JP2022188672A - vehicle seat - Google Patents

Abstract

An object of the present invention is to provide a vehicle seat that allows for a variety of sitting styles.
A vehicle seat (1) includes a seat back (30) and a plurality of seat cushions provided independently of the seat back (30), the plurality of seat cushions extending along a floor (VF) of a vehicle (V). A seat cushion 10 movable in the left-right direction X and a seat cushion 20 movable in the front-rear direction Y, which is a direction along the floor VF and intersects the left-right direction X, are included.
[Selection drawing] Fig. 1

Description

The present invention relates to vehicle seats.

Patent Literature 1 describes a rear seat in which a seat back and a seat cushion can be separated, and the seat cushion is arranged to be slidable in the lateral direction of the vehicle compartment.

Patent Document 2 describes a vehicle seat device that includes a plurality of seats that are slidably arranged along the front-rear direction of the vehicle.

U.S. Pat. No. 6,331,000 discloses a first seating row having a passenger use arrangement that allows access to user input controls for a vehicle, and a second seating row comprising a passenger use arrangement and a second seating arrangement. A system is described that has In this system, a first seating row is configured to move over a second seating row.

Patent Document 4 discloses a folding door that is provided on the side of a vehicle body and that can be positioned in a closed position for closing an entrance/exit and a folding position for opening, and a seat that is provided adjacent to the front of the folding position. The structure of the car body is described. This seat includes a seat cushion having a seat back that can be reclined to the folded position by a reclining mechanism. A stopper means is provided for restricting the movement of the seat back when the reclining mechanism is reclining, and for preventing interference between the folding door located in the folded position and the seat back.

Japanese Utility Model Laid-Open No. 02-059028 JP 2015-221640 A JP 2020-128205 A Japanese Unexamined Patent Application Publication No. 2011-131781

A variety of sitting styles cannot be achieved simply by allowing a vehicle seat in which a seat back and a seat cushion are integrated as in the conventional technology to be movable.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle seat that allows for a variety of sitting styles.

A vehicle seat according to one aspect of the present invention is a vehicle seat on which a vehicle occupant sits, comprising a seat back and a plurality of seat cushions provided independently of the seat back, wherein the plurality of a first seat cushion movable in a first direction along the installation surface of the vehicle seat in the vehicle, and a second seat cushion in a direction along the installation surface and intersecting the first direction a second seat cushion that is movable in a direction.

ADVANTAGE OF THE INVENTION According to this invention, the vehicle seat which can sit in various ways can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic plan view showing a schematic configuration of an automobile seat that is an embodiment of a vehicle seat of the present invention; 2 is a schematic plan view showing a state in which the position of a seat cushion in the automobile seat shown in FIG. 1 is changed; FIG. 2 is a schematic plan view showing a state in which the position of a seat cushion in the automobile seat shown in FIG. 1 is changed; FIG. FIG. 2 is a schematic plan view showing a state in which positions of a seat cushion and a seat back in the automobile seat shown in FIG. 1 are changed; FIG. 2 is a schematic plan view for explaining a movable range of a seat cushion in the automobile seat shown in FIG. 1; FIG. 2 is a perspective view showing a detailed configuration example of the automobile seat in the state shown in FIG. 1; FIG. 7 is a perspective view showing a state in which two seat cushions have moved from the state shown in FIG. 6; Fig. 8 is an enlarged view of the vicinity of the cushion rail shown in Figs. 6 and 7; FIG. 2 is a perspective view showing a detailed configuration example of the automobile seat in the state shown in FIG. 1 from the rear side of the seat back; FIG. 10 is a perspective view showing the skeleton structure of the seatback portion shown in FIG. 9; FIG. 10 is an enlarged view of a main part of range AR1 in FIG. 9; FIG. 12 is an enlarged view of a range AR2 in FIG. 11; 2 is a schematic plan view showing a modification of the automobile seat shown in FIG. 1. FIG.

FIG. 1 is a schematic plan view showing a schematic configuration of an automobile seat 100 that is an embodiment of the vehicle seat of the present invention. The automobile seat 100 is mounted on an automobile V. As shown in FIG. Hereinafter, the forward direction of the vehicle V is referred to as the forward direction Fr, the opposite direction to the forward direction Fr is referred to as the rearward direction Rr, and these directions are collectively referred to as the longitudinal direction Y. As shown in FIG. A direction perpendicular to the front-rear direction Y and the vertical direction is referred to as a left-right direction X of the vehicle V. As shown in FIG. One of the left and right directions X is described as the right direction R, and the opposite direction of the right direction R is described as the left direction L. A direction perpendicular to the front-rear direction Y and the left-right direction X is referred to as a vertical direction Z of the vehicle V. As shown in FIG. Of the vertical direction Z, the direction toward the ground is described as the downward direction D, and the opposite direction to the downward direction D is described as the upward direction U.

The automobile V has a substantially rectangular vehicle body extending in the front-rear direction Y, and a boarding/alighting opening VE is provided on the front side of the left side surface of the vehicle body. In the example of FIG. 1, the automobile seat 100 is installed behind the entrance/exit VE on the floor VF forming the bottom surface of the vehicle body of the automobile V. As shown in FIG. A substantially L-shaped body frame 41 is erected on the floor VF from substantially the center of the left side to the rear.

The automobile seat 100 includes a seat back 30 for supporting the waist and back of the seated person, and a seat cushion 10 provided independently of the seat back 30 for supporting the buttocks and thighs of the seated person. and a seat cushion 20, a pair of cushion rails 10Fr and 10Rr fixed to the floor VF and extending in the left-right direction X, and a pair of cushion rails 20R and 20L fixed to the floor VF and extending in the front-rear direction Y, A substantially L-shaped back rail 30R that is fixed to the body frame 41 along the body frame 41 and extends curvedly in the left-right direction X and the front-rear direction Y, a position detection device D1, and a position detection device D2. .

The seat cushion 10, the seat cushion 20, and the seat back 30 are each composed of a seat frame made of metal or the like that forms the framework (base) of the seat, and a pad made of a foam material such as urethane foam that covers the seat frame. , and a trim cover covering the pad surface. The trim cover is a bag-like cover formed by stitching together a plurality of cover members. As the cover member, for example, leather (natural leather, synthetic leather) or fabric (woven fabric, knitted fabric, non-woven fabric) is used. The cover member may have a single-layer structure of leather or fabric, or a multi-layer structure in which a wadding (for example, a resin foam such as an elastically deformable flexible polyurethane foam) is laminated on the leather or fabric with the leather or fabric as the outer material. It may be a structure. The rectangles schematically showing the seat cushion 10 and the seat cushion 20 shown in FIG. 1 respectively show the planar shapes of the edges of the outer surfaces of these seat cushions (the edges of the trim cover covering the pad).

Leg portions of the seat cushion 10 are attached to the cushion rails 10Rr and 10Fr so as to be slidable in the left-right direction X. As shown in FIG. The cushion rail 10Rr is arranged on the front side of the body frame 41 adjacent to the portion of the body frame 41 at the rear portion of the floor VF. The cushion rail 10Fr is arranged on the front side of the cushion rail 10Rr. The cushion rail 10Rr and the cushion rail 10Fr have the same position in the left-right direction X and are arranged parallel to each other.

Leg portions of the seat cushion 20 are attached to the cushion rails 20R and 20L so as to be slidable in the front-rear direction Y. As shown in FIG. The cushion rail 20L is arranged on the right side of the body frame 41 adjacent to the portion of the body frame 41 on the left side of the floor VF. The cushion rail 20R is arranged on the right side of the cushion rail 20L. The cushion rail 20R and the cushion rail 20L have the same position in the front-rear direction Y and are arranged parallel to each other.

The vehicle body frame 41 is arranged on the rear side of the cushion rail 10Rr and on the left side of the cushion rail 20L, along the left rear corner of the vehicle body. The back rail 30R is fixed to the surface of the body frame 41 facing the cushion rail 10Rr and the cushion rail 20L. The seat back 30 is slidably attached to the back rail 30R, and is movable along the back rail 30R and deformable according to the shape of the back rail 30R.

The position detection device D1 is attached near the right end of the cushion rail 10Rr on the floor VF, and is composed of a mechanical switch, an optical sensor, and the like. When the seat cushion 10 has moved to the right end in the left-right direction X along the cushion rails 10Rr and 10Fr, the position detection device D1 detects a range in the left-right direction X within which the seat cushion 10 can move (see FIG. 5 to be described later). A detection signal indicating that it is positioned at the right end of the movable range 10AR) is sent to the processor of the vehicle V (not shown). The position detection device D1 may be attached near the right end of the cushion rail 10Fr.

The position detection device D2 is attached near the front end of the cushion rail 20L on the floor VF, and is composed of a mechanical switch, an optical sensor, and the like. When the seat cushion 20 has moved to the front end in the front-rear direction Y along the cushion rails 20R and 20L, the position detection device D2 determines the range in the front-rear direction Y in which the seat cushion 20 can move (see FIG. 5 to be described later). A detection signal indicating the position at the front end of the movable range 20AR) is sent to the processor. The position detection device D2 may be attached near the front end of the cushion rail 20R.

In the automobile seat 100 configured in this manner, the seat cushion 10 is moved in the right direction R from the state shown in FIG. 1, thereby separating the seat cushion 10 and the seat cushion 20 as shown in FIG. status can be obtained. Further, by moving the seat cushion 20 in the rearward direction Rr from the state shown in FIG. 2, a state in which the seat cushion 10 and the seat cushion 20 are adjacently arranged in the left-right direction X as shown in FIG. 3 can be obtained. can. For example, in the state shown in FIG. 3, it is possible to realize a form in which the occupant sits on the vehicle seat 100 while facing the direction in which the vehicle V travels. In addition, in the state shown in FIG. 1, it is possible to realize a form in which the occupant sits on the vehicle seat 100 while facing the direction perpendicular to the traveling direction of the vehicle V. FIG. Furthermore, in the state shown in FIG. 2, the vehicle seat 100 can be placed in the surplus space between the seat cushion 10 and the seat cushion 20 regardless of whether the vehicle seat 100 is facing in the direction of travel or in the direction perpendicular thereto. be able to sit on

Further, in the automobile seat 100, the state shown in FIG. 4 can be obtained by moving the seat back 30 in the rearward direction Rr and the right direction R along the back rail 30R from the state shown in FIG. In the state shown in FIG. 1, since the seat back 30 is arranged on the left side of the seat cushion 10 and the seat cushion 20 arranged in the front-rear direction Y, the waist and back of the occupant seated on the seat cushion 10 and the seat cushion 20 are protected. It can be supported by the seat back 30 . In addition, in the state shown in FIG. 4, the seat back 30 is arranged behind the seat cushions 10 and 20 aligned in the left-right direction X, so that the waist and back of the occupant seated on the seat cushions 10 and 20 are arranged. can be supported by the seat back 30. By changing the position of the seat back 30 in accordance with the positions of the seat cushions 10 and 20 in this way, it is possible to improve sitting comfort while realizing various ways of sitting.

Thus, the automobile seat 100 includes a seat cushion 10 that can move in the left-right direction X along the floor VF, and a seat cushion 20 that can move in the front-rear direction Y that intersects the left-right direction X (perpendicularly in the example shown). and a seat back 30 that is configured independently of these seat cushions and that is movable along the edges of the seat cushions 10 and 20 .

FIG. 5 is a schematic diagram for explaining the movable range of the seat cushion 10 and the seat cushion 20. As shown in FIG. FIG. 5 shows a movable range 10AR of the seat cushion 10 and a movable range 20AR of the seat cushion 20. As shown in FIG. The movable range 10AR is indicated by the trajectory of the seat cushion 10 when the seat cushion 10 moves left and right. The movable range 20AR is indicated by the trajectory of the seat cushion 20 when the seat cushion 20 moves back and forth.

As shown in FIG. 5, the movable range 10AR and the movable range 20AR partially overlap. Specifically, the left end (the left half in the example of the figure) of the movable range 10AR overlaps with the rear end (the rear half in the example of the figure) of the movable range 20AR. A movable range, which is a combination of the movable range 10AR and the movable range 20AR, is substantially L-shaped along the corners of the vehicle body of the automobile V. As shown in FIG. The seat back 30 is provided extending along a portion of this substantially L-shaped movable range, and the seat back 30 is movable along this movable range.

A region SP in which the cushion rails 10Rr, 10Fr, 20R, and 20L do not exist exists in the overlapping region between the movable range 10AR and the movable range 20AR. That is, the cushion rails 20R, 20L do not exist next to the cushion rails 10Rr, 10Fr in the direction in which they extend (to the left in the example of FIG. 5). In addition, the cushion rails 10Rr and 10Fr do not exist next to the cushion rails 20R and 20L in the direction in which they extend (in the example shown in FIG. 5, adjacent to the rear). In this way, the cushion rails 20R and 20L are not arranged next to the cushion rails 10Fr and 10Rr in the extending direction, and the cushion rails 10Fr and 10Rr are not arranged next to the cushion rails 20R and 20L in the extending direction. , cushion rails 10Fr, 10Rr, 20R, and 20L.

In FIG. 5, for example, the left ends of the cushion rails 10Rr and 10Fr are extended to the left end of the movable range 10AR, or the rear ends of the cushion rails 20R and 20L are extended to the rear end of the movable range 20AR. Even with such a configuration, it is possible to realize various ways of sitting by moving the seat cushion 10 left and right and moving the seat cushion 20 back and forth. However, in contrast to these modified configurations, according to the configuration of FIG. 5, since there is no rail in the region SP, it is possible to prevent interference between the legs of each seat cushion and other members. As a result, the structure of the automobile seat 100 can be simplified and the manufacturing cost can be reduced as compared with the above modified configuration in which rails are also present in this area SP. Also, in the state shown in FIG. 2, the area SP can be effectively used as a luggage space.

Up to this point, the configuration of the automobile seat 100 has been schematically shown. Hereinafter, more specific configuration examples of the automobile seat 100 will be described with reference to FIGS. 6 to 12 . 6 to 12, the same components as in FIGS. 1 to 5 are denoted by the same reference numerals.

FIG. 6 is a perspective view showing a detailed configuration example of the automobile seat 100 in the state shown in FIG. In FIG. 6, illustration of the seat back 30, the pads and trim covers of the seat cushions 10 and 20, and the position detection devices D1 and D2 is omitted. FIG. 7 is a perspective view showing a state in which the two seat frames 13, 23 have moved from the state shown in FIG. In FIG. 7, only some symbols are shown for simplification of the drawing. 8 is an enlarged view of the vicinity of the cushion rails 10Rr, 10Fr, 20R and 20L shown in FIGS. 6 and 7. FIG.

As shown in FIG. 6, a vehicle body frame 42 having a substantially L shape in plan view is fixed to the floor VF of the automobile V. As shown in FIG. The body frame 42 is formed along the left rear corner of the automobile V. As shown in FIG. The rear and left ends of the body frame 42 and the lower end of the body frame 41 are fixed. The cushion rails 10Rr, 10Fr, 20R, and 20L are fixed to the body frame 42, respectively. The back rail 30R is composed of an upper back rail 30Ru fixed to the vehicle body frame 41 and a lower back rail Rd fixed to the vehicle body frame 42 below the upper back rail 30Ru and above the seat cushions 10 and 20. It is configured.

The seat frame 13 forming the skeleton of the seat cushion 10 includes rear legs 11a and 11b that are slidably supported by the cushion rails 10Rr and extend vertically, and rear legs 11a and 11b that are slidably supported by the cushion rails 10Fr and extend vertically. It has legs composed of front legs 11c and 11d. The rear leg portion 11b is arranged on the left side of the rear leg portion 11a. The front leg portion 11d is arranged on the left side of the front leg portion 11c.

The seat frame 13 includes a seat frame 12a extending in the front-rear direction Y, a seat frame 12b arranged on the left side of the seat frame 12a and extending in the front-rear direction Y, and a seat frame 12b arranged on the left side of the seat frame 12b. a seat frame 12c extending in the front-rear direction Y; a seat frame 12f connecting the front ends of the seat frames 12a and 12c and extending in the left-right direction X; The seat portion is composed of a seat frame 12e arranged and extending in the left-right direction X, and a seat frame 12d arranged behind the seat frame 12e and extending in the left-right direction X.

The seat frame 12a is fixed to the upper ends of the front leg portion 11c and the rear leg portion 11a, and protrudes from the upper end of the front leg portion 11c to the front side of the cushion rail 10Fr. The right end of the seat frame 12f is fixed to the front end of the seat frame 12a. The right end of the seat frame 12e is fixed between the fixing portion of the seat frame 12a to the front leg portion 11c and the front end of the seat frame 12a. The right end of the seat frame 12d is fixed between the fixing points of the seat frame 12a with the front leg portion 11c and the rear leg portion 11a. The seat frame 12b is fixed to the upper ends of the front leg portion 11d and the rear leg portion 11b, and the front end thereof is fixed to the rear side surface of the seat frame 12e. The left ends of the seat frames 12d, 12e, and 12f are positioned from the left ends of the cushion rails 10Fr and 10Rr in the state shown in FIG. is configured to be located on the left side. That is, in the state shown in FIG. 6, the portion of the seat frame 13 on the left side of the positions of the front leg portion 11d and the rear leg portion 11b in the left-right direction X is the first protrusion portion that protrudes to the left side of the cushion rails 10Fr and 10Rr. becomes. With the presence of this first projecting portion, the seat cushion 10 can be arranged also in the region SP shown in FIG. 5 in the state shown in FIG. As a result, as shown in FIG. 1, a configuration in which the seat surface of the seat cushion 10 and the seat surface of the seat cushion 20 are adjacent to each other in the front-rear direction Y can be realized.

A seat frame 23 forming a skeleton of the seat cushion 20 includes vertically extending left leg portions 21a and 21b slidably supported by the cushion rail 20L and vertically slidably supported by the cushion rail 20R. It has legs composed of right legs 21c and 21d. The left leg portion 21b is arranged on the rear side of the left leg portion 21a. The right leg portion 21d is arranged on the rear side of the right leg portion 21c.

The seat frame 23 includes a seat frame 22a extending in the left-right direction X, a seat frame 22b arranged behind the seat frame 22a and extending in the left-right direction X, and a seat frame 22b extending in the left-right direction X and rearward of the seat frame 22b. A seat frame 22c arranged and extending in the left-right direction X, a seat frame 22f connecting the right end of the seat frame 22a and the right end of the seat frame 22c and extending in the front-rear direction Y, and the left side of the seat frame 22f. and a seat frame 22e extending in the longitudinal direction Y and a seat frame 22d disposed on the left side of the seat frame 22e and extending in the longitudinal direction Y.

The seat surface frame 22a is fixed to the upper ends of the right leg portion 21c and the left leg portion 21a, and protrudes from the upper end of the right leg portion 21c to the right side of the cushion rail 20R. The front end of the seat frame 22f is fixed to the right end of the seat frame 22a. The front end of the seat frame 22e is fixed between the fixing portion of the seat frame 22a to the right leg portion 21c and the right end of the seat frame 22a. A front end of the seat frame 22d is fixed between the fixed portions of the seat frame 22a to the right leg portion 21c and the left leg portion 21a. The seat frame 22b is fixed to the upper ends of the right leg portion 21d and the left leg portion 21b, and the right end thereof is fixed to the left side surface of the seat frame 22e. The rear ends of the seat frames 22d, 22e, and 22f are located at the rear ends of the cushion rails 20R and 20L in the state shown in FIG. It is configured to be located on the rear side of the rear end of the. That is, in the state shown in FIG. 7, the portion of the seat frame 23 on the rear side of the positions of the right leg portion 21d and the left leg portion 21b in the front-rear direction Y protrudes rearward from the cushion rails 20R and 20L. Two protruding parts. With this second protruding portion, the seat cushion 20 can be arranged in the region SP shown in FIG. 5 in the state shown in FIG. As a result, as shown in FIG. 3, a configuration in which the seat surface of the seat cushion 10 and the seat surface of the seat cushion 20 are adjacent to each other in the left-right direction X can be realized.

As shown in FIG. 8, a carriage 13c and a carriage 13d are slidably attached to the cushion rail 10Fr. 13 is fixed to the lower end of the front leg portion 11d. A carriage 13a and a carriage 13b are slidably attached to the cushion rail 10Rr. is fixed. A motor mount bracket 13BK is attached to the truck 13a and the truck 13b, and a motor 10M controlled by the processor of the automobile V is fixed to the motor mount bracket 13BK. A pinion gear is connected to the drive shaft of the motor 10M via a speed reducer. A rack 10RK, which is always meshed with the pinion gear, is arranged so as to extend in the left-right direction X adjacent to the cushion rail 10Rr. By operating the motor 10M, the pinion gear meshing with the rack 10RK moves along the rack 10RK. Thus, the rack and pinion mechanism allows the seat cushion 10 to move along the cushion rails 10Fr and 10Rr.

As shown in FIG. 8, a carriage 23c and a carriage 23d are slidably attached to the cushion rail 20R. and the lower end of the right leg portion 21d of the seat frame 23 are fixed. A truck 23a and a truck 23b are slidably attached to the cushion rail 20L. is fixed. A motor mount bracket 23BK is attached to the truck 23a and the truck 23b, and a motor 20M controlled by the processor of the automobile V is fixed to the motor mount bracket 23BK. A pinion gear is connected to the drive shaft of the motor 20M via a speed reducer. A rack 20RK that meshes with the pinion gear is arranged so as to extend in the front-rear direction Y adjacent to the cushion rail 20L. By operating the motor 20M, the pinion gear meshing with the rack 20RK moves along the rack 20RK. Thus, the rack and pinion mechanism allows the seat cushion 20 to move along the cushion rails 20R and 20L.

A rack and pinion mechanism including the motor 10M and the rack 10RK is provided with a lock mechanism (not shown) that disables movement of the seat cushion 10 (locks the seat cushion 10). A rack and pinion mechanism including the motor 20M and the rack 20RK is provided with a lock mechanism (not shown) that disables movement of the seat cushion 20 (locks the seat cushion 20). These locking mechanisms are controlled by the vehicle V's processor.

When the processor of the automobile V receives the detection signal from the position detection device D1, that is, when the seat cushion 10 has moved to the right end of the movable range 10AR, the processor of the automobile V activates the rack and pinion mechanism including the motor 20M and the rack 20RK. An included locking mechanism is controlled to unlock the seat cushion 20 and allow the seat cushion 20 to move. Further, when the processor of the automobile V receives the detection signal from the position detection device D2, that is, when the seat cushion 20 has moved to the front end of the movable range 20AR, the processor of the automobile V detects the rack and pinion including the motor 10M and the rack 10RK. A lock mechanism included in the mechanism is controlled to unlock the seat cushion 10, thereby making the seat cushion 10 movable. In the state shown in FIG. 2, detection signals are input to the processor from each of the position detection devices D1 and D2. In this case, the processor locks one of the seat cushion 10 and the seat cushion 20 that was moved most recently and unlocks the other.

Thus, in the automobile seat 100, the seat cushion 20 is unlocked and the seat cushion 20 can be moved only when the seat cushion 10 is at the right end of the movable range 10AR. Only when the seat cushion 10 is at the front end of the possible range 20AR, the seat cushion 10 is unlocked and can be moved.

That is, in the automobile seat 100, in the state shown in FIG. 1, the seat cushion 10 is unlocked and the seat cushion 20 is locked. After that, when the unlocked seat cushion 10 moves in the right direction R to reach the state shown in FIG. 2, the seat cushion 20 is unlocked and the seat cushion 10 is locked. After that, the unlocked seat cushion 20 moves in the rearward direction Rr into the state shown in FIG. Further, when the seat cushion 20 moves in the forward direction Fr from the state shown in FIG. 3 to reach the state shown in FIG. 2, the seat cushion 10 is unlocked and the seat cushion 20 is locked. After that, the unlocked seat cushion 10 moves in the left direction L to the state shown in FIG. Such a series of operations of the seat cushions 10 and 20 are triggered by the operation of an operation unit provided on the automobile V by the passenger.

Next, a detailed configuration example of the seat back 30 will be described. FIG. 9 is a perspective view showing a detailed configuration example of the automobile seat 100 in the state shown in FIG. 1 from the rear side of the seat back 30. As shown in FIG. As shown in FIG. 9, the seat back 30 is configured by connecting a plurality of elongated seat back portions 31 (14 pieces in the example of FIG. 9) extending in the vertical direction Z. As shown in FIG. Each seat back portion 31 includes a frame member 31F (see FIG. 10) made of metal or the like, a pad (not shown) partially covering the frame member 31F, and a trim cover 31t (see FIG. 9) covering the pad. Only part of the symbols are shown in the following). Each of the 14 frame members 31F has the same structure. The frame member 31</b>F included in each of the 14 seat back portions 31 constitutes a seat frame forming the skeleton of the seat back 30 . The trim cover 31t may be separated for each seat back portion 31, or may be configured to straddle the pads of each of the 14 seat back portions 31 and cover these pads.

10 is a perspective view of the internal structure of the seat back portion 31 shown in FIG. 9 as viewed from the front side of the seat back 30. FIG. In FIG. 10, of the 14 seat back portions 31 shown in FIG. 9, three seat back portions 31 located fifth, sixth, and seventh counted from the front side of the automobile V (left side in FIG. 9). The internal structure is shown representatively.

As shown in FIG. 10, the frame member 31F includes a pair of columnar side frames 31Fa and 31Fb extending in the vertical direction Z, and an upper frame 31Fc connecting upper ends of the side frames 31Fa and 31Fb. In addition, it has a substantially U-shaped structure.

In each frame member 31F, a hinge bracket 31B having a common structure is attached to each of the lower end of the side frame 31Fa and the lower end of the side frame 31Fb. The hinge bracket 31B has a substantially U-shaped structure in which both ends are fixed to the side frames of the frame member 31F. Specifically, the hinge bracket 31B includes a plate-like upper surface portion 31Ba having one end fixed to one side frame of the frame member 31F and a plate having one end fixed to the side frame below the upper surface portion 31Ba. and a plate-shaped side surface portion 31Bc substantially parallel to the vertical direction Z connecting the other ends of the upper surface portion 31Ba and the lower surface portion 31Bb.

The hinge bracket 31B attached to the side frame 31Fb of the frame member 31F and the hinge bracket 31B attached to the side frame 31Fa of another frame member 31F adjacent to this frame member 31F are arranged adjacent to each other. These two adjacently arranged hinge brackets 31B are rotatably connected by flat hinges 31J. Specifically, one blade portion of the flat hinge 31J is screwed to one side surface portion 31Bc of the two hinge brackets 31B, and the other blade portion of the flat hinge 31J is screwed to the two hinge brackets 31B. is screwed to the other side surface portion 31Bc. The flat hinge 31J rotatably connects the two hinge brackets 31B so that the surfaces of the two blades on the side opposite to the hinge bracket 31B side can rotate in a direction toward each other. In other words, the flat hinge 31J connects the two frame members 31F so that the distance between the two frame members 31F (the distance between the side frame 31Fa and the side frame 31Fb) can be changed. .

FIG. 11 is an enlarged view of a main portion of range AR1 in FIG. 12 is an enlarged view of the range AR2 in FIG. 11. FIG. 11 omits illustration of the pads and trim covers 31t for the fifth and sixth seat back portions 31 counted from the front side of the automobile V for the sake of explanation. As shown in FIGS. 10 and 11, a side frame 31Fa of a specific frame member 31F (the sixth frame member 31F of the seat back portion 31 counted from the front side of the vehicle V) among the 14 frame members 31F, On the rear side of 31Fb, an upper table bracket 31U fixed to an upper table 31Tu slidably supported on the upper back rail 30Ru and a lower table 31Td slidably supported on the lower back rail 30Rd are fixed. A lower table bracket 31D is attached.

11 and 12, a motor bracket 31BK is attached to the rear side of the side frames 31Fa and 31Fb of the specific frame member 31F, slightly below the lower table bracket 31D. A motor 31M controlled by the processor of the vehicle V is fixed to the motor bracket 31BK. As shown in FIG. 9, a rack 30RK extending in the front-rear direction Y is attached to the body frame 41 below the lower back rail 30Rd. As shown in FIG. 12, a pinion gear G is connected to the drive shaft of the motor 31M via a speed reducer, and the pinion gear G is always meshed with the rack 30RK.

Although illustration is omitted in FIGS. 9 to 11 for the sake of simplification, in practice, the upper back rail 30Ru is also provided on the rear surfaces of all the frame members 31F other than the specific frame member 31F. An upper table bracket 31U fixed to the upper table movably supported and a lower table bracket 31D fixed to the lower table slidably supported by the lower back rail 30Rd are attached. That is, each frame member 31F is slidably supported by the back rail 30R at two upper and lower positions. However, not all the frame members 31F forming the seat back 30 need to be slidably supported by the back rails 30R. For example, only the even-numbered frame members 31F counted from the front side of the vehicle V may be slidably supported by the back rail 30R.

Thus, the seat back 30 includes a frame member 31F, a hinge bracket 31B, a flat hinge 31J, an upper table bracket 31U, an upper table 31Tu, a lower table bracket 31D, a lower table 31Td, a motor bracket 31BK, a motor 31M, a back rail 30R, and a rack 30RK.

In the seat back 30 configured as described above, the motor 31M operates to move the pinion gear G meshing with the rack 30RK forward and backward along the rack 30RK. As the pinion gear G moves along the rack 30RK, the motor 31M coupled with the pinion gear G, the motor bracket 31BK fixed with the motor 31M, the specific frame member 31F fixed with the motor bracket 31BK, and the specific The frame member 31F and the fixed upper table 31Tu and lower table 31Td integrally move in the front-rear direction Y along the back rail 30R. As a specific frame member 31F moves in the front-rear direction Y, other frame members 31F connected to this specific frame member 31F also move along the back rail 30R. Thus, the rack and pinion mechanism allows the seat back 30 to move along the back rail 30R.

The present invention is not limited to the above-described embodiment and modifications thereof, and can be modified as appropriate without departing from the gist of the present invention. For example, in the above description, the seat cushion 10, the seat cushion 20, and the seat back 30 are moved by motors, but the seat cushion 10, the seat cushion 20, and the seat back 30 can be manually moved. It is good also as a structure.

In the above description, the direction in which the cushion rails 10Fr and 10Rr extend is orthogonal to the direction in which the cushion rails 20R and 20L extend. .

Further, in the above description, the seat back 30 extends along a part of the movable range including the movable range 10AR and the movable range 20AR. may be provided along the entire movable range and fixed in position.

Further, in the automobile seat 100 shown in FIG. 1, the seat back 30 may be configured to be movable in the forward direction Fr from the state shown in FIG.

Further, in the above description, the seat cushions 10 and 20 are configured to be movable. seat cushions may be arranged. Even with this configuration, the seat back 30 can move along this movable range, so that various ways of sitting can be realized.

In the description so far, the automobile seat 100 mounted on the automobile V has been taken as an example of one embodiment of the vehicle seat. However, the present invention is applicable not only to seats mounted in automobiles, but also to seats mounted in vehicles such as trains, aircraft, and ships.

As described above, this specification discloses the following matters. In addition, although the parenthesis shows the components corresponding to the above-described embodiment, the present invention is not limited to this.

(1) A vehicle seat (automobile seat 100) on which an occupant of a vehicle (automobile V) sits,
a seat back (seat back 30);
A plurality of seat cushions (seat cushions 10, 20) provided independently of the seat back,
The plurality of seat cushions include a first seat cushion (seat cushion 10) movable in a first direction (horizontal direction X) along an installation surface (floor VF) of the vehicle seat in the vehicle, and the installation surface. a second seat cushion (seat cushion 20) movable in a second direction (front-rear direction Y) that intersects the first direction along the
vehicle seat.

According to (1), for example, a state in which the first seat cushion and the second seat cushion are adjacent to each other and arranged in the first direction, and a state in which the first and second seat cushions are adjacent to each other and arranged in the second direction. , and a state in which the first seat cushion and the second seat cushion are spaced apart from each other. For example, if the first direction is the left-right direction of the vehicle and the second direction is the traveling direction of the vehicle, there is a sitting method in which the line of sight is directed in the horizontal direction and a seating method in which the line of sight is directed in the direction of travel. How to sit is possible. In addition, it is possible to place luggage between the first seat cushion and the second seat cushion, or secure a distance between the persons sitting on the first seat cushion and the second seat cushion. In this way, it is possible to realize various ways of sitting and effectively utilize the interior space of the vehicle. In addition, since the plurality of seat cushions and seat backs are independent, the structure can be simplified and the weight of the vehicle seat can be reduced.

(2) The vehicle seat according to (1),
One end of the first movable range (movable range 10AR) of the first seat cushion and one end of the second movable range (movable range 20AR) of the second seat cushion overlap,
vehicle seat.

According to (2), a state in which the first seat cushion and the second seat cushion are adjacent and arranged in the first direction, and a state in which the first seat cushion and the second seat cushion are adjacent and arranged in the second direction. , can be realized. As a result, it is possible to realize various ways of sitting and effectively utilize the interior space of the vehicle.

(3) The vehicle seat according to (2),
The legs of the first cushion frame (seat frame 13) forming the skeleton of the first seat cushion are slidably attached, and the first rail (cushion rail) extending in the first direction fixed to the installation surface (cushion rail 10Fr, 10Rr) and
The legs of the second cushion frame (seat frame 23) forming the skeleton of the second seat cushion are slidably attached, and the second rail (cushion rail) extending in the second direction fixed to the installation surface (cushion rail 20R, 20L) and
In a state where the second rail is not arranged next to the first rail in the first direction and the first rail is not arranged next to the second rail in the second direction, the first rail and wherein the second rail is arranged
vehicle seat.

According to (3), even though there is an overlapping range between the first movable range and the second movable range, the second rail does not exist next to the first rail, so the end of the first movable range Interference between the legs of each seat cushion and other members in the region between the ends of the first rail can be prevented. As a result, the structure of the vehicle seat can be simplified and the manufacturing cost can be reduced compared to a configuration in which rails are also present in this region.

(4) The vehicle seat according to (3),
In a state where the leg portion of the first cushion frame is located at the end of the first movable range on the one end side of the first movable range, the seat surface portion of the first cushion frame is positioned more than the first rail. Having a first projecting portion projecting in the direction side,
In a state where the leg portion of the second cushion frame is located at the end of the second movable range on the one end side of the second movable range, the seat surface portion of the second cushion frame is positioned closer to the second cushion frame than the second rail. Having a second projecting portion projecting in the direction side,
vehicle seat.

According to (4), even if the second rail does not exist next to the first rail, the first projecting portion of the seat surface portion of the first cushion frame can be positioned next to the first rail, so that the first seat cushion can be positioned next to the first rail. and the second seat cushion are arranged adjacent to each other in the second direction. In addition, since the second projecting portion of the seat surface portion of the second cushion frame can be positioned next to the second rail, it is possible to arrange the first seat cushion and the second seat cushion adjacent to each other in the first direction.

(5) The vehicle seat according to any one of (2) to (4),
A locking mechanism for locking movement of each of the first seat cushion and the second seat cushion,
The locking mechanism is capable of unlocking the first seat cushion when the second seat cushion is in a default position (front end), and the first seat cushion is in a default position (right end). The lock of the second seat cushion can be released in a certain state,
vehicle seat.

According to (5), it is possible to prevent the first seat cushion and the second seat cushion from moving toward each other when they are adjacent to each other, thereby enhancing the safety and durability of the vehicle seat. be able to.

(6) The vehicle seat according to any one of (1) to (5),
A movable range including a movable range of each of the plurality of seat cushions is provided along a corner of the vehicle,
vehicle seat.

According to (6), various ways of sitting can be realized.

(7) The vehicle seat according to (6),
The seat back is provided along part of the movable range and configured to be movable along the movable range,
vehicle seat.

According to (7), by moving the seat back along the movable range, the seat back can be positioned on the back surface of the seat cushion regardless of the positions of the seat cushions. Moreover, since the seat back is not provided over the entire movable range, the manufacturing cost of the vehicle seat can be reduced.

(8) The vehicle seat according to any one of (1) to (6),
The seat back is provided over the entire movable range including the movable ranges of the plurality of seat cushions.
vehicle seat.

According to (8), regardless of the position of the seat cushion, the seat back can support the waist and back of the person sitting on the seat cushion. Therefore, it is possible to improve sitting comfort while realizing various ways of sitting.

100 Automotive seats 10, 20 Seat cushions 13, 23 Seat frame 30 Seat backs 10AR, 20AR Movable range 10Rr, 10Fr Cushion rails 20R, 20L Cushion rail V Automobile VF Floor X Horizontal direction Y Front-back direction Z Vertical direction

Claims (8)

A vehicle seat on which a vehicle occupant sits,
seat back and
a plurality of seat cushions provided independently of the seat back,
The plurality of seat cushions include a first seat cushion movable in a first direction along an installation surface of the vehicle seat in the vehicle, and a direction along the installation surface that intersects the first direction. a second seat cushion movable in a second direction;
vehicle seat. A vehicle seat according to claim 1, comprising:
One end of the first movable range of the first seat cushion and one end of the second movable range of the second seat cushion overlap,
vehicle seat. A vehicle seat according to claim 2,
a first rail extending in the first direction fixed to the installation surface and to which legs of a first cushion frame forming a skeleton of the first seat cushion are slidably attached;
a second rail extending in the second direction fixed to the installation surface and to which legs of a second cushion frame forming a skeleton of the second seat cushion are slidably attached;
In a state where the second rail is not arranged next to the first rail in the first direction and the first rail is not arranged next to the second rail in the second direction, the first rail and wherein the second rail is arranged
vehicle seat. A vehicle seat according to claim 3,
In a state where the leg portion of the first cushion frame is located at the end of the first movable range on the one end side of the first movable range, the seat surface portion of the first cushion frame is positioned more than the first rail. Having a first projecting portion projecting in the direction side,
In a state where the leg portion of the second cushion frame is located at the end of the second movable range on the one end side of the second movable range, the seat surface portion of the second cushion frame is positioned closer to the second cushion frame than the second rail. Having a second projecting portion projecting in the direction side,
vehicle seat. A vehicle seat according to any one of claims 2 to 4,
A locking mechanism for locking movement of each of the first seat cushion and the second seat cushion,
The lock mechanism is capable of unlocking the first seat cushion when the second seat cushion is at the default position, and locks the second seat cushion when the first seat cushion is at the default position. can be unlocked,
vehicle seat. A vehicle seat according to any one of claims 1 to 5,
A movable range including a movable range of each of the plurality of seat cushions is provided along a corner of the vehicle,
vehicle seat. A vehicle seat according to claim 6,
The seat back is provided along part of the movable range and configured to be movable along the movable range,
vehicle seat. A vehicle seat according to any one of claims 1 to 6,
The seat back is provided over the entire movable range including the movable ranges of the plurality of seat cushions.
vehicle seat.

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