JP2009166605A - Child seat anchor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a child seat anchor capable of suppressing the inclination of a child seat when an impact is applied thereto by a simple structure. <P>SOLUTION: This child seat anchor 1 for fixing the child seat to the sitting part of the seat of an automobile includes a bracket 10 having a body fixing part 100 for fixing the child seat anchor 1 to the body 40 of the automobile under the sitting part; and a hook engagement body 11 for engaging a hook attached to the child seat. The bracket 10 includes: a pair of engagement body fixing parts 101 for fixing the hook engagement body 11; and a deformation restraining part 102 formed between the pair of engagement body fixing parts 101 and projecting from the engagement body fixing parts 101 toward the body 40. The deformation restraining part 102 restrains the deformation of the bracket 11 by abutting on the body 40 when a load toward the body 40 is applied to the engagement body fixing parts 101. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a child seat anchor for fixing a child seat to an automobile seat.

2. Description of the Related Art Conventionally, a pair of child seat anchors for fixing a child seat to a car seat is known (for example, see Patent Document 1).
As shown in FIGS. 6 and 7, a pair of conventional child seat anchors 9, 90 includes a bracket 91 having a body fixing portion 913 for fixing the child seat anchor 9 to the body 930 of the automobile below the seating portion of the seat. And a hook engaging body 911 for engaging a hook provided on the child seat.

The pair of child seat anchors 9 and 90 are fixed to the body 930 by, for example, bolts 941 or the like in the body fixing portion 913.
The body fixing portion 913 includes an engaging body fixing portion 914 that fixes the hook engaging body 911.

JP 2007-168616 A

  However, the conventional pair of child seat anchors 9, 90 has the following problems. In other words, when an inertial force directed obliquely forward is applied to the child seat, the pair of child seat anchors 9 and 90 receive a force obliquely forward. At this time, an excessive load may be applied to the hook engaging body 911 of one child seat anchor 9 toward the body 930 below the seating portion (see arrow Y in FIG. 7).

In particular, when the length of the hook engaging body 911 is long and the load point is far from the body fixing portion 913, the moment acting on the hook engaging body 911 becomes large, and the child seat anchor 9 may be deformed by this load.
As a result, there is a possibility that the inclination of the child seat engaged with the child seat anchor 9 in the hook engaging body 911 is increased.

On the other hand, it is conceivable to employ a structure that increases the rigidity of the child seat anchor 9 so that it can withstand such an excessive moment.
However, in this case, the mass of the child seat anchor 9 may increase.

  Further, in order to simply restrict the downward deformation of the child seat anchor 9, it is necessary to arrange the entire child seat anchor 9 along the body 930 at an appropriate position corresponding to the position of the hook of the child seat. The configuration of the child seat anchor 9 is poor in feasibility.

  The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a child seat anchor that can suppress the inclination of the child seat at the time of applying an impact with a simple structure.

The present invention is a child seat anchor for fixing a child seat to a seat of a car seat,
A bracket having a body fixing portion for fixing the child seat anchor to a vehicle body below the seating portion, and a hook engaging body for engaging a hook provided on the child seat;
The bracket includes a pair of engaging body fixing portions that fix the hook engaging body, and a deformation restriction portion that is formed between the pair of engaging body fixing portions and protrudes from the engaging body fixing portion toward the body. Have
The deformation restricting portion is configured to restrict the deformation of the bracket by contacting the body when a load toward the body side is applied to the engaging body fixing portion. (Claim 1).

The function and effect of the present invention will be described.
The bracket includes the deformation restricting portion, and the deformation restricting portion abuts on the body to restrict deformation of the bracket when a load toward the body is applied to the engaging body fixing portion. It is configured. Thereby, even if the above loads are applied, the deformation amount of the bracket can be reduced.

  That is, for example, when an inertial force acts diagonally forward on the child seat, the child seat anchor hook engaging body is subjected to a force obliquely forward from the child seat and toward the body side below the seating portion. A load may be applied. In this case, a force directed toward the body side also acts on the bracket.

Since the child seat anchor according to the present invention has the deformation restricting portion as described above, when the downward load is applied to the bracket, the bracket is further lowered by bringing the deformation restricting portion into contact with the body. It is possible to prevent deformation toward the head.
As a result, the deformation of the bracket can be sufficiently suppressed, and the tilt of the child seat at the time of impact application can be sufficiently suppressed.

The bracket is formed at a position where the deformation restricting portion protrudes from the engaging body fixing portion toward the body. Therefore, it is possible to bring the deformation restricting portion closer to the body while disposing the engaging body fixing portion at a desired position. That is, it is possible to restrict the deformation of the bracket by bringing the deformation restricting portion closer to the body while maintaining the position of the hook engaging member fixed to the engaging member fixing portion at a height corresponding to the hook of the child seat.
Moreover, since the deformation restricting portion can be formed as a part of the bracket by, for example, deep-drawing a metal plate, the deformation of the bracket is suppressed with a simple structure without adding a new member. be able to.

  Thus, according to the present invention, it is possible to provide a child seat anchor that can suppress the inclination of the child seat at the time of applying an impact with a simple structure.

In the present invention (Claim 1), the deformation restricting portion and the body can be brought into contact with each other and arranged apart from each other when no load is applied to the bracket. You can also.
The deformation restricting portion can protrude from the engaging body fixing portion, for example, about 20 to 30 mm.

Moreover, the child seat anchor according to the present invention can be disposed in either the front seat or the rear seat.
In this specification, the left side is referred to as the left side and the right side is referred to as the right side with respect to the traveling direction in the automobile.

Further, it is preferable that a clearance is formed between the deformation restricting portion and the body when the load is not applied to the engaging body fixing portion.
In this case, the child seat anchor can be easily attached to the body, and the dimensional tolerance on the product can be sufficiently absorbed by the clearance.

A child seat anchor according to an embodiment of the present invention will be described with reference to FIGS.
This example is an example of the child seat anchor 1 for fixing the child seat 3 to the seating portion 410 of the automobile seat 41 as shown in FIG.
In the present example, the child seat anchor 1 is disposed on the rear seat.

  The child seat anchor 1 is provided on the child seat 3 and the bracket 10 having the body fixing portion 100 for fixing the child seat anchor 1 to the body 40 of the automobile below the seating portion 410 as shown in FIGS. A hook engaging body 11 for engaging the hook 30.

The bracket 10 includes a pair of engaging body fixing portions 101 that fix the hook engaging body 11 and a deformation restriction that is formed between the pair of engaging body fixing portions 101 and protrudes from the engaging body fixing portion 101 toward the body 40. Part 102.
When a load toward the body 40 is applied to the engagement body fixing portion 101 via the hook engagement body 11 (see the arrow X in FIG. 1), the deformation restriction portion 102 contacts the body 40 to deform the bracket 10. It is configured to regulate.

In this example, when the child seat 3 is fixed to the seat 41, as shown in FIG. 5, a pair of hooks 30 formed on the rear surface portion 300 of the child seat 3 on the child seat anchor 1 and the second anchor 2 described later. Engage.
In the following, first, the child seat anchor 1 will be described in detail.

  As shown in FIGS. 1 and 5, the child seat anchor 1 is disposed on the body 40 on one side of the rear end below the seating portion 410 in the seat 41. Specifically, the child seat anchor 1 is attached to the right in the right seating portion 410 of the seat 41 and is attached to the left in the left seating portion 410.

As shown in FIGS. 1 to 4, the child seat anchor 1 includes a bracket 10 having a body fixing portion 100, a pair of engaging body fixing portions 101, and a deformation restricting portion 102, and a hook engaging body 11.
The bracket 10 is integrally formed by press-molding a metal plate such as a high-tensile steel plate (SPH440 or the like), for example.

As shown in FIGS. 2 and 3, the body fixing portion 100 is formed in an inclined state with respect to the engaging body fixing portion 101 on the side opposite to the protruding direction of the hook engaging body 11 from the bracket 10.
Further, the body fixing portion 100 is formed with an insertion hole 106 for inserting the bolt 51.
As shown in FIG. 1, the child seat anchor 1 is fixed to a body 400 that is largely inclined with respect to the horizontal direction by, for example, bolts 51 and nuts 52 in the body fixing portion 100.

Moreover, as shown in FIGS. 2-4, a pair of engaging body fixing | fixed part 101 is formed substantially in parallel with each other on the same plane. Further, as shown in FIG. 1, the pair of engaging body fixing portions 101 are disposed apart from the body 40 in a state where the child seat anchor 1 is fixed to the body 40.
The deformation restricting portion 102 is formed to protrude from the pair of engaging body fixing portions 101 toward the body 40. That is, as shown in FIG. 4, the deformation restricting portion 102 includes a side surface portion 104 bent toward the body 40 while inclining inward from the pair of engaging body fixing portions 101, and the engaging body fixing portion 101 in the side surface portion 104. It has the bottom face part 103 which connects a pair of side part 104 in the edge part on the opposite side.
Further, as shown in FIG. 1, the deformation restricting portion 102 has a height H from the engaging body fixing portion 101 to the bottom 103 of the deformation restricting portion 102 of 20 to 30 mm.

In this example, as shown in FIG. 4, the deformation restricting portion 102 has a substantially U-shaped cross section. However, the cross section may be formed in a substantially semicircular shape, for example. That is, the deformation restricting portion 102 can have various shapes as long as it can exert the effects of the present invention.
Moreover, the deformation | transformation control part 102 is formed toward the downward direction from the engagement body fixing | fixed part 101, for example by carrying out deep drawing between the pair of engagement body fixing | fixed part 101. FIG.

  In this example, as shown in FIGS. 1 and 4, the deformation restricting portion 102 is formed with a clearance 6 between the engagement body fixing portion 101 and the body 40 when the load as described above is not applied. . The clearance 6 may have a size C of about 5 to 10 mm, for example.

The hook engagement body 11 is formed by bending a metal wire made of, for example, a hard steel wire (SWC or the like) into a substantially U shape, and is parallel to the bent portion 111 and both ends of the bent portion 111 in the same direction. And a pair of fixed legs 112 extending in a straight line.
Further, as shown in FIGS. 3 and 4, the hook engaging body 11 has the engaging body fixing portion 101 on the lower surface 105 of the pair of engaging body fixing portions 101 of the bracket in a state where the bent portion 111 protrudes from the bracket 10. A pair of fixed leg portions 112 are fixed by welding.

  The hook engaging body 11 is formed so as to sandwich the deformation restricting portion 102. The hook engaging body 11 is fixed to the body 40 side surface of the engaging body fixing portion 101 by, for example, welding.

As described above, the child seat 3 is fixed by the child seat anchor 1 of the present invention and the second anchor 2 that forms a pair with the child seat anchor 1.
The second anchor 2 will be described below.

As shown in FIG. 5, the second anchor 2 is attached to the left in the right seating portion 410 in the seat 41, and is attached to the right in the left seating portion 410.
As shown in FIG. 2, the second anchor 2 fixes the second anchor 2 to the second hook engaging body 21 for engaging the hook 30 of the child seat 3 and the seating portion 410 of the seat 41 of the automobile body 40. And a second bracket 20 having a second body fixing part 200 and a pair of second engaging body fixing parts 201 for fixing the second hook engaging body 21.

The child seat anchor 1 and the second anchor 2 according to the present invention are connected to each other at a connecting portion 12 as shown in FIG.
Further, the second anchor 2 is fixed by a bolt 51, a nut 52, and the like in a body 40 that is curved below the position where the child seat anchor 1 is disposed ().

In fixing the child seat 3 to the seat 41, the child seat 3 is moved rearward as shown in FIG. Then, the pair of hooks 30 are passed between the seating portion 410 and the backrest portion 420.
Further, the pair of hooks 30 is inserted into the hook engaging body 11 and the second hook engaging body 21 formed respectively on the child seat anchor 1 and the second anchor 2 fixed to the body 40. Thereby, the child seat 3 can be reliably fixed to the seat 41.

Below, the effect of this example is demonstrated.
The bracket 10 has a deformation restricting portion 102, and the deformation restricting portion 102 abuts on the body 40 and restricts deformation of the bracket 10 when a load toward the body 40 is applied to the engaging body fixing portion 101. It is configured as follows. Thereby, even if the above loads are applied, the deformation amount of the bracket 10 can be reduced.

  That is, for example, when an inertial force is applied to the child seat 3 obliquely forward, a force directed obliquely forward from the child seat 3 is applied to the hook engaging body 11 of the child seat anchor 1 and the lower part of the seating portion 410 is applied. A load toward the body 40 may be applied. In this case, a force toward the body 40 is also applied to the bracket 10.

In this example, since the deformation restricting portion 102 as described above is provided, when a downward load is applied to the bracket 10, the deformation restricting portion 102 is brought into contact with the body 40, thereby further increasing the bracket 10. Can be prevented from being deformed downward.
As a result, the deformation of the bracket 10 can be sufficiently suppressed, and the inclination of the child seat 3 when an impact is applied can be sufficiently suppressed.

The operation of the child seat anchor 1 of this example when inertia force acts on the child seat 3 will be described with reference to FIG.
For example, when a sudden brake is applied, an inertial force directed forward is applied to the child seat 3. As a result, a forward force acts on both the child seat anchor 1 and the second anchor 2 connected to the hook 30 of the child seat 3.
At this time, a downward load may be applied particularly to the hook engaging body 11 of the child seat anchor 1 (see arrow X in FIG. 1). In this case, a load directed toward the body 40 is also applied to the bracket 10.

  Here, in this example, the bracket 10 has a deformation restricting portion 102. As described above, only a small clearance 6 having a size C of about 5 to 10 mm is formed between the body 40 and the deformation restricting portion 102. In other words, as indicated by a broken line in FIG. 1, the bottom surface portion 103 and the body 40 come into contact with each other only when the deformation restricting portion 102 moves to the body 40 side, for example, by about 10 to 15 mm.

The bracket 10 is formed at a position where the deformation restricting portion 102 protrudes from the engaging body fixing portion 101 toward the body 40. Therefore, the deformation restricting portion 102 can be brought closer to the body 40 while the position of the engaging body fixing portion 101 is arranged at a desired position. That is, the deformation of the bracket 10 is restricted by bringing the deformation restricting portion 102 close to the body 40 while maintaining the position of the hook engaging member 11 fixed to the engaging member fixing portion 101 at a height corresponding to the hook 30 of the child seat 3. be able to.
Further, since the deformation restricting portion 102 can be formed as a part of the bracket 10 by, for example, deeply forming a metal plate, it is possible to deform the bracket 10 with a simple structure without adding a new member. Can be suppressed.

  As described above, according to this example, the bracket 10 can be configured so as to be substantially not deformed, and thus the inclination of the child seat 3 at the time of impact application can be sufficiently suppressed.

Further, a clearance 6 is formed between the deformation restricting portion 102 and the body 40 when the load is not applied to the engaging body fixing portion 101. Accordingly, the child seat anchor 1 can be easily attached to the body 40, and the dimensional tolerance on the product can be sufficiently absorbed by the clearance 6.
Unlike the above, when no clearance is formed between the deformation restricting portion 102 and the body 40, the deformation of the bracket 10 can be further suppressed.

  Thus, according to this example, it is possible to provide a child seat anchor that can suppress the inclination of the child seat at the time of applying an impact with a simple structure.

The longitudinal cross-sectional view of the child seat anchor in an Example. The perspective view which shows the child seat anchor and 2nd anchor in an Example. The perspective view of the child seat anchor in an example. AA line sectional view in FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. The perspective view which shows the child seat anchor in a prior art example. BB sectional drawing in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Child seat anchor 10 Bracket 100 Body fixing | fixed part 101 Engagement body fixing | fixed part 102 Deformation | regulation regulation part 11 Hook engaging body 3 Child seat 30 Hook 40 Body 41 Seat

Claims (2)

A child seat anchor for fixing a child seat to a seat of a car seat,
A bracket having a body fixing portion for fixing the child seat anchor to a vehicle body below the seating portion, and a hook engaging body for engaging a hook provided on the child seat;
The bracket includes a pair of engaging body fixing portions that fix the hook engaging body, and a deformation restriction portion that is formed between the pair of engaging body fixing portions and protrudes from the engaging body fixing portion toward the body. Have
The child seat anchor characterized in that the deformation restricting portion is configured to abut against the body and restrict deformation of the bracket when a load toward the body side is applied to the engaging body fixing portion.   The child seat anchor according to claim 1, wherein a clearance is formed between the deformation restricting portion and the body when the load is not applied to the engaging body fixing portion.

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