Seat device

Abstract

To stabilize the posture support of a seated person.SOLUTION: A seat device includes a film-shaped support member (60) that supports a seated person, a pair of rotation shafts (52,53) around which the support member (60) is wound, and a stimulation device (20) that stimulates the seated person, and the stimulation device (20) is movable between the pair of rotation shafts (52,53) together with the support member (60).SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to a seating apparatus. [Background technology]

[0002] For example, Patent Document 1 describes a chair-type massage machine equipped with a treatment element that presses against the back of a seated person. The treatment element is housed in the backrest of the massage machine. The treatment element is movable up and down within an opening formed in the backrest. A sheet material is placed on the massage machine so as to cover the opening. When no massage is being performed, the tension of the sheet material is set to a high level, so that the back of the seated person is supported by the sheet material. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-233063 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the massage machine of Patent Document 1, the opening formed in the backrest of the massage machine must be sized to correspond to the range of movement of the treatment head. Because the opening area of ​​the opening formed in the backrest is large, the back of the seated person sinks into the opening of the backrest. As a result, the posture of the seated person sitting on the massage machine becomes unstable.

[0005] One aspect of the present disclosure aims to stabilize the posture support of a seated occupant. [Means for solving the problem]

[0006] In order to solve the above problems, the seat device of the present disclosure comprises a membrane-shaped support member that supports an occupant, a pair of rotating shafts around which the support member is wrapped, and a stimulation device that provides stimulation to the occupant, and the stimulation device is movable between the pair of rotating shafts together with the support member. [Effects of the Invention]

[0007] According to one aspect of the present disclosure, the posture of a seated occupant can be stably supported. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic diagram illustrating an example of a seat device according to a first embodiment of the present disclosure. [Figure 2] FIG. 2 is a front view showing the internal configuration of the seat back. [Figure 3] FIG. 2 is a perspective view showing the internal configuration of the seat back. [Figure 4] FIG. 2 is a perspective view showing a movement device provided in the seat back. [Figure 5] FIG. 2 is a schematic side view of the configuration of the moving device. [Figure 6] 3 is a top view of a first frame, a second frame, and an auxiliary member provided in the moving device, seen from above. FIG. [Figure 7] 10A and 10B are diagrams illustrating a modified example of a first moving mechanism included in the moving device. [Figure 8] 3A and 3B are diagrams illustrating the configuration of a support member and a slide member. [Figure 9] 10A and 10B are diagrams illustrating a modified example of a first moving mechanism included in the moving device. [Figure 10] 10A and 10B are diagrams illustrating a modified example of a second moving mechanism included in the moving device. [Figure 11] FIG. 10 is a schematic diagram illustrating an example of a moving device according to a second embodiment of the present disclosure. [Figure 12] FIG. 10 is a schematic diagram illustrating an example of a moving device according to a second embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0009] [Embodiment 1] The seat device 1 according to the first embodiment of the present disclosure will be described in detail below. In the following description, the up-down direction, the front-rear direction, and the left-right direction are defined as shown by arrows in FIG. 1 and other figures. The front-rear direction and the left-right direction are defined based on the position of an occupant seated in the seat device 1. The up-down direction is the height direction of the seat device 1, and the left-right direction is the width direction of the seat device 1.

[0010] <Seat device> 1 is a schematic diagram showing an example of a seat device 1 according to a first embodiment. The seat device 1 is installed in a vehicle such as an automobile. However, the seat device 1 is not limited to being installed in a vehicle. The seat device 1 may be installed in, for example, an ordinary home, an airplane, a hospital, an osteopathic clinic, a massage parlor, or the like.

[0011] 1, the seat apparatus 1 includes a seat cushion 2 and a seat back 3. The seat apparatus 1 may include a headrest 4 attached to an upper portion of the seat back 3.

[0012] The seat cushion 2 supports the buttocks and lower legs of the seated occupant. The seat back 3 is attached to the seat cushion 2. The seat back 3 supports the back of the seated occupant. The seat device 1 may be provided with a reclining device 5 that allows the seat back 3 to be reclined relative to the seat cushion 2. A well-known reclining device can be used as the reclining device 5. The seat back 3 may also be fixed to the seat cushion 2 so that it cannot be reclined. A movement device 10, which will be described later, is arranged inside the seat back 3.

[0013] The seat back 3 is covered with a skin 6. The skin 6 is, for example, genuine leather, synthetic leather, etc. The movement device 10 disposed inside the seat back 3 is also covered with the skin 6.

[0014] <Movement Device> The movement device 10 will be described in detail with reference to Figs. 2 to 6. Fig. 2 is a front view showing the internal configuration of the seat back 3. Fig. 3 is a perspective view showing the internal configuration of the seat back 3. Fig. 4 is a perspective view showing the movement device 10 provided in the seat back 3. Fig. 5 is a schematic side view showing the configuration provided in the movement device 10 from the side. Fig. 6 is a top view showing the first frame 54, the second frame 55, and the auxiliary member 58 provided in the movement device 10 from above. Note that the cover member 59 is not shown in Fig. 3. Also, in Fig. 5, in consideration of ease of viewing the drawing, only the configuration necessary for explanation is shown.

[0015] 2 and 3, the movement device 10 is attached to a pair of side frames 11 that form the framework of the seat back 3. The side frames 11 are frames of the seat back 3 that extend in the up-down direction. The movement device 10 is located between the pair of side frames 11 in the left-right direction.

[0016] The moving device 10 is a device for moving the stimulation device 20. The moving device 10 also supports the back of a seated person. The moving device 10 includes the stimulation device 20, a pair of rotating shafts 52 and 53, and a support member 60. In this embodiment, the rotating shafts 52, 53, and the support member 60 constitute a first moving mechanism 50 that moves the stimulation device 20 in the up and down direction.

[0017] The stimulation device 20 stimulates the seat occupant seated in the seat apparatus 1. In this embodiment, the stimulation device 20 is a device for massaging the seat occupant by pressing the back of the seat occupant with a pad 21. In this embodiment, the moving apparatus 10 is provided with a plurality of stimulation devices 20. Note that the moving apparatus 10 may be provided with only one stimulation device 20.

[0018] Each stimulation device 20 includes a pad 21 and a drive motor 22. The drive motor 22 applies a driving force to a link mechanism (not shown). When the link mechanism is driven by the driving force from the drive motor 22, the pad 21 moves in the front-rear direction. The forward movement of the pad 21 presses against the back of the seated occupant. Each stimulation device 20 is attached to a first support plate 23.

[0019] In this embodiment, the second movement mechanism 30 moves each stimulation device 20 in the left-right direction. That is, the second movement mechanism 30 moves each stimulation device 20 in a direction intersecting the extension direction of the side frame 11. The second movement mechanism 30 includes a second support plate 31, a guide rail 32, a drive shaft 33, and a drive motor 34.

[0020] The second support plate 31 extends in the left-right direction. As shown in Fig. 5, the second support plate 31 may be composed of a bottom wall portion 311, a first standing wall portion 312, and a second standing wall portion 313. A guide rail 32 is attached to the bottom wall portion 311. The first standing wall portion 312 extends forward from the lower end of the bottom wall portion 311. The second standing wall portion 313 extends forward from the upper end of the bottom wall portion 311.

[0021] As shown in FIG. 4 , a guide rail 32 extending in the left-right direction is attached to the bottom wall portion 311 of the second support plate 31. The guide rail 32 is arranged parallel to the drive shaft 33. An engaging portion (not shown) of each first support plate 23 engages with the guide rail 32. The guide rail 32 guides the movement of the stimulation device 20 in the left-right direction. The stimulation device 20 is guided in the left-right direction by the guide rail 32 within a space surrounded by the bottom wall portion 311, the first standing wall portion 312, and the second standing wall portion 313.

[0022] The axial direction of the drive shaft 33 is the left-right direction. Both ends of the drive shaft 33 are fixed to fixing portions 35 that are fixed to the second support plate 31. A drive motor 34 applies a driving force to the drive shaft 33. A nut 24 attached to the first support plate 23 is threadedly engaged with the drive shaft 33. As the drive shaft 33 rotates, the first support plate 23 moves left-right.

[0023] As described above, the first movement mechanism 50 includes the rotation shaft 52, the rotation shaft 53, and the support member 60. The first movement mechanism 50 may further include a side frame 51, a guide pole 56, and a drive unit 70.

[0024] 2 and 3, the pair of side frames 51 of the first movement mechanism 50 are frames extending in the vertical direction. The pair of side frames 51 each extend in a direction along the side frames 11 of the seat back 3. The pair of side frames 51 are attached to the pair of side frames 11, respectively. A rotation shaft 52 and a rotation shaft 53 are attached to the pair of side frames 51.

[0025] The rotating shaft 52 is attached to the lower ends of the pair of side frames 51. The rotating shaft 53 is attached to the upper ends of the pair of side frames 51. More specifically, the rotating shaft 53 is attached to the pair of side frames 51 via brackets 15 fixed to the upper ends of the pair of side frames 51, respectively. The pair of rotating shafts 52 and 53 are arranged spaced apart in the vertical direction. The rotating shaft 52 may be attached to the lower part of the pair of side frames 11. The rotating shaft 53 may be attached to the upper part of the pair of side frames 11.

[0026] The axial directions of the rotation shaft 52 and the rotation shaft 53 are both in the left-right direction. That is, the axial direction of the rotation shaft 52 is a direction along the lower frame 12 that forms the skeleton of the seat back 3, and the axial direction of the rotation shaft 53 is a direction along the upper frame (not shown) that forms the skeleton of the seat back 3. The rotation shaft 52 is located forward of a shaft (not shown) to which the reclining device 5 is connected.

[0027] 3 and 4, the support member 60 is a membrane-like member that supports the seated occupant. More specifically, the support member 60 supports the back of the seated occupant via the cover 6. In the seat device 1 of the present disclosure, the back of the seated occupant is supported by the support member 60, so no pad that supports the back of the seated occupant is disposed inside the seat back 3.

[0028] The support member 60 is wound around the rotation shaft 52 and the rotation shaft 53. The support member 60 is wound around the rotation shaft 52 and the rotation shaft 53 so as to go around between them. The support member 60 is in a tensioned state between the rotation shaft 52 and the rotation shaft 53. The support member 60 is deployed inside the seat back 3. The surface of the support member 60 facing forward becomes the support surface that supports the back of the seated occupant. It is preferable that the support member 60 is a member that is difficult to stretch. The support member 60 is, for example, a film-like member made of fiber or resin.

[0029] 5, one end 601 of the support member 60 is attached to the first frame 54, which is fixed to the lower end of the second support plate 31. The support member 60 may be attached to the first frame 54 so that the front surface of the first frame 54 is covered by the support member 60. The other end 602 of the support member 60 is attached to the second frame 55, which is fixed to the upper end of the second support plate 31. The support member 60 may be attached to the second frame 55 so that the front surface of the second frame 55 is covered by the support member 60. The first frame 54 and the second frame 55 are frames that can support the back of a seated occupant.

[0030] As shown in Fig. 6, the first frame 54 has a curved surface 541 that is recessed toward the inside of the seat device 1. The curved surface 541 is formed on the front surface of the first frame 54. That is, the curved surface 541 is formed on the support surface of the first frame 54 that supports the back of the seated occupant. The curved surface 541 is preferably formed in the center portion of the first frame 54 in the left-right direction. A cushioning material 80 may be attached to the front surface of the first frame 54.

[0031] The second frame 55 has a curved surface 551 that is recessed toward the inside of the seat device 1. The curved surface 551 is formed on the front surface of the second frame 55. That is, the curved surface 551 is formed on the support surface of the second frame 55 that supports the back of the seated occupant. The curved surface 551 is desirably formed in the center portion of the second frame 55 in the left-right direction. The curvature of the curved surface 541 and the curvature of the curved surface 551 may be the same or different. Cushioning materials 80 may be attached to the front surfaces of the second frame 55.

[0032] 3 and 4, an opening 61 is formed in the support member 60 in correspondence with the placement position of the stimulation device 20. The opening 61 is formed on the surface of the support member 60 that supports the seated occupant. The opening 61 is located forward of the stimulation device 20. The first frame 54 and the second frame 55 each constitute a part of the opening 61.

[0033] The support member 60 is movable between the rotation axis 52 and the rotation axis 53. More specifically, any point on the support member 60 is movable from the rotation axis 53 toward the rotation axis 52. Also, any point on the support member 60 is movable from the rotation axis 52 toward the rotation axis 53. In this embodiment, the support member 60 moves in the up-down direction. That is, the support member 60 moves along the extension direction of the pair of side frames 11. The stimulation device 20 moves in the up-down direction together with the support member 60.

[0034] The movement device 10 may include a guide pole 56. The guide pole 56 is a pole for guiding the vertical movement of the second support plate 31. In this embodiment, the guide pole 56 guides a third support plate 57 to which the second support plate 31 is attached. The guide pole 56 is fixed to the side frame 51 or the frame of the seat back 3.

[0035] As shown in FIG. 5 , the drive unit 70 includes a drive motor 71 for moving the support member 60 in the up and down direction. The drive motor 71 is connected to the rotation shaft 53. The rotation shaft 53 is a drive shaft that rotates by the driving force from the drive motor 71. The drive unit 70 may include a speed reduction mechanism that reduces the speed of rotation transmitted from the drive motor 71 to the rotation shaft 53. The drive motor 71 may be connected to the rotation shaft 52. Alternatively, the drive motor 71 may be connected to each of the rotation shaft 52 and the rotation shaft 53. In this case, the movement device 10 includes multiple drive motors 71.

[0036] When the stimulation device 20 is moved up and down, the drive motor 71 of the drive unit 70 is driven. When the drive motor 71 is driven, the rotary shaft 53 rotates. The rotation of the rotary shaft 53 causes the support member 60 wound around the rotary shaft 53 to move up and down. The movement of the support member 60 pulls the second support plate 31, and the second support plate 31 moves together with the support member 60 as shown by the arrow in FIG. 5 . As the second support plate 31 moves up and down, the stimulation device 20 moves up and down together with the support member 60.

[0037] As shown in Fig. 4, the movement device 10 may include auxiliary members 58. The auxiliary members 58 are attached to the lower parts of the pair of side frames 51 via brackets 16. Each bracket 16 is attached to the lower part of the side frame 51 so as to protrude forward from the side frame 51. Note that each bracket 16 may also be attached to the lower parts of the pair of side frames 11, respectively.

[0038] The auxiliary member 58 assists in supporting the seated occupant at a position inside the seat device 1 relative to the support member 60. That is, the support member 60 slides on the front surface of the auxiliary member 58. The auxiliary member 58 presses the support member 60 from the inside toward the outside of the seat device 1. This puts the support member 60 in a tensioned state.

[0039] As shown in FIG. 6 , the auxiliary member 58 has a curved surface 581 that is concave toward the inside of the seat device 1. The curved surface 581 is formed on the front surface of the auxiliary member 58. That is, the curved surface 581 is formed on the support surface of the auxiliary member 58 that supports the back of the seated occupant. The curved surface 581 is desirably formed in the center portion of the auxiliary member 58 in the left-right direction. The curvature of the curved surface 581 may be the same as or different from the curvature of the curved surface 541 of the first frame 54. Furthermore, the curvature of the curved surface 581 may be the same as or different from the curvature of the curved surface 551 of the second frame 55. A cushioning material 80 may be attached to the front surface of the auxiliary member 58.

[0040] As shown in FIG. 2, a cover member 59 may be attached to the upper end of the pair of side frames 51. The cover member 59 covers the rotation shaft 53 and the support member 60 from the front. The cover member 59 may be attached to the side frame 51 of the movement device 10, or may be attached to the side frame 11 or upper frame (not shown) of the seat device 1. The cover member 59 can support the back of a seated occupant. A curved surface recessed toward the inside of the seat device 1 may be formed on the front surface of the cover member 59.

[0041] According to the above configuration, the back of the seated occupant can be supported by the support member 60 that moves together with the stimulation device 20. Therefore, the support member 60 can be positioned in an area between the pair of rotation shafts where the stimulation device 20 is not located. That is, no opening of a size corresponding to the movement range of the stimulation device 20 is formed in the seat back 3. This makes it possible to stably support the posture of the seated occupant.

[0042] Furthermore, the stimulation device 20 can provide stimulation to the seated occupant through the opening 61 formed in the support member 60. This allows stimulation to be provided more directly to the seated occupant.

[0043] By attaching the support member 60 to the first frame 54 and the second frame 55, the shape of the opening 61 is maintained by the first frame 54 and the second frame 55. Furthermore, by having the curved surfaces 541 and 551, respectively, the first frame 54 and the second frame 55 can be shaped to match the seated posture of the seated person. This makes it less likely that the seated person will feel uncomfortable.

[0044] Furthermore, the second movement mechanism 30 allows the stimulation device 20 to move not only vertically but also horizontally. This widens the movable range of the stimulation device 20. This allows the stimulation device 20 to stimulate a wider range of the back of the seated person.

[0045] The auxiliary member 58 has a curved surface 581 that is recessed toward the inside of the seat device 1, so that the auxiliary member 58 can be shaped to match the seated posture of the seated person. This makes it possible to reduce the discomfort felt by the seated person.

[0046] (First Modification) A first movement mechanism 50A according to this modified example will be described with reference to Fig. 7. Fig. 7 is a diagram showing a modified example of the first movement mechanism 50 included in the movement device 10. As shown in Fig. 7, a sprocket 532 may be attached to one end of a rotation shaft 53A included in the first movement mechanism 50A. A gear (not shown) that connects to a drive motor 71 is formed on the other end of the rotation shaft 53A. In this modified example, a plurality of through holes 62 into which the teeth of the sprocket 532 fit are formed on the right end of a support member 60A included in the first movement mechanism 50A.

[0047] As the rotary shaft 53A rotates, the sprocket 532 rotates. As the sprocket 532 rotates, it is pulled by the teeth of the sprocket 532 that fit into the through-hole 62. This causes the support member 60 to move in the vertical direction. Furthermore, as the sprocket 532 rotates, the teeth of the rotating sprocket 532 fit into the through-hole 62 of the support member 60, which moves in the vertical direction.

[0048] Furthermore, as shown in Fig. 8, an engagement portion 63 that engages with a slide member 81 may be formed on the right end and / or left end of the support member 60. Fig. 8 is a diagram showing the configuration of the support member 60 and the slide member 81. The slide member 81 is slidably attached to the side frame 51. The slide member 81 is formed with an engagement hole 82 that engages with the engagement portion 63. By engaging the engagement portion 63 with the slide member 81, the support member 60 can be tensioned in the left-right direction. Furthermore, the support member 60 can be moved up and down along the side frame 51.

[0049] (Second Modification) A first moving mechanism 50B according to this modified example will be described with reference to Fig. 9. Fig. 9 is a diagram showing a modified example of the first moving mechanism 50 provided in the moving device 10. In the first moving mechanism 50B, the drive motor 71 may be configured to drive the second support plate 31 to move the support member 60 in the vertical direction.

[0050] 9, the first movement mechanism 50B includes a drive unit 70B. The drive unit 70B has a drive motor 71 and a housing 72. The housing 72 is connected to the bottom wall portion 311 of the second support plate 31. The housing 72 may be attached to the second support plate 31 via a fixture or the like, or may be joined to the second support plate 31.

[0051] The housing 72 has insertion holes 73 and 74. A shaft 75 arranged parallel to the side frame 51 is inserted through the insertion hole 73. The side frame 51 is inserted through the insertion hole 74. The housing 72 accommodates a worm gear and a worm wheel gear.

[0052] The driving force of the drive motor 71 rotates the worm wheel gear, and a rotational force is transmitted to the worm gear, causing the housing 72 to move along the shaft 75. The movement of the housing 72 causes the second support plate 31 to move. When the second support plate 31 moves, the support member 60, pulled by the second support plate 31, moves in the vertical direction. The vertical movement of the housing 72 is guided by the side frame 51 inserted into the insertion hole 74. This allows the stimulation device 20 to move in the vertical direction.

[0053] (Third Modification) A second movement mechanism 30A according to this modification will be described with reference to Fig. 10. Fig. 10 is a diagram showing a modification of the second movement mechanism 30 included in the movement apparatus 10. In the second movement mechanism 30A, the stimulation device 20 may be moved in the left-right direction by a wire 36.

[0054] 10, the second movement mechanism 30A includes a wire 36. The wire 36 is wound around a drive drum 37 that rotates when driven by a drive motor 34. The wire 36 is also wound around pulleys 38 attached to both ends of the second support plate 31 in the left-right direction.

[0055] In the left-right direction, the right stimulation device 20 is located between the drive drum 37 and the right pulley 38. In the left-right direction, the left stimulation device 20 is located between the drive drum 37 and the left pulley 38. The stimulation devices 20 are attached to the wire 36 via a mounting fixture 39. More specifically, the right stimulation device 20 is attached to the wire 36 running on the upper side. The left stimulation device 20 is attached to the wire 36 running on the lower side.

[0056] When the drive drum 37 is rotated by the drive motor 34, the wire 36 is fed out from the drive drum 37 and wound up around the drive drum 37. This causes the wire 36 to move, and each stimulation device 20 to move in the left-right direction.

[0057] The second movement mechanism 30A may include a chain or a belt instead of the wire 36. In this case, the second movement mechanism 30A includes a drive gear around which the chain or belt is wound instead of the drive drum 37. The second movement mechanism 30A may move the stimulation device 20 attached to the chain or belt by rotating the drive gear.

[0058] [Embodiment 2] Another embodiment of the present disclosure will be described below with reference to Figures 11 and 12. Figures 11 and 12 are schematic diagrams showing an example of a movement device 10C according to a second embodiment of the present disclosure. For ease of explanation, members having the same functions as those described in the above embodiments are denoted by the same reference numerals, and their description will not be repeated. A support member 60C according to the second embodiment differs from the support member 60 according to the first embodiment in that an opening 61 is not formed.

[0059] 11, the transfer apparatus 10C includes a support member 60C that supports the back of a seated occupant. The support member 60C is wound around a pair of rotation shafts 52 and 53. In this embodiment, the support member 60C is in a tensioned state by bent portions 511 formed on a pair of side frames 51.

[0060] The support member 60C is formed with a bag-shaped portion 65 for accommodating the stimulation device 20. The bag-shaped portion 65 is divided into two portions in the left-right direction. The bag-shaped portion 65 is composed of a first bag-shaped portion 65L for accommodating the left stimulation device 20 and a second bag-shaped portion 65R for accommodating the right stimulation device 20. Each stimulation device 20 may be movable in the left-right direction inside the first bag-shaped portion 65L and the second bag-shaped portion 65R. Note that the bag-shaped portion 65 does not have to be divided into multiple portions. That is, multiple stimulation devices 20 may be accommodated in the same space formed by the bag-shaped portion 65.

[0061] The configuration of the first sack portion 65L will be described with reference to Fig. 12. Note that the second sack portion 65R has the same configuration as the first sack portion 65L, and therefore its description will be omitted. The first sack portion 65L has a front sack portion 651L and a rear sack portion 652L. The front sack portion 651L is a portion that covers the front of the stimulation device 20. The rear sack portion 652L is a portion that covers the rear of the stimulation device 20. In the sack portion 65, the stimulation device 20 is accommodated in a space formed between the front sack portion 651L and the rear sack portion 652L.

[0062] The front bag-shaped portion 651L is a member additionally attached to the support member 60C. The rear bag-shaped portion 652L is a portion of the support member 60C that overlaps with the front bag-shaped portion 651L attached to the support member 60C. In other words, it is desirable that the rear bag-shaped portion 652L is not a member additionally attached to the support member 60C, but is continuous with the support member 60C. The rear bag-shaped portion 652L is a member that is difficult to stretch, similar to the support member 60C. The front bag-shaped portion 651L of the support member 60C may be a stretchable member.

[0063] By storing the stimulation device 20 in the bag-shaped portion 65 of the support member 60, the stimulation device 20 moves together with the support member 60. Furthermore, by forming the bag-shaped portion 65, it is not necessary to form an opening in the support member 60. This makes it possible to more stably support the posture of a seated occupant.

[0064] The front bag-shaped portion 651L has elasticity, so that the forward movement of the pad 21 of the stimulation device 20 is not easily hindered. That is, when the pad 21 moves forward, the front bag-shaped portion 651L can be stretched and deformed. This can improve the efficiency of stimulation to the seated occupant.

[0065] Other Embodiments In the above-described embodiment, the stimulation device 20 that performs a massage has been described, but the present invention is not limited to this configuration. The stimulation device 20 may be, for example, a fan that blows air toward a seated person, a heater, a speaker, or other device. The stimulation device 20 may also be a vibration device that generates vibrations.

[0066] In the above-described embodiment, the movement devices 10, 10C that move the stimulation device 20 are configured to be disposed inside the seat back 3, but the present invention is not limited to such a configuration. The movement devices 10, 10C may be disposed inside the seat cushion 2. In this case, the support members 60, 60A, 60C are deployed inside the seat cushion 2 and support the seated occupant via the surface of the seat cushion 2. The movement devices 10, 10C may be attached to a frame that forms the skeleton of the seat cushion 2.

[0067] In the above-described embodiment, the first movement mechanisms 50, 50A, 50B, and 50C are configured to move the stimulation device 20 in the up-down direction, but the present invention is not limited to this configuration. The first movement mechanisms 50, 50A, 50B, and 50C may also be configured to move the stimulation device 20 in the left-right direction. In this case, the axial directions of the rotation shaft 52 and the rotation shafts 53 and 53A may be vertical. That is, the rotation shaft 52 and the rotation shafts 53 and 53A may each extend in a direction along the side frame 11 of the seat back 3. As a result, the support members 60, 60A, and 60C move in the left-right direction. That is, the stimulation device 20 moves in the left-right direction together with the support members 60, 60A, and 60C. In this case, the second movement mechanisms 30 and 30A move the stimulation device 20 in the up-down direction.

[0068] In the above-described embodiment, the support members 60, 60C are wound around the rotating shaft 52 and the rotating shafts 53, 53A, but this is not limiting. The support member 60 may be wound around the rotating shafts 52, 53, 53A by being wound around each of the rotating shafts 52, 53, 53A. In this case, each of the rotating shafts 52, 53, 53A functions as a winding shaft for winding up the support member 60.

[0069] 〔summary〕 A seat device according to aspect 1 of the present disclosure comprises a membrane-shaped support member that supports an occupant, a pair of rotating shafts around which the support member is wrapped, and a stimulation device that provides stimulation to the occupant, and the stimulation device is movable between the pair of rotating shafts together with the support member.

[0070] According to the configuration of the first aspect, the seated occupant can be supported by the support member that moves together with the stimulation device. Therefore, the support member can be positioned in an area between the pair of rotation shafts where the stimulation device is not located. This allows the posture of the seated occupant to be stably supported.

[0071] In a seat device according to a second aspect of the present disclosure, in the first aspect described above, the support member may be formed with an opening corresponding to the position where the stimulation device is to be disposed.

[0072] According to the configuration of the second aspect, the stimulation device can provide stimulation to the seated occupant through the opening formed in the support member, thereby providing stimulation more directly to the seated occupant.

[0073] The seat device according to aspect 3 of the present disclosure, in accordance with aspect 2 above, further comprises a first frame to which one end of the support member constituting the opening is attached, and a second frame to which the other end of the support member constituting the opening is attached, and the first frame and the second frame may have curved surfaces that are concave toward the inside of the seat device.

[0074] According to the configuration of the third aspect, the first frame and the second frame maintain the shape of the opening of the support member. Furthermore, since the first frame and the second frame have curved surfaces that are recessed toward the inside of the seat device, the first frame and the second frame can be shaped to match the seated posture of the seated occupant. This makes it less likely that the seated occupant will feel uncomfortable.

[0075] A seat device according to a fourth aspect of the present disclosure is based on the first aspect, and the support member may be formed with a bag-like portion that houses the stimulation device.

[0076] According to the configuration of the fourth aspect, the stimulation device is accommodated in the bag-shaped portion of the support member, so that the stimulation device moves together with the support member. Furthermore, by forming the bag-shaped portion, it is not necessary to form an opening in the support member. This allows for more stable support of the posture of the seated occupant.

[0077] A seat device according to aspect 5 of the present disclosure may be configured in the above-mentioned aspect 4 such that the bag-shaped portion has a front bag-shaped portion that covers the front of the stimulation device and a rear bag-shaped portion that covers the rear of the stimulation device, and the front bag-shaped portion is an elastic material.

[0078] According to the above configuration, the front bag-shaped portion has elasticity, which makes it difficult for the forward movement of the stimulation device to be hindered, thereby improving the efficiency of stimulation to the seated occupant.

[0079] The seat device according to a sixth aspect of the present disclosure, in any one of the first to fifth aspects, may further include a movement mechanism that moves the stimulation device in a direction intersecting with the movement direction of the support member.

[0080] According to the configuration of the sixth aspect, the stimulation device can move not only in the direction of movement of the support member but also in a direction intersecting the direction of movement of the support member. This widens the range of movement of the stimulation device. This allows the stimulation device to stimulate a wider area of ​​the back of the seated occupant.

[0081] The seat device according to aspect 7 of the present disclosure, in any of aspects 1 to 6 above, may further include an auxiliary member that assists in supporting the seated occupant further inward of the seat device than the support member, and the auxiliary member may have a curved surface that is concave toward the inside of the seat device.

[0082] According to the configuration of the seventh aspect, the auxiliary member has a curved surface that is recessed toward the inside of the seat device, so that the auxiliary member can be shaped to match the seated posture of the seated occupant, thereby making it less likely that the seated occupant will feel uncomfortable.

[0083] The present disclosure is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present disclosure. [Explanation of symbols]

[0084] 1 Seat device 5 Reclining device 10. Mobile Devices 20 Stimulation Device 30 Second movement mechanism 50 1st movement mechanism 52 Rotation axis 53 Rotation axis 54 1st Frame 55 2nd frame 58 Auxiliary parts 60 Support member 65 Pouch 541 Curved surface 551 Curved surface

Claims

1. a membrane-like support member that supports a seated occupant; a pair of rotating shafts around which the support member is wound; a stimulation device for providing stimulation to the seated occupant, A seat apparatus, wherein the stimulation device is movable between the pair of rotation axes together with the support member.

2. The support member has an opening formed therein corresponding to the position where the stimulation device is to be disposed. The seat device according to claim 1 .

3. a first frame to which one end of the support member that defines the opening is attached; a second frame to which the other end of the support member that forms the opening is attached, the first frame and the second frame have curved surfaces that are recessed toward the inside of the seat device; The seat device according to claim 2 .

4. The support member has a pouch-shaped portion formed therein for accommodating the stimulation device. The seat device according to claim 1 .

5. The sac-shaped portion has a front sac-shaped portion that covers a front of the stimulation device and a rear sac-shaped portion that covers a rear of the stimulation device, The front bag-like portion is a stretchable member. The seat device according to claim 4.

6. Further provided is a movement mechanism that moves the stimulation device in a direction intersecting the movement direction of the support member. The seat device according to claim 1 .

7. The seat device further includes an auxiliary member that assists in supporting the seated occupant on an inner side of the support member, The auxiliary member has a curved surface that is recessed toward the inside of the seat device. The seat device according to claim 1 .

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