JP3814088B2 - Retractable child seat for vehicle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a retractable child seat for a vehicle that is fixed to be able to be stored in a vehicle seat.
[0002]
[Prior art]
Child seats that can be easily attached to and detached from existing seats in automobiles are widely used. Such child seats can be easily removed when not in use, but they are bulky and difficult to place, so they can be pre-assembled into existing seats and stored normally on the back side of the seat back so that adults can sit on them. Various proposals have been made.
[0003]
For example, a child seat is formed by forming a child seat on the back side of the seat back separator whose lower end is pivotally supported so that a part of the seat back can be moved forward independently of the rest, and the seat back separator is moved forward. The ones that appear are known (see public relations in Japanese Utility Model Publication No. 2-21052).
[0004]
[Problems to be solved by the invention]
However, in such a retractable child seat, the child seat back that protrudes substantially perpendicularly to the back of the existing seat back rotates in a large arc according to the rotation of the seat back separator. Become. For this reason, in order to prevent the luggage in the rear trunk behind the seat back from hindering the rotation of the child seat back, it is necessary to consider, for example, securing a dedicated space in the rear trunk in advance. In addition to being reduced in size, there was an inconvenience such as poor usability.
[0005]
On the other hand, although it has been devised that it is folded so that the trunk volume is not sacrificed and stored in the storage space inside the seat back, it is necessary to configure the folded state to be within the thickness of the seat back, In addition to the cushion pad where the infant sits, the cushion pad located on the surface side in the retracted state cannot be formed to a sufficient thickness, which makes it uncomfortable for adults.
[0006]
The present invention has been devised to eliminate such disadvantages of the prior art, and its main purpose is to reduce the storage state without impairing the sitting comfort for both infants and adults in the storage state. It is to provide a child seat configured to be able to be converted.
[0007]
[Means for Solving the Problems]
In order to achieve such an object, in the present invention, the configuration of the vehicle retractable child seat is configured such that the lower end is formed by the first hinge portion 4 so that a part of the seat back 3 can be moved forward independently of the remaining portion. A seat back separator 5 that is pivotally supported by the seat 1 and forms a child seat seat 10 on the upper side when the vehicle is tilted forward, and a base end of the seat back separator so that the seat back separator can be raised and lowered. A seat back for a child seat pivotally attached to a second hinge portion 6 formed in a pair on the left and right sides on the back side of the portion, and the second hinge portion is located above the seat surface for the child seat when in use. A side support 14 that protrudes and is disposed in front of the first hinge portion to support the occupant's waist from both the left and right sides is formed .
[0008]
According to this, since the child seat back is rotated and stored in a state where it is turned down along the back side of the seat back separator, the space required for the rotation and the storage state can be reduced. In addition, when the child seat is formed on the back side of the seat back separator, there is no need to change the cushion pad built in the front side, so the same comfort as the rest of the seat back is ensured in normal use. Can do.
[0009]
Then, it is only necessary to secure a space for receiving the portion protruding from the back surface of the seat back separator, and there are almost no restrictions on the form in the stored state. Therefore, side supports (first to third side supports 12, 14, and 15 in the embodiment of the invention) that protrude to support the occupant's body from both the left and right sides are provided for the seat back separator and the child seat back. Preferably, it is formed on one or both of the left and right side edges, and according to this, the occupant's support is improved with respect to the lateral force acting when the vehicle turns, and the comfort of the infant is improved.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.
[0011]
FIG. 1 shows a use state of a retractable child seat for a vehicle constructed according to the present invention. This vehicular retractable child seat 1 is provided in a rear seat 2 of an automobile, and is formed by cutting out a portion in the vicinity of the left end of a seat back 3 extending in the left-right direction of a vehicle body into a square shape, and is paired with left and right. A seat back separator 5 pivoted on the formed first hinge part 4 and a lower end pivotally attached to a second hinge part 6 protruding from the base end part of the seat back separator 5 and formed in a pair on the left and right And a child seat back 7. An infant sits on the child seat 1 as shown in FIG.
[0012]
The first hinge portion 4 of the seat back separating body 5 is supported by a vehicle body side member (not shown) extending from the rear end portion of the seat cushion 8, and the seat back separating body 5 that is moved forward with this as a fulcrum is It simply overlaps the upper surface of the cushion 8. The seat back separator 5 is brought into contact with the seat cushion 8 when the seat back separator 5 is moved forward, and exposed to the surface 5a of the seat back separator 5 exposed at the normal position shown in FIG. Built-in cushion pad.
[0013]
On the other hand, the child seat back 7 pivotally supported by the second hinge portion 6 of the seat back separator 5 has a forward position shown by a solid line in FIG. It can be tilted by drawing a trajectory (two-dot chain line) shown in the figure between the standing position indicated by a line (two-dot chain line). Since the second hinge portion 6 is provided so as to be located slightly forward above the first hinge portion 4 when the seat back separating body 5 is moved forward, the second half of the child seat back 7 is The back separating body 5 comes out and is appropriately stored in the opened hole 9. In this standing position, the child seat back 7 is fixed to the seat back 3 with its upper edge locked to the upper inner periphery of the hole 9.
[0014]
As shown in FIG. 2, a seat surface 10 for a child seat is formed on the side facing the upper side of the seat back separator 5 that has been tilted forward. The footrest 11 for prevention is formed in a state where it is one step lower than the child seat surface 10. As a result, the infant's shoes can be seated without being removed, and the usability is improved.
[0015]
A pair of first side supports 12 bulging upward are formed on the left and right side edge portions of the child seat surface 10. A pair of second hinge portions 6 formed on the left and right sides of the rear end of the seat back separator 5 are projected above the child seat surface 10 when the seat back separator 5 is tilted forward, and are pivotally attached thereto. A second side support 14 is formed together with a lower end portion of the child seat back 7. A pair of third side supports 15 are formed on the left and right side edges of the child seat back 7 so as to protrude forward from the middle in the vertical direction to the upper end.
[0016]
Therefore, when the infant sits on the child seat 1 as shown in FIG. 2, the first side support 12 provided on the seat back separator 5 covers the infant's thigh, the seat back separator 5 and the child seat back 7. The second side support 14 provided at the pivotally attached portion of the child supports the infant's waist, and the third side support 15 provided at the child seat back 7 supports the infant's head from both the left and right sides. Since the body can be appropriately held, it is possible to realize excellent riding comfort.
[0017]
The three pairs of side supports 12, 14, 15 do not collide with each other when the child seat back 7 is folded on the seat back separator 5 (see FIG. 3). For this reason, the storage state can be reduced in size.
[0018]
On the other hand, a T-shaped pad 13 is provided to support the waist and abdomen of an infant seated on the child seat 1 from the front. The pad 13 has a locking protrusion 13 a at its lower end inserted and locked into the insertion port provided at the center of the child seat seat surface 10 of the seat back separator 5, so that the pad 13 is separated from the seat back separator 5. It is supposed to be fixed.
[0019]
One end of a pair of shoulder belts 16 is connected to the upper portion of the pad 13. The pair of shoulder belts 16 are inserted into belt insertion holes 17 that are opened one by one in the upper and lower directions in the child seat back 7, and the other end is connected to the lower surface of the rear tray panel 21 behind the seat back 3. Is connected to a retractor device (hereinafter referred to as ELR) 22 with an emergency automatic locking device.
[0020]
Accordingly, the load acting on the pad 13 in the event of an emergency is transmitted from the locking protrusion 13a of the pad 13 to the vehicle body via the first hinge portion 4 of the seat back separating body 5, while the load acting on the shoulder belt 16 is , Is transmitted to the vehicle body via the ELR 22. As shown in FIG. 5, the ELR 22 may be fixed on the back side of the child seat back 7 with increased holding strength. Further, when the pair of shoulder belts 16 is removed together with the pad 13 and the adult seat belt 20 shown in FIG. 1 is used instead, the child seat 1 can be used as a booster seat for school children.
[0021]
In order to store the child seat 1 configured as described above, first, the pad 13 fixed to the seat back separator 5 is removed from the seat back separator 5 as shown in FIGS. The lock between the child seat back 7 and the seat back 3 is released. Then, as shown in FIG. 4, the child seat back 7 is rotated around the second hinge part 6 as a fulcrum and once superposed on the seat back separator 5, and then the seat back separation is performed using the first hinge part 4 as a fulcrum. By rotating the body 5 rearward and fitting the seat back separating body 5 into the hole 9 of the seat back 3, as shown in FIG. 3, the surface 5a is exposed and can be returned to a normal adult seat.
[0022]
In this retracted state, the child seat back 7 is in a state of protruding into the rear trunk 23 behind the seat back 3, and rearward by a lock mechanism (not shown) provided on the second hinge 6. It is held so as not to fall. If the operation opposite to the above storing operation is performed, it is possible to easily return to the use state shown in FIG. 1 and FIG.
[0023]
【The invention's effect】
Thus, according to the present invention, since the child seat back is stored in a folded state along the back side of the seat back separator, the dedicated space to be secured behind the existing seat back is reduced. And has a great effect on space efficiency. In addition, since it is not necessary to make any changes to the cushion pad on the front surface side, it is possible to ensure the same sitting comfort as the rest of the seat back in normal use. In addition to this, it is very easy to change the form between the storage state and the use state, and the convenience is improved. Furthermore, since the movable mechanism for folding is very simple, it is easy to make it highly rigid, and it is possible to prevent a discomfort due to wobble or the like and to make a child seat with high reliability.
[0024]
In addition, since there are almost no restrictions on the form in the stowed state, it has a high degree of design freedom, and the side support can be formed in a desired shape, and a sufficient gap is provided between the seat back separator and the child seat back. Can be taken. For this reason, the infant pad can be formed thick, and the shoulder belt can be prevented from wrinkling. Therefore, a great effect can be obtained in improving the habitability and merchantability. Furthermore, the seat back separation can be almost completely closed with the seat back for child seats in the stored state as well as in the used state, so it looks good and isolates the rear trunk from the passenger compartment. It is suitable for a three-box vehicle where it is desirable.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a retractable child seat for a vehicle constructed according to the present invention.
FIG. 2 is a side view of the retractable child seat for a vehicle shown in FIG.
FIG. 3 is a side view showing a storage state.
FIG. 4 is a side view showing a state during the storing operation.
FIG. 5 is a side view showing another embodiment regarding the mounting position of the ELR.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vehicle retractable child seat 2 Rear seat 3 Seat back 5 Seat back separation body 7 Child seat back 12 First side support 14 Second side support 15 Third side support

Claims (1)

A seat back separator that is pivotally supported on the seat by the first hinge portion so that a part of the seat back can be moved forward independently of the remaining portion, and forms a child seat seat surface on the upper side when the vehicle is folded forward;
A seat back for a child seat pivotally attached to a second hinge portion formed in a pair on the left and right sides on the back side of the base end portion of the seat back separator so that the seat back separator can be raised and lowered. And
The second hinge portion protrudes above the seat surface for the child seat and is disposed in front of the first hinge portion in a use state to form a side support that supports the waist of the occupant from both the left and right sides. A retractable child seat for a vehicle characterized by the above .

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