Vehicle seat

Abstract

To provide a vehicle seat capable of transmitting a function of a functional member attached to the seat to a seated person.SOLUTION: The vehicle seat S includes the functional member 50 and the seat member 2 having the seating surface 2a and the back surface 2a located on the side opposite to the seating surface 2b, the seat member 2 includes the reception section 40 provided on the back surface 2b and to which the functional member 50 is detachably attached, and the function transmission section 60 attached to the reception section 40 and configured to transmit the functions of the functional member 50, and the function transmission section 60 extends from the reception section 40 to the seating surface 2a.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a vehicle seat, and more particularly to a vehicle seat provided with a functional member. [Background technology]

[0002] Patent Document 1 discloses a vehicle seat in which a base portion is provided on the surface of the seat back, and a visual playback device (functional component) such as a tablet computer is removably attached by a holder that fits the base portion. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2014 / 001155 Summary of the Invention [Problem to be solved by the invention]

[0004] In Patent Document 1, the visual playback device is removably attached using a holder, but it is desirable for vehicle seats to be able to be fitted with functional components other than those that provide images, such as components with temperature adjustment functions, notification functions, ventilation functions, detection functions, etc. However, there is a problem in that it is difficult to convey the function of the functional member to the seat occupant simply by attaching the functional member to the fixing means provided on the back side of the seat.

[0005] The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle seat that can transmit the function of a functional member attached to a seat member to a seated occupant. [Means for solving the problem]

[0006] The above problem is solved by the vehicle seat of the present invention, which comprises a seat member having a functional member, a seating surface, and a back surface located on the opposite side of the seating surface, wherein the seat member has a receiving portion provided on the back surface to which the functional member is detachably attached, and a function transmission portion attached to the receiving portion and transmitting the function of the functional member, and the function transmission portion extends from the receiving portion to the seating surface. According to the above configuration, a functional transmission portion extending from the receiving portion to the seating surface is provided in the seat member, thereby making it possible to provide a vehicle seat that can transmit the function of the functional member attached to the seat member to the seated occupant.

[0007] In addition, in the above configuration, the seat member may have a pad between the seating surface and the back surface portion, and the function transmission portion may extend from the receiving portion to the seating surface through a through hole formed in the pad. By forming a through hole in the pad and extending the function transmission part through the through hole to the seating surface, the function can be transmitted to the seated person via the shortest route.

[0008] Furthermore, in the above configuration, the seat member has a surface covering the pad, the pad has a hanging groove formed on the side of the seating surface, the hanging groove has a fixing portion for fixing the hanging surface, and the through hole through which the function transmission portion passes is preferably positioned at a position avoiding the fixing portion. By arranging the through-holes at positions that avoid the fixing parts, the function can be efficiently transmitted by the function transmitting parts, and the function can be transmitted without affecting the hanging of the skin.

[0009] In the above configuration, it is preferable that a plurality of the fixing portions are provided in the hanging groove, and the through hole through which the function transmitting portion passes is formed between adjacent fixing portions. By forming the through holes between the fixing parts, the function can be transmitted without affecting the hanging of the skin.

[0010] In the above functional configuration, the function transmission portion may have a planar portion on the surface of the pad facing the seating surface, the planar portion being arranged to extend in the seat width direction with the through hole as the center. By having a planar portion that extends in the seat width direction, the function can be transmitted to the seat occupant over a wider area.

[0011] In the upper functional configuration, an air cell may be provided on the seating surface of the seat member, and the planar portion of the function transmission portion may be disposed so as to overlap the air cell. By arranging the planar portion so that it overlaps with the air cell, when the air cell expands, the planar portion of the function transmission part comes close to the occupant, making it possible to efficiently transmit the function to the occupant.

[0012] In addition, in the above functional configuration, the sheet member has a frame and a holding bracket fixed to the frame and holding the receiving portion, and an insulating portion is provided on the outer periphery of the receiving portion, and the insulating portion is fixed by the holding bracket. By providing a heat insulating portion on the outer periphery of the receiving portion, the function (heat) is prevented from escaping to the outside before it is transmitted to the seated person, making it possible to transmit the function to the seated person efficiently.

[0013] In the above functional configuration, the function transmitting portion may be formed of a film-like material containing fibrous carbon. By forming the function transmission part from a film-like material containing fibrous carbon, the function transmission part can be made to have both high flexibility and high conductivity, and can efficiently transmit functions to the seated person. [Effects of the Invention]

[0014] According to the vehicle seat of the present invention, a functional transmission portion extending from the receiving portion to the seating surface is provided in the seat member, thereby making it possible to provide a vehicle seat that can transmit the function of the functional member attached to the seat member to the seated occupant. Furthermore, according to the present invention, by forming a through hole in the pad and extending the function transmitting portion through the through hole to the seating surface, it is possible to transmit the function to the seated person via the shortest route. Furthermore, according to the present invention, the through-holes are positioned to avoid the fixing parts, so that the function can be efficiently transmitted by the function transmitting part, and the function can be transmitted without affecting the hanging of the skin. Furthermore, according to the present invention, the through holes are formed between the fixing portions, so that the function can be transmitted without affecting the hanging of the skin. Furthermore, according to the present invention, by having a planar portion that extends in the seat width direction, it is possible to transmit the function to the seated occupant over a wider range. Furthermore, according to the present invention, the planar portion is positioned so as to overlap with the air cell, and when the air cell expands, the planar portion of the function transmission part comes close to the occupant, making it possible to efficiently transmit the function to the occupant. In addition, according to the present invention, by providing an insulating portion on the outer periphery of the receiving portion, the function (heat) is prevented from escaping to the outside before the function is transmitted to the seated person, making it possible to efficiently transmit the function to the seated person. Furthermore, according to the present invention, the function transmission part is formed from a film-like material containing fibrous carbon, which allows the function transmission part to have both high flexibility and high conductivity, and can efficiently transmit functions to the seated person. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a perspective view of a vehicle seat according to an embodiment of the present invention, seen obliquely from the front. [Figure 2] FIG. 2 is a perspective view of the vehicle seat as seen obliquely from the rear. [Figure 3] FIG. 2 is a perspective view showing a frame of the vehicle seat. [Figure 4] FIG. 10 is a front view of the seat back pad. [Figure 5] FIG. 5 is a cross-sectional view taken along line VV in FIG. [Figure 6]FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. [Figure 7A] FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. [Figure 7B] FIG. 7B is an enlarged view of a part of FIG. 7A, showing a state in which a functional member having an illumination device is attached. [Figure 8A] FIG. [Figure 8B] FIG. [Figure 8C] FIG. 10 is a side view showing another example of the functional member. [Figure 8D] FIG. 2 is a side view showing a functional member having an air blower. [Figure 8E] FIG. 2 is a side view showing a functional component having a vibration device. [Figure 8F] FIG. 2 is a side view showing a functional member having a lighting device. [Figure 9] FIG. 10 is a cross-sectional view showing another example of the function transmission part. [Figure 10] FIG. 10 is a perspective view showing another example of a back frame to which a receiving portion is attached. DETAILED DESCRIPTION OF THE INVENTION

[0016] The configuration of a vehicle seat according to one embodiment of the present invention (the present embodiment) will be described below with reference to the drawings. However, the embodiment described below is an example for facilitating understanding of the present invention and is not intended to limit the present invention. In other words, the present invention may be modified or improved without departing from the spirit thereof, and of course, the present invention also includes equivalents thereof.

[0017] In the following, a vehicle seat S mounted on a vehicle will be taken as an example of a vehicle seat, and an example of the configuration thereof will be described. In the following description, the "seat front-rear direction" refers to the front-rear direction of the vehicle seat S, which is the direction that coincides with the traveling direction when the vehicle is traveling. The "seat width direction" refers to the width direction of the vehicle seat S, which is the direction that coincides with the left-right direction as seen by an occupant seated in the vehicle seat S. The "seat up-down direction" refers to the up-down direction of the vehicle seat S, which is the direction that coincides with the vertical direction when the vehicle is traveling on a horizontal plane. The outer and inner sides are defined based on the occupant seated in the vehicle seat S. That is, the direction toward the center of the seat width direction is defined as the inner side, and the direction away from the center is defined as the outer side.

[0018] As shown in Fig. 1, the vehicle seat S is a seat placed on the floor of the vehicle and in which a vehicle occupant sits. In this embodiment, the vehicle seat S is a front seat located at the front of the vehicle, but it may also be used as a rear seat located at the rear. The vehicle seat S can also be used as a middle seat in the second row or a third seat in the third row in a vehicle with three rows of seats in the longitudinal direction of the vehicle.

[0019] Furthermore, the shape, position, posture, etc. of each part of the vehicle seat S described below will be described assuming that the vehicle seat S is in a normal state, unless otherwise specified.

[0020] <Vehicle seat S> The basic configuration of a vehicle seat S according to this embodiment will be outlined with reference to Fig. 1 to Fig. 3. Fig. 1 is a perspective view of the vehicle seat S according to this embodiment as seen obliquely from the front, and Fig. 2 is a perspective view of the vehicle seat S as seen obliquely from the rear. Fig. 3 is a perspective view showing a seat frame F of the vehicle seat S. Note that, for convenience of illustration, Figs. 1 and 2 show a portion of the vehicle seat S with the cover T removed and the pad P exposed.

[0021] As shown in FIGS. 1 and 2, a vehicle seat S includes a seat cushion 1, a seat back 2, a headrest 3, and a reclining device 4. The seat cushion 1 and the seat back 2 are connected to sandwich the reclining device 4. The seat back 2 can be rotated relative to the seat cushion 1 around a rotation axis 4a by the reclining device 4, and the tilt angle can be adjusted. The seat cushion 1 and the seat back 2 correspond to seat members. The headrest 3 has a headrest pillar 31 extending downward and connected to the upper end of the seat back 2.

[0022] The seat cushion 1 has a seating surface 1a that receives the weight of a seated occupant and a bottom surface 1b located on the opposite side of the seating surface 1a. The seat back 2 has a seating surface 2a that receives the weight of a seated occupant and a back surface 2b located on the opposite side of the seating surface 2a. The bottom surface 1b of the seat cushion 1 and the back surface 2b of the seat back 2 correspond to the back surface.

[0023] 3, a slide device 5 that slides the vehicle seat S in the front-to-rear direction is provided below the vehicle seat S. The slide device 5 allows the vehicle seat S to be attached to the vehicle floor in a state where it can slide in the front-to-rear direction. The slide device 5 is composed of a lower rail 5a fixed on the floor and an upper rail 5b that can slide relative to the lower rail 5a.

[0024] <Seat frame F> 3, a seat frame F that forms the framework of the vehicle seat S is provided inside the vehicle seat S. The seat frame F includes a cushion frame 10, a back frame 20, and a headrest frame 30.

[0025] 3, the cushion frame 10 is formed in a rectangular frame shape when viewed from above the vehicle seat S, and is provided with a pair of cushion side frames 11, 11 on the left and right. The pair of cushion side frames 11, 11 are basically members configured symmetrically on the left and right, and are provided extending in the front-to-rear direction of the seat.

[0026] The cushion frame 10 also has a front frame 12 that connects the pair of cushion side frames 11, 11 at the front side, and a rear frame 13 that connects them at the rear side. The cushion frame 10 is also provided with a pressure-receiving member 15 for the cushion that is arranged to bridge between the front frame 12 and the rear frame 13. The pressure-receiving member 15 is made of an S-spring, and can support the buttocks of a seated person from below.

[0027] 3, the back frame 20 is formed in a frame shape as a whole and includes a pair of back side frames 21, 21 arranged on the left and right, an upper frame 22, and a lower frame 23. The upper frame 22 is provided with a pair of headrest holders 26 into which headrest pillars 31 of the headrest 3 are inserted. Additionally, a connecting frame 24 is provided on the upper frame 22, connecting the vertically extending portions of the upper frame 22. Additionally, a back pressure-receiving member 25 is provided between the connecting frame 24 and the lower frame 23. The back pressure-receiving member 25 makes it possible to support the back of the seated occupant from behind.

[0028] An airbag module 34 is attached to the backside frames 21, 21. The airbag module 34 protects the occupant of the vehicle seat S from a collision with an occupant sitting next to them, or from a collision with the vehicle door or the outside of the vehicle. The airbag module 34 is composed of an airbag 35, a case 36 that houses the airbag 35, and an inflator (not shown) that supplies gas to the airbag 35 (see FIG. 5).

[0029] The vehicle seat S is provided with a pad P for a seat cushion 1 attached to a cushion frame 10 and a pad P for a seat back 2 attached to a back frame 20. The pad P for the seat cushion 1 and the pad P for the seat back 2 are each covered with a cover T. The pad P for the seat cushion and the pad P for the seat back 2 are made of a urethane base material formed by foam molding using, for example, a urethane foam material. The cover T is made of, for example, cloth, synthetic leather, genuine leather, or the like. The headrest 3 is composed of a headrest frame 30 serving as a skeleton, a headrest pad P attached to the headrest frame 30, and a skin T covering the pad P.

[0030] The seat back 2 will be described with reference to Figures 4 to 6. Figure 4 is a view of the pad P of the seat back 2 as seen from the front, Figure 5 is a cross-sectional view taken along line VV in Figure 4, and Figure 6 is a cross-sectional view taken along line VI-VI in Figure 4. Although Figures 5 and 6 show the configuration of the left side of the seat back 2, the right side of the seat back 2 has a similar configuration.

[0031] The pad P of the seat back 2 is formed with hanging grooves 71 for hanging the upholstery T covering the pad P. Specifically, as shown in FIG. 4, two vertical hanging grooves 71a extending in the up-down direction and a horizontal hanging groove 71b extending between the vertical hanging grooves 71a are formed. A plurality of hanging clips 72 are attached to the hanging grooves 71 to fix the hung-up upholstery T. By attaching the ends of hanging cords 73 extending from the back surface of the upholstery T to the hanging clips 72, the upholstery T can be hung and fixed on the pad P (see FIG. 6). The hanging clips 72 correspond to fixing parts. Although not shown, the pad P of the seat cushion 1 is also formed with a hanging groove 71 for hanging the cover T covering the pad P, similar to the pad P of the seat back 2.

[0032] As shown in FIGS. 5 and 6, the seat back 2 has a plurality of air cells 32 provided on the seating surface 2a. The air cells 32 are provided on the seating surface 2a of the support portion 2c that supports the back of the seat occupant and on the seating surface 2a of the bank portion 2d of the seat back 2. Air cells 32 are also provided on the back surface portion 2b in front of the pressure-receiving member 25. Each air cell 32 is composed of two air bags and can be inflated or deflated. By inflating the air cells 32 and pressing against a part of the seat occupant's body, the occupant's lower back, back, etc. can be massaged. An air cell pipe 33 is connected to the air cells 32, and air can be supplied from a pump (not shown) provided in the vehicle seat S. The air cells 32 may also be provided on the seating surface 1a of the seat cushion 1.

[0033] The receiving portion 40, functional member 50, and flexible heat conductor 60 provided in the vehicle seat S will be described with reference to Fig. 5 to Fig. 9. Fig. 7A is a cross-sectional view taken along line VII-VII in Fig. 1, and Fig. 7B is an enlarged view of a portion of Fig. 7A, showing a state in which a functional member 50D having an illumination device 80 is attached. Figs. 8A to 8F are views showing functional members 50 to 50D. Fig. 9 is a cross-sectional view showing another example of a function transmission portion.

[0034] The vehicle seat S of this embodiment is equipped with a functional member 50. As described above, the vehicle seat S is equipped with a seat back 2 having a seating surface 2a and a back portion 2b located on the opposite side of the seating surface 2a. The seat back 2 has a receiving portion 40 on the back portion 2b of the seat back 2 to which the functional member 50 is detachably attached. Further, the seat back 2 is provided with a flexible heat conductor 60 attached to the receiving portion 40 inside the seat back 2 and transmitting the function of the functional member 50. The flexible heat conductor 60 corresponds to a function transmitting portion. Although the detailed configuration will be described later, in this embodiment, the functional member 50 is provided with a heating / cooling device 53 therein that has a function of adjusting temperature. The device provided in the functional member 50 is not limited to the heating / cooling device 53, and a vibration device 54 that has a vibration function may also be provided. Furthermore, the functional member 50 may be provided with both the heating / cooling device 53 and the vibration device 54. The functional member 50 may further be provided with an air blower 55 and a lighting device 80. The functional member 50 may also be provided with a notification device that issues a warning or the like by vibration or sound, or with a biosensor that obtains the biometric information of the seated occupant.

[0035] <Receptor 40> The receiving portion 40 is a member configured to allow the functional member 50 to be detachably attached, and in this embodiment, as shown in Figures 2 and 7A, a plurality of receiving portions 40 are provided on the back portion 2b of the vehicle seat S. Specifically, one receiving portion 40 is provided on each of the upper, left and right side portions, and lower portion of the back portion 2b. The receiving portions 40 are metal containers formed to store the functional members 50. Each receiving portion 40 has the same shape and configuration, and the functional members 50 can be replaced depending on the purpose. The receiving portions 40 may be made of resin. Considering the conductivity of heat and vibrations generated by the functional members 50, it is desirable that the receiving portions 40 be made of metal.

[0036] Each of the receiving portions 40 is fixed to the back frame 20 by a retaining bracket 45. Specifically, as shown in Fig. 3, the receiving portion 40 arranged at the upper part of the back portion 2b is fixed to the upper frame 22, and the receiving portion 40 arranged at the lower part of the back portion 2b is fixed to the lower frame 23. Furthermore, as shown in Figs. 5 and 6, the receiving portions 40 arranged at the left and right sides of the back portion 2b are fixed to the back side frames 21, 21 by the retaining brackets 45. The receiving portions 40 may be fixed directly to the back frame 20 by welding or the like.

[0037] The configuration of each receiving section 40 will be described. An opening 41 for inserting the functional member 50 is formed in the upper part of the receiving section 40. Also, a contact 43 for connecting with a contact 57 of the functional member 50 is arranged in the upper part of the receiving section 40. Also, the receiving section 40 may be provided with a locking mechanism for fixing the functional member 50.

[0038] The inner wall of the receiving portion 40 is formed to match the outer shape of the functional member 50 so as to receive the functional member 50. As will be described in detail later, when the receiving portion 51 of the functional member 50 is formed in a truncated cone shape as shown in Fig. 8B, the inner wall of the receiving portion 40 is also formed in a truncated cone shape. Furthermore, when a screw thread is formed on the receiving portion 51, a screw thread is also formed on the inner wall of the receiving portion 40 to match the screw thread.

[0039] A heat exhaust port 42 is provided at the bottom of the receiving portion 40, aligned with the position of the heat exhaust port 58 of the functional member 50. The heat exhausted from the heat exhaust port 42 of the functional member 50 passes through the heat exhaust port 42 of the receiving portion 40 and is ultimately discharged from a heat exhaust port (not shown) provided below the vehicle seat S. The position of the heat exhaust port 42 is not limited to the bottom of the receiving portion 40, and may be provided on the inner wall of the receiving portion 40.

[0040] 2 and 7A, the back surface portion 2b of the seat back 2 on which the receiving portion 40 is provided is covered with a skin T, and the receiving portion 40 is also covered with the skin T. In addition, the back surface portion 2b is formed with an insertion port for inserting the functional member 50 into the receiving portion 40. The seat occupant can attach the functional member 50 to the receiving portion 40 as needed. Furthermore, when the functional member 50 is not used, a blank functional member 50 with no function may be attached to the receiving portion 40.

[0041] <Positional Relationship Between Receiving Portion 40 and Other Members> The positional relationship between the receiving portion 40 provided on the side of the back portion 2b and other members, such as the airbag module 34, will be described with reference to FIGS. As described above, the airbag module 34 is attached to each of the back side frames 21, 21 of the seat back 2 by the fastening members 37. The receiving portion 40 is disposed so that the front end 40a of the receiving portion 40 is located rearward of the front end 34a of the airbag module 34. The receiving portion 40 is also disposed so that the front end 40a of the receiving portion 40 is located rearward of the fastening members 37 that attach the airbag module 34.

[0042] The receiving portion 40 is disposed so that the front end 40a of the receiving portion 40 is located rearward of the rear end 34b of the airbag module 34. Note that the front end 40a of the receiving portion 40 may be disposed forward of the rear end 34b of the airbag module 34 and rearward of the front end 34a of the airbag module 34. The size of the receiving portion 40 in the sheet width direction, in other words, the diameter D3 of the receiving portion 40, is larger than the size D4 of the through-hole 74 formed in the pad P through which the flexible heat conductor 60 passes in the sheet width direction.

[0043] Furthermore, when viewed from the front of the seat, the receiving portion 40 is arranged so that a portion of the receiving portion 40 overlaps with the air cells 32 provided in the bank portion 2d of the seat back 2. In other words, when viewed from the front of the seat, the receiving portion 40 is arranged so that a portion of the receiving portion 40 is in the same position as the air cells 32 of the bank portion 2d of the seat back 2 in the seat width direction. As shown in FIGS. 5 and 6, the receiving portion 40 is disposed so that its front end 40a is located forward of the front end of the pressure-receiving member 25.

[0044] <Functional Components 50> The functional member 50 is a device having a predetermined function, and in this embodiment, the functional member 50 is a temperature adjusting device having a function of adjusting temperature. 8A and 8B, functional member 50 is composed of heating / cooling device 53 having heat generation and cooling functions, storage section 51 for storing heating / cooling device 53, and lid section 52. Storage section 51 is formed with opening 59 for inserting and removing heating / cooling device 53, and lid section 52 is configured to close opening 59. In addition, a heat exhaust port 58 for exhausting heat is formed at the bottom of storage section 51.

[0045] The heating / cooling device 53 is composed of a heater and a Peltier element. To heat the functional member 50, an electric current is passed through the heater to generate heat. To cool the functional member 50, an electric current is passed through the Peltier element to cool the surface of the housing portion 51.

[0046] The outer shape of the storage section 51 is formed in a truncated cone shape so as to fit the inner wall of the receiving section 40. In other words, the sides of the storage section 51 are formed in a tapered shape, and the diameter D1 of the opening 59 through which the heating / cooling device 53 is inserted and removed is formed to be larger than the diameter D2 of the bottom of the storage section 51. By forming the storage section 51 of the functional member 50 in a truncated cone shape, it becomes easier to insert it into and remove it from the receiving section 40.

[0047] After inserting the functional member 50 into the receiving portion 40, the functional member 50 can be locked in the receiving portion 40 by rotating it, for example, by 90 degrees. To remove the functional member 50 from the receiving portion 40, the functional member 50 is rotated 90 degrees in the opposite direction to when it was locked to release the lock.

[0048] The lid portion 52 is provided with a knob portion 52a that is used when removing it from the storage portion 51. The user can lock or unlock the functional member 50 by, for example, gripping the knob 52a and rotating the functional member 50. Additionally, around the opening of the housing part 51, a contact 57 is provided which connects with the contact 43 provided on the receiving part 40 when the housing part 51 is attached to the receiving part 40. The contact 57 is connected to the heating / cooling device 53, and is configured to receive power supply, control signals, etc. through the contact 57.

[0049] The appearance of the functional member 50 is not limited to this. For example, as in the functional member 50A shown in FIG. 8C, threads may be formed on the outer surface of the receiving portion 51A. In this case, threads corresponding to the threads of the receiving portion 51A are formed on the inner wall of the receiving portion 40 that receives the functional member 50A. By forming threads on the functional member 50A in this manner, the functional member 50 can be more firmly fixed to the receiving portion 40. In the case of the functional member 50A, it is locked into the receiving portion 40 once insertion is complete. High stability after insertion and a larger contact area between the functional member 50A and the receiving portion 40 can improve the function provided by the functional member 50, such as heat transfer efficiency. Furthermore, if a vibrating device 54 is mounted on the functional member 50, the vibration transfer efficiency can be improved.

[0050] 8D, functional member 50 may have a configuration in which air blower 55 is provided on the top of heating / cooling device 53 and air outlet 56 is formed in lid 52B. Air whose temperature has been adjusted by heating / cooling device 53 is sent by air blower 55 to air outlet 56, and hot or cold air can be sent in a predetermined direction. 7A, the functional member 50B having the air blower 55 may be attached to a receiving portion 40 provided on the upper portion of the seat back 2. The functional member 50B is configured so that a lid portion 52B having an air outlet 56 protrudes from the receiving portion 40 when attached to the receiving portion 40.

[0051] If the air outlet 56 of the functional member 50B is directed toward the seat occupant, hot or cold air can be sent to the seat occupant. Also, if the air outlet 56 is directed toward the rear of the seat, hot or cold air can be sent to the rear seat occupant. Since the air outlet direction can be selected, efficient heating and cooling can be achieved. Note that when hot or cold air is to be sent to the rear seat occupant, the functional member 50B may be attached to a receiving portion 40 provided on the side or bottom of the back portion 2b.

[0052] 8E, the functional member 50 may be configured such that a heating / cooling device 53 and a vibration device 54 are provided in the housing portion 51. By providing the heating / cooling device 53 and the vibration device 54, the functional member 50C can provide not only heat but also vibration.

[0053] 8F, the functional member 50 may be configured such that a lighting device 80 is provided in the housing portion 51, as in the functional member 50D shown in FIG. 8F. In this case, the lid portion 52D may be formed of a transparent or translucent material, and a light-emitting portion 81 such as a light bulb or an LED may be disposed in the lid portion 52D. When the light-emitting portion 81 of the lighting device 80 emits light, it can illuminate the area around the functional member 50, making it brighter.

[0054] The functional member 50D having the lighting device 80 may be attached to a receiving portion 40 provided in the upper part of the seat back 2, as shown in FIG. 7B, for example. When the functional member 50D is attached to the receiving portion 40, a lid portion 52D containing a light-emitting portion 81 protrudes from the receiving portion 40. By attaching the functional member 50D in this manner, for example, a passenger in the rear seat can use the functional member 50D as a reading light. When the functional member 50D is attached to the receiving portion 40 provided in the lower part of the seat back 2, it can be used as a light to illuminate the feet of a passenger in the rear seat.

[0055] <Flexible heat conductor 60> 1 and 5, the flexible heat conductor 60 that transmits the function of the functional member 50 will be described. The flexible heat conductor 60 is a member that transmits heat generated from the functional member 50 inserted into the receiving portion 40 from the receiving portion 40 to the seating surface 2a. The flexible heat conductor 60 corresponds to a function transmission portion.

[0056] In the vehicle seat S of this embodiment, the flexible heat conductor 60 is arranged to cover the outer periphery of the receiving portion 40, and the flexible heat conductor 60 is arranged to extend from the receiving portion 40 to the seating surface 2a of the seat back 2. The flexible heat conductor 60 extending from the receiving portion 40 to the seating surface 2a can transmit, for example, heat generated by the functional member 50 attached to the receiving portion 40 to the seating surface 2a. In other words, the function of the functional member 50 attached to the seat back 2 can be transmitted to the seat occupant.

[0057] 5, a pad P is provided in the seat back 2 between the seating surface 2a and the back surface 2b of the seat back 2, and a through-hole 74 is formed in the pad P of the seat back 2. The flexible heat conductor 60 passes through the through-hole 74 and extends from the receiving portion 40 to the seating surface 2a. By passing the flexible heat conductor 60 through the through hole 74, it is possible to reach the seating surface 2a from the receiving portion 40 via the shortest route, and the heat generated from the functional member 50 can be efficiently transferred to the seated person. The flexible heat conductor 60 may be arranged so as to wrap around the side of the seat back 2, so that the flexible heat conductor 60 extends from the receiving portion 40 to the seating surface 2a.

[0058] 4, the through-hole 74 for passing the flexible heat conductor 60 is formed in the hanging groove 71 of the pad P. As described above, a plurality of hanging clips 72 are arranged in the hanging groove 71, and the through-hole 74 is positioned to avoid the hanging clips 72. More specifically, as shown in FIG. 4, the through-hole 74 is formed between hanging clips 72 adjacent to each other in the vertical direction. By forming the through-holes 74 in this manner, the flexible heat conductor 60 can be placed without being obstructed by the hanging clips 72, and heat can be transferred efficiently. In addition, the influence of the skin T on the hanging can be suppressed.

[0059] The flexible heat conductor 60 also has a transfer portion 61 that connects to the receiving portion 40 and passes through the through-hole 74, and a planar portion 62 that is arranged on the seating surface side of the pad P and spreads in the seat width direction with the through-hole 74 as the center. As shown in Fig. 4, the planar portion 62 of the flexible heat conductor 60 spreads along the surface of the pad P, thereby allowing heat to be transferred to the seated occupant over a wider area. The planar portion 62 is formed to be approximately rectangular.

[0060] As described above, a plurality of air cells 32 are arranged on the seating surface 2a of the seat back 2. As shown in Figs. 4 and 5, the planar portion 62 of the flexible heat conductor 60 is arranged to overlap with the air cells 32 arranged on the seating surface 2a. By arranging the planar portion 62 so that it overlaps with the air cell 32, for example, by expanding the air cell 32, the planar portion 62 of the flexible heat conductor 60 comes close to the occupant, thereby efficiently transmitting heat, vibrations, etc. to the occupant.

[0061] The flexible heat conductor 60 may be made of a film-like material containing fibrous carbon, such as carbon nanofibers or carbon nanotubes. More specifically, the flexible heat conductor 60 may be made of a film-like composite material containing carbon nanofibers, carbon nanotubes, and polyrotaxane, a cyclic molecule. In such a composite material, relatively large carbon nanofibers are wrapped around small carbon nanotubes, and the carbon nanotubes are dispersed and connect the carbon nanofibers. Therefore, the flexible heat conductor 60 has the flexibility of rubber and the heat conductivity of metal. By using the flexible heat conductor 60 made of a material with high thermal conductivity and flexibility, heat and vibrations can be efficiently transferred to the seated person. The material of the flexible heat conductor 60 is not limited to that containing fibrous carbon, and a highly heat conductive sheet using flexible crystalline graphite or a relatively flexible metal film may also be used as the flexible heat conductor 60.

[0062] <Insulation section 63> The above-mentioned flexible heat conductor 60 is provided on the outer periphery of the receiving part 40. In addition, as shown in Figures 5 and 6, a heat insulating part 63 is arranged on the outside of the flexible heat conductor 60 arranged on the outer periphery of the receiving part 40. As the heat insulating part 63, for example, glass wool or hard urethane foam is used. By providing a heat insulating portion 63 on the outside of the flexible heat conductor 60, heat does not escape from the flexible heat conductor 60 to the outside, and the flexible heat conductor 60 can efficiently transmit the function of the functional member 50, i.e., heat and vibration, to the seated occupant.

[0063] <Vibration transmitter 64> A functional member 50C including a heating / cooling device 53 and a vibration device 54 shown in FIG. 8E may be attached to the receiving portion 40 to transmit heat and vibration to the seating surface 2a. In this case, for example, as shown in FIG. 9, as the functional transmission portion, not only a flexible heat conductor 60 but also a vibration transmission member 64 that transmits vibrations is arranged so as to extend from the receiving portion 40 to the seating surface 2a of the seat back 2. If the vibration transmission member 64 is a member whose hardness can be changed by applying heat or the like, it can transmit vibrations as needed. If vibrations are not to be transmitted, it is preferable to suppress a decrease in seating comfort by lowering the hardness of the vibration transmission member 64.

[0064] An example of a vibration transmitter 64 with variable hardness is a membrane member containing a polymer hydrogel that hardens instantly when heat is applied. Polymer hydrogels with variable hardness can be produced by synthesizing polyacrylic acid gel through polymer polymerization and immersing the resulting gel in a calcium acetate solution. Gels produced in this way have the property of remaining transparent and soft in a rubbery state at low temperatures, but changing into a glassy state at high temperatures. The vibration transmitter 64 containing the polymer hydrogel is preferably attached to the flexible heat conductor 60. Heat is applied to the vibration transmitter 64 by the flexible heat conductor 60, causing the vibration transmitter 64 to harden. In this state, by vibrating the vibrating device 54 of the functional member 50C, the vibration is transmitted to the seating surface 2a of the seat back 2. The vibration transmitter 64 is not limited to a film member containing polymer hydrogel, but may be, for example, a film member made of a hard metal.

[0065] <Vehicle seat SA> 1 to 8D are configured so that the functional member 50 can be easily attached and detached by the seat occupant, but the functional member 50 may be pre-installed by a dealer, etc. Also, the functional member 50 may be pre-installed at the time of assembly in a factory, etc. In this case, as in the back frame 20 of the vehicle seat SA shown in Fig. 10, the receiving portion 40 is attached so as to extend in the seat width direction, and an item that can be inserted from the seat width direction can be mounted. The functional member 50 can be attached, for example, by temporarily removing the cover T and backboard on the back surface portion 2b of the seat back 2, and then inserting the functional member 50 into the receiving portion 40 and attaching it semi-fixedly. This eliminates the need to provide an insertion port in the back surface portion 2b of the seat back 2 for inserting the functional member 50, thereby simplifying the back surface portion 2b of the seat back 2 of the vehicle seat SA and improving its appearance. In this case, since the functional member 50 can be firmly pressed and fixed by fastening, the contact area between the functional member 50 and the receiving portion 40 increases, and the efficiency of transmission of the desired effect (heat transfer, vibration, etc.) can be particularly improved. Also, loosening due to vibration, etc., is less likely to occur, and quality stability is improved.

[0066] <Method for manufacturing vehicle seat S> The vehicle seat S (vehicle seat) may be manufactured by a manufacturing method including preparing a functional member 50, a seat back 2 (seat member) having a seating surface 2a and a back portion 2b (rear portion) located opposite the seating surface 2a, a receiving portion 40 to which the functional member 50 is detachably attached, and a flexible heat conductor 60 (function transmission portion) that transmits the function of the functional member 50, attaching the receiving portion 40 to the back portion 2b of the seat back 2, and attaching the flexible heat conductor 60 to the receiving portion 40 and arranging the flexible heat conductor 60 so as to extend from the receiving portion 40 to the seating surface 2a.

[0067] <Seat cushion 1> In the above explanation, the present embodiment of the present invention has been described using the receiving portion 40 and functional member 50 provided on the seat back 2 of a vehicle seat S as an example, but the configuration of the present invention is not limited to the seat back 2 and can also be applied to the seat cushion 1. 1, a receiving portion 40 may be provided on the bottom surface 1b of the seat cushion 1, and a functional member 50 may be removably attached thereto. In this case, a through-hole may be provided in the pad P of the seat cushion 1, and the flexible heat conductor 60 may extend from the receiving portion 40 to the seating surface 1a of the seat cushion 1.

[0068] As an embodiment of the present invention, a vehicle seat S to be mounted in a vehicle has been described above, and an example of its configuration has been explained using the drawings. However, the present invention is not limited to seats mounted in ground-traveling vehicles with wheels such as automobiles and trains, and may also be applied to seats mounted in aircraft, ships, and other vehicles that move on non-ground surfaces, for example. [Explanation of symbols]

[0069] S, SA Vehicle seats (vehicle seats) Front seat frame P Pad T epidermis 1 Seat cushion (seat component) 1a Seating surface 1b Bottom part 2 Seat back (seat component) 2a Seating surface 2b Back part 2c Support part 2d Bank 3 Headrest 4 Reclining device 4a Rotation axis 5 Slide device 5a Lower rail 5b upper rail 10 Cushion Frame 11 Cushion side frame 12 Front Frame 13 Rear frame 15 Pressure-receiving member 20 Back Frame 21 Backside Frame 22 Upper frame 23 Lower frame 24 Connecting Frame 25 Pressure-receiving member 26 Headrest holder 30 Headrest frame 31 Headrest pillar 32 Air Cell 33 Air cell pipe 34 Airbag Module 34a front end 34b rear end 35 Airbag 36 cases 37 Fastening members 40 Receptor 40a front end 41 Opening 42 Heat exhaust port 43 Contacts 45 Retaining bracket 50, 50A, 50B, 50C, 50D Functional materials 51 Storage unit 52 Lid 52a Knob 53 Heating and cooling equipment 54 Vibration device 55 Blower 56 Ventilation vent 57 Contacts 58 Heat exhaust port 59 Opening 60 Flexible heat conductor (functional transmission part) 61 Transmission part 62 Planar part 63 Insulation section 64 Vibration transmitter (functional transmission part) 71 Hanging groove 71a Vertical hanging groove 71b Horizontal hanging groove 72 Hanging clip (fixed part) 73 Hanging cord 74 Through Hole 80 Lighting equipment 81 Light-emitting part

Claims

1. A functional member; a seat member having a seating surface and a back surface located on the opposite side of the seating surface; The sheet member is a receiving portion provided on the rear surface portion, to which the functional member is detachably attached; a function transmitting portion attached to the receiving portion and transmitting the function of the functional member; The vehicle seat, wherein the functional transmission portion extends from the receiving portion to the seating surface.

2. The seat member has a pad between the seating surface and the back surface, 2. The vehicle seat according to claim 1, wherein the function transmitting portion extends from the receiving portion to the seating surface through a through hole formed in the pad.

3. the sheet member has a surface covering the pad, The pad has a recess formed on the seating surface side, The hanging groove is provided with a fixing portion for fixing the skin to be hung, The vehicle seat according to claim 2, wherein the through-hole through which the function transmitting part passes is disposed at a position that avoids the fixing part.

4. The fixing portion is provided in a plurality of parts in the hanging groove, The vehicle seat according to claim 3, wherein the through-hole through which the function transmitting portion passes is formed between adjacent ones of the fixing portions.

5. The vehicle seat according to claim 2, wherein the functional transmission portion has a planar portion on the seating surface side of the pad, the planar portion being arranged to extend in the seat width direction with the through hole as a center.

6. The seating surface of the seat member is provided with an air cell, The vehicle seat according to claim 5, wherein the planar portion of the function transfer portion is disposed so as to overlap the air cell.

7. the sheet member has a frame and a holding bracket fixed to the frame to hold the receiving portion; a heat insulating portion provided outside the function transmitting portion arranged on the outer periphery of the receiving portion, 2. The vehicle seat according to claim 1, wherein the receiving portion is fixed by the retaining bracket with the heat insulating portion sandwiched therebetween.

8. 3. The vehicle seat according to claim 2, wherein the function transmitting portion is formed of a film-like material containing fibrous carbon.

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