JP2001341561A - child seat - Google Patents

Abstract

(57) [Summary] [Problem] To easily confirm the attachment state of a child seat to a seat. SOLUTION: The seat of the vehicle is provided with a pair of mounting receiving portions on both sides provided with bars 8 respectively. Child seat 1
Includes a base body 11 and a sheet body 12. Base body 11
Is provided with a pair of engaging portions 40 on both sides, and these engaging portions 40 are attached to the bar 8 by being attached to the bar 8. The base body 11 includes a first engaging portion 55 and a second engaging portion 86. The sheet body 12,
After the first engagement receiving portion 21 is hooked on the first engagement portion 55, the second engagement receiving portion 22 is engaged with the second engagement portion 86, and
Fix to 11. Only when the first engagement receiving portion 21 is correctly engaged with the predetermined position A of the first engagement portion 55, the second engagement receiving portion
22 can be locked by engaging the second engaging portion 86.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a child seat which is attached to, for example, an automobile seat and seats a child.

[0002]

2. Description of the Related Art Conventionally, a child seat which has a seat body formed in a bucket shape or the like in accordance with the body shape of a child and is attached to a car seat to protect a seated child has been used. Conventionally, these child seats can be attached to a seat using a seat belt, and the attaching operation is complicated, and the attaching operation requires skill.

In this regard, in recent years, a so-called Isofix, which can easily and reliably fix a child seat to a seat, has been proposed.
(ISO-FIX) type devices have been developed and used. As such an apparatus, for example, Japanese Patent Laid-Open No.
The configuration described in JP 07630 Gazette is known. In this configuration, the automobile is provided with a pair of exclusive locking units on both sides located on the front and rear sides of the seat surface. The child seat includes a seat body, and a pair of support members on both sides attached to a lower portion of a seat surface of the seat body. Each support member is formed in a substantially J-shape in a side view in which the dimension in the front-rear direction can be adjusted. At both ends of each support member, a connector that is engaged with and attached to each locking unit is provided. ing. Furthermore, in this configuration, only when the predetermined connector is properly engaged with the locking unit, the tongue provided at the tip of the strap on both sides can be inserted and engaged with the slot provided at the front center of the seat body. An interlock mechanism is provided.

In such a device, a dedicated connector is attached to a locking unit prepared in advance on the seat side, so that the attaching / detaching operation can be easily performed without special skill and can be securely fixed. It has become.

[0005]

Further, at present, there is a demand for a structure which can be easily attached and detached and can be fixed securely.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a child seat that can be securely attached to a seat by a simple operation.

[0007]

According to a first aspect of the present invention, a child seat is provided near a seating surface, a seatback standing upright from a rear portion of the seating surface, and a connection portion between the seating surface and the seatback. A child seat attached to a seat provided with a mounting receiving portion, the seat body including a seat body capable of sitting thereon, an engaging portion which is lockably engaged with the mounting receiving portion, and a base on which the seat body is mounted. A base body having a main body, and an engagement device for attaching the sheet body to the base body, wherein the engagement device includes:
The sheet body and the base body are engaged at a plurality of positions, and at least at one position, the sheet body and the base body are engaged only in a state where the sheet body is normally engaged at another position. It locks with.

In this configuration, after the engaging portion is engaged with the attachment receiving portion to attach the base member to the seat, the seat member is attached to the base member by the engaging device, and the child seat is attached to the seat. Then, since the base body is attached to the seat independently of the seat body, it is easy to confirm the work of attaching to the seat. Further, the engagement device engages the sheet body and the base body at a plurality of positions, and
In at least one position, the sheet body and the base body are engaged and locked only in a state where they are normally engaged in other positions. Engagement is also confirmed, making it easy to confirm the work of attaching to the seat.

According to a second aspect of the present invention, in the child seat according to the first aspect, the engagement device includes a first engagement receiving portion provided on one of the sheet body and the base body, and the sheet body and the base. Provided on one side of the body,
A second engagement receiving portion spaced apart from the first engagement receiving portion; and a second engagement receiving portion provided on the other of the sheet member and the base member, and engaged with the first engagement receiving portion. A first engagement portion;
A second engaging portion which is lockably engaged with the second engaging receiving portion, and wherein the first engaging receiving portion is engaged with the first engaging portion at a predetermined position. The second engaging portion engages with the second engaging receiving portion to be lockable.

In this configuration, the first engagement receiving portion is engaged with the first engagement portion, and the second engagement receiving portion is engaged with the second engagement portion to lock. Thereby, the sheet body is easily attached to the base body.

According to a third aspect of the present invention, in the child seat according to the second aspect, the engagement device detects a state in which the first engagement receiving portion is engaged with the first engagement portion at a predetermined position. Means, locking means for locking the second engagement receiving portion to the second engagement portion, and link means for interlocking the detection means and the locking means.

In this configuration, the second engagement portion engages the second engagement reception portion while the first engagement reception portion is engaged with the first engagement portion at a predetermined position. Thus, a configuration that can be locked is easily realized.

[0013]

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

1 and 2, reference numeral 1 denotes a child seat. The child seat 1 is attached to an automobile seat (car seat) 2, and a child sits on the child seat 1 in use.

The seat 2 has a substantially horizontal seating surface 3 and a seatback 4 connected to the rear of the seating surface 3 and inclined upward toward the rear. Further, a pair of attachment receiving portions 6 on both sides is provided at a hinge portion at a lower portion of the seat back 4 so as to be located slightly above the upper surface of the seat surface 3. Each mounting receiving portion 6 includes a recessed portion 7 that can be opened forward at least as needed, and a bar 8 disposed inside the recessed portion 7. Each bar 8 is also called an isobar or an isofix bar, and is formed of a steel material in a column shape or the like, is disposed with both sides in the longitudinal direction, and is disposed below a frame (not shown) embedded in the seat back 4. Integrally formed,
Alternatively, they are formed separately and then connected by welding or the like.

The child seat 1 includes a seat body 11 as a seat body and a base body 12 to which the seat body 11 is detachably attached.

The seat body 11 includes a seat body 14 having a substantially L-shape in a side view, formed in a bucket seat shape in accordance with the body shape of a child. And this seat body 14
For example, a shell formed integrally with a hard synthetic resin and embedded with a steel main body frame or the like as necessary, and a soft cushion such as a urethane pad disposed at least on the seating side of the shell. And Further, the seat body 14 includes a substantially horizontal bottom surface portion 17 and a back surface portion 18 inclined rearward and upward.

Further, on the bottom surface portion 17 of the seat body 14, first and second locking metal fittings, which are a pair of front and rear mounting bars, are provided.
19 and 20 are provided. And these locking fittings 19,
Reference numeral 20 denotes a steel material which is located at a central portion in both side directions of the seat body 14 and is disposed at predetermined intervals in the front and rear directions, and is, for example, bent in a substantially U-shape. Are linked. The portions extending substantially horizontally in both side directions of the locking fittings 19 and 20 are a first engagement receiving portion 21 and a second engagement receiving portion 22 which are supported portions.

Although not shown, the seat body 14 includes
Shoulder harness (strap) to support the child's upper body
And a block for supporting the abdomen.

On the other hand, as shown in FIGS. 1 to 8, the base body 12 includes a base body 32 in which a metal frame 30 is covered with a cover 31 made of resin such as polypropylene.

The frame 30 has a frame main body 34. The frame main body 34 has a bottom plate 34a as required, and is formed by bending an extruded aluminum alloy square cylindrical pipe material so as to be substantially flat. U-shaped front frame
35, a pair of side frames 36, 36 fixed by welding or riveting so as to fit inside both ends of the front frame 35, and side frames 36, 36 located on both sides. A plurality of cross members 37 fixed by welding or riveting between the front frames 35 are combined to form a ladder-like frame structure.

The distal ends, which are the rear ends of the side frames 36, 36, form the arms 38, 38, which are attachments projecting to the rear side of the base body 32, respectively. Is provided with an engagement portion 40 which is a lock mechanism for detachably engaging (locking) the bar 8 of the attachment receiving portion 6.

Although not shown in each of the engaging portions 40,
A lock piece (hook) rotatably supported by a rotation support shaft having axial directions in both sides is provided. The lock piece has a first protruding piece projecting at a predetermined position, that is, an angle, and A second projection is formed. The lock piece is urged by a link, and is provided with a first V-shaped slit 42 at the tip end of each arm 38, that is, a rearward opening.
Are positioned at a position where the second protrusion protrudes and a position where the second protrusion protrudes. The link is connected to locking means, and each locking means is provided with a release lever 44 operable from above the base body 32. And this locking means,
When a force is applied to the lock piece, the lock piece rotates from the open position to allow the lock piece to rotate to the lock position, and the lock piece is fixed at this lock position. Then, in a state where the release lever 44 is pulled upward, the lock is released, and the rotation from the lock position to the release position is permitted.

The frame 30 is provided with a plate 48 having a substantially rectangular plane as a mounting surface by welding or the like on the cross member 37. The plate 48 has an opening 48
a and the uneven portions 48b are formed as appropriate to reduce the weight and maintain the strength.

Further, on the upper surface of the plate 48, a pair of hook fittings 51, 51 on both sides constituting a hook mechanism 50 are fixedly mounted on the front side, and located on the rear side.
A lock mechanism 53 is attached.

Then, each hook fitting 51 of the hook mechanism 50
Is fixed to the plate 48 with a plurality of screws 54, and at each side end, a hook portion 51a is located near the both ends of the frame 30 and is directed upward, that is, toward the seat body 14 side.
Are formed, and a first engaging portion 55 having the same shape is cut out in each hook portion 51a. That is, the first engagement portion 55 is open upward and has an arc shape extending forward and downward, and the first engagement receiving portion 21 inserted from above is correctly positioned at the predetermined position A at the distal end. In this state, the first engagement receiving portion 21 is engaged so as not to move upward.

Further, the hook mechanism 50 is provided with a hook restricting fitting 57 with a screw 58 so as to extend between the hook fittings 51 on both sides. The hook restricting fitting 57 is provided with a bearing portion 57a and a rotation restricting portion 57b.
A shaft 60 having both sides in the axial direction is supported by the bearing portion 57a. Further, a trigger 61 as a detecting means is rotatably supported on the shaft 60. The trigger 61 is provided with a pair of detecting portions 61a on both sides which are raised upward, and an operating portion 61b which is a bottom frame portion connected between the detecting portions 61a and cut off leaving a frame portion. .
Further, the trigger 61 is caused by a spring 62 which is an urging means having one end locked to the hook fitting 51 so that the detecting portion 61a faces rearward, that is, faces the intrusion direction of the first engagement receiving portion 21. Being energized. Therefore, in the state where no external force is applied, as shown in FIG. 4, the operating portion 61b rotates rearward to the locking position where it comes into contact with the upper surface of the hook metal member 51, and the detecting portion 61a vertically extends. After being set up, a predetermined position A
It will be in the state protruding inside. On the other hand, when the first engagement receiving portion 21 is inserted into the predetermined position A of the first engagement portion 55, the urging force of the spring 62 is exerted by the first engagement receiving portion 21, as shown in FIG. Detector 61a is pushed forward against this, and trigger 61 rotates, so to speak, the engagement between first engagement portion 55 and first engagement receiving portion 21 is detected, and the operating portion is actuated. 61b moves to an open position separated from the upper surface of the hook fitting 51.

On the other hand, the lock mechanism 53 is
And a lock member 66, a lock piece 66, a cam as a lock means, as shown in FIG.
67, a locking main shaft 71, a locking sub shaft 72, a cam main shaft 73, a cam sub shaft 74, a spring 75 as a tension spring as a biasing means, a plurality of spacers 76,
E-ring 77, which is a shaft stopper, and reinforcing plate for supporting bracket
78 and so on.

The support bracket 65 is formed by, for example, bending a metal plate, and has a substantially rectangular substrate portion 65a and the substrate portion 6a.
5a, a pair of side plate portions 65b on both sides extending from both side portions toward the upper side, that is, toward the seat body 14 side. And the board part 65a
Is formed with a through hole 65c into which a screw 80 for fixing the support fitting 65 to the plate 48 is inserted. Also, the side plates 6 on both sides
5b have the same shape, and a slit 65d that opens upward is formed in the middle part in the front-rear direction. Further, in this side plate portion 65b, a circular locking main shaft hole 81 is located behind the slit 65d, an arc-shaped guide shaft hole 82 is positioned below the locking main shaft hole 81, and a slit is formed. A circular cam-shaped main shaft hole 83 is formed in front of 65d, and an arc-shaped guide shaft hole 84 is formed below the cam main shaft hole 83. Further, between the mounting portions 65e provided above the side plate portion 65b, a support metal reinforcing plate 78 is erected and reinforced.

The lock piece 66 is formed in a plate shape having a predetermined thickness, and has a shaft hole 66a and a guide shaft hole 66b whose axial directions are on both sides, and is opened on the front side of the peripheral edge. Thus, the second engaging portion 86 is formed to be concave. Further, a substantially arcuate cam guide portion 87 is formed on the periphery of the lock piece 66, and one end of the cam guide portion 87 is opened at an open position 87a.
The other end is at the lock position 87b.

The cam 67 is formed in a plate shape having a predetermined thickness, and has a shaft hole 67a and a guide shaft hole 67b formed in both sides in the axial direction. A locking portion 88 is protrudingly provided. Further, the cam 67 has a link shaft hole 67c as a link connecting portion.

The lock piece 66 is provided with a lock main shaft hole 81.
And a locking main shaft 71 inserted through the shaft hole 66a, and a locking auxiliary shaft 7 inserted through the guide shaft hole 82 and the guide shaft hole 66b.
As a result, the supporting bracket 65 is pivotally supported by the supporting bracket 65 so as to be rotatable within a predetermined range around the main locking shaft 71 as a rotation axis. Also,
The cam 67 comprises a cam main shaft 73 inserted through the cam main shaft hole 83 and the shaft hole 67a, and a cam sub shaft 74 inserted through the guide shaft hole 84 and the guide shaft hole 67b.
Is rotatably supported by a support bracket 65 in a predetermined range around a rotation axis. Further, the lock main shaft 71 and the cam main shaft 73 are fitted with E-rings 77 at their respective ends, and are prevented from coming off. Also, the lock piece 66 and the cam 67
Are positioned in both directions by a cylindrical spacer 76 fitted to the main locking shaft 71 and the main cam shaft 73.

Further, the lock auxiliary shaft 72 and the cam auxiliary shaft 74 are urged by a spring 75 in a direction approaching each other. And these auxiliary shafts 72, 74
The locking portion 88 of the cam 67 is urged so as to slidably contact the cam guide portion 87 of the lock piece 66.

Further, on the plate 48 of the frame 30,
A link piece 91 as a link means is disposed so as to be able to move forward and backward in the front-rear direction. That is, the link piece 91 is formed in the elongated main body 92 arranged at the center of the frame 30 in the width direction.
An annular operation connection portion 93 at the front end of the main body 92,
A lock mechanism connection portion 94 is provided at the rear end, and a detection means connection portion 95 is provided at an intermediate portion near the front end. An annular operation ring 98 as a release operation unit is connected to the operation connection unit 93 via a joint 97 made of cloth or the like.
Further, the locking mechanism connecting portion 94 at the rear end is provided with a shaft hole 94a which is long in the both sides in the axial direction, and which is long in the vertical direction. The link piece 91 is connected to the lower portion of the cam 67 by passing through the link shaft hole 67c of the cam 67. Further, a detecting means connection portion
95 has a pair of locking pieces 95a on both sides. And
The locking piece 95a is formed as a locking portion that is substantially vertical on the front side and is substantially vertical on the rear side and can be locked to the operating portion 61b of the trigger 61.

As shown in FIG. 6, the locking piece 95a can be locked to the operating portion 61b of the trigger 61 which is not engaged with the first engagement receiving portion 21 and turned rearward. Formed at the location. Therefore, the locking piece 95a, that is, the link piece 91,
Irrespective of the position of the trigger 61, it is configured to be movable to the front side, while being movable backward only when the trigger 61 is rotated to the front side and the operating portion 61b is moved upward.

The cover 31 includes a lower cover 103 and an upper cover 104, as shown in FIG. 3 and the like. It is attached so that it covers. The first and second engaging portions 55 and 86 are provided on the upper surface of the cover 31.
And a pair of release openings 108 on both sides that respectively expose the release levers 44 on both sides.
Is provided. Further, an opening 109 for exposing the operation ring 98 is formed on the front surface of the cover 31, and a pair of arm openings 110 on both sides through which the arms 38 respectively pass are provided on both sides of the rear surface of the cover 31. Have been.

Next, the operation of attaching the child seat 1 to the seat 2 will be described.

First, the base body 12 separated from the seat body 11 is attached to the seat 2.

2 (a), the base body 12 is moved rearward substantially parallel to the seating surface 3 and the arm portions 38 on both sides are mounted. Align with the receiving part 6 and push it in the rear side. Then
As shown in FIG. 2B, the bars 8 of the mounting receiving portions 6 on both sides are formed.
Is guided by the slit 42 and engaged with the lock piece, and the base body 12 is engaged on the seating surface 3 by two engaging portions 40 on both sides. In this state, as shown in FIG.
The trigger 61 of 50 rotates rearward, and the locking piece 95 of the link piece 91
a is locked by the operating portion 61b, the lock piece 66 of the lock mechanism 53 is rotated backward, the second engaging portion 86 is opened upward, and the locking portion 88 of the cam 67 is locked by the lock piece 66. Slidably in contact with or facing the open position 87a of the cam guide portion 87.

Next, the sheet 11 is attached to the base 12.

Then, as shown in FIG. 2 (b), the seat 11 is attached to the base
The sheet body 11 is tilted forward from the state where the sheet body 11 is lifted upward, and as shown in FIG.
The first engagement receiving portion 21 formed on the front side of the hook member 50 is inserted into and hooked on the first engagement portion 55 of the hook mechanism 50 formed on the front side of the upper surface of the base body 12.

The first engagement receiving portion 21 is connected to the first engagement portion.
In the state engaged with the predetermined position A of 55, as shown in FIG.
The trigger 61 of the hook mechanism 50 rotates forward, the operating portion 61b is retracted upward, the locking of the locking piece 95a of the link piece 91 is released, and the link piece 91 becomes movable rearward, That is, the cam 67 becomes rotatable.

Further, from this state, the first engagement receiving portion 21
With the center axis as the center axis, the back portion 18 of the sheet body 11 is rotated so as to be pushed down rearward and downward. Then, as shown in FIG. 8 and FIG. 5, the second
Is engaged with the second engaging portion 86 of the lock piece 66 of the lock mechanism 53, and is further inserted into the slit 65d of the support fitting 65 while rotating the lock piece 66. You. When the lock piece 66 holding the second engagement receiving portion 22 rotates to a predetermined position about the lock main shaft 71 as a rotation axis, the biasing force of the spring 75 causes the cam main shaft 73 to rotate.
The cam 67 rotates about the rotation shaft, and the locking portion 88 of the cam 67 is locked by engaging with the lock position 87b of the cam guide portion 87 of the lock piece 66. The engagement receiving portion 22 is prevented from falling off, and the seat body 11 is fixed to the base body 12, as shown in FIG. 2C, and the operation of attaching the child seat 1 to the seat 2 is completed.

The child is supported by the child seat 1 mounted on the seat 2 so as to be wrapped from behind by the seat body 14, and the upper body is a shoulder harness, the abdomen is a block, and the child body 1 side. , And can be protected in a stable sitting state.

When removing the child seat 1 from the seat 2, first, the operation ring 98 exposed at the front end of the base body 12 is pulled forward. Then, the link piece 91 moves to the front side via the joint 97, and this link piece 91
The cam 67 connected to 91 rotates in the direction opposite to the direction at the time of engagement, and separates from the lock position 87b of the lock piece 66. Further, in this state, the lock piece is
66 also rotates in the opposite direction to the engagement, and is at least rotatable, so that the second engagement receiving portion 22 can be disengaged upward. Then, in a state where the second engagement receiving portion 22 is detached from the second engagement portion 86 of the lock piece 66, the first engagement receiving portion 21 is moved to the first engagement position while rotating the sheet body 11. It can be removed from the joint 55. Further, from this state, by operating the release lever 44 on the upper surface of the base body 32, the engaging portions 40 on both sides can be removed from the bar 8, and the base body 12 can be removed from the seat 2.

On the other hand, when attaching the sheet body 11 to the base body 12, the first engagement receiving portion 21 of the sheet body 11 is attached to the first engagement portion 55 of the hook mechanism 50 of the base body 12. 1 and 2 (d), the worker attempts to engage the second engagement receiving portion 22 with the second engagement portion 86, as shown in FIGS. 1 and 2 (d). When the sheet body 11 is pressed down and the second engagement receiving portion 22 is inserted into the second engagement portion 86, the lock piece 66 is rotated, but the first engagement portion 55 is attached to the first engagement portion 55. Since the mating portion 21 is not engaged, the state in which the operating portion 61b of the trigger 61 locks the locking piece 95a of the link piece 91 is maintained,
The link piece 91 cannot move backward, that is, the cam 67 does not rotate, and the locking portion 88 of the cam 67
Does not engage b. Therefore, the operator can easily confirm that the first engagement receiving portion 21 is not engaged with the first engagement portion 55, and easily confirm whether the sheet body 11 is correctly attached to the base body 12. it can.

As described above, in the present embodiment, as shown in FIG. 1, when the seat body 14 is attached to the base body 12 of the Isofix type, the first engagement portion 55 is actually attached to the first engagement portion 55. Even though the engagement receiving portion 21 is not securely engaged, the user engages the second engagement portion 86 with the intention of engaging the first engagement portion 55, so-called improper fixation. Body with base body
The seat body 14 can be easily prevented from being attached to the base 12, the seat body 11 can be prevented from being attached to the base body 12 in an improperly fixed state, and the work of attaching the child seat 1 to the seat 2 can be easily confirmed. .

That is, the child seat 1 is
Since the base body 12 is detachably attached to the base body 12 and the sheet body 11 attached to the base body 12, the base body 12 is not hindered by the seat portion.
Engagement of the twelve seats 2 can be easily confirmed, and secure engagement can be easily realized.

The operation of attaching the sheet body 11 to the base body 12 includes the first engaging section 21 engaging the first engaging section 21 and the second engaging section 22 of the sheet section 11, respectively. Part 55
In the configuration in which the second engaging portion 86 is provided on the base body 12, a trigger 61 serving as detecting means for detecting the engagement of the first engaging portion 55 is provided, and the trigger 61 is used as a link serving as link means. Since a configuration is provided in which the locking of the second engaging portion 86 is controlled in conjunction with the cam 67 as the engagement control means of the second engaging portion 86 via the piece 91, the first engaging If the first engagement receiving portion 21 is not correctly engaged with the portion 55, the second engagement portion 86
The second engagement receiving portion 22 cannot be engaged and locked, and the seat body 11 is not attached to the base body 12 in an improperly fixed state. Confirmation can be made easily.

The trigger 61 serving as the detecting means is provided on the side of the base body 12 on which the first and second engaging portions 55 and 86 are provided, thereby simplifying the structure and reducing the manufacturing cost. it can.

Further, when the sheet member 11 is attached to the base member 12, one end of the sheet member 11 is engaged with the base member 12, and then the engaged part is tilted with the fulcrum as a fulcrum. Since the pressing operation is performed on the body 12 side, the mounting operation is easy and the structure can be simplified.

Further, since the mounting operation can be performed by separating the base body 12 and the seat body 11 from each other, the workability can be improved in a vehicle room where a comfortable working posture cannot always be taken.

In the above embodiment, the sheet 11
On the side, a first engagement receiving portion 21 and a second engagement receiving portion 22 are provided,
Although the first and second engaging portions 55 and 86 are provided on the base body 12 side to constitute the engaging device, the first and second engaging portions,
The arrangement of the first and second engagement receiving portions is not limited to the above embodiment. For example, the first engagement receiving portion 21 and the second engagement receiving portion 22 are provided on the base body 12 side. The first and second engagement portions 55 and 86 may be provided on the sheet body 11 side.

[0054]

According to the child seat of the first aspect, after the engaging portion is engaged with the mounting receiving portion to attach the base body to the seat, the seat body is attached to the base body by the engaging device, and the child seat is provided. Can be attached to the seat. Further, since the base body is attached to the seat independently of the seat body, it is possible to easily confirm the work of attaching to the seat. Further, the engagement device engages the sheet body and the base body at a plurality of positions, and in at least one position, only when the sheet body and the base body are normally engaged at another position. Since the engagement and the lock are performed, the engagement at the position 1 is also confirmed in a state where the lock is performed at the other position, so that it is possible to easily confirm the attachment work to the seat.

According to the child seat of the second aspect, in addition to the effect of the first aspect, the first engagement receiving portion is provided with the first engagement receiving portion.
By engaging the second engagement receiving portion with the second engagement portion and locking the second engagement receiving portion, the sheet body can be easily attached to the base body.

According to the child seat of the third aspect, in addition to the effect of the second aspect, in the state where the first engagement receiving portion is engaged with the first engagement portion at a predetermined position, the second engagement portion is provided. A configuration in which the joining portion engages with the second engagement receiving portion to be lockable can be easily realized.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a child seat according to an embodiment of the present invention, taken along a line II in FIG. 3 in a state where a seat body is not properly attached to a base body.

FIG. 2 is an explanatory diagram of an attaching operation showing the child seat according to the first embodiment. (A) Attaching the base body to the seat (b) Attaching the seat body to the base body (c) A state where the seat body is properly attached to the base body (d) A state where the seat body is properly attached to the base body State that did not exist

FIG. 3 is a perspective view showing a base body of the child seat according to the first embodiment.

FIG. 4 is a perspective view showing the base body from which the cover body of the child seat has been removed, without the seat body being attached.

FIG. 5 is a perspective view showing a state where the seat body is attached to the base body with the cover body of the child seat removed therefrom;

FIG. 6 is a cross-sectional view taken along a line II in FIG. 3 showing an operation of attaching the seat body to the base body of the child seat.

FIG. 7 is a cross-sectional view showing the operation of attaching the sheet member to the base member of the child seat in the state following FIG. 6;

FIG. 8 is a sectional view showing a state where the seat body is attached to the base body of the child seat according to the embodiment.

FIG. 9 is an exploded perspective view of the child seat lock mechanism 53 of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Child seat 2 Seat 3 Seat surface 4 Seat back 6 Attachment receiving part 11 Seat body 12 Base body 14 Seat body 21 First engagement receiving part 22 Second engagement receiving part 32 Base body 40 Engagement part 55 First Engaging part 61 Trigger as detecting means 67 Cam as locking means 86 Second engaging part 91 Link piece as link means A Predetermined position

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Komei Yoshida 3-35-13 Yayoi-cho, Nakano-ku, Tokyo Inside Carmate Development Center Co., Ltd. (72) Inventor Yoshinobu Sano 218 Aoshima-cho, Fuji-shi, Shizuoka Japan Nippon Plastics F term in the company (reference) 3B087 CE07 DA10

Claims (3)

[Claims] 1. A child seat attached to a seat having a seat surface, a seat back standing upright from a rear portion of the seat surface, and an attachment receiving portion provided near a connecting portion between the seat surface and the seat back. A seat body having a seat body that can be seated, a base body having an engaging portion that is lockably engaged with the attachment receiving portion and a base body to which the seat body is attached; and a seat body. An engagement device attached to the base body, wherein the engagement device engages the sheet body and the base body at a plurality of positions, and normally engages at another position in at least one position. A child seat wherein the seat body and the base body are engaged and locked only in a combined state. A first engagement receiving portion provided on one of the sheet member and the base member; and an engagement device provided on one of the sheet member and the base member. A second engagement receiving portion disposed apart from the first engagement portion, and a first engagement portion provided on the other of the sheet body and the base body and engaged with the first engagement receiving portion. A second engagement portion that lockably engages with the second engagement receiving portion, wherein the first engagement receiving portion is engaged with the first engagement portion at a predetermined position. The child seat according to claim 1, wherein the second engaging portion is lockable by engaging the second engaging receiving portion. 3. An engagement device, comprising: a detection unit configured to detect a state in which the first engagement receiving portion is engaged with the first engagement portion at a predetermined position; The child seat according to claim 2, further comprising: a lock unit configured to lock the engagement unit; and a link unit configured to link the detection unit and the lock unit.