JP2014034253A - Vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle seat in which the appearance quality of a rear surface of a cover, which is seen when a seat cushion is placed at a standing position and an article storage part is used, is improved without increasing the number of components and the weight.SOLUTION: A vehicle seat includes: a seat cushion; a support frame 2; and an article storage part 3. The vehicle seat is provided with a rotation mechanism which allows the seat cushion to make oscillating rotation around a horizontal shaft core at a seat front end part side, and the seat cushion is formed so as to be switched between a seated position and a standing position. The vehicle seat includes a cover 5 which covers the rear surface side of the support frame 2, and a recessed part 35 for improving the rigidity of the cover 5 is formed at the cover 5. The recessed part 35 is recessed to the seat front side Fr.

Description

The present invention
Seat cushion,
A frame-like support frame for placing and supporting the seat cushion;
An article storage unit disposed within the frame of the support frame,
The article storage part opens upward,
A rotation mechanism is provided between the front end portion of the seat cushion and the support frame to allow the seat cushion to swing and rotate about a horizontal axis on the seat front end portion side. It is configured to be switchable between a sitting posture that covers the opening of the storage portion and a standing posture that opens the opening,
The present invention relates to a vehicle seat including a cover that covers a rear surface side of the support frame.

Generally, the cover that covers the support frame is formed of resin. Therefore, conventionally, lattice-like ribs are formed on the back surface opposite to the design surface of the cover to ensure the surface strength of the cover (see Patent Document 1).
However, when the above-described conventional technique is employed in a structure in which the seat cushion is configured to be switchable between the sitting posture and the standing posture (see Patent Literature 1 and Patent Literature 2), the article is placed with the seat cushion in the standing posture. When using the storage portion, the rib on the back of the cover is visible to the passenger.

JP 2011-11668 A JP 2005-193883 A JP 2004-155284 A

According to the above-described conventional structure, there is a problem in that the appearance is impaired because the ribs on the back surface of the cover are visible to the occupant when the article storage unit is used with the seat cushion in the standing posture.
A means for covering the back surface of the cover exposed when the seat cushion is standing up with another cover is also conceivable. However, this means increases the number of parts and the weight.
An object of the present invention is to provide a vehicle seat that can improve the appearance quality of the back surface of a cover that is visible when the article storage unit is used with the seat cushion in an upright posture without causing an increase in the number of parts and weight. In the point.

The feature of the present invention is that
Seat cushion,
A frame-like support frame for placing and supporting the seat cushion;
An article storage unit disposed within the frame of the support frame,
The article storage part opens upward,
A rotation mechanism is provided between the front end portion of the seat cushion and the support frame to allow the seat cushion to swing and rotate about a horizontal axis on the seat front end portion side. It is configured to be switchable between a sitting posture that covers the opening of the storage portion and a standing posture that opens the opening,
A vehicle seat comprising a cover that covers the rear side of the support frame,
A recess for improving the rigidity of the cover is formed in the cover,
The said recessed part exists in the point dented in the sheet | seat front side. (Claim 1)

Since the concave portion for improving the rigidity of the cover is formed in the cover, it is not necessary to provide a rib for improving the rigidity on the back surface of the cover. Therefore, the appearance of the back surface of the cover that is visible when the article storage portion is used with the seat cushion in a standing posture is not impaired. Further, the appearance of the design surface of the cover on the back side of the seat cushion is not impaired.
And since the said recessed part is dented in the seat front side, when the said structure of this invention is applied to a front seat, the space where the leg part of a rear-seat passenger | crew is located can be ensured widely, Indoor comfort can be improved.
Furthermore, since it is not necessary to cover the back surface of the cover with another cover, an increase in the number of parts and the weight can be avoided. (Claim 1)

In the present invention,
When the recess is formed between both ends of the cover in the sheet width direction, the following effect can be obtained. (Claim 2)

  The concave portion can be formed long in the sheet width direction, and the rigidity of the cover can be sufficiently secured. (Claim 2)

In the present invention,
When the back surface of the cover that is exposed when the seat cushion is in the standing posture is textured, the following effects can be achieved. (Claim 3)

  The appearance of the back surface of the cover can be made equivalent to the design surface of the cover on the back side of the seat cushion, and the appearance quality around the article storage portion when using the article storage portion with the seat cushion in a standing posture is improved. be able to. (Claim 3)

In the present invention,
The rear portion of the support frame is composed of an upper pipe on the upper rear side along the seat width direction, and a lower pipe on the lower front side along the seat width direction,
The front side wall portion of the concave portion of the cover is formed in a vertical wall shape,
A vertical rib-like lower fitting wall fitted from the rear side of the seat to the lower pipe projects from the front side wall to the front side of the seat,
The cover includes a bottom wall that extends from the lower end of the front side wall to the front side of the seat,
The lower end of the lower fitting wall is connected to the upper surface of the bottom wall,
When the lower fitting wall is connected to a support wall standing on the bottom wall on the side of the lower fitting wall and supported by the support wall, the following effects can be obtained. (Claim 4)

  Since the lower fitting wall is supported by the bottom wall and the supporting wall, the rigidity of the lower fitting wall can be improved, and the fitting state of the lower fitting wall and the lower pipe can be further stabilized. it can. (Claim 4)

In the present invention,
The rear end portion of the upper side wall portion of the recess is disposed close to the lower side of the upper pipe,
When the upper fitting wall having an arcuate cross section that is fitted to the upper pipe from the rear side of the seat rises from the rear end portion of the upper wall portion of the recess, the following action can be achieved. (Claim 5)

  The rising amount of the upper fitting wall from the rear end portion of the upper side wall portion can be shortened, and the weight can be reduced. (Claim 5)

In the present invention,
The article storage unit includes a box-shaped storage unit main body provided with the opening on the upper side, and a rear flange projecting from the rear upper end of the storage unit main body to the seat rear side,
The upper side wall portion of the recess is formed substantially horizontally,
The front end portion of the upper wall portion is abutted against the rear end portion of the rear flange of the article storage portion, and the upper surface of the upper wall portion of the recess and the upper surface of the rear flange are positioned at substantially the same position in the vertical direction. If this is done, the following effects can be achieved. (Claim 6)

  There is no step between the article storage section and the back of the cover. Therefore, a more natural appearance can be achieved. Further, even if an accessory to be stored in the article storage portion falls to the cover side, the accessory can be received by the upper side wall portion of the recess and guided into the article storage portion. (Claim 6)

In the present invention,
When the back surface of the cover that is in contact with the rear end portion of the rear flange of the article storage portion is textured, the following effects can be achieved. (Claim 7)

  Scratches on the back surface of the cover that contact the rear end of the rear flange of the article storage portion can be made inconspicuous, and the appearance of the back surface of the cover can be prevented from being damaged when the article storage portion is removed. be able to. (Claim 7)

According to the present invention,
It was possible to provide a vehicle seat that can improve the appearance quality of the back surface of the cover that is visible when the article storage unit is used with the seat cushion in a standing posture without causing an increase in the number of parts and weight.

Perspective view of vehicle seat with seat cushion standing X arrow view of FIG. The perspective view which looked at the cover from the back side The perspective view which looked at the cover from the design side Cover longitudinal section Longitudinal sectional view showing another embodiment

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
1 and 2 show a vehicle seat mounted as a front seat in an automobile. The vehicle seat includes a seat back (not shown) that supports the upper body of the occupant, a seat cushion 1 that supports the buttocks and thighs of the occupant, and a frame-like support frame 2 that supports the seat cushion 1. And. Further, the vehicle seat includes an article storage unit 3 disposed in the frame of the support frame 2, a pair of left and right slide rails 4 that slidably support the support frame 2 in the front-rear direction of the seat, and a rear surface of the support frame 2. And a resin cover 5 covering the side. Another vehicle seat as a rear seat is arranged behind the vehicle seat of the automobile.

[Structure of article storage unit 3]
The article storage unit 3 includes a rectangular box-shaped storage unit main body 11 having an opening 3K (see FIG. 5) on the upper side, and a rear side projecting from the rear upper end of the storage unit main body 11 to the seat rear side Rr. And a flange 12. As shown in FIG. 1, the central portion of the rear flange 12 in the sheet width direction is cut away. Further, both end portions in the sheet width direction of the rear flange 12 are inclined so as to be positioned higher toward the outer side in the sheet width direction.

[Structure of support frame 2]
The support frame 2 includes a pair of left and right side frames 21 and a rear frame 23 (corresponding to a rear portion of the support frame) that connects the rear ends of the pair of left and right side frames 21. The lower ends of the pair of left and right side frames 21 are fixed to the movable rails 4A of the pair of left and right slide rails 4 by bolts B, respectively. The movable rail 4A is fitted to the fixed rail 4B of the slide rail 4 so as to be slidable in the rail longitudinal direction.

  The rear frame 23 includes an upper pipe 24 on the upper rear side along the seat width direction and a lower pipe 25 on the lower front side along the seat width direction. The upper pipe 24 and the lower pipe 25 are formed in a cylindrical shape. The end portion in the longitudinal direction of the upper pipe 24 and the end portion in the longitudinal direction of the lower pipe 25 are inserted into a pipe insertion hole of a rising portion 21B extending rearward and upward from the rear end portion of the side frame 21 and fixed by welding. .

  As shown in FIG. 1, the seat cushion 1 includes a seat cushion frame 1F that forms a skeleton of the seat cushion 1, a seat cushion pad supported by the seat cushion frame 1F, and a skin material that covers the seat cushion pad. The seat cushion pad is made of urethane foam.

  A rotation mechanism 51 is provided between the front end 1M of the seat cushion 1 and the front end 21M of the side frame 21 to allow the seat cushion 1 to swing and rotate around the horizontal axis O on the seat front end side. The seat cushion 1 is configured to be switchable between a sitting posture that covers the opening 3K of the article storage unit 3 and a standing posture (see FIG. 1) that opens the opening 3K. Between the seat cushion 1 and the support frame 2, there is provided a lock mechanism capable of locking and unlocking the seat cushion 1 in the sitting posture.

  The occupant raises the seat cushion 1 to the front side, puts the article into and out of the article storage unit 3 in a standing posture. That is, the seat cushion 1 is configured to be switchable between the seating posture and the standing posture so that the occupant can put in and out the article in the article storage unit 3.

  As shown in FIG. 1, a pair of left and right leg portions 52 extends downward from the front end portion of the seat cushion frame 1 </ b> F, and a connection hole is formed in the lower end portion of the leg portion 52. The leg portion 52 is formed in a triangular shape that is narrowed when viewed from the seat width direction. A support shaft 53 (horizontal axis) is provided along the seat width direction at the front lower end of the pair of left and right side frames 21. Then, the rotation mechanism 51 is configured by extrapolating the connection hole to the support shaft 53 in a rotatable manner.

[Structure of cover 5]
As shown in FIGS. 3 to 5, the cover 5 has a rectangular bottom wall 30 that is long in the seat width direction, and a straight line from the rear end portion of the bottom wall 30 to the rear upper side so as to be positioned higher toward the rear end side. And an upper fitting wall 32 having an arcuate cross section that rises from the upper end of the inclined wall 31 and is fitted to the upper pipe 24 from the seat rear side Rr. The upper fitting wall 32 is open to the seat front side Fr.

  A concave portion 35 for improving the rigidity of the cover 5 is formed in the inclined wall 31. The recessed part 35 is recessed in the sheet | seat front side Fr, and is formed over the sheet | seat width direction both ends of the inclined wall 31. As shown in FIG.

  As shown in FIGS. 3 and 5, the upper wall portion 46 of the recess 35 is formed substantially horizontally, and the rear end portion of the upper wall portion 46 is disposed close to the lower side of the upper pipe 24. The lower front end of the upper fitting wall 32 having an arcuate cross section is connected to the rear end of the upper wall 46 of the recess 35 and the upper end of the inclined wall 31. Thereby, the rising amount of the upper fitting wall 32 from the rear end part of the upper side wall part 46 can be shortened, and the weight can be reduced.

  A plurality of arc-shaped ribs 40 arranged at intervals in the seat width direction are erected on the inner peripheral portion of the upper fitting wall 32, and the tops of the plurality of ribs 40 extend from the seat rear side Rr to the upper pipe 24. Mating. As shown in FIGS. 3 and 5, a groove 40 </ b> Z for preventing the occurrence of sink marks on the design surface of the upper fitting wall 32 and the design surface of the inclined wall 31 at the base of the rib 40 on the outer side in the sheet width direction. Is formed. The groove 40Z is open to the outside in the sheet width direction.

  The front side wall 45 of the recess 35 of the cover 5 is formed in a substantially vertical vertical wall shape. That is, the front side wall portion 45 extends downward from the front end portion of the upper side wall portion 46, and the front side wall portion 45 and the upper side wall portion 46 form a concave wall having an L-shaped cross section. As shown in FIG. 3, in the sheet width direction central portion 45B of the front side wall portion 45, the depth of the concave portion 35 in the seat front-rear direction is set shallower than the portions 45A on both sides of the sheet width direction central portion 45B. .

  The bottom wall 30 extends substantially horizontally from the lower end of the front side wall 45 to the seat front side Fr. As shown in FIGS. 3 and 5, a pair of left and right vertical rib-like lower fitting walls 36 fitted to the lower pipe 25 from the seat rear side Rr project from the front side wall portion 45 to the seat front side Fr. ing. The lower fitting wall 36 is located at the end of the cover 5 in the sheet width direction.

  The lower fitting wall 36 is formed by forming a large arc-shaped hole in the rectangular wall body that opens to the seat front side Fr. The upper surface 36J of the lower fitting wall 36 is formed in a gentle arc shape that protrudes upward. Further, as shown in FIG. 3, a plurality of pipe support ribs 70 are erected on the bottom wall 30 on the inner side in the seat width direction of the pair of left and right lower fitting walls 36. The pipe support rib 70 receives and supports the lower pipe 25 from below.

  The lower end portion of the lower fitting wall 36 is continuous with the upper surface of the bottom wall 30. As shown in FIGS. 3 and 5, in order to prevent sink marks from occurring on the design surface of the bottom wall 30 and the design surface of the front side wall portion 45 at the lower end portion and the rear end portion of the lower fitting wall 36. The grooves 36Z are respectively formed. The groove 36Z is open to the outside in the sheet width direction. Further, the lower fitting wall 36 is connected to the support wall 37 erected on the bottom wall 30 on the side (outside in the sheet width direction) of the lower fitting wall 36 and is supported by the support wall 37.

  The support wall 37 rises from the bottom wall 30 on the side of the rear end of the lower fitting wall 36 to the vicinity of the top of the lower fitting wall 36, and the seat front side Fr from the upper end of the rising wall 38. The upper wall 39 extends to the vicinity of the front end of the lower fitting wall 36. A corner portion between the rising wall 38 and the upper wall 39 is formed in an arc shape. Further, the side portion of the rising wall 38 on the inner side in the sheet width direction and the side portion of the upper wall 39 on the inner side in the sheet width direction are connected to the side surface of the lower fitting wall 36 on the outer side in the sheet width direction.

  As shown in FIG. 3, the back surface of the cover 5 that is exposed when the seat cushion 1 is in the standing posture is textured. Further, the back surface of the cover 5 with which the rear end portion of the rear flange 12 of the article storage unit 3 abuts is subjected to a textured process. The hatched portion in FIG. 3 indicates the portion that has been subjected to the texture processing. The embossed portions are the back surface (front surface) of the front side wall portion 45, the upper surface of the upper side wall portion 46, and the upper surface of the bottom wall 30 between the pair of left and right lower fitting walls 36.

  Since the back surface of the cover 5 with which the rear end portion of the rear flange 12 of the article storage unit 3 abuts is processed, the back surface of the cover 5 with which the rear end portion of the rear flange 12 abuts is less noticeable. can do. As a result, it is possible to prevent the appearance of the back surface of the cover 5 from being damaged while the article storage unit 3 is removed.

According to the above configuration,
(1) Since the concave portion 35 for improving the rigidity of the cover 5 is formed in the cover 5, it is not necessary to provide a rib for improving the rigidity on the back surface of the cover 5. Therefore, the appearance of the back surface of the cover 5 that is visible when the article storage unit 3 is used with the seat cushion 1 in the standing posture is not impaired. Further, the appearance of the design surface of the cover 5 on the back side of the seat cushion 1 is not impaired.
And since the said recessed part 35 is dented in the seat front side Fr, the space in which the leg part of a rear-seat passenger | crew is located can be ensured widely, and the indoor occupancy of a rear-seat passenger | crew can be improved.
Furthermore, since it is not necessary to cover the back surface of the cover 5 with another cover, an increase in the number of parts and weight can be avoided.

(2) Since the concave portion 35 is formed between both ends of the cover 5 in the sheet width direction, the concave portion 35 can be formed long in the sheet width direction, and the rigidity of the cover 5 can be sufficiently secured. .

(3) Since the back surface of the cover 5 exposed during the standing posture of the seat cushion 1 is textured, it is possible to make the appearance of the back surface of the cover 5 equal to the design surface of the cover 5 on the back side of the seat cushion 1. it can. And the external appearance quality around the article | item storage part 3 at the time of using the article | item storage part 3 by making the seat cushion 1 into a standing posture can be improved.

(4) Since the lower fitting wall 36 is supported by the bottom wall 30 and the support wall 37, the rigidity of the lower fitting wall 36 can be improved, and the lower fitting wall 36 and the lower pipe 25 can be improved. The fitting state can be further stabilized.

[Another embodiment]
As shown in FIG. 6, the front end portion of the upper wall portion 46 is abutted against the rear end portion of the rear flange 12 of the article storage portion 3, so that the upper surface 46 </ b> J of the upper wall portion 46 of the recess 35 and the rear flange. 12 upper surfaces 12J may be located at substantially the same position in the vertical direction.

  According to this configuration, no step is generated from the article storage unit 3 to the back surface of the cover 5. Therefore, a more natural appearance can be achieved. Further, even if an accessory to be stored in the article storage unit 3 falls to the cover 5 side, the accessory can be received by the upper side wall portion 46 of the recess 35 and guided into the article storage unit 3.

DESCRIPTION OF SYMBOLS 1 Seat cushion 1M Front end 2 of seat cushion 2 Support frame 3 Article storage part 3K Opening part 5 Cover 11 Storage part main body 12 Rear side flange 12J Rear flange upper surface 23 Rear part of support frame (rear frame)
24 Upper pipe 25 Lower pipe 30 Bottom wall 32 Upper fitting wall 35 Recess 36 Lower fitting wall 36J Upper surface of lower fitting wall 37 Support wall 45 Front wall portion 46 Upper wall portion 46J Upper surface 51 of upper wall portion Rotation Mechanism Fr Seat front side O Horizontal axis Rr Seat rear side

Claims (7)

Seat cushion,
A frame-like support frame for placing and supporting the seat cushion;
An article storage unit disposed within the frame of the support frame,
The article storage part opens upward,
A rotation mechanism is provided between the front end portion of the seat cushion and the support frame to allow the seat cushion to swing and rotate about a horizontal axis on the seat front end portion side. It is configured to be switchable between a sitting posture that covers the opening of the storage portion and a standing posture that opens the opening,
A vehicle seat comprising a cover that covers the rear side of the support frame,
A recess for improving the rigidity of the cover is formed in the cover,
The vehicle seat is recessed in the front side of the seat.   The vehicle seat according to claim 1, wherein the recess is formed across both ends of the cover in the seat width direction.   The vehicle seat according to claim 1, wherein a back surface of the cover that is exposed when the seat cushion is in a standing posture is textured. The rear portion of the support frame is composed of an upper pipe on the upper rear side along the seat width direction, and a lower pipe on the lower front side along the seat width direction,
The front side wall portion of the concave portion of the cover is formed in a vertical wall shape,
A vertical rib-like lower fitting wall fitted from the rear side of the seat to the lower pipe projects from the front side wall to the front side of the seat,
The cover includes a bottom wall that extends from the lower end of the front side wall to the front side of the seat,
The lower end of the lower fitting wall is connected to the upper surface of the bottom wall,
The said lower fitting wall continues to the supporting wall standingly arranged by the bottom wall of the side of the said lower fitting wall, and is supported by the said supporting wall as described in any one of Claims 1-3. Vehicle seat. The rear end portion of the upper side wall portion of the recess is disposed close to the lower side of the upper pipe,
The vehicle seat according to claim 4, wherein an upper fitting wall having an arcuate cross section that is fitted to the upper pipe from the rear side of the seat rises from a rear end portion of the upper wall portion of the recess. The article storage unit includes a box-shaped storage unit main body provided with the opening on the upper side, and a rear flange projecting from the rear upper end of the storage unit main body to the seat rear side,
The upper side wall portion of the recess is formed substantially horizontally,
The front end portion of the upper wall portion is abutted against the rear end portion of the rear flange of the article storage portion, and the upper surface of the upper wall portion of the recess and the upper surface of the rear flange are positioned at substantially the same position in the vertical direction. The vehicle seat according to claim 5.   The vehicle seat according to claim 6, wherein the back surface of the cover with which the rear end portion of the rear flange of the article storage portion comes into contact is processed.

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