A seat belt webbing structure

Abstract

A webbing structure for a safety belt, comprising a webbing body and a chest and abdomen protection device, the vertical section of the chest and abdomen protection device is an inverted V-shaped structure, and the chest and abdomen protection device is fixed at the position where the webbing contacts the chest and abdomen of a vehicle occupant , including a first connection end and a second connection end, the first connection end and the second connection end are plate-shaped connection ports, the first connection end and the second connection end are respectively provided with installation holes corresponding to the webbing, the first connection end and the second connection end After the two connecting ends pass through the webbing respectively, they are set against arches at the position where the webbing contacts the chest and abdomen of the vehicle occupant. When the force is large, because the wearer's body leans forward, the chest and abdomen press the seat belt, the chest and abdomen protection device elastically deforms under the force, and the first connecting end and the second connecting end change from the original convex state. In a straight state, it can effectively absorb part of the impact force and reduce the force on the seat belt webbing, so as to prevent secondary damage to the human body caused by the seat belt webbing.

Description

technical field [0001] The invention belongs to the technical field of automobiles and relates to the structure of automobile parts, in particular to a structure of automobile safety protection parts. Background technique [0002] As an important part of the occupant restraint system, the seat belt is more and more widely used. At present, the design of the seat belt webbing is various, and the material is mostly PET. Decorate the secondary damage caused by the collision. However, in a high-speed collision, after the webbing of the seat belt is locked, under the action of a large impact acceleration of the human body, it will be deformed laterally due to longitudinal stretching, which reduces the area of ​​the webbing that interacts with the chest and abdomen of the human body. When the collision acceleration of the car is high and the impact pressure of the occupant on the webbing is high, the reduction of the area of ​​action of the webbing will generate excessive pressur...

AI Technical Summary

Problems solved by technology

However, in a high-speed collision, after the webbing of the seat belt is locked, under the action of a large impact acceleration of the human body, it will be stretched and deformed laterally due to longitudinal stretching, which reduces the area of ​​the webbing that interacts with the chest and abdomen of the human body.

When the collision acceleration of the car is high and the impact pressure of the occupant on the webbing is high, the reduction of the area of ​​action of the webbing will generate excessive pressure on the contact torso, which may cause excessive compression of the chest and abdomen of the occupant, and in severe cases, cause damage to internal organs , even life-threatening, reducing the overall protective effect of the seat belt device

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