JP3272169B2 - Vehicle 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 vehicle seat which can be rearranged into a seat with an infant seat having a seat at a required height by a simple operation only when necessary using a part of a seat back. Things.

[0002]

2. Description of the Related Art Japanese Patent Laid-Open Publication No. Sho 52-59421 and Japanese Utility Model Laid-Open Publication No. Sho 62-28642 disclose a vehicle seat which can be replaced with a seat with an infant seat only when necessary by using a part of a seat back. As disclosed in Japanese Utility Model Application Laid-Open No. Sho 62-60437, various proposals have been made, but when any of these devices is rearranged with an infant seat, a sufficient amount of space is provided on the seating surface side of the extracted infant seat. Since there is no thick cushion layer, there is a problem that the sitting comfort is extremely poor.

In order to solve such a drawback, the present applicant has folded an upper cushion and a lower cushion of a seat back having a concave surface for fitting a cushion body on the surface thereof until the rear surfaces thereof face each other. The cushion body connected as much as possible is in a state where the upper cushion and the lower cushion are extended and housed in the concave portion, and the upper cushion and the lower cushion are folded and protruded from the surface of the seat back as a baby seat. Developed a vehicle seat that was incorporated to take two aspects of the state,
It has already been published as Japanese Utility Model Laid-Open No. 6-12169.
However, in the prior application, an inward guide rail is provided on each of the inner surfaces of both sides of the concave portion for fitting the cushion body, and the upper and lower cushions which can be folded until the back surfaces face each other on the guide rail via a locking pin. Because it is attached, there is a problem that it is dangerous to put your finger etc. because the guide rail is in a place where it touches the infant's hand,
Further, since a large force is required for pulling out and storing the upper and lower cushions, there is still a problem that the work of reassembling the seats requires excessive labor and labor.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems and provides a cushion layer having a sufficient thickness on the seating surface side of an infant seat pulled out when used as an infant seat. Is provided to provide a very comfortable sitting comfort, and the guide groove is not exposed, so that it is highly safe for infants, and furthermore, the operating load when pulling out and storing the upper and lower cushion bodies The present invention has been completed for the purpose of providing a vehicle seat which is small in size and capable of extremely easily performing a seat rearrangement operation.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a vehicle seat according to the present invention is provided with an upper cushion and a lower cushion with respect to a seatback having a recess for fitting a cushion body on a surface thereof. A cushion body connected so as to be foldable until the back faces thereof face each other, a state in which the upper cushion and the lower cushion are extended and housed in a concave portion, and a case where the upper cushion and the lower cushion are folded and the seat back is folded. In a vehicle seat incorporated so as to take two forms in a state of being protruded from the surface as an infant seat, a backboard having guide grooves formed on both side surfaces is buried inside the recess and a lower portion is provided at a lower end thereof. with the lower end of the cushion to pivotally coupled via a hinge member, provided with an upper end of the upper cushion on the opposite sides engaging It is characterized in that the slidably is guided by the guide groove with a.

[0006]

In a vehicle seat constructed as described above, the interior of the concave portion is normally buried in a cushion body composed of an upper cushion and a lower cushion, so that the vehicle seat has the same appearance as a normal vehicle seat and has a normal adult seat. Used as
When seating an infant, the cushion body is folded from the inside of the seat back until the upper cushion and the lower cushion face each other, and used as an infant seat, but it is used as an infant seat. In such a case, a cushion layer having a sufficient thickness is provided on the seating surface side, so that excellent sitting comfort can be exhibited. Furthermore, since the guide groove for guiding the upper cushion is provided on both sides of the backboard so as not to be exposed, it is extremely safe without touching the infant's hand, and operation such as pulling out the upper and lower cushions is performed. The load is extremely small and excellent operability can be exhibited.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. The drawings show an example in which the present invention is applied to a rear seat of an automobile. In the drawings, reference numeral 1 denotes a seat back, and 2 denotes a concave portion for vertically fitting a cushion body formed on the surface of the seat back 1. Reference numeral 3 denotes a back board buried in the recess 2 and 4 denotes guide grooves formed on both sides of the back board 3. A cushion body 5 that can be folded up and down until the back surfaces of the upper cushion 5a and the lower cushion 5b face each other at the center is accommodated in the recess 2.

The cushion body 5 is composed of an upper cushion 5a and a lower cushion 5b manufactured by attaching a cushion member to two plate bodies 3a and 3b rotatably connected by a hinge 6, respectively. As shown in FIG. 2, the lower end of the plate 3b is pivotally connected to the lower end of the backboard 3 via a hinge member 7, while the upper end of the plate 3a is connected to both ends thereof. Is guided in the guide groove 4 via the engaging element 8a so as to be vertically movable, so that the cushion 5
Are stored in the recessed portion 2 of the seat back 1 in an extended state, and the upper cushion 5a and the lower cushion 5b are folded until the back surfaces thereof face each other to form an infant seat. . In the embodiment, a link 8 is provided at the upper end of the plate 3a, one end of which is rotatably connected to the plate 3a and the other end of which has an engaging element 8a which slides freely in the guide groove 4. The operation load at the time of pulling out and storing the cushion body 5 is extremely small, and the work of changing the seat can be easily performed.

In such a structure, the interior of the concave portion 2 is normally buried in a cushion body 5 composed of an upper cushion 5a and a lower cushion 5b as shown in FIG. Is used as a seat for a general adult. On the other hand, when an infant is to be seated, an intermediate portion of the cushion body 5 in the recess 2 of the seat back 1 is pulled forward to form an upper cushion 5a. The cushion body 5 is folded into two around the hinge 6 until the back surfaces of the lower cushion 5b face each other, so that the lower cushion 5b can be used as an infant seat. In this case, the infant seat is formed by pulling the intermediate portion of the cushion body 5 toward the front side as shown in FIG.
Since the links 8 on both sides of the upper end of the lower cushion 5a may be slid while being guided into the guide grooves 4, the lower end of the lower cushion 5b may be rotated about the hinge member 7, so that it is extremely easy to operate with a small operation load. Can be done. Also,
As shown in FIG. 5, it is also possible to adjust the seat belt 9 so that it can be used under optimum conditions according to the physique of the infant.

In addition, since a cushion member having a sufficient thickness is provided on the seating surface side of the infant seat, excellent sitting comfort can be exhibited. On the other hand, when the cushion body 5 is stored in the seat back 1, Needless to say, the cushion member having a sufficient thickness acts so as not to impair the feeling of use as a seat. Further, the guide groove 4 for guiding the upper cushion body 5a is
Since it is formed on both sides and is not directly exposed, it is possible to prevent an infant from putting a finger, etc., and it is excellent in safety.

[0011]

As is clear from the above description, in the present invention, when used as an infant seat, a sufficiently thick cushion layer is provided on the seating surface side of the infant seat pulled out. A comfortable sitting comfort can be exhibited, and in particular, the guide grooves are formed on both side surfaces and are provided in the concave portions so that the guide grooves face the side wall surfaces of the concave portions, so that the guide grooves are not exposed. In addition to the high safety for infants, the backboard does not collapse the cushion body into the recess more than necessary, so the appearance is good, and the operation load when pulling out and storing the upper and lower cushion bodies is small, and the seat The rearrangement work can be performed very easily. Therefore, the present invention greatly contributes to industrial development as a vehicle seat that has eliminated the conventional problems.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a backboard.

FIG. 3 is a perspective view showing a state where the cushion body is stored in a seat back.

FIG. 4 is a perspective view showing a state where the cushion body is pulled out from the seat back.

FIG. 5 is a perspective view showing a state where the child seat is being used.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seat back 2 Depression 3 Back board 4 Guide groove 5 Cushion body 5a Upper cushion 5b Lower cushion 8a Engagement element

Claims (2)

(57) [Claims] An upper cushion (5) is provided on a seat back (1) having a recess (2) for fitting a cushion body on a surface thereof.
a) and a lower cushion (5b), a cushion body (5) that is foldably connected until the back faces thereof face each other, and the upper cushion (5a) and the lower cushion (5b) are extended to form a recess (2). And the upper cushion (5a)
And the lower cushion (5b) are folded back and the seat back
(1) a vehicle seat incorporated so as to take two aspects of a state of being protruded from the surface as an infant seat,
A guide groove (4) is buried in the recess (2), and a back board (3) having (4) formed on both sides is buried, and a lower end of a lower cushion (5b) is hinged to a lower end of the back board (5b ). And an upper end of the upper cushion (5a) is slidably guided in the guide groove (4) by engagement members (8a) provided on both sides of the upper cushion (5a). Vehicle seat. 2. The vehicle seat according to claim 1, wherein the engaging member is provided inward at a tip of a link attached to both upper end portions of the upper cushion.