JP2001180346A - Child seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily install a child seat on a seat of a vehicle, and to simplify an installing structure to the seat. SOLUTION: A seat 2 of an automobile has a pair of both side installation receiving parts 6 having respectively bars 8. The child seat 1 has a base body 11 and a seat body 12. The base body 11 has a pair of both side fitting parts 44, and these fitting parts 44 are fitted to the bars 8 to be installed on the seat 2. The base body 11 has a first engaging part 55 and a second engaging part 57 on an upper surface. The seat body 12 is turned with the first engagement receiving part 21 as a fulcrum after hooking the first engagement receiving part 21 arranged on the front side on the first engaging part 55, and a second engagement receiving part 22 is engaged with the second engaging part 57 to be fixed to the base body 11. The seat body 12 is put in a state of being pressed to the seat 2 side to be stabilized without loosening.

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]

However, in the configuration described in Japanese Patent Application Laid-Open No. Hei 8-207630, since the support member attached to the lower portion of the seat body is attached to the locking unit of the vehicle by a total of four connectors, There are problems that the mounting operation becomes complicated, the structure becomes complicated, and the manufacturing cost increases.

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 that can be seated, and a base body including an engaging portion that is lockably engaged with the base main body and the mounting receiving portion. And an engagement device for attaching the sheet body to a base body, the engagement device comprising: a first engagement receiving portion provided on one of the sheet body and the base body; A second engagement receiving portion provided on one of the main bodies and spaced apart behind the first engagement receiving portion, and a second engagement receiving portion provided on the other of the seat body and the base body; Rotating the receiving part And a second engaging portion provided on the other of the seat body and the base body and engaged with the second engagement receiving portion so as to be lockable. .

[0008] In this configuration, the child seat first engages and locks the engaging portion with the mounting receiving portion of the seat, disposes the base body on the seat surface of the seat, and then performs the first engagement. Engaging the receiving portion with the first engaging portion, rotating the seat body about the engaging portion as a fulcrum, and engaging and locking the second engaging receiving portion with the second engaging portion; Thereby, it can be easily attached to the seat. Since the base body is attached to the seat independently of the seat body, it is easy to check the work of attaching to the seat, and no special mechanism for checking is required,
The structure is simplified and the manufacturing cost is reduced.

According to a second aspect of the present invention, there is provided the child seat according to the first aspect, wherein the engaging portion includes the first portion.
And the second engagement receiving portion is provided so as to be adjustable in position.

[0010] In this configuration, the child seat can be mounted at an appropriate position on seats of various sizes, and versatility is improved.

According to a third aspect of the present invention, in the child seat according to the first or second aspect, the base body presses the seat surface and the seat body presses the seat back in a state of being attached to the seat.

[0012] In this configuration, the child seat is stably mounted without rattling in a state of being elastically sandwiched between the seat surface of the seat and the seat back.
Therefore, it is possible to reduce the number of connection points between the child seat and the seat, simplify the configuration, and reduce the manufacturing cost. Further, in the attaching operation, in a state where the base body is attached to the seat in advance, the first engaging portion is engaged with the first engaging receiving portion, and the seat body is rotated around the engaging portion as a fulcrum, By engaging the second engagement portion with the second engagement receiving portion, it is easily realized against the elasticity of the seat.

[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.

2 to 4, reference numeral 1 denotes a child seat. The child seat 1 is attached to an automobile seat (car seat) 2, and as shown in FIG.
In the use state, the child K sits on the child seat 1.

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 of the mounting receiving portions 6 includes a concave portion 7 opened forward and a bar (isobar) 8 disposed inside the concave portion 7. Each bar 8 is made of a steel material and is formed in a columnar shape or the like, and is disposed with both sides in the longitudinal direction, and is formed integrally with a lower portion of a frame (not shown) embedded in the seat back 4 or formed separately. It is connected by welding on the top. That is, each bar 8
Is disposed so as to extend between the side walls 7a, 7a of the recessed portion 7, and is exposed forward from a substantially rectangular opening 7b of the recessed portion 7.

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. Furthermore, this seat body 14
Has a shell 15 integrally formed of, for example, a hard synthetic resin, and a soft cushion 16 such as a urethane pad arranged at least on the seating side of the shell 15. The shell 15 has a substantially horizontal bottom surface portion 17 in which a steel material body frame or the like is embedded as necessary, and a rear portion 18 inclined upward and rearward.

Further, a shell is provided below the seat body 14.
The first and second locking metal members 19 and 20 are provided to project from the bottom surface portion 17 of the pair 15 and form a front and rear pair. These locking fittings 19 and 20 are steel materials which are located at the center of both sides of the seat body 14 at predetermined intervals in the front and rear direction, for example, are bent in a substantially U-shape. To the shell 15 and the like. And these locking fittings 1
Portions extending substantially horizontally in both side directions of the parts 9 and 20 are a first engagement receiving part 21 and a second engagement receiving part 22 which are supported parts.

The seat body 14 is provided with a shoulder harness (strap) 24 for supporting the upper body of the child K, a block 25 for supporting the abdomen, and the like.

On the other hand, the base body 12 includes a base body 32 in which a steel frame (not shown) is covered with a cover 31 made of resin such as polypropylene. And the base body
32, a pair of arms 33 on both sides connected to the frame is projected from the rear portion 32a toward the rear side.
A clamp 35 is attached to each of the 33 so that the position can be adjusted by an adjuster mechanism. For example, each arm 33
The clamp 35 is made of steel and has a substantially rectangular cylindrical shape, and each clamp 35 is slidably fitted inside each arm 33. Also,
Near the tip of each arm 33, adjuster knob
37 are provided. And each adjuster knob 37,
A pin 37a and a knob 37b connected to the pin 37a are provided.
Is biased in a direction to protrude inward. On the other hand, each clamp 35 includes a clamp body 41 having a substantially rectangular cylindrical shape, and a plurality of adjuster holes 42 are formed at predetermined intervals along the longitudinal direction of the arm 33 on the base end side of the clamp body 41. ing. Therefore, as shown in FIG. 2, in a state where the adjuster knob 37 is pulled out in the direction of arrow A against the urging force of the return spring, the clamp 35 is moved in the direction of arrow B to adjust the amount of pulling out. When the pull in the direction of arrow A is stopped when the pin 37a of the knob 37 matches the desired adjuster hole 42, the adjuster knob is pressed by the biasing force of the return spring.
The pin 37a of the 37 is returned so as to be inserted into the adjuster hole 42, and can be fixed with a predetermined pulling amount.

Further, at the distal end of each clamp 35, there is provided an engaging portion 44 which is a lock mechanism for detachably engaging (locking) the bar 8 of the mounting receiving portion 6. Each of the engaging portions 44 is provided with a lock piece 46 rotatably supported by a rotation support shaft 45, and the lock piece 46 has a first position which is provided at a predetermined position, that is, an angle. A projection 46a and a second projection 46b are formed. Also, this lock piece
46 is a slit which is urged by a link 47 and opens in a substantially V-shape toward the distal end of the clamp body 41, that is, toward the rear.
48, the position where the first protrusion 46a protrudes, and the position of the second protrusion 46a.
The position where b protrudes is determined. The link 47 is connected to lock means (not shown), and each lock means is provided with a release lever 49 operable from above the base body 32. Then, when a force is applied to the lock piece 46, the lock means rotates from the open position shown in FIG. 5A in the direction of arrow C to the lock position shown in FIG. 5B. And the lock piece 46 is fixed at this lock position. Then, while operating the release lever 49, release the lock,
Rotation from the lock position to the open position that rotates in the direction of arrow D is allowed.

Further, the base body 32 of the base body 12 includes:
A hook mechanism 51 and a lock mechanism 52, which are located at the center portions of both sides of the base body 32 and protrude upward and are a pair of support portions, are provided. The hook mechanism 51 is formed of a metal fitting fixed to a frame of the base body 32. The metal fitting has a pair of hook pieces 54 formed on both sides in a vertical shape. Each hook 54 has a coaxial circular hole 54a extending axially in both sides, and a communication portion 54b communicating rearward from each circular hole 54a. Joint
55 are formed.

The lock mechanism 52 has a function similar to that of the engaging portion 44 of the base body 12, is connected to a link and a lock means (not shown), and is a lock piece axially supported on both sides. A second fitting portion 57 is provided, and a support fitting 59 is provided on both sides of the second engaging portion 57 and provided with a slit 58 that opens upward.

Further, at the front end of the base body 32, a release knob 60 which is a release lever connected to the locking means is provided. Then, by operating the release knob 60 by pulling or the like, the fixing of the second engagement portion 57 is released.

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.

The mounting operation of the base body 12 is performed by first adjusting the adjusting mechanism in accordance with the length of the seat surface 3 of the seat 2 in the front-rear direction, the inclination angle of the seat back 4, the position of the mounting receiving portion 6, and the like. In use, the protrusion length of the clamp 35, that is, the position of the engaging portion 44 with respect to the first and second engaging portions 55 and 57 is adjusted. In this state, as shown in FIGS. 4 and 5 (a), the base body 12 is placed on the seating surface 3, and the clamps 35 on both sides are respectively aligned with the mounting receiving portions 6 and pushed into the rear side. Then, as shown in FIGS. 5A and 5B, the bars 8 of the mounting receiving portions 6 on both sides are guided by the substantially V-shaped slits 48, and push the first protruding pieces 46a to lock. The piece 46 is rotated in the direction of arrow C. Then, as shown in FIG.
Is locked to a predetermined position, the lock piece 46 is fixed, and the first and second protrusions 46a and 46b of the lock piece 46 are fixed.
The bar 8 is held in the recess between the two. In this state, FIG.
As shown in (1), the base body 12 is engaged on the seating surface 3 by two engaging portions 44 on both sides.

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

Then, as shown in FIG. 1 (a), the mounting operation of the sheet body 11 starts from the state where the sheet body 11 is lifted above the base body 12 and tilted forward as shown in FIG. As shown in b), the first engagement receiving portion 21 formed on the front side of the bottom portion 17 of the sheet body 11 is hooked on the first engagement portion 55 formed on the front side of the upper surface of the base body 12. From this state, the seat body 11 is rotated about the first engagement receiving portion 21 as a central axis in the direction of arrow E, that is, so as to push the back portion 18 of the sheet body 11 downward and rearward. Then, first, the back surface portion 18 contacts the seat back 4, and then, as shown in FIG. 1C, the second engagement receiving portion 22 formed on the rear side of the bottom surface portion 17 of the sheet body 11 is The seat body 11 is fixed to the base body 12 by being engaged with the second engagement portion 57 formed on the rear side of the upper surface of the base body 12 and fixed by the lock mechanism 52, and is moved to the seat 2 of the child seat 1. Is completed. The engagement of the second engagement receiving portion 22 with the second engagement portion 57 is confirmed by a latch sound.

Further, by appropriately adjusting the protruding length of the clamp 35, the base body 12 is placed on the seat surface 3 with the child seat 1 attached to the seat 2, and
The back portion 18 of the seat body 14 of the seat body 11 is attached to the seat back 4.
The back portion 18 presses the cushion of the seat back 4 and sinks slightly.
That is, in this state, the child seat 1 is stably supported without rattling while being elastically sandwiched between the seat surface 3 of the seat 2 and the seat back 4.

On the other hand, when removing the child seat 1 from the seat 2, first, the release knob at the front end of the base body 12
By operating the first engagement receiving portion 21, the second engagement receiving portion 22 is released from the second engagement portion 57 by operating the first engagement receiving portion 21.
Is released from the first engagement portion 55, and the sheet body 11 is
Remove from Next, by operating the release lever 49 on the upper surface of the base body 32, the engaging portions 44 of both clamps 35 are removed from the bar 8, and the base body 12 is removed.

As shown in FIG. 2, the child K is supported by the child seat 1 mounted on the seat 2 so as to be wrapped later by the seat body 14, and the upper body is formed by the shoulder harness 24. Thus, the abdomen is supported on the seat body 14 side by the block 25, and the seat is stably seated.

Here, if there is a sudden deceleration due to a collision or the like, as shown in FIG. 6 (a), the child K is protected in a stable sitting posture by the cushion of the seat body 11 of the child seat 1. Is done. In addition, the entire child seat 1 is supported by the bar 8 to which the engaging portion 44 is engaged,
Rotate in the direction of arrow F so as to sink into the seating surface 3 of the seat 2,
Reduce the impact.

Next, in the state of swing back immediately after the collision,
As shown in FIG. 6B, the child K is protected in a stable sitting posture by the cushion of the seat body 11 of the child seat 1. In this state, the back of the seat body 14 supports the head of the child K. Further, in this state, the entire child seat 1 is pivoted in the direction of arrow G so as to sink into the seat back 4 of the seat 2 with the bar 8 to which the engaging portion 44 is engaged as a fulcrum, thereby reducing the impact.

As described above, according to the present embodiment, the child seat 1 that can be easily attached to the seat 2 can be easily and securely attached by using the attachment receiving portion 6 provided on the seat 2. At the same time, the configuration can be simplified, and the manufacturing cost can be reduced and the weight can be reduced.

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. For example, after the base body 12 is engaged, the engagement of the base body 12 can be confirmed by swinging the base body 12 itself, and the mass of the seat portion does not hinder the engagement work. And since it is a structure which can suppress a human error in this way, a special or complicated mechanism such as a so-called interlock mechanism is not required, and the configuration can be simplified.

The seat 11 is attached to the base 12 by engaging one end of the sheet 11 with the base 12, tilting the engaged portion as a fulcrum, and using the other end as the base. 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 child seat 1 is pressed against the seat 2 in a state where the seat body 11 is mounted on the base body 12, the child seat 1 can be stably mounted at a small number of fixing points without rattling. . That is, the number of the fixing portions, which are the fixing points, may be two, and the number of the fixing points can be reduced as compared with the configuration requiring four points. When the seat body 11 is attached to the base body 12, it is necessary to press the seat 2 against the elasticity of the cushion.
Since the operation of tilting the engaged portion as a fulcrum and pushing it downward is easy, a force can be easily applied, and workability can be improved.

Further, the base body 12 is provided with the clamp 35, that is, the engaging portion 44 so that the position thereof can be adjusted.
Can be attached to the seats of vehicles of various sizes, the versatility can be improved, and the manufacturing cost can be reduced.

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

The child seat 1 is attached to the seat back 4 of the seat 2 such that the rear portion 18 is in close contact with the seat back 4. For example, when the child seat 1 is attached to the rear seat, the front seat 2a and the seat back 4 are connected to each other. The distance L between them can be easily and sufficiently secured. So, child seat 1
Can be easily arranged at a position far enough not to be affected by the swinging motion of the seat back 4 of the front seat 2a.

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,
The first and second engagement portions 55 and 57 are provided on the base body 12 side to form an engagement device.
Of the sheet body 11 is provided.
On the side, first and second engagement portions 55 and 57 can be provided.

[0043]

According to the child seat of the first aspect, the child seat first engages and locks the engaging portion with the mounting receiving portion of the seat, and arranges the base body on the seat surface of the seat. Engaging the first engagement receiving portion with the first engagement portion;
The seat body is rotated about the engagement portion as a fulcrum, and the second
By engaging the engagement receiving portion with the second engagement portion and locking it, it can be easily attached to the seat. 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, no special mechanism for confirmation is required, the structure is simplified, and the manufacturing cost can be reduced.

According to the child seat of the second aspect, in addition to the effect of the first aspect, in addition to the effects of the first and second aspects, the first and second engaging portions are provided.
Since the position of the child seat can be adjusted with respect to the engagement receiving portion, the child seat can be mounted at an appropriate position on seats of various sizes, and versatility can be improved.

According to the child seat of the third aspect, in addition to the effects of the first or second aspect, the base body presses the seat surface and the seat body presses the seat back when the child seat is attached to the seat. In this state, the child seat can be stably mounted without backlash in a state of being elastically sandwiched between the seat surface of the seat and the seat back. Therefore, the number of connection points between the child seat and the seat can be reduced, the configuration can be simplified, and the manufacturing cost can be reduced. Further, in the attaching operation, in a state where the base body is attached to the seat in advance, the first engaging portion is engaged with the first engaging receiving portion, and the seat body is rotated around the engaging portion as a fulcrum, By engaging the second engagement portion with the second engagement receiving portion, it can be easily realized against the elasticity of the seat.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an attaching operation for attaching a seat body to a base body, showing an embodiment of a child seat of the present invention.

FIG. 2 is a side view of the child seat, which is attached to a seat, showing the same.

FIG. 3 is a perspective view of the disassembled state in which the base body showing the child seat is attached to the seat and the seat body is removed.

FIG. 4 is a perspective view of a base body and a part of the seat showing the child seat according to the embodiment.

FIG. 5 is an explanatory view showing the child seat according to the embodiment. (A) is a sectional view of a state before the base body is attached to the seat. (B) is a sectional view of a state where the base body is attached to the seat.

FIG. 6 is an explanatory view showing the child seat according to the embodiment. (A) is a side view in which a forward force is applied to the child seat attached to the seat. (B) is a side view in which a rearward force is applied to the child seat attached to the seat.

[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 main body 21 First engagement receiving part 22 Second engagement receiving part 44 Engagement part 55 First engagement part 57 Second engagement part

Continued on the front page (72) Inventor Komei Yoshida 3-35-13 Yayoi-cho, Nakano-ku, Tokyo Carmate Development Center Co., Ltd. (72) Inventor Megumi Morii 218 Aoshima-cho, Fuji-shi, Shizuoka Japan Nippon Plastic Co. 72) Inventor Yoshinobu Sano 218 Aoshima-cho, Fuji-shi, Shizuoka Prefecture F-term in Japan Plastics Co., Ltd. (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 base body and the attachment receiving portion, and an engagement that attaches the seat body to the base body. A first engagement receiving portion provided on one of the sheet main body and the base main body, and a first engagement receiving portion provided on one of the sheet main body and the base main body; A second engagement receiving portion spaced apart behind the receiving portion, and a second engagement receiving portion provided on the other of the seat body and the base body and rotatably engaging the first engagement receiving portion. 1, the seat body and the base Provided on the other body, the child seat, characterized in that a second engaging portion engaged to be locked the second engagement receiving portion. 2. The child seat according to claim 1, wherein the engaging portion is provided so as to be adjustable in position with respect to the first and second engagement receiving portions. 3. The child seat according to claim 1, wherein the base body presses the seat surface and the seat body presses the seat back in a state where the child seat is attached to the seat.