JP2004130921A - Child seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a child seat easy to mount on a seat with a webbing belt. <P>SOLUTION: An insertion hole 36 is formed on a side support 30 of a seat back part 26 formed in a hollow shape by blow molding on this child seat 10, and the webbing belt 42 inserted into the insertion hole 36 passes through the other side support 30 by passing in front of a seat back main body 28 after passing through one of the side supports 30. In this way, as the webbing belt 42 is structured not to pass through the inside of the seat back main body 28 on this child seat 10, it is possible to facilitate insertion of the webbing belt 42. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a child seat used when a child who has not reached a certain age is to be boarded in a vehicle.
[0002]
[Prior art]
When a child (infant or infant) who has not reached a certain age is to be loaded on a vehicle, it is legally required that a so-called child seat be fixed on the vehicle seat and that the child be seated on this child seat. An example of a kind of child seat is disclosed in Patent Document 1 below.
[0003]
The child seat disclosed in Patent Literature 1 includes a shell formed by blow molding, and a part of the shell forms a seat cushion of the child seat and a support member of a seat back. A portion of the shell that forms the seat back is formed with a belt through hole that opens at both ends in the width direction of the seat back.
[0004]
The webbing belt constituting the seat belt device of the vehicle is inserted into the interior of the seat back (that is, the interior of the shell) from one open end of the belt through hole, and the webbing belt that has entered the interior of the seat back is passed through the belt. It is pulled out from the other open end of the hole.
[0005]
With the webbing belt passing through the inside of the seat back in this way, the child seat is attached to the seat by attaching the tongue plate provided on the webbing belt to the buckle device of the seat belt device, and among the webbing belts, The structure is such that the child seat is fixed in a state where the portion passing through the inside of the seat back is pressed against the seat back of the seat with tension.
[0006]
[Patent Document 1]
Japanese Utility Model Laid-Open No. 5-67533
[Problems to be solved by the invention]
By the way, the child seat disclosed in Patent Document 1 has a structure in which the belt through hole is opened at one end and the other end in the width direction of the seat back, so that when the webbing belt is passed through the belt through hole, the webbing belt is gripped. In such a state, the hand must be inserted from one end of the belt through hole to guide the webbing belt to the other end of the belt through hole.
[0008]
However, the size of the belt through hole cannot be physically larger than the thickness of the seat back. For this reason, it is difficult to put a hand in the belt through hole itself, and even if a hand can be put in the belt through hole, the hand must be inserted all the way to the back of the seat back along the width direction of the seat back. Therefore, the operation of passing the webbing belt was difficult.
[0009]
An object of the present invention is to provide a child seat that can be easily mounted on a seat by a webbing belt in consideration of the above fact.
[0010]
[Means for Solving the Problems]
According to the first aspect of the present invention, a side wall stands substantially forward from both widthwise ends of the seat cushion portion mounted on a vehicle seat and a seat back body provided at a rear end of the seat cushion portion. A seat back portion provided, and a child seat fixed on the seat by a webbing belt of a seat belt device provided in the vehicle corresponding to the seat, wherein the seat is formed by blow molding. The back part is formed to be hollow, and the opening end that penetrates the side wall along the width direction of the seat back body and opens inward in the width direction of the seat back body opens at the front side of the seat back body. A belt insertion hole through which the webbing belt passes is formed.
[0011]
When attaching the child seat having the above configuration to a vehicle, first, a seat cushion portion of the child seat is placed on the seat. In this state, the webbing belt of the seat belt device is inserted into insertion holes formed in both side walls extending from the seat back body of the seat back portion of the child seat, and the child seat is fixed on the seat by the tension of the webbing belt. .
[0012]
Here, in the present child seat, the seat back portion including the side wall is formed hollow by so-called blow molding. In addition, the insertion hole formed in the side wall has an inner end in the width direction of the seatback main body that opens forward of the seatback main body. Therefore, the webbing belt inserted through the insertion hole of one side wall is inserted into the insertion hole of the other side wall after passing ahead of the seatback body.
[0013]
As described above, in the present child seat, the penetration dimension of the insertion hole along the width direction of the seat back main body is about the dimension of the side wall along the same direction, so that the webbing belt passes not only to the side wall but also to the inside of the main body. In comparison, the distance that the webbing belt passes in the seat back portion is shorter. For this reason, the webbing belt can be easily passed through the insertion hole as compared with a structure in which the webbing belt passes through the inside of the seatback body, and as a result, the entire child seat mounting operation is facilitated.
[0014]
In addition, as described above, the insertion hole is formed in the side wall, and the webbing belt that has passed through the insertion hole can have a structure in which the seat back body is directly pressed against the seat back of the seat by the tension. For this reason, compared to a configuration in which a mounting portion having an insertion hole for passing a webbing belt is separately provided on the back surface side of the seatback main body, the dimension of the seatback main body along the front-rear direction is equal to the dimension of the mounting portion. Can be shortened. Thus, for example, when the child seat is attached to the rear seat of the vehicle, the distance between the child sitting on the child seat and the seat back of the front seat of the vehicle can be increased.
[0015]
In the present child seat, at least the seat back portion may be formed by blow molding. That is, the seat cushion portion may be formed by blow molding, or may be formed by a molding method other than blow molding. Further, the seat cushion portion may be formed integrally with the seat back portion, or the seat cushion portion may be formed separately from the seat back portion, and the seat cushion portion may be connected and fixed to the seat back portion.
[0016]
According to a second aspect of the present invention, in the child seat according to the first aspect, the webbing belt passing through the insertion hole is provided with an interference protrusion that interferes in an inner circumferential direction of the insertion hole at an inner peripheral portion of the insertion hole. It is characterized by being formed in.
[0017]
According to the child seat having the above-described configuration, the webbing belt inserted into the insertion hole is interfered by the interference protrusion formed on the inner peripheral portion of the insertion hole. Thereby, the displacement of the webbing belt along the inner circumferential direction of the insertion hole is regulated. For this reason, the position where the inner peripheral portion of the insertion hole and the seatback body are pressed against the webbing belt can be stabilized.
[0018]
According to a third aspect of the present invention, in the child seat according to the first or second aspect, an opening width dimension along a front-rear direction of the seat back body is larger than a thickness dimension of the webbing belt, and an inner side of the seat back main body has a thickness. A small-width portion on which a belt holding member for sandwiching the webbing belt is mounted, and the opening width dimension is larger than the small-width portion, and a connection portion side of the seatback portion and the seat cushion portion with respect to the small-width portion. Alternatively, the insertion hole includes a large portion communicating with the small width portion on a side opposite to the connection portion.
[0019]
In the child seat having the above configuration, the webbing belt can be easily displaced in a portion passing through the insertion hole by mounting a belt holding member for holding the webbing belt in a small width portion of the insertion hole in a state where the webbing belt is inserted in the insertion hole. Without making the webbing belt stable.
[0020]
In addition, a large portion which forms an insertion hole together with the small width portion is formed on the side of the connection portion between the seat back portion and the seat cushion portion or on the opposite side of the small width portion. Here, the inner width dimension of the large portion along the front-rear direction of the seat back body is larger than the inner width size of the small width portion. For this reason, when the webbing belt is passed through the insertion hole or when the above-mentioned belt holding member is attached to the small width portion, the hand holding the webbing belt or the belt holding member is inserted into a large part of the insertion hole to perform the work. be able to. This makes it easier to attach the child seat.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
<Configuration of the present embodiment>
FIG. 1 is a perspective view of a child seat 10 according to one embodiment of the present invention, and FIG. 2 is a side sectional view of the child seat 10.
[0022]
As shown in these figures, the present child seat 10 includes a base 12, and when the present child seat 10 is mounted on a vehicle, the base 12 is placed on a seat cushion 16 constituting a seat 14 of the vehicle. You. A seat cushion 18 is mounted on the base 12.
[0023]
The seat cushion 18 includes a seat cushion body 20. The seat cushion body 20 is formed in a thick plate shape having a thickness direction substantially along the vertical direction of the vehicle when mounted on the vehicle. Further, the seat cushion main body 20 is formed in a hollow shape as a whole as shown in FIG. 2 by blow molding which is one mode of a resin molding method. However, although not specifically shown, a rib or the like for maintaining or improving mechanical strength may be formed inside the seat cushion main body 20.
[0024]
Side supports 22 are formed on both sides in the width direction of the seat cushion body 20. The side support 22 has a thickness direction along the width direction of the seat cushion main body 20, and an upper end thereof is located above an upper surface of the seat cushion main body 20, and when the child sits on the seat cushion main body 20. The side support 22 can protect a child from an impact from both sides of the child seat 10 in the width direction.
[0025]
The side support 22 is formed integrally with the seat cushion main body 20, and the side support 22 is formed together with the seat cushion main body 20 when the seat cushion main body 20 is formed by the blow molding. Therefore, the inside of the side support 22 is basically hollow like the seat cushion main body 20 and communicates with the inside of the seat cushion main body 20.
[0026]
Further, as shown in FIG. 1, pad members 24 are attached to the upper surface of the seat cushion main body 20 and the opposing surfaces of the side supports 22 to improve the feeling given to the child when the child is seated. Let me.
[0027]
On the other hand, as shown in FIG. 1, a seat back body 28 that constitutes the seat back portion 26 is provided at a rear end side of the seat cushion body 20.
[0028]
The seat back 26 includes a seat back body 28. The seatback body 28 is formed in a thick plate shape having a thickness direction substantially along the vehicle front-rear direction when mounted on the vehicle. Further, the seat back body 28 is formed in a hollow shape as a whole as shown in FIG. 2 by blow molding, which is an embodiment of a resin molding method, similarly to the seat cushion body 20. However, although not particularly shown, a rib or the like for maintaining or improving mechanical strength may be formed inside the seatback body 28.
[0029]
Side supports 30 as side walls are formed on both sides in the width direction of the seat back body 28. The thickness direction of the side support 30 is along the width direction of the seat back body 28. Further, the width direction of the side support 30 is substantially along the thickness direction of the seat back body 28, and is integrally connected to the seat back body 28 at a base end thereof, and the front end side of the width direction is the seat back body 28. Projecting forward from the front in the thickness direction.
[0030]
Like the side support 22, these side supports 30 can also protect a child sitting on the seat cushion main body 20 from an impact from both sides in the width direction of the child seat 10. The side support 30 is formed integrally with the seat back main body 28. When the seat back main body 28 is formed by the blow molding, the side support 30 is formed together with the seat back main body 28. Therefore, the inside of the side support 30 is basically hollow like the seat back body 28 and communicates with the inside of the seat back body 28.
[0031]
Further, as shown in FIG. 1, pad members 32 are attached to the front surface of the seat back body 28 and the opposing surfaces of the side support 30 to improve the feeling given to the child when the child is seated. Let me.
[0032]
As shown in FIG. 1, a plurality of pairs of left and right slit holes 34 are formed in the seat back body 28 intermittently along the height direction of the seat back body 28. These slit holes 34 are opened on both the front side and the back side of the seat back body 28, and one set of these slit holes 34 has a child seat (not shown) provided on the back side of the seat back body 28. The webbing belt attached to the seat belt device is inserted therethrough, and the body of the child sitting on the child seat 10 can be restrained by the webbing belt of the child seat belt device.
[0033]
On the other hand, as shown in FIG. 1, insertion holes 36 are formed in both side supports 30. One end of the insertion hole 36 is opened on the outer surface in the thickness direction of the side support 30, and the other end is opened on the surface facing the side support 30. In the inner peripheral portion of the insertion hole 36, the rear surface along the thickness direction of the seat back body 28 is formed at a position substantially flush with the front surface of the seat back body 28 (that is, the insertion is performed). Most of the hole 36 is formed on the front side of the seat back body 28).
[0034]
Further, the insertion hole 36 has a small width portion 38 above a middle portion in a direction along the height direction of the seat back body 28, and a clip 40 is mounted inside the small width portion 38. The clip 40 is formed with a slit hole 34 penetrating along the thickness direction of the side support 30, and the webbing belt 42 of the seat belt device mounted on the vehicle corresponding to the seat 14 passes therethrough.
[0035]
On the other hand, in the insertion hole 36, the opening width dimension along the thickness direction of the side support 30 on the lower side of the middle part in the direction along the height direction of the seat back body 28 is larger than the opening width dimension of the small width part 38. Is also a large portion 44. The webbing belt 42 is directly inserted into the large portion 44. As described above, the webbing belt 42 penetrating through the small width portion 38 and the large portion 44 presses the seat back body 28 against the seat back 46 of the seat 14 with its tension, whereby the child seat 10 is fixed on the seat 14. Has become.
[0036]
2, and more specifically, as shown in the enlarged view of FIG. 3, in the inner peripheral portion of the insertion hole 36 in the large portion 44, a portion on the rear side along the thickness direction of the side support 30 includes: The interference projection 48 is formed so as to protrude forward, and interferes with the webbing belt 42 passing through the large portion 44 from above.
[0037]
<Operation and effect of the present embodiment>
Next, functions and effects of the child seat 10 will be described.
[0038]
When attaching the child seat 10 to the seat 14, first, the base 12 is placed on the seat cushion 16 of the seat 14. Next, the webbing belt 42 is inserted into the slit holes of one of the clips 40 corresponding to the insertion holes 36.
[0039]
In this state, a tongue plate (not shown) attached to an intermediate portion in the longitudinal direction of the webbing belt 42 is inserted into an insertion hole 36 formed in one side support 30 from a side opposite to the other side support 30, and a sheet is inserted. The tongue plate is passed through the front of the front surface of the back body 28, and further inserted into the insertion hole 36 formed in the other side support 30 from one side support 30 side. Further, the tongue plate is attached to the buckle of the seat belt device in a state where the webbing belt 42 is passed through the two insertion holes 36 as described above. As a result, both sides of the webbing belt 42 bordering the folded portion of the tongue plate pass through both insertion holes 36.
[0040]
Next, the clip 40 is attached to the small width portion 38 of the insertion hole 36, and a position of the webbing belt 42 that is separated from the clip 40 by a predetermined distance to the distal end side, and the distal end side of the folded portion of the tongue plate. The predetermined portion is located below the interference projection 48 of the large portion 44.
[0041]
In this state, the tension of the webbing belt 42 is increased by tightening the webbing belt 42 so that the seatback body 28 is pressed against the seatback 46 of the seat 14 by the tension of the webbing belt 42. Thus, the child seat 10 is fixed on the seat 14.
[0042]
Here, in the present child seat 10, the seat back portion 26 including the side support 30 is formed in a hollow shape by blow molding, and the insertion hole 36 is formed only in the side support 30 of the seat back portion 26.
[0043]
Therefore, in the present child seat 10, the webbing belt 42 does not pass through the inside of the seat back body 28. Therefore, when the webbing belt 42 is passed through the insertion hole 36, the tongue plate and the webbing belt 42 can be passed through the insertion hole 36 even if the hand holding the tongue plate does not enter the insertion hole 36 deeply.
[0044]
The webbing belt 42 that has passed through the insertion holes 36 in this manner presses the seat back body 28 against the seat back 46 of the seat 14 substantially uniformly along the width direction by the tension. Therefore, the child seat 10 can be stabilized on the seat 14. In addition, since the webbing belt 42 that has passed through the insertion hole 36 presses the seat back body 28 and the inner peripheral portion of the insertion hole 36 to hold the seat back portion 26, the insertion hole is formed on the back side of the seat back body 28. Compared with the configuration in which the formed mounting portion is separately provided, the size of the seat back portion 26 along the front-rear direction can be shortened by the size of the mounting portion.
[0045]
Thereby, for example, when the child seat 10 is attached to the rear seat of the vehicle, the distance between the child sitting on the child seat 10 and the seat back of the front seat of the vehicle can be increased.
[0046]
Further, when the webbing belt 42 is passed through the insertion hole 36 or the clip 40 is attached, the work is performed by putting a hand in the insertion hole 36, but the work is communicated with the small width portion 38 to which the clip 40 is attached. Since the large portion 44 has a sufficiently large opening width as compared with the small width portion 38, the large portion 44 can be easily put into a hand, and the webbing belt 42 can be passed through the insertion hole 36, and the clip 40 can be attached to the small width portion 38. Workability during mounting can be improved.
[0047]
Further, of the portions of the webbing belt 42 that pass through the insertion holes 36, the portions that do not pass through the slit holes of the clip 40 pass through the large portion 44. Here, the portion of the webbing belt 42 that has passed through the large portion 44 is interfered by the interference projection 48 from above. This restricts the portion of the webbing belt 42 that has passed the large portion 44 from being displaced in the vertical direction. Therefore, even if vibrations or the like occur while the vehicle is traveling, the webbing belt 42 passing through the large portion 44 does not shift upward. Thereby, the child seat 10 can be reliably stabilized on the seat 14.
[0048]
In the present embodiment, the seat back portion 26 and the seat cushion portion 18 are configured separately, but they may be integrally formed by blow molding.
[0049]
【The invention's effect】
As described above, the child seat according to the present invention can be easily mounted on the seat by the webbing belt, and further, for example, when the child seat is mounted on the rear seat, the child seated on the child seat and the front seat can be used. The distance between the front seat and the seat back can be increased.
[Brief description of the drawings]
FIG. 1 is a perspective view of a child seat according to an embodiment of the present invention.
FIG. 2 is a side sectional view of the child seat according to the embodiment of the present invention.
FIG. 3 is an enlarged sectional view of an insertion hole.
[Explanation of symbols]
10 Child seat 18 Seat cushion section 20 Seat cushion body 26 Seat back section 28 Seat back body 30 Side support (side wall)
36 insertion hole 38 small width part 42 webbing belt 44 large part 48 interference projection

Claims (3)

Said seat cushion portion mounted on a vehicle seat,
A seat back portion having a side wall erected substantially forward from both ends in the width direction of the seat back body provided at the rear end of the seat cushion portion,
A child seat fixed on the seat by a webbing belt of a seat belt device provided in the vehicle corresponding to the seat,
The seat back portion is formed into a hollow shape by blow molding, and the opening end penetrating the side wall along the width direction of the seat back body and being inside the seat back body in the width direction is a front side of the seat back body. Forming a belt insertion hole through which the webbing belt passes through,
A child seat, characterized in that: On the webbing belt passing through the insertion hole, an interference protrusion that interferes along the inner circumferential direction of the insertion hole is formed on the inner periphery of the insertion hole,
The child seat according to claim 1, characterized in that: An opening width dimension along the front-rear direction of the seat back body is larger than a thickness dimension of the webbing belt, and a small width portion in which a belt holding member that sandwiches the webbing belt is mounted inside,
The opening width dimension is larger than the small width portion, and the communication portion communicates with the small width portion on the connecting portion side of the seat back portion and the seat cushion portion or on the side opposite to the connecting portion with respect to the small width portion. Department and
The child seat according to claim 1 or 2, wherein the insertion hole is configured to include:

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