JPH06199203A - Fitting structure of seat belt anchor - Google Patents

Abstract

PURPOSE:To provide the fitting structure of a seat belt anchor which restrains the opening deformation of a tail cross member panel and also can accomplish the reinforcement of a striker and a fitting plate with the decreased number of parts. CONSTITUTION:A reinforcement plate 20 which is in contact with one surface portion 21a side of a base end portion 21 forming an approximate L shape and is provided with an extension portion 22 that extends in a separation direction in regard to the other surface portion 21b, is provided, and this reinforcement plate 20 is coupled to a tail cross member panel 3 by butting the base end portion 21 against the upper surface 3a and the side surface 3b of the tail cross member 3, and the tip side of the extension portion 22 is coupled to a back panel 2. The tail cross member panel 3 forms a box shape due to the provision of the reinforcement plate 20 and possesses large strength and is not deformed even if large force acts on it, so the opening/closing of a back door 4 can be maintained in an excellent state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seatbelt anchor mounting structure for use in a rear seat infant restraint system or the like of an automobile.

[0002]

2. Description of the Related Art An example of a conventional seatbelt anchor mounting structure will be described with reference to FIGS. A substantially gutter-shaped tail cross member panel 3 is attached to the back panel 2 (see FIG. 4) of the automobile 1 with its opening facing downward. A striker 5 for holding the back door 4 is attached to the upper surface 3a of the tail cross member panel 3 by a striker bolt 6 and a striker nut 7. In this case, the tail cross member panel 3
A striker reinforcement plate 8 is interposed between the striker nut 7 and the striker nut 7.

One end of the side surface 3b of the tail cross member panel 3 is connected to an upper end of a child restraint seat 10 provided on the rear seat 9 and is connected to an upper end side belt 11 for fixing the infant restraint seat 10. V-shaped fitting plate 12
Are attached by a fitting plate bolt 13 and a fitting plate nut 14.

In this case, a fitting plate reinforcing plate 15 is interposed between the fitting plate 12 and the fitting plate nut 14, and between the fitting plate 12 and the tail cross member panel 3. A spacer 16 is interposed in the.

A child anchorage device hook 17 moored in a mooring hole 12a formed in the fitting plate 12 is interposed between the upper end side belt 11 and the fitting plate 12. The hook 17 for the child anchorage device has one end for a child restraint seat
The other end of the upper end side belt 11 connected to the upper end of 10 is connected, and the child restraint seat 10 is fixed.
In FIG. 4, 18 is a pillar and 19 is a tire house.

[0006]

By the way, in the above-mentioned automobile 1, when a frontal collision accident occurs, the infant seat and the infant (not shown) seated on the infant seat are provided with the FIG.
As shown in FIG. 5, a force F that tends to project forward acts due to inertia. This force F is transmitted from the upper end side belt 11 to the fitting plate 12 installed on the tail cross member panel 3 via the hook.

The force F transmitted to the fitting plate 12 is transmitted to the entire area of the tail cross member panel 3, and as the force F increases, the tail cross member panel 3 is stretched as shown in FIG. It will be transformed. Therefore, the position of the striker 5 attached to the upper surface 3a of the cross member panel by the striker bolt 6 also changes, which may make it difficult to open and close the back door 4 or cause damage. In order to prevent this, for example, a reinforcing measure such as thickening the tail cross member panel 3 to the extent that it is not normally necessary is required.

The present invention has been made in view of the above circumstances, and a seat belt anchor mounting structure capable of suppressing the open deformation of the tail cross member panel and reinforcing the striker and the fitting plate with a reduced number of parts. The purpose is to provide.

[0009]

In order to achieve the above object, the present invention mounts a substantially gutter-shaped tail cross member panel on a back panel with its opening portion facing downward, and attaches it to the upper surface 3a of the tail cross member panel. Attach striker, side 3b
In the automobile 1 having a fitting plate connected to the upper end side belt of the child restraint seat, the extension that is connected to one surface portion of the base end portion having a substantially L shape and extends in the separating direction with respect to the other surface portion. A reinforcing plate provided with a portion, and the reinforcing plate is joined to the tail cross member panel by abutting the base end portion on the upper surface and the side surface of the tail cross member panel,
It is characterized in that the front end side of the extension portion is connected to the back panel.

[0010]

With this structure, even if a frontal force is applied to the tail cross member panel in the case of a frontal collision accident, the tail cross member panel is formed into a box shape by installing the reinforcing plate. Since it has a large strength, it is not deformed by this force.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A seatbelt anchor mounting structure according to an embodiment of the present invention will be described below with reference to FIGS. The same members and parts as those shown in FIGS. 3 to 8 are designated by the same reference numerals.

In the figure, a back panel 2 of an automobile 1 (see FIG. 3) has a substantially gutter-shaped tail cross member panel 3.
Is mounted with the opening facing downward. Reinforcement plate 20
Is an extension portion 22 that is connected to one surface portion 21a of the base end portion 21 having a substantially L shape and extends in the direction of separation from the other surface portion 21b.
Is provided. One surface portion 21a of the base end portion 21
One hole is formed in the center of the
Two holes are formed side by side in b.

On the reinforcing plate 20, the fitting plate nut 14 is welded corresponding to the hole of the one surface portion 21a, and the striker nut 7 is welded corresponding to the hole of the other surface portion 21b. The reinforcing plate 20 is joined to the tail cross member panel 3 by abutting the base end portion 21 to the upper surface 3a and the side surface 3b of the tail cross member panel 3 and spot joining (spotting point is shown by symbol S).

The striker 5 is located on the upper surface 3a of the tail cross member panel 3, and is fixed to the tail cross member panel 3 by screwing a striker bolt 6 into a striker nut 7.

The fitting plate 12 is located on the side surface 3b of the tail cross member panel 3 via a spacer 16,
It is fixed to the tail cross member panel 3 by screwing the fitting plate bolt 13 into the fitting plate nut 14. The fitting plate 12 is formed with a rectangular mooring hole 12a.
Hook 17 for child anchorage device is moored to. Hooks for child anchorage devices 17
The other end of the upper end side belt 11 whose one end is connected to the upper end of the infant restraint seat 10 (see FIG. 7) is connected to fix the infant restraint seat 10.

The tip end side of the extension portion 22 of the reinforcing plate 20 contacts the back panel 2 and is spot-joined to the back panel 2. By connecting the front end side of the extension portion 22 of the reinforcing plate 20 to the back panel 2, the back panel 2, the reinforcing plate 20, and the tail cross member panel 3 become a box shape and have a large strength.

In the seat belt anchor mounting structure thus constructed, the tail cross member panel 3 is reinforced by the reinforcing plate even if a forward force F acts on the tail cross member panel 3 in the event of a front collision. The installation of 20 forms a box shape and has great strength, so that it is not deformed by the force F. Therefore, the striker 5 is maintained at a predetermined position, the opening and closing of the back door 4 is maintained in a good state, and the damage thereof is not caused.

Further, since the reinforcing plate 20 doubles as the reinforcing of the striker 5 and the fitting plate 12, the number of parts can be reduced. In addition, infant restraint seats 10 for restraining infants
Can be surely restrained to the rear seat 9, and thus effective restraint can be secured even for an infant.

[0019]

According to the present invention, the tail cross member panel is box-shaped and has a large strength due to the installation of the reinforcing plate, and is deformed even when a large front force is applied in the case of a frontal collision accident. Therefore, the striker is maintained at the predetermined position, the opening and closing of the back door is maintained in a good state, and the striker is not damaged. In addition, since the reinforcing plate doubles as a reinforcement for the striker and the fitting plate, it is possible to reduce the number of parts, and it becomes unnecessary to take measures such as making the thickness more than necessary.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a seatbelt anchor mounting structure according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a mounting structure of the seat belt anchor.

FIG. 3 is a side view showing an example of an automobile having a seatbelt anchor mounting structure.

FIG. 4 is a perspective view schematically showing a rear seat portion of the automobile.

5 is an enlarged cross-sectional view of a portion A of FIG.

FIG. 6 is a cross-sectional view showing an example of a conventional seatbelt anchor attachment structure.

FIG. 7 is a side view showing a seatbelt anchor mounting structure and a child restraint seat using the same.

FIG. 8 is a side view showing an operation example of the seat belt anchor attachment structure.

[Explanation of symbols]

 1 Car 2 Back Panel 3 Tail Cross Member Panel 3a Tail Cross Member Panel Top Surface 3b Tail Cross Member Panel Side 10 Child Restraint Seat 11 Upper Belt 21 Reinforcement Plate 21 Reinforcement Plate Base End 21a One of the Base Ends Face 21b The other face of the base end 22 Extension of the reinforcing plate

Claims (1)

[Claims] 1. A substantially gutter-shaped tail cross member panel is attached to a back panel with an opening facing downward, a striker is attached to an upper surface of the tail cross member panel, and a side portion is connected to an upper belt of a child restraint seat. In a vehicle equipped with a fitting plate, a reinforcing plate is provided, which is connected to one surface of a substantially L-shaped base end and has an extension that extends in the direction of separation from the other surface. The seatbelt anchor mounting structure according to claim 1, wherein the base end portion is brought into contact with the upper surface and the side surface of the tail crossmember panel to be joined to the tail crossmember panel, and the tip end side of the extension portion is joined to the back panel.