Detachable fastening clamp

By designing a detachable multi-stage fastening clamp, which automatically aligns with the chassis slot using the deflection point and ramp structure, the adaptability problem of existing fasteners when connecting panels to vehicle chassis is solved. This achieves high holding force and low insertion force, adapts to the connection of metal plates with different thicknesses and curvatures, reduces costs and noise, and improves safety and quality.

CN121363577APending Publication Date: 2026-01-20TERMAX CORP
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Patent Information

Application Number
CN202510978117.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2025-06-30
Filing Date
2025-07-16
Publication Date
2026-01-20

AI Technical Summary

Technical Problem

Existing fasteners are difficult to adapt to different size and position production tolerances when connecting panels to vehicle chassis, resulting in uneven insertion and extraction forces, which can easily damage the wings and generate noise and vibration under environmental changes, making them unusable.

Method used

A detachable, multi-stage fastening clamp, comprising pins, grommets, and retainers, is designed to automatically align with chassis slots via flex points and ramp structures, providing high holding force and low insertion force, adapting to variations in metal plate thickness and curvature, and utilizing either plastic or metal materials to reduce costs.

Benefits of technology

It enables efficient and reliable connections on metal plates of varying thicknesses and curvatures, reducing noise and vibration, lowering production costs and assembly time, and improving safety and quality.

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Abstract

The invention provides a detachable fastening clamp. A detachable multi-stage automobile fastening clip attaches the body panel to the chassis slot. The fastening clip includes a U-shaped upper clip having at least two wings that are laterally spaced apart. The wing part comprises a wing tip, a bent wing part and an inclined plane. A deflection point is formed on the lower wing portion operable to engage with and disengage from the chassis slot. The U-shaped lower clip is removably attached to the U-shaped upper clip. The at least two walls are laterally spaced apart at the open wall end. A ramp, a shoulder, and a retention crosspiece are formed on the at least two walls away from the open wall ends operable to engage the ramp. A base is formed at a closed end opposite the open wall end such that the base is formed between the lower wall portions of each of the at least two walls forming the U shape.
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