Automobile active type pre-tightening safety belt

An active, seat belt technology, applied in belt tensioners and other directions, can solve the problems of increasing the risk of collision between legs and car interiors, neck injury of seat belt occupants, insufficient pre-tightening of the belt, and eliminating the wearing gap. , The structure is simple, the effect of reducing occupant injury

Inactive Publication Date: 2014-06-11
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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  • Automobile active type pre-tightening safety belt
  • Automobile active type pre-tightening safety belt
  • Automobile active type pre-tightening safety belt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] like figure 1 As shown, the accident warning device 1 is connected to the circuit at one end of the DC motor 2, which can judge whether an accident has occurred according to the degree of danger of the current driving state, the abnormal dynamic response of the vehicle, and the driver's intense manipulation behavior, and send out a warning 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 splined, and the transmission system 4 and the one-way device 8 are installed in the groove of the aluminum casing 6, so the movement and power are decelerated through the transmission system 4, and then transmitte...

Embodiment 2

[0058] like Figure 6-9 As shown, the difference between this preferred embodiment and Embodiment 1 is that it adopts the double-sided pre-tightening structure of the seat belt. Stop pin 32 and anti-slip positioning buckle 35, both ends of webbing 34 are rope structures, that is, both ends of ordinary webbing are all folded back for a small section and sewed to be rope-like, and this rope-like structure can just insert a locking pin 32 The lower guide ring 31 replaces the lower end fixed anchor piece 37 that usually adopts, so that the upper and lower ends of the ribbon 34 can move freely; the two sides of the mandrel 71 are symmetrically provided with two strip grooves, and a set of rope ends of the ribbon 34 can be used by This passes through the inside of the mandrel 71, inserts the locking pin 32 so that this end of the webbing 34 is stuck in the first bar-shaped groove 7101 of the mandrel 71 and cannot be pulled out, and the other end of the webbing 34 passes through in t...

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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 passenger injury protection device in an automobile collision accident, which belongs to the field of automobile safety, and further refers to an automobile active pretensioning safety belt. Background technique [0002] Seat belts are an indispensable occupant restraint system accessory. my country's automobile collision safety regulations stipulate that all automobiles must be equipped with safety belts. Relevant experimental studies also show that the use of seat belts is the most effective way to reduce or avoid damage in occupant restraint systems. [0003] Generally, for the comfort of the occupant, the preload 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 thicker, the gap will be larger. In the event of a collision, this gap will reduce the effective reach of the seat belt and reduce the effectiveness of the seat b...

Claims

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Application Information

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Patent Type & Authority Applications(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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