JPS6335011Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a seat belt for fixing an infant seat to a car seat, and a structure for fixing the end of the belt extending rearward from the upper edge of the seat back, such as a four-point seat belt.

2. Description of the Related Art Conventionally, a restraint device as shown in FIG. 1 has been used to restrain an infant in a rear seat of an automobile. That is, the symbol A in FIG. 1 indicates the rear seat B of the automobile.
The lower part of the infant seat A is fixed to the rear seat B by a seat belt C installed on the rear seat B. And a belt D whose base is connected to the upper part of the infant seat A.
is connected to the anchor plate G which is fixed to the mounting bracket F welded to the front part of the rear floor panel E.
(See Publication No. 108033 and Japanese Utility Model Application Publication No. 110614/1983).
Therefore, in such a structure, in the event of a car collision, the force indicated by the arrow α acts on the infant seat A, so that the force between the rear floor panel E and the mounting bracket F is applied via the belt D. A force is applied to the mounting bracket F in the direction of separating it from the rear floor panel E. Of course, such a force on the mounting bracket F is borne as a vertical stress, which is a weak point in the welded structure, so strict welding control must be carried out to ensure the safety of the restraint device.
The normal car body assembly line becomes complicated. In addition, unless the mounting bracket is made larger, it is not possible to effectively distribute stress to the vehicle body panel, resulting in an increase in vehicle weight. Furthermore, since the upper edge of the seat bag receives a diagonally downward force from the belt D, problems arise such as the need for reinforcement to prevent the upper edge of the seat bag from deforming.

In order to solve the problems of the conventional seatbelt end fixing structure as described above, the present invention provides a seatbelt device that includes a seatbelt that extends rearward from the upper edge of the seatback. The present invention proposes a seatbelt end fixing structure that includes a mounting bolt for a support retainer or a site shield, and an anchor plate that is connected to the end of the seatbelt and coupled to the mounting bolt. That is, with this configuration, the retainer, site shield, etc. are rigid members extending in the width direction on the outside of the vehicle body, so the end portion of the seat belt can be securely fixed, and there is no need to add any special parts. , it can also contribute to reducing the weight of the vehicle body.

Hereinafter, details of embodiments of the present invention will be explained with reference to FIGS. 2 to 6.

2 and 3 show an embodiment in which bolts 2 are used to attach the edge of the bumper skin via a retainer 1, and structural parts similar to those in FIG. 1 are given the same reference numerals. In the figure, a front edge 3a of a rear bumper 3 is fixed to a rear panel 4 by bolts 2 with a retainer 1 extending in the width direction of the vehicle body. According to the present invention, an anchor plate G to which a belt D is connected is fastened to the bolt 2 together. Therefore, according to such a structure, since the bolts 2 for attaching the retainer 1 are used, no special parts are required. Since the retainer 1 is a highly rigid member extending in the width direction of the vehicle body, the force applied to the anchor plate G during a car collision is not only transmitted from the outside of the rear panel 4 to the entire width direction, but also bends the retainer 1. Since the stress is applied, the attachment portion of the anchor plate G will not be damaged.

FIG. 4 shows an embodiment in which a sight shield 5 is used. In this embodiment, the sight shield 5 covering the upper part of the gap Y between the rear bumper 3A and the rear panel 4 is anchored by the bolt 2. It is fixed to the rear panel 4 together with the plate G.
Therefore, like the retainer 1 described above, the sight shield 5 is a rigid member extending in the width direction on the outside of the vehicle body, so that the same effects as those shown in FIGS. 2 and 3 can be obtained.

FIG. 5 shows a third embodiment in which the rear bumper 3B is fixed to the rear panel 4 using an armature 6 made with a box-shaped cross section. The anchor plate G is fastened together. Therefore, the external force acting on the anchor plate G is transmitted to the highly rigid armature 6 on the outside of the rear panel 4, so that the external force can be reliably borne.

FIG. 6 shows a fourth embodiment suitable for fixing the belt end at the center in the vehicle width direction.
In this embodiment, the rigidity of the jack up bracket 7 located at the bottom of the rear floor panel E is utilized. That is, a bolt 2 for attaching the anchor plate G is provided at the rear of the jack up bracket 7, and the force of the anchor plate G is transmitted to the jack up bracket 7 via this bolt 2. Of course, the position of the bolt 2 is not limited to this. For example, a U-shaped bracket 8 may be welded inside the jack up bracket 7 as shown by the imaginary line, and the anchor plate G may be attached to this bracket 8. It may be bolted.

As is clear from the above description, according to the present invention, the anchor plate of the seat belt is connected to the mounting bolt of the rear bumper component, so the tension direction of the seat belt becomes nearly horizontal as shown in the figure. The seatbelt can reliably bear the impact force applied in the front direction of the vehicle body, and the rear bumper is firmly attached to the vehicle body panel via the mounting bolt, so special reinforcement etc. can be applied by using the mounting bolt. Even without this, the impact force applied to the seat belt can be effectively dispersed to the vehicle body panels. In addition, with the structure of the present invention, the seat belt is tensioned in a near-horizontal direction as described above, so there is no strong downward force acting on the upper edge of the seat back, so the upper edge of the seat back is specially reinforced. This is no longer necessary, and the present invention does not add any special parts, so the weight of the vehicle does not increase.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a seat belt used in a conventional child restraint system, Fig. 2 is a cross-sectional view of the rear of an automobile in which the first embodiment of the present invention is applied, and Fig. 3 is an enlarged view of the main parts of Fig. 2. 4 is a diagram corresponding to FIG. 3 of the second embodiment of the present invention, FIG. 5 is a diagram equivalent to FIG. 3 of the third embodiment of the present invention, and FIG. 6 is a diagram of the fourth embodiment of the present invention. the third
It is a figure equivalent figure. A...Infant seat, B...Rear seat, C, D...
...Seat belt, G...Anchor plate, 1...
...Retainer, 2,2A...Bolt, 3,3A,3
B... Rear bumper, 4... Rear panel (bumper constituent member), 5... Site shield (bumper constituent member), 6... Armature (bumper constituent member).

Claims (1)

[Scope of utility model registration request] A seat belt device including a seat belt extending rearward from an upper edge of a seat back, comprising: a bolt for attaching a rear bumper component to a vehicle body panel;
A seatbelt end fixing structure comprising: an anchor plate connected to the end of the seatbelt and coupled to the mounting bolt.