Vehicle seat

Abstract

Provided is a vehicle seat in which a speaker can be easily attached to a headrest. A vehicle seat is provided with: a headrest (3); and left and right speakers (5) provided inside the headrest (3). The headrest (3) is provided with a speaker assembly (70) for assembling the speaker (5), the speaker assembly (70) being provided inside the headrest (3). The speaker assembly (70) is provided with: left and right speaker holding sections (80) which are provided on the left and right side portions of the headrest (3) and which hold the left and right speakers (5) in a state in which the speakers (5) are exposed to the front side of the seat; and a connecting part (90) which connects the left and right speaker holding parts (80) and is integrally formed with the left and right speaker holding parts (80).

Description

Technical Field

[0001] The present invention relates to a vehicle seat, and in particular to a vehicle seat comprising a headrest and a speaker arranged inside the headrest. Background Art

[0002] Conventionally, there is known a vehicle seat in which a speaker (audio device) is mounted inside a headrest.

[0003] For example, Patent Document 1 discloses a headrest including left and right speakers and a speaker assembly for assembling the left and right speakers.

[0004] The speaker assembly includes left and right speaker holding parts (sound boxes) for holding the left and right speakers so that they are exposed to the front side of the seat respectively, and a connecting part (connecting plate) for connecting the left and right speaker holding parts. The left and right speaker holding parts are assembled to the connecting part by assembly bolts. In addition, the speaker assembly is mounted on the headrest (headrest pillar) via the mounting plate.

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent Document 1: Japanese Patent Publication No. 2017-525456 Summary of the invention

[0008] Problems to be solved by the invention

[0009] In the headrest equipped with a speaker as in Patent Document 1, since the structure of the headrest becomes complicated, it is required to assemble the speaker and the speaker assembly to the headrest (headrest support) more easily. In addition, it is required to make the structure of the speaker assembly simpler.

[0010] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a vehicle seat in which a speaker can be assembled to a headrest more easily than before.

[0011] Another object of the present invention is to provide a vehicle seat in which the structure of a speaker assembly for assembling a speaker is simpler than that of a conventional vehicle seat.

[0012] Technical means of solving problems

[0013] The problem is solved by the following manner, that is, the vehicle seat according to the present invention includes: a headrest; and left and right speakers, which are arranged inside the headrest, and the vehicle seat includes a speaker assembly, which is arranged inside the headrest and is used to assemble the speakers, and the speaker assembly has: left and right speaker holding parts, which are arranged on the left and right side parts of the headrest and hold the left and right speakers respectively; and a connecting part, which connects the left and right speaker holding parts and is formed integrally with the left and right speaker holding parts.

[0014] According to the above configuration, it is possible to realize a vehicle seat in which a speaker can be assembled to a headrest more easily than before.

[0015] If described in detail, the speaker assembly has left and right speaker holding parts, and a connecting part that connects the left and right speaker holding parts and is formed integrally with the speaker holding parts. Therefore, there is no need to assemble bolts or assembling plates as in the past, so that the structure of the speaker assembly can be made simpler than before. In addition, the number of parts of the speaker assembly can be reduced. That is, the speaker can be assembled to the headrest more easily than before.

[0016] In this case, the speaker holding portion may include a housing recess for housing the speaker, and the speaker may be housed in the housing recess from the front-rear direction of the seat and held in a state of being exposed toward the front side of the seat.

[0017] According to the above configuration, the speaker can be housed in the speaker holding portion (housing recess) with a simple structure in a state where the speaker is exposed toward the front side of the seat.

[0018] Furthermore, as described above, the speaker is housed in the housing recess, whereby, for example, the speaker can be suitably protected from external impact.

[0019] In this case, the speaker may be housed so as to penetrate through a housing bottom surface of the housing recess and be held in a state of being exposed from the speaker holding portion toward the seat front side and the seat rear side.

[0020] According to the structure, the speaker can be appropriately held and accommodated in the speaker holding portion (accommodation recess). In addition, the assembled state of the speaker can be visually confirmed from the front of the seat and the rear of the seat.

[0021] At this time, the vehicle seat may also include a wiring harness connected to the speaker, and the speaker holding portion may include: the accommodating recess, which is arranged in the front position of the speaker holding portion and accommodates the speaker; the rear accommodating recess, which is arranged in the rear position of the speaker holding portion and accommodates the wiring harness; and a cover portion, which covers the rear accommodating recess from the rear of the seat, and the speaker passes through the accommodating bottom surface of the accommodating recess and the accommodating bottom surface of the rear accommodating recess in the front-rear direction of the seat, and is maintained in a state of being exposed from the speaker holding portion to the front side and the rear side of the seat.

[0022] According to the above configuration, the speaker can be accommodated from the front of the seat with respect to the speaker holding portion, and the wire harness can be accommodated from the rear of the seat.

[0023] In addition, according to the above structure, the rear storage recess for storing the wire harness is covered by the cover, so that foreign matter can be prevented from accidentally entering the rear storage recess. That is, the speaker or the wire harness can be appropriately protected.

[0024] At this time, the headrest may further include: a pillar for supporting the main body of the headrest; and a rear cover assembled to the pillar and configured to cover the pillar and the speaker assembly from the rear of the seat, the rear cover having: a pillar hanging portion for hanging on the pillar; and left and right mounting portions for mounting the speaker assembly, the pillar hanging portion being configured between the left and right mounting portions in the seat width direction.

[0025] Furthermore, the support hook portion may be arranged at a position overlapping with the left and right mounting portions in the up-down direction, and the speaker may be arranged between an upper end portion of the mounting portion and a lower end portion of the connecting portion in the up-down direction.

[0026] According to the above configuration, the rear cover, the speaker assembly, and the speaker can be firmly attached to the pillar (headrest pillar) serving as the core material of the headrest.

[0027] In this case, the headrest may include a pillar supporting a main body of the headrest, and the speaker assembly may cover the pillar from both sides in the seat width direction via the left and right speaker holding portions, and may be arranged to cover the pillar from the seat rear side via the connecting portion.

[0028] According to the above structure, the speaker assembly can be more firmly attached to the pillar of the headrest.

[0029] In addition, as described above, the speaker assembly is arranged to surround the pillar from both sides in the seat width direction and the seat rear side. This can prevent the speaker assembly and the speaker from swinging (moving) in the left-right direction and the front-back direction relative to the headrest (headrest pillar) during driving of the vehicle.

[0030] At this time, the headrest may further include: a pillar supporting the main body of the headrest; and a front cover assembled to the pillar and configured to cover the pillar and the speaker assembly from the front of the seat, and the front end portion of the speaker holding portion protrudes toward the front cover and is configured to abut or be able to abut against the rear surface of the front cover.

[0031] In addition, the speaker holding portion may have a protruding wall portion protruding from the outer edge portion of the main body of the speaker holding portion toward the front of the seat, and the protruding wall portion may have: an upper wall portion protruding from the upper end portion of the main body of the speaker holding portion; and a bottom wall portion protruding from the lower end portion of the main body of the speaker holding portion, and each front end portion is configured to abut or be capable of abutting against the rear surface of the front cover.

[0032] According to the above structure, the assembly strength of the front cover and the speaker assembly can be improved. In addition, when an external load is applied from the front side of the seat, the front cover can be appropriately supported by the speaker assembly.

[0033] At this time, the vehicle seat may also include left and right microphones arranged inside the headrest, and the speaker holding portion may hold the speaker so that it is exposed to the front side of the seat, and hold the microphone so that it is exposed to the front side of the seat at a position different from the speaker.

[0034] According to the structure, the speaker and the microphone can be assembled to the headrest (speaker assembly) more easily than before. In addition, the speaker and the microphone can be mounted inside the headrest without increasing the number of parts of the speaker assembly.

[0035] Effects of the Invention

[0036] According to the present invention, a vehicle seat can be realized in which a speaker can be assembled to a headrest more easily than before. In addition, the structure of the speaker assembly can be made simpler than before.

[0037] In addition, according to the present invention, the speaker can be housed in the speaker holding portion (housing recess) with a simple structure so that the speaker is exposed to the front side of the seat. In addition, for example, the speaker can be suitably protected from external impact. In addition, the assembly state of the speaker can be visually confirmed from the front and rear of the seat.

[0038] In addition, according to the present invention, the speaker can be stored from the front of the seat relative to the speaker holding portion, and the wire harness can be stored from the rear of the seat. In addition, according to the above structure, the speaker or the wire harness can be appropriately protected.

[0039] Furthermore, according to the present invention, the rear cover, the speaker assembly, and the speaker can be firmly attached to the pillar serving as the core material of the headrest.

[0040] Furthermore, according to the present invention, for example, the speaker assembly and the speaker can be prevented from swinging in the left-right direction and the front-rear direction relative to the headrest (pillar) while the vehicle is traveling.

[0041] Furthermore, according to the present invention, the assembly strength of the front cover and the speaker assembly can be improved.

[0042] Furthermore, according to the present invention, the speaker and the microphone can be assembled to the headrest (speaker assembly) more easily than before. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] [ Figure 1 ] is a three-dimensional view of the vehicle seat of the present embodiment.

[0044] [ Figure 2 ] is a cross-sectional view of the headrest, and is a view showing the cushion material and the surface material.

[0045] [ Figure 3 ] is a three-dimensional diagram of a seat frame and a blower device.

[0046] [ Figure 4 ] is a front view of the seat frame and the air supply device.

[0047] [ Figure 5 ] is an exploded stereoscopic view of the pillar, front cover, rear cover, and lower cover.

[0048] [ Figure 6 ] is an exploded stereoscopic view of the pillar, front cover, rear cover, and lower cover viewed from another angle.

[0049] [ Figure 7 ] is an enlarged view of the main part of the front cover and is a view showing the opening.

[0050] [ Figure 8 ] is a front view of the speaker, microphone, speaker assembly and rear cover.

[0051] [ Fig.9A ] is a diagram for explaining the processing of the wire harness.

[0052] [ Fig. 9B ] is a diagram showing the state where the wiring harness passes through the inside of the support.

[0053] [ Fig.10 ] is a diagram showing a state where the wiring harness is exposed from the inside of the pillar.

[0054] [ Fig.11 ]yes Figure 8 XI-XI section view.

[0055] [ Fig.12 ]yes Figure 8 Section XII-XII of the diagram.

[0056] [ Fig.13A ] is a diagram illustrating a method 1 for manufacturing a vehicle seat.

[0057] [ Fig. 13B ] is to indicate Fig.13A The subsequent picture.

[0058] [ Fig. 13C ] is to indicate Fig. 13B The subsequent picture.

[0059] [ Fig.14A ] is a diagram illustrating a method 2 for manufacturing a vehicle seat.

[0060] [ Fig. 14B ] is to indicate Fig.14A The subsequent picture.

[0061] [ Fig. 14C ] is to indicate Fig. 14B The subsequent picture. DETAILED DESCRIPTION

[0062] Below, refer to Figure 1 to Figure 14C Embodiments of the present invention will be described.

[0063] The present embodiment relates to a vehicle seat, comprising: a headrest; and left and right speakers, which are arranged inside the headrest. The main feature of the vehicle seat is that the headrest includes a speaker assembly for assembling the speakers, and the speaker assembly has: left and right speaker holding parts, which hold the left and right speakers so that they are exposed to the front side of the seat respectively; and a connecting part, which connects the left and right speaker holding parts and is formed integrally with the left and right speaker holding parts.

[0064] In addition, with respect to the seat back (headrest) of the vehicle seat, the side on which the seat occupant sits is the seat front side.

[0065] like Figure 1 As shown, the vehicle seat S of this embodiment is a vehicle seat and includes: a seat body having a seat cushion 1, a seat back 2, and a headrest 3; a blower device 4, such as Figure 3 As shown, it is installed inside the seat back 2 and blows air toward the seated person; speakers 5 are installed inside the headrest 3 and output sound toward the seated person; and microphone 6 receives sound from the seated person or the outside and converts it into an electrical signal.

[0066] In addition, the vehicle seat S includes a control device 7 which is mounted on the seat body and is connected to the blower device 4 , the speaker 5 , and the microphone 6 to control the blower device 4 , the speaker 5 , and the microphone 6 .

[0067] In addition, the vehicle seat S may also include: a track device that supports the seat body in a manner that allows it to move forward and backward relative to the vehicle body floor; a height link device that connects the seat body in a manner that allows it to be raised and lowered relative to the vehicle body floor; and a tilt device that connects the seat back 2 in a manner that allows it to rotate relative to the seat cushion 1.

[0068] like Figure 1 As shown, the seat cushion 1 is a seat portion supporting a seated person from below, and mainly includes a cushion frame 10 as a frame, a cushion material 1a placed on the cushion frame 10, and a skin material 1b covering the cushion frame 10 and the cushion material 1a.

[0069] like Figure 1 , Figure 3 As shown, the seat back 2 is a seat back supporting a seated person from behind, and mainly includes: a back frame 20 as a skeleton, a cushion material 2a, and a surface material 2b.

[0070] like Figure 1 to Figure 3 As shown, the headrest 3 supports the head of the occupant from the rear, and mainly includes: a headrest frame 30 as a skeleton, a cushion material 3a and a cushion material 3b placed on the headrest frame 30, and a skin material 3c and a skin material 3d covering the headrest frame 30 and the cushion material 3a and the cushion material 3b.

[0071] like Figure 2 As shown, the cushion material 3a is an elastic body formed of an elastic material such as urethane.

[0072] The second cushion material 3b is a three-dimensional mesh elastic body formed of fibers entangled in a three-dimensional shape. The second cushion material 3b has both the function of a cushion material and the function of transmitting the sound output from the speaker 5.

[0073] In addition, the second cushion material 3b only needs to be formed to have higher sound transmittance than the cushion material 3a, and is not limited to a three-dimensional mesh elastic body.

[0074] like Figure 2 As shown, the skin material 3c is a covering material formed of a stretchable leather material or the like.

[0075] The second skin material 3d is a covering material formed of fibers entangled in a three-dimensional shape. The second skin material 3d has both a function as a covering material and a function of transmitting the sound output from the speaker 5.

[0076] The second skin material 3d is not particularly limited as long as it is formed to have higher sound transmittance than the skin material 3c.

[0077] In the structure, if Figure 2 As shown, the cushion portion of the cushion material corresponding to the left and right speakers 5 and microphone 6 in the seat front-rear direction is the second cushion material 3b, and the other cushion portion is the cushion material 3a.

[0078] In addition, the surface parts of the surface material corresponding to the left and right speakers 5 and microphones 6 in the seat front-rear direction are the second surface material 3d, and the other surface parts are the surface material 3c.

[0079] This allows the sound generated by the speaker 5 to be more efficiently transmitted to the outside. In addition, it is possible to suppress the seated person from feeling a sense of discomfort when the seated person's head contacts the headrest 3.

[0080] In addition, only the cushion portion and the skin portion corresponding to the speaker 5 may be formed as the second cushion material 3b and the second skin material 3d, respectively.

[0081] Alternatively, the entire cushion material and the entire surface material of the headrest 3 may be the second cushion material 3 b and the second surface material 3 d , respectively.

[0082] <Blower device, speaker, microphone, control device>

[0083] like Figure 3 , Figure 4 As shown, the blower device 4 is mounted on the front surface of the upper portion of the back frame 20. Specifically, the blower device 4 is mounted on the front surfaces of the connecting frame 23 and the rear frame 24 in the back frame 20 via the mounting bracket 27.

[0084] The blower device 4 includes a blower body 4a that supplies air, a duct 4b that allows air to pass, and a blower outlet 4c that blows air toward the back of a seated person.

[0085] The blower body 4 a is disposed at a central position of an upper portion of the back frame 20 .

[0086] The duct 4b extends from the blower body 4a to the outside (right side) in the seat width direction, bends so as to surround the pillar 31, and extends to the front side of the seat.

[0087] The blow-out port 4c is formed at the extended end portion of the duct 4b.

[0088] The blower device 4 (blower body 4a) is connected to the control device 7 via a blower harness 4d. The blower harness 4d extends from the blower body 4a to the outside (left side) in the seat width direction, bends to surround the pillar 31, and extends downward.

[0089] like Figure 3 , Figure 5 As shown, the speaker 5 is a speaker unit and is provided inside the headrest frame 30 and arranged at the left and right side portions of the headrest frame 30. Specifically, the speaker 5 is attached to the front surface of the rear cover 50 in the headrest frame 30 via the speaker assembly 70 on the left and right sides.

[0090] The microphone 6 is a microphone unit and is disposed at the left and right side portions of the headrest frame 30 similarly to the speaker 5 , and is attached to the left and right sides via the speaker assembly 70 .

[0091] like Figure 3 , Figure 8 to Figure 10 As shown, the speaker 5 and the microphone 6 are connected to the control device 7 via a wire harness 100A for the speaker and a wire harness 100B for the microphone, respectively.

[0092] The wire harness 100A and the wire harness 100B extend from the speaker 5 and the microphone 6 to the inside in the seat width direction, respectively, and are integrated into one wire harness 100, passing through the inside of the pillar 31 (the left pillar 31) and extending downward. The details will be described later.

[0093] like Figure 1 As shown, the control device 7 is a device for controlling electrical components, and is mounted on the bottom surface of the seat cushion frame 10 via a fixture (not shown).

[0094] The control device 7 is electrically connected to the blower device 4 via the blower harness 4d and the harness 100. The control device 7 is also electrically connected to the speaker 5 and the microphone 6 via the harness 100 (harness 100A, harness 100B). The control device 7 may be connected to these electrical components by wireless communication.

[0095] The control device 7 is also connected to a battery (not shown) and controls the blower device 4 , the speaker 5 , and the microphone 6 so as to supply power.

[0096] The control device 7 is connected to an external terminal, such as a tablet terminal, a smart phone, a personal computer (PC), or an electrical device, and receives a predetermined control signal (control information). Then, the drive of the blower device 4, the speaker 5, and the microphone 6 is controlled based on the control signal.

[0097] In addition, the control device 7 may be installed at another location inside the vehicle seat S, or may be installed outside the vehicle seat S.

[0098] <Seat frame>

[0099] The seat cushion frame 10, in the case where illustration is omitted, comprises a roughly rectangular frame-shaped body, and mainly includes: seat cushion side frames, which are arranged on the left and right sides and extend along the front-rear direction of the seat; a disc frame, which is mounted on the front part of each seat cushion side frame; a connecting frame, which connects the rear parts of each seat cushion side frame; and a plurality of elastic springs, which are hung on the disc frame and the connecting frame and extend in a snake-like manner along the front-rear direction of the seat.

[0100] Furthermore, in the present embodiment, the control device 7 is mounted on the bottom surface of the seat cushion frame 10 (pan frame).

[0101] like Figure 3 , Figure 4 As shown, the backrest frame 20 includes a frame-like body of a roughly rectangular shape, and includes: side frames 21, which are arranged on the left and right sides and extend in the up-down direction; an upper frame 22 in an inverted U-shape, connecting the upper end portions of each side frame 21; a lower frame not shown, connecting the lower end portions of each side frame 21; a plate-like connecting frame 23, which is mounted on the left and right lower portions of the upper frame 22 and extends in the seat width direction; and a plate-like rear frame 24, which is installed on the rear surface of the upper frame 22.

[0102] In addition, the backrest frame 20 also includes: left and right support lines 25 (passenger support lines), which are hooked on the connecting frame 23 and the lower frame and extend in the up and down direction; and a roughly rectangular support plate 26 (passenger support plate), which is arranged in the central part of the backrest frame 20, is held by the left and right support lines 25, and supports the seated person from the rear.

[0103] In addition, the left and right side frames 21, the upper frame 22, and the lower frame correspond to a "frame-shaped main body frame".

[0104] A mounting bracket 27 for mounting the blower device 4 is also mounted on the front surfaces of the connecting frame 23 and the rear frame 24 .

[0105] Specifically, the center portion of the connecting frame 23 in the seat width direction has a recessed shape recessed toward the rear of the seat. The rear frame 24 is disposed so as to cover substantially the entirety of the upper frame 22 and the connecting frame 23 from the rear.

[0106] The mounting bracket 27 is mounted in a state where a portion thereof is fitted into the front surface of the connecting frame 23 from the front of the seat, and is fixed to the connecting frame 23 and the rear frame 24 by a plurality of fastening bolts 28 .

[0107] The mounting bracket 27 is disposed so as to be sandwiched between the left and right pillars 31 and the rear frame 24 in the seat front-rear direction.

[0108] In addition, the plurality of fastening bolts 28 are arranged so as to surround the blower device 4 (the blower main body 4 a ) when viewed from the front of the seat.

[0109] Thereby, the mounting rigidity of the blower device 4 can be improved.

[0110] A harness holding portion 24a for holding the harness 100 is formed at the lower end of the rear frame 24. In addition, a third harness mounting hole 24b (third harness mounting portion) for mounting a third mounting clip 103 (third mounted portion) provided on the harness 100 is formed on the front surface of the harness holding portion 24a.

[0111] The harness holding portion 24 a hangs down from the lower end portion of the rear frame 24 , and is formed in plurality at intervals in the seat width direction.

[0112] With the above structure, the wire harness 100 extending from the speaker 5 and the microphone 6 can be appropriately held. In addition, interference between the wire harness 100 and other components can be suppressed.

[0113] Left and right pillar guides 29 for attaching left and right pillars 31 serving as a core material of the headrest 3 are assembled to the upper end of the upper frame 22 .

[0114] The pillar guide 29 is a guide member that is fixed to the back frame 20 and holds the pillar 31 so as to be movable in the up-down direction.

[0115] The left and right pillar guides 29 are arranged at positions overlapping with the mounting bracket 27 in the seat front-rear direction, and are arranged at positions different from the mounting bracket 27 in the seat width direction.

[0116] Therefore, the design is such that the components are arranged compactly but interference between the components is suppressed.

[0117] like Figure 3 , Figure 5 to Figure 7 As shown, the headrest frame 30 mainly includes: an inverted U-shaped pillar 31 serving as the core material of the headrest 3, a front cover 40 and a rear cover 50 respectively assembled to the pillar 31 and arranged to clamp the pillar 31 from the front-rear direction of the seat, and a lower cover 60 arranged to cover the pillar 31 from below.

[0118] The front cover 40 , the rear cover 50 , and the lower cover 60 are arranged to cover the pillar 31 , the speaker 5 , the microphone 6 , and the speaker assembly 70 from the outside, and are assembled to each other.

[0119] In addition, the front cover 40, the rear cover 50, and the lower cover 60 correspond to the "main body of the headrest".

[0120] like Figure 5 , Figure 6 , Figure 8 As shown, the pillar 31 is a cylindrical supporting member that supports the main body of the headrest 3, and includes: left and right pillar extension portions 31a, which are arranged at a predetermined interval in the seat width direction and extend downward from the main body of the headrest 3 toward the seat back 2; and a pillar connecting portion 31b, which connects the upper end portions of the left and right pillar extension portions 31a and extends along the seat width direction.

[0121] like Fig.9A , Fig. 9B As shown, a harness insertion hole 32 for passing the harness 100 is formed on the outer peripheral surface of the support 31 (the left support extension portion 31 a ).

[0122] The harness insertion hole 32 is formed on the inner side surface of the pillar extension portion 31 a in the seat width direction, and has a cross-sectional shape in an inverted tapered shape.

[0123] Therefore, the wire harness can be easily inserted into the support column. In addition, the wire harness can be prevented from being accidentally deformed.

[0124] In addition, the cross-sectional shape of the harness insertion hole 32 may be a tapered shape or a linear shape.

[0125] like Figure 3 , Fig.10 As shown, a cylindrical cap member 33 having flexibility compared to the metal support 31 is attached to the lower end of the support 31 (the left support extension portion 31 a ).

[0126] The cap member 33 is also called a support end cap, and is a rubber cap, for example, and is detachably mounted on the lower end of the support 31 from below.

[0127] The cap member 33 has a support protrusion 33 a formed on the inner peripheral surface thereof and capable of being engaged with a support groove 31 c provided on the outer peripheral surface of the support column 31 .

[0128] The cap member 33 is attached to cover the end surface, inner surface, and outer surface of the lower end portion of the support column 31 in a state where the cap member 33 is hooked in the support groove 31 c via the support protrusion 33 a .

[0129] Therefore, when the wire harness 100 is exposed from the lower end portion of the support column 31 , the wire harness 100 can be protected by the cap member 33 .

[0130] <Front cover>

[0131] like Figure 3 , Figure 5 to Figure 7 As shown, the front cover 40 is a cover made of resin, and is integrally assembled with the rear cover 50 and the lower cover 60 .

[0132] Specifically, the front cover 40 is assembled with the rear cover 50 in the seat front-rear direction, and then assembled with the lower cover 60 in the up-down direction.

[0133] The front cover 40 is a plate body including a front wall portion 40a, an upper wall portion 40b, left and right side wall portions 40c, and a bottom wall portion 40d.

[0134] The front cover 40 includes a cover center portion 41 provided in the center of the seat width direction and left and right cover side portions 42 disposed on the left and right outer sides of the cover center portion 41 and protruding toward the front of the seat.

[0135] The front cover 40 has an outer edge formed at the upper end and both left and right ends with locking pieces 43 and locking holes 43 a that protrude toward the rear of the seat and can be locked to the rear cover 50 (locking claws 55 ).

[0136] A first pillar hooking recess 44 is formed at the upper end of the rear surface of the front cover 40, which protrudes toward the rear of the seat and can be assembled to the rear cover 50 (first pillar hooking clip 56). In addition, left and right second pillar hooking recesses 45 are formed at the rear end of the bottom surface of the front cover 40, which can be assembled to the rear cover 50 (left and right second pillar hooking clips 57).

[0137] Left and right assembly bosses 46 (assembly portions) are formed at a lower portion of the front surface of the front cover 40 so as to be recessed toward the rear of the seat and to be assembled to the rear cover 50 (assembly holes 58 ).

[0138] According to the above structure, the front cover 40 is detachably engaged with the engaging claw 55 via the engaging piece 43 (engaging hole 43a), and the pillar engaging recess 44 and the pillar engaging recess 45 are detachably engaged with the pillar engaging clip 56 and the pillar engaging clip 57, and is temporarily fixed to the rear cover 50.

[0139] Then, the front cover 40 is permanently fixed to the rear cover 50 by bolting the assembly bosses 46 into the assembly holes 58 .

[0140] An engagement hole 47 is formed on the bottom surface of the front cover 40 so as to penetrate in the up-down direction and can be assembled to the lower cover 60 (engagement hook 62 ).

[0141] A fixing hole 48 (fixing portion) is formed at the lower end portion of the front cover 40 so as to protrude downward and is fixed to the lower cover 60 (fixing boss 63 ).

[0142] According to the above configuration, the front cover 40 is detachably engaged with the engagement hooks 62 through the engagement holes 47 and is temporarily fixed to the lower cover 60 .

[0143] The front cover 40 is fixed integrally with the lower cover 60 by bolting the fixing bosses 63 in a state of abutting against the fixing holes 48 .

[0144] To describe in detail, the fixing protrusions 63 are brought into contact with the fixing holes 48 of the front cover 40 and the fixing holes 59 of the rear cover 50 in a state where they are overlapped like a fit. Thereafter, the front cover 40, the rear cover 50, and the lower cover 60 are fixed by bolting.

[0145] like Figure 3 , Figure 7 As shown, the left and right cover side portions 42 have lattice-shaped openings 49 formed at positions corresponding to the left and right speakers 5 in the seat front-rear direction.

[0146] The opening portion 49 has a plurality of passage holes, also referred to as a speaker grill, for passing the sound output from the speaker 5 .

[0147] The opening 49 is formed in a lattice shape, but the shape is not particularly limited and the opening 49 may be formed in a mesh shape. The shape is not particularly limited as long as it can allow sound to pass through.

[0148] like Figure 7 As shown, a reinforcing rib 49 a formed along a lattice-shaped frame is formed on the rear surface of the opening 49 .

[0149] The reinforcing rib 49 a extends in the seat width direction and in the up-down direction. The reinforcing rib 49 a extending in the seat width direction is connected to a wall portion 41 a (partitioning wall portion) between the cover center portion 41 and the cover side portion 42 .

[0150] <Rear cover>

[0151] like Figure 5 , Figure 6 , Figure 8 As shown, the rear cover 50 is a cover made of resin, and is integrally assembled with the front cover 40 and the lower cover 60 .

[0152] The rear cover 50 is assembled with the front cover 40 in the seat front-rear direction, and then assembled with the lower cover 60 in the up-down direction.

[0153] The rear cover 50 is a plate body including a rear wall portion 50a, an upper wall portion 50b, left and right side wall portions 50c, and a bottom wall portion 50d.

[0154] Left and right mounting bosses 51 (mounting portion) are formed at the upper end of the front surface of the rear cover 50, which protrude forward of the seat and can be mounted on the speaker assembly 70 (left and right cover mounting holes 91). Also, left and right second mounting bosses 52 (second mounting portion) are formed at the lower end of the front surface of the rear cover 50, which can be mounted on the speaker assembly 70 (left and right second cover mounting holes 85). Furthermore, a third mounting boss 53 (third mounting portion) is formed at the center of the front surface of the rear cover 50, which can be mounted on the speaker assembly 70 (third cover mounting hole 92).

[0155] The left and right second mounting bosses 52 are arranged on the outer sides of the left and right mounting bosses 51 in the seat width direction. The third mounting bosses 53 are arranged on the inner sides of the left and right mounting bosses 51 .

[0156] According to the above structure, the speaker assembly 70 is attached to the front surface of the rear cover 50 .

[0157] To describe in detail, the speaker assembly 70 (third cover mounting hole 92) is temporarily fixed to the rear cover 50 (third mounting boss 53). Furthermore, the cover mounting hole 91 and the cover mounting hole 85 are permanently fixed to the mounting boss 51 and the mounting boss 52 using mounting bolts.

[0158] A second harness mounting hole 54 for mounting the harness 100 (second mounting clip 102 ) is formed at a lower end portion of the front surface of the rear cover 50 .

[0159] Thus, the wire harness 100 can be appropriately held by the rear cover 50 .

[0160] The outer edge of the rear cover 50 is provided with locking claws 55 (locking portions) at the upper end and both left and right ends thereof, which protrude forward of the seat and can be locked to the front cover 40 (locking piece 43 ).

[0161] A first pillar hooking clip 56 (first pillar hooking portion) is formed at the upper end of the front surface of the rear cover 50, which protrudes toward the front of the seat and can be assembled to the front cover 40 (first pillar hooking recess 44). In addition, left and right second pillar hooking clips 57 (second pillar hooking portions) are formed at the front end of the bottom surface of the rear cover 50, which can be assembled to the front cover 40 (second pillar hooking recess 45).

[0162] Left and right assembly holes 58 (assembly target portions) are formed at a lower portion of the front surface of the rear cover 50 so as to be recessed toward the rear of the seat and which can be assembled to the front cover 40 (left and right assembly bosses 46 ).

[0163] The pillar hook clip 56 is disposed at a position overlapping with the left and right mounting bosses 51 in the up-down direction.

[0164] like Figure 8 As shown, the pillar hooking clip 56 and the pillar hooking clip 57 are arranged at positions sandwiching the left and right second mounting protrusions 52 and the third mounting protrusions 53 in the up-down direction.

[0165] The pillar hook clip 56 is disposed between the left and right mounting bosses 51 and 52 in the seat width direction.

[0166] The second pillar hook clip 57 is disposed between the left and right mounting bosses 52 in the seat width direction.

[0167] The first pillar hook clip 56 is formed to clamp the pillar 31 in the up-down direction, and the second pillar hook clip 57 is formed to clamp the pillar 31 in the seat width direction.

[0168] According to the above structure, the pillars 31 and the front cover 40 are assembled to the front surface of the rear cover 50 .

[0169] To describe in detail, first, the support column 31 is hooked on the rear cover 50 (support column hooking clip 56, support column hooking clip 57). Then, the front cover 40 (hooking piece 43, support column hooking recess 44, support column hooking recess 45) is hooked on the rear cover 50 (hooking claw 55, support column hooking clip 56, support column hooking clip 57). Then, the front cover 40 (assembly protrusion 46) is bolted to the rear cover 50 (assembly hole 58).

[0170] Furthermore, the pillar 31 is clamped in the seat front-rear direction by the front cover 40 (pillar hooking recess 44, pillar hooking recess 45) and the rear cover 50 (pillar hooking clip 56, pillar hooking clip 57).

[0171] In the structure, if Figure 8 As shown, when the pillar 31 is hooked on the pillar hooking clips 56 and 57 , a gap filling member 34 for filling the gap formed between the pillar 31 and the pillar hooking clips 56 and 57 is installed.

[0172] The gap filling member 34 is a member having flexibility (elasticity). The gap filling member 34 can suppress the shaking of the support column 31 or the rear cover 50. In addition, the generation of abnormal noise between the support column 31 and the rear cover 50 can be suppressed.

[0173] In addition, the gap filling member 34 may be a nonwoven fabric, or may be a dowel, a texture, or a rib formed on the outer periphery of the support column 31 or the outer surface of the rear cover 50 .

[0174] A fixing hole 59 (fixing portion) is formed at the lower end portion of the rear cover 50 so as to protrude downward and is fixed to the lower cover 60 (fixing boss 63).

[0175] According to the above structure, the rear cover 50 is fixed to the lower cover 60 by performing bolt fastening in a state where the fixing bosses 63 are in contact with the fixing holes 59 .

[0176] <Lower cover>

[0177] like Figure 3 , Figure 5 , Figure 6 As shown, the lower cover 60 is a cover made of resin, and is integrally assembled with the front cover 40 and the rear cover 50 , and is arranged to cover the front cover 40 and the rear cover 50 from below.

[0178] The lower cover 60 is a plate body having a curved shape that is curved downward. Specifically, the outer edge portion of the lower cover 60 is formed to protrude upward.

[0179] Left and right support insertion holes 61 (support insertion portions) for allowing the support columns 31 (left and right support extension portions 31 a ) to pass therethrough are formed on left and right side portions of the upper surface of the lower cover 60 .

[0180] Thus, the lower cover 60 can be assembled to the support column 31 hooked on the rear cover 50 .

[0181] An engagement hook 62 is formed at a center portion of the upper surface of the lower cover 60 so as to protrude upward and to be detachably engaged with the front cover 40 (engagement hole 47 ).

[0182] A plurality of fixing bosses 63 (fixed portions) that protrude upward and can be fixed to the front cover 40 (fixing holes 48 ) and the rear cover 50 (fixing holes 59 ) are formed on the upper surface of the lower cover 60 .

[0183] The fixing bosses 63 are arranged at intervals in the seat width direction so as to sandwich the engaging hooks 62 therebetween.

[0184] According to the above structure, after the lower cover 60 is temporarily fixed to the front cover 40 , it is fixed to the front cover 40 and the rear cover 50 by bolts.

[0185] <Speaker assembly>

[0186] like Figure 5 , Figure 6 , Figure 8 , Fig.9A As shown, the speaker assembly 70 is a resin box (frame) and has: left and right speaker holding parts 80, which are arranged on the left and right side parts of the headrest 3, and hold the left and right speakers 5 (microphone 6) so that they are exposed to the front side of the seat; and a connecting part 90, which connects the left and right speaker holding parts 80 and is formed integrally with the left and right speaker holding parts 80.

[0187] “Integrally formed” includes not only the speaker holding portion 80 and the connecting portion 90 being integrally formed, but also a state where they are integrated by welding, etc. Furthermore, it includes a state where they are assembled to each other without requiring a separate mounting member (mounting plate, mounting bolts, etc.).

[0188] The speaker assembly 70 is arranged so as to cover the pillar 31 from both sides in the seat width direction by the left and right speaker holding portions 80 and to cover the pillar 31 from the seat rear side by the connecting portion 90 .

[0189] This can suppress, for example, the speaker assembly 70 and the speaker 5 from swinging (moving) in the left-right direction and the front-rear direction relative to the headrest 3 (pillar 31 ) while the vehicle is traveling.

[0190] like Figure 5 , Figure 6 , Figure 8 As shown, the speaker holding portion 80 has a function of accommodating the speaker 5 and the microphone 6 and a function of accommodating the wire harness 100 connected to the speaker 5 and the microphone 6 respectively.

[0191] The speaker holding portion 80 has: a central wall portion 80a, a protruding wall portion (upper wall portion 80b, bottom wall portion 80c, side wall portion 80d) protruding from the outer edge portion of the central wall portion 80a toward the front of the seat, and an extended wall portion (rear upper wall portion 80e, rear bottom wall portion 80f, left and right rear side wall portions 80g) extending from the outer edge portion of the central wall portion 80a toward the rear of the seat.

[0192] The speaker holding portion 80 also includes a second extended wall portion (a lower front wall portion 80h, a flange wall portion 80i, and a reinforcement wall portion 80j) extending downward from the rear bottom wall portion 80f.

[0193] In the structure, if Figure 5 , Fig.11 As shown, the upper wall portion 80b protrudes forward from the upper end of the main body (central wall portion 80a) of the speaker holding portion 80. The bottom wall portion 80c protrudes forward from the lower end of the central wall portion 80a. The side wall portion 80d protrudes forward from the side end (right end) of the central wall portion 80a. And, the front end portions of each are in contact with the rear surface of the front cover 40.

[0194] Thus, when an external load is applied from the front side of the seat, the front cover 40 can be appropriately supported by the speaker assembly 70 .

[0195] In addition, these wall portions 80 b , 80 c , and 80 d do not necessarily need to come into contact with the front cover 40 , and may be arranged so as to be able to come into contact with the front cover 40 .

[0196] like Figure 5 , Figure 6, Figure 8 As shown, the speaker holding portion 80 has: a receiving recess 81, which is arranged in the front position thereof and receives the speaker 5 and the microphone 6; a rear receiving recess 82, which is arranged in the rear position of the speaker holding portion 80 and receives the wiring harness 100; and a cover portion 83, which covers the rear receiving recess 82 from the rear of the seat.

[0197] The speaker 5 and the microphone 6 are accommodated in the accommodation recess 81 from the seat front side, and are held in a state of being exposed to the seat front side.

[0198] In detail, the speaker 5 is received through the receiving bottom surface of the receiving recess 81, and is held in a state of being exposed to the front side and the rear side of the seat from the speaker holding portion 80. The microphone 6 is received in a recessed portion 81a provided on the receiving bottom surface of the receiving recess 81, and is held in a state of being exposed to the front side of the seat from the speaker holding portion 80.

[0199] In more detail, the speaker 5 passes through the storage bottom surface of the storage recess 81 and the storage bottom surface of the rear storage recess 82 in the seat front-rear direction. In other words, the speaker 5 is stored in the storage recess 81 and the rear storage recess 82.

[0200] In the structure, if Figure 8 , Fig.11 As shown, the speaker holding portion 80 holds the speaker 5 in a state of being exposed toward the front side of the seat, and holds the microphone 6 at a position below the speaker 5 in a state of being exposed toward the front side of the seat.

[0201] In addition, the speaker 5 and the microphone 6 are arranged between the upper end of the mounting boss 51 and the lower end of the connecting portion 90 in the up-down direction.

[0202] Thus, the rear cover 50 , the speaker assembly 70 , the speaker 5 , and the microphone 6 can be firmly attached to the pillar 31 that is the core material of the headrest 3 .

[0203] The wire harness 100A connected to the speaker 5 and the wire harness 100B connected to the microphone 6 are accommodated in the rear accommodation recess 82. The rear accommodation recess 82 is covered by a cover 83 from behind the seat.

[0204] If described in detail, Figure 6 As shown, bolt holes 82a and 83a are formed at the lower end of the rear receiving recess 82 and the lower end of the cover 83. The cover 83 is mounted on the rear receiving recess 82 by installing fixing bolts in a state where these bolt holes 82a and 83a are connected.

[0205] In addition, if Figure 6 , Fig.9A As shown, the extended end portions of the wire harnesses 100A and 100B protrude from the gap formed on the inner side surface of the rear accommodating recess 82 to the inner side in the seat width direction.

[0206] In the structure, if Figure 8 As shown, a chamfered portion 84 is formed at a corner portion (corner portion at the inner lower end portion) of the housing recess 81 .

[0207] This can improve the rigidity of the housing recess 81. In addition, it is possible to suppress interference between the housing recess 81 and other components.

[0208] In the structure, if Figure 5 , Figure 8 As shown, left and right second cover mounting holes 85 capable of being mounted on the rear cover 50 (left and right second mounting bosses 52 ) are formed at the lower end of the speaker holding portion 80 .

[0209] The second cover mounting hole 85 is disposed directly below the speaker 5 and the microphone 6. Furthermore, the second cover mounting hole 85 is disposed outside the support column 31 in the seat width direction.

[0210] like Figure 5 , Figure 6 , Figure 8 , Fig.9A As shown, the connection portion 90 is a connection bracket that is elongated in the seat width direction and is a portion for assembling the speaker assembly 70 to the support column 31 and also a portion for holding the wire harness 100 extending from the speaker 5 (microphone 6).

[0211] The connecting portion 90 includes a rear wall portion 90a extending in a long strip along the width direction of the seat to connect the left and right speaker holding portions 80; an upper wall portion 90b extending from the upper end portion of the rear wall portion 90a toward the front of the seat; and a front wall portion 90c extending upward from the front end portion of the upper wall portion 90b.

[0212] Left and right cover mounting holes 91 that can be mounted to the rear cover 50 (left and right mounting bosses 51 ) are formed at the upper end of the connection portion 90 (front wall portion 90 c ).

[0213] Furthermore, a third cover mounting hole 92 that can be mounted to the rear cover 50 (third mounting boss 53 ) is formed in the center portion of the connecting portion (rear wall portion 90 a ).

[0214] A harness guide portion 93 and a harness guide portion 94 are formed on the rear surface of the coupling portion 90 (front wall portion 90 c ) so as to protrude toward the rear of the seat and guide the harness 100 .

[0215] The harness guide portion 93 and the second harness guide portion 94 are arranged so as to be aligned in the seat width direction and are arranged at positions facing the rear housing recessed portion 82 .

[0216] The harness guides 93 and 94 have a U-shape, and support the harness 100 from above, below, and front after the harness 100 is attached from behind the seat.

[0217] like Figure 8 , Fig.9A As shown, a plurality of harness mounting holes 95 are formed on the front surface of the central portion of the coupling portion 90 (rear wall portion 90 a ) for mounting mounting clips 101 provided on the harness 100 for supporting the harness 100 .

[0218] In addition, if Fig.9A As shown, a reinforcing rib 96 extending in a long line along the extending direction of the connecting portion 90 is formed on the rear surface of the connecting portion 90 (rear wall portion 90 a ) at a position above the harness mounting hole 95 .

[0219] In addition, if Figure 5 , Figure 8 , Fig.12 As shown, abutment ribs 97 are formed on the front surfaces of the left and right side portions of the connection portion 90 (rear wall portion 90 a ) so as to protrude toward the front of the seat toward the pillar 31 and abut against the rear surface of the pillar 31 .

[0220] like Figure 8 , Fig.9A As shown, a plurality of harness mounting holes 95 are arranged in a row in the seat width direction.

[0221] The reinforcing rib 96 extends to the left and right outer sides of the plurality of harness mounting holes 95 in the seat width direction, and projects toward the side (seat rear side) opposite to the harness 100 side (seat front side).

[0222] Therefore, when the reinforcing rib 96 is formed around the wire harness mounting hole 95 , the reinforcing rib 96 can be arranged while suppressing interference between the wire harness 100 and the reinforcing rib 96 .

[0223] like Figure 8 As shown, the contact ribs 97 are formed left and right at predetermined intervals in the seat width direction.

[0224] The left and right contact ribs 97 are arranged so as to sandwich the harness mounting hole 95 therebetween.

[0225] Specifically, the contact rib 97 includes a first contact rib 97a and a second contact rib 97b which are arranged at intervals in the up-down direction, and a connecting rib 97c which connects the first contact rib 97a and the second contact rib 97b.

[0226] Moreover, if Fig.12 As shown, the first contact rib 97 a , the second contact rib 97 b , and the connecting rib 97 c are in contact with the rear surface of the support column 31 , respectively.

[0227] In addition, the contact rib 97 does not necessarily need to contact the support column 31 , and may be arranged so as to be able to contact the support column 31 .

[0228] <Wire harness>

[0229] like Figure 6 , Figure 8 to Figure 10 As shown, the wire harness 100A and the wire harness 100B extend from the speaker 5 and the microphone 6 to the inner side in the seat width direction, respectively, and are combined into one wire harness 100, and extend downward toward the seat back 2 through the inside of the support column 31 (the left support column 31). Furthermore, they further extend from the seat back 2 toward the seat cushion 1 and are connected to the control device 7 provided on the seat cushion 1.

[0230] The harness 100A and the harness 100B each have a mounting clip 101 that can be mounted on the speaker assembly 70 (harness mounting hole 95). Specifically, a coupler is provided at a position facing the harness mounting hole 95, and the mounting clip 101 is provided on the coupler.

[0231] In addition, the wire harness 100 has a second mounting clip 102 that can be mounted to the rear cover 50 (the second wire harness mounting hole 54 ).

[0232] In addition, the wire harness 100 has a third mounting clip 103 that is provided inside the seat back 2 and can be mounted to the rear frame 24 (third wire harness mounting hole 24 b ).

[0233] In addition, the wire harness 100 has a wire harness guide 104 that is provided inside the seat back 2 and covers the wire harness 100 (wire harness main body).

[0234] The following is based on Figure 3 , Figure 6 , Figure 8 to Figure 10 The processing of the wire harness 100 will be described in detail.

[0235] The wire harness 100A ( 100B) is connected to the speaker 5 (microphone 6 ) and is accommodated in the rear accommodation recess 82 .

[0236] The wire harness 100A extending from the speaker 5 extends from the rear accommodating recess 82 toward the inner side in the seat width direction and is supported by the wire harness guides 93 and 94 .

[0237] The wire harness 100A extends downward from the wire harness guides 93 and 94 and is supported by the wire harness mounting hole 95. Specifically, the mounting clip 101 is mounted in the wire harness mounting hole 95.

[0238] Furthermore, the wire harness 100A and the wire harness 100B extend downward and are integrated into one wire harness 100 .

[0239] The wire harness 100 that is gathered into one is supported by the second wire harness mounting hole 54. Specifically, the second mounting clip 102 is mounted to the rear cover 50 (the second wire harness mounting hole 54).

[0240] Furthermore, the wire harness 100 extends from the second wire harness mounting hole 54 toward the pillar 31 (the left pillar extension portion 31 a ) toward one side (the left side) in the seat width direction.

[0241] Then, the wire harness 100 passes through the interior of the pillar 31 via a wire harness insertion hole 32 provided in the pillar 31 , and extends downward toward the seat back.

[0242] The wire harness 100 exposed from the lower end of the pillar 31 once extends to the right side in the seat width direction, then turns back and extends to the left side in the seat width direction along the lower end of the rear frame 24 .

[0243] At this time, the wire harness 100 is held by a plurality of wire harness holding portions 24a located at the lower end of the rear frame 24. In addition, the wire harness 100 is supported by a third wire harness mounting hole 24b located at the lower end of the rear frame 24. Specifically, the third mounting clip 103 is mounted in the third wire harness mounting hole 24b.

[0244] Inside the seat back 2 , the wire harness 100 and the blower wire harness 4 d are integrated into one wire harness and extend downward toward the seat cushion 1 .

[0245] Then, the wire harness 100 gathered into one is connected to the control device 7 provided inside the seat cushion 1 .

[0246] In the structure, if Fig.9A As shown, the wire harness 100A and the wire harness 100B extend from the speaker 5 and the microphone 6, respectively. It is also possible to assemble these wire harnesses 100A and 100B without error.

[0247] For example, the thickness of the harness 100A connected to the speaker 5 and the thickness of the harness 100B connected to the microphone 6 may be changed. That is, the thickness of the harness 100A may be thicker than the thickness of the harness 100B. Alternatively, the thickness of the harness 100A may be thinner than the thickness of the harness 100B.

[0248] In addition, for example, the coupler (connector) of the harness 100A and the coupler (connector) of the harness 100B may be provided with different shapes, sizes, colors, or marks. As different marks, the harness 100A may be marked with "S (speaker)" and the harness 100B may be marked with "M (microphone)".

[0249] In the structure, if Fig.9A As shown in FIG. 2B , the left and right wire harnesses 100 are integrated into one and pass through the inside of the left support column 31 .

[0250] On the other hand, as a modified example, the wire harness 100 connected to the left speaker 5 may extend from the left speaker toward the pillar 31, pass through the wire harness insertion hole 32 provided in the left pillar extension portion 31a, and pass through the inside of the pillar 31. Furthermore, the wire harness 100 connected to the right speaker 5 may also pass through the wire harness insertion hole 32 provided in the right pillar extension portion 31a and pass through the inside of the pillar 31.

[0251] <Method for manufacturing vehicle seat>

[0252] Next, based on Figures 13A to 13C , Figures 14A to 14C , the manufacturing method 1 and the manufacturing method 2 of the vehicle seat S are described.

[0253] In addition, in the method of manufacturing the vehicle seat S, descriptions of manufacturing steps other than those described below are omitted.

[0254] In "Manufacturing method 1", if Figures 13A to 13C As shown, first, the speaker 5 and the microphone 6 are assembled to the speaker assembly 70. Specifically, the speaker 5 is assembled to the speaker holding portion 80 (accommodating recessed portion 81) and fixed with an adhesive or assembly bolts. In addition, the microphone 6 is assembled to the recessed portion 81a.

[0255] Then, the speaker assembly 70 is mounted on the rear cover 50. Specifically, the cover mounting hole 91, the cover mounting hole 85, and the cover mounting hole 92 are mounted on the left and right mounting bosses 51, 52, and 53. More specifically, the cover mounting hole 91 and the cover mounting hole 85 are fixed by bolts on the mounting bosses 51 and 52. In addition, the third cover mounting hole 92 is hooked and temporarily fixed to the third mounting boss 53.

[0256] Then, the support column 31 is hooked on the rear cover 50. Specifically, the support column 31 is hooked on the support column hooking clip 56 and the support column hooking clip 57.

[0257] Then, the wire harness 100 is passed through the interior of the support column 31 .

[0258] Then, the front cover 40 is assembled to the rear cover 50 , and the lower cover 60 is assembled from below in a state where the front cover 40 and the rear cover 50 are assembled.

[0259] In "Manufacturing method 2", if Figures 14A to 14C As shown, first, the speaker 5 and the microphone 6 are assembled to the speaker assembly 70 .

[0260] Then, the speaker assembly 70 is “temporarily fixed” to the rear cover 50 . Specifically, the third cover mounting hole 92 is hooked and temporarily fixed to the third mounting boss 53 .

[0261] Then, the support column 31 is hooked on the rear cover 50 . At this time, the speaker assembly 70 is pressed against the rear cover 50 by the support column 31 .

[0262] Then, the speaker assembly 70 is “finally fixed” to the rear cover 50. Specifically, the cover mounting holes 91 and 85 are fixed to the mounting bosses 51 and 52 with bolts.

[0263] Then, the wire harness 100 is passed through the interior of the support column 31 .

[0264] Then, the front cover 40 is assembled to the rear cover 50 , and the lower cover 60 is assembled from below in a state where the front cover 40 and the rear cover 50 are assembled.

[0265] According to the above configuration, it is possible to realize the vehicle seat S in which the speaker 5 can be easily assembled to the headrest 3 .

[0266] In addition, it is possible to realize a vehicle seat S in which the structure of the speaker assembly 70 for assembling the speaker 5 is simpler than that of the related art.

[0267] Furthermore, a method for manufacturing the vehicle seat S can also be realized.

[0268] <Other embodiments>

[0269] In the embodiment described, Figure 5 As shown, the headrest frame 30 includes a front cover 40 , a rear cover 50 , and a lower cover 60 , but is not particularly limited.

[0270] For example, the lower cover 60 may not be necessary. Alternatively, the front cover 40 or the rear cover 50 may not be necessary.

[0271] In the embodiment described, Figure 5 , Figure 6 As shown, the engagement holes 47 of the front cover 40 are engaged with the engagement hooks 62 of the lower cover 60 , but the engagement structure is not particularly limited.

[0272] For example, the engaging hole 47 may be replaced with an engaging recess.

[0273] In addition, for example, the engaging structure may be changed to an engaging structure other than the engaging hole and the engaging hook. That is, the engaged portion of the front cover 40 and the engaging portion of the lower cover 60 may be engaged with each other by other engaging structures.

[0274] Furthermore, in the above-described embodiments, the structures of the locking portion and the locked portion, the mounting portion and the mounted portion, the assembling portion and the assembled portion, the fixing portion and the fixed portion, etc. may be appropriately changed.

[0275] In the embodiment described, Figure 5 , Figure 6 As shown in FIG. 1 , the left and right speaker holding parts 80 and the connecting part 90 are integrally formed in the speaker assembly 70 , but the present invention is not particularly limited thereto.

[0276] The left and right speaker holding parts 80 and the connecting part 90 may be formed separately. That is, the speaker holding part 80 and the connecting part 90 may be connected via a mounting member.

[0277] In the embodiment described, Figure 5 , Figure 6 As shown, the speaker holding portion 80 has a receiving recess 81 and a rear receiving recess 82, but may have any one of the receiving recesses.

[0278] For example, the speaker holding portion 80 may only have the rear storage recess 82 (storage recess) to store the speaker 5, microphone 6 and harness 100. In this case, the speaker 5 and microphone 6 may be arranged to penetrate the storage bottom surface of the rear storage recess 82 and be exposed to the front side of the seat.

[0279] In the above embodiment, a vehicle seat used in a car is described as a specific example, but the invention is not particularly limited and can be used as a vehicle seat for a train, a bus, or the like as well as an aircraft, a ship, or the like.

[0280] In the present embodiment, the vehicle seat of the present invention is mainly described.

[0281] However, the above-described embodiment is only an example for facilitating understanding of the present invention, and does not limit the present invention. The present invention can of course be changed and improved without departing from the gist thereof, and the present invention includes equivalents thereof.

[0282] Explanation of symbols

[0283] S: Seats for transportation

[0284] 1: Seat cushion

[0285] 1a, 2a: Cushion material

[0286] 1b, 2b: Surface material

[0287] 2: Seat back

[0288] 3: Headrest

[0289] 3a: Cushion material

[0290] 3b: Second cushion material

[0291] 3c: Skin material

[0292] 3d: Second skin material

[0293] 4: Blower device

[0294] 4a: Blower body

[0295] 4b: Catheter

[0296] 4c: Blowing outlet

[0297] 4d: Wiring harness for blower

[0298] 5: Speaker (speaker unit)

[0299] 6: Microphone (microphone unit)

[0300] 7: Control device

[0301] 10: Seat frame

[0302] 20: Backrest frame

[0303] 21: Side frame

[0304] 22: Upper frame

[0305] 23: Linking Frames

[0306] 24: Rear frame

[0307] 24a: Harness holding portion

[0308] 24b: Third wiring harness mounting hole

[0309] 25: Support line (crew support line)

[0310] 26: Support plate (passenger support plate)

[0311] 27: Mounting bracket

[0312] 28: Fastening bolts

[0313] 29: Pillar guide

[0314] 30: Headrest frame

[0315] 31: Pillar (headrest pillar)

[0316] 31a: Pillar extension

[0317] 31b: Pillar connection part

[0318] 31c: Support groove

[0319] 32: Wire harness insertion hole

[0320] 33: Cap member

[0321] 33a: Support protrusion

[0322] 34: Gap filling components

[0323] 40: Front hood

[0324] 40a: Anterior wall

[0325] 40b: Upper wall

[0326] 40c: Side wall

[0327] 40d: Bottom wall

[0328] 41: Center of the hood

[0329] 41a: Wall (dividing wall)

[0330] 42: Side of hood

[0331] 43: Stopper (stopped part)

[0332] 43a: Locking hole

[0333] 44: First pillar hooking recess (first pillar hooking portion)

[0334] 45: Second pillar hooking recess (second pillar hooking portion)

[0335] 46: Assembly protrusion (assembly part)

[0336] 47: Engagement hole (engaged portion, engagement recess)

[0337] 48: Fixing hole (fixing part)

[0338] 49: Opening

[0339] 49a: Reinforcement ribs

[0340] 50: Rear hood

[0341] 50a: rear wall

[0342] 50b: Upper wall

[0343] 50c: Side wall

[0344] 50d: Bottom wall

[0345] 51: Mounting protrusion (mounting part)

[0346] 52: Second mounting protrusion (second mounting portion)

[0347] 53: Third mounting protrusion (third mounting portion)

[0348] 54: Second wire harness installation hole (second wire harness installation portion)

[0349] 55: Locking claw (locking part)

[0350] 56: First pillar hanging clip (first pillar hanging part)

[0351] 57: Second pillar hanging clip (second pillar hanging part)

[0352] 58: Assembly hole (assembled part)

[0353] 59: Fixing hole (fixing part)

[0354] 60: Lower cover

[0355] 61: Pillar insertion hole (pillar insertion portion)

[0356] 62: Engagement hook (engagement part)

[0357] 63: Fixing protrusion (fixed part)

[0358] 70: Speaker assembly

[0359] 80: Speaker holding part

[0360] 80a: Central wall

[0361] 80b: Upper wall

[0362] 80c: Bottom wall

[0363] 80d: Side wall

[0364] 80e: Rear upper wall

[0365] 80f: Rear bottom wall

[0366] 80g: Rear side wall

[0367] 80h: Lower front wall

[0368] 80i: flange wall

[0369] 80j: Strengthen the wall

[0370] 81: Containment recess

[0371] 81a: Depression

[0372] 82: Rear storage recess

[0373] 82a: Bolt hole

[0374] 83: Cover

[0375] 83a: Bolt hole

[0376] 84: Chamfer

[0377] 85: Second cover mounting hole (second cover mounting portion)

[0378] 90: Connection

[0379] 90a: rear wall

[0380] 90b: Upper wall

[0381] 90c: front wall

[0382] 91: Cover mounting hole (cover mounting portion)

[0383] 92: Third cover mounting hole (third cover mounting portion)

[0384] 93: Wire harness guide

[0385] 94: Second wire harness guide

[0386] 95: Wire harness installation hole (wire harness installation part)

[0387] 96: Strengthening ribs

[0388] 97: Abutment rib

[0389] 97a: First abutting rib

[0390] 97b: Second abutment rib

[0391] 97c: Connecting ribs

[0392] 100: Harness

[0393] 100A, 100B

[0394] 101: Mounting clip (mounted portion)

[0395] 102: Second mounting clip (second mounted portion)

[0396] 103: Third mounting clip (second mounted portion)

[0397] 104: Wire harness guide

Claims

1. A vehicle seat, comprising: headrest; and left and right speakers, which are arranged inside the headrest, wherein the vehicle seat is characterized in that: The speaker assembly is provided inside the headrest and is used to assemble the speaker. The speaker assembly comprises: Left and right speaker holding portions are provided on the left and right side portions of the headrest to respectively hold the left and right speakers; and The connecting portion connects the left and right speaker holding portions and is formed integrally with the left and right speaker holding portions.

2. The vehicle seat according to claim 1, wherein: The speaker holding portion has a receiving recess for receiving the speaker. The speaker is accommodated in the accommodation recess in the front-rear direction of the seat and is held in a state of being exposed toward the front side of the seat.

3. The vehicle seat according to claim 2, wherein: The speaker It is received in a manner penetrating the receiving bottom surface of the receiving recess, The speaker is held in a state of being exposed from the speaker holding portion toward the front side and the rear side of the seat.

4. The vehicle seat according to claim 3, wherein: The vehicle seat further includes a wiring harness connected to the speaker. The speaker holding portion has: The receiving recess is provided in front of the speaker holding portion and receives the speaker; a rear receiving recess, provided at a rear position of the speaker holding portion, for receiving the wire harness; as well as a cover portion, covering the rear receiving recess from behind the seat, The speaker The bottom surface of the receiving recess and the bottom surface of the rear receiving recess are penetrated in the front-rear direction of the seat. The speaker is held in a state of being exposed from the speaker holding portion toward the front side and the rear side of the seat.

5. The vehicle seat according to any one of claims 1 to 4, characterized in that: The headrest also includes: a pillar supporting the main body of the headrest; and a rear cover assembled to the pillar and arranged to cover the pillar and the speaker assembly from behind the seat, The rear cover has: A pillar hooking portion, used for hooking on the pillar; and The left and right mounting parts are used to mount the speaker assembly. The pillar hook portion is disposed between the left and right mounting portions in the seat width direction.

6. The vehicle seat according to claim 5, wherein: The support hook portion is arranged at a position overlapping with the left and right mounting portions in the vertical direction. The speaker is arranged between an upper end portion of the mounting portion and a lower end portion of the connecting portion in a vertical direction.

7. The vehicle seat according to claim 1, wherein: The headrest includes a support column for supporting the main body of the headrest, The speaker assembly The left and right speaker holding portions cover the pillars from both sides in the seat width direction, and The connecting portion is arranged to cover the pillar from the seat rear side.

8. The vehicle seat according to claim 1, wherein: The headrest also includes: a pillar supporting the main body of the headrest; and a front cover assembled to the pillar and arranged to cover the pillar and the speaker assembly from the front of the seat, The front end portion of the speaker holding portion protrudes toward the front cover and is arranged so as to abut or be able to abut against a rear surface of the front cover.

9. The vehicle seat according to claim 8, wherein: The speaker holding portion includes a protruding wall portion protruding from an outer edge portion of a main body of the speaker holding portion toward the front of the seat. The protruding wall portion has: an upper wall portion protruding from an upper end portion of the main body of the speaker holding portion; as well as a bottom wall portion protruding from a lower end portion of the main body of the speaker holding portion, The respective front end portions are arranged so as to abut or be capable of abutting against the rear surface of the front cover.

10. The vehicle seat according to claim 1, wherein: The vehicle seat further includes left and right microphones disposed inside the headrest. The speaker holding portion The speaker is held so as to be exposed toward the front of the seat, and The microphone is held at a position different from the speaker so as to be exposed toward the front side of the seat.

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