WO2022185904A1

WO2022185904A1 - Inner cushion for child seat

Info

Publication number: WO2022185904A1
Application number: PCT/JP2022/006023
Authority: WO
Inventors: 俊一蓮見; 尚之田村; 拓孝岡
Original assignee: 株式会社カーメイト
Priority date: 2021-03-05
Filing date: 2022-02-15
Publication date: 2022-09-09
Also published as: JP2022135242A

Abstract

[Problem] To provide an inner cushion for a child seat, the cushion having improved safety for a newborn infant in the event of a rear collision. [Solution] This inner cushion (10) for a child seat is characterized by comprising: an inner cushion body (30) that is additionally attached to a seat body (15) of a vehicle child seat provided with a shoulder harness (16), and that has a head cushion (32) and a body cushion (34); and a pad cover (40) that is fixed to the inner cushion body (30), and that covers a slide-proof section (22) of a harness cover (20) of the shoulder harness (16).

Description

child seat inner cushion

The present invention relates to an inner cushion (hereinafter simply referred to as an inner cushion) of a child seat worn by a newborn when riding in a vehicle.

Motor vehicle drivers are required by law to use child seats when carrying children under the age of six.
The vehicle child seat disclosed in Patent Document 1 includes a seat body on which an infant sits, a seat belt having a shoulder harness for restraining the infant, a shoulder pad interposed between the shoulder of the infant and the shoulder harness, and a shoulder pad inside. It is equipped with a harness cover that accommodates and attaches to the shoulder harness. A non-slip portion is provided on the back side of the harness cover, in other words, the portion that contacts the shoulder of the infant to increase the frictional resistance against the shoulder harness, restrict the forward movement of the infant in the event of a collision, and prevent the infant from moving forward during normal riding. To prevent the pad from being carelessly displaced from the infant's shoulder.

The vehicle seat device disclosed in Patent Document 2 is a unit originally provided in a child seat or a junior seat, and includes a headrest unit, a seat cover unit, and a shoulder cushion unit. The height is adjustable and the shoulder cushion unit is integrally formed directly connected to the headrest unit and manufactured from a common piece of material.
7 and 8 are explanatory diagrams showing the state of a child seat used by a newborn before and after a rear-end collision, and when the rear-end collision occurs. As shown in FIG. 7, the child seat 11 used by the infant 2 additionally includes an inner cushion 10a and is generally used facing rearward so that the infant 2 faces the vehicle seat 12. As shown in FIG. In the event of a rear-end collision of the vehicle in such a state of use, as shown in FIG. ) and collapses. Thereafter, as shown in FIG. 7, the base 14 is struck against the seating surface of the vehicle seat 12 and comes to rest. Conventionally, since the harness cover 20 of the shoulder harness 16 for restraining the newborn 2 is provided with the anti-slip portion 22 at the portion that contacts the shoulder of the newborn 2, the friction surface of the anti-slip portion 22 prevents the body from moving. Since the head moves freely, the movement of the head relative to the body increases and the load on the neck increases. In addition, the frictional surface of the non-slip portion 22 restricts the distance that the head separates from the headrest, and the moment when the child seat lands and rises again coincides with the timing when the head lands on the headrest. (load on parts) increases.

Japanese Patent No. 5643281 Japanese Patent No. 5704462

The problem to be solved by the present invention is to provide an inner cushion for a child seat that enhances the safety of a newborn in the event of a rear-end collision, in view of the problems of the prior art.

As a first means for solving the above problems, the present invention provides an inner cushion main body which is additionally attached to a seat main body of a vehicle child seat provided with a shoulder harness and has a head cushion and a body cushion,
To provide an inner cushion for a child seat, characterized by comprising a pad cover fixed to the inner cushion main body and covering a non-slip portion of the harness cover of the shoulder harness.
According to the first means, the non-slip portion of the harness cover is originally effective in restricting the forward movement of an infant who uses the harness cover in the event of a collision to ensure safety. Although it has a structure that cannot be removed from the cover, in the case of a newborn baby that is used facing backwards, by covering the non-slip portion of the harness cover, the original role of the non-slip is not fulfilled.
Therefore, even if a newborn is rear-facing in a child seat and is hit from the rear, the conventional non-slip effect suppresses the movement of the head relative to the body, greatly reducing the burden on the neck of the newborn. can be reduced to In addition, the appropriate sliding effect of the shoulders of the newborn and the shoulder harness makes it possible to shift the timing of the landing of the newborn's head further backward than the timing when the child seat itself lands and floats again, greatly reducing the load on the newborn's head. can be reduced.
Conventionally, when a newborn baby uses the harness cover, the non-slip effect makes the baby feel uncomfortable, but the contact between the non-slip portion and the baby can be avoided.
Since the pad cover is fixed to the inner cushion, it is always used when the newborn baby uses the inner cushion, so that forgetting to attach the pad cover can be prevented. Since infants larger than newborns do not use inner cushions, they inevitably do not use pad covers. Therefore, when an infant uses the harness cover, the original non-slip portion of the harness cover functions, and the effect of suppressing the amount of movement of the infant's head at the time of a frontal collision can be obtained.

As a second means for solving the above problems, the present invention provides a child seat inner according to the first means, wherein the pad cover is made of a material having a smaller coefficient of friction than the non-slip portion. It is to provide a cushion.
According to the second means, in addition to the effect of the first means, the load on the neck can be reduced by positively sliding the pad cover in the event of a rear-end collision of the newborn infant used facing backwards. Conventionally, when a newborn baby uses a harness cover, the anti-slip effect of the non-slip portion makes the baby feel uncomfortable on the skin, but the material with a small friction coefficient improves the feel.

As a third means for solving the above problems, the present invention provides a child seat according to the first or second means, wherein the pad cover is fixed to a cover that covers the inner cushion body. To provide an inner cushion.
According to the third means, the cover covering the inner cushion main body can be removed from the main body, and can be easily washed or replaced together with the pad cover.

As a fourth means for solving the above problems, the present invention is characterized in that, in any one of the first to third means, the pad cover has a fixing portion that can be attached to and detached from the harness cover. To provide an inner cushion for a child car seat.
According to the fourth means, the position of the pad cover covering the harness cover is displaced during use, for example, the pad cover is displaced due to the movement of a newborn baby while riding, so that the non-slip portion is not exposed. Therefore, it can play a role of avoiding the anti-slip effect of the anti-slip portion. Also, the pad cover can be securely attached to the harness cover.

As a fifth means for solving the above problems, the present invention provides any one of the first to fourth means, wherein the pad cover expands and contracts along the longitudinal direction of the harness cover when worn on the newborn baby. To provide an inner cushion for a child seat characterized by using a material that
According to the fifth means, in addition to the effect of the first means, when the pad cover is put on, wrinkles are generated on the surface that comes into contact with the shoulders of the newborn, and the same anti-slip effect as the anti-slip portion is generated. You can avoid getting lost.

According to the present invention, the non-slip portion of the harness cover is effective in ensuring safety by restricting the forward movement of an infant, who is used facing forward, in the event of a collision, and can be removed from the harness cover. However, in the case of a newborn baby who is facing backwards, by covering the non-slip part of the harness cover, the role of the original non-slip function is eliminated.
Therefore, even if a newborn is rear-facing in a child seat and is hit from the rear, the conventional non-slip effect suppresses the movement of the head relative to the body, greatly reducing the burden on the neck of the newborn. can be reduced to In addition, the appropriate sliding effect of the shoulders of the newborn and the shoulder harness makes it possible to shift the timing of the landing of the newborn's head further backward than the timing when the child seat itself lands and floats again, greatly reducing the load on the newborn's head. can be reduced.

1 is a perspective view of an inner cushion of a child seat of the present invention; FIG. 1 is a perspective view of a child seat with an inner cushion for a child seat according to the present invention; FIG. Fig. 1 is an explanatory drawing 1 for attaching a pad cover of an inner cushion to a harness cover; Fig. 2 is an explanatory diagram 2 for attaching the pad cover of the inner cushion to the harness cover; It is the perspective view which looked at the pad cover attached to the harness cover from the front side. It is the perspective view which looked at the pad cover attached to the harness cover from the back side. FIG. 4 is an explanatory diagram showing the state of a child seat used by a newborn before and after a rear-end collision; FIG. 10 is an explanatory diagram showing a rear-end collision of a child seat used by a newborn;

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of an inner cushion for a child seat according to the present invention will be described in detail below with reference to the drawings.
[Child seat inner cushion 10]
FIG. 1 is a perspective view of an inner cushion of a child seat according to the present invention. FIG. 2 is a perspective view of a child seat equipped with an inner cushion for the child seat of the present invention.
As shown in FIG. 2 , the child seat 11 includes a base 14 and a seat body 15 .
The base 14 can be fixed to a vehicle seat (not shown) via ISOFIX 13, an international standard. Alternatively, the base 14 may be fixed to the vehicle seat using a vehicle seat belt.

The seat body 15 is a seat cushion on which an infant sits, and is provided with a seat belt. The seat belt has a pair of left and right shoulder harnesses 16 and a crotch strap 18 connected via a buckle 17 . The seat body 15 can be rotatably attached to the base 14, and the child seat 11 shown in FIG. 2 has the seat body 15 attached to the base 14 so that the newborn faces the back side of the vehicle seat.
A shoulder harness 16 and a pair of harness covers 20 are attached (see FIGS. 7 and 8). The harness cover 20 is a cover attached so as to be wrapped around the portion of the shoulder harness 16 that contacts the infant's shoulder, and has a shoulder pad (not shown) inside. A non-slip portion 22 is provided on the rear surface of the harness cover 20, in other words, on the portion that contacts the infant's shoulder, thereby obtaining the effect of suppressing the amount of movement of the infant's head in the event of a frontal collision.

The inner cushion 10 of the present invention is additionally attached to a seat body 15 of a child seat for a vehicle, and has a recess 36 between a head cushion 32 and a body cushion 34 through which the shoulder harness 16 of the seat body 15 is passed. A pad cover 40 is fixed to the recess 36 and wound around the harness cover 20 of the shoulder harness 16 to cover the non-slip portion 22 of the harness cover 20 .
The inner cushion main body 30 comprises a head cushion 32 for protecting the head of the newborn and a body cushion 34 for protecting the trunk of the newborn, and is made of a sponge material having a predetermined elasticity. A recess 36 through which the shoulder harness 16 is passed is provided between the head cushion 32 and the body cushion 34 . Due to the configuration of this concave portion 36 , the inner cushion can be easily attached between the seat body 15 and the shoulder harness 16 . The inner cushion main body 30 made of sponge material is preferably covered with a cloth cover. In addition to hook-and-loop fasteners, hooks, and buttons, the cover has an opening that can be opened and closed by sewing the fabric of the opening part so that it folds up and forming the inside like a pocket, so that the main body can be taken in and out. It is preferable to have a configuration that facilitates replacement and washing.

The pad cover 40 is a cover that is fixed to the recess 36 and wrapped around the harness cover 20 of the shoulder harness 16 passing through the recess 36 to cover it. The pad cover 40 is fixed to the string 37 fixed to the recess 36 and has an integrated structure that cannot be separated from the inner cushion main body 30 .
FIG. 3 is an explanatory drawing 1 for attaching the pad cover of the inner cushion to the harness cover. FIG. 4 is an explanatory diagram 2 for attaching the pad cover of the inner cushion to the harness cover. FIG. 5 is a front perspective view of the pad cover attached to the harness cover. FIG. 6 is a perspective view of the pad cover attached to the harness cover as seen from the rear side. The pad cover 40 is a substantially rectangular member made of cloth that folds in three to cover the entire harness cover 20 (see FIG. 3). The pad cover 40 is provided with a fixing portion 42 for fixing to the harness cover 20 and an attachment portion 44 wound around the harness cover 20 to be closed (see FIG. 4).

The fixing part 42 is a hook button-type fastener consisting of a female part 42b on the surface of the harness cover 20 (front side of the child seat 11) and a male part 42a provided on the inner surface of the pad cover 40 facing this surface. In addition, the fixing portion 42 may have a structure capable of fixing the pad cover 40 to the harness cover 20, and a surface fastener or the like may be used. The structure of the fixing part 42 can prevent the position of the pad cover covering the harness cover from being displaced during use, for example, the exposure of the non-slip part due to the displacement of the pad cover due to the movement of a newborn baby during riding. Therefore, it can play a role of avoiding the anti-slip effect of the anti-slip portion. Also, the pad cover can be securely attached to the harness cover.
The mounting portion 44 is a hook button type fastener consisting of a female portion 44b and a male portion 44a for fastening the pad cover 40 folded in three and wound around the harness cover 20. can be fixed, and a hook-and-loop fastener or the like can also be used.

The pad cover 40 is a cover wrapped around the harness cover 20 to cover the non-slip portion 22 of the harness cover 20, and is made of a member having a smaller coefficient of friction than the non-slip portion. In this embodiment, as an example, polyester or cotton fabric can be used, and embossed smooth fabric is used. As a result, the non-slip portion of the harness cover is effective in ensuring safety by restricting the forward movement of infants who use the harness cover in the event of a collision. However, in the case of a newborn baby who is facing backwards, covering the non-slip portion of the harness cover does not play the original role of non-slip.
Therefore, even if a newborn is rear-facing in a child seat and is hit from the rear, the conventional non-slip effect suppresses the movement of the head relative to the body, greatly reducing the burden on the neck of the newborn. can be reduced to In addition, the appropriate sliding effect of the shoulders of the newborn and the shoulder harness makes it possible to shift the timing of the landing of the newborn's head further backward than the timing when the child seat itself lands and floats again, greatly reducing the load on the newborn's head. can be reduced.
Conventionally, when a newborn baby uses the harness cover, the non-slip effect makes the baby feel uncomfortable, but the contact between the non-slip portion and the baby can be avoided.
In addition, the pad cover 40 uses a material that expands and contracts along the longitudinal direction of the harness cover 20 when worn on the newborn baby. Specifically, the smooth fabric is arranged along the longitudinal direction of the harness cover 20 . Here, the horizontal direction is the direction in which the fabric stretches, and the vertical direction is the direction in which the fabric does not stretch. As a result, when the pad cover is put on, it is possible to avoid the occurrence of wrinkles on the surface in contact with the shoulders of the newborn and the occurrence of the same non-slip effect as the non-slip portion.

[Action]
The inner cushion 10 of the present invention having such a configuration functions as follows. The shoulder harness 16 is passed through the recess 36 of the inner cushion 10, and the inner cushion body 30 is attached between the seat body 15 and the shoulder harness 16.例文帳に追加
Next, the pad cover 40 that has been folded in three is opened, and the harness cover 20 is aligned with the inner central portion (see FIG. 3). The surface of the harness cover 20 and the fixing portion 42 provided on the inner surface of the pad cover 40 are fixed (see FIG. 4). Further, the pad cover 40 covering the harness cover 20 is closed and fixed by the mounting portion 44 of the pad cover 40 (see FIG. 5).
Such a pad cover 40 can cover the non-slip portion 22 of the harness cover 20 (see FIG. 6).

Therefore, even if a newborn is rear-facing in a child seat and is hit from the rear, the conventional non-slip effect suppresses the movement of the head relative to the body, greatly reducing the burden on the neck of the newborn. can be reduced to In addition, the appropriate sliding effect of the shoulders of the newborn and the shoulder harness makes it possible to shift the timing of the landing of the newborn's head further backward than the timing when the child seat itself lands and floats again, greatly reducing the load on the newborn's head. can be reduced.
The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications are possible without departing from the gist of the present invention.
Moreover, the present invention is not limited to the combinations shown in the embodiments, and can be implemented in various combinations.

1a head cushion 2

newborn 2a head

10, 10a child seat inner cushion 11 child seat 12 vehicle seat 13 ISOFIX
14 Base 15 Seat body 16 Shoulder harness 17 Buckle 18 Crotch strap 20 Harness cover 22 Non-slip portion 30 Inner cushion body 32 Head cushion 34 Body cushion 36 Recess 37 String 40 Pad cover 42 Fixed portion

42a Male portion

42b Female portion 44 Mounting portion 44a Male portion 44b Female portion

Claims

an inner cushion body additionally attached to a seat body of a vehicle child seat having a shoulder harness and having a head cushion and a body cushion;
An inner cushion for a child seat, comprising a pad cover fixed to the inner cushion body and covering a non-slip portion of the harness cover of the shoulder harness.
An inner cushion for a child seat according to claim 1,
An inner cushion for a child seat, wherein the pad cover is made of a material having a coefficient of friction smaller than that of the non-slip portion.
An inner cushion for a child seat according to claim 1 or claim 2,
An inner cushion for a child seat, wherein the pad cover is fixed to a cover that covers the inner cushion body.
An inner cushion for a child seat according to any one of claims 1 to 3,
An inner cushion for a child seat, wherein the pad cover has a fixing part that can be attached to and detached from the harness cover.
An inner cushion for a child seat according to any one of claims 1 to 4,
An inner cushion for a child seat, wherein the pad cover is made of a material that expands and contracts along the longitudinal direction of the harness cover when worn on a newborn baby.