JPH11115586A - Seat back installation structure on seat for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a car body easily by using one kind of car body commonly, in the case of pivoting a seat halfway part in the seat back of 'partial turning type' for the car body and in the case of pivoting the seat back of 'entire turning type'. SOLUTION: A seat back 13 has a seat halfway part 21 and a seat side part 22 provided separately from this seat halfway part 21 and the lower end of the seat halfway part 21 is pivoted to a car body 2 by a hinge 30. A support frame 28 in which the projection end 29 projected from the lower end of the seat halfway part 21 to the outside reaches upto the near place of the inside wall 16 of a cabin 4 for constituting the car body 2 is provided. The projection end 29 of this support frame 28 is pivoted to the inside wall 16 through the hinge 30. The upper part of the seat side 22 is supported to the car body 2 and also its lower part is supported to the support frame 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat back mounting structure for an automobile seat in which a middle portion of the seat back, which constitutes a middle portion in the width direction, is reciprocally rotatable toward an upper surface side of a seat cushion. It is about.

[0002]

2. Description of the Related Art A conventional seat back mounting structure for an automobile seat is disclosed in Japanese Utility Model Laid-Open Publication No. 4-26133.

[0003] According to this, a rear seat is provided in a cabin inside a vehicle body, and this seat is provided with a seat cushion,
The seat cushion includes a seat back in a standing posture protruding upward from a rear end of the seat cushion.

The above-mentioned seat back has a middle part in the width direction, and a side part of the seat back which is provided separately from the middle part in the width direction and forms each side part in the width direction of the seat back. have. The lower end of the middle part of the seat is pivotally supported on the vehicle body by a hinge, and only the middle part of the seat is reciprocally rotatable around the hinge toward the upper surface side of the seat cushion. It is a "rotation type."

When the midway portion of the seat is turned forward, it is brought into a substantially horizontal posture and can be superimposed on the upper surface of the seat cushion. It can be used as a storage space.

Further, as for the pivotal support of the middle part of the seat to the vehicle body, more specifically, conventionally, there is a mounting structure in which the middle part of the seat is pivotally supported to a vehicle cabin floor constituting the vehicle body. .

On the other hand, a seat back is formed by integrally molding the above-described middle portion of the seat and the side portions of the seat, and a lower end of the seat back is pivotally supported on the vehicle body by another hinge. There is a type in which the seat back is reciprocally rotatable as a whole toward the upper surface side of the seat cushion, that is, a type in which the seat back is "entirely rotatable".

In the case of the above-mentioned "entire rotary type", each side portion of the seat back is located near the inner side wall of the cabin constituting the vehicle body. The seat back has a mounting structure in which the lower end is pivotally supported.

[0009]

By the way, in the above-mentioned "partial rotation type" mounting structure, the fastening hole for attaching the hinge to the vehicle body is formed in the vehicle cabin floor, while the "entire rotation type" is provided. In the above mounting structure, the other fastening hole for mounting the hinge to the vehicle body is formed in the inner wall.

Therefore, when the seat back is to be of the "partially pivoting type", a fastening hole is formed in the vehicle cabin floor, and when the seat back is to be of the "entire pivoting type". Instead of the above, it is conceivable to form a fastening hole in the inner wall. However, in this case, there is a problem that the number of types of the vehicle body increases, and the molding of the vehicle body becomes complicated.

Therefore, in order to use a single type of vehicle body for both types of seat backs, fastening holes are formed in the vehicle interior floor and the inner side wall of the vehicle body. It is conceivable to keep it. However, in this case, if the hinge is fastened to one of the passenger compartment floor and the inner side wall using a fastening hole in an attempt to make the seat back one of a kind, the other fastening holes are unnecessary. And the appearance of the cabin may be reduced. For this reason, it is required to provide a plug hole cover that covers the other fastening holes described above.
There is a problem that the number of components of the vehicle body increases and the configuration becomes complicated.

The present invention has been made in view of the above-mentioned circumstances, and it is intended to pivot a middle part of a seat in a "partially pivotable" seat back with respect to a vehicle body.
In the case of pivoting the "entire rotation type" seat back, one type of vehicle body can be used as well so that the molding of the vehicle body can be facilitated, and even in this case, It is an object to simplify the structure of a vehicle body.

[0013]

A seat back mounting structure for an automobile seat according to the present invention for solving the above-mentioned problems is provided by a seat back 1 of a seat 11 provided in a passenger compartment 4.
3 is an intermediate sheet portion 21 which constitutes an intermediate portion in the width direction.
And a seat side portion 22 provided separately from the mid-seat portion 21 and constituting each side portion in the width direction of the seat back 13. The lower end portion of the mid-seat portion 21 is hinged by a hinge 30. In an automobile seat pivotally supported by the vehicle body 2 and reciprocatingly turning (A, B) around the hinge 30 toward the upper surface side of the seat cushion 12 with the middle portion 21 of the seat being movable,

A support frame 28 is provided which projects outwardly from the lower end of the mid-seat portion 21 and whose projected end 29 reaches the vicinity of the inner wall 16 of the vehicle compartment 4 constituting the vehicle body 2. The upper end of the seat side portion 22 is supported by the vehicle body 2 and the lower portion thereof is supported by the support frame 28.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

2 to 4, reference numeral 1 denotes an automobile, and an arrow Fr indicates the front of the automobile 1.

The vehicle body 2 of the automobile 1 is supported on a running surface by front and rear wheels 3.
It has been. A door opening 7 is provided in a rear side wall 6 of the vehicle body 2.
This door opening 7 communicates the inside and outside of the vehicle compartment 4. In addition, a door 8 that allows the door opening 7 to open and close is provided.

The lower surface of the passenger compartment 4 is formed by a passenger compartment floor 9, and a rear seat 11 is provided at a rear portion of the passenger compartment 4. The seat 11 includes a seat cushion 12 supported in the vehicle cabin floor 9 and extending in the vehicle width direction, and a seat back 13 in a standing posture protruding upward from a rear end of the seat cushion 12. .

Behind the upper part of the seat back 13,
A package tray 14 is provided so as to be continuous with an upper portion of the seat back 13, and a partition wall 15 is integrally extended downward from the front edge of the package tray 14 along the rear surface of the seat back 13. I have. The package tray 14 and the partition wall 15 are made of resin, and are firmly supported by the inner side wall 16 of the side wall 6 of the vehicle body 2 that forms the surface on the vehicle compartment 4 side.

The rear of the partition wall 15 is a trunk room 17 formed inside the rear part of the vehicle body 2.
A communication opening 18 for communicating the cabin 4 and the trunk room 17 with each other is formed in the partition wall 15, and the communication opening 18 is closed by the seat back 13 so as to be openable and closable from the cabin 4 side.

The seat back 13 of the seat 11 is provided separately from the middle part 21 of the seat, which constitutes a middle part in the width direction (vehicle width direction), and is provided separately from the middle part 21 of the seat.
The seat back 13 has a pair of left and right seat side portions 22, 22 that constitute each side portion in the width direction. In order to facilitate understanding of the drawings, each of the sheet side portions 22 is shown in a satin pattern.

The mid-seat portion 21 includes a seat frame 23 framed by a metal circular pipe, and a seat pad 24 that covers the seat frame 23 and is supported by the seat frame 23. Each of the seat side portions 22 includes a seat frame 25 formed of a resin substrate and a seat pad 26 attached to the front side of the seat frame 25.

Referring to FIGS.
A support frame 28 is provided which protrudes outward from the lower end of the vehicle in the vehicle width direction. Each of the support frames 28 is formed by extending a part of the seat frame 23, and is formed of a circular metal pipe.

The protruding end 29 of each support frame 28 is
Each of the protruding ends 29 is pivotally supported on the inner wall 16 by a hinge 30, and the center of rotation 3 of each of the hinges 30 is reached.
The center of the seat 21 is reciprocated around the upper side of the seat cushion 12 (arrows A and B).
It is free.

Each of the hinges 30 includes a fixing piece 34 attached to a wheel house 33 which covers the left and right rear wheels 3 from above and forms a part of each of the inner side walls 16 by a fastening means (not shown). The rotation center 3
A pivot shaft 35 protruding on one axis, and the pivot shaft 35
And a turning piece 36 pivotally supported around the axis thereof.
Eight protruding ends 29 are fastened by fasteners 37.
In the above case, the center of rotation 31 extends in the vehicle width direction, and the axis of the circular pipe material constituting the support frame 28 is aligned with the center of rotation 31.

Each of the seat side portions 22 is connected to the inner wall 16 of the vehicle body 2 by upper and lower locking members 39,
Each is detachably supported by 40. That is,
The upper locking member 39 includes a locking hole 41 formed on each side of the package tray 14 and the sheet side portion 22.
Of the locking hole 4 projecting from the upper part of the seat frame 25.
1 and a locking piece 42 that is removably locked to the locking member 1. The lower locking member 40 is connected to the support frame 28 and the seat frame 2 below the seat side portion 22.
5 and a clip-shaped locking piece 43 which is removably locked to the support frame 28. The seat side portion 22 is detachably supported on the inner wall 16 via the locking members 39 and 40. In this case, the support frame 28 is rotatable with respect to the locking piece 43 locked thereto while sliding about its axis.

Referring to FIG. 5, the middle portion 21 of the seat back 13 is turned about the hinge 30 (A).
Then, the middle part 21 of the seat is placed in a substantially horizontal posture and can be superimposed on the upper surface of the seat cushion 12. By this superimposition, the upper part (rear surface) of the middle part 21 of the seat is positioned above the trunk room 17. The storage space communicates with the storage space, and the upper surface of the intermediate sheet portion 21 can be used as a storage surface.

When the middle part 21 of the sheet is rotated forward as described above, the support frame 28 is rotated about its axis with respect to the locking piece 43 which is locked to this, and the above-mentioned support frame 28 is rotated. The forward rotation of the sheet middle part 21 is allowed. As described above, the seat back 13 is of a "partial rotation type" in which only the middle part 21 of the seat can be reciprocally rotated while leaving the respective side portions 22.

In FIG. 1, reference numeral 45 denotes an "entire rotary type" seat back. In other words, the seat back 45 is formed by integrally forming the mid-seat portion 46 and the seat side portion 47 corresponding to the mid-seat portion 21 and the seat side portion 22 of the “partially pivotable” seat back 13. The seat back 45 has a seat frame 48 pivotally supported by the hinge 30 on the inner wall 16.

According to the above configuration, the middle portion 21 of the "partially pivotable" seat back 13 is
, The inner wall 1 near the inner wall 16
6 is pivotally supported via a hinge 30. For this reason, when trying to pivotally support the “entirely pivotable” seat back 45 in which the seat back 45 is entirely reciprocally rotatable by integrally molding the mid-seat portion 46 and each seat side portion 47. ,
The seat back 45 can be pivotally supported on the inner side wall 16 using the hinge 30 or a fastening means such as a fastening hole for fastening the hinge 30 to the side wall.

Therefore, there is a case where the mid-seat portion 21 of the "partially pivotable" seat back 13 is pivotally supported with respect to the vehicle body 2 and a case where the "entirely pivotable" seat back 45 is pivotally supported. In this case, one type of vehicle body 2 can be shared.

Further, according to the above embodiment, as shown in the above-mentioned prior art, unnecessary fastening holes and plug hole covers that cover the unnecessary fastening holes are unnecessary. Is enough.

Further, the upper portion of the seat side portion 22 is supported by the inner side wall 16 via the package tray 14 and the lower portion is supported by the support frame 28. The support frame 28 provided for pivotally supporting the seat halfway 21 is used when the seat back is supported by the vehicle, and accordingly, the mounting structure of the "partially pivotable" seat back 13 is simplified. Becomes

As described above, the support frame 28
The axial center of the circular pipe member constituting the center of the sheet coincides with the center of rotation 31 of the hinge 30, so that the sheet midway portion 2
When the hinge 1 is reciprocated about the rotation center 31 of the hinge 30, the position of the support frame 28 does not fluctuate. For this reason, the position of the seat side portion 22 supported by the support frame 28 also fluctuates. Does not occur, the halfway portion 21 can be rotated lightly, and the operability for this rotation is improved.

Although the above description is based on the illustrated example, the mid-seat portion 21 of the "partially pivoting" seat back 13 and the "entire pivoting" seat back 45 are provided on the inner side wall other than the wheel house 33. The portion 16 may be pivotally supported by a hinge 30.

[0036]

According to the present invention, the seat back of the seat provided in the passenger compartment is provided separately from the middle part of the seat constituting the middle part in the width direction of the seat, and the seat is provided separately from the middle part of the seat. A seat side portion that constitutes each side portion in the width direction of the back, and a lower end portion of the middle portion of the seat is pivotally supported on a vehicle body by a hinge, and the middle portion of the seat is centered on the hinge and the upper side of the seat cushion. In a car seat that is reciprocally rotatable toward

A support frame is provided which protrudes outward from the lower end of the middle part of the seat and whose protruding end reaches near the inner wall of the cabin constituting the vehicle body. The protruding end of the support frame is connected to the hinge. A "partially pivotable" mounting structure for the seatback is provided, which is pivotally supported on the inner wall through the above, so that only the middle part of the seat can be reciprocally rotated while leaving the side of the seat. .

In the above case, since the middle portion of the seat is pivotally supported by the hinge near the inner wall near the inner wall, the entire back of the seat can be freely reciprocated. When attempting to pivot the `` dynamic '' seat back, the seat back is attached to the inner wall using the hinge or a fastening means such as a fastening hole for fastening the hinge to the side wall. Can be pivoted.

Therefore, there are two cases, one is to pivot the middle of the seat in the "partially pivoting" seat back with respect to the vehicle body, and the other is to pivot the "entire pivoting" seat back. Thus, one type of vehicle body can be used, and the vehicle body can be easily formed.

Further, according to the present invention, as shown in the above-mentioned prior art, unnecessary fastening holes and plug hole covers that cover the unnecessary fastening holes are not required, so that the number of components of the vehicle body is reduced accordingly. Sufficiently, as described above, the structure of the vehicle body can be simplified while the vehicle body can be shared.

Further, the upper portion of the seat side portion is supported by the vehicle body, while the lower portion of the seat side portion is supported by the support frame.

For this reason, when the seat side portion is supported by the vehicle body, the support frame provided for pivotally supporting the middle portion of the seat is used. , The mounting structure of the seat back is simplified, and also in this respect, the configuration of the vehicle body can be further simplified.

[Brief description of the drawings]

FIG. 1 is an overall perspective development view.

FIG. 2 is a perspective view of a seat provided with a “partial rotation type” seat back.

FIG. 3 is a side sectional view of a seat side portion of a “partially rotating type” seat back.

FIG. 4 is a front partial sectional view of a hinge of a “partially pivotable” seat back.

FIG. 5 is an operation explanatory view of a “partially rotating type” seat back.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automobile 2 Body 4 Chamber 6 Side wall 9 Side cabin floor 11 Seat 12 Seat cushion 13 Seat back 16 Inner side wall 21 Midway seat 22 Seat side 28 Support frame 29 Projecting end 30 Hinge 31 Rotation center 45 Seat back 46 Midway seat Part 47 Seat side

Claims (1)

[Claims] 1. An intermediate seat portion in which a seat back of a seat provided in a vehicle compartment constitutes an intermediate portion in a width direction thereof, and each of the seat back portions provided separately from the intermediate seat portion in the width direction of the seat back. A seat side portion forming a side portion, and a lower end portion of the midway portion of the seat is pivotally supported on a vehicle body by a hinge, and the midway portion of the seat is reciprocated around the hinge toward an upper surface side of the seat cushion. In a flexible automotive seat, a support frame is provided which protrudes outward from a lower end portion of the middle portion of the seat and whose protruding end reaches near an inner wall of a vehicle compartment forming the vehicle body. An end of the seat is pivotally supported on the inner wall via the hinge, while an upper portion of the seat side is supported by the vehicle body and a lower portion of the seat bar is supported by the support frame. Click mounting structure.