Energy-Storage Pen Sharpener Mechanism
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Solution Overview
Problem
Conventional pencil sharpeners require manual operation or electricity, leading to energy wastage and environmental concerns, and do not provide additional functional improvements.
Innovation Solution
An energy-storage pen implement sharpener with a base, spiral knife assembly, rotating plate, elastic device, and pressing block, where the elastic device drives the rotating plate and spiral knife assembly to sharpen the pen implement through mechanical force, allowing one-handed operation and safety features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a conventional electric pencil sharpener is used, then the sharpening function is automated, but energy consumption increases and environmental concerns arise
Solution Approach 1:
The elastic device stores mechanical energy during the insertion process and automatically releases it to rotate the spiral knife assembly, enabling the sharpener to function without external power sources. The system serves itself by converting the insertion motion into rotational sharpening motion through the elastic energy storage mechanism.
Solution Approach 2:
The patent employs a dynamic mechanism where the elastic device transitions from a compressed state during insertion to an extended state during sharpening, automatically converting linear motion into rotational motion of the spiral knife assembly without requiring separate motorization.
2Use of energy by moving object
If a conventional manual pencil sharpener is used, then energy consumption is reduced, but the operation requires repeated manual rotation and increases user effort
Solution Approach 1:
The elastic device automatically converts the downward insertion motion into rotational motion of the spiral knife assembly, eliminating the need for users to manually rotate any components. The system performs the rotation function automatically through the elastic energy release mechanism.
Solution Approach 2:
The mechanism dynamically transforms the simple downward pressing motion into the required rotational sharpening action through the elastic device's compression and extension cycle, making the operation as simple as pressing down without any rotational effort from the user.
3Ease of operation
If the spiral knife assembly is exposed during operation, then sharpening access is improved, but user safety is compromised due to potential injury
Solution Approach 1:
The protecting cover is pre-positioned to cover the spiral knife assembly before operation. The user must first insert the pen implement, which then triggers the cover to open automatically, ensuring the blade is exposed only when needed and reducing the risk of accidental contact.
Solution Approach 2:
The protecting cover acts as an intermediary barrier between the user and the sharp knife assembly. It physically separates the user from the hazardous blade during storage and transport, and only removes this protection when the sharpening operation is initiated.
4Ease of operation
If the protecting cover is always open for access, then sharpening is convenient, but the spiral knife assembly is exposed and creates safety hazards
Solution Approach 1:
The protecting cover is pre-positioned in a closed state and only opens when the pen implement is inserted and triggers the release mechanism. This ensures the blade remains protected during storage and is only exposed when the sharpening function is activated.
Solution Approach 2:
The protecting cover transitions from a static closed position to an open position dynamically in response to the insertion of the pen implement, providing just-in-time access to the blade while maintaining safety during non-operational states.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides an energy-saving, one-hand operable pen implement sharpener that prevents user injury and reduces energy consumption, while the protecting cover and inclined abutting member ensure safety by shielding the spiral knife assembly when not in use.
Implementation Method 1
an elastic device (41) disposed in the base (11)... When the elastic device extends to push the pressing block (51) back, the pressing block (51) drives the rotating plate (24) and the spiral knife assembly (21) to rotate
Data Source
AI summary
An energy-storage pen implement includes a base, a spiral knife assembly, a rotating plate, an elastic device and a pressing block. The base includes a first groove and a second groove, and the first groove is provided for inserting a pen implement. The spiral knife assembly is disposed at the first groove. The rotating plate is disposed at the first groove and connected to the spiral knife assembly. The elastic device is disposed at the second groove. One end of the pressing block is connected to the rotating plate, and another end of the pressing block is connected to the elastic device. When the elastic device moves resiliently to push the pressing block, the pressing block drives the rotating plate and the spiral knife assembly to rotate, thereby allowing the spiral knife to sharpen the tip of the pen implement.