A kind of active pretensioning safety belt of automobile

An active seat belt technology, applied in the direction of belt tightener, etc., can solve the problems of increased collision risk between legs and car interior, neck injury of seat belt occupant, insufficient belt pre-tightening force, etc., to eliminate wearing gap , simple structure, and the effect of reducing occupant damage

Inactive Publication Date: 2016-11-23
HUNAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, in a collision, the lower part of the occupant may slide forward and downward under the action of inertia due to insufficient belt pre-tightening force, untimely pre-tightening and different degrees of submersion of the seat, thereby causing the occupant to submerge. On the one hand, it will increase the risk of collision between the legs and the interior of the car; on the other hand, the seat belt will act on the neck of the occupant and cause serious injury

Method used

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  • A kind of active pretensioning safety belt of automobile
  • A kind of active pretensioning safety belt of automobile
  • A kind of active pretensioning safety belt of automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] like figure 1As shown in the figure, the accident warning device 1 is connected to one end of the DC motor 2, and it can judge whether an accident has occurred according to the dangerous degree of the current driving state, the abnormal dynamic response of the vehicle, and the driver's violent maneuvering behavior, and send out a signal before the collision accident occurs. The command controls the DC motor 2 to work. The DC motor 2 is riveted and fixed with the aluminum casing 6 through the mounting plate 5, and the power output shaft of the DC motor 2 is connected with the transmission system 4, the transmission system 4 is connected with the one-way device 8, and the one-way device 8 is connected with the retractor 7. One end of the mandrel 71 is connected by splines, and the transmission system 4 and the one-way device 8 are installed in the groove of the aluminum casing 6, so the motion and power are decelerated through the transmission system 4, and then transmitt...

Embodiment 2

[0058] like Figure 6-9 As shown, the difference between this preferred embodiment and Embodiment 1 is that the structure of the double-sided pre-tightening of the safety belt is adopted, and the webbing kit 3 includes webbing 34, an upper guide ring 33, a buckle insert 36, a lower guide ring 31, a The stop pin 32 and the anti-slip positioning buckle 35, both ends of the webbing 34 are in a rope structure, that is, both ends of the ordinary webbing are folded back for a small section and sewn into a rope-like structure, and the rope-like structure can just insert a locking pin 32. The lower guide ring 31 replaces the commonly used lower end fixing anchor piece 37, so that the upper and lower ends of the webbing 34 can move freely; the two sides of the mandrel 71 are symmetrically opened with two strip-shaped grooves, and a set of rope ends of the webbing 34 can be This passes through the interior of the mandrel 71, and the locking pin 32 is inserted so that the end of the webb...

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Abstract

The invention discloses an automobile active type pre-tightening safety belt, and belongs to the technical field of passenger injury protection during automobile collision accidents. The safety belt comprises a direct current motor, a transmission system, a retractor and a weaving belt kit, wherein the direct current motor is connected with the transmission system, and responds to a control signal of an accident pre-tightening device to work, the transmission system is connected with the direct current motor, and the decelerated power of the motor is transmitted to a one-way device and the retractor. The safety belt has the advantages that a weaving belt double-side pre-tightening structure is adopted, so the safety weaving belt can be simultaneously retracted at the shoulder belt part and the waist belt part to reach the double-side pre-tightening purpose, the wearing gap between a shoulder belt and a waist belt is eliminated, the body forward movement amount of a passenger during collision accidents is obviously reduced, and the slippage of the passenger is prevented; by integrating the force limiting and emergency locking functions, the collision injury to the passenger is minimized.

Description

technical field [0001] The invention relates to a occupant injury protection device in an automobile collision accident, belonging to the field of automobile safety, and further relates to an automobile active pretensioning seat belt. Background technique [0002] Seat belts are an indispensable accessory for occupant restraint systems. my country's automobile crash safety regulations stipulate that all cars must be equipped with seat belts. Relevant experimental studies also show that the use of seat belts is the most effective way to reduce or avoid injuries in the occupant restraint system. [0003] Generally, for the comfort of the occupant, the pre-tightening force of the seat belt should not be too large, and there is always a certain gap between the seat belt and the human body. When the occupant's clothes are thick, the gap will be larger. In the event of a collision, this gap will reduce the effective range of the seat belt and reduce the effectiveness of the seat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R22/46
Inventor 曹立波欧阳志高李靖曹心成
Owner HUNAN UNIV
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