Treadmill Rear Guard Comb Mechanism for Debris Deflection
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Solution Overview
Problem
Existing treadmill designs face issues with debris and objects entering gaps between the guard and moving components, leading to potential hazards and maintenance challenges.
Innovation Solution
A comb guard with interlaced protrusions and channels is integrated into the rear assembly of the treadmill, deflecting debris away from the moving surface without binding, and is detachably coupled for easy maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a guard is added to protect the rear area of the treadmill, then safety is improved, but gaps between the guard and moving components allow debris to enter
Solution Approach 1:
A comb guard is introduced as an intermediary component between the rear guard and the moving surface. The comb guard fills the gap space with its teeth structure, preventing debris from reaching the gap while allowing the moving surface to pass through. This mediator resolves the contradiction by blocking harmful debris paths without compromising the safety function of the rear guard.
Solution Approach 2:
The guard assembly is segmented into multiple components: the rear guard for safety protection and the comb guard with multiple teeth for debris management. This segmentation allows each component to perform its specific function - the rear guard provides safety coverage while the comb guard's segmented teeth structure prevents debris entry without binding the moving surface.
2Object-affected harmful factors
If a comb guard with interlaced protrusions is used to deflect debris, then debris prevention is improved, but the structure becomes more complex
Solution Approach 1:
The comb guard structure performs multiple functions simultaneously: it deflects debris away from the gap, allows the moving surface to pass through without binding, and maintains the safety coverage of the rear guard. This multi-functionality justifies the increased structural complexity by delivering multiple benefits from a single component.
3Ease of repair
If the guard is made detachable for easy maintenance, then ease of repair is improved, but the secureness of the interface may be compromised
Solution Approach 1:
The comb guard is designed with dynamic attachment characteristics - detachable for maintenance but securely fixed during operation. The attachment mechanism allows easy removal when needed while providing robust fixation during treadmill use, resolving the contradiction between maintenance ease and interface security through conditional state changes.
Data Source
AI summary
A treadmill or other exercise machine having a comb guard is described. For example, an assembly having a comb guard (e.g., an interlaced comb guard) may be disposed at a rear area of a treadmill. The comb guard may deflect objects or debris away from a gap between a moving surface of the treadmill and a rear guard or housing, and thus displace or move objects away from the moving surface of the treadmill.