Vehicle vibration transmission system

Abstract

[Problem] To suppress unwanted vibration noise while also transmitting necessary information to an occupant. [Solution] The vehicular vibration transmission system comprises a vibration transmission device (112) and a vibration noise suppression device (113). The vibration transmission device is provided for a seat (102) in a vehicle. The vibration transmission device transmits vibrations to an occupant. The vibration noise suppression device is provided for the vehicle. The vibration noise suppression device suppresses the noise of the vibrations caused by the vibration transmission device. By providing this configuration, unwanted vibration noise is suppressed while also transmitting necessary information to the occupant through the vibrations.

Description

Technical Field

[0001] The present invention relates to a vehicle vibration transmission system.

Background Art

[0002] Patent Document 1 discloses an information providing device for an autonomous vehicle. According to the information providing device, information can be provided by vibration.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the information providing device described in Patent Document 1, unnecessary vibration noise is transmitted to the occupant. Therefore, the occupant may feel uncomfortable.

[0005] In view of the above background, an object of the present invention is to suppress unnecessary vibration noise while transmitting necessary information to the occupant.

Means for Solving the Problems

[0006] In order to solve the above problems, one aspect of the present invention is a vehicle vibration transmission system, including a vibration transmission device (112) provided on a seat (102) of the vehicle for transmitting vibration to an occupant, and a vibration noise suppression device (113) provided on the vehicle for suppressing the sound of vibration by the vibration transmission device.

[0007] According to this aspect, it is possible to suppress unnecessary vibration noise while transmitting necessary information to the occupant.

[0008] In the above embodiment, the vibration noise suppression device may output a vibration waveform that is in opposite phase to the vibration waveform of the vibration transmission device.

[0009] According to this embodiment, unwanted vibration noise can be suppressed more reliably.

[0010] In the above embodiment, the vibration transmission device may transmit vibrations to a part of the occupant's body, and the vibration noise suppression device may transmit vibrations to another part of the occupant's body.

[0011] According to this configuration, necessary information can be transmitted to the occupants more reliably while unnecessary vibration noise can be suppressed more effectively.

[0012] In the above embodiment, the vibration noise suppression device may be attached to the frame (117) of the seat.

[0013] According to this embodiment, vibration noise of the frame can be suppressed.

[0014] In the above embodiment, the vibration transmission device and the vibration noise suppression device do not need to operate if the seat belt is not fastened to the seat.

[0015] According to this embodiment, the generation of unnecessary vibrations and vibration noises can be suppressed.

[0016] In the above embodiment, the vibration transmission device and the vibration noise suppression device do not need to operate when the child seat is attached to the seat.

[0017] According to this embodiment, the generation of unnecessary vibrations and vibration noises can be suppressed.

[0018] In the above embodiment, the vibration transmission device and the vibration noise suppression device may be controlled to operate based on the occupant's condition when the occupant's condition is detected by the biosensor.

[0019] According to this aspect, generation of unnecessary vibration and vibration noise can be suppressed.

[0020] In the above aspect, the vibration noise suppression device may absorb the vibration sound of the vibration transmission device.

[0021] According to this aspect, unnecessary vibration noise can be suppressed with a simple configuration.

[0022] In the above aspect, the vibration noise suppression device may be attached to the frame.

[0023] According to this aspect, vibration of the frame can be suppressed.

[0024] In order to solve the above problems, one aspect of the present invention is a vehicle vibration transmission system, comprising: a plurality of vibration transmission devices (120A, 120B) provided on a seat of the vehicle and transmitting vibration to an occupant; and a vibration noise suppression device (113) provided on the vehicle and suppressing the vibration sound caused by the plurality of vibration transmission devices.

[0025] According to this aspect, unnecessary vibration noise can be suppressed while transmitting necessary information to the occupant.

[0026] In the above aspect, at least one of the plurality of vibration transmission devices may change the vibration frequency.

[0027] According to these aspects, it is possible to make the occupant feel as if the vibration is moving.

Effects of the Invention

[0028] One aspect of the present invention is a vehicle vibration transmission system, comprising: a vibration transmission device (112) provided on a seat (102) of the vehicle and transmitting vibration to an occupant; and a vibration noise suppression device (113) provided on the vehicle and suppressing the vibration sound caused by the vibration transmission device.

[0029] According to this configuration, it is possible to transmit necessary information to the occupants while suppressing unnecessary vibration noise.

[0030] In the above embodiment, the vibration noise suppression device may output a vibration waveform that is in opposite phase to the vibration waveform of the vibration transmission device.

[0031] According to this embodiment, unwanted vibration noise can be suppressed more reliably.

[0032] In the above embodiment, the vibration transmission device may transmit vibrations to a part of the occupant's body, and the vibration noise suppression device may transmit vibrations to another part of the occupant's body.

[0033] According to this configuration, necessary information can be transmitted to the occupants more reliably while unnecessary vibration noise can be suppressed more effectively.

[0034] In the above embodiment, the vibration noise suppression device may be attached to the frame (117) of the seat.

[0035] According to this embodiment, vibration noise of the frame can be suppressed.

[0036] In the above embodiment, the vibration transmission device and the vibration noise suppression device do not need to operate if the seat belt is not fastened to the seat.

[0037] According to this embodiment, the generation of unnecessary vibrations and vibration noises can be suppressed.

[0038] In the above embodiment, the vibration transmission device and the vibration noise suppression device do not need to operate when the child seat is attached to the seat.

[0039] According to this embodiment, the generation of unnecessary vibrations and vibration noises can be suppressed.

[0040] In the above embodiment, the vibration transmission device and the vibration noise suppression device may be controlled to operate based on the occupant's condition when the occupant's condition is detected by the biosensor.

[0041] According to this embodiment, the generation of unnecessary vibrations and vibration noises can be suppressed.

[0042] In the above embodiment, the vibration noise suppression device may absorb the vibration noise of the vibration transmission device.

[0043] According to this embodiment, unnecessary vibration noise can be suppressed with a simple configuration.

[0044] In the above embodiment, the vibration noise suppression device may be attached to the frame.

[0045] According to this embodiment, frame vibrations can be suppressed.

[0046] To solve the above problems, one aspect of the present invention is a vibration transmission system for a vehicle, comprising: a plurality of vibration transmission devices (120A, 120B) provided on the seat of the vehicle and transmitting vibrations to the occupant; and a vibration noise suppression device (113) provided on the vehicle and suppressing the vibration noise from the plurality of vibration transmission devices.

[0047] According to this configuration, it is possible to transmit necessary information to the occupants while suppressing unnecessary vibration noise.

[0048] In the above embodiment, at least one of the plurality of vibration transmission devices may change the vibration frequency.

[0049] These methods can make the occupants feel as if vibrations are moving. [Brief explanation of the drawing]

[0050] [Figure 1] Perspective view of the sheet according to the first embodiment [Figure 2] Schematic diagram of the vibration transmission system [Figure 3] Schematic diagram of the first example of a vibration transmission device. [Figure 4] Schematic diagram of the second example of a vibration transmission device. [Figure 5] Diagram illustrating the vibration of a vibration transmission system. [Figure 6] Diagram illustrating heat dissipation using a vibration transmission system. [Figure 7] Schematic diagram of the vibration transmission system according to the second embodiment [Figure 8] Schematic diagram of the vibration transmission system according to the third embodiment [Figure 9] Schematic diagram of the vibration transmission system according to the fourth embodiment. [Figure 10] Schematic diagram of the vibration transmission system according to the fifth embodiment. [Figure 11] Perspective view of the sheet according to the sixth embodiment [Figure 12] Front view of the pad [Figure 13] Front view of the pad according to the seventh embodiment [Figure 14] Perspective view of the sheet according to the eighth embodiment [Figure 15] Schematic diagram of key parts in the embankment section of the sheet [Figure 16] Perspective view of the sheet according to the 9th embodiment [Figure 17] Cross-sectional view of the child seat mounting area with the child seat connector connected to the anchor. [Figure 18] Cross-sectional view of the child seat mounting area when the lid is in the closed position. [Figure 19] Front view of the lid [Figure 20] Rear view of the lid [Figure 21] Cross-sectional view of the child seat mounting area when the lid is in the operating position. [Modes for carrying out the invention]

[0051] The following describes an example of applying the vehicle vibration transmission device according to the present invention to an automobile seat, with reference to the drawings.

[0052] (First Embodiment) In Figure 1, the floor 101 forms the floor surface of the vehicle. The seat 102 is installed on the floor 101. The seat 102 comprises a seat body 103, a rotating device 104, a sliding device 105, and a reclining device 106.

[0053] The seat body 103 comprises a seat cushion 107, a seat back 108, and a headrest 109. The seat back 108 is provided at the rear end of the seat cushion 107. The headrest 109 is provided at the upper end of the seat back 108.

[0054] The sliding device 105 comprises a pair of lower rails 110 and a pair of upper rails 111. The pair of lower rails 110 are provided on the floor 101 with their longitudinal direction in the front-rear direction. The pair of upper rails 111 are provided on the underside of the seat cushion 107 with their longitudinal direction in the front-rear direction. The pair of upper rails 111 are each guided in the front-rear direction by the pair of lower rails 110.

[0055] The rotating device 104 is provided between the upper rail 111 of the sliding device 105 and the seat cushion 107. The rotating device 104 supports the seat cushion 107 so that it can rotate around a vertical axis relative to the upper rail 111.

[0056] The reclining device 106 connects the rear end of the seat cushion 107 to the lower end of the seat back 108. The reclining device 106 supports the seat back 108 so that it can rotate around a horizontal axis relative to the seat cushion 107. The reclining device 106 supports the seat back 108 at any angle relative to the seat cushion 107.

[0057] As shown in Figure 2, the vibration transmission system comprises a vibration transmission device 112, a vibration noise suppression device 113, and a control device 114. The vibration transmission device 112 is embedded on one side of the seat surface of the seat cushion 107. For example, the vibration transmission device 112 has the function of vibrating using a piezoelectric element. The vibration noise suppression device 113 is embedded on the other side of the seat surface of the seat cushion 107. For example, the vibration noise suppression device 113 has the function of vibrating using a piezoelectric element. For example, the control device 114 is an engine control unit. The control device 114 controls the vibration transmission device 112 and the vibration noise suppression device 113. For example, the control device 114 controls the vibration transmission device 112 and the vibration noise suppression device 113 in order to transmit necessary information to the occupant through vibration.

[0058] The vibration transmission device 112 generates a first vibration under the control of the control device 114. The first vibration is transmitted to the occupant. Specifically, the first vibration is transmitted to a part of the occupant's body. More specifically, the first vibration is transmitted to the occupant's right thigh.

[0059] The vibration noise suppression device 113 generates a second vibration under the control of the control device 114. The second vibration is transmitted to the occupant. Specifically, the second vibration is transmitted to other parts of the occupant's body. More specifically, the second vibration is transmitted to the occupant's left thigh.

[0060] The first and second vibrations combine in the upper body of the occupant, resulting in the generation of a third vibration. In this case, the amplitude of the third vibration is smaller than that of the first and second vibrations. Consequently, the occupant receives a suppressed sound of the third vibration.

[0061] Next, a first example of the vibration transmission device 112 will be described using Figure 3. As shown in Figure 3, the seat cushion 107 comprises a pad 115 and a cover 116. The pad 115 is made of an elastic cushioning material such as polyurethane foam. The pad 115 comprises a recess 115A and a harness hole 115B. The recess 115A is formed on a part of the surface of the pad 115. The harness hole 115B is formed in the pad 115 so as to connect to the back side of the recess 115A. The cover 116 is made of the same material as the pad 115. The cover 116 is formed so as to fit into the recess 115A of the pad 115.

[0062] The vibration transmission device 112 comprises a main body 112A and a harness 112B. The main body 112A is provided to generate a first vibration. The main body 112A is housed in a recess 115A of the pad 115, shielded by the cover 116. One end of the harness 112B is connected to the back surface of the main body 112A. The harness 112B is housed in the back of the pad 115 along the harness hole 115B. Although not shown in detail, the other end of the harness 112B is electrically connected to the control device 114. The harness 112B shares a route with the harnesses of other electrical components.

[0063] The vibration noise suppression device 113 has the same configuration as the vibration transmission device 112.

[0064] Next, a second example of the vibration transmission device 112 will be described using Figure 4. The same reference numerals are used for parts that are the same as or corresponding to those in Figure 3. The explanation of such parts will be simplified or omitted as appropriate. As shown in Figure 4, the harness groove 115C is formed on the surface side of the pad 115. The harness groove 115C is formed to connect to one side of the recess 115A. The cover 116 is formed to fit into the recess 115A and the harness groove 115C of the pad 115. One end of the harness 112B is connected to one side of the main body 112A. The harness 112B is housed on the surface side of the pad 115 along the harness groove 115C, shielded by the cover 116. The vibration noise suppression device 113 has the same configuration as the vibration transmission device 112.

[0065] In Figure 5, A is the waveform of the first vibration generated by the vibration transmission device 112. B is the waveform of the second vibration generated by the vibration noise suppression device 113. C is the waveform of the third vibration, which is a combination of the first and second vibrations.

[0066] The first vibration is set to have a preset waveform. For example, the first vibration is set to have a sinusoidal shape. The second vibration is set to have a preset waveform. For example, the second vibration is set to have a sinusoidal shape. In this case, the second vibration is set to have a waveform that is in opposite phase to the waveform of the first vibration. Therefore, the amplitude of the third vibration is almost zero. As a result, almost no vibrational sound is generated corresponding to the third vibration.

[0067] As shown in Figure 6, the frame 117 supports the seat cushion 107. The pad 115 is provided with air passages 118. The air passages 118 include a first passage 118A, a second passage 118B, and a third passage 118C. The first passage 118A is formed along the surface of the pad 115 with its longitudinal direction horizontal. Although not shown in detail, one end of the first passage 118A connects to the external space of the seat cushion 107. The second passage 118B is formed with its longitudinal direction vertical. One end of the second passage 118B connects to the other end of the first passage 118A. The third passage 118C is formed along the back surface of the pad 115 with its longitudinal direction horizontal. One end of the third passage 118C connects to the other end of the second passage 118B.

[0068] The pump 119 is mounted on the frame 117. The exhaust port of the pump 119 is connected to the other end of the third passage 118C. The intake port of the pump 119 is connected to the external space below the seat cushion 107.

[0069] The pump 119 draws air in through the intake port in response to vibrations while the vehicle is in motion. The pump 119 then discharges the air through the exhaust port. In the air passage 118, the air passes through the third passage 118C, the second passage 118B, and the first passage 118A before being discharged to the outside of the seat cushion 107. As a result, the air in the air passage 118 is replaced. Consequently, heat buildup in the seat cushion 107 is suppressed.

[0070] According to the first embodiment described above, the vibration noise suppression device 113 suppresses the vibration noise from the vibration transmission device 112. Therefore, it is possible to transmit necessary information to the occupants through vibration while suppressing unnecessary vibration noise.

[0071] Furthermore, the vibration noise suppression device 113 outputs a vibration waveform that is in opposite phase to the vibration waveform of the vibration transmission device 112. Therefore, unwanted vibration noise can be suppressed more reliably.

[0072] Furthermore, the vibration transmission device 112 transmits vibrations to a part of the occupant's body, while the vibration noise suppression device 113 transmits vibrations to other parts of the occupant's body. This allows for more reliable transmission of necessary information to the occupant via vibration while more effectively suppressing unnecessary vibration noise.

[0073] Furthermore, if a seat belt is not fastened in seat 102, the vibration transmission device 112 and the vibration noise suppression device 113 do not need to be activated. In this case, the generation of unnecessary vibrations and vibration noises can be suppressed.

[0074] Furthermore, if the child seat is installed on the seat 102, the vibration transmission device 112 and the vibration noise suppression device 113 do not need to be operated. In this case, the generation of unnecessary vibrations and vibration noises can be suppressed.

[0075] Furthermore, the occupant's condition may be detected using a biosensor. In this case, the operation of the vibration transmission device 112 and the vibration noise suppression device 113 may be controlled depending on the occupant's condition. For example, if it is determined that the occupant is ignoring the vibration, the need for operation of the vibration transmission device 112 and the vibration noise suppression device 113 may be determined based on a preset mode. For example, if it is determined that the occupant has lost consciousness, the operation of the vibration transmission device 112 and the vibration noise suppression device 113 may be stopped. In these cases, the generation of unnecessary vibrations and vibration noises can be suppressed.

[0076] Furthermore, in at least one of the vibration transmission device 112 and the vibration noise suppression device 113, it may be determined whether or not it is functioning normally based on the current flowing through the device.

[0077] Alternatively, an acceleration sensor may be attached to the sheet 102, and it may be determined whether at least one of the vibration transmission device 112 and the vibration noise suppression device 113 is functioning normally based on the detection results of the acceleration sensor.

[0078] Alternatively, a PTC heater may be attached to the underside of the vibration transmission device 112. In this case, the operation of the vibration transmission device 112 and the vibration noise suppression device 113 may be stopped when the temperature of the PTC heater becomes high. In this case, excessive temperature rise in the vibration of the vibration transmission device 112 and the vibration noise suppression device 113 can be suppressed.

[0079] Alternatively, a vehicle door speaker may be used as the vibration noise suppression device 113.

[0080] (Second Embodiment) In the second embodiment, parts identical or corresponding to those in the first embodiment are denoted by the same reference numerals. The redundant explanations of such parts are simplified or omitted as appropriate.

[0081] In Figure 7, the vibration transmission device 112 is positioned so as to be located directly below the occupant's ischial tuberosities when the occupant is seated in the seat 102. The vibration noise suppression device 113 is attached to the frame 117 below the vibration transmission device 112.

[0082] According to the second embodiment described above, the vibration noise suppression device 113 is attached to the frame 117. Therefore, vibration noise of the frame 117 can be suppressed.

[0083] Furthermore, the vibration transmission device 112 is positioned to be located directly beneath the occupant's ischial tuberosities. As a result, the occupant's ischial tuberosities receive relatively high pressure from the vibration transmission device 112. Consequently, even if the vibration of the vibration transmission device 112 is relatively small, the vibration can be transmitted to the occupant's ischial tuberosities.

[0084] Furthermore, it is preferable to avoid placing hard objects below the vibration transmission device 112. For example, it is preferable not to place springs below the vibration transmission device 112. For example, it is preferable to make holes in a resin pan below the vibration transmission device 112. In these cases, the comfort of the occupant when seated in the seat 102 can be improved.

[0085] (Third embodiment) In the third embodiment, parts identical or corresponding to those in the first embodiment are denoted by the same reference numerals. The redundant explanations of such parts are simplified or omitted as appropriate.

[0086] In Figure 8, the vibration noise suppression device 113 comprises a plurality of sound-absorbing materials 113A. For example, the plurality of sound-absorbing materials 113A are made of the same material as the pad 115. For example, the plurality of sound-absorbing materials 113A are integrally formed so that their surfaces are wavy. The vibration noise suppression device 113 is positioned to cover all surfaces of the vibration transmission device 112 except for the surface itself. The vibration noise suppression device 113 absorbs the sound of vibrations from the vibration transmission device 112.

[0087] According to the third embodiment described above, the vibration noise suppression device 113 absorbs the vibration noise of the vibration transmission device 112. Therefore, unwanted vibration noise can be suppressed with a simple configuration.

[0088] In this case, the contact area between the vibration noise suppression device 113 and the vibration transmission device 112 should be reduced as much as possible. In this case, unnecessary vibration noise can be suppressed more reliably.

[0089] Furthermore, the vibration transmission device 112 can be vibrated at a relatively low frequency. In this case, the vibration noise can be made less audible to passengers.

[0090] (Fourth Embodiment) In the fourth embodiment, parts identical or corresponding to those in the third embodiment are denoted by the same reference numerals. The redundant explanations of such parts are simplified or omitted as appropriate.

[0091] In Figure 9, the vibration noise suppression device 113 is a sound-absorbing material 113A. The vibration noise suppression device 113 is attached to the frame 117. For example, the vibration noise suppression device 113 covers the upper surface of the frame 117 below the vibration transmission device 112.

[0092] According to the fourth embodiment described above, the vibration noise suppression device 113 is attached to the frame 117. Therefore, vibrations of the frame 117 can be suppressed.

[0093] Alternatively, the contact area between the pad 115 and the frame 117 may be reduced without using the vibration noise suppression device 113. For example, the pad 115 and the frame 117 may be made to be in near-point contact. In this case as well, vibration of the frame 117 can be suppressed.

[0094] (Fifth embodiment) In the fifth embodiment, parts identical or corresponding to those in the second embodiment are denoted by the same reference numerals. The redundant explanations of such parts are simplified or omitted as appropriate.

[0095] As shown in Figure 10, the first vibration transmission device 120A is positioned to one side of the occupant's ischial tuberosities when the occupant is seated on the seat 102. The second vibration transmission device 120B is positioned to the other side of the occupant's ischial tuberosities when the occupant is seated on the seat 102. At least one of the first vibration transmission device 120A and the second vibration transmission device 120B is configured to change the vibration frequency.

[0096] For example, the first vibration transmission device 120A and the second vibration transmission device 120B vibrate at the same frequency. For example, when the first vibration transmission device 120A vibrates at 100 Hz, the second vibration transmission device 120B also vibrates at 100 Hz. For example, the first vibration transmission device 120A and the second vibration transmission device 120B vibrate at different frequencies. For example, when the first vibration transmission device 120A vibrates at 100 Hz, the second vibration transmission device 120B vibrates at 50 Hz.

[0097] The vibration noise suppression device 113 suppresses the vibration noise of the first vibration transmission device 120A and the vibration noise of the second vibration transmission device 120B. For example, the vibration noise suppression device 113 alternately outputs a vibration waveform that is out of phase with the vibration waveform of the first vibration transmission device 120A and a vibration waveform that is out of phase with the vibration waveform of the second vibration transmission device 120B at a preset time interval.

[0098] According to the fifth embodiment described above, the vibration noise suppression device 113 suppresses the vibration noise of the first vibration transmission device 120A and the vibration noise of the second vibration transmission device 120B. Therefore, it is possible to transmit necessary information to the occupants through vibration while suppressing unnecessary vibration noise.

[0099] Furthermore, the first vibration transmission device 120A and the second vibration transmission device 120B vibrate at the same frequency. Therefore, even if it is not possible to place the vibration transmission device at the desired location, vibration can be transmitted to passengers by positioning the desired location between the first vibration transmission device 120A and the second vibration transmission device 120B.

[0100] Furthermore, at least one of the first vibration transmission device 120A and the second vibration transmission device 120B is provided to change the vibration frequency. Therefore, by combining the vibration frequency of the first vibration transmission device 120A and the vibration frequency of the second vibration transmission device 120B, a new vibration of the combined frequency can be transmitted. In this case, by positioning the location to be vibrated between the first vibration transmission device 120A and the second vibration transmission device 120B, the occupants can be made to feel as if the vibration is moving. For example, the first vibration transmission device 120A and the second vibration transmission device 120B may be arranged in the front-to-back direction to make the occupants feel as if the vibration is moving in the direction of the vehicle's movement.

[0101] In addition, in the vibration transmission systems of the first to fifth embodiments, the vibration of the vibration transmission device 112, etc., may be increased. In this case, a massage function and a heater function can be added to the seat 102.

[0102] Furthermore, the vibration transmission systems of the first to fifth embodiments may be applied to electric vehicles. In this case, various types of information may be transmitted to the electric vehicle by vibration. For example, if the vehicle is driving in a way that results in poor fuel efficiency, this fact may be transmitted by vibration. For example, vibrations that mimic engine vibrations may be generated to convey the enjoyment of driving to the occupants. For example, the vibration frequency may be changed according to the speed to create a sense of acceleration. For example, a sense of realism may be created by combining sound and vibration. For example, vibrations that mimic the shifting of a manual gear may be transmitted.

[0103] Furthermore, in the vibration transmission systems of the first to fifth embodiments, a game may be played in which players guess the location of vibrations transmitted by the vibration transmission device 112, or vibrations may be synchronized with the game.

[0104] Furthermore, in the vibration transmission systems of the first to fifth embodiments, vibrations may be transmitted in conjunction with situations that are intended to appeal to the emotions of the occupants. For example, if it is desired to surprise the occupants with an image or the like, vibrations may be transmitted in accordance with the image or the like.

[0105] For example, information about the timing of vibration may be added to information such as video, and vibrations may be transmitted based on that timing information. For example, vibrations may be transmitted in a way that helps the occupants relax. For example, vibrations may be transmitted with different types, sizes, etc., depending on the type of music, movie, etc. For example, vibration sounds may be deliberately generated to stimulate the occupants' senses. For example, vibration sounds may be made to resonate in a way that helps the occupants relax.

[0106] For example, in the case of playing music, vibrations may be transmitted at a different frequency from the music only when a specific frequency is present. For example, if a crew member is visually impaired, vibrations corresponding to the music may be generated in real time, or vibrations may be used as Morse code to transmit textual information.

[0107] Furthermore, in the vibration transmission systems of the first to fifth embodiments, lighting that indicates vibration with light may be added to the vibration transmission device 112, etc. For example, lighting that indicates vibration with light may be added to the back of the seat back 108 to inform rear-seat occupants of the vibration.

[0108] Furthermore, the vibration transmission systems of the first to fifth embodiments may be applied to autonomous vehicles. In this case, various conditions during autonomous driving may be transmitted by vibration. For example, when an autonomous taxi is used as a shared car, the disembarking location may be transmitted to each passenger by vibration. For example, in an autonomous bus, sudden braking, sudden steering, etc., may be transmitted by vibration through seats 102, handrails, etc.

[0109] Furthermore, in the vibration transmission systems of the first to fifth embodiments, the intensity of the vibration may be changed according to the occupant's physique. In this case, the passenger's physique can be determined by the pressure sensor of the seat 102. For example, if the occupant is not in contact with the seat back 108, the system may automatically switch from vibration to sound to notify the occupant by voice or other means that their back is not in contact with the seat back 108.

[0110] Alternatively, multiple vibration transmission devices 112 may be provided, and the vibration transmission device 112 to be vibrated may be determined according to the occupant's seating posture. For example, if the occupant is seated predominantly on the right side of the seat 102, only the right-side vibration transmission device 112 should be vibrated. For example, if the occupant is seated predominantly on the left side of the seat 102, only the left-side vibration transmission device 112 should be vibrated.

[0111] (Sixth Embodiment) Patent document 2 (Japanese Patent Publication No. 2013-220322) discloses a seat for a vehicle. According to this seat, the biometric information of the occupant can be detected.

[0112] However, in the vehicle seat described in Patent Document 2, the occupants' body types vary. Therefore, depending on the occupant's body type, it may not be possible to accurately detect biological information.

[0113] In view of the above background, the present invention aims to accurately detect the biological information of crew members, regardless of their physical size.

[0114] To solve the above problems, the present invention provides a vehicle seat (202) comprising a plurality of capacitive sensors (212) arranged horizontally and provided on the surface side of the seat cushion (207) or the surface side of the seat back (208) of the vehicle seat (202).

[0115] According to this configuration, the crew's biological information can be detected with high accuracy, regardless of the crew member's physique.

[0116] In the above embodiment, a conductive skin (213) covering the plurality of capacitance sensors may be provided.

[0117] According to this embodiment, static electricity can be removed around multiple capacitance sensors.

[0118] In the above embodiment, the seat cushion or seat back is provided with a pad (214) having a plurality of slits (214A) formed in a flexibility-enhancing region, and the plurality of capacitance sensors may be provided on the surface of the flexibility-enhancing region of the pad.

[0119] According to this embodiment, the degree of contact between the number of capacitive sensors and the occupants can be improved.

[0120] In the above embodiment, the plurality of capacitance sensors may be arranged along each of the plurality of slits.

[0121] According to this embodiment, multiple slits can be used as markers when arranging multiple capacitive sensors.

[0122] In the above embodiment, the seat cushion or seat back may include a pad (214) provided on the seat cushion or seat back and having a plurality of recesses (214B) each housing the plurality of capacitance sensors, and a plurality of covers (215) fitted into each of the plurality of recesses while covering each of the plurality of capacitance sensors.

[0123] According to this embodiment, multiple capacitive sensors can be reliably held in the seat back.

[0124] In the above embodiment, the plurality of lids may be formed from the same material as the pads.

[0125] According to this embodiment, the pressure at contact between the capacitive sensor and the occupant can be appropriately maintained.

[0126] In the above embodiment, at least one of the plurality of capacitance sensors may be provided on the inner side of the ridge portion of the seat cushion or the ridge portion (208B) of the seat back.

[0127] According to this embodiment, the capacitive sensor can be made to contact the occupant more reliably.

[0128] In the above embodiment, the inner portion of the embankment may be provided to be movable in the width direction of the sheet.

[0129] According to this embodiment, the capacitance sensor 212 can be made to contact the occupant more reliably and with more appropriate pressure.

[0130] In the above embodiment, the present invention comprises a pad provided on the embankment and an air cell (216) provided on the surface of the pad, wherein at least one of the plurality of capacitance sensors may be attached to the air cell.

[0131] According to this embodiment, a simple configuration allows the capacitive sensor to more reliably and appropriately contact the occupant with the appropriate pressure.

[0132] In the sixth embodiment, parts identical or corresponding to those in the first embodiment are denoted by the same reference numerals. The redundant explanations of such parts are simplified or omitted as appropriate.

[0133] As shown in Figure 11, the floor 201 forms the floor surface of the vehicle. The seat 202 is installed on the floor 201. The seat 202 comprises a seat body 203, a rotating device 204, a sliding device 205, and a reclining device 206.

[0134] The seat body 203 comprises a seat cushion 207, a seat back 208, and a headrest 209. The seat back 208 is provided at the rear end of the seat cushion 207. The headrest 209 is provided at the upper end of the seat back 208.

[0135] The sliding device 205 comprises a pair of lower rails 210 and a pair of upper rails 211. The pair of lower rails 210 are provided on the floor 201 with their longitudinal direction in the front-rear direction. The pair of upper rails 211 are provided on the underside of the seat cushion 207 with their longitudinal direction in the front-rear direction. The pair of upper rails 211 are each guided in the front-rear direction by the pair of lower rails 210.

[0136] The rotating device 204 is provided between the upper rail 211 of the sliding device 205 and the seat cushion 207. The rotating device 204 supports the seat cushion 207 so that it can rotate around a vertical axis relative to the upper rail 211.

[0137] The reclining device 206 connects the rear end of the seat cushion 207 to the lower end of the seat back 208. The reclining device 206 supports the seat back 208 so that it can rotate around a horizontal axis relative to the seat cushion 207. The reclining device 206 supports the seat back 208 at any angle relative to the seat cushion 207.

[0138] Multiple capacitive sensors 212 are arranged horizontally on the surface side of the seat back 208. The multiple capacitive sensors 212 are positioned with their longitudinal direction vertical.

[0139] The outer layer 213 is conductive. Specifically, the outer layer 213 is formed by weaving conductive threads into it. The outer layer 213 covers the entire seat back 208, including the multiple capacitance sensors 212. The outer layer 213 is maintained in contact with the multiple capacitance sensors 212.

[0140] In Figure 12, the seat back 208 includes a pad 214. The pad 214 includes a flexibility enhancement region. In Figure 12, the region enclosed by the dotted line is the flexibility enhancement region. Multiple slits 214A are formed in a grid pattern within the flexibility enhancement region. Although not shown in detail, multiple capacitive sensors 212 are attached to the flexibility enhancement region of the pad 214.

[0141] According to the sixth embodiment described above, the multiple capacitive sensors 212 are arranged horizontally in the seat back 208. Therefore, the occupant's biological information can be detected with high accuracy regardless of the occupant's physique.

[0142] Furthermore, two appropriate capacitance sensors 212 may be selected to detect biological information depending on the size difference of the occupants. For example, if the occupant is large, the leftmost capacitance sensor 212 and the rightmost capacitance sensor 212 in Figure 1 may be selected to detect biological information. For example, if the occupant is small, the second capacitance sensor 212 from the left and the second capacitance sensor 212 from the right in Figure 1 may be selected to detect biological information.

[0143] Furthermore, two capacitance sensors 212 may be selected to detect biological information depending on the occupant's seating position. For example, if the occupant is seated predominantly on the right side of the seat 202, the rightmost capacitance sensor 212 and the second capacitance sensor 212 from the left in Figure 1 may be selected to detect biological information. For example, if the occupant is seated predominantly on the left side of the seat 202, the leftmost capacitance sensor 212 and the second capacitance sensor 212 from the right may be selected to detect biological information.

[0144] Furthermore, the longitudinal length of the capacitance sensor 212 can be set as appropriate. For example, the capacitance sensor 212 may be positioned to extend from the upper end to the lower end of the pad 214. Alternatively, the longitudinal length of the capacitance sensor 212 may be made as short as possible.

[0145] Furthermore, the number of capacitive sensors 212 can be set as appropriate. Increasing the number of capacitive sensors 212 allows for more precise adjustments to differences in passenger body size.

[0146] Furthermore, the skin 213 is conductive. Therefore, static electricity can be removed around the multiple capacitance sensors 212. As a result, the occupant's biological information can be detected with greater accuracy.

[0147] Furthermore, the seat belt may be made conductive. For example, conductive thread may be woven into the seat belt 202. This can eliminate static electricity from the occupant. As a result, the occupant's biological information can be detected with greater accuracy.

[0148] Furthermore, multiple capacitive sensors 212 are provided on the surface of the flexibility-enhancing region of the pad 214. This improves the degree of contact between the multiple capacitive sensors 212 and the occupant. As a result, the occupant's biological information can be detected with greater accuracy.

[0149] In this case, the durability of the pad 214 may be balanced by optimizing the spacing of the slits 214A. The shape of the slits 214A may also be vertical only, horizontal only, diagonal, or any other shape.

[0150] Alternatively, multiple capacitive sensors 212 may be arranged along each of the vertically elongated slits 214A. In this case, the multiple slits 214A should be formed at intervals equivalent to the spacing required when arranging multiple capacitive sensors 212 side by side. In this case, the multiple slits 214A can be used as markers when arranging multiple capacitive sensors 212.

[0151] Alternatively, the seat cushion of the seatback 208 itself may be moved to bring the sensor into close contact with the occupant. In this case, the method of moving the seat cushion can be set as appropriate. In this case, the occupant's biometric information can be detected with greater accuracy.

[0152] (Seventh Embodiment) In the seventh embodiment, parts identical or corresponding to those in the sixth embodiment are denoted by the same reference numerals. The redundant explanations of such parts are simplified or omitted as appropriate.

[0153] Figure 13 shows the main part of the pad 214. As shown in Figure 13, the pad 214 has recesses 214B. Although not shown in detail, multiple recesses 214B are formed. The multiple recesses 214B are arranged horizontally. Each of the multiple recesses 214B houses a multiple capacitance sensor 212. The cover 215 is made of the same material as the pad 214. Although not shown in detail, multiple covers 215 are provided. The multiple covers 215 are fitted into each of the multiple recesses 214B, covering each of the multiple capacitance sensors 212.

[0154] According to the seventh embodiment described above, the multiple covers 215 are fitted into each of the multiple recesses 214B while covering each of the multiple capacitance sensors 212. Therefore, the multiple capacitance sensors 212 can be securely held in the seat back 208.

[0155] Furthermore, the cover 215 is made of the same material as the pad 214. This allows for proper maintenance of the pressure when the capacitive sensor 212 is in contact with the occupant. As a result, the occupant's biological information can be detected with greater accuracy.

[0156] Furthermore, the number of recesses 214B in the pad 214 may be greater than the number of capacitive sensors 212. In this case, the number of recesses 214B to house the capacitive sensors 212 should be appropriately determined considering the passenger's physique. In this case, the passenger's biometric information can be detected with greater accuracy, regardless of the passenger's physique.

[0157] (Eighth embodiment) In the eighth embodiment, parts identical or corresponding to those in the first embodiment are denoted by the same reference numerals. The redundant explanations of such parts are simplified or omitted as appropriate.

[0158] As shown in Figure 14, in the seat back 208, one of the pair of raised sections 208A protrudes forward from one side of the seating area. The other of the pair of raised sections 208A protrudes forward from the other side of the seating area. In the pair of raised sections 208A, the inner surface is provided to be movable in the width direction of the seat 202.

[0159] At least one of the multiple capacitance sensors 212 is provided on the ridge portion 208A of the seat back 208. In Figure 14, the rightmost capacitance sensor 212 is housed in the inner part of one of the pair of ridge portions 208A. The leftmost capacitance sensor 212 is housed in the inner part of the other of the pair of ridge portions 208A.

[0160] Figure 15 shows the main part of the inner portion of the ridge 208A. The pad 214 forms the main part of the ridge 208A of the seat back 208. The air cell 216 is provided on the surface of the pad 214. The air cell 216 contains air. The capacitance sensor 212 is attached to the surface of the air cell 216.

[0161] The air cell 216 expands and contracts due to the inflow and outflow of air. As a result, the inner part of the levee 208B moves in the width direction of the sheet 202. At this time, the capacitance sensor 212 moves in the width direction of the sheet 202 in accordance with the expansion and contraction of the air cell 216.

[0162] According to the eighth embodiment described above, at least one of the multiple capacitance sensors 212 is provided on the bank portion 208A of the seat back 208. This allows the capacitance sensor 212 to make more reliable contact with the occupant.

[0163] Furthermore, the inner portion of the embankment 208A is provided to be movable in the width direction of the seat 202. This allows the capacitive sensor 212 to contact the occupant more reliably and with more appropriate pressure.

[0164] Specifically, the embankment portion 208A moves in the width direction of the seat 202 by the air cell 216. This allows the capacitive sensor 212 to contact the occupant more reliably and with more appropriate pressure using a simple configuration.

[0165] In addition, in the sixth to eighth embodiments, water may be sprayed or the occupants may be made to sweat in order to remove static electricity.

[0166] Furthermore, in the sixth to eighth embodiments, ambient conditions such as humidity, vibration, and body movement may be detected by a thermometer, camera, radio wave sensor, etc., and the reliability of the detection result of biological information by the capacitance sensor 212 may be determined based on the detection results. In this case, information indicating the reliability may be notified to the occupants. For example, if it is determined that the humidity is excessively low and biological information cannot be accurately detected, information indicating that the reliability of the detection result of biological information is low may be notified to the occupants. For example, if it is determined that the vibration of the vehicle is excessively large and biological information cannot be accurately detected, information indicating that the reliability of the detection result of biological information is low may be notified to the occupants. For example, if it is determined that the body movement of the occupants is excessively large and biological information cannot be accurately detected, information indicating that the reliability of the detection result of biological information is low may be notified to the occupants.

[0167] Furthermore, in the sixth to eighth embodiments, a plurality of capacitance sensors 212 may be provided on the seat cushion 207.

[0168] (Ninth Embodiment) Patent Document 3 (Japanese Patent Publication No. 2019-1280) discloses a vehicle seat having an anchor to which a child seat connector can be attached. A recess is formed in the seat cushion, and a bezel having an opening is arranged in the recess. The anchor is arranged inside the bezel. A lid is detachably attached to the opening of the bezel. The lid is attached to the bezel by a plurality of locking claws provided on the lid engaging with a plurality of locking holes provided on the bezel.

[0169] It is preferable that the lid be securely fixed to the bezel. On the other hand, it is preferable that the lid be easily removable from the bezel.

[0170] In view of the above background, the present invention aims to facilitate the removal of the lid in a vehicle seat.

[0171] To solve the above problems, the present invention provides a vehicle seat (301) comprising a seat cushion (303), a seat back (304) extending upward from the rear of the seat cushion, and a child seat mounting portion (310) for attaching a child seat, wherein the child seat mounting portion comprises a recess (313) formed in the seat cushion or the seat back, an anchor (314) disposed in the recess to connect with a connector (311) of the child seat, and a receiving recess (317) for receiving the connector, and a bezel inserted into the recess The device has a bezel (315) and a lid (318) that closes the receiving recess, the anchor passes through the bezel and protrudes into the receiving recess, the lid has a plate portion (331) that closes the open end of the receiving recess, a locking portion (332) provided on the back surface of the plate portion and that is detachably and rotatably hooked onto the anchor, and a contact portion (333) provided on the back surface of the plate portion, the bezel has a stopper (335) provided on the inside of the receiving recess, and the contact portion contacts the stopper when the lid is in a predetermined rotational position relative to the anchor.

[0172] According to this embodiment, the lid of a vehicle seat can be easily removed by utilizing the principle of leverage. When the lid is rotated, the contact point of the lid comes into contact with the stopper, acting as a fulcrum, and the locking part can be released from the anchor with a small operating force.

[0173] In the above embodiment, the lid may rotate between a first rotational position in which the edge of the plate portion is positioned along the opening end of the receiving recess and a second rotational position in which the contact portion contacts the stopper.

[0174] According to this embodiment, when the lid is in the first rotational position, the lid can properly close the open end of the bezel.

[0175] In the above embodiment, when the lid is in the second rotational position, a portion of the edge of the plate portion may protrude outward from the receiving recess.

[0176] In this embodiment, the user can hook their fingers onto the edge of the plate and pull the lid outwards from the bezel.

[0177] In the above embodiment, the contact portion may protrude inward from the back surface of the plate portion toward the receiving recess, and an operating portion (337) recessed toward the back surface may be formed on the surface of the plate portion corresponding to the contact portion.

[0178] In this embodiment, the user can rotate the lid by inserting their finger into the operating part and pushing it in. As a result, the contact portion of the plate comes into contact with the stopper, and a part of the plate protrudes outward from the receiving recess.

[0179] In the above embodiment, the contact portion and the operating portion may be provided on the edge of the plate portion in a direction perpendicular to the rotation axis centered on the anchor.

[0180] In this embodiment, the user can easily rotate the lid.

[0181] In the above embodiment, the operating section may have an inclined wall (338) that is inclined toward the rear side toward the locking section.

[0182] According to this embodiment, the user's finger can be guided in the direction of pressing the operating part.

[0183] In the above embodiment, the inner surface of the receiving recess may be provided with a projection (341) that abuts against the lid and holds the lid in the first rotational position. The projection may abut against the abutting portion.

[0184] According to this embodiment, the protrusion can hold the lid in the first position.

[0185] In the above embodiment, the bezel may have a box-shaped main body portion (321) that forms the receiving recess, and a flange portion (324) provided on the periphery of the main body portion and along the edge of the recess.

[0186] According to this embodiment, the gap between the bezel and the recess can be closed by the flange portion.

[0187] In the above embodiment, the main body may have an anchor receiving groove (323) for receiving the anchor.

[0188] According to this embodiment, attachment of the bezel to the recess and anchor becomes easier.

[0189] As shown in Figure 16, the seat 301 is provided on the floor 302 of the automobile and has a seat cushion 303 that supports the user's buttocks, and a seat back 304 that extends upward from the rear of the seat cushion 303 and supports the user's back. The seat 301 is for three people and consists of a left seat 301A, a center seat 301B, and a right seat 301C. As shown in Figure 17, the seat cushion 303 and the seat back 304 have a frame 306 that forms the skeleton, a pad 307 supported by the frame 306, and a surface material 308 that covers the pad 307. The frame 306 of the seat cushion 303 and the frame 306 of the seat back 304 are connected to each other. The frame 306 of the seat cushion 303 and the frame 306 of the seat back 304 may be connected to each other so as to be rotatable.

[0190] As shown in Figure 16, a raised portion 303A is provided at the rear of the upper surface of the seat cushion 303. The raised portion 303A extends to the left and right. The raised portion 303A is located below the lower end of the seat back 304.

[0191] The seat 301 has multiple child seat mounting sections 310 for attaching a child seat. A pair of left and right child seat mounting sections 310 are provided on the left seat 301A of the seat 301, and a pair of left and right child seat mounting sections 310 are provided on the right seat 301C of the seat 301.

[0192] As shown in Figure 17, the child seat has a pair of left and right connectors 311 that are detachably connected to the child seat mounting section 310. Each connector 311 extends rearward from the lower rear of the child seat. Each connector 311 has a receiving groove 311A ​​at its rear end and a latch 311B that protrudes into the receiving groove 311A. Each receiving groove 311A ​​is recessed toward the front and penetrates from left to right. The connectors 311 should preferably conform to the international standard ISO-FIX for child seat fastening methods.

[0193] As shown in Figures 17 and 18, each child seat mounting portion 310 has a recess 313 formed in the seat cushion 303 or seat back 304, an anchor 314 placed in the recess 313, a bezel 315 inserted into the recess 313, and a lid 318 that closes a receiving recess 317 formed in the bezel 315. The bezel 315 and the lid 318 may be made of resin.

[0194] In this embodiment, the recess 313 is provided in the raised portion 303A of the seat cushion 303. The recess 313 extends from the front to the rear of the raised portion 303A. The recess 313 may penetrate the pad 307 that constitutes the raised portion 303A from front to back. The cross-section of the recess 313 is formed in a substantially rectangular shape.

[0195] The anchor 314 is connected to the frame 306 of the seat cushion 303. The anchor 314 is formed by bending a metal rod with a circular cross-section. The anchor 314 has an anchor central portion 314A that extends left and right within the recess 313, and left and right anchor ends 314B that extend rearward from both ends of the anchor central portion 314A. The left and right anchor ends 314B are connected to the frame 306 of the seat cushion 303.

[0196] The bezel 315 has a box-shaped bezel body 321 that opens forward. The bezel 315 has a receiving recess 317 that opens forward on the inside of the bezel body 321. The bezel body 321 has left and right side wall portions 321A with surfaces facing left and right, an upper wall portion 321B with a surface facing up and down and connected to the upper edges of the left and right side wall portions 321A, a lower wall portion 321C with a surface facing up and down and connected to the lower edges of the left and right side wall portions 321A, and a rear wall portion 321D with a surface facing front and back and connected to the rear edges of the left and right side wall portions 321A, the upper wall portion 321B, and the rear wall portion 321C. The receiving recess 317 is formed by the left and right side wall portions 321A, the upper wall portion 321B, the rear wall portion 321D, and the rear wall portion 321D.

[0197] An anchor receiving groove 323 is formed at the rear of the bezel body portion 321. The anchor receiving groove 323 opens towards the rear and penetrates the bezel body portion 321 from left to right. Specifically, the anchor receiving groove 323 penetrates the rear wall portion 321D from front to back and extends to both left and right ends of the rear wall portion 321D, and extends forward from the rear ends of the left and right side wall portions 321A.

[0198] The bezel 315 is provided on the periphery of the bezel body 321 and has a flange portion 324 along the edge of the recess 313. The flange portion 324 has front and rear facing surfaces and extends outward from the front edge of the bezel body 321. The flange portion 324 is provided in an annular shape along the front edge of the bezel body 321.

[0199] The bezel body 321 is inserted into the recess 313 from the front, and the anchor center portion 314A protrudes into the anchor receiving groove 323. The bezel 315 is mounted in the recess 313 by the anchor receiving groove 323 engaging with the anchor center portion 314A. The anchor receiving groove 323 may be provided with a locking projection that engages with the anchor center portion 314A. When the bezel 315 is mounted in the recess 313, the flange portion 324 covers the front edge of the recess 313. The end of the surface material 308 may be positioned on the back side of the flange portion 324 or inside the recess 313. When the bezel 315 is mounted in the recess 313, the anchor 314 passes through the bezel 315 and protrudes into the receiving recess 317. Most of the anchor center portion 314A is positioned inside the receiving recess 317. The receiving recess 317 receives the connector 311 of the child seat, and the connector 311 connects to the central part 314A of the anchor within the receiving recess 317.

[0200] As shown in Figures 18 to 20, the lid 318 has a plate portion 331 that closes the open end of the receiving recess 317, a locking portion 332 provided on the back surface of the plate portion 331 that can be attached to and rotatably hooked onto the anchor 314, and a contact portion 333 provided on the back surface of the plate portion 331. The plate portion 331 is formed in a flat plate shape and is positioned so that its surface faces front to back on the open end of the receiving recess 317.

[0201] The locking portion 332 has an upper locking portion 332A and a lower locking portion 332B. Each of the upper locking portion 332A and the lower locking portion 332B protrudes rearward from the back surface, i.e., the rear surface, of the plate portion 331 and extends to the left and right. The upper locking portion 332A and the lower locking portion 332B are positioned apart from each other vertically. A locking groove 332C is formed between the upper locking portion 332A and the lower locking portion 332B, which rotatably receives the anchor central portion 314A. The locking groove 332C extends to the left and right. The locking groove 332C detachably receives the anchor central portion 314A. When a load exceeding a predetermined value is applied in the direction that pulls the anchor central portion 314A out of the locking groove 332C, the anchor central portion 314A can be pulled out of the locking groove 332C. The distance between the upper locking portion 332A and the lower locking portion 332B that form the open end of the locking groove 332C is set to be smaller than the diameter of the anchor center portion 314A. The rear ends of the upper locking portion 332A and the lower locking portion 332B may be provided with claws or protrusions for locking the anchor center portion 314A.

[0202] The lid 318 is positioned within the receiving recess 317 by the locking portion 332 engaging with the anchor central portion 314A. The lid 318 is supported by the anchor central portion 314A so as to be rotatable within a predetermined range of rotation about the anchor central portion 314A. With the lid 318 supported by the anchor central portion 314A, the plate portion 331 is positioned at the open end of the receiving recess 317. As a result, the open end of the receiving recess 317 is closed by the plate portion 331. When the lid 318 is in the first rotational position relative to the anchor 314, the plate portion 331 is positioned along the open end of the receiving recess 317.

[0203] The bezel 315 has a stopper 335 provided inside the receiving recess 317. The back surface of the plate portion 331 is provided with a contact portion 333 that can abut against the stopper 335. The contact portion 333 abuts against the stopper 335 when the lid 318 is in the second rotational position relative to the anchor 314. In this embodiment, the stopper 335 is provided on the upper wall portion 321B, and the contact portion 333 is provided at the upper end of the plate portion 331. In other embodiments, the stopper 335 may be provided on the lower wall portion 321C, and the contact portion 333 may be provided at the lower end of the plate portion 331. The stopper 335 protrudes downward from the lower surface of the upper wall portion 321B. The stopper 335 may also be coupled to the rear wall portion 321D.

[0204] The contact portion 333 protrudes inward from the back surface of the plate portion 331 toward the receiving recess 317. An operating portion 337 is formed on the surface of the plate portion 331 corresponding to the contact portion 333, recessed toward the back surface. The contact portion 333 and the operating portion 337 are provided on the edge of the plate portion 331 in a direction perpendicular to the rotation axis centered on the anchor central portion 314A. In this embodiment, the contact portion 333 and the operating portion 337 are provided on the upper edge of the plate portion 331.

[0205] The operating section 337 has an inclined wall 338 that slopes toward the rear side away from the locking section 332. When the lid 318 is in the first rotation position, the inclined wall 338 is inclined toward the rear and upward.

[0206] The inner surface of the receiving recess 317 is provided with a projection 341 that abuts against the lid 318 and holds the lid 318 in the first rotational position. The projection 341 may abut against the contact portion 333. The projection 341 may be a detent projecting downward from the lower surface of the upper wall portion 321B. The projection 341 is positioned on the opening end side, i.e., the front side, of the receiving recess 317 compared to the stopper 335. When the lid 318 is in the first rotational position, the projection 341 abuts against the upper edge of the contact portion 333 from the rear. As a result, the projection 341 prevents the contact portion 333 from moving backward. When the backward load applied to the contact portion 333 exceeds a predetermined value, the lid 318 flexes, and the contact portion 333 can move backward over the projection 341.

[0207] The operation of seat 301 will now be described. When the child seat is removed from seat 301, as shown in Figure 18, the lid 318 is attached to the anchor center portion 314A to close the receiving recess 317 of the bezel 315. At this time, the lid 318 is supported by the anchor center portion 314A at the locking portion 332 and is positioned in the first rotation position. The rotation of the lid 318 is restricted by the contact portion 333 when the convex portion 341 contacts the abutment portion 333, and the lid 318 is maintained in the first rotation position. By closing the receiving recess 317 of the bezel 315 with the lid 318, the anchor 314 and the receiving recess 317 can be hidden.

[0208] When attaching the child seat to the seat 301, the user needs to remove the lid 318 from the anchor center 314A in order to expose the anchor center 314A to the outside. The user first inserts their finger into the operating part 337 and pushes the operating part 337 backward. Because the operating part 337 is formed by a recessed area 313 that is recessed backward, the position of the finger is easily determined. Furthermore, because the operating part 337 has an inclined wall 338, the direction of finger insertion is even easier to determine.

[0209] When the user pushes their finger backward with a load exceeding a predetermined value, the lid 318 flexes, and the contact portion 333 moves backward over the protrusion 341. This causes the lid 318 to rotate around the anchor center portion 314A. As shown in Figure 21, the lid 318 rotates until the contact portion 333 contacts the stopper 335. When the contact portion 333 contacts the stopper 335, the lid 318 is in the second rotation position.

[0210] When the lid 318 is in the second rotation position, a portion of the edge of the plate portion 331 protrudes outward from the receiving recess 317. More specifically, the edge of the plate portion 331 on the side opposite to the contact portion 333 in a direction perpendicular to the rotation axis around the anchor 314 protrudes outward from the receiving recess 317. In this embodiment, the lower edge of the plate portion 331 protrudes forward from the receiving recess 317. This allows the user to hook their finger from behind onto the edge (lower edge) of the plate portion 331 that protrudes outward from the receiving recess 317 and pull it forward.

[0211] When the lid 318 is in the second rotation position, the user can detach the anchor center portion 314A from the locking portion 332 by pulling the lower edge of the plate portion 331 forward. At this time, based on the lever principle, the lower edge of the lid 318 is the point of force application, the contact point between the contact portion 333 and the stopper 335 is the fulcrum, and the locking portion 332 is the point of application. As a result, the locking portion 332 can be detached from the anchor center portion 314A with a relatively small force.

[0212] When the lid 318 is removed from the anchor center portion 314A, the receiving recess 317 opens, exposing the anchor center portion 314A to the outside. As a result, as shown in Figure 17, the child seat connector 311 can be inserted into the receiving recess 317 and connected to the anchor center portion 314A.

[0213] The seat 301 according to this embodiment can easily remove the lid 318 by utilizing the lever principle. When the lid 318 is rotated, the contact portion 333 of the lid 318 comes into contact with the stopper 335 and acts as a fulcrum, allowing the locking portion 332 to be released from the anchor 314 with a relatively small operating force.

[0214] When the lid 318 is in the first rotational position, the lid 318 can properly close the open end of the bezel 315. The protrusion 341 can hold the lid 318 in the first position.

[0215] Because the operating section 337 is recessed from the front to the back side of the plate section 331, the user can rotate the lid 318 by inserting their finger into the operating section 337 and pushing it in. As a result, the contact portion 333 of the plate comes into contact with the stopper 335, and a part of the plate protrudes outward from the receiving recess 317. In addition, the inclined wall 338 of the operating section 337 can guide the user's finger in the direction of pressing the operating section 337.

[0216] This concludes the description of specific embodiments, but the present invention is not limited to the above embodiments and can be broadly modified and implemented.

[0217] For example, the vibration transmission systems of the first to fifth embodiments may be applied to public vehicles such as bullet trains, electric trains, and buses. In this case, sleeping passengers may be woken by vibration. The timing of the vibration may be set by the passengers themselves using application software on a smartphone or the like.

[0218] For example, in the sixth to eighth embodiments, if it is determined that the capacitance sensor 212 is not in proper contact with the occupant, the occupant may be notified of this fact by sound, light, vibration, etc.

[0219] For example, in the ninth embodiment, the shapes of the bezel 315 and the lid 318 may be inverted vertically. Also, the child seat mounting portion 310 may be provided at the lower end of the seat back 304. Furthermore, the child seat mounting portion 310 may be provided on the front seat (passenger seat). [Explanation of symbols]

[0220] 102: Sheet 112: Vibration transmission device 113: Vibration sound suppression device 117: Frame 120A: First vibration transmission device 120B: Second vibration transmission device 202: Sheet 207: Seat cushion 208: Seatback 208A: Embankment 212: Capacitive Sensor 213: Epidermis 214: Pad 214A: Slit 214B: Recess 215: Lid 216: Air Cell 303: Seat cushion 304: Seat back 310: Child seat mounting section 311: Connector 313: Recess 314: Anchor 314A: Center of the anchor 315: Bezel 317: Receptive recess 318: Lid 321: Bezel body 323: Anchor receiving groove 324: Flange section 331: Plate section 332: Locking part 333: Contact part 335: Stopper 337:Operation unit 338: Inclined wall 341: Convex part

Claims

1. A vibration transmission system for vehicles, A vibration transmission device embedded in the seat cushion of a vehicle seat, which generates vibrations of a preset waveform and transmits the vibrations to the occupant, A vibration noise suppression device embedded in the seat surface of the seat cushion to suppress the vibration noise caused by the vibration transmission device, Equipped with, The vibration noise suppression device is a vehicle vibration transmission system that generates vibrations with a waveform preset to be in opposite phase to the waveform of the vibration generated by the vibration transmission device.

2. The vibration transmission device transmits the vibration to a part of the occupant's body. The vibration transmission system for a vehicle according to claim 1, wherein the vibration noise suppression device transmits the vibration to another part of the occupant's body.

3. The vibration noise suppression device is attached to the frame of the seat, and is part of the vehicle vibration transmission system according to claim 1 or claim 2.

4. The vibration transmission device and the vibration noise suppression device are inoperable when a seat belt is not fastened to the seat. A vehicle vibration transmission system according to any one of claims 1 to 3.

5. The vibration transmission device and the vibration noise suppression device are inoperable when a child seat is installed on the seat. A vehicle vibration transmission system according to any one of claims 1 to 3.

6. The vibration transmission device and the vibration noise suppression device are configured to operate according to any one of claims 1 to 3, wherein the operation of the vibration transmission device and the vibration noise suppression device is controlled based on the state of the occupant when the state of the occupant is detected by a biosensor.

7. A vibration transmission system for vehicles, Multiple vibration transmission devices embedded in the seat cushion surface of a vehicle seat, which generate vibrations of a preset waveform and transmit the vibrations to the occupant, A vibration noise suppression device embedded in the seat surface of the seat cushion to suppress the vibration noise caused by the vibration transmission device, Equipped with, The vibration noise suppression device is a vehicle vibration transmission system that generates vibrations with a waveform preset to be in opposite phase to the waveform of the vibration generated by the vibration transmission device.

8. The vehicle vibration transmission system according to claim 7, wherein at least one of the plurality of vibration transmission devices changes the frequency of the vibration.

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