JP2691122B2 - Vehicle seat with infant seat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an infant in which a seat back is supported on the rear end side of a seat cushion, and an infant seat portion and an infant backrest portion constituting an infant seat are incorporated in the seat cushion. The present invention relates to a vehicle seat with a passenger seat.

[0002]

2. Description of the Related Art As a conventional vehicle seat with a baby seat of this kind, there is, for example, the one disclosed in Japanese Utility Model Publication No. 58-49874. That is, the lower half of the seat back, which serves as the infant seat, is supported by the back frame so that it can be erected between a normal seat back standing position and a forward tilt position substantially parallel to the seat cushion. The lower half of the seat back, which is in a forward tilted position where it can be seated, is supported by the back frame only at its base end side. In addition, the upper half of a normal seat back is used as a backrest for infants.

Another example of a vehicle seat with a child seat is shown in Japanese Utility Model Laid-Open No. 103826/1993. That is, the base end of the infant seat portion is pivotally attached to the seat back so as to be able to be erected between a forward tilt position that is close to the seat cushion in a substantially horizontal posture and a substantially vertical upright position that overlaps the seat back. When the infant seat is in the forward tilt position where an infant can sit, the tip end side of the seat is extremely close to the seat surface of the seat cushion.

[0004]

However, in the conventional technique disclosed in Japanese Utility Model Publication No. 58-49874, the lower half of the seat back, which is the seat for the infant, is supported by the back frame only at the base end side. Therefore, it is necessary to hold the load applied to the entire lower half of the back when the infant is seated only on the base end side, and a supporting structure that enhances the strength and rigidity corresponding thereto is required. Therefore, there is a problem that the weight is increased and the cost is increased.

Moreover, since the upper half of the usual seat back is used as it is as the backrest portion for the infant, the side shape of the backrest surface of the seatback does not fit the infant's small body size, and the seated infant is supported laterally. There was a problem that it lacked in feeling and fit.

On the other hand, in the prior art disclosed in Japanese Utility Model Laid-Open No. 103826/1993, similarly to the above, the infant seat is supported by the seat back only at the base end side thereof, and the load applied to the tip end side thereof is applied. Since it is necessary to provide a supporting structure on the base end side having strength and rigidity capable of holding even the above, there is a problem that it causes an increase in weight and a factor of cost increase.

When the infant seat is placed in a substantially horizontal sitting posture, the infant sits very close to the seat cushion on the front end side or below the seat, so that the seated infant puts the toes in a natural posture. I couldn't extend it down enough to
I have to take a position where my knees are bent at a slightly higher position,
The infant may not be comfortable to sit on.

The present invention has been made by paying attention to such a conventional problem, and it is possible to separately support the front and rear of the infant seat portion and to obtain sufficient strength and rigidity to reduce the weight. It is an object of the present invention to provide a vehicle seat with an infant seat that enables reduction in cost and cost, and that has a good fit for an infant and is comfortable to sit on.

[0009]

The object of the present invention to achieve the above object is to provide a seat back (14) on a rear end side of a seat cushion (11),
The seat cushion (11) includes a child seat (20).
The infant seat (21) and the infant backrest (3)
In a vehicle seat (10) with an infant seat in which (1) is incorporated, a recess (12) is provided substantially in the center of the seat cushion (11), and the baby seat (21) is provided in the recess (12). ) On both sides of the front end of the link member (26,
26), and a storage position that fits in the bottom (12a) of the recess (12) and a rear upper position of the storage position, the front end side of which is supported by the link member (26, 26) and the rear end. Side is the rear end (13) of the seat cushion (11)
It is disposed so as to be displaceable to a seating position supported by being placed on the backrest, and the infant backrest portion (31) is attached to the infant seat portion (2).
When the seat back (1) is in the stowed position, the seat back (when the seat portion (21) is in the seated position, and the forward tilt position in which the seat cushion (11) is seated on the seat cushion (11). 14) Stand up along the seat 14 (2),
1) A vehicle seat with a seat for a child (10), characterized in that the vehicle seat (10) is connected to a rear end of the infant seat portion (21) so as to be able to rise and fall to a standing position capable of holding the back of the infant seated in 1). Exist in.

[0010]

When the infant seat (20) incorporated in the vehicle seat (10) with an infant seat is used, first,
The backrest (31) for the infant, which is in the forward tilted position and forms the seating surface of the normal seat cushion (11), is raised in the direction in which it overlaps with the normal seatback (14). In addition, before and after the standing up operation of the seat back (14), the infant seat portion (21) that has been stored in the storage position which is the bottom (12a) of the recess (12) of the seat cushion (11) is lifted. , The rear of the storage position is moved upward.

The baby seat (21) is moved rearward and upward so that the front end side of the baby seat (21) is supported by the link members (26, 26) pivotally supported on both sides thereof, and the rear end. When the side is displaced to the sitting position on the rear end portion (13) of the seat cushion (11), the front and rear of the infant seat portion (21) are separately supported, and the load when the infant sits down is reduced. It is possible to obtain sufficient strength and rigidity that can be supported.

When the infant seat portion (21) is in the sitting position, the infant backrest portion (31) is attached to the seat back (1).
When the child seat (20) is held in the standing position along 4), the infant seat (20) is ready for sitting. At this time, the backrest portion (31) for the infant holding the back of the infant is a separate body from the normal seat back (14), and therefore the backrest surface side of the backrest portion (31) for the infant is the infant. It can be formed into a shape that matches only the small physique.

The infant seat (21) in the sitting position
Is a seat cushion (1) for seated infants to lower their toes.
Since it is supported at a position higher than the vicinity of the bottom (12a) of the concave portion (1) of 1), the infant can extend the toes sufficiently downward so that the toes have a natural posture.

When the vehicle seat (10) with an infant seat is used as a normal seat, first, the infant backrest (31) in the standing position is tilted forward, and the seating position is moved forward and backward. The child seat (21) is moved to the lower front and stored in the bottom (12a) of the recess (12) of the seat cushion (11).

Then, the infant backrest portion (31) may be tilted forward so as to completely overlap the infant seat portion (21) moved to the storage position. At this time, the backrest part (31) for infants constitutes the seat surface of the seat cushion (11).

[0016]

An embodiment of the present invention will be described below with reference to the drawings. 1 to 9 show an embodiment of the present invention. As shown in FIG. 1, the vehicle seat 10 with the infant seat is
The seat back 14 is supported on the rear end side of the seat cushion 11 so that an adult can sit in a normal state. However, when an infant is seated, an infant incorporated in the seat cushion 11 The passenger seat 20 can be used by converting it into a form as shown in FIG.

A recess 12 is provided at a substantially central portion of a seat cushion 11 which constitutes a vehicle seat 10 with an infant seat. The recess 12 is a space for accommodating the infant seat portion 21 of the infant seat 20, and the infant seat portion 2
1 is attached to the bottom 12a of the recess 12 via link members 26, 26 pivotally supported on both sides of its front end. The tip end side of each link member 26, 26 is rotatably supported on both sides of the front end of the infant seat 20, and the base end side is turnable by a fixing bracket 27 fixed to the bottom 12a of the recess 12. Is pivoted to.

The infant seat 21 is moved to the storage position (see FIG. 1) where it is housed in the bottom 12a of the recess 12 by the swinging of the link members 26, 26 and to the upper rear of the storage position, and the front end side thereof is linked. The seat 26 is supported by the members 26, 26, and is disposed so as to be displaceable to a seating position (see FIG. 3) in which the rear end side is supported while resting on the rear end portion 13 of the seat cushion 11.

As shown in FIG. 7, the infant seat portion 21 covers the cushion frame 22, the pad upper portion 23 and the pad lower portion 24 which are mounted so as to sandwich the frame 22 from above and below, and the pad upper portion 23 from above. And a cushion cover 25. At both sides of the rear end of the cushion frame 22, both ends of a lower safety belt 28 that is stretched around the infant's waist are fastened.

The infant backrest portion 31 constituting the infant seat 20 is connected to the rear end of the infant seat portion 21 via link members 36, 36. The backrest 31 for infants is
As shown in FIG. 1, when the infant seat portion 21 is in the storage position, the infant seat portion 21 is in the seated position as shown in FIG. At a certain time, it stands up along the seat back 14 and can be erected to a standing position capable of holding the back of an infant sitting on the infant seat portion 21.

As shown in FIG. 1, at the base end side of the backrest 31 for infants, the engaged member provided on the rear end side of the seat 21 for the infant when the backrest 31 for infants stands up. Engagement portion 31 that can engage the mating portion 21a to make the infant backrest portion 31 self-support
a is provided.

As shown in FIG. 7, the backrest portion 31 for infants.
Is a back frame 32, a pad front portion 33 and a pad rear portion 34 that are mounted so as to sandwich the frame 32 from the front and rear, and a back cover 35 that covers the pad front portion 33 from above.
Consisting of Upper safety belts 38, 38, which are hung from the vicinity of the shoulder of the infant and connected to the lower safety belt 28, are fixed to the back frame 32.

The pad front portion 33 of the infant backrest portion 31 is
The backrest surface of the infant is formed, and it is formed in a curved surface shape with a recess to match the infant's small body size. The pad front portion 33 includes a pair of upper safety belts 3 respectively.
A pair of belt holes 33a, 33a, through which Nos. 8 and 38 pass, are formed in upper and lower two stages, respectively. The upper and lower two safety belts 38, 38 are formed through two upper and lower belt holes 33a, 33a depending on the infant's physique so that the degree of restraint of the infant can be adjusted. This is because

Also on the back cover 35, the belt holes 3 are formed at the same positions as the belt holes 33a of the pad front portion 33.
7, 37 are formed in upper and lower stages, and a belt holder member 37 is attached to each belt hole 37. In addition, as shown in FIGS. 8 and 9, lock mechanisms 40 that can be engaged with and disengaged from lock brackets 52 provided in a support member 50, which will be described later, are provided at both side ends of the infant backrest portion 31. There is. The lock mechanism 40 has a lock pin 41 that can be retracted to engage with and disengage from the engagement groove 53 of the lock bracket 52.

As shown in FIGS. 5 and 6, an ordinary seat back 14 that constitutes a vehicle seat 10 with an infant seat.
Is supported on the rear end side of the seat cushion 11, and a headrest 15 is provided on the upper end thereof. Further, on the backrest surface side of the seat back 14, an inverted U-shaped storage groove 1 is formed.
6 is formed, and a support member 50 that can be erected is provided at a position that fits in the storage groove 16 and that is smoothly connected to the backrest surface and a position that is inclined so as to be substantially horizontal. As shown in FIG. 1, the support member 50 is rotatably supported in the housing groove 16 at both base ends thereof via a pivot 51.

As shown in FIG. 6, when the support member 50 falls down substantially horizontally, the support member 50 becomes substantially parallel to the infant seat portion 21 in the sitting position, and the infant backrest portion 31 in the standing position.
It becomes a form that surrounds the child, leaving a sitting space for the infant. At this time, the lock pins 41 of the lock mechanism 40 at both end portions of the backrest 31 for baby are projected and engaged with the engagement grooves 53 of the lock brackets 52 on both inner sides of the support member 50. The seat 20 is restrained in the seating form shown in FIG. The lower safety belt 28 and the upper safety belts 38, 38 are connected on the front side of the infant seat 20 so that the seated infant's body can be held at four points of the terminals of each safety belt.

Next, the operation will be described. As shown in FIG.
The vehicle seat 10 with a child seat is usually in a form in which an adult is seated. When an infant is to be seated on the vehicle seat 10 with such an infant seat, the infant seat 20 incorporated in the seat cushion 11 may be converted into a usage pattern.

When using the infant seat 20, first,
As shown in FIG. 1, the infant backrest 31 which is in the forward tilted position and forms the seating surface of the normal seat cushion 11 is normally lifted in the overlapping direction along the seatback 14, that is, in the direction indicated by the arrow A. To wake up.

As shown in FIG. 2, while the seat back 14 is being erected, the infant seat portion 21 that is in the storage position, which is the bottom 12a of the recess 12 of the seat cushion 11, is also lifted, and the rear upper portion of the storage position is set. , That is, arrow B
Move in the direction shown in. At this time, the backrest part 3 for infants
1 is raised, so that the engaging portion 3 on the base end side
1a is an engaged portion 21a on the rear end surface side of the infant seat portion 21.
, So that the infant backrest portion 31 is restrained so that it cannot be tilted further backward in a state in which the infant backrest portion 31 stands up obliquely rearward and upward with respect to the infant seat portion 21. .

As shown in FIG. 3, the infant seat portion 21 is moved rearward and upward so that the front end side of the infant seat portion 21 is supported by the link members 26, 26 pivotally supported on both sides thereof, and the rear end side thereof. When the seat cushion 11 is displaced to the seated position on the rear end portion 13, the front and rear of the infant seat portion 21 are separately supported, and the strength and rigidity capable of sufficiently supporting the load when the infant is seated. Can be obtained.

As shown in FIG. 3, the infant backrest 31 is completely aligned with the seat back 14, and then the seat back 14 is pressed.
Of the support member 50 buried in the storage groove 16 of
That is, by pulling it down in the direction shown by the arrow C, the infant backrest portion 31 in the standing position, which is substantially parallel to the infant seat portion 21 in the sitting position as shown in FIG. 4, is left with the infant sitting space. It may be a surrounding form.

At this time, as shown in FIGS. 8 and 9, the lock pins 41 of the lock mechanism 40 at both end portions of the infant backrest portion 31 are projected, and the lock brackets on both inner sides of the support member 50 are provided. Since it engages with the engagement groove 53 of 52, the infant seat 20 is restrained in the seating form shown in FIG.
The infant can be seated.

The lower safety belt 28 is laid around the waist of the seated infant, and the upper safety belts 38, 38 are hung down from the vicinity of the infant's shoulder to lower the lower safety belt 28.
By connecting to, the infant's body can be held from four points on the terminals of each safety belt.

As a result, when the impact is applied, the weight of the infant is moderately distributed without being concentrated at one point.
It is possible to secure sufficient safety for infants. In addition, depending on the physical constitution of the infant, a pair of upper safety belts 38, 38 from either the upper or lower belt holes 33a, 33a.
The degree of restraint of the infant can be adjusted as appropriate by passing through.

An infant backrest 31 for holding the infant's back
Is a separate body from the normal seat back 14, and the backrest surface side of the backrest portion 31 for infants is formed in a curved surface shape having a dent to match the small body size of the infant.
The seated infant has a great lateral support feeling and can also improve the fit feeling.

On the other hand, the infant seat portion 21 in the sitting position is
Since the seated infant is supported at a position somewhat higher than the vicinity of the bottom 12a of the recess 12 of the seat cushion 11 for lowering the toes, the toddler can extend the toes sufficiently downward so as to have a natural posture. Furthermore, the infant can place his elbows and hands on the support member 50 in a substantially horizontal state, and the infant's body can be prevented from falling off the seat. The lower safety belt 28 and the upper safety belt 3
Along with 8, 38, sufficient safety can be ensured.

When the vehicle seat 10 with infant seat is used as an ordinary seat, first, the support member 5 is used.
After returning 0 to the position connected to the backrest surface of the seatback 14, while tilting the infant backrest portion 31 in the standing position forward, the infant seat portion 21 in the sitting position is moved forward and downward. And is stored in the bottom of the recess 12 of the seat cushion 11. Then, as shown in FIG. 5, the infant backrest portion 31 may be tilted forward so as to overlap the infant seat portion 21 moved to the storage position. At this time, the backrest portion 31 for infants forms the seat surface of the seat cushion 11.

Although the vehicle seat 10 with an infant seat according to the above-described embodiment is provided with the support member 50, the support member 50 is not always necessary and need not be provided in particular. In that case, a lock mechanism that can restrain the infant seat 20 in a sitting state may be provided separately.

[0039]

According to the vehicle seat with an infant seat according to the present invention, when the infant seat is in a seated state, the infant seat portion is supported separately from the front and the rear with a simple structure. Strength and rigidity can be obtained, and weight reduction and cost reduction are possible. Moreover, the infant seat in the seated position is supported at a position higher than the vicinity of the bottom of the recessed portion of the seat cushion where the seated infant lowers its toes. It can be stretched to a comfortable seat.

Further, since the backrest for infants is a separate body from a normal seat back, the backrest surface side of the backrest for infants can be formed in a shape that matches only the small physical size of the infant. As a result, it is possible to improve the lateral support and fit of the seated infant.

[Brief description of the drawings]

FIG. 1 is a side view showing a vehicle seat with an infant seat according to an embodiment of the present invention in a normal sitting state.

FIG. 2 is an operation explanatory view showing a process of changing the form of the vehicle seat with the infant seat according to the embodiment of the present invention.

FIG. 3 is a side view showing that the infant seat of the vehicle seat with infant seat according to the embodiment of the present invention is in a sitting state.

FIG. 4 is a side view showing a state in which the infant seat of the vehicle seat with an infant seat according to the embodiment of the present invention is in a seated state and further the support member is tilted to a substantially horizontal position.

FIG. 5 is a perspective view showing a vehicle seat with an infant seat according to an embodiment of the present invention.

FIG. 6 is a perspective view showing that the infant seat of the vehicle seat with infant seat according to the embodiment of the present invention is in a seated state.

FIG. 7 is an exploded perspective view of the infant seat of the vehicle seat with the infant seat according to the embodiment of the present invention.

FIG. 8 is a perspective view showing a relationship between a backrest portion for a baby and a support member of a baby seat that constitutes a vehicle seat with a baby seat according to an embodiment of the present invention.

FIG. 9 is an operation explanatory view showing the engagement / disengagement relationship between the lock mechanism provided on the infant backrest portion of the infant seat constituting the vehicle seat with the infant seat according to the embodiment of the present invention and the support member. is there.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Vehicle seat with infant seat 11 ... Seat cushion 12 ... Recessed portion 14 ... Seat back 20 ... Infant seat 21 ... Infant seat 26 ... Link member 31 ... Infant back 50 ... Support member

Claims (1)

(57) [Claims] 1. A vehicle seat with an infant seat in which a seat back is supported on a rear end side of a seat cushion, and an infant seat portion and an infant backrest portion constituting an infant seat are incorporated in the seat cushion. In the above, the seat cushion is provided with a recessed portion substantially in the center thereof, and a storage position that fits in the bottom of the recessed portion through a link member that pivotally supports the infant seat portion on both sides of its front end, and a storage position of the storage position. The child's back is moved so as to move rearward and upward, the front end side of which is supported by the link member and the rear end side of which is displaceable to a seating position which is supported while resting on the rear end portion of the seat cushion. When the infant seat is in the stowed position, the leaning portion overlaps the stowage to form a seating surface of the seat cushion, and the seat back when the infant seat is in the sitting position. Stand up along Te, capable raised or lowered to the upright position capable of retaining the back of the infant seated on 該幼 infant seat, infant seat with a vehicle seat, characterized in that coupled to the rear end of the infant seat.