JP2018126435A - Vehicle seat and its manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To more reliably apply proper tension to a central portion in the sheet width direction of a seat cover by using the force when installing a suspending member installed in a seat cover in a groove of a seat pad.SOLUTION: A seat cover 4S has a sewing part 30 formed by that adjacent ends of a main skin piece SP1 for covering up a top plate main part 10 and a side skin piece SP2 for covering up a top plate side part 11 are stacked in the inside-out shape and sewn up as a portion of the seat cover 4S. A suspending member 40 installed in the main skin piece side of the sewing part 30 is installed to a groove 20 while the main skin piece SP1 is stretched to the side of the top plate side part 11.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a vehicle seat including a seat pad and a seat cover covering the seat pad, and a suspension member attached to a part of the seat cover is attached to the groove portion of the seat pad so as to be pulled in, and the manufacture thereof Regarding the method.

  This type of vehicle seat includes a seat pad that can elastically support an occupant and a planar seat cover that covers the seat pad. The seating surface of the seat pad is provided with a linear groove extending in an appropriate direction. The seat cover is formed by stitching a plurality of skin pieces, and a stitched portion that is a stitched portion of adjacent skin pieces is formed. And the stitching part is formed by overlapping the end parts of the adjacent skin pieces in the shape of a middle surface and stitching, and the stitching part is projected to the back side of the seat cover and extends along the corresponding groove part. Yes. Further, a band-like suspension member is sewn to the stitching portion, and this band-like suspension member is attached in a state of being pulled into the groove portion together with the stitching portion. For example, in the vehicle seat disclosed in Patent Document 1, a hanging cloth as a hanging member is attached to a stitched portion of the seat cover. And in the state which covered the seat pad with the seat cover, the hanging cloth as the hanging member is drawn into the groove portion of the seat pad and is hogged to the wire arranged at the bottom of the groove portion via the C ring.

  By the way, a typical seat pad is divided into a central top plate main portion in the seat width direction and top plate side portions provided on both left and right sides of the top plate main portion, and the top plate main portion and each top plate side. A groove portion is provided between the portions. The seat cover includes a main skin piece covering the top plate main portion and a side skin piece covering the corresponding top plate side portion, and a suspension member is attached to the stitched portion of both skin pieces. The suspension member is typically attached to the side skin piece side of the stitching portion, and the entire suspension member is visually observed from the top plate side portion side in a state where the main skin piece portion is applied to the top plate main portion. It can be confirmed with. Therefore, when the seat cover is covered, the main skin piece part is applied to the top plate main part, and then the suspension member exposed on the top plate side part side is attached in the groove while being visually confirmed. . Next, the end of the seat cover is attached to an appropriate position of the seat pad while applying a side skin piece corresponding to each top plate side portion.

JP 2013-435 A

  By the way, in the above-mentioned structure, the main skin piece comprises the center part in the seat width direction of a seat cover, and is arrange | positioned in the part which supports the passenger | crew of a seated state. In this type of sheet configuration, it is desired that an appropriate tension is applied to the main skin piece in the sheet width direction in consideration of the finish of the sheet. For example, in the mounting operation of the above-described suspension member, the tension member is applied to the main skin piece from the seat width direction by attaching the suspension member to the groove portion in a state of being pulled to the top plate side portion side together with the main skin piece. I can leave. However, in the configuration in which the suspension member is attached to the side skin piece side of the stitching portion as described above, the main skin piece cannot be pulled sufficiently and an appropriate tension may not be applied. That is, in the above-described configuration, the tension force of the suspension member is transmitted to the main skin piece indirectly through the side skin piece forming the stitching portion, so that the tension is greater than when the main skin piece is pulled directly. It was a configuration that was difficult to apply. The present invention has been devised in view of the above points, and the problem to be solved by the present invention is to utilize the force when attaching the suspension member attached to the seat cover to the groove of the seat pad. It is to ensure that an appropriate tension is applied to the central portion of the seat cover in the sheet width direction.

  As means for solving the above problems, a vehicle seat according to a first aspect of the present invention includes a seat pad that can elastically support an occupant and a planar seat cover that covers the seat pad. The suspension member attached to a part is attached in a state of being pulled into the groove portion of the seat pad. The seat pad has a top plate main portion disposed at the center in the seat width direction and a top plate side portion disposed on the side of the top plate main portion in the seat width direction, and the top plate main portion and the top plate side A groove portion is provided between the portions. In addition, the seat cover is formed as a part of the seat cover by stitching the main skin piece covering the top plate main portion and the side skin pieces covering the top plate side portions adjacent to each other in the middle surface. It has a stitched part.

  Then, the suspension member attached to the stitching portion is attached to the groove portion. In this type of configuration, the force at the time of attaching the suspension member to the groove portion is used, and the central portion of the seat cover in the seat width direction is used. It is desirable to ensure that proper tension is applied. Therefore, in the present invention, the suspension member attached to the main skin piece side of the stitching portion is attached to the groove portion in a state where the main skin piece is pulled toward the top plate side portion side. In the present invention, the main skin piece can be stretched directly toward the top plate side portion side by attaching the suspension member to the main skin piece side of the stitching portion. By pulling the main skin piece directly with the suspension member in this way, it is possible to more reliably apply an appropriate tension to the main skin piece.

  The vehicle seat of the second invention is the vehicle seat of the first invention, wherein the suspension member is connected to the stitched portion by the stitching line that stitches the adjacent end portions of the main skin piece and the side skin piece at the stitched portion. It has an extension part that is attached and extends toward the groove part side from the suture line. And the holding | maintenance part currently hold | maintained in the state which made the extension part closely_contact | adhere to the main skin piece side of the stitching | suture part is provided in the stitching | suture part. In the present invention, the extension portion of the suspension member is held by the holding portion at the stitching portion, and is thus brazed so as to face the side skin piece side instead of the main skin piece side. Thus, the main skin piece can be stretched in a natural manner on the top plate side portion side by directing the extension portion of the suspension member so that the holding portion faces the side skin piece side.

  The vehicle seat of the third invention is the vehicle seat of the second invention, wherein the holding part penetrates the extension part and the stitching part in the thickness direction. In the present invention, the main skin piece is stably stretched to the top plate side portion side by directing the extension portion of the suspension member so that the holding portion having a relatively strong structure faces the side skin piece side. I can keep it.

  The vehicle seat according to a fourth aspect of the present invention is the vehicle seat according to the second or third aspect, wherein the holding portion is constituted by another suture line in which the extension portion is sewn to the suture portion. In this invention, the extension part of a suspension member can be made to face the side skin piece side by the holding part of the simple structure called another stitching | suture line.

  The vehicle seat of the fifth invention is the vehicle seat of any one of the first to fourth inventions, wherein the vehicle seat has a seat cushion that supports the lower half of the seated occupant, and the main skin piece is It is arranged at the rear of the seat cushion that supports the seated occupant's buttocks. In the present invention, an appropriate tension can be more reliably applied to the main skin piece that supports the occupant's buttocks, so that the seat seating property can be improved.

  The vehicle seat of the sixth invention is the vehicle seat of any one of the first to fifth inventions, wherein the seat pad crosses the groove part across the top plate main part in the seat width direction. have. In addition, the seat cover is stitched by overlapping the other skin piece adjacent to the main skin piece with another groove, and the adjacent end portions of the main skin piece and the other skin piece overlapped in the middle surface shape. And other formed suture portions. The suspension member is attached from the main skin piece side of the stitching portion to the main skin piece side of the other stitching portion, and the suspension member portion attached to the stitching portion is attached to the groove portion in a retracted manner. The hanging member portion attached to the other stitching portion is attached to the other groove portion in a retracted manner. In the present invention, the corresponding stitching portion of the main skin piece can be attached in a retracted manner to each groove portion provided at a different position by one hanging member.

  According to a seventh aspect of the present invention, there is provided a vehicle seat manufacturing method in which a seat pad capable of elastically supporting an occupant is covered with a planar seat cover, and a suspension member attached to a part of the seat cover is attached to the seat pad. This is a method for manufacturing a vehicle seat that is pulled in and attached to a groove. The seat pad has a top plate main portion disposed at the center in the seat width direction and a top plate side portion disposed on the side of the top plate main portion in the seat width direction, and the top plate main portion and the top plate side A groove portion is provided between the portions. In addition, the seat cover is formed as a part of the seat cover by stitching the main skin piece covering the top plate main portion and the side skin pieces covering the top plate side portions adjacent to each other in the middle surface. It has a stitched part.

  Therefore, in the present invention, the suspension member is attached to the main skin piece side of the stitching portion by the stitching line that stitches the adjacent end portions of the main skin piece and the side skin piece in the stitching portion, and the groove portion is located more than the stitching line. The extension part of the suspension member extended toward the side is brought into close contact with the main skin piece side of the suture part at the holding part of the suture part. When the seat pad is covered with the seat cover, the suspension member is attached to the groove portion while being pulled toward the top plate side portion side together with the main skin piece. In the present invention, the main skin piece can be pulled directly toward the top plate side portion side by attaching the suspension member to the main skin piece side of the stitching portion. Furthermore, the suspension member can be pulled smoothly toward the top plate side portion side by brazing the holding portion so that it faces the side skin piece side instead of the main skin piece side.

  According to the first aspect of the present invention, the force at the time when the suspension member attached to the seat cover is attached to the groove of the seat pad is used to ensure that the center portion of the seat cover in the seat width direction is more appropriately You can keep tension. Further, according to the second invention, it is possible to more reliably apply an appropriate tension to the central portion of the seat cover in the seat width direction by more smoothly using the force when attaching the suspension member to the groove. According to the third aspect of the present invention, the force when attaching the suspension member to the groove can be utilized more smoothly due to the relatively strong configuration. According to the fourth aspect of the present invention, the force for attaching the suspension member to the groove can be utilized more smoothly with a relatively simple configuration. According to the fifth aspect of the invention, it is possible to reliably apply an appropriate tension to the central portion of the seat cover in the seat width direction while improving seating performance of the seat. According to the sixth aspect of the invention, an appropriate tension can be reliably applied to the central portion of the seat cover in the seat width direction with a simpler configuration. According to the seventh aspect of the invention, an appropriate tension can be applied to the central portion of the seat cover in the seat width direction with good workability and more reliably by using the force when attaching the suspension member to the groove.

It is a perspective view of a vehicle seat. It is a perspective view of a seat cover and a seat pad. FIG. 3 is a cross-sectional view of a seat cover corresponding to a cross section taken along line III-III in FIG. 2. FIG. 4 is an enlarged cross-sectional view of a part of the seat cushion corresponding to a portion surrounded by a two-dot broken line of IV shown in FIG. 3. 10 is an enlarged cross-sectional view of a part of a seat cover according to Modification 1. FIG. 10 is an enlarged cross-sectional view of a part of a seat cover according to Modification 2. FIG. It is a reverse view of the seat cover concerning the modification 3.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to FIGS. In each figure, arrows indicating the front-rear direction, the vertical direction, and the left-right direction of the vehicle seat are appropriately illustrated. The vehicle seat 2 in FIG. 1 includes a seat cushion 4, a seat back 6, and a headrest 8. Each of these seat components includes a seat frame (4F, 6F, 8F) that forms a seat skeleton, a seat pad (4P, 6P, 8P) that can elastically support an occupant, and a seat cover that covers the seat pad ( 4S, 6S, 8S). A lower portion of the seat back 6 is connected to the rear portion of the seat cushion 4 (described later in detail) so that the seat back 6 can be raised and lowered, and a headrest 8 is disposed on the upper portion of the seat back 6 in the standing state.

[Seat cushion]
The seat cushion 4 is a member that serves as a seat that supports the lower body of the occupant, and is attached to a plurality of grooves 20 to 22 provided in the seat pad 4P and a part of the seat cover 4S with reference to FIG. A plurality of suspension members 40 to 42 are provided (details of each part will be described later). When the seat pad 4P is covered with the seat cover 4S, the suspension members 40 to 42 are attached to the corresponding groove portions 20 to 22 in a retracted manner. At this time, in consideration of the finish of the sheet and the like, it is desirable that the center portion (main skin piece SP1 to be described later) of the seat cover 4S in the sheet width direction is applied with an appropriate tension. Therefore, in the present embodiment, with the configuration described later, the main skin piece SP1 of the seat cover 4S is more reliably used by using the force when attaching a part of the hanging members 40 (41) to the corresponding grooves 20 (21). We decided to put an appropriate tension on Hereinafter, each configuration will be described in detail.

[Basic configuration]
In the seat cushion 4, a seat pad 4P is disposed on a seat frame 4F (not shown) and covered with a seat cover 4S. Here, the seat frame 4F is a substantially rectangular frame as viewed from above, and can be formed of a material such as metal or hard resin having excellent rigidity. Further, the seat pad 4P is a substantially rectangular member as viewed from above that forms the outer shape of the seat, and can elastically support an occupant. The seat pad 4P can be formed of an elastically stretchable resin, and examples of this type of resin include foamed resins such as polyurethane foam (density: 10 kg / m ^{3 to} 60 kg / m ³ ).

[Top plate main part, top plate side part]
The upper surface forming the seating surface of the seat pad 4P can be divided into a top plate main portion 10 and a pair of left and right top plate side portions 11 and 12 with reference to FIG. 22. The top plate main portion 10 is a central portion of the seat pad 4P in the seat width direction, and extends in the front-rear direction of the seat with an appropriate width dimension. In addition, on the left and right sides of the top plate main portion 10, top plate side portions 11 and 12 that protrude upward from the top plate main portion 10 are provided. The occupant side portion can be supported by the right top plate side portion 11 and the left top plate side portion 12 during a turn such as when traveling on a curve.

[Groove part / other groove part]
Each of the plurality of groove portions (the right groove portion 20, the left groove portion 21, the front groove portion 22 and the like) is a linear concave portion provided on the seating surface of the seat pad 4P (in FIG. 2, a specific code for a specific groove portion). And the other grooves are omitted). The right groove portion 20 and the left groove portion 21 are portions corresponding to the groove portions of the present invention, and are provided between the top plate side portions 11 and 12 corresponding to the top plate main portion 10 and extend in the seat front-rear direction. That is, the right groove portion 20 is provided between the top plate main portion 10 and the right top plate side portion 11, and the left groove portion 21 is provided between the top plate main portion 10 and the left top plate side portion 12. ing. Further, the front groove portion 22 is a portion corresponding to another groove portion of the present invention, and extends in the left-right direction while curving across the top plate main portion 10. 10 is bisected back and forth. And each groove part 20-22 is each provided with the locking member XM shown in FIG. 4, and the locking member XM of each groove part 20-22 has a substantially identical structure. For example, the locking member XM of the right groove portion 20 is a wire-like member that is long in the front-rear direction, and is embedded and integrated on the bottom side of the right groove portion 20. A part of the locking member XM is exposed to the outside from the recessed portion where the bottom surface of the right groove 20 is partially deepened, and faces the locked member YM of the right hanging member 40 described later. Be placed.

[Seat Cover]
The seat cover 4S is a bag-like member that can cover the seat pad 4P. Referring to FIG. 2, a plurality of skin pieces (a main skin piece SP1, a pair of left and right side skin pieces SP2, SP3, a front skin piece SP4) Etc.) (for the sake of convenience, a specific code is attached to only a part of the skin pieces, and a common code SP is attached to the other skin pieces). The main skin piece SP <b> 1 is a skin piece whose front side is convexly convex forward and whose rear side is substantially rectangular, and can cover the rear portion of the top plate main portion 10 disposed behind the front groove portion 22. Further, the right side skin piece SP2 is a vertically long skin piece that is elongated in the front-rear direction, and can cover the right top plate side portion 11. The left side skin piece SP3 is a skin piece that is substantially symmetrical to the right side skin piece SP2, and can cover the left top plate side portion 12. The front skin piece SP4 is a skin piece corresponding to another skin piece of the present invention. This front skin piece SP4 is a skin piece whose rear side is convexly convex forward and whose rear side is substantially rectangular, and can cover the front portion of the top plate main portion 10 disposed in front of the front groove portion 22. it can. A hook member FM having a J-shaped cross section is attached to an appropriate position at the end of the seat cover 4S. Each of these hook members FM can be hooked on the back surface of the seat pad 4P. For example, the hook members FM can be hooked on a hook member (not shown) or a seat frame embedded in the back surface of the seat pad.

[Suture part]
The seat cover 4S is provided with a plurality of stitched portions (the right stitched portion 30, the left stitched portion 31, the front stitched portion 32, etc.), and each stitched portion 30 to 32 is connected to the ends of the adjacent skin pieces. It is formed by sewing. For example, in the right stitching portion 30, the right edge end E1 of the main skin piece SP1 and the left edge end E4 of the right side skin piece SP2 are overlapped in a middle shape with reference to FIGS. It is a stitched part. The right suture line 30 is sewn with a first suture line SEW1 extending in the front-rear direction in a state where the ends E1, E4 of both skin pieces are overlapped on the left and right. The right stitching portion 30 protrudes toward the seat pad 4P side in a state where the seat pad 4P is covered with the seat cover 4S, and is disposed along the right groove portion 20 extending in the front-rear direction. 3 is formed by stitching the left edge E2 of the main skin piece SP1 and the right edge E5 of the left side skin piece SP3 in the same manner as the right suture 30. Has been. The left stitching portion 31 is disposed along the left groove 21 in a state where the seat pad 4P is covered with the seat cover 4S. 2 is also formed by stitching the front edge end E3 of the main skin piece SP1 and the rear edge end E6 of the front skin piece SP4 in the same manner as the right suture part 30. . The front stitching portion 32 is disposed along the front groove portion 22 that extends while curving in the left-right direction when the seat pad 4P is covered with the seat cover 4S.

[Hanging member]
The plurality of suspension members (the right suspension member 40, the left suspension member 41, and the front suspension member 42) are attached to the stitching portions 30 to 32 that are part of the seat cover 4S with reference to FIG. It is a strip-shaped face material. The right suspension member 40 is attached along the right suture part 30 and is disposed at a position where it can be retracted into the right groove part 20. Further, the left suspension member 41 is attached along the left suture part 31 and is disposed at a position where it can be retracted into the left groove part 21. And the front side suspension member 42 is attached along the front side stitching | suture part 32, and is arrange | positioned in the position which can be drawn in to the front side groove part 22. FIG. In addition, although the raw material illustrated by the seat cover 4S can be used as a raw material of each suspension member 40-42, it is desirable to form with the raw material which is excellent in tensile strength and is hard to extend rather than the seat cover 4S. For example, when the seat cover 4S and the hanging members 40 to 42 are formed of the same material, the seat cover 4S can be formed of a woven or knitted fabric, and the hanging members 40 to 42 can be formed of a non-woven fabric that is less likely to be stretched than the woven or knitted fabric. .

  And since the basic composition and attachment method of each suspension member 40-42 are substantially the same, the detail is explained in full detail only by making the right suspension member 40 into an example. As shown in FIG. 4, the right-hand hanging member 40 is formed of a band-shaped face material that is folded up and down, and has an extended portion 40 a and a locked member YM. The right suspension member 40 is attached to the right suture part 30 by free stitching the free end side to the first suture line SEW1. At this time, in this embodiment, the right suspension member 40 is attached to the right edge E1 of the main skin piece SP1 of the right suture part 30 in order to apply an appropriate tension to the main skin piece SP1 as described later. The left hanging member 41 is also attached to the left edge E2 of the main skin piece SP1 of the left stitching portion 31 as shown in FIG. 3, and the front hanging member 42 is also a front stitching as shown in FIG. The part 32 is attached to the main skin piece side (the rear side in FIG. 2).

[Extension]
In addition, referring to FIG. 4, the extension 40 a is a right hanging member 40 portion disposed below the first suture line SEW <b> 1, and the bag-like connecting end side of the right hanging member 40 is connected to the first suture line. It is formed by folding downward from the line SEW1. A wire-like locked member YM is inserted into the end of the bag-like extension portion 40a. The locked member YM extends in the front-rear direction and is locked in the right groove portion 20. It is arrange | positioned in the position which can face. A notch 40b for exposing the locked member YM is provided at an appropriate position of the extension 40a, and the locked member YM exposed from the notch 40b will be described later. Can be attached to the locking member XM.

[Attaching method of suspension member to seat cover]
Here, the method of attaching the right suspension member 40 to the right suture portion 30 is not particularly limited. For example, the right suspension member 40 can be sewn to the first suture line SEW1 of the right suture portion 30 together. That is, when forming the right stitch portion 30, the end portions E1 and E4 are stitched together with a sewing machine in a state where the main skin piece SP1 and the right side skin piece SP2 are overlapped in a middle shape. Therefore, prior to sewing with the sewing machine, the right-hand hanging member 40 that is folded inward is placed on the back side of the main skin piece SP1, and the free end of the right-hand hanging member 40 is placed on the right edge of the main skin piece SP1. It is aligned with the end of the part E1. In this state, both the skin pieces SP1 and SP2 and the right suspension member 40 are sewn together by the first suture line SEW1, so that the right suspension member 40 is attached to the right edge end E1 of the main skin piece SP1 of the right suture portion 30. Can be installed together. Then, both skin pieces SP1, SP2 are developed so as to be planar with the right suture part 30 as a base point, the right suture part 30 is arranged on the back side of both skin pieces, and the right hanging member 40 is Folded around the stitching line SEW1 as a base point. By doing so, the main skin piece SP1 and the right side skin piece SP2 are stitched together to form the right suture part 30, and the right suspension member 40 is also sewn and attached to the right suture part 30 at appropriate positions. Can do.

[Covering the seat cover]
Referring to FIG. 2, while covering the seat pad 4 </ b> P with the seat cover 4 </ b> S, the suspension members 40 to 42 attached to a part of the seat cover 4 </ b> S are drawn into the corresponding grooves 20 to 22. Install. In the present embodiment, the main skin piece SP1 constitutes the center in the seat width direction of the seat cover 4S and is disposed at the rear portion of the seat cushion 4. Since the main skin piece SP1 is disposed at a position that supports the seated occupant's buttocks, it is desirable to apply an appropriate tension from the viewpoint of finishing and improving seating. Therefore, in the present embodiment, the seat cover 4S is formed as a part of the seat cover 4S by stitching the adjacent end portions of the main skin piece SP1 and the side skin piece SP2 (SP3) in an intermediate surface shape. And has a stitched portion 30 (31). And the hanging part 40 (41) attached to the main skin piece SP1 side of each stitching | suture part 30 (31) is corresponding groove part 20 (21) in the state which pulled the main skin piece SP1 to the top-plate side part side. Installed on.

  That is, in the present embodiment, in the covering operation of the seat cover 4S, the main skin piece SP1 is in a state of being applied to the top plate main portion 10 of the seat pad 4P. In this state, the right suspension member 40 attached to the main skin piece SP1 side of the right suture part 30 is pulled into the right groove part 20 while being pulled toward the right top plate side part 11 as shown in FIG. Go. And the to-be-latched member YM inserted through the right-hand hanging member 40 is hog ring-stopped to the locking member XM exposed from the right-side groove 20 via the ring-shaped fastener ZM. By doing so, the main skin piece SP1 is stretched to the right by the right hanging member 40 attached to the right groove 20 in a state inclined rightward and downward. Similarly, as shown in FIG. 3, the left hanging member 41 is hogged and stopped in the left groove portion 21 while being pulled toward the left top plate side portion 12 side. By doing so, the main skin piece SP1 is pulled to the left by the left-side suspension member 41 attached to the left-side groove portion 21 in a state of being inclined leftward and downward. In the present embodiment, the left and right suspension members 40 and 41 are directly stitched to the main skin piece SP1 side of the corresponding stitching portions 30 and 31. Therefore, the main skin piece SP1 can be pulled directly by pulling the left and right suspension members 40 and 41 as described above. By pulling the main skin piece SP1 directly with the left and right suspension members 40 and 41 in this way, an appropriate tension in the sheet width direction can be more reliably applied to the main skin piece SP1.

  Next, referring to FIG. 2, the corresponding top plate side portions 11 and 12 are covered with the left and right side skin pieces SP2 and SP3. Further, after the front hanging member 42 is hogged and stopped in the front groove portion 22, the front skin piece SP4 covers the front portion of the top plate main portion 10. Then, the seat pad 4P can be covered with the seat cover 4S by hooking the hook members FM attached to the end side of the seat cover 4S at appropriate positions on the back side of the seat pad 4P. In the state where the seat cover 4S is covered, the main skin piece SP1 is disposed at the rear portion of the seat cushion 4 that supports the seated occupant's buttocks as shown in FIG. The main skin piece SP1 covers the seat pad 4P with good finish in a state where an appropriate tension is applied as described above. Therefore, the occupant's buttocks can be supported by the main skin piece SP1 having an appropriate tension with good seating, and the main skin piece SP1 has almost no wrinkles or slack, so that the seat structure has a good appearance.

  As described above, in this embodiment, the main skin piece SP1 is directly stretched toward the top plate side portion side by attaching the suspension member 40 (41) to the main skin piece SP1 side of each stitching portion 30 (31). You can keep it. By pulling the main skin piece SP1 directly with the suspension member 40 (41) in this way, it is possible to more reliably apply an appropriate tension to the main skin piece SP1. In this embodiment, an appropriate tension can be applied more reliably to the main skin piece SP1 that supports the seated occupant's buttocks, so that the seat seating performance can be improved. For this reason, according to the present embodiment, the seat width of the seat cover 4S is utilized by utilizing the force when the suspension member 40 (41) attached to the seat cover 4S is attached to the groove 20 (21) of the seat pad 4P. The central part in the direction can ensure proper tension.

[Modification 1]
Here, the configuration of the stitching portion and the suspension member can take various configurations in addition to the above-described configuration. For example, in this modified example, referring to FIG. 5, a holding portion 50 is provided in the right suture portion 30, and at this holding portion 50, the right edge end E <b> 1 of the main skin piece SP <b> 1 of the right suture portion 30 is provided. The extension 40a is held in close contact. The holding portion 50 is formed by a second suture line SEW2 that stitches the extension 40a to the right suture portion 30, and this second suture line SEW2 is a portion corresponding to another suture line of the present invention. is there. The second suture line SEW2 constituting the holding part 50 passes through the extension 40a and the right suture part 30 in the thickness direction below the first suture line SEW1, and in the front-rear direction along the first suture line SEW1. It extends continuously. That is, the second suture line SEW2 penetrates the extension 40a, and further penetrates the right edge end E1 of the main skin piece SP1 and the left edge end E4 of the side skin piece SP2 in the thickness direction (relatively strong). Configuration).

[Covering the seat cover]
Then, in the covering operation of the seat cover 4S, the right suspension member 40 attached to the main skin piece SP1 side of the right stitching portion 30 is pulled into the right groove portion 20 while being pulled to the right top plate side portion 11 side. Go. At this time, in this modification, the extension portion 40a is brazed by the holding portion 50 so as to face not the main skin piece SP1 side but the side skin piece SP2 side, so that the right side top plate side portion 11 side faces. Can be pulled smoothly. That is, if there is no holding portion, when the main skin piece SP1 is applied to the top plate main portion 10, the extension portion 40a falls to the back side of the main skin piece SP1, and the right side of the top plate side portion 11 side. There are times when it takes time and effort to pull. Then, the extension part 40a is brazed so that it may face the side skin piece SP2 side by the holding | maintenance part 50, and the unintended fall of the extension part 40a can be avoided as much as possible. For this reason, according to this modification, the attachment operation | work of the right suspension member 40 with respect to the right side groove part 20 can be performed smoothly, and it becomes the structure which contributes to the assembly workability | operativity of a sheet | seat.

  And in this modification, the main skin piece SP1 is made more natural in the top plate side part side by directing the extension part 40a of the right-hand hanging member 40 to face the side skin piece SP2 side at the holding part 50. Can be stretched. Further, the second suture line SEW2 as the holding portion 50 can be formed together with the first suture line SEW1 by a sewing machine, and can be configured only by sewing threads. For this reason, the extension part 40a can be made to face the side skin piece SP2 side by the right suture part 30 having a relatively simple configuration. The second suture line SEW2 as the holding portion 50 penetrates the right hanging member 40 and the right suture portion 30 in the thickness direction. For this reason, the main skin piece SP1 is stably pulled toward the right top plate side part 12 side by directing the extension part 40a so as to face the side skin piece SP2 side by the holding part 50 having a relatively strong structure. I can keep it.

[Modification 2]
In addition to the above-described configuration, the holding unit may have various configurations. For example, in this modification, with reference to FIG. 6, a pin-shaped holding member 52 is used as the holding portion. The holding member 52 penetrates the extension portion 40a and the right suture portion 30 in the thickness direction below the first suture line SEW1. Further, the right and left ends of the holding member 52 are respectively provided with large-sized heads 52a for preventing removal, and the left and right heads 52a are exposed from the extension 40a or the right suture part 30, respectively. Thus, also in this modified example, the extension 40a is held on the right suture part 30 by the holding member 52, so that it can be brazed so as to face the side skin piece SP2 side instead of the main skin piece SP1 side. it can. And in this modification, the holding member 52 as a holding | maintenance part can be arrange | positioned intermittently along 1st suture line SEW1. At this time, by appropriately changing the number of the holding members 52 arranged, it is possible to increase or decrease the brazing of the right-hand hanging member 40 with respect to the right-hand suture portion 30. For example, the right suture part 30 may be bent to the left as viewed from above, but at the bent right suture part 30, a circumferential length difference is generated between the right suspension member 40 and the right suspension member 40. It becomes relatively easy to leave. For this reason, it is possible to increase the number of the holding members 52 in the bent right stitch portion 30 and to firmly brace the right hanging member 40. On the other hand, in the portion where the right suture part 30 is arranged in a straight line, the right suspension member 40 is relatively difficult to separate from the right suture part 30, and therefore the number of holding members 52 arranged may be reduced. it can.

[Modification 3]
The suspension member can also be attached across the right suture part 30 and the front suture part 32. For example, in this modification, referring to FIG. 7, relatively long suspension members 45 are connected to the main skin piece SP1 side of the right suture part 30, the main skin piece SP1 side of the front suture part 32, and the left side. It is attached across the main skin piece SP1 side of the stitching portion 31. During the covering operation of the seat cover 4S, the suspension member 45 is disposed so as to be substantially U-shaped, and is attached to the right groove portion 20, the front groove portion 22, and the left groove portion 21 shown in FIG. be able to. As described above, in the present modification, each of the stitching portions 30 to 32 can be attached to the corresponding groove portion with a single pull-in member 45. If the suspension member 45 is attached to the left edge E4 of the side skin piece of the right suture part 30, the suspension member 45 may be attached to the main skin piece SP1 side (E3 side) of the front suture part 32. The right stitching portion 30 is obstructive and cannot be attached obediently. The configuration of the present modification can be applied to a configuration in which the suspension member is attached across at least one of the right suture portion 30 and the left suture portion 31 and the front suture portion 32. The configuration of the present modification can also be applied to a seat pad having a main skin piece and a rear skin piece (not shown) as another skin piece arranged behind the main skin piece. The other groove is formed behind the main skin piece.

  The vehicle seat of the present embodiment is not limited to the above-described embodiment, and can take other various embodiments. In this embodiment, although the structure (shape, dimension, arrangement position, arrangement number, etc.) of the suspension members 40 to 42 and 45 is illustrated, it is not intended to limit the structure of the suspension members. For example, the suspension member may have a suspender structure in which the end portion has an arrowhead shape. In this case, the arrowhead portion can be configured with a member having excellent rigidity such as a resin plate. In the suspension member having the suspender structure, the end portion in the shape of an arrowhead is relatively firmly locked in a state of being sandwiched by the locking member in the groove. The suspension member can be attached to a corresponding stitching portion with a configuration different from the first stitching line (for example, another stitching line). Moreover, the extension part of the suspension member can also be configured with a single piece of face material overlapping the stitching part. In this case, only the part holding the locked member is folded back into a bag shape and the extension part It can be fixed to. And in this embodiment, although the structure of this invention was applied to both the right side suspension member and the left side suspension member, the structure of this invention is applicable to at least one of a right side suspension member and a left side suspension member. .

  In the present embodiment, the second suture line SEW2 (holding unit 50) and the holding member 52 are exemplified as the holding unit, but the configuration of the holding unit is not limited. For example, the holding part only needs to have a structure in which the extension part is brought into close contact with the corresponding stitching part, and has a chemical close contact structure such as adhesion, adhesion, and fusion, and a physical close contact structure such as staple, bolt, and clip. It can be illustrated. Further, when a suture line or a pin-like member is used as the holding part, it is desirable that the holding part penetrates at least the main skin piece forming the stitching part. In addition, a plurality of holding portions can be provided at the stitching portion in the extending direction of the extending portion. In addition, the configuration of each modification can be used in appropriate combination with the configuration of the embodiment. In each modified example, the right suture portion has been described as an example, but the holding portion can be provided in at least one of the right suture portion and the left suture portion, or can be provided in the front suture portion.

  In the present embodiment, the configuration (shape, dimensions, arrangement position, arrangement number, etc.) of the seat cover 4S and the seat pad 4P is illustrated, but the configuration of each member is not intended to be limited. For example, the main skin piece may be configured to cover the front portion of the top plate main portion. Moreover, the groove part of a seat pad can be extended in the appropriate direction of a seating surface, and the structure of each skin piece can be changed suitably according to the structure of each groove part.

  Moreover, although the configuration (shape, dimensions, constituent members, etc.) of the vehicle seat 2 is illustrated, the configuration of the vehicle seat is not intended to be limited. In the present embodiment, the seat cushion has been described as an example, but the configurations of the present embodiment and the modified example can be applied to various seat constituent members such as a seat back and a headrest. In addition, when applying the structure of a present Example to a seat back, a main skin piece can be arrange | positioned under the seat back which supports the passenger | crew's waist | hip | lumbar part of a seating state. And the structure of this embodiment is applicable to vehicle seats, such as a vehicle, an aircraft, and a train.

2 Vehicle seat 4 Seat cushion 6 Seat back 8 Headrest 4F Seat frame 4P Seat pad 4S Seat cover 10 Top plate main portion 11 Right top plate side portion 12 Left top plate side portion 20 Right groove portion 21 Left groove portion 22 Front groove portion 30 Right suture part (suture part of the present invention)
31 Left suture part (suture part of the present invention)
32 Front suture part (another suture part of the present invention)
40 Right-hand suspension member 40a Extension 40b Notch 41 Left-hand suspension member 42 Front-side suspension member 45 Suspension member 50 of Modification 3 Holding section 52 of Modification 1 Holding member 52a of Modification 2 Head FM Hook member SEW1 first suture line (suture line of the present invention)
SEW2 Second suture line (the other suture line of the present invention)
SP1 Main skin piece SP2 Right side skin piece SP3 Left side skin piece SP4 Front skin piece (other skin pieces of the present invention)
XM Locking member YM Locked member ZM Clip

Claims (7)

A seat pad that can elastically support an occupant and a planar seat cover that covers the seat pad, and a suspension member attached to a part of the seat cover is provided in the groove portion of the seat pad In a vehicle seat that is installed in a retracted state,
The seat pad has a top plate main portion disposed at the center in the seat width direction, and a top plate side portion disposed on the side of the top plate main portion in the seat width direction, and the top plate main portion and the The groove portion is provided between the top plate side portions,
As the seat cover, as a part of the seat cover, adjacent end portions of a main skin piece covering the top plate main portion and a side skin piece covering the top plate side portion are overlapped and stitched in a middle surface shape. Having a stitched portion formed of
The vehicle seat in which the suspension member attached to the main skin piece side of the stitching part is attached to the groove portion in a state where the main skin piece is stretched to the top plate side part side. The suspension member is attached to the stitching portion by a stitching line that stitches adjacent ends of the main skin piece and the side skin piece in the stitching portion, and the groove portion than the stitching line. Having an extension extending towards the side,
The vehicle seat according to claim 1, wherein the stitching portion is provided with a holding portion that holds the extension portion in close contact with the main skin piece side of the stitching portion.   The vehicle seat according to claim 2, wherein the holding portion penetrates the extension portion and the stitching portion in the thickness direction.   4. The vehicle seat according to claim 2, wherein the holding portion is configured by another suture line in which the extension portion is sewn to the suture portion.   The vehicle seat has a seat cushion that supports a lower body of a seated occupant, and the main skin piece is disposed at a rear portion of the seat cushion that supports a seated occupant buttock. The vehicle seat according to any one of the above. The seat pad has another groove part that crosses the groove part across the top plate main part in the sheet width direction,
The seat cover overlaps the main skin piece with the other groove part sandwiched between the other skin pieces, and the adjacent ends of the main skin piece and the other skin piece overlap each other in a middle surface shape. Having other stitched portions formed by stitching,
The hanging member is attached across the main skin piece side of the other stitching portion from the main skin piece side of the stitching portion, and the hanging member portion attached to the stitching portion is the groove portion. 6. The vehicle according to claim 1, wherein the hanging member portion attached to the other stitching portion is attached to the other groove portion in a retracted manner. Sheet. Manufacture of a vehicle seat in which a seat pad that can elastically support an occupant is covered with a planar seat cover, and a suspension member attached to a part of the seat cover is pulled into the groove of the seat pad and attached. In the method
The seat pad has a top plate main portion disposed at the center in the seat width direction, and a top plate side portion disposed on the side of the top plate main portion in the seat width direction, and the top plate main portion and the The groove portion is provided between the top plate side portions,
As the seat cover, as a part of the seat cover, adjacent end portions of a main skin piece covering the top plate main portion and a side skin piece covering the top plate side portion are overlapped and stitched in a middle surface shape. Having a stitched portion formed of
The suspension member is attached to the main skin piece side of the suture portion by a suture line that stitches adjacent ends of the main skin piece and the side skin piece in the suture portion, and more than the suture line. The extension part of the suspension member extending toward the groove part side is brought into close contact with the main skin piece side of the suture part at the holding part of the suture part,
A method for manufacturing a vehicle seat, wherein when the seat pad is covered with the seat cover, the suspension member is attached to the groove portion while being pulled toward the top plate side portion side together with the main skin piece.

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