JP2020011549A - Vehicle seat - Google Patents

Abstract

To improve rigidity of a support member which supports a storage part for storing articles such as luggage and support the storage part stably.SOLUTION: A vehicle seat includes: a seat body Sh including a seat back 1 and a seat cushion 2; a storage part 60 which is provided below the seat cushion 2 and can store articles; a pair of base members 40A, 40B supporting the seat body Sh; and a connection member 43 connecting the pair of base members 40A, 40B. The storage part 60 is supported by the connection member 43. The connection member 43 includes a reinforcement part 43c between one end part 43a and the other end part 43b of the connection member 43.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a vehicle seat, and more particularly, to a vehicle seat provided with a storage portion capable of storing articles such as luggage.

  Vehicles such as automobiles have a limited interior space, which limits the storage of luggage. Therefore, there is known a technology in which a space below a seat and a space below a seat cushion is used for storing luggage in an automobile.

  For example, Patent Literature 1 relates to a vehicle seat structure, in which a cushion body of a seat cushion is mounted on a cushion frame so as to be rotatable forward, and a storage container as a storage portion is provided in a lower space portion of the cushion body. Is described as being detachably mounted.

JP-A-7-40784

  In the vehicle seat of Patent Document 1, a pair of slide rails are connected by a front pipe and a rear pipe in the seat width direction, and the storage container is supported by the front pipe as a support member. It is required to improve the rigidity of the support member that supports the housing section.

  The present invention has been made in view of the above problems, and an object of the present invention is to improve the rigidity of a support member that supports a storage unit for storing articles such as luggage and stably support the storage unit. It is an object of the present invention to provide a vehicular seat that can be used.

  According to the vehicle seat of the present invention, the object is to provide a seat main body including a seat back and a seat cushion, a storage portion provided below the seat cushion and capable of storing articles, and a pair of supporting members for supporting the seat main body. A base member, and a connecting member for connecting the pair of base members, wherein the housing portion is supported by the connecting member, and the connecting member includes one end and the other end of the connecting member. The problem is solved by providing a reinforcing portion between them.

  In the vehicle seat of the present invention configured as described above, the connecting member, which is a support member for supporting the housing portion, includes a reinforcing portion between one end and the other end thereof, and the rigidity is improved. Therefore, it is possible to stably support the storage unit.

In the vehicle seat described above, the reinforcing portion may be a bent portion that is bent so as to protrude forward from the vehicle seat.
In the above configuration, the area of the housing portion can be expanded with a simple configuration while improving the rigidity of the connecting member by the bent portion that is bent so as to protrude forward of the vehicle seat.

In the vehicle seat described above, the housing portion is formed at a portion supported by the connection member, and is formed with a protrusion that projects upward and has a space therein, and the bent portion of the connection member is The space may support the housing.
In the above configuration, since the bent portion of the connection member supports the storage portion in the space inside the protrusion formed in the storage portion, it is possible to suppress the displacement of the connection member with respect to the storage portion. Becomes

In the above-described vehicle seat, the vehicle seat further includes a reclining device that rotatably supports the seat back, and the reclining device is disposed at the same height position as the connecting member in a vertical direction of the vehicle seat. Good.
In the above configuration, the reclining device is disposed at the same height position as the connecting member in the seat vertical direction. By setting the height position of the reclining device in consideration of the height position of the connecting member as described above, it is possible to further reduce the size of the vehicle seat including the reclining device in the seat vertical direction.

In the above vehicle seat, the connection member is a first connection member, and includes a second connection member that connects the pair of base members on a rear side of the vehicle seat with respect to the first connection member. It is preferable that the first connection member and the second connection member are connected by a connection member.
In the above configuration, since the first connecting member is connected to the second connecting member behind the vehicle seat by the connecting member, the rigidity of the first connecting member can be further improved.

In the above vehicle seat, the pair of base members include a lower rail and an upper rail slidable with respect to the lower rail, and the pair of base members slide the main body of the vehicle along the front-rear direction of the vehicle seat. And a base bracket attached to the upper rail, wherein the base bracket has a flange, and the connecting member is preferably supported by the flange.
In the above configuration, since the connecting member is supported by the base bracket having the flange, the supporting rigidity of the connecting member can be improved.

In the vehicle seat described above, it is preferable that the connection member is disposed at the same height position as the upper rail in a vertical direction of the vehicle seat.
In the above configuration, the connection member is disposed at the same height position as the upper rail in the seat vertical direction. By setting the height position of the connection member in consideration of the height position of the upper rail as described above, it is possible to further reduce the size of the vehicle seat provided with the connection member in the seat vertical direction.

In the above vehicle seat, the base bracket may include a closed cross section, and the connecting member may be connected to the base bracket avoiding the closed cross section.
In the above configuration, by providing the base bracket with the closed cross section, the rigidity of the support base can be improved, and the obstruction of the attachment of the connecting member can be suppressed.

ADVANTAGE OF THE INVENTION According to the vehicle seat of this invention, since the connection member which is the support member which supports an accommodation part is provided with the reinforcement part between the one end part and the other end part, since rigidity is improving, the accommodation part Can be stably supported.
Further, according to the vehicle seat of the present invention, the area of the accommodation portion can be enlarged with a simple configuration while improving the rigidity of the connecting member by the bent portion bent so as to protrude forward of the vehicle seat. Becomes possible.
According to the vehicle seat of the present invention, since the bent portion of the connecting member supports the housing portion in the space inside the protruding portion formed in the housing portion, the position of the connecting member with respect to the housing portion is reduced. The displacement can be suppressed.
Further, according to the vehicle seat of the present invention, the size of the vehicle seat provided with the reclining device in the seat vertical direction can be further reduced.
According to the vehicle seat of the present invention, since the first connecting member is connected to the second connecting member behind the vehicle seat by the connecting member, the rigidity of the first connecting member is further improved. Becomes possible.
Further, according to the vehicle seat of the present invention, since the connecting member is supported by the base bracket having the flange, the supporting rigidity of the connecting member can be improved.
Further, according to the vehicle seat of the present invention, it is possible to further reduce the size of the vehicle seat provided with the connection member in the seat vertical direction.
Further, according to the vehicle seat of the present invention, by providing the base bracket with the closed cross-section, it is possible to improve the rigidity of the support base and suppress the obstruction of the attachment property of the connecting member.

1 is a perspective view of a vehicle seat according to one embodiment of the present invention. It is a side view of a vehicle seat when a seat state is a seating state. FIG. 4 is a side view of the vehicle seat when the seat state is a stored state. It is a side view of a vehicle seat when a seat state is a tip-up state. It is a perspective view of a vehicle seat when a seat state is a tip-up state. It is a perspective view of the seat frame which the vehicle seat concerning one embodiment of the present invention has. It is a figure showing the cushion lock device with which the vehicle seat concerning one embodiment of the present invention is provided. It is AA sectional drawing of FIG. It is a figure which shows the lower part of the seat frame which a vehicle seat has, and its peripheral equipment. FIG. 10 is a cross-sectional view taken along the line BB of FIG. 9, and is an explanatory view showing a mounting structure of a vehicle seat reclining device according to an embodiment of the present invention. It is CC sectional drawing of FIG. 9, and is explanatory drawing which shows the structure of the 1st base bracket and the slide rail of the vehicle seat which concerns on one Embodiment of this invention. It is DD sectional drawing of FIG. 9, and is explanatory drawing which shows the structure of the 2nd base bracket and slide rail of the vehicle seat which concerns on one Embodiment of this invention. It is a perspective view of the base cover which the vehicle seat concerning one embodiment of the present invention has. It is a perspective view in the state where a base cover was separated into a front cover and a rear cover. It is EE sectional drawing of FIG. It is a figure which shows the lower part of the seat frame which the vehicle seat which concerns on a modification, and its peripheral device. It is a perspective view of the vehicle seat concerning a modification. It is a perspective view when the seat state of the vehicle seat which concerns on a modification is a tip-up state. It is a figure which shows the lower part of the seat frame of the vehicle seat which concerns on a modification, and its peripheral device. It is a figure which shows the lower part of the seat frame of the vehicle seat which concerns on a modification, and its peripheral device. It is a figure which shows the lower part of the seat frame of the vehicle seat which concerns on a modification, and its peripheral device. It is explanatory drawing which shows the attachment structure of the reclining apparatus of the vehicle seat which concerns on a modification. It is explanatory drawing which shows the attachment structure of the reclining apparatus of the vehicle seat which concerns on a modification.

Hereinafter, a configuration of a vehicle seat according to an embodiment of the present invention will be described with reference to the drawings. However, the embodiments described below are intended to facilitate understanding of the present invention, and do not limit the present invention. That is, the present invention can be changed and improved without departing from the spirit thereof, and the present invention naturally includes equivalents thereof.
Further, in the following description, the contents relating to the material, shape and size of the seat component are merely one of specific examples, and do not limit the present invention.

  Hereinafter, a vehicle seat mounted on a vehicle will be described as an example of a vehicle seat, and a configuration example thereof will be described. However, the present invention is not limited to vehicle seats mounted on vehicles such as automobiles and railroads that have wheels, for example, seats mounted on aircraft or ships that move other than on the ground. Can be applied.

  In the following description, the “front-rear direction” is the front-rear direction of the vehicle seat (in other words, the front-rear direction of the seat body), and is the direction that matches the traveling direction of the vehicle when traveling. The “seat width direction” is the width direction of the vehicle seat (in other words, the width direction of the seat body), and is a direction that coincides with the left-right direction viewed from the occupant sitting on the vehicle seat. The “vertical direction” is the vertical direction of the vehicle seat, and is the direction that coincides with the vertical direction when the vehicle is traveling on a horizontal plane.

Further, “outside the vehicle” in the seat width direction means a side closer to the outside of the vehicle body (for simplicity, the side closer to the nearest door), and “inside the vehicle” means a side closer to the inside of the vehicle body (understandably). Easily means the side away from the nearest door).
In the following description, “rotation” means a rotation operation about an axis along the sheet width direction unless otherwise specified.

  The shape, position, posture, and the like of each part of the seat described below will be described on the assumption that the vehicle seat is in a seated state described later, unless otherwise specified.

<Basic configuration of vehicle seat according to this embodiment>
The basic configuration of the vehicle seat (hereinafter, vehicle seat S) according to the present embodiment will be described with reference to FIG. FIG. 1 is a perspective view of the vehicle seat S.

  The vehicle seat S is a seat that is placed on a vehicle body floor and on which a vehicle occupant sits. In the present embodiment, the vehicle seat S is used as a rear seat corresponding to a rear seat of the vehicle. However, the present invention is not limited to this, and the vehicle seat S can also be used as a second-row middle seat or a third-row rear seat in a vehicle having three rows of seats in the front-rear direction.

  As shown in FIG. 1, the vehicle seat S has a seat body Sh that forms a main body thereof. The seat body Sh includes a seat back 1, a seat cushion 2, and a headrest 3, as shown in FIG. The seat back 1 is rotatably attached to a vehicle body floor via a support base 40 described later.

  The seat cushion 2 has a rear end connected to a lower end of the seat back 1. A connecting member 5 is interposed between the rear end of the seat cushion 2 and the lower end of the seat back 1 as shown in FIG. The connecting member 5 is attached to the seat back 1 so as to be rotatable. Thereby, the seat cushion 2 can rotate with respect to the seat back 1 together with the connecting member 5.

  Further, a slide rail mechanism 4 described below is installed below the seat body Sh. By the slide rail mechanism 4, the seat body Sh is mounted on the vehicle body floor in a state of being slidable in the front-rear direction.

  The seat body Sh can be stored in a folded state on a storage floor F formed in front thereof. The storage floor F is formed by recessing a part of the vehicle body floor (specifically, a part located in front of the seat body Sh when the seat body Sh is in the seated state in the body floor). It is a concave space.

<Regarding changes in the state of the seat body>
In the present embodiment, the state of the seat body Sh (hereinafter, the sheet state) can be changed. Hereinafter, changes in the seat state will be described with reference to FIGS. 2 to 5. 2 to 4 are side views of the vehicle seat S, FIG. 2 is a view when the seat state is a seated state, FIG. 3 is a view when the seat state is a stored state, and FIG. FIG. 11 is a diagram when the sheet state is a chip-up state. FIG. 5 is a perspective view of the vehicle seat S when the seat state is the tip-up state.

  In the present embodiment, the seat state can be switched between a seated state shown in FIG. 2, a stored state shown in FIG. 3, and a tip-up state shown in FIGS.

(Seated state)
The seating state illustrated in FIG. 2 is a state in which the seat back 1 stands up on the vehicle body floor and the occupant, who is a seated person, can be seated on the seat cushion 2. When the seat is in a seatable state, as shown in FIGS. 1 and 2, the seatback 1 is slightly inclined backward, and the seat cushion 2 has a seating surface (an occupant's buttocks and thighs). (The surface on which it rests) faces upward.

(Storage state)
The storage state illustrated in FIG. 3 is a state where the sheet main body Sh is stored in the storage floor F in a folded state. When the seat body Sh shifts to the stowed state, the seat back 1 falls forward with respect to the vehicle body floor, and the seat cushion 2 rotates in a direction approaching the seat back 1. Then, when the seat state is the storage state, as shown in FIG. 3, the rear surface (back surface) of the seat back 1 has the same height (level) as the periphery of the storage floor F in the vehicle body floor, and the seat cushion 2 becomes the seat back. 1 and the vehicle body floor.

(Chip up state)
The tip-up state is a state in which the seat back 1 stands up with respect to the vehicle body floor while the seat cushion 2 jumps up toward the seat back 1 as shown in FIGS.

  Further, the vehicle seat S according to the present embodiment is provided with a lock device for locking the seat state in a tip-up state. The vehicle seat S according to the present embodiment includes a cushion lock device 25 that locks the seat cushion 2 when the seat is in a seating state and a tip-up state, as described later.

  Next, the movement of each part of the seat body Sh when switching the seat state will be roughly described. When the seat is in a seated state, the seat back 1 is in an upright posture with respect to the vehicle body floor, and the seat cushion 2 is in a substantially horizontal posture with respect to the vehicle body floor. When the seat is in the seated state, the seat cushion 2 is held by the cushion lock device 25 in a seatable state. Here, when the reclining operation lever (not shown) is operated, the lock of the reclining device 13 is released, and at the same time, the lock of the cushion lock device 25 is also released by the cable (not shown) (the first engaging hole of the lock piece 28). The engagement with the seat back 2 is released, and the seat back 1 can be rotated and the relative rotation of the seat cushion 2 with respect to the seat back 1 can be allowed. By rotating the seat back 1 within a predetermined range with the cushion lock device 25 unlocked, the occupant can adjust the position of the seat back 1 to a desired position.

  When switching the seat state from the seated state (FIG. 2) to the stowable state (FIG. 3), first, as described above, the lock of the cushion lock device 25 is released, so that the seat back 1 is moved from an urging member (not shown). It rotates with respect to the vehicle body floor so as to fall forward by the urging force. In addition, the seat cushion 2 rotates forward with the connecting member 5 in a direction approaching the seat back 1 while moving forward with the forward tilting operation of the seat back 1. At this time, the lower surface of the connecting member 5 of the seat body Sh slides on a predetermined portion of the base cover 60 disposed below the seat body Sh. As a result, the seat cushion 2 smoothly moves forward, and eventually enters the storage floor F.

  Thereafter, the seat back 1 enters the storage floor F by the further forward tilting operation of the seat back 1, and the seat cushion 2 moves forward along the bottom surface of the storage floor F. Finally, when the seat back 1 is folded on the seat cushion 2 in the storage floor F, the seat state reaches the storage state (FIG. 3).

  When switching the seat state from the stored state (FIG. 3) to the tip-up state, the occupant manually raises the seat body Sh stored on the storage floor F upward. At this time, the seat cushion 2 is in a posture folded with respect to the seat back 1 (that is, a posture in which the seat cushion 2 jumps up with respect to the seat back 1). Therefore, by raising the seat body Sh until the seat back 1 reaches the standing position (that is, the position of the seat back 1 when the seat is in the seated state), the seat state is switched to the tip-up state (FIG. 4). become. When the seat state is switched to the tip-up state, the seat back 1 is locked in an upright posture with respect to the vehicle body floor.

  When switching the seat state from the tip-up state to the sitting state, the occupant performs an operation for releasing the lock of the seat cushion 2. In the present embodiment, the lock of the seat cushion 2 is released by operating the damper 26 shown in FIG. 5 provided on the back surface of the seat cushion 2. When the lock is released, the seat cushion 2 rotates together with the connecting member 5 in a direction away from the seat back 1 by an urging force from an urging member (not shown). Then, when the seat cushion 2 reaches the seatable position (that is, the position of the seat cushion 2 when the seat state is the seated state), the seat state is switched to the seatable position.

<Configuration of each part of the seat>
Hereinafter, the configuration of each part of the vehicle seat S will be described with reference to FIGS. FIG. 6 is a perspective view of a seat frame forming a skeleton of the vehicle seat S. FIG. 7 is a diagram showing a cushion lock device. FIG. 8 is a cross-sectional view taken along the line AA of FIG. 6, and FIG. 10 is a sectional view taken along the line BB of FIG. 9, and FIGS. 11 and 12 are sectional views taken along the lines CC and DD of FIG. 13 and 14 are perspective views of the base cover. FIG. 15 is a sectional view taken along line EE of FIG.

  The vehicle seat S includes a seat body Sh, as shown in FIG. 1 and the like. The seat body Sh includes a seat back 1 and a seat cushion 2. Each of the seat back 1 and the seat cushion 2 includes a frame illustrated in FIG. 6 (specifically, the seat back frame 10 and the seat cushion frame 20).

  The seat back 1 and the seat cushion 2 are connected by a connecting member 5. The connecting member 5 is a substantially L-shaped member as viewed from the side, and extends in the seat front-rear direction. The connecting member 5 also has a function as a side frame of the seat cushion 2. The connecting member 5 is formed by processing a metal plate, and connects the seat back frame 10 and the seat cushion frame 20 at an end of the seat body Sh in the seat width direction. The rear end of the connecting member 5 is rotatably attached to the seat back frame 10. That is, the seat cushion 2 rotates together with the connecting member 5 with respect to the seat back 1 as the rear end of the connecting member 5 rotates with respect to the seat back frame 10.

  A cushion lock device 25 as a lock device is attached to the rear end of the connecting member 5. The cushion lock device 25 is disposed at a position sandwiched between the connecting member 5 and a side end of the seat back frame 10 in the seat width direction. The cushion lock device 25 locks the seat cushion 2 at the current position when the seat is in the seated state. Further, when the seat state is the tip-up state, the cushion lock device 25 locks the seat cushion 2 at the position at that time. As described in detail below, the cushion lock device 25 can switch its state between a locked state and an unlocked state.

  The configuration of the seat body Sh will be described in more detail. As shown in FIG. 5, a damper 26 is provided on the back surface of the seat cushion 2 of this embodiment (the lower surface of the seat cushion 2 when the seat is in a seated state). Have been. The damper 26 is a convex protrusion protruding downward from the back surface of the seat cushion 2 (the side opposite to the side where the seating surface is located in the thickness direction of the seat cushion 2). The damper 26 has an oval shape when viewed from the front, and protrudes from the central portion in the seat width direction of the front end region on the back surface of the seat cushion 2 as shown in FIG.

  Further, when the seat is in the housed state, the damper 26 abuts on the vehicle body floor at its tip (lower end). Thus, it is possible to prevent the rear surface of the seat cushion 2 from coming into contact with the vehicle body floor and being stained while the seat is in the housed state.

  The damper 26 is operated when switching the seat state from the tip-up state to the sitting state. More specifically, a slit 2a extending from the center of the seat cushion 2 toward the outside of the vehicle along the width direction of the seat is provided in the front end region of the back surface of the seat cushion 2. In the present embodiment, the damper 26 can slide within the slit 2a along the sheet width direction. The damper 26 is connected to the cushion lock device 25 via a cable (not shown).

  More specifically, as shown in FIG. 7, the damper 26 is connected to the cushion lock device 25 via a cable 27. In this configuration, of the cushion lock device 25, the lock piece 28 attached to the connecting member 5 is engaged with the engagement hole (specifically, the first engagement hole 29 a and the first engagement hole 29 a) of the engagement member 29 attached to the seat back 1. 2), the seat cushion 2 is locked at the position at that time. When the seat is in the seated state, the lock piece 28 is engaged with the first engagement hole 29a. When the seat is in the tip-up state, the lock piece 28 is engaged with the second engagement hole 29b. Have been combined.

  More specifically, when the seat state is the tip-up state, the damper 26 is moved to one end position of the sliding movement range (specifically, the center portion of the seat cushion 2 in the seat width direction in the formation range of the slit 2a). (A position corresponding to), the lock piece 28 is engaged with the second engagement hole 29b, the seat cushion 2 is locked, and the seat state is locked in the tip-up state.

  Further, when the seat state is the tip-up state, the occupant moves the damper 26 to the other end position of the sliding range (specifically, the end position of the slit 2a forming area located outside the vehicle in the seat width direction). , The cable 27 connected to the damper 26 is pulled, and the cushion lock device 25 performs an unlocking operation. As a result, as a result, the lock piece 28 comes off from the engagement hole, and the lock in the seat state (strictly, the lock of the seat cushion 2) is released.

  The components operated to release the lock of the seat cushion 2 are not limited to the damper 26. However, if the damper 26 is used as an operation component for unlocking, the seat state can be changed to the seating state or the seat state. The vehicle seat S configured to lock or unlock in the tip-up state can be configured with a smaller number of components.

  As shown in FIG. 5, a receiving portion 14 is provided on the lower surface of the seat cushion 2. The receiving portion 14 is a portion that comes into contact with the top 61a of the first raised portion 61 in the seated state. 8, the receiving portion 14 is supported by a front pipe member 15a and a rear pipe member 15b that connect the connecting member 5 as a side frame of the seat cushion 2. As shown in FIG. I have. Here, the receiving portion 14 is composed of a main body portion 14a formed of a metal such as iron and a cover member 14b formed of resin, and a convex portion of the cover member 14b is engaged with a concave portion of the main body portion 14a. Are fixed together. As shown in FIG. 8, a pipe member 15c disposed between a front pipe member 15a and a rear pipe member 15b in the seat front-rear direction is inserted through the main body part 14a of the receiving part 14.

  When the vehicle seat S is in the seated state (FIG. 2), the lower surface (specifically, the lower surface of the seat cushion 2) of the vehicle seat S is moved by an urging member 110 (for example, a torsion spring) provided in the urging device 100 shown in FIG. , The receiving portion 14 and the lower surface of the connecting member 5 on the vehicle inner side) are the first raised portion 61 and the second raised portion 62 of the base cover 60 which is a cushion support member (more specifically, the top portion 61a of the first raised portion 61 and An urging force (pressing force) is generated that urges the second protrusion 62 in the direction in which it contacts the top 62a).

  The vehicle seat S has a buckle 6 for wearing a seat belt as a peripheral device of the seat body Sh. As shown in FIGS. 1 and 6, the buckle 6 is arranged at a side position of the seat body Sh, and more specifically, at a position adjacent to the seat body Sh inside the vehicle in the seat width direction. In the present embodiment, the buckle 6 has a support bracket 6a for supporting a main body portion (a portion to be connected to the tongue of the seat belt), and the support bracket 6a is provided so as to be rotatable with respect to the vehicle body floor. Have been. That is, the buckle 6 of the present embodiment is configured to be able to lean forward with respect to the vehicle body floor by rotating the support bracket 6a. When the seat state shifts to the stowed state, the buckle 6 is pushed from behind by the side end of the seat back 1 and falls forward with the seat back 1.

  The vehicle seat S has a slide rail mechanism 4 shown in FIGS. 6 and 9 to 12 as peripheral devices of the seat body Sh. The slide rail mechanism 4 is a device for slidingly moving the seat body Sh in the front-rear direction, and has a known structure (structure of a general slide rail mechanism). That is, the slide rail mechanism 4 includes a pair of a lower rail 4a fixed on the vehicle body floor and an upper rail 4b slidable with respect to the lower rail 4a. The seat body Sh is attached to the upper rail 4b, and moves back and forth with the sliding movement of the upper rail 4b.

  The upper rail 4b is normally locked so as not to be slidable, and is unlocked and slidable when the occupant performs a predetermined operation. More specifically, in the present embodiment, the operation strap 7 shown in FIG. 1 is provided as an operation member operated to release the lock of the upper rail 4b. The operation strap 7 is a belt-like member formed in an endless shape, and is located below the seat cushion 2 when the seat is in a seated state, as shown in FIG. In the present embodiment, the operation strap 7 is provided at the outer end of the vehicle seat S in the width direction of the vehicle. Accordingly, it is possible to release the lock of the upper rail 4b by operating the operation strap 7 from the outside of the vehicle with the door opened.

  The operation strap 7 is connected to a slide lock mechanism via a cable (not shown). Regarding the slide lock mechanism, a general device for locking the upper rail 4b can be used, so that the description and illustration are omitted. When the operation strap 7 is pulled forward, the cable is pulled, so that the slide lock mechanism operates to release the lock of the upper rail 4b.

(Support base 40)
The vehicle seat S has a support base 40 shown in FIGS. 6 and 9. The support base 40 is disposed immediately above the slide rail mechanism 4 and supports the seat body Sh (the seat back 1 and the seat cushion 2). The support base 40 includes a pair of left and right base brackets (a first base bracket 41 and a second base bracket 42) provided at positions separated from each other in the seat width direction, and a first base bracket 41 and a second base bracket 42. A front connecting member 43 connects the front portions to each other, and a rear connecting member 44 connects the front and rear portions of the first base bracket 41 and the second base bracket 42 to each other in the front-rear direction.

  The first base bracket 41 and the second base bracket 42 are sheet metal members extending long in the front-rear direction, and include flanges 41a and 42a extending inward in the sheet width direction. The first base bracket 41 is bolted to the upper surface of the upper rail 4b at the flange 41a, and the second base bracket 42 is bolted to the upper surface of the upper rail 4b at the flange 42a. Therefore, when the upper rail 4b slides, the support base 40 including the base brackets 41 and 42 moves back and forth integrally with the upper rail 4b.

  Further, the first base bracket 41 includes a top portion 41b in which a side wall of the first base bracket 41 is protruded in a mountain shape at a center portion in the front-rear direction, and the second base bracket 42 is provided at a center portion in the front-rear direction. The side wall of the second base bracket 42 is provided with a top portion 42b that protrudes in a mountain shape. The lower ends of the first connection link 11a and the second connection link 11b are rotatably attached to the top 41b of the first base bracket 41 and the top 42b of the second base bracket 42, respectively.

  The connection link 11 is a link member bent in a substantially arcuate shape, and is provided between the lower end of the seat back frame 10 and the first base bracket 41 and between the lower end of the seat back frame 10 and the second base bracket 42. Each is interposed. That is, the seat body Sh (strictly, the seat back 1) is fixed to the upper rail 4 b of the slide rail mechanism 4 via the connection link 11 and the support base 40.

  Further, one (two in total) connecting links 11 are provided at both ends in the sheet width direction of the sheet body Sh. The lower end of the first connecting link 11a is rotatably supported by the top 41b at the center in the front-rear direction of the first base bracket 41 located on the same side as the first connecting link 11a in the seat width direction. I have. The lower end of the second connecting link 11b is rotatably supported by the top 42b at the center in the front-rear direction of the second base bracket 42 located on the same side as the second connecting link 11b in the seat width direction. I have. As a result, the connection links 11 (the first connection link 11a and the second connection link 11b) rotate forward with respect to the first base bracket 41 and the second base bracket 42 of the support base 40. Accordingly, the seat back 1 falls forward.

  The reclining device 13 is attached to the lower end of the first connection link 11a on the first base bracket 41 side. The reclining device 13 is disposed between the first connection link 11a and the first base bracket 41 in the seat width direction. The reclining device 13 has a known structure (a structure of a general reclining device), and its state can be switched between a locked state and an unlocked state. When the reclining device 13 is in the locked state, the first connection link 11a is in a non-rotatable state, so that the seat back 1 is locked in the posture at that time. On the other hand, when the reclining device 13 is in the unlocked state, the first connecting link 11a is in a rotatable state with respect to the first base bracket 41, and as a result, the seat back 1 can be freely rotated. .

  Here, a pair of left and right first base brackets 41 and a second base bracket 42 of the support base 40 and a pair of left and right slide rails (slide rail mechanism 4) corresponding to each are collectively referred to as base members. Specifically, as shown in FIGS. 6 and 10 to 12, the first base bracket 41 and the corresponding slide rail 4 are referred to as a first base member 40A, and the second base bracket 42 and the corresponding slide rail 4 are referred to as a first base member 40A. This is referred to as a second base member 40B.

(Connecting member)
As shown in FIGS. 6 and 9, a pair of slide rails of the slide rail mechanism 4 are connected by a front connection member 43. The front connecting member 43 has two bent portions 43c between a first end 43a (one end) and a second end 43b (other end). Further, as shown in FIG. 9, between the two bent portions 43c, the front connecting member 43 is bent so as to protrude forward.

  As described above, the front connecting member 43 has the bent portion 43c as a reinforcing portion between the first end 43a and the second end 43b, and has improved rigidity. Part) can be stably supported.

  The first end 43a of the front connection member 43 is supported by a flange 41a extending in the seat inward direction of the first base bracket 41, and the second end 43b of the front connection member 43 is connected to the second base bracket 42. Is supported by a flange 42a extending in the sheet inner direction. Since both ends of the front connecting member 43 are supported by the flanges 41a and 42a having high rigidity, the supporting rigidity is improved. In addition, since the pair of slide rails of the slide rail mechanism 4 are connected by the front connecting member 43, the pair of slide rails are prevented from being displaced from each other in the seat front-back direction.

  A rear connecting member 44 (second connecting member) connects the pair of slide rails of the slide rail mechanism 4 behind the front connecting member 43. As shown in FIG. 8, the front connecting member 43 and the rear connecting member 44 are connected by a connecting member 45 extending in the seat front-back direction. Since the front connecting member 43 is connected to the rear connecting member 44 and the connecting member 45 in the front-rear direction, the rigidity of the front connecting member 43 is improved.

  The connection member 45 is arranged at the same height position as the upper rail 4b in the vertical direction. By setting the height position of the connecting member 45 in consideration of the height position of the upper rail 4b, the size of the vehicle seat S in the vertical direction is reduced.

  Further, the reclining device 13 is disposed at the same height position as the front connecting member 43 and the rear connecting member 44 in the vertical direction. By setting the height position of the reclining device 13 in consideration of the height positions of the front connection member 43 and the rear connection member 44, the size of the vehicle seat S in the vertical direction is reduced.

  10, the reclining device 13 is attached to the outer side surface of the first base bracket 41 using two plate members 13a and 13b, as shown in FIG.

  11 and 12, the front connecting member 43 avoids the closed cross-section 41c of the first base bracket 41 and the closed cross-section 42c of the second base bracket 42 (in other words, as shown in the cross-sectional views of FIGS. 11 and 12). Then, at portions other than the closed cross-section), they are connected to the first base bracket 41 and the second base bracket 42. Specifically, as shown in FIGS. 11 and 12, the first base bracket 41 and the second base bracket 42 have a closed cross section when cut along a vertical plane including the seat vertical direction and the seat width direction, respectively. Closed cross-sections 41c and 42c. The front connecting member 43 is connected to the first base bracket 41 and the second base bracket 42 so as to avoid the closed cross-sections 41c and 42c in the seat front-rear direction. By providing the closed cross-sections 41c and 42c on the first base bracket 41 and the second base bracket 42, the rigidity of the support base 40 is improved, and the attachment properties of the front connecting member 43 and the rear connecting member 44 are maintained. .

  As shown in FIG. 9, the AA cross-sectional view of FIG. 11 and the BB cross-sectional view of FIG. 12 are the same vertical plane in the front-back direction of the seat. As can be seen by comparing FIGS. 11 and 12, the closed section 41c of the first base bracket 41 on the side where the reclining device 13 is provided is larger than the closed section 42c of the second base bracket 42. ing. In other words, in the seat width direction, the width LA of the closed section 41c of the first base bracket 41 is larger than the width LB of the closed section 42c of the second base bracket 42 (LA> LB). Therefore, the strength of the first base bracket 41 on the same vertical plane in the seat front-rear direction is higher than the strength of the second base bracket 42.

  As can be seen by comparing FIGS. 11 and 12, the first base bracket 41 (top 41b and closed cross section 41c) on the side where the reclining device 13 is provided is connected to the second base bracket 42 (top 42b and closed cross section). 42c), the slide rails (the lower rail 4a and the upper rail 4b) are arranged to be offset to the outside in the sheet width direction with respect to the center in the sheet width direction.

  As can be seen from FIGS. 9, 11 and 12, the width of the flange 41a is larger than the width of the flange 42a in the sheet width direction (in other words, the flange 41a is larger than the flange 42a in the sheet width). The length extending inward is longer). Therefore, the first end 43a of the front connecting member 43 has higher supporting rigidity than the second end 43b.

(Base cover 60)
The base cover 60 is a resin molded product that covers the entire support base 40 and the slide rail mechanism 4 from above. In the present embodiment, the base cover 60 has a function of guiding the movement of the seat cushion 2 when switching the seat state, in addition to a function of covering the support base 40 and the slide rail mechanism 4. Further, as described later, the base cover 60 includes a luggage accommodation recess 65 for accommodating an article such as luggage, and corresponds to the accommodation section in the present embodiment.

  The base cover 60 has the outer shape shown in FIGS. 5 and 13 and is placed on the vehicle body floor. The base cover 60 swells upward as a whole, and has a space inside the base cover 60 sufficient to accommodate the support base 40 and the slide rail mechanism 4. As shown in FIGS. 13 and 14, the base cover 60 of the present embodiment is divided into a front cover 60a and a rear cover 60b. The front cover 60a is divided into two parts, left and right, and is configured by combining two pieces (piece-shaped pieces constituting the front cover 60a). However, the present invention is not limited to this, and the front cover 60a may be composed of only one component (one piece), and the base cover 60 may be composed of only one component (one piece). .

  As shown in FIG. 5 and FIG. 13, a first raised portion 61 and a second raised portion 62 that are raised upward from other portions are formed at both ends in the sheet width direction of the base cover 60. I have. The first raised portion 61 has a top portion 61 a at a position corresponding to the top portion 41 b of the first base bracket 41, and the second raised portion 62 has a top portion at a position corresponding to the top portion 42 b of the second base bracket 42. 62a. The second raised portion 62 constitutes a guide portion, and is provided so as to extend from the front end to the rear end of the base cover 60 along the front-rear direction. At both ends in the front-rear direction of the base cover 60, a front protruding portion 63 and a rear protruding portion 64 protruding upward from other portions are formed.

  As shown in FIGS. 2 to 5, the second raised portion 62 has a substantially mountain shape when viewed from the side, and its upper end surface is a plane curved so as to form an arc protruding upward. . The front end surface of the second raised portion 62 is an inclined surface as shown in FIGS. 2 to 5, and the storage floor F is arranged on an extension of the inclined surface. Further, the second raised portion 62 has a slight spread (lateral width) in the sheet width direction.

  The second raised portion 62 configured as described above guides the movement of the seat back 1 and the seat cushion 2 by slidingly contacting a part of the seat body Sh when the seat state shifts to the storage state. More specifically, when the seat state shifts to the storage state, if the seat back 1 falls forward, the seat cushion 2 moves forward toward the storage floor F with this. At this time, the lower surface of the connecting member 5 slides (specifically, slides) on the front end surface of the second raised portion 62 inclined toward the storage floor F. Thereby, the seat cushion 2 is guided by the second raised portion 62 and smoothly moves to the storage floor F.

  Further, a portion of the base cover 60 that is located between the first raised portion 61 and the second raised portion 62 in the sheet width direction and located between the front protruding portion 63 and the rear protruding portion 64 in the front-rear direction. As shown in FIG. 5, the first protrusion 61 and the second protrusion 62 are recessed (recessed) to form a recessed space. This space constitutes a luggage accommodation recess 65. Thus, for example, while the seat is in the seated state or the tip-up state, the luggage having a slight height is placed in the space (in the luggage receiving recess 65) located below the seat cushion 2. It is possible. The front connecting member 43 has a bent portion 43c bent so as to protrude to the front side of the vehicle seat S, has improved rigidity, and has a simple configuration and can serve as a luggage accommodating area. The accommodation recess 65 is enlarged.

  As shown in FIG. 14, the base cover 60 has an engaging recess 66a formed in a rear protruding portion 64 which is a rear end of the front cover 60a, and an engaging convex portion formed in a front end of the rear cover 60b. 66b are integrated by fitting. Here, since the engagement recess 66a is provided in the rear protruding portion 64 constituting the rear step portion of the luggage storage recess 65 of the front cover 60a, the rear cover 60b can be fitted at a location where rigidity is increased. It becomes possible.

  As shown in FIG. 15 in a sectional view taken along the line EE in FIG. 5, the base cover 60 has a front protruding portion 63 having a space 63a formed in a portion supported by the front connecting member 43 and protruding upward. The bent portion 43 c of the front connecting member 43 supports the base cover 60 in the space 63 a inside the front projecting portion 63. Since the bent portion 43c of the front connecting member 43 supports the base cover 60 in the space inside the front protruding portion 63, it is possible to suppress the displacement of the front connecting member 43 with respect to the base cover 60. . In addition, the front connecting member 43 also supports the base cover 60 in a space 63a inside the front protruding portion 63 at a portion other than the bent portion 43c.

<Modification>
Although the configuration of the vehicle seat of the present invention has been described above by way of an example, the above-described embodiment is merely an example, and other embodiments are also possible.

  In the above embodiment, as shown in FIG. 9, the top 41b whose side wall of the first base bracket 41 is raised and the top 42b where the side wall of the second base bracket 42 is raised are arranged at substantially the same position in the front-rear direction. However, as shown in FIG. 16, the top 41b of the first base bracket 41 may be arranged on the front side in the front-rear direction with respect to the top 42b of the second base bracket 42. In FIG. 16, the rotation axis of the first connection link 11 a and the rotation axis of the second connection link 11 b are indicated by broken lines, and the rotation axis of the first connection link 11 a and the rotation axis of the second connection link 11 b are indicated by dashed lines. The axis of the rotation shaft is shown.

  The top 41b of the first base bracket 41 supports the first connection link 11a on the side where the reclining device 13 is disposed, and the top 42b of the second base bracket 42 is on the side where the reclining device 13 is not disposed. Of the second connecting link 11b.

  Therefore, of the connection links 11, the support rigidity of the second connection link 11b on the side where the reclining device 13 is not disposed is weaker than the support rigidity of the first connection link 11a on the side where the reclining device 13 is disposed. . Therefore, as shown in FIG. 16, by arranging the top 42b of the second base bracket 42 on the front side with respect to the top 41b of the first base bracket 41, the second connecting link 11b on the side where the reclining device 13 is not arranged is provided. The distance L2 from the rotation axis of the first base link 41 to the top 41b of the first base bracket 41 is determined by the distance L2 from the rotation axis of the first base link 41 to the top 42b of the second base bracket 42. It can be longer (separated) than the distance L1 (distance L2> distance L1 in the seat front-back direction).

  According to the vehicle seat according to the modified example, the first base bracket 41 on the side where the reclining device 13 is disposed while efficiently supporting the seat cushion 2 on the top portion 42b of the second base bracket 42 having low support rigidity. Can secure a space near the top 41b.

The vehicle seat according to the above-described modified example has the following configuration.
A seat body Sh including a seat back 1 and a seat cushion 2,
A first support portion (the top portion 41b of the first base bracket 41) and a second support portion (the top portion 42b of the second base bracket 42) for supporting the seat cushion 2 from below;
The first support portion 41b and the second support portion 42b are provided apart from each other in the width direction of the vehicle seat,
The seat back 1 is supported by the first connecting link 11a connected to the first supporting portion 41b and the second connecting link 11b connected to the second supporting portion 42b so as to be able to fall down on the vehicle body floor. Yes,
A reclining device 13 that rotatably supports the seat back 1 is attached to the first connection link 11a.
In the front-rear direction of the vehicle seat, the distance L1 between the rotation axis of the first connection link 11a and the contact portion between the first support portion 41b and the seat cushion 2 is greater than the distance L1 from the rotation axis of the second connection link 11b. A vehicle seat, wherein a distance L2 between a contact portion between the second support portion 42b and the seat cushion 2 is long.

  Further, the arrangement of the various operation levers is not limited to the one described in the above embodiment, and can be arranged at the position shown in FIG. In the example shown in FIG. 17, a reclining operation lever 8X for tilting the seat cushion 2 is provided at a shoulder opening inside the vehicle of the seat back 1. A tip-up operation lever 8Y for flipping up (tipping up) the seat cushion 2 is provided near the lower surface of the seat cushion 2 on the vehicle outside. A slide rail operation lever 8Z for sliding the seat body Sh in the front-rear direction is provided near the lower surface of the seat cushion 2 inside the vehicle. Each of the operation levers is connected to a cable (not shown). By operating the various operation levers, the corresponding cable is pulled and the lock is released, so that the seat cushion 2 can be tilted (reclined) and the seat can be reclined. The cushion 2 can be flipped up (tip-up) and the seat body Sh can slide.

  The operation direction of the various operation levers (in other words, the unlocking direction) is a direction in which the reclining operation lever 8X and the tip-up operation lever 8Y lift the lever backward and upward, and the sliding rail operation lever 8Z is downward. It is the direction to push down.

  At this time, as shown in FIG. 18, a convenience store hook 9 may be provided on the lower surface of the seat cushion 2. If the convenience store hook 9 is provided on the lower surface of the seat cushion 2, when the luggage is put in the bag and placed on the luggage accommodation recess 65 in the tip-up state, the handle of the bag is put on the convenience store hook 9. It becomes possible to catch. Further, by hooking the handle of the bag on the convenience store hook 9, the bag containing the baggage can be hung.

  In the above embodiment, as shown in FIG. 9, a pair of slide rails are connected by a front connection member 43 extending in the seat width direction, and a front connection member 43 is connected by a connection member 45 extending in the seat front-rear direction. Although the example in which the rear connection member 44 is connected is shown, as shown in FIG. 19, the first base bracket 41 and the second base bracket 42 are connected by a plurality of connection members 46 extending in the seat width direction. Is also possible. In addition, as shown in FIG. 20, a configuration may be adopted in which a connecting member 46 extending in the sheet width direction is provided without providing the connecting member 45 extending in the sheet front-rear direction. Further, as shown in FIG. 21, in addition to the connecting member 45 extending in the seat front-rear direction, the front connecting member 43 and the rear connecting member 44 may be connected by a plurality of connecting members 47 extending in the seat front-rear direction. It is possible. As described above, by appropriately arranging the connection members 45, 46, and 47 in the seat width direction and / or the seat front-back direction, the support rigidity of the luggage storage recess 65 and the support rigidity of the support base 40 are set to desired rigidities. It is possible to do.

  Further, in the above embodiment, as shown in FIG. 10, the reclining device 13 is attached to the outer side surface of the first base bracket 41 using the two plate members 13a and 13b, but as shown in FIG. It is also possible to use only one plate 13c as a plate for attaching the reclining device 13 to the first base bracket 41X. In the example shown in FIG. 22, the number of components is reduced by changing the shape of the first base bracket 41X so as to extend outward in the seat width direction and sharing components.

  Further, in the above embodiment, as shown in FIG. 10, the reclining device 13 is attached to the outer side surface of the first base bracket 41 using the two plate members 13a and 13b, but as shown in FIG. It is also possible to use the plate 13d so that the plate 13d plays the role of the plate 13b and the first base bracket 41 shown in FIG. In the example shown in FIG. 23, the first base bracket 41Y is configured by a plate 13d and two bracket members 41Ya and 41Yb. Specifically, the two bracket members 41Ya and 41Yb are welded as indicated by welding marks 41Yc, and a plate 13d is attached outside the bracket member 41Yb in the sheet width direction.

Reference Signs List 1 seat back 2 seat cushion 2a slit 3 headrest 4 slide rail mechanism (a pair of slide rails)
4a Lower rail 4b Upper rail 5 Connection member 6 Buckle 6a Support bracket 7 Operation strap 8X Reclining operation lever 8Y Tip-up operation lever 8Z Slide rail operation lever 9 Convenience hook 10 Seat back frame 11 Connection link 11a First connection link 11b Second connection link 13 Reclining device 13a, 13b, 13c, 13d Plate 14 Receiving part 14a Main body 14b Cover member 15a, 15b, 15c Pipe member 20 Seat cushion frame 25 Cushion lock device 26 Damper 27 Cable 28 Lock piece 29 Engagement member 29a First engagement Hole 29b Second engagement hole 40 Support base 40A First base member (base member)
40B 2nd base member (base member)
41, 41X, 41Y First base bracket 41a Flange 41b Top 41c Closed section 41Ya, 41Yb Bracket member 41Yc Welding mark 42 Second base bracket 42a Flange 42b Top 42c Closed section 43 Front connecting member (first connecting member)
43a First end 43b Second end 43c Bent (reinforcement)
44 Rear connecting member (second connecting member)
45, 46, 47 connecting member 60 base cover (accommodating part)
60a Front base cover 60b Front base cover 61 First ridge 61a Top 62 Second ridge 62a Top 63 Front projection 63a Space 64 Rear projection 65 Luggage housing recess 66a Engaging recess 66b Engaging convex 100 Energizing device 110 urging member F storage floor S vehicle seat (vehicle seat)
Sh seat body

Claims (8)

A seat body including a seat back and a seat cushion,
A storage unit provided below the seat cushion and capable of storing articles,
A pair of base members supporting the seat body,
A connecting member for connecting the pair of base members,
The housing is supported by the connecting member,
The vehicle seat according to claim 1, wherein the connecting member includes a reinforcing portion between one end and the other end of the connecting member.   2. The vehicle seat according to claim 1, wherein the reinforcing portion is a bent portion that is bent so as to protrude forward from the vehicle seat. 3. The housing portion, at a portion supported by the connecting member, is formed with a protruding portion that protrudes upward and has a space therein.
The vehicle seat according to claim 2, wherein the bent portion of the connecting member supports the housing in the space. A reclining device that rotatably supports the seat back,
The vehicle seat according to any one of claims 1 to 3, wherein the reclining device is arranged at the same height position as the connecting member in a vertical direction of the vehicle seat. The connection member is a first connection member,
A second connecting member connecting the pair of base members on a rear side of the vehicle seat with respect to the first connecting member;
The vehicle seat according to any one of claims 1 to 4, wherein the first connection member and the second connection member are connected by a connection member. The pair of base members have a lower rail and an upper rail slidable with respect to the lower rail, and a pair of slide rails for sliding the seat body along a front-rear direction of a vehicle seat; With a base bracket attached to the rail,
The base bracket has a flange,
The vehicle seat according to any one of claims 1 to 5, wherein the connecting member is supported by the flange.   7. The vehicle seat according to claim 6, wherein the connection member is disposed at the same height position as the upper rail in a vertical direction of the vehicle seat. The base bracket has a closed cross section,
The vehicle seat according to claim 6, wherein the connecting member is connected to the base bracket while avoiding the closed cross-section.

Images