Fixing structure for headrest sleeve

Abstract

The design aims to simplify the assembly process of the headrest sleeve onto the bracket fixed to the headrest frame, allowing for efficient installation. [Solution] The headrest sleeve 40, which is assembled to a bracket 13 fixed to a headrest frame 10 that supports the headrest body, consists of a cylindrical sleeve body 40a and a flange portion 40b that extends in a flange shape from one end of the sleeve body 40a and is positioned in contact with the bracket 13. The flange portion 40b is provided with an insertion hole 40c into which a protruding portion 62a of a wire harness fixing clip 62 is inserted. The sleeve body 40a is fixed to the bracket 13 by fitting the wire harness fixing clip 62 to the bracket 13 via the flange portion 40b.

Description

Technical Field

[0001] The present invention relates to a headrest, and particularly to a fixing structure of a sleeve for a headrest through which a wire harness or the like is inserted.

Prior Art Documents

Patent Documents

[0002]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0003] In the above prior art, the sleeve for the headrest is assembled to a bracket fixed to a stay that supports the main body of the headrest. This sleeve for the headrest includes a sleeve body formed in a cylindrical shape. From one end of the sleeve body, a flange portion extends in a conical shape. This flange portion is disposed in contact with the above bracket. From this flange portion, a bracket fitting portion extends toward the side opposite to the sleeve body. This bracket fitting portion is fitted into a fitting hole formed in the above bracket. A locking claw is provided on this bracket fitting portion. The locking claw elastically deform during the above fitting and engages with the bracket from the side opposite to the flange portion by elastic recovery. Thereby, the sleeve for this headrest is assembled to the above bracket. A wire harness is inserted into the sleeve assembled to the above bracket. This wire harness is a wiring group for supplying power or the like to the above audio unit, and is routed from inside the headrest into a seat back not shown in the figure. A connector is attached to the upper end portion of the wire harness. The connector attached to the upper end portion of the wire harness is connected to a connector not shown provided on the audio unit. Additionally, a connector is attached to the lower end of the wire harness, and this connector is equipped with a clip for securing the wire harness.

[0004] As described above, the headrest sleeve described in Patent Document 1 has a structure that locks into a bracket fixed to the headrest stay with a claw. In addition, a clip is required separately to secure the connector provided at the end of the wire harness. As a result, the headrest sleeve structure becomes complex, raising concerns that it may lead to reduced durability and increased costs. Furthermore, in addition to the work required to secure the headrest sleeve, the work required to secure the end of the wire harness is also necessary.

[0005] In consideration of the above facts, the present invention aims to simplify the headrest sleeve structure that is assembled to a bracket fixed to the headrest frame, and to enable the fixing of the headrest sleeve and the fixing of the connector provided at the end of the wire harness to be performed in a single operation. [Means for solving the problem]

[0006] The headrest sleeve of the present invention, which is assembled to a bracket fixed to the leg portion supporting the headrest body, comprises a cylindrical sleeve body and a flange portion extending in a flange shape from one end of the sleeve body and positioned in contact with the bracket. The flange portion is provided with an insertion hole into which the locking portion of a wire harness fixing clip is inserted, and the sleeve body is fixed to the bracket by fitting the wire harness fixing clip to the bracket via the flange portion.

[0007] The headrest sleeve is assembled to a bracket fixed to the legs that support the headrest body. This headrest sleeve has a cylindrical sleeve body. A flange extends from one end of the sleeve body. This flange is positioned in contact with the bracket, and insertion holes are provided in both the flange and the bracket for inserting the protruding part of the wire harness fixing clip. The wire harness fixing clip can be fitted into the bracket via the flange, thereby fixing the headrest sleeve to the bracket. This eliminates the need for a claw-locking structure to fix the headrest sleeve to the bracket, resulting in a simpler structure. This reduces costs. Furthermore, since the fixing of the wire harness and the fixing of the headrest sleeve can be performed together, assembly work efficiency can be improved. This also contributes to cost reduction. [Effects of the Invention]

[0008] As described above, the fixing structure for the headrest sleeve according to the present invention allows the headrest sleeve itself to be made using a simple block-stitch construction. Furthermore, the fixing work for the headrest sleeve and the fixing work for the wire harness can be performed together, improving assembly work efficiency. As a result, costs can be reduced. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view showing the configuration of a headrest according to an embodiment of the present invention, viewed from the rear. [Figure 2] This is a perspective view showing the state after the outer covering material and tassel material have been removed from the state shown in Figure 1. [Figure 3] This is a perspective view showing the state after removing the wire harness and headrest sleeve from the state shown in Figure 2. [Figure 4] This is a perspective view showing the headrest sleeve from a distance. [Figure 5]This is a perspective view showing the connector attached to the wire harness fixing clip. [Modes for carrying out the invention]

[0010] Hereinafter, an embodiment of the headrest 1 of the present invention will be described with reference to Figures 1 to 5.

[0011] As shown in Figure 1, the headrest 1 is a head support that supports the occupant's head from behind, and mainly consists of a headrest frame 10 which forms the skeleton, a cushioning material 20 which is placed on the headrest frame 10, and a surface material 30 which covers the headrest frame 10 and the cushioning material 20.

[0012] The cushioning material 20 is an elastic body formed from an elastic material such as urethane, and it combines the function of a cushioning material with the function of allowing sound output from the speaker 50 to pass through by drilling holes in the cushioning material 20.

[0013] The outer skin material 30 is a covering material formed from an elastic fabric material or the like, and it combines the function of a covering material with the function of allowing sound output from the speaker 50 to pass through by drilling holes in the outer skin material 30.

[0014] As shown in Figures 2 and 3, the headrest frame 10 is manufactured by bending a metal pipe and has a roughly inverted U-shape when viewed from the front to the back. Specifically, the headrest frame 10 consists of a pair of left and right legs 11 that extend vertically and are spaced apart horizontally, and a connecting part 12 that connects the upper ends 11a of the left and right legs 11 in the horizontal direction. The pair of left and right legs 11 have a cylindrical straight section 11b that extends downward from the upper end 11a. The connecting part 12, which is the upper end of the upper straight section 11b that connects to the upper end 11a, is smoothly connected to the upper end 11a. In addition, the pair of left and right legs 11 have a rear straight section 11c that extends rearward from the lower end of the upper straight section 11b, and a lower straight section 11d that extends downward from the rear end of the rear straight section 11c, and the boundaries of each are bent into a curved shape. The lower end of the lower straight section 11d is connected to a seat back (not shown), and the left and right leg sections 11 are supported in a height-adjustable manner in the vertical direction by a pair of left and right headrest supports provided at the upper end of the seat back (not shown). Brackets 13 for attaching a headrest sleeve 40, a speaker 50, and a connector 61a, which will be described later, are fixed to this headrest frame 10. Furthermore, impact-absorbing material 70 is attached to the connection portion 12 and the rear straight portion 11c of the headrest frame 10 to protect the occupant's head from impact.

[0015] As shown in Figure 3, the bracket 13 is a component made by bending a flat steel plate into a roughly U-shape, and is fixed by welding between the left and right leg portions 11 of the headrest frame 10. The lower bottom of the bracket 13 is provided with an insertion hole 13a through which the sleeve body 40a of the headrest sleeve 40 shown in Figure 4 is inserted, and a fitting hole 13b into which the protruding portion 62a of the resin wire harness fixing clip 62 shown in Figure 5 is fitted.

[0016] The headrest sleeve 40, as shown in FIG. 4, includes a sleeve body 40a formed in a rectangular cylindrical shape, and a flange portion 40b that extends in a flange shape from one end of the sleeve body 40a and is disposed in contact with the bracket 13. An insertion hole 40c through which a protruding portion 62a of a wire harness fixing clip 62 is inserted is provided in the flange portion 40b.

[0017] As shown in FIG. 2, the headrest 1 includes a pair of left and right speakers 50, and these speakers 50 are fixed to the bracket 13 facing the occupant. Further, the speaker 50 is pre-connected to a wire harness 60 having a connector 60a, and the connector 60a is connected to a connector 61a attached to a wire harness fixing clip 62. The wire harness fixing clip 62 is fixed downward to the bracket 13 via the headrest sleeve 40. Specifically, the protruding portion 62a of the wire harness fixing clip 62 shown in FIG. 5 is inserted into an insertion hole 13b provided in the flange portion 13a of the headrest sleeve 40 and a fitting hole 13b provided in the bracket 13, and fits with the bracket 13. The wire harness 61 connected to the speaker 50 side passes through the inside of the headrest sleeve 40 in a bundled state toward the seat back side and is connected to a wire harness connected to an audio device on the vehicle body side (not shown).

[0018] In the above configuration, since the wire harness fixing clip 62 is fixed to the bracket 13 via the flange portion 13a of the headrest sleeve 40, there is no need to provide a fixing member for fixing the headrest sleeve 40 to the bracket 13, and the headrest sleeve 40 itself can have a simple structure. Also, since the fixing operation of the headrest sleeve 40 and the fixing operation of the wire harness 60 can be performed simultaneously, the assembly work efficiency can be improved. As a result, cost reduction can be achieved.

[0019] As described above, the present invention has been specifically described based on preferred embodiments. However, it is needless to say that the present invention is not limited to the above embodiments and examples, and various modifications are possible.

Industrial Applicability

[0020] The headrest structure of the present invention can be applied to vehicle seats equipped with electrical devices such as audio equipment.

Explanation of Reference Numerals

[0021] 1 Headrest 10 Headrest Frame 11 Leg 11a Upper End 11b Upper Straight Portion 11c Rear Straight Portion 11d Lower Straight Portion 12 Connection Portion 13 Bracket 13a Insertion Hole 13b Fitting Hole 20 Cushion Material 30 Skin Material 40 Sleeve for Headrest 40a Sleeve Body 40b Flange Portion 40c Insertion Hole 50 Speaker 60 Wire Harness 60a Connector 61 Wire Harness 61a Connector 61b Connector 62 Clip for Fixing Wire Harness 62a Protrusion 70 Impact Absorbing Material

Claims

[Claim 1] The mounting structure for the headrest sleeve, which is assembled to a bracket fixed to the leg portion of the frame that supports the headrest body, consists of a cylindrical sleeve body and a flange portion that extends in a flange shape from one end of the sleeve body and is positioned in contact with the bracket, the flange portion is provided with an insertion hole into which the protruding portion of a wire harness fixing clip is inserted, and the bracket is provided with a fitting hole in the same position as the insertion hole, and the sleeve body is fixed to the bracket by fitting the wire harness fixing clip to the bracket via the flange portion.

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