JP2019142294A - Seat structure for vehicle - Google Patents

Abstract

A forward-facing vehicle seat structure that can be transformed into a flat bed by a simple operation is provided. A foldable vehicle seat structure (1) includes a seat cushion (5) rotatably attached to a vehicle body side wall (3), and a seat back (1) rotatably attached to a rear edge of the seat cushion (5). 7, an ottoman 9 rotatably attached to the front edge of the seat cushion 5, a cushion support leg 15 provided at an end of the seat cushion 5 on the vehicle body side, and a rearward tilt position of the seat back 7. In the unfolded position of the ottoman 9, the back support shelf 21 provided on the side wall 3 of the vehicle body to support the outside of the vehicle body of the seat back 7 and the back support leg 17 provided on the inner end of the vehicle body of the seat back 7 An ottoman support shelf 22 provided on the side wall 3 of the ottoman 9 to support the outer side of the ottoman 9 and an ottoman 9 provided at the end of the ottoman 9 on the inner side of the vehicle body. Including a man supporting leg 18, the sheet 2 with a. [Selection] Figure 1

Description

  The present invention relates to a foldable vehicle seat structure including a seat that can be changed into a flat bed by being unfolded.

  Conventionally, a horizontal seat has been adopted for a camper, and for example, a flat bed making using a seat surface of a bench seat in a horizontal orientation has been performed. However, providing a vehicle seat in the vehicle sideways has been pointed out as a safety problem at the time of a collision, etc. In Japan, since July 26, 2017, a new passenger car equipped with a sideways seat has been introduced. Registration was forbidden on the front. Accordingly, it has become impossible for a passenger car to provide a flat bed by using a sideways seat as it is in the conventional manner.

  In a large automobile, there is an example in which both of two vertically oriented seats arranged in tandem behind the driver's seat are continuously provided in a flat state by reclining the seat back and provided as a flat bed. However, unless two sheets are arranged in tandem in this way, a sufficiently long flat bed cannot be provided, and it has been difficult to adopt this method in a small automobile. Under such circumstances, there is a need for a vehicle seat that can be deployed on a flat bed in a single seat with a longitudinal seat.

  Patent Document 1 proposes an automobile seat in which the seat back is moved back to substantially the same plane as the seat cushion and can be turned upright to the body panel side positioned outside the seat cushion frame. ing. Patent Document 2 proposes that a ottoman (foot rest) is also used to provide a flat bed in combination with the seat back. In Patent Document 3, when used as a seat, normally, two seat cushions are used in a stacked form, and one seat folded on the upper side is unfolded forward and fixed. A sheet that is combined with the back of the seat back to form a long flat bed has been proposed.

Japanese Utility Model Publication No. 63-59043 Japanese Utility Model Publication No. 4-35930 Japanese Utility Model Publication No.59-85736

  However, in the invention described in Patent Document 1, it is difficult to provide a long bed only because the seat back can be moved backward. In the invention described in Patent Document 2, the ottoman used for the bed is originally arranged in front of the seat surface with a size smaller than the height from the vehicle body floor surface to the seat surface, and there is a limit to the length in the vertical direction. For this reason, even if the ottoman length is added to the seat cushion and the seat back, it is difficult to provide a long bed (e.g., about 1.8 meters enough for a person to sleep). In the invention described in Patent Document 3, a separate rotation mechanism is not provided for the development of the folded portion of the seat cushion, and a simple seat cushion member is folded and expanded. Therefore, the width of the seat is set to the full width of the vehicle, and the seat is fixed by the locking member on the side wall of the vehicle body, which limits the size and usage of the bed. That is, the invention according to Patent Document 3 is difficult to apply to a single seat.

  In view of such a background, it is an object of the present invention to provide a vehicle seat structure that can be transformed from a vertically oriented single seat into a vertically long flat bed by a simple operation.

  In order to solve such a problem, an embodiment of the present invention is a foldable vehicle seat structure (1) around an axis (5X) that faces the vehicle body side wall (3) in the front-rear direction. A seat cushion (5) mounted pivotably between a generally horizontal seating position and a standing upright position, and an upright axis (7X) oriented laterally with respect to the rear edge of the seat cushion. A seat back (7) mounted pivotably between a position and a generally horizontal rearward tilt position, and generally horizontally forward about an axis (9X) oriented transversely to the front edge of the seat cushion. And an ottoman (9) rotatably attached between a deployed position extending to the seat cushion and a storage position folded on the lower surface of the seat cushion, and foldable at an end of the seat cushion on the inner side of the vehicle body Ku A support support leg (15), a back support shelf (21) provided on the side wall of the vehicle body to support the outside of the vehicle body of the seat back at a rearward tilt position of the seat back, and an end of the seat back on the vehicle body inside A back support leg (17) that is foldable on the ottoman, an ottoman support shelf (22) provided on the side wall of the ottoman to support the outside of the ottoman at the unfolded position of the ottoman, and the ottoman It includes a seat (2) provided with an ottoman support leg (18) foldably provided at an end portion on the inner side of the vehicle body.

  According to this configuration, the seat back can be rotated from an upright position to a substantially horizontal rearward tilt position with respect to the seat cushion, and the ottoman can be rotated to a deployment position that extends substantially horizontally forward. The seating seat form can be transformed into a flat bed form. The ottoman is folded and stored on the lower surface of the seat cushion, and the seat cushion is pivotally attached to the side wall of the vehicle body. Therefore, the ottoman is not restricted to the height from the vehicle body floor surface to the seat surface. Dimension can be secured. Thereby, the flat bed of sufficient vertical dimension which matched seat back length and ottoman length with the seat cushion length in a flat bed form can be provided. The seat cushion is supported on the left and right sides by the vehicle body side wall and the support legs. The ottoman is held on a support shelf on the side wall of the vehicle body, and is supported on an ottoman support leg on the inside of the vehicle body. The seat back is supported by a support shelf on the side wall of the vehicle body and supported by a back support leg on the inside of the vehicle body. As described above, the seat cushion, the seat back, and the ottoman are supported with sufficient support rigidity at a predetermined height that forms a flat bed. The seat back tilts backward from the upright position and rotates to the rear tilt position on the same plane as the cushion surface. The member for rotation can be disposed at the connecting portion between the upper surface of the seat cushion and the front surface of the seat back at the rear edge of the seat cushion. On the other hand, the ottoman rotates from a storage position folded on the lower surface of the seat cushion to a deployed position extending substantially horizontally. The member for rotation can be disposed at the connecting portion between the lower surface of the seat cushion and the lower surface of the ottoman at the front edge portion of the seat cushion. A hinge member is sufficient for all the rotating members. The support of the seat back and the ottoman after being transformed into the flat head form is supported by the respective support shelves and support legs, and a simple rotating mechanism or fixing mechanism such as a well-known rotating ratchet mechanism can be used. Transformation to a flat bed configuration is easy.

  In the above configuration, the seat back (7) is attached to the seat cushion so as to be further rotatable between the upright position and a folded position folded on the upper surface of the seat cushion (5). Rotating between a seat back lower part (11), a straight position extending straight with respect to an upper edge of the seat back lower part, and a folding position folded on a rear surface of the lower part of the seat back It has a seat back upper part (13) attached so that it is possible.

  According to this configuration, the seat back has two members, an upper seat back and a lower seat back. The lower seat back can be folded over the upper surface of the seat cushion, and the upper seat back is the lower seat back. Since the sheet can be folded over the back surface of the sheet, there is an effect that the size when the sheet is stored can be reduced.

  Moreover, the said structure WHEREIN: The said back support shelf (21) is a wheel house, It is characterized by the above-mentioned.

  According to this configuration, it is not necessary to provide the assembly structure of the back support shelf on the side wall of the vehicle body. In addition, a wide support shelf is provided on the upper surface of the relatively large wheel house, and the seat back is stably supported in the form of a flat bed.

  In the above configuration, the back support leg (17) and the ottoman support leg (18) have a plate shape extending in the front-rear direction when in use.

  According to this configuration, the back support legs and the ottoman support legs have a plate shape extending in the front-rear direction, so that their strength is increased and the support rigidity is increased. Thereby, the sheet is stabilized in the form of a flat bed, and the sleeping comfort is improved.

  Moreover, the said structure WHEREIN: The said cushion support leg (15) has a pair of pole-shaped leg (14) front and rear provided in the front end and rear end of the lower surface of a seat cushion at the time of use.

  According to this configuration, when the cushion support legs are used, the space below the seat cushion can be accessed from the inside of the vehicle body, so that luggage or the like can be easily stored. In addition, the cushion support legs can be easily stored in the folded state.

  In the above configuration, the recess (23) is provided at a position corresponding to the lower ends of the cushion support leg (15), the back support leg (17) and the ottoman support leg (18) on the vehicle body floor surface (19). It is characterized by being arranged.

  According to this configuration, when the support leg is changed from the folded state to the used state, the alignment is easy, and the seat can be more easily transformed into a flat bed form. In addition, the support leg is held in the recess during use, and the seat cushion, the seat back, and the ottoman are more stably held in a flat bed state.

  In the above configuration, the ottoman (9) has a width substantially the same as the width of the seat cushion (5), and the front and rear pole-shaped legs (14) in the use position are in the storage position. Corresponding recesses (16) for storing the front and rear pole-like legs on the front and rear edges of the lower surface of the seat cushion, have corresponding notches (9a) at the front and rear ends inside the corresponding vehicle body. The front and rear pole-shaped legs are rotatable between a folded position in the storage recess and a deployed position that is substantially parallel to the seat cushion inside the seat cushion body. Features.

  According to this configuration, even if the width of the ottoman is the same as that of the seat cushion, the ottoman can be stored on the lower surface of the seat cushion without interfering with the pole-shaped legs, and the flat bed width can be made constant in the vertical direction.

  Further, in the above configuration, the seat (2) is attached to the left and right vehicle body side walls (3) facing each other in a pair of left and right with a gap (31) through which a person can pass. To do.

  According to this configuration, it is possible to walk through between the left and right seats even when the seats disposed on the left and right sides are used as seating seats or as flat beds.

  In the above-described configuration, the seat cushion (5), the ottoman (9), and the seat back (7) in the left and right seats (2) extend in the longitudinal direction on the inner end surfaces of the vehicle body. A gap filling member (34) formed with grooves (32), having a width corresponding to the gap (31), and having left and right protrusions (33) engaged with the grooves of the left and right sheets. The gap filling member further includes a plate-like base member (25) integrally including the left and right protrusions, and a cushion member (26) forming a mat surface.

  According to this configuration, if the gap is filled by the gap filling member and the left and right sheets are formed in a flat bed form with the mat surface of the gap filling member facing up, a full flat bed in which the left and right sheets are continuous is provided. be able to. Further, when the left and right seats are in the seating seat use state, a bench seat in which the left and right seats are continuous can be provided.

  In the above configuration, the gap filling member (34) includes a front gap filling member (34F) provided between the left and right seat cushions (5) and the left and right ottomans (9), and the left and right seat backs. And a rear gap filling member (34R) provided between (7), and a cup holder (35) is recessed on the surface of the base member (25) of the front gap filling member. And

  According to this configuration, a comfortable itinerary can be provided by forming the cup holder between the left and right seats when the bench seat is in use. Further, when the left and right seats are in the seating seat use state, it is not necessary to store the gap filling member in another place, and the vehicle interior space can be used effectively.

  Thus, according to the present invention, there is provided a comfortable vehicle seat structure that can be transformed from a vertically oriented single seat to a sufficiently long flat bed by a simple operation.

The perspective view which looked at the sheet | seat of the vehicle seat structure which concerns on embodiment from the front upper direction by the compartment side The perspective view which looked at the seat concerning an embodiment from the back lower part of the passenger compartment side The perspective view which looked at the sheet | seat of the flat bed form which concerns on embodiment from the front upper direction by the compartment side Explanatory drawing of the deformation | transformation procedure to the flat bed form of the sheet | seat which concerns on embodiment Explanatory drawing of the deformation | transformation procedure to the flat bed form of the sheet | seat which concerns on embodiment Explanatory drawing of the deformation | transformation procedure to the flat bed form of the sheet | seat which concerns on embodiment Explanatory drawing of the deformation | transformation procedure to the flat bed form of the sheet | seat which concerns on embodiment Explanatory drawing of the deformation | transformation procedure to the flat bed form of the sheet | seat which concerns on embodiment Explanatory drawing of the deformation | transformation procedure to the flat bed form of the sheet | seat which concerns on embodiment Explanatory drawing of the deformation | transformation procedure to the flat bed form of the sheet | seat which concerns on embodiment The perspective view which shows the 1st accommodation form of the sheet | seat which concerns on embodiment. The perspective view which shows the 2nd accommodation form of the sheet | seat which concerns on embodiment. The perspective view which shows the 3rd accommodation form of the sheet | seat which concerns on embodiment. The perspective view of the twin seat form of the vehicle seat structure which concerns on embodiment The perspective view of the twin flat bed form of the vehicle seat structure which concerns on embodiment The perspective view of the gap filling member of the vehicle seat structure according to the embodiment The perspective view of the full flat bed form of the vehicle seat structure which concerns on embodiment The perspective view of the bench seat form of the vehicle seat structure which concerns on embodiment

  Hereinafter, an embodiment of a vehicle seat structure 1 according to the present invention will be described with reference to the drawings. In the following description, the front-rear and left-right directions and the up-down direction are defined based on the traveling direction of the vehicle to which the vehicle seat structure 1 is applied. Further, the inside of the vehicle body and the outside of the vehicle body are determined based on the center in the left-right direction of the vehicle. Regarding the front and back of the seat member, the open surface closer to the seated person seated on the vehicle seat is referred to as the front surface, and the surface farther from the seated person on the opposite side of the front surface is referred to as the back surface.

  As shown in FIGS. 1 and 2, the vehicle seat structure 1 has at least one seat 2 provided in a passenger compartment. The seat 2 is configured as a single seat, and is disposed vertically adjacent to the left vehicle body side wall 3. The seat 2 includes a seat cushion 5 having a rectangular shape in plan view and attached to the left vehicle body side wall 3 by a hinge 4 so as to be rotatable around a first axis 5X facing in the front-rear direction. The seat cushion 5 is rotatable between a substantially horizontal seating position and an upright standing position. A seat back 7 is attached to the rear edge of the seat cushion 5 so as to be rotatable around a second axis 7 </ b> X facing in the lateral direction by a hinge 6. The seat back 7 is rotatable between an upright position and a substantially horizontal rearward tilt position, and is further rotatable between an upright position and a folding position folded on the upper surface of the seat cushion 5. Yes. An ottoman 9 is attached to the front edge of the seat cushion 5 so as to be rotatable around a third axis 9 </ b> X facing in the lateral direction by a hinge 8. The ottoman 9 is rotatable between a deployed position that extends substantially horizontally forward and a storage position that is folded on the lower surface of the seat cushion 5. The seat cushion 5, the seat back 7, and the ottoman 9 have the same width (maximum width).

  In this way, the seat back 7 can be rotated from the upright position to the substantially horizontal rearward tilt position, and the ottoman 9 can be rotated from the storage position to the deployed position extending substantially horizontally forward. Can be transformed from the illustrated seating configuration into a configuration in which these three members (5, 7, 9) are flat as shown in FIG. 3 (hereinafter referred to as a flatbed configuration).

  The seat back 7 is attached to a seat back lower part 11 connected to the seat cushion 5 by a hinge 6 and a hinge 12 so as to be rotatable around a fourth axis 13X that faces the upper edge of the seat back lower part 11 in the lateral direction. And a seat back upper portion 13. The seat back upper portion 13 is rotatable between a straight position extending straight with respect to the seat back lower portion 11 and a folding position folded with respect to the rear surface of the seat back lower portion 11.

  A foldable cushion support leg 15 having a pair of front and rear pole-shaped legs 14 provided at the front end and the rear end of the lower surface (back surface) of the seat cushion 5 at the time of use is provided at the inner end of the seat cushion 5. Is provided. The cushion support leg 15 is also used when the seat 2 is in a flat bed configuration, and is also used when the seat 2 is in a seating seat configuration. Since the cushion support leg 15 is constituted by a pair of front and rear pole-like legs 14 in this way, the space below the seat cushion 5 can be accessed from the inside of the vehicle body when the cushion support leg 15 is used. Easy to accommodate. In addition, the cushion support legs 15 can be easily stored in the folded state.

  Front and rear storage recesses 16 (FIG. 7) for storing the front and rear pole-shaped legs 14 are formed on the front and rear edges of the lower surface of the seat cushion 5. The front and rear pole-shaped legs 14 extend parallel to the back surface of the seat cushion 5 in the storage recess 16 in the folded state, and extend in an upright direction with respect to the back surface of the seat cushion 5 in use. Further, the front and rear pole-shaped legs 14 can be further rotated inwardly from the position in use. Specifically, the front and rear pole-shaped legs 14 are located between a folding position along the back surface of the seat cushion 5 and a deployment position that is substantially parallel to the seat cushion 5 inside the vehicle body of the seat cushion 5 (that is, about It can be rotated in the range of 180 °.

  When the cushion support legs 15 are in the use position, notches 9a are formed at the front and rear end corners of the vehicle body corresponding to the cushion support legs 15 of the ottoman 9 in the storage position. Thereby, even if the width of the ottoman 9 is the same as the width of the seat cushion 5, the ottoman 9 can be stored on the lower surface of the seat cushion 5 without interfering with the cushion support legs 15. In addition, since the width | variety of the ottoman 9 is substantially the same as the width | variety of the seat cushion 5, the width | variety of the sheet | seat 2 made into the flat bed form can be made constant in the vertical direction (front-back direction). Further, since the front and rear pole-shaped legs 14 can be rotated further from the use position to the inside of the vehicle body, the ottoman 9 can be rotated between the storage position and the deployed position.

  Upper and lower back support legs 17, which form a plate shape that extends in the front-rear direction when in use, are provided at the inner ends of the seat back upper part 13 and the seat back lower part 11. In the folded state, the upper and lower back support legs 17 extend in parallel to the back surface of the corresponding seat back upper portion 13 or the seat back lower portion 11, and in use, with respect to the corresponding seat back upper portion 13 or the seat back lower portion 11. Extends upright. The upper and lower back support legs 17 are used when the seat 2 is in the form of a flat bed.

  At the end of the ottoman 9 on the inner side of the vehicle body, a foldable ottoman support leg 18 (FIGS. 3 and 7) having a plate shape extending in the front-rear direction when used is provided. The ottoman support leg 18 extends in parallel to the back surface of the ottoman 9 in the folded state, and extends in an upright direction with respect to the ottoman 9 in use. The ottoman support leg 18 has a height adjusting screw (not shown), and the support leg length can be adjusted to match the height from the vehicle body floor surface 19 determined by the first axis 5X. The ottoman support leg 18 is used when the seat 2 is in a flat bed configuration.

  When the upper and lower back support legs 17 and the ottoman support legs 18 are constituted by plate-like bodies extending in the front-rear direction, these strengths are increased and the support rigidity is increased. Thereby, the seat 2 is stabilized in the form of a flat bed, and the sleeping comfort is improved.

  A back support shelf 21 that supports the seat back upper portion 13 and the seat back lower portion 11 from below and an ottoman support shelf 22 that supports the ottoman 9 from below are integrally formed on the side wall 3 of the vehicle body. Even with this configuration, the seat 2 is stabilized in the form of a flat bed, and the sleeping comfort is further improved.

  Further, a back support shelf 21 that supports at least the seat back upper portion 13 of the seat back upper portion 13 and the seat back lower portion 11 is constituted by a wheel house. The back support shelves 21 may be provided individually, or a common common shelf that supports a plurality of members in common may be provided. With this configuration, it is not necessary to provide the assembly structure of the back support shelf 21 on the vehicle body side wall 3. Moreover, a wide support surface is provided on the upper surface of the relatively wide wheel house, and the support of the flat bed is more stable.

  The vehicle body floor 19 is provided with a recess 23 at a position corresponding to the lower end of the cushion support leg 15, the back support leg 17, and the ottoman support leg 18 when standing upright. These recesses 23 are convenient for alignment when the support legs (15, 17, 18) are changed from the folded state to the used state, and have an effect that the seat 2 can be more easily transformed into the flat bed configuration of FIG. . Further, when used in the form of a flat bed, the support legs (15, 17, 18) are held in the recesses 23, and the flat bed formed by the seat cushion 5, the seat back 7 and the ottoman 9 is more stably held. Suitable for.

  In the seat 2 configured as described above, the left and right side portions of the seat cushion 5 are supported by the left vehicle body side wall 3 and the cushion support legs 15. In the flat bed configuration shown in FIG. 3, the ottoman 9 is held on the ottoman support shelf 22 on the outside of the vehicle body, and supported on the ottoman support legs 18 on the inside of the vehicle body. The seat back 7 is supported on the back support shelf 21 on the outside of the vehicle body, and supported on the back support legs 17 on the inside of the vehicle body. Thus, the seat cushion 5, the seat back 7, and the ottoman 9 are supported at a predetermined height that forms a bed with sufficient support rigidity. Therefore, the support of the seat back 7 and the ottoman 9 after being transformed into the flat head form is supported by the respective support shelves (21, 22) and the support legs (17, 18), and the hinge members are sufficient for the rotating members. A rotating mechanism or a fixing mechanism that is easy to operate, such as a rotating ratchet mechanism, can be used, and deformation from a seating seat configuration to a flat bed configuration can be easily performed.

  The seat cushion 5, the seat back 7, and the ottoman 9 have a plate-like base member 25 and a cushion member 26 forming a mat surface, and are formed to have substantially the same thickness. This configuration is convenient for making these members (5, 7, 9) have a predetermined height that forms a flat bed.

<Sitting seat configuration>
The seating seat form of the seat 2 will be described with reference to FIG. The seat cushion 5 having a rectangular shape in plan view is disposed at a substantially horizontal seating position around a first axis 5X that faces the vehicle body side wall 3 in the front-rear direction. The cushion support legs 15 are also arranged upright with respect to the vehicle body floor surface 19 so as to come into contact with corresponding recesses 23 provided in the vehicle body floor surface 19 at positions upright with respect to the lower surface of the seat cushion 5. Has been. The seat back 7 is disposed substantially upright with respect to the seat cushion 5 around the second axis 7X, and the back support legs 17 are housed in the back of the seat back 7 (see FIG. 2). The seat back upper part 13 is disposed at a straight position extending straight around the fourth axis 13X. The ottoman 9 is disposed in the storage position around the third axis 9 </ b> X after the ottoman support legs 18 are stored in the ottoman 9 from the lower surface of the ottoman 9 to abut the lower surface of the seat cushion 5. The seat 2 configured as described above can be seated by an occupant as a vertically oriented single seat.

<Flatbed form>
The flat bed form of the sheet 2 will be described with reference to FIG. The seat cushion 5 having a rectangular shape in plan view is disposed at a substantially horizontal seating position around a first axis 5X that faces the vehicle body side wall 3 in the front-rear direction. The cushion support legs 15 are also arranged upright with respect to the vehicle body floor surface 19 so as to come into contact with corresponding recesses 23 provided in the vehicle body floor surface 19 at positions upright with respect to the lower surface of the seat cushion 5. Has been. The seat back 7 is disposed at a substantially horizontal rearward tilt position around the second axis 7X, and the back support leg 17 is provided at a position standing upright on the back surface of the seat back 7 (see FIG. 4) and in the wheel house of the vehicle body. The front surface of the seat back 7 and the upper surface of the seat cushion 5 form a flat surface. The ottoman 9 is deployed in a deployed position that extends substantially horizontally forward from the seat cushion 5 around the third axis 9X, and the ottoman support legs 18 are positioned upright with respect to the lower surface of the ottoman 9 and the vehicle body floor The upper surface of the ottoman 9 and the upper surface of the seat cushion 5 form a flat surface such that the upper surface of the ottoman 9 and the upper surface of the seat cushion 5 are arranged so as to be in contact with the corresponding recesses 23 provided on the surface 19. . Thus, the front surface of the seat back 7, the upper surface of the seat cushion 5, and the upper surface of the ottoman 9 together form a flat surface. The seat 2 configured as described above can be laid down by a passenger as a flat bed.

  If the vertical length of the rectangular seat cushion 5 is 45 cm, a long flat bed of 180 cm in total can be used. The seat 2 can be used as a vertical seat or a flat bed.

<Deformation from sitting seat form to flat bed form>
A procedure for changing the seat 2 from the seating seat configuration to the flat bed configuration will be described with reference to FIGS. As shown in FIG. 4, the occupant tilts the seat back 7 of the seat 2 around the second axis 7 </ b> X to a substantially horizontal seating position (first procedure). Next, as shown in FIG. 5, the occupant deploys the cushion support leg 15 to a deployment position that is substantially parallel to the seat cushion 5 after the seat cushion 5 is floated (second procedure). Next, as shown in FIG. 6, the occupant rotates the seat cushion 5 integrally with the seat back 7 and the ottoman 9 to the upright position about the first axis 5X (third procedure). Next, as shown in FIG. 7, the occupant deploys the ottoman 9 about the third axis 9 </ b> X to a deployment position where the ottoman 9 extends substantially horizontally forward (fourth procedure). Next, as shown in FIG. 8, the occupant deploys the cushion support leg 15 to a position standing upright with respect to the lower surface of the seat cushion 5 (fifth procedure). Next, as shown in FIG. 9, the occupant deploys all the back support legs 17 to a position where the back support legs 17 stand upright on the rear surface of the seat back 7 (sixth procedure). Finally, as shown in FIG. 10, the occupant lowers the seat cushion 5 around the first axis 5X together with the seat back 7 and the ottoman 9 to a substantially horizontal seating position (seventh procedure).

  Thus, the back support legs 17 are arranged upright with respect to the vehicle body floor surface 19 so as to abut against corresponding recesses 23 provided in the wheel house of the vehicle body, and the cushion support legs 15 are arranged on the vehicle body floor surface 19. The ottoman support legs 18 are in contact with the corresponding recesses 23 provided in the vehicle body floor surface 19 so as to be in contact with the corresponding recesses 23 provided in the vehicle body. Thus, the seat 2 is arranged upright with respect to the vehicle body floor surface 19 to complete the flat bed-shaped seat 2.

  As described above, the seat 2 can be deformed from the seating seat configuration to the flat bed configuration. In addition, from the vertical single seat to the vertical flat bed configuration, the rotation around the axis and the folding of the support legs (15, 17, 18) or It can be easily deformed only by deployment.

  The cushion support leg 15 is configured to be deployable at a deployment position that is substantially parallel to the seat cushion 5. In the second procedure shown in FIG. 5, the cushion support leg 15 is placed at a deployment position that is substantially parallel to the seat cushion 5. By deploying, in the fourth procedure shown in FIG. 7, when the ottoman 9 is extended approximately horizontally forward, the cushion support leg 15 does not become an obstacle and can extend approximately horizontally.

<First storage configuration>
A first storage form that is one of the storage forms of the seat 2 will be described with reference to FIG. The rectangular seat cushion 5 in a plan view is disposed in an upright position around the first axis 5X. The cushion support leg 15 is folded and stored on the lower surface of the seat cushion 5. The arrangement of the seat back 7 and the seat cushion 5 is the same as the flat bed configuration. The arrangement of the ottoman 9 and the seat cushion 5 is the same as the flat bed configuration. The seat 2 configured as described above can be housed in a compact form so as to remain in a protrusion approximately the thickness of the seat cushion 5 along the front and rear of the vehicle body side wall 3.

<Second storage configuration>
A second storage configuration that is one of the storage configurations of the sheet 2 will be described with reference to FIG. In the second storage configuration, the seat back upper part 13 is disposed at a folding position where the seat back upper part 13 is folded around the rear surface of the seat back lower part 11 around the fourth axis 13X, and the ottoman 9 is placed around the third axis 9X. 5 is disposed at the storage position folded on the lower surface of the sheet. Others are the same as the second storage configuration. The seat 2 deformed from the first storage configuration in the above-described arrangement remains compactly protruding about the thickness of the seat cushion 5 along the front and rear of the vehicle body side wall 3, and the vertical length remains half of the flat bed configuration. Can be stored in various forms.

<Third storage configuration>
A third storage configuration that is one of the storage configurations of the sheet 2 will be described with reference to FIG. In the third storage configuration, the seat cushion 5 is disposed at a substantially horizontal seating position around the first axis 5X, and the seat back 7 is in a folded position where the seat back 7 is folded around the upper surface of the seat cushion 5 around the second axis 7X. The seat back upper part 13 is arranged at a folding position where the seat back upper part 13 is continuously folded with respect to the rear surface of the seat back lower part 11 around the fourth axis 13X. The seat 2 modified from the first storage configuration in the above arrangement can be stored in a compact configuration in which the storage height remains on the seating surface of the seat cushion 5 and the vertical length also remains on the seating surface vertical length of the seat cushion 5. .

  Thus, the seat back 7 can be rotated from an upright position to a substantially horizontal rearward tilt position with respect to the seat cushion 5, and the ottoman 9 can be rotated to a deployed position that extends substantially horizontally forward. Therefore, it can be changed from a seating seat form to a flat bed form (FIG. 3) described later. Since the ottoman 9 is folded and stored on the lower surface of the seat cushion 5 and the seat cushion 5 is rotatably attached to the side wall 3 of the vehicle body, the ottoman 9 is limited to the height from the vehicle body floor surface 19 to the seat surface. The vertical dimension can be secured. Thereby, the flat bed of sufficient vertical dimension which matched seat back length and ottoman length with the seat cushion length in a flat bed form can be provided. Further, since the seat back 7 is folded over the seat cushion 5 on the upper surface of the seat cushion 5, it is convenient for storing the seat 2.

  The seat back 7 has two members, a seat back upper portion 13 and a seat back lower portion 11, and the seat back lower portion 11 can be folded with respect to the upper surface of the seat cushion 5. Since it can be folded with respect to the back surface of the back lower part 11, the size of the sheet | seat 2 in a 2nd accommodation form (FIG. 12) and a 3rd accommodation form (FIG. 13) can be made small.

  As described above, the cushion support leg 15 has a pair of pole-shaped legs 14, so that an effect more suitable for storage can be obtained. When the ottoman 9 is stored or when the ottoman 9 is extended horizontally from the storage position, an effect that interference does not easily occur can be obtained.

<Twin vertical seat configuration>
In the vehicle seat structure 1 according to the embodiment, as shown in FIG. 14, the two seats 2 are attached to the left and right vehicle body side walls 3 facing each other in a pair on the left and right sides with a gap 31 through which a person can pass. ing. For example, the seat 2 of the vehicle seat structure 1 can be deployed in the form of a flat seat in the vertical direction, so that a person can pass even in a limited interior space as shown in FIG. A pair of left and right can be configured with a gap 31 therebetween. As a result, a person can walk through between the left and right seats 2, which is convenient for the exchange between the front and rear passengers, and access to the rear luggage space can be performed without getting off.

<Twin flat bed configuration>
As shown in FIG. 15, if the seats 2 are attached to the left and right vehicle body side walls 3 facing each other with a pair of left and right sides separated by a gap 31 through which a person can pass, each seat 2 is brought into a flat bed configuration. Even if it is deformed and transformed into a twin flat bed, people can walk through and access to the back luggage space can be done without getting off. Compared to a single flat bed (full flat bed form, which will be described later), the twin flat bed form is convenient for friends and heterosexual families and offers a variety of passenger configurations. To do.

<Full flat bed configuration>
As shown in FIG. 15, the vehicle seat structure 1 according to the embodiment extends in the longitudinal direction on the inner end surfaces of the seat cushion 5, the ottoman 9, and the seat back 7 in the left and right seats 2. A groove 32 is formed. As shown in FIG. 16, the gap 31 has a width corresponding to the gap 31 and has left and right protrusions 33 that engage with the grooves 32 of the left and right sheets 2 on both sides. , 34R). As a result, the gap 31 can be filled as shown in FIG. The gap filling member 34 also includes a plate-like base member 25 and a cushion member 26 forming a mat surface, and is formed to have substantially the same thickness as the seat cushion 5 and the like. In the vehicle seat structure 1 shown in FIG. 15, the seat 2 is attached to the left and right vehicle body side walls 3 facing each other in a pair of left and right sides with the same gap 31 as the gap filling member 34. 14, two vertically oriented flat beds are formed, and the gap filling member 34 is inserted from the front or rear of the twin bed, and the grooves 32 and the projections 33 are engaged so that all mat surfaces are substantially flat. Formed. As described above, the end surfaces of the seat cushion 5, the ottoman 9 and the seat back 7 on the inner side of the vehicle body are formed with the grooves 32 extending in the longitudinal direction, and include the gap filling members 34 that can be engaged with the grooves 32. It can be transformed into a full flat bed configuration.

<Bench seat configuration>
As shown in FIG. 16, the gap filling member 34 is a front gap filling member 34F provided between the left and right seat cushions 5 and the left and right ottomans 9 in accordance with the longitudinal length of the seat cushion 5 and the ottoman 9 together. And a rear gap filling member 34 </ b> R provided between the left and right seat backs 7 in accordance with the length of the seat back 7 in the vertical direction. As shown in FIG. 18, a cup holder 35 is recessed on the surface of the base member 25 of the front gap filling member 34F. The seat 2 is attached to the left and right vehicle body side walls 3 facing each other in a pair of left and right, and the projection 33 of the gap filling member 34 in which the cup holder 35 is recessed is formed in the groove of the seat cushion 5 and the left and right ottomans 9. 32 is engaged. In the present embodiment, a cup holder 35 is provided at the center of a bench seat for two persons in which two single seats are arranged side by side to provide a comfortable itinerary. When the gap filling member 34 is not disposed between the two seats 2, it is necessary to store the gap filling member 34. However, the gap filling member 34 is separately stored in another place in a use state as a seating seat. There is no need to keep. Additional storage space is not required by using it as a tool for placing cups. The other gap filling member 34 is inserted between the seat backs 7 so as to fill the gap 31 between the seat backs 7, so that the necessary space for storing the gap filling member 34 is not necessary and the rear luggage space and the occupant Block the space and improve safety in the event of an accident.

  Although the description of the specific embodiment is finished as described above, the present invention is not limited to the above embodiment and can be widely modified. For example, the specific configuration, arrangement, quantity, and deformation procedure of each member or part can be changed as appropriate without departing from the spirit of the present invention. On the other hand, not all the constituent elements shown in the above embodiment are necessarily essential, and can be appropriately selected.

DESCRIPTION OF SYMBOLS 1 Vehicle seat structure 2 Seat 3 Car body side wall 4 Hinge 5 Seat cushion 5X 1st axis 6 Hinge 7 Seat back 7X 2nd axis 8 Hinge 9 Ottoman 9X 3rd axis 11 Seat back lower part 12 Hinge 13 Seat back upper part 13X 4th axis 14 Pole-shaped Leg 15 Cushion Support Leg 16 Storage Recess 17 Back Support Leg 18 Ottoman Support Leg 19 Vehicle Body Floor 21 Back Support Shelf 22 Ottoman Support Shelf 23 Recess 25 Base Member 26 Cushion Member 31 Gap 32 Groove 33 Projection 34 Gap Filling Member 34F Front gap filling member 34R Rear gap filling member 35 Cup holder

Claims (10)

A foldable vehicle seat structure,
A seat cushion that is pivotally mounted between an approximately horizontal seating position and an upright standing position about an axis that faces in the front-rear direction with respect to the vehicle body side wall;
A seat back attached so as to be rotatable between an upright position and a substantially horizontal rearward tilt position around an axis lined in a lateral direction with respect to a rear edge of the seat cushion;
Attached so as to be rotatable between an unfolded position extending substantially horizontally forward and a retracted position folded on the lower surface of the seat cushion, around an axis that is lateral to the front edge of the seat cushion. Ottoman and
Cushion support legs that are foldable at the end of the seat cushion inside the vehicle body,
A back support shelf provided on the side wall of the vehicle body to support the outside of the vehicle body of the seat back at a rearward tilt position of the seat back, and a back support leg provided to be foldable at an end of the seat back on the inside of the vehicle body When,
An ottoman support shelf provided on a side wall of the vehicle body for supporting the outer side of the vehicle body of the ottoman at an unfolded position of the ottoman, and an ottoman support leg provided foldable on an end portion of the ottoman inside the vehicle body. A vehicle seat structure characterized by including a seat.   A lower portion of the seat back attached to the seat cushion so that the seat back is further rotatable between the upright position and a folded position folded on the upper surface of the seat cushion; and the seat back Attached so as to be rotatable between a straight position extending straight and an folding position folded with respect to the rear surface of the lower portion of the seat back, around an axis line oriented in the lateral direction with respect to the upper edge of the lower portion. The vehicle seat structure according to claim 1, further comprising a seat back upper portion.   The vehicle seat structure according to claim 1, wherein the back support shelf is a wheel house.   The vehicle seat structure according to any one of claims 1 to 3, wherein the back support leg and the ottoman support leg have a plate shape extending in the front-rear direction during use.   The said cushion support leg has a pair of front and rear pole-shaped legs provided at the front end and the rear end of the lower surface of the seat cushion during use, according to any one of claims 1 to 4. The vehicle seat structure as described.   6. The concave portion is disposed at a position corresponding to a lower end of the cushion support leg, the back support leg, and the ottoman support leg on a vehicle body floor surface. The vehicle seat structure according to Item. The ottoman has a width substantially the same as the width of the seat cushion, and has a notch at a front end and a rear end on the inner side of the vehicle body corresponding to the front and rear pole-shaped legs in the use position in the storage position. ,
On the front edge and the rear edge of the lower surface of the seat cushion, a storage recess for storing the front and rear pole-shaped legs is formed,
The front and rear pole-shaped legs are rotatable between a folding position in the storage recess and a deployed position that is substantially parallel to the seat cushion on the inner side of the seat cushion. Item 6. The vehicle seat structure according to Item 5.   The said sheet | seat is attached to the left-right said vehicle body side wall which mutually opposes with the clearance gap through which a person can pass through in 1 pair of Claims 1-7 characterized by the above-mentioned. Vehicle seat structure. Grooves extending in the longitudinal direction are formed on the end surfaces of the seat cushion, the ottoman, and the seat back on the left and right seats,
A gap filling member having a width corresponding to the gap and having left and right protrusions on both sides engaging the grooves of the left and right sheets;
9. The vehicle seat structure according to claim 8, wherein the gap filling member includes a plate-like base member integrally including the left and right protrusions, and a cushion member forming a mat surface. The gap filling member includes a front gap filling member provided between the left and right seat cushions and the left and right ottomans, and a rear gap filling member provided between the left and right seat backs,
The vehicle seat structure according to claim 9, wherein a cup holder is recessed on a surface of the base member of the front gap filling member.

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