JP4154713B2 - Vehicle seat - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automobile seat mounted on a vehicle such as a passenger car, and in particular, has a seat structure capable of sliding a seating surface left and right.
[0002]
[Prior art]
Conventionally, a rear seat is disposed behind a front seat such as a driver's seat of a vehicle, and this rear seat is configured to include a seat cushion for placing a waist and a seat back for resting on the back, like the front seat. ing.
[0003]
As such a rear seat, in order to ensure stability, the seat cushion is generally fixed to the vehicle body. However, in recent years, as the functionality of the rear seat has been improved, the right and left seat portions are There is known a seat structure in which the left and right seat portions can be moved obliquely forward along slide rails (see Patent Document 1).
Furthermore, a seat structure is also known in which the seat cushion of the rear seat can be slid in the door opening direction in order to improve the ability for a physically handicapped person to get on and off the vehicle (Patent Document 2).
[0004]
[Patent Document 1]
Japanese Utility Model Publication No. 2-334321 [Patent Document 2]
Japanese Utility Model Publication No. 7-31457
[Problems to be solved by the invention]
However, in the conventional rear seats such as the above-mentioned Patent Documents 1 and 2, in which the seat can slide in the vehicle width direction, when the luggage placed on the seat cushion is unloaded from the vehicle, the door on the seat back side It is convenient to unload the luggage from the vehicle because the seat back can be pulled out of the vehicle, but to unload the luggage from the door on the opposite side, the seat cushion can slide in the direction of the opposite door. It was inconvenient because it was not configured.
[0006]
In particular, when a car is brought close to the shoulder of a heavy traffic road, it is dangerous to work on the right rear door behind the driver's seat. It is convenient to carry out, but when luggage is placed in the seat cushion behind the driver's seat, that is, the right rear seat, it is very important to remove the luggage etc. from the opposite side, that is, the door of the left rear seat It is a complicated and difficult task.
[0007]
In view of the above points, an object of the present invention is to provide an automobile seat excellent in usability and functionality with a simple configuration.
[0010]
[Means for Solving the Problems]
The vehicle seat of the present invention, each sheet body and to the seat body and a first seat cushion and the second seat cushion pivotally supported, sheet body, the first and second seat cushion Each of the seat cushions is attached to the seat body via a bracket portion having a through-hole through which the shaft passes. When the first seat cushion is accommodated in the recess, the second seat cushion is guided by the shaft and the first seat cushion is accommodated in the recess. Slide toward the seat cushion.
[0011]
In the vehicle seat of the present invention, the first seat cushion is formed symmetrically with the second seat cushion. Preferably, when the bracket portion is extended on the rear surface of the cushion body of the seat cushion and the first seat cushion is for a left seat, the bracket portion of the first seat cushion is the first seat. The cushion body is formed so as to be flush with the left side surface of the cushion body, and the width is set to half the lateral width of the cushion body.
[0012]
Preferably, the locking mechanism includes a streak-shaped guide groove and a lock piece, and the streak-shaped guide groove is formed on the shaft and has at least one widened portion formed corresponding to the fixing position of the seat cushion. The lock piece is provided on a seat cushion and has a lock shaft member and a head portion formed at the tip of the lock piece, and the lock piece head portion is formed so as to be fitted into the widened portion of the guide groove. ing.
The vehicle seat according to the present invention preferably includes a lock mechanism for restricting the rotation and sliding of the seat cushion, and the lock mechanism includes a streak-shaped guide groove and a lock piece, for example, a streak-shaped guide groove. Has at least one widened portion formed on the shaft and corresponding to the fixed position of the seat cushion, and the lock piece is provided on the seat cushion and has a lock shaft member and a head member at the tip thereof. And the head portion of the lock piece is formed so as to fit into the expanded portion of the guide groove, and the seat cushion can be rotated or slid by sliding the lock shaft member with respect to the guide groove, When the head portion is fitted to the expanding portion, the rotation and sliding of the seat cushion are locked. More preferably, a spring that biases the head of the lock piece to move toward the shaft is provided. Further, a lock release handle is provided on the seat cushion, and the head portion of the lock piece fitted in the expanded portion of the guide groove is released against the biasing force of the spring.
[0013]
Furthermore, in the vehicle seat of the present invention, the seat body is formed in a box shape with the outer shape, and the concave portion is formed from the front surface to the upper surface. Then, at least one seat back is fixedly mounted in the recess, and the seat cushion is stored on the seat back while being stored.
[0014]
According to the present invention as described above, the seat cushion rotates so as to stand up or expand with respect to the seat body, and slides in the left-right direction of the seat body.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded perspective view showing a rear seat 1 according to an embodiment of the present invention. The rear seat 1 includes a rear seat body 2 serving as a base, a pair of seat cushions 3L and 3R, and a pair of seat backs 4L and 4R. In particular, the rear seat 1 has (1) the seat cushions 3L and 3R attached to the rear seat body 2 so as to be able to be raised and lowered, and (2) attached to be slidable in the vehicle width direction. This is a feature. In FIG. 1, L means the left side of the rear seat 1, and R means the right side.
That is, as will be described in detail below, the vehicle seat of the present invention stands up in a vehicle interior in the vehicle width direction, and stands up in a non-use state and expands horizontally in a use state. And a pair of left and right seat cushions 3L and 3R attached to the shaft 6 via the respective support members 3b. The left and right seat cushions 3L and 3R rotate one seat cushion 3L. The other seat cushion 3R is configured to be able to slide toward the one seat cushion 3L when it is erected.
[0016]
First, the rear seat body 2 of this embodiment will be described. The rear seat body 2 is formed in a box shape in its outer shape, and one recess 5 is formed from the front surface to the upper surface. The depth of the recess 5 is determined by the seat cushion 3L (3R) and the seat back 4L. (4R) is set so as to coincide with the thickness when overlapping (4R), and the width of the recess 5 is set to such an extent that the two seat backs 4L, 4R can be arranged.
[0017]
The recess 5 is composed of an inclined surface 2a, a vertical surface 2b, and a horizontal surface 2c of the rear seat body 2. When the rear seat 1 is not in use, the concave surface 5a, the vertical surface 2b, and the horizontal surface 2c are used as will be described later. The seat cushions 3L and 3R and the seat backs 4L and 4R are accommodated in the defined area.
[0018]
Seat backs 4L and 4R are fixedly attached to the inclined surface 2a of the recess 5 using known fastening means such as bolts, etc., but in order to partition the area where the left and right seat backs 4L and 4R are attached, 2d is arranged at the center of the inclined surface 2a. Instead of standing the vertical wall 2d on the inclined surface 2a, one large seat back may be attached to the rear seat body 2.
Here, the seat backs 4L and 4R are attached to the rear seat body 2 so that the upper ends thereof are flush with the upper end surface of the rear seat body 2.
[0019]
Further, a shaft 6 is disposed on the rear seat body 2 so that both ends thereof are connected to the side walls 2 e and 2 f of the rear seat body 2 and become horizontal in the recess 5. The shaft 6 is a shaft that supports the seat cushions 3L and 3R, and also guides and supports the slides of the seat cushions 3L and 3R.
[0020]
Next, the seat cushions 3L and 3R will be described. 2 (A) and 2 (B) are plan views showing seat cushions 3L and 3R according to the embodiment of the present invention. Each seat cushion 3L and 3R includes a cushion body 3a having a rectangular shape on which a passenger's waist is placed, A bracket portion 3b as a support member formed to protrude from the rear surface of the cushion body 3a, and a through hole 3c formed so as to cross the inside of the bracket portion 3b and through which the shaft 6 passes.
[0021]
First, the seat cushion 3L for the left seat will be described. As shown in FIG. 2A, the bracket portion 3b is formed so that the left side surface thereof is flush with the left side surface of the cushion body 3a. As specific dimensions thereof, the width is set to about half of the lateral width of the cushion body 3a, and the right side surface of the bracket portion 3b is formed in parallel with the left side surface. The lateral width of the cushion main body 3a is set to be equal to or smaller than the lateral width of each seat back 4L, 4R.
[0022]
On the other hand, as shown in FIG. 2B, the seat cushion 3R for the right seat is formed symmetrically with the seat cushion 3L, and the bracket portion 3b of the seat cushion 3R for the right seat is the rear surface of the cushion body 3a. In the right side.
[0023]
The left and right seat cushions 3L, 3R formed in this way are attached to the rear seat body 2 through the shaft 6 through the through hole 3c formed in the bracket portion 3b.
[0024]
Incidentally, the rear seat 1 according to the embodiment of the present invention preferably includes a lock mechanism that restricts the rotation and sliding of the seat cushions 3L and 3R with respect to the shaft 6.
FIG. 3 is a perspective view showing the shaft 6 according to the embodiment of the present invention. As shown in this figure, the shaft 6 guides the rotation (development, standing) and sliding of the seat cushions 3L, 3R. A pair of streak-shaped guide grooves 6L and 6R are formed so as to pass from the shaft outer peripheral surface to the shaft inner peripheral surface.
[0025]
The guide groove 6L corresponding to the seat cushion 3L for the left seat is formed along the shaft axis, and draws an arc on a first guide portion 6L1 that guides the slide of the seat cushion 3L and a plane orthogonal to the shaft axis. The second guide portion 6L2 that guides the rotation of the seat cushion 3L, and the expanding portions 6a to 6c that are formed in a circular shape by expanding at the ends and intersections of the guide portions 6L1 and 6L2. And. Similarly to the guide groove 6L, the guide groove 6R corresponding to the seat cushion 3R for the right seat also includes a first guide part 6R1, a second guide part 6R2, and expanded parts 6a to 6c. .
As shown in the drawing, the second guide portion 6L2 for turning the left seat is disposed near the left end of the shaft, and the second guide portion 6R2 for the right seat is disposed near the right end of the shaft. Moreover, each expansion part 6a-6c is provided on the guide grooves 6L and 6R for every point which fixes the seats 3L and 3R, The number is not restricted to three, but is arbitrary.
[0026]
In the bracket portions 3b of the seat cushions 3L and 3R corresponding to the guide grooves 6L and 6R formed in the shaft 6 in this way, as shown in FIG. 4, the lock pieces 7 are arranged in the radial direction of the through holes 3c. It is attached to the through hole 3c so as to be movable. The lock piece 7 is provided with a rod-shaped lock shaft member 7a, a tip thereof, a circular head portion 7b disposed in the through hole 3c, and a base portion 7c provided at the opposite end portion. It consists of and. The thickness of the lock shaft member 7a is set to be the same as the widths of the first and second guide portions 6L1, 6L2, 6R1, and 6R2 of the shaft 6, and the head portion 7b is formed by the widened portions 6a to 6c of the shaft 6. Are set to the same size and shape as the open portions 6a to 6c.
[0027]
Further, a spring 8 is disposed between the base portion 7c of the lock piece 7 and the through hole 3c. By this spring 8, a biasing force is applied to the lock piece 7 so as to bring the head portion 7 b into contact with the inner peripheral surface of the shaft 6.
Since the locking piece 7 of the seat cushion 3L and the locking piece 7 of the seat cushion 3R are different from each other in the guide groove, the lock grooves 7L and 6R are formed in a shifted manner. The piece 7 is provided in each bracket part 3b by shifting the arrangement angle.
[0028]
Thus, in the state where the head portion 7b of the lock piece 7 provided on the bracket portion 3b is fitted in any of the expanded portions 6a to 6c of the guide grooves 6L and 6R of the shaft 6, each seat cushion 3L , 3R is restricted from rotating or sliding. In order to release such a locked state, a handle 3d is disposed on each of the seat cushions 3L and 3R.
[0029]
Specifically, the handle 3d is rotatably attached to a recess 3e provided on the side surface of the cushion body 3a of each seat 3L, 3R. The handle 3d is housed in the recess 3e in the locked state in which the head portion 7b is fitted to the expanded portions 6a to 6c, and is unlocked by lifting.
[0030]
The locking piece 7 and the handle 3d are configured to push the base portion 7c of the locking piece 7 against the urging force of the spring 8 toward the through hole 3c in conjunction with the lifting of the handle 3d. It is connected through. For example, when the interposition member is configured as a rod-shaped link member, the lock can be released by the link member moving toward the link piece 7 by the rotation of the handle 3d. Moreover, you may comprise so that the base 7c of the link piece 7 may be pulled to the through-hole 7c side using a string etc. instead of a rod-shaped link material.
[0031]
Next, a method for using the rear seat 1 according to the embodiment of the present invention will be described.
FIG. 5A is a view showing a state in which the seat cushions 3L and 3R are housed in the recess 5, and as shown in this figure, the seat cushion 3R for the right seat is the right seat in the housed state. Is stacked and accommodated on the seat back 4R. Further, the seat cushion 3L for the left seat is brought close to the left side of the rear seat 1 and overlapped on the seat back 4L in the same manner as the right seat.
[0032]
Here, when the occupant sits down on the rear seat 1, the handle 3 d is lifted to release the lock, and the seat cushions 3 </ b> L and 3 </ b> R are rotated around the shaft 6. When the lock shaft member 7a of each of the seat cushions 3L and 3R is guided by the second guide grooves 6L2 and 6R2 and enters the expanding portion 6b, the handle 3d is accommodated in the recess 3e, so that the head portion 3b of the lock piece 7 is obtained. Is engaged with the expanded portion 6b of the shaft 6 to restrict this rotation, and the seat cushions 3L and 3R are horizontally supported as shown in FIG. 5B. In this way, the passenger can sit down or put a load on each of the seat cushions 3L and 3R in a use state where the seat cushions 3L and 3R are deployed.
[0033]
Further, as shown by a solid line in FIG. 6, the seat cushion 3L for the left seat can be stood up on the seat back 4L, and the seat cushion 3R for one right seat can be developed and used.
[0034]
In such a state, the handle 3d of the seat cushion 3R can be lifted to release the lock, and the seat section 3R itself can be moved along the shaft 6. At this time, the seat 3L is overlapped on the seat back 4L in a state where the bracket 3b of the seat 3L for the left seat is brought close to the left end of the shaft 6, and therefore the seat 3R is connected to the seat 3L. It can be moved from the right side to the left side without being affected. Then, when the handle 3d is accommodated in the recess 3e when the lock shaft member 7a is guided by the first guide groove 6R1 and enters the expanded portion 6c, the head portion 3b of the lock piece 7 becomes the expanded portion of the shaft 6. The sliding movement is restricted by fitting to 6c, and the seat cushion 3R is horizontally supported in a state where it is moved to the left side as indicated by a dotted line in FIG.
[0035]
As described above, according to the rear seat 1 according to the embodiment of the present invention, if one seat 3L (3R) is accommodated, the other seat 3R (3L) slides left and right along the shaft 6. be able to.
[0036]
By providing such a slide mechanism, for example, as shown in FIG. 6, in order to unload the luggage 9 from the door opposite to the seat cushion 3R on which the luggage 9 is placed, the seat cushion 3R is moved to the opposite door. It is possible to slide in the direction, and it is possible to easily realize the movement of the luggage 9 in a generally narrow interior space.
[0037]
In particular, when the car is stopped against the shoulder of a road with heavy traffic, it is dangerous to work on the rear door side behind the driver's seat, so the luggage 9 is placed on the seat cushion 3R behind the driver's seat. When placed, the luggage 9 can be easily taken out from the door on the opposite side. In addition, if a person sitting on the seat cushion 3R operates the handle 3d of the seat cushion 3R to release the lock, the seat cushion 3R can be moved indoors with the seat cushion without raising the waist. Improves usability.
[0038]
When the rear seat 1 is not used, if the seat cushions 3L, 3R are raised on the seat backs 4L, 4R, the rear seat 1 itself becomes compact and the space for the rear seat of the vehicle can be widened. . Further, the seat cushions 3L and 3R are accommodated in the recess 5, so that the appearance of the design of the rear seat 1 during the accommodation is improved.
[0039]
The present invention can be implemented in various forms without departing from the spirit of the invention. For example, in the above description, the configuration in which the two seat cushions 3L and 3R of the rear seat 1 are both slidable to the left and right is exemplified. 6 may be attached.
Furthermore, in the above configuration example, the case where the vehicle seat includes the box-shaped seat body 2 is illustrated, but the vehicle seat may be configured without the seat body 2. For example, the shaft 6 is pivotally supported on the vehicle body so that the shaft 6 is held horizontally in the vehicle interior of the vehicle, and the seat cushions 3L and 3R are supported on the shaft 6 via bracket portions 3b as support members. It can also be configured to be attached.
Further, in the above description, the case where the present invention is configured as a rear seat is illustrated, but it is needless to say that the present invention may be configured as a front seat.
[0040]
【The invention's effect】
As described above, according to the present invention, the seat can be slid to the left and right, so that convenience and safety can be greatly improved in scenes such as shopping and child care.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a rear seat according to an embodiment of the present invention.
FIGS. 2A and 2B are plan views showing a seat cushion according to an embodiment of the present invention, respectively.
FIG. 3 is a perspective view showing a shaft according to an embodiment of the present invention.
FIG. 4 is a schematic end view showing a connection configuration example of a bracket portion and a shaft according to the embodiment of the present invention.
FIG. 5A is a perspective view showing a non-use state of a rear seat in the embodiment of the present invention, and FIG. 5B is a perspective view showing a use state.
FIG. 6 is a perspective view showing another example of use of the rear seat according to the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rear seat 2 Rear seat main body 2a Inclined surface 2b Vertical surface 2c Horizontal surface 2d Vertical wall 2e, 2f Side wall 3L, 3R Seat cushion 3a Cushion main body 3b Bracket part 3c Through-hole 4L, 4R Seat back 5 Recess 6 Shaft 6L, 6R Guide groove 6L1, 6R1 1st guide part 6L2, 6R2 2nd guide part 6a-6c Expansion part 7 Lock piece 7a Lock shaft member 7b Head part 7c Base part 8 Spring 9 Luggage

Claims (9)

A vehicle seat comprising a seat body, and a first seat cushion and a second seat cushion that are rotatably supported by the seat body,
The seat body includes a recess for housing the first and second seat cushions, and a shaft held horizontally in the recess,
Each of the seat cushions is attached to the seat main body via a bracket portion having a through-hole through which the shaft passes, and stands or expands with respect to the seat main body by rotating around the shaft, or When the first seat cushion stands and is accommodated in the recess, the second seat cushion is guided by the shaft and can slide to the first seat cushion side. Vehicle seat. The vehicle seat according to claim 1 , wherein the first seat cushion is formed symmetrically with the second seat cushion. The bracket portion extends to the rear surface of the cushion body of the seat cushion;
When the first seat cushion is for the left seat, the bracket portion of the first seat cushion is formed so as to be flush with the left side surface of the cushion body of the first seat cushion. The vehicle seat according to claim 2 , wherein the width is set to approximately half of the lateral width of the cushion body. The vehicle seat according to any one of claims 1 to 3 , further comprising a lock mechanism for restricting rotation and sliding of the seat cushion. The locking mechanism includes a streak-shaped guide groove and a locking piece;
The streak-shaped guide groove has at least one widened portion formed in the shaft so as to correspond to a fixed position of the seat cushion, and the lock piece is provided in the seat cushion and is provided with a lock shaft. Having a member and a head portion formed at the tip, the head portion of the lock piece is formed to fit into the widened portion of the guide groove,
When the lock shaft member is slid with respect to the guide groove, the seat cushion can be rotated or slid, and when the head portion is fitted to the expansion portion, the seat cushion is rotated and slid. The vehicle seat according to claim 4 , wherein the vehicle seat is locked. The vehicle seat according to claim 5 , wherein a spring that biases the head portion of the lock piece to move toward the shaft is provided. The seat cushion is provided with a handle for unlocking, and the head portion of the lock piece fitted in the expanded portion of the guide groove is released against the biasing force of the spring. The vehicle seat according to claim 6 . The vehicle seat according to any one of claims 1 to 7 , wherein the seat body is formed in a box shape, and the concave portion is formed from a front surface to an upper surface thereof. In the recess, fixedly attached at least one seat back, and wherein the seat cushion is accommodated overlying the said seat back when stored, any one of claims 1 to 8 The vehicle seat described in 1.

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