Hand-Held Stamp Integral Dust Cover Mechanism
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Solution Overview
Problem
Conventional pre-inked hand stamps with dust cover doors are prone to being lost or left open, exposing the ink pad to dust and ink discharge due to lack of automatic closure mechanisms.
Innovation Solution
A pre-inked hand-held stamp design featuring a pair of exteriorly mounted, oppositely moving dust cover doors that automatically open and close with the stamping operation, utilizing inwardly directed pins and a spring mechanism for one-step, one-handed operation and secure dust protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If removable or pivotally mounted covers are used, then ease of operation is improved, but reliability deteriorates due to risk of loss or misplacement
Solution Approach 1:
The dust cover is merged with the stamp body through integral attachment, eliminating the risk of loss while maintaining operational ease through the pivotally mounted door mechanism that automatically opens and closes with stamping operations
2Ease of operation
If dust cover doors are left open for access, then ease of operation is improved, but object-affected harmful factors worsen due to dust exposure and ink discharge
Solution Approach 1:
The dust cover doors are preliminarily positioned to automatically open before the stamping operation begins and close after the operation completes, ensuring continuous protection against dust exposure while maintaining ease of access during use
Solution Approach 2:
The dust cover mechanism serves itself by automatically opening and closing through the stamping operation's own motion, eliminating the need for separate manual actions to protect the ink pad from dust
3Reliability
If automatic closure mechanism is added, then reliability is improved, but device complexity increases
Solution Approach 1:
The existing stamping operation's motion is utilized to automatically open and close the dust cover doors, eliminating the need for separate actuators or complex control mechanisms while achieving reliable automatic closure
Solution Approach 2:
The pivotally mounted dust cover doors serve multiple functions: protecting the ink pad from dust, providing easy access during operations, and automatically closing through the stamping motion itself, thereby achieving reliability without additional complexity
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
Ensures the dust cover remains attached and functional, preventing dust exposure and ink discharge while allowing easy, one-handed operation, maintaining the inked stamp pad's integrity.
Implementation Method 1
a spring mechanism for one-step, one-handed operation and secure dust protection
Implementation Method 2
inwardly directed pins integral to the dust cover doors. Movement of the subassembly toward the workpiece outside the stamp body engages the pins to pivot the dust cover doors open
Data Source
AI summary
A pre-inked hand-held stamp includes a pair of outwardly positioned dust cover doors that are opened by movement of the internal components of the stamp during use.