Vehicle seats

The vehicle seat design addresses the issue of harness positioning and protection by using a second trim to support and cover the harness, ensuring it remains secure and functional.

JP7897810B2Active Publication Date: 2026-07-30NHK SPRING CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
NHK SPRING CO LTD
Filing Date
2023-01-12
Publication Date
2026-07-30

AI Technical Summary

Technical Problem

Existing vehicle seats lack effective methods for positioning and protecting the harness, which is crucial for maintaining the integrity and functionality of the seat's components.

Method used

A vehicle seat design that includes a cushion pad, a first trim covering the cushion pad, a seat cushion, a seat back, and a second trim fixed to the first trim, which supports and covers a portion of the harness, with a harness pull-out hole positioned outward relative to the locking portion to prevent detachment and interference with other components.

Benefits of technology

The design effectively positions and protects the harness, preventing it from coming off and interfering with other seat features, allowing for better seat functionality and usability.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a vehicle seat which can position a harness and can also protect the harness.SOLUTION: A vehicle seat 10 includes a seat cushion 12 for supporting a hip part of a seating occupant from a seat lower side, a seat back 14 for supporting a back part of the seating occupant from a seat rear side, and a harness 18 arranged between the seat cushion 12 and the seat back 14. The seat cushion 12 has a cushion pad 24, and a first trim 26 mounted on the cushion pad 24. A second trim 28 is fixed to the first trim 26. A part 18A of the harness 18 is supported on the second trim 28 in a state of being covered with the second trim 28.SELECTED DRAWING: Figure 2
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Description

Technical Field

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

Background Art

[0002] Patent Document 1 below discloses a vehicle seat that enables easy attachment of a harness. The seat back of the vehicle seat described in this document has a configuration in which the seat back main body is covered with a bag-shaped seat back cover, and the lower end opening is closed by hog-ringing to a wire inserted through the front and rear edges of the cover terminal. Further, in this seat back, a bent recess for harness intervention is formed in the wire, and the harness is extended to the outside from the space formed by this bent recess. With this configuration, the attachment of the harness can be easily performed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, the configuration described in Patent Document 1 above is a useful configuration from the viewpoint of easily attaching the harness, but there is room for improvement from the viewpoints of positioning the harness and protecting the harness.

[0005] In consideration of the above facts, an object of the present invention is to obtain a vehicle seat that can position the harness and protect the harness.

Means for Solving the Problems

[0006] A vehicle seat according to the first embodiment includes a cushion pad and a first trim attached to the cushion pad, a seat cushion that supports the buttocks of a seated occupant from below the seat, a seat back that supports the back of a seated occupant from behind the seat, a harness routed between the seat cushion and the seat back, and a second trim fixed to the first trim that supports a portion of the harness while covering a portion of the harness.

[0007] According to the first embodiment of the vehicle seat, the harness is routed between the seat cushion and the seat back. The seat cushion also has a cushion pad and a first trim attached to the cushion pad. Furthermore, a second trim is fixed to the first trim. Here, a portion of the harness is covered by the second trim. This allows a portion of the harness to be protected by the second trim and also supported by the second trim. This allows the harness to be positioned relative to the seat cushion.

[0008] A vehicle seat of the second embodiment is a vehicle seat of the first embodiment in which a part of the second trim is a second trim-side fixing part fixed to the first trim, and the other part of the second trim is a second trim-side locking part that is detachably locked to the first trim and is positioned inward in the seat width direction from the second trim-side fixing part when locked to the first trim, and a harness pull-out hole is formed in the seat back from which the harness is pulled out, and the harness pull-out hole is positioned outward in the seat width direction from the second trim-side locking part when locked to the first trim.

[0009] In the second embodiment of the vehicle seat, a portion of the harness is positioned between the first trim and the second trim, and the second trim-side locking portion of the second trim is locked to the first trim, thereby allowing a portion of the harness to be supported by the second trim. Here, a harness pull-out hole is formed in the seat back from which the harness is pulled out, and this harness pull-out hole is positioned outward in the seat width direction relative to the second trim-side locking portion that is locked to the first trim. Therefore, even if the portion of the harness pulled out from the harness pull-out hole is pulled outward in the seat width direction, the portion of the harness will not move toward the second trim-side locking portion of the second trim. This prevents a portion of the harness from coming off the second trim when the portion of the harness pulled out from the harness pull-out hole is pulled outward in the seat width direction.

[0010] A third embodiment of a vehicle seat is a vehicle seat of the second embodiment, further comprising: a central extending portion extending in the seat width direction and the seat front-rear direction at the center of the seat width direction; and inclined extending portions extending outward in the seat width direction from both ends of the central extending portion in the seat width direction and inclined upward towards the seat as they extend outward in the seat width direction; and a cushion pan supporting the cushion pad from below the seat, wherein a part of the first trim and the second trim are arranged along the seat-down surface of the cushion pan, and the second trim-side locking portion is arranged along the inclined extending portion with the second trim-side locking portion locked to the first trim.

[0011] In the third embodiment of the vehicle seat, a portion of the first trim and the second trim are arranged along the lower surface of the cushion pan. Here, when the second trim-side locking portion of the second trim is locked to the first trim, the second trim-side locking portion is arranged along the inclined extension of the cushion pan. As a result, in the third embodiment of the vehicle seat, compared to a configuration in which the second trim-side locking portion of the second trim is arranged along the central extension of the cushion pan when locked to the first trim, it is possible to suppress the second trim-side locking portion of the second trim from being touched by the vehicle occupant.

[0012] A fourth embodiment of a vehicle seat further comprises a storage compartment located below the cushion pan, in the third embodiment of a vehicle seat, wherein the second trim is offset from the storage compartment in the seat-front-rear direction.

[0013] According to the fourth embodiment of the vehicle seat, the second trim is positioned offset from the storage compartment in the front-rear direction of the seat. This prevents the second trim from interfering with the use of the storage compartment.

[0014] A fifth embodiment of a vehicle seat is a vehicle seat of the first embodiment in which the second trim comprises a second trim-side fixing portion fixed to the first trim by sewing, a covering portion extending to one side with respect to the second trim-side fixing portion and having a second trim-side locking portion on the opposite side of the second trim-side fixing portion that is detachably locked to the first trim, and a seam allowance portion extending to the other side with respect to the second trim-side fixing portion, wherein a part of the harness is sandwiched between the seam allowance portion and the first trim and covered by the covering portion when the second trim-side locking portion is locked to the first trim.

[0015] In the fifth embodiment of the vehicle seat, when the second trim-side locking portion of the second trim is locked to the first trim, a portion of the harness is sandwiched between the seam allowance of the second trim and the first trim, and is also covered by the covering portion of the second trim. As a result, in the fifth embodiment of the vehicle seat, compared to a configuration in which a portion of the harness is not sandwiched between the seam allowance of the second trim and the first trim, it is possible to suppress the detachment of a portion of the harness from the second trim. [Effects of the Invention]

[0016] The vehicle seat according to the present invention has the excellent effect of being able to position the harness and protect the harness. [Brief explanation of the drawing]

[0017] [Figure 1] This is a schematic side view showing the vehicle seat of this embodiment. [Figure 2] This is a cross-sectional view showing the cross-section of a seat cushion cut along the line 2-2 shown in Figure 1. [Figure 3] This is a bottom view of the seat cushion and seat back, seen from below, showing the state before a portion of the harness is supported by the second trim. [Figure 4] This is a bottom view of the seat cushion and seat back, seen from below, showing a portion of the harness supported by the second trim. [Figure 5] This is a cross-sectional view corresponding to Figure 2, showing an example where the seam allowance of the second trim is set to be long. [Modes for carrying out the invention]

[0018] Using FIGS. 1 to 4, the vehicle seat 10 according to an embodiment of the present invention will be described. The arrows FR, UP, RH, and LH shown in the drawings respectively indicate the front side, upper side, right side, and left side of the seat as viewed from an occupant sitting on the vehicle seat 10. Hereinafter, when simply using the directions of front and rear, up and down, and left and right for description, unless otherwise specified, they indicate the front and rear in the seat front-rear direction, the up and down in the seat up-down direction, and the left and right in the seat left-right direction. Also, the seat left-right direction coincides with the seat width direction.

[0019] As shown in FIG. 1, the vehicle seat 10 of the present embodiment includes a seat cushion 12 that supports the buttocks of the seated occupant from below, and a seat back 14 that supports the back of the seated occupant from behind. The vehicle seat 10 also includes a lifting device 16 that supports the seat cushion 12 so as to be movable up and down in the vertical direction, and a harness 18 that is routed between the seat cushion 12 and the seat back 14.

[0020] As shown in FIG. 2, the seat cushion 12 includes a pair of left and right side frame portions (not shown) that are arranged at intervals in the seat width direction, a cushion pan 20 that is spanned across the pair of left and right side frame portions, and a storage portion 22 that is disposed below the front end portion of the cushion pan 20. The seat cushion 12 also includes a cushion pad 24 that is supported from below by the cushion pan 20, a first trim 26 that covers the cushion pad 24 and the like, and a second trim 28 that is fixed to the first trim 26.

[0021] The cushion pan 20 is formed using, for example, a metal plate. The cushion pan 20 includes a central extending portion 30 that extends in the seat width direction and the front-rear direction at the central portion in the seat width direction. The cushion pan 20 also includes a pair of left and right inclined extending portions 32 that extend outward in the seat width direction (opposite to the center in the seat width direction) from both ends in the seat width direction of the central extending portion 30. The pair of left and right inclined extending portions 32 are inclined upward as they extend outward in the seat width direction.

[0022] The storage part 22 is formed in a box shape with a part thereof being open as an example. By pulling out the storage part 22 toward the front side, it is possible to store luggage in the storage part 22.

[0023] The cushion pad 24 is formed in a block shape using urethane foam or the like as an example. The lower part of this cushion pad 24 is supported by the cushion pan 20 in a state of being fitted into the cushion pan 20. Also, the surface of the cushion pad 24 on the side of the seated occupant is covered by a part of the first trim 26.

[0024] The first trim 26 includes a first covering part 34 that covers the surface of the cushion pad 24 on the side of the seated occupant, and a second covering part 36 that is connected to the first covering part 34 and covers the rear part of the cushion pad 24 and the lower surface of the cushion pan 20. Note that the first covering part 34 is formed using a cloth or synthetic leather or the like with good texture as an example. Also, the second covering part 36 is formed using a cloth-like member to which a hook-and-loop fastener 38 described later can be locked. As shown in FIGS. 2 and 3, the second covering part 36 includes a central covering part 36A arranged along the lower surface of the central extending part 30 of the cushion pan 20, and a pair of left and right inclined covering parts 36B arranged along the lower surfaces of the pair of left and right inclined extending parts 32 of the cushion pan 20.

[0025] The second trim 28 is formed using the same material as the first trim 26, for example, and is fixed to the first trim 26 at a position offset to the rear of the seat relative to the aforementioned storage section 22 (see Figure 1). When the second trim 28 is extended in the front-rear direction and the seat width direction, its shape when viewed from the thickness direction (downward side) is rectangular, with the front-rear direction as the longitudinal direction and the seat width direction as the short direction. One end of the second trim 28 in the short direction is a second trim-side fixing part 28A, which is fixed by sewing to the outer end of the left inclined covering section 36B in the seat width direction. The other end of the second trim 28 in the short direction is a second trim-side locking part 28B. A hook-and-loop fastener 38 is fixed to the second trim-side locking part 28B by sewing. As a result, the second trim-side locking part 28B is detachably locked to the left inclined covering section 36B via the hook-and-loop fastener 38. The portion of the second trim 28 between the second trim-side fixing portion 28A and the second trim-side locking portion 28B will be referred to as the covering portion 28C. The second trim-side locking portion 28B is locked to the portion of the left inclined covering portion 36B on the side of the central covering portion 36A, so that the second trim 28 is positioned together with the left inclined covering portion 36B along the left inclined extension portion 32 of the cushion pan 20. This makes it possible to support a portion 18A of the harness 18, which will be described later, by the second trim 28 while it is aligned with the left inclined extension portion 32 of the cushion pan 20.

[0026] The harness 18 is used, for example, to supply power to a heater, blower, and various actuators located within the seat back 14. This harness 18 is routed downward from a harness outlet hole 40 formed at the lower left end of the seat back 14. As shown in Figures 2 and 4, a portion of the harness 18 is supported by the second trim 28 below the cushion pan 20.

[0027] (Operation and effects of this embodiment) Next, the operation and effects of this embodiment will be described.

[0028] In the vehicle seat 10 of this embodiment described above, as shown in Figure 3, a portion 18A of the harness 18 is positioned between the first trim 26 (left-side inclined covering portion 36B) and the second trim 28, and as shown in Figures 2 and 4, the second trim-side locking portion 28B of the second trim 28 is locked to the left-side inclined covering portion 36B. This allows the portion 18A of the harness 18 to be supported by the second trim 28, and the harness 18 to be positioned relative to the seat cushion 12. Furthermore, when the portion 18A of the harness 18 is supported by the second trim 28, the portion 18A of the harness 18 is covered from below by the covering portion 28C of the second trim 28. This protects the portion 18A of the harness 18 from the covering portion 28C of the second trim 28.

[0029] Furthermore, in this embodiment, a portion 18A of the harness 18 is supported by the second trim 28 while aligned with the left-side inclined extension 32 of the cushion pan 20. As a result, in this embodiment, the seat cushion 12 can be positioned closer to the vehicle floor compared to a configuration in which a portion 18A of the harness 18 is supported by the second trim 28 while aligned with the central extension 30 of the cushion pan 20. This allows, for example, the lower limit position of the seat cushion 12 when the lifting device 16 is operated to be set lower.

[0030] Here, the seat back 14 has a harness pull-out hole 40 from which the harness 18 is pulled out, and this harness pull-out hole 40 is positioned outward in the seat width direction relative to the second trim side locking portion 28B which is locked to the first trim 26. Therefore, even if the portion 18B of the harness 18 that is pulled out from the harness pull-out hole 40 is pulled outward in the seat width direction, a part 18A of the harness 18 does not move toward the second trim side locking portion 28B of the second trim 28. This prevents a part 18A of the harness 18 from coming off the second trim 28 when the portion 18B of the harness 18 that is pulled out from the harness pull-out hole 40 is pulled outward in the seat width direction.

[0031] Furthermore, when the second trim-side locking portion 28B of the second trim 28 is locked to the first trim 26, the second trim-side locking portion 28B is positioned along the left-side inclined extension portion 32 of the cushion pan 20. As a result, in this embodiment, compared to a configuration in which the second trim-side locking portion 28B of the second trim 28 is positioned along the central extension portion 30 of the cushion pan 20 when locked to the first trim 26, it is possible to suppress the second trim-side locking portion 28B of the second trim 28 from being touched by the vehicle occupants.

[0032] Furthermore, in this embodiment, the second trim 28 is positioned offset to the rear of the seat relative to the storage compartment 22. This prevents the second trim 28 from interfering with the use of the storage compartment 22.

[0033] (Example where the seam allowance 28D of the second trim 28 is set to be long) Next, an example in which the seam allowance 28D of the second trim 28 is set to be long will be described using Figure 5. Note that the vehicle seat 42 shown in Figure 5 is constructed in the same way as the vehicle seat 10 described above, except for the points that will be described later. For this reason, in the vehicle seat 42 shown in Figure 5, the same reference numerals as those used for the vehicle seat 10 are used for the components and parts that correspond to the vehicle seat 10, and their descriptions may be omitted.

[0034] As shown in Figure 5, the second trim 28 of the vehicle seat 42 includes a second trim-side fixing portion 28A that is fixed to the first trim 26 by sewing, and a covering portion 28C that extends to one side relative to the second trim-side fixing portion 28A, with the end opposite to the second trim-side fixing portion 28A being a second trim-side locking portion 28B. The second trim 28 of the vehicle seat 42 also includes a seam allowance portion 28D that extends to the other side relative to the second trim-side fixing portion 28A. With the second trim-side locking portion 28B locked to the first trim 26, a part 18A of the harness 18 is sandwiched between the seam allowance portion 28D and the first trim 26 (the left-side inclined covering portion 36B) and is covered by the covering portion 28C. In this way, the vehicle seat 42 shown in Figure 5 can further suppress the detachment of a portion 18A of the harness 18 from the second trim 28 compared to the vehicle seat 10 described above.

[0035] Although this embodiment describes an example in which a storage compartment 22 is provided, the present invention is not limited thereto. The configuration of the present invention can also be applied to vehicle seats in which a storage compartment 22 is not provided.

[0036] Furthermore, in this embodiment, an example was described in which the second trim-side locking portion 28B of the second trim 28 is locked to the first trim 26 and the second trim-side locking portion 28B is positioned along the left-side inclined extension portion 32 of the cushion pan 20, but the present invention is not limited thereto. The position of the second trim-side locking portion 28B relative to the cushion pan 20 can be set appropriately considering the shape of the vehicle body floor, etc.

[0037] Furthermore, although this embodiment describes an example in which the harness pull-out hole 40 is positioned outward in the seat width direction relative to the second trim-side locking portion 28B when it is locked to the first trim 26, the present invention is not limited to this. The positional relationship between the harness pull-out hole 40 and the second trim-side locking portion 28B when it is locked to the first trim 26 can be appropriately set considering the routing path of the harness 18, etc.

[0038] Furthermore, although this embodiment describes a vehicle seat 10 having a cushion pan 20, the present invention is not limited thereto. The configuration of the present invention can also be applied to vehicle seats having cushion wires or the like as alternative members to the cushion pan 20.

[0039] Although one embodiment of the present invention has been described above, it goes without saying that the present invention is not limited to the above, and can be implemented in various other ways without departing from the spirit of the invention. [Explanation of Symbols]

[0040] 10 Vehicle seats 12 seat cushions 14 Seatback 18 Harness 20 Cushion Pans 22 Storage compartment 24 cushion pads 26 First trim 28 Second trim 28A Second trim side fixing part 28B Second trim side locking part 28C Covering 28D Seam allowance 30 Central extension 32 Inclined extension 40 harness outlet holes 42 Vehicle seats

Claims

1. A seat cushion comprising a cushion pad and a first trim attached to the cushion pad, which supports the buttocks of a seated occupant from below the seat, A seatback that supports the back of the seated occupant from the rear of the seat, A harness routed between the seat cushion and the seat back, A second trim is fixed to the first trim and supports a portion of the harness while covering a portion of the harness, Equipped with, The aforementioned seat cushion has an inclined extension that slopes upward towards the seat as it extends outward in the width direction of the seat, A portion of the first trim and the second trim extend along the front-rear direction of the sheet in the inclined extension portion. Vehicle seats.

2. A portion of the second trim is a second trim-side fixing portion that is fixed to the first trim. Another portion of the second trim is a second trim-side locking portion that is detachably locked to the first trim and is positioned inward in the seat width direction from the second trim-side fixing portion while locked to the first trim. The seat back has a harness pull-out hole formed therein, The vehicle seat according to claim 1, wherein the harness pull-out hole is positioned outward in the seat width direction relative to the second trim side locking portion when locked to the first trim.

3. The cushion pad has a central extending portion that extends in the seat width direction and the seat front-rear direction at the center of the seat width direction, and inclined extending portions that extend outward in the seat width direction from both ends of the central extending portion in the seat width direction and are inclined upward towards the seat as they are directed outward in the seat width direction, and further comprises a cushion pan that supports the cushion pad from below the seat, A portion of the first trim and the second trim are arranged along the lower surface of the cushion pan. The vehicle seat according to claim 2, wherein the second trim-side locking portion is locked to the first trim, and the second trim-side locking portion is arranged along the inclined extension portion.

4. The cushion pan is further equipped with a storage compartment located below it, The vehicle seat according to claim 3, wherein the second trim is positioned offset from the storage section in the seat front-rear direction.

5. The second trim comprises a second trim-side fixing portion that is fixed to the first trim by sewing, a covering portion that extends to one side relative to the second trim-side fixing portion and whose opposite side is a second trim-side locking portion that is detachably locked to the first trim, and a seam allowance portion that extends to the other side relative to the second trim-side fixing portion. The vehicle seat according to claim 1, wherein the second trim-side locking portion is locked to the first trim, and a portion of the harness is sandwiched between the seam allowance and the first trim and covered by the covering portion.

Citation Information

Patent Citations

  • JP1989174258U