Push-Action Compass With Retractable Legs for Safe Storage
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Solution Overview
Problem
Conventional compasses pose safety risks due to exposed needle tips and susceptibility to pencil core breakage during storage.
Innovation Solution
A push-action compass with retractable compass legs that switch between extended and retracted states via a telescopic assembly, housing the tips within housings for safety and preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the compass legs are kept extended for easy access, then the ease of operation is improved, but the user safety deteriorates due to exposed needle tips
Solution Approach 1:
The compass legs are nested within the housing when not in use, with the housing enclosing the compass legs and their tips. This nesting mechanism allows the compass to maintain a safe, compact form during storage while enabling quick extension when needed for use.
2Ease of operation
If the compass legs are kept extended for use, then the ease of operation is improved, but the reliability deteriorates due to pencil core breakage susceptibility
Solution Approach 1:
The housing provides protective enclosure for the compass legs and drawing members when retracted, shielding them from external impacts and conditions that could cause breakage. The telescopic mechanism allows easy extension for use while maintaining protection during storage.
3Object-affected harmful factors
If the compass legs are retracted for safe storage, then the user safety is improved, but the ease of operation deteriorates due to extended retraction time
Solution Approach 1:
The telescopic assembly incorporates a push-button mechanism that enables dynamic transition between extended and retracted states. Users can quickly extend the compass legs by pressing a button and the legs can be retracted automatically or with minimal effort, providing both safety and convenience.
Data Source
AI summary
A push-action compass is provided which overcomes drawbacks of conventional compasses by retracting its compass legs when not in use. The compass includes a body; a push-type telescopic assembly arranged on the body; first and second housings each connected to the body and configured to open and close relative to one another; and first and second compass legs, each sleeved by the respective housing and rotatably connected to the telescopic assembly. When the telescopic assembly is actuated, it switches between an extended state—where the tips of the compass legs protrude for use—and a retracted state—where the tips are housed within the housings to prevent accidental injury or damage.