Welding method and welding device for airbag chute

JP2025132816APending Publication Date: 2025-09-10DAIKYONISHIKAWA CORP
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Patent Information

Application Number
JP2024030629
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-02-29
Publication Date
2025-09-10

AI Technical Summary

Technical Problem

Existing welding devices for airbag chutes require multiple laser diodes for larger welding areas, leading to complex structures and increased costs, and their versatility is limited by the need to change laser diode arrangements for different welding configurations.

Method used

The use of a galvano scanning laser head to irradiate laser light, with the airbag chute flaps and flanges made of resin that transmits light, and a pressing tool with a reflector to expose welding areas, allowing the laser head to move and reflect light as needed, simplifying the device structure and reducing costs.

Benefits of technology

This approach allows for wider welding areas without additional laser diodes, enhances versatility by adjusting welding locations easily, and improves welding strength by direct and reflected laser irradiation, while reducing costs and simplifying the device configuration.

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Abstract

To reduce the cost of a welding device and improve its versatility.SOLUTION: In a state where surfaces of respective flaps and flanges of an airbag chute 11 are brought into contact with a rear surface of an instrument panel 1, the airbag chute 11 is pressed toward the instrument panel 1 side by a pressing tool 111 having a first opening 111g and a second opening 111h. In this state, first and second laser beams LBA, LB2 are irradiated from first and second galvanoscanning type laser heads 115, 117 through the first opening 111g and the second opening 111h onto regions of the respective flaps and the flange exposed from the first opening 111g and the second opening 111h.SELECTED DRAWING: Figure 5
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Citation Information

Patent Citations

  • Airbag cover provided with launch passage and method and device for manufacturing the airbag cover

    JP2010064741A