Curved Snowmobile Clutch Guard for Debris Redirection
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Solution Overview
Problem
Existing clutch assemblies in snowmobiles do not effectively protect the rider from debris generated during operation, which can pose a safety risk.
Innovation Solution
A clutch guard with a curved profile is positioned between the first and second clutch, featuring a guard that redirects debris away from the rider by channeling it through a tangential path defined by the arc of the guard wall, capturing and slowing down the debris before it reaches the occupant seating area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a clutch guard is added to protect the rider from debris, then safety is improved, but device complexity increases
Solution Approach 1:
The clutch guard acts as an intermediary component positioned between the clutch assembly and the rider to intercept and redirect debris. The curved guard wall with tangential path creates a protective barrier that channels debris away from the rider without requiring fundamental changes to the clutch operation or adding complex active control systems.
2Object-affected harmful factors
If the clutch guard uses a curved profile with tangential path to redirect debris, then debris redirection effectiveness is improved, but manufacturing complexity increases
Solution Approach 1:
The clutch guard employs a curved profile with a tangential path that follows the rotational trajectory of debris. This curved geometry naturally guides debris away from the rider along a tangential direction, converting the harmful radial debris pattern into a controlled tangential flow path without requiring complex active control mechanisms.
3Object-affected harmful factors
If the clutch guard is positioned to extend around the first clutch, then protective coverage is improved, but space requirements increase
Solution Approach 1:
The clutch guard is designed to nest within the existing clutch assembly structure, extending around the first clutch in a compact configuration. The guard wall follows the contours of the clutch components, utilizing the existing spatial arrangement to provide maximum protective coverage without significantly increasing the overall footprint of the clutch assembly.
Data Source
AI summary
A clutch assembly includes a first clutch defining a central axis and configured to be coupled to a prime mover of a snowmobile, a second clutch coupled to the first clutch and configured to be coupled to a tractive assembly of the snowmobile, and a clutch guard positioned between the first clutch and the second clutch. The clutch guard includes a guard wall having a curved profile extending at least partially around the first clutch, a first mounting flange positioned at or proximate a first end of the guard wall where the first mounting flange is configured to couple to a first mounting interface, and a second mounting flange positioned at or proximate a second end of the guard wall where the second mounting flange is configured to couple to a second mounting interface. The first mounting flange and the second mounting flange are positioned longitudinally forward of the central axis.