JP2001225682A - Child seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a child seat having an impact shield locked thereto and prevented from being deviated inclined from the initial position. SOLUTION: This child seat 1 is provided with a seat part 3, wing walls 4 arranged in left/right both sides of the seat part 3, and the impact shield 5 laid across the wing walls 4, 4. Extension members 6 extending downward and extending along the external face of the wing walls 4 are provided near the bottom ends in the both end sides of the impact shield 5. The extension member 6 is provided with a projection 62 on the face of the extension member 6 opposite to the wing wall 4. The extension member 6 is rotationally moved in the direction approaching to the outside face of the wing wall 4 by the energization force of a tension spring and the projection 62 is engaged with a recess 42 provided in the external face of the wing wall 4. This constitution can lock the impact shield 5 to the child restraint body 2 so as to prevent the body from being easily released laterally and in the upward direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a child seat installed in a seat of an automobile, and more particularly, to a child seat belt which is routed along a seat of the child seat.
The present invention relates to a child seat of a type in which an impact shield is attached to the seat belt.

[0002]

2. Description of the Related Art There have been proposed some child seats which are mounted on a seat of an automobile and protect an infant in an emergency such as a collision of a vehicle. As one of them, the child seat body is fixedly installed on the seat of the car to seat the infant, and then the adult seat belt provided on the vehicle body is routed along the front of the child seat body and the infant, and the child with the seat belt and the infant are seated. In some cases, an impact shield is attached to the overlapping portion to hold the infant's body on the child seat and protect the infant from impact or the like.

[0003] A child seat of this type is:
Normally, the child seat body is provided with a means for fixedly mounting the seat on the vehicle. Using this fixed installation means,
The child seat body is fixed to the car seat in advance. After that, the infant is seated on the seat provided on the child seat body, and then the adult seat belt provided on the vehicle body is routed along the front surface of the child seat body and the infant sitting on the seat, and the vehicle is also moved to the vehicle. The seat belt tongue is connected to the provided seat belt buckle device.

[0004] At this time, an impact shield made of a cushion material or the like is attached to a portion of the seat belt overlapping the body of the infant. As a result, the infant body can be held in the child seat without creating an extra gap between the adult seat belt and the infant body, and the cushion material of the impact shield protects the infant in an emergency.

[0005] As described above, the child seat body is fixedly installed on the seat of the car, the infant is seated on the seat of the child seat, the seat belt is routed along the front of the child seat and the infant, and the impact shield is mounted. In an emergency such as a collision during vehicle running, one end of the seat belt is connected, and the seat belt retractor having a function of winding and feeding out the seat belt is locked (provided in the seat belt retractor, The rotation of the reel around which the seat belt is wound is prevented.).

As a result, even if the infant's body moves forward due to inertial force or the like at the time of a collision and presses the impact shield, the seat belt to which the impact shield is attached is not pulled out, and the impact shield is moved forward. It absorbs the impact by receiving the infant's body without moving to

According to such a child seat, it is not necessary to provide a seat belt device separate from the seat belt provided on the vehicle body by using the seat belt provided on the vehicle body, so that the structure is simple. Therefore, the emergency protection capability is highly reliable, and the cost advantage is great.

[0008]

However, in such a child seat, when the impact shield is attached to the seat belt, when the child seat is used for a large-sized infant, the impact shield is not applied to the infant body due to the tension of the seat belt. Pressed against
May cause discomfort.

Further, the impact shield may be displaced along the seat belt due to the shaking of the running vehicle or the movement of the body of the seated infant. Furthermore, a shoulder strap portion (shoulder belt) of the seat belt extending diagonally upward.
As a result, the impact shield may be pulled obliquely upward, and the impact shield may be inclined.

The present invention has been made in view of such problems, and the impact shield is displaced from an expected position due to shaking of a running vehicle, movement of an infant sitting in a child seat, or the like. It is an object of the present invention to provide a child seat in which the impact shield does not become inclined due to the tension of the shoulder strap portion of the seat belt and does not have a feeling of oppression when the impact shield is worn.

[0011]

A child seat according to the present invention has a seat portion on which an infant sits and sleeve wall portions disposed on both left and right sides of the seat portion. An impact shield attached to an adult seatbelt of an automobile drawn around the seat portion of the child seat main body; and a locking means for locking the impact shield to the child seat main body. It is characterized by the following.

According to such a child seat, since the impact shield is locked to the child seat body, the impact shield may be displaced from an expected position due to shaking of the running vehicle or movement of the body of the infant sitting in the child seat. Further, it is possible to prevent the impact shield from being inclined due to the tension of the shoulder strap portion of the seat belt.

As a result, the impact shield can be always held at the expected position, and the infant can be comfortably seated.

In the child seat of the present invention, it is preferable that the locking means locks the impact shield to the outer surface of the sleeve wall. The locking means extends from the impact shield, for example, and extends along the outer surface of the sleeve wall, and a protrusion or a protrusion provided on a surface of the extension member facing the sleeve wall. A concave portion and a concave portion or a convex portion provided on the sleeve wall portion and engaged with the convex portion or the concave portion may be provided, and the extending member pivots in a direction of coming into contact with or separating from the outer surface of the sleeve wall portion. A biasing member that is attached to the impact shield as possible and biases the extension member in a direction approaching the sleeve wall may be provided. The concave portion or the convex portion provided on the sleeve wall portion extends substantially in the front-rear direction of the child seat, and the convex portion or the concave portion provided on the extending member is formed of the concave portion or the convex portion provided on the sleeve wall portion. Preferably, it is movable in the extension direction.

[0015] With this configuration, the impact shield does not shift to the left and right with respect to the child seat body or is inadvertently lifted upward, and it is easy for a guardian or the like to attach or remove any impact shield. Can be done. In addition, since the convex portion or the concave portion provided on the extension member can be moved substantially in the front-rear direction of the child seat along the concave portion or the convex portion provided on the sleeve wall portion, the engagement between the convex portion and the concave portion is achieved. The impact shield can be moved substantially in the front-rear direction of the child seat without impairing the state, so that even if the impact shield is moved back and forth according to the body shape of the child sitting on the child seat, the impact shield can be moved to the child seat. In addition to being able to be locked, it is possible to prevent discomfort when the impact shield is attached due to pressure or the like by the impact shield.

[0016]

Embodiments of the present invention will be described below with reference to 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 view of the child seat, FIG. 3 is a cross-sectional view of the child seat taken along line III-III of FIG. 2, and FIG. It is principal part sectional drawing which shows the engagement relationship of a child seat main body and an impact shield.

The child seat 1 includes a child seat main body 2 having means for fixedly mounting the vehicle seat on a seat (not shown), a seat portion 3 provided on the front surface of the child seat main body 2 for an infant, and A pair of sleeve wall portions 4, which are arranged on both left and right sides and extend upward from the lower portion of the child seat body 2, are arranged so as to straddle between the sleeve wall portions 4, 4. And an impact shield 5 locked.

The sleeve wall portions 4 are each provided with a child seat 1.
Has a flat upper end surface substantially in the front-rear direction. An impact shield 5 is mounted on the upper end surface so as to be movable in the front-rear direction. Further, on the outer surface of the sleeve wall portion 4, there is provided a concave portion 42 formed of a concave stripe extending substantially in the front-rear direction of the child seat 1 and engaged with a convex portion 62 of the extension member 6 described later.

The impact shield 5 is provided at both left and right ends of the impact shield 5 and a cushion portion 52 for receiving an infant's body in an emergency such as a vehicle collision to absorb the impact and protect the infant. Each has an impact shield supporting portion 54 mounted on the upper end surface of the sleeve wall portion 4 and supporting the impact shield 5. Reference numeral 58 in FIG. 1 indicates a cover on the front side of the cushion portion 52.

The impact shield 5 is supported by the support 5
A pair of extending members 6 which extend downward from near the lower end on the outer surface side of the sleeve wall 4 and extend along the outer surface of the sleeve wall portion 4 when the impact shield 5 is installed on the sleeve wall portion 4. It has.

A groove 56 for passing the seat belt 10 provided in the vehicle is provided at an upper portion of each support portion 54. In using the child seat 1, when the seat belt 10 is routed along the child seat body 2 and the seat 3, the shoulder strap 10 of the seat belt 10 is used.
a and the portion of the wrap portion 10b that overlaps the infant's body is inserted into the groove 56.

The extension member 6 has a hinge portion 70 on the base end side. The hinge 70 includes a shaft support 72 having shaft holes 74 (not shown) provided at both ends of the impact shield 5, a shaft hole 76 provided at a base end of the extension member 6, and a shaft hole 76. And a shaft 78 engaged with the shafts 74 and 76. The shaft holes 74 and 76 have axes extending substantially in the front-rear direction of the child seat 1. When the shaft 78 is engaged with the shaft holes 74 and 76, the extension member 6 is attached to the impact shield 5 so as to be rotatable in a direction of coming into contact with and separating from the outer surface of the sleeve wall portion 4. Further, a tension spring 80 made of a coil spring or the like is provided on the hinge 70.
The tension spring 80 is wound around the shaft 78 and urges the extension member 6 in a direction approaching the sleeve wall portion 4.

On the tip end side of the extending member 6, a convex portion 62 is provided on a surface facing the sleeve wall portion 4, respectively. The convex portion 62 can be engaged with the concave portion 42 provided on the outer surface of the sleeve wall portion 4 described above. When the convex portion 62 is pushed into the concave portion 42 by the spring 80, the impact shield 5 is locked to the sleeve wall portion 4, so that the impact shield 5 is not easily separated from the impact shield main body 2 in the lateral direction and upward.

The projection 62 is movable in the extending direction of the recess 42 when engaged with the recess 42. Thus, even when the impact shield 5 is moved substantially in the front-rear direction of the child seat 1 along the upper end surface of the sleeve wall portion 4, the impact shield 5 is locked to the sleeve wall portion 4.

The child seat 1 configured as described above
The operation of will be described below.

When using the child seat 1, first, the child seat main body 2 is installed on an automobile seat (not shown) using the above-mentioned fixed installation means (not shown). After confirming that the child seat body 2 is firmly fixed to the seat of the car, the infant is seated on the seat 3 of the child seat body 2.

Next, the impact shield 5 is placed on the sleeve wall portion 4 with the tips of the left and right extending members 6 provided on the impact shield 5 being inclined by hand in a direction away from each other. Then, the right and left support portions 5 of the impact shield 5
4 are arranged on the left and right upper end surfaces of the sleeve wall portion 4, respectively, and the impact shield 5 is moved substantially in the front-rear direction of the child seat body 2 along the upper end surface of the sleeve wall portion 4.
2 is placed so that it touches lightly from the chest to the abdomen of the infant, and then the hand is released from the extension member 6. At this time, each extension member 6 is rotated in a direction approaching the outer surface of the sleeve wall portion 4 by the biasing force of the tension spring 80, and the convex portion 62 engages with the concave portion 42 of the sleeve wall portion 4. As a result, the impact shield 5 is locked to the child seat main body 2 and does not easily come off in the lateral direction and upward with respect to the impact shield main body 2.

Further, the adult seatbelt 10 provided on the vehicle body of the automobile is routed along the front surface of the infant seated on the child seat body 2 and the seat portion 3, and the tongue 12 provided on the seatbelt 10 is also used for the vehicle. Buckle device 14 for the seat belt 10 attached to the vehicle
Connect to At this time, the shoulder strap portion 10a of the seat belt 10
Then, the portions of the lap portion 10b that overlap the infant seated on the seat portion 3 are bundled and coupled to the groove 56 provided on the front surface of the impact shield 5. Thus, the infant's body is held by the impact shield 5 and the seat belt 10 with respect to the child seat 1.

As described above, the infant is seated on the child seat body 2, and the impact shield 5 and the seat belt 10 are seated.
When an impact due to a collision or the like is applied while the vehicle is running while the infant's body is held in the child seat 1, the infant's body suddenly moves forward with respect to the seat due to inertial force and presses the impact shield 5. I do. At this time, the seat belt retractor 7 (not shown) to which the seat belt 10 is connected may be subjected to a shock to the vehicle or a sudden withdrawal of the seat belt 10 due to the body of the infant pressing the impact shield 5 forward. Is detected, the reel (not shown) around which the seat belt is wound is locked to prevent the seat belt 10 from being pulled out. As a result, the impact shield 5 engaged with the seat belt 10 is substantially fixed by the seat belt 10 so as not to be movable in the front-rear direction, and the cushion portion 52 receives the body of the infant and absorbs the impact.

Since the impact shield 5 is locked to the sleeve wall portion 4 of the child seat main body 2 by the extending member 6, the impact shield 5 does not easily come off in the lateral direction and upward with respect to the impact shield main body 2. Therefore, the infant can be comfortably seated without being displaced from the expected position due to shaking during the vehicle running or the movement of the infant's body or tilting due to the tension of the shoulder strap portion 10a of the seat belt 10. .

The impact shield 5 includes an extension member 6.
Are engaged with the child seat body 2 by engaging the concave portion 42 extending in the front-rear direction of the sleeve wall portion 4 with the convex portion 62 provided on the sleeve wall portion 4. It is movably engaged. Thus, even when the impact shield 5 is moved substantially in the front-rear direction of the child seat body 2 along the upper end surface of the sleeve wall portion 4, the convex portion 62 and the concave portion 42 can be engaged, and the child sitting on the child seat 1 can be engaged. Even if the impact shield 5 is moved according to the body shape of the child, the impact shield 5 is locked to the child seat body 2.

In this embodiment, the hinge member 70 is provided at the base end of the extension member 6 so that the extension member 6 can be turned in the direction of coming into contact with and separating from the outer surface of the sleeve wall portion 4. Further, a tension spring 80 is provided on the hinge portion 70 to urge the extension member 6 in a direction approaching the sleeve wall portion 4. However, the present invention is not limited to this. Instead, the hinge 70 and the tension spring 80 may be omitted. In this case, for example, the impact shield 5 is provided with a tongue-shaped extending member made of an elastic material that can be elastically bent in a direction of coming into contact with and separating from the sleeve wall portion 4. The extension member may be biased in a direction approaching the sleeve wall portion 4 by a force.

In the above-described embodiment, the convex portion is provided on the surface of the extending member 6 facing the sleeve wall portion 4 and the concave portion is provided on the outer surface of the sleeve wall portion 4. The extension member 6 may be provided on the surface facing the sleeve wall portion 4, and the protrusion may be provided on the outer surface of the sleeve wall portion 4.

[0034]

As described in detail above, the child seat according to the present invention is provided with the locking means for locking the impact shield to the child seat body, so that the vehicle shakes and the movement of the infant during the running. Therefore, the impact shield does not deviate from the expected position, and the impact shield does not tilt obliquely upward due to the tension of the shoulder strap portion of the seat belt. Further, the impact shield can be locked to the child seat body even when the impact shield is moved back and forth according to the infant's body shape.

[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 view of the child seat of FIG. 1;

FIG. 3 is a sectional view taken along line III-III in FIG. 2;

FIG. 4 is a sectional view of a main part showing an engagement relationship between a child seat body and an impact shield.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Child seat 2 Child seat body 3 Seat part 4 Sleeve wall part 5 Impact shield 6 Extension member 10 Seat belt 42 Depression 62 Convex part 70 Hinge part 80 Tension spring

Claims (5)

[Claims] 1. A child seat body having a seat portion on which an infant sits and sleeve wall portions disposed on both right and left sides of the seat portion, the child seat body being fixedly installed on an automobile seat, and along the seat portion of the child seat body. A child seat comprising: an impact shield attached to an adult seat belt of a car which has been routed; and a locking means for locking the impact shield to the child seat body. 2. The child seat according to claim 1, wherein the locking means locks the impact shield to an outer surface of the sleeve wall. 3. The extension member according to claim 2, wherein the locking means extends from the impact shield, and extends along an outer surface of the sleeve wall portion; and the sleeve wall of the extension member. A child seat provided with a convex portion or a concave portion provided on a surface facing the portion, and a concave portion or a convex portion provided on the sleeve wall portion and engaging with the convex portion or the concave portion, respectively. . 4. The extension member according to claim 3, wherein the extension member is attached to the impact shield so as to be rotatable in a direction of coming into contact with and separating from the outer surface of the sleeve wall portion. A child seat provided with an urging member for urging in a direction in which the child seat moves. 5. The child seat according to claim 3, wherein the concave portion or the convex portion provided on the sleeve wall portion extends substantially in the front-rear direction of the child seat, and the convex portion or the concave portion provided on the extension member is provided. A child seat which is movable in a direction in which a concave portion or a convex portion provided on the sleeve wall portion extends.