CN203255131U - Improved automobile safety airbag device and folding tool thereof - Google Patents

Abstract

The utility model relates to the technical field of automobile airbags, in particular to an improved automobile safety airbag device and a folding tool thereof. The improved automobile safety airbag device comprises an airbag and a gas generator, wherein the top of the airbag is connected with the gas generator in a hung mode, and the folding portion of the airbag is located below the gas generator. The improved automobile safety airbag device is characterized in that the folding width of the topmost folding layer of the folding portion of the airbag is greater than that of the bottommost folding layer of the airbag, and the folding width of any one folding layer is greater than or equal to that of one lower adjacent folding layer; the upper side of the overall side face of the airbag is wide, the lower side of the overall side face of the airbag is narrow, and the overall side face of the airbag is symmetrical about the center. Compared with the prior art, the improved automobile safety airbag device guarantees that the airbag is vertically unfolded between a driver and a steering wheel and between a passenger and an instrument board all the time according to the design idea. Meanwhile, the airbag is filled in the thickness direction of the airbag, and the ideal airbag is formed.

Description

A kind of improved Automotive Safety Air Bags and folding frock thereof

Technical field

The utility model relates to the automotive airbag technical field, specifically a kind of improved Automotive Safety Air Bags and folding frock thereof.

Background technology

Air bag device in most power actuated vehicles, all is equipped with at present, wherein, traditional airbag device for drivers is installed in the bearing circle, and copilot's air bag device is installed in the front panel, and correlation technique and manufacturing process be comparative maturity and being used widely.But traditional air bag device need to be put respectively quick-fried airbag device for drivers and copilot's air bag device, and the installation site of air bag device in bearing circle and instrument carrier panel taken a large amount of spaces, and moulding and the design of bearing circle and instrument carrier panel added a lot of restrictions.

Based on above products characteristics, at present advanced in the world professional air bag device supplier begun to research and develop a kind of take up room little, the air bag device at low-cost, performance-oriented integral type front row is once put quick-fried driver side and the copilot's side airbag device of launching simultaneously.This technology has formed blank at present, also prepares to be applied to put into practice vehicle in constantly improving.

The air bag device at general integral type front row is not being put when quick-fried at ordinary times, its airbag folding storage in roof of the vehicle near the Windshield place.When automobile bumped, air bag device point was quick-fried, and airbag is washed the ceiling plaque open, and drops down is full of between chaufeur and the bearing circle and the space between occupant and the instrument carrier panel, plays protection chaufeur and occupant's function.

Because the product performance of the air bag device self at integral type front row; its position and expansion direction with respect to the car interior trim is very crucial; can be related to air bag device provide enough protections to the occupant, and the direction when wherein airbag folding determined its initial deployment.The airbag of traditional air bag device generally adopts the serration method for folding of folding width equalization, i.e. airbag one lamination one deck, and every layer all to do 180 degree folding, and the folding width of each foldable layer is consistent, as depicted in figs. 1 and 2.The defective of this method for folding is the great variety that the fine difference of every one deck folding width can cause the airbag expanded angle; air bag device for the integral type front row; this rushes at chaufeur and occupant and personnel is produced injury in the time of may causing airbag to launch; perhaps airbag expansion action is stopped by other part in the car and can not be deployed into predetermined ideal position, thereby causes the reduction of air bag device protective value even lose defencive function fully.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and airbag is folded into the shape that the side is wide at the top and narrow at the bottom and symmetry placed in the middle generally, and approximate del or inverted trapezoidal to guarantee the airbag expansion direction, realize best protection effect.

For achieving the above object, design a kind of improved Automotive Safety Air Bags, comprise airbag, gas generator, the top-hung of described airbag is connected on the gas generator, the gas generator below is the folding part of airbag, it is characterized in that: the folding width of the foldable layer of the superiors of the folding part of airbag is greater than the folding width of the foldable layer of the bottom of airbag, and any folding width of the foldable layer of the lower floor of the folding width of the foldable layer of one deck 〉=adjacent, the side of airbag totally is the shape of wide at the top and narrow at the bottom and symmetry placed in the middle; The width of the foldable layer of the superiors of described airbag is greater than the width of the lower house of gas generator.

A kind of folding frock of improved Automotive Safety Air Bags, it is characterized in that: comprise left tooth plate, right tooth plate, described left tooth plate, right tooth plate adopt respectively establishes the pectination that some horizontal plates of being parallel to each other consist of from top to bottom in a side of the backboard of erectting, left tooth plate and right tooth plate are arranged in opposite directions.

Take the horizontal plate of the superiors as the ground floor horizontal plate, the width of the ground floor horizontal plate of left tooth plate equals half of width of the second layer horizontal plate of left tooth plate, the width of the second layer horizontal plate of left tooth plate equals the width of the ground floor horizontal plate of right tooth plate, the width of the 3rd layer of horizontal plate of left tooth plate equals the width of the second layer horizontal plate of right tooth plate, and the rest may be inferred.

Begin horizontal plate meter to the bottom from the second layer horizontal plate of left tooth plate, the width of the second layer horizontal plate of left tooth plate is greater than the width of the horizontal plate of the bottom of left tooth plate, and begin horizontal plate meter to the bottom, the width of the horizontal plate of adjacent lower floor on the width of any one deck horizontal plate of left tooth plate 〉=left tooth plate from the second layer horizontal plate of left tooth plate.

The utility model is compared with prior art, adopt the shape design of wide at the top and narrow at the bottom and symmetry placed in the middle, each point can both guarantee airbag center end points direction expansion to the bottom from root along line of centers when quick-fried, avoided airbag to launch to vehicle body the place ahead along Windshield and be stuck between bearing circle and the Windshield, also avoid airbag to rush at chaufeur and occupant to the vehicle body rear and injured chaufeur and occupant, guaranteed airbag all the time by the design idea vertical expansion between chaufeur and the bearing circle and between occupant and the instrument carrier panel, simultaneously airbag is full of along self thickness direction, form the desirable air cushion of shape, in collision process, provide critical buffer protection to chaufeur and occupant; The utility model high conformity, dependable performance, efficiently solve the technical barrier of air bag device in practical application at integral type front row, and implementation cost is low, help the applying of air bag device at integral type front row, also can be applicable to side seat air bag device and side curtain airbag device.

Description of drawings

Fig. 1 is the scheme drawing of the air bag device of the original airbag folding mode of employing.

Fig. 2 is the sectional schematic diagram of air bag device shown in Figure 1.

Fig. 3 is the scheme drawing of the air bag device in the utility model.

Fig. 4 is the sectional schematic diagram of a kind of air bag device among the utility model embodiment.

Fig. 5 is the sectional schematic diagram of a kind of air bag device among another embodiment of the utility model.

Fig. 6 adopts the folding frock of airbag to come the initial condition scheme drawing of folding up air bag among the utility model embodiment.

Fig. 7 is the process status scheme drawing that adopts the folding frock folding up air bag of airbag among the utility model embodiment.

Fig. 8 after adopting the folding frock of airbag to fold airbag in the utility model, takes out the scheme drawing that forms after the folding frock of airbag.

The specific embodiment

Now the utility model is further described by reference to the accompanying drawings.

Embodiment 1

Referring to Fig. 3 and Fig. 4, this example is take the air bag device at integral type front row as example, the two ends of airbag 5 roots are separately fixed between the lower house 4 of the upper shell 1 of gas generator and gas generator, the folding width of the foldable layer of the uppermost ground floor of airbag is slightly larger than the width of the lower house 4 of gas generator, afterwards when folding every one deck successively, the width R that folding width reduces to equate than last layer, R＞0 is until airbag is all folded good.After airbag folds, with tear-strap or sleeve pipe the airbag that folds is fixed, and is installed in the vehicle body.Put when quick-fried tear-strap or sleeve pipe splits at air bag device; the folding part of airbag can begin from the foldable layer of going up most the longitudinal centerline drops down along the airbag folding part; guaranteed the conformability of expansion direction, and unfoldable shape is stable, the air bag device protective value is guaranteed.

Above-mentioned folding effect can be realized by manual mode, but efficient is not high, in order to enhance productivity, also can realize by frock, such as folding frock of design, this folding frock comprises left tooth plate 71, right tooth plate 72, and left and right two tooth plates adopt respectively and establish from top to bottom the pectination that some horizontal plates of being parallel to each other consist of in a side of the backboard of erectting, spacing between the neighbouring horizontal plate can be the same, and left tooth plate and right tooth plate will be arranged in opposite directions during practical operation.Take the horizontal plate of the superiors as the ground floor horizontal plate, the width of the ground floor horizontal plate of left tooth plate equals half of width of the second layer horizontal plate of left tooth plate, the width of the second layer horizontal plate of left tooth plate equals the width of the ground floor horizontal plate of right tooth plate, the width of the 3rd layer of horizontal plate of left tooth plate equals the width of the second layer horizontal plate of right tooth plate, and the rest may be inferred.Begin horizontal plate meter to the bottom from the second layer horizontal plate of left tooth plate 71, the width of the second layer horizontal plate of left tooth plate 71 is greater than the width of the horizontal plate of the bottom of left tooth plate, and begin horizontal plate meter to the bottom from the second layer horizontal plate of left tooth plate 71, the width of the horizontal plate of adjacent lower floor on the width of any one deck horizontal plate of left tooth plate 〉=left tooth plate, the width of horizontal plate successively decreases from top to bottom successively on this routine right tooth plate.As follows step realization during concrete operations:

1, referring to Fig. 3 and Fig. 6, first the Assembly of the parts such as the lower house 4 of the upper shell 1 of gas generator, gas generator, gas generator body 2, bolt 3 and airbag 5 are integral, and fix with frock, allowing needs folding airbag partly to naturally droop, and left tooth plate 71 and right tooth plate 72 are placed on respectively the both sides of the folding part of airbag;

2, as shown in Figure 7, again left tooth plate 71 and right tooth plate 72 past in opposite directions directions are pushed away, in the space that left tooth plate 71 and right tooth plate 72 intersect to form, the horizontal plate that will guarantee the superiors of left tooth plate 71 here is positioned at the top of horizontal plate of the superiors of right tooth plate 72 the airbag fast folding;

3, shown in Fig. 8, after folding the putting in place, again with left tooth plate 71 and right tooth plate 72 respectively to the left and right pull open, airbag 5 namely is folded into the shape that the side is isosceles trapezoid wide at the top and narrow at the bottom, then upwards draw airbag 5 in, adopt again tear-strap or sleeve pipe that the airbag that folds is fixed.

Also the left and right tooth plate rail that folds frock can be connected on the work top, and the similar scissors-like X-shaped movable arm that adopts arm crossing to form, the left front end of X-shaped movable arm, right front ends connect respectively the left and right tooth plate front end face of folding frock, thereby finish the folding work of airbag by the folding of operation X-shaped movable arm.

The bottom rail that perhaps will fold the left and right tooth plate of frock is connected on the work top, two cylinders are fixed on respectively the both sides of left and right tooth plate in opposite directions, the cylinder rod of right latter two cylinder connects respectively the back of the backboard of left and right tooth plate, controls the open and close movement of left and right tooth plate by the linear reciprocation fore and aft motion of cylinder rod.

Embodiment 2

Can also do the adjustment of details on the basis of above-described embodiment 1, the width that every one deck foldable layer reduces than last layer foldable layer can be different.Referring to Fig. 5, decrement value R1, R2, the R3 of each foldable layer width are unequal mutually, but the width of each foldable layer guarantees to be decline trend from top to bottom.Such method for folding also can be realized function similar to Example 1, and R1＞0, R2＞0, R3＞0 are adjusted in the also corresponding meeting of width of the horizontal plate of different levels to some extent on the left and right tooth plate of certainly supporting folding frock.

Embodiment 3

So that airbag is folded four layers as example, the width of the 2nd layer of foldable layer is consistent with the width of the 3rd layer of foldable layer in addition, and the width of the 4th layer of foldable layer is less than the width of the 3rd layer of foldable layer.Such method for folding also can be realized function similar to Example 1.The width of the horizontal plate of each level of the left and right tooth plate in this example in the corresponding folding frock also adjusts accordingly.

Airbag has four layers of foldable layer among above-mentioned 3 embodiment, for other application scenario, the folding number of plies of airbag can be more or less, the width value that corresponding every layer of foldable layer reduces than last layer foldable layer also can be different, be generally the shape of wide at the top and narrow at the bottom and symmetry placed in the middle as long as guarantee final formation, be generally del or inverted trapezoidal.

Above-described embodiment is that same method also can be applied on side seat safety air bag and the side curtain airbag as an example of the air bag device at integral type front row example.

Claims (1)

1. improved Automotive Safety Air Bags, comprise airbag, gas generator, the top-hung of described airbag is connected on the gas generator, the gas generator below is the folding part of airbag, it is characterized in that: the folding width of the foldable layer of the superiors of the folding part of airbag (5) is greater than the folding width of the foldable layer of the bottom of airbag, and any folding width of the foldable layer of the lower floor of the folding width of the foldable layer of one deck 〉=adjacent, the side of airbag totally is the shape of wide at the top and narrow at the bottom and symmetry placed in the middle; The width of the foldable layer of the superiors of described airbag (5) is greater than the width of the lower house (4) of gas generator.

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