JP2002307992A - Folding type seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding type seat capable of reducing a seat height in a folded state. SOLUTION: Respective back rest side supports 32 of a back rest part 3 consists of support frames 32a rotatably supported by a back rest frame 31 and elastic members 32b or the like attached to the support frames 32a. A net member 33 which freely stretches is tightly stretched between the respective support frames 32a to form an inner part space 34 at the back rest part 3 with the tensioned net member 33, thereby rotating the respective support frames 32a in the inner part space 34 direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foldable seat installed in an automobile or the like.

[0002]

2. Description of the Related Art Conventionally, this type of foldable seat is provided with a cushion portion and a backrest portion provided at the rear end side of the cushion portion so as to be able to be tilted back and forth. Folding sheets are known. The cushion portion and the backrest portion have urethane therein, and the urethane imparts elasticity to the upper surface of the cushion portion and the front surface of the backrest portion.

The backrest has left and right backrest side supports formed to protrude from the front surface, and the cushion has left and right cushion side supports formed to protrude from the upper surface. These backrest side supports and cushion side supports hold the sides of the seat occupant, so that the seat occupant can obtain a comfortable sitting comfort.

[0004]

However, in the foldable seat, each backrest side support is formed so as to protrude from the front surface of the backrest portion.
There is a problem that the thickness of the backrest portion is increased, and the height of the seat is increased when the backrest portion is moved forward and the seat is folded. Particularly, in the case of a seat installed in an automobile or the like, the backrest of the backrest may be used for placing articles in a state where the backrest is tilted forward, and it is preferable to reduce the height of the seat.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a foldable sheet capable of reducing the height of the sheet in a folded state. is there.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, the cushion portions 2, 20 are provided.
And a backrest part 3 provided on the rear end side of the cushion part so as to be able to tilt forward, the backrest part having a backrest side support 32 formed at the left and right ends thereof so as to protrude from the front surface thereof. Sheet 1,1
01, a backrest frame 31 for supporting the backrest side supports on the backrest portion
And a relaxable planar member (for example, a net member 33) that stretches in a state where the backrest side supports are raised is stretched between the respective backrest side supports, and in a state where the planar members are tensioned. An elasticity is given to the front surface of the backrest portion by the planar member, and an internal space 34 is defined inside the cushion portion, and when each of the backrest side supports rotates in the direction of the internal space, , Wherein the planar member is configured to relax.

According to the first aspect of the present invention, when folding the seat, the operator first rotates each backrest side support in the space direction inside the backrest portion. At this time, since the relaxable planar member relaxes and each backrest side support is received in the internal space, the rotation of each backrest side support is not hindered. In this state, the size of the backrest portion in the thickness direction becomes smaller than before rotating each backrest side support. Thereafter, the seat is folded down by moving the backrest portion forward until the cushion portion and the backrest portion come into contact with each other. Therefore, the height dimension of the sheet in the folded state can be reduced by the reduced size of the backrest portion in the thickness direction.

[0008] According to the second aspect of the present invention, in the first aspect,
In the foldable seat described above, the cushion portion has a cushion side support 22 formed at both left and right ends so as to protrude from an upper surface thereof, and the cushion portion is provided with a cushion frame 21 that supports the cushion side supports. Each of the cushion side supports is configured to rotate outward of the cushion portion.

According to the second aspect of the invention, in addition to the function of the first aspect, when folding the seat, the operator rotates each cushion side support to the outside of the cushion portion. In this state, the dimension in the thickness direction of the cushion portion is
It becomes smaller than before rotating each cushion side support. Thereafter, the seat is folded down by moving the backrest portion forward until the cushion portion and the backrest portion come into contact with each other. Therefore, the height dimension of the seat in the folded state can be reduced by the reduced thickness dimension of the cushion section in addition to the reduced thickness dimension of the backrest section. .

[0010] According to the third aspect of the present invention, the first aspect is provided.
Or the foldable seat according to 2, wherein a mounting portion 4 is provided on a back surface of the backrest portion for mounting an article in a state where the backrest portion is tilted forward.

According to the third aspect of the present invention, in addition to the function of the first or second aspect, the article can be placed on the back surface of the backrest portion when the sheet is folded, which is extremely advantageous in practical use. It is.

[0012]

1 to 4 show a first embodiment of the present invention. FIG. 1 is an external perspective view of a foldable sheet, and FIG. 2 is a schematic explanatory view of the foldable sheet. .

The foldable seat 1 is provided in an automobile, and as shown in FIG. 1, a cushion portion 2 fixed to the vehicle body floor side, and a backrest portion 3 extending substantially upward from the rear end side of the cushion portion 2 have.

As shown in FIG. 4, the inside of the cushion portion 2 is filled with urethane so that the upper surface of the cushion portion 2 is provided with elasticity. The cushion section 2 has cushion side supports 2a at both left and right ends. A pair of left and right cushion side supports 2a
Is formed so as to protrude from the upper surface of the cushion portion 2 so as to support the side portion of the seat occupant.

As shown in FIG. 2, the backrest portion 3
A backrest frame 31 serving as the skeleton, a pair of left and right backrest side supports 32 formed so as to protrude from the front surface of the backrest portion 3, and a backrest frame 31 and the backrest side supports 32, which are freely stretchable. And the net member 33. still,
In FIG. 2, for the sake of explanation, only the portion of the net member 33 stretched between the backrest side supports 32 is shown.

The backrest frame 31 is formed of a pipe-like member, and is formed in a substantially rectangular shape along the outer edge of the backrest portion 3.

Each backrest side support 32 is composed of a support frame 32a formed in a substantially U-shape, an elastic member 32b attached to the support frame 32a, and the like. Both ends of each of the pair of left and right support frames 32a are pivotally supported on one of the left and right sides of the backrest frame 31, and are rotatable toward the center of the cushion portion 3. Here, each support frame 32a is locked by a lock mechanism (not shown) in a state where each backrest side support 32 is raised.
Each elastic member 32 b is made of urethane or the like, and gives elasticity to the surface of each backrest side support 32. Also,
Each elastic member 32b is configured to rotate integrally with the backrest frame 31. The net member 33 as a planar member is tensioned as shown in FIG. 2 in a state where each backrest side support 32 is raised from the front surface of the backrest portion 3. When the net member 33 is in tension, the net member 33 provides the front surface of the cushion portion 3 with elasticity that is optimal for the comfort of the seat occupant, and the net member 33 provides an internal space 34 inside the backrest portion 3.
Is defined. In the present embodiment, the cushion frame 31 and each backrest side support 32 are covered by the net member 33.

The operation of the foldable sheet 1 configured as described above when the sheet is folded will be described.

When folding the foldable seat 1, as shown in FIG. 3, the operator first turns each backrest side support 32 toward the inside space 34. At this time, since the relaxable net member 33 relaxes and each backrest side support 32 is received in the internal space 34, the rotation of each backrest side support 32 is not hindered. In this state, the size of the backrest portion 3 in the thickness direction is smaller than before the backrest side supports 32 are rotated. Thereafter, the seat is folded by moving the backrest portion 3 forward until the cushion portion 2 and the backrest portion 3 come into contact with each other.

As described above, according to the foldable seat 1 of the first embodiment, the size of the backrest portion 3 in the thickness direction is reduced so that the seat can be folded. The height dimension of the foldable seat 1 can be reduced.

Further, according to the foldable seat 1 of the first embodiment, the thickness of the backrest portion 3 can be reduced by rotating each backrest side support 32, and the seat can be easily folded. It is.

In the first embodiment, the cushion portion 2 is filled with urethane. However, similar to the backrest portion 3, the upper surface of the cushion portion 2 is provided with elasticity by a net member. It may be something.

In the first embodiment, the foldable seat 1 is used for an automobile. However, the foldable seat 1 may be used for a vehicle other than an automobile. It may be used in a house or the like.

As shown in FIG. 5, a tray 4 on which articles can be placed may be provided on the back of the backrest 3. According to this, in addition to the operation and effect of the first embodiment,
When the sheet is folded, an article can be placed on the back surface of the backrest 3, which is extremely advantageous in practical use.

The shape and the like of the backrest frame 31 are also arbitrary, and it goes without saying that the specific detailed structure and the like can be appropriately changed.

FIGS. 6 and 7 show a second embodiment of the present invention. FIG. 6 is a front view of a cushion portion of a foldable seat. Foldable sheet 10 of the second embodiment
1 differs from the foldable seat 1 of the first embodiment in the configuration of the cushion portion. Hereinafter, the same parts as in the first embodiment are denoted by the same reference numerals as those in the first embodiment,
A second embodiment will be described.

The foldable seat 101 is provided in an automobile and has a cushion portion 20 fixed to the vehicle body floor side.
And a backrest portion 3 extending substantially upward from the rear end side of the cushion portion 20.

As shown in FIG. 6, the cushion portion 20
A cushion frame 21 serving as a skeleton thereof, a pair of left and right cushion side supports 22 formed so as to protrude from the upper surface of the cushion portion 20, a relaxable net member 23 stretched over each cushion side support 22, the cushion frame 21, and the like. have.

The cushion frame 21 is formed of a pipe-like member, and is formed in a substantially rectangular shape along the outer edge of the cushion portion 20.

Each of the cushion side supports 22 includes a support frame 22a formed in a substantially U-shape, an elastic member 22b attached to the support frame 22a, and the like. Both ends of the pair of left and right support frames 22 a are pivotally supported on one of the left and right sides of the cushion frame 21, and are rotatable outside the cushion portion 20.
Here, each support frame 22a is locked by a lock mechanism (not shown) with each cushion side support 22 raised. Each elastic member 2
2b is made of urethane or the like, and gives elasticity to the surface of each cushion side support 22. In addition, each elastic member 22
b rotates integrally with the cushion frame 21. The net member 23 as a planar member is tensioned as shown in FIG. 6 in a state where each cushion side support 22 is raised from the upper surface of the cushion portion 20. In a state where the net member 23 is in tension, the net member 23 provides the upper surface of the cushion portion 20 with optimal elasticity for the comfort of the seat occupant, and the net member 23 defines an internal space inside the cushion portion 20. It is supposed to be. Further, the net member 23 is configured to extend in a state where each cushion side support 22 is rotated to the outside of the cushion portion 20.

Regarding the configuration of the backrest section 3, the first
Since the third embodiment is the same as the first embodiment, the description is omitted here.

The folding sheet 1 constructed as described above
The operation at the time of folding the sheet at 01 will be described.

When folding the foldable seat 101, the operator first turns each backrest side support 32 toward the internal space 34 side. Next, as shown in FIG. 7, the operator rotates each cushion side support 22 to the outside of the cushion portion 20. At this time, since the net member 23 extends, the rotation of each cushion side support 22 is not hindered by the net member 23.
In this state, the dimension of the cushion portion 20 in the thickness direction becomes smaller than before the cushion side supports 22 are rotated. Thereafter, the seat is folded by moving the backrest portion 3 forward until the cushion portion 20 and the backrest portion 3 come into contact with each other.

As described above, according to the foldable seat 101 of the second embodiment, in addition to reducing the size of the backrest portion 3 in the thickness direction, the size of the cushion portion 2 in the thickness direction is reduced. The sheet is folded. Therefore,
In addition to the reduced thickness of the backrest 3,
The height dimension of the seat in the folded state can be reduced by the reduced thickness dimension of the cushion section 20.

In the second embodiment, the elastic member is provided on the upper surface of the cushion portion 20 by the net member 23. However, if the cushion side support is rotated to the outside of the cushion portion, For example, it is a matter of course that the cushion portion may be filled with urethane to give elasticity to the upper surface of the cushion portion.

In the second embodiment, the foldable seat 101 is used for an automobile. However, the foldable seat 101 may be used for a vehicle other than an automobile. It may be used in a house or the like.

Further, a tray portion on which articles can be placed may be provided on the back of the backrest portion 3. According to this, the second
In addition to the functions and effects of the embodiment, the article can be placed on the back surface of the backrest portion 3 when the sheet is folded, which is extremely advantageous in practical use.

The shape and the like of the cushion frame 21 are also arbitrary, and it goes without saying that the specific detailed structure and the like can be appropriately changed.

[0039]

As described in detail above, according to the present invention,
The height dimension of the sheet when the sheet is folded can be reduced.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a foldable sheet showing a first embodiment of the present invention.

FIG. 2 is a schematic explanatory view of a foldable sheet.

FIG. 3 is an external perspective view of the foldable seat showing a state where a backrest side support is rotated.

FIG. 4 is a front view of the foldable seat showing a state where a backrest portion is tilted forward.

FIG. 5 is a front view of a foldable seat including a mounting portion on a back surface of a backrest portion.

FIG. 6 is a front view of a cushion portion of a foldable seat according to a second embodiment of the present invention.

FIG. 7 is a front view of the foldable seat showing a state in which the cushion side support is rotated and the backrest portion is tilted forward.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Foldable seat 2 Cushion part 3 Backrest part 4 Placement part 20 Cushion part 21 Cushion frame 22 Cushion side support 31 Backrest frame 32 Backrest side support 33 Net member 34 Internal space

Claims (3)

[Claims] A backrest portion provided on a rear end side of the cushion portion so as to be capable of tilting forward,
The backrest portion is a foldable seat having left and right backrest side supports formed so as to protrude from a front surface thereof. A stretchable planar member that tensions in a state where the rest side support is raised is stretched between the respective backrest side supports, and in a state where the planar member is tensioned,
Elasticity is given to the front surface of the backrest portion by the planar member, and an internal space is defined inside the cushion portion. When each of the backrest side supports rotates in the direction of the internal space, A foldable sheet, wherein the planar member is configured to relax. 2. The cushion portion has a cushion side support formed at both left and right ends so as to protrude from an upper surface thereof, wherein the cushion portion is provided with a cushion frame that supports the cushion side supports. The foldable seat according to claim 1, wherein the side support is configured to rotate outward of the cushion portion. 3. The foldable seat according to claim 1, further comprising a mounting portion on the back surface of the backrest portion for mounting an article with the backrest portion tilted forward.