JPH09301028A - Holding device for child seat cushion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a child seat cushion stored on the front face of a seat back from floating up from the seat back or falling down ahead at the storage position. SOLUTION: A child seat cushion A consists of first and second cushions 30, 35 connected to each other so that they can be folded in longitudinal direction, and can be unfolded between a usable position to be unfolded on the upper side of a seat cushion C and a storage position situated in a recessed part Ba provided on the front side of a seat back B. A seat back cover 20 for covering the surface of the seat back, consists of a top board inner surface skin 26 for forming the bottom face of tire recessed part on the front side of the seat back, a pair of top board inner side surface skins extending forward from both side edges to form both side faces of the recessed part, and a stopper surface skin, both side edges of which are connected to the upper edge and the front edge-upper part of both the top board inner side surface skins and which extends between both the side edges. At the storage position, the tip part of the second cushion of the child seat cushion is held by the stopper surface skin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat incorporating a foldable child seat cushion, and a device for holding the child seat cushion at a storage position in front of the seat back when not in use.

[0002]

2. Description of the Related Art In a child seat cushion of this type, for example, as disclosed in Japanese Utility Model Laid-Open No. 62-28641, the front portion of the width direction central portion of the seat back of a vehicle seat is divided in the front-rear direction. There is a child seat cushion formed by the front side of the child seat cushion so that the lower portion of the child seat cushion is foldable in the front-rear direction, and the child seat is formed by expanding the seat cushion on the seat cushion. However, in this conventional technique, since there is no device for holding the child seat cushion in the seat back in the stored state, the child seat cushion may float up from the seat back and become unsightly, or the child seat cushion may fall forward when the vehicle suddenly stops. .

On the other hand, each half of the hook-and-loop fastener is sewn to the front upper part of the seat back and the corresponding position of the child seat cushion, and the two half halves are engaged with each other to bring the child seat into the storage position. It can be locked.

[0004]

The surface fastener that is sewn to the front upper part of the seat back is exposed to the outside when the child seat is in the use position, and this surface fastener matches the color of the seat back surface cover. Therefore, there is a problem in that the surface fasteners provided on the front upper part of the seat back give a noticeable foreign substance feeling, and the appearance is deteriorated. Further, this type of hook-and-loop fastener is composed of one half portion provided with a large number of small elastic hooks and the other half portion provided with a large number of fiber loops, and one hook is entangled with the other loop to be engaged. If the half of the seat cushion is provided on the seat back side, fibers on the back of the seated child's clothes are entangled, and if it is provided on the child seat cushion side, fibers on the seat cushion seat surface are entangled, which may damage these materials. . An object of the present invention is to solve each of these problems.

[0005]

A vehicle seat to which the present invention is applied includes a seat cushion, a seat back that rises upward from a rear end thereof, a use position that is deployed above the seat cushion, and a seat back front side. The child seat cushion includes a child seat cushion whose base end is supported by a seat back frame so as to be foldable in the front-rear direction so that it can be opened and closed with respect to a storage position stored in the recess. The first portion is supported by the frame of the seat back so as to be foldable in the front-rear direction, and the second cushion is connected to the edge portion on the front end side of the first cushion so as to be foldable in the front-rear direction. The flexible seat back cover that covers the surface of the seat back is a top plate inner skin that forms the bottom surface of the recess at the front center of the seat back in the width direction, and extends forward from both side edges of the top plate inner skin. And a pair of top plate inner side skins forming both side surfaces of the recess, and stopper skins having both side edges connected to upper edges and upper front edges of the top plate inner side skins and extending therebetween.

In the state where the child seat cushion is housed in the recess on the front side of the seat back, a substantial portion of the tip of the second cushion is inserted and held between the top plate inner skin and the stopper skin.

The seat back cover may be substantially non-detachable from the seat back in a normal use position, or may cover the seat back so as to be easily detachable.

The first cushion is formed by covering the flexible first pad with the flexible first cover, and the second cushion is formed by covering the flexible second pad by the flexible second cover. In the storage position of each cover, it is preferable to connect the edges of the front side portions that are closest to each other with a flexible connecting band. Accordingly, the second cushion is connected to the edge portion of the first cushion on the front end side so as to be foldable in the front-rear direction.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the embodiments shown in FIGS. As shown mainly in FIG. 6, a vehicle seat including a seat cushion C and a seat back B which is attached to a rear portion of the seat cushion C via a reclining device 18 so as to be adjustable in inclination angle is a vehicle floor through a lower rail 10 and an upper rail 11. It is attached so that it can slide in the front-back direction. Left and right pair of lower rails 10
Are fixed to the floor of an automobile through front and rear brackets 10a, and a pair of left and right upper rails 11 integrally connected to each other by a connecting member 12 are guided and supported by a lower rail 10 so as to be slidable in the front-rear direction. The position in the front-rear direction is adjusted by a star (not shown).

As shown in FIGS. 1, 2 and 6, the seat back B mainly comprises a seat back frame 15, a seat back pad 19 and a seat back cover 20. The seat back frame 15 has a lower portion connected by a connecting member 15a, and three S springs 16 are provided between both side portions.
Is stretched, and each of these members 15, 15a, 16
The seat back pad 19, which is in contact with the front side of the seat back cover, is covered with a seat back cover 20 and attached to the seat back frame 15. A child seat cushion A, which will be described later, is provided at the front center of the seat back B in the width direction.
A recess Ba for accommodating the seat back pad is formed over the entire length in the vertical direction, and a recess corresponding to the recess is formed in the seat back pad 19.

As shown in FIGS. 1 to 5, the seat back B
The cover 20 has a large number of skins 21 cut into a predetermined shape.
~ 29 is sewn. A pair of left and right top plate inners that extend forward and form both side faces of the recess Ba are formed on both side edges of the top plate inner skin 26 that is located in the widthwise central portion on the front side of the seat back B and forms the bottom of the recess Ba. The side skin 24 is sewn on. A pair of left and right top plate side skins 23 extending outward in the left and right direction are sewn to the front and upper edges of each top plate inner side skin 24, and the upper part of the top plate side skin 23 is located behind the top plate inner skin 26. Has been extended to. Both side edges of the stopper skin 25 are sewn between the top plate side skins 23 and the upper sewn portions of the top plate inner side skins 24, and the front hanging portions thereof extend in parallel with the top plate inner skin 26. The stopper skin 25 also extends rearward from the top plate inner skin 26, and both rear side edges are sewn to the top side skin 23. The upper edge of the top plate inner skin 26 is sewn on the lower side of the intermediate portion of the upper surface of the stopper skin 25, whereby a downward pocket portion is formed in the upper part of the recess Ba.

The front and upper edges of a pair of left and right gusset side skins 22 are sewn on the outer side edges of the top side skin 23 to extend rearward, and each gusset side skin 22, top side skin 23, and stopper skin 25. The rear edge is sewn to both the side edges and the upper edge of the back and back skin 21 extending in the left-right direction at a considerable distance behind the top plate inner skin 26. The back edge and both side edges of a top board inner lower skin 27 are sewn to the lower edges of the top board inner skin 26 and the top board inner side skin 24, and the front edge of the top board inner lower skin 27 and the top board side skin 23 connected to this are joined. A lower top plate skin 29 extending downward is sewn to the lower edge of the bottom plate. The lower edge of each of the gusset side skins 22 is sewn with a gusset side lower skin 28 extending downward. A support shaft 34 for pivotally supporting a child seat cushion A, which will be described later, is provided on the top plate inner side skin 24.
A hole 24a for inserting a headrest stay (not shown) is formed in the stopper skin 25, and a hole 25a for inserting a headrest stay (not shown) is formed in the stopper skin 25. Hangers 21a and 29a formed by bending a plate made of synthetic resin having appropriate flexibility in a U-shaped cross section are sewn to the lower edges of the back and outer skins 21 and 29. Each of the skins 21 to 29 is made of a material that is elastic in the stretching direction and integrally provided with a cover pad of a flexible thin foam material on the back surface of a skin material such as woven fabric or leather.

As shown in FIG. 1 and FIG.
The seat back frame 15 on which the S spring 16 of the book is stretched and the seat back pad 19 abutted on the front side thereof are shown in FIG.
As shown in FIG. 4, the seat back cover 20 having the lower side opened is inserted from the lower side, both the gusset side lower skins 28 are folded inward, and each hanger 21a of the back back skin 21 and the lower edge of the top plate lower belt skin 29, The seat back B having the recess Ba on the front side is formed by hooking and closing 29a (see FIG. 2). Connecting member 15a under the seat back frame 15
A pair of left and right support brackets 17 are provided near both front ends of the
Is fixed by bolts or the like and extends forward through the seat back pad 19, and its tip is located immediately on the back surface (outer surface) of the top plate inner side skin 24. Lower portions on both sides of the seat back frame 15 are attached to the rear portion of each upper rail 11 via two sets of upper and lower arms 13a and 13b that are rotatably connected to each other.
The inclination angle of the seat back B is adjusted by changing the angle between 3a and 13b by the reclining device 18.

As shown mainly in FIGS. 1 and 2, a seat back B is provided with a child seat cushion A including rectangular first and second cushions 30 and 35.
It is foldably supported between a use position in which it is placed on the seat cushion C and a storage position in which the seat cushion is extended and stored in the recess Ba on the front side of the seat back B. As shown in FIGS. 1 and 2, the first cushion 30 is a cushion plate 3 made of sheet metal or synthetic resin.
3, a first pad 31 that is in contact with both sides of the first pad 31 and is made of a flexible foam material, and a first cover 32 that covers the first pad 31 and the first pad 31 and the cushion plate 33 are inserted into and removed from the first cover 32. Slide fasteners 32a are provided. The base end of the first cushion 30 is sandwiched between the support brackets 17 provided on the connecting member 15a, and a pair of ears bent and formed on both sides of the cushion plate 33 on the base end side extend in the left-right direction. The front end of each support bracket 17 is rotatably supported via the support shaft 34, whereby the first cushion 30 can be folded in the front-rear direction.

The second cushion 35 is formed by covering the second pad 36 made of a flexible foam material with the second cover 37. The first and second cushions 30 and 35 are mainly formed as shown in FIG. At the storage position of each of the covers 32 and 37, the edges of the front side portions that are closest to each other are connected by a flexible connecting band 38. The connecting strip 38 is a strip of durable fabric of the same color as the covers 32, 37, the side edges of which are sewn between the seams of the edges of the cushions 30, 35, whereby the cushions 30, 3 are sewn together.
5 are connected to each other so as to be foldable in the front-back direction. Second
The cover 37 is provided with a slide fastener 37a for inserting and removing the second pad 36.

As shown by the chain double-dashed lines 30A and 35A in FIG. 1 and the solid line in FIG. 2, the child seat cushion A is
In the state of being housed in the recess Ba on the front side of the seat back B, a substantial portion of the tip of the second cushion 35 is inserted and held between the top plate inner skin 26 and the stopper skin 25. Therefore, the child seat cushion A does not float up from the seat back B and is unsightly, and there is no possibility that the child seat cushion A will fall forward when the vehicle suddenly stops.

In order to deploy the child seat cushion A from this storage position onto the seat cushion C, first, as shown by the chain double-dashed lines 30B and 35B in FIG. 1, both cushions 30 and 35 are connected so as to form a dogleg shape. To the front side, and the tip of the second cushion 35 is the stopper skin 25.
When the second cushion 35 is separated from the first cushion 30, the second cushion 35 is rotated around the connecting band 38 as shown by an arrow D to fold it to the front side of the first cushion 30.
Rotate forward around. As a result, the child seat cushion A is folded and unfolded on the seat cushion C as shown by the solid line in FIG. 1, and the child seat cushion A is in a use position where a child sits on it.

In the above embodiment, the seat back cover 20 directly covers the pad 19 and cannot be detached from the seat back B, but
The present invention can also be applied to a seat back cover that is detachably attached to the seat back B to prevent dirt.

[0019]

As described above, according to the present invention, in the child seat cushion, since the corresponding portion of the tip of the second cushion is inserted and held between the top plate inner skin and the stopper skin in the storage position, the child seat cushion is held. The cushion does not float up from the seat back and is not unsightly, and the child seat cushion does not fall forward when the vehicle suddenly stops. Since the seat back surface including the stopper skin and the child seat cushion surface can be made of the same material, there is no possibility that the appearance will be deteriorated in both the use position and the storage position.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a vehicle seat equipped with a child seat cushion holding device according to the present invention in a use position.

FIG. 2 shows a main part of the holding device according to the embodiment shown in FIG.
It is an expanded longitudinal cross-sectional view in a storage position.

FIG. 3 is an enlarged cross-sectional view taken along line 3-3 of FIG.

FIG. 4 is an enlarged cross-sectional view taken along the line 4-4 of FIG.

5 is a perspective view of the seat back cover of the embodiment shown in FIG. 1 with the left half omitted. FIG.

FIG. 6 is a perspective view mainly showing a frame portion of the embodiment shown in FIG.

[Explanation of symbols]

15 ... Frame (seat back frame), 20 ... Seat back cover, 24 ... Top plate inner side skin, 25 ...
Stopper skin, 26 ... Top plate inner skin, 30 ... First cushion, 31 ... First pad, 32 ... First cover, 35 ...
Second cushion, 36 ... Second pad, 37 ... Second cover, 38 ... Connecting band, A ... Child seat cushion,
B ... Seat back, Ba ... Recess, C ... Seat cushion.

Claims (4)

[Claims] 1. A seat cushion, a seat back that rises upward from a rear end thereof, a use position that is deployed above the seat cushion, and a storage position that is stored in a recess on the front side of the seat back. A vehicle seat comprising a child seat cushion whose base end is supported by the frame of the seat back so as to be foldable in the front-rear direction so that the child seat cushion has a base end in the front-rear direction of the frame of the seat back. A first cushion supported so as to be foldable to the second cushion, and a second cushion foldably connected to an edge portion on the front end side of the first cushion, the flexible seatback cover covering the surface of the seatback. The bottom surface of the recess is formed at the center of the front side of the seat back in the width direction. A top plate inner skin, a pair of top plate inner side skins extending forward from both side edges of the top plate inner skin to form both side surfaces of the recess, and upper and front edges of the two top plate inner side skins. A holding device for a child seat cushion, characterized in that the upper part of the child seat cushion is connected to both side edges and extends between them. 2. The holding device for a child seat cushion according to claim 1, wherein the seat back cover is substantially non-detachable from the seat back in a normal use position. 3. The child seat cushion holding device according to claim 1, wherein the seat back cover covers the seat back so that the seat back can be easily attached and detached in a normal use position. 4. The first cushion includes a flexible first pad covered with a flexible first cover, and the second cushion includes a flexible second pad covered with a flexible second cover. The child seat cushion holding device according to claim 1, 2, or 3, wherein the edges of the respective front portions of the respective covers of the respective covers that are closest to each other are connected by a flexible connecting band.