JPH07101277A - Vehicular seat - Google Patents

Abstract

PURPOSE:To provide a vehicular seat simple in constitution and low-priced while being provided with a child seat usable also as an arm rest. CONSTITUTION:In a child seat assembly folded and enclosed in the seat back of a vehicular seat, the cushion frame 8 of a child seat cushion and the back frame 12 of a child seat back are pivotally supported by a pivot 14, and an auxiliary cushion formed of slide pans 16 is assembled expandably in the vehicle width direction to a main cushion, formed of the cushion pant 9 of the child seat cushion, by bushes 15 and slide bars 17 engaged slidably in the vehicle width direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat provided with a child seat which can be stored in a seat back.

[0002]

2. Description of the Related Art Child seats in conventional vehicles are disclosed in Japanese Patent Publication No. 1-502507 and Japanese Patent Laid-Open No. 2-106.
As illustrated in Japanese Patent No. 448, a child seat is installed on a seat cushion, and an arm rotates a headrest forward to restrain an infant on the child seat, or a child seat can be folded and stored in a seat back. However, in any case, the structure of the entire seat back must be a special specification different from a normal seat back without a child seat, and therefore, a vehicle seat equipped with a child seat However, the inconvenience of becoming expensive was inevitable.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle seat having a child seat which can also be used as an armrest and which has a simple structure and is inexpensive.

[0004]

In order to achieve this object, a vehicle seat according to the present invention is accommodated in the seat back in a folded state with a lower part pivotally attached to the seat back, and the seat back. It has a child seat assembly that can be rotated from the inside onto the seat cushion,
The lower part of the child seat back in the child seat assembly is pivotally supported by the child seat cushion, and the child seat cushion is composed of a main cushion and an auxiliary cushion arranged on one side or both sides of the main cushion, and a connecting member extending in the vehicle width direction and the same. A guide member that engages with the connecting member and guides the connecting member in the vehicle width direction is installed between the main cushion and the auxiliary cushion, and relative to the main cushion by relative displacement of the connecting member and the guide member. The auxiliary cushion is configured to expand and contract in the vehicle width direction.

[0005]

In other words, when the child seat assembly in the folded state is rotated from the inside of the seat back onto the seat cushion, and the child seat back pivotally supported by the child seat cushion is raised about its pivot, the main cushion of the child seat cushion. Since the auxiliary cushion can be expanded and contracted in the vehicle width direction with respect to the main cushion by the relative displacement of the connecting member and the guide member installed between the auxiliary cushion and the auxiliary cushion, the auxiliary cushion extends from the main cushion in the vehicle width direction. By doing so, a seat cushion with a sufficient width as a child seat can be formed, while the auxiliary seat cushion is reduced toward the main cushion in the vehicle width direction, and the child seat cushion and the child seat back are overlapped to form a seat cushion. By placing on the Deployment it can be easily configured the armrest moderate width.

[0006]

Embodiments of the present invention shown in the drawings will be specifically described below. In the rear seat 1 of the vehicle shown in FIGS. 1 and 2, a recess 4 is formed in the center of a seat back 3 arranged at the rear of the seat cushion 2, and a folded child seat assembly 5 is housed in the recess 4. A center sheet is formed.

The child seat assembly 5 is composed of a child seat cushion 6 and a child seat back 7, as shown in detail in FIGS.
Cushion frame 8 for child seat cushion 6
A cushion pan 9 and left and right hinge plates 10 are fixed to the seat, and a support shaft 11 projecting laterally from each hinge plate 10 is rotatably attached to a side wall of a seat back central recess 4 while a child seat back. The hinge plates 13 fixed to both lower sides of the back frame 12 in 7 and the hinge plate 10 of the cushion frame 8 are connected by a pivot shaft 14 extending in the vehicle width direction.

Further, tubular bushes 15 extending in the vehicle width direction are fixed to both side walls of the cushion pan 9 at intervals in the front-rear direction, while the cushion pan 9 has substantially L-shaped cross sections on both sides. A slide pan 16 is arranged, and slide bars 17 that also extend in the vehicle width direction are fixed to the inner wall surface of the slide pan 16 at intervals in the front-rear direction. The slide bars 17 are slidable in the tubular bush 15. And the slide pan 16 is guided in the vehicle width direction, and a cushion material 18 that is relatively thin and foldable in the vehicle width direction is attached to the upper surfaces of the cushion pan 9 and both slide pans 16. A cushion material 19 is also attached to the lower surface of the cushion pan 9.

For this reason, as shown in FIG. 4, both the slide pans are guided by the tubular bush 15 until the stopper 20 fixed to the end of the slide bar 17 contacts the inner end surface of the tubular bush 15. When the cushions 16 are pulled outward, the cushion material 18 extends in the vehicle width direction, so that the main cushions 21 above and below the cushion pan 9 are provided.
And the auxiliary cushion 22 on each slide pan 16 form the child seat cushion 6, and FIG.
As shown in FIG. 3, when the slide pans 16 are pushed inward by the tubular bushes 15 until the inner wall surfaces of the slide pans 16 contact the outer end surface of the tubular bushes 15, the slide pans 16 are pushed inward. The inner end of the cushion is displaced inward along the upper surface of the cushion pan 9, and the cushion material 18 is contracted and folded in the vehicle width direction.

As shown in FIGS. 1 and 2, from the state in which the child seat assembly 5 is housed in the central recess 4 of the seat back 3, the child seat assembly 5 is rotated forward around the support shaft 11, When placed on the seat cushion 2 as shown in FIG. 6, the child seat assembly 5 can function as an armrest for the left and right seats of the rear seat 1, and from the state of FIG. Back 7
The upper part of the child seat cushion 7 against the child seat cushion 6 as shown in FIG.
And the left and right slide pans 1 from the child seat cushion 6 in the state shown in FIG.
By pulling out 6 to the outside and forming auxiliary cushions 22 on the left and right of the main cushion 21 as shown in FIG. 4, the child seat cushion 6 having a sufficient width as a child seat can be obtained.

Next, from the child seat cushion 6 in the state shown in FIG. 4, the left and right slide pans 16 as described above.
5 inward, fold the cushion member 18 onto the cushion pan 9 and both slide pans 16 as shown in FIG. 5, and stack the child seat back 7 on the child seat cushion 6 to form an armrest as shown in FIG. Since its width is smaller than that when it is used as a child seat, the width as an armrest does not become excessively large, and it is possible to easily secure a sufficient width for the left and right seats of the rear seat 1.

That is, the child seat assembly 5
Has a structure suitable for each of the armrest and the child seat, and the auxiliary cushion 22 is different from the main cushion 21 for switching to the respective applications.
The structure for extending and contracting the vehicle seat in the vehicle width direction is very simple, and the device can be easily configured by replacing the armrest portion of the conventional vehicle seat with armrest with the child seat assembly 5. ,
At this time, since it is not necessary to change the specifications of the seat back itself, there is an advantage that a vehicle seat with an armrest incorporating a child seat can be provided at low cost.

In the above embodiment, the auxiliary cushions are installed on the left and right sides of the child seat cushion, but it is also possible to install the auxiliary cushions on only one of the left and right sides, or the main cushion. It goes without saying that various modifications can be made to the structure of the connecting member and the guide member arranged between the auxiliary cushion and the auxiliary cushion, such that the relative engagement state is reversed from that of the above embodiment. .

[0014]

In the vehicle seat according to the present invention, when the child seat assembly is arranged on the seat cushion and the child seat back is triggered, the relative displacement of the connecting member and the guide member assists the main cushion. Since the cushion can be expanded and contracted in the vehicle width direction, by extending the auxiliary cushion in the vehicle width direction from the main cushion, it is possible to form a seat cushion with a sufficient width as a child seat and reduce the auxiliary cushion to the main cushion. , The child seat cushion and the child seat back can be overlapped to easily form an armrest with an appropriate width, which is convenient for each application, and the main cushion and auxiliary cushion can be easily expanded and contracted. Ah At the same time, such as by replacing the armrest portion of a conventional seat armrests vehicle and the child seat assembly, the seat incorporating a child seat vehicle can be provided at low cost.

[Brief description of drawings]

FIG. 1 is a schematic front view of an embodiment of the present invention.

FIG. 2 is a schematic side view of the above embodiment.

FIG. 3 is a partially exploded perspective view of a main part of the above embodiment.

FIG. 4 is an enlarged vertical cross-sectional view of an essential part of the above embodiment.

FIG. 5 is an explanatory view of the operation of the above embodiment.

FIG. 6 is an explanatory view of the operation of the above embodiment.

FIG. 7 is an explanatory view of the operation of the above embodiment.

[Explanation of symbols]

 1 Rear Seat 2 Seat Cushion 3 Seat Back 5 Child Seat Assembly 6 Child Seat Cushion 7 Child Seat Back 9 Cushion Pan 11 Spindle 14 Spindle 15 Tubular Bush 17 Slide Bar 21 Main Cushion 22 Auxiliary Cushion

Claims (1)

[Claims] 1. A child seat assembly having a lower part pivotally attached to a seat back, housed in the seat back in a folded state, and rotatable on the seat cushion from inside the seat back. A lower part of the child seat back in the body is pivotally supported by the child seat cushion, and the child seat cushion is composed of a main cushion and an auxiliary cushion arranged on one side or both sides thereof, and a connecting member extending in the vehicle width direction and the connecting member. A guide member that engages and guides the connecting member in the vehicle width direction is provided between the main cushion and the auxiliary cushion, and the relative displacement of the connecting member and the guide member assists the main cushion. A vehicle seat configured such that the cushion expands and contracts in the vehicle width direction. To.