JP7073147B2 - Vehicle seat - Google Patents

Description

The present invention relates to a vehicle seat.

The vehicle seat described in Patent Document 1 includes a board hinged to the back surface of the seat back. When the seat back is tilted to the front side of the seat, the board is tilted to the rear side of the seat and is bridged between the back surface of the seat back and, for example, the luggage compartment on the rear side of the seat. As a result, the luggage compartment is expanded.

Japanese Unexamined Patent Publication No. 2013-116661

In the vehicle seat described in Patent Document 1, an unused board is exposed on the back surface of the seat back in a state where the seat back is raised, and the appearance quality of the seat is impaired. Further, when the board is hinged to the back portion of the seat back of the front seat, the space for placing the legs of the occupant seated in the rear seat is compressed by the unused board.

The present invention has been made in view of the above circumstances, and an object of the present invention is to improve the appearance quality of a vehicle seat and to improve the comfort of a occupant.

The vehicle seat of one aspect of the present invention is for forming a flat surface in the vehicle interior space with a seat cushion installed in the vehicle, a seat back that can be tilted with respect to the seat cushion, and the seat back tilted. A vehicle seat with a bridge board used in the vehicle, the lower frame having a lower frame attached to the body of the vehicle to support the seat cushion, wherein the lower frame is a lower side fixed to the body. The frame, the front leg portion rotatably supported at one end at the position of the lower side frame in the front direction of the seat, and the rear leg portion rotatably supported at one end at the position of the lower side frame in the rear direction of the seat. The seat cushion is provided with a shield spanned between the pair of rear legs separated in the seat width direction, and is rotatably supported by the other ends of the front legs and the rear legs. In the first state of forming the maximum storage space in which the bridge board is stored with the body, and in the position in front of the seat from the position of the storage space, the distance between the body and the body is minimized. The seat cushion is movable between two states, and when the seat cushion is in the second state, the end portion of the shield tilted together with the rear leg portion on the rear side of the seat is formed by a notch. The bridge board is provided with an outlet, and the bridge board is pulled out from the storage space to the rear of the seat through the outlet, and the seat cushion is in the second state and the seat back is tilted to tilt the seat. When overlapping with the cushion, the front end of the seat is placed on the shield, and the rear end of the seat is placed on the rear seat in the same state or on the loading surface of the luggage compartment. ..

According to the present invention, the appearance quality of the vehicle seat can be improved, and the comfort of the occupant can be improved.

It is a perspective view of an example of a vehicle seat for demonstrating an embodiment of this invention. It is a side view showing the operation of the vehicle seat of FIG. 1, (A) shows a seatable state where a seat back is raised, (B) shows a state where a seat back is tilted down, (C) shows a dive down state. .. It is a perspective view of the dive down state of the vehicle seat of FIG. It is a perspective view of the vehicle seat of FIG. 1 in a dive-down state and when a bridge board is used. It is sectional drawing which shows an example of the storage mode of the bridge board in the vehicle seat of FIG. It is sectional drawing when the bridge board of FIG. 5 is pulled out from a storage space. It is a schematic diagram of an example of a guide wire which holds the bridge board of FIG. 5 in a storage space. It is a side view of the guide wire of FIG. It is a side view of the modification of the guide wire of FIG. It is a perspective view of the main part of the modification of the vehicle seat of FIG.

FIG. 1 shows an example of a vehicle seat for explaining an embodiment of the present invention.

The vehicle seat 10 is a seat mounted on a vehicle such as an automobile. In the following description, with the seat 10 mounted on the vehicle, the front side of the vehicle is the "front" of the seat, the rear side of the vehicle is the "rear" of the seat, the upper side of the vehicle is the "top" of the seat, and the bottom of the vehicle. The side is "below" the seat.

The seat 10 includes a seat cushion 20 that supports the buttocks and thighs of a occupant (hereinafter referred to as a seated person) seated on the seat 10, and a seat back 30 that supports the waist and back of the seated person. The seat cushion 20 and the seat back 30 are supported by a lower frame 40 attached to the floor (body) of the vehicle. The seat back 30 can be tilted with respect to the seat cushion 20, and the seat 10 further includes a reclining device 50 that locks the tilt of the seat back 30.

In the seat 10 of this example, the back surface of the seat back 30 is moved forward and lowered along the floor in a state where the seat back 30 is tilted until it overlaps the seat surface of the seat cushion 20. It is a so-called dive-down seat that can be used as a loading surface for luggage and the like.

The seat cushion 20 has a pair of cushion side frames 21 extending in the front-rear direction at intervals in the seat width direction. The rear end portion 22 of the cushion side frame 21 is rotatably attached to the lower frame 40. The pair of cushion side frames 21 are covered by a cushion pad, and the cushion pad is covered by a cushion trim cover 23.

The seat back 30 has a pair of back side frames 31 extending in the vertical direction at intervals in the seat width direction when raised with respect to the seat cushion 20. The lower end 32 of the backside frame 31 is rotatably attached to the lower frame 40 via a reclining device 50 that locks the tilt of the seat back 30. The pair of backside frames 31 are covered by a cushion pad, and the cushion pad is covered by a back trim cover 33.

The lower frame 40 has a pair of rear leg portions 41 arranged at intervals in the seat width direction, a pair of front leg portions 42 arranged at intervals in the seat width direction, and a pair of front leg portions 42 at intervals in the seat width direction. It has a pair of lower side frames 43 arranged. The lower side frame 43 is fixed to the floor, and the lower ends of the rear leg 41 and the front leg 42 are rotatably supported by the lower side frame 43. The upper end of the rear leg 41 rotatably supports the rear end 22 of the cushion side frame 21 and the lower end 32 of the back side frame 31, and the upper end of the front leg 42 is the cushion side frame 21. The front end is rotatably supported.

The rear leg portion 41, the front leg portion 42, the lower side frame 43, and the cushion side frame 21 constitute a four-section link mechanism. The rotation of the hind legs 41 and the front legs 42 keeps the seat cushion 20 substantially parallel to the floor, moving forward and descending along the floor, and moving backward along the floor. And rise.

FIG. 2 shows a dive-down operation of the sheet 10.

FIG. 2A shows a seatable state in which the seat back 30 is raised. The rear leg 41 and the front leg 42 of the lower frame 40 are substantially upright with respect to the floor F, and the seat cushion 20 is floating from the floor F. In this seatable state, the lock by the reclining device 50 is released, and the seat back 30 is tilted until it overlaps the seat surface of the seat cushion 20.

FIG. 2B shows a state in which the seat back 30 is tilted down. The rear leg 41 and the front leg 42 of the lower frame 40 are still substantially upright with respect to the floor F, and the seat cushion 20 is floating from the floor F. In this state, the rear leg 41 and the front leg 42 are rotated, and the seat cushion 20 is moved forward and lowered along the floor F.

FIG. 2C shows a state in which the seat back 30 is tilted and the seat cushion 20 is moved forward and lowered along the floor F, that is, a state in which the seat cushion 20 is dive down. When shifting from the dive-down state to the seatable state, the above-mentioned operations are performed in the reverse order.

In the state where the seat cushion 20 is floating from the floor F (first state) shown in FIGS. 2A and 2B, a storage space is provided between the seat cushion 20 and the floor F. A bridge board 60 is stored in this storage space. Then, in the dive-down state (second state) shown in FIG. 2C, the seat cushion 20 is arranged in front of the seat in the storage space for accommodating the bridge board 60, and the seat surface of the seat cushion 20 is arranged. The seat back 30 that has been laid down until it overlaps with the floor F is arranged along the floor F.

3 and 4 show the sheet 10 in the dive down state.

In the dive-down seat 10, the seat cushion 20 is arranged in front of the seat in the storage space for accommodating the bridge board 60, and the pair of rear legs 41 of the lower frame 40 fills the storage space with the seat width. It is sandwiched in the direction and arranged along the floor F. A shield 44 is bridged over the pair of rear legs 41, and the upper surface 44a of the shield 44 is connected to the back surface 30a of the seat back 30 on the rear side of the seat of the seat back 30.

An outlet 45 formed by a substantially rectangular notch is provided at the end of the shield 44 on the rear side of the seat, and the end 61 on the rear side of the seat of the bridge board 60 is exposed to the outlet 45. There is. The bridge board 60 is pulled out from the storage space to the rear of the seat through the outlet 45.

As shown in FIG. 4, the seat front end 62 of the pulled out bridge board 60 is placed on the edge 46 of the outlet 45, and the seat rear end 61 is provided, for example, behind the seat 10. It is placed on the loading surface of the luggage compartment (not shown), and the bridge board 60 is bridged between the seat 10 and the luggage compartment. The edge 46 of the outlet 45 is a stepped recess, and the end 62 of the bridge board 60 fits into the edge 46 and is held by the edge 46.

The bridge board 60 bridged between the seat 10 and the luggage compartment is installed on the rear side of the seat back 30 on the extension of the back surface 30a of the seat back 30, and the back surface 30a of the seat back 30 and the shield. The upper surface 44a of the 44 and the bridge board 60 are continuously connected along the floor F. As a result, the luggage compartment is expanded.

When the seat 10 is a front seat and the rear seat is installed behind the seat 10, the bridge board 60 is bridged between the seat 10 and the rear seat. In this case, the rear seats are dive down like the seat 10, and the seat back is also arranged along the floor F. The end portion 61 on the rear side of the seat of the bridge board 60 is placed on the seat back of the rear seat. Then, the bridge board of the rear seats is bridged between the rear seats and the luggage compartment, so that the luggage compartment is expanded to the seat 10 which is the front seats via the rear seats.

As described above, when the seat 10 is in the seatable state shown in FIG. 2A and the bridge board 60 is not used, the bridge board 60 is stored in the storage space between the seat cushion 20 and the floor F. To. Thereby, the appearance quality of the sheet 10 can be improved. Further, when the seat 10 is a front seat, the space for placing the legs of the occupant seated on the rear seat is not pressed by the bridge board 60, and the comfort of the occupant can be enhanced.

5 and 6 show an example of a storage mode of the bridge board 60.

The bridge board 60 may be stored, for example, substantially parallel to the floor F, but in this example, the bridge board 60 is stored along an inclined direction A that is separated from the floor F from the front of the seat toward the rear of the seat. The bridge board 60 stored in this way is pulled out from the storage space to the rear of the seat along the inclination direction A.

By storing the bridge board 60 in an inclined manner, the length of the bridge board 60 that can be stored in the storage space can be increased as compared with the case where the bridge board 60 is stored substantially parallel to the floor F. Further, by storing the bridge board 60 in an inclined manner, it is possible to improve the operability when the bridge board 60 is pulled out from the storage space to the rear of the seat. Further, since the bridge board 60 is tilted and stored, it is possible to prevent the bridge board 60 from jumping out to the rear of the seat due to a sudden start of the vehicle or the like.

The sheet 10 is provided with a stopper 70 for more reliably suppressing the jumping out of the bridge board 60. The stopper 70 is bridged over a pair of rear leg portions 41 of the lower frame 40.

As shown in FIG. 5, in the state where the seat cushion 20 is floating from the floor F (first state), the stopper 70 is arranged on the track where the bridge board 60 is pulled out from the storage space. When the bridge board 60 moves to the rear of the seat along the inclination direction A, the bridge board 60 and the stopper 70 arranged on the track of the bridge board 60 come into contact with each other. As a result, the jumping out of the bridge board 60 can be suppressed more reliably.

As shown in FIG. 6, the rear leg portion 41 of the lower frame 40 is rotated along with the dive-down operation of the seat 10, and the stopper 70 is also rotated integrally with the rear leg portion 41. Then, in the dive-down state (second state), the stopper 70 is arranged so as to be off the track where the bridge board 60 is pulled out from the storage space. As a result, the bridge board 60 can be pulled out to the rear of the seat along the inclination direction A.

The material and shape of the stopper 70 are not particularly limited, but the stopper 70 is formed by, for example, appropriately bending a steel wire. When the stopper 70 is formed of a steel wire, the stopper 70 is preferably covered with an appropriate covering material such as a non-woven fabric. Since the stopper 70 is covered with a covering material, rust generated on the stopper 70 adheres to the surface 60a of the bridge board 60 even if the bridge board 60 is in sliding contact with the stopper 70 when it is pulled out from the storage space. Can be prevented.

7 and 8 show an example of a pair of guide wires that hold the bridge board 60 in the storage space.

The sheet 10 includes a pair of guide wires 80 that hold the bridge board 60 in the storage space. The guide wires 80 are provided in each of the pair of lower side frames 43 of the lower frame 40, and are provided in the storage space at intervals in the seat width direction. The guide wire 80 has a support portion 81 that supports the back surface 60b of the bridge board 60, and a receiving portion 82 that receives the end portion 62 on the front side of the seat of the bridge board 60. The guide wire 80 is appropriately bent, and the support portion 81 and the receiving portion 82 are integrally formed.

The support portion 81 extends along an inclined direction A in which the bridge board 60 is drawn out from the storage space. A pair of guide ribs 63 are provided on the back surface 60b of the bridge board 60, and the pair of guide ribs 63 sandwich the support portion 81 of the pair of guide wires 80 in the seat width direction. By engaging the support portion 81 and the guide rib 63, the movement of the bridge board 60 is guided in the inclination direction A, and the bridge board 60 is pulled out along the inclination direction A. The support 81 of the pair of guide wires 80 may sandwich the pair of guide ribs 63.

The receiving portion 82 has a lift restricting portion 83 and a contact portion 84. The lift regulation unit 83 is arranged above the end portion 62 of the bridge board 60, and regulates the lift of the end portion 62 due to the vertical movement of the vehicle, for example. The abutting portion 84 abuts on the tip 62a of the end portion 62 whose lift is restricted, and prevents the bridge board 60 from moving beyond the abutting portion 84 to the front of the seat.

Here, in the example shown in FIG. 8, the lift restricting portion 83 and the upper surface 62b of the end portion 62 are in contact with each other, but preferably, as shown in FIG. 9, the support portion 81 is at the center of gravity G of the bridge board 60. On the other hand, it extends to the front of the seat and to the rear of the seat, and a gap is opened between the floating restricting portion 83 and the upper surface 62b of the end portion 62. As a result, the back surface 60b of the bridge board 60 and the support portion 81 come into contact with each other over the entire length of the support portion 81, and the stability of the bridge board 60 is enhanced. Then, by increasing the stability of the bridge board 60, the inclination of the bridge board 60 accompanied by the ups and downs of the end portion 62 is suppressed. Even when the bridge board 60 is tilted, since there is a gap between the upper surface 62b of the end portion 62 and the lift regulation portion 83, contact between the end portion 62 and the lift regulation portion 83 can be suppressed, and both of them can be suppressed. It is possible to suppress the generation of tapping sound due to contact.

The bridge board 60 may be connected to the lower frame 40 via a flexible connecting member such as a belt. In the example shown in FIG. 10, one end of the connecting member 47 is fixed to the cross member 48 spanning the pair of lower side frames 43, and the other end of the connecting member 47 is fixed to the back surface 60b of the bridge board 60. The bridge board 60 is connected to the lower frame 40 via the connecting member 47. By connecting the bridge board 60 to the lower frame 40, even if the bridge board 60 pops out to the rear of the seat, excessive popping out can be suppressed and the bridge board 60 can be prevented from being lost.

As described above, the vehicle seat disclosed in the present specification includes a lower frame attached to the body of the vehicle, a first state in which a storage space is provided between the body, and the storage space. The seat cushion supported by the lower frame so as to be movable between the second state arranged in front of the seat, the seat back that can be tilted with respect to the seat cushion, and the seat cushion are in the second state. Further, the bridge board is provided with a bridge board that can be installed on the extension of the back surface of the seat back on the rear side of the seat of the seat back in a state where the seat back is tilted down and overlaps with the seat cushion. It is stored in the storage space so that it can be pulled out from the storage space to the rear of the seat.

Further, in the vehicle seat disclosed in the present specification, the bridge board is stored in the storage space along an inclined direction away from the body from the front of the seat toward the rear of the seat. It is pulled out along the inclination direction.

Further, the vehicle seats disclosed in the present specification are provided in the storage space at intervals in the seat width direction, and a pair of guide wires for holding the bridge board so as to be able to be pulled out along the inclined direction. The guide wire extends along the inclined direction, receives a support portion that supports the lower surface of the bridge board, and an end portion of the bridge board on the front side of the seat, and restricts the lifting of the end portion. It has a receiving part and a receiving part.

Further, in the vehicle seat disclosed in the present specification, the support portion extends in front of the seat and rearward of the seat with respect to the center of gravity of the bridge board, and the receiving portion and the end of the bridge board on the front side of the seat. There is a gap between the upper surface of the portion and the upper surface of the portion.

Further, in the vehicle seat disclosed in the present specification, when the seat cushion is in the first state, the bridge board is arranged on an orbit where the bridge board is pulled out from the storage space, and the seat cushion is the second. It is provided with a stopper that is placed off the track when it is in a state.

10 Vehicle seat 20 Seat cushion 21 Cushion side frame 22 Cushion side frame rear end 23 Cushion trim cover 30 Seat back 31 Back side frame 32 Lower end 33 Back trim cover 40 Lower frame 41 Rear leg 42 Front leg 43 Lower side Frame 44 Shield 45 Exit 46 Exit edge 47 Connecting member 48 Cross member 50 Reclining device 60 Bridge board 61 Bridge board end 62 Bridge board end 63 Guide rib 70 Stopper 80 Guide wire 81 Support 82 Receiving part 83 Lifting control part 84 Contact part A Inclination direction F Floor G Center of gravity

Claims (5)

For vehicles equipped with a seat cushion installed in the vehicle, a seat back that can be tilted with respect to the seat cushion, and a bridge board used to form a flat surface in the vehicle interior space with the seat back tilted. It ’s a sheet,
It has a lower frame attached to the body of the vehicle to support the seat cushion,
The lower frame includes a lower side frame fixed to the body, a front leg portion whose one end is rotatably supported at a position in the front direction of the seat of the lower side frame, and a position of the lower side frame in the rear direction of the seat. It is provided with a hind leg portion rotatably supported at one end thereof and a shield spanned between the pair of hind leg portions separated in the seat width direction.
The seat cushion, which is rotatably supported by the other ends of the front leg portion and the rear leg portion, has a first state of forming a maximum storage space for storing the bridge board between the front leg portion and the rear leg portion, and the storage thereof. At a position in front of the seat rather than a position in space, it is possible to move to and from the second state where the distance to the body is minimized.
When the seat cushion is in the second state, an outlet of the bridge board formed by a notch is provided at an end portion of the shield on the rear side of the seat, which is tilted together with the rear leg portion.
The bridge board pulled out from the storage space to the rear of the seat through the outlet is a seat when the seat cushion is in the second state and the seat back is tilted so as to overlap the seat cushion. A rear seat with the front end placed on the shield and the rear end of the seat in the same state, or a vehicle seat placed on the loading surface of the luggage compartment . The vehicle seat according to claim 1.
The bridge board is stored in the storage space along an inclined direction that is separated from the body from the front of the seat to the rear of the seat, and is a vehicle seat that is pulled out from the storage space along the inclined direction. The vehicle seat according to claim 2.
It is provided in the storage space at intervals in the seat width direction, and includes a pair of guide wires that hold the bridge board so that it can be pulled out along the inclination direction.
The guide wire is
A support portion extending along the inclined direction and supporting the lower surface of the bridge board, and a support portion.
A receiving portion that receives the end of the bridge board on the front side of the seat and regulates the lifting of the end.
Vehicle seat with. The vehicle seat according to claim 3.
The support portion extends in front of the seat and behind the seat with respect to the center of gravity of the bridge board.
A vehicle seat having a gap between the receiving portion and the upper surface of the front end portion of the bridge board. The vehicle seat according to any one of claims 1 to 4.
When the seat cushion is in the first state, the bridge board is arranged on an orbit drawn out from the storage space, and when the seat cushion is in the second state, it is arranged off the orbit. A vehicle seat with a stopper.

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