Scribing tool for air bag heat insulation bag

The airbag heat insulation bag is marked with specific parts through the scribing tooling of the airbag heat insulation bag, which solves the problem of inaccurate insertion of the gas generator, ensures the accurate installation of the airbag heat insulation bag and the gas generator, reduces the risk of explosion failure of the airbag bag, and ensures the stable operation of the airbag.

CN223277977UActive Publication Date: 2025-08-29ZF AUTOMOTIVE SAFETY SYST (WUHAN) CO LTD
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Patent Information

Application Number
CN202422614891.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-28
Publication Date
2025-08-29
Estimated Expiration
2034-10-28

AI Technical Summary

Technical Problem

In production practice, gas generators are often unable to accurately insert into the airbag heat-insulating bag, resulting in the airbag explosion failure, and the prior art cannot effectively prevent the airbag bag from rupturing.

Method used

It provides a marking tool for airbag heat-insulating bags. Through the combination of guide rails, clamping parts and marking pens, marking specific parts of airbag heat-insulating bags are marking as an insertion mark of the gas generator to ensure accurate installation.

Benefits of technology

The accurate installation of the gas generator and the airbag heat insulation bag is achieved, reducing the risk of airbag explosion failure, and ensuring the stable operation of the airbag.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of air bag installation, and provides a scribing tool for an air bag heat insulation bag. The clamping piece is installed on the sliding block of the guide rail, and the clamping piece comprises a clamping jaw capable of clamping and loosening; the scribing pen is clamped by the clamping jaw; the positioning piece is arranged corresponding to the clamping piece, and the positioning piece is provided with a heat insulation bag profiling groove; the scribing pen moves along the heat insulation bag profiling groove along with the movement of the clamping piece along the guide rail. The positioning piece is provided with a heat insulation bag profiling groove for fixedly mounting the air bag heat insulation bag so as to mark the air bag heat insulation bag; during installation, the port of the air bag heat insulation bag can be inserted into the heat insulation bag profiling groove, and the part needing to be marked is exposed. The clamping piece is installed on a sliding block of the guide rail and can drive the lineation pen to move so that lineation and marking can be carried out conveniently. And the clamping jaw can clamp and loosen, so that a proper marking pen can be flexibly replaced according to requirements. When the clamping piece moves along the guide rail, the marking pen moves along the heat insulation bag profiling groove, and marking of specific portions of the air bag heat insulation bag is achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of installing air bags, in particular to a marking tool for an air bag insulation bag. Background Art

[0002] When the airbag is detonated, the gas generator produces high-temperature and high-pressure gas. If it directly impacts the airbag bag, it may easily cause the airbag bag to rupture, resulting in failure of the airbag detonation.

[0003] To prevent airbag deployment failure, an airbag insulation bag is placed between the airbag bag and the inflator. The bag is connected to the bag's air inlet, and the inflator is inserted into the bag. This allows high-temperature, high-pressure gas to flow through the insulation bag and into the bag upon ignition, preventing the bag from rupturing and ensuring successful airbag deployment.

[0004] In a typical design, in order to ensure sufficient thermal insulation, the airbag insulation bag is provided with four layers of cloth, and the gas generator needs to be inserted between the middle two layers of cloth to ensure stable operation of the airbag.

[0005] However, in production practice, the problem of the gas generator not being accurately inserted into the airbag insulation bag often occurs, resulting in the airbag detonation failure being unable to be avoided even though the airbag insulation bag is set.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Utility Model Content

[0007] In view of this, the utility model provides a marking tool for an airbag insulation bag, which can mark specific parts of the airbag insulation bag with lines, which serves as an insertion mark for the gas generator, and helps to accurately install the gas generator and the airbag insulation bag in production practice; and the marking tool of the utility model is easy to operate, the marking is obvious, and the operation process will not cause damage to the airbag insulation bag.

[0008] One aspect of the utility model provides a marking tool for an airbag insulation bag, comprising: a guide rail; a clamping member installed on a slider of the guide rail, the clamping member comprising a clamping claw that can be clamped and released; a marking pen clamped by the clamping claw; a positioning member arranged corresponding to the clamping member, the positioning member being provided with an insulation bag profiling groove; as the clamping member moves along the guide rail, the marking pen moves along the insulation bag profiling groove.

[0009] In some embodiments, the guide rail includes two parallel rails, and the clamping member is mounted on the slider of the guide rail via a connecting plate mounted on the two guide rails.

[0010] In some embodiments, a handle is provided on the connecting plate.

[0011] In some embodiments, the guide rail is a linear guide rail.

[0012] In some embodiments, the clamping members include two, each of which includes a support member installed on a connecting plate and the clamping claw connected to the support member; the connecting plate is installed on the slider of the guide rail.

[0013] In some embodiments, the support member includes a support block fixed on the connecting plate and a fixing block connected to the support block, and the clamping jaw is connected to the fixing block.

[0014] In some embodiments, the clamping jaw has a through hole for the marking pen to pass through, and the end of the clamping jaw is locked by a fastener.

[0015] In some embodiments, the positioning member includes a positioning block and a clamping member provided on the positioning block.

[0016] In some embodiments, the clamping member includes a clamping plate and a clamping block, and the insulation bag contour groove is formed between the clamping plate and the clamping block.

[0017] Compared with the prior art, the beneficial effects of the present invention include at least:

[0018] The positioning element features a contoured slot for securing the airbag insulation bag, allowing for marking. During installation, the bag's port is inserted into the contoured slot, exposing the area to be marked. The clamp, mounted on the guide rail's slider, drives the marking pen for marking. The clamping jaws can be tightened and loosened, allowing for flexible replacement of the appropriate marking pen as needed. As the clamp moves along the guide rail, the marking pen follows the contoured slot, marking specific areas of the airbag insulation bag.

[0019] Therefore, the marking tool of the present invention can mark specific parts of the airbag insulation bag with lines, which serves as an insertion mark for the gas generator, and helps to achieve accurate installation of the gas generator and the airbag insulation bag in production practice; and the marking tool of the present invention is easy to operate, has obvious markings, and will not cause damage to the airbag insulation bag during the operation process.

[0020] After testing, it was found that in production practice, the marking tool of the utility model is used to mark the airbag insulation bag. The marking is obvious and can be effectively identified, thereby avoiding the gas generator from being inserted into the wrong insulation bag cloth piece, ensuring accurate installation between the gas generator and the airbag insulation bag, reducing the risk of airbag bag detonation failure, and ensuring stable operation of the airbag.

[0021] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present invention, and together with the specification, are used to explain the principles of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0023] Figure 1 A schematic structural diagram of a marking tool for an airbag insulation bag in an embodiment of the present utility model is shown. DETAILED DESCRIPTION

[0024] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to make this disclosure more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art.

[0025] The accompanying drawings are only schematic diagrams of the present invention and are not necessarily drawn to scale. The same reference numerals in the drawings represent the same or similar structures, and their repeated description will be omitted.

[0026] In the description of the present invention, when it is said that a certain device is “connected” to another device, this includes not only a direct connection but also an indirect connection via other elements.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in different embodiments may be combined with each other.

[0028] Figure 1 The structure of the marking tool of the airbag insulation bag in the embodiment of the utility model is shown in FIG. Figure 1 As shown, the marking tool for the airbag insulation bag provided by the embodiment of the present invention includes:

[0029] Guide rail 10;

[0030] A clamping member 20 is mounted on the slider 11 of the guide rail 10, and the clamping member 20 includes a clamping claw 22 that can be clamped and released;

[0031] a marking pen 30 , held by the clamping jaws 22 ;

[0032] The positioning member 40 is provided corresponding to the clamping member 20, and the positioning member 40 is provided with a heat insulation bag profiling groove 44;

[0033] As the clamping member 20 moves along the guide rail 10 , the marking pen 30 moves along the insulation bag contour groove 44 .

[0034] The positioning member 40 is provided with an insulation bag contour groove 44 for securing the airbag insulation bag and facilitating marking of the bag. During installation, the end of the airbag insulation bag can be inserted into the contour groove 44, exposing the area to be marked. The clamping member 20 is mounted on the slider 11 of the guide rail 10 and can move the marking pen 30 for marking. The clamping jaws 22 can be tightened and loosened, allowing for flexible replacement of the appropriate marking pen 30 as needed. As the clamping member 20 moves along the guide rail 10, the marking pen 30 moves along the contour groove 44, marking a specific area of ​​the airbag insulation bag.

[0035] The marking tool of the present invention can mark specific parts of the airbag insulation bag with lines, which serves as an insertion mark for the gas generator, helping to achieve accurate installation of the gas generator and the airbag insulation bag in production practice; and the marking tool of the present invention is easy to operate, has obvious markings, and will not cause damage to the airbag insulation bag during the operation process.

[0036] After testing, it was found that in production practice, the marking tool of the utility model is used to mark the airbag insulation bag. The marking is obvious and can be effectively identified, thereby avoiding the gas generator from being inserted into the wrong insulation bag cloth piece, ensuring accurate installation between the gas generator and the airbag insulation bag, reducing the risk of airbag bag detonation failure, and ensuring stable operation of the airbag.

[0037] In some embodiments, the guide rail 10 includes two parallel rails, and the clamping member 20 is mounted on the slider 11 of the guide rail 10 via a connecting plate 21 mounted on the two guide rails 10 .

[0038] The two parallel guide rails 10 provide a stable travel guide for the clamp 20. The clamp 20 is connected to the guide rails 10 via a connecting plate 21 mounted on the two guide rails 10, further ensuring the stability of the clamp 20. This allows the clamp 20 to move the marking pen 30 stably during marking, ensuring accurate marking.

[0039] In some embodiments, the guide rail 10 is a linear guide rail. The linear guide rail is used to limit the linear movement of the clamping member 20 and the marking pen 30 to form a linear marking mark. In some cases, depending on different marking requirements, the guide rail 10 can also be a non-linear guide rail, such as an arc-shaped guide rail, a wavy guide rail, etc.

[0040] In some embodiments, the connecting plate 21 is provided with a handle 23. The handle 23 allows the connecting plate 21 to be moved along the guide rail 10, thereby driving the clamping member 20 and the marking pen 30 to move and mark the line. In some cases, the connecting plate 21 can also be driven by a driving component such as a cylinder.

[0041] In some embodiments, two clamping members 20 are provided. Each clamping member 20 includes a support member 24 mounted on a connecting plate 21 and a clamping jaw 22 connected to the support member 24. The two clamping members 20 hold two marking pens 30, allowing marking of specific areas on both sides of the airbag insulation bag to ensure accurate insertion of the inflator. The support member 24 ensures a secure connection between the clamping jaw 22 and the connecting plate 21.

[0042] In some embodiments, the support member 24 includes a support block 241 fixed to the connecting plate 21 and a fixing block 242 connected to the support block 241. The clamping jaw 22 is connected to the fixing block 242. The clamping jaw 22 and the fixing block 242, or the fixing block 242 and the support block 241, can be detachably connected, so that different types of clamping jaws 22 can be replaced according to different marking requirements.

[0043] In some embodiments, the jaws 22 have a through-hole for a marking pen 30 to pass through, and the ends of the jaws 22 are locked by fasteners 220. When the fasteners 220 are loosened, the jaws 22 release the marking pen 30, allowing the position of the marking pen 30 to be adjusted to ensure that the marking is accurately placed on a specific part of the airbag insulation bag. When the fasteners 220 are locked, the jaws 22 clamp the marking pen 30, allowing the marking pen 30 to mark the airbag insulation bag.

[0044] In some embodiments, the positioning member 40 includes a positioning block 41 and a clamping member disposed on the positioning block 41. The positioning block 41 can be used for positioning the airbag insulation bag during installation, and the clamping member is used for clamping the airbag insulation bag.

[0045] In some embodiments, the clamping member includes a clamping plate 42 and a clamping block 43. A thermal insulation bag-shaped groove 44 is formed between the clamping plate 42 and the clamping block 43. The clamping plate 42 may be, for example, a clamping sheet metal. The dimensions of the thermal insulation bag-shaped groove 44 are adapted to the port size of the airbag thermal insulation bag, allowing it to clamp the port of the airbag thermal insulation bag and facilitate marking the airbag thermal insulation bag.

[0046] The aforementioned guide rail 10, positioning member 40, and other components can all be mounted on the base 60. Furthermore, the base 60 is provided with a limiter 66, which is connected to the connecting plate 21 via screws, pins, and other components. When assembling or adjusting the marking pen 30, the limiter 66 is connected to the connecting plate 21 to stabilize the position of the clamp 20. Once the marking pen 30 is positioned and marking is to be performed, the screws, pins, and other components are loosened to release the connecting plate 21, allowing the clamp 20 to move the marking pen 30 and perform the marking.

[0047] The marking tool of the present invention involves folding the airbag insulation bag appropriately to expose the specific portion to be marked. The bag's port is then inserted into the bag's contoured groove 44, clamping the port between the clamping plate 42 and the clamping block 43. The specific portion to be marked is exposed above the bag's contoured groove 44. A marking pen 30 is installed in the clamping jaws 22, and the angle and position of the marking pen 30 are confirmed to be accurate. Pulling the handle 23 moves the clamping member 20 along the guide rail 10, which in turn moves the marking pen 30 along the bag's contoured groove 44, marking the specific portion of the airbag insulation bag.

[0048] The marking tool of the present invention can be used to mark specific parts of the airbag insulation bag, which serves as an insertion mark for the gas generator, helping to achieve accurate installation of the gas generator and the airbag insulation bag in production practice; and the marking tool of the present invention is easy to operate, has obvious markings, and will not cause damage to the airbag insulation bag during the operation process.

[0049] After testing, it was found that in production practice, the marking tool of the utility model is used to mark the airbag insulation bag. The marking is obvious and can be effectively identified, thereby avoiding the gas generator from being inserted into the wrong insulation bag cloth piece, ensuring accurate installation between the gas generator and the airbag insulation bag, reducing the risk of airbag bag detonation failure, and ensuring stable operation of the airbag.

[0050] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A marking tool for an airbag insulation bag, characterized in that: include: guide; A clamping member is mounted on the slider of the guide rail, and the clamping member includes a clamping claw that can be clamped and released; a marking pen, held by the clamping jaws; A positioning piece, arranged corresponding to the clamping piece, and provided with a heat insulation bag profiling groove; As the clamping member moves along the guide rail, the marking pen moves along the thermal insulation bag profiling groove.

2. The marking tool according to claim 1, characterized in that: The guide rails include two parallel rails, and the clamping member is installed on the sliders of the guide rails via a connecting plate mounted on the two guide rails.

3. The marking tool according to claim 2, characterized in that: A handle is provided on the connecting plate.

4. The marking tool according to claim 1, characterized in that: The guide rail is a linear guide rail.

5. The marking tool according to claim 1, characterized in that: The clamping members include two, each of which includes a support member mounted on a connecting plate and a clamping claw connected to the support member; The connecting plate is mounted on the slider of the guide rail.

6. The marking tool according to claim 5, characterized in that: The support member includes a support block fixed on the connecting plate and a fixing block connected to the support block, and the clamping claw is connected to the fixing block.

7. The marking tool according to claim 1, wherein: The clamping jaw has a through hole for the marking pen to pass through, and the end of the clamping jaw is locked by a fastener.

8. The marking tool according to claim 1, wherein: The positioning member includes a positioning block and a clamping member arranged on the positioning block.

9. The marking tool according to claim 8, characterized in that: The clamping member includes a clamping plate and a clamping block, and the insulation bag contour groove is formed between the clamping plate and the clamping block.