Anti-disassembly Handrail with Nested Cover and Support Member
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Solution Overview
Problem
In behavioral health facilities, conventional handrails can be easily dislodged or used by patients to harm themselves, posing a risk, and their installation is often complex and requires additional components like backer boards or mounting brackets.
Innovation Solution
A handrail system featuring a support member with endcaps and a cover that is difficult to disassemble, made from impact-resistant materials like PVC or ABS, where the cover snaps onto the support member in a way that prevents easy removal, and is easier to install with fewer components compared to conventional designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional handrails are used in behavioral health facilities, then they provide basic handrail functionality, but they can be easily dislodged or used by patients to harm themselves
Solution Approach 1:
The handrail is divided into multiple segments: a support member, a cover, and endcaps. These segments are connected through interference fits and friction forces, creating a segmented structure that is difficult to disassemble. The cover is split into multiple pieces that must be removed sequentially, preventing quick access to harmful components.
Solution Approach 2:
The cover is nested over the support member, with the cover having an inner surface that frictionally engages the outer surface of the support member. The endcaps are nested at the ends of the support member, creating a nested configuration where components are contained within one another, making disassembly difficult.
2Ease of manufacture
If conventional handrails are installed, then they can be mounted on walls, but installation requires additional components like backer boards or mounting brackets and is complex
Solution Approach 1:
The support member integrates multiple functions into a single component: it provides structural support, includes mounting features directly attached to it (eliminating the need for separate backer boards or mounting brackets), and receives the cover and endcaps. This merging reduces the total number of components and simplifies installation.
Solution Approach 2:
The support member serves multiple purposes: it acts as the structural backbone, includes integrated mounting features for wall attachment, and provides the interface for the cover and endcaps. This multi-functionality eliminates the need for separate dedicated mounting components.
3Reliability
If the cover is made from impact-resistant materials like PVC or ABS, then patient safety is improved, but the material selection is limited
Solution Approach 1:
The patent specifies covers made from impact-resistant materials such as PVC or ABS, changing the material parameter to achieve desired safety properties. The cover may also be coated with a urethane material to modify surface properties and provide additional safety features.
Data Source
AI summary
A handrail kit that includes a cover, a first endcap, a second endcap, and a support member is provided. The support member includes a longitudinal axis, a first end along the longitudinal axis, a second end along the longitudinal axis, a first lateral side, a second lateral side, a first longitudinal side, and a second longitudinal side. The first lateral side of the support member is configured to be secured directly against a mounting surface. The first endcap is configured to mate with the first end of the support member and the second endcap is configured to mate with the second end of the support member. The cover is configured to be placed over the second lateral side of the support member and to engage the first longitudinal side and the second longitudinal side of the support member.