JP6046799B2 - Retractable vehicle seat - Google Patents

Description

  The present invention relates to a retractable seat mounted on a vehicle.

  Patent Document 1 proposes a seat mounted on a related vehicle. The related vehicle seat is mounted on, for example, an automobile, and defines a folded form by flipping up a seat cushion with respect to a seat back as a retracted form of the seat main body, and a storage recess that can store the seat main body of the stored form Is formed on the side wall surface. In addition, the side surface of the seat back is connected to the side wall surface so as to be rotatable in the vertical direction through the vertical axis hinge disposed in the storage recess, and the seat body in the storage form is locked under the lock on of the storage lock means. The seat cushion can be held in the storage position in the storage recess, and the seat cushion can be supported at the use position by the connection between the side surface and the side wall surface of the seat cushion by the support means.

JP 2002-0676759 A

  In such a related technique, the seat back cannot be operated at an appropriate inclination angle, and there is a risk of impairing the comfort in use. In addition, since the position of the side wall outer surface is determined in terms of design or standard, in order to form the storage recess, the position of the side wall inner surface must be pushed at least the depth of the recess toward the inside of the room. When approached, the left-right width dimension of the room is reduced accordingly, and the left-right width dimension of the seat is thus reduced, which may impair the comfort in use.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a retractable vehicle seat having improved comfort in use.

A retractable vehicle seat according to an embodiment of the present invention includes a seat cushion, a seat back, a vertical axis provided at a position close to a side wall of the vehicle, and a use state in which the retractable vehicle seat can be seated on the retractable vehicle seat. The vertical axis extends from a position extending substantially horizontally in the left-right direction of the vehicle to a position extending substantially horizontally in the front-rear direction of the vehicle in a retracted state in which the retractable vehicle seat is stored in a side wall of the vehicle. A base frame that is pivotally supported by the side wall so as to be horizontally rotatable, and supports the seat cushion so that the seat cushion can be flipped up with respect to the seat back, and the seat back is rotated back and forth in the use state. a base frame for rotatably supported, said a leg disposed to the left and right center side of the vehicle seat cushion, the front side of the seat cushion in the use state A front leg suspended in a freely rotatable manner; a rear leg having a lower end that is freely suspended from a rear side of the seat cushion in the state of use and is freely engageable and disengageable from the floor of the vehicle; A first link that rotatably connects the leg portion and the rear leg portion, a rotation shaft of the seat cushion and the seat back, and the rear leg portion are rotatably connected to vertically connect the rear leg portion. A leg portion including a second link that can be maintained in a state .

According to the above configuration, the seat back and the seat cushion that is flipped up around the vertical axis provided at a position close to the side wall of the vehicle are stored along the side wall of the vehicle. Therefore, the position of the inner surface of the side wall is not reduced in the left-right width, and can improve the comfortability in the use state of the seat. In addition, the base frame that supports the seat back and the seat cushion is supported (axially supported) on the side wall of the vehicle. Can be suppressed. Further, the front leg portion and the rear leg portion are rotatably connected by the first link. Therefore, when the front side of the seat cushion is flipped up, the front leg portion is folded at a portion that is the lower side of the seat cushion. Further, since the rear leg can be held in the vertical state by the second link, the lower end of the rear leg can be immediately engaged with the floor when the seat cushion is returned to the use state.

  The retractable vehicle seat further includes a reclining device that supports the seat back to the base frame so that the seat back can be pivoted back and forth in the use state, and can hold the seat back at a predetermined angle with respect to the base frame. You may prepare.

  According to the said structure, since a seat back can be hold | maintained to a suitable inclination angle with respect to a base frame with a reclining apparatus, the comfortability in use condition can be improved.

FIG. 1 is a perspective view of a vehicle seat in use according to an embodiment of the present invention. FIG. 2 is a perspective view of the vehicle seat showing a state in which the front side of the seat cushion of FIG. 1 is flipped up. FIG. 3 is a perspective view of the vehicle seat showing a state in which the seat cushion and the seat back of FIG. 2 are moved to the retracted state around the vertical axis. FIG. 4 is a perspective view of the vehicle seat showing a state where the seat cushion and the seat back of FIG. 1 are removed. FIG. 5 is a side view of FIG. FIG. 6 is a side view of the vehicle seat showing a state where the seat back of FIG. 5 is moved to a standing position and the front side of the seat cushion is flipped up. FIG. 7 is a side view of the vehicle seat showing a state in which the front side of the seat cushion is completely lifted from the state shown in FIG. FIG. 8 is a top view of a state in which the vehicle seat shown in FIG. 7 is moved to the retracted state. FIG. 9 is a detailed view around the vertical axis of FIG. FIG. 10 is a detailed view around the vertical axis shown in FIGS. 4 and 5. FIG. 11 is a perspective view showing the vehicle seat shown in FIGS. 4 and 5 from the rear.

The object of providing a vehicle seat with improved comfort in use is realized by the following configuration. That is, the retractable vehicle seat has a seat cushion, a seat back, a vertical axis provided at a position close to the side wall of the vehicle, and a left-right direction of the vehicle in a use state in which the retractable vehicle seat can be seated on the retractable vehicle seat. From the position extending substantially horizontally to the position where the retractable vehicle seat is stored in the side wall of the vehicle in a retracted state extending substantially horizontally in the front-rear direction of the vehicle, the seat can be horizontally rotated around the longitudinal axis. A base frame that is pivotally supported with respect to the side wall, and supports the seat cushion so that it can be flipped up with respect to the seat back, and supports the seat back so that it can pivot back and forth in the use state. When the a leg arranged on the left and right center side of the vehicle seat cushion, hanging rotatable in front of the seat cushion in the use state A bent front leg, a rear leg that has a lower end that is rotatably suspended on the rear side of the seat cushion in the use state and that can be engaged and disengaged from the floor of the vehicle, the front leg, and the A first link that rotatably connects the rear legs, a rotation shaft of the seat cushion and the seat back, and the rear legs can be rotatably connected to hold the rear legs in a vertical state. A second link and a leg portion .

  Hereinafter, a retractable vehicle seat 1 according to an embodiment of the present invention will be described with reference to FIGS. The retractable vehicle seat 1 includes a seat back 3 that serves as a backrest for the user, a seat cushion 2 that can be seated by the user and can be lifted up by the seat back 3, and a headrest that is supported by the seat back 3 so as to be movable up and down. 4. The retractable vehicle seat 1 is a seat that is installed in a vehicle of the type that is commonly used in a large room, which is called a one-box type and has a cargo room and a passenger compartment. It can be a seat, a driver seat or a passenger seat. The retractable vehicle seat 1 is a seat arranged on the right side in the traveling direction of the automobile, but may be a seat arranged in a symmetrical position. The retractable vehicle seat of the present invention is also applicable to vehicles other than automobiles.

  As shown in FIGS. 1 to 3, a vehicle body 5 of a vehicle (for example, an automobile) on which the retractable vehicle seat 1 is installed includes a floor 6 and side walls 7. The side wall 7 may be an inner panel made of an iron plate or an interior material made of a synthetic resin, and means that which covers an outer plate (not shown) from the room. On the floor 6, the bottom 8a of the front leg 8 suspended from the front side FR of the seat cushion 2 at the left and right center side IN of the vehicle of the seat cushion 2 is placed. Further, the floor 6 supports a first striker 11 in which a latch 10 exposed from a lower end portion 9a (see FIG. 4) of a rear leg 9 suspended from the rear RR of the seat cushion 2 is detachable. Yes.

  An upper end portion of the side portion 8b of the front leg portion 8 is rotatably supported by brackets 2d and 2d described later by a first pin 8c. As shown in FIG. 5, the upper end portion of the rear leg portion 9 is rotatably supported by a bracket 27 supported by a second frame 2b described later via a second pin 9c. A second striker 12 is provided on the side wall 7. A lock 13 disposed on the side wall 7 side of the front FR of the seat cushion 2 is supported by the second striker 12 so as to be disengageable. The second striker 12 is supported by being welded to the side wall 7 via a bracket 12a having an L-shaped cross section. A window 14 and an armrest 15 are formed on the side wall 7.

As shown in FIG. 4, the seat cushion 2 has a linear shape arranged on a first frame 2a made of a pipe having a U-shape when viewed from the upper side UP to the lower side LWR and a rear side RR of the first frame 2a. The second frame 2b, S-shaped springs 2c and 2c installed between the first frame 2a and the second frame 2b, and brackets 2d and 2d provided on the front left side FR of the first frame 2a on the left and right center side IN. Is provided.

  As shown in FIG. 4, the seat back 3 has a first frame 3a formed of a pipe that forms a closed loop when viewed from the front side FR to the rear side RR, and a headrest 4 that is disposed on the upper side UP of the first frame 3a (not shown). The headrest holders 4a and 4a which can raise and lower the stay and can be held at an appropriate position, the holder bracket 4b which holds the headrest holders 4a and 4a to the first frame 3a, and the left and right direction of the first frame 3a Back springs 3b and 3b that extend linearly to IN and OUT and are appropriately separated in the vertical direction and fixed to the first frame 3a, and the first and first supported by the left and right sides of the first frame 3a 2 upper arms 3c and 3d.

As shown in FIG. 4, a frame 21 fixed to the side wall 7 protrudes toward the left and right center side IN, and a bolt 16 that is a “vertical axis” penetrating from the upper side UP of the frame 21 to the lower side LWR is illustrated. The nut 21 is supported substantially perpendicularly to the frame 21 via a base frame 18 described later. 4 and 5 show a state in which the retractable vehicle seat 1 is stored along the side wall 7 of the vehicle body 5 when looking down from the upper side UP to the lower LWR . The base frame 18 extends substantially horizontally in the front-rear direction FR, RR in the “stored state” from a position extending horizontally in the left-right direction, which is the outer side OUT in the left-right direction and the left-right center side IN in the “use state”. The position bolt 16 is pivotally supported so as to be substantially horizontally rotatable. Here, the use of the word “abbreviated” means that both the base frame 18 and the bolt 16 are supported with a slight inclination and the bolt 16 is supported with a slight inclination. doing. The base frame 18 has a hollow square cross section and is made of an iron plate.

As shown in FIGS. 4 and 8 to 11, the stopper bracket 19 is pivotally supported by a bolt 16 so as to be rotatable in a substantially horizontal direction. The stopper bracket 19 has a first surface 19a (see FIGS. 9 and 10) disposed on the upper side UP of the upper surface of the base frame 18, and a second surface 19b ( refer to FIG. 9) disposed on the lower LWR of the lower surface of the base frame 18 . 9 and FIG. 10) and a third surface 19 c (see FIG. 9 and FIG. 10) disposed on the rear side RR of the rear surface of the base frame 18 so as to surround the base frame 18. Yes. The meaning of the word “abbreviation” here is the same as that described for the base frame 18 above. On the front side FR of the stopper bracket 19, a bolt 20 that is a “stopper” is provided together with a washer 20 a. As shown in FIG. 10, a stopper block 31 having an engaging portion 32 is fixed to the front side FR of the front surface of the base frame 18 with screws 33 and 33. When the automobile seat 1 is in the “use state” shown in FIG. 4, the bolt 20 that is a “stopper” is engaged with the engaging portion 32 of the stopper block 31 as shown in FIG. 10 . When the automobile seat 1 is in the “retracted state” shown in FIGS. 8 and 9, the bolt 20 that is a “stopper” is positioned outside the engaging portion 32 of the stopper block 31.

  The first frame 2 a of the seat cushion 2 is connected to the base frame 18 via an arm 28 and is pivotally supported by a fifth pin 29 so as to be rotatable up and down. The first frame 2a is always urged by the spring 25 in the flip-up direction.

  The seat back 3 is supported by an end 18a of the vehicle frame OUT on the outside of the base frame 18 via a reclining device 17 that can be rotated in the front-rear direction. The reclining device 17 includes an operation means 17a. The seat back 3 is always urged to the front side FR by a winding spring 30 (see FIGS. 9 and 10) disposed in the reclining device 17. The reclining device 17 can hold the seat back 3 at an appropriate (predetermined) inclination angle with respect to the base frame 18 (or the seat cushion 2 in use).

  As shown in FIG. 4, the front leg 8 and the rear leg 9 are connected by a first link 24. The first link 24 has a front end 24a rotatably connected to the side 8b of the front leg 8 via a third pin 8d, and a rear end 24b connected to the rear leg 9 via a fourth pin 9b. It is connected rotatably. As shown in FIG. 6, the base frame 18 and the rear leg portion 9 are connected by a second link 26. One end of the second link 26 is rotatably supported by the end 18 b on the left and right center side IN of the base frame 18 via a fifth pin 29, and the other end is rotatably supported by the rear leg 9. Yes.

  The retractable vehicle seat 1 is provided with a first operation member 22 that is connected to operation means arranged in a luggage compartment (not shown) via a cable. In addition, the retractable vehicle seat 1 is provided with a second operation member 23 connected to an operation means arranged in a luggage compartment (not shown) via a cable. When the first operating member 22 is pulled to the rear side RR, the reclining device 17 is unlocked, the seat back 3 rises from the position shown in FIG. 5 to the position shown in FIG. 6, and the lock 13 of the seat cushion 2 is second. Leave the striker 12. Then, when the second operating member 23 is pulled to the rear side RR, the latch 10 of the rear leg portion 9 of the seat cushion 2 is detached from the striker 11, and the front side FR of the seat cushion 2 is moved by the urging force of the spring 25 as shown in FIG. It lifts from the state to the state of FIG.

  Next, the operation of the embodiment of the present invention having the above configuration will be described.

  The seat back 3 and the seat cushion 2 that is flipped up are stored along the side wall 7 around a bolt 16 having a “vertical axis” provided in the vicinity of the side wall 7 of the vehicle body 5 of the vehicle. Therefore, the left and right OUT and IN width dimensions of the inner surface of the side wall 7 are not reduced. Therefore, the comfort in the use state of the retractable vehicle seat 1 can be improved. Further, since the base frame 18 that supports the seat back 3 and the seat cushion 2 is supported (axially supported) on the side wall 7 of the vehicle body 5 of the vehicle, the traveling of the vehicle of the retractable vehicle seat 1 in the retracted state is performed. The vibration due to vibrations such as time can be suppressed as much as possible. In addition, since the seat back 3 can be held at an appropriate inclination angle with respect to the base frame 18 by the reclining device 17, it is possible to improve the comfort in use.

  Further, since the front leg portion 8 and the rear leg portion 9 are rotatably connected by the first link 24, when the front side FR of the seat cushion 2 is flipped up, a portion that becomes the lower LWR of the seat cushion 2 is The front leg 8 can be folded. Further, since the rear leg portion 9 can be held in a substantially vertical state, the lower end portion 9a of the rear leg portion 9 can be immediately engaged with the floor 6 when the seat cushion 2 is returned to the use state.

  In the above-described embodiment, the seat back 3 is supported on the base frame 18 via the reclining device 17, but the present invention is not limited to this. For example, the seat back 3 is directly attached without using the reclining device 17. You may make it support on the base frame 18 rotatably.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, A various deformation | transformation is possible.

Claims (2)

A retractable vehicle seat,
Seat cushion,
Seat back,
A vertical axis provided at a position close to the side wall of the vehicle;
Front and rear of the vehicle in a retracted state in which the retractable vehicle seat is stored in a side wall of the vehicle from a position extending in a horizontal direction in the left-right direction of the vehicle in a use state where the vehicle can be seated on the retractable vehicle seat A base frame that is pivotally supported with respect to the side wall so as to be horizontally rotatable around the longitudinal axis at a position extending substantially horizontally in a direction, and supports the seat cushion so that it can be flipped up with respect to the seat back And a base frame that supports the seat back so as to be pivotable back and forth in the use state;
Legs arranged on the left and right center side of the vehicle of the seat cushion, the front leg part being rotatably suspended on the front side of the seat cushion in the use state, and the rear of the seat cushion in the use state A rear leg having a lower end that is freely suspended on the side of the vehicle and that can be engaged with and disengaged from the floor of the vehicle, a first link that rotatably connects the front leg and the rear leg, and the seat A leg portion comprising a second link capable of rotatably holding a cushion and a rotation axis of the seat back and the rear leg portion to hold the rear leg portion in a vertical state;
Retractable vehicle seat with 2. The retractable device according to claim 1, further comprising a reclining device that supports the seat back to the base frame so that the seat back can pivot in the use state, and can hold the seat back at a predetermined angle with respect to the base frame. Vehicle seat.

Images