Vehicle seats

Abstract

In a vehicle seat equipped with a speaker device, an opening is provided in the surface material to allow sound generated by the speaker device to pass through, and the edge of the opening is stably fixed. [Solution] The vehicle seat 1 comprises a seat body 2 having a frame 22, a pad member 11 supported by the frame, and a surface material 12 covering the outer surface of the pad member, and a speaker device 3 having a speaker box 25 and a speaker grille 26, wherein the speaker box is connected to a wire member 33 provided on the frame, the speaker grille is connected to the wire member via a mounting member 45, the surface material is provided with an opening 80 for allowing sound emitted from the speaker box to pass through, and the speaker grille is connected to the mounting member with the edge of the opening sandwiched between the speaker grille and the mounting member.

Description

Technical Field

[0001] The present invention relates to a vehicle seat.

Background Art

[0002] In order to provide an immersive acoustic experience and sounds tailored to the needs of each occupant, a speaker device may be provided in a vehicle seat.

[0003] Patent Document 1 discloses a speaker structure for a vehicle, which is composed of a speaker device having a speaker body and a speaker grill, and a seat back.

[0004] The seat back disclosed in Patent Document 1 has a seat pad and a seat cover that covers the seat pad. The seat pad is provided with a through hole that penetrates front and back. The speaker body is disposed behind the through hole, and the speaker grill is installed inside the through hole so as to seal the through hole. The periphery of the speaker grill is pressed against the seat pad portion that forms the inner wall of the through hole through the corresponding seat cover portion. Thereby, it is possible to prevent a gap from occurring between the speaker grill and the seat pad.

[0005] Patent Document 2 discloses a vehicle seat provided with a seat back in which a speaker is installed inside.

[0006] The seat back disclosed in Patent Document 2 has a pad member made of soft urethane and a skin provided on the outer surface thereof. The pad member is provided with an opening that penetrates front and back, similar to Patent Document 1, and a speaker is installed behind the opening. The skin is provided with a hole corresponding to the opening, and an annular elastic member made of relatively hard urethane is provided at the edge thereof. The elastic member is fitted into the inner wall of the opening, and the speaker grill is fitted into the elastic member to cover the opening.

Prior Art Documents

Patent Documents

[0007] [Patent Document 1] Japanese Patent Publication No. 2021-23463 [Patent Document 2] Patent No. 7040317 [Overview of the Initiative] [Problems that the invention aims to solve]

[0008] As disclosed in Patent Documents 1 and 2, when holes are made in a surface material, the edges defining the holes in the surface material may peel off. Therefore, there is a need for the development of a technology to stably fix the edges of a surface material when holes are made in it.

[0009] In view of the above background, the present invention aims to provide a vehicle seat equipped with a speaker device, which has an opening in the surface material that allows sound generated by the speaker device to pass through, and which also has the edge of the opening fixed stably. [Means for solving the problem]

[0010] To solve the above problems, one aspect of the present invention provides a vehicle seat (1) comprising: a seat body (2) having a frame (22), a pad member (11) supported by the frame, and a surface material (12) covering the outer surface of the pad member; and a speaker device (3) having a speaker box (25) and a speaker grille (26), wherein the speaker box is coupled to a wire member (33) provided on the frame, the speaker grille is coupled to the wire member via a mounting member (45), the surface material is provided with an opening (80) for allowing sound emitted from the speaker box to pass through, and the speaker grille is coupled to the mounting member with the edge of the opening sandwiched between the speaker grille and the mounting member.

[0011] In this embodiment, the edge of the opening in the outer material is sandwiched between the speaker grille and the mounting member. Therefore, an opening is provided in the outer material to allow sound generated by the speaker device to pass through, and the edge of the opening can be stably fixed.

[0012] In the above embodiment, preferably, one of the speaker grille and the mounting member is provided with a locking portion (66, 66A) that protrudes toward the other, the other of the speaker grille and the mounting member is provided with a locked portion (68, 68A) that is locked to the locking portion protruding from the one, and the surface material is provided with a locking hole (82) for passing the locking portion.

[0013] According to this embodiment, it is possible to prevent the surface material from separating from the speaker grille and the mounting member.

[0014] In the above embodiment, preferably, one of the speaker grille and the mounting member is provided with a locking portion (66, 68B) that protrudes toward the other, and the other of the speaker grille and the mounting member is provided with a locked portion (68, 68B) that is locked to the locking portion protruding from the one, and the locking portion passes through the opening.

[0015] According to this embodiment, it is possible to prevent the surface material from separating from the speaker grille and the mounting member.

[0016] In the above embodiment, preferably, the surface material is provided with a reinforcing portion (88) that extends along the edge of the opening.

[0017] According to this embodiment, the edges can be reinforced.

[0018] In the above embodiment, preferably, the reinforcing portion protrudes from the back surface of the surface material, and the mounting member is provided with a receiving recess (52) for receiving the reinforcing portion.

[0019] According to this aspect, by receiving the reinforcing part in the receiving recess, the skin material can be arranged at an appropriate position.

[0020] In the above aspect, preferably, a notch (86) cut outward is provided at the edge of the opening, the locking part passes through the notch and engages with the locked part, and the reinforcing part is provided at a position avoiding the notch.

[0021] According to this aspect, the locking part and the locked part can be easily engaged.

[0022] In the above aspect, preferably, a central hole is provided in the mounting member, and a support piece (54) extending inward is provided at the edge of the central hole.

[0023] According to this aspect, while reducing the weight of the mounting member, it is possible to prevent the skin material from loosening.

[0024] In the above aspect, preferably, two speaker bodies (28) are provided in the speaker box, the mounting member has two through holes (48) arranged at intervals in the left - right direction and a central hole (50) arranged at the center of the through holes, the through holes are respectively arranged at positions overlapping the corresponding speaker bodies, and support pieces (54) extending in directions approaching each other are provided at the left and right edges of the central hole respectively.

[0025] According to this aspect, while reducing the weight of the mounting member, it is possible to preferably prevent the skin material from loosening.

[0026] In the above aspect, preferably, at least one latching hole (78) is provided in the skin material, a latching part (84) for latching the latching hole is provided in the mounting member, and a tongue piece part (76) for an operator to grip when latching the latching hole to the latching part is provided in the skin material.

[0027] According to this embodiment, the tongue portion can be used to connect the surface material and the mounting member.

[0028] In the above embodiment, preferably, the tongue portion is formed by folding the outer material back to the back side at its upper edge and sewing it, forming a bag shape that opens on both sides.

[0029] According to this embodiment, the tongue portion can be used to easily connect the surface material and the mounting member.

[0030] In the above embodiment, preferably, the frame includes a seat back frame (10) that forms the skeleton of the seat back and a headrest stay (21) coupled to the upper part of the seat back frame, the wire member is coupled to the headrest stay and the mounting member is fixed to the wire member.

[0031] According to this embodiment, the mounting member can be connected to the frame with a simple configuration.

[0032] In the above embodiment, preferably, the frame comprises a seat back frame (10) that forms the skeleton of the seat back, and a headrest stay (21) extending upward from the upper end of the seat back frame, and an airbag module (18) equipped with an airbag that deploys forward is provided at the lower part of the seat back frame, and the mounting member is connected to the headrest stay.

[0033] According to this embodiment, the speaker device can be installed in a position that does not obstruct the deployment of the airbag. [Effects of the Invention]

[0034] One aspect of the present invention is a vehicle seat (1) comprising a seat body (2) having a frame (22), a pad member (11) supported by the frame, and a surface material (12) covering the outer surface of the pad member, and a speaker device (3) having a speaker box (25) and a speaker grille (26), wherein the speaker box is coupled to a wire member (33) provided on the frame, the speaker grille is coupled to the wire member via a mounting member (45), the surface material is provided with an opening (80) for allowing sound emitted from the speaker box to pass through, and the speaker grille is coupled to the mounting member with the edge of the opening sandwiched between the speaker grille and the mounting member.

[0035] In this embodiment, the edge of the opening in the outer material is sandwiched between the speaker grille and the mounting member. Therefore, an opening is provided in the outer material to allow sound generated by the speaker device to pass through, and the edge of the opening can be stably fixed.

[0036] In the above embodiment, preferably, one of the speaker grille and the mounting member is provided with a locking portion (66, 66A) that protrudes toward the other, the other of the speaker grille and the mounting member is provided with a locked portion (68, 68A) that is locked to the locking portion protruding from the one, and the surface material is provided with a locking hole (82) for passing the locking portion.

[0037] According to this embodiment, it is possible to prevent the surface material from separating from the speaker grille and the mounting member.

[0038] In the above embodiment, preferably, one of the speaker grille and the mounting member is provided with a locking portion (66, 68B) that protrudes toward the other, and the other of the speaker grille and the mounting member is provided with a locked portion (68, 68B) that is locked to the locking portion protruding from the one, and the locking portion passes through the opening.

[0039] According to this embodiment, it is possible to prevent the surface material from separating from the speaker grille and the mounting member.

[0040] In the above embodiment, preferably, the surface material is provided with a reinforcing portion (88) that extends along the edge of the opening.

[0041] According to this embodiment, the edges can be reinforced.

[0042] In the above embodiment, preferably, the reinforcing portion protrudes from the back surface of the surface material, and the mounting member is provided with a receiving recess (52) for receiving the reinforcing portion.

[0043] According to this embodiment, the surface material can be positioned appropriately by receiving the reinforcing portion in the receiving recess.

[0044] In the above embodiment, preferably, the edge of the opening is provided with an outwardly cut-out notch (86), the locking portion passes through the notch and engages with the locked portion, and the reinforcing portion is provided in a position that avoids the notch.

[0045] According to this embodiment, the locking portion and the locked portion can be easily engaged.

[0046] In the above embodiment, preferably, the mounting member is provided with a central hole, and a support piece (54) extending inward is provided on the edge of the central hole.

[0047] According to this embodiment, it is possible to reduce the weight of the mounting member while preventing sagging of the surface material.

[0048] In the above embodiment, preferably, the speaker box is provided with two speaker bodies (28), the mounting member has two through holes (48) spaced apart to the left and right, and a central hole (50) located in the center of the through holes, each of the through holes being positioned to overlap the corresponding speaker body, and the left and right edges of the central hole are each provided with support pieces (54) extending in directions toward each other.

[0049] According to this embodiment, it is possible to reduce the weight of the mounting member while effectively preventing sagging of the surface material.

[0050] In the above embodiment, preferably, the surface material is provided with at least one latching hole (78), the mounting member is provided with a latching portion (84) into which the latching hole is latched, and the surface material is provided with a tongue portion (76) for the worker to grip when latching the latching hole to the latching portion.

[0051] According to this embodiment, the tongue portion can be used to connect the surface material and the mounting member.

[0052] In the above embodiment, preferably, the tongue portion is formed by folding the outer material back to the back side at its upper edge and sewing it, forming a bag shape that opens on both sides.

[0053] According to this embodiment, the tongue portion can be used to easily connect the surface material and the mounting member.

[0054] In the above embodiment, preferably, the frame includes a seat back frame (10) that forms the skeleton of the seat back and a headrest stay (21) coupled to the upper part of the seat back frame, the wire member is coupled to the headrest stay and the mounting member is fixed to the wire member.

[0055] According to this embodiment, the mounting member can be connected to the frame with a simple configuration.

[0056] In the above embodiment, preferably, the frame comprises a seat back frame (10) that forms the skeleton of the seat back, and a headrest stay (21) extending upward from the upper end of the seat back frame, and an airbag module (18) equipped with an airbag that deploys forward is provided at the lower part of the seat back frame, and the mounting member is connected to the headrest stay.

[0057] According to this embodiment, the speaker device can be installed in a position that does not obstruct the deployment of the airbag. [Brief explanation of the drawing]

[0058] [Figure 1] Perspective view of a vehicle seat [Figure 2] Perspective view showing the upper half of the seat frame and part of the support member. [Figure 3] Exploded perspective view of the upper part of a vehicle seat. [Figure 4] Perspective view showing the upper part of a vehicle seat with the speaker grille, upholstery, and mounting components removed. [Figure 5] VV section diagram in Figure 1 [Figure 6] (A) Front view and (B) Rear view of the rear grille [Figure 7] (A) Front view and (B) Rear view of the mounting member [Figure 8] (A) A rear view showing the connection between the mounting member and the first wire member, and (B) An explanatory diagram illustrating the connection between the mounting member and the first wire member in the area enclosed by the dashed line in Figure 8(A). [Figure 9] Rear view showing the state when the speaker grille is attached to the mounting member. [Figure 10] Perspective view showing the upper back panel removed. [Figure 11] Reverse side view of the surface material [Figure 12] Upper rear view of a modified vehicle seat [Figure 13](A) A perspective view showing the modified first bracket and the upper half of the frame on which the first bracket is provided, and (B) An enlarged view of portion XIIIB of Figure 13(A). [Modes for carrying out the invention]

[0059] The following describes embodiments of the vehicle seat according to the present invention applied to a vehicle seat installed in a vehicle such as an automobile, with reference to the drawings. For the sake of explanation, the directions of up and down, front and back, and left and right will be defined based on the direction of a person seated in the vehicle seat. However, the present invention is not limited to these directions.

[0060] As shown in Figure 1, the vehicle equipped with the passenger seat 1 has two rows of seats, front and rear. The passenger seat 1 is the front seat, located to the side of the driver's seat.

[0061] However, the vehicles to which the vehicle seat 1 is applied are not limited to vehicles equipped with two rows of seats, front and rear. For example, the vehicle seat 1 may be applied to a vehicle equipped with three rows of seats, front and rear, and may constitute the front seat located in the front row.

[0062] The vehicle seat 1 comprises a seat body 2 and a speaker device 3. The seat body 2 includes a seat cushion 5 placed on the floor 4, a seat back 6 connected to the rear of the seat cushion 5, and a headrest 7 provided on the upper part of the seat back 6.

[0063] The speaker device 3 is built into the upper part of the seat body 2. By positioning the speaker device 3 on the upper part of the seat back 6, it can be placed close to the occupant's ears. This makes it possible to provide each occupant of the vehicle seat 1 with an immersive sound experience, as well as music and audio content tailored to their preferences.

[0064] In addition, a display 8 for rear-seat occupants is provided on the back of the vehicle seat 1.

[0065] Next, we will describe the details of the upper structure of the seat body 2 and the details of the configuration of the speaker device 3.

[0066] As shown in Figure 1, the upper part of the seat body 2 is composed of a seat back 6 and a headrest 7. The seat back 6 has a seat back frame 10 (see Figure 2) that forms the skeleton, a pad member 11 supported by the seat back frame 10, and a surface material 12 that covers the outer surface of the pad member 11. Note that in Figure 1, a portion of the upper right of the surface material 12 of the seat back 6 is shown peeled off to show the internal structure of the seat back 6.

[0067] The seat back frame 10 includes a pair of left and right side members 15 that extend vertically, an upper frame 16 that extends horizontally and connects the upper parts of the left and right side members 15, and a lower frame (not shown) that extends horizontally and connects the lower parts of the left and right side members 15.

[0068] The lower ends of the left and right side members 15 are preferably connected to a frame (not shown) that forms the skeleton of the seat cushion 5 via a reclining mechanism (not shown). An airbag module 18 is provided at the lower part of at least one of the left and right side members 15. The airbag module 18 houses an airbag (not shown) that deploys forward. In this embodiment, as shown in Figures 1 and 2, the airbag module 18 is connected to the left side of the left side member 15.

[0069] The headrest 7 has a headrest body 20 (see Figure 1). The headrest body 20 is connected to the seat back frame 10 via a headrest stay (hereinafter referred to as stay 21; see Figure 2).

[0070] The headrest body 20 is roughly rectangular in shape and is positioned behind the head of the seated person. The headrest body 20 may include a cushioning pad member (not shown) and a surface material (not shown) that covers the front surface of the pad member.

[0071] As shown in Figure 2, the stay 21 is made of a bent and deformed metal round pipe. The stay 21 comprises a pair of left and right vertical sections 21A and a horizontal section 21B connecting the upper ends of the left and right vertical sections 21A. Each of the vertical sections 21A extends substantially in the vertical direction. The vertical sections 21A are connected to the upper frame 16 at their lower parts. As a result, the stay 21 is coupled to the upper part of the seat back frame 10 and supported by the seat back frame 10. The stay 21 may be directly fixed to the seat back frame 10 by welding or the like, or it may be coupled to the seat back frame 10 via a cylindrical pillar guide (not shown).

[0072] The headrest body 20 is connected to the upper part of the stay 21 and is supported by the upper frame 16 via the stay 21. The stay 21 and the seat back frame 10 work together to form the upper half of the seat frame 22, which forms the skeleton above the seat body 2. The lower part of the stay 21, i.e., the lower half of the vertical part 21A, constitutes the headrest pillar that connects the headrest body 20 to the seat back frame 10.

[0073] As shown in Figure 3, the speaker device 3 includes a speaker box 25 and a speaker grille 26.

[0074] As shown in Figure 4, the speaker box 25 has two speaker bodies 28 (also called speaker drivers) and a housing 29. Each speaker body 28 includes a compression driver 28A as a sound source that generates sound and a roughly frustoconical horn 28B. The housing 29 includes a front member 29A that forms the front half and a rear member 29B that forms the rear half. The front member 29A and the rear member 29B are joined together to form a sealed internal space (cavity).

[0075] The front surface of the front member 29A is provided with two mounting holes (not shown) for housing the speaker body 28. The speaker body 28 is arranged so that each horn 28B opens forward and is housed in the mounting holes. The protruding ends of the horns 28B are connected to flanges 28C that extend radially outward, and the speaker body 28 is connected to the speaker box 25 by fastening the flanges 28C to the front member 29A. However, the speaker body 28 and the speaker box 25 may be connected by methods other than fastening (such as adhesive).

[0076] The stay 21 is provided with a support member 31 for supporting the speaker box 25. The support member 31 is made of a metal material and constitutes part of the seat frame 22 that forms the skeleton of the upper half of the seat body 2.

[0077] The support member 31 includes a pair of left and right first brackets 32 (see also Figure 2), a first wire member 33 (see also Figure 2), a second wire member 35, and a second bracket 36.

[0078] As shown in Figure 2, each first bracket 32 ​​is connected to the vertical portion 21A of the stay 21. The first bracket 32 ​​includes a lateral extension portion 32A that is connected to the vertical portion 21A and extends outward to the left and right, and a forward extension portion 32B that extends forward from the upper edge of the lateral extension portion 32A.

[0079] The first wire member 33 is made of a bent and deformed metal rod-shaped member or pipe material. The first wire member 33 may be made of, for example, a round bar or a round pipe.

[0080] The first wire member 33 comprises a pair of upper frames 33A arranged spaced apart to the left and right and each extending in the left-right direction, a pair of left and right side frames 33B extending forward and downward from the left and right edges of the upper frames 33A, and a lower frame 33C extending left and right and connecting the lower ends of the side frames 33B. Each side frame 33B is provided with a bent portion 33D that bends outward to the left and right. As a result, the first wire member 33 has a hexagonal frame shape when viewed from the front. The first wire member 33 is fixed to the stay 21 by the upper frame 33A being connected to the forward extension portion 32B.

[0081] As shown in Figure 4, the second wire member 35 is also made of a bent and deformed metal rod-shaped member or pipe material. The second wire member 35 may be made of, for example, a round bar or round pipe.

[0082] The second wire member 35 comprises a pair of left and right vertical frames 35A that are connected to the lower frame 33C and extend upward and rearward, and horizontal frames 35B that extend to the left and right and connect the upper ends of the vertical frames 35A.

[0083] The second bracket 36 is made of a bent and deformed metal plate. The second bracket 36 comprises a first plate portion 36A which is connected to the horizontal frame 35B on its main surface, and a second plate portion 36B which extends upward from the upper edge of the first plate portion 36A and has a main surface facing substantially forward.

[0084] The speaker box 25 is positioned at its lower front end so as to be in contact with the rear surface of the second plate portion 36B from the rear, and is coupled (fastened in this embodiment) to the rear surface of the second plate portion 36B. As a result, the speaker box 25, including the speaker body 28, is coupled to the stay 21 via the support member 31 and supported by the seat back frame 10.

[0085] The speaker grille 26 covers the front of the speaker box 25 and protects the speaker body 28.

[0086] As shown in Figures 3 and 5, the speaker grille 26 comprises a front grille 41 and a rear grille 42.

[0087] As shown in Figure 3, the front grille 41 is a flat plate shape that extends in the left-right direction when viewed from the front. The front grille 41 may comprise a roughly rectangular plate-shaped grille frame portion 41A and a cover portion 41B stretched across the inside of the grille frame portion 41A. The grille frame portion 41A may be made of metal or resin such as plastic, and the cover portion 41B may be made of a cloth or the like that allows sound emitted from the speaker box 25 to pass through. It is preferable that the cloth constituting the cover portion 41B is made up of a mesh. The front grille 41 may also be made of a resin plate from which the grille frame portion 41A and the cover portion 41B are integrally molded.

[0088] The rear grille 42 is also made of resin such as plastic. As shown in Figures 6(A) and 6(B), the rear grille 42 has a surface facing in the front-rear direction and has a substantially flat grille body 42A to which the front grille 41 is connected to the front.

[0089] The grille body 42A is formed in a roughly flat shape and, when viewed from the front, has a roughly rectangular plate shape extending left and right. The grille body 42A is preferably configured to be larger in the vertical, horizontal, and vertical directions than the front of the speaker box 25 when viewed from the front. The grille body 42A is positioned in front of the speaker body 28.

[0090] The grille body 42A has multiple hexagonal holes 42B that penetrate in the thickness direction in front of the speaker body 28. The hexagonal holes 42B are arranged in a hexagonal grid pattern, and a honeycomb structure (42C) is formed in the portion of the grille body 42A located in front of the speaker body 28. This honeycomb structure 42C allows the speaker grille 26 to have sufficient rigidity while effectively transmitting sound generated from the speaker body 28 to the seated person.

[0091] The edge of the grill body 42A is formed with a series of connecting holes 42D that penetrate in the front-to-back direction. The rear surface of the grill frame 41A is provided with connecting claws 41C that engage with the connecting holes 42D along the outer edge (see Figure 3). In this embodiment, the connecting claws 41C are provided on the rear surface of the grill frame 41A and protrude to the rear. When the connecting claws 41C protrude into and engage with the connecting holes 42D, the front grill 41 is connected to the front surface of the grill body 42A of the rear grill 42.

[0092] As shown in Figure 3, the speaker grille 26 is connected to the stay 21 via the mounting member 45. The mounting member 45 will be described first below.

[0093] As shown in Figures 7(A) and 7(B), the mounting member 45 is made of a resin such as plastic. The mounting member 45 has a plate-shaped main portion 46 having a main surface facing in the front-rear direction, and a fixing portion 47 that extends rearward from the main portion 46 and engages with the first wire member 33.

[0094] The main section 46 is a roughly rectangular plate shape extending to the left and right. The main section 46 is roughly the same shape as the grill body 42A of the speaker grill 26, and is configured to be slightly larger than the grill body 42A in the vertical, horizontal, and vertical directions. The main section 46 is positioned in front of the speaker body 28 and behind the grill body 42A of the speaker grill 26. The main section 46 is positioned behind the grill body 42A and in front of the speaker box 25.

[0095] The main section 46 is provided with two through holes 48 arranged side by side, and a central hole 50 located in the center of the two through holes 48.

[0096] The through-holes 48 are approximately circular through-holes that penetrate the main section 46 in the front-to-back direction. Each through-hole 48 is located in front of the speaker body 28. The upper, lower, and left edges of the through-hole 48 located on the left side are located near the upper, lower, and left edges of the main section 46, respectively. The upper, lower, and left edges of the through-hole 48 located on the right side are located near the upper, lower, and right edges of the main section 46, respectively (see also Figure 3).

[0097] Each of the through-holes 48 is provided with a projecting wall 48A (see also Figures 5 and 8) that protrudes backward from its lower edge. As shown in Figure 8, the projecting wall 48A is a vertical wall that extends along the lower edge of the through-hole 48.

[0098] As shown in Figures 7(A) and 7(B), the central hole 50 is a roughly rectangular hole that penetrates the main part 46 in the front-to-back direction and is located approximately in the center of the two through holes 48. The central hole 50 is provided to reduce the weight of the mounting member 45 and may be formed as a weight-reducing hole.

[0099] As shown in Figure 7(A), the front surface of the main portion 46 is provided with two receiving recesses 52 that are recessed to the rear. Each receiving recess 52 extends circumferentially along the outer circumference of the through hole 48. Preferably, the receiving recesses 52 extend around the entire outer circumference of the through hole 48. In this embodiment, the receiving recesses 52 are in contact with the central hole 50 at their left and right inner edges. However, the embodiment is not limited to this configuration, and a gap may be provided between the receiving recesses 52 and the central hole 50.

[0100] A support piece 54 is provided on the edge of the central hole 50, extending inward from the central hole 50. The support piece 54 is plate-shaped and has a surface facing the same direction as the main part 46. In this embodiment, the support pieces 54 are provided on the left edge and the right edge of the central hole 50, respectively. The support piece 54 provided on the left edge and the support piece 54 provided on the right edge are positioned to be aligned in the vertical direction. The support piece 54 provided on the left edge extends to the right, and the support piece 54 provided on the right edge extends to the left. That is, the two support pieces 54 extend in directions toward each other.

[0101] As shown in Figure 7(B), the fixing portion 47 includes an upper fixing portion 47A provided on the upper rear surface of the main portion 46 and a lower fixing portion 47B provided on the lower rear surface of the main portion 46. In this embodiment, two upper fixing portions 47A are arranged side by side on the left and right of the rear surface of the main portion 46, and four lower fixing portions 47B are arranged side by side on the left and right.

[0102] As shown in Figure 8, each upper fixing portion 47A includes an upper base portion 47C that protrudes rearward from the upper rear surface of the main portion 46, and a locking claw 47D that protrudes upward from the tip of the upper base portion 47C. The upper fixing portion 47A is hooked onto the first wire member 33 from below by the locking claw 47D being locked onto the upper frame 33A of the first wire member 33.

[0103] Each lower fixing portion 47B includes a lower base portion 47E that protrudes rearward from the lower rear surface of the main portion 46, and a hooking recess 47F that recesses upward from the lower edge of the lower base portion 47E. The lower fixing portion 47B is hooked onto the lower frame 33C of the first wire member 33 from above when the lower frame 33C of the first wire member 33 is received by the hooking recess 47F.

[0104] As shown in Figure 9, the mounting member 45 is fixed to the first wire member 33 by the upper fixing portion 47A and the lower fixing portion 47B engaging with the first wire member 33, respectively. In this way, the mounting member 45 is fixed to the stay 21 via the first wire member 33. By providing the first wire member 33 on the stay 21 in this manner, the mounting member 45 can be easily attached to the stay 21.

[0105] As shown in Figure 5, the protruding wall 48A extends above the first wire member 33 to the rear of the lower frame 33C of the first wire member 33. In part, the protruding wall 48A may be in contact with the lower edge of the speaker body 28.

[0106] As shown in Figure 8(A), the mounting member 45 is preferably provided with a cylindrical portion 56 that extends rearward from the periphery of the main portion 46. As shown in Figure 5, the cylindrical portion 56 covers the speaker box 25 from the top, bottom, left, and right directions, protecting the speaker box 25.

[0107] As shown in Figure 10, in this embodiment, a resin panel 58 is assembled to the upper part of the stay 21. The panel 58 is provided with a panel locking claw 60 that protrudes downward. The upper part of the cylindrical portion 56 is provided with a cylindrical portion locking hole 62 that penetrates in the thickness direction at a position that aligns with the panel locking claw 60. The panel locking claw 60 protruding into the cylindrical portion locking hole 62 also prevents the mounting member 45 from detaching from the stay 21.

[0108] As shown in Figure 8(A), the speaker grille 26 and the mounting member 45 are connected via a locking structure 64. The locking structure 64 includes a locking portion 66 provided on the speaker grille 26 and a locked portion 68 provided on the mounting member 45. The locking portion 66 protrudes from the speaker grille 26 toward the mounting member 45 and engages with the locked portion 68 provided on the mounting member 45.

[0109] The locking portion 66 is provided on the grill body 42A of the rear grill 42. The locking portion 66 includes a first locking portion 66A provided on the upper and lower rear edges of the grill body 42A, and a second locking portion 66B provided on the left and right rear edges of the grill body 42A.

[0110] The locking portion 68 is provided on the main portion 46 of the mounting member 45. The locking portion 68 includes a first locking portion 68A that engages with the first locking portion 66A and a second locking portion 68B that engages with the second locking portion 66B.

[0111] The first locking portions 66A are arranged in a line of three equal intervals in the left-right direction on the upper and lower edges of the main portion 46. The first locked portion 68A is provided on the grill body 42A at a position corresponding to the first locking portions 66A. In this embodiment, the first locking portion 66A is composed of a locking claw that protrudes rearward from the rear surface of the grill body 42A, and the first locked portion 68A is composed of a locking hole that penetrates the main portion 46. The first locking portion 66A is locked to the first locked portion 68A when the locking claw protrudes into the locking hole and catches on the edge that defines the locking hole.

[0112] Each of the second locking portions 66B protrudes rearward and passes near the edge of the through hole 48 of the mounting member 45. As shown in Figures 8(A) and 8(B), each of the second locking portions 66B has a main surface facing left to right and includes a flat inner piece 66C extending rearward and a locking recess 66D that is recessed at the tip of the outer surface of the inner piece 66C.

[0113] The second locking portion 68B is provided on the edge of the through hole 48. As shown in Figures 8(A) and 8(B), the second locking portion 68B comprises an outer piece 68C that protrudes rearward along the outer surface of the inner piece 66C, and a locking projection 68D provided at the tip of the outer piece 68C that protrudes into the locking recess 66D. The outer piece 68C and the inner piece 66C are joined when the locking projection 68D protrudes into the locking recess 66D. As a result, the left and right second locking portions 68B are locked to their respective second locking portions 66B.

[0114] As shown in Figure 8(A), the first locking portion 66A and the first locked portion 68A engage, and the second locking portion 66B engages with the second locked portion 68B, thereby connecting the speaker grille 26 to the mounting member 45 at its four edges (top, bottom, left, and right). As shown in Figure 9, the mounting member 45 is connected to the first wire member 33, so the speaker grille 26 is connected to the stay 21 via the mounting member 45. As a result, the speaker grille 26 is supported by the stay 21 at the front of the speaker box 25.

[0115] The front grille 41 is fixed to the mounting member 45 via the rear grille 42. In other words, the rear grille 42 functions as a fixing member for fixing the front grille 41 to the mounting member 45.

[0116] As shown in Figure 1, the speaker device 3 is fitted into the upper part of the seat back 6. The pad member 11 is positioned to cover the front and left and right sides of the seat back frame 10.

[0117] Figure 11 schematically shows the back surface of the surface material 12 provided on the upper part of the seat back 6. The surface material 12 is made of a sheet-like material such as cloth or leather. The surface material 12 comprises a lower surface 72 that covers the outer surface of the pad member 11 and an upper surface 74 that is coupled to the upper edge of the lower surface 72. The lower surface 72 is positioned so as to be in contact with the front surface of the pad member 11 on its back surface, and the upper surface 74 is positioned so as to cover the speaker device 3 (more specifically, the speaker grille 26).

[0118] The upper skin 74 includes a tongue portion 76, a latching hole 78 provided near the tongue portion 76, two openings 80 that are shaped to match the speaker body 28, and a plurality of locking holes 82 provided between the two openings 80.

[0119] The tongue portion 76 is located at the edge of the upper epidermis 74. More specifically, the tongue portion 76 is located at the edge of the upper epidermis 74 that is away from the lower epidermis 72. The tongue portion 76 is formed by folding back a band-shaped portion provided at the edge of the upper epidermis 74 and sewing it to form a bag-like structure. Thus, the tongue portion 76 can also be described as a bag-shaped sewn portion.

[0120] In this embodiment, the band-shaped portion of the upper epidermis 74 is folded back to the reverse side at approximately the center, and the edges are sutured together to form a sutured portion 74A (see Figure 11). As a result, the tongue portion 76 is configured to form a pouch-like shape that opens to the left and right.

[0121] The latching holes 78 are holes that penetrate the upper epidermis 74. In this embodiment, two latching holes 78 are arranged side by side on the lower epidermis 72 side of the tongue portion 76.

[0122] The upper rear edge of the cylindrical portion 56 is provided with two latching portions 84 that protrude rearward. The upper surface 74 is connected to the mounting member 45 at the top by the latching holes 78 being latched onto the latching portions 84. This allows the surface material 12 and the mounting member 45 to be connected.

[0123] Each edge of the opening 80 is provided with an outwardly cut-out notch 86. In this embodiment, the notches 86 are provided on the left edge of the left opening 80 and on the right edge of the right opening 80.

[0124] The outer material 12 is provided with a reinforcing portion 88 that extends along the edge of the opening 80. The reinforcing portion 88 is preferably formed by joining a rigid member 12B, which is rigider than the fabric member 12A, to the fabric member 12A that constitutes the outer material 12. In this embodiment, the rigid member 12B is made up of a trim cord that extends along the edge of the opening 80, and the reinforcing portion 88 is formed by sewing the trim cord to the back surface (i.e., rear surface) of the fabric member 12A. In Figure 11, the sewing location between the rigid member 12B (trim cord) and the fabric member 12A is shown by a dashed line. In this way, when the reinforcing portion 88 is formed by joining a rigid material to the back surface of the fabric member 12A, the reinforcing portion 88 protrudes from the back surface of the fabric member 12A. By providing the reinforcing portion 88 along the edge of the opening 80, the edge of the opening 80 can be reinforced.

[0125] In this embodiment, the reinforcing portion 88 is positioned to avoid the notch 86 provided on the edge of the opening 80. Specifically, the reinforcing portion 88 extends from near the upper end of the notch 86 along the edge of the opening 80 to near the lower end of the notch 86.

[0126] The locking holes 82 are arranged in a row, one above the other. Each of the upper and lower rows has three locking holes 82. The locking holes 82 in each row are arranged at equal intervals in the left-right direction.

[0127] The outer material 12 is positioned such that the opening 80 overlaps the through hole 48, and the locking hole 82 overlaps the first locked portion 68A from the front. The speaker grille 26 is connected to the mounting member 45 by the first locking portion 66A passing through the locking hole 82 and being locked to the first locked portion 68A (see Figure 5), and the second locking portion 66B passing through the notch 86 and being locked to the second locked portion 68B. At this time, as can be seen from Figures 3 and 5, the outer material 12 is sandwiched between the speaker grille 26 and the mounting member 45 at the edge of the opening 80 and the portion between the two openings 80, respectively. The reinforcing portion 88 of the outer material 12 is housed in the receiving recess 52, and its movement in the direction along the main portion 46 of the mounting member 45 is restricted.

[0128] The speaker unit 28 needs to be supplied with signals and other information to generate sound. Therefore, the vehicle seat 1 is provided with a wiring structure 100 for connecting the speaker unit 28 and a control device (not shown) for controlling the output of the speaker unit 28.

[0129] Figure 12 shows a rear view of the upper part of a modified vehicle seat 1, which has a similar configuration to the vehicle seat 1 shown in Figure 4. In Figure 4, for simplification, only the seat back frame 10, stay 21, speaker box 25, and wiring structure 100 are shown.

[0130] As shown in Figure 12, the vehicle seat 1 has a pair of left and right side members 15 spaced apart from each other, and an upper frame 16 (also called an upper member) connecting the upper parts of the left and right side members 15, similar to the case shown in Figure 4. In the example shown in Figure 12, the upper frame 16 is plate-shaped with a surface facing approximately in the front-to-back direction. The lower part of the upper frame 16, specifically the left and right central portions, is provided with bulging portions 16A that bulge toward the rear.

[0131] A stay 21, similar to that in Figure 4, is provided on the upper part of the upper frame 16. The speaker box 25 is connected to the stay 21.

[0132] The speaker box 25 has two speaker bodies 28 and a housing 29. The housing 29 is constructed by joining a front member 29A and a rear member 29B, as in Figure 4, and has a sealed internal space inside.

[0133] As shown in Figure 12, the housing 29 comprises an upper housing section 29C that forms its upper part and extends in the left-right direction, and a pair of lower housing sections 29D that form its lower part and extend downward from the left and right edges of the upper housing section 29C. The housing 29 has a roughly U-shape when viewed from the front. The internal space is formed to span both the upper housing section 29C and the two lower housing sections 29D.

[0134] The upper part 29C of the housing is provided with through holes 29E spaced apart on the left and right sides. Each speaker body 28 is connected to the housing 29 at a position aligned with the through holes 29E. The lower part 29D of the housing extends along the rear surface of the upper frame 16 on the left and right sides of the bulging portion 16A and reaches below the lower edge of the upper frame 16.

[0135] The wiring structure 100 includes a first harness 101 provided on the control device side, and two second harnesses 102 that are connected at one end to the end of the first harness 101 and at the other end to the corresponding speaker body 28.

[0136] The first harness 101 extends upward along one of the left or right side members 15, and is equipped with a branch coupler 103, which is a connector, at its extended end. The first harness 101 may be fixed at its extended end to the rear surface of the upper frame 16 by a fixing member (not shown) such as a clip. The first harness 101 may also be fixed to the outer surface of the lower part 29D of the housing, on the inner side of the seat, by a fixing member 106 such as a clip.

[0137] The second harness 102 includes an outer harness 107 extending from the first harness 101 to the outer surface of the lower part of the housing 29D, and an inner harness 108 extending from the outer surface of the lower part of the housing 29D to the speaker body 28.

[0138] Each outer harness 107 is equipped with an outer first coupler 109 at one end. The outer first coupler 109 is a connector and is connected to a branch coupler 103. As a result, the first harness 101 is branched into two outer harnesses 107 at the branch coupler 103. Each outer harness 107 extends along the back of the upper frame 16 and reaches the inner side of the lower housing 29D. In this embodiment, the outer harness 107 further extends downward along the inner side of the lower housing 29D. Each outer harness 107 is equipped with an outer second coupler 110 at the other end.

[0139] The inner harness 108 is equipped with an inner coupler 112 at one end. The inner coupler 112 is a connector that is connected to the outer second coupler 110. The inner coupler 112 is fixed to the inner side of the sheet on the outer surface of the lower housing 29D. The inner harness 108 may also be fixed to the lower housing 29D near one end by a fixing member such as a clip. Alternatively, instead of the inner coupler 112, the outer second coupler 110 may be fixed to the inner side of the sheet on the outer surface of the lower housing 29D.

[0140] The inner coupler 112 may be located below the upper frame 16 when viewed in the front-rear direction. However, the inner coupler 112 may overlap the lower edge of the upper frame 16 when viewed in the front-rear direction. When the first harness 101 is fixed by the fixing member 106, the fixing member 106 may be located below the upper frame 16 when viewed in the front-rear direction. The inner harness 108 extends from the inner coupler 112 to the internal space through a through hole (not shown) provided in the lower part 29D of the housing, and is connected to the speaker body 28 at the other end.

[0141] This creates a path (see arrow in Figure 12) through the first harness 101 and the second harness 102 to supply signals and power to the speaker body 28.

[0142] Next, a method for manufacturing the vehicle seat 1 will be described. The method for manufacturing the vehicle seat 1 includes the steps of preparing a seat frame 22 including a stay 21, connecting a support member 31 to the stay 21, assembling a pad member 11 and a surface material 12 to the seat frame 22, attaching a speaker box 25 and a mounting member 45 to the support member 31, hooking the hooking holes 78 of the surface material 12 to the hooking portions 84 of the mounting member 45, and connecting the speaker grille 26 to the mounting member 45 while sandwiching the surface material 12.

[0143] In the step of hooking the locking hole 78 onto the locking part 84, the worker manufacturing the vehicle seat 1 should grasp the tongue-shaped part 76 and pull it upward and backward to hook the locking hole 78 onto the locking part 84. In this way, using the tongue-shaped part 76 makes it easier to manufacture the vehicle seat 1.

[0144] In this embodiment, the tongue portion 76 is configured to be bag-shaped with openings on both sides. Therefore, the worker can easily hook the latching hole 78 onto the latching portion 84 by hooking their hands into the openings on both sides and pulling.

[0145] In this embodiment, the tongue portion 76 is configured to be a bag-like shape with openings on both sides. However, the tongue portion 76 may be configured in any way that makes it easy for the worker to grasp when the latching hole 78 is latched onto the latching portion 84. For example, in Figure 11, the tongue portion 76 was sutured at the edge on the side away from the lower epidermis 72 (in the left-right direction of the paper in Figure 11), but it may also be sutured at both the left and right edges (in the up-down direction of the paper in Figure 11). In addition, the edges of the tongue portion 76 may not have sutured portions, and instead, a resin plate or the like may be attached.

[0146] Furthermore, during the manufacture of the vehicle seat 1, the worker may connect the outer harness 107 to the first harness 101 and the inner harness 108 in order to route the speaker body 28. Since the inner coupler 112 is fixed to the outer surface of the lower housing 29D of the housing, the outer harness 107 can be easily connected to the inner harness 108 when assembling the vehicle seat 1, thereby improving the workability of assembling the vehicle seat 1. In addition, if the inner coupler 112 is located below the upper frame 16, the inner coupler 112 is less likely to be obstructed by the upper frame 16 when being viewed, thereby further improving the workability of assembling the vehicle seat 1.

[0147] Next, the effects of the vehicle seat 1 configured in this way will be explained. The edge of the opening 80 of the surface material 12 is sandwiched between the speaker grille 26 and the mounting member 45. As a result, the edge of the opening 80 is stably fixed to the seat frame 22, and it is possible to prevent the edge of the opening 80 of the surface material 12 from peeling off.

[0148] Furthermore, the locking portion 66 and the locked portion 68 are connected by passing through the locking holes 82 and openings 80 provided in the surface material 12. This prevents the surface material 12 from separating from the speaker grille 26 and the mounting member 45.

[0149] Furthermore, the reinforcing portion 88 of the surface material 12 is housed in the receiving recess 52. Therefore, the position of the surface material 12 can be accurately positioned so that the opening 80 overlaps with the through hole 48, and the surface material 12 can be placed in the appropriate position. In addition, displacement of the surface material 12 can be prevented.

[0150] A notch 86 is provided on the outer edge of the opening 80, and the second locking portion 66B extends rearward through the notch 86 and connects to the second locked portion 68B. On the other hand, the reinforcing portion 88 extends along the outer circumference of the opening 80 at a position that avoids the notch 86, and the reinforcing portion 88 is not provided in the portion of the surface material 12 near the notch 86. Therefore, when the second locking portion 66B is passed through the notch 86, the portion of the surface material 12 near the notch 86 can be easily deformed, so the second locking portion 66B and the second locked portion 68B can be easily engaged.

[0151] Support pieces 54 extending inward into the sheet are provided on both the left and right edges of the central hole 50. As shown in Figure 5, the support pieces 54 are located behind the surface material 12 (i.e., on the inside of the sheet). Therefore, by providing the support pieces 54, the rearward movement of the surface material 12 is restricted, preventing sagging of the surface material 12.

[0152] Support pieces 54 are provided on the left and right edges of the central hole 50, respectively. This restricts the rearward movement of the surface material 12 at both the left and right edges of the central hole 50, thereby effectively preventing sagging of the surface material 12.

[0153] The speaker grille 26 is attached to a mounting member 45 which is connected to a first wire member 33. That is, the speaker grille 26 is connected to the first wire member 33 via the mounting member 45. The first wire member 33 is connected to a stay 21, which is connected to the upper part of the seat back frame 10. Therefore, the speaker grille 26 is supported by the seat back frame 10 via the mounting member 45 and the first wire member 33.

[0154] The speaker box 25 is connected to the first wire member 33 via the second bracket 36. As a result, the speaker box 25 is connected to the stay 21 via the first wire member 33 without the need for a mounting member 45.

[0155] On the other hand, the airbag module 18 is attached to the lower part of the seatback frame 10. This allows the speaker grille 26 and speaker box 25 to be positioned so as not to obstruct the deployment of the airbag.

[0156] This concludes the description of specific embodiments, but the present invention is not limited to the above embodiments and can be broadly modified and implemented.

[0157] In the above embodiment, the locking portion 66 was provided so as to protrude from the rear grille 42 toward the mounting member 45, but the embodiment is not limited to this. The locking portion 66 may protrude from either the rear grille 42 or the mounting member 45 toward the other, and the locked portion 68 may be provided toward the other. In the above embodiment, the first locking portion 66A was composed of a locking claw and the first locked portion 68A was composed of a locking hole, but the first locking portion 66A may be composed of a locking hole and the first locked portion 68A may be composed of a locking claw. Similarly, the second locking portion 66B was provided with a recess and the second locked portion 68B was provided with a protrusion that enters the recess of the second locking portion 66B, but the second locking portion 66B may be provided with a protrusion and the second locked portion 68B may be provided with a recess that receives the protrusion of the second locking portion 66B.

[0158] In the above embodiment, the reinforcing portion 88 was formed by bonding a material harder than the fabric member 12A to the back side of the fabric member 12A, but it may also be formed by bonding a material harder than the fabric member 12A to the front side of the fabric member 12A. In this case, a receiving recess 52 for receiving the reinforcing portion 88 may be provided on the rear surface of the rear grille 42.

[0159] In the above embodiment, the first bracket 32 ​​was configured to include a lateral extension portion 32A and a front extension portion 32B, as shown in Figure 2, but the embodiment is not limited to this.

[0160] Figure 13(A) shows a perspective view of the first bracket 200 according to a modified example. Figure 13 also shows the stay 21 to which the first bracket 200 is attached, and the seat back frame 201 to which the stay 21 is connected.

[0161] As shown in Figure 13(A), the seat back frame 201 has a pair of left and right side members 203 formed by bending sheet metal, and an upper member 205 that connects the upper edges of the side members 203. In the example shown in Figure 13, the upper member 205 is formed by bending sheet metal into a roughly box shape and is connected to the side members 203 at its left and right edges.

[0162] In the example shown in Figure 13(A), as in the case shown in Figure 2, the stay 21 is made of a bent and deformed round metal pipe. The stay 21 comprises a pair of left and right vertical sections 21A and a horizontal section 21B that connects the upper ends of the left and right vertical sections 21A.

[0163] Each vertical section 21A is fixed to the front surface of the upper member 205 by welding at its lower part. The first bracket 200 is provided on each vertical section 21A, as shown in Figure 2. Each first bracket 200 is made of a bent sheet metal member.

[0164] As shown in Figure 13(A), the first bracket 200 comprises a plate-shaped front plate portion 211 having a surface facing in the front-rear direction, a plate-shaped horizontal portion 213 having a surface facing in the up-down direction, and a plate-shaped rear plate portion 215 having a surface facing in the front-rear direction. The front plate portion 211 is directly connected to the front surface of the vertical portion 21A and extends outward from the vertical portion 21A. The horizontal portion 213 extends rearward from the upper edge of the outer end of the front plate portion 211. The rear plate portion 215 extends downward from the rear edge of the horizontal portion 213 and further extends inward from the seat, and is directly connected to the rear surface of the vertical portion 21A.

[0165] Each front plate portion 211 is provided with a first fastening hole 221 that penetrates in the front-to-back direction. The speaker box 25 is fastened to the front plate portion 211 of the first bracket 200 at the rear surface by a first fastener 223 (such as a bolt) inserted through the first fastening hole 221.

[0166] In this embodiment, as shown in Figure 13(B), the speaker box 25 is provided with a pair of fastening portions 25A that are arranged to overlap from above on each of the horizontal portions 213. In this embodiment, the fastening portions 25A are plate-shaped with surfaces facing in the vertical direction.

[0167] Each horizontal section 213 is provided with a second fastening hole 225 that penetrates vertically. Each fastened section 25A is provided with a through hole 25B that penetrates vertically at a position aligned with the second fastening hole 225. The fastened section 25A is fastened to the horizontal section 213 by a second fastener 227 (such as a bolt) inserted through the through hole 25B and the second fastening hole 225. As a result, the speaker box 25 is fastened to the front plate section 211 of the first bracket 200 and the horizontal section 213, and is connected to the stay 21 via the first bracket 200.

[0168] In the examples shown in Figures 13(A) and 13(B), the speaker box 25 was fastened to the front plate portion 211 and the horizontal portion 213. However, the speaker box 25 may be fastened to any configuration as long as it is connected to the first bracket 200. For example, the speaker box 25 may be fastened to at least one of the front plate portion 211, the horizontal portion 213, and the rear plate portion 215. [Explanation of Symbols]

[0169] 1: Vehicle seat 2: Seat body 3: Speaker device 6: Seat back 7: Headrest 10: Seat back frame 11: Pad component 12:Skin material 18: Airbag module 21: Stay (An example of a headrest stay) 25: Speaker box 26: Speaker Grille 28: Speaker body 48:Through hole 50: Central hole 52: Receptive recess 54: Support piece 66: Locking part 68:Locked part 76: Tongue piece 78:Latching hole 80: Opening 82: Locking hole 84: Latch part 86: Notch 88: Reinforcement section

Claims

1. It is a seat for a vehicle, A seat body comprising a frame, a pad member supported by the frame, and a surface material covering the outer surface of the pad member, It has a speaker device equipped with a speaker box and a speaker grille, The speaker box is connected to a wire member provided on the frame. The speaker grille is connected to the wire member via a mounting member. The surface material is provided with openings for allowing sound emitted from the speaker box to pass through. A vehicle seat in which the speaker grill is connected to the mounting member, with the edge of the opening being sandwiched between the speaker grill and the mounting member.

2. One of the speaker grille and the mounting member is provided with a locking portion that protrudes toward the other. The speaker grille and the other mounting member are provided with a locking portion that is locked into the locking portion that protrudes from the other, The vehicle seat according to claim 1, wherein the surface material is provided with a locking hole for passing the locking portion through.

3. One of the speaker grille and the mounting member is provided with a locking portion that protrudes toward the other. The speaker grille and the other mounting member are provided with a locking portion that is locked into the locking portion that protrudes from the other, The vehicle seat according to claim 1, wherein the locking portion passes through the opening.

4. The vehicle seat according to claim 3, wherein the surface material is provided with a reinforcing portion that extends along the edge of the opening.

5. The reinforcing portion protrudes from the back surface of the surface material. The vehicle seat according to claim 4, wherein the mounting member is provided with a receiving recess for receiving the reinforcing portion.

6. The edge of the opening is provided with an outwardly cut-out portion. The locking portion passes through the notch and engages with the locked portion, The vehicle seat according to claim 4, wherein the reinforcing portion is provided in a position that avoids the notch.

7. The aforementioned mounting member is provided with a central hole. A vehicle seat according to any one of claims 1 to 6, wherein a support piece extending inward is provided at the edge of the central hole.

8. The speaker box is provided with two speaker units. The mounting member has two through holes spaced apart on the left and right, and a central hole located in the center of the through holes. Each of the aforementioned through holes is positioned to overlap with the corresponding speaker body. A vehicle seat according to any one of claims 1 to 6, wherein support pieces extending in directions toward each other are provided on the left and right edges of the central hole.

9. The aforementioned surface material is provided with at least one latching hole, The mounting member is provided with a hooking portion into which the hooking hole is hooked. The vehicle seat according to claim 1, wherein the surface material is provided with a tongue-shaped portion for the worker to grip when the fastening hole is fastened to the fastening portion.

10. The tongue portion is formed by folding the surface material back to the back side at its upper edge and sewing it, and is a bag-like shape that opens on both sides, as described in claim 9 for a vehicle seat.

11. The frame includes a seat back frame that forms the skeleton of the seat back, and a headrest stay coupled to the upper part of the seat back frame. The wire member is connected to the headrest stay. The vehicle seat according to claim 1, wherein the mounting member is fixed to the wire member.

12. The frame comprises a seat back frame that forms the skeleton of the seat back, and a headrest stay that extends upward from the upper end of the seat back frame. An airbag module equipped with an airbag that deploys forward is provided at the lower part of the seat back frame. The vehicle seat according to claim 1, wherein the mounting member is connected to the headrest stay.

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