JP7319509B2 - vehicle seat - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat, and more particularly to a vehicle seat capable of switching a seat body having a seat back and a seat cushion from a sitting-ready state.

Conventionally, there is already known a vehicle seat in which a seat back and a seat cushion, which constitute a seat body, can be stored at a position lower than the floor of the vehicle body. There are vehicle seats that can be stored on a storage floor (for example, see Patent Documents 1 and 2).

The vehicle seat described in Patent Document 1 includes a seat rotation shaft (floor-side support shaft) that is attached to the floor of the vehicle body and rotatably supports the seat back, and a seat cushion that is rotatable with respect to the seat back. and a cushion lock device (latch device) that connects and locks the rotational movement of the seat cushion when the seat body is in a seatable state in which a seated person can be seated.
When the seat body is stored, the seat back rotates with respect to the vehicle body floor so as to move the seat cushion to the storage floor, and the seat body can be stored on the storage floor.
In addition, the vehicle seat is configured to be switchable from a seatable state in which a passenger can sit on the seat to a tip-up state in which the seat cushion is flipped upward.

In the automobile seat described in Patent Document 2, in addition to a seat rotation shaft that rotatably supports the seat back with respect to the vehicle body floor and a cushion lock device that rotatably connects the seat cushion with the seat back, a leg member whose upper end supports the front portion of the seat cushion and whose lower end is rotatably held by a leg holding member fixed to the storage floor.
When the seat body is stored, the seat back rotates with respect to the vehicle body floor so as to move the seat cushion to the storage floor, and the leg member rotates around the leg holding member in conjunction with the seat back to move the seat body. can be stored on the storage floor.

JP 2018-52435 A JP 2007-176404 A

By the way, the vehicle seat capable of storing the seat body as disclosed in Patent Document 1 does not have a leg member that supports the seat cushion from below. I needed to raise it. Therefore, there was a possibility that the structure of the cushion lock device would be enlarged.
Further, in the vehicle seat disclosed in Patent Document 2, since the seat cushion is fixedly supported by the leg members, the seating load can be sufficiently received. On the other hand, in the cushion lock device, it is desirable that the seat cushion has some play, rather than being rigidly fixed to the seat back, in order to facilitate meshing of the components of the device. I was
Therefore, there is a demand for a vehicle seat that can receive a seating load while avoiding an increase in the size of the cushion lock device, and that allows the seat cushion to have some play to allow the cushion lock device to function smoothly. rice field.

In addition, the vehicle seat disclosed in Patent Document 1 does not have a leg member that supports the seat cushion from below. There is a risk that noise may occur due to
Therefore, there has been a demand for a vehicle seat capable of suppressing the generation of noise due to contact between seat components while the vehicle is running.

The present invention has been made in view of the above problems, and an object of the present invention is to satisfactorily receive the seating load of a seated person and to smoothly switch the seat body from a seatable state. To provide a sheet for
Another object of the present invention is to provide a vehicle seat capable of suppressing noise caused by contact between seat components while the vehicle is running.

According to the vehicle seat of the present invention, the seat main body having a seat back and a seat cushion, the seat cushion being rotatably connected to the seat back, and the seat main body supporting the seated person. a cushion lock device that locks the pivotal movement of the seat cushion in a seatable state in which the seat can be seated, and the seatable state and a moving state in which the seat body is moved from the seatable state. and a support member provided on a vehicle body floor for supporting the seat body , and attached to one of the seat cushion and the support member, and in the seatable state. a gap-filling member extending from the one to contact the other of the seat cushion and the support member in order to fill a gap formed between the seat cushion and the support member in the vertical direction. The gap filling member has an elastic portion provided on the one side and having elasticity in the vertical direction, and a cover portion provided on the elastic portion and having slidability in the horizontal direction, the cover The part is attached so as to sandwich the elastic part in the seat front-rear direction .
As described above, the support member is provided on the floor of the vehicle body to support the seat body, and is attached to one of the seat cushion and the support member, and fills the vertical gap between the seat cushion and the support member when the seat is ready for seating. For this reason, the gap filling member extending from one side so as to contact the other of the seat cushion and the support member is provided, so that the seating load can be well received, and the seat body can be smoothly moved from the seating ready state. A switchable vehicle seat can be realized.
More specifically, the gap-filling member attached to one side is not fixed to the other side, but is provided so as to abut on the other side, so that the seating load can be received relatively well, while the seat cushion has an appropriate amount of play. It is possible to allow the cushion lock device to function smoothly.
In addition, by utilizing the elasticity of the gap-filling member, it is possible to suppress the generation of noise due to contact between seat components even when the vehicle is running.

Further, according to the vehicle seat of the present invention, the seat main body having a seat back and a seat cushion, the seat cushion being rotatably connected to the seat back, and the seat main body being a seat for the seated person. a cushion lock device that locks the rotational movement of the seat cushion in a seatable state in which the seat can be seated, and the seat body is moved from the seatable state and the seat body is moved from the seatable state. A vehicle seat that can be switched between a state of being able to sit, and a support member that is provided on a vehicle body floor and supports the seat body; a gap-filling member extending from the one so as to contact the other of the seat cushion and the support member in order to fill a gap sometimes formed between the seat cushion and the support member in the vertical direction; The gap-filling member is an elastic plate-shaped spring, and is provided at a spring attachment portion attached to the support member and at an end portion opposite to the spring attachment portion to abut against the seat cushion. The spring contact portion includes a contact surface that contacts the seat cushion and a surface that is opposite to the contact surface in the vertical direction and that is attached to the support member. The problem is solved by providing a cover portion for protecting each contactable surface.
With the above configuration, it is possible to realize an elastic gap filling member with a simple configuration using a leaf spring.
In addition, the above configuration improves the durability of the gap filling member against the seating load, and makes it easier to suppress the generation of noise due to contact.

Further, according to the vehicle seat of the present invention, the seat main body having a seat back and a seat cushion, the seat cushion being rotatably connected to the seat back, and the seat main body being a seat for the seated person. a cushion lock device that locks the rotational movement of the seat cushion in a seatable state in which the seat can be seated, and the seat body is moved from the seatable state and the seat body is moved from the seatable state. A vehicle seat that can be switched between a state of being able to sit, and a support member that is provided on a vehicle body floor and supports the seat body; a gap-filling member extending from the one so as to contact the other of the seat cushion and the support member in order to fill a gap sometimes formed between the seat cushion and the support member in the vertical direction; The gap-filling member has a protrusion attached to the seat cushion in such a manner that the length of protrusion that protrudes from the seat cushion toward the support member can be changed, and the seat cushion includes a frame and a skeleton. wherein the gap filling member is attached to the protruding shaft as the protruding portion and the outer peripheral surface of the protruding shaft, and the protruding length of the protruding shaft can be changed with respect to the cushion frame and a cover portion that protects the projecting tip portion of the projecting shaft.
With the above configuration, it is possible to realize a gap-filling member capable of favorably supporting the seat cushion with a simple configuration using the projecting portion (projecting shaft).
In addition, since the cover portion is provided, the durability of the gap filling member against the seating load is improved, and it becomes easy to suppress the generation of noise due to contact.

Further, according to the vehicle seat of the present invention, the seat main body having a seat back and a seat cushion, the seat cushion being rotatably connected to the seat back, and the seat main body being a seat for the seated person. a cushion lock device that locks the rotational movement of the seat cushion in a seatable state in which the seat can be seated, and the seat body is moved from the seatable state and the seat body is moved from the seatable state. A vehicle seat that can be switched between a state of being able to sit, and a support member that is provided on a vehicle body floor and supports the seat body; a gap-filling member extending from the one so as to contact the other of the seat cushion and the support member in order to fill a gap sometimes formed between the seat cushion and the support member in the vertical direction; The moving state is a stowed state in which the seat back is reclined toward the front of the seat with respect to the vehicle body floor and the seat cushion is disposed between the seat back and the vehicle body floor. The back is configured by placing a cushion pad on a back frame serving as a skeleton and covering it with a skin, and the skin covers the gap-filling member from above when in the stowed state. It is solved by having a skin overhang part extending so as to partially overhang from the part.
With the above configuration, foreign matter can be prevented from adhering to the gap-filling member in the stored state, and the appearance of the seat is improved.

At this time, the moving state is a storage state in which the seat back is laid down on the vehicle body floor and the seat cushion is arranged between the seat back and the vehicle body floor, and the gap filling member It is preferable that a slidable cover portion is provided on a portion of the contact portion that contacts the seat cushion .
With the above configuration, the seat cushion can be smoothly slid when switching the seat body from the seatable state to the stowed state, which facilitates the seat switching operation.

At this time, the support member is a support base having a shape corresponding to the seat cushion, and includes a base cover that covers the support base from above. Left and right cover protrusions provided on the seat cushion and formed to protrude upward toward the seat cushion, and left and right cover protrusions provided between the left and right cover protrusions and recessed below the left and right cover protrusions A cover accommodating recess for accommodating a contained object is formed, and the gap filling member is attached to the upper end portion of the cover protrusion or the lower end portion of the seat cushion facing the cover protrusion. It is good to be
With the above configuration, in the vehicle seat having the accommodation area below the seat cushion, the gap-filling member does not obstruct the accommodation area (cover accommodation recess).

ADVANTAGE OF THE INVENTION According to this invention, the vehicle seat which can receive a seating load favorably and can switch a seat body smoothly from a seating possible state is realizable. More specifically, it is possible to allow the cushion lock device to function smoothly by giving the seat cushion an appropriate amount of play while receiving the seating load relatively well.
Further, according to the present invention, the elasticity of the gap-filling member can be used to suppress the generation of noise due to contact between seat components even when the vehicle is running.
Further, according to the present invention, the seat cushion can be smoothly slid when switching the seat body from the seatable state to the stowed state, which facilitates the seat switching operation.
Further, according to the present invention, it is possible to realize an elastic gap filling member with a simple structure.
Further, according to the present invention, the durability of the gap-filling member against seating load is improved, and it becomes easy to suppress the generation of noise due to contact.
Further, according to the present invention, in the vehicle seat having the accommodation area below the seat cushion, the gap-filling member does not obstruct the accommodation area.
Moreover, according to the present invention, it is possible to prevent foreign matter from adhering to the gap-filling member in the stored state, and the appearance of the seat is improved.

1 is a perspective view of a vehicle seat according to the present invention; FIG. 1 is a perspective view of a vehicle seat when a seat body is in a stowed state; FIG. 1 is a perspective view of a vehicle seat when the seat body is in a tip-up state; FIG. 1 is a perspective view of a seat frame that serves as a skeleton of a vehicle seat; FIG. FIG. 4 is a side view of the seat frame showing a cushion lock device; FIG. 2 is a cross-sectional view taken along line VI-VI of FIG. 1 showing a gap filling member; FIG. 2 is a side view of the vehicle seat, showing a seatable state; It is a figure explaining the operation|movement which moves from a seatable state to a storage state. It is a figure which shows an accommodation state. It is a figure which shows a tip-up state. FIG. 2 is a cross-sectional view taken along line XI-XI of FIG. 1, showing a gap-filling member of a second embodiment; FIG. 2 is a cross-sectional view taken along line XII-XII in FIG. 1, showing a gap-filling member of a third embodiment;

A vehicle seat according to an embodiment of the present invention will be described below with reference to FIGS. 1 to 12. FIG.
In this embodiment, a seat body having a seat back and a seat cushion is rotatably connected to the seat back, and the seat cushion is locked from rotating when the seat body is in a seatable state. A vehicle seat that is switchable between a seatable state and a stowed state, comprising: a support base (support member) provided on a vehicle body floor for supporting a seat body; and a support base. a gap-filling member attached to the upper end and extending from the support base to contact the lower end of the seat cushion in order to fill the vertical gap between the seat cushion and the support base when the seat is in a seatable state. The invention relates to a vehicle seat characterized by:
Note that the side of the seat back of the vehicle seat on which the passenger sits is the front side of the seat.

The vehicle seat S of this embodiment is a rear seat corresponding to, for example, a rear seat of a vehicle. It can also be used as a second row middle seat in a vehicle having three rows of seats in the longitudinal direction of the vehicle.
The vehicle seat S has a seatable state in which a seated person can sit as shown in FIG. 1, a stored state in which the seat body is stored in a storage floor as shown in FIG. It is a seat that can be arranged in three different forms, including a tip-up state in which the seat body is flipped upward.
Specifically, when the occupant pulls the operating lever 5 at the upper end of the seat body from the seatable state shown in FIG. 7, the vehicle seat S tilts forward and folds the seat body (see FIG. 8). ), it switches to the stored state shown in FIG. Then, the stored state is switched to the tip-up state shown in FIG. 10 by the seated person manually raising the seat body upward. Further, when the seat occupant pulls the operation damper 6 at the lower end of the seat body from the tip-up state, a part of the seat body (seat cushion) rotates downward and returns to the seatable state shown in FIG. Details will be described later.

As shown in FIGS. 1 and 4, the vehicle seat S is mounted on a seat body including a seat back 1, a seat cushion 2, and a headrest 3, and on a floor of a vehicle body, so that the seat body can move in the longitudinal direction. and a support base 40 mounted on the rail device 4 and supporting the seat body.
1, the vehicle seat S includes a base cover 60 that covers the support base 40 from above, a cushion cover 70 that covers a portion of the seat cushion 2 from the outside in the seat width direction, and the base cover 60. a gap filling member 80 attached to the upper end portion and extending from the base cover 60 so as to contact the cushion cover 70 in order to fill the gap in the vertical direction between the seat cushion 2 and the base cover 60 in the seatable state; is mainly composed of
Further, as shown in FIGS. 4 and 5, the vehicle seat S rotatably connects the seat back 1 to the support base 40, and the seat back 1 is in the seatable state and the tip-up state. A reclining device 12 that locks the rotational movement, and a seat cushion 2 that is rotatably connected to the seat back 1, and that rotates the seat cushion 2 in the seating ready state, the retracted state, and the tip-up state. and a cushion lock device 25 for locking.

As shown in FIG. 1, the seat back 1 is a backrest portion that supports the back of the occupant from behind. It is covered and constructed.
As shown in FIG. 2, the portion of the skin 1b provided on the back surface of the seatback 1 is partially stretched from the body portion of the seatback 1 so as to cover the gap filling member 80 from above in the stored state. Left and right skin projecting portions 1c are formed so as to protrude. Between the right and left upholstery overhanging portions 1c in the seat width direction, a cover accommodating recess 62 provided in the base cover 60 is arranged such that at least a portion thereof is exposed.

The seat cushion 2 is a seating portion that supports an occupant from below. A cushion pad 2a is placed on a cushion frame 20 shown in FIG. It is configured.
The headrest 3 is a head portion that supports the occupant's head from behind, and is configured by placing a cushion pad on a pillar (not shown) serving as a core material and covering it with an outer skin.

The rail device 4 is arranged between the seat body and the vehicle body floor in the vertical direction. and left and right upper rails 4b slidably supported along.
A support base 40 is provided on the upper surfaces of the left and right upper rails 4b.

The back frame 10 is composed of a substantially rectangular frame-like body that serves as the skeleton of the seat back 1, and as shown in FIG. Left and right connection brackets 11 are attached for the purpose.
The connection bracket 11 is made of a bow-shaped sheet metal member extending in the vertical direction, and has an upper end attached to the back frame 10 and a lower end attached to the support base 40 .
A reclining device 12 that rotatably connects the back frame 10 to the support base 40 is attached to the lower end of the right connecting bracket 11, and a seat width direction reclining device 12 is attached to the lower end of the left connecting bracket 11. , a seat rotation shaft 13 pivotally supported by the support base 40 is provided.

As shown in FIG. 4, the reclining device 12 is arranged on the inner surface of the connecting bracket 11 in the seat width direction, and suppresses interference with the cushion frame 20 in the seat width direction.
The reclining device 12 mainly includes a seat rotation shaft 13 and a spiral spring 14 that rotates the back frame 10 forward about the seat rotation shaft 13 and biases the back frame 10 toward the retracted state.
The seat rotating shaft 13 is pivotally supported on the side of the back frame 10 and the side of the support base 40 in the seat width direction, and the spiral spring 14 has one end locked on the side of the back frame 10 and the other end on the side of the support base 40 locked to.
The reclining device 12 can be switched to a locked state that locks the rotating motion of the back frame 10, locks the back frame 10 in the standing posture shown in FIG. 1, and releases the locked state by operating the operation lever 5. Then, the back frame 10 can be rotated forward by the biasing force of the spiral spring 14 and folded toward the vehicle body floor (see FIG. 2).

The cushion frame 20 is composed of a substantially rectangular frame-like body that serves as the skeleton of the seat cushion 2. As shown in FIG. A U-shaped front connecting pipe 22 that connects the front portions of the side frames, a central connecting pipe 23 that connects approximately central portions of the side frames in the front-rear direction, and a plate-like frame that connects the front connecting pipe 22 and the central connecting pipe 23. and a pan frame 24 as a main component.
The side frame 21 is made of a sheet metal member extending in the seat front-rear direction. A cushion lock device 25 is attached.

As shown in FIGS. 4 and 5, the cushion locking device 25 includes a cushion rotating shaft 26 and a spiral spring 27 that biases the cushion frame 20 downward about the cushion rotating shaft 26. As shown in FIGS. and have.
The cushion rotation shaft 26 is pivotally supported on the back frame 10 side and the cushion frame 20 side in the seat width direction, and the spiral spring 27 has one end locked on the back frame 10 side and the other end on the cushion frame 20 side. locked to.
The cushion lock device 25 can be switched to a locked state for locking the rotational movement of the cushion frame 20 .
The cushion lock device 25 locks the cushion frame 20 in the horizontal posture shown in FIG. It can be folded to the vehicle body floor side while doing so (see Fig. 2). When the seat body is stored on the storage floor, an operation damper 6 provided at the lower end of the seat cushion 2 is brought into contact with the storage floor and automatically operated to lock the rotational movement of the cushion frame 20.例文帳に追加. Further, when the seat body is manually raised upward (see FIG. 3), the operation damper 6 is pulled to release the locked state, and the cushion frame 20 is pushed downward with respect to the back frame 10 by the biasing force of the spiral spring 27. can be rotated to

The support base 40 is a member that supports the seat body, and as shown in FIG. A first base connecting portion 42 connecting the front portion of the base portion 41 , a second base connecting portion 43 connecting substantially central portions of the side base portions 41 , and left and right reinforcements attached to the upper surface of each side base portion 41 . a base portion 44;
Left and right ends of each of the first base connecting portion 42 and the second base connecting portion 43 are sandwiched between the side base portion 41 and the reinforcing base portion 44 and connected.
The reinforcing base portion 44 overlaps with the side base portion 41 vertically to form a closed cross-sectional structure, and the support base 40 has a central shape.

The base cover 60 is a resin molded product that covers the entire support base 40 and the rail device 4 from above, as shown in FIG.
The base cover 60 has the function of protecting the support base 40 and the rail device 4 from the outside, and also has the function of guiding the movement of the seat body (seat cushion 2) when the seat body is switched from the seatable state to the retracted state. there is
The base cover 60 is provided on the side portion in the seat width direction, and is provided between the left and right cover protrusions 61 formed to protrude upward toward the seat cushion 2 and the left and right cover protrusions 61 . , and a cover housing recess 62 formed so as to be recessed below the cover protrusion 61 and for housing an object.

The cover projecting portion 61 has a substantially convex curved surface when viewed in the seat width direction, is an elongate body extending in the seat front-rear direction, and has a slight width in the seat width direction.
The cover projecting portion 61 has the highest upper surface at the central portion in the front-rear direction of the seat, and has an inclined surface that slopes downward toward the front of the seat from the upper surface of the central portion. A storage floor is arranged on the extension of the sloped surface in front of the seat.
As shown in FIG. 8, the cover projecting portion 61 comes into contact with a later-described cushion contacting portion 71 provided on the seat cushion 2 (cushion cover 70) when the seat body moves from the seatable state to the retracted state. , has a function of sliding (sliding) the cushion contact portion 71 toward the storage floor. In other words, the seat cushion 2 is guided by the base cover 60 so as to move smoothly toward the storage floor.
A gap filling member 80 is attached to a center portion of the cover protrusion 61 in the seat front-rear direction so as to partially protrude upward from the cover protrusion 61 .

As shown in FIG. 1, the cover accommodation recess 62 is formed below the seat cushion 2 and is a substantially rectangular parallelepiped accommodation space (accommodation area) for placing luggage and the like of the seated person.
The cover housing recesses 62 are recessed below the left and right cover projections 61, and are in contact with other seat components including the seatback 1 in any of the seatable state, the retracted state, and the tip-up state. It can be used as a storage space without interference.

As shown in FIG. 1, the cushion cover 70 is made of a substantially U-shaped resin molding that covers the left and right side frames 21 shown in FIG. 4 of the seat cushion 2 from the left and right outer sides.
The cushion cover 70 has the function of protecting the cushion frame 20 (side frame 21) from the outside, and also slides on the upper surface of the base cover 60 (cover protrusion 61) when the seat body is switched from the seatable state to the retracted state. Thus, it has a function of smoothing the sheet storage operation. In addition, it has a function of favorably receiving the seating load by abutting against the gap filling member 80 when the seat is in a seatable state.
The bottom surface of the cushion cover 70 has a substantially convex curved surface projecting toward the base cover 60, and is arranged at a position overlapping the cover projecting portion 61 in the seat width direction and the seat front-rear direction.
The cushion cover 70 is arranged in the front and rear of the seat at a position corresponding to the portion of the side frame 21 shown in FIG. 4 to which the central connection pipe 23 is connected. Therefore, it is a portion of the cushion cover 70 with relatively high rigidity.

As shown in FIGS. 1 and 6, the gap filling member 80 is an elastic body arranged between the seat cushion 2 (cushion cover 70) and the support base 40 (base cover 60) in the vertical direction. It is attached to the 40 side and extends from the support base 40 toward the seat cushion 2. - 特許庁
The gap filling member 80 includes a substantially cylindrical elastic portion 81 having elasticity in the vertical direction, and a substantially disk-shaped connecting portion attached to the lower end portion of the elastic portion 81 for connecting the gap filling member 80 and the support base 40 . 82 and a substantially circular cover portion 83 that is attached to the upper end portion of the elastic portion 81, contacts the bottom surface of the cushion cover 70, and has slidability in the horizontal direction.
The gap filling member 80 is arranged at the uppermost end portion of the base cover 60 (cover protrusion 61), and is arranged at a position corresponding to the lowermost end portion (cushion contact portion 71) of the seat cushion 2 (cushion cover 70). It is

The elastic portion 81 is an elastic rubber member having a through hole 81a in its central portion, the lower end portion of which is in contact with the upper surface of the support base 40, and the upper end portion of which is entirely covered by the cover portion 83. ing.
The elastic portion 81 extends upward through an opening provided in the base cover 60 while being supported by the support base 40 from below, and is provided so as to partially protrude from the base cover 60 .

The connecting portion 82 is a press-fit nut that is press-fitted into the lower end of the elastic portion 81, and is configured such that the through hole 81a of the elastic portion 81 and the screw hole provided in the connecting portion 82 communicate in the vertical direction. .
In the above configuration, the gap filling member 80 is attached to the support base 40 by fastening the connection bolt 84 from above while the connection portion 82 and the support base 40 are in contact with each other.
The cover portion 83 is a slidable member that covers the upper end of the elastic portion 81, and is specifically made of a thermoplastic resin material such as polyoxymethylene (POM).
The cover portion 83 is composed of a main body portion and a flange portion provided on the peripheral edge of the main body portion and extending downward.

With the above configuration, the gap filling member 80 abuts against the cushion abutting portion 71 of the seat cushion 2 (cushion cover 70) when the seat body is in a seatable state, and uses its elastic action to move the seat cushion 2 downward. can be supported from
In addition, since the gap filling member 80 is supported from below by the support base 40 which is a metal member, even when the occupant is seated on the seat body, the seating load of the occupant can be received.
Therefore, the vehicle seat is capable of receiving a seating load while avoiding an increase in the size of the cushion lock device 25, and allowing the seat cushion 2 to have some play to allow the cushion lock device 25 to function smoothly. Become S.

<Seat storage operation>
Next, the operation of moving the seat body from the seatable state to the retracted state will be described with reference to FIGS. 7 and 8. FIG. In FIGS. 7 and 8, the reclining device 12 and the cushion lock device 25 are indicated by black circles in the locked state, and by white circles in the unlocked state. 9 and 10 are the same.

When the vehicle seat S is in the seating ready state shown in FIG. The seat cushion 2 connected to the seat back 1 is supported from below by a gap filling member 80 attached to the support base 40 (base cover 60).

When moving the vehicle seat S from the seatable state to the stowed state, an operation lever 5 provided on the upper surface of the seat back 1 is operated.
When the seated person operates the operation lever 5, the locked state of the reclining device 12 and the cushion lock device 25 is released as shown in FIG. to the storage floor.
A known cable (not shown) is connected between the operating lever 5 and the reclining device 12 and the cushion locking device 25. A mechanism for releasing the locked state by pulling the cable by operating the operating lever 5. It has become.

As shown in FIG. 8, when the seat back 1 reaches a predetermined rotational position, the seat cushion 2 (cushion contact portion 71) contacts the surface of the base cover 60 (cover projection portion 61), and the base cover It moves toward the storage floor while sliding on the surface of 60 .
As shown in FIG. 9, when the front portion of the seat cushion 2 reaches the storage floor, the operation damper 6 provided on the bottom surface of the seat cushion 2 contacts the storage floor surface and is automatically operated. be. Along with this operation, the seat cushion 2 is locked again by the cushion locking device 25 .
A known cable (not shown) is connected between the operation damper 6 and the cushion lock device 25, and the cable is pulled by the operation of the operation damper 6 to switch between the locked state and the unlocked state. It has become.
Through the series of operations described above, the seat body is stored on the storage floor, and the vehicle seat S is switched to the stored state.

<Seat tip up operation>
Next, the operation of moving the seat body from the stored state to the tip-up state will be described with reference to FIGS. 9 and 10. FIG.
When the vehicle seat S is in the stowed state shown in FIG. 9, for example, the occupant manually raises the seat body to switch to the tip-up state shown in FIG.
At this time, since the cushion lock device 25 locks the pivoting motion of the seat cushion 2, the seat cushion 2 can be integrally raised by raising the seat back 1 upward.
In the tip-up state, by sliding the upper rail 4b toward the rear side of the seat with respect to the lower rail 4a, a wider luggage compartment space can be secured on the front side of the seat.

When the vehicle seat S is switched to the tip-up state shown in FIG. 10, the seat back 1 returns to the same position as the seatable state and is locked in the upright posture by the reclining device 12. - 特許庁

Finally, when moving the vehicle seat S from the tip-up state to the seatable state, the cushion lock device 25 is unlocked by pulling the operation damper 6 shown in FIG.
As the cushion lock device 25 is released, the seat cushion 2 is rotated downward with respect to the seat back 1 by the biasing force of the spiral spring 27 .
Through the series of operations described above, the vehicle seat S returns to the seatable state shown in FIG.

<Second Embodiment of Gap Filling Member>
Next, a gap filling member according to a second embodiment will be described with reference to FIG.
Note that the description of the content that overlaps with the gap filling member 80 described above will be omitted.
A gap filling member 180 according to the second embodiment is attached to the support base 40 side and extends from the support base 40 toward the seat cushion 2 in the same manner as the gap filling member 80 .

The gap filling member 180 is a plate-shaped spring member having elasticity in the vertical direction, and is provided at a spring attachment portion 181 attached to the upper surface of the base cover 60 and at an end portion opposite to the spring attachment portion 181. It is mainly composed of a spring contact portion 182 that can contact the cushion 2 (cushion cover 70 ) and a cover portion 183 that protects the surface of the spring contact portion 182 .
The gap filling member 180 extends longitudinally in the seat front-rear direction and has a curved shape when viewed in the seat width direction. Specifically, it extends rearward of the seat from the spring attachment portion 181 to the spring contact portion 182 while being inclined upward.

The spring attachment portion 181 is attached by fastening a connection bolt 184 from above to the upper surface of the front portion of the cover projecting portion 61 .
The spring contact portion 182 is an elastic portion having elasticity in the vertical direction, and is arranged so as to contact the bottom surface of the cushion contact portion 71 .
The cover portion 183 is a resin member that covers the surface of the spring contact portion 182. Specifically, the cover portion 183 is in contact with the contact surface 182a of the spring contact portion 182 that contacts the cushion contact portion 71. A contact surface 182b, which is a surface opposite to the surface 182a in the vertical direction and is capable of contacting the cover projecting portion 61, is surface-coated.
A predetermined gap is formed between the contact surface 182b of the spring contact portion 182 and the upper surface of the cover projecting portion 61 in the vertical direction.

Even with the above configuration, the seating load can be received while avoiding an increase in the size of the cushion lock device 25, and the seat cushion 2 can have some play to allow the cushion lock device 25 to function smoothly. .

<Third Embodiment of Gap Filling Member>
Next, a gap filling member according to a third embodiment will be described with reference to FIG.
A gap filling member 280 according to the third embodiment is attached to the seat cushion 2 side and extends from the seat cushion 2 toward the base cover 60 unlike the gap filling members 80 and 180 .
The gap filling member 280 is an elastic spring member having elasticity in the vertical direction, and is a protruding shaft attached to the seat cushion 2 in such a manner that the protruding length protruding from the seat cushion 2 toward the base cover 60 can be changed. 281, an elastic spring 282 attached to the outer peripheral surface of the projecting shaft 281 and attached to the seat cushion 2 in such a manner that the projecting length of the projecting shaft 281 can be changed, and the projecting tip portion of the projecting shaft 281 is protected. The cover portion 283 is mainly configured.

The protruding shaft 281 is a stepped bolt that is assembled to the side frame 21 of the seat cushion 2 from below. installed.
A flange 281 a of the protruding shaft 281 extends downward through an opening provided in the cushion cover 70 and is arranged to partially protrude from the cushion cover 70 .
A slide bearing 285 is attached as a bush around the opening hole provided in the side frame 21 .

The elastic spring 282 is an elastic part having elasticity in the vertical direction, specifically a coiled wave spring, and is arranged between the flange 281a portion of the projecting shaft 281 and the side frame 21 in the vertical direction. It is
The cover portion 283 is a resin member that covers the surface of the flange 281a of the protruding shaft 281. Specifically, the cover portion 283 is composed of a main body portion and a flange portion that is provided on the peripheral edge of the main body portion and extends upward. It is attached so as to sandwich the flange 281a.

Even with the above configuration, the seating load can be received while avoiding an increase in the size of the cushion lock device 25, and the seat cushion 2 can have some play to allow the cushion lock device 25 to function smoothly. .

<Other embodiments>
Although the storage floor is formed in front of the vehicle seat S in the above embodiment, the storage floor may be formed in the rear of the vehicle seat S without any particular limitation.
In that case, it is desirable that the vertical positional relationship between the seat back 1 and the seat cushion 2 is reversed when the seat body is stored on the storage floor.

In the above embodiment, the storage state of the seat body has been described as corresponding to the moving state in the scope of claims, but it is not particularly limited, and the tip-up state or the like in this embodiment corresponds to the moving state. is of course good.

In the above embodiment, the support base 40 is fixed to the vehicle body floor via the rail device 4 as shown in FIG. It may be changed as appropriate.
Alternatively, instead of the support base 40, a support bracket (support member) (not shown) fixed on the vehicle body floor may be employed.

In the above embodiment, as shown in FIGS. 6 and 12, the cover portions 83 and 283 are formed as covers made of resin. It may be formed by applying or spraying a coating agent such as the above to the target site.
As shown in FIG. 11, the cover portion 183 is formed by coating the surface of the target portion with a resin material. Also good.

In the above embodiment, as shown in FIG. 12, the protruding shaft 281 is a stepped bolt attached to the seat cushion 2 in such a manner that the protruding length protruding from the seat cushion 2 toward the base cover 60 can be changed. However, there is no particular limitation, and a known ejector pin or the like may be employed instead of the stepped bolt.

In the above embodiment, a storable vehicle seat used in an automobile was described as a specific example, but the seat is not particularly limited, and can be used as a vehicle seat for trains, buses, etc., as well as for vehicles such as airplanes, ships, etc. can also be used.

In this embodiment, the vehicle seat according to the present invention has been mainly described.
However, the above embodiment is merely an example for facilitating understanding of the present invention, and does not limit the present invention. The present invention can be modified and improved without departing from its spirit, and the present invention includes equivalents thereof.
In particular, the shape, arrangement, and configuration of the gap-filling member described in the above embodiment are merely examples, and do not limit the present invention.

S Vehicle seat 1 Seat back 1a, 2a Cushion pad 1b, 2b Cover 1c Cover overhang 2 Seat cushion 3 Headrest 4 Rail device 4a Lower rail 4b Upper rail 5 Operation lever 6 Operation damper 10 Back frame 11 Connection bracket 12 Reclining device 13 Seat rotation Drive shaft 14 Spiral spring 20 Cushion frame 21 Side frame 22 Front connection pipe 23 Central connection pipe 24 Pan frame 25 Cushion lock device 26 Cushion rotation shaft 27 Spiral spring 40 Support base (support member)
41 Side base portion 42 First base connecting portion 43 Second base connecting portion 44 Reinforcing base portion 60 Base cover 61 Cover projection portion 62 Cover housing recess 70 Cushion cover 71 Cushion contact portion 80, 180, 280 Gap filling member 81 Elastic portion 81a through hole 82 connecting portion 83 cover portion 84 connecting bolt 181 spring mounting portion 182 spring contact portion 182a, 182b contact surface 183 cover portion 184 connecting bolt 281 projecting shaft 281a flange 282 elastic spring 283 cover portion 284 connecting nut 285 slide bearing

Claims (6)

a seat body having a seat back and a seat cushion;
A cushion lock device that rotatably connects the seat cushion to the seat back and locks the rotational movement of the seat cushion when the seat body is in a seating ready state in which a occupant can be seated. and
A vehicle seat switchable between the seatable state and a moving state in which the seat body is moved from the seatable state,
a support member provided on a vehicle body floor for supporting the seat body;
Attached to one of the seat cushion and the support member, the seat cushion and the support member are attached to one of the seat cushion and the support member to fill a gap formed between the seat cushion and the support member in the up-down direction when the seat is in the seatable state. a gap-filling member extending to contact the other of the support members ;
The gap filling member has an elastic portion provided on the one side and having elasticity in the vertical direction, and a cover portion provided on the elastic portion and having slidability in the horizontal direction,
The vehicle seat, wherein the cover portion is attached so as to sandwich the elastic portion in the seat front-rear direction . a seat body having a seat back and a seat cushion;
A cushion lock device that rotatably connects the seat cushion to the seat back and locks the rotational movement of the seat cushion when the seat body is in a seating ready state in which a occupant can be seated. and
A vehicle seat switchable between the seatable state and a moving state in which the seat body is moved from the seatable state,
a support member provided on a vehicle body floor for supporting the seat body;
Attached to one of the seat cushion and the support member, the seat cushion and the support member are attached to one of the seat cushion and the support member to fill a gap formed between the seat cushion and the support member in the up-down direction when the seat is in the seatable state. a gap-filling member extending to contact the other of the support members ;
The gap-filling member is a plate-shaped spring having elasticity, and is provided at a spring attachment portion attached to the support member and at an end portion opposite to the spring attachment portion, and is capable of coming into contact with the seat cushion. and a spring contact portion,
The spring contact portion has a contact surface that contacts the seat cushion and a surface that is opposite to the contact surface in the vertical direction and that can contact the support member. A vehicle seat, characterized by being provided with a cover part . a seat body having a seat back and a seat cushion;
A cushion lock device that rotatably connects the seat cushion to the seat back and locks the rotational movement of the seat cushion when the seat body is in a seating ready state in which a occupant can be seated. and
A vehicle seat switchable between the seatable state and a moving state in which the seat body is moved from the seatable state,
a support member provided on a vehicle body floor for supporting the seat body;
Attached to one of the seat cushion and the support member, the seat cushion and the support member are attached to one of the seat cushion and the support member to fill a gap formed between the seat cushion and the support member in the up-down direction when the seat is in the seatable state. a gap-filling member extending to contact the other of the support members ;
The gap-filling member has a protrusion attached to the seat cushion in such a manner that the length of the protrusion that protrudes from the seat cushion toward the support member can be changed,
The seat cushion has a cushion frame serving as a skeleton,
The gap filling member includes a protruding shaft as the protruding portion, an elastic spring attached to the outer peripheral surface of the protruding shaft, and attached to the cushion frame in such a manner that the protruding length of the protruding shaft can be changed, and a cover portion for protecting a projecting tip portion of the projecting shaft . a seat body having a seat back and a seat cushion;
A cushion lock device that rotatably connects the seat cushion to the seat back and locks the rotational movement of the seat cushion when the seat body is in a seating ready state in which a occupant can be seated. and
A vehicle seat switchable between the seatable state and a moving state in which the seat body is moved from the seatable state,
a support member provided on a vehicle body floor for supporting the seat body;
Attached to one of the seat cushion and the support member, the seat cushion and the support member are attached to one of the seat cushion and the support member to fill a gap formed between the seat cushion and the support member in the up-down direction when the seat is in the seatable state. a gap-filling member extending to contact the other of the support members ;
The moving state is a stowed state in which the seat back is laid forward with respect to the vehicle body floor and the seat cushion is disposed between the seat back and the vehicle body floor,
The seat back is configured by placing a cushion pad on a back frame serving as a skeleton and covering it with an outer skin,
The upholstery has an upholstery projecting portion that partially extends from the main body portion of the seat back in order to cover the gap-filling member from above in the stowed state. vehicle seat. The moving state is a stowed state in which the seat back is laid down on the vehicle body floor and the seat cushion is disposed between the seat back and the vehicle body floor,
The vehicle seat according to any one of claims 1 to 4 , wherein a slidable cover portion is provided on a portion of the gap filling member that contacts the seat cushion. The support member is a support base having a shape corresponding to the seat cushion, and includes a base cover covering the support base from above,
On the surface of the base cover, left and right cover protrusions are provided on the side portions in the seat width direction and formed to protrude upward toward the seat cushion, and between the left and right cover protrusions. provided with a cover accommodating recess formed to be recessed below the left and right cover protrusions for accommodating an object,
6. The gap-filling member according to any one of claims 1 to 5 , wherein the gap filling member is attached to an upper end portion of the cover protrusion or a lower end portion of the seat cushion facing the cover protrusion. Vehicle seat as described.

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