JP2024071552A - Vehicle seats - Google Patents

Abstract

To provide a vehicle seat with an ottoman device capable of suppressing size increase of a seat with a simple structure.SOLUTION: A vehicle seat S is a seat in which a seat body can be switched between a seating possible state and a storage state. The vehicle seat comprises: a cushion lock unit 60 having a cushion operation lever 64 which is operated for switching the seat body state between the seating possible state and the storage state; and an ottoman device 70 which is rotatably attached to a front part of the seat cushion 2 through an ottoman rotary shaft 71 and has a leg support member 80 for supporting from downward, leg parts of a seated person. The cushion operation lever 64 and the ottoman rotary shaft 71 are arranged in a seat width direction, and is arranged so as not to protrude to a front side of the seat relative to a front end part of the seat cushion.SELECTED DRAWING: Figure 2

Description

The present invention relates to a vehicle seat, and in particular to a vehicle seat in which a seat body having a seat back and a seat cushion can be switched from a seatable state.

Conventionally, vehicle seats in which the seat back and seat cushion constituting the seat body can be switched from a seated state to a seated state in which an occupant can sit are already known, and among these vehicle seats there are those that further include an ottoman device that is attached to the front part of the seat cushion and can support the legs of the occupant from below (see, for example, Patent Document 1).

The vehicle seat described in Patent Document 1 is a seat with an ottoman device that can be arranged in three different configurations: a seated state in which a passenger can sit, a stored state in which the seat body is stored in a storage floor, and a tip-up state in which the seat body is flipped up.
Specifically, the ottoman device is mainly composed of an ottoman rotation shaft (base member) that is attached to the seat cushion via a reinforcing member, and a leg support member (ottoman) that is rotatably attached via the ottoman rotation shaft.
The vehicle seat also has a switching operation lever (grip member) that is attached to a front portion of the seat cushion so as to protrude forward from the seat cushion and is operated to arrange the seat.
At this time, the ottoman pivot shaft and the leg support member are disposed so as to protrude forward of the seat further than the seat cushion and the switching operation lever in order to prevent interference with the switching operation lever.

JP 2015-127157 A

However, in a vehicle seat that allows seat arrangements as described in Patent Document 1, the configuration is relatively complicated and the number of components increases, which may lead to an increase in the size and weight of the entire seat. In particular, in a vehicle seat with an ottoman device, the ottoman device protrudes forward of the seat beyond the seat cushion, which may lead to an increase in the size of the seat in the front-rear direction.
Therefore, there has been a demand for a vehicle seat that can suppress an increase in the size of the entire seat including the ottoman device through a simple configuration.

Furthermore, for vehicle seats such as those described in Patent Document 1, there has been a demand for vehicle seats that are compact while improving the mounting rigidity of various devices, including the ottoman device.

The present invention has been made in consideration of the above problems, and an object of the present invention is to provide a vehicle seat with an ottoman device that can prevent the seat from becoming larger with a simple configuration, in a seat where the seat body can be switched from a seatable state.
Another object of the present invention is to provide a vehicle seat which is compact in size while improving the mounting rigidity of various devices including an ottoman device.

The above problem is solved by a vehicle seat of the present invention, which comprises a seat body having a seat back and a seat cushion, and which is switchable between a seatable state in which a seat occupant can sit on the seat body and a moving state in which the seat body is moved from the seatable state, and which comprises a seat switching device which has a switching operation lever which is operated to switch the seat body between the seatable state and the moving state and which operates in conjunction with the operation of the switching operation lever, and an ottoman device which is rotatably attached to a front portion of the seat cushion via an ottoman rotation shaft, which has a leg support member for supporting the legs of the seat occupant from below, and which can be rotated between a stored position in which the leg support member is stored on the seat cushion side and a deployed position in which it is rotated and moved toward the front of the seat from the stored position, and which is attached to the front portion of the seat cushion, and which is arranged side by side in the seat width direction.
As described above, in a seat in which the seat body can be switched from a seatable state, the switching operating lever and the ottoman rotation shaft are arranged side by side in the seat width direction, making it easy to arrange the ottoman device compactly in the fore-and-aft direction of the seat.
Therefore, it is possible to realize a vehicle seat with an ottoman device that has a simple configuration and prevents the seat from becoming large.

In this case, it is preferable that the switching operation lever and the ottoman rotation shaft do not protrude further forward than the front end of the seat cushion in the seat front-rear direction.
With the above-described configuration, the ottoman device can be arranged more compactly in the front-rear direction of the seat.

In this case, it is preferable that when the leg support member is moved to the deployed position, the front leg support portion of the leg support member located on the front side of the seat is formed to be wider in the seat width direction than the rear leg support portion supported by the ottoman pivot shaft.
With the above-described configuration, the leg support member can be stored compactly in the stored position, and can support the legs of a seated occupant over a relatively wide area in the deployed position.

In this case, the seat switching device is 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 is in the seatable state, and further includes a rail device that is attached to the vehicle floor, supports the seat body so that it can move in the fore-and-aft direction of the seat, and locks the movement of the seat body, the rail device being attached to a front portion of the seat cushion and having a rail operation lever that is operated to release the locked state of the seat body, the ottoman rotation shaft being arranged between the cushion operation lever and the rail operation lever as the switching operation lever in the seat width direction, and the ottoman rotation shaft, the cushion operation lever, and the rail operation lever being arranged side by side in the seat width direction.
With the above-described configuration, the ottoman device, cushion lock device and rail device can be prevented from protruding forward of the seat cushion, thereby making it possible to further reduce the size of the seat in the fore-and-aft direction.

In this case, it is preferable that the ottoman device is provided with a cushion frame that forms the skeleton of the seat cushion, and that the ottoman device has an ottoman pillar that supports the leg support member so that it can move back and forth between a reference position where the leg support member is positioned on the seat cushion side and a protruding position where the leg support member protrudes toward the front of the seat from the reference position, and a pillar support member that is attached to the front end portion of the cushion frame and supports the ottoman pillar, and that the cushion frame has a lever mounting bracket for mounting the switching operating lever at the front end portion of the cushion frame, and a reinforcing member that is positioned above or below the ottoman rotation axis and extends in the seat width direction to connect the pillar support member and the lever mounting bracket.
With the above-described configuration, the seat can be made compact, while the mounting rigidity of each component part of the ottoman device can be improved through a simple configuration and arrangement.

In this case, the seat cushion is constructed by placing a cushion pad on the upper surface of the cushion frame and covering it with a covering material, and the lever mounting bracket is preferably positioned above the ottoman rotation axis and has a plate-shaped pan frame for supporting the cushion pad from below.
With the above-described configuration, the cushion pad can be efficiently supported in the seat cushion, thereby improving the seating comfort of the seated occupant.

In this case, the seat back is rotatably connected to the vehicle floor, and a reclining device is provided that locks the rotational movement of the seat back when the seat is in the seatable state, the reclining device being arranged at a lateral position of the seat back and having a reclining body that operates to lock the rotational movement of the seat back, and the switching operation lever and the reclining body being arranged more inward than the outer end of the seat cushion in the seat width direction, and being arranged at the same position as each other in the seat width direction.
With the above-described configuration, the components of the reclining device can be arranged compactly, and an increase in size of the seat in the seat width direction can be suppressed.

In this case, the moving state refers to a storage state in which the seat body is moved and stored on a storage floor formed at a lower position than the vehicle floor, and an elastic floor abutment member is attached to the lower end portion of the seat cushion so as to abut against the storage floor when the seat body is moved to the stored state, and it is preferable that the switching operation lever and the floor abutment member are positioned more inward than the outer end of the seat cushion in the seat width direction and are positioned at the same position as each other in the seat width direction.
With the above-described configuration, the floor abutment member can be arranged compactly.

According to the present invention, it is possible to realize a vehicle seat with an ottoman device that has a simple configuration and prevents the seat from becoming large, in a seat where the seat body can be switched from a seating position.
Furthermore, according to the present invention, the ottoman device can be arranged more compactly in the front-rear direction of the seat.
Furthermore, according to the present invention, the leg support member can be stored compactly in the stored position, and can support the legs of a seated occupant over a wide area in the deployed position.
Furthermore, according to the present invention, the seat can be made even more compact in the front-rear direction.
Furthermore, according to the present invention, while the size of the seat is reduced, the mounting rigidity of each component part of the ottoman device can be improved by using a simple configuration and arrangement.
Furthermore, according to the present invention, the seating comfort of the seat occupant can be improved.
Furthermore, according to the present invention, the components of the reclining device can be arranged compactly, and an increase in size of the seat in the seat width direction can be suppressed.
Furthermore, according to the present invention, the floor abutment member can be arranged compactly.

1 is a perspective view of a vehicle seat according to an embodiment of the present invention; FIG. 2 is a cross-sectional perspective view showing a seat cushion and an ottoman device. FIG. 2 is a perspective view of a seat frame that serves as a framework of the vehicle seat. FIG. 4 is an enlarged view of a main portion of FIG. 3 . FIG. 2 is a top view showing the cushion frame and the ottoman device. 4 is an enlarged view of a main portion showing a cushion frame and a lever mounting bracket. FIG. 13 is an enlarged view of the main parts showing the cushion frame and the lever mounting bracket as viewed from a different angle. FIG. FIG. 2 is a side view of the seat frame, showing the reclining device. FIG. 4 is a side view of the seat frame, showing a cushion lock device. FIG. 13A to 13C are diagrams illustrating the operation of moving from a seating state to a stored state. FIG. FIG. 13A to 13C are diagrams illustrating the operation of returning from a tip-up state to a seatable state. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vehicle seat according to an embodiment of the present invention will be described below with reference to FIGS.
This embodiment relates to an invention of a vehicle seat in which a seat body having a seat back and a seat cushion can be switched between a seatable state and a stored state, and which is equipped with a cushion lock device having a cushion operating lever that is operated to switch the seat body between the seatable state and the stored state, and an ottoman device that is attached to the front portion of the seat cushion so as to be rotatable via an ottoman pivot shaft, has a leg support member for supporting the legs of a seated person from below, and is capable of rotating the leg support member between a stored position and an deployed position, wherein the cushion operating lever is attached to the front portion of the seat cushion, the cushion operating lever and the ottoman pivot shaft are arranged side by side in the seat width direction, and does not protrude forward of the seat beyond the front end of the seat cushion in the seat fore-and-aft direction.
In addition, the side of the vehicle seat on which an occupant sits relative to the seat back is the front side of the seat.

The vehicle seat S of the present embodiment is, for example, a rear seat that corresponds to a rear seat of a vehicle. Note that the vehicle seat S can also be used as a middle seat in the second row in a vehicle that has three rows of seats in the front-rear direction of the vehicle.
The vehicle seat S is a seat that can be arranged in three different configurations: a seatable state in which a seated person can sit, a stored state in which the seat body is stored in a storage floor, and a tip-up state in which the seat body is flipped up.
Specifically, when the seat occupant pulls the first reclining lever 54 at the top end of the seat body from the seatable state shown in Fig. 10, the seat body is folded forward (see Fig. 11) and switched to the stored state shown in Fig. 12 in which the seat body is stored on the storage floor. Then, when the seat occupant manually raises the seat body upward from the stored state, the seat body is switched to the tip-up state shown in Fig. 13. Furthermore, when the seat occupant pulls the cushion operation lever 64 at the front end of the seat body (seat cushion) from the tip-up state (see Fig. 14), a part of the seat body (seat cushion) rotates downward and returns to the seatable state shown in Fig. 15. Details will be described later.

As shown in Figures 1 to 3, a vehicle seat S is mainly composed of a seat body having a seat back 1, a seat cushion 2, and a headrest 3, a support base 30 that supports the seat body from below, and left and right rail devices 40 that are attached between the vehicle floor and the support base 30, support the seat body so that it can move in the front-rear direction, and lock the movement of the seat body.
As shown in FIG. 3, the vehicle seat S is equipped with a reclining device 50 that rotatably connects the seat back 1 to the support base 30 and locks the rotational movement of the seat back 1 when the seat is in a seatable state and a tip-up state, and a cushion locking device 60 that rotatably connects the seat cushion 2 to the seat back 1 and locks the rotational movement of the seat cushion 2 when the seat is in a seatable state, a stored state, and a tip-up state.
Furthermore, the vehicle seat S is equipped with an ottoman device 70 which is attached so as to be rotatable relative to the front portion of the seat cushion 2, has a leg support member 80 which supports the legs of the seated occupant from below, and can be rotated between a stored position shown in FIG. 1 in which the leg support member 80 is stored on the seat cushion 2 side, and an deployed position shown in FIG. 2 in which the leg support member 80 is rotated and moved toward the front of the seat from the stored position.
In addition, a recessed storage floor is provided on the front side of the vehicle seat S, the storage floor being positioned lower than the vehicle body floor.

As shown in FIG. 1, the seat back 1 is a backrest portion that supports the back of an occupant from behind, and is configured by placing a cushion pad 1a on a back frame 10 shown in FIG. 3, which serves as a skeleton, and covering it with a skin material 1b.
The seat cushion 2 is a seating portion that supports an occupant from below, and is configured by placing a cushion pad 2a on a cushion frame 20 that serves as a framework, as shown in FIG. 3, and covering the cushion with a skin material 2b.
The headrest 3 supports the head of the occupant from behind, and is configured by placing a cushion pad on a pillar (not shown) that serves as a core material and covering it with a skin.
2, a storage recess 2c for storing an ottoman device 70 (ottoman rotation shaft 71) is formed in the center of the front end of the seat cushion 2 in the seat width direction. The seat cushion 2 and the ottoman device 70 are configured to have a generally integrated appearance from their outer surfaces.
The storage recess 2c is formed at the front end of the seat cushion 2 such that its lower portion is recessed toward the rear of the seat, and the seating surface (upper surface) of the seat cushion 2 is secured even at the front end portion of the seat cushion 2. That is, the cushion pad 1a is placed also at the front end portion of the seat cushion 2 and is covered with the cover material 1b.
Therefore, the seating comfort of the seated occupant is not impaired. Also, the intrusion of foreign matter from the outside (from above) into the gaps between the components of the ottoman device 70 can be suppressed.

As shown in Figure 3, the back frame 10 consists of a rectangular frame-shaped body that forms the skeleton of the seat back 1, and left and right connecting brackets 11 are attached to the lower part of the outer surface of the back frame 10 in the seat width direction for connecting it to the support base 30.
The connecting bracket 11 is made of a bow-shaped sheet metal member extending in the vertical direction, and the upper end of the connecting bracket 11 is attached to the back frame 10 and the lower end is attached to the support base 30.
A reclining device 50 (reclining body 51) that rotatably connects the back frame 10 to the support base 30 is attached to the lower end of the right-side connecting bracket 11, and a back rotation shaft 52 that is journalled to the support base 30 in the seat width direction is provided at the lower end of the left-side connecting bracket 11.

As shown in Figures 3 to 5, the cushion frame 20 is a rectangular frame-shaped body that forms the skeleton of the seat cushion 2, and is mainly composed of left and right side frames 21 arranged on the sides in the seat width direction, a front frame 22 that connects the front parts of each side frame 21, a pipe-shaped rear frame 23 that connects the rear parts of each side frame 21, a wire-shaped central frame 24 that connects the central parts of each side frame 21, and a pan frame 25 as a plate-shaped frame that connects the front frame 22, the rear frame 23 and the central frame 24.

The side frame 21 is made of a sheet metal member that is elongated in the fore-and-aft direction of the seat and has a roughly C-shaped cross section. Specifically, it is mainly composed of a frame side wall portion 21a extending in the vertical direction, and a frame upper wall portion 21b and a frame bottom wall portion 21c that are bent from both ends of the frame side wall portion 21a in the vertical direction and extend outward in the seat width direction.
A cushion operating lever 64 is attached to the front end portion of the right side frame 21 via a lever mounting bracket 27, and a rail operating lever 43 is attached to the front end portion of the left side frame via a lever mounting bracket 27.
An ottoman operating lever 76 of the ottoman device 70 is attached to the front portion of the outer surface in the seat width direction of the right side frame 21 (frame side wall portion 21a), and a second reclining operating lever 55 of the reclining device 50 is attached to the center portion of the outer surface. A cushion lock device 60 is attached to the rear end portion of the outer surface in the seat width direction of the left side frame 21 (frame side wall portion 21a).

The left and right side frames 21 are offset in the seat width direction from the left and right rail devices 40, specifically, to the right of the left and right rail devices 40. This offset arrangement makes it possible to secure space on the outer surface of the left side frame 21, and in addition to the cushion lock device 60, the armrest 4 and the seat belt buckle 5 shown in FIG. 1 are attached in this space. As a result, it is possible to prevent the vehicle seat S from becoming larger in the seat width direction.

As shown in FIGS. 4 and 5, the front frame 22 is made of a composite member made up of a combination of a plurality of square pipes, and extends in the seat width direction.
The front frame 22 has left and right frame side portions 22a arranged to penetrate the side surfaces of the left and right side frames 21, respectively, and a frame central portion 22b that connects the inner ends of the left and right frame side portions 22a in the seat width direction and is arranged to protrude further forward of the seat than the frame side portions 22a.
An ottoman locking member 75 is attached to the rear surface of the inner end of the frame side portion 22a on the ottoman operating lever 76 side, of the left and right frame side portions 22a.
A pillar support member 73 for supporting an ottoman pillar 72 is attached by welding to the bottom surface of the inner end of the frame side portion 22a.
The frame center portion 22b is attached by welding to the left and right frame side portions 22a in a state of abutting against the front surfaces of the frame side portions 22a.
Three pillar support members 73 are attached by welding to the bottom surface of the frame central portion 22b, the pillar support members 73 being arranged at predetermined intervals in the seat width direction.

The rear frame 23 consists of a number of pipe members spaced apart in the fore-and-aft direction of the seat, and a base abutment member 26 is attached to the bottom surface of the lateral portion of the rear frame 23 on the side to which the reclining device 50 and ottoman device 70 are attached. The base abutment member 26 is arranged to abut against the support base 30 (base cover 35) when the seat is ready to be seated.
The base abutment member 26 is composed of a frame mounting portion 26a that is attached by welding while being sandwiched between the rear frame 23, and a resin base abutment portion 26b that fits into a part of the rear frame 23 and the frame mounting portion 26a and protrudes downward from the frame mounting portion 26a.

In the above frame configuration, as shown in FIG. 4, the portions of the front frame 22 where the frame side portions 22a and the frame central portion 22b are connected support the left and right pillar support members 73.
Therefore, the support area of the front frame 22 for the left and right pillar support members 73 can be secured, and the support rigidity of the cushion frame 20 for the pillar support members 73 can be increased.

In the above frame configuration, as shown in FIG. 5, the portion of the front frame 22 where the frame side portion 22a and the frame center portion 22b are connected is attached to the pan frame 25 by welding.
Therefore, the supporting rigidity of the pan frame 25 by the front frame 22 can be increased.

In the above frame configuration, as shown in Figure 5, the base abutment member 26 and the pan frame 25 are connected to the rear frame 23, and the base abutment member 26 is further positioned so as to overlap a portion of the pan frame 25 in the vertical direction.
Therefore, the support rigidity of the base abutment member 26 and the pan frame 25 can be increased.

As shown in Figures 4 to 7, the lever mounting bracket 27 is a member for mounting the cushion operating lever 64 and the rail operating lever 43 to the cushion frame 20, and is attached to the front end portion of the side frame 21 and is positioned above the ottoman rotation axis.
As shown in Figures 6 and 7, the lever mounting bracket 27 is mainly composed of an upper plate portion 27a that is attached in abutting contact with the frame upper wall portion 21b of the side frame 21 and extends forward of the seat, a lower plate portion 27b that is attached in abutting contact with the frame side wall portion 21a and the frame bottom wall portion 21c and extends forward of the seat, a connecting wire portion 27c that connects the upper plate portion 27a and the lower plate portion 27b, and a lever mounting portion 27d that is attached in a surrounded by the connecting wire portion 27c and is for mounting the cushion operating lever 64 (rail operating lever 43).

The upper plate portion 27a is a plate-like member having a bent crank shape with its front portion projecting upward more than its rear portion, and also serves to support the seat cushion 2 (cushion pad 2a) from below.
The lower plate portion 27b is a plate-like member having a box shape with its outer edge portion formed so as to protrude upward, and a floor abutment member 28 is attached to the bottom surface of the lower plate portion 27b, which can abut against the storage floor when the seat body is moved to the stored state.
The connecting wire portion 27c is composed of left and right first extension portions 27ca extending in the fore-and-aft direction of the seat, left and right second extension portions 27cb that bend continuously from the front ends of the left and right first extension portions 27ca and extend downward, and a third extension portion 27cc that connects the lower ends of the left and right second extension portions 27cb.
The lever attachment portion 27d is surrounded by the left and right second extending portions 27cb and the third extending portion 27cc and is attached thereto by welding.
In addition, the lever attachment portion 27d has an attachment hole for attaching the cushion operating lever 64 (rail operating lever 43).

As shown in Figures 6 and 7, the floor contact member 28 is made of a known elastic resin material and is positioned inside the outer end of the seat cushion 2 (cushion frame 20) in the seat width direction. In addition, the floor contact member 28 and the cushion operating lever 64 (rail operating lever 43) are positioned at the same position as each other in the seat width direction.

In the above configuration, as shown in FIGS. 4 and 5, in order to ensure the mounting rigidity of the left and right lever mounting brackets 27, reinforcing wires 29 are provided for connecting the left and right lever mounting brackets 27 and the front frame 22.
Specifically, the reinforcing wire 29 has a first reinforcing wire 29a having an approximately U-shape that connects the left and right lever mounting brackets 27 (upper plate portions 27a), and a second reinforcing wire 29b having an approximately inverted U-shape that is suspended between the central portion of the first reinforcing wire 29a in the seat width direction and the front frame 22 (frame central portion 22b).
The reinforcing wire 29 is disposed at a position above the ottoman rotation axis.

As shown in Figure 3, the support base 30 is a member that supports the seat body, and is provided on the lateral portion in the seat width direction. It comprises left and right side base portions 31 arranged along the left and right rail devices 40, a front base connecting portion 32 that connects the front portions of each side base portion 31, a rear base connecting portion 33 that connects the rear portions of each side base portion 31, and left and right reinforcing base portions 34 attached to the upper surfaces of each side base portion 31.
The left and right ends of each of the front base connecting portion 32 and the rear base connecting portion 33 are sandwiched and connected between the side base portion 31 and the reinforcing base portion 34.
The support base 30 is covered from above by a base cover 35 .

As shown in FIGS. 1 and 2, the base cover 35 is a resin molded part that covers the entire support base 30 and the rail device 40 from above.
The base cover 35 not only protects the support base 30 and the rail device 40 from the outside, but also guides the movement of the seat body (seat cushion 2) when the seat body switches from a seatable state to a stored state.
The base cover 35 mainly comprises left and right cover protrusions 35a which are provided on the lateral portions in the seat width direction and are formed so as to protrude upward toward the seat cushion 2, and a cover accommodating recess 35b which is provided between the left and right cover protrusions 35a, is formed so as to be recessed downwardly relative to the cover protrusions 35a, and is for accommodating items.
The cover protrusion 35a has the highest upper surface at the center portion in the front-rear direction of the seat, and the storage floor is disposed on the extension line of the inclined surface in front of the seat.
9, when the seat body moves from the seatable state to the stored state, the cover protrusion 35a has a function of abutting against the base abutment member 26 provided at the lower end of the seat cushion 2 and causing the base abutment member 26 to slide (glide) toward the storage floor. In other words, the seat cushion 2 is guided by the base cover 35 to move smoothly toward the storage floor.

As shown in FIG. 3, the rail device 40 is disposed between the seat body and the vehicle floor in the vertical direction, and is mainly composed of left and right lower rails 41 that are fixed to the vehicle floor and extend in the fore-and-aft direction of the seat, left and right upper rails 42 that are supported slidably along the lower rails 41, a locking member (not shown) that locks the upper rails 42 against the lower rails 41 so that they cannot slide, and a rail operating lever 43 that is operated to release the locked state of the locking member.
A support base 30 is mounted on the upper surfaces of the left and right upper rails 42 .
The rail operating lever 43 is attached to the front end portion of the left side frame 21 via a lever attachment bracket 27 .

As shown in Figs. 3 and 8, the reclining device 50 is disposed on the inner surface of the connecting bracket 11 on the right side in the seat width direction, and prevents interference with the cushion frame 20 in the seat width direction.
The reclining device 50 is mainly composed of a reclining body 51 that is driven when rotating the back frame 10, a back rotation shaft 52, a spiral spring 53 that urges the back frame 10 to rotate forward around the back rotation shaft 52, a first reclining operation lever 54 shown in Figure 1 and a second reclining operation lever 55 shown in Figure 5 that are operated to release the locked state of the back frame 10, a first reclining cable 56 that connects the first reclining operation lever 54 and the reclining body 51, and a second reclining cable 57 that connects the second reclining operation lever 55 and the reclining body 51.

The reclining body 51 has a known locking mechanism, and the state of the back frame 10 can be switched between a locked state in which it is fixed to the support base 30 and an unlocked state in which it is rotatable relative to the support base 30.
The back rotation shaft 52 is supported on the back frame 10 side and the support base 30 side in the seat width direction, and one end of the spiral spring 53 is anchored to the back frame 10 side and the other end is anchored to the support base 30 side.
The first reclining cable 56 is pulled by the operation of the first reclining operation lever 54 to switch the seat back 1 from a locked state to an unlocked state.
In addition, the second reclining cable 57 is pulled by the operation of the second reclining operation lever 55 to switch the seat back 1 from a locked state to an unlocked state.

In the above configuration, the reclining device 50 locks the back frame 10 in the upright position shown in FIG. 10, and the locked state is released when the first reclining operation lever 54 (second reclining operation lever 55) is operated, and the back frame 10 is rotated forward by the biasing force of the spiral spring 53, allowing it to be folded toward the vehicle floor (see FIG. 12).

As shown in Figs. 3 and 9, the cushion lock device 60 is disposed on the outer surface of the left side frame 21 in the seat width direction.
The cushion locking device 60 is mainly composed of a locking body 61 for locking the rotational movement of the cushion frame 20, a cushion rotation shaft 62, a spiral spring 63 for urging the cushion frame 20 downward around the cushion rotation shaft 62, a cushion operating lever 64 that is operated to release the locked state of the cushion frame 20, a first cushion cable 65 that connects the above-mentioned first recliner operating lever 54 and the locking body 61, and a second cushion cable 66 that connects the cushion operating lever 64 and the locking body 61.

The cushion rotation shaft 62 is supported by the back frame 10 side and the cushion frame 20 side in the seat width direction, and one end of the spiral spring 63 is anchored to the back frame 10 side and the other end is anchored to the cushion frame 20 side. Note that the spiral spring 63 may be omitted.
The cushion operating lever 64 is attached to the front end portion of the cushion frame 20 and is disposed at the right end portion of the cushion frame 20, in other words, at the end portion on the vehicle door side of the vehicle seat S. Therefore, it is possible for an occupant to operate the cushion operating lever 64 from outside the vehicle with the vehicle door open.

The first cushion cable 65 extends vertically along the outer surface of the back frame 10, and is pulled by the operation of the first recliner operating lever 54 to switch the cushion frame 20 from a locked state to an unlocked state.
In addition, the second cushion cable 66 extends in the front-rear direction of the seat along the outer surface of the cushion frame 20, and is pulled by the operation of the cushion operating lever 64 to switch the cushion frame 20 from a locked state to an unlocked state.

The cushion lock device 60 locks the cushion frame 20 in the horizontal position shown in Figure 10, and when the first recliner operating lever 54 is operated, it releases the locked state in conjunction with the back frame 10, and the cushion frame 20 can be folded toward the vehicle floor while being urged forward by the force of the spiral spring 63 (see Figure 12).
Furthermore, when the cushion operating lever 64 is operated in the seatable state, the cushion locking device 60 releases the locked state of the cushion frame 20 and raises the cushion frame 20 upward against the biasing force of the spiral spring 63, thereby moving it to the tip-up state shown in Fig. 13. Then, when the cushion operating lever 64 is operated again in the tip-up state (see Fig. 14), the biasing force of the spiral spring 63 causes the cushion frame 20 to rotate downward relative to the back frame 10, returning it to the seatable state shown in Fig. 15.

In the above configuration, as shown in FIG. 3, the reclining device 50 is disposed on the right side of the seat body in the seat width direction, while the cushion lock device 60 is disposed on the left side of the seat body. This allows the relatively large components to be disposed in a well-balanced manner, improving the balance of the entire seat body.

In the above configuration, as shown in FIG. 5, the cushion operating lever 64 and the reclining body 51 are positioned inside the outer end of the seat cushion 2 in the seat width direction, and are positioned at the same position as each other in the seat width direction.
Therefore, the components of the cushion lock device 60 and the reclining device 50 can be arranged compactly.

As shown in FIGS. 2 to 5, the ottoman device 70 is attached to the front end portion of the seat cushion 2, and is disposed between the cushion operating lever 64 and the rail operating lever 43 in the seat width direction.
The ottoman device 70 comprises an ottoman rotation shaft 71 that extends in the seat width direction and is journalled to the cushion frame 20 (front frame 22), and a leg support member 80 that rotates around the ottoman rotation shaft 71 relative to the cushion frame 20. The ottoman device 70 is a device that can rotate the leg support member 80 between a stored position shown in FIG. 1 and an deployed position shown in FIG. 2, which is rotated and moved towards the front of the seat from the stored position.
The ottoman device 70 also includes an ottoman pillar 72 attached to the rear end of the ottoman pivot shaft 71 and supporting the leg support member 80 so that it can move back and forth, a pillar support member 73 attached to the bottom surface of the front frame 22 to support the ottoman pillar 72, a pillar guide 74 attached while being stored inside the pillar support member 73 and guiding the ottoman pillar 72, an ottoman locking member 75 attached to the rear surface of the front frame 22 and locks the leg support member 80 against forward and backward movement, and an ottoman operating lever 76 that is operated to release the locked state of the ottoman locking member 75.

In other words, the ottoman device 70 has the function of rotating the leg support member 80 between a stored position shown in Figure 1 in which the leg support member 80 is stored on the seat cushion 2 side to support the legs of a seated occupant, and a deployed position shown in Figures 2 and 3 in which the leg support member 80 is rotated and moved toward the front of the seat from the stored position.
In addition, the ottoman device 70 also has the function of moving back and forth between a reference position shown in Figures 1 and 2, in which the leg support member 80 is positioned on the seat cushion 2 side, and a protruding position shown in Figure 3, in which the leg support member 80 protrudes forward from the reference position to support the legs according to the physique of the seated occupant.

As shown in FIG. 2, the ottoman pivot shaft 71 is made of a pipe member with a circular cross section that extends in the seat width direction. The pipe member is surrounded by an ottoman pad 71a, and the pipe member and ottoman pad 71a are covered with a skin material 71b.
As shown in Figures 1 and 2, the ottoman pivot shaft 71 is disposed between the cushion operating lever 64 and the rail operating lever 43 in the seat width direction, and the ottoman pivot shaft 71, the cushion operating lever 64, and the rail operating lever 43 are disposed side by side in the seat width direction.
In addition, the ottoman rotation shaft 71, the cushion operating lever 64, and the rail operating lever 43 are arranged so as not to protrude forward of the seat beyond the front end of the seat cushion 2 in the seat front-rear direction.

Both ends of the ottoman pivot shaft 71 in the seat width direction pass through the leg support member 80 (leg support frame 81). In addition, the rear end of the ottoman pivot shaft 71 is provided with mounting holes 71c arranged at predetermined intervals in the seat width direction for mounting multiple ottoman pillars 72.

As shown in Figures 2, 4, and 5, the ottoman pillar 72 is a pipe member with a circular cross section for moving the leg support member 80 and the ottoman rotation shaft 71 in the fore-and-aft direction of the seat relative to the seat cushion 2, and extends in the fore-and-aft direction of the seat.
The front end of the ottoman pillar 72 is fitted into the mounting hole 71 c of the ottoman pivot shaft 71 , and the rear portion of the ottoman pillar 72 is inserted inside the pillar support member 73 .
In detail, when the leg support member 80 is in the protruding position, the rear portion of the ottoman pillar 72 is supported by the pillar support member 73, whereas when the leg support member 80 is in the standard position, the front portion of the ottoman pillar 72 is supported by the pillar support member 73 and its rear portion protrudes further rearward than the pillar support member 73.
That is, when the leg support member 80 is in the reference position, the ottoman pillar 72 and the pillar guide 74 housed in the pillar support member 73 are in contact with each other.

The pillar support members 73 are pipe members that are elongated in the front-rear direction of the seat and have a rectangular cross section, and a plurality of them are arranged at intervals in the seat width direction.
The left and right pillar support members 73 are attached to the frame side portions 22a and the frame center portion 22b of the front frame 22, while the center pillar support member 73 is attached only to the frame center portion 22b.

As shown in Figures 4 and 5, the pillar guide 74 is a hollow rod-shaped body with a rectangular cross section and is a member that supports the ottoman pillar 72 by inserting it into its internal space. The pillar guide 74 itself is attached by being inserted into the internal space of the pillar support member 73 from the front side of the seat.
More specifically, when the pillar guide 74 is stored deep within the internal space of the pillar support member 73, the front end flange 74a and the rear end flange 74b of the pillar guide 74 are in contact with the front end and rear end, respectively, of the pillar support member 73. In other words, the front end flange 74a and the rear end flange 74b sandwich the pillar support member 73 therebetween.

4 and 5, in the above-described configuration, an engagement notch (not shown) is formed in the outer peripheral surface of the ottoman pillar 72 at a portion that is inserted into the pillar guide 74. The engagement notch is detachably engaged with an engagement claw (not shown) provided on the inner peripheral surface of the pillar guide 74. A plurality of such engagement notches are formed at predetermined intervals in the front-rear direction of the seat.
Therefore, the ottoman pillar 72 can move stepwise in the fore-and-aft direction of the seat relative to the pillar support member 73 and the pillar guide 74, and the ottoman pillar 72 can be fixed at a predetermined fore-and-aft position.

In the above configuration, the ottoman pillar 72, the pillar support member 73, and the pillar guide 74 are disposed below the front frame 22, as shown in FIG.
This reduces the discomfort felt by the seat occupant when seated.

As shown in Figures 4 and 5, the ottoman locking member 75 is made of a known locking member and locks the forward and backward movement of the ottoman pillar 72. The locked state can be released by operating the ottoman operating lever 76.
Specifically, the ottoman locking member 75 normally locks the forward and backward movement of the right-side ottoman pillar 72. When the ottoman operating lever 76 is pushed in, a push-out rod (not shown) connected to the ottoman operating lever 76 acts on the ottoman locking member 75. As a result, the ottoman locking member 75 releases the locked state of the right-side ottoman pillar 72.
That is, while the ottoman operating lever 76 is being operated, the ottoman locking member 75 continues to release the locked state of the ottoman pillar 72 .

As shown in FIG. 2, the leg support member 80 is configured by placing a leg support pad 82 on a leg support frame 81 in the form of a rectangular frame serving as a skeleton, and covering the leg support pad 82 with a covering material 83 .
As shown in Figures 2 and 5, the leg support member 80 has a rear leg support portion 80a supported by the ottoman pivot shaft 71, and a front leg support portion 80b that is located further forward of the seat than the rear leg support portion 80a and is formed so as to be wider in the seat width direction than the rear leg support portion 80a.
As shown in FIG. 2, the leg support frame 81 is arranged on the sides in the seat width direction and is mainly composed of left and right leg side frames (not shown) to which the ottoman rotation shaft 71 is attached, a leg connecting frame 81a connecting the front portions of each leg side frame, and a leg connecting auxiliary frame 81b connecting the central portions of each leg side frame.

In the above-described configuration, the leg support member 80 is attached to the ottoman rotation shaft 71 via a ratchet mechanism that can be switched in rotation.
Therefore, the leg support member 80 can be rotated in stages toward the front of the seat relative to the ottoman rotation shaft 71, and the leg support member 80 can be deployed from the stored position and fixed at a predetermined rotated position.
In addition, the leg support member 80 can be rotated in stages toward the rear of the seat relative to the ottoman rotation shaft 71, and the leg support member 80 can be moved from the deployed position to a stored position and fixed at a predetermined rotated position.

<Seat storage operation>
Next, the operation of moving the seat body from the seating state to the stored state will be described with reference to Figures 10 to 12. In Figures 10 to 12, the reclining device 50 and the cushion locking device 60 are shown in a locked state when indicated by a black circle, and in an unlocked state when indicated by a white circle. The same applies to Figures 13 to 15.

10, the seat back 1 is supported by the support base 30 and locked in an upright position by the reclining device 50. The seat cushion 2 connected to the seat back 1 is supported from below by the base cover 35 (support base 30).
At this time, the base abutment portion 26b provided at the lower end of the seat cushion 2 abuts against the surface of the base cover 35 (cover protrusion portion 35a).

When the vehicle seat S is moved from the seatable state to the stowed state, the first reclining operation lever 54 (or the second reclining operation lever 55) provided on the upper surface of the seat back 1 is operated.
When the seat occupant operates the first reclining operation lever 54, the first reclining cable 56 and the first cushion cable 65 are pulled, respectively, and the reclining device 50 and the cushion locking device 60 are released from the locked state, as shown in FIG. 11 .
Then, the seat back 1 starts to rotate toward the seat front side about the back rotation shaft 52 due to the biasing force of the spiral spring 53 so as to move the seat cushion 2 to the storage floor.

As shown in FIG. 12, when the seat back 1 and the seat cushion 2 reach the storage floor, a floor contact member 28 provided on the seat cushion 2 can come into contact with the surface of the storage floor.
Furthermore, when the seat back 1 and the seat cushion 2 reach the storage floor, the operation of the first reclining operation lever 54 is terminated, whereby the seat cushion 2 is locked again by the cushion lock device 60.
The reclining device 50 has a known unlock canceller mechanism that maintains the unlocked state of the reclining device 50 when the seat back 1 is rotated forward to a predetermined angle relative to the vehicle floor. Therefore, the seat back 1 remains rotatable relative to the vehicle floor even after the operation of the first reclining operation lever 54 is completed.
Through the above series of operations, the seat body is stored in the storage floor, and the vehicle seat S is switched to the stored state.

<Sheet 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.
When the vehicle seat S is in the stowed state shown in FIG. 12, for example, the occupant manually raises the seat body upward, thereby switching the vehicle seat S to the tip-up state shown in FIG.
At this time, since the cushion lock device 60 has locked the rotational movement of the seat cushion 2, by raising the seat back 1 upward, the seat cushion 2 can also be raised upward together with the seat back 1.
In addition, when the seat is in the tip-up state, the occupant can operate the rail operating lever 43 to slide the upper rail 42 toward the rear of the seat relative to the lower rail 41, thereby ensuring even larger luggage space in front of the seat.

When the vehicle seat S is switched to the tip-up state shown in FIG. 13, the seat back 1 returns to the same position as when the seat is ready to be seated, and is locked in the upright position by the reclining device 50.

Finally, when the vehicle seat S is moved from the tip-up state to a seatable state, the cushion operating lever 64 shown in FIG. 14 is pulled, whereby the second cushion cable 66 is pulled and the locked state of the cushion locking device 60 is released as shown in FIG. 14.
When the cushion lock device 60 is released, the seat cushion 2 rotates downward relative to the seat back 1 due to the biasing force of the spiral spring 63 .
In addition, in the case where the spiral spring 63 is not required, for example, the occupant may manually rotate the seat cushion 2 downward.
Through the above series of operations, the vehicle seat S is returned to the seatable state shown in FIG.

In addition to the above switching operation, the vehicle seat S can also be moved from a seatable state to a tip-up state.
Specifically, when the seated occupant operates the cushion operating lever 64, the second cushion cable 66 is pulled, and the locked state of the cushion locking device 60 is released.
Then, by rotating the seat cushion 2 upward relative to the seat back 1 against the biasing force of the spiral spring 63, it is possible to directly move the seat cushion 2 to the tip-up state.
At this time, the locked state of the seat back 1 by the reclining device 50 is maintained.

<Other embodiments>
In the above embodiment, the storage floor is formed in front of the vehicle seat S, but this is not particularly limited, and the storage floor may be formed behind the vehicle seat S.
In this case, it is desirable that the vertical positional relationship between the seat back 1 and the seat cushion 2 be reversed when the seat body is stored on the storage floor.

In the above embodiment, the stored state of the seat body has been described as corresponding to the moving state in the claims, but without being particularly limited thereto, the tip-up state in this embodiment, etc., may of course also correspond to the moving state.
Alternatively, the state in which the seat body is moved by the rail device 40 from the normal position shown in FIG. 1 to a predetermined seat front position (predetermined seat rear position) may be regarded as the moving state.

In the above embodiment, as shown in FIG. 2, the support base 30 is fixed to the vehicle floor via a rail device 40, but this is not particularly limited and may be modified as appropriate, for example by fixing the support base 30 directly to the vehicle floor without the need for the rail device 40.
Alternatively, a support bracket (support member) (not shown) fixed onto the vehicle body floor may be used instead of the support base 30 .

In the above embodiment, as shown in FIG. 4, the reinforcing wire 29 is positioned above the ottoman pivot axis 71, but it may be positioned below the ottoman pivot axis 71 without any particular limitation.

In the above embodiment, a stowable vehicle seat for use in an automobile is described as a specific example, but the present invention is not limited to this and can be used as a vehicle seat for trains, buses, etc., as well as airplanes, ships, etc.

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 is not intended to limit the present invention. The present invention can be modified or improved without departing from the spirit of the present invention, and the present invention naturally includes equivalents thereof.

S Vehicle seat 1 Seat back 1a, 2a Cushion pad 1b, 2b Cover material 2 Seat cushion 2c Storage recess 3 Headrest 4 Armrest 5 Buckle 10 Back frame 11 Connection bracket 20 Cushion frame 21 Side frame 21a Frame side wall portion 21b Frame upper wall portion 21c Frame bottom wall portion 22 Front frame 22a Frame side portion 22b Frame central portion 23 Rear frame 24 Central frame 25 Pan frame 26 Base abutment member 26a Frame mounting portion 26b Base abutment portion 27 Lever mounting bracket 27a Upper plate portion (plate portion)
27b Lower plate portion 27c Connecting wire portion 27ca First extension portion 27cb Second extension portion 27cc Third extension portion 27d Lever attachment portion 28 Floor abutment member 29 Reinforcing wire (reinforcing member)
29a First reinforcing wire 29b Second reinforcing wire 30 Support base 31 Side base portion 32 Front base connecting portion 33 Rear base connecting portion 34 Reinforcing base portion 35 Base cover 35a Cover protrusion portion 35b Cover accommodating recess 40 Rail device 41 Lower rail 42 Upper rail 43 Rail operation lever 50 Reclining device 51 Reclining body 52 Back rotation shaft 53 Spiral spring 54 First reclining operation lever 55 Second reclining operation lever 56 First reclining cable 57 Second reclining cable 60 Cushion lock device (seat switching device)
61 Cushion lock body 62 Cushion rotation shaft 63 Spiral spring 64 Cushion operation lever (switching operation lever)
65 Cable for first cushion 66 Cable for second cushion 70 Ottoman device 71 Ottoman rotation shaft 71a Ottoman pad 71b Cover material 71c Mounting hole 72 Ottoman pillar 73 Pillar support member 74 Pillar guide 74a Front end flange 74b Rear end flange 75 Ottoman lock member 76 Ottoman operation lever 80 Leg support member 80a Rear leg support portion 80b Front leg support portion 81 Leg support frame 81a Leg connecting frame portion 81b Leg connecting auxiliary frame portion 82 Leg support pad 83 Cover material

The present invention relates to a vehicle seat.

In the case of a vehicle seat as disclosed in Patent Document 1, there has been a demand for a vehicle seat that is compact in size while improving the mounting rigidity of the ottoman device .

An object of the present invention is to provide a vehicle seat with an ottoman device that has a simple configuration and that is capable of preventing the seat from becoming large.
Another object of the present invention is to provide a vehicle seat which improves the mounting rigidity of an ottoman device while reducing the size of the seat.

The above problem is solved by a vehicle seat of the present invention, which comprises a cushion frame forming the skeleton of a seat cushion, and an ottoman device having a leg support member attached to a front portion of the cushion frame for supporting the legs of a seated occupant from below , wherein the ottoman device has an extension member that supports the leg support member so that it can move between a reference position where the leg support member is positioned on the seat cushion side and a protruding position where the leg support member protrudes toward the front of the seat from the reference position, and a support member that is attached to the front portion of the cushion frame and supports the extension member, and comprises a rail device that supports the seat cushion so that it can move in the fore-and-aft direction of the seat, and the rail device has a rail operating lever, and the support member is positioned at a position rearward of the rail operating lever .
As described above, since the support member for the ottoman device is attached to the front portion of the cushion frame and is disposed at a position rearward of the rail operating lever , the ottoman device can be easily disposed compactly in the fore-and-aft direction of the seat.
Therefore, it is possible to realize a vehicle seat with an ottoman device that has a simple configuration and prevents the seat from becoming large.

In this case, the cushion frame has left and right side frames arranged laterally in the seat width direction, and a central frame connecting the left and right side frames, and the front end of the support member and the rail operating lever are preferably arranged in a position forward of the seat than the central frame .
The ottoman device may further include an ottoman operating lever, and a front end of the support member may be disposed in front of the ottoman operating lever.
In addition, the ottoman device may have an ottoman operating lever, the leg support member may be arranged to be movable in the fore-and-aft direction of the seat, and the ottoman operating lever may be operated in a direction intersecting the movement direction of the leg support member.
In addition, a predetermined space is formed in a portion of the seat cushion forward of the support member, and the rear end portion of the leg support member is positioned in the space, and when the leg support member is in the reference position, the rear end portion of the leg support member and the rail operating lever are positioned side by side in the seat width direction.
The cushion frame may have left and right side frames disposed laterally in the seat width direction, and the rail operating lever may be attached to front end portions of the side frames via lever mounting brackets.
In addition, the extension member may be an ottoman pillar that supports the leg support member so that the leg support member can move back and forth, and the support member may be a pillar support member that is attached to a front portion of the cushion frame and supports the ottoman pillar.

According to the present invention, it is possible to realize a vehicle seat with an ottoman device that has a simple configuration and that is capable of preventing the seat from becoming large.
Furthermore, according to the present invention, the ottoman device can be arranged in a compact manner .

S Vehicle seat 1 Seat back 1a, 2a Cushion pad 1b, 2b Cover material 2 Seat cushion 2c Storage recess 3 Headrest 4 Armrest 5 Buckle 10 Back frame 11 Connection bracket 20 Cushion frame 21 Side frame 21a Frame side wall portion 21b Frame upper wall portion 21c Frame bottom wall portion 22 Front frame 22a Frame side portion 22b Frame central portion 23 Rear frame 24 Central frame 25 Pan frame 26 Base abutment member 26a Frame mounting portion 26b Base abutment portion 27 Lever mounting bracket 27a Upper plate portion (plate portion)
27b Lower plate portion 27c Connecting wire portion 27ca First extension portion 27cb Second extension portion 27cc Third extension portion 27d Lever attachment portion 28 Floor abutment member 29 Reinforcing wire (reinforcing member)
29a First reinforcing wire 29b Second reinforcing wire 30 Support base 31 Side base portion 32 Front base connecting portion 33 Rear base connecting portion 34 Reinforcing base portion 35 Base cover 35a Cover protrusion portion 35b Cover accommodating recess 40 Rail device 41 Lower rail 42 Upper rail 43 Rail operation lever 50 Reclining device 51 Reclining body 52 Back rotation shaft 53 Spiral spring 54 First reclining operation lever 55 Second reclining operation lever 56 First reclining cable 57 Second reclining cable 60 Cushion lock device (seat switching device)
61 Cushion lock body 62 Cushion rotation shaft 63 Spiral spring 64 Cushion operation lever (switching operation lever)
65 Cable for first cushion 66 Cable for second cushion 70 Ottoman device 71 Ottoman rotation shaft 71a Ottoman pad 71b Cover material 71c Mounting hole 72 Ottoman pillar (extending member)
73 Pillar support member (support member)
74 Pillar guide 74a Front end flange 74b Rear end flange 75 Ottoman lock member 76 Ottoman operation lever 80 Leg support member 80a Rear leg support portion 80b Front leg support portion 81 Leg support frame 81a Leg connecting frame portion 81b Leg connecting auxiliary frame portion 82 Leg support pad 83 Covering material

Claims (8)

A seat body having a seat back and a seat cushion,
A vehicle seat that can be switched between a seating state in which a seat occupant can sit and a moving state in which the seat body is moved from the seating state,
a seat switching device having a switching operation lever that is operated to switch the seat body between the seatable state and the movable state, the seat switching device operating in response to the operation of the switching operation lever;
an ottoman device which is rotatably attached to a front portion of the seat cushion via an ottoman rotation shaft, has a leg support member for supporting the legs of a seated occupant from below, and is capable of rotating between a stored position where the leg support member is stored in the seat cushion side and a deployed position where the leg support member is rotated and moved toward the front of the seat from the stored position;
The switching operation lever is attached to a front portion of the seat cushion,
A vehicle seat, wherein the switching operation lever and the ottoman rotation shaft are arranged side by side in a seat width direction. The vehicle seat according to claim 1, characterized in that the switching operation lever and the ottoman rotation shaft do not protrude further forward than the front end of the seat cushion in the seat front-rear direction. The vehicle seat according to claim 1 or 2, characterized in that when the leg support member moves to the deployed position, the front leg support portion located on the front side of the seat in the leg support member is formed to be wider in the seat width direction than the rear leg support portion supported by the ottoman pivot shaft. The seat switching device is a cushion lock device that rotatably connects the seat cushion to the seat back and locks a rotational movement of the seat cushion when the seat is in the seatable state,
The seat further includes a rail device that is attached to a vehicle floor, supports the seat body so as to be movable in a front-rear direction of the seat, and locks the movement of the seat body.
the rail device is attached to a front portion of the seat cushion and has a rail operation lever that is operated to release the locked state of the seat body,
the ottoman rotation shaft is disposed between the cushion operation lever and the rail operation lever as the switching operation lever in the seat width direction,
4. The vehicle seat according to claim 1, wherein the ottoman rotation shaft, the cushion operation lever, and the rail operation lever are arranged side by side in the seat width direction. A cushion frame that forms a framework of the seat cushion is provided,
The ottoman device is
an ottoman pillar that supports the leg support member so as to be movable forward and backward between a reference position where the leg support member is positioned on the seat cushion side and a protruding position where the leg support member is protruded toward a front side of the seat from the reference position;
a pillar support member attached to a front end portion of the cushion frame and supporting the ottoman pillar;
The cushion frame is
a lever mounting bracket for mounting the switching operation lever at a front end portion of the cushion frame;
The vehicle seat according to any one of claims 1 to 4, further comprising a reinforcing member that is positioned above or below the ottoman pivot axis and extends in the seat width direction to connect the pillar support member and the lever mounting bracket. The seat cushion is configured by placing a cushion pad on an upper surface of the cushion frame and covering it with a skin material,
6. The vehicle seat according to claim 5, wherein the lever mounting bracket is disposed at a position above the ottoman pivot shaft and has a plate portion for supporting the cushion pad from below. a reclining device that rotatably connects the seat back to a vehicle body floor and locks the rotational movement of the seat back when the seat is in the seatable state,
the reclining device is disposed at a lateral position of the seat back and has a reclining body that operates to lock the rotational movement of the seat back;
The vehicle seat according to any one of claims 1 to 6, characterized in that the switching operating lever and the reclining main body are positioned inward of the outer end of the seat cushion in the seat width direction, and are positioned at the same position as each other in the seat width direction. The moved state is a storage state in which the seat body is moved and stored in a storage floor that is formed at a lower position than the vehicle body floor,
a floor contact member that is elastic and is disposed at a lower end portion of the seat cushion so as to contact the storage floor when the seat body is moved to the stored state;
A vehicle seat as described in any one of claims 1 to 7, characterized in that the switching operating lever and the floor abutment member are positioned inside the outer end of the seat cushion in the seat width direction, and are positioned at the same position as each other in the seat width direction.

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