Elevator spa, leg support, and system using same
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Solution Overview
Problem
Existing leg support devices are typically bulky, fixed in position, and lack multi-positioning capabilities, making them inefficient for use with chairs, as they cannot be easily disassembled, transported, or adjusted for comfort and convenience.
Innovation Solution
A leg support system comprising a housing with telescopic support towers, an elevator mechanism, and a drive component that allows for adjustable height and angle settings, enabling easy engagement and disengagement with a chair, collapsibility, and portability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a leg support device is made bulky and fixed in position, then it provides stable support, but it becomes difficult to transport and store
Solution Approach 1:
The leg support device is divided into multiple separable components including a base unit with elevator mechanism, support towers, and leg rest sections that can be detached and reattached. This segmentation allows the device to maintain full functionality when assembled while enabling easy disassembly for transport and storage, directly resolving the contradiction between stability and portability.
Solution Approach 2:
The device incorporates movable and adjustable components including telescopic support towers, height-adjustable leg rests, and rotatable sections that transition between fixed and mobile states. These dynamic features allow the device to provide stable fixed support during use while becoming compact and portable when disassembled, addressing the contradiction between reliability and ease of operation.
2Reliability
If a leg support device is made fixed in position, then it provides consistent support, but it cannot be easily disassembled or transported
Solution Approach 1:
The device is segmented into modular components with standardized connection interfaces that simplify assembly and disassembly operations. The separable design with quick-connect mechanisms reduces the complexity of putting the device together and taking it apart, while each module maintains the structural integrity needed for consistent support when assembled.
Solution Approach 2:
The base unit with elevator mechanism serves multiple functions: it provides height adjustment for the leg rests, acts as a stable support structure when towers are extended, and serves as a compact storage unit when towers are retracted. This multi-functionality reduces the need for additional components, simplifying overall device complexity while maintaining reliable support.
3Device complexity
If a leg support device lacks multi-positioning capabilities, then it has simple structure, but it reduces user comfort and adaptability
Solution Approach 1:
The device incorporates multiple adjustable parameters including height adjustment via elevator mechanisms, angle adjustment of leg rests, and telescopic extension of support towers. These dynamic adjustment capabilities enable the device to adapt to various user positions and preferences while maintaining a relatively simple overall structure through the use of standardized adjustment mechanisms.
Solution Approach 2:
The device enables multi-positioning through changes in key parameters: vertical height of leg rests controlled by elevator mechanisms, angular orientation of leg rest sections, and extended length of telescopic towers. By providing controlled variation in these parameters, the device achieves high adaptability without requiring completely different structural configurations.
4Ease of operation
If a leg support device is made lightweight and collapsible, then it becomes easy to transport, but it may reduce structural stability
Solution Approach 1:
The device uses telescopic support towers that can be extended to provide long, stable support legs when in use, yet remain compact when retracted for transport. The towers incorporate locking mechanisms that ensure structural stability when extended, while the overall lightweight construction and collapsible design maintain portability, resolving the contradiction between transportability and structural stability.
Data Source
AI summary
A chair add-on, leg support, leg support system, method for retrofitting a chair is described herein. The leg support system is preferably, but not necessarily, easy to use, store, reposition, and/or operate by users of all ages. The leg support system preferably may be constructed directly with a chair. Alternatively, the leg support system may, but does not necessarily, include a remote selectable control.