Vehicle seats

Abstract

A vehicle seat is provided that allows for suitable arrangement of a linear member extending from a seat device and a connecting member at an end of the linear member. [Solution] A vehicle seat S1 includes a seat cushion, a seat back 2, a seat frame, and a seat electrical device provided on the seat cushion or the seat back. The vehicle seat also includes a first harness 120 extending from the seat electrical device, a connector 125 (connection portion) connected to an extended end of the first harness 120, and a connector attachment portion 150 that protrudes from the rear surface of the seat back 2 (first back cover 40) and to which the connector 125 is attached. A harness passing hole 152 for passing the first harness 120 or the second harness 130 is formed in a portion of the connector attachment portion 150 different from the portion to which the connector 125 is attached.

Description

[Technical Field]

[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. [Background technology]

[0002] Conventionally, a vehicle seat has been known that includes a seat back, a seat cushion, a seat frame (back frame, cushion frame), and a seat electrical device provided on the seat back or the seat cushion (see, for example, Patent Document 1). The vehicle seat described in Patent Document 1 includes an electrical component attached to a back frame via a bracket, and a harness connected to the electrical component. The bracket holds the harness and the connector at the end of the harness, ensuring ease of connection between the electrical component and the harness. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-154172 Summary of the Invention [Problem to be solved by the invention]

[0004] In a vehicle seat such as that disclosed in Patent Document 1, it was necessary to suitably position the linear member (harness) extending from the seat device (seat electrical device) and the connecting member (connector) at the extending end of the linear member. For example, there has been a demand for efficient use of the space inside the seat body (seat back, seat cushion) to route linear members and connecting members and to install them so as not to interfere with other components.

[0005] The object of the present invention is to provide a vehicle seat that allows for the suitable positioning 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 can be installed by utilizing the space inside the seat body to arrange linear members (harnesses) and connecting members (connectors) so that they do not interfere with other components. [Means for solving the problem]

[0006] The above problem is solved by the vehicle seat of the present invention, which provides a vehicle seat comprising a seat back, a seat cushion, and a seat frame supporting the seat back and the seat cushion, and which has 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 provided so as to protrude from the surface of the seat back, the seat cushion, or the seat frame, and for attaching the connecting member, and in a portion of the attachment portion different from the portion to which the connecting member is attached, a through hole is formed for passing the first linear member or a second linear member extending from the connecting member that is different from the first linear member. The above configuration makes it possible to realize a vehicle seat in which the linear member extending from the seat device attached to the seat body and the connecting member at the extending end of the linear member can be suitably positioned. More specifically, the vehicle seat has an attachment portion that protrudes from the surface of the seat back, seat cushion, or seat frame and to which a connecting member is attached. A through-hole for passing a linear member is formed in a portion of the attachment portion different from the portion to which the connecting member is attached. That is, a through-hole is formed in a predetermined portion of the protruding attachment portion, making it possible to route the linear member. This allows the linear member and connecting member to be placed using the space inside the seat body (the space created by the formation of the attachment portion). It also reduces interference with other components.

[0007] In this case, the seat device 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 of the seat back toward a lower portion thereof, the connection portion may be a connector connected to an extended end of the first harness, the attachment portion may be a connector attachment portion provided so as to protrude from the front surface of the seat back toward the rear surface thereof, and the through-hole may be a harness through-hole. With the above-described configuration, it is possible to suitably arrange the harness extending from the seat electrical device and the connector at the extending end of the harness.

[0008] In this case, the connector is attached to the connector mounting portion on the rear surface of the lower part of the seat back, and the second linear member is a second harness that extends from the connector through the harness passing hole toward the front surface of the seat back. With the above configuration, a harness insertion hole is formed in a predetermined portion of the protruding connector attachment portion, and the second harness can be routed appropriately.

[0009] In this case, it is preferable that the harness passage hole is a hole that penetrates in a direction that intersects with the protruding direction of the connector mounting portion. Preferably, the connector is attached to a protruding surface of the connector attachment portion, and the harness passage hole is formed on a side surface of the connector attachment portion in the protruding direction of the connector attachment portion. The above configuration allows the harness and connector to be arranged while saving space. Specifically, when routing the harness through the harness-through hole, space can be saved in the protruding direction of the connector attachment portion (for example, in the front-rear direction of the seat).

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

[0011] In this case, the seat frame includes a back frame, and the seat back includes a plate-shaped back cover attached to the back frame and supporting the 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, and the mounting portion is formed on the back cover, and the back support plate covers a portion of the mounting portion when viewed from the front of the seat back. With the above-described configuration, the back support plate can protect the mounting portion (part of the mounting portion).

[0012] In this case, a recess is preferably formed in the lower portion of the back support plate facing the mounting portion to expose the mounting portion, and the edge portion of the back support plate where the recess is formed is preferably 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 is arranged to protrude from the surface of the seat back, the seat cushion or the seat frame, and has a first member to which the connection portion is attached and a second member that forms the through hole, and the connection portion attached to the first member is preferably positioned in a position opposite the second member. Even with the above configuration, the linear member extending from the seat device attached to the seat body and the connecting member at the extending end of the linear member can be suitably arranged.

[0014] In this case, the seat frame includes a back frame, which has 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 includes a plate-shaped back cover attached to the back frame and supporting the seat occupant from behind, and a padding material attached to the front surface of the back cover, and the first member is arranged to protrude forward from the lower portions of the side frames or the lower frame, and the second member is arranged to protrude rearward from the lower portion of the back cover. With the above configuration, the connector and the harness can be arranged compactly using the mounting portion (first member, second member).

[0015] In this case, at least one of the seat back and the seat cushion is attached so as to be detachable from 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 attachment portion in a seat in which the seat back (seat cushion) is detachable from the seat frame. [Effects of the Invention]

[0016] According to the present invention, a vehicle seat can be realized in which linear members extending from a seat device attached to the seat body and connecting members can be suitably arranged. Furthermore, the linear members and connecting members can be arranged using the space inside the seat body (the space created by forming the mounting portion). Furthermore, interference with other components can be suppressed. Furthermore, according to the present invention, the harness extending from the seat electrical device and the connector at the extending end of the harness can be preferably arranged. Furthermore, according to the present invention, a harness insertion hole can be formed in a predetermined portion of the protruding connector attachment portion, allowing the second harness to be routed in a suitable manner. Furthermore, according to the present invention, harnesses and connectors can be arranged while saving space. Furthermore, according to the present invention, it is easier to pass the harness through the harness passage hole, and the harness and connector can be positioned closer to each other. Furthermore, according to the present invention, the back support plate can protect the mounting portion (part of the mounting portion). Furthermore, according to the present invention, when routing the harness, interference between the harness and the back support plate can be suppressed. Furthermore, according to the present invention, the connector and the harness can be arranged compactly by the attachment portion (first member, second member). Furthermore, according to the present invention, in a seat in which the seat back (seat cushion) is detachable from the seat frame, the linear member and the attachment portion can be suitably arranged. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a perspective view of a vehicle seat according to a first embodiment. [Figure 2] FIG. 2 is a perspective view of the vehicle seat as seen from the rear. [Figure 3] FIG. 2 is an exploded perspective view of a cushion frame and a seat cushion. [Figure 4] FIG. 2 is an exploded perspective view of the back frame and the seat back. [Figure 5]FIG. 2 is an exploded perspective view of a back cover, a back support plate, a padding material, and a seat heater. [Figure 6] FIG. 2 is an exploded perspective view of a headrest frame, a head cover, and a padding material. [Figure 7] FIG. 2 is a perspective view of a seat back (first back cover) as viewed from the rear. [Figure 8] FIG. 2 is a perspective view of the back frame and the lower left end portion of the seat back (first back cover) as seen from behind, showing the harness, connector, and connector attachment portion. [Figure 9] FIG. 2 is an exploded perspective view of the harness, the connector, and the connector mounting portion. [Figure 10] FIG. 2 is a front view of the seat back, showing the back support plate, the first back cover (connector mounting portion), and the harness. [Figure 11] 10 is a view showing a vehicle seat according to a second embodiment, illustrating a harness, a connector, and a connector attachment portion (first member, second member). FIG. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, an embodiment of the present invention will be described with reference to FIGS. This embodiment relates to a "vehicle seat" that allows for the appropriate positioning 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. The side of the vehicle seat where the occupant sits relative to the seat back (headrest) is the front side (seat front side), and the side of the seat cushion where the occupant sits 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 FIGS. 1, the vehicle seat S is a vehicle seat, for example, a front seat disposed at the front of the vehicle. Note that the vehicle seat S may be a middle seat or a rear seat.

[0020] As shown in Figures 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 Figures 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. Also, as shown in Figure 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 as needed and replaced. The combination of the seat cushion 1, the seat back 2 and the headrest 3 is also referred to as the "seat body."

[0021] As shown in Figures 1 and 2, the vehicle seat S 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 S also includes a control device 90 attached to the inside of 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. In addition, the vehicle seat S may be equipped with a height link device that connects the seat body to the vehicle floor (rail device 4) so ​​that it can be raised and lowered, a side support device that protrudes the side portion of the seat body toward the occupant, an airbag device, a vibration device, etc. The control device 90, the blower device 100, and the 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] As shown in Figures 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 forms the skeleton, 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 is formed by integrating a base cover 20, pad materials 1a and 1b, and a cover material 1c. The base cover 20 (also referred to as a cushion cover) is, for example, a cover made of a resin material (a resin cover), but may also be a metal cover.

[0023] 1, 2, 4, 5, and 7, the seat back 2 is a backrest portion that supports a seated occupant from behind, and includes a first back cover 40 and a second back cover 50 that form the framework, a first pad material 2a and a second pad material 2b that are placed on the front surface of the first back cover, and a cover material 2c that covers the first back cover 40 and the pad materials 2a and 2b. In addition, a back support plate 60 is attached between the first pad material 2a and the second pad material 2b. The seat back 2 is also called a "back module" and is mainly composed of a first back cover 40, padding materials 2a, 2b, and a cover material 2c which are integrated together, and a 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 covers made of, for example, a resin material (resin covers), but may also be covers made of metal.

[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 (a resin cover), but may also be a metal cover.

[0025] As shown in Figures 1 and 2, the rail device 4 is arranged between the cushion frame 10 and the vehicle floor in the vertical direction, and is equipped with left and right lower rails 4a that are fixed to the vehicle floor and extend in the fore-and-aft direction of the seat, left and right upper rails 4b that are supported slidably along the lower rails 4a, a locking member 4c that locks the upper rails 4b so that they cannot slide relative to the lower rails 4a, and a rail operating lever (not shown) that releases the locked state of the locking member 4c. A cushion frame 10 (side frame 11) is attached to the top surfaces of the left and right upper rails 4b.

[0026] As shown in Figures 1 and 2, the reclining device 5 includes a reclining body 5a that is driven when rotating the back frame 30, a back rotation shaft 5b, a spiral spring 5c ​​that urges the back frame 30 to rotate forward around the back rotation shaft 5b, and a reclining operation lever (not shown) that is operated to release the locked state of the back frame 30. The reclining body 5a has a known locking mechanism, and the state of the back frame 30 can be switched 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 supported in the seat width direction on the cushion frame 10 side and the back frame 30 side. One end of the spiral spring 5c ​​is anchored on the cushion frame 10 side, and the other end is anchored on the back frame 30 side.

[0027] <<Cushion frame, seat cushion (base cover)>> As shown in Figure 3, the cushion frame 10 is made of a rectangular frame-like body and includes side frames 11 arranged on the left and right sides and extending in the fore-and-aft direction of the seat, a plate-shaped pan frame 12 installed in the front portion of each side frame 11, a rear connecting frame 13 connecting the rear portions (rear end portions) of each side frame 11, a plurality of elastic springs 14 hooked onto the pan frame 12 and the rear connecting frame 13 and extending in a snake-like shape in the fore-and-aft 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 called a pressure plate. The support plate 15 is disposed in an area surrounded by the left and right side frames 11, the pan frame 12, and the rear connecting frame 13. The pan frame 12 has cover assembly parts 16 formed on its left and right side portions for assembly to the base cover 20 (assembly parts 24).

[0028] As shown in Figure 3, the base cover 20 is made of a resin frame-shaped body and is provided with 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 connecting the front portions of each cover side portion 21, and a cover rear portion 23 connecting the rear portions of each cover side portion 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, after the detachable portion 25 is attached to the rear connecting frame 13, the base cover 20 is assembled to the cushion frame 10 by assembling the assembly portion 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 cover front portion 22, and the cover rear portion . The second padding material 1b is placed on the upper surface of the base cover 20 and the first padding material 1a. The cover material 1c covers the base cover 20, the first pad material 1a, and the second pad material 1b from above. The cover terminal portion (outer edge portion) of the cover material 1c is hooked to a cover 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 . 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 (cover front portion 22).

[0031] <<Back frame, seat back (back cover)>> As shown in Figure 4, the back frame 30 is a rectangular frame-shaped body and includes back side frames 31 arranged on the left and right sides, an upper frame 32 connecting the upper ends of each back side frame 31, and a lower frame 33 connecting the lower ends of each back side frame 31. The back side frame 31, the upper frame 32, and the lower frame 33 each have a cover assembly portion 34 formed on their outer edge portion for assembly of the first back cover 40 and the second back cover 50. The back frame 30 is sandwiched between a first back cover 40 (front back cover) and a 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 is also called a "front back cover" and is made of a frame-shaped body made of resin, as shown in FIGS. 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. That is, an opening 44 is formed in the center portion of the first back cover 40. The cover side portion 41, the cover upper portion 42, and the cover lower portion 43 each have an assembly portion 45 formed on the rear surface thereof for assembly to the back frame 30 (cover assembly portion 34) and the second back cover 50 (assembly portion 55). A bracket 46 for attaching a head frame 70 is fixed to the front surface of the upper end of the cover upper 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 . Furthermore, a substantially trapezoidal recess 47 is formed on the front surface of the cover upper portion 42, slightly below the bracket 46. The 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 attachment portion 150 is formed on the rear surface of the lower portion of the first back cover 40 so as to protrude rearward of the seat.

[0034] The second back cover 50 is also called a rear back cover, and as shown in FIG. 4, is made of a frame-shaped body made of resin. 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. That is, an opening 54 is formed in the center of the second back cover 50. The cover side portion 51, the cover upper portion 52, and the cover lower portion 53 each have an assembly portion 55 formed on the front surface thereof for assembly to the back frame 30 (cover assembly portion 34) and the first back cover 40 (assembly portion 45). Furthermore, fitting holes 56 are formed at the lower ends of the left and right cover side portions 51 for fitting the reclining device 5 (reclining 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 called a pressure plate. The back support plate 60 is disposed in the center portion of the front surface of the first back cover 40 , and is disposed at a position lower than the blower device 100 . Plate attachment portions 61 for attachment to the front surface of the first back cover 40 are formed on the left and right side portions of the back support plate 60. The plate mounting portions 61 are mounting holes, and a plurality of them are formed at predetermined intervals in the vertical direction. The back support plate 60 is attached to the front surface of the back frame 30 by fastening bolts from the front while the plate attachment portions 61 and the attachment holes 35 of the back frame 30 are in communication with each other. As will be described in detail later, the back support plate 60 has a corner at the lower portion thereof cut out to form a recess 62 for exposing the connector mounting portion 150 .

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

[0038] With the above configuration, the seat back 2 (back module) which integrates the first back cover 40, the back support plate 60, the first pad material 2a, the seat heater 110, the second pad material 2b and the upholstery material 2c is removably assembled to the back frame 30. As shown in FIG. 4, the second back cover 50 is separately assembled to the back frame 30 from the rear so as to be detachable.

[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 center portion of the frame main body 71. Furthermore, a plurality of cover assembly portions 74 for assembly to a head cover 80 are formed in the frame main body 71 around the back assembly portion 73 . The cover assembly portion 74 is disposed so as to surround the back assembly portion 73 .

[0040] As shown in FIG. 6, the head cover 80 is a frame made of, for example, resin, and includes a cover body 81 and an outer edge flange 82 that protrudes forward from the outer edge of the cover body 81. An opening 83 for passing the back assembly portion 73 and the bracket 46 is formed in the center of the cover body 81. In addition, 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 portion 84 is disposed so as 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 (fastened with clips), thereby assembling the head frame 70 and the head cover 80 together. 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 bolts from the front), thereby assembling the head frame 70, the head cover 80, and the first back cover 40.

[0042] The padding 3 a 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 pad material 3a is formed larger than the head frame 70 and the head cover 80, and is disposed so as to protrude downward from the head frame 70 and the head cover 80. A part (lower part) of the pad material 3a is disposed so as to cover the blower device 100.

[0043] With the above 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 equipment (seat device)>> Next, the control device 90, the blower device 100, and the seat heater 110 will be described.

[0045] As shown in FIG. 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 central 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 includes a CPU (processor) as a data arithmetic and control processing device. The information is stored in the ROM and RAM as storage devices, the HDD, and the in-vehicle network. and a communication interface for transmitting and receiving information data.

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

[0048] As shown in FIG. 5, the seat heater 110 is a planar heating element that warms the seat back 2, and is arranged 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, the first harness 120, the second harness 130, the third harness 140, and the connector attachment portion 150 will be described in detail. The connector attachment portion 150 is also intended to simply route the harnesses 120, 130, 140 extending from the seat electrical device (blower device 100) attached to the seat body (seat back 2).

[0050] 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 (connecting 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). The first harness 120 may be a harness extending from another seat electrical device inside the seat back 2.

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

[0052] 5 and 8 to 10, the second harness 130 is a second linear member that extends from the connector 125 through the 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 connection portion with the seat heater 110). The second harness 130 may be a harness extending from another seat electrical device inside the seat back 2.

[0053] 8, the third harness 140 is a third linear member that extends downward from the second connector 145. More specifically, the third harness 140 passes through the lower end of the back frame 30 (first back cover 40) and extends toward the front of the seat. Then, the third harness 140 extends along the bottom surface of the cushion frame 10 (base cover 20) and is connected to the control device 90 that is provided on the bottom surface of the base cover 20 (cover front 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, the third harness 140 is bent 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 FIGS. 8 to 10, the connector attachment portion 150 is for attaching the connector 125, and is provided so as to protrude from the front surface to 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. A harness insertion hole 152 is formed on the side surface of the connector mounting portion 150 in the protruding direction. That is, the connector mounting hole 151 and the harness passing 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-rear direction, and is formed in the center of the protruding surface (rear surface) of the connector mounting portion 150. For example, an attachment clip 125a (attachment portion) provided on the side surface of the connector 125 is fitted into a connector attachment hole 151, whereby the connector 125 is detachably attached to the connector attachment 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 (in other words, the top surface) of the connector attachment portion 150. The opening of the harness passage hole 152 extends from the center of the side surface of the connector mounting portion 150 to the edge portion of the protruding surface. This makes it easier to pass the second harness 130 through the harness-passing hole 152. Furthermore, as shown in Fig. 8, the second harness 130 and the connector 125 can be disposed 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] In the above configuration, as shown in FIG. 9, 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 attachment portion 150 (front-rear direction of the seat). Therefore, it is possible to arrange the harnesses 120, 130 and the connector 125 while saving space. Specifically, when routing the second harness 130 through the harness-through hole 152, it is possible to save space in the protruding direction of the connector attachment portion 150 (the seat front-rear direction).

[0058] In the above configuration, as shown in FIG. 10, the back support plate 60 covers a part of the connector attachment portion 150 when the seat back 2 is viewed from the front. Therefore, the back support plate 60 can protect the connector mounting portion 150 (part of the connector mounting portion 150).

[0059] In the above configuration, as shown in FIG. 10, the back support plate 60 has a cutout formed in the portion (lower portion) facing the connector attachment portion 150 to form a relief portion 62 for exposing the attachment portion. More specifically, the edge portion of the back support plate 60 where the recess 62 is formed is curved (the edge portion is inclined). Therefore, when routing the harness (second harness 130), interference between the harness and the back support plate 60 can be suppressed.

[0060] In the vehicle seat S, the harness extending from the seat electrical device attached to the seat body and the connector at the extending end of the harness can be suitably arranged. In addition, harnesses and connectors can be placed using the space inside the seat body, and installed so as not to interfere with other components.

[0061] Second Embodiment Next, a vehicle seat S2 according to a second embodiment will be described with reference to FIG. It should be noted that the description of the same content as that of the vehicle seat S described above will be omitted. FIG. 11 is a diagram showing the harnesses 120, 130, 140 and the 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 to the inner surface of the side portion of the lower frame 33 by welding, and protrudes forward along the inner surface of the back side frame 31. A connector mounting hole 151 is formed on the side surface of the protruding portion of the first member 151A. The connector mounting hole 151 is a through hole that penetrates the seat widthwise. For example, an attachment clip 125a (attachment portion) provided on the side surface of the connector 125 is fitted into a connector attachment hole 151, whereby the connector 125 is detachably attached to the connector attachment portion 150.

[0064] The second member 152A is a convex portion having a protruding shape. A harness insertion hole 152 is formed on a side surface of the connector attachment portion 150 in the protruding direction (in other words, on the top surface). The harness passage hole 152 is a passage hole for passing the second harness 130 extending from the connector 125. The opening of the harness passage hole 152 extends from the side surface of the second member 151B to reach 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 suitably positioned and can be attached without interfering with other components.

[0066] <Method for manufacturing vehicle seats> Next, a method for manufacturing the vehicle seat S will be described with reference to FIGS. In addition, in the method for manufacturing the vehicle seat S, explanation of manufacturing steps other than those described below will be omitted.

[0067] First, the seat cushion 1 (cushion module), the seat back 2 (back module), and the 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 padding material 2a, a second padding material 2b, and a cover material 2c. A back support plate 60 is attached between the first padding material 2a and the second padding material 2b.

[0068] Then, seat electrical equipment (for example, a control device 90, a blower device 100, and a seat heater 110) is installed inside the seat cushion 1 and the seat back 2. Then, the seat cushion 1 is attached to the cushion frame 10. Furthermore, the seat back 2 is attached to the back frame 30. The seat cushion 1 and the seat back 2 are detachable from the seat frame F.

[0069] Then, harnesses 120, 130, 140 extending from the seat electrical device and 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 so as to protrude from the front surface to the rear surface of the seat back 2 (first back cover 40). Then, the second harness 130 extending from the connector 125 is passed through a harness passing hole formed on the side surface of the connector attachment portion 150. The second harness 130 extends from the connector 125 through the harness through-hole 152 to the front surface of the first back cover 40. Then, the second harness 130 is connected to a 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] <Other embodiments> In the above embodiment, as shown in Figs. 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 Figs. 3 and 4, the seat cushion 1 and the seat back 2 are configured from a cushion module and a back module, but this is not limited to this. For example, the seat cushion 1 may have a configuration including a padding material and a covering material. Alternatively, the seat cushion 1 may have a configuration including a cushion frame, a padding material, and a covering material. Similarly, the seat back 2 may have a configuration including a padding material and a covering material, or a configuration including 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), but 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 moving device may be attached to the attachment portion of the seat back 2. Alternatively, a connector (cable connection 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 so as to protrude from the front surface of the seat back 2 (first back cover 40) toward the rear surface, but this is not particularly limited. For example, the connector attachment portion 150 may be formed so as to protrude from the surface of the second back cover 50 or may be formed so as to protrude from the surface of the back frame 30. Alternatively, the connector attachment portion 150 may be formed so as to protrude from the surface of the seat cushion 1 (base cover 20) or the cushion frame .

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

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

[0077] In the above embodiment, the vehicle seat according to the present invention has been mainly described. However, the above embodiment is merely an example for facilitating understanding of the present invention, and does not limit the present invention. The present invention can be modified and improved without departing from the spirit thereof, and the present invention naturally includes equivalents thereof. [Explanation of symbols]

[0078] First Embodiment S Vehicle seat (vehicle seat) Front seat frame 1 Seat cushion (cushion module) 1a First pad material 1b Second pad material 1c Skin material 2 Seat back (back module) 2a First pad material 2aa Convex part 2b Second pad material 2c Skin material 3 Headrest 3a padding material 3b Skin material 4 Rail device 4a Lower rail 4b Upper rail 4c Locking member 5 Reclining device 5a Reclining unit 5b Back rotation axis 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 part 20 Base cover (cushion cover) 21 Cover side part 22 Front part of cover 23 Rear part of cover 24 Assembly section 25 Detachable part 30 Back Frame 31 Backside Frame 32 Upper frame 33 Lower frame 34 Cover assembly part 35 mounting holes 40 1st back cover (front back cover, back cover) 41 Cover side part 42 Upper part of cover 43 Lower part of cover 44 Opening 45 Assembly section 46 Bracket (head assembly bracket) 47 Recess 50 Second back cover (rear back cover) 51 Cover side part 52 Upper part of cover 53 Lower part of cover 54 Opening 55 Assembly section 56 Fitting hole (recliner fitting hole) 60 Back support plate (pressure plate) 61 Plate mounting part 62 Relief 70 Head Frame 71 Frame body 72 Outer flange 73 Back assembly part 74 Cover assembly part 80 Headcover 81 Cover body 82 Outer flange 83 Opening 84 Assembly section 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 mounting part 151 Connector mounting hole 152 Harness hole Second Embodiment S2 Vehicle Seat 150A connector mounting part 151A First member 152A Second member

Claims

1. A vehicle seat including a seat back, a seat cushion, and a seat frame that supports the seat back and the seat cushion, 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; an attachment portion provided so as to protrude from a surface of the seat back, the seat cushion, or the seat frame, and to which the connecting member is attached; A vehicle seat characterized in that a through hole is formed in a portion of the mounting portion other than the portion to which the connecting member is attached, for passing the first linear member or a second linear member extending from the connecting member that is different from the first linear member.

2. The seat device includes a seat electrical device provided in the seat back, The first linear member is a first harness extending from an upper portion of the seat back toward a lower portion thereof, The connecting member is a connector connected to an extending end portion of the first harness, the mounting portion is a connector mounting portion that protrudes from the front surface of the seat back toward the rear surface, 2. The vehicle seat according to claim 1, wherein the through-hole is a harness through-hole.

3. the connector is attached to the connector attachment portion on the rear surface of the lower portion of the seat back, 3. The vehicle seat according to claim 2, wherein 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. 4. The vehicle seat according to claim 2, wherein the harness-passing hole is a hole that penetrates in a direction that intersects with a protruding direction of the connector mounting portion.

5. the connector is attached to the protruding surface of the connector attachment portion, 4. The vehicle seat according to claim 2, wherein the harness-through hole is formed on a side surface of the connector mounting portion in a direction in which the connector mounting portion projects.

6. the connector is attached to a central portion of the protruding surface of the connector attachment portion, the harness-passing hole is formed on the side surface of the connector mounting portion, 6. The vehicle seat according to claim 5, wherein the opening of the harness-passing hole extends from the side surface to an edge portion of the protruding surface.

7. 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 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 attachment portion is formed on the back cover, 4. The vehicle seat according to claim 1, wherein the back support plate covers a part of the attachment portion when the seat back is viewed from the front.

8. a recess for exposing the mounting portion is formed by cutting out a lower portion of the back support plate facing the mounting portion; 8. The vehicle seat according to claim 7, wherein the edge portion of the back support plate where the relief portion is formed is curved or inclined.

9. the mounting portion is provided so as to protrude from a surface of the seat back, the seat cushion, or the seat frame, and includes a first member to which the connecting member is attached and a second member that forms the through-hole, 4. The vehicle seat according to claim 1, wherein the connecting member attached to the first member is disposed at a position facing the second member.

10. The seat frame includes a back frame, The back frame includes 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 includes a plate-shaped back cover attached to the back frame and supporting a seated occupant from behind, and a padding material attached to a front surface of the back cover, the first member is provided to protrude forward from a lower portion of the side frame or the lower frame, The vehicle seat according to claim 9, wherein the second member is provided so as to protrude rearward from a lower portion of the back cover.

11. At least one of the seat back and the seat cushion is detachably attached to the seat frame, 4. The vehicle seat according to claim 1, wherein the first linear member, the connecting member, and the mounting portion are attached to the seat back or the seat cushion.

Images