JP3638163B2 - Car backseat - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rear seat of an automobile, and more particularly to an automobile rear seat having a seat back that can be tilted backward.
[0002]
[Prior art]
It is desirable that the rear seat of a passenger car is most comfortable for a passenger seat. However, in the case of a small car, there are large space restrictions, and it is difficult to satisfy such demand (comfort).
[0003]
In order to improve comfort in a limited space, it is effective to widen the space in front of the eyes so that the passenger can take a relaxed posture with the upper body down, so that the seat back can be tilted backward If a so-called reclining mechanism is adopted, it is considered that a rear seat that is sufficiently comfortable even in a small car can be obtained. A configuration of a rear seat that can be tilted backward based on such a viewpoint is disclosed in, for example, Japanese Utility Model Publication No. 1-21054.
[0004]
[Problems to be solved by the invention]
However, one of the reasons that small cars cannot expand the rear seat space is that the wheelbase is short. That is, because the wheel base is short, the rear seat and the rear wheel suspension device are arranged close to each other, so that they interfere with the bulge of the rear wheel house and the mounting base of the rear damper, so that sufficient comfort can be obtained. The fact was that the seat could not be tilted backwards.
[0005]
[Means for Solving the Problems]
Such a problem, that is, the rear wheel house bulge and the rear damper mounting base interfere with each other, so that the rear seat is not sufficiently comfortable, and if the rear seat is fully pushed down, the cabin and the cargo compartment are in communication. In order to solve the deterioration of the air conditioning performance , in the present invention, at least the seat back (2) having the side end fixing portion (2a) that cannot be tilted backward and the tiltable portion (2b) that can tilt backward is provided. A part of the tire wheel is disposed at a position overlapping a side surface of the tire shape portion (4) that is a portion covering the rear wheel of the rear wheel house, is inside the inner end surface of the tire shape portion, and is disposed on the rear wheel house. In the rear seat (RS) of the automobile in which the split surface (6) of the side end fixing portion and the tiltable portion is located outside the inner end surface of the integrally connected damper mounting portion (damper base 18) , Extended in the vehicle width direction A movable part that is rotatable about an axis (hinge 15) and whose upper end is brought into contact with the upper end part of the tiltable part and whose free end is rotated downward in conjunction with the backward tilting operation of the tiltable part. A rear shelf (14) provided with (14a) is provided between the upper rear surface of the seat back and the lower edge of the rear windshield (13), and a virtual cylindrical surface (C3) drawn by a rotation trajectory of the free end edge of the rear shelf. ) And the virtual cylindrical surface (C2) drawn by the rotation trajectory of the upper end edge of the retractable part (P3) and the axis (hinge axis 5) of the backward tilt center of the retractable part. The upper surface of the damper mounting portion is positioned below a virtual plane (S3) extending in the vehicle width direction .
[0006]
By doing so, the rear shelf can partition the cabin and the cargo compartment even when the retractable portion is tilted back to the maximum, so that the appearance is good and the air in the cabin does not escape when the trunk is opened and closed, thus improving the air conditioning performance.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
[0008]
FIG. 1 shows an outline of the rear seat RS side of a passenger car according to the present invention. In FIG. 1, a rear seat RS composed of a seat cushion 1 and a seat back 2 is a position where a part of the rear seat RS overlaps a side projection surface of a tire shape portion 4 that is a portion covering the rear wheel 3 of the wheel house. As shown in FIGS. 2 and 3, the side end fixing portion 2a connected to the vehicle interior surface and the retractable portion 2b that substantially supports the back of the occupant are included. The side end fixing portion 2a is fixed to the vehicle body and cannot be tilted backward, but the tiltable portion 2b is pivotally supported by the vehicle body with the hinge shaft 5 so that the predetermined angle range can be tilted backward. Yes.
[0009]
As shown in FIG. 4, the split surface 6 of the side back fixing portion 2 a of the seat back with the retractable portion 2 b is covered with a pad 7 and a skin 8. Thereby, cushioning can be imparted to the surface exposed when the tiltable part 2b is tilted backward, so that it is possible to lean against the head and to improve sound insulation. In addition, it is possible to incorporate a foldable side armrest 9 whose lower end side is pivotally supported as shown in FIG. 2 into the dividing surface 6. It can comprise so that the hollow 10 may appear in the part closed by. If it does in this way, since an elbow can be plunged into this hollow 10, the clearance around the shoulder at the time of tilting the retractable part 2b increases, and a more comfortable posture can be taken. The side armrest 9 may be connected to an armrest fixed to the inner surface of the door, or may be configured to be able to freely rotate to some extent on a horizontal plane by a ball joint (see arrow in FIG. 2). .
[0010]
Although not shown in the drawing, a lock mechanism that may be a known ratchet type or the like and a torsion bar type return spring are incorporated in the hinge shaft 5 that pivotally supports the retractable portion 2b of the seat back. As with a general reclining seat, the rearward tilt angle of the tiltable portion 2b can be adjusted as appropriate, and when the lock is released in the rearward tilted state, the tiltable portion 2b is automatically returned to the original angle by the spring force. It can come back.
[0011]
As shown in FIG. 5, the return spring 11 is divided into left and right parts and arranged symmetrically, and arms 11 a that contact the left and right ends of the back surface of the retractable part 2 b of the seat back respectively extend upward. The arms 11b that come out and come into contact with the center of the vehicle body extend toward the bottom of the floor of the cargo compartment 12 that constitutes a receiving portion for the spare tire. The mounting portion of the return spring is hidden by a spare tire cover or the like so as to be inconspicuous.
[0012]
A rear shelf 14 is provided between the rear upper edge portion of the seat back 2 and the inner lower edge portion of the rear windshield 13. The rear shelf 14 is divided into two parts in the front-rear direction along a dividing line extending in the vehicle width direction, and is connected to bendable by a hinge 15, the rear side is fixed to the vehicle body, and the front movable part 14a. Is bent downward from the dividing line following the backward tilting operation of the retractable portion 2b of the seat back. In order to prevent the locus of the upper end of the retractable portion 2b of the seat back from interfering with the locus of the movable portion 14a of the rear shelf, the upper end of the retractable portion 2b of the seat back is protruded rearward.
[0013]
By pivotally supporting the headrest 16 with an axis extending in the vehicle width direction with respect to the retractable portion 2b of the seat back, the headrest 16 is brought into contact with the movable portion 14a of the rear shelf when the tiltable portion 2b is tilted backward. It can be configured to rotate. If it does in this way, the angle adjustment of the headrest 16 will be automatically performed so that the space | interval of the head and the headrest 16 at the time of tilting the tiltable part 2b back may become appropriate. Further, if the retractable portion 2b of the seat back is divided from, for example, the center armrest mounting portion and any one of them is configured to be able to be tilted forward, it can be a trunk through.
[0014]
The side back fixing portion 2a and the retractable portion 2b of the seat back are the inner end surfaces of the damper base 18 (the lining is integrally connected) to the tire shape portion 4 of the wheel house so as to support the upper end of the damper 17 of the suspension device. When applied, it is outside the innermost surface of the damper base lining) and is divided inside the inner end surface of the tire-shaped portion 4 (innermost side surface of the wheel house lining when lining is applied). . That is, the side end fixing portion 2a and the retractable portion 2b are divided within the range indicated by the symbol A in FIGS. By doing in this way, since the effective width of the retractable part 2b can be fully expanded within the restrictions of a vehicle body structure, the living space with a margin can be obtained.
[0015]
As shown in FIG. 6, the rotation center of the retractable portion 2b of the seat back, that is, the dimension from the center of the hinge shaft 5 to the back surface of the retractable portion 2b is the radius, and the virtual circle centered on the hinge shaft 5 Fixed over the entire width of the retractable portion 2b of the seat back above the virtual plane S1 that touches the lower portion of the circumference C1 and extends in the vehicle width direction including the straight line passing through the foremost end of the damper base 18. No objects are installed. That is, since this portion (the shaded portion in FIG. 6) is a space, the retractable portion 2b can be tilted backward until the back surface of the damper base 18 comes into contact with it, so that the effective reclining space is expanded and the rear The tilt angle can be increased.
[0016]
The height position of the damper base 18 is not more than the outer periphery of the tire shape portion 4 and not more than the back surface when the retractable portion 2b is tilted to the maximum after the apex of the tire shape portion 4, and behind the apex of the tire shape portion. In this case, it is preferable that the height be equal to or less than the apex of the tire shape portion 4 (the shaded portion in FIG. 7).
[0017]
In particular, in the case of a notch-back type vehicle, as shown in FIGS. 1 to 3, a straight line L <b> 1 passing through the dividing surface 6 of the side end fixing portion 2 a and the retractable portion 2 b of the seat back and the lower edge of the rear windshield 13 A virtual vertical line L2 passing through a virtual intersection P1 where the line intersects when viewed from above is drawn, a virtual circle including the tilting trajectory of the top of the foldable part 2b as seen from the side is drawn, and the circumference C2 of this virtual circle Below the virtual plane S2 extending in the vehicle width direction, including a straight line passing through the virtual intersection P2 on the upper side of the virtual vertical line L2 and touching the lower side of the circumference C1 of the virtual circle centered on the hinge axis 5 It is preferable to position the damper base 18 at a position. As a result, the retractable portion 2b of the seat back can be brought close to the lower edge line of the rear windshield 13, thereby improving space efficiency.
[0018]
On the other hand, in the case of a wagon type vehicle, since the intersection P1 with the rear windshield 13 cannot be used as a reference, as shown in FIG. 8, the rotation trajectory of the free edge of the movable part 14a of the rear shelf as seen from the side is draw a virtual circle cylindrical surface C3, the lower side of the intersection Sasen P3, and the central axis both car hinge shaft 5 of the virtual circle cylindrical surface C2 of rotation locus of the upper edge of the variable倒部2b of the seat back 2 is drawn the damper base 18 in the vicinity or below its virtual flat surface S3 extending in the width direction may be so as to position. Needless to say, this condition also applies to a notch back type vehicle.
[0019]
By doing in this way, the height position of the damper base 18 is optimally set, the effective reclining space is expanded, and the rearward tilt angle of the retractable part 2b can be increased. In particular, by configuring as described above, the rear shelf 14 partitions the cabin and the luggage compartment even when the tiltable portion 2b is tilted backward, so that the appearance is good and the air in the cabin does not escape when the trunk is opened or closed. Will also improve.
[0020]
Is in the above-mentioned embodiment, although variable倒部2b of the seat back 2 is described as the right and left integral construction, which is equally applicable to those in which the variable倒部2b as shown in FIG. 9 are divided in right and left it can. In this case, the center armrest 19 can be provided on the central fixing portion 2c integrated with the left and right side end fixing portions 2a.
[0021]
【The invention's effect】
As described above, according to the present invention, it is possible to avoid the interference with the rear wheel suspension device, particularly the damper mounting base, and to secure the rearward tilting space of the rear seat seat back , and to maximize the folding portion. Runode can remain between was partitioned between cabin and luggage compartment even when the inclined rearwards, it is possible to obtain the great effect on increasing the comfort of the rear room.
[Brief description of the drawings]
FIG. 1 is a rear side view of a notch back type vehicle to which the present invention is applied.
FIG. 2 is a partial perspective view seen from the front of the rear seat according to the present invention.
FIG. 3 is a partial top view of a rear seat according to the present invention.
FIG. 4 is a partial horizontal sectional view of a rear seat according to the present invention.
FIG. 5 is a partial perspective view seen from the rear of the rear seat according to the present invention.
FIG. 6 is a rear seat side view for explaining the operation of the present invention.
FIG. 7 is a side view of the rear seat for explaining another operation of the present invention.
FIG. 8 is a rear side view of a wagon type vehicle to which the present invention is applied.
FIG. 9 is a perspective view of a rear seat showing another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Seat cushion 2 Seat back 3 Rear wheel 4 Tire shape part 5 Hinge shaft 6 Dividing surface 7 Pad 8 Skin 9 Side armrest 10 Recess 11 Return spring 12 Cargo compartment 13 Rear windshield 14 Rear shelf 15 Hinge 16 Headrest 17 Damper 18 Damper base 19 Center armrest

Claims (1)

At least a part of the seat back having a side end fixing portion that cannot be tilted rearward and a tiltable portion that can tilt rearward is disposed at a position that overlaps a side surface of the tire-shaped portion that covers the rear wheel of the rear wheel house. In addition, a split surface between the side end fixing portion and the retractable portion is located inside the inner end surface of the tire shape portion and outside the inner end surface of the damper mounting portion integrally connected to the rear wheel house. The back seat of the car,
The upper end of the seat back is brought into contact with the upper end portion of the seat back and the free end thereof is rotated downward in conjunction with the backward tilting operation of the tiltable portion. A rear shelf with a movable part is provided between the upper back of the seat back and the lower edge of the rear windshield,
A lower intersection line between the virtual cylindrical surface drawn by the rotation trajectory of the free end edge of the rear shelf and the virtual cylindrical surface drawn by the rotation trajectory of the upper end edge of the retractable portion, and the back tilt center of the tiltable portion A rear seat of an automobile , wherein an upper surface of the damper mounting portion is positioned below a virtual plane that includes an axis and extends in the vehicle width direction .

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