JP3011857B2 - Built-in child seat structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a built-in type child seat structure in which a child seat cushion can be stored together with a child seat back in a storage recess of a seat body under a flip-up operation around a hinge pin.

[0002]

2. Description of the Related Art A child seat cushion (child cushion) and a child seat back (child back) are formed to have a combination of a child's body shape and posture, etc. Child seats that ensure the safety of vehicles are widely provided, for example, in automobiles and the like.

[0003] As such a child seat, for example, there is known a dual-purpose structure in which a child cushion can be used as an armrest of a seated person on a seat body. Child seat of such compatible type involves child back under the flip-up operation of the child cushion around the hinge pin, which can be stored in the storage recess of the seat body is configured in a so-called built-in.

[0004]

By the way, even in such a child seat, a seat belt is worn similarly to a normal automobile seat, and a seated person (infant) is restrained and held by the seat belt. In a well-known armrest / child seat, a seat belt is usually configured as a so-called three-point type for an adult.

However, a three-point seat belt is
Normally, since the configuration is intended for a 6-year-old child or older who has sufficient self-holding power, 3 to 5 having low self-holding power are required.
For three-year-olds, holding power tends to be weaker with the three-point system,
The stability of the sitting posture cannot always be kept high. Therefore, in the known built-in type child seat,
There is also a possibility that a stable sitting posture of a 3 to 5 year old child cannot be always maintained.

[0006] Further, since the child back in the known configuration is usually connected only to the child cushion via a hinge, its use position is set near the rear of the storage recess of the seat body. There are many. Therefore, when an infant about three years old is seated, the body is likely to sink into the storage recess, which may make it impossible to stabilize the sitting posture.

Further, a seat belt used in a child seat is generally connected to a seat body in many cases. However, in an emergency such as a sudden stop or collision, an excessive load acts on the connection point of the seat belt, that is, the frame of the seat body, and so on.
There is a possibility that the seat body may be deformed, and the seat body may need to be greatly reinforced.

[0008] It is an object of the present invention to provide a built-in type child seat structure that ensures stable seating from an infant about three years old.

[0009]

According to one embodiment of the present invention, a vehicle behind a seat body is provided.
Terminals of a pair of left and right shoulder belts from a retractor fixed to the body member extend to the side of the seating surface of the child seat through through holes formed in the child seat back.
Further, it is connected and fixed to a predetermined vehicle body member .
The combination of a pair of left and right shoulder belts and a buckle into which the tongue of the shoulder belt can be inserted forms a five-point child seat belt.

[0010]

According to the present invention, since the child seat belt is a five-point type, a stable sitting posture can be easily ensured even for an infant about three years old.

[0011]

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

As shown in FIGS. 1 and 2, in the built-in type child seat structure 10 according to the present invention, the child seat 12 has a combination of a child seat cushion (child cushion) 14 and a child seat back (child back) 16. Seat belt 18 that restrains the occupant (infant)
It is provided for the child seat.

In such a child seat 12, for example, a child cushion 14 is connected to a seat back 24 of a rear seat 22 as a seat body via a hinge 20, and the child cushion 14 is centered on the hinge from the use position shown in FIG. Can be stored in the storage recess 24a of the seat back together with the child back 16 (see FIG. 3).

Incidentally, such a child seat 12 is
Normally, as shown in FIG.
For example, the child cushion 14 can also be used as an armrest for a seated person on the rear seat 22 in the use position shown in FIG.

[0015] As shown in FIG.
14 is formed to have, for example, a pair of left and right support pads 26 that can rotate in the vertical direction. Such a support pad 26 is connected to the child cushion 14 so as to be movable between a lateral position shown by a solid line in FIG. 2 and an upper position shown by a dashed line with respect to the child cushion 14 under rotation. , When used as a child seat, and at an upper position when used as an armrest.

In such a configuration, good stability of the buttocks of the infant when used as a child seat can be obtained, and an appropriate height as an armrest can be secured in the child cushion 14 (FIGS. 1 and 2). reference).

Here, as can be seen from FIGS. 1 and 2, in the built-in type child seat structure 10 of the present invention, the seat belt 18 is formed by the left and right shoulder belts 18-1 and 18-.
2 and a buckle 18-3 in which the tongues 18-1a and 18-2a of the shoulder belt are inserted.

The shoulder belts 18-1 and 18-2 are accommodated in the retractor 28 by, for example, double winding, and can be pulled out against the biasing force of the retractor. Note that the configuration of the retractor 28 is publicly known, and the configuration itself is not the purpose of the present invention, and thus will not be described in detail here.

As shown in FIG. 1, in the present invention,
The retractor 28 is connected to the rear seat 22 such as the lower part of the rear sherif.
Terminals of the shoulder belts 18-1 and 18-2 fixed to the rear vehicle body member 30 and pulled out from the retractor are provided in the upper portions of the left half and the right half of the child back 16, respectively. The child seat 12 extends through the seat surface 32 through the seat surface 32. Shoulder belt extended to the side of the seating surface
The terminals of 18-1 and 18-2 are, for example, similar to the terminals of the seat belt (not shown) of the rear seat 22, and are connected to the floor 34 of the automobile.
And the like by bolting to the vehicle body member .

As shown in FIGS. 1 and 2, the tongues 18-1a and 18-2a are inserted through the shoulder belts 18-1 and 18-2, respectively, and the buckle 18 into which the tongues can be inserted is provided. -3 is
The present invention is configured to be provided on the child cushion 14 and to restrain the infant to the child seat 12 under the insertion of each tongue into the buckle.

As can be clearly seen from FIG. 4 in addition to FIG. 1, the buckle 18-3 is formed as an integral two-part system in which the tongues 18-1a and 18-2a can be individually attached and detached. I have. Note that the configuration is such that the tongues 18-1a and 18-2a can be detachably connected to one buckle 18-3, so that the tongue and the buckle are not limited to the illustrated shapes.

In such a five-point seat belt 18, lateral displacement of the body is reliably prevented by the left and right shoulder belts 18-1 and 18-2. That is, as shown in FIG. 1, if the five-point type seat belt 18 is worn for a child seat, unlike the three-point type, the displacement of the body in the left-right direction can be reliably prevented. A stable sitting posture can be easily ensured even for an infant of about 3 years old who has a weak holding force.

Since the retractor 28 of the shoulder belts 18-1 and 18-2 is fixed to the vehicle body member 30 such as a rear sherif, the load acting on the retractor via the shoulder belt is
It is dispersed and escaped in the body member. That is, in this configuration, the resistance to the excessive load can be sufficiently maintained between the retractor 28 and the vehicle body member 30, so that the posture collapse can be effectively prevented.

In the present invention, the left and right shoulder belts 18-1 and 18-2 are provided through the through holes 32 of the child back 16.
Is extended to the side of the seating surface of the child seat 12, so that application of a load from the shoulder belt to the child back is sufficiently suppressed. Therefore, even when an excessive load acts in an emergency or the like, deformation of the child back 16 is reliably prevented.

The five-point seat belt 18 is not limited to infants of about three years of age, and can sufficiently accommodate infants and children of six years of age and over. Is definitely expanded.

Here, in the embodiment, the left and right shoulder belts 18-1 and 18-2 are housed under double winding.
Although the retractor 28 is embodied, the present invention is not limited to this, and the left and right shoulder belts may be respectively housed in the left and right retractors so that they can be pulled out.

However, if the left and right shoulder belts 18-1 and 18-2 are stored in the common retractor 28 as in the embodiment, the number of parts can be reduced, and workability at the time of mounting the retractor is improved. Since the structure is not complicated, the structure can be simplified and the workability can be easily improved.

By the way, such a child seat 12
If the body is used in the rear position of the child back 16, the body sinks into the storage recess 24a, and especially in a child of about three years, the sitting posture in the front-rear direction is likely to collapse, and the stability of the sitting posture is stable. May be reduced. Therefore, as can be seen from FIG. 5 in addition to FIG. 1, in the present invention, the child back 16 can be moved in the front-rear direction with respect to the seat back 24 of the rear seat through a telescopic link mechanism 36. It is connected and supported, and is configured to be able to be pulled out forward as needed at the time of use or the like.

As shown in FIGS. 5 and 6, as the link mechanism 36, for example, a so-called X link in which two link arms 36a and 36b are assembled into a substantially X shape can be used. Two sets are provided apart from each other on the left and right sides of the back 16. One ends of the link arms 36a, 36b are connected to the brackets 40, 41 of the frame 38 of the seat back 24, for example.
The X-link (link mechanism) 36 is formed to be extendable and retractable with the rear end 36R as a base end by connecting the intersections at the intermediate portion.

The link arms 36 of the left and right X links 36
The intersection of a and 36b is connected and supported at each end of a support rod 44 described later.

Here, when the X link 36 expands and contracts with the rear end 36R as a base end, the position of the intersection with each link arm, that is, the position of the support rod 44, is changed according to the change in the angle between the link arms 36a and 36b. The position moves. Therefore, FIG.
As shown in FIG. 6, in such a configuration, the insertion holes 46, 4 of the link arms 36a, 36b through which the support rods 44 are inserted.
7 are formed as elongated holes extending along the respective link arms. The insertion holes 46 and 47 are connected to the link arms 36a,
The support rod (intersection point) 44 is formed over the moving range of the support rod (intersection point) 44 with respect to 36b.

The free end (front end) 36F of the X link 36 with respect to the base end 36R is connected to the child back 16, for example,
The child back frame 50 is pivotally attached to brackets 52 and 53, respectively. When the X-link 36 expands and contracts, the distance between the free ends of the link arms 36a and 36b fluctuates, so that the insertion holes 52a and 53a of the brackets 52 and 53 extend in the moving direction of the free ends of the link arms. Are formed as elongated holes.

In such a configuration, the insertion holes 46, 4
As the support rod 44 moves inside the bracket 7 and the free end moves along the bracket insertion holes 52a and 53a, the deviation of the rotation locus between the link arms 36a and 36b is guaranteed.
Smooth expansion and contraction of the X link 36 starting from the rear end 36R can be sufficiently ensured.

The support rod 44 is formed to a length that can be installed between the left and right X-links 36, and has a bushing as shown in FIG.
Through the continuous insertion of the terminal into the insertion holes 46, 47 of the link arms via 56, the left and right link arms 36a,
36b are connected and supported so as to be rotatable with each other and movably along the insertion hole.

5 and 6, the end of the support rod 44 extended from the X-link 36 is
Bracket 58 juxtaposed to X-link as guide pin
The guide groove 60 is loosely inserted together with the bush 56. As shown in FIG. 5, the bracket 58 is fixed to the seat back frame 38, and the guide groove 60 is formed to extend in the direction of expansion and contraction of the X link.

Further, as shown in FIG. 6, in the present invention, for example, a lock plate 62 bent and formed in a substantially U-shape comprises a pair of side walls 62a having an X link 36 and a bracket.
The base 62b is located at the rear of the X-link while being interposed between the joints 58. Reference numerals 64, 65
X link 36 on each side of the lock plate side wall 62a,
9 shows pipe-shaped spacers for keeping the distance from the bracket 58, respectively.

The lock plate 62 has, for example, a through hole 66 through which a terminal (guide pin) of the support rod 44 can be loosely inserted.
62a, and is connected to be able to move back and forth together with the support rod with the extension and retraction of the X-link 36.

As can be seen clearly from FIG. 7 in addition to FIG. 6, arcuate guide holes 68 centered on the support rods 44 are formed in the side walls 62a of the lock plate, respectively, and the lock pins 70 are The guide hole and the guide groove 60 are provided through the bush 72 so as to be continuously inserted therethrough. In other words, the lock plate 62 is vertically rotated around the support rod 44 with respect to the guide groove 60, that is, the bracket 58, within the range of the guide hole 68, and between the support rod, the front end of the guide groove, and In the range between the lock pin 70 and the rear end of the guide groove, it is movable in the front-rear direction along the guide groove.

The lock plate 62 is biased upward, for example, by the biasing means 74. As the biasing means 74, for example, a locking piece 76 of the lock plate base 62b,
Locking piece fixed on top of child back frame 50
A tension coil spring stretched between 78 is available.

For example, at the front end position of the child back 16, that is, at the front end position of the lock plate 62 with respect to the bracket 58, a stopper means 80 that locks at the rear end to the lock plate that has turned upward is provided on the bracket. It is provided for. As the stopper means 80, for example, a stopper piece having a locking surface 80a corresponding to the lock plate 62 and formed of a hard resin material can be used. The stopper piece is fixed to the bracket 58 above the guide groove 60. Have been.

In such a configuration, as shown by a solid line in FIG. 7, at the front end position with respect to the guide groove 60, the lock plate 62 is moved by the biasing force of the biasing means (tension coil spring) 74 in the guide hole. When it is deflected upward in the range of 68, it is engaged with the stopper piece (stopper means) 80 of the bracket.
That is, the stopper piece 80 at the front end position with respect to the guide groove 60
The child back 16 is held at the front end position by restricting the movement of the lock plate 62 in the front-rear direction by engagement with the child back 16.

As shown in FIGS. 5 to 7, the guide groove 60 is, for example, an engagement groove in which the lock pin 70 can be engaged.
60a is continuously formed at the rear end. Engagement groove 60
a is formed by bending upward from the guide groove 60, and as shown by a solid line in FIG. 8, under the upward rotation about the support rod 44 due to the biasing force of the biasing means 74, Lock pin
It is configured to enable insertion and engagement of the 70.

In this configuration, since the movement of the lock plate 62 in the front-rear direction is restricted by holding the lock plate 62 with respect to the bracket 58 at the rearmost position of the guide groove 60, the child back 16 is moved to the rearmost position. Will be retained.

When the child seat 12 is used, the child back 16 is set at the front end position, and when the child cushion 14 is used with the armrest, and when the child seat is stored, the child back is placed at the rear end position. Is set to

An operating means 82 for forcibly rotating the lock plate 62 against the biasing force of the biasing means 74 to unlock the lock plate extends from the lock plate to the side of the seating surface of the child seat 12 (see FIG. 4). 2 and 5).
As the operating means 82, for example, a strap connected to the base locking piece 84 of the lock plate 62 can be used.

Reference numeral 86 shown in FIGS. 2, 5 and 6 is a belt serving as an operation piece when pulling out the child back 16 forward.

For example, assume that the front end position (use position) shown in FIGS. 1 and 5 is the initial position of the child back 16.
In the front limit position of the child back 16, as shown by a solid line in FIG. 7, the lock plate 62 locks against the bracket 58 under the engagement with the stopper piece 80 by the biasing force of the biasing means 74. Then, it is held at the front end position of the guide groove 60.

In such an initial position, the biasing means 74
When the lock plate 62 is rotated clockwise within the range of the guide hole 68 under the pulling of the strap (operating means) 82 against the biasing force of the lock, as shown by a two-dot chain line in FIG. The plate is unlocked and the lock plate moves backwards relative to the bracket 58, i.e. child back
16 pushes are possible.

At this time, when the child back 16 is pushed in, the lock plate is moved from the front end position of the guide groove 60 to the lock plate.
When the 62 is moved backward, the lock plate
Even if it rotates upward (counterclockwise) under the biasing force of 74,
Since the engagement with the stopper piece 80 does not occur, the operating force of the strap 82 can be released after the child back 16 is pushed. Therefore, the lock release operation by the strap 82 after the lock release, and the pressing operation of the child back 16 are not complicated.

When the lock plate 62 reaches the rearmost position of the bracket 58, that is, the guide groove 60 under the pushing of the child back 16, as shown by a solid line in FIG. The lock plate is biased upward (counterclockwise) under the
The engagement of 70 locks the lock plate with respect to bracket 58. That is, the child back 16 is automatically held at the rear end position shown in FIGS. 3 and 9 by being pushed backward.

When the child cushion 14 is flipped up at the rear end position of the child back 16 as described above, the child cushion is inserted into the storage recess 24a of the seat back,
That is, the child seat 12 can be stored.

In the rearmost position of the child back 16 shown in FIG. 9, after the child cushion 14 is pulled out from the storage recess 24a of the seat back, the strap 82 is pulled against the biasing force of the biasing means 74. The lock plate 60 first rotates downward (clockwise) within the range of the guide hole 68, and then further rotates with the lock pin 70. Then, as shown by a two-dot chain line in FIG.
Lock plate 62 until position 70 is disengaged from engagement groove 60a.
Is rotated, the lock plate becomes free with respect to the bracket 58, so that the child back 16 can be pulled out.

When the child back 16 is pulled out, the belt 86 on the front of the child back is used.

In the unlocked state of the lock plate 62 shown by the two-dot chain line in FIG.
When the lock plate 62 is pulled out to the front end position, the lock plate 62 is biased upward under the biasing force of the biasing means 74, and the lock plate is moved relative to the bracket 58 under the engagement between the lock plate and the stopper piece 80. And the child back is again held at the front end position (see FIGS. 5 and 7).

At this time, if the child back 16 is shifted forward from the rear limit position, the lock pin 70 and the engagement groove 60a do not engage even if the traction force of the strap 82 is released.
The tow operation of the strap after the movement of the child back becomes unnecessary.

Then, the guide surface 62 on the front surface of the lock plate
When the a contacts the stopper piece 80, the passage of the lock plate 62 below the stopper piece is ensured under the downward (clockwise) rotation, and the bias means
Engagement with the stopper piece under a biasing force of 74 locks the lock plate against the bracket 58. Therefore, even at the front end position of the child back 16, the lock plate 62 is automatically locked to the bracket 58.

As described above, in the built-in type child seat structure 10 of the present invention, the child back 16
Is supported by the X-link 36 so as to be movable in the front-rear direction.
Is held at the front end position and the rear end position
Therefore , if the child back is pulled out to the front end position when using the child seat 12, even a small infant can easily obtain an appropriate sitting posture that does not sink backward.

That is, a seat belt for a child seat
By the combination of 18 and the child back 16 held at the front end position , even a small infant about 3 years old who has weak self-holding power can maintain a good sitting posture,
According to the present invention, the built-in type child seat 12 which can be used even for a child of about three years of age can be easily obtained.

When the child cushion 14 is used as an armrest and when the child seat 12 is stored, if the child back 16 is pushed to the rear end position, the function as an armrest is reduced and the child seat is stored. Can be reliably prevented.

The end of the support rod 44 connecting the left and right X links 36 supporting the child back 16 is inserted into the guide groove 60, and the lock plate 62 of the end of the support rod is locked and unlocked with respect to the bracket 58. Since it is sufficient, the configuration does not become complicated.

Here, in the embodiment, the X link is embodied as the link mechanism 36.
The link mechanism is not limited to the X-link, and may be, for example, a parallel link as the link mechanism is sufficient as long as the link 16 can be supported so as to be movable back and forth.

In this case, the guide pin into which the guide groove 60 is loosely inserted is directly fixed to, for example, the child back 16 or the like.

In the embodiment, the child back 16 is held at the front end position (use position) and the rear end position (storage position) by locking and unlocking the lock plate 62 with respect to the bracket 58. Since it is sufficient to hold at each position, for example, the movement of the guide pin (support rod) 44 with respect to the guide groove 60 may be restricted by other means.

However, if the lock plate 62 disposed at the end of the support rod 44 is used, it is possible to sufficiently prevent the configuration from being complicated, and to obtain appropriate locking and unlocking irrespective of the simple configuration.

Further, at the front end position of the child back 16, the lock plate 62 is locked under engagement with the stopper piece 80, but it is sufficient to restrict the movement of the lock plate with respect to the bracket 58. However, the present invention is not limited to this. For example, similarly to the case where the child back is held at the rearmost position, an engagement groove bent from the guide groove may be provided continuously at a predetermined position of the guide groove.

In this configuration, the lock pin 70
May be provided integrally with the lock plate 62.

The embodiments described above are for explaining the present invention, and do not limit the present invention in any way.
It goes without saying that all modifications and alterations within the technical scope of the present invention are included in the present invention.

[0068]

As described above, according to the built-in type child seat structure of the present invention, since the child seat belt is constituted by a five-point system, an infant of about 3 years old who has a weak holding force of his / her own posture. In this case, a stable sitting posture can be easily secured. The 5-point seat belt is not limited to infants of about 3 years old, but can also be used by infants and children of 6 years and older, so the range of ages that can be seated in the built-in child seat is surely expanded. Is done.

Further, since the retractor of the shoulder belt is fixed to the vehicle body member such as the rear sherif, the load acting on the retractor via the shoulder belt is dispersed and released in the vehicle body member. Therefore, the resistance to the excessive load can be sufficiently maintained between the retractor and the vehicle body members, and the posture collapse is effectively prevented.

Further, since the left and right shoulder belts extend to the side of the seating surface of the child seat through the through holes of the child seat back, the application of a load from the shoulder belt to the child seat back can be sufficiently suppressed, and an excessively large load is applied. Deformation of the child seat back and the like can be reliably prevented even under a load.

[0071]

According to the built-in type child seat structure of the present invention, the child seat back is supported by the link mechanism so as to be movable in the front-rear direction.
Due to the movement restriction under the lock in the limit position,
Since the child seat back is held at the position , if the child seat back is pulled out to the front end position when using the child seat, an appropriate sitting posture that does not sink backward can be obtained. Therefore, by combining the child seat back supported by the link mechanism and the 5-point seat belt,
A stable sitting posture of the infant can be further ensured.

When the child cushion is used as the armrest and the child seat is stored, if the child back is pushed to the rear end position, the function as the armrest is reduced, and the child seat is obstructed during storage. Can be reliably prevented.

The link mechanism is an X link, and the end of the support rod connecting the left and right X links is inserted into the guide groove of the bracket as a guide pin, and the lock plate of the end of the support rod is locked to the bracket. , If it can be unlocked, despite the simple configuration,
Appropriate locking and unlocking operations are sufficiently obtained.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a seat body (rear seat) on which a built-in type child seat according to the present invention is mounted in a use position.

FIG. 2 is a schematic perspective view of a seat body in which a built-in type child seat is mounted in a use position.

FIG. 3 is a schematic side view of the seat body in which a built-in child seat is mounted in a storage position.

FIG. 4 is a schematic exploded perspective view of tongues and buckles of left and right shoulder belts.

FIG. 5 is a schematic front view of the built-in type child seat structure according to the present invention in a use position.

FIG. 6 is a schematic exploded perspective view of the built-in type child seat structure, partially broken away.

FIG. 7 is a partially enlarged view of the built-in child seat structure in a use position.

FIG. 8 is a partially enlarged view of the built-in child seat structure in a storage position.

FIG. 9 is a schematic front view of a built-in type child seat structure in a storage position.

[Explanation of symbols]

10 Built-in type child seat structure 12 Child seat 14 Child (seat) cushion 16 Child (seat) back 18 Child seat seat belt 18-1, 18-2 Shoulder belt 18-1a, 18-2a Tongue 18-3 Buckle 22 Rear seat (Seat body) ) 24 Seat back 24a Storage recess 28 Retractor 30 Body member (rear sherif) 32 Through hole 36 Link mechanism (X link) 44 Support rod 58 Bracket 60 Guide groove 60a Engagement groove 62 Lock plate 68 Guide hole 70 Lock pin 74 Biasing means (Tension coil spring) 80 Stopper means (Stopper piece) 82 Operating means (Strap)

Continuation of the front page (56) References JP-A-7-186797 (JP, A) WO 93/21871 (WO, A1) (58) Fields investigated (Int. Cl. ⁷ , DB name) B60N 2/26 -2/30 B60R 22/10

Claims (3)

(57) [Claims] 1. A built-in type child seat structure in which a child seat cushion can be stored in a storage recess of a seat body together with a child seat back under an operation of flipping up from a use position centering on a hinge pin. Through holes are formed in the left half and the right half of the upper part of the child seat back, respectively, and a pair of left and right shoulder belt terminals from a retractor fixed to a vehicle body member at the rear of the seat body are attached to the rear of the seat body. It is extended to the seating surface side of the child seat via the through-hole of the child seat back from, with the predetermined vehicle body member
Binding, is fixed, inserted buckle of a pair of tangs provided respectively on the shoulder belt, provided for the child seat cushion, a pair of right and left shoulder belts, in combination with the corresponding buckle, child Built-in type child seat structure, characterized in that the seat belt for the driver has a five-point structure. 2. A built-in type child seat structure in which a child seat cushion can be stored in a storage recess of a seat body together with a child seat back under a flip-up operation from a use position centering on a hinge pin. before limit position being set, movable back and forth between the limit position after being set at the time of storage, while being supported by a pair of extendable and retractable link mechanism, the lock plate interlocked with the back-and-forth movement of the child seat back the movement regulation of the longitudinal direction Ru good to lock the front limit position of the child seat back, built-in child seat back structure, characterized in that the can hold respectively a rear limit position. 3. The link mechanism includes two link arms.
The X-link combined with the X shape and the guide pin inserted into the guide groove of the bracket
Each end of the support rod connected and supported between the intersections of the X links
The lock plate at the end of this support rod is
3. The locking and unlocking of the bracket.
The described built-in child seat structure.