration generated by the vibration generator to the human body via the buffer material. The vibration direction of the vibration generator faces the human body, and in a state where the human body support device supports the human body, the vibration generator is pressed against the buffer material by an elastic member.

[0006] In this aspect, the human body support device includes a buffer material and a vibration generator having a vibration actuator, and is a human body support device for transmitting the vibration generated by the vibration generator to the human body via the buffer material.

[0007] Furthermore, in this embodiment, the vibration direction of the vibration generating device is directed towards the human body. Therefore, vibrations can be effectively transmitted to the human body.

[0008] Furthermore, in this embodiment, when the human body support device is supporting a human body, the vibration generating device is pressed against the cushioning material by an elastic member. Therefore, compared to an embodiment in which the vibration generating device is not pressed against the cushioning material when the human body support device is supporting a human body, vibrations can be transmitted to the cushioning material more efficiently. As a result, it is easier to ensure that the magnitude of vibrations transmitted to the human body is sufficient.

[0009] Human body support devices include, for example, chairs and beds. Chairs include, for example, gaming chairs and car seats. The applications of vibrations transmitted to the human body include tactile sound reproduction, ADAS (Advanced Driver Assistance Systems), and massage. The cushioning material is, for example, urethane foam or gel material. The vibration actuator is, for example, a linear resonant actuator (LRA). In the embodiments described later, the elastic member is a metal spring member (e.g., an S-spring) that supports the cushioning material, but the elastic member in this embodiment is not limited to this. For example, the elastic member may be a metal spring member that does not support the cushioning material. Also, for example, the elastic member may be part of the cushioning material. Also, for example, the elastic member may be a cushioning member provided separately from the cushioning material. In the embodiments described later, the vibration generating device is pressed against the cushioning material by the elastic member even when the human body support device is not supporting a human body. However, this embodiment is not limited to this. When the human body support device is not supporting a human body, the vibration generating device does not need to be pressed against the cushioning material.

[0010] In the second embodiment, the human body support device comprises a skeletal member, and the vibration generating device is supported on the skeletal member via the elastic member.

[0011] Incidentally, if the vibrations from the vibration generator are directly transmitted to the skeletal members of the human body support device, the entire human body support device will vibrate, making it difficult to transmit localized vibrations to the human body. Here, the vibration generator is supported by the skeletal member via an elastic member. Therefore, vibrations from the vibration generator are less likely to be transmitted to the skeletal member (frame) of the human body support device. Thus, according to this embodiment, it is easy to transmit partial vibrations to the human body.

[0012] In the third embodiment of the human body support device, in the first or second embodiment, the cushioning material has a recess, and at least a part of the vibration generating device is fitted into the recess.

[0013] In this embodiment, the cushioning material has a recess, and at least a portion of the vibration generating device is embedded in the recess of the cushioning material. This solves the problem of space constraints for the vibration actuator.

[0014] The human body support device according to the fourth embodiment, in any of the first to third embodiments, comprises a vibration generating device and an enlarged contact member integrated with the vibration actuator and having a contact plate-like portion larger than the size of the vibration actuator when viewed from the direction of vibration.

[0015] In this embodiment, the vibration generating device comprises a vibration actuator and an expanding contact member integrated with the vibration actuator. The expanding contact member has a contact plate-like portion that is larger than the size of the vibration actuator when viewed from the direction of vibration. Therefore, compared to embodiments in which the vibration generating device does not include an expanding contact member, vibrations can be transmitted over a wider area of ​​the cushioning material.

[0016] The human body support device according to the fifth embodiment, in the fourth embodiment, comprises an additional member, the expanding contact member supports the vibration actuator from one side in the vibration direction, and the additional member is integrated with the expanding contact member and also supports the vibration actuator from the other side in the vibration direction.

[0017] In this embodiment, the vibration generating device includes an additional member. The expanding contact member supports the vibration actuator from one side in the direction of vibration. The additional member is integrated with the expanding contact member and also supports the vibration actuator from the other side in the direction of vibration. Therefore, the vibration actuator is supported from both sides in the direction of vibration by the integrated expanding contact member and the additional member. Consequently, the vibration of the vibration actuator can be appropriately transmitted to the expanding contact member.

[0018] In the embodiments described later, the expanding contact member has a cylindrical holding portion that surrounds the vibration actuator, but the expanding contact member in this embodiment is not limited to this. For example, the expanding contact member may not have a cylindrical holding portion that surrounds the vibration actuator, and the additional member may have a cylindrical portion that surrounds the vibration actuator. In the embodiments described later, the enlarged contact member and the additional member are integrated by being joined with an adhesive. However, the means of integration are not limited to this, and they may also be fastened with fastening members such as screws, integrated by engaging claws, or a combination of these.

[0019] In the sixth embodiment, the human body support device, in the fifth embodiment, has a pair of corresponding openings corresponding to a pair of stopper release openings provided in the vibration actuator, the expanding contact member and the additional member.

[0020] In this embodiment, the enlarged contact member and the additional member have a pair of corresponding openings that correspond to a pair of stopper release openings provided in the vibration actuator. Therefore, it can accommodate vibration actuators that do not have stoppers on both sides in the direction of vibration.

[0021] In the human body support device according to the seventh aspect, in any one of the fourth to sixth aspects, the contact plate-shaped portion has an uneven shape on the surface that contacts the cushioning material.

[0022] In this aspect, the contact plate-shaped portion has an uneven shape on the surface that contacts the cushioning material. Therefore, displacement between the cushioning material and the vibration generating device can be suppressed.

[0023] In the human body support device according to the eighth aspect, in any one of the fourth to seventh aspects, the vibration actuator is disposed at a position deviated from the position that is the centroid of the contact plate-shaped portion.

[0024] In this aspect, the vibration actuator is disposed at a position deviated from the position that is the centroid of the contact plate-shaped portion. Therefore, the degree of freedom in the arrangement position of the vibration actuator with respect to the part of the human body to which vibration is to be transmitted increases.

[0025] In the human body support device according to the ninth aspect, in any one of the fourth to seventh aspects, the contact plate-shaped portion has a longitudinal shape with the first direction as the longitudinal direction, and the vibration actuator is disposed at a position deviated in the first direction from the center in the first direction of the contact plate-shaped portion. <XXX00099> In this aspect, the contact plate-shaped portion has a longitudinal shape with the first direction as the longitudinal direction, and the vibration actuator is disposed at a position deviated in the first direction from the center in the first direction of the contact plate-shaped portion. Therefore, vibration can be transmitted over a long range in the first direction, and the degree of freedom in the arrangement position of the vibration actuator in the first direction increases.

[0027] Note that the longitudinal shape is, for example, a rectangle, but it may also be an ellipse or other shape.

[0028] In the human body support device according to the tenth aspect, in the ninth aspect, the human body support device is a chair having a backrest, and the vibration generating device is disposed at a position corresponding to the waist in the backrest in a state where the first direction is oriented horizontally.

[0029] In this embodiment, the human body support device is a chair with a backrest. The vibration generating device is positioned on the backrest at a location corresponding to the waist, with its first direction facing horizontally. Therefore, when it is desired to transmit vibration to the waist portion of the occupant, the degree of freedom in positioning the vibration actuator in the width direction is increased.

[0030] The human body support device according to the 11th embodiment is, in any of the 1st to 10th embodiments, the human body support device comprises a metal spring member that supports the cushioning material, and the elastic member is the spring member.

[0031] In this embodiment, the human body support device includes a metal spring member that supports the cushioning material, and the elastic member is the spring member. Therefore, the metal spring member that supports the cushioning material can be effectively utilized.

[0032] The human body support device according to the 12th embodiment, in any of the 4th to 7th embodiments, comprises a metal spring member that supports the cushioning material, the elastic member is the spring member, and the contact plate-shaped portion is sandwiched between the cushioning material and the spring member.

[0033] In this embodiment, the human body support device includes a metal spring member that supports the cushioning material, and the elastic member is the spring member. The contact plate-shaped portion is sandwiched between the cushioning material and the spring member. Therefore, a vibration generating device equipped with an expanding contact member can be efficiently mounted. [Effects of the Invention]

[0034] According to this disclosure, in a human body support device for transmitting vibrations generated by a vibration generator to the human body via a cushioning material, it is possible to easily ensure the magnitude of the vibrations transmitted to the human body. [Brief explanation of the drawing]

[0035] [Figure 1] This is a schematic cross-sectional view showing a human body support device. [Figure 2]This is a perspective view showing an example of the structure of a vibration generating device. [Figure 3] This is a cross-sectional view showing an example of the structure of a vibration generating device. [Figure 4] This is a schematic diagram showing the structure of a chair backrest as a human body support device. [Figure 5] This is a schematic cross-sectional view showing a first modified example of a human body support device. [Figure 6] This is a schematic cross-sectional view showing a second modified example of a human body support device. [Modes for carrying out the invention]

[0036] The embodiments of this disclosure will be described below.

[0037] (Body support device 10) Figure 1 is a schematic cross-sectional view showing the human body support device 10 according to this embodiment.

[0038] The human body support device 10 is a device for transmitting vibrations generated by a vibration generator 14 to a human body 90 via a cushioning material 12. The human body support device 10 comprises a cushioning material 12, a vibration generator 14 having a vibration actuator 15, a skin 17 covering the cushioning material 12, a skeletal member 18 constituting the skeleton of the human body support device 10, and an elastic member 19.

[0039] The cushioning material 12 is made of a flexible and elastic material and functions to distribute body pressure. The cushioning material 12 is made of, for example, urethane foam.

[0040] The vibration generator 14 is positioned opposite the human body 90 to the cushioning material 12, with the vibration direction D1 facing the human body 90. The vibration generator 14 is supported by the skeletal member 18 via an elastic member 19. In Figure 1, the elastic member 19 is schematically depicted as a coil spring, but the configuration of the elastic member 19 is not particularly limited. When the human body support device 10 is supporting the human body 90, the vibration generator 14 is pressed against the cushioning material 12 by the elastic member 19.

[0041] The vibration generating device 14 comprises a vibration actuator 15 and an enlarged contact member 16 integrated with the vibration actuator 15.

[0042] The enlarged contact member 16 has a contact plate-like portion 22 that is larger than the size of the vibration actuator 15 when viewed from the vibration direction D1. The size of the contact plate-like portion 22 (area when viewed from the vibration direction D1) is, for example, twice or more (more preferably four times or more) the size (area) of the vibration actuator 15 when viewed from the vibration direction D1.

[0043] (Specific structure of vibration generating device 14) Figures 2 and 3 show an example of the specific structure of the vibration generating device 14.

[0044] The vibration generating device 14 includes a vibration actuator 15, an enlarged contact member 16 integrated with the vibration actuator 15, and an additional member 30.

[0045] The enlarged contact member 16 has a contact plate-shaped portion 22 and a holding portion 24 for holding the vibration actuator 15.

[0046] The contact plate-like portion 22 has a substantially flat shape with its thickness direction oriented in the direction of vibration. The contact plate-like portion 22 has a rectangular shape with a specific direction (first direction) as its longitudinal direction. The first direction is a specific direction among those perpendicular to the direction of vibration.

[0047] The holding portion 24 has a cylindrical shape so as to surround the vibration actuator 15. The holding portion 24 is formed to protrude from the contact plate-shaped portion 22 to the other side in the vibration direction. The inner circumferential surface 24a of the cylindrical holding portion 24 and the outer circumferential surface of the vibration actuator 15 are joined together by an adhesive or the like.

[0048] The retaining portion 24 has notches 25. The notches 25 are notches that open to the other side in the direction of vibration. Two notches 25 are formed at positions 180 degrees apart in the circumferential direction.

[0049] The additional member 30 is positioned on the opposite side of the vibration direction to the vibration actuator 15, which is located inside the holding portion 24. The additional member 30 is joined to the holding portion 24 with an adhesive or the like. As a result, the additional member 30 is integrated with the expanding contact member 16. The additional member 30 may also be joined to the vibration actuator 15 with an adhesive or the like.

[0050] With the above configuration, the expanding contact member 16 supports the vibration actuator 15 from one side in the vibration direction D1, while the additional member 30 supports the vibration actuator 15 from the other side in the vibration direction D1.

[0051] Multiple protrusions 28 are formed on the surface of the contact plate-like portion 22 on one side in the direction of vibration. As a result, the contact plate-like portion 22 has an uneven shape on the surface that contacts the cushioning material 12. The shape of the protrusions 28 is, for example, circular when viewed from one side in the direction of vibration.

[0052] As shown in Figure 3, a protrusion 29 corresponding to the holding portion is formed on the surface 22a of the contact plate-like portion 22 on one side in the vibration direction at the position corresponding to the holding portion 24. The amount of protrusion of the holding portion corresponding protrusion 29 is the same as that of the protrusion 28. The space inside the holding portion 24 is expanded to one side in the vibration direction than the surface 22b of the contact plate-like portion 22 on the other side in the vibration direction. As a result, a part of the vibration actuator 15 is positioned to one side in the vibration direction than the surface 22b of the contact plate-like portion 22 on the other side in the vibration direction.

[0053] The enlarged contact member 16 and the additional member 30 have a pair of corresponding openings 26, 36 that correspond to a pair of stopper release openings provided in the vibration actuator 15. The pair of stopper release openings are openings provided on both sides of the vibration direction of the movable element of the vibration actuator 15, and work to release the limit on the amplitude of the movable element. The pair of stopper release openings is a common configuration for conventional vibration actuators 15, and a detailed explanation is omitted.

[0054] The holding portion 24 is provided at a position offset from the centroid of the contact plate-shaped portion 22. The centroid of the contact plate-shaped portion 22 refers to the position that is the centroid when the contact plate-shaped portion 22 is viewed from its thickness direction. As a result, the vibration actuator 15 is positioned at a position offset from the centroid of the contact plate-shaped portion 22.

[0055] Specifically, the holding portion 24 is located at a position offset in the longitudinal direction (first direction) from the longitudinal center (first direction center) of the contact plate-shaped portion 22. As a result, the vibration actuator 15 is positioned at a position offset in the first direction from the first direction center of the contact plate-shaped portion 22.

[0056] Figure 4 shows an example of the structure when the human body support device of this disclosure is applied to a chair 10A having a backrest 60. Figure 4 is a schematic diagram of the internal structure of the backrest 60 as seen from the rear.

[0057] The backrest 60 of the chair 10A comprises a back cushioning material 12A, a metal spring member 62 that supports the back cushioning material 12A, and a plurality (2) of vibration generating devices 14.

[0058] The spring members 62 are so-called S-springs, and multiple spring members are provided. The multiple spring members 62 are arranged at intervals in the vertical direction of the backrest 60. Both ends of each of the multiple spring members 62 are supported by a frame-shaped support member 64. The frame-shaped support member 64 is fixed to a skeletal member (frame of chair 10A) which is not shown.

[0059] Multiple vibration generators 14 are positioned on the backrest 60 at the waist, with their first direction facing horizontally.

[0060] The contact plate-shaped portion 22 of the vibration generating device 14 is sandwiched between the cushioning material 12 and multiple (two) spring members 62. Therefore, in the example shown in Figure 4, the spring members 62 function as elastic members 19 that press the vibration generating device 14 against the cushioning material 12. The vibration actuator 15 protrudes from between the two spring members 62 toward the rear side (away from the human body 90).

[0061] Furthermore, the vibration generator 14 does not necessarily have to be fixed to the spring member 62. In other words, the contact plate-shaped portion 22 of the vibration generator 14 is simply sandwiched between the cushioning material 12 and the spring member 62, and does not need to be fixed to the spring member 62. In this case, the work of fixing the vibration generator 14 to the spring member 62 becomes unnecessary, simplifying the manufacture of the human body support device 10.

[0062] As shown in Figure 4, a portion of the contact plate-shaped part 22 of the vibration generator 14 is positioned between the cushioning material 12 and the frame-shaped support member 64. If the vibration generator 14 is not fixed to the spring member 62, a portion of the contact plate-shaped part 22 of the vibration generator 14 may be fixed to the frame-shaped support member 64. In this case, it is possible to prevent the position of the vibration generator 14 from shifting.

[0063] Figure 5 is a schematic diagram showing a first modified example. In the structure shown in Figure 1, the vibration generating device 14 comprises a vibration actuator 15 and an expanding contact member 16. However, the vibration generating device of this disclosure is not limited to this. The vibration generating device of this disclosure does not necessarily have to include an expanding contact member, for example, the vibration generating device 14 included in the human body support device 110 according to the first modified example shown in Figure 5.

[0064] Figure 6 is a schematic diagram showing a second modified example. As shown in Figure 6, in the human body support device 210 according to the second modified example, the cushioning material 12 has a recess 12a. At least a part of the vibration generating device 14 (almost the entire part in the example of Figure 6) is embedded in the recess 12a of the cushioning material 12.

[0065] In Figure 6 and other figures, the elastic member 19 is schematically depicted as a coil spring, but the elastic member 19 in the human body support device 210 may be a plurality of spring members 62 as shown in Figure 4. This allows for even more space on the back side of the contact plate-like portion 22.

[0066] In Figure 6, the vibration actuator 15 of the vibration generator 14 is located in the recess 12a of the cushioning material 12. However, the recess 12a may be shaped to accommodate the entire vibration generator 14, so that the entire vibration generator 14, including the vibration actuator 15 and the expanding contact member 16, fits into the recess 12a.

[0067] In Figures 1 and 6, the elastic member 19 is positioned to directly contact the expanding contact member 16 (contact plate-shaped member 22). However, another member may be placed between the elastic member 19 and the expanding contact member 16 (contact plate-shaped member 22) so that the elastic member 19 indirectly contacts the expanding contact member 16 (contact plate-shaped member 22).

[0068] <Effects and Effects> Next, the effects and advantages of this embodiment and its modified forms will be described.

[0069] In this embodiment, as shown in Figure 1, the human body support device 10 comprises a cushioning material 12 and a vibration generating device 14 having a vibration actuator 15, and is a human body support device 10 for transmitting vibrations generated by the vibration generating device 14 to the human body 90 via the cushioning material 12.

[0070] Furthermore, in this embodiment, the vibration direction D1 of the vibration generator 14 is directed towards the human body 90. Therefore, vibrations can be effectively transmitted to the human body 90.

[0071] Furthermore, in this embodiment, with the human body support device 10 supporting the human body 90, the vibration generator 14 is pressed against the cushioning material 12 by the elastic member 19. Therefore, compared to an embodiment in which the vibration generator 14 is not pressed against the cushioning material 12 while the human body support device 10 is supporting the human body 90, vibrations can be transmitted to the cushioning material 12 more efficiently. As a result, it is easier to ensure that the magnitude of vibrations transmitted to the human body 90 is sufficient.

[0072] However, if the vibrations from the vibration generator 14 were directly transmitted to the skeletal member 18 of the human body support device 10, the entire human body support device 10 would vibrate, making it difficult to transmit localized vibrations to the human body 90. Here, the vibration generator 14 is supported by the skeletal member 18 via the elastic member 19. Therefore, the vibrations from the vibration generator 14 are less likely to be transmitted to the skeletal member 18 (frame) of the human body support device 10. Thus, according to this embodiment, it is easy to transmit localized vibrations to the human body 90.

[0073] Furthermore, in the second modified example, as shown in Figure 6, the cushioning material 12 has a recess 12a, and at least a part of the vibration generating device 14 is embedded in the recess 12a of the cushioning material 12. Therefore, the problem of placement space for the vibration actuator 15 can be solved.

[0074] Furthermore, in this embodiment, as shown in Figure 2, the vibration generator 14 comprises a vibration actuator 15 and an expanding contact member 16 integrated with the vibration actuator 15. The expanding contact member 16 has a contact plate-like portion 22 that is larger than the size of the vibration actuator 15 when viewed from the vibration direction D1. Therefore, compared to an embodiment in which the vibration generator 14 does not include the expanding contact member 16 (see Figure 5), vibrations can be transmitted over a wider area of ​​the cushioning material 12.

[0075] Furthermore, in this embodiment, as shown in Figures 2 and 3, the vibration generator 14 includes an additional member 30. The expanding contact member 16 supports the vibration actuator 15 from one side in the vibration direction D1. The additional member 30 is integrated with the expanding contact member 16 and also supports the vibration actuator 15 from the other side in the vibration direction D1. Therefore, the vibration actuator 15 is supported from both sides in the vibration direction by the integrated expanding contact member 16 and the additional member 30. Consequently, the vibration of the vibration actuator 15 can be appropriately transmitted to the expanding contact member 16.

[0076] Furthermore, in this embodiment, as shown in Figure 3, the enlarged contact member 16 and the additional member 30 have a pair of corresponding openings 26 and 36 that correspond to a pair of stopper release openings provided in the vibration actuator 15. Therefore, it can be used with a vibration actuator 15 that does not have stoppers on both sides in the direction of vibration.

[0077] Furthermore, in this embodiment, as shown in Figure 3, the contact plate-like portion 22 has an uneven shape on the surface that contacts the cushioning material 12. Therefore, misalignment between the cushioning material 12 and the vibration generator 14 can be suppressed. In the modified example shown in Figure 6, the uneven shape is formed on the surface of the contact plate-like portion 22 on the side where the vibration actuator 15 is provided.

[0078] Furthermore, in this embodiment, as shown in Figure 4, the vibration actuator 15 is positioned at a location offset from the centroid of the contact plate-shaped portion 22. This increases the degree of freedom in positioning the vibration actuator 15 relative to the part of the human body 90 to which vibration is to be transmitted.

[0079] Furthermore, in this embodiment, as shown in Figure 4, the contact plate-like portion 22 has a longitudinal shape with the first direction as its longitudinal direction, and the vibration actuator 15 is positioned offset in the first direction from the center of the contact plate-like portion 22 in the first direction. This allows vibration to be transmitted over a long range in the first direction, and increases the degree of freedom in the positioning of the vibration actuator 15 in the first direction. In addition, the vibration actuator 15 may be positioned offset from the center in the short direction of the contact plate-like portion 22. Furthermore, the vibration actuator 15 may be positioned offset from the center in both the longitudinal and short directions of the contact plate-like portion 22. This further increases the degree of freedom in the positioning of the vibration actuator 15.

[0080] Furthermore, in this embodiment, as shown in Figure 4, the human body support device 10 is a chair 10A having a backrest 60. The vibration generator 14 is positioned on the backrest 60 at a location corresponding to the waist, with its first direction facing horizontally. Therefore, when it is desired to transmit vibration to the waist portion of the occupant, the degree of freedom in positioning the vibration actuator 15 in the width direction is increased.

[0081] Furthermore, in this embodiment, as shown in Figure 4, the human body support device 10 includes a metal spring member 62 that supports the cushioning material 12, and the elastic member 19 is the spring member 62. In other words, the spring member 62 functions as an elastic member 19 that presses the vibration generating device 14 against the cushioning material 12. Therefore, the metal spring member 62 that supports the cushioning material 12 can be effectively utilized.

[0082] Furthermore, in this embodiment, as shown in Figure 4, the contact plate-shaped portion 22 is sandwiched between the cushioning material 12 and the spring member 62. Therefore, the vibration generating device 14 equipped with the expanding contact member 16 can be efficiently mounted.

[0083] While preferred embodiments of this disclosure have been described above, this disclosure is not limited to the embodiments described above. [Explanation of symbols]

[0084] 10 Body support equipment 10A chair (human body support device) 12 Cushioning material 12A Back cushioning material (buffering material) 12a Recess 14. Vibration Generator 15. Vibration Actuator 16. Enlarged contact member 18. Structural members 19 Elastic members 22 Contact plate-like portion 26,36 Corresponding openings 30 Additional parts 62. Spring members (elastic members) 90 human body 110 Body support equipment 210 Human Support Device

Claims

1. Cushioning material and A vibration generating device having a vibration actuator, Equipped with, A human body support device for transmitting vibrations generated by the vibration generating device to the human body via the cushioning material, The vibration direction of the aforementioned vibration generating device is directed towards the human body. When the human body support device is supporting a human body, the vibration generating device is pressed against the cushioning material by the elastic member. Human body support equipment.

2. The aforementioned human body support device comprises a skeletal member, The vibration generating device is supported by the skeletal member via the elastic member. The human body support device according to claim 1.

3. The cushioning material has a recess, At least a part of the vibration generating device is in a state where it is inserted into the recess. The human body support device according to claim 1.

4. The vibration generating device is The vibration actuator and, An enlarged contact member is integrated with the vibration actuator and has a contact plate-shaped portion that is larger than the size of the vibration actuator when viewed from the direction of vibration, Equipped with, The human body support device according to claim 1.

5. The vibration generating device includes additional members, The enlarged contact member supports the vibration actuator from one side in the direction of vibration, The additional member is integrated with the enlarged contact member and supports the vibration actuator from the other side in the vibration direction. The human body support device according to claim 4.

6. The enlarged contact member and the additional member have a pair of corresponding openings that correspond to a pair of stopper release openings provided in the vibration actuator. The human body support device according to claim 5.

7. The contact plate-like portion has an uneven surface that contacts the cushioning material. The human body support device according to claim 4.

8. The vibration actuator is positioned at a location offset from the centroid of the contact plate-shaped portion. The human body support device according to claim 4.

9. The contact plate-like portion has a longitudinal shape with the first direction as its longitudinal direction, The vibration actuator is positioned at a location offset in the first direction from the first center of the contact plate-shaped portion. The human body support device according to claim 4.

10. The aforementioned human body support device is a chair having a backrest. The vibration generating device is positioned on the backrest at a location corresponding to the waist, with the first direction oriented horizontally. The human body support device according to claim 9.

11. The human body support device comprises a metal spring member that supports the cushioning material, The elastic member is the spring member. The human body support device according to claim 1.

12. The human body support device comprises a metal spring member that supports the cushioning material, The elastic member is the spring member, The contact plate-like portion is sandwiched between the cushioning material and the spring member. The human body support device according to claim 4.