JPH0761264A - Rear seat cushion fitting structure - Google Patents

Abstract

PURPOSE:To improve the assembling work performance of a rear seat cushion without increasing the cost of a rear seat back tilting hinge. CONSTITUTION:A rear seat cushion supporting wire 26 fitted to a rear seat cushion frame has a wide part 26A and a narrow part 26B. A rear seat back tilting hinge 30 fixed to a floor panel is provided with flange parts 30B formed at the lower end parts of a support 30A, and the upper part of the support 30A is provided with a hinge shaft 34. A rear seat back fitting bracket 36 is rotatably supported to the hinge shaft 34. The narrow part 26B of the rear seat cushion supporting wire 26 is engaged with the support 30A of the rear seat back tilting hinge 30 from the rear of a body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for a rear seat cushion in a vehicle seat.

[0002]

2. Description of the Related Art Conventionally, there has been known a rear seat cushion mounting structure for preventing the rear end portion of the rear seat cushion from being lifted up or the rear seat cushion from moving forward when the vehicle suddenly decelerates. An example is shown in Japanese Utility Model Laid-Open No. 57-184029.

As shown in FIG. 6, in this rear seat cushion mounting structure, a rear seat back tilting hinge 72 is mounted on a side member 70 of the vehicle body, and a hook portion 72A is provided below the rear seat back tilting hinge 72.
Are formed. The hook portion 72A extends toward the rear of the vehicle body, and a loop-shaped locking piece 76 fixed to the rear portion of the rear seat cushion 74 is engaged from the rear of the vehicle body. Therefore, the rear seat cushion 74
The upward movement of the rear end portion 74A or the forward movement of the rear seat cushion 74 is prevented by the engagement between the locking piece 76 and the hook portion 72A.

[0004]

However, in this mounting structure for the rear seat cushion, since it is necessary to form the hook portion 72A on the rear seat back tilting hinge 72, the shape of the rear seat back tilting hinge is complicated and the cost is increased. Become. When the rear seat cushion 74 is attached to the vehicle body, the locking piece 76 is inserted below the rear seat back tilting hinge 72 and then moved forward to engage the hook portion 72A. Therefore, the hook portion 7
Since the engagement direction of 2A is from the lower side of the vehicle body in the direction opposite to the mounting direction of the rear seat cushion 74, the workability of assembling the rear seat cushion is not good.

In view of the above facts, it is an object of the present invention to provide a rear seat cushion mounting structure capable of eliminating the cost increase of the rear seat back tilting hinge and improving the workability of assembling the rear seat cushion. .

[0006]

According to a first aspect of the present invention, there is provided a rear seat cushion mounting structure, which comprises a pillar standing upright from a vehicle body and a shaft supporting portion provided on the pillar to pivotally support a seat back. A hinge for tilting the rear seat back,
And a rear seat cushion support wire having a loop portion that is provided on the rear seat cushion and that circulates around the pillar.

According to a second aspect of the present invention, there is provided a rear seat cushion mounting structure according to the first aspect, wherein the pillar has a rear seat back fixing portion having a vehicle width direction dimension larger than that of the pillar. Is pivotally supported, and the rear seat back is pivotally supported by the post through the rear seat back fixing portion, and the rear seat cushion support wire is formed on the wide portion wider than the rear seat back fixing portion and on the rear portion of the wide portion. A narrow portion that straddles the pillar and is narrower than the rear seat back fixing portion.

[0008]

In the mounting structure for a rear seat cushion according to claim 1 of the present invention, when the rear seat cushion is going to move forward, the loop portion of the rear seat cushion supporting wire is attached to the pillar of the rear seat back tilting hinge from the rear of the vehicle body. Since they are engaged, the forward movement of the rear seat cushion can be prevented. Further, since it is not necessary to form a hook portion on the rear seat back tilting hinge, it is possible to eliminate the cost increase of the rear seat back tilting hinge. Further, at the time of assembling the rear seat cushion, the rear seat cushion support wire may be covered on the pillar and the pillar may be inserted into the loop portion, so that the workability of assembling the rear seat cushion can be improved.

Further, in the rear seat cushion mounting structure according to the second aspect of the present invention, when the rear seat cushion is assembled, the rear seat cushion supporting wire is passed through the rear seat back fixing portion at the wide portion and then moved forward. Thus, the narrow portion can be engaged between the flange portion of the column of the rear seat back tilting hinge and the rear seat back fixing portion. Therefore, the narrow portion of the rear seat cushion support wire can be engaged with the support post of the rear seat back tilting hinge from the upper side of the vehicle body in the same direction as the mounting direction of the rear seat cushion, so that the workability of assembling the rear seat cushion can be improved. At the same time, displacement of the rear seat cushion in the vehicle width direction can be suppressed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a rear seat cushion mounting structure of the present invention will be described with reference to FIGS. In addition,
In the figure, the arrow FR indicates the front direction of the vehicle body, and the arrow UP indicates the upward direction of the vehicle body.

As shown in FIG. 4, a rear seat cushion 10 according to the present embodiment comprises a rear seat cushion pad 12 and a rear seat cushion frame 14 made of a wire embedded in the rear seat cushion pad 12 by integral foaming. Has been done.

A fixed bracket 16 made of wire is attached to the front portion 14A of the rear seat cushion frame 14 at a position in front of a substantially central portion of the seating position 12A of the rear seat cushion pad 12. These fixing brackets 16 are used for the rear seat cushion pad 12
Hole 2 projecting downward from the U-shape and formed in a cross member 19 connected to the floor panel 18
It is adapted to be inserted into a resin holder 22 fitted to 0 and fixed by a hook (not shown) in the resin holder 22.

On the rear portion 14B of the rear seat cushion frame 14, a wire 24 bent in a substantially U shape is attached at a position rearward of a substantially central portion of the seating position 12A of the rear seat cushion pad 12. The wire 24 is extended in an arc shape toward the upper rear side of the vehicle body so as not to interfere with the lower portion of the seat back when the seat back is rotated. These wires 24 are inserted into the lower part of the rear seat back, and prevent the rear portion of the rear seat cushion 10 from rising.

A rear seat cushion support wire 26 is attached to the rear portion 14B of the rear seat cushion frame 14 at a substantially central portion in the vehicle width direction.

As shown in FIG. 3, the rear seat cushion support wire 26 has a rear portion bent into a substantially U-shape, and the opening side of the U-shape is the rear seat cushion frame 14.
Is fixed to the rear seat cushion frame 14 to form a closed loop. In the rear seat cushion support wire 26, the U-shaped opening side has the wide portion 2
6A, and a narrow portion 26B having an opening width W2 narrower than the opening width W1 of the wide portion 26A is formed on the bottom side of the U-shape.

As shown in FIG. 4, a rear seat back tilting hinge 30 as a shaft support is fixed to the rear of the rear seat cushion mounting portion of the floor panel 18 in the vehicle width direction substantially central portion.

As shown in FIG. 1, the post 30A of the hinge 30 for tilting the rear seat back has a U-shaped cross section as viewed from above with its opening facing forward.

As shown in FIG. 2, the pillar 30A of the rear seat back tilting hinge 30 has a front portion that gradually widens downward and a rear portion that is substantially central in the vertical direction.
Only the portion from C to the lower side is gradually widened downward.

As shown in FIG. 1, a flange portion 30B is formed in a triangular shape along the U-shaped outer periphery at the lower end portion of the column 30A of the rear seat back tilting hinge 30, and the three corners of the flange portion 30B are formed. A through hole 32 is formed in this. In addition, the rear seat back tilting hinge 3
0 is fixed to the floor panel 18 (see FIG. 4) by bolts (not shown) inserted in these through holes 32.

As shown in FIG. 2, a hinge shaft 34 is provided along the vehicle width direction above the column 30A of the rear seat back tilting hinge 30, and the hinge shaft 34 is provided.
A rear seat back mounting bracket 36 is rotatable around the hinge shaft 34 (direction of arrow A in FIG. 1). The rear seat back mounting bracket 36 is composed of a pair of left and right symmetrical L-shaped brackets 38 and 40. The left and right split type rear seat backs are fixed to the pair of L-shaped brackets 38 and 40, respectively. It has become.

The hinge shaft 34 passes through one of the pieces 38A and 40A of the L-shaped brackets 38 and 40, respectively. Further, the pieces 38A and 40A are respectively formed with claw portions 42, and these claw portions 42 engage with the upper end edge portion of the column 30A of the hinge 30 for tilting the rear seat back, whereby the L-shaped bracket is formed. The stop positions on the rear side of the vehicle body of 38 and 40 are determined.

Through-holes 44 are formed in the other pieces 38B, 40B of the L-shaped brackets 38, 40 as the rear seat back fixing portions, respectively.
A left-right split type rear seat back is fixed to each of the L-shaped brackets 38, 40 by a bolt (not shown) inserted in 4.

As shown in FIG. 1, the narrow portion 26B of the rear seat cushion support wire 26 has a substantially central portion 30 in the vertical direction of the column 30A of the hinge 30 for tilting the rear seat back.
It is engaged with the vicinity of the lower side of C from the rear of the vehicle body.

As shown in FIG. 3, the opening width W2 of the narrow portion 26B of the rear seat cushion support wire 26 is slightly wider than the width T1 of the support pillar 30A of the rear seat back tilting hinge 30, and the narrow width portion 26B extends to the support pillar 30A. In the engaged state, the rear seat cushion support wire 26 hardly moves in the vehicle width direction.

Further, the rear seat cushion supporting wire 2
The opening width W2 of the narrow portion 26B of 6 is the bracket 3 for mounting the rear seat back of the hinge 30 for tilting the rear seat back.
It is narrower than the width T2 of 6 (see FIG. 2).

Further, the opening width W1 of the wide portion 26A of the rear seat cushion support wire 26 is wider than the width T2 (see FIG. 2) of the rear seat back mounting bracket 36 of the rear seat back tilting hinge 30. The bracket 36 can pass through the wide portion 26A of the rear seat cushion support wire 26.

Next, the operation of this embodiment will be described. In the mounting structure of the rear seat cushion of this embodiment, when the rear seat cushion 10 tries to move to the front of the vehicle body, the narrow portion 26 of the rear seat cushion support wire 26 is provided.
B is a column 30A of the hinge 30 for tilting the rear seat back.
Since the rear seat cushion 10 is engaged with the rear seat cushion, the rear seat cushion 10 can be prevented from moving forward. Further, in the rear seat cushion attachment structure of the present embodiment, it is not necessary to form a hook portion on the rear seat back tilting hinge 30, so that the cost of the rear seat back tilting hinge 30 can be eliminated.

When the rear seat cushion is assembled, the rear seat cushion support wire 26 is attached to the wide portion 26.
At A, the rear seat back mounting bracket 36 of the rear seat back tilting hinge 30 can be passed through and then moved forward to engage the narrow portion 26B with the support column 30A of the rear seat back tilting hinge 30.

Therefore, the narrow portion 26B of the rear seat cushion support wire 26 can be engaged with the support 30A of the rear seat back tilting hinge 30 from above the vehicle body in the same direction as the mounting direction of the rear seat cushion 10, so that the rear seat cushion 10 is assembled. It is possible to improve workability.

Further, in this embodiment, the rear seat cushion support wire 26 has the rear seat back tilting hinge 30.
Since the rear seat cushion 10 is not completely fixed to the rear seat cushion, the rear end portion of the rear seat cushion 10 can be slightly moved, and work such as seat cover replacement can be performed without removing the rear seat back.

Further, in the present embodiment, the opening width W2 of the narrow portion 26B of the rear seat cushion support wire 26 is slightly wider than the width of the column 30A of the rear seat back tilting hinge 30, and the narrow portion 26B is located above and below the column 30A. Direction central part 3
The rear seat cushion 10 hardly moves in the vehicle width direction when it is engaged with 0C. Therefore, the positional displacement of the rear seat cushion 10 and the rear seat back in the vehicle width direction is unlikely to occur.

As shown in FIG. 5, urethane 27 is attached to the outer peripheral portion of the rear seat cushion support wire 26, and the urethane 27 is used as a cushioning material, whereby the rear seat cushion support wire 26 and the rear seat back tilting hinge 30 are provided. You may make it reduce the contact sound with the support | pillar 30A. Similarly, urethane 2 is attached to the outer peripheral portion of the wire 24.
7 may be attached to reduce the contact noise with the vehicle body.

In this embodiment, the rear seat cushion support wire 26 is provided with the wide width portion 26A and the narrow width portion 26B. Instead, however, the rear seat cushion support wire 26 does not have the narrow width portion 26B. It may be a closed loop having a V shape, a V shape, a U shape, or the like.

[0034]

In the rear seat cushion mounting structure according to the first aspect of the present invention, the rear seat back is tilted, which has a pillar that is erected from the vehicle body and a pivotal support portion that is provided on the pillar and pivotally supports the seat back. Since the hinge and the rear seat cushion support wire provided on the rear seat cushion and having a loop portion that circulates around the column are provided, the cost for the rear seat back tilting hinge is eliminated and the workability of assembling the rear seat cushion is reduced. It has an excellent effect that it can be improved.

According to a second aspect of the present invention, there is provided a rear seat cushion mounting structure according to the first aspect, wherein the support column has a rear seat back fixing portion having a vehicle width direction dimension larger than that of the support column. The rear seat back is pivotally supported, and the rear seat back is pivotally supported to the strut through the rear seat back fixing portion, and the rear seat cushion supporting wire straddles the strut formed at the wide portion wider than the rear seat back fixing portion and the rear portion of the wide portion. In addition, since it is configured to have a narrow portion that is narrower than the rear seat back fixing portion, it is possible to eliminate the cost increase of the rear seat back tilting hinge and to improve the workability of assembling the rear seat cushion. Have the effect.

[Brief description of drawings]

FIG. 1 is a perspective view of a mounting structure for a rear seat cushion according to an exemplary embodiment of the present invention, as viewed obliquely from the front of a vehicle body.

FIG. 2 is a front view showing a rear seat back tilting hinge of the rear seat cushion attachment structure of the embodiment of the present invention.

FIG. 3 is a plan view showing a rear seat cushion support wire of a rear seat cushion mounting structure according to an embodiment of the present invention.

FIG. 4 is an exploded perspective view of a rear seat cushion to which a rear seat cushion mounting structure according to an embodiment of the present invention is applied.

FIG. 5 is a plan view showing a rear seat cushion support wire of a rear seat cushion mounting structure according to another embodiment of the present invention.

FIG. 6 is a perspective view showing a mounting structure for a rear seat cushion according to a conventional example, as viewed from diagonally front of the vehicle body.

[Explanation of symbols]

 10 Rear Seat Cushion 14 Rear Seat Cushion Frame 18 Floor Panel 26 Rear Seat Cushion Support Wire 26A Wide Part 26B Narrow Part 30 Rear Seat Back Tilt Hinge (Axis Support) 30A Strut 36 Rear Seat Back Mounting Bracket 38 L-shaped Bracket 38B Piece (Rear Seat Back Fixed part) 40 L-shaped bracket 40B piece (rear seat back fixed part)

Claims (2)

[Claims] 1. A rear seat back tilting hinge having a pillar standing upright from a vehicle body, and a pivotal support portion provided on the pillar to pivotally support a seat back, and a loop portion provided on a rear seat cushion and surrounding the pillar. A rear seat cushion support wire having: and a rear seat cushion mounting structure comprising: 2. A rear seat back fixing portion having a vehicle width direction dimension larger than that of the strut is pivotally supported on the strut, and the rear seat back is pivotally supported on the strut via the rear seat back fixing portion, and the rear seat cushion support is provided. The wire has a wide part that is wider than the rear seat back fixing part,
The rear seat cushion mounting structure according to claim 1, further comprising: a narrow portion that is formed at a rear portion of the wide portion and that straddles the pillar and is narrower than the rear seat back fixing portion.