JP5092515B2 - Auxiliary seat device for vehicle - Google Patents

Description

  The present invention relates to an auxiliary seat device for a vehicle provided with a back door that pivots downward about a lower end portion and opens.

  Conventionally, as this type of auxiliary seat, for example, there is a load carrying space shielding device described in Patent Document 1. This shielding device is configured by connecting an auxiliary backrest portion, an auxiliary seat portion, and a leg portion, each of which is formed by stretching a sheet material on a frame-like frame made of a pipe. And the auxiliary backrest part is connected with the back surface of the backrest part of the last side seat (bench seat). By deploying the shielding device, the luggage compartment can be covered as a tonneau cover and a bench seat can be configured. Furthermore, when not in use, the auxiliary backrest, the auxiliary seat, and the leg can be folded and accommodated in a recess on the back surface of the backrest of the rear seat. Therefore, this shielding device does not occupy a large space behind the rear seat when not in use.

In addition, the passenger car that is described in Patent Document 2 includes a folding auxiliary seat on the back surface of the backrest portion of the rear seat. This auxiliary seat is composed of a plate-like seat portion and a leg portion, and in a deployed state, it constitutes a rear-facing bench seat that uses the back side of the backrest portion of the rearmost seat as the backrest portion. This auxiliary seat also does not occupy a large space behind the rear seat when not in use.
Japanese Utility Model Publication No. 1-73051 Japanese Utility Model Publication No. 1-113026

  However, since the shielding apparatus described in Patent Document 1 merely constitutes a bench seat having a seat portion, a backrest portion, and a leg portion, the user is not seated in an easy posture with the legs extended.

  Moreover, since the auxiliary seat described in Patent Document 2 only constitutes a bench seat using the backrest portion of the rear seat, it is used in an easy posture with the legs extended, like the shielding device of Patent Document 1. No one can be seated.

  The present invention has been made paying attention to such problems existing in the prior art. The purpose is to provide an auxiliary seat device for a vehicle that can occupy a large space when not in use, and can seat a user in an easy posture with extended legs when in use. There is to do.

In order to achieve the above object, the present invention is an auxiliary seat device for a vehicle having a back door that pivots downward about a lower end portion and is connected to the back surface of the backrest portion of the rearmost seat. An auxiliary backrest, an auxiliary seat connected to the auxiliary backrest, and a footrest configured by a back side of the back door, and the auxiliary seat on the front side of the back door when in use. and auxiliary backrest is disposed in the deployed state, the auxiliary backrest and an auxiliary seat during waste is configured to be folded over the back of the backrest, wherein the auxiliary seat and the footrest, the In the open state of the back door, a connecting means for locking the rear end portion of the auxiliary seat portion to the footrest portion and connecting the auxiliary seat portion to the footrest portion is provided. To do.

  According to this configuration, when the auxiliary seat device is not used, the auxiliary seat and the auxiliary backrest portion are folded on the back surface of the backrest portion of the rearmost seat, and do not occupy a large space in the vehicle interior. On the other hand, at the time of use, the user can extend his / her leg to the back of the back door, and the user can be seated in a comfortable posture.

  Further, the present invention is characterized in that a leg member for supporting the auxiliary seat portion on a vehicle body floor is connected to the auxiliary seat portion.

  According to this configuration, the auxiliary seat portion is supported on the vehicle body floor by the leg member. For this reason, compared with the structure which does not provide a leg member, the structural strength of an auxiliary seat part can be weakened. Therefore, the auxiliary seat can be seated at a position away from the vehicle body floor without increasing the structural strength of the auxiliary seat.

Further, the present invention is an auxiliary seat device for a vehicle including a back door that pivots downward about a lower end portion, and includes an auxiliary backrest portion configured by a back surface of a backrest portion of a rearmost seat. An auxiliary seat portion connected to the auxiliary backrest portion and a footrest portion constituted by the back side of the back door are provided, and the auxiliary seat portion is installed on the front side of the back door when in use, and when not in use wherein the auxiliary seat portion on a rear of the backrest portion is configured to be folded, the every portion of the auxiliary seat and the foot, in the open state of the back door, the foot rear end portion of the auxiliary seat portion It is characterized in that a connecting means is provided for locking the auxiliary seat portion to the footrest portion by being engaged with the rest portion.

  According to this configuration, when not in use, the auxiliary seat portion is folded to the back side of the backrest portion of the rearmost seat and does not occupy a large space in the vehicle interior. On the other hand, at the time of use, the user can extend his / her leg to the back of the back door, and the user can be seated in a comfortable posture.

  The present invention also relates to an auxiliary seat device for a vehicle having a back door that pivots downwardly around a lower end portion, the auxiliary backrest portion including the backrest portion of the rearmost seat, and the auxiliary backrest. An auxiliary seat installed on the rear side of the seat, and in use, the auxiliary seat is installed on the vehicle body floor, and the auxiliary backrest is removed from a predetermined position with respect to the seat of the rear seat. It is installed at a predetermined position on the vehicle floor corresponding to the auxiliary seat, and is configured such that when not in use, the auxiliary seat is removed from the vehicle floor and the auxiliary backrest is returned to a predetermined position corresponding to the seat. It is characterized by that.

  According to this configuration, when not in use, the auxiliary seat portion is removed from the vehicle body floor and does not occupy a large space in the vehicle interior. On the other hand, at the time of use, the user can extend his / her leg to the back of the back door, and the user can be seated in a comfortable posture.

  Moreover, this invention is characterized in that the auxiliary seat portion is used with the upper lid of the rear housing portion being reversed.

  According to this configuration, the auxiliary seat portion can be easily switched between the use state and the non-use state, and the space in the vehicle compartment is not occupied when not in use.

  According to the present invention, a large space can be prevented from being occupied when not in use, and the user can be seated in an easy posture with the legs extended during use.

(First embodiment)
Next, a first embodiment embodying the present invention will be described with reference to FIGS. In the following description, “front” and “rear” follow the longitudinal direction of the vehicle.

  A vehicle 10 shown in FIG. 2 is, for example, an open car, a station wagon, a minivan, or a one-box vehicle, and includes a back door 11 that pivots downward about a lower end portion and opens. The back door 11 projects from the rear part of the vehicle body to the outside in a substantially horizontal state in the opened state. In the vehicle 10, an auxiliary seat 20 that can be switched between a use state and a non-use state is provided between the back door 11 and the rearmost seat 12. The auxiliary seat 20 includes an auxiliary seat portion 21 and an auxiliary backrest portion 22 that are installed on the front side of the back door 11 when in use, and the back side of the back door 11 is configured as a footrest portion 23. The reclining mechanism 13c of the rear seat 12 is configured so that the backrest 13 can be tilted forward as shown in FIG. Moreover, as shown in FIG. 1, the headrest 13b provided in the backrest part 13 can be used by being supported by the backrest part 13 in a state where the front and rear directions are changed from the normal use state.

  As shown in FIGS. 2 and 4, the auxiliary seat portion 21 and the auxiliary backrest portion 22 are stretched between the pair of left and right frames 24, the connecting pipe 32 connecting the rear ends of both frames 24, and the left and right frames 24. A net 26 as a flexible sheet-like material, and a substantially semicircular connecting plate 25 joined to the rear end of the net 26 are provided. The auxiliary seat portion 21 is composed of both frames 24, a connecting pipe 32, and a substantially rear half of the net 26. Further, the auxiliary backrest 22 is constituted by the remaining front half of the net 26. Both frames 24 are formed to extend substantially linearly, for example, with a metal cylinder or synthetic resin. As shown in FIG. 5, the connecting plate 25 is rotatably connected to the rear end of the auxiliary seat portion 21 by sandwiching the rear end portion of the net 26. In addition, a ridge portion 25 a is integrally formed on the peripheral edge portion of the lower surface of the connecting plate 25.

  As shown in FIGS. 1 and 2, the upper end side of the auxiliary backrest portion 22 made of the net 26 is connected to the upper portion of the back surface 13 a of the backrest portion 13 of the rear seat 12. Further, the rear end of the auxiliary seat portion 21 is connected to the rear front end portion of the back door 11. As shown in FIG. 7, a substantially semicircular recess 28 is formed in the front part of the back surface of the back door 11, and an engaged groove 28 a is formed along the periphery of the recess 28. A locking groove 28b is formed. As shown in FIG. 5, in the opened state of the back door 11, the connecting pipe 32 is fitted into the locking groove 28b, and the protrusion 25a is engaged with the engaged groove 28a in the recess 28. In this state, the connecting plate 25 is fitted. Then, the rear end of the auxiliary seat portion 21 is connected to the back door 11 by the engagement of the connection pipe 32 with the back door 11. That is, in this embodiment, the connection means is constituted by the connection pipe 32 and the locking groove 28b. As shown in FIGS. 1 and 2, a foot pad 29 that is attached to and detached from the back surface of the back door 11 by, for example, a hook-and-loop fastener is disposed on the connecting plate 25 held on the back surface of the back door 11. The

  As shown in FIGS. 1 and 2, a leg member 30 fixed on the vehicle body floor 14 in use is rotatably connected between the front ends of the left and right frames 24. The leg member 30 is formed in a substantially U shape by a pipe material, and both ends thereof are connected to the left and right frames 24. The left and right frames 24 are held at a predetermined interval by the connecting plate 25 and the leg member 30. Between the leg member 30 and each frame 24, a pair of connecting members 31 for fixing the positional relationship between the both frames 24 and the leg member 30 when the auxiliary seat 20 is used is provided.

  That is, as shown in FIGS. 6A and 6B, one end of each connecting member 31 is rotatably connected to the side portion of the leg member 30, and the other end is connected to each frame 24. On the other hand, it is slidably connected. The lower end of the leg member 30 is fixed in the fixing groove 15 formed on the vehicle body floor 14 with the positional relationship with respect to the frames 24 fixed by the connecting members 31. Accordingly, the auxiliary seat portion 21 and the auxiliary backrest portion 22 are supported between the back door 11 and the rearmost seat 12 and supported on the vehicle body floor 14 by the leg members 30.

  As shown in FIGS. 3 and 8, the auxiliary seat portion 21, the auxiliary backrest portion 22, and the leg member 30 that are connected to each other are folded on the back surface 13 a of the backrest portion 13 of the rear seat 12 when not in use. When not in use, the folded back portion of the auxiliary back portion 22 and the lower end portion of the auxiliary seat portion 21 are inserted into the pocket 16 provided at the lower portion of the back surface 13a of the back portion 13, and the upper portion thereof is provided at the upper portion of the back surface. Not fixed by the locking mechanism.

  In the vehicle 10 configured as described above, in order to switch the auxiliary seat 20 from the non-use state to the use state, first, as shown in FIG. Then, the auxiliary seat part 21, the auxiliary backrest part 22 and the leg member 30 are lifted out of the pocket 16. Moreover, the headrest 13b of the backrest part 13 is attached to the headrest 13b by changing the front-rear direction.

  Next, as shown in FIG. 10, the connecting plate 25 and the leg member 30 are expanded, and the auxiliary seat portion 21 is rotated backward.

  Next, as shown in FIG. 2, the connecting plate 25 is fitted into the recessed portion 28 of the opened back door 11, and the connecting pipe 32 is locked in the locking groove 28b. Then, a foot pad 29 is attached on the back surface of the back door 11 and put on the connecting plate 25. Further, the lower end portion of the leg member 30 is fitted into the fixing groove 15 on the vehicle body floor. As a result, the auxiliary seat portion 21 and the auxiliary backrest portion 22 are supported between the backrest portion 13 of the rear seat 12 and the back door 11 and are also supported by the vehicle body floor 14 via the leg members 30. In this state, the auxiliary seat 20 is in use.

  The user of the auxiliary seat 20 can sit on the foot pad 29 on the back door 11 while sitting on the auxiliary seat 21 and leaning on the upper back of the auxiliary backrest 22.

  When the auxiliary seat 20 is switched from the use state to the non-use state, contrary to the above, the auxiliary seat portion 21 is lifted, the connection plate 25 is removed from the recess 28 of the back door 11, and the connection pipe 32 is removed from the locking groove 28b. While removing, the leg member 30 is pulled out from the fixed groove 15. Thereafter, the auxiliary seat portion 21 is folded and overlapped to the auxiliary backrest portion 22 side.

  Next, the connecting plate 25 is rotated and folded between both frames 24, and the leg member 30 is rotated and folded between both frames 24.

  Next, the auxiliary seat portion 21 and the auxiliary backrest portion 22 are lifted and the lower ends thereof are inserted into the pockets 16 of the backrest portion 13, and then the upper portions of the auxiliary seat 20 and the auxiliary backrest portion 22 are fixed to the backrest portion 13 by a lock mechanism. .

  Finally, when the backrest 13 is switched from the forward tilt state to the rear tilt state and the front and rear directions of the headrest 13b are returned to the original direction, the auxiliary seat 20 is not used.

  The embodiment described above in detail has the following effects.

  (1) During use, the auxiliary seat portion 21 and the auxiliary backrest portion 22 are installed in a deployed state on the front side of the back door 11, and when not in use, the auxiliary seat portion 21 and the auxiliary backrest portion 22 of the back seat portion 13 of the rear seat 12 are used. It was made to fold on the back surface 13a. And the auxiliary seat part 21 and the back door 11 were connected by the connection plate 25 of the auxiliary seat part 21 and the recessed part 28 of the back door 11 in the open state of the back door 11.

  Accordingly, when the auxiliary seat 20 is not used, the auxiliary seat portion 21 and the auxiliary backrest portion 22 are folded on the back surface 13a of the backrest portion 13 of the rearmost seat 12, so that the auxiliary seat 20 can occupy a wide space in the vehicle interior. Absent. On the other hand, at the time of use, the user can extend his / her leg to the back of the back door 11, and the user can be seated in a comfortable posture.

  (2) The auxiliary seat portion 21 is supported on the vehicle body floor 14 by the leg member 30 connected between the front ends of the auxiliary seat portion 21. For this reason, compared with the structure which does not provide the leg member 30, the structural strength of the auxiliary seat part 21 can be weakened. Accordingly, the user can be seated at a position away from the vehicle body floor 14 without increasing the structural strength by increasing the cross-sectional area of the frame 24 or increasing the thread of the net 26.

  (3) The leg member 30 is connected to the auxiliary seat portion 21 so as to be rotatable. When not in use, the leg member 30 is folded together with the auxiliary seat portion 21 and the auxiliary backrest portion 22 to the back surface 13a side of the backrest portion 13. Therefore, the space occupied by the auxiliary seat 20 when not in use can be made narrower.

  (4) Since the auxiliary backrest 22 is configured by the net 26, the space occupied when not in use is smaller. Moreover, since the auxiliary backrest part 22 becomes lightweight, switching between a use state and a non-use state can be performed easily.

(Second Embodiment)
Next, a second embodiment embodying the present invention will be described with reference to FIGS. Only the configuration different from the first embodiment will be described.

  As shown in FIG. 12, in the auxiliary seat 20 of this embodiment, the auxiliary seat portion 21 includes an upper lid 40 placed on the vehicle body floor 14 and a seat pad 41 fixed on the upper lid 40. The As shown in FIG. 11, when the auxiliary seat portion 21 is not used, the seat pad 41 is concealed in the rear housing portion 17 for the tool formed on the vehicle body floor 14, and the upper lid 40 is provided with the rear housing portion. 17 is the upper lid.

  Further, the auxiliary backrest portion 22 is constituted by the backrest portion 13 of the rearmost seat 12, and the backrest portion 13 is removed from a predetermined position with respect to the seat portion 18 of the rearmost seat 12 and the front and rear directions are reversed. It is used in a state where it is arranged at a predetermined position with respect to the auxiliary seat portion 21. That is, the auxiliary backrest part 22 has a pair of support pieces 42 protruding downward from the lower end, and a pair of support holes 19 into which the support pieces 42 can be fitted are formed on the vehicle body floor 14. The auxiliary backrest portion 22 is supported at a predetermined position on the vehicle floor 14 with respect to the auxiliary seat portion 21 by inserting both support pieces 42 into the support holes 19 in a state of being directed rearward.

  A foot pad 29 is disposed on the back surface of the back door 11. The foot pad 29 may be fixed to the back surface of the back door 11 or may be removable.

  In this embodiment, in order to switch the auxiliary seat 20 from the non-use state to the use state, first, after opening the back door 11, the auxiliary seat portion 21 is removed from the vehicle body floor 14 and turned upside down. Mount on the vehicle body floor 14 again. As a result, the auxiliary seat portion 21 is installed on the front side of the back door 11.

  Next, after removing the backrest 13 of the rear seat 12 from the seat 18 and reversing the front-rear direction, both support pieces 42 of the backrest 13 in this state are inserted into the support holes 19 on the vehicle body floor 14. The backrest 13 is made independent on the vehicle body floor 14. As a result, the auxiliary backrest 22 is installed on the front side of the auxiliary seat 21. In this state, the auxiliary seat 20 is switched from the non-use state to the use state.

  The user of the auxiliary seat 20 sits on both legs on the foot pad 29 on the back door 11 while sitting on the auxiliary seat portion 21 and leaning on the auxiliary backrest portion 22. Can do.

  In order to switch the auxiliary seat 20 from the use state to the non-use state, first, the auxiliary backrest portion 22 is lifted, the support pieces 42 are pulled out from the support holes 19 of the vehicle body floor 14, and the front and rear directions are reversed. The auxiliary backrest 22 is attached to the seat 18. As a result, the auxiliary backrest 22 returns to the backrest 13 of the rear seat 12.

  Finally, after the auxiliary seat portion 21 is removed from the vehicle body floor 14 and turned upside down, the auxiliary seat portion 21 is attached to the vehicle body floor 14 again. As a result, the auxiliary seat portion 21 is stored in the vehicle body floor 14.

  With the above, the auxiliary seat 20 is switched from the use state to the non-use state.

  This embodiment has the following effects in addition to the effect described in (1) of the first embodiment.

  (5) As the auxiliary seat portion 21, the upper lid 40 of the rear housing portion 17 is turned upside down. For this reason, the auxiliary seat portion 21 is easily switched between the use state and the non-use state, and does not occupy the space in the vehicle compartment when not in use.

  (6) Since the backrest 13 of the rear seat 12 is used as the auxiliary backrest 22, the space occupied by the auxiliary seat 20 can be further narrowed when not in use.

  (7) The backrest 13 of the rearmost seat 12 is used as the auxiliary backrest 22. Therefore, the comfort of the auxiliary seat 20 can be improved.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIGS. Only the configuration different from the first embodiment will be described.

  As shown in FIG. 14, in the auxiliary seat 20 of this embodiment, the auxiliary seat portion 21 is configured by a seat plate 50 connected to the back surface 13 a of the backrest portion 13 of the rearmost seat 12. The seat plate 50 is rotatably connected to the lower portion of the back surface 13a of the backrest portion 13, and as shown in FIG. 13, when not in use, it is flipped up and fixed on the back surface 13a of the backrest portion 13. Is done. This fixing is performed by a lock mechanism (not shown). In use, the seat plate 50 is installed on the front side of the open back door 11, and is fitted into a notch 11 a formed on the rear front end of the back door 11 so as to fit the auxiliary seat portion 21 and the back door 11. Connect between That is, the auxiliary seat part 21 and the back door (notch part 11a) 11 constitute a connecting means. Moreover, the auxiliary backrest part 22 is the backrest part 13 of the last side seat 12, and the back surface 13a is used for this backrest part 13 in a forward tilted state. When the auxiliary seat 20 is used, the cushion 51 is disposed on the seat plate 50 and the back door 11.

  In this embodiment, in order to switch the auxiliary seat 20 from the non-use state to the use state, first, the back door 11 is opened, and the backrest 13 of the rear seat 12 is switched from the rearward tilt state to the forward tilt state. Further, the headrest 13b of the backrest part 13 is attached to the backrest part 13 by changing the front and back directions.

  Next, the seat plate 50 is rotated rearward from the back surface 13 a of the backrest portion 13, and the tip thereof is fitted into the notch portion 11 a of the back door 11. Finally, the cushion 51 is placed on the seat plate 50 and the back door 11. Thus, the auxiliary seat 20 is switched from the non-use state to the use state.

  The user of the auxiliary seat 20 sits on both legs on the foot pad 29 on the back door 11 while sitting on the auxiliary seat portion 21 and leaning on the auxiliary backrest portion 22. Can do.

  In order to switch the auxiliary seat 20 from the use state to the non-use state, first, after removing the cushion 51 from above the seat plate 50 and the back door 11, the seat plate 50 is rotated forward and upward, and the back surface of the backrest portion 13. Secure on 13a. Finally, the backrest 13 is returned from the forward tilt state to the rear tilt state, the front and rear directions of the headrest 13b are restored, and the back door 11 is closed. As described above, the auxiliary seat 20 is switched from the use state to the non-use state.

  This embodiment has the effect described in (1) of the first embodiment.

(Other embodiments)
In addition, this embodiment can also be changed and embodied as follows.

  In the first embodiment, a fabric such as canvas is used instead of the net 26.

  -In 3rd Embodiment, the seat board 50 is connected on the back surface of the back door 11, and the seat board 50 is installed in the front side of the back door 11 at the time of use, and it sits on the back surface of the back door 11 when not in use. It is assumed that the plate 50 is folded.

  Hereinafter, the technical idea grasped from the above embodiment will be described.

  (1) The auxiliary seat device for a vehicle according to claim 2, wherein the leg member is rotatable about a connecting portion with respect to the auxiliary seat portion, and the backrest together with the auxiliary seat portion and the auxiliary backrest portion when not in use. An auxiliary seat device for a vehicle, which is folded on the back surface of the vehicle.

  (2) A vehicle auxiliary seat device provided with a back door that pivots downwardly around a lower end portion, the auxiliary backrest portion being constituted by the back surface of the backrest portion of the rearmost seat, and the back door The auxiliary seat portion is provided, and the auxiliary seat portion is installed on the front side of the back door when in use, and the auxiliary seat portion is folded on the back surface of the back door when not in use. An auxiliary seat device for a vehicle. Such a configuration also has the same effect as the third embodiment.

The perspective view which shows the auxiliary seat of 1st Embodiment. Similarly side view. The perspective view which shows the auxiliary seat part and auxiliary backrest part at the time of non-use. The perspective view which shows an auxiliary seat part and an auxiliary backrest part. The longitudinal cross-sectional view which shows a connection board. (A), (b) is a side view which shows the connection part of a leg member and a flame | frame both. The perspective view which shows a part of back surface of a back door. The side view which shows the auxiliary seat at the time of non-use. The side view which shows the auxiliary seat at the time of switching from a use time to use. The side view which shows the auxiliary seat at the time of switching from a use time to use. The side view which shows the time of use of the auxiliary seat of 2nd Embodiment. The side view which shows the time of use similarly. The side view which shows the time of use of the auxiliary seat of 3rd Embodiment. The side view which shows the time of use similarly.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Vehicle, 11 ... Back door, 11a ... Notch part which comprises a connection means, 12 ... Last side seat, 13 ... Backrest part, 13a ... Back surface, 14 ... Vehicle body floor, 17 ... Rear part accommodating part, 18 ... Seat part , 20 ... auxiliary seat, 21 ... auxiliary seat, 22 ... auxiliary backrest, 23 ... footrest, 24 ... frame constituting auxiliary seat, 25 ... connecting plate constituting connecting means, 26 ... auxiliary seat, and Net as sheet-like material constituting auxiliary backrest part, 28b... Engaging groove constituting coupling means, 30. Leg member constituting auxiliary seat part, 32 .. connecting pipe constituting coupling means, 40 .. auxiliary seat part. A seat plate as an auxiliary seat part constituting a connecting means.

Claims (5)

An auxiliary seat device for a vehicle provided with a back door that pivots downward about a lower end portion and opens.
An auxiliary backrest connected to the back of the backrest of the rear seat, an auxiliary seat connected to the auxiliary backrest, and a footrest configured by the back side of the back door ,
The auxiliary seat part and the auxiliary backrest part are installed in a deployed state on the front side of the back door when in use, and the auxiliary backrest part and the auxiliary seat part are configured to be folded on the back surface of the backrest part when not in use.
Wherein the auxiliary seat and the footrest section, in the open state of the back door, connecting the auxiliary seat portion with a rear end portion is engaged with the foot-rest portion of the auxiliary seat to the footrest An auxiliary seat device for a vehicle, characterized in that a connecting means is provided.   The auxiliary seat device for a vehicle according to claim 1, wherein a leg member that supports the auxiliary seat portion on a vehicle body floor is connected to the auxiliary seat portion. An auxiliary seat device for a vehicle provided with a back door that pivots downward about a lower end portion and opens.
An auxiliary backrest portion constituted by the back surface of the backrest portion of the rear seat, an auxiliary seat portion connected to the auxiliary backrest portion, and a footrest portion constituted by the back side of the back door ,
The auxiliary seat is installed on the front side of the back door when in use, and the auxiliary seat is folded on the back of the backrest when not in use.
Wherein the auxiliary seat and the footrest section, in the open state of the back door, connecting the auxiliary seat portion with a rear end portion is engaged with the foot-rest portion of the auxiliary seat to the footrest An auxiliary seat device for a vehicle, characterized in that a connecting means is provided. An auxiliary seat device for a vehicle provided with a back door that pivots downward about a lower end portion and opens.
An auxiliary backrest portion constituted by the backrest portion of the rear seat, and an auxiliary seat portion installed on the rear side of the auxiliary backrest portion;
In use, the auxiliary seat is installed on the vehicle floor and the auxiliary backrest is removed from a predetermined position relative to the seat of the rearmost seat and installed at a predetermined position on the vehicle floor corresponding to the auxiliary seat. An auxiliary seat device for a vehicle, wherein the auxiliary seat portion is removed from the floor of the vehicle body and the auxiliary backrest portion is returned to a predetermined position corresponding to the seat portion.   The auxiliary seat device for a vehicle according to claim 4, wherein the auxiliary seat portion is used with the upper lid of the rear housing portion being reversed.

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