JP6477308B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat.

  In the vehicle seat, a slide rail is attached to the seat cushion, and the front end of the slide rail is rotatably attached to the vehicle floor, and the seat cushion is folded up on the seat cushion so that the seat cushion stands up against the floor. There is something that can be made. Patent Document 1 discloses a so-called tumble sheet that is a sheet of this type. In the vehicle seat described in Patent Document 1, a cushion pad that is a cushion material is placed on a cushion frame, and a cushion cover that is a skin material is placed thereon. The upper rail of the slide rail is attached to the cushion frame at a narrow interval that allows the end portion of the cushion cover to pass therethrough.

JP 2006-298098 A

  In the technique described in Patent Document 1, the lower surface of the seat cushion (the surface facing the floor at the seat use position) can be visually recognized by the standing and turning operation of the vehicle seat. Was avoiding. Here, since the lower surface corner portion of the seat cushion is difficult to hide with a shield member or the like, an extension portion is provided on the seat cover terminal, and the front end is locked to the seat frame with a hook or a hog ring to cover the corner portion. Thereby, it can be avoided that a part of the cushion pad is seen from the gap of the shield member or the like and the appearance is deteriorated. However, there is a problem that the distance between the cushion rail and the upper rail of the slide rail is very narrow, and it is difficult to pass the extension portion of the seat cover terminal there. In addition, since the tip of the extension is locked to the seat frame by a hook or hog ring, there is a problem that the number of parts increases.

  In view of such a problem, an object of the present invention is to provide a vehicle seat that can be erected and rotated with respect to a floor together with a slide rail. An object of the present invention is to provide a vehicle seat that can perform an increase in the number of parts.

  A first invention of the present invention is a vehicle seat, comprising a rectangular frame-shaped cushion frame, a cushion pad placed on the cushion frame, and a cushion cover placed on the cushion pad. The two opposing sides of the cushion frame are attached at a distance enough to allow the cushion cover to be inserted into a pair of slide rails, one end of which is rotatably attached to the floor. It is formed so as to be able to stand and rotate with respect to the floor, and is located at the end of the cushion cover and corresponding to the corner portion of the cushion frame along the seat outer surface of the slide rail in the direction opposite to the seating surface A first extension extending toward the longitudinal direction of the slide rail along the seat inner surface of the slide rail A second extension portion extending toward the central portion is provided, and the first extension portion is formed to have higher rigidity than the second extension portion by reinforcing at least a tip portion thereof, and the second extension portion includes the first extension portion. A locking hole is provided through which a part of the extension part is passed and held, and the tip part of the first extension part is passed through the gap between the slide rail and the cushion frame, inside the seat of the slide rail, The second extending portion is held through the locking hole.

  According to the first invention, since the first extension is reinforced at least at the tip thereof and is more rigid than the second extension, the cushion cover between the slide rail and the cushion frame is inserted. It is easy to insert into a narrow gap that can be removed. In addition, since the first extension portion is inserted and held in the locking hole of the second extension portion, other parts such as a hook and a hog ring for locking to the cushion frame are not required. Can be suppressed.

  According to a second aspect of the present invention, in the first aspect, the locking hole of the second extension portion is a slit, and the distal end portion of the first extension portion is engaged with a peripheral edge of the slit. An engagement portion that functions as a stopper is provided.

  According to the second aspect of the invention, the portion of the cushion cover that corresponds to the corner portion of the cushion frame is prevented from coming off by engaging the engaging portion of the first extending portion with the peripheral edge of the slit of the second extending portion. Is held against the cushion frame. As a result, the cushion cover terminal portion can be held more securely with respect to the cushion frame.

  According to a third aspect of the present invention, in the first aspect or the second aspect, a surface opposite to the seating surface of the cushion frame is covered with a carpet, and the first extension portion and the second extension portion are The carpet material is the same as that of the carpet.

  According to the third aspect of the present invention, when the vehicle seat is rotated upright, the first extension portion or the second extension portion is provided from the gap between the corner portions of the carpet covering the surface opposite to the seating surface of the cushion frame. Even if the part is visible, it is the same material, so it doesn't stand out and the appearance is hard to deteriorate.

1 is a perspective view of an automobile seat according to an embodiment of the present invention. It is a disassembled perspective view of the seat cushion of the vehicle seat which concerns on the said embodiment. It is a perspective view which shows the lower surface corner part of the seat cushion of the vehicle seat which concerns on the said embodiment. The 1st extension part and 2nd extension part before engagement are shown. It is a perspective view which shows the lower surface corner part of the seat cushion of the vehicle seat which concerns on the said embodiment. A first extension and a second extension are shown in engagement. It is a perspective view which shows the lower surface corner part of the seat cushion of the vehicle seat which concerns on the said embodiment. The 1st extension part and 2nd extension part after engagement are shown. It is a perspective view which shows the whole lower surface of the seat cushion of the vehicle seat which concerns on the said embodiment.

  1 to 6 show an embodiment of the present invention. The present embodiment is an example in which the present invention is applied to an automobile seat. In each figure, each direction of the automobile when the automobile seat 1 is attached to the floor F of the automobile is indicated by an arrow. In the following description, the description regarding the direction is made based on this direction.

  As shown in FIG. 1, the vehicle seat 1 of the present embodiment is a vehicle rear seat, and includes a seat cushion 2, a seat back 3, and a headrest 4. A lower end portion of the seat back 3 is attached to the rear end portion of the seat cushion 2 via a recliner (not shown), and the angle of the seat back 3 can be adjusted with respect to the seat cushion 2. The seat back 3 is held in an upright position with respect to the seat cushion 2 when the automobile seat 1 is in use. The seat back 3 is configured to be folded to the seat cushion 2 side in conjunction with an operation of releasing a release lever (not shown) provided on the seat cushion 2. Since the seat back 3, the headrest 4, the recliner, and the release lever have known configurations, the description thereof will be omitted, and the seat cushion 2 will be described. Here, the automobile seat 1 corresponds to the “vehicle seat” in the claims.

  As shown in FIG. 2, the seat cushion 2 is mounted on the cushion frame ASSY 10 and the cushion frame ASSY 10 that are attached to the floor F so as to be pivotable in the vertical direction around the front pivot shaft. A cushion pad 20 that is a cushion material and a cushion cover 30 that is a skin material that is put on the cushion pad 20 are provided.

  The cushion frame ASSY 10 is mounted on and supports the cushion pad 20, the cushion frame 11 is movable in the front-rear direction with respect to the floor F, and is pivoted up and down around the front pivot axis. And a slide rotation mechanism 12 that supports the slide rotation mechanism 12. The cushion frame 11 is formed in a rectangular frame shape along the outer peripheral shape of the seat cushion 2 in a top view. Specifically, the cushion frame 11 includes a side frame 11a made of a long steel plate extending in a pair of left and right front and rear directions, a front pipe 11b provided between the front end portions of the side frame 11a, and a side frame. 11a, and a rear pipe 11c provided between the rear portions of 11a. Each side frame 11a has a shape in which the upper edge portion and the lower edge portion thereof are bent to the outside of the seat to increase the strength against bending and twisting, and is formed as a portion to be attached to the upper rail of the slide rail. . A lower arm 11d that supports the seat back 3 so as to be rotatable in the front-rear direction via a recliner (not shown) is attached to the rear upper end of each side frame 11a. Between the upper surface portions of the side frames 11a and between the upper surface portions of the front pipe 11b and the rear pipe 11c, a wire 11e that supports a surface opposite to the seating surface of the cushion pad 20 is disposed. A cover hook engaging portion 11f extending in the front-rear direction is provided outside the seat at the lower end of each side frame 11a. The cover hook locking portion 11f has a cross section for locking a resin hook (not shown) having a substantially J-shaped cross section provided at the lower end portion of the left and right side hook portions 33 of the cushion cover 30 described later. It is a substantially L-shaped long member.

  The slide rotation mechanism 12 includes a pair of slide rails 12a extending in the front-rear direction, a bracket 12b attached to the front end of each slide rail 12a, a lock mechanism 12c attached to the rear end of each slide rail 12a, It has. The slide rail 12a includes a lower rail 12a1 that is attached to the bracket 12b and the lock mechanism 12c, and an upper rail 12a2 that is slidably fitted to the lower rail 12a1. Rolling members such as balls and rollers for smooth sliding are disposed between the lower rail 12a1 and the upper rail 12a2. The bracket 12b supports the front end of the lower rail 12a1 by a rotating shaft 12b1 that is fixed to the floor F and is provided near the upper end and extends in the left-right direction. The left and right pivot shafts 12b1 are arranged on a coaxial line, and the left and right lower rails 12a1 can be tilted up and down with respect to the floor F in a state parallel to the front-rear direction. The lock mechanism 12c is attached at its upper end to the rear end of the lower rail 12a1 so as to be pivotable in the front-rear direction, and engages with a striker (not shown) disposed on the floor F and extending in the left-right direction. A possible hook (not shown) is provided. This hook is configured to move in and out by the operation of the release lever described above. Thereby, it is possible to switch between an engagement lock state in which the hook is engaged with the striker and a release state in which the hook is removed from the striker. In the state where the lock mechanism 12c is engaged and locked to the striker, the cushion frame ASSY 10 can be made unable to stand up and rotate. The upper part of the locking mechanism 12c and the upper part of the bracket 12b are connected to each other by a link member 12d so as to be rotatable. As a result, when each slide rail 12a is erected around the rotation shaft 12b1, the lock mechanism 12c is folded in the direction of the lower rail 12a1 and does not protrude from the surface opposite to the seating surface of the cushion frame ASSY10. Since the interlock mechanism of the lock mechanism 12c, the release lever, and the link member 12d is a known mechanism, detailed description thereof is omitted.

  The cushion frame ASSY10 is formed by attaching the side frames 11a to the upper rails 12a2 of the pair of slide rails 12a. At this time, the side frame 11a with respect to the upper rail 12a2 has a clearance enough to allow the cushion cover 30 to pass therethrough, that is, a cushion frame having a clearance about 1 to 2 times the thickness of the cushion cover 30 as front and rear ends. 11 corner parts are formed and attached.

  As shown in FIG. 2, the cushion pad 20 is a member made of urethane foam and having a substantially rectangular shape when viewed from above. The cushion pad 20 includes a main portion 21 that supports a seated person's buttocks and a lower surface portion of the thigh, and a bank portion 22 that supports a seated person's buttocks and a side surface of the thigh. A horizontal groove 21a extending in the left-right direction is provided at the center in the front-rear direction of the main portion 21, and is divided into a front main portion 21A on the front side of the horizontal groove 21a and a rear main portion 21B on the rear side of the horizontal groove 21a. The bank portion 22 has a shape projecting toward the direction perpendicular to the seating surface on both the left and right sides of the main portion 21. A longitudinal groove 21 b extending in the front-rear direction is provided at the boundary between the main portion 21 and the bank portion 22. Wires (not shown) for pulling and fixing a hanging cotton cloth (not shown) of a cushion cover 30 to be described later are inserted into the bottom portions of the horizontal grooves 21a and the vertical grooves 21b.

  As shown in FIG. 2, the cushion cover 30 is formed by integrally sewing a surface material such as a fabric or leather (including a cushion material such as a urethane slab material or a laminated base fabric such as a nonwoven fabric) by sewing. Is a member formed in an open bag shape. The cushion cover 30 includes a top plate main portion 31 that covers the seating surface side of the main portion 21 of the cushion pad 20, a top plate side portion 32 that covers the seating surface side of the bank portion 22, and a front surface portion and a rear surface portion of the cushion pad 20. And a hook portion 33 that covers the left and right side portions, and an extension portion 34 that extends downward from the lower end portion of the hook portion 33. The top plate main portion 31, the top plate side portion 32, and the stile portion 33 are formed of a skin material such as cloth or leather, and the extension portion 34 is formed of a needle punch carpet.

  The top plate main portion 31 is divided into a front top plate main portion 31A and a back top plate main portion 31B at a substantially central portion in the front-rear direction. The front top plate main portion 31A and the back top plate main portion 31B are joined by a horizontal sewing portion 31a extending in the left-right direction, and a hanging cotton cloth (not shown) is attached to the surface opposite to the seating surface by integral sewing. ing. The side sewing portion 31 a is formed at a position corresponding to the lateral groove 21 a of the cushion pad 20 when the cushion cover 30 is put on the cushion pad 20. The top plate main portion 31 and the left and right top plate side portions 32 are connected by a vertical sewing portion 31b extending in the front-rear direction, and a hanging cotton cloth (not shown) is integrally sewn on the surface opposite to the seating surface. Installed. The vertical sewing portion 31 b is formed at a position corresponding to the vertical groove 21 b of the cushion pad 20 when the cushion cover 30 is put on the cushion pad 20. A resin hook (not shown) having a substantially J-shaped cross section for locking and fixing to a cover hook locking portion 11f provided on the cushion frame 11 is provided at the lower end of the hook portion 33 covering the left and right side portions. ) Is provided.

  The extension portion 34 includes a corner extension portion 34a provided at both front corner portions, a front extension portion 34b provided between the corner extension portions 34a and integrated with the corner extension portion 34a, and a rear extension portion 34c. Is provided. An insertion portion 34a1 is provided at a position corresponding to the front-rear direction center of the side surface portion of the cushion cover 30 of the corner extension portion 34a slightly forward (in the direction opposite to the seating surface). Moreover, the insertion part 34a2 is provided in the lower end part corresponded to the front part of the cushion cover 30 side surface part of the corner extension part 34a toward back (direction with the insertion part 34a1). As shown in FIG. 3, the insertion part 34a1 has an arrow-like shape in which the base of the triangular part 34a12 having an isosceles triangle is connected to the tip of the band part 34a11. The bottom part of the triangular part 34a12 is longer than the width of the belt part 34a11, and the bottom part protruding from the belt part 34a11 in a hook shape is formed as the engaging part 34a13. The triangular portion 34a12 is integrally formed by sewing in a state where the carpets are overlapped double, and has a higher rigidity than the general portion. The inserted portion 34a2 is a band-shaped member, and when it is disposed rearward from the front end portion of the slide rail 12a along the inner surface of the seat of the slide rail 12a, the inserted portion 34a2 extends in the front-rear direction at a position corresponding to the inserted portion 34a1. Is provided. The length of the slit 34a21 is set slightly longer than the length of the bottom side of the triangular portion 34a12 of the insertion portion 34a1. The front extension 34b is a member that extends downward (in the direction opposite to the seating surface) from the lower end of the front portion 33 of the seat front portion, and the width in the left-right direction is substantially equal to the top plate main portion 31. A resin hook member 34b1 having a substantially J-shaped cross section for locking to the surface opposite to the seating surface of the cushion frame ASSY 10 is attached to the tip of the front extension 34b. The rear extension 34 c is a member that extends downward from the lower end of the hook 33 on the rear surface of the seat, and the width in the left-right direction is substantially equal to that of the cushion cover 30. A resin hook member 34c1 having a substantially J-shaped cross section for locking to the surface opposite to the seating surface of the cushion frame ASSY 10 is attached to the tip of the rear extension 34c. Here, the insertion portion 34a1, the insertion portion 34a2, and the slit 34a21 respectively correspond to “first extension portion”, “second extension portion”, and “locking hole” in the claims.

  With reference to FIGS. 2-6, the effect of this embodiment is demonstrated with the procedure of attaching the cushion cover 30 to the cushion frame ASSY10 which mounted the cushion pad 20. FIG. As shown in FIG. 2, with the cushion pad 20 placed on the cushion frame 11 of the cushion frame ASSY 10, a cushion cover 30 with the opening facing downward from above is placed. Then, the suspended cotton cloth of the horizontal sewing portion 31a is inserted into the wire inserted into the bottom surface of the lateral groove 21a of the cushion pad 20, and the suspended cotton fabric of the vertical sewing portion 31b is inserted into the wire inserted into the bottom surface of the vertical groove 21b of the cushion pad 20. Suspend and fix by means such as hoggling. Next, a resin hook having a substantially J-shaped cross section provided at the lower end portion of the hook portion 33 covering the left and right side portions is locked and fixed to the cover hook locking portion 11f provided on the cushion frame 11. . Next, as shown in FIG. 3, the insertion portion 34a2 of the corner extension portion 34a is disposed rearward from the front end portion of the slide rail 12a along the right side surface (surface inside the seat) of the slide rail 12a. . Then, the insertion portion 34a1 is inserted from the tip of the triangular portion 34a12 into the gap between the upper rail 12a2 and the cushion frame 11 toward the right side (toward the inside of the seat). Here, the triangular portion 34a12 is integrally formed by sewing in a state in which the carpets that are the materials are doubled, and since the rigidity is higher than that of the general portion, a narrow gap between the upper rail 12a2 and the cushion frame 11 is formed. Easy to pass through and good workability. Then, as shown in FIG. 4, the triangular portion 34a12 of the insertion portion 34a1 is inserted into the slit 34a21 of the insertion portion 34a2 so as to face upward from below (toward the seating surface). Then, as shown in FIG. 5, the engagement portion 34a13 is partially engaged with the peripheral edge of the slit 34a21 while the triangular portion 34a12 passes through the slit 34a21. Accordingly, the insertion portion 34a1 and the insertion portion 34a2 are held so as not to be easily detached from the cushion frame ASSY 10 without using other parts such as hooks and hog rings. Next, as shown in FIG. 6, a shield 13 for hiding the main part of the slide rotation mechanism 12 is attached. Then, the resin hook member 34b1 whose front extension 34b has a substantially J-shaped cross section is locked and fixed to the cushion frame 11, and the rear extension 34c has a substantially J-shaped resin hook 34c1. Lock to the cushion frame 11 and fix. At this time, even if a part of the insertion part 34a1 or the insertion part 34a2 can be seen from the gap in the front corner part of the rear extension 34c that covers the surface opposite to the seating surface of the cushion frame 11, it looks the same because it is the same material. It is hard to worsen.

  As mentioned above, although specific embodiment was described, this invention is not limited to those external appearances and structures, A various change, addition, and deletion are possible in the range which does not change the summary of this invention. For example, the following can be mentioned.

1. In the above embodiment, the extension 34 of the cushion cover 30 is formed by a needle punch carpet. However, the present invention is not limited to this, and cloth, synthetic leather, nonwoven fabric, or the like may be used, or the same cloth, leather, or the like as the top plate main portion 31, the top plate side portion 32, and the stile portion 33 may be used.

2. In the above embodiment, the insertion portion 34a1 has an arrow shape in which the base of the triangular portion 34a12 having an isosceles triangle is connected to the tip of the strip portion 34a11. However, the present invention is not limited to this, and the triangular portion may have a right triangle shape, or may have an isosceles trapezoidal shape with a tip portion of an isosceles triangle cut. Furthermore, the end of the belt-shaped portion 34a11 may be a rectangle or a circle, and the materials may be overlapped to overlap each other. The double overlapping portion may be integrated by sewing, or may be developed after passing through the slit 34a21 of the belt-like portion 34a11 without sewing. In addition, in order to increase the rigidity of the insertion portion 34a1, another resin plate may be superimposed.

3. In the said embodiment, although this invention was applied to the seat cushion of the seat of a motor vehicle, you may apply not only to this but to a seat back. Furthermore, the present invention may be applied to a seat mounted on an airplane, a ship, a train, or the like.

1 Car seat (vehicle seat)
2 Seat cushion 10 Cushion frame ASSY
11 Cushion frame 12a Slide rail 20 Cushion pad 30 Cushion cover 34a Corner extension 34a1 Insertion part (first extension part)
34a11 Band-shaped part 34a12 Triangular part 34a13 Engagement part 34a2 Insertion part (second extension part)
34a21 Slit (Locking hole)
F floor

Claims (2)

A vehicle seat,
A rectangular frame-shaped cushion frame, a cushion pad placed on the cushion frame, and a cushion cover placed on the cushion pad;
The two opposite sides of the cushion frame are attached to a pair of slide rails, one end of which is rotatably attached to the floor, with an interval that allows the cushion cover to be inserted therethrough. It is formed to be able to stand up and rotate,
A portion of the end of the cushion cover corresponding to a corner portion of the cushion frame includes a first extension portion extending in a direction opposite to the seating surface along the seat outer surface of the slide rail, and the slide rail. A second extension extending along the inner surface of the seat toward the longitudinal center of the slide rail is provided,
The first extension portion is reinforced with at least a tip portion to be more rigid than the second extension portion, and the second extension portion is a latch that is held through a part of the first extension portion. A hole is provided, and the tip of the first extension is passed through the gap between the slide rail and the cushion frame and is passed through the locking hole of the second extension on the inside of the seat of the slide rail. Is retained ,
The locking hole of the second extension part is a slit, and the tip part of the first extension part is a triangle that is an engaging part that engages with the periphery of the slit and functions as a retainer. A vehicle seat provided with a shape portion or an isosceles trapezoidal shape portion . 2. The vehicle according to claim 1, wherein a surface of the cushion frame opposite to a seating surface is covered with a carpet, and the first extension portion and the second extension portion are formed of the same carpet material as the carpet. Sheet.

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