CN212923845U - Folding tool for folding safety airbag - Google Patents

Abstract

The application discloses a folding frock for folding air bag includes: the folding tool is used for compressing the safety air bag into a preset shape; the airbag with the preset shape can use the bottom surface as a datum plane, and is extruded along the horizontal direction and the top surface of the airbag with the preset shape until the airbag can meet the installation condition.

Description

Folding tool for folding safety airbag

Technical Field

The utility model relates to a traffic safety field, concretely relates to folding frock for folding air bag.

Background

Nowadays, airbags have become an indispensable part of automobiles in order to ensure the safety of drivers of automobiles as much as possible.

A typical vehicle airbag system includes at least a sensor, an igniter, a gas generator, and an airbag; the sensor is used for sensing whether collision occurs or not, if the collision occurrence is detected, the igniter is started, the igniter ignites to detonate the primer, the primer explodes to generate heat instantly, the inflating agent in the gas generator is heated and decomposed, a large amount of gas is generated instantly to enter the airbag, and the airbag is unfolded to protect passengers.

In an airbag system, an airbag sometimes refers to the entire airbag system, sometimes to an elastic bag for enclosing a gas to achieve deployment, and for the purpose of distinguishing between the two, the latter is sometimes referred to as an airbag; the latter, i.e. the airbag, is generally referred to in this application.

Under the condition of no collision, the safety airbag is generally installed at a proper position of an automobile in an uninflated folded state so as to ensure that the safety airbag can be effectively unfolded under the condition of triggering expansion and protect key parts of passengers; for this reason, the airbag needs to be regularly folded in advance so as to be installed in a reserved position and to be efficiently deployed when necessary.

In the prior art, the most common method for folding the safety airbag is to fold the safety airbag according to a pre-designed folding process; because of the installation space limitation and the working requirement of the airbag, the folding process considers whether the installation space can accommodate the folded airbag or not, and also considers whether the airbag can be effectively unfolded when collision occurs, and therefore, the effect can be achieved only by adopting a well-designed complex folding process.

In the prior art, because the folding process is extremely complex, folding errors are easy to occur, and once the folding errors occur, the safety airbag can not be effectively unfolded in the unfolding process; in addition, the complexity of the folding process also causes that the folding process takes too long time and the working efficiency is too low.

SUMMERY OF THE UTILITY MODEL

The present application provides a folding process for folding an airbag using a folding tool, which helps to simplify the folding process of the airbag, shorten the folding time, and enable the airbag to be unfolded quickly and uniformly, and a folding tool for folding an airbag.

The application provides an utilize folding frock folding air bag's folding technology includes:

compressing the safety airbag into a preset shape by using a folding tool;

and extruding the airbag with the preset shape along four sides and the top surface of the airbag with the preset shape in the horizontal direction by taking the bottom surface of the airbag with the preset shape as a reference surface until the airbag is compressed into a shape according with the installation condition.

Preferably, the folding tool is divided into an upper layer tool and a lower layer tool which are matched with each other; at least one of the upper layer tool and the lower layer tool is provided with grains matched with the preset shape;

utilize folding frock to compress into air bag default shape, include:

paving the safety airbag on a lower layer tool of the folding tool;

and buckling the lower-layer tool with the upper-layer tool, and compressing the safety air bag into a preset shape through the extrusion of the upper-layer tool and the lower-layer tool.

Preferably, air bag is for installing solid fixed ring's air bag, through gu the location structure that sets up on the fixed ring will air bag fixes a position on the frock of lower floor, and follows lower floor's frock surface tiling air bag.

Preferably, the fixing ring is installed at an inflation port of the airbag, the bottom of the fixing ring is provided with at least 1 fixing column for positioning the airbag, and the surface of the lower-layer tool is provided with a groove or a through hole corresponding to the fixing column and used for fixing and positioning the airbag;

the safety airbag is paved on the surface of the lower-layer tool along the edges, the fixing ring fixing column is inserted into a groove or a through hole of the lower-layer tool, and the safety airbag is paved on the surface of the lower-layer tool along the fixing column serving as a center.

Preferably, the pressing of the airbag of the predetermined shape along four sides and a top surface of the airbag of the predetermined shape in a horizontal direction with a bottom surface of the airbag of the predetermined shape as a reference surface until the airbag is compressed into a shape conforming to a mounting condition includes:

placing the airbag with the preset shape on a workbench of a folding device prepared in advance, wherein the bottom surface of the airbag is in contact with the surface of the workbench;

the extrusion working head of the folding equipment extrudes the airbag in the preset shape from the side surface and the top surface of the airbag in the preset shape along a preset track until the airbag in the preset shape is compressed to a shape meeting the installation condition; the surface of the extrusion working head, which is in contact with the safety airbag, has a preset shape.

Preferably, the preset shape is a half-open shape of an automatic umbrella.

This application simultaneously applies for a folding frock for folding air bag, includes:

the folding tool is used for compressing the safety air bag into a preset shape;

the airbag with the preset shape can use the bottom surface as a datum plane, and is extruded along the horizontal direction and the top surface of the airbag with the preset shape until the airbag can meet the installation condition.

Preferably, the folding tool is divided into an upper layer tool and a lower layer tool which are matched with each other; at least one of the upper layer tool and the lower layer tool is provided with grains matched with the preset shape;

the lower-layer tool is used for placing the flat-laid safety air bags;

the upper layer tool is used for buckling with the lower layer tool to compress the safety air bag into a preset shape.

Preferably, lower floor's frock is used for placing the air bag of tiling includes: the surface of the lower layer tool is provided with a groove or a through hole for fixing and positioning the safety air bag.

Preferably, at least one in upper frock, the lower floor's frock be provided with predetermine the anastomotic line of shape, include:

the upper layer tool and the lower layer tool are provided with at least one uniform pattern which is sunken along the circumferential direction of the upper layer tool and the lower layer tool, and the pattern is in a half-open shape of the automatic umbrella.

Preferably, the groove or the through hole is formed in a central region of the upper surface of the lower layer tool.

Compared with the prior art, the method has the following advantages:

the application provides an utilize folding frock folding air bag's folding technology, at first utilize folding frock to compress into preset shape with air bag, then with the air bag's of preset shape bottom surface is the reference surface, follows the air bag's of preset shape horizontal direction's four sides and top surface are right the air bag of preset shape extrudees, until air bag compresses into the shape that accords with the installation condition. Compared with the prior art, this application technical scheme utilizes folding frock to compress air bag, makes it form and predetermines the shape, can ensure that air bag follows specific law at the in-process that aerifys the expansion for air bag can evenly expand according to predetermineeing the shape fast at the in-process that aerifys the expansion, has effectively avoided unordered folding problem of unfolding the irregularity that causes under the prior art.

In addition, the airbag with the preset shape, which is folded by the folding tool, only needs to be simply compressed on the basis of the airbag with the preset shape, so that the installation condition can be met, and the process of obtaining the preset shape can be rapidly completed under the help of the pre-designed folding tool.

Drawings

FIG. 1 is a flow chart of a folding process for folding an airbag using a folding tool according to a first embodiment of the present disclosure;

fig. 2 is a flow chart of a folding process for compressing an airbag into a predetermined shape by using a folding tool according to a first embodiment of the present disclosure;

FIG. 3 is a flow chart of a folding process for compressing the airbag in a predetermined shape into a shape conforming to an installation condition according to a first embodiment of the present application;

FIG. 4 is a schematic front view of a folding tool according to a second embodiment of the present application;

fig. 5 is a schematic top view of a lower tool according to a second embodiment of the present application.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and is therefore not limited to the specific embodiments disclosed below.

A folding process for folding an airbag using a folding tool and a folding tool for folding an airbag are provided in the present application, respectively, and are described in detail one by one in the following embodiments.

The first embodiment of the present application provides a folding process for folding an airbag by using a folding tool, including: compressing the safety airbag into a preset shape by using a folding tool; and extruding the airbag with the preset shape along four sides and the top surface of the airbag with the preset shape in the horizontal direction by taking the bottom surface as a reference surface until the airbag is compressed into a shape according with the installation condition.

Through the aforesaid to this application utilize folding frock folding air bag's folding technology to know, the folding scheme of this application mainly divide into two steps, and is right through folding frock air bag compresses, makes it possess and predetermines the shape, secondly extrude on the air bag's of predetermineeing the shape basis, makes air bag possess the installation condition. Therefore, it is necessary to implement the first embodiment of the present application by using the folding tool to squeeze the airbag, and therefore how to construct a folding tool is particularly important. In addition, in order to make the reader understand the present solution more easily, first, a simple description is given to a folding tool for folding an airbag according to the second embodiment of the present application.

Please refer to fig. 4, which is a schematic front view of a folding tool in a second embodiment of the present application.

Folding frock is used for compressing into air bag and predetermines the shape, folding frock divide into upper frock 101 and lower floor's frock 102 of mutually supporting, in addition, in order to make the process air bag after folding frock extrusion can form and predetermine the shape, at least one in upper frock 101, the lower floor's frock 102 be provided with predetermine the anastomotic line of shape.

As can be seen from the above description of the folding tool, the folding tool already has conditions for compressing the airbag and compressing the airbag into a preset shape, and therefore, the folding method for the airbag according to the first embodiment of the present application can be implemented based on the folding tool.

Please refer to fig. 1, which is a flowchart illustrating a folding process for folding an airbag by using a folding tool according to a first embodiment of the present application.

And S101, compressing the safety air bag into a preset shape by using a folding tool.

The key point of this embodiment is that due to the existence of the preset shape of the airbag, the subsequent folding process is performed on the basis of the preset shape. Under the process, after the safety airbag is installed stably, when the impact degree of a vehicle meets the condition of opening the safety airbag, the safety airbag can be firstly unfolded into the preset shape in the process of starting inflation, and then the safety airbag can be unfolded along the preset shape. The preset shape is a shape capable of ensuring that the airbag is uniformly and fully unfolded, so that the preset shape in the step is a key for ensuring that the airbag can be rapidly and uniformly unfolded in the inflating process.

As shown in fig. 2, which is a flow chart of a folding process for compressing an airbag into a preset shape by using a folding tool according to the present application, the compression method includes the following steps S101-1 to S101-2, which are described in detail below.

And S101-1, paving the airbag on a lower layer tool 102 of the folding tool.

In order to smoothly compress the airbag into a predetermined shape, the airbag must be fixed to the compression tool before compression. This is done, on one hand, to avoid the position deviation during the compression of the airbag, and on the other hand, to improve the production efficiency, and to more accurately position the airbag on the lower tool 102 when it is laid flat.

In order to achieve the technical effect, the first embodiment of the application provides the fixing ring for positioning for the airbag, and also designs a structure for positioning for the folding tool.

The folding tool and the airbag will be described in detail below with reference to the process of laying the airbag on the lower tool 102 of the folding tool.

The air bag is an air bag provided with a fixing ring, and the air bag is positioned on the lower-layer tool 102 and is tiled on the surface of the lower-layer tool 102 through a positioning structure arranged on the fixing ring.

The fixing ring is installed at an inflating opening of the safety air bag, and the bottom of the fixing ring is at least provided with 1 fixing column for positioning the safety air bag.

In addition, in order to facilitate the fixing of the airbag, the size of the fixing ring should be designed according to the size of the inflation port of the airbag, so as to ensure that the fixing ring is matched with the airbag.

It should be noted that the fixing ring can be installed not only at the inflation port of the airbag, but also at the time of an accident or for some reason triggering the airbag installed in the vehicle, and the airbag will be deflated after being instantaneously inflated, so that a corresponding air outlet can be designed during the design process of the airbag. Therefore, the fixing ring can be arranged at the air outlet, and at the moment, the size of the fixing ring is designed according to the size of the air outlet, so that the fixing ring and the air outlet are matched.

No matter where the fixing ring is installed on the airbag, the surface of the lower tool 102 should be provided with a groove or a through hole corresponding to the fixing column for fixing and positioning the airbag;

the airbag is tiled along the surface of the lower-layer tool 102 by inserting the fixing ring fixing column into a groove or a through hole of the lower-layer tool 102, and by taking the fixing column as a center, the airbag is tiled along the surface of the lower-layer tool 102.

And S101-2, buckling the lower-layer tool 102 with the upper-layer tool 101, and compressing the airbag into a preset shape through extrusion of the upper-layer tool 101 and the lower-layer tool 102.

After the airbag is compressed, the airbag already has a certain preset shape, and the airbag with the preset shape is taken out of the folding tool, but at this time, the airbag still does not meet the installation condition, and the shape of the airbag needs to be limited on the basis of the preset shape. In addition, in the process of limiting the shape, the preset shape is kept as much as possible, so that the preset shape is not damaged.

And S102, extruding the airbag with the preset shape along four sides and the top surface of the airbag with the preset shape in the horizontal direction by taking the bottom surface as a reference surface until the airbag is compressed into a shape conforming to the installation condition.

The airbag is mainly unfolded when a driver drives a vehicle to collide, and at the moment, the airbag is rapidly inflated to protect the heads, the chests or other key body parts of the driver and the members from being injured. However, the airbag has a predetermined shape, and the airbag is rapidly and uniformly deployed when inflated, but has no mounting condition in terms of size, and thus, it is necessary to compress the airbag to conform to the mounting condition. This step is used to achieve further compression of the airbag to conform to the installation conditions.

As shown in fig. 3, which is a flow chart of a folding process for compressing the airbag in the preset shape into a shape conforming to the installation condition according to the present application, the process includes the following steps S102-1 to S102-2, which will be described in detail below.

And S102-1, placing the airbag with the preset shape on a workbench of a folding device prepared in advance, wherein the bottom surface of the airbag is in contact with the surface of the workbench.

The folding equipment is special equipment which is specially used for rapidly realizing the further extrusion of the airbag with the preset shape; the folding equipment is provided with a workbench and an extrusion working head; the table top is a reference surface of the airbag with a preset shape.

Step S102-2, squeezing the airbag in the preset shape from the side surface and the top surface of the airbag in the preset shape along a preset track by a squeezing working head of the folding device until the airbag in the preset shape is compressed to a shape meeting installation conditions; the surface of the extrusion working head, which is in contact with the safety airbag, has a preset shape.

The working head is a component which directly applies extrusion force to the safety air bag, and the final movement position of the working head and the table top of the working table together limit the shape of the safety air bag; the driving of the working head can adopt pneumatic or hydraulic driving, and the surface of the working head, which is contacted with the safety air bag, is adapted according to the required surface shape after the safety air bag is extruded and formed; the working head can comprise a plurality of independent squeezing blocks such as an upper squeezing block, a front squeezing block and a rear squeezing block, or more squeezing blocks can be arranged according to the requirement.

When the airbag with the preset shape is extruded, the shape of the airbag is necessarily changed, and in order to ensure that the extruded airbag can still be rapidly and uniformly deployed, the extrusion process should ensure that the side surface and the top surface of the airbag with the preset shape are simultaneously performed, and the pressing widths of the side surfaces at all angles should be the same. In addition, since the shape of the airbag according to the mounting condition is formed by pressing the respective pressing blocks, the final shape of the airbag may be circular or polygonal. The above requirements can be achieved by electrical and mechanical control of the working process of the working head, and are not described herein.

In addition, in order to make the folding process of the safety air bag more regular and to make the quick and uniform unfolding process of the safety air bag when the safety air bag is inflated and unfolded, the preset shape is a semi-open shape of an automatic umbrella.

It should be noted that the preset shape given above is only a preferred embodiment proposed in the present application, and in other embodiments, different shapes may be adopted, for example, the preset shape may be a hemisphere or a cone, etc., and the preset shape may be designed by the relevant staff according to the needs.

In summary, the first embodiment of the present application provides a concept of compressing an airbag by using a folding tool to form a predetermined shape, so as to ensure that the airbag follows a specific rule in the unfolding process, and in addition, the airbag compressed by the folding tool only needs to be simply compressed on the basis of the airbag in the predetermined shape in order to meet the installation condition, thereby greatly saving the workload of related workers, abandoning the folding process of the airbag in the conventional sense, and the related workers do not need to consider a complicated folding process due to the generation of the folding tool for folding the airbag.

In the above embodiment, a folding process for folding an airbag by using a folding tool is provided, and correspondingly, a second embodiment of the present application further provides a folding tool for folding an airbag. The folding tool provided in the second embodiment of the present application is applied to the folding process for folding the airbag by using the folding tool provided in the first embodiment of the present application, and the folding process that needs to be mentioned when describing the folding tool is described in detail in the first embodiment, which is only briefly described in this embodiment.

A folding tool for folding an airbag according to a second embodiment of the present application is used for compressing an airbag into a preset shape; the airbag with the preset shape can use the bottom surface as a datum plane, and is extruded along the horizontal direction and the top surface of the airbag with the preset shape until the airbag can meet the installation condition.

As shown in fig. 4, which is a front view of a folding tool according to a second embodiment of the present application, the folding tool is divided into an upper tool 101 and a lower tool 102 that are matched with each other; at least one of the upper layer tool 101 and the lower layer tool 102 is provided with grains matched with the preset shape.

The lower-layer tool is used for placing the flat-laid safety air bags; the upper-layer tool 101 is used for buckling with the lower-layer tool 102 to compress the airbag into a preset shape.

As shown in fig. 5, which is a top view of the lower fixture 102 according to the second embodiment of the present application, in order to fix the airbag on the lower fixture 102, a groove or through hole 1021 for fixing and positioning the airbag is formed on the surface of the lower fixture.

In addition, in order to realize quick and uniform opening of the safety air bag, at least one of the upper layer tool and the lower layer tool is provided with a uniform pattern which is sunken along the circumferential direction of the upper layer tool and the lower layer tool, and the shape of the pattern is similar to the shape of a half-opened automatic umbrella.

The groove or through hole 1021 is provided in a central region of the upper surface of the lower layer tool.

It should be noted that the above-mentioned pattern shape and the position of the groove or through hole are only a preferred embodiment proposed in the present application, and in other embodiments, different patterns and position structures may be adopted, for example, the pattern may also be a plurality of isosceles triangles, the isosceles triangles are uniformly distributed on the side surface of the lower layer tool, and the groove or through hole 1021 may be disposed at a position deviated from the center. These simple variations, which are part of the folding tooling described in this application, are within the scope of protection of this application without departing from the core of this application.

In summary, the second embodiment of the present application provides a folding tool for compressing an airbag to form a predetermined shape. Above-mentioned folding frock provides one kind for the first time and can compress and make it possess and predetermine the shape with air bag, just predetermine the shape and can possess the installation condition through the extrusion, make air bag's the shaping of changing in folding process, the size after air bag is folding also can obtain effectual control.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make modifications and changes without departing from the spirit and scope of the present invention.

Claims (4)

1. The utility model provides a folding frock for folding air bag which characterized in that includes:

the folding tool is used for compressing the safety air bag into a preset shape and is divided into an upper layer tool and a lower layer tool which are matched with each other; at least one of the upper layer tool and the lower layer tool is provided with grains matched with the preset shape; the lower-layer tool is used for placing the flat-laid safety air bags; the upper layer tool is used for compressing the safety airbag into a preset shape by buckling with the lower layer tool;

the airbag with the preset shape can use the bottom surface as a datum plane, and is extruded along the horizontal direction and the top surface of the airbag with the preset shape until the airbag can meet the installation condition.

2. A folding tooling for folding an airbag according to claim 1 wherein said lower tooling is for placing said tiled airbag comprising: the surface of the lower layer tool is provided with a groove or a through hole for fixing and positioning the safety air bag.

3. The folding tooling for folding an airbag according to claim 1, wherein at least one of the upper layer tooling and the lower layer tooling is provided with a line which is matched with the preset shape, and the folding tooling comprises:

the upper layer tool and the lower layer tool are provided with at least one uniform pattern which is sunken along the circumferential direction of the upper layer tool and the lower layer tool, and the pattern is in a half-open shape of the automatic umbrella.

4. A folding tooling for folding an airbag according to claim 2 wherein the recess or aperture is provided in a central region of the upper surface of the lower tooling.

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