Vehicle seat

Abstract

Provided is a vehicle seat in which a linear member extending from a seat device and a connection member located at an end of the linear member can be suitably arranged.　A vehicle seat (S) comprises a seat cushion, a seat back (2), a seat frame, and a seat electrical device provided in the seat cushion or the seat back. The vehicle seat also comprises: a first harness (120) that extends from the seat electrical device; a connector (125) that is connected to an extension end of the first harness (120); and a connector attachment part (150) that is provided so as to protrude from the rear surface of a first back cover (40) of the seat back (2), and that attaches the connector (125). A harness pass-though hole (152) for allowing the first harness (120) or the second harness (130) to pass through is formed in a portion, of the connector attachment part (150), differing from the portion to which the connector (125) is attached.

Description

Vehicle seats

[0001] The present invention relates to a vehicle seat, and more particularly to a vehicle seat including a seat back, a seat cushion, and a seat frame that supports the seat back and the seat cushion.

[0002] Conventionally, a vehicle seat including a seat back, a seat cushion, a seat frame (a back frame, a cushion frame), and a seat electrical device provided on the seat back or the seat cushion has been known (see, for example, Patent Document 1). The vehicle seat described in Patent Document 1 includes electrical components attached to the back frame via brackets and a harness connected to the electrical components. The brackets hold the harness and the connector at the end of the harness, respectively, ensuring ease of connection between the electrical components and the harness.

[0003] Japanese Patent Application Laid-Open No. 2018-154172

[0004] In a vehicle seat such as that described in Patent Document 1, it is desirable to suitably arrange the linear members (harnesses) extending from the seat device (seat electrical device) and the connecting members (connectors) at the extending ends of the linear members. For example, it is desirable to route the linear members and connecting members by effectively utilizing the space inside the seat body (seat back, seat cushion) and to attach them so as not to interfere with other components.

[0005] An object of the present invention is to provide a vehicle seat that allows for the optimal placement of a linear member extending from a seat device (seat electrical device) attached to the seat body and a connecting member at the extending end of the linear member. Another object of the present invention is to provide a vehicle seat that allows for the placement of a linear member (harness) and a connecting member (connector) using space within the seat body, and that can be attached without interfering with other components.

[0006] The above-mentioned object is achieved by a vehicle seat according to the present invention, which includes a seat back, a seat cushion, and a seat frame supporting the seat back and the seat cushion, and further includes a first linear member connected to a seat device provided on the seat back or the seat cushion and extending from the seat device, a connecting member connected to an extended end of the first linear member, and an attachment portion protruding from a surface of the seat back, the seat cushion, or the seat frame and for attaching the connecting member, wherein a through-hole is formed in a portion of the attachment portion different from the portion to which the connecting member is attached, for passing the first linear member or a second linear member different from the first linear member and extending from the connecting member. This configuration realizes a vehicle seat in which the linear member extending from a seat device attached to the seat body and the connecting member at the extended end of the linear member can be conveniently positioned. Specifically, the vehicle seat includes an attachment portion protruding from a surface of the seat back, the seat cushion, or the seat frame and for attaching the connecting member. A through-hole for passing the linear member is formed in a portion of the mounting portion different from the portion where the connecting member is attached. That is, a through-hole can be formed in a predetermined portion of the protruding mounting portion, and the linear member can be routed. This allows the linear member and connecting member to be placed using the space inside the seat body (the space created by forming the mounting portion). It also reduces interference with other components.

[0007] In this case, the seat apparatus may be a seat electrical device provided on the seat back, the first linear member may be a first harness extending from an upper portion toward a lower portion of the seat back, the connecting portion may be a connector connected to an extended end of the first harness, the mounting portion may be a connector mounting portion provided so as to protrude from a front surface toward a rear surface of the seat back, and the through-hole may be a harness through-hole. With the above configuration, it is possible to suitably position the harness extending from the seat electrical device and the connector at the extended end of the harness.

[0008] In this case, the connector may be attached to the connector mounting portion on the rear surface of the lower portion of the seat back, and the second linear member may be a second harness that extends from the connector through the harness through-hole toward the front surface of the seat back. With the above configuration, a harness through-hole is formed in a predetermined portion of the protruding connector mounting portion, allowing the second harness to be routed in an appropriate manner.

[0009] In this case, the harness-through hole may be a hole that penetrates in a direction intersecting the protruding direction of the connector mounting portion. The connector may be attached to a protruding surface of the connector mounting portion, and the harness-through hole may be formed on a side surface of the connector mounting portion that faces in the protruding direction of the connector mounting portion. This configuration allows for space-saving arrangement of the harness and connector. Specifically, when routing the harness through the harness-through hole, space can be saved in the protruding direction of the connector mounting portion (e.g., the seat front-rear direction).

[0010] In this case, the connector is attached to the center of the protruding surface of the connector mounting portion, and the harness-through hole is formed on the side surface of the connector mounting portion, and the opening of the harness-through hole preferably extends from the side surface to the edge of the protruding surface. This configuration makes it easier to pass the harness through the harness-through hole. Also, the harness and connector can be positioned closer to each other.

[0011] In this case, the seat frame preferably includes a back frame, the seat back preferably includes a plate-shaped back cover attached to the back frame and supporting a seat occupant from behind, a padding material attached to the front surface of the back cover, and a back support plate provided between the back cover and the padding material and supporting the padding material, the mounting portion being formed on the back cover, and the back support plate preferably covering a portion of the mounting portion when viewed from the front of the seat back. With the above configuration, the back support plate can protect the mounting portion (a portion of the mounting portion).

[0012] In this case, it is preferable that a recess for exposing the mounting portion is formed by cutting out a lower portion of the back support plate facing the mounting portion, and that the edge portion of the back support plate where the recess is formed is curved or inclined. With the above configuration, interference between the harness and the back support plate can be suppressed when routing the harness.

[0013] In this case, the mounting portion may be provided so as to protrude from a surface of the seat back, the seat cushion, or the seat frame, and may have a first member to which the connecting portion is attached and a second member forming the through hole, and the connecting portion attached to the first member may be disposed in a position facing the second member. Even with the above configuration, the linear member extending from the seat device attached to the seat main body and the connecting member at the extending end of the linear member can be preferably disposed.

[0014] In this case, the seat frame may include a back frame, the back frame having left and right side frames disposed laterally in the seat width direction and a lower frame connecting lower portions of the left and right side frames, the seat back may include a plate-shaped back cover attached to the back frame and supporting a seat occupant from behind, and a padding material attached to a front surface of the back cover, the first member may be arranged to protrude forward from lower portions of the side frames or the lower frame, and the second member may be arranged to protrude rearward from a lower portion of the back cover. With the above configuration, the connector and harness can be arranged compactly by the attachment parts (first member, second member).

[0015] In this case, at least one of the seat back and the seat cushion is preferably detachably attached to the seat frame, and the first linear member, the connecting portion, and the attaching portion are attached to the seat back or the seat cushion. With the above configuration, it is possible to suitably arrange the linear member and the attaching portion in a seat in which the seat back (seat cushion) is detachably attached to the seat frame.

[0016] According to the present invention, a vehicle seat can be realized in which a linear member extending from a seat device attached to the seat body and a connecting member can be preferably arranged. Furthermore, the linear member and the connecting member can be arranged by utilizing space inside the seat body (space created by forming the mounting portion). Furthermore, interference with other components can be suppressed. Furthermore, according to the present invention, a harness extending from a seat electrical device and a connector at an extending end of the harness can be preferably arranged. Furthermore, according to the present invention, a harness-through hole can be formed in a predetermined portion of a protruding connector mounting portion, allowing a second harness to be preferably routed. Furthermore, according to the present invention, a harness and a connector can be arranged while saving space. Furthermore, according to the present invention, the harness can be easily passed through the harness-through hole. Furthermore, the harness and the connector can be positioned closer to each other. Furthermore, according to the present invention, the back support plate can protect the mounting portion (a part of the mounting portion). Furthermore, according to the present invention, interference between the harness and the back support plate can be suppressed when routing the harness. Furthermore, according to the present invention, the connector and harness can be arranged compactly using the attachment parts (first member, second member). Furthermore, according to the present invention, the linear member and attachment parts can be arranged appropriately in a seat in which the seat back (seat cushion) is detachable from the seat frame.

[0017] 1 is a perspective view of a vehicle seat according to a first embodiment; 2 is a perspective view of the vehicle seat as viewed from the rear; 3 is an exploded perspective view of a cushion frame and a seat cushion; 4 is an exploded perspective view of a back frame and a seat back; 5 is an exploded perspective view of a back cover, a back support plate, a padding material, and a seat heater; 6 is an exploded perspective view of a headrest frame, a head cover, and a padding material; 7 is a perspective view of a seat back (first back cover) as viewed from the rear; 8 is a perspective view of the lower left end of the back frame and the seat back (first back cover) as viewed from the rear, showing a harness, a connector, and a connector mounting portion; 9 is an exploded perspective view of the harness, a connector, and a connector mounting portion; 10 is a front view of the seat back, showing a back support plate, a first back cover (connector mounting portion), and a harness; 11 is a view of a vehicle seat according to a second embodiment, showing a harness, a connector, and a connector mounting portion (first member, second member); 12 is a perspective view of a vehicle seat according to a third embodiment (viewed from the rear); 13 is a perspective view of the vehicle seat as viewed from the rear, showing an enlarged view of a main portion of a cover member that covers the harness; and 14 is a perspective view of the harness and cover member as viewed from the rear. 21 . A perspective view of the harness and cover member as seen from the front. A side view of the harness and cover member. A perspective view of a first modified vehicle seat, showing the cover member. A perspective view of a second modified vehicle seat, showing the cover member. A perspective view of a third modified vehicle seat, showing the cover member. A perspective view of a fourth modified vehicle seat, showing the cover member. A perspective view of a fifth modified vehicle seat, showing the cover member. A cross-sectional view taken along line A-A in FIG. 21 . A cross-sectional view taken along line B-B in FIG. 21 . A diagram showing a sixth modified vehicle seat, showing a top view of the harness and cover member. A perspective view of a fourth embodiment of the vehicle seat, showing the reclining cover, the attachment member, and the cover member. A perspective view of the harness, the attachment member, and the cover member as seen from the front. A perspective view of a fifth embodiment of the vehicle seat (as seen from the rear). An exploded perspective view of a back frame and a second back cover (rear back cover). A front view of the second back cover, showing the harness passing portion.

[0023] Fig. 1 is a front view of the back frame and second back cover, showing the harness, harness passing portion, and harness hook portion; Fig. 2 is a side view of the base cover, back frame, and second back cover, showing the harness, harness passing portion, and harness hook portion; Fig. 3 is a top view of the base cover, back frame, and second back cover, showing the harness, harness passing portion, and harness escape portion; Fig. 4 is a perspective view of the vehicle seat as seen from the rear, showing the harness and reclining cover.

[0018] Hereinafter, an embodiment of the present invention will be described with reference to Figures 1 to 33. This embodiment relates to a "vehicle seat" that enables a linear member extending from a seat device (seat electrical device) attached to the seat body and a connecting member at the extending end of the linear member to be suitably positioned. Note that the side of the vehicle seat on which an occupant sits relative to the seat back (headrest) is the front side (seat front side). Also, the side on which an occupant sits relative to the seat cushion is the upper side (seat upper side).

[0019] First Embodiment First, a vehicle seat S according to a first embodiment will be described with reference to Figures 1 to 10. As shown in Figure 1, the vehicle seat S is a vehicle seat, for example, a front seat that is disposed in a forward position of the vehicle. Note that the vehicle seat S may be a middle seat or a rear seat.

[0020] As shown in FIGS. 1 and 2, the vehicle seat S includes a seat cushion 1, a seat back 2, a headrest 3, and a seat frame F (cushion frame 10, back frame 30) that supports the seat cushion 1, the seat back 2, and the headrest 3. As shown in FIGS. 3 to 5, the seat cushion 1 and the seat back 2 are detachably attached to the cushion frame 10 and the back frame 30, respectively. As shown in FIG. 6, the headrest 3 is detachably attached to the seat back 2. In other words, the vehicle seat S is also called a "changeable seat," and is a seat in which the seat cushion 1 and the seat back 2 can be detached from the seat frame F and replaced as needed. The combination of the seat cushion 1, the seat back 2, and the headrest 3 is also called the "seat main body."

[0021] As shown in FIGS. 1 and 2 , the vehicle seat S includes a rail device 4 that supports a seat body (seat frame F) relative to the vehicle floor so that the seat body can move back and forth, and a reclining device 5 that rotatably connects a seat back 2 (back frame 30) to a seat cushion 1 (cushion frame 10). The vehicle seat S also includes a control device 90 attached to the seat cushion 1 as shown in FIG. 3 , and a blower device 100 and a seat heater 110 each provided inside the seat back 2 as shown in FIG. 5 . The vehicle seat S may also include a height link device that connects the seat body to the vehicle floor (rail device 4) so ​​that the seat body can be raised and lowered, a side support device that protrudes the side portions of the seat body toward the seat occupant, an airbag device, a vibration device, and the like. The control device 90, blower device 100, and seat heater 110 correspond to the "seat device" and the "seat electrical device." Movable devices such as the rail device 4 and the reclining device 5 may also be included in the seat device (seat electrical device). The control device 90 may control the operations of the rail device 4 and the reclining device 5 in addition to controlling the operations of the blower device 100 and the seat heater 110 .

[0022] 1 to 3, the seat cushion 1 is a seating portion that supports a seated person (occupant) from below, and includes a base cover 20 that serves as a framework, a first pad material 1a and a second pad material 1b that are placed on the base cover 20, and a cover material 1c that covers the base cover 20 and the pad materials 1a and 1b. The seat cushion 1 is also called a "cushion module," and the base cover 20, the pad materials 1a and 1b, and the cover material 1c are integrated together. The base cover 20 (also called a cushion cover) is a cover made of, for example, a resin material (resin cover), but may also be a metal cover.

[0023] As shown in Figures 1, 2, 4, 5, and 7, the seat back 2 is a backrest portion that supports a seated occupant from behind. It includes a first back cover 40 and a second back cover 50 as frameworks, a first padding material 2a and a second padding material 2b placed on the front surface of the first back cover, and a covering material 2c covering the first back cover 40 and the padding materials 2a and 2b. A back support plate 60 is attached between the first padding material 2a and the second padding material 2b. The seat back 2 is also referred to as a "back module," and is primarily composed of the first back cover 40, the padding materials 2a and 2b, and the covering material 2c, which are integrated together, and the second back cover 50. The former is assembled to the front of the back frame 30, and the latter is assembled to the rear of the back frame 30, and these are assembled together. The back covers 40 and 50 are, for example, covers made of a resin material (resin covers), but may also be metal covers.

[0024] 1, 2, and 6, the headrest 3 is a head portion that supports the head of a seated occupant from behind, and includes a head frame 70 that serves as a skeleton, a head cover 80 attached to the rear surface of the head frame 70, a padding material 3a placed on the front surface of the head frame 70, and a covering material 3b that covers the head frame 70, the head cover 80, and the padding material 3a. The head frame 70 is attached to the upper end of the seat back 2 via a bracket 46. The head cover 80 is, for example, a cover made of a resin material (resin cover), but may also be a metal cover.

[0025] 1 and 2, the rail device 4 is disposed between the cushion frame 10 and the vehicle floor in the vertical direction, and includes left and right lower rails 4a fixed to the vehicle floor and extending in the front-to-rear direction of the seat, left and right upper rails 4b supported slidably along the lower rails 4a, a locking member 4c that locks the upper rails 4b to prevent them from sliding relative to the lower rails 4a, and a rail operating lever (not shown) that releases the locked state of the locking member 4c. The cushion frame 10 (side frame 11) is attached to the upper surfaces of the left and right upper rails 4b.

[0026] 1 and 2 , the reclining device 5 includes a reclining main body 5a that is driven to rotate the back frame 30, a back rotation shaft 5b, a spiral spring 5c ​​that biases the back frame 30 to rotate forward about the back rotation shaft 5b, and a recliner operation lever (not shown) that is operated to unlock the back frame 30. The reclining main body 5a has a known locking mechanism that can switch the state of the back frame 30 between a locked state in which it is fixed to the cushion frame 10 and an unlocked state in which it is rotatable relative to the cushion frame 10. The back rotation shaft 5b is axially supported on both the cushion frame 10 side and the back frame 30 side in the seat width direction. One end of the spiral spring 5c ​​is engaged with the cushion frame 10 side and the other end is engaged with the back frame 30 side.

[0027] <<Cushion Frame, Seat Cushion (Base Cover)>> As shown in FIG. 3 , the cushion frame 10 is a rectangular frame-like body. It includes side frames 11 arranged on the left and right sides and extending in the front-to-rear direction of the seat, a plate-shaped pan frame 12 installed in front of each side frame 11, a rear connecting frame 13 connecting the rear ends (rear ends) of each side frame 11, a plurality of elastic springs 14 hooked to the pan frame 12 and the rear connecting frame 13 and extending in a snake-like shape in the front-to-rear direction of the seat, and a support plate 15 supported by the plurality of elastic springs 14. The support plate 15 is a support member that supports the buttocks of a seated occupant and is also referred to as a pressure plate. The support plate 15 is located in an area surrounded by the left and right side frames 11, the pan frame 12, and the rear connecting frame 13. Cover assembly portions 16 for assembly to the base cover 20 (assembly portions 24) are formed on the left and right sides of the pan frame 12.

[0028] As shown in FIG. 3 , the base cover 20 is a resin frame-shaped body that includes cover side portions 21 arranged on the left and right sides and extending in the front-to-rear direction of the seat, a cover front portion 22 that connects the front portions of the cover side portions 21, and a cover rear portion 23 that connects the rear portions of the cover side portions 21. The cover front portion 22 is formed with left and right assembly portions 24 for assembly to the cushion frame 10 (pan frame 12). The cover rear portion 23 is formed with left and right detachable portions 25 for attachment to and detachment from the cushion frame 10 (rear connecting frame 13). For example, the base cover 20 is attached to the cushion frame 10 by attaching the detachable portions 25 to the rear connecting frame 13 and then assembling the assembly portions 24 to the pan frame 12 (by fastening bolts from above).

[0029] The first padding material 1a is disposed in an area surrounded by the left and right cover side portions 21, the front cover portion 22, and the rear cover portion 23. The second padding material 1b is placed on the upper surfaces of the base cover 20 and the first padding material 1a. The skin material 1c covers the base cover 20, the first padding material 1a, and the second padding material 1b from above. The skin terminal portion (outer edge portion) of the skin material 1c is hooked onto a skin hook portion provided at the lower end of the outer edge portion of the base cover 20.

[0030] With the above-described configuration, the seat cushion 1 (cushion module) in which the base cover 20, the pad materials 1a, 1b, and the cover material 1c are integrated is detachably assembled to the cushion frame 10. As shown in Fig. 3, a control device 90 is attached via a bracket to the rear surface of the center portion in the seat width direction of the base cover 20 (front cover portion 22).

[0031] <<Back Frame, Seat Back (Back Cover)>> As shown in Fig. 4 , the back frame 30 is a rectangular frame-like body and includes back side frames 31 arranged on the left and right sides, an upper frame 32 connecting the upper ends of the back side frames 31, and a lower frame 33 connecting the lower ends of the back side frames 31. Cover assembly portions 34 for assembling a first back cover 40 and a second back cover 50 are formed on the outer edge portions of each of the back side frames 31, the upper frame 32, and the lower frame 33. The back frame 30 is sandwiched between the first back cover 40 (front back cover) and the second back cover 50 in the seat front-rear direction, and is assembled to these back covers 40, 50.

[0032] The first back cover 40, also referred to as the "front back cover," is a resin frame-shaped body as shown in FIGS. 4, 5, and 7. The first back cover 40 includes cover side portions 41 arranged on the left and right sides, an upper cover portion 42 connecting the upper portions of the cover side portions 41, and a lower cover portion 43 connecting the lower portions of the cover side portions 41. Specifically, an opening 44 is formed in the center of the first back cover 40. The rear surfaces of the cover side portions 41, the upper cover portion 42, and the lower cover portion 43 are each formed with an assembly portion 45 for assembly to the back frame 30 (cover assembly portion 34) and the second back cover 50 (assembly portion 55). A bracket 46 for assembly to the head frame 70 is fixed to the front surface of the upper end of the upper cover portion 42.

[0033] A back support plate 60 is attached to the center of the front surface of the first back cover 40 so as to cover the opening 44. A generally trapezoidal recess 47 is formed on the front surface of the cover upper portion 42, slightly below the bracket 46. A blower device 100 is stored inside the recess 47 and is positioned so that it does not protrude forward. As will be described in detail later, a connector mounting portion 150 is formed on the back surface of the lower portion of the first back cover 40 so as to protrude toward the rear of the seat.

[0034] The second back cover 50, also referred to as the rear back cover, is a resin frame-shaped body as shown in FIG. 4 . The second back cover 50 includes cover side portions 51 arranged on the left and right sides, an upper cover portion 52 connecting the upper portions of the cover side portions 51, and a lower cover portion 53 connecting the lower portions of the cover side portions 51. Specifically, an opening 54 is formed in the center of the second back cover 50. The front surfaces of the cover side portions 51, the upper cover portion 52, and the lower cover portion 53 are each formed with an assembly portion 55 for assembly to the back frame 30 (cover assembly portion 34) and the first back cover 40 (assembly portion 45). Furthermore, the lower ends of the left and right cover side portions 51 are formed with fitting holes 56 for fitting the reclining device 5 (recliner main body 5a, back rotation shaft 5b).

[0035] For example, the first back cover 40 and the second back cover 50 are positioned so as to sandwich the back frame 30, and the cover assembly portion 34, the assembly portion 45, and the assembly portion 55 are assembled (by bolting from the rear) to assemble the back covers 40, 50 to the back frame 30.

[0036] As shown in FIG. 5 , the back support plate 60 is a support member that supports the back of a seated occupant and is also referred to as a pressure plate. The back support plate 60 is disposed in the center portion of the front surface of the first back cover 40, positioned below the blower device 100. Plate mounting portions 61 for mounting to the front surface of the first back cover 40 are formed on the left and right sides of the back support plate 60. The plate mounting portions 61 are mounting holes, and a plurality of plate mounting portions 61 are formed at predetermined intervals in the vertical direction. The back support plate 60 is mounted to the front surface of the back frame 30 by fastening bolts from the front while the plate mounting portions 61 communicate with the mounting holes 35 of the back frame 30. Note that, as will be described in detail later, recesses 62 are formed in the corners of the lower portion of the back support plate 60 to expose the connector mounting portions 150.

[0037] As shown in FIG. 5 , the first padding material 2a is placed on the front of the first back cover 40 and the back support plate 60. A protrusion 2aa that protrudes forward of the seat is formed in the upper portion of the first padding material 2a, in a portion corresponding to the blower device 100. The second padding material 2b is disposed on the front of the first padding material 2a. A seat heater 110 is disposed between the first padding material 2a and the second padding material 2b. The cover material 2c covers the first back cover 40, the back support plate 60, the first padding material 2a, the seat heater 110, and the second padding material 2b from the front. The cover terminal portion (outer edge portion) of the coverding material 2c is hooked to a cover hook portion provided on the back surface of the outer edge portion of the first back cover 40.

[0038] With the above-described configuration, the seat back 2 (back module) in which the first back cover 40, the back support plate 60, the first padding 2a, the seat heater 110, the second padding 2b, and the upholstery material 2c are integrated is removably assembled to the back frame 30. As shown in Fig. 4, the second back cover 50 is separately removably assembled to the back frame 30 from the rear.

[0039] <<Head Frame, Headrest>> As shown in Fig. 6 , the head frame 70 is a frame made of, for example, resin, and includes a frame main body 71 and an outer edge flange 72 that protrudes rearward from the outer edge of the frame main body 71. A back assembly portion 73 for assembly to the first back cover 40 (bracket 46) is formed in the central portion of the frame main body 71. Furthermore, a plurality of cover assembly portions 74 for assembly to the head cover 80 are formed in the peripheral portion of the back assembly portion 73 of the frame main body 71. The cover assembly portions 74 are arranged to surround the back assembly portion 73.

[0040] As shown in Fig. 6, the head cover 80 is, for example, a frame made of resin, and includes a cover main body 81 and an outer edge flange 82 that protrudes forward from the outer edge of the cover main body 81. An opening 83 for passing the back assembly portion 73 and the bracket 46 is formed in the central portion of the cover main body 81. Furthermore, a plurality of assembly portions 84 for assembly to the head frame 70 are formed in the cover main body 81 around the opening 83. The assembly portions 84 are arranged to surround the opening 83.

[0041] For example, the head frame 70 and the head cover 80 are butted together and the cover assembly portion 74 and the assembly portion 84 are assembled (by fastening with clips), whereby the head frame 70 and the head cover 80 are assembled. Then, the head frame 70 and the first back cover 40 are butted together and the back assembly portion 73 and the bracket 46 are assembled (by fastening with bolts from the front), whereby the head frame 70, the head cover 80, and the first back cover 40 are assembled.

[0042] The padding material 3a is placed on the front surface of the head frame 70. The skin material 3b covers the head frame 70 and the head cover 80 from above or from the front. The skin terminal portion (outer edge portion) of the skin material 3b is hooked to a skin hook portion provided on the outer edge portion of the head frame 70 or the head cover 80. The padding material 3a is formed larger than the head frame 70 and the head cover 80, and is arranged so as to protrude downward from the head frame 70 and the head cover 80. A part (lower portion) of the padding material 3a is arranged so as to cover the blower device 100.

[0043] With the above-described configuration, the headrest 3 (head module) in which the head frame 70, the head cover 80, the padding material 3a, and the covering material 3b are integrated is detachably assembled to the seat back 2 (first back cover 40).

[0044] <<Seat Electrical Device (Seat Device)>> Next, the control device 90, the blower device 100, and the seat heater 110 will be described.

[0045] 3, the control device 90 is a device that performs overall electrical control of the vehicle seat S, and is, for example, an engine control unit (ECU). The control device 90 is connected to the blower device 100, the seat heater 110, and other seat electrical devices (seat moving devices) via an in-vehicle network. The control device 90 is attached to the rear surface of the center portion of the seat back 2 (base cover 20) via a bracket 91, and is connected to each seat electrical device via a harness.

[0046] The control device 90 determines whether an occupant is seated based on a detection signal output from a detection sensor (not shown), for example, and controls the operation of the blower device 100 and the seat heater 110. Specifically, the control device 90 is a computer that includes a CPU (processor) as a data calculation and control processing device, ROM and RAM as storage devices, an HDD, and a communication interface that transmits and receives information data via an in-vehicle network.

[0047] As shown in FIG. 5 , the blower device 100 is attached to a recess 47 provided in the upper portion of the seat back 2 (first back cover 40) and is a device that draws in air from the seat occupant side. The blower device 100 may also be a device that blows air toward the seat occupant side. The blower device 100 includes a blower body 101, an intake port 102 that draws in air from the seat occupant side, a duct 103 connected to the blower body 101 and through which air passes, and an outlet port (not shown) connected to the duct 103 and through which the drawn-in air is discharged. A first harness 120 is electrically connected to the left side portion of the blower device 100 (blower body 101).

[0048] 5, the seat heater 110 is a planar heating element that warms the seat back 2, and is disposed between the first pad material 2a and the second pad material 2b, and can warm an occupant who touches the seat back 2. A second harness 130 is electrically connected to the lower end of the left side portion of the seat heater 110.

[0049] <<Seat Components>> Next, we will explain in detail the first harness 120, the second harness 130, the third harness 140, and the connector attachment portion 150. The connector attachment portion 150 is used to simply route the harnesses 120, 130, and 140 extending from the seat electrical device (blower device 100) attached to the seat main body (seat back 2).

[0050] As shown in Figures 5 and 7 to 9, the first harness 120 is a first linear member that extends downward from the left side portion of the blower device 100 and further extends downward along the back surface of the first back cover 40 (cover side portion 41). A connector 125 (connection portion) is connected to the extending end of the first harness 120. A connector (not shown) is also connected to the base end of the first harness 120 (the connection portion with the blower device 100). Note that the first harness 120 may be a harness that extends from another seat electrical device inside the seat back 2.

[0051] 8 to 10 , the connector 125 is attached to a connector attachment portion 150 on the rear surface of the lower end portion (cover lower portion 43) of the first back cover 40, and is electrically connected to the second connector 145. That is, the connector 125 is connected to the second connector 145 in the vertical direction. A second harness 130 different from the first harness 120 is connected to the connector 125. A third harness 140 is connected to the second connector 145.

[0052] As shown in FIGS. 5 and 8 to 10 , the second harness 130 is a second linear member that extends from the connector 125 through a harness through-hole 152 to the front surface of the first back cover 40. The second harness 130 is connected to the seat heater 110 provided on the front surface of the first back cover 40. In other words, the second harness 130 extends from the lower end of the left side portion of the seat heater 110, passes through the harness through-hole 152, and extends to the rear surface of the first back cover 40. The connector 125 is connected to the extending end of the second harness 130. A connector (not shown) is also connected to the base end of the second harness 130 (the portion connected to the seat heater 110). The second harness 130 may be a harness that extends from another seat electrical device located inside the seat back 2.

[0053] As shown in FIG. 8 , the third harness 140 is a third linear member extending downward from the second connector 145. Specifically, the third harness 140 passes through the lower end of the back frame 30 (first back cover 40) and extends forward of the seat. Then, it extends along the bottom surface of the cushion frame 10 (base cover 20) and is connected to the control device 90 provided on the bottom surface of the base cover 20 (front cover portion 22). In other words, the third harness 140 is connected to the control device 90 and extends rearward from the control device 90 along the bottom surface of the cushion frame 10 (base cover 20). Then, it bends at the rear end of the cushion frame 10 and extends upward. The second connector 145 is connected to the extending end of the third harness 140. A connector (not shown) is also connected to the base end of the third harness 140 (the connection portion with the control device 90). The third harness 140 may be a harness extending from another seat electrical device inside the seat cushion 1 .

[0054] As shown in Figures 8 to 10, the connector mounting portion 150 is used to mount the connector 125 and is provided so as to protrude from the front surface toward the rear surface of the lower end portion (cover lower portion 43) of the first back cover 40. The connector mounting portion 150 is a protruding convex portion. A connector mounting hole 151 is formed on the protruding surface of the connector mounting portion 150. Furthermore, a harness through-hole 152 is formed on the side surface of the connector mounting portion 150 in the protruding direction. In other words, the connector mounting hole 151 and the harness through-hole 152 are formed on different surfaces (different portions) of the connector mounting portion 150.

[0055] The connector mounting hole 151 is a through-hole that penetrates the seat in the front-to-rear direction and is formed in the center of the protruding surface (rear surface) of the connector mounting portion 150. For example, a mounting clip 125a (mounting portion) provided on the side of the connector 125 fits into the connector mounting hole 151, thereby allowing the connector 125 to be detachably mounted to the connector mounting portion 150.

[0056] The harness-through hole 152 is a through-hole for passing the second harness 130 extending from the connector 125, and is formed on the side surface (i.e., the top surface) of the connector attachment portion 150. The opening of the harness-through hole 152 extends from the center of the side surface of the connector attachment portion 150 to the edge portion of the protruding surface. This makes it easier to pass the second harness 130 through the harness-through hole 152. Furthermore, as shown in FIG. 8 , the second harness 130 and the connector 125 can be positioned closer to each other. The second harness 130 extends from the connector 125 through the harness-through hole 152 toward the front surface of the seat back 2 and is connected to the seat heater 110 located in front of the seat back 2.

[0057] 9 , in the above configuration, the harness-through hole 152 is formed as a hole that penetrates in a direction (vertical direction) that intersects with the protruding direction of the connector mounting portion 150 (seat front-rear direction). Therefore, the harnesses 120, 130 and the connector 125 can be arranged while saving space. Specifically, when routing the second harness 130 through the harness-through hole 152, space can be saved in the protruding direction of the connector mounting portion 150 (seat front-rear direction).

[0058] 10 , in the above configuration, the back support plate 60 covers a portion of the connector mounting portion 150 in a front view of the seat back 2. Therefore, the back support plate 60 can protect the connector mounting portion 150 (a portion of the connector mounting portion 150).

[0059] 10 , in the above-described configuration, a recess 62 for exposing the connector mounting portion 150 is cut out of the back support plate 60 in a portion (lower portion) facing the connector mounting portion 150. More specifically, the edge of the back support plate 60 where the recess 62 is formed is curved (the edge is inclined). Therefore, when routing the harness (second harness 130), interference between the harness and the back support plate 60 can be suppressed.

[0060] The vehicle seat S allows for the optimal placement of the harness extending from the seat electrical device attached to the seat body and the connector at the extending end of the harness. Furthermore, the harness and connector can be placed using the space inside the seat body, and can be attached without interfering with other components.

[0061] Second Embodiment Next, a vehicle seat S2 according to a second embodiment will be described with reference to Fig. 11. Description of content that overlaps with that of the vehicle seat S described above will be omitted. Fig. 11 is a diagram showing harnesses 120, 130, 140 and a connector attachment portion 150A (first member 151A, second member 152A).

[0062] In the vehicle seat S2, the connector mounting portion 150A has a first member 151A that protrudes forward from the surface of the side portion of the back frame 30 (lower frame 33), and a second member 152A that protrudes from the front surface of the lower end portion (cover lower portion 43) of the first back cover 40 toward the rear surface.

[0063] The first member 151A is a plate-shaped member that is fixed by welding to the inner surface of a lateral portion of the lower frame 33 and protrudes forward along the inner surface of the backside frame 31. A connector mounting hole 151 is formed in the side surface of the protruding portion of the first member 151A. The connector mounting hole 151 is a through-hole that penetrates in the seat width direction. For example, a mounting clip 125a (mounting portion) provided on the side surface of the connector 125 fits into the connector mounting hole 151, thereby detachably mounting the connector 125 to the connector mounting portion 150.

[0064] The second member 152A is a protruding convex portion. A harness-through hole 152 is formed on the side surface (i.e., the top surface) of the connector attachment portion 150 in the protruding direction. The harness-through hole 152 is a through-hole for passing the second harness 130 extending from the connector 125. The opening of the harness-through hole 152 extends from the side surface of the second member 151B to the edge portion of the protruding surface. The second harness 130 extends from the connector 125 through the harness-through hole 152 toward the front surface of the seat back 2.

[0065] In the vehicle seat S2, the harness extending from the seat electrical device and the connector at the extending end of the harness can be positioned appropriately. Also, the harness can be attached without interfering with other components.

[0066] <<Method of Manufacturing Vehicle Seat>> Next, a method of manufacturing the vehicle seat S will be described with reference to Figures 1 to 10. Note that in the method of manufacturing the vehicle seat S, a description of manufacturing steps other than those described below will be omitted.

[0067] First, a seat cushion 1 (cushion module), a seat back 2 (back module), and a seat frame F (cushion frame 10, back frame 30) are prepared. The seat back 2 includes a first back cover 40, a second back cover 50, a first pad material 2a, a second pad material 2b, and a cover material 2c. A back support plate 60 is attached between the first pad material 2a and the second pad material 2b.

[0068] Then, seat electrical devices (e.g., a control device 90, a blower device 100, and a seat heater 110) are attached inside the seat cushion 1 and the seat back 2. The seat cushion 1 is then attached to the cushion frame 10. The seat back 2 is also attached to the back frame 30. The seat cushion 1 and the seat back 2 are detachable from the seat frame F.

[0069] Then, the harnesses 120, 130, 140 extending from the seat electrical device and the connectors 125, 145 are routed. Specifically, the connector 125 at the extending end of the first harness 120 is attached to the rear surface of a connector attachment portion 150 formed to protrude from the front surface of the seat back 2 (first back cover 40) to the rear surface. Then, the second harness 130 extending from the connector 125 is passed through a harness passage hole formed on the side surface of the connector attachment portion 150. The second harness 130 passes from the connector 125 through the harness passage hole 152 and extends to the front surface of the first back cover 40. Then, the second harness 130 is connected to the seat electrical device provided on the front surface of the first back cover 40.

[0070] The above manufacturing method makes it possible to manufacture a vehicle seat in which the harness extending from the seat electrical device and the connector at the extending end of the harness can be suitably arranged.

[0071] <<Others>> In the above embodiment, as shown in Figures 3 and 4, the seat cushion 1 and the seat back 2 are detachably attached to the cushion frame 10 and the back frame 30, respectively, but this is not particularly limited. For example, only the seat cushion 1 may be detachably attached to the cushion frame 10. Alternatively, only the seat back 2 may be detachably attached to the back frame 30. Alternatively, the seat cushion 1 and the seat back 2 may be fixed to the cushion frame 10 and the back frame 30, respectively.

[0072] In the above embodiment, as shown in Figures 3 and 4, the seat cushion 1 and the seat back 2 are configured with a cushion module and a back module, but this is not limited to this. For example, the seat cushion 1 may be configured with a padding material and a covering material. Alternatively, the seat cushion 1 may be configured with a cushion frame, a padding material, and a covering material. Similarly, the seat back 2 may be configured with a padding material and a covering material, or with a back frame, a padding material, and a covering material.

[0073] In the above embodiment, as shown in FIG. 8 , the connector 125 of the harness (first harness 120) connected to the blower device 100 is attached to the connector attachment portion 150 of the seat back 2 (first back cover 40). However, this is not particularly limited. For example, a connector of a harness connected to another seat device (seat electrical device) may be attached to the connector attachment portion. Alternatively, a connecting member such as a cable connected to another seat movement device may be attached to the attachment portion of the seat back 2. Alternatively, a connector (cable connecting member) of a harness connected to another seat device may be attached to a connector attachment portion (attachment portion) formed on the seat back 2 (base cover 20).

[0074] In the above embodiment, as shown in Fig. 8, the connector attachment portion 150 is formed to protrude from the front surface toward the rear surface of the seat back 2 (first back cover 40), but this is not particularly limited. For example, the connector attachment portion 150 may be formed to protrude from the surface of the second back cover 50 or the surface of the back frame 30. Alternatively, the connector attachment portion 150 may be formed to protrude from the surface of the seat cushion 1 (base cover 20) or the cushion frame 10.

[0075] In the above embodiment, as shown in Fig. 8, the second harness 130 extends to pass through the harness-through hole 152 of the connector mounting portion 150, but this is not particularly limited. For example, the first harness 120 may extend to pass through the harness-through hole 152, or the third harness 140 may extend to pass through the harness-through hole 152. Furthermore, although the harness-through hole 152 is formed on the top surface of the connector mounting portion 150, it may also be formed on the bottom surface, left side surface, or right side surface of the connector mounting portion 150.

[0076] In the above embodiment, a vehicle seat (automobile seat) was described as a specific example, but the present invention is not limited to this and can be used as a seat for vehicles such as trains, buses, airplanes, ships, etc.

[0077] Third Embodiment Next, a vehicle seat S3 of a third embodiment will be described with reference to FIGS. 12 to 24. The vehicle seat S3 is a seat that can appropriately cover, with a cover member, a linear member (harness) extending from a seat device (seat electrical device) attached to the seat body. The vehicle seat S3 is also a seat that can appropriately cover, with a cover member, a linear member even when a part or all of the seat body is movable or when the seat body is detachable from the seat frame. The same applies to the vehicle seat S4. Descriptions that overlap with those of the vehicle seats S and S2 described above will be omitted.

[0078] As shown in Fig. 12, the vehicle seat S3 includes a seat cushion 1, a seat back 2, a headrest 3, and a seat frame F (cushion frame 10, back frame 30) that supports the seat cushion 1, the seat back 2, and the headrest 3. As shown in Fig. 12, the vehicle seat S3 also includes a rail device 4 that supports the seat body (seat frame F) so that it can move back and forth relative to the vehicle floor, and a reclining device 5 that rotatably connects the seat back 2 (back frame 30) to the seat cushion 1 (cushion frame 10). The vehicle seat S3 also includes a control device 90 attached inside the seat cushion 1, and a blower device 100 and a seat heater 110 that are each provided inside the seat back 2.

[0079] The reclining device 5 is covered from the outside by a reclining cover 6. As shown in Figures 12 and 13, the reclining cover 6 is a resin cover and includes an outer reclining cover 6a that covers the reclining device 5 from the outside in the seat width direction, and an inner reclining cover 6b that covers the inside in the seat width direction. The inner reclining cover 6b includes a reclining cover portion 6ba that faces the reclining main body 5a and covers the reclining main body 5a from the inside, and a shaft cover portion 6bb that faces the back rotation shaft 5b and covers the back rotation shaft 5b from the rear. The shaft cover portion 6bb protrudes inward from the inner surface of the reclining cover portion 6ba. Note that the reclining covers 6 (6a, 6b) may be configured as an integrated cover.

[0080] A harness 220 is electrically connected to the left side portion of the blower device 100 (blower body 101). The harness 220 is also electrically connected to the lower end of the left side portion of the seat heater 110.

[0081] 13, the harness 220 is a linear member that extends downward from a side portion of the blower device 100 and further extends downward along the back surface of the first back cover 40 (cover side portion 41). The harness 220 is divided into a branch harness 221 and a branch harness 222 at the lower portion of the first back cover 40 (cover lower portion 43).

[0082] The branch harness 221 extends from the harness 220 through a harness hole (not shown) to the front surface of the first back cover 40. The branch harness 221 is connected to the seat heater 110 provided on the front surface of the first back cover 40. As shown in FIG. 13 , the branch harness 222 passes from the harness 220 through the lower end of the back frame 30 (first back cover 40) and extends toward the front of the seat. The branch harness 222 then extends along the bottom surface of the cushion frame 10 (base cover 20) and is connected to the control device 90 provided on the bottom surface of the base cover 20 (cover front portion 22). In other words, the harness 220 (branch harness 222) is connected to the blower device 100, extends downward from the blower device 100, and extends from the seat back 2 toward the seat cushion 1. At this time, the branch harness 222 passes behind the rear portion of the seat cushion 1. More specifically, the cushion frame 10 passes behind the rear connecting frame 13 and extends along the outer periphery of the rear connecting frame 13 toward the front of the seat.

[0083] The harnesses 220 (branch harnesses 222) are disposed at left and right lateral positions in the seat width direction, as shown in Fig. 13. The left and right harnesses 220 each extend downward from the blower device 100, but this is not particularly limited. For example, the left harness 220 may extend downward from the blower device 100, and the right harness 220 may extend downward from another seat device (such as a side support device or a vibration device).

[0084] <<Seat Component (Cover Member)>> Next, the cover member 230 that covers the harness 220 (branch harness 222) will be described in detail. The cover member 230 is intended to appropriately cover the harness extending from a seat electrical device attached to the seat main body (seat cushion 1, seat back 2). In particular, the cover member 230 can appropriately cover the harness even when part or all of the seat main body is movable or when the seat main body is detachable from the seat frame.

[0085] 13 to 16, the cover member 230 is a resin cover that covers the harness 220 (branch harness 222) from behind in the rear portion of the seat cushion 1. Note that hereinafter, the branch harness 222 will also be referred to as the harness 220. The cover member 230 is a plate-shaped cover that is attached to the left and right harnesses 220. More specifically, of the seat cushion 1, seat back 2, seat frame F, and harness 220, the cover member 230 is attached to the harness 220 (only the harness 220).

[0086] The cover member 230 has a cover main body 231 that is elongated in the seat width direction, and first and second attachment portions 232, 233 that are provided on the left and right sides of the cover main body 231 and are attached to the harness 220. The cover main body 231 is positioned slightly below the seat back 2 in the vertical direction and slightly above the rail device 4. The attachment portions 232, 233 are positioned in positions facing the left and right harnesses 220 at the rear of the seat cushion 1, respectively. A plurality of attachment portions 232, 233 are formed at predetermined intervals in the vertical direction.

[0087] As shown in Figures 14 to 16, the attachment portions 232, 233 are attachment holes and are each attached to the harness 220 using an attachment member 234. For example, the attachment member 234 is a cable tie, and the attachment portions 232, 233 and the harness 220 are connected (locked) by the cable tie, thereby detachably attaching the cover member 230 to the left and right harnesses 220. Note that the attachment member 234 may be an attachment clip (locking clip) or the like in addition to a cable tie (attachment band). Alternatively, if the attachment portions 232, 233 have a clip shape (locking shape), the attachment member 234 may be unnecessary.

[0088] As described above, the cover member 230 is fixed to the harness 220 itself, so that the cover member 230 can be preferably attached (post-installed) even in a configuration in which the seat back 2 is detachably attached to the back frame 30. In other words, since the cover member 230 is not fixed to the seat back 2 (seat cushion 1) or the back frame 30 (cushion frame 10), the cover member can be attached when necessary.

[0089] In the above configuration, as shown in Fig. 13, the cover member 230 covers the left and right harnesses 220 and portions of the left and right inner reclining covers 6b from the rear. This allows the cover member 230 to suitably cover the rear portion of the seat cushion 1. In other words, when the cover member 230 is positioned, it is possible to prevent a gap from being formed between the cover member 230 and the inner reclining cover 6b. The cover member 230 also covers the pivot cover portion 6bb of the inner reclining cover 6b from the rear. The cover member 230 may also cover the reclining cover portion 6ba and the pivot cover portion 6bb from the rear.

[0090] In the vehicle seat S3, the harness extending from the seat electrical device can be suitably covered by the cover member. Furthermore, even when the seat back is rotatable or detachable from the seat frame, the harness can be suitably covered by the cover member.

[0091] <<Modifications 1 to 6 of Cover Member>> Next, Modification 1 of the cover member 230 will be described with reference to Fig. 17. Description of content that overlaps with the above-described cover member 230 will be omitted. The cover member 230A of Modification 1 is a plate-shaped cover that is attached to the left and right harnesses 220. More specifically, of the seat cushion 1, seat back 2, seat frame F, and harness 220, it is attached to the harness 220 (only the harness 220).

[0092] The cover member 230A has a cover main body portion 231 that is elongated in the seat width direction, and first and second attachment portions 232 and 233 that are attached to the left and right harnesses 220. A cutout portion 235 is formed at the lower end portion of the cover member 230A for inserting the legs of an occupant positioned rearward of the vehicle seat S3. The cutout portion 235 is a rectangular cutout hole (insertion hole) that extends elongated in the seat width direction. In other words, the cover main body portion 231 has an inverted U-shape that is elongated in the seat width direction. When viewed from the rear of the vehicle seat S3 (cover member 230), the cutout portion 235 and the harness 220 are positioned so as not to overlap. Furthermore, when viewed from the rear of the seat, the cutout portion 235 and the inner reclining cover 6b are positioned so as not to overlap.

[0093] As described above, by forming the cutout portion 235 in the cover member 230A, it is possible to make it easier for an occupant seated behind the vehicle seat S3 to stretch their legs (improving the ease with which the occupant can put their legs in).

[0094] Next, a second modified example of the cover member 230 will be described with reference to Fig. 18. The cover member 230B of the second modified example is a plate-shaped cover that is attached to the left and right harnesses 220. More specifically, of the seat cushion 1, the seat back 2, the seat frame F, and the harness 220, the cover member 230B is attached to the harness 220.

[0095] The cover member 230B has a long cover main body 231, a first attachment portion 232, a second attachment portion 233, and a flexible member 236 that is attached to the upper end of the cover main body 231. The flexible member 236 is made of a flexible material such as rubber or sponge, and extends long in the seat width direction along the upper surface of the cover main body 231. The flexible member 236 is disposed between the seat back 2 (second back cover 50) and the cover main body 231 in the up-down direction.

[0096] As described above, the cover member 230B has the flexible member 236, which allows the seat back 2 to be smoothly rotated by the reclining device 5. That is, the lower end of the seat back 2 (first back cover 40, second back cover 50) can be brought into contact with the flexible member 236 as needed, allowing the seat back 2 (back frame 30) to be smoothly rotated.

[0097] Next, third and fourth modified examples of the cover member 230 will be described with reference to Figures 19 and 20. The cover member 230C of the third modified example is a plate-shaped cover that is disposed on the left side in the seat width direction and covers the harness 220 on the left side from behind. The cover member 230C is attached to the harness 220 on the left side. Note that no harness 220 is disposed on the right side.

[0098] The cover member 230C has a rectangular cover main body 231 and an attachment portion 232. More specifically, it is attached to the harness 220 among the seat cushion 1, the seat back 2, the seat frame F, and the harness 220. The cover member 230C covers the harness 220 and a part of the inner reclining cover 6b from behind.

[0099] On the other hand, the cover member 230D of the fourth modification is disposed on the right side in the seat width direction, and covers the harness 220 on the right side from behind. The cover member 230D is attached to the harness 220 on the right side. Note that no harness 220 is disposed on the left side.

[0100] The cover member 230D has a rectangular cover main body 231 and an attachment portion 232. More specifically, the cover member 230D covers the harness 220 and a portion of the inner reclining cover 6b from the rear.

[0101] The cover members 230C and 230D can cover the harness from the rear while being arranged compactly.

[0102] Next, a fifth modification of the cover member 230 will be described with reference to Figures 21 to 23. The cover member 230E of the fifth modification is a plate-shaped cover and includes an elongated cover main body 231, attachment portions 232 and 233, and a first elastic member 237 and a second elastic member 238, which are respectively provided on the front surface of the cover main body. The elastic members 237 and 238 are formed from an elastic material such as a rubber material. The elastic members 237 and 238 are fixed to the front surface of the cover main body 231 with an adhesive or the like.

[0103] 22, the first elastic member 237 is disposed between the inner reclining cover 6b (axis cover portion 6bb) and the cover body portion 231 in the seat front-rear direction, and is configured to contact the inner reclining cover 6b. This suppresses vibrations transmitted to the cover member 230, and prevents the cover member 230 from shifting out of position.

[0104] 23 , the second elastic member 238 is disposed between the cushion frame 10 (rear connecting frame 13) and the cover main body 231 in the seat front-rear direction, and is configured to come into contact with the rear connecting frame 13. This further reduces vibrations transmitted to the cover member 230, thereby preventing the cover member 230 from shifting out of position. Note that the cover member 230E may include only the first elastic member 237, or may include only the second elastic member 238.

[0105] Next, a sixth modification of the cover member 230 will be described with reference to Fig. 24. The cover member 230F of the sixth modification is a plate-shaped cover and includes an elongated cover main body 231 and attachment portions 232, 233 disposed on the left and right sides of the cover main body 231. The first attachment portion 232 and the second attachment portion 233 are attachment clips (locking clips) that are respectively fixed to the back surface of the cover main body 231. The first attachment portion 232 and the second attachment portion 233 are disposed along the up-down direction of the cover main body 231. The first attachment portion 232 and the second attachment portion 233 are each detachably attached to the harness 220 in the seat fore-and-aft direction.

[0106] The cover member 230F can be easily attached to the harness 220.

[0107] Fourth Embodiment Next, a vehicle seat S4 according to a fourth embodiment will be described with reference to Figures 25 and 26. Note that descriptions that overlap with those of the vehicle seats S, S2, and S3 described above will be omitted.

[0108] In the vehicle seat S4, the cover member 230 has a long cover main body 231 and a first attachment portion 232 and a second attachment portion 233 disposed on the left and right sides of the cover main body 231. The harness 220 is disposed on the left side in the seat width direction.

[0109] The first attachment portion 232 is detachably attached to the harness 220 located on the left side. The second attachment portion 233 is detachably attached to an attachment receiving member 240 (attachment receiving portion) provided on the rear surface of the lower end of the seat back 2 or the rear surface of the rear end of the seat cushion 1.

[0110] The attachment member 240 has a shape similar to that of the harness 220 and is a member to which the second attachment portion 233 is attached. The attachment member 240 is also referred to as a dummy member (dummy harness member). The attachment member 240 has upper and lower leg members 241 that protrude rearward from the rear surface of the inner reclining cover 6b (axis cover portion 6bb), and an extension member 242 that connects the upper and lower leg members 241 and extends vertically. The second attachment portion 233 is detachably attached to the extension member 242.

[0111] With the above configuration, even when the harness 220 is disposed at one lateral position in the seat width direction, the first attachment portion 232 can be attached to the harness 220, and the second attachment portion 233 can be attached to the attachment receiving member 240. This allows the cover member 230 to be stably attached. The attachment receiving member 240 may be provided on the rear surface of the lower end of the seat back 2 (second back cover 50) or the back frame 30. Alternatively, the attachment receiving member 240 may be provided on the rear surface of the rear end of the seat cushion 1 (base cover 20) or the cushion frame 10.

[0112] Even in the vehicle seat S4, the harness extending from the seat electrical device can be suitably covered by the cover member.

[0113] <<Method of Manufacturing Vehicle Seats of Third and Fourth Embodiments>> Next, a method of manufacturing the vehicle seat S3 will be described with reference to Figures 12 to 16. Note that in the method of manufacturing the vehicle seat S3, a description of manufacturing steps other than those described below will be omitted.

[0114] First, a seat cushion 1 (cushion module), a seat back 2 (back module), and a seat frame F (cushion frame 10, back frame 30) are prepared. The seat back 2 has a first back cover 40, a second back cover 50, a first pad material 2a, a second pad material 2b, and a cover material 2c. A back support plate 60 is attached between the first pad material 2a and the second pad material 2b.

[0115] Then, seat electrical devices (e.g., a control device 90, a blower device 100, and a seat heater 110) are attached inside the seat cushion 1 and the seat back 2. The seat cushion 1 is then attached to the cushion frame 10. The seat back 2 is also attached to the back frame 30. The seat cushion 1 and the seat back 2 are detachable from the seat frame F.

[0116] A harness 220 extending from the seat electrical device is then routed. Specifically, the harness 220 extends downward from the blower device 100 and further extends downward along the back surface of the first back cover 40 (cover side portion 41). The harness 220 is then divided into a branch harness 221 and a branch harness 222 at the lower portion of the first back cover 40. The branch harness 222 passes through the lower end of the back frame 30 (first back cover 40) and extends toward the front of the seat. The branch harness 222 then extends along the bottom surface of the cushion frame 10 (base cover 20) and is connected to the control device 90 provided on the bottom surface of the base cover 20.

[0117] A cover member 230 is provided in the rear portion of the seat cushion 1 so as to cover the harness 220 from behind. Specifically, the cover member 230 is attached to the harness 220 from behind. Of the seat cushion 1, seat back 2, seat frame F, and harness 220, the cover member 230 is attached to the harness 220.

[0118] The above manufacturing method makes it possible to manufacture a vehicle seat in which the harness extending from the seat electrical device can be suitably covered with the cover member.

[0119] <<Others>> In the above embodiment, the cover member 230 covers the harness 220 connected to the blower device 100, but this is not particularly limited. For example, the cover member 230 may cover a harness connected to another seat device (seat electrical device). Alternatively, the cover member 230 may cover a linear member such as a cable connected to another seat movement device.

[0120] 13 , in the above embodiment, the cover member 230 is attached to the harness 220 (only the harness 220), but this is not particularly limited. The cover member 230 only needs to be attached to at least the harness 220. For example, the cover member 230 may be attached to the harness 220 and the seat back 2 (second back cover 50), or the harness 220 and the back frame 30. Alternatively, the cover member 230 may be attached to the harness 220 and the seat cushion 1 (base cover 20), or the harness 220 and the cushion frame 10.

[0121] <<Additional Notes on Vehicle Interior Members of Third and Fourth Embodiments>> The vehicle seat described above includes a seat back, a seat cushion, and a seat frame supporting the seat back and the seat cushion. The vehicle seat further includes a linear member connected to a seat device provided on the seat back or the seat cushion, extending from the seat device and passing behind a rear portion of the seat cushion, and a cover member covering the linear member from behind at the rear portion of the seat cushion. The cover member may be attached to the linear member. This configuration provides a vehicle seat in which the linear member extending from a seat device attached to the seat body can be suitably covered by the cover member. Specifically, the vehicle seat includes a linear member extending from a seat device provided on the seat back or the seat cushion and passing behind the seat cushion, and a cover member covering the linear member from behind. The cover member is attached to the linear member itself. This allows the harness to be appropriately covered with the cover member in the rear portion of the seat cushion regardless of the position or routing of the harness.

[0122] In this case, the seat device may be a seat electrical device provided on the seat back, the linear member may be a harness connected to the seat electrical device and extending from the seat back toward the seat cushion, and the cover member may be a plate-shaped cover attached to the harness among the seat back, the seat cushion, and the harness. The seat frame may also include a cushion frame, the cushion frame having left and right side frames disposed laterally in the seat width direction and a rear connecting frame connecting rear portions of the left and right side frames, the harness passing behind the rear connecting frame, and the cover member may be attached to the harness among the seat back, the seat cushion, the seat frame, and the harness. With the above configuration, the harness extending from the seat electrical device and passing behind the cushion frame (rear connecting frame) can be appropriately covered by the cover member.

[0123] In this case, the seat cushion may include a reclining device that rotatably connects the seat back to the seat cushion, an outer reclining cover that covers the reclining device from the outside in the seat width direction, and an inner reclining cover that covers the reclining device from the inside in the seat width direction, and the cover member may cover the linear member and a portion of the inner reclining cover from the rear. This configuration allows the rear portion of the seat cushion to be more appropriately covered by the cover member. This prevents a gap from forming between the cover member and the inner reclining cover. Furthermore, compared to a case where the cover member is attached to the lower end of the seat back, the cover member can appropriately cover the harness even when the seat back rotates. This prevents the cover member from moving with the seat back.

[0124] In this case, the cover member preferably has a cover main body portion that is elongated in the seat width direction and an elastic member that is provided on the front surface of the cover main body and has elasticity, the elastic member being disposed between the inner reclining cover and the cover main body portion in the seat front-rear direction and configured to contact the inner reclining cover. By providing the elastic member as described above, vibrations transmitted to the cover member can be suppressed, and displacement of the cover member can be suppressed.

[0125] In this case, the linear members are arranged at left and right lateral positions in the seat width direction, the cover members are plate-shaped covers that are elongated in the seat width direction and are attached to the left and right linear members so as to cover the left and right linear members, and cutouts are formed in the lower end portions of the cover members for inserting the occupant's feet, and the cutouts extend elongatedly in the seat width direction. This configuration allows the cover members to be more suitably attached by the left and right linear members. Furthermore, forming the cutouts in the cover members makes it easier for an occupant seated further rearward than the vehicle seat to stretch their legs (improving the occupant's foot insertion ability).

[0126] In this case, it is preferable that the seatback is rotatably connected to the seat cushion by a reclining device, and the cover member has a cover main body portion that is elongated in the seat width direction and a flexible member attached to an upper end of the cover main body and having flexibility, and the flexible member is configured to contact a lower end of the seatback when the seatback is rotated by the reclining device. As described above, the cover member has a flexible member, so that the seatback can be smoothly rotated by the reclining device. The lower end of the seatback can be brought into contact with the flexible member.

[0127] In this case, the linear member may be disposed at one side position in the seat width direction and pass behind the connecting portion of the seat back and the seat cushion, and the cover member may be disposed at the one side position in the seat width direction and cover the linear member from behind. With the above configuration, the cover member can be disposed compactly and can cover the linear member from behind.

[0128] In this case, the cover member may have a cover main body portion that is elongated in the seat width direction and an elastic member that is provided on the front surface of the cover main body and has elasticity, the elastic member being disposed between the rear connecting frame and the cover main body portion in the seat front-rear direction and configured to contact the rear connecting frame. By providing the elastic member as described above, vibrations transmitted to the cover member can be suppressed, and displacement of the cover member can be suppressed.

[0129] In this case, the cover member preferably has a cover main body portion that is elongated in the seat width direction, and an attachment portion that is fixed to the back surface of the cover main body portion and is detachably attached to the linear member, and the attachment portion is attached to the linear member in the seat front-rear direction. With the above configuration, it is possible to easily attach the cover member to the linear member.

[0130] In this case, the cover member may have a cover main body portion elongated in the seat width direction and first and second attachment portions disposed on the left and right sides of the cover main body portion, the linear member being disposed on one side in the seat width direction, the first attachment portion being detachably attached to the linear member, and the second attachment portion being detachably attached to a receiving portion provided on the rear surface of the lower end portion of the seat back or the rear surface of the rear end portion of the seat cushion. With the above configuration, even if the linear member is disposed on one side in the seat width direction, the first attachment portion can be attached to the linear member, and the second attachment portion can be attached to a receiving portion of the seat main body (seat back, seat cushion). This allows the cover member to be stably attached.

[0131] In this case, it is preferable that at least one of the seat back and the seat cushion is detachably attached to the seat frame, the linear member is attached to the seat back or the seat cushion, and the cover member is attached to the linear member. With the above configuration, even in the case of a seat in which the seat body is detachably attached to the seat frame, the cover member can be preferably attached (post-installed). In other words, there is no need to attach the cover member to the seat body or the seat frame, and the cover member can be attached when needed.

[0132] Fifth Embodiment Next, a vehicle seat S5 of a fifth embodiment will be described with reference to Figures 27 to 33. The vehicle seat S5 realizes a seat that allows for the optimal placement of a linear member (harness) extending from a seat device (seat electrical device) provided on the seat body. Furthermore, the vehicle seat S5 realizes a seat that prevents interference between a linear member extending from the seat back to the seat cushion and the lower portion of the seat back. Descriptions that overlap with those of the vehicle seats S, S2 to S4 described above will be omitted.

[0133] As shown in Fig. 27, the vehicle seat S5 includes a seat cushion 1, a seat back 2, a headrest 3, and a seat frame F (cushion frame 10, back frame 30) that supports the seat cushion 1, the seat back 2, and the headrest 3. As shown in Fig. 27, the vehicle seat S5 also includes a rail device 4 that supports the seat body (seat frame F) so that it can move back and forth relative to the vehicle floor, and a reclining device 5 that rotatably connects the seat back 2 (back frame 30) to the seat cushion 1 (cushion frame 10). The vehicle seat S5 also includes a control device 90 attached inside the seat cushion 1, and a blower device 100 and a seat heater 110 that are each provided inside the seat back 2.

[0134] The reclining device 5 is covered from the outside by a reclining cover 6. As shown in Figures 27 and 28, the reclining cover 6 is a resin cover and includes an outer reclining cover 6a that covers the reclining device 5 from the outside in the seat width direction and an inner reclining cover 6b that covers the inside in the seat width direction. The inner reclining cover 6b includes a reclining cover portion 6ba that faces the reclining main body 5a and covers the reclining main body 5a from the inside, and a shaft cover portion 6bb that faces the back rotation shaft 5b and covers the back rotation shaft 5b from the rear. The shaft cover portion 6bb protrudes inward from the inner surface of the reclining cover portion 6ba. Note that the reclining covers 6 (6a, 6b) may be configured as an integrated cover.

[0135] <<Back Frame, Seat Back (Back Cover)>> The back frame 30 is a rectangular frame-like body and includes back side frames 31 arranged on the left and right sides, an upper frame 32 connecting the upper ends of the back side frames 31, and a lower frame 33 connecting the lower ends of the back side frames 31. Cover assembly portions 34 for assembling the first back cover 40 and the second back cover 50 are formed on the outer edge portions of each of the back side frames 31, the upper frame 32, and the lower frame 33. The back frame 30 is sandwiched between the first back cover 40 (front back cover) and the second back cover 50 in the seat front-rear direction, and is assembled to these back covers 40, 50.

[0136] As shown in FIG. 28 , a frame extension 33a is formed in the center of the lower frame 33 in the seat width direction, bending from the front end of the main body of the lower frame 33 and extending upward. The frame extension 33a is a frame portion that is elongated in the seat width direction. That is, the lower frame 33 (the center portion of the lower frame 33) is a generally U-shaped frame in a side view of the seat. As shown in FIG. 28 , a plate bracket 36 that extends outward in the seat width direction is fixed to a side portion (left side portion) of the frame extension 33a. A harness hook 37 for hooking a harness 320 is formed at the extending end of the plate bracket 36. In addition, a harness escape portion 38 for passing the harness is formed in a side portion of the lower frame 33. Details will be described later.

[0137] The second back cover 50, also referred to as the rear back cover, is a plate-like frame. The second back cover 50 includes cover side portions 51 arranged on the left and right sides, an upper cover portion 52 connecting the upper portions of the cover side portions 51, and a lower cover portion 53 connecting the lower portions of the cover side portions 51. Specifically, an opening 54 is formed in the center of the second back cover 50. The front surfaces of the cover side portions 51, the upper cover portion 52, and the lower cover portion 53 are each formed with an assembly portion 55 for assembly to the back frame 30 (cover assembly portion 34) and the first back cover 40 (assembly portion 45). Furthermore, the lower ends of the left and right cover side portions 51 are formed with fitting holes 56 for fitting the reclining device 5 (recliner main body 5a, back rotation shaft 5b).

[0138] 28 and 29, a harness passage 57 for passing the harness 320 and reinforcing ribs 58 and 59 are formed on the side of the cover lower portion 53. Details will be described later.

[0139] For example, the first back cover 40 and the second back cover 50 are positioned so as to sandwich the back frame 30, and the cover assembly portion 34, the assembly portion 45, and the assembly portion 55 are assembled (by bolting from the rear) to assemble the back covers 40, 50 to the back frame 30.

[0140] 30 to 33 , the harness 320 is a linear member that extends downward from a side portion of the blower device 100 and further extends downward along the back surface of the side portion of the seat back 2 (first back cover 40). The harness 320 is divided into a branch harness 321 and a branch harness 322 at the lower portion of the seat back 2 (first back cover 40).

[0141] The branch harness 321 extends from the harness 320 through a harness hole (not shown) to the front surface of the first back cover 40. The branch harness 321 is connected to the seat heater 110 provided on the front surface of the first back cover 40.

[0142] As shown in FIGS. 31 and 33 , the branch harness 322 passes from the harness 320 through the lower end of the back frame 30 (first back cover 40) and extends toward the front of the seat. It then extends along the bottom surface of the cushion frame 10 (base cover 20) and is connected to the control device 90 provided on the bottom surface of the base cover 20 (cover front portion 22). In other words, the harness 320 (branch harness 322) is connected to the blower device 100, extends downward from the blower device 100, and extends from the seat back 2 toward the seat cushion 1. At this time, the branch harness 322 passes behind the rear portion of the seat cushion 1. More specifically, it passes behind the cushion frame 10 (rear connecting frame 13) and extends toward the front of the seat along the outer periphery of the rear connecting frame 13. Hereinafter, the branch harness 322 will also be referred to as the harness 320.

[0143] The harnesses 320 are disposed at left and right lateral positions in the seat width direction, as shown in Fig. 33. The left and right harnesses 320 each extend downward from the blower device 100, but this is not particularly limited. For example, the left harness 320 may extend downward from the blower device 100, and the right harness 320 may extend downward from another seat device (such as a side support device or a vibration device).

[0144] 28, 30, and 31, a harness hook portion 37 for hooking the harness 320 is provided on a side portion of the back frame 30 (lower frame 33). As shown in Fig. 32, a harness escape portion 38 for passing the harness is formed on a side portion of the back frame 30 (lower frame 33).

[0145] As shown in Figures 30 and 31 , the harness hook portion 37 is, for example, a hook clip and is attached to a plate bracket 36 fixed to the lower frame 33 (frame extension portion 33a). As shown in Figure 30 , the plate bracket 36 has a bracket extension portion 36a extending outward in the seat width direction from the frame extension portion 33a, and upper and lower bracket guide portions 36b protruding upward and downward, respectively, from the extending end of the bracket extension portion 36a. A through hole is formed in the extending end of the bracket extension portion 36a, into which the harness hook portion 37 is attached. The bracket guide portion 36b supports the harness 320 from behind and guides the harness 320.

[0146] As shown in Figure 32, the harness escape portion 38 is formed by cutting out the front end of the side portion of the lower frame 33. More specifically, the harness escape portion 38 is formed by cutting out the front end of the lower frame 33 in a curved shape. The harness hook portion 37 and the harness escape portion 38 are positioned so as to overlap when viewed from above the seat. This allows the harness 320 to be routed in an optimal manner.

[0147] 28 to 32 , a harness passing portion 57 for passing the harness 320 is formed in a side portion of the lower end portion (cover lower portion 53) of the second back cover 50. In addition, reinforcing ribs 58, 59 (reinforcing portions) protruding from the front surface of the cover lower portion 53 are formed in a portion of the cover lower portion 53 adjacent to the harness passing portion 57.

[0148] The harness passing portion 57 is a cutout portion formed by cutting out the front end of a lateral portion of the cover lower portion 53. An inner surface 57a on the inner side of the harness passing portion 57 in the seat width direction extends linearly toward the rear of the seat. In other words, the inner surface 57a extends along the direction in which the harness passing portion 57 is formed. Alternatively, the inner surface 57a extends along a direction perpendicular to the width direction of the harness passing portion 57. When the harness 320 abuts against the inner surface 57a of the harness passing portion 57, movement of the harness 320 in the seat width direction is restricted.

[0149] An inner surface 57b of the harness-passing portion 57 on the outer side in the seat width direction extends linearly in a direction inclined with respect to the seat front-rear direction. In other words, the inner surface 57b extends at an angle with respect to the direction in which the harness-passing portion 57 is formed. Alternatively, the inner surface 57b extends at an angle with respect to the width direction of the harness-passing portion 57. When the harness 320 abuts against the inner surface 57b of the harness-passing portion 57, the harness 320 is guided into the harness-passing portion 57. In other words, the harness 320 can be guided into the harness-passing portion 57 (inner surface 57b).

[0150] As shown in Figure 29, the first reinforcing rib 58 is a reinforcing portion that protrudes from the front surface of the cover lower portion 53 and extends in the seat front-rear direction. In other words, the first reinforcing rib 58 extends in the direction in which the harness passage portion 57 is formed. The second reinforcing rib 59 is connected to the first reinforcing rib 58 and extends in the seat width direction. In other words, the second reinforcing rib 59 extends in a direction intersecting (perpendicular to) the first reinforcing rib 58. As shown in Figure 29, the harness passage portion 57 is disposed at a position surrounded by the first reinforcing rib 58 and the second reinforcing rib 59.

[0151] 30 to 33, in the above configuration, the harness 320 extends downward from the blower device 100, passes through the harness escape portion 38 and the harness passage portion 57, and extends past the rear of the rear connecting frame 13. Therefore, the harness 320, which extends from the seat back 2 to the seat cushion 1 and passes past the rear of the rear portion of the cushion frame 10 (rear connecting frame 13), can be suitably positioned.

[0152] In the above configuration, as shown in Figures 30 to 32, the harness escape portion 38, the harness hook portion 37, and the harness passage portion 57 are arranged in the same position in the seat width direction. Specifically, the harness escape portion 38 and the harness passage portion 57 are arranged in positions where they overlap when viewed from above. Furthermore, a portion of the harness passage portion 57 (the inner surface 57b) and a portion of the harness hook portion 37 are arranged in positions where they overlap when viewed from above. This allows for more optimal placement of the harness 320 extending from the blower device 100. Furthermore, the harness 320 can be easily hooked onto the harness hook portion 37 and inserted into the harness escape portion 38 and the harness passage portion 57.

[0153] In the above configuration, as shown in Figure 32, the rear end of the base cover 20 (rear cover portion 23) and a portion of the harness passage portion 57 are positioned so as to overlap when viewed from above the seat. That is, they are positioned so as not to completely overlap. The harness 320 passes through the harness passage portion 57 and extends behind the rear end of the base cover 20. This allows the seat back 2 and the seat cushion 1 to be positioned compactly while still ensuring a passage for the harness 320 to extend. That is, the seat back 2 and the seat cushion 1 can be connected as close together as possible.

[0154] 33, in the above configuration, the harness passage portion 57 is positioned more inward than the inner reclining cover 6b (axis cover portion 6bb) in the seat width direction, thereby preventing interference between the harness 320 and the reclining cover 6 (inner reclining cover 6b).

[0155] The vehicle seat S5 allows for the optimal placement of a harness extending from the seat electrical device (blower device) provided in the seat body (seat back), and in particular, prevents interference between the harness extending from the seat back to the seat cushion and the lower portion of the seat back.

[0156] <<Method of Manufacturing Vehicle Seat>> Next, a method of manufacturing the vehicle seat S5 will be described with reference to Figures 27 to 33. Note that in the method of manufacturing the vehicle seat S5, a description of manufacturing steps other than those described below will be omitted.

[0157] First, a seat cushion 1 (cushion module), a seat back 2 (back module), and a seat frame F (cushion frame 10, back frame 30) are prepared. The seat back 2 has a first back cover 40, a second back cover 50, a first pad material 2a, a second pad material 2b, and a cover material 2c. A back support plate 60 is attached between the first pad material 2a and the second pad material 2b.

[0158] Then, seat electrical devices (e.g., a control device 90, a blower device 100, and a seat heater 110) are attached inside the seat cushion 1 and the seat back 2. The seat cushion 1 is then attached to the cushion frame 10. The seat back 2 is also attached to the back frame 30. The seat cushion 1 and the seat back 2 are detachable from the seat frame F.

[0159] Then, a harness 320 extending from the seat electrical device is routed. Specifically, the harness 320 is connected to the blower device 100, extends downward from the blower device 100, and extends from the seat back 2 toward the seat cushion 1. At this time, the harness 320 (branch harness 322) passes behind the rear portion of the seat cushion 1. More specifically, the harness 320 passes behind the cushion frame 10 (rear connecting frame 13) and extends toward the front of the seat along the outer periphery of the rear connecting frame 13.

[0160] At this time, the harness 320 is routed so that the harness 320 is hooked onto the harness hook portion 37 formed on the side portion of the back frame 30 (lower frame 33). The harness 320 is also routed so that the harness 320 passes through a harness passing portion 57 formed on the side portion of the lower end portion (cover lower portion 53) of the second back cover 50. Note that a portion of the harness passing portion 57 and a portion of the harness hook portion 37 are located at the same position in the seat width direction.

[0161] The above manufacturing method makes it possible to manufacture a vehicle seat in which the harness extending from the seat electrical device provided in the seat back can be suitably arranged.

[0162] 30 to 33 , in the above embodiment, the harness hook portion 37, the harness escape portion 38, and the harness passage portion 57 are used to route the harness 320 extending from the blower device 100, but this is not particularly limited. For example, the harness hook portion 37, the harness escape portion 38, and the harness passage portion 57 may be used to route a harness extending from another seat device (seat electrical device). Alternatively, the hook portion 37, the escape portion 38, and the passage portion 57 may be used to route a linear member such as a cable extending from a seat moving device.

[0163] In the above embodiment, as shown in Figures 30 to 32, the harness hook portion 37 and the harness escape portion 38 are formed in the lower portion of the back frame 30, but this is not particularly limited. For example, the harness hook portion and the harness escape portion may be formed in the lower portion of the seat back 2 (first back cover 40, second back cover 50). Alternatively, the harness hook portion and the harness escape portion may be formed in the rear end portion of the cushion frame 10 or the rear end portion of the base cover 20.

[0164] In the above embodiment, as shown in Figures 30 to 32, the harness-passing portion 57 is formed in the lower portion (lower end portion) of the second back cover 50, but this is not particularly limited. For example, the harness-passing portion may be formed in the lower portion of the first back cover 40, or may be formed in the lower portion of the back frame 30. Alternatively, the harness-passing portion may be formed in the rear end portion of the cushion frame 10, or may be formed in the rear end portion of the base cover 20.

[0165] <<Additional Notes on the Vehicle Seat of the Fifth Embodiment>> The vehicle seat described above includes a seat back, a seat cushion, and a seat frame supporting the seat back and the seat cushion. The vehicle seat includes a linear member connected to a seat device provided on the seat back or the seat cushion, extending from the seat device and passing behind a rear portion of the seat cushion. The seat frame includes a back frame, and the seat back includes a plate-shaped back cover attached to the back frame. A through-hole is formed in a lower portion of the back cover for passing the linear member. A hook portion is formed in a lower portion of the back frame or the back cover for hooking the linear member. A portion of the through-hole and a portion of the hook portion may be positioned at the same position in the seat width direction. This configuration provides a vehicle seat that allows for optimal placement of a linear member extending from a seat device provided on a seat body. Specifically, a through-hole is formed in a lower portion of the seat back (back cover) of the vehicle seat for passing the linear member. This prevents interference between the linear member extending from the seat back to the seat cushion and the lower portion of the seat back. A hook portion for hooking the linear member is formed in the lower portion of the back frame (back cover) of the vehicle seat. A portion of the through-hole and a portion of the hook portion are positioned at the same position in the seat width direction. This allows for more optimal placement of the linear member extending from the seat device.

[0166] In this case, the seat device may be a seat electrical device provided on the seat back, the wire member may be a harness connected to the seat electrical device and extending from the seat back toward the seat cushion, the threading portion may be formed at the lower end of the back cover, and the hook portion may be provided at a lower portion of the back frame, and the harness may be hooked on the front or rear surface of the back frame. This configuration can prevent interference between the harness extending from the seat back to the seat cushion and the lower end of the seat back. Furthermore, the hook portion allows the harness to be routed appropriately.

[0167] In this case, the seat frame preferably includes a cushion frame, the cushion frame having left and right cushion side frames disposed laterally in the seat width direction, and a rear connecting frame connecting rear portions of the left and right cushion side frames, and the harness extends downward from the seat electrical device, passes through the through-portion, and extends past the rear of the rear connecting frame. With the above configuration, the harness can be suitably positioned, extending from the seat back to the seat cushion and passing behind the rear portions of the cushion frames (rear connecting frame).

[0168] In this case, the through-portion may be a cutout formed in the lower end of the back cover, and one inner surface of the through-portion in the seat width direction may be formed along a direction perpendicular to the width direction of the through-portion, and may abut against the linear member to restrict movement of the linear member in the seat width direction. With the above configuration, the linear member can be inserted into the through-portion (cutout), and movement of the linear member can be restricted by the through-portion.

[0169] In this case, the other inner surface of the through-portion in the seat width direction may be formed along a direction inclined with respect to the width direction of the through-portion, thereby guiding the linear member into the through-portion. With the above configuration, it is possible to easily insert the linear member into the through-portion during the work of routing the linear member.

[0170] In this case, it is preferable that the inner surface of the through-portion on the inner side in the sheet width direction is formed along a direction perpendicular to the width direction of the through-portion, the inner surface of the through-portion on the outer side in the sheet width direction is formed along a direction inclined with respect to the width direction of the through-portion, and the inner surface of the outer side of the through-portion and the hook portion are positioned at the same position in the sheet width direction. With the above configuration, it is easy to hook the linear member on the hook portion and insert the linear member into the through-portion. In other words, the linear member can be positioned in a preferable manner.

[0171] In this case, the seat frame may have a cushion frame, and the seat cushion may have a plate-shaped base cover attached to the cushion frame and supporting a seated occupant from below, a padding attached to the upper surface of the base cover, and a cover material covering the base cover and the padding, the rear end of the base cover and a part of the through-hole may be positioned so as to overlap in a top view of the seat, and the linear member may pass through the through-hole and extend behind the rear end of the base cover. With this configuration, the seat back and the seat cushion can be arranged compactly while ensuring a passage for extending the linear member from the seat back to the seat cushion. In other words, the seat back and the seat cushion can be assembled as close together as possible.

[0172] In this case, the seat back may be provided with a reclining device that rotatably connects the seat back to the seat cushion, an outer reclining cover that covers the reclining device from the outside in the seat width direction, and an inner reclining cover that covers the reclining device from the inside in the seat width direction, and the through-hole may be positioned inside the inner reclining cover in the seat width direction. With the above configuration, interference between the linear member and the reclining cover (inner reclining cover) can be suppressed.

[0173] In this case, the back frame has left and right side frames arranged laterally in the seat width direction and a lower frame connecting lower portions of the left and right side frames, the lower frames are formed with a recessed portion for passing the linear member, the through portion and the recessed portion are arranged at a position where they overlap in a top view, and the linear member passes through the recessed portion and the through portion and extends behind the rear portion of the seat cushion. As described above, by forming a recessed portion in the back frame (lower frame), it is possible to prevent interference between the linear member and the back frame.

[0174] In this case, the through-hole may be formed at the lower end of the back cover, and a reinforcing portion may be formed in a portion of the back cover adjacent to the through-hole, the reinforcing portion protruding from the surface of the back cover, and the reinforcing portion may extend along the direction in which the through-hole is formed. As described above, by providing the reinforcing portion, it is possible to suppress a decrease in rigidity due to the formation of the through-hole in the seat back (back cover).

[0175] In this case, it is preferable that at least one of the seat back and the seat cushion is detachably attached to the seat frame, and the linear member is attached to the seat back or the seat cushion. With the above configuration, the linear member can be suitably arranged in a configuration in which the seat back (seat cushion) is detachably attached to the seat frame.

[0176] The vehicle seat according to the present invention has been mainly described above. However, the above embodiment is merely an example for facilitating understanding of the present invention and is not intended to limit the present invention. The present invention may be modified or improved without departing from the spirit thereof, and of course, the present invention also includes equivalents thereof.

[0177] DESCRIPTION OF EMBODIMENTS <First embodiment> S Vehicle seat (vehicle seat) F Seat frame 1 Seat cushion (cushion module) 1a First pad material 1b Second pad material 1c Cover material 2 Seat back (back module) 2a First pad material 2aa Convex portion 2b Second pad material 2c Cover material 3 Headrest 3a Pad material 3b Cover material 4 Rail device 4a Lower rail 4b Upper rail 4c Lock member 5 Reclining device 5a Reclining body 5b Back rotation shaft 5c Spiral spring 10 Cushion frame 11 Side frame 12 Pan frame 13 Rear connecting frame 14 Elastic spring (elastic member) 15 Support plate 16 Cover assembly portion 20 Base cover (cushion cover) 21 Cover side portion 22 Cover front portion 23 Cover rear portion 24 Assembly portion 25 Attachment / detachment portion 30 Back frame 31 Back side frame 32 Upper frame 33 Lower frame 34 Cover assembly portion 35 Mounting hole 40 First back cover (front back cover, back cover) 41 Cover side portion 42 Cover upper portion 43 Cover lower portion 44 Opening 45 Assembly portion 46 Bracket (head assembly bracket) 47 Recess 50 Second back cover (rear back cover) 51 Cover side portion 52 Cover upper portion 53 Cover lower portion 54 Opening 55 Assembly portion 56 Fitting hole (reclining fitting hole) 60 Back support plate (pressure receiving plate) 61 Plate attachment portion 62 Relief portion 70 Head frame 71 Frame body 72 Outer edge flange 73 Back assembly portion 74 Cover assembly portion 80 Head cover 81 Cover body 82 Outer edge flange 83 Opening 84 Assembly portion 90 Control device 91 Bracket 100 Blower device (seat electrical device, seat device) 101 Blower body 102 Intake port 103 Duct 110 Seat heater 120 First harness (first linear member) 125 Connector (connecting member) 125a Mounting clip 130 Second harness (second linear member) 140 Third harness (third linear member) 145 Second connector (second connecting member)150 Connector attachment portion 151 Connector attachment hole 152 Harness passage hole <Second embodiment> S2 Vehicle seat 150A Connector attachment portion 151A First member 152A Second member <Third embodiment> S3 Vehicle seat 6 Reclining cover 6a Outer reclining cover 6b Inner reclining cover 6ba Reclining cover portion 6bb Axis cover portion 24 Frame assembly portion 25 Frame attachment / detachment portion 220 Harness (linear member) 221 Branch harness 222 Branch harness 230, 230A to 230F Cover member (harness cover member) 231 Cover main body portion 232 First attachment portion 233 Second attachment portion 234 Attachment member 235 Notch portion 236 Flexible member 237 First elastic member 238 Second elastic member <Fourth embodiment> S4 Vehicle seat 240 Mounting member (mounting portion, dummy member) 241 Leg member 242 Extension member <Fifth embodiment> S5 Vehicle seat (vehicle seat) 6 Reclining cover 6a Outer reclining cover 6b Inner reclining cover 6ba Reclining cover portion 6bb Axis cover portion 30 Back frame 31 Back side frame 32 Upper frame 33 Lower frame 33a Frame extension portion 34 Cover assembly portion 35 Mounting hole 36 Plate bracket 36a Bracket extension portion 36b Bracket guide portion 37 Harness hook portion (hook portion) 38 Harness escape portion (escape portion) 50 Second back cover (rear back cover) 51 Cover side portion 52 Cover upper portion 53 Cover lower portion 54 Opening 55 Assembly portion 56 Fitting hole (recliner fitting hole) 57 Harness passing portion (passing portion, notch portion) 57a, 57b Inner surface 58 First reinforcing rib (reinforcing portion) 59 Second reinforcing rib (reinforcing portion) 320 Harness (first linear member) 321 Branch harness 322 Branch harness

Claims

1. A vehicle seat comprising a seat back, a seat cushion, and a seat frame supporting the seat back and the seat cushion, comprising: a first linear member connected to a seat device provided on the seat back or the seat cushion and extending from the seat device; a connecting member connected to an extending end of the first linear member; and an attachment portion provided to protrude from a surface of the seat back, the seat cushion, or the seat frame and for attaching the connecting member, wherein a through-hole is formed in a portion of the attachment portion different from the portion to which the connecting member is attached, for passing therethrough the first linear member or a second linear member different from the first linear member and extending from the connecting member.

2. The vehicle seat described in claim 1, characterized in that the seat device is a seat electrical device provided on the seat back, the first linear member is a first harness extending from an upper portion toward a lower portion of the seat back, the connecting member is a connector connected to an extended end of the first harness, the attachment portion is a connector attachment portion provided so as to protrude from the front surface toward the rear surface of the seat back, and the through-hole is a harness through-hole.

3. The vehicle seat according to claim 2, characterized in that the connector is attached to the connector attachment portion on the rear surface of the lower portion of the seat back, and the second linear member is a second harness that extends from the connector through the harness insertion hole toward the front surface of the seat back.

4. The vehicle seat according to claim 2, wherein the harness-passing hole is a hole that penetrates in a direction that intersects with the direction in which the connector mounting portion protrudes.

5. A vehicle seat as described in claim 2, characterized in that the connector is attached to the protruding surface of the connector mounting portion, and the harness-through hole is formed on the side of the surface of the connector mounting portion in the direction in which the connector mounting portion protrudes.

6. A vehicle seat according to claim 5, characterized in that the connector is attached to the center of the protruding surface of the connector attachment portion, the harness-passing hole is formed on the side surface of the connector attachment portion, and the opening of the harness-passing hole extends from the side surface to the edge portion of the protruding surface.

7. The vehicle seat described in claim 1, characterized in that the seat frame includes a back frame, the seat back includes a plate-shaped back cover attached to the back frame and supporting a seated occupant from behind, a padding material attached to the front of the back cover, and a back support plate provided between the back cover and the padding material and supporting the padding material, the mounting portion being formed on the back cover, and the back support plate covering a portion of the mounting portion when viewed from the front of the seat back.

8. A vehicle seat as described in claim 7, characterized in that a recess for exposing the mounting portion is cut out in a lower portion of the back support plate facing the mounting portion, and the edge portion of the back support plate where the recess is formed is curved or inclined.

9. The vehicle seat described in claim 1, characterized in that the mounting portion is provided so as to protrude from the surface of the seat back, the seat cushion or the seat frame, and has a first member for mounting the connecting member and a second member for forming the through-hole, and the connecting member mounted to the first member is positioned in a position facing the second member.

10. The vehicle seat described in claim 9, characterized in that the seat frame includes a back frame, the back frame having left and right side frames arranged laterally in the seat width direction and a lower frame connecting the lower portions of the left and right side frames, the seat back including a plate-shaped back cover attached to the back frame and supporting the seated occupant from behind, and a padding material attached to the front of the back cover, the first member being arranged to protrude forward from the lower portions of the side frames or the lower frame, and the second member being arranged to protrude rearward from the lower portion of the back cover.

11. The vehicle seat according to claim 1, wherein at least one of the seat back and the seat cushion is detachably attached to the seat frame, and the first linear member, the connecting member and the attachment portion are attached to the seat back or the seat cushion.

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