Stair Tread Light Strip Mounting Rail for Quick Replacement
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Solution Overview
Problem
Existing light strip solutions for public transport vehicle stairs require complete replacement of stair treads when the light strip fails, leading to significant material waste and cost, as they are not easily removable from the groove.
Innovation Solution
A mounting rail with a U-shaped cross-section is inserted into the groove, equipped with locking elements that secure it in place, allowing for easy replacement of the light strip without replacing the stair tread, and is made of transparent plastic to protect and illuminate the step.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the light strip is directly embedded in the groove of the stair tread, then the light strip is securely fixed, but the entire stair tread must be replaced when the light strip fails
Solution Approach 1:
The system is divided into separate functional components: the stair tread, the mounting rail, and the light strip. The mounting rail acts as an intermediate carrier that can be independently removed and replaced, allowing the light strip to be exchanged without replacing the entire stair tread structure.
Solution Approach 2:
The mounting rail serves as an intermediary component between the stair tread groove and the light strip. It provides a removable interface that enables easy replacement of the light strip while maintaining secure fixation during operation, resolving the contradiction between reliability and ease of repair.
2Ease of manufacture
If the light strip is directly embedded in the groove, then installation is simple, but material waste and costs increase due to complete tread replacement
Solution Approach 1:
By segmenting the lighting assembly from the stair tread through the introduction of a separate mounting rail, the system enables replacement of only the necessary components (mounting rail and light strip) rather than the entire tread, thereby reducing material waste while maintaining installation simplicity.
Solution Approach 2:
The mounting rail and light strip can be removed and replaced as a separate assembly, allowing the stair tread to be retained and reused. This prevents unnecessary disposal and replacement of the tread structure, reducing material waste and associated costs.
3Ease of manufacture
If the light strip is exposed without protection, then installation is easier, but the light strip is vulnerable to damage from foot traffic and cleaning
Solution Approach 1:
The mounting rail acts as a protective intermediary that shields the light strip from direct exposure to foot traffic and cleaning activities. The rail can be designed with a protective cover that allows light transmission while preventing physical damage to the LEDs, thus enhancing reliability without complicating installation.
Solution Approach 2:
The mounting rail can incorporate a transparent protective cover or shell that protects the light strip from mechanical damage while allowing light to pass through. This thin protective layer maintains ease of installation while providing necessary protection against foot traffic and water spray during cleaning.
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
Enables resource-saving replacement of the light strip by allowing it to be detached and reinserted, maintaining the stair tread's functionality while protecting the strip from damage, thus reducing material waste and maintenance costs.
Implementation Method 1
The mounting rail is made of transparent plastic, allowing the LEDs to emit light through it
Implementation Method 2
The receiving groove is equipped with two locking means which provide for engagement from behind by a receiving rail with corresponding locking elements
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a light strip arrangement, particularly for doors of a public transport vehicle, consisting of a stair step with a receiving groove 14 and a light strip 22 which can be inserted into the receiving groove 14, wherein the receiving groove 14 is located below the front visible edge. To enable the replacement of the light strips without time-consuming additional work, the invention provides that the receiving groove 14 is equipped with two locking elements which allow the receiving rail 1 with corresponding locking elements to engage from behind, and the light strip 22 is secured in the receiving rail 1. The locking elements of the receiving rail, in which the light strip is inserted, allow for the quick replacement of a defective light strip without the need for the time-consuming process of removing it from the receiving groove using a potting compound.