Armrest and vehicle seat

The armrest design with a visible displacement portion and trim cover improves fastening workability by exposing fastening members, ensuring easy attachment to the seat back without increasing member length or weight.

JP2025140881APending Publication Date: 2025-09-29NHK SPRING CO LTD
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Patent Information

Application Number
JP2024040500
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-03-14
Publication Date
2025-09-29

AI Technical Summary

Technical Problem

Existing armrest designs with internal fastening members, such as bolts, hinder the workability of fastening operations.

Method used

An armrest design featuring a displacement portion in the pad that exposes the fastening member engagement portion visibly, allowing easy engagement and limited displacement with a trim cover.

Benefits of technology

Enhances the ease of fastening operations by visually guiding the fastening process and preventing unnecessary displacement, thus maintaining workability and reducing the need for longer fastening members.

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Abstract

To suppress deterioration of workability in a coupling work with a coupling member.SOLUTION: An armrest 16 includes: an armrest frame 18 having a coupling member engagement part 26 with which a coupling member 24 is to be engaged; an armrest pad 20 formed around the armrest frame 18 while the coupling member engagement part 26 is arranged inside; and a displacement part 38 constituting a part of the armrest pad. The displacement part 38 is displaced with respect to the other one part of the armrest pad 20, so that the coupling member engagement part 26 is exposed in a visually recognizable state.SELECTED DRAWING: Figure 3
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Description

[Technical Field]

[0001] The present invention relates to an armrest and a vehicle seat. [Background technology]

[0002] Patent Document 1 below discloses a vehicle seat equipped with an armrest supported by a seat back. The seat back described in this document is provided with a bracket for fixing the armrest. A bolt inserted into the armrest is threaded into a nut provided on the bracket, thereby supporting the armrest on the seat back. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-197078 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in a configuration in which fastening members such as bolts are placed inside the armrest, as described in Patent Document 1 above, there is room for improvement in terms of preventing a decrease in the workability of the fastening work using the fastening members.

[0005] In consideration of the above, an object of the present invention is to provide an armrest and a vehicle seat that can prevent a decrease in the workability of fastening work using fastening members. [Means for solving the problem]

[0006] The armrest of the first embodiment comprises an armrest frame having a fastening member engagement portion with which a fastening member engages, an armrest pad formed around the armrest frame with the fastening member engagement portion disposed therein, and a displacement portion that forms part of the armrest pad and that can be displaced relative to another part of the armrest pad to expose the fastening member engagement portion in a visible manner.

[0007] The armrest of the first aspect includes an armrest frame having a fastening member engagement portion with which a fastening member engages, and an armrest pad formed around the armrest frame with the fastening member engagement portion disposed therein. A portion of the armrest pad is a displacement portion that can be displaced relative to another portion of the armrest pad. When the displacement portion is displaced, the fastening member engagement portion is visibly exposed. This allows the fastening member to be visibly engaged with the fastening member engagement portion. As a result, the fastening member can be easily engaged with the fastening member engagement portion, and the ease of fastening work using the fastening member can be prevented from being reduced.

[0008] The armrest of the second aspect is the armrest of the first aspect, further comprising a trim covering the armrest pad, and when the trim is attached to the armrest pad, the displacement of the displacement portion is limited.

[0009] In the armrest of the second aspect, by attaching the trim to the armrest pad, it is possible to limit unnecessary displacement of the displacement portion of the armrest pad.

[0010] The vehicle seat of the third aspect comprises a seat back that supports the back of a seated occupant from the rear side of the seat, an armrest described in the first or second aspect that supports the arms of the seated occupant from the underside of the seat, and the fastening member that maintains the armrest attached to the seat back when engaged with the fastening member engagement portion and fastened to the seat back side.

[0011] In the vehicle seat of the third aspect, when the displacement portion of the armrest pad constituting part of the armrest is displaced, the fastening member engagement portion is visibly exposed. This allows the fastening member to be visibly engaged with the fastening member engagement portion. As a result, the fastening member can be easily engaged with the fastening member engagement portion, and the workability of fastening the fastening member to the seat back side can be prevented from being reduced. [Effects of the Invention]

[0012] The armrest and vehicle seat according to the present invention have the excellent effect of suppressing a decrease in the workability of fastening work using fastening members. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a side view schematically showing a vehicle seat; [Figure 2] FIG. 2 is an exploded perspective view showing the armrest. [Figure 3] 10 is a perspective view showing an armrest pad and the like, illustrating a state in which a displacement portion is displaced relative to an armrest pad main body. FIG. [Figure 4] FIG. 4 is a cross-sectional view showing the armrest frame. DETAILED DESCRIPTION OF THE INVENTION

[0014] A vehicle seat 10 according to an embodiment of the present invention will be described with reference to Figures 1 to 4. In the drawings, the arrow FR indicates the front side of the seat, the arrow UP indicates the upper side of the seat, the arrow LH indicates the left side in the seat width direction, and the arrow RH indicates the right side in the seat width direction. Furthermore, in the following description, unless otherwise specified, when referring to front-rear, up-down, and left-right directions, these refer to front-rear in the front-rear direction of the seat, up-down in the seat up-down direction, and left-right in the seat width direction.

[0015] 1, the vehicle seat 10 of this embodiment includes a seat cushion 12 that supports the buttocks of a seated occupant from below, and a seat back 14 that supports the back of the seated occupant from the rear. The vehicle seat 10 also includes armrests 16 that support the arms of the seated occupant from below.

[0016] The armrest 16 is attached to the left end of the seat back 14. The armrest 16 may be attached so as to be movable relative to the seat back 14, or may be attached so as not to be movable relative to the seat back 14. In the following description, the directions of the armrest 16 refer to the directions when the armrest 16 is positioned so that it can be used (capable of supporting the arm of a seated occupant).

[0017] As shown in Figures 2, 3 and 4, the armrest 16 comprises an armrest frame 18 (hereinafter simply referred to as "frame 18") that forms the skeleton of the armrest 16, an armrest pad 20 (hereinafter simply referred to as "pad 20") formed around the frame 18, and a trim 22 that covers the pad 20.

[0018] As shown in FIG. 4, the frame 18 is formed, for example, using a metal material. The frame 18 includes a fastening member engaging portion 26 that engages with a fastening member 24 (see FIG. 2) and a front extension portion 28 that extends forward from the fastening member engaging portion 26. The fastening member engaging portion 26 includes a cylindrical portion 30 that is formed into a cylindrical shape with its axial direction extending in the left-right direction, and an inner wall portion 32 that is provided to close the right end of the cylindrical portion 30. A fastening member insertion hole 34 that penetrates the inner wall portion 32 is formed in the center of the inner wall portion 32. The front extension portion 28 is formed using a cylindrical member. The rear end of the front extension portion 28 is joined to the outer circumferential surface of the cylindrical portion 30 by welding or the like.

[0019] 2, 3, and 4, the pad 20 is, for example, a urethane pad formed around the frame 18 and is formed into a predetermined shape. More specifically, the pad 20 includes an armrest pad main body 36 (hereinafter simply referred to as the "pad main body 36") that constitutes the majority of the pad 20, and a displacement portion 38 that is provided so as to be displaceable relative to the pad main body 36.

[0020] The pad body 36 is formed as a rectangular block overall, with a hollowed-out portion at the upper left side of its rear end. The space at the upper left side of the rear end of the pad body 36 will be referred to as the hollowed-out space 40. The right side of the rear end of the pad body 36 forms an embedded engagement portion 42 in which the fastening member engagement portion 26 is embedded. The right side of the inner wall portion 32 is exposed to the right of the embedded engagement portion 42. The left end of the cylindrical portion 30 is exposed to the left of the embedded engagement portion 42. Thus, the left end of the cylindrical portion 30 is located on the hollowed-out space 40 side. The left side of the rear end of the pad body 36 forms a displacement portion facing portion 44 that is disposed vertically opposite a displacement portion 38 (described later). The upper portion of the displacement portion facing portion 44 forms the underside of the hollowed-out space 40. Furthermore, a recess 48 is formed in the middle of the upper portion of the displacement portion opposing portion 44 in the front-to-rear direction, forming a part of the inner surface of a communication hole 46 that communicates with the cylindrical portion 30. The portion of the pad main body 36 that is forward of the fastening member engaging portion 26 and the displacement portion opposing portion 44 forms a general portion 50. Most of the front extension portion 28 is disposed inside this general portion 50. The general portion 50 is the portion to which the load from the arms of a seated occupant is input.

[0021] The displacement portion 38 is formed in the shape of a rectangular block corresponding to the shape of the cutout space 40. The upper end of the front part of this displacement portion 38 forms a hinge portion 52 that is connected to the upper end of the general portion 50. By tilting the displacement portion 38 in the vertical direction about this hinge portion 52 as an axis, it is possible to displace the displacement portion 38 from a position where it is disposed in the cutout space 40 (see FIG. 2) to a position where most of the displacement portion 38 is positioned above the cutout space 40. When the displacement portion 38 is positioned in the cutout space 40, a recess 54 that forms another part of the inner surface of the communication hole 46 that communicates with the cylindrical portion 30 is formed in the middle portion in the front-to-rear direction of the lower part of the displacement portion 38.

[0022] The trim 22 is made of cloth, leather, or synthetic leather, and is formed in a bag shape that covers the pad 20. When the trim 22 is attached to the pad 20, the displacement of the displacement portion 38 relative to the pad body 36 is limited. This allows the displacement portion 38 to be maintained in a position within the cutout space 40.

[0023] (Actions and Effects of This Embodiment) Next, the operation and effects of this embodiment will be described.

[0024] As shown in FIGS. 1, 2, 3 and 4, in the vehicle seat 10 of the present embodiment described above, the armrest 16 can be attached to the seat back 14 through the following procedure.

[0025] 1, 2, and 4, first, the fastening member 24 is inserted into the cylindrical portion 30 of the fastening member engaging portion 26 through the communication hole 46 formed in the pad 20, and into the fastening member insertion hole 34 formed in the inner wall portion 32. Next, the fastening member 24 is fastened to a fastening portion provided on the seat back 14 side. Next, the trim 22 is attached to the pad 20. By going through the above procedures, the armrest 16 can be attached to the seat back 14.

[0026] In this embodiment, the armrest 16 can also be attached to the seat back 14 by the following procedure.

[0027] As shown in Figures 1, 2, 3, and 4, first, the displacement portion 38 is tilted upward around the hinge portion 52 as an axis, displacing the displacement portion 38 to a position where most of the displacement portion 38 is positioned above the cutout space 40. In this state, the fastening member engaging portion 26 is visibly exposed. Next, the fastening member 24 is inserted into the cylindrical portion 30 of the fastening member engaging portion 26 and into the fastening member insertion hole 34 formed in the inner wall portion 32. Next, the fastening member 24 is fastened to a fastening portion provided on the seat back 14 side. Next, the displacement portion 38 is tilted downward around the hinge portion 52 as an axis, returning the displacement portion 38 to the cutout space 40. Next, the trim 22 is attached to the pad 20. Through the above steps, the armrest 16 can be attached to the seat back 14. Here, in this procedure, the fastening member 24 can be easily inserted into the cylindrical portion 30 of the fastening member engaging portion 26 and the fastening member insertion hole 34 while visually checking the cylindrical portion 30 of the fastening member engaging portion 26 and the fastening member insertion hole 34. This makes it possible to prevent a decrease in the ease of fastening the fastening member 24 to the seat back 14. Furthermore, in this procedure, it is not necessary to increase the length of the fastening member 24 in order to make it easier to insert the fastening member 24 into the cylindrical portion 30 of the fastening member engaging portion 26 and the fastening member insertion hole 34. As a result, an increase in the weight of the fastening member 24 is suppressed, and an increase in the weight of the vehicle seat 10 is also suppressed.

[0028] Furthermore, when the trim 22 is attached to the pad 20, the displacement of the displacement portion 38 relative to the pad body 36 is limited. This makes it possible to limit unnecessary displacement of the displacement portion 38 relative to the pad body 36.

[0029] In this embodiment, an example has been described in which a communication hole 46 that communicates with the cylindrical portion 30 of the fastening member engagement portion 26 is formed in the pad 20, but a configuration in which the communication hole 46 is not formed can also be adopted.

[0030] The above describes one embodiment of the present invention, but the present invention is not limited to the above, and it goes without saying that it can be implemented in various other modified forms within the scope of the gist of the present invention. [Explanation of symbols]

[0031] 10 Vehicle seats 14 Seat back 16 Armrest 18 Armrest frame 20 Armrest Pad 22 Trim 24 Fastening members 26 Fastening member engagement portion 38 Displacement section

Claims

1. an armrest frame having a fastening member engaging portion with which a fastening member engages; an armrest pad formed around the armrest frame with the fastening member engagement portion disposed therein; a displacement portion that constitutes a part of the armrest pad and that, when displaced relative to another part of the armrest pad, exposes the fastening member engagement portion in a visible state; Armrest with.

2. a trim covering the armrest pad; The armrest according to claim 1, wherein the displacement of the displacement portion is limited when the trim is attached to the armrest pad.

3. a seat back that supports the back of a seated occupant from the rear side of the seat; the armrest according to claim 1, which supports the arms of a seated occupant from below the seat; the fastening member that maintains the attachment state of the armrest to the seat back in a state where the fastening member is engaged with the fastening member engagement portion and fastened to the seat back side; A vehicle seat comprising:

Citation Information

Patent Citations

  • Vehicle seat

    JP2017197078A