JP2001010385A - Seat device with auxiliary seat for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an occupant passing through front sides of respective main and auxiliary seats from being disturbed by a turning end part of a seatback of the axiliary seat, so as to allow smooth passing, when the seatback of the auxiliary seat juxtaposed to the main seat is turned inwards to be overlapped on a seat cushion. SOLUTION: A main seat 16 and an auxiliary seat 17 are juxtaposed on a cabin floor. A seatback 25 of the auxiliary seat 17 is made to allow overlapping onto a seat cushion 24 by inward turning A thereof. A turned end part of the seatback 25 is projected frontwards from front ends of a seat cushion 20 and the seat cushion 24 in 'an overlapped condition' hereinbefore. A projected portion 28 of the seat back 25 projected frontwards from the front ends of the seat cushions 20, 24 in αthe overlapped condition' of the auxiliary seat 17 is made to be removable and restorable from/to a portion 29 in a turning center side of the seatback 25.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat device with an auxiliary seat for an automobile, and more particularly, to a main seat and a seat back provided on a side of the main seat so that a seat back can be overlapped with a seat cushion. The present invention relates to a seat device with an auxiliary seat for a motor vehicle having the auxiliary seat and an auxiliary seat.

[0002]

2. Description of the Related Art A conventional seat apparatus with an auxiliary seat for an automobile is disclosed in Japanese Utility Model Laid-Open Publication No. 58-29528.

According to the above publication, a main seat and an auxiliary seat are arranged on the floor of the passenger compartment so as to be lined up with the main seat in the width direction of the main seat. The seat cushion has a “vertical posture” that protrudes upward from the rear end side of the seat cushion. Further, the auxiliary seat has a pivotal support for pivotally supporting a lower end portion of the auxiliary seat to a rear end portion of the seat cushion so that the seat back can be reciprocally pivoted forward and downward.

[0004] The seat back of the auxiliary seat can be superimposed on the seat cushion by its forward rotation, and the end of the auxiliary seat in the "superposed state" in the width direction opposite to the main seat is upward. A pivotal support is provided for pivotally supporting an end of the main sheet side to the main sheet so as to be capable of reciprocating rotation toward the main body.
The auxiliary seat can be turned forward until it becomes the "standing position".

An occupant can be seated on each seat cushion of each seat from the front thereof, and an occupant seated on the seat cushion can be rested on each seat back.

On the other hand, when the auxiliary seat is not used, the upper surface of the seat back can be used as a small baggage holder by setting the auxiliary seat in the above "overlapping state".

When the auxiliary sheet in the "overlaid state" is set in the "standing position", the lateral width of the auxiliary sheet is reduced and the auxiliary sheet is deflected toward the main sheet. A passage is formed on the side of the auxiliary seat opposite to the main seat, and the occupant can smoothly pass through the passage without obstructing the auxiliary seat. The upper end surface of the auxiliary seat in the “standing position” is used as an armrest of an occupant seated on the main seat.

[0008]

By the way, in the above-mentioned prior art, in order that the backrest of the auxiliary seat with respect to the seatback can be made equal to that of the main seat, the seatback in the "vertical posture" of the auxiliary seat is used. There has been proposed an apparatus in which the upper ends are made higher so that the heights of the upper ends of the two seat backs in the "vertical orientation" are substantially the same.

However, if the above-mentioned configuration is adopted, the seat back becomes long, so that when the auxiliary seat is brought into the "overlapping state", the pivoting end of the seat back is at least one of the two seat cushions. It may protrude forward from the front end of one of the seat cushions, in this case, the protruding part of this seat back,
This is not preferable because it may obstruct the occupant trying to pass the front side of each seat in the width direction.

The present invention has been made in view of the above-mentioned circumstances, and has been described in the case where a backrest of an auxiliary seat provided side by side with respect to a seat back is provided so as to be equivalent to that of the main seat. At the time of non-use of the auxiliary seat, when the seat back is rotated forward and superimposed on the seat cushion in the “superimposed state”,
An object of the present invention is to make it possible for smooth turning of the seat back so that the rotating end of the seat back does not obstruct an occupant trying to pass the front side of each seat.

Another object of the present invention is to make it possible to effectively use the auxiliary sheet as a parcel storage or as an armrest when the auxiliary sheet is in the "overlapping state".

[0012]

A seat device with an auxiliary seat for a vehicle according to the present invention for solving the above problems is as follows.

According to the first aspect of the present invention, a main seat 16 and an auxiliary seat 17 are juxtaposed on a vehicle cabin floor 3 as illustrated in all the drawings, and these seats 16 and 17 are provided with seat cushions 20 and 24, respectively. The seat cushions 20 and 24 are provided with seat backs 21 and 25 in a “vertical posture” projecting upward from rear end portions of the seat cushions 20 and 24, and the auxiliary seat 1 is provided.
7 is provided with a pivotal support 26 for pivotally supporting the lower end of the seat back 25 to the rear end of the seat cushion 24 so that the seat back 25 can reciprocately rotate A and B toward the lower front. The heights of the upper ends of the two seatbacks 21 and 25 are made substantially the same, and the seatback 25 of the auxiliary seat 17 can be superimposed on the seat cushion 24 by the forward rotation A. In this “superimposed state”, A seat device with an auxiliary seat for an automobile, wherein a rotating end of the seat back 25 projects forward from a front end of at least one of the seat cushions 20, 24 of the two seat cushions 20, 24,

The projecting portion 28 of the seat back 25 projecting forward from the front end of the one of the seat cushions 20, 24 in the "overlapping state" of the auxiliary seat 17 is moved toward the center of rotation of the seat back 25. Part 29
Withdrawal and restoration.

According to a second aspect of the present invention, as shown in FIG. 7, a main seat 16 and an auxiliary seat 17 are arranged side by side on a vehicle cabin floor 3, and these seats 16, 17 are provided with seat cushions 20, 24, respectively. The seat cushions 20 and 24 are provided with seat backs 21 and 25 in a “vertical posture” projecting upward from rear end portions of the seat cushions 20 and 24, and the auxiliary seat 1 is provided.
7 is provided with a pivotal support 26 for pivotally supporting the lower end of the seat back 25 to the rear end of the seat cushion 24 so that the seat back 25 can reciprocately rotate A and B toward the lower front. The heights of the upper ends of the two seatbacks 21 and 25 are made substantially the same, and the seatback 25 of the auxiliary seat 17 can be superimposed on the seat cushion 24 by the forward rotation A. In this “superimposed state”, A seat device with an auxiliary seat for an automobile, wherein a rotating end of the seat back 25 projects forward from a front end of at least one of the seat cushions 20, 24 of the two seat cushions 20, 24,

The protruding portion 28 of the seat back 25 protruding forward from the front end of the one seat cushion 24 in the “overlapping state” of the auxiliary seat 17.
A fixed portion 28a integrally formed with a rotation center side portion 29 of the seat back 25;
The tip portion 28b is rotatably supported by the fixed portion 28a so that the tip portion 28b can be superimposed on the lower surface of the fixed portion 28a by the rotation. is there.

As shown in FIG. 7, in the third aspect of the present invention, in addition to the second aspect, when the front end portion 28b is overlapped with the lower surface of the fixed portion 28a, the fixed portion 28a Each front surface of the portion 28b has one virtual plane 4 extending vertically in the width direction of each of the sheets 16 and 17.
It is arranged so as to be located substantially above zero.

According to a fourth aspect of the present invention, as shown in all the drawings, in addition to the third aspect of the invention, the "overlapping state"
The end on the main sheet 16 side of the main sheet 1 is moved so that the end side of the auxiliary sheet 17 in the width direction opposite to the main sheet 16 side can reciprocate and rotate C and D upward.
6 is provided with a pivotal support member 35 for pivotally supporting the auxiliary sheet 17 in the "overlaid state" so that the auxiliary sheet 17 can be turned forward A until the auxiliary sheet 17 becomes the "standing posture".

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment)

FIGS. 1 to 5 show a first embodiment.

In FIG. 2, reference numeral 1 denotes an automobile, and an arrow F
r indicates the front of the vehicle 1, and the left and right described below refer to the width direction of the vehicle body 2 of the vehicle 1 toward the front.

The vehicle body 2 is supported on a traveling road surface by front and rear wheels. The vehicle body 2 is made of sheet metal and forms a lower part of the vehicle body floor 3 and extends substantially horizontally, and left and right sides of the vehicle body 2 are formed, and lower ends thereof are formed on the respective sides of the vehicle floor 3. Left and right side walls 4, 4 coupled to the vehicle body 2, and a roof panel constituting an upper portion of the vehicle body 2 and coupled to each upper end of the left and right side walls 4, 4. The interior space of the vehicle body 2 surrounded by the roof panel is a cabin 5.

A door opening 7 is formed midway in the front-rear direction of one (left) side wall 4 of the side walls 4 and 4, and the sliding door 8 which closes the door opening 7 so that it can be opened and closed is provided. It is supported on the outer surface of the side wall 4.

Before and after a passenger (including a passenger) can be seated in the passenger compartment 5, rear seat devices 10 and 11 are provided.
Further, another seat device 12 is disposed further behind the seat device 11. The front seat device 10 includes a pair of left and right seats 14 for a driver and an assistant. The rear seat device 11 includes a pair of left and right main seats 15 and 16 for passengers, and an auxiliary seat 17 provided between the main seats 15 and 16.

Each of the seats 14 to 17 is a vehicle body 2
Of the main seats 15, 16
And the auxiliary sheet 17 are arranged side by side so as to be adjacent to each other on the left and right. In the front-rear direction, the front seat device 10
A passage 18 extending left and right on the passenger compartment floor 3 is provided between the rear seat device 11 and the rear seat device 11. The passage 18 is provided so as to be continuous with the door opening 7.

In FIGS. 1 to 3, each of the main sheets 15,
16 are identical in shape and size to each other, and these main sheets 15, 1
Reference numeral 6 denotes a seat cushion 20 which is supported on the cabin floor 3 via a base 19 and extends substantially horizontally so that an occupant can sit on the seat cushion 20. The seat cushion 20 extends upward from the rear end of the seat cushion 20. A seat back 21 in a "vertical orientation" in which a lower end thereof protrudes and is supported by a rear end side of the seat cushion 20 so that an occupant seated on the seat cushion 20 can be backed;
1 and a headrest 22 attached to the upper end. The main seats 15, 16 are installed at substantially the same position in the front-rear direction and the up-down direction of the vehicle body 2.

The auxiliary sheet 17 includes the two main sheets 1.
A seat cushion 24 which is located between the seat cushions 20 and 20 and extends substantially horizontally so that an occupant can sit on the seat cushion 24; A seat back 25 in a “vertical position” in which an occupant seated on the cushion 24 can be backed, a forward rotation A of the seat back 25 toward the front lower side, and a return rotation B after the forward rotation A A pivoting support 26 is provided for pivotally supporting the lower end of the seat cushion 24 to the rear end of the seat cushion 24 so as to be enabled.

In the above case, each seat cushion 20, 2
The upper surfaces of the seat cushions 4 are substantially flush with each other, and the front ends of the seat cushions 20 and 24 are located at substantially the same position in the front-rear direction. The front surfaces of the seatbacks 21 and 25 are also substantially flush with each other, and the heights of the upper ends of the seatbacks 21 and 25 are substantially the same.

4 and 5, the seat back 25 of the auxiliary seat 17 can be superimposed on the upper surface of the seat cushion 24 by the forward rotation A. In this "superimposed state", the seat back 25 of the seat cushion 24 is The pivot end is
At least one of the two seat cushions 20, 24 protrudes forward from the front end.

The "superimposed state" of the auxiliary sheet 17
The protruding portion 28 of the seat back 25 protruding forward from the front ends of the seat cushions 20 and 24 is formed separately from a portion 29 on the rotation center side of the seat back 25. The projecting portion 28 can be detached from the portion 29 on the rotation center side by the support means 30 (solid line in FIGS. 4 and 5) and can be restored (dotted line in FIGS. 4 and 5). .

The support means 30 is formed at a plurality of (two) support rods 32, 32 protruding from the protruding portion 28, and at a rotation end of the rotation center side portion 29 to support the support rod. A plurality of (two) support holes 33, 33 are provided to support the rods 32, 32 by projecting and removably fitting the protruding ends thereof. When the support rod 32 is fitted into the support hole 33, this fitted state is held by a spring or the like that presses the support rod 32.

When the support rod 32 is separated from the support hole 33, the protruding portion 28 is separated from the rotation center side portion 29 as described above. On the other hand, if the support rod 32 is fitted into the support hole 33, the protruding portion 28 is attached to the rotation center side portion 29 as described above, and the seat back 2
5 is restored to its original shape.

Auxiliary sheet 17 in the above "overlaid state"
Is provided on one of the main sheets 15, 16 (right side).
In the pivotal support 35, an end portion (left end side) opposite to the main sheet 16 side in the width direction (left-right direction) of the auxiliary sheet 17 is directed forward and upward C, and The end (right end) on the main seat 16 side is pivotally supported by the main seat 16 so that the return rotation D can be performed after the rotation C. The auxiliary sheet 17 in the "overlapping state" is allowed to make forward rotation C until the auxiliary sheet 17 becomes a substantially vertical "standing position" (two-dot chain line in FIGS. 4 and 5).

In FIGS. 1-3, each of the sheets 15-1
The seat cushions 20 and 24 in FIG. 7 allow an occupant to be seated from the front thereof, and the seat cushions 20 and 2 are attached to the respective seat backs 21 and 25.
Each of the occupants sitting on the seat 4 can be backed.

On the other hand, as shown in FIGS. 4 and 5, when the auxiliary sheet 17 is not used, the upper surface of the seat back 25 can be used as a parcel storage by setting the auxiliary sheet 17 in the "overlapping state". .

Further, if the auxiliary sheet 17 in the "overlapping state" is set to the "standing posture",
And the right and left width dimension of the main sheet 16 is reduced, and is shifted toward the main sheet 16 side. Therefore, on the side of the auxiliary sheet 17 opposite to the main sheet 16, another passage connected to the passage 18 in the front-rear direction between the auxiliary sheet 17 and the other (left) main sheet 15. As a result, the occupant can pass through the other passages 36 in the front-rear direction smoothly without disturbing the auxiliary seat 17. In addition, the upper end surface of the auxiliary seat 17 in the “standing position” is used as an armrest of an occupant sitting on the main seat 16.

In the above case, the other (left) main sheet 15
The support rod 3 is provided at the end on the auxiliary sheet 17 side.
Other support holes 37, 37 are formed to allow only the protruding ends of the projections 2 and 32 to be freely fitted and removed. These other support holes 3
When the protruding end portions of the support rods 32, 32 are fitted in the support rods 7, 37, the protruding portions 2
8 is supported on the side of the other main seat 15, and the upper surface of the protruding portion 28 is used as an armrest of an occupant sitting on the main seat 15.

According to the above configuration, in the "overlapping state" of the auxiliary seat 17, the seat cushions 20, 2
The projecting portion 28 of the seat back 25 projecting forward from the front end of the seat back 4 can be detached from and restored to a portion 29 on the rotation center side of the seat back 25.

For this reason, as shown in FIGS. 4 and 5, when the auxiliary seat 17 is brought into the "overlapping state", the projecting portion 28 of the seat back 25 is disengaged from the portion 29 on the rotation center side. In this case, the protruding part 28 is
The obstruction of the occupant trying to pass left and right through the front passages 5 to 17 is prevented, and smooth passage is enabled.

As described above, the left and right main seats 1
When the auxiliary sheet 17 is installed between the main sheets 5 and 16, and the auxiliary sheet 17 is pivotally supported on one of the main sheets 15 and 16 by the pivot support 35, the other main sheet is used. The protruding portion 28 can be detachably supported by the supporting means 30 with respect to the side portion 15.

Therefore, when the auxiliary sheet 17 is not used, the auxiliary sheet 17 is placed in the "superposed state".
The auxiliary seat 17 is used as an armrest for one of the main seats 16 while the projecting portion 28 of the auxiliary seat 17 is detached from the portion 29 on the rotation center side. , The other main sheet 1
5, the protruding portion 28 is used as an armrest for the other main seat 15.

Therefore, it is not only unnecessary to store the useless projecting portion 28 which is detached from the rotation center side portion 29 and becomes unnecessary, and that the projecting portion 28 is used. Being useful.

In FIG. 1, the supporting means 30 is provided outside the protruding direction of the portion 29 on the rotation center side of the auxiliary sheet 17 with respect to the protruding end of the portion 29 on the rotation center side. 28 can be changed to an arbitrary position, and can be detachably locked at that position.

More specifically, the position of each support rod 32 in the auxiliary sheet 17 can be changed into the support hole 33, and the part 2 on the rotation center side at any position can be changed.
9 can be detachably locked by a locking means such as a spring.

For this reason, the seat back 25 is set to the “vertical posture”, and
Is separated from the rotation center side portion 29 to a desired position and locked (indicated by a dashed line in FIG. 1), the protruding portion 28 can be used as a headrest of the auxiliary seat 17, and thus the protruding portion 28 is useful. The performance is improved.

The following figures show the second and third embodiments. Each of these embodiments has many points in common with the first embodiment in configuration and operation. Therefore, these common components are denoted by the same reference numerals in the drawings, and redundant description thereof will be omitted, and different points will be mainly described.

(Second Embodiment)

FIG. 6 shows a second embodiment.

According to this, when the auxiliary sheet 17 is in the "overlapping state", the protruding portion 28 is turned up and down by the supporting means 30 which is a pivotal support member with respect to the turning end of the turning center side portion 29. It is pivoted freely. Then, when the protruding portion 28 is rotated downward (solid line in FIG. 6), the protruding portion 28 is separated from the portion 29 on the rotation center side, while the protruding portion 28 is turned to the original position. When the seat cushion 24 is rotated upward (indicated by the alternate long and short dash line in FIG. 6), the seat cushion 24 is restored to its original state.

In the above case, the protruding portion 28 is held in that state by holding means (not shown) at each turning position with respect to the portion 29 on the turning center side.

(Third Embodiment)

FIG. 7 shows a third embodiment.

According to this, the protruding portion 28 of the seat back 25 constitutes the fixed portion 28a integrally formed with the protruding end of the portion 29 on the rotation center side, and the tip of the rotation end of the seat back 25. Tip portion 28b of the projecting portion 28
When the auxiliary sheet 17 is in the "overlapping state", the distal end portion 28b is pivotally supported on the fixed portion 28a by a pivotal support 28c so as to be vertically rotatable. The tip portion 28b can be superimposed on the lower surface of the fixed portion 28a by its rotation (solid line in FIG. 7).

In the above case, the distal end portion 28b is held in that state by a holding means (not shown) at each rotational position with respect to the fixed portion 28a.

According to the above configuration, when the auxiliary seat 17 is in the "overlapping state", if the tip end portion 28b of the protruding portion 28 of the seat back 25 is rotated to overlap the fixed portion 28a, Accordingly, the projecting dimension of the pivotal end portion of the seat back 25 projecting forward from the front end of the seat cushion 24 is reduced, so that the projecting portion 28 is formed in the front passage 1 of each of the seats 15 to 17.
8 is prevented from obstructing the occupant trying to pass right and left, and smooth traffic is enabled.

In the above case, even if the distal end portion 28b is detached from the fixed portion 28a,
Since b is pivotally supported by the fixed portion 28a by the pivotal support 28c and is not removed from the fixed portion 28a, the operation of separately storing the tip portion 28b is unnecessary. Therefore, the work for smoothing the above-mentioned traffic can be facilitated accordingly.

Further, when the distal end portion 28b is detached, the distal end portion 28b is superimposed on the lower surface of the fixed portion 28a, so that the upper surface of the seat back 25 of the auxiliary sheet 17 in the "overlapping state" is entirely formed. Is kept flat.

Therefore, when the upper surface of the seat back 25 is used as a baggage storage, the front end portion 28b is prevented from being in the way, and the seat back 25 is prevented from being obstructed.
Is effectively used as a parcel storage.

Further, in the above configuration, the tip portion 2
8b is superimposed on the lower surface of the fixed portion 28a,
The front surfaces of the fixed portion 28a and the front end portion 28b are substantially located on one virtual plane 40 extending vertically in the width direction of each of the sheets 16 and 17.

Therefore, the occupant passing through the passage 18 on the front side of each of the seats 15 to 17 temporarily assumes that the fixed portion 28
Even if a and the front surface of the tip portion 28b come into contact with each other, they are prevented from becoming a hindrance to traffic, and also in this regard, the smooth traffic is possible.

Further, in the above configuration, as described in detail in the first embodiment, the end of the auxiliary sheet 17 in the "overlapping state" opposite to the main sheet 16 in the width direction is upward. Is provided with a pivotal support 35 for pivotally supporting the end of the main sheet 16 on the main sheet 16 so as to be capable of reciprocating rotation C and D toward the main sheet 16. Forward rotation A until it becomes “standing posture”
It is possible.

For this reason, when the auxiliary sheet 17 in the “overlapping state” is set in the “standing position” and its upper surface is used as an armrest, as described above,
Since the front surfaces of the front surface 8a and the front end portion 28b are substantially flush with each other on the imaginary plane 40, the palm feel to each of the front surfaces when the arm is placed on the armrest becomes smooth. The sitting comfort on the seat 16 is improved.

[0064]

The effects of the present invention are as follows.

According to the first aspect of the present invention, a main seat and an auxiliary seat are juxtaposed on a vehicle cabin floor, and each of the seats protrudes upward from a seat cushion and a rear end of the seat cushion. A seat back in a "vertical orientation", and a lower end pivotally supported by a rear end of the seat cushion so that the auxiliary seat can reciprocately rotate the seat back forward and downward. The height of the upper ends of both seat backs in the "vertical orientation" is made substantially the same, and the seat back of the auxiliary seat can be superimposed on the seat cushion by its forward rotation. A supplementary seat for an automobile in which the rotating end of the seat back projects forward from the front end of at least one of the two seat cushions. In over winding device,

The above “overlapping state” of the auxiliary sheet
In this case, the protruding portion of the seat back protruding forward from the front end of the one seat cushion can be detached and restored with respect to the portion on the rotation center side of the seat back.

For this reason, when the auxiliary seat is brought into the “overlapping state”, if the protruding portion of the seat back is separated from the portion on the rotation center side, the protruding portion becomes
It is possible to prevent the passenger from trying to pass right and left in the passage on the front side of each seat, thereby enabling smooth passage.

That is, as described above, the height of the upper end of the seat back in the “vertical orientation” of the auxiliary seat provided side by side with the main seat is positioned so as to be the same as that of the main seat. Even when a good backrest is secured, when the auxiliary seat is not used, when the seat back is rotated forward and overlapped with the seat cushion in the "overlapping state", the seat back is turned. The moving end is prevented from obstructing the occupant trying to pass through the front side of each seat, so that the vehicle can pass smoothly.

According to a second aspect of the present invention, a main seat and an auxiliary seat are arranged side by side on a vehicle cabin floor, and each of these seats protrudes upward from a seat cushion and a rear end side of the seat cushion. A seat back in a "vertical orientation", and a lower end pivotally supported by a rear end of the seat cushion so that the auxiliary seat can reciprocately rotate the seat back forward and downward. The height of the upper ends of both seat backs in the "vertical orientation" is made substantially the same, and the seat back of the auxiliary seat can be superimposed on the seat cushion by its forward rotation. A supplementary seat for an automobile in which the rotating end of the seat back projects forward from the front end of at least one of the two seat cushions. In over winding device,

The above “overlapping state” of the auxiliary sheet
The projecting portion of the seat back projecting forward from the front end of the one seat cushion is divided into a fixed portion integrally formed with a portion on the rotation center side of the seat back and a tip portion of the projecting portion. The distal end is rotatably supported on the fixed portion, and the distal end can be superimposed on the lower surface of the fixed portion by the rotation.

For this reason, when the auxiliary seat is set to the "overlapping state", the front end portion of the protruding portion of the seat back is rotated and overlapped with the fixed portion. The projecting dimension of the pivoting end of the seatback projecting forward is smaller than that of the seatback, so that the projecting portion does not obstruct the occupant trying to pass right and left through the front passage of each seat. As a result, smooth traffic is made possible, that is, the same effects as those of the first aspect are obtained.

In the above case, even if the tip portion is detached from the fixed portion, the tip portion is pivotally supported by the fixed portion by the pivotal support and is not removed from the fixed portion. There is no need to store the parts separately. Therefore, the work for smoothing the above-mentioned traffic can be facilitated accordingly.

Further, when the above-mentioned tip portion is detached,
Because this tip is superimposed on the lower surface of the fixed part,
The upper surface of the seat back of the auxiliary sheet in the "overlapping state" is kept entirely flat.

Therefore, when the upper surface of the seat back is used as a parcel storage, it is prevented that the front end portion becomes an obstacle, and the upper surface of the seat back is effectively used as a parcel storage.

According to a third aspect of the present invention, when the front end portion is superimposed on the lower surface of the fixed portion, each of the front surfaces of the fixed portion and the front end portion is one virtual plane extending vertically in the width direction of each of the sheets. It is located almost above.

Therefore, even if an occupant who passes through the front passage of each of the seats makes contact with the front surface of the fixed portion and the front end portion, it is possible to prevent the occupant from obstructing the passage.
Also in this respect, the smooth traffic is enabled.

According to a fourth aspect of the present invention, the main sheet side is arranged such that an end of the auxiliary sheet in the "overlapping state" opposite to the main sheet side in the width direction can reciprocate upward. A pivotal support for pivoting the end of the auxiliary sheet to the main sheet is provided, and the auxiliary sheet in the “overlapping state” can be turned forward until the auxiliary sheet is in the “standing position”.

For this reason, when the auxiliary sheet in the “overlapping state” is set in the “standing posture” and its upper surface is used as an armrest, as described above, the front surfaces of the fixed portion and the tip portion are on a virtual plane. Since they are almost located at the same level, the palm feel of each of the front surfaces when the arm is placed on the armrest becomes smooth, and thus the sitting comfort of the main seat is improved.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a sheet device according to a first embodiment.

FIG. 2 is an overall plan view of an automobile according to the first embodiment.

FIG. 3 is a side view of the seat device according to the first embodiment.

FIG. 4 is a diagram illustrating an operation in the first embodiment;
FIG.

FIG. 5 is a diagram illustrating an operation in the first embodiment;
FIG.

FIG. 6 is a diagram corresponding to a part of FIG. 4 in the second embodiment.

FIG. 7 is a diagram corresponding to a part of FIG. 4 in the third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automobile 2 Body 3 Car cabin floor 5 Car cabin 10,11 Seat device 15,16 Main seat 17 Auxiliary seat 18 Passage 19 Base 20,24 Seat cushion 21,25 Seat back 26,35 Pivot 28 Projecting part 28a Fixed Part 28b Tip part 28c Pivot 29 Part on rotation center side 30 Support means 36 Other passage 37 Other support hole 40 Virtual plane A, C Forward rotation B, D Return rotation

Claims (4)

[Claims] 1. A main seat and an auxiliary seat are juxtaposed on a vehicle cabin floor, each seat having a seat cushion, and a seat back in a vertical position protruding upward from a rear end side of the seat cushion. And a pivoting device for pivotally supporting a lower end of the auxiliary seat to a rear end of the seat cushion so that the seat back can reciprocate downward and forward in the seat back, and each of the auxiliary seats has a vertical orientation. The heights of the upper ends of the two seat backs are made substantially the same, and the seat back of the auxiliary seat can be superimposed on the seat cushion by the forward rotation thereof. A seat device with an auxiliary seat for an automobile, which projects forward from a front end of at least one of the two seat cushions. An auxiliary seat for an automobile in which a protruding portion of a seat back projecting forward from a front end of the one seat cushion in the overlapping state of the seat can be detached and restored with respect to a portion on the rotation center side of the seat back. With seat device. 2. A main seat and an auxiliary seat are juxtaposed on a vehicle cabin floor, each seat having a seat cushion, and a seat back in a vertical position protruding upward from a rear end side of the seat cushion. And a pivoting device for pivotally supporting a lower end of the auxiliary seat to a rear end of the seat cushion so that the seat back can reciprocate downward and forward in the seat back, and each of the auxiliary seats has a vertical orientation. The heights of the upper ends of the two seat backs are made substantially the same, and the seat back of the auxiliary seat can be superimposed on the seat cushion by the forward rotation thereof. A seat device with an auxiliary seat for an automobile, which projects forward from a front end of at least one of the two seat cushions. A fixing portion integrally formed with a portion of the seat back projecting forward from a front end of the one seat cushion in the overlapping state of the seat back and a portion on the rotation center side of the seat back; A seat with an auxiliary seat for a motor vehicle, which is divided into a front end portion of the portion and the front end portion is rotatably supported on the fixed portion, and the front end portion can be superimposed on the lower surface of the fixed portion by the rotation. apparatus. 3. When the front end portion is superimposed on the lower surface of the fixed portion, the front surfaces of the fixed portion and the front end portion are substantially located on one virtual plane that extends vertically and extends in the width direction of each sheet. 3. A seat device with an auxiliary seat for a motor vehicle according to claim 2, wherein: 4. The main sheet-side end of the auxiliary sheet in the superposed state is moved so that an end of the side opposite to the main sheet in the width direction can reciprocate upward. 4. A seat device with an auxiliary seat for an automobile according to claim 3, wherein a pivotal support for pivotally supporting the auxiliary seat is provided, and the auxiliary seat in the superimposed state can be forwardly rotated until the auxiliary seat is in an upright posture.