JP2001146124A - Seat device for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the appearance of a seat cushion of a seat on a floor panel, and form the seat cushion so that a top surface thereof is positioned in a nearly horizontal attitude and that small loads can be placed thereon when the seat cushion is positioned in a housing attitude, and house the seat in compact. SOLUTION: A seat cushion 9 is provided with a cushion main body 28 forming an intermediate part and a rear part in the longitudinal direction of the seat cushion 9, and a cushion bent part 29 forming a front end of the seat cushion 9 and bent so as to be projected forward and downward from the front end of the seat cushion main body 28. A seat leg 11 is turned upward B and while the seat cushion 9 is turned downward A so that the cushion main body 28 of the seat cushion 9 is placed on a seat support part 15 so that the cushion bent part 29 is positioned near the front part of a vertical wall part 16 of the support part 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat apparatus for an automobile having a seat provided on a floor panel of a vehicle body and capable of being folded and stored.

[0002]

2. Description of the Related Art A conventional seat device for an automobile is disclosed in Japanese Patent Laid-Open No. 6-219198.

According to the above-mentioned publication, a seat is provided on a floor panel of a vehicle body, and the seat is supported by the floor panel so as to be movable downward so that an occupant can be seated thereon; An upper end is pivotally supported by the seat cushion so that a lower end thereof extends vertically below the seat cushion so that a lower end thereof can be pivoted upward to a position near the lower surface of the seat cushion. And a seat leg supported on the panel.

[0004] The seat cushion has substantially the same thickness at each part and is generally thin so that the seat is lighter in weight.

[0005] In the "normal posture" of the seat in which the seat cushion is supported on the floor panel by the seat legs, the upper surface of the seat cushion is inclined upward at a small elevation angle, so that the seat is in a normal posture. An occupant sitting on the cushion is prevented from unexpectedly sliding forward on the upper surface, and a good sitting state is maintained.

On the other hand, if the seat leg is rotated upward and the seat cushion is moved downward to support the seat cushion on the floor panel,
The seat is placed in a "storage posture", in which case the upper surface of the seat cushion is made substantially horizontal so that it can be used for placing parcels, and the seat occupies a small space and is stored compactly. You.

[0007]

By the way, in the above-mentioned conventional technique, the seat cushion has a thin shape as a whole, so that the appearance of the seat tends to be lower than that of the seat cushion having a thick shape.

In view of this, the front end of the seat cushion is bent forward and downward so that the thickness of the seat cushion, when viewed from the front, can be made thicker to improve its appearance. Can be considered.

However, if the front end of the seat cushion is simply bent as described above, the lower end of the bent portion comes into contact with the floor panel when the seat is in the "storage posture", and the upper surface of the seat cushion is raised. There is a possibility that the sheet cannot be placed on a substantially horizontal surface and the sheet cannot be stored compactly.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and improves the appearance of a seat cushion in a seat on a floor panel and, when the seat cushion is set to a "retracted posture", It is an object of the present invention to make the upper surface of the seat cushion substantially horizontal so that the seat cushion can be used for placing small packages and that the seat can be stored compactly.

[0011]

The vehicle seat apparatus of the present invention for solving the above-mentioned problems is as follows.

According to the first aspect of the present invention, the seat 7 provided on the floor panel 2 of the vehicle body 1 has its rear end pivotally supported by the floor panel 2 so that the front end can pivot downward A. Cushion 9 that allows the user to sit on
The upper end is pivotally supported by the seat cushion 9 so that the lower end thereof extends vertically below the seat cushion 9 so that the lower end of the seat cushion 9 can rotate upward B to a position near the lower surface of the seat cushion 9. And a seat leg 11 for supporting the seat cushion 9 on the floor panel 2 by

The floor panel 2 supports the seat cushion 9 together with the seat legs 11, a seat support 15, a vertical wall 16 extending downward from the front end of the seat support 15, and a vertical wall 16. The occupant 4 extending forward from the extension end of the portion 16 and sitting on the seat cushion 9
A seat device for an automobile, comprising: a footrest portion 17 that allows the foot 4a to be placed on the vehicle.

The seat cushion 9 forms a front and rear portion of the cushion main body 28, which forms a middle part and a rear part of the seat cushion 9 in the front-rear direction, and protrudes forward and downward from the front end of the cushion main body 28. And a cushion bending portion 29 that bends to

When the seat leg 11 is rotated upward B and the seat cushion 9 is rotated downward A, and the cushion body 28 of the seat cushion 9 is placed on the seat support portion 15, the vertical wall The cushion bending portion 29 is located near the front of the portion 16.

According to a second aspect of the present invention, in addition to the first aspect, the seat cushion 9 includes a pair of left and right seat side frames 21 and 21 extending in the front-rear direction. In a vehicle seat device provided with a plurality of cross members 22 and 23 to be connected,

Of the plurality of cross members 22 and 23, a part of the cross members 22 is
9 and all other cross members 2
3 is disposed at the rear of the cushion body 28.

The invention of claim 3 is the invention of claim 1 or 2
In addition to the above invention, the bracket 3 in which the pivotal support 10 projects downward from the lower surface side of the cushion main body 28.
2 and a pivot shaft 33 for pivotally supporting the seat leg 11 on the bracket 32. When the seat leg 11 is rotated upward B and the seat cushion 9 is rotated downward A, the cushion body Numeral 28 is supported on the seat supporting portion 15 via the bracket 32.

According to a fourth aspect of the present invention, in addition to any one of the first to third aspects, the seat cushion 9 is provided.
And a seat side cover 35 that covers the space between the cushion body 28 and the cushion bending portion 29 in a side view of the seat 7 and covers the seat leg 11 from the outside. The seat side cover 35 is attached to the seat leg 11 so that the seat side cover 35 rotates upward B together with the seat leg 11.

[0020]

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

In FIGS. 1 to 3, reference numeral 1 denotes a vehicle body of an automobile, and an arrow Fr indicates a front side thereof.

The vehicle body 1 is provided with a floor panel 2, and a space above the floor panel 2 is defined as a vehicle compartment 3, and a seat device 5 is provided for enabling the occupant 4 to sit in the vehicle compartment 3. The seat device 5 includes a seat 7 provided on the floor panel 2 so that the occupant 4 can sit in a forward posture.

In the "normal posture" of the seat 7, which allows the occupant 4 to sit down, the seat 7 extends in the front-rear direction, and its rear end portion is capable of rotating downward at the front end and returning. A seat cushion 9 pivotally supported by the pivot panel 8 on the floor panel 2 so that the occupant 4 can be seated thereon, and extends vertically below the seat cushion 9 so that a lower end portion thereof is positioned near the lower surface of the seat cushion 9. The upper end is pivotally supported by a pair of front and rear pivotal supports 10 on the lower surfaces of the left and right sides of the seat cushion 9 so as to be able to rotate upward B and return. 2 and a pair of left and right seat legs 11, 11 supported on
The seat cushion 9 projects upward from the rear end side of the seat cushion 9.
And a reclining mechanism 13 for pivotally supporting the upper end of the seat back 12 on the floor panel 2 so as to be able to rotate forward and downward C and return. ing.

In the seat 7 in the "normal posture", the occupant 4 is seated on the seat 7 by sitting on the seat cushion 9 and resting on the seat back 12 and adjusting the backrest angle by the reclining mechanism 13. It is possible.

The floor panel 2 is located below the seat 7 and supports a seat cushion 9, a seat leg 11, and a seat back 12 of the seat 7, and a seat support portion 15 of the seat cushion 9 in the front-rear direction. The above-mentioned sheet support portion 15 which is located at substantially the same position as the front end portion
Vertical wall portion 16 integrally extending downward from the front end of
And a foot rest portion 17 extending integrally from the extending end of the vertical wall portion 16 toward the front so that the foot 4a of the occupant 4 seated on the seat 7 can be placed.

The seat cushion 9 is formed by a frame of a pipe material having a circular cross section.
Is provided with a seat cushion frame 20 which constitutes the skeleton. The seat cushion frame 20 includes a pair of left and right seat side frames 21 and 21 which form left and right sides of the seat cushion 9 and extend in the front-rear direction.
A plurality (a pair of front and rear) of cross members 22 and 23 are provided for connecting the first and second members 21 to each other.

The seat cushion 9 includes a plurality of S-shaped spring cushions 24 which are provided on the left and right seat side frames 21 and 21 in a state where a tensile force is applied thereto, and which are made of S-shaped springs. A pad 25 is provided to cover the frame 20 and the cushioning material 24 from outside thereof and to be supported by them.

The front, rear, left and right portions of the seat cushion 9 have substantially the same thickness, so that the seat cushion 9 has a thin overall shape, thereby reducing the weight.

The seat cushion 9 has a middle part and a rear part in the front-rear direction, and the upper surface thereof extends substantially flat in the front-rear and left-right directions, and is inclined upward at a small elevation angle. Seat cushion 9
And a cushion bent portion 29 which is bent from the front end of the cushion main body 28 toward the front and downward while projecting in an arc shape.

Of the plurality of cross members 22, 23, the front cross member 22 which is a part of the cross members
Are disposed at the front end of the cushion bent portion 29, that is, the cross members 22 integrally connect the front ends of the left and right seat side frames 21 and 21 constituting the front end of the cushion bent portion 29 to each other. Let me. The rear cross member 23, which is all the other cross members, is disposed at the rear of the cushion main body 28, that is, each of the left and right seat side frames 21 and 21 constituting the rear of the cushion main body 28. The rear ends of the cross members 23 are integrally connected to each other.

Each of the seat legs 11 is formed by bending a pipe having a circular cross section, and has a substantially U shape in a side view.

Each pivot support 10 includes a sheet metal bracket 32 attached to each seat side frame 21 so as to project downward from the lower surface of each of the left and right sides of the cushion body 28 of the seat cushion 9. And a pivot shaft 33 for pivotally supporting the upper end of the seat leg 11 corresponding to each of the brackets 32.

1 to 4, the seat back 12
The thickness of each of the upper, lower, left and right portions is made substantially uniform, and the whole is formed into a thin flat plate shape. When the seat back 12 is rotated forward and downward C by the reclining mechanism 13, the seat back 12 can be overlapped so as to entirely contact the upper surface of the cushion body 28 of the seat cushion 9 (FIG. 4).

The cushion body 28 is disposed on each of the left and right sides of the seat cushion 9 and is viewed from the side of the seat 7.
A triangular space sandwiched in the front-rear direction by the cushion bent portion 29 and a seat side cover 35 made of resin are provided to cover the seat legs 11 from outside. The seat side cover 35 is attached to the seat leg 11 by a fastener 36 which is a fastener.
It can rotate upward B around 0 and can move backward.

As shown by the solid lines in FIGS. 1 to 3, when the seat leg 11 projects downward from the lower surface of the cushion body 28 in the "normal posture" of the seat 7, The state is held by an elastic urging force. On the other hand, as shown by the alternate long and short dash line in FIG. 3 and FIG. A spring urging means 37 for holding the state of the seat leg 11 with an elastic urging force when the upper leg B is rotated upward.
Is provided.

As shown in FIG. 4, the seat legs 11
Is rotated upward B and the seat cushion 9 is rotated downward A, and the cushion body 28 of the seat cushion 9 is placed on the seat support portion 15, the seat 7 is set to the "storage posture". You.

According to the above configuration, the seat cushion 9 constitutes a cushion main body 28 forming a middle part and a rear part in the front-rear direction, and the front end of the seat cushion 9 forms a front lower part from the front end of the cushion main body 28. And a cushion bending portion 29 which bends so as to protrude toward the front.

For this reason, even when the thickness of the seat cushion 9 is made thinner as a whole to reduce the weight, particularly when the seat cushion 9 is viewed from the front side thereof, the cushion bending portion 29 is formed. Is provided, the thickness of the seat cushion 9 looks thick.

Therefore, the appearance of the seat cushion 9 is improved as compared to a case where the seat cushion 9 is simply made flat and looks thin as a whole.

When the seat 7 is set in the "retracted posture" as described above, the upper surface of the cushion body 28 of the seat cushion 9 is made substantially horizontal, so that it can be used for placing small packages. The seat 7 has a small occupied space and is stored compactly. Further, when the seat back 12 is superimposed on the upper surface of the cushion main body 28 of the seat cushion 9 in the "storage posture" as described above, the seat 7 is stored more compactly. Further, at this time, the upper surface of the seat back 12 is made substantially horizontal, and is flush with the upper surface of a floor decorative panel 39 provided to cover the floor panel 2 from above the rear of the seat 7. It is said that the space for placing luggage can be made large.

When the seat 7 is in the "storage posture", the cushion bending portion 29 is located near the front of the upper portion of the vertical wall portion 16, and the lower end of the cushion bending portion 29 It is located upward away from the footrest 17.

For this reason, even if the cushion bent portion 29 protrudes downward from the front end of the cushion main body 28 to some extent, the lower end of the cushion bent portion 29 will be Therefore, the cushion body 28 of the seat cushion 9 can be almost entirely overlapped on the seat support portion 15.

Therefore, even when the amount of downward projection of the cushion bending portion 29 is increased to improve the appearance of the seat cushion 9, the seat cushion 9 can be sufficiently rotated downward A. The upper surface of the cushion body 28 of the seat cushion 9 can be made substantially horizontal, and the seat 7 can be stored compactly.

Further, as described above, when the seat 7 is in the "retracted posture", the cushion bent portion 29 is located near the front of the upper portion of the vertical wall portion 16, so that the cushion bent portion 29 The seat 7 is prevented from protruding greatly from the front, so that the seat 7 can be stored more compactly.

As described above, of the plurality of cross members 22, 23, some of the cross members 22 are disposed at the front end of the cushion bending portion 29, while all other cross members 23 are connected to the above. It is arranged at the rear of the cushion body 28.

For this reason, since the cross members 22 and 23 do not exist in the transition portion of the seat cushion 9 from the cushion main body 28 to the cushion bending portion 29,
Generally, when the user sits on the seat cushion 9, he or she often sits on a middle part of the seat cushion 9 including the transition portion in the front-rear direction. At this time, it is possible to prevent the cross members 22 and 23 from interfering with the buttocks.

Further, the cushion stroke in the transition portion can be increased by the amount that the cushion bending portion 29 is projected downward.

Thus, the comfort of sitting on the seat cushion 9 is improved.

As described above, the pivoting support 10 has a bracket 32 projecting downward from the lower surface of the cushion main body 28 of the seat cushion 9, and a pivot for pivotally supporting the seat leg 11 on the bracket 32. When the seat 7 is brought into the "retracted posture" by turning the seat leg 11 upward B and rotating the seat cushion 9 downward A, the cushion body of the seat cushion 9 is provided. 28 is supported on the seat support 15 via the bracket 32.

Therefore, in the "storage posture" of the seat 7, the seat cushion 9 is supported on the seat support portion 15 of the floor panel 2 by the bracket 32 without passing through the seat leg 11 which is stored and not used. Therefore, the seat cushion 9 is firmly supported by the seat support portion 15 without rattling.

Further, as described above, the space between the cushion body 28 and the cushion bending portion 29 in the front-rear direction when viewed from the side of the seat 7 and the seat leg A seat side cover 35 is provided to cover the front side of the vehicle from the outside.

For this reason, the seat cushion 9 in the side view of the seat 7 is provided by the seat side cover 35.
The apparent thickness is increased. In addition, the seat legs 11 are entirely covered and hidden by the seat side cover 35, so that the seat legs 11 are prevented from being visible in appearance.

Thus, the appearance of the seat cushion 9 is further improved.

Also, since the seat side cover 35 is attached to the seat leg 11 so that the seat side cover 35 rotates upward B together with the seat leg 11, when the seat 7 is brought into the "storage posture", It is not necessary to rotate the side cover 35 separately from the seat leg 11.

Therefore, even when the appearance of the seat cushion 9 is improved by providing the seat side cover 35, the operation of bringing the seat 7 into the "retracted posture" can be easily performed.

As described above, when the seat 7 is in the "retracted attitude", the seat cushion 9 is supported by the seat support 15 by the bracket 32. It is prevented that an external force is applied from the seat cushion 9 or the seat support 15 side.

Accordingly, the seat side cover 35 is prevented from being scratched, and the appearance of the seat side cover 35 is kept good, that is, the appearance of the seat cushion 9 in the "normal posture" of the seat 7 is made good. Will be kept.

[0058]

The effects of the present invention are as follows.

According to the first aspect of the present invention, a seat provided on a floor panel of a vehicle body has a rear end pivotally supported by the floor panel so that a front end can be pivoted downward so that an occupant can be seated. A cushion and a vertically extending portion below the seat cushion, an upper end portion of which is pivotally supported by the seat cushion so that a lower end portion thereof can rotate upward to a position near the lower surface of the seat cushion; And a seat leg for supporting the above on the floor panel,

The floor panel supports the seat cushion together with the seat legs, a vertical wall extending downward from the front end of the seat support, and a vertical wall extending from the extending end of the vertical wall. A footrest portion extending forward and allowing a foot of an occupant seated on the seat cushion to be placed thereon,

The seat cushion bends so as to protrude forward and downward from the front end of the cushion body, constituting a front end of the cushion body constituting a middle part and a rear part of the seat cushion in the front-rear direction. And a cushion bend.

For this reason, even if the thickness of the seat cushion is made thinner as a whole to reduce the weight,
In particular, when the seat cushion is viewed from the front side thereof, the thickness of the seat cushion appears to be thicker due to the provision of the cushion bending portion.

Therefore, the appearance of the seat cushion is improved as compared to the case where the seat cushion is simply made flat and looks thin as a whole.

When the seat leg is pivoted upward and the seat cushion is pivoted downward so that the cushion body of the seat cushion is placed on the seat support, that is, the seat is in the "retracted posture". ", The cushion bending portion is located near the front of the vertical wall portion.

For this reason, even if the cushion bent portion is protruded downward from the front end of the cushion main body to some extent, the lower end of the cushion bent portion abuts on the floor panel when the seat is in the "storage posture". Is prevented, and the cushion body of the seat cushion can be almost entirely overlapped on the seat support portion.

Therefore, even when the amount of downward projection of the cushion bent portion is increased to improve the appearance of the seat cushion, the seat cushion can be sufficiently rotated downward, and the seat cushion can be rotated downward. The upper surface of the cushion body can be made substantially horizontal, and the seat can be stored compactly.

Further, as described above, when the seat is in the "retracted posture", the cushion bent portion is located near the front of the vertical wall portion, so that the cushion bent portion largely projects forward from the vertical wall portion. This prevents the sheet from being stored more compactly.

According to a second aspect of the present invention, there is provided a seat apparatus for an automobile, wherein the seat cushion includes a pair of left and right seat side frames extending in the front-rear direction and a plurality of cross members connecting the left and right seat side frames to each other.

Among the plurality of cross members, a part of the cross members is disposed at the front end of the bent portion of the cushion, while all the other cross members are disposed at the rear of the cushion body.

For this reason, since there is no cross member at the transition portion from the cushion body to the cushion bending portion in the seat cushion, generally, when sitting on the seat cushion, the seat cushion including the transition portion has an intermediate portion in the front-rear direction. I often sit on
At this time, it is possible to prevent the cross member from interfering with the buttocks.

Further, the cushion stroke in the transition portion can be increased by the amount that the cushion bending portion is projected downward.

Accordingly, the comfort of sitting on the seat cushion is improved.

According to a third aspect of the present invention, the pivot support includes a bracket protruding downward from a lower surface of the cushion body, and a pivot shaft for pivotally supporting the seat leg on the bracket. When the seat leg is rotated upward and the seat cushion is rotated downward to bring the seat into the "storage posture", the cushion body is supported on the seat support portion via the bracket. It is.

For this reason, in the “storage posture” of the seat, the seat cushion is supported by the bracket on the seat supporting portion of the floor panel without passing through the seat leg which is stored and not in use. The support of the seat cushion with respect to the seat support portion is made firm and stable.

According to a fourth aspect of the present invention, the seat leg is disposed on the side of the seat cushion, and the space between the cushion main body and the cushion bending portion in a side view of the seat and the seat leg are viewed from the outside. A covering seat side cover is provided.

For this reason, the apparent thickness of the seat cushion in the side view of the seat is increased by the seat side cover. Further, the seat leg is covered and hidden by the seat side cover, so that the seat leg is prevented from being visible in appearance.

Therefore, the appearance of the seat cushion is further improved.

Further, since the seat side cover is attached to the seat leg so that the seat side cover rotates upward together with the seat leg, when the seat is in the "storage posture", the seat side cover is moved to the seat leg. It is not necessary to separately perform a rotating operation.

Therefore, even if the appearance of the seat cushion is improved by providing the seat side cover, the operation of setting the seat in the "storage posture" can be easily performed.

Further, as described in the third aspect of the present invention, when the seat is set in the "storage posture", the seat cushion is supported by the seat support portion by the bracket, so that the seat cushion is stored when the seat is stored. An external force is prevented from being applied to the seat side cover from the seat cushion or the seat support portion.

Accordingly, the seat side cover is prevented from being damaged, and the appearance of the seat side cover is kept good, that is, the appearance of the seat cushion in the "normal posture" of the seat is kept good.

[Brief description of the drawings]

FIG. 1 is a partially broken perspective view of a seat device.

FIG. 2 is a partially broken side view of the seat device.

FIG. 3 is a sectional view taken along line 3-3 of FIG. 2;

FIG. 4 is an operation explanatory view corresponding to FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Floor panel 3 Cabin 4 Occupant 4a Foot 5 Seat device 7 Seat 9 Seat cushion 10 Pivot support 11 Seat leg 12 Seat back 15 Seat support part 16 Vertical wall part 17 Footrest part 20 Seat cushion frame 21 Seat side frame 22, 23 Cross member 28 Cushion body 29 Cushion bent part 32 Bracket 33 Pivot shaft 35 Seat side cover

Claims (4)

[Claims] 1. A seat cushion provided on a floor panel of a vehicle body, wherein a rear end portion of the seat is pivotally supported by the floor panel so that a front end portion of the seat can be rotated downward, and an occupant can be seated thereon. An upper end portion is pivotally supported by the seat cushion so that a lower end portion thereof extends vertically below the cushion so that a lower end portion thereof can rotate upward to a position near the lower surface of the seat cushion. A seat leg for supporting the seat cushion together with the seat leg, a vertical wall extending downward from a front end of the seat support, and a vertical wall. And a foot rest portion extending forward from the extension end of the seat portion so that the foot of the occupant sitting on the seat cushion can be placed. In the vehicle seat device, the seat cushion forms a front and rear portion of the cushion body that forms a middle portion and a rear portion of the seat cushion in a front-rear direction, and protrudes forward and downward from a front end of the cushion body. When the seat leg is rotated upward and the seat cushion is rotated downward and the cushion body of the seat cushion is placed on the seat support, the vertical wall is provided. An automobile seat device wherein the cushion bending portion is located near the front of the portion. 2. The vehicle seat apparatus according to claim 1, wherein the seat cushion includes a pair of left and right seat side frames extending in the front-rear direction and a plurality of cross members for connecting the left and right seat side frames to each other. 2. The vehicle seat device according to claim 1, wherein a part of the cross members is disposed at a front end of the cushion bent portion, and all other cross members are disposed at a rear portion of the cushion body. 3. The pivot support includes a bracket protruding downward from a lower surface side of the cushion body, and a pivot shaft pivotally supporting the seat leg on the bracket, and the seat leg is turned upward. The vehicle seat apparatus according to claim 1 or 2, wherein the cushion body is supported on the seat supporting portion via the bracket when the seat cushion is rotated downward while being moved. 4. A seat side cover which is disposed on a side of the seat cushion and covers a space between a cushion body and a cushion bending portion in a side view of the seat and covers the seat leg from outside. The vehicle seat apparatus according to any one of claims 1 to 3, wherein a seat side cover is attached to the seat leg so that the seat side cover rotates upward together with the seat leg.