JP7799526B2 - Pad member and vehicle seat - Google Patents

Description

The present invention relates to a padding member and a vehicle seat.

Patent Document 1 below discloses a gap concealment structure for rear seats in which a cover of the same type as the cover is sewn loosely into a bag-like shape to the seat cushion, thereby concealing the gap and maintaining an aesthetically pleasing appearance.

Japanese Utility Model Application Laid-Open Publication No. 6-81820

While the configuration described in Patent Document 1 is useful from the perspective of maintaining the aesthetic appearance of vehicle seats such as rear seats, it requires that a covering material of the same type as the cover that covers the pad be sewn onto the seat cushion.

In consideration of the above, the present invention aims to prevent gaps around the padding from impairing the aesthetic appearance of the product, without having to sew on a separate cover material.

The pad member of the first aspect comprises a block-shaped pad main body that supports the body of a seated occupant, a skin material that covers the pad main body and has an excess portion that allows a gap to be formed between the pad main body and the skin material, and a biasing portion that is provided between the excess portion and the pad main body and biases the excess portion toward the side opposite the pad main body.

In the first aspect of the pad member, the pad main body is covered with a skin material. The skin material has an excess length that allows a gap to be formed between it and the pad main body. A biasing portion is provided between the excess length and the pad main body. This biasing portion biases the excess length of the skin material toward the opposite side of the pad main body. This causes the excess length of the skin material to protrude toward the opposite side of the pad main body. The protruding excess length, biased by the biasing portion, can close or reduce the gap between the pad member and an adjacent member. This makes it possible to prevent gaps around the pad member from detracting from the pad member's aesthetic appearance.

The pad member of the second aspect is the pad member of the first aspect, further comprising a locking member having a cover material locking portion to which a portion of the cover material is locked and a pad body locking portion to which the pad body is locked, and the biasing portion is formed integrally with the locking member.

In the second aspect of the pad member, the biasing portion is formed integrally with a locking member having a cover material locking portion and a pad body locking portion. In this configuration, by locking the pad body locking portion of the locking member to the pad body while a portion of the cover material is locked to the cover material locking portion of the locking member, the cover material can be attached to the pad body and the excess length can be protruded by the biasing portion.

The pad member of the third aspect is the pad member of the second aspect, wherein the end of the biasing portion opposite the upholstery material engaging portion and the pad main body engaging portion forms a bulging portion that bulges out toward the upholstery material engaging portion and the pad main body engaging portion of the biasing portion.

The pad member of the third aspect can prevent localized increases in contact pressure between the biasing portion and the upholstery material compared to a configuration in which the end of the biasing portion opposite the upholstery material engaging portion and the pad main body engaging portion does not form a bulge.

A fourth aspect of the vehicle seat comprises a seat body having a seat cushion that supports the buttocks of a seated occupant from below the seat and a seat back that supports the back of the seated occupant from the rear side of the seat; a cover member attached to the seat body and covering a portion of the seat body; and a pad member according to any one of the first to third aspects that constitutes a portion of the seat cushion and the seat back, with the excess length portion positioned opposite the cover member.

In the vehicle seat of the fourth aspect, the excess length of the upholstery material that protrudes when biased by the biasing portion can close or reduce the gap between the pad member and the cover member. This prevents the gap around the pad member from spoiling the aesthetic appearance.

This invention prevents gaps around the padding from impairing the aesthetic appearance, without requiring the use of a separate covering material.

1 is a perspective view schematically illustrating a vehicle seat; 2 is a cross-sectional view showing the seat cushion and the cover member taken along line 2-2 shown in FIG. 1. FIG. 3 is a cross-sectional view corresponding to FIG. 2 showing a seat cushion and another type of cover member.

A vehicle seat 10 according to an embodiment of the present invention will be described using Figures 1 and 2. Note that the arrows FR, UP, LH, and RH shown in the figures indicate the front, upper, left, and right sides of the seat as seen by an occupant seated in the vehicle seat 10, respectively. Hereinafter, when the terms "front-rear," "up-down," and "left-right" are used simply, they refer to the front-rear direction of the seat, the up-down direction of the seat, and the left-right direction of the seat, unless otherwise specified. The left-right direction of the seat coincides with the width direction of the seat.

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, a seat back 14 that supports the back of the seated occupant from the rear, and a headrest 16 that supports the head of the seated occupant from the rear. The seat cushion 12 and the seat back 14 form a seat body 18. The vehicle seat 10 also includes a lifting mechanism (not shown) that supports the seat body 18 so that it can be displaced in the up-down direction, a sliding mechanism (not shown) that supports the seat body 18 so that it can be displaced in the front-rear direction, and a cover member 20 that covers a portion of the seat body 18.

The seat cushion 12 is constructed by attaching a cushion pad member 22 as a pad member to a cushion frame (not shown) that forms the skeleton of the seat cushion 12. The seat back 14 is also formed by attaching a back pad member 24 as a pad member to a back frame (not shown) that forms the skeleton of the seat back 14.

As shown in Figures 1 and 2, the cushion pad member 22 comprises a pad main body 26 formed into a block shape of a predetermined shape using urethane or the like, a skin material 28 covering the pad main body 26, and a locking member 30.

As shown in FIG. 1, the pad main body 26 is configured to deform when a load from a seated occupant is input, thereby supporting the buttocks of the seated occupant. Specifically, the pad main body 26 includes a main portion 32 that forms the center portion in the seat width direction, and a pair of left and right side support portions 34 that form both sides in the seat width direction. Furthermore, as shown in FIG. 2, the pad main body 26 includes an outer protrusion 36 that protrudes downward from the left side support portion 34 (see FIG. 1), which is on the outer side in the seat width direction.

The cover material 28 is formed into a sheet shape using leather or cloth. In this embodiment, the cover material 28 includes a first covering portion 40 that covers the outer surface of the outer protrusion 36 in the seat width direction, and a second covering portion 42 that covers the lower surface 36A of the outer protrusion 36. The second covering portion 42 extends from the lower end of the first covering portion 40 toward the inner side in the seat width direction, and the inner end 42A of the second covering portion 42 in the seat width direction is secured by stitching to a cover material securing portion 52 of the securing member 30 (described below). The member indicated by the reference numeral 46 is a stitching portion that sews the inner end 42A of the second covering portion 42 to the cover material securing portion 52 of the securing member 30. In this embodiment, the second covering portion 42 has an excess portion 42B that allows a gap 48 to be formed between the second covering portion 42 and the lower surface 36A of the outer protrusion 36. Additionally, the inner surface of the outer protrusion 36 in the seat width direction is in contact with the cushion side frame 38.

The locking member 30 is formed using a resin material or the like. This locking member 30 includes a pad main body locking portion 50 formed with a generally U-shaped cross section that is open at the top, and a cover material locking portion 52 that extends upward from the upper end of the pad main body locking portion 50 on the outer side in the seat width direction. The cross section from the pad main body locking portion 50 to the cover material locking portion 52 is generally J-shaped.

The pad main body engaging portion 50 is engaged with an engaged portion 54 provided on the cushion side frame 38, for example. The pad main body engaging portion 50 is provided with an engaging protrusion 50A to maintain the engaged state between the pad main body engaging portion 50 and the engaged portion 54.

The outer end 42A of the second covering portion 42 in the seat width direction is sewn to the inner surface of the cover material engaging portion 52 in the seat width direction.

The locking member 30 also has a biasing portion 56 that protrudes from the lower end of the pad main body locking portion 50 toward the lower side of the seat and inward in the seat width direction. The side of the biasing portion 56 facing the pad main body locking portion 50 is a plate-shaped base portion 56A. The side of the biasing portion 56 opposite the pad main body locking portion 50 is a bulge portion 56B that bulges outward from the base portion 56A. The outer peripheral surface 56C of the bulge portion 56B is a gently curved cylindrical surface.

The biasing portion 56 described above is positioned within the gap 48 formed between the lower surface 36A of the outer convex portion 36 and the excess portion 42B of the second covering portion 42. When the biasing portion 56 is positioned within this gap 48, the biasing portion 56 is deformed upward relative to the pad body engaging portion 50. The force of the biasing portion 56 attempting to return downward relative to the pad body engaging portion 50 presses the excess portion 42B of the second covering portion 42 downward, causing it to protrude.

Furthermore, a cover member 20 is provided below the left end 22A of the cushion pad member 22, covering part of the seat cushion frame that constitutes part of the seat cushion 12. This cover member 20 has a top wall portion 20A that extends left-right and front-rear, with the thickness direction being the up-down direction. The excess length portion 42B of the second covering portion 42, which protrudes downward when pressed by the biasing portion 56 of the locking member 30, abuts against the top wall portion 20A of the cover member 20.

(Actions and Effects of the Present Embodiment)
Next, the operation and effects of this embodiment will be described.

1 and 2, in the vehicle seat 10 of the present embodiment described above, the excess length 42B of the second covering portion 42, which protrudes downward when pressed by the biasing portion 56 of the locking member 30, abuts against the top wall portion 20A of the cover member 20. As a result, the excess length 42B of the second covering portion 42 closes the gap 58 formed between the left end portion 22A of the cushion pad member 22 and the top wall portion 20A of the cover member 20. This prevents the gap 58 formed between the left end portion 22A of the cushion pad member 22 and the top wall portion 20A of the cover member 20 from detracting from the aesthetic appearance of the vehicle seat 10. In this way, in this embodiment, the gap 58 does not need to be sewn to the second covering portion 42 or the like to close the gap 58, and prevents the gap 58 from detracting from the aesthetic appearance of the vehicle seat 10.

In addition, in this embodiment, the biasing portion 56 is formed integrally with the locking member 30, which has the cover material locking portion 52 and the pad main body locking portion 50. With this configuration, the cover material 28 can be attached to the pad main body 26 and the excess length portion 42B can be protruded downward by the biasing portion 56 by locking the pad main body locking portion 50 of the locking member 30 to the locked portion 54 while the seat width direction outer end 42A of the second covering portion 42 of the cover material 28 is locked to the cover material locking portion 52 of the locking member 30.

In addition, in this embodiment, the end of the biasing portion 56 opposite the pad body engaging portion 50 is a bulge portion 56B that bulges out relative to the base portion 56A, and the outer peripheral surface 56C of the bulge portion 56B is a gently curved cylindrical surface. This makes it possible to prevent localized increases in contact pressure between the biasing portion 56 and the cover material 28 compared to a configuration in which the end of the biasing portion 56 opposite the pad body engaging portion 50 does not have the bulge portion 56B of the above configuration.

In the example described above, a bulge 56B is provided on the side of the biasing portion 56 opposite the pad body engaging portion 50, but the present invention is not limited to this. Whether or not to provide a bulge 56B and the shape of the bulge 56B can be determined appropriately taking into account factors such as the shape of the excess portion 42B when pressed by the biasing portion 56.

In addition, in this embodiment, an example has been described in which the biasing portion 56 is formed integrally with the locking member 30 having the upholstery locking portion 52 and the pad main body locking portion 50, but the present invention is not limited to this. For example, a configuration may be adopted in which a member that functions only as the biasing portion 56 is provided as a separate member from the locking member 30.

Furthermore, in this embodiment, the excess length 42B of the second covering portion 42, which protrudes downward as a result of being pressed by the biasing portion 56 of the locking member 30, abuts against the top wall portion 20A of the cover member 20. However, the present invention is not limited to this. For example, the excess length 42B of the second covering portion 42, which protrudes downward as a result of being pressed by the biasing portion 56 of the locking member 30, may be spaced apart from the top wall portion 20A of the cover member 20. Even in this configuration, the gap 58 formed between the left end portion 22A of the cushion pad member 22 and the top wall portion 20A of the cover member 20 is reduced (narrowed) by the excess length 42B of the second covering portion 42. This prevents the gap 58 formed between the left end portion 22A of the cushion pad member 22 and the top wall portion 20A of the cover member 20 from detracting from the aesthetic appearance of the vehicle seat 10.

Also, as shown in FIG. 3, a flange portion 20B may be provided that bends and extends upward from the outer end of the top wall portion 20A of the cover member 20 in the seat width direction. By providing this flange portion 20B, the gap 58 formed between the left end portion 22A of the cushion pad member 22 and the top wall portion 20A of the cover member 20 becomes less visible. This further prevents the gap 58 formed between the left end portion 22A of the cushion pad member 22 and the top wall portion 20A of the cover member 20 from detracting from the aesthetic appearance of the vehicle seat 10.

Furthermore, the configuration of the present invention described above can be applied not only to closing or reducing the gap 58 formed between the cushion pad member 22 and the cover member 20, but also to closing or reducing the gap formed between the cushion pad member 22 and other members. Furthermore, the configuration of the present invention described above can also be applied to the seat back 14 side.

The above describes one embodiment of the present invention, but the present invention is not limited to the above and can, of course, be implemented in various other modifications within the scope of its gist.

10 Vehicle seat 12 Seat cushion 14 Seat back 18 Seat body 20 Cover member 22 Cushion pad member (pad member)
24 Back pad member (pad member)
26 Pad body 28 Covering material 30 Locking member 42B Excess length portion 48 Gap 50 Pad body locking portion 52 Covering material locking portion 56 Pressing portion 56B Bulging portion

Claims (4)

a pad body formed in a block shape and configured to support the body of a seated occupant;
a cover material that covers the pad body and has an excess length portion that can form a gap between the cover material and the pad body;
a biasing portion provided between the excess length portion and the pad body and biasing the excess length portion toward an opposite side to the pad body;
a locking member having a cover locking portion to which a part of the cover is locked and a pad main body locking portion to which the pad main body is locked;
the biasing portion is integrally formed with the locking member.
Pad material. The pad member according to claim 1, wherein the end of the urging portion opposite the cover material engaging portion and the pad main body engaging portion is a bulging portion that bulges out toward the cover material engaging portion and the pad main body engaging portion of the urging portion. a seat body having a seat cushion that supports the buttocks of a seated occupant from below the seat and a seat back that supports the back of the seated occupant from behind the seat;
a cover member attached to the seat body and covering a part of the seat body;
The pad member according to claim 1 or 2 , which constitutes a part of the seat cushion and the seat back;
Equipped with
The excess length portion is disposed opposite the cover member. a seat body having a seat cushion that supports the buttocks of a seated occupant from below the seat and a seat back that supports the back of the seated occupant from behind the seat;
a cover member attached to the seat body and covering a part of the seat body;
a pad member including: a pad body that constitutes a part of the seat cushion and the seat back, is formed in a block shape, and supports the body of a seated occupant; a skin material that covers the pad body and has an excess portion that can form a gap between the pad body and the skin material; and a biasing portion that is provided between the excess portion and the pad body and biases the excess portion toward the opposite side to the pad body;
Equipped with
The excess length portion is disposed opposite the cover member.