Bicycle Repair Stand with Retractable Tool System
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Solution Overview
Problem
Bicycle repair stands face issues with tool organization and maintenance, as tethered tools tend to tangle and strike the stand, causing damage, and tools stored within cavities are difficult to access, especially in sunny conditions.
Innovation Solution
A bicycle repair stand with retractable tools coupled via cables and counterweights within an upright column, featuring dedicated channels to prevent tangling and a tool shield to absorb impact, allowing easy exterior access and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If tools are tethered to the bicycle stand, then tools are easily accessible, but the tethers and tools tangle through repeated use or environmental conditions
Solution Approach 1:
A retractable tether mechanism serves as an intermediary between the tool and the stand, allowing the tether to extend when the tool is pulled out and automatically retract when released. This mediator prevents tangling by controlling the tether's movement and keeping it organized within the stand structure.
Solution Approach 2:
The tether system transitions from a static, fixed-length tether to a dynamic, variable-length tether that can extend and retract. This dynamic behavior allows the tether to adapt to the tool's position, maintaining organization while enabling easy access during repairs.
2Reliability
If tools are tethered to the bicycle stand, then tools remain attached to the stand, but the tools strike the stand causing damage to the finish or tools
Solution Approach 1:
A cushioning element is positioned between the tool and the stand surface to absorb impact forces before they reach the stand finish or tool. This protective layer prevents damage from accidental strikes while the tool is being used or retracted.
3Stability of the object's composition
If tools are retained within a cavity of the stand, then tools are protected and organized, but the tools are difficult to observe and require interior grasping and manipulation
Solution Approach 1:
The retractable tether acts as an intermediary that connects the tool to the stand while allowing the tool to be pulled outward for easy access. The tether mechanism mediates between the organized stored position and the accessible working position, making tools visible and reachable without compromising organization.
Solution Approach 2:
The tool is pre-positioned within the cavity in an organized manner, and the retractable tether is pre-configured to guide the tool's extraction. This preliminary arrangement allows the user to simply pull the tool outward without complex interior manipulation, combining organization with ease of access.
4Ease of operation
If tools are stored along the exterior tool storage face, then tools are easily accessible, but the cables may tangle within the column
Solution Approach 1:
The interior column space is segmented into dedicated channels, with each channel assigned to a specific cable and counterweight assembly. This segmentation prevents cables from tangling by providing separate, organized pathways for each tool's cable, maintaining both accessibility and organization.
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 retractable tool system prevents tangling and damage, enhances tool accessibility, and protects the stand from strikes, improving usability and durability.
Implementation Method 1
Each of the one or more tools is coupled with a retraction mechanism with the cable. In one example, the refraction mechanism includes a counterweight coupled with the cable and positioned within the upright column.
Implementation Method 2
a tool shield is coupled along the tool storage face. The tool shield is in one example a polymer and configured to absorb the force of tool strikes against the upright column
Data Source
AI summary
A bicycle repair stand includes an upright column. A first repair station includes a repair rack extending from the upright column in a first direction. The repair rack retains a bicycle at an elevated position relative to a column base. A tool storage face is provided along an exterior of the upright column. At least one retractable tool is coupled along the tool storage face. The at least one retractable tool includes a tool, a cable coupled with the tool, and a retraction mechanism coupled with the cable and configured to pull the tool toward the tool storage face when released by an operator.