Folding Lawn Mower Chassis With Rotating Discs
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Solution Overview
Problem
Traditional lawn mowers require larger, fixed chassis for longer mowing blades, increasing size and storage/transportation costs, while existing solutions do not effectively address the need for efficient mowing and compact storage.
Innovation Solution
A folding-type chassis with a fixing disc and rotating discs that can be unfolded for increased mowing area and folded for reduced storage space, utilizing a lead-screw motor and rotating arms to facilitate this transformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed chassis with longer mowing blades is used, then mowing efficiency is improved, but the size and storage/transportation space increase
Solution Approach 1:
The chassis transitions from a fixed structure to a dynamic, adjustable structure. The rotating discs can be rotated between a working position (transverse arrangement for maximum mowing width) and a storage position (longitudinal arrangement for compact footprint), allowing the same chassis to serve both high-productivity mowing operations and space-efficient storage/transportation
Solution Approach 2:
The patent reconfigures the spatial arrangement of mowing blades by rotating discs between transverse and longitudinal orientations. This dimensional transformation allows the chassis to maximize mowing width (transverse) during operation while minimizing storage footprint (longitudinal) during storage, effectively utilizing different spatial dimensions for different operational states
2Area of moving object
If a fixed chassis is used for longer mowing blades, then mowing area is increased, but device complexity and manufacturing cost increase
Solution Approach 1:
The chassis is divided into a fixed central disc and multiple detachable/rotatable outer discs. This segmentation allows the mowing area to be adjusted by adding or removing outer discs, and the rotating mechanism enables compact storage, avoiding the need for a permanently large complex structure
3Productivity
If the chassis size is increased for longer blades, then mowing efficiency is improved, but transportation and storage costs increase
Solution Approach 1:
The chassis employs dynamic reconfiguration through rotating discs that can switch between transverse arrangement (maximizing mowing width for efficiency) and longitudinal arrangement (minimizing chassis length for transportation). This dynamic adaptability resolves the contradiction between operational performance and storage/transport requirements
Data Source
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AI summary
A mower folding-type chassis, comprising a fixing disc and at least one rotating disc rotationally connected with the fixing disc; the fixing disc is fixedly arranged at the bottom of the mower; mowing blades are respectively arranged within the shells of the fixing disc and the rotating disc; a driving device used for driving the mowing blades to rotate is arranged in the mower; through the arrangement of a fixing disc and at least one rotating disc rotationally connected with the fixing disc, when mowing a lawn, the rotating discs can be rotated and unfolded relative to the fixing disc, thereby improving the mowing efficiency, and when the mower needs to be stored or transported, the rotating discs can be rotated and folded relative to the fixing disc, thus reducing the space occupation of the mower and satisfying the user's requirement.