JP4013858B2 - Storage structure for vehicle seat - Google Patents

Description

  The present invention belongs to a technical field related to a vehicle seat storage structure in which a seat is folded and stored in a storage recess of a vehicle body floor.

Conventionally, as this type of sheet storage structure, for example, one disclosed in Patent Document 1 is known. In this structure, a seat (for example, a second rear seat in the third row) having a seat cushion and a seat back having a lower end connected to a rear end of the seat cushion via a knuckle is configured to be foldable. That is, the upper end portion of the knuckle attached and fixed to the rear end portion of the seat cushion is attached to the lower end portion of the seat back so as to be rotatable about an axis extending in the left-right direction of the seat (vehicle width direction). The seat back is folded by moving it forward toward the seat cushion. The seat cushion is connected to the vehicle body floor at a rear end portion thereof via a hinge shaft extending in the left-right direction of the seat, and is configured to be rotatable around the hinge shaft. A storage recess is formed in the vehicle body floor at the rear of the seat, and the seat cushion is seated in the storage recess by rotating the seat around the hinge shaft from the use state to the folded state. It stores so that it may be located above. In this stowed state, the bottom surface of the seat cushion is flush with the vehicle body floor to form a large luggage compartment, which makes it possible to load a large load and improve usability.
Japanese Patent Laid-Open No. 10-119613

  However, the storage structure of the conventional example requires a relatively large space behind the seat for rotating the seat in the folded state. Therefore, when storing the second rear seat in the third row, the seat It is difficult to reduce the distance between the rear hatch door and the rear hatch door provided at the rear of the seat, and the storage recess is unnecessarily large. is there. In particular, there is a possibility that the seat back at a position away from the hinge shaft in the folded state may interfere with the rear hatch door, the side wall of the storage recess, etc., and the distance between the seat and the rear hatch door, etc. and the storage recess increase accordingly. It is difficult to reduce the size of the device.

  The present invention has been made in view of such points, and the object of the present invention is to provide a storage recess on the vehicle body floor at the rear of the seat by rotating the seat around the hinge axis in the folded state as described above. In storing, the seat structure is devised to reduce the space for turning the seat as much as possible so that the vehicle can be downsized.

  In order to achieve the above object, according to the present invention, a knuckle for connecting a seat cushion and a seat back is attached to the seat cushion and the seat back so as to be rotatable about an axis extending in the left-right direction of the seat. When the seat is in a folded state, the back can be moved relative to the seat cushion in the longitudinal direction of the seat cushion by the knuckle.

  Specifically, in the first aspect of the invention, the seat cushion includes a seat cushion and a seat back having a lower end portion connected to the rear end portion of the seat cushion via a knuckle, and the seat back is tilted forward toward the seat cushion side. A seat configured to be foldable, a hinge shaft that extends in the left-right direction of the seat and rotatably connects the seat cushion to the vehicle floor, and a storage recess formed in the vehicle floor at the rear of the seat The vehicle is made to be retractable so that the seat cushion is positioned above the seat back in the storage recess by rotating the seat from the use state to the folded state and turning about the hinge shaft. Target the storage structure of the sheet.

  The knuckle is attached to the seat cushion and the seat back so as to be rotatable about an axis extending in the left-right direction of the seat, and when the seat is in a folded state, the seat back of the seat is The knuckle is configured to be movable relative to the seat cushion in the front-rear direction of the seat cushion.

  With the above configuration, when the seat is in the folded state, if the relative position of the seat back with respect to the seat cushion is set to the rear, the hinge shaft normally provided at the rear portion of the seat cushion and the front side of the seat cushion are positioned. The distance from the end, that is, the turning radius of the sheet is reduced, and the rotation space is reduced. Thereby, the space | interval of a sheet | seat and the rear hatch door provided behind this sheet | seat can be made small. Moreover, the position of the side wall on the opposite side to the seat among the side walls facing the seat front-rear direction in the storage recess can be brought closer to the seat. On the other hand, in the state where the relative position of the seat back to the seat cushion is in the rearward position, the end portion of the seat back on the rear side of the seat cushion immediately before the completion of the storage of the seat in the storage recess, Of these, there is a possibility of coming into contact with the side wall of the seat. However, in the present invention, even if the end portion of the seat back that is located on the rear side of the seat cushion comes into contact with the seat side wall of the storage recess, the seat back moves relative to the seat cushion to the front side of the seat cushion. The sheet can be stored in the storage recess. As a result, the length of the storage recess in the front-rear direction of the seat can be reduced to the same extent as the length of the seat cushion in the front-rear direction or the length of the seat back in the use state of the seat. The arrangement space for parts increases.

  According to a second aspect of the invention, in the first aspect of the invention, when the seat is in a folded state, the relative position of the seat back of the seat cushion in the front-rear direction of the seat cushion is on the rear side of the predetermined position. Further, immediately before the seat is stored in the storage recess, an end portion of the seat back located on the rear side of the seat cushion is in contact with the seat side wall of the storage recess, and the seat is Later, it is assumed that the seat back of the seat is stored in the storage recess while moving relatively to the front side of the seat cushion with respect to the seat cushion.

  By this, by rotating the seat in a state where the relative position of the seat back to the seat cushion is behind the predetermined position until the seat back contacts the seat side wall of the storage recess, The rotational space can be reduced and the seat back can be prevented from interfering with the rear hatch door, etc., while the end of the seat back located behind the seat cushion abuts against the seat side wall of the storage recess. After that, since the seat back moves relative to the seat cushion relative to the front side of the seat cushion, there is no need to shift the position of the seat side wall of the storage recess to the front side of the seat until the seat back does not contact. Further, even if the sheet side wall of the storage recess is inclined so as to be easily press-formed, the upper end position of the sheet side wall can be made substantially the same position as the case where the sheet side wall is not inclined.

  In the invention of claim 3, in the invention of claim 1 or 2, when the seat is in use, the rear end portion of the seat cushion of the seat overlaps the storage recess in plan view, and the hinge shaft is It is assumed that the seat cushion is disposed at an intermediate position between the seat cushion rear end of the seat in use and the seat side wall of the storage recess.

  As a result, the distance between the seat and the rear hatch door can be further reduced, and the storage recess can be made the minimum size for storing the seat.

  As described above, according to the storage structure for a vehicle seat of the present invention, the knuckle that connects the seat cushion and the seat back rotates about the axis extending in the vehicle width direction with respect to the seat cushion and the seat back, respectively. When the seat is in the folded state, the seat back can be moved relative to the seat cushion in the longitudinal direction of the seat cushion by the knuckle, so that the seat can be folded around the hinge axis. Thus, even if a structure for storing in the storage recess of the vehicle body floor at the rear of the seat is adopted, the vehicle can be downsized. Conversely, even if the vehicle size (especially the overall length) is predetermined and the rotation space is small, the seat is folded and rotated around the hinge axis and stored in the storage recess on the vehicle body floor. It is possible to easily adopt a storage structure that does this.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a vehicle 1 to which a storage structure for a vehicle seat according to an embodiment of the present invention is applied. Inside a vehicle compartment 2 of the vehicle 1 is a front side of a vehicle body on a vehicle body floor 3 constituted by a floor panel. The front seat 5, the first rear seat 6 and the second rear seat 7 are provided in three rows in order (the longitudinal direction of each seat coincides with the longitudinal direction of the vehicle body), and the second rear seat 7 in the third row. Corresponds to a sheet in the storage structure. A storage recess 10 for storing the second rear seat 7 is formed in the vehicle body floor 3 at the rear of the second rear seat 7 (the rear of the vehicle body). A rear hatch door 11 is provided behind the second rear seat 10 so as to sandwich the storage recess 10 together with the second rear seat 10 in the longitudinal direction of the vehicle body. As shown in FIG. 2, the rear hatch door 11 includes a door inner panel 11 a and a door outer panel 11 b, and a rear window glass 12 is disposed on the upper part of the rear hatch door 11.

  In FIG. 1, 15 is a front wheel, 16 is a rear wheel, 17 is an instrument panel, 18 is a steering wheel, and 19 is a rear bumper.

  As shown in FIG. 3, the bottom wall 10a, the vehicle body front side wall 10b (the side wall on the second rear seat 7 side), and the vehicle body left and right side walls 10c, 10d of the storage recess 10 are integrally formed with the floor panel. The bottom wall 10a extends in a substantially horizontal direction, and the vehicle body front side wall 10b and the vehicle body left and right side walls 10c, 10d are inclined outward from the recess toward the recess opening side so as to facilitate press molding. On the other hand, the vehicle body rear side wall 10e (side wall opposite to the second rear seat 7) of the storage recess 10 is disposed on the vehicle body front side of the rear bumper 19, and the rear end panel inner 20a and the rear end panel outer 20b as shown in FIG. The rear end panel 20 is composed of the rear end panel inner 20a. A striker 21 for the rear hatch door 11 is disposed at the upper end of the rear end panel inner 20a. A cover member 22 is fixed to the rear end panel inner 20a so as to cover the front side of the vehicle body of the striker 21. In order to provide the striker 21 in this way, the rear end panel inner 20a and the cover member 22 protrude to the inside of the storage recess 10. A silencer 25 for reducing exhaust noise is disposed below the vehicle body floor 3 on the vehicle body front side of the vehicle body front side wall 10b of the storage recess 10 (see FIG. 2).

  As shown in FIG. 2, the second rear seat 7 has a seat cushion 7a, and a lower end portion via a knuckle 31 (provided on the left and right sides of the seat (see FIG. 3)) at the rear end portion of the seat cushion 7a. And a headrest 7c removably attached to the upper end of the seatback 7b.

  One end (the seat cushion 7a side end) of the knuckle 31 is attached to the rear end of the seat cushion 7a so as to be rotatable around a first shaft 32 extending in the seat lateral direction (vehicle width direction). The other end (the end on the side of the seat back 7b) is attached to the lower end of the seat back 7b so as to be rotatable about a second shaft 33 that extends in the left-right direction of the seat. By attaching the knuckle 31 to the seat back 7b, the seat back 7b rotates about the second shaft 33 with respect to the knuckle 31 and can be moved forward toward the seat cushion 7a. The second rear seat 7 is folded by the forward movement of the seat back 7b (see the two-dot chain line in FIG. 2). The headrest 7c is removed from the seat back 7b before the second rear seat 7 is folded from a use state in which a passenger can be seated.

  As shown in FIG. 3, a hinge shaft 35 is fixed to the bottom surface of the rear portion of the seat cushion 7 a so as to extend in the left-right direction of the seat and to connect the seat cushion 7 a to the vehicle body floor 3. Both end portions of the hinge shaft 35 are pivotally supported by bearing members 36 and 36 that are fixedly mounted on the upper surface of the vehicle body floor 3 at the left and right side portions of the storage recess 10. As a result, the second rear seat 7 is rotatable around the hinge shaft 35. Then, the second rear seat 7 is turned from the use state to the folded state and rotated to the back side of the seat back 7b around the hinge shaft 35, so that the seat cushion 7a is placed above the seat back 7b in the storage recess 10. It can be stored to be located.

  An engagement portion 37 (see FIG. 2) that engages with a striker (not shown) provided on the vehicle body floor 3 is formed at the front end portion of the seat cushion 7a of the second rear seat 7. The second rear seat When 7 is in use, the second rear seat 7 cannot be rotated around the hinge shaft 35 due to the engagement between the striker and the engaging portion 37, and the engagement is released when the second rear seat 7 is rotated. To do.

  When the second rear seat 7 is in use, the rear end portion of the seat cushion 7a of the second rear seat 7 overlaps the vehicle body front side portion (second rear seat side portion) of the storage recess 10 in plan view. That is, the vehicle body front side wall 10 b of the storage recess 10 is positioned on the front side of the seat (the front side of the vehicle body) with respect to the rear end of the seat cushion 7 a of the second rear seat 7. The hinge shaft 35 is disposed at an intermediate position between the rear end of the seat cushion 7a of the second rear seat 7 in the use state and the vehicle body front side wall 10b of the storage recess 10.

  The seat back 7b of the second rear seat 7 is configured to be movable relative to the seat cushion 7a in the front-rear direction by the knuckle 31 when the second rear seat 7 is in a folded state. That is, as described above, the knuckle 31 is attached to the seat cushion 7a and the seat back 7b so as to be rotatable about the first shaft 32 and the second shaft 33, respectively. Seat cushion 7a seating surface in the front-rear direction of the seat cushion 7a with respect to the seat cushion 7a by the rotation about the first shaft 32 relative to the seat and the rotation about the second shaft 33 relative to the knuckle 31 of the seat back 7b. Can be relatively moved along (see FIG. 4).

  Although the relative position of the seat cushion 7a in the front-rear direction with respect to the seat cushion 7a of the seat back 7b indicated by a two-dot chain line in FIG. 4 is the same position as when the second rear seat 7 is completely stored in the storage recess 10 (see FIG. 6). At this position, when the second rear seat 7 is rotated around the hinge shaft 35 to the back side of the seat back 7b (clockwise in FIG. 4), an arc R1 (centered on the hinge shaft 35) indicated by a two-dot chain line in FIG. As can be seen from the arc), the end of the seat back 7b located on the front side of the seat cushion 7a (the upper end of the seat back 7b when the second rear seat 7 is in use) covers the rear hatch door 11 and the striker 21. Since it contacts the cover member 22, it cannot be stored in the storage recess 10 as it is.

  Therefore, after the headrest 7c is removed and the seat back 7b is moved forward to the seat cushion 7a side to make the second rear seat 7 folded, the relative position of the seat back 7b with respect to the seat cushion 7a in the front-rear direction is determined. It is set behind the position when the storage is completed (predetermined position). In this embodiment, as can be seen from the arc R2 (the arc centered on the hinge shaft 35) indicated by a broken line in FIG. 4, when the second rear seat 7 is rotated about the hinge shaft 35, the seat back 7b is seated. The end portion located on the front side of the cushion 7a is set to a position where the rear hatch door 11 and the cover member 22 are not in contact with each other (the position of the seat back 7b shown by a solid line in FIG. 4) or to the rear side position.

  As can be seen from the arc R3 indicated by the alternate long and short dash line in FIG. 4, when the second rear seat 7 is rotated around the hinge shaft 35, the front end of the seat cushion 7a slightly contacts the rear hatch door 11 or the cover member 22. Although the front end of the seat cushion 7a is very flexible, the seat cushion 7a is deformed even if the seat cushion 7a comes into contact. Therefore, the second rear seat 7 can be sufficiently rotated, and the rear hatch door 11 and the cover member 22 is not damaged.

  When the second rear seat 7 is rotated around the hinge shaft 35 in a state where the relative position of the seat cushion 7a in the front-rear direction with respect to the seat cushion 7a of the seat back 7b is rearward of the position at the time of completion of the storage as described above. As shown in FIG. 5, immediately before the second rear seat 7 is stored in the storage recess 10, the end portion of the seat back 7b located on the rear side of the seat cushion 7a (the seat when the second rear seat 7 is in use) The lower end portion of the back 7b comes into contact with the vehicle body front side wall 10b of the storage recess 10.

  However, in this embodiment, the seat knuckle 31 allows the seat back 7b to move relative to the seat cushion 7a in the front-rear direction of the seat cushion 7a. Therefore, the end of the seat back 7b positioned on the rear side of the seat cushion 7a. The seat back 7b moves relative to the seat cushion 7a to the front side of the seat cushion 7a (moves rearward with respect to the vehicle body) after the portion abuts against the vehicle body front side wall 10b of the storage recess 10. Is rotated around the hinge shaft 35 and stored in the storage recess 10 (see FIG. 6). In this storage completed state, the bottom surface of the seat cushion 7a is flush with the top surface of the vehicle body floor 3, so that a wide cargo space is formed on the rear side of the first rear seat 6. In addition, the relative position with respect to the seat cushion 7a of the seat back 7b shown by the two-dot chain line in FIG. 6 is the same position as the seat back 7b shown by the solid line in FIG.

  In order to change the second rear seat 7 from the retracted state to the in-use state, the seat cushion 7a is lifted by gripping a gripping recess (not shown) provided on the bottom surface thereof. As a result, the second rear seat 7 rotates about the hinge shaft 35 toward the bottom surface of the seat cushion 7a (counterclockwise in FIG. 6). At this time, the seat back 7b is seated on the seat cushion 7a with its own weight. The relative movement to the rear side results in the state shown in FIG. Thereafter, the operation may be performed in the opposite order to the operation at the time of storage.

  Therefore, in the above-described embodiment, the knuckle 31 that connects the seat cushion 7a and the seat back 7b of the second rear seat 7 has the first shaft 32 extending in the left-right direction of the seat and the seat cushion 7a and the seat back 7b, respectively. The seat back 7b is pivotably mounted around the second shaft 33, and can be moved relative to the seat cushion 7a in the front-rear direction by the knuckle 31 when the second rear seat 7 is folded. Thus, when the second rear seat 7 is stored in the storage recess 10, the relative position of the seat back 7b relative to the seat cushion 7a in the front-rear direction from the start of rotation of the second rear seat 7 to immediately before the storage is completed. To the rear of the storage completion position, While the end portion of the seat back 7b located on the rear side of the seat cushion 7a is brought into contact with the vehicle body side wall 10b of the storage recess 10, the seat back 7b is moved relative to the seat cushion 7a toward the front side of the seat cushion 7a. 2 The rear seat 7 can be stored in the storage recess 10. As a result, the turning radius of the second rear seat 7 (the distance between the hinge shaft 35 and the end of the seat back 7b located on the front side of the seat cushion 7a) can be reduced, and the turning space can be reduced. The distance between the rear seat 7 and the rear hatch door 11 or the cover member 22 can be reduced. Further, the position of the vehicle body front side wall 10b of the storage recess 10 does not have to be shifted to the front side of the seat to a position where the seat back 7b does not contact. Moreover, there is no problem even if the vehicle body front side wall 10b of the storage recess 10 is inclined and the lower part enters the recess. As a result, the length in the front-rear direction of the storage recess 10 (the length in the front-rear direction of the vehicle body) can be reduced to the same extent as the length in the front-rear direction of the seat cushion 7a or the length of the seat back 7b in the seat usage state. As a result, a sufficient space for the silencer 25 to be disposed on the vehicle body front side of the vehicle body front side wall 10b of the storage recess 10 can be secured. Therefore, it is possible to reduce the size of the vehicle (particularly, shorten the longitudinal length).

  In the above embodiment, the present invention is applied to the second rear seat 7 in the third row, but the present invention can be applied to any seat.

  The vehicle seat storage structure of the present invention forms a luggage compartment integrated with the floor by folding the seat and storing it in the storage recess of the vehicle body floor, such as a car such as a wagon or RV car. It is useful for such a vehicle.

It is the figure seen from the vehicle side which shows roughly the whole vehicle to which the storage structure of the vehicular seat concerning the embodiment of the present invention is applied. It is sectional drawing which expands and shows the rear part of a vehicle. It is the disassembled perspective view which looked at the storage recessed part and the seat cushion of the 2nd rear seat from the vehicle body back side. FIG. 3 is a view corresponding to FIG. 2 showing a folded state of the second rear seat. FIG. 3 is a view corresponding to FIG. 2 showing a state in which the seat cushion of the second rear seat is in contact with the front side wall of the storage recess. FIG. 3 is a view corresponding to FIG. 2 showing a state in which the second rear seat is stored in the storage recess.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle 3 Car body floor 7 2nd rear seat 7a Seat cushion 7b Seat back 10 Storage recessed part 10b Car body front side wall (seat side wall)
31 Knuckle 32 First shaft 33 Second shaft 35 Hinge shaft

Claims (3)

A seat cushion, a seat back having a lower end connected to the rear end of the seat cushion via a knuckle, and a seat configured to be foldable when the seat back is tilted forward toward the seat cushion; A hinge shaft extending in the left-right direction of the seat and pivotally connecting the seat cushion to the vehicle body floor, and a storage recess formed in the vehicle body floor at the rear of the seat, the seat being folded from the use state A vehicle seat storage structure in which the seat cushion can be stored in the storage recess so that the seat cushion is positioned above the seat back by rotating around the hinge axis in a state.
The knuckle is attached to the seat cushion and the seat back so as to be rotatable around an axis extending in the left-right direction of the seat,
The seat structure for a vehicle, wherein the seat back of the seat is configured to be movable relative to the seat cushion in the longitudinal direction of the seat cushion by the knuckle when the seat is in a folded state. . The storage structure for a vehicle seat according to claim 1,
When the seat is in a folded state, when the relative position of the seat cushion in the front-rear direction with respect to the seat cushion of the seat back is on the rear side of the predetermined position, immediately before the storage into the storage recess of the seat is completed, The end located on the seat cushion rear side of the seat back comes into contact with the seat side wall of the storage recess,
The vehicle seat is configured such that, after the contact, the seat back of the seat is stored in the storage recess while moving relative to the seat cushion in front of the seat cushion. Storage structure. The storage structure for a vehicle seat according to claim 1 or 2,
When the seat is in use, the rear end portion of the seat cushion of the seat overlaps with the storage recess in a plan view.
The vehicle seat storage structure, wherein the hinge shaft is disposed at an intermediate position between a seat cushion rear end of the seat in the use state and a seat side wall of the storage recess.

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