Vehicle seats

The vehicle seat design addresses the issue of harness path regulation by using a bracket and cover to secure the harness, preventing damage and simplifying the cover's configuration.

JP2026068614APending Publication Date: 2026-04-22NHK SPRING CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
NHK SPRING CO LTD
Filing Date
2024-10-10
Publication Date
2026-04-22

AI Technical Summary

Technical Problem

Existing vehicle seat designs fail to effectively regulate the wiring path of harnesses, leading to potential damage from displacement during seat sliding.

Method used

A vehicle seat design that includes a bracket supporting electrical components, a cover with a restricting portion, and a harness secured to the cover, allowing the routing path of the harness to be restricted to a predetermined path.

Benefits of technology

The design effectively restricts the harness routing path, preventing damage and simplifying the cover's configuration.

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Abstract

To obtain a vehicle seat that can restrict the routing of a harness to a predetermined routing path. [Solution] The vehicle seat 10 comprises a seat body 18, a seat slide rail 20, a bracket 22, a harness 26, and a cover 28. The bracket 22 is fixed to the upper rail 30 of the seat slide rail 20 and supports the electrical components 24. The harness 26 is routed on the lower side of the seat body 18 and connected to the electrical components 24. The cover 28 covers the bracket 22 by being attached to the bracket 22 and has a restricting part 28H that restricts the routing path of the harness 26 to a predetermined routing path by locking a part 26A of the harness 26.
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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 wiring structure of a wire harness on the side portion of a vehicle seat. In the vehicle seat described in this document, at the side portion of the vehicle seat, the upper part of the wire harness is fixed to the seat body, and the lower part of the wire harness is fixed to the lower rail of the seat slide rail.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in a configuration where the harness is displaced as the seat slides as in the configuration described in Patent Document 1 above, it is conceivable that the displaced harness contacts other members and is damaged. Therefore, it is desirable to be able to regulate the wiring path of the harness to a defined wiring path.

[0005] In consideration of the above facts, an object of the present invention is to obtain a vehicle seat capable of regulating the wiring path of a harness to a defined wiring path.

Means for Solving the Problems

[0006] A vehicle seat according to the first embodiment comprises: a seat body that supports the body of a seated occupant; a seat slide rail having an upper rail provided below the seat body to which the seat body is fixed, and a lower rail that supports the upper rail so as to be slidable in the front-rear direction of the seat; a bracket fixed to the upper rail and supporting electrical components; a harness routed below the seat body and connected to the electrical components; and a cover that is attached to the bracket to cover the bracket and has a restricting portion that locks a part of the harness to restrict the routing path of the harness to a predetermined routing path.

[0007] In the first embodiment of the vehicle seat, the seat body is displaced in the front-rear direction by the upper rail of the seat slide rail sliding relative to the lower rail of the seat slide rail. A bracket that supports electrical components is fixed to the upper rail, and a cover is attached to this bracket. Furthermore, the harness connected to the electrical components is secured to a restricting part provided on the cover. This allows the routing path of the harness to be restricted to a predetermined routing path.

[0008] In the second embodiment of the vehicle seat, a portion of the harness is sandwiched between the restricting portion and the bracket, as in the vehicle seat of the first embodiment.

[0009] In the second embodiment of the vehicle seat, a portion of the harness is sandwiched between the restricting portion of the cover and the bracket. In this configuration, by having the bracket function as the part that restricts the routing path of the harness, it is possible to suppress the complexity of the configuration of the restricting portion of the cover. [Effects of the Invention]

[0010] The vehicle seat according to the present invention has the excellent effect of being able to restrict the routing path of the harness to a predetermined routing path. [Brief explanation of the drawing]

[0011] [Figure 1] This is a perspective view of a vehicle seat, seen from below. [Figure 2] This is an enlarged perspective view of the area of ​​the seat slide rail where electrical components are installed, seen from below. [Figure 3] This is an enlarged perspective view corresponding to Figure 2, showing the figure with the cover removed. [Figure 4] This is an enlarged perspective view from above of the area of ​​the seat slide rail where electrical components are installed. [Figure 5] This is an enlarged perspective view corresponding to Figure 4, showing the device with the cover removed and the wiring omitted. [Figure 6] This is a magnified perspective view showing the cover. [Figure 7] This is an enlarged perspective view showing the cover, and is shown from the opposite direction to Figure 6. [Modes for carrying out the invention]

[0012] A vehicle seat 10 according to the first embodiment of the present invention will be described with reference to Figures 1 to 7. In the figures, arrow FR indicates the front side of the seat, arrow UP indicates the upper side of the seat, arrow RH indicates the right side in the seat width direction, and arrow LH indicates the left side in the seat width direction. Furthermore, in the following description, unless otherwise specified, when the front / rear, up / down, and left / right directions are indicated, they refer to the front / rear direction of the seat, the up / down direction of the seat, and the left / right direction in the seat width direction.

[0013] As shown in Figure 1, the vehicle seat 10 of this embodiment includes a seat cushion 12 that supports the seated occupant's buttocks from below, a seat back 14 that supports the seated occupant's back from behind, and a headrest 16 that supports the seated occupant's head from behind. The seat cushion 12, seat back 14, and headrest 16 constitute the main part of the seat body 18 that supports the seated occupant's body. Furthermore, as shown in Figures 1 to 3, the vehicle seat 10 includes a seat slide rail 20 that supports the seat body 18 below the seat body 18 so that it can slide in the front-rear direction. The vehicle seat 10 also includes a bracket 22 fixed to the seat slide rail 20, an electrical component 24 supported by the bracket 22, a harness 26 connected to the electrical component 24, and a cover 28 attached to the bracket 22.

[0014] As shown in Figures 1 and 4, the seat slide rail 20 comprises a pair of left and right upper rails 30 to which the seat body 18 is fixed, and a pair of left and right lower rails 32 that are fixed to the floor of the vehicle and support the pair of left and right upper rails 30 so that they can slide in the front-rear direction.

[0015] As shown in Figure 5, the bracket 22 is formed, for example, by press-forming a steel plate. This bracket 22 is formed in a rectangular shape with the vertical direction as the thickness direction, and is equipped with an upper rail fixing portion 22A that is fixed to the upper surface of the middle portion of the left upper rail 30 in the front-rear direction via a crimping member 34. The bracket 22 is also equipped with an inclined portion 22B that extends downward from the inner (right) end in the seat width direction of the upper rail fixing portion 22A toward the inward side in the seat width direction. Furthermore, the bracket 22 is equipped with an electrical component fixing portion 22C that extends toward the inward side in the seat width direction from the inner end in the seat width direction of the inclined portion 22B. The electrical component fixing portion 22C is formed in a rectangular shape with the vertical direction as the thickness direction. The dimensions of the electrical component fixing portion 22C in the front-rear direction are set to be larger than the dimensions of the upper rail fixing portion 22A and the inclined portion 22B in the front-rear direction. Furthermore, the electrical component fixing portion 22C has two electrical component locking holes 22D that penetrate the electrical component fixing portion 22C in the vertical direction. The two electrical component locking holes 22D are spaced apart in the front-rear direction. The bracket 22 also includes a first cover locking portion 22E that extends downward from the inner end of the electrical component fixing portion 22C in the seat width direction. The first cover locking portion 22E is formed in a rectangular shape with the left-right direction as the thickness direction. The first cover locking portion 22E has two cover locking holes 22F that penetrate the first cover locking portion 22E in the left-right direction. The two cover locking holes 22F are spaced apart in the front-rear direction. The bracket 22 also includes a second cover locking portion 22H that extends rearward from the rear of the first cover locking portion 22E via a stepped portion 22G. The second cover locking portion 22H is positioned offset to the outside (left side) in the sheet width direction relative to the first cover locking portion 22E. Furthermore, the shape of the rear end of the second cover locking portion 22H, when viewed from the sheet width direction, is formed to gradually narrow towards the rear.

[0016] As shown in Figures 3 and 5, the electrical component 24 comprises an electrical component body portion 24A formed in the shape of a rectangular parallelepiped with the front-to-back direction as its longitudinal direction, and a connector portion 24B protruding rearward from the rear end of the electrical component body portion 24A. The electrical component 24 also has two bracket locking portions 24C protruding upward from the upper surface of the electrical component body portion 24A. The two bracket locking portions 24C are spaced apart in the front-to-back direction. The two bracket locking portions 24C are inserted from below into two electrical component locking holes 22D formed in the electrical component fixing portion 22C of the bracket 22, and the two bracket locking portions 24C are locked to the periphery of the two electrical component locking holes 22D, thereby fixing the electrical component 24 to the electrical component fixing portion 22C of the bracket 22. Furthermore, when the electrical component 24 is fixed to the electrical component fixing portion 22C of the bracket 22, the main body portion 24A of the electrical component and the first cover locking portion 22E of the bracket 22 are arranged facing each other in the left-right direction, and the connector portion 24B and the second cover locking portion 22H of the bracket 22 are also arranged facing each other in the left-right direction.

[0017] As shown in Figure 3, the harness 26 is routed from the center in the width direction of the seat toward the electrical component 24. A connector 36 is attached to the end of the harness 26 that faces the electrical component 24. This connector 36 is then connected to the connector portion 24B of the electrical component 24, thereby electrically connecting the harness 26 and the electrical component 24.

[0018] As shown in Figures 6 and 7, the cover 28 is formed using a resin material as an example. The cover 28 comprises a first cover portion 28A formed in the shape of a rectangular plate with the left-right direction as the thickness direction, and a second cover portion 28B extending outward (to the left) in the sheet width direction from the rear end of the first cover portion 28A toward the rear. The cover 28 also has a first locking portion 28C that protrudes outward in the sheet width direction from the front end of the first cover portion 28A. Furthermore, the cover 28 has a second locking portion 28D that protrudes outward in the sheet width direction from the front part of the first cover portion 28A and from behind the first locking portion 28C. A U-shaped hole 28E is formed around the second locking portion 28D in the first cover portion 28A, surrounding the upper, front, and lower parts of the second locking portion 28D. This U-shaped hole 28E penetrates the first cover portion 28A in the left-right direction. Furthermore, the shape of the U-shaped hole 28E when viewed from the sheet width direction is a U-shape with the rear side open. Because the U-shaped hole 28E is formed in the first cover portion 28A, the portion of the first cover portion 28A corresponding to the second locking portion 28D is displaceable in the sheet width direction. The cover 28 also includes a third locking portion 28F that protrudes outward in the sheet width direction from the rear end of the first cover portion 28A. This third locking portion 28F is formed in a bag shape with the front side open. In addition, a pair of ribs 28G that protrude outward in the sheet width direction are formed in the range from the rear end of the first cover portion 28A to the second cover portion 28B. The front portion of this pair of ribs 28G is located inside the third locking portion 28F. The cover 28 also includes a restricting portion 28H that extends outward in the sheet width direction from the front and top of the first cover portion 28A. A regulating projection 28J is formed at the center of the front-to-rear direction of the outer end of the regulating portion 28H in the sheet width direction, projecting downward. The cover 28 also includes a lower flange portion 28K extending outward in the sheet width direction from the lower ends of the first cover portion 28A and the second cover portion 28B. The cover 28 also includes a rear flange portion 28L extending outward in the sheet width direction from the rear end of the second cover portion 28B. Multiple ribs 28M are stretched between the first cover portion 28A and the lower flange portion 28K.

[0019] As shown in FIGS. 2 to 7, with the second cover locking portion 22H of the bracket 22 inserted into the third locking portion 28F of the cover 28, the first locking portion 28C and the second locking portion 28D of the cover 28 are inserted into two cover locking holes 22F formed in the first cover locking portion 22E of the bracket 22 from the inner side in the seat width direction, respectively. Then, by locking the first locking portion 28C and the second locking portion 28D of the cover 28 to the peripheral portions of the two cover locking holes 22F, the cover 28 is attached to the bracket 22.

[0020] Further, when attaching the cover 28 to the bracket 22, a part 26A of the harness 26 is disposed between the regulating portion 28H of the cover 28 and the bracket 22. As a result, a part 26A of the harness 26 is sandwiched (locked) between the regulating portion 28H, the regulating protrusion 28J of the cover 28 and the bracket 22. As a result, in the vehicle seat 10 of the present embodiment, the routing path of the harness can be regulated to a defined routing path.

[0021] Also, in the present embodiment, by providing the bracket 22 with the function as a portion for regulating the routing path of the harness 26, it is possible to suppress complication of the configuration of the regulating portion 28H of the cover 28.

[0022] In addition, in the present embodiment, an example in which the bracket 22 has the function as a portion for regulating the routing path of the harness 26 has been described, but the present invention is not limited thereto. For example, the routing path of the harness 26 can also be regulated only by the regulating portion 28H of the cover 28.

[0023] As described above, one embodiment of the present invention has been described. However, the present invention is not limited to the above, and it is needless to say that various modifications can be made and implemented within the scope not departing from the gist thereof.

Explanation of Reference Numerals

[0024] 10 Vehicle seat 18 Seat Body 20 Seat slide rails 22 brackets 24 Electrical components 26 Harness Part of the 26A harness 28 Cover 28H Regulation Department 30 Upper Rail 32 Lower Rail

Claims

1. The seat body that supports the body of the seated occupant, A seat slide rail comprising an upper rail provided below the seat body to which the seat body is fixed, and a lower rail that supports the upper rail so as to be slidable in the seat's front-rear direction, A bracket fixed to the upper rail and supporting electrical components, A harness is routed below the seat body and connected to the electrical components, A cover that is attached to the bracket, thereby covering the bracket, and has a restricting portion that locks a part of the harness, thereby restricting the routing path of the harness to a predetermined routing path, A vehicle seat equipped with [a specific feature / feature].

2. The vehicle seat according to claim 1, wherein a portion of the harness is sandwiched between the restricting portion and the bracket.

Citation Information

Patent Citations

  • Wire harness arrangement structure of vehicle seat

    JP2020203541A