JP7377749B2 - sheet - Google Patents

Description

TECHNICAL FIELD The present invention relates to a seat provided with a vibrating device within the seat back.

The stimulation device described in Patent Document 1 below includes a main body that can be detachably attached to a vehicle seat and is configured to cover the side of the body such as the flanks, hips, and thighs of a seated person, and a main body that is provided on the main body. and includes a first vibration device and a second vibration device that issue a vibrating warning to the seated person. The first vibration device and the second vibration device are arranged so as to apply vibration to the latissimus dorsi tendon region and the gluteus medius tendon region, which are regions where stimulation has a high arousal effect.

The seat device described in Patent Document 2 below includes a seat used as a driver's seat of a vehicle, and a pair of left and right vibration units built into the seat back of the seat. The pair of vibration units vibrates to alert the occupants when the vehicle deviates from its driving lane.

Japanese Patent Application Publication No. 2016-153969 Japanese Patent Application Publication No. 2017-214006

In the prior art described in Patent Document 1, a first vibration device and a second vibration device are arranged on the sides of the seated person's torso in order to apply vibration to the body side of the seated person. For this reason, the way vibrations are transmitted to the body side varies depending on the body shape (width of the torso) of the seated person. Additionally, since the main body on which the first vibration device and the second vibration device are installed has a structure that protrudes significantly from the backrest of the vehicle seat to the front of the seat, there are problems such as an increase in the size of the vehicle seat and deterioration of ease of getting in and out of the vehicle seat. occurs.

In the prior art described in Patent Document 2, the arrangement of the pair of vibration units within the backrest part is not specified in detail, but depending on the arrangement, not only will a sufficient awakening effect not be obtained, but also This may cause problems such as making people feel uncomfortable or uncomfortable.

The present invention has been made in consideration of the above-mentioned facts, and an object of the present invention is to provide a seat that is less likely to cause a feeling of discomfort or discomfort to a seated person, and which has a high arousal effect on the seated person due to vibration.

The seat of the first aspect includes a seat back that supports the back of a seated person, and a vibration device that is provided in the seat back and vibrates when activated, and includes a back pad that is a padding material of the seat back. A recess is formed in which the rear side of the seat is open and the front side of the seat is closed, and the vibrating device is fitted into the recess from the rear side of the seat, and the position of the vibrating device in the seat vertical direction is as follows: The distance is set within a range of 200 mm to 400 mm from the hip point of the seated person to the upper side of the seat along the torso line of the seated person.

In the seat of the first aspect , a vibration device that vibrates when activated is provided in a seat back that supports the back of a seated person. This vibrating device is fitted into a recess formed in a back pad that is a pad material for the seat back. This recess is open on the rear side of the seat and closed on the front side of the seat. Thereby, the seated person whose back portion is in contact with the backrest surface of the seat back can be prevented from feeling the presence of the vibrating device or the recessed portion. Furthermore, the position of the vibrating device in the seat vertical direction is set within a range of 200 mm to 400 mm from the hip point of the seated person to the upper side of the seat along the seated person's torso line. This makes it possible to apply vibrational stimulation to the circulatory system of the seated person regardless of the physique of the seated person, thereby activating the nervous system of the circulatory system. From the above, according to the present seat, it is difficult to give a feeling of discomfort or discomfort to the seated person, and the effect of vibration on the seated person to awaken the seated person is enhanced.

In the seat of the second aspect , in the seat of the first aspect , the vibrating device is held by the back pad by being fitted into the recess.

In the seat of the second aspect , the vibration device is held by the back pad by being fitted into a recess formed in the back pad. This eliminates the need for a special member for holding the vibration device on the back pad.

In the seat of the third aspect , in the seat of the first aspect or the second aspect , the wiring routed inside the seat back on the seat rear side of the back pad is arranged from an opening of the recess into the recess. and connected to the vibration device.

In the seat of the third aspect , the wiring routed in the seat back on the back side of the seat of the back pad is inserted into the recess from the opening of the recess with the rear side of the seat open, and is connected to the vibration device. There is. This eliminates the need for the wiring to pass through to the front side of the back pad, making it easier to route the wiring.

As described above, the seat according to the present invention hardly gives a feeling of discomfort or discomfort to the seated person, and has a high effect of arousing the seated person due to vibration.

FIG. 2 is a perspective view of the vehicle seat according to the embodiment viewed from the front side of the seat, and is a diagram showing a state in which the skin material and the pad material are seen through. FIG. 2 is a perspective view of the vehicle seat according to the embodiment viewed from the rear side of the seat, showing a state in which the skin material of the seat back has been peeled off. FIG. 2 is a perspective view showing a state before a vibration device is attached to a back pad that is a pad material of a seat back. FIG. 2 is a side view showing a state in which a person is seated on the vehicle seat according to the embodiment, and is a diagram for explaining the position of the vibration device in the seat vertical direction. FIG. 2 is a block diagram showing the configuration of a control device that controls the operation of the vibration device. FIG. 2 is a perspective view corresponding to FIG. 1 for explaining an example of a sensor included in the control device. It is a graph which shows the result of the sensory evaluation regarding the arrangement height of the vibration device based on embodiment. It is a graph which shows the result of the sensory evaluation regarding the arrangement height of the vibration device based on a comparative example. 2 is a graph showing the results of a sensory evaluation regarding comfort and discomfort during vibration of the vibration device according to the embodiment. 3 is a graph showing the results of a sensory evaluation regarding comfort and discomfort during vibration of a vibration device according to a comparative example.

Hereinafter, a vehicle seat 10 as a seat according to an embodiment of the present invention will be described with reference to FIGS. 1 to 8B. Note that in each figure, some symbols may be omitted to make the drawings easier to read. Further, arrows FR, LH, and UP shown as appropriate in each figure indicate the front, left, and upper sides of the vehicle seat 10, respectively. Hereinafter, when the directions are simply referred to as front, rear, left, right, up and down, the directions with respect to the vehicle seat 10 are indicated unless otherwise specified.

(composition)
As shown in FIGS. 1 to 4, the vehicle seat 10 according to the present embodiment is a seat that supports the buttocks D and thighs F of a seated person P (see FIG. 4) seated on the vehicle seat 10. It includes a cushion 12, a seat back 34 that supports the back B of the seated person P, and a headrest 54 (not shown in FIG. 4) that supports the head H of the seated person P. Further, the vehicle seat 10 includes a pair of vibration devices 74L and 74R that are disposed within the seat back 34 and vibrate when activated.

As an example, the seated person P shown in FIG. 4 is a dummy doll of AM50 (50th percentile of American adult males) of Hybrid-3, and is seated on the vehicle seat 10 in a normal sitting posture. . In addition, P1 indicated by a broken line in FIG. 4 indicates, as an example, the torso of AM95 (95th percentile for American adult males) of Hybrid-3, and P2 indicated by a chain double-dashed line in FIG. 4 indicates, as an example. , shows the torso of Hybrid-3 AF05 (5th percentile of American adult women). Further, in this embodiment, the front, rear, left, right, top, and bottom directions of the vehicle seat 10 match the front, rear, left, right, top, and bottom directions of the vehicle in which the vehicle seat 10 is mounted. Hereinafter, first, an outline of the overall configuration of the seat cushion 12 and the seat back 34 will be explained, and then main parts of the present embodiment will be explained.

(Overall composition of seat cushion)
As shown in FIGS. 1 and 2, the seat cushion 12 includes a cushion frame 14 that is a frame (skeleton), a cushion pad (not shown) that is a pad material supported by the cushion frame 14, and an outer skin that covers the cushion pad. It has a cushion skin 32 which is a material, and a pair of left and right side finishers 33. The cushion frame 14 includes a pair of left and right side frames 16 that extend in the front-rear direction on the left and right sides of the seat cushion 12, and a front frame 18 that spans between the upper end portions of the front portions of the left and right side frames 16. It includes a rear frame 20 spanning between the rear end portions of the left and right side frames 16.

The left and right side frames 16 are formed into elongated shapes, for example, from sheet metal, and are arranged with their longitudinal direction along the front-rear direction and their thickness direction along the left-right direction. These side frames 16 are connected to the floor of the vehicle body via a lifter mechanism 22 and a slide mechanism 24. The slide mechanism 24 is for adjusting the position of the vehicle seat 10 in the longitudinal direction with respect to the floor of the vehicle (not shown), and includes left and right slide rails 26 . The lifter mechanism 22 is for adjusting the vertical position of the seat cushion 12 with respect to the floor of the vehicle.

The front frame 18 is formed, for example, into a substantially rectangular shape by sheet metal, and is arranged with the thickness direction along the vertical direction, and both ends in the left and right direction are attached to the front parts of the left and right side frames 16 by means such as welding. Fixed. The rear frame 20 is formed of a metal pipe, is arranged with its axial direction along the left-right direction, and both ends of the rear frame 20 in the left-right direction are rotatably connected to the rear ends of the left and right side frames 16. . This rear frame 20 constitutes a part of the lifter mechanism 22, and is configured to rotate around an axis when the lifter mechanism 22 is operated.

A plurality of (here, four) cushion springs 28 are bridged between the rear frame 20 and the front frame 18. These cushion springs 28 are so-called S springs, and are arranged side by side in the left-right direction. These cushion springs 28 have respective front end portions (not shown) locked to the front frame 18, and respective rear end portions 28R locked to the rear frame 20. Further, the rear end portion 28R of each cushion spring 28 is connected in the left-right direction by a connecting member 30. The connecting member 30 is made of, for example, a resin material and is formed into a long plate shape, and is fixed to each cushion spring 28 by means of claw fitting, screwing, or the like. This connecting member 30 has a function of distributing the load from the seated person P to the plurality of cushion springs 28.

The cushion pad is made of a foam such as urethane foam, and is attached to the cushion frame 14 from above. This cushion pad is supported from below by the cushion frame 14 and a plurality of cushion springs 28, and its rear end is also supported from below by the above-mentioned connecting member 28. The cushion skin 32 covering the cushion pad is formed into a bag shape by sewing a plurality of cloth pieces made of, for example, cloth, leather, synthetic leather, PVC, or the like. Further, the left and right side finishers 33 provided on the left and right sides of the seat cushion 12 are made of, for example, a resin material, and are fixed to the cushion frame 14 by means of claw fitting, screwing, etc.

(Overall configuration of seat back)
As shown in FIGS. 1 to 3, the seat back 34 includes a back frame 36 that is a frame (skeleton), and a back pad 68 (see FIGS. 2 and 3) that is a pad material supported by the back frame. It is configured to include a back skin 66 which is a skin material covering a back pad 68. The back frame 36 spans between a pair of left and right side frames 38 extending in the vertical direction (in the height direction of the seat back 34) on the left and right sides of the seat back 34, and the upper ends of the left and right side frames 38. the upper frame 40 (not shown), an upper back panel 42 fixed to the back side of the upper frame 40, and a lower back panel 44 fixed to the back sides of the lower ends of the left and right side frames 38. .

The left and right side frames 38 are formed into elongated shapes, for example, from sheet metal, and are arranged with their longitudinal direction along the up-down direction and their thickness direction along the left-right direction. The lower ends of the left and right side frames 16 are connected to the rear ends of the left and right side frames 16 of the cushion frame 14 via a reclining mechanism 46. The reclining mechanism 46 is for adjusting the reclining angle of the seat back 34 with respect to the seat cushion 12. The reclining mechanism 46 includes a reclining rod 48 extending in the left-right direction at the lower end of the seat back 34. The reclining rod 48 has a cylindrical shape with its axis extending in the left-right direction, and is spanned between the lower ends of the left and right side frames 38 .

The upper frame 40 is formed, for example, by bending a metal pipe into a substantially inverted U-shape, and includes a horizontally extending portion 40A extending in the left-right direction, and a horizontally extending portion 40A extending from both left-right ends of the horizontally extending portion 40A. It has a pair of left and right legs 40B extending downward. The left and right leg portions 40B are fixed to the upper end portions of the left and right side frames 38 by means such as welding, and a pair of left and right headrest support brackets 50 are fixed to the middle portion of the horizontally extending portion 40A in the left and right direction. . A headrest frame 56 that constitutes the frame of the headrest 54 is attached to these headrest support brackets 50 via a headrest support 52.

The upper back panel 42 is formed into a long shape by, for example, a sheet metal, and is arranged with the longitudinal direction along the left-right direction and the thickness direction along the front-back direction, and both longitudinal ends are welded to the left and right sides. is fixed to the back side of the leg portion 40B. The lower back panel 44 is formed in an elongated shape by, for example, a sheet metal, and is arranged with its longitudinal direction along the left-right direction and its thickness direction along the front-rear direction, and both longitudinal ends are welded to the left and right sides. is fixed to the rear side of the lower end of the side frame 16.

A lumbar support plate 58, which is part of the lumbar support 57, is arranged diagonally above the front of the seat with respect to the lower back panel 44. The lumbar support plate 58 is formed of, for example, a sheet metal into an elongated rectangular shape, and is disposed such that its longitudinal direction runs along the left-right direction and its thickness direction runs along the front-back direction. The lumbar support plate 58 is supported by the left and right side frames 38 via, for example, torsion bars (not shown), and is displaced in the front-rear direction by rotating the torsion bars manually or electrically. The lumbar support plate 58 is configured to support the lumbar region W of the seated person P from the rear side of the seat via the back pad 68 and the back skin 66. The above-described reclining rod 48 is arranged below the lumbar support plate 58 and in front of the lower end of the lower back panel 44 .

Further, a spring mat 60 is spanned between the lumbar support plate 58 and the upper back panel 42. This spring mat 60 corresponds to a "spring" in the present invention. This spring mat 60 is also called a flat mat, and is arranged between the left and right side frames 38. The spring mat 60 includes a pair of left and right side wires 62 that span between the upper back panel 42 and the lumbar support plate 58, and a plurality of main wires 64 that span between the left and right side wires 62. are doing. Note that the "spring" in the present invention may be a so-called S spring.

The back pad 68 is made of a foam such as urethane foam, and is attached to the back frame 36 from above. This back pad 68 is supported from the rear by the back frame 36, lumbar support plate 58, and spring mat 60. The back pad 68 has a substantially bag-like shape with the lower and rear sides open, and has an opening 70 (see FIG. 2) that exposes the lumbar support plate 58 and the spring mat 60 to the rear side. The back skin 66 (not shown in FIG. 2) that covers the back pad 68 is formed into a bag shape by sewing a plurality of cloth pieces made of, for example, cloth, leather, synthetic leather, PVC, or the like. This back skin 66 covers the entire back pad 68 including the opening 70 described above.

(Main part of this embodiment)
In this embodiment, a pair of recesses 72L and 72R, which are open on the rear side and closed on the front side, are formed side by side in the left-right direction of the seat in the vertical middle part of the back surface (the surface facing the rear side) of the back pad 68. has been done. The back pad 68 is similar to the existing one except that a pair of recesses 72L and 72R are formed. These pair of recesses 72L and 72R are arranged symmetrically with respect to the center of the seat back 34 in the left-right direction. These pair of recesses 72L and 72R have, for example, a circular shape when viewed in the front and back direction of the seat. These pair of recesses 72L, 72R correspond to the pair of vibration devices 74L, 74R.

The pair of vibrating devices 74L and 74R are, for example, voice coil motors, eccentric motors, etc., and are configured to vibrate when activated by electricity. The pair of vibrating devices 74L and 74R are, for example, formed in a cylindrical shape with a short dimension in the axial direction, and are fitted into the pair of recesses 72L and 72R from the rear side. The pair of vibration devices 74L and 74R are arranged in such a manner that the direction of vibration is along the front-rear direction of the seat.

The pair of vibration devices 74L and 74R are held by the back pad 68 by being fitted into the pair of recesses 72L and 72R. Specifically, for example, the openings of the pair of recesses 72L and 72R are formed with stepped portions (not shown) that are made by reducing the inner diameters of the pair of recessed portions 72L and 72R, and these stepped portions are formed in the openings of the pair of recessed portions 72L and 72R. The vibrating devices 74L and 74R are prevented from falling out of the pair of recesses 72L and 72R by being caught from the rear side with respect to the outer peripheral portion of the vibrating devices 74L and 74R. In other examples, the vibrating device is held in the recess by bonding a nonwoven fabric like a lid to the opening of the recess into which the vibrating device is fitted.

Further, as shown in FIG. 2, a part of the spring mat 60 (a certain part of the whole) is arranged so as to overlap the pair of recesses 72L and 72R in the front-rear direction of the seat. The vibration devices 74L and 74R are arranged opposite to each other from the rear side of the seat. Thereby, the spring mat 60 is configured to prevent the vibration devices 74L, 74R from falling out of the pair of recesses 72L, 72R.

As shown in FIGS. 2 and 3, wirings 76L and 76R are connected to the pair of vibration devices 74L and 74R, respectively. These pair of wirings 76L, 76R are routed inside the seat back 34 on the seat rear side of the back pad 68, and are inserted into each of the recesses 72L, 72R from the openings of the pair of recesses 72L, 72R. They are connected to devices 74L and 74R, respectively.

The positions of the pair of vibration devices 74L and 74R in the seat vertical direction (hereinafter sometimes referred to as "arrangement height") are set within the range indicated by the symbol R1 in FIG. 4. In this FIG. 4, the range marked with the symbol R2 is the range from the hip point HP of the seated person P to 200 mm upward of the seat along the torso line TL of the seated person P, and the range marked with the symbol R1. is in a range of 200 mm to 400 mm from the hip point HP to the upper side of the seat along the torso line TL.

That is, the arrangement height of the pair of vibrating devices 74L and 74R is set within a range of 200 mm to 400 mm from the hip point HP to the upper side of the seat along the torso line TL. This arrangement height is equivalent to the height at which each circulatory system (thoracic vertebrae) of AF05, AM50, and AM95 shown in FIG. 4 is located. Further, this arrangement height is such that the backs of AF05, AM50, and AM95 are always in contact with each other with a sufficient area. Therefore, the pair of vibrating devices 74L and 74R are arranged so that vibration stimulation can be applied to the nervous system of the circulatory system regardless of the physical differences of the seated person P, and so that internal circulation can be promoted.

Further, the positions of the pair of vibrating devices 74L and 74R in the seat longitudinal direction are set within a range of 10 mm to 40 mm from the backrest surface (front surface) of the seat back 34. Further, the vibration frequency of the pair of vibration devices 74L and 74R is set, for example, within the range of 30Hz to 300Hz.

The pair of vibration devices 74L and 74R are electrically connected to a control device 78 shown in FIG. 5 via wiring 76L and 76R. The control device 78 includes a CPU (Central Processing Unit) 78A, a ROM (Read Only Memory) 78B, a RAM (Random Access Memory) 78C, a storage 78D, and an input/output I/F (Inter Face) 78E. configured . The CPU 78A, ROM 78B, RAM 78C, storage 78D, and input/output I/F 78E are communicably connected to each other via a bus 78F.

The CPU 78A is a central processing unit that executes various programs and controls various parts. That is, the CPU 78A reads the program from the ROM 78B and executes the program using the RAM 78C as a work area. In this embodiment, various programs and various data are stored in the ROM 78B. The storage 78D is configured with an HDD (Hard Disk Drive) or an SSD (Solid State Drive), and stores various programs including an operating system and various data.

In addition to the vibration devices 74L and 74R, a sensor 80 is electrically connected to the input/output I/F 78E. This sensor 80 is, for example, a vehicle exterior camera that detects whether the vehicle has deviated from its lane or surrounding vehicles, a seated person sensor that detects the state (for example, alertness level) of the seated person P, etc., and the detection results of this sensor 80 are Based on this, the control device 78 is configured to control the operation of the pair of vibration devices 74L and 74R. The seated person sensor described above is, for example, an in-vehicle camera that images the seated person P, a biological information sensor that detects biological information (for example, heart rate) of the seated person P, or the like. As an example, FIG. 6 shows a configuration in which radio heart rate sensors 80A and 80B, which are biological information sensors, are disposed at the lower end of the seat back 34 and the rear end of the seat cushion 12. These radio wave type heart rate sensors 80A and 80B are non-contact type heart rate sensors that detect the body surface displacement associated with the pulsation and breathing of the seated person P from the reflected waves of radio waves emitted toward the waist W and buttocks D of the seated person P. It is considered a vital sensor. Note that a configuration may be adopted in which one of these sensors 80A and 80B is omitted.

(action and effect)
Next, the functions and effects of this embodiment will be explained.

In the vehicle seat 10 having the above configuration, a pair of vibration devices 74L and 74R that vibrate when activated are provided in the seat back 34 that supports the back B of the seated person P. These pair of vibration devices 74L, 74R are fitted into a pair of recesses 72L, 72R formed in a back pad 68, which is a pad material of the seat back 34. These pair of recesses 72L and 72R are formed side by side in the left-right direction of the seat, and are open on the rear side of the seat and closed on the front side of the seat. Thereby, the seated person P whose back portion B is in contact with the backrest surface of the seat back 34 can be prevented from feeling the presence of the vibrating devices 74L, 74R and the recesses 72L, 72R.

Furthermore, the positions of the pair of vibration devices 74L and 74R in the seat vertical direction are set within a range of 200 mm to 400 mm upward from the hip point HP of the seated person P along the torso line TL of the seated person P. Thereby, vibration stimulation can be applied to the circulatory system of the seated person P regardless of the physique of the seated person P, so that the nervous system of the circulatory system can be activated. From the above, according to the present vehicle seat 10, the seated person P is less likely to feel uncomfortable or uncomfortable, and the effect of vibration on the seated person P to wake up is enhanced.

Further, in this vehicle seat 10, the pair of vibration devices 74L, 74R are fitted into the pair of recesses 72L, 72R formed in the existing back pad 68, so the pair of vibration devices 74L, 74R are inserted into the seat back 34. There is no need to secure an installation site, and no need to change the shape of the seat back 34. As a result, it is possible to ensure the same ease of getting on and off as existing vehicle seats. Furthermore, when attaching the pair of vibrating devices 74L and 74R to the back frame 36 or the like directly or via a bracket, there is a concern that resonance or abnormal noise may occur, but such concerns do not arise in this embodiment. Further, by fitting the pair of vibrating devices 74L, 74R into the pair of recesses 72L, 72R, the pair of vibrating devices 74L, 74R are held on the back pad 68. No special member is required for holding the 68.

Further, in this vehicle seat 10, the back pad 68 is elastically supported from the rear side of the seat by a spring mat 60 included in the seat back 34, and a part of the spring mat 60 is connected to the pair of vibration devices 74L. , 74R from the rear side of the seat. Thereby, it is possible to prevent the pair of vibration devices 74L, 74R from accidentally falling off from the pair of recesses 72L, 72R without providing any special member.

Further, in this vehicle seat 10, a pair of wiring lines 76L and 76R are routed inside the seat back 34 on the rear side of the seat of the back pad 68. The pair of wirings 76L, 76R are inserted into the respective recesses 72L, 72R from the openings of the pair of recesses 72L, 72R, which are open on the rear side of the seat, and are connected to the pair of vibration devices 74L, 74R, respectively. This eliminates the need for the pair of wires 76L, 76R to penetrate through the back pad 68, making it easier to route the wires 76L, 76R.

(About sensory evaluation)
Next, the sensory evaluation conducted by the inventor of the present application will be explained. In this sensory evaluation, the arrangement height of the pair of vibration devices 74L and 74R was set within the range of this embodiment (this embodiment) and when it was set outside the range (comparative example). The suitability of vibration was evaluated, and the level of comfort and discomfort during vibration was evaluated.

When set within the scope of the present invention, the pair of vibrating devices 74L and 74R are arranged such that the center portions of the pair of vibrating devices 74L and 74R are located at a height of 340 mm upward from the hip point HP along the torso line TL. , 74R was placed. In addition, if the settings are outside the scope of the present invention, the pair of vibration devices 74L and 74R may be set so that their center portions are located at a height of 430 mm upward from the hip point HP along the torso line TL. Devices 74L and 74R were arranged.

In addition, in this sensory evaluation, two types of vibration patterns were evaluated, taking into account the possibility that differences may appear due to vibration frequency, ringing interval, etc. Specifically, the vibration frequency was set to 50Hz to 100Hz and the ringing interval was set to 0.5 seconds in vibration pattern 1, and the vibration frequency was set to 100Hz to 200Hz and the ringing interval was set to 1 second. Evaluation was performed using vibration pattern 2.

7A and 7B, the evaluation results of the appropriateness of the arrangement height are shown in graphs. As shown in FIGS. 7A and 7B, when the arrangement height is within the range of this embodiment, many answers were "3: Appropriate"; however, when the arrangement height is outside the range of this embodiment, In some cases, there were many responses ranging from "4: Somewhat high" to "5: High."

8A and 8B show graphs of the evaluation results of comfort and discomfort during vibration. As shown in FIGS. 8A and 8B, when the placement height is within the range of this embodiment, there are fewer answers such as "1: Uncomfortable" and "2: Slightly uncomfortable," and "3: Not sure." There were many responses of "4: Somewhat comfortable," but if the placement height is outside the range of this embodiment, "1: Uncomfortable," "2: Somewhat uncomfortable," and "3: Neither." There were many responses.

According to the above sensory evaluation, when the arrangement height of the pair of vibrating devices 74L and 74R is set within the range of this embodiment, the seated person P feels a sense of discomfort and discomfort compared to when the height is set outside the range. It was confirmed that it is difficult to give pleasure.

In the above embodiment, a pair (two) of vibrating devices 74L and 74R are provided in the seat back 34, but one or more vibrating devices may be provided in the seat back. It's okay.

Further, in the above embodiment, a case has been described in which the present invention is applied to the vehicle seat 10, but the present invention is not limited to this. The present invention is also applicable to, for example, seats for vehicles other than vehicles, seats provided in remote control devices for remotely controlling vehicles such as vehicles, and the like.

In addition, the present invention can be implemented with various modifications without departing from the gist thereof. Moreover, it goes without saying that the scope of the rights of the present invention is not limited to the above embodiments.

10 Vehicle seat 34 Seat back 60 Spring mat (spring)
68 Back pad 72L, 72R Recess 74L, 74R Vibration device 76L, 76R Wiring P Passenger HP Hip point TL Torso line

Claims (2)

a seat back that supports the back of a seated person;
a vibration device that is provided in the seat back and vibrates when activated;
Equipped with
The back pad, which is the pad material of the seat back, is formed with a recess that is open on the rear side of the seat and closed on the front side of the seat,
The vibration device is held by the back pad by being fitted into the recess from the rear side of the seat,
The position of the vibration device in the seat vertical direction is set within a range of 200 mm to 400 mm from the hip point of the seated person to the upper side of the seat along the torso line of the seated person,
A seat in which a part of a spring mat provided on the rear side of the seat of the back pad is arranged so as to overlap the recess in the seat front-rear direction, and the spring mat prevents the vibration device from falling out of the recess. . 2. The seat according to claim 1, wherein a wiring routed inside the seat back on the rear side of the seat of the back pad is inserted into the recess through an opening of the recess and connected to the vibration device.