JP6693333B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a seat pad having a partially different hardness, a seat cover for covering the seat pad, a suspending member for the seat cover mounted in the groove portion of the seat pad, and the suspending member positioned at an appropriate position in the groove portion. A vehicle seat having a positioning section for

  As a vehicle seat of this type, a vehicle seat including a foam resin seat pad, a seat cover, a suspending member, and a positioning projection is known (see Patent Document 1). In this vehicle seat, the front surface of the seat pad is covered with a seat cover, and a part of the seat cover is locked in a groove provided in the front surface of the seat pad in a retracted manner. A flat plate-shaped suspending member is attached to the back side of a part of the seat cover, and the suspending member is pulled into and locked in the groove together with a part of the seat cover. In addition, a positioning projection is provided in the groove together with a locking tool that locks the suspending member. The positioning protrusion is a portion where the bottom wall of the groove is partially raised, and is provided so as to traverse the groove in the short-side direction. In the known art, the positioning projections are arranged near both ends of the suspending member in the extending direction of the groove. Therefore, even if the hanging member in the locked state tries to be displaced in the extension direction of the groove, it will always come into contact with one of the positioning projections. In this way, by restricting the movement of the suspending member in the extension direction of the groove by the contact with the positioning protrusion, the suspending member can be positioned and arranged at an appropriate position in the groove.

  In the vehicle seat described above, the hardness of the seat pad may be partially different from the viewpoint of improving the seat performance. For example, in a vehicle seat, a top main part on which an occupant is normally seated is provided at the center in the seat width direction. Further, a side of the top main portion is provided on a side of the main main portion, and the side of the top projects relatively toward the seating side, and the side of the top supports the side of the occupant during cornering. Therefore, the top plate main portion is made of a foamed resin having a relatively low density to be relatively soft, so that the occupant's seatability during normal traveling can be improved. Further, the side portion of the top plate is made of a foaming resin having a relatively high density and made relatively hard, so that it is possible to improve the occupant's support performance during cornering and the like.

JP, 2016-88365, A

  By the way, in the above-mentioned technique, a groove may be formed between a relatively soft top main part and a relatively hard top side. In this case, the positioning convex portion is provided across the groove portion so as to bridge the top main portion and the top side portion. When molding the seat pad, two kinds of molding materials are foamed in the cavity of the molding die in order to mold the foamed resin having different densities. For this reason, the positioning convex portion is mixed with the relatively soft top plate main portion material and the relatively hard top plate side portion material, which may deteriorate the seat performance. was there. For example, when a soft material is mixed into the relatively hard top plate side portion from the positioning protrusion, the top plate side portion may not have a desired shape. Further, if a hard material is mixed into the relatively soft top plate main portion from the positioning convex portion, the seatability may be deteriorated. The present invention has been made in view of the above points, and the problem to be solved by the present invention is to suspend the seat cover in the groove portion of the seat pad having partially different hardness while maintaining the seat performance as much as possible. It is to position and arrange the insert member.

  As a means for solving the above problems, a vehicle seat according to a first aspect of the present invention is a seat pad made of foam resin, a groove portion provided on the surface of the seat pad, a positioning portion protruding into the groove portion, and a seat. A seat cover covering the surface of the pad and a suspending member attached to the seat cover are provided. The movement of the suspending member in the extension direction of the groove is restricted by the contact with the positioning portion while the suspending member is mounted in the groove. In the present invention, the seat pad has a first pad portion and a second pad portion that is harder than the first pad portion, and at least one of the linear boundaries separating the first pad portion and the second pad portion. The portion extends in the same direction as the groove portion while overlapping the groove portion. In this way, from the viewpoint of improving the seat performance, etc., seat pads with partially different hardness are used, but in this type of configuration, while maintaining the seat performance as much as possible, the hanging member of the seat cover is provided in the groove portion of the seat pad. It is desirable to be able to position and arrange.

Therefore, in the present invention, the positioning portion provided in the portion where the boundary and the groove portion overlap each other is configured by either one of the first pad portion and the second pad portion, and the first pad different from the one portion. It is arranged in a state where it is not integrated with either the part or the second pad part. In the present invention, the suspending member should be positioned at an appropriate position of the groove portion in the portion where the boundary and the groove portion are overlapped with each other, by the positioning portion configured in either the first pad portion or the second pad portion. You can Since the positioning portion is not integrated with the other of the first pad portion and the second pad portion, it is possible to prevent the first pad portion and the second pad portion from being mixed with each other due to the positioning portion. You can

  A vehicle seat according to a second aspect of the present invention is the vehicle seat according to the first aspect of the present invention, wherein the positioning portion includes a second pad portion. In the present invention, the suspending member can be more stably positioned by the relatively hard positioning portion.

  A vehicle seat according to a third invention is the vehicle seat according to the first invention or the second invention, wherein one of the suspending members in the extension direction of the groove is used as a positioning portion provided at a portion where the boundary and the groove overlap. A first positioning portion that can come into contact with an end portion of the second positioning portion, and a second positioning portion that can come into contact with the other end portion of the hanging member located on the opposite side. Then, at least one of the first positioning portion and the second positioning portion is configured by the second pad portion. In the present invention, the suspending member can be positioned from both ends by the first positioning portion and the second positioning portion. Furthermore, by making at least one of the first positioning portion and the second positioning portion relatively hard, the suspending member can be positioned more stably.

  A vehicle seat according to a fourth aspect of the present invention is the vehicle seat according to any one of the first to third aspects, wherein the surface of the seat pad is provided with a corner portion formed by a groove portion and another groove portion intersecting with each other. At the same time, the positioning portion projects from the corner into the groove. In the present invention, the positioning portion is provided at the corner formed by one pad portion, and the positioning portion is not integrated with the other pad portion. Therefore, in the present invention, it is possible to prevent the configuration (shape, hardness, etc.) of the corner portion defined by one pad portion from being different due to the mixing of the other pad portion due to the positioning portion. it can.

  A vehicle seat according to a fifth aspect of the present invention is the vehicle seat according to any one of the first to fourth aspects of the present invention, wherein the groove has a bottom wall in which a locking member that can lock the suspending member is arranged, and a bottom wall. From the side wall to the opening of the groove portion, and the positioning portion projects from the side wall into the groove portion. In the present invention, the positioning portion projects into the groove portion while being integrated with the side wall of the groove portion. Therefore, it becomes possible to stably extend the positioning portion along the side wall and to provide it in a large size in the depth direction of the groove portion, so that the suspending member can be more reliably positioned and arranged.

  A vehicle seat according to a sixth aspect of the present invention is the vehicle seat according to any one of the first to fifth aspects of the present invention, which includes a positioning portion formed of the first pad portion and a second pad portion in the extending direction of the groove portion. The other positioning part is provided adjacent to the other positioning part. In the present invention, the two types of positioning portions having different hardness are alternately provided adjacent to each other, so that the suspending member can be positioned more reliably.

  A vehicle seat according to a seventh invention is the vehicle seat according to any one of the first invention to the sixth invention, wherein a seat pad is provided at the center in the width direction of the seat, and a top main part. And a top plate side portion that protrudes to the seating side at the side of. The top main part is composed of the first pad part, and the top side part is composed of the second pad part. In the present invention, the seat performance can be favorably improved by making the top plate main portion and the top plate side portion different in hardness.

  According to the first aspect of the present invention, it is possible to position and arrange the suspending member of the seat cover in the groove portion of the seat pad having partially different hardness while maintaining the seat performance as much as possible. Further, according to the second aspect, the suspending member can be more stably positioned and arranged in the groove portion of the seat pad. Further, according to the third aspect, the suspending member can be positioned and arranged in the groove portion of the seat pad more stably. Further, according to the fourth aspect, the suspending member can be positioned and arranged in the groove portion of the seat pad while maintaining the seat performance more appropriately. According to the fifth aspect, the suspending member can be more reliably positioned and arranged in the groove portion of the seat pad. Further, according to the sixth aspect, the suspending member can be more surely positioned and arranged in the groove portion of the seat pad. According to the seventh aspect, the suspending member can be positioned and arranged in the groove portion of the seat pad while further improving the seat performance.

It is a perspective view of a vehicle seat. It is a front view of a seat pad. It is an enlarged front view of the seat pad left side. It is a longitudinal cross-sectional view of a seat back. FIG. 5 is a sectional view of a part of the seat back corresponding to the section taken along the line VV of FIG. 3. It is a perspective view of a hanging member. It is a perspective view of a locking tool. FIG. 8 is a sectional view of a seat pad corresponding to a section taken along the line VIII-VIII of FIG. 3. It is an enlarged front view of a part of seat pad concerning a modification.

  Hereinafter, modes for carrying out the present invention will be described with reference to FIGS. 1 to 9. For the sake of convenience, arrows may be shown in the drawings to indicate the front-back direction, the left-right direction, and the up-down direction of the vehicle seat. The vehicle seat 2 of FIG. 1 includes a seat cushion 4, a seat back 6, and a headrest 8. These seat constituent members include a seat frame (4F, 6F, 8F) forming a seat skeleton, a seat pad (4P, 6P, 8P) forming a seat outer shape, and a seat cover (4S, 6S, 8S). A lower portion of a seat back 6 (described later in detail) is connected to a rear portion of the seat cushion 4 so as to be able to rise and fall, and a headrest 8 is provided on an upper portion of the seat back 6 in an upright state.

[Seat back]
The seat back 6 is a member having a substantially rectangular shape when viewed from the front, which allows a backrest of an occupant. 1 to 5, the seat back 6 includes the above-described basic configurations 6F, 6P, 6S, a plurality of groove portions 11 to 13, a plurality of locking members 21 to 30, and a plurality of positioning portions 41a. -41c, 42a-42c, 43a, 43b, and the some suspension member 50 (Details of each member etc. are mentioned later). Here, the front surface that is the seating surface of the seat back 6 is divided into a top main portion 6a and left and right top side portions 6b with reference to FIG. The top plate main portion 6a is a relatively recessed portion formed at the center in the seat width direction, and is a portion that allows an occupant's backrest during normal traveling or the like. The top plate side portion 6b is a portion that relatively projects to the seating side on the left side and the right side of the top plate main portion 6a, and can support the side of the occupant during cornering and the like.

  In the seat back 6, referring to FIG. 4, a seat pad 6P is arranged on a seat frame 6F (not shown), and the front surface of the seat pad 6P is covered with a seat cover 6S. At the time of covering the seat cover 6S, the suspension member 50 attached to a part of the seat cover 6S is pulled into the groove portion 11 or the like of the seat pad 6P to be described later, and the corresponding later-described engaging member in each groove portion 11 or the like. The stoppers 21 to 24 are locked. Further, the suspending member 50 in the locked state is positioned by the positioning portions 41a to 41c, which will be described later, so that the suspending member 50 does not move in the extension direction of the groove portions 11 and the like.

  With reference to FIG. 2, the seat pad 6P includes a relatively soft central first pad portion 6Pa (described later in detail) and relatively hard left and right second pad portions 6Pb (details) from the viewpoint of improving seat performance. It will be described later). Further, boundaries BL1 and BL2 between both pad portions 6Pa and 6Pb are provided so as to overlap the corresponding groove portions 11 and 12. In this type of structure, the seating performance may be deteriorated due to the mixing of the pad portions 6Pa and 6Pb due to the positioning portions 41a to 41c (42a to 42c) of the groove portions 11 (12). It In view of this, in the present embodiment, the suspension member 50 of the seat cover 6S is positioned and arranged in the groove portion 11 or the like of the seat pad 6P having a partially different hardness by the configuration described later while maintaining the seat performance as much as possible. did. Hereinafter, each configuration will be described in detail.

[Seat Cover]
The seat cover 6S is a face material that constitutes a design surface of the seat back 6 with reference to FIG. 1, and includes a plurality of suspending members 50 described later. The seat cover 6S is formed by stitching a plurality of skin pieces (first skin piece SP1 to fourth skin piece SP4, etc.). For example, the first skin piece SP1 is a skin piece that covers the upper portion of the top plate main portion 6a, and the second skin piece SP2 is a skin piece that covers the lower portion of the top plate main portion 6a. The third skin piece SP3 is a skin piece that covers the left top plate side portion 6b, and the fourth skin piece SP4 is a skin piece that covers the right top plate side portion 6b. Examples of the material of the first skin piece SP1 to the fourth skin piece SP4 include cloth (woven fabric, knitted fabric, non-woven fabric) and leather (natural leather, synthetic leather) made of natural fibers or synthetic fibers. Note that, on the back side of each skin piece, referring to FIG. 5, a pad material 7P such as urethane laminating and a back surface material 7S such as a non-woven fabric can be integrated.

[Hanging member]
Then, with reference to FIG. 1, the seat cover 6S is provided with hanging members 50 at the boundaries between adjacent skin pieces (SP1 and SP2, SP1 and SP3, SP2 and SP3, SP1 and SP4, SP2 and SP4). ing. 1 and 6, the suspending member 50 is a substantially rectangular strip member, and has a length dimension that can be arranged between a pair of positioning portions described later. The material of this kind of suspending member 50 is not particularly limited, but typically, it can be made of resin, cloth, or leather, and is preferably a material that can be sewn to the seat cover 6S. Then, with reference to FIG. 6, a locking portion 52 is integrated with one end 51E of the suspending member 50 in the short-side direction by a method such as extrusion molding. The locking portion 52 is a resin portion having an arrow-shaped cross section, and is gradually widened from the one end 51E of the hanging member 50 toward the opposite other end 52E.

  When the adjacent skin pieces are sewn together to form the seat cover 6S, the hanging members 50 can be attached between the adjacent skin pieces. Here, since the mounting method of each suspending member 50 is substantially the same, the mounting method of the suspending member 50 will be described using the second skin piece SP2 and the third skin piece SP3 as an example. That is, referring to FIG. 5, after the seam allowance E2 at the left end of the second skin piece SP2 and the seam allowance E3 at the right end of the third skin piece SP3 are overlapped in a middle table shape, the other ends of the hanging member 50 are further laid on both seam allowances E2, E3. 52E side is piled up. Then, the seam allowances E2 and E3 are sewn together with the suspending member 50 at the suture line SEW. In this way, while the second skin piece SP2 and the third skin piece SP3 are sewn together, the suspending member 50 can be sewn together and attached to the seam allowances E2, E3 that form the boundary between them.

[Seat pad (first pad part / second pad part)]
With reference to FIG. 2, the seat pad 6P is a member having a substantially rectangular shape as viewed from the front and forming a seat outer shape, and includes a first pad portion 6Pa and left and right second pad portions 6Pb. As will be described later, the seat pad 6P is provided with a pair of boundaries BL1 and BL2, a plurality of groove portions 11 to 13, and a plurality of corner portions C1 to C8. The first pad portion 6Pa is a seat pad portion forming the top plate main portion 6a, and can be formed of, for example, a foamed resin such as polyurethane foam (density: 10 kg / m ^{3 to} 60 kg / m ³ ). The first pad portion 6Pa has a substantially rectangular shape when viewed from the front, but has a narrow center in the up-down direction of the seat, and gradually widens toward the upper end and the lower end. The left and right second pad portions 6Pb are seat pad portions that form the corresponding top plate side portions 6b. The left and right second pad portions 6Pb are harder than the first pad portion 6Pa and can be formed of polyurethane foam having a higher density than the first pad portion 6Pa.

[Boundary]
Then, on the front surface of the seat pad 6P, with reference to FIG. 2, boundaries BL1 and BL2 that divide the first pad portion 6Pa and the left and right second pad portions 6Pb are provided. That is, on the left side of the seat pad 6P, a left boundary BL1 that divides the first pad portion 6Pa and the left second pad portion 6Pb is linearly provided in the seat vertical direction. The left boundary BL1 extends in a curved shape following the left end shape of the first pad portion 6Pa, and is gradually curved leftward toward the upper end and the lower end. Further, on the right side of the seat pad 6P, a right boundary BL2 that divides the first pad portion 6Pa and the right second pad portion 6Pb is linearly provided in the seat vertical direction. The right boundary BL2 extends in a curved shape following the right end shape of the first pad portion 6Pa, and is gradually curved rightward toward the upper end and the lower end.

  Here, the forming method of the seat pad 6P is not particularly limited, but typically, the first pad portion 6Pa and the left and right second pad portions 6Pb can be simultaneously formed. That is, when molding the seat pad 6P, the molding material of the first pad portion 6Pa and the molding material of the left and right second pad portions 6Pb are separately arranged in the cavity of the molding die. By simultaneously foaming and curing each molding material in this state, the seat pad 6P including the first pad portion 6Pa and the left and right second pad portions 6Pb can be molded. When the first pad portion 6Pa and the left and right second pad portions 6Pb are molded at the same time, the molding materials of the respective pad portions are likely to be mixed near the corresponding boundaries BL1 and BL2 of both pad portions.

[Groove]
The plurality of groove portions (first groove portion 11, second groove portion 12, third groove portion 13) are concave portions provided on the front surface of the seat pad 6P with reference to FIG. 2, and are substantially H-shaped in a front view. It is arranged to make. The first groove portion 11 and the second groove portion 12 are portions corresponding to the groove portion of the present invention, and are provided on the front surface of the seat pad 6P so as to be bilaterally symmetrical. That is, the first groove portion 11 extends vertically between the first pad portion 6Pa and the left second pad portion 6Pb. The first groove portion 11 is arranged so as to overlap the left boundary BL1 and is gradually curved to the left as it goes to the upper end and the lower end. The second groove portion 12 extends in the up-down direction between the first pad portion 6Pa and the right second pad portion 6Pb. The second groove portion 12 is arranged so as to overlap the right-side boundary BL2, and is gradually curved rightward toward the upper end and the lower end. The third groove portion 13 is a portion corresponding to another groove portion of the present invention, and extends in the left-right direction so as to cross the first pad portion 6Pa. The left end 13a and the right end 13b of the third groove portion 13 are arranged so as to protrude downward to the corresponding top plate side portion 6b while gradually curving downward toward the tip.

  Here, since the cross-sectional shapes of the respective groove portions 11 to 13 are substantially the same, the details will be described by taking the first groove portion 11 as an example. Referring to FIG. 5, this first groove portion 11 has an opening 11a for retracting the suspending member 50, a bottom wall 11b forming the bottom surface of the first groove portion 11, and a pair of side walls 11c and 11d. .. A left boundary BL1 is arranged substantially in the center of the bottom wall 11b in the left-right direction. The left boundary BL1 is formed on the left side by a second pad portion 6Pb, and the left boundary BL1 is formed on the right side by a first pad portion 6Pa. ing. The left side wall 11c is a wall surface that rises from the left end of the bottom wall 11b toward the opening 11a, and is configured by the second pad portion 6Pb. The right side wall 11d is a wall surface that rises from the right end of the bottom wall 11b toward the opening 11a, and is configured by the first pad portion 6Pa. The pair of side walls 11c and 11d are arranged face to face with an appropriate interval in the left-right direction which is the short direction of the first groove portion 11. With reference to FIG. 2, locking tools 21 to 23 described later are provided at appropriate positions on the bottom wall 11b, and positioning portions 41a to 41c described later are provided at appropriate positions on the side walls 11c and 11d. ing. Note that the second groove 12 is also provided with an opening, a bottom wall, and side walls, and further with reference to FIG. 2, a right boundary BL2 is arranged substantially in the center of the bottom wall.

[Corner]
2, the front surface of the seat pad 6P is divided at appropriate positions by the first groove portion 11 to the third groove portion 13. On the front surface of the seat pad 6P, a plurality of corner portions C1 to C8 are formed by intersecting these groove portions 11 to 13. That is, on the front surface of the first pad portion 6Pa, the groove portions 11 to 13 intersect at appropriate positions to form a pair of upper central corner portions C1 and C2 and a pair of lower central corner portions C3 and C4. ing. The upper central corners C1 and C2 are triangular corners arranged on the left and right ends of the first pad portion 6Pa above the first groove 11, and the lower central corners C3 and C4 are the first groove 11 respectively. It is a triangular corner located below the left and right ends of the first pad portion 6Pa. The pair of upper central corners C1 and C2 and the pair of lower central corners C3 and C4 are relatively soft corners that are configured by the first pad portion 6Pa.

  Further, on the front surface of the second pad portion 6Pb on the left side, the first groove 11 and the left end 13a of the third groove intersect at an appropriate position, so that the upper left corner C5 and the lower left corner corresponding to the corner of the present invention. A side corner C6 is formed. The upper left corner C5 is a triangular corner located at the upper right end of the second pad portion 6Pb, and is located above the left end 13a of the first groove 11. The lower left corner C6 is a triangular corner arranged at the lower right end of the second pad portion 6Pb, and is arranged below the left end 13a of the first groove portion 11. The upper left corner C5 and the lower left corner C6 are relatively hard and sharp corners formed by the second pad portion 6Pb. Then, on the front surface of the second pad portion 6Pb on the right side, the second groove portion 12 and the right end 13b of the third groove portion intersect at an appropriate position, so that the upper right corner C7 and the right corner corresponding to the corner of the present invention. The lower corner portion C8 is formed. The upper right corner C7 is a triangular corner arranged at the upper left end of the second pad portion 6Pb, and the lower right corner C8 is a triangular corner arranged at the lower left end of the second pad portion 6Pb. Is. The upper right corner C7 and the lower right corner C8 are also relatively hard and sharp corners formed by the second pad portion 6Pb.

[Locking tool]
The plurality of locking members 21 to 30 shown in FIG. 2 are members capable of locking the suspending member 50 shown in FIG. 6, respectively, and are provided at appropriate positions of the corresponding groove portions 11 to 13. In this embodiment, two locking members are used to lock one suspending member 50, and these two locking members form a pair and are arranged at appropriate positions of the corresponding groove portions 11 to 13. Has been done. For example, referring to FIG. 3, a first locking member 21 and a second locking member 22 forming a pair are provided on the upper portion of the first groove portion 11, and the pair of locking members 21 and 22 are They are arranged above the third groove portion 13 at appropriate intervals in the vertical direction. Further, a pair of a third locking tool 23 and a fourth locking tool 24 are also provided in the lower portion of the first groove portion 11, and the pair of locking tools 23, 24 are arranged at appropriate intervals in the vertical direction. It is opened and arranged below the third groove 13. Also in the second groove portion 12, with reference to FIG. 2, a plurality of locking members (fifth locking member 25 to eighth locking member 28) are provided so as to be symmetrical with the first groove portion 11. There is. Further, a pair of ninth locking tool 29 and tenth locking tool 30 are provided in the third groove portion 13 excluding both ends 13a and 13b at appropriate intervals in the left-right direction.

  Since the respective locking tools 21 to 30 have substantially the same basic structure, the third locking tool 23 provided in the first groove portion 11 will be described in detail as an example. The third locking tool 23 is a resin member that can be appropriately bent and deformed, and has a leg portion 23a and a pair of arm portions 23b and 23c with reference to FIG. The leg portion 23a is a flat plate portion that is elongated in the extension direction of the first groove portion 11 and is substantially rectangular in a top view, and is integrally embedded in the bottom wall 11b of the first groove portion 11 as shown in FIG. ing. Further, each arm portion 23b (23c) is a substantially inverted J-shaped plate-like portion elongated in the extension direction of the first groove portion 11, and a barb 24a (24b) protruding inward toward the tip side is provided. It is provided. The pair of arm portions 23b and 23c stand up from the leg portion 23a at an appropriate interval in the left-right direction and are exposed from the bottom wall 11b into the first groove portion 11 as shown in FIG. The locking portion 52 of the suspending member 50 can be locked in a sandwiched state between the exposed pair of arms 23b and 23c.

[Positioning part]
The plurality of positioning portions (41a to 41c, 42a to 42c, 43a, 43b) shown in FIG. 2 are portions for positioning the suspending member 50 shown in FIG. 6, respectively, and project into appropriate positions of the corresponding groove portions 11 to 13. It is provided. For example, the third groove portion 13 is provided with a first central positioning portion 43a on the left side and a second central positioning portion 43b on the right side with the ninth locking tool 29 and the tenth locking tool 30 sandwiched therebetween. .. Each of the central positioning portions 43a and 43b crosses the third groove portion 13 in the longitudinal direction and is bridged between the upper and lower side walls.

  In addition, referring to FIG. 2, the first groove portion 11 is provided with the first positioning portion 41a to the third positioning portion 41c on the left side, and the second groove portion 12 is also symmetrical with the first groove portion 11 in the left-right direction. The first positioning portion 42a to the third positioning portion 42c on the right side are provided. The left and right first positioning portions 41a (42a) to third positioning portion 41c (42c) respectively correspond to the positioning portions of the present invention, and the corresponding positioning portions of the alphabet have substantially the same basic configuration. Therefore, the details will be described below by taking the respective positioning portions 41a to 41c on the left side of the first groove portion 11 as an example, and detailed description of the positioning portions 42a to 42c on the right side will be omitted.

  In the first groove portion 11, referring to FIG. 3, a first positioning portion 41a, a second positioning portion 41b, and a third positioning portion 41c are provided in this order from top to bottom at appropriate intervals. There is. The first positioning portion 41 a is provided on the upper end of the first groove portion 11 and is arranged above the first locking tool 21. The first positioning portion 41a is a relatively soft portion that protrudes leftward from the first pad portion 6Pa toward the inside of the first groove portion 11. Further, the second positioning portion 41b is provided between the second locking tool 22 and the third locking tool 23, and is arranged at an intermediate position of the first groove section 11 in the vertical direction. The second positioning portion 41b is a relatively hard portion that protrudes from the lower left corner C6 of the second pad portion 6Pb to the right inside the first groove portion 11. The third positioning portion 41c is provided at the lower end of the first groove portion 11 and is arranged below the fourth locking tool 24. The third positioning portion 41c is a relatively soft portion that protrudes leftward from the first pad portion 6Pa toward the inside of the first groove portion 11.

  And each positioning part 41a-41c is arrange | positioned at the left or right side on the left boundary BL1 in the 1st groove part 11 as a boundary. For example, referring to FIG. 8, the second positioning portion 41b is arranged on the left side of the first groove portion 11 with respect to the left boundary BL1 and is separated from the right side wall 11d by a separation dimension D1. In this way, the second positioning portion 41b formed of the second pad portion 6Pb is arranged in a non-integrated state with respect to the right side wall 11d formed of the first pad portion 6Pa. Further, referring to FIG. 3, the first positioning portion 41a and the third positioning portion 41c are respectively arranged on the right side of the left boundary BL1 in the first groove portion 11 and are separated from the left side wall 11c. In this way, the first positioning portion 41a and the third positioning portion 41c configured by the first pad portion 6Pa are arranged in a non-integrated state with respect to the left side wall 11c configured by the second pad portion 6Pb. ing.

  And each positioning part 41a-41c is integrally comprised by the side wall and bottom wall part which respectively correspond. For example, referring to FIG. 8, the second positioning portion 41b is formed integrally with the left side wall 11c and the left side portion of the bottom wall 11b. Therefore, the second positioning portion 41b can be extended along the left side wall 11c and can be provided higher (larger) in the front-rear direction, which is the depth direction of the first groove portion 11. Here, the height dimension H1 of the second positioning portion 41b is not particularly limited as long as it can contact the suspending member 50. For example, by setting the height dimension H1 of the second positioning portion 41b to be equal to or greater than the arrangement position of the locking portion 52 in the locked state, the movement of the suspending member 50 can be appropriately regulated.

[Seat cover coating work (arrangement work for hanging members)]
Referring to FIG. 1, while covering the seat pad 6P with the seat cover 6S, the hanging members 50 are engaged with each other along with a part of the corresponding seat cover 6S in the respective groove portions 11 to 13 shown in FIG. Stop. Then, each hanging member 50 in the locked state is positioned by the corresponding pair of positioning portions. For example, the suspending member 50 between the first skin piece SP1 and the third skin piece SP3 shown in FIG. 1 is drawn into the upper portion of the first groove portion 11, and the first locking tool 21 and the second locking tool 22 are drawn. Locked in. The suspending member 50 locked to the upper portion of the first groove portion 11 is positioned by the first positioning portion 41a and the second positioning portion 41b on the left side as shown in FIG. Further, the suspending member 50 between the second skin piece SP2 and the third skin piece SP3 shown in FIG. 1 is drawn into the lower portion of the first groove portion 11, and the third locking tool 23 and the fourth locking tool 24 are drawn. Locked in. The suspending member 50 locked to the lower portion of the first groove portion 11 is positioned by the second positioning portion 41b and the third positioning portion 41c on the left side as shown in FIG.

  Similarly, also in the second groove portion 12, the suspending member 50 between the first skin piece SP1 and the fourth skin piece SP4 shown in FIG. 1, and the suspension between the second skin piece SP2 and the fourth skin piece SP4. The member 50 is retracted. Then, as in the case of the first groove portion 11, each suspending member 50 in the second groove portion 12 is locked by the corresponding pair of locking members 25, 26, 27, 28, and further the first positioning portion on the right side. 42a-the 3rd positioning part 42c position. Further, the suspending member 50 between the first skin piece SP1 and the second skin piece SP2 shown in FIG. 1 is drawn into the third groove portion 13. The suspending member 50 in the third groove portion 13 is also locked by the corresponding pair of locking members 29, 30 and further positioned by the central positioning portions 43a, 43b.

  In this way, in this embodiment, the suspending members 50 in the locked state are positioned and arranged in proper positions in the groove portions 11 to 13 by the positioning portions 41a to 41c, 42a to 42c, 43a and 43b. That is, even if the suspended members 50 in the locked state try to be displaced in the extension direction of the corresponding groove portions 11 to 13, they will surely come into contact with any of the positioning portions 41a to 41c, 42a to 42c, 43a, 43b. .. In this way, the movement of each suspending member 50 is regulated by contact with the positioning portions 41a to 41c, 42a to 42c, 43a, 43b, thereby positioning each suspending member 50 at the appropriate position of the corresponding groove portion 11 to 13. Can be placed.

  In the present embodiment, referring to FIG. 2, the boundaries BL1 and BL2 that are the boundaries between the first pad portion 6Pa and the left and right second pad portions 6Pb are provided in the corresponding groove portions 11 and 12 in an overlapping manner. Has been. In this type of structure, the seating performance may be deteriorated due to the mixing of the pad portions 6Pa and 6Pb due to the positioning portions 41a to 41c (42a to 42c) of the groove portions 11 (12). It For example, referring to FIG. 3, the left second positioning portion 41b is arranged at the lower left corner C6 formed of the second pad portion 6Pb. The lower left corner C6 is relatively hard and maintains a sharp shape, but if the relatively soft first pad portion 6Pa is mixed in, the shape may be lost. The first positioning portion 41a and the third positioning portion 41c on the left side are formed of the first pad portion 6Pa and are relatively soft. When the hard second pad portion 6Pb is mixed in the first pad portion 6Pa due to the positioning portions 41a and 41c, the top plate main portion 6a may have a foreign substance feeling and the seatability may be deteriorated. ..

  Therefore, in this embodiment, each of the positioning portions 41a to 41c and 42a to 42c is configured by either the first pad portion 6Pa or the second pad portion 6Pb, and either the first pad portion 6Pa or the second pad portion 6Pb. On the other hand, it is arranged in a non-integrated state. For example, referring to FIG. 3 and FIG. 8, the second positioning portion 41b on the left side is configured by the second pad portion 6Pb and is disposed in the first pad portion 6Pa in a non-integrated state. In this way, the second positioning portion 41b of the lower left corner C6 is not integrated with the first pad portion 6Pa, so that the configuration of the lower left corner C6 defined by the second pad portion 6Pb ( Shape, hardness, etc.) can be suitably maintained. Further, referring to FIG. 3, the first positioning portion 41a and the third positioning portion 41c on the left side are configured by the first pad portion 6Pa and are arranged in a non-integrated state on the second pad portion 6Pb. ing. In this way, the first positioning portion 41a and the third positioning portion 41c are not integrated with the second pad portion 6Pb, so that the first pad portion 6Pa becomes partially hard due to the mixing of the second pad portion 6Pb. Can be suitably prevented. Further, since the respective positioning portions 42a to 42c on the right side of the second groove portion 12 have substantially the same configuration as the respective positioning portions 41a to 41c on the left side of the first groove portion 11, the same effect is exhibited.

  Thus, in the present embodiment, it is possible to prevent the deterioration of the seat performance caused by the mixing of the first pad portion 6Pa and the second pad portion 6Pb due to the positioning portions 41a to 41c and 42a to 42c as much as possible. Further, in the present embodiment, since the positioning portions 41a to 41c and 42a to 42c are not integrated with the corresponding pad portions, the groove portions 11 and 12 can be smoothly spread to the left and right. Therefore, at the time of pulling in each suspending member 50, each suspending member 50 can be smoothly locked to the corresponding locking tool by appropriately expanding the groove portions 11 and 12 to the left and right.

  Further, in this embodiment, each suspending member 50 is stably positioned from both ends by the pair of positioning portions. For example, referring to FIG. 3, the suspending member 50 locked to the upper portion of the first groove portion 11 is positioned by the first positioning portion 41a and the second positioning portion 41b on the left side. At this time, since the second positioning portion 41b is relatively hard, the lower end portion of the suspending member 50 can be stably positioned. In addition, the dimension of the suspending member 50 in the longitudinal direction may be slightly larger due to a design error or the like. In such a case, the suspending member 50 is arranged in the first groove portion 11 while pushing the relatively soft first positioning portion 41a upward, and the upper end portion of the suspending member 50 is positioned by the first positioning portion 41a. I'll do it. At this time, since the first positioning portion 41a is not integrated with the second pad portion 6Pb, the first positioning portion 41a can be smoothly bent upward and pushed away. Also in the lower part of the first groove portion 11, the suspending member 50 can be stably positioned from the upper and lower ends by the relatively hard second positioning portion 41b and the relatively soft third positioning portion 41c. Similarly, also in the second groove portion 12, each hanging member 50 is stably positioned by the first positioning portion 42a to the third positioning portion 42c on the right side.

[Seat back performance]
With reference to FIGS. 1 and 2, in the seat back 6, the top plate main portion 6a is configured by a relatively soft first pad portion 6Pa. By thus softening the top plate main portion 6a, it is possible to improve the seatability for the occupant. At this time, in the first pad portion 6Pa, mixing of the second pad portion 6Pb from the left and right first positioning portions 41a, 42a and the third positioning portions 41c, 42c is avoided. Therefore, in the top plate main portion 6a, it is possible to preferably prevent the occurrence of a foreign body sensation caused by the mixing of the second pad portion 6Pb. Further, the left and right top plate side portions 6b are constituted by a relatively hard second pad portion 6Pb. By thus hardening the left and right top plate side portions 6b, it is possible to firmly support the side of the occupant during cornering and the like. At this time, in the second pad portion 6Pb, mixing of the first pad portion 6Pa from the left and right second positioning portions 41b and 42b is avoided. Therefore, in the left and right top plate side portions 6b, it is possible to preferably avoid the deterioration of the support performance caused by the mixing of the first pad portions 6Pa.

  As described above, in the present embodiment, the borders BL1 and the like and the groove 11 and the like overlap in each of the positioning portions 41a to 41c and the like configured by either the first pad portion 6Pa or the second pad portion 6Pb. In the portion, each suspending member 50 can be positioned in an appropriate place such as the groove portion 11 or the like. Since the positioning portions 41a to 41c and the like are not integrated with the other of the first pad portion 6Pa and the second pad portion 6Pb, the positioning portions 41a to 41c and the like cause the first pad portion 6Pa and the first pad portion 6Pa. Mixing of the second pad portions 6Pb can be prevented as much as possible. Further, the suspending member 50 can be positioned from both ends by the pair of positioning portions (41a and 41b, 41b and 41c, etc.). At this time, by making the second positioning portion 41b relatively hard, each suspending member 50 can be positioned more stably. Further, in the present embodiment, the second positioning portion 41b and the like are provided in the corner portion C6 and the like formed by the second pad portion 6Pb, and the second positioning portion 41b and the like are in a non-integrated state with the first pad portion 6Pa. It is said that. Therefore, the configuration (shape, hardness, etc.) of the corner portion C6 and the like defined by the second pad portion 6Pb is different as much as possible due to the mixing of the first pad portion 6Pa due to the second positioning portion 41b and the like. Can be stopped. Further, the respective positioning portions 41a to 41c and the like project into the groove portion 11 and the like in a state of being integrated with the side walls of the corresponding groove portion 11 and the like. Therefore, it becomes possible to stably extend the positioning portions 41a to 41c and the like along the side wall and to provide the positioning portions 41a to 41c and the like large in the depth direction of the groove portion 11 and the like, and to position and position the suspending members 50 more reliably. it can. By making the top plate main portion 6a and the top plate side portion 6b different in hardness, the seat performance can be suitably improved. Therefore, according to the present embodiment, the suspending member 50 of the seat cover 6S can be positioned and arranged in each groove portion 11 of the seat pad 6P having partially different hardness while maintaining the seat performance as much as possible. ..

[Modification]
Here, the configuration of the positioning portion may take various configurations in addition to the above configuration. For example, referring to FIG. 9, the seat pad 6P of the present modified example includes a first pad portion 6Pa, a second pad portion 6Pb, a pair of cross-shaped groove portions 14 and 15, a boundary BL3, and a plurality of boundary portions BL3. Positioning parts 45a to 45d are provided. The first groove portion 14 is arranged between the first pad portion 6Pa and the second pad portion 6Pb and extends in the vertical direction. On the bottom wall of the first groove portion 14, a border line BL3 extending vertically is overlapped and arranged. The second groove portion 15 extends in the left-right direction and is arranged so as to straddle both pad portions 6Pa and 6Pb, and intersects the first groove portion 14 in a cross shape. Then, the groove portions 14 and 15 intersect each other in a cross shape, so that the first corner portion C11 is provided at the upper right end of the second pad portion 6Pb, and the second corner portion C12 is provided at the lower right end of the second pad portion 6Pb. Be done. Similarly, the third corner portion C13 is provided at the upper left end of the first pad portion 6Pa, and the fourth corner portion C14 is provided at the lower left end of the first pad portion 6Pa.

  In this modification, the first corner portion C11 is provided with the relatively hard first positioning portion 45a, and the first positioning portion 45a projects into the first groove portion 14. Furthermore, above the first positioning portion 45a, a relatively soft third positioning portion 45c formed of the first pad portion 6Pa is provided on the first positioning portion 45a while protruding into the first groove portion 14. They are arranged vertically next to each other. Then, the lower end portion of the suspending member 50 arranged above the first groove portion 14 can be positioned by the first positioning portion 45a and the third positioning portion 45c which are alternately arranged adjacent to each other. The second corner portion C12 is also provided with a relatively hard second positioning portion 45b, and the second positioning portion 45b projects into the first groove portion 14. Further, below the second positioning portion 45b, a relatively soft fourth positioning portion 45d configured by the first pad portion 6Pa is provided on the second positioning portion 45b while protruding into the first groove portion 14. They are arranged vertically next to each other. Then, the second positioning portion 45b and the fourth positioning portion 45d, which are alternately arranged adjacent to each other, can position the upper end portion of the suspending member 50 disposed below the first groove portion 14. Thus, in this modified example, two types of positioning portions (45a and 45c, 45b and 45d) having different hardness are provided alternately adjacent to each other, so that the corresponding hanging member 50 can be positioned more reliably. .. The two types of positioning portions (45a and 45c, 45b and 45d) having different hardnesses may be arranged adjacent to each other in a separated state or may be arranged adjacent to each other in a contacted state. In this modification, the relatively soft positioning parts (45c, 45d) are arranged close to the suspending member 50, but the relatively hard positioning parts (45a, 45b) are arranged close to the suspending member 50. Good.

  The vehicle seat 2 of the present embodiment is not limited to the above-described embodiment, and various other embodiments can be adopted. In the present embodiment, the configuration (shape, size, hardness, forming position, number of formation, etc.) of each of the positioning portions 41a to 41c is illustrated, but the configuration of each of the positioning portions is not limited. For example, each positioning part can be configured with either the first pad part or the second pad part, all positioning parts can be configured with the first pad part, and all positioning parts can be configured with the second pad part. It can also be configured with. Further, the positioning portion formed of the first pad portion and the positioning portion formed of the second pad portion can be arranged to face each other in the short direction of the groove portion. Further, in the groove portion, at least one of the one end portion and the other end portion of the suspending member can be positioned by the positioning portion. In this case, one positioning portion should be provided for each suspending member. Becomes Further, the positioning portion may be integrated with at least one of the side wall and the bottom wall. Further, the positioning portion formed of one pad portion may be arranged apart from the other pad portion, or may be arranged in contact with the other pad portion. Further, the end of the positioning portion on the suspending member side may be formed in a planar shape, and the planar end of the positioning portion may be in surface contact with the end of the suspending member. Note that each positioning portion may be disposed in contact with the suspending member in the locked state or may be disposed slightly apart.

  Further, in the present embodiment, the configuration (shape, size, arrangement position, number of formations, etc.) of each of the groove portions 11 to 13 and each of the boundaries BL1 and BL2 is exemplified, but the configuration is not limited to these. For example, the groove portion can be extended in an appropriate direction such as up, down, left, right, front, back, or diagonal direction of the seat, and can take various shapes such as a linear shape, a curved shape, and a bent shape. Further, the cross-sectional shape of the groove can take various shapes in which the suspending member can be arranged. Further, the configuration (shape, size, arrangement position, attachment method to the groove, etc.) of the locking tool provided in the groove can be appropriately changed. Further, the corner portion can be formed by a plurality of groove portions intersecting each other in various shapes such as a cross shape, a T shape, an L shape, and a V shape, and at least one of a relatively hard corner portion and a relatively soft corner portion. A positioning portion can be provided in the. The corners may be omitted from the seat pad, and in this case, the plurality of grooves are arranged without intersecting each other. Further, the boundary may be formed so as to overlap only a part of the groove.

  Further, in the present embodiment, the configuration (shape, dimensions, constituent members, etc.) of the vehicle seat 2 is illustrated, but the configuration of the vehicle seat is not limited. For example, the configurations (shape, size, placement position, number of placements, etc.) of the first pad portion and the second pad portion can be appropriately changed according to the seat configuration. Further, the top plate main portion can be configured by the second pad portion, and the top plate side portion can be configured by the first pad portion. Also, the top main part or the top side can be configured by the first pad part and the second pad part. For example, the upper part of the top main part is configured by the first pad part, and the lower part of the top main part is configured. Can also be configured with a second pad portion. In addition to the seat back 6, the configuration of the present embodiment can be applied to various seat constituent members such as the seat cushion 4 and the headrest 8. Further, the configurations of the present embodiment and the configurations of the modified examples can be appropriately combined. The configuration of the present embodiment can be applied to general vehicle seats such as vehicles and airplanes and trains.

2 Vehicle seat 4 Seat cushion 6 Seat back 8 Headrest 6a Top plate main part 6b Top plate side part 6F Seat frame 6P Seat pad 6S Seat cover 6Pa First pad part 6Pb Second pad part 7P Pad material 7S Back material 11 First Groove (groove of the present invention)
11a Opening 11b Bottom walls 11c, 11d Side wall 12 Second groove (groove of the present invention)
13 Third Groove (Other Groove of the Present Invention)
13a Left end 13b of third groove portion Right end 21-30 of third groove portion Locking tools 41a-41c Positioning portion of first groove portion (positioning portion of the present invention)
42a-42c Positioning part of the second groove part (positioning part of the present invention)
43a, 43b Positioning part 50 of the third groove part 50 Suspension member 52 Locking parts C1 to C5, C7 Corner part C6 Lower left corner part (corner part of the present invention)
C8 lower right corner (corner of the present invention)
SEW Suture lines SP1 to SP4 First skin piece BL1 Left boundary BL2 Right boundary

Claims (7)

A seat pad made of foam resin, a groove portion provided on the surface of the seat pad, a positioning portion protruding into the groove portion, a seat cover covering the surface of the seat pad, and attached to the seat cover. Provided with a hanging member,
In a vehicle seat in which the suspension member is mounted in the groove portion, the movement of the suspension member in the extension direction of the groove portion is restricted by contact with the positioning portion,
The seat pad has a first pad portion and a second pad portion that is harder than the first pad portion, and at least one of linear boundaries separating the first pad portion and the second pad portion. The portion extends in the same direction as the groove portion while overlapping the groove portion,
The positioning portion provided in a portion where the boundary portion and the groove portion are overlapped with each other is configured with one of the first pad portion and the second pad portion, and is different from the one. A vehicle seat arranged in a state where it is not integrated with either one of the one pad portion and the second pad portion.   The vehicle seat according to claim 1, wherein the positioning portion includes the second pad portion. As the positioning portion provided in a portion where the boundary and the groove portion overlap, a first positioning portion capable of abutting on one end portion of the hanging member in the extension direction of the groove portion, and the one Is provided with a second positioning portion capable of contacting the other end of the hanging member located on the opposite side,
The vehicle seat according to claim 1 or 2, wherein at least one of the first positioning portion and the second positioning portion is configured by the second pad portion.   A corner portion formed by intersecting the groove portion and another groove portion is provided on the surface of the seat pad, and the positioning portion projects from the corner portion into the groove portion. The vehicle seat according to any one of 3 above.   The groove portion has a bottom wall in which a locking tool capable of locking the suspending member is arranged, and a side wall standing upright from the bottom wall toward the opening of the groove portion, the positioning portion, The vehicle seat according to claim 1, wherein the vehicle seat projects from the side wall into the groove.   6. The positioning part formed of the first pad part and the other positioning part formed of the second pad part are provided adjacent to each other in the extension direction of the groove part. The vehicle seat according to any one of items. The seat pad has a top main portion provided at the center in the width direction of the seat, and a top side portion protruding to the seating side at the side of the top main portion,
The vehicle seat according to any one of claims 1 to 6, wherein the top main portion is formed of the first pad portion and the top side portion is formed of the second pad portion. ..

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