JP3385531B2 - Child seat device with built-in seat - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a child seat device used when an infant is put on an automobile.

[0002]

2. Description of the Related Art In a current child seat device, a seat belt is generally used to fix the seat to an existing seat. However, in order to fix the seat correctly, it is necessary to have an arm strength, which is difficult for a woman or an elderly person. Met. On the other hand, Japanese Unexamined Patent Publication No. 8-58444 discloses an integrated child seat in which the infant seating surface as shown in FIG. 8 is developed from the backrest of the seat and seated.

[0003]

However, with the conventional integrated child seat shown in FIG. 8, it is not possible to carry an infant without a cervical seat such as a 0 to 1 year old child.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to allow an infant such as 0 to 1 years old to safely board in a sleeping position and to adapt to the growth of the infant. It is an object of the present invention to provide a child seat device with a built-in seat that can be seated and can be easily stored when not in use.

[0005]

A seat-embedded child seat device 10 of the present invention for achieving the above object is provided.
The seat portion 16 of the base sheet 12 is disposed so as to be embedded in the base sheet 12 so as to be developed and stored in a forward projecting manner.
A child seat body 20 that can be deployed while being held straight in a side view on the upper surface side and forms a substantially horizontal infant holding surface (21) on which the infant can be placed in a sleeping position when deployed in the straight state. And a sleeping posture infant locking means (3) which is attached to the back surface of the child seat body 20 and can stably lock the infant on the infant holding surface (20b, 21) in a sleeping posture.
0) and a headrest provided on the upper side when the child seat body 20 is stowed, the rear side 42b thereof being capable of receiving the head of an infant when the infant is placed on the infant holding surface in a sleeping position. A headrest 40 having a part receiving means (41) and a seat-embedded child seat device having the headrest 40.

The side surface 2 of the child seat body 20
0c, when the child seat body 20 is unfolded and an infant is placed on the upper surface side, the child seat body 20
Separation prevention means 21 for preventing separation of the infant from the side to the side
s and 50 may be provided.

The child seat body 20 has a folded structure in which the child seat body 20 is folded in two. When the upper side 24 and the lower side 26 have their front surface sides (24a, 26a) faced, the child seat body 20 is folded forward. The rear seat side 26b of the lower part 26 may be used as the infant seating surface 22.

Further, the sleeping posture infant locking means (30) includes a locked state of the infant in the sleeping posture when the child seat body is unfolded in a straight state and a seat state when the child seat body is folded in the folded state. It may be configured such that it can be used in combination with the locked state of the infant in the posture and can be selectively performed in any one of them.

The child seat body 20 when stored
A headrest mounting hole 17 for mounting the headrest 40 removed from the child seat body 20 may be provided in the base sheet 12 immediately behind the upper part of the above.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The seat-embedded child seat device of the present invention is a seat for an adult of a passenger car, in which a child seat body can be deployed and housed in a forward projecting manner on a base seat that can house a child seat buried therein. Since the headrest is detachably attached to the upper part of the child seat body, it is possible to hold the infant in the sleeping position by simply unfolding the child seat body from the state where the child seat is stored. You can get a face. Further, the back side of the headrest can be used as the infant head receiving surface. Also,
With the child seat body stored, the front side of the child seat body can be used as an adult seat. The child seat body may be supported by means of pivotal support, hinge support, sewing through cloth or leather, and the like.

Further, since the headrest is formed with an infant head receiving recess on the back side, the head of an infant whose neck is not sitting can be received and stabilized by the recess to prepare for a side impact. it can. The headrest may be formed by assembling a block member to form the infant head receiving recess, or may be integrally formed.

Also, when the child seat body is unfolded, the infant seats on the upper surface of the child seat, and the infant seat holding concave surface is formed on the back side of the child seat so that both sides are higher than the central portion. It can be retained to improve safety.

Further, by providing a separation prevention device on the side surface of the child seat body for preventing the infant from separating laterally when the child seat body is unfolded and placed on the upper surface side, the infant is more safely held. can do. As the separation prevention device, for example, a fence wall device standing up from the side surface of the child seat body or a hilly device that gently rises may be used.

Further, the child seat body is constructed in a folded structure of two folds, and is folded back so that the upper surface side and the lower surface side are respectively brought into contact with each other, and the child seat main body is expanded forward to form a lower portion. By making the back side of the infant seating surface, it is possible to hold the infant in a sitting posture according to the growth and physical condition of the infant. Further, by connecting the upper portion and the lower portion of the child seat main body having a certain thickness and elasticity to a part of the front surface side as a connecting portion, and forming a one-way folded structure,
Even if an infant is placed on the upper surface of the child seat that has been unfolded and the child seat is subjected to a downward load, the connecting part does not bend in a reverse V shape, and it is easy to face the front side. It can be turned back to realize the infant seating surface. A pivot or a hinge having a limited range of motion may be used for the connecting portion.

Further, a headrest mounting hole for mounting a headrest removed from the child seat is provided in the backrest portion of the base sheet immediately behind the upper portion of the child seat body when the child seat body is embedded in the base sheet. Thus, when the child seat body is folded back and unfolded to hold the infant in the sitting posture, the headrest attached to the backrest portion of the base sheet can hold the infant's head.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred first embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective explanatory view of a child seat device 10 with a built-in seat, and shows a state in which an infant is placed and held on the upper surface side of a child seat main body 20 which is deployed forward in a throwing manner. The seat-embedded child seat device 10 according to the present embodiment is arranged, for example, on one side of a rear seat of an ordinary passenger car, and FIG. 1 illustrates the seat-embedded child seat device 10 with the periphery omitted. FIG. 2 is a partially omitted side sectional view of the present embodiment, in which the base sheet 12 is a backrest portion 1 which is upright.
4 and the seat portion 16 that is substantially horizontal form an L shape in a side view.

In FIG. 1, the base sheet 12 is provided with a storage groove 18 for storing it in a buried state when the child seat body 20 is set upright. The storage groove 18 is recessed from the upper end surface 14d of the backrest portion 14 to the L-shaped corner portion, that is, the upper surface of the seat portion 16, and the backrest portion 14 is formed in a concave shape in plan view. In FIGS. 1 and 2, the pivots 15 are planted from the left and right sides below the side surface 18 c of the storage groove 18 and in the vicinity of the seat portion 16 and project toward the inside of the storage groove 18. The child seat main body 20 is pivotally attached to the base sheet 12 by the pivot 15, and the child seat main body 20 which is embedded in the base sheet 12 is supported in a forwardly projecting manner so that it can be stored and stored. 1 and 2, the headrest mounting hole 17 for mounting the headrest 40 detached from the child seat body 20 is located on the upper end surface 14d of the backrest portion 14 and immediately behind the child seat body 20 during storage. The upper end surface 14d is opened to the upper end surface 14d.
It is provided substantially perpendicular to d with a required depth. A shoulder belt attachment hole 19 for attaching a shoulder belt 32 of a child belt 30, which will be described later, to lock or open it as needed is provided in the upper portion of the front surface 18a of the storage groove 18.

In this embodiment, the child seat body 20 is formed by wrapping a core material such as structural urethane having a required elasticity with a soft material such as soft urethane sponge, and then wrapping it with a skin cloth. The overall schematic shape of the child seat body 20 is a three-dimensional rectangular shape having a required thickness, and is formed in such a size that a baby can be placed with a margin. Then, the front side 20a of the child seat body 20 is formed to be substantially flush with the front side 14a of the backrest portion 14 of the base sheet 12 when stored in the base sheet 12. The rear side 20b of the child seat body 20 has a central portion 21t on both sides 21s when the child seat body 20 is unfolded.
It is formed to be higher to form the infant holding concave surface 21. Although the infant holding concave surface 21 is provided as a substantially flat surface in the embodiment, it may be formed as a concave curved surface.

Further, as shown in FIG. 3, the child seat body 20 is roughly divided into an upper part 24 and a lower part 26 and can be folded in two, and two cushion bodies are connected by a skin cloth. Is formed. And
The seam 25 is on the front side 2 of the child seat body 20.
It is connected by a skin cloth at 0a. Accordingly, even if an infant is placed on the rear side 20b, which is the upper side when the child seat body 20 is unfolded and unfolded, the upper portion 24
Since the connecting end face 24d of the lower end 26 interferes with the connecting end face 24d of the lower end 26, the connecting end face 24d of the upper end 24 does not bend in an inverted V shape.
4a and the front surface side 26a of the lower part 26 have a one-way folding structure that can be easily folded back in the direction in which they are brought into contact with each other.

In FIGS. 1 and 2, the child holding concave surface 21 is provided with a child belt 30. The child belt 30 is composed of a shoulder belt 32, a crotch belt 34, and an abdominal buckle body 36 that gathers these into a Y-shape on the abdomen of the infant. The shoulder side end of the shoulder belt 32 is the infant holding concave surface 2
The shoulder belt mounting hole 28 provided in the vicinity of the upper end of the crotch belt 1 is locked and locked, and the crotch side end of the crotch belt 34 is sewn and fixed in the middle of the infant holding concave curved surface 21. Shoulder belt mounting hole 28 is locked or opened as necessary to shoulder belt 3
It is configured such that the shoulder end of 2 can be attached and detached. The abdominal buckle body 36 is formed into a three-dimensional semicircular shape having cushioning properties on both sides, and when the infant is held in a sitting position, the opposite surface can be used by contacting the abdomen of the infant.

By placing the infant on the central portion 21t of the concave portion 21 for holding the infant and wearing the child belt 30 on both sides 21s higher than the central portion 21t, the infant is held so as to wrap the infant's body and the infant is prevented from a strong lateral impact. Can be protected. In addition, the child seat body 20 is replaced by the base sheet 1
The child belt 30 can be housed in the infant holding concave surface 21 when the child belt 30 is housed in 2. Further, a headrest mounting hole 27 is provided in an upper end surface 20d which is an upper portion of the child seat body 20, and a latch mechanism (not shown) is provided inside thereof.

The headrest 40 mounted in the headrest mounting hole 27 is composed of a headrest main body 42 and two shafts 44 planted on the lower surface thereof. The headrest main body 42 is provided with an infant head receiving recess 41 suitable for mounting or supporting the infant's head on the back side 42b. In addition, the front surface side 42a of the headrest main body 42
Has a convex curved surface suitable for receiving the head of an adult. A plurality of notches (not shown) are engraved at intervals on the shaft 44, and the latch mechanism of the headrest mounting hole 27 bites a required notch of the shaft 44 to hold it at an appropriate position and can open it as needed. In this way, the headrest 40 is detachably held, and is detached from the child seat body 20 as necessary, and the base sheet 12
It can be mounted in the headrest mounting hole 17.

In FIG. 2, the child seat body 20 is shown.
The headrest 40 is adjusted to the height of an adult's head in the state where it is stored in the base sheet 12 until it comes into close contact with the child seat body 20 in the state in which it is expanded as shown in the solid line. It is lowered to form a continuous infant support surface. In addition, with the configuration in which the headrest 40 that is detachably mounted on the upper portion of the child seat body 20 which is one of the features of the present invention is provided, it is only necessary to pull down the child seat body 20 together with the headrest from the child seat storage state suitable for boarding an adult. Can bring up a child seat that allows a baby to safely board in a sleeping position. In addition, by contacting the head of the infant with the infant head receiving recessed portion 41 along the head of the infant, the head of an infant without a cervical seat, such as a 0 to 1 year old child, is prevented from wobbling. It can be supported and prepared for the impact of an accident.

In FIG. 3, the child seat body 20 is shown.
When the headrest 40 is removed from the main body 20 and the front side 24a of the upper side 24 of the child seat body 20 and the front side 26a of the lower side 26 are brought into contact with each other, the front side of the lower side 26 is unfolded. The back side 26b can be used as the infant seating surface 22. At this time, the shoulder side end of the shoulder belt 32 of the child belt 30 is connected to the shoulder belt mounting hole 19 provided in the storage groove 18 of the base sheet 12, and the headrest 4 is attached.
0 is mounted in the headrest mounting hole 17 of the base sheet 12. Seat built-in child seat device 1 according to the present embodiment
No. 0 has a structure in which the child seat body 20 is folded in two in one direction, so that a wide infant holding concave surface 21 can be obtained by unfolding and folding the child seat body 20 and folding and unfolding provides a good height. The infant seating surface 22 is obtained.

The infant holding concave surface 21 is more preferably formed as a continuous curved surface so as to fit the body and head of the infant as described above. Further, since the infant holding concave surface 21 and the infant head receiving concave portion 41 may be concave when the infant is placed, a soft cushion material is used for a portion contacting the infant, and a cushion material having a little elasticity around is used. You may make it concave by the weight of an infant.

The operation of the first embodiment of the present invention will now be described. Seat built-in type child seat device 1 according to the first embodiment
An adult who intends to board an infant in a passenger car equipped with 0, when the infant is an infant of 0 to 1 year old who does not have a cervical seat, starts from the backrest portion 14 of the base sheet 12 to the headrest 40 and the child seat body 20. To deploy to the front. Then, the child seat body 20 is
The front surface side 20a contacts the upper surface of the seat portion 16 of the base sheet 12 to form a bed-shaped infant holding concave surface 21. The infant is placed on the back, for example, and the child belt 30 is attached to the infant to fix the infant's body. Then, the position of the headrest 40 is moved to adjust the infant head receiving recessed portion 41 to appropriately contact the infant's head, and the operation is completed.

When the infant gets a little older and can take a sitting posture, the headrest 40 mounted on the child seat body 20 in the stored state is taken off, and the headrest mounting hole 17 provided on the backrest portion 14 on the immediate rear side thereof is removed. Attach to. And the upper part 24 of the child seat body 20
Is pulled out so as to be advanced, and the shoulder belt 32 of the child belt 30 is removed from the shoulder belt mounting hole 28. Then, it is folded back until the front surface side 24a of the upper side portion 24 faces the front surface side 26a of the lower side portion 26. Then, the lower side portion 26 is developed forward from the pivot 15 of the base sheet 12 so that the back side 24b of the upper side portion 24 abuts on the upper surface of the seat portion 16 of the base sheet 12. At this time, the back side 26b of the lower portion 26 is used as the infant seating surface 22 to seat the infant forward. The shoulder belt 32 of the child belt 30 is fitted to the shoulder belt mounting hole 19 of the base sheet 12 to fix the body of the infant, and the process is completed. The infant is held so that his / her body is wrapped inside the storage groove 18 and protected from a side impact.

When an infant having a sitting height in which the head is positioned higher than the upper end surface 14d of the backrest 14 when seated on the infant seating surface 22, the headrest 40 is moved forward by the infant head receiving recess 41 when the infant is seated. The headrest 40 is reversed so that the headrest 40 shown in FIG. 5 is mounted in the headrest mounting hole 17 of the backrest 14 at an appropriate height so that the head of the infant is brought into contact with the headrest 40. The head of the infant is held so as to be wrapped in the infant head receiving recess 41, and in particular, it is possible to prepare for an impact from the side. In the case of an infant who has grown to this extent, an adult seat belt (not shown) provided on the base sheet 12 may be used instead of the child belt 30 according to the infant's physique. When mounting an adult or luggage, the child seat body 20 can be easily stored in the storage groove 18 of the base sheet 12 by performing the reverse operation when the child seat body 20 is unfolded.

Next, the second aspect of the present invention will be described with reference to FIGS.
An example will be described. In the second embodiment, when the infant is placed on the side surface 20c of the child seat body 20 of the first embodiment on the rear side 20b which is the upper side of the child seat body 20 when the child seat body 20 is unfolded, the child seat Since the separation prevention device 50 for preventing separation to the side is provided and the other structure is almost the same as that of the first embodiment, only a part having a different structure and a part newly provided. Will be explained.

In FIG. 3, the separation prevention device 50 is provided with a wall portion 5.
2 and the shaft 54. The wall portion 52 is a plate-shaped member having a required thickness, and is formed by wrapping a structural urethane core material in a soft urethane sponge and enclosing it with a skin cloth. Two shafts 54 are planted below one surface of the wall portion 52 and vertically protrude from the surface, and a plurality of notches (not shown) are formed at intervals in the shaft 54. Child seat body 20 of the present embodiment
Shaft receiving holes 29 for inserting and supporting the shaft 54 are provided on the side surfaces 20c on both sides of the shaft. The shaft receiving hole 29 is internally provided with a latch mechanism (not shown) that can be locked by biting a required notch of the shaft 54 and opened when necessary.

Further, since the shaft receiving hole 29 can lock or open various devices having a shaft having a notch formed therein, it is possible to mount a table device 60 as shown in FIG. The table device 60 is configured by connecting leg plates 64 to both sides of the top plate portion 62, and the leg plate portions 64 have shafts 66 implanted therein. The top plate portion 62 and the leg plate portion 64 form the wall portion 52 of the separation prevention device 50.
It is formed with the same internal structure as. The top plate portion 62 and the leg plate portion 64 are connected by a skin cloth so that they can be turned by a connecting portion 68. When the shaft 66 is inserted into the shaft receiving hole 29 and locked, the leg plate portion 64 is completely fixed, so that the table device 60 is held in the table structure without particularly locking the connecting portion 68.

FIG. 7 is a side view 2 of the child seat body 20.
0c shows another embodiment of the engaging means for mounting the mounting object 100 such as the detachment prevention device 50 and the table device 60 at 0c. A large-diameter tip 70 is implanted in the mounted article 100. The large-diameter tip 70 has a disk-shaped retaining piece 72 having a diameter larger than that of the engaging portion 71 at the tip of a cylindrical engaging portion 71 near the root of the attachment 100 which is vertically implanted.
Has been extended. The key hole-shaped receiving hole 74 is used for the large-diameter tip projection 7.
It has a substantially circular retainer piece through hole 75 through which the zero retainer piece 72 can pass, and a key-shaped opening formed of an engagement notch 76 continuously provided in a part of the lower side of the periphery thereof. The inside thereof has a space into which the large tip projection 70 can be inserted. The retaining piece 72 of the large-diameter projection 70 at the tip is inserted into the retaining piece passing hole 75 of the keyhole-shaped receiving hole 74, and the attachment 100 is slid so as to drop the engaging portion 71 into the engaging notch 76. The attachment 100 can be easily attached to the child seat body 20 only by combining them, and the engaging means can be extremely simplified without using a complicated mechanism.

The side surface 2 of the child seat body 20
The engaging means for mounting the attachment 100 such as the detachment prevention device 50 or the table device 60 on 0c is not limited to the embodiment, and a male hole provided on the side of the attachment 100 in the receiving hole screwed with the female screw. Appropriate means may be used, such as screwing screws together or attaching them with hook-and-loop fasteners.

The operation of the second embodiment of the present invention will be described. Adults carrying infants can use the child seat body 2
After 0 is unfolded from the base sheet 12, the shaft 54 of the detachment prevention device 50 is inserted and mounted in the shaft receiving hole 29 of the side surface 20c of the child seat body. Since the separation prevention device 50 forms a wall that rises sufficiently high from the upper side surface of the child seat body 20 that is the infant holding surface,
It is possible to reliably prevent the infant from falling off. Further, by separately providing a fall-off prevention device, the child seat body 20
Since the backrest portion 14 of a light vehicle or a commercial vehicle is thin, the base sheet 12 can be embedded in a buried state.

[0035]

As described above, according to the child seat device with a built-in seat according to the present invention, it is arranged so as to be embedded in the base sheet so that it can be deployed and stored in a forward projecting manner so that the seat of the base sheet can be accommodated. A child seat main body that can be deployed while being held straight on the upper surface of the part in a side view, and a substantially horizontal infant holding surface on which the infant can be placed in a sleeping posture on the upper surface side when deployed in a straight state, and a child seat A sleeping posture infant locking means attached to the back of the main body and capable of stably locking the infant on the infant holding surface in the sleeping posture, and provided on the upper side when the child seat body is stored, and the infant is placed on the back side thereof. And a headrest having infant head receiving means capable of receiving the head of the infant when the child is placed on the infant holding surface in the sleeping posture. Is received by side, it is possible to improve the safety for holding an infant.

Further, since the headrest has an infant head receiving recess on the back side, even a 0-year-old child whose neck is not sitting can hold his head stably and safely, especially from an impact from the side. It can protect the head and neck of the.

In addition, since the rear side of the child seat body is formed with an infant holding concave surface whose both sides are higher than the central portion when the child seat body is unfolded, the child seat body is held so as to wrap it around the body of the child to protect the infant from the impact of an accident. The safety to protect can be improved.

On the side surface of the child seat body,
When the child seat body is unfolded and the infant is placed on the upper surface side, a separation prevention device is provided to prevent the infant from separating laterally from the child seat body.
The infant can be held more safely. Further, it is possible to provide a child seat device with a built-in seat that can safely hold an infant even in a light vehicle or a commercial vehicle in which the backrest of the base sheet is thin.

Further, the child seat body has a folded structure of two folds, and in a state where the front side surfaces of the upper side portion and the lower side portion are brought into contact with each other and folded back, the child seat main body is deployed in a forward projecting shape and the lower side portion. Since the back side is the infant seating surface, the infant can be safely held in a sleeping position or a sitting position according to the growth and physical condition of the infant.

In addition, since the base sheet immediately behind the upper portion of the child seat body when it is stored is provided with a mounting hole for mounting the headrest removed from the child seat body, it is possible to hold an infant in a sitting position. As the infant grows, the headrest can be received at the headrest to increase safety.

[Brief description of drawings]

FIG. 1 is a perspective explanatory view showing a state in which a child seat main body is unfolded from a child seat device with built-in seat according to a first embodiment of the present invention to hold an infant.

FIG. 2 is a partially omitted side sectional view thereof.

FIG. 3 is a partially omitted side sectional view showing a state in which a child seat body is folded back and expanded.

FIG. 4 is an explanatory perspective view showing a configuration of a second embodiment.

FIG. 5 is a perspective view showing an embodiment in which a table device is attached to the child seat body of the second embodiment.

FIG. 6 is a front view of a main part of the table device.

FIG. 7 is a perspective view showing another embodiment of the engaging means for mounting a mounting article such as a fall prevention device on the child seat body of the second embodiment.

FIG. 8 is a perspective view of a conventional integrated child seat device.

[Explanation of symbols]

10 Child seat device with built-in seat 12 Base sheet 17 Headrest mounting hole 20 Child seat body 20c side 20b back side 21 infant holding concave 21s both sides 21t central part 22 Infant seating surface 24 Upper part 24a front side 26 Lower part 26a front side 40 headrest 41 Infant head receiving recess 42b back side 50 Separation prevention device

Continuation of the front page (56) References JP-A-8-40124 (JP, A) JP-A-9-30298 (JP, A) JP-A-52-59421 (JP, A) JP-A-9-30299 (JP , A) Actually open flat 5-1576 (JP, U) Actually open flat 1-82942 (JP, U) Actually open 61-7436 (JP, U) US Patent 2962601 (US, A) US Patent 3094354 (US, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B60N 2/00-2/72

Claims (5)

(57) [Claims] 1. A base sheet is embedded in a base sheet and is thrown forward.
It is provided so that it can be deployed and stored freely,Base sheet seat
Can be deployed while being held straight on the upper surface of the part when viewed from the side.
The infant is placed in a sleeping position on the upper surface when it is deployed straight.
Forming a substantially horizontal infant support surfaceChild sea
The main body,Attached to the back of the child seat body,
Sleeping posture infant lock that can be locked stably on the holding surface in the sleeping posture
Means and Child seat bodyThe head provided on the upper side when storing
Drest, with the rear side of the infant on the infant holding surface
Infant head that can receive the infant's head when placed in a sleeping position
Having a part receiving meansIn the seat with the headrest,
Storage type child seat device. 2. The same seat is provided on the side surface of the child seat body.
Unfold the child seat body and place the infant on the top side.
The child seat to the side when
2. The seat-embedded child seat device according to claim 1, further comprising separation prevention means for preventing the seat from falling off . 3.Child seat body is folded in two
Is a return structure, Fold back with the upper and lower surfaces facing each other
The rear side of the lower part of the
Let the child sit down In the seat according to claim 1 or 2.
Storage type child seat device. 4. A sleeping posture infant locking means is a child seat.
Of the infant in the sleeping position when the main body is unfolded.
Shown in the locked state and with the child seat body folded.
Combined with the locked state of the infant in the sitting position when opened
In addition, it is possible to selectively do either
The child seat device with a built-in seat according to claim 3, which is a characteristic . 5. The upper part of the child seat body when stored
Immediately after the child seat body,
Wearing a headrest that allows you to wear the removed headrest
The seat-embedded child seat device according to claim 3, further comprising a section .