CN205059524U - Be applied to automotive active safety systems's safety belt - Google Patents

Abstract

The utility model discloses a be applied to automotive active safety systems's safety belt, including the safety belt, be provided with compression chamber in the safety belt, the gasbag is folding to be placed in compression chamber, is equipped with in one side that the seat is pressed close to to the safety belt and cracks, and the tip of gasbag is equipped with the air inlet, is equipped with curved depressed part on the gasbag middle part is just to the lateral wall that cracks, is provided with tight mouthful on the inner wall at depressed part middle part, choose the position of two differences on the inner wall in the middle part of the depressed part to a plurality of independent folds of formation are sewed up for the starting point through folding the gasbag inner wall to the position, and a plurality of folds are the tight mouth of airflow channel formation that the annular distribution just constitutes. Topmost contact segment is shoulder to chest promptly between safety belt and the last truck, the belly side is regional, and the utility model discloses the middle part of well gasbag sets up curved depressed part, this depressed part with contact segment suit, the injury is launched to direct the causing this contact segment in gasbag behind collision prevention middle part.

Description

A kind of safety strap being applied to automobile active safety system

Technical field

The utility model relates to Intelligent Vehicle Initiative Security System, specifically refers to a kind of safety strap being applied to automobile active safety system.

Background technology

In automotive safety research, air bag, as the auxiliary configuration of vehicle body passive satety, is day by day subject to people's attention.When automobile and obstacle collision rift, be called primary collision, occupant and car inner member collide, be called secondary collision, a gassiness air cushion opened rapidly by air bag after primary collision, before secondary collision, " flutter on air cushion " when occupant is moved because of inertia thus relax impact that occupant is subject to and absorb collision energy, alleviating the extent of injury of occupant.Air bag is extensive in automotive interior application, comprises operator seat safety air bag, co-driver safety air bag, front-seat side airbag, gas curtain and knee air bag etc.Safety air bag is generally made up of sensor, automatically controlled single, gas generator, air bag, afterflow device etc., forms air bag module together with usual gas generator does with air bag etc.Sensor experiences auto against intensity, and the signal experienced is sent to controller, the signal of controller receiving sensor is gone forward side by side row relax, when it judges to be necessary to open air bag, send ignition signal immediately with traps gas producer, after gas generator receives ignition signal, rapid fire well produces a large amount of gas to airbag aeration.

But safety air bag of the prior art exists following defect, and air bag system belongs to passive safety system, safety guard-safeguard cannot be moved to passenger real alms giver; When vehicle does not collide; due to emergency case; as carried out sudden stop at high speeds; now air bag system all can not start; and due to the sharply change of motoring condition; even if navigating mate, under the protection of safety strap, comparatively serious injury can not occur, but just because of the restriction of safety strap to trunk on chaufeur, the upper trunk of navigating mate is made to be subject to obvious ankle injury.

Utility model content

The purpose of this utility model is to provide a kind of safety strap being applied to automobile active safety system, starts the upper trunk of air bag to navigating mate and protects, avoid navigating mate to occur serious ankle injury when motoring condition sharply changes.

The purpose of this utility model is achieved through the following technical solutions:

A kind of safety strap being applied to automobile active safety system, comprise safety strap, compression chamber is provided with in described safety strap, airbag fold is placed in compression chamber, and be provided with in the side that described safety strap presses close to seat and crack, the end of described air bag is provided with admission port, in the middle part of air bag positive symmetry slot sidewall on be provided with the depressed part of arc, and inwall in the middle part of described depressed part is provided with tight mouth; Inwall is chosen two different some positions in the middle part of described depressed part, with described some position for starting point forms multiple independently fold by carrying out plicating suture to air bag inwall, multiple fold distributes ringwise and the gas channel formed forms described tight mouth, and the internal diameter of described tight mouth is less than the minimum diameter on depressed part top.When driving a vehicle dynamically by when reducing rapidly at a high speed, air bag pours into gas by air pump fast by admission port, air bag then realizes rapid expanding, the volume expansion part of air bag starts to eject by cracking, on safety strap body ties navigating mate tight before trunk, air bag just directly contacts with torso portion on chaufeur, utilizes the high efficiency buffer of air bag, to reduce the tie effect of safety strap to upper trunk.And, in the process that driving states changes rapidly, the air pump be connected with automobile active safety system is started working, directly fast aeration is carried out to air bag, and topmost contact portion is shoulder to chest, belly side area between safety strap and upper trunk, and the middle part of air bag arranges the depressed part of arc in the utility model, this depressed part and described contact portion adapt, and prevent from directly causing this contact portion in the middle part of the air bag of collision rift launching injury.

As everyone knows, to in airtight cavity during insufflation gas, air-flow flows to the meiobar of cavity usually, after being about to the cavity bottom filling relative with inflow point, whole cavity is just filled complete by gas, therefore in the utility model, for shoulder to the maximum weighted part of chest region, the air bag of this part then requires to be filled fast, to reduce hard defects or the appearance of soft tissue injury in upper trunk, the middle part of depressed part is provided with tight mouth, depressed part is directly divided into the epicoele and cavity of resorption that are interconnected by this tight mouth, and the function of tight mouth is the free air diffuser reduced between epicoele and cavity of resorption, the gas in air bag is made preferentially to fill epicoele, make its dilation and maximum weighted part contact, and then the injury rate greatly reduced in moderating process.Flow diameter between the epicoele of depressed part and cavity of resorption directly changes by arranging of tight mouth, namely the top of air bag can be met by Fast Filling, and when air bag top cubic expansion to a certain extent time, lignilite on multiple folds adjacent under the squeezing action of air pressure ruptures in succession, internal diameter size in the middle part of depressed part is recovered again, the air-flow injected is then quick under-filled by air bag, and now whole air bag is applied on trunk completely, to prevent the Local Damaged of upper trunk.

Described air bag is fixed on the inwall of compression chamber away from the sidewall cracked.As preferably; crack for avoiding air bag direct overall ejection after expansion; air bag is fixed on the inwall of compression chamber away from the sidewall cracked; limit the expansion direction of air bag simultaneously; namely limit the positive symmetry slot of expansion direction of air bag, improve air bag to the full extent to the protected effect of upper trunk.

The utility model compared with prior art, has following advantage and beneficial effect:

1, the utility model for shoulder to the maximum weighted part of chest region, the air bag of this part then requires to be filled fast, to reduce hard defects or the appearance of soft tissue injury in upper trunk, the middle part of depressed part is provided with tight mouth, depressed part is directly divided into the epicoele and cavity of resorption that are interconnected by this tight mouth, and the function of tight mouth is the free air diffuser reduced between epicoele and cavity of resorption, the gas in air bag is made preferentially to fill epicoele, make its dilation and maximum weighted part contact, and then greatly reduce the injury rate in moderating process;

2, air bag is fixed on the inwall of compression chamber away from the sidewall cracked by the utility model, limits the expansion direction of air bag simultaneously, namely limits the positive symmetry slot of expansion direction of air bag, improves air bag to the full extent to the protected effect of upper trunk.

Accompanying drawing explanation

Accompanying drawing described herein is used to provide the further understanding to the utility model embodiment, forms a application's part, does not form the restriction to the utility model embodiment.In the accompanying drawings:

Fig. 1 is the utility model structural representation;

Fig. 2 is the structural representation of air bag;

Fig. 3 is the structural representation of tight mouth;

Fig. 4 is the section-drawing of tight mouth;

Mark and corresponding parts title in accompanying drawing:

1-safety strap, 2-crack, 3-air bag, 4-depressed part, the tight mouth of 5-, 6-admission port, 7-fold.

Detailed description of the invention

Clearly understand for making the purpose of this utility model, technical scheme and advantage, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only for explaining the utility model, and conduct is not to restriction of the present utility model.

Embodiment 1

As shown in Fig. 1 ~ Fig. 4, the present embodiment comprises safety strap 1, compression chamber is provided with in described safety strap 1, air bag 3 is folding to be placed in compression chamber, and be provided with in the side that described safety strap 1 presses close to seat and crack 2, the end of described air bag 3 is provided with admission port 6, in the middle part of air bag 3 positive symmetry slot 2 sidewall on be provided with the depressed part 4 of arc, and inwall in the middle part of described depressed part 4 is provided with tight mouth 5; Inwall is chosen two different some positions in the middle part of described depressed part 4, with described some position for starting point forms multiple independently fold 7 by carrying out plicating suture to air bag 3 inwall, multiple fold 7 distributes ringwise and the gas channel formed forms described tight mouth 5, and the internal diameter of described tight mouth 5 is less than the minimum diameter on depressed part 4 top.

When driving a vehicle dynamically by when reducing rapidly at a high speed, air bag 3 pours into gas by air pump fast by admission port 6,3, air bag realizes rapid expanding, the volume expansion part of air bag 3 starts 2 to eject by cracking, on safety strap 1 body ties navigating mate tight before trunk, air bag 3 just directly contacts with torso portion on chaufeur, utilizes the high efficiency buffer of air bag 3, to reduce the tie effect of safety strap 1 to upper trunk.And, in the process that driving states changes rapidly, the air pump be connected with automobile active safety system is started working, directly fast aeration is carried out to air bag 3, and topmost contact portion is shoulder to chest, belly side area between safety strap 1 and upper trunk, and the middle part of air bag 3 arranges the depressed part 4 of arc in the utility model, this depressed part 4 adapts with described contact portion, prevents from directly causing this contact portion in the middle part of the air bag 3 of collision rift launching injury.

As everyone knows, to in airtight cavity during insufflation gas, air-flow flows to the meiobar of cavity usually, after being about to the cavity bottom filling relative with inflow point, whole cavity is just filled complete by gas, therefore in the utility model, for shoulder to the maximum weighted part of chest region, 3, the air bag requirement of this part is filled fast, to reduce hard defects or the appearance of soft tissue injury in upper trunk, the middle part of depressed part 4 is provided with tight mouth 5, depressed part 4 is directly divided into the epicoele and cavity of resorption that are interconnected by this tight mouth 5, and the function of tight mouth 5 is the free air diffusers reduced between epicoele and cavity of resorption, the gas in air bag 3 is made preferentially to fill epicoele, make its dilation and maximum weighted part contact, and then the injury rate greatly reduced in moderating process.Flow diameter between the epicoele of depressed part 4 and cavity of resorption directly changes by arranging of tight mouth 5, namely the top of air bag 3 can be met by Fast Filling, and when air bag 3 top cubic expansion to a certain extent time, lignilite on multiple folds 7 adjacent under the squeezing action of air pressure ruptures in succession, internal diameter size in the middle part of depressed part 4 is recovered again, the air-flow injected is then quick by under-filled for air bag 3, and now whole air bag 3 is applied on trunk completely, to prevent the Local Damaged of upper trunk.

As preferably; 2 are cracked for avoiding air bag 3 direct overall ejection after expansion; by air bag 3 away from crack 2 a sidewall be fixed on the inwall of compression chamber; limit the expansion direction of air bag 3 simultaneously; namely limit the positive symmetry slot 2 of expansion direction of air bag 3, improve air bag 3 to the full extent to the protected effect of upper trunk.

Above-described detailed description of the invention; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only detailed description of the invention of the present utility model; and be not used in restriction protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims (2)

1. one kind is applied to the safety strap of automobile active safety system, comprise safety strap (1), it is characterized in that: in described safety strap (1), be provided with compression chamber, air bag (3) is folding to be placed in compression chamber, and be provided with crack (2) in the side that described safety strap (1) presses close to seat, the end of described air bag (3) is provided with admission port (6), the sidewall of the positive symmetry slot (2) in air bag (3) middle part is provided with the depressed part (4) of arc, and is provided with tight mouth (5) on the inwall at described depressed part (4) middle part; Described depressed part (4) middle part inwall chooses two different some positions, with described some position for starting point forms multiple independently fold (7) by carrying out plicating suture to air bag (3) inwall, multiple fold (7) distributes ringwise and the gas channel formed forms described tight mouth (5), and the internal diameter of described tight mouth (5) is less than the minimum diameter on depressed part (4) top.

2. a kind of safety strap being applied to automobile active safety system according to claim 1, is characterized in that: described air bag (3) is fixed on the inwall of compression chamber away from the sidewall of crack (2).