Under-Desk Leg Exerciser with Adjustable Chair Hook
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Solution Overview
Problem
Existing leg exercisers are not easily adaptable to office chairs, limiting the ability to exercise while working, as they often require modifications to the chair or cannot fit under a desk due to design constraints.
Innovation Solution
A leg exerciser with an adjustable hook feature that engages and disengages easily with office chair casters, an adjustable distance between the hook and pedals, and a removable hook for stability, allowing users to customize the setup and connect the device securely to the chair, with integrated wheels for mobility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a traditional exercise cycle is used, then exercise functionality is provided, but it cannot be placed completely under a desk due to elevated handlebars and seat design
Solution Approach 1:
The exercise device is segmented into compact components that can be positioned under a desk, with only essential elements (pedals and resistance mechanism) occupying desk-space, while the seat and handlebars are eliminated or repositioned
Solution Approach 2:
The device transitions from a three-dimensional full-cycle design to a two-dimensional under-desk configuration, utilizing the vertical space under the desk rather than requiring horizontal clearance for traditional bike components
2Volume of moving object
If the exercise device is made compact for under-desk placement, then space efficiency is improved, but adaptability to different office chairs is reduced
Solution Approach 1:
The connection mechanism incorporates adjustable and movable elements that can adapt to different chair configurations, allowing the compact device to interface with various office chair types despite its reduced size
Solution Approach 2:
The device employs a universal connection interface that can attach to multiple types of office chair casters and floor supports, enabling one compact design to serve multiple chair configurations and desk arrangements
3Device complexity
If the hook is made fixed for structural simplicity, then device complexity is reduced, but adaptability to different user heights and chair types is limited
Solution Approach 1:
The hook is designed as an adjustable component that can be repositioned or reconfigured, allowing users to customize its position and orientation to match their height and chair configuration, transforming a static element into a dynamic adaptive feature
4Ease of operation
If the hook is made removable for easy setup, then ease of operation is improved, but structural stability during high-intensity workouts may be compromised
Solution Approach 1:
The connection system transitions from permanently fixed to dynamically adjustable, allowing users to install and remove the device easily while maintaining stability through proper engagement mechanisms that secure the hook to the chair or floor support during use
Data Source
AI summary
Improvements in an exercise cycle is disclosed. The cycle is adaptable to an office chair with a hook feature that allows for easy engaging and disengaging of an office chair floor leg, support or caster. The extending hook allows for users of different heights to make use of the chair hook without requiring a user to change hooks to accommodate different heights of a user and office chair casters. The pedals are connected through a common axis and connect to a loading mechanism. There can be a flywheel and a transmission that alters the turning rate of the flywheel and/or the loading mechanism. The size and shape of the resistance loading housing is configured to fit under a common office desk. The user's weight, is transferred to the plate through the office chair caster to improve the stability of the desk bike.