Escalator Deflector Device with Modular Brush Unit
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Solution Overview
Problem
Existing safety devices for escalators and moving walks are either complex to assemble or compromise on stability and strength for easier assembly.
Innovation Solution
A deflector device with a deflector profile and brush unit that allows for easy, quick vertical connection to the balustrade base, featuring snap-in fastening mechanisms for tool-free installation and replacement, ensuring stability and strength while simplifying assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional robust carrier profiles with wedge elements are used to ensure stability, then the strength and stability of the safety device is improved, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The deflector device is divided into separate modular components: a deflector profile that attaches to the balustrade base and a brush unit that attaches to the deflector profile. This segmentation allows each component to be optimized independently and assembled in a simplified sequence without requiring complex fastening mechanisms like wedge elements.
Solution Approach 2:
Instead of inserting brush elements from the front into a large carrier profile and securing them with wedge elements inserted from the end, the invention inverts the assembly sequence: the deflector profile is first attached to the balustrade base, then the brush unit is attached to the deflector profile in a simplified manner, eliminating the need for complex wedge-based securing.
2Ease of operation
If simpler assembly methods are used for the deflector device, then the ease of assembly is improved, but the robustness and stability of the safety device is reduced
Solution Approach 1:
By segmenting the deflector device into a deflector profile and a brush unit that attach in sequence, the invention achieves simple assembly while maintaining stability. Each segment can be attached using straightforward methods without compromising the overall structural integrity of the safety device.
Solution Approach 2:
The deflector profile acts as an intermediary component between the balustrade base and the brush unit. This intermediate element provides a stable mounting surface for the brush unit while being easily attachable to the balustrade base, thus achieving both ease of assembly and robustness.
3Ease of repair
If brush units are designed for quick replacement, then the ease of repair is improved, but the connection strength between brush units and deflector profile may be compromised
Solution Approach 1:
The brush unit is designed as a separate replaceable module that attaches to the deflector profile. This segmentation enables easy removal and replacement of brush units while maintaining a strong connection during use, as the modular design allows for optimized attachment mechanisms that balance ease of replacement with connection strength.
Solution Approach 2:
The connection between the brush unit and deflector profile is designed to be dynamically adjustable: during normal operation, the connection is strong and stable; during maintenance, the connection can be easily released and reattached. This dynamic characteristic enables both strong connection and easy replacement.
Data Source
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AI summary
An escalator (1) or moving walkway, comprising a step conveyor (4) with steps (5) or a pallet conveyor with pallets and a balustrade (2) with handrail (2.2) held by a balustrade base (3). An anti-pinch device 6 or deflector device (6) is arranged on the balustrade base, which prevents objects and persons from being pinched or trapped between the steps and the balustrade base. The anti-pinch device 6 or deflector device (6) comprises a receiving profile (7) or base profile (7) arranged on a vertical area (3.1) of the balustrade base and a brush unit (8). The receiving profile (7) or base profile (7) or base profile (7) has fastening means or fastening parts (7.1, 7.2) for vertically joining and/or vertically connecting the brush unit (8).