JPH0619405Y2 - Auxiliary seat for vehicle - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a structure of an auxiliary seat for infants, which is mounted and fixed on a seat of an automobile.

[Prior art and its problems]

It is extremely dangerous to let an infant with a low age who cannot sit alone in a car seat or an infant who can sit alone but cannot cope with shaking or shock while driving a car alone in a car seat Is.

For the purpose of preventing such a danger, it has become common practice to attach an auxiliary seat for infants having a structure suitable for restraining an infant to a vehicle seat.

The above-mentioned auxiliary seat is generally called a "car seat" or the like, and an infant sitting in the auxiliary seat is seated in the car seat in a state in which the child is seated forward or backward (facing the driver) with respect to the seat of the car. It is designed to be fixed to the seat part using the seat belt originally equipped.

It is needless to say that such an auxiliary seat must be constructed so that the infant can be stably restrained, and even if the vehicle suddenly stops in a collision accident or other emergency, the restraining effect can be stabilized without giving a big shock to the infant. It is required to be able to demonstrate.

In order to meet these demands, the structure that has been adopted by conventional auxiliary seats has cushioning materials such as sponge sheets stretched over the inner surface of the auxiliary seat body to improve poor riding comfort caused by shocks when driving a car. In addition, it is designed to be able to absorb a relatively small impact when the vehicle suddenly stops.

When forming the auxiliary seat body, a reinforcing rib is formed on the back surface of the seat body to maintain the strength of the body and prevent the seat body from being damaged even in the event of a collision or other shock.

As described in Japanese Utility Model Publication No. 56-55066, a structure (rotating plate positioned on the pillow) for cushioning the head of an infant is provided on the upper part of the seat body, and a collision accident should occur. The collision energy is absorbed by the structure when it occurs.

Reinforcement pipes are attached to the back of the seat body to configure
When fixing to a car seat, a seat belt is inserted and fixed in the reinforcing pipe portion so that the pipe can absorb the shock of impact.

And so on.

However, it has been pointed out that the above conventional structure has the following drawbacks.

(1) In the case of a structure in which a cushioning material such as a sponge sheet is covered on the inside of the auxiliary seat body, an improvement effect on poor riding comfort caused by minute vibrations can be expected, but impacts such as collisions and large forces are applied. I can't handle it at all.

(2) When a cushioning structure for supporting the head of the infant is attached to the upper part of the auxiliary seat body as described in Japanese Utility Model Publication No. 56-55066, only the infant's head is protected from impact such as collision. Therefore, it cannot cope with the shock applied to the whole body of the infant.

(3) In the case of a structure in which reinforcing ribs are integrally formed on the back surface of the auxiliary seat main body, the reinforcing ribs are exposed on the rear surface of the main body, so not only is the design impractical, but the auxiliary seat is fixed to the car seat. When doing so, the reinforcing ribs formed on the back face come into contact with the seating surface or the back support of the automobile seat, which has the drawback that the cloth on the seating surface is easily scratched and damaged.

(4) When installing a shock absorbing pipe that also functions as a reinforcement on the back of the auxiliary seat, the size of the back seat will become thicker and the structure of the auxiliary seat will increase because the pipe mounting dimension will be added to the structural part of the reinforcing seat body. In addition to the drawback of being large-scale, there is a drawback of damaging the fabric constituting the seat as in the case of the reinforcing rib described in the preceding paragraph because the pipe portion rubs against the seat of the automobile when placed on the automobile seat.

And so on.

[Purpose of device]

The present invention has been made in view of the above circumstances and intends to cope with this.

That is, the present invention, inside the seat body that constitutes the auxiliary seat,
A molded inner frame that supports the infant's body and absorbs the impact on the infant's body is integrally attached so as to form a part of the auxiliary seat body. It is an object to provide an extremely safe vehicle-use auxiliary seat for infants, which is configured to absorb most of it and reduce the impact on the infant.

Another object of the present invention is to form a reinforcing rib formed on the auxiliary seat main body at a position inside the auxiliary seat main body facing a molded inner frame for shock absorption, whereby the reinforcing rib is formed. The present invention aims to provide an in-vehicle auxiliary seat that is configured so as not to be exposed to the outside of the vehicle, and that is designed to have an extremely aesthetically pleasing design process.

[Key points of device]

The present invention relates to a seat part and an auxiliary seat made of a hard synthetic resin in which a back support part is integrally erected at the rear end of the seat part, and a molded inner frame for shock absorption is formed on the surface contacting the infant's body. A shock absorbing molded inner frame made of expanded polystyrene or other hard synthetic resin foam having a shape matching this is formed between the back surface and the auxiliary seat body to form an open portion for mounting. The main point of the invention is a vehicle-mounted auxiliary seat that is configured by mounting with an appropriate clearance.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

1 is an auxiliary seat body formed of hard synthetic resin,
A seat floor 2 having an opening formed for attaching the shock absorbing molded inner frame 6 to the seat floor, and a standing upright from the rear end of the seat floor 2, and the shock absorbing molded inner frame 6 is attached to the front surface. The back support portion 3 having an open portion is formed integrally therewith.

Reference numeral 21 denotes a reinforcing rib integrally formed in an appropriate shape on the inner surface of the back support portion 3 (the surface that the infant's body contacts) and the inner surface of the seat floor portion 2 (the seating surface of the infant). While strengthening the strength of the pad portion 3 and the seat floor portion 2, between the inner surface of the back pad portion 3 and the shock absorbing molded inner frame 6, and between the upper surface of the seat floor portion 2 and the shock absorbing molded frame 6. By forming an appropriate space (gap) between them, the cushioning effect of the shock absorbing molded inner frame 6 is fulfilled.

The above-mentioned reinforcing ribs 21 are raised on the inner surface of the back support portion 3 so as not to interfere with the formation of the insertion holes 22 ... 22 of the belt 4 for restraining an infant, and the inner surface of the seat floor portion 2 (seat). On the surface facing the floor), a protrusion is integrally formed at a position that does not interfere with the undulating swing of the locking mechanism 5 that locks the intermediate portion of the infant restraining belt 4.

The shock-absorbing molded inner frame 6 is made of polystyrene foam or rigid polyurethane foam having an appropriate hardness.

Although not particularly shown, it is desirable to form a reinforcing rib similar to that of the auxiliary seat body 1 on the back side of the impact absorbing molded inner frame 6 (on the side in contact with the auxiliary seat body 1).

The shock-absorbing molded inner frame 6 attached to the auxiliary seat body 1 is formed with an open portion (inside the backrest portion 3 or inside the backrest portion 3 and the floor surface of the seat portion 2) formed to attach it. The open part) is formed in a size that can be closed, and the inner part of the back support part 3 (the side where the body of the infant contacts)
In the case of closing only one of them, the structure is formed as a structure having a shape corresponding to the corresponding surface as illustrated in FIG. 1 and FIG. 2, and the entire inner surface of the auxiliary seat body 1 including the seat floor portion 2 is formed. When closed, it is formed as a structure having a shape matching the entire inner surface of the auxiliary seat body 1 as illustrated in FIG.

As means for integrating the shock absorbing molded inner frame 6 and the auxiliary seat body 1 with each other, in addition to tightening means using screws, integration means using an adhesive or the like can be appropriately adopted.

The belt 4 for restraining an infant is attached so as to be passed from the back rest 3 to the seat floor 2, and a part of the belt is wound by a known retractor mechanism (not shown) attached to the lower surface of the auxiliary seat body 1. It is configured so that the belt can be freely expanded and contracted by taking out and unwinding.

Further, the retractor mechanism (not shown) may be equipped with an emergency lock mechanism (ELR mechanism) that activates the lock mechanism at the time of an emergency such as a sudden stop to stop the feeding of the belt 4 for restraining the infant.

Furthermore, it is preferable to attach an inclination angle adjusting mechanism B for changing the seat height and the inclination angle to the lower surface of the auxiliary seat body 1 as necessary.

[Effect of device]

The present invention configured as described above has the following effects.

(1) The body of an infant sitting on the auxiliary seat body 1 is constantly pressed toward the back rest part due to the inertia generated during running. In this state, if a shock due to a collision or other causes occurs, it is pushed toward the back rest part 3 direction. The body of the infant being pushed is pushed forward by the impact and then further rebounded to be pushed toward the backrest 3 with a stronger impact (the force sometimes reaches several G). ), Since the present invention integrally forms the shock absorbing molded inner frame 6 inside the auxiliary seat body 1 (the side where the infant's body comes into contact), the shock absorbing molded inner frame is thus amplified. 6 can be softly absorbed, and it is an excellent feature that can eliminate the drawback that a strong shock is applied to the infant's body without any cushioning unlike the conventional auxiliary seat. The it has.

(2) The impact absorbing molded inner frame 6 attached to the inner surface of the back support portion 3 or the inner surface of the back support portion 3 and the upper surface of the seat floor portion 2 is provided on the upper surface of the reinforcing rib 21 formed at each attachment portion. Since it is mounted so as to abut, and an appropriate gap is formed between the backrest 3 and the seat floor 2, the impact applied to the shock absorbing molded inner frame 6 at the time of collision is also caused by this gap. It is now dispersed and absorbed, and the buffering effect can be further enhanced.

(3) In order to increase the strength of the auxiliary seat body 1, it is necessary to form the reinforcing ribs 21 on the entire structure that is made relatively thin using synthetic resin. Since the open surface for mounting the shock absorbing molded inner frame 6 is formed on the main body 1, the reinforcing rib 21 is used when designing the mold.
Can be formed on the surface (inner side) corresponding to the shock absorbing molded inner frame 6 so that the shock absorbing molded inner frame 6 functions as a support and the reinforcing rib 21 has two functions. There is an advantage that can be demonstrated.

(4) Since the reinforcing ribs 21 that are formed to be raised when the auxiliary seat 1 is completed are covered with the impact absorbing molded inner frame 6 and are not exposed to the outside, the design can be an excellent design. In addition, the reinforcing ribs 21 are shielded from the outside and do not come into direct contact with the fabrics that make up the seats of automobile seats, so damage to the automobile seats caused by scratches on the reinforcing ribs 21 is completely prevented. There are great advantages that you can do.

(5) Since the shock-absorbing molded inner frame 6 can be formed of an inexpensive material such as expanded styrene resin, the cost of the obtained product is not soared and the weight of the entire product can be gradually reduced. It has an excellent effect that it can be done.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a perspective view showing a state in which a molded inner frame for shock absorption is attached only to a back rest part, and FIG. 2 is an exploded perspective view of the same figure. FIG. 3 is a perspective view showing a modified example of a molded inner frame for impact absorption. 1 ... Auxiliary seat body, 2 ... Seating part, 21 ... Reinforcing ribs, 22 ... Infant restraint belt insertion hole, 3 ... Back rest part, 4 ... Infant restraint belt, 5 ... ... Locking mechanism for restraint belt, 6 ... Inner frame for shock absorption

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Watanabe 3-16-9 Kanda, Chiyoda-ku, Tokyo Inside Kombi Co., Ltd. (72) Inventor Kaneko Tomihiro 2-16-22 Mejiro, Toshima-ku, Tokyo Kaneko Design Inside the office (56) References Open 61-125837 (JP, U) Open 61-132133 (JP, U) Open 47-18236 (JP, U)

Claims (2)

[Scope of utility model registration request] 1. A shock absorbing molded inner frame on an inner surface of the backrest of a seat body made of a hard synthetic resin in which a backrest is integrally erected at a rear end of the seat floor. The impact absorbing molding inner frame made of foamed polystyrene or other hard synthetic resin foam is attached to the upper surface of the reinforcing rib which is formed inwardly at the mounting portion, and the impact absorbing molding inner frame is formed. An in-vehicle auxiliary seat that has an appropriate gap between the back of the frame and the auxiliary seat body. 2. Mounting parts for a shock-absorbing molded inner frame are formed on the inner surface of the seat part and the inner surface of the back support part, and on the upper surfaces of the reinforcing ribs formed inwardly at these mounting parts. , A shock-absorbing molded inner frame made of expanded polystyrene or other rigid synthetic resin foam having a shape matching the mounting portion is mounted, and an appropriate gap is provided between the back surface of the shock-absorbing molded inner frame and the auxiliary seat body. The auxiliary seat for vehicle mounting according to claim 1 of the utility model registration claim.