JP5593567B2 - Seat cushion fixing structure - Google Patents

Description

  The present invention provides a hard cushion material, a soft cushion material that wraps the hard cushion material, and a cushion that is integrally provided with a cushion frame, and a fixed body provided on the cushion frame so as to protrude downward from the lower surface side of the seat cushion. And a cushion fixing portion fixed to the vehicle body floor portion, and by pressing the fixed portion against the cushion fixing portion by a pressing operation of pressing the seat cushion downward, the seat cushion is moved to the vehicle body. The present invention relates to a seat cushion fixing structure that can be fixed to a floor.

The above-mentioned seat cushion fixing structure, for example, prevents the passenger seated on the seat or the child seat attached to the seat from sliding forward (submarine phenomenon) due to a sudden deceleration of the vehicle such as when the vehicle front collides. A hard cushion material as a prevention member, a soft cushion material that wraps the hard cushion material, and a seat cushion integrally provided with a cushion frame are fixed to the vehicle body floor.
In the above-mentioned seat cushion fixing structure, conventionally, a cushion frame is arranged over the lower side of the soft cushion material portion located laterally away from the hard cushion material, and the lower cushion frame portion of the soft cushion material portion is arranged. The fixed portion is provided so as to protrude downward from the lower surface side of the seat cushion (see, for example, Patent Document 1).

JP 2009-56190 A

For this reason, when fixing a seat cushion to a vehicle body floor part, even if it presses a seat cushion downward, there exists a fault which is hard to push a to-be-fixed part with respect to a cushion fixing | fixed part.
That is, when the seat cushion is pressed downward, the soft cushion material is easily deformed, and the pushing force is not easily transmitted to the fixed portion.
This invention is made | formed in view of the said situation, Comprising: It aims at providing the seat cushion fixing structure which is easy to push a to-be-fixed part with respect to a cushion fixing | fixed part.

A first characteristic configuration of the present invention is a seat cushion integrally including a hard cushion material, a soft cushion material surrounding the hard cushion material, and a cushion frame, and the cushion frame so as to protrude downward from the lower surface side of the seat cushion. A fixed portion provided on the vehicle body floor portion, and a cushion fixing portion fixed to the vehicle body floor portion, and by pressing the fixed portion against the cushion fixing portion by a pressing operation of pressing the seat cushion downward, A seat cushion fixing structure configured such that a seat cushion can be fixed to the vehicle body floor portion, wherein the fixed portion is provided so as to enter a lower side of the hard cushion material from a lower surface of the hard cushion material. through the soft cushion material portion has, collision downwardly from the lower surface of the soft cushion material portion In that is provided so as to.

The seat cushion fixing structure of the present configuration is such that the fixed portion is provided so as to enter the lower side of the hard cushion material from the lower surface of the hard cushion material, which is less likely to be deformed than the soft cushion material. The cushion frame is provided so as to protrude downward from the lower surface side of the soft cushion material portion through the portion .
For this reason, even if the soft cushion material is deformed during the pressing operation of the seat cushion, the pushing force is easily transmitted to the fixed part via the hard cushion material.
Therefore, with the seat cushion fixing structure of this configuration, the fixed portion can be easily pushed into the cushion fixing portion.

A second characteristic configuration of the present invention is a seat cushion integrally including a hard cushion material, a soft cushion material that wraps the hard cushion material, and a cushion frame, and the cushion frame so as to protrude downward from the lower surface side of the seat cushion. A fixed portion provided on the vehicle body floor portion, and a cushion fixing portion fixed to the vehicle body floor portion, and by pressing the fixed portion against the cushion fixing portion by a pressing operation of pressing the seat cushion downward, A seat cushion fixing structure configured to be able to fix a seat cushion to the vehicle body floor portion, and a pair of extended portions extending obliquely downward toward the lower side so as to be closer to each other at a midpoint of the cushion frame An oblique frame part is provided, and the fixed part extends over the lower end sides of the pair of oblique frame parts. Vignetting, wherein provided at the underside of the hard cushion member from the lower surface side of the seat cushion so as to protrude downwardly, so that the hard cushion material, a series in contact with the upwardly facing surface of the pair of oblique frame portion to, in entering in not that the point between the the pair of oblique frame portion.

The seat cushion fixing structure of this configuration is provided on the cushion frame such that the fixed portion protrudes downward from the lower surface side of the seat cushion on the lower side of the hard cushion material that is hard to be deformed compared to the soft cushion material. .
For this reason, even if the soft cushion material is deformed during the pressing operation of the seat cushion, the pushing force is easily transmitted to the fixed part via the hard cushion material.
Therefore, with the seat cushion fixing structure of this configuration, the fixed portion can be easily pushed into the cushion fixing portion.
Then, a pair of oblique frame portions extending obliquely downward so as to be closer to each other toward the lower side are provided in the middle of the cushion frame, and the fixed portion is a lower end of the pair of oblique frame portions. Provided so as to protrude downward from the lower surface side of the seat cushion on the lower side of the hard cushion material, and the hard cushion material is a series with respect to the upward surfaces of the pair of oblique frame portions. to contact the, because it entered between the pair of diagonal frame portion, when the pressing operation of the sheet over cushions, hard cushion material is pressed to contact the series with respect to the upward surface of the pair of oblique frame portion .
For this reason, the pressing force transmitted to the hard cushion material during the pressing operation of the seat cushion acts on each of the oblique frame portions in a distributed manner on the upward surface of the oblique frame portion, and the hard cushion material is difficult to deform.
As a result, the pressing force is easily transmitted efficiently from the hard cushion material to the fixed portion, and the fixed portion is more easily pushed into the cushion fixing portion.

It is a perspective view which shows a rear seat. It is a top view which shows the inside of a seat cushion. It is a longitudinal cross-sectional view of a seat cushion. It is a front view of a to-be-fixed part. It is a top view of a to-be-fixed part. The cushion fixing | fixed part before fixing a to-be-fixed part is shown, (a) is a vertical front view, (b) is a vertical side view. The cushion fixing part after fixing a to-be-fixed part is shown, (a) is a vertical front view, (b) is a vertical side view.

Embodiments of the present invention will be described below with reference to the drawings.
1 to 3 show an automobile rear seat A fixed to a vehicle body floor portion B, and a vehicle body front side portion of the rear seat A is fixed to the vehicle body floor portion B by a seat cushion fixing structure according to the present invention.
The rear seat A has a horizontally long seat cushion 1 and a seat back 2 on which two or more passengers can sit.

  The seat cushion 1 includes a hard cushion material 3 formed of foamed polypropylene or foamed polystyrene, and a soft cushion material 4 that wraps the hard cushion material 3, and is formed of urethane foam that is softer than the hard cushion material 3. A soft cushion material 4 and a cushion frame 5 formed of a metal wire such as a steel wire are integrally provided, and the surface of the seat cushion 1 is covered with a covering sheet material (not shown).

  As shown in FIG. 3, the hard cushion material 3 includes an upper hard cushion portion 3 a having a substantially triangular mountain shape and a lower hard portion having a substantially rectangular shape that protrudes downward from the lower surface of the upper hard cushion portion 3 a. It is formed in a horizontally long shape integrally provided with the cushion portion 3b, and step portions 6 are formed on the front and rear sides of the lower hard cushion portion 3b.

Protrusions 12 projecting toward the front of the vehicle body are formed at two locations on the left and right sides of the upper hard cushion portion 3a on the front side of the vehicle body. As shown in FIGS. 3 and 4, on the lower surface side of the portion projecting to the side, a ridge portion projecting downward along the longitudinal direction of the vehicle body over the projecting portion 12 and the lower hard cushion portion 3b. 13 is integrally molded.
As shown in FIG. 4, the ridge portion 13 is formed in a cross-sectional shape having left and right inclined side surfaces 13 a that are inclined so as to be separated from each other in the lateral direction of the vehicle body toward the upper side.

As shown in FIG. 3, the soft cushion material 4 includes a front soft cushion portion 4a that wraps the upper hard cushion portion 3a and a vehicle body rear side of the front soft cushion portion 4a so as to be lower than the front soft cushion portion 4a. It is formed in a horizontally long shape integrally provided with the rear soft cushion portion 4b provided.
The front soft cushion portion 4a is provided so as to enter the step portion 6 formed respectively before and after the lower hard cushion portion 3b.

As shown in FIGS. 1 and 2, the cushion frame 5 is formed in a frame shape substantially along the outer peripheral shape of the seat cushion 1 and embedded in the soft cushion material 4 by insert molding.
The front frame portion 5a along the vehicle body front side of the cushion frame 5 is disposed so as to contact the lower surface of the upper hard cushion portion 3a.

  As shown in FIG. 1 and FIG. 4, the left and right two portions of the front frame portion 5a are bent into a U-shape projecting downward from the lower surface side of the seat cushion 1 on the lower side of the upper hard cushion portion 3a. A fixed portion 7 for fixing the front portion of the seat cushion 1 to the vehicle body floor B is integrally provided.

  As shown in FIGS. 4 and 5, each of the fixed portions 7 includes a pair of left and right rearward bent portions 15 bent by the front frame portion 5 a toward the rear side of the vehicle body, and a rearward bent portion 15. A pair of oblique frame portions 8 that are linearly extended obliquely downward toward the front side of the vehicle body so as to be closer to each other from the rear end side of the vehicle body toward the lower side, and the lower end side of the pair of oblique frame portions 8 Are provided.

  The upper rigid cushion portion 3a is inserted between the pair of oblique frame portions 8 so that the left and right inclined side surfaces 13a of the ridge portion 13 are in series contact with the upward surfaces 8a of the pair of oblique frame portions 8. is there.

As shown in FIGS. 1 and 2, the vehicle body rear side portion of the seat cushion 1 is locked to the vehicle body floor B at two left and right positions of the rear frame portion 5 b along the vehicle body rear side of the cushion frame 5. A U-shaped locked member 9 is fixed so as to protrude from the rear surface side of the seat cushion 1 toward the rear side of the vehicle body.
A downwardly U-shaped locking member 14 for fixing the locked member 9 to the vehicle body floor B is welded and fixed to the vehicle body floor B by inserting the locked member 9 from the front side of the vehicle body. It is.

As shown in FIGS. 2, 3, 6, and 7, a cushion fixing portion 10 that fixes each of the fixed portions 7 is fixed to the vehicle body floor portion B.
As shown in FIGS. 6 and 7, the cushion fixing portion 10 includes an outer member 10 a that is pressed and fixed into the through hole of the vehicle body floor portion B, and an inner member 10 b that is pressed into the outer member 10 a in a retaining state. It is composed of grommets equipped with.
The inner member 10b is formed with a push-in hole 11 into which the fixed portion 7 is pushed in a state that prevents the fixed portion 7 from coming off.

  Then, in a state where the locked member 9 provided on the rear frame portion 5b is locked from the front side of the vehicle body to the locking member 14 provided on the vehicle body floor B, as shown in FIG. As shown in FIG. 7, the inner member 10b is further pushed into the outer member 10a as shown in FIG. 7 by pushing the portion 7 to be fixed toward the push-in hole 11 of the inner member 10b by pressing downward. 7 is pushed into the push-in hole 11 in a retaining state, the seat cushion 1 is fixed to the vehicle body floor B, and the vehicle body floor B is sandwiched between the outer member 10a and the inner member 10b. Thus, the cushion fixing portion 10 is fixed to the vehicle body floor portion B.

[Other Embodiments]
1. In the seat cushion fixing structure according to the present invention, a fixed portion is provided on a cushion frame disposed on the lower side of a hard cushion material with a soft cushion material interposed therebetween, and the fixed portion is directed downward from the lower surface side of the seat cushion. It may be provided so as to protrude.
2. The seat cushion fixing structure according to the present invention is provided such that a fixed portion is provided on a cushion frame disposed inside a hard cushion material, and the fixed portion protrudes downward from the lower surface side of the seat cushion. May be.
3. In the seat cushion fixing structure according to the present invention, a fixed part separate from the cushion frame may be fixed to the cushion frame by welding or the like.

DESCRIPTION OF SYMBOLS 1 Seat cushion 3 Hard cushion material 4 Soft cushion material 5 Cushion frame 7 Fixed part 8 Diagonal frame part 8a Upward surface 10 Cushion fixing part B Vehicle body floor part

Claims (2)

A hard cushion material, a soft cushion material wrapping the hard cushion material, and a seat cushion integrally provided with the cushion frame; a fixed portion provided on the cushion frame so as to protrude downward from the lower surface side of the seat cushion; A cushion fixing part fixed to the floor part,
A seat cushion fixing structure in which the seat cushion can be fixed to the vehicle body floor portion by pressing the fixed portion into the cushion fixing portion by a pressing operation of pressing the seat cushion downward. ,
The fixed portion protrudes downward from the lower surface side of the soft cushion material portion through the soft cushion material portion provided so as to enter the lower side of the hard cushion material from the lower surface of the hard cushion material. Seat cushion fixing structure provided to do. A hard cushion material, a soft cushion material wrapping the hard cushion material, and a seat cushion integrally provided with the cushion frame; a fixed portion provided on the cushion frame so as to protrude downward from the lower surface side of the seat cushion; A cushion fixing part fixed to the floor part,
A seat cushion fixing structure in which the seat cushion can be fixed to the vehicle body floor portion by pressing the fixed portion into the cushion fixing portion by a pressing operation of pressing the seat cushion downward. ,
A pair of diagonal frame portions extending obliquely downward so as to be closer to each other on the lower side are provided in the middle of the cushion frame,
The fixed portion is provided across the lower end side of the pair of diagonal frame portions, and is provided so as to protrude downward from the lower surface side of the seat cushion on the lower side of the hard cushion material,
The hard cushion material, so as to be in contact with the series with respect to the upward surface of the pair of oblique frame portion, enters in not Resid over cushions fixing structure between the pair of diagonal frame portion.

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