Vehicle seat

The vehicle seat design with a cushion pad, trim, and adjustment member allows for comfort adjustment without altering the seat's appearance by replacing or attaching the adjustment member, ensuring consistent aesthetics.

JP2025144757APending Publication Date: 2025-10-03NHK SPRING CO LTD
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Patent Information

Application Number
JP2024044597
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-03-21
Publication Date
2025-10-03

AI Technical Summary

Technical Problem

Existing vehicle seats struggle to adjust seating comfort without altering the appearance.

Method used

A vehicle seat design featuring a cushion pad, cushion trim, and an adjustment member between them, allowing for easy replacement or attachment of the adjustment member to adjust comfort while maintaining the seat's appearance.

Benefits of technology

The design enables adjustable seating comfort without noticeable changes in the seat's appearance, eliminating the need for varying adjustment member thicknesses.

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Abstract

To provide a vehicle seat in which appearance change can be suppressed and seating feeling can be adjusted.SOLUTION: A vehicle seat 10 has: a cushion pad 16 which constitutes a part of a seat cushion 12 supporting the hip of a seated occupant from a seat lower side; and a cushion trim 18 which constitutes another part of the seat cushion 12 and covers the cushion pad 16. The vehicle seat 10 includes an adjustment member 20 provided between the cushion pad 16 and the cushion trim 18. A part of the cushion trim 18 can be opened and closed to another part of the cushion trim. In addition, the adjustment member 20 can be replaced by opening / closing the part of the cushion trim 18 to another portion.SELECTED DRAWING: Figure 1
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Description

[Technical Field]

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

[0002] Patent Document 1 below discloses a vehicle seat that allows easy changes to seating comfort and overall design. The vehicle seat described in this document has a seat body that includes a main part where the occupant sits and left and right side parts provided on either side of the main part. Furthermore, an interchangeable pad fits between the left and right side parts, making the interchangeable pad replaceable with respect to the seat body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-115411 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, the configuration described in Patent Document 1 above is useful from the viewpoint of being able to adjust the seating comfort by replacing the interchangeable pad with the seat main body, but there is room for improvement in terms of adjusting the seating comfort while suppressing changes in the appearance of the vehicle seat.

[0005] In consideration of the above, an object of the present invention is to provide a vehicle seat that can adjust the seating comfort while suppressing changes in appearance. [Means for solving the problem]

[0006] A first embodiment of a vehicle seat includes a cushion pad that forms part of a seat cushion that supports the buttocks of a seated occupant from the underside of the seat; a cushion trim that forms another part of the seat cushion, a part of which can be opened and closed relative to another part, or a part of which can be attached and detached relative to another part, and that covers the cushion pad; and an adjustment member that is provided between the cushion pad and the cushion trim, and that can be replaced by opening and closing a part of the cushion trim relative to another part, or by attaching and detaching a part of the cushion trim relative to another part.

[0007] In a vehicle seat of a first aspect, the buttocks of a seated occupant are supported from below the seat by a seat cushion. Here, a cushion pad constituting one part of the seat cushion is covered by a cushion trim constituting another part of the seat cushion. In addition, an adjustment member is provided between the cushion pad and the cushion trim. The adjustment member can be replaced by opening or closing one part of the cushion trim relative to another part, or by attaching or detaching one part of the cushion trim relative to another part. In this configuration, the seating comfort can be adjusted by replacing the adjustment member. In addition, when the adjustment member is disposed between the cushion pad and the cushion trim, the adjustment member is covered by the cushion trim. This makes it possible to suppress changes in the appearance of the seat cushion (vehicle seat) that may occur when the adjustment member is replaced.

[0008] The vehicle seat of the second aspect is the vehicle seat of the first aspect, in which a portion of the cushion trim is connected to another portion via a fastener, and by opening and closing the fastener, it is possible to open and close the portion of the cushion trim relative to the other portion, or to attach and detach the portion of the cushion trim relative to the other portion.

[0009] In the vehicle seat of the second aspect, the adjustment members can be easily replaced by opening and closing the fasteners. [Effects of the Invention]

[0010] The vehicle seat according to the present invention has the excellent effect of being able to adjust the seating comfort while suppressing changes in appearance. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a perspective view of a vehicle seat according to a first embodiment, viewed obliquely from the front side. [Figure 2] 1 is a perspective view of a seat cushion of a vehicle seat according to a first embodiment, seen from the diagonally front side, illustrating a state in which a part of the cushion trim is opened and closed and an adjustment member is replaced. FIG. [Figure 3] FIG. 10 is a perspective view of a vehicle seat according to a second embodiment, as viewed obliquely from the front side. [Figure 4] 10 is a perspective view of a seat cushion of a vehicle seat according to a second embodiment, seen from the diagonally front side, illustrating a state in which a part of the cushion trim is opened and closed and an adjustment member is replaced. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0012] (First embodiment) A vehicle seat 10 according to a first embodiment of the present invention will be described using Figures 1 and 2. In the figures, 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. 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 seat front-rear direction, up-down in the seat up-down direction, and left-right in the seat width direction.

[0013] As shown in FIG. 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.

[0014] As shown in Figures 1 and 2, the seat cushion 12 includes a cushion pad 16, a cushion trim 18 that covers the cushion pad 16, and an adjustment member 20 that is disposed between the cushion pad 16 and the cushion trim 18.

[0015] As shown in FIG. 2, the cushion pad 16 is formed into a predetermined shape using urethane foam or the like, and is formed into a rectangular block shape as an example. A recess 16A that is open upward is formed in the center of the rear portion of the cushion pad 16 in the left-right direction. The space within this recess 16A is a rectangular parallelepiped space that corresponds to the shape of an adjustment member 20, which will be described later. This makes it possible to fit the adjustment member 20, which will be described later, into the recess 16A. Note that a configuration in which the recess 16A is not formed in the cushion pad 16 can also be adopted. In this case, it is sufficient to provide an area on the cushion pad 16 on which the adjustment member 20, which will be described later, is placed.

[0016] The cushion trim 18 is formed using a sheet-like material such as cloth, leather, or synthetic leather. The cushion trim 18 includes an upper surface covering portion 18A that covers the upper surface of the cushion pad 16, a front surface covering portion 18B that covers the front surface of the cushion pad 16, a pair of left and right side surface covering portions 18C that cover the left and right sides of the cushion pad 16, respectively, and a rear surface covering portion that covers the rear surface of the cushion pad 16. The portion of the upper surface covering portion 18A that faces the depression 16A formed in the cushion pad 16 in the vertical direction is a door portion 18A2 that can be opened and closed by lifting up the surrounding portion (hereinafter simply referred to as a "general portion 18A1"). As shown in FIGS. 1 and 2, the door portion 18A2 is formed in a rectangular shape corresponding to the shape of the depression 16A when viewed from above. The rear end of the door portion 18A2 is connected to the general portion 18A1. Furthermore, the right end, front end, and left end of the door portion 18A2 are detachably connected to the general portion 18A1 via fasteners 22. Note that the fasteners 22 are not shown in Fig. 2. Here, the fasteners 22 in this embodiment are line fasteners known as zippers or chucks, but other fasteners such as hook-and-loop fasteners or point fasteners may also be used.

[0017] The adjustment member 20 is formed in a rectangular parallelepiped shape corresponding to the space within the recess 16A formed in the cushion pad 16. A plurality of types of adjustment members 20 with different deformation characteristics when a load is input are prepared. The deformation characteristics of the adjustment member 20 may be the same as those of the cushion pad 16. Alternatively, the adjustment member 20 may be formed using a urethane pad with a lower density than the cushion pad 16, thereby making the adjustment member 20 more flexible than the cushion pad 16. Alternatively, the adjustment member 20 may be formed using a urethane pad with a higher density than the cushion pad 16, thereby making the adjustment member 20 less flexible than the cushion pad 16. Alternatively, the adjustment member 20 may be formed using a fiber cushion or a gel mat, which have deformation characteristics significantly different from those of a urethane pad. The adjustment member 20 described above is fitted into the recess 16A formed in the cushion pad 16 and is covered from above by the upper surface covering portion 18A (door portion 18A2) of the cushion trim 18.

[0018] (Actions and Effects of This Embodiment) Next, the operation and effects of this embodiment will be described.

[0019] As shown in Figures 1 and 2, in the vehicle seat 10 of this embodiment described above, the buttocks of the seated occupant are supported from below by the seat cushion 12, and the back of the seated occupant is supported from behind by the seat back 14.

[0020] In this embodiment, by opening and closing the fastener 22, the door portion 18A2 constituting a part of the upper surface covering portion 18A of the cushion trim 18 can be opened and closed relative to the general portion 18A1 constituting another part of the upper surface covering portion 18A. This allows the adjustment member 20 fitted into the cushion pad 16 to be replaced. With this configuration, the seating comfort can be adjusted by switching between multiple types of adjustment members 20 with different deformation characteristics to suit the preferences of the seated occupant. Furthermore, when the adjustment member 20 is fitted into the cushion pad 16 and the fastener 22 is closed, the adjustment member 20 is covered from above by the upper surface covering portion 18A (door portion 18A2) of the cushion trim 18. This prevents changes in the appearance of the seat cushion 12 (vehicle seat 10) that may occur when the adjustment member 20 is replaced. Furthermore, with the configuration of this embodiment, it is not necessary to change the vertical thickness of the adjustment member 20 in order to change the seating comfort. As a result, it is not necessary to switch between adjustment members 20 with different vertical thicknesses. This also makes it possible to suppress changes in the appearance of the seat cushion 12 (vehicle seat 10) that occur when the adjustment member 20 is replaced (for example, bulging or collapsing of the upper surface covering portion 18A).

[0021] (Second embodiment) A vehicle seat 24 according to a second embodiment of the present invention will be described with reference to Figures 3 and 4. Note that, in the vehicle seat 24 according to the second embodiment, members and parts corresponding to those of the vehicle seat 10 according to the first embodiment described above will be assigned the same reference numerals as those corresponding to those of the vehicle seat 10 according to the first embodiment, and descriptions thereof may be omitted.

[0022] 3 and 4, in the vehicle seat 24 of this embodiment, the door portion 18A2 constituting a part of the upper surface covering portion 18A is detachable from the general portion 18A1 constituting another part of the upper surface covering portion 18A. Here, in this embodiment, the right end, front end, left end, and rear end of the door portion 18A2 are detachably connected to the general portion 18A1 via fasteners 22.

[0023] In the vehicle seat 24 of the present embodiment described above, the door portion 18A2 constituting a part of the upper surface covering portion 18A of the cushion trim 18 can be attached to and detached from the general portion 18A1 constituting another part of the upper surface covering portion 18A by opening and closing the fastener 22. As a result, in the vehicle seat 24 of the present embodiment, similar to the vehicle seat 10 described above, it is possible to adjust the seating comfort while suppressing changes in the appearance of the seat cushion 12 (vehicle seat 10).

[0024] In this embodiment, an example has been described in which a portion of the cushion trim 18 can be opened / closed or attached / detached to another portion by using the fastener 22, but the present invention is not limited to this. For example, a magnet or the like may be used to enable a portion of the cushion trim 18 to be opened / closed or attached / detached to another portion.

[0025] 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]

[0026] 10 Vehicle seats 12 seat cushions 16 cushion pads 18 Cushion Trim 18A1 General parts (other parts of cushion trim) 18A2 Door section (part of cushion trim) 20 Adjustment member 22 Zipper 24 Vehicle seats

Claims

1. a cushion pad constituting a part of a seat cushion that supports the buttocks of a seated occupant from below the seat; a cushion trim that constitutes another part of the seat cushion, a part of which is openable and closable relative to another part, or a part of which is detachable and attachable to another part, and covers the cushion pad; an adjustment member provided between the cushion pad and the cushion trim, the adjustment member being replaceable by opening and closing a portion of the cushion trim relative to another portion or by attaching and detaching a portion of the cushion trim relative to another portion; A vehicle seat comprising:

2. The part of the cushion trim and the other part are connected via a fastener, 2. The vehicle seat according to claim 1, wherein opening and closing the fastener allows a portion of the cushion trim to be opened or closed relative to another portion, or a portion of the cushion trim to be attached or detached relative to another portion.

Citation Information

Patent Citations

  • Seat device

    JP2012115411A