Removable Snowmobile Seat Assembly with Spring-Loaded Mounting
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Solution Overview
Problem
Existing snowmobile seat assemblies lack a convenient and tool-free method for secure attachment and detachment, which complicates access and comfort for riders, especially in remote or dynamic environments.
Innovation Solution
A removable seat assembly with a frame base, seat riser, and armrests that include mounting features allowing toolless attachment and detachment to the snowmobile tunnel, distributing load uniformly and providing structural support through a combination of frame members and attachment mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the seat assembly is made removable with toolless attachment, then ease of operation is improved, but reliability of attachment may worsen
Solution Approach 1:
The patent replaces traditional mechanical fastening systems (bolts, screws, tools) with a spring-loaded pin mechanism that uses elastic deformation and mechanical interlocking. The spring pin automatically engages with retaining features on the tunnel and skis, providing secure attachment without requiring tools. The spring force maintains constant pressure to ensure reliable engagement while allowing toolless operation.
Solution Approach 2:
The seat assembly incorporates self-aligning and self-securing features. The spring-loaded pins automatically engage with the retaining features when the seat is positioned on the tunnel, and the design includes self-centering mechanisms that guide proper alignment. The system serves itself by using the weight of the seat and rider to activate the locking mechanism, eliminating the need for external tools or complex assembly procedures.
2Ease of operation
If the seat assembly structure is simplified for easy removal, then ease of operation is improved, but strength may worsen
Solution Approach 1:
The seat assembly is divided into distinct modular components: the seat cushion, backrest, armrests, and the attachment mechanism with spring-loaded pins. This segmentation allows each component to be optimized independently - the attachment mechanism is simplified for easy removal while the seat structure maintains its strength through separate structural elements. The modular design enables the seat to be removed as a complete unit without compromising the integrity of individual components.
Solution Approach 2:
The patent combines multiple functions into integrated structural elements. The frame members serve dual purposes: providing structural support for the seat while also incorporating the attachment points for the spring-loaded pins. The armrests are integrated with the attachment mechanism, so the same structural elements that provide rider support also facilitate the removal function. This merging maintains strength while enabling ease of operation.
Data Source
AI summary
According to one or more aspects of the present disclosure, a removable seat assembly is provided comprising a first mounting feature engageable with the tunnel of a snow vehicle, and optionally a second mounting feature engageable with the tunnel of the snow vehicle. The first mounting feature may automatically engage the tunnel upon engagement of the second mounting feature with the tunnel. The seat assembly may comprise a frame base, a riser defining a chamber therein positioned on the frame base, a seat back frame, and an arm rest secured to the frame base and the seat back frame.