JPS61282143A - Construction of reinforcing anchor part of seat belt for car - Google Patents

Abstract

PURPOSE:To restrain a floor panel from being deformed by providing a stopper member which prevents a seat belt anchor stay from rotating, on a frame for supporting a body. CONSTITUTION:The belt anchor reinforce 14 of a floor panel 13 is connected to the cross member 15 of a frame 11 by means of a seat belt anchor stay 16. The base end part 22a of a stopper member 22 is installed on the frame 11 side, and the seat belt anchor stay 16 is prevented from being rotated in the frontward direction of a car centering around its lower end part, due to this stopper member 22. The middle part of the seat belt anchor stay 16 is inserted through the end part of the stopper member 22. Thereby, when a car has collided, if a load of collision is inputted into the belt anchor reinforce 14, this inputted collision load is applied to the frame 11 via the seat belt anchor stay 16, preventing a floor panel from being deformed.

Description

DETAILED DESCRIPTION OF THE INVENTION The above invention relates to a reinforcing structure for reinforcing the anchor portion of an automobile seat belt.

Examples of conventional reinforcing structures of this type are those shown in Figures 4 and 5. The reference numeral 1 in Figure 0 indicates a frame, which is the frame on which the engine, suspension, steering, etc. are assembled. A vehicle body 2 is supported on this frame 1 via an elastic member 1 (not shown), such as a rubber mount. A belt anchor lane force 4 is joined to the tunnel part 3a of the floor panel 3 of the vehicle body 2 at a predetermined position, and a seatbelt anchor part (not shown) is fixed to this joint part.

In automobiles having a frame structure as described above, the frame 1 and the floor panel 3 of the vehicle body 2 are not directly fixed, so the seat belt input is applied to the belt anchor lane force 4 of the floor panel 3 in the event of a vehicle collision, etc. In such a case, the belt anchor lane force 4 alone may not be able to withstand sufficiently, and the floor panel 3 may be deformed. Therefore, this part has been reinforced as follows.

That is, a substantially cylindrical guide vibro is joined to the cross member 5 of the frame 1, a substantially U-shaped seat belt anchorage 7 is loosely inserted into this vibro, and the rain upper end 7a of this stayer is a belt anchor lane force. Bolt/weld nut 9. It is fixed at lO. In this way, when a collision load is input from the seat belt to the belt anchor lane force 4 on the floor panel 3 at the time of a vehicle collision, 1. An input is transmitted to the cross member 5 via the seat belt anchorage 7. Therefore, as a result of the collision input being borne by the highly rigid frame 1, deformation of the floor panel 3 is prevented. By the way, in such a frame structure, since the vehicle body 2 is supported elastically,
Although the floor panel 3 and the frame 1 are designed to be displaced relative to each other, since the seat belt anchorage 7 is loosely inserted into the guide vibro, the relative displacement between the two is not affected. Vehicle body 2 during road driving, etc.
Vibration transmission to the sides will be well damped.

(Refer to Utility Model Publication No. 13048/1983)
However, in such conventional reinforcement structures,
Since the collision load input acts on the belt anchor lane force 4 in the direction of arrow F in FIG. There was a risk that the floor panel 3 would be deformed by rotating toward the front of the vehicle.

This deformation becomes even greater in vehicles where the gap between the frame 1 and the floor panel 3 is large, because the seat belt anchorage 7 becomes longer.

In order to solve this problem, the present invention connects the belt anchor lane force joint of the floor panel of the vehicle body and the frame supporting the vehicle body with a seat belt anchorage, thereby preventing the vehicle from colliding with the vehicle during a collision. A seatbelt anchor part configured to transmit the input acting on the belt anchor lane force joint part through the seatbelt to the frame by the seatbelt anchorage, thereby preventing deformation of the floor panel. In the reinforcement structure of.

The base end of a stopper member that prevents automatic movement around the lower end of the seatbelt anchorage is attached to the frame, and the tip of the stopper member is connected to the lower and upper ends of the seatbelt anchorage. It is characterized by a reinforcement structure for the seat belt anchor part of the automobile connected between the seats.

■ With this configuration, when a collision load is input to the belt anchor lane force on the floor panel during a vehicle collision,
The seat belt anchorage that connects this reinforcement to the frame tries to rotate toward the front of the vehicle around its lower end, as in the conventional case. However, since this rotation is blocked by the stopper member, the collision input is borne by the frame via the seatbelt anchorage.

Deformation of the floor panel will be effectively prevented.

1 case - Hereinafter, this invention will be explained based on examples.

FIG. 1 and FIG. 2 are diagrams showing one embodiment of the present invention.

First, to explain the structure, reference numeral 11 in the figure is a frame extending over the entire length of the vehicle, and an elastic member (not shown), such as a rubber mount, is connected to the vehicle body 11 on this frame 11.
is supported. A belt anchor lane force 14 having a substantially hat-shaped cross section is joined to the floor panel 13 of the vehicle body 12 at a predetermined position, spanning over the tunnel portion 13a. This reinforcement 14 and a cross member 15 of the frame 11 located below are connected by a seat belt anchorage 16.

Specifically, first, a substantially cylindrical guide pipe 17 is joined to the center of the cross member 15, and to this guide pipe 17,
The lower end 16a of the approximately U-shaped seat belt anchorage 16 is loosely inserted, while the upper end 16b of the stay 16 is inserted into the bracket 18 connected to the belt anchorage force 14 with a bolt weld nut 19.20.
It is fixed at . Further, a bracket 21 is provided on the cross member 15 so as to protrude toward the rear of the vehicle, and a stopper member 22 is interposed between the rear end portion 21a of this bracket 21 and the seat belt anchorage 16. Specifically, this stopper member 22
2a is joined to the rear end part 21a of the bracket 21, while the intermediate part 16c between the lower end part 16a and the upper end part 16b of the seat belt anchorage 16 is inserted into the cylindrical part 22b formed at the tip part. ing. The seat belt anchorage 16 is thus prevented by the stopper member 22 from rotating toward the front of the vehicle about the lower end portion 16a during a collision. Further, the flange portion 23 that prevents the downward movement of the cylindrical portion 22b is arranged at an appropriate distance from the cylindrical portion 22b so that the seat belt anchorage 1
6 by welding or the like.

Next, the operation of the reinforcing structure having such a configuration will be explained.

In normal driving conditions, the vehicle body 12 is elastically supported on the frame 11, so vibrations of the frame 11 are attenuated and transmitted to the vehicle body 12, reducing vibration noise in the vehicle interior and improving comfort. Well kept. At this time, the frame 11 and the vehicle body 12 are relatively displaced, but (1) the base end 16a of the seat belt anchorage 16 is loosely inserted into the guide vibe 17, and (2) the intermediate part 16c of this stay 16 is inserted into the stopper member 22. It is inserted into the cylindrical part 22b, and
Since the collar portion 23 is spaced apart from the cylindrical portion 22b at an appropriate distance, the stay 16 can be moved relative to the guide vibe 17 and the stopper cylindrical portion 22b. Therefore, even if the seat belt anchorage 16 or the like is provided, the above-mentioned relative displacement can be performed without any hindrance.

When a vehicle collides, the belt anchor lane force 1 on the floor panel 13 is applied via the seat belt as in the conventional case.
4. A collision load in the direction of arrow F acts on the joint portion. This load is transmitted to the frame cross member 15 via the seat belt anchorage 16. In this case, since the direction of the collision load is in the direction of arrow F, the seatbelt anchorage 16 tries to rotate toward the front of the vehicle around the lower end 16a.
c is inserted through the cylindrical portion 22b of the stopper member 22, so that the stopper member 22 prevents the stay 16 from rotating about the lower end portion 16a. Therefore, unlike in the past, the function of the seatbelt anchorage 16 is fully demonstrated and the input is effectively borne by the frame 11.
Deformation of the floor panel 13 is effectively suppressed. Furthermore, at this time, due to the tensile force of the seat belt anchorage 16, the cylindrical portion 22b slides on its stay 16, and the stopper member 22 rotates downward (in the direction of the arrow) around the base end 22a. There is a risk of deformation. but,
Since the flange portion 23 prevents the cylindrical portion 22b from moving and deforming, the stopper member 22 can reliably perform its function of preventing the stay 16 from rotating without significantly increasing the rigidity of the stopper member 22.

Furthermore, since the seatbelt anchorage 16 is disposed along the downward direction of the road, the force acting upward on the belt anchorage lane force 14 does not act on the force that causes the anchorage 16 to rotate. First, the component force is borne by the frame cross member 15 via the stay 16, and upward deformation of the floor panel 13 is of course prevented.

In addition, as for the method of disposing the stopper member 22, in the above embodiment, the base end 22a is attached to the seat belt anchorage 16.
Install it in the rear position of the vehicle.

Rotation is prevented by pulling the stay 16, but on the contrary, rotation can also be prevented by attaching the base end 22a at a forward position and stretching the stay 16.

As explained above, according to the present invention, since rotation of the seat belt anchorage is prevented by the stopper member, the anchorage is prevented when a collision load is input to the belt anchor lane force. The floor panel does not rotate around its lower end, and therefore the amount of deformation of the floor panel can be significantly reduced compared to the conventional method, which is a useful effect in practice.

[Brief explanation of the drawing]

1 to 3 are diagrams showing an embodiment of the reinforcing structure for the seat belt anchor portion of an automobile according to the present invention, in which FIG. 1 is a sectional view taken along line I-I in FIG. FIG. 3 is a perspective view of the reinforcing structure, FIG. 4 and FIG. 5 are views showing conventional examples, and FIG. 4 is a cross-sectional view corresponding to FIG. 2. FIG. 5 is a sectional view taken along the line ■-■ in FIG. 4. 11... Frame 12... Vehicle body 13... Floor panel 14... Belt anchor lane force 16... Seat belt anchorage 16a... Lower end portion 16b... Upper end portion 22...
Stopper member 22a... Proximal end 22b... Cylindrical part (tip part) Fig. 1 II () Fig. 2 Fig. 3 II) 0 Fig. 4 Fig. 5 S

Claims (1)

[Claims] The belt anchor lane force joint of the floor panel of the vehicle body and the frame supporting the vehicle body are connected by a seat belt anchor stay, and the belt anchor is connected via the seat belt in the event of a vehicle collision, etc. In the reinforcing structure of the seat belt anchor portion, the seat belt anchor portion is configured to prevent deformation of the floor panel by transmitting the input acting on the anchor lane force joint portion to the frame through the seat belt anchor stay to bear the load. The base end of a stopper member that prevents rotation about the lower end of the stay is attached to the frame, and the tip of the stopper member is placed between the lower and upper ends of the seat belt anchor stay. A reinforcing structure for an automobile seat belt anchor portion, which is characterized by being connected.