Sticker Placing Device One-Way Rotatable Coupling
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Solution Overview
Problem
Existing sticker placing devices are cumbersome to use and maintain, with complex coupling mechanisms that can lead to durability issues and difficulty in removing and replacing sticker cartridges.
Innovation Solution
A sticker placing device with a guiding channel and rotatable coupling members that allow for easy insertion and removal of the sticker cartridge, featuring a pusher with engagement heads and biasing springs to ensure proper alignment and secure attachment, and a one-way coupling mechanism to prevent unintended sticker placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex coupling mechanism is used to secure the sticker cartridge, then the attachment reliability is improved, but the ease of operation deteriorates
Solution Approach 1:
The coupling mechanism transitions from a static locked state to a dynamic released state through rotational movement. The rotatable coupling member allows the user to easily transition between secured and released states, making cartridge removal simple while maintaining secure attachment during use.
Solution Approach 2:
The coupling mechanism is divided into separate functional elements: a rotatable coupling member with engagement features, and corresponding coupling surfaces on the cartridge. This segmentation allows independent optimization of each component for both secure engagement and easy release.
2Reliability
If a secure coupling mechanism is used to prevent unintended sticker placement, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The one-way coupling mechanism uses dynamic engagement where the coupling member can rotate to engage or disengage, but cannot rotate backward once engaged. This provides reliable prevention of unintended sticker placement while keeping the mechanism simple and intuitive to operate.
Solution Approach 2:
Instead of using a complex locking mechanism that requires multiple steps to secure, the invention uses a simple rotational engagement where the natural direction of insertion automatically secures the cartridge, and removal requires a deliberate reverse rotation action.
3Reliability
If the sticker cartridge is firmly coupled to the sticker placer, then the reliability of sticker placement is improved, but the wear on coupling components increases
Solution Approach 1:
The rotatable coupling member allows the system to dynamically transition between engaged and disengaged states. When the cartridge is removed and replaced, the coupling members are briefly disengaged, reducing cumulative wear while maintaining firm coupling during the actual sticker placement operation.
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
The invention relates to a sticker placing device (1) for placing stickers (3) and/or patches onto a surface, the sticker placing device comprising: a cylindrical guiding body (10, 20) having an upper opening (24), a lower opening (22) and a guiding channel extending therebetween; a sticker cartridge (2) for holding a stack of stickers and/or patches, which sticker cartridge is insertable into the guiding channel via the lower opening; and a sticker placer (12) which is moveable connected to the guiding body (10, 20) and which comprises a pusher (50) which extends at least partly into the sticker cartridge and the guiding body for pushing onto the stack, wherein the sticker cartridge comprises first coupling members (37) and the sticker placer comprises second coupling members (57), wherein the first and second coupling members are configured to form a one¬ way coupling, wherein the one-way coupling allows movement of the sticker cartridge in the insert direction and blocks movement in a direction opposite to the insert direction.