Illuminated Seat Belt Buckle Unlock Button Light Guide
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Solution Overview
Problem
Current seat belt buckle designs with luminous functions primarily rely on combining a housing with a light-transparent or light-guiding member, which may limit flexibility and aesthetic options for guiding, warning, and decorative effects.
Innovation Solution
An illuminated seat belt buckle featuring a light-guide body and outer covering layer on the unlock button, combined with a light-emitting module that includes a light guider and element, allowing for guided light emission and providing both guiding and decorative functions through a light incident area and optional second illuminating area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light-transparent member or light-guiding member is combined with the housing to achieve luminous effect, then the guiding function is improved, but the device complexity increases
Solution Approach 1:
The patent integrates the light-guiding function directly into the unlock button structure by forming a light guide body from the button material itself, rather than adding a separate light-guiding member. This merging of functions reduces component count and simplifies the overall device structure while maintaining the luminous guiding effect.
Solution Approach 2:
The unlock button serves multiple functions: mechanical unlocking operation and light guiding indication. By making the button material itself light-guiding, the design achieves multi-functionality without requiring additional components, thereby reducing device complexity while providing both operational and illuminating functions.
2Illumination intensity
If the outer covering layer is made of translucent material, then the decorative effect is improved, but the light transmission control becomes less precise
Solution Approach 1:
The patent applies different material properties to different regions: the outer covering layer uses translucent material for decorative regions where diffuse light transmission is desired, while the light guide body uses optically clear material for regions requiring precise light transmission and direction. This local differentiation of material quality allows both decorative effect and precise light control to coexist.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances guiding and warning functions while offering customizable decorative effects, with the ability to use opaque or translucent materials for the outer covering layer and integrating the illuminating portion either as an additional component or directly on the unlock button, providing a more uniform and versatile luminous experience.
Implementation Method 1
a light guider and a light-emitting element, wherein the light guider has a light-guiding port to guide the lights generated from the light-emitting element into the light incident area of the illuminating portion
Implementation Method 2
a light-emitting module, configured on the buckle body, comprising a light guider and a light-emitting element
Data Source
AI summary
The present invention provides an illuminated seat belt buckle, includes a buckle body, an unlock button configured on an upper open end of the buckle body, an illuminating portion, and a light-emitting module. The illuminating portion, configured at an upper portion of the unlock button, consists of a light-guide body and an outer covering layer, and a light incident area located on the side of the illuminating portion and a first illuminating area located above the illuminating portion are formed at a portion of the light-guide body exposing from the outer covering layer. The light-emitting module is configured on the buckle body, which includes a light guider and a light-emitting element, in which the light guider has a light-guiding port. The light-guiding port is used to guide the lights generated from the light-emitting element into the light incident area of the illuminating portion to make the first illuminating area emits light. Under above constructions, the unlock button combines with the illuminating portion to form as a light-emitting button so as to make the light-emitting button to have guiding and warning functions and/or decorative luminous effects.