JPH09156405A - Child safety seat for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To further improve safety at the time of a collision by providing high-coefficient of friction sections having a coefficient of friction higher than that of a bottom face on the bottom face, and suppressing the overturn or displacement of a child safety seat for automobile based on the frictional force between it and the seat surface of the automobile. SOLUTION: The bottom face 2a of a child seat 1 is formed with a plastic, a recess 3 is provided at the center section, and antiskid sheets 4 are stuck on four corner sections of the bottom face 2a. The antiskid sheet 4 is made of a low-foaming material such as styrene-butadiene rubber, it has a coefficient of friction higher than that of the bottom face 2a, and it is stuck to the bottom face 2a via a double-coated tape or an adhesive. The antiskid sheet 4 may be stuck to the whole bottom face 2a, or a substance having a coefficient of friction higher than that of the bottom face 2a may be fitted via screws or rivets.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a child safety seat for an automobile, which is placed on a seat of an automobile and fixed to the seat by a seat belt provided on the seat.

[0002]

2. Description of the Related Art A child safety seat for an automobile (hereinafter, simply referred to as a "child seat") mounted on a seat of an automobile has been known. An example of this child seat is shown in FIG. FIG. 7 is a perspective view showing an example of a conventional child seat.

Referring to FIG. 7, the child seat 1 is
It is mounted on a seat 20 of an automobile and fixed to the seat 20 by a seat belt 21 provided on the seat 20. At that time, the clip 22 or the like shown in FIG. 7 is often used. The child seat 1 includes a base portion 2 made of plastic or the like, and the bottom surface of the base portion 2 is placed on the surface of the seat 20.

FIG. 8 is a perspective view showing a back surface and a bottom surface of the conventional child seat 1 as described above. Referring to FIG. 8, the base portion 2 of the child seat 1 is made of plastic or the like, and has a bottom surface 2a and a side wall 2b provided so as to stand upright from the peripheral portion of the bottom surface 2a. Further, as shown in FIG. 8, the connecting portion between the side wall 2b and the bottom surface 2a is usually formed by a smooth curved surface. Thereby, it becomes possible to effectively prevent the surface of the seat 20 of the automobile from being damaged.

[0005]

However, the above-mentioned conventional child seat 1 has the following problems.

As mentioned above, the base portion 2 of the child seat 1 is usually made of a light and relatively rigid material such as plastic, and its peripheral portion is smooth so as not to damage the seat 20 of the automobile. It is composed of curved surfaces. Further, as shown in FIG. 8, the bottom surface 2a of the child seat 1 has not conventionally been generally devised to prevent slipping on the seat of the automobile.

Therefore, it is possible that the bottom surface 2a of the child seat 1 slips on the seat 20 of the vehicle when the inertial force is suddenly applied to the child seat 1 due to a collision of the vehicle. This child seat 1 is shown in FIG.
As shown in FIG. 3, since it is firmly fixed to the seat 20 of the automobile by the seat belt 21, the safety of the child sitting on the child seat 1 even when the automobile collides as described above. It is considered that there is almost no problem, but it is considered that the safety can be further improved by suppressing the bottom surface 2a of the child seat 1 from slipping on the seat 20 as described above.

Further, as described above, the child seat 1
If the bottom surface 2a of the vehicle is not slipped, the child seat 1 may be displaced on the seat 20 of the vehicle even while the vehicle is driving. As a result, the child seat 1 becomes a car seat 2
It is conceivable that the child cannot lean comfortably on the child seat 1 because the child leans on 0.

The present invention has been made to solve the above problems. One object of the present invention is to
It is an object of the present invention to provide a child seat that can further improve the safety of a child sitting in the child seat.

Another object of the present invention is to provide a child seat on which a child can spend comfortably and comfortably while driving a vehicle.

[0011]

A child safety seat (child seat) for an automobile according to the present invention is mounted on a seat of an automobile and fixed to the seat by a seat belt provided on the seat. The bottom surface of the child safety seat for a vehicle according to the present invention is provided with a high friction coefficient portion made of a material having a higher friction coefficient than that of the material forming the bottom surface.

As described above, since the high coefficient of friction portion is provided on the bottom surface of the child safety seat for an automobile, the frictional force between the high friction coefficient portion and the seat surface causes, for example, a collision of the automobile. This inertial force can effectively prevent the child safety seat for automobiles from falling. As a result, it becomes possible to further improve the safety in the event of a car collision or the like. Also, due to the above frictional force,
It is also possible to effectively suppress the displacement of the child safety seat for a vehicle while the vehicle is driving. This effectively restrains the vehicle child safety seat from tilting on the seat while the vehicle is driving, and allows the child to comfortably and comfortably ride on the vehicle child safety seat.

The high friction coefficient portion is preferably formed by a non-slip sheet attached to the bottom surface of the child safety seat for automobiles. And this non-slip sheet is preferably selectively attached to the peripheral portion of the bottom surface of the child safety seat for automobiles. In this way, by selectively affixing to the peripheral portion of the bottom surface of the child safety seat for automobiles, approximately the same degree as when affixing to the entire bottom surface,
It is possible to sufficiently suppress the displacement of the child safety seat for automobiles. Further, it is possible to reduce the material cost as compared with the case where the non-slip sheet is attached to the entire bottom surface.

When the bottom surface of the child safety seat for an automobile has four corners, it is preferable that the above-mentioned non-slip sheets are attached to the four corners, respectively. As a result, not only lateral displacement of the child safety seat for automobiles but also longitudinal displacement can be effectively suppressed, and the material cost of the anti-skid seat can be further reduced. .

A recess is preferably provided in the center of the bottom of the child safety seat for automobiles, and the anti-slip sheet is attached to the bottom located around the recess. In this way, by providing a recess in the center of the bottom surface of the child safety seat for automobiles, even when the child safety seat for automobiles is placed on the convex portion of the surface of the seat of the automobile, the child safety seat for automobiles is provided. The peripheral portion of the bottom surface of the seat can almost certainly be brought into contact with the surface of the seat. As a result, the non-slip seat and the surface of the seat of the automobile can be brought into contact with each other almost certainly, and it becomes possible to effectively suppress the displacement of the child safety seat for automobiles.

The child safety seat for automobiles preferably has a side wall rising from the peripheral edge of the bottom surface, and the non-slip sheet is attached so as to extend onto the side wall. As a result, when the peripheral portion of the bottom surface of the child safety seat for an automobile is embedded in the surface of the automobile seat,
It is possible to bring the non-slip sheet attached on the side wall into contact with the surface of the seat. As a result, it becomes possible to more effectively suppress the displacement of the child safety seat for automobiles than in the above case. As one method for attaching the non-slip sheet so as to extend from the peripheral portion of the bottom surface to the side wall that rises as described above, the following method can be mentioned. In addition,
The method described below assumes the case where a non-slip sheet is attached on the corner of the bottom surface of a child safety seat for an automobile. Here, assuming that the corner portion of the bottom surface of the child safety seat for an automobile is defined by the curve of the first curvature, the above-mentioned non-slip sheet is defined by the curve of the second curvature larger than the first curvature. The shape is selected to have a corner that is cut. Then, the non-slip sheet is attached so that the corner portion of the non-slip sheet is located on the corner portion of the bottom surface of the child safety seat for automobiles. Thereby, it becomes possible to extend the above-mentioned non-slip sheet from the bottom surface of the child safety seat for automobiles to the side wall rising from the peripheral portion of the bottom surface.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 is a bottom view of an automobile child safety seat (child seat) 1 according to an embodiment of the present invention.

The bottom surface 2a of the child seat 1 is made of a lightweight and highly rigid material such as plastic and has a recess 3 in the center thereof. In this case, as shown in FIG. 1, a circular recess 3 is provided. In this case, the bottom surface 2a has four corners, and the anti-slip sheet 4 is attached to each of the four corners. The anti-slip sheet 4 is made of, for example, a low foam material such as styrene-butadiene rubber, and has a higher friction coefficient than the bottom surface 2a. And such a non-slip sheet 4
Is attached to the bottom surface 2a with a double-sided tape or an adhesive.

In FIG. 1, the case where the four anti-slip sheets 4 are selectively attached on the four corners of the bottom surface 2a has been described, but the anti-slip sheets 4 are attached to the entire surface of the bottom surface 2a. It may be attached, or may be selectively attached to the peripheral portion of the bottom surface 2 a located around the depression 3. Further, instead of the anti-slip sheet 4, a substance having a friction coefficient higher than that of the bottom surface 2a may be attached to the bottom surface 2a by using a screw or a rivet, and the bottom surface 2a is selectively altered. A portion having a relatively high friction coefficient may be provided on the bottom surface 2a by (physically or chemically). Further, the bottom surface 2a is molded with a material having a higher melting point than that of the bottom surface 2a and having a friction coefficient higher than that of the bottom surface 2a is inserted into the molding die of the bottom surface 2a. It may be attached to the bottom surface 2a by so-called insert molding.

Next, the attachment position of the anti-slip sheet 4 shown in FIG. 1 will be described in more detail with reference to FIG. FIG. 2 is an enlarged view of the bottom surface 2a in FIG.

Referring to FIG. 2, the bottom surface 2a has four corner portions 5, and by connecting a pair of corner portions 5 facing each other out of the four corner portions 5, a diagonal line 6a, 6b is obtained. Areas 7a, which are located near the corners 5 and on both sides of the diagonal lines 6a, 6b,
Consider 7b, 7c, 7d, 7e, 7f, 7g, 7h. The non-slip sheet 4 has regions 7a and 7b, 7c and 7d, 7e and 7f, 7 which are adjacent to each other.
It is attached on the bottom surface 2a so as to cover g and 7h, respectively. At this time, the non-slip sheet 4 is placed in the areas 7a, 7
By covering d, 7e, and 7h, the positional displacement of the bottom surface 2a in the front-rear direction according to the arrows 8a and 8b is effectively suppressed,
By covering the regions 7b, 7c, 7f, 7g with the non-slip sheet 4, positional deviation in the left-right direction following the arrows 10a, 10b is effectively suppressed.

FIG. 3 is a side view showing a state in which the child seat 1 having the anti-skid seat 4 as described above is placed on the seat 20 of the automobile. As shown in FIG. 3, the bottom surface 2a of the base portion 2 of the child seat 1 is in contact with the surface of the seat 20 of the automobile in the areas 9a and 9b. Then, although not shown, the non-slip sheet 4 is attached to the bottom surface 2a located in the areas 9a and 9b. Thereby, it is possible to effectively suppress the positional displacement of the child seat 1 in the front-rear direction (the direction following the arrows 8a and 8b).

Although not shown in FIG. 3, since the child seat 1 is normally fixed to the seat 20 of the vehicle by a seat belt provided in the seat 20 of the vehicle, the child seat 1 is displaced in the longitudinal direction. It is considered that there is not much, but when the inertial force in the front-rear direction is applied to the child seat 1 in an emergency such as a car collision, it is effective that the child seat 1 falls forward as indicated by the arrow 8a together with the seat belt. It becomes possible to prevent it.

FIG. 4 shows the convex portion 2 on the surface of the seat 20 of the automobile.
0a exists, and the child seat 1 is placed on the convex portion 20a.
It is a front view which shows the case where is mounted. In such a case, as shown in FIGS. 1 and 2, since the depression 3 is provided in the center of the bottom surface 2a of the child seat 1, the peripheral portion of the bottom surface 2a located around this depression 3 is seated on the seat. Can be brought into contact with the surface of the. Thereby,
In the regions 11a and 11b, it becomes possible to bring the anti-skid sheet 4 into contact with the surface of the seat. Thereby, it becomes possible to effectively suppress the positional displacement of the child seat 1 in the left-right direction following the arrows 10a and 10b.

Next, with reference to FIGS. 5 and 6, the shape of the anti-slip sheet 4 and the method for attaching the same will be described in more detail. FIG. 5 is an enlarged perspective view showing a corner portion of the bottom surface 2a to which one anti-slip sheet 4 is attached and its vicinity.

Referring to FIG. 5, anti-slip sheet 4 is preferably shaped to have corners 4a.
The anti-slip sheet 4 may be attached from the bottom surface 2a to the surface of the side wall 2b so that the corner portion 4a extends on the side wall 2b provided so as to rise from the peripheral portion of the bottom surface 2a. preferable. Thereby, for example, when the peripheral portion of the bottom surface 2a of the child seat 1 is recessed into the seat of the automobile, the corner portion 4a of the anti-slip seat 4 can be brought into contact with the surface of the seat of the automobile. As a result, it becomes possible to further effectively suppress the displacement of the child seat 1.

Next, features of the shape of the corner portion 4a of the anti-slip sheet 4 will be described with reference to FIG. FIG.
It is the figure which expanded the corner part 5 of the bottom face 2a, and its vicinity. Referring to FIG. 6, the corner portion 4a of the anti-slip sheet 4
It is preferable that the curvature of the curve defining the above is selected to be larger than the curvature of the curve defining the corner portion 5 of the bottom surface 2a. That is, the shape of the corner portion 4a is selected such that the radius of curvature of the curve defining the corner portion 4a is smaller than the radius of curvature of the curve defining the corner portion 5 of the bottom surface 2a. With such a shape, the side wall 2b
It becomes possible to attach the anti-slip sheet 4 so as to extend up.

As a method for suppressing the displacement of the child seat 1, there is also a method in which the anti-slip sheet 4 is not attached to the bottom surface of the child seat 1 and is simply interposed between the seat of the automobile and the bottom surface 2a of the child seat 1. Conceivable. However, as described above, the bottom surface 2a of the child seat 1 is usually made of plastic or the like, and therefore, simply laying the anti-slip sheet 4 under the bottom surface 2a as described above can obtain the same effect as the invention of the present application. It is thought that it cannot be done.

Although the embodiments of the present invention have been described above, it should be considered that the embodiments disclosed this time are exemplifications in all points and not restrictive. The scope of the invention is indicated by the claims,
It is intended that all modifications within the meaning and range of equivalency of the claims be included.

[Brief description of the drawings]

FIG. 1 is a bottom view of a child seat according to an embodiment of the present invention.

FIG. 2 is a diagram showing a bottom surface of a child seat.

FIG. 3 is a side view showing a state in which a child seat is placed on a vehicle seat.

FIG. 4 is a front view showing a state in which a child seat is placed on a seat of an automobile.

FIG. 5 is an enlarged perspective view showing a corner portion on the bottom surface of the child seat to which one anti-slip sheet is attached and its vicinity.

FIG. 6 shows the curvature of the corner portion of the bottom surface of the child seat,
It is a figure for comparing with the curvature of the corner part of a non-slip sheet.

FIG. 7 is a perspective view showing an example of a conventional child seat.

FIG. 8 is a perspective view of a conventional child seat as viewed from the bottom side.

[Explanation of symbols]

1 Child Seat 2 Base Part 2a Bottom Surface 2b Sidewall 3 Dimple 4 Anti-Slip Sheet 4a, 5 Corner Part 6a, 6b Diagonal Lines 7a, 7b, 7c, 7d, 7e, 7f, 7g, 7h, 9
a, 9b, 11a, 11b area

Claims (7)

[Claims] 1. A child safety seat for an automobile, which is placed on a seat of an automobile and fixed to the seat by a seat belt provided for the seat, wherein the bottom surface of the child safety seat for the automobile is the bottom surface. Is provided with a high friction coefficient portion made of a material having a friction coefficient higher than that of the material constituting the above, and the frictional force between the high friction coefficient portion and the seat surface of the automobile causes the child safety for the automobile. A child safety seat for automobiles that prevents the seat from tipping or shifting. 2. The automobile child safety seat according to claim 1, wherein the high friction coefficient portion is constituted by a non-slip sheet attached to a bottom surface of the automobile child safety seat. 3. The non-slip sheet is selectively attached to a peripheral portion of a bottom surface of the child safety seat for an automobile,
A child safety seat for an automobile according to claim 2. 4. The child safety seat for automobiles according to claim 2, wherein the bottom surface of the child safety seat for automobiles has four corner portions, and the non-slip sheet is attached on the four corner portions. seat. 5. A recess is provided in a central portion of a bottom surface of the automobile child safety seat, and the non-slip sheet is attached to a bottom surface of the automobile child safety seat located around the recess. The child safety seat for vehicles according to 2 to 4. 6. The child safety seat for an automobile includes a side wall that rises from a peripheral portion of a bottom surface of the child safety seat for an automobile, and the non-slip sheet is attached so as to extend onto the side wall. A child safety seat for an automobile according to any one of claims 2 to 5. 7. The corner portion of the bottom surface of the child safety seat for an automobile is defined by a curve of a first curvature, and the non-slip sheet has a second curvature larger than the first curvature.
A non-slip sheet is attached so that a corner portion of the non-slip sheet is located on a corner portion of a bottom surface of the automobile child safety seat. The child safety seat for a vehicle according to any one of 2 to 6.