Battery-Free Mechanical Timer With Rotating Number Blocks
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Solution Overview
Problem
Existing timers, whether mechanical or electronic, suffer from complexity leading to timing errors or require frequent battery replacements for accurate timekeeping.
Innovation Solution
A timer design featuring a base, a driving shaft, and an indicator arm with rotatable hour and minute blocks driven by gears and protrusions, eliminating the need for batteries and simplifying the mechanical structure for precise time display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a mechanical structure with minute hand and second hand is used, then the timer can display time, but the structure becomes complex and timing errors occur
Solution Approach 1:
The timer is divided into independent modular components: a base unit, a rotatable indicator arm, and separate hour/block elements. Each component performs a specific function, allowing the system to achieve accurate timekeeping through coordinated simple parts rather than a complex integrated mechanical structure.
Solution Approach 2:
The patent uses visual representations (numbered blocks) instead of traditional mechanical hands to indicate time. The hour and minute are represented by discrete numbered elements that can be clearly read, eliminating the need for continuous mechanical dial readings and reducing timing errors associated with manual reading of mechanical indicators.
2Measurement precision
If an electronic digital display mode is used, then the timer displays time accurately, but a battery is required which needs frequent replacement or charging
Solution Approach 1:
The timer utilizes the natural rotation of the Earth (day-night cycle) as its power source. The indicator arm rotates automatically with the Earth's rotation, eliminating the need for external batteries or electrical power. The system serves itself by harnessing planetary motion rather than requiring human-provided energy storage devices.
Solution Approach 2:
The patent replaces electronic digital display systems with a purely mechanical rotation-based indicator system. Instead of using electronic components that require batteries, the time is displayed through the mechanical rotation of the indicator arm and numbered blocks, substituting electronic energy consumption with mechanical motion driven by Earth's rotation.
3Ease of operation
If traditional mechanical timer structures are used, then the timer can function, but the structure is complex and requires frequent maintenance
Solution Approach 1:
The patent extracts and eliminates unnecessary complex mechanical components from traditional timer designs. By using a simplified structure with a base, rotatable indicator arm, and numbered blocks, the design removes the need for complex gear systems, multiple hands, and intricate mechanical linkages while maintaining timekeeping functionality.
Solution Approach 2:
The indicator arm serves multiple functions simultaneously: it indicates both hour and minute, provides visual time display, and rotates automatically with the Earth. This multi-functionality reduces the need for separate components for each function, simplifying the overall structure while improving ease of operation.
Data Source
AI summary
The present application provides a timer, including a base, a driving shaft, and an indicator arm. The driving shaft is rotatably mounted on the base and selectably rotates relative to the base. The indicator arm includes a second support and a plurality of hour blocks. The second support is rotatably connected to the driving shaft. The hour blocks each include a second block body and a second gear. The second block body is rotatably connected to the second support. The second gear is fixedly connected to the second block body. Second protrusion is correspondingly arranged on a rotation path of the second gear around the driving shaft. The second gear has second tooth grooves. The second protrusion selectably extends into the second tooth grooves to drive the second gear to rotate relative to the second support so as to drive the hour blocks to rotate relative to the second support.