Adjustable Bathtub Safety Bar With Spring-Locked Barrier Support
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Solution Overview
Problem
Existing bathtub safety bars lack adjustability and versatility, failing to effectively prevent children from accessing the bathtub while providing a secure hand grip for users.
Innovation Solution
A movable and adjustable bathtub safety bar with spring-loaded side supports and a slidable connection element, allowing the bar to be easily raised and lowered between positions, utilizing polymer or plastic materials with low friction for smooth operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed safety bar is used, then the structure is simple and reliable, but the bar lacks adjustability and cannot adapt to different bathtub configurations or user needs
Solution Approach 1:
The safety bar is designed with movable support blocks that can shift position along the bathtub wall, transforming a static structure into a dynamic one. The bar can be adjusted between multiple positions (e.g., inside the tub, outside the tub, or at intermediate positions) while maintaining structural reliability through spring-loaded mechanisms and wedge-shaped components that ensure stable positioning at each stop.
Solution Approach 2:
The support system is divided into discrete movable support blocks rather than a continuous fixed structure. Each support block can independently adjust its position, allowing the safety bar to be segmented into adjustable sections that can adapt to different bathtub configurations while keeping each individual component relatively simple.
2Ease of operation
If a movable safety bar with spring-loaded supports is used, then the bar becomes easily adjustable, but the mechanism becomes more complex
Solution Approach 1:
The spring-loaded support blocks are designed to automatically engage and disengage from positioning stops without requiring manual intervention. When the safety bar is moved, the springs automatically compress and extend to guide the bar into the correct position and lock it in place, making the adjustment process intuitive and effortless while the self-servicing mechanism reduces the need for complex control systems.
Solution Approach 2:
Complex electronic controls, motors, or hydraulic systems are replaced with a purely mechanical spring-loaded wedge mechanism. The adjustment is achieved through simple mechanical interaction between the wedge-shaped support blocks and positioning stops, eliminating the need for powered actuators or electronic controls while maintaining ease of operation.
3Ease of operation
If low-friction polymer materials are used for sliding components, then the bar moves smoothly between positions, but the materials may have lower strength compared to metal
Solution Approach 1:
Different materials are used for different functional requirements: low-friction polymer materials (such as PTFE or Delrin) are applied specifically to the sliding surfaces and connection elements where smooth movement is critical, while metal components are used for the main structural elements and load-bearing parts. This local differentiation allows the system to achieve smooth operation where needed while maintaining overall structural strength.
Solution Approach 2:
The connection elements and support blocks utilize composite construction combining polymer sliding surfaces with metal reinforcement or hybrid polymer-metal assemblies. This allows the low-friction polymer to provide smooth movement while embedded metal components or reinforced structures maintain the necessary strength and durability for safety applications.
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
The solution provides a secure, adjustable, and user-friendly safety bar that can be positioned to prevent children from entering the bathtub while offering a reliable hand grip, enhancing safety and usability.
Implementation Method 1
a spring disposed inside of the housing and coupled to the moveable support block. This spring can be used to bias the support block in an open position
Implementation Method 2
made from a polymer or plastic material that has a relatively low coefficient of friction which allows the connection element to slide over the support block
Data Source
AI summary
The invention relates to a safety bar for a bathtub to help prevent children from falling into a tub. The bar can be moved from a lower position to an upper position to form a barrier to keep children out of a tub. Alternatively, the device when it is in its extended position can be used to provide an additional support for a user when sitting in a tub, so that the user does not slide in the tub.