JP2000301972A - Safety belt of child seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safety belt preventing the abdomen from being pressed so that children do not resist being seated on child seats. SOLUTION: A child seat S has a base part 1 and a seat part 2 separably attached to the base part 1, the seat part 2 having a seating part 20 and a back part 30 reclineable relative to the seating part 20. A crotch belt 4 fixed in place at one end is attached to the seating part 20 and a safety belt is formed by connecting a shoulder belt thereto. The crotch belt 4 has a support part 41 secured to a bottom, a first link part 43 rotatably disposed at the support part 41, and a second link part 45 rotatably disposed at the first link part 43. The first link part 43 is formed with a stopper part 43a regulated by the abutting surface 41a of the support part 41 and the second link part 45 is formed with a stopper part 45a regulated by the abutting surface 43b of the first link part 43.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety belt for a child seat, and more particularly to a safety belt for a child seat which can be used for each age group of newborns, babies and infants.

[0002]

2. Description of the Related Art In recent years, when a young person under the age of six gets into a car, it has become mandatory to mount a child safety seat to protect the safety of the young person. Improvements have been made to solve. On the other hand, when child protection devices for automobiles are used by young people such as newborns, babies, infants, etc., the classification of child protection devices that can be used by children and the use status of protection devices corresponding to each child are "Japan". It is stipulated in the "industrial standard" as "automobile supplies-child protection equipment: JIS-D 0401-1996".

According to this, the child protection devices are classified into “baby beds”, “infant seats” and “school child seats”, and further, depending on the weight of the child, less than 10 kg.
In the case of 9-18 kg, 15-25 kg, and 22-36 kg, they are respectively classified as W1, W2, W3, and W4. The `` baby bed '' must be configured so that the baby is restrained in a state where the baby is laid on its back or face down on a continuous surface, and placed sideways to the direction of travel, Infant Seat "
Must be turned backwards in combination with W1, and the "school-child seat" is defined so as not to be combined with W1 and W2. For this reason, "baby beds", "infant seats" (generally referred to as "child seats"), and "school child seats" have been used as separate protective devices according to each division of the child.

[0004] However, mounting different protective devices according to the age and weight of each child increases the burden on the user, and the user cannot use the device after his / her age, which is wasteful. . Therefore, 1
An attempt to make a single protective device usable for all children is disclosed in JP-A-10-250426. Hereinafter, this protection device is referred to as a “child seat”. According to this, this child seat has a seat portion and a pedestal portion, and a seat portion and a back portion are arranged on the seat portion,
The back is formed to be tiltable with respect to the seat. The seat portion is rotatably mounted on the pedestal portion, and is configured to be able to be disposed in a laterally facing state, a forwardly facing state, and a backwardly facing state with respect to the traveling direction of the automobile. In the sideways state, the back can be inclined horizontally to form a bed, and in the frontward or rearward state, it can be made into a sheet. Also,
In the center is a safety belt for restraining young people. In this safety belt, a crotch belt constituting the safety belt is formed in a curved shape with one end fixed to a seat portion, and a buckle is arranged at a tip of the crotch belt, and a shoulder belt and a waist belt are connected to each other, so that a child can be used. It was configured to be restrained.

[0005]

However, since the purpose of the child seat is to protect the young, it is important to provide reliable safety protection, and also consider that the child can be accommodated without dislike. Must. In particular, safety belts for restraining young people have a discomfort to accommodate them because of the pressure on the abdomen of the young people, resulting in a reduction in the wearing rate of child seats.

A conventional child seat (Japanese Patent Laid-Open No. 10-2)
No. 50426) is improved with respect to protecting a young person, but since the crotch belt is formed by one curved member, when the shoulder belt and the waist belt are worn, Squeezing the abdomen of a young person,
She hates child seats.

An object of the present invention is to solve the above-mentioned problem, and an object of the present invention is to provide a child seat safety belt which can prevent a child from pressing the abdomen.

[0008]

A child seat safety belt according to the present invention is configured as follows to solve the above-mentioned problems. In other words, a seat that allows a young person to sit down or lie down,
And a pedestal portion on which the seat portion is mounted.The seat portion has a seat portion and a back portion that can be tilted with respect to the seat portion, and one end is fixed to the seat portion. A safety belt for a child seat comprising a crotch belt and a shoulder belt having one end fixed to at least the back, wherein the crotch belt does not press the abdomen of a child with the crotch belt. Is provided.

Preferably, the crotch belt has at least one swingable indirect link, a stopper for regulating the swing of the indirect link, and spring means for maintaining a link angle of the indirect link. And the pressure preventing means may be configured.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

The child seat S of the present embodiment is shown in FIGS.
And a pedestal portion 1 formed so as to be fixed to a vehicle seat, and a seat portion 2 which is separated from the pedestal portion 1 and detachably attached to the pedestal portion 1. It is configured to have. Further, the seat 2 has a seat 20 and a back 30 configured to be tiltable with respect to the seat 20. In the above-mentioned section W1, or a state used by a newborn baby or a baby whose neck is not seated, as shown in FIG. 1, the seat portion 2 is arranged sideways with respect to the traveling direction of the car, and the back portion 30 is placed. The bed is tilted horizontally with respect to the pedestal 1 to form a baby bed (this state is classified as "newborn" in the following description). Division W
As shown in FIG. 2, the seat 1 is arranged rearward with respect to the traveling direction of the vehicle, and the back 30 is attached to the base 1 as shown in FIG. On the other hand, the seat is tilted obliquely upward to form an infant seat (in the following description, this state is classified as "baby"). Further, as shown in FIG. 3, the state where the infant is used in the sections W2, W3 and W4 is such that the seat portion 2 is disposed in a forward facing state with respect to the pedestal portion 1, and the back portion 30 is in the above-described backward facing state. The child seat is formed by being tilted at an angle larger than the tilt angle (in the following description, this state is classified as “child”).

A detailed configuration of each part will be described. The pedestal 1 has a receiving portion 11 which can be engaged with a hooking pin 25 formed on the lower surface side of the seat portion 2 and is fixed to a vehicle seat. When the engaging pin 25 is engaged, the seat 2 is fixedly supported by a lock device (not shown). In the present embodiment, the receiving portions 11 of the pedestal portion 1 are formed corresponding to the hanging pins 25 formed at four positions so as to be located at the respective vertices of the rectangular shape.

FIG. 4 is an overall perspective view of the child seat S in a seated state. In this figure, in order to explain the internal structure of the child seat S of the present embodiment in detail, a cushion for a cushion to be formed originally is shown. Flexible urethane foam is omitted in the figure.

The seat portion 20 of the seat portion 2 includes a bottom portion 21 attached to the pedestal portion 1, an armrest 22 erected from both side ends of the bottom portion 21, and a buttocks movable above the bottom portion 21 in a substantially horizontal direction. The buttock support portion 23 is formed to have a support portion 23 and a footrest 24 at the tip end side of the buttock support portion 23 that is supported by the buttocks support portion 23 so as to be tiltable. Further, one end of the crotch belt 4 constituting the safety belt 3 is attached to the bottom portion 21 so as to cover the abdomen of the accommodated child from above.

The back portion 30 of the seat portion 2 includes a backrest portion 31 for supporting the back of a young person, side rests 32 erected from both side edges of the backrest portion 31, and a backrest portion 3 respectively.
A headrest 33 supported at the front end of the head side so as to be tiltable by a backrest 31; and a head protection pad 34 pivotally supported by the headrest 33 and protecting the head of a young person from the side.
And is configured. Further, the backrest 31
Are formed in three places, through which the shoulder belt 5 is inserted. The shoulder belt 5 is selectively inserted into any one of the belt insertion holes 31a in accordance with the height of the child. One end of the shoulder belt 5 is inserted through the belt insertion hole 31a and is fixed to the lower portion on the back side of the backrest 31, and the other end is bent by the crotch belt 4 to become the waist belt 6 and the backrest 3
1 is fixed to the back side. In addition, the armrest 22 and the siderest 32 that are erected have a role of preventing a young person from jumping out of the child seat S due to an impact.

The crotch belt 4 is, as shown in FIG.
A first link portion 43 rotatably supported by the support portion 41 via a pin 42;
A second link portion 45 rotatably supported by a link portion 43 via a pin 44 is provided. An upper contact surface 4 of the support portion 41 is provided at a lower portion of the first link portion 43 so that the first link portion 43 does not fall too much toward the child in which the first link portion 43 is accommodated.
A stopper portion 43a is formed to abut on 1a, a buckle 46 for connecting a tongue plate inserted into the shoulder belt 5 is mounted on the second link portion 45, and a tip portion 45b is formed in a fan shape. 2nd link part 45
A stopper portion 45a is formed to abut against an upper contact surface 43b formed on the first link portion 43 so that the first link portion 43 does not fall too much toward the child accommodated in the first link portion 43.

Further, a coil spring 47 is locked so as to connect one end of the first link portion 43 and one end of the second link portion 45, and the second link portion 45 is tilted toward the child. I'm going. The coil spring 47 holds the link angle with the first link portion 45 by restricting the rotation of the second link portion 45 to the child side with respect to the first link portion 43.

When the child is not accommodated in the seat portion 2, the first link portion 43 of the crotch belt 4 is located on the left side with respect to the support portion 41 as shown by a two-dot chain line on the left side of FIG. Has been rotated. Therefore, the stopper portion 43a of the first link portion 43 is separated from the contact surface 41a of the support portion 41,
Since the rotation to the left is restricted by the coil spring 47, the second link portion 45 is positioned substantially on an extension of the first link portion 43.

When each of the divided children is accommodated in the seat 2, for example, in the state of FIG. 1, a "newborn" is accommodated in the seat 2 in a supine position, and the crotch belt 4 is Is committed to the maximum. In this state, the first
The stopper 43a of the link 43 contacts the contact surface 41a of the support 41, and the stopper 45 of the second link 45.
a is the first link 43 by the urging force of the coil spring 47.
Is in contact with the upper contact surface 43b. Then, a slight gap H is formed between the lower surface of the distal end portion 45a of the second link portion 45 and the abdomen of the “newborn”, and therefore the abdomen of the “newborn” is not pressed by the crotch belt 4.

In the state shown in FIG. 2, an "infant" is accommodated in the seat portion 2 while lying on a back portion 30 slightly inclined upward. In this state, the stopper portion 43a of the first link portion 43 is in contact with the contact surface 41a of the support portion 41, and the stopper portion 45a of the second link portion 45 is moved by the urging force of the coil spring 47. Is in contact with the upper contact surface 43b of the second link 45, or the abdomen of the "baby" is slightly away from the distal end portion 45b of the second link 45 depending on the system of the "baby". Therefore,
Do not press because the abdomen of the "infant" is not pressed.

In the state shown in FIG. 3, an "infant" is accommodated in the seat portion 2 in a seated state. In this state, the first
The stopper portion 43a of the link portion 43 is in contact with the contact surface 41a of the support portion 41, and the second link portion 45 has a tip portion 45.
Since the b contacts the abdomen of the "infant" and rotates about the pin 44 toward the "infant" side, the stopper 45a is away from the upper contact surface 43b of the first link 43. The “infant” whose system is enlarged has almost no pressure received from the crotch belt 4 because the second link 45 rotates in the direction in which the second link 45 escapes even when the second link 45 contacts the abdomen.

Therefore, the crotch belt is connected to the first link 4
3 and the second link portion 45 are formed so as to be rotatable, so that the “newborn” has a gap between the abdomen and the “infant”, for example, the tip of the second link 45. 45b is the first link part 4 even in the abdomen of a young person
3 is restricted from swinging to the "infant" side and the second link 45 rotates in a direction to escape from the "infant" side, so that little pressure is applied to the abdomen for the young.

Next, the operation of accommodating each child in the child seat S will be described. First, the pedestal portion 1 is fixed to a vehicle seat. The pedestal portion 1 is disposed forwardly with respect to the seat (forwardly with respect to the traveling direction of the vehicle), and a seat belt (not shown) is engaged with and fixed to the pedestal portion 1.

When a "newborn" is accommodated, the back 30 of the seat 2 is tilted in the horizontal direction to form a bed substantially flush with the seat 20, and then the seat 2 is mounted on the pedestal 1.
Then, the "newborn" is accommodated in the seat portion 2, the tongue plate of the shoulder belt 5 is connected to the buckle 46, and the safety belt 3 is fastened. At this time, as described above, both the first link portion 43 and the second link portion 45
The a and 45a are in contact with the respective contact surfaces 41a and 43b to restrict the inclination of the crotch belt 4 itself. And crotch belt 4
A gap H is formed between the abdomen and the "newborn".

Next, when accommodating an "infant", the seat 20
The seat 30 is mounted on the pedestal 1 with the seat 2 facing backward with respect to the pedestal 1. Then, the "infant" is accommodated in the seat portion 2, and the safety belt 3 is fastened as described above. At this time, the stopper 43 a of the first link 43 is connected to the contact surface 4 of the support 41.
1a, the swing of the crotch belt 4 is restricted.
Since the lower surface of the distal end portion 45 b of the link portion 45 slightly touches the abdomen of “infant”, the stopper portion 45 a of the second link portion 45 is slightly separated from the contact surface 43 b of the first link portion 43.

Next, when accommodating an "infant", the seat 2
The seat 30 is mounted on the pedestal 1 with the back portion 30 tilted up to the maximum with respect to 0, with the seat 2 facing forward with respect to the pedestal 1. Then, the “infant” is accommodated in the seat portion 2 and the safety belt 3 is fastened. At this time, the stopper portion 43a of the first link portion 43 comes into contact with the contact surface 41a of the support portion 41 to restrict its swing, and the second link portion 45 of the crotch belt 4
Since the lower surface of the distal end portion 45b is in contact with the abdomen of the “infant”, the second link is rotated in a direction to escape from the “infant”, so that the stopper portion 45a of the second link portion 45 Away from

The devices constituting the above-mentioned child seat S are not limited to the above-described embodiment, but may include other embodiments as long as they are described in the appended claims. . For example, if the tilted position of the back 30 is formed at three or more positions, the first link 43
A new link unit can be arranged between the second link unit 45 and the second link unit 45.

[0028]

According to the present invention, a safety belt for a child seat according to claim 1 has a seat portion on which a young person can be seated or laid down, and a pedestal portion on which the seat portion is mounted. The seat portion has a seat portion and a back portion that can be tilted with respect to the seat portion, and a crotch belt having one end fixed to the seat portion and at least one end fixed to the back portion. It is configured with a shoulder belt,
The crotch belt is provided with compression prevention means for preventing the abdomen of a young person from being pressed by the crotch belt. Thus, at any position where the back is tilted, the abdomen of the child is not squeezed, so that the child is accommodated in the child seat without having to worry about the safety belt.

According to a second aspect of the present invention, in the child safety belt for a child seat, the crotch belt has at least one indirect link capable of swinging, a stopper for restricting swinging of the indirect link, and a link angle of the indirect link. Spring means for holding;
Since the compression prevention means is configured to have a gap, a gap can be formed between the abdomen of the newborn and the crotch belt when the child is a newborn. Even if the crotch belt hits, the indirect link can rotate in the direction of escaping from the infant side, so that the abdomen of the infant is not pressed, and the same effect as in claim 1 can be exhibited.

[Brief description of the drawings]

FIG. 1 is a simplified explanatory view showing a safety belt of a child seat according to an embodiment of the present invention in a state for a “newborn”;

FIG. 2 is a simplified explanatory diagram showing a state for the “infant”;

FIG. 3 is a simplified explanatory diagram showing a state for the “infant”;

FIG. 4 is an overall perspective view showing the child seat in the seated state;

FIG. 5 is an enlarged side view showing the crotch belt;

[Explanation of Signs] S: Child seat 1 ... Pedestal part 2 ... Seat part 3 ... Safety belt 4 ... Crotch belt 5 ... Shoulder belt 6 ... Waist belt 20 ... Seat part 30 ... Back part 41 ... Support part 41a ... Contact surface (compression) 43 ... First link portion (indirect link) 43a ... Stopper portion (compression prevention device) 43b ... Abutment surface (compression prevention device) 45 ... Second link portion 45a ... Stopper portion (compression prevention device) 47 ... Coil Spring

Claims (2)

[Claims] 1. A seat on which a child can be seated or laid down, and a pedestal on which the seat is mounted.
The seat portion has a seat portion and a back portion tiltable with respect to the seat portion, and a crotch belt having one end fixed to the seat portion and one end fixed to at least the back portion. A safety belt for a child seat configured to include a shoulder belt provided, wherein the crotch belt is provided with a compression preventing means for preventing the abdomen of a child from being pressed by the crotch belt. A child seat safety belt. 2. The crotch belt has at least one swingable indirect link, a stopper for regulating the swing of the indirect link, and spring means for maintaining a link angle of the indirect link. 2. The safety belt for a child seat according to claim 1, wherein said compression prevention means is configured as a safety belt.