Seat device

Abstract

To prevent deterioration of supporting performance of a seat device.SOLUTION: A seat device (1) includes a seat pad (7) configured to support a seated person, a stimulation device (20) configured to stimulate the seated person, and a guide rail (30) configured to guide traveling of the stimulation device (20), wherein a groove portion (10) formed corresponding to a traveling range of the stimulation device (20) is formed in the seat pad (7), and an elastic deformation member (50) capable of supporting the seated person is disposed in the groove portion (10).SELECTED DRAWING: Figure 2

Description

[Technical Field]

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

[0002] Patent Document 1 describes a vehicle seat device equipped with a massage mechanism. A recessed groove is formed in the up-down direction in the seat back pad that supports the back of the seated occupant. A massaging device moves up and down in the recessed groove to massage the seated occupant. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-071237 Summary of the Invention [Problem to be solved by the invention]

[0004] The seat device of Patent Document 1 requires the formation of a recessed groove corresponding to the range of movement of a solid object. In a seat device having such a groove formed there is room for further improvement in the support performance of the seat device that supports a seated occupant.

[0005] An aspect of the present disclosure aims to prevent a decrease in the support performance of a seat device. [Means for solving the problem]

[0006] In order to solve the above problems, a seat device according to one aspect of the present disclosure comprises a support member that supports an occupant, a stimulation device that stimulates the occupant, and a guide rail that guides the movement of the stimulation device, wherein the support member has a groove formed therein that corresponds to the movement range of the stimulation device, and an elastically deformable member capable of supporting the occupant is arranged in the groove. [Effects of the Invention]

[0007] According to one aspect of the present disclosure, it is possible to prevent a decrease in the support performance of the seat device. [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 perspective view showing an example of the internal configuration of a seat back provided in the seat device. [Figure 3] FIG. 4 is a perspective view showing a groove formed in a seat pad. [Figure 4] 10A and 10B are side views for explaining the configuration of a groove portion and a stimulation device. [Figure 5] FIG. 4 is a perspective view illustrating the configuration of a groove and an elastic deformation member. [Figure 6] FIG. 10 is a perspective view showing an elastic deformation member according to a modified example of the first embodiment. [Figure 7] FIG. 10 is a perspective view showing an elastic deformation member according to a modified example of the first embodiment. [Figure 8] FIG. 10 is a perspective view showing an example of a stimulation device according to a second embodiment. [Figure 9] FIG. 10 is a perspective view showing a stimulation device according to a modified example of the second embodiment. 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 equipped 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. The seat back 3 is covered with a cover 6. The cover 6 is, for example, genuine leather or synthetic leather.

[0013] <Seatback internal structure> An example of the internal configuration of the seat back 3 included in the seat device 1 will be described with reference to Figs. 2 to 5. Fig. 2 is a schematic diagram showing an example of the internal configuration of the seat back included in the seat device. Fig. 3 is a perspective view showing a groove portion 10 formed in the seat pad 7. Fig. 4 is a side view for explaining the configuration of the groove portion 10 and the stimulation device 20. Fig. 5 is a perspective view for explaining the configuration of the groove portion 10 and the elastic deformation member 50. Note that Fig. 2 shows the seat back 3 in a state where the skin 6 covering the seat back 3 has been removed. In Figs. 3 and 4, the elastic deformation member 50 has been omitted for ease of viewing.

[0014] 2, the seat back 3 includes a seat pad 7, a stimulation device 20, a guide rail 30, and an elastic deformation member 50. An appropriate range within which the stimulation device 20 moves on the seat back 3 is set for the stimulation device 20. In this embodiment, this range is referred to as the "moving range of the stimulation device 20."

[0015] The seat pad 7 supports the back of the seated occupant. The seat pad 7 is an example of a support member. The material constituting the seat pad 7 is, for example, urethane. The front surface of the seat pad 7 is a support surface 7A that supports the back of the seated occupant.

[0016] The seat pad 7 has a groove 10 formed corresponding to the travel range of the stimulation device 20. The groove 10 enables the stimulation device 20 to travel within a set travel range. The groove 10 is formed on the support surface 7A of the seat pad 7. The groove 10 extends along the up-down direction of the seat back 3. As shown in FIG. 3 , the groove 10 is a bottomed groove. In this embodiment, the groove 10 has a left side surface 11, a right side surface 12, a bottom surface 13, and a lower surface 14. In this embodiment, the upper part of the groove 10 is open.

[0017] The longitudinal direction of the left side surface portion 11 and the right side surface portion 12 is along the vertical direction, and the lateral direction of the left side surface portion 11 and the right side surface portion 12 is along the front-to-rear direction. The bottom surface portion 13 is a surface that connects the left side surface portion 11 and the right side surface portion 12. The bottom surface portion 13 is a surface that faces forward. The bottom surface portion 13 is a surface that faces the same direction as the support surface 7A of the seat pad 7. The longitudinal direction of the bottom surface portion 13 is along the vertical direction, and the lateral direction of the bottom surface portion 13 is along the left-to-right direction. The bottom surface portion 13 is located rearward of the support surface 7A. The lower surface portion 14 is a surface that faces upward. The lower surface portion 14 is a surface that connects the lower ends of the left side surface portion 11, the right side surface portion 12, and the bottom surface portion 13. The lower surface portion 14 is the lower end of the groove portion 10.

[0018] The guide rail 30 guides the travel of the stimulation device 20. The guide rail 30 may be fixed to a seat back frame (not shown) that constitutes the framework of the seat back 3. For example, the upper end of the guide rail 30 may be fixed to an upper frame of the seat back 3, and the lower end of the guide rail 30 may be fixed to a lower frame of the seat back 3.

[0019] The guide rail 30 extends in the up-down direction. The extension direction of the guide rail 30 is a direction along the support surface 7A and is also the longitudinal direction of the guide rail 30. The width direction of the guide rail 30 is a direction perpendicular to the extension direction of the guide rail 30 and a direction along the support surface 7A. In this embodiment, the width direction of the guide rail 30 is a direction along the left-right direction. The thickness direction of the guide rail 30 is a direction perpendicular to the extension direction of the guide rail 30 and a direction perpendicular to the support surface 7A. In this embodiment, the thickness direction of the guide rail 30 is a direction along the front-rear direction. The guide rail 30 may be inserted into an insertion hole (not shown) formed in the lower surface portion 14.

[0020] As shown in FIG. 4, the guide rail 30 is disposed on the bottom surface portion 13. The guide rail 30 is located at the center of the bottom surface portion 13 in the width direction of the guide rail 30. The guide rail 30 is located between the support surface 7A and the bottom surface portion 13 in the thickness direction of the guide rail 30. That is, the guide rail 30 is located forward of the bottom surface portion 13 in the front-rear direction. The guide rail 30 and the bottom surface portion 13 abut against each other. Note that a gap may be formed between the guide rail 30 and the bottom surface portion 13 in the thickness direction of the guide rail 30. Furthermore, a portion of the guide rail 30 may be embedded in the bottom surface portion 13.

[0021] 2 and 3, the stimulation device 20 stimulates the seat occupant seated in the seat apparatus 1. For example, the stimulation device 20 is a device for massaging the seat occupant by pressing the back of the seat occupant with a pad provided in the main body 21. The pad moves in the front-rear direction as a driving force is transmitted from a link drive motor (not shown) to a link mechanism. The pad moves forward, thereby pressing the back of the seat occupant.

[0022] The stimulation device 20 is not limited to a device that performs a massage. The stimulation device 20 may be, for example, a fan that blows air toward a seated person, a heater, a speaker, or the like. The stimulation device 20 may also be a vibration device that generates vibrations.

[0023] The stimulation device 20 travels in a direction along the support surface 7A by a driving force from a travel drive motor (not shown). The traveling direction of the stimulation device 20 is the same as the extension direction of the guide rail 30. In this embodiment, the stimulation device 20 travels in the up-and-down direction. The stimulation device 20 may be kept waiting at a standby position in a standby state where it does not provide stimulation to the seated occupant. Figures 2 and 3 show the stimulation device 20 located at the standby position. In this embodiment, the standby position of the stimulation device 20 is located above the seat back 3. Note that the standby position of the stimulation device 20 may also be located below the seat back 3.

[0024] The stimulation device 20 includes a main body 21 and a pressing part 22. The main body 21 has a functional part that provides stimulation to a seated person. The main body 21 is attached to a guide rail 30 and runs on the guide rail 30.

[0025] 2, the pressing portion 22 presses and deforms the elastic deformation member 50 arranged in the groove portion 10. A plurality of pressing portions 22 are provided on the main body portion 21. The plurality of pressing portions 22 are provided on both end sides of the main body portion 21 in the extension direction of the guide rail 30. That is, the plurality of pressing portions 22 are provided on the upper end side and the lower end side of the main body portion 21, respectively.

[0026] In this embodiment, the pressing portion 22 is shaped to press the elastic deformation member 50 and push the elastic deformation member 50 aside in the width direction of the guide rail 30. More specifically, the pressing portion 22 is shaped so that the width of the pressing portion 22 in the width direction of the guide rail 30 narrows from the base portion connected to the main body portion 21 toward the tip portion 221. The pressing portion 22 is triangular when viewed in the thickness direction of the guide rail 30. The pressing portion 22 has a pressing surface 222 that presses the elastic deformation member 50. The pressing surface 222 is a surface that comes into contact with the elastic deformation member 50 and faces in the width direction of the guide rail 30.

[0027] The tip 221 of the pressing portion 22 is not limited to an angular configuration. The tip 221 of the pressing portion 22 may be a flat surface facing the extension direction of the guide rail 30. The pressing portion 22 may also have a curved surface that narrows the width of the pressing portion 22 from the base portion connected to the main body portion 21 toward the tip 221. For example, the pressing portion 22 may have a semicircular shape when viewed in the thickness direction of the guide rail 30. That is, the pressing surface 222 of the pressing portion 22 may be a curved surface.

[0028] As shown in Fig. 3, the width W1 of the stimulation device 20 in the width direction of the guide rail 30 is narrower than the width W2 (see Fig. 5) of the groove portion 10 in the width direction of the guide rail 30. As shown in Fig. 4, in the thickness direction of the guide rail 30, a gap S is formed between the stimulation device 20 running on the guide rail 30 and the bottom surface portion 13. More specifically, the gap S is formed between the main body portion 21 and the bottom surface portion 13. The pressing portion 22 and the bottom surface portion 13 may be in contact with each other.

[0029] 4, the stimulation device 20 is located closer to the guide rail 30 than the support surface 7A in the thickness direction of the guide rail 30. That is, the stimulation device 20 is located closer to the bottom surface 13 than the support surface 7A in the thickness direction of the guide rail 30. With this configuration, the stimulation device 20 does not protrude forward beyond the support surface 7A, which makes it less likely that the seated occupant will feel uncomfortable.

[0030] The elastic deformation member 50 is a member capable of supporting a seated occupant. The elastic deformation member 50 is a member that is pressed by the pressing portion 22 and elastically deforms. It is preferable that the elastic deformation member 50 has anisotropy in the direction of elastic deformation. More specifically, it is preferable that the elastic deformation member 50 has a structure that makes it easier to elastically deform in the width direction of the guide rail 30 than in the thickness direction of the guide rail 30.

[0031] The elastic deformation members 50 extend along the extension direction of the guide rail 30. In this embodiment, two elastic deformation members 50 are arranged on the bottom surface portion 13 of the groove portion 10. The two elastic deformation members 50 are arranged on both sides of the guide rail 30 in the width direction of the guide rail 30. That is, on the bottom surface portion 13, an elastic deformation member 50 located on the left side of the guide rail 30 and an elastic deformation member 50 located on the right side of the guide rail 30 are arranged. Note that, on the bottom surface portion 13, elastic deformation members 50 may be arranged only on the left or right side of the guide rail 30. Furthermore, the elastic deformation members 50 do not have to be arranged in the standby position of the stimulation device 20.

[0032] 5, the height H1 of the elastic deformation member 50 in the thickness direction of the guide rail 30 is approximately the same as the height H2 of the groove portion 10 in the thickness direction of the guide rail 30. In other words, the height H2 of the groove portion 10 is the depth of the groove portion 10. In this embodiment, the height H2 is equal to the height of the right side surface portion 12 in the thickness direction of the guide rail 30. Note that the height H1 of the elastic deformation member 50 may be smaller than the height H2 of the groove portion 10.

[0033] As shown in Fig. 5, a portion of the groove 10 may be impregnated with a nonwoven fabric material 60. In this embodiment, the nonwoven fabric material 60 is impregnated into a portion of each of the left side surface portion 11 and the right side surface portion 12. The nonwoven fabric material 60 is also impregnated into the bottom surface portion 13. By impregnating a portion of the groove 10 with the nonwoven fabric material 60, the strength of the groove 10 can be increased. This reduces the risk of the groove 10 being crushed in the thickness direction of the guide rail 30.

[0034] <Stimulation device operation> When the traveling drive motor is driven, the stimulation device 20 travels up and down along the guide rail 30. For example, when the stimulation device 20 moves downward, the pressing surface 222 of the pressing unit 22 located downward presses the elastic deformation member 50. The elastic deformation member 50 pressed by the pressing surface 222 contracts in the width direction of the guide rail 30. In this way, the pressing unit 22 pushes aside the elastic deformation member 50. By the pressing unit 22 pushing aside the elastic deformation member 50, the influence of the elastic deformation member 50 on the traveling main body unit 21 is reduced. This allows the stimulation device 20 to travel more smoothly.

[0035] When the stimulation device 20 is to be moved along the support surface 7A of the seat pad 7 on the seat back 3, it is necessary to form grooves 10 on the support surface 7A of the seat pad 7 corresponding to the moving range of the stimulation device 20. Therefore, in the grooves 10 of the seat pad 7, the back of the seated person falls into the space formed by the grooves 10. As a result, it is considered that the support performance of the seat back 3 for the seated person will be reduced.

[0036] According to the above configuration, the elastic deformation member 50 is disposed in the groove 10 formed in the seat pad 7. Therefore, the elastic deformation member 50 can support the seated occupant in the groove 10. This makes it possible to prevent a decrease in the support performance of the seat device 1.

[0037] Furthermore, since the stimulation device 20 includes the pressing portion 22, when the stimulation device 20 runs, the elastic deformation member 50 is pressed by the pressing portion 22 of the stimulation device 20 and elastically deformed. This reduces the interference caused by the elastic deformation member 50 with the running of the stimulation device 20.

[0038] Furthermore, by arranging the guide rail 30 on the bottom surface portion 13, the seat pad 7 is arranged between the guide rail 30 and a member arranged inside the seat back 3. This reduces the risk that the member arranged inside the seat back 3 will interfere with the traveling stimulation device 20.

[0039] Furthermore, by forming the gap S, when the stimulation device 20 runs, the elastic deformation member 50, which is pressed and deformed by the pressing portion 22, can be positioned in the gap S formed between the stimulation device 20 and the bottom surface portion 13. This can further reduce the interference caused by the elastic deformation member 50 with the running of the stimulation device 20.

[0040] Furthermore, the two elastic deformation members 50 are arranged on both sides of the guide rail 30 in the width direction of the guide rail 30. With this configuration, the range over which the elastic deformation members 50 support the seated occupant can be made wider than when the elastic deformation members 50 are arranged only on one side of the guide rail 30 in the width direction of the guide rail 30. This makes it possible to further reduce the deterioration of the support performance of the seat device 1.

[0041] Furthermore, the elastic deformation member 50 has anisotropy in the direction of elastic deformation. This makes it easier for the pressing portion 22 to elastically deform the elastic deformation member 50 when the stimulation device 20 is traveling, and makes it harder for the elastic deformation member 50 to elastically deform when the stimulation device 20 is supporting a seated person. This reduces the deterioration of the support performance of the seat back 3 and allows the stimulation device 20 to travel smoothly.

[0042] Furthermore, the elastic deformation member 50 is easily elastically deformed in the width direction of the guide rail 30. As a result, when pressed by the pressing portion 22 of the stimulation device 20, the elastic deformation member 50 is deformed in the width direction of the guide rail 30. This can further reduce the interference caused by the elastic deformation member 50 with the travel of the stimulation device 20.

[0043] [Modification] An elastically deforming member according to a modified example of the first embodiment will be described with reference to Fig. 6 and Fig. 7. Fig. 6 and Fig. 7 are perspective views showing an elastically deforming member according to a modified example of the first embodiment.

[0044] 6, a plurality of elastic deformation members 50A are discontinuously arranged in the groove portion 10 in the extension direction of the guide rail 30. The plurality of elastic deformation members 50A are arranged in the groove portion 10 at regular intervals in the extension direction of the guide rail 30. Note that the regular intervals between the plurality of elastic deformation members 50 arranged on the left side of the guide rail 30 may be different from the regular intervals between the plurality of elastic deformation members 50 arranged on the right side of the guide rail 30.

[0045] According to the configuration in which the multiple elastic deformation members 50A are discontinuously arranged, the area in which the stimulation device 20 and the elastic deformation members 50A come into contact with each other is reduced within the travel range of the stimulation device 20. This reduces the resistance generated between the stimulation device 20 and the elastic deformation members 50A. This allows the stimulation device 20 to travel more smoothly.

[0046] As indicated by reference numeral 100 in FIG. 7 , a plurality of plate-shaped elastic deformation members 50B may be arranged in the groove portion 10 in the width direction of the guide rail 30. The elastic deformation members 50B each extend in the thickness direction of the guide rail 30. The ends of the bottom surface portions 13 of each elastic deformation member 50B in the thickness direction of the guide rail 30 may be interconnected. Each elastic deformation member 50B is elastically deformable in the width direction of the guide rail 30, as shown by the arrows. It is desirable that each elastic deformation member 50B is configured so as to be less susceptible to elastic deformation in the thickness direction of the guide rail 30.

[0047] As indicated by reference numeral 101 in Fig. 7, an elastic deformation member 50C may be disposed in the groove portion 10. The elastic deformation member 50C has a honeycomb accordion structure. The honeycomb accordion structure is a combination of a honeycomb structure in which a plurality of polygonal pillars are arranged and an accordion structure that can be folded in the width direction of the guide rail 30. By having the elastic deformation member 50C have a honeycomb accordion structure, it is possible to make the elastic deformation member 50C more easily elastically deform in the width direction of the guide rail 30 than in the thickness direction of the guide rail 30.

[0048] As indicated by reference numeral 101 in Fig. 7, an elastic deformation member 50D having a lattice structure may be disposed in the groove portion 10. A lattice structure is a structure in which a plurality of lattices are arranged in a regular pattern. By having the elastic deformation member 50D have a lattice structure, it is possible to make the elastic deformation member 50D more susceptible to elastic deformation in the width direction of the guide rail 30 than in the thickness direction of the guide rail 30.

[0049] [Embodiment 2] A second embodiment of the present disclosure will be described below with reference to FIG. 8. FIG. 8 is a schematic diagram showing an example of a stimulation device 20A according to the second embodiment. For ease of explanation, the same reference numerals are used to designate components having the same functions as those described in the above embodiments, and the description thereof will not be repeated. The pressing portion of the stimulation device 20A according to this embodiment differs from the pressing portion 22 of the stimulation device 20 according to the first embodiment in that it presses the elastic deformation member 50 from the thickness direction of the guide rail 30.

[0050] 8, the stimulation device 20A includes a plurality of pressure rollers 23. The plurality of pressure rollers 23 are provided on a main body 21 of the stimulation device 20A. Two pressure rollers 23 are provided on each end of the main body 21 in the extension direction of the guide rail 30. The guide rail 30 is located between the two pressure rollers 23 provided on each end of the main body 21 in the extension direction of the guide rail 30.

[0051] The multiple pressure rollers 23 each come into contact with the elastic deformation member 50. The multiple pressure rollers 23 each run on the elastic deformation member 50. The multiple pressure rollers 23 each function as a pressing portion that presses the elastic deformation member 50. The elastic deformation member 50 is pressed in the thickness direction of the guide rail 30 by each pressure roller 23 and elastically deforms.

[0052] [Modification] A stimulation device 20B according to a modification of the second embodiment will be described with reference to Fig. 9. Fig. 9 is a perspective view showing the stimulation device 20B according to the modification of the second embodiment.

[0053] 9, the stimulation device 20B includes two pressure plates 24. The two pressure plates 24 are attached to the main body 21 of the stimulation device 20B. The two pressure plates 24 are attached to both end sides of the main body 21 in the width direction of the guide rail 30, respectively.

[0054] The longitudinal direction of the two pressure plates 24 is the extension direction of the guide rail 30. The length of each pressure plate 24 in the extension direction of the guide rail 30 is longer than the length of the main body 21 in the extension direction of the guide rail 30. Each pressure plate 24 has a curved portion 26. The curved portion 26 is formed on both end portions 25 sides in the extension direction of the guide rail 30.

[0055] The two pressure plates 24 each abut against the elastic deformation member 50. The two pressure plates 24 each slide on the elastic deformation member 50. The two pressure plates 24 each function as a pressing portion that presses the elastic deformation member 50. The elastic deformation member 50 is pressed in the thickness direction of the guide rail 30 by each pressure plate 24 and elastically deforms. The pressing surface of each pressure plate 24 that presses the elastic deformation member 50 is the surface on the opposite side in the thickness direction of the guide rail 30 from the surface to which the main body portion 21 is attached.

[0056] Other Embodiments In the above-described embodiment, the seat back 3 is configured to include the grooves 10, the stimulation devices 20, 20A, and 20B, the guide rails 30, and the elastic deformation members 50, 50A, 50B, 50C, and 50D, but is not limited to this configuration. The grooves 10, the stimulation devices 20, 20A, and 20B, the guide rails 30, and the elastic deformation members 50, 50A, 50B, 50C, and 50D may be provided in the seat cushion 2.

[0057] In the above-described embodiment, the guide rail 30 extends in the vertical direction, but is not limited to this configuration. The guide rail 30 may extend in the horizontal direction. In this case, the stimulation device 20 runs in the horizontal direction.

[0058] 〔summary〕 The seat device according to aspect 1 of the present disclosure comprises a support member for supporting an occupant, a stimulation device for providing stimulation to the occupant, and a guide rail for guiding the movement of the stimulation device, wherein the support member has a groove formed therein corresponding to the movement range of the stimulation device, and an elastically deformable member capable of supporting the occupant is disposed in the groove.

[0059] According to the configuration of the first aspect, the elastically deforming member is disposed in the groove formed in the support member. Therefore, the elastically deforming member can support the seated occupant in the groove. This prevents a decrease in the support performance of the seat device.

[0060] A seat device according to a second aspect of the present disclosure is based on the first aspect, and the stimulation device may include a pressing portion that presses and deforms the elastic deformation member.

[0061] According to the configuration of aspect 2, when the stimulation device runs, the elastic deformation member is pressed by the pressing portion of the stimulation device and elastically deformed, thereby reducing the interference caused by the elastic deformation member with the running of the stimulation device.

[0062] A seat device according to aspect 3 of the present disclosure may be such that, in aspect 1 or 2 above, the groove portion has a bottom surface portion facing in the same direction as the support surface of the support member, and the guide rail is arranged on the bottom surface portion.

[0063] According to the configuration of the third aspect, the support member is disposed between the guide rail and the member disposed inside the seat apparatus, thereby reducing the risk that the member disposed inside the seat apparatus will interfere with the traveling stimulation device.

[0064] In the seat device according to aspect 4 of the present disclosure, in the above-mentioned aspect 2 or 3, the groove portion may have a bottom surface portion facing in the same direction as the support surface of the support member, and a gap may be formed between the stimulation device and the bottom surface portion in the thickness direction of the guide rail.

[0065] According to the configuration of the fourth aspect, when the stimulation device runs, the elastically deforming member that has been pressed and deformed by the pressing portion can be positioned in the gap formed between the stimulation device and the bottom portion, thereby further reducing the interference caused by the elastically deforming member with the running of the stimulation device.

[0066] In the seat apparatus according to aspect 5 of the present disclosure, in any one of aspects 1 to 4, the stimulation device may be positioned closer to the guide rail than the support surface of the support member in the thickness direction of the guide rail. According to the configuration of aspect 5, the stimulation device does not protrude from the support surface, which makes it less likely that the seated occupant will feel uncomfortable.

[0067] A seat device according to aspect 6 of the present disclosure may be such that, in any of aspects 1 to 5 above, a plurality of elastic deformation members are arranged in the groove portion, and the plurality of elastic deformation members are arranged on both sides of the guide rail in the width direction of the guide rail.

[0068] According to the configuration of the sixth aspect, the range over which the elastic deformation members support the seated occupant can be made wider than when the elastic deformation members are disposed only on one side of the guide rail in the width direction of the guide rail, thereby further reducing the deterioration of the support performance of the seat device.

[0069] A seat device according to aspect 7 of the present disclosure, in any of aspects 2 to 6 above, may have a plurality of elastic deformation members arranged in the groove portion, and the plurality of elastic deformation members may be arranged discontinuously in the extension direction of the guide rail.

[0070] According to the configuration of the seventh aspect, the area where the stimulation device and the elastic deformation member come into contact with each other is reduced within the travel range of the stimulation device. This reduces the resistance generated between the stimulation device and the elastic deformation member. This allows the stimulation device to travel more smoothly.

[0071] A seat device according to an eighth aspect of the present disclosure is any one of the second to seventh aspects, wherein the elastically deforming member is an anisotropic member in the direction of elastic deformation.

[0072] According to the configuration of aspect 8, when the stimulation device is moving, the elastic deformation member can be easily elastically deformed by the pressing portion, and when the stimulation device is supporting a seated person, the elastic deformation member can be made difficult to elastically deform, thereby making it possible to reduce the deterioration of the support performance of the seat apparatus and to make the stimulation device move smoothly.

[0073] A seat device according to a ninth aspect of the present disclosure is in the eighth aspect above, wherein the elastic deformation member may have a structure that makes it easier to elastically deform in the width direction of the guide rail than in the thickness direction of the guide rail.

[0074] According to the configuration of aspect 9, the elastic deformation member is deformed in the width direction of the guide rail when pressed by the pressing portion of the stimulation device, thereby further reducing the interference caused by the elastic deformation member with the travel of the stimulation device.

[0075] In a seat device according to a tenth aspect of the present disclosure, in the above-mentioned ninth aspect, the elastically deforming member may have a honeycomb accordion structure that combines a honeycomb structure in which a plurality of polygonal pillars are arranged and an accordion structure that can be folded in the width direction of the guide rail. According to the configuration of the tenth aspect, the elastically deforming member can be made more susceptible to elastic deformation in the width direction of the guide rail than in the thickness direction of the guide rail.

[0076] In a seat device according to an eleventh aspect of the present disclosure, in the above-mentioned ninth aspect, the elastic deformation member may have a lattice structure in which a plurality of lattices are regularly arranged. According to the configuration of the ninth aspect, the elastic deformation member can be made to elastically deform more easily in the width direction of the guide rail than in the thickness direction of the guide rail.

[0077] A seat device according to a twelfth aspect of the present disclosure is any one of the first to eleventh aspects, wherein at least a portion of the groove is impregnated with a nonwoven fabric material. The configuration of the twelfth aspect can increase the strength of the groove, thereby reducing the risk of the groove being crushed in the thickness direction of the guide rail.

[0078] 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]

[0079] 1 Seat device 3 Seat back 4 Headrest 7 Seat pad (supporting member) 7A Support surface 10 Groove 13 Bottom part 20 Stimulation Device 22 Pressing section 30 guide rail 50 Elastically deformable member 60 Nonwoven materials

Claims

1. a support member for supporting a seated occupant; a stimulation device for providing stimulation to the seated occupant; a guide rail for guiding the travel of the stimulation device; The support member has a groove formed therein corresponding to the travel range of the stimulation device, An elastically deformable member capable of supporting a seated person is disposed in the groove. Seat device.

2. The stimulation device includes a pressing portion that presses and deforms the elastic deformation member. The seat device according to claim 1 .

3. the groove portion has a bottom surface portion facing in the same direction as the support surface of the support member, The guide rail is disposed on the bottom surface portion. The seat device according to claim 1 .

4. the groove portion has a bottom surface portion facing in the same direction as the support surface of the support member, The seat device according to claim 2 , wherein a gap is formed between the stimulation device and the bottom surface portion in a thickness direction of the guide rail.

5. The seat apparatus according to claim 1 , wherein the stimulation device is located closer to the guide rail than a support surface of the support member in a thickness direction of the guide rail.

6. A plurality of the elastic deformation members are arranged in the groove portion, The seat device according to claim 1 , wherein the plurality of elastic deformation members are arranged on both sides of the guide rail in the width direction of the guide rail.

7. A plurality of the elastic deformation members are arranged in the groove portion, The seat device according to claim 2 , wherein the plurality of elastic deformation members are arranged discontinuously in the extending direction of the guide rail.

8. The seat device according to claim 2 , wherein the elastically deforming member is an anisotropic member in the direction of elastic deformation.

9. The seat device according to claim 8 , wherein the elastically deforming member has a structure that makes it easier to elastically deform in a width direction of the guide rail than in a thickness direction of the guide rail.

10. 10. The seat device according to claim 9, wherein the elastic deformation member has a honeycomb accordion structure that combines a honeycomb structure in which a plurality of polygonal pillars are arranged and an accordion structure that can be folded in the width direction of the guide rail.

11. The seat device according to claim 9 , wherein the elastically deformable member has a lattice structure in which a plurality of lattices are regularly arranged.

12. The seat device according to claim 1 , wherein at least a portion of the groove is impregnated with a nonwoven material.

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