JP3460982B2 - Underfloor storage seat structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention folds a seat cushion and a seat back into a predetermined storage form, and the seat body in this storage form can be stored in a storage recess on the floor under a specific rotation operation. Underfloor storage seat structure.

[0002]

2. Description of the Related Art For example, a storage seat in which a seat cushion and a seat back can be folded and stored at a predetermined position serves as a luggage compartment and a passenger compartment, or an RV.
Rear seats for automobiles, one-box cars, small multi-purpose cars, etc., mainly the third-row seats (third seats)
Etc. are widely provided. Then, for example, a configuration disclosed in Japanese Utility Model Laid-Open No. 07-028728, which allows the entire seat to be stored in a storage recess on the floor under its rotation, is known as a storage seat of this type.

In the construction disclosed in Japanese Utility Model Laid-Open No. 07-028728, the seat back and the lower end of the seat frame to which the seat cushion is pivotally attached have a pin (hinge) projecting from the floor surface to the tire house. ), That is, it is connected and supported so that it can be tilted backward from a standing posture in which it is in a sitting form. A storage recess for storing a seat is formed in the floor space on the rear side.

According to such an underfloor storage seat, the seat can be stored without leaving a protruding portion into the room, so that it is possible to effectively use the indoor space.

[0005]

[Problems to be Solved by the Invention] Here, the above-mentioned actual Kaihei
According to the configuration of JP-A-07-028728, the entire seat in the storage form is stored in the storage recess on the floor under the tilting of the seat frame centered on the hinge at the lower end, which is arranged in the front position of the storage recess. Therefore, at least a front-rear length corresponding to the vertical length of the storage form is required for the floor space behind the hinge. Further, according to this known configuration, the seating form of the seat is formed on the front surface of the hinge at the front position of the storage recess, which is pulled up from the rear space around the hinge as a center of rotation and then held in the standing posture. Since it is possible, if the position of this hinge is too forward,
There is a possibility that a sufficient seating space with the front row seat cannot be secured.

That is, this known structure is effective in a large vehicle or the like in which a large floor space can be secured before and after the hinge, but is difficult to apply to a small vehicle or the like in which a large front and rear space cannot be secured. Poor adaptability is inevitable.

Further, in this known structure, since the pin protruding from the tire house or the like serves as the hinge of the seat frame, the pin or the bracket on the seat frame side even when the seat body is in the retracted position. It is unavoidable that the stones protrude from the floor and are exposed. Therefore, the appearance quality is likely to be deteriorated during storage.

In this known structure, the seat back and the seat cushion are pivotally attached to the upper end and the lower end of the seat frame, respectively. Then, the seat cushion is folded up in the front space of the seat frame formed by reversing and rotating the seat back upward so that the seat back and the seat cushion are lined up on one plane. Can be formed.

However, in this structure, a separate turning operation for the seat frame, the seat back, and the seat cushion is required both when the seat is stored and when the seat is set, and normally,
Locking and unlocking operations of stoppers are added to these operations, so there are many operation steps during storage and setting, and inferior operability is unavoidable, and the structure of each mechanism is complicated. It is easy to accompany.

Further, in a vehicle provided with an underfloor storage seat of this kind, the storage recess may be formed into two upper and lower stages, the upper stage may be a storage space for the seat body, and the lower stage may be a storage space for spare tires and the like. It has been done from the past. However, since many of the known underfloor storage seats have a shape and a structure that allow the storage space of the seat body to be flipped up, that is, the storage space for a spare tire or the like can be opened, operability during use thereof Inevitably lowers.

An object of the present invention is to provide an underfloor storage seat structure which can be applied to a small-sized vehicle and whose operability can be improved.

It is another object of the present invention to provide an underfloor storage seat structure that enables the flip-up operation regardless of the form of the seat body.

[0013]

In order to achieve this object, according to the present invention, the seat cushion is capable of flipping up and folding facing the seating surface of the seat back, and of the pivotal support at the rear end thereof. Originally connected to the seat back. In addition, a sliding mechanism, in which a movable runner is slidably assembled to the lower rail, is arranged side by side at the left and right positions of the storage recess. A foldable support link, which is a combination of an upper link and a lower link, is erected and pivotally mounted between the seat back side part and the runner front part, while allowing the position to move back and forth within the storage recess. The upper link of the support link can be slid along the seat cushion side,
By connecting to the seat cushion via a predetermined guide means, the rotation of the seat cushion can be interlocked with the rotation of the seat back.

Then, the seat body is moved inside the storage recess of the floor under the fall of the seat back accompanied by the movement of the hinge to the rear of the storage recess by the slide mechanism and the folding of the seat cushion linked to this fall. In addition to enabling the storage in this storage form, a predetermined front position from the hinge position at the time of storage is preliminarily defined as the hinge position in the seated form of the seat body, and the predetermined lock means allows the predetermined front position. The seated seat body can be fixedly set at the corresponding front position under the lock of the runner with respect to the lower rail.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

As shown in FIGS. 1 and 2, in the underfloor storage seat structure 10 according to the present invention, the seat cushion 1
2. A foldable seat body 16, which is a combination of the seat back 14, is supported in a retractable recess 20 formed in the floor surface 18 so as to be movable back and forth via a slide mechanism 22 disposed in the retractable recess. Has been done. Then, the folded form in which the seat cushion 12 is flipped up so as to face the seating surface 14a of the seat back 14, is used as the storage form of the seat body 16.
The underfloor storage seat structure 10 is configured such that the seat back in this storage form, that is, the seat main body can be stored in the storage recess 20 by falling over.

As shown in the drawings, in the embodiment of the present invention, the seat back 14 is formed with a substantially concave storage portion 24 on its seating surface 14a. Then, for example, by the pivotal support of the rear end portion of the seat cushion 12 by the pivot pin 26 arranged in the storage portion 24, the seat cushion has a seated posture shown in FIG. It is connected to and supported by the seat back 14 so as to be rotatable between a storage posture stored in the storage portion shown in FIG. 3, that is, a folding posture.

As shown in FIGS. 1 and 2, the seat body 16 formed by connecting the seat cushion 12 and the seat back 14 to each other is rotatably connected to the slide mechanism 22 in the storage recess 20. Supported.

The slide mechanism 22 is a combination of a lower rail 28 and a runner 30 which is a movable body. For example, assembling the runner to the lower rail with the installation of the freely rotatable rollers 32F and 32R arranged in front and back. Under this condition, this slide mechanism is formed so that the runner can move back and forth with respect to the lower rail. In addition, this slide mechanism 22,
The storage recesses 20 are arranged side by side at left and right positions.

In the present invention, the seat body 16 is connected to and supported by the slide mechanism 22 by pivotally attaching the lower end of the seat back 14 to the rear portion of the runner 30 of the slide mechanism. For example, the lower end of the seat back 14 is pivotally supported by the runner 30 via a protruding support shaft 34, and by using this support shaft as a hinge, the seat back, that is, the seat body 16 is attached to the slide mechanism 22. It can rotate with respect to it.

That is, in the present invention, the seat back 14, that is, the hinge (support shaft) 34 of the seat body 16 is supported by the slide mechanism 22 so as to be movable in the front-rear direction of the storage recess 20.

In the embodiment of the present invention,
The support shaft 34 that serves as a hinge of the seat back 14 is attached to the rear roller 32.
The support shaft (hinge) is also arranged so that it also serves as the rotation shaft of R and penetrates the runner 30 and the roller.

As can be seen from FIGS. 1 and 2, in the present invention, the upper link 36 and the lower link 36
A foldable support link that is a combination of 38
A 40 is erected and pivoted between a side portion of the seat back 14 and a front portion of the runner 30.

The support link body 40 is formed by pivotally connecting one end of the upper link 36 and the lower link 38 with a pivot pin 44, and the other ends thereof are pivotally connected with pivot pins 46 and 47, respectively. The seat back 14 side and runner
It is erected freely between the front and rear of 30 so that it can be extended and folded.

The support link 40 is provided so as to be able to define the seating posture of the seat back 14 under its extension, and, under the folding, in the fall direction (forward fall direction) with respect to the runner 30. The seat back 14 can be securely rotated.

In the embodiment of the present invention,
A pivot pin 47 that pivotally attaches the lower link 38 of the support link to the front portion of the runner 30 also serves as the rotation shaft of the front roller 32F.

In the present invention, the upper link 36 of the support link is slidably connected to the seat cushion along the side portion of the seat cushion 12 through the predetermined guide means 42.

As the guide means 42, for example, a combination of a guide rail 50 fixed to the side portion of the seat cushion 12 and a roller 52 rotatably connected to the upper link 36 can be exemplified. The seat cushion and the upper rails are linked so that they can be interlocked under a rollable interior.

According to this structure, the seat back 14
When the support link body 40 extends due to the upright position, the seat cushion 12 is regulated and supported in its seating posture under the vertical engagement between the guide rail 50 and the roller 52 of the guide means. Since the upper link 36 is slidably connected to the side portion of the seat cushion 12 via the guide means 42, when the seat back 14 is rotated about the hinge 34 in the fall direction, The seat cushion is rotated in association with the corresponding direction, that is, the folding direction, by the rotation of the upper link accompanying the above (see FIG. 3).

In the underfloor storage seat structure 10 of the present invention, the hinge 34 at the lower end of the seatback 14 is a slide mechanism.
Since the inside of the storage recess 20 can be moved in the front-back direction by 22,
As can be seen from FIG. 3, the rear position with respect to the lower rail 28 is the position of the runner 30 in the storage configuration of the seat body 16, that is, the position of the hinge. Then, if the seat back 14 is raised from such a storage form of the seat body 16 at the time of storage, the seat cushion 12 is rotated under the rotation linked to the extension of the support link body 40 from the folded shape. The sitting posture is automatically set (see FIG. 1).

Here, in the present invention, the predetermined front position from the hinge position at the time of storage is defined in advance as the hinge position in the seated state of the seat body 16, and this predetermined hinge position by the predetermined locking means 54 is set. Under the lock of the runner 30 with respect to the lower rail 28, the seated seat body can be fixedly set to the corresponding front position.

As shown in FIGS. 1 and 2, as locking means 54, a latch 56 pivotally attached at one end to the front portion of the runner 30, for example, a pivot pin 47, and fixedly to the lower rail 28,
A combination with a lock hole 58 formed to enable insertion and engagement of the latch can be exemplified in the lock plate 58 arranged integrally, and the lock hole is a hinge position in the seated form of the seat body 16, That is, it is formed according to the front-back position of the runner with respect to the lower rail.

In the embodiment of the present invention,
The slide front limit position of the runner 30 with respect to the lower rail 28,
It is defined as the lock position when the seat body 16 is seated.

As described above, in the underfloor storage seat structure 10 of the present invention, the seat back 14, and thus the hinge 34 of the seat body 16, are movable in the front-rear direction inside the storage recess 20. That is, since the front and rear positions of the hinge 34 of the seat body 16 are not fixed and can be moved as appropriate according to the stored form and the seated form of the seat body, the hinge position in the stored form or the hinge position in the seated form is fixed. It is possible to form the storage recess 20 on the floor surface 18 without being based on it.

As described above, according to the present invention, the storage recess 20 corresponding to the vertical length of the seat body 16 in the storage form is provided.
It suffices if the hinge 34 is formed within the range including the position of the hinge 34 in the stored form or the position of the seated form. No vertical length is required. Then, the position of the hinge 34 in the seated form is defined and set forward from the position of the hinge 34 in the stored form of the seat body 16, and the front position according to the distance from the front row seat is set in the seated form. Since the position of the hinge is enough,
The front space in the seated form of the seat body can be appropriately set regardless of the formation position of the storage recess 20.

In other words, despite being an underfloor storage seat, the width of the rear space can be reduced without reducing the front space in the seated form of the seat body 16, so that it can be used for small vehicles. The underfloor storage seat structure 10 that can be easily applied can be easily provided according to the present invention.

Since the seat cushion 12 can be rotated, that is, accommodated and pulled out, in conjunction with the rotation of the seat back 14, the operability thereof is surely improved.

Further, since the seat back 14 can be rotated while being moved in the front-rear direction, it is possible to easily secure the rotation at a position where it does not interfere with the front or rear members thereof. Therefore, it is possible to sufficiently secure the safety of the seat back 14, and thus the seat body 16, when the seat back 14 is rotated.

Further, since it is sufficient if the lock means 54 is a combination of the latch 56 and the lock hole 60, the structure thereof can be sufficiently simplified. Then, it is sufficient to insert and engage the latch 56 into the lock hole 60 while moving the seat body 16 forward, so that the operability of the lock is also sufficiently improved.

Here, as shown in FIGS. 1 and 2, it is preferable that a lock pin 61 that engages with the lower link 38 of the extended support link from below is provided integrally with the latch 56. . According to such a configuration, the rotation of the latch 56 in the direction of separating from the lock hole 60 is blocked by the engagement of the lock pin 61 and the lower link 38, so that the seat body 16 is seated. The certainty of the lock in the form and thus the safety are further improved.

In addition, as shown in FIGS. 1 and 2, in the embodiment of the present invention, for example, the stopper pin 62 engaged with the lock plate 58 under the circular arc movement around the hinge 34 is provided. The seat back 14 is provided at a lower end of the seat back 14 so that the seat back can be prevented from rotating up to a seated upright posture by engagement of a stopper pin with a lock plate. Then, by providing a notch 64 for ensuring the rotation of the seat back 14 up to the seated upright posture under the insertion of the stopper pin 62 in correspondence with the lock position of the runner 30 by the locking means 54, the seating The seat body 16 can be set to the shape only at the lock position of the runner by the locking means.

According to this structure, the seat back 14 cannot be set in the standing posture at a predetermined front position, that is, at a position other than the locked position of the runner 30 with respect to the lower rail 28 by the locking means 54, so that the seat without locking is seated. The setting of the seating form of the main body 16 is reliably prevented. Therefore,
According to this, the safety of the seat body 16 in the seated form can be easily ensured.

As can be seen from FIGS. 1 and 2,
In the embodiment of the present invention, a predetermined engaging claw 66 is provided on the rear portion of the runner 30, and at the lock position of the runner by the locking means 54, the engaging claw can be inserted and engaged from below. A fitting hole 68 is formed at a corresponding position of the lock plate 58.

In this structure, since the engaging claw 66 is normally disposed at a position separated from the engaging hole 68 and below, the movement of the runner 30 with respect to the lower rail 28 is guaranteed thereby. Then, in an emergency or the like, when the runner 30 is excessively pulled up due to deformation of the lower rail 28,
Upward movement and forward-backward movement of the runner with respect to the lower rail are blocked by the insertion and engagement of the engagement claw 66 in the engagement hole 68. Therefore, according to this configuration, the safety of the emergency can be improved. The securing can be easily performed without complicating the configuration.

Further, in the embodiment of the present invention,
A seat portion 24 having a substantially concave shape is provided on the seating surface side of the seat back 14, and the seat cushion 12 can be folded in the seat portion, but the present invention is not limited to this. For example, the seat portion is provided on the seat back seating surface. Instead, the seat cushion may be simply overlapped with the seat cushion facing the seating surface of the seat back under the flip-up.

However, as in the embodiment of the present invention, the accommodating portion 24 having a substantially concave shape is formed on the seating surface side of the seat back 14.
If the seat cushion 12 can be folded and stored in this storage space, the overall thickness of the seat in the stored form of the seat can be suppressed to the thickness of the seat back. The size of the plane shape is the seat back 14
Since the shape of the seat is not different from that of the seat, it is possible to easily reduce the size of the seat storage form in addition to reducing the size without complicating the structure.

By the way, in the above-described embodiment, the lower rail 28 of the slide mechanism is fixedly arranged in the storage recess 20. However, the present invention is not limited to this. For example, as shown in FIG. 4, the front end portion of the lower rail 28 is pivotally attached to the storage recess 20 via the pivot pin 70, and the left and right lower rails are pivotally attached. By integrally connecting the rear end portions with the connection rod 72 installed and fixed, the slide mechanism 22 can be flipped forward with respect to the storage recess (see the alternate long and short dash line).

In this structure, a predetermined locking means (not shown) formed of, for example, a combination of a latch and a striker, which is interposed and arranged between the rear end of the slide mechanism 22 or the connecting rod 72 and the storage recess 20, is provided. ) Under the lock, the slide mechanism is fixedly arranged in the storage recess. Then, when the lock of the slide mechanism 22 by the lock means is released, the slide mechanism can be flipped up around the pivot pin 72 (see each chain line in FIGS. 4 and 5).

As can be seen from the alternate long and short dash lines in FIGS. 4 and 5, according to this configuration, the slide mechanism 22 and the seat body are integrated in both the stored state and the seated state of the seat body 16. You can get a realistic bounce. That is, when the lower part of the storage recess 20 is used as the spare tire storage portion 74 or the like, the operability thereof can be ensured sufficiently high.

The above-described embodiments are for explaining the present invention, and are not intended to limit the present invention in any way, and all modifications and alterations made within the technical scope of the present invention are also included in this embodiment. Needless to say, it is included in the invention.

[0051]

As described above, according to the underfloor storage seat structure according to the present invention, the hinge of the seat body is movable in the front-rear direction within the storage recess, and the position of the hinge in the storage configuration, or Since the storage recess can be formed on the floor surface without being based on the position of the hinge in the seated form, the width of the rear space of the seat main body in the seated form can be reduced without reducing the front space. Is fully obtained. Therefore, according to the present invention, it is possible to easily provide an underfloor storage seat structure that can be easily applied to a small vehicle or the like.

Further, since the seat cushion can be rotated in conjunction with the rotation of the seat back, the operability thereof is surely improved.

Since the seat back can be rotated while moving in the front-rear direction, it is possible to easily secure the rotation at a position where it does not interfere with the front or rear members thereof. Therefore, it is possible to sufficiently secure the safety of the seat body when the seat body is rotated.

If the lock means is a combination of a latch and a lock hole, the structure can be sufficiently simplified. Further, it is sufficient to insert and engage the latch into the lock hole while moving the seat body forward, so that the operability of the lock is sufficiently improved. Further, the lock pin that engages with the lower link of the extended support link from below is integrally provided on the latch so that the latch pivots in the direction of separating from the lock hole. Since it is blocked under the engagement with the lower link, the certainty of locking the seat body in the seated state, and thus the safety, is further improved.

Further, a stopper pin that engages with the lock plate under circular arc movement around the hinge is provided so as to protrude from the lower end of the seat back, and the seating upright posture is obtained under the insertion of the stopper pin. If the notch that ensures the rotation of the seat back up to is provided corresponding to the lock position of the runner by the locking means, setting of the seat body to the seating form is limited only at the lock position of the runner by the locking means. Can be possible. Therefore, according to this, the safety of the seat body in the seated form can be easily ensured.

Further, a predetermined engaging claw is provided on the rear part of the runner, and an engaging hole is formed so that the engaging claw can be inserted and engaged from below at the lock position of the runner by the locking means.
If it is formed at the corresponding location of the lock plate, the upward movement of the runner with respect to the lower rail and the forward-backward movement in the event of an emergency etc. are blocked under the insertion and engagement of the engaging claws into the engaging holes, so that it can be used in an emergency. It is possible to easily secure the safety in such cases as without complicating the configuration.

Further, the slide mechanism is connected and supported with respect to the storage recess by pivoting the front end of the lower rail in the storage recess, and the rear end portions of the left and right lower rails are installed and fixed. According to the configuration in which the connecting rod integrally connected with the seat body is locked by the predetermined locking means, the slide mechanism and the seat body can be integrally flipped up in any of the retracted form and the seated form of the seat body. Therefore, when the lower part of the storage recess is used as a storage portion for a spare tire or the like, the operability thereof can be sufficiently high.

[Brief description of drawings]

FIG. 1 is a schematic side view of an underfloor storage seat structure according to the present invention in a seated form (a seatback standing posture).

FIG. 2 is a schematic exploded perspective view of an underfloor storage seat structure.

FIG. 3 is a schematic side view of an underfloor storage seat structure in a stored configuration (seatback lying posture).

FIG. 4 is a flip-up operation diagram of the slide mechanism in the storage configuration of the seat body in the underfloor storage seat structure of the present invention.

FIG. 5 is a flip-up operation diagram of the slide mechanism in the seated state of the seat body in the underfloor storage seat structure of the present invention.

[Explanation of symbols]

10 Underfloor storage seat structure 12 seat cushion 14 seat back 16 seat body 20 Storage recess 22 Slide mechanism 28 Lower rail 30 runners 36 Upper link 38 Lower Link 40 Support link body 42 Guide means 54 Locking means 56 latch 60 lock hole 61 lock pin 62 Stopper pin 64 notches 66 Engaging claw 68 Engagement hole 70 Hinge pin (pivot point) 72 Connecting rod 74 Locking means

Claims (5)

(57) [Claims] 1. An underfloor storage seat in which a seat main body including a seat cushion and a seat back is folded into a predetermined storage form and can be stored in a storage recess on the floor surface, wherein the seat cushion is a bounce facing the seating surface of the seat back. The slide mechanism, which can be raised and folded, is connected to the seat back under the pivotal support of its rear end, and has a movable runner slidably assembled to the lower rail, is placed side by side in the storage recess at the left and right positions. By pivotally attaching the lower end of the seat back to the rear part of the runner via a hinge, the front and rear positions of the hinge can be moved back and forth within the storage recess, and a foldable support link that is a combination of the upper link and the lower link. The body is erected and pivoted between the seat back side and the runner front, and the upper link of this support link is The seat cushion is connected to the seat cushion through a predetermined guide means so as to be slidable along the side portion of the seat cushion, so that the rotation of the seat cushion can be interlocked with the rotation of the seat back. Under the seat back with the movement of the hinge, and the folding of the seat cushion linked to this fall,
This storage form can be stored in the storage recess of the floor, and a predetermined front position from the hinge position at the time of storage is defined in advance as the hinge position when the seat body is seated, and the predetermined locking means is used. An underfloor storage seat structure, wherein a seated seat body can be fixedly set to the corresponding front position under the lock of the runner with respect to the lower rail at the hinge position. 2. A combination of a locking means and a latch pivotally attached to the front part of the runner at one end; and a lock hole formed in a lock plate integral with the lower rail to enable insertion and engagement of the latch. 2. The underfloor storage seat structure according to claim 1, wherein a lock pin that is formed as a member and that can be engaged with the lower link of the extended support link from below is integrally provided on the latch. 3. A stopper pin, which is engaged with a lock plate integral with the lower rail under circular arc movement centering on a hinge, is provided at a lower end of a seat back so as to project from the engagement of the stopper pin with the lock plate. The notch that locks the seat back up to the seated upright posture and secures the seatback rotation up to the seated upright posture by inserting the stopper pin. By providing the runner lock position according to
The underfloor storage seat structure according to claim 1 or 2, wherein setting of the seat body to a seated form is possible only at the locked position of the runner by the locking means. 4. A predetermined engaging claw is provided on the rear portion of the runner, and an engaging hole for allowing the engaging claw to be inserted and engaged from below at a lock position of the runner by the locking means is integrated with the lower rail. The movement of the runner with respect to the lower rail can be ensured by forming the engaging claw on the lock plate and arranging the engaging claw at a position away from the engaging hole, and the upward movement of the runner with respect to the lower rail in an emergency can be prevented. The underfloor storage seat structure according to any one of claims 1 to 3, wherein the engagement claw can be inserted into the dowel hole and can be blocked by the engagement. 5. A slide mechanism is connected to the storage recess under pivotal attachment of a front end of the lower rail in the storage recess.
While being supported, between the rear end parts of the left and right lower rails,
The connecting rod is integrally connected by being installed and fixed, and the slide mechanism can be fixedly arranged in the storage recess under the lock of the storage recess by the predetermined locking means. 5. The underfloor storage seat structure according to any one of claims 1 to 4, wherein when the lock is released, the slide mechanism can be flipped up integrally with the seat main body around the pivot point of the lower rail front end.