WO2019026497A1

WO2019026497A1 - Child car seat

Info

Publication number: WO2019026497A1
Application number: PCT/JP2018/024742
Authority: WO
Inventors: 慎也藤田; 秀一鶴見; 田村　尚之
Original assignee: 株式会社カーメイト
Priority date: 2017-08-01
Filing date: 2018-06-28
Publication date: 2019-02-07
Also published as: JP6966891B2; JP2019026147A

Abstract

This child car seat (10) is characterized by comprising: a seat body (12) that carries an infant; shoulder belts (22) that restrain the infant on the seat body (12); shoulder belt raising parts (30) that lift the shoulder belts (22) up from a rear surface part (16) of the seat body (12) and form a release space; and a movable part (40) that connects to the ends of the shoulder belt raising parts (30), the movable part (40) switching the shoulder belt raising parts (30) to a state of being lifted up from the rear surface part (16) and to a state of being laid down along the rear surface part (16).

Description

child seat

The present invention relates to a child's seat provided with a shoulder belt for restraining infants (infants (children under 1 year old) and infants (children from 1 year old to elementary school) combined) on the seat body.

Child seats are used to improve the safety of infants when riding. The child seat includes a seat body attached to a vehicle seat, left and right shoulder belts for restraining the shoulders of the baby, and a waist belt for restraining the hips of the baby. The shoulder belt and the waist belt restrain the infant at a total of five points of upper two points and lower three points by being locked to the buckle of the seat body. The shoulder belt provided with the clasps hangs down due to its weight, so it becomes an underlay when putting the baby on the seat and the handling becomes troublesome.

Therefore, the child seat disclosed in Patent Document 1 has a sheet holding structure capable of forming a release space by pressing the cover main body away from the seat main body by elastic repulsion in which the pressing portion is in contact with the sheet main body. Have. Since the shoulder belt can be held in the opening direction by such a configuration, the shoulder belt can be easily restrained by the belt without drooping even before the baby is seated.

Patent No. 5258206 gazette

The use of seat belts changes with the growth of infants. That is, when placing an infant, the seat belt of the vehicle is used for restraint. Therefore, in the case of an infant, the shoulder belts previously attached to the child seat are not necessary.
At this time, when the infant is seated on the seat body, the shoulder belt is urged in the direction to form the open space, so that the back of the infant repels and gives a feeling of discomfort. In addition, the shoulder belts become underlays of the infant and similarly cause discomfort.

SUMMARY OF THE INVENTION In view of the problems of the prior art, it is an object of the present invention to provide a child safety seat that can accommodate a shoulder belt when not in use. Another object of the present invention is to provide a child seat that can be seated comfortably even when the infant's seat belt is worn.

As a first means for solving the above problems, the present invention provides a seat body on which an infant is placed,
A shoulder belt for restraining the baby on the seat body;
A shoulder belt lifting portion which raises the shoulder belt from the back surface of the seat body to form a release space;
A child safety seat characterized by comprising: a movable part connected to one end of the shoulder belt lifting part to switch between raising the shoulder belt raising part from the back part and falling down along the back part; It is to provide.
According to the first means, an infant wearing a seat belt without using a shoulder belt does not feel uncomfortable without contact with the shoulder belt lifting portion.

As a second means for solving the above problems, the present invention is characterized in that, in the first means, the back surface portion is provided with a recess for accommodating the shoulder belt and the shoulder belt spring-up portion. To provide a child seat that
According to the second means, the shoulder belt and the shoulder belt spring-up portion which are not used when the seat belt is worn can be accommodated in the back surface.

As a third means for solving the above problems, according to the present invention, in the first or second means, the shoulder belt raising part is a flexible cable using a coiled metal wire. It is providing a child seat characterized by a certain thing.
According to the above-mentioned third means, the release space of the shoulder belt can be easily formed. In addition, even if the baby's shoulder is in contact with the baby's shoulder in a state of being flipped up due to a suitable elastic force of the coiled metal wire, it does not easily deform along the shoulder and cause discomfort.

As a fourth means for solving the above-mentioned problems, according to the present invention, in the means according to any one of the first to third aspects, the movable portion is
A flip-up holding part having a pair of shoulder belt flip-up parts connected to both ends of the shaft, a rotary shaft disposed horizontally, and a slide on the outer periphery;
An operation lever with which the outer periphery of the shoulder belt lifting portion and the convex portion at the tip contact;
An elastic body that biases the operation lever toward the rotation axis from a direction orthogonal to the rotation axis of the flip-up holding unit;
Equipped with
The child seat is characterized in that the shoulder belt lifting portion is rotatable around an axis of the lifting portion, and the projection and the slide are engaged when the shoulder belt lifting portion is lifted from the back surface. To provide.
According to the fourth means, the shoulder belt lifting portion can be fixed in a raised state. In addition, the infant wearing the seat belt without using the shoulder belt does not feel discomfort without contact with the shoulder belt lifting portion.

As a fifth means for solving the above problems, according to the present invention, in the fourth means, the flip-up holding portion is configured to raise the shoulder belt when the tip of the operation lever is separated from the slide. It is an object of the present invention to provide a child safety seat which is characterized in that it rotates by its own weight and the shoulder belt lifting portion fits in the recess.
According to the fifth means, it is possible to release the bouncing portion of the shoulder belt bouncing portion by one operation of the operation lever and store the bouncing portion in the recess. When the seat belt is worn, the infant does not feel uncomfortable without contact with the shoulder belt lifting portion.

As a sixth means for solving the above-mentioned problems, according to the present invention according to any one of the first to third means, the movable portion is
A flip-up holding portion integrally formed with the shoulder belt flip-up portion and having first and second bent portions with the shoulder belt flip-up portion;
A holder for supporting the raising portion;
Equipped with
The shoulder belt flip-up portion is rotatable around an axis of the flip-up holding portion, and when the shoulder belt flip-up portion is lifted from the back surface portion, the space between the first and second bent portions is the holder. An object of the present invention is to provide a child seat that is characterized by fitting.
According to the sixth means, the shoulder belt lifting portion can be fixed in a raised state. In addition, the infant wearing the seat belt without using the shoulder belt does not feel discomfort without contact with the shoulder belt lifting portion.

As a seventh means for solving the above-mentioned problems, according to the present invention, in the first to third means, the movable portion is
A ball axis connected with an end of the shoulder belt raising portion;
A bearing rotatably supporting the ball shaft;
Equipped with
The child seat is characterized in that the shoulder belt lifting portion is rotatable around the ball axis, and the ball axis is fixed to the holder when the shoulder belt lifting portion is lifted from the back surface. It is to provide.
According to the seventh means, the shoulder belt lifting portion can be fixed in a raised state. In addition, the infant wearing the seat belt without using the shoulder belt does not feel discomfort without contact with the shoulder belt lifting portion.

According to the present invention, since it is possible to accommodate the shoulder belt and the shoulder belt lifting portion which are unnecessary when seating the infant, the infant does not come in contact with and feel uncomfortable. Further, the stored shoulder belt and shoulder belt spring-up portion can be easily switched to the state in which the shoulder belt spring-up portion is raised from the back surface portion by the operation of the movable portion, and hence it is convenient.

It is a perspective view of a child seat of the present invention. It is an explanatory view of a shoulder belt bounce part and a movable part. It is explanatory drawing of the movable part which a convex part fits on a slide. It is explanatory drawing in which a convex part remove | deviates from a slide and a shoulder belt flip-up part is accommodated in a recessed part. It is a front view of modification 1 of a shoulder belt bounce part and a movable part. It is a front view of modification 2 of a shoulder belt bounce part and a movable part.

Embodiments of the child seat of the present invention will be described in detail below with reference to the accompanying drawings.

[Child Seat 10]
FIG. 1 is a perspective view of a child seat according to the present invention. FIG. 2 is an explanatory view of a shoulder belt lifting portion and a movable portion. The child seat 10 of the present invention includes a seat body 12 on which an infant sits, a shoulder belt 22 and a waist belt 18 for restraining the infant, a shoulder belt bounce-up portion 30 forming a release space for the shoulder belt 22, and a shoulder belt bounce-up portion A movable portion 40 for moving the lens 30 is a main basic configuration.

[Sheet body 12]
The seat body 12 includes a seat portion 14 and a back portion 16. The seat portion 14 is provided with a waist belt 18 and a buckle 20. The back surface portion 16 is provided with a shoulder belt 22, a back surface movable portion 24, a recess 26, a shoulder belt lifting portion 30 to be described later, and a movable portion 40.
The back movable portion 24 can adjust the height position of the back according to the size of the baby, such as the baby time and the baby time.
The recess 26 is formed in a concave shape from the surface of the back surface portion 16 so that the shoulder belt 22 and the shoulder belt lifting portion 30 can be stored.

[Shoulder belt lifting portion 30]
The shoulder belt lifting portion 30 is a member capable of forming a release space in contact with the lower surfaces of the left and right shoulder belts 22. The shoulder belt lifting portion 30 of the present invention is a flexible cable using a coiled metal wire and has a predetermined flexibility. In addition to this, it is also possible to apply a flexible (for example, a polyethylene film or the like) cable using a flat metal wire. In addition, the cable of this invention is not limited to a metal wire, You may use existing materials, such as resin.

[Movable part 40]
FIG. 3 is an explanatory view of a movable portion in which the convex portion is fitted to the slider. FIG. 4 is an explanatory view in which the protrusion is detached from the lid and the shoulder belt lifting portion is accommodated in the recess. The movable portion 40 has a flip-up holding portion 42 connected to the end of the shoulder belt flip-up portion 30, an operation lever 44 contacting in a direction orthogonal to the flip-up holding portion 42, and a flip-up holding portion 42. An elastic body 46 is provided which is biased toward the end.

The flip-up holding portion 42 is a shaft which is disposed with its axis horizontal at the back face portion 16 and is axially supported by bearings at both ends, and is rotatable around the axis. The flip-up holding portion 42 has one end of the shoulder belt flip-up portion 30 connected to both ends of the outer peripheral surface, and the other end extends in the direction intersecting the axis. Further, the flip-up holding unit 42 is provided with a slit 421 at the center of the outer peripheral surface. The slider 421 is formed in a concave shape in which a sector having a central angle of 90 degrees is cut out so that a corner of a cross section of a convex portion 441 of the operation lever 44 described later can be fitted (see FIG. 3).

The operation lever 44 is a member that moves forward and backward in the direction orthogonal to the flip-up holding unit 42. The upper end of the operation lever 44 is provided with a convex portion 441 having a rectangular cross section to be fitted with the above-mentioned slide 421.

The elastic body 46 is a coil spring having one end fixed to the sheet main body 12 and the other end fixed to the flip-up holding portion 42. The elastic body 46 as described above urges the operating lever 44 from the direction perpendicular to the axial center of the holding portion 42 and urges the same toward the axial center.

[Effect]
The operation of the child seat 10 of the present invention according to the above configuration will be described below.
When placing an infant (sometimes an infant), in particular, on the seat body 12, the shoulder belt 22 and the waist belt 18 are used to restrain the infant. When the shoulder belt lifting portion 30 is lifted from the back surface 16 in advance, the lifting portion 42 rotates about its axis. At this time, the operation lever 44 is in contact with the outer peripheral surface of the flip-up holding portion 42. When the shoulder belt flip-up portion 30 flips up to a predetermined position, the convex portion 441 at the tip of the operation lever 44 is fitted to the slide 421 provided on the outer periphery of the flip-up holding portion 42 (see FIG. 3). As a result, the shoulder belt lifting portion 30 is locked and maintained in the state where the release space of the shoulder belt 22 is formed on the seat body 12. In this state, the baby can be placed on the seat body 12, and the locking portions of the shoulder belt 22 and the waist belt 18 can be fixed to the buckle 20 to be easily restrained. The shoulder belt raising portion 30 disposed on the inside of the shoulder belt 22 is a flexible cable using a coiled metal wire, which deforms flexibly according to the baby's shoulder and is not suitable for the baby. There is no pleasure.

On the other hand, when placing the infant on the seat body 12, the seat belt for the vehicle is used to restrain. At this time, the shoulder belt 22 and the waist belt 18 previously attached to the seat body 12 become unnecessary. Therefore, when the operation lever 44 is pushed in the direction opposite to the direction in which the elastic body 46 is urged, the self-weight of the shoulder-belt spring-up portion 30 and the weight of the shoulder belt 22 cause the spring-back state to fall along the back surface 16 . The shoulder belt 22 and the shoulder belt bounce-up portion 30 can be accommodated in the recess 26 as the shoulder belt bounce-up portion 30 falls down. Then, when the control lever 44 is released, the elastic body 46 exerts a force to urge the outer periphery of the raising and holding portion 42 again, and the convex portion 441 contacts the outer peripheral surface of the raising and holding portion 42. When the shoulder belt lifting portion 30 is to be lifted again, the shoulder belt lifting portion 30 can be fixed at a position where the slider 421 and the convex portion 441 fit with each other by lifting the shoulder belt lifting portion 30 upward.

According to such a child seat 10 of the present invention, it is possible to easily switch between the flip-up state and the fall-down state by the rotation operation of the shoulder belt flip-up portion 30. When the shoulder belt raising portion 30 is in the raising state, the raising state can be locked and maintained by the operation lever 44. In the state of falling down, the shoulder belt 22 and the shoulder belt lifting portion 30 can be accommodated in the recess 26.

[Modification 1]
FIG. 5: is a front view of the modification 1 of a shoulder belt flip-up part and a movable part. Movable part 40A of modification 1 consists of U-shaped holder 48 and flip up holding part 42A by plane view. The flip-up holding portion 42A is integrally formed with the shoulder belt flip-up portion 30A (the same material), and is a first bent portion 422 bent at a substantially right angle (slightly obtuse angle) from the flip-up holding portion 42A side; It has a second bent portion 423 bent at an obtuse angle. The flip-up holding portion 42A is disposed in the form of a horizontal shaft having a shaft shape rotatable about the shaft, and is rotatably supported by the holder 48.
The shoulder belt bounce-up portion 30A and the movable portion 40A according to the first modification have the holder 48 between the first and second

bent portions

422 and 423 when the shoulder belt bounce-up portion 30A is in the flip-up state. It can be biased toward and held in the holder 48 to maintain the flipped up state. When the shoulder belt lifting portion 30A is accommodated in the recess (not shown), the pair of shoulder belt lifting portions 30A are made to approach each other and released from the holder 48 first. Next, it is rotated around the axis of the flip-up holding portion 42A of the movable portion 40A to move the shoulder belt flip-up portion 30A downward and then released. Thereby, shoulder belt spring-up part 30A can be stored in a crevice (not shown).
When the shoulder belt lifting portion 30A is to be flipped up, the reverse operation of FIG. 5 is performed.
According to the child seat of the first modification, it is possible to easily switch between the flipped up state and the fallen down state by the rotation operation of the shoulder belt flipped up portion 30A.

[Modification 2]
FIG. 6 is a front view of a second modification of the shoulder belt lifting portion and the movable portion. The movable portion 40B of the second modification has a ball shaft 49 and a bearing 50. The ball shaft 49 is connected to the end of the shoulder belt lifting portion 30B. The ball shaft 49 is rotatably supported by the bearing 50.
In the shoulder belt bounce-up portion 30B and the movable portion 40B of the second modification with such a configuration, the ball shaft 49 is fixed to the bearing 50 at an arbitrary position and the shoulder belt bounce-up portion 30B can be maintained in the flip-up state. Then, when the shoulder belt bounce-up portion 30B is accommodated in the recess (not shown), first, the pair of shoulder belt bounce-up portions 30B are rotated so as to approach each other to move the shoulder belt bounce-up portion 30B downward Can be stored in a recess (not shown).
According to the child seat of the second modification, it is possible to easily switch between the flipped up state and the fallen down state by the rotation operation of the shoulder belt flipped up portion 30B.

The present invention has industrial applicability in the vehicle-related field such as a child seat intended particularly for infants.

DESCRIPTION OF SYMBOLS 10 ......... Child seat, 12 ......... Seat main body, 14 ......... Seat surface part, 16 ......... Back part, 18 ......... Waist belt, 20 ......... Buckle, 22 ......... Shoulder belt, 24 ......... ... Movable part on the back surface, 26 ... ... recessed part,
30, 30A, 30B ......... Shoulder belt lifting part,
40, 40A, 40B ...... Movable part, 42 ...... Jumping holding part, 421 ...... Slid, 422 ...... 1st bending part 423 ...... 2nd bending part 44 ...... Operation lever , 441 ...... Protrusive part, 46 ......... Elastic body, 48 ......... Holder, 49 ... ... Ball axis, 50 ... ... Bearing.

Claims

The seat itself to carry the baby,
A shoulder belt for restraining the baby on the seat body;
A shoulder belt lifting portion which raises the shoulder belt from the back surface of the seat body to form a release space;
A child safety seat comprising: a movable portion connected to one end of the shoulder belt lifting portion to switch between raising the shoulder belt lifting portion from the back surface and switching the shoulder belt rising edge along the back surface.
The child seat according to claim 1, wherein the back surface portion is provided with a recess for receiving the shoulder belt and the shoulder belt lifting portion.
The child seat according to claim 1 or 2, wherein the shoulder belt lifting portion is a flexible cable using a coiled metal wire.
The movable portion is
A flip-up holding portion having a pair of shoulder belt flip-up portions connected to both ends of the shaft and having a rotary shaft disposed horizontally and having a slide on the outer periphery;
An operation lever with which the outer periphery of the shoulder belt lifting portion and the convex portion at the tip contact;
An elastic body that biases the operation lever toward the rotation axis from a direction orthogonal to the rotation axis of the flip-up holding unit;
Equipped with
The shoulder belt flip-up portion is rotatable around an axis of the flip-up holding portion, and the convex portion and the slide fit with each other when the shoulder belt flip-up portion is lifted from the back surface portion. The child seat according to any one of claims 1 to 3.
The spring-up and hold-up unit is characterized in that when the projection is removed from the lid, the spring-up unit is rotated by the weight of the shoulder-belt jump-up unit and the shoulder-belt jump-up unit is accommodated in the recess. Child seat as described in.
The movable portion is
A flip-up holding portion integrally formed with the shoulder belt flip-up portion and having first and second bent portions with the shoulder belt flip-up portion;
A holder for supporting the raising portion;
Equipped with
The shoulder belt flip-up portion is rotatable around an axis of the flip-up holding portion, and when the shoulder belt flip-up portion is lifted from the back surface portion, the space between the first and second bent portions is the holder. The child safety seat according to any one of claims 1 to 3, characterized in that it fits.
The movable portion is
A ball axis connected with an end of the shoulder belt raising portion;
A bearing rotatably supporting the ball shaft;
Equipped with
The shoulder belt lifting portion is rotatable around the ball axis, and the ball axis is fixed to the holder when the shoulder belt lifting portion is lifted from the back surface portion. The child seat according to any one of 1 to 3.