Adjustable Rehabilitation Device Mounting Mechanism
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Solution Overview
Problem
Existing adjustable rehabilitation and exercise devices experience issues with pedals detaching, wobbling, and lack of secure mounting, requiring improvement for both powered and user-initiated motion without separate devices.
Innovation Solution
The design includes adjustable patient engagement members on rotary members with elongated mount supports and mounts that can be radially and angularly positioned, using slots and springs to ensure secure and incremental adjustment, eliminating wobble and enabling both radial and angular positioning of pedals relative to the hubs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pedals are mounted on rotary members using conventional mounting methods, then the device structure is simple, but the pedals tend to detach and wobble during operation
Solution Approach 1:
The mounting structure incorporates adjustable mounts that can be positioned at multiple locations along elongated mount supports, allowing the pedal position to be dynamically adjusted and secured at the optimal location to eliminate wobble and prevent detachment during operation
Solution Approach 2:
The mounting system is divided into separate components including the rotary member, elongated mount supports, adjustable mounts, and patient engagement members, allowing each component to be optimized independently while working together to provide secure mounting
2Adaptability or versatility
If patient engagement members are fixed in position, then the mounting structure is simple, but the device cannot be adjusted for different user needs
Solution Approach 1:
The mounts are designed to be adjustable along the elongated mount supports, enabling the patient engagement members to be positioned at multiple radial and angular locations to accommodate different user needs and therapy requirements
Solution Approach 2:
The mounting system serves multiple functions: it provides secure attachment of pedals, enables radial and angular adjustment for different user configurations, and maintains structural stability during operation, making the device adaptable to various rehabilitation scenarios
3Adaptability or versatility
If separate devices are used for powered and user-initiated motion, then each device can be optimized for its specific function, but the overall system complexity increases
Solution Approach 1:
The rotary member assembly is designed to support both powered motion through a motor and user-initiated motion through manual operation, allowing the same hardware platform to deliver multiple therapeutic modalities without requiring separate devices
Solution Approach 2:
The system can dynamically switch between powered and user-initiated motion modes, with the mounting structure and patient engagement members remaining stable and secure regardless of which motion mode is active
Data Source
AI summary
An adjustable rehabilitation and exercise device, including a first rotary member rotatably mountable about a first hub and having a plurality of spaced apart and elongated first mount supports defined thereon; a first mount adjustably positioned on one of the first mount supports; a first patient engagement member attached to the first mount, a second rotary member rotatably mountable about a second hub the opposite the first rotary member, the second rotary member having a plurality of spaced apart and elongated second mount supports defined thereon; a second mount adjustably positioned on one of the second mount supports; and a second patient engagement member attached to the second mount. The first and second mounts are adjustably positionable on the first and second rotary members to enable adjustable positioning of the first and second patient engagement members radially relative to the first and second hubs of the rotary members and angularly relative to one another.