Composite distal balloon airbag pull strap

CN224323958UActive Publication Date: 2026-06-05WUHU JINAN SHITENG AUTOMOBILE SAFETY SYST

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: WUHU JINAN SHITENG AUTOMOBILE SAFETY SYST
Filing Date: 2025-05-16
Publication Date: 2026-06-05

AI Technical Summary

Technical Problem

In existing technologies, traditional traction strap designs in vehicle collisions, traditional single traction strap structures in offset collisions, traditional single traction strap designs in airbag systems, traditional single traction strap or parallel double traction strap designs in offset collisions, traditional single traction strap or parallel double traction strap structures in expansion symmetry, traditional single traction strap or parallel double traction strap designs in expansion symmetry, and traditional single traction strap structures in offset collisions are prone to causing airbag displacement. While X-shaped traction straps improve deployment symmetry, they cannot effectively suppress radial expansion, making it difficult to balance rapid deployment and attitude stability.

Method used

The airbag strap with a composite structure includes a lateral limiting strap mechanism and a longitudinal limiting strap mechanism. The lateral limiting strap mechanism includes an X-shaped strap, which is located on one side of the main airbag piece. The longitudinal limiting strap mechanism includes a C-shaped strap, which is symmetrically distributed on both radial sides of the airbag. The X-shaped and C-shaped straps are connected by lockstitch stitching to form a composite strap mechanism that restricts the lateral and longitudinal expansion of the airbag.

Benefits of technology

Through the design of the composite strap mechanism, the C-shaped strap guides the airbag to unfold in the preset direction, limiting the unfolding range of the upper and lower edges of the airbag, while the X-shaped strap limits the excessive lateral and longitudinal expansion of the middle of the airbag, evenly distributing the gas pressure, avoiding local bulging or twisting, and ensuring that the airbag remains stable in oblique collisions or rollover accidents, covering the critical parts of the occupants.

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Figure CN224323958U_ABST

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Abstract

The utility model relates to the technical field of safety air bag, concretely relates to a far end air bag air bag pull belt of composite structure, including air bag, the air bag is composed of two air bag main pieces, is provided with the composite pull belt mechanism between two air bag main pieces, the composite pull belt mechanism includes horizontal limiting pull belt mechanism and longitudinal limiting pull belt mechanism, horizontal limiting pull belt mechanism is used for limiting air bag horizontal expansion, longitudinal limiting pull belt mechanism is used for limiting air bag longitudinal expansion, and the composite pull belt mechanism is formed through C type pull belt and X type pull belt, and C type pull belt limits air bag longitudinal excessive expansion, and X type pull belt controls horizontal volume, makes air bag realize optimal protection coverage in limited space, improves air bag use effect.

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