JP4028455B2 - Vehicle seat device - Google Patents

Description

  The present invention relates to a vehicle seat device, and particularly to a highly convenient vehicle seat device.

In recreational vehicles, convenience is improved by enabling various seat arrangements. For example, when the seat is provided at the boundary between the lower floor and the upper floor, the front leg portion that is foldable at the front of the seat cushion is connected to the lower floor, and the upper floor is connected to the rear of the seat cushion. There is disclosed a hook that can be attached to and detached from the engaging portion, and that the seat can be stored on the lower floor by removing the hook from the engaging portion while the seat is folded and rotating the front leg portion. (For example, refer to Patent Documents 1 and 2).
JP 2000-108745 A JP 2001-47911 A

  In the apparatus disclosed in the above-mentioned patent document, when the seat is not used, the seat can be folded and dropped onto the lower floor so that the rear upper floor can be flattened. The degree of freedom was low.

  Accordingly, an object of the present invention is to provide a vehicle seat device that has a high degree of freedom when a seat is used, that is, when an occupant is seated, and that can further improve convenience.

In order to achieve the above object, the invention according to claim 1 is directed to a front leg portion (for example, the embodiment) at a lower portion of a seat cushion (for example, the seat cushion 29 in the embodiment) of a seat (for example, the front row seat 15 in the embodiment). The front leg portion 33) and the rear leg portion (for example, the rear leg portion 35 in the embodiment) are attached, and the front leg portion is attached to the rail of the lower floor (for example, the lower floor 18 in the embodiment) (for example, the rail 23 in the embodiment). The rear leg portion is detachably attached to the engaging portion of the lower floor (for example, the striker 27 in the embodiment) and foldable on the seat cushion side, and the seat is used in front. The front leg that stands up from the front position of the rail when the seat cushion is in the position And the rear portion of the seat cushion is supported by the rear leg portion that is engaged with the engaging portion of the lower floor and rises, while the front portion of the seat cushion is positioned when the seat is in the rear use position. The rear part of the seat cushion is supported by the front leg part rising from the rear part position of the rail and the rear leg part is removed from the engaging part of the lower floor and folded. Supported by the upper floor 19) in the embodiment ,
The upper floor is provided with a storage recess (for example, the storage recess 17 in the embodiment) at a position below the seat cushion of the seat in the rear use position, and a seat cushion (for example, the seat cushion in the embodiment). 51) a seat back (for example, the seat back 52 in the embodiment) is folded and stored in the storage recess, while the seat back stands up from the storage recess and is in a use state. A retractable seat 16) according to the embodiment is provided .

  According to the first aspect of the present invention, the front portion of the seat cushion is supported by the front leg portion that rises from the front position of the rail of the lower floor, and the rear portion of the seat cushion is engaged with the engaging portion of the lower floor and then rises. The seat is used with the front use position supported by the legs and the front part of the seat cushion supported by the front legs rising from the rear position of the rail of the lower floor and the rear legs removed from the engaging part of the lower floor and folded. Since it can be used in the rear use position where the rear part of the cushion is supported by the upper floor higher than the lower floor, even if it is the boundary position between the lower floor and the upper floor, the seat position is changed before and after use, that is, the passenger Can be seated. Therefore, the degree of freedom when using the seat, that is, when the passenger is seated can be increased, and the convenience can be further improved.

Also, the front use position where the front part of the seat cushion is supported by the front leg part that rises from the front part of the rail of the lower floor and the rear part of the seat cushion is supported by the rear leg part that is engaged by the engaging part of the lower floor When there is a sheet, if a sheet different from this sheet is raised from the storage recess on the upper floor and put into use, both the front and rear sheets can be used.

  An embodiment which is the best mode of the present invention will be described below with reference to the drawings.

  FIG. 1 shows a vehicle 11 to which this embodiment is applied. This vehicle 11 is a so-called two-box type vehicle. This vehicle 11 has a seat arrangement structure in which a front row seat (front seat) 15 is arranged on a floor 12 and a retractable seat 16 that can be stored in a storage recess 17 of the floor 12 is further arranged on the rear side of the front row seat 15. ing.

First, the front row sheet 15 will be described.
As shown in FIG. 2, the lower floor 18 on which the front row seats 15 are arranged is connected to an upper floor 19 that is one step higher on the rear side, and the upper side of the upper floor 19 constitutes a luggage compartment 20. Here, a tailgate 21 that can be opened and closed is provided on the rear side of the upper floor 19.

  A pair of left and right rails 23 are laid along the front-rear direction on the lower floor 18, and sliders 24 are slidable in the front-rear direction. The slider 24 can be fixed at a predetermined front position and a predetermined rear position on the rail 23 by a slide lock mechanism 25. The slide lock mechanism 25 is fixed when the slider 24 is positioned at a predetermined front position. While the slider 24 is automatically locked when positioned at a predetermined rear position, the lock is released by a manual operation on an operation member (not shown).

  The lower floor 18 is formed with a pair of left and right recesses 26 that are recessed downward at an intermediate position in the front-rear direction of the rail 23 in alignment with each other in the front-rear direction. Although not shown, the pair of recesses 26 are provided on the left and right outer sides of the pair of rails 23. A striker (engagement portion) 27 is fixed inside each of the recesses 26. The pair of left and right strikers 27 are also fixed to the lower floor 18 in the longitudinal alignment. Here, each striker 27 has an inverted U shape in which the upper ends are connected to each other after rising from both the left and right sides of the bottom surface of the recess 26.

  The front row seat 15 is provided on the opposite side of the seat cushion 29 of the seat back 30, the seat cushion 29 that mainly supports the occupant of the occupant, the seat back 30 that stands up from the rear portion of the seat cushion 29 and mainly supports the occupant of the back. And a headrest 31 for mainly supporting the rear head of the occupant, and the seat back 30 is folded when the seat back 30 is tilted to the seat cushion 29 side. Further, the headrest 31 is also inclined to the seat cushion 29 side. The seat back 30 can be tilted forward and locked at an arbitrary angle position with respect to the seat cushion 29 by a reclining mechanism 32, and the reclining mechanism 32 is unlocked by a manual operation on an operation member (not shown). It has become so.

  A pair of left and right front legs 33 are attached to the lower front part of the seat cushion 29 of the front row seat 15, and a pair of left and right rear leg parts 35 are attached to the lower rear attachment part 34. The pair of left and right front leg portions 33 are integrally connected via a connecting member 36 along the vehicle width direction, and the pair of left and right rear leg portions 35 are also integrally connected via a connecting member 37.

  The front leg portion 33 is rotatably connected at one end side to the front portion of the seat cushion 29 via a connecting shaft 39 along the vehicle width direction (left-right direction), and is connected at the other end via a connecting shaft 40 along the vehicle width direction. The side is rotatably connected to the slider 24 of the lower floor 18. Here, the front leg portion 33 is automatically locked to the seat cushion 29 by the rotation lock mechanism 41 at a predetermined angular position, and this rotation lock mechanism 41 is unlocked by manual operation to an operation member (not shown). It has come to be. Further, the rotation of the front leg 33 from the predetermined angular position with respect to the slider 24 is restricted by the rotation restricting mechanism 42, and the restriction is released by manual operation of an operation member (not shown). It is like that. The front leg portion 33 can be folded to the seat cushion 29 side by rotating with respect to the seat cushion 29.

  One end side of the rear leg portion 35 is rotatably connected to a mounting portion 34 at the rear portion of the seat cushion 29 via a connecting shaft 44 extending in the vehicle width direction, and the other end side is detachable from the striker 27 of the lower floor 18. Has been. Here, the rear leg portion 35 can be fixed to the striker 27 by a lock mechanism 45. The lock mechanism 45 is automatically locked to the striker 27 by being pushed into the striker 27 from the upper side, but is not shown. The lock is released by manual operation on the operation member. Further, the rear leg portion 35 is automatically locked to the seat cushion 29 by the rotation lock mechanism 46 at a predetermined angular position, and the lock is released by manual operation of an operation member (not shown). It has come to be. The rear leg 35 can be folded to the seat cushion 29 side by rotating with respect to the seat cushion 29.

Next, the operation of the front row seat 15 having the above configuration will be described.
For example, as shown in FIG. 2, in the front row seat 15, the front leg portion 33 is fixed at a predetermined angular position by the rotation lock mechanism 41 so as to extend downward with respect to the seat cushion 29 that is substantially horizontal. The rear leg 35 is fixed by a rotation lock mechanism 46 at a predetermined angular position so as to extend downward, and the slider 24 to which the lower end of the front leg 33 is further coupled is slid and locked at a predetermined front position of the rail 23. It is fixed by the mechanism 25, and the lock mechanism 45 at the lower end of the rear leg 35 is fixed to the striker 27. That is, the front part of the seat cushion 29 is supported by the front leg part 33 rising from the front part position of the rail 23 and the rear part of the seat cushion 29 is supported by the rear leg part 35 that is connected to the striker 27 of the lower floor 18 and is supported. Become. In this state, the seat cushion 29 is fixed to the lower floor 18, and when the seat back 30 is raised, a passenger can be seated. This position is the previous use position of the front row sheet 15.

  On the other hand, as shown in FIG. 3, the lock mechanism 45 is unlocked to remove the rear leg 35 from the striker 27, and the rotation lock mechanism 46 is unlocked to fold the rear leg 35 to the seat cushion 29 side. Further, when the lock of the slide lock mechanism 25 is released and the slider 24 is moved to the predetermined rear position along the rail 23 to be locked again, it extends downward with respect to the seat cushion 29 that is substantially horizontal. Thus, the front leg portion 33 is maintained in a fixed state at a predetermined angular position, and the rear portion of the seat cushion 29 is placed on the upper floor 19 at the attachment portion 34 with the folded rear leg portion 35 interposed therebetween. Placed. That is, the front part of the seat cushion 29 is supported by the front leg part 33 rising from the rear part position of the rail 23 and the rear leg part 35 is removed from the striker 27 of the lower floor 18 and folded, and the rear part of the seat cushion 29 is folded to the lower floor. It is supported by an upper floor 19 higher than 18. In this state, the front leg portion 33 is fixed to the seat cushion 29 by the rotation lock mechanism 41 and the forward movement of the slider 24 is restricted by the rotation restriction mechanism 42. By setting it up, the passenger can be seated. This position is the rear use position of the front row sheet 15. Since the storage recess 17 for storing the retractable seat 16 in a folded state is provided below the seat cushion 29 of the front row seat 15 in the rear use position, the front row seat 15 is positioned at the rear use position. In this case, the retractable sheet 16 needs to be stored in advance (the retracted state of the retractable sheet 16 will be described later).

  Further, as shown in FIG. 4, in the state where it is in the rear use position, the front leg 33 is released from the rotation restriction to the slider 24 by the rotation restriction mechanism 42 and the lock to the seat cushion 29 by the rotation lock mechanism 41. , The front row seat 15 is dropped into the lower floor 18, and the headrest 31 is folded in this state to bring the seat back 30 forward, so that the front row seat 15 becomes flat.

  Here, contrary to the above, from the state where it is dropped onto the lower floor 18, the front leg 33 is rotated with respect to the slider 24 and the seat cushion 29, and the seat cushion 29 is folded through the rear leg 35. Is placed on the upper side of the upper floor 19 to become a rear use position. The slider 24 is slid from the rear use position to a predetermined front position, the rear leg portion 35 is opened and fixed to the striker 27. Position.

Next, the retractable sheet 16 will be described.
As described above, the upper floor 19 higher than this provided on the rear side of the lower floor 18 is provided with the storage recess 17 recessed downward, and the storage seat 16 can be stored in the storage recess 17. ing.

  As shown in FIG. 5, the retractable seat 16 includes a seat cushion 51 that mainly supports the occupant of the occupant, a seat back 52 that stands up from the rear portion of the seat cushion 51 and supports mainly the occupant of the occupant, and a seat of the seat back 52. The headrest 53 is provided on the opposite side of the cushion 51 and supports mainly the back of the occupant. The seatback 52 is folded when the seatback 52 is tilted to the seat cushion 51 side. Further, the headrest 53 is also tilted toward the seat cushion 51 side. The seat back 52 is locked at a predetermined angular position by the rotation lock mechanism 54 with respect to the seat cushion 51, and the rotation lock mechanism 54 is unlocked by a manual operation on an operation member (not shown). It is like that.

  The retractable seat 16 includes a pair of first link arms (link arms) 57 and a second link arm that are rotatably connected so as to intersect with each other by a connecting shaft 56 provided in each intermediate portion along the vehicle width direction. (Link arm) 58 is provided, and one end side of each of the first link arm 57 and the second link arm 58 is engaged with the lower portion of the seat cushion 51. Further, the other end sides of the first link arm 57 and the second link arm 58 are engaged with the storage recess 17. A set of the first link arm 57 and the second link arm 58 is provided on each of the left and right sides of the lower portion of the seat cushion 51.

  The first link arm 57 is rotatably connected at one end side to the lower surface side of the rear portion of the seat cushion 51 via a connecting shaft 60 along the vehicle width direction, and is connected via a connecting shaft 61 along the vehicle width direction. The end side is rotatably connected to the bottom side of the front part in the storage recess 17.

  The second link arm 58 is connected to a slide guide 64 provided on the lower surface of the front portion of the seat cushion 51, and a slide shaft 63 provided on one end side of the second link arm 58 along the vehicle width direction. It is possible to slide back and forth by sliding in a guide groove 65 formed along the front-rear direction formed in 64. Further, the second link arm 58 has a slide shaft 67 provided on the other end side along the vehicle width direction connected to a slide guide 68 provided on the bottom surface of the rear portion of the storage recess 17. It can slide back and forth by sliding in a guide groove 69 formed in the slide guide 68 along the front-rear direction.

  That is, the first link arm 57, the second link arm 58, the seat cushion 51, and the storage recess 17 constitute a four-bar linkage mechanism, and the one end side of the first link arm 57 and the seat cushion 51 rotate to make an even pair. Therefore, the other end side of the first link arm 57 and the storage recess 17 are in a paired relationship, and one end side of the second link arm 58 and the seat cushion 51 are in a slipping pair relationship, so that the second link arm 58 The other end side and the storage recess 17 are connected in a slipping pair relationship, and the first link arm 57 and the second link arm 58 are connected in a turning pair relationship.

  Here, for example, when the slide shaft 63 of the second link arm 58 is positioned at the rear end portion of the guide groove 65, the second link arm 58 is automatically inserted into the guide groove on the slide guide 64 provided on the seat cushion 51. A slide lock mechanism 70 is provided for locking so that the movement with respect to 65 is impossible. The slide lock mechanism 70 is unlocked when an operation member (not shown) is manually operated.

  On the back surface of the retractable seat 16, a foldable floor material 73 is attached that forms a part of the upper floor 19 by closing the opening 72 of the storage recess 17 while being stored in the storage recess 17. .

Next, the operation of the retractable seat 16 having the above configuration will be described.
For example, as shown in FIG. 2, the retractable seat 16 is configured such that the first link arm 57 extends rearward from the connecting shaft 61 provided in the housing recess 17, so that the rear portion of the seat cushion 51 is It is in a state of being positioned at the rearmost and lowermost side. Referring to FIG. 5, at this time, the second link arm 58 also positions the slide shaft 63 at the front portion by the guide groove 65 of the slide guide 64, and the slide shaft 67 at the rear portion by the guide groove 69 of the slide guide 68. By positioning it, it is set as the attitude | position in alignment with the front-back direction, and the front part of the seat cushion 51 is located in the backmost and lower side. In this state, the seat cushion 51 is stored in the storage recess 17 as shown in FIG. In this state, when the seat back 52 is tilted forward with the headrest 53 folded, the headrest 53 and the seat back 53 are also stored in the storage recess 17. At this time, the floor material 73 provided on the back surface of the seat back 53 develops and closes the upper opening 72 of the storage recess 17. This state is the storage state of the retractable sheet 16. When the retractable seat 16 is in the retracted state as described above, the front row seat 15 can be used in both the above-described front use position shown in FIG. 2 and the rear use position shown in FIG.

  Then, when the retractable sheet 16 is to be used, as shown in FIG. 2, the front row sheet 15 is previously positioned at the front use position, and in this state, as shown in FIG. When the arm 57 and the second link arm 58 are raised, the seat cushion 51 rises almost directly in a state of being substantially horizontal and can be used above the storage recess 17 to be able to be used on the slide shaft 63 of the first link arm 57. Is fixed to the slide lock mechanism 70 and put into use. In this state of use, if the seat back 52 is raised, a passenger can be seated. That is, when the first link arm 57 and the second link arm 58 rise from the storage recess 17, the first link arm 57 rises around the connection shaft 61 that is the connection position on the front side of the storage recess 17, and The seat cushion 51 connected to the other end side of the one link arm 57 by the connecting shaft 60 on the rear side is lifted upward. At this time, the second link arm 58 includes a slide shaft 63 on one end side connected to the front portion of the seat cushion 51 so as to be able to slide back and forth, and a slide shaft on the other end side connected to the rear portion of the storage recess 17 so as to be able to slide back and forth. 67 slides back and forth and swings. At this time, since the first link arm 57 is rotatably connected to the front connecting shaft 61 in the storage recess 17, the first link arm 57 and the second link arm 58, that is, the retractable seat 16. Will slightly approach the front side of the housing recess 17. At this time, the front end portion of the seat cushion 51 is aligned with the position of the wall portion 75 at the boundary between the lower floor 18 and the upper floor 19, and as a result, the height of the foot of the retractable seat 16 is increased by the wall portion 75. Secure.

  At the time of storage, contrary to the above, the lock of the slide lock mechanism 70 is released and the first link arm 57 and the second link arm 58 are lowered, so that the seat cushion 51 is lowered while being slightly rearwardly moved into the storage recess 17. In this state, the headrest 53 is folded, the seat back 52 is folded forward, and the floor material 73 on the back of the seat back 52 is developed to close the upper opening 72 of the storage recess 17. Thereby, the luggage compartment 20 becomes flat.

  In addition, when the seat back 52 is moved forward in the use state, the floor material 73 on the back surface of the seat back 52 is laid on the upper side of the seat back 52. Even in this state, the luggage is loaded on the upper side of the retractable seat 16. Can be placed.

  Here, when the seat cushion 51 is in the stored state, the seating surface is leveled and used by the setting of the four-link mechanism configured by the first link arm 57, the second link arm 58, the seat cushion 51, and the storage recess 17. Then, it is also possible to incline the seating surface so that the front side is located on the upper side.

  According to this embodiment described above, the front row seat 15 supports the front part of the seat cushion 29 by the front leg part 33 rising from the front part position of the rail 23 of the lower floor 18 and the rear part of the seat cushion 29 is lower floor. A front use position that is supported by the rear leg portion 35 that is engaged with the 18 strikers 27 and that is supported, and a front leg portion 33 that supports the front portion of the seat cushion 29 from the rear position of the rail 23 of the lower floor 18 and the rear leg portion Since the seat cushion 29 is removed from the striker 27 of the lower floor 18 and folded, the rear portion of the seat cushion 29 can be used in a rear use position in which the upper floor 19 is higher than the lower floor 18, so that the lower floor 18 and the upper floor can be used. Even if it is at the boundary position with 19, the position of the front row seat 15 is changed before and after use, that is, the passenger is seated Door can be. Therefore, the degree of freedom when using the front row seat 15, that is, when the passenger is seated, can be increased, and the convenience can be further improved.

  Further, in the front row seat 15, the front portion of the seat cushion 29 is supported by the front leg portion 33 rising from the rear position of the rail 23 of the lower floor 18, and the rear leg portion 35 is detached from the striker 27 of the lower floor 18 and folded. From the state where the rear portion of the seat cushion 29 is supported by the upper floor 19 higher than the lower floor 18 to the rear use position, when the front leg portion 33 is folded with respect to the slider 24 of the rail 23 and folded to the seat cushion 29 side, The seat 15 can be dropped onto the lower floor 18. Therefore, when the front row sheet 15 is not used, the front row sheet 15 can be folded and dropped onto the lower floor 18 to achieve flattening with the rear upper floor 19.

  Further, in the front row seat 15, the front portion of the seat cushion 29 is supported by the front leg portion 33 rising from the front portion position of the rail 23 of the lower floor 18, and the rear portion of the seat cushion 29 is engaged with the striker 27 of the lower floor 18. When the retractable seat 16, which is different from the front row seat 15, is raised from the storage recess 17 of the upper floor 19 and is in use when in the front use position supported by the rear legs 35 that stand up, both the front and rear seats 15. 16 can be used simultaneously.

  In addition, the retractable seat 16 having a pair of link arms 57 and 58 that are engaged at one end with the lower portion of the seat cushion 51 and engaged at the other end with the accommodating recess 17 and rotatably connected to each other. Accordingly, when the pair of link arms 57 and 58 are raised, the seat cushion 51 is lifted and can be used above the storage recess 17. When 58 is lowered, the seat cushion 51 descends and enters the storage recess 17. As described above, the storage-type seat 16 can be easily switched between use and storage by being guided by the pair of link arms 57 and 58, and rises above the storage recess 17 (almost directly above) during use. The space efficiency can be improved. Moreover, since the storage recess 17 is provided in the upper floor 19 provided on the rear side of the lower floor 18, the height of the foot cushion 51 can be secured by the height of the upper floor 19, so that the seat cushion 51 is lifted to the use state. Therefore, the link arms 57 and 58 can be made small.

  Moreover, the retractable seat 16 is configured such that when the pair of link arms 57 and 58 rises from the storage recess 17, one first link arm 57 is rotatably connected to the front portion in the storage recess 17. It approaches the front side of the storage recess 17. Therefore, since the retractable seat 16 can be disposed above the front side of the retractable recess 17, for example, when the tailgate 21 is disposed on the rear side of the retractable seat 16 in use, Interference can be prevented.

  Specifically, when the pair of link arms 57, 58 rises from the storage recess 17, the retractable seat 16 rises around the connection position on the front side of the storage recess 17 when one of the first link arms 57 rises. The seat cushion 51 whose rear side is connected to the other end of the first link arm 57 is lifted upward. At this time, the other link arm 58 swings back and forth with one end side slidably connected to the front portion of the seat cushion 51 and the other end side slidably connected to the rear portion of the storage recess 17. To do. Thereby, work such as partial attachment / detachment of the retractable seat 16 is not required when the seat cushion 51 is switched between rising and lowering. Therefore, use of the retractable sheet 16 and switching of storage can be performed more easily.

  In the embodiment described above, the front row seat 15 of the vehicle and the retractable seat 16 disposed on the rear side thereof can be applied to any row of seats.

1 is a side sectional view schematically showing a vehicle to which a vehicle seat device of an embodiment of the present invention is applied. BRIEF DESCRIPTION OF THE DRAWINGS It is a sectional side view which shows the vehicle seat apparatus of the Example of this invention, Comprising: The front row seat in a front use position and the stowable seat in a stowed state are shown. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view showing a vehicle seat device according to an embodiment of the present invention, showing a front row seat in a rear use position and a retractable seat in a stored state. BRIEF DESCRIPTION OF THE DRAWINGS It is a sectional side view which shows the vehicle seat apparatus of the Example of this invention, Comprising: The front row seat in the depression state and the stowable seat in the accommodation state are shown. BRIEF DESCRIPTION OF THE DRAWINGS It is a sectional side view which shows the vehicle seat apparatus of the Example of this invention, Comprising: The front row seat in the front use position and the retractable seat in use condition are shown.

Explanation of symbols

15 Front row seat (sheet)
16 Retractable seat (another seat)
17 Storage recess 18 Lower floor 19 Upper floor 23 Rail 24 Slider 27 Strike (engagement section)
29 Seat cushion 33 Front leg 35 Rear leg

Claims (1)

A front leg portion and a rear leg portion are attached to a lower portion of a seat cushion of the seat, the front leg portion is slidably supported on a rail of a lower floor, and the rear leg portion is detachable from an engaging portion of the lower floor and Foldable on the seat cushion side,
When the seat is in the front use position, the front portion of the seat cushion is supported by the front leg portion rising from the front position of the rail, and the rear portion of the seat cushion is engaged with the engagement portion of the lower floor. While supporting with the rear legs standing up
When the seat is in the rear use position, the front part of the seat cushion is supported by the front leg part rising from the rear part position of the rail, and the rear leg part is detached from the engaging part of the lower floor and folded. In the state, the rear portion of the seat cushion is supported on an upper floor higher than the lower floor ,
The upper floor is provided with a storage recess at a position below the seat cushion of the seat in the rear use position, and is stored in the storage recess in a folded state in which a seat back is stacked on the seat cushion. On the other hand, another vehicular seat device is provided that can be lifted and lowered from the storage recess to be used .

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