JP2582394Y2 - Child seat - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a child seat mounted on a seat cushion of a vehicle seat.

[0002]

2. Description of the Related Art Conventionally, a child seat has been used to seat a child in a passenger seat or a rear seat of a vehicle.
There are various types of child seats, and among them, those having a reclining mechanism for inclining the child seat body at a predetermined angle with respect to the base have already been devised. In addition, not only a reclining mechanism but also a child seat in which a child seat body is configured to be detachable from a base has been devised.

[0003]

However, in the above-mentioned child seat, the reclining mechanism and the attaching / detaching mechanism are configured separately and independently. Therefore, not only a strength member dedicated to the reclining mechanism is required, but also a strength member dedicated to the attachment / detachment mechanism. Therefore, there arises a problem that the number of parts increases and the structure becomes complicated. In addition, since the number of parts increases, the cost of manufacturing increases.

The present invention has been made in view of the above-described circumstances, and has as its object to obtain a child seat that has both a reclining function and a detachable function and can be simplified in structure.

[0005]

According to the present invention, there is provided a base fixed to a seat cushion of a vehicle seat by using webbing for an adult, and a child seat detachably attached to the base. The body and the child seat body are moved relative to the base to change the tilt angle of the child seat body with respect to the base, and
A child seat comprising: a reclining mechanism and an attaching / detaching mechanism that make the child seat main body detachable from the base by relatively moving the child seat main body to a predetermined position with respect to the base. In addition, at both sides of the base provided with rail portions serving as tracks when the child seat body is relatively moved, between the upper end surfaces which are located near the waist of the child seated on the child seat body, The base is fixed to a seat cushion of a vehicle seat by winding a webbing for the vehicle. According to a second aspect of the present invention, in the child seat according to the first aspect of the present invention, the child seat body is relatively opposed to a front end of a rail provided on both sides of the base. By being moved, it is configured to be rotatable in a direction away from the base with the front end as a center of rotation.

[0006]

According to the first aspect of the present invention, the tilting angle of the child seat body with respect to the base is changed by moving the child seat body relative to the base using the reclining mechanism and the attaching / detaching mechanism. You. That is,
The function as a reclining mechanism is secured. Further, according to the present invention, the child seat body can be detached from the base by relatively moving the child seat body to the predetermined position with respect to the base using the reclining mechanism and the attaching / detaching mechanism. That is, the function as the attachment / detachment mechanism is secured. That is, according to the present invention,
The reclining mechanism is also used as a mechanism for attaching and detaching the child seat body to and from the base. Therefore, the strength member only needs to be provided only for the reclining mechanism. For this reason, the number of parts of the strength member is reduced. This also allows the structure of the child seat to be simplified. In addition, according to the present invention, on both sides of the base provided with the rails serving as tracks for the relative movement of the child seat body, the position is close to the waist of the child seated on the child seat body. The base is fixed to the seat cushion of the vehicle seat by wrapping the adult webbing between the upper end surfaces, so that the restraint performance of the child at the time of rapid deceleration of the vehicle can be improved. In other words, in general, the more the adult webbing is wrapped around the base, the farther from the waist of the seated child,
The moment acting when the child moves by inertia at the time of sudden deceleration of the vehicle increases, and the restraining performance of the child tends to decrease. On the other hand, according to the present invention, on both sides of the base provided with the rails serving as tracks when the children's seat body is relatively moved, the position becomes closer to the waist of the child sitting on the children's seat body. Since the webbing for adults is wound between the end faces to fix the base to the seat cushion of the vehicle seat, the moment acting upon sudden deceleration of the vehicle is reduced. Therefore, according to the present invention, it is possible to improve the restraint performance of the child during sudden deceleration of the vehicle. Moreover, according to the present invention, since the adult webbing is wound around the upper end surfaces of both sides of the base, the webbing for adults is inserted between the middle portions in the height direction of both sides of the base and fixed. In addition, the operability is excellent because the work of “passing the webbing through a narrow place” is not required. According to the second aspect of the present invention, the above-mentioned child seat body is moved relative to the front ends of the rails provided on both sides of the base, so that the front end is made. Since it is configured to be rotatable in the direction away from the base as a rotation center, it is possible to secure the space above the base and to fix the base to the seat cushion using webbing for adults. . More specifically, according to the present invention, the base is fixed to the seat cushion by wrapping the webbing for an adult between the upper end surfaces of both sides of the base. If the child seat body can be rotated (tilted up) around the front end as in the present invention, the space above the base can be sufficiently secured, and the fixing operation of the base using the webbing for adults can be more easily performed. Become.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A child seat 10 to which the present invention is applied will be described below with reference to FIGS. The child seat 10 is an infant seat (abbreviated to IRS) for carrying an infant from 6 months to less than 1 year old, and a child seat (IRS) for carrying an infant from 1 year old to less than 4 years old. This can be used for any of CRS).

As shown in FIGS. 1 and 2, the child seat 10 is composed of a base 12 and a child seat body 14 mounted on the base 12. FIG. 1 shows the base 12 and the child seat body 14 separated from each other, and FIG.
Indicates a normal use state in which the seat cushion 16A of the vehicle seat 16 is fixed. Hereinafter, the child seat body 14, the base 12, the reclining mechanism, and the attaching / detaching mechanism will be described in this order.

[Explanation of the Child Seat Body 14] The child seat body 14 includes a curved shell 18 that matches the average posture of a seated child. The shell 18 is made of relatively high rigidity and made of resin.
Are the frame members of the child seat body 14.

A relatively thick cushion pad formed of urethane or the like and covered with a skin material is disposed on the lower surface of the shell 18. A relatively thin back pad formed of urethane or the like and covered with a skin material is disposed on the upper surface of the shell 18. Thereby, the seat back and the seat cushion are integrally formed. Further, in the child seat body 14, the shell 1
Side support support portions 18A are integrally formed on both sides of the lower portion of the support member 8. A webbing insertion hole 19 is formed in the side support support portion 18A, and a side support 20 for supporting both sides of the child's waist is fitted.

A headrest 22 is provided at the upper end of the shell 18. The headrest 22 is provided so as to be slidable by a predetermined amount in the height direction of the shell 18. When the headrest 22 slides,
The headrest lower pad 24 provided integrally with the headrest 22 also slides together.

A pair of child restraint belts 26 is inserted through the center of the headrest 22. The child restraining belt 26 is forked at a middle portion in the longitudinal direction.
The proximal end of the child restraint belt 26 is wound around an ELR-type webbing winding device (not shown) provided below the shell 18, and a tongue plate 28 is provided at a distal end of a forked portion. Each is attached. These tongue plates 28 are provided with a crotch buckle 30 erected near the front end of the seat cushion of the shell 18.
Is engaged.

[Description of Base 12] On the other hand, as shown in FIG. 5, the base 12 has a base 12A which is a portion to be placed on a seat surface of a seat cushion 16A of a vehicle seat 16, and a base 12A behind the base 12A. And an upright portion 12B standing upright from the end and pressed against the surface of the seat back 16B. And the base 12 is the base 1
The vehicle seat 16 is fixed using a three-point webbing 32 at a portion where the 2A and the upright portion 12B meet. That is, the webbing 32 on the shoulder side
After the A and the webbing 32B on the wrap side are locked and overlapped by the E-clip 34, the webbing 32B is wrapped around the upper end surface of the base 12 as it is, and the tongue plate 36 is engaged with the buckle device 38. Are fixed to the seat surface of the seat cushion 16A.

[Description of Reclining Mechanism and Attaching / Detaching Mechanism] The above-described child seat body 14 is configured to be tiltable at a predetermined angle with respect to the base 12, and the reclining mechanism for that purpose will be described in detail below.

A pair of rail portions 40 are formed on both sides of the base 12 described above. The rail section 40 is curved at a predetermined angle. These pair of rail portions 40
Is generally constituted by a roller guide section 42 and a rod guide section 44.

The roller guide 42 is provided on the base 1 of the base 12.
It is provided on the 2A side. Each roller guide portion 42 is formed in a U-shaped cross section by a bottom surface and an inner side surface of the base 12 and a guide wall extending from the upper end of the inner side surface in a direction approaching each other. Thereby, the roller guide 4
2 is formed with a roller guide groove 42A. And
A pair of rollers 64 of the child seat body 14 to be described later are rollably fitted into these roller guide grooves 42A. In addition, the front end of the roller guide portion 42 is
4 is closed by a substantially arc-shaped wall 46 corresponding to the outer diameter of the outer wall 4.

On the other hand, the rod guide portion 44 is provided on the upright portion 12B side of the base 12. As shown in FIG. 7, each rod guide portion 44 is formed by bending an iron plate into a U-shape and fixed to the upright portion 12 </ b> B of the base 12 with bolts 48 and nuts 50, and fitted into the frame 52. And a guide member 54 made of resin. In the intermediate portion of the guide member 54, a child seat body 1 described later
A rod guide groove 44A having a groove width slightly larger than the outer diameter of the pair of four rods 66 is formed. Further, a plurality of rod fitting holes 56 and 57 are formed coaxially at predetermined intervals on the bottom surface of the rod guide groove 44A and the frame 52, respectively. These plurality of rod fitting holes 56, 57
The rod 66 is selectively inserted into any one of the above. Further, the upper end portion of the rod guide portion 44 is enlarged in diameter to form an open portion 58 (see FIGS. 4 and 5).

As shown in FIG. 6, a substantially rectangular bulging portion 60 is formed on the upper surface of the back portion of the child seat body 14, and a protrusion 62 is formed on the lower portion thereof. I have. A pair of rollers 64 are pivotally supported by the protrusion 62, and the roller guide grooves 42 </ b> A of the roller guide 42 described above are provided.
And can roll along the roller guide groove 42A. A pair of rods 66 protrude coaxially from the lower end of the bulging portion 60, and the rod fitting hole 5 of the rod guiding groove 44 A of the rod guiding portion 44 described above is formed.
6, 57 can be selectively inserted.

The above-mentioned pair of rods 66 are pulled by pulling an operation knob 70 (see FIG. 1) disposed in an opening 68 provided at the front end of the child seat body 14.
It is configured to be retracted by a predetermined amount into the bulging portion 60 and to be removed from the rod fitting hole 56, and will be briefly described below.

As shown in FIGS. 7 and 8, an L-shaped lever 72 is connected to each rod 66.
The pair of levers 72 are supported at their bent portions by the pivot pins 7.
At 4, it is rotatably supported. A long hole 76 is formed at one end of the lever 72.
A traction pin 78 is inserted into the hole. The traction pin 78 passes through the rod 66 in a direction perpendicular to the axis. Thus, the rod 66 and the lever 72 are connected. A compression coil spring 83 is interposed between the pair of traction pins 78. Therefore, the compression coil spring 83 is connected to the pair of rods 66.
Are pressed and urged in a direction to separate them from each other (that is, a direction in which the pair of rods 66 are fitted into the rod fitting holes 56 and 57).

The other end of the lever 72 has a long hole 80.
Are formed, and the connecting pin 82 is loosely fitted in a state where the long holes 80 are overlapped. A wire 86 of a cable 84 locked by a clamp 83 between the levers 72 is wound around the outer periphery of the connecting pin 82. Thus, the pair of levers 72 and the wire 86 are connected. Note that one end of the cable 84 is connected to the operation knob 70. Therefore, when the operation knob 70 is pulled, the wire 86 of the cable 84 is changed to the arrow A in FIG.
The pair of levers 72 is pivoted in the direction of arrow B in FIG. Thus, the pulling pins 78 pull the rods 66 in directions approaching each other against the urging force of the compression coil spring 83.

The pair of roller guides 4 described above
A cutout 88 is formed at the connection between the rod guide 2 and the rod guide 44. The notch width of each notch 88 is larger than the outer diameter of the roller 64. Therefore, the notch 8
By locating the roller 64 at 8, the roller 64 can be separated from the roller guide 42.

An arc-shaped escape groove 90 is formed in the pair of rod guides 44 near the notch 88 side end. The groove width of these retraction grooves 90 is slightly larger than the outer diameter of the rod 66. Therefore, the rod 6 is inserted into the evacuation groove 90.
By positioning 6, the rod 66 can be detached from the rod guide 44.

When the pair of rollers 64 is positioned at the front end of the roller guide groove 42A, the pair of rollers 66 is positioned at the base end of the retraction groove 90.
The length between the roller 64 and the rod 66, the length of the roller guide portion 42, and the length of the rod guide portion 44 are set so that the pair of rods 66 are positioned in the open portion 58 when the 4 is located in the cutout portion 88. Is set.

The operation of this embodiment will be described below. First, a case where the child seat 10 is used as a child seat will be described.

First, the child seat 10 is connected to the vehicle seat 1.
The operation of attaching the seat cushion 16A to the seat cushion 16A is performed in the following procedure.

With the child seat body 14 already mounted on the base 12, the seat cushion 16A
First, the child seat 10 is placed on the seat surface of the seat cushion 16A. Next, it is checked whether or not the reclining position is set to the lowest position. If the reclining position is set to the lowest position, the operation knob 70 is gripped and pulled. Thereby, the pair of rods 6
6 slightly retreats into the bulging portion 60, so that a pair of rods 6
The engagement between the rod 6 and the rod fitting hole 56 of the frame 52 is released.

Next, as shown in FIG. 4, a pair of rollers 64 positioned at the front end position (position of the wall 46) of the roller guide groove 42A is used as a center of rotation, and the child seat body 14 is rotated.
Is rotated in the direction of arrow C in FIG. 4 (hereinafter referred to as “tilt up”). As a result, the distal ends of the pair of rods 66 are separated from the rod guides 44 while passing through the evacuation grooves 90. In this state, the space above the base 12A of the base 12 is sufficiently ensured.

Next, in this state, the base 12 is fixed to the seat surface of the seat cushion 16A by using the adult webbing 32. That is, the webbing 32A on the shoulder side and the webbing 32B on the lap side are locked by using the E-clip 34 in a state of being overlapped, and then the upper end surface of the base 12 is wrapped around the buckle device 3.
8. Thus, the base 12 is securely fixed to the seat surface of the seat cushion 16A.

Next, the child seat body 14 which has been tilted up is returned to its original state. When the operation knob 70 is released after the return, the pair of rods 66 are pressed in a direction away from each other by the urging force of the compression coil spring 83 and are fitted into the predetermined rod fitting holes 56 and 57. From the above,
The operation of attaching the child seat 10 to the seat cushion 16A is completed.

The above-described mounting operation of the child seat 10 may be performed by fixing only the base 12 to the seat cushion 16A first, and then mounting the child seat body 14 without the above-described procedure. Is also good.

Next, the reclining operation will be described. The following procedure is used to change from a predetermined reclining position to another reclining position.

First, the operating knob 70 is pulled to release the engagement between the pair of rods 66 and the rod fitting holes 56. When the operation knob 70 is pulled, the traction pin 78 is pulled through the wire 86 in the direction of arrow A in FIG. For this reason,
The pair of levers 72 is rotated in the direction of arrow B in FIG. 7, whereby the pair of rods 66 are pulled in a direction approaching each other against the urging force of the compression coil spring 83. Accordingly, the engagement between the pair of rods 66 and the rod fitting holes 56 is released.

Next, the child seat body 14 is slid along the rail portion 40 to a desired position. More specifically, in a state where the pair of rollers 64 is fitted in the roller guide groove 42A of the roller guide portion 42, and in a state where the pair of rods 66 are fitted in the rod guide groove 44A of the rod guide portion 44, the child Sheet body 14 is slid.

When the child seat body 14 is slid to a desired position, the operation knob 70 is released. Thus, the pair of rods 66 are biased by the urging force of the compression coil spring 83.
Are pushed in the directions away from each other, and the rod fitting holes 56,
57. Thereby, the child seat body 14
Reclining position is changed to the optimal position according to the child's physique.

After the reclining angle of the child seat body 14 is adjusted as described above, the child is seated on the child seat body 14. Then, the tongue plate 28 of the child restraint belt 26 is
0 is engaged. As a result, the child is restrained by the child restraint belt 26. In this state, when the vehicle suddenly decelerates, the load acting on the child restraint belt 26 due to the inertial movement of the child toward the front of the vehicle is transmitted from the child seat body 14 to the frame 52 of the base 12, and then the base The power is transmitted to the vehicle body via the webbing 32 fixing the power supply 12.

Next, the base 12 of the child seat body 14 is
The operation of withdrawing from the server will be described. Note that this operation
This is necessary, for example, when parking and attaching the child seat body 14 to a buggy car to carry an infant. less than,
The leaving operation will be described. There are two methods of leaving.

The first method is as follows. First, the child seat body 14 is tilted up. That is, the engagement between the pair of rods 66 and the rod fitting holes 56 is released by pulling the operation knob 70, and the child seat body 14 is slid along the rail portion 40 to the lowest position. Next, the child seat body 14 is rotated in the direction of arrow C in FIG.
As a result, the rod 66 is separated from the rod guide groove 44A through the evacuation groove 90.

Next, the child seat body 14 is slid rearward along the pair of roller guides 42 while maintaining the tilt-up state. The sliding amount is determined by the pair of rollers 64 located on the wall 46 and the notch 8.
It is said that it is located at 8. Then, a pair of rollers 64
Is reached, the pair of rollers 64 are separated from the notch 88. Thereby, the child seat body 1
4 is detached from the base 12.

The second method is as follows. First, the child seat body 14 is slid to the highest position by the reclining operation described above. In this state, the pair of rods 66 are located at the opening 58, and the pair of rollers 64 are located at the notch 88. Therefore, as shown in FIG. 3, if the child seat body 14 is slightly lifted as it is, the child seat body 14 comes off the pair of rail portions 40.

Next, the case where the child seat 10 is used as an infant seat will be briefly described.

In this case, only the child seat body 14 is used without using the base 12. Then, as shown in FIG. 9, the vehicle seat 1 is placed in a rearward facing state such that the baby in the seated state of the child seat body 14 faces the rear of the vehicle.
6 is fixed to the seat cushion 16A. The fixed operation is
This is performed by inserting the webbing 32 into the webbing insertion hole 19 provided in the side support support portion 18A of the shell 18 and engaging the tongue plate 36 with the buckle device 38.

As described above, in this embodiment, the child seat 1
0 is constituted by the base 12 and the child seat body 14 and can be attached and detached by using the reclining mechanism. That is, since the reclining mechanism is also used as the attaching / detaching mechanism, the strength member also has the frame 5 for the reclining mechanism.
Two is enough. Therefore, the number of parts can be reduced and the structure can be simplified. Further, cost can be reduced. Further, since the attaching / detaching operation can be performed compactly in the vehicle interior, the operability can be improved.

Further, in the present embodiment, the webbing 32 is raised by tilting up the child seat body 14.
The base 14 can be fixed to the seating surface of the seat cushion 16A by using the webbing 32.
Can be easily fixed. This point will be described in more detail. Generally, in a child seat, it is better that the position where the webbing is wound around the base is closer to the waist of the occupant (child). This is because, when the position where the webbing is wound becomes far from the waist of the occupant, the moment acting when the occupant moves by inertia at the time of rapid deceleration of the vehicle is increased, and the occupant restraining performance is reduced. Therefore, it is better that the upper end surface of the base (the position where the webbing is wound around) is higher, and the lower the seating surface of the child seat body 14 is, the better. When the webbing insertion hole is provided so as to satisfy such a condition, only a small width insertion hole (gap) can be provided. However, in this embodiment, since the child seat body 14 can be tilted up, the base 1
2 can sufficiently secure the upper space. Therefore,
The operation of fixing the base 12 by the webbing 32 can be easily performed after the winding position of the webbing 32 is set to the optimum position.

Further, in this embodiment, since the child seat body 14 is configured to be detachable from the base 12, when fixing the child seat body 14 to the seat cushion 16A of the vehicle seat 16, only the base 12 is first placed. The child seat body 14 may be fixed to the base 12 with the webbing 32, and then the child seat body 14 may be separately carried into the vehicle interior. Therefore, in this case, it is possible to put in and take out the apparatus in a reduced size.

In this embodiment, the child seat body 1 is used.
The method of tilting the detachment operation from the base 12 of step No. 4 and then detaching it, and the method of leaving the reclining position as it is at the highest position and leaving it as it is, are shown in two ways. The present invention can be applied to any configuration in which the child seat body 14 can be detached from the base 12 using a mechanism.

[0047]

As described above, the child seat according to the first aspect of the present invention is capable of reclining the child seat with respect to the base by using the reclining mechanism and the attaching / detaching mechanism. Since it can be performed, it has an excellent effect that the structure can be simplified while having both the reclining function and the attaching / detaching function. Further, the child seat according to the present invention according to the present invention is a child seated on a child seat body at both sides of a base provided with rail portions serving as tracks when the child seat body is relatively moved. The base is fixed to the seat cushion of the vehicle seat by wrapping the webbing for adults between the upper end surfaces that are close to the waist, so that the restraining performance of the child at the time of sudden deceleration of the vehicle can be improved. In addition, an excellent effect that the operability of fixing the base to the seat cushion can be improved can be obtained. The child seat according to the present invention according to claim 2 is the device according to claim 1, wherein the child seat body is relatively moved to the front end of a rail provided on both sides of the base. By doing so, since it is configured to be rotatable in a direction away from the base with the front end as a center of rotation, there is an excellent effect that the operability of fixing the base to the seat cushion can be further improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a child seat body and a base are separated.

FIG. 2 is a perspective view showing a normal use state when the child seat of FIG. 1 is used as a child seat.

FIG. 3 is a perspective view showing a case where the child seat body is moved to a reclining highest position from the normal use state of FIG. 2 and then detached from a base.

4 is a perspective view showing a case where the child seat body is tilted up from the normal use state of FIG. 2 and then detached from the base.

FIG. 5 is a perspective view showing a fixed state of the base to the seat cushion.

FIG. 6 is a rear view showing the child seat body viewed from the rear.

FIG. 7 is a sectional view taken along line 7-7 in FIG. 6, showing a part of the reclining mechanism centered on a pair of rods.

FIG. 8 is a sectional view taken along line 8-8 in FIG. 7;

FIG. 9 is a perspective view showing a use state when the child seat shown in FIG. 1 is used as an infant seat.

[Explanation of symbols]

 Reference Signs List 10 Children's seat 12 Base 14 Children's seat main body 16 Vehicle's seat 16A Seat cushion 40 Rail (reclining mechanism and attaching / detaching mechanism) 58 Opening section (attaching / detaching mechanism) 64 Roller (reclining mechanism and attaching / detaching mechanism) 66 Rod (reclining mechanism and Detachment mechanism) 88 Notch (detachment mechanism) 90 Evacuation groove (detachment mechanism)

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tomonhiro Amano 1st Noda, Toyota, Oguchi-machi, Oguchi-machi, Niwa-gun, Aichi Prefecture Tokai Rika Electric Works, Ltd. (56) References JP-A-63-65824 (JP, A) Japanese Utility Model Showa 63-43954 (JP, U) Japanese Utility Model Showa 64-29072 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B60N 2/28 A44B 11/18 B60N 2 / 10 B60R 22/10

Claims (2)

(57) [Scope of request for utility model registration] 1. An adult seat cushion for a vehicle seat.
Base fixed using webbing for children, and a child seat body detachably attached to the base
And move the child seat body relative to the base
The tilt angle of the child seat body with respect to the base
The child seat body to the base
The child's seat
Reclining so that the main unit can be detached from the base
A child seat configured to include a mechanism and a detachable mechanism, and further, a trajectory when the child seat body is relatively moved.
On both sides of the base where the rails
Near the waist of a child sitting on the main body
Around the adult webbing between the upper end surfaces
The base is fixed to the seat cushion of the vehicle seat
Child seat that was, characterized in that. 2. The child seat body according to claim 1, wherein the child seat body is
The front end of the rail part provided on both sides of the base
The front end by the relative movement
As rotatable in the direction away from the base
It is, child seat according to claim 1, characterized in that.