JPH0820270A - Child seat - Google Patents

Abstract

PURPOSE:To improve the usability of a seat back in the state of enclosing a child seat by locking the claw piece of a back part to the stopper pin of a child seat cushion part so as to fix the cushion part and back part of the child seat to the seat back part. CONSTITUTION:From the state of being used as a child seat, an operating lever 3 is operated to release the engaged state of the locking part of the operating lever 3 with a stopper pin 12, and then a cushion part 1 is erected and enclosed in the storage recessed part A of a seat back SB, along with a back part 2. Since the stopper pin 12 of the cushion part 1 is positioned at the lower end part of the oblong hole 32 of a bracket 3 and engaged with the locking part of the operating lever 30, the cushion part 1 is locked to hold the storage state without falling forward by the sudden stop or the like of an automobile. The cushion part 1 and the back part 2 become a part of the seat back SB and can be used by an adult as a part of the seat back SB.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a child seat (seat for a child) provided in a vehicle seat (seat), and more specifically, a part of a seat back (backrest part) can be used as an armrest, or a child seat. Regarding what you get.

[0002]

2. Description of the Related Art A conventional child seat is disclosed in, for example, Japanese Patent Application Laid-Open No. 56-28023.
Some seat recesses are provided in the seat back, and the seat cushion (seat portion) / armrest of the child seat (hereinafter, abbreviated as child seat / armrest) is stored in the recess.

By storing the child seat / armrest in the recess, the child seat / armrest constitutes a part of the seatback and can be used as an adult seatback.

The child seat / armrest is a double cushion body that is connected by a hinge and has an arm attached to each cushion body.
A slide provided at the tip of this arm is connected to a guide shaft in a pair of left and right vertical grooves formed in the vehicle body that supports the seat back recess.

Therefore, this conventional product serves as an armrest by folding and stacking a nike cushion on a seat cushion (for adults), and also serves as a child seat cushion. The seat back of the child seat uses the recessed portion of the seat back (for adults).

[0006]

The above conventional product is composed of upper and lower nicked cushion bodies in which the child seat and armrests are connected by a hinge, and the arms of each cushion body can slide vertically on the guide shaft of the vehicle body. Installed on. Therefore, in the retracted state and the state of use as a child seat and armrest,
Since the armrest that also serves as a child seat moves vertically due to the vibration of the vehicle, there is a problem that the adult seatback formed of the back of the child seat formed by storing the child seat or the usability as a child seat or armrest is impaired.

In addition, since the body of the child is stored in the recess of the seat back, the visibility of the child is poor, and the upper half of the body of the child is supported by the recess, so that the cushioning property is impaired.

Therefore, it is an object of the present invention to improve the usability of a child seat or a seat back in which the child seat is stored, in a child seat using a part of the seat back.

[0009]

A child seat according to the present invention for achieving the above object is stored in a storage recess provided in a seat back, constitutes a part of the seat back, and is mounted on a seat cushion. It is composed of a child seat cushion part and a child seat back that are arm rests by stacking them, and the child seat cushion part and the child seat back part are pivotally mounted respectively on brackets fixed to the seat back side, and the child seat back is in an upright state. And a lock device for holding the retracted state of the child seat cushion portion. The lock device includes a stopper pin provided on the child seat cushion, an arcuate elongated hole into which the stopper pin of the bracket is slidably inserted, and the stopper. An operation lever with locking portions for locking the emissions, characterized by comprising a claw piece which is fixed to the child seat back side for engaging the stopper pin.

[0010]

The child seat cushion portion and the child seat back portion are fixed to the seat back side by hooking the pawl piece of the child seat cushion portion to the stopper pin of the child seat cushion portion so that the child seat cushion portion is substantially horizontal and the child seat The back portion is held upright.

In this state, when the child seat cushion portion is lifted upward, the lock is released and the child seat cushion portion is stored together with the child seat back portion, and the stopper pin of the child seat cushion portion is locked by the locking portion of the operating lever. The child seat cushion is locked.

[0012]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a state in which a child seat is provided in the center of an adult seat back (SB), and FIG. 2 shows the same use state. In the figure, (1) is a child seat cushion part (hereinafter abbreviated as cushion part), and (2) is A child seat back portion (hereinafter abbreviated as a back portion), (1A) indicates a folding portion foldably connected to the cushion portion (1), and (SC) indicates a seat cushion.

A seat belt (B) is inserted through the cushion portion (1) and the back portion (2), and the end portions of each seat belt (B) are fixed to the vehicle body side. The lower portion of both the cushion portion (1) and the back portion (2) is fixed in the storage recess of the seat back (SB) (3).
Is attached to the seat back (S
It is stored upright in the storage recess of B). During this storage, the cushion portion (1) is locked by the locking portion of the operation lever (30) of the lock device, and the stored state is maintained.

With the cushion portion (1) and the back portion (2) stored in the seat back (SB), the front surface of the cushion portion (1) is substantially the same as or slightly protrudes from the front surface of the seat back (SB). The cushion portion (1) and the back portion (2) are formed to such an extent that the cushion portion (1) becomes a part of the seat back (SB) in this stored state, and an adult becomes a part of the seat back. use.

The above-mentioned back portion (2) is a seat back (S
It is formed separately from the backboard (5) of B) and is supported by the backboard (5). Although the illustrated seat back (SB) is fixed to the wall surface (6) of the vehicle body, it may be attached to the vehicle body or the seat cushion (SC) so as to be tiltable by a reclining device.

FIG. 3 is an exploded view of the essential part of the present invention, in which (A) is a storage recess of the seat back (SB) for storing the back portion (2) and the cushion portion (1). The brackets (3) and (3A) are fastened to the left and right of the lower end of the storage recess (A). The lock device includes stopper pins (12) (12) provided on the cushion portion (1),
The long hole (32) provided in the bracket (3), the operation lever (30) with a locking portion, and the claw piece (4) provided in the back portion (2)
It consists of and.

The left and right brackets (3) and (3A) have through holes (31) and (31) through which the pivot shaft (11) of the cushion portion (1) is inserted, and a support shaft (43) of the back portion (2).
A circle whose center of rotation is through holes (33) (33) through which (43) is inserted and through holes (31) (31) through which stopper pins (12) (12) provided in the cushion portion (1) slide. The operation lever (3) is provided with arc-shaped elongated holes (32) (32), and one bracket (3) has a locking portion (30A).
0), the locking portion (30A) shown in FIGS.
It is attached by pins so that it is located at both ends of 2).

The cushion portion (1) is a bracket (3) in which the pivots (11) (11) and the stopper pins (12) (12) are outward from the left and right side surfaces at the base end side thereof.
It projects toward (3A), and the folding part (1A) is connected to the tip. The cushion portion (1) is formed of a plate-shaped frame, a foam cushion body containing the frame, and a skin covering the cushion body, and the folding portion (1A) is a foam cushion. The cushion body (1) and the folding portion (1A) are integrally connected to each other.

The back portion (2) is formed of a frame or the like like the cushion portion (1), and the claw pieces (4) and (4) are fixed to the lower left and right side surfaces of the claw portion (4) (4). The support shafts (43) and (43) are welded to the outer surface of the hook, and the hook portions (42) and (42) provided on the claw pieces (4) and (4) have stopper pins (12) of the cushion portion (1). ), The support shafts (43) (43) are attached to the brackets (3) (3
It is attached so as to be inserted into the through holes (33) and (43) of A).

FIG. 4 shows a state in which the back portion (2) is used as a child seat. The back surface of the back portion (2) is supported by the back board (5), and the hook portion (4) of the claw piece (4) fixed to the back portion (2). Since the stopper pin (12) of the cushion part (1) is hooked by 42), the upright back part (2) is locked without tilting forward.

Since the stopper pin (12) of the cushion portion (1) abuts the upper end portion of the elongated hole (32) of the bracket (3), the tip end portion thereof is in a substantially horizontal state without rotating downward. Hold. Then, in this state, the stopper pin (12) is located at the upper end of the elongated hole (32). In this state, although not shown, the locking portion (30A) of the operation lever (30) engages with the stopper pin (12) to move the stopper pin (12) downward, as shown in FIG. Regulated. Therefore, the cushion portion (1) is reliably locked to the seat back (SB) side.

From this use state as a child seat, as shown by the chain line in FIG. 4, the back portion (2) is tilted forward and the back portion (2) is overlaid on the cushion portion (1) so that it can be used as an armrest. Become. When the back portion (2) is moved forward, as described above, the back portion (2)
Is locked, the operating lever (3) is operated to release the engagement between the locking portion (30A) of the operating lever (3) and the stopper pin (12). Then, the cushion portion (1) can be erected around the pivot (11) as the center of rotation, so that the cushion portion (1) is once lifted upward.
As a result, the stopper pin (12) moves downward, so that it is disengaged from the hook portion (42) of the claw piece (4), and the cushion portion (1) and the back portion (2) are both rotatable and the cushion portion (4) is rotatable. By stacking the back portion (2) on (1), it can be used as an armrest.

From the use state as a child seat in FIG. 4, after operating the operating lever (3) to release the engagement state between the locking portion (30A) of the operating lever (3) and the stopper pin (12), The cushion portion (1) is erected so that the cushion portion (1) and the storage recess (A) of the seat back (SB) together with the back portion (2).
When stored inside, as shown in FIG. 5, the cushion portion (1) is locked and holds the stored state without tilting forward.

In this state, the stopper pin (12) of the cushion portion (1) has the long hole (3) of the bracket (3).
Since it is located at the lower end of 2) and is engaged with the locking portion (30A) of the operation lever (30), the locked state is maintained without tilting forward due to a sudden stop of the automobile or the like. The operating lever (30) is biased by the spring (34) from the lower end of the elongated hole (32) toward the upper end. In the state of FIG. 5, the cushion portion (1) and the back portion (2) become a part of the seat back (SB), which an adult can use as a part of the seat back (SB).

In order to change the state shown in FIG. 5 to the state shown in FIG. 4, the operation lever (30) is rotated downward in FIG. 5 against the elastic force of the spring (34) to move the cushion portion (1). You can move forward. Further, when both the cushion portion (1) and the back portion (2) are tilted forward from the state of FIG. 5, the back portion (2) overlaps the cushion portion (1) and can be used as an armrest, as shown in FIG. Becomes

In the state shown in FIG. 6, since the operating lever (30) is biased by the spring (34),
The locking portion (30A) of the operation lever (30) is engaged with the stopper pin (12) of the cushion portion (1). Therefore, the cushion portion (1) is locked, but the back portion (2) is rotatable, so that the back portion (2) is superposed on the cushion portion (1) by its own weight.

When used as a child seat from the state shown in FIG. 6, the operating lever (30) is rotated against the elastic force of the spring (34) to move the stopper pin (12) and the locking portion (30A). After releasing the engaged state, the back part (2)
When it is erected, the stopper pin (12) moves along the edge of the claw piece (4) while being pressed downward by the edge of the claw piece (4) to move to the hook portion (42) of the claw piece (4). Engaging with FIG.
Then, it can be used as a child seat.

[0028]

According to the present invention, the child seat cushion portion and the child seat back portion which can be used as the armrests are locked in the use state as the child seat and the storage state which is the use state as a part of the seat back. Therefore, since the vehicle seat is securely fixed without rattling due to vibration of the automobile, the usability as a part of the child seat and the seat back formed by storing the child seat becomes extremely good.

In addition, since the upper half of the body of the child is supported by the child seat back portion when used as a child seat, the child's field of view is expanded compared to the conventional product, and the cushioning property of the child seat as a seat back is also improved. To do.

Further, since the height of the seat cushion of the child seat is adjusted to a desired position by adjusting the mounting position of the child seat cushion portion with respect to the bracket fixed to the seat back side, another cushion is provided on the child seat cushion portion. There is no need to stack the body and use it as a child seat cushion. In addition, the child seat cushion portion and the child seat back portion can be overlapped with each other to form an armrest, so that the height of the armrest is high and usability as an armrest is improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a vehicle seat having a child seat according to the present invention.

FIG. 2 is a side view illustrating a usage state as a child seat.

FIG. 3 is a partially cutaway perspective view showing an exploded main part of the present invention.

FIG. 4 is an explanatory diagram of a main part when used as a child seat.

FIG. 5 is an explanatory diagram of a main part in a state of being stored in a storage recess of a seat back.

FIG. 6 is an explanatory diagram of a main part when used as an armrest.

[Explanation of symbols]

 SB Seat back 1 Child seat cushion 2 Child seat back 3 Bracket 4 Claw piece 12 Stopper pin 30 Operation lever 32 Long hole

Front Page Continuation (72) Inventor Tamotsu Shirai 3-2-12 Matsubara-cho, Akishima-shi, Tokyo Tachi-S Co., Ltd. (72) Tomio Suzuyama Inventor 3-2-12 Matsubara-cho, Akishima-shi, Tokyo In-Tachi-S Co., Ltd.

Claims (3)

[Claims] 1. A child seat cushion comprising a child seat cushion portion and a child seat back which are housed in a storage recess provided in the seat back and constitute a part of the seat back and are overlapped on the seat cushion to serve as an armrest. The seat portion and the child seat back portion are each rotatably attached to a bracket fixed to the seat back side, and a lock device is provided for holding the upright state of the child seat back and the stored state of the child seat cushion portion. A stopper pin provided on the child seat cushion, an arc-shaped long hole through which the stopper pin of the bracket is slidably inserted, an operating lever with a locking portion for locking the stopper pin, and the stopper pin The chi to stop Child seat, characterized in that it consists of a claw fixed to the Ile-de seatback. 2. The child seat according to claim 1, wherein the child seat back is supported by a backboard facing the storage recess of the seat back. 3. The child seat according to claim 1, wherein a seat belt having one end fixed to a vehicle body is attached to the child seat cushion portion and the child seat back portion.