JPH0315403Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the structure of a seal belt anchor portion in a center pillar.

A conventional structure for attaching a shoulder attachment to a center pillar of a three-point seal belt for an automobile, that is, an anchor structure (portion indicated by arrow A in FIG. 1), is shown in FIGS. 2a and 2b. 1 is a center pillar, 2 is an inner panel thereof, 3 is an outer panel, and a reinforcement 5 including an anchor nut 4 is connected to the outer panel 3 by spot welding,
A bolt for attaching a shoulder attachment of a seat belt is coupled to an anchor nut 4 through an inner panel 2. In other words, the force applied to the anchor nut 4 by the seal belt is transmitted not only to the inner panel 2 but also to the outer panel 3. However, in this structure, only the center pillar 1 receives a large load, so there is a risk that the center pillar 1 may bend.

Further, as another structure, the one shown in FIGS. 3a and 3b is also adopted. This connects the reinforcement 6 with the anchor nut 4 to the inner tension extension 7 that connects to the inner panel 2.
It extends upward along the roof rail 8 and is connected to the side inner 9 of the roof rail 8 by spot welding. In this structure, if a force is applied toward the vehicle interior from the seat belt attachment to the anchor nut 4, the spot weld between the reinforcement 6 and the roof side inner 9 may peel off. or,
If the number of spot welding points is increased, the center pillar 1 itself will not have sufficient rigidity, so the center pillar 1 will be deformed.

On the other hand, in recent cars, center pillar 1 is
There is a trend to make the cross section as small as possible in order to improve visibility and a sense of openness, and the risk of deformation due to the load from the seat belt is increasing for such center pillars.

The present invention was developed in view of the above technical situation, and provides an anchor structure that transmits the force from the seatbelt side to parts other than the center pillar, thereby preventing deformation of the center pillar. The purpose is to

The gist of the present invention to achieve the above object is to provide a reinforcement equipped with an anchor nut connected to a shoulder attachment of a seat belt in a center pillar consisting of an inner panel and an outer panel, and connect the upper part of the outer panel to the roof rail. In the center pillar seat belt anchor structure fixed to the outer, the reinforcement has a lower part along the inner panel and to which the anchor nut is attached, and an intermediate part bent diagonally upward from the lower part toward the outer panel. , an upper part that is bent upward from the middle part along the outer panel and is interposed and welded between the outer roof rail and the outer panel, and the lower part penetrates the inner panel. The center pillar seat belt anchor part structure is characterized in that the center pillar seat belt anchor part is crimped and secured to the inner panel via a bolt that is screwed into the anchor nut.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the anchor structure according to the present invention will be described in detail based on an embodiment shown in the drawings.

FIGS. 4a to 4d show a perspective structure of an embodiment and cross sections of various parts.

1 is a center pillar, 2 is an inner panel, and 3 is an outer panel. 7 is an inner upper extension connected to the inner panel 2, and 8 is a roof rail, the roof side inner 9 of which is connected to the inner upper extension 7 by spot welding. 10 is a roof panel.

In this structure, the reinforcement 11 is
The lower part extends along the inner panel 2, the middle part bends diagonally upward toward the outer panel 3, and the upper part extends upward along the outer panel 3, and extends to the roof outer lower 12 of the roof rail 8 and is overlapped therewith. , as shown in FIGS. 4b and 4c, are spot welded at the overlapped portion with the roof outer lower 12 and the overlapped portion with the outer panel 3, respectively. The upper part of the reinforcement 11 spreads from side to side and has an approximately T-shape as a whole. An anchor nut 4 is attached to a portion of the reinforcement 11 along the inner panel 2, into which a bolt of a seat belt shoulder attachment is screwed through the inner panel 2.

In the above anchor structure, the force applied to the anchor nut 4 from the seat belt attachment is transmitted from the reinforcement 11 to the outer panel 3 and the roof outer lower 12 of the roof rail 8, and is borne by these, so a large force is applied to the center pillar 1. is no longer added, and the fear of deformation is eliminated.

As described above based on the embodiments, according to the center pillar seat belt anchor part structure according to the present invention, the reinforcement provided with the anchor nut coupled to the shoulder attachment of the seat belt is attached to the inner panel and the outer panel. In the center pillar seatbelt anchor structure, the reinforcement is provided in the center pillar and has the upper part of the outer panel fixed to the outer roof rail, and the reinforcement is installed along the inner panel and in the lower part to which the anchor nut is attached, and an intermediate part that is bent diagonally upward from the lower part toward the outer panel; and an upper part that is bent upward from the intermediate part along the outer panel, and is interposed and welded between the outer roof rail and the outer panel. Further, the lower part is crimped and locked to the inner panel via a bolt that passes through the inner panel and is screwed to the anchor nut, so that the force applied to the anchor nut by the mounting tool is applied to the roof rail. As a result, deformation of the center pillar can be prevented, and it is also possible to make the center pillar have a small cross-sectional area.

[Brief explanation of drawings]

Figure 1 is a side view of the automobile, Figures 2a and b are cross-sectional views showing the structure of the anchor portion of a conventional center pillar and its cross-sectional view taken along the line B-B, and Figures 3a and b are views of other conventional center pillar anchors. A vertical sectional view of the anchor part and a sectional view taken along the line C-C, FIG. 4a is a perspective structural view of the anchor part according to the present invention, and FIGS.
-D, EE, FF arrow sectional views. In the drawings, 1 is the center pillar, 2 is the inner panel of the center pillar, 3 is the outer panel of the center pillar, 4 is the anchor nut, 7 is the inner top extension, 8 is the roof rail, 11 is the reinforcement, and 12 is the roof rail. This is the roof outer lower.

Claims (1)

[Scope of utility model registration request] A center pillar seatbelt anchor section in which a reinforcement equipped with an anchor nut connected to a shoulder attachment of a seal belt is provided in a center pillar consisting of an inner panel and an outer panel, and an upper part of the outer panel is fixed to an outer roof rail. In the structure, the above reinforcement is
a lower part along the inner panel and to which the anchor nut is attached; a middle part bent diagonally upward from the lower part toward the outer panel; and a middle part bent upward from the middle part along the outer panel and connected to the roof rail outer. and an upper part interposed and welded to the outer panel, and the lower part further includes:
A center pillar seatbelt anchor structure, characterized in that the center pillar seatbelt anchor portion is crimped and secured to the inner panel via a bolt that penetrates the inner panel and is screwed into the anchor nut.