CN111923861A - Automobile safety airbag door cover mounting structure - Google Patents

Abstract

The invention discloses an installation structure of an automobile airbag door cover. The airbag door cover is installed on a casing. The invention is characterized in that: the back of the airbag door cover is provided with a structural weakening groove, and the airbag door cover is divided into two parts by the structural weakening groove. The fixed part and the ejection area arranged in the middle, the ejection area of the airbag door cover is connected to the casing by a pull strap. The automobile airbag door cover installation structure of the invention has the advantages of simple structure, high safety, better applicability, strong practicability and better application prospect.

Description

Automobile airbag door cover installation structure

technical field

The invention belongs to the technical field of automobiles, and more particularly, relates to an installation structure of an automobile airbag door cover.

Background technique

The structure of the existing driver's airbag door cover needs to be weakened, mainly to realize the smooth deployment of the airbag after the airbag is ignited, and to effectively protect the safety of the occupants.

The driver's airbag door cover is based on the modeling characteristics of the LOGO. Usually, the commonly used weakened structures are "U" and "H"-shaped tear lines to ensure that the driver's airbag door cover is ignited when the airbag controller is issued. The air bag can be deployed smoothly when commanded, but for the driver's airbag door cover with a plated decorative ring (the external dimension of the decorative ring is between φ110 ~ φ120mm), use the "U" or "H"-shaped tear line. The weakened structure may cause the door cover to fly out to varying degrees during the overall overturning process of the driver's airbag door cover, causing injury to the occupants.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the problems existing in the prior art, and to provide a vehicle airbag door cover installation structure with simple structure, high safety and better applicability.

In order to achieve the above purpose, the technical solution adopted by the present invention is as follows: the provided structure for the installation of an airbag door cover of an automobile, the airbag door cover is installed on the housing, and it is characterized in that: the back of the airbag door cover is provided with a structure weakening groove , the airbag door cover is divided into a fixed part and an ejection area arranged in the middle by the structural weakening groove, and the ejection area of the airbag door cover is connected to the casing by a pull strap.

In order to make the above-mentioned technical solutions more detailed and concrete, the present invention also provides the following further preferred technical solutions to obtain satisfactory practical effects:

The airbag door cover is provided with an installation groove for installing a decorative strip, and the decorative strip is clamped and installed on the installation groove.

The upper end of the drawstring protrudes downward through the through hole on the installation slot.

The lower end of the casing is provided with a support plate, and the lower end of the drawstring is fixedly connected to the casing through a mounting plate.

The mounting plate is provided with mounting holes, and bolts pass through the mounting holes and are fastened to the support plate by nuts.

The structural weakening groove is an annular structural groove arranged on the back of the airbag door cover, and is arranged near the edge of the airbag door cover.

The cross section of the structural weakening groove is a V-shaped structure.

A gas generator and an air bag are arranged in the cavity formed by the casing and the airbag door cover.

Compared with the prior art, the present invention has the following advantages: the automobile airbag door cover installation structure of the present invention has the advantages of simple structure, high safety, better applicability, strong practicability and better application prospect.

Description of drawings

The content expressed in the accompanying drawings of this specification and the symbols in the drawings are briefly described below:

1 is a schematic diagram of the installation structure of an automobile airbag door cover of the present invention;

2 is a schematic diagram of the installation structure of an automobile airbag door cover of the present invention;

3 is a schematic structural diagram of the airbag door cover of the present invention;

Fig. 4 is the sectional view of the installation structure of the automobile airbag door cover of the present invention;

Marked as: 1. Airbag door cover, 11. Structural weakening groove, 2. Shell, 3. Decorative strip, 4. Pull strap, 5. Mounting plate, 6. Bolt, 7. Gas generator, 8. Gas bag.

Detailed ways

The specific embodiments of the present invention will be described in further detail below through the description of the embodiments with reference to the accompanying drawings.

As shown in Figures 1, 2 and 4, the airbag door cover 1 is installed on the housing 2, the back of the airbag door cover 1 is provided with a structural weakening groove 11, and the airbag door cover 1 The structural weakening groove 11 is divided into a fixed part and an ejection area arranged in the middle. The ejection area of the airbag door cover 1 is connected to the casing 2 by a pull strap 4 . When a collision occurs, the gas generator 7 generates gas to inflate the air bag 8. Since the air bag door cover 1 is provided with a structural weakening groove 11, the air bag door cover 1 is broken at the position of the weakening groove 11 due to the impact of the elastic force of the air bag 8, and the ejection area is It is restricted from flying out under the action of the pulling belt 4. The automobile airbag door cover installation structure of this structure has high safety, reduces the development difficulty and material requirements of the airbag door cover 1, and has a simple and reliable structure.

In the present invention, as shown in FIGS. 1 and 4 , the airbag door cover 1 is provided with an installation groove for installing the decorative strip 3 , and the decorative strip 3 is snap-fitted on the installation groove. The upper end of the drawstring 4 is protruded downward through the through hole on the installation slot, and is then covered by a decorative strip. This structure has a reasonable arrangement and good aesthetics.

The installation fasteners of the drawstring 4 can be bolts, nuts, metal clips, or a knotted rope can be directly sewn on the drawstring 4 to form a fixation. In an embodiment of the present invention, as shown in FIGS. 3 and 4 , the lower end of the casing 2 is provided with a support plate, and the lower end of the drawstring 4 is fixedly connected to the casing 2 through the mounting plate 5 . The mounting plate 5 is provided with mounting holes, and the bolts 6 pass through the mounting holes and are fastened to the support plate by nuts.

In the present invention, the structural weakening groove 11 is an annular structural groove arranged on the back of the airbag door cover 1 , and is disposed near the edge of the wall of the airbag door 1 cover. The cross-section of the structural weakening groove 11 is V-shaped structure, and the airbag door cover is broken by the structural weakening groove 11 when impacted, which helps the air bag to pop out to form protection, and prevents it from flying out under the action of the pull belt 4 and causing injury to the occupants.

In the present invention, the cavity formed by the housing 1 and the airbag door cover 1 is provided with a gas generator 7 and an airbag 8, which are conventional airbag components.

In the present invention, the drawstring 4 can be a nylon bag. When installing, the upper end of the drawstring 4 is first assembled on the airbag door cover 1, the decorative strips 3 are separately installed on the airbag door cover 1, the air bag 8 and the gas generator 7 are connected to the shell. The body 2 is assembled separately, and the airbag door cover after being divided together is installed on the casing 2.

The present invention provides a new weakening structure of the airbag door cover. The pulling belt 4 and the structural weakening groove 11, namely the weakening line, are provided, which are beneficial to the deployment of the driver's airbag. The air bag 8 pops out the driver's airbag door cover. It restrains the driver's airbag door cover, ensures the smooth deployment of the driver's airbag door cover, and plays the role of smooth deployment of the driver's airbag. The utility model has the advantages of good safety, simple and reliable structure.

The invention provides a driver airbag door cover weakening structure, reduces the development difficulty of the door cover weakening, and provides a new driver airbag door cover weakening structure with a decorative ring with an external dimension between φ110mm and φ120mm. The solution is suitable for the weakening of any airbag door cover, which reduces the development difficulty and material requirements of the airbag door cover, and the structure is simple and reliable.

The car airbag door cover structure of the present invention is provided with a decorative ring on the airbag door cover 1, and the back side of the driver's airbag door cover near the decorative ring is pierced and weakened according to the shape, and a pulling belt 4 is also provided. The cover pops up, and the door cover is constrained to unfold smoothly and not fly out through the function of the pull strap 4 acting as a hinge. The pull strap 4 attached to the weakening structure of the driver's airbag door cover is connected to the support plate.

The vehicle airbag door cover installation structure of the invention has the advantages of simple structure, high safety, better applicability, strong practicability and better application prospect.

The present invention has been exemplarily described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned manner, as long as various insubstantial improvements made by adopting the method idea and technical solution of the present invention or directly applied to other occasions, All fall within the protection scope of the present invention.

Claims (8)

1. Car air bag door closure mounting structure, gasbag door closure install on the casing, its characterized in that: the back of the air bag door cover is provided with a structure weakening groove, the air bag door cover is divided into a fixing part and an ejection area arranged in the middle by the structure weakening groove, and the ejection area of the air bag door cover is connected to the shell through a drawstring.

2. The door cover mounting structure for an automotive air bag according to claim 1, characterized in that: the air bag door cover is provided with a mounting groove for mounting the decorative strip, and the decorative strip is clamped and mounted on the mounting groove.

3. The door cover mounting structure for an automotive air bag according to claim 2, characterized in that: the upper end of the pull belt penetrates out of the through hole in the mounting groove.

4. The door cover mounting structure for an automotive air bag according to claim 3, characterized in that: the lower end of the shell is provided with a supporting plate, and the lower end of the pull belt is fixedly connected to the shell through a mounting plate.

5. The door cover mounting structure for an automotive air bag according to claim 4, characterized in that: and the mounting plate is provided with a mounting hole, and a bolt passes through the mounting hole and is fastened and mounted on the supporting plate through a nut.

6. The door cover mounting structure for an automotive air bag according to claim 1, characterized in that: the structure weakening groove is an annular structure groove arranged on the back of the airbag door cover and is arranged close to the edge of the airbag door cover.

7. The door cover mounting structure for a backup vehicle airbag according to claim 6, characterized in that: the cross section of the structure weakening groove is of a V-shaped structure.

8. The vehicle airbag door cover mounting structure according to any one of claims 1 to 7, wherein: and a gas generator and a gas bag are arranged in a cavity formed by the shell and the gas bag door cover.

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