JP7096475B2 - Vehicle seat - Google Patents

Description

The present invention relates to a vehicle seat, and more particularly to a vehicle seat having a side support portion on the side of a back support portion that supports the back of a seated person.

A vehicle seat having a side support portion on the side of the back support portion that supports the back of the seated person is already known, and examples thereof include the seat described in Patent Document 1. In the sheet described in Patent Document 1, the side support portion (denoted as "seat back side portion" in Patent Document 1) is referred to as a resin base member (referred to as "seat back side portion main body" in Patent Document 1). , It is composed of a skin covering the skin (referred to as "skin material" in Patent Document 1).

JP-A-2015-137021

As for the epidermis constituting the lateral support portion, a plurality of epidermis pieces may be connected to form the epidermis. In such a configuration, when the epidermis is put on the base member, it is necessary to stretch the epidermis by pulling the portion of the epidermis to which the epidermis pieces are connected. At this time, if the skin is not properly stretched, the appearance of the lateral support portion may be affected.

Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle seat capable of appropriately stretching the skin at a lateral support portion.

According to the vehicle seat of the present invention, the subject has a back support portion that supports the back of the seated person and a lateral support portion that is located on the side of the back support portion, and the lateral support portion is provided. The portion includes a base member for defining the outer shape of the side support portion and a skin that is covered with the base member to form an outer surface of the side support portion, and the skin covers the skin. A plurality of skin pieces connected to each other for construction are provided, a groove portion into which the portion to which the skin pieces are joined is inserted is provided on the surface of the base member, and the skin is stretched on the back surface of the base member. Therefore, a plurality of claw portions on which the end portions of the skin are hooked are provided along the groove portions, and the amount of protrusion is larger than that of the claw portions. A convex portion is provided which is engaged with or in contact with a part of the claw portion, and the claw portion is a first claw portion whose tip portion extends from one end to the other end of the base member in the width direction of the vehicle seat. And a second claw portion having a tip portion extending from the other end of the base member toward one end in the width direction, and the convex portion includes the first claw portion and the first claw portion in the width direction. It is solved by being placed between the second claw portion .

In the vehicle seat of the present invention configured as described above, a portion of the epidermis in which the epidermis pieces are joined is inserted into the groove provided on the surface of the base member, and a plurality of claw portions provided on the back surface of the base member. The end of the epidermis is hooked on each of the skins and the epidermis is stretched. In such a configuration, since the end portion of the epidermis is hooked on the plurality of claw portions, it is possible to prevent the portion of the epidermis in which the epidermis pieces are joined from being excessively pulled. As a result, the portion where the epidermis pieces are joined is appropriately pulled, and as a result, the lateral support portion has a good appearance.

Further, in the above configuration, since the convex portion having a larger protrusion amount than the claw portion engages with or comes into contact with the vehicle body, it is possible to prevent the claw portion from coming into contact with the vehicle body and being damaged.

Further, in the above configuration, since the convex portion is provided between the first claw portion and the second claw portion in the width direction of the vehicle seat, each of the first claw portion and the second claw portion contacts the vehicle body. It is possible to prevent it from being damaged.

Further, in the vehicle seat of the present invention, the claw portion has a rear protruding portion and a tip protruding portion adjacent to the tip of the rear protruding portion and protruding in a direction intersecting the protruding direction of the rear protruding portion. And, it is good to have.
With the above configuration, it is possible to prevent the end portion of the epidermis hooked on the claw portion from coming off from the claw portion with a simpler configuration.

Further, in the vehicle seat of the present invention, the tip protruding portion may project toward the center position of the base member in the width direction of the vehicle seat.
In the above configuration, the end portion of the skin is pulled toward the center position of the base member in the width direction of the vehicle seat and hooked on the claw portion, while the tip protruding portion of the claw portion is the center position of the base portion. It protrudes toward. With such a configuration, it is possible to effectively prevent the end portion of the epidermis hooked on the claw portion from coming off the claw portion.

Further, in the vehicle seat of the present invention, the skin has an extension portion extending from a portion where the skin pieces are joined on the back side portion of the skin, and the extension portion is provided with respect to the base member. The epidermis pieces are pulled to the side opposite to the side where the joined portion is located and hooked on the claw portion, and the end portion of the epidermis is hooked on the extending portion of the claw portion. It is preferable that the claw portion is hooked on a portion closer to the tip of the claw portion than the portion where the claw portion is present.
In the above configuration, in the epidermis, the extending portion attached to the portion where the epidermis pieces are joined and the end portion of the epidermis are both hooked on the claw portion, and therefore, a portion for hooking each of these is provided separately. Compared with the case, it is possible to make the configuration simpler.

Further, in the vehicle seat of the present invention, the base member is provided with a slit hole, the extending portion is passed through the slit hole, and the skin piece is joined to the base member. In the width direction of the vehicle seat, the portion of the outer edge of the base member around which the end of the epidermis wraps around and the slit hole are pulled to the side opposite to the side where the portion is located. It is preferable that the claw portion is arranged between the two.
In the above configuration, the end portion and the extending portion of the epidermis approach the claw portion from opposite sides in the width direction of the vehicle seat and are hooked on the claw portion. With such a configuration, it is possible to suppress an excessive force from acting on the claw portion in one direction in the width direction of the vehicle seat.

Further, in the vehicle sheet of the present invention, the claw portion has a core portion of the claw portion and a vertically extending portion extending from the core portion along the vertical direction of the lateral support portion. It is good to do it.
In the above configuration, the rigidity of the claw portion can be improved by providing the claw portion with the vertically extending portion.

Further, in the vehicle seat of the present invention, an adjacent protrusion is provided on the back surface of the base member at a position adjacent to the claw portion, and the adjacent protrusion is for the vehicle. It may extend toward the outer edge of the base member along the width direction of the sheet.
In the above configuration, since the adjacent projecting portion is provided around the claw portion in the base member, it is possible to improve the rigidity around the claw portion in the base member.

Further, in the vehicle seat of the present invention, a plurality of the first claw portion and the second claw portion are provided along the vertical direction of the side support portion, respectively, and among the base members, the width direction is provided. A wood grain groove is formed at the end portion closer to the second claw portion than the first claw portion, and one end portion of the epidermis in the width direction is hooked on the plurality of first claw portions. The other end of the epidermis in the width direction is hooked on the plurality of second claws, and also enters the wood grain groove between the plurality of second claws in the vertical direction. It is good to be there.
In the above configuration, one end of the skin in the width direction of the vehicle seat is hooked on the plurality of first claws. Further, the other end of the epidermis is hooked on a plurality of second claws, and is grained into the grain groove of the base member between the plurality of second claws in the vertical direction of the side support portion. There is. With such a configuration, it is possible to effectively suppress the occurrence of wrinkles by appropriately stretching the central portion in the vertical direction of the epidermis where wrinkles are likely to occur with a relatively simple configuration.

According to the vehicle seat of the present invention, in the epidermis, the portion where the epidermis pieces are joined is suppressed from being excessively pulled, and the portion where the epidermis pieces are joined is appropriately pulled, resulting in lateral side. The support will have a good appearance.
Further, according to the vehicle seat of the present invention, it is possible to prevent the end portion of the epidermis hooked on the claw portion from coming off from the claw portion with a simpler configuration.
Further, according to the vehicle sheet of the present invention, it is possible to more effectively prevent the end portion of the epidermis hooked on the claw portion from coming off the claw portion.
Further, according to the vehicle seat of the present invention, as compared with the case where the extending portion attached to the portion where the epidermis pieces are joined and the portion for hooking each of the end portions of the epidermis are separately provided in the epidermis. , It is possible to have a simpler configuration.
Further, according to the vehicle seat of the present invention, it is possible to suppress an excessive force from acting on the claw portion in one direction in the width direction of the vehicle seat.
Further, according to the vehicle seat of the present invention, it is possible to improve the rigidity of the claw portion.
Further, according to the vehicle seat of the present invention, it is possible to improve the rigidity around the claw portion of the base member.
Further, according to the vehicle seat of the present invention, it is possible to prevent the claw portion from coming into contact with the vehicle body and being damaged.
Further, according to the vehicle seat of the present invention, it is possible to prevent each of the first claw portion and the second claw portion from coming into contact with the vehicle body and being damaged.
Further, according to the vehicle seat of the present invention, it is possible to appropriately stretch the central portion in the vertical direction of the epidermis where wrinkles are likely to occur and effectively suppress the occurrence of wrinkles with a relatively simple configuration. ..

It is a perspective view of the vehicle seat which concerns on one Embodiment of this invention. It is a figure which shows the component of a side support part. It is an external view of a side support part. It is a figure which shows the HH cross section of FIG. It is a figure which shows the back side of the epidermis. It is a figure when the base member is seen from the front side. It is a figure when the base member is seen from the back side. It is a figure when the back side part of a base member is seen from diagonally below. It is a figure which enlarges and shows the upper part of the back side part of a base member. It is a figure which shows the II cross section of FIG. It is a figure which shows the JJ cross section of FIG. It is explanatory drawing of the structure for stretching the epidermis. It is the figure which looked at the extension part hooked on the claw part and the end part of the epidermis from the side. It is a figure which shows the base member which concerns on the modification.

Hereinafter, a configuration example of the vehicle seat according to the embodiment of the present invention (the present embodiment) will be described. In the following, in the present embodiment, a seat mounted on a vehicle (hereinafter referred to as a seat S) will be described as an example of a vehicle seat. However, the present invention is also applicable to vehicles other than vehicles, for example, vehicle seats mounted on ships and aircraft.

Further, in the following description, the "front-rear direction" is a direction corresponding to the front-rear direction of the seat S, and coincides with the traveling direction of the vehicle on which the seat S is mounted. Further, the "seat width direction" is the width direction (horizontal width direction) of the seat S, and is the left-right direction of the seat S when the seat S is viewed from the front. Further, the "vertical direction" is the vertical direction of the seat back 1 of the seat S, and is the direction corresponding to the vertical direction of the side support portion 4 forming the side end portion of the seat back 1.
Further, the "outside" in the seat width direction corresponds to one end side in the seat width direction, and specifically means a side closer to the door of the vehicle. Further, the "inside" in the seat width direction corresponds to the other end side in the seat width direction and means the side closer to the center in the left-right direction of the vehicle.

In the following description, the positions of the parts of the seat S will be described with reference to the seated person (occupant of the vehicle) seated on the seat S, unless otherwise specified.

<< Basic configuration of seat S >>
The seat S is used as a rear seat of a vehicle and has a seat back 1 and a seat cushion 2 as shown in FIG. FIG. 1 is a perspective view of the sheet S. The seat back 1 is a portion that supports the upper body of the seated person, and the seat cushion 2 is a portion on which the buttocks and thighs of the occupant rest. The seat S shown in FIG. 1 is a seat for two people, but is not limited to this, and may be a seat for one person, or a seat for three or more people can be seated. It may be a sheet.

As shown in FIG. 1, the seat back 1 has a back support portion 3 and a side support portion 4. The back support portion 3 is a main body portion of the seat back 1, and is provided at the center portion of the seat back 1 in the seat width direction to support the back of the seated person from the rear. The side support portion 4 is located on the side of the back support portion 3, and specifically, is arranged between the back support portion 3 and the vehicle door (not shown) in the seat width direction. The front surface of the lateral support portion 4 is located beside the seated person and supports the portion extending from the shoulder to the lumbar region of the seated person from the side. Further, as shown in FIG. 1, the front surface of the side support portion 4 is located in front of the front surface of the back support portion 3, and the front surface of the side support portion 4 faces outward in the seat width direction. It is tilted so that it is located forward.

The side support portion 4 is fixed to the vehicle body. Specifically, a fastening portion (not shown) is provided in a portion of the vehicle body located behind the side support portion 4, and the side support portion 4 is fastened to the vehicle body by this fastening portion. Further, the lower end portion of the side support portion 4 (strictly speaking, the lower end portion of the base member 10) is bolted to the vehicle body floor.

<< Configuration of side support portion 4 >>
Explaining the side support portion 4, as shown in FIG. 2, the side support portion 4 is configured by covering the base member 10 forming the skeleton from the front with the skin 30. The side support portion 4 configured in this way has the appearance shown in FIG. 3, and as shown in the figure, extends sufficiently long in the vertical direction and is relatively wide in the seat width direction. It has become.
Note that FIG. 2 is a diagram showing components of the side support portion 4, and FIG. 3 is an external view of the side support portion 4.

The base member 10 is a member for defining the outer shape of the side support portion 4, and is made of a resin molded product in the present embodiment. However, the base member 10 may be formed of a metal member, or more specifically, may be formed by processing and molding a metal plate.

The base member 10 is formed into a substantially plate shape, and has a square shape like the tip of a knife when viewed from the front. Further, the front surface of the base member 10 is substantially flat. The structure of the base member 10 will be described in detail later.
In the following description, in the thickness direction of the base member 10, the side closer to the seated person's body when the seated person is seated on the seat S is referred to as "front side", and is referred to from the seated person's body. The distant side is called the "back side".

As shown in FIG. 4, the skin 30 is a member that covers the front side of the base member 10 and forms the outer surface of the side support portion 4. FIG. 4 is a diagram showing a cross section of the side support portion 4, specifically, a cross section of HH in FIG.

The skin 30 is made of fabric, natural leather or artificial leather, or a laminate thereof. The epidermis 30 has a slight thickness, and its surface gives a soft touch when the seated person's body touches it.
In the following description, the side closer to the seated person's body (in other words, the exposed side) when the seated person is seated on the seat S in the thickness direction of the skin 30 is referred to as "front side". The side farther from the seated person's body (in other words, the side facing the base member 10) is referred to as the "back side".

In the present embodiment, the epidermis 30 is configured by connecting a plurality of epidermis pieces to each other. Specifically, the skin 30 is configured by sewing two skin pieces divided in the seat width direction. That is, as shown in FIG. 4, a portion in which the epidermis pieces are joined (hereinafter, the joint portion 40) is formed in the central portion of the skin 30 in the sheet width direction. In the joint portion 40, the end portions of the skin pieces in the sheet width direction are folded back to the back side, and the ends of the folded skin pieces are joined together by sewing.

In the following, of the two epidermis pieces constituting the epidermis 30, the one located on the outer side (one end side) in the seat width direction is referred to as the outer epidermis piece 33, and the one located on the inner side (the other end side) is on the inner side. It will be called the epidermis piece 34. Here, the outer epidermis piece 33 corresponds to the first epidermis piece, and the inner epidermis piece 34 corresponds to the second epidermis piece.
Further, in the present embodiment, the epidermis 30 is configured by connecting two epidermis pieces to each other, but the present invention is not limited to this, and the epidermis 30 is formed by connecting three or more epidermis pieces to each other. It may be configured.

The skin 30 is fastened to the base member 10 in a state of being covered with the base member 10. More specifically, as shown in FIG. 4, the outer end portion of the skin 30 in the seat width direction (hereinafter referred to as the outer end portion 31) is a portion of the base member 10 located on the outer side in the seat width direction (hereinafter referred to as the outer end portion 31). , Is hung on the outer base portion 11).
The outer end portion 31 is composed of the outer end portion of the outer skin piece 33 in the sheet width direction. Then, as shown in FIG. 4, the outer end portion 31 is bent along the portion of the outer edge of the base member 10 located on the outer side in the seat width direction, and wraps around from the front side to the back side of the base member 10. I'm out.

As shown in FIG. 4, the inner end portion of the skin 30 in the seat width direction (hereinafter referred to as the inner end portion 32) is located on the inner side of the base member 10 in the seat width direction (hereinafter referred to as the inner base portion 12). Along with being hooked, it is grained into the grain groove 26 provided in the inner base portion 12.
The inner end portion 32 is composed of the inner end portion of the inner skin piece 34 in the sheet width direction. Then, as shown in FIG. 4, the inner end portion 32 is bent along the portion of the outer edge of the base member 10 located inside in the seat width direction.

Of the skin 30, the joint portion 40 is pulled and suspended on the back side of the base member 10 (in other words, the side opposite to the side where the joint portion 40 is located with respect to the base member 10).

<< Configuration of the skin 30 for fastening the skin 30 to the base member 10 >>
Hereinafter, with reference to FIGS. 4 and 5 regarding the mechanism provided in the skin 30 for fastening each part of the skin 30 (specifically, the outer end portion 31, the inner end portion 32 and the connecting portion 40) to the base member 10. I will explain while doing. FIG. 5 is a diagram showing the back side of the epidermis 30.

In the outer end portion 31 of the skin 30, a notch-shaped hole formed for inserting a protrusion (strictly speaking, a claw portion 16 described later) protruding from the back surface of the outer base portion 11 of the base member 10 (hereinafter referred to as a hook). A stop 36) is formed. As shown in FIG. 5, a plurality of locking holes 36 are provided with a space between the locking holes 36 along the vertical direction.

Similarly, a locking hole 36 is provided at the inner end portion 32 of the skin 30. As shown in FIG. 5, two locking holes 36 are provided at the inner end portion 32 at positions separated in the vertical direction. Further, as shown in FIG. 5, a trim cord 37 extending in the vertical direction is attached to a portion of the inner end portion 32 located between the locking holes 36 in the vertical direction. The trim cord 37 is a portion that penetrates into the wood grain groove 26 provided in the inner base portion 12 of the base member 10 and is grained.

A band 35 as an extending portion is attached to the connecting portion 40 of the skin 30. The band 35 is a strip-shaped belt extending from the joint portion 40 on the back side portion of the skin 30. When the skin 30 is fastened to the base member 10, the band 35 is pulled and suspended on the back side of the base member 10 (in other words, the side opposite to the side where the connecting portion 40 is located with respect to the base member 10). Is done.

Then, in a state where the band 35 is pulled, the free end portion 35b of the band 35 is hooked on a protrusion (strictly speaking, a claw portion 16 described later) protruding from the back surface of the outer base portion 11 of the base member 10. .. The free end portion 35b is an end portion of the band body 35 located on the opposite side of the base portion 35a attached to the connecting portion 40, and is one short side portion of the band body 35 having a rectangular shape. Is. Further, the free end portion 35b is formed with a hole for inserting the protrusion of the base member 10 (hereinafter referred to as a hooking hole 35c).

As shown in FIG. 5, a plurality of strips 35 are provided along the joint portion 40 with intervals between the strips 35 (five in the case shown in FIG. 5). Further, the band 35 of the present embodiment is made of a material having lower extensibility than the epidermis piece (that is, the outer epidermis piece 33 and the inner epidermis piece 34) constituting the epidermis 30, and is made of, for example, a nylon belt or the like. It is configured.

Further, in the present embodiment, each band 35 is co-sewn with each epidermis piece (that is, the outer epidermis piece 33 and the inner epidermis piece 34) at the joint portion 40. Specifically, the base portion 35a of each band 35 is sewn to each skin piece. Further, as shown in FIG. 4, the base portion 35a is attached to the connecting portion 40 in a state of being in contact with the outer skin piece 33.

<< About the structure of the base member 10 >>
The structure of the base member 10 will be described with reference to FIGS. 4 and 6 to 12. FIG. 6 is a view when the base member 10 is viewed from the front side. FIG. 7 is a view when the base member 10 is viewed from the back side. FIG. 8 is a view when the back side portion of the base member 10 is viewed from diagonally below. FIG. 9 is an enlarged view showing an upper portion of the back side portion of the base member 10. FIG. 10 is a diagram showing an I-I cross section of FIG. FIG. 11 is a diagram showing a JJ cross section of FIG.

As described above, the base member 10 is a resin molded product, and has the appearance shown in FIGS. 6 and 7. At the lower end of the base member 10, a mounting portion 28 extending downward in a tongue shape is provided. A bolt hole is provided at the tip end portion (lower end portion) of the mounting portion 28, and the mounting portion 28 is fixed to the vehicle body floor by a fastening bolt (not shown) inserted into the bolt hole.

The base member 10 is largely divided into two portions in the seat width direction, and specifically, has an outer base portion 11 located outside in the seat width direction and an inner base portion 12 located inside in the seat width direction. .. The outer base portion 11 is a portion closer to the outer skin piece 33 among the outer skin piece 33 and the inner skin piece 34 constituting the skin 30 in a state where the skin 30 is fastened to the base member 10. The inner base portion 12 is a portion closer to the inner epidermis piece 34 of the epidermis 30 in a state where the epidermis 30 is fastened to the base member 10.

Further, as shown in FIG. 6, the surface of the base member 10 is provided with an accommodating groove portion 13 formed by being recessed rearward. The accommodating groove portion 13 is a groove portion formed from the upper end to the lower end of the base member 10. Then, in a state where the skin 30 is covered with the base member 10 and fastened, as shown in FIG. 4, the connecting portion 40 of the skin 30 is accommodated in the accommodating groove portion 13. That is, when the joint portion 40 is suspended from the base member 10, the joint portion 40 enters the accommodating groove portion 13.

In the base member 10, the accommodating groove portion 13 forms a boundary between the outer base portion 11 and the inner base portion 12, and the outer base portion 11 is located outside the accommodating groove portion 13 in the seat width direction, and the accommodating groove portion 13 is provided. The inner base portion 12 is located inside in the seat width direction. Further, as shown in FIG. 6, on the surface of the inner base portion 12, a plurality of relatively short rectangular holes (hereinafter, rectangular hole group 14) arranged in the vertical direction are provided at the side positions of the accommodating groove portion 13. ing. Each rectangular hole in the rectangular hole group 14 is formed to take out the base member 10 from the mold when the base member 10 is resin-molded. As shown in FIG. 11, the portion of the inner base portion 12 located between the rectangular hole group 14 and the accommodating groove portion 13 in the seat width direction has a thick portion 15 that is thicker than the periphery thereof. ing.

As shown in FIGS. 8 and 9, the back surface of the base member 10 is provided with a claw portion 16 projecting rearward. The claw portion 16 is a portion on which the outer end portion 31 and the inner end portion 32 of the skin 30 are hooked when the skin 30 is fastened to the base member 10. When the outer end portion 31 and the inner end portion 32 are hooked on the claw portion 16, the skin 30 covered with the base member 10 is stretched.

Further, in the present embodiment, a plurality of claw portions 16 are provided on the back surface of the base member 10, and more specifically, the claw portions 16 are vertically oriented on the back surfaces of the outer base portion 11 and the inner base portion 12. A plurality of them are provided along the line. Hereinafter, the details of the claw portion 16 will be described.

The plurality of claw portions 16 (hereinafter referred to as the first claw portion 16A) provided on the back surface of the outer base portion 11 are located at the outer end portion of the outer base portion 11 in the seat width direction, and are arranged along the accommodating groove portion 13. ing. In the case shown in FIG. 8, six first claw portions 16A are lined up at intervals. As shown in FIG. 9, each first claw portion 16A is formed so that its tip portion extends from the outer end to the inner end of the base member 10 in the sheet width direction.

Explaining the configuration of the first claw portion 16A with reference to FIG. 9, the claw portion 16 has a core portion 17 forming the main body portion thereof. As shown in FIG. 9, the core portion 17 has a rear protruding portion 17a extending rearward from the back surface of the base member 10 and a tip protruding portion 17b adjacent to the tip of the rear protruding portion 17a. .. As described above, the tip protruding portion 17b of the first claw portion 16A is directed from the outer end to the inner end of the base member 10 in the seat width direction (in other words, the direction intersecting the protruding direction of the rear protruding portion 17a). It is extended to. That is, the tip protruding portion 17b of the first claw portion 16A protrudes toward the center position of the base member 10 in the seat width direction.

Further, in the present embodiment, as shown in FIG. 9, in the seat width direction, the first claw portion 16A is provided between the portion of the base member 10 facing the outer end portion 31 of the skin 30 and the above-mentioned accommodating groove portion 13. Have been placed. Here, the portion facing the outer end portion 31 means that, on the back surface of the base member 10, the outer end portion 31 is along the outer edge of the base member 10 (strictly speaking, the outer end portion in the sheet width direction of the outer edge). It is a portion facing the outer end portion 31 by being folded back.

Further, each end surface of the core portion 17 in the vertical direction is provided with a vertical extension portion 18 extending along the vertical direction from each end surface. The vertical extension portion 18 is provided to reinforce the core portion 17 of the first claw portion 16A. Further, as shown in FIG. 9, the vertical extending portion 18 is bent in an L shape, and the portion corresponding to one side thereof extends from the rear protruding portion 17a and corresponds to the other side. Extends from the tip protruding portion 17b.

Further, an adjacent protruding portion 19 adjacent to the rear protruding portion 17a is provided at the root portion of the rear protruding portion 17a of the core portion 17. The adjacent projecting portion 19 is provided for reinforcing the first claw portion 16A, and projects rearward at a position adjacent to the first claw portion 16A. Further, as shown in FIG. 9, the adjacent projecting portion 19 extends toward the outer edge of the base member 10 (strictly speaking, the outer end portion of the outer edge in the seat width direction) along the seat width direction.

As shown in FIG. 8, the plurality of claw portions 16 (hereinafter referred to as the second claw portion 16B) provided on the back surface of the inner base portion 12 are arranged at positions separated from each other in the vertical direction. The second claw portion 16B is similar to the first claw portion 16A in terms of the basic configuration, and has a core portion 17 and a vertically extending portion 18 extending from the core portion 17. Further, an adjacent projecting portion 19 projects rearward at a position adjacent to the core portion 17 of the second claw portion 16B.

As shown in FIG. 8, the tip of the second claw portion 16B (strictly speaking, the tip protruding portion 17b of the core portion 17) extends from the inner end to the outer end of the base member 10 in the sheet width direction. It is formed to be put out. That is, the tip protruding portion 17b of the second claw portion 16B protrudes toward the center position of the base member 10 in the seat width direction, similarly to the tip protruding portion 17b of the first claw portion 16A.

Returning to the description of the configuration of the base member 10, a plurality of protrusions for attaching the side support portion 4 to the vehicle body are formed on the back surface of the base member 10. Specifically, from the back surface of the base member 10, the first fastening portion 21, the second fastening portion 22, the first contact portion 23, and the second contact portion 24 are respectively directed toward the rear. It stands out.

The first fastening portion 21 is a socket-type protrusion provided at the upper end position of the inner base portion 12 of the base member 10, and is engaged with the insertion portion by inserting an insertion portion (not shown) attached to the vehicle body. It is a structure that can be matched. That is, the first fastening portion 21 is engaged with a part of the vehicle body in a state where the side support portion 4 is mounted on the vehicle body.

The second fastening portion 22 corresponds to a convex portion and is a plug-type protrusion provided at a position slightly lower than the first fastening portion 21 in the inner base portion 12, and is a receiving portion (not shown) attached to the vehicle body. It is configured so that it can be engaged with the receiving portion by being inserted into. That is, the second fastening portion 22 is engaged with a part of the vehicle body in a state where the side support portion 4 is mounted on the vehicle body.
Further, the amount of protrusion of the second fastening portion 22 to the rear is larger than the amount of protrusion of the first claw portion 16A as shown in FIG. 9, and is larger than the amount of protrusion of the second claw portion 16B. It has become.

The first contact portion 23 and the second contact portion 24 correspond to a convex portion and are substantially semicircular tubular bodies. The first contact portion 23 is located at a position lower than the second fastening portion 22 on the inner base portion 12, and is provided at a position beside the accommodating groove portion 13. The second contact portion 24 is located at the lower end portion of the inner base portion 12 and is provided at a side position of the accommodating groove portion 13. Each of the first contact portion 23 and the second contact portion 24 abuts on a part of the vehicle body to position the side support portion 4 when the side support portion 4 is mounted on the vehicle body. There is.
Further, the amount of protrusion of the first contact portion 23 to the rear is larger than the amount of protrusion of the first claw portion 16A as shown in FIG. 9, and is larger than the amount of protrusion of the second claw portion 16B. It's getting bigger. Similarly, the amount of protrusion of the second contact portion 24 to the rear is larger than the amount of protrusion of each of the first claw portion 16A and the second claw portion 16B.

In this embodiment, the second fastening portion 22, the first contact portion 23, and the second contact portion 24 are the first claw portion 16A and the second claw portion 16B in the sheet width direction as shown in FIG. Strictly speaking, it is arranged between the first claw portion 16A located on the outermost side in the sheet width direction and the second claw portion 16B located on the innermost side.

As shown in FIGS. 6, 7, and 8, rectangular slit holes 25 are formed in the bottom portion 13a of the accommodating groove portion 13 of the base member 10. The slit hole 25 penetrates the bottom portion 13a of the accommodating groove portion 13, and is a hole through which the band 35 is passed when the skin 30 is put on the base member 10 and the connecting portion 40 is suspended. That is, the band 35 is passed through the slit hole 25 and pulled to the back side of the base member 10 to be suspended.

In the present embodiment, a plurality of slit holes 25 are provided along the accommodating groove portion 13 with intervals between the slit holes 25, and more specifically, the same number (that is, five) as the band 35 is provided. ing. That is, in the present embodiment, the base member 10 is provided with one slit hole 25 for each band 35, and each band 35 has a corresponding slit hole among the plurality of slit holes 25. It will be passed through 25.

As shown in FIG. 4, each slit hole 25 is formed so that the opening 25a on the rear end side faces the outside (vehicle door side) in the seat width direction. Therefore, when the band 35 is passed through the slit hole 25, the band 35 is passed so that the free end portion 35b of the band 35 faces outward in the sheet width direction.

Further, in the present embodiment, as shown in FIG. 7, each slit hole 25 is described above as the first claw portion 16A (strictly speaking, the first claw portion 16A located on the outermost side in the seat width direction) in the seat width direction. It is arranged between the convex portion (specifically, the second fastening portion 22) of the above.

As shown in FIGS. 7 and 8, of the back surface of the base member 10, a wood grain groove 26 is provided at the inner end in the sheet width direction. The wood grain groove 26 is a groove into which the trim cord 37 attached to the inner end portion 32 of the skin 30 is inserted (wood grained) when the skin 30 is fastened to the base member 10.

The wood grain groove 26 is provided in the inner base portion 12 of the base member 10. More specifically, as shown in FIG. 4, the inner base portion 12 is bent in an L shape so that the inner end portion in the seat width direction extends rearward. The wood grain groove 26 is formed on the rear end surface (that is, the back surface) of the inner end portion of the inner base portion 12 so as to extend long in the vertical direction. The inner end portion of the inner base portion 12 provided with the wood grain groove 26 in the seat width direction is located at the end portion of the base member 10 that is closer to the second claw portion 16B than the first claw portion 16A in the seat width direction. Equivalent to.

Further, as shown in FIGS. 7 and 8, the wood grain groove 26 is arranged between two second claw portions 16B provided at positions separated from each other in the vertical direction.
Further, a part of the inner wall surface of the wood grain groove 26 is raised as shown in FIG. 10 to form a retaining bead 27. By forming the retaining bead 27, it is possible to prevent the trim cord 37 embedded in the grain groove 26 from coming out of the grain groove 26.

<< How to fasten the skin 30 to the base member 10 >>
Next, how to fasten the skin 30 to the base member 10 will be described with reference to FIGS. 4, 12, and 13. FIG. 12 is an explanatory diagram of a configuration for stretching the skin 30 over the base member 10. FIG. 13 is a side view of the band 35 hooked on the first claw portion 16A and the outer end portion 31 of the epidermis 30.

In fastening the skin 30 to the base member 10, the skin 30 is brought close to the base member 10 from the front of the base member 10, and the skin 30 is put on the surface (front surface) of the base member 10. At this time, as shown in FIG. 4, the connecting portion 40 of the skin 30 enters the accommodation groove portion 13.

More specifically, each of the plurality of strips 35 sewn to the joint portion 40 is passed through the slit hole 25 formed in the bottom portion 13a of the accommodating groove portion 13 and pulled to the back side of the base member 10. That is, in the present embodiment, when the skin 30 is fastened to the base member 10, the skin 30 is put on the base member 10, and in such a state, each band 35 is passed through the slit hole 25, and the back side of the base member 10 ( In other words, it is pulled to the side opposite to the side where the connecting portion 40 is located with respect to the base member 10.

In the state where the skin 30 is covered with the base member 10, as shown in FIG. 4, the base portion 35a of the band 35 is accommodated (arranged) in the accommodating groove portion 13 together with the connecting portion 40.
Further, the opening 25a of the slit hole 25 (strictly speaking, the opening 25a located on the back side of the base member 10) faces the outer side in the sheet width direction as shown in FIG. The free end portion 35b of the band body 35 protrudes to the outside of the slit hole 25 through the opening 25a.

Further, in the present embodiment, a plurality of strips 35 are attached to the joint portion 40, and the base member 10 is formed with the same number of slit holes 25 as the strips 35. A corresponding band 35 is passed through each slit hole 25.

Further, in a state where the skin 30 is covered with the base member 10, the portion where the band 35 is attached on the back side portion of the skin 30 and the portion where the slit hole 25 is provided on the base member 10 overlap each other. They are lined up like this. To explain it in an easy-to-understand manner, when the skin 30 is covered with the base member 10, as shown in FIG. 4, the base portion 35a of the band 35 attached to the connecting portion 40 has a slit hole through which the band 35 passes. It is arranged at a position adjacent to 25. With such a positional relationship, the length of each band 35 required for passing each band 35 through the slit hole 25 can be further shortened.

After the free end portion 35b of the strip 35 exits the slit hole 25 through the opening 25a of the slit hole 25, the strip 35 remains pulled to the back side (that is, rearward) of the base member 10. As shown in 4, it is bent into an L shape at an intermediate portion (specifically, a portion of the bottom portion 13a of the accommodating groove portion 13 facing the outer edge of the opening 25a). As a result, the free end portion 35b of the band body 35 faces outward in the seat width direction.

On the other hand, of the base member 10, the first claw portion 16A is provided on the back side of the outer base portion 11 located on the outer side in the seat width direction. Then, as shown in FIGS. 4 and 12, the free end portion 35b of the band body 35 is hooked on the tip protruding portion 17b of the first claw portion 16A on the back side of the base member 10. Specifically, the free end portion 35b of the band 35 is formed by inserting the core portion 17 and the vertical extension portion 18 of the first claw portion 16A into the hooking hole 35c formed in the free end portion 35b. It comes to engage with the first claw portion 16A.
The first claw portion 16A is provided on the outer end portion (one end portion of the base member 10) in the seat width direction on the back surface of the outer base portion 11. That is, in the present embodiment, the free end portion 35b of the band body 35 is hooked on the outer end portion of the outer base portion 11 in the sheet width direction.
Further, the opening 25a of the slit hole 25 through which the base portion 35a of the band 35 passes faces the outside in the seat width direction, that is, the side on which the first claw portion 16A is located. With such a configuration, it becomes possible to more easily fasten the base portion 35a of the band body 35 to the first claw portion 16A.

Then, when all the band bodies 35 engage with the first claw portion 16A, the connecting portion 40 to which the base portion 35a of the band body 35 is attached enters the accommodating groove portion 13 together with the base portion 35a of the band body 35 and is suspended. It will be like.

After the hanging of the connecting portion 40 is completed, the outer end portion 31 of the skin 30 is fastened to the outer end portion of the outer base portion 11 in the sheet width direction. More specifically, by bending the outer end portion 31 of the skin 30 along the portion of the outer edge of the outer base portion 11 located at the outer end in the seat width direction, the outer end portion 31 is made of the outer base portion 11. Let it wrap around from the front side to the back side. Then, as shown in FIG. 12, the outer end portion 31 that wraps around the back side of the outer base portion 11 is hooked on the first claw portion 16A. Specifically, the core portion 17 and the vertical extension portion 18 of the first claw portion 16A are inserted into a plurality of locking holes 36 formed at the outer end portion 31 at intervals in the vertical direction. As a result, of the outer end portion 31 of the skin 30, the portion that wraps around the back side of the outer base portion 11 is hooked on the first claw portion 16A and fastened to the outer end portion of the outer base portion 11 in the sheet width direction.

In this embodiment, the outer end portion 31 of the skin 30 is formed with the same number of locking holes 36 as the first claw portion 16A. A corresponding first claw portion 16A is inserted into each locking hole 36 one by one.

As described above, the band 35 attached to the joint portion 40 and the outer end portion 31 of the skin 30 that wraps around the back side of the base member 10 are hooked on the first claw portion 16A. As shown in FIG. 13, the outer end portion 31 of the skin 30 is the tip of the first claw portion 16A (strictly speaking, the core portion 17) rather than the portion of the first claw portion 16A on which the band 35 is hooked. It is hung on a portion close to the tip protruding portion 17b).

Further, in a state where both the band body 35 and the outer end portion 31 are hung on the first claw portion 16A, each of the band body 35 and the outer end portion 31 faces each other with respect to the first claw portion 16A. Is exerting the power of. Specifically, as shown in FIG. 4, in the seat width direction, a portion of the outer edge of the base member 10 around which the outer end portion 31 of the skin 30 wraps around, and a slit hole 25 through which the band 35 passes. The first claw portion 16A is arranged between the two.

Due to the above positional relationship, the band 35 approaches the first claw portion 16A from a position inside the seat width direction with respect to the first claw portion 16A and is hooked on the first claw portion 16A. As a result, the strip 35 acts on the first claw portion 16A with a tensile load in the direction indicated by the arrow f1 in FIG. On the other hand, the outer end portion 31 of the skin 30 approaches the first claw portion 16A from a position outside the seat width direction of the first claw portion 16A and is hooked on the first claw portion 16A. As a result, the outer end portion 31 exerts a tensile load on the first claw portion 16A in the direction indicated by the arrow f2 in FIG. Here, the above two tensile loads are forces in opposite directions to each other. This makes it possible to prevent the tensile load acting on the first claw portion 16A from being excessively concentrated in one direction.

As described above, the outer end portion 31 of the skin 30 is fastened to the outer end portion of the outer base portion 11 in the seat width direction.
On the other hand, the inner end portion 32 of the skin 30 is fastened to the inner end portion in the seat width direction of the inner base portion 12 of the base member 10. More specifically, the inner end portion 32 of the skin 30 is bent along the outer edge of the inner base portion 12 located at the inner end in the seat width direction. Further, a predetermined portion of the inner end portion 32 (specifically, a portion in which the locking hole 36 is locked) is made to wrap around from the front side to the back side of the inner base portion 12.

As described above, two second claw portions 16B are provided on the back side of the inner base portion 12 at positions separated from each other in the vertical direction. Then, as shown in FIG. 4, the inner end portion 32 that wraps around the back side of the inner base portion 12 is hooked on each of the upper and lower second claw portions 16B. Specifically, the core portion 17 and the vertical extension portion 18 of the corresponding second claw portion 16B are inserted into each of the two locking holes 36 provided at the inner end portions 32 at positions separated from each other in the vertical direction. .. As a result, of the inner end portion 32 of the skin 30, the portion that wraps around the back side of the inner base portion 12 is hooked on the second claw portion 16B.

Further, a trim cord 37 is attached to a portion of the inner end portion 32 located between the upper and lower second claw portions 16B in the vertical direction. The trim cord 37 enters (is inserted into) the wood grain groove 26 formed at the inner end portion in the sheet width direction on the back surface of the inner base portion 12. As described above, in the present embodiment, the inner end portion 32 of the skin 30 is hooked on the two upper and lower second claw portions 16B, and is grained into the wood grain groove 26 between the second claw portions 16B in the vertical direction.
By the procedure described above, each part of the skin 30 (specifically, the outer end portion 31, the inner end portion 32 and the connecting portion 40) is fastened to the base member 10. Then, by fastening the skin 30 to the base member 10, the side support portion 4 according to the present embodiment is configured.

<< Other Embodiments >>
The vehicle seat of the present invention has been described above with one specific embodiment, but the above-described embodiment is for facilitating the understanding of the present invention and limits the present invention. It's not something to do. That is, the present invention can be modified and improved without departing from the spirit thereof, and it goes without saying that the present invention includes an equivalent thereof.

Further, the configuration of each part of the sheet S is merely an example, and as long as the effect of the present invention (appropriately stretching the skin 30) is exhibited, the shape may be different from that of the above embodiment. .. For example, in the above embodiment, the side support portion 4 is configured by the skin 30 directly covering the base member 10. That is, in the above embodiment, as shown in FIG. 6, the surface of the base member 10 on the front side (front side) is a flat surface, and the skin 30 is arranged at a position immediately before the flat surface, but the present invention is limited to this. It is not something that will be done. As shown in FIG. 14, a base member 100 having a fitting recess 101 on which a pad material (not shown) is fitted is used, and the base member 100 in a state where the pad material is fitted into the fitting recess 101 is used. The side support portion 4 may be formed by covering the surface with the skin 30. FIG. 14 is a perspective view showing the base member 100 according to the modified example.
The base member 100 according to the modified example has substantially the same structure as the base member 10 shown in FIG. 6 according to the above embodiment in a state where the pad material is fitted in the fitting recess 101. ing.

1 Seat back 2 Seat cushion 3 Back support 4 Side support 10 Base member 11 Outer base 12 Inner base 13 Storage groove (groove)
13a Bottom 14 Rectangular hole group 15 Thick part 16 Claw part 16A First claw part 16B Second claw part 17 Core part 17a Rear protruding part 17b Tip protruding part 18 Vertical extension part 19 Adjacent protruding part 20 Outer edge outer part 21 No. 1 Fastening part 22 2nd fastening part (convex part)
23 First contact part (convex part)
24 Second contact part (convex part)
25 Slit hole 25a Opening 26 Wood grain groove 27 Retaining bead 28 Mounting part 30 Skin 31 Outer end (one end)
32 Inner end (other end)
33 Outer epidermis piece (first epidermis piece)
34 Inner epidermis piece (second epidermis piece)
35 band (extended part)
35a Base 35b Free end 35c Hooking hole 36 Locking hole 37 Trim cord 40 Connecting part (the part where the skin pieces are joined)
100 Base member 101 Fitting recess S seat (vehicle seat)

Claims (8)

It has a back support portion that supports the back of the seated person and a lateral support portion that is located on the side of the back support portion.
The side support portion includes a base member for defining the outer shape of the side support portion, and a skin that is covered with the base member and forms an outer surface of the side support portion.
The epidermis comprises a plurality of pieces of epidermis spliced together to form the epidermis.
On the surface of the base member, a groove portion into which the portion where the skin pieces are joined is inserted is provided.
On the back surface of the base member, a plurality of claw portions on which the end portion of the epidermis is hooked for stretching the epidermis are provided along the groove portion, and the amount of protrusion is larger than that of the claw portion, and the lateral side thereof. A convex portion is provided that is engaged with or in contact with a part of the vehicle body while the support portion is mounted on the vehicle body.
The claw portion has a first claw portion having a tip extending from one end of the base member toward the other end in the width direction of the vehicle seat, and a tip portion extending from the other end of the base member in the width direction. Has a second claw that extends toward one end,
A vehicle seat characterized in that the convex portion is arranged between the first claw portion and the second claw portion in the width direction . The claw portion is characterized by having a rear protruding portion protruding rearward and a tip protruding portion adjacent to the tip of the rear protruding portion and protruding in a direction intersecting the protruding direction of the rear protruding portion. The vehicle seat according to item 1. The vehicle seat according to claim 2, wherein the tip protruding portion protrudes toward the center position of the base member in the width direction of the vehicle seat. The epidermis comprises an extension portion extending from a portion of the back side portion of the epidermis to which the epidermis pieces are joined.
The extending portion is pulled to the side opposite to the side where the portion where the epidermis pieces are joined to the base member is located, and is hooked on the claw portion.
Any of claims 1 to 3, wherein the end portion of the epidermis is hooked on a portion of the claw portion that is closer to the tip of the claw portion than the portion on which the extending portion is hooked. The vehicle seat described in item 1. The base member is provided with a slit hole, and the base member is provided with a slit hole.
The extending portion is passed through the slit hole and pulled to the side opposite to the side where the portion where the skin pieces are joined to the base member is located.
In the width direction of the vehicle seat, the claw portion is arranged between the portion of the outer edge of the base member around which the end portion of the epidermis wraps around and the slit hole. The vehicle seat according to claim 4. Claims 1 to 5 include the claw portion having a core portion of the claw portion and a vertically extending portion extending from the core portion along the vertical direction of the lateral support portion. The vehicle seat according to any one of the above. On the back surface of the base member, an adjacent projecting portion projecting at a position adjacent to the claw portion is provided.
The vehicle seat according to any one of claims 1 to 6, wherein the adjacent protrusions extend toward the outer edge of the base member along the width direction of the vehicle seat. A plurality of the first claw portion and the second claw portion are provided along the vertical direction of the side support portion, respectively.
Of the base member, a wood grain groove is formed at an end portion closer to the second claw portion than the first claw portion in the width direction.
One end of the epidermis in the width direction is hooked on the plurality of first claws.
The other end of the epidermis in the width direction is hooked on the plurality of second claws and is inserted into the wood grain groove between the plurality of second claws in the vertical direction. The vehicle seat according to any one of claims 1 to 7 .

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