JPH063705Y2 - Child seat for vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial Application Field >> The present invention relates to a child seat for a vehicle for restraining the body of an infant for safety when the infant rides on a vehicle.

<< Prior Art >> As a child seat of this type, for example, as shown in FIG. 5, a seat portion 1 and a backrest portion 2 are integrally formed,
It is known that the infant 4 is restrained by the infant belt 3 stretched over the front surface thereof. This child seat is equipped with a seat belt 5 provided in the passenger compartment.
By inserting the insertion hole 6 formed in the boundary portion between the backrest portion 2 and the backrest portion 2, the vehicle seat 7 can be installed.

<< Problems to be Solved by the Invention >> By the way, in the case where an automobile having such a child seat causes an accident, it is necessary to absorb the shock in order to ensure the safety of the infant.

However, in the above-mentioned structure, since the seat portion 1 and the backrest portion 2 are integrally formed, the effect of absorbing shock is small, and the shock can be absorbed only by slightly stretching the infant belt 3. There is a problem that sufficient safety cannot be obtained.

Further, in the case where a recess is formed between the seat portion 1 and the backrest portion 2 in order to obtain a shock absorbing force so that both can be deformed in response to an impact, the boundary between the seat portion 1 and the backrest portion 2 This causes a decrease in the strength of the parts, rather causes excessive deformation, which causes a problem that the amount of movement of the infant increases.

Therefore, an object of the present invention is to provide a child seat for a vehicle, which does not cause excessive deformation of the seat portion and the backrest portion due to an impact and has a sufficient impact absorbing action.

<< Means for Solving Problems >> In order to achieve this object, the child seat of the present invention has a seat portion and a back portion, which are integrally formed, at the boundary portion,
A recess cut from the front surface for fixing to the vehicle seat by a seat belt is formed, and deformation of the seat portion and the backrest portion is attenuated in the recess to form the seat portion and the backrest portion. An elastic body that absorbs the generated impact is interposed, and a notch is formed in the elastic body leaving an end, and the notch and the bottom of the recess form an insertion hole of the seat belt. Characterize.

<Operation> When a shock is applied due to an accident or the like, first, the shock energy is absorbed by stretching the infant belt, and then the backrest part is deformed forward, and this deformation compresses the end part of the elastic body in the recess, The deformation of the backrest part is attenuated to absorb impact energy, and when the impact energy is large, the notch is crushed and sealed, and this part also fulfills the impact energy absorption function.

<< Embodiment >> FIG. 1 is a side view of a child seat showing an embodiment of the present invention.

This child seat includes a recessed portion 1 in a side support portion 12 that is bulged on both sides of a seat portion 10 and a backrest portion 11.
3 are formed, and the elastic bodies 14 are attached to the recesses 13, respectively.

That is, each side support part 12 is integrally formed with the seat part 10 and the backrest part 11.
Also, a recess 13 is formed obliquely from the front surface at a portion just corresponding to the boundary portion of the backrest portion 11.
As shown in FIG. 2, each of the recesses 13 cuts the side support portion 12 in the width direction. Therefore, the seat 10
The boundary portion between the backrest 11 and the backrest 11 has high flexibility, and is easily deformed by an impact. A seat belt 15 installed in the vehicle compartment is passed through a boundary portion between the seat portion 10 having the recess 13 and the backrest portion 11 to fix the child seat 10 to the vehicle seat.

In addition, the elastic body 1 is provided on the inner surfaces of the recess 13 that face each other.
4 is formed with a groove portion 16 and an engaging portion 18, and an engaging protrusion 19 is integrally formed in the central portion of the end portion 1.
Elastic body 14 having a substantially rectangular parallelepiped shape having a notch 20 leaving 4a
However, as shown in FIG. 3, it is inserted from the opening side of the concave portion 13, and the engaging projection 19 is inserted and retained in the engaging hole 18. Here, the notch 20 functions as an insertion hole for the seat belt 15 together with the bottom of the recess 13. As the material of the elastic body 14, a material such as rubber material or soft polyvinyl chloride, which has appropriate elasticity according to the strength between the seat portion 10 and the backrest portion 11, is used. The end portion 14a of the elastic body 14 may be covered with a cushioning material such as slab urethane to form a continuous surface with the side support portion 12.

In the child seat having the above structure, when an impact is applied due to an accident or the like, first, the impact energy is absorbed by the extension of the infant belt 17, and then the backrest portion 11 is moved forward as shown in FIG. Transforms into. Then, due to this deformation, the end portion 14a of the elastic body 14 in the concave portion 13 is compressed, the deformation of the backrest portion 11 is attenuated, and the impact energy is absorbed. When the impact energy is further increased, the deformation of the backrest portion 11 progresses forward, and in this case,
The notch 20 is crushed and hermetically sealed, and this portion also has a function of absorbing impact energy. As a result, the shock applied to the infant is alleviated and the safety is maintained.
Then, the final deflection value at the boundary between the seat portion 10 and the backrest portion 11 is regulated to prevent the strength from decreasing. Further, with respect to a large impact energy, the notch 20 is crushed and hermetically sealed to be involved in the impact energy absorption, and thus the area of the elastic body 14 that fulfills the impact energy absorption function can be expanded. , Even if the child seat receives a large impact energy, the infant can always be caught safely.

<Effects of the Invention> As described above, the child seat according to the present invention is provided with a recess formed in the boundary between the integrally formed seat portion and the backrest portion and cut from the front surface for fixing to the vehicle seat by the seat belt. And an elastic body for damping the deformation of the seat portion and the backrest portion and absorbing the shock generated in the seat portion and the backrest portion is formed in the recess, and Since the notch is formed leaving the end portion and the seatbelt insertion hole is configured by the notch and the bottom of the recess, when an impact is applied due to an accident or the like, first, the impact is caused by stretching the infant belt. It absorbs energy and the backrest deforms forward. Then, due to this deformation, the end portion of the elastic body in the recess is compressed, the deformation of the backrest portion is attenuated, and the impact energy is absorbed. When the impact energy is higher, the deformation of the backrest portion in the forward direction proceeds, and in this case, the notch is crushed and hermetically sealed, and this portion also fulfills the function of absorbing the impact energy. As a result, the impact applied to the infant is alleviated and the safety is maintained. Then, the final deflection value at the boundary portion between the seat portion and the backrest portion is regulated to prevent the strength from decreasing. In addition, for a large impact energy, the notch is crushed and hermetically sealed to be involved in the impact energy absorption, and the area of the elastic body that fulfills the impact energy absorption function can be expanded accordingly, and the child seat can be expanded. Even if it receives a large impact energy, the infant can always be caught safely, and excellent safety can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a child seat showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG.
FIG. 4 is an enlarged side view showing a state in which an elastic body is attached to a recess formed in the child seat shown in FIG. 4, FIG. 4 is a side view showing a state in which the child seat shown in FIG. 1 is deformed due to buffering, and FIG. It is a side view showing an example of the child seat of. 10 ... Seat part, 11 ... Backrest part, 12 ... Side support part, 13 ... Recessed part, 14 ... Elastic body, 14a ... End part, 20 ...
Notch.

Claims (1)

[Scope of utility model registration request] 1. A recess cut from the front surface for fixing to a vehicle seat by a seat belt is formed at a boundary portion between a seat portion and a backrest portion which are integrally formed, and the seat is provided in the recess portion. An elastic body that absorbs the shock generated in the seat portion and the backrest portion by attenuating the deformation between the seat portion and the backrest portion, and the notch is formed by leaving an end portion in the elastic body, A vehicle child seat, wherein the notch and the bottom of the recess form an insertion hole for the seat belt.