阅读说明：本技术 一种气囊用基布 (Base cloth for air bag ) 是由 沈根华 于 2019-12-13 设计创作，主要内容包括：本发明公开了一种气囊用基布,包括基布本体、基布层和中间防撕裂层,所述基布本体内部的中间设置由中间防撕裂层,并且中间防撕裂层的上下两侧分别设置有第二弹性层和第一弹性层,并且第一弹性层的顶部设置有合成纤维面料层,第二弹性层的底部设置有基布层,所述基布本体的内部均匀设置有微型气孔,微型气孔与各个材料层之间垂直设置,并且微型气孔的上下两端贯穿基布本体。本发明通过设置由第一弹性布、TPU膜以及第二弹性布依次层叠设置并通过热熔加工贴合为一体结构的第一弹性层和第二弹性层,能够大大增强基布的弹性力度,增强基布产生的形变空间,能够降低气囊产生的撞击力,减小对人体造成伤害。(The invention discloses base cloth for an air bag, which comprises a base cloth body, a base cloth layer and a middle anti-tear layer, wherein the middle of the inner part of the base cloth body is provided with the middle anti-tear layer, the upper side and the lower side of the middle anti-tear layer are respectively provided with a second elastic layer and a first elastic layer, the top of the first elastic layer is provided with a synthetic fiber fabric layer, the bottom of the second elastic layer is provided with the base cloth layer, micro air holes are uniformly arranged in the base cloth body, the micro air holes are vertically arranged between the micro air holes and the material layers, and the upper end and the lower end of each micro air hole penetrate through the base cloth body. According to the invention, the first elastic layer and the second elastic layer which are sequentially stacked and bonded into an integral structure through hot melting processing are arranged on the first elastic cloth, the TPU film and the second elastic cloth, so that the elastic force of the base cloth can be greatly enhanced, the deformation space generated by the base cloth can be enhanced, the impact force generated by the airbag can be reduced, and the harm to the human body can be reduced.)

1. The utility model provides a base cloth for gasbag, includes base cloth body (1), base cloth layer (2) and middle anti-tear layer (6), its characterized in that: the base cloth comprises a base cloth body (1), and is characterized in that a middle anti-tear layer (6) is arranged in the middle of the interior of the base cloth body (1), a second elastic layer (4) and a first elastic layer (3) are respectively arranged on the upper side and the lower side of the middle anti-tear layer (6), a synthetic fiber fabric layer (5) is arranged on the top of the first elastic layer (3), a base cloth layer (2) is arranged at the bottom of the second elastic layer (4), micro air holes (7) are uniformly formed in the base cloth body (1), the micro air holes (7) are vertically arranged between the material layers, and the base cloth body (1) is penetrated through the upper end and the lower end of each micro air hole (7).

2. A base fabric for an airbag according to claim 1, characterized in that: the base cloth layer (2) is provided with a first single-face cloth layer (201), a first middle layer yarn (202), a second middle layer sand yarn (203) and a second single-face cloth layer (204), and the bottom surface of the first single-face cloth layer (201) is in contact with the top surface of the second single-face cloth layer (204).

3. A base fabric for an airbag according to claim 2, characterized in that: the first single-face cloth layer (201) and the second single-face cloth layer (204) are combined into a whole by sewing the first middle-layer yarns (202) and the second middle-layer sand yarns (203) in a staggered mode, and the first middle-layer yarns (202) and the second middle-layer sand yarns (203) are non-elastic yarns.

4. A base fabric for an airbag according to claim 1, characterized in that: second elastic layer (4) and first elastic layer (3) are provided with first elasticity cloth (401), TPU membrane (402) and second elasticity cloth (403) respectively to first elasticity cloth (401), TPU membrane (402) and second elasticity cloth (403) stack gradually and set up and laminate as an organic whole structure through hot melt processing, and evenly be provided with bleeder vent (4021) on TPU membrane (402).

5. A base fabric for an airbag according to claim 1, characterized in that: the middle anti-tear layer (6) is formed by weaving nylon yarns (602), and the nylon yarns (602) are woven in a hexagonal grid mode to form a honeycomb grid structure (601).

Technical Field

The invention relates to the technical field of base cloth of an air bag, in particular to base cloth for the air bag.

Background

In recent years, the installation rate of an airbag, which is one of automobile safety parts, has been rapidly increased, and the airbag is rapidly deployed by sensing an impact by a sensor and generating high-temperature and high-pressure gas from an inflator at the time of a collision accident of an automobile, thereby particularly preventing and protecting a head from colliding with a steering wheel, a front windshield glass, and a door glass when the body of a driver or a passenger flies in the direction of the impact, but the conventional airbag generally has the following defects:

1. the impact time of a common automobile accident is only 0.2s, the air bag popping time is 0.02s-0.04s, the instantaneous speed is as high as 300 km/h, the generated impact force is large, and the human body is easily damaged;

2. the structural strength of the air bag base cloth is not enough, high-temperature and high-pressure gas is exploded when being injected into the safety air bag, the temperature of waste gas generated after explosion is very high, and the gas can burn the skin of a person in the releasing process;

the air bag bursts through the pad and is rapidly unfolded in a very short time, and the air bag cannot be rapidly leaked and contracted, so that the condition of suffocation is easily caused.

Disclosure of Invention

The invention aims to provide a base fabric for an air bag, which solves the problems that the base fabric for the air bag has large impact force, is easy to damage human bodies, has insufficient structural strength, generates explosion and rapid expansion when high-temperature and high-pressure gas is injected into the safety air bag, cannot rapidly leak and contract and is easy to cause suffocation.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a base cloth for gasbag, includes base cloth body, base cloth layer and middle anti-tear layer, the inside centre of base cloth body sets up by middle anti-tear layer to the upper and lower both sides on middle anti-tear layer are provided with second elastic layer and first elastic layer respectively, and the top on first elastic layer is provided with synthetic fiber precoat, and the bottom of second elastic layer is provided with the base cloth layer, the inside of base cloth body evenly is provided with miniature gas pocket, sets up perpendicularly between miniature gas pocket and each material layer, and the upper and lower both ends of miniature gas pocket run through the base cloth body.

Preferably, the base fabric layer is provided with a first single-face fabric layer, a first middle layer yarn, a second middle layer sand yarn and a second single-face fabric layer, and the bottom surface of the first single-face fabric layer is in contact with the top surface of the second single-face fabric layer.

Preferably, the first single-face cloth layer and the second single-face cloth layer are combined into a whole by sewing the first middle-layer yarns and the second middle-layer sand yarns in a staggered mode, and the first middle-layer yarns and the second middle-layer sand yarns are non-elastic yarns.

Preferably, second elastic layer and first elastic layer are provided with first elasticity cloth, TPU membrane and second elasticity cloth respectively to first elasticity cloth, TPU membrane and second elasticity cloth range upon range of the setting in proper order and through hot melt processing laminating structure as an organic whole, and evenly be provided with on the TPU membrane and be equipped with the bleeder vent.

Preferably, the middle anti-tear layer is formed by weaving nylon yarns, and the nylon yarns are woven in a hexagonal grid to form a honeycomb grid structure.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the base cloth for the air bag, the first elastic layer and the second elastic layer which are sequentially stacked and combined into an integral structure through hot melting processing are arranged, so that the elastic force of the base cloth can be greatly enhanced, the deformation space generated by the base cloth is enhanced, the impact force generated by the air bag can be reduced, and the injury to a human body is reduced;

(2) according to the base cloth for the air bag, the middle anti-tearing layer formed by a honeycomb grid structure formed by weaving nylon yarns is arranged, and the base cloth layer formed by the first single-face cloth layer and the second single-face cloth layer and the first middle-layer yarns and the second middle-layer sand yarns which are sewn in a staggered mode and combined into an integral structure is arranged, so that the structural strength and the tear strength of the base cloth can be greatly enhanced, the explosion of the air bag is effectively avoided, and the use safety of the air bag is improved;

(3) this base cloth for gasbag through setting up the miniature gas pocket that runs through the base cloth body, when the gasbag opened, first elastic layer and second elastic layer shrink fast under the effect of restoring force to discharge gasbag internal gas fast through miniature gas pocket, make the timely effectual shrink of gasbag, with human facial separation, avoid stifling.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic view of a base fabric layer according to the present invention;

FIG. 3 is a schematic view of the structure of the elastic layer of the present invention;

FIG. 4 is a schematic view of the structure of the intermediate anti-tear layer of the present invention.

In the figure: 1. a base fabric body; 2. a base cloth layer; 201. a first single-face cloth layer; 202. a first middle layer yarn; 203. a second middle layer of sand yarn; 204. a second single-face cloth layer; 3. a first elastic layer; 4. a second elastic layer; 401. a first elastic cloth; 402. a TPU film; 4021. air holes are formed; 403. a second elastic cloth; 5. a synthetic fiber fabric layer; 6. an intermediate tear resistant layer; 601. a cellular lattice structure; 602. nylon yarns; 7. and (4) micro air holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention is shown: a base cloth for an air bag comprises a base cloth body 1, a base cloth layer 2 and a middle anti-tearing layer 6, wherein the middle of the inner part of the base cloth body 1 is provided with the middle anti-tearing layer 6;

the middle anti-tear layer 6 is formed by weaving nylon yarns 602, and the nylon yarns 602 are woven in a hexagonal grid to form a honeycomb grid structure 601, so that the structural strength and the tear strength of the base cloth are enhanced, the explosion of the air bag is effectively avoided, and the use safety of the air bag is improved;

the upper side and the lower side of the middle anti-tear layer 6 are respectively provided with a second elastic layer 4 and a first elastic layer 3;

the second elastic layer 4 and the first elastic layer 3 are respectively provided with a first elastic cloth 401, a TPU film 402 and a second elastic cloth 403, the first elastic cloth 401, the TPU film 402 and the second elastic cloth 403 are sequentially stacked and are bonded into an integral structure through hot melting, and the TPU film 402 is uniformly provided with air holes 4021, so that the elastic force of the base cloth can be greatly enhanced, the deformation space generated by the base cloth can be enhanced, the impact force generated by an air bag can be reduced, and the injury to a human body can be reduced;

a synthetic fiber fabric layer 5 is arranged at the top of the first elastic layer 3, and a base fabric layer 2 is arranged at the bottom of the second elastic layer 4;

the base cloth layer 2 is provided with a first single-face cloth layer 201, a first middle layer yarn 202, a second middle layer sand yarn 203 and a second single-face cloth layer 204, the bottom surface of the first single-face cloth layer 201 is contacted with the top surface of the second single-face cloth layer 204, the first single-face cloth layer 201 and the second single-face cloth layer 204 are sewn in a staggered mode through the first middle layer yarn 202 and the second middle layer sand yarn 203 to be combined into a whole, the first middle layer yarn 202 and the second middle layer sand yarn 203 are non-elastic yarns, the structural strength and the tear strength of the base cloth are enhanced, explosion of an air bag is effectively avoided, and the use safety of the air bag is improved;

the inside of base cloth body 1 evenly is provided with miniature gas pocket 7, sets up perpendicularly between miniature gas pocket 7 and each material layer to base cloth body 1 is run through at the upper and lower both ends of miniature gas pocket 7, and miniature gas pocket 7 is with the inside gas of gasbag quick discharge, makes the timely effectual shrink of gasbag, with human facial separation, avoids stifling.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.