JP2004182105A - Vehicular auxiliary seat device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve attaching-detaching workability of an auxiliary seat by making the attaching-detaching auxiliary seat compact; and to easily secure a walk-through space by making an auxiliary seat housing space compact. <P>SOLUTION: This auxiliary seat device is arranged on the seat side. The auxiliary seat 23 has an auxiliary seat back 23a for detachably supporting the upper end side to a seat side part in the seat side part and rotatably pivoting the lower end side in the vehicle longitudinal direction and an auxiliary seat cushion 23b separately constituted from the auxiliary seat back 23a and detachably arranged to the seat side on the lower side of the auxiliary seat back 23a. Thus, since only the auxiliary seat cushion 23b is constituted so as to be attachable-detachable from the seat side, an enlargement and a weight increase of the attachable-detachable auxiliary seat can be restrained; the attaching-detaching workability of the auxiliary seat can be improved; and the auxiliary seat housing space can be made compact. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an auxiliary seat device for a vehicle.
[0002]
[Prior art]
Conventionally, in a vehicle seat device, it is possible to attach and remove a relatively slow rideability when the number of occupants is small and to secure the occupant rideability when a large number of occupants are on board temporarily. An auxiliary sheet is provided.
For example, Patent Literature 1 below discloses that a detachable center seat is provided between left and right seats, and the center seat is detached in accordance with an increase or decrease in the number of occupants. In the following Patent Document 1, when a center sheet is not used, the center sheet is fixed to a tire house or the like.
[0003]
[Patent Document 1]
JP 2001-47910 A
[Problems to be solved by the invention]
However, according to the above prior art, there are the following problems.
In other words, the center seat disclosed in the prior art described above has a seat back and a seat cushion integrated with each other, so that an increase in the size of the center seat and an increase in weight are inevitable, and the workability of attaching and detaching the center is deteriorated. When not used as a sheet, there is a problem that a large space is required to store the center sheet. In particular, when the removed center seat is stored in a truck room or the like, there is a problem that the space in the trunk room is reduced.
[0005]
In a vehicle provided with a plurality of seat rows in the front-rear direction of the vehicle, an occupant may move between seat rows before and after the vehicle is running, so-called walk-through may be performed. This is performed using the space between the left and right sheets.
However, according to the above-described prior art, as described above, the workability for attaching and detaching is poor due to the increase in the size of the center sheet, so that a walk-through space between the center sheets cannot be easily secured.
[0006]
In general, when an occupant sits on a seat, it is desirable to provide a table or an armrest beside the seat from the viewpoint of improving convenience.
However, when the center sheet is removably arranged between the left and right sheets as in the above-described prior art, the space between the left and right sheets needs to be increased in consideration of the fact that the center sheet is attached, and furthermore, However, arranging a table or armrest as a separate member is difficult due to limited space in the vehicle width direction.
[0007]
The present invention has been made in view of the above problems, and a first object of the present invention is to reduce the size of an auxiliary sheet to be attached and detached, to improve the workability of attaching and detaching the auxiliary sheet, and to increase the space for storing the auxiliary sheet. The goal is to make it more compact.
A second object is to make the detachable auxiliary seat compact and to easily secure a walk-through space between the left and right seats.
A third object is to configure the auxiliary sheet so that it can be used for purposes other than the sheet, and to improve convenience without providing a separate member.
In the present invention, "the auxiliary sheet is detachably provided on the side of the sheet" and "the auxiliary sheet is detachably provided between the first and second sheets" means that the auxiliary sheet is adjacent to the sheet. That is detachably attached to the side (side surface) of the seat to be mounted or that is detachably attached to the floor of the vehicle.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides the following as a solution. That is, in the first configuration of the present invention, the auxiliary seat device provided on the side of the seat,
The above auxiliary sheet is
An auxiliary seatback whose upper end is detachably supported on the side of the seat and whose lower end is pivotably supported in a vehicle front-rear direction,
An auxiliary seat cushion is provided separately from the auxiliary seat back, and provided below the auxiliary seat back so as to be detachably attached to a side of the seat.
According to the first configuration of the present invention, the auxiliary seat cushion and the auxiliary seat back are configured separately, and only the auxiliary seat cushion is configured to be detachable from the side of the seat. It is possible to suppress an increase in the size and weight of the auxiliary sheet that can be attached and detached when attaching and detaching the auxiliary sheet, improve the workability of attaching and detaching the auxiliary sheet, and reduce the size of the auxiliary sheet storage space.
In addition, since the auxiliary seat back is rotatable in the vehicle front-rear direction, when the auxiliary seat is not used, the auxiliary seat back is rotated forward to be positioned substantially horizontally, so that the back of the auxiliary seat back serves as a table. It can be used and convenience can be improved without providing a separate member.
[0009]
Further, in the second configuration of the present invention, the auxiliary seat back is turned forward in a vehicle forward direction and the back surface of the auxiliary seat back is directed upward, and is turned in the vehicle width direction from the front tilted state. The auxiliary seat back is provided with a rotating mechanism that can take a vertical state in which the back surface faces the vehicle width direction.
Here, when the back position of the auxiliary seat back is at a relatively low position near the seat cushion when the auxiliary seat back is brought forward, it is difficult to use the auxiliary seat back as an armrest.
According to the second configuration of the present invention, a frontward state in which the back surface of the auxiliary seat back faces upward, and a vertical state in which the back surface of the auxiliary seat back is turned in the vehicle width direction from the forwardly leaning state and the rear surface faces in the vehicle width direction. When the auxiliary seat is not used, the side of the auxiliary seat can be positioned high when the auxiliary seat is not used, so that the auxiliary seat back can be used as an armrest. And the convenience can be improved.
[0010]
In the third configuration of the present invention, the seat includes a seat cushion on which an occupant sits, and a seat back extending substantially upward from a rear end of the seat cushion,
The auxiliary seat back is pivotally supported on the side of the seat back, while the auxiliary seat cushion is configured to be detachably attached to the side of the seat cushion.
According to the third configuration of the present invention, the auxiliary seat back and the auxiliary seat cushion are each detachably attached to the seat back and the seat cushion adjacent to the auxiliary seat. The seat can follow the movement.
[0011]
Further, in the fourth configuration of the present invention, there is provided an auxiliary seat device provided between a first seat and a second seat provided so as to be substantially in the same row in a vehicle width direction of the vehicle,
The above auxiliary sheet is
An auxiliary seat back whose upper end is detachably supported on the side of the first or second seat and whose lower end is pivotally supported in a vehicle front-rear direction;
An auxiliary seat cushion which is configured separately from the auxiliary seat back and is provided below the auxiliary seat back so as to be detachably provided between the first and second seats;
The auxiliary seat back is
A front-turned state in which the back of the auxiliary seat back is turned upward in the vehicle front side, and a vertical state in which the back of the auxiliary seat back is turned in the vehicle width direction from the front-down state and the back of the auxiliary seat back is directed in the vehicle width direction. It is configured to have a possible rotation mechanism.
According to the fourth configuration of the present invention, the auxiliary seat cushion and the auxiliary seat back are configured separately, and only the auxiliary seat cushion is configured to be detachable from the side of the seat. Since it is possible to suppress an increase in the size and weight of the auxiliary sheet that can be attached and detached when the whole is attached and detached, it is possible to improve the attaching and detaching workability and to make the auxiliary sheet storage space compact.
Further, since the auxiliary seat back is rotatable in the front-rear direction of the vehicle, it can be rotated forward and used as a table, and convenience can be improved without providing a separate member.
In addition, a walk-through space between the left and right seats can be easily secured by a simple operation of removing only the auxiliary seat cushion and folding the auxiliary seat back from the forward tilted state to the vertical state.
[0012]
In the fifth configuration of the present invention, the first and second seats each include a seat cushion on which an occupant sits, and a seat back extending substantially upward from a rear end of the seat cushion,
The auxiliary seat back is pivotally supported on the side of the seat back of the first or second seat, while the auxiliary seat cushion is detachably attached to the side of the seat cushion of the first or second seat. It is configured to be able to.
According to the fifth configuration, since the auxiliary seat back and the auxiliary seat cushion are respectively detachably attached to the seat back and the seat cushion adjacent to the auxiliary seat, when the seat is moved in the front-rear direction, the auxiliary seat is You can follow the movement.
[0013]
Further, in the sixth configuration of the present invention, the auxiliary seat cushion is configured such that one side surface thereof is detachably attached to a side portion of the seat cushion, and the lower surface is provided with a leg portion configured to be foldable. I have.
According to the sixth configuration of the present invention, when the auxiliary seat is used, the load of the occupant can be supported by removing the legs from the lower surface, and when the auxiliary seat is not used, the legs are folded to the lower surface. The auxiliary seat can be stored compactly.
[0014]
Further, in the seventh configuration of the present invention, the auxiliary seat back is configured such that a concave portion is provided on a back surface thereof.
According to the seventh configuration of the present invention, since the concave portion is provided on the back surface of the auxiliary seat back, when the auxiliary seat back is used as a table in the forwardly inclined state, the drinking water container or the like can be stably placed in the concave portion. It becomes possible, and the convenience as a table can be further improved.
[0015]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the auxiliary seat which can be attached or detached can be made compact, the attachment / detachment workability of an auxiliary sheet can be improved, and the auxiliary seat storage space can be made compact.
In the case where the auxiliary seat is provided between the left and right seats, a walk-through space can be easily secured between the left and right seats by simply removing the auxiliary seat cushion and folding the auxiliary seat back.
Further, the auxiliary seat back can be used for purposes other than the auxiliary seat, and the convenience can be improved without providing a separate member.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a vehicle plan view showing a seat row arrangement of a vehicle according to the first embodiment.
The vehicle 1 has a first row of seats 10 arranged in the front row of the vehicle, a second row of seats 20 arranged behind the first row of seats 1, and a rear row of the second row of seats 2. A third sheet row 30 to be arranged is arranged.
The first row of rows 10 is composed of a driver's seat 11 and a passenger's seat 12, and the second row of row 20's is positioned behind a second right-side seat 21 located behind the driver's seat 11 and behind the passenger's seat 12. The left side second seat 22 and the auxiliary seat 23 which is detachably disposed between the second seats 21 and 22 are provided, and the third seat row 30 can seat two or three occupants. It consists of a bench type bench seat.
Reference numeral 2 denotes a subtrunk configured to be able to store only an auxiliary seat cushion described later among the spare tire 3 and the auxiliary seat 23.
[0017]
(1st Embodiment)
Next, the details of the auxiliary sheet 23 will be described with reference to FIGS. 2A and 2B.
FIG. 2 is a perspective view of the right second seat 21 and the auxiliary seat 23. The auxiliary seat 23 includes an auxiliary seat back 23a and an auxiliary seat cushion 23b separate from the auxiliary seat back. As will be described in detail later, the upper end of the auxiliary seat back 23a is provided with the seat backs 21a and 22a of the second right seat 21 and the second left seat 22 (only the right second seat is shown in FIG. 2). The auxiliary seat cushion 23b is detachably supported on the side and the lower end is pivotally supported by the side of the right second seat 21, while the auxiliary seat cushion 23b is a side of the seat cushion 21b of the right second seat 21. It is detachably attached to.
[0018]
Next, details of the auxiliary seat cushion 23b will be described with reference to FIGS.
FIG. 3 is a diagram showing a frame structure of the seat cushion 21b and the auxiliary seat cushion 23b of the second seat 21 on the right side. The seat cushion 21b is provided with a seat cushion frame 21c. And support portions 21e, 21e in which insertion openings 21d, 21d for supporting the auxiliary seat cushion 23b are formed.
The auxiliary seat cushion 23b is provided with an auxiliary seat cushion frame 23c and legs 23d, and the auxiliary seat cushion frame 23c is formed with support members 23e, 23e inserted into the insertion openings 21d, 21d. In addition, support portions 23f, 23f for rotatably supporting the leg portion 23d are formed.
Then, as shown in FIG. 2A, the support members 23e, 23e of the auxiliary seat cushion 23b are inserted into the insertion openings 21d, 21d formed on the side of the seat cushion 21b of the right second seat 21. Thus, it is supported by the seat cushion 21.
In addition, since the lower surface of the auxiliary seat cushion 23b is provided with a leg 23d which is configured to be foldable, when the auxiliary seat 23 is used, as shown in FIG. By extending the leg 23d from the lower surface so as to be substantially perpendicular to the floor surface of the vehicle, it is possible to support the load of the occupant. When the auxiliary seat 23 is not used, as shown in FIG. The leg portion 23d is folded and stored on the lower surface of the auxiliary seat 23, and the auxiliary seat cushion 23b can be stored compactly.
The removed auxiliary seat cushion 23b is stored above the spare tire 3 in the sub trunk 2 formed on the lower surface of the floor behind the third seat row 30, as shown in FIG.
[0019]
Next, details of the auxiliary seat back 23a will be described with reference to FIGS.
5 is a view showing a use mode of the auxiliary seat back 23a, FIG. 6 is a perspective view showing a table mode of the auxiliary seat back 23a, FIG. 7 is a perspective view showing an armrest mode of the auxiliary seat back 23a, and FIG. FIG. 3 is a diagram illustrating a frame structure of a seat back 21a of a seat 21, a seat back 22a of a second left seat 22, and an auxiliary seat back 23a.
[0020]
As shown in FIGS. 5A and 2A, the auxiliary seat back 23a has an auxiliary seat use mode in which the auxiliary seat 23 is used as an original auxiliary sheet, and FIGS. 5B and 6 show the auxiliary seat use mode. In addition, a table mode in which the auxiliary seat back 23a is turned to the front side of the vehicle so that the back surface of the auxiliary seat back 23a faces the upper side of the vehicle, and can be used as a table, and FIG. As shown in FIG. 7, the auxiliary seat back 23a is further turned to the right second seat 21 side in the vehicle width direction from the state of FIGS. 5B and 6, and the left second seat of the auxiliary seat back 23a. The side of the side 22 is in a vertical state facing the upper side of the vehicle, and is configured to be able to selectively use three modes, an armrest mode that can be used as an armrest.
[0021]
Next, based on FIG. 8, the specific structures of the seat backs 21a and 22a of the right second seat 21, the left second seat 22, and the auxiliary seat back 23a for properly using the above three modes will be described.
First, seat back frames 21f, 22f are provided on the seat backs 21a, 22a of the right second seat 21 and the left second seat 22, respectively. The upper portions of the seat back frames 21f, 22f on the auxiliary seat 23 side are provided. Strikers 21g and 22g are formed.
In addition, a support portion 21h for supporting the rotation member 24 is formed substantially at the center of the seat back frame 21f on the auxiliary seat 23 side. The rotation member 24 is disposed in the support portion 21h. By inserting a pin (not shown) rotatable relative to 24 from the side, it is pivotably supported in the vehicle front-rear direction.
Next, the auxiliary seat back frame 23g is provided with an auxiliary seat back frame 23g, and lock portions 23h, 23h to be locked by the strikers 21g, 22g are formed on both upper sides of the auxiliary seat back frame 23g. In addition, a support portion 23i into which a shaft 24a that enables the rotation member 24 to rotate in the vehicle width direction is formed in the auxiliary seat back frame 23g at a position facing the upper side of the support portion 21h. The rotating member 24 is pivotally supported in the vehicle width direction around the shaft 24a. In the first embodiment, a rotation mechanism is configured by the support portion 21h, the support portion 23i, the rotation member 24, and the shaft 24a.
[0022]
The change operation from the auxiliary seat use mode to the table mode and the change operation from the table mode to the armrest mode based on the above configuration will be described.
First, the change from the auxiliary sheet use mode to the table mode will be described.
In the auxiliary seat use mode shown in FIGS. 5A and 2A, the lock portions 23h, 23h on both sides of the auxiliary seat back frame 23g are removed from the strikers 21g, 22g, and the auxiliary seat back frame 23g (the auxiliary seat back 23a) is removed. ) Is rotated to the front of the vehicle, the rotation member 24 is rotated to the front of the vehicle about the axis a to be in the forwardly inclined state, and the auxiliary seat back 23a is moved to the table shown in FIGS. Mode can be changed.
At this time, a rectangular concave portion 23j and two circular concave portions 23k, 23k usable as a cup holder are formed on the back surface of the auxiliary seat back 23a, as shown in FIG. Drinking water containers and the like can be stably placed in the concave portions 23j, 23k, and 23k, and convenience when used as a table can be improved.
[0023]
Next, a change from the table mode to the armrest mode will be described.
In the table mode shown in FIGS. 5B and 6, the auxiliary seat back frame 23 g (the auxiliary seat back 23 a) is rotated upward in the vehicle toward the right second seat 21, that is, FIG. As shown in ()), when the auxiliary seat back seat back frame 23g (auxiliary seat back 23a) is rotated in the direction of arrow A from the auxiliary seat position in the table mode indicated by the wavy line to the auxiliary seat position in the armrest mode indicated by the solid line, the rotation is performed. Since the member 24 rotates around the axis b in the direction of the right second seat 21, the auxiliary seat back 23 a is in a vertical state in which the side surface on the left second seat 22 side of the auxiliary seat back 23 a faces upward in the vehicle, and The back 23a can be changed to the armrest mode shown in FIGS.
As shown in FIG. 5B, the position of the auxiliary seat back 23a in the table mode is located low near the auxiliary seat cushion 23b. In this state, it is difficult to use the armrest as an armrest. As shown, by setting the auxiliary seat back 23a in the vertical state, the side position of the auxiliary seat back 23a can be increased, and the auxiliary seat back 23a can be used as an armrest.
[0024]
As described above, according to the present embodiment, the auxiliary seat cushion 23b and the auxiliary seat back 23a are configured separately, and only the auxiliary seat cushion 23b is configured to be detachable from the sides of the seats 21 and 22. Therefore, it is possible to suppress an increase in the size and weight of the auxiliary sheet 23 to be attached / detached when the entire auxiliary sheet 23 is attached / detached. The subtrunk 2 as a seat storage space can be made compact.
Further, since the auxiliary seat back 23 is rotatable in the vehicle front-rear direction, when the auxiliary seat 23 is not used, the auxiliary seat back 23a is rotated forward to be positioned in a substantially horizontal state, so that the auxiliary seat back 23a The back surface can be used as a table, and convenience can be improved without providing a separate member.
Further, since the auxiliary seat back 23a is configured to be able to take an armrest mode in which the back surface of the auxiliary seat back 23a is turned in the vehicle width direction from the table mode in which the rear surface is directed upward and the back surface of the auxiliary seat back 23a is in the vehicle width direction, the auxiliary seat 23 is configured. When not in use, by setting the auxiliary seat back 23a in a vertical state, the side surface of the auxiliary seat 23 can be positioned high, so that the auxiliary seat back 23a can be used as an armrest, thereby improving convenience. it can.
Further, since the auxiliary seat back 23a and the auxiliary seat cushion 23b are detachably attached to the seat backs 21a, 22a and the seat cushions 21b, 22b next to the auxiliary seat 23, respectively, the right second seat 21 and the left second seat 22 are provided. Is moved in the front-rear direction, the auxiliary seat 23 can follow the movement.
In addition, a walk-through space between the right second seat 21 and the left second seat 22 can be easily secured by a simple work of removing only the auxiliary seat cushion 23b and folding the auxiliary seat back 23a vertically. .
Also, on the back surface of the auxiliary seat back 23a, a rectangular concave portion 23j and two circular concave portions 23k, 23k that can be used as a cup holder are formed, so that these concave portions 23j, 23k, 23k are formed. A drinking water container or the like can be stably placed, and convenience when used as a table can be further improved.
[0025]
(2nd Embodiment)
Next, a second embodiment will be described with reference to FIG.
FIG. 9 is a diagram showing a use mode of the auxiliary seat back 23a according to the second embodiment. In the second embodiment, the position of the auxiliary seat cushion 23a in the table mode and the table mode are different from those of the first embodiment. The only difference is that the direction of rotation of the auxiliary seat back 23a when changing to the armrest mode is different, and the other points are the same as in the first embodiment. Therefore, only the differences will be described below.
In the first embodiment, the position of the auxiliary seat back 23a in the table mode is located below the seat back 21a of the second seat on the right side, near the seat cushion 21b, and assists when changing from the table mode to the armrest mode. The example in which the seat back 23a is rotated upward of the vehicle is shown.
On the other hand, in the second embodiment, as shown in FIG. 9B, the position of the auxiliary seat back 23a in the table mode is set high near the center of the seat back 21a of the second seat on the right side, and the table mode is set. When the mode is changed to the armrest mode, as shown by an arrow B in FIG. 9C, an example is shown in which the auxiliary seat back 23a is turned downward in the vehicle.
[0026]
As described above, according to the second embodiment, the same functions and effects as those of the above-described first embodiment can be obtained.
Furthermore, according to the second embodiment, since the position of the auxiliary seat back 23 in the table mode can be raised, the table mode can be used as an armrest when nothing is placed on the table in the table mode. It can also be used as an armrest mode.
[0027]
In the present embodiment, the example in which the auxiliary seat 23 is disposed between the right second seat 21 and the left second seat 22 of the second row seat row 20 has been described. The present invention may be applied to an auxiliary seat 23 disposed between the normal two independent seats other than the bench type.
Further, in the present embodiment, the example in which the auxiliary seat 23 is arranged between the right second seat 21 and the left second seat 22 of the second row of seat rows 20 has been described. The present invention may be applied to the auxiliary seat 23 arranged on the door side of one of the seats.
Further, in the present embodiment, the example is shown in which the auxiliary seat 23 is detachably attached to the side of the seat cushion 21b of the adjacent second seat 21 on the right side. However, the auxiliary seat 23 may be detachably attached to the floor of the vehicle. .
Further, in the present embodiment, an example is shown in which a rectangular recess 23h and two circular recesses 23i, 23i that can be used as a cup holder are provided on the back surface of the auxiliary seat back 23a. 23i, 23i are not necessarily required, and a horizontal plane may be secured.
[Brief description of the drawings]
FIG. 1 is a vehicle plan view showing a seat row arrangement of a vehicle according to a first embodiment.
FIG. 2 is a perspective view of a second right seat and an auxiliary seat according to the first embodiment;
FIG. 3 is a structural diagram of a seat cushion and an auxiliary seat cushion according to the first embodiment.
FIG. 4 is a diagram showing a storage state of an auxiliary seat cushion according to the first embodiment in a sub trunk.
FIG. 5 is a diagram showing a use mode of an auxiliary seat back according to the first embodiment.
FIG. 6 is a perspective view of an auxiliary sheet in a table mode according to the first embodiment.
FIG. 7 is a perspective view of an auxiliary seat in an armrest mode according to the first embodiment.
FIG. 8 is a structural diagram of a seat back and an auxiliary seat back according to the first embodiment.
FIG. 9 is a diagram showing a use mode of an auxiliary seat back according to the second embodiment.
[Explanation of symbols]
1: vehicle 21: right second seat (first seat)
21a: Seat back 22a: Seat cushion 21h: Support (rotation mechanism)
22: Left second seat (second seat)
23: Auxiliary seat 23a: Auxiliary seat back 23b: Auxiliary seat cushion 23d: Leg 23i: Support (rotation mechanism)
23j, 23k: recess 24: rotating member (rotating mechanism)
24a: shaft (rotation mechanism)

Claims (7)

An auxiliary seat device provided on a side of the seat,
The above auxiliary sheet is
An auxiliary seatback whose upper end is detachably supported on the side of the seat and whose lower end is pivotably supported in a vehicle front-rear direction,
An auxiliary seat device for a vehicle, comprising: an auxiliary seat cushion which is formed separately from the auxiliary seat back and is provided below the auxiliary seat back so as to be detachably attached to a side of the seat. . The auxiliary seat back is turned forward in the vehicle and the back side of the auxiliary seat back is directed upward, and the front side of the auxiliary seat back is turned in the vehicle width direction. The auxiliary seat device for a vehicle according to claim 1, further comprising a rotating mechanism that can take a vertical state facing the vehicle. The seat includes a seat cushion on which an occupant sits, and a seat back extending substantially upward from a rear end of the seat cushion,
The said auxiliary seat back is pivotally supported by the side part of the said seat back, The said auxiliary seat cushion is detachably attached to the side part of the said seat cushion, The Claims 1 or 2 characterized by the above-mentioned. Auxiliary seat device for vehicles. An auxiliary seat device provided between a first seat and a second seat disposed so as to be substantially in the same row in a vehicle width direction of the vehicle,
The above auxiliary sheet is
An auxiliary seat back whose upper end is detachably supported on the side of the first or second seat and whose lower end is pivotally supported in a vehicle front-rear direction;
An auxiliary seat cushion which is configured separately from the auxiliary seat back and is provided below the auxiliary seat back so as to be detachably provided between the first and second seats;
The auxiliary seat back is
A front-turned state in which the back of the auxiliary seat back is turned upward in the vehicle front side, and a vertical state in which the back of the auxiliary seat back is turned in the vehicle width direction from the front-down state and the back of the auxiliary seat back is directed in the vehicle width direction. An auxiliary seat device for a vehicle, comprising a rotating mechanism that can be taken. The first and second seats each include a seat cushion on which an occupant sits, and a seat back extending substantially upward from a rear end of the seat cushion,
The auxiliary seat back is pivotally supported on the side of the seat back of the first or second seat, while the auxiliary seat cushion is detachably attached to the side of the seat cushion of the first or second seat. The auxiliary seat device for a vehicle according to claim 4, wherein the auxiliary seat device is provided. 6. The auxiliary seat cushion according to claim 3, wherein one side surface of the auxiliary seat cushion is detachably attached to a side portion of the seat cushion, and a lower surface is provided with a leg configured to be foldable. 7. Auxiliary seat device for vehicles. The auxiliary seat device for a vehicle according to any one of claims 1 to 6, wherein the auxiliary seat back has a concave portion on a back surface thereof.

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